CN218354584U

CN218354584U - Electronic cigarette air pressure sensor with oil-proof effect and electronic cigarette

Info

Publication number: CN218354584U
Application number: CN202221008106.2U
Authority: CN
Inventors: 黄高东; 石秀红
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2023-01-24
Anticipated expiration: 2032-04-28

Abstract

The utility model discloses an electron cigarette baroceptor and electron cigarette with grease proofing effect, include: the PCB board is provided with an air inlet hole; the air pressure sensing element and the air pressure processing chip are mounted on the mounting surface of the PCB, and the air pressure sensing element covers the air inlet; the housing, the welding is in on the installation face of PCB board, and cover chip is handled to atmospheric pressure sensing element and atmospheric pressure, the top surface of housing is equipped with the suction hole, the border position of suction hole forms the separation blade of a step form to the housing inner groovy, the suction channel of suction hole intercommunication electron cigarette the utility model discloses a set up the separation blade in the inboard of housing suction hole, the air current direction when breathing in can not get into the housing perpendicularly in, but can deflect because of the separation blade, the separation blade can directly block partial condensate or tobacco tar simultaneously, prevents that condensate or tobacco tar from directly getting into the cavity between housing and the PCB board to atmospheric pressure sensor's waterproof grease proofing ability has been improved.

Description

Electronic cigarette air pressure sensor with oil-proof effect and electronic cigarette

Technical Field

The utility model relates to an electron cigarette technical field especially relates to an electron cigarette baroceptor and electron cigarette with grease proofing effect.

Background

The electronic cigarette is usually used by atomizing cigarette liquid through an atomizer, and substances such as tar and the like harmful to human bodies are removed when the cigarette liquid is manufactured, so that the harm to human bodies is eliminated. Current electron cigarette equipment comprises battery pack, core control subassembly, atomizer subassembly and baroceptor fixed connection in proper order, and this type of electron cigarette hinders the problem of structural design itself, often behind tobacco tar atomizing work, can appear the condensate and flow back to the electron flue gas pressure sensor in, leads to the electron cigarette to start malfunctioning, and then produces the phenomenon that triggers by mistake or do not trigger.

Therefore, how to design an electronic cigarette pressure sensor capable of preventing oil and water is an urgent technical problem to be solved in the industry.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the not grease proofing technical problem of baroceptor of electron cigarette among the above-mentioned prior art, provide an electron cigarette baroceptor and electron cigarette with grease proofing effect.

The utility model adopts the technical proposal that:

the utility model provides an electron cigarette baroceptor with grease proofing effect, include:

the PCB is provided with an air inlet hole, and the air inlet hole is communicated with the outside through an air inlet channel of the electronic cigarette;

the air pressure sensing element and the air pressure processing chip are arranged on the installation surface of the PCB, and the air pressure sensing element covers the air inlet;

the cover is welded on the installation surface of the PCB and covers the air pressure sensing element and the air pressure processing chip, an air suction hole is formed in the top surface of the cover, a stepped blocking piece is formed at the edge position of the air suction hole towards an inner groove of the cover, and the air suction hole is communicated with an air suction channel of the electronic cigarette.

Furthermore, the baffle plate comprises a bending section and a horizontal section, the bending section is connected with the edge of the air suction hole, and the horizontal section is opposite to the air suction hole.

Further, the suction hole is flat mouth shape, including two relative long sides and two relative short sides, and the radian of long side is greater than the radian of short side, the separation blade is followed the long side of one side of suction hole inwards stretches out.

In other embodiments, the long side edge of the other side of the air suction hole extends outwards to form a second blocking piece, and the second blocking piece is blocked right above the air suction hole.

Preferably, the air pressure sensing element is any one of a capacitive MEMS sensor, a piezoelectric MEMS sensor, and a piezoresistive capacitance sensor.

The air pressure processing chip is connected with the air pressure sensing element through a gold thread, the surface of the air pressure processing chip is sealed through epoxy resin, and the air pressure sensing element is fixed on the PCB through resin glue.

The utility model also provides an electron cigarette, including foretell baroceptor.

Compared with the prior art, the utility model discloses an inboard at the housing suction hole sets up the separation blade, and the air current direction when breathing in can not get into the housing perpendicularly in, but can deflect because of the separation blade, and the separation blade can directly block partial condensate or tobacco tar simultaneously, prevents in condensate or the tobacco tar directly gets into the cavity between housing and the PCB board to atmospheric pressure sensor's waterproof grease proofing ability has been improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic structural diagram in an embodiment of the present invention;

fig. 2 is a top view of an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of another embodiment of the present invention;

1. a PCB board; 2. a housing; 21. a baffle plate; 22. a second baffle plate; 3. a pneumatic processing chip; 4. an air pressure sensing element; 5. an air inlet; 6. and (4) an air suction hole.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The principles and structure of the present invention will be described in detail below with reference to the accompanying drawings and examples.

The existing electronic cigarette equipment comprises a battery assembly, a core control assembly, an atomizer, an air pressure sensor and the like, and the problem of structural design is solved, condensate can flow back to the electronic cigarette air pressure sensor after the atomization of tobacco tar, particularly, the situation that the condensate or the tobacco tar can flow back is often accompanied by the suction channel because the suction channel of the electronic cigarette is in the environment with moisture and easy effusion such as the atomizer and the oral cavity, and the suction hole of the air pressure sensor is directly communicated with the suction channel, the returned condensate or the tobacco tar can directly flow into the air pressure sensor through the suction channel, and the air pressure sensor is failed or fails. The utility model discloses mainly improve in suction opening department, avoid condensate or tobacco tar directly to get into the baroceptor as far as possible inside, improve the waterproof and oilproof effect of baroceptor, improve the normal life of baroceptor promptly.

As shown in fig. 1, the utility model provides an electron cigarette pressure sensor with grease proofing effect mainly includes: the PCB comprises a PCB board 1, a housing 2, an air pressure sensing element 4 and an air pressure processing chip 3; an air inlet 5 is formed in the PCB 1, and the air inlet 5 is communicated to the outside through an air inlet channel of the electronic cigarette; the air pressure sensing element 4 and the air pressure processing chip 3 (the chip is a chip commonly used by an air pressure sensor in the prior art, and is not particularly described in detail in terms of model and detailed functions) are installed on an installation surface of the PCB board 1 (as shown in the figure, the upper surface of the PCB board 1 is shown), and the air pressure sensing element 4 covers the air inlet hole 5, so that the air pressure sensing element 4 can normally sense air pressure change; the housing 2 is welded on the mounting surface of the PCB board 1 and covers the air pressure sensing element 4 and the air pressure processing chip 3 to form a cavity; the top surface of housing 2 is equipped with suction hole 6, suction hole 6's edge position is to sunken separation blade 21 that forms a step form in the housing 2, separation blade 21's partial surface is just to suction hole 6, the suction channel of suction hole 6 intercommunication electron cigarette, because changed the air current direction through separation blade 21 during breathing in, make the air current can not get into in the housing 2 perpendicularly, but can deflect because of separation blade 21, separation blade 21 can directly block partial condensate or tobacco tar simultaneously, prevent in condensate or the direct cavity that gets into between housing 2 and the PCB board 1 of tobacco tar, thereby atmospheric pressure sensor's waterproof grease proofing ability has been improved.

As shown in fig. 2, the suction hole 6 is in a flat shape, and is formed by two opposite arc-shaped long sides and two opposite vertical short sides (the short sides may also be arc-shaped, but the radian is smaller than that of the long sides), and the baffle 21 extends inwards from the long side of one side, so that most of the condensate or the smoke can be blocked.

In other embodiments, as shown in fig. 3, in order to further improve the oil and water proof effect, the second blocking piece 22, which is reversely symmetrical to the blocking piece 21, extends outwards from the long side edge of the other side of the air suction hole 6, and the second blocking piece 22 blocks right above the air suction hole 6, so as to further improve the oil and water proof effect.

The back of PCB board 11 levels, leaves the paster pad, can realize that surface SMT pastes the dress, is convenient for the utility model discloses paste the dress on the main PCB board of electron cigarette, with other subassembly integrations realize all functions of electron cigarette on a main PCB board.

In addition, compare in traditional atmospheric pressure induction system, the utility model discloses a 6 figure of suction port only one, and the aperture is little to be flat mouthful of form, cooperate separation blade 21 again, can reduce the probability that liquid and tobacco tar invade greatly. The housing 2 is made of brass nickel plating materials, can provide good physical protection and electromagnetic interference resistance, and is welded on the PCB 1 through solder paste, so that the air tightness is good. In addition, the dust screen can also be pasted outside the suction hole 6 for it falls into inside the device to prevent that the particulate matter from via inlet port 5, causes system function obstacle.

The air pressure processing chip 3 is fixed on the PCB board 1 by silica gel, and the air pressure sensing element 4 is fixed on the PCB board 1 by resin gel. And the air pressure processing chip 3 realizes electric signal bridging with the air pressure sensing element 4 through a gold wire, provides stable bias voltage for the air pressure sensing element 4, and processes air pressure data acquired from the air pressure sensing element 4. Meanwhile, the air pressure processing chip 3 is sealed by epoxy resin (black glue), so that when liquid or smoke drops above the air pressure processing chip, normal use of the sensor is not influenced, and the reliability is high.

In this embodiment, the air pressure sensing element is a MEMS silicon smoke sensor (specifically, a capacitive MEMS sensor, a piezoelectric MEMS sensor, or a piezoresistive capacitive sensor). The silicon-based sensing chip is generated by adopting a micron-sized CMOS chip process, has high consistency (a high-precision manufacturing process and uniform and stable bias voltage), small volume (0.95 x 0.5 mm) and high temperature resistance. Compared with the traditional PPS (polyphenylene sulfide) diaphragm, the MEMS silicon smoke sensor has the following remarkable advantages: (1) the temperature drift is small, the temperature compensation algorithm is insensitive to temperature change, and the design of the temperature compensation algorithm is simple; (2) a bias voltage circuit is designed, and the circuit enables the sensing membrane to be changed into a uniform charged state from a non-charged state, so that the consistency of the sensor is improved; (3) the sensing diaphragm area is little, and the sensing diaphragm diameter is 50um, and traditional diaphragm diameter is 4.5mm. The smaller the area of the diaphragm is, the smaller the deformation amount of the diaphragm is during vibration, impact and falling, and the bad phenomenon of false triggering can be reduced.

The utility model also provides an electron cigarette, including the electron cigarette baroceptor that has grease proofing effect that above-mentioned content described.

In other embodiments, the housing can also be directly attached to the PCB board through SMT; the chip and the air pressure sensing element can be arranged on the PCB board by adopting a solid gold method; other baroceptors such as capacitive sensor, piezoresistive sensor, piezoelectric sensor etc. also can be used, all be in the utility model discloses the within range of protection.

Claims

1. An electronic cigarette pressure sensor with oil-proof effect, comprising:

2. The electronic cigarette pressure sensor with oil-proof effect according to claim 1, wherein the baffle comprises a bending section and a horizontal section, the bending section is connected with the edge of the air suction hole, and the horizontal section is opposite to the air suction hole.

3. The electronic smoke pressure sensor with oil-proof effect as claimed in claim 1, wherein said air suction hole is in the shape of a flat mouth, and comprises two opposite long sides and two opposite short sides, the radian of the long sides is larger than that of the short sides, and said blocking piece protrudes inwards from one long side of said air suction hole.

4. The electronic cigarette pressure sensor with oil-proof effect according to claim 3, wherein a second blocking piece extends outwards from the long side edge of the other side of the air suction hole, and the second blocking piece is blocked right above the air suction hole.

5. The electronic cigarette pressure sensor with oil-proof effect according to claim 1, wherein the pressure-sensitive element is any one of a capacitive MEMS sensor, a piezoelectric MEMS sensor and a piezoresistive capacitive sensor.

6. The electronic cigarette air pressure sensor with the oil-proof effect according to claim 1, wherein the air pressure processing chip is connected to the air pressure sensing element through a gold wire.

7. The electronic cigarette pressure sensor with the oil-proof effect as claimed in claim 1, wherein the surface of the air pressure processing chip is sealed by epoxy resin, and the air pressure sensing element is fixed on the PCB by resin adhesive.

8. An electronic cigarette, characterized by comprising the electronic cigarette pressure sensor with oil-proof effect of any one of claims 1 to 7.