Fixture for battery cell transfer tray and battery cell transfer tray thereof

Abstract

The utility model relates to the technical field of battery production equipment, and particularly discloses a jig for a battery cell transfer tray and the battery cell transfer tray. A containing space is defined by the jigs on the transfer tray, each jig comprises a guiding part, a limiting part and a mounting part, the guiding parts are arranged at the tops of the limiting parts, the mounting parts are used for mounting the jigs on the tray integrally, the guiding parts comprise guiding slopes, the guiding slopes are connected with limiting faces in the limiting parts, and the guiding slopes are connected with the limiting faces in the limiting parts. The top of the guide slope is farther from the accommodating space than the bottom. The utility model has the beneficial effects that the jig can rectify the deviation of the battery cell which deviates in a small range when the battery cell is put down, so that the battery cell is driven to fall into the accommodating area of the tray. Meanwhile, it is guaranteed that when the battery cell falls, the battery cell firstly makes contact with the guide inclined face instead of the bevel structure, the possibility that the battery cell is scratched and damaged after falling can be reduced, and the effect of protecting the battery cell is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production equipment, and in particular to a jig for a battery cell transfer tray and a battery cell transfer tray. Background Art

[0002] In recent years, the demand for new energy-related products has gradually increased, and batteries are one of the most important products. In order to ensure that battery production can meet market demand, it is necessary to improve the product yield and production line yield. In the battery production process, mechanical damage to the battery cell is a common problem.

[0003] During the assembly process of the battery cells, the battery cells are usually transferred to the transfer tray by using a structure such as a clamp, and then the battery cells are smoothly transferred to the corresponding processing area by the transfer tray. A plurality of jigs are usually arranged on the transfer tray, and several jigs are combined to form a receiving area. Under normal circumstances, the clamps place the battery cells in the receiving area, so that the jigs can limit the battery cells to prevent the battery cells from falling or shifting during the transfer process.

[0004] However, after investigation, it was found that in the process of the gripper lowering the battery cell to the transfer tray, the position of the battery cell may deviate from the setting position of the fixture on the tray. In this case, when the gripper releases the battery cell, the fixture on the transfer tray may scratch the battery cell, or the battery cell may not be placed in place, affecting subsequent processing. In this process, the core damage rate can reach 0.2%. Therefore, there is an urgent need for a fixture that can reduce the probability of damage caused by scratching the fixture when the battery cell is unloaded, and at the same time guide the battery cell to the correct position. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a jig with a simple and reasonable structure, which can prevent the battery cells from falling normally on the transfer tray under the guidance of the jig within a relative error range, thereby avoiding direct and strong collision between the battery cells and the jig, thereby causing damage to the battery cells.

[0006] The utility model is realized through the following technical solutions.

[0007] A jig for a cell transfer tray, wherein a plurality of jigs are arranged around a transfer tray to form a storage space, characterized in that the jig comprises a guide portion, a limiting portion and a mounting portion, wherein the guide portion is placed on the top of the limiting portion, and the mounting portion is used to mount the jig as a whole on the tray, wherein the guide portion comprises a guide slope, the guide slope is connected to the limiting surface in the limiting portion, and the top of the guide slope is farther away from the storage space than the bottom. When the cell is lowered by the clamp, the edge of the cell and the structure of its accessories will first contact the guide slope structure, and then slide downward along the guide slope under the influence of its own gravity, and finally make the edge of the cell collide with the limiting surface. The tray usually comprises a plurality of jigs to enclose the storage area of ​​the cell, and when the edge of the cell conflicts with the limiting surface, the cell has been placed in the storage space formed by the encirclement, that is, the cell has been displaced to the normal storage position under the guidance of the slope structure, and the jig achieves a correction effect within a small range.

[0008] At the same time, compared with the rectangular jig used in the prior art, in the utility model, the main contact positions between the jig and the battery cell are located on the guiding slope or the limiting surface, rather than the angle structure, etc., to prevent the battery cell from colliding with the angle structure and being damaged when falling.

[0009] As a further improvement of the present invention, the top of the guiding slope is connected to the remaining surfaces through a transition structure. The bottom of the guiding slope is connected to the guiding slope, and the top of the guiding slope may be connected to other planes, so a relatively gentle angle structure may be formed at the junction of the surfaces. However, if the battery cell collides with such an angle structure when falling, it may still cause damage to the battery cell. Therefore, when the top of the guiding slope is connected to the remaining slopes, it is connected through a transition structure such as a rounded structure, which can further reduce the possibility of damage to the battery cell.

[0010] As a further improvement of the utility model, after the fixture is installed, the slope of the guide slope is. The slope refers to the tangent value of the angle between the guide slope and the horizontal plane. With this slope, it can ensure that the battery cell can fall smoothly, and will not cause the battery cell to fall too fast and bump.

[0011] As a further improvement of the present invention, the overall height of the fixture includes the height of the guide portion and the height of the limiting portion, and the overall height is 23-25 ​​mm.

[0012] As a further improvement of the present invention, in the overall height, the ratio between the height of the guide portion and the height of the limit portion is 1:(3-4). This structure can ensure that the fixture can play a corresponding corrective role.

[0013] As a further improvement of the present invention, the guide portion includes two sets of symmetrically arranged guide slopes. When one guide slope is worn out after long-term use, the orientation of the fixture can be reversed, thereby increasing the service life of a single fixture.

[0014] As a further improvement of the present invention, the mounting portion includes a mounting notch disposed on the top of the fixture, a mounting channel vertically penetrating the fixture, the mounting channel being in communication with the mounting notch, and a fixing member capable of contacting the pallet through the mounting channel. On the one hand, some materials are saved, reducing the manufacturing cost of a single fixture, and on the other hand, the spacing between the fixing member and the corresponding structure on the pallet is reduced, that is, the fixture can be fixed by using a shorter fixing member, without the need to specially purchase the required long fixing member. The fixing member can be a screw or other component.

[0015] A battery cell transfer tray comprises a tray base, a plurality of jigs for the battery cell transfer tray as described above, and a mounting base adapted to the mounting portion, wherein the jig is mounted on the tray base via the mounting base, and a plurality of the jigs are combined to form a accommodating area for accommodating battery cells.

[0016] As a further improvement of the present invention, the spacing between the limiting surface and the battery cell is 0-2 mm. This spacing ensures that when the battery cell deviates within a small range, the jig can be used to correct the deviation and prevent the battery cell from being damaged; and when the battery cell deviates within a large range, after the battery cell falls, the guiding slope can still support the battery cell to prevent it from sliding down quickly and causing damage, providing buffer time for manual correction intervention.

[0017] As a further improvement of the present invention, the mounting base includes a plurality of mounting blocks, and the mounting blocks include a plurality of mounting positions, and the mounting positions are all compatible with the mounting portion, and the position of the fixture can be adjusted according to the size and shape of different battery cells.

[0018] The beneficial effect of the utility model is that, on the one hand, after the jig is installed on the tray, the battery cells that have a small range of deviation when being lowered can be corrected and driven to fall into the correct accommodation area of ​​the tray. On the other hand, during the falling process of the battery cells, they first contact the guiding slope rather than the angle structure, etc., which can reduce the possibility of scratches and other damage to the battery cells after falling, and play a role in protecting the battery cells. At the same time, within a certain range, when the correction capacity of the jig is exceeded, the guiding slope can still play a role in partially supporting the battery cells without damaging the battery cells, providing a buffer time for manual correction intervention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following drawings are provided for combining with the preferred implementation cases of the present invention to help understand the purpose and advantages of the present invention, wherein:

[0020] Figure 1 This is a schematic diagram of the transfer pallet structure;

[0021] Figure 2 This is a schematic diagram of the fixture structure;

[0022] Figure 3 Schematic diagram of the battery cell structure. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below based on the accompanying drawings and implementation cases.

[0024] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. The words "inside" and "outside" refer to the direction toward or away from the geometric center of a specific component, respectively. They are relative concepts, and therefore may change accordingly according to different locations and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0025] In this embodiment, Figure 3 As shown, the battery cells α used are all rectangular structures, and two pole pieces β are installed on one side of the battery cells α. Therefore, the position of the installation position C02 for installing the fixture A is set according to the battery cell α, which is only used to facilitate the technical personnel in the field to understand the technical solution and does not affect the protection scope of the claims.

[0026] Embodiment 1:

[0027] A jig for a battery cell transport tray, such as Figure 2 As shown, it includes a guide portion 1, a limit portion 2 and a mounting portion 3. The fixture A is mainly installed on the transfer pallet to play its role. Among them, the fixture A is installed and fixed as a whole through the mounting portion 3, and the mounting portion 3 can be fixed with screws or any other parts or kits that can be installed, fixed and disassembled.

[0028] like Figure 1 As shown, when a corresponding number of jigs A are installed on the transfer tray, the jigs A enclose a storage space, which is used to store the battery cell α. When the battery cell α is placed in the storage space, the transfer tray will move and drive the battery cell α to move to the corresponding position. Therefore, the jig A also needs to include a limiting portion 2, and the limiting surface 201 can conflict with the battery cell α to limit the movement range of the battery cell α.

[0029] The fixture A usually places the battery cell α under the clamp, and plays its correcting role in the process of the battery cell α falling to the transfer tray. Therefore, the guide part 1 is placed on the top of the limiting part 2, and the guide part 1 mainly guides the battery cell α to move to the position of the accommodating space through the guiding slope 101. Therefore, the top of the guiding slope 101 is farther away from the accommodating space than the bottom. At the same time, the guiding slope 101 is on the side close to the accommodating space and must be connected with the limiting surface 201 to ensure that the limiting part 2 of the fixture A can immediately play its limiting role after the guiding work is completed.

[0030] Preferably, if Figure 2 As shown, due to the large thickness of the fixture A, a horizontal plane is connected to the top of the guiding slope 101, and the connection is transitioned through a rounded structure as a transition structure 102 to prevent the battery cell α from colliding with the original angle structure at the connection when it is lowered, thereby causing damage to the battery cell α.

[0031] Preferably, if Figure 2 As shown, after the fixture A is installed, the slope of the guide slope 101 is. In this embodiment, the tray is placed horizontally as a whole, so the fixture A thereon is also in a vertical state, that is, the limiting surface 201 is vertically arranged on the tray base B. At this time, the tangent value of the angle between the guide slope 101 and the horizontal plane is the slope of the guide slope 101, that is, in this embodiment, the guide slope 101 is inclined at 60° relative to the horizontal plane.

[0032] Preferably, the overall height of the jig A mainly includes the height of the limiting portion 2 and the height of the guide portion 1 located at the top of the limiting portion 2. In this embodiment, the overall height of the jig A is 25 mm. If the overall height of the jig A is too low, the proportional relationship between the guide portion 1 and the limiting portion 2 will be difficult to adjust appropriately. If the guide portion 1 is too short, it will not be possible to provide a sufficient length of the guide slope 101 to achieve the correction effect; if the limiting portion 2 is too short, it will not be able to have a sufficient fixing effect on the fallen battery cell α, and it is difficult to achieve the limiting effect of the jig A. In addition to being able to play a correction role in a small range, when the battery cell α falls onto the jig A with a large drop deviation, it may happen that one end of the battery cell α is placed on the transfer tray, and the other end is supported by the jig A. At this time, the guide slope 101 will assume the main role of contacting the battery cell α, and there is a certain friction between the guide slope 101 and the battery cell α, so that the battery cell α can be placed on the transfer tray at an angle instead of sliding down quickly. However, if the height of the fixture A is too high, the tilted battery cell α may slide down quickly along the guiding slope 101, which may cause the battery cell α to fall and be damaged.

[0033] Preferably, in the overall height, the ratio between the height of the guide portion 1 and the height of the limiting portion 2 is 6:19. Under this ratio, the guide portion 1 can achieve its deviation correction function, and the limiting portion 2 can effectively limit the position of the battery cell α.

[0034] Preferably, if Figure 2 As shown, the guide portion 1 includes two sets of symmetrically arranged guide slopes 101. When in use, one guide slope 101 is close to the accommodation space and the other is far away. Conversely, when the currently used guide slope 101 is worn, the jig A can be directly removed and then reversed and reinstalled, so that the jig A can be reused, thereby extending the service life of a single jig A.

[0035] Preferably, in this embodiment, if Figure 2 As shown, the mounting portion 3 includes a mounting slot 301 disposed on the top of the fixture A, a mounting channel 302 that vertically passes through the fixture A, the mounting channel 302 is connected to the mounting slot 301, and a fixing member that can pass through the mounting channel 302. In this embodiment, the fixing member used is a screw. When installing the fixture A, a shorter screw can be used, which is directly inserted from the top of the mounting slot 301. After passing through the mounting channel 302, the screw is fixed to the transfer pallet, and then the fixture A is installed on the transfer pallet as a whole. After adopting the mounting portion 3 structure, the mounting portion 3 does not affect the overall height of the fixture A, so it will not affect the limiting portion 2 and the guiding portion 1 from playing their role.

[0036] Embodiment 2:

[0037] A battery cell transport tray, such as Figure 1 As shown, it includes a tray base B, a jig A in several embodiments, and a mounting base C adapted to the mounting portion 3 in the jig A. The tray base B is used to support the battery cell α and the jig A, etc., and several jigs A are placed on the tray base B through the mounting base C to guide and limit the battery cell α.

[0038] In this embodiment, in order to adapt to the corresponding shape of the battery cell α, a total of five jigs A are included. When the battery cell α is placed, two jigs A conflict with the width sides of the battery cell α respectively; among the remaining three jigs A, two jigs A conflict with the length sides of the battery cell α without the pole piece β at the same time, and the remaining battery cell α conflicts with the length side of the battery cell α with the pole piece β and is placed between the two pole pieces β. Under this structure, the five jigs A enclose a storage space, and the battery cell α is placed in place when it is placed in the storage space. The guiding slopes 101 of all jigs A are facing the direction of the storage space, so that when the battery cell α is slightly offset, it can be guided by the guiding slope 101 to move to the seated position of the storage space, thereby achieving the correction effect of the jig A.

[0039] Preferably, when the battery cell α is placed in the accommodation space, the spacing between the limiting surface 201 and the battery cell α is 0-2 mm. When one side of the battery cell α conflicts with the limiting surface 201, that is, there is no spacing, the other side of the battery cell α does not contact the limiting surface 201 and the spacing is 2 mm, which ensures that there is a certain redundant space between the battery cell α and the fixture A. The use of this redundant range, on the one hand, expands the deviation correction working range of the guide part 1, and on the other hand, prevents the spacing between the limiting part 2 and the battery cell α from being too large, ensuring that the limiting part 2 can still play its limiting role.

[0040] Preferably, in this embodiment, if Figure 1 As shown, the mounting base C includes five mounting blocks C01, of which three mounting blocks C01 are arranged parallel to the width side of the battery cell α, and each mounting block C01 is provided with eight mounting positions C02 along the width direction of the battery cell α, and each mounting position C02 includes a mounting hole; two mounting blocks C01 are arranged parallel to the length side of the battery cell α, and each mounting block C01 is provided with two mounting positions C02 along the length direction of the battery cell α, and each mounting position C02 includes two mounting holes. Under this structure, the jig A can be installed on the corresponding mounting position C02 through the mounting portion 3 according to the battery cells α of different sizes, thereby enhancing the versatility of the transfer pallet.

[0041] Finally, it should be noted that the above implementation cases are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the above implementation cases, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above implementation cases, or replace some of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the implementation cases of the utility model.

Claims

1. A jig for a battery cell transport tray, characterized in that: A plurality of jigs (A) are arranged around a transfer pallet to form a receiving space, wherein the jig (A) is characterized in that it comprises a guide portion (1), a limit portion (2) and a mounting portion (3), wherein the guide portion (1) is placed on top of the limit portion (2), and the mounting portion (3) is used to mount the jig (A) on the transfer pallet; The guiding portion (1) comprises a guiding inclined surface (101), the guiding inclined surface (101) is connected to a limiting surface (201) in the limiting portion (2), and the top of the guiding inclined surface (101) is farther away from the accommodation space than the bottom.

2. A jig for a battery cell transport tray according to claim 1, characterized in that: The top of the guiding inclined surface (101) is connected to the remaining surfaces via a transition structure (102).

3. A jig for a battery cell transfer tray according to claim 1, characterized in that: When the fixture (A) is installed, the slope of the guiding inclined surface (101) is.

4. A jig for a battery cell transfer tray according to claim 1, characterized in that: The overall height of the fixture (A) includes the height of the guide portion (1) and the height of the limiting portion (2), and the overall height is 23-25 ​​mm.

5. A jig for a battery cell transport tray according to claim 4, characterized in that: In the overall height, the ratio between the height of the guide portion (1) and the height of the limiting portion (2) is 1:(3-4).

6. A jig for a battery cell transfer tray according to claim 1, characterized in that: The guide portion (1) comprises two groups of symmetrically arranged guide inclined surfaces (101).

7. A jig for a battery cell transfer tray according to claim 1, characterized in that: The mounting portion (3) comprises a mounting notch (301) arranged at the top of the fixture (A), a mounting channel (302) vertically penetrating the fixture (A), the mounting channel (302) being connected to the mounting notch (301), and a fixing member capable of contacting the transfer tray through the mounting channel (302).

8. A battery cell transport tray, characterized in that: It comprises a tray base (B), a plurality of jigs (A) as described in any one of claims 1 to 7, and a mounting base (C) adapted to the mounting portion (3), wherein the jig (A) is mounted on the tray base (B) via the mounting base (C), and a plurality of the jigs (A) together form the accommodating space.

9. A battery cell transport tray according to claim 8, characterized in that: When the battery cell is placed in the accommodation space, the distance between the limiting surface (201) and the battery cell is 0-2 mm.

10. The battery cell transport tray according to claim 8, characterized in that: The mounting base (C) comprises a plurality of mounting blocks (C01), the mounting blocks (C01) comprise a plurality of mounting positions (C02), and the mounting positions (C02) are all compatible with the mounting portion (3).

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