CN203719814U - Piezoelectric oil pressure sensor - Google Patents
Piezoelectric oil pressure sensor Download PDFInfo
- Publication number
- CN203719814U CN203719814U CN201320475647.0U CN201320475647U CN203719814U CN 203719814 U CN203719814 U CN 203719814U CN 201320475647 U CN201320475647 U CN 201320475647U CN 203719814 U CN203719814 U CN 203719814U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- oil pressure
- piezoelectric
- engine oil
- pressure 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
Links
Abstract
A piezoelectric oil pressure sensor comprises an oil pressure sensor housing (1), a piezoelectric element subassembly, a plastic connecting piece (2) and a circuit board (5). A connection screw thread (3) on the lower part of a sensor main body (1) is used for connecting with an oil passage on a body. An energy transducer H made of piezoelectric ceramics is arranged under the bottom of the connection screw thread (3). The energy transducer H is connected to the circuit board (5). The circuit board (5) is connected to electric connection elements (4). A sealing ring (6) is arranged on the bottom of the circuit board. The upper portion of the sensor main body (1) is connected to the plastic connecting piece (2). The piezoelectric oil pressure sensor provided by the utility model can prevent faults generated by traditional oil pressure sensor, so that the reliability can be increased and the service life can be prolonged.
Description
Technical field
The utility model relates to a kind of engine oil pressure pickup, especially relates to a kind of piezoelectric type engine oil pressure pickup.
Background technology
The engine oil pressure pickup of prior art is that the pressure producing according to machine oil promotes diaphragm, and what diaphragm produced tries hard to recommend a moving electric contact, and electric contact is disconnected, and is connected on pilot lamp in current return and loses electric current and extinguish, and represents that engine oil pressure is normal.In the time that engine oil pressure is too low, diaphragm return, electric contact is connected, and pilot lamp obtains electric lighting, and simultaneously with buzzing prompting, reminds human pilot engine oil pressure too low, and human pilot can be processed early, is unlikely to have an accident.Due to the flexible forfeiture of diaphragm and breakage, and the ablation of electric contact, thereby easily make whole engine oil pressure pickup lose efficacy.
Summary of the invention
The purpose of this utility model is to overcome the weak point existing in above-mentioned technology, provide a kind of simple in structure, construct novel piezoelectric type engine oil pressure pickup.
In order to achieve the above object, the technical scheme that piezoelectric type engine oil pressure pickup provided by the utility model adopts is: described piezoelectric type engine oil pressure pickup, by engine oil sensor shell, piezoelectric element assembly, electronic component circuit board composition, wherein, transducer and resistance capacitance that described piezoelectric element assembly is made up of piezoelectric ceramics form, electronic component circuit board is by microprocessor and resistance capacitance, electronic switch components and parts composition, on described engine oil sensor shell, there is plastic fastening, above plastic fastening, there is the electric connection being connected with external circuit.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model
Fig. 2 is the sectional view of housing parts of the present utility model
Fig. 3 is the schematic diagram of circuit board of the present utility model
Fig. 4 is the diagrammatic cross-section of circuit board of the present utility model
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail
Can be found out by Fig. 1, Fig. 2, piezoelectric type engine oil pressure pickup provided by the utility model is by sensor outer housing 1, piezoelectric element assembly, and plastic fastening 2, circuit board 5 forms.
Wherein, the bottom of sensor main body 1 is connecting thread 3, be used for being connected with the Oil passage on body, the bottom of connecting thread 3 is transducer H that piezoelectric ceramics is made, and transducer H is connected with circuit board 5, the one side of circuit board 5 is posted electronic switching element 9, another side posts microprocessor W, and circuit board 5 is connected with electrical connector 4, and the below of circuit board is O-ring seal 6, the top of sensor main body 1 is connected with plastic fastening 2, and plastic fastening 2 is equipped with electrical connector 4 above.
Electronic oil pressure sensor provided by the utility model is work like this, the transducer H that has the machine oil of certain pressure to make with piezoelectric ceramics contacts, the transducer H that piezoelectric ceramics is made produces distortion under the pressure of machine oil, can produce the physical characteristics of voltage according to the distortion of piezoelectric ceramics, the voltage of transducer H output that piezoelectric ceramics is made, this voltage transmission is to microprocessor W, microprocessor W is after computing, export an electric signal, after the conversion of the electronic switching element 9 that this electric signal mounts through circuit board another side, export an electronegative potential by being attached thereto the electrical connector 4 connecing, the pilot lamp that shows engine oil pressure does not work, represent that engine oil pressure is normal, otherwise, when engine oil pressure occurs abnormal or lower than setting time, the transducer H that piezoelectric ceramics is made can rebound because being out of shape the voltage transmission producing to microprocessor W, microprocessor W is after computing, export a corresponding electric signal, after the conversion of the electronic switching element 9 that this electric signal mounts through circuit board another side, export a noble potential, the pilot lamp that is delivered to demonstration engine oil pressure by being attached thereto the electrical connector 4 connecing is lighted, driver engine oil pressure is abnormal.
The fault that piezoelectric type engine oil pressure pickup provided by the utility model can avoid traditional engine oil pressure pickup to produce, thus reliability is increased, and extended serviceable life.
Claims (2)
1. a piezoelectric type engine oil pressure pickup is by engine oil sensor main body, piezoelectric element assembly, electronic component circuit board composition, wherein, the bottom of sensor main body (1) is connecting thread (3), be used for being connected with the Oil passage on body, the bottom of connecting thread (3) is transducer (H), transducer (H) is connected with circuit board (5), the one side of circuit board (5) is posted electronic switching element (9), another side posts microprocessor (W), circuit board (5) is connected with electrical connector (4), the below of circuit board is O-ring seal (6), the top of sensor main body (1) is connected with plastic fastening (2), plastic fastening (2) is equipped with electrical connector (4) above, it is characterized in that, transducer and resistance capacitance that described piezoelectric element assembly is made up of piezoelectric ceramics form.
2. piezoelectric type engine oil pressure pickup according to claim 1, is characterized in that; Described electronic component circuit board is made up of microprocessor and electronic switch components and parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320475647.0U CN203719814U (en) | 2013-07-29 | 2013-07-29 | Piezoelectric oil pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320475647.0U CN203719814U (en) | 2013-07-29 | 2013-07-29 | Piezoelectric oil pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203719814U true CN203719814U (en) | 2014-07-16 |
Family
ID=51158953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320475647.0U Expired - Fee Related CN203719814U (en) | 2013-07-29 | 2013-07-29 | Piezoelectric oil pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203719814U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314638A (en) * | 2014-09-24 | 2015-01-28 | 昆山超强光电设备有限公司 | Piezoelectric type engine oil pressure sensor |
| CN107014553A (en) * | 2017-06-07 | 2017-08-04 | 安徽海盛智能测控科技有限公司 | A kind of system of electronic oil pressure sensor |
-
2013
- 2013-07-29 CN CN201320475647.0U patent/CN203719814U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314638A (en) * | 2014-09-24 | 2015-01-28 | 昆山超强光电设备有限公司 | Piezoelectric type engine oil pressure sensor |
| CN107014553A (en) * | 2017-06-07 | 2017-08-04 | 安徽海盛智能测控科技有限公司 | A kind of system of electronic oil pressure sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20160729 |