New energy automobile battery airtightness detection device

Abstract

The utility model provides a new energy automobile battery airtightness detection device, and belongs to the technical field of new energy automobiles. The new energy automobile battery airtightness detection device comprises a circulation assembly, the circulation assembly comprises a container body, an infiltration bin, a liquid storage bin and a temporary storage bin, the center position of the infiltration bin is detachably connected with an electric control valve, the liquid storage bin is provided with a liquid gathering slope along the central axis, and a communication pipe is fixedly connected between the liquid storage bin and the temporary storage bin; the liquid storage bin communicates with the bottom of the temporary storage bin through the communicating pipe. And the branching assembly comprises an air pump, an adapter valve and a lifting air bag, the adapter valve is fixedly connected to the end opening part of the air pump, the adapter valve and the lifting air bag are connected through an air conveying pipe, and the exterior of the adapter valve is fixedly connected with a pressurizing pipe and communicates with the liquid storage bin. The battery testing device has the advantages that testing water can be recycled through air pressure, and the battery can be flexibly borne and lifted.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle technology, specifically to a new energy vehicle battery airtightness testing device. Background Technology

[0002] Battery and airtightness testing for new energy vehicles are crucial for ensuring the safety and performance of electric vehicles. With increasing environmental awareness and technological advancements, the electric vehicle market is growing rapidly, leading to increasingly stringent requirements for battery safety. As the "heart" of a new energy vehicle, the battery's performance directly impacts the vehicle's range and safety. Airtightness testing is a key step in preventing internal battery leakage and the intrusion of external moisture and gases, ensuring the battery's long-term stable operation. Effective testing methods can promptly identify potential safety hazards, protecting the safety of drivers and passengers. Therefore, batteries and their airtightness testing hold a vital position in the new energy vehicle industry.

[0003] Most existing new energy vehicle batteries rely on instruments to inject detection gas into the battery and judge whether there is a leak by the gas pressure. However, it is difficult to determine the damage point of a leaking battery. Immersion test can effectively determine the leak point. However, this type of test requires a large amount of water, and the car battery is inconvenient to remove from the liquid injection container. Therefore, this application provides a new energy vehicle battery airtightness testing device. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model proposes a new energy vehicle battery airtightness testing device that can use test water through air pressure circulation and can flexibly support and lift the battery.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A device for testing the airtightness of a new energy vehicle battery, comprising:

[0007] The circulation component includes a container body, an impregnation chamber, a liquid storage chamber, and a buffer chamber. An electrically controlled valve is detachably connected to the center of the impregnation chamber. A liquid collection slope is provided along the central axis of the liquid storage chamber. A connecting pipe is fixedly connected between the liquid storage chamber and the buffer chamber, and the connecting pipe connects the bottoms of the liquid storage chamber and the buffer chamber to each other.

[0008] The branch assembly includes an air pump, a transfer valve, and a lifting airbag. The transfer valve is fixedly connected to the port of the air pump. The transfer valve and the lifting airbag are connected to each other through an air supply pipe. A booster pipe is fixedly connected to the outside of the transfer valve and communicates with the liquid storage tank.

[0009] Furthermore, the circulation component has an engagement groove on its exterior, a return spring is fixedly connected inside the engagement groove, a connecting block is fixedly connected to the end of the return spring away from the engagement groove, and a movable block is fixedly connected to the outside of the connecting block.

[0010] Furthermore, the circulation component has a side connecting groove on its exterior, and a diversion plate is movably connected to the side connecting groove and the exterior of the immersion chamber. A connecting column is fixedly connected to the exterior of the diversion plate, and the connecting column is movably connected to the side connecting groove.

[0011] Furthermore, the impregnation chamber and the storage chamber are interconnected by an electrically controlled valve, the liquid-gathering slope distributes the water flow to both sides, and the connecting pipe is in contact with the bottom of the angle between the liquid-gathering slope and the storage chamber.

[0012] Furthermore, there are two sets of buffer bins symmetrically distributed outside the circulation component, and an overflow trough is provided on the upper part of the connection between the buffer bin and the immersion bin, with the connecting pipe being flush with the overflow trough.

[0013] Furthermore, there are two sets of lifting airbags symmetrically distributed outside the immersion chamber, and a central connecting pipe is fixedly connected between the lifting airbags. There are multiple sets of central connecting pipes evenly distributed between the lifting airbags.

[0014] Furthermore, the deflector plate is in contact with the bottom of the lifting airbag.

[0015] Furthermore, the air pump is fixedly connected to the outside of the circulation assembly, the air supply pipe is fixedly connected only to one side of the lifting airbag, and the central connecting pipe connects the lifting airbag and the air supply pipe.

[0016] This utility model has the following beneficial effects:

[0017] 1. By setting up an immersion chamber, a liquid storage chamber, an electronically controlled valve, and a connecting pipe, the device can circulate the liquid through the immersion chamber and the liquid storage chamber to perform airtightness immersion testing on new energy vehicle batteries, reducing the consumption of test water.

[0018] 2. By setting up an air pump, a transfer valve, and a lifting airbag, the device can control the liquid injection volume through air pressure. At the same time, the lifting airbag supports and lifts the new energy vehicle battery, facilitating the overall lifting of the battery and making it easy to remove after testing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a utility model Figure 1 Exploded view of the internal structure;

[0021] Figure 3 This is a utility model Figure 2 Anatomical diagram of some structures in the middle;

[0022] Figure 4 This is a utility model Figure 3 Another perspective on the internal structure anatomy;

[0023] Figure 5 This is a utility model Figure 2 A partial structural diagram;

[0024] Figure 6 This is a utility model Figure 2 A partial structural diagram.

[0025] The components include: 1. Circulation assembly; 2. Branching assembly; 3. Container body; 4. Immersion chamber; 5. Liquid storage chamber; 6. Buffer chamber; 7. Electrically controlled valve; 8. Fitting groove; 9. Return spring; 10. Connecting seal; 11. Movable seal; 12. Connecting pipe; 13. Overflow tank; 14. Side connecting groove; 15. Liquid collection slope; 16. Drainage plate; 17. Connecting column; 18. Air pump; 19. Transfer valve; 20. Gas delivery pipe; 21. Pressure boosting pipe; 22. Lifting airbag; 23. Central connecting pipe. Detailed Implementation

[0026] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Example 1

[0028] Please see Figures 1 to 6 As shown, the present invention provides a new energy vehicle battery air tightness testing device, a circulation component 1, the circulation component 1 including a container body 3, an immersion chamber 4, a liquid storage chamber 5 and a buffer chamber 6, an electronically controlled valve 7 detachably connected to the center of the immersion chamber 4, a liquid collection slope 15 arranged along the central axis of the liquid storage chamber 5, and a connecting pipe 12 fixedly connected between the liquid storage chamber 5 and the buffer chamber 6, the connecting pipe 12 connecting the bottom of the liquid storage chamber 5 and the buffer chamber 6 to each other;

[0029] The circulation component 1 has an external fitting groove 8, and a return spring 9 is fixedly connected inside the fitting groove 8. A connecting seal block 10 is fixedly connected to the end of the return spring 9 away from the fitting groove 8. A movable seal block 11 is fixedly connected to the outside of the connecting seal block 10. The circulation component 1 has an external side connecting groove 14. A diversion plate 16 is movably connected to the external side connecting groove 14 and the immersion chamber 4. A connecting column 17 is fixedly connected to the external side connecting groove 14. The connecting column 17 is movably connected to the side connecting groove 14. The immersion chamber 4 and the liquid storage chamber 5 are interconnected through an electric control valve 7. The liquid collection slope 15 distributes the water flow to both sides. The connecting pipe 12 is in contact with the bottom of the angle between the liquid collection slope 15 and the liquid storage chamber 5.

[0030] Specifically, during the airtightness test, the adapter valve 19 is rotated to the direction of the lifting airbag 22, and the air pump 18 is turned on to inflate the lifting airbag 22 until it is full. The drainage plate 16 is placed outside the lifting airbag 22 and attached to it. Then, the new energy vehicle battery is placed outside the drainage plate 16, and the air pump 18 is turned on again to evacuate the lifting airbag 22 and collect the new energy vehicle battery into the immersion chamber 4. During this process, the port of the car battery is in contact with the connecting seal block 10, and the connecting seal block 10 and the car battery are sealed and fixed by the movable seal block 11 to prevent the test water from overflowing.

[0031] Example 2

[0032] Furthermore, the branch assembly 2 includes an air pump 18, a transfer valve 19, and a lifting airbag 22. The transfer valve 19 is fixedly connected to the port of the air pump 18. The transfer valve 19 and the lifting airbag 22 are connected to each other through an air supply pipe 20. A pressure boosting pipe 21 is fixedly connected to the outside of the transfer valve 19 and communicates with the liquid storage tank 5.

[0033] There are two sets of buffer chambers 6 symmetrically distributed outside the circulation component 1. An overflow trough 13 is provided at the upper part of the connection between the buffer chamber 6 and the immersion chamber 4. The connecting pipe 12 is flush with the overflow trough 13. There are two sets of lifting airbags 22 symmetrically distributed outside the immersion chamber 4. A central connecting pipe 23 is fixedly connected between the lifting airbags 22. There are multiple sets of central connecting pipes 23 evenly distributed between the lifting airbags 22. The diversion plate 16 is in contact with the bottom of the lifting airbag 22. The air pump 18 is fixedly connected outside the circulation component 1. The air supply pipe 20 is fixedly connected only to one side of the lifting airbag 22. The central connecting pipe 23 connects the lifting airbag 22 and the air supply pipe 20.

[0034] By making the above settings, the transfer valve 19 is rotated to the pressurization pipe 21 again, and the air pump 18 pressurizes the liquid storage tank 5, forcing the water inside the liquid storage tank 5 to flow into the buffer tank 6 through the connecting pipe 12. The test water flows into the immersion tank 4 through the overflow tank 13 and completely immerses the new energy vehicle battery. Finally, after injecting test gas into the battery, the airtightness of the battery is determined by observing the point where the bubbles emerge in the water.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 device for testing the airtightness of batteries in new energy vehicles, characterized in that, include: The circulation component (1) includes a container body (3), an impregnation chamber (4), a liquid storage chamber (5), and a buffer chamber (6). An electric control valve (7) is detachably connected to the center of the impregnation chamber (4). A liquid collection slope (15) is provided along the central axis of the liquid storage chamber (5). A connecting pipe (12) is fixedly connected between the liquid storage chamber (5) and the buffer chamber (6). The connecting pipe (12) connects the bottoms of the liquid storage chamber (5) and the buffer chamber (6) to each other. The branch assembly (2) includes an air pump (18), a transfer valve (19), and a lifting airbag (22). The transfer valve (19) is fixedly connected to the port of the air pump (18). The transfer valve (19) and the lifting airbag (22) are connected to each other through an air supply pipe (20). The transfer valve (19) is externally fixedly connected to a pressure boosting pipe (21) and communicates with the liquid storage tank (5).

2. The airtightness testing device for a new energy vehicle battery according to claim 1, characterized in that, The circulation component (1) has an external fitting groove (8), and a reset spring (9) is fixedly connected inside the fitting groove (8). A connecting block (10) is fixedly connected to the end of the reset spring (9) away from the fitting groove (8), and a movable block (11) is fixedly connected to the outside of the connecting block (10).

3. The airtightness testing device for a new energy vehicle battery according to claim 1, characterized in that, The circulation component (1) has a side connecting groove (14) on its outside. The side connecting groove (14) and the immersion chamber (4) are movably connected to a flow diversion plate (16). The flow diversion plate (16) is fixedly connected to a connecting column (17), and the connecting column (17) is movably connected to the side connecting groove (14).

4. The airtightness testing device for a new energy vehicle battery according to claim 1, characterized in that, The immersion chamber (4) and the liquid storage chamber (5) are connected to each other through an electric control valve (7). The liquid-gathering slope (15) distributes the water flow to both sides. The connecting pipe (12) is in contact with the bottom of the angle between the liquid-gathering slope (15) and the liquid storage chamber (5).

5. The airtightness testing device for a new energy vehicle battery according to claim 1, characterized in that, There are two sets of buffer bins (6) symmetrically distributed outside the circulation component (1). An overflow trough (13) is provided on the upper part of the connection between the buffer bin (6) and the immersion bin (4). The connecting pipe (12) is flush with the overflow trough (13).

6. The airtightness testing device for a new energy vehicle battery according to claim 1, characterized in that, There are two sets of lifting airbags (22) symmetrically distributed outside the immersion chamber (4). A central connecting pipe (23) is fixedly connected between the lifting airbags (22). There are multiple sets of central connecting pipes (23) evenly distributed between the lifting airbags (22).

7. The airtightness testing device for a new energy vehicle battery according to claim 3, characterized in that, The deflector plate (16) is in contact with the bottom of the lifting airbag (22).

8. The airtightness testing device for a new energy vehicle battery according to claim 6, characterized in that, The air pump (18) is fixedly connected to the outside of the circulation assembly (1), the air supply pipe (20) is fixedly connected only to one side of the lifting airbag (22), and the central connecting pipe (23) connects the lifting airbag (22) and the air supply pipe (20).

Images