CN219982119U

CN219982119U - Electronic cigarette

Info

Publication number: CN219982119U
Application number: CN202320807315.1U
Authority: CN
Inventors: 李晋阳; 方涛; 张睿
Original assignee: AAC Acoustic Technologies Shenzhen Co Ltd
Current assignee: AAC Technologies Holdings Shenzhen Co Ltd
Priority date: 2023-04-03
Filing date: 2023-04-03
Publication date: 2023-11-10
Anticipated expiration: 2033-04-03

Abstract

The utility model discloses an electronic cigarette, which comprises a cigarette body shell and an MEMS sensor accommodated in the cigarette body shell, wherein the MEMS sensor comprises a shell with an accommodating space, an AISC chip and an MEMS chip, wherein the AISC chip and the MEMS chip are accommodated in the accommodating space and are mutually and electrically connected; the shell is provided with a first sound hole and a second sound hole which penetrate through the shell and communicate the accommodating space with the outside; the MEMS sensor further includes a first waterproof and breathable membrane secured to the housing and completely covering the first acoustic aperture, and a second waterproof and breathable membrane secured to the housing and completely covering the second acoustic aperture. According to the MEMS sensor of the electronic cigarette, impurities such as water, oil, dust, aerosol and the like can be intercepted by the first waterproof breathable film and the second waterproof breathable film, so that the impurities can be prevented from entering the MEMS chip from the first sound hole and the second sound hole, and the performance of the MEMS chip is reduced or damaged.

Description

Electronic cigarette

[ field of technology ]

The utility model relates to the technical field of sensors, in particular to an electronic cigarette.

[ background Art ]

With the rapid development of the technology of acoustic-electric conversion, the application of speakers and microphones is also gradually applied to various industries, such as communication equipment, household acoustic control appliances, entertainment equipment, and the like.

The microphone is a transducer for converting sound airflow or vibration frequency into an electronic signal, and the microphone or the MEMS sensor formed based on the MEMS chip has been widely used because of the advantages of small size, light weight, low cost, low power consumption, high reliability, easy integration, and the like.

The MEMS sensor is applied to the electronic cigarette in a conventional application mode, and particularly, the MEMS sensor is arranged on the cigarette body shell so that the electronic cigarette can sense vibration change of airflow to make corresponding behaviors.

The MEMS sensor of the electronic cigarette in the related art mainly comprises a shell with an accommodating space, and an AISC chip and an MEMS chip which are accommodated in the shell and are mutually connected, wherein the shell is provided with an acoustic hole or an airflow hole penetrating through the shell.

Although the MEMS sensor of the electronic cigarette in the related art can transmit the airflow signal to the MEMS chip through the sound hole to cause the vibration of the diaphragm in the MEMS chip, so as to realize the conversion between the airflow signal and the electronic signal, because the sound hole penetrates through the housing, impurities such as water, oil, dust, aerosol and the like can enter the MEMS chip from the sound hole, and the performance of the MEMS chip is reduced or damaged.

Accordingly, it is necessary to provide an electronic cigarette with a novel MEMS sensor to solve the above-mentioned problems.

[ utility model ]

The utility model aims to solve the technical problem of how to provide an electronic cigarette with a novel MEMS sensor, so as to solve the problem that impurities can enter an MEMS chip from an acoustic hole due to the fact that the acoustic hole penetrates through a shell in the MEMS sensor of the electronic cigarette in the related art, and the performance of the MEMS chip is reduced or damaged.

In order to solve the technical problems, the utility model provides an electronic cigarette, which comprises a cigarette body shell and an MEMS sensor accommodated in the cigarette body shell, wherein the MEMS sensor comprises a shell with an accommodating space, an AISC chip and an MEMS chip, wherein the AISC chip and the MEMS chip are accommodated in the accommodating space and are electrically connected with each other; the shell is provided with a first sound hole and a second sound hole which penetrate through the shell and communicate the accommodating space with the outside; the MEMS sensor further includes a first waterproof and breathable membrane secured to the housing and completely covering the first acoustic aperture, and a second waterproof and breathable membrane secured to the housing and completely covering the second acoustic aperture.

Preferably, the first waterproof and breathable film is fixed to the inner side of the outer case.

Preferably, the second sound hole and the first sound hole are respectively arranged at two opposite sides of the shell, and the second sound hole is opposite to the back cavity.

Preferably, the second waterproof and breathable film is fixed to the inner side of the outer case.

Preferably, the AISC chip includes a plurality of and is connected to the MEMS chip, respectively.

Preferably, the housing includes a circuit board and an upper cover covering the circuit board and enclosing the circuit board together to form the accommodating space; the AISC chip is fixed on the circuit board and is electrically connected with the circuit board, and the MEMS chip is fixed on the circuit board and is electrically connected with the circuit board; the first sound hole is arranged on the upper cover, and the second sound hole is arranged on the circuit board.

Preferably, the upper cover and the circuit board enclose the rectangular accommodating space.

Preferably, the AISC chip is electrically connected with the circuit board through a connecting wire; and the MEMS chip is electrically connected with the AISC chip and the circuit board through connecting wires.

Compared with the related art, the MEMS sensor in the electronic cigarette has the advantages that the first waterproof breathable film is arranged at the position of the first sound hole, and the second waterproof breathable film is arranged at the position of the second sound hole, so that impurities such as water, oil, dust and aerosol can be intercepted by the first waterproof breathable film and the second waterproof breathable film, and the impurities can be prevented from entering the MEMS chip from the first sound hole and the second sound hole, and the performance of the MEMS chip is reduced or damaged.

[ description of the drawings ]

For a clearer description of the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:

fig. 1 is a schematic structural diagram of an electronic cigarette according to an embodiment of the present utility model;

fig. 2 is a cross-sectional view of a MEMS sensor in an electronic cigarette according to an embodiment of the present utility model.

In the figure, 100, a MEMS sensor; 1. a housing; 11. a first acoustic port; 12. a second sound hole; 13. a circuit board; 131. a line; 14. an upper cover; 2. AISC chip; 3. a MEMS chip; 31. a back cavity; 4. a first waterproof breathable film; 5. a second waterproof breathable film; 6. a connecting wire; 10. an accommodating space; 200. an electronic cigarette; 201. a cigarette body shell.

[ detailed description ] of the utility model

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The embodiment of the utility model provides an electronic cigarette 200, which is shown in fig. 1 to 2, and comprises a cigarette body shell 201 and a MEMS sensor 100 accommodated in the cigarette body shell 201, wherein the MEMS sensor 100 comprises a shell 1 with an accommodating space 10, an AISC chip 2 accommodated in the accommodating space 10 and electrically connected with each other, and a MEMS chip 3 with a back cavity 31; the housing 1 is provided with a first sound hole 11 penetrating therethrough and communicating the accommodation space 10 with the outside; the MEMS sensor 100 further comprises a first waterproof breathable membrane 4 fixed to the housing 1 and completely covering the first acoustic aperture 11.

Wherein the MEMS chip 3 is a capacitive MEMS chip 3; the AISC chips 2 may be one or more, and when the AISC chips 2 are plural, the plurality of AISC chips 2 are disposed at intervals and electrically connected with the MEMS chips 3, respectively. In this embodiment, the AISC chip 2 is one.

In this embodiment, the housing 1 includes a circuit board 13 (PCB board) and an upper cover 14 covering the circuit board 13 and enclosing the circuit board 13 together to form an accommodating space 10; the AISC chip 2 is fixed on the circuit board 13 and is electrically connected with the circuit 131 of the circuit board 13, and the MEMS chip 3 is fixed on the circuit board 13 and is electrically connected with the circuit 131 of the circuit board 13; specifically, the upper cover 14 is made of a metal material; the first sound hole 11 is provided in the upper cover 14.

In this embodiment, the upper cover 14 and the circuit board 13 together enclose a rectangular accommodating space 10. When heating, the accommodating space 10 formed by the upper cover 14 and the circuit board 13 can be designed into other shapes, such as ellipse, trapezoid, etc., according to practical requirements.

In this embodiment, the first waterproof breathable film 4 is fixed to the inner side of the housing 1; specifically, the first waterproof breathable film 4 is fixed to the inner side of the upper cover 14; the outer side of the shell 1 is the side of the shell 1 far away from the accommodating space 10, and the inner side of the shell 1 is the side of the shell 1 near the accommodating space 10; the outer side of the upper cover 14 is the side of the upper cover 14 away from the accommodating space 10, and the inner side of the upper cover 14 is the side of the upper cover 14 close to the accommodating space 10.

In this embodiment, the AISC chip 2 is electrically connected to the circuit 131 of the circuit board 13 through the connection wire 6; the MEMS chip 3 is electrically connected with the AISC chip 2 and the circuit 131 of the circuit board 13 respectively through the connecting wire 6; namely, electrical connection or communication connection is formed between the AISC chip 2 and the circuit 131 of the circuit board 13, and between the MEMS chip 3 and the AISC chip 2.

In addition, in the present embodiment, the housing 1 is further provided with a second sound hole 12 penetrating therethrough and communicating the accommodating space 10 with the outside, the second sound hole 12 and the first sound hole 11 are respectively disposed on opposite sides of the housing 1, and the second sound hole 12 is disposed opposite to the back cavity 31; the MEMS sensor 100 further comprises a second waterproof breathable membrane 5 fixed to the housing 1 and completely covering the second sound hole 12; specifically, the second sound hole 12 is provided to the circuit board 13 of the housing 1.

Wherein the second acoustic port 12 and the first acoustic port 11 are each for communicating an airflow signal through the housing 1 to the MEMS chip 3; the second waterproof and breathable film 5 and the first waterproof and breathable film 4 are used for penetrating air flow and intercepting impurities such as water, oil and dust, and are made of novel high-polymer waterproof materials.

The second waterproof and breathable film 5 is fixed on the inner side of the shell 1; specifically, the second waterproof breathable film 5 is fixed to the inside of the circuit board 13; the side of the circuit board 13 far away from the accommodating space 10 is the outer side, and the side of the circuit board 13 near the accommodating space 10 is the inner side; when the second waterproof and breathable film 15 is fixed to the inner side of the circuit board 13, that is, the second waterproof and breathable film 5 is fixed between the MEMS chip 3 and the circuit board 13.

The acoustic-electric conversion process of the MEMS sensor 100 in this embodiment is: the air flow signal is transmitted through the first waterproof and breathable film 4 by the first sound hole 11 or/and the second waterproof and breathable film 5 by the second sound hole 12 to enter the accommodating space 10 so as to cause the vibrating diaphragm of the MEMS chip 3 to vibrate, thereby realizing the conversion of the air flow signal and the electronic signal.

Compared with the related art, in the electronic cigarette 200 of the present embodiment, the MEMS sensor 100 is provided with the first waterproof and breathable film 4 at the position of the first acoustic hole 11, so that impurities such as water, oil, dust and aerosol can be intercepted by the first waterproof and breathable film 4, so as to avoid that the impurities enter the MEMS chip 3 from the first acoustic hole 11, and the performance of the MEMS chip 3 is reduced or damaged. In addition, the second sound hole 12 can also intercept impurities such as water, oil, dust and aerosol through the second waterproof and breathable film 5, so as to avoid the impurities from entering the MEMS chip 3 from the second sound hole 12, and the performance of the MEMS chip 3 is reduced or damaged.

While the utility model has been described with respect to the above embodiments, it should be noted that modifications can be made by those skilled in the art without departing from the inventive concept, and these are all within the scope of the utility model.

Claims

1. The electronic cigarette comprises a cigarette body shell and an MEMS sensor accommodated in the cigarette body shell, and is characterized in that the MEMS sensor comprises a shell with an accommodating space, an AISC chip and an MEMS chip, wherein the AISC chip and the MEMS chip are accommodated in the accommodating space and are electrically connected with each other; the shell is provided with a first sound hole and a second sound hole which penetrate through the shell and communicate the accommodating space with the outside; the MEMS sensor is characterized by further comprising a first waterproof and breathable film which is fixed on the shell and completely covers the first sound hole, and a second waterproof and breathable film which is fixed on the shell and completely covers the second sound hole; the second waterproof and breathable film is fixed to the inner side of the housing and located between the MEMS chip and the housing.

2. The electronic cigarette of claim 1, wherein the first waterproof and breathable film is secured to an inside of the housing.

3. The electronic cigarette of claim 1, wherein the second sound hole and the first sound hole are disposed on opposite sides of the housing, respectively, and the second sound hole is disposed opposite the back cavity.

4. The electronic cigarette of claim 1, wherein the AISC chip comprises a plurality of and is connected to the MEMS chip, respectively.

5. The electronic cigarette of claim 1, wherein the housing comprises a circuit board and an upper cover covering the circuit board and enclosing the circuit board together to form the accommodating space; the AISC chip is fixed on the circuit board and is electrically connected with the circuit board, and the MEMS chip is fixed on the circuit board and is electrically connected with the circuit board; the first sound hole is formed in the upper cover, and the second sound hole is formed in the circuit board.

6. The electronic cigarette of claim 5, wherein the upper cover and the circuit board together enclose the rectangular receiving space.

7. The electronic cigarette of claim 5, wherein the AISC chip is electrically connected to the circuit board by a connection line; and the MEMS chip is electrically connected with the AISC chip and the circuit board respectively through connecting wires.