Battery test temperature control device
By adopting an adjustable-length accommodating tank and liquid cooling channel design in the battery testing device, the problems of uneven temperature and low space utilization in battery testing are solved, achieving consistency and safety of battery test results and adapting to the actual application scenarios of power batteries.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI XUANYI NEW ENERGY DEV CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-05-15
AI Technical Summary
Existing battery testing chambers suffer from uneven temperature distribution, low space utilization, high short-circuit risk, and temperature control methods that differ from actual application scenarios.
It adopts an adjustable-length accommodating tank design, combined with liquid cooling channels and heat conduction modules, and uses coolant for heat exchange to ensure temperature uniformity and adaptability to different battery models. The liquid cooling method closely resembles real-world application scenarios.
It achieves consistency in battery test results, improves space utilization, reduces short-circuit risk, and provides uniform cooling, meeting the actual application requirements of power batteries.
Smart Images
Figure CN224248070U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of battery testing equipment, and in particular to a battery testing temperature control device. Background Technology
[0002] With the rapid development of the new energy vehicle industry, the performance testing and temperature control of power batteries, as core components of new energy vehicles, have become particularly important. Batteries generate a large amount of heat during charging and discharging; if this heat cannot be dissipated in time, the battery temperature will rise, affecting battery performance and safety. Therefore, effective temperature control of batteries is crucial to ensuring battery performance and safety.
[0003] Currently, battery testing typically uses a temperature chamber, where the battery temperature is controlled by air cooling. However, this method has several problems: First, due to the characteristics of air cooling, the temperature distribution inside the chamber is uneven, resulting in different heat dissipation conditions for batteries in different locations, affecting the consistency of test results; second, the limited space inside the temperature chamber and the crisscrossing test circuits not only reduce space utilization but also pose a short-circuit risk; furthermore, the temperature control method of the temperature chamber differs from actual application scenarios, especially since power batteries in practical applications typically use liquid cooling for temperature control. Utility Model Content
[0004] In view of the above-mentioned problems in existing battery testing, this paper aims to provide a battery testing temperature control device.
[0005] The specific technical solution is as follows:
[0006] A battery testing temperature control device includes: at least one temperature control module, the temperature control module having a receiving groove for positioning and placing a battery, the length of the receiving groove being adjustable, and a liquid cooling channel forming inside the temperature control module, wherein coolant is supplied to the liquid cooling channel to perform heat exchange on the battery in the receiving groove.
[0007] Preferably, the temperature control module includes a heat-conducting part and a temperature control part, the liquid cooling channel is disposed inside the temperature control part and the temperature control part is disposed outside the heat-conducting part, and the receiving groove is disposed at the center of the heat-conducting part.
[0008] Preferably, the heat-conducting part includes: a plurality of heat-conducting modules, which are stacked longitudinally, and each heat-conducting module is provided with a positioning port, and the accommodating groove is formed between the plurality of positioning ports.
[0009] Preferably, it further includes: two clamping plates, the two clamping plates are arranged opposite to each other, and both sides of each heat-conducting module are longitudinally slidably disposed on the opposite ends of the two clamping plates, and the temperature control unit is disposed on the opposite ends of the two clamping plates.
[0010] Preferably, each of the two clamping plates is provided with a sliding groove at its opposite end, and each heat-conducting module is provided with guide rails on both sides, with the two guide rails forming a longitudinal sliding fit with the two sliding grooves respectively.
[0011] Preferably, each of the heat-conducting modules includes two heat-conducting blocks, and the two guide rails are respectively disposed on opposite ends of the two heat-conducting blocks. Each of the opposite ends of the two heat-conducting blocks is provided with an opening, and the two openings form the positioning port.
[0012] Preferably, the temperature control unit includes: two cold plates, which are respectively disposed on opposite ends of the two clamping plates. Each cold plate has a plurality of coolant channels. One end of each cold plate has an inlet pipe that communicates with the inlet end of the plurality of coolant channels, and the other end has an outlet pipe that communicates with the outlet end of the plurality of coolant channels. The plurality of coolant channels on the two cold plates form the liquid cooling channel.
[0013] Preferably, the inlet pipe has a flow control device.
[0014] Preferably, a plurality of the coolant channels are arranged at equal intervals along the width direction of the cold plate.
[0015] Preferably, the temperature control device further includes: a main inlet pipe connected to the inlet pipe and a main outlet pipe connected to the outlet pipe.
[0016] The positive effects of the above technical solution compared with the existing technology are:
[0017] (1) This utility model positions the battery cell by placing it in the accommodating slot on the temperature control module and exchanges heat with the battery cell by the coolant in the liquid cooling channel. This solves the problem of the difference in heat dissipation conditions of the sample caused by the battery cell placement position, distance from the air outlet, and wind speed difference in the prior art, and ensures the consistency of the test results.
[0018] (2) This utility model adopts an adjustable groove length receiving groove design, which can be adapted to different models of cylindrical batteries (such as 18, 21, 46 series cylindrical batteries), realizing modular design, and the module structure can be flexibly selected according to the actual battery model;
[0019] (3) This utility model achieves heat conduction through effective contact between the heat conduction module and the side of the cell. The cold plate is provided with a flow channel for the inflow and outflow of coolant, which ensures uniform contact and flow of coolant inside the cold plate, thereby achieving environmental control and balanced cooling of the cylindrical battery surface.
[0020] (4) This utility model uses liquid cooling for temperature control, which is closer to the actual application scenario of power batteries (which usually uses liquid cooling), and the test conditions are more in line with the actual application scenario.
[0021] (5) This utility model is connected to the inlet end of the cold plate by a flow control device, which can control the cooling flow of a single cell and achieve precise control of the cooling effect between cells. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of a battery testing temperature control device according to the present invention;
[0023] Figure 2 This is a schematic diagram of the temperature control module of a battery testing temperature control device according to the present invention;
[0024] Figure 3 This is a schematic diagram of the structure of the cold plate of a battery testing temperature control device according to the present invention;
[0025] Figure 4 This is a schematic diagram of the clamping plate of a battery testing temperature control device according to the present invention;
[0026] Figure 5 This is a schematic diagram of the structure of the heat-conducting block of a battery testing temperature control device according to the present invention;
[0027] Figure 6 This is a schematic diagram showing the installation of the cold plate, clamping plate, and heat-conducting block in a battery testing and temperature control device according to this utility model.
[0028] In the attached diagram: 1. Temperature control module; 2. Inlet manifold; 3. Outlet manifold; 11. Receptacle; 12. Heat conduction module; 13. Clamping plate; 14. Cold plate; 15. Outlet pipe; 16. Inlet pipe; 17. Flow control device; 111. Positioning port; 121. Heat conduction block; 131. Slide groove; 141. Coolant flow channel; 1211. Guide rail; 1212. Opening. Detailed Implementation
[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not 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 this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] Figure 1 This is a schematic diagram of the structure of a battery testing temperature control device according to the present invention; Figure 2 This is a schematic diagram of the temperature control module of a battery testing temperature control device according to the present invention; Figure 3 This is a schematic diagram of the structure of the cold plate of a battery testing temperature control device according to the present invention; Figure 4 This is a schematic diagram of the clamping plate of a battery testing temperature control device according to the present invention; Figure 5 This is a schematic diagram of the structure of the heat-conducting block of a battery testing temperature control device according to the present invention; Figure 6 This is a schematic diagram showing the installation of the cold plate, clamping plate, and heat-conducting block in a battery testing temperature control device according to this utility model. Figure 1-6 As shown:
[0033] Example 1
[0034] A battery testing temperature control device includes at least one temperature control module 1. The temperature control module 1 has a receiving groove 11 for positioning and placing the battery. The length of the receiving groove 11 is adjustable. A liquid cooling channel is formed inside the temperature control module 1. Coolant is supplied to the liquid cooling channel to exchange heat with the battery in the receiving groove 11.
[0035] In this embodiment, the battery testing temperature control device positions and places the battery in the receiving slot 11 on the temperature control module 1, and the length of the receiving slot 11 can be adjusted to adapt to the testing needs of batteries of different sizes. The liquid cooling channel inside the temperature control module 1 supplies coolant to exchange heat with the battery in the receiving slot 11, thereby achieving precise control of the battery temperature.
[0036] Specifically, the receiving slot 11 can be either a circular slot or a square slot, depending on the shape of the battery.
[0037] The temperature control module 1 includes a heat-conducting part and a temperature control part. The liquid cooling channel is located inside the temperature control part, and the temperature control part is located outside the heat-conducting part. The receiving groove 11 is located at the center of the heat-conducting part. The heat-conducting part includes a plurality of heat-conducting modules 12, which are stacked longitudinally. Each heat-conducting module 12 is provided with a positioning port 111, and the receiving groove 11 is formed between the plurality of positioning ports 111.
[0038] Specifically, in the structural design of the temperature control module 1, the heat-conducting part is located at the center, used to directly contact the battery and conduct heat, while the temperature control part is located on the outside of the heat-conducting part and has a liquid cooling channel inside, forming a complete heat exchange system. The heat-conducting part is composed of several heat-conducting modules 12 stacked longitudinally, and the positioning ports 111 on each heat-conducting module 12 together form a receiving groove 11. The length of the receiving groove 11 is changed by the number of heat-conducting modules 12 stacked, thereby adapting to the testing of batteries of different sizes, so that the battery can be stably placed in the receiving groove 11 for testing.
[0039] The battery testing temperature control device also includes two clamping plates 13, which are arranged opposite to each other. Each heat-conducting module 12 has its two sides longitudinally slidably disposed on opposite ends of the two clamping plates 13, and the temperature control unit is disposed on the opposite ends of the two clamping plates 13. Each opposite end of the two clamping plates 13 is provided with a sliding groove 131, and each side of each heat-conducting module 12 is provided with a guide rail 1211, which forms a longitudinal sliding fit with the two sliding grooves 131. Each heat-conducting module 12 includes two heat-conducting blocks 121, with the two guide rails 1211 respectively disposed on the opposite ends of the two heat-conducting blocks 121. Each opposite end of the two heat-conducting blocks 121 has an opening 1212, which forms a positioning port 111.
[0040] Specifically, the design of the two clamping plates 13 allows the heat-conducting module 12 to slide and adjust in the longitudinal direction, thereby changing the length of the receiving slot 11 to adapt to the testing requirements of batteries of different lengths. The sliding groove 131 on the clamping plate 13 and the guide rail 1211 on the heat-conducting module 12 form a sliding fit structure, ensuring that the heat-conducting module 12 can move smoothly in the longitudinal direction to adjust the length of the receiving slot 11. Each heat-conducting module 12 consists of two heat-conducting blocks 121, and the openings 1212 on the two heat-conducting blocks 121 form a positioning port 111. Multiple positioning ports 111 are connected to form a complete receiving slot 11.
[0041] The temperature control unit includes two cold plates 14, which are respectively located on opposite ends of two clamping plates 13. Each cold plate 14 has a plurality of coolant channels 141. One end of each cold plate 14 has an inlet pipe 16 connected to the inlet end of the plurality of coolant channels 141, and the other end has an outlet pipe 15 connected to the outlet end of the plurality of coolant channels 141. The plurality of coolant channels 141 on the two cold plates 14 form a liquid cooling channel. A flow control device 17 is provided on the inlet pipe 16. The plurality of coolant channels 141 are equally spaced along the width direction of the cold plate 14. The temperature control device also includes an inlet manifold 2 connected to the inlet pipe 16 and an outlet manifold 3 connected to the outlet pipe 15.
[0042] Specifically, the two cold plates 14 of the temperature control unit are respectively located on the outer sides of the two clamping plates 13. The coolant channels 141 inside the cold plates 14 form a liquid cooling channel. The coolant enters the channels inside the cold plates 14 through the inlet pipe 16 and is discharged through the outlet pipe 15, forming a circulating cooling system. The flow control device 17 on the inlet pipe 16 can adjust the flow rate of the coolant, thereby controlling the cooling effect. The coolant channels 141 are evenly spaced in the width direction of the cold plates 14 to ensure uniform cooling effect. The main inlet pipe 2 and the main outlet pipe 3 connect the various inlet pipes 16 and outlet pipes 15 to form a complete coolant circulation system.
[0043] The battery testing temperature control device operates as follows: First, based on the size of the battery to be tested, the position of the heat-conducting module 12 on the clamping plate 13 is adjusted so that the length of the receiving groove 11 adapts to the battery size. Then, the battery is placed in the receiving groove 11, ensuring full contact between the battery and the heat-conducting part. Next, coolant is supplied to the liquid cooling channel through the inlet manifold 2. The coolant flows in the channel within the cold plate 14, exchanging heat with the heat-conducting part, thereby controlling the battery temperature. Finally, the coolant is discharged through the outlet pipe 15 and the outlet manifold 3, completing the circulation. By adjusting the flow control device 17 on the inlet pipe 16, the flow rate of the coolant can be precisely controlled, thereby achieving precise control of the battery temperature.
[0044] The heat-conducting part of the battery testing temperature control device is made of highly thermally conductive materials, such as aluminum alloy and copper alloy, to ensure rapid heat conduction. The cold plate 14 is made of corrosion-resistant, highly thermally conductive materials, such as stainless steel and aluminum alloy, and the internal coolant channels 141 are designed in a serpentine or parallel arrangement to ensure uniform cooling. The clamping plate 13 is made of high-strength, rigid materials, such as aluminum alloy and steel, to ensure the stability of the entire device structure. The contact surfaces of the guide rail 1211 and the slide 131 are treated with a low-friction coefficient material to ensure smooth sliding of the heat-conducting module 12.
[0045] The coolant can be water, ethylene glycol aqueous solution, or special coolant. The temperature range of the coolant is -20℃ to 60℃, and the flow rate range is 0.5L / min to 5L / min, which can be adjusted according to the test requirements.
[0046] The advantages of the battery testing temperature control device are as follows: Firstly, the adjustable accommodating tank 11 design adapts to the testing needs of batteries of different sizes, improving the device's versatility. Secondly, the liquid cooling channel facilitates heat exchange with the battery, achieving precise temperature control and improving testing accuracy and reliability. Furthermore, the device has a simple structure, is easy to operate, and has low maintenance costs, making it suitable for large-scale battery testing applications.
[0047] Example 2
[0048] A battery testing temperature control device includes at least one temperature control module 1. The temperature control module 1 has a receiving groove 11 for positioning and placing the battery. The length of the receiving groove 11 is adjustable. A liquid cooling channel is formed inside the temperature control module 1. Coolant is supplied to the liquid cooling channel to exchange heat with the battery in the receiving groove 11.
[0049] The temperature control module 1 includes a heat-conducting part and a temperature control part. The liquid cooling channel is located inside the temperature control part, and the temperature control part is located outside the heat-conducting part. The receiving groove 11 is located at the center of the heat-conducting part. The heat-conducting part includes a plurality of heat-conducting modules 12, which are stacked longitudinally. Each heat-conducting module 12 is provided with a positioning port 111, and the receiving groove 11 is formed between the plurality of positioning ports 111.
[0050] The battery testing temperature control device also includes two clamping plates 13, which are arranged opposite to each other. Each heat-conducting module 12 has its two sides longitudinally slidably disposed on opposite ends of the two clamping plates 13, and the temperature control unit is disposed on the opposite ends of the two clamping plates 13. Each opposite end of the two clamping plates 13 is provided with a sliding groove 131, and each side of each heat-conducting module 12 is provided with a guide rail 1211, which forms a longitudinal sliding fit with the two sliding grooves 131. Each heat-conducting module 12 includes two heat-conducting blocks 121, with the two guide rails 1211 respectively disposed on the opposite ends of the two heat-conducting blocks 121. Each opposite end of the two heat-conducting blocks 121 has an opening 1212, which forms a positioning port 111.
[0051] In this embodiment, the heat-conducting block 121 is made of copper, which has a higher thermal conductivity than the aluminum alloy material in Embodiment 1, enabling it to conduct heat more quickly and improve heat exchange efficiency. Meanwhile, the contact surfaces of the slide groove 131 and the guide rail 1211 are treated with polytetrafluoroethylene (PTFE) material, further reducing the coefficient of friction and making the sliding adjustment of the heat-conducting module 12 smoother and more stable.
[0052] Example 3
[0053] A battery testing temperature control device includes at least one temperature control module 1. The temperature control module 1 has a receiving groove 11 for positioning and placing the battery. The length of the receiving groove 11 is adjustable. A liquid cooling channel is formed inside the temperature control module 1. Coolant is supplied to the liquid cooling channel to exchange heat with the battery in the receiving groove 11.
[0054] The temperature control module 1 includes a heat-conducting part and a temperature control part. The liquid cooling channel is located inside the temperature control part, and the temperature control part is located outside the heat-conducting part. The receiving groove 11 is located at the center of the heat-conducting part. The heat-conducting part includes a plurality of heat-conducting modules 12, which are stacked longitudinally. Each heat-conducting module 12 is provided with a positioning port 111, and the receiving groove 11 is formed between the plurality of positioning ports 111.
[0055] The battery testing temperature control device also includes two clamping plates 13, which are arranged opposite to each other. Each heat conduction module 12 is longitudinally slidably disposed on both sides of the opposite ends of the two clamping plates 13, and the temperature control part is disposed on the opposite ends of the two clamping plates 13.
[0056] The temperature control unit includes two cold plates 14, which are respectively located on opposite ends of two clamping plates 13. Each cold plate 14 has a plurality of coolant channels 141. One end of each cold plate 14 has an inlet pipe 16 connected to the inlet end of the plurality of coolant channels 141, and the other end has an outlet pipe 15 connected to the outlet end of the plurality of coolant channels 141. The plurality of coolant channels 141 on the two cold plates 14 form a liquid cooling channel. A flow control device 17 is provided on the inlet pipe 16. The plurality of coolant channels 141 are equally spaced along the width direction of the cold plate 14. The temperature control device also includes an inlet manifold 2 connected to the inlet pipe 16 and an outlet manifold 3 connected to the outlet pipe 15.
[0057] In this embodiment, the coolant flow channel 141 adopts a spiral design, which differs from the serpentine or parallel arrangement design in Embodiment 1. The spiral design increases the flow path of the coolant within the cold plate 14, thereby increasing the heat exchange area and improving cooling efficiency. Simultaneously, the flow control device 17 employs an electronic flow control valve, which can precisely adjust the coolant flow rate through an electronic control system, achieving more accurate temperature control.
[0058] It should be noted that Embodiment 1, Embodiment 2, and Embodiment 3 are all types of battery testing temperature control devices.
[0059] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A battery testing temperature control device, characterized in that, include: At least one temperature control module has a receiving slot for positioning and placing a battery. The length of the receiving slot is adjustable. A liquid cooling channel is formed inside the temperature control module, and coolant is supplied to the liquid cooling channel to exchange heat with the battery in the receiving slot.
2. The battery testing temperature control device according to claim 1, characterized in that, The temperature control module includes a heat-conducting part and a temperature control part. The liquid cooling channel is located inside the temperature control part, and the temperature control part is located outside the heat-conducting part. The receiving groove is located at the center of the heat-conducting part.
3. The battery testing temperature control device according to claim 2, characterized in that, The heat-conducting part includes: a plurality of heat-conducting modules, which are stacked longitudinally, and each heat-conducting module is provided with a positioning port, and the accommodating groove is formed between the plurality of positioning ports.
4. The battery testing temperature control device according to claim 3, characterized in that, Also includes: Two clamping plates are arranged opposite each other. The two sides of each heat-conducting module are longitudinally slidably disposed on opposite ends of the two clamping plates, and the temperature control unit is disposed on opposite ends of the two clamping plates.
5. The battery testing temperature control device according to claim 4, characterized in that, Both clamping plates are provided with sliding grooves at their opposite ends, and each heat-conducting module is provided with guide rails on both sides. The two guide rails and the two sliding grooves respectively form a longitudinal sliding fit.
6. The battery testing temperature control device according to claim 5, characterized in that, Each heat-conducting module includes two heat-conducting blocks, and two guide rails are respectively disposed on opposite ends of the two heat-conducting blocks. Openings are provided on opposite ends of the two heat-conducting blocks, and the two openings form the positioning port.
7. The battery testing temperature control device according to claim 4, characterized in that, The temperature control unit includes two cold plates, which are respectively disposed on opposite ends of the two clamping plates. Each cold plate has a plurality of coolant channels. One end of each cold plate has an inlet pipe that communicates with the inlet end of the plurality of coolant channels, and the other end has an outlet pipe that communicates with the outlet end of the plurality of coolant channels. The plurality of coolant channels on the two cold plates form the liquid cooling channel.
8. The battery testing temperature control device according to claim 7, characterized in that, The inlet pipe is equipped with a flow control device.
9. The battery testing temperature control device according to claim 7, characterized in that, Several of the coolant channels are equally spaced along the width direction of the cold plate.
10. The battery testing temperature control device according to claim 7, characterized in that, The temperature control device further includes: a main inlet pipe connected to the inlet pipe and a main outlet pipe connected to the outlet pipe.