CN101419107A - Pressure detecting sensor - Google Patents
Pressure detecting sensor Download PDFInfo
- Publication number
- CN101419107A CN101419107A CNA2008102353106A CN200810235310A CN101419107A CN 101419107 A CN101419107 A CN 101419107A CN A2008102353106 A CNA2008102353106 A CN A2008102353106A CN 200810235310 A CN200810235310 A CN 200810235310A CN 101419107 A CN101419107 A CN 101419107A
- Authority
- CN
- China
- Prior art keywords
- detection sensor
- flexible sheet
- magnetic conduction
- magnet steel
- cavity
- 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.)
- Pending
Links
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to a sensor, in particular to a pressure detection sensor. The pressure detection sensor adopts the technical proposal that a connecting sleeve is arranged on a base. The pressure detection sensor is characterized in that a non-magnetic conductive elastic membrane is arranged on a joint of the base and the connecting sleeve; the upper part of the connecting sleeve is provided with an output cavity and the lower part of the connecting sleeve is provided with a collecting cavity; a linear programmable Hall device is arranged inside the output cavity; a magnetic steel which can be driven by the non-magnetic conductive elastic membrane to move up and down in the collecting cavity is arranged inside the collecting cavity; and the lower end of the magnetic steel contacts the non-magnetic conductive elastic membrane, and the upper part of the magnetic steel is provided with an elastomer which is used for making the lower end face of the magnetic steel contact the non-magnetic conductive elastic membrane. The pressure detection sensor can improve the reliability and the stability of the product.
Description
Technical field
The present invention 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.
Summary of the invention
The objective of the invention is to design a kind of press detection sensor, to improve reliability of products and stability.
According to technical scheme provided by the invention, adapter sleeve is arranged 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.
Patent of the present invention 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.
Patent of the present invention 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 invention.
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.
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.During work, fluid enters in the diaphragm chamber 13 through passage 14, and non-magnetic conduction flexible sheet 3 is exerted pressure.
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 |
|---|---|---|---|
| CNA2008102353106A CN101419107A (en) | 2008-11-14 | 2008-11-14 | Pressure detecting sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102353106A CN101419107A (en) | 2008-11-14 | 2008-11-14 | Pressure detecting sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101419107A true CN101419107A (en) | 2009-04-29 |
Family
ID=40630006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102353106A Pending CN101419107A (en) | 2008-11-14 | 2008-11-14 | Pressure detecting sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101419107A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832785A (en) * | 2010-04-12 | 2010-09-15 | 杭州鑫芯电子有限公司 | Regulatable Hall effect sensor |
| CN102252799A (en) * | 2011-06-03 | 2011-11-23 | 合肥工业大学 | Membrane type hydrostatic pressure sensor |
| CN102410913A (en) * | 2011-07-26 | 2012-04-11 | 北京鑫禾丰医疗技术有限公司 | Blockage detection device |
| CN102954853A (en) * | 2011-08-22 | 2013-03-06 | 关隆股份有限公司 | Pressure sensor and pressure sensing circuit thereof |
| CN103282755A (en) * | 2010-11-29 | 2013-09-04 | 马夸特机械电子有限责任公司 | Sensor |
| CN103308243A (en) * | 2012-03-05 | 2013-09-18 | 伊顿公司 | Magnetically coded temperature and pressure detection apparatus |
| CN106482779A (en) * | 2016-02-22 | 2017-03-08 | 罗托克执行器有限公司 | A kind of flange integrating device of use sensor acquisition pipeline medium parameter |
| CN107110727A (en) * | 2014-10-07 | 2017-08-29 | 日立金属株式会社 | Pressure sensor and differential pressure pick-up and use their mass flow control appts |
| CN110448166A (en) * | 2019-07-23 | 2019-11-15 | 深圳电通纬创微电子股份有限公司 | A kind of electric kettle water level sensor and electric kettle |
| CN112696358A (en) * | 2020-10-29 | 2021-04-23 | 江苏凡煜机械科技有限公司 | Water supply pump with water pressure monitoring structure |
| CN114593864A (en) * | 2022-03-09 | 2022-06-07 | 中国船舶重工集团公司第七0三研究所 | Hydraulic sensor for thermal power plant thermodynamic system |
-
2008
- 2008-11-14 CN CNA2008102353106A patent/CN101419107A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832785A (en) * | 2010-04-12 | 2010-09-15 | 杭州鑫芯电子有限公司 | Regulatable Hall effect sensor |
| CN103282755B (en) * | 2010-11-29 | 2015-07-22 | 马夸特机械电子有限责任公司 | Sensor |
| CN103282755A (en) * | 2010-11-29 | 2013-09-04 | 马夸特机械电子有限责任公司 | Sensor |
| CN102252799A (en) * | 2011-06-03 | 2011-11-23 | 合肥工业大学 | Membrane type hydrostatic pressure sensor |
| CN102410913A (en) * | 2011-07-26 | 2012-04-11 | 北京鑫禾丰医疗技术有限公司 | Blockage detection device |
| CN102410913B (en) * | 2011-07-26 | 2015-01-21 | 刘仲馨 | Blockage detection device |
| CN102954853A (en) * | 2011-08-22 | 2013-03-06 | 关隆股份有限公司 | Pressure sensor and pressure sensing circuit thereof |
| CN102954853B (en) * | 2011-08-22 | 2015-06-10 | 关隆股份有限公司 | Pressure sensor and pressure sensing circuit thereof |
| CN103308243A (en) * | 2012-03-05 | 2013-09-18 | 伊顿公司 | Magnetically coded temperature and pressure detection apparatus |
| CN103308243B (en) * | 2012-03-05 | 2017-09-08 | 伊顿公司 | The temperature and pressure-detecting device of magnetic coding |
| CN107110727A (en) * | 2014-10-07 | 2017-08-29 | 日立金属株式会社 | Pressure sensor and differential pressure pick-up and use their mass flow control appts |
| CN107110727B (en) * | 2014-10-07 | 2019-06-18 | 日立金属株式会社 | Pressure sensor and differential pressure pick-up and the mass flow control appts for using them |
| CN106482779A (en) * | 2016-02-22 | 2017-03-08 | 罗托克执行器有限公司 | A kind of flange integrating device of use sensor acquisition pipeline medium parameter |
| CN106482779B (en) * | 2016-02-22 | 2019-09-06 | 浙江罗托克执行器股份有限公司 | A kind of flange integrating device using sensor acquisition pipeline medium parameter |
| CN110448166A (en) * | 2019-07-23 | 2019-11-15 | 深圳电通纬创微电子股份有限公司 | A kind of electric kettle water level sensor and electric kettle |
| CN112696358A (en) * | 2020-10-29 | 2021-04-23 | 江苏凡煜机械科技有限公司 | Water supply pump with water pressure monitoring structure |
| CN114593864A (en) * | 2022-03-09 | 2022-06-07 | 中国船舶重工集团公司第七0三研究所 | Hydraulic sensor for thermal power plant thermodynamic system |
| CN114593864B (en) * | 2022-03-09 | 2024-05-17 | 中国船舶重工集团公司第七0三研究所 | Hydraulic sensor for thermal power plant thermodynamic system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101419107A (en) | Pressure detecting sensor | |
| CN201307045Y (en) | Pressure detecting sensor | |
| CN201340320Y (en) | Vehicle pressure sensor | |
| WO2007146893A3 (en) | Fluid sensor with mechanical positional feedback | |
| CN201378089Y (en) | Vehicular electronic pressure sensor | |
| CN109387304A (en) | A kind of sensor device | |
| CN204064520U (en) | A kind of ratio-voltage pressure sensor output | |
| CN202033147U (en) | Pressure detection module of electric pressure cooker based on MEMS (Micro Electro Mechanical System) technology | |
| JPS54123077A (en) | Pressure sensor | |
| CN101122361A (en) | Pneumatic control grease injection device | |
| CN217786463U (en) | Sealing performance detection device for cork | |
| CN202255457U (en) | Three-in-one sensor | |
| CN202018354U (en) | Overpressure protection pressure and absolute pressure sensor without pressure transfer loss | |
| CN201600218U (en) | Post-type pressure difference transmitter | |
| CN202403858U (en) | Pressure detection device of electric pressure cooker | |
| WO2005066599A3 (en) | Modified dual diaphragm pressure sensor | |
| CN208780371U (en) | A kind of sensor device | |
| CN203493404U (en) | Pressure sensor and pressure cooker | |
| CN221260023U (en) | Floating ball type liquid level sensor | |
| CN208187626U (en) | A kind of novel gas inlet pressure sensor | |
| CN207881952U (en) | Buckle product probe-type Sensitive Detector | |
| CN217155724U (en) | Mould production processing detects frock | |
| CN201555718U (en) | Suction confirming system of vacuum suction cup | |
| CN2598033Y (en) | Pressure controller | |
| CN220472914U (en) | Clamp spring installation in-place detection tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20090429 |