Square battery cell circulation device

Abstract

The utility model provides a square battery cell circulation device, which relates to the technical field of battery cell circulation, and comprises a transfer piece and an installation piece fixed on the transfer piece, the installation piece is used for placing a battery cell and circulates along with the transfer piece, the mirror image sides of two pole pieces of the battery cell deviate from the symmetrical plane of the battery cell between the two pole pieces, and the installation piece is arranged at the top end of the transfer piece. A limiting block which is attached to the side wall of the battery cell and is clamped between two pole pieces of the battery cell is arranged at one end of the mounting piece; the two pole pieces of the battery cell are asymmetrically arranged, and the limiting block is matched with the two pole pieces of the battery cell, so that the battery cell can only be placed on the mounting piece in one mode, if the placement positions are staggered, interference exists between the pole pieces of the battery cell and the limiting block, the battery cell cannot be placed in the groove of the mounting piece, and personnel can timely find that the placement positions of the battery cell are wrong; and the reject ratio after module assembly is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core circulation, and in particular to a square battery core circulation device. Background Art

[0002] Square battery cells are a common form of battery with a square or rectangular shape. They are usually used in electric vehicles, energy storage systems and other fields. The square battery cells are transferred from one workstation to another through a conveying system, the positioning system accurately positions the battery cells, and then the battery cells are transferred to the inspection system through a flow device, and the inspection system performs quality inspection on the battery cells.

[0003] In the prior art, since the battery cells need to be placed on corresponding mounting seats during electrical testing, the battery cells are manually placed on corresponding mounting seats and the polarity of the battery cells is observed by naked eyes to see if it is placed correctly. As a result, it is very easy for the polarity of the battery cells to be observed incorrectly during the circulation step, resulting in incorrect polarity placement of the battery cells. After the battery cells are loaded, the battery cells are not positioned correctly due to incorrect polarity, which greatly increases the failure rate after module assembly. Utility Model Content

[0004] In order to solve the above technical problems, the utility model uses a limit block to cooperate with a battery cell with two asymmetrically arranged pole pieces, and the battery cell can only be placed on the mounting piece in one way. The specific technical solution is as follows:

[0005] A square battery cell circulation device comprises a transport member and a mounting member fixed on the transport member, wherein the mounting member is used to place the battery cell and circulate with the transport member, the mirror image edges of the two pole pieces of the battery cell are offset from the symmetric plane of the battery cell between the two pole pieces, the mounting member is arranged at the top of the transport member, and a groove for fitting the battery cell is arranged inside, and a limiting block is arranged at one end of the mounting member, which fits the side wall of the battery cell and is clamped between the two pole pieces of the battery cell.

[0006] Preferably, the transfer member comprises a bottom plate, and the mounting member is mounted on the top end of the bottom plate.

[0007] Preferably, a waist-shaped hole is provided on the side wall where the mounting member contacts the transfer member.

[0008] Preferably, the mounting member includes a mounting seat 1 and a mounting seat 2 which are combined to form a mounting seat fitting the battery cell slot, and the mounting seat 1 and the mounting seat 2 are provided with waist-shaped holes on the water surface along the direction of expanding the battery cell slot space.

[0009] Preferably, the edge of the cell slot formed by the first mounting seat and the second mounting seat is provided with a side edge that fits with the side wall of the cell.

[0010] It can be seen from the above technical solutions that the utility model has the following beneficial effects:

[0011] The utility model places a battery cell with two asymmetrically arranged pole pieces on a mounting piece, and the limiting blocks cooperate with the two pole pieces of the battery cell so that the battery cell can only be placed on the mounting piece in one way. If the placement position is misplaced, there will be interference between the battery cell pole pieces and the limiting blocks, and the battery cell cannot be placed in the groove of the mounting piece, which ensures that personnel can discover the wrong placement of the battery cell in time, greatly reducing the unqualified rate after module assembly.

[0012] The mounting piece is composed of a mounting seat 1 and a mounting seat 2. The waist-shaped hole can adjust the relative position relationship between the mounting seat 1 and the mounting seat 2, and the space of the groove between the mounting seat 1 and the mounting seat 2 can be adjusted to adapt to the circulation and use of battery cells of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the utility model without the battery core;

[0015] Figure 3 This is a schematic diagram of the second state structure of the mounting piece of the utility model.

[0016] Figure 4 It is a structural schematic diagram of the transfer part of the utility model;

[0017] Figure 5 It is a schematic diagram of the forward structure of the battery cell electrode of the utility model;

[0018] Figure 6 It is a schematic diagram of the forward structure of the cooperation between the battery cell electrode piece and the limit block of the utility model.

[0019] In the figure: 10, transfer part; 101, bottom plate; 102, handle; 103, cam follower; 104, wear-resistant strip; 20, mounting part; 201, mounting seat 1; 202, mounting seat 2; 2021, limit block; 203, waist-shaped hole; 204, gasket; 205, side; 30, battery cell. DETAILED DESCRIPTION

[0020] The following is a detailed description of the present invention in conjunction with the accompanying drawings and specific embodiments. Before describing in detail the technical solutions of each embodiment of the present invention, the nouns and terms involved are explained. In this specification, components with the same name or the same number represent similar or identical structures and are only for illustrative purposes.

[0021] like Figure 1 and Figure 2As shown, a square battery cell circulation device includes a transport member 10 and a mounting member 20 fixed on the transport member 10, the mounting member 20 is used to place the battery cell 30 and circulate with the transport member 10, the mirror edge of the two pole pieces of the battery cell 30 is offset from the symmetry plane of the battery cell 30 located between the two pole pieces, the mounting member 20 is set at the top of the transport member 10, and a groove for fitting the battery cell 30 is provided inside, and a limit block 2021 is provided at one end of the mounting member 20, which is fitted to the side wall of the battery cell 30 and clamped between the two pole pieces of the battery cell 30, wherein the limit block 2021 is fitted to the side wall of the battery cell 30 and is located between the two pole pieces to ensure the limitation of the battery cell 30 during the circulation process.

[0022] The explanation for the deviation between the mirror image edge of the two pole pieces of the battery cell 30 and the symmetry plane between the two pole pieces of the battery cell 30, that is, the asymmetric arrangement of the two pole pieces of the battery cell 30, is as follows:

[0023] like Figure 5 and Figure 6 As shown, the electrode piece of the battery cell 30 is taken as a square. The side lengths of the electrode pieces of the battery cell 30 are divided into two categories. One category represents the side length parallel to the symmetry plane, and the other category represents the side length perpendicular to the symmetry plane, which is denoted as A. The side length parallel to the symmetry plane is further divided into the side length close to the symmetry plane and the side length close to the corner of the battery cell 30, which are denoted as B and C respectively. The symmetry plane between the two electrode pieces of the battery cell 30 is denoted as D. The mirror side represents the side lengths of the two electrode pieces of the battery cell 30 that are approximately symmetrical about the symmetry plane D, such as A, B and C located on both sides of the symmetry plane D.

[0024] The above-mentioned distance judgment point and the symmetry plane D judgment result can be divided into three types:

[0025] ① The side length B of the two pole pieces and the symmetry plane D are not symmetrically set, that is, the side length B of the two pole pieces is set with deviation;

[0026] ② The side length A of the two pole pieces and the symmetry plane D are not symmetrically set, that is, the side length A of the two pole pieces is set with deviation;

[0027] ③ The side length C of the two pole pieces and the symmetry plane D are symmetrically set, that is, the side length C of the two pole pieces is set with a deviation.

[0028] As long as one of the asymmetric settings A, B or C is satisfied, it means that the two pole pieces of the battery cell 30 are asymmetric about D, that is, the pole pieces mentioned above are asymmetric about the symmetric plane D of the battery cell 30 .

[0029] The shape of the limit block 2021 can be set in various ways and can be set accordingly with the two pole pieces of the battery cell 30. For example, when the pole piece is set into an asymmetric rhombus, the end of the limit block 2021 facing the corresponding pole piece is set into an inclined surface that fits the rhombus, so that after the battery cell 30 is placed in the mounting member 20, the limit block 2021 limits the pole piece of the battery cell 30, so that the battery cell 30 is placed in the mounting member 20, and the battery cell 30 is placed in the opposite direction. Since the two pole pieces of the battery cell 30 are asymmetric, the inclined surface of the rhombus will interfere with the limit block 2021, affecting the placement of the battery cell 30 into the mounting member 20.

[0030] In the two pole pieces of the battery cell 30, the limiting block 2021 has a groove near one of the pole pieces, and the pole piece and the groove of the limiting block 2021 are mutually embedded to achieve a fitting effect, as shown in detail. Figure 6 shown.

[0031] like Figure 1-Figure 3 As shown, the transfer member 10 includes a base plate 101, and the mounting member 20 is mounted on the top of the base plate 101. Handles 102 are installed at both ends of the transfer member 10 for easy picking. Stop blocks are also arranged on both sides of the base plate 101 for easy detection in subsequent processes. Among them, the mounting member 20 can be arranged in multiple groups, preferably four groups. The four groups of mounting members 20 are fixedly mounted on the top surface of the base plate 101. The battery cell 30 is placed in the groove at the top of the mounting member 20, and the two pole pieces of the battery cell 30 are located on both sides of the limit block 2021. The limit block 2021 is attached between the two pole pieces of the battery cell 30, so that the battery cell 30 can only fall into the groove of the mounting member 20 in one way. If the two pole pieces of the battery cell 30 are swapped, the battery cell 30 cannot be placed in the groove of the mounting member 20 due to the asymmetrical arrangement of the two pole pieces of the battery cell 30, which can remind the personnel that the position is placed incorrectly, and the position needs to be corrected in time before the battery cell 30 can be placed, so as to avoid the wrong position of the pole pieces of the battery cell 30.

[0032] A waist-shaped hole 203 is provided on the side wall where the mounting member 20 contacts the transfer member 10, wherein the mounting member 20 can be integrally formed, and the waist-shaped hole 203 can adjust the positional relationship between the mounting member 20 and the base plate 101, so as to facilitate corresponding adjustment of the placement position of the battery cell 30.

[0033] like Figure 2 and Figure 3As shown, the mounting member 20 includes a mounting seat 1 201 and a mounting seat 202 which are combined to form a groove for fitting the battery cell 30, and the mounting seat 1 201 and the mounting seat 2 202 are provided with waist-shaped holes 203 on the water surface along the direction of expanding the space of the groove of the battery cell 30, wherein the mounting seat 1 201 and the mounting seat 2 202 can be fixed to each other to form a groove for accommodating the battery cell 30, and the overall position of the mounting seat 1 201 and the mounting seat 2 202 can be adjusted by the waist-shaped holes 203, preferably, the mounting seat 1 201 and the mounting seat 2 202 can be adjusted to each other, and the space of the groove of the battery cell 30 can be expanded by pulling the mounting seat 1 201 and the mounting seat 2 202 back and forth along the direction of the waist-shaped holes 203, so that different types of battery cells 30 can be transported, thereby improving the application range of the battery cell 30.

[0034] The edge of the battery cell 30 groove formed by the mounting seat 1 201 and the mounting seat 2 202 is provided with a side edge 205 that fits with the side wall of the battery cell 30, and the side wall of the side edge 205 is installed with a gasket 204 that fits with the battery cell 30, wherein the side edge 205 is fixed to the edge of the mounting seat 1 201 and the mounting seat 2 202, and plays a limiting role on the side wall of the battery cell 30 to prevent the battery cell 30 from being offset when placed in the groove of the mounting member 20, and the mounting seat 1 201, the mounting seat 202 and the side wall of the side edge 205 facing the battery cell 30 are all installed with a gasket 204, and the gasket 204 is made of bakelite, which can effectively avoid scratching the battery cell 30.

[0035] like Figure 4 As shown, a cam follower 103 and a wear-resistant strip 104 are installed on the side of the base plate 101 away from the mounting member 20. The wear-resistant strip 104 is arranged in a square shape. The wear-resistant strip 104 is treated with special chemicals to effectively reduce the wear caused by friction with the wire body and ensure the service life. The cam follower 103 is installed on the wear-resistant strip 104 and can be used for guiding and smooth operation.

[0036] When in use, the battery cell 30 is placed in the groove of the mounting member 20, with the two poles of the battery cell 30 located on both sides of the limit block 2021. The battery cell 30 is limited by the contour design, which can effectively prevent the battery cell 30 from being placed in the wrong position. At the same time, the mounting seat 1 201 and the mounting seat 2 202 are adjustable, and can be suitable for different models of battery cells 30.

[0037] The above-described embodiments are merely descriptions of preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A square battery cell circulation device, comprising a transport member (10) and a mounting member (20) fixed to the transport member (10), wherein the mounting member (20) is used to place a battery cell (30) and circulate with the transport member (10), characterized in that: The mounting member (20) is arranged at the top end of the transport member (10), and a groove is arranged inside the mounting member for fitting the battery cell (30), the mirror image edge of the two pole pieces of the battery cell (30) is offset from the symmetric plane of the battery cell (30) located between the two pole pieces, and a limiting block (2021) is arranged at one end of the mounting member (20) for fitting on the side wall of the battery cell (30) and clamped between the two pole pieces of the battery cell (30).

2. The square battery cell circulation device according to claim 1, characterized in that: The transfer member (10) comprises a bottom plate (101), and the mounting member (20) is mounted on the top end of the bottom plate (101).

3. The square battery cell circulation device according to claim 1, characterized in that: A waist-shaped hole (203) is provided on the side wall of the mounting member (20) that contacts the transfer member (10).

4. The square battery cell circulation device according to claim 1, characterized in that: The mounting member (20) comprises a mounting seat 1 (201) and a mounting seat 2 (202) which are combined to form a groove fitting the battery cell (30). The mounting seat 1 (201) and the mounting seat 2 (202) are provided with waist-shaped holes (203) on the water surface along a direction to expand the space of the groove of the battery cell (30).

5. The square battery cell circulation device according to claim 4, characterized in that: The edge of the groove of the battery cell (30) formed by the first mounting seat (201) and the second mounting seat (202) is provided with a side edge (205) that fits with the side wall of the battery cell (30).

6. The square battery cell circulation device according to claim 5, characterized in that: A gasket (204) that fits the battery core (30) is installed on the side wall of the side edge (205).

7. The square battery cell circulation device according to claim 2, characterized in that: A cam follower (103) and a wear strip (104) are mounted on a side of the bottom plate (101) away from the mounting member (20).

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