A car air-conditioning temperature and pressure sensor with high induction sensitivity and its production process

Abstract

The present invention discloses an automotive air-conditioning temperature and pressure sensor with high inductive sensitivity and a production process thereof, specifically relating to the field of sensor technology, comprising a sensor body, the front face of which is provided with a plug-in terminal, the outer face of which is provided with a first connecting sleeve, the front face of which is fixedly connected to the back face of a fixed frame. The present invention provides a fixed frame, a piston cylinder, a second piston cylinder, a contact plate, a push rod, a pull plate, a rubber sealing ring, and a plug-in terminal, so that the third piston plate drives the push rod to move closer to the wire, while the rubber sealing ring stably contacts and seals the wire end, while the pull plate supports the wire end, and the push rod can swing inside the fixed frame, achieving stable and tight clamping of the wire end while allowing for slight swing, ensuring stable contact with the plug-in terminal in the event of vibration, thereby ensuring stable connection and inductive sensitivity.

Description

Technical Field

[0001] The present invention relates to the technical field of sensors, and more particularly to an automobile air-conditioning temperature and pressure sensor with high inductive sensitivity and a production process thereof. Background Art

[0002] A sensor is a detection device that can sense the information being measured and convert the sensed information into electrical signals or other required forms of information output according to certain rules to meet the requirements of information transmission, processing, storage, display, recording and control.

[0003] Sensors are characterized by miniaturization, digitization, intelligence, multifunctionality, systematization, and networking. They are the primary link in achieving automatic detection and control. They are generally classified into ten categories based on their basic sensing functions: thermal sensors, light sensors, gas sensors, force sensors, magnetic sensors, humidity sensors, acoustic sensors, radiation sensors, color sensors, and taste sensors.

[0004] With the development of manufacturing technology and detection methods, the sensing sensitivity of the temperature and pressure sensors used in existing vehicle air conditioners is becoming more and more ideal.

[0005] Temperature and pressure monitoring of key components within a car is used to assist in determining vehicle condition. Temperature and pressure sensors are installed in the car's air conditioner or engine, and the connection process requires connecting wires to the sensors. However, significant vibration during vehicle operation can cause significant vibration and friction at the connection point between the wires and the sensor. Prolonged friction can damage the wires and even affect the stability of the connection between the wires and the sensor, impacting detection sensitivity and results. Therefore, a highly sensitive automotive air conditioner temperature and pressure sensor and production process are needed to address these issues. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides an automobile air-conditioning temperature and pressure sensor with high sensing sensitivity and a production process. The technical problem to be solved by the present invention is: the temperature and pressure sensor is installed in the automobile air-conditioning or engine position, and the connection process requires connecting the wire to the sensor. The car will experience relatively obvious shaking during the start-up and driving process, resulting in obvious shaking and friction at the connection position between the wire and the sensor. Long-term friction will cause damage to the wire and even affect the connection stability between the wire and the sensor, which will have a certain impact on the detection sensitivity and detection results.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a highly sensitive automotive air-conditioning temperature and pressure sensor, comprising a sensor body, a plug-in terminal disposed on the front of the sensor body, a first connecting sleeve disposed at the end of the plug-in terminal, the front of the first connecting sleeve being fixedly connected to the back of a fixing frame, and the front of the fixing frame being fixedly connected to the back of a second connecting sleeve;

[0008] Two first placement grooves are provided on the top surface of the first connecting sleeve, and a first piston cylinder is provided on the inner wall of the first placement groove. The air storage space on one side of the first piston cylinder is connected to one end of the intermediate tube;

[0009] Two first guide sleeves are provided through the bottom surface of the first piston cylinder, a positioning rod is passed through the inner wall of the first guide sleeve and is slidably connected, the top end of the positioning rod is fixedly connected to the first piston plate, the first piston plate is slidably connected to the inner wall of the first piston cylinder to form a piston structure, the inner wall of the top end of the first piston cylinder is fixedly connected to the top ends of the two first elastic components, and the bottom end of the first elastic component is fixedly connected to the first piston plate;

[0010] The other end of the intermediate tube is connected to the air storage space of the second piston cylinder, and the intermediate tube is clamped on the inner wall of the first connecting sleeve and the plug-in end, the second placement groove is opened on the front of the plug-in end, and the second piston cylinder is arranged on the inner wall of the second placement groove; the side wall of the front side of the second piston cylinder is penetrated by a second guide sleeve, and a moving rod is penetrated and slidably provided on the inner wall of the second guide sleeve, one end of the moving rod is fixedly connected to the back side of the contact plate, and the other end of the moving rod is fixedly connected to the front side of the second piston plate; the second piston plate is slidably connected to the inner wall of the second piston cylinder to form a piston structure, the back side of the second piston plate is fixedly connected to one end of the front side of the second elastic component, and one end of the back side of the second elastic component is fixedly connected to the back side of the inner wall of the second piston cylinder;

[0011] As a further solution of the present invention: the left and right side surfaces of the sensor body are fixedly connected to the opposite surfaces of the two connecting plates respectively.

[0012] As a further solution of the present invention: a sealing airbag is provided on the inner wall of the second connecting sleeve, the sealing airbag is connected to the second piston cylinder, and a plurality of supporting balls are provided on the inner wall of the second connecting sleeve.

[0013] As a further solution of the present invention: the air storage space of the second piston cylinder is connected to the piston tube.

[0014] As a further solution of the present invention: a connecting groove is provided on the inner wall of the fixed frame, and several piston cylinders are provided on the inner wall of the connecting groove. A push rod is provided in the piston cylinder, and a third piston plate is provided at the other end of the push rod. The third piston plate is slidably connected to the inner wall of the piston cylinder, and a pull plate is provided at the end of the push rod away from the piston cylinder. Several of the pull plates are provided on a rubber sealing ring, and the rubber sealing ring is provided in the connecting groove.

[0015] As a further solution of the present invention: the inner wall of the first piston cylinder is fixedly connected to the top ends of the two first elastic components, and the bottom ends of the first elastic components are fixedly connected to the first piston plate.

[0016] As a further solution of the present invention: the first piston plate is configured to be rectangular, and the second piston plate is configured to be rectangular.

[0017] As a further solution of the present invention: a control valve is provided on the first connecting sleeve, the control valve is connected to the two second piston cylinders, and the second piston cylinders are connected to the piston barrel through an air pipe.

[0018] A temperature and pressure sensor for an automobile air conditioner with high inductive sensitivity, the production process steps of which are as follows:

[0019] S1. Assemble the first connecting sleeve outside the plug-in end of the sensor body surface, and then embed the piston structure consisting of two second piston cylinders and a second piston plate, and the piston structure consisting of the first piston cylinder and a first piston plate, respectively, into one side of the plug-in end and the top of the first connecting sleeve;

[0020] S2. Assemble a fixing frame on the side of the first connecting sleeve, embed a piston structure consisting of a piston cylinder and a third piston plate into the fixing frame, and bond a rubber sealing ring to the ejector rod;

[0021] S3. Use the intermediate tube and the air pipe to embed into the plug-in end and the first connecting sleeve to respectively realize the communication between the second piston cylinder and the first piston cylinder and the piston cylinder. Glue the second connecting sleeve to the side of the fixed frame, and embed the control valve into the plug-in end and the upper side of the second piston cylinder to complete the assembly.

[0022] The beneficial effects of the present invention are:

[0023] 1. The present invention provides a fixed frame, a piston cylinder, a second piston cylinder, a contact plate, a push rod, a pull plate, a rubber sealing ring and a plug-in end, and directly inserts the end of the wire into the first connecting sleeve corresponding to the plug-in end. The end of the wire squeezes the contact plate to drive the second piston plate to move. The second piston plate squeezes the air inside the second piston cylinder into the piston cylinder through the trachea. The air inside the piston cylinder increases and the air pressure continues to increase. The air pressure exerts pressure on the third piston plate, so that the third piston plate drives the push rod to move close to the wire. At the same time, the rubber sealing ring stably contacts and seals the end of the wire. At the same time, the pull plate supports the end of the wire. At the same time, the push rod can shake inside the fixed frame, so as to achieve stable and tight clamping of the wire end while slightly shaking, ensuring stable contact with the plug-in end when vibration occurs, thereby ensuring stable connection and sensing sensitivity.

[0024] 2. The present invention provides a positioning rod, a first piston cylinder, a second piston cylinder, a first piston plate, a control valve and a fixing frame. When the end of the wire enters the first connecting sleeve, the second piston plate squeezes the gas inside the second piston cylinder and transfers it to the first piston cylinder, thereby moving the first piston plate and the positioning rod. The positioning rod is inserted into the corresponding hole of the wire end to limit the position of the wire, thereby preventing the wire from shaking back and forth at will and ensuring a more accurate and stable connection.

[0025] 3. The present invention provides a sealing airbag, a supporting ball and a second connecting sleeve. When the wire is plugged in, the contact plate is squeezed and moved. At this time, the second piston plate squeezes part of the gas transferred in the second piston cylinder into the sealing airbag. At this time, the sealing airbag expands, sealing the gap between the wire and the second connecting sleeve while supporting the wire to avoid obvious friction between the wire and the second connecting sleeve. When the wire shakes, the wire can be limited to avoid large shaking of the wire affecting the connection with the plug-in end, ensuring a stable and sealed connection of the wire while ensuring a safer connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention when viewed from above;

[0028] Figure 3 It is a schematic cross-sectional structure diagram of a three-dimensional fixing frame of the present invention;

[0029] Figure 4 This is an enlarged structural diagram of part A of the present invention;

[0030] Figure 5 It is a schematic diagram of a three-dimensional cross-sectional structure of the first piston cylinder of the present invention as viewed from the right;

[0031] Figure 6This is a schematic diagram of the three-dimensional structure of the rubber sealing ring of the present invention;

[0032] In the figure: 1. sensor body; 2. connecting plate; 3. plug-in end; 4. first connecting sleeve; 5. fixing frame; 6. second connecting sleeve; 7. sealing airbag; 8. supporting ball; 9. first placement groove; 10. first piston cylinder; 11. first piston plate; 12. positioning plug rod; 13. first guide sleeve; 14. first elastic component; 15. intermediate tube; 16. second piston cylinder; 17. second placement groove; 18. second piston plate; 19. moving rod; 20. contact plate; 21. second guide sleeve; 22. second elastic component; 23. connecting groove; 24. piston cylinder; 25. third piston plate; 26. push rod; 27. pull plate; 28. rubber sealing ring; 29. control valve. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0034] like Figure 1-6 As shown, the present invention provides an automobile air-conditioning temperature and pressure sensor with high inductive sensitivity, including a sensor body 1, a plug-in terminal 3 is provided on the front of the sensor body 1, a first connecting sleeve 4 is provided on the outside of the plug-in terminal 3, the front of the first connecting sleeve 4 is fixedly connected to the back of a fixing frame 5, and the front of the fixing frame 5 is fixedly connected to the back of a second connecting sleeve 6. By arranging the fixing frame 5, the first connecting sleeve 4 and the second connecting sleeve 6, the gap between the first connecting sleeve 4 and the second connecting sleeve 6 and the wire is squeezed and sealed to reduce friction. At the same time, the fixing frame 5 can support the wire at a position between the first connecting sleeve 4 and the second connecting sleeve 6.

[0035] Two first placement grooves 9 are defined on the top surface of the first connecting sleeve 4. A first piston cylinder 10 is disposed within the inner wall of the first placement grooves 9. The air storage space on one side of the first piston cylinder 10 communicates with one end of the intermediate tube 15. The first placement grooves 9 are used to provide stable support for the first piston cylinder 10 and to accommodate the positioning rod 12.

[0036] Two first guide sleeves 13 are provided through the bottom surface of the first piston cylinder 10, and a positioning rod 12 is passed through the inner wall of the first guide sleeve 13 and is slidably connected. The top end of the positioning rod 12 is fixedly connected to the first piston plate 11, and the first piston plate 11 is slidably connected to the inner wall of the first piston cylinder 10 to form a piston structure; the inner wall of the top end of the first piston cylinder 10 is fixedly connected to the top ends of the two first elastic components 14, and the bottom end of the first elastic component 14 is fixedly connected to the first piston plate 11.

[0037] By setting the first elastic component 14, when the gas flows out of the gas storage space inside the first piston cylinder 10, the first elastic component 14 can automatically control the first piston plate 11 and the positioning rod 12 to move upward, thereby realizing the separation of the holes of the positioning rod 12; by setting the positioning rod 12, when the positioning rod 12 contacts the preset hole at the end of the wire, the wire can be limited to avoid the wire from shaking back and forth at will, thereby ensuring relatively stable assembly and placement of the wire.

[0038] The other end of the intermediate tube 15 is connected to the gas storage space of the second piston cylinder 16. By providing the intermediate tube 15, the intermediate tube 15 is used to connect the first piston cylinder 10 and the second piston cylinder 16, facilitating the flow of gas inside the first piston cylinder 10 and the second piston cylinder 16. The intermediate tube 15 is clamped to the inner wall of the first connecting sleeve 4 and the plug end 3. A second placement groove 17 is provided on the front of the plug end 3. The second piston cylinder 16 is arranged on the inner wall of the second placement groove 17. A second guide sleeve 21 is provided through the side wall of the front of the second piston cylinder 16. A moving rod 19 is provided through the inner wall of the second guide sleeve 21 and is slidably provided. One end of the moving rod 19 is fixed to the back of the contact plate 20, and the other end of the moving rod 19 is fixedly connected to the front of the second piston plate 18. The second piston plate 18 is slidably connected to the inner wall of the second piston cylinder 16 to form a piston structure. The back of the second piston plate 18 is fixedly connected to one end of the front of the second elastic component 22, and one end of the back of the second elastic component 22 is fixedly connected to the back of the inner wall of the second piston cylinder 16.

[0039] The air storage space of the second piston cylinder 16 is connected to the piston tube 24. By setting a second elastic component 22, when the control valve 29 is opened and the gas inside the second piston cylinder 16 flows out, the second elastic component 22 drives the second piston plate 18 and the contact plate 20 to reset, so that it is convenient for the subsequent wire to be reassembled to smoothly realize the process of squeezing the contact plate 20; by setting a second guide sleeve 21 and a moving rod 19, the second guide sleeve 21 supports and limits the moving rod 19, ensuring that when the moving rod 19 is under pressure, the second piston plate 18 is smoothly and stably controlled to move back and forth with the pressure of the air storage space of the second piston cylinder 16.

[0040] The first piston plate 11 and the second piston plate 18 are rectangular. When the contact plate 20 is under pressure, the second piston plate 18 will not rotate inside the second piston cylinder 16. Similarly, the function of the first piston plate 11 is also that the contact plate 20 can be smoothly squeezed into the second placement groove 17. By setting the first piston cylinder 10 and the first piston plate 11, the gas inside the second piston cylinder 16 is transferred to the first piston cylinder 10. While the air pressure in the first piston cylinder 10 increases, the first piston plate 11 and the positioning rod 12 can be smoothly controlled to move downward, thereby realizing the downward movement of the positioning rod 12. A connecting groove 23 is provided on the inner wall of the fixed frame 5, and several piston cylinders 24 are provided on the inner wall of the connecting groove 23. A push rod 26 is provided in the piston cylinder 24, and a third piston plate 25 is provided at the other end of the push rod 26. The third piston plate 25 is slidably connected to the inner wall of the piston cylinder 24 to form a piston structure. The air storage space of the second piston cylinder 16 is connected to the air storage space of the piston cylinder 24. A pull plate 27 is provided at the end of the push rod 26 away from the piston cylinder 24. Several pull plates 27 are all provided on a rubber sealing ring 28, and the rubber sealing ring 28 is provided in the connecting groove 23.

[0041] The connecting groove 23 is used to place the piston cylinder 24, the pull plate 27 and the rubber sealing ring 28 to prevent the rubber sealing ring 28 from obstructing the insertion and assembly process of the wire. By arranging the piston cylinder 24, the third piston plate 25, the push rod 26 and the pull plate 27, when the internal pressure of the piston cylinder 24 increases, the third piston plate 25 and the pull plate 27 can be smoothly controlled to move away from the fixed frame 5, so as to control the pull plate 27 to support and limit the wire; by arranging the rubber sealing ring 28, the rubber sealing ring 28 can be driven by the pull plate 27 to contact the wire, and can simultaneously contact the wire and the connecting groove 23, ensuring that the wire is supported while being sealed.

[0042] like Figure 1 and Figure 2 As shown, the left and right side surfaces of the sensor body 1 are fixedly connected to the opposite surfaces of the two connecting plates 2 respectively, and a sealing airbag 7 is provided on the inner wall of the second connecting sleeve 6. The air storage space of the second piston cylinder 16 is connected to the air storage space of the sealing airbag 7. By providing the sealing airbag 7, the sealing airbag 7 expands and seals the second connecting sleeve 6 and the wire. At the same time, the sealing airbag 7 supports the wire and cushions the shaking of the wire to prevent the shaking of the wire from being transmitted to the end of the wire. The sealing airbag 7 is connected to the second piston cylinder 16.

[0043] like Figure 1 and Figure 5As shown, a control valve 29 is provided on the first connecting sleeve 4, and the control valve 29 is connected to the two second piston cylinders 16. By setting the control valve 29, the internal gas of the second piston cylinder 16 can be discharged after the control valve 29 is opened, so as to facilitate the reduction of the internal air pressure of the first piston cylinder 10, the piston cylinder 24 and the sealing airbag 7. A plurality of supporting balls 8 are provided on the inner wall of the second connecting sleeve 6. The supporting balls 8 support and guide the insertion and removal process of the wire to avoid the tilting friction of the wire, and at the same time ensure that the insertion process and the position of the plug-in end 3 correspond more accurately to the wire.

[0044] A production process for an automobile air-conditioning temperature and pressure sensor with high inductive sensitivity, comprising:

[0045] S1. Assemble the first connecting sleeve 4 outside the plug-in end 3 on the surface of the sensor body 1. Then, embed the piston structure consisting of two second piston cylinders 16 and a second piston plate 18, and the piston structure consisting of the first piston cylinder 10 and the first piston plate 11, respectively, on one side of the plug-in end 3 and the top of the first connecting sleeve 4;

[0046] S2. Assemble the fixing frame 5 on the side of the first connecting sleeve 4, and embed the piston structure consisting of the piston cylinder 24 and the third piston plate 25 into the fixing frame 5, and bond the rubber sealing ring 28 to the push rod 26;

[0047] S3. Use the intermediate tube 15 and the air pipe to embed into the plug end 3 and the first connecting sleeve 4 to respectively realize the communication between the second piston cylinder 16 and the first piston cylinder 11 and the piston cylinder 24. Glue the second connecting sleeve 6 to the side of the fixed frame 5, and embed the control valve 29 into the plug end 3 and the upper side of the second piston cylinder 16 to complete the assembly.

[0048] The working principle of the present invention is as follows: when it is necessary to assemble the wire, directly match the wire end to the plug-in end 3 and insert it into the first connecting sleeve 4. At the same time, when the wire end is inserted into the first connecting sleeve 4, since the outer frame position of the data connector at the wire end is slightly larger, the wire end will squeeze the contact plate 20 to move backward. The contact plate 20 drives the second piston plate 18 to move backward while squeezing the internal gas of the second piston cylinder 16. The internal gas of the second piston cylinder 16 is transferred to the first piston cylinder 10, the piston cylinder 24 and the sealing airbag 7. The increased air pressure inside the first piston cylinder 10 controls the first piston plate 11 and the positioning rod 12 to move downward. When the positioning rod 12 is inserted into the hole set at the wire end, a simple positioning of the wire is completed. The internal air pressure of the piston cylinder 24 increases while controlling the movement of the third piston plate 25. At this time, the third piston plate 25 controls the pull plate 27 to move away through the push rod 26. As the fixed frame 5 moves and the pull plate 27 moves closer to the wire, the rubber sealing ring 28 shrinks and returns to its original shape and contacts the wire. At this time, the pull plate 27 supports the wire while the rubber sealing ring 28 seals the gap between the fixed frame 5 and the wire; the sealing airbag 7 expands as gas enters the inside, and when the sealing airbag 7 contacts the wire, the seal between the wire and the second connecting sleeve 6 is completed. When the wire needs to be removed, the control valve 29 is directly opened. At this time, the gas inside the second piston cylinder 16 flows out, and at the same time, the first elastic component 14 drives the first piston plate 11 and the positioning rod 12 to move upward, and the positioning rod 12 is separated from the end of the wire. At the same time, the gas inside the piston cylinder 24 is reduced. At this time, the gas pressure on the third piston plate 25 is reduced, the rubber sealing ring 28 is separated from the wire, and the sealing airbag 7 shrinks and separates from the wire. At this time, the wire can be directly removed.

[0049] The present invention provides a fixed frame 5, a piston cylinder 24, a second piston cylinder 16, a contact plate 20, a push rod 26, a pull plate 27, a rubber sealing ring 28 and a plug-in end 3, and directly inserts the wire end portion corresponding to the plug-in end 3 into the first connecting sleeve 4. The wire end portion squeezes the contact plate 20 to drive the second piston plate 18 to move. The second piston plate 18 squeezes and transfers the air inside the second piston cylinder 16 into the piston cylinder 24 through the trachea. The air inside the piston cylinder 24 increases and the air pressure continues to increase. The air pressure exerts pressure on the third piston plate 25, so that the third piston plate 25 drives the push rod 26 to move close to the wire. At the same time, the rubber sealing ring 28 stably contacts and seals the wire end portion, and the pull plate 27 supports the wire end portion. At the same time, the push rod 26 can shake inside the fixed frame 5, thereby achieving stable and tight clamping of the wire end portion and a small swing at the same time, ensuring stable contact with the plug-in end 3 while vibration occurs, and ensuring stable connection and use.

[0050] The present invention provides a positioning rod 12, a first piston cylinder 10, a second piston cylinder 16, a first piston plate 11, a control valve 29 and a fixed frame 5. When the end of the wire enters the first connecting sleeve 4, the second piston plate 18 squeezes the internal gas of the second piston cylinder 16 and transfers it to the first piston cylinder 10, thereby moving the first piston plate 11 and the positioning rod 12. The positioning rod 12 is inserted into the corresponding hole of the end of the wire to limit the position of the wire, avoid the wire from shaking back and forth at will, and ensure that the connection is more accurate and stable.

[0051] The present invention provides a sealing airbag 7, a supporting ball 8 and a second connecting sleeve 6. When the wire is plugged in, the contact plate 20 is squeezed and moved. At this time, the second piston plate 18 squeezes part of the gas transferred in the second piston cylinder 16 into the sealing airbag 7. At this time, the sealing airbag 7 expands, sealing the gap between the wire and the second connecting sleeve 6 while supporting the wire, avoiding obvious friction between the wire and the second connecting sleeve 6. When the wire shakes, the wire can be limited to avoid large shaking of the wire affecting the connection with the plug-in end 3, ensuring a stable and sealed connection of the wire while ensuring a safer connection.

[0052] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0053] Secondly: The drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures may refer to conventional designs. The same embodiment and different embodiments of the present invention may be combined with each other without conflict.

[0054] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A temperature and pressure sensor for an automobile air conditioner with high inductive sensitivity, comprising a sensor body (1), characterized in that: The front of the sensor body (1) is provided with a plug end (3), the end of the plug end (3) is provided with a first connecting sleeve (4), the front of the first connecting sleeve (4) is fixedly connected to the back of the fixing frame (5), and the front of the fixing frame (5) is fixedly connected to the back of the second connecting sleeve (6); Two first placement grooves (9) are provided on the top surface of the first connecting sleeve (4), a first piston cylinder (10) is provided on the inner wall of the first placement groove (9), and an air storage space on one side of the first piston cylinder (10) is connected to one end of the intermediate pipe (15); Two first guide sleeves (13) are provided through the bottom surface of the first piston cylinder (10), and a positioning rod (12) is passed through and slidably connected to the inner wall of the first guide sleeve (13), and the top end of the positioning rod (12) is fixedly connected to the first piston plate (11), and the first piston plate (11) is slidably connected to the inner wall of the first piston cylinder (10) to form a piston structure, and the inner wall of the top end of the first piston cylinder (10) is fixedly connected to the top ends of the two first elastic components (14), and the bottom end of the first elastic component (14) is fixedly connected to the first piston plate (11); The other end of the intermediate tube (15) is connected to the air storage space of the second piston cylinder (16), and the intermediate tube (15) is clamped on the inner wall of the first connecting sleeve (4) and the plug end (3). The second placement groove (17) is opened on the front of the plug end (3), and the second piston cylinder (16) is arranged on the inner wall of the second placement groove (17); the side wall of the front of the second piston cylinder (16) is penetrated by a second guide sleeve (21), and the inner wall of the second guide sleeve (21) is penetrated and slidably provided with a moving rod (19), one end of the moving rod (19) is fixedly connected to the back of the contact plate (20), and the other end of the moving rod (19) is fixedly connected to the front of the second piston plate (18); the second piston plate (18) is slidably connected to the inner wall of the second piston cylinder (16) to form a piston structure, the back of the second piston plate (18) is fixedly connected to one end of the front of the second elastic component (22), and one end of the back of the second elastic component (22) is fixedly connected to the back of the inner wall of the second piston cylinder (16).

2. The automobile air-conditioning temperature and pressure sensor with high inductive sensitivity according to claim 1, characterized in that: The left and right side surfaces of the sensor body (1) are respectively fixedly connected to the opposite surfaces of the two connecting plates (2).

3. The automobile air-conditioning temperature and pressure sensor with high inductive sensitivity according to claim 1, characterized in that: The inner wall of the second connecting sleeve (6) is provided with a sealing airbag (7), the sealing airbag (7) is connected to the second piston cylinder (16), and the inner wall of the second connecting sleeve (6) is provided with a plurality of supporting balls (8).

4. The automobile air-conditioning temperature and pressure sensor with high inductive sensitivity according to claim 1, characterized in that: The gas storage space of the second piston cylinder (16) is communicated with the piston barrel (24).

5. The automobile air-conditioning temperature and pressure sensor with high inductive sensitivity according to claim 4, characterized in that: The inner wall of the fixing frame (5) is provided with a connecting groove (23), and the inner wall of the connecting groove (23) is provided with a plurality of piston cylinders (24). A push rod (26) is provided in the piston cylinder (24), and a third piston plate (25) is provided at the other end of the push rod (26). The third piston plate (25) is slidably connected to the inner wall of the piston cylinder (24). A pull plate (27) is provided at one end of the push rod (26) away from the piston cylinder (24). The plurality of pull plates (27) are all provided on a rubber sealing ring (28), and the rubber sealing ring (28) is provided in the connecting groove (23).

6. The automobile air-conditioning temperature and pressure sensor with high inductive sensitivity according to claim 5, characterized in that: The inner wall of the first piston cylinder (10) is fixedly connected to the top ends of the two first elastic components (14), and the bottom ends of the first elastic components (14) are fixedly connected to the first piston plate (11).

7. The automobile air-conditioning temperature and pressure sensor with high inductive sensitivity according to claim 1, characterized in that: The first piston plate (11) is configured to be rectangular, and the second piston plate (18) is configured to be rectangular.

8. The automobile air-conditioning temperature and pressure sensor with high inductive sensitivity according to claim 1, characterized in that: The first connecting sleeve (4) is provided with a control valve (29), the control valve (29) is connected to two second piston cylinders (16), and the second piston cylinders (16) are connected to the piston barrel (24) through an air pipe.

9. The method for producing a temperature and pressure sensor for an automobile air conditioner with high sensitivity according to any one of claims 1 to 8, wherein: Including steps: S1. Assemble the first connecting sleeve (4) outside the plug-in end (3) on the surface of the sensor body (1), and then embed the piston structure consisting of two second piston cylinders (16) and a second piston plate (18) and the piston structure consisting of the first piston cylinder (10) and the first piston plate (11) on one side of the plug-in end (3) and the top of the first connecting sleeve (4); S2. Assemble a fixed frame (5) on the side of the first connecting sleeve (4), embed a piston structure consisting of a piston cylinder (24) and a third piston plate (25) in the fixed frame (5), and bond a rubber sealing ring (28) to the push rod (26); S3. The intermediate tube (15) and the air pipe are embedded in the plug end (3) and the first connecting sleeve (4) to respectively realize the communication between the second piston cylinder (16) and the first piston cylinder (11) and the piston cylinder (24). The second connecting sleeve (6) is bonded to the side of the fixed frame (5), and the control valve (29) is embedded in the plug end (3) and the upper side of the second piston cylinder (16) to complete the assembly.

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