CN220255731U

CN220255731U - Circular patch type air pressure sensor

Info

Publication number: CN220255731U
Application number: CN202321809902.0U
Authority: CN
Inventors: 金向坤; 陆全; 傅明仁; 吴妙媚
Original assignee: Shenzhen Taimei Micro Technology Co ltd
Current assignee: Shenzhen Taimei Micro Technology Co ltd
Priority date: 2023-07-10
Filing date: 2023-07-10
Publication date: 2023-12-29
Anticipated expiration: 2033-07-10

Abstract

The utility model relates to a circular paster type air pressure sensor, including circuit board and casing, the casing includes inferior valve and epitheca, and the circuit board sets up in the inferior valve, is connected with the baffle between epitheca and the inferior valve, has seted up the air vent on the baffle, and baffle is close to inferior valve one side and just is connected with the cartridge filter that is used for filtering oil and water to the air vent, has seted up the inlet port on the inferior valve, and the inlet port sets up in cartridge filter scope, and the suction port has been seted up to the epitheca. When a user makes a smoking action, the pressure of air inside and outside the filter cartridge is the same, the air pressure sensor outputs a signal to the atomizer to generate smoke, and the smoke enters the shell from the air inlet hole, continuously flows through the filter cartridge and the air suction hole, and finally enters the oral cavity of the user. During the period, the filter cartridge isolates the smoke from the circuit board and the electronic components on the circuit board, and the smoke oil in the liquid state cannot contact with the circuit board and the electronic components. The application has the effects of reducing the influence of tobacco tar on the air pressure sensor and prolonging the service life of the air pressure sensor.

Description

Circular patch type air pressure sensor

Technical Field

The present application relates to the field of barometric sensors, and in particular, to a circular patch-type barometric sensor.

Background

The patch type air pressure sensor is applied to electronic cigarette production in a large number, when a user inhales the electronic cigarette, the air pressure sensor detects the change of the air pressure in the electronic cigarette and then outputs a signal to the atomizer, so that the atomizer starts to work to generate smoke, and the smoke passes through the air pressure sensor to reach the oral cavity of the user.

To above-mentioned related art, the smog that the atomizer produced is the tobacco tar heating production, has partial smog to remain in air pressure sensor after ending the smoking action, along with the reduction of temperature, resumes liquid tobacco tar and can adhere to the surface of electronic component and circuit board, and the tobacco tar long-term accumulation can influence the normal use of electronic component and circuit board, reduces air pressure sensor's life.

Disclosure of Invention

In order to reduce the influence of tobacco tar on the air pressure sensor and prolong the service life of the air pressure sensor, the application provides a circular patch air pressure sensor.

The application provides a circular patch formula air pressure sensor adopts following technical scheme:

the utility model provides a circular paster formula air pressure sensor, includes the circuit board that is used for installing the sensor element and is arranged in the casing of protection circuit board, the casing includes inferior valve and epitheca, the circuit board sets up in the inferior valve, be connected with the baffle between epitheca and the inferior valve, the air vent has been seted up on the baffle, baffle is close to inferior valve one side and just is connected with the cartridge filter that is used for filtering oil and water to the air vent, cartridge filter is kept away from air vent one end and inferior valve butt, set up on the circuit board and be used for dodging the mouth of dodging of cartridge filter, the cartridge filter wears to locate in dodging the mouth, set up the inlet port that is used for letting in smog on the inferior valve, the inlet port sets up within the cartridge filter scope, the upper shell has been seted up and has been used for inspiratory suction hole.

Through adopting above-mentioned technical scheme, when the user makes the action of smoking, the gas pressure in the casing changes, and the cartridge filter can only block oil and water and pass through, can not hinder the normal circulation of air, and therefore the gas pressure inside and outside the cartridge filter is the same, can not influence the electronic component on the circuit board and detect gas pressure, and air pressure sensor output signal produces smog to the atomizer, and smog gets into in the casing from the inlet port to continue to flow through cartridge filter and suction hole, finally get into user's oral cavity. During the period, the filter cylinder isolates the smoke from the circuit board and the electronic elements on the circuit board, so that the liquid tobacco tar can not contact with the circuit board and the electronic elements, the influence of the tobacco tar on the air pressure sensor is reduced, and the service life of the air pressure sensor is prolonged.

Optionally, the cartridge filter is close to lower shell one end and is equipped with the sealing washer that is used for reinforcing the leakproofness, and sealing washer is kept away from cartridge filter one end and lower shell butt.

Through adopting above-mentioned technical scheme, the sealing washer adopts soft rubber material to make, helps reinforcing cartridge filter tip and inferior valve between the leakproofness, prevents smog and circuit board contact.

Optionally, a sponge for collecting tobacco tar is detachably connected in the filter cartridge.

Through adopting above-mentioned technical scheme, the tobacco tar that smog liquefaction produced is accumulated in cartridge filter inner wall and can be blocked the cartridge filter, influences the accuracy that gaseous cartridge filter and then influence the atmospheric pressure and detect. Set up the sponge in the cartridge filter, in time adsorb cartridge filter surface's tobacco tar from cartridge filter surface, guarantee the normal circulation of air, improve atmospheric pressure detection's sensitivity and accuracy.

Optionally, a dust screen for preventing dust from entering the shell from the suction hole is arranged at one end of the upper shell far away from the lower shell.

Through adopting above-mentioned technical scheme, external dust is likely to get into the casing from the suction port and gather in, influences air pressure sensor's normal use, and the dust screen can be outside can not influencing the air circulation's with dust barrier and casing, helps air pressure sensor's stable use.

Optionally, set up the entrance hole that is used for the electric wire to get into the casing on the inferior valve, entrance hole department is equipped with sealed hose, and sealed hose is connected with the inferior valve and sealed hose inboard and electric wire butt.

Through adopting above-mentioned technical scheme, electronic component on the circuit board needs to realize power supply and information transmission through the electric wire, and the electric wire passes through the entrance hole and gets into the casing, and smog has the risk of getting into the casing from the entrance hole, sets up sealed hose, sealed hose inner wall and electric wire butt form good tightness effect, help reducing smog and get into the risk of casing from the entrance hole.

Optionally, the outside cover of sealed hose is equipped with the reinforcement pipe, and reinforcement pipe one end and inferior valve fixed connection, a plurality of expansion joints have been seted up to the reinforcement pipe along its length direction, and threaded connection has the reinforcement sleeve pipe that is used for compressing reinforcement pipe bore on the reinforcement pipe.

Through adopting above-mentioned technical scheme, consolidate sleeve pipe and consolidate pipe threaded connection back, consolidate the pipe and receive the extrusion and lead to its internal diameter to reduce, oppression sealing hose and the inseparabler butt of electric wire, help further reducing smog and get into the risk of casing from the entrance hole.

Optionally, the suction hole department is equipped with the fender flow board, and the fender flow board sets up in the epitheca and is close to inferior valve one side, and fender flow board is along its circumference fixedly connected with a plurality of connecting plates, and baffle flow board one end and epitheca fixed connection are kept away from to the connecting plate.

Through adopting above-mentioned technical scheme, smog only passes through the suction hole and gets into user's oral cavity, probably can cause user's discomfort, sets up the fender flow board, has prolonged the distance that smog got into the oral cavity to can produce certain vortex, make smog fully fuse, get into the oral cavity softly, help improving the experience of using.

Optionally, the baffle is in threaded connection with the upper shell, and the baffle is in threaded connection with the lower shell.

Through adopting above-mentioned technical scheme, sponge in the casing needs periodic replacement, and the baffle all adopts threaded connection with epitheca and inferior valve, does not install in the quick dismantlement of casing, is convenient for change the sponge, also is convenient for the maintenance of inside electronic component simultaneously.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when a user makes a smoke sucking action, the pressure of gas in the shell is changed, the pressure of gas inside and outside the filter cartridge is the same, the air pressure sensor outputs a signal to the atomizer to generate smoke, the smoke enters the shell from the air inlet hole and continuously flows through the filter cartridge and the air suction hole to enter the oral cavity of the user, the filter cartridge isolates the smoke from the circuit board and electronic elements on the circuit board, and liquid tobacco tar is recovered to be unable to contact with the circuit board and the electronic elements, so that the influence of the tobacco tar on the air pressure sensor is reduced, and the service life of the air pressure sensor is prolonged;

2. electronic component on the circuit board needs to realize power supply and information transmission through the electric wire, and the electric wire gets into the casing through the entrance hole, and smog has the risk of getting into the casing from the entrance hole, sets up sealed hose, sealed hose inner wall and electric wire butt form good tightness effect, help reducing smog and get into the risk of casing from the entrance hole.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the embodiment.

Fig. 2 is an exploded schematic view of an embodiment.

Fig. 3 is a schematic diagram of the internal structure of the embodiment.

Fig. 4 is an enlarged schematic view of the portion a in fig. 2.

Reference numerals illustrate: 1. a circuit board; 11. an avoidance port; 2. a housing; 21. an upper case; 211. an air suction hole; 212. a dust screen; 213. a flow baffle; 214. a connecting plate; 22. a lower case; 221. an air inlet hole; 222. a wire inlet hole; 223. sealing the hose; 224. reinforcing the pipe; 225. reinforcing the sleeve; 3. a partition plate; 31. a vent; 32. a filter cartridge; 321. a seal ring; 322. and (3) a sponge.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses a circular patch type air pressure sensor.

Referring to fig. 1 and 2, a circular patch type air pressure sensor includes a circuit board 1 and a housing 2, wherein the circuit board 1 is used for mounting various electronic devices including a micro-electro-mechanical sensor, a filter capacitor, an ASIC chip, and the like. The housing 2 is used to protect the circuit board 1 and the electronic components mounted on the circuit board 1. The whole shell 2 is cylindrical, comprises a lower shell 22 and an upper shell 21, the circuit board 1 is arranged in the lower shell 22, a partition plate 3 is connected between the upper shell 21 and the lower shell 22, and a circular vent 31 is formed in the middle of the partition plate 3. The baffle 3 is close to the lower shell 22 side fixedly connected with cartridge filter 32, and cartridge filter 32 just sets up to the air vent 31 for oil and water in the filtration air. One end of the filter cartridge 32 far away from the air vent 31 is abutted against the lower shell 22, and an avoidance opening 11 is formed in the middle of the circuit board 1 and used for avoiding the filter cartridge 32. The lower case 22 is provided with air inlet holes 221 for introducing smoke, the air inlet holes 221 are all positioned within the range of the filter cartridge 32, and the upper case 21 is provided with air suction holes 211. When a user makes a smoking action, the air pressure in the shell 2 is changed, and the filter cartridge 32 does not obstruct the normal circulation of air, so that the air pressure inside and outside the filter cartridge 32 is the same, and the detection of the air pressure by the electronic components on the circuit board 1 is not influenced. The air pressure sensor outputs a signal to the atomizer to generate smoke, which enters the housing 2 of the housing 2 from the air inlet 221 and continues to flow through the filter cartridge 32 and the air suction hole 211 into the mouth of the user. During the period, the filter cylinder 32 isolates the smoke from the circuit board 1 and the electronic components on the circuit board 1, so that the liquid tobacco tar can not contact with the circuit board 1 and the electronic components, the influence of the tobacco tar on the air pressure sensor is reduced, and the service life of the air pressure sensor is prolonged.

Referring to fig. 2 and 3, a sealing ring 321 is disposed at one end of the filter cartridge 32 near the lower shell 22, one end of the sealing ring 321 far away from the filter cartridge 32 abuts against the lower shell 22, and the sealing ring 321 is made of soft rubber material, so as to enhance the tightness between the end of the filter cartridge 32 and the lower shell 22 and prevent smoke from contacting the circuit board 1.

Referring to fig. 2 and 3, the accumulation of tobacco tar generated by smoke liquefaction in the inner wall of the filter cartridge 32 may clog the filter cartridge 32, affect the gas passing through the filter cartridge 32, and further affect the accuracy of the air pressure detection. Be provided with sponge 322 in the cartridge filter 32, sponge 322 and cartridge filter 32 interference fit for in time adsorb the tobacco tar on cartridge filter 32 surface, guarantee the normal circulation of air, improve atmospheric pressure detection's sensitivity and accuracy.

Referring to fig. 1 and 2, external dust may be accumulated in the case 2 from the suction hole 211, affecting the normal use of the air pressure sensor. The upper casing 21 is provided with a dust screen 212 at one end far away from the lower casing 22 for preventing dust from entering the casing 2 from the suction hole 211, and the dust screen 212 can block dust outside the casing 2 without affecting air circulation, thereby facilitating stable use of the air pressure sensor.

Referring to fig. 3 and 4, the electronic components on the circuit board 1 need to be powered and information transmitted by electric wires, and the lower case 22 is provided with a wire inlet 222, the electric wires enter the case 2 through the wire inlet 222, and smoke is at risk entering the case 2 from the wire inlet 222. The sealing hose 223 is arranged at the wire inlet hole 222, the sealing hose 223 is connected with the lower shell 22, the inner side of the sealing hose 223 is abutted against the electric wire, a good tightness effect is achieved, and the risk that smoke enters the shell 2 from the wire inlet hole 222 is reduced.

Referring to fig. 2 and 4, a reinforcement pipe 224 is sleeved outside the sealing hose 223, the inner wall of the reinforcement pipe 224 is abutted against the outer wall of the sealing hose 223, one end of the reinforcement pipe 224 is fixedly connected with the lower shell 22, a plurality of expansion joints are formed in the reinforcement pipe 224 along the length direction of the reinforcement pipe, and the expansion joints are uniformly distributed along the circumferential direction of the section of the expansion joint. The reinforcing pipe 224 is threaded with the reinforcing sleeve 225 that is used for compressing the bore of reinforcing pipe 224, and behind reinforcing sleeve 225 and the reinforcing pipe 224 threaded connection, reinforcing pipe 224 receives the extrusion and leads to its internal diameter to reduce, oppression sealing hose 223 and the inseparabler butt of electric wire, helps further improving the sealing performance between electric wire and the sealing hose 223, reduces the risk that smog gets into casing 2 from inlet wire hole 222.

Referring to fig. 3, smoke directly enters the mouth of the user through the air suction hole 211, possibly causing discomfort to the user. The air suction hole 211 is provided with a baffle plate 213 at one side close to the lower shell 22, the baffle plate 213 is fixedly connected with three connecting plates 214 along the circumferential direction, the connecting plates 214 are perpendicular to the baffle plate 213, and one end of each connecting plate 214, far away from the baffle plate 213, is fixedly connected with the upper shell 21. The baffle 213 extends the path of the smoke into the mouth and may create a turbulent flow to cause the smoke to fuse sufficiently and gently into the mouth, helping to improve the use experience.

Referring to fig. 2 and 3, the sponge 322 in the housing 2 needs to be replaced periodically, and the partition plate 3 is in threaded connection with the upper shell 21 and the lower shell 22, so that the housing 2 can be disassembled quickly, the sponge 322 can be replaced conveniently, and meanwhile, the maintenance of internal electronic components is also facilitated.

The implementation principle of the circular patch type air pressure sensor provided by the embodiment of the application is as follows: the user makes the action of smoking and drives the gas pressure in the casing 2 to change, and the cartridge filter 32 can block oil and water from passing, but can not obstruct the normal circulation of air, so that the gas on the inner side and the outer side of the cartridge filter 32 can not produce pressure difference, and the electronic components on the circuit board 1 can normally detect the gas pressure. The air pressure sensor outputs a signal to the atomizer to generate smoke, which enters the housing 2 of the housing 2 from the air inlet 221 and continues to flow through the filter cartridge 32 and the air suction hole 211 into the mouth of the user. During the period, the filter cylinder 32 isolates the smoke from the circuit board 1 and the electronic components on the circuit board 1, and the liquid tobacco tar can remain on the inner wall of the filter cylinder 32 and cannot contact with the circuit board 1 and the electronic components, so that the influence of the tobacco tar on the air pressure sensor is reduced, and the service life of the air pressure sensor is prolonged.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. Circular paster type air pressure sensor, including circuit board (1) and casing (2) that are used for protecting circuit board (1) that are used for installing sensor element, its characterized in that: the shell (2) comprises a lower shell (22) and an upper shell (21), the circuit board (1) is arranged in the lower shell (22), a partition plate (3) is connected between the upper shell (21) and the lower shell (22), a vent (31) is formed in the partition plate (3), a filter cylinder (32) for filtering oil and water is connected to one side, close to the lower shell (22), of the partition plate (3) opposite to the vent (31), one end, far away from the vent (31), of the filter cylinder (32) is abutted to the lower shell (22), an avoidance opening (11) for avoiding the filter cylinder (32) is formed in the circuit board (1), the filter cylinder (32) is arranged in the avoidance opening (11) in a penetrating mode, an air inlet hole (221) for introducing smoke is formed in the lower shell (22), and the upper shell (21) is provided with an air suction hole (211) for sucking air.

2. A circular patch air pressure sensor as set forth in claim 1 wherein: and one end of the filter cylinder (32) close to the lower shell (22) is provided with a sealing ring (321) for enhancing the sealing performance, and one end of the sealing ring (321) far away from the filter cylinder (32) is abutted against the lower shell (22).

3. A circular patch air pressure sensor as set forth in claim 1 wherein: a sponge (322) for collecting tobacco tar is detachably connected in the filter cartridge (32).

4. A circular patch air pressure sensor as set forth in claim 1 wherein: one end of the upper shell (21) far away from the lower shell (22) is provided with a dustproof net (212) for preventing dust from entering the shell (2) from the suction hole (211).

5. A circular patch air pressure sensor as set forth in claim 1 wherein: the lower shell (22) is provided with a wire inlet hole (222) for the electric wire to enter the shell (2), a sealing hose (223) is arranged at the wire inlet hole (222), the sealing hose (223) is connected with the lower shell (22), and the inner side of the sealing hose (223) is abutted with the electric wire.

6. The circular patch air pressure sensor of claim 5 wherein: the sealing hose (223) outside cover is equipped with reinforcement pipe (224), and reinforcement pipe (224) one end and inferior valve (22) fixed connection, and a plurality of expansion joints have been seted up along its length direction to reinforcement pipe (224), and threaded connection has reinforcement sleeve (225) that are used for compressing reinforcement pipe (224) bore on reinforcement pipe (224).

7. A circular patch air pressure sensor as set forth in claim 1 wherein: the air suction hole (211) is provided with a flow baffle (213), the flow baffle (213) is arranged on one side of the upper shell (21) close to the lower shell (22), the flow baffle (213) is fixedly connected with a plurality of connecting plates (214) along the circumferential direction of the flow baffle, and one end of each connecting plate (214) away from the flow baffle (213) is fixedly connected with the upper shell (21).

8. A circular patch air pressure sensor as set forth in claim 1 wherein: the partition board (3) is in threaded connection with the upper shell (21), and the partition board (3) is in threaded connection with the lower shell (22).