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 temperature sensing piece is provided with a sensing part, and the sensing part is used for sensing the temperature of the medium; the protective sleeve is arranged in the shell and arranged outside the temperature sensing part in a sleeving mode, the protective sleeve is provided with an extending part, the extending part extends out of the shell, the sensing part is arranged in the extending part, the length, extending out of the shell, of the extending part is a, and the value range of a is that a is smaller than or equal to 15 mm. The extension part of the protective sleeve 30 extends out of the shell 10, and the length of the extension part extending out of the shell 10 is less than or equal to 15mm, so that the damage to the protective sleeve 30 due to overlarge impact area of a medium on the protective sleeve 30 can be avoided, and the protection of the protective sleeve 30 can be realized.

Description

Technical Field

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

[0002] The location of the sensing part in the temperature sensing element will affect the response speed of the temperature sensing and the accuracy of the temperature detection. In the related art, the location of the sensing part is difficult to be well controlled. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a sensor, which is arranged on the extension part through the induction part, and controls the length of the extension part extending out of the shell, so that the induction part can have a good response speed and accuracy, and can prevent the medium from having too large an impact area on the protective cover, thereby preventing the protective cover from being damaged, and thus protecting the protective cover.

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

[0005] The utility model further provides a vehicle.

[0006] The sensor according to the utility model comprises: a housing; a temperature sensing element, wherein the temperature sensing element is provided with a sensing portion, and the sensing portion is used to sense the temperature of the medium;

[0007] A protective sleeve, wherein the protective sleeve is arranged in the shell and sleeved outside the temperature sensing component, and the protective sleeve is provided with an extension portion, the extension portion extends outside the shell, the sensing portion is arranged in the extension portion, the extension portion extends out of the shell by a length a, and the value range of a is: a≤15mm.

[0008] In some examples of the present invention, 2.5 mm≤a≤15 mm.

[0009] In some examples of the present invention, the distance between the sensing portion and an end surface of the extending portion away from the housing is b, and the value range of b is: 0.5 mm ≤ b ≤ 2 mm.

[0010] In some examples of the present invention, a temperature measuring hole is provided at the end of the extension portion away from the shell, and the temperature measuring hole is used for the medium to contact the sensing portion.

[0011] In some examples of the present invention, the temperature measuring hole includes a first temperature measuring hole and a second temperature measuring hole, the first temperature measuring hole is arranged on the end surface of the extension portion away from the shell, and the second temperature measuring hole is arranged on the peripheral wall of the extension portion.

[0012] In some examples of the present invention, an outer surface of the sensing portion is spaced apart from an inner wall surface of the protective sleeve.

[0013] In some examples of the present invention, a step portion is provided in the shell, and the protective sleeve is further provided with a matching surface, and in the axial direction of the shell, the matching surface is limitedly matched with the surface of the step portion.

[0014] In some examples of the present invention, the sensor further includes a temperature measuring element base, the temperature measuring element base is disposed in the housing, and the temperature sensing component is connected to the temperature measuring element base.

[0015] In some examples of the present invention, the temperature measuring element base includes a base body and a conductive sheet that are fixedly connected, and the conductive sheet is provided with at least one welding position for welding with the temperature sensing component.

[0016] In some examples of the utility model, the seat body includes a seat plate and a boss, the boss is arranged on the seat plate and protrudes from the seat plate, the seat body is provided with a through hole, and the through hole passes through the seat plate and the boss; the conductive sheet is suitable for passing through the through hole, the conductive sheet has a conductive end, and the boss is used to support the conductive end.

[0017] In some examples of the present invention, the seat body further includes an outer ring plate, which is arranged around the seat plate. The outer ring plate and the seat plate together enclose an open cavity, and the boss is arranged in the cavity.

[0018] The thermal management system according to the utility model comprises: the sensor mentioned above.

[0019] The vehicle according to the present utility model comprises: the sensor mentioned above or the thermal management system mentioned above.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 is a schematic diagram of the structure of a sensor according to an embodiment of the utility model;

[0023] Figure 2 is an exploded diagram of a sensor according to an embodiment of the utility model;

[0024] Figure 3is a cross-sectional view of a sensor according to an embodiment of the utility model;

[0025] Figure 4 is a schematic diagram of a partial structure of a sensor at a first angle according to an embodiment of the utility model;

[0026] Figure 5 is a partial structural schematic diagram of a sensor at a second angle according to an embodiment of the utility model;

[0027] Figure 6 It is a schematic diagram of the structure of the connecting parts;

[0028] Figure 7 is a schematic diagram of the structure of the support member at a first angle;

[0029] Figure 8 is a schematic diagram of the second angle structure of the support member;

[0030] Fig. 9 It is a schematic diagram of the partial structure of the temperature measuring element base.

[0031] Reference numerals:

[0032] 1. Sensor;

[0033] 10. Shell; 11. Step portion; 20. Temperature sensing element; 21. Sensing portion; 30. Protective sleeve; 31. Second limiting portion; 32. Matching surface; 33. Extending portion; 34. First temperature measuring hole; 35. Second temperature measuring hole; 40. Temperature measuring element base; 41. Third limiting portion; 42. Protective element; 43. Seat body; 431. Seat plate; 432. Boss; 433. Through hole; 434. Outer ring plate; 44. Conductive sheet; 45. Welding position; 50. Pressure sensing element; 60. Sealing element; 70. Support element; 71. First positioning portion; 72. Abutting portion; 73. Fourth positioning portion; 74. Second plug-in portion; 80. Connector; 81. Third positioning portion; 82. First plug-in portion. DETAILED DESCRIPTION

[0034] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0035] Reference below Figure 1-Figure 9 A sensor 1 according to an embodiment of the present invention is described. The sensor 1 in the present application may be a temperature and pressure sensor 1, which can measure the pressure and temperature of a corresponding medium.

[0036] like Figure 1-Figure 3As shown, the sensor 1 according to the embodiment of the utility model comprises: a housing 10, a temperature sensing element 20 and a protective cover 30. The housing 10 mainly plays the role of installation and matching. The temperature sensing element 20 mainly senses and measures the temperature. The protective cover 30 mainly plays the role of protection, and the temperature sensing element 20 can be an NTC thermistor.

[0037] like Figure 3 As shown, the temperature sensing element 20 is provided with a sensing portion 21, and the sensing portion 21 is used to sense the temperature of the medium. The sensing portion 21 mainly plays a sensing role and can sense the temperature of the medium.

[0038] like Figure 3 As shown, the protective sleeve 30 is arranged in the shell 10, and the protective sleeve 30 is sleeved outside the temperature sensing element 20, and the protective sleeve 30 is provided with an extension portion 33, and the extension portion 33 extends outside the shell 10. The length of the extension portion 33 extending outside the shell 10 is a, and the value range of a is: a≤15mm. The temperature sensing element 20 is arranged inside the protective sleeve 30, so that the protective sleeve 30 can be used to protect the temperature sensing element 20, thereby reducing the impact of the medium on the temperature sensing element 20, so that the temperature sensing element 20 can work better. The protective sleeve 30 is arranged in the shell 10, so that the protective sleeve 30 can be fixed, so that the setting of the protective sleeve 30 is more reliable and stable, and the protective sleeve 30 can better protect the temperature sensing element 20.

[0039] It should be noted that a temperature measuring hole is provided on the side of the protective sleeve 30 away from the seat body 43, and the medium can enter the protective sleeve 30 through the temperature measuring hole, and then can contact the temperature sensing element 20 and the sensing part 21. Therefore, in order for the medium to better contact the sensing part 21, the protective sleeve 30 at least partially extends out of the housing 10. Specifically, the extension portion 33 is the portion of the protective sleeve 30 extending out of the housing 10, and the sensing portion 21 is arranged in the extension portion 33. The length of the extension portion 33 needs to meet certain requirements, that is, the length of the extension portion 33 of the protective sleeve 30 extending out of the housing 10 needs to be less than or equal to 15 mm. If the extension portion 33 is too short, the sensing portion 20 cannot be protected, resulting in the sensing portion 21 being easily damaged. If the extension portion 33 is too long, the response speed of the sensing portion 21 sensing the temperature is affected. When the length of the extension portion 33 is less than or equal to 15 mm, the sensing portion 21 can have a better response speed and accuracy, and at the same time, it can avoid the medium from having too large an impact area on the protective sleeve 30, causing damage to the protective sleeve 30, thereby protecting the protective sleeve 30. Therefore, by designing the length of the extension portion 33 and arranging the sensing portion 21 in the extension portion 33, the position setting of the sensing portion 21 is relatively easy to control.

[0040] In some embodiments of the present invention, 2.5mm≤a≤15mm; that is, the length of the extension portion 33 of the protective sleeve 30 extending out of the housing 10 needs to be less than or equal to 15mm, and also needs to be greater than or equal to 2.5mm. It should be noted that since the sensing portion 21 is located inside the extension portion 33, the sensing portion 21 can be in contact with the medium while the protective sleeve 30 protects the temperature sensing element 20, so that the temperature information of the medium can be measured.

[0041] In some embodiments of the present invention, Figure 3 As shown, the distance between the sensing part 21 and the end surface of the extension part 33 away from the housing 10 is b, and the value range of b is: 0.5mm≤b≤2mm. The distance between the sensing part 21 and the end surface of the extension part 33 away from the housing 10 needs to meet a certain range, that is, the distance between the sensing part 21 and the end surface of the extension part 33 away from the housing 10 needs to be greater than or equal to 0.5mm, so that the sensing part 21 can be prevented from extending outside the protective cover 30, thereby preventing a large amount of medium from directly impacting the sensing part 21, thereby protecting the sensing part 21. The distance between the sensing part 21 and the end surface of the extension part 33 away from the housing 10 also needs to be less than or equal to 2mm. It can be understood that the greater the distance between the sensing part 21 and the end surface of the extension part 33 away from the housing 10, the longer the time required for the sensing part 21 to contact the medium, which will affect the response speed of the sensor 1.

[0042] In some embodiments of the present invention, Figure 3 and Figure 5 As shown, a temperature measuring hole is provided at the end of the extension portion 33 away from the housing 10, and the temperature measuring hole is used for the medium to contact the sensing portion 21. The temperature measuring hole mainly plays a role in guiding the flow, and the external medium can enter the protective sleeve 30 through the temperature measuring hole and contact the sensing portion 21, so that the sensing portion 21 can sense and transmit the temperature information of the medium.

[0043] In some embodiments of the present invention, Figure 3 and Figure 5As shown, the temperature measuring hole includes a first temperature measuring hole 34 and a second temperature measuring hole 35. The first temperature measuring hole 34 is arranged on the end face of the extension part 33 away from the shell 10, and the second temperature measuring hole 35 is arranged on the peripheral wall of the extension part 33. It can be understood that the second temperature measuring hole 35 is also located at the end of the extension part 33 away from the shell 10. In other words, the temperature measuring hole is composed of the first temperature measuring hole 34 and the second temperature measuring hole 35. The first temperature measuring hole 34 is arranged at the end of the extension part 33 away from the shell 10, so that the medium can directly enter the protective sleeve 30 from the end face of the protective sleeve 30 and contact the sensing part 21. The second temperature measuring hole 35 is arranged on the peripheral wall of the extension part 33, so that the medium can directly enter the protective sleeve 30 from the peripheral wall of the protective sleeve 30 and contact the sensing part 21. In this way, the contact and flow channel between the medium and the sensing part 21 can be increased, and the reliability of the contact between the sensing part 21 and the medium can be improved.

[0044] In some embodiments of the present invention, Figure 3 As shown, the outer surface of the sensing part 21 is spaced apart from the inner wall of the protective cover 30. That is, there is a gap between the outer surface of the sensing part 21 and the inner wall of the protective cover 30, thereby avoiding collision between the outer surface of the sensing part 21 and the inner wall of the protective cover 30, thereby protecting the sensing part 21 and enabling the sensing part 21 to work better.

[0045] In some embodiments of the present invention, Figure 3 As shown, a step portion 11 is provided in the housing 10, and a matching surface 32 is also provided in the protective sleeve 30. In the axial direction of the housing 10, the matching surface 32 is limitedly matched with the surface of the step portion 11. Among them, both the step portion 11 and the matching surface 32 can play a limiting role. The step portion 11 is provided in the housing 10, and the matching surface 32 is provided on the protective sleeve 30. In this way, when the protective sleeve 30 is installed on the housing 10, the protective sleeve 30 can be limited in the axial direction of the housing 10 by using the matching of the step portion 11 and the matching surface 32, so that the installation of the protective sleeve 30 can be more accurate, the assembly efficiency is improved, and the setting of the protective sleeve 30 can also be made more stable.

[0046] In some embodiments of the present invention, Figure 1 and Figure 5As shown, the sensor 1 also includes a temperature measuring element base 40, which is arranged in the housing 10, and the temperature sensing element 20 is connected to the temperature measuring element base 40. Among them, the temperature measuring element base 40 mainly plays the role of installation and connection. The temperature measuring element base 40 is arranged in the housing 10, so that the temperature measuring element base 40 can be fixed, so that the setting of the temperature measuring element base 40 is more reliable and stable, and the housing 10 can be used to protect the temperature measuring element base 40, so that the temperature measuring element base 40 can work better. The temperature sensing element 20 is connected to the temperature measuring element base 40, so that the temperature sensing element 20 can be fixed, so that the setting of the temperature sensing element 20 is more reliable and stable, and the temperature sensing element 20 can better measure the temperature of the medium.

[0047] In some embodiments of the present invention, Figure 1 and Figure 5 As shown, the temperature measuring element base 40 includes a fixedly connected base body 43 and a conductive sheet 44, and the conductive sheet 44 is provided with at least one welding position 45 for welding with the temperature sensing element 20. The temperature sensing element 20 is welded on the conductive sheet 44, so that the connection between the conductive sheet 44 and the temperature sensing element 20 can be stabilized, so that the temperature signal measured on the temperature sensing element 20 can be better transmitted through the conductive sheet 44.

[0048] In some embodiments of the present invention, Figure 1 and Figure 5 As shown, the seat body 43 includes a seat plate 431 and a boss 432. The boss 432 is arranged on the seat plate 431 and protrudes from the seat plate 431. The seat body 43 is provided with a through hole 433. The through hole 433 passes through the seat plate 431 and the boss 432. The conductive sheet 44 is suitable for being inserted into the through hole 433. The conductive sheet 44 has a conductive end, and the boss 432 is used to support the conductive end.

[0049] It is understandable that the seat plate 431 is provided with a boss 432 protruding from the seat plate 431, and a through hole 433 penetrating the seat plate 431 and the boss 432 is provided at the position of the boss 432; the conductive sheet 44 has a conductive end, the conductive sheet 44 is suitable for being inserted into the through hole 433, and the conductive end is suitable for being supported on the boss 432. It should be noted that in the conventional temperature measuring element base 40, the conductive sheet 44 is connected to the seat body 43. For example, two conductive sheets 44 are connected to the seat body 43, and the positions of the two conductive sheets 44 on the seat body 43 have the problem of inaccurate positioning. The temperature sensing element 20 is connected to the conductive sheet 44. Since the inaccurate position of the conductive sheet 44 will affect the position of the temperature sensing element 20, the temperature sensing element 20 cannot be quickly contacted with the medium due to the inaccurate setting position, which affects the accuracy of the measurement.

[0050] Therefore, the temperature measuring element base 40 is provided with a boss 432. Since the temperature measuring element base 40 is formed by overmolding, during the demolding process, the conductive sheet 44 is arranged corresponding to the boss 432, so that the position of the conductive sheet 44 can be more accurate. Since the temperature sensing element 20 is connected to the conductive sheet 44, the accuracy of the position of the temperature sensing element 20 can be ensured, so that the temperature sensing element 20 can be quickly contacted with the medium. The boss 432 can make the conductive sheet 44 in the center position, so as to prevent the conductive sheet 44 from interfering with other parts of the temperature sensing element 20. The provision of the through hole 433 facilitates the conductive end of the conductive sheet 44 to contact the boss 432.

[0051] In some embodiments of the present invention, Figure 5 As shown, the seat body 43 further includes an outer ring plate 434, which is arranged around the seat plate 431. The outer ring plate 434 and the seat plate 431 together enclose an open cavity, and the boss 432 is arranged in the cavity. In other words, the seat body 43 is composed of the seat plate 431 and the outer ring plate 434. The outer ring plate 434 is annular and surrounds the seat plate 431 to form an open cavity. The cavity can accommodate the boss 432. The conductive sheet 44 is arranged corresponding to the boss 432, so that the arrangement position of the conductive sheet 44 can be positioned.

[0052] Furthermore, if Figure 1-Figure 4 As shown, the temperature sensing element 20 is connected to the side of the seat body 43 adjacent to the protective sleeve 30, and the seat body 43 is matched with the temperature sensing element 20. The temperature sensing element 20 is connected to the side of the seat body 43 adjacent to the protective sleeve 30, so that the temperature sensing element 20 can be fixed, so that the setting of the temperature sensing element 20 is more reliable and stable, so that the temperature sensing element 20 can work better, and it is also convenient for the temperature sensing element 20 to cooperate with the protective sleeve 30. Since the temperature sensing element 20 is installed on the seat body 43, the seat body 43 is matched with the protective sleeve 30, so that the setting is more reasonable, and when the seat body 43 and the protective sleeve 30 are installed and matched, the temperature sensing element 20 and the protective sleeve 30 are convenient to cooperate.

[0053] Specifically, Figure 1 and Figure 5As shown, a first limiting portion is provided on the housing 10, a second limiting portion 31 is provided on the protective sleeve 30, and a third limiting portion 41 is provided on the seat body 43, and the second limiting portion 31 and the third limiting portion 41 are respectively matched with the first limiting portion for limiting. Among them, the first limiting portion, the second limiting portion 31 and the third limiting portion 41 can all play a limiting role. The first limiting portion is provided on the housing 10, and the second limiting portion 31 is provided on the protective sleeve 30, so that the first limiting portion can cooperate with the second limiting portion 31, so that the housing 10 can be used to limit the protective sleeve 30, avoiding a large deflection of the protective sleeve 30 relative to the housing 10, making the setting of the protective sleeve 30 more stable, so that the sensor 1 can work more stably, and it is also convenient to install the protective sleeve 30. Similarly, the third limiting portion 41 is set on the seat body 43, so that the third limiting portion 41 can also cooperate with the first limiting portion, so that the shell 10 can be used to limit the seat body 43 to avoid a large deflection of the seat body 43 relative to the shell 10, so that the setting of the seat body 43 is more stable, so that the sensor 1 can work more stably and it is also convenient for the installation of the seat body 43.

[0054] In addition, if Figure 5 As shown, in the axial direction, the second limiting portion 31 is aligned with the third limiting portion 41. As can be seen from the above, the second limiting portion 31 and the third limiting portion 41 are both matched with the first limiting portion. Therefore, the second limiting portion 31 is aligned with the third limiting portion 41, which can facilitate the second limiting portion 31 and the third limiting portion 41 to be matched with the first limiting portion at the same time, and after the second limiting portion 31 and the third limiting portion 41 are matched with the first limiting portion at the same time, the position between the protective sleeve 30 and the seat body 43 can also be kept relatively stable. It should be noted that the cooperation between the second limiting portion 31 and the third limiting portion 41 and the first limiting portion is mainly to limit the circumferential rotation of the protective sleeve 30 and the seat body 43. The second limiting portion 31 and the third limiting portion 41 can be limiting grooves, and the first limiting portion can be a limiting block.

[0055] Furthermore, if Figure 2 , Figure 3 and Figure 5 As shown, the sensor 1 also includes a pressure sensing component 50, which is arranged in the housing 10. A protective component 42 is arranged at one end of the seat body 43 away from the protective sleeve 30. In the second axial direction, the protective component 42 abuts against the pressure sensing component 50, and the second axial direction is opposite to the first axial direction. The pressure sensing component 50 mainly senses and measures pressure. The pressure sensing component 50 is arranged in the housing 10, so that the housing 10 can be used to protect the pressure sensing component 50, so that the pressure sensing component 50 can work better.

[0056] The protective member 42 mainly plays a protective role. The protective member 42 is set at one end of the seat body 43 away from the protective sleeve 30, so that in the second axial direction, the protective member 42 can abut against the pressure sensing member 50, so that the protective member 42 can be used to eliminate the gap between the pressure sensing member 50 and the seat body 43, thereby avoiding the collision between the pressure sensing member 50 and the seat body 43, thereby affecting the normal use of the sensor 1. It should be noted that the second axial direction is opposite to the first axial direction. Specifically, the first axial direction is the direction of the pressure sensing member 50 toward the protective sleeve 30, and the second axial direction is the direction of the protective sleeve 30 toward the pressure sensing member 50.

[0057] Specifically, Figure 5 As shown, there are multiple protective members 42, and the multiple protective members 42 are arranged at intervals. In this way, the distribution of the protective members 42 on the seat body 43 can be more comprehensive, so that the protective members 42 can better contact with the pressure sensing member 50, and the arrangement of multiple protective members 42 can also disperse the pressure of the pressure sensing member 50 on the seat body 43. It should be noted that when the pressure sensing member 50 is press-fitted, the protective member 42 will be partially damaged, so that zero contact between the pressure sensing member 50 and the seat body 43 can be ensured, thereby eliminating the gap between the pressure sensing member 50 and the seat body 43, thereby avoiding collision between the pressure sensing member 50 and the seat body 43.

[0058] In addition, if Figure 2 and Figure 3 As shown, the sensor 1 also includes a seal 60, which is spaced apart from the seat 43, and the seal 60 is sealingly disposed between the pressure sensing component 50 and the housing 10. Among them, the seal 60 mainly plays a sealing role. It should be noted that the seal 60 is sleeved on the seat 43, so the seal 60 is spaced apart from the seat 43, that is, there is a gap between the seal 60 and the seat 43, which is convenient for installing the seal 60. Moreover, the seal 60 is sealingly disposed between the pressure sensing component 50 and the housing 10, so that the seal 60 can seal the gap between the pressure sensing component 50 and the housing 10, thereby preventing the medium from entering the interior of the sensor 1 from the gap between the pressure sensing component 50 and the housing 10, causing damage to the corresponding electronic components and affecting the normal operation of the sensor 1.

[0059] As an optional embodiment, it should be noted that, since the pressure sensing component 50 squeezes the sealing component 60, the sealing component 60 is deformed, so that the sealing component 60 can better play a sealing role. However, in order to protect the sealing component 60 and prevent the sealing component 60 from being damaged, a pressure stop surface can be provided inside the housing 10, and the pressure stop surface is mainly used to limit the movement of the support component 70, so as to limit the degree of squeezing of the sealing component 60 by the pressure sensing component 50.

[0060] In addition, if Figure 2 , Figure 3 and Figure 7 As shown, the sensor 1 also includes a support member 70, and the support member 70 is provided with a first positioning portion 71 and an abutting portion 72. A second positioning portion is provided on the shell 10, and the first positioning portion 71 is positioned and matched with the second positioning portion, and the abutting portion 72 is abutted and matched with the outer wall surface of the pressure sensing member 50. Among them, the support member 70 mainly plays the role of support and installation. The first positioning portion 71 and the second positioning portion can both play the role of positioning. The first positioning portion 71 is arranged on the support member 70, and the second positioning portion is arranged on the shell 10. In this way, when the support member 70 is matched with the shell 10, the first positioning portion 71 and the second positioning portion can be used to calibrate the position between the support member 70 and the shell 10, so that the installation between the support member 70 and the shell 10 can be made more accurate and fast, thereby improving the assembly efficiency. The abutment portion 72 can play an abutting role. The abutment portion 72 is arranged on the support member 70, so that when the pressure sensing component 50 is connected to the support member 70, the abutment portion 72 can abut against the outer wall surface of the pressure sensing component 50, thereby making the connection between the pressure sensing component 50 and the support member 70 more secure and stable, and the pressure sensing component 50 can work better.

[0061] Furthermore, if Figure 2 , Figure 3 and Figure 6 As shown, the sensor 1 further includes a connecting member 80, which abuts against the side of the pressure sensing member 50 away from the seat body 43. The connecting member 80 mainly serves the function of connection and installation. The connecting member 80 abuts against the side of the pressure sensing member 50 away from the seat body 43, that is, the connecting member 80 and the supporting member 70 are respectively located on both sides of the pressure sensing member 50. The connecting member 80 abuts against the side of the pressure sensing member 50 away from the seat body 43, which can further improve the stability of the pressure sensing member 50.

[0062] Specifically, Figure 2 , Figure 6 , Figure 7 and Figure 8As shown, the connector 80 is provided with a third positioning portion 81 and a first plug-in portion 82, and the support member 70 is also provided with a fourth positioning portion 73 and a second plug-in portion 74. The third positioning portion 81 is positioned and matched with the fourth positioning portion 73, and the first plug-in portion 82 is plug-matched with the second plug-in portion 74. Among them, the third positioning portion 81 and the fourth positioning portion 73 can both play a positioning role. The third positioning portion 81 is provided on the connector 80, and the fourth positioning portion 73 is provided on the support member 70. In this way, when the connector 80 is installed and matched with the support member 70, the third positioning portion 81 and the fourth positioning portion 73 can be used to calibrate the position between the connector 80 and the support member 70, so that the installation between the connector 80 and the support member 70 can be more accurate and fast, thereby improving the assembly efficiency.

[0063] The first plug-in portion 82 and the second plug-in portion 74 can both play a plug-in role. The first plug-in portion 82 is arranged on the connector 80, and the second plug-in portion 74 is arranged on the support member 70. In this way, when the connector 80 and the support member 70 are installed and matched, the first plug-in portion 82 can be plugged and matched with the second plug-in portion 74, so that the connection between the connector 80 and the support member 70 can be more stable. It should be noted that after the connector 80 and the support member 70 are installed, they can wrap the pressure sensing member 50 located in the middle to a certain extent, so as to avoid contact between the pressure sensing member 50 and the housing 10, thereby avoiding damage to the pressure sensing member 50 during the press-fitting process, and ensuring the effective connection between the connector 80 and the pressure sensing member 50.

[0064] It should be noted that the seal 60 can separate the gap between the pressure sensing element 50 and the housing 10 into two areas, that is, the inside of the seal 60 is the medium contact area, and the outside of the seal 60 is the medium isolation area, and the third limit portion 41 is also a pressure inlet when limited, and the medium can enter the medium contact area from the third limit portion 41, and then can perform contact sensing with the pressure sensing element 50. Specifically, when the sensor 1 measures the pressure of the medium, the medium can successively enter the medium contact area along the second limit portion 31 and the third limit portion 41 to perform contact sensing with the pressure sensing element 50, and the pressure sensing element 50 will transmit the corresponding signal to the connector 80 after sensing, and then output the signal to the outside of the sensor 1.

[0065] Similarly, when the sensor 1 measures the temperature of the medium, the medium can enter the protective sleeve 30 through the temperature measuring hole and contact the temperature sensing component 20. The temperature sensing component 20 transmits the sensed medium temperature signal to the pressure sensing component 50 through the seat 43. The pressure sensing component 50 is provided with an electrical connection hole. The medium temperature signal can be transmitted to the connector 80 along the bottom of the pressure sensing component 50 and the electrical connection hole in turn, and then the signal is output to the outside of the sensor 1. Among them, the electrical connection hole is located in the medium isolation area, which can prevent the medium from leaking through the electrical connection hole and causing damage to the internal components of the sensor 1.

[0066] As an optional embodiment, the pressure sensing member 50 is a ceramic member. That is, the temperature sensing member 20 in the pressure sensing member 50 can be a ceramic temperature sensing member 20. Compared with the flexible temperature sensing member 20, the ceramic temperature sensing member 20 can better prevent the sensor 1 from causing damage to the temperature sensing member 20 during the installation process. Moreover, when the pressure sensing member 50 presses the sealing member 60, the ceramic material can better press the sealing member 60, thereby ensuring the sealing performance of the sensor 1.

[0067] As an optional embodiment, the housing 10 and the connector 80 may be fixed by riveting, which can ensure the sealing of the seal 60. At the same time, RTV glue may be applied around the riveting position to prevent external water vapor from entering the sensor 1 and damaging the pressure sensing element 50.

[0068] It should be noted that the connector 80, the pressure sensing component 50 and the support component 70 can form a detection unit, which can protect the pressure sensing component 50, prevent the pressure sensing component 50 from colliding with the housing 10, and effectively ensure the connection between the pressure sensing component 50 and the connector 80 to ensure that their communication function is normal. The temperature sensing component 20, the protective sleeve 30, and the seat body 43 can form a temperature sensing unit. The temperature sensing unit and the detection unit are sequentially placed inside the housing 10, which can reduce the installation steps of the process and improve production efficiency.

[0069] The thermal management system according to the embodiment of the present utility model includes the sensor 1 described above.

[0070] The vehicle according to the embodiment of the utility model comprises: the sensor 1 described in the above embodiment or the thermal management system described in the above embodiment.

[0071] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0072] In the description of the present utility model, "first feature" and "second feature" may include one or more of the features. In the description of the present utility model, "plurality" means two or more. In the description of the present utility model, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact not directly but through another feature between them. In the description of the present utility model, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0074] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A sensor (1), characterized in that: include: Housing (10); A temperature sensing element (20), wherein the temperature sensing element (20) is provided with a sensing portion (21), and the sensing portion (21) is used to sense the temperature of a medium; A protective sleeve (30), wherein the protective sleeve (30) is arranged inside the shell (10) and sleeved outside the temperature sensing component (20), and the protective sleeve (30) is provided with an extension portion (33), wherein the extension portion (33) is located outside the shell (10), and the sensing component (21) is arranged inside the extension portion (33), and the length of the extension portion (33) is a, and the value range of a is: a≤15 mm.

2. The sensor (1) according to claim 1, characterized in that 2.5mm≤a≤15mm.

3. The sensor (1) according to claim 1, characterized in that The distance between the sensing portion (21) and the end surface of the extending portion (33) away from the housing (10) is b, and the value range of b is: 0.5 mm ≤ b ≤ 2 mm.

4. The sensor (1) according to claim 3, characterized in that The end of the extension portion (33) away from the housing (10) is provided with a temperature measuring hole, and the temperature measuring hole is used for allowing the medium to contact the sensing portion (21).

5. The sensor (1) according to claim 4, characterized in that The temperature measuring hole comprises a first temperature measuring hole (34) and a second temperature measuring hole (35); the first temperature measuring hole (34) is arranged on an end surface of the extending portion (33) away from the shell (10); and the second temperature measuring hole (35) is arranged on a peripheral wall of the extending portion (33).

6. The sensor (1) according to claim 1, characterized in that The outer surface of the sensing portion (21) and the inner wall surface of the protective sleeve (30) are arranged at a distance.

7. The sensor (1) according to claim 1, characterized in that The housing (10) is provided with a step portion (11), and the protective sleeve (30) is further provided with a matching surface (32). In the axial direction of the housing (10), the matching surface (32) is limitedly matched with the surface of the step portion (11).

8. The sensor (1) according to any one of claims 1 to 7, characterized in that: The sensor (1) further comprises a temperature measuring element base (40), wherein the temperature measuring element base (40) is arranged in the housing (10), and the temperature sensing element (20) is connected to the temperature measuring element base (40).

9. The sensor (1) according to claim 8, characterized in that The temperature measuring element base (40) comprises a base body (43) and a conductive sheet (44) which are fixedly connected, and the conductive sheet (44) is provided with at least one welding position (45) for welding with the temperature sensing element (20).

10. The sensor (1) according to claim 9, characterized in that The seat body (43) comprises a seat plate (431) and a boss (432), wherein the boss (432) is arranged on the seat plate (431) and protrudes from the seat plate (431), and the seat body (43) is provided with a through hole (433), wherein the through hole (433) passes through the seat plate (431) and the boss (432); The conductive sheet (44) is suitable for being inserted into the through hole (433), the conductive sheet (44) has a conductive end, and the boss (432) is used to support the conductive end.

11. The sensor (1) according to claim 10, characterized in that The seat body (43) further comprises an outer ring plate (434), wherein the outer ring plate (434) is arranged around the seat plate (431), and the outer ring plate (434) and the seat plate (431) together enclose an open cavity, and the boss (432) is arranged in the cavity.

12. A thermal management system, characterized in that: include: The sensor (1) according to any one of claims 1 to 11.

13. A vehicle, characterized in that: include: The sensor (1) according to any one of claims 1 to 11 or the thermal management system according to claim 12.

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