US 20150351457A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2015/0351457 A1 Liu (43) Pub. Date: Dec. 10, 2015

(54) ELECTRONIC CIGARETTE AND METHOD Publication Classification FOR ADJUSTING FLOW RATE OF GAS FLOW OF ELECTRONIC CGARETTE (51) Int. Cl. A24F 47/00 (2006.01) (71) Applicants:Qiuming Liu, (US); KIMREE (52) U.S. Cl. HI-TECH INC., RoadTown Tortola CPC ...... A24F 47/008 (2013.01) (VG) (57) ABSTRACT An electronic cigarette comprises a cigarette rod with a bat (72) Inventor: Qiuming Liu, Shenzhen (CN) tery, an atomizer configured to atomize tobacco oil contained therein, and an airflow path configured to enable the air to (21) Appl. No.: 14/759,369 flow into the atomizer. A pressure regulating valve unit arranged in the airflow path includes a floating sphere con (22) PCT Fled: Jan. 3, 2014 figured to close or open the airflow path according to an airflow direction and to adjust the airflow rate flowing into the (86) PCT NO.: PCT/CN2014/0701 12 airflow path. By means of arranging the pressure regulating S371 (c)(1), valve, it is able to control the airflow rate flowing into the (2) Date: Jul. 6, 2015 atomizer, hence adjust the amount of Smoke Sucked to change tastes of smoking and meet users different needs. Moreover, when blowing to the electronic cigarette, the pressure regu (30) Foreign Application Priority Data lating valve unit will be in a closed state to avoid tobacco oil Jan. 5, 2013 (CN) ...... PCT/CN2013/07.0053 inside the atomizer flowing to the battery and a control board.

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ELECTRONIC CGARETTE AND METHOD atomizer is away from the cigarette rod, the airflows towards FOR ADUSTING FLOW RATE OF GAS the mouthpiece when Smoking, and a pressure inside the FLOW OF ELECTRONIC CGARETTE electronic cigarette is lower than the atmospheric pressure outside, and an opening degree of the floating sphere varies TECHNICAL FIELD with a pressure difference between the pressure inside and outside the electronic cigarette to adjust the flow rate of the air 0001. The present application relates to the field of elec flowing into the airflow path; the air flows backwards the tronic products, and more particularly to an electronic ciga mouthpiece when blowing into the electronic cigarette from rette and a method for adjusting flow rate of gas flow of the the mouthpiece, a pressure inside the electronic cigarette is electronic cigarette. lower than the atmospheric pressure outside, and the airflow pathis sealed up by the floating sphere to avoid the tobacco oil BACKGROUND inside the atomizer flowing to the battery of the cigarette rod. 0002 With a rising attention to health, people come to 0007. In the electronic cigarette of the present application, realize the tobacco is harmful to health, thus the electronic a holding cavity is defined inside the cigarette rod and the cigarette which is both able to ease a craving for tobacco and battery is accommodated in the holding cavity, a Smoke cavity less harmful to health is produced. The electronic cigarette is is defined inside the atomizer and the tobacco oil is contained usually configured to atomize specially prepared tobacco oil in the Smoke cavity, and the holding cavity and the Smoke and simulate tastes of Smoking. When preparing the tobacco cavity are connected to form the airflow path; and the floating oil, materials harmful to health, such as nicotine, tar and the sphere open or close the airflow path according to an airflow like, are removed to eliminate the harm to health. As the direction inside the electronic cigarette and a pressure differ tobacco oil contains no harmful material that makes people be ence between the pressures inside and outside the electronic addicted, such as nicotine, tar and the like, the nicotine addic cigarette, so that the holding cavity and the Smoke cavity are tion will be reduced after Smoking the electronic cigarette. correspondingly communicated or isolated. Therefore, the electronic cigarette has an effect on assisting in 0008. In the electronic cigarette of the present application, quitting Smoking. the pressure regulating valve unit is arranged between the 0003. In the prior art, the electronic cigarette consists of a cigarette rod and the atomizer, the electronic cigarette further cigarette rod, an atomizer and a mouthpiece. A battery is comprises a first bracket and a second bracket, one end of the arranged in the cigarette rod. The tobacco oil is stored in the pressure regulating valve unit is adapted to and fixed on the atomizer. An intake hole connected to the outside is defined first bracket, and the other end of the pressure regulating valve on the cigarette rod or an end of the cigarette rod to enable the unit is adapted to and fixed on the second bracket. air outside to flow into the electronic cigarette. However, the 0009. In the electronic cigarette of the present application, airflow rate flowing into the electronic cigarette is fixed the pressure regulating valve unit includes a valve gland and because the diameter of the intake hole is fixed, and it is a Support base, and a through hole is defined at the top of the difficult to adjust the amount of Smoke by adjusting the air valve gland, the two ends of the Support base are open ends flow rate. In addition, the tobacco oil in the atomizer will be and a plurality of protrusions are spaced on an inner wall of blew into the cigarette rod if users blow into the mouthpiece the Support base, and the floating sphere is movably clamped by mistake when using the electronic cigarette, which will in the protrusions defined on the inner wall of the support render the battery and related connection circuits to be dam base. aged by the tobacco oil. 0010. In the electronic cigarette of the present application, the pressure regulating valve unit further includes a valve BRIEF SUMMARY gland and a Support base, and a through hole is defined at the 0004 Aiming at the drawbacks in the prior art that it is top of the valve gland, an intake hole configured to enable the difficult to adjust flow rate of gas flow of the electronic ciga air outside to flow in and a pilot hole communicated with the rette and it is easy to cause the leakage of the tobacco oil, an intake hole are formed inside the support base, and the pilot objective of the present application is to provide an electronic hole is extended and radially enlarged from the intake hole to cigarette and a method for adjusting flow rate of gas flow of one side that is close to the valve gland, and the floating the electronic cigarette. A pressure regulating valve is used to sphere is movably abutted against the intake hole under the improve tastes of smoke effectively and adjust the airflow rate guidance of the pilot hole to seal up or open the airflow path. by a puffing force. Furthermore, it can avoid the tobacco oil 0011. In the electronic cigarette of the present application, inside a mouthpiece or inside an atomizer flowing into a a circular hole is formed inside the Support base, and the cigarette rod when users blowing at the mouthpiece. circular hole extends from the pilot hole to one side that is 0005. The technical solution of the present application to away from the intake hole, and the intake hole, the pilot hole Solve the technical problem is providing an electronic ciga and the circular hole are arranged with the same axis. rette comprising a cigarette rod with a battery, an atomizer 0012. In the electronic cigarette of the present application, configured to atomize tobacco oil contained therein, and an a centerline of the floating sphere and that of the intake hole airflow path configured to enable the air to flow into the are coaxially arranged, and a diameter of the floating sphere is atomizer, a pressure regulating valve unit is arranged in the larger than a diameter of the intake hole. airflow path, and the pressure regulating valve unit includes a 0013. In the electronic cigarette of the present application, floating sphere configured to close or open the airflow path the floating sphere is clamped at a connection between the according to an airflow direction and to adjust an airflow rate intake hole and the pilot hole to seal up the intake hole. flowing into the airflow path. 0014. In the electronic cigarette of the present application, 0006. In the electronic cigarette of the present application, a Support part and at least two transition parts are defined on the electronic cigarette further comprises a mouthpiece an inner wall of the Support base, and the intake hole is arranged at one side of the atomizer and the side of the defined in the center of the support part, and the at least two US 2015/0351457 A1 Dec. 10, 2015 transition parts extend along the intake hole and are evenly lifetime of the electronic cigarette. Furthermore, the adjusting spaced, the at least two transition parts are enclosed to form method is easy to complete, there is no need to operate manu the pilot hole. ally, and the airflow rate flowing into the electronic cigarette 0015. In the electronic cigarette of the present application, can be adjusted just by controlling the puffing force, and it is the pressure regulating valve unit further includes a sealing hence able to adjust the amount of Smoke Sucked by the user. part, two ends of the sealing part are open ends and the sealing part is abutted against the valve gland respectively. BRIEF DESCRIPTION OF THE DRAWINGS 0016. In the electronic cigarette of the present application, 0025. The present application will be further described one open end at the bottom of the sealing part is connected to with reference to the accompanying drawings and embodi the intake hole of the support base to enable the air outside to ments in the following, in the accompanying drawings: flow into the intake hole via the open end at the bottom of the 0026 FIG. 1 is an exploded view of an electronic cigarette Sealing part. of the present application; 0017. In the electronic cigarette of the present application, 0027 FIG. 2 is a sectional view of an electronic cigarette when blowing into the electronic cigarette from the mouth of the present application; piece, the floating sphere is sealed up in the intake hole under the guidance of the pilot hole to make the holding cavity and 0028 FIG. 3 is an exploded view of a pressure regulating the Smoke cavity isolate from each other, thus avoiding the valve unit of an electronic cigarette of a preferred embodi tobacco oil flowing to the battery of the cigarette rod. ment of the present application; 0018. In the electronic cigarette of the present application, 0029 FIG. 4 is a sectional view of a pressure regulating the floating sphere is a steel ball, a glass ball, a ceramic ball or valve unit of the electronic cigarette of the preferred embodi a plastic ball. ment of the present application; 0019. In another aspect, the present application further 0030 FIG. 5 is a diagram of an airflow direction when the provides a method for adjusting flow rate of gas flow of an pressure regulating valve unit shown in FIG.3 and FIG. 4 is in electronic cigarette, the electronic cigarette comprises a ciga Smoking state. rette rod with a battery, an atomizer configured to atomize DETAILED DESCRIPTION OF THE PREFERRED tobacco oil contained therein, and an airflow path configured EMBODIMENT to enable the air to flow into the atomizer, the method com prises the following steps: 0031. In order to explain the purpose, the technical fea 0020 S1: blowing or sucking from one end of the atom tures, and the effect of the present application more clearly, izer, and making a floating sphere of a pressure regulating the specific embodiments of the present application will be valve unit arranged in the airflow path open or close the described in detail referring to the drawings. airflow path according to a blowing airflow direction or a 0032 Referring to FIG. 1 and FIG. 2, the present applica Sucking airflow direction, thus adjusting the airflow rate flow tion provides an electronic cigarette 10, comprising a ciga ing into the airflow path. rette rod 100 with a battery 104, a mouthpiece 200, an atom 0021. In the method for adjusting flow rate of gas flow of izer 300, a pressure regulating valve unit 400, a first bracket the electronic cigarette of the present application, the elec 500 and a second bracket 600. The cigarette rod 100, the first tronic cigarette comprises a mouthpiece 200 arranged at one bracket 500, the pressure regulating valve unit 400, the sec side of the atomizer and the side of the atomizer is away from ond bracket 600, the atomizer 300 and the mouthpiece 200 are the cigarette rod, and the step S1 comprises the following connected in turn to cooperatively form the electronic ciga steps: rette. Wherein, the atomizer 300 containing tobacco oil is 0022 S11: Sucking from the mouthpiece and generating configured to atomize the tobacco oil and produce Smoke. airflow flowing towards the mouthpiece to make a pressure The battery 104 inside the cigarette rod 100 is configured to inside the electronic cigarette lower than the atmospheric power the atomizer 300 to heat and atomize the tobacco oil, pressure outside, and an opening degree of the floating sphere and the atomized tobacco oil becomes Smoke that is then varies with a pressure difference between the pressure inside discharged via the mouthpiece 200 and sucked by the user. and outside the electronic cigarette to adjust the airflow rate 0033. The mouthpiece 200 is arranged at an end of the flowing into the airflow path; atomizer 300, wherein the end of the atomizer is away from 0023 S12: blowing at the mouthpiece and generating air the cigarette rod 100. That is to say, the cigarette rod 100 and flow flowing backwards the mouthpiece to make a pressure the mouthpiece 200 are arranged at two ends of the atomizer inside the electronic cigarette higher than the atmospheric 300 respectively. A holding cavity 102 is defined inside the pressure outside, and the airflow path is sealed up by the cigarette rod 100. The battery 104 is accommodated in the floating sphere to avoid tobacco oil inside the atomizer flow holding cavity 102. A smoke cavity 302 is defined inside the ing to the battery inside the cigarette rod. atomizer 300. The tobacco oil is contained in the Smoke 0024. By implementing the electronic cigarette and the cavity 302. The holding cavity 102 and the smoke cavity 302 method for adjusting flow rate of gas flow of the electronic are connected to each other to cooperatively form an airflow cigarette of the present application, the following advantages path. The airflow path is configured to enable the airflow of can be achieved: by means of arranging a pressure regulating the electronic cigarette circulate and to enable the air outside valve unit in the airflow path, it is able to control the airflow to flow into the atomizer 300, so that the smoke produced by rate flowing into the atomizer, hence adjust the amount of atomizing the tobacco oil will flow into the mouthpiece 200 Smoke Sucked to change tastes of Smoking and meet users for users' Smoking. different needs. Moreover, when blowing to the electronic 0034. The pressure regulating valve unit 400 is arranged in cigarette, the pressure regulating valve unit will be in a closed the airflow path, and the pressure regulating valve unit 400 is state, it is able to avoid tobacco oil inside the atomizer flowing configured to adjust a flow rate of the outside airflowing into to the battery and a control board and hence prolong the the electronic cigarette. That is to say, the pressure regulating US 2015/0351457 A1 Dec. 10, 2015 valve unit 400 can be arranged in the holding cavity 102, in 0038. The valve gland 420 is in a hollow cylindrical struc the smoke cavity 302, or between the holding cavity 102 and ture approximately and is open at one end, and a through hole the smoke cavity 302. Those skilled in the art should know 4202 is defined at the other end of the valve gland 420. The that after the atomizer 300 atomizes the tobacco oil and pro through hole 4202 is configured to enable the air outside to duces smoke, the Smoke is able to flow towards the mouth flow into the atomizer 300. It is understood that the shape of piece 200 under the action of smoking. In order to ensure that the through hole 4202 is not limited here, and the shape of the the smoke in the atomizer 300 flows towards the mouthpiece through hole 4202 can be circular, square or other shape. In 200, it is needed to push air into the electronic cigarette, so the present embodiment, the shape of the through hole 4202 is that the Smoke produced by atomizing the tobacco oil can circular. flow from atomizer 300 to the mouthpiece 200 under the driving of the air when Smoking. The pressure regulating 0039. The support base 424 is in a cylindrical structure, valve unit 400 is configured to adjust the flow rate of the and two ends of the Support base 424 are open ends, and a outside airflowing into the atomizer 300 and hence adjust the diameter of the support base 424 is smaller thana diameter of amount of smoke Sucked by users. In a specific embodiment, the valve gland 420. The diameter of a support base 424 is the pressure regulating valve unit 400 is arranged between the preferable that the support base 424 is exactly sheathed in the cigarette rod 100 and the atomizer 300. One end of the pres valve gland 420. That is to say, the valve gland 420 sheathes Sure regulating valve unit 400 is connected to the cigarette rod outside the Support base 424. A plurality of protrusions is 100 via the first bracket 500, the other end of the pressure spaced inside the Support base 424, and the protrusions can be regulating valve unit 400 is connected to the atomizer 300 via in a cuboid structure. the Second bracket 600. The first bracket 500 and the second 0040. An intake hole 4241, a pilot hole 4242 and a circular bracket 600 are in the same shape and structure. Specifically, hole 4243 are formed inside the support base 424 and are the first bracket 500 and the second bracket 600 may be connected to each other, so that an approximate stepped designed in a hollow cylindrical structure with an internal through hole is formed inside the support base 424. In the thread or an external thread. The cigarette rod 100 and the present embodiment, the intake hole 4241, the pilot hole 4242 atomizer 300 are connected by a threaded connection. and the circular hole 4243 are coaxially arranged and con 0035. When smoking at the mouthpiece 200, the pressure nected, so that the air outside flows through the intake hole regulating valve unit 400 will be opened under the action of 4241, the pilot hole 4242, the circular hole 4243 and the suction to make the air outside flow into the atomizer 300, and through hole 4202 in sequence, and then flows into the atom then the smoke produced by atomizing the tobacco oil will iZer 300. flow with the air into the mouthpiece 200 for smoking. When 0041. The intake hole 4241 is defined at one side of the users are not Smoking at the mouthpiece 200, the pressure support base 424, away from the valve gland 420. The intake regulating valve unit 400 will be closed and make the smoke hole 4241 is configured to enable the air outside to flow into cavity 302 and the holding cavity 102 be isolated from each the support base 424. The shape of the intake hole 4241 can be other. That is to say, the airflow path is closed and the air circular, square or other irregular shapes. The shape of the outside cannot flow into the atomizer 300, so that users cannot intake hole 4241 is circular in the present embodiment. The smoke. Furthermore, when accidentally blowing into the pilot hole 4242 is extended and radially enlarged from the electronic cigarette at the mouthpiece 200, the pressure regu intake hole 4241 to one side that is close to the valve gland lating valve unit 400 will be closed because the airflow direc 420. That is to say, the pilot hole 4242 is a tapered hole tion at the mouthpiece 200 is opposite to the intake direction approximately, and the pilot hole 4242 is gradually widened of the pressure regulating valve unit 400. Therefore, it is able and extends to one side that is close to the valve gland 420 to to avoid the leakage of the tobacco oil and prolong the lifetime achieve a purpose of leading the floating sphere 422 moving of the battery 104. up and down, so that the floating sphere 422 movably abutted 0036 Moreover, users can adjust the airflow rate flowing against the intake hole 4241 under the guidance of the pilot into the atomizer 300 by controlling their suction force, to hole 4242 to seal up or open the intake hole 4241. Specifi further adjust the amount of smoke and improve the tastes and cally, the pilot hole 4242 is configured to lead the floating experience of users. The way the air flowing into the elec sphere 422 moving up and down. That is to say, the pilot hole tronic cigarette is a prior art, for example, defining an intake 4242 is configured to lead the floating sphere 422 moving on the cigarette rod 100 to enable the air outside to flow into towards the circular hole 4243 or the intake hole 4241. When the electronic cigarette, or defining an intake on a lamp cap Smoking at the mouthpiece 200, the floating sphere 422 can that is away from the mouthpiece 200 to enable the air outside move up under the action of Suction, and the floating sphere to flow into the electronic cigarette and then pass through the 422 moves away from the intake hole 4241 to make the air 100 and finally flow to the pressure regulating valve unit 400. outside flow into the valve gland 420 via the intakehole 4241. Because the way the airflowing into the electronic cigarette is That is to say, the pressure regulating valve unit 400 is open a prior art and is uncorrelated with the improvement of the and air outside flows through the intake hole 4241, the pilot present application, the corresponding structure configured to hole 4242, the circularhole 4243 and the through hole 4202 in enable the air to flow into the electronic cigarette is not sequence, and then flows into the atomizer 300. When users showed in the drawings. are not Smoking or blowing into the electronic cigarette at the 0037 Referring to FIGS. 3-5, the pressure regulating mouthpiece 200, the pilot hole 4242 is configured to lead the valve unit 400 provided in a preferred embodiment of the floating sphere 422 moving down to close the pressure regu present application comprises a valve gland 420, a floating lating valve unit 400 via the floating sphere 422 sealed in the sphere 422, a Support base 424 and a sealing part 426. The intake hole 4241, so that air outside cannot flow into the floating sphere 422 is movably clamped inside the Support atomizer 300. Moreover, it is able to avoid the tobacco oil that base 424, and the sealing part 426 is abutted against the valve has not been atomized in the atomizer 300 flowing to the gland 420 via the support base 424. cigarette rod 100. US 2015/0351457 A1 Dec. 10, 2015

0042. The circular hole 4243 is circular and extends from from the mouthpiece 200. The pressure inside the electronic the pilot hole 4242 to one side that is away from the intake cigarette is higher than the atmospheric pressure outside at hole 4241. The circular hole 4243 is connected to the through this moment. The floating sphere 422 moves down along the hole 4202 defined at the top end of the valve gland 420, so that pilot hole 4242 and is finally clamped in the intake hole 4241 air outside can flow into the atomizer 300 via the through hole so that the airflow path is sealed up and the holding cavity 102 4202. It is understandable that the circular hole 4243 is not is isolated from the smoke cavity 302. It can avoid the tobacco essential to the present embodiment. The pilot hole 4242 may oil that has not been atomized in the atomizer 300 flowing to extend straightly to one side that is close to the valve gland the battery 104 inside the cigarette rod 100, and it can avoid 420 to form a tapered hole. the battery 104 being damaged when users blows into the 0043. In another embodiment of the present invention, a electronic cigarette by mistake and prolong the lifetime of the support part 425 and at least two transition parts 423 are battery. defined on an inner wall of the support base 424. The support 0045. The floating sphere 422 can be defined in a hollow part 425 is defined at one side of the support base 424, away spherical shape. The weight of the floating sphere 422 should from the valve gland 420. The support part is sleeved in the not be too heavy, otherwise the floating sphere 422 cannot be support base 424. One end of the support part 425 is coplanar sucked up. The size of a floating sphere 422 is preferable that with one end of the support base 424, away from the valve the floating sphere 422 is clamped inside of the Support base gland 420. The intake hole 4241 is defined in the center of the 424 and can seal up the intake hole 4241. The location of the Support part 425 and axially runs through the whole Support through hole 4202 defined in the support base 424 is corre part 425. The transition part 423 extends from the intake hole sponding to that of the floating sphere 422. The centerline of 4241 to one side that is close to the valve gland 420. The at the floating sphere 422 and the centerline of the intake hole least two transition parts 423 are evenly spaced on the side 4241 are coaxially arranged. A diameter of the floating sphere wall of the support base 424. Each transition part 423 is a is larger than a diameter of the intake hole 4241, so that the conic Surface that is gradually widened and extends from the floating sphere is clamped at a connection between the intake intake hole 4241 to one side that is close to the valve gland hole 4241 and the pilot hole 4242 to seal up the intake hole 420. The at least two transition parts 423 in the present 4241. Specifically, in the present embodiment, the floating embodiment are enclosed to form the pilot hole 4242. sphere 422 can be a steel ball, glass ball, ceramic ball or 0044) The floating sphere 422 is configured to close or plastic ball. The floating sphere 422 can also be a small ball open the airflow path based on an airflow direction inside the with elasticity and the like, and it is not limited here. electronic cigarette and a pressure difference between the 0046. The sealing part 426 is also in a hollow cylindrical pressures inside and outside the electronic cigarette, which structure. A diameter of the sealing part 426 is larger than a makes the holding cavity 102 be isolated from or be con diameter of the Support base 424. The size of a sealing part nected to the smoke cavity 302, and then it is able to adjust 426 is preferable that the support base 424 is accommodated airflow rate flowing into the electronic cigarette. Specifically, inside the sealing part 426 exactly. One end of the sealing part the air inside the electronic cigarette flows towards the mouth 426 is abutted against one end of the valve gland 420, which piece 200 when users are smoking at the mouthpiece 200. The means that the diameter of the sealing part 426 is equal to the pressure inside the electronic cigarette is lower than the atmo diameter of the valve gland 420. Two ends of the sealing part spheric pressure outside at this moment. The floating sphere 426 are open ends, wherein, one open end defined at the 422 is open under a pressure difference between the pressures bottom of sealing part 426 is an inlet for the air outside. The inside and outside the electronic cigarette, i.e. the floating open end defined at the bottom of sealing part 426 is con sphere 422 moves up under the pressure difference to open the nected to the intake hole 4241 correspondingly, so that the air intake hole 4241, to enable the air outside to flow into the outside flows into the intake hole 4241 via the open end airflow path. The pressure difference between the pressures defined at the bottom of the sealing part 426, and then flows inside and outside the electronic cigarette varies with users through the pilot hole 4242, the circular hole 4243 and the Suction force at the mouthpiece 200 when Smoking, and an through hole 4202 in sequence, and finally flows into the opening degree of the floating sphere 422 varies with the atomizer 300. pressure difference the pressures inside and outside the elec 0047 Specifically, in the present embodiment, when tronic cigarette, which enables the adjustment to the flow rate assembling the pressure regulating valve unit 400, the Support of the air outside flowing into the airflow path. When suction base 424 is arranged in the hollow portion of the sealing part force of users is large, the pressure difference is large and the 426 to correspond the open end defined at the bottom of upwardly moving distance of the floating sphere 422 is hence sealing part 426 to the intake hole 4241 defined in the support large, so that the floating sphere 422 is completely separated base 424; then the floating sphere 422 is clamped inside the from the intake hole 4241 and moves towards the pilot hole support base 424 to seal up the intake hole 4241; lastly, the 4242. The pressure regulating valve unit 400 is completely gland 420 is sheathed outside the support base 424 and abut open at this moment and the holding cavity 102 is connected ted against the sealing part 426 to complete the assembly of to the smoke cavity 302. The airflow rate flowing from the the pressure regulating valve unit 400. outside to the airflow path via the intake hole 4241 is maxi 0048 FIG. 5 is a diagram of an airflow direction (arrows mum so that it can produce more Smoke for users and improve indicate the airflow direction) of the air outside when the the experience of users. When suction force of users is small, electronic cigarette is in Smoking state, and the electronic the pressure difference is Small and the upwardly moving cigarette includes a pressure regulating valve unit 400 with distance of the floating sphere 422 is hence small. The airflow the floating sphere 422. Specifically, in the present embodi rate flowing from into the airflow path is small so that it can ment, if users suck at the mouthpiece 200 when Smoking, the produce less Smoke and help users quit Smoking. When blow floating sphere 422 will be sucked upwardly under the action ing into the electronic cigarette from the mouthpiece 200, air of suction to open the intake hole 4241, so that the air outside inside the electronic cigarette flows in a direction that is away flows through the open end defined at the bottom of sealing US 2015/0351457 A1 Dec. 10, 2015

part 426, the intake hole 4241 defined inside the support base close the airflow path according to a blowing airflow direction 424, the pilot hole 4242, the circular hole 4243 and the or a Sucking airflow direction, thus adjusting the airflow rate through hole 4202 defined in the valve gland 420 in sequence, flowing into the airflow path. and then flows into the atomizer 300. The atomized smoke in 0053 Referring to FIGS. 2-5, the electronic cigarette 10 in the atomizer 300 will be driving by the air to flow into the the present application comprises a cigarette rod 100 with a mouthpiece 200 for smoking. battery 104, a mouthpiece 200, an atomizer 300, a pressure 0049. The electronic cigarette of the present application is regulating valve unit 400, a first bracket 500 and a second capable of adjusting the amount of the Smoke by changing the bracket 600. The cigarette rod 100, the first bracket 500, the Suction force when Smoking. Specifically, when Smoking pressure regulating valve unit 400, the second bracket 600, forcibly at the mouthpiece 200, the upwardly moving dis the atomizer 300 and the mouthpiece 200 are connected in tance of the floating sphere 422 is large due to a large Suction turn to cooperatively form the electronic cigarette. Wherein, force, and the airflow rate flowing into the pressure regulating the atomizer 300 containing tobacco oil is configured to valve unit 400 via the intakehole 4241 of the support base 424 atomize the tobacco oil and produce smoke. The battery 104 is hence large, so that the airflow rate inside the atomizer 300 inside the cigarette rod 100 is configured to power the atom is large. Therefore, the amount of smoke that has been driven izer 300 to heat and atomize the tobacco oil, and the atomized by the air outside and flows to the mouthpiece 200 is large. tobacco oil becomes Smoke that is then discharged via the Thus, it is able to increase the amount of Smoke and meet the mouthpiece 200 and sucked by the user. needs of users. And when the Suction force at the mouthpiece 0054 The mouthpiece 200 is arranged at an end of the 200 is small, the upwardly moving distance of the floating atomizer 300, away from the cigarette rod 100. That is to say, sphere 422 is small, so that the airflow rate inside the atomizer the cigarette rod 100 and the mouthpiece 200 are arranged at 300 is small and the amount of smoke is also small as a result. two ends of the atomizer 300 respectively. A holding cavity Therefore, when Smoking, it is able to adjust the amount of 102 is defined inside the cigarette rod 100. The battery 104 is the Smoke by changing the Suction force to control the accommodated in the holding cavity 102. A smoke cavity 302 upwardly moving distance of the floating sphere 422, and is defined inside the atomizer 300. The tobacco oil is con then it is able to change tastes of Smoking and meet different tained in the smoke cavity 302. The holding cavity 102 and needs of users. Furthermore, because the floating sphere 422 the smoke cavity 302 are connected to each other and coop scrolls up and down under the action of the airflow, the float eratively form an airflow path. The airflow path is configured ing sphere 422 will knock the inner wall of the support base to enable the airflow of the electronic cigarette circulate and 424 with a gurgling Sound to simulate the gurgling Sound of a to enable the air outside to flow into the atomizer 300, so that hookah, which improves the experience of users. Moreover, it the smoke produced by atomizing the tobacco oil will flow is able to adjust the tastes of Smoking by changing the weight into the mouthpiece 200 for users' Smoking. and the size of the floating sphere 422. It will need larger 0055. The pressure regulating valve unit 400 is arranged in Suction force to make the floating sphere 422 be sucked up the airflow path, and the pressure regulating valve unit 400 is when the weight of the floating sphere 422 is large. The configured to adjust a flow rate of the outside airflowing into floating sphere 422 will not be sucked up if the suction force the electronic cigarette. That is to say, the pressure regulating is Small, so as to fail in Smoking. valve unit 400 can be arranged in the holding cavity 102, in 0050. In addition, when there is no suction at the mouth the smoke cavity 302, or between the holding cavity 102 and piece 200, the floating sphere 422 will move downwardly the smoke cavity 302. The pressure regulating valve unit 400 along the pilot hole 4242 and fall back into the intake hole configured to adjust the airflow rate flowing into the elec 4241 to seal up the intake hole 4241, so that the air outside tronic cigarette, comprises a valve gland 420, a floating cannot flow into the atomizer 300. It is able to avoid the sphere 422, a Support base 424 and a sealing part 426. The tobacco oil inside the atomizer 300 leaking into the battery floating sphere 422 is movably clamped inside the Support 104 of the cigarette rod 100. It is able to avoid the tobacco oil base 424. The sealing part 426 is abutted against the valve leaking out and the lifetime of the battery 104 is hence pro gland 420 via the support base 424. longed. Meanwhile, if users accidentally blowing into the 0056. The valve gland 420 is in a hollow cylindrical struc electronic cigarette at the mouthpiece 200, floating sphere ture approximately and is open at one end, and a through hole 422 will move downwardly along the pilot hole 4242 and fall 4202 is defined at the other end of the valve gland 420. The back into the intake hole 4241 to seal up the intake hole 4241 through hole 4202 is configured to enable the air outside to as the blowing airflow direction is opposite to the intake flow into the atomizer 300. An intake hole 4241, a pilot hole direction of the pressure regulating valve unit 400. The 4242 and a circular hole 4243 are formed inside the support tobacco oil inside the atomizer 300 is blocked by the floating base 424 and are connected to each other, so that an approxi sphere 422 and will not flow into the cigarette rod 100, which mate stepped through hole is formed inside the Support base avoids the battery and circuits connected to the battery being 424. The intakehole 4241 is defined at one side of the support damaged by the tobacco oil and prolongs the lifetime of the base 424, away from the valve gland 420. The intake hole electronic cigarette. 4241 is configured to enable the air outside to flow into the support base 424. The pilot hole 4242 is extended and radially 0051. The present application further provides a method enlarged from the intake hole 4241 to one side that is close to of adjusting airflow rate of the electronic cigarette, and the the valve gland 420. That is to say, the pilot hole 4242 is a method can be realized by the electronic cigarette described tapered hole approximately, and the pilot hole 4242 is gradu above. Specifically, the method comprises the following ally widened and extends to one side that is close to the valve steps: gland 420 to achieve a purpose of leading the floating sphere 0052 S1: blowing or sucking from one end of the atomizer 422 moving up and down. The circular hole 4243 is circular 300, and making the floating sphere 422 of the pressure and extends from the pilot hole 4242 to one side that is away regulating valve unit 400 arranged in the airflow path open or from the intake hole 4241. The circular hole 4243 is con US 2015/0351457 A1 Dec. 10, 2015

nected to the through hole 4202 defined at the top end of the control board, thus prolonging the lifetime of the electronic valve gland 420 so that the air outside can flow into the cigarette. Furthermore, the adjusting method is easy to com atomizer 300 via the through hole 4202. plete, and there is no need to operate manually. The airflow 0057 When sucking or blowing into the electronic ciga rate flowing into the electronic cigarette can be adjusted just rette at the mouthpiece 200, the floating sphere 422 is con by controlling the Suction force, and the amount of Smoke figured to open or close the airflow path accordingly to the Sucked by the user is hence adjusted. blowing airflow direction or sucking airflow direction, thus it 0063. The embodiments of the present application have is able to adjust the airflow rate flowing into the electronic been described accompanying with the drawings, while the cigarette. In the present embodiment, step S1 comprises two present application is not limit to the aforementioned specific Sub-steps: embodiments. The specific embodiments are merely a hint 0058 S11: Sucking at the mouthpiece 200 and generating rather than a limit. Various changes may be made and equiva airflow flowing towards the mouthpiece to make a pressure lents may be substituted without departing from the purpose inside the electronic cigarette lower than the atmospheric of the application and the scope of the claims by those skilled pressure outside, and an opening degree of the floating sphere in the art under the teaching of the present application, but all 422 varies with a pressure difference between the pressures the changes and equivalents will be included within the scope inside and outside the electronic cigarette to adjust the airflow of the present application. rate flowing into the airflow path; 1. An electronic cigarette, comprising a cigarette rod with 0059) S12: blowing at the mouthpiece 200 and generating a battery, an atomizer configured to atomize tobacco oil con airflow flowing backwards the mouthpiece 200 to make the tained therein, and an airflow path configured to enable the air pressure inside the electronic cigarette higher than the pres to flow into the atomizer, wherein, a pressure regulating valve Sure outside, and the airflow path is sealed up by the floating unit is arranged in the airflow path, and the pressure regulat sphere 422 to avoid tobacco oil inside the atomizer 300 flow ing valve unit includes a floating sphere configured to close or ing to the battery 104 inside the cigarette rod 100. open the airflow path according to an airflow direction and to 0060. In the step S11, when users are smoking at the adjust an airflow rate flowing into the airflow path. mouthpiece 200, the air inside the electronic cigarette flows 2. The electronic cigarette of claim 1, wherein, the elec towards the mouthpiece 200. The pressure inside the elec tronic cigarette further comprises a mouthpiece arranged at tronic cigarette is lower than the atmospheric pressure outside one side of the atomizer and the side of the atomizer is away at this moment. The floating sphere 422 is configured to close from the cigarette rod, the air flows towards the mouthpiece or open the intake hole 4241 under the pressure difference When Smoking, a pressure inside the electronic cigarette is between the pressures inside and outside the electronic ciga lower than the atmospheric pressure outside, and an opening rette. That is to say, the floating sphere 422 moves up by the degree of the floating sphere varies with a pressure difference pressure difference, which will make the intake hole 4241 between the pressures inside and outside the electronic ciga open to enable the air outside to flow into the airflow path. The rette to adjust the airflow rate flowing into the airflow path; the pressure difference between the pressures inside and outside air flows backwards the mouthpiece when blowing into the the electronic cigarette varies with users suction force at the electronic cigarette from the mouthpiece, the pressure inside mouthpiece 200 when Smoking, and an opening degree of the the electronic cigarette is lower than the atmospheric pressure floating sphere 422 varies with the pressure difference the outside, and the airflow path is sealed up by the floating pressures inside and outside the electronic cigarette, which sphere to avoid the tobacco oil inside the atomizer flowing to enables the adjustment to the flow rate of the air outside the battery of the cigarette rod. flowing into the airflow path. 3. The electronic cigarette of claim 2, wherein, a holding 0061. In the step S12, when blowing into the electronic cavity is defined inside the cigarette rod and the battery is cigarette from the mouthpiece 200, the air inside the elec accommodated in the holding cavity, a Smoke cavity is tronic cigarette flows in a direction that is away from the defined inside the atomizer and the tobacco oil is contained in mouthpiece 200. The pressure inside the electronic cigarette the Smoke cavity, and the holding cavity and the Smoke cavity is higher than the atmospheric pressure outside at this are connected to form the airflow path; and the floating sphere moment. The floating sphere 422 moves down along the pilot open or close the airflow path according to the airflow direc hole 4242 and is finally clamped in the intake hole 4241 so tion in the electronic cigarette and the pressure difference that the airflow path is sealed up and the holding cavity 102 is between the pressures inside and outside the electronic ciga isolated from the smoke cavity 302. It can avoid the tobacco rette, so that the holding cavity and the Smoke cavity are oil that has not been atomized in the atomizer 300 flowing to correspondingly communicated or isolated. the battery 104 inside the cigarette rod 100, and it can avoid 4. The electronic cigarette of claim3, wherein, the pressure the battery 104 being damaged when users blows into the regulating valve unit is arranged between the cigarette rod and electronic cigarette by mistake and prolong the lifetime of the the atomizer, the electronic cigarette further comprises a first battery. bracket and a second bracket, one end of the pressure regu 0062. In conclusion, in the electronic cigarette and the lating valve unit is adapted to and fixed on the first bracket, method for adjusting airflow rate of the electronic cigarette of and the other end of the pressure regulating valve unit is the present application, by means of arranging a pressure adapted to and fixed on the second bracket. regulating valve unit 400 in the airflow path, it is able to 5. The electronic cigarette of claim3, wherein, the pressure control the airflow rate flowing into the atomizer 300, further regulating valve unit includes a valve gland and a Support to adjust the amount of Smoke Sucked, to change tastes of base; a through hole is defined at the top of the valve gland; smoking and meet different needs of users. Further, when the two ends of the Support base are open ends, a plurality of blowing to the electronic cigarette, as the pressure regulating protrusions are spaced on an inner wall of the Support base, valve unit 400 is in a closed state, it is able to avoid tobacco oil and the floating sphere is movably clamped in the protrusions inside the atomizer 300 flowing to the battery 104 and a defined on the inner wall of the support base. US 2015/0351457 A1 Dec. 10, 2015

6. The electronic cigarette of claim3, wherein, the pressure ance of the pilot hole to make the holding cavity and the regulating valve unit further includes a valve gland and a Smoke cavity isolate from each other, thus avoiding the support base; a through hole is defined at the top of the valve tobacco oil flowing to the battery of the cigarette rod. gland; an intake hole configured to enable the air outside to 14. The electronic cigarette of claim 1, wherein, the float flow in and a pilot hole communicated with the intake hole are ing sphere is a steelball, a glass ball, a ceramic ball or a plastic formed inside the support base, the pilot hole is extended and ball. radially enlarged from the intake hole to one side that is close to the valve gland, and the floating sphere is movably abutted 15. A method for adjusting flow rate of gas flow of an against the intake hole under the guidance of the pilot hole to electronic cigarette, wherein the electronic cigarette com seal up or open the airflow path. prises a cigarette rod with a battery, an atomizer configured to 7. The electronic cigarette of claim 6, wherein, a circular atomize tobacco oil contained therein, and an airflow path hole is formed inside the support base, the circular hole configured to enable the air to flow into the atomizer; the extends from the pilot hole to one side that is away from the method comprises the following steps: intake hole, and the intake hole, the pilot hole and the circular S1: blowing or Sucking from one end of the atomizer, and hole are arranged with the same axis. making a floating sphere of a pressure regulating valve 8. The electronic cigarette of claim 7, wherein, a centerline unit arranged in the airflow path open or close the airflow of the floating sphere and that of the intake hole are coaxially path according to a blowing airflow direction or a Suck arranged, and a diameter of the floating sphere is larger than ing airflow direction, thus adjusting the flow rate flowing a diameter of the intake hole. into the airflow path. 9. The electronic cigarette of claim 8, wherein, the floating sphere is clamped at a connection between the intake hole and 16. The method for adjusting flow rate of gas flow of the the pilot hole to seal up the intake hole. electronic cigarette of claim 15, wherein, the electronic ciga 10. The electronic cigarette of claim 6, wherein, a support rette comprises a mouthpiece arranged at one side of the part and at least two transition parts are defined on an inner atomizer and the side of the atomizer is away from the ciga wall of the support base, the intake hole is defined in the rette rod; the step S1 comprises the following steps: center of the Support part, the at least two transition parts S11: Sucking from the mouthpiece and generating airflow extendalong the intake hole and are evenly spaced, and the at flowing towards the mouthpiece to make a pressure least two transition parts are enclosed to form the pilot hole. inside the electronic cigarette lower than the atmo 11. The electronic cigarette of claim 6, wherein, the pres spheric pressure outside, and an opening degree of the Sure regulating valve unit further includes a sealing part, two floating sphere varies with a pressure difference between ends of the sealing part are open ends and the sealing part is the pressures inside and outside the electronic cigarette abutted against the valve gland. to adjust the flow rate flowing into the airflow path; 12. The electronic cigarette of claim 11, wherein, one open end at the bottom of the sealing part is connected to the intake S12: blowing at the mouthpiece and generating airflow hole of the support base to enable the air outside to flow into flowing backwards the mouthpiece to make a pressure the intake hole via the open end at the bottom of the sealing inside the electronic cigarette higher than the atmo part. spheric pressure outside, and the airflow path is sealed 13. The electronic cigarette of claim 6, wherein, when up by the floating sphere to avoid tobacco oil inside the blowing into the electronic cigarette from the mouthpiece, the atomizer flowing to the battery inside the cigarette rod. floating sphere is sealed up in the intake hole under the guid k k k k k