Novel temperature sensing detection device

Abstract

The utility model discloses a novel temperature sensing detection device, comprising a PCB board, the PCB board is provided with a temperature sensing element, and the temperature sensing element is used for detecting the temperature value of a wiring terminal in real time; the insulation heat conduction layer is used for absorbing heat of the wiring terminal and transmitting the heat to a temperature sensing element of the PCB, and the temperature sensing element is installed in the insulation heat conduction layer in an embedded mode; and the heat-conducting metal sheet is arranged outside the insulating heat-conducting layer in a wrapping manner, and the metal heat-conducting metal sheet is in contact with the PCB, absorbs the heat of the wiring terminal and uniformly conducts the heat to the insulating heat-conducting layer. According to the utility model, the temperature sensing element and the heat conduction material are integrated, so that under the condition of ensuring insulation and voltage resistance, assembly integration is realized, temperature detection precision is improved, and safety accidents caused by over-temperature spontaneous combustion of products are prevented.

Description

Technical Field

[0001] The utility model relates to the field of new energy vehicles, and in particular to a novel temperature sensing detection device. Background Art

[0002] Temperature sensing devices are widely used in various electrical equipment and circuits to monitor temperature changes in real time to prevent equipment from malfunctioning or being damaged due to overheating. In the prior art, the following methods are usually used for temperature detection:

[0003] Tubular temperature sensor detection: The temperature is detected by inserting the tubular temperature sensor close to the current-carrying terminal or opening a hole in the shell. This method can directly measure the temperature of the terminal, but due to aging during long-term use, the insulation performance may deteriorate, which poses a safety hazard.

[0004] PCB board patch temperature sensing detection: The temperature sensing element is mounted on the PCB board, and the temperature is detected by transferring heat through air and plastic parts. Although this method is easy to install, due to the certain gap between the temperature sensing element and the terminal, the heat conduction efficiency is low, resulting in low response speed and accuracy of temperature detection.

[0005] These existing temperature detection methods have some deficiencies and disadvantages in practical applications:

[0006] The tubular temperature sensing element is directly inserted into the terminal for temperature detection. The insulation performance may deteriorate during long-term use, increasing the safety hazard during the use of the equipment.

[0007] A tubular temperature sensor is installed in the shell for temperature detection. Due to the distance between the temperature measurement point and the actual heating point, the difference between the detection value and the actual temperature is large, which reduces the reliability of temperature detection and the effectiveness of over-temperature protection.

[0008] For devices with more signal terminals, direct wiring is used for temperature detection, which takes up a large space, increases installation complexity and protection risks, and also increases costs and maintenance difficulties.

[0009] Since there is a certain gap between the temperature sensing element and the terminal, the temperature conduction efficiency is low, resulting in low response speed and accuracy of temperature detection, and it cannot reflect the actual temperature changes of the terminal in a timely and accurate manner. Summary of the invention

[0010] In order to solve the above problems, the utility model provides a novel temperature sensing detection device, which integrates the temperature sensing element with the heat conductive material to achieve assembly integration while ensuring insulation and voltage resistance, thereby improving the temperature detection accuracy and preventing safety accidents caused by product overheating and spontaneous combustion.

[0011] The utility model is realized by the following technical scheme: a novel temperature sensing detection device, comprising:

[0012] A PCB board, wherein a temperature sensing element is installed on the PCB board for detecting the temperature value of the connection terminal in real time;

[0013] An insulating heat-conducting layer, which is used to absorb the heat of the connecting terminal and transfer the heat to the temperature sensing element of the PCB board, and the temperature sensing element is embedded in the insulating heat-conducting layer;

[0014] The heat-conducting metal sheet is wrapped and installed on the outside of the insulating heat-conducting layer. The heat-conducting metal sheet contacts the PCB board and absorbs the heat of the connecting terminal and evenly conducts it to the insulating heat-conducting layer.

[0015] As a preferred technical solution, a temperature sensing extension portion is provided at a position corresponding to the insulating heat conductive layer on the PCB board, a slot is provided on the insulating heat conductive layer corresponding to the temperature sensing extension portion, the temperature sensing element patch is installed on the temperature sensing extension portion and inserted into the slot, and the temperature sensing element is wrapped by the insulating heat conductive layer.

[0016] As a preferred technical solution, the side of the heat-conducting metal sheet facing the continuous terminal is a contact heat-absorbing surface, and the heat-conducting metal sheet absorbs the heat of the connecting terminal through the contact heat-absorbing surface.

[0017] As a preferred technical solution, the heat-conducting metal sheet is provided with multiple groups of protruding clip parts, and a clip cavity is formed in the middle of each group of clip parts. A clip block is protruding from the insulating heat-conducting layer corresponding to each clip cavity. The clip block is clipped into the clip cavity to complete the wrapping and fixation of the heat-conducting metal sheet and the insulating heat-conducting layer.

[0018] As a preferred technical solution, the clamping block has a conical guide surface, and the side away from the conical guide surface is a vertical limiting surface. The clamping block is inserted into the clamping cavity through the conical guide surface and is limited at the clamping part by the vertical limiting surface on the back.

[0019] As a preferred technical solution, a terminal protrusion is formed at the bottom of each of the connection terminals, and the heat-conducting metal sheet is in heat-conducting contact with the terminal protrusion.

[0020] The beneficial effects of the utility model are as follows: the utility model integrates the patch-type temperature sensing element with the heat-conducting material. At the temperature sensing part, the PCB board adopts the through-hole copper sheet to fully cover the patch, the outside of the temperature sensing element is covered by the insulating heat-conducting material, and finally the insulating heat-conducting material is wrapped by the heat-conducting sheet and closely attached to the current-carrying terminal, which can improve the response speed and accuracy of temperature detection and ensure real-time monitoring of temperature changes;

[0021] The temperature sensing element and the output line are integrated into the temperature sensing PCB board and connected to the external detection circuit, which solves the original complex wiring method, makes the space utilization higher, the structure simpler, and reduces the difficulty of installation and maintenance;

[0022] The utility model ensures the safe isolation of the temperature sensing element and the current-carrying terminal through the dual protection of the insulating heat-conducting material and the heat-conducting sheet, prevents insulation aging and spontaneous combustion accidents caused by excessive temperature, and improves the safety and reliability of equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the utility model after removing the connection terminals;

[0026] Figure 3 For this utility model Figure 2 A schematic diagram of a local section in FIG.

[0027] Description of reference numerals:

[0028] 1. Wiring terminal; 2. Terminal protrusion; 3. Heat-conducting metal sheet; 4. Insulating heat-conducting layer; 5. PCB board; 6. Temperature sensing element; 7. Temperature sensing extension part; 31. Contact heat-absorbing surface; 32. Clamping part; 41. Clamping block. DETAILED DESCRIPTION

[0029] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0030] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0031] like Figure 1 and Figure 2As shown, a novel temperature sensing detection device of the utility model includes a PCB board 5, on which a temperature sensing element 6 is installed, which is used to detect the temperature value of the connection terminal 1 in real time. The temperature sensing element 6 is a temperature detection sensor, which is used to detect the current temperature value of the external object and feed it back to the PCB board 5, so as to obtain the current temperature value;

[0032] It also includes an insulating heat-conducting layer 4, which is used to absorb the heat of the connecting terminal 1 and transfer the heat to the temperature sensing element 6 of the PCB board 5. The temperature sensing element 6 is embedded in the insulating heat-conducting layer 4. Since the temperature sensing element 6 is embedded and wrapped in the insulating heat-conducting layer 4, the heat transfer is more sufficient, the temperature can be effectively absorbed, and the heat can be continuously transferred to the temperature sensing element 6, which can improve the timeliness and accuracy of temperature detection;

[0033] In this embodiment, the temperature sensor is integrated with the heat-conducting material, and the assembly is integrated while ensuring the insulation and withstand voltage, so as to improve the temperature inspection accuracy and prevent the product from overheating and spontaneous combustion and causing safety accidents.

[0034] In order to improve the uniformity of thermal conductivity, the present embodiment also includes a thermally conductive metal sheet 3, which is wrapped and installed on the outside of the insulating thermally conductive layer 4. The thermally conductive metal sheet contacts the PCB board 5 and absorbs the heat of the connecting terminal 1 and evenly conducts it to the insulating thermally conductive layer 4. The thermally conductive metal sheet can quickly absorb the heat of the connecting terminal 1 and evenly transfer the heat to the insulating thermally conductive layer 4. The thermally conductive metal sheet can be detachably assembled with the insulating thermally conductive layer 4, or it can be fixedly assembled.

[0035] like Figure 3 As shown, a temperature sensing extension part 7 is provided at a position corresponding to the insulating heat conductive layer 4 on the PCB board 5, and a slot is provided on the insulating heat conductive layer 4 corresponding to the temperature sensing extension part 7, the temperature sensing element 6 is patched on the temperature sensing extension part 7 and inserted into the slot, and the temperature sensing element 6 is wrapped by the insulating heat conductive layer 4. Since the temperature sensing element 6 is fully wrapped by the insulating heat conductive layer 4, the heat is evenly absorbed and the detection is more balanced.

[0036] The side of the heat-conducting metal sheet 3 facing the continuous terminal is a contact heat-absorbing surface 31 , and the heat-conducting metal sheet 3 absorbs the heat of the connecting terminal 1 through the contact heat-absorbing surface 31 .

[0037] In this embodiment, a plurality of groups of protruding clipping parts 32 are provided on the thermally conductive metal sheet 3, and a clipping cavity is formed in the middle of each group of clipping parts 32. A clipping block 41 is protrudingly provided on the insulating thermal conductive layer 4 corresponding to each clipping cavity. The clipping block 41 is clipped into the clipping cavity to complete the wrapping and fixing of the thermally conductive metal sheet 3 and the insulating thermal conductive layer 4. The insulating thermal conductive layer 4 and the thermally conductive metal sheet can be disassembled and assembled, so it is more flexible to use.

[0038] Specifically, Figure 2As shown, the clamping block 41 has a conical guide surface, and the side away from the conical guide surface is a vertical limiting surface. The clamping block 41 is inserted into the clamping cavity through the conical guide surface and is limited by the vertical limiting surface on the back at the clamping portion 32.

[0039] A terminal protrusion 2 is formed at the bottom of each connection terminal 1 , and the heat-conducting metal sheet 3 is in heat-conducting contact with the terminal protrusion 2 .

[0040] The utility model integrates the patch-type temperature sensing element 6 with the heat-conducting material. At the temperature sensing part, the PCB board 5 is fully covered with a through-hole copper sheet, and the temperature sensing element 6 is covered with an insulating heat-conducting material on the outside. Finally, the insulating heat-conducting material is wrapped with a heat-conducting sheet and is close to the current-carrying terminal, which can improve the response speed and accuracy of temperature detection and ensure real-time monitoring of temperature changes.

[0041] The temperature sensing element 6 and the output line are integrated in the temperature sensing PCB board 5 and connected to the external detection circuit, which solves the original complicated wiring method, makes the space utilization higher, the structure simpler, and reduces the difficulty of installation and maintenance.

[0042] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A novel temperature sensing detection device, characterized in that: include: A PCB board (5), wherein a temperature sensing element (6) is mounted on the PCB board (5) and is used to detect the temperature value of the connection terminal (1) in real time; An insulating heat-conducting layer (4) for absorbing heat from the connecting terminal (1) and transferring the heat to a temperature-sensing element (6) on a PCB board (5), wherein the temperature-sensing element (6) is embedded in the insulating heat-conducting layer (4); A heat-conducting metal sheet (3) is wrapped and installed outside the insulating heat-conducting layer (4), and the heat-conducting metal sheet is in contact with the PCB board (5) and absorbs the heat of the connecting terminal (1) and evenly conducts it to the insulating heat-conducting layer (4).

2. The novel temperature sensing detection device according to claim 1 is characterized in that: A temperature sensing extension part (7) is arranged on the PCB board (5) at a position corresponding to the insulating heat conductive layer (4), a slot is arranged on the insulating heat conductive layer (4) corresponding to the temperature sensing extension part (7), the temperature sensing element (6) patch is mounted on the temperature sensing extension part (7) and inserted into the slot, and the temperature sensing element (6) is wrapped by the insulating heat conductive layer (4).

3. The novel temperature sensing detection device according to claim 1 is characterized in that: The side of the heat-conducting metal sheet (3) facing the continuous terminal is a contact heat-absorbing surface (31), and the heat-conducting metal sheet (3) absorbs the heat of the connecting terminal (1) through the contact heat-absorbing surface (31).

4. The novel temperature sensing detection device according to claim 1 is characterized in that: The heat-conducting metal sheet (3) is provided with a plurality of groups of protruding clamping parts (32), a clamping cavity is formed in the middle of each group of clamping parts (32), and a clamping block (41) is protrudingly provided on the insulating heat-conducting layer (4) corresponding to each clamping cavity, and the clamping block (41) is clamped into the clamping cavity to complete the wrapping and fixing of the heat-conducting metal sheet (3) and the insulating heat-conducting layer (4).

5. The novel temperature sensing detection device according to claim 4 is characterized in that: The clamping block (41) has a conical guide surface, and the side away from the conical guide surface is a vertical limiting surface. The clamping block (41) is inserted into the clamping cavity through the conical guide surface and is limited by the vertical limiting surface on the back at the clamping portion (32).

6. The novel temperature sensing detection device according to claim 1 is characterized in that: A terminal protrusion (2) is formed at the bottom of each of the connection terminals (1), and the heat-conducting metal sheet (3) is in heat-conducting contact with the terminal protrusion (2).

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