CN112690499A

CN112690499A - Electronic cigarette

Info

Publication number: CN112690499A
Application number: CN202011530249.5A
Authority: CN
Inventors: 叶曙兵; 杨小云; 何伟
Original assignee: Shenzhen Zhaowei Machinery and Electronics Co Ltd
Current assignee: Shenzhen Zhaowei Machinery and Electronics Co Ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-04-23
Anticipated expiration: 2040-12-22
Also published as: CN112690499B

Abstract

The invention relates to the technical field of smoking sets and provides an electronic cigarette. Specifically, this electron cigarette includes: the suction nozzle is connected to the shell, the shell is provided with an installation space and a heating cavity which are mutually independent, the suction nozzle is communicated with the installation space and the heating cavity, and the shell is provided with a vent hole for communicating the installation space with the atmosphere; the control module is arranged in the installation space; the negative pressure detector is arranged in the installation space and is electrically connected with the control module; the heating device is arranged in the heating cavity and is electrically connected with the control module; the gas-liquid mixing mechanism is arranged in the installation space and is controlled by the control module to work to convey quantitative tobacco tar or quantitative air to the heating cavity. By the application of the technical scheme, the problems that the tobacco tar is easy to leak and the amount of the heated and atomized tobacco tar cannot be controlled in the electronic cigarette in the prior art are solved.

Description

Electronic cigarette

Technical Field

The invention belongs to the technical field of smoking sets, and particularly relates to an electronic cigarette.

Background

In the prior art, electronic cigarettes on the market are in air flue type structural design, namely, two ends of an air flue are communicated, one end of the air flue is used for air inlet, the other end of the air flue is used for air outlet (namely, a suction nozzle), an atomizer, a smoke bomb and the like are arranged at the middle position of the air flue, the smoke bomb is directly connected with the atomizer, smoke oil in the smoke bomb seeps into the atomizer through a cellular network or a structural part of the cellular network, a heating wire of the atomizer heats the smoke oil to generate smoke, and the smoke enters an oral cavity along with air sucked by the suction nozzle.

Because the tobacco tar of the cigarette bullet of current electron cigarette is infiltration atomizer, the condition that the tobacco tar was revealed takes place easily after long-time the use to, the mode that the tobacco tar oozes into the atomizer can't be controlled by the atomizing volume of being heated (no matter be volume capacity or quality capacity), therefore often there is the condition that the heating atomization is incomplete and the tobacco tar is burnt to appear in the atomizer.

Disclosure of Invention

The invention aims to provide an electronic cigarette, and aims to solve the problems that in the electronic cigarette in the prior art, tobacco tar is easy to leak, and the amount of the heated and atomized tobacco tar cannot be controlled.

In order to achieve the purpose, the invention adopts the technical scheme that: an electronic cigarette, comprising: the suction nozzle is connected to the shell, the shell is provided with an installation space and a heating cavity which are mutually independent, the suction nozzle is communicated with the installation space and the heating cavity, and the shell is provided with a vent hole for communicating the installation space with the atmosphere; the control module is arranged in the installation space; the negative pressure detector is arranged in the installation space and is electrically connected with the control module; the heating device is arranged in the heating cavity and is electrically connected with the control module; the gas-liquid mixing mechanism is arranged in the installation space and is controlled by the control module to work to convey quantitative tobacco tar or quantitative air to the heating cavity.

Optionally, the gas-liquid mixing mechanism comprises: the assembly shell is provided with a first channel, a second channel, a pumping channel and an output channel, one end of each of the first channel, the second channel and the output channel is communicated with the pumping channel, the other end of each of the second channels is communicated with the installation space, and the other end of each of the output channels is communicated with the heating cavity; the liquid storage bin is communicated with the other end of the first channel; the pumping device is arranged on the pumping channel and is used for enabling the pumping channel to form suction negative pressure or pump out positive pressure; the first opening and closing device is arranged on the first channel and is used for communicating or closing the first channel; the second opening and closing device is arranged on the second channel and is used for communicating or closing the second channel; the driving device is connected with the pumping device through a transmission device to output power and is electrically connected with the control module; the one-way valve is arranged in the output channel and is used for communicating or closing the output channel; the output channel, the first channel and the second channel are selected and communicated according to a preset sequence.

Optionally, the pumping device includes a first transmission end and a plunger connected to the first transmission end, the transmission device is connected to the first transmission end, and the driving device drives the first transmission end to move through the transmission device, so that the first transmission end drives the plunger to reciprocate in the pumping channel.

Optionally, the first transmission end includes a gear portion and a cam portion, the rotation axes of the gear portion and the cam portion are coaxial and rotate synchronously, the transmission device is a transmission gear set, the gear portion is meshed with an output gear of the transmission gear set, the end of the plunger facing the transmission device is provided with a transmission groove, the cam portion is assembled in the transmission groove, and the cam portion drives the plunger to reciprocate in the pumping channel.

Optionally, the first opening and closing device includes a second transmission end and a first switch valve, the transmission device is connected to the second transmission end, and the driving device drives the second transmission end to move through the transmission device, so that the second transmission end drives the first switch valve to open or close.

Optionally, the second transmission end includes a first engaging gear and a first cam rod, the transmission device is a transmission gear set, the first engaging gear is engaged with an output gear of the transmission gear set, a first end of the first cam rod is fixedly connected to the first engaging gear, a rotation axis of the first cam rod is coaxial with a rotation axis of the first engaging gear, the first switch valve is installed in the first passage, and a cam-shaped circumferential side wall of a second end of the first cam rod abuts against the first switch valve to drive the first switch valve to communicate with or close the first passage.

Optionally, the second opening and closing device includes a third transmission end and a second switch valve, the transmission device is connected to the third transmission end, and the driving device drives the third transmission end to move through the transmission device, so that the third transmission end drives the second switch valve to open or close.

Optionally, the third transmission end includes a second meshing gear and a second cam rod, the transmission device is a transmission gear set, the second meshing gear is meshed with an output gear of the transmission gear set, a first end of the second cam rod is fixedly connected with the second meshing gear, a rotation axis of the second cam rod is coaxial with a rotation axis of the second meshing gear, the second switch valve is installed in the second passage, and a cam-shaped circumferential side wall of a second end of the second cam rod abuts against the second switch valve to drive the second switch valve to communicate with or close the second passage.

Optionally, the gas-liquid mixing mechanism further comprises a diaphragm valve structure, the diaphragm valve structure is assembled in the assembly shell and comprises a frame body, a first diaphragm, a second diaphragm and a third diaphragm, the first diaphragm, the second diaphragm and the third diaphragm are all connected to the frame body, the first diaphragm is a one-way valve, the second diaphragm corresponds to the first channel and is communicated or closed to the first channel and the pumping channel, and the third diaphragm corresponds to the second channel and is communicated or closed to the second channel and the pumping channel.

Optionally, the first opening and closing device and the second opening and closing device are both electromagnetic control valves, and the first opening and closing device and the second opening and closing device are both electrically connected with the control module.

Optionally, the check valve is also an electromagnetic control valve, and the check valve is electrically connected with the control module.

Optionally, the electronic cigarette further includes an atomizing nozzle, the atomizing nozzle is installed at an output port of the output channel, the atomizing nozzle is located in the heating cavity, and the atomizing nozzle faces the heating device.

The invention has at least the following beneficial effects:

when the electronic cigarette is used, a user sucks air through the suction nozzle, the air in the internal installation space is quickly sucked, although part of air is supplemented into the internal installation space through the vent hole, the air suction speed is higher than the air supplement speed, negative pressure is generated in the internal installation space, the negative pressure detector sends a signal to the control module when detecting the negative pressure condition of the internal installation space, the control module knows that the user performs suction action after receiving the signal, the control module controls the gas-liquid mixing mechanism to work, smoke oil is pumped into the heating cavity, is heated by the heating device to generate smoke, and then the pumped air is introduced into the heating cavity to pump the smoke out of the suction nozzle and enter the oral cavity of the user. Therefore, the electronic cigarette provided by the embodiment of the invention adopts a mode of pumping the tobacco tar and air to generate and output smoke, so that the tobacco tar cannot directly permeate into the heating cavity and only can be pumped by the gas-liquid mixing mechanism, thus the leakage of the tobacco tar is prevented, and the tobacco tar is pumped to the heating cavity by the gas-liquid mixing mechanism, so that the volume capacity of the tobacco tar which is heated and atomized to generate the smoke can be accurately controlled, the volume capacity of the same pumped air can also be accurately controlled, namely, the smoke conveyed into the oral cavity of a user can be quantitatively controlled. In addition, in this electron cigarette, no longer use conventional switch structure to open or close the electron cigarette, but use negative pressure detector and control module cooperation work to realize intelligent control, the user only needs to carry out the suction through the suction nozzle and can start the electron cigarette and carry out the action of smoking, stops the suction action when the user, then atmospheric pressure equals with atmospheric pressure in the installation space (negative pressure disappears promptly), then the whole stop work thereupon of electron cigarette for this electron cigarette is more intelligent, convenient.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic perspective view of an assembled electronic cigarette according to a first embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is a block diagram of a design structure of an electronic cigarette according to a first embodiment of the present invention;

fig. 4 is a schematic structural diagram of a first perspective view of a gas-liquid mixing mechanism of an electronic cigarette according to a first embodiment of the invention;

fig. 5 is a schematic structural diagram of a second perspective view of the gas-liquid mixing mechanism of the electronic cigarette according to the first embodiment of the invention;

fig. 6 is a front view of a gas-liquid mixing mechanism of an electronic cigarette according to a first embodiment of the present invention;

FIG. 7 is a left side view of FIG. 6;

FIG. 8 is a cross-sectional view taken along line A-A of FIG. 6;

FIG. 9 is a cross-sectional view taken along line B-B of FIG. 7;

fig. 10 is a first perspective structural diagram of a third split case of the gas-liquid mixing mechanism of the electronic cigarette according to the first embodiment of the invention;

fig. 11 is a structural schematic diagram of a second view angle of a third split case of the gas-liquid mixing mechanism of the electronic cigarette according to the first embodiment of the invention;

fig. 12 is a schematic structural diagram of a fourth split housing of the gas-liquid mixing mechanism of the electronic cigarette according to the first embodiment of the invention at a first viewing angle;

fig. 13 is a structural schematic diagram of a fourth split housing of the gas-liquid mixing mechanism of the electronic cigarette according to the first embodiment of the invention at a second viewing angle;

fig. 14 is an assembly structural diagram of a pumping device of a gas-liquid mixing mechanism of an electronic cigarette according to a first embodiment of the invention;

FIG. 15a is a cross-sectional view taken in the direction of C-C in FIG. 14;

figure 15b is a cross-sectional view of the plunger of the gas-liquid mixing mechanism of the electronic cigarette according to the first embodiment of the present invention continuing to push from the position of figure 15 a;

figure 15c is a cross-sectional view of the plunger of the gas-liquid mixing mechanism of the electronic cigarette according to the first embodiment of the present invention continuing to push from the position of figure 15 b;

fig. 16 is a first view structural diagram of a diaphragm valve structure of a gas-liquid mixing mechanism of an electronic cigarette according to a first embodiment of the invention;

fig. 17 is a second view structural diagram of a diaphragm valve structure of a gas-liquid mixing mechanism of an electronic cigarette according to a first embodiment of the invention;

fig. 18 is a comparison graph of a plunger operating curve, an air intake operating curve, and a liquid intake operating curve of a four-stroke operation mode of the air-liquid mixing mechanism of the electronic cigarette according to the first embodiment of the present invention;

fig. 19 is a block diagram of a design structure of an electronic cigarette according to a second embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

301. a housing; 311. a vent hole; 302. a suction nozzle; 303. a negative pressure detector; 304. an auxiliary mounting seat; 305. a heating device; 307. a control module; 90. a lithium battery module; 200. a gas-liquid mixing mechanism; 10. assembling the shell; 100. a liquid storage bin; 101. a first split shell; 102. a second split shell; 103. a third split shell; 1031. a trident rib plate; 104. a fourth split case; 105. a bin cover; 11. an external mount; 12. an interior mounting space; 14. a heating cavity; 131. a first channel; 132. a second channel; 133. a pumping channel; 134. an output channel; 20. a drive device; 30. a transmission device; 40. a pumping device; 411. a gear portion; 412. a cam portion; 42. a plunger; 421. a transmission groove; 50. a first opening and closing device; 51. a first meshing gear; 521. a first cam lever; 522. a first on-off valve; 60. a second opening and closing device; 61. a second meshing gear; 621. a second cam lever; 622. a second on-off valve; 70. a diaphragm valve structure; 71. a frame body; 72. a first diaphragm; 73. a second diaphragm; 74. a third diaphragm; 80. a separator.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 5, a first embodiment of the present invention provides an electronic cigarette. Specifically, the electronic cigarette comprises a housing 301, a suction nozzle 302, a control module 307, a negative pressure detector 303, a heating device 305 and a gas-liquid mixing mechanism 200, wherein in the process of assembling and forming the electronic cigarette, the suction nozzle 302 is connected to an open end of the housing 301, the other end of the housing 301 is a closed end, an internal installation space 12 and a heating cavity 14 are formed inside the housing 301, the internal installation space 12 and the heating cavity 14 are independent from each other, a vent hole 311 is formed in a wall of the housing 301, the vent hole 311 is communicated with the internal installation space 12, the suction nozzle 302 is communicated with the heating cavity 14, that is, when a user performs a suction action through the suction nozzle 302, the user can suck gas out from the internal installation space 12 and the heating cavity 14. Further, a control module 307, a negative pressure detector 303 and the gas-liquid mixing mechanism 200 are installed in the internal installation space 12, wherein the control module 307 and the negative pressure detector 303 are installed in the internal installation space 12 through an auxiliary installation base 304, a heating device 305 is installed in the heating chamber 14, the negative pressure detector 303 is electrically connected with the control module 307, the heating device 305 is electrically connected with the control module 307, and the control module 307 controls the gas-liquid mixing mechanism 200 so as to control the gas-liquid mixing mechanism 200 to operate to deliver smoke or air to the heating chamber 14 (when the gas-liquid mixing mechanism 200 performs a pumping action, either smoke or air is sucked in, and correspondingly, when the gas-liquid mixing mechanism 200 performs a pumping action, either smoke or air is output).

When the electronic cigarette according to the embodiment of the present invention is used, a user sucks air through the suction nozzle 302, air in the internal installation space 12 is quickly sucked out, although a part of air is supplemented into the internal installation space 12 through the vent holes 311 formed in the housing 301, as shown in fig. 1 and 2, because the air suction speed is greater than the air supplement speed, negative pressure is generated in the internal installation space 12 (air pressure in the internal installation space 12 is less than atmospheric pressure, and air pressure in the internal installation space 12 is negative relative to atmospheric pressure), at this time, the negative pressure detector 303 detects that the negative pressure condition of the internal installation space 12 sends a signal to the control module 307, and the control module 307 knows that the user is performing a suction action when receiving the signal, so that the control module 307 controls the air-liquid mixing mechanism 200 to work, so that smoke oil is pumped into the heating cavity 14 and is heated by the heating device 305 to generate smoke, and thereupon pumps air into the heating chamber 14 to mix with the smoke and to smoothly convey the smoke out of the mouthpiece 302 and into the user's mouth. Therefore, the electronic cigarette provided by the embodiment of the invention adopts a mode of pumping the tobacco tar and air to generate and pump the output smoke, so that the tobacco tar cannot directly permeate into the heating cavity 14 and can only be pumped by the gas-liquid mixing mechanism 200, thereby preventing the leakage of the tobacco tar, and the tobacco tar is pumped to the heating cavity 14 by the gas-liquid mixing mechanism 200, so that the volume capacity of the tobacco tar which is heated and atomized to generate the smoke can be accurately controlled, the volume capacity of the same pumped air can also be accurately controlled, namely, the smoke conveyed into the oral cavity of a user can be quantitatively controlled. In addition, in this electron cigarette, no longer use conventional switch structure to open or close the electron cigarette, but use negative pressure detector 303 and control module 307 cooperation work to realize intelligent control, the user only needs to carry out the suction through suction nozzle 302 and can start the electron cigarette and carry out the action of smoking, when the user stops the action of smoking, then atmospheric pressure is equal with atmospheric pressure in the internally mounted space 12 (negative pressure disappears promptly), then the whole stop work of electron cigarette thereupon (negative pressure detector 303 still is in standby state this moment), make this electron cigarette more intelligent, convenient.

In the first embodiment, the gas-liquid mixing mechanism 200 of the electronic cigarette includes an assembly housing 10, a liquid storage bin 100, a pumping device 40, a first opening and closing device 50, a second opening and closing device 60, a driving device 20, and a one-way valve, the assembly housing 10 is formed with a first channel 131, a second channel 132, a pumping channel 133, and an output channel 134, one end of each of the first channel 131, the second channel 132, and the output channel 134 is communicated with the pumping channel 133, the other end of the second channel 132 is communicated with the installation space, the other end of the output channel 134 is communicated with the heating cavity 14, the liquid storage bin 100 is communicated with the other end of the first channel 131, the pumping device 40 is installed in the pumping channel 133, and the pumping device 40 is used for enabling the pumping channel 133 to form negative suction pressure or positive pump.

As shown in fig. 6 to 9, the first opening and closing device 50 is installed in the internal installation space 12 formed by the assembly housing 10 (i.e., installed in the first channel 131), the first opening and closing device 50 has a second transmission end and a first switch control structure, the second transmission end is connected with the output end of the transmission device 30, the first switch control structure is assembled at the first channel 131, and the second transmission end drives the first switch control structure to control the first channel 131 to be connected with or disconnected from the liquid storage bin 100 for storing liquid; like the first opening and closing device 50, the second opening and closing device 60 is installed in the internal installation space 12 (i.e., installed in the second channel 132), the second opening and closing device 60 has a third transmission end and a second switch control structure, the third transmission end is connected with the output end of the transmission device 30, the second switch control structure is assembled at the second channel 132, and the third transmission end drives the second switch control structure to control the second channel 132 to be connected or disconnected with the external environment. And, a check valve is installed in the inner installation space 12 and corresponds to the output passage 134, and the check valve is applied to control the liquid or gas (only one of the two is output at each output) in the pumping passage 133 to be unidirectionally delivered from the output passage 134, i.e., the check valve controls the pumping passage 133 to be communicated with or disconnected from the output passage 134. Thus, the pumping means 40, the first switching control structure, the second switching control structure and the check valve allow the reservoir 100 to be alternatively connected to or disconnected from the pumping channel 133 through the first channel 131, the external environment through the second channel 132 and the output channel 134 in a predetermined order. That is, when the pumping means 40 performs a pumping action in the pumping passage 133, at this time, the check valve is in the closed state to disconnect the pumping passage 133 from the output passage 134 (i.e., the output passage 134 is blocked), and only one of the first passage 131 and the second passage 132 is in the connected state and the other is in the disconnected state (blocked), for example, the first passage 131 is controlled to be in the connected state by the first switching control structure and the second passage 132 is controlled to be in the disconnected state by the second switching control means (or, the first passage 131 is controlled to be in the disconnected state by the first switching control structure and the second passage 132 is controlled to be in the connected state by the second switching control means). That is: when the first channel 131 is connected and the second channel 132 is disconnected, the target liquid is sucked into the pumping channel 133 in the imbibing process; when the first passage 131 is disconnected and the second passage 132 is connected, air is sucked into the pumping passage 133 in this case for an inhalation process. When the pumping device 40 performs a pushing action in the pumping channel 133, the check valve is opened to connect the pumping channel 133 and the output channel 134, and the first channel 131 and the second channel 132 are both in a disconnected state (blocked), the pumped liquid or gas is pumped out of the output channel 134.

In the process of mixing the target liquid and the air by using the gas-liquid mixing mechanism, the driving device 20 provides power to the pumping device 40 through the transmission device 30 to perform the pumping action and the pushing action, and the pumping action of the pumping device 40 is consistent every time, that is, the volume capacity of the liquid or the gas pumped every time is the same, so that the volume capacity of the liquid or the gas output by the pumping device 40 in each pushing action is the same, that is, the volume capacity of the smoke output to the oral cavity of the user obtained by mixing the gas and the liquid every time is the same, thereby achieving the purpose of quantitative mixing.

In this embodiment, pumping device 40 includes a first drive end and a plunger 42 coupled to the first drive end for movement therewith. During assembly, the transmission device 30 is connected to the first transmission end, and the driving device 20 drives the first transmission end to move through the transmission device 30 and then drives the plunger 42 to move, so that the plunger 42 is driven by the first transmission end to reciprocate in the pumping channel 133. Thus, when the plunger 42 draws in the pumping channel 133, a negative suction pressure is created in the pumping channel 133, thereby pumping the tobacco tar or air; when the plunger 42 performs a pushing action in the pumping channel 133, a positive pumping pressure is created in the pumping channel 133 to pump out the tobacco tar or air pumped into the pumping channel 133. Thus, when it is desired to change the volume of mixing volume available for each mixing, only the length of the stroke of plunger 42 in pumping channel 133 needs to be changed. Further, if it is desired to obtain a larger gas-liquid mixture volume per unit time, it is possible to obtain a larger gas-liquid mixture volume per unit time by simply controlling the power output of the drive device 20 and increasing the movement frequency of the plunger 42.

As shown in fig. 6 to 9, the transmission 30 includes a driving gear (not shown), an intermediate reduction gear (not shown), a first output gear (not shown), a second output gear (not shown), and a third output gear (not shown), in which the driving device 20 is powered by a motor, the driving gear is mounted on a driving shaft of the motor, the intermediate reduction gear is engaged with the driving gear, and the intermediate reduction gear is engaged with the first output gear to transmit power. Then, the second output gear and the third output gear are respectively in meshing transmission with the first output gear, that is, the linear velocity of the second output gear is equal to the linear velocity of the third output gear, and when the radii of the second output gear and the third output gear are equal, the rotational angular velocities of the second output gear and the third output gear are also equal. In this way, the power provided by the driving device 20 is divided into three paths by the first output gear, the second output gear and the third output gear to be transmitted and output backwards, and the specific transmission output paths are as follows: the first output gear is in transmission connection with the first transmission end, the second output gear is in transmission connection with the second transmission end, and the third output gear is in transmission connection with the third transmission end. The driving gear, the intermediate transmission gear, and the portion of the first output gear that meshes with the intermediate reduction gear are fitted in the internal installation space 12 partitioned by the partition 80. In practice, the partition 80 is used as an intermediate support during assembly, i.e. the rotating shaft on which the intermediate reduction gear is mounted, the two rotating shafts on which the second output gear and the third output gear are mounted, are each used as an intermediate support through the partition 80.

Referring to fig. 8 and 9 in combination with fig. 14 to 15c, fig. 15a to 15c show the dynamic process of the movement of the engagement between the first transmission end and the plunger 42 during the pushing action of the plunger 42. Specifically, the first output gear transmits power to the first transmission end, and the first transmission end includes a gear portion 411 and a cam portion 412, the rotation axes of the gear portion 411 and the cam portion 412 are coaxial and rotate synchronously, the cam portion 412 may be designed as a cam, or may be designed as an eccentrically mounted circular wheel (i.e., the rotation axis around which the circular wheel rotates is eccentrically arranged with respect to the central axis of the circular wheel, also referred to as an eccentric wheel), and the gear portion 411 is in mesh transmission with the first output gear. The plunger 42 is provided with a transmission groove 421 at the end facing the transmission device 30, the cam portion 412 is fitted in the transmission groove 421, and the cam portion 412 drives the plunger 42 to move, that is, during the synchronous rotation of the cam portion 412 driven by the gear portion 411, the cam surface of the cam portion 412 rotates to periodically push the top wall of the transmission groove 421, so that the plunger 42 can reciprocate along the pumping channel 133. The cam portion 412 is preferably assembled by using an eccentric wheel.

In one of the other possible embodiments, the transmission 30 also employs a transmission gear set, the driving device 20 employs a motor, and the first transmission end of the pumping device 40 is a rack connected to the end of the plunger 42, and the rack is engaged with the first output gear of the transmission gear set. In this way, when the motor rotates in the forward direction, the plunger 42 performs a pumping operation, and when the motor rotates in the reverse direction, the plunger 42 performs a pushing operation.

In another possible embodiment, the transmission device 30 is a synchronous belt (or chain, preferably a toothed belt), the driving device 20 is a motor, a gear (i.e., a first output gear) is mounted at the end of the rotating shaft of the motor, and a follower gear is correspondingly mounted on the inner wall of the inner mounting space 12, and the synchronous belt is wound around the first output gear and the follower gear. At this time, the first driving end of the pumping device 40 is a connection pin extending perpendicular to the central axis of the plunger 42, and the connection pin is fixed to the timing belt. In this way, when the motor rotates in the forward direction, the plunger 42 performs a pumping operation, and when the motor rotates in the reverse direction, the plunger 42 performs a pushing operation.

As shown in fig. 9, the second transmission end is formed by combining the first engaging gear 51 and the first cam rod 521, the first switch control structure is the first switch valve 522, the first end of the first cam rod 521 is fixedly connected with the first engaging gear 51, the first cam rod 521 is coaxial with the rotation axis of the first engaging gear 51, the first switch valve 522 is installed in the first channel 131, and the cam-shaped circumferential side wall of the second end of the first cam rod 521 abuts against the first switch valve 522 to drive the first switch valve 522 to connect or disconnect the first channel 131. Further, the third transmission end is a second meshing gear 61 and a second cam rod 621, the second switch control structure is a second switch valve 622, the first end of the second cam rod 621 is fixedly connected with the second meshing gear 61, the second cam rod 621 is coaxial with the rotation axis of the second meshing gear 61, the second switch valve 622 is installed in the second channel 132, and the cam-shaped circumferential side wall of the second end of the second cam rod 621 abuts against the cam-shaped circumferential side wall of the second end of the second cam rod 621The second switch valve 622 to turn the second switch valve 622 on or off the second passage 132. In the present embodiment, as shown in fig. 18, an example is given in which the plunger 42 completes four strokes to complete one gas-liquid mixing cycle, and when the number of strokes performed by the plunger 42 to complete one gas-liquid mixing cycle is other (the number of strokes is an even number equal to or greater than 4), the angles rotated by the corresponding first cam lever 521 and second cam lever 621 for each stroke of the plunger 42 are different. In the four-stroke gas-liquid mixing cycle of the plunger 42 in the present embodiment, when the plunger 42 performs a reciprocating stroke in the pumping channel 133, the plunger 42 performs a pumping action as one stroke and performs a pushing action as one stroke, and the gas-liquid mixing mechanism performs a gas-liquid mixing operation to require the plunger 42 to perform a four-stroke reciprocating process. As shown in fig. 18, the operation process of the gas-liquid mixing mechanism to complete one gas-liquid mixing will be described with the plunger 42 in the initial state of being drawn out to the maximum stroke in the pumping channel 133, and the target liquid is stored in the pumping channel 133 at this time: when the driving device 20 is started to output power, the plunger 42 is driven to perform a pushing action first, so as to pump out the liquid in the pumping channel 133, and simultaneously the second cam bar 621 rotates to pass through

The second switching valve 622 is initially opened and the first cam lever 521 is also rotated

The first on-off valve 522 starts to be closed, and the plunger 42 continues to be pushed to the maximum stroke. The plunger 42 then begins pumping action, wherein the second passage 132 is open for a suction stroke, and the plunger 42 completes pumping action to complete the suction stroke, wherein the first cam lever 521 rotates to pi. The plunger 42 then performs a pushing action to pump air out, and the second cam lever 621 rotates to

The air is pumped out entirely, and the first cam lever 521 is rotated to

The first switch valve 522 is opened and the plunger 42 continues to complete the pushing action. Next, the plunger 42 performs the pumping action again, and the first switch valve 522 is opened and the second switch valve 622 is closed until the plunger moves back to the initial state to complete the fluid suction process, so that the plunger 42 completes a four-stroke cycle to complete a gas-liquid mixing operation.

In one of other possible embodiments, the transmission device 30 also adopts a transmission gear set, the driving device 20 adopts a motor, the second transmission end includes a rack and a wedge connected to an end of the rack, the first switch control structure is the first switch valve 522, an inclined surface of the wedge abuts against the first switch valve 522, and a chute is correspondingly installed on the inner wall of the internal installation space 12, the wedge is assembled in the chute, the wedge can slide along the chute under the driving of the rack, and the rack is engaged with the second output gear of the transmission gear set. Therefore, the rotating shaft of the motor rotates to drive the second output gear to rotate, the second output gear drives the rack to move, the rack drives the wedge block to slide in the sliding groove, and the first switch valve 522 is used for connecting or disconnecting the first channel 131. Similarly, the third transmission end includes the rack and connects the wedge at the rack tip, and the second on-off control structure is second ooff valve 622 promptly, and the inclined plane and the second ooff valve 622 butt of wedge to correspond the installation spout on inside installation space 12 inner wall, the wedge assembly is in the spout, and the wedge can slide along the spout under the rack drives, rack and transmission gear group's third output gear engagement. Therefore, the rotating shaft of the motor rotates to drive the third output gear to rotate, the third output gear drives the rack to move, the rack drives the wedge block to slide in the sliding groove, and the second switch valve 622 is connected or disconnected with the second channel 132.

In another possible embodiment, the transmission device 30 is a timing belt (or a chain, preferably a toothed belt), the driving device 20 is a motor, a second output gear is mounted at the end of the rotating shaft of the motor, and a follower gear is mounted on the inner wall of the inner installation space 12 corresponding to the first channel 131, and the timing belt is wound around the second output gear and the follower gear. At this moment, the second transmission end includes the transmission straight-bar and connects the wedge at a transmission straight-bar tip, and another tip of transmission straight-bar is connected on the hold-in range, and first on-off control structure is first ooff valve 522 promptly, the inclined plane and the first ooff valve 522 butt of wedge to correspond the installation spout on inside installation space 12 inner wall, the wedge assembly is in the spout, and the wedge can slide along the spout under the hold-in range drives. So, the pivot of motor rotates, drives second output gear and rotates, and second output gear drives the hold-in range and removes, and the hold-in range drives the wedge and slides in the spout, then first ooff valve 522 realizes connecting or breaks off first passageway 131. Similarly, the third transmission end includes the transmission straight-bar and connects the wedge at an end of transmission straight-bar, another tip of transmission straight-bar is connected on the hold-in range, the second on-off control structure is second ooff valve 622 promptly, the inclined plane and the second ooff valve 622 butt of wedge to correspond second passageway 132 installation spout on inside installation space 12 inner wall, the wedge assembly is in the spout, the wedge can slide along the spout under the hold-in range drives. And, a third output gear is installed at the end of the rotation shaft of the motor, a follower gear is assembled on the inner wall of the inner installation space 12 corresponding to the second passage 132, and a synchronous belt is wound around the third output gear and the follower gear. So, the pivot of motor rotates, drives the rotation of third output gear, and third output gear drives the hold-in range removal, and the hold-in range drives the wedge and slides in the spout, then second ooff valve 622 realizes connecting or breaks off second passageway 132.

As shown in fig. 5, 8 to 13, the mount case 10 of the gas-liquid mixing mechanism includes a first split case 101, a second split case 102, a third split case 103, and a fourth split case 104, which are connected in this order. An external mounting seat is formed on the first split case 101, the first split case 101 and the second split case 102 are covered to form a part of the internal mounting space 12, and a partition plate 80 is installed between the first split case 101 and the second split case 102 to divide the part of the internal mounting space 12 formed by the first split case 101 and the second split case 102 into two parts, wherein the transmission device 30 is assembled by using the partition plate 80 as an auxiliary support; the first channel 131 and the second channel 132 are formed by combining and communicating the corresponding channels of the third component housing 103 and the fourth component housing 104 after the third component housing 103 and the fourth component housing 104 are covered, the pumping channel 133 is arranged on the third component housing 103, and the output channel 134 is arranged on the fourth component housing 104. In the present embodiment, the assembly housing 10 further includes a cover 105, the cover 105 and the fourth split housing 104 cover the liquid storage chamber 100 (wherein, the output channel 134 may be designed to pass through the liquid storage chamber 100, or may be designed to be parallel to the liquid storage chamber 100), and the first channel 131 is opened in the fourth split housing 104. In addition, the reservoir 100 may be a separate tank body which is communicated with the first channel 131 through a pipe.

As shown in fig. 16 and 17, the gas-liquid mixing mechanism further includes a membrane valve structure 70, the membrane valve structure 70 is assembled in the internal installation space 12, the membrane valve structure 70 includes a frame 71, a first membrane 72, a second membrane 73 and a third membrane 74, the first membrane 72, the second membrane 73 and the third membrane 74 are all connected to the frame 71, specifically, the first membrane 72 is the aforementioned one-way valve, the second membrane 73 corresponds to the first channel 131 to connect or disconnect the first channel 131 and the pumping channel 133, and the third membrane 74 corresponds to the second channel 132 to connect or disconnect the second channel 132 and the pumping channel 133. As shown in fig. 11 and 12, the first diaphragm 72, the second diaphragm 73, and the third diaphragm 74 are mounted corresponding to the trifurcate rib 1031 integrally formed on the third split housing 103, and after the third split housing 103 and the fourth split housing 104 are closed, a transition mounting space is formed therebetween, in which the diaphragm valve structure 70 is mounted, and the trifurcate rib 1031 is divided into three independent spaces. During the pumping action of the plunger 42: the first diaphragm 72 disconnects the output channel 134 from the pumping channel 133 (i.e. the one-way valve is closed), the second diaphragm 73 connects the first channel 131 with the pumping channel 133, and the third diaphragm 74 connects the second channel 132 with the pumping channel 133, meanwhile, the first opening and closing device 50 connects the first channel 131 with the liquid storage bin 100, and the second opening and closing device 60 disconnects the second channel 132 from the external environment, so that liquid pumping is realized; or, the first diaphragm 72 disconnects the output channel 134 from the pumping channel 133 (i.e. the one-way valve is closed), the second diaphragm 73 connects the first channel 131 with the pumping channel 133, and the third diaphragm 74 connects the second channel 132 with the pumping channel 133, meanwhile, the first opening and closing device 50 disconnects the first channel 131 from the liquid storage bin 100, and the second opening and closing device 60 connects the second channel 132 with the external environment, so that air suction is realized. During the pushing action of the plunger 42, the first diaphragm 72 connects the output channel 134 and the pumping channel 133 (the one-way valve is opened), the second diaphragm 73 disconnects the pumping channel 133 and the first channel 131, and the third diaphragm 74 disconnects the pumping channel 133 and the second channel 132, so that during the pushing and outputting of the plunger 42, the second diaphragm 73 blocks the first channel 131 from the first on-off valve 522 to the transitional assembly space, and the third diaphragm 74 blocks the second channel 132 from the second on-off valve 622 to the transitional assembly space, so that the liquid or gas sucked into the pumping channel 133 by the plunger 42 during the pushing and outputting cannot enter the first channel 131 and the second channel 132, so that the liquid or gas in the pumping channel 133 is completely output from the output channel 134, and at the moment, the one-way valve is opened.

In order to accurately and automatically control the driving device 20 to perform variable-speed work, the driving device 20 uses a motor to provide driving force for example, so as to accurately control the gas-liquid mixing mechanism to perform mixing ratio of the target liquid and the air, and therefore, the gas-liquid mixing mechanism further includes a control module, the control module is electrically connected with the driving device 20, and the control module is used for controlling the output rotating speed of the motor.

In the first embodiment, the electronic cigarette is further provided with an atomizing nozzle (not shown) installed at the output port of the output channel 134, and the atomizing nozzle is located in the heating cavity 14, and the atomizing nozzle is further installed toward the heating device 305, so that the tobacco tar output from the output channel 134 is atomized into fine droplets by the atomizing nozzle and then sprayed to the heating device 305 to be heated to generate smoke, and thus the heating of the tobacco tar is more sufficient, and the efficiency of converting the tobacco tar into the smoke by heating is higher.

Further, this electron cigarette still includes lithium cell module 90, and lithium cell module 90 can charge and discharge repeatedly and recycle, promptly can recycle this electron cigarette. Specifically, the lithium battery module 90 is installed in the installation space, the control module 307, the negative pressure detector 303, the heating device 305, and the driving device 20 of the gas-liquid mixing mechanism 200 are all electrically connected to the lithium battery module 90, and the lithium battery module 90 provides working energy. By applying the lithium battery module 90, the electronic cigarette can be repeatedly charged and discharged to realize recycling.

As shown in fig. 19, a block diagram of a design structure of an electronic cigarette according to a second embodiment of the present invention is shown. Compared with the electronic cigarette of the first embodiment, the electronic cigarette of the second embodiment has the following differences.

In the second embodiment, the first opening and closing device 50, the second opening and closing device 60, and the check valve are electrically controlled valve devices controlled by the control module 307. At this time, a control program is written in the control module 307 in advance, and the control module 307 starts the operation according to the negative pressure detection signal generated by the suction action performed by the user detected by the negative pressure detector 303, calculates the time length required for the plunger 42 to complete one stroke motion according to the four-stroke pumping operation of the plunger 42 in the pumping channel 133, the torque output by the driving device 20, the transmission ratio of the transmission device 30, and the like, and controls the sequence of opening the three electrically controlled valves in sequence according to the time length.

The electronic cigarette according to the second embodiment has the same structure as the electronic cigarette according to the first embodiment except that the structure is different from that of the electronic cigarette according to the first embodiment, and thus the description thereof is omitted.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. An electronic cigarette, comprising:

the suction nozzle (302) is connected to the shell (301), the shell (301) is provided with an installation space and a heating cavity (14) which are independent of each other, the suction nozzle (302) is communicated with the installation space and the heating cavity (14), and the shell (301) is provided with a vent hole (311) for communicating the installation space with the atmosphere;

a control module (307), the control module (307) being installed within the installation space;

the negative pressure detector (303), the negative pressure detector (303) is installed in the installation space, and the negative pressure detector (303) is electrically connected with the control module (307);

a heating device (305), wherein the heating device (305) is installed in the heating cavity (14), and the heating device (305) is electrically connected with the control module (307);

the gas-liquid mixing mechanism (200) is installed in the installation space, and the gas-liquid mixing mechanism (200) is controlled by the control module (307) to work and convey quantitative tobacco tar or quantitative air to the heating cavity (14).

2. The electronic cigarette of claim 1,

the gas-liquid mixing mechanism (200) includes:

a fitting housing (10), wherein a first channel (131), a second channel (132), a pumping channel (133) and an output channel (134) are formed on the fitting housing (10), one end of each of the first channel (131), the second channel (132) and the output channel (134) is communicated with the pumping channel (133), the other end of the second channel (132) is communicated with the installation space, and the other end of the output channel (134) is communicated with the heating cavity (14);

the liquid storage bin (100), the liquid storage bin (100) is communicated with the other end of the first channel (131);

a pumping device (40), wherein the pumping device (40) is arranged on the pumping channel (133), and the pumping device (40) is used for enabling the pumping channel (133) to form negative suction pressure or positive suction pressure;

a first opening and closing device (50), wherein the first opening and closing device (50) is installed on the first channel (131), and the first opening and closing device (50) is used for communicating or closing the first channel (131);

a second opening and closing device (60), wherein the second opening and closing device (60) is installed on the second channel (132), and the second opening and closing device (60) is used for communicating or closing the second channel (132);

the driving device (20), the driving device (20) is connected with the pumping device (40) through a transmission device (30) to output power, and the driving device (20) is electrically connected with the control module (307);

a check valve installed to the output passage (134), the check valve being for communicating or closing the output passage (134);

wherein the output channel (134), the first channel (131) and the second channel (132) are alternatively communicated according to a preset sequence.

3. The electronic cigarette of claim 2,

pumping device (40) include first drive end and connect in plunger (42) of first drive end, transmission (30) with first drive end is connected, drive arrangement (20) pass through transmission (30) drive first drive end motion, so that first drive end drives plunger (42) reciprocating motion in pumping passageway (133).

4. The electronic cigarette of claim 3,

the first transmission end comprises a gear portion (411) and a cam portion (412), the rotation axes of the gear portion (411) and the cam portion (412) are coaxial and rotate synchronously, the transmission device (30) is a transmission gear set, the gear portion (411) is meshed with an output gear of the transmission gear set, a transmission groove (421) is formed in the end portion, facing the transmission device (30), of the plunger (42), the cam portion (412) is assembled in the transmission groove (421), and the cam portion (412) drives the plunger (42) to reciprocate in the pumping channel (133).

5. The electronic cigarette according to any one of claims 2 to 4,

the first opening and closing device (50) comprises a second transmission end and a first switch valve (522), the transmission device (30) is connected with the second transmission end, and the driving device (20) drives the second transmission end to move through the transmission device (30), so that the second transmission end drives the first switch valve (522) to be opened or closed.

6. The electronic cigarette of claim 5,

the second transmission end comprises a first meshing gear (51) and a first cam rod (521), the transmission device (30) is a transmission gear set, the first meshing gear (51) is meshed with an output gear of the transmission gear set, the first end of the first cam rod (521) is fixedly connected with the first meshing gear (51), the first cam rod (521) is coaxial with the rotation axis of the first meshing gear (51), the first switch valve (522) is installed in the first channel (131), and the cam-shaped circumferential side wall of the second end of the first cam rod (521) abuts against the first switch valve (522) to drive the first switch valve (522) to be communicated or close the first channel (131).

7. The electronic cigarette according to any one of claims 2 to 4,

the second opening and closing device (60) comprises a third transmission end and a second switch valve (622), the transmission device (30) is connected with the third transmission end, and the driving device (20) drives the third transmission end to move through the transmission device (30), so that the third transmission end drives the second switch valve (622) to be opened or closed.

8. The electronic cigarette of claim 7,

the third transmission end comprises a second meshing gear (61) and a second cam rod (621), the transmission device (30) is a transmission gear set, the second meshing gear (61) is meshed with an output gear of the transmission gear set, the first end of the second cam rod (621) is fixedly connected with the second meshing gear (61), the second cam rod (621) is coaxial with the rotating axis of the second meshing gear (61), the second switch valve (622) is installed in the second channel (132), and the cam-shaped circumferential side wall of the second end of the second cam rod (621) abuts against the second switch valve (622) to drive the second switch valve (622) to be communicated or closed to the second channel (132).

9. The electronic cigarette according to any one of claims 2 to 4,

the gas-liquid mixing mechanism (200) further comprises a membrane valve structure (70), the membrane valve structure (70) is assembled in the assembly shell (10), the membrane valve structure (70) comprises a frame body (71), a first membrane (72), a second membrane (73) and a third membrane (74), the first membrane (72), the second membrane (73) and the third membrane (74) are all connected to the frame body (71), the first membrane (72) is the one-way valve, the second membrane (73) corresponds to the first channel (131) to communicate or close the first channel (131) and the pumping channel (133), and the third membrane (74) corresponds to the second channel (132) to communicate or close the second channel (132) and the pumping channel (133).

10. The electronic cigarette according to any one of claims 2 to 4,

the first opening and closing device (50) and the second opening and closing device (60) are both electromagnetic control valves, and the first opening and closing device (50) and the second opening and closing device (60) are both electrically connected with the control module (307).

11. The electronic cigarette of claim 10,

the one-way valve is also an electromagnetic control valve and is electrically connected with the control module (307).

12. The electronic cigarette of claim 2,

the electronic cigarette further comprises an atomizing nozzle mounted at an output port of the output channel (134), the atomizing nozzle being located within the heating chamber (14), the atomizing nozzle facing the heating device (305).