CN216563434U

CN216563434U - Utmost point ear book of electricity core is pressed device

Info

Publication number: CN216563434U
Application number: CN202122962859.9U
Authority: CN
Inventors: 戈志敏; 肖海燕; 刘小华; 张麒
Original assignee: Xinyu Ganfeng Electronics Co Ltd
Current assignee: Xinyu Ganfeng Electronics Co Ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-05-17
Anticipated expiration: 2031-11-29

Abstract

The utility model relates to a tab folding and pressing device of a battery cell, which comprises: an upper pressing plate and a lower pressing plate which are connected through a pressing plate guide post; wherein, the middle part of the lower pressing plate is provided with a positioning mechanism; limiting mechanisms are arranged on two sides of the positioning mechanism; the positioning mechanism can be used for placing the battery cell, and the limiting mechanism can limit the pole lug of the battery cell; the limiting mechanism comprises a limiting column, a limiting spring and a bottom plate; the limiting spring is connected between the limiting column and the bottom plate; the upper pressing plate is matched with the battery core, and the upper pressing plate presses downwards to be matched with the lower pressing plate to bend the lug; when pushing down, limiting mechanism is pushed down by the upper pressing plate, the limiting spring is compressed, and the limiting column enters the lower pressing plate to avoid the limiting mechanism from influencing the folding and pressing effect of the upper pressing plate on the lug.

Description

Utmost point ear book of electricity core is pressed device

Technical Field

The utility model relates to the technical field of battery production, in particular to a tab folding and pressing device of a battery core.

Background

The battery is used as a core part of electronic products, the market demand is increasing, and the types of the battery are increasing to adapt to diversified products. The electric core of some batteries is formed by winding positive and negative pole pieces and a diaphragm.

The TWS bare cell is wound, and the tab is opened linearly (see fig. 7). In order to meet the production requirements of a work station in the subsequent battery production process, the connection part of the tab and the battery cell main body is usually bent along the battery cell main body, and the extension section of the tab is bent back to the original direction (see fig. 8).

In the present production condition, accomplish above-mentioned operation of bending through the manual work, efficiency is lower to can't guarantee the straightness of both ends utmost point ear, electric core outward appearance is crumpled, can not satisfy the production demand of follow-up worker station. In addition, some auxiliary devices are adopted to complete the folding and pressing operation at present, and the interference condition of the upper pressing plate and the lower pressing plate sometimes occurs in the existing folding and pressing device, so that the folding and pressing effect of the battery core pole lug is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the above mentioned technical problems, the present invention provides a tab folding and pressing device for a battery cell.

The technical purpose of the utility model is realized by the following technical scheme:

the utility model provides a utmost point ear crimping device of electricity core, includes:

an upper pressing plate and a lower pressing plate which are connected through a pressing plate guide post;

wherein, the middle part of the lower pressure plate is provided with a positioning mechanism;

limiting mechanisms are arranged on two sides of the positioning mechanism;

the positioning mechanism can be used for placing a battery cell, and the limiting mechanism can limit the pole lug of the battery cell;

the limiting mechanism comprises a limiting column, a limiting spring and a bottom plate;

the limiting spring is connected between the limiting column and the bottom plate;

the upper pressing plate is matched with the battery cell, and the upper pressing plate presses downwards to be matched with the lower pressing plate to bend the lug; when the limiting mechanism is pressed down, the upper pressing plate presses down, the limiting spring is compressed, and the limiting column enters the lower pressing plate to avoid the influence of the limiting mechanism on the folding and pressing effect of the upper pressing plate on the lug.

Furthermore, the middle part of the upper pressure plate is provided with a cell pressing mechanism and two tab pressing mechanisms;

the lug pressing mechanisms are positioned on two sides of the battery cell pressing mechanism;

the battery cell pressing mechanism corresponds to and is matched with the battery cell, and the lug pressing mechanism corresponds to and is matched with the lug in a real mode.

Further, the battery cell pressing mechanism comprises a battery cell pressing block, a battery cell support pillar, a first spring and a cover plate;

the battery cell top column penetrates through the battery cell pressing block and is matched with the battery cell;

the upper end of the battery cell top column is connected with the first spring, and the other end of the first spring is connected with the cover plate.

Furthermore, the lug pressing mechanism comprises a lug pressing block, a second spring and a connecting column;

the second spring is connected to the upper end face of the lug pressing block and matched with the inside of the upper pressing plate;

the connecting column is matched with the upper pressure plate.

Furthermore, the positioning mechanism comprises an ejector rod and a fixed column;

the ejector rod penetrates through the fixed column and can move in the fixed column along the axial direction;

and the fixing column is internally provided with a containing cavity matched with the battery core.

Further, the ejector rod comprises a rod body and an ejector platform;

the top platform is matched with the accommodating cavity.

The utility model has the beneficial effects that:

place electric core through positioning mechanism, carry on spacingly through stop gear to the utmost point ear of electric core, carry out the book of utmost point ear and press the operation to electric core through pushing down the top board with the lower clamp plate cooperation again, can reduce manual operation, lifting efficiency guarantees the straightness of both ends utmost point ear. When pushing down, stop gear by the top board pushes down, and spacing spring compresses, and spacing post can avoid the interference between stop gear and the top board to produce the influence to the book pressure effect of utmost point ear in can getting into the bottom board.

Drawings

Fig. 1 is a three-dimensional structure diagram of a tab folding and pressing device of a battery cell;

fig. 2 is a partial structure diagram of a tab folding and pressing device of a battery cell, showing the inside thereof;

fig. 3 is a partial structure diagram of a tab folding and pressing device of a battery cell showing another angle inside the tab folding and pressing device;

fig. 4 is an exploded view of the positioning assembly and the cell;

FIG. 5 is an exploded view of the positioning assembly;

FIG. 6 is an exploded view of another angle of the positioning assembly;

fig. 7 is a structural diagram after the cell bending operation is completed;

fig. 8 is a structural view of an unfolded battery cell.

1. An upper pressure plate; 2. a lower pressing plate; 3. a positioning mechanism; 4. a limiting mechanism; 5. an electric core; 6. the battery cell pressing mechanism; 7. a tab pressing mechanism; 31. a top rod; 32. fixing a column; 41. a limiting column; 42. a limiting spring; 43. a base plate; 51. a tab; 61. pressing the battery core; 62. a battery cell top column; 63. a first spring; 64. a cover plate; 71. pressing a tab; 72. a second spring; 73. connecting columns; 311. a rod body; 312. a top stage; 321. and a cavity.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1 to 8, a tab folding and pressing device for a battery cell includes:

the upper pressing plate 1 and the lower pressing plate 2 are connected through a pressing plate guide post;

wherein, the middle part of the lower pressure plate 2 is provided with a positioning mechanism 3;

two sides of the positioning mechanism 3 are provided with limiting mechanisms 4;

the positioning mechanism 3 can be used for placing the battery cell 5, and the limiting mechanism 4 can limit the pole ear 51 of the battery cell 5;

wherein, the limiting mechanism 4 comprises a limiting column 41, a limiting spring 42 and a bottom plate 43;

the limiting spring 42 is connected between the limiting column 41 and the bottom plate 43;

the upper pressing plate 1 is matched with the battery core 5, and the upper pressing plate 1 presses downwards to be matched with the lower pressing plate 2 to bend the tab 51; when pushing down, limiting mechanism 4 is pushed down by top board 1, limiting spring 42 compresses, and limiting post 41 gets into in the bottom board 2 to avoid limiting mechanism 4 to influence top board 1 to the book of utmost point ear 51 and press the effect.

Specifically, place electric core 5 on positioning mechanism 3, rethread stop gear 4 can be spacing to utmost point ear 51 of electric core 5, make whole electric core stably locate on holding down plate 2, through down pressing top board 1, utilize the position that top board 1 corresponds to push down utmost point ear 51 and bend, the in-process of pushing down, when top board 1 contacts spacing post 41, can push down spacing post 41, and make spacing post 41 get into in holding down plate 2 spacing spring 42 compression, let top board 1 and holding down plate 2 cooperation with utmost point ear 51 extension straight. Therefore, the interference between the limiting column 41 and the upper pressure plate 1 is avoided, and the flatness of the extending section of the pole lug 51 is not influenced. After the folding and pressing process is finished, the upper pressure plate 1 moves upwards, and the limiting column 41 can be rebounded and reset by the limiting spring 42.

Optionally, the middle part of the upper pressure plate 1 is provided with a cell pressing mechanism 6 and two tab pressing mechanisms 7;

the lug pressing mechanisms 7 are positioned at two sides of the battery cell pressing mechanism 6;

the cell pressing mechanism 6 corresponds to and is matched with the cell 5, and the tab pressing mechanism 7 corresponds to and is matched with the tab 51.

It should be noted that the device is suitable for a battery cell with two-end tabs 51 arranged at 180 degrees from the center of the battery cell 5, the tabs 51 at two ends are located at two sides of the battery cell 5, the cell pressing mechanism 6 is pressed down to be matched with the main body of the battery cell 5, and the tabs 51 at two sides are respectively pressed down by the tabs pressing mechanisms 7 at two sides.

Optionally, the cell pressing mechanism 6 includes a cell pressing block 61, a cell top post 62, a first spring 63, and a cover plate 64;

the cell top column 62 penetrates through the cell pressing block 61 and is matched with the cell 5;

the upper end of the battery core top column 62 is connected with a first spring 63, and the other end of the first spring 63 is connected with a cover plate 64.

When the upper press plate 1 is pressed down, the battery cell 5 contacts with the battery cell supporting column 62, and when the pressing down is continued again, the battery cell 5 supports the battery cell supporting column 62 to upwards extrude the first spring 63, so that the battery cell 5 enters the battery cell press block 61, and the corresponding tab 51 is pressed down and bent outside the battery cell press block 61. The cover plate 64 is connected to the upper end surface of the upper platen 1.

Optionally, the tab pressing mechanism 7 includes a tab pressing block 71, a second spring 72, and a connecting column 73;

the second spring 72 is connected to the upper end face of the tab pressing block 71 and matched with the inside of the upper pressing plate 1;

the connecting column 73 is matched with the upper pressure plate 1.

When the upper pressure plate 1 is pressed down, the tab pressing block 71 can keep the extension section of the tab 51 straight. It should be noted that when the tab pressing block 71 is pressed down, the tab pressing block 71 contacts the limiting column 41 and presses the limiting column 41 down to enter the lower pressing plate 2 through compressing the limiting spring 42, so that the tab pressing block 71 and the lower pressing plate 2 press the tab 51 in the middle, and the interference of the tab pressing block 71 by the limiting column 41 is avoided, and the tab is prevented from being insufficiently pressed and straightened.

Optionally, the positioning mechanism 3 includes a top rod 31 and a fixing column 32;

the top rod 31 passes through the fixed column 32 and can move in the fixed column 32 along the axial direction;

the fixing post 32 has a cavity 321 therein, which is adapted to the battery cell 5.

The battery cell 5 is placed in the accommodating cavity 321, the ejector rod 31 blocks and supports the battery cell 5 at the bottom, and after the bending operation of the battery cell 5 is completed, the ejector rod 31 can be pushed to eject the battery cell 5.

Optionally, the top bar 31 includes a bar body 311 and a top platform 312;

the top platform 312 fits into the cavity 321.

The top platform 312 may block and support the battery cell 5 at the bottom, the size of the top platform is adapted to the accommodating cavity 321, one end of the rod body 311 is connected to the top platform 312, and the other end of the rod body penetrates through the fixing column 32 and is movable, and after the bending operation of the battery cell 5 is completed, the rod body 311 may be pushed to eject the battery cell 5.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundary of the appended claims, or the equivalents of such scope and boundary.

Claims

1. The utility model provides a utmost point ear crimping device of electricity core which characterized in that includes:

an upper pressure plate (1) and a lower pressure plate (2) which are connected through a pressure plate guide post;

wherein, the middle part of the lower pressure plate (2) is provided with a positioning mechanism (3);

limiting mechanisms (4) are arranged on two sides of the positioning mechanism (3);

the positioning mechanism (3) can be used for placing an electric core (5), and the limiting mechanism (4) can limit a lug (51) of the electric core (5);

the limiting mechanism (4) comprises a limiting column (41), a limiting spring (42) and a bottom plate (43);

the limiting spring (42) is connected between the limiting column (41) and the bottom plate (43);

the upper pressing plate (1) is matched with the battery core (5), and the upper pressing plate (1) presses downwards to be matched with the lower pressing plate (2) to bend the lug (51); when pushing down stop gear (4) quilt top board (1) pushes down, spacing spring (42) compression, spacing post (41) get into in bottom board (2), in order to avoid stop gear (4) influence top board (1) is to the book pressure effect of utmost point ear (51).

2. The tab folding and pressing device of the battery cell of claim 1, characterized in that:

the middle part of the upper pressure plate (1) is provided with a battery cell pressing mechanism (6) and two lug pressing mechanisms (7);

the lug pressing mechanisms (7) are positioned on two sides of the battery cell pressing mechanism (6);

the battery cell pressing mechanism (6) corresponds to and is matched with the battery cell (5), and the lug pressing mechanism (7) corresponds to and is matched with the lug (51).

3. The tab folding and pressing device of the battery cell of claim 2, characterized in that:

the battery cell pressing mechanism (6) comprises a battery cell pressing block (61), a battery cell top column (62), a first spring (63) and a cover plate (64);

the cell top column (62) penetrates through the cell pressing block (61) and is matched with the cell (5);

the upper end of the battery cell top column (62) is connected with the first spring (63), and the other end of the first spring (63) is connected with the cover plate (64).

4. The tab folding and pressing device of the battery cell of claim 2, characterized in that:

the tab pressing mechanism (7) comprises a tab pressing block (71), a second spring (72) and a connecting column (73);

the second spring (72) is connected to the upper end face of the tab pressing block (71) and matched with the inside of the upper pressing plate (1);

the connecting column (73) is matched with the upper pressure plate (1).

5. The tab folding and pressing device of the battery cell of claim 1, characterized in that:

the positioning mechanism (3) comprises an ejector rod (31) and a fixing column (32);

the ejector rod (31) penetrates through the fixed column (32) and can move in the fixed column (32) along the axial direction;

the fixing column (32) is internally provided with a cavity (321) matched with the battery cell (5).

6. The tab folding and pressing device of the battery cell of claim 5, wherein:

the ejector rod (31) comprises a rod body (311) and an ejector platform (312);

the top platform (312) is adapted to the cavity (321).