Temperature detection device

Abstract

The utility model provides a temperature detection device. The temperature detection device comprises a heat conduction assembly and a fixing assembly. The heat conduction assembly comprises a contact part, a first shielding piece and a temperature sensing assembly. A contact surface is arranged on the side, back on to the first shielding piece, of the contact part, at least part of the first shielding piece is arranged between the temperature sensing assembly and the contact surface, and the first shielding piece and the temperature sensing assembly are arranged in a mutually insulated mode. The fixing assembly comprises a containing space, at least part of the second shielding piece is arranged in the containing space, part of the heat conduction assembly is contained in the containing space, at least part of the contact face extends out of the containing space, a shielding space is formed between the first shielding piece and the second shielding piece, and the first shielding piece and the second shielding piece are both connected to an external grounding signal end. The temperature sensing assembly is arranged in the shielding space. The anti-electromagnetic interference performance of the temperature detection device can be improved.

Description

Technical Field

[0001] This application relates to the field of temperature sensor technology, and more particularly to a temperature detection device. Background Technology

[0002] Temperature sensing devices are instruments used to measure and monitor changes in temperature. They have wide applications in various fields, including industrial manufacturing, healthcare, environmental protection, and smart homes. The development of temperature sensors has evolved from simple mechanical devices to highly integrated electronic devices, continuously driving technological progress and application innovation.

[0003] In the development of temperature detection device technology, how to improve the anti-electromagnetic interference performance of temperature detection devices has always been a research direction in temperature detection device technology. Utility Model Content

[0004] In view of the above problems, this application provides a temperature detection device that can improve the electromagnetic interference resistance of the temperature detection device.

[0005] In a first aspect, this application provides a temperature detection device, which includes a heat-conducting component and a fixing component. The heat-conducting component includes a contact portion, a first shield, and a temperature sensing component. The contact portion has a contact surface on its side facing away from the first shield. At least a portion of the first shield is disposed between the temperature sensing component and the contact surface, and the first shield and the temperature sensing component are insulated from each other. The fixing component includes a receiving space, within which at least a portion of a second shield is disposed. A portion of the heat-conducting component is received within the receiving space, and at least a portion of the contact surface extends from the receiving space. A shielding space is formed between the first shield and the second shield. Both the first shield and the second shield are connected to an external grounding signal terminal, and the temperature sensing component is disposed within the shielding space.

[0006] In the above scheme, the temperature sensing component is placed in a shielded space. The first shield can shield the heat transfer path between the device under test and the temperature sensing component, thereby reducing the possibility that the electromagnetic interference signal generated by the device under test will affect the temperature sensing component. The shielded space formed by the first shield and the second shield can also shield electromagnetic interference signals in the environment, thereby reducing the possibility that electromagnetic interference signals in the environment will affect the temperature sensing component, improving the anti-electromagnetic performance of the temperature detection device, improving the detection accuracy of the temperature detection device, and reducing the possibility that electromagnetic interference signals will affect electronic equipment.

[0007] In some embodiments, the temperature sensing component includes a temperature sensing element and an output line connected together, the fixed component includes an output terminal, the output line is electrically connected to the output terminal, and the output terminal is used to be electrically connected to an external output wiring harness.

[0008] In the above scheme, the above settings help to reduce the possibility of electromagnetic interference signals in the environment affecting the output line, thereby reducing the possibility of the output line generating an antenna effect, improving the electromagnetic resistance of the temperature detection device, and improving the detection accuracy of the temperature detection device.

[0009] In some embodiments, the first shield and the second shield are electrically connected by a conductive connector, and the second shield is electrically connected to an external grounding signal terminal.

[0010] In the above solution, by setting conductive connectors, the connection lines between the shield and the external grounding signal terminal are simplified, the structure of the temperature detection device is simplified, and the manufacturing cost is reduced.

[0011] In some embodiments, the conductive connector includes one of a conductive seal and a conductive elastic element.

[0012] In the above scheme, when the conductive connector is a conductive seal, the possibility of liquids, impurities and other substances in the external environment entering and corroding the temperature sensing component can be reduced, thereby improving the applicability of the temperature detection device. When the conductive connector is a conductive elastic component, the first shield can compress the conductive elastic component, causing the contact part and the first shield to move away from the device under test. This reduces the possibility of stress concentration between the contact part and the device under test due to vibration or external impact, thereby reducing the possibility of deformation in the contact area between the contact part and the device under test and improving the service life of the temperature detection device.

[0013] In some embodiments, the second shielding member includes a shielding body and a connecting portion connected together, the connecting portion extending to the outside of the fixing component and used for electrical connection with an external grounding signal terminal, and the shielding body being disposed within the receiving space.

[0014] In the above scheme, by setting a connecting part to simplify the overall structure of the second shielding component and the connection structure between the second shielding component and the grounding signal terminal, the manufacturing cost of the second shielding component is reduced.

[0015] In some embodiments, the temperature sensing device further includes fasteners for connecting the fixing component to an external device.

[0016] In the above scheme, fasteners are used to reduce the connection difficulty between the fixed component and the external device. The fixed component is fixed by fasteners to ensure the relative position of the heat conduction component and the device under test, thereby reducing the possibility of relative displacement between the heat conduction component and the device under test under external impact or vibration, and improving the detection accuracy of the temperature detection device.

[0017] In some embodiments, the temperature detection device further includes a fastener, and the connection portion is electrically connected to an external grounding signal terminal via the fastener.

[0018] In the above scheme, the fasteners simultaneously achieve the functions of mechanical fixing and electrical grounding through the above settings, thereby simplifying the overall structure of the temperature detection device, enabling multiple functions to be performed at the same location on the temperature detection device, saving the layout space on the temperature detection device, reducing the overall volume of the temperature detection device, simplifying the installation steps, and reducing the assembly time.

[0019] In some embodiments, the first shielding member and the second shielding member are electrically connected by a conductive connector. The first shielding member includes a first shielding portion, a second shielding portion, and an electrical connection portion connected to each other. The first shielding portion is located on the side of the temperature sensing component facing away from the shielding body, the second shielding portion is located between the first shielding portion and the shielding body and on the periphery of the temperature sensing component, and the conductive connector is located between the electrical connection portion and the shielding body.

[0020] In the above scheme, the conductive connector can electrically connect the electrical connection part to the shielding body, thereby connecting the first shielding part and the second shielding part, which simplifies the overall structure of the first shielding part. Furthermore, the first shielding part can shield the heat conduction path between the contact surface and the temperature sensing component, reducing the possibility that electromagnetic interference signals emitted by the device under test will affect the temperature sensing component through the heat conduction path; the second shielding part can reduce the possibility that signals from the external environment will affect the temperature sensing component through the periphery of the temperature sensing component, further improving the electromagnetic insufficiency of the temperature detection device and increasing its detection accuracy.

[0021] In some embodiments, the fixing component includes a first fixing member and a second fixing member, which together form an accommodating space. The first fixing member and the second fixing member are arranged sequentially along a first direction. A portion of the heat-conducting component is located between the first fixing member and the second fixing member, and the second fixing member has an opening, with at least a portion of the contact surface extending out from the opening.

[0022] In the above scheme, by setting a first fixing component and a second fixing component, it is beneficial to reduce the difficulty of manufacturing the fixing component and the assembly difficulty of the heat conduction component and the fixing component, thereby reducing the manufacturing cost of the first fixing component and the second fixing component.

[0023] In some embodiments, at least a portion of the second shield is disposed on the first fixing member to reduce the possibility that the second shield will move under external load due to separation of the second shield and the first fixing member, thereby improving the shielding performance of the second shield and the impact resistance of the temperature detection device.

[0024] In some embodiments, the first fastener is made of an insulating material, and at least a portion of the second shield is embedded within the first fastener.

[0025] In the above solution, by setting the first fixing member as an insulating material, the possibility of short circuit between the temperature detection device and other circuits caused by the first fixing member contacting other conductive structures can be reduced. At the same time, the manufacturing difficulty of the first fixing member and the second shielding member can be reduced, and the manufacturing cost of the temperature detection device can be reduced.

[0026] In some embodiments, the first fastener is made of a conductive material, and the first fastener forms a second shielding element in at least a portion of the accommodating space.

[0027] In the above scheme, at least a portion of the first fixing member forms the second shielding member, so that the first fixing member has the functions of fixing and shielding signals, thereby simplifying the overall structure of the fixing component and reducing the manufacturing cost of the temperature detection device.

[0028] In some embodiments, the fixing component includes an output end, the first fixing member has an output channel, the output end passes through the output channel, and an insulating layer is provided between the output end and the output channel.

[0029] In the above scheme, when the first fixing member is made of conductive material, the output terminal set on the first fixing member needs to be insulated from the first fixing member in order to reduce the possibility that the temperature signal output from the output terminal and the grounding signal on the first fixing member interfere with each other or even cause the temperature signal output from the output terminal to be exported through the first fixing member, thereby reducing the possibility of the temperature detection device malfunctioning.

[0030] In some embodiments, the thermally conductive component is movable relative to the first and / or second fixing member.

[0031] In the above scheme, the above settings help to reduce the squeezing pressure of the tested device on the heat-conducting component under external force, thereby reducing the possibility of the heat-conducting component being squeezed and deformed, and improving the service life of the heat-conducting component.

[0032] In some embodiments, the contact material is a thermally conductive and insulating material, which reduces the possibility of short circuit between the device under test and the external grounding signal terminal while conducting temperature through the contact, thereby improving the detection accuracy and reliability of the temperature detection device.

[0033] In some embodiments, a portion of the first shield is embedded within the contact portion, and the temperature sensing component and the first shield are insulated from each other through the contact portion.

[0034] In the above scheme, the above settings help to simplify the manufacturing process of the contact part and the first shield, reduce the manufacturing cost of the heat conduction component, and at the same time reduce the possibility of electrical contact between the first shield and the temperature sensing component, thereby improving the reliability of the temperature detection device.

[0035] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0036] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a cross-sectional structural schematic diagram of a temperature detection device provided in an embodiment of this application;

[0038] Figure 2 This is an exploded structural diagram of a temperature detection device provided in an embodiment of this application;

[0039] Figure 3 This is a cross-sectional structural schematic diagram of another temperature detection device provided in the embodiments of this application;

[0040] Figure 4 This is a cross-sectional structural schematic diagram of another temperature detection device provided in the embodiments of this application;

[0041] Figure 5 This is an exploded structural diagram of another temperature detection device provided in the embodiments of this application;

[0042] Figure 6 This is a cross-sectional structural schematic diagram of another temperature detection device provided in the embodiments of this application.

[0043] Marker description

[0044] 1. Device under test; 2. Housing; 3. External signal harness; 4. Adhesive material; 5. Sealing ring; 6. Insulation layer;

[0045] 10. Contact portion; 11. Contact surface; 12. First contact body; 13. Second extension portion;

[0046] 20. First shielding component; 21. First shielding part; 22. Second shielding part; 23. Electrical connection part;

[0047] 30. Temperature sensing component; 31. Temperature sensing element; 32. Output line;

[0048] 40. Second shielding component; 41. Shielding body; 42. Connecting part; 421. First sub-connecting part; 422. Second sub-connecting part;

[0049] 50. Conductive connectors;

[0050] 60. Fasteners;

[0051] 70. First fastener; 71. First fastening body; 72. First extension;

[0052] 80. Second fastener; 81. First sub-part; 82. Second sub-part;

[0053] 90. Output terminal;

[0054] E1, containment space; E2, shielding space; K1, opening; K2, output channel;

[0055] G1, first groove; G2, second groove;

[0056] X, the first direction. Detailed Implementation

[0057] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0058] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0059] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0060] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0061] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0062] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0063] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0064] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0065] Almost all industrial, consumer, and automotive power supply equipment today uses switching power supplies. Switching power supplies utilize high-frequency chopping combined with sophisticated control methods to generate the voltage or current required by electrical appliances. They possess extremely high conversion efficiency, are relatively small and lightweight, and can implement many intelligent functions. However, high-frequency chopping results in rapid voltage and current pulses; these pulses generate electromagnetic interference signals.

[0066] Temperature sensing devices include thermocouples, resistance temperature detectors (RTDs), and thermistors, among others. Thermocouples are widely used in many fields due to their advantages such as wide measurement range, high temperature resistance, simple structure, fast response, and low cost. A thermocouple is a non-linear resistor affected by temperature; its body needs to be in close contact with the device being measured, and its two leads are connected to the control circuit via leads. Often, the distance between the device being measured and the control circuit is relatively far, resulting in a relatively long lead length.

[0067] When thermocouples are placed in environments with strong electromagnetic interference (such as inside power supply equipment enclosures) or even close to interference sources (such as inverter switching transistors or high-power conductive copper busbars), the long leads can cause a significant antenna effect, introducing electromagnetic interference signals into the control circuit and transmitting them to other devices, leading to problems such as electronic equipment malfunctions, detection errors, and failure to pass electromagnetic compatibility (EMC) tests.

[0068] To address the aforementioned technical issues, this application provides a technical solution that places the temperature sensing component within a shielded space to reduce the impact of electromagnetic interference on the temperature sensing component, thereby improving the electromagnetic resistance of the temperature detection device, enhancing the detection accuracy of the temperature detection device, and ultimately reducing the impact of electromagnetic interference signals on electronic equipment.

[0069] Figure 1 This is a cross-sectional structural diagram of a temperature detection device provided in an embodiment of this application. Figure 2 This is an exploded structural diagram of a temperature detection device provided in an embodiment of this application.

[0070] Please see Figure 1 and Figure 2 This application provides a temperature detection device, which includes a heat-conducting component and a fixing component. The heat-conducting component includes a contact portion 10, a first shield 20, and a temperature sensing component 30. The contact portion 10 has a contact surface 11 on the side facing away from the first shield 20. At least a portion of the first shield 20 is disposed between the temperature sensing component 30 and the contact surface 11, and the first shield 20 and the temperature sensing component 30 are insulated from each other. The fixing component includes a receiving space E1, in which at least a portion of a second shield 40 is disposed. A portion of the heat-conducting component is accommodated in the receiving space E1, and at least a portion of the contact surface 11 extends out of the receiving space E1. A shielding space E2 is formed between the first shield 20 and the second shield 40. Both the first shield 20 and the second shield 40 are connected to an external ground signal terminal, and the temperature sensing component 30 is disposed within the shielding space E2.

[0071] The temperature detection device includes a heat-conducting component and a fixing component. The heat-conducting component is used to contact the device under test 1 and detect the temperature of the device under test 1. The fixing component is used to fix the heat-conducting component.

[0072] For example, at least a portion of the contact surface 11 of the thermally conductive component is in contact with the device under test 1 to detect the temperature of the device under test 1. Of course, the contact surface 11 and the device under test 1 may also be spaced apart.

[0073] For example, the fixing component can be fixed to the device under test 1. Of course, the fixing component can also be fixed to other structures.

[0074] Optionally, the contact portion 10 may be cylindrical, frustum-shaped, spherical, cuboid, or other shapes.

[0075] Optionally, the contact surface 11 can be circular, square, rectangular or other shapes.

[0076] Optionally, the material of the first shield 20 can be a conductive material, such as a metal.

[0077] Optionally, the first shielding member 20 may be located on the side of the contact portion 10 facing away from the contact surface 11. For example, the side of the contact portion 10 facing away from the contact surface 11 is the non-contact surface 11, and the first shielding member 20 is disposed in contact with the non-contact surface 11. Alternatively, the first shielding member 20 may be located within the contact portion 10. Optionally, the material of the contact portion 10 may be an insulating material to reduce the risk of interference from the shielded signal to the device under test (DUT) caused by the electrical connection between the contact portion 10 and the DUT.

[0078] Optionally, the entire structure of the first shield 20 is located between the temperature sensing component 30 and the contact surface 11. For example, the first shield 20 is flat. Alternatively, a portion of the first shield 20 is located between the temperature sensing component 30 and the contact surface 11. For example, the first shield 20 is a thin-walled cuboid with an opening K1, and at least a portion of the temperature sensing component 30 is located within the cuboid.

[0079] The first shield 20 and the temperature sensing component 30 are insulated from each other, thereby reducing the possibility of the shielding signal in the first shield 20 interfering with temperature detection. Optionally, an insulating material may be provided between the first shield 20 and the temperature sensing component 30.

[0080] For example, a portion of the heat-conducting component is located within the receiving space E1, and a portion of the contact portion 10 extends from the receiving space E1 to the outside so that at least a portion of the contact surface 11 extends to the outside so that the contact surface 11 contacts the device under test 1.

[0081] Optionally, the material of the second shield 40 can be a conductive material, such as a metal. Optionally, the material of the first shield 20 and the material of the second shield 40 are the same.

[0082] Optionally, a portion of the second shield 40 is located within the receiving space E1, or the entire structure of the second shield 40 is located within the receiving space E1.

[0083] Optionally, the second shield 40 is located on the side of the temperature sensing assembly 30 facing away from the first shield 20. Alternatively, the second shield 40 is located between the side of the temperature sensing assembly 30 facing away from the first shield 20 and the side of the temperature sensing assembly 30 facing the first shield 20.

[0084] For example, the second shield 40 may be flat, and the second shield 40 and the first shield 20 together form a cylindrical, cuboid, frustum or other shape.

[0085] Optionally, the first shield 20 and the second shield 40 may be electrically connected. Alternatively, the first shield 20 and the second shield 40 may be mutually insulated.

[0086] Optionally, the first shield 20 is connected to an external grounding signal terminal so that the first shield 20 can shield electromagnetic interference.

[0087] Optionally, the second shield 40 is connected to an external grounding signal terminal so that the second shield 40 can shield electromagnetic interference.

[0088] It is understood that the temperature sensing component 30 is located in the shielded space E2, and the external output line bundle 32 is electrically connected to the temperature sensing component 30 to transmit the temperature signal in the temperature sensing component 30 to the control circuit. For example, the second shield 40 is provided with an output channel K2, and the temperature sensing component 30 and the external output line bundle 32 are electrically connected through the output channel K2.

[0089] Optionally, the heat-conducting component is located within the receiving space E1. The heat-conducting component can be fixed within the receiving space E1, or it can be movably installed within the receiving space E1.

[0090] In this embodiment, the temperature sensing component 30 is disposed within the shielding space E2. The first shield 20 can shield the heat transfer path between the device under test 1 and the temperature sensing component 30, thereby reducing the possibility that the electromagnetic interference signal generated by the device under test 1 will affect the temperature sensing component 30. The shielding space E2 formed by the first shield 20 and the second shield 40 can also shield electromagnetic interference signals in the environment, thereby reducing the possibility that electromagnetic interference signals in the environment will affect the temperature sensing component 30, improving the anti-electromagnetic performance of the temperature detection device, improving the detection accuracy of the temperature detection device, and reducing the possibility that electromagnetic interference signals will affect the electronic equipment.

[0091] In some alternative embodiments, please refer to Figure 1 and Figure 2 The temperature sensing component 30 includes a temperature sensing element 31 and an output line 32 connected together. The fixed component includes an output end 90. The output line 32 is electrically connected to the output end 90. The output end 90 is used to electrically connect to the external output line 32.

[0092] Optionally, the temperature sensing element 31 includes a thermocouple, a resistance temperature detector (RTD), a thermistor, and other temperature sensing elements 31.

[0093] Optionally, the output line 32 can transmit the temperature signal from the temperature sensor 31 to the outside. For example, the temperature signal from the temperature sensor 31 is transmitted to the external output line 32 via the output line 32 and the output terminal 90, and the external output line 32 then transmits the temperature signal to the corresponding control circuit.

[0094] Alternatively, output terminal 90 can be a pin.

[0095] Optionally, the number of output lines 32 can be two.

[0096] In this embodiment of the application, the above-mentioned settings help to reduce the possibility of electromagnetic interference signals in the environment affecting the output line 32, thereby reducing the possibility of the output line 32 generating an antenna effect, improving the electromagnetic resistance of the temperature detection device, and improving the detection accuracy of the temperature detection device.

[0097] In some alternative embodiments, please refer to Figure 1 and Figure 2 The first shield 20 and the second shield 40 are electrically connected by a conductive connector 50, and the second shield 40 is electrically connected to an external grounding signal terminal.

[0098] For example, the first shield 20, the second shield 40, and the conductive connector 50 together form the shielding space E2.

[0099] Optionally, the conductive connector 50 can be a separate component; or, the conductive connector 50 can be an integral structure with the first shield 20; or, the conductive connector 50 can be an integral structure with the second shield 40.

[0100] Optionally, the conductive connector 50 can be a ring-shaped structure.

[0101] Optionally, the number of conductive connectors 50 can be one or more.

[0102] In this embodiment, by providing the conductive connector 50, the connection line between the shield and the external grounding signal terminal is simplified, the structure of the temperature detection device is simplified, and the manufacturing cost is reduced.

[0103] Figure 3 This is a cross-sectional structural schematic diagram of another temperature detection device provided in the embodiments of this application.

[0104] In some alternative embodiments, please refer to Figures 1 to 3 The conductive connector 50 includes one of a conductive seal and a conductive elastic element.

[0105] Optionally, the conductive seal can be a conductive sealing ring 5.

[0106] Alternatively, the conductive elastic element can be a spring.

[0107] In this embodiment, when the conductive connector 50 is a conductive seal, the possibility of liquids, impurities, and other substances in the external environment entering and corroding the temperature sensing component 30 can be reduced, thereby improving the applicability of the temperature detection device. When the conductive connector is a conductive elastic component, the first shield 21 can compress the conductive elastic component, causing the contact portion 10 and the first shield 20 to move away from the device under test 1, thereby reducing the possibility of stress concentration between the contact portion 10 and the device under test 1 due to vibration or external impact, and further reducing the possibility of deformation in the contact area between the contact portion 10 and the device under test 1, thus improving the service life of the temperature detection device.

[0108] In some alternative embodiments, please refer to Figures 1 to 3 The second shield 40 includes a shield body 41 and a connecting portion connected to each other. The connecting portion extends to the outside of the fixing component and is used for electrical connection with an external grounding signal terminal. The shield body 41 is disposed within the accommodating space E1.

[0109] Optionally, at least a portion of the connecting portion 42 is located on the side of the shielding body 41 facing away from the contact portion 10.

[0110] Exemplarily, the connecting portion 42 includes a first sub-connecting portion 421 and a second sub-connecting portion 422. The first sub-connecting portion 421 is connected to the shielding body 41 via the second sub-connecting portion 422. The second sub-connecting portion 422 is bent relative to the first sub-connecting portion 421 and also bent relative to the shielding body 41. Optionally, one end of the second sub-connecting portion 422 is connected to the shielding body 41, and the other end of the second sub-connecting portion 422 is connected to the first sub-connecting portion 421. The second sub-connecting portion 422 extends in a direction away from the contact portion 10. Optionally, the first sub-connecting portion 421 is located on the side of the second sub-connecting portion 422 facing away from the shielding body 41.

[0111] Optionally, a shielding space E2 is formed between the shielding body 41 and the first shielding member 20.

[0112] Optionally, the first sub-connection 421 extends to the outside of the fixing component. Here, "outside of the fixing component" refers to the side that is not covered by the fixing component and is exposed to the external space.

[0113] Optionally, the first sub-connector 421 may be annular, for example, circular, square, or the like.

[0114] In this embodiment of the application, by providing the connecting part 42, the overall structure of the second shield 40 is simplified, the connection structure between the second shield 40 and the ground signal terminal is simplified, thereby reducing the manufacturing cost of the second shield 40.

[0115] In some alternative embodiments, please refer to Figures 1 to 3 The temperature detection device also includes fasteners for connecting the fixing components to external devices.

[0116] Optionally, fastener 60 includes bolts, screws, rivets, pins, etc.

[0117] Optionally, the external device may include a housing and the device under test 1 located inside the housing, and fasteners 60 connect the housing 2 and the fixing components.

[0118] Optionally, the number of fasteners 60 may include one or more.

[0119] Optionally, the fastener 60 is detachably connected to the fixing component.

[0120] In this embodiment of the application, fasteners 60 are provided to reduce the difficulty of connecting the fixing component and the external device. The fixing component is fixed by fasteners 60 to ensure the relative position of the heat-conducting component and the device under test 1, thereby reducing the possibility of relative displacement between the heat-conducting component and the device under test 1 under the action of external impact or vibration, and improving the detection accuracy of the temperature detection device.

[0121] In other examples, fastener 60 can be used to connect a fixed component to other structures.

[0122] In some alternative embodiments, please refer to Figures 1 to 3 The temperature detection device also includes a fastener 60, and the connecting part 42 is electrically connected to an external grounding signal terminal through the fastener 60.

[0123] Optionally, the fixing component may be provided with a connection hole, the connection hole exposing a portion of the connection part 42, the fastener 60 passing through the connection hole, and the fastener 60 contacting the connection part 42 to achieve an electrical connection.

[0124] Optionally, the external device may include a housing and a device under test 1 located inside the housing. The housing 2 may be electrically connected to an external grounding signal terminal. The fastener 60 may electrically connect the housing 2 and the connecting part 42 so that the second shielding part 22 and the housing 2 are electrically connected.

[0125] In this embodiment of the application, the fastener 60 achieves both mechanical fixing and electrical grounding functions through the above-mentioned settings, thereby simplifying the overall structure of the temperature detection device, enabling multiple functions to be realized at the same location on the temperature detection device, saving the layout space on the temperature detection device, reducing the overall volume of the temperature detection device, simplifying the installation steps, and reducing the assembly time.

[0126] In some alternative embodiments, please refer to Figures 1 to 3The first shielding member 20 and the second shielding member 40 are electrically connected by a conductive connector 50. The first shielding member 20 includes a first shielding part 21, a second shielding part 22, and an electrical connection part 23 connected to each other. The first shielding part 21 is located on the side of the temperature sensing component 30 away from the shielding body 41. The second shielding part 22 is located between the first shielding part 21 and the shielding body 41 and is located on the periphery of the temperature sensing component 30. The conductive connector 50 is located between the electrical connection part 23 and the shielding body 41.

[0127] Optionally, the first shielding part 21 and the shielding body 41 are arranged opposite each other along the first direction X.

[0128] Optionally, the projection of the first shielding part 21 along the first direction X is located within the projection of the shielding body 41 along the first direction X.

[0129] Optionally, the electrical connection portion 23 and the shielding body 41 are arranged opposite each other along the first direction X.

[0130] Optionally, the projection of the electrical connection portion 23 along the first direction X is located within the projection of the shielding portion along the first direction X.

[0131] Optionally, the first direction X can be the direction in which the contact surface 11 and the temperature sensing component 30 are arranged side by side.

[0132] Optionally, the projection of the second shield 22 along the first direction X surrounds the temperature sensing component 30.

[0133] Optionally, the first sub-connection portion 421 and the shielding body 41 are spaced apart along the first direction X.

[0134] In this embodiment, the conductive connector 50 can electrically connect the electrical connection portion 23 to the shielding body 41, thereby connecting the first shielding portion 21 and the second shielding portion 22, thus simplifying the overall structure of the first shielding component 20. Furthermore, the first shielding portion 21 can shield the heat conduction path between the contact surface 11 and the temperature sensing component 30, reducing the possibility that electromagnetic interference signals emitted by the device under test 1 will affect the temperature sensing component 30 through the heat conduction path; the second shielding portion 22 can reduce the possibility that signals from the external environment will affect the temperature sensing component 30 from its periphery, further improving the electromagnetic insufficiency of the temperature detection device and increasing its detection accuracy.

[0135] In some alternative embodiments, please refer to Figures 1 to 3The fixing component includes a first fixing member 70 and a second fixing member 80. The first fixing member 70 and the second fixing member 80 enclose a receiving space E1. The first fixing member 70 and the second fixing member 80 are arranged sequentially along the first direction X. A part of the heat-conducting component is located between the first fixing member 70 and the second fixing member, and the second fixing member is provided with an opening K1, at least part of the contact surface 11 protruding from the opening K1.

[0136] Optionally, the first fixing member 70 and the second fixing member 80 can be detachably connected; of course, the first fixing member 70 and the second fixing member 80 can also be fixedly connected.

[0137] Optionally, the first fastener 70 may have a first fastening body 71 and a first extension 72, the first extension being located around the periphery of the first fastening body 71, and the thickness of the first extension 72 being less than the thickness of the first fastening body 71. The second fastener 80 may include a first sub-part 81 and a second sub-part 82, the first sub-part 81 being disposed opposite to the first fastening body 71 along a first direction X, and the second sub-part 82 being located around the periphery of the first fastening body 71. Optionally, the second sub-part 82 and the first fastening body 71 may be fixedly connected by an interference fit, a bolt connection, or other means. Optionally, the first extension 72 extends in a direction away from the first fastening body 71. Optionally, the surface of the first fastening body 71 facing the heat-conducting component protrudes from the surface of the first extension 72 facing the heat-conducting component.

[0138] Optionally, the conductive connector 50 may be located between the first sub-part 81 and the first fixing body 71.

[0139] Optionally, the first electrical extension 72 is located between the first sub-part 81 and the first fixed body 71.

[0140] Optionally, the second fastener 80 can be a sealing ring 5.

[0141] Optionally, the first sub-part 81 encloses to form an opening K1, and an accommodating space E1 is formed between the first sub-part 81 and the first fixed body 71, and the opening K1 connects the accommodating space E1 and the external environment.

[0142] Optionally, the first extension 72 of the first fixing member 70 can be used for fixed connection to an external device. For example, the first extension 72 has a connection hole, and the housing of the external device has a connection socket. The housing can accommodate liquid cooling material and the device under test. Placing the device under test in an environment with liquid cooling material can reduce the operating temperature of the device under test 1. The heat-conducting component, the second fixing member 80, and the first fixing body 71 enter the housing 2 through the connection socket, and the heat-conducting component contacts the device under test 1. The first extension 72 can be located outside the housing and connected to the housing to fix the first fixing member 70 to the housing 2. Optionally, a sealing ring 5 can be provided between the first extension 72 and the housing 2 to reduce the possibility of liquid overflowing from the housing 2 through the connection socket.

[0143] A portion of the contact portion 10 extends from the opening K1 to the outside of the receiving space E1, so that at least a portion of the contact surface 11 extends from the opening K1 to the outer environment.

[0144] In some examples, the first fixing member 70 may have a first groove G1, which is formed by a recess on one side surface of the first fixing body 71 opposite to the heat-conducting assembly. A through hole is formed on the bottom wall of the groove, and the output end 90 is disposed within the through hole. The groove can accommodate at least a portion of the external signal harness 3. Optionally, an adhesive material 4 may be provided within the groove to fix the external signal harness 3 and fill the gap in the through hole. Optionally, the adhesive material 4 may be an insulating adhesive.

[0145] In this embodiment of the application, by setting the first fixing member 70 and the second fixing member 80, it is beneficial to reduce the difficulty of manufacturing the fixing component and the assembly difficulty of the heat conduction component and the fixing component, thereby reducing the manufacturing cost of the first fixing member 70 and the second fixing member 80.

[0146] Figure 4 This is a cross-sectional structural schematic diagram of another temperature detection device provided in the embodiments of this application.

[0147] In some alternative embodiments, please refer to Figures 1 to 4 At least a portion of the second shield 40 is disposed on the first fixing member 70 to reduce the possibility that the second shield 40 may move under external load due to the separation of the second shield 40 and the first fixing member 70, thereby improving the shielding performance of the second shield 40 and improving the impact resistance of the temperature detection device.

[0148] In some alternative embodiments, please refer to Figures 1 to 3 The first fixing member 70 is made of insulating material, and at least part of the second shielding member 40 is embedded in the first fixing member 70.

[0149] Alternatively, the first fastener 70 can be formed by injection molding.

[0150] Optionally, the shielding body 41 of the second shielding member 40 may be located on the side of the first fixing body 71 of the first fixing member 70 facing the receiving space E1.

[0151] Optionally, at least a portion of the connecting portion 42 of the second shield 40 may be embedded within the first extension 72 of the first fastener 70.

[0152] For example, at least a portion of the first sub-connecting portion 421 of the connecting portion is embedded in the first extension 72 of the first fastener 70, and at least a portion of the second sub-connecting portion 422 of the connecting portion is embedded in the first fastening body 71.

[0153] Optionally, a portion of the surface of the first sub-connector 421 is exposed to the outside so that the fastener 60 contacts the first sub-connector 421.

[0154] In this embodiment of the application, by setting the first fixing member 70 as an insulating material, the possibility of the temperature detection device short-circuiting with other circuits due to the first fixing member 70 contacting other conductive structures can be reduced. At the same time, the manufacturing difficulty of the first fixing member 70 and the second shielding member 40 can be reduced, and the manufacturing cost of the temperature detection device can be reduced.

[0155] In some alternative embodiments, please refer to Figure 4 The first fixing member 70 is made of a conductive material, and at least a portion of the first fixing member 70 located in the accommodating space E1 forms the second shield 40.

[0156] For example, the first fixing member 70 can be directly electrically connected to the external grounding signal terminal so that the first fixing member 70 as a whole forms the second shield 40. For example, the housing of the external device is electrically connected to the external grounding signal terminal, and the first fixing member 70 is fixed to the housing so that the ground fixing member is electrically connected to the external grounding signal terminal.

[0157] In this embodiment, at least a portion of the first fixing member 70 forms the second shielding member 40, so that the first fixing member 70 has both fixing and signal shielding functions, thereby simplifying the overall structure of the fixing assembly and reducing the manufacturing cost of the temperature detection device.

[0158] Figure 5 This is an exploded structural diagram of another temperature detection device provided in the embodiments of this application.

[0159] In some alternative embodiments, please refer to Figure 5 The fixing component includes an output end 90, the first fixing member 70 is provided with an output channel, the output end passes through the output channel K2, and an insulating layer 6 is provided between the output end and the output channel.

[0160] Optionally, the first fixing member 70 may be provided with a through hole to form an output channel K2.

[0161] In this embodiment of the application, when the first fixing member is a conductive material, the output terminal 90 provided on the first fixing member needs to be insulated from the first fixing member 70 in order to reduce the possibility that the temperature signal output by the output terminal 90 and the grounding signal on the first fixing member 70 interfere with each other or even cause the temperature signal output by the output terminal 90 to be exported through the first fixing member 70, thereby reducing the possibility of the temperature detection device malfunctioning.

[0162] Figure 6 This is a cross-sectional structural schematic diagram of another temperature detection device provided in the embodiments of this application.

[0163] In some alternative embodiments, please refer to Figure 3 and Figure 6 The heat-conducting component is movable relative to the first fixing member 70 and / or the second fixing member 80.

[0164] In some examples, the heat-conducting component may be movably disposed relative to the first fixing member 70 and the second fixing member 80. For example, the first fixing member 70 and the second fixing member 80 are fixed relative to each other, and a portion of the heat-conducting component located in the receiving space moves within the receiving space along a first direction X, so that the contact portion 10 can move along the first direction X.

[0165] For example, the conductive connector 50 between the heat-conducting component and the first fixing member 70 can be deformable along the first direction X. During the installation of the heat-conducting component and the device under test 1, the heat-conducting component can press down on the device under test to reduce the possibility of the heat-conducting component separating from the device under test. At the same time, the heat-conducting component can move away from the device under test 1 to reduce the possibility of the device under test 1 squeezing the heat-conducting component due to external impact or vibration, causing the heat-conducting component to be squeezed and deformed.

[0166] For example, an elastic element may be provided between the heat-conducting component and the second fixing member 80, so that when the heat-conducting component is subjected to the force of the device under test 1, the elastic element can provide an additional pushing force, so that when the device under test 1 is subjected to external force to squeeze the heat-conducting component, the heat-conducting component can move more easily away from the device under test 1, thereby reducing the possibility of the heat-conducting component being squeezed and deformed.

[0167] In some examples, the thermally conductive component may also move only relative to the first fastener 70. Exemplarily, the thermally conductive component is fixedly connected to the second fastener 80, and both the thermally conductive component and the second fastener 80 are movable relative to the first fastener 70.

[0168] In some examples, the thermally conductive component may also be movable only relative to the second fastener 80. Exemplarily, the thermally conductive component and the first fastener 70 are fixedly connected, and both the thermally conductive component and the first fastener 70 are movable relative to the second fastener 80.

[0169] In this embodiment of the application, the above-mentioned arrangement helps to reduce the squeezing force of the tested device 1 on the heat-conducting component under the action of external force, thereby reducing the possibility of the heat-conducting component being squeezed and deformed, and improving the service life of the heat-conducting component.

[0170] In some alternative embodiments, the material of the contact portion 10 is a thermally conductive and insulating material, which reduces the possibility of short circuit between the device under test 1 and the external grounding signal terminal while conducting temperature through the contact portion 10, thereby improving the detection accuracy and reliability of the temperature detection device.

[0171] In some alternative embodiments, please refer to Figure 1 A portion of the first shield 20 is embedded in the contact portion 10, and the temperature sensing component 30 and the first shield 20 are insulated from each other through the contact portion 10.

[0172] Optionally, the first shielding portion 21 and the second shielding portion 22 of the first shielding member 20 are embedded in the contact portion 10, and the electrical connection portion 23 of the first shielding member 20 can be exposed in the receiving space E1 so that the electrical connection portion 23 can be electrically connected to the conductive connector 50, while reducing the possibility of the first shielding portion 21 and the second shielding portion 22 coming into contact with the temperature sensing component 30.

[0173] Optionally, the contact portion 10 may include a first contact body 12 and a second extension portion, the second extension portion being located on the periphery of the first contact body 12, the first shield portion 21 and the second shield portion 22 being embedded in the first contact body 12, and the electrical connection portion 23 extending to the surface of the second extension portion 13 facing the first fixing member 70.

[0174] Optionally, the first contact body 12 may have a second groove G2, with a first shielding portion 21 of the first shielding member 20 embedded between the bottom wall of the second groove G2 and the contact surface 11, and a second shielding portion 22 of the first shielding member 20 embedded between the side wall of the second groove G2 and the surface of the first contact body 12 facing away from the side wall of the second groove G2. At least a portion of the temperature sensing component 30 is disposed within the second groove G2. Optionally, the second groove G2 may be filled with an adhesive material 4 to fix the temperature sensing component 30.

[0175] In this embodiment of the application, the above-mentioned arrangement helps to simplify the manufacturing process of the contact part 10 and the first shield 20, reduce the manufacturing cost of the heat conduction component, and at the same time reduce the possibility of electrical contact between the first shield 20 and the temperature sensing component 30, thereby improving the reliability of the temperature detection device.

[0176] According to some embodiments of this application, please refer to Figures 1 to 3The temperature detection device includes a heat-conducting component and a fixing component. The heat-conducting component includes a contact portion 10, a first shield 20, and a temperature sensing component 30. The contact portion 10 has a contact surface 11 on the side facing away from the first shield. At least a portion of the first shield is disposed between the temperature sensing component 30 and the contact surface 11, and the first shield 20 and the temperature sensing component 30 are insulated from each other. The fixing component includes a receiving space, within which at least a portion of a second shield 40 is disposed. A portion of the heat-conducting component is housed within the receiving space, and at least a portion of the contact surface 11 extends out from the receiving space. A shielding space E2 is formed between the first shield 20 and the second shield 40. Both the first shield 20 and the second shield 40 are connected to an external grounding signal terminal, and the temperature sensing component is disposed within the shielding space E2.

[0177] The temperature sensing component includes a temperature sensing element 31 and an output line connected together. The fixed component includes an output terminal, the output line is electrically connected to the output terminal, and the output terminal is used to electrically connect to an external output line 32 bundle.

[0178] The first shield 20 and the second shield 40 are electrically connected via a conductive connector 50, and the second shield 40 is electrically connected to an external ground signal terminal. The conductive connector 50 includes at least one of a conductive seal and a conductive elastic element.

[0179] The second shielding element 40 includes a shielding body 41 and a connecting portion connected to each other. The connecting portion extends to the outside of the fixing component and is used for electrical connection with an external grounding signal terminal. The shielding body 41 is disposed within the receiving space E1. The temperature detection device also includes a fastener for connecting the fixing component to an external device. The connecting portion 42 is electrically connected to the external grounding signal terminal via a fastener 60.

[0180] The first shielding member 20 includes a first shielding part 21, a second shielding part 22, and an electrical connection part 23 connected to each other. The first shielding part 21 is located on the side of the temperature sensing component 30 facing away from the shielding body 41. The second shielding part 22 is located between the first shielding part 21 and the shielding body 41 and is located on the periphery of the temperature sensing component 30. The conductive connection part 50 is located between the electrical connection part 23 and the shielding body 41.

[0181] The fixing component includes a first fixing member and a second fixing member, which together form a receiving space E1. The first fixing member 70 and the second fixing member 80 are arranged sequentially along a first direction X. A portion of the heat-conducting component is located between the first fixing member 70 and the second fixing member, and the second fixing member has an opening, with at least a portion of the contact surface 11 extending out of the opening.

[0182] The first fixing member 70 is made of insulating material, and at least a portion of the second shielding member 40 is embedded within the first fixing member. The heat-conducting assembly is movable relative to both the first and second fixing members 80. The contact portion 10 is made of thermally conductive and insulating material. A portion of the first shielding member 20 is embedded within the contact portion 10, and the temperature sensing assembly 30 and the first shielding member 20 are insulated from each other through the contact portion 10.

[0183] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A temperature detection device, characterized in that, include: A heat-conducting component includes a contact portion, a first shield, and a temperature sensing component. The contact portion has a contact surface on the side facing away from the first shield. At least a portion of the first shield is disposed between the temperature sensing component and the contact surface, and the first shield and the temperature sensing component are mutually insulated. A fixed component includes a receiving space, in which at least a portion of a second shield is provided, a portion of the thermally conductive component is received within the receiving space, and at least a portion of the contact surface extends out of the receiving space, a shielding space is formed between the first shield and the second shield, both the first shield and the second shield are connected to an external grounding signal terminal, and the temperature sensing component is disposed within the shielding space.

2. The temperature detection device according to claim 1, characterized in that, The temperature sensing component includes a temperature sensing element and an output line connected together. The fixing component includes an output terminal. The output line is electrically connected to the output terminal. The output terminal is used to electrically connect to an external output wiring harness.

3. The temperature detection device according to claim 1, characterized in that, The first shielding component and the second shielding component are electrically connected through a conductive connector, and the second shielding component is electrically connected to an external grounding signal terminal.

4. The temperature detection device according to claim 3, characterized in that, The conductive connector includes at least one of a conductive seal and a conductive elastic element.

5. The temperature detection device according to claim 1, characterized in that, The second shielding component includes a shielding body and a connecting portion connected to each other. The connecting portion extends to the outside of the fixing component and is used for electrical connection with an external grounding signal terminal. The shielding body is disposed within the receiving space.

6. The temperature detection device according to claim 1, characterized in that, The temperature detection device also includes fasteners for connecting the fixing component to an external device.

7. The temperature detection device according to claim 5, characterized in that, The temperature detection device also includes a fastener, and the connecting part is electrically connected to an external grounding signal terminal through the fastener.

8. The temperature detection device according to claim 5, characterized in that, The first shielding component and the second shielding component are electrically connected via a conductive connector. The first shielding component includes a first shielding part, a second shielding part, and an electrical connection part connected to each other. The first shielding part is located on the side of the temperature sensing component facing away from the shielding body. The second shielding part is located between the first shielding part and the shielding body and on the periphery of the temperature sensing component. The conductive connection part is located between the electrical connection part and the shielding body.

9. The temperature detection device according to claim 1, characterized in that, The fixing component includes a first fixing member and a second fixing member, which together form an accommodating space. The first fixing member and the second fixing member are arranged sequentially along a first direction. A portion of the heat-conducting component is located between the first fixing member and the second fixing member, and the second fixing member has an opening, with at least a portion of the contact surface extending out from the opening.

10. The temperature detection device according to claim 9, characterized in that, At least a portion of the second shielding member is disposed on the first fixing member.

11. The temperature detection device according to claim 10, characterized in that, The first fastener is made of insulating material, and at least a portion of the second shielding member is embedded within the first fastener.

12. The temperature detection device according to claim 10, characterized in that, The first fastener is made of a conductive material, and at least a portion of the first fastener located in the receiving space forms the second shield.

13. The temperature detection device according to claim 12, characterized in that, The fixing component includes an output end, the first fixing member is provided with an output channel, the output end passes through the output channel, and an insulating layer is provided between the output end and the output channel.

14. The temperature detection device according to claim 9, characterized in that, The heat-conducting component is movable relative to the first fixing member and / or the second fixing member.

15. The temperature detection device according to claim 1, characterized in that, The material of the contact portion is a thermally conductive and insulating material.

16. The temperature detection device according to claim 1, characterized in that, A portion of the first shield is embedded in the contact portion, and the temperature sensing component and the first shield are insulated from each other through the contact portion.

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