CN211577090U - Atmospheric environment sensor for vehicle - Google Patents
Atmospheric environment sensor for vehicle Download PDFInfo
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- CN211577090U CN211577090U CN201922038047.8U CN201922038047U CN211577090U CN 211577090 U CN211577090 U CN 211577090U CN 201922038047 U CN201922038047 U CN 201922038047U CN 211577090 U CN211577090 U CN 211577090U
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Abstract
The utility model relates to an automotive atmospheric environment sensor for the measurement of pipeline internal pressure, temperature and humidity between the low reaches of car air cleaner (ordinary pressure) and the upper reaches of booster or fuel entry belongs to sensor detection device field. The utility model discloses mainly adopt shell subassembly and cover connection to constitute wholly, main printed circuit board installs at shell subassembly inner chamber, and the mode through the soldering links to each other with the interior inserted sheet of shell subassembly, and vice printed circuit board passes through the mode of soldering and links to each other with main printed circuit board is perpendicular, and O type sealing washer is installed on the apron, and is sealed when guaranteeing to install. The utility model has simple, compact and reasonable structure; the sensor has the characteristics of good electromagnetic compatibility, overvoltage reverse connection protection, high temperature resistance, high precision, long service life, low cost and the like, can ensure reliable realization of product functions, and ensures the performance and quality of products, thereby completely meeting the requirements of automobile manufacturers on atmospheric environment sensors.
Description
Technical Field
The utility model relates to a sensor, specifically speaking are automotive atmospheric environment sensor for the measurement of pipeline internal pressure, temperature and humidity between the low reaches of car air cleaner (ordinary pressure) and the upper reaches of booster or fuel entry belongs to sensor detection device field.
Background
The atmospheric environment sensor for vehicle is a gas sensor component for measuring electric control engine, it can transmit signal to ECU component by measuring air intake pressure, temperature and humidity of air entering engine cylinder, and can utilize ECU to synthesize other sensor data to correct air-fuel ratio value. At present, the domestic automobile industry still widely adopts an imported atmospheric environment sensor, the cost is high, and the electrical performance parameters of enterprises with small purchase amount cannot be customized. With the development of the domestic automobile electronic industry, the imported atmospheric environment sensor cannot meet the cost and customization requirements of domestic host computer factories, and the domestic automobile atmospheric environment sensor is urgently required to be developed and replaced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects, thereby providing the atmospheric environment sensor for the vehicle, which can reduce the product cost and completely replace an inlet part; the electrical performance parameters can be customized, and the nonstandard requirements of partial host factories can be completely met.
The utility model adopts the technical proposal that: an atmospheric environment sensor for a vehicle comprises a shell sub-assembly, a cover plate, a main printed circuit board, an auxiliary printed circuit board and an inner insertion piece; the shell sub-assembly is of a multi-cavity structure and comprises a first cavity and a second cavity; the cover plate is nested at an opening of the first cavity, the main printed circuit board is arranged in the first cavity, the inner insertion piece is arranged in the second cavity, the auxiliary printed circuit board is vertically connected with the main printed circuit board in a soldering mode and extends outwards through a sleeve arranged in the middle of the cover plate, and a small hole is formed in the tail end of the sleeve.
Furthermore, an automobile-specific integrated pressure chip and a temperature and humidity chip are arranged on the auxiliary printed circuit board, a single chip microcomputer is arranged on the main printed circuit board, the output end of the automobile-specific integrated pressure chip is connected with the input end of the single chip microcomputer through a wire, the output end of the temperature and humidity chip is connected with the input end of the single chip microcomputer through a wire, and the signal output end of the single chip microcomputer is connected with a CAN transceiver through a wire to output a CAN signal containing pressure, temperature and humidity information;
the integrated pressure chip special for the automobile converts the pressure signal into an electric signal, the output end of the integrated pressure chip is connected with the input end of the single chip microcomputer, and the digital signal corresponding to the atmospheric pressure is output after the processing of the single chip microcomputer;
the temperature and humidity chip converts the temperature signal and the humidity signal into electric signals, the output end of the temperature and humidity chip is connected with the input end of the single chip microcomputer, and digital signals corresponding to the atmospheric humidity and the atmospheric temperature are output after being processed by the single chip microcomputer.
Furthermore, an O-shaped sealing ring is arranged on the outer ring of the sleeve, so that sealing during installation is guaranteed.
The utility model has the advantages and the characteristics that:
the utility model has simple, compact and reasonable structure; the sensor has the characteristics of good electromagnetic compatibility, overvoltage reverse connection protection, high temperature resistance, high precision, long service life, low cost and the like, can ensure reliable realization of product functions, and ensures the performance and quality of products, thereby completely meeting the requirements of automobile manufacturers on atmospheric environment sensors.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a block schematic diagram of the control circuit of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
an atmospheric environment sensor for a vehicle comprises a shell sub-assembly 1, a cover plate 2, a main printed circuit board 3, an auxiliary printed circuit board 4 and an inner inserting sheet 6; the shell sub-assembly 1 is of a multi-cavity structure and comprises a first cavity 1-1 and a second cavity 1-2; the cover plate 2 is nested at an opening of the first cavity 1-1, the main printed circuit board 3 is arranged in the first cavity 1-1, the inner inserting piece 6 is arranged in the second cavity 1-2, the auxiliary printed circuit board 4 is vertically connected with the main printed circuit board 3 in a soldering mode and extends outwards through the sleeve 2-1 arranged in the middle of the cover plate 2, the tail end of the sleeve 2-1 is provided with a small hole 2-2, and the O-shaped sealing ring 5 is arranged on the cover plate to ensure sealing during installation.
The auxiliary printed circuit board 4 is provided with an automobile-specific integrated pressure chip 4-1 and a temperature and humidity chip 4-2, the main printed circuit board 3 is provided with a single chip microcomputer 3-1, the output end of the automobile-specific integrated pressure chip 4-1 is connected with the input end of the single chip microcomputer 3-1 through a lead, the output end of the temperature and humidity chip 4-2 is connected with the input end of the single chip microcomputer 3-1 through a lead, and the signal output end of the single chip microcomputer 3-1 is connected with a CAN transceiver through a lead to output a CAN signal containing pressure, temperature and humidity information;
the integrated pressure chip 4-1 special for the automobile converts a pressure signal into an electric signal, the output end of the integrated pressure chip is connected with the input end of the single chip microcomputer, and a digital signal corresponding to the atmospheric pressure is output after the digital signal is processed by a program of the single chip microcomputer;
the temperature and humidity chip 4-2 converts the temperature signal and the humidity signal into electric signals, the output end of the temperature and humidity chip is connected with the input end of the single chip microcomputer, and digital signals corresponding to the atmospheric humidity and the atmospheric temperature are output after being processed by the single chip microcomputer.
The utility model discloses mainly adopt shell subassembly and cover connection to constitute wholly, main printed circuit board installs at shell subassembly inner chamber, and the mode through the soldering links to each other with the interior inserted sheet of shell subassembly, and vice printed circuit board passes through the mode of soldering and links to each other with main printed circuit board is perpendicular, and O type sealing washer is installed on the apron, and is sealed when guaranteeing to install.
The integrated pressure chip special for the automobile converts the pressure signal into an electric signal, the output end of the integrated pressure chip is connected with the input end of the single chip microcomputer, and the digital signal corresponding to the atmospheric pressure is output after the processing of the single chip microcomputer;
the temperature and humidity chip converts the temperature signal and the humidity signal into electric signals, the output end of the temperature and humidity chip is connected with the input end of the single chip microcomputer, and digital signals corresponding to the atmospheric humidity and the atmospheric temperature are output after being processed by the single chip microcomputer;
the air filter is arranged in front of the carburetor or the air inlet pipe, plays a role in filtering dust and sand grains in air and ensures that sufficient and clean air enters the air cylinder;
the supercharger is actually an air compressor that increases the intake air amount by compressing air. The turbine in the turbine chamber is pushed by the inertia impulse force of the exhaust gas discharged by the engine, the turbine drives a coaxial impeller, and the impeller pumps the air sent by an air filter pipeline to pressurize the air to enter an air cylinder;
the utility model discloses a theory of operation: clean air's pressure passes through the special integral type pressure chip of car in the pipeline and turns into analog signal to pressure signal, and clean air's temperature and humidity pass through the humiture chip and turn into temperature and humidity signal digital signal, and the signal of telecommunication of two kinds of chip output simultaneously is inputed to the singlechip and is handled, and singlechip output CAN control signal to CAN transceiver, the CAN signal that contains pressure, temperature, humidity information that final output ECU CAN discern. The bottleneck that the cost of the imported atmospheric environment sensor is high and the electrical performance parameters can not be customized is broken through, and the method is more suitable for the development of the automobile industry.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description of the above embodiments and the description is only for the purpose of illustrating the structural relationships and principles of the present invention, and that there can be various changes and modifications without departing from the spirit and scope of the present invention, and that these changes and modifications all fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. An atmospheric environmental sensor for a vehicle, characterized in that: comprises a shell sub-assembly (1), a cover plate (2), a main printed circuit board (3), an auxiliary printed circuit board (4) and an inner inserting sheet (6); the shell sub-assembly (1) is of a multi-cavity structure and comprises a first cavity (1-1) and a second cavity (1-2); the cover plate (2) is nested at an opening of the first cavity (1-1), the main printed circuit board (3) is installed in the first cavity (1-1), the inner insertion piece (6) is installed in the second cavity (1-2), the auxiliary printed circuit board (4) is vertically connected with the main printed circuit board (3) in a soldering mode and extends outwards through the sleeve (2-1) arranged in the middle of the cover plate (2), and the tail end of the sleeve (2-1) is provided with a small hole (2-2).
2. The atmospheric-environment sensor of claim 1, wherein: the auxiliary printed circuit board (4) is provided with an automobile-specific integrated pressure chip (4-1) and a temperature and humidity chip (4-2), the main printed circuit board (3) is provided with a single chip microcomputer (3-1), the output end of the automobile-specific integrated pressure chip (4-1) is connected with the input end of the single chip microcomputer (3-1) through a wire, the output end of the temperature and humidity chip (4-2) is connected with the input end of the single chip microcomputer (3-1) through a wire, and the signal output end of the single chip microcomputer (3-1) is connected with a CAN transceiver through a wire to output a CAN signal containing pressure, temperature and humidity;
the integrated pressure chip (4-1) special for the automobile converts a pressure signal into an electric signal, the output end of the integrated pressure chip is connected with the input end of the single chip microcomputer, and a digital signal corresponding to the atmospheric pressure is output after the digital signal is processed by a program of the single chip microcomputer;
the temperature and humidity chip (4-2) converts the temperature signal and the humidity signal into electric signals, the output end of the temperature and humidity chip is connected with the input end of the single chip microcomputer, and digital signals corresponding to the atmospheric humidity and the atmospheric temperature are output after being processed by the single chip microcomputer.
3. The atmospheric-environment sensor of claim 1, wherein: an O-shaped sealing ring (5) is arranged on the outer ring of the sleeve (2-1) to ensure sealing during installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922038047.8U CN211577090U (en) | 2019-11-22 | 2019-11-22 | Atmospheric environment sensor for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922038047.8U CN211577090U (en) | 2019-11-22 | 2019-11-22 | Atmospheric environment sensor for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211577090U true CN211577090U (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922038047.8U Active CN211577090U (en) | 2019-11-22 | 2019-11-22 | Atmospheric environment sensor for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211577090U (en) |
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2019
- 2019-11-22 CN CN201922038047.8U patent/CN211577090U/en active Active
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