CN203519065U - Intake-air temperature and manifold pressure sensor - Google Patents
Intake-air temperature and manifold pressure sensor Download PDFInfo
- Publication number
- CN203519065U CN203519065U CN201320685794.0U CN201320685794U CN203519065U CN 203519065 U CN203519065 U CN 203519065U CN 201320685794 U CN201320685794 U CN 201320685794U CN 203519065 U CN203519065 U CN 203519065U
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- pressure sensor
- air temperature
- intake air
- manifold pressure
- temperature
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Abstract
The utility model discloses an intake-air temperature and manifold pressure sensor. The intake-air temperature and manifold pressure sensor comprises a housing, a sealing cover, a temperature sensor and a pressure sensor. The sealing cover is fixedly arranged on the housing and thus a sealed accommodation cavity is formed. The accommodation cavity is internally provided with a circuit board. One side of the housing is provided with a signal output and power interface. The pin of the signal output and power interface is connected with the circuit board fixedly arranged in the housing. The temperature sensor and the pressure sensor are welded on the circuit board. The intake-air temperature and manifold pressure sensor enables the temperature sensor and the pressure sensor to be integrated into one piece; temperature-voltage linearity is good; and linearity range is wide.
Description
Technical field
The utility model relates to a kind of novel sensor for automobile or motorcycle engine control system, particularly relates to a kind of intake air temperature and manifold pressure sensor.
Background technology
Along with the enforcement of motorcycle exhaust discharge GuoⅢHe motor vehicle exhaust emission state IV standard, electronic fuel injection technology is progressively applied.Intake air temperature and manifold pressure sensor are installed in motorcycle or automobile engine system conventionally.This sensor changes temperature signal, pressure signal into respectively voltage signal and is transferred to control unit of engine the inside, control unit of engine calculates air inflow according to these two voltage signals again, then calculate the accurate duration of ignition and Control Nozzle oil mass, thereby raising engine efficiency, reduces oil consumption and controls discharge.
Temperature sensor adopts the thermistor of negative temperature coefficient (NTC) conventionally; Pressure transducer adopts chip or the nude film of the resistance bridge forming based on force sensing resistance conventionally.Therefore, temperature-voltage curve has significantly non-linear, at more than 50 ℃ interval curve, becomes gently, makes troubles to the signal measurement of engine controller.
Utility model content
The technical problems to be solved in the utility model is to provide that a kind of linearity is good, cost is low, convenient for maintaining and maintenance can be simultaneously the sensor of collecting temperature signal and pressure signal automatically.
For addressing the above problem, the utility model provides a kind of intake air temperature and manifold pressure sensor, described intake air temperature and manifold pressure sensor comprise housing, gland bonnet, temperature sensor and pressure transducer, described gland bonnet is fixed on described housing, form airtight container cavity, in described container cavity, be provided with circuit board, one side of described housing is provided with a signal output and power interface, signal output is connected with the circuit board in being fixed on housing with the stitch of power interface, and described temperature sensor and pressure transducer are welded on circuit board.
Further, described temperature sensor is thermistor and linearizer, and described pressure transducer is pressure chip.
Further, described linearizer is the circuit that discrete component is built
Further, described linearizer is chip piece.
Further, described linearizer and pressure chip are an integrated chip.
Further, described integrated chip output temperature signal and pressure signal,
Further, described integrated chip output digit signals, described digital signal timesharing ground comprises Temperature numerical and pressure value.
Further, described circuit board is fixed on housing by the mode of spot welding.
Further, between housing and gland bonnet, adopt sealant sealing.
The utility model intake air temperature and manifold pressure sensor become one pressure transducer and temperature sensor, can meet the requirement of automatic collecting temperature signal and pressure signal simultaneously, have compact conformation, volume is little, lightweight, highly sensitive, good linearity, the range of linearity is wide, and cost is low, the feature that reliability is high, is applicable to motorcycle or the automobile of electronic fuel injection.
Accompanying drawing explanation
Fig. 1 is the STRUCTURE DECOMPOSITION schematic diagram of the utility model intake air temperature and manifold pressure sensor better embodiment.
Fig. 2 is the upward view of Fig. 1 intake air temperature and manifold pressure sensor.
Fig. 3 is pressure transducer and the scheme of installation of temperature sensor on circuit board.
Fig. 4 is the circuit theory diagrams of the utility model embodiment 1.
Fig. 5 is the circuit theory diagrams of the utility model embodiment 2.
Fig. 6 is the circuit theory diagrams of the utility model embodiment 3.
Fig. 7 is the temperature-voltage curve of existing intake air temperature and manifold pressure sensor.
Fig. 8 is the temperature-voltage curve of the utility model intake air temperature and manifold pressure sensor.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment 1
As shown in Figure 1 to Figure 3, the utility model intake air temperature and manifold pressure sensor better embodiment comprise housing 4, gland bonnet 1, temperature sensor and pressure transducer 3.Described gland bonnet 1 is fixed on described housing 4, form airtight container cavity, in described container cavity, be provided with circuit board 2, the bottom of described housing 4 offers to be detected hole 10 and gathers hole, the probe of described pressure transducer 3 is positioned at described detection hole 10, and the probe of described temperature sensor is positioned at described collection hole.One side of described housing 4 is provided with a signal output and power interface 9, and signal output is electrically connected with circuit board 2 with the stitch 5 of power interface 9, and circuit board 2 utilizes signal output to be connected with the controller of engine by wire harness with power interface 9.Described temperature sensor and pressure transducer 3 are welded on circuit board 2, and simultaneous temperature sensor and pressure transducer 3 are electrically connected to circuit board 2.
Described temperature sensor is thermistor 7 and linearizer 8, and described pressure transducer 3 is pressure chip, and the below of pressure transducer 3 is for detecting hole 10; The detecting head that detects hole 10 and thermistor 7 is all positioned at the air intake opening of air throttle valve block, and in other embodiments, the detecting head that detects hole 10 and thermistor 7 also can be positioned at the gas outlet of air throttle valve block.
For making housing 4 and gland bonnet 1 seal better, between housing 4 and gland bonnet 1, adopt sealant sealing.The mode of circuit board 2 use spot welding is fixed on housing 4.O-ring seal 6 seals during for this installation of sensors and between inlet manifold, and the information that its this sensor is detected is more accurate.Please refer to Fig. 4, described linearizer 8 is chip pieces, and in other embodiments, described linearizer 8 can be also the circuit that discrete component is built.Temperature sensor output temperature signal, pressure transducer 3 output pressure signals.
As shown in Figure 7, existing intake air temperature and manifold pressure sensor temperature-voltage curve have significantly non-linear, at more than 50 ℃ interval curve, become gently, make troubles to the signal measurement of engine controller.Please refer to Fig. 8, the utility model intake air temperature and manifold pressure sensor are owing to adopting linearizer 8, and temperature-voltage curve linearity is good, and the range of linearity is wide.
The utility model intake air temperature and manifold pressure sensor only need leave pilot hole and temperature, pressure and gather hole in inlet manifold, with screw, through pilot hole, just it can be installed in inlet manifold.
As shown in Figure 5, embodiment 2 and embodiment 1 be with part, and described linearizer and pressure chip are an integrated chip 15, institute and state integrated chip 15 output temperature signal and pressure signals.
As shown in Figure 6, embodiment 3 difference from Example 1 are, described linearizer and pressure chip are an integrated chip 16, described integrated chip 16 output digit signals, for example SENT agreement.Described digital signal timesharing ground comprises Temperature numerical and pressure value.
The utility model intake air temperature and manifold pressure sensor adopt integrated design, be about to pressure transducer and temperature sensor and become one, can meet the requirement of automatic collecting temperature signal and pressure signal simultaneously, there is compact conformation, volume is little, lightweight, highly sensitive, good linearity, the range of linearity is wide, cost is low, and the feature that reliability is high is applicable to motorcycle or the automobile of electronic fuel injection.
These are only embodiment of the present utility model; not thereby limit the scope of the claims of the present invention; every equivalent structure that utilizes the utility model instructions and accompanying drawing content to do; directly or indirectly be used in other relevant technical fields, all in like manner within scope of patent protection of the present utility model.
Claims (9)
1. an intake air temperature and manifold pressure sensor, it is characterized in that: described intake air temperature and manifold pressure sensor comprise housing, gland bonnet, temperature sensor and pressure transducer, described gland bonnet is fixed on described housing, form airtight container cavity, in described container cavity, be provided with circuit board, one side of described housing is provided with a signal output and power interface, signal output and power interface and described circuit board are electrically connected, and described temperature sensor and pressure transducer are welded on circuit board and with circuit board and are electrically connected to.
2. intake air temperature as claimed in claim 1 and manifold pressure sensor, is characterized in that: described temperature sensor is thermistor and linearizer, and described pressure transducer is pressure chip.
3. intake air temperature according to claim 2 and manifold pressure sensor, is characterized in that: described linearizer is the circuit that discrete component is built.
4. intake air temperature according to claim 2 and manifold pressure sensor, is characterized in that: described linearizer is chip piece.
5. intake air temperature according to claim 2 and manifold pressure sensor, is characterized in that: described linearizer and pressure chip are an integrated chip.
6. intake air temperature according to claim 5 and manifold pressure sensor, is characterized in that: described integrated chip output temperature signal and pressure signal.
7. intake air temperature according to claim 5 and manifold pressure sensor, is characterized in that: described integrated chip output digit signals, described digital signal timesharing ground comprises Temperature numerical and pressure value.
8. intake air temperature as claimed in claim 1 and manifold pressure sensor, is characterized in that: described circuit board is fixed on housing by the mode of spot welding.
9. intake air temperature as claimed in claim 1 and manifold pressure sensor, is characterized in that: between housing and gland bonnet, adopt sealant sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320685794.0U CN203519065U (en) | 2013-11-01 | 2013-11-01 | Intake-air temperature and manifold pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320685794.0U CN203519065U (en) | 2013-11-01 | 2013-11-01 | Intake-air temperature and manifold pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203519065U true CN203519065U (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320685794.0U Expired - Fee Related CN203519065U (en) | 2013-11-01 | 2013-11-01 | Intake-air temperature and manifold pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203519065U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101668A (en) * | 2017-05-10 | 2017-08-29 | 芜湖力锐达汽车部件有限公司 | One kind collection automobile and motorcycle temperature, pressure angle add flow control sensor |
| CN107389136A (en) * | 2017-08-28 | 2017-11-24 | 浙江沃得尔科技股份有限公司 | A kind of inlet manifold sensor construction |
| CN108106775A (en) * | 2017-12-13 | 2018-06-01 | 芜湖致通汽车电子有限公司 | A kind of temperature and pressure transmitter |
| CN110863911A (en) * | 2018-08-27 | 2020-03-06 | 福爱电子(贵州)有限公司 | Integrated air inlet mechanism of electronic injection gasoline engine |
| CN117664232A (en) * | 2023-12-05 | 2024-03-08 | 华世德电子科技(昆山)有限公司 | A composite sensor and detection device |
-
2013
- 2013-11-01 CN CN201320685794.0U patent/CN203519065U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101668A (en) * | 2017-05-10 | 2017-08-29 | 芜湖力锐达汽车部件有限公司 | One kind collection automobile and motorcycle temperature, pressure angle add flow control sensor |
| CN107389136A (en) * | 2017-08-28 | 2017-11-24 | 浙江沃得尔科技股份有限公司 | A kind of inlet manifold sensor construction |
| CN108106775A (en) * | 2017-12-13 | 2018-06-01 | 芜湖致通汽车电子有限公司 | A kind of temperature and pressure transmitter |
| CN110863911A (en) * | 2018-08-27 | 2020-03-06 | 福爱电子(贵州)有限公司 | Integrated air inlet mechanism of electronic injection gasoline engine |
| CN117664232A (en) * | 2023-12-05 | 2024-03-08 | 华世德电子科技(昆山)有限公司 | A composite sensor and detection device |
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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: 20140402 Termination date: 20141101 |
|
| EXPY | Termination of patent right or utility model |