CN202382899U - Intake manifold pressure sensor - Google Patents
Intake manifold pressure sensor Download PDFInfo
- Publication number
- CN202382899U CN202382899U CN2011205711586U CN201120571158U CN202382899U CN 202382899 U CN202382899 U CN 202382899U CN 2011205711586 U CN2011205711586 U CN 2011205711586U CN 201120571158 U CN201120571158 U CN 201120571158U CN 202382899 U CN202382899 U CN 202382899U
- Authority
- CN
- China
- Prior art keywords
- pressure sensor
- intake manifold
- air inlet
- manifold pressure
- wiring board
- 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
- 229920003023 plastic Polymers 0.000 claims abstract description 5
- 238000003466 welding Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses an intake manifold pressure sensor, wherein the intake manifold pressure sensor comprises a plastic housing, a pressure sensor and a circuit board; one side wall of the housing is provided with an air inlet; a sealed cavity which is formed by the circuit board and the side wall of the housing and which is communicated with the sir inlet is arranged in the housing; the pressure sensor is fixedly welded on a back face of the circuit board; the pressure sensor is arranged to face the air inlet. The intake manifold pressure sensor provided by the utility model is mounted in an automobile air inlet pipe as a whole, so that the intake manifold pressure sensor is characterized by simple structure, low cost, stable parameter and reliable performance, is assembled/disassembled conveniently, and is debugged conveniently after assembling/disassembling well.
Description
Technical field
The utility model relates to a kind of sensor, what be specifically related to is a kind of intake manifold pressure sensor.
Background technology
Air inlet (manifold) pressure transducer is a kind of automobile sensor, is the absolute pressure of draft tube when being used for test engine work, handles through a series of signal, how much calculates the interior air inflow of draft tube.Air inlet (manifold) pressure sensor application is controlled fuel injection system in car engine electronic, and when the work of car engine electronic control fuel injection system, engine charge pressure changes with the variation of charge flow rate; When throttle opening increased (being that charge flow rate increases), admission pressure raise, and diaphragm stress increases; The change in resistance amount of force sensing resistance increases, and bridge output voltage raises, after integrated hybrid circuit processing and amplifying; The signal voltage of sensor input ECU ECU will raise, otherwise, when throttle opening from large to small when (being that charge flow rate reduces); Admission pressure reduces, and diaphragm stress reduces, and the change in resistance amount of force sensing resistance reduces; The bridge voltage output voltage reduces, and the signal voltage of input ECU reduces.The air inlet pressure sensor of prior art, the equipment input is many, and assembling is inconvenient, and cost is high, and particularly signal processing and temperature compensation part-structure are complicated, and debug cumbersome.
Summary of the invention
Problem in view of known technology existence at present; The technical matters that the utility model will solve is to be to provide a kind of integral body in the automotive air intake pipe, to install; Simple in structure, easy to assembly, cost is low, in the intake manifold pressure sensor that assembles post debugging convenience, parameter stability, dependable performance.
For solving the problems of the technologies described above, the utility model takes following technical scheme to accomplish:
Intake manifold pressure sensor; It is characterized in that: said intake manifold pressure sensor comprises plastic casing, pressure transducer and wiring board; Side wall of outer shell is provided with air inlet; Be provided with in the shell by wiring board and side wall of outer shell and form the closed cavity that communicates with air inlet together, said pressure transducer is fixing in the welding of the back side of wiring board, and pressure transducer is over against the air inlet setting.
The utility model encapsulates pressure transducer, wiring board etc. in the enclosure together; Then packaged integral body is installed in the automotive air intake pipe; Pressure through air-flow generation in the automotive air intake pipe; Act on the pressure transducer, pressure signal is handled the back through the signal processing circuit of wiring board and is produced d. c. voltage signal, reaches the output characteristics the same with prior art.But the utility model just partly is made up of pressure transducer, wiring board, shell etc. simply, and simple in structure, easy to assembly, cost is low, and is assembling post debugging convenience, parameter stability, dependable performance.
Description of drawings
The utility model has following accompanying drawing:
Fig. 1 is the structural representation of the utility model.
Embodiment
Accompanying drawing has been represented the technical scheme and the embodiment of the utility model, combines accompanying drawing to further describe each relevant details and principle of work thereof of embodiment below again.
With reference to accompanying drawing 1; This kind intake manifold pressure sensor; Comprise plastic casing (being formed by connecting plastic feet 1 and vinyl cover 2), pressure transducer 5 and wiring board 3, side wall of outer shell is provided with air inlet 7, is provided with in the shell by wiring board 3 and side wall of outer shell and forms the closed cavity 6 that communicates with air inlet together; Wiring board 3 seals with silica gel 4 with the side wall of outer shell contact site; Said pressure transducer 5 is fixing in the welding of the back side of wiring board 3, and pressure transducer 5 is provided with over against air inlet 7, and the front of wiring board 3 is provided with signal processing circuit.
The intake manifold pressure sensor of the utility model is done as a wholely in the automotive air intake pipe, to install; Pressure through air-flow generation in the automotive air intake pipe; Act on the pressure transducer, pressure signal is handled the back through the signal processing circuit of wiring board and is produced d. c. voltage signal, reaches the output characteristics the same with prior art; D. c. voltage signal passes to controller ECU through signal terminal output then, the size of the charge flow rate when controller ECU can obtain automobile work in the admission line.
Claims (1)
1. intake manifold pressure sensor; It is characterized in that: said intake manifold pressure sensor comprises plastic casing, pressure transducer and wiring board; Side wall of outer shell is provided with air inlet; Be provided with in the shell by wiring board and side wall of outer shell and form the closed cavity that communicates with air inlet together, said pressure transducer is fixing in the welding of the back side of wiring board, and pressure transducer is over against the air inlet setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205711586U CN202382899U (en) | 2011-12-31 | 2011-12-31 | Intake manifold pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205711586U CN202382899U (en) | 2011-12-31 | 2011-12-31 | Intake manifold pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202382899U true CN202382899U (en) | 2012-08-15 |
Family
ID=46631394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205711586U Expired - Fee Related CN202382899U (en) | 2011-12-31 | 2011-12-31 | Intake manifold pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202382899U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084983A (en) * | 2018-08-07 | 2018-12-25 | 李晨天 | Inlet manifold comprehensive sensor based on barometric information analysis |
| CN111982387A (en) * | 2020-08-06 | 2020-11-24 | 瑞安市兆达机车部件有限公司 | Automobile brake sensor, pressure difference detection method and preparation method |
-
2011
- 2011-12-31 CN CN2011205711586U patent/CN202382899U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084983A (en) * | 2018-08-07 | 2018-12-25 | 李晨天 | Inlet manifold comprehensive sensor based on barometric information analysis |
| CN111982387A (en) * | 2020-08-06 | 2020-11-24 | 瑞安市兆达机车部件有限公司 | Automobile brake sensor, pressure difference detection method and preparation method |
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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: 20120815 Termination date: 20141231 |
|
| EXPY | Termination of patent right or utility model |