CN201307045Y - Pressure detecting sensor - Google Patents
Pressure detecting sensor Download PDFInfo
- Publication number
- CN201307045Y CN201307045Y CNU2008202179270U CN200820217927U CN201307045Y CN 201307045 Y CN201307045 Y CN 201307045Y CN U2008202179270 U CNU2008202179270 U CN U2008202179270U CN 200820217927 U CN200820217927 U CN 200820217927U CN 201307045 Y CN201307045 Y CN 201307045Y
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- CN
- China
- Prior art keywords
- flexible sheet
- magnetic conduction
- magnet steel
- cavity
- detection sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to a sensor, in particular to a pressure detecting sensor. In accordance with the technical scheme provided by the utility model, a connecting sleeve is arranged on a base. The pressure detecting sensor is characterized in that the joint part of the base and the connecting sleeve is provided with a non-magnetic elastic diaphragm, and an output cavity is arranged at the upper part of the connecting sleeve; an acquisition cavity is arranged at the lower part of the connecting sleeve, and a linear programmable Hall device is arranged in the output cavity; magnetic steel which can be driven by the non-magnetic elastic diaphragm to move in the acquisition cavity from top to bottom is arranged in the acquisition cavity, and the lower end of the magnetic steel is contacted with the non-magnetic elastic diaphragm; and an elastic body for allowing the lower end surface of the magnetic steel to be contacted with the non-magnetic elastic diaphragm is arranged at the upper part of the magnetic steel. The utility model can improve the reliability and stability of products.
Description
Technical field
The utility model relates to a kind of sensor, specifically a kind of press detection sensor.
Background technology
Sensor is mainly used in the pressure detection of building water system, automobile engine oil pressure, brake pressure of automobile and industrial automation.Traditional pressure-detecting device comprises silicon piezoresistance type pressure sensor, ceramic-type pressure transducer or capacitance pressure transducer,, the common feature of these sensors is: the structure more complicated, be difficult to processing, to the requirement of temperature compensation and circuit all than higher, cause cost than higher, usually all in one in the thousands of units that arrive up to a hundred.
The utility model content
The purpose of this utility model is to design a kind of press detection sensor, to improve reliability of products and stability.
Technical scheme according to the utility model provides has adapter sleeve on pedestal, it is characterized in that: non-magnetic conduction flexible sheet is set in the joint portion of pedestal and adapter sleeve; The top of described adapter sleeve is output cavity, and the bottom is an acquisition cavity; Linear programmable hall device is set in described output cavity; Being provided with in described acquisition cavity can be under the drive of non-magnetic conduction flexible sheet, the magnet steel that moves up and down in acquisition cavity; The lower end of described magnet steel contacts with described non-magnetic conduction flexible sheet, the elastic body that the top of magnet steel is provided for making the lower surface of magnet steel to contact with non-magnetic conduction flexible sheet.
Described elastic body is the spring that is socketed in magnet steel top, and the upper end of described spring contacts with the upper surface of acquisition cavity.Between the edge of non-magnetic conduction flexible sheet and pedestal, O-ring seal is set.Isolate mutually between output cavity in the described adapter sleeve and acquisition cavity, the air hole of acquisition cavity is set on adapter sleeve.Near the projection that annular is set on the outer wall of its lower end, the lower end of described spring contacts with annular projection at described magnet steel.
Outside at adapter sleeve is provided with overcoat.Passage is set in pedestal, forms diaphragm chamber between the upper end of pedestal and non-magnetic conduction flexible sheet, described passage is communicated with diaphragm chamber.In described output cavity control circuit board is set, described linear programmable hall device is electrically connected with control circuit board.
The utility model patent provides single power supply, the plastics magnet steel of non-magnetic conduction flexible sheet, injection moulding, shift length and the proportional relational structure of pressure with the spring composition, be pressed into shaping through special-purpose press, in the demarcation that is contained in temperature compensated back of hall device in the printed board and output area, just become low cost again, but the data typing, be convenient to mass-produced novel pressure transducer, thereby greatly improve reliability of products.And stability.
The utility model patent also has characteristics such as weatherability, anti-pollution except that above-mentioned advantage, thereby in use has more reliable, more stable advantage.
Description of drawings
Fig. 1 is a structural drawing of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Embodiment
As shown in the figure: adapter sleeve 6 is arranged on pedestal 1, non-magnetic conduction flexible sheet 3 is set in the joint portion of pedestal 1 and adapter sleeve 6; The top of described adapter sleeve 6 is output cavity 9, and the bottom is an acquisition cavity 10; Linear programmable hall device 8 is set in described output cavity 9; Setting can be under the drive of non-magnetic conduction flexible sheet 3 in described acquisition cavity 10, the magnet steel 4 that moves up and down in acquisition cavity 10; The lower end of described magnet steel 4 contacts with described non-magnetic conduction flexible sheet 3, the elastic body that the top of magnet steel 4 is provided for making the lower surface of magnet steel 4 to contact with non-magnetic conduction flexible sheet 3.During work, gas from pedestal 1 enter non-magnetic conduction flexible sheet 3 below, oppress non-magnetic conduction flexible sheet 3, it is upwards dilatational strain of non-magnetic conduction flexible sheet 3, thereby promotion magnet steel 4 moves up to make between magnet steel 4 and the linear programmable hall device 8 and produces displacement, under the magnetic line of force effect of magnet steel 4, linear programmable hall device 8 can perceive the displacement of magnet steel 4, and described displacement is become electric signal outwards carries.
Described elastic body is the spring 5 that is socketed in magnet steel 4 tops, and the upper end of described spring 5 contacts with the upper surface of acquisition cavity 10.Described elastic body mainly plays reset response, and produces a precompression by 4 pairs of non-magnetic conduction flexible sheets 3 of magnet steel, has only when described fluid can overcome the precompression that sets, and described non-magnetic conduction flexible sheet 3 could be out of shape, and promotion magnet steel 4 moves.
Between the edge of non-magnetic conduction flexible sheet 3 and pedestal 1, O-ring seal 2 is set.In order to avoid fluid escapes when oppressing non-magnetic conduction flexible sheet 3, have influence on by the accuracy of measuring pressure.
10 of output cavity 9 in the described adapter sleeve 6 and acquisition cavities are isolated mutually, do not disturb mutually.At this moment the air hole 15 of acquisition cavity 10 should be set on adapter sleeve 6, so that non-magnetic conduction flexible sheet 3 is when upwards being out of shape, the gases in the output cavity 9 can in time be discharged to the outside and communicate with atmosphere, guarantee tonometric accuracy.
Near the projection 12 that annular is set on the outer wall of its lower end, the lower end of described spring 5 contacts with annular projection 12, so that the lower end of spring 5 is located reliably at described magnet steel 4.
Outside at adapter sleeve 6 is provided with the overcoat of being convenient to install 11.
In described output cavity 9 control circuit board 7 is set, described linear programmable hall device 8 is electrically connected with control circuit board 7.On control circuit board 7, arrange control circuit, after the signal that linear programmable hall device 8 obtains is defeated by control circuit, handle by control circuit.
During installation, load onto O RunddichtringO 2 on special plastic base 1, non-magnetic conduction flexible sheet 3 on last refilling on flexible sheet 3, is installed the plastics magnet steel 4 of special shape, the suitable spring 5 of packing into more again on this plastics magnet steel 4 then.When adapter sleeve 6 was pressed into the pedestal 1 with snap close, the inner structure of pressure transducer was just accused and is finished.The output of the electric signal of pressure transducer is to load onto printed board (control circuit board 7) in the another one output cavity 9 in adapter sleeve 6, realizes after programming with linear programmable hall device 8.
Claims (8)
1, a kind of press detection sensor comprises pedestal (1) and is connected in the top adapter sleeve (6) of pedestal (1) that it is characterized in that: the joint portion at pedestal (1) and adapter sleeve (6) is provided with non-magnetic conduction flexible sheet (3); The top of described adapter sleeve (6) is output cavity (9), and the bottom is acquisition cavity (10); Linear programmable hall device (8) is set in described output cavity (9); Setting can be under the drive of non-magnetic conduction flexible sheet (3) in described acquisition cavity (10), the magnet steel (4) that moves up and down in acquisition cavity (10); The lower end of described magnet steel (4) contacts with described non-magnetic conduction flexible sheet (3), the elastic body that the top of magnet steel (4) is provided for making the lower surface of magnet steel (4) to contact with non-magnetic conduction flexible sheet (3).
2, press detection sensor as claimed in claim 1 is characterized in that: described elastic body is for being socketed in the spring (5) on magnet steel (4) top, and the upper end of described spring (5) contacts with the upper surface of acquisition cavity (10).
3, press detection sensor as claimed in claim 1 is characterized in that: between the edge of non-magnetic conduction flexible sheet (3) and pedestal (1) O-ring seal (2) is set.
4, press detection sensor as claimed in claim 1 is characterized in that: isolate mutually between output cavity (9) in the described adapter sleeve (6) and acquisition cavity (10), the air hole (15) of acquisition cavity (10) is set on adapter sleeve (6).
5, press detection sensor as claimed in claim 2 is characterized in that: near the projection (12) that annular is set on the outer wall of its lower end, the lower end of described spring (5) contacts with annular projection (12) at described magnet steel (4).
6, press detection sensor as claimed in claim 1 is characterized in that: in the outside of adapter sleeve (6) overcoat (11) is set.
7, press detection sensor as claimed in claim 1 is characterized in that: passage (14) is set in pedestal (1), forms diaphragm chamber (13) between the upper end of pedestal (1) and non-magnetic conduction flexible sheet (3), described passage (14) is communicated with diaphragm chamber (13).
8, press detection sensor as claimed in claim 1 is characterized in that: control circuit board (7) is set in described output cavity (9), and described linear programmable hall device (8) is electrically connected with control circuit board (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202179270U CN201307045Y (en) | 2008-11-14 | 2008-11-14 | Pressure detecting sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202179270U CN201307045Y (en) | 2008-11-14 | 2008-11-14 | Pressure detecting sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201307045Y true CN201307045Y (en) | 2009-09-09 |
Family
ID=41099509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202179270U Expired - Fee Related CN201307045Y (en) | 2008-11-14 | 2008-11-14 | Pressure detecting sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201307045Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107485913A (en) * | 2016-06-13 | 2017-12-19 | 汉斯萨塞拉思有限责任两合公司 | Filter assemblies |
| CN108414132A (en) * | 2018-06-04 | 2018-08-17 | 陈荣国 | A kind of Fluid pressure detection sensor |
| CN110243530A (en) * | 2019-07-23 | 2019-09-17 | 浙江耀达智能科技股份有限公司 | A kind of novel pressure sensor |
| CN110763391A (en) * | 2019-11-01 | 2020-02-07 | 苏州柯尔特测控技术有限公司 | Open type anti-blocking pressure sensor and washing machine and electric cooker with same |
-
2008
- 2008-11-14 CN CNU2008202179270U patent/CN201307045Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107485913A (en) * | 2016-06-13 | 2017-12-19 | 汉斯萨塞拉思有限责任两合公司 | Filter assemblies |
| CN108414132A (en) * | 2018-06-04 | 2018-08-17 | 陈荣国 | A kind of Fluid pressure detection sensor |
| CN110243530A (en) * | 2019-07-23 | 2019-09-17 | 浙江耀达智能科技股份有限公司 | A kind of novel pressure sensor |
| CN110763391A (en) * | 2019-11-01 | 2020-02-07 | 苏州柯尔特测控技术有限公司 | Open type anti-blocking pressure sensor and washing machine and electric cooker with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuxi Jinglei Electronic Co., Ltd. Assignor: Jiangsu Jewel Technology Group Co., Ltd. Contract record no.: 2010320000895 Denomination of utility model: Pressure detecting sensor Granted publication date: 20090909 License type: Exclusive License Record date: 20100709 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20141114 |
|
| EXPY | Termination of patent right or utility model |