A detection method and related equipment

Abstract

The embodiment of the present invention discloses a detection method and related equipment. When the detection plate is connected to the battery module through the thermal pad, the contact image between the detection plate and the thermal pad can be obtained. The detection plate is made of transparent material. The contact image is obtained by photographing the detection plate. Based on the contact image, the bubble rate between the thermal pad and the detection plate can be obtained. The bubble rate can characterize the filling capacity of the thermal pad. Since the thermal pad can fill the gap between the heat dissipation component and the bottom of the battery module, and conduct the heat of the battery module to the heat dissipation component, when there are many bubbles between the thermal pad and the detection plate, it means that the filling capacity of the thermal pad is not good, which is easy to affect the heat exchange between the heat dissipation component and the battery module. Therefore, a transparent detection plate is provided to obtain the filling capacity of the thermal pad in time, which is beneficial to optimize the thermal pad when there are too many bubbles, thereby reducing the bubbles between the thermal pad and the heat dissipation component and improving the heat dissipation efficiency of the battery module.

Description

Technical Field

[0001] The present invention relates to the field of automobiles, and in particular to a detection method and related equipment. Background Art

[0002] At present, the battery module can be cooled. Specifically, a heat dissipation component can be provided for the battery module. The heat dissipation component can conduct heat, thereby dissipating the heat of the battery module during operation, thereby achieving heat dissipation of the battery module. How to achieve contact between the battery module and the heat dissipation component to improve the heat dissipation efficiency of the battery module is an important issue in this field. Usually, the contact quality between the heat dissipation component and the battery module cannot be detected, resulting in uncontrollable heat dissipation efficiency of the battery module. Summary of the invention

[0003] In order to solve the above technical problems, the embodiments of the present application provide a detection method and related equipment to detect the filling capacity of the thermal pad, which is beneficial to improving the heat dissipation efficiency of the battery module.

[0004] The present application provides a detection method, including:

[0005] When the detection board is connected to the battery module through the thermal pad, a contact image between the detection board and the thermal pad is obtained; the detection board is made of transparent material, and the contact image is obtained by photographing the thermal pad from the detection board side;

[0006] The bubble rate between the thermal pad and the detection plate is acquired based on the contact image; the bubble rate is used to characterize the filling capacity of the thermal pad.

[0007] Optionally, the thermal pad is used to connect the battery module and the heat dissipation component, the difference between the stiffness of the detection plate and the stiffness of the heat dissipation plate is within a preset range, and the heat dissipation plate is a flat plate structure of the heat dissipation component in contact with the thermal pad.

[0008] Optionally, the heat dissipation component is made of aluminum, and the detection plate is made of acrylic.

[0009] Optionally, the method further includes:

[0010] When the bubble rate is greater than or equal to a preset value, the parameters of the thermal pad are optimized according to the bubble rate; the parameters of the thermal pad include the thickness and / or hardness of the thermal pad.

[0011] Optionally, the method further includes:

[0012] When the bubble rate is less than a preset value, it is indicated that the thermal pad is qualified, so that the thermal pad can be used to connect the battery module and the heat dissipation component.

[0013] The present application also provides a detection device, including:

[0014] An image acquisition unit, used to acquire a contact image between the detection board and the thermal pad when the detection board is connected to the battery module through the thermal pad; the detection board is made of transparent material, and the contact image is obtained by photographing the thermal pad from the detection board side;

[0015] The bubble rate determination unit is used to obtain the bubble rate between the thermal pad and the detection plate based on the contact image; the bubble rate is used to characterize the filling capacity of the heat dissipation pad.

[0016] Optionally, the thermal pad is used to connect the battery module and the heat dissipation component, the difference between the stiffness of the detection plate and the stiffness of the heat dissipation plate is within a preset range, and the heat dissipation plate is a flat plate structure of the heat dissipation component in contact with the thermal pad.

[0017] Optionally, the heat dissipation component is made of aluminum, and the detection plate is made of acrylic.

[0018] Optionally, the device further comprises:

[0019] The optimization unit is used to optimize the parameters of the thermal pad according to the bubble rate when the bubble rate is greater than or equal to a preset value; the parameters of the thermal pad include the thickness and / or hardness of the thermal pad.

[0020] Optionally, the device further comprises:

[0021] The prompting unit is used to prompt that the thermal pad is qualified when the bubble rate is less than a preset value, so as to use the thermal pad to connect the battery module and the heat dissipation component.

[0022] The embodiment of the present application also provides a detection device, including: a processor, a memory, and a system bus;

[0023] The processor and the memory are connected via the system bus;

[0024] The memory is used to store one or more programs, wherein the one or more programs include instructions, and when the instructions are executed by the processor, the processor executes the detection method.

[0025] An embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, and when the instructions are executed on a terminal device, the terminal device executes the detection method.

[0026] The embodiment of the present application provides a detection method and related equipment. When the detection plate is connected to the battery module through the thermal pad, the contact image between the detection plate and the thermal pad can be obtained. The detection plate is made of transparent material. The contact image is obtained by photographing the thermal pad from the detection plate side. Based on the contact image, the bubble rate between the thermal pad and the detection plate can be obtained. The bubble rate can characterize the filling capacity of the thermal pad. Since the thermal pad can fill the gap between the heat dissipation component and the bottom of the battery module, and conduct the heat of the battery module to the heat dissipation component, when there are many bubbles between the thermal pad and the detection plate, it means that the filling capacity of the thermal pad is not good, which is easy to affect the heat exchange between the heat dissipation component and the battery module. Therefore, a transparent detection plate is set to obtain the connection status between the thermal pad and the detection plate in time, and then obtain the filling capacity of the thermal pad, which is conducive to optimizing the thermal pad when there are too many bubbles, thereby reducing the bubbles between the thermal pad and the heat dissipation component, and improving the heat dissipation efficiency of the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0028] Figure 1 A schematic diagram of a heat dissipation device provided in an embodiment of the present application;

[0029] Figure 2 A flow chart of a detection method provided in an embodiment of the present application;

[0030] Figure 3 A structural block diagram of a detection device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] The battery module generates heat when it is working. In order to improve the working efficiency and life of the battery module, the battery module can be cooled. Specifically, a heat dissipation component can be provided for the battery module. The heat dissipation component can conduct heat, thereby dissipating the heat generated by the battery module when it is working, thereby achieving heat dissipation of the battery module. Usually, the contact quality between the heat dissipation component and the battery module cannot be detected, resulting in uncontrollable heat dissipation efficiency of the battery module.

[0033] At present, thermal pads are usually used to connect the battery module and the heat dissipation component. The thermal pad can fill the gap between the heat dissipation component and the battery module. Figure 1 , which is a schematic diagram of the structure of a heat dissipation device provided in an embodiment of the present application, the heat dissipation device may include a heat dissipation component 100, the heat dissipation component 100 may dissipate heat from a battery module 300, and the heat dissipation component 100 and the battery module 300 are in contact with the battery module 300 through a thermal pad 200. The thermal pad conducts the heat of the battery module to the heat dissipation component, and at the same time uses its own viscosity to fix the battery module and the heat dissipation component.

[0034] Then, the inventors discovered through research that the heat dissipation component 100 is usually made of opaque material, such as metal aluminum, and the battery module 300 is also made of opaque material. The connection quality between the thermal pad 200 and the heat dissipation component 100 is not easy to obtain. When the connection quality between the thermal pad 200 and the heat dissipation component 100 is poor, the heat conduction between the heat dissipation component 100 and the battery module 300 is affected.

[0035] Based on the above technical problems, the embodiment of the present application provides a detection method and related equipment. When the detection plate is connected to the battery module through the thermal pad, the contact image between the detection plate and the thermal pad can be obtained. The detection plate is made of transparent material. The contact image is obtained by photographing the thermal pad from the detection plate side. Based on the contact image, the bubble rate between the thermal pad and the detection plate can be obtained. The bubble rate can characterize the filling capacity of the thermal pad. Since the thermal pad can fill the gap between the heat dissipation component and the bottom of the battery module, and conduct the heat of the battery module to the heat dissipation component, when there are many bubbles between the thermal pad and the detection plate, it means that the filling capacity of the thermal pad is not good, which is easy to affect the heat exchange between the heat dissipation component and the battery module. Therefore, a transparent detection plate is set to obtain the connection status between the thermal pad and the detection plate in time, and then obtain the filling capacity of the thermal pad, which is beneficial to optimize the thermal pad when there are too many bubbles, thereby reducing the bubbles between the thermal pad and the heat dissipation component and improving the heat dissipation efficiency of the battery module.

[0036] The specific implementation of the embodiment of the present invention is described in detail below through examples in conjunction with the accompanying drawings.

[0037] refer to Figure 2 FIG. 1 is a flow chart of a detection method provided in an embodiment of the present application, and the method may include:

[0038] S101, when the detection board is connected to the battery module through the thermal pad, obtaining a contact image between the detection board and the thermal pad.

[0039] At present, thermal pads are usually used to achieve the connection between the battery module and the heat dissipation component. That is, the thermal pad is used to connect the battery module and the heat dissipation component. The thermal pad can fill the gap between the heat dissipation component and the battery module. The thermal pad transfers the heat of the battery module to the heat dissipation component and uses its own viscosity to fix the battery module and the heat dissipation component. However, the heat dissipation component is usually made of opaque material, such as metal aluminum. The connection quality between the thermal pad and the heat dissipation component is not easy to obtain. When the connection quality between the thermal pad and the heat dissipation component is poor, the heat conduction between the heat dissipation component and the battery module is affected.

[0040] Therefore, in the embodiment of the present application, a thermal pad can be used to connect the battery module and the detection board. The detection board is made of a transparent material. In this way, when the detection board is connected to the battery module through the thermal pad, the bubble rate between the thermal pad and the detection board can be detected through the detection board. If the bubble rate between the detection plate and the thermal pad is large, it means that there is more air between the two, and the filling capacity of the thermal pad is poor. Therefore, when the same thermal pad is used to connect the heat dissipation component and the battery module, a large number of bubbles are likely to exist between the heat dissipation component and the thermal pad. The thermal conductivity of the air is poor, and the thermal conductivity between the thermal pad and the heat dissipation component is poor, and efficient heat conduction between the heat dissipation component and the battery module cannot be achieved.

[0041] The heat dissipation component can dissipate heat from the battery module. For example, the heat dissipation component can be a low-temperature component. When the battery module generates heat during operation, the heat can be transferred to the heat dissipation component to cool the battery module. The heat dissipation component can be an integrated heat-conducting structure that transfers heat to a component with a lower temperature, or it can be a hollow structure in which a heat dissipation medium is arranged to cool the battery module.

[0042] The heat dissipation component may include at least one flat plate structure, which faces the battery module and can contact the battery module through a thermal pad. The flat plate structure can serve as a heat dissipation plate. The thermal pad can have good thermal conductivity, thereby transferring the heat of the battery module to the heat dissipation component. This requires that the thermal pad has good contact with the battery module and good contact with the heat dissipation component to achieve effective heat conduction.

[0043] In order to better utilize the detection board to simulate the heat sink of the heat dissipation component, the stiffness of the detection board can be determined according to the stiffness of the heat sink. The heat sink is a flat plate structure of the heat dissipation component used to contact the thermal pad. Specifically, the difference between the stiffness of the detection board and the stiffness of the heat sink is within a preset range. Of course, the stiffness of the detection board can be equal to the stiffness of the heat sink, which can ensure that the heat sink and the detection plate produce the same deformation after contacting the battery module, so that the connection quality between the detection plate and the thermal pad can accurately reflect the connection quality between the heat sink and the thermal pad.

[0044] The stiffness of the detection plate is determined by the material stiffness and thickness of the detection plate, for example, the product of the material stiffness and thickness. The stiffness of the heat dissipation surface is determined by the material and thickness of the heat dissipation component, for example, the product of the material and thickness of the heat dissipation component.

[0045] Specifically, the material of the heat dissipation component is aluminum, and the material of the detection plate is acrylic. Compared with the existing metal materials, the rigidity thereof is reduced. Therefore, the thickness of the acrylic plate can be increased to achieve the same rigidity as the existing metal materials. The thickness range of the acrylic plate can be 15-50 mm.

[0046] In addition, the thermal pad itself can be sticky, so that it can be fixed to the heat dissipation component and the battery module more stably. The thermal pad can be made of a transparent material or a non-transparent material. For example, the material of the thermal pad can be silicone rubber. In specific implementation, the thermal pad can be fixed to the bottom of the battery module first. At this time, the connection quality between the thermal pad and the battery module can be controlled. Then, the battery module with the thermal pad is placed on the detection board so that the thermal pad and the detection board are in contact.

[0047] Specifically, when the detection board is connected to the battery module through the thermal pad, a contact image between the detection board and the thermal pad can be obtained. Since the detection board is made of transparent material, the thermal pad can be photographed from the detection board side to obtain a contact image between the detection board and the thermal pad.

[0048] S102, acquiring the bubble rate between the thermal pad and the detection plate based on the contact image.

[0049] After acquiring the contact image, the bubble rate between the thermal pad and the detection plate can be estimated manually; the bubble position can also be determined manually, and the bubble rate between the thermal pad and the detection plate can be calculated using a computer; the computer can also perform image recognition to identify the bubble position and then calculate the bubble rate between the thermal pad and the detection plate.

[0050] The bubble rate between the thermal pad and the test plate can characterize the filling capacity of the thermal pad. The filling capacity is related to the thermal pad's own characteristics, such as the thickness and / or hardness of the thermal pad. When the hardness of the thermal pad is higher, it has a relatively low filling quality, which easily leads to a higher bubble rate. When the thickness of the thermal pad is higher, it has a relatively low filling quality, which easily leads to a higher bubble rate.

[0051] The bubble rate between the thermal pad and the test plate can be calculated based on the bubble area between the thermal pad and the test plate and the total contact area between the thermal pad and the test plate. When the bubble rate between the thermal pad and the test plate is large, it means that the filling capacity of the thermal pad is poor, and the thermal pad can be optimized. When the bubble rate between the thermal pad and the test plate is small, it means that the filling capacity of the thermal pad is good, and the thermal pad can be used to connect the heat dissipation component and the battery module. Specifically, the thermal pad and the test plate can be separated, and the thermal pad and the heat dissipation component can be connected.

[0052] Specifically, when the bubble rate is greater than or equal to a preset value, the parameters of the thermal pad can be optimized according to the bubble rate. The parameters of the thermal pad may include the thickness and / or hardness of the thermal pad. For example, the thermal pad has a larger thickness and a smaller hardness, so that the staff can adjust the thermal pad according to the optimized parameters of the thermal pad. When the bubble rate is less than the preset value, it is prompted that the thermal pad is qualified so that the thermal pad can be used to connect the battery module and the heat dissipation component. The preset value can be pre-set and is related to the heat dissipation requirements of the battery module. As an example, the preset value can be 5%.

[0053] The embodiment of the present application provides a detection method. When the detection plate is connected to the battery module through the thermal pad, the contact image between the detection plate and the thermal pad can be obtained. The detection plate is made of transparent material. The contact image is obtained by photographing the thermal pad from the detection plate side. Based on the contact image, the bubble rate between the thermal pad and the detection plate can be obtained. The bubble rate can characterize the filling capacity of the thermal pad. Since the thermal pad can fill the gap between the heat dissipation component and the bottom of the battery module, and conduct the heat of the battery module to the heat dissipation component, when there are many bubbles between the thermal pad and the detection plate, it means that the filling capacity of the thermal pad is poor, which is easy to affect the heat exchange between the heat dissipation component and the battery module. Therefore, a transparent detection plate is set to obtain the connection status between the thermal pad and the detection plate in time, and then obtain the filling capacity of the thermal pad, which is conducive to optimizing the thermal pad when there are too many bubbles, thereby reducing the bubbles between the thermal pad and the heat dissipation component, and improving the heat dissipation efficiency of the battery module.

[0054] Based on a detection method provided in an embodiment of the present application, an embodiment of the present application also provides a detection device, referring to Figure 3 As shown, it is a structural block diagram of a detection device provided in an embodiment of the present application, and the device may include:

[0055] The image acquisition unit 110 is used to acquire a contact image between the detection board and the thermal pad when the detection board is connected to the battery module through the thermal pad; the detection board is made of transparent material, and the contact image is obtained by photographing the thermal pad from the detection board side;

[0056] The bubble rate determination unit 120 is used to obtain the bubble rate between the thermal pad and the detection plate based on the contact image; the bubble rate is used to characterize the filling capacity of the heat dissipation pad.

[0057] Optionally, the thermal pad is used to connect the battery module and the heat dissipation component, the difference between the stiffness of the detection plate and the stiffness of the heat dissipation plate is within a preset range, and the heat dissipation plate is a flat plate structure of the heat dissipation component in contact with the thermal pad.

[0058] Optionally, the heat dissipation component is made of aluminum, and the detection plate is made of acrylic.

[0059] Optionally, the device further comprises:

[0060] The optimization unit is used to optimize the parameters of the thermal pad according to the bubble rate when the bubble rate is greater than or equal to a preset value; the parameters of the thermal pad include the thickness and / or hardness of the thermal pad.

[0061] Optionally, the device further comprises:

[0062] The prompting unit is used to prompt that the thermal pad is qualified when the bubble rate is less than a preset value, so as to use the thermal pad to connect the battery module and the heat dissipation component.

[0063] The embodiment of the present application provides a detection device, when the detection plate is connected to the battery module through the thermal pad, the contact image between the detection plate and the thermal pad can be obtained, the detection plate is made of transparent material, the contact image is obtained by photographing the thermal pad from the detection plate side, and the bubble rate between the thermal pad and the detection plate can be obtained based on the contact image, and the bubble rate can characterize the filling capacity of the thermal pad. Since the thermal pad can fill the gap between the heat dissipation component and the bottom of the battery module, and conduct the heat of the battery module to the heat dissipation component, when there are many bubbles between the thermal pad and the detection plate, it means that the filling capacity of the thermal pad is poor, which is easy to affect the heat exchange between the heat dissipation component and the battery module. Therefore, a transparent detection plate is set to obtain the connection status between the thermal pad and the detection plate in time, and then obtain the filling capacity of the thermal pad, which is conducive to optimizing the thermal pad when there are too many bubbles, thereby reducing the bubbles between the thermal pad and the heat dissipation component, and improving the heat dissipation efficiency of the battery module.

[0064] Furthermore, an embodiment of the present application also provides a detection device, including: a processor, a memory, and a system bus;

[0065] The processor and the memory are connected via the system bus;

[0066] The memory is used to store one or more programs, and the one or more programs include instructions. When the instructions are executed by the processor, the processor executes any one of the implementation methods of the above-mentioned detection method.

[0067] Furthermore, an embodiment of the present application also provides a computer-readable storage medium, in which instructions are stored. When the instructions are executed on a terminal device, the terminal device executes any one of the implementation methods of the above-mentioned detection method.

[0068] Through the description of the above implementation methods, it can be known that those skilled in the art can clearly understand that all or part of the steps in the above-mentioned embodiment method can be implemented by means of software plus a general hardware platform. Based on such an understanding, the technical solution of the present invention can be embodied in the form of a software product, which can be stored in a storage medium, such as a read-only memory (ROM) / RAM, a magnetic disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network communication device such as a router) to execute the methods described in each embodiment of the present invention or some parts of the embodiments.

[0069] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can refer to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can refer to the partial description of the method embodiment. The equipment and system embodiments described above are merely schematic, in which the modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative work.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A detection method, characterized in that: include: When the detection board is connected to the battery module through the thermal pad, acquiring a contact image between the detection board and the thermal pad; The detection plate is made of transparent material, and the contact image is obtained by photographing the thermal pad from the detection plate side; acquiring a bubble rate between the thermal pad and the detection plate based on the contact image; The bubble rate is used to characterize the filling capacity of the thermal pad; The thermal pad is used to connect the battery module and the heat dissipation component. The difference between the stiffness of the detection plate and the stiffness of the heat dissipation plate is within a preset range. The heat dissipation plate is a flat plate structure of the heat dissipation component that contacts the thermal pad.

2. The method according to claim 1, characterized in that The material of the heat dissipation component is aluminum, and the material of the detection plate is acrylic.

3. The method according to claim 1, characterized in that: Also includes: When the bubble rate is greater than or equal to a preset value, the parameters of the thermal pad are optimized according to the bubble rate; the parameters of the thermal pad include the thickness and / or hardness of the thermal pad.

4. The method according to any one of claims 1 to 3, characterized in that: Also includes: When the bubble rate is less than a preset value, it is indicated that the thermal pad is qualified, so that the thermal pad can be used to connect the battery module and the heat dissipation component.

5. A detection device, characterized in that: include: An image acquisition unit, used for acquiring a contact image between the detection board and the thermal pad when the detection board is connected to the battery module through the thermal pad; The detection plate is made of transparent material, and the contact image is obtained by photographing the thermal pad from the detection plate side; a bubble rate determining unit, configured to obtain a bubble rate between the thermal pad and the detection plate based on the contact image; The bubble rate is used to characterize the filling capacity of the thermal pad; The thermal pad is used to connect the battery module and the heat dissipation component. The difference between the stiffness of the detection plate and the stiffness of the heat dissipation plate is within a preset range. The heat dissipation plate is a flat plate structure of the heat dissipation component that contacts the thermal pad.

6. The device according to claim 5, characterized in that Also includes: The optimization unit is used to optimize the parameters of the thermal pad according to the bubble rate when the bubble rate is greater than or equal to a preset value; the parameters of the thermal pad include the thickness and / or hardness of the thermal pad.

7. A detection device, characterized in that: include: Processor, memory, system bus; The processor and the memory are connected via the system bus; The memory is used to store one or more programs, and the one or more programs include instructions, and when the instructions are executed by the processor, the processor executes the detection method according to any one of claims 1 to 4.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores instructions, and when the instructions are executed on a terminal device, the terminal device executes the detection method according to any one of claims 1 to 4.

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