Battery cell dust removal mechanism

Abstract

The dust removal mechanism of the battery cell comprises: a rotating shaft arranged on a rack panel through a bearing seat, the rotating shaft can rotate around its axis; a rotating disc arranged on the rotating shaft; a dust removal module arranged on the rotating disc, the dust removal module is arranged at intervals along the circumference and rotates with the rotating disc, the dust removal module comprises a pair of battery cell clamping arms for clamping the battery cell, and an upper dust suction cover and a lower dust suction cover respectively located above and below the battery cell clamping arms, the upper dust suction cover and the lower dust suction cover can cover the two end portions of the battery cell; a first dust collection cavity arranged at the top of the rotating shaft, the first dust collection cavity can rotate with the rotating shaft, the first dust collection cavity is connected with an external negative pressure source through a first rotary joint and is communicated with the inner cavity of the upper dust suction cover through a connecting branch pipe; the rotating shaft is a hollow rotating shaft, the cavity inside the rotating shaft constitutes a second dust collection cavity, the second dust collection cavity is connected with the external negative pressure source through a second rotary joint arranged at the bottom of the rotating shaft and is communicated with the inner cavity of the lower dust suction cover through a connecting branch pipe. The utility model can fully remove dust from the end face of the battery cell.

Description

Technical Field

[0001] This utility model belongs to the field of automated production equipment technology, specifically relating to a battery cell dust removal mechanism. Background Technology

[0002] With the rapid development of the lithium battery industry, the application of lithium batteries is becoming increasingly widespread, and users have higher and higher requirements for battery quality. Lithium battery manufacturing processes must also be continuously improved to meet these needs. Currently, some cylindrical lithium battery manufacturing processes include a flattening process, which involves flattening the positive and negative terminal surfaces of the battery electrode assembly using a flattening roller. This process flattens all the electrode tabs onto the same plane, reducing internal resistance and facilitating subsequent current collector welding, ensuring current conduction and welding stability. The flattening process generates a large amount of small particles and debris. To ensure battery quality, a dust removal device is usually installed at the flattening station. However, to ensure production efficiency, the dust removal time at the flattening station is often compressed, resulting in ineffective removal of dust particles from the electrode assembly surface, especially at electrode tab bends and material layer gaps. Therefore, it is necessary to add a secondary dust removal mechanism at a subsequent station to thoroughly remove dust from the flattened cells. Utility Model Content

[0003] The purpose of this invention is to provide a cell dust removal mechanism with good dust removal effect and low power consumption.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A battery cell dust removal mechanism includes: a rotating shaft mounted on a frame panel via a bearing seat, the rotating shaft being rotatable about its own axis; a turntable mounted on the rotating shaft; dust removal modules mounted on the turntable, the dust removal modules being arranged circumferentially and rotating with the turntable, the dust removal modules including a pair of battery cell clamping arms for clamping the battery cell, and an upper dust suction hood and a lower dust suction hood respectively located above and below the battery cell clamping arms, the upper dust suction hood and the lower dust suction hood being able to cover both ends of the battery cell within them; a first dust collection chamber mounted on the top of the rotating shaft, the first dust collection chamber being rotatable with the rotating shaft, the first dust collection chamber being connected to an external negative pressure source via a first rotary joint, and communicating with the inner cavity of the upper dust suction hood via a connecting branch pipe; the rotating shaft is a hollow rotating shaft, the cavity inside the rotating shaft forming a second dust collection chamber, the second dust collection chamber being connected to an external negative pressure source via a second rotary joint mounted on the bottom of the rotating shaft, and communicating with the inner cavity of the lower dust suction hood via a connecting branch pipe.

[0006] In some embodiments, the upper and lower dust hoods are arranged opposite each other vertically and can move relative to each other vertically.

[0007] In some embodiments, the dust removal module further includes a module mounting plate fixed to the turntable, a fixing frame fixed to the module mounting plate, a clamping arm mounting plate movably mounted on the fixing frame, a track groove plate movably mounted on the module mounting plate, and a groove plate connecting rod connected to the track groove plate; the clamping arms are mounted on the clamping arm mounting plate, and when the clamping arm mounting plate moves horizontally, it drives the clamping arms to move towards each other or away from each other; the track groove plate is provided with a third track groove, and the clamping arm mounting plate is provided with a second follower bearing, which is located in the third track groove; when the groove plate connecting rod moves up and down, it drives the track groove plate to move up and down, and moves along the third track groove through the second follower bearing, thereby driving the clamping arm mounting plate to move.

[0008] In some embodiments, the system further includes a first cam fixed to the bearing housing. The peripheral wall of the first cam is provided with a first track groove extending in a circumferential direction. A first follower bearing is provided on the groove plate connecting rod. The first follower bearing is disposed in the first track groove and can move along the first track groove as the dust removal module rotates with the turntable, thereby driving the groove plate connecting rod and the track groove plate to move up and down.

[0009] In some embodiments, the third trajectory groove is an inverted V-shaped groove.

[0010] In some embodiments, the dust removal module further includes an upper dust hood mounting plate and a lower dust hood mounting plate that are movably mounted on the module mounting plate. The upper dust hood mounting plate and the lower dust hood mounting plate are respectively located above and below the battery cell clamping arm. The upper dust hood and the lower dust hood are respectively mounted on the upper dust hood mounting plate and the lower dust hood mounting plate. The module mounting plate is provided with a rotating swing block mounted thereon via a rotating shaft. Each end of the rotating swing block is connected to a swing link. Each swing link is connected to the upper dust hood mounting plate and the lower dust hood mounting plate respectively. When the rotating swing block rotates around the rotating shaft, it can synchronously drive the upper dust hood mounting plate and the lower dust hood mounting plate to move in opposite directions through the swing links respectively.

[0011] In some embodiments, the module mounting plate is provided with a cutout, and one end of the upper dust hood mounting plate and the lower dust hood mounting plate can pass through the cutout. The rotating swing block and the swing linkage are provided on the back of the module mounting plate.

[0012] In some embodiments, the system further includes a follower bearing mounting plate connected to the lower dust hood mounting plate and a second cam fixed to the bearing seat; the follower bearing mounting plate is provided with a second follower bearing; the peripheral wall of the second cam is provided with a second track groove extending in the circumferential direction, the second follower bearing is disposed in the second track groove, and can move along the second track groove during the process of the dust removal module rotating with the turntable, thereby driving the follower bearing mounting plate, the upper dust hood mounting plate and the lower dust hood mounting plate to move up and down.

[0013] In some embodiments, the system further includes a linear bearing disposed on the upper dust cover mounting plate, a guide rod passing through the linear bearing, the guide rod being connected to the upper dust cover, and a buffer spring sleeved on the guide rod being disposed between the upper dust cover mounting plate and the upper dust cover.

[0014] And / or, it also includes a linear bearing disposed on the lower dust hood mounting plate, a guide rod passing through the linear bearing, the guide rod being connected to the lower dust hood, and a buffer spring sleeved on the guide rod being disposed between the lower dust hood mounting plate and the lower dust hood.

[0015] In some embodiments, a fixing bracket disposed on the rack panel is further included. The fixing bracket is inverted L-shaped, with its bottom fixed to the rack panel and its top fixed to the first rotary joint.

[0016] As can be seen from the above technical solution, this utility model sets several dust removal modules on the turntable, which can simultaneously perform dust removal operations on multiple battery cells, improving efficiency. At the same time, the upper and lower dust suction hoods of the dust removal modules cover the ends of the battery cells, and the negative pressure suction of the flattened end face can effectively capture dust on the surface of the battery cell electrode assembly, especially in fine parts such as the electrode tab bending points and material layer gaps, resulting in good dust removal effect. Moreover, the upper and lower dust suction hoods cover the ends of the battery cells and work with the first dust collection chamber and the second dust collection chamber to simultaneously suction dust from both ends of the battery cells, resulting in better sealing. This not only improves the dust removal effect but also reduces the power of the suction equipment, which helps to reduce costs. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the cell dust removal mechanism according to an embodiment of the present invention;

[0019] Figure 2 This is a cross-sectional view of the cell dust removal mechanism according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the dust removal module installed on the turntable according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the battery cell clamp arm being assembled on the module mounting plate according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the battery cell clamp arm assembled on the module mounting plate at another angle according to an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the dust collection cover being assembled on the module mounting plate according to an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the dust cover being assembled on the module mounting plate from another angle, according to an embodiment of the present invention.

[0025] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings. In the detailed description of the embodiments of the present invention, for ease of explanation, the drawings illustrating the device structure will be partially enlarged without adhering to the general scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. It should be noted that the drawings are in a simplified form and use non-precise scales, solely for the purpose of conveniently and clearly illustrating the embodiments of the present invention. Additionally, in the description of this application, terms such as "first" and "second" are used only to distinguish descriptions and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Terms such as "positive," "negative," "bottom," "upper," "lower," "front," "rear," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can also refer to the internal connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, the cell dust removal mechanism of this embodiment includes a dust removal module 1, a turntable 2, a rotating shaft 3, a first dust collection chamber 4, a second dust collection chamber 5, a bearing seat 6, a first rotary joint 7, a second rotary joint 8, and a frame panel 20.

[0029] The frame panel 20 is a fixed mounting plate, and the cell dust removal mechanism is mounted on the frame panel 20. The bearing housing 6 is fixedly mounted on the frame panel 20, and the rotating shaft 3 passes through the bearing housing 6, rotating around its own axis under the drive of an external rotary drive unit (not shown). Specifically, the rotary drive unit can be a motor, and the motor's output shaft can drive the rotating shaft 3 to rotate via transmission components such as gears, belts, synchronous pulleys, and synchronous belts. In this embodiment, gears are used as the transmission component. Meshing gears 9 are respectively installed on the motor's output shaft and the rotating shaft 3, driving the output shaft 3 to rotate through the transmission of the gears 9.

[0030] The turntable 2 is mounted on the rotating shaft 3, located above the bearing seat 6. When the rotating shaft 3 rotates, it drives the turntable 2 to rotate as well. The top of the rotating shaft 3 extends upward through the turntable 2. The first dust collection chamber 4 is located on the top of the rotating shaft 3 and can rotate with the rotating shaft 3. The first dust collection chamber 4 is a hollow box. The first rotary joint 7 is located on the top of the first dust collection chamber 4 and communicates with the interior of the first dust collection chamber 4. The first rotary joint 7 is connected to an external negative pressure source (not shown) through a pipe (not shown). Under the action of the negative pressure source (such as a vacuum pump), the dust particles in the first dust collection chamber 4 are extracted by negative pressure suction. The first dust collection chamber 4 is also provided with several pipe joints 10 that communicate with the interior of the first dust collection chamber 4. The pipe joints 10 are connected to the inner cavity of the upper dust suction hood of the dust removal module 1 through connecting branch pipes 11, thereby concentrating the dust particles in the inner cavity of the upper dust suction hood into the first dust collection chamber 4.

[0031] The second dust collection chamber 5 is disposed inside the rotating shaft 3. In this embodiment, the rotating shaft 3 is a hollow rotating shaft, and its internal cavity constitutes the second dust collection chamber 5. Several pipe joints 10 communicating with the interior of the second dust collection chamber 5 are provided on the outer peripheral wall of the rotating shaft 3. The pipe joints 10 are connected to the lower dust suction hood of the dust removal module 1 through the connecting branch 11, thereby concentrating the dust particles in the inner cavity of the lower dust suction hood into the second dust collection chamber 5.

[0032] The second rotary joint 8 is located at the bottom of the rotating shaft 3 and is connected to the interior of the second dust collection chamber 5. The second rotary joint 8 is connected to an external negative pressure source (not shown) through a pipe (not shown). Under the action of the negative pressure source, the dust particles in the second dust collection chamber 5 are extracted by negative pressure suction.

[0033] Optionally, this embodiment also includes a fixed bracket 12, which is an inverted L-shaped frame. The bottom of the fixed bracket 12 is fixed to the frame panel 20, and the top is fixed to the first rotary joint 7, which plays an auxiliary role in fixing the rotating shaft 2.

[0034] Combination Figure 1 , Figure 3 , Figure 4 and Figure 5 The dust removal module 1 in this embodiment includes a module mounting plate 1-1, a battery cell clamping arm 1-2, an upper dust suction hood 1-3, a lower dust suction hood 1-4, a fixing frame 1-5, a track groove plate 1-6, a clamping arm mounting plate 1-7, an upper dust suction hood mounting plate 1-8, a lower dust suction hood mounting plate 1-9, a groove plate connecting rod 1-10, a rotating swing block 1-11, and a swing connecting rod 1-12.

[0035] The module mounting plate 1-1 serves as the mounting base for the various components of the dust removal module 1. Each component of the dust removal module 1 is directly or indirectly mounted on the module mounting plate 1-1. The module mounting plate 1-1 is fixed to the turntable 2, allowing the dust removal module 1 to be mounted on the turntable 2 and rotate with it. Multiple dust removal modules 1 are spaced circumferentially on the turntable 2. Each dust removal module 1 is used to remove dust from one battery cell. Multiple dust removal modules 1 on the turntable 2 can simultaneously perform dust removal operations on multiple battery cells to improve efficiency.

[0036] The fixing frame 1-5 is mounted on the module mounting plate 1-1. The cell clamping arms 1-2 are mounted on the clamping arm mounting plate 1-7, which is movably mounted on the fixing frame 1-5 in a horizontal direction. The two cell clamping arms 1-2 are horizontally opposite each other and are used to clamp the cell together. The two clamping arm mounting plates 1-7 can move relative to each other in a horizontal direction, such as moving closer or further apart, thereby clamping or releasing the two cell clamping arms 1-2. In this embodiment, a horizontally extending first slide rail 1-5a is provided on the fixing frame 1-5, and the clamping arm mounting plate 1-7 is mounted on the first slide rail 1-5a and can move horizontally along the first slide rail 1-5a.

[0037] This embodiment uses a cam-driven method to control the movement of the cell clamping arms 1-2. For example... Figure 1 , Figure 2 and Figure 3 As shown, this embodiment also includes a first cam 13, which is fixed to the bearing seat 6, meaning that the first cam 13 does not rotate with the rotating shaft 3. A first track groove 13a for controlling the movement of the clamping arm is machined on the first cam 13, and the first track groove 13a extends circumferentially on the peripheral wall of the first cam 13.

[0038] A movable track plate 1-6 is provided below the fixed frame 1-5. The track plate 1-6 is connected to the track plate connecting rod 1-10. A first follower bearing 1-13 is provided at the bottom of the track plate connecting rod 1-10. The first follower bearing 1-13 can be accommodated in the first track groove 13a and can move along the first track groove 13a during the rotation of the dust removal module 1 following the turntable 2. When the first follower bearing 1-13 moves along the first track groove 13a, it will move up or down with the first track groove 13a, thereby driving the track plate connecting rod 1-10 to rise or fall, and further driving the track plate 1-6 to move up and down through the track plate connecting rod 1-10. In this embodiment, a pair of longitudinally extending second slide rails 1-1a are provided on the module mounting plate 1-1. The track plate 1-6 is set on the second slide rails 1-1a and moves up and down along the second slide rails 1-1a under the drive of the track plate connecting rod 1-10.

[0039] The track groove plate 1-6 is machined with a third track groove 1-6a for controlling the movement of the battery cell clamping arms. In this embodiment, the third track groove 1-6a is an inverted V-shaped groove. Each clamping arm mounting plate 1-7 is provided with a second follower bearing 1-14 that can be accommodated in the third track groove 1-6a. When the track groove plate 1-6 moves up and down, the second follower bearing 1-14 in the third track groove 1-6a moves 2 following the track groove plate 1-6. Restricted by the third track groove 1-6a, it drives the clamping arm mounting plate 1-7 to move horizontally, thereby causing the battery cell clamping arms 1-2 located on the clamping arm mounting plate 1-7 to move towards each other to clamp the battery cell, or to move away from each other to release the battery cell. This realizes the control of the movement of the battery cell clamping arms by the cam drive structure.

[0040] like Figure 6 and Figure 7 As shown, an upper dust collection hood 1-3 and a lower dust collection hood 1-4 are respectively provided above and below the battery cell clamping arm 1-2. The upper dust collection hood 1-3 and the lower dust collection hood 1-4 have the same structure and are arranged opposite to each other. Both the upper dust collection hood 1-3 and the lower dust collection hood 1-4 have a cavity inside which the end of the battery cell can be inserted. The cavity of the upper dust collection hood 1-3 is connected to the first dust collection chamber 4 through a connecting branch pipe 11, and the cavity of the lower dust collection hood 1-4 is connected to the second dust collection chamber 5 through a connecting branch pipe 11.

[0041] In this embodiment, the upper dust suction hood 1-3 is mounted on the upper dust suction hood mounting plate 1-8. The upper dust suction hood module mounting plate 1-8 is mounted on the second slide rail 1-1a of the mounting plate 1-1 and can move up and down along the second slide rail 1-1a, thereby driving the upper dust suction hood 1-3 to move up and down. When the upper dust suction hood 1-3 moves downward to the position where the top of the battery cell 100 is located, the top of the battery cell can extend into the cavity of the upper dust suction hood 1-3, and the dust particles on the top end face of the battery cell can be removed by negative pressure suction.

[0042] The lower dust hood 1-4 is mounted on the lower dust hood mounting plate 1-9, which is mounted on the second slide rail 1-1a of the module mounting plate 1-1 and can move up and down along the second slide rail 1-1a, thereby driving the lower dust hood 1-4 to move up and down. When the lower dust hood 1-4 moves upward to the position where the battery cell 100 is located, the top of the battery cell can extend into the cavity of the lower dust hood 1-4, and the dust particles on the bottom end face of the battery cell can be removed by negative pressure suction.

[0043] To ensure synchronized movement of the upper and lower dust hoods, this embodiment uses a second cam 14 to control their vertical movement. Figure 1 , Figure 2 and Figure 3 As shown, the second cam 14 is fixed to the bearing seat 6, meaning the second cam 14 does not rotate with the rotating shaft 3. In this embodiment, the second cam 14 is located above the first cam 13. A second track groove 14a for controlling the movement of the clamping arm is machined on the second cam 14, and the second track groove 14a extends circumferentially on the peripheral wall of the second cam 14.

[0044] like Figure 1 , Figure 3 , Figure 6 and Figure 7As shown, to facilitate component installation and avoid interference, a rotating swing block 1-11 is provided on the back side of the module mounting plate 1-1 (the side opposite to where the dust hood is located). The rotating swing block 1-11 is mounted on the module mounting plate 1-1 via a rotating shaft and can swing around the rotating shaft. A perforation 1-1b is machined on the module mounting plate 1-1 for the ends of the upper dust hood mounting plate 1-8 and the lower dust hood mounting plate 1-9 to pass through. A swing link 1-12 is connected to each end of the rotating swing block 1-11. One swing link 1-12 is connected to the end of the upper dust hood mounting plate 1-8 that passes through the perforation 1-1b, and the other swing link 1-12 is connected to the end of the lower dust hood mounting plate 1-9 that passes through the perforation 1-1b. The lower dust hood mounting plate 1-9 is connected to a follower bearing mounting plate 1-13. A second follower bearing 1-15 is provided on the follower bearing mounting plate 1-13. The second follower bearing 1-15 can be accommodated in the second track groove 14a and can move along the second track groove 14a. When the second follower bearing 1-15 moves along the second track groove 14a, it will move up or down with the second track groove 14a, thereby driving the lower dust hood mounting plate 1-9 (lower dust hood 1-4) to move up and down. The lower dust hood mounting plate 1-9 drives the rotating swing block 1-11 to swing around the rotation axis through the swing linkage 1-12 connected to it. The rotating swing block 1-11 further drives another swing linkage 1-12 to move up and down, thereby driving the upper dust hood mounting plate 1-8 (upper dust hood 1-3) to move synchronously. Through the transmission of the rotating swing block 1-11 and the swing linkage 1-12, the upper dust hood 1-3 and the lower dust hood 1-4 move synchronously and in opposite directions. That is, when the upper dust hood 1-3 moves down, the lower dust hood 1-4 moves up, and when the upper dust hood 1-3 moves up, the lower dust hood 1-4 moves up. Thus, the upper and lower dust hoods can be synchronously placed on both ends of the battery cell or on both ends away from the battery cell.

[0045] Optionally, in some embodiments, a linear bearing 1-16 is provided on the upper dust hood mounting plate 1-8, and a guide rod 1-17 passes through the linear bearing 1-16 and is connected to the upper dust hood 1-3. The linear bearing 1-16 and the guide rod 1-17 guide the upper dust hood 1-3, and a buffer spring (not shown) is installed between the upper dust hood mounting plate 1-8 and the upper dust hood 1-3. The buffer spring is sleeved on the guide rod 1-17.

[0046] A linear bearing 1-16 is also provided on the lower dust hood mounting plate 1-9. The guide rod 1-17 passes through the linear bearing 1-16 and is connected to the lower dust hood 1-4. The linear bearing 1-16 and the guide rod 1-17 guide the lower dust hood 1-4. A buffer spring (not shown) is provided between the lower dust hood mounting plate 1-9 and the lower dust hood 1-4 and is fitted on the guide rod 1-17.

[0047] The dust removal process of the battery cell dust removal mechanism in this embodiment will be described below with reference to the accompanying drawings.

[0048] After the electrode tabs of the battery cell are flattened at the flattening station, they are transported to the dust removal modules 1 of the turntable 3 by battery cell transfer components such as robotic arms and grippers. During the rotation of the turntable 2, the battery cell clamping arms 1-2 of each dust removal module 1 clamp the battery cell that is transferred in sequence. As the turntable 2 rotates, the second follower bearing 1-14 moves along the second track groove 14a of the second cam 14, and through the linkage of the rotating swing block 1-11 and the swing connecting rod 1-12, the upper dust suction hood 1-3 and the lower dust suction hood 1-4 simultaneously cover the two ends of the battery cell 100 to perform negative pressure dust removal operation on the ends of the battery cell.

[0049] This embodiment controls the movement of the battery cell clamping arm and the upper and lower dust collection hoods through a cam-driven structure. The structure is simple, the transmission is stable, the cost is relatively low, and the space utilization rate is high. Furthermore, multiple dust collection modules are set on a single turntable, which can extend the dust collection time at each station. Simultaneously, the dust collection hood is fitted over the end of the battery cell for negative pressure dust collection, covering even the smallest areas such as the tab bends and material layer gaps. This solves the problem of poor sealing in existing dust collection mechanisms, which cannot effectively capture dust from the electrode surface, especially in the tab bends and material layer gaps, thus enhancing the dust collection effect. The fact that the battery cell end is fitted in a relatively enclosed space for dust collection also reduces the overall power consumption of the equipment.

[0050] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cell dust removal mechanism, characterized in that, include: The rotating shaft, which is mounted on the frame panel via a bearing housing, can rotate about its own axis. A turntable is mounted on the rotating shaft; The dust removal module is arranged on the turntable at intervals along the circumference and rotates with the turntable. The dust removal module includes a pair of battery cell clamping arms for clamping the battery cell, and an upper dust suction hood and a lower dust suction hood located above and below the battery cell clamping arms, respectively. The upper dust suction hood and the lower dust suction hood can cover both ends of the battery cell inside them. The first dust collection chamber is located at the top of the rotating shaft. The first dust collection chamber can rotate with the rotating shaft. The first dust collection chamber is connected to an external negative pressure source through a first rotary joint and is connected to the inner cavity of the upper dust collection hood through a connecting branch pipe. The rotating shaft is a hollow rotating shaft, and the cavity inside the rotating shaft forms a second dust collection chamber. The second dust collection chamber is connected to an external negative pressure source through a second rotary joint located at the bottom of the rotating shaft, and is connected to the inner cavity of the lower dust collection hood through a connecting branch pipe.

2. The cell dust removal mechanism as described in claim 1, characterized in that: The upper and lower dust hoods are arranged opposite each other and can move relative to each other.

3. The cell dust removal mechanism as described in claim 2, characterized in that: The dust removal module also includes a module mounting plate fixed to the turntable, a fixing frame fixed to the module mounting plate, a clamping arm mounting plate that can be horizontally moved on the fixing frame, a track groove plate that can be vertically moved on the module mounting plate, and a groove plate connecting rod connected to the track groove plate. The clamping arms are disposed on the clamping arm mounting plate. When the clamping arm mounting plate moves horizontally, it causes the clamping arms to move toward each other or away from each other. The track groove plate is provided with a third track groove, and the clamping arm mounting plate is provided with a second follower bearing. The second follower bearing is located in the third track groove. When the track groove plate moves up and down, it moves along the third track groove through the second follower bearing and drives the clamping arm mounting plate to move.

4. The cell dust removal mechanism as described in claim 3, characterized in that: It also includes a first cam fixed to the bearing seat. The peripheral wall of the first cam is provided with a first track groove extending in the circumferential direction. A first follower bearing is provided on the groove plate connecting rod. The first follower bearing is located in the first track groove and can move along the first track groove as the dust removal module rotates with the turntable, thereby driving the groove plate connecting rod and the track groove plate to move up and down.

5. The cell dust removal mechanism as described in claim 3, characterized in that: The third trajectory groove is an inverted V-shaped groove.

6. The cell dust removal mechanism as described in claim 3, characterized in that: The dust removal module also includes an upper dust hood mounting plate and a lower dust hood mounting plate that are movable up and down on the module mounting plate. The upper dust hood mounting plate and the lower dust hood mounting plate are respectively located above and below the battery cell clamping arm. The upper dust hood and the lower dust hood are respectively mounted on the upper dust hood mounting plate and the lower dust hood mounting plate. The module mounting plate is provided with a rotating swing block mounted on it via a rotating shaft. Each end of the rotating swing block is connected to a swing link. Each swing link is connected to the upper dust hood mounting plate and the lower dust hood mounting plate respectively. When the rotating swing block rotates around the rotating shaft, it can synchronously drive the upper dust hood mounting plate and the lower dust hood mounting plate to move in opposite directions through the swing links respectively.

7. The cell dust removal mechanism as described in claim 6, characterized in that: The module mounting plate has a cutout, and one end of the upper dust hood mounting plate and the lower dust hood mounting plate can pass through the cutout. The rotating swing block and the swing connecting rod are located on the back of the module mounting plate.

8. The cell dust removal mechanism as described in claim 6, characterized in that: It also includes a follower bearing mounting plate connected to the lower dust hood mounting plate and a second cam fixed to the bearing seat; A second follower bearing is provided on the follower bearing mounting plate; The second cam has a second track groove extending in the circumferential direction on its peripheral wall. The second follower bearing is disposed in the second track groove and can move along the second track groove as the dust removal module rotates with the turntable, thereby driving the follower bearing mounting plate, the upper dust hood mounting plate and the lower dust hood mounting plate to move up and down.

9. The cell dust removal mechanism as described in claim 8, characterized in that: It also includes a linear bearing mounted on the upper dust cover mounting plate, a guide rod passing through the linear bearing, the guide rod being connected to the upper dust cover, and a buffer spring sleeved on the guide rod being provided between the upper dust cover mounting plate and the upper dust cover; And / or, it also includes a linear bearing disposed on the lower dust hood mounting plate, a guide rod passing through the linear bearing, the guide rod being connected to the lower dust hood, and a buffer spring sleeved on the guide rod being disposed between the lower dust hood mounting plate and the lower dust hood.

10. The cell dust removal mechanism as described in claim 1, characterized in that: It also includes a fixed bracket disposed on the rack panel, the fixed bracket being inverted L-shaped, the bottom of the fixed bracket being fixed to the rack panel, and the top of the fixed bracket being fixed to the first rotary joint.

Images