A type testing device for aluminum casing of battery cells

Abstract

This utility model discloses a shaping and testing device for aluminum shells of battery cells, including a water tank and a gantry mounting frame. A cylinder and a hot air blower are mounted on the upper side of the gantry mounting frame. A drying chamber is located between the gantry mounting frame and the water tank. The top of the cylinder piston rod passes through the drying chamber and is connected to a support plate. A support box is connected to the lower side of the support plate via a rotating cylinder. Fixed blocks are positioned opposite each other on the lower side of the support box. Grooves are formed on the outer walls of the fixed blocks. Top blocks slide relative to each other within the grooves of the two sets of fixed blocks. An air pump is mounted on the support plate. An air pipe is located inside the rotating cylinder and communicates with the inside of the support box. One end of the air pipe passes through the rotating cylinder and communicates with the air outlet of the air pump. A conveying pipe is located within the groove and communicates with the inside of the support box. The conveying pipe is connected to the top block via a telescopic cover. In traditional methods, the positioning head directly contacts the battery cell shell for movement, which obstructs a portion of the battery cell shell. This area requires manual adjustment and re-testing, which is very time-consuming. This utility model reduces the need for manual adjustment.

Description

Technical Field

[0001] This utility model relates to the technical field of battery cell shell testing equipment, and in particular to a type testing device for aluminum battery cell shells. Background Technology

[0002] A battery cell refers to a single electrochemical cell containing positive and negative electrodes. It is generally not used directly and is divided into three types: aluminum-cased cells, pouch cells, and cylindrical cells. The type of cell is usually chosen based on the application scenario. The cell is protected by an outer casing, which is usually made of aluminum.

[0003] Chinese utility model patent CN202421343676.6 discloses an aluminum alloy battery cell shell airtightness testing device, including a sealing test water tank with an open top. The water tank contains water for sealing tests, and an auxiliary mechanism is fixedly installed on the tank. The auxiliary mechanism includes a drying component and a driving component, both fixedly installed on the top of a gantry mounting frame. The driving component includes a cylinder fixedly installed at the middle of the upper surface of the gantry mounting frame. The lower end of the cylinder's output end passes through the top of the gantry mounting frame and is fixedly mounted with a connecting rod. A mounting plate is fixedly installed at the lower end of the connecting rod. Two positioning side plates are symmetrically fixedly installed on the lower end of the mounting plate. Horizontally arranged positioning screws are threaded through the positioning side plates. Positioning heads are rotatably installed at one end of each of the two positioning screws, close to each other, clamping the aluminum alloy battery cell shell. This utility model can automatically test the airtightness of the aluminum alloy battery cell shell and automatically dry it after testing.

[0004] However, the positioning head directly contacts the battery cell casing and drives it, which will block part of the battery cell casing. After being immersed in the water tank, it will cause the detection area to be missed. After the detection, the position of the battery cell casing needs to be changed by personnel to change the contact position between the positioning head and the battery cell casing, and then the detection is carried out again. The manual adjustment is very troublesome and the detection efficiency of the battery cell casing is low. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a shaping and testing device for aluminum casings of battery cells.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a shaping and testing device for aluminum shells of battery cells, comprising a water tank and a gantry mounting frame disposed on its outer wall, a cylinder and a hot air blower disposed on the upper side of the gantry mounting frame, a drying chamber disposed between the gantry mounting frame and the water tank, the top end of the piston rod of the cylinder passing through the drying chamber and connected to a support plate, a support box being connected to the lower side of the support plate via a rotating cylinder, fixed blocks being disposed opposite each other on the lower side of the support box, grooves being formed on the outer wall of the fixed blocks, top blocks sliding relative to each other within the grooves of the two sets of fixed blocks, an air pump being disposed on the support plate, an air pipe being disposed within the rotating cylinder, the air pipe communicating with the inside of the support box, one end of the air pipe away from the support box passing through the rotating cylinder and communicating with the air inlet of the air pump, a conveying pipe being disposed within the groove, the conveying pipe communicating with the inside of the support box, and the other end of the conveying pipe being connected to the top block via a telescopic cover.

[0007] Preferably, a motor is also provided on the support plate, the output shaft of the motor passes through the support plate, a driven wheel is sleeved on the outer wall of the rotating cylinder, and a driving wheel that meshes with the driven wheel is sleeved on the output shaft of the motor.

[0008] Preferably, the air pipe is provided with a rotary joint that connects to the air inlet of the air pump.

[0009] Preferably, a placement plate is arranged inside the water tank, and the lower side of the placement plate is connected to the bottom of the water tank through a support rod.

[0010] Preferably, the placement plate is provided with a friction pad.

[0011] Preferably, a slider is provided on the inner wall of the groove along the length of the support plate, and a groove is provided on the top block to slide in connection with the slider.

[0012] The beneficial effects of this utility model are as follows: By setting a rotating cylinder to rotatably connect the support box under the support plate, and fixing blocks are set opposite to each other under the support box, a groove is opened on the side wall of the fixing block, and a top block is slidably set in the groove. By slidably setting the top blocks in the grooves of the two sets of fixing blocks, the two sets of top blocks are attached to the inner wall of the battery cell shell to support the battery cell shell. By driving the rotating cylinder, the two sets of top blocks can be indirectly moved to change the attachment position with the inner wall of the battery cell shell. Compared with the prior art, this utility model can eliminate the need for manual adjustment of the attachment position between the top blocks and the inner wall of the battery cell shell, and the air tightness detection efficiency of the entire battery cell shell is higher. At the same time, by using an air pump in conjunction with a telescopic cover to push the top blocks, manual operation is further reduced, and the workload of personnel is reduced. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram illustrating a portion of the mechanism on the gantry mounting frame in one embodiment of the present invention;

[0014] Figure 2 This is a side sectional view of a portion of the mechanism on the gantry mounting frame according to one embodiment of the present invention;

[0015] Figure 3 for Figure 2 Enlarged view of section A;

[0016] Figure 4 This is an exploded view of a portion of the upper mechanism of the water tank in one embodiment of the present invention;

[0017] Figure 5 for Figure 4 Enlarged view of section B.

[0018] Reference numerals: 1. Water tank; 2. Gantry mounting frame; 3. Cylinder; 4. Hot air blower; 5. Drying oven; 6. Support plate; 7. Rotating cylinder; 8. Support box; 9. Fixing block; 10. Groove; 11. Top block; 12. Air pump; 13. Air pipe; 14. Conveying pipe; 15. Telescopic cover; 16. Motor; 17. Drive wheel; 18. Driven wheel; 19. Rotary joint; 20. Placement plate; 21. Support rod; 22. Friction pad; 23. Slider; 24. Slide groove; 25. Battery cell shell. Detailed Implementation

[0019] The following description is only a preferred embodiment of the present utility model. The scope of protection is not limited to this embodiment. All technical solutions that fall within the scope of the present utility model should be protected by the present utility model. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present utility model should also be considered within the scope of protection of the present utility model.

[0020] It should be noted that in this document, relational terms such as first and second, or "connecting plate one, connecting plate two," are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0021] The directional terms mentioned in this embodiment, such as "up," "down," "left," and "right," are merely used to help those skilled in the art understand the relationships between various features or parts in conjunction with the accompanying drawings.

[0022] In this embodiment, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] like Figures 1 to 5 As shown, a shaping and testing device for aluminum casings of battery cells includes a water tank 1 and a U-shaped gantry mounting frame 2 mounted on its outer wall. A hot air blower 4 and a cylinder 3 are respectively mounted on the upper left and right sides of the gantry mounting frame 2. A drying chamber 5 is positioned between the gantry mounting frame 2 and the water tank 1, and is fixed to the upper inner wall of the gantry mounting frame 2. The output end of the hot air blower 4 passes into the drying chamber 5. The piston rod of the cylinder 3 passes through the drying chamber 5 and is connected to a horizontal support plate 6. A rotating cylinder 7 is vertically rotatably mounted on the lower side of the support plate 6. A support box 8 is fixedly connected to the lower end of the rotating cylinder 7. The support box 8 is horizontally positioned. A driven wheel 18 is sleeved on the outer wall of the rotating cylinder 7. A motor 16 is mounted on the upper side of the support plate 6, and the output shaft of the motor 16 passes through... A drive wheel 17 that meshes with the driven wheel 18 is sleeved on the top of the output shaft of the support plate 6. An air pump 12 is also provided on the upper side of the support plate 6. An air pipe 13 is provided inside the rotating cylinder 7. One end of the air pipe 13 is connected to the inside of the support box 8, and the other end passes through the rotating cylinder 7 and is connected to the air outlet of the air pump 12. It should be noted that in this embodiment, the air pump 12 adopts a pipe that can allow air to enter and exit. The air pump 12 can supply or draw air to the air pipe 13 through the air outlet. A rotary joint 19 is provided at the upper end of the air pipe 13 and is connected to the air outlet of the air pump 12. The purpose is that when the rotating cylinder 7 is driven to rotate, the air pipe 13 will be driven synchronously. Through the connection of the rotary joint 19, the air outlet of the air pump 12 will not be driven.

[0024] L-shaped fixing blocks 9 are arranged opposite each other on the lower left and right sides of the support box 8. An L-shaped groove 10 is formed on the front side of the outer wall of each fixing block 9. An I-shaped top block 11 slides horizontally relative to each other within the grooves 10 of the two sets of fixing blocks 9. One end of the top block 11 is located within the groove 10, and the other end protrudes from the groove 10. Figure 3 As shown, a slider 23 is horizontally arranged on the upper left side of the groove 10, and a sliding groove 24 is opened on the upper side of the top block 11 to slide and connect with the slider 23. A conveying pipe 14 is arranged on the right side of the groove 10 and communicates with the inside of the support box 8. The end of the conveying pipe 14 away from the support box 8 is connected to the telescopic cover 15, and the left end of the telescopic cover 15 is connected to the right side of the top block 11.

[0025] An L-shaped placement plate 20 is provided at the lower end of the interior of the water tank 1. The lower side of the placement plate 20 is connected to the bottom of the interior of the water tank 1 by a support rod 21. The support rod 21 is vertically arranged. A friction pad 22 is provided on the upper side of the placement plate 20 to increase the contact friction force between the placement plate 20 and the battery cell shell 25 when the battery cell shell 25 is placed on the placement plate 20.

[0026] When personnel need to perform an airtightness test on the battery cell casing 25, they first place the battery cell casing 25 directly below the support plate 6, with the opening of the battery cell casing 25 facing upwards, so that the two sets of opposing top blocks 11 are located inside the battery cell casing 25. Then, the air pump 12 starts to intake air, which enters the support box 8 through the air pipe 13 and is then distributed into the two sets of delivery pipes 14, causing the telescopic cover 15 to extend. The telescopic cover 15 pushes the top blocks 11 outwards to contact the inner wall of the battery cell casing 25. Then, the cylinder 3 starts to extend, causing the entire battery cell casing 25 to be immersed in the water tank 1. Personnel observe whether there are any air bubbles. After the observation is completed, the cylinder 3 continues to move downwards, so that the lower side of the battery cell casing 25 is supported on the placement plate 20. Air pump 12 draws in air, and under the retraction of telescopic cover 15, top block 11 is no longer in contact with the inner wall of battery cell shell 25. Then motor 16 starts rotating forward, driving driven wheel 18 through drive wheel 17. Driven wheel 18 drives rotating cylinder 7. Rotating cylinder 7 drives support box 8. Support box 8 drives two sets of fixed blocks 9 to change their positions inside battery cell shell 25, making it easier for personnel to observe the airtightness of the area of ​​the inner wall of battery cell shell 25 that was originally in contact with top block 11. After observation, motor 16 reverses, indirectly driving top block 11 to return to its original position. Air pump 12 draws in air, top block 11 re-attaches to the inner wall of battery cell shell 25, cylinder 3 retracts, and battery cell shell 25 is moved out of water tank 1, completing the inspection and removal.

[0027] It should be noted that both the air pump 12 and the motor 16 are covered with protective shells (not shown in the attached diagram) to prevent water from entering.

[0028] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A shaping and testing device for aluminum casing of battery cells, comprising a water tank (1) and a gantry mounting frame (2) disposed on its outer wall, wherein a cylinder (3) and a hot air blower (4) are disposed on the upper side of the gantry mounting frame (2), and a drying box (5) is disposed between the gantry mounting frame (2) and the water tank (1). characterized in that The piston rod of the cylinder (3) passes through the drying box (5) and is connected to a support plate (6). The support plate (6) is connected to a support box (8) via a rotating cylinder (7) on its lower side. The support box (8) has fixed blocks (9) arranged opposite each other on its lower side. The outer wall of the fixed block (9) has a groove (10). The two sets of fixed blocks (9) have top blocks (11) sliding relative to each other in the groove (10). An air pump (12) is provided on the support plate (6), and an air pipe (13) is provided inside the rotating cylinder (7). The air pipe (13) is connected to the support box (8), and one end of the air pipe (13) away from the support box (8) passes through the rotating cylinder (7) and is connected to the air outlet of the air pump (12). A conveying pipe (14) is provided in the groove (10). The conveying pipe (14) is connected to the inside of the support box (8). The other end of the conveying pipe (14) is connected to the top block (11) through a telescopic cover (15).

2. The device for detecting the shape of an aluminum case for an electric core according to claim 1, wherein The support plate (6) is also provided with a motor (16), the output shaft of the motor (16) passes through the support plate (6), the outer wall of the rotating cylinder (7) is fitted with a driven wheel (18), and the output shaft of the motor (16) is fitted with a driving wheel (17) that meshes with the driven wheel (18).

3. The device for detecting the shape of an aluminum case for an electric core according to claim 1, wherein The air pipe (13) is provided with a rotary joint (19) which is connected to the air inlet of the air pump (12).

4. The device for detecting the shape of an aluminum case for an electric core according to claim 1, wherein The water tank (1) has a placement plate (20) arranged inside it. The lower side of the placement plate (20) is connected to the bottom of the water tank (1) through a support rod (21).

5. The device for detecting the shape of an aluminum case for an electric core according to claim 4, wherein A friction pad (22) is provided on the placement plate (20).

6. The device for detecting the shape of an aluminum can for an electric core according to claim 1, wherein A slider (23) is provided on the inner wall of the groove (10) along the length of the support plate (6), and a groove (24) is provided on the top block (11) to slide in connection with the slider (23).

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