Battery testing device

Abstract

The utility model provides a battery testing device which comprises a box body and a controller, a first air inlet pipe opening, a first exhaust pipe opening and a first testing wire hole are formed in the box body, a testing cabinet is arranged in the box body, and the testing cabinet is composed of a plurality of testing compartments. Each testing compartment is provided with a second air inlet pipe opening, a second air outlet pipe opening and a second testing line hole. Each test compartment is provided with a test compartment door, the test compartment door is provided with an adjustable door lock structure, the adjustable door lock structure comprises a handle and a spring bolt, the handle is connected with the spring bolt through a linkage mechanism, and the test compartment door frame is provided with a lock catch assembly; an elastic sealing structure is arranged between the test compartment door leaf and the test compartment door frame; the controller is used for controlling work of the heating device and opening and closing of the valve. According to the invention, the sealing performance of the compartment is enhanced, harmful gas and fragments are prevented from leaking out, and the damage to other batteries caused by explosion when a single battery is tested is effectively reduced.

Description

Technical Field

[0001] This utility model belongs to the field of battery testing technology, and specifically relates to a battery testing device. Background Technology

[0002] In the fields of battery research and development, production, and quality inspection, battery testing equipment is indispensable. It is used to simulate the working state of batteries under different environmental conditions to evaluate their performance, safety, and lifespan. Traditional battery testing equipment designs often adopt a single-chamber structure, which can meet basic testing needs, but it is inadequate when facing large-scale battery testing or when a strictly controlled testing environment is required.

[0003] To address the aforementioned issues, patent application number "202322485728.5" discloses a battery constant temperature test chamber. While this device discloses a structure with partitions, limiting plates, and fixing plates, enabling simultaneous testing of multiple battery groups, the lack of independent sealed spaces means that in the event of a battery explosion or leakage, all batteries are placed within the same chamber, potentially causing collateral damage to other battery devices. Furthermore, the partition and limiting plate structure in this patent is relatively unstable; an explosion could cause the internal partition structure to loosen or shift, affecting the safety and accuracy of other batteries. Additionally, existing test chambers have limitations in energy usage. Due to the single chamber structure, each test requires filling the entire chamber with inert gas, resulting in slow response times and high operating costs. Moreover, independent experimental conditions cannot be set for multi-battery testing.

[0004] Therefore, there is still a need to further improve the existing technology. Summary of the Invention

[0005] The purpose of this invention is to provide a battery testing device that can efficiently test multiple batteries in parallel, while improving the stability and safety of the testing environment for a single battery and reducing the damage from battery explosions.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A battery testing device includes a housing and a controller. The housing has a first air inlet, a first exhaust outlet, and a first test lead hole. A test cabinet is housed inside the housing, and the test cabinet is composed of multiple integrated test compartments. Each test compartment has a second air inlet, a second exhaust outlet, and a second test lead hole. The second air inlet and the first air inlet are sealed together via an air inlet branch pipe, and the second exhaust outlet and the first exhaust outlet are sealed together via an exhaust branch pipe. Valves are provided on the air inlet branch pipe and the exhaust branch pipe. Each test compartment is equipped with a heating device; each test compartment also has a test compartment door, which is equipped with an adjustable door lock structure. The adjustable door lock structure includes a handle, a latch, and a latch assembly. The handle is located on the outside of the test compartment door, the latch is located on the inside of the test compartment door, the handle and the latch are connected by a linkage mechanism, and the latch assembly is located on the test compartment door frame; an elastic sealing structure is provided between the test compartment door and the test compartment door frame; the controller is used to control the operation of the heating device and the opening and closing of the valves.

[0008] Preferably, the locking assembly includes a screw and an adjusting buckle. One end of the screw is disposed on the test compartment door frame, and the other end points to the test compartment door leaf. The outer diameter of the screw is provided with a threaded structure. The adjusting buckle is sleeved on the screw. The center position of the adjusting buckle is provided with a threaded hole adapted to the thread. The adjusting buckle and the screw are rotatably connected by threaded engagement.

[0009] Preferably, each test chamber is equipped with a pressure sensor and a temperature sensor, and the output terminals of the pressure sensor and the temperature sensor are connected to the input terminal of the controller.

[0010] Preferably, the first air inlet is connected to the gas storage tank via the main air inlet, and the first exhaust outlet is connected to the waste gas recovery device via the main exhaust outlet. The waste gas recovery device includes a vacuum pump and a waste gas recovery tank. The air inlet of the vacuum pump is connected to the end of the main exhaust pipe, and the exhaust outlet of the vacuum pump is connected to the air inlet of the waste gas recovery tank.

[0011] Preferably, the elastic sealing structure between the test compartment door leaf and the test compartment door frame is a silicone rubber door seal ring.

[0012] Preferably, a rubber ring is provided inside the second test line hole.

[0013] Preferably, the cabinet of the test cabinet is made of aluminum.

[0014] Preferably, the outer shell of the enclosure is made of cold-rolled steel plate with electrostatic powder coating, and the door of the enclosure is made of high-temperature resistant double-layer tempered glass.

[0015] Preferably, the housing is also equipped with a display, which is electrically connected to the controller.

[0016] Compared with existing technologies, this application integrates multiple test compartments into a single test cabinet, resulting in improved cabinet structural stability. The inclusion of multiple independent test compartments, each with its own door, effectively reduces the risk of damage from explosions during individual battery testing. The combination of adjustable door locks and elastic sealing structures further enhances the sealing performance of the test compartments, preventing the leakage of harmful gases and debris. Furthermore, by equipping each test compartment with an independent heating device, air inlet, and exhaust outlet, the test compartments can quickly reach the required testing environment, improving testing efficiency. This also reduces the amount of inert gas used, saving gas energy and lowering operating costs. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall internal structure of the battery testing device provided by this utility model;

[0018] Figure 2 A front view of the battery testing device provided by this utility model;

[0019] Figure 3 Rear view of the battery testing device provided by this utility model;

[0020] Figure 4 This is a schematic diagram of the adjustable door lock structure provided by this utility model;

[0021] Figure 5 This is a schematic diagram of the interior of the test compartment provided by this utility model;

[0022] In the diagram: 1. Housing, 2. Test cabinet, 3. Test compartment, 4. First air inlet, 5. First exhaust outlet, 6. First test line hole, 7. Test compartment door, 8. Test compartment door frame, 9. Handle, 10. Locking tongue, 11. Screw, 12. Adjustment buckle, 13. Display, 14. Second air inlet, 15. Second exhaust outlet, 16. Second test line hole, 17. Temperature sensor, 18. Pressure sensor. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The terms such as "upper," "lower," "left," and "right" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of the present invention.

[0024] The present invention provides a battery testing device, the structure of which is as follows: Figure 1-3 As shown, the test chamber includes a housing 1 and a controller. The housing 1 is equipped with a first air inlet 4 and a first exhaust outlet 5. The first air inlet 4 is connected to a gas storage tank via a main air inlet pipe to create a stable low-oxygen or inert gas environment within the test chamber, reducing the risk of combustion and explosion. The first exhaust outlet 5 is connected to a waste gas recovery device via a main exhaust pipe to discharge hazardous powders and gases generated during battery combustion and explosion. The waste gas recovery device includes a vacuum pump and a waste gas recovery tank. The inlet of the vacuum pump is connected to the end of the main exhaust pipe, and the outlet of the vacuum pump is connected to the inlet of the waste gas recovery tank.

[0025] The housing 1 houses a test cabinet 2, which comprises multiple test compartments 3. Each test compartment 3 is equipped with a second air inlet 14 and a second exhaust outlet 15. The second air inlet 14 is sealed to the first air inlet 4 via an air inlet branch pipe, and the second exhaust outlet 15 is sealed to the first exhaust outlet 5 via an exhaust branch pipe. Valves are installed on both the air inlet and exhaust branch pipes. Each valve is numbered, and the controlled end of each valve is connected to the control end of a controller, which controls the opening and closing of each valve. For example, when only one battery needs to be tested, the controller can open only one air inlet branch pipe valve to fill one test compartment 3 with inert gas. When multiple batteries need to be tested, the controller can open multiple air inlet branch pipe valves to fill multiple test compartments 3 with inert gas.

[0026] Furthermore, each of the test compartments 3 is equipped with a pressure sensor 18. The output of the pressure sensor 18 is connected to the input of the controller. When a battery explodes during the test, the pressure sensor 18 promptly collects the abnormal pressure signal. The controller can then open the valve with the corresponding number connected to the second exhaust port 15 of the test compartment 3. The staff can then activate the waste gas recovery device to recover the gas and explosion dust in the test compartment 3.

[0027] The housing 1 is provided with a first test lead hole 6, and each test compartment 3 is provided with a second test lead hole 16. The first test lead hole 6 and the second test lead hole 16 are used to introduce the test leads required for battery testing. A rubber ring is provided on the inner diameter of the second test lead hole 16 to improve the airtightness of the test compartment 3 and prevent gas in the test compartment 3 from leaking through the second test lead hole 16.

[0028] Each test compartment 3 is equipped with a heating device, such as a heating plate or heating tube, to simulate the battery operating at different ambient temperatures. The controlled end of the heating device is connected to the control end of the controller, and the connecting wires of the heating device can also pass through the first test wire hole 6 and the second test wire hole 16.

[0029] Furthermore, to prevent a single battery malfunction from affecting the normal battery testing of other test compartments 3, each test compartment 3 is also equipped with a test compartment door, which has an adjustable door lock structure, as shown in the figure. Figure 4 As shown, the adjustable door lock structure includes a handle 9, a latch 10, and a latch assembly. The handle 9 is located on the outside of the door leaf 7 of the test compartment 3, and the latch 10 is located on the inside of the door leaf 7 of the test compartment. The handle 9 and the latch 10 are connected by a linkage mechanism, which is used to ensure that the handle 9 can drive the latch 10 to rotate simultaneously.

[0030] The locking assembly is mounted on the test compartment door frame 8. The locking assembly includes a screw 11 and an adjusting buckle 12. One end of the screw 11 is mounted on the test compartment door frame 8, and the other end points towards the test compartment door leaf 7. The outer diameter of the screw 11 has a threaded structure. The adjusting buckle 12 is sleeved on the screw 11. The center position of the adjusting buckle 12 has a threaded hole that matches the threaded structure. The adjusting buckle 12 and the screw 11 are rotatably connected by a threaded engagement. The rotating handle 9 can drive the locking tongue 10 to rotate. The locking tongue 10 can be engaged between the adjusting buckle 12 and the test compartment door frame. The operator can change the position of the adjusting buckle 12 by rotating it, thereby indirectly adjusting the tightness of the test compartment door's closure.

[0031] An integrally formed silicone rubber door seal ring is also provided between the door leaf 7 of the test compartment 3 and the door frame 8 of the test compartment 3. The silicone rubber door seal ring has a certain elastic deformation. The silicone rubber door seal ring is combined with an adjustable door lock structure to effectively ensure the high vacuum or high sealing performance inside the box, and ensure that there is no leakage of inert gas in the test compartment 3 during battery testing.

[0032] To ensure the effectiveness of battery testing, the entire cabinet of the test cabinet 2 is made of aluminum, a metal with good thermal conductivity. Each test compartment 3 is also equipped with a temperature sensor 17, the output of which is connected to the input of the controller for real-time acquisition and analysis of the temperature within the test compartment 3.

[0033] To enhance the pressure resistance of the battery testing device, the outer shell of the enclosure 1 is made of cold-rolled steel plate with an electrostatic powder coating treatment, and the steel thickness of the enclosure 1 is 3 mm. The door 7 of the enclosure 1 is made of high-temperature resistant double-layer tempered glass, which facilitates observation of the internal battery testing and effectively improves the explosion-proof performance of the battery testing device. Furthermore, an 8 cm thick insulation layer is wrapped between the test cabinet 2 and the enclosure 1, which can effectively prevent internal heat dissipation and prevent internal combustion or high temperature from endangering the surrounding environment.

[0034] To facilitate real-time monitoring and data display, and for ease of operation and control by staff, a display 13 is also provided on the housing 1, which is connected to the controller. The display 13 can display in real-time information such as temperature and pressure collected in each test compartment 3 during the battery testing process.

[0035] This application utilizes an integrated test cabinet with multiple test compartments, resulting in improved cabinet structural stability. The inclusion of multiple independent test compartments, each with its own door, effectively reduces the risk of damage from explosions during individual battery testing. The combination of adjustable door locks and flexible sealing structures further enhances the sealing performance of the test compartments, preventing the leakage of harmful gases and debris. Furthermore, by equipping each test compartment with an independent heating device, air inlet, and exhaust outlet, the test compartments can quickly reach the required testing environment, improving testing efficiency. This also reduces the amount of inert gas used, conserving gas energy and lowering operating costs.

[0036] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included within the protection scope of the present utility model patent application.

Claims

1. A battery testing device, comprising a housing and a controller, wherein the housing is provided with a first air inlet, a first exhaust outlet, and a first test lead hole, characterized in that, The enclosure contains a test cabinet, which is composed of multiple integrated test compartments. Each test compartment has a second air inlet, a second exhaust outlet, and a second test line hole. The second air inlet is sealed to the first air inlet via an air inlet branch pipe, and the second exhaust outlet is sealed to the first exhaust outlet via an exhaust branch pipe. Valves are installed on the air inlet and exhaust branch pipes. Each test compartment is equipped with a heating device. Each test compartment also has a test compartment door with an adjustable door lock structure. The adjustable door lock structure includes a handle, a latch, and a latch assembly. The handle is located on the outside of the test compartment door, and the latch is located on the inside of the test compartment door. The handle and the latch are connected by a linkage mechanism, and the latch assembly is located on the test compartment door frame. An elastic sealing structure is provided between the test compartment door and the test compartment door frame. The controller is used to control the operation of the heating device and the opening and closing of the valves.

2. The battery testing device according to claim 1, characterized in that, The locking assembly includes a screw and an adjusting buckle. One end of the screw is located on the test compartment door frame, and the other end points towards the test compartment door leaf. The outer diameter of the screw has a threaded structure. The adjusting buckle is sleeved on the screw. The center position of the adjusting buckle has a threaded hole that matches the thread. The adjusting buckle and the screw are rotatably connected by the threaded engagement.

3. The battery testing device according to claim 1, characterized in that, Each test chamber is equipped with a pressure sensor and a temperature sensor, and the output terminals of the pressure sensor and the temperature sensor are connected to the input terminal of the controller.

4. The battery testing device according to claim 1, characterized in that, The first air inlet is connected to the gas storage tank via the main air inlet, and the first exhaust outlet is connected to the waste gas recovery device via the main exhaust outlet. The waste gas recovery device includes a vacuum pump and a waste gas recovery tank. The air inlet of the vacuum pump is connected to the end of the main exhaust outlet, and the exhaust outlet of the vacuum pump is connected to the air inlet of the waste gas recovery tank.

5. The battery testing device according to claim 1, characterized in that, The elastic sealing structure between the test compartment door leaf and the test compartment door frame is a silicone rubber door seal ring.

6. The battery testing device according to claim 1, characterized in that, A rubber ring is provided inside the second test lead hole.

7. The battery testing device according to claim 1, characterized in that, The test cabinet is made of aluminum.

8. A battery testing device according to claim 1, characterized in that, The outer shell of the enclosure is made of cold-rolled steel plate with electrostatic powder coating, and the door of the enclosure is made of high-temperature resistant double-layer tempered glass.

9. A battery testing device according to claim 1, characterized in that, The enclosure is also equipped with a display, which is electrically connected to the controller.

Images