Anti-interference refrigerant temperature sensor

Abstract

The utility model discloses an anti-interference refrigerant temperature sensor which comprises a sensor shell, the lower end of the sensor shell is fixedly connected with a detection probe, the upper end of the sensor shell is provided with a first sealing mechanism, the upper end of the detection probe is fixedly connected with a connecting cover, and the outer side surface of the upper end of the connecting cover is fixedly connected with an outer clamping head. A circuit board is fixedly installed in the sensor shell, electronic elements are fixedly connected to the side surface of the circuit board and comprise a resistor, a capacitor, an inductor, a diode, a triode and an integrated circuit, a wire is fixedly connected to the lower end of the circuit board, and a thermistor is fixedly connected to one end of the wire and located in the detection probe. The upper end of the circuit board is fixedly connected with a metal connecting pin. The temperature sensor solves the problem that a traditional temperature sensor is interfered by an electrical system and complex electronic elements and is self-heated when in use, reduces the detection error of the temperature sensor, improves the temperature detection precision, and avoids affecting the normal use of a vehicle by people.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature sensors, in particular to an anti-interference refrigerant temperature sensor. Background Art

[0002] A refrigerant temperature sensor is a device used to measure the refrigerant temperature in a refrigeration system. It senses changes in the refrigerant's temperature and converts them into electrical signals, allowing the control system to regulate and control the refrigeration system. The primary function of a refrigerant temperature sensor is to monitor and control the refrigerant's temperature, ensuring the proper operation of the refrigeration system.

[0003] Currently, most existing refrigerant sensors are installed on cars and are generally used in car thermal management systems to monitor the temperature of the car during driving, and can also detect the temperature under different media. However, with the advancement of technology, cars are constantly upgraded during the manufacturing process, among which the most upgraded is in artificial intelligence. Therefore, many electrical systems and many complex electronic components are installed on the car during manufacturing. As a result, traditional temperature sensors will be subject to various battery interferences during use, and may even self-heat. This will cause large errors in the temperature detection of the car, reduce the detection accuracy of the temperature sensor, and cause misjudgment of the car thermal management system, affecting people's normal use of the car. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides an anti-interference refrigerant temperature sensor, which solves the problem that traditional temperature sensors are subject to electromagnetic interference and self-heating from other electrical systems and complex electronic components in the vehicle during use. It also reduces the error in temperature sensor detection, improves the accuracy of temperature detection, and avoids affecting people's normal use of the vehicle.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an anti-interference refrigerant temperature sensor, comprising a sensor housing, a detection probe fixedly connected to the lower end of the sensor housing, and a first sealing mechanism provided at the upper end of the sensor housing, the upper end of the detection probe fixedly connected to a connecting cover, and the outer surface of the upper end of the connecting cover fixedly connected to an external card connector, a circuit board fixedly installed inside the sensor housing, and electronic components fixedly connected to the side surface of the circuit board, the electronic components including resistors, capacitors, inductors, diodes, triodes, and integrated circuits, a wire fixedly connected to the lower end of the circuit board, and one end of the wire fixedly connected to a thermistor, the thermistor is located inside the detection probe, a metal connecting pin fixedly connected to the upper end of the circuit board, and the upper end of the metal connecting pin passes through the bottom of the connecting cover and is located on the inner side of the connecting cover, a snap assembly is provided on the outer side of the connecting cover, and a threaded connection portion is provided on the outer surface of the sensor housing.

[0006] Preferably, the first sealing mechanism includes a card slot, and the card slot is located on the outer surface of the sensor housing, and an outer sealing ring is fixed inside the card slot.

[0007] Preferably, a cavity is provided inside the detection probe, and the interior of the cavity is filled with thermal conductive silicone grease.

[0008] Preferably, a groove I is provided on the inner side of the upper end of the sensor housing, and an inner sealing ring is fixedly installed on the inner wall of the groove I.

[0009] The utility model provides an anti-interference refrigerant temperature sensor. Compared with the existing technology, it has the following features:

[0010] Beneficial effects:

[0011] The circuit board installed inside the sensor housing, the electronic components installed on the side surface of the circuit board, and the thermistor at one end of the wire connected to one end of the circuit board cooperate with each other, thereby solving the problem of traditional temperature sensors being affected by electromagnetic interference and self-heating from other electrical systems and complex electronic components in the car during use. It also reduces the error in temperature sensor detection, improves the accuracy of temperature detection, and avoids affecting people's normal use of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of part of the internal structure of the sensor housing in the present invention;

[0014] Figure 3 This is a schematic diagram of the circuit board structure in this utility model.

[0015] In the figure: 1. Sensor housing; 101. Metal connecting pin; 102. Groove I; 103. Inner sealing ring; 2. Detection probe; 3. Outer sealing ring; 4. Card slot; 5. Connection cover; 6. External card connector; 7. Circuit board; 701. Electronic component; 702. Wire; 703. Thermistor. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1-3The utility model provides a technical solution: an anti-interference refrigerant temperature sensor, comprising a sensor housing 1, a detection probe 2 is fixedly connected to the lower end of the sensor housing 1, and a first sealing mechanism is provided at the upper end of the sensor housing 1, the upper end of the detection probe 2 is fixedly connected to a connecting cover 5, and the outer surface of the upper end of the connecting cover 5 is fixedly connected to an external card connector 6, a circuit board 7 is fixedly installed inside the sensor housing 1, and an electronic component 701 is fixedly connected to the side surface of the circuit board 7, the electronic component 701 includes a resistor, a capacitor, an inductor, a diode, a triode, and an integrated circuit, a wire 702 is fixedly connected to the lower end of the circuit board 7, and one end of the wire 702 is fixedly connected to a thermistor 703, the thermistor 703 is located inside the detection probe 2, a metal connecting pin 101 is fixedly connected to the upper end of the circuit board 7, and the upper end of the metal connecting pin 101 passes through the bottom of the connecting cover 5 and is located on the inner side of the connecting cover 5, a snap assembly is provided on the outer side of the connecting cover 5, and a threaded connection portion is provided on the outer surface of the sensor housing 1.

[0018] As a technical optimization solution of the present invention, the first sealing mechanism includes a card slot 4, and the card slot 4 is located on the outer surface of the sensor housing 1. An outer sealing ring 3 is fixed inside the card slot 4, which can improve the sealing of the detection probe 2 after the sensor housing 1 is installed, thereby reducing the error of the sensor detection temperature.

[0019] As a technical optimization solution of the present invention, a cavity is opened inside the detection probe 2, and the interior of the cavity is filled with thermal grease, which can better conduct the temperature detected by the detection probe 2 to the thermistor 703 inside the detection probe 2, thereby reducing heat loss and improving the accuracy of temperature detection.

[0020] As a technical optimization solution of the present invention, a groove Ⅰ102 is opened on the inner side of the upper end of the sensor housing 1, and an inner sealing ring 103 is fixedly installed on the inner wall of the groove Ⅰ102, which can improve the sealing of the connection between the sensor housing 1 and the connecting cover 5 and further avoid heat loss.

[0021] When the present invention is in use, the sensor housing 1 is installed at a place where the temperature needs to be detected through the threaded connection part on the outside of the sensor housing 1, and then the vehicle computer is plugged together through the connection cover 5 on the upper end of the sensor housing 1. At this time, the vehicle computer connector will be inserted into the inside of the connection cover 5 and then connected to the metal connecting pin 101. At this time, the temperature of the vehicle can be detected by the detection probe 2. At the same time, the thermistor 703 at one end of the internal wire 702 of the sensor housing 1 will transmit the temperature detected by the detection probe 2 to the circuit board 7. At this time, the circuit board 7 transmits it to the vehicle computer through the metal connecting pin 101, so the vehicle computer will display the temperature on the vehicle. When the temperature data is transmitted to the vehicle computer, it is processed by the electronic component 701 on the circuit board 7 to avoid interference from other electronic components on the vehicle, so that the data can be accurately transmitted to the vehicle computer.

[0022] At the same time, the contents not described in detail in this specification belong to the existing technology well known to those skilled in the art.

[0023] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations. The phrase "includes an element defined by..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

Claims

1. An anti-interference refrigerant temperature sensor, comprising a sensor housing (1), characterized in that: The lower end of the sensor housing (1) is fixedly connected to a detection probe (2), and the upper end of the sensor housing (1) is provided with a first sealing mechanism, the upper end of the detection probe (2) is fixedly connected to a connection cover (5), and the outer surface of the upper end of the connection cover (5) is fixedly connected to an external card connector (6), the interior of the sensor housing (1) is fixedly installed with a circuit board (7), and the side surface of the circuit board (7) is fixedly connected to an electronic component (701), the electronic component (701) includes a resistor, a capacitor, an inductor, a diode, a transistor, an integrated circuit, a CMOS circuit board, and a CMOS circuit board. The circuit comprises a circuit, wherein the lower end of the circuit board (7) is fixedly connected to a wire (702), and one end of the wire (702) is fixedly connected to a thermistor (703), and the thermistor (703) is located inside the detection probe (2); the upper end of the circuit board (7) is fixedly connected to a metal connecting pin (101), and the upper end of the metal connecting pin (101) passes through the bottom of the connecting cover (5) and is located inside the connecting cover (5); a snap assembly is provided on the outside of the connecting cover (5), and a threaded connection portion is provided on the outer surface of the sensor housing (1).

2. The anti-interference refrigerant temperature sensor according to claim 1, characterized in that: The first sealing mechanism comprises a card slot (4), and the card slot (4) is located on the outer surface of the sensor housing (1), and an outer sealing ring (3) is fixed inside the card slot (4).

3. The anti-interference refrigerant temperature sensor according to claim 1, characterized in that: A cavity is provided inside the detection probe (2), and the interior of the cavity is filled with thermally conductive silicone grease.

4. The anti-interference refrigerant temperature sensor according to claim 1, characterized in that: A groove I (102) is provided on the inner side of the upper end of the sensor housing (1), and an inner sealing ring (103) is fixedly mounted on the inner wall of the groove I (102).

Images