Battery holding device

Abstract

The utility model belongs to the technical field of battery manufacturing, and discloses a battery holding device which comprises a temporary storage table and a clamping mechanism, the temporary storage table comprises at least one first supporting piece and at least one second supporting piece, and the second supporting pieces are arranged on the two sides of the first supporting piece in the first direction. Each clamping mechanism comprises at least one first clamping jaw and at least one second clamping jaw, and the second clamping jaws are arranged on the two sides of the first clamping jaw in the first direction. The battery holding device can support the battery cell body and the tabs at the same time, and can stably support the tabs no matter in the caching process or the carrying process, so that the defects of folding, tilting, collapsing and the like of the tabs are avoided, and the stable proceeding of the subsequent process is ensured.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, and in particular to a battery holding device. Background Technology

[0002] In the battery production and manufacturing process, due to the numerous steps involved, after the completion of one process, the battery is typically placed on a buffer platform and then transported to the next process station by a robotic arm. In existing technologies, both the buffer platform and the robotic arm only support the battery body; the tabs remain suspended in the air during the buffer platform and battery transport. This easily leads to tab bending. Folding and tilting of the tabs can cause uneven stress on the pre-welded joints in subsequent welding processes, reducing both the lifespan of the weld joints and the welding yield. Furthermore, tab collapse can also disrupt the normal operation of processes such as thickness measurement, weighing, and pairing. Utility Model Content

[0003] The purpose of this utility model is to provide a battery holding device that can simultaneously support the battery cell body and the tabs. It can provide stable support for the tabs during both the buffering process and the transportation process, avoiding defects such as folding, tilting and collapsing of the tabs, and ensuring the stable progress of subsequent processes.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] This utility model discloses a battery holding device, comprising: a buffer platform, the buffer platform including at least one first support member and a second support member; the second support member being disposed on both sides of the first support member along a first direction; and a clamping mechanism, the clamping mechanism including at least one first clamping jaw and a second clamping jaw, the second clamping jaw being disposed on both sides of the first clamping jaw along the first direction.

[0006] The battery holding device of this utility model has the following advantages: Since the buffer platform includes a first support and a second support, when the battery cell is placed on the buffer platform, the first and second support simultaneously support the battery cell body and the tabs, ensuring the stability of the battery cell while preventing defects such as folding, tilting, and collapse of the tabs. Since the clamping mechanism includes a first gripper and a second gripper, during the transfer process under the clamping mechanism, the first and second grippers simultaneously clamp the battery cell body and the tabs, ensuring good stability of the battery cell during transfer and providing good support for the tabs, preventing defects such as folding, tilting, and collapse caused by the tabs being suspended. Therefore, the battery holding device can simultaneously support the battery cell body and the tabs, providing stable support for the tabs during both the buffering and handling processes, preventing defects such as folding, tilting, and collapse of the tabs, and ensuring the stable execution of subsequent processes.

[0007] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the battery holding device according to an embodiment of the present invention;

[0009] Figure 2 This is a schematic diagram of the battery holding device supporting the battery according to an embodiment of the present invention.

[0010] Figure 3 This is a schematic diagram of the structure of the buffer platform of the battery holding device according to an embodiment of the present invention;

[0011] Figure 4 This is a schematic diagram of the clamping mechanism of the battery holding device according to an embodiment of the present invention.

[0012] Figure label:

[0013] 100. Buffer platform; 110. First support member; 111. Main body; 112. Limiting part; 1121. Limiting protrusion; 120. Second support member; 121. Third connecting part; 122. Third support part; 101. Clearance space;

[0014] 200. Clamping mechanism; 210. First gripper; 211. First connecting part; 212. First support part; 220. Second gripper; 221. Second connecting part; 222. Second support part; 230. Mounting assembly; 231. Drive block; 232. Connecting block; 233. Mounting block;

[0015] 300. Drive components;

[0016] 410. Battery cell body; 420. Electrode tab;

[0017] 500. External support. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0019] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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 refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] In the description of this embodiment, the terms "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply 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 this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0021] This utility model discloses a battery holding device, referenced Figure 1 and Figure 2 As shown, the battery holding device of this embodiment includes a buffer platform 100 and a clamping mechanism 200. The buffer platform 100 includes at least a first support member 110 and a second support member 120. The second support member 120 is disposed on both sides of the first support member 110 along a first direction. The clamping mechanism 200 includes at least a first gripper 210 and a second gripper 220. The second gripper 220 is disposed on both sides of the first gripper 210 along a first direction.

[0022] First, it should be noted that the battery holding device disclosed in this embodiment can be used to transport and buffer battery cells. The battery cell includes a cell body 410 and tabs 420 connected to the cell body 410. The cell body 410 includes a separator and two types of electrodes with opposite polarities: a positive electrode and a negative electrode. The tabs 420 include a positive tab and a negative tab. The positive tab is electrically connected to the positive electrode, and the negative tab is electrically connected to the negative electrode. The battery cell is charged and discharged through the positive and negative tabs. Both the positive and negative electrodes include a current collector and an active material layer, with the active material layer coated on the surface of the current collector. If the electrode is a positive electrode, the current collector material can be aluminum, and the active material layer material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium, or lithium manganese oxide, etc. If the electrode is a negative electrode, the current collector material can be copper, and the active material layer material can be carbon or silicon, etc. The separator acts as an insulating layer to prevent short circuits inside the battery caused by contact between the positive and negative electrodes. It also acts as a semi-permeable layer to prevent larger molecules from passing through while allowing smaller charged ions to pass through.

[0023] In this embodiment, the first support member 110 of the battery holding device is used to support the battery cell body 410, the second support member 120 is used to support the electrode tab 420, the first gripper 210 is used to clamp the battery cell body 410, and the second gripper 220 is used to clamp the electrode tab 420.

[0024] Understandably, since the buffer platform 100 includes a first support member 110 for supporting the battery cell body 410 and a second support member 120 for supporting the tab 420, when the battery cell body 410 is placed on the buffer platform 100, the first support member 110 and the second support member 120 simultaneously support the battery cell body 410, ensuring the stability of the battery cell body 410 while preventing defects such as folding, lifting, and collapse of the tab 420. Since the clamping mechanism 200 includes a first clamp 210 for clamping the battery cell body 410 and a second clamp 220 for clamping the tab 420, when the battery cell body 410 is transferred under the clamping of the clamping mechanism 200, the first clamp 210 and the second clamp 220 simultaneously clamp the battery cell body 410, ensuring good stability of the battery cell body 410 during transfer, and providing good support for the tab 420, preventing defects such as folding, lifting, and collapse caused by the tab 420 being suspended. Therefore, the battery holding device can simultaneously support the cell body 410 and the tab 420, and can stably support the tab 420 during both the buffering process and the transportation process, so as to avoid defects such as folding, lifting and collapse of the tab 420, and ensure the stable progress of subsequent processes.

[0025] Optionally, when supporting and clamping the battery cell body 410 and the electrode tab 420, the orthographic projection of the second support member 120 along the second direction and the orthographic projection of the second gripper 220 along the second direction are at least partially overlapped in the first direction, and the second direction is perpendicular to the first direction. This ensures that when the second gripper 220 just clamps the electrode tab 420, the second support member 120 is also simultaneously supporting the electrode tab 420.

[0026] Optionally, when supporting and clamping the battery cell body 410 and the electrode tab 420, the projection of the first support member 110 in a third direction (vertical direction) overlaps with the projection of the first gripper 210 in a third direction. The projection of the second support member 120 in a third direction overlaps with the projection of the second gripper 220 in a third direction. Thus, the first support member 110 and the first gripper 210 simultaneously support the battery cell body 410, and the second support member 120 and the second gripper 220 simultaneously support the electrode tab 420.

[0027] refer to Figure 1As shown, there are two clamping mechanisms 200, which are spaced apart along the second direction. The first grippers 210 of the two clamping mechanisms 200 face each other, and the second grippers 220 of the two clamping mechanisms 200 face each other. The second direction is perpendicular to the first direction. It can be understood that, compared with the single-sided clamping method, this embodiment sets two clamping mechanisms 200. In the actual clamping process, the two clamping mechanisms 200 are respectively supported on both sides of the battery cell body 410 along the second direction. On the one hand, this shortens the length of a single first gripper 210 (if it is a single-sided clamping method, the size of the first gripper 210 along the second direction needs to be basically the same as the size of the battery cell body 410 along the second direction). On the other hand, it can ensure that the clamping mechanism 200 can stably clamp the battery cell body 410, thereby ensuring the stability of the battery cell body 410 during the transfer process.

[0028] It should be noted that in this embodiment, the two clamping mechanisms 200 share a single drive element 300, which is a cylinder. This ensures that the two clamping mechanisms 200 operate simultaneously. Of course, in an alternative embodiment of this invention, the two clamping mechanisms 200 can also employ two independent drive elements 300, which can be electric push rods or other linear drive structures such as motor-driven ball screws.

[0029] refer to Figure 4 As shown, each clamping mechanism 200 also includes a mounting assembly 230, which is connected to the drive member 300. The first gripper 210 and the second gripper 220 are spaced apart on the mounting assembly 230 along a first direction, which is perpendicular to the second direction. It can be understood that, compared to the first gripper 210 and the second gripper 220 being connected to the drive member 300 separately, this embodiment adds the mounting assembly 230 as a transition component. That is, the first gripper 210 and the second gripper 220 are mounted on the mounting assembly 230, which is then connected to the drive member 300. In actual operation, when the drive member 300 drives the mounting assembly 230 to move, the first gripper 210 and the second gripper 220 can move along the second direction towards or away from the battery cell body 410, ensuring the stability of the first gripper 210 and the second gripper 220, thereby ensuring the stability of the battery cell body 410 during transport.

[0030] Optionally, the mounting assembly 230 includes a drive block 231, a connecting block 232, and two mounting blocks 233. The drive block 231 is connected to the drive member 300, the connecting block 232 is connected to the drive block 231, and the two mounting blocks 233 are respectively connected to both ends of the connecting block 232 along a first direction. Each mounting block 233 is provided with at least one first gripper 210 and at least one second gripper 220. It can be understood that the drive block 231 serves as a structure connected to the drive member 300, the connecting block 232 serves as a transfer structure, and the two mounting blocks 233 serve as structures for actually mounting the first gripper 210 and the second gripper 220. This ensures the installation stability of the first gripper 210 and the second gripper 220, thereby ensuring that when the drive member 300 drives the mounting assembly 230 to move, the first gripper 210 and the second gripper 220 can move along the second direction toward or away from the battery cell body 410, thereby achieving the clamping of the battery cell body 410 and the tab 420.

[0031] In this embodiment, each mounting block 233 is provided with two first grippers 210. The two first grippers 210 can improve the clamping stability of the battery cell body 410 and ensure the stability of the battery cell body 410 during transportation. Of course, in an alternative embodiment of this utility model, the number of first grippers 210 can also be adjusted according to the size of the battery cell body 410 along the first direction.

[0032] In this embodiment, each mounting block 233 is provided with a second gripper 220. In an alternative embodiment of this invention, the number of second grippers 220 can be adjusted according to the dimension of the tab 420 along the first direction.

[0033] Optional, see reference Figure 4 As shown, the first gripper 210 includes a first connecting portion 211 and a first supporting portion 212. The first connecting portion 211 is connected to the mounting block 233, and the first supporting portion 212 is used to support the battery cell body 410. It is understood that the first connecting portion 211 can be connected to the mounting block 233 in any direction, such as by screw connection, pin connection, riveting, or adhesive welding. The first supporting portion 212 supports the battery cell body 410, ensuring its stability. The first gripper 210, being an integrated structure composed of the first connecting portion 211 and the first supporting portion 212, simplifies the structure of the first gripper 210, reduces its manufacturing cost, and ensures the stability of the battery cell body 410. The first gripper 210 can be an L-shaped structure or a T-shaped structure. Of course, in other embodiments of this utility model, the first gripper 210 can also be selected in other shapes according to actual needs.

[0034] Optional, see reference Figure 4As shown, the second gripper 220 includes a second connecting portion 221 and a second supporting portion 222. The second connecting portion 221 is connected to the mounting assembly 230, and the second supporting portion 222 supports the electrode tab 420. It is understood that the second connecting portion 221 can be connected to the mounting block 233 in any direction, such as by screw connection, pin connection, riveting, or adhesive welding. The second supporting portion 222 supports the electrode tab 420, ensuring its stability. The integrated structure of the second gripper 220, the second connecting portion 221, and the second supporting portion 222 simplifies the structure of the second gripper 220, reduces its manufacturing cost, and ensures the stability of the electrode tab 420. The second gripper 220 can be an L-shaped or T-shaped structure; of course, in other embodiments of this invention, the second gripper 220 can also be selected in other shapes according to actual needs.

[0035] Optionally, the size of the middle part of the first support member 110 is smaller than the size of both ends of the first support member 110 along the first direction. This allows for a clearance space 101 on at least one side of the first support member 110. It is understood that during actual transport, as the first gripper 210 moves along the second direction towards the battery cell body 410 under the drive of the drive member 300, the first gripper 210 can enter the clearance space 101 and move to support itself on the bottom surface of the battery cell body 410. The clearance space 101 prevents the first gripper 210 from impacting the buffer platform 100 when gripping the battery cell body 410, ensuring that the battery cell body 410 can be stably gripped while protecting the first gripper 210 and the buffer platform 100. The size of the clearance space 101 can be selected according to actual needs. It should be noted that in this embodiment, the dimensions mentioned above can be dimensions along the first direction. Of course, in other embodiments of this utility model, the dimension can also be the dimension along the second direction, as long as Baocheng forms an avoidance space 101 at one end of the first support member 110 along the first direction.

[0036] Alternatively, an anti-collision sensor is provided in the clearance space 101. When the anti-collision sensor is triggered, the drive unit 300 immediately stops moving, thereby preventing the first gripper 210 from hitting the buffer platform 100 when it is gripping the battery cell body 410.

[0037] refer to Figure 3As shown, the first support member 110 includes a main body 111 and a limiting part 112. The limiting part 112 is located on one side of the main body 111 along the second direction. Along the first direction, the size of the limiting part 112 is smaller than the size of the main body 111. The limiting part 112 is provided with a limiting protrusion 1121, which abuts against the side wall of the cell body 410 along the second direction. It can be understood that, along the first direction, the size of the limiting part 112 is smaller than the size of the main body 111. The portion of the main body 111 that extends beyond the limiting part 112 constitutes a clearance space 101. During the movement of the first gripper 210 along the second direction towards the cell body 410 under the drive of the drive member 300, the longer length of the main body 111 can stably support the cell body 410, while the shorter length of the limiting part 112 prevents the first gripper 210 from impacting the cell body 410. The presence of the limiting protrusion 1121 can limit the position of the battery cell body 410, preventing the battery cell body 410 from swaying along the second direction on the buffer platform 100 under the action of external force, and ensuring that the buffer platform 100 can stably support the battery cell body 410. In this embodiment, there are two limiting parts 112, and the two limiting parts 112 are respectively located on both sides of the main body 111 along the second direction. Of course, in other embodiments of this utility model, there may be only one limiting part 112, which can be adjusted according to actual needs.

[0038] refer to Figure 3 As shown, the second support member 120 includes a third connecting portion 121 and a third supporting portion 122. The surface of the third supporting portion 122 facing away from the third connecting portion 121 is higher than the surface of the first support member 110. The third connecting portion 121 is used to connect to the external bracket 500. It is understood that the third connecting portion 121 can be connected to the external bracket 500 in any direction, such as screw connection, pin connection, riveting, or adhesive welding. The fact that the surface of the third supporting portion 122 facing away from the third connecting portion 121 is higher than the surface of the first support member 110 ensures the stability of the support for the tab 420. The second support member 120, being an integrated structure composed of the third connecting portion 121 and the third supporting portion 122, simplifies the structure of the second support member 120, reduces its manufacturing cost, and ensures the stability of the tab 420. The second support member 120 can be an L-shaped structure or a T-shaped structure. Of course, in other embodiments of this utility model, the second support member 120 can also be selected in other shapes according to actual needs.

[0039] refer to Figure 3As shown, the first support member 110 has a plurality of second support members 120 on one side along the first direction, and the plurality of second support members 120 are spaced apart along the second direction. It can be understood that, depending on the model of the battery cell body 410, the tabs 420 at the end of the battery cell body 410 can be either all tabs or multiple tabs. In this embodiment, two second support members 120 are provided on one end along the first direction. It should be further noted that in other embodiments of this utility model, the distribution of the second support members 120 can be adjusted according to actual needs and is not limited to the method of this embodiment.

[0040] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A battery holding device, characterized in that, include: A buffer platform (100) includes at least one first support member (110) and a second support member (120); the second support member (120) is disposed on both sides of the first support member (110) along a first direction; The clamping mechanism (200) includes at least one first jaw (210) and a second jaw (220), wherein the second jaw (220) is disposed on both sides of the first jaw (210) along a first direction.

2. The battery holding device according to claim 1, characterized in that, The orthographic projection of the second support member (120) along the second direction and the orthographic projection of the second gripper (220) along the second direction are at least partially overlapped in the first direction, and the second direction is perpendicular to the first direction.

3. The battery holding device according to claim 1, characterized in that, There are two clamping mechanisms (200), and the two clamping mechanisms (200) are spaced apart along the second direction. The first jaws (210) of the two clamping mechanisms (200) are arranged facing each other. The second jaws (220) of the two clamping mechanisms (200) are arranged facing each other. The first direction is perpendicular to the second direction.

4. The battery holding device according to claim 3, characterized in that, Each of the clamping mechanisms (200) further includes a mounting assembly (230) connected to a drive member (300), wherein the first gripper (210) and the second gripper (220) are spaced apart on the mounting assembly (230) along a first direction.

5. The battery holding device according to claim 4, characterized in that, The mounting component (230) includes: A drive block (231) is connected to the drive element (300); A connecting block (232) is connected to the driving block (231); Two mounting blocks (233) are respectively connected to the two ends of the connecting block (232) along the first direction. Each mounting block (233) is provided with at least one first gripper (210) and at least one second gripper (220).

6. The battery holding device according to claim 4, characterized in that, The first gripper (210) includes a first connecting portion (211) and a first supporting portion (212), the first connecting portion (211) being connected to the mounting assembly (230), and / or: The second gripper (220) includes a second connecting portion (221) and a second supporting portion (222), the second connecting portion (221) being connected to the mounting assembly (230).

7. The battery holding device according to any one of claims 1-4, characterized in that, The size of the middle part of the first support member (110) is smaller than the size of the two ends of the first support member (110) along the first direction.

8. The battery holding device according to claim 7, characterized in that, The first support member (110) includes a main body (111) and at least one limiting part (112). The limiting part (112) is provided on one side of the main body (111) along the second direction. Along the first direction, the size of the limiting part (112) is smaller than the size of the main body (111). The limiting part (112) is provided with a limiting protrusion (1121).

9. The battery holding device according to any one of claims 1-4, characterized in that, The second support member (120) includes a third connecting part (121) and a third supporting part (122). The surface of the third supporting part (122) facing away from the third connecting part (121) is higher than the surface of the first support member (110). The third connecting part (121) is used to connect to the external bracket (500).

10. The battery holding device according to any one of claims 1-4, characterized in that, The first support member (110) has a plurality of second support members (120) on one side along the first direction, and the plurality of second support members (120) are spaced apart along the second direction.

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