Split electromagnetic induction switch device for electronic cigarette and electronic cigarette

Abstract

The present invention discloses a split-type electromagnetic induction switch device for an electronic cigarette. The electronic cigarette includes a body and a cigarette cartridge connected to the body. The body is provided with a main control board with a built-in MCU. The cigarette cartridge is provided with a smoking port and an airway connected to the smoking port. The split-type electromagnetic induction switch device includes a magnetic field sensor provided on the body and electrically connected to the main control board, and an elastic membrane provided on the cigarette cartridge and opposite to the magnetic field sensor. The elastic membrane is suspended and connected to the airway. The elastic membrane is provided with a magnetic member that can move toward or away from the magnetic field sensor. The split-type electromagnetic induction switch device for an electronic cigarette of the present invention is not affected by oil leakage, is not easily damaged, has a long service life, and is relatively versatile. In addition, the present invention also discloses an electronic cigarette.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic cigarettes, and in particular to a split electromagnetic induction switch device for electronic cigarettes and the electronic cigarette. Background Art

[0002] E-cigarettes, as low-pressure microelectronic atomization devices, heat tobacco-flavored liquid and atomize it into aerosol for smokers to consume. Due to their health benefits over traditional cigarettes, e-cigarettes are gradually replacing traditional cigarettes and becoming the choice of more and more people who pursue health and fashion.

[0003] There are many types of e-cigarettes. Currently, e-cigarettes on the market are generally assembled by docking a cigarette cartridge and a body, and a microphone switch is installed in the body. The electronic cigarette uses the microphone switch to sense the airflow generated in the airway when the user inhales and activates the atomizer in the cigarette cartridge, thereby heating the e-liquid to generate inhalable smoke.

[0004] However, since the cigarette cartridge atomizer and the microphone switch share the same airway, when the e-cigarette oil leaks, it is easy to cause the risk of corrosion or damage to the microphone switch, affecting its service life; in addition, the microphone switch used in the e-cigarette can only achieve basic switching functions and has a single function, which is not in line with the future development trend of e-cigarettes. Summary of the Invention

[0005] The main purpose of the present invention is to propose a split electromagnetic induction switch device for electronic cigarettes, aiming to solve the technical problems that current electronic cigarettes use microphone switches as their main control components, which are prone to oil leakage, damage, and single function.

[0006] To achieve the above-mentioned objectives, the present invention proposes a split electromagnetic induction switch device for an electronic cigarette, wherein the electronic cigarette includes a body and a cigarette cartridge connected to the body, the body is provided with a main control board with a built-in MCU, the cigarette cartridge is provided with a smoking port and an air duct connected to the smoking port, wherein the split electromagnetic induction switch device includes a magnetic field sensor provided on the body and electrically connected to the main control board, and an elastic membrane provided on the cigarette cartridge and opposite to the magnetic field sensor, the elastic membrane is suspended and connected to the air duct, and the elastic membrane is provided with a magnetic part that can move toward or away from the magnetic field sensor.

[0007] Preferably, the split electromagnetic induction switch device further includes an elastic membrane fixing frame, the bottom of the cigarette cartridge is provided with a mounting cavity adapted to the elastic membrane fixing frame, and the bottom of the mounting cavity is provided with a through hole for connecting the mounting cavity with the airway.

[0008] The present invention also proposes an electronic cigarette, which includes a body and a cartridge connected to the body, the body is provided with a main control board with a built-in MCU, the cartridge is provided with a smoking port and an air duct connected to the smoking port, wherein the electronic cigarette also includes the split electromagnetic induction switch device for electronic cigarettes described above; the split electromagnetic induction switch device includes a magnetic field sensor provided on the body and electrically connected to the main control board, and an elastic membrane provided on the cartridge and opposite to the magnetic field sensor, the elastic membrane is suspended and connected to the air duct, and the elastic membrane is provided with a magnetic part that can move toward or away from the magnetic field sensor.

[0009] Preferably, a concave cavity is provided at the bottom of the cigarette cartridge, and a convex portion for inserting and fitting with the concave cavity is correspondingly provided at the top of the body.

[0010] Preferably, the bottom of the concave cavity is provided with a cigarette cartridge air inlet hole connected to the airway, the convex portion is provided with an air through hole connected to the cigarette cartridge air inlet hole, and the body is provided with a body air inlet hole connected to the air through hole.

[0011] Preferably, a magnetic attraction component is provided between the bottom of the cigarette cartridge and the top of the body.

[0012] Preferably, the cigarette cartridge is further provided with an atomizer, the body is further provided with a battery electrically connected to the main control board, and an electrode assembly electrically connected to the atomizer and the main control board is provided;

[0013] The electrode assembly includes a first electrode located at the bottom of the cigarette cartridge and electrically connected to the atomizer, and a second electrode located at the top of the body and electrically connected to the main control board, and the first electrode is in relative contact with the second electrode.

[0014] Preferably, a smoke outlet pipe and an oil tank arranged around the smoke outlet pipe are provided in the cigarette cartridge, and the atomizer includes oil-conducting cotton arranged on both sides of the smoke outlet pipe and extending into the oil tank, and a heating wire wrapped around the oil-conducting cotton and located in the smoke outlet pipe, and the heating wire is electrically connected to the first electrode.

[0015] Preferably, the body is further provided with an indicator light and / or a vibration motor electrically connected to the main control board.

[0016] Preferably, the body is also provided with a charging interface and / or a charging electrode adapted to the charging box, and the charging interface and the charging electrode are electrically connected to the main control board.

[0017] Compared with the prior art, the technical solution of the embodiment of the present invention has the following beneficial effects:

[0018] This split-type electromagnetic induction switch device for an electronic cigarette serves as the main control component of the electronic cigarette and is installed in its airway. When a user uses the electronic cigarette, the air pressure change in the airway caused by smoking causes the elastic membrane to elastically displace the magnetic element (i.e., the magnetic field position changes). The magnetic field sensor senses the magnetic field change and sends an electrical signal to the main control board, activating the electronic cigarette. If the electronic cigarette leaks, the liquid is likely to leak only along the airway to the elastic membrane and magnet, without corroding or damaging components such as the magnetic field sensor. This split-type electromagnetic induction switch device for an electronic cigarette is unaffected by oil leakage, is not easily damaged, and has a long service life, thereby improving the quality and stability of the electronic cigarette product. Furthermore, magnets of different magnetic strengths can be used to represent the ID information of different cigarette cartridges. Each cartridge can be equipped with a magnet representing its ID information. After assembly with the electronic cigarette body, the magnetic field sensor senses the magnetic strength of the magnet and sends a corresponding electrical signal to the main control board. The main control board's MCU uses this electrical signal to identify the ID information of the installed cigarette cartridge, thus providing a richer functionality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a portion of an electronic cigarette cartridge and a split electromagnetic induction switch device in one embodiment of the present invention;

[0020] Figure 2 This is a structural diagram of the body of an electronic cigarette and another part of a split electromagnetic induction switch device in one embodiment of the present invention;

[0021] Figure 3 A cross-sectional view of an electronic cigarette according to an embodiment of the present invention Figure 1 ;

[0022] Figure 4 for Figure 3 A partial enlarged view of point A in the middle;

[0023] Figure 5 This is a schematic diagram of the change from the standby state to the power-on state of the split electromagnetic induction switch device of the electronic cigarette in one embodiment of the present invention;

[0024] Figure 6 A cross-sectional view of an electronic cigarette according to an embodiment of the present invention Figure 2 . DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings to clearly and completely describe the solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0026] The present invention proposes a split electromagnetic induction switch device 10 for an electronic cigarette 100, referring to Figures 1 to 4 The electronic cigarette 100 includes a body 110 and a cigarette cartridge 120 connected to the body 110. The body 110 is provided with a main control board 111 with a built-in MCU. The cigarette cartridge 120 is provided with a smoking port 121 and an airway 1 connected to the smoking port 121. The split electromagnetic induction switch device 10 includes a magnetic field sensor 11 provided on the body 110 and electrically connected to the main control board 111, and an elastic membrane 12 provided on the cigarette cartridge 120 and opposite to the magnetic field sensor 11. The elastic membrane 12 is suspended and connected to the airway 1. The elastic membrane 12 is provided with a magnetic part 13 that can move toward or away from the magnetic field sensor 11.

[0027] This embodiment provides a split-type electromagnetic induction switch device 10 for an electronic cigarette 100. The electronic cigarette 100 is primarily an electronic product used to generate smoke for inhalation. The split-type electromagnetic induction switch device 10 serves as the main control component of the electronic cigarette 100, enabling on / off control of the electronic cigarette 100.

[0028] Specifically, refer to Figure 3 The electronic cigarette 100 includes a body 110 and a cigarette cartridge 120. The cigarette cartridge 120 generally includes a cigarette cartridge shell and an atomizer device, an oil tank, and other structures disposed within the cigarette cartridge shell. The cigarette cartridge shell is internally constructed with an airway 1, which is connected to a smoking port 121. In addition to the main control board 111, the body 110 is usually also equipped with a power supply device. The power supply device and the atomizer device are both electrically connected to the main control board 111. Under the control of the main control board 111, the power supply device can supply power to the atomizer device, so that the atomizer device heats the oil to generate smoke. Among them, the cigarette cartridge 120 can be connected to the body 110 in a variety of ways, such as magnetic connection, snap connection, etc., according to actual conditions.

[0029] Reference Figure 1 、 Figure 2 and Figure 4 The split electromagnetic induction switch device 10 includes a magnetic field sensor 11, an elastic membrane 12, and a magnetic part 13. The elastic membrane 12 and the magnetic part 13 are arranged on the cigarette cartridge 120, and the magnetic field sensor 11 is arranged on the fuselage 110. When the cigarette cartridge 120 and the fuselage 110 are assembled, the elastic membrane 12 and the magnetic part 13 are positioned relative to the magnetic field sensor 11 in the upper and lower positions. Among them, the magnetic field sensor 11 can be a Hall sensor, and is connected to the main control board 111 by setting a PCB board 14, and the magnetic part 13 is a magnet. It is easy to understand that, with reference to Figure 5When the user inhales at the smoking port 121 of the cigarette cartridge 120, negative pressure is generated in the airway 1, and the elastic membrane 12 will drive the magnetic part 13 to move upward to move away from the magnetic field sensor 11; and when the user finishes inhaling, the elastic membrane 12 will automatically drive the magnetic part 13 to move downward to move closer to the magnetic field sensor 11 through its elastic recovery force.

[0030] The operating principle of the split-type electromagnetic induction switch device 10 for the electronic cigarette 100 is as follows: When a user uses the electronic cigarette 100, the air pressure change in the air path caused by smoking causes the elastic membrane 12 to elastically displace the magnetic element 13 (i.e., the magnetic field position changes). The magnetic field sensor 11 senses the magnetic field change and sends an electrical signal to the main control board 111, thereby activating the electronic cigarette 100. Furthermore, when the user uses different suction forces, the elastic membrane 12 and the magnetic element 13 are displaced differently (i.e., the magnetic field position changes differently). The magnetic field sensor 11 sends corresponding electrical signals to the main control board 111 based on the sensed magnetic field position changes. The electronic cigarette 100 accordingly outputs different heating powers and produces different amounts and concentrations of smoke, thereby providing the user with a better user experience.

[0031] Based on the contents of this embodiment, it is easy to understand that when oil leakage occurs inside the electronic cigarette 100, the oil may only leak along the airway 1 to the elastic membrane 12 and the magnetic component 13, and will not corrode and damage components such as the magnetic field sensor 11. That is, the split electromagnetic induction switch device 10 used in the electronic cigarette 100 is not affected by oil leakage, is not easily damaged, has a long service life, and can improve the quality stability of the electronic cigarette 100 product.

[0032] In addition, magnetic members 13 of different magnetic strengths can be used to represent the ID information of different cigarette cartridges 120. The cigarette cartridges 120 can be equipped with magnetic members 13 representing their ID information. After being assembled with the body 110, the magnetic strength of the magnetic member 13 is sensed by the magnetic field sensor 11 and a corresponding electrical signal is sent to the main control board 111. The MCU of the main control board 111 identifies the ID information of the assembled cigarette cartridge 120 based on the electrical signal, thus providing more functions. The cigarette cartridge 120 ID information involved may include multiple types, such as the smoking flavor of the cigarette cartridge 120. After obtaining the smoking flavor of the cigarette cartridge 120, the electronic cigarette 100 can output the corresponding heating power to ensure the smoking taste.

[0033] In a preferred embodiment, referring to Figure 1 and Figure 4The split-type electromagnetic induction switch device 10 also includes an elastic membrane fixing frame 15. The bottom of the cigarette cartridge 120 is provided with a mounting cavity 122 that is compatible with the elastic membrane fixing frame 15. The bottom of the mounting cavity 122 is provided with a through hole 123 for connecting the mounting cavity 122 with the airway 1. In this embodiment, the elastic membrane 12 is fixed to one end of the elastic membrane fixing frame 15 and the magnetic member 13 is located inside the elastic membrane fixing frame 13. When the elastic membrane fixing frame 15 is inserted into the mounting cavity 122 of the cigarette cartridge 120, the opening of the mounting cavity 122 is covered by the elastic membrane 12 on the elastic membrane fixing frame 15. Furthermore, ventilation between the mounting cavity 122 and the airway 1 is achieved through the provided through hole 123, and the elastic membrane 12 and the magnetic member 13 can be moved when the user inhales. Among them, the elastic membrane 12 and the magnetic member 13 are installed on the cigarette cartridge 120 through the elastic membrane fixing frame 15, which is simple to disassemble and replace.

[0034] The present invention also provides an electronic cigarette 100, referring to Figures 1 to 4 The electronic cigarette 100 includes a body 110 and a cigarette cartridge 120 connected to the body 110. The body 110 is provided with a main control board 111 with a built-in MCU. The cigarette cartridge 120 is provided with a smoking port 121 and an airway 1 connected to the smoking port 121. The electronic cigarette 100 also includes a split electromagnetic induction switch device 10 for the electronic cigarette 100 described in the aforementioned embodiment; the split electromagnetic induction switch device 10 includes a magnetic field sensor 11 provided on the body 110 and electrically connected to the main control board 111, and an elastic membrane 12 provided on the cigarette cartridge 120 and opposite to the magnetic field sensor 11. The elastic membrane 12 is suspended and connected to the airway 1. The elastic membrane 12 is provided with a magnetic part 13 that can move toward or away from the magnetic field sensor 11 as it moves. The specific structure of the split electromagnetic induction switch device 10 for the electronic cigarette 100 refers to the above embodiment. Since the electronic cigarette 100 adopts all the technical solutions of all the above embodiments, it has at least all the technical effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0035] In a preferred embodiment, referring to Figure 1 、 Figure 2 and Figure 4 , a concave cavity 124 is provided at the bottom of the cigarette cartridge 120, and a convex portion 112 is correspondingly provided at the top of the fuselage 110 for plug-in cooperation with the concave cavity 124. Specifically, when the cigarette cartridge 120 is assembled with the fuselage 110, the concave cavity 124 at the bottom of the cigarette cartridge 120 and the convex portion 112 at the top of the fuselage 110 are correspondingly plugged in for assembly and positioning, which can speed up the assembly speed and further enhance the user experience. Among them, the shapes of the concave cavity 124 and the convex portion 112 can be various, and the number can be multiple, which can be set according to actual conditions. As a preferred design, the concave cavity 124 and the convex portion 112 are both symmetrically arranged on the left and right.

[0036] Further, refer to Figure 1 、 Figure 2 and Figure 4 The bottom of the concave cavity 124 is provided with a cartridge air inlet 125 connected to the air duct 1, the convex portion 112 is provided with an air hole 113 that is connected to the cartridge air inlet 125, and the body 110 is provided with a body air inlet 114 that is connected to the air hole 113. Specifically, the body air inlet 114, the air hole 113, and the cartridge air inlet 125 are connected in sequence and finally connected to the air duct 1 in the cartridge 120, forming a complete air path. It is easy to understand that when the user inhales at the mouthpiece 121 of the cartridge 120, the external air enters the body 110 from the body air inlet 114, and enters the air duct 1 through the air hole 113 and the cartridge air inlet 125.

[0037] In a preferred embodiment, referring to Figure 1 and Figure 2 A magnetic assembly 20 is provided between the bottom of the cartridge 120 and the top of the body 110. The magnetic assembly 20 is used to magnetically connect the cartridge 120 and the body 110, thereby facilitating assembly and disassembly of the cartridge 120 and the body 110. The magnetic assembly 20 may include a first magnet and a second magnet or a magnetic metal piece, and the first magnet and the second magnet or the magnetic metal piece may be respectively provided at the bottom of the cartridge 120 and the top of the body 110, according to actual conditions.

[0038] In a preferred embodiment, referring to Figure 1 、 Figure 2 and Figure 6 The cigarette cartridge 120 is further provided with an atomizer 126 , the body 110 is further provided with a battery 115 electrically connected to the main control board 111 , and an electrode assembly 30 electrically connected between the atomizer 126 and the main control board 111 is provided;

[0039] The electrode assembly 30 includes a first electrode 31 located at the bottom of the cigarette cartridge 120 and electrically connected to the atomizer 126 , and a second electrode 32 located at the top of the body 110 and electrically connected to the main control board 111 . The first electrode 31 and the second electrode 32 are in contact with each other.

[0040] In this embodiment, after the cigarette cartridge 120 is assembled with the body 110, the first electrode 31 at the bottom of the cigarette cartridge 120 and the second electrode 32 at the bottom of the body 110 are in contact with each other. The battery 115 on the body 110 is used to power the main control board 111. When the split electromagnetic induction switch device 10 is triggered and activated, it sends an electrical signal to the main control board 111. The main control board 111 energizes the atomizer 126 through the electrode assembly 30, and the atomizer 126 operates to heat the e-liquid.

[0041] Further, refer to Figure 6The smoke cartridge 120 is provided with a smoke outlet pipe 127 and an oil tank 128 arranged around the smoke outlet pipe 127. The atomizer 126 includes oil-conducting cotton 126a arranged on both sides of the smoke outlet pipe 127 and extending into the oil tank 128, and a heating wire 126b wrapped around the oil-conducting cotton 126a and located within the smoke outlet pipe 127. The heating wire 126b is electrically connected to the first electrode 31. Specifically, the atomizer 126 is composed of the oil-conducting cotton 126a and the heating wire 126b. The oil-conducting cotton 126a guides the smoke oil from the oil tank 128. The heating wire 126b conducts electricity through the first electrode 31 to heat the smoke oil on the oil-conducting cotton 126a, thereby generating smoke in the smoke outlet pipe 127, and achieving excellent atomization performance. As a preferred design, the oil tank 128 can be provided with a corresponding oil storage cotton to store the smoke oil.

[0042] In a preferred embodiment, referring to Figure 6 , the body 110 is also provided with an indicator light (not shown in the figure) and / or a vibration motor 116 electrically connected to the main control board 111. In this embodiment, the indicator light and / or the vibration motor 116 are used for prompting purposes. For example, when the electrode assembly 30 provided between the atomizer 126 and the main control board 111 forms a connection or an abnormal situation such as a poor connection occurs, the vibration motor 116 will vibrate to prompt; for example, when the electrode assembly 30 provided between the atomizer 126 and the main control board 111 forms a connection or when inhalation triggers the split-type electromagnetic induction switch device 10 to work, the indicator light will light up to display; for example, after the cigarette cartridge 120 is assembled with the body 110, when the magnetic field sensor 11 on the body 110 senses the magnetic field position of the magnetic part 13 on the cigarette cartridge 120, the indicator light will light up to display and / or the vibration motor 116 will vibrate to prompt.

[0043] In a preferred embodiment, referring to Figure 6 , the body 110 is also provided with a charging interface 117 and / or charging electrodes adapted to the charging box, and the charging interface 117 and the charging electrodes are electrically connected to the main control board 111. Specifically, the charging interface 117 and the charging electrodes are provided at the bottom of the body 110, and the charging electrodes can be two arranged at intervals and respectively located on the left and right sides of the charging interface. That is, the electronic cigarette 100 can have two charging modes or any one of the two charging modes, one is that the charging interface 117 is connected to the charger, and the charger is charged by plugging it into a power source, and the other is that the electronic cigarette 100 is placed on the charging box, which has its own battery, so that its charging electrodes are connected to the charging box for charging. Among them, the charging interface 117 can be a Type-C interface or a micro USB interface, and as a preferred design, the charging interface 117 can be set as a magnetic charging interface.

[0044] The above description is only a partial or preferred embodiment of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. Any equivalent structural transformation made by using the contents of the present invention specification and drawings under the overall concept of the present invention, or direct / indirect application in other related technical fields, is included in the scope of protection of the present invention.

Claims

1. A split electromagnetic induction switch device for an electronic cigarette, the electronic cigarette comprising a body and a cigarette cartridge connected to the body, the body being provided with a main control board with a built-in MCU, the cigarette cartridge being provided with a smoking port and an airway connected to the smoking port, characterized in that: The split-type electromagnetic induction switch device includes a magnetic field sensor provided on the body and electrically connected to the main control board, and an elastic membrane provided on the cigarette cartridge and opposite to the magnetic field sensor. The elastic membrane is suspended and communicates with the airway. The elastic membrane is provided with a magnetic member that can move toward or away from the magnetic field sensor. The magnetic strength of the magnetic member is configured to represent the ID information of the cigarette cartridge. The magnetic field sensor senses the magnetic strength of the magnetic member and sends a corresponding electrical signal to the main control board. The main control board identifies the ID information of the installed cigarette cartridge based on the electrical signal. The split electromagnetic induction switch device also includes an elastic membrane fixing frame. The bottom of the cigarette cartridge is provided with an installation cavity adapted to the elastic membrane fixing frame. The bottom of the installation cavity is provided with a through hole for connecting the installation cavity with the airway. The elastic membrane is fixed at one end of the elastic membrane fixing frame. The elastic membrane fixing frame is inserted into the installation cavity, and the elastic membrane covers the opening of the installation cavity.

2. An electronic cigarette, comprising a body and a cigarette cartridge connected to the body, wherein the body is provided with a main control board with a built-in MCU, and the cigarette cartridge is provided with a smoking port and an airway connected to the smoking port, characterized in that: The electronic cigarette further comprises the split electromagnetic induction switch device for the electronic cigarette according to claim 1.

3. The electronic cigarette according to claim 2, characterized in that The bottom of the cigarette cartridge is provided with a concave cavity, and the top of the body is correspondingly provided with a convex portion for forming an insert-fitting fit with the concave cavity.

4. The electronic cigarette according to claim 3, characterized in that The bottom of the concave cavity is provided with a cigarette cartridge air inlet hole connected to the airway, the convex portion is provided with an air through hole connected to the cigarette cartridge air inlet hole, and the body is provided with a body air inlet hole connected to the air through hole.

5. The electronic cigarette according to claim 2, characterized in that A magnetic attraction component is provided between the bottom of the cigarette cartridge and the top of the body.

6. The electronic cigarette according to claim 2, characterized in that The cigarette cartridge is further provided with an atomizer, the body is further provided with a battery electrically connected to the main control board, and an electrode assembly electrically connected to the atomizer and the main control board is provided; The electrode assembly includes a first electrode located at the bottom of the cigarette cartridge and electrically connected to the atomizer, and a second electrode located at the top of the body and electrically connected to the main control board, and the first electrode is in relative contact with the second electrode.

7. The electronic cigarette according to claim 6, characterized in that The cigarette cartridge is provided with a smoke outlet pipe and an oil tank arranged around the smoke outlet pipe. The atomizer includes oil-conducting cotton arranged on both sides of the smoke outlet pipe and extending into the oil tank, and a heating wire wrapped around the oil-conducting cotton and located in the smoke outlet pipe. The heating wire is electrically connected to the first electrode.

8. The electronic cigarette according to claim 6, characterized in that The body is also provided with an indicator light and / or a vibration motor electrically connected to the main control board.

9. The electronic cigarette according to claim 6, characterized in that The body is also provided with a charging interface and / or a charging electrode adapted to the charging box, and the charging interface and the charging electrode are electrically connected to the main control board.

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