Temperature and pressure sensor

Abstract

The present invention relates to the field of sensor technology, specifically a temperature and pressure sensor, including a shell, one side of the shell is provided with an electronic component installation groove, the bottom wall of the electronic component installation groove is provided with a boss, a bracket is provided above the boss, the boss is provided with a pressure sensing component embedding groove for installing a pressure sensing component, and a temperature sensing component through hole for a temperature sensing component to pass through; the bracket is provided with a terminal through hole and a pressure port seat through hole, a printed circuit board is provided above the bracket, the pressure sensing component and the temperature sensing component are electrically connected to the printed circuit board respectively, and the printed circuit board is electrically connected to an electrical connection plug provided on its outside; a connector is provided on the other side of the shell. The temperature and pressure sensing mechanism provided by this scheme is not only simple in structure and easy to process and assemble, but also low in cost. While greatly improving production efficiency, it can also ensure the detection accuracy of the sensor.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure sensor testing, and in particular to a temperature and pressure sensor. Background Art

[0002] A sensor is a detection device that can sense the information being measured and can 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. Its types include pressure sensors, temperature sensors, etc. Among them, a pressure sensor is a device or device that can sense pressure signals and convert pressure signals into usable output electrical signals according to certain rules. It is usually composed of a pressure sensitive element and a signal processing unit, and is widely used in various industrial automatic control environments, involving many industries such as water conservancy and hydropower, railway transportation, intelligent buildings, production automatic control, aerospace, military industry, petrochemicals, oil wells, electricity, ships, machine tools, pipelines, etc. Its working principle can be roughly divided into three steps: sensing pressure, converting signals, and outputting signals. Specifically, when pressure acts on a sensitive element, the sensitive element will deform, and the degree of deformation is proportional to the magnitude of the pressure. After sensing the change in pressure, the pressure sensor will convert this change into an electrical signal. The conversion method may include measuring changes in resistance, capacitance or inductance. Finally, the pressure sensor outputs the converted electrical signals to external devices for processing. These signals can be analog signals or digital signals. The temperature sensor is a sensor that can sense temperature and convert it into a usable output signal. It is the core part of the temperature measuring instrument. Its working principle is mainly based on the thermoelectric effect, resistance effect, thermistor effect, thermal resistor effect, thermocouple effect, infrared absorption effect, etc. of the material to convert the temperature signal into an electrical signal.

[0003] However, in some special cases, it is necessary to measure the temperature and pressure of the liquid or gas in the test environment at the same time. If the temperature sensor and pressure sensor are installed at the same time, the interface of the device to be tested or the space will affect the sensing. In view of this, the integrated temperature and pressure sensor with both temperature sensing and pressure sensing came into being.

[0004] The existing integrated temperature and pressure sensors with both temperature sensing and pressure sensing have a complex structure, which affects the processing efficiency, because they need to collect two signals, namely pressure signals and temperature signals. In addition, the temperature sensing components and pressure sensing components cannot be modularly arranged, which leads to mutual interference in actual use. The main reason is that the receiving structure design of the medium to be measured is unreasonable and the circuit connection is relatively chaotic.

[0005] Therefore, a new technical solution is urgently needed to solve the above-mentioned technical problems. Summary of the invention

[0006] The purpose of the present invention is to overcome the above-mentioned problems of the prior art and provide a temperature and pressure sensor to solve the technical problems that the complex structure of the traditional temperature and pressure sensor affects the assembly efficiency, and the temperature sensing component and the pressure sensing component cannot be modularly designed, which causes mutual influence during operation and thus affects the detection accuracy.

[0007] The above objectives are achieved through the following technical solutions:

[0008] A temperature and pressure sensor comprises a shell, one side of which is provided with an electronic component mounting groove, a boss is provided on the bottom wall of the electronic component mounting groove, a snap ring groove is formed between the outer side edge of the boss and the inner wall of the electronic component mounting groove, a bracket is provided above the boss, and a snap that can be snapped with the snap ring groove is provided on the bracket; a pressure sensing component embedding groove for installing a pressure sensing component and a temperature sensing component through hole for passing a temperature sensing component are provided on the boss; a terminal through hole and a pressure port seat through hole are provided on the bracket; the pressure port seat through hole is used for the top of the pressure sensing component to pass through, and can The pressure sensing component is longitudinally limited; a printed circuit board is arranged above the bracket, the pressure sensing component and the temperature sensing component are electrically connected to the printed circuit board respectively, and the printed circuit board is electrically connected to an electrical connection plug arranged on the outside thereof; a joint is arranged on the other side of the shell, and a port ring groove that can extend to the end is opened on the joint, and a pressure channel and a temperature sensing component mounting ring groove are opened along the bottom wall of the port ring groove; the pressure sensing component embedding groove, the pressure channel and the port ring groove are connected to each other; the temperature sensing component through hole, the temperature sensing component mounting ring groove and the port ring groove are connected to each other.

[0009] Furthermore, a grounding spring groove is provided on the boss, and a grounding spring through hole for the grounding spring to pass through is provided on the bracket, the bottom end of the grounding spring contacts the bottom wall of the grounding spring groove, and the top end of the grounding spring is electrically connected to the grounding pad on the lower surface of the printed circuit board.

[0010] Furthermore, the upper surface of the printed circuit board is provided with a terminal electrical connection hole and a pressure sensing element wiring through hole, the terminal electrical connection hole is used to electrically connect with the temperature sensing component, and the pressure sensing element wiring through hole is used for the wiring between the pressure sensing component and the surface of the printed circuit board to pass through.

[0011] Further, the electrical connection plug includes a plug housing seat with a plugging cavity groove, an electrical connection spring piece is arranged on the bottom wall of the plug housing seat, and the electrical connection spring piece can be electrically connected to an electrical connection pad arranged on the surface of the printed circuit board; an electrical connection pin is embedded in the plug housing seat, and the electrical connection pin includes a first pin portion connected to the electrical connection spring piece and a second pin portion placed in the plugging cavity groove.

[0012] Further, the pressure sensing assembly includes a pressure port seat with a pressure port, and a pressure sensing element arranged on the top of the pressure port seat.

[0013] Further, the pressure port seat includes an annular retaining arm arranged on the outer wall, and the lower surface of the annular retaining arm can longitudinally limit an O-ring sleeved on the pressure port seat.

[0014] Further, the pressure sensing assembly groove includes a pressure port seat ring groove and a retaining arm ring groove connected to each other, and the pressure port seat ring groove communicates with the pressure channel; the bottom side of the pressure port seat is inserted into the pressure port seat ring groove, the annular retaining arm is placed in the retaining arm ring groove, and the O-ring is located between the bottom wall of the retaining arm ring groove and the annular retaining arm.

[0015] Further, the temperature sensing assembly includes a temperature sensing element protection tube capable of accommodating a temperature sensing element, and an annular seat sleeve sleeved on the outer wall of the temperature sensing element protection tube and capable of forming a press connection with the side wall of the temperature sensing assembly installation ring groove; the temperature sensing element enters the temperature sensing element protection tube from the electronic component installation groove through the temperature sensing assembly through hole, and the temperature sensing element is connected through a temperature sensing element terminal.

[0016] Further, the temperature sensing assembly installation ring groove includes a first installation ring groove and a second installation ring groove connected to each other, the annular seat sleeve is in a T shape, including an annular sleeve, and a first annular flange and a second annular flange arranged on the outer wall of the annular sleeve, and an annular extrusion groove is formed between the first annular flange and the second annular flange.

[0017] Further, an annular inclined edge is arranged on the bottom side of the first annular flange, and the inclination angle of the annular inclined edge is 30° to 70°.

[0018] The temperature and pressure sensor provided by the present invention adopts a modular assembly method to realize the assembly of the pressure sensing component and the temperature sensing component with the housing, which can not only reduce the process difficulty and production cost, but also realize the stable connection of the pressure sensing components and the temperature sensing components of different specifications with the housing. The temperature and pressure sensing mechanism provided by this scheme is not only simple in structure, easy to process and assemble, but also low in cost. While greatly improving production efficiency, it can also ensure the detection accuracy of the sensor and be less affected by external interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the temperature and pressure sensor of the present invention from a first viewing angle;

[0020] Figure 2 This is a schematic diagram of the structure of the temperature and pressure sensor of the present invention from a second viewing angle;

[0021] Figure 3 This is a schematic diagram of the structure of the temperature and pressure sensor of the present invention from a third viewing angle;

[0022] Figure 4 An exploded diagram of the temperature and pressure sensor of the present invention;

[0023] Figure 5 This is a cross-sectional view of the temperature and pressure sensor of the present invention before assembly;

[0024] Figure 6 It is a cross-sectional view of the temperature and pressure sensor of the present invention after assembly;

[0025] Figure 7 This is a schematic diagram of the annular seat sleeve and the temperature sensing component in the temperature and pressure sensor of the present invention after being installed in the annular groove and crimped;

[0026] Figure 8 It is a schematic diagram of the structure of the electrical connection plug in the temperature and pressure sensor of the present invention;

[0027] Fig. 9 The exploded view of the electrical connection plug in the temperature and pressure sensor of the present invention.

[0028] Graphic marking:

[0029] 1- housing;

[0030] 2-electronic component mounting groove, 201-boss, 202-snapping ring groove, 203-pressure sensing component embedding groove, 204-temperature sensing component through hole, 205-grounding spring embedding groove, 206-pressure port seat ring groove, 207-blocking arm ring groove;

[0031] 3- bracket, 301- buckle, 302- terminal through hole, 303- pressure port seat through hole, 304- grounding spring through hole;

[0032] 4-connector, 401-first mounting ring groove, 402-second mounting ring groove, 403-port ring groove, 404-pressure channel, 405-temperature sensing component mounting ring groove;

[0033] 5-pressure sensing assembly, 501-pressure port, 502-pressure port seat, 503-pressure sensing element, 504-annular baffle arm, 505-O-ring;

[0034] 6-temperature sensing assembly, 601-temperature sensing element, 602-temperature sensing element protective tube, 603-annular seat sleeve, 604-temperature sensing element terminal, 605-accommodating cavity, 606-annular sleeve, 607-first annular flange, 608-second annular flange, 609-annular extrusion groove, 610-annular support flange, 611-annular inclined edge;

[0035] 7-printed circuit board, 701-terminal electrical connection hole, 702-pressure sensing element wiring through hole;

[0036] 8-electrical connection plug, 801-plug cavity, 802-plug shell seat, 803-electrical connection spring, 804-electrical connection pad, 805-electrical connection pin, 806-first pin part, 807-second pin part;

[0037] 9-Ground spring. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below based on the accompanying drawings and embodiments. The described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] like Figure 1 to Figure 5 As shown, a temperature and pressure sensor comprises a housing 1, an electronic component installation groove 2 is provided on one side of the housing 1, a boss 201 is provided on the bottom wall of the electronic component installation groove 2, a buckle ring groove 202 is formed between the outer side of the boss 201 and the inner wall of the electronic component installation groove 2, a bracket 3 is provided above the boss 201, and a buckle 301 capable of being buckled with the buckle ring groove 202 is provided on the bracket 3;

[0040] The boss 201 is provided with a pressure sensing component embedding groove 203 for installing the pressure sensing component 5, and a temperature sensing component through hole 204 for the temperature sensing component 6 to pass through; the bracket 3 is provided with a terminal through hole 302 corresponding to the temperature sensing component through hole 204, and a pressure port seat through hole 303 corresponding to the pressure sensing component embedding groove 203; the pressure port seat through hole 303 is used for the top of the pressure sensing component 5 to pass through, and can limit the pressure sensing component 5 in the longitudinal direction; a printed circuit board 7 is arranged above the bracket 3, the pressure sensing component 5 and the temperature sensing component 6 are electrically connected to the printed circuit board 7 respectively, and the printed circuit board 7 is electrically connected to an electrical connection plug 8 arranged on the outside thereof;

[0041] A connector 4 is provided on the other side of the housing 1. In this embodiment, the connector 4 protrudes outward, and a port ring groove 403 extending to the end is provided on the connector 4. A pressure channel 404 and a temperature sensing component mounting ring groove 405 are provided along the bottom wall of the port ring groove 403. In this embodiment, the temperature sensing component mounting ring groove 405 is in an inverted T shape; the pressure sensing component embedding groove 203, the pressure channel 404 and the port ring groove 403 are interconnected; the temperature sensing component through hole 204, the temperature sensing component mounting ring groove 405 and the port ring groove 403 are interconnected;

[0042] In this embodiment, the housing 1 and the connector 4 are made of aluminum alloy, such as 6061-T6 aluminum alloy.

[0043] In addition, the housing 1 and the connector 4 are integrally formed, wherein the connector 4 is used to connect with a device containing the medium to be measured, and a thread may be provided on the outer wall or the inner wall of the port ring groove 403 for screw connection.

[0044] like Figure 5 As shown, in this embodiment, a grounding spring groove 205 is further provided on the boss 201, and a grounding spring through hole 304 for the grounding spring 9 to pass through is provided on the bracket 3, the bottom end of the grounding spring 9 contacts the bottom wall of the grounding spring groove 205, and the top end of the grounding spring 9 is electrically connected to the grounding pad on the lower surface of the printed circuit board 7, thereby realizing the grounding electrical connection of the temperature and pressure sensor.

[0045] like Figure 4As shown, a terminal electrical connection hole 701 and a pressure sensing element wiring through hole 702 are also provided on the upper surface of the printed circuit board 7. The terminal electrical connection hole 701 is used to electrically connect with the temperature sensing component 6, and the pressure sensing element wiring through hole 702 is used for the wiring of the pressure sensing component 5 and the surface of the printed circuit board 7 to pass through. In this embodiment, the terminal electrical connection hole 701 corresponds to the terminal through hole 302, and the pressure sensing element wiring through hole 702 corresponds to the pressure port seat through hole 303.

[0046] like Figure 8 and Fig. 9 As shown, the electrical connection plug 8 in this embodiment includes a plug shell 802 with a plug-in cavity 801, and an electrical connection spring 803 is arranged on the bottom wall of the plug shell 802, and the electrical connection spring 803 can be electrically connected to the electrical connection pad 804 arranged on the surface of the printed circuit board 7; an electrical connection pin 805 is embedded in the plug shell 802, and the electrical connection pin 805 includes a first pin portion 806 connected to the electrical connection spring 803, and a second pin portion 807 arranged in the plug-in cavity 801, and the second pin portion 807 is used to electrically connect to an external pin jack to realize the uploading of sensor signals.

[0047] As an optimization of this solution, the plug housing 802 and the electronic component mounting slot 2 are connected and fixed by crimping.

[0048] like Figures 4 to 6 As shown, the pressure sensing component 5 in this embodiment includes a pressure port seat 502 with a pressure port 501, and a pressure sensing element 503 arranged on the top of the pressure port seat 502; the pressure of the medium to be measured enters the pressure port 501 from the port ring groove 403 through the pressure channel 404, and the pressure sensing element 503 collects pressure data by sensing the deformation of the top of the pressure port seat 502 and transmits it to the printed circuit board 7 located in the electronic component mounting groove 2 for data processing.

[0049] In addition, it should be noted that the pressure port seat 502 in this embodiment is made of stainless steel, preferably 17-4PH stainless steel.

[0050] The top of the pressure port seat 502 is made of an ultra-thin film, which can sense pressure and produce deformation, and the pressure sensing element 503 is arranged on the surface of the ultra-thin film. In this embodiment, a strain gauge can be used to sense the resistance change caused by the deformation of the diaphragm to realize signal collection. Since the method and processing method of collecting signals are common knowledge in the field, the principle will not be elaborated on in detail.

[0051] Among them, the pressure port seat 502 is in a cross shape, including an annular barrier arm 504 arranged on the outer wall, and the lower surface of the annular barrier arm 504 can longitudinally limit the O-ring 505 sleeved on the pressure port seat 502; the O-ring 505 can seal the gap between the inner wall of the pressure sensing component groove 203 and the outer wall of the pressure port seat 502, ensuring that the medium pressure entering from the pressure channel 404 will not leak along the gap to the side of the electronic component mounting groove 2, so that it can only enter the pressure port 501, thereby ensuring the accuracy of medium pressure collection.

[0052] In this embodiment, the pressure sensing component embedding groove 203 includes a pressure port seat ring groove 206 and a barrier arm ring groove 207 which are interconnected, and the pressure port seat ring groove 206 is connected to the pressure channel 404; the bottom side of the pressure port seat 502 is inserted into the pressure port seat ring groove 206, the annular barrier arm 504 is placed in the barrier arm ring groove 207, and the O-ring 505 is located between the bottom wall of the barrier arm ring groove 207 and the annular barrier arm 504.

[0053] like Figure 4 to Figure 7 As shown, the temperature sensing component 6 in this example includes a temperature sensing element protective tube 602 capable of accommodating a temperature sensing element 601, and an annular seat sleeve 603 that can be sleeved on the outer wall of the temperature sensing element protective tube 602 and can form a crimping connection with the side wall of the temperature sensing component mounting ring groove 405; the temperature sensing element 601 enters the temperature sensing element protective tube 602 from the electronic component mounting groove 2 through the temperature sensing component through hole 204, and the temperature sensing element 601 is connected through the temperature sensing element terminal 604, and the electrical connection end of the temperature sensing element terminal 604 is electrically connected to the terminal electrical connection hole 701; the temperature sensing element 601 in this embodiment is preferably an NTC thermistor, which is a type of sensor resistor whose resistance value decreases as the temperature increases.

[0054] In this embodiment, the temperature sensing element protective tube 602 is made of stainless steel, such as 304, 316, 316L stainless steel; one end of the temperature sensing element protective tube 602 serves as an entry port, and the other end serves as a closed end, forming a semi-enclosed accommodating cavity 605 for accommodating the temperature sensing element 601.

[0055] The annular seat sleeve 603 is made of stainless steel, preferably 304 stainless steel;

[0056] The connection method is as follows: The stainless-steel annular seat sleeve 603 and the stainless-steel temperature-sensing element protection tube 602 are sleeved with each other and then connected by welding. After welding is completed, the annular seat sleeve 603 is pushed into the temperature-sensing component installation ring groove 405 by pressure. Since the annular seat sleeve 603 is made of stainless steel and its outer diameter is larger than that of the temperature-sensing component installation ring groove 405 made of aluminum alloy, it will squeeze the side wall of the temperature-sensing component installation ring groove 405, thereby causing the side wall of the temperature-sensing component installation ring groove 405 to deform, and thus achieving the purpose of squeezing and connecting the temperature-sensing component 6 with the temperature-sensing component installation ring groove 405.

[0057] Specifically, as Figure 5 and Figure 7 shown, the temperature-sensing component installation ring groove 405 includes a first installation ring groove 401 and a second installation ring groove 402 that are connected to each other. The first installation ring groove 401 is adjacent to the temperature-sensing component through hole 204, and the second installation ring groove 402 is adjacent to the port ring groove 403. The annular seat sleeve 603 is in a "soil" shape, including an annular sleeve 606, and a first annular flange 607 and a second annular flange 608 provided on the outer wall of the annular sleeve 606. An annular extrusion groove 609 is formed between the first annular flange 607 and the second annular flange 608, which is used for the material of the deformed first installation ring groove 401 squeezed by the upper surface of the second annular flange 608 to enter when the annular seat sleeve 603 is crimped with the temperature-sensing component installation ring groove 405, thereby forming an annular support flange 610 that matches the annular extrusion groove 609. Through the mutual clamping of the annular support flange 610 and the annular extrusion groove 609, the temperature-sensing component 6 can be more stably fixed. When the annular sleeve 606 is crimped with the temperature-sensing component installation ring groove 405, the bottom edge of the second annular flange 608 is flush with the bottom edge of the second installation ring groove 402.

[0058] In this embodiment, the height of the annular sleeve 606 is less than the depth of the first installation ring groove 401, and this structure can facilitate the longitudinal crimping of the second annular flange 608 and the first installation ring groove 401.

[0059] It should be noted that in this embodiment, an annular inclined edge 611 is also provided on the bottom side of the first annular flange 607, and the inclination angle of the annular inclined edge 611 is 30° - 70°. Under the action of this annular inclined edge 611, it can prompt the deformed material to be completely filled in the annular extrusion groove 609, and further promote the minimization of the gap between the annular support flange 610 and the annular extrusion groove 609.

[0060] The above description is only for illustrating the implementation mode of the present invention and is not intended to limit the present invention. For those skilled in the art, any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A temperature and pressure sensor, characterized in that: It includes a housing (1). On one side of the housing (1), there is an electronic component mounting groove (2). On the bottom wall of the electronic component mounting groove (2), there is a boss (201). Between the outer side of the boss (201) and the inner wall of the electronic component mounting groove (2), a snap ring groove (202) is formed. Above the boss (201), there is a bracket (3). On the bracket (3), there is a snap (301) that can be snap-fitted with the snap ring groove (202). On the boss (201), there is a pressure sensing component embedding groove (203) for installing a pressure sensing component (5) and a temperature sensing component through hole (204) for the temperature sensing component (6) to pass through. On the bracket (3), there are a terminal through hole (302) and a pressure port seat through hole (303). The pressure port seat through hole (303) is used for the top of the pressure sensing component (5) to pass through and can longitudinally limit the pressure sensing component (5). Above the bracket (3), there is a printed circuit board (7). The pressure sensing component (5) and the temperature sensing component (6) are respectively electrically connected to the printed circuit board (7). The printed circuit board (7) is electrically connected to an electrical connection plug (8) arranged outside it. On the other side of the housing (1), there is a connector (4). On the connector (4), there is a port ring groove (403) that can extend to the end. Along the bottom wall of the port ring groove (403), there are a pressure channel (404) and a temperature sensing component mounting ring groove (405). The pressure sensing component embedding groove (203), the pressure channel (404) and the port ring groove (403) are interconnected. The temperature sensing component through hole (204), the temperature sensing component mounting ring groove (405) and the port ring groove (403) are interconnected. The temperature sensing component (6) includes a temperature sensing element protection tube (602) that can accommodate a temperature sensing element (601), and an annular seat sleeve (603) that can be sleeved on the outer wall of the temperature sensing element protection tube (602) and can form a press fit with the side wall of the temperature sensing component mounting ring groove (405). The temperature sensing element (601) enters the temperature sensing element protection tube (602) from the electronic component mounting groove (2) through the temperature sensing component through hole (204). The temperature sensing element (601) is connected through a temperature sensing element terminal (604). The temperature sensing component mounting ring groove (405) includes a first mounting ring groove (401) and a second mounting ring groove (402) that are connected to each other. The annular seat sleeve (603) is in a T shape and includes an annular sleeve (606), and a first annular flange (607) and a second annular flange (608) arranged on the outer wall of the annular sleeve (606). Between the first annular flange (607) and the second annular flange (608), an annular extrusion groove (609) is formed. On the bottom side of the first annular flange (607), there is an annular inclined edge (611). The inclination angle of the annular inclined edge (611) is 30° - 70°.

2. The temperature and pressure sensor according to claim 1, characterized in that: The boss (201) is also provided with a grounding spring embedding groove (205), and the bracket (3) is provided with a grounding spring through hole (304) capable of allowing the grounding spring (9) to pass through, the bottom end of the grounding spring (9) contacts the bottom wall of the grounding spring embedding groove (205), and the top end of the grounding spring (9) is electrically connected to the grounding pad on the lower surface of the printed circuit board (7).

3. The temperature and pressure sensor according to claim 1 or 2, characterized in that: The upper surface of the printed circuit board (7) is provided with a terminal electrical connection hole (701) and a pressure sensing element wiring through hole (702); the terminal electrical connection hole (701) is used for electrically connecting to the temperature sensing component (6); and the pressure sensing element wiring through hole (702) is used for allowing the pressure sensing component (5) to pass through the wiring with the surface of the printed circuit board (7).

4. The temperature and pressure sensor according to claim 1, characterized in that: The electrical connection plug (8) comprises a plug shell (802) with a plug cavity (801), an electrical connection spring (803) being arranged on the bottom wall of the plug shell (802), the electrical connection spring (803) being capable of being electrically connected to an electrical connection pad (804) arranged on the surface of the printed circuit board (7); an electrical connection pin (805) is embedded in the plug shell (802), the electrical connection pin (805) comprising a first pin portion (806) connected to the electrical connection spring (803), and a second pin portion (807) arranged in the plug cavity (801).

5. The temperature and pressure sensor according to claim 1, characterized in that: The pressure sensing component (5) comprises a pressure port seat (502) having a pressure port (501), and a pressure sensing element (503) arranged on the top of the pressure port seat (502).

6. The temperature and pressure sensor according to claim 5, characterized in that: The pressure port seat (502) comprises an annular retaining arm (504) arranged on the outer wall, and the lower surface of the annular retaining arm (504) can longitudinally limit the O-ring (505) sleeved on the pressure port seat (502).

7. The temperature and pressure sensor according to claim 6, characterized in that: The pressure sensing component embedding groove (203) includes a pressure port seat ring groove (206) and a baffle arm ring groove (207) which are connected to each other, and the pressure port seat ring groove (206) is connected to the pressure channel (404); the bottom side of the pressure port seat (502) is inserted into the pressure port seat ring groove (206), the annular baffle arm (504) is placed in the baffle arm ring groove (207), and the O-ring (505) is located between the bottom wall of the baffle arm ring groove (207) and the annular baffle arm (504).

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