Electrode assembly clamping device and spraying equipment

Abstract

The utility model relates to the technical field of batteries, and discloses an electrode assembly clamping device and spraying equipment, the electrode assembly clamping device comprises a first arm body and a second arm body, the first arm body is provided with a first rotating end and a first connecting end, the first connecting end is provided with a clamping assembly used for clamping an electrode assembly, and the second arm body is provided with a second rotating end and a second connecting end; the second rotating end is rotatably connected with the first rotating end through a rotating connecting piece, the second connecting end is provided with a covering assembly used for covering the tab, the second arm body is suitable for being rotatably switched between a first position and a second position, and in the state of the first position, the second arm body is far away from the clamping assembly, and in the state of the second position, the covering assembly covers the tab. According to the electrode assembly clamping device and the spraying equipment disclosed by the invention, the insulating substance can be prevented from being sprayed on the tabs of the electrode assembly.

Description

Technical Field

[0001] This application relates to the field of battery technology, specifically to electrode assembly clamping devices and spraying equipment. Background Technology

[0002] With the rapid development of the battery industry, battery safety has received increasing attention. Currently, the main focus of addressing battery safety issues is on improving and controlling the materials themselves, product design, and manufacturing process.

[0003] The electrode components in a battery are mainly manufactured through winding or stacking processes. These components are then assembled with the top cover, casing, and other parts to form the battery. During assembly and use, the end faces of the electrode components can easily come into contact with the casing or other components, potentially causing short circuits and other safety issues. To improve safety during assembly and use, an insulating material needs to be sprayed onto the end faces of the electrode components to protect them and prevent short circuits. In related technologies, a spray gun is used to apply the insulating material to the electrode components. However, the precision of the insulating material application cannot be guaranteed, and it can easily be sprayed onto the tabs of the electrode components. These tabs need to be directly electrically connected to the battery terminals or indirectly connected via adapters to allow current to flow in and out. If the insulating material is sprayed onto the tabs, it may prevent them from conducting electricity or reduce their conductive area, ultimately causing the battery to malfunction. Utility Model Content

[0004] In view of this, this application provides an electrode assembly clamping device and a spraying device to prevent insulating material from being sprayed onto the electrode tabs.

[0005] In a first aspect, this application provides an electrode assembly clamping device, comprising:

[0006] The first arm body is provided with a first rotating end and a first connecting end, and the first connecting end is provided with a clamping component for clamping the electrode assembly.

[0007] The second arm has a second rotating end and a second connecting end. The second rotating end is rotatably connected to the first rotating end through a rotating connector. The second connecting end is equipped with a covering component for covering the tab. The second arm is adapted to rotate and switch between a first position and a second position around the rotating connector so that the covering component covers or avoids the tab.

[0008] Beneficial effects: Before applying insulating material to the electrode assembly during production, the electrode assembly clamping device provided in this application can be used to clamp the electrode assembly. Specifically, the operator can rotate the second arm to the first position, moving the covering component away from the clamping component, and then clamp the electrode assembly onto the clamping component. Afterwards, the second arm is rotated again to the second position, where the covering component covers the electrode tab, and the clamping component clamps the electrode assembly, thus fixing the electrode assembly and ensuring that the covering component accurately covers the electrode tab. When the insulating material is sprayed onto the end face of the electrode assembly with the electrode tab in the spraying equipment, it prevents the insulating material from being sprayed onto the electrode tab.

[0009] In one alternative implementation, the clamping assembly includes:

[0010] Mounting plate, installed at the first connection end;

[0011] The first clamping plate is fixedly connected to the mounting plate;

[0012] The second clamping plate is rotatably connected to the mounting plate, and a clamping gap for clamping the electrode assembly is formed between the second clamping plate and the first clamping plate.

[0013] A driving component is installed at the first connecting end. The driving end of the driving component is hinged to the second clamping plate. The driving component drives the second clamping plate to rotate in order to clamp the electrode assembly.

[0014] In one alternative embodiment, the second clamping plate is provided with two protrusions, and a connecting shaft is connected between the two protrusions. The driving end of the driving member is rotatably connected to the connecting shaft.

[0015] In one optional embodiment, the mounting plate is provided with a connection hole, and the first arm body is provided with a mounting hole corresponding to the connection hole. The connector passes through the connection hole and the mounting hole to connect the mounting plate to the first arm body.

[0016] In one alternative embodiment, the driving component is configured as a driving cylinder, the cylinder barrel of which is hinged to the first arm body, and the piston rod of which is rotatably connected to the connecting shaft.

[0017] In one optional embodiment, the covering assembly includes an adjusting arm and a tab cover. The second connecting end is provided with an adjusting groove along the length direction of the second arm. The tab cover is installed at one end of the adjusting arm, and the other end of the adjusting arm passes through the adjusting groove and is slidably connected thereto.

[0018] In one optional embodiment, an adjustment hole is provided on the side wall opposite to the adjustment groove, and a through hole is provided on the adjustment arm corresponding to the adjustment hole. The locking member passes through the adjustment hole and the through hole to lock the adjustment arm in the adjustment groove.

[0019] In one alternative implementation, the electrode cover includes:

[0020] The first cover is installed on the adjusting arm;

[0021] The adjusting cylinder is installed at the end of the adjusting arm away from the second arm body;

[0022] The second cover is mounted on the piston rod of the adjusting cylinder to adjust the distance from the first cover.

[0023] In one alternative embodiment, a mounting shaft is also included, one end of which is connected to a rotating connector, and the other end is used to connect to a spraying device.

[0024] Secondly, this application also provides a spraying device, including: a frame, a spraying mechanism and an electrode assembly clamping device, wherein the electrode assembly clamping device and the spraying mechanism are both mounted on the frame. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of an electrode assembly clamping device according to an embodiment of this application;

[0027] Figure 2 for Figure 1 A magnified view of part A in the diagram;

[0028] Figure 3 for Figure 1 A magnified view of part B in the diagram.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. First arm body; 101 First rotating end; 102 First connecting end; 2. Clamping assembly; 201 Mounting plate; 202 First clamping plate; 203 Second clamping plate; 2031 Protrusion; 2032 Connecting shaft; 204 Driving component; 3. Second arm body; 301 Second rotating end; 302 Second connecting end; 4. Rotating connecting component; 401 First U-shaped plate; 402 Second U-shaped plate; 403 Third U-shaped plate; 5. Covering assembly; 501 Adjusting arm; 502 Electrode cover; 5021 First cover; 5022 Adjusting cylinder; 5023 Second cover; 5024 First mounting component; 5025 Second mounting component; 6. Connecting component; 7. Adjusting hole; 8. Locking bolt; 9. Locking nut; 10. Fixing bolt; 11. Mounting shaft; 12. Hinge joint. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] The following is combined with Figures 1 to 3 This describes an embodiment of the present application.

[0033] According to an embodiment of this application, in one aspect, an electrode assembly clamping device is provided, including: a first arm body 1 and a second arm body 3;

[0034] Specifically, the first arm body 1 is provided with a first rotating end 101 and a first connecting end 102. The first connecting end 102 is provided with a clamping component 2 for clamping the electrode assembly. The second arm body 3 is provided with a second rotating end 301 and a second connecting end 302. The second rotating end 301 is rotatably connected to the first rotating end 101 through a rotating connector 4. The second connecting end 302 is equipped with a covering component 5 for covering the electrode tab. The second arm body 3 is adapted to rotate and switch between a first position and a second position around the rotating connector 4 so that the covering component 5 covers or avoids the electrode tab.

[0035] Before applying insulating material to the electrode assembly during production, the electrode assembly clamping device provided in this application can be used to clamp the electrode assembly. Specifically, the operator can rotate the second arm 3 to a first position, moving the covering component 5 away from the clamping component 2, and then clamp the electrode assembly onto the clamping component 2. Afterward, the second arm 3 is rotated again to a second position, where the covering component 5 covers the electrode tab, and the clamping component 2 clamps the electrode assembly, thus fixing it in place and ensuring that the covering component 5 accurately covers the electrode tab. When the insulating material is sprayed onto the end face of the electrode assembly with the electrode tab in the spraying equipment, this prevents the insulating material from being sprayed onto the electrode tab.

[0036] In a specific embodiment, such as Figure 1 As shown, the first arm body 1 is an L-shaped structure formed by connecting the first horizontal arm and the first vertical arm. The first horizontal arm of the first arm body 1 is equipped with a clamping assembly 2, and one end of the first vertical arm is rotatably connected to the second rotating end 301 of the second arm body 3.

[0037] More specifically, such as Figure 1 As shown, the second arm 3 is an L-shaped structure formed by connecting the second horizontal arm and the second vertical arm. The second horizontal arm of the second arm 3 is equipped with a cover component 5. One end of the second vertical arm is rotatably connected to one end of the first vertical arm. When the second arm 3 is in the second position, the first horizontal arm is parallel to the second horizontal arm.

[0038] In one embodiment, such as Figure 1 As shown, the clamping assembly 2 includes: a mounting plate 201, a first clamping plate 202, and a second clamping plate 203.

[0039] Specifically, the mounting plate 201 is mounted on the first connecting end 102, the first clamping plate 202 is fixedly connected to the mounting plate 201, the second clamping plate 203 is rotatably connected to the mounting plate 201, and a clamping gap for clamping the electrode assembly is formed between the second clamping plate 203 and the first clamping plate 202. The driving member 204 is mounted on the first connecting end 102, and the driving end of the driving member 204 is hinged to the second clamping plate 203. The driving member 204 drives the second clamping plate 203 to rotate to clamp the electrode assembly.

[0040] The driving end of the driving component 204 can drive the second clamping plate 203 to rotate, so that the second clamping plate 203 moves closer to or further away from the first clamping plate 202, adjusting the size of the clamping gap between the second clamping plate 203 and the first clamping plate 202. The second clamping plate 203 and the first clamping plate 202 clamp the electrode assembly. The second arm 3 is rotated so that the second arm 3 is in the second position. The covering component 5 covers the electrode tabs, preventing the insulating material from being sprayed onto the electrode tabs when the spraying equipment sprays insulating material onto the end face of the electrode assembly where the electrode tabs are set.

[0041] In one embodiment, such as Figure 2 As shown, the second clamping plate 203 is provided with two protrusions 2031, and a connecting shaft 2032 is connected between the two protrusions 2031. The driving end of the driving member 204 is rotatably connected to the connecting shaft 2032.

[0042] The axial direction of the connecting shaft 2032 can be perpendicular to the direction of the first cross arm.

[0043] In one embodiment, the mounting plate 201 is provided with a connection hole, and the first arm body 1 is provided with a mounting hole corresponding to the connection hole. The connector 6 passes through the connection hole and the mounting hole to connect the mounting plate 201 to the first arm body 1.

[0044] Among them, the connector 6 can be a bolt or pin or other insert, and the bolt or pin passes through the connection hole and the mounting hole to fix the mounting plate 201 to the first arm body 1.

[0045] In one embodiment, the driving component 204 is configured as a driving cylinder, the cylinder barrel of the driving cylinder is hinged to the first arm body 1, and the piston rod of the driving cylinder is rotatably connected to the connecting shaft 2032.

[0046] In a specific embodiment, such as Figure 2 As shown, a hinge joint 12 is connected to the piston rod of the drive cylinder. One end of the hinge joint 12 is connected to one end of the piston rod, and the other end has a hinge hole. The hinge hole is rotatably connected to the connecting shaft 2032.

[0047] The first arm 1 has a through hole, and a pin is connected to the cylinder of the drive cylinder. The pin passes through the through hole and is rotatably connected to it.

[0048] In one embodiment, such as Figure 1 As shown, the covering assembly 5 includes an adjusting arm 501 and a tab cover 502. An adjusting groove is provided on the second connecting end 302 along the length of the second arm 3. The tab cover 502 is installed at one end of the adjusting arm 501, and the other end of the adjusting arm 501 passes through the adjusting groove and is slidably connected thereto. The adjusting arm 501 is slidably connected within the adjusting groove. Adjusting the distance between the tab cover 502 and the second connecting end 302 allows for adjustment of the alignment between the tab cover 502 and the tab. Since the positions of the tabs differ for electrode assemblies of different sizes, adjusting the distance between the tab cover 502 and the second connecting end 302 can accommodate electrode assemblies of different sizes.

[0049] In one embodiment, such as Figure 1As shown, the sidewalls opposite the adjustment groove are provided with adjustment holes 7, and the adjustment arm 501 is provided with a through hole corresponding to the adjustment hole 7. The locking member passes through the adjustment hole 7 and the through hole to lock the adjustment arm 501 in the adjustment groove. After adjusting the corresponding position of the electrode cover 502 and the electrode tab, the locking member locks the adjustment arm 501 in the adjustment groove, which can accommodate electrode assemblies of different sizes.

[0050] It should be further explained that the locking component includes a locking bolt 8 and a locking nut 9. The locking bolt 8 passes through the adjustment hole 7 and the through hole and is connected to the locking nut 9, locking the adjustment arm 501 in the adjustment groove.

[0051] It should be further noted that the adjustment groove is located on the second cross arm.

[0052] In one specific embodiment, two through holes are provided, and two locking bolts 8 pass through the adjustment hole 7 and the two through holes respectively and are screwed to two locking nuts 9 for a more secure connection.

[0053] In one embodiment, the electrode cover 502 includes: a first cover 5021, an adjusting cylinder 5022, and a second cover 5023;

[0054] Specifically, the first cover 5021 is installed on the adjusting arm 501, the adjusting cylinder 5022 is installed at the end of the adjusting arm 501 away from the second arm body 3, and the second cover 5023 is installed on the piston rod of the adjusting cylinder 5022 to adjust the distance from the first cover 5021.

[0055] It should be explained that the electrode assembly is provided with two tabs, and the two tabs are located on the same side of the electrode assembly and are arranged at intervals. The first cover 5021 and the second cover 5023 are used to cover the two tabs respectively. The adjusting cylinder 5022 can adjust the distance between the first cover 5021 and the second cover 5023, which is applicable to cases where the two tabs have different spacings.

[0056] It should be noted that, as Figure 1 As shown, it also includes a first mounting member 5024, which is mounted on the adjusting arm 501, and a first cover member 5021 is mounted on the first mounting member 5024; the adjusting cylinder 5022 is mounted on the first mounting member 5024.

[0057] In one specific embodiment, the adjusting cylinder 5022 can be replaced by a telescopic rod.

[0058] It should be further explained that it also includes a second mounting part 5025, which is mounted on the piston rod of the regulating cylinder 5022, and a second cover part 5023 is mounted on the second mounting part 5025.

[0059] In one embodiment, a mounting shaft 11 is also included, one end of which is connected to the rotating connector 4, and the other end is used to connect to the spraying equipment.

[0060] In a specific embodiment, such as Figure 3 As shown, the rotating connector 4 includes: a first U-shaped plate 401, a second U-shaped plate 402, and a third U-shaped plate 403. The top plate of the first U-shaped plate 401 is fixed to the first rotating end 101; the top plate of the second U-shaped plate 402 is fixed to the second rotating end 301. The openings of the second U-shaped plate 402 and the first U-shaped plate 401 are arranged opposite to each other, and the second U-shaped plate 402 is disposed inside the first U-shaped plate 401. The inner sidewalls of the two side plates of the third U-shaped plate 403 are arranged correspondingly to the outer sidewalls of the first U-shaped plate 401. One end of the mounting shaft 11 is fixedly connected to the top plate of the third U-shaped plate 403. The sidewalls of the first U-shaped plate 401, the second U-shaped plate 402, and the third U-shaped plate 403 are all provided with corresponding through holes. The fixing bolts 10 pass through multiple through holes in sequence and are screwed to the fixing nuts.

[0061] The fixing bolts 10 pass through multiple holes and are screwed into the fixing nuts, connecting the first U-shaped plate 401, the second U-shaped plate 402, and the third U-shaped plate 403. When the fixing bolts 10 and the fixing nuts are not clamped to the third U-shaped plate 403, the first U-shaped plate 401, the second U-shaped plate 402, and the third U-shaped plate 403 can rotate relative to each other, allowing the second arm 3 to rotate and switch between the first and second positions, thus covering the two pole ears. The rotational connection via the U-shaped plate structure is simple and convenient.

[0062] According to an embodiment of this application, another aspect provides a spraying device, including: a frame, a spraying mechanism, and an electrode assembly clamping device, wherein the electrode assembly clamping device and the spraying mechanism are both mounted on the frame.

[0063] The electrode assembly clamping device is installed on the frame, and the electrode assembly is fixed on the clamping assembly 2. The second arm 3 is rotated to cover the electrode tab with the covering assembly 5. The spraying end of the spraying mechanism sprays insulating material towards the end face of the electrode assembly. The covering assembly 5 can prevent the insulating material from being sprayed onto the electrode tab and improve the spraying efficiency.

[0064] To further explain, the spraying mechanism is equipped with spray guns. During operation, the nozzles of the spray guns are arranged corresponding to the end faces of the electrode components. Specifically, spray guns can be installed on the end faces that need to be sprayed.

[0065] The following is an example, combined with Figures 1 to 3 A comprehensive explanation of all the above-mentioned plans is provided.

[0066] Before applying insulating material to the electrode assembly during production, the mounting shaft 11 is fixed to the frame. The piston rod of the drive cylinder drives the second clamping plate 203 to rotate, increasing the clamping gap between the second clamping plate 203 and the first clamping plate 202. The electrode assembly is placed within the clamping gap, and the drive cylinder pushes the second clamping plate 203 closer to the first clamping plate 202, clamping and fixing the electrode assembly. The operator adjusts the distance of the adjusting arm 501 in the adjusting groove and locks it with the locking bolt 8 and locking nut 9. The adjusting cylinder 5022 adjusts the distance between the first cover 5021 and the second cover 5023 so that the distance between the first cover 5021 and the second cover 5023 is equal to the distance between the two tabs on the electrode assembly. The second arm 3 is rotated to cover the two tabs with the first cover 5021 and the second cover 5023. The fixing bolt 10 and the fixing nut are locked, and the spray gun is started to spray the insulating material onto the end face of the electrode assembly.

[0067] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by the appended application.

Claims

1. An electrode assembly clamping device, characterized in that, include: The first arm (1) is provided with a first rotating end and a first connecting end, and a clamping component (2) for clamping the electrode assembly is provided on the first connecting end; The second arm (3) is provided with a second rotating end and a second connecting end. The second rotating end is rotatably connected to the first rotating end through a rotating connector (4). The second connecting end is equipped with a covering component (5) for covering the tab. The second arm (3) is adapted to rotate and switch between a first position and a second position around the rotating connector (4) so ​​that the covering component (5) covers or avoids the tab.

2. The electrode assembly clamping device according to claim 1, characterized in that, The clamping assembly (2) includes: Mounting plate (201) is installed on the first connecting end; The first clamping plate (202) is fixedly connected to the mounting plate (201); The second clamping plate (203) is rotatably connected to the mounting plate (201), and a clamping gap for clamping the electrode assembly is formed between the second clamping plate (203) and the first clamping plate (202). A drive member (204) is installed at the first connection end. The drive end of the drive member (204) is hinged to the second clamping plate (203). The drive member (204) drives the second clamping plate (203) to rotate to clamp the electrode assembly.

3. The electrode assembly clamping device according to claim 2, characterized in that, The second clamping plate (203) is provided with two protrusions (2031), and a connecting shaft (2032) is connected between the two protrusions (2031). The driving end of the driving member (204) is rotatably connected to the connecting shaft (2032).

4. The electrode assembly clamping device according to claim 3, characterized in that, The mounting plate (201) is provided with a connection hole, and the first arm body (1) is provided with a mounting hole corresponding to the connection hole. The connector (6) passes through the connection hole and the mounting hole to connect the mounting plate (201) to the first arm body (1).

5. The electrode assembly clamping device according to claim 4, characterized in that, The driving component (204) is configured as a driving cylinder, the cylinder barrel of the driving cylinder is hinged to the first arm body (1), and the piston rod of the driving cylinder is rotatably connected to the connecting shaft (2032).

6. The electrode assembly clamping device according to any one of claims 1 to 5, characterized in that, The covering assembly (5) includes an adjusting arm (501) and a tab cover (502). The second connecting end is provided with an adjusting groove along the length direction of the second arm body (3). The tab cover (502) is installed at one end of the adjusting arm (501), and the other end of the adjusting arm (501) passes through the adjusting groove and is slidably connected to it.

7. The electrode assembly clamping device according to claim 6, characterized in that, The sidewall opposite to the adjustment groove is provided with an adjustment hole (7), and the adjustment arm (501) is provided with a through hole corresponding to the adjustment hole (7). The locking member passes through the adjustment hole (7) and the through hole to lock the adjustment arm (501) in the adjustment groove.

8. The electrode assembly clamping device according to claim 7, characterized in that, The electrode cover (502) includes: The first cover (5021) is installed on the adjusting arm (501); An adjusting cylinder (5022) is installed at the end of the adjusting arm (501) away from the second arm body (3); The second cover (5023) is mounted on the piston rod of the adjusting cylinder (5022) to adjust the distance from the first cover (5021).

9. The electrode assembly clamping device according to any one of claims 1 to 5, characterized in that, It also includes a mounting shaft (11), one end of which is connected to the rotating connector (4), and the other end is used to connect to the spraying equipment.

10. A spraying device, characterized in that, It includes a frame, a spraying mechanism, and an electrode assembly clamping device as described in any one of claims 1 to 9, wherein both the electrode assembly clamping device and the spraying mechanism are mounted on the frame.

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