CN210603697U - Airflow detection sensor package, airflow detection sensor and electronic equipment - Google Patents
Airflow detection sensor package, airflow detection sensor and electronic equipment Download PDFInfo
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- CN210603697U CN210603697U CN201921645149.XU CN201921645149U CN210603697U CN 210603697 U CN210603697 U CN 210603697U CN 201921645149 U CN201921645149 U CN 201921645149U CN 210603697 U CN210603697 U CN 210603697U
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- 238000001514 detection method Methods 0.000 title claims abstract description 24
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 239000000428 dust Substances 0.000 claims description 8
- 230000001788 irregular Effects 0.000 claims description 3
- 241000463219 Epitheca Species 0.000 description 7
- 239000003571 electronic cigarette Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses an air flow detection sensor package, an air flow detection sensor and an electronic device, which comprises a substrate, a shell and a polar plate, wherein the substrate and the shell enclose a package space, a chip is packaged in the package space, and the polar plate is arranged on one side of the shell close to the package space; the shell is provided with an air hole, the polar plate is provided with a pressure equalizing hole, the pressure equalizing hole is communicated with the air hole, and one side of the shell, which is close to the polar plate, is provided with a pressure equalizing groove; when the polar plate rotates relative to the shell, the pressure equalizing holes are always communicated with the pressure equalizing grooves, at least one pressure equalizing hole is provided, at least two pressure equalizing grooves are provided, when the polar plate rotates relative to the shell, at least one pressure equalizing hole is always communicated with the pressure equalizing grooves, and when the polar plate rotates relative to the shell, the pressure equalizing holes are always communicated with the pressure equalizing grooves.
Description
Technical Field
The utility model relates to a sensor especially relates to an air current detects sensor.
Background
The airflow detection sensor is widely applied to electronic equipment, such as an electronic cigarette, and the airflow detection sensor on the electronic cigarette is also called an electronic cigarette microphone, and is mainly applied to detection of airflow in airflow transformation devices such as the electronic cigarette, and the airflow detection sensor is used for outputting signals by converting the changes of the air pressure at two ends of the airflow detection sensor into the changes of the capacitance inside the sensor, and is used as a switch of the electronic cigarette.
As shown in fig. 1 to 3, the conventional package for an airflow detection sensor includes a casing 101 and a plate 102 fastened to one side of the casing 101, a PCB (not shown) combined with the casing 101 is disposed on the other side of the casing 101, the casing and the PCB form a package space, a pressure equalizing hole 103 is disposed on the plate 102, an air hole 104 is disposed on the casing 101, the pressure equalizing hole 103 is communicated with the air hole 104, a pressure equalizing groove 105 is disposed on one side of the casing 101 close to the plate 102, and the pressure equalizing groove 105 is used for equalizing the package space and the external air pressure, especially the air pressure inside and outside the sound hole. The air flow sensing of the packaging structure has the following problems in the use process:
firstly, when the polar plate is assembled with the shell, the orthographic projection of the pressure equalizing hole on the polar plate on the shell body is possibly not overlapped with the pressure equalizing groove, so that the pressure equalizing hole cannot be communicated with the pressure equalizing groove, the pressure equalizing groove cannot play a role of equalizing air pressures on the inner side and the outer side of the air hole, and the polar plate is required to be rotated to a special position (as shown in figure 3) when being installed, so that the orthographic projection of the pressure equalizing hole on the polar plate on the shell body is at least partially overlapped with the pressure equalizing groove.
In the air current detection sensor among second, the part electronic equipment, the gas pocket covers there is the dust screen, and in long-time use, the collection is more dust on the dust screen, reduces the gas permeability of dust screen, can block up the gas pocket on the shell finally, can cause the product to trigger by mistake or from triggering the phenomenon.
Accordingly, there is a need for an improvement to overcome the deficiencies of the prior art airflow detecting sensors.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem among the prior art, the air current that when providing an equipment equalizer groove and voltage-sharing hole can communicate all the time detects sensor package, air current detection sensor and electronic equipment.
The technical scheme of the utility model is that:
an airflow detection sensor package comprises a substrate, a shell and a polar plate, wherein a package space is enclosed by the substrate and the shell, a chip is packaged in the package space, and the polar plate is arranged on one side of the shell, which is close to the package space; the shell is provided with an air hole, the polar plate is provided with a pressure equalizing hole, the pressure equalizing hole is communicated with the air hole, and one side of the shell, which is close to the polar plate, is provided with a pressure equalizing groove; when the polar plate rotates relative to the shell, the pressure equalizing hole is always communicated with the pressure equalizing groove.
As a further preferable technical solution, at least one pressure equalizing hole is provided, at least two pressure equalizing grooves are provided, and when the pole plate rotates relative to the housing, at least one pressure equalizing hole is communicated with the two pressure equalizing grooves.
As a preferable technical scheme, the pressure equalizing grooves are of arc structures, rectangular structures, circular structures or irregular structures.
As a further preferable technical solution, the pressure equalizing groove comprises an arc structure and a rectangular structure which are communicated with each other.
As a further preferable technical solution, the pressure equalizing groove includes at least two arc structures which are not communicated.
As a preferable technical solution, the housing includes an upper shell and a side shell surrounding the upper shell, the air hole and the pressure equalizing groove are provided in the upper shell, and one end of the pressure equalizing groove extends to a junction of the upper shell and the side shell.
As a preferable technical scheme, a dust screen covering the air hole is arranged on the shell.
An airflow detecting sensor comprises the airflow detecting sensor package.
An electronic device comprising the airflow detection sensor.
The utility model discloses an air current detects sensor package, through improving, realized that the orthographic projection of voltage-sharing hole on the polar plate on the surface of the epitheca has at least part to overlap with the voltage-sharing groove all the time, when the polar plate rotates for the casing, the voltage-sharing hole all the time with the voltage-sharing groove intercommunication, the voltage-sharing groove can both play the effect of the inside and outside both sides atmospheric pressure of balanced gas pocket at any time, when the dust screen gas permeability reduces, effectively avoid the product spurious triggering or from triggering the phenomenon simultaneously.
Drawings
FIG. 1 is a top view and a cross-sectional view of a plate of an airflow detecting sensor package structure in the prior art;
FIG. 2 is a top view and a cross-sectional view of a housing of an airflow detecting sensor package structure in the prior art;
FIG. 3 is a top view and a cross-sectional view of the plate of FIGS. 1 and 2 after assembly with the housing and the plate rotated to a particular angle;
fig. 4 is a front view of an air flow detection sensor package structure in embodiment 1 of the present invention;
FIG. 5 is a top view and a cross-sectional view of the plate of FIG. 4;
FIG. 6 is a top view and a cross-sectional view of the housing of FIG. 4;
FIG. 7 is a top plan view and a cross-sectional view of the combination of FIGS. 5 and 6;
fig. 8 is a top view and a cross-sectional view of a gas flow detection sensor plate according to embodiment 2 of the present invention;
fig. 9 is a top view and a cross-sectional view of a housing of an airflow detection sensor according to embodiment 2 of the present invention;
FIG. 10 is a top plan view and a cross-sectional view of the combination of FIGS. 8 and 9;
fig. 11 is a plan view of a housing of an airflow detection sensor according to embodiment 4 of the present invention;
fig. 12 is a top view of an airflow detecting sensor housing according to another embodiment of the present invention;
fig. 13 is a top view and a cross-sectional view of an airflow detecting sensor according to another embodiment of the present invention.
Detailed Description
In order to make the utility model realize that the technical means, technical characteristics, utility model purpose and technological effect are easily understood and known, combine specific figure below, further explain the utility model.
The first embodiment is as follows:
as shown in fig. 4 to 7, an airflow detection sensor package structure is used for an electronic device such as an electronic cigarette, and includes a substrate 1, a case 2, a pole plate 3, and a chip 4, where the case 2 includes an upper case 21 and a side case 22 surrounding the periphery of the upper case, the other end of the side case 22 is connected with the substrate 1 to form a package space, that is, the substrate 1 and the case 2 form a package space 5 for packaging the chip 4 and a diaphragm 9, and the pole plate 3 is disposed on one side of the upper case 21 of the case 2 close to the package space 5; the epitheca 21 of casing 2 is equipped with gas pocket 6, and gas pocket 6 coats and is stamped dust screen 10, and polar plate 3 is equipped with pressure-equalizing hole 7, and pressure-equalizing hole quantity is 5, certainly, the quantity in pressure-equalizing hole can set up to the arbitrary nature several between 1 to 10 according to actual conditions, and pressure-equalizing hole 7 and gas pocket 6 intercommunication to with the external and encapsulation space intercommunication of gas pocket, one side that upper shell 21 of casing 2 is located polar plate 3 is equipped with pressure-equalizing groove 8, pressure-equalizing groove 8 is the arc structure, pressure-equalizing groove 8 encircles gas pocket 6 sets up, when polar plate 3 and casing 2's epitheca 21 pressed close to parallel arrangement and rotate for the surface of epitheca 21, pressure-equalizing hole 7 communicates with pressure-equalizing groove 8 all the time. Namely, the orthographic projection of the pressure equalizing hole 7 on the pole plate 3 on the surface of the upper shell 21 is always at least partially overlapped with the pressure equalizing groove 8, so that the pressure equalizing hole is always communicated with the pressure equalizing groove, and the pressure equalizing groove can always play a pressure equalizing role.
Wherein, the base plate is the PCB board, and chip 4 includes the ASIC chip, and one side that polar plate 3 deviates from epitheca 21 is equipped with gasket 11, is equipped with vibrating diaphragm 9 on the gasket 11.
When the number of the pressure equalizing holes 7 is two or more, at least two of the pressure equalizing holes are arranged on the same circular arc, so that when the polar plate is combined with the upper shell, the polar plate rotates no matter how, and at least two pressure equalizing holes are communicated with the pressure equalizing groove.
The pole plate 3 is clamped in a space surrounded by the side shell 22 of the shell 2 and is abutted against the upper shell 21, and of course, the pole plate 3 can also be directly pressed on the upper shell 21 for laser welding or gluing. The expression "press close to" and "fit" in the present invention only means that two components are close to each other, and does not mean that the components are necessarily connected in an adhesive manner.
The air flow detection sensor package of this kind of design need not to consider the position relation of polar plate and the epitheca of casing when the equipment, directly presses the polar plate to the epitheca at side shell top, just can guarantee that voltage-sharing hole and pressure-equalizing groove communicate all the time, need not to rotate the polar plate and adjusts, has improved the product percent of pass, has also improved production efficiency greatly.
On the other hand, the pressure equalizing holes are always communicated with the pressure equalizing grooves, so that the pressure equalizing grooves are ensured to always play a pressure equalizing role.
Example two:
as shown in fig. 8 to 10 together, as a further improvement of the first embodiment, the plate 3 is of a circular structure, the pressure equalizing hole 7 on the plate 3 is one, certainly, the specific number of the pressure equalizing holes can be any natural number between 1 and 10, the upper shell is of a circular structure, the air hole 6 is located at the center of the upper shell, and the pressure equalizing groove 8 is one, certainly, the specific number of the pressure equalizing groove can be any natural number between 1 and 10, the pressure equalizing groove 8 comprises a rectangular structure portion 81 and an arc structure portion 82, the rectangular structure portion 81 is communicated with the arc structure portion 82, one end of the rectangular structure portion 81 extends to the side shell 22, the arc portion 82 is located at a circle having the same center as the upper shell 21, when the plate 3 is combined with the upper shell 21, the radius from the pressure equalizing hole to the center of the plate is equal to the radius from the arc structure portion 82 to the center of the upper shell, the pressure equalizing hole 7 is located on the arc structure portion 82 in an orthographic projection of the upper shell 21, when the pressure equalizing hole polar plate 3 rotates relative to the upper shell 21 of the shell 2, the pressure equalizing holes 7 are always communicated with the arc-shaped structure parts 82 of the pressure equalizing grooves 8. Of course, the pressure equalizing grooves in the present embodiment may include only the circular arc structure portion, and do not include the rectangular structure portion. The pressure equalizing groove comprises a rectangular structure part and an arc structure part, and the rectangular part extends to the side shell 22, so that even if the dustproof net is blocked, because the pressure equalizing groove extends to the side shell, a small gap still exists when the side shell is combined with other components such as a polar plate and a base plate, and under extreme conditions, the small gap can still ensure that the pressure equalizing groove can play a certain pressure equalizing role.
Example three:
as a further improvement to the second embodiment, different from the second embodiment, the number of the pressure equalizing holes 7 in the present embodiment is five, and the five pressure equalizing holes 7 are uniformly distributed on an arc of a circle concentric with the pole plate. The radius of the circle of the circular arc where the pressure equalizing holes are located is the same as that of the circle of the circular arc structure part 82 of the pressure equalizing groove 8, namely when the pole plate 3 is attached to the upper shell 21, the circle center of the pole plate coincides with the circle center of the upper shell, and the orthographic projection of five pressure equalizing holes 7 located on the upper shell 21 is located on the arc structure part 82. Of course, the pressure equalizing grooves in the present embodiment may include only the circular arc structure portion, and do not include the rectangular structure portion. The design can ensure that the pressure equalizing holes are communicated with the pressure equalizing grooves all the time, and the pressure equalizing effect cannot be influenced even if the individual pressure equalizing holes are blocked.
Example four:
as a further improvement to the second embodiment, unlike the second embodiment, there are 5 pressure equalizing holes 7 and two pressure equalizing grooves 8 in the present embodiment, and when the plate rotates relative to the housing, when the plate rotates to a certain position, one pressure equalizing hole 7 is communicated with two pressure equalizing grooves 8. Of course, there may be a plurality of pressure equalizing holes and pressure equalizing grooves, for example, any natural number between 1 and 10, and when the plate rotates relative to the housing, at least one pressure equalizing hole 7 communicates with two pressure equalizing grooves 8 when the plate rotates to a certain position. As shown in fig. 11, the pressure equalizing grooves are arc-shaped, and this design can effectively prevent individual pressure equalizing grooves from being blocked, and the same pressure equalizing hole can be communicated with other pressure equalizing grooves, so that the airflow detecting sensor can work normally.
In the above four embodiments, the pressure equalizing groove 8 has a rectangular structure, one end of the pressure equalizing groove 8 extends to the intersection of the upper shell 21 and the side shell 22, because the shell and the substrate are assembled, the connection between the shell and other components inevitably leaves a tiny gap, when the air hole is blocked or the air hole and the pressure equalizing hole are blocked, under the limit condition, the pressure equalizing groove can still be communicated with the outside through the tiny gap between the shell and other components, the pressure equalizing effect is achieved, and the air flow detection sensor is prevented from being triggered or triggered by mistake.
In the above four embodiments, the pressure equalizing grooves may also be other regular shapes and irregular shapes, such as square, circle, ellipse, wavy line, and so on.
As shown in fig. 12, according to the first embodiment, the pressure equalizing groove 8 is set to be an oval shape, the number of the pressure equalizing holes 7 is 5, and the pressure equalizing holes 7 are uniformly distributed around the center of the air hole 6, at this time, the number of the pressure equalizing holes 7 can be any natural number from 3 to 10, the center of the oval pressure equalizing groove 8 also coincides with the center of the air hole 6, at this time, the pressure equalizing groove 8 is communicated with the four pressure equalizing holes 7 in fig. 12, and when the pole plate 3 and the upper case 21 of the housing 2 are arranged close to the parallel and rotate relative to the surface of the upper case 21, the pressure equalizing holes 7 are always communicated with the pressure equalizing groove 8. Namely, the orthographic projection of the pressure equalizing hole 7 on the pole plate 3 on the surface of the upper shell 21 is always at least partially overlapped with the pressure equalizing groove 8, so that the pressure equalizing hole is always communicated with the pressure equalizing groove, and the pressure equalizing groove can always play a pressure equalizing role.
Example five:
in the embodiment shown in fig. 13, two pressure equalizing grooves are distributed along the circumferential direction of the air hole, five pressure equalizing holes are formed, the centers of the five centers of the pressure equalizing holes coincide with the center of the air hole, the radian interval between the two pressure equalizing grooves is 45 degrees, the two pressure equalizing grooves are both rectangular grooves, in fig. 13, one end of each pressure equalizing groove is communicated with the pressure equalizing hole in the pole plate, the other end of each pressure equalizing groove extends to the side part of the shell, the shell comprises an upper shell and a side shell surrounding the upper shell, the air hole and the pressure equalizing grooves are arranged in the upper shell, the shell side part is the intersection of the upper shell and the side shell, the pressure equalizing grooves are communicated with the external environment through the communication between the pressure equalizing grooves and the shell side part, the pressure equalizing grooves are communicated with the shell gap or the substrate gap under extreme conditions, and pressure equalizing is. Of course, for the two adjacent pressure equalizing grooves described in this embodiment, when the pressure equalizing hole and the housing are installed, no matter how the pressure equalizing hole rotates relative to the pressure equalizing groove, it is ensured that one of the pressure equalizing grooves is communicated with one of the pressure equalizing holes, and of course, the two adjacent pressure equalizing grooves may be designed as more than two pressure equalizing grooves, or the interval angle between the two pressure equalizing grooves is 90 degrees, 135 degrees or 180 degrees, as long as one pressure equalizing groove is always communicated with one pressure equalizing hole when the plate rotates.
In summary, the preferred embodiments of the present invention are only described, and the scope of the present invention is not limited thereto. All equivalent changes and modifications made according to the content of the claims of the present invention shall fall within the technical scope of the present invention.
Claims (10)
1. The package of the airflow detection sensor is characterized by comprising a substrate, a shell and a polar plate, wherein a package space is enclosed by the substrate and the shell, a chip is packaged in the package space, and the polar plate is arranged on one side, close to the package space, of the shell; the shell is provided with an air hole, the polar plate is provided with a pressure equalizing hole, one side of the shell close to the polar plate is provided with a pressure equalizing groove, one end of the pressure equalizing groove is communicated with the pressure equalizing hole of the polar plate, and the other end of the pressure equalizing groove extends to the side part of the shell to be communicated with the external environment; when the polar plate rotates relative to the shell, the pressure equalizing hole is always communicated with the pressure equalizing groove.
2. The airflow detecting sensor package of claim 1, wherein: the number of the pressure equalizing holes is at least one, the number of the pressure equalizing grooves is at least two, and when the polar plate rotates relative to the shell, at least one pressure equalizing hole is communicated with the two pressure equalizing grooves.
3. The airflow detecting sensor package of claim 1, wherein: the pressure equalizing is at least two and is distributed at intervals along the circumference of the air hole.
4. The airflow detecting sensor package of claim 1, wherein: the pressure equalizing groove is of an arc structure, a rectangular structure, a circular structure or an irregular structure.
5. The airflow detecting sensor package of claim 1, wherein: the pressure equalizing groove comprises an arc structure and a rectangular structure which are communicated.
6. The airflow detecting sensor package of claim 1, wherein: the pressure equalizing groove comprises at least two arc structures which are not communicated.
7. The airflow detecting sensor package of claim 1, wherein: the shell comprises an upper shell and a side shell surrounding the upper shell, the air hole and the pressure equalizing groove are arranged in the upper shell, and one end of the pressure equalizing groove extends to the junction of the upper shell and the side shell.
8. The airflow detecting sensor package of claim 1, wherein: and the shell is provided with a dust screen covering the air holes.
9. An airflow detecting sensor characterized by: comprising an airflow detecting sensor package according to any of claims 1 to 8.
10. An electronic device, characterized in that: comprising the airflow detecting sensor of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921645149.XU CN210603697U (en) | 2019-09-29 | 2019-09-29 | Airflow detection sensor package, airflow detection sensor and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921645149.XU CN210603697U (en) | 2019-09-29 | 2019-09-29 | Airflow detection sensor package, airflow detection sensor and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210603697U true CN210603697U (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921645149.XU Active CN210603697U (en) | 2019-09-29 | 2019-09-29 | Airflow detection sensor package, airflow detection sensor and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210603697U (en) |
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2019
- 2019-09-29 CN CN201921645149.XU patent/CN210603697U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231115 Address after: 261206 No.2 Zhengtai Road, Fangzi District, Weifang City, Shandong Province Patentee after: WEIFANG ZHENGDA INDUSTRY CO.,LTD. Address before: Room 109, No.396, Songling Road, Laoshan District, Qingdao, Shandong Province Patentee before: Qingdao Geer Intelligent Sensor Co.,Ltd. |
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| TR01 | Transfer of patent right |