Temperature measuring device and vehicle

By combining the heat-conducting shell and the gas state equation, and utilizing the pressure detection component and the conduction component, the problems of the small temperature measurement range and low accuracy of the NTC thermistor are solved, and temperature detection with a wider range and higher accuracy is achieved.

CN223412840UActive Publication Date: 2025-10-03VITESCO AUTOMOTIVE ELECTRONICS (CHANGCHUN) CO LTD
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Patent Information

Application Number
CN202422782483.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2025-10-03
Estimated Expiration
2034-11-14

AI Technical Summary

Technical Problem

Existing NTC thermistors have a small temperature measurement range and low temperature measurement accuracy, resulting in inaccurate temperature detection.

Method used

The temperature change of the external heat source is conducted to the gas containing cavity through the heat-conducting shell, and the gas pressure change is calculated using the ideal gas state equation PV=nRT to achieve accurate detection of the external heat source temperature. The pressure detection component and pressure conduction component are used to convert the gas pressure into a temperature signal.

Benefits of technology

A wider temperature detection range and higher measurement accuracy are achieved, the corresponding relationship between pressure value and temperature value is stable, and it is suitable for a wider range of temperature changes.

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Abstract

The utility model discloses a temperature measuring device and a vehicle, and the device comprises a heat conduction housing which comprises a cavity; the base is connected with the heat conduction shell, and the base and the heat conduction shell jointly limit the cavity to form a sealed gas containing cavity; the pressure detection assembly is arranged in the gas containing cavity and is arranged on the base; and the pressure conduction assembly is arranged on the base, the gas containing cavity covers the pressure conduction assembly, and the pressure conduction assembly covers the pressure detection assembly and is used for transmitting gas pressure in the gas containing cavity to the pressure detection assembly. According to the utility model, a pressure value of gas can be converted into a temperature value, so that a stable corresponding relation between the pressure value and the temperature value can be obtained, and the device has a wider temperature measurement range and good measurement precision.
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Description

Technical Field

[0001] The utility model relates to the field of temperature detection, in particular to a temperature measuring device and a vehicle. Background Art

[0002] A temperature sensor is a device that measures the temperature of an object by converting it into an electrical signal for measurement and control. In the automotive sector, temperature sensors monitor temperature changes in key components such as battery packs, motors, power systems, and electronic components to ensure they operate within safe ranges.

[0003] NTC (Negative Temperature Coefficient) thermistors are commonly used as temperature sensors for temperature measurement. NTC thermistors are a type of thermistor whose resistance decreases as temperature increases. They are typically made of ceramic materials, such as nickel, manganese, and cobalt oxides. The resistance of an NTC thermistor decreases as temperature increases. The resistance-temperature characteristic curve of an NTC thermistor is nonlinear, resulting in an unstable relationship between resistance and temperature. Temperature detection can only be performed within a narrow temperature range. Large fluctuations occur at low or high temperatures, resulting in inaccurate measurement results. Utility Model Content

[0004] The purpose of this utility model is to solve the technical problems of the limited temperature measurement range and low temperature measurement accuracy of NTC thermistors in the prior art. This utility model provides a temperature measurement device that can convert gas pressure values ​​into temperature values ​​to obtain a stable pressure-temperature correspondence, with a wider temperature measurement range and good measurement accuracy.

[0005] In order to solve the above technical problems, the embodiment of the present utility model discloses a temperature measuring device, comprising:

[0006] A heat-conducting housing, the heat-conducting housing comprising a cavity;

[0007] a base, the base being connected to the heat-conducting housing to define the cavity to form a sealed gas-containing cavity;

[0008] a pressure detection assembly, within the gas containing chamber, the pressure detection assembly being disposed on the base;

[0009] A pressure transmission component is provided on the base, the gas containing cavity covers the pressure detection component, and the pressure transmission component covers the pressure detection component, and is used to transmit the gas pressure in the gas containing cavity to the pressure detection component.

[0010] Using the above technical solution, according to the ideal gas state equation PV==nRT, where P is pressure (Pa), V is gas volume (m 3 ), T is temperature (K), n is the amount of substance of the gas (mol), and R is the molar gas constant (J / (mol.K)). In the International System of Units, R = 8.31J / (mol·K). When the volume V of the gas (the volume of the gas containing chamber) remains unchanged, since n and R are fixed values, it can be seen from P = nRT / V that as the temperature of the external heat source changes, the heat-conducting shell can conduct the temperature change of the external heat source to the gas containing chamber, so that the gas temperature in the gas containing chamber (corresponding to T in the formula) changes, and the pressure of the gas in the gas containing chamber (corresponding to P in the formula) will change accordingly. By detecting the pressure change value of the gas in the gas containing chamber, the temperature change value of the external heat source can be obtained, thereby realizing the detection of the temperature of the external heat source.

[0011] Specifically in the above technical solution, when the pressure in the cavity changes, the pressure conduction component is pressurized and the pressure conduction component can transmit the pressure it receives to the pressure detection component. The pressure detection component can calculate the temperature value of the corresponding gas under different pressure conditions according to the formula T=PV / nR, thereby realizing accurate measurement of the temperature of the external heat source. The temperature T is directly proportional to the pressure P, so the correspondence between the pressure value and the temperature value is stable. Even when the temperature is high or low, there will be no fluctuation. It has a wider temperature detection range and higher temperature detection accuracy.

[0012] According to another specific embodiment of the present invention, the embodiment of the present invention discloses a temperature measuring device, the base includes a first mounting groove, the first mounting groove is connected to the cavity and jointly defines the gas accommodating chamber, the first mounting groove includes a first bottom wall and a first side wall, the pressure detection component is arranged on the first bottom wall, and the pressure transmission component is arranged in contact with the first side wall.

[0013] With the above technical solution, the pressure detection assembly is located on the first bottom wall, and the pressure transmission assembly is arranged in contact with the first side wall. On the one hand, this can achieve sealing and protection of the pressure detection assembly. When the pressure in the gas-containing chamber changes, the pressure transmission assembly arranged in contact with the first side wall can be pressed and moved toward the pressure detection assembly, thereby evenly and stably transmitting the pressure to the pressure detection assembly, thereby improving the detection accuracy of the pressure detection assembly. On the other hand, when the pressure detection assembly is located on the first bottom wall, when the heat source is located at the top of the heat-conducting housing away from the base, since the pressure detection assembly is away from the heat source, the heat will be slowly transmitted to the pressure detection assembly. The pressure detection assembly is not easily damaged by excessively high heat source temperatures, and can therefore detect a higher temperature range.

[0014] According to another specific embodiment of the present invention, the embodiment of the present invention discloses a temperature measuring device, including an electrical connection part, which is connected to the base, the pressure detection component includes a pressure sensing part and a signal processing part, the pressure sensing part and the signal processing part are spaced apart on the first bottom wall, the pressure sensing part and the signal processing part are electrically connected, and the electrical connection part is electrically connected to the signal processing part for outputting a temperature signal.

[0015] By adopting the above technical solution, the pressure sensing part can be used to sense the pressure changes caused by the downward pressure of the pressure transmission component, and transmit the pressure changes into electrical signals to the signal processing part. The signal processing part converts the pressure into a temperature value according to the aforementioned ideal gas state equation, and then converts the temperature value into a corresponding electrical signal, and outputs the temperature signal through the electrical connection part. The pressure detection component includes an independent pressure sensing part and a signal processing part. For example, when the pressure sensing part fails, it only needs to replace a new pressure sensing part to continue normal operation, which can improve work efficiency.

[0016] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a temperature measuring device, wherein the heat-conducting housing includes:

[0017] a connecting plate connected to the first side wall;

[0018] a first portion, provided on the connecting plate, the first portion extending toward the first bottom wall;

[0019] The second part, the first part and the second part are arranged on both sides of the connecting plate, the second part extends toward the side away from the first bottom wall, the first part and the second part are both hollow and connected in sequence to form the cavity.

[0020] By adopting the above technical solution, the hollow first part and the second part are connected in sequence to form a cavity, and the first part extends toward the base, and the second part extends toward the side away from the base, so that the extension length of the first part and the second part can be designed according to actual needs. The change of the extension length of the first part and the second part will cause the volume of the cavity to change. A cavity with the required volume can be obtained at a lower cost, thereby better realizing the control of the production cost of the temperature measuring device.

[0021] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a temperature measuring device, wherein the second part includes a first sealing groove and a sealing ring, and the sealing ring is arranged in the first sealing groove.

[0022] The above technical solution can increase the scope of application of the temperature measuring device. For example, when it is necessary to detect the gas temperature in the pipeline, the sealing ring can abut against the inner wall of the pipeline to avoid gas leakage at the connection between the temperature measuring device and the pipeline.

[0023] According to another specific embodiment of the present invention, the embodiment of the present invention discloses a temperature measuring device, including a seal, which is arranged between the heat-conducting shell and the first side wall, the connecting plate abuts against the seal, and the first part is inserted into the seal.

[0024] With the above technical solution, the connecting plate of the heat-conducting housing abuts against the sealing member, ensuring that the heat-conducting housing and the base can form a gas-containing chamber with good sealing performance. At the same time, the first portion of the heat-conducting housing is inserted into the sealing member, which can not only improve the sealing performance of the heat-conducting housing and the base, but also make the connection between the heat-conducting housing and the base more stable.

[0025] According to another specific embodiment of the present invention, the embodiment of the present invention discloses a temperature measuring device, the base includes a second mounting groove, the sealing member is arranged in the second mounting groove, and the second mounting groove is arranged around the first mounting groove.

[0026] With the above technical solution, the base includes a first mounting groove and a second mounting groove, the second mounting groove is arranged around the first mounting groove, and the sealing member is arranged in the second mounting groove, which can improve the sealing performance between the heat-conducting housing and the base.

[0027] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a temperature measuring device, wherein the sealing member includes an inner wall and an outer wall arranged at intervals, and the inner wall and the outer wall jointly define a second sealing groove, the first part is arranged between the inner wall and the outer wall, the inner wall is fitted to the first side wall of the first mounting groove, and the outer wall is fitted to the second side wall of the second mounting groove.

[0028] By adopting the above technical solution, the first part of the heat-conducting shell is arranged between the inner wall and the outer wall, and the first part of the heat-conducting shell and the sealing member are both arranged in the second mounting groove, which can reduce the height of the temperature measuring device in the extension direction of the first part, and the inner wall is fitted to the first side wall of the first mounting groove, and the outer wall is fitted to the second side wall of the second mounting groove, which can further improve the sealing between the heat-conducting shell and the base.

[0029] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a temperature measuring device, wherein the pressure transmission component includes a potting compound, and the sealing member includes a sealant.

[0030] An embodiment of the present utility model further discloses a vehicle, which comprises at least the temperature measuring device in any one of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A three-dimensional schematic diagram of a temperature measuring device provided in an embodiment of the present application is shown.

[0032] Figure 2 A three-dimensional cross-sectional view of a temperature measuring device provided in an embodiment of the present application is shown.

[0033] Figure 3 An exploded view of a temperature measuring device provided in an embodiment of the present application is shown.

[0034] Figure 4 A three-dimensional schematic diagram of the heat-conducting housing of the temperature measuring device provided in an embodiment of the present application is shown.

[0035] Figure 5 A partially enlarged view of the base of the temperature measuring device provided in an embodiment of the present application is shown.

[0036] Figure 6 A three-dimensional schematic diagram of the pressure conduction component of the temperature measuring device provided in an embodiment of the present application is shown.

[0037] Figure 7 A color schematic diagram showing a sealing member of the temperature measuring device provided in an embodiment of the present application arranged on a base is shown.

[0038] Figure 8 A wireframe schematic diagram of a temperature measuring device provided in an embodiment of the present application in which a sealing member is arranged on a base is shown. DETAILED DESCRIPTION

[0039] The following is an explanation of the implementation of the present invention by means of specific specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide an in-depth understanding of the present invention, the following description will contain many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0040] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0041] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the utility model.

[0042] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0043] In the description of this embodiment, it should be noted that, unless otherwise specified or limited, the terms "disposed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this embodiment based on specific circumstances.

[0044] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0045] In some embodiments, the present application provides a vehicle including a temperature measuring device that can be used to monitor temperature changes in key components, such as the battery pack, motor, power system, and electronic components, to ensure they operate within a safe range. It is understood that the embodiments of the present application do not limit the application scenarios of the temperature measuring device.

[0046] In some embodiments, see Figure 1 、 Figure 2 The temperature measuring device includes a heat-conducting housing 10, a base 20, a pressure detection assembly 30, and a pressure conduction assembly 40. The heat-conducting housing 10 includes a cavity 101. The base 20 and the heat-conducting housing 10 are connected in a first direction X, and together define the cavity 101 to form a sealed gas-containing chamber 1011. In some embodiments, the base 20 also includes a mounting portion 23, which is connected to the base 20 or is integrally provided. The mounting portion 23 includes a connection hole 231 for fixing the temperature measuring device in different application scenarios using bolts, screws, and other connecting members.

[0047] For example, see Figure 2 、 Figure 3 、 Figure 4 Along the first direction X, the thermally conductive housing 10 includes a connecting plate 11, a first portion 12, and a second portion 13, wherein the connecting plate 11 abuts against the base 20, and the first portion 12 and the second portion 13 are arranged on both sides of the connecting plate 11 along the first direction X. The first portion 12 is a convex portion extending toward the base 20 along the first direction X, and the second portion 13 extends toward a side away from the base 20 along the first direction X. The first portion 12, the connecting plate 11, and the second portion 13 are all hollow and connected in sequence to form a cavity 101.

[0048] Illustratively, the second portion 13 includes a first sealing groove 131 and a sealing ring 132, with the sealing ring 132 disposed in the first sealing groove 131. Illustratively, the second portion 13 is cylindrical. This embodiment of the present application does not limit the shape of the second portion 13; for example, it may also be a rectangular parallelepiped. Furthermore, this application does not limit the length of the second portion 13 in the first direction X, nor does it limit the diameter or width of the second portion 13 in the second direction Y.

[0049] That is, this application does not limit the volume of cavity 101, and it can be designed according to actual needs. For example, it can be 3 to 4 cubic centimeters. In this case, due to the smaller volume of cavity 101, the temperature changes of the external heat source can be transferred to the gas within gas chamber 1011 more quickly, improving the accuracy of temperature measurement. It is understandable that when the heat source is located on the side of the thermally conductive housing 10 away from the base 20 along the first direction X, the length of the second portion 13 in the first direction X can also be increased to slow the speed of heat transfer to the pressure detection assembly 30 within the thermally conductive housing 10.

[0050] For example, the temperature measuring device provided in the embodiment of the present application can generally measure a temperature range of -40°C to 150°C. It can be understood that the embodiment of the present application does not limit this. The temperature measuring range of the temperature measuring device depends on the heat-resistant temperature of the heat-conducting shell 10 and the pressure detection component 30 and the pressure conduction component 40. For example, the heat-conducting shell 10 can be made of metal or plastic. Different materials have different tolerance temperatures, and the embodiment of the present application does not limit this.

[0051] In some embodiments, see Figure 2 、 Figure 3 In the gas containing chamber 1011, the pressure detection component 30 and the pressure transmission component 40 are both arranged on the base 20. Along the first direction X, the gas containing chamber 1011 covers the pressure transmission component 40, and the pressure transmission component 40 covers the pressure detection component 30, which is used to transmit the gas pressure in the gas containing chamber 1011 to the pressure detection component 30.

[0052] With the above technical solution, the base 20 is connected to the heat-conducting shell 10, and together they define the cavity 101 of the heat-conducting shell 10 to form a sealed gas containing chamber 1011. When the heat-conducting shell 10 exchanges heat with an external heat source, the heat-conducting shell 10 can transfer the temperature of the external heat source to the gas containing chamber 1011, and the temperature of the gas in the gas containing chamber 1011 changes accordingly. By detecting the temperature change of the gas in the gas containing chamber 1011, the temperature change of the external heat source can be obtained, thereby realizing the detection of the temperature of the external heat source. According to the ideal gas state equation PV==nRT, where P is the pressure (Pa) and V is the gas volume (m 3 ), T is the temperature (K), n is the amount of gas (mol), and R is the molar gas constant (J / (mol.K)). In the International System of Units, R = 8.31J / (mol·K). When the volume V of the gas (the volume of the gas containing chamber 1011) remains unchanged, n and R are fixed values. Therefore, according to the formula P = nRT / V, as the temperature T of the gas in the gas containing chamber 1011 changes, the pressure of the gas in the gas containing chamber 1011 will change accordingly.

[0053] Specifically in the above technical solution, when the pressure in the cavity 101 changes, the pressure conduction component 40 is pressurized and the pressure conduction component 40 can transmit the pressure it receives to the pressure detection component 30. The pressure detection component 30 can calculate the temperature value of the corresponding gas under different pressure conditions according to the formula T=PV / nR, thereby realizing accurate measurement of the temperature of the external heat source. The temperature T is directly proportional to the pressure P, so the correspondence between the pressure value and the temperature value is stable. Even when the temperature is higher or lower, there will be no fluctuation, and it has a wider temperature detection range and higher temperature detection accuracy.

[0054] In some embodiments, see Figure 2 、 Figure 3 、 Figure 5 The base 20 includes a first mounting groove 21 and a second mounting groove 22. The first mounting groove 21 is connected to the cavity 101 and together defines a gas containing cavity 1011. The first mounting groove 21 includes a first bottom wall 211 and a first side wall 212. The pressure detection component 30 is arranged on the first bottom wall 211, and the pressure transmission component 40 is arranged in contact with the first side wall 212.

[0055] In some embodiments, the pressure detection assembly 30 includes a pressure sensing unit 31 and a signal processing unit 32, which are electrically connected and spaced apart from each other on the first bottom wall 211. For example, the pressure sensing unit 31 includes a pressure sensor, and the signal processing unit 32 includes an ASIC signal processing module. ASIC (Application-specific integrated circuit) signal processing refers to the use of an ASIC chip to perform specific signal processing tasks.

[0056] In some embodiments, see Figure 2 、 Figure 3 、 Figure 5 The second mounting groove 22 is arranged around the first side wall 212. The second mounting groove 22 includes a second side wall 221 and a second bottom wall 222. The sealing member 60 is arranged in the second mounting groove 22 and is simultaneously arranged in contact with the second bottom wall 222 and the second side wall 221.

[0057] In some embodiments, see Figure 2 、 Figure 3 、 Figure 5 The temperature measuring device includes an electrical connection portion 50, which is connected to the base 20 and electrically connected to the signal processing unit 32 for outputting a temperature signal. Exemplarily, the electrical connection portion 50 is arranged parallel to the base 20 along the second direction Y to reduce space occupied in the first direction X and facilitate installation of the temperature measuring device. Exemplarily, the electrical connection portion 50 includes a socket 51, in which an output copper busbar 52 is disposed. The output copper busbar 52 is electrically connected to the signal processing unit 32.

[0058] In some embodiments, see Figure 2 、 Figure 3 、 Figure 6 Along the first direction X, the side of the pressure transmission component 40 close to the first bottom wall 211 includes a first accommodating groove 41 and a second accommodating groove 42 arranged at intervals, the pressure sensing part 31 is arranged in the first accommodating groove 41, and the signal processing part 32 is arranged in the second accommodating groove 42.

[0059] In some embodiments, see Figure 2 、 Figure 3 、 Figure 7The temperature measuring device includes a sealing member 60. Along the first direction X, the sealing member 60 is arranged between the heat-conducting housing 10 and the base 20. The connecting plate 11 is in contact with the sealing member 60. The first portion 12 is inserted into the sealing member 60. The sealing member 60 is arranged in the second mounting groove 22. Exemplarily, the pressure transmission component 40 includes a potting compound 401, and the sealing member 60 includes a sealant 601. The potting compound 401 can pot the pressure sensing unit 31 and the signal processing unit 32, and can play a role in sealing against water, moisture and dust, and improve the temperature resistance of the pressure sensing unit 31 and the signal processing unit 32. The sealant 601 can seal the gap between the heat-conducting housing 10 and the base 20, improve the sealing performance of the two, and form a sealed gas containing chamber 1011.

[0060] In some embodiments, see Figure 2 、 Figure 3 、 Figure 7 The sealing member 60 includes an inner sidewall 61 and an outer sidewall 62 that are spaced apart from each other. The inner sidewall 61 and the outer sidewall 62 together define a second sealing groove 63. The first portion 12 is disposed between the inner sidewall 61 and the outer sidewall 62. The inner sidewall 61 is fitted to the first sidewall 212 of the first mounting groove 21, and the outer sidewall 62 is fitted to the second sidewall 221 of the second mounting groove 22. By way of example, the second mounting groove 22 provided in the embodiment of the present application is disposed around the first mounting groove 21. The first mounting groove 21, the second mounting groove 22, and the second sealing groove 63 are all quadrilateral. It is understandable that the embodiment of the present application does not limit the shapes of the first mounting groove 21, the second mounting groove 22, and the second sealing groove 63. For example, they may also be circular.

[0061] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above description is provided to further illustrate the present invention in conjunction with specific embodiments, and that the present invention should not be construed as being limited to these descriptions. Those skilled in the art may make various changes in form and detail, including simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A temperature measuring device, characterized in that: include: A heat-conducting housing, the heat-conducting housing comprising a cavity; a base, the base being connected to the heat-conducting housing to define the cavity to form a sealed gas-containing cavity; a pressure detection assembly, within the gas containing chamber, the pressure detection assembly being disposed on the base; A pressure transmission component is provided on the base, the gas containing cavity covers the pressure transmission component, and the pressure transmission component covers the pressure detection component, and is used to transmit the gas pressure in the gas containing cavity to the pressure detection component.

2. The temperature measuring device according to claim 1, wherein The base includes a first mounting groove, which is connected to the cavity and jointly defines the gas containing cavity. The first mounting groove includes a first bottom wall and a first side wall. The pressure detection component is arranged on the first bottom wall, and the pressure transmission component is arranged in contact with the first side wall and the first bottom wall.

3. The temperature measuring device according to claim 2, characterized in that It includes an electrical connection part, which is connected to the base. The pressure detection component includes a pressure sensing part and a signal processing part. The pressure sensing part and the signal processing part are spaced apart on the first bottom wall. The pressure sensing part and the signal processing part are electrically connected. The electrical connection part is electrically connected to the signal processing part for outputting a temperature signal.

4. The temperature measuring device according to claim 2, characterized in that The heat-conducting housing comprises: a connecting plate connected to the first side wall; a first portion, provided on the connecting plate, the first portion extending toward the first bottom wall; The second part, the first part and the second part are arranged on both sides of the connecting plate, the second part extends toward the side of the connecting plate away from the first bottom wall, the first part and the second part are both hollow and connected in sequence to form the cavity.

5. The temperature measuring device according to claim 4, characterized in that The second part includes a first sealing groove and a sealing ring, and the sealing ring is arranged in the first sealing groove.

6. The temperature measuring device according to claim 4, characterized in that A sealing member is included, wherein the sealing member is arranged between the heat-conducting housing and the first side wall, the connecting plate abuts against the sealing member, and the first part is inserted into the sealing member.

7. The temperature measuring device according to claim 6, characterized in that The base includes a second mounting groove, the sealing member is arranged in the second mounting groove, and the second mounting groove is arranged around the first mounting groove.

8. The temperature measuring device according to claim 7, characterized in that The sealing member includes an inner side wall and an outer side wall spaced apart from each other, the inner side wall and the outer side wall together defining a second sealing groove, the first part being arranged between the inner side wall and the outer side wall, the inner side wall being fitted to the first side wall of the first mounting groove, and the outer side wall being fitted to the second side wall of the second mounting groove.

9. The temperature measuring device according to claim 6, characterized in that: The pressure transmission component includes a potting compound, and the sealing element includes a sealant.

10. A vehicle, characterized in that: The device comprises a temperature measuring device as described in any one of claims 1 to 9.