Battery pack water-cooling plate airtightness detection equipment

Abstract

The utility model discloses a battery pack water-cooling plate airtightness detection device, which belongs to the technical field of battery pack water-cooling plate detection and comprises a bottom plate, a heightening block is fixedly connected to the top of the bottom plate, two moving frames are arranged above the bottom plate and located on two sides of the heightening block, mounting frames are fixedly connected to the tops of the two moving frames, and the mounting frames are fixedly connected to the bottom of the bottom plate. The top of the bottom plate is fixedly connected with a supporting frame, the supporting frame is located between the two moving frames, a moving plate is arranged in the supporting frame, an inflation pump is arranged at the bottom of the moving plate, and the distance between the two mounting frames can be flexibly adjusted through the linkage design of the two moving frames, the mounting frames, a first connecting rod, a second connecting rod and a rotating shaft of the clamping assembly; therefore, the battery pack water-cooling plates with different lengths and sizes are adapted, the universality and flexibility of the equipment are greatly enhanced, the same equipment can detect the battery pack water-cooling plates with various specifications, the detection efficiency is improved, and the equipment cost and the maintenance difficulty are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack water-cooled plate detection, and more specifically, to an airtight detection device for a battery pack water-cooled plate. Background Art

[0002] The battery pack water-cooled plate is a key component specifically designed for the thermal management of the battery pack. Its working principle is based on water-cooling technology, aiming to maintain the battery pack within the optimal operating temperature range through efficient heat conduction and cooling mechanisms. The battery pack water-cooled plate is a device that uses water circulation as a cooling medium. Through its internal cooling channels and heat dissipation structure, it takes away the heat generated by the battery pack during operation to ensure the temperature stability of the battery pack.

[0003] With the rapid development of the new energy vehicle industry, the battery pack, as the core component of electric vehicles, has received extensive attention in terms of its performance and safety. During operation, the battery pack generates a large amount of heat. If the heat cannot be dissipated in time, it will lead to too high battery temperature, which will in turn affect the battery life and safety. Therefore, as an important means to solve the battery heat dissipation problem, the water-cooling system has been widely used in the design of battery packs. The working principle of the airtight detection device for the battery pack water-cooled plate is mainly based on the air pressure method. During the detection process, the device first fills a certain volume of dry and impurity-free gas into the battery pack water-cooled plate, then disconnects the compressed air supply, and allows it to stand for a period of time to stabilize the pressure. By monitoring the minute changes in the air pressure inside the battery pack, the device can accurately calculate the leakage rate and compare it with the preset standard value to determine whether the sealing performance of the battery pack water-cooled plate is qualified. Traditional airtight detection requires individual adjustment for fixation when dealing with battery pack water-cooled plates of different sizes, which will greatly increase the preparation time before detection. Every time the size of the water-cooled plate is changed, the fixing device needs to be readjusted, reducing the overall detection efficiency. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides an airtight detection device for a battery pack water-cooled plate, which solves the above problems.

[0005] To achieve the above object, the utility model provides the following technical solution: An airtight detection device for a battery pack water-cooled plate, including a bottom plate, a heightening block is fixedly connected to the top of the bottom plate, two moving frames are arranged above the bottom plate, the two moving frames are located on both sides of the heightening block, mounting frames are fixedly connected to the tops of the two moving frames, a support frame is fixedly connected to the top of the bottom plate, the support frame is located between the two moving frames, a moving plate is arranged inside the support frame, an air inflation pump is arranged at the bottom of the moving plate, and further includes:

[0006] The clamping assembly is located above the bottom plate and connected to the two moving frames, and is used to drive the two mounting frames to move, so as to be applicable to battery pack water cooling plates of different lengths and sizes.

[0007] The adjustable detection assembly is located on the outer surface of the support frame and connected to the air inflation pump, and is used to drive the air inflation pump to adjust in height and horizontal direction, so as to be applicable to battery pack water cooling plates of different thicknesses.

[0008] Preferably, four symmetrically distributed guide rails are fixedly connected to the top of the bottom plate. All four guide rails are arranged in an L-shaped structure. Sliders are slidably connected to the tops of the four guide rails. The tops of the two sliders are fixedly connected to the bottoms of the corresponding moving frames. A second push cylinder is fixedly installed on the top of the bottom plate. The output end of the second push cylinder is fixedly connected to the adjacent moving frame.

[0009] Preferably, the clamping assembly includes a first connecting rod, a fixed disk, a second connecting rod and a rotating shaft. The first connecting rods are rotatably connected to the outer surfaces of the two moving frames. The second connecting rod is rotatably connected between the two first connecting rods. The rotating shaft is fixedly connected to the top of the height increasing block. The rotating shaft is rotatably connected to the second connecting rod. The fixed disk is fixedly connected to the top of the rotating shaft. The fixed disk is located above the second connecting rod.

[0010] Preferably, both of the mounting frames are arranged in an F-shaped structure. Screws are threadedly connected to the tops of the two mounting frames. Pressing plates are fixedly connected to the bottoms of the two screws.

[0011] Preferably, the adjustable detection assembly includes a rectangular groove, a driving motor and a threaded rod. The moving plate is arranged in a π-shaped structure. The threaded rod is rotatably connected to the inside of the moving plate. The outer surface of the threaded rod is threadedly sleeved with the air inflation pump. The rectangular groove is opened at the bottom of the moving plate. The rectangular groove is slidably connected to the air inflation pump. The driving motor is fixedly installed at the bottom of the moving plate. The output end of the driving motor is fixedly connected to the end of the threaded rod.

[0012] Preferably, a first push cylinder is fixedly installed on the top of the support frame. The output end of the first push cylinder is fixedly connected to the top of the moving plate. Chute grooves are opened on both inner walls of the support frame. The moving plate is slidably connected to the inside of the two chute grooves.

[0013] Preferably, a differential pressure sensor is fixedly installed on the outer surface of the air inflation pump.

[0014] Compared with the prior art, the present utility model provides an airtight detection device for a battery pack water cooling plate, which has the following beneficial effects:

[0015] The airtightness detection device for the water-cooled plate of a battery pack can flexibly adjust the distance between two mounting brackets through the linkage design of two moving brackets, a mounting bracket, a first connecting rod, a second connecting rod and a rotating shaft, so as to adapt to water-cooled plates of battery packs with different lengths and sizes. This greatly enhances the versatility and flexibility of the device, enabling the same device to detect water-cooled plates of multiple specifications, improving the detection efficiency, and reducing the equipment cost and maintenance difficulty.

[0016] The airtightness detection device for the water-cooled plate of a battery pack can achieve precise adjustment of the inflator pump in the height and horizontal directions through the collaborative work of a first pushing cylinder and a driving motor in the adjustable detection component, enabling the device to adapt to water-cooled plates of different thicknesses, ensuring that the inflator pump can accurately dock with the detection interface, and thus improving the accuracy and reliability of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a schematic structural diagram of the slider of the present utility model;

[0019] Figure 3 is the present utility model Figure 2 the enlarged view of the structure at A in;

[0020] Figure 4 is a schematic structural diagram of the threaded rod of the present utility model.

[0021] In the figure: 1, base plate; 2, guide rail; 3, moving bracket; 4, mounting bracket; 5, screw; 6, support frame; 7, first pushing cylinder; 8, second pushing cylinder; 9, first connecting rod; 10, fixed disk; 11, slider; 12, second connecting rod; 13, pressing plate; 14, chute; 15, moving plate; 16, inflator pump; 17, differential pressure sensor; 18, rectangular groove; 19, driving motor; 20, threaded rod; 21, rotating shaft. DETAILED DESCRIPTION OF THE 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 making creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4 , the present utility model provides a technical solution:

[0024] A battery pack water-cooling plate airtightness detection device, including a bottom plate 1. A heightening block is fixedly connected to the top of the bottom plate 1. There are two moving frames 3 above the bottom plate 1. The two moving frames 3 are located on both sides of the heightening block. Mounting frames 4 are fixedly connected to the tops of the two moving frames 3. A support frame 6 is fixedly connected to the top of the bottom plate 1. The support frame 6 is located between the two moving frames 3. A moving plate 15 is arranged inside the support frame 6. An air inflation pump 16 is arranged at the bottom of the moving plate 15. It further includes:

[0025] A clamping assembly, which is located above the bottom plate 1 and connected to the two moving frames 3, and is used to drive the two mounting frames 4 to move, so as to be applicable to battery pack water-cooling plates of different lengths and sizes;

[0026] An adjustable detection assembly, which is located on the outer surface of the support frame 6 and connected to the air inflation pump 16, and is used to drive the air inflation pump 16 to adjust in height and horizontal direction, so as to be applicable to battery pack water-cooling plates of different thicknesses. When it is necessary to detect battery pack water-cooling plates of different lengths and sizes, first place the battery pack water-cooling plate on the fixed plate 10.

[0027] Furthermore, four guide rails 2 symmetrically distributed with each other are fixedly connected to the top of the bottom plate 1. The four guide rails 2 are all arranged in an L-shaped structure. Sliders 11 are slidably connected to the tops of the four guide rails 2. The tops of the two sliders 11 are fixedly connected to the bottoms of the corresponding moving frames 3. A second push cylinder 8 is fixedly installed on the top of the bottom plate 1. The output end of the second push cylinder 8 is fixedly connected to the adjacent moving frame 3. By operating to start the second push cylinder 8, its output end pushes the connected moving frame 3 to drive the slider 11 to slide along the guide rail 2, so as to drive the two mounting frames 4 to move closer to or away from each other.

[0028] Furthermore, the clamping assembly includes a first connecting rod 9, a fixed plate 10, a second connecting rod 12 and a rotating shaft 21. The outer surfaces of the two moving frames 3 are rotatably connected with the first connecting rod 9. The second connecting rod 12 is rotatably connected between the two first connecting rods 9. The rotating shaft 21 is fixedly connected to the top of the heightening block. The rotating shaft 21 is rotatably connected with the second connecting rod 12. The fixed plate 10 is fixedly connected to the top of the rotating shaft 21. The fixed plate 10 is located above the second connecting rod 12. The approach of the two mounting frames 4 will drive the two first connecting rods 9 to rotate and their positions to shift. The two first connecting rods 9 will drive the second connecting rod 12 to rotate and shift on the outer surface of the rotating shaft 21. As the mounting frames 4 approach, the battery pack water-cooling plate can be clamped.

[0029] Furthermore, the two mounting frames 4 are both arranged in an F-shaped structure. Screws 5 are threadedly connected to the tops of the two mounting frames 4. Pressing plates 13 are fixedly connected to the bottoms of the two screws 5. By rotating the screws 5 at the tops of the mounting frames 4, the pressing plates 13 at the bottoms of the screws 5 are lowered to press the battery pack water-cooling plate to achieve fixation.

[0030] Further, the regulating detection component includes a rectangular groove 18, a driving motor 19 and a threaded rod 20. The moving plate 15 is arranged in a π-shaped structure. A threaded rod 20 is rotatably connected inside the moving plate 15. The outer surface of the threaded rod 20 is threadedly sleeved with the air inflating pump 16. A rectangular groove 18 is formed at the bottom of the moving plate 15. The rectangular groove 18 is slidably connected with the air inflating pump 16. A driving motor 19 is fixedly installed at the bottom of the moving plate 15. The output end of the driving motor 19 is fixedly connected with the end of the threaded rod 20. Start the driving motor 19, and its output end drives the threaded rod 20 to rotate. Since the threaded rod 20 is threadedly sleeved with the air inflating pump 16 and the air inflating pump 16 can slide in the rectangular groove 18, the rotation of the threaded rod 20 will drive the air inflating pump 16 to move in the horizontal direction, realizing the precise position adjustment of the air inflating pump 16 to adapt to the battery pack water-cooled plates at different positions.

[0031] Further, a first pushing cylinder 7 is fixedly installed at the top of the support frame 6. The output end of the first pushing cylinder 7 is fixedly connected with the top of the moving plate 15. Sliding grooves 14 are formed on both inner walls of the support frame 6. The inside of the two sliding grooves 14 is slidably connected with the moving plate 15. Start the first pushing cylinder 7, and its output end pushes the moving plate 15 to rise or fall along the sliding groove 14 of the support frame 6, thereby adjusting the height of the air inflating pump 16.

[0032] Further, a differential pressure sensor 17 is fixedly installed on the outer surface of the air inflating pump 16. The differential pressure sensor 17 real-time monitors the pressure difference inside and outside the battery pack water-cooled plate and transmits the data to the control system.

[0033] Working principle: When the staff needs to use the airtight detection equipment for the battery pack water-cooled plate, when it is necessary to detect battery pack water-cooled plates of different lengths and sizes, first place the battery pack water-cooled plate on the fixed plate 10. By operating, start the second push cylinder 8, and its output end pushes the connected moving frame 3 to drive the slider 11 to slide along the guide rail 2, thereby driving the two mounting frames 4 to move closer to or away from each other. As the two mounting frames 4 move closer, it will drive the two first connecting rods 9 to rotate and their positions to shift. The two first connecting rods 9 then drive the second connecting rod 12 to rotate and shift on the outer surface of the rotating shaft 21. As the mounting frames 4 move closer, the battery pack water-cooled plate can be clamped. By rotating the screw rod 5 at the top of the mounting frame 4, the pressing plate 13 at the bottom of the screw rod 5 descends and presses the battery pack water-cooled plate to achieve fixation. According to the thickness of the battery pack water-cooled plate, start the first push cylinder 7, and its output end pushes the moving plate 15 to rise or fall along the sliding groove 14 of the support frame 6, thereby adjusting the height of the air inflation pump 16. At the same time, start the drive motor 19, and its output end drives the threaded rod 20 to rotate. Since the threaded rod 20 is threadedly sleeved with the air inflation pump 16, and the air inflation pump 16 can slide in the rectangular groove 18, the rotation of the threaded rod 20 will drive the air inflation pump 16 to move in the horizontal direction, realizing the precise position adjustment of the air inflation pump 16 to adapt to battery pack water-cooled plates at different positions. The air inflation pump 16 is connected to the detection interface on the battery pack water-cooled plate through a pipeline. Start the air inflation pump 16 to inflate the battery pack water-cooled plate. During the inflation process, the differential pressure sensor 17 real-time monitors the pressure difference inside and outside the battery pack water-cooled plate and transmits the data to the control system. If there is a leak in the battery pack water-cooled plate, the pressure difference inside and outside will change, and the control system judges whether the airtightness of the battery pack water-cooled plate is qualified according to the data of the differential pressure sensor 17.

[0034] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection required by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A battery pack water-cooled plate airtight detection device, including a bottom plate (1), a heightening block is fixedly connected to the top of the bottom plate (1), and it is characterized in that: Above the bottom plate (1), there are two moving frames (3). The two moving frames (3) are located on both sides of the heightening block. At the tops of the two moving frames (3), mounting frames (4) are fixedly connected. At the top of the bottom plate (1), a support frame (6) is fixedly connected. The support frame (6) is located between the two moving frames (3). Inside the support frame (6), there is a moving plate (15). At the bottom of the moving plate (15), there is an air pump (16). Further included are: A clamping assembly, which is located above the bottom plate (1) and connected to the two moving frames (3), and is used to drive the two mounting frames (4) to move, so as to be applicable to clamping water-cooled plates of battery packs with different lengths and sizes; An adjustable detection assembly, which is located on the outer surface of the support frame (6) and connected to the air pump (16), and is used to drive the air pump (16) to adjust in height and horizontal direction, so as to be applicable to water-cooled plates of battery packs with different thicknesses.

2. The airtight detection device for the water-cooled plate of a battery pack according to claim 1, wherein: At the top of the bottom plate (1), four symmetrically distributed guide rails (2) are fixedly connected. The four guide rails (2) are all arranged in an L-shaped structure. At the tops of the four guide rails (2), sliders (11) are slidably connected. At the tops of the two sliders (11), they are fixedly connected to the bottoms of the corresponding moving frames (3). At the top of the bottom plate (1), a second push cylinder (8) is fixedly installed. The output end of the second push cylinder (8) is fixedly connected to the adjacent moving frame (3).

3. The airtight detection device for the water-cooled plate of a battery pack according to claim 1, wherein: The clamping assembly includes a first connecting rod (9), a fixed disk (10), a second connecting rod (12) and a rotating shaft (21). The outer surfaces of the two moving frames (3) are rotatably connected to the first connecting rod (9). The first connecting rods (9) are rotatably connected to the second connecting rod (12). At the top of the heightening block, a rotating shaft (21) is fixedly connected. The rotating shaft (21) is rotatably connected to the second connecting rod (12). At the top of the rotating shaft (21), a fixed disk (10) is fixedly connected. The fixed disk (10) is located above the second connecting rod (12).

4. A battery pack water-cooling plate airtightness detection device according to claim 1, characterized in that: The two mounting frames (4) are both arranged in an F-shaped structure. At the tops of the two mounting frames (4), screws (5) are threadedly connected. At the bottoms of the two screws (5), pressing plates (13) are fixedly connected.

5. The airtight detection device for the water-cooled plate of a battery pack according to claim 1, wherein: The adjustable detection assembly includes a rectangular groove (18), a driving motor (19) and a threaded rod (20). The moving plate (15) is arranged in a π-shaped structure. Inside the moving plate (15), the threaded rod (20) is rotatably connected. The outer surface of the threaded rod (20) is threadedly sleeved with the air pump (16). At the bottom of the moving plate (15), a rectangular groove (18) is opened. The rectangular groove (18) is slidably connected to the air pump (16). At the bottom of the moving plate (15), a driving motor (19) is fixedly installed. The output end of the driving motor (19) is fixedly connected to the end of the threaded rod (20).

6. The airtight detection device for the water-cooled plate of a battery pack according to claim 1, characterized in that: A first push cylinder (7) is fixedly installed at the top of the support frame (6), the output end of the first push cylinder (7) is fixedly connected to the top of the moving plate (15), sliding grooves (14) are formed in the inner walls on both sides of the support frame (6), and the moving plate (15) is slidably connected to the inside of the two sliding grooves (14).

7. A battery pack water-cooled plate airtight detection device according to claim 1, characterized in that: A differential pressure sensor (17) is fixedly installed on the outer surface of the air pump (16).

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