Battery pack spraying test device

Abstract

The utility model discloses a battery pack spraying test device, which comprises a water storage tank, a protective shell is fixedly connected above the water storage tank, a support shaft is rotatably mounted on the inner bottom surface of the protective shell, a transmission motor is fixedly mounted on one side of the protective shell, and clamping discs are mounted at the tail ends of the support shaft and a lifting screw rod. A booster pump is fixedly installed on one side of the protective shell, spraying holes are formed in the surface of the spraying pipe, one end of the spraying pipe penetrates through the protective shell and is fixedly connected with an air inlet pipe, and an air heater is fixedly installed at the tail end of the air inlet pipe. The device has the following effects: the battery pack needing to be subjected to spraying test is fixedly arranged between the two clamping plates, after the spraying test is finished, the booster pump is closed, the hot-air blower is started, the hot-air blower injects hot air into the spraying pipe and then blows the hot air to the tested battery pack through the spraying holes, and meanwhile, the transmission motor is started to drive the battery pack to rotate at a high speed to throw water; and rapid drying of the battery pack after spraying is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack testing, and specifically, to a battery pack spray testing device. Background Technique

[0002] With the rapid development of the electric vehicle industry, as a core component of electric vehicles, the safety and reliability of battery packs have become the focus of the industry. During the production process of battery packs, to ensure their stable operation in various complex environments, especially in humid or wading conditions, and to prevent safety hazards such as electric leakage and short circuit caused by water ingress, it is particularly important to conduct strict waterproof performance tests on battery packs. Among them, spray testing, as a key link in evaluating the waterproof performance of battery packs, is widely used in the production process.

[0003] However, the battery pack spray testing devices widely used in the current market still have deficiencies in functional design. Specifically, these devices mainly focus on simulating the effects of sprays with different intensities on battery packs to test their sealing and waterproof capabilities. However, after the spray test is completed, there is often a lack of an effective drying mechanism. This results in a large amount of moisture remaining on the surface of the battery pack after the test. If not processed in time, it may not only affect the subsequent assembly and detection processes, but more importantly, for battery packs that do not meet the performance standards, the moisture remaining on their surfaces will pose a significant risk of electric leakage, and there are certain safety hazards for operators during disassembly. For the problems in the related technologies, no effective solutions have been proposed yet. Content of the Utility Model

[0004] Aiming at the problems in the related technologies, the utility model proposes a battery pack spray testing device to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] Therefore, the specific technical solution adopted by the utility model is as follows:

[0006] A battery pack spray testing device includes a water storage tank. A protective housing is fixedly connected above the water storage tank. A support shaft is rotatably installed on the inner bottom surface of the protective housing. A first bevel gear is fixedly installed on the surface of the support shaft. A drive motor is fixedly installed on one side of the protective housing. The transmission shaft of the drive motor rotatably passes through the protective housing and is fixedly connected with a second bevel gear. The first bevel gear is meshed and connected with the second bevel gear. A lifting screw rod is threadedly connected to the top of the protective housing. Clamping discs are installed at the ends of both the support shaft and the lifting screw rod. A booster pump is fixedly installed on one side of the protective housing. A water inlet pipe is fixedly installed on one side of the booster pump, and a spray pipe is fixedly installed on the other side. Spray holes are formed on the surface of the spray pipe. One end of the spray pipe penetrates through the protective housing and is fixedly connected with an air inlet pipe. A hot air blower is fixedly installed at the end of the air inlet pipe. A positioning mechanism is provided inside the clamping disc.

[0007] Furthermore, to prevent the battery pack from shifting during rotational spraying, the positioning mechanism includes a threaded drive rod rotatably mounted on the clamping disc. Adjusting rings are threadedly connected to both sides of the surface of the threaded drive rod. Limit rods are fixedly connected to both sides of the clamping disc, and limit grooves are formed on the surfaces of the limit rods. One side of the adjusting ring passes through the limit groove and is fixedly connected to a positioning plate.

[0008] Furthermore, to enable the drive motor to drive the battery pack between the clamping discs to rotate, the end of the support shaft is fixedly connected to the clamping disc, and the end of the lifting screw rod is rotatably connected to the clamping disc.

[0009] Furthermore, to seal both ends of the spray pipe, sealing valves are rotatably mounted on one side surface of both the spray pipe and the air inlet pipe.

[0010] Furthermore, to increase the friction between the clamping disc and the battery pack, a rubber pad is fixedly mounted on one side surface of the clamping disc.

[0011] Furthermore, to achieve the recycling of the spray water, a circulation hole is formed at the connection between the water storage tank and the protective housing.

[0012] Furthermore, to switch control each electrical component in the device, a multi-control switch is fixedly mounted on one side surface of the outer surface of the water storage tank.

[0013] Furthermore, to open and close the protective housing, a protective door is rotatably mounted on one side of the protective housing.

[0014] The beneficial effects of the present utility model are as follows: Through the two clamping discs and the positioning mechanism on the clamping discs, the battery pack to be subjected to spray testing is fixedly clamped. After injecting water into the spray pipe through the booster pump, it is ejected from the spray holes, and the drive motor drives the support shaft and the battery pack clamped at its top to rotate, realizing the all-round spray testing of the battery pack. After the testing is completed, the booster pump is turned off, and hot air can be injected into the spray pipe by starting the hot air blower, and then blown onto the battery pack through the spray holes to dry it by hot air. While blowing, the drive motor drives the battery pack to continuously rotate and shake off water, realizing the rapid drying of the battery pack after testing, ensuring that there is no residual moisture on the surface of the battery pack, preventing electric leakage, greatly reducing the safety hazard during the disassembly of the battery pack, and ensuring production safety. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1Schematic diagram of the surface structure of a battery pack spray test device according to an embodiment of the present utility model;

[0017] Figure 2 Internal sectional view of the water storage tank and the protective housing in a battery pack spray test device according to an embodiment of the present utility model;

[0018] Figure 3 Installation structure schematic diagram of the positioning mechanism in a battery pack spray test device according to an embodiment of the present utility model;

[0019] Figure 4 Side view of a battery pack spray test device according to an embodiment of the present utility model.

[0020] In the figure:

[0021] 1. Water storage tank; 2. Protective housing; 3. Support shaft; 4. First bevel gear; 5. Driving motor; 6. Second bevel gear; 7. Lifting screw rod; 8. Clamping disc; 9. Booster pump; 10. Water inlet pipe; 11. Spray pipe; 12. Spray holes; 13. Air inlet pipe; 14. Hot air blower; 15. Positioning mechanism; 1501. Threaded transmission rod; 1502. Adjusting ring; 1503. Limiting rod; 1504. Limiting groove; 1505. Positioning plate; 16. Sealing valve; 17. Rubber pad; 18. Circulation holes; 19. Multi-control switch; 20. Protective door. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] According to an embodiment of the present utility model, a battery pack spray test device is provided. Embodiment

[0024] As Figures 1 - 4As shown in the figure, a battery pack spray test device according to an embodiment of the present invention includes a metal rectangular water storage tank 1. A protective housing 2 is fixedly connected above the water storage tank 1. A support shaft 3 is rotatably installed on the inner bottom surface of the protective housing 2. A first bevel gear 4 is fixedly installed on the surface of the support shaft 3. A transmission motor 5 is fixedly installed on one side of the protective housing 2. The transmission shaft of the transmission motor 5 rotatably passes through the protective housing 2 and is fixedly connected with a second bevel gear 6. The first bevel gear 4 is meshed with the second bevel gear 6. By driving the second bevel gear 6 to rotate through the transmission motor 5, the second bevel gear 6 drives the first bevel gear 4 and the support shaft 3 to rotate in the protective housing 2; a lifting screw rod 7 is threadedly connected to the top of the protective housing 2. Clamping discs 8 are installed at the ends of both the support shaft 3 and the lifting screw rod 7. The clamping disc 8 on the support shaft 3 is fixedly connected thereto, and the clamping disc 8 at the end of the lifting screw rod 7 is rotatably connected thereto; a booster pump 9 is fixedly installed on one side of the protective housing 2 for boosting and pumping water; a water inlet pipe 10 is fixedly installed on one side of the booster pump 9, and a spray pipe 11 is fixedly installed on the other side. Spray holes 12 are formed on the surface of the spray pipe 11 for spraying water on the battery pack for spray testing; one end of the spray pipe 11 penetrates through the protective housing 2 and is fixedly connected with an air inlet pipe 13. A hot air blower 14 is fixedly installed at the end of the air inlet pipe 13 for injecting hot air into the air inlet pipe 13 and the spray pipe 11 to facilitate drying the tested battery pack; a positioning mechanism 15 is provided inside the clamping disc 8 for further fixing the battery pack.

[0025] As Figures 1 - 4 shown, the positioning mechanism 15 includes a threaded transmission rod 1501 rotatably installed on the clamping disc 8. Adjusting rings 1502 are threadedly connected to both sides of the surface of the threaded transmission rod 1501. Limiting rods 1503 are fixedly connected to both sides of the clamping disc 8. Limiting grooves 1504 are formed on the surface of the limiting rods 1503. One side of the adjusting ring 1502 passes through the limiting groove 1504 and is fixedly connected with a positioning plate 1505. By screwing the threaded transmission rods 1501 on the two clamping discs 8, the adjusting rings 1502 drive the positioning plates 1505 to move, so as to clamp and limit the edges of battery packs of different sizes; Sealing valves 16 are rotatably installed on the side surfaces of both the spray pipe 11 and the air inlet pipe 13 for closing the spray pipe 11 and the air inlet pipe 13 respectively when spraying and air drying the battery pack; A rubber pad 17 is fixedly installed on one side surface of the clamping disc 8 for increasing the friction when the clamping disc 8 contacts the battery pack and protecting the battery pack when clamping it to prevent wear; A circulation hole 18 is formed at the connection between the water storage tank 1 and the protective housing 2 for enabling the sprayed water to fall back into the water storage tank 1 again to realize the recycling of the sprayed water; A multi-control switch 19 is fixedly installed on one side surface of the outer surface of the water storage tank 1. The multi-control switch 19 is electrically connected to each electrical component in the device through a wire for controlling its on and off; A protective door 20 is rotatably installed on one side of the protective housing 2 for facilitating the opening and closing of the protective housing 2.

[0026] To facilitate the understanding of the above technical solution of the present utility model, the working principle or operation mode of the present utility model in the actual process will be described in detail below.

[0027] In summary, by means of the above technical solution of the present utility model, during actual application, the battery pack to be subjected to the spray test is placed on the clamping disc 8 at the top of the support shaft 3. The lifting screw rod 7 is rotated to drive the clamping disc 8 at its end to move downward to clamp and limit the battery pack. Then, by rotating the threaded transmission rods 1501 on the two clamping discs 8, the adjusting ring 1502 drives the positioning plate 1505 to move and adjust, so as to clamp and position the respective side surfaces of the battery pack; the driving motor 5 is started, and through the meshing of the first bevel gear 4 and the second bevel gear 6, the driving motor 5 drives the support shaft 3 and the battery pack clamped on its top to rotate. After the booster pump 9 is started, the water in the water storage tank 1 enters the spray pipe 11 and continuously sprays onto the surface of the rotating battery pack through the spray holes 12 to realize the spray test of the battery pack. After the spraying is completed, the booster pump 9 and the sealing valve 16 at one end of the spray pipe 11 are closed, the sealing valve 16 on the air inlet pipe 13 is opened and the hot air blower 14 is started. After the hot air blower 14 injects hot air into the spray pipe 11, it is blown onto the battery pack through the spray holes 12 to dry it with hot air. While blowing the air, the driving motor 5 drives the battery pack to continuously rotate and shake off the water, so as to quickly dry the battery pack after the test.

[0028] 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 replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A battery pack spray test device, characterized in that, It includes a water storage tank (1), above which a protective housing (2) is fixedly connected. Inside the bottom surface of the protective housing (2), a support shaft (3) is rotatably installed. On the surface of the support shaft (3), a first bevel gear (4) is fixedly installed. On one side of the protective housing (2), a drive motor (5) is fixedly installed. The drive shaft of the drive motor (5) rotatably passes through the protective housing (2) and is fixedly connected to a second bevel gear (6). The first bevel gear (4) is meshed with the second bevel gear (6). On the top of the protective housing (2), a lifting screw rod (7) is threadedly connected. At the ends of the support shaft (3) and the lifting screw rod (7), clamping discs (8) are installed. On one side of the protective housing (2), a booster pump (9) is fixedly installed. On one side of the booster pump (9), a water inlet pipe (10) is fixedly installed, and on the other side, a spray pipe (11) is fixedly installed. Spray holes (12) are formed on the surface of the spray pipe (11). One end of the spray pipe (11) penetrates through the protective housing (2) and is fixedly connected to an air inlet pipe (13). At the end of the air inlet pipe (13), a hot air blower (14) is fixedly installed. Inside the clamping disc (8), a positioning mechanism (15) is provided.

2. The battery pack spray test device according to claim 1, characterized in that, The positioning mechanism (15) includes a threaded transmission rod (1501) rotatably installed on the clamping disc (8). On both sides of the surface of the threaded transmission rod (1501), adjusting rings (1502) are threadedly connected. On both sides of the clamping disc (8), limiting rods (1503) are fixedly connected. Limiting grooves (1504) are formed on the surface of the limiting rods (1503). On one side of the adjusting ring (1502), it passes through the limiting groove (1504) and is fixedly connected to a positioning plate (1505).

3. The battery pack spray test device according to claim 1, wherein, The end of the support shaft (3) is fixedly connected to the clamping disc (8), and the end of the lifting screw rod (7) is rotatably connected to the clamping disc (8).

4. A battery pack spray test device according to claim 1, wherein, On one side surface of both the spray pipe (11) and the air inlet pipe (13), a sealing valve (16) is rotatably installed.

5. The battery pack spray test device according to claim 1, characterized in that, On one side surface of the clamping disc (8), a rubber pad (17) is fixedly installed.

6. The battery pack spray test device according to claim 1, wherein At the connection between the water storage tank (1) and the protective housing (2), a circulation hole (18) is formed.

7. A battery pack spray test device according to claim 1, characterized in that, On one side of the outer surface of the water storage tank (1), a multi-control switch (19) is fixedly installed.

8. The battery pack spray test device according to claim 1, characterized in that, On one side of the protective housing (2), a protective door (20) is rotatably installed.

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