CN220063232U - Miniaturized pressure sensor - Google Patents
Miniaturized pressure sensor Download PDFInfo
- Publication number
- CN220063232U CN220063232U CN202321436001.1U CN202321436001U CN220063232U CN 220063232 U CN220063232 U CN 220063232U CN 202321436001 U CN202321436001 U CN 202321436001U CN 220063232 U CN220063232 U CN 220063232U
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- circuit board
- wall
- welded
- pressure sensor
- board
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- 230000003750 conditioning effect Effects 0.000 claims abstract description 21
- 238000003466 welding Methods 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims description 13
- 241000463219 Epitheca Species 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 claims description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 7
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- 241001391944 Commicarpus scandens Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a miniaturized pressure sensor, which comprises an upper shell and a lower shell, wherein a sector plate is welded on the inner wall of the top of the upper shell, a gasket, an anti-reflection circuit board, a power circuit board and a signal conditioning circuit board are sequentially arranged on the outer wall of one side of each sector plate from bottom to bottom, a first board-level electric connector is connected between the anti-reflection circuit board and the power circuit board, a second board-level electric connector is connected between the power circuit board and the signal conditioning circuit board, a pressure sensitive element is welded at the bottom end of the lower shell, and an electric interface is welded on the inner wall of the upper shell. The anti-reflection circuit board is connected with the power circuit board through the first board-level electric connector, the power circuit board is connected with the signal conditioning circuit board through the second board-level electric connector, no lead is arranged in the power circuit board, and further, the space of a wire or a soft flat cable is not required to be reserved, the volume of the pressure sensor can be integrally reduced, miniaturization is achieved, and no welding point between the wire or the soft flat cable and a part exists when no lead is connected.
Description
Technical Field
The utility model relates to the technical field of pressure sensors, in particular to a miniaturized pressure sensor.
Background
A pressure sensor is a device or apparatus that senses a pressure signal and converts the pressure signal to a usable output electrical signal according to a certain law. Pressure sensors are generally composed of a pressure sensitive element and a signal processing unit. According to different test pressure types, the pressure sensor can be divided into a gauge pressure sensor, a differential pressure sensor and an absolute pressure sensor, and in the application of the pressure sensor, the requirements on miniaturization and high precision of the sensor are higher and higher.
For example, CN114486056a, a miniaturized pressure sensor with the authorized bulletin date 2022.05.13 includes a cover plate, a housing, a filter module, a socket, a power source, a calculation compensation module, and a pressure sensitive component; the power supply and the calculation compensation module are fastened through a support, the support is fixedly connected to the pressure sensitive assembly, the filtering module is provided with a small hole for a welding cup on the socket to pass through, and the filtering module is connected with the power supply.
The components are usually connected by wires or flexible flat cables, and a sufficient space is reserved for the welding operation of the wires or flexible flat cables, so that the volume of the pressure sensor is increased, and the welding position between the wires and the flexible flat cables and the components is easily disconnected, so that a miniaturized pressure sensor is needed to solve the problems.
Disclosure of Invention
The object of the present utility model is to provide a miniaturized pressure sensor that solves the above-mentioned drawbacks of the prior art.
In order to achieve the above object, the present utility model provides the following technical solutions:
the utility model provides a miniaturized pressure sensor, includes epitheca and inferior valve, the inner wall welding at epitheca top has the sector plate, two from down having set gradually liner, anti-circuit board, power supply circuit board, signal conditioning circuit board on the outer wall of sector plate one side, and be connected with first board level electric connector between anti-circuit board and the power supply circuit board, power supply circuit board and signal conditioning circuit board are connected with second board level electric connector, the bottom welding of inferior valve has pressure sensitive piece, and welds on the inner wall of epitheca has electrical interface, be provided with the stitch on the outer wall of electrical interface bottom, and stitch welding is on anti-circuit board, the stitch runs through in the inside of liner, the top welding of pressure sensitive piece is on the outer wall of signal conditioning circuit board bottom.
Further, the outer wall top welding of inferior valve has the solid fixed ring, and a plurality of cavity has been seted up to the inside of solid fixed ring, the inside sliding connection of cavity has the inserted block.
Furthermore, a plurality of slots are formed in the bottom of the outer wall of the upper shell, and the plug blocks are inserted into the slots.
Further, a pull rod is welded on the outer wall of one side of the insert block, and the pull rod extends to the outside of the fixing ring.
Further, an inserting spring connected with the inserting block is welded on the inner wall of the cavity, and the inserting spring is sleeved outside the pull rod.
Further, a sealing groove is formed in the outer wall of the top of the lower shell, and a sealing gasket clamped in the sealing groove is welded on the inner wall of the top of the upper shell.
Furthermore, grooves are formed in the inner wall of the upper shell and the outer wall of one side of the sector plate, and protective springs are welded on the inner walls of the two grooves in a visual mode.
In the technical scheme, the miniaturized pressure sensor provided by the utility model has the advantages that (1) the electrical interface, the gasket, the anti-reflection circuit board, the power circuit board, the signal conditioning circuit board, the first board-level electrical connector and the second board-level electrical connector are arranged, the anti-reflection circuit board is connected with the power circuit board through the first board-level electrical connector, the power circuit board is connected with the signal conditioning circuit board through the second board-level electrical connector, no lead wire is arranged inside, and further, the space of a wire or a soft flat cable is not required to be reserved, the volume of the pressure sensor can be integrally reduced, miniaturization is realized, no lead wire is connected, no welding point is arranged between the wire or the soft flat cable and a part, and the problem that the welding point is easy to break is further avoided; (2) The pull rod is pulled to drive the insert block to move out of the slot through the upper shell, the lower shell, the fixing ring, the insert block, the slot, the sealing groove and the sealing gasket, so that the upper shell and the lower shell are conveniently separated, and further, the parts in the upper shell are conveniently maintained; (3) Through recess and protection spring that sets up, when the epitheca received the extrusion, perhaps when this pressure sensor dropped from the eminence, the elasticity of protection spring can cushion the extrusion or the collision force that the epitheca received, can prevent that the inside part of epitheca from damaging, has played the effect of protection and protection to the inside part of epitheca.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
Fig. 1 is a schematic perspective view of a miniaturized pressure sensor according to an embodiment of the present utility model.
FIG. 2 is a schematic diagram of the internal structure provided by an embodiment of a miniaturized pressure sensor.
FIG. 3 is a schematic view of the internal structure of a cavity provided by an embodiment of a miniaturized pressure sensor according to the present utility model.
Fig. 4 is a schematic view of a protection spring provided by an embodiment of a miniaturized pressure sensor according to the present utility model.
Reference numerals illustrate:
1. an upper case; 2. a sector plate; 3. an electrical interface; 4. a gasket; 5. an anti-reflection circuit board; 6. a power circuit board; 7. a signal conditioning circuit board; 8. a first board-level electrical connector; 9. a second board level electrical connector; 10. a pressure sensitive member; 11. a lower case; 12. a fixing ring; 13. inserting blocks; 14. a slot; 15. sealing grooves; 16. a sealing gasket; 17. a groove; 18. a protective spring; 19. a cavity; 20. a pull rod; 21. a plug spring; 22. and (5) stitching.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1-4, the miniaturized pressure sensor provided by the embodiment of the utility model comprises an upper shell 1 and a lower shell 11, wherein a sector plate 2 is welded on the inner wall of the top of the upper shell 1, a gasket 4, an anti-reflection circuit board 5, a power circuit board 6 and a signal conditioning circuit board 7 are sequentially arranged on the outer walls of one side of the two sector plates 2 from bottom to bottom, a first board-level electric connector 8 is connected between the anti-reflection circuit board 5 and the power circuit board 6, the power circuit board 6 and the signal conditioning circuit board 7 are connected with a second board-level electric connector 9, a pressure sensitive element 10 is welded at the bottom end of the lower shell 11, an electric interface 3 is welded on the inner wall of the upper shell 1, pins 22 are arranged on the outer wall of the bottom of the electric interface 3, the pins 22 are welded on the anti-reflection circuit board 5, the pins 22 penetrate through the inside the gasket 4, and the top end of the pressure sensitive element 10 is welded on the outer wall of the bottom of the signal conditioning circuit board 7.
The utility model provides a miniaturized pressure sensor, which comprises an upper shell 1 and a lower shell 11, wherein a sector plate 2 is welded on the inner wall of the top of the upper shell 1, a gasket 4, an anti-reflection circuit board 5, a power circuit board 6 and a signal conditioning circuit board 7 are sequentially arranged on the outer wall of one side of the two sector plates 2 from bottom to bottom, a first board-level electric connector 8 is connected between the anti-reflection circuit board 5 and the power circuit board 6, the power circuit board 6 and the signal conditioning circuit board 7 are connected with a second board-level electric connector 9, a pressure sensitive element 10 is welded at the bottom end of the lower shell 11, an electric interface 3 is welded on the inner wall of the upper shell 1, a stitch 22 is arranged on the outer wall of the bottom of the electric interface 3, the stitch 22 is welded on the anti-reflection circuit board 5, the stitch 22 penetrates through the inside of the gasket 4, the top end of the pressure sensitive element 10 is welded on the outer wall of the bottom of the signal conditioning circuit board 7, the anti-reflection circuit board 5 and the power circuit board 6 are connected through the first board-level electric connector 8, the power circuit board 6 and the signal conditioning circuit board 7 are connected through the second board-level electric connector 9, no lead wires are connected inside the second board-level electric connector 9, no lead wires are required, no lead wire connection is required, no lead wire size is caused, no reduction is caused, and no lead wire connection is realized, and no size reduction is realized at the same time.
The beneficial effects are that: the anti-reverse circuit board 5 and the power circuit board 6 are connected through the first board-level electric connector 8, the power circuit board 6 and the signal conditioning circuit board 7 are connected through the second board-level electric connector 9, no lead wire is connected inside, and therefore the space of a wire or a soft flat cable is not required to be reserved, the volume of the pressure sensor can be reduced wholly, miniaturization is achieved, no lead wire is connected, no wire or welding point is arranged between the soft flat cable and a part, and the problem that the welding point is easy to break is further avoided.
In one embodiment provided by the utility model, as shown in fig. 2 and 3, a fixed ring 12 is welded at the top of the outer wall of the lower shell 11, a plurality of cavities 19 are formed in the fixed ring 12, the inside of each cavity 19 is slidably connected with an insert 13, and the cavities 19 can play a role in guiding the insert 13.
In another embodiment provided by the utility model, as shown in fig. 2 and 3, a plurality of slots 14 are formed in the bottom of the outer wall of the upper shell 1, and the inserting blocks 13 are inserted into the slots 14, so that the upper shell 1 and the lower shell 11 can be connected and assembled.
In still another embodiment, as shown in fig. 1, 2 and 3, a pull rod 20 is welded on the outer wall of one side of the insert 13, and the pull rod 20 extends to the outside of the fixed ring 12, so that the insert 13 can be pulled to move by the pull rod 20.
In one embodiment of the present utility model, as shown in fig. 2 and 3, an insertion spring 21 connected with the insertion block 13 is welded on the inner wall of the cavity 19, and the insertion spring 21 is sleeved outside the pull rod 20, and the elastic force of the insertion spring 21 can push the insertion block 13 to be inserted into the slot 14.
In another embodiment provided by the utility model, as shown in fig. 2 and 3, a sealing groove 15 is formed on the outer wall of the top of the lower shell 11, and a sealing gasket 16 clamped in the sealing groove 15 is welded on the inner wall of the top of the upper shell 1, so that the tightness between the upper shell 1 and the lower shell 11 can be ensured.
In still another embodiment provided by the utility model, as shown in fig. 2 and fig. 4, grooves 17 are formed on the inner wall of the upper shell 1 and the outer wall of one side of the sector plate 2, and protective springs 18 are welded on the inner walls of the two corresponding grooves 17, so that the elastic force of the protective springs 18 can buffer the collision force or extrusion force received by the upper shell 1, and further, the pressure sensor can protect components when being dropped carelessly or extruded.
Working principle: when the miniaturized pressure sensor is used, the anti-reflection circuit board 5 and the power circuit board 6 are connected through the first board-level electric connector 8, the power circuit board 6 is connected with the signal conditioning circuit board 7 through the second board-level electric connector 9, no lead is arranged inside, the space of a wire or a soft flat cable is not required to be reserved, the volume of the pressure sensor can be reduced wholly, miniaturization is achieved, welding spots between the wire or the soft flat cable and parts are not arranged, the problem that the welding spots are easy to break is solved, when the pressure sensor is carelessly dropped or extruded, the elastic force of the protection spring 18 can buffer the collision force or extrusion force received by the upper shell 1, further, the parts inside the upper shell 1 can be prevented from being broken or extruded, the protection effect is achieved on the parts, when the parts inside the upper shell 1 are damaged, the pull rod 20 is pulled to drive the plug 13 to move out from the inside of the slot 14, the upper shell 1 and the lower shell 11 can be separated, and the parts inside the upper shell 1 are convenient to maintain.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (7)
1. The utility model provides a miniaturized pressure sensor, includes epitheca (1) and inferior valve (11), its characterized in that, the inner wall welding at epitheca (1) top has sector plate (2), two from down having set gradually liner (4), anti-circuit board (5), power supply circuit board (6), signal conditioning circuit board (7) on the outer wall of sector plate (2) one side, and be connected with first board level electric connector (8) between anti-circuit board (5) and power supply circuit board (6), power supply circuit board (6) are connected with second board level electric connector (9) with signal conditioning circuit board (7), the bottom welding of inferior valve (11) has pressure sensitive part (10), and the welding has electric interface (3) on the inner wall of epitheca (1), be provided with on the outer wall of electric interface (3) bottom, and stitch anti-circuit board (5) are welded, inside that anti-circuit board (22) are sensitive to liner (4), the welding of pressure sensitive part (10) is on the outer wall of signal conditioning circuit board (7) bottom.
2. The miniaturized pressure sensor according to claim 1, characterized in that the top of the outer wall of the lower shell (11) is welded with a fixed ring (12), a plurality of cavities (19) are formed in the fixed ring (12), and plug blocks (13) are slidably connected in the cavities (19).
3. A miniaturized pressure sensor according to claim 2, characterized in that the bottom of the outer wall of the upper shell (1) is provided with a plurality of slots (14), and the plug blocks (13) are inserted into the slots (14).
4. A miniaturized pressure transmitter according to claim 3, characterized in that the outer wall of the plug (13) is welded with a tie rod (20), and that the tie rod (20) extends outside the fixing ring (12).
5. A miniaturized pressure transmitter according to claim 4, characterized in that the inner wall of the cavity (19) is welded with a plug spring (21) connected with the plug (13), and the plug spring (21) is sleeved outside the pull rod (20).
6. The miniaturized pressure sensor according to claim 5, characterized in that the outer wall of the top of the lower shell (11) is provided with a sealing groove (15), and the inner wall of the top of the upper shell (1) is welded with a sealing gasket (16) clamped inside the sealing groove (15).
7. A miniaturized pressure sensor according to claim 1, characterized in that grooves (17) are formed on the inner wall of the upper shell (1) and on the outer wall of one side of the sector plate (2), and protective springs (18) are welded on the inner walls of the two grooves (17) in a visual manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321436001.1U CN220063232U (en) | 2023-06-06 | 2023-06-06 | Miniaturized pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321436001.1U CN220063232U (en) | 2023-06-06 | 2023-06-06 | Miniaturized pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220063232U true CN220063232U (en) | 2023-11-21 |
Family
ID=88758788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321436001.1U Active CN220063232U (en) | 2023-06-06 | 2023-06-06 | Miniaturized pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220063232U (en) |
-
2023
- 2023-06-06 CN CN202321436001.1U patent/CN220063232U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |