CN209117242U - A kind of engine oil pressure pickup - Google Patents
A kind of engine oil pressure pickup Download PDFInfo
- Publication number
- CN209117242U CN209117242U CN201822218695.7U CN201822218695U CN209117242U CN 209117242 U CN209117242 U CN 209117242U CN 201822218695 U CN201822218695 U CN 201822218695U CN 209117242 U CN209117242 U CN 209117242U
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- China
- Prior art keywords
- pressure
- plug connector
- fixedly installed
- connector shell
- sensitive chip
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Abstract
A kind of engine oil pressure pickup, including screw base, positioning plate, FPC plate, plug connector shell, contact pin, ceramic substrate, pressure-sensitive chip and protective glue cover, the ceramic substrate are fixedly installed in screw base by sealant；The pressure-sensitive chip is fixedly installed on the ceramic substrate by sealant；The pressure-sensitive chip periphery is fixedly installed with a circle protective glue cover；A circle positioning plate is fixedly installed between the ceramic substrate and screw base；The plug connector shell is fixedly installed in the screw base；The plug connector shell is located above protective glue cover；The FPC plate is fixedly installed between plug connector shell and protective glue cover；Described contact pin one end passes through the soldering of plug connector shell on FPC plate, and the other end is located in the detection notch of plug connector shell.The utility model guarantees while pressure-sensitive chip and FPC module are isolated with machine oil medium and the pressure of energy detection machine oil medium, improves the service life of entire pressure responsive device.
Description
Technical field
The utility model relates to engine oil pressure the field of test technology, specially a kind of engine oil pressure pickup.
Background technique
Since engine oil pressure pickup local environment is severe, life cycle management is needed all to be immersed in machine oil, it is long-term to bear
High temperature and pressure, and used how much can all have the foreign matters such as some carbon distributions in machine oil after a certain period of time.Machine oil currently on the market
Pressure sensor is mostly that entire pressure-sensitive module is exposed in machine oil, and the accuracy of service life and measurement will receive sternly
Ghost image is rung.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of engine oil pressure pickup, solution
Existing engine oil pressure pickup determined since entire pressure-sensitive module is exposed in machine oil, engine oil pressure pickup is caused to use the longevity
The problem of life reduces, and measurement accuracy declines.
The engine oil pressure pickup, it is closed by formed one between ceramic substrate and protective glue cover and protection gel
Pressure-sensitive chip is fixedly installed in wherein by space, and pressure-sensitive chip is isolated with machine oil medium, and that improves pressure-sensitive chip uses the longevity
Life；It is solid in lid confined space by the confined space formed between screw base and plug connector shell and ceramic substrate
Dingan County fills FPC plate, plays the role of that machine oil medium is isolated to FPC plate, improves the service life of FPC module.
The engine oil pressure pickup will have been carried out between entire pressure-sensitive module and machine oil medium it is effective be isolated, can prevent from feeling
Chip is pressed due to the influence of the foreign matters such as some carbon distributions in machine oil, leads to the problem of pressure-sensitive module measurement inaccuracy.Meanwhile screw thread
The setting of pedestal and plug connector shell waterproof gasket cement, and the stability of whole device can be improved.
To achieve the goals above, the technical solution adopted in the utility model are as follows:
A kind of engine oil pressure pickup, including screw base, positioning plate, FPC plate, plug connector shell, contact pin, ceramic base
Plate, pressure-sensitive chip and protective glue cover, the ceramic substrate are fixedly installed in screw base by sealant；The ceramic substrate
And an oil medium via hole is equipped in screw base；The pressure-sensitive chip is fixedly installed in the ceramic substrate by sealant
On；The pressure-sensitive chip periphery is fixedly installed with a circle protective glue cover；It is fixedly mounted between the ceramic substrate and screw base
There is a positioning plate；The plug connector shell is fixedly installed in the screw base；The plug connector shell is located at protective glue
The top of cover；The FPC plate is fixedly installed between plug connector shell and protective glue cover；The pressure-sensitive chip passes through connection
The FPC plate；Described contact pin one end passes through the soldering of plug connector shell on FPC plate, and the other end is located at the detection of plug connector shell
In notch.
Further, the junction of the screw base and plug connector shell is equipped with one layer of marine glue.
Further, one layer of protection gel is equipped between the protective glue cover and pressure-sensitive chip.
Further, the air pressure of the air between the pressure-sensitive chip and the protection gel is equal to a normal atmosphere
Pressure.
Further, the connection line of the connection between the pressure-sensitive chip and FPC plate is gold thread.
The engine oil pressure pickup, it is closed by formed one between ceramic substrate and protective glue cover and protection gel
Pressure-sensitive chip is fixedly installed in wherein by space, and pressure-sensitive chip is isolated with machine oil medium, and that improves pressure-sensitive chip uses the longevity
Life；It is solid in lid confined space by the confined space formed between screw base and plug connector shell and ceramic substrate
Dingan County fills FPC plate, plays the role of that machine oil medium is isolated to FPC plate, improves the service life of FPC module.
The engine oil pressure pickup will have been carried out between entire pressure-sensitive module and machine oil medium it is effective be isolated, can prevent from feeling
Chip is pressed due to the influence of the foreign matters such as some carbon distributions in machine oil, leads to the problem of pressure-sensitive module measurement inaccuracy.Meanwhile screw thread
The setting of pedestal and plug connector shell waterproof gasket cement, and the stability of whole device can be improved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
In figure: 1, screw base, 2, positioning plate, 3, FPC plate, 4, plug connector shell, 5, contact pin, 6, sealant, 7, ceramics
Substrate, 8, pressure-sensitive chip, 9, protection gel, 10, protective glue cover, 11, marine glue, 12, detection notch.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
A kind of engine oil pressure pickup as shown in Figure 1, including screw base 1, positioning plate 2, FPC plate 3, plug connector shell
4, contact pin 5, ceramic substrate 7, pressure-sensitive chip 8 and protective glue cover 10, the ceramic substrate 7 are fixedly installed in spiral shell by sealant 6
On line pedestal 1；An oil medium via hole is equipped on the ceramic substrate 7 and screw base 1；The pressure-sensitive chip 8 passes through close
Sealing 6 is fixedly installed on the ceramic substrate 7；8 periphery of pressure-sensitive chip is fixedly installed with a circle protective glue cover 10；It is described
A positioning plate 2 is fixedly installed between ceramic substrate 7 and screw base 1；Described 4 one end of plug connector shell is fixedly installed in institute
It states in screw base 1；The plug connector shell 4 is located at the top of protective glue cover 10；The FPC plate 3 is fixedly installed in plug connector
Between shell 4 and protective glue cover 10；The pressure-sensitive chip 8 passes through FPC plate 3 described in connection；Described 5 one end of contact pin, which passes through, inserts
In on FPC plate 3, the other end is located in the detection notch 12 of plug connector shell 44 soldering of connector housings.
Preferably, the junction of screw base 1 and plug connector shell 4 is equipped with one layer of marine glue 11；Protective glue cover 10 and sense
It presses and is equipped with one layer of protection gel 9 between chip 8；The air pressure of air between pressure-sensitive chip 8 and the protection gel 9 is equal to one
Standard atmospheric pressure；The connection line of connection between pressure-sensitive chip 8 and FPC plate 3 is gold thread.
When utility model works, which is placed in machine oil medium, by detection notch 12
The back side of one end external connection display equipment of contact pin 5, pressure-sensitive chip 8 passes through the oil medium via hole on ceramic substrate 7 and screw base 1
Engine oil pressure is detected, pressure-sensitive signal is transferred to FPC plate 3 by the route between pressure-sensitive chip 8 and FPC plate 3, is transmitted by contact pin 5
To external connection display equipment, the detection to engine oil pressure is completed.Since the back side of pressure-sensitive chip 8 is silicon dioxide layer, structure is steady
Surely it is not readily susceptible to the influence of impurity in machine oil medium.
The engine oil pressure pickup, it is close by one formed between ceramic substrate 7 and protective glue cover 10 and protection gel
Pressure-sensitive chip 8 is fixedly installed in wherein by the space closed, and pressure-sensitive chip 8 is isolated with machine oil medium, improves pressure-sensitive chip 8
Service life；It is closed covering by the confined space formed between screw base 1 and plug connector shell 4 and ceramic substrate 7
FPC plate 3 is fixedly mounted in space, plays the role of that machine oil medium is isolated to FPC plate 3, improves the service life of FPC plate 3.
The engine oil pressure pickup will have been carried out between entire pressure-sensitive module and machine oil medium it is effective be isolated, can prevent from feeling
Chip 8 is pressed due to the influence of the foreign matters such as some carbon distributions in machine oil, leads to the problem of pressure-sensitive module measurement inaccuracy.Meanwhile spiral shell
The setting of the waterproof gasket cement of line pedestal 1 and plug connector shell 4, and the stability of whole device can be improved.
Above embodiment is the explanation to the utility model, is not the restriction to the utility model, it is possible to understand that not
These embodiments can be carried out with a variety of variations, modification, replacement in the case where being detached from the principles of the present invention and spirit and become
Type, the protection scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of engine oil pressure pickup, which is characterized in that including screw base (1), positioning plate (2), FPC plate (3), plug connector
Shell (4), contact pin (5), ceramic substrate (7), pressure-sensitive chip (8) and protective glue cover (10), the ceramic substrate (7) pass through sealing
Glue (6) is fixedly installed on screw base (1)；An oil medium mistake is equipped in the ceramic substrate (7) and screw base (1)
Hole；The pressure-sensitive chip (8) is fixedly installed on the ceramic substrate (7) by sealant (6)；The pressure-sensitive chip (8) is outside
It encloses and is fixedly installed with a circle protective glue cover (10)；One is fixedly installed between the ceramic substrate (7) and screw base (1) to determine
Position plate (2)；Described plug connector shell (4) one end is fixedly installed in the screw base (1)；Plug connector shell (4) position
In the top of protective glue cover (10)；The FPC plate (3) is fixedly installed between plug connector shell (4) and protective glue cover (10)；Institute
It states pressure-sensitive chip (8) and passes through FPC plate (3) described in connection；Described contact pin (5) one end pass through (4) soldering of plug connector shell in
On FPC plate (3), the other end is located in the detection notch (12) of plug connector shell (4).
2. a kind of engine oil pressure pickup according to claim 1, which is characterized in that the screw base (1) and grafting
The junction of part shell (4) is equipped with one layer of marine glue (11).
3. a kind of engine oil pressure pickup according to claim 1, which is characterized in that the protective glue cover (10) and pressure-sensitive
One layer of protection gel (9) is equipped between chip (8).
4. a kind of engine oil pressure pickup according to claim 3, which is characterized in that the pressure-sensitive chip (8) with it is described
The air pressure of the air between gel (9) is protected to be equal to a standard atmospheric pressure.
5. a kind of engine oil pressure pickup according to claim 1, which is characterized in that the pressure-sensitive chip (8) and FPC plate
(3) connection line between is gold thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822218695.7U CN209117242U (en) | 2018-12-27 | 2018-12-27 | A kind of engine oil pressure pickup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822218695.7U CN209117242U (en) | 2018-12-27 | 2018-12-27 | A kind of engine oil pressure pickup |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209117242U true CN209117242U (en) | 2019-07-16 |
Family
ID=67208794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822218695.7U Active CN209117242U (en) | 2018-12-27 | 2018-12-27 | A kind of engine oil pressure pickup |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209117242U (en) |
-
2018
- 2018-12-27 CN CN201822218695.7U patent/CN209117242U/en active Active
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