CN202853790U - Sensor device used for detecting gas temperature and pressure of gas inlet manifold of automobile - Google Patents
Sensor device used for detecting gas temperature and pressure of gas inlet manifold of automobile Download PDFInfo
- Publication number
- CN202853790U CN202853790U CN 201220568392 CN201220568392U CN202853790U CN 202853790 U CN202853790 U CN 202853790U CN 201220568392 CN201220568392 CN 201220568392 CN 201220568392 U CN201220568392 U CN 201220568392U CN 202853790 U CN202853790 U CN 202853790U
- Authority
- CN
- China
- Prior art keywords
- pressure
- thermistor
- inlet manifold
- chip
- sensor device
- 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
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 13
- 239000010703 silicon Substances 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 claims abstract description 9
- 239000004065 semiconductor Substances 0.000 claims abstract description 5
- 239000000919 ceramic Substances 0.000 claims abstract description 4
- 239000000446 fuel Substances 0.000 abstract 2
- 238000002347 injection Methods 0.000 abstract 2
- 239000007924 injection Substances 0.000 abstract 2
- 230000003321 amplification Effects 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a sensor device used for detecting gas temperature and pressure of a gas inlet manifold of an automobile comprising a pressure chip and a thermistor. The pressure chip is a silicon chip formed by using the piezoelectric effect of a semiconductor. One surface of the silicon chip is a negative pressure zone, and the other surface is under the action of the gas inlet manifold pressure. Under the action of the gas pressure in the gas inlet manifold, the silicon chip can be deformed, and the resistance value of the silicon chip can be changed, therefore a bridge voltage can be changed. Because the said voltage is small, the voltage can be provided to a microcomputer circuit after a signal amplification process by a hybrid integrated circuit. The thermistor is an element formed by a semiconductor ceramic agent, which is very sensitive to the temperature. The sensor device uses the NTC type thermistor, when the inlet gas temperature is low, the resistance value of the thermistor is large. When the voltage of the signal, which is input in the ECU by the sensor device, is high, the ECU can control the engine to increase the fuel injection amount, and conversely, the ECU can control the engine to reduce the fuel injection amount. When the temperature is 25degrees, the accuracy of the thermistor is 2%, and the validity of the measuring result can be greatly improved.
Description
Technical field
The utility model relates to a kind of gas temperature pressure sensor device, especially the automobile sensor device that detects inlet manifold gas temperature and pressure.
Background technology
At present, as critical piece in the electro jet car oil spout electronic control system: air inlet pressure sensor, intake air temperature sensor, its function is the electric signal that intake air temperature and admission pressure are provided to miniature control system (ECU), the air inflow of miniature control system (ECU) by the program calculation engine is again according to the corresponding distributive value of calculated signals of other sensor.So the result precision of air inlet pressure sensor and temperature sensor test directly affects the operating mode of engine.Two kinds of sensors that use on the existing market, shortcoming are the too much spaces that has taken engine.
Summary of the invention
The purpose of this utility model is to overcome the weak point that exists in the above-mentioned technology, and a kind of automobile sensor device that detects the inlet manifold temperature and pressure simple in structure, reasonable in design is provided.
In order to achieve the above object, the technical solution adopted in the utility model is: a kind of automobile sensor device that detects inlet manifold gas temperature and pressure, by loam cake (2), lower house (5), terminal (1), thermistor (8), circuit board (3), O-ring seal (6) forms, it is characterized in that: circuit board is equipped with pressure chip IC(4 on (3)), pressure chip IC(4) the 2nd pin and terminal 5V join, pressure chip IC(3) the 6th pin, the 8th pin and terminal GND join, pressure chip IC(4) the 7th pin and terminal Vout join, thermistor (8) is installed in lower house (5) air intake opening (7) position, its bipod respectively with terminal MAT, the GND contact pin joins.
Pressure chip is the silicon chip that utilizes semi-conductive piezoelectric effect to make, the one side of silicon chip is negative pressuren zone, the another side effect be inlet manifold pressure, under the effect of gaseous tension, silicon chip will produce distortion in inlet manifold, and the resistance value of silicon chip is changed, thereby bridge voltage is changed, because this voltage is very little, so after by hydrid integrated circuit this signal being amplified processing in the circuit, just offer microcomputer circuit; Thermistor is the element that consists of by to the highstrung semiconductor ceramics matter of temperature working body, this sensor uses NTC type thermistor, when intake air temperature is low, the resistance value of thermistor is large, the signal voltage of sensor input ECU is high, the ECU control engine increases distributive value, otherwise reduces distributive value.25 ℃ of precision of this thermistor are 2%, have greatly improved the validity of measurement result.
The utility model has the advantages that:
(1), simple in structure, reasonable in design owing to introduced thermistor, and make this sensor can carry out simultaneously the measurement of pressure and temperature, make engine structure compacter.
(2), the utility model is owing to having adopted high-precision pressure chip and thermistor, so test result is accurate.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is pressure chip, thermistor connection diagram.
Embodiment
Below in conjunction with accompanying drawing enforcement of the present utility model is described in further detail.
By Fig. 1～Fig. 2 as can be known, a kind of automobile sensor device that detects inlet manifold gas temperature and pressure, by loam cake (2), lower house (5), terminal (1), thermistor (8), circuit board (3), O-ring seal (6) forms, it is characterized in that: circuit board is equipped with pressure chip IC(4 on (3)), pressure chip IC(4) the 2nd pin and terminal 5V join, pressure chip IC(3) the 6th pin, the 8th pin and terminal GND join, pressure chip IC(4) the 7th pin and terminal Vout join, thermistor (8) is installed in lower house (5) air intake opening (7) position, its bipod respectively with terminal MAT, the GND contact pin joins.
The above only is preferred implementation of the present utility model, for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model principle, also can do some adjustment and improvement, and these also should be considered as belonging to protection domain of the present utility model.
Claims (2)
1. an automobile is with the sensor device that detects inlet manifold gas temperature and pressure, by loam cake (2), lower house (5), terminal (1), thermistor (8), circuit board (3), O-ring seal (6) forms, it is characterized in that: circuit board is equipped with pressure chip IC(4 on (3)), pressure chip IC(4) the 2nd pin and terminal 5V join, pressure chip IC(3) the 6th pin, the 8th pin and terminal GND join, pressure chip IC(4) the 7th pin and terminal Vout join, thermistor (8) is installed in lower house (5) air intake opening (7) position, its bipod respectively with terminal MAT, the GND contact pin joins.
According to claim 1 described a kind of automobile with the sensor device that detects inlet manifold gas temperature and pressure, it is characterized in that: pressure chip is the silicon chip that utilizes semi-conductive piezoelectric effect to make, the one side of silicon chip is negative pressuren zone, the another side effect be inlet manifold pressure; Thermistor is the element that consists of by to the highstrung semiconductor ceramics matter of temperature working body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220568392 CN202853790U (en) | 2012-11-01 | 2012-11-01 | Sensor device used for detecting gas temperature and pressure of gas inlet manifold of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220568392 CN202853790U (en) | 2012-11-01 | 2012-11-01 | Sensor device used for detecting gas temperature and pressure of gas inlet manifold of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202853790U true CN202853790U (en) | 2013-04-03 |
Family
ID=47984974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220568392 Expired - Fee Related CN202853790U (en) | 2012-11-01 | 2012-11-01 | Sensor device used for detecting gas temperature and pressure of gas inlet manifold of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202853790U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165722A (en) * | 2013-05-16 | 2014-11-26 | 罗伯特·博世有限公司 | Device for detecting the pressure and temperature of a fluid medium flowing in a channel |
| CN105626186A (en) * | 2015-11-04 | 2016-06-01 | 宁波吉利罗佑发动机零部件有限公司 | Engine oil pressure detecting device |
| CN109185004A (en) * | 2018-08-22 | 2019-01-11 | 宝鸡吉利发动机有限公司 | The igniter and method of engine |
| CN109341752A (en) * | 2018-08-14 | 2019-02-15 | 襄阳臻芯传感科技有限公司 | A kind of idle call pressure-temperature sensor |
-
2012
- 2012-11-01 CN CN 201220568392 patent/CN202853790U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165722A (en) * | 2013-05-16 | 2014-11-26 | 罗伯特·博世有限公司 | Device for detecting the pressure and temperature of a fluid medium flowing in a channel |
| CN105626186A (en) * | 2015-11-04 | 2016-06-01 | 宁波吉利罗佑发动机零部件有限公司 | Engine oil pressure detecting device |
| CN105626186B (en) * | 2015-11-04 | 2018-02-02 | 浙江锋锐发动机有限公司 | A kind of engine oil pressure detection means |
| CN109341752A (en) * | 2018-08-14 | 2019-02-15 | 襄阳臻芯传感科技有限公司 | A kind of idle call pressure-temperature sensor |
| CN109185004A (en) * | 2018-08-22 | 2019-01-11 | 宝鸡吉利发动机有限公司 | The igniter and method of engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8215160B2 (en) | Sensor structure | |
| CN202853790U (en) | Sensor device used for detecting gas temperature and pressure of gas inlet manifold of automobile | |
| CN102636227B (en) | Sensor structure | |
| ATE534023T1 (en) | INTEGRATED TOTAL AIR TEMPERATURE PROBE AND ELECTRONICS | |
| CN106461484B (en) | Mechanical measurement device and the pressure sensor for using it | |
| US9625292B2 (en) | Flow rate measurement device | |
| US9557202B2 (en) | Air mass meter with a sensor element | |
| JP4850105B2 (en) | Thermal flow meter | |
| CN103743934B (en) | High-precision high-side current detection circuit | |
| US11079265B2 (en) | Air mass flow meter | |
| CN203011398U (en) | Non-contact electronic throttle sensor | |
| CN102822641A (en) | Thermal flow sensor | |
| CN202677120U (en) | Sensor device used for automobile to detect gas temperature and gas pressure of intake manifold | |
| CN109990942A (en) | A kind of high-pressure common-rail pressure sensor | |
| JP6186244B2 (en) | Temperature control device for heater for temperature and humidity sensor | |
| JP6520636B2 (en) | Physical quantity sensor subassembly and physical quantity measuring device | |
| CN2927026Y (en) | Sensor for inspecting inlet mainfold gas temperature and pressure of vehicle | |
| CN104024806A (en) | Method for operating an air mass sensor | |
| CN201034743Y (en) | Detecting air-intake divided manifold gas temperature and pressure sensor device for cars | |
| CN207300482U (en) | A kind of vehicle exhaust differential pressure pick-up | |
| CN2927027Y (en) | Temperature pressure sensor for vehicle | |
| CN202002671U (en) | Special man-machine environment monitoring system | |
| CN103791968A (en) | Temperature compensating circuit for air flow sensor | |
| CN202710094U (en) | Sensor service life prediction system for automobile | |
| CN204327346U (en) | Intake manifold |
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: 20130403 Termination date: 20141101 |
|
| EXPY | Termination of patent right or utility model |