A fast and accurate thermal conductivity automobile air conditioning pressure and temperature sensor

Abstract

The present invention discloses a fast and accurate heat-conducting automotive air-conditioning pressure and temperature sensor, specifically relating to the technical field of pressure and temperature sensors, including a pressure and temperature sensor, wherein a connection port is provided on the right side of the pressure and temperature sensor, and a dustproof structure is provided on the outer surface of the connection port. The present invention cooperates with a protective structure and a mounting structure, so that the protective structure can produce a reset movement through elasticity, thereby enabling the two protective covers to close and provide a sealed protection for the connection port, preventing the ingress of dust or impurities, and at the same time preventing damage to the connection port by external forces, which would render the pressure and temperature sensor inoperable. Moreover, during the opening process of the protective structure, the elastic structure can cooperate with the mounting structure to achieve installation and fixation of the pressure and temperature sensor, so that the device can achieve installation of the pressure and temperature sensor through direct plug-in operation, thereby making installation more convenient and quick.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure and temperature sensors, and more particularly to a pressure and temperature sensor for an automobile air conditioner with fast and accurate heat conduction. Background Art

[0002] The pressure and temperature sensor is an absolute pressure and temperature sensor based on the silicon piezoresistive effect and implemented using CMOS technology and MEMS hybrid technology. The pressure to be measured is loaded on the silicon diaphragm from the top of the chip. The pressure and temperature sensor outputs a voltage signal that is linearly proportional to the pressure and provides accurate and stable signal output and temperature compensation.

[0003] Since the pressure of automobile air conditioners is relatively high, generally reaching 500Psi, traditional air conditioner pressure and temperature sensors can only detect pressure, while the temperature is measured by a separate temperature and pressure sensor. As a result, automobile air conditioner pressure and temperature measurements require two pressure and temperature sensors. With the development of electronic technology, the air conditioner pressure and temperature sensors newly released on the market in recent years can detect automobile air conditioner pressure and temperature at the same time, but there are still some problems in actual use, as follows:

[0004] First of all, the pressure and temperature sensors in the prior art are generally fixed by two bolts, which is not only inconvenient to disassemble and maintain, but also when it needs to be carried, the detection end of the pressure and temperature sensor is easily damaged by external force, affecting the detection results. At the same time, since the wiring port is always exposed to the outside when not in use, it is easy for dust and other impurities to enter, making the terminals in the wiring port prone to poor contact, making it difficult to use the pressure and temperature sensor normally. Moreover, when connecting, the sealing of the port and the wiring part cannot be well guaranteed. Therefore, it is of great significance to study a new automotive air-conditioning pressure and temperature sensor with fast heat conduction and high accuracy to solve the above problems. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a fast and accurate automotive air-conditioning pressure and temperature sensor. The technical problem to be solved by the present invention is that the pressure and temperature sensors in the prior art are generally fixed by two bolts, which is not only inconvenient to disassemble and maintain, but also when it needs to be carried, the detection end of the pressure and temperature sensor is easily damaged by external forces, affecting the detection results. At the same time, since the wiring port is always exposed to the outside when not in use, it is easy for dust and other impurities to enter, making the terminals in the wiring port prone to poor contact, making it difficult to use the pressure and temperature sensor normally. Moreover, when connected, the sealing of the port and the wiring part cannot be well guaranteed.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a fast and accurate thermally conductive automobile air-conditioning pressure and temperature sensor, comprising a pressure and temperature sensor, a connection port being provided on the right side of the pressure and temperature sensor, a dust-proof structure being provided on the outer surface of the connection port, a detection end being provided on the upper surface of the pressure and temperature sensor, two protective structures being provided on the outer surface of the detection end, the two protective structures being located on the upper surface of the pressure and temperature sensor, the two sides of the outer surface of the pressure and temperature sensor being fixedly connected to the opposite surfaces of the two support seats, the two support seats being located on the lower sides of the two protective structures, the upper surfaces of the two support seats being provided with a first through hole, the lower surfaces of the two support seats being overlapped with the upper surfaces of the two mounting structures, respectively.

[0007] The protective structure includes an elastic structure, which is arranged on the upper surface of the support seat, and the lower surface of the elastic structure is fixedly connected to the top of the gear rod, the gear rod is engaged with the gear, and the inner surface of the gear is fixedly connected to one end of the outer surface of the screw, and the outer surface of the screw is threadedly connected to a threaded barrel, and the outer surface of the threaded barrel is fixedly connected to the inner wall of the protective cover, and the protective cover is located on the outer surface of the detection end.

[0008] The mounting structure includes an outer shell, the upper surface of the outer shell is overlapped with the lower surface of the support seat, an inner shell is provided inside the outer shell, the upper surface of the inner wall of the inner shell is fixedly connected to one end of the outer surfaces of two third springs, the other end of the outer surfaces of the two third springs is fixedly connected to the lower surface of the inner wall of the outer shell, a second through hole is opened on the outer surface of the inner shell, two limiting balls are provided in the second through hole, and the outer surfaces of the two limiting balls are slidably connected to the inner wall of the outer shell.

[0009] The detection port is provided with a sealed temperature detection cavity and an open pressure detection cavity, the pressure detection cavity is connected to the sensing surface of a pressure sensitive element, the temperature detection cavity is provided with a thermistor sensing head, and the temperature detection cavity is filled with a thermal conductive material, the thermal conductive material is thermal conductive silicone grease, and the thermal conductive silicone grease is doped with graphene powder.

[0010] As a further solution of the present invention: the screw is rotatably connected in the second bearing, the outer surface of the second bearing is fixedly connected to the inner part of the fixed block, and the lower surface of the fixed block is fixedly connected to the upper surface of the pressure and temperature sensor.

[0011] As a further solution of the present invention: the two sides of the outer surface of the protective cover are fixedly connected to the opposite surfaces of the two guide sleeves respectively, the two guide sleeves are slidably connected to the outer surface of the same support frame, and the lower surfaces of the two support frames are fixedly connected to the upper surface of the pressure and temperature sensor.

[0012] As a further solution of the present invention: the elastic structure includes an operating plate, the lower surface of the operating plate is fixedly connected to the top end of the gear rod, and the lower surface of the operating plate is fixedly connected to the top end of the positioning column.

[0013] As a further solution of the present invention: the bottom of the positioning column is located in the first through hole, the upper surface of the support seat is fixedly connected to one end of the second spring, the other end of the second spring is fixedly connected to the lower surface of the operating panel, and the second spring is sleeved on the outer surface of the positioning column.

[0014] As a further solution of the present invention: the lower surface of the pressure and temperature sensor is fixedly connected to the upper surface of the rubber plate, the rubber plate is arranged in the limit seat, and the two sides of the outer surface of the limit seat are respectively fixedly connected to the opposite surfaces of the two shells.

[0015] As a further solution of the present invention: the upper side of the inner wall of the outer shell is set as an inclined surface, and one side of the outer surface of the inner shell is fixedly connected to one end of the operating rod.

[0016] As a further solution of the present invention: the dust-proof structure includes two rotating structures, and the two rotating structures are respectively fixedly connected to one side of the outer surface of the two dust-proof plates, and the two rotating structures are respectively arranged on the upper and lower sides of the outer surface of the connecting port, and the inner surface of the connecting port is fixedly connected to the outer surface of the annular airbag, and the outer surface of the annular airbag is respectively connected to one end of the two connecting pipes, and the other ends of the two connecting pipes are respectively connected to one side of the outer surface of the two shells, and piston plates are respectively provided inside the two shells, and the opposite surfaces of the two piston plates are respectively fixedly connected to one end of the two first springs above and the two first springs below, and the other ends of the two first springs above and the two first springs below are respectively fixedly connected to one side of the inner wall of the two shells.

[0017] As a further solution of the present invention: an air port is provided on the outer surface of the shell, the piston plate is slidably connected to the inner wall of the sealing sleeve, the sealing sleeve is clamped in the interior of the shell, and the rotating structure includes a support block, the support block is fixedly connected to the outer surface of the connecting port, and first bearings are clamped on both sides of the outer surface of the support block, and a rotating shaft is sleeved in each of the two first bearings. The outer surfaces of the two rotating shafts are fixedly connected to the interior of the dustproof plate, and the outer surfaces of the two rotating shafts are sleeved with torsion springs, one end of the two torsion springs are respectively fixedly connected to the surfaces of the two first bearings, and the other ends of the two torsion springs are respectively fixedly connected to the two sides of the inner wall of the dustproof plate.

[0018] The beneficial effects of the present invention are:

[0019] 1. The present invention cooperates with the protective structure and the mounting structure to enable the protective structure to produce a reset movement through elasticity, thereby enabling the two protective covers to close and protect the connection port, preventing dust or impurities from entering. At the same time, it can prevent external forces from causing damage to the pressure and temperature sensor, which may cause it to be unable to function normally. In addition, during the opening process of the protective structure, the elastic structure can cooperate with the mounting structure to achieve the installation and fixation of the pressure and temperature sensor, so that the device can achieve the installation of the pressure and temperature sensor through direct plug-in operation, thereby making the installation more convenient and quick.

[0020] 2. The present invention provides a rotating structure and a dustproof plate, so that the rotating structure can release elastic torque to reset, thereby driving the dustproof plate to flip. When the two dustproof plates flip and close, they can seal the connection port, thereby playing a dustproof role and preventing poor contact of the terminal of the connection port from affecting the normal use of the pressure and temperature sensor.

[0021] 3. The present invention provides a dustproof plate, a first spring, a piston plate and an annular airbag. When the dustproof plate is flipped open, the dustproof plate can squeeze the piston plate to move, causing the first spring to deform and at the same time sucking in the gas inside the annular airbag, causing the annular airbag to be deflated, so that the connector can be smoothly inserted into the connecting port. When the dustproof plate is separated from the piston plate, the elastic force of the first spring can drive the piston plate to reset, and then the annular airbag can be inflated, so that the annular airbag expands and is in close contact with the connector, thereby ensuring the sealing between the connector and the connecting port and positioning the connector to prevent it from loosening.

[0022] 4. The present invention divides the pressure detection chamber and the temperature detection chamber into two independent cavities in the detection port, and fills the temperature detection chamber with thermal grease with high thermal conductivity, and mixes graphene powder inside it, so that the thermistor sensing head and the solder joint do not come into contact with the measured medium, avoiding the strong acid generated by the fluorine-containing substances in the medium to oxidize the solder joint. The lipophilicity of the graphene powder inside it can greatly improve the stability of the thermal grease, and the addition of graphene powder can also greatly improve the thermal conductivity of the thermal grease, so that the device has the characteristics of fast and accurate thermal conduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the pressure and temperature sensor of the present invention;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the protective structure of the present invention;

[0026] Figure 4Schematic diagram of the cross-sectional structure of the limit seat of the present invention when viewed from the left;

[0027] Figure 5 Schematic diagram of the cross-sectional structure of the housing of the present invention as viewed from the left;

[0028] Figure 6 This is a schematic diagram of the three-dimensional structure of the connection port of the present invention;

[0029] Figure 7 Schematic diagram of the three-dimensional cross-sectional structure of the connection port of the present invention from the left side;

[0030] Figure 8 This is a schematic cross-sectional structural diagram of the detection port of the present invention;

[0031] In the figure: 1 pressure and temperature sensor, 2 connection port, 3 detection end, 4 support seat, 5 first through hole, 6 dustproof structure, 61 rotation structure, 611 rotating shaft, 612 support block, 613 torsion spring, 614 first bearing, 62 dustproof plate, 63 connecting pipe, 64 shell, 65 air port, 66 sealing sleeve, 67 piston plate, 68 first spring, 69 annular airbag, 7 protection structure, 71 elastic structure, 711 operating panel, 712 second spring, 713 positioning column, 72 gear rod, 73 threaded barrel, 74 protective cover, 75 gear, 76 second bearing, 77 fixing block, 78 screw, 79 support frame, 710 guide sleeve, 8 mounting structure, 81 shell, 82 third spring, 83 inner shell, 84 limiting ball, 85 second through hole, 86 operating rod, 9 limiting seat, 10 rubber plate, 11 thermal conductive material, 12 thermistor sensing head, 13 pressure detection chamber, 14 temperature detection chamber. DETAILED DESCRIPTION

[0032] 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.

[0033] like Figure 1-8As shown, the present invention provides a fast and accurate heat-conducting automobile air-conditioning pressure and temperature sensor, including a pressure and temperature sensor 1. The present invention installs a thermistor sensing head in the pressure and temperature sensor 1. A connection port 2 is provided on the right side of the pressure and temperature sensor 1. A dustproof structure 6 is provided on the outer surface of the connection port 2. By providing the dustproof structure 6, the connection port 2 can be dustproofed and the connector inserted into the connection port 2 can be locked. A detection terminal 3 is provided on the upper surface of the pressure and temperature sensor 1. Two protective structures 7 are provided on the outer surface of the detection terminal 3. By setting up the protective structure 7, the protective structure 7 can play a role of closed protection for the detection end 3, thereby avoiding the problem of damage to it by external force. The two protective structures 7 are located on the upper surface of the pressure and temperature sensor 1, and the two sides of the outer surface of the pressure and temperature sensor 1 are fixedly connected to the opposite surfaces of the two support seats 4. The two support seats 4 are respectively located on the lower sides of the two protective structures 7. The upper surfaces of the two support seats 4 are each provided with a first through hole 5. By opening the first through hole 5, the positioning column 713 is facilitated to slide up and down, and the lower surfaces of the two support seats 4 are respectively overlapped with the upper surfaces of the two mounting structures 8.

[0034] The protective structure 7 includes an elastic structure 71, which is arranged on the upper surface of the support seat 4. The lower surface of the elastic structure 71 is fixedly connected to the top of the gear rod 72, and the gear rod 72 is meshed with the gear 75. By setting the gear rod 72, the movement of the gear rod 72 can control the rotation of the gear 75. The inner surface of the gear 75 is fixedly connected to one end of the outer surface of the screw 78. The outer surface of the screw 78 is threadedly connected with a threaded barrel 73. By setting the screw 78 and the threaded barrel 73, the rotation of the screw 78 can drive the threaded barrel 73 to move. The outer surface of the threaded barrel 73 is fixedly connected to the inner wall of the protective cover 74. By setting the protective cover 74, the protective cover 74 can protect the detection terminal 3. The protective cover 74 is located on the outer surface of the detection terminal 3.

[0035] The mounting structure 8 includes an outer shell 81, the upper surface of the outer shell 81 is overlapped with the lower surface of the support seat 4, and an inner shell 83 is provided inside the outer shell 81. The upper surface of the inner wall of the inner shell 83 is fixedly connected to one end of the outer surface of the two third springs 82. By providing the third spring 82, the third spring 82 can drive the inner shell 83 to reset upward, and then control the limit ball 84 to move upward to achieve close fit with the positioning column 713, so as to lock the positioning column 713 and prevent the positioning column 713 from falling out upward. The other end of the outer surface of the two third springs 82 is fixedly connected to the lower surface of the inner wall of the outer shell 81, and a second through hole 85 is provided on the outer surface of the inner shell 83. By providing the second through hole 85, it is convenient to place the limit ball 84. Two limit balls 84 are provided in the second through hole 85, and the outer surfaces of the two limit balls 84 are slidably connected to the inner wall of the outer shell 81.

[0036] like Figure 2 As shown, the detection end 3 is provided with a sealed temperature detection chamber 14 and an open pressure detection chamber 13, the pressure detection chamber 13 is connected to the sensing surface of a pressure sensitive element, the temperature detection chamber 14 is provided with a thermistor sensing head 12, the temperature detection chamber 14 is filled with a thermal conductive material 11, the thermal conductive material 11 is thermal conductive silicone grease, the thermal conductive silicone grease is doped with graphene powder, and the mixing ratio of thermal conductive silicone grease and graphene powder in the thermal conductive material 11 is 10:1. By dividing the pressure detection chamber and the temperature detection chamber into two independent cavities in the detection port, and filling the temperature detection chamber with high thermal conductivity thermal conductive silicone grease, and mixing graphene powder inside it, the thermistor sensing head and the solder joint are not in contact with the measured medium, avoiding the strong acid generated by the fluorine-containing substance in the medium to oxidize the solder joint, and utilizing the lipophilicity of the internal graphene powder, the stability of the thermal conductive silicone grease can be greatly improved, and the addition of graphene powder can also greatly improve the thermal conductivity of the thermal conductive silicone grease, so that the device has the characteristics of fast and accurate thermal conduction.

[0037] like Figure 3 As shown, the screw 78 is rotatably connected to the second bearing 76. By providing the second bearing 76, the screw 78 can rotate smoothly. The outer surface of the second bearing 76 is fixedly connected to the inner part of the fixed block 77. The lower surface of the fixed block 77 is fixedly connected to the upper surface of the pressure and temperature sensor 1. The two sides of the outer surface of the protective cover 74 are respectively fixedly connected to the opposite surfaces of the two guide sleeves 710. The two guide sleeves 710 are slidably connected to the outer surface of the same support frame 79. By providing the support frame 79, the support frame 79 can ensure the smooth sliding of the guide sleeve 710, so that the protective cover 74 can slide smoothly. The lower surfaces of the two support frames 79 are fixed to the upper surface of the pressure and temperature sensor 1 The surface is fixedly connected, and the elastic structure 71 includes an operating plate 711. By setting the operating plate 711, it is convenient to control the positioning column 713 and the gear rod 72. The lower surface of the operating plate 711 is fixedly connected to the top of the gear rod 72. The lower surface of the operating plate 711 is fixedly connected to the top of the positioning column 713. The bottom of the positioning column 713 is located in the first through hole 5. The upper surface of the support seat 4 is fixedly connected to one end of the second spring 712. By setting the second spring 712, the elastic force of the second spring 712 can drive the operating plate 711 to reset upward. The other end of the second spring 712 is fixedly connected to the lower surface of the operating plate 711, and the second spring 712 is sleeved on the outer surface of the positioning column 713.

[0038] like Figure 4 and Figure 5As shown, the lower surface of the pressure and temperature sensor 1 is fixedly connected to the upper surface of the rubber plate 10. By setting the rubber plate 10, the rubber plate 10 is snapped into the limit seat 9, thereby ensuring that the first through hole 5 corresponds to the position of the opening of the shell 81. At the same time, the rubber plate 10 can play a buffering and shock-absorbing role for the pressure and temperature sensor 1. The rubber plate 10 is set in the limit seat 9, and the two sides of the outer surface of the limit seat 9 are respectively fixedly connected to the opposite surfaces of the two shells 81. The upper side of the inner wall of the shell 81 is set as an inclined surface. By setting the shell 81 and the upper side of the inner wall of the shell 81 is set as an inclined surface, the space of the limit ball 84 is reduced, so that the positioning column 713 can smoothly squeeze the limit ball 84 to move downward. One side of the outer surface of the inner shell 83 is fixedly connected to one end of the operating rod 86. By setting the operating rod 86, it is convenient to control one end of the inner shell 83.

[0039] like Figure 6 and Figure 7As shown, the dustproof structure 6 includes two rotating structures 61. By setting the rotating structure 61, the rotating structure 61 can ensure that the dustproof plate 62 can be turned over smoothly. The two rotating structures 61 are fixedly connected to one side of the outer surface of the two dustproof plates 62 respectively. By setting the dustproof plates 62, the dustproof plates 62 can play a dustproof role for the connection port 2. The two rotating structures 61 are respectively arranged on the upper and lower sides of the outer surface of the connection port 2. The inner surface of the connection port 2 is fixedly connected to the outer surface of the annular airbag 69, and the outer surface of the annular airbag 69 is respectively connected to one end of the two connecting pipes 63 By setting a connecting pipe 63, the annular airbag 69 and the shell 64 can be connected. The other ends of the two connecting pipes 63 are respectively connected to one side of the outer surface of the two shells 64. The interior of the two shells 64 is provided with a piston plate 67. The opposite surfaces of the two piston plates 67 are respectively fixedly connected to the two first springs 68 above and one end of the two first springs 68 below. By setting the first spring 68, the elastic force of the first spring 68 can control the piston plate 67 to reset, and then the annular airbag 69 can be inflated, so that the annular airbag 69 can ensure the connection between the annular airbag 69 and the connector. Sealing, the other ends of the two first springs 68 above and the two first springs 68 below are fixedly connected to one side of the inner wall of the two shells 64 respectively, and the outer surface of the shell 64 is provided with an air port 65. The piston plate 67 is slidably connected to the inner wall of the sealing sleeve 66. By setting the sealing sleeve 66, the sealing with the piston plate 67 can be ensured. The sealing sleeve 66 is clamped in the interior of the shell 64. The rotating structure 61 includes a support block 612, which is fixedly connected to the outer surface of the connection port 2. Both sides of the outer surface of the support block 612 are clamped with a first bearing 614. By setting the first bearing 6 14, so that the rotating shaft 611 can rotate stably, the rotating shaft 611 is sleeved in the two first bearings 614, the outer surfaces of the two rotating shafts 611 are fixedly connected to the inside of the dustproof plate 62, and the outer surfaces of the two rotating shafts 611 are sleeved with torsion springs 613. By setting the torsion springs 613, the torsion force of the torsion springs 613 can drive the dustproof plate 62 to flip and reset, thereby achieving the dustproof effect of the connection port 2. One end of the two torsion springs 613 is respectively fixedly connected to the surface of the two first bearings 614, and the other end of the two torsion springs 613 is respectively fixedly connected to the two sides of the inner wall of the dustproof plate 62.

[0040] Working principle of the present invention:

[0041] S1. During installation, first fix the position of the limit seat 9, then place the rubber plate 10 into the interior of the limit seat 9 through the pressure and temperature sensor 1. At this time, the position of the first through hole 5 corresponds to the opening of the shell 81. Then press the operating plate 711 downward, so that the operating plate 711 moves the gear rod 72 downward, so that the gear rod 72 drives the gear 75 to rotate, so that the gear 75 drives the screw rod 78 to rotate, so that the screw rod 78 drives the threaded barrel 73 to move, so that the threaded barrel 73 drives the protective cover 74 to move, so that the two protective covers 74 can be separated. At this time, the leakage of the detection terminal 3 can be detected;

[0042] When the locking cam 713 is in the unlock state, the locking cam 713 is in the unlock state, and the locking cam 713 is in the unlock state, so that the locking cam 713 is locked and the locking cam 713 is locked.

[0043] S3. Then flip the dustproof plate 62, so that the dustproof plate 62 drives the rotating shaft 611 to rotate, so that the rotating shaft 611 drives the torsion spring 613 to generate the torsion spring 613, so that the dustproof plate 62 flips over to the other side to squeeze the piston plate 67 to move, so that the piston plate 67 compresses the first spring 68. At the same time, the movement of the piston plate 67 can absorb the gas inside the annular airbag 69 through the connecting pipe 63, so that the annular airbag 69 becomes deflated. At the same time, the connecting port 2 is opened. At this time, the connector can be inserted into the connecting port 2 for connection, and then the dustproof plate 62 is loosened. At this time, the torsion force of the torsion spring 613 drives the dustproof plate 62 to flip and separate from the piston plate 67, so that the first spring 68 controls the piston plate 67 to reset. At this time, the internal gas of the shell 64 enters the annular airbag 69 through the connecting pipe 63, so that the annular airbag 69 expands and is in close contact with the surface of the connecting head to achieve positioning and sealing.

[0044] 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.

[0045] 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.

[0046] 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 fast and accurate heat-conducting automobile air-conditioning pressure and temperature sensor, comprising a pressure and temperature sensor (1), characterized in that: The right side of the pressure and temperature sensor (1) is provided with a connection port (2), the outer surface of the connection port (2) is provided with a dustproof structure (6), the upper surface of the pressure and temperature sensor (1) is provided with a detection terminal (3), the outer surface of the detection terminal (3) is provided with two protective structures (7), the two protective structures (7) are located on the upper surface of the pressure and temperature sensor (1), the two sides of the outer surface of the pressure and temperature sensor (1) are fixedly connected to the opposite surfaces of the two support seats (4), the two support seats (4) are respectively located on the lower sides of the two protective structures (7), the upper surfaces of the two support seats (4) are both provided with a first through hole (5), and the lower surfaces of the two support seats (4) are respectively overlapped with the upper surfaces of the two mounting structures (8); The protective structure (7) includes an elastic structure (71), the elastic structure (71) is arranged on the upper surface of the support seat (4), the lower surface of the elastic structure (71) is fixedly connected to the top of the gear rod (72), the gear rod (72) is meshed with the gear (75), the inner surface of the gear (75) is fixedly connected to one end of the outer surface of the screw rod (78), the outer surface of the screw rod (78) is threadedly connected to a threaded barrel (73), the outer surface of the threaded barrel (73) is fixedly connected to the inner wall of the protective cover (74), and the protective cover (74) is located on the outer surface of the detection terminal (3); The mounting structure (8) includes an outer shell (81), the upper surface of the outer shell (81) is overlapped with the lower surface of the support seat (4), an inner shell (83) is provided inside the outer shell (81), the upper surface of the inner wall of the inner shell (83) is fixedly connected to one end of the outer surface of two third springs (82), the other end of the outer surface of the two third springs (82) is fixedly connected to the lower surface of the inner wall of the outer shell (81), a second through hole (85) is opened on the outer surface of the inner shell (83), two limiting balls (84) are provided in the second through hole (85), and the outer surfaces of the two limiting balls (84) are slidably connected to the inner wall of the outer shell (81); The detection end (3) is provided with a sealed temperature detection cavity (14) and an open pressure detection cavity (13); the pressure detection cavity (13) is connected to a sensing surface of a pressure sensitive element; a thermistor sensing head (12) is provided in the temperature detection cavity (14); the temperature detection cavity (14) is filled with a heat-conducting material (11); the heat-conducting material (11) is heat-conducting silicone grease, and the heat-conducting silicone grease is doped with graphene powder.

2. The automotive air-conditioning pressure and temperature sensor with fast thermal conductivity and high accuracy according to claim 1, characterized in that: The screw (78) is rotatably connected in the second bearing (76), the outer surface of the second bearing (76) is fixedly connected to the inside of the fixed block (77), and the lower surface of the fixed block (77) is fixedly connected to the upper surface of the pressure and temperature sensor (1).

3. The automotive air-conditioning pressure and temperature sensor with fast thermal conductivity and high accuracy according to claim 1, characterized in that: Both sides of the outer surface of the protective cover (74) are fixedly connected to the opposite surfaces of the two guide sleeves (710), the two guide sleeves (710) are slidably connected to the outer surface of the same support frame (79), and the lower surfaces of the two support frames (79) are fixedly connected to the upper surface of the pressure and temperature sensor (1).

4. The automotive air-conditioning pressure and temperature sensor with fast heat conduction and high accuracy according to claim 1, characterized in that: The elastic structure (71) includes an operating plate (711), the lower surface of the operating plate (711) is fixedly connected to the top of the gear rod (72), and the lower surface of the operating plate (711) is fixedly connected to the top of the positioning column (713).

5. The automotive air-conditioning pressure and temperature sensor with fast heat conduction and high accuracy according to claim 4, characterized in that: The bottom of the positioning column (713) is located in the first through hole (5), the upper surface of the support seat (4) is fixedly connected to one end of the second spring (712), the other end of the second spring (712) is fixedly connected to the lower surface of the operating plate (711), and the second spring (712) is sleeved on the outer surface of the positioning column (713).

6. The automotive air-conditioning pressure and temperature sensor with fast heat conduction and high accuracy according to claim 1, characterized in that: The lower surface of the pressure and temperature sensor (1) is fixedly connected to the upper surface of the rubber plate (10), the rubber plate (10) is arranged in the limit seat (9), and the two sides of the outer surface of the limit seat (9) are respectively fixedly connected to the opposite surfaces of the two shells (81).

7. The automotive air-conditioning pressure and temperature sensor with fast thermal conductivity and high accuracy according to claim 1, characterized in that: The upper side of the inner wall of the outer shell (81) is configured as an inclined surface, and one side of the outer surface of the inner shell (83) is fixedly connected to one end of the operating rod (86).

8. The automotive air-conditioning pressure and temperature sensor with fast heat conduction and high accuracy according to claim 1, characterized in that: The dustproof structure (6) includes two rotating structures (61), and the two rotating structures (61) are respectively fixedly connected to one side of the outer surface of the two dustproof plates (62). The two rotating structures (61) are respectively arranged on the upper and lower sides of the outer surface of the connecting port (2). The inner surface of the connecting port (2) is fixedly connected to the outer surface of the annular airbag (69). The outer surface of the annular airbag (69) is respectively connected to one end of the two connecting pipes (63). The other ends of the two connecting pipes (63) are respectively connected to one side of the outer surface of the two shells (64). The interiors of the two shells (64) are both provided with piston plates (67). The opposite surfaces of the two piston plates (67) are respectively fixedly connected to one end of the two first springs (68) above and the two first springs (68) below. The other ends of the two first springs (68) above and the two first springs (68) below are respectively fixedly connected to one side of the inner wall of the two shells (64).

9. The automotive air-conditioning pressure and temperature sensor with rapid thermal conductivity and high accuracy according to claim 8, characterized in that: An air port (65) is provided on the outer surface of the shell (64), the piston plate (67) is slidably connected to the inner wall of the sealing sleeve (66), and the sealing sleeve (66) is clamped inside the shell (64). The rotating structure (61) includes a support block (612), the support block (612) is fixedly connected to the outer surface of the connection port (2), both sides of the outer surface of the support block (612) are clamped with first bearings (614), and the two first bearings (614) are sleeved with rotating shafts (611), the outer surfaces of the two rotating shafts (611) are fixedly connected to the inside of the dustproof plate (62), and the outer surfaces of the two rotating shafts (611) are sleeved with torsion springs (613), one end of the two torsion springs (613) are respectively fixedly connected to the surfaces of the two first bearings (614), and the other ends of the two torsion springs (613) are respectively fixedly connected to the two sides of the inner wall of the dustproof plate (62).

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