Lithium battery contact type thermal shock test equipment
The lithium battery contact thermal shock testing equipment utilizes spring rod clamps and rubber sealing gaskets to ensure uniform heating of the lithium battery, solving the problem of uneven heat density in existing equipment and improving testing accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-04-03
AI Technical Summary
In existing lithium battery testing equipment, the uneven heating density of the battery casing leads to large differences in test results. Furthermore, uneven winding of the heating wire affects the accuracy of the test and results in low efficiency.
The lithium battery contact thermal shock test equipment uses a spring rod to hold the battery in place, and combines a heating film and a rubber sealing gasket to ensure uniform heat transfer. The temperature is regulated by a digitally displayed temperature heater, and the housing and cover are fixed with connecting buckles and heat insulation pads.
This achieves uniform heating of lithium batteries, improves the accuracy and efficiency of test data, ensures no heat leakage, and enhances the reliability of testing equipment.
Smart Images
Figure CN224081774U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium battery testing technology, and in particular to a lithium battery contact thermal shock testing device. Background Technology
[0002] Chemical power sources, as an important method of energy storage and conversion, can not only store electrical energy in the form of chemical energy, but also convert chemical energy into electrical energy for energy release. In recent years, due to their increasingly wide range of applications, chemical power sources have become an indispensable power source in people's daily lives, and lithium-ion batteries are one such example.
[0003] Lithium batteries are batteries that contain lithium (including metallic lithium, lithium alloys, lithium ions, and lithium polymers) in their electrochemical systems. With the widespread application of lithium batteries for energy storage, the market demand and quality requirements for lithium batteries are also rapidly increasing.
[0004] In the development of lithium-ion battery manufacturing, different countries have different certification and testing standards. Currently, India's certification and testing uses a method of winding heating wires for testing and verification. The drawback of this testing method is that the heating wires are not wound evenly, and the heating density of the battery casing is uneven, which leads to large differences in the lithium battery test results. Sometimes it can even affect the accuracy of the test results. In addition, only one battery can be tested at a time, and the heating wire is a disposable tool with low efficiency. Therefore, a lithium battery contact thermal shock testing device is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a lithium battery contact thermal shock testing device, which aims to improve the problem of uneven heat density of the battery casing and large differences in test results in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A lithium battery contact thermal shock testing device includes a housing and a cover. A wire groove is fixedly connected to the outside of the housing, and an electric wire is fixedly connected to the inside of the wire groove. One end of the electric wire is fixedly connected to a power adapter. A fixing block is fixedly connected to the inside of the housing, and a spring rod is fixedly connected to the inside of the fixing block. A clamping block is fixedly connected to the end of the spring rod. A heating film is fixedly connected to the inside of the housing. A fixing assembly is fixedly connected to the top of the housing for connecting the housing and the cover.
[0008] As a further description of the above technical solution:
[0009] The fixing component includes a connecting buckle, which is fixedly connected to the top of the housing. The inside of the cover has a buckle groove, and the connecting buckle engages with the buckle groove.
[0010] As a further description of the above technical solution:
[0011] A heat-insulating gasket is fixedly connected inside the cover, and a rubber sealing gasket is fixedly connected inside the shell.
[0012] As a further description of the above technical solution:
[0013] The outer part of the heating film is placed inside the clamping block to fix and hold the battery case.
[0014] As a further description of the above technical solution:
[0015] A lithium battery is slidably connected inside the housing, and the surface of the lithium battery is in contact with the heating film for thermal shock testing.
[0016] As a further description of the above technical solution:
[0017] An insulating patch is fixedly connected inside the housing, and the insulating patch is fixedly connected inside to the outside of the heating film.
[0018] As a further description of the above technical solution:
[0019] A digital display temperature heater is fixedly connected to the left side of the housing. A button is slidably connected inside the digital display temperature heater, and a temperature display screen is fixedly connected inside the digital display temperature heater.
[0020] As a further description of the above technical solution:
[0021] A heat dissipation shell is fixedly connected to the bottom of the housing for heat dissipation during testing.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the lithium battery and heating film are fixed by a clamping block driven by a spring rod to prevent shaking during testing, which would cause uneven heating and affect the accuracy of the data. The temperature is adjusted by a heater with buttons and a digital display, which is convenient for recording.
[0024] 2. In this utility model, the connecting buckle is inserted into the buckle groove to connect and fix the shell and the cover. The rubber sealing gasket is used to ensure the uniformity of heating of the lithium battery. The rubber sealing gasket can effectively prevent heat from leaking out through the connection part and ensure that the lithium battery can receive accurate thermal shock energy. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of a lithium battery contact thermal shock testing device proposed in this utility model.
[0026] Figure 2 This is a schematic diagram of the heating film structure of a lithium battery contact thermal shock testing device proposed in this utility model.
[0027] Figure 3 This is a schematic diagram of the spring rod structure of a lithium battery contact thermal shock testing device proposed in this utility model.
[0028] Figure 4 This is a schematic diagram of the heat dissipation shell of a lithium battery contact thermal shock testing device proposed in this utility model.
[0029] Figure 5 This is a schematic diagram of the buckle structure of a lithium battery contact thermal shock testing device proposed in this utility model;
[0030] Figure 6 This is a schematic diagram of the cover of a lithium battery contact thermal shock testing device proposed in this utility model.
[0031] Legend:
[0032] 1. Housing; 2. Cable tray; 3. Wire; 4. Power adapter; 5. Temperature display screen; 6. Cover; 7. Button; 8. Lithium battery; 9. Fixing block; 10. Spring rod; 11. Rubber sealing gasket; 12. Heating film; 13. Clamping block; 14. Heat dissipation shell; 15. Connecting buckle; 16. Heat insulation pad; 17. Buckle groove; 18. Digital display temperature heater; 19. Insulating patch. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Reference Figures 1-3This utility model provides an embodiment of a lithium battery contact thermal shock testing device, comprising a housing 1 and a cover 6. A wire groove 2 is fixedly connected to the outside of the housing 1, and a wire 3 is fixedly connected to the inside of the wire groove 2. One end of the wire 3 is fixedly connected to a power adapter 4. During testing, the power adapter 4 converts the voltage and current suitable for the operation of the testing device to provide stable and reliable power to the various components of the testing device. A fixing block 9 is fixedly connected inside the housing 1, and a spring rod 10 is fixedly connected inside the fixing block 9. A clamping block 13 is fixedly connected to the end of the spring rod 10, which drives the clamping block 13 to fix the battery housing. A heating film 12 is fixedly connected inside the housing 1, and a fixing assembly is fixedly connected to the top of the housing 1 for connecting the housing 1 and the cover 6. The heating film 12 is placed outside the clamping block 13, which fixes the lithium battery 8 and the heating film 12 to prevent shaking during testing, which could lead to uneven heating and affect the accuracy of the data. The clamping block 13 is used to fix and hold the battery housing. A lithium battery 8 is slidably connected inside the housing 1, and the surface of the lithium battery 8 is in contact with the heating film 12 for thermal shock testing. An insulating patch 19 is fixedly connected inside the housing 1, and the insulating patch 19 is fixedly connected to the outside of the heating film 12. The insulating patch 19 has heat insulation properties, enabling precise temperature control of the lithium battery 8, which helps ensure that the thermal shock experienced by the lithium battery 8 comes only from a preset heat source, thus improving the accuracy of the test. A digital display temperature heater 18 is fixedly connected to the left side of the housing 1. A button 7 is slidably connected inside the digital display temperature heater 18, and a temperature display screen 5 is fixedly connected inside the digital display temperature heater 18.
[0035] Reference Figures 4-6 The fixing assembly includes a connecting buckle 15, which is fixedly connected to the top of the housing 1. A buckle groove 17 is provided inside the cover 6, and the connecting buckle 15 engages with the buckle groove 17. When the cover 6 is placed on top of the housing 1 and moved downwards, the connecting buckle 15 engages with the buckle groove 17, thus connecting and fixing the housing 1 and the cover 6. A heat insulation gasket 16 is fixedly connected inside the cover 6, and a rubber sealing gasket 11 is fixedly connected inside the housing 1. The rubber sealing gasket 11 effectively prevents heat from leaking out through the connection points, ensuring that the lithium battery 8 receives accurate thermal shock energy. A heat dissipation shell 14 is fixedly connected to the bottom of the housing 1 for heat dissipation during testing.
[0036] Working principle: During the thermal shock test, the lithium battery 8 is placed inside the heating film 12. The spring rod 10 drives the clamp 13 to fix the lithium battery 8 and the heating film 12, preventing them from shaking during the test, which would cause uneven heating and affect the accuracy of the data. The power adapter 4 is connected to the power supply. Under the action of the current, the heating film 12 heats up. The temperature is adjusted by the button 7 and the digital display temperature heater 18 for easy recording.
[0037] During the thermal shock test, the cover 6 is placed on top of the housing 1 and subjected to downward force. The connecting buckle 15 is inserted into the buckle groove 17 to connect and fix the housing 1 and the cover 6. The rubber sealing gasket 11 is used to ensure the uniformity of the heating of the lithium battery 8. The rubber sealing gasket 11 can effectively prevent the heat inside the test equipment from leaking out through the connection part, ensuring that the lithium battery 8 can receive accurate thermal shock energy.
[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A testing device for contact thermal shock of lithium batteries, comprising a housing (1) and a cover (6), characterized in that: The outer side of the housing (1) is fixedly connected to a wire groove (2), the inside of the wire groove (2) is fixedly connected to a wire (3), one end of the wire (3) is fixedly connected to a power adapter (4), the inside of the housing (1) is fixedly connected to a fixing block (9), the inside of the fixing block (9) is fixedly connected to a spring rod (10), the end of the spring rod (10) is fixedly connected to a clamping block (13), the inside of the housing (1) is fixedly connected to a heating film (12), and the top of the housing (1) is fixedly connected to a fixing assembly for connecting the housing (1) and the cover (6).
2. The lithium battery contact thermal shock testing device according to claim 1, characterized in that: The fixing component includes a connecting buckle (15), which is fixedly connected to the top of the housing (1). The cover (6) has a buckle groove (17) inside, and the connecting buckle (15) engages with the buckle groove (17).
3. The lithium battery contact thermal shock testing device according to claim 1, characterized in that: A heat insulation gasket (16) is fixedly connected inside the cover (6), and a rubber sealing gasket (11) is fixedly connected inside the shell (1).
4. The lithium battery contact thermal shock testing device according to claim 1, characterized in that: The heating film (12) is placed on the outside of the clamp (13) to fix and hold the battery case.
5. The lithium battery contact thermal shock testing device according to claim 1, characterized in that: A lithium battery (8) is slidably connected inside the housing (1), and the surface of the lithium battery (8) is in contact with the heating film (12) for thermal shock testing.
6. The lithium battery contact thermal shock testing device according to claim 1, characterized in that: An insulating patch (19) is fixedly connected inside the housing (1), and the interior of the insulating patch (19) is fixedly connected to the exterior of the heating film (12).
7. The lithium battery contact thermal shock testing device according to claim 1, characterized in that: A digital display temperature heater (18) is fixedly connected to the left side of the housing (1), a button (7) is slidably connected inside the digital display temperature heater (18), and a temperature display screen (5) is fixedly connected inside the digital display temperature heater (18).
8. The lithium battery contact thermal shock testing device according to claim 7, characterized in that: The bottom of the housing (1) is fixedly connected to a heat dissipation shell (14) for heat dissipation during testing.