CN208012800U - More pin capacitance formula pressure sensors - Google Patents
More pin capacitance formula pressure sensors Download PDFInfo
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- CN208012800U CN208012800U CN201820311572.5U CN201820311572U CN208012800U CN 208012800 U CN208012800 U CN 208012800U CN 201820311572 U CN201820311572 U CN 201820311572U CN 208012800 U CN208012800 U CN 208012800U
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- electrode sheet
- insulating base
- pin
- pressure sensors
- plane
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- 238000009413 insulation Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 5
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 230000006698 induction Effects 0.000 abstract description 4
- 238000003466 welding Methods 0.000 abstract description 4
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a kind of more pin capacitance formula pressure sensors, including insulating base, first electrode sheet, second electrode sheet.First electrode sheet is mounted in the first plane of insulating base.It is provided with air inlet in second plane of insulating base；Air inlet penetrates through insulating base.Second electrode sheet is in the gap between first electrode sheet and insulating base, the air inlet of second electrode sheet sealed insulation seat.The edge of first electrode sheet is provided at least three first pins.The edge of second electrode sheet is provided at least one second pin.Three of first electrode on piece are in after the first pin being spacedly distributed is welded in PC plate, and welding is firm, has assumed responsibility for the stress of the second electrode on piece second pin of induction effect, avoid second electrode sheet and damaged or deformation is occurred by external force；By being intervally arranged for each pin, shielding case can be played the role of, improve the jamproof ability of capacitance pressure transducer,.
Description
Technical field
The utility model is related to sensor technical field more particularly to a kind of more pin capacitance formula pressure sensors.
Background technology
Existing capacitance pressure transducer, is only there are two pin (pin), each pin on two electrode slices, each electrode
Piece is welded on by pin on pcb board.One of electrode slice needs to be made in order to the variation of better induction pressure
It is thin.Capacitance pressure transducer, is supported and fixed on by two pins on pcb board；In this way, during processing or use, it is thin
Electrode slice after pin is by outer force effect, damaged or deformation occurs very much, causes linear unstable.In addition, two pins
Capacitance pressure transducer, interference free performance is poor, needs to increase a shielding case in outside.
Utility model content
In view of the deficiencies of the prior art, the utility model proposes a kind of more pin capacitance formula pressure sensors, the capacitances
Three of the first electrode on piece of formula pressure sensor are in after the first pin being spacedly distributed is welded in PC plate, and welding is steady
Gu having assumed responsibility for the stress of the second electrode on piece second pin of induction effect, solves second electrode sheet and occurred by external force
The problem of damaged or deformation；In addition, being intervally arranged by each pin, can play the role of shielding case, solve condenser type
The problem of pressure sensor poor anti jamming capability.
To achieve the goals above, technical solutions of the utility model are as follows：
A kind of more pin capacitance formula pressure sensors, including insulating base, first electrode sheet, second electrode sheet.First electrode
Piece is mounted in the first plane of insulating base.Insulating base is provided with air inlet in the second plane of the first plane；Air inlet
Mouth perforation insulating base.There is gap between first electrode sheet and insulating base.Second electrode sheet be located at first electrode sheet and insulating base it
Between gap in, second electrode sheet be mounted on insulating base the first plane on；Also, the air inlet of second electrode sheet sealed insulation seat
Mouthful.First electrode sheet is parallel with second electrode sheet.The edge of first electrode sheet is provided at least three first pins.Second
The edge of electrode slice is provided at least one second pin.There is interval between each first pin of first electrode on piece.
Further, each first pin of first electrode on piece is in and is spacedly distributed.
Further, second electrode sheet is made of beryllium copper material.
Further, insulating base is made of plastic material.
Further, insulating base, first electrode sheet, second electrode sheet difference are in the form of annular discs.
Further, air inlet is arranged at the center of the second plane of insulating base.
Further, several limited posts are provided in the first plane of insulating base.First electrode on piece be provided with it is several with
The compatible limit hole of limited post.Limited post on insulating base is inserted into the corresponding limit hole of first electrode on piece.
Further, several first electrode sheet installation positions are provided in the first plane of insulating base.Each first electrode sheet peace
Dress position is spacedly distributed.First electrode sheet is fixed on the first electrode sheet installation position of insulating base.
Further, it is respectively arranged with screw hole on each first electrode sheet installation position.First electrode on piece is provided with several
Screw through-hole compatible with each screw hole.First electrode sheet is fixed on to the first electrode sheet installation position of insulating base by screw
On.
Further, the first pin is integrally formed with first electrode sheet.Second pin is integrally formed with second electrode sheet.
The beneficial effects of the utility model：
Three of the first electrode on piece of the capacitance pressure transducer, are in that the first pin being spacedly distributed is welded on PC
After on plate, welding is firm, has assumed responsibility for the stress of the second electrode on piece second pin of induction effect, has avoided second electrode sheet
Damaged or deformation is occurred by external force；By being intervally arranged for each pin, shielding case can be played the role of, improve condenser type
The jamproof ability of pressure sensor；The capacitance pressure transducer, manufacture craft is simple, unit price is at low cost.
Description of the drawings
Fig. 1 is the side structure schematic view of the more pin capacitance formula pressure sensors of the utility model.
Fig. 2 is the positive structure diagram of first electrode sheet 2 in Fig. 1.
Wherein, the reference numeral of Fig. 1 to Fig. 2 is：Insulating base 1, first electrode sheet 2；Air inlet 11, first electrode sheet installation
Position 12；First pin 21, limit hole 22, screw through-hole 23；Second pin 31.
Specific implementation mode
With reference to the accompanying drawings and examples, the utility model is expanded on further.
As shown in Figs. 1-2, a kind of more pin capacitance formula pressure sensors, including insulating base 1, the 2, second electricity of first electrode sheet
Pole piece.
First electrode sheet 2 is mounted in the first plane of insulating base 1.The second plane backwards to the first plane of insulating base 1
On be provided with air inlet 11；Air inlet 11 penetrates through insulating base 1.There is gap between first electrode sheet 2 and insulating base 1.Second electrode
In gap between first electrode sheet 2 and insulating base 1, second electrode sheet is mounted in the first plane of insulating base 1 piece；And
And the air inlet 11 of second electrode sheet sealed insulation seat 1.First electrode sheet 2 is parallel with second electrode sheet.First electrode sheet 2
Edge be provided at least three first pins 21.The edge of second electrode sheet is provided at least one second pin 31.
Each first pin 21 in first electrode sheet 2 is in be spacedly distributed.
First pin 21 is integrally formed with first electrode sheet 2.Second pin 31 is integrally formed with second electrode sheet.
Second electrode sheet is used for incuding the air pressure change of air inlet 11, thin therefore, it is necessary to be made.Preferably, the second electricity
Pole piece is beryllium copper piece.Beryllium copper is the copper alloy using beryllium as main alloy element, also referred to as beryllium-bronze.It is performance in copper alloy
Best advanced resilient material has very high intensity, elasticity, hardness, fatigue strength, elastic hysteresis small, anti-corrosion, wear-resisting, resistance to
Cold, highly conductive, nonmagnetic, impact does not generate a series of excellent physics such as spark, chemistry and mechanical property.
Preferably, insulating base 1 is made of hard plastic material.
Specifically, insulating base 1, first electrode sheet 2, second electrode sheet difference are in the form of annular discs.The setting of air inlet 11 is being insulated
At the center of 1 second plane of seat.
Specifically, several limited posts are provided in the first plane of insulating base 1.Be provided in first electrode sheet 2 it is several with
The compatible limit hole of limited post 22.Limited post on insulating base 1 is inserted into the corresponding limit hole 22 in first electrode sheet 2,
It is mounted on insulating base 1 convenient for first electrode sheet 2.
Preferably, there are two limited posts, it is separately positioned on the edge of insulating base 1, and position is opposite.
Specifically, several first electrode sheet installation positions 12 are provided in the first plane of insulating base 1.Each first electrode sheet peace
Dress position 12 is spacedly distributed.It is provided with screw hole on first electrode sheet installation position 12.Be provided in first electrode sheet 2 it is several with it is each
The compatible screw through-hole of screw hole 23.First electrode sheet 2 is fixed on to the first electrode sheet installation position of insulating base 1 by screw
On 12.
Operation principle：
Second electrode sheet incudes the air pressure change of air inlet 11, and elastic deformation occurs, to change second electrode sheet
The capacitance of the distance between first electrode sheet 2, second electrode sheet and first electrode sheet 2 changes immediately, by acquisition
Pressure signal is converted into electric signal.Each first pin 21 in first electrode sheet 2 is equally spaced to be welded in PC plate, and welding is steady
Gu assuming responsibility for the stress of second pin 31 in second electrode sheet 3, avoids second electrode sheet and occurred damaged by external force or become
Shape.In addition, being intervally arranged by pin, can play the role of shielding case, it is anti-interference to improve capacitance pressure transducer,
Ability, the verification tested in this effect reality.The capacitance pressure transducer, manufacture craft is simple, monovalent cost
Low, system is the resolution ratio that can reach 16BIT without A/D converter, is widely used in electronic sphygmomanometer and other response pressure models
The pressure gauge enclosed.
Above-described is only preferred embodiments of the present invention, and the utility model is not limited to above example.It can
With understand, those skilled in the art directly export or associate under the premise of not departing from the basic conception of the utility model its
It is improved and variation is considered as being included within the scope of protection of this utility model.
Claims (10)
1. a kind of more pin capacitance formula pressure sensors, it is characterised in that：
Including insulating base (1), first electrode sheet (2), second electrode sheet；
The first electrode sheet (2) is mounted in the first plane of insulating base (1)；
The insulating base (1) is provided with air inlet (11) in the second plane of the first plane；The air inlet (11) is passed through
Logical insulating base (1)；
There is gap between the first electrode sheet (2) and insulating base (1)；
The second electrode sheet is located in the gap between first electrode sheet (2) and insulating base (1)；The second electrode sheet installation
In the first plane of insulating base (1)；Also, the air inlet (11) of the second electrode sheet sealed insulation seat (1)；
The first electrode sheet (2) is parallel with the second electrode sheet；
The edge of the first electrode sheet (2) is provided at least three first pins (21)；
The edge of the second electrode sheet is provided at least one second pin (31)；
There is interval between each first pin (21) on the first electrode sheet (2).
2. more pin capacitance formula pressure sensors according to claim 1, it is characterised in that：
Each first pin (21) on the first electrode sheet (2) is in be spacedly distributed.
3. more pin capacitance formula pressure sensors according to claim 1, it is characterised in that：
The second electrode sheet is made of beryllium copper material.
4. more pin capacitance formula pressure sensors according to claim 1, it is characterised in that：
The insulating base (1) is made of plastic material.
5. more pin capacitance formula pressure sensors according to claim 1, it is characterised in that：
The insulating base (1), first electrode sheet (2), second electrode sheet difference are in the form of annular discs.
6. more pin capacitance formula pressure sensors according to claim 5, it is characterised in that：
The air inlet (11) is arranged at the center of (1) second plane of insulating base.
7. more pin capacitance formula pressure sensors according to claim 1, it is characterised in that：
It is provided with several limited posts in first plane of the insulating base (1)；
Several limit holes (22) compatible with the limited post are provided on the first electrode sheet (2)；
The limited post on the insulating base (1) is inserted into the corresponding limit hole (22) in first electrode sheet (2).
8. more pin capacitance formula pressure sensors according to claim 1, it is characterised in that：
Several first electrode sheet installation positions (12) are provided in first plane of the insulating base (1)；
Each first electrode sheet installation position (12) is spacedly distributed；
The first electrode sheet (2) is fixed on each first electrode sheet installation position (12) of insulating base (1).
9. more pin capacitance formula pressure sensors according to claim 8, it is characterised in that：
It is respectively arranged with screw hole on each first electrode sheet installation position (12)；
Several screw through-holes (23) compatible with each screw hole are provided on the first electrode sheet (2)；
First electrode sheet (2) is fixed on each first electrode sheet installation position (12) of insulating base (1) by screw.
10. more pin capacitance formula pressure sensors according to claim 1, it is characterised in that：
First pin (21) is integrally formed with first electrode sheet (2)；
The second pin (31) is integrally formed with the second electrode sheet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017216047990 | 2017-11-27 | ||
| CN201721604799 | 2017-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208012800U true CN208012800U (en) | 2018-10-26 |
Family
ID=63888274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820311572.5U Active CN208012800U (en) | 2017-11-27 | 2018-03-07 | More pin capacitance formula pressure sensors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208012800U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023005822A1 (en) * | 2021-07-26 | 2023-02-02 | 芯海科技（深圳）股份有限公司 | Pressure sensor module and electronic device |
-
2018
- 2018-03-07 CN CN201820311572.5U patent/CN208012800U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023005822A1 (en) * | 2021-07-26 | 2023-02-02 | 芯海科技（深圳）股份有限公司 | Pressure sensor module and electronic device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518100, Building T3, Haigu Science and Technology Building, Luozhu Community, Shiyan Street, Bao'an District, Shenzhen City, Guangdong Province, China, 3-502 Patentee after: SHENZHEN MEDEK BIOMEDICAL CO.,LTD. Country or region after: China Address before: 518000 East 5th Floor, Building B6, Tianrui Industrial Park, Fuhai Avenue, Fuyong Street, Bao'an District, Shenzhen, Guangdong Province Patentee before: SHENZHEN MEDEK BIOMEDICAL CO.,LTD. Country or region before: China |
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| CP03 | Change of name, title or address |