CN-224216668-U - Sensor, vehicle control system and vehicle

Abstract

The invention relates to the technical field of vehicles, in particular to a sensor, a vehicle control system and a vehicle, wherein the sensor comprises a shell, a humidity-sensitive chip and a waterproof ventilation piece, and the shell is provided with an inner cavity and ventilation holes communicated with the inner cavity; the moisture-sensitive chip is arranged in the inner cavity, and the waterproof ventilation piece is arranged in the shell to seal the ventilation holes. When the sensor disclosed by the disclosure is used, gas in the environment enters the inner cavity of the shell through the air holes, and the humidity of the gas in the inner cavity is detected by the humidity-sensitive chip. Through set up the waterproof ventilative spare of shutoff bleeder vent at the casing for the gas in the environment can pass the bleeder vent and get into the inner chamber in and prevent debris such as liquid, dust in the environment to pass the bleeder vent, thereby with debris such as liquid, dust stop in the outside of casing, guarantee that the sensor can be applied to the environment that has debris such as liquid, dust, improved the adaptability of sensor, make the sensor can be applicable to the humidity detection of internal-combustion engine system.

Inventors

• ZHANG JINXIN

Assignees

• 小米汽车科技有限公司

Dates

Publication Date

20260508

Application Date

20250418

Claims (15)

1. 1. A sensor for the use in a medical device, characterized by comprising the following steps: The shell is provided with an inner cavity and an air hole communicated with the inner cavity; The humidity-sensitive chip is arranged in the inner cavity; The waterproof ventilation piece is arranged on the shell to seal the ventilation holes.
2. 2. The sensor of claim 1, wherein the moisture sensitive chip is opposite the vent, the moisture sensitive chip being spaced a predetermined distance from the waterproof vent.
3. 3. The sensor of claim 1, wherein a circuit board is further disposed in the interior cavity, and the humidity sensitive chip is disposed on the circuit board.
4. 4. The sensor of claim 3, wherein a temperature sensitive chip is further disposed in the inner cavity, and the temperature sensitive chip is disposed on the circuit board and is staggered with the ventilation holes.
5. 5. The sensor of claim 3, wherein the humidity sensitive chip comprises a detection end and a connection end, the detection end is opposite to the ventilation hole, and the connection end is connected with the circuit board; the inner cavity comprises a first space and a second space, the air holes are communicated with the first space, the detection end is located in the first space, the second space is separated from the first space, and the circuit board and the connection end are located in the second space.
6. 6. The sensor of claim 5, wherein a seal is disposed in the interior cavity, the seal surrounding the circuit board to divide the interior of the interior cavity into the first space and the second space.
7. 7. The sensor of claim 6, wherein a sealing sleeve is disposed in the inner cavity, the sealing sleeve is sleeved outside the humidity sensitive chip, the detection end is exposed to one end of the sealing sleeve, and the other end of the sealing sleeve is wrapped by the sealing body.
8. 8. The sensor of claim 6, wherein the housing comprises a bottom shell and a cover plate, the cover plate is connected with the bottom shell and encloses the inner cavity, and a portion of the sealing body is arranged at a connection position of the cover plate and the bottom shell.
9. 9. The sensor of claim 6, further comprising an electrical connector having a first end electrically connected to the circuit board and a second end for electrically connecting to an external connector, the seal surrounding the first end of the electrical connector.
10. 10. The sensor of claim 9, wherein the housing further comprises a mounting portion for mounting the sensor, and wherein the second end of the electrical connector is disposed on the mounting portion.
11. 11. The sensor of any one of claims 6-10, wherein the seal comprises a sealant.
12. 12. The sensor of any one of claims 1-10, wherein the waterproof and breathable member comprises a waterproof and breathable membrane disposed in the interior cavity.
13. 13. A vehicle control system, characterized by comprising: A sensor according to any one of claims 1 to 12 for detecting an intake air temperature and humidity of an engine; The control system is in signal connection with the sensor; An exhaust gas recirculation system, the control system being in signal connection with the exhaust gas recirculation system; And the control system adjusts the working condition of the exhaust gas recirculation system according to the temperature and humidity of the inlet air of the engine detected by the sensor.
14. 14. A vehicle control system, characterized by comprising: a sensor according to any one of claims 1 to 12 for detecting the temperature and humidity of the interior of a vehicle; The control system is in signal connection with the sensor; The air conditioning system is in signal connection with the control system; And the control system adjusts the working condition of the air conditioning system according to the temperature and humidity of the air inlet in the vehicle detected by the sensor.
15. 15. A vehicle comprising a sensor according to any one of claims 1-12, and/or a vehicle control system according to claim 13, and/or a vehicle control system according to claim 14.

Description

Sensor, vehicle control system and vehicle Technical Field The disclosure relates to the technical field of vehicles, in particular to a sensor, a vehicle control system and a vehicle. Background A sensor is generally provided on a vehicle to detect gas at a specific location to improve the performance of the vehicle. Currently, there is no humidity sensor dedicated to an internal combustion engine system, so that the internal combustion engine system cannot be detected in humidity, and therefore, there is a need to design a humidity sensor that can be applied to an internal combustion engine system. Disclosure of utility model The present disclosure proposes a sensor for humidity detection of an internal combustion engine system. The sensor comprises a shell, a humidity-sensitive chip and a waterproof ventilation piece, wherein the shell is provided with an inner cavity and ventilation holes communicated with the inner cavity, the humidity-sensitive chip is arranged in the inner cavity, and the waterproof ventilation piece is arranged on the shell to seal the ventilation holes. Optionally, the humidity-sensitive chip is opposite to the ventilation hole, and the humidity-sensitive chip is spaced a predetermined distance from the waterproof ventilation member. Optionally, a circuit board is further arranged in the inner cavity, and the humidity-sensitive chip is arranged on the circuit board. Optionally, a temperature-sensitive chip is further arranged in the inner cavity, and the temperature-sensitive chip is arranged on the circuit board and staggered with the air holes. Optionally, the humidity-sensitive chip comprises a detection end and a connection end, wherein the detection end is opposite to the air vent, the connection end is connected with the circuit board, the inner cavity comprises a first space and a second space, the air vent is communicated with the first space, the detection end is located in the first space, the second space is separated from the first space, and the circuit board and the connection end are located in the second space. Optionally, a sealing body is disposed in the inner cavity, and the sealing body wraps the circuit board, so as to divide the interior of the inner cavity into the first space and the second space. Optionally, a sealing sleeve is arranged in the inner cavity, the sealing sleeve is sleeved outside the humidity-sensitive chip, the detection end is exposed to one end of the sealing sleeve, and the other end of the sealing sleeve is wrapped by the sealing body. Optionally, the casing includes drain pan and apron, the apron with the drain pan is connected and encloses into the inner chamber, the sealing body partly locate the junction of apron with the drain pan. Optionally, the sensor further comprises an electrical connector, a first end of the electrical connector is electrically connected with the circuit board, a second end of the electrical connector is electrically connected with the external connector, and the sealing body wraps the first end of the electrical connector. Optionally, the housing further includes a mounting portion, where the mounting portion is used for mounting the sensor, and the second end of the electrical connector is disposed on the mounting portion. Optionally, the mounting portion is provided with a mounting hole, and the mounting hole and the second end of the electrical connector are arranged at intervals. Optionally, the sealing body comprises a sealant. Optionally, the waterproof and breathable piece comprises a waterproof and breathable film arranged in the inner cavity. The present disclosure also proposes a vehicle control system. The vehicle control system comprises a sensor, a control system and an exhaust gas recirculation system, wherein the sensor is any one of the sensors, the sensor is used for detecting the air inlet temperature and humidity of an engine, the control system is in signal connection with the sensor, the control system is in signal connection with the exhaust gas recirculation system, and the control system adjusts the working condition of the exhaust gas recirculation system according to the air inlet temperature and humidity of the engine detected by the sensor. The present disclosure also proposes another vehicle control system. The vehicle control system comprises a sensor, an air conditioning system and a control system, wherein the sensor is any one of the sensors, the sensor is used for detecting the temperature and the humidity in the vehicle, the air conditioning system is in signal connection with the control system, the control system is in signal connection with the sensor, and the control system adjusts the working condition of the air conditioning system according to the temperature and the humidity of air entering the vehicle detected by the sensor. The present disclosure also proposes a vehicle. The vehicle of the present disclosure includes a sensor as described in any one of the above,