Lithium ion battery module cycle test device with liquid cooling plate
By designing a cycle test device for lithium-ion battery modules with liquid-cooled plates, the problem of untimely heat dissipation of lithium-ion battery modules is solved, and the cycle test is realized that simulates actual application scenarios is realized, ensuring the safety and life of the product, and solving the problem of the problem of the heat dissipation of the lithium-ion battery modules is not timely. Testing problems of manufacturers.
Patent Information
- Application Number
- CN202420084423.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-11
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-01-11
AI Technical Summary
During use, due to untimely heat dissipation during the lithium-ion battery module, the internal temperature is uneven and the local temperature rise is too high, which shortens the battery life and increases consumption costs. There are huge hidden dangers in not conducting sufficient tests before leaving the factory.
Design a lithium-ion battery module circulation test device with liquid-cooled plate, including support frame, liquid-cooled plate, test cable, liquid inlet pipeline, liquid outlet pipeline, temperature probe and clamp, to simulate lithium in actual application scenarios Cycling test of ion battery module ensures temperature detection and control of coolant.
It realizes testing that simulates actual application scenarios when verifying the cycle performance of lithium-ion battery modules. It is simple to operate and complete functions, and solves the testing problems of lithium-ion battery module manufacturers and ensures product safety and life.
Smart Images
Figure CN222232628U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lithium ion battery module cycle testing, in particular to a lithium ion battery module cycle testing device with a liquid cooling plate. Background Art
[0002] Lithium-ion battery modules have important applications in various fields of the national economy due to their high energy density, long cycle life, high safety and fast charging rate. In actual use, according to different requirements for the power of lithium-ion batteries, multiple lithium-ion batteries can be assembled in series or parallel to meet different power requirements. The large-scale power battery makes its surface area to volume ratio relatively reduced. The vehicle will generate high heat during use or charging. Excessive heat will affect the energy consumption and safety of the car. The heat-related issues of lithium-ion battery modules are key factors in determining their energy, power, safety, life and cost of use. If the heat inside the battery module cannot be dissipated in time, it is more likely to have problems such as uneven internal temperature and excessive local temperature rise, which will further accelerate the attenuation of the battery module, shorten the battery life and increase the user's consumption cost. The battery packs used by consumers usually use liquid cooling plates to circulate the coolant quickly to remove excess heat to ensure the safe operation of the product; lithium battery modules are not fully tested before leaving the factory, which will cause huge hidden dangers at the consumer end. Utility Model Content
[0003] The purpose of the utility model is to overcome the above technical deficiencies, to provide a lithium-ion battery module cycle test device with a liquid cooling plate, and to solve the technical problems in the background technology.
[0004] In order to achieve the above technical objectives, the technical solution of the utility model provides a lithium-ion battery module cycle test device with a liquid cooling plate, including a support frame, the support frame is provided with at least one storage space from top to bottom, a liquid cooling plate is installed in each storage space, the liquid cooling plate is a hollow plate body inside, a test cable is also installed in each storage space, a liquid inlet pipeline connected to the inside of the liquid cooling plate is provided on one side of the liquid cooling plate, and a liquid outlet pipeline connected to the inside of the liquid cooling plate is provided on the other side of the liquid cooling plate.
[0005] Furthermore, a first temperature probe for detecting the temperature of the coolant in the liquid inlet pipeline is provided on the liquid inlet pipeline, and a second temperature probe for detecting the temperature of the coolant in the liquid outlet pipeline is provided on the liquid outlet pipeline.
[0006] Furthermore, the liquid inlet pipeline includes a first main pipe and at least one first branch pipe arranged on the first main pipe, and one side of each liquid cooling plate is connected to the corresponding first branch pipe, and the liquid outlet pipeline includes a second main pipe and at least one second branch pipe arranged on the second main pipe, and the other side of each liquid cooling plate is connected to the corresponding second branch pipe.
[0007] Furthermore, a water inlet switch is provided on the liquid inlet pipeline.
[0008] Furthermore, a clamp for fixing the test cable is installed in each storage space.
[0009] Furthermore, the clamp includes a base plate and a pressure plate arranged above the base plate, a first groove is provided at the top of the base plate, a second groove is provided at the bottom of the pressure plate, a first clamping block is provided on the other side of the base plate, a fixed plate is provided at the bottom of the other side of the pressure plate, and a second clamping block matching with the first clamping block is provided on one side of the fixed plate.
[0010] The beneficial effects of the utility model include: the utility model provides a lithium-ion battery module cycle test device with a liquid cooling plate, which can fully simulate the actual application scenario when verifying the cycle performance of the lithium-ion battery module, and perform cycle tests on the lithium-ion battery module under liquid cooling conditions. It is simple to operate and has complete functions, and can solve the testing problems of lithium-ion battery module manufacturers. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic structural diagram of a lithium-ion battery module cycle test device with a liquid cooling plate according to an embodiment of the utility model;
[0012] Figure 2 yes Figure 1 A magnified image of point A;
[0013] Figure 3 yes Figure 2 The enlarged view of point B;
[0014] In the figure: 1. support frame; 11. storage space; 2. liquid cooling plate; 3. test cable; 4. liquid inlet pipeline; 41. first main pipe; 42. first branch pipe; 5. liquid outlet pipeline; 51. second main pipe; second branch pipe; 6. first temperature probe; 7. second temperature probe; 8. water inlet switch; 9. clamp; 91. bottom plate; 911. first groove; 912. first clamp block; 92. pressure plate; 921. second groove; 922. fixing plate; 923. second clamp block. DETAILED DESCRIPTION
[0015] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0016] The present invention provides a lithium-ion battery module cycle test device with a liquid cooling plate. Figure 1As shown, it includes a support frame 1, and the support frame 1 is provided with at least one storage space 11 from top to bottom. A liquid cooling plate 2 is installed in each storage space 11, and the liquid cooling plate 2 is a hollow plate body inside. A test cable 3 is also installed in each storage space 11. The test cable 3 is connected to the test device and can test the performance of the battery. A liquid inlet pipeline 4 connected to the inside of the liquid cooling plate 2 is provided on one side of the liquid cooling plate 2, and a liquid outlet pipeline 5 connected to the inside of the liquid cooling plate 2 is provided on the other side of the liquid cooling plate 2.
[0017] In this embodiment, the liquid inlet pipeline 4 is provided with a first temperature probe 6 for detecting the temperature of the coolant in the liquid inlet pipeline 4, and the liquid outlet pipeline 5 is provided with a second temperature probe 7 for detecting the temperature of the coolant in the liquid outlet pipeline 5. The first temperature probe 6 and the second temperature probe 7 can be used to detect the temperature of the coolant in the liquid inlet pipeline 4 and the liquid outlet pipeline 5 respectively, so that the tester can accurately know the temperature of the coolant entering the liquid cooling plate 2 or the temperature of the coolant discharged from the liquid cooling plate 2, so that the temperature of the coolant entering the liquid cooling plate 2 can be conveniently controlled according to actual test requirements.
[0018] In this embodiment, a water inlet switch 8 is provided on the liquid inlet pipeline 4, and the water inlet switch 8 can control the coolant to enter the liquid cooling plate 2 according to the needs of actual testing.
[0019] In this embodiment, the liquid inlet pipeline 4 includes a first main pipe 41 and at least one first branch pipe 42 arranged on the first main pipe 41, and one side of each liquid cooling plate 2 is connected to the corresponding first branch pipe 42, and the liquid outlet pipeline 5 includes a first main pipe and at least one second branch pipe 52 arranged on the second main pipe 51, and the other side of each liquid cooling plate 2 is connected to the corresponding second branch pipe 52.
[0020] It should be noted that the first temperature probe 6 is arranged at the liquid inlet end of the first main pipe 41 , the second temperature probe 7 is arranged at the liquid discharge end of the second main pipe 51 , and each first branch pipe 42 is provided with a water inlet switch 8 .
[0021] It should be noted that the top of one side of the liquid cooling plate 2 is connected to the first branch pipe 42 , and the top of the other side of the liquid cooling plate 2 is connected to the second branch pipe 52 . This design can ensure that the coolant can fill the entire liquid cooling plate 2 .
[0022] In this embodiment, Figure 2-3As shown, a clamp 9 for fixing the test cable 3 is installed in each storage space 11, which can prevent the test cable 3 from moving randomly during the test, thereby facilitating the test. At the same time, in order to facilitate the replacement of the test cable 3 when the test cable is damaged, the clamp 9 in this embodiment preferably includes a bottom plate 91 and a pressing plate 92 arranged above the bottom plate 91, a first groove 911 is arranged on the top of the bottom plate 91, a second groove 921 is arranged at the bottom of the pressing plate 92, the first groove 911 and the second groove 921 are both arc-shaped structures, a first clamping block 912 is arranged on the other side of the bottom plate 91, a fixing plate 922 is arranged at the bottom of the other side of the pressing plate 92, and one side of the fixing plate 922 is provided with a first clamping block 912 12 cooperates with the second clamping block 923. When the test cable 3 is fixed, the test cable 3 is placed in the first groove 911, and the pressure plate 92 is pressed on the bottom plate 91. When the pressure plate 92 is pressed on the bottom plate 91, the second clamping block 923 is clamped under the first clamping block 912 to fix the pressure plate 92 on the top of the bottom plate 91, and the test cable 3 is fixed inside the first groove 911 and the second groove 921. When the test cable 3 is removed, the fixing plate 922 is pried to separate the first clamping block 912 from the second clamping block 923, and the pressure plate 92 is moved open, so that the test cable 3 can be removed. The operation is convenient, so that the test cable 3 can be conveniently replaced when the test cable is damaged.
[0023] Specific principle: During the test, the lithium-ion battery module is placed on the liquid cooling plate 2 and the test cable 3 is connected to the lithium-ion battery module. At the same time, the coolant can enter the liquid cooling plate 2 through the liquid inlet pipe 4 and then be discharged through the liquid outlet pipe 5. When verifying the cycle performance of the lithium-ion battery module, the actual application scenario can be fully simulated, and the lithium-ion battery module can be cycle tested under liquid cooling conditions. It is simple to operate and has complete functions, which can solve the testing problems of lithium-ion battery module manufacturers.
[0024] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.
Claims
1. A lithium-ion battery module cycle test device with a liquid cooling plate, characterized in that: The invention comprises a support frame (1), wherein the support frame (1) is provided with at least one storage space (11) from top to bottom, wherein a liquid cooling plate (2) is installed in each storage space (11), wherein the liquid cooling plate (2) is a plate body with a hollow interior, wherein a test cable (3) is also installed in each storage space (11), wherein one side of the liquid cooling plate (2) is provided with a liquid inlet pipeline (4) communicating with the interior of the liquid cooling plate (2), and the other side of the liquid cooling plate (2) is provided with a liquid outlet pipeline (5) communicating with the interior of the liquid cooling plate (2).
2. A lithium-ion battery module cycle test device with a liquid cooling plate according to claim 1, characterized in that: The liquid inlet pipeline (4) is provided with a first temperature probe (6) for detecting the temperature of the coolant in the liquid inlet pipeline (4), and the liquid outlet pipeline (5) is provided with a second temperature probe (7) for detecting the temperature of the coolant in the liquid outlet pipeline (5).
3. A lithium-ion battery module cycle test device with a liquid cooling plate according to claim 1, characterized in that: The liquid inlet pipeline (4) comprises a first main pipe (41) and at least one first branch pipe (42) arranged on the first main pipe (41), and one side of each of the liquid cooling plates (2) is respectively connected to the corresponding first branch pipe (42); the liquid outlet pipeline (5) comprises a second main pipe (51) and at least one second branch pipe (52) arranged on the second main pipe (51), and the other side of each of the liquid cooling plates (2) is respectively connected to the corresponding second branch pipe (52).
4. A lithium-ion battery module cycle test device with a liquid cooling plate according to claim 1, characterized in that: The liquid inlet pipeline (4) is provided with a water inlet switch (8).
5. A lithium-ion battery module cycle test device with a liquid cooling plate according to claim 1, characterized in that: A clamp (9) for fixing a test cable (3) is installed in each storage space (11).
6. A lithium-ion battery module cycle test device with a liquid cooling plate according to claim 5, characterized in that: The clamp (9) comprises a base plate (91) and a pressure plate (92) arranged above the base plate (91); a first groove (911) is arranged at the top of the base plate (91); a second groove (921) is arranged at the bottom of the pressure plate (92); a first clamping block (912) is arranged at the other side of the base plate (91); a fixing plate (922) is arranged at the bottom of the other side of the pressure plate (92); and a second clamping block (923) matching with the first clamping block (912) is arranged at one side of the fixing plate (922).