CN217089585U

CN217089585U - Electronic cigarette

Info

Publication number: CN217089585U
Application number: CN202123449336.0U
Authority: CN
Inventors: 李晋阳; 张睿
Original assignee: Ruisheng Kaitai Technology Wuhan Co ltd
Current assignee: Ruisheng Kaitai Technology Wuhan Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-08-02
Anticipated expiration: 2031-12-31
Also published as: US20230225396A1

Abstract

The utility model provides an electronic cigarette, which comprises a shell with a smoking port at the top end, an atomizer contained in the shell, a tobacco tar cavity arranged between the atomizer and the smoking port, a first containing cavity communicated with the smoking port and an MEMS sensor arranged in the first containing cavity, the shell is provided with a first through hole for communicating the outside and the MEMS sensor, the MEMS sensor comprises a circuit board, a first shell connected with the circuit board to form a second accommodating cavity, and an MEMS chip and an ASIC chip which are arranged in the second accommodating cavity, the MEMS sensor also comprises a second shell which covers the first shell and is connected with the circuit board, the first shell and the second shell form a third containing cavity at intervals, and a notch communicated with the first containing cavity and the third containing cavity is arranged between the second shell and the circuit board. The electronic cigarette can play a role in protecting the MEMS sensor.

Description

Electronic cigarette

[ technical field ] A method for producing a semiconductor device

The utility model relates to a sensor field especially relates to an electron cigarette.

[ background of the invention ]

At present, about 11 hundred million people smoke globally, because tobacco leaves contain nicotine, smoking has great harm to health, and with the continuous improvement of living standard, more and more people pay attention to health problems, and as a substitute of cigarettes, electronic cigarettes are popular with consumers.

The smoke in the electronic cigarette in the related art easily enters the inside of the MEMS sensor, thereby affecting the performance of the MEMS sensor.

Therefore, there is a need to provide a new electronic cigarette to solve the above technical problems.

[ Utility model ] A method for manufacturing a semiconductor device

An object of the utility model is to provide a can protect MEMS sensor's electron cigarette.

In order to achieve the above object, the present invention provides an electronic cigarette, which comprises a housing having a smoking port at a top end thereof, an atomizer contained in the housing and spaced from the smoking port, a tobacco tar cavity disposed between the atomizer and the smoking port, a first containing cavity communicated with the smoking port, and a MEMS sensor disposed in the first containing cavity, the shell is provided with a first through hole for communicating the outside and the MEMS sensor, the MEMS sensor comprises a circuit board, a first shell connected with the circuit board to form a second accommodating cavity, and an MEMS chip and an ASIC chip which are arranged in the second accommodating cavity, the MEMS sensor also comprises a second shell which covers the first shell and is connected with the circuit board, the first shell and the second shell form a third containing cavity at intervals, and a notch communicated with the first containing cavity and the third containing cavity is arranged between the second shell and the circuit board.

Preferably, the circuit board is further provided with a plurality of first golden fingers connected with the second shell, and the gaps are formed among the plurality of first golden fingers at intervals.

Preferably, the second shell is square, and the first golden finger is located at a corner of the second shell.

Preferably, the first gold finger is a copper foil.

Preferably, the second housing is a metal shell.

Preferably, the first housing is a metal shell.

Preferably, the circuit board is provided with a second golden finger connected with the first shell, and the second golden finger is of a continuous annular structure.

Preferably, the circuit board is provided with a second through hole communicated with the first through hole, and the first shell is provided with a third through hole communicated with the second accommodating cavity and the third accommodating cavity.

Preferably, the circuit board is internally provided with conductive terminals, and the ASIC chip is electrically connected with the conductive terminals.

Compared with the prior art, the utility model discloses a MEMS sensor in the electron cigarette is equipped with first shell and second shell, and breach between second shell and the circuit board not only can the air feed stream pass through, still can effectively prevent the entering of liquid tobacco tar.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

fig. 1 is a cross-sectional view of the electronic cigarette of the present invention;

figure 2 is a cross-sectional view of a MEMS sensor of the present invention;

fig. 3 is a front view of the circuit board of the MEMS sensor of the present invention.

[ detailed description ] embodiments

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Please refer to fig. 1, which is the present invention provides an electronic cigarette 100, the electronic cigarette 100 includes a housing 1 having a smoking port 11 at the top end, an atomizer 2 housed in the housing 1 and spaced from the smoking port 11, a tobacco tar chamber 3 disposed between the atomizer 2 and the smoking port 11, a first housing chamber 10 communicated with the smoking port 11, and a MEMS sensor 4 disposed in the first housing chamber 10, wherein the MEMS sensor 4 is welded and fixed in the first housing chamber 10 of the housing 1. The tobacco tar is injected into the tobacco tar cavity 3, the first accommodating cavity 10 is located at the bottom end of the shell 1 and is communicated with the smoking port 11 through a flue 13, and a first through hole 12 for communicating the outside and the MEMS sensor is further formed in the bottom end of the shell 1.

Referring to fig. 2, in order to provide the MEMS sensor 4 in the electronic cigarette according to the first embodiment of the present invention, the MEMS sensor 4 includes a circuit board 43, a first housing 41 connected to the circuit board 43 to form a second accommodating cavity 40, a MEMS chip 44 and an ASIC chip 45 disposed in the second accommodating cavity 40, and a second housing 42 covering the first housing 41 and connected to the circuit board 43, wherein the first housing 41 and the second housing 42 form a third accommodating cavity 401 at an interval. Because the third is acceptd chamber 401 and is had certain volume, can save certain tobacco tar, has effectively increased grease proofing ability. In addition, the first housing 41 and the second housing 42 may be both metal shells, and the first housing 41 and the second housing 42 increase the surface area of the housings, which is beneficial for condensing the gaseous soot and preventing the gaseous soot from entering the interior of the MEMS sensor 4.

The utility model discloses in, circuit board 43 is equipped with the second through-hole 430 of the back chamber 440 of the first through-hole 12 of intercommunication and MEMS chip 44, and first shell 41 is equipped with the intercommunication second and accepts the third through-hole 410 that chamber 40 and third accepted chamber 401, and third through-hole 410 can be one, also can be a plurality of, and third through-hole 410 is used for the circulation of gas. A gap 400 communicating the first accommodating cavity 10 and the third accommodating cavity 401 is arranged between the second shell 42 and the circuit board 43. The gap 400 is small, allowing airflow to pass through and effectively preventing liquid tobacco tar from entering.

Referring to fig. 3, the circuit board 43 is provided with a first gold finger 432 connected to the second casing 42, the second casing 42 is square, the first gold finger 432 includes a plurality of first gold fingers 432, the plurality of first gold fingers 432 form the notch 400 at intervals, and the plurality of first gold fingers 432 are respectively disposed at the corner of the second casing 42. The first gold finger 432 is preferably a copper foil. Therefore, the first gold finger 432 not only can play a role of electrically connecting the second housing 42, but also can form the notch 400 in the process of manufacturing the first gold finger 432, and the size of the notch 400 can be set according to requirements, so that the liquid smoke can be prevented from entering the MEMS sensor 4, the operation is simple, and the cost is saved. In addition, the circuit board 43 may further include a second gold finger 433 connected to the first case 41, where the second gold finger 433 has a continuous ring structure and may electrically connect the first case 41 and the internal chip of the MEMS sensor 4.

The circuit board 43 is internally provided with conductive terminals 431, and the ASIC chip 45 is electrically connected with the conductive terminals 431 through bonding gold wires 46.

The circuit board 43 may be provided with a microprocessor, or, the ASIC chip 45 is integrated with a microprocessor, the MEMS chip 44 includes a back plate 441 and a diaphragm 442 spaced from the back plate 441, when a person inhales air, the diaphragm 442 moves toward the smoke suction port 11 due to a pressure difference between pressures acting on the diaphragm 442 from the second through hole 430 and the third through hole 410, a capacitance between the back plate 441 and the diaphragm 442 changes, the ASIC chip 45 detects the change and outputs an electrical signal, and after the signal is processed, the microprocessor receives the signal and outputs a corresponding signal to drive the atomizer to operate, so as to generate smoke, and the smoke is transmitted into the oral cavity of the person along the smoke duct.

The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims

1. An electronic cigarette comprises a shell with a smoking port at the top end, an atomizer which is accommodated in the shell and is arranged at an interval with the smoking port, a tobacco tar cavity which is arranged between the atomizer and the smoking port, a first accommodating cavity which is communicated with the smoking port and an MEMS sensor which is arranged in the first accommodating cavity, the shell is provided with a first through hole for communicating the outside and the MEMS sensor, the MEMS sensor comprises a circuit board, a first shell connected with the circuit board to form a second accommodating cavity, and an MEMS chip and an ASIC chip which are arranged in the second accommodating cavity, it is characterized in that the MEMS sensor also comprises a second shell which covers the first shell and is connected with the circuit board, the first shell and the second shell form a third containing cavity at intervals, and a notch communicated with the first containing cavity and the third containing cavity is arranged between the second shell and the circuit board.

2. The electronic cigarette according to claim 1, wherein the circuit board is further provided with a plurality of first golden fingers connected with the second housing, and the gaps are formed by the plurality of first golden fingers at intervals.

3. The electronic cigarette of claim 2, wherein the second housing is square and the first gold finger is located at a corner of the second housing.

4. The electronic cigarette of claim 2, wherein the first gold finger is a copper foil.

5. The electronic cigarette of claim 1, wherein the second housing is a metal housing.

6. The electronic cigarette of claim 1, wherein the first housing is a metal housing.

7. The electronic cigarette of claim 6, wherein the circuit board is provided with a second gold finger connected to the first housing, the second gold finger being a continuous ring structure.

8. The electronic cigarette according to claim 1, wherein the circuit board is provided with a second through hole communicating with the first through hole, and the first housing is provided with a third through hole communicating with the second receiving chamber and the third receiving chamber.

9. The electronic cigarette of claim 1, wherein conductive terminals are disposed in the circuit board, and the ASIC chip is electrically connected to the conductive terminals.