Sensor, thermal management system and vehicle

Abstract

The utility model discloses a sensor, a thermal management system and a vehicle. The sensor comprises a housing; the base is arranged in the shell, the base is provided with a limiting structure, and the limiting structure is supported between the base and the shell, so that a medium channel can be formed between the base and the shell. Therefore, the limiting structure in the sensor forms a medium flowing channel between the base and the shell, so that the medium can quickly flow in conveniently for pressure feeding, and meanwhile, the limiting structure also can prevent relative rotation between the base and the shell, so that the accuracy of the measurement performance of the sensor can be ensured; and the stability of electrical performance connection of the base can also be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and particularly relates to a sensor, a thermal management system and a vehicle. Background Art

[0002] In a pressure sensor, a medium needs to flow into the pressure sensor and contact with a pressure measuring element to measure the pressure of the medium. In the related art, a separate pressure inlet needs to be provided for pressure inlet. Moreover, during installation, since the base and the housing are prone to dislocation, the sensor has a problem of inaccurate measurement. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, an object of the utility model is to provide a sensor. In this sensor, a limiting structure forms a channel for the medium to flow between the base and the housing, so as to facilitate the rapid inflow of the medium for pressure inlet. At the same time, the limiting structure can also prevent relative movement between the base and the housing, so as to ensure the accuracy of the measurement performance of the sensor and the stability of the electrical connection of the base.

[0004] The utility model further provides a thermal management system.

[0005] The utility model further provides a vehicle.

[0006] The sensor according to the first aspect embodiment of the utility model is used to measure the pressure of a medium, and includes: a housing; a base, the base is arranged inside the housing, the base is provided with a limiting structure, and the limiting structure forms a medium channel between the base and the housing by supporting between the base and the housing.

[0007] Thus, in this sensor, the limiting structure forms a channel for the medium to flow between the base and the housing, so as to facilitate the inflow of the medium for pressure inlet. At the same time, the limiting structure can also prevent relative rotation between the base and the housing, so as to ensure the accuracy of the measurement performance of the sensor and the stability of the electrical connection of the base.

[0008] According to some embodiments of the utility model, the limiting structure includes a plurality of limiting ribs, the plurality of limiting ribs are arranged on the outer wall of the base and are spaced along the circumferential direction of the base, and the plurality of limiting structures abut against the inner wall of the housing.

[0009] According to some embodiments of the utility model, one side surface of the limiting rib abutting against the inner wall of the housing is configured as an arc surface adapted to the shape of the inner wall of the housing.

[0010] According to some embodiments of the present utility model, one of a positioning rib and a positioning groove is provided on an outer wall of the base, and the other of the positioning rib and the positioning groove is provided on an inner wall of the housing. The positioning rib and the positioning groove are in positioning cooperation to fix a relative position of the base and the housing in a circumferential direction of the housing.

[0011] According to some embodiments of the present utility model, the positioning rib is provided on the outer wall of the base, and a height of the positioning rib protruding from the outer wall of the base is greater than a height of the limiting structure protruding from the outer wall of the base.

[0012] According to some embodiments of the present utility model, the positioning rib and the positioning groove are in clearance fit.

[0013] According to some embodiments of the present utility model, the sensor further includes: a detection assembly, the detection assembly is installed on the housing and connected to the base, the detection assembly includes a pressure measuring element, and a medium can contact the pressure measuring element through the medium channel.

[0014] According to some embodiments of the present utility model, a plurality of anti-collision protrusions are provided at an end of the base facing the detection assembly at intervals, and the plurality of anti-collision protrusions are in abutting cooperation with the detection assembly.

[0015] According to some embodiments of the present utility model, it further includes: a first seal, the first seal is disposed between the housing and the detection assembly and surrounds the base.

[0016] According to some embodiments of the present utility model, the detection assembly includes: a connector; a support frame, the support frame is installed on the housing, the support frame is connected to the connector; a circuit board, the circuit board is disposed on the support frame, and the circuit board is electrically connected to the connector and the base respectively.

[0017] According to some embodiments of the present utility model, it further includes a first seal, the support frame is formed with a through hole, the first seal is disposed in the through hole and in abutting cooperation with the circuit board, and the pressure measuring element is disposed on a side of the circuit board facing the through hole and is surrounded by the first seal.

[0018] According to some embodiments of the present utility model, the support frame is provided with a circuit board mounting groove, a side wall of the circuit board mounting groove is provided with a circuit board limiting portion, the circuit board is disposed in the circuit board mounting groove, and the circuit board limiting portion is adapted to limit the circuit board.

[0019] According to some embodiments of the present utility model, one of a buckle and a clamping arm is provided on the support frame, the other of the buckle and the clamping arm is provided on the connector, the clamping arm is provided with a clamping groove, and the buckle is in clamping cooperation with the clamping groove.

[0020] According to some embodiments of the present utility model, the support frame is provided with one of a first positioning hole and a first positioning post, the connector is provided with the other of the first positioning hole and the first positioning post, and the first positioning post is in positioning cooperation with the first positioning hole.

[0021] According to some embodiments of the present utility model, the support frame is provided with one of a second positioning hole and a second positioning post, the housing is provided with the other of the second positioning hole and the second positioning post, and the second positioning post is in positioning cooperation with the second positioning hole.

[0022] According to some embodiments of the present utility model, the sensor further includes: a temperature measuring element disposed on the base; a protective sleeve connected to the base and covering the temperature measuring element, the protective sleeve being provided with a temperature measuring hole for a medium to contact the temperature measuring element, and the protective sleeve and the inner wall of the housing being in positioning cooperation in the axial direction of the housing.

[0023] According to some embodiments of the present utility model, the housing is provided with a housing stop step, the protective sleeve is provided with a protective sleeve stop step, and the protective sleeve stop step and the housing stop step are abutted against each other in the axial direction of the housing.

[0024] According to some embodiments of the present utility model, the base is provided with one of a limiting groove and a limiting protrusion, the protective sleeve is provided with the other of the limiting groove and the limiting protrusion, and the limiting protrusion and the limiting groove are in limiting cooperation to limit the relative position of the base and the protective sleeve in the circumferential direction of the base.

[0025] According to the heat management system of the second aspect embodiment of the present utility model, it includes: the above-mentioned sensor.

[0026] According to the vehicle of the third aspect embodiment of the present utility model, it includes: the above-mentioned sensor or the above-mentioned heat management system.

[0027] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0028] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0029] Figure 1 is a schematic structural diagram of a sensor according to an embodiment of the present utility model;

[0030] Figure 2is an exploded view of the sensor according to an embodiment of the present utility model;

[0031] Figure 3 is a cross-sectional view of the sensor according to an embodiment of the present utility model;

[0032] Figure 4 is a structural schematic diagram of the detection component according to an embodiment of the present utility model;

[0033] Figure 5 is a structural schematic diagram of the circuit board located on the support frame according to an embodiment of the present utility model;

[0034] Figure 6 is a top view of the support frame according to an embodiment of the present utility model;

[0035] Figure 7 is a structural schematic diagram of the base with a limiting structure according to an embodiment of the present utility model;

[0036] Figure 8 is a structural schematic diagram of the base provided with a limiting protrusion according to an embodiment of the present utility model;

[0037] Figure 9 is a structural schematic diagram of the protective cover with a limiting groove according to an embodiment of the present utility model;

[0038] Figure 10 is a top view of the housing according to an embodiment of the present utility model.

[0039] Reference numerals:

[0040] 100, sensor;

[0041] 10, housing; 11, housing stop step;

[0042] 20, base; 21, limiting structure; 22, anti-collision protrusion;

[0043] 30, positioning rib; 31, positioning groove;

[0044] 40, temperature measuring element; 41, protective cover; 411, protective cover stop step; 42, first temperature measuring hole; 43, second temperature measuring hole;

[0045] 50, limiting groove; 51, limiting protrusion;

[0046] 60, detection component; 61, connector; 611, buckle;

[0047] 62, support frame; 63, circuit board; 631, circuit board mounting groove; 632, circuit board limiting part; 64, pressure measuring element; 65, clamping arm; 66, through hole;

[0048] 70. First seal; 71. Second seal;

[0049] 80. First positioning hole; 81. First positioning post;

[0050] 90. Second positioning hole; 91. Second positioning post. Detailed implementation manners

[0051] Embodiments of the present utility model will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary.

[0052] Below, reference is made to Figures 1-10 describe the sensor 100 according to an embodiment of the present utility model.

[0053] As Figure 1 shown, the sensor 100 according to the first aspect embodiment of the present utility model is used to measure the pressure of a medium, and includes: a housing 10 and a base 20. The base 20 is disposed inside the housing 10. The base 20 is provided with a limiting structure 21. The limiting structure 21 is supported between the base 20 and the housing 10, so that a medium channel can be formed between the base 20 and the housing 10.

[0054] By providing the limiting structure 21 on the base 20 of the sensor 100, and the limiting structure 21 is located between the base and the housing 10, a channel for the medium to flow through is formed between the base 20 and the housing 10, so that the medium can flow in quickly for pressure inlet. The limiting structure 21 abuts against the inner wall of the housing 10, and the limiting structure 21 is in abutting cooperation with the inner wall of the housing 10, so that no relative rotation occurs between the base 20 and the outer shell, thereby ensuring the stability of the electrical connection of the base 20 and also ensuring the accuracy of the measurement performance of the sensor 100.

[0055] Thus, in the sensor 100, the limiting structure 21 forms a channel for the medium to flow through between the base 20 and the housing 10, so that the medium can flow in quickly for pressure inlet without the need to independently provide a pressure inlet. At the same time, the limiting structure 21 can also prevent relative rotation between the base 20 and the outer shell, thereby ensuring the accuracy of the measurement performance of the sensor 100 and also ensuring the stability of the electrical connection performance of the base 20.

[0056] It should be noted that the sensor 100 can be a pressure sensor or a temperature and pressure sensor.

[0057] According to some embodiments of the present utility model, as Figure 7 shown, the limiting structure 21 includes a plurality of limiting ribs. The plurality of limiting ribs are provided on the outer wall of the base 20, and the plurality of limiting ribs are arranged at intervals along the circumferential direction of the base 20. The plurality of limiting structures 21 abut against the inner wall of the housing 10.

[0058] Among them, a medium channel is formed between multiple limiting ribs, which can facilitate the inflow of the medium, thereby facilitating the measurement of the medium pressure. The multiple limiting ribs are arranged at intervals along the circumferential direction of the base 20, so that the multiple limiting ribs on the base 20 can limit the inner wall of the housing 10 in multiple directions, thereby preventing the base 20 from rotating relative to the housing 10.

[0059] According to a specific embodiment of the present invention, as Figure 2 and Figure 7 shown, the side surface of the limiting rib that abuts against the inner wall of the housing 10 is configured as an arc surface adapted to the shape of the inner wall of the housing 10.

[0060] Specifically, since the inner wall of the housing 10 is arc-shaped, the surface of the limiting rib in contact with the inner wall of the housing 10 is also correspondingly set as an arc surface. In this way, the limiting rib can be fitted to the inner wall of the housing 10, so that the limiting rib and the inner wall of the housing 10 can be more closely matched.

[0061] According to some embodiments of the present invention, as Figure 7 and Figure 10 shown, one of the positioning rib 30 and the positioning groove 31 is provided on the outer wall of the base 20, and the other of the positioning rib 30 and the positioning groove 31 is provided on the inner wall of the housing 10. The positioning rib 30 and the positioning groove 31 are in positioning cooperation, so that the relative positions of the base 20 and the housing 10 in the circumferential direction of the housing 10 can be fixed.

[0062] Among them, when the outer wall of the base 20 is provided with the positioning rib 30, the inner wall of the housing 10 is correspondingly provided with the positioning groove 31. When the outer wall of the base 20 is provided with the positioning groove 31, the inner wall of the housing 10 is correspondingly provided with the positioning rib 30. The base 20 and the housing 10 are in positioning cooperation through the positioning rib 30 and the positioning groove 31, which can realize the accurate installation of the base 20 and the housing 10, and can also fix the relative positions of the base 20 and the housing 10 in the circumferential direction of the housing 10.

[0063] According to a specific embodiment of the present invention, as Figure 7 shown, the outer wall of the base 20 is provided with the positioning rib 30, and the height of the positioning rib 30 protruding from the outer wall of the base 20 is greater than the height of the limiting structure 21 protruding from the outer wall of the base 20.

[0064] Specifically, the height of the positioning rib 30 protruding outward in the axial direction perpendicular to the base 20 is greater than the height of the limiting structure 21 protruding outward. This can not only prevent the wrong installation of the base 20, but also play a role in accurate positioning and installation.

[0065] According to some embodiments of the present invention, as Figure 7 and Figure 10As shown, the positioning rib 30 is in clearance fit with the positioning groove 31. In this way, the assembly difficulty between the positioning rib 30 and the positioning groove 31 can be reduced, and the assembly difficulty or instability after assembly caused by position deviation can be avoided, so that the accuracy of the installation direction between the base 20 and the housing 10 can be ensured.

[0066] According to some embodiments of the present invention, as Figure 3 and Figure 4 shown, the sensor 100 further includes: a detection component 60, the detection component 60 is installed on the housing 10, and the detection component 60 is connected to the base 20. The detection component 60 includes a pressure measuring element 64, and the medium can contact the pressure measuring element 64 through the medium channel. The medium can contact the pressure measuring element 64 through the medium channel, so that there is no need to separately provide a pressure inlet.

[0067] According to some embodiments of the present invention, as Figure 4 and Figure 8 shown, the end of the base 20 facing the detection component 60 is provided with a plurality of anti-collision protrusions 22 arranged at intervals, and the plurality of anti-collision protrusions 22 are adapted to be in abutting fit with the detection component 60.

[0068] Among them, the connector 61, the circuit board 63 and the support frame 62 form the detection component 60. The detection component 60 is installed at the upper end of the housing 10, and the detection component 60 is connected to the base 20.

[0069] In addition, the end surface of the base 20 facing the detection component 60 is provided with a plurality of anti-collision protrusions 22. The anti-collision protrusions 22 are set in a cylindrical shape, and the plurality of anti-collision protrusions 22 are arranged at intervals, which can make the force between the base 20 and the detection component 60 more uniform, and can also eliminate the gap between the base 20 and the detection component 60 during the assembly process, prevent the base 20 and the detection component 60 from colliding, and thus can improve the safety performance of the sensor 100.

[0070] According to some embodiments of the present invention, as Figure 3 shown, the sensor 100 further includes a first seal 70. The first seal 70 is provided between the housing 10 and the detection component 60 and the first seal 70 surrounds the base 20.

[0071] Among them, the first seal 70 is located between the detection component 60 and the housing 10. The first seal 70 is an O-ring seal. During the installation process, the detection component 60 squeezes the first seal 70, and the first seal 70 surrounds the base 20. The medium is inside the first seal 70. In this way, the leakage of the medium can be avoided from damaging the parts of the detection component 60, and thus the sealing performance between the detection component 60 and the housing 10 can be ensured.

[0072] In addition, a threaded section is provided on the outer periphery of the housing 10. When the sensor 100 needs to be installed on a certain pipeline for measurement, the threaded section of the housing 10 is connected to the pipeline, and the housing 10 and the pipeline are tightly fitted through the thread. The second seal 71 is located on one side of the threaded section in the axial direction of the housing 10, which can ensure the sealing between the pipeline and the housing 10 and prevent the liquid in the pipeline from leaking, thereby improving the safety of the sensor 100.

[0073] According to some embodiments of the present invention, as Figure 2 and Figure 3 shown, the detection assembly 60 includes: a connector 61, a support frame 62, and a circuit board 63. The support frame 62 is installed on the housing 10, the support frame 62 is connected to the connector 61, and the circuit board 63 is disposed on the support frame 62. The circuit board 63 is electrically connected to the connector 61 and the base 20 respectively.

[0074] According to some embodiments of the present invention, as Figure 3 shown, the sensor 100 further includes a first seal 70. The support frame 62 is formed with a through hole 66. The first seal 70 is disposed in the through hole 66, and the first seal 70 is in abutting cooperation with the circuit board 63. The pressure measuring element 64 is disposed on one side of the circuit board 63 facing the through hole 66, and the pressure measuring element 64 is surrounded by the first seal 70.

[0075] Among them, the detection assembly 60 is mainly composed of a connector 61, a support frame 62, a circuit board 63, and a pressure measuring element 64. The circuit board 63 is disposed in the support frame 62. The support frame 62 can not only provide an installation space for the circuit board 63, but also play a role in protecting the circuit board 63. During the installation process, it can avoid damage caused by extrusion between the circuit board 63 and the housing 10. The first seal 70 is located in the through hole 66 of the support frame 62, and the first seal 70 is placed on the annular support platform of the housing 10, which can increase the contact area between the first seal 70 and the annular support platform, thereby preventing the first seal 70 from being damaged due to overpressure and causing the sealing effect of the first seal 70 to fail. The first seal 70 is in contact with the circuit board 63 and the annular support platform respectively. The first seal 70 contains a medium. The first seal 70 can divide the circuit board 63 into a medium isolation area and a medium contact area. In this way, it can ensure that the pressure core in the medium area is in full contact with the medium, thereby ensuring the pressure measurement accuracy and preventing the medium from leaking, thereby ensuring the sealing of the sensor 100.

[0076] Furthermore, the circuit board 63 is a ceramic circuit board 63. Compared with the flexible circuit board 63, the ceramic circuit board 63 can prevent the circuit board 63 from being damaged during the press-fitting process of the sensor 100. At the same time, the ceramic circuit board 63 can also act as an extrusion plane and deform by extrusion with the first seal 70, thereby ensuring the sealing performance of the sealing cavity in the sensor 100.

[0077] In addition, after the detection component 60 is installed in place in the housing 10, the upper part of the housing 10 will be riveted, which can fix the installation position of the detection component 60, thereby ensuring the effective seal within the first seal 70. At the same time, vulcanized silicone rubber (RTV glue) is applied around the riveting circumference to isolate the outside water vapor from entering the connector 61 and damaging the circuit board 63. Among them, the connector 61, the support frame 62, and the housing 10 are designed with a positioning and anti-misassembly structure, which is convenient for the automated assembly production of the product.

[0078] According to some embodiments of the present invention, as Figure 5 and Figure 6 shown, the support frame 62 is provided with a circuit board installation groove 631, the inner wall of the circuit board installation groove 631 is provided with a circuit board limiting portion 632, the circuit board 63 is disposed in the circuit board installation groove 631, and the circuit board limiting portion 63 is adapted to limit the circuit board 632.

[0079] Among them, the circuit board 63 is disposed in the circuit board installation groove 631, and the circuit board 63 is fixed in the circuit board installation groove 631 through the circuit board limiting portion 632, which can prevent the circuit board 63 from moving, ensure the stability of the electrical connection between the circuit board 63 and the connector 61, and also avoid damage to the product components caused by the rigid contact between the circuit board 63 and the housing 10. Moreover, the circuit board limiting portion 632 is an inclined surface protrusion, and the inclined surface plays a guiding role, which is convenient for the circuit board 63 to enter the circuit board installation groove 631.

[0080] In addition, a placement surface for the circuit board 63 is formed on the support frame 62, and a grounding port can also be provided on the placement surface of the circuit board 63, so that the circuit board 63 can be grounded through the housing.

[0081] According to the specific embodiments of the present invention, as Figure 4 and Figure 5 shown, the support frame 62 is provided with one of a buckle 611 and a clamping arm 65, the connector 61 is provided with the other of the buckle 611 and the clamping arm 65, the clamping arm 65 is provided with a clamping groove, and the buckle 611 is in clamping fit with the clamping groove.

[0082] Specifically, when the support frame 62 is provided with a buckle 611, correspondingly, the connector 61 is provided with a clamping arm 65. When the support frame 62 is provided with a clamping arm 65, correspondingly, the connector 61 is provided with a buckle 611. In this way, the buckle 611 is engaged with the clamping groove, which can facilitate the connection and cooperation between the support frame 62 and the connector 61, thereby facilitating the disassembly and installation of the support frame 62 and the connector 61, and ensuring the effective connection between the support frame 62 and the connector 61, and ensuring the normal communication function.

[0083] According to a specific embodiment of the present invention, as Figure 3 and Figure 5 shown, the support frame 62 is provided with one of a first positioning hole 80 and a first positioning post 81, and the connector 61 is provided with the other of the first positioning hole 80 and the first positioning post 81. The first positioning post 81 is in positioning cooperation with the first positioning hole 80.

[0084] Specifically, when the upper surface of the support frame 62 is provided with a first positioning hole 80, the lower end of the connector 61 is correspondingly provided with a first positioning post 81. When the upper surface of the support frame 62 is provided with a first positioning post 81, the lower end of the connector 61 is correspondingly provided with a first positioning hole 80. In this way, when the support frame 62 is connected to the connector 61, the mutual cooperation between the first positioning post 81 and the first positioning hole 80 can achieve the accurate installation of the support frame 62 and the connector 61, and can also ensure the effective connection between the support frame 62 and the connector 61, thereby ensuring the stability of signal transmission.

[0085] According to some embodiments of the present invention, as Figure 3 and Figure 10 shown, the support frame 62 is provided with one of a second positioning hole 90 and a second positioning post 91, and the housing 10 is provided with the other of the second positioning hole 90 and the second positioning post 91. The second positioning post 91 is in positioning cooperation with the second positioning hole 90.

[0086] Among them, when the lower end of the support frame 62 is provided with a second positioning post 91, the housing 10 is correspondingly provided with a second positioning hole 90. When the lower end of the support frame 62 is provided with a second positioning hole 90, the housing 10 is correspondingly provided with a second positioning post 91. In this way, when the support frame 62 is connected to the housing 10, the mutual cooperation between the second positioning post 91 and the second positioning hole 90 can achieve the accurate installation of the support frame 62 and the housing 10, and can also ensure the effective connection between the support frame 62 and the housing 10.

[0087] According to some embodiments of the present invention, as Figure 3As shown, the sensor 100 further includes a temperature measuring element 40 and a protective sleeve 41. The temperature measuring element 40 is disposed on the base 20. The protective sleeve 41 is connected to the base 20, and the protective sleeve 41 covers the temperature measuring element 40. The protective sleeve 41 is provided with a temperature measuring hole for the medium to contact the temperature measuring element 40. The protective sleeve 41 and the inner wall of the housing 10 are positioned and fitted in the axial direction of the housing 10.

[0088] Wherein, connecting the protective sleeve 41 to the base 20 can ensure that the protective sleeve 41 and the base 20 do not rotate relative to each other, and the protective sleeve 41 covers the temperature measuring element 40, which can protect the temperature measuring element 40. Further, the protective sleeve 41 is provided with a temperature measuring hole for the medium to contact the temperature measuring element 40. The temperature measuring hole includes a first temperature measuring hole 42 and a second temperature measuring hole 43. The first temperature measuring hole 42 is disposed on the end face of the protective sleeve 41 away from the base 20, which can facilitate the medium to enter from the first temperature measuring hole 42 and can quickly contact the medium for temperature measurement. The second temperature measuring hole 43 is disposed on the peripheral wall of the protective sleeve 41 and is adjacent to the end of the protective sleeve 41 away from the base 20, which can further increase the contact area between the medium and the peripheral direction of the protective sleeve 41 and the temperature measuring element 40, thereby ensuring the accuracy of temperature measurement and accelerating the contact rate between the medium and the temperature measuring element 40. Among them, the temperature measuring element 40 can be a thermistor.

[0089] Further, a plurality of second temperature measuring holes 43 can be provided on the peripheral wall of the protective sleeve 41, and the plurality of second temperature measuring holes 43 extend to a position where the medium contacts the temperature measuring element 40, which can further accelerate the contact rate between the medium and the temperature measuring element 40.

[0090] In addition, the second temperature measuring holes 43 are distributed at intervals along the circumferential direction of the protective sleeve 41, which can make the medium contact the temperature measuring element 40 evenly, thereby further ensuring the accuracy of temperature measurement of the temperature measuring element 40. For example, the second temperature measuring holes 43 can be four, and the four second temperature measuring holes 43 are evenly spaced in the circumferential direction of the protective sleeve 41, and the connection lines of the two pairs of opposite second temperature measuring holes 43 form a cross line.

[0091] Wherein, a groove can be provided on the outer wall of the protective sleeve 41, which can cooperate with the protrusion provided on the inner wall of the housing 10, which can not only play a positioning role but also prevent circumferential rotation between the protective sleeve 41 and the housing 10, thereby ensuring the correct installation of the protective sleeve 41 and the housing 10.

[0092] In addition, as Figure 3 shown, a part of the lower end of the temperature measuring element 40 is located outside the housing 10, which can more quickly and accurately detect the medium temperature.

[0093] According to some embodiments of the present invention, as Figure 3As shown, a housing stop step 11 is provided on the inner wall of the housing 10, and a protective sleeve stop step 411 is provided on the protective sleeve 41. The protective sleeve stop step 411 and the housing stop step 11 are axially abutted against each other in the housing 10.

[0094] Among them, a housing stop step 11 is provided in the middle of the housing 10. The housing stop step 11 is in the shape of a sunk platform. One end of the protective sleeve 41 protrudes to form a protective sleeve stop step 411. The housing stop step 11 can prevent the protective sleeve stop step 411 from moving axially.

[0095] According to some embodiments of the present invention, as Figure 8 and Figure 9 shown, the base 20 is provided with one of a limiting groove and a limiting protrusion, and the protective sleeve 41 is provided with the other of the limiting groove and the limiting protrusion. The limiting protrusion and the limiting groove are in limiting cooperation, so as to limit the relative position of the base 20 and the protective sleeve 41 in the circumferential direction of the base 20.

[0096] Among them, when the base 20 is provided with a limiting protrusion 51, correspondingly, the protective sleeve 41 is provided with a limiting groove 50. The limiting protrusion 51 of the base 20 is embedded in the limiting groove 50 of the protective sleeve 41, which can not only be used for positioning installation, but also prevent the base 20 and the protective sleeve 41 from rotating circumferentially, so as to limit the relative position of the base 20 and the protective sleeve 41 in the circumferential direction of the base 20.

[0097] The thermal management system according to the embodiment of the second aspect of the present invention includes: the sensor 100 of the above embodiment.

[0098] The vehicle according to the embodiment of the second aspect of the present invention includes: the sensor 100 of the above embodiment or the thermal management system of the above embodiment.

[0099] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0100] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0101] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A sensor for measuring the pressure of a medium, characterized in that: include: case; A base, the base is arranged in the shell, the base is provided with a limiting structure, and the limiting structure is supported between the base and the shell to form a medium channel between the base and the shell; The limiting structure includes a plurality of limiting ribs, the plurality of limiting ribs are arranged on the outer wall of the base and are arranged at intervals along the circumference of the base, and the plurality of limiting ribs stop at the inner wall of the shell.

2. The sensor according to claim 1, characterized in that A side surface of the limiting rib abutting against the inner wall of the shell is configured as an arc surface matching the shape of the inner wall of the shell.

3. The sensor according to claim 1, characterized in that The outer wall of the base is provided with one of the positioning ribs and the positioning grooves, and the inner wall of the shell is provided with the other of the positioning ribs and the positioning grooves. The positioning ribs and the positioning grooves are positioned and matched to fix the relative positions of the base and the shell in the circumferential direction of the shell.

4. The sensor according to claim 3, characterized in that The outer wall of the base is provided with the positioning rib, and the height of the positioning rib protruding from the outer wall of the base is greater than the height of the limiting structure protruding from the outer wall of the base.

5. The sensor according to claim 3, characterized in that The positioning rib is loosely matched with the positioning groove.

6. The sensor according to claim 1, characterized in that Also includes: A detection component is installed on the shell and connected to the base. The detection component includes a pressure measuring element. The medium can contact the pressure measuring element through the medium channel.

7. The sensor according to claim 6, characterized in that One end of the base facing the detection component is provided with a plurality of anti-collision protrusions arranged at intervals, and the plurality of anti-collision protrusions are suitable for abutting and cooperating with the detection component.

8. The sensor according to claim 6, characterized in that Also includes: A first sealing member is disposed between the housing and the detection assembly and surrounds the base.

9. The sensor according to claim 6, characterized in that The detection component comprises: Connectors; A support frame, the support frame is mounted on the housing, and the support frame is connected to the connector; A circuit board is arranged on the support frame, and the circuit board is electrically connected to the connector and the base respectively.

10. The sensor according to claim 9, characterized in that It also includes a first sealing member, the support frame is formed with a through hole, the first sealing member is arranged in the through hole and abuts against the circuit board, and the pressure measuring element is arranged on a side of the circuit board facing the through hole and is surrounded by the first sealing member.

11. The sensor according to claim 10, characterized in that The support frame is provided with a circuit board installation slot, a side wall of the circuit board installation slot is provided with a circuit board limiting portion, the circuit board is arranged in the circuit board installation slot, and the circuit board limiting portion is suitable for limiting the circuit board.

12. The sensor according to claim 10, characterized in that The support frame is provided with one of a buckle and a clamp arm, the connector is provided with the other of the buckle and the clamp arm, the clamp arm is provided with a clamping groove, and the buckle is clamped and matched with the clamping groove.

13. The sensor according to claim 10, characterized in that The support frame is provided with one of a first positioning hole and a first positioning column, and the connector is provided with the other of the first positioning hole and the first positioning column, and the first positioning column is positioned and matched with the first positioning hole.

14. The sensor according to claim 10, characterized in that The support frame is provided with one of a second positioning hole and a second positioning column, and the shell is provided with the other of the second positioning hole and the second positioning column, and the second positioning column is positioned and matched with the second positioning hole.

15. The sensor according to claim 1, characterized in that Also includes: A temperature measuring element, wherein the temperature measuring element is arranged on the base; A protective cover is connected to the base and covers the temperature measuring element. The protective cover is provided with a temperature measuring hole for the medium to contact the temperature measuring element. The protective cover is positioned and matched with the shell in the axial direction of the shell.

16. The sensor according to claim 15, characterized in that The shell is provided with a shell stop step, and the protective sleeve is provided with a protective sleeve stop step. The protective sleeve stop step and the shell stop step abut against each other in the axial direction of the shell.

17. The sensor according to claim 15, characterized in that The base is provided with one of a limiting groove and a limiting protrusion, and the protective cover is provided with the other of a limiting groove and a limiting protrusion. The limiting protrusion and the limiting groove are limitedly matched to limit the relative position of the base and the protective cover in the circumferential direction of the base.

18. A thermal management system, characterized in that: The invention comprises the sensor according to any one of claims 1 to 17.

19. A vehicle, characterized in that: include: A sensor according to any one of claims 1 to 17 or a thermal management system according to claim 18.

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