CN204419289U - Electronic oil pressure sensor - Google Patents
Electronic oil pressure sensor Download PDFInfo
- Publication number
- CN204419289U CN204419289U CN201520080880.8U CN201520080880U CN204419289U CN 204419289 U CN204419289 U CN 204419289U CN 201520080880 U CN201520080880 U CN 201520080880U CN 204419289 U CN204419289 U CN 204419289U
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- CN
- China
- Prior art keywords
- oil pressure
- pcb board
- pressure sensor
- detecting element
- electronic oil
- 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 discloses a kind of electronic oil pressure sensor, comprise housing, terminal, pcb board, seal washer, pressure detecting element, layer of silica gel and electrical connector, it is characterized in that, described housing tip opening, bottom is formed with oilhole, described lower housing portion is also formed with connecting thread, described terminal is connected with described pcb board by electrical connector, described pcb board lower surface is provided with pressure detecting element mineralization pressure control gear, all layer of silica gel is covered with at the upper surface of described pressure control device and lower surface, described seal washer is arranged on described pressure control device bottom and is fixed in described inner walls, do not leak to keep engine oil pressure.This electronic oil pressure sensor can adopt the collection of liquid oil pressure, realize warning function by electrical signal conversion, output, and this apparatus structure is simple, and multiple functional element is in a device integrated, and oil pressure is changed and obtains Quick Acquisition, measuring accuracy is high.。
Description
Technical field
The utility model relates to oil pressure sensor technical field, particularly a kind of electronic oil pressure sensor.
Background technique
All dependence machine oil that starts of the various internal-combustion engine vehicles of automobile lubricates, once engine oil pressure is too low because of oil starvation generation dry friction, will cause violent wearing and tearing and heating, thus damage motor, therefore all can installation and measuring engine oil pressure on automobile, prevent oil pressure too low and damage motor.
The oil pressure sensor of prior art is that the pressure produced according to machine oil promotes diaphragm, and what diaphragm produced tries hard to recommend a dynamic electric contact, and electric contact is disconnected, and the tutorial light be connected in current loop loses electric current and extinguishes, and represents that engine oil pressure is normal.When engine oil pressure is too low, diaphragm return, electric contact is connected, and tutorial light obtains electric lighting, and simultaneously with buzzing prompting, reminds driver engine oil pressure too low, driver can be processed early, be unlikely to have an accident.Due to forfeiture and the breakage of membrane flexive, and the ablation of electric contact, thus easily make whole oil pressure sensor lose efficacy.
Summary of the invention
The purpose of this utility model is to provide that a kind of structure is simple, the reaction time is short and the electronic oil pressure sensor that measuring accuracy is high.
For this reason, the technical solution of the utility model is as follows:
A kind of electronic oil pressure sensor, comprise housing, terminal, pcb board, seal washer, pressure detecting element, layer of silica gel and electrical connector, it is characterized in that, described housing tip opening, bottom is formed with oilhole, described lower housing portion is also formed with connecting thread, described terminal is connected with described pcb board by electrical connector, described pcb board lower surface is provided with pressure detecting element mineralization pressure control gear, all layer of silica gel is covered with at the upper surface of described pressure control device and lower surface, described seal washer is arranged on described pressure control device bottom and is fixed in described inner walls, do not leak to keep engine oil pressure.
Described pressure detecting element is provided with the silicon diaphragm with piezoresistive effect, and described silicon diaphragm is provided with diffusion resistance.
Described pcb board comprises signal amplification circuit unit, signal processing unit, amplification output circuit unit, alarm drive circuit unit and power supply composition.
Described terminal is connected with light indicating device, is used to indicate oil pressure abnormal.
Compared with prior art, the beneficial effects of the utility model are: this electronic oil pressure sensor can adopt the collection of liquid oil pressure, realize warning function by electrical signal conversion, output, this apparatus structure is simple, multiple functional element is in a device integrated, oil pressure is changed and obtains Quick Acquisition, measuring accuracy is high.
Accompanying drawing explanation
Fig. 1 is the sectional view of electronic oil pressure sensor of the present utility model.
Embodiment
Be described in detail below in conjunction with the structure of accompanying drawing to electronic oil pressure sensor of the present utility model.
As shown in Figure 1, this electronic oil pressure sensor comprises housing 1, terminal 2, pcb board 3, seal washer 4, pressure detecting element 5, layer of silica gel 7 and electrical connector 8, it is characterized in that, described housing 1 open-topped, bottom is formed with oilhole 9, described housing 1 bottom is also formed with connecting thread 6, described terminal 2 is connected with described pcb board 3 by electrical connector 8, described pcb board 3 lower surface is provided with pressure detecting element 5 mineralization pressure control gear, layer of silica gel 7 is all covered with at the upper surface of described pressure control device and lower surface, described seal washer 4 is arranged on described pressure control device bottom and is fixed on described housing 1 inwall, do not leak to keep engine oil pressure.Wherein, described pressure detecting element 5 is provided with the silicon diaphragm with piezoresistive effect, and described silicon diaphragm is provided with diffusion resistance; Described pcb board 3 comprises signal amplification circuit unit, signal processing unit, amplification output circuit unit, alarm drive circuit unit and power supply composition, and described terminal 2 is connected with light indicating device, is used to indicate oil pressure abnormal.
The working principle of this electronic oil pressure sensor is as follows:
Be in machine oil under normal pressure by oilhole 9, enter pressure sensor inside, after the pressure detecting element 5 entered described in being arranged on pcb board 3 lower surface of pressure sensor inside accepts to enter the engine oil pressure of oilhole 9, produce electrical signal, this electrical signal is after pcb board 3 is changed, export a low potential by the terminal 2 be connected with electrical connector 8 to light indicating device, now the tutorial light of display machines oil pressure does not work, and represents that engine oil pressure is normal; Otherwise; when engine oil pressure appearance is abnormal or lower than specified value time; pressure detecting element 5 produces an electrical signal; this electrical signal through pressure detecting element 5 receive and by pcb board 3 change after; a high petential is exported to light indicating device by the terminal 2 be connected with electrical connector 8; tutorial light now on light indicating device is lighted, and driver engine oil pressure is abnormal.
Claims (4)
1. an electronic oil pressure sensor, comprise housing (1), terminal (2), pcb board (3), seal washer (4), pressure detecting element (5), layer of silica gel (7) and electrical connector (8), it is characterized in that, described housing (1) open-topped, bottom is formed with oilhole (9), described housing (1) bottom is also formed with connecting thread (6), described terminal (2) is connected with described pcb board (3) by electrical connector (8), described pcb board (3) lower surface is provided with pressure detecting element (5) mineralization pressure control gear, layer of silica gel (7) is all covered with at the upper surface of described pressure control device and lower surface, described seal washer (4) is arranged on described pressure control device bottom and is fixed on described housing (1) inwall, do not leak to keep engine oil pressure.
2. electronic oil pressure sensor according to claim 1, is characterized in that, described pressure detecting element (5) is provided with the silicon diaphragm with piezoresistive effect, and described silicon diaphragm is provided with diffusion resistance.
3. electronic oil pressure sensor according to claim 1, is characterized in that, described pcb board (3) comprises signal amplification circuit unit, signal processing unit, amplification output circuit unit, alarm drive circuit unit and power supply composition.
4. electronic oil pressure sensor according to claim 1, is characterized in that, described terminal (2) is connected with light indicating device (10), is used to indicate oil pressure abnormal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520080880.8U CN204419289U (en) | 2015-02-04 | 2015-02-04 | Electronic oil pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520080880.8U CN204419289U (en) | 2015-02-04 | 2015-02-04 | Electronic oil pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204419289U true CN204419289U (en) | 2015-06-24 |
Family
ID=53469670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520080880.8U Expired - Fee Related CN204419289U (en) | 2015-02-04 | 2015-02-04 | Electronic oil pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204419289U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678830A (en) * | 2018-08-03 | 2018-10-19 | 柴德维 | A kind of automobile electrical minor engine oil pressure pickup |
-
2015
- 2015-02-04 CN CN201520080880.8U patent/CN204419289U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678830A (en) * | 2018-08-03 | 2018-10-19 | 柴德维 | A kind of automobile electrical minor engine oil pressure pickup |
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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 |
Granted publication date: 20150624 Termination date: 20160204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |