CN220239728U

CN220239728U - Jig convenient for bending battery lugs

Info

Publication number: CN220239728U
Application number: CN202321648036.1U
Authority: CN
Inventors: 戈巧瑜; 刘静铜; 刘敏; 何杨林; 陈�基
Original assignee: Guangdong Hui Innovative Energy Co ltd
Current assignee: Guangdong Hui Innovative Energy Co ltd
Priority date: 2023-06-27
Filing date: 2023-06-27
Publication date: 2023-12-26
Anticipated expiration: 2033-06-27

Abstract

The utility model belongs to the technical field of lithium ion battery preparation, and particularly relates to a jig convenient for bending battery lugs, which comprises a bottom plate and a bending part; the bottom plate is of a plate-shaped structure, and the bending part is arranged on one side of the bottom plate and is connected with the bottom plate; the bending part is provided with two parallel and symmetrical bending grooves, two bending grooves are perpendicular to the bottom plate, the bending part comprises a first side face and a second side face, the bottom of the first side face is provided with an inclined plane, and the inclined plane is arranged at the bottom of the whole bending part. The bottom plate is used for placing the battery, after placing the battery on the bottom plate, the tab of battery passes the connecting piece and arranges the bending groove of bending portion in, later bend the tab downwardly in the bending groove, and the effect of inclined plane lies in making things convenient for the tab to roll over the angle of bending of suitable follow-up processing, can guarantee the uniformity of bending of battery tab through the bending groove simultaneously, prevents to excessively bend and leads to the tab fracture.

Description

Jig convenient for bending battery lugs

Technical Field

The utility model belongs to the technical field of lithium ion battery preparation, and particularly relates to a jig convenient for bending battery lugs.

Background

Lithium ion batteries are widely focused on industries such as electric automobiles and 3C because of the advantages of high energy density, no memory effect, long cycle life, environmental friendliness and the like, and are a secondary battery which mainly relies on lithium ions to move between a positive electrode and a negative electrode for working, and in the charge and discharge process, the lithium ions are inserted and extracted back and forth between the two electrodes: during charging, lithium ions are deintercalated from the positive electrode and are intercalated into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; in contrast, when discharged, batteries generally use materials containing lithium as electrodes, which are typical of modern high performance batteries.

In the lithium battery production process, the lug of the battery is required to be placed in the connecting piece, a plurality of pairs of containing holes corresponding to the lug of the battery are arranged in the connecting piece, the lug of the battery is placed in the containing holes, then the lug of the battery is respectively bent towards two opposite directions, the bent lug is contacted with the connecting piece, after one lug of the battery is bent, the other battery is stacked on the previous battery, and then the lug is bent, so that the battery at the lowest layer in the prior art is reciprocating, but the battery at the lowest layer cannot be bent due to too short distance from the plane of the battery, the whole battery pack is usually taken out after the lugs of the battery except the lug at the lowest layer are bent, the lug of the battery pack is bent upwards, the operation step is increased, the working efficiency is reduced, and the bending consistency of the lugs of the battery at the lowest layer cannot be ensured.

Disclosure of Invention

The utility model aims at: aiming at the defects of the prior art, the utility model provides a jig which is convenient for bending battery lugs, so as to solve the technical problem that the battery lugs at the lowest layer of the battery pack are inconvenient to bend when the battery pack is assembled by the prior method.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a fixture for facilitating bending of battery lugs comprises a bottom plate and a bending part;

the bottom plate is of a plate-shaped structure, and the bending part is arranged on one side of the bottom plate and is connected with the bottom plate;

the bending part is provided with two parallel and symmetrical bending grooves, the two bending grooves are perpendicular to the bottom plate, the bending part comprises a first side face and a second side face, the bottom of the first side face is provided with an inclined plane, and the inclined plane is arranged at the bottom of the bending part.

Further, the bottom plate is provided with baffle plates, at least two baffle plates are arranged, and the baffle plates are symmetrically arranged on the bottom plate.

Further, the second side surface of the bending part is connected with the baffle plate and the bottom plate.

Further, the bottom plate is further provided with grooves, at least two grooves are formed in the bottom plate, and the grooves are symmetrically formed in the bottom plate.

Further, the angle between the inclined plane and the first side surface is 15-35 degrees.

Further, the bottom of the bending groove is higher than the bottom plate.

Further, the bottom of the bending groove is provided with a rounding, and the radius of the rounding is 1-3mm.

Further, the bending assembly comprises a connecting rod and a bending block, the bending part is provided with a sliding groove for the connecting rod to move up and down, the connecting rod is arranged in the sliding groove, the bending block is arranged in the bending groove, and the connecting rod penetrates through the bending block and the bending part and stretches out of the bending part.

Further, the bending block is a cylinder, and the cylinder is provided with a plane matched with the inclined plane.

Further, the bottom of the bending part is planar and is flush with the bottom of the bottom plate, and the bottom of the bending part is provided with a containing groove corresponding to the bending groove.

The jig for facilitating bending of the battery lugs has the beneficial effects that the jig comprises a bottom plate and a bending part; the bottom plate is of a plate-shaped structure, and the bending part is arranged on one side of the bottom plate and is connected with the bottom plate; the bending part is provided with two parallel and symmetrical bending grooves, two bending grooves are perpendicular to the bottom plate, the bending part comprises a first side face and a second side face, the bottom of the first side face is provided with an inclined plane, and the inclined plane is arranged at the bottom of the whole bending part. The bottom plate is used for placing the battery, after placing the battery on the bottom plate, the tab of battery passes the connecting piece and arranges the bending groove of bending portion in, later bend the tab downwardly in the bending groove, and the effect of inclined plane lies in making things convenient for the tab to roll over the angle of bending of suitable follow-up processing, can guarantee the uniformity of bending of battery tab through the bending groove simultaneously, prevents to excessively bend and leads to the tab fracture.

Drawings

Features, advantages, and technical effects of exemplary embodiments of the present utility model will be described below with reference to fig. 1 to 4.

FIG. 1 is a schematic diagram of the overall structure of a battery tab bending jig according to the present utility model;

FIG. 2 is a cross-sectional view of a battery tab bending jig according to the present utility model;

FIG. 3 is a schematic diagram of an assembly structure of a battery tab bending jig and a battery pack according to the present utility model;

fig. 4 is a schematic overall structure of the second and third embodiments of the present utility model.

In the figure: 1. a bottom plate; 2. a baffle; 3. a bending part; 4. a bending assembly;

11. a groove;

31. a bending groove; 32. an inclined plane; 33. rounding; 34. a receiving groove; 35. a first side; 36. a second side;

41. a connecting rod; 42. bending blocks; 43. a sliding groove.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first," "second," etc. are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, which means that three relationships may exist, for example, a and/or B may mean: a alone, both a and B, and a plurality of cases alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural sheets" refers to two or more (including two).

In the description of the embodiments of the present application, the orientation or positional relationship indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the embodiments of the present application and for simplifying the description, rather than indicating or implying that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to the specific circumstances.

The present utility model will be described in further detail with reference to fig. 1 to 4, but the present utility model is not limited thereto.

Example 1

As shown in fig. 1 to 3, the present embodiment is a fixture for facilitating bending of a tab 61 of a battery 6, and includes a bottom plate 1 and a bending portion 3; the bottom plate 1 is of a plate-shaped structure, and the bending part 3 is arranged on one side of the bottom plate 1 and is connected with the bottom plate 1; the bending part 3 is provided with two parallel and symmetrical bending grooves 31, the two bending grooves 31 are perpendicular to the bottom plate 1, the bending part 3 comprises a first side face 35 and a second side face 36, the bottom of the first side face 35 is provided with an inclined face 32, and the inclined face 32 is arranged at the bottom of the whole bending part 3. The bottom plate 1 is used for placing the battery 6, after placing the battery 6 on the bottom plate 1, the tab 61 of the battery 6 passes through the connecting piece 5 and is placed in the bending groove 31 of the bending part 3, then the tab 61 is pressed downwards in the bending groove 31 to be bent, and the inclined plane 32 has the function of facilitating the tab 61 to be folded out by a bending angle suitable for subsequent processing, and meanwhile, the bending consistency of the tab 61 can be ensured through the bending groove 31, so that the tab 61 is prevented from being broken due to excessive bending.

The bottom plate 1 is provided with baffle 2, and baffle 2 sets up two at least, and baffle 2 symmetry sets up in bottom plate 1. Baffle 2 passes through the screw fixation on bottom plate 1, and the screw upwards fixes baffle 2 from the bottom of bottom plate 1, and set up the effect of baffle 2 one lie in, when bending to battery 6, need place battery 6 on bottom plate 1, and baffle 2 can play location and spacing effect to battery 6, prevent that battery 6 from rocking about when bending and leading to the inconsistency that tab 61 was bent, and secondly, one side and the portion of bending 3 of baffle 2 pass through screwed connection, the screw locks to one side of baffle 2 from the one side of portion of bending 3, baffle 2 plays the effect of supporting and fixing to portion of bending 3.

The second side 36 of the bent portion 3 is connected to the baffle plate 2 and the bottom plate 1. As described above, the bottom of the bending portion 3 is connected to the bottom plate 1, and the other portion of the second side 36 of the bending portion 3 is connected to the baffle plate 2, so that the tightening degree between the bending portion 3, the bottom plate 1 and the baffle plate 2 can be enhanced, and the bending jig is prevented from shaking as a whole.

The bottom plate 1 is also provided with grooves 11, at least two grooves 11 are arranged, and the grooves 11 are symmetrically arranged on the bottom plate 1. When bending the tab 61, the battery 6 needs to be placed on the bottom plate 1 first, after bending the tab 61, the battery 6 needs to be taken out, and the battery 6 is generally sheet-shaped, is in close contact with the bottom plate and is not easy to take, the groove 11 is arranged to facilitate the taking of the battery 6, when placing the battery 6 on the bottom plate 1, the side edge of the battery 6 is just suspended on the groove 11, after bending the tab 61, the battery 6 can be easily taken out of the tab 61 through the suspended part of the side edge of the battery 6, and the time and labor are saved.

The angle between the bevel 32 and the first side 35 is 15-35. Specifically, the angles adopted by the inclined plane 32 are 15 °, 20 °, 25 °, 30 °, 35 °, and in this embodiment, the angle adopted by the inclined plane 32 is 25 °, the inclined plane 32 is set to be the optimal choice, the inclined plane 32 is set to be 15 °, the bending angle of the tab 61 cannot meet the requirement of subsequent processing, and the inclined plane 32 is set to be 35 °, so that the tab 61 has a hidden danger of tearing during bending.

The bottom of the bending groove 31 is higher than the bottom plate 1. The battery 6 and the tab 61 are provided with a small step, the bottom of the bending part 3 is higher than the bottom plate 1 and is the same as the small step between the battery 6 and the tab 61 in height, and the small step between the battery 6 and the tab 61 is matched with the part of the bending part 3, which is higher than the bottom plate 1, so that the battery 6 can be matched with the battery 6 to the greatest extent, the bending consistency is better kept when the tab 61 is bent, and the positioning effect on the battery 6 is also mentioned.

The bottom of the bending groove 31 is provided with a round 33, and the radius of the round 33 is 1-3mm. Specifically 1mm, 1.5mm, 2mm, 2.5mm, 3mm, radius of the radius 33 is specifically 2mm in this application, when the bottom of the portion of bending 3 sets up the radius 33 and can conveniently bend to the tab 61, prevent to lead to the tab 61 to tear when the tab 61 is folding, set up the radius 33 with the bottom of bending groove 31, when the tab 61 is bending, promote the smoothness that the tab 61 was bent, effectually reduce the tab 61 and take place the hidden danger of tearing.

When the tab 61 is bent, the positive electrode tab 61 and the negative electrode tab 61 of the battery 6 need to face different directions, after the battery 6 is placed on the bending jig, one of the positive electrode tab 61 or the negative electrode tab 61 is bent downward, then the battery 6 is taken out through the groove 11, the battery 6 is turned over, and the other tab 61 is bent.

As shown in fig. 3, the working principle of the present utility model is that the connecting piece 5 is firstly placed on the bending jig for the tab 61 of the battery 6, the connecting piece 5 is contacted with the second side 36 of the connecting portion, then the battery 6 is placed on the base, the tab 61 of the battery 6 is inserted into the accommodating groove of the lowest layer of the connecting piece 5, then the tab 61 of the battery 6 is bent, then another battery 6 is placed on the first battery 6, and then the tab 61 is placed in the accommodating groove for bending, and so on until the accommodating groove on the connecting piece 5 is fully filled.

Example two

As shown in fig. 4, the embodiment is different from the embodiment in that the bending assembly 4 further comprises a bending assembly 4, the bending assembly 4 comprises a connecting rod 41 and a bending block 42, the bending portion 3 is provided with a sliding groove 43 for the connecting rod 41 to move up and down, the connecting rod 41 is arranged in the sliding groove 43, the bending block 42 is arranged in the bending groove 31, and the connecting rod 41 penetrates through the bending block 42 and the bending portion 3 and stretches out of the bending portion 3.

When placing battery 6 on bottom plate 1, place tab 61 in bending groove 31, bend tab 61 through bending subassembly 4 afterwards, this mode can promote the uniformity that tab 61 was bent greatly, easy operation, convenient simultaneously.

The bending block 42 is a cylinder having a flat surface matching the inclined surface 32. When the tab 61 is folded by the bending assembly 4, one side of the cylinder with a plane is contacted with the tab 61, then the connecting rod 41 is pressed down, the connecting rod 41 drives the cylinder to move, the cylinder can rotate by taking the connecting rod 41 as a center, when the cylinder moves downwards, the cylinder rotates by taking the connecting rod 41 as a center due to the resistance of the tab 61, and when the cylinder moves downwards, the cylinder slowly rotates to be engaged with the inclined plane 32, so that the tab 61 is bent.

Other structures are the same as those of the first embodiment, and redundant description is omitted in this embodiment.

Example III

As shown in fig. 4, a difference from the first embodiment is that the bottom of the bending portion 3 is planar and flush with the bottom of the bottom plate 1 in this embodiment, and the bottom of the bending portion 3 is provided with a receiving groove 34 corresponding to the bending groove 31.

As shown in fig. 4, in the first embodiment, the position of the inclined plane 32 is set to be a plane perpendicular to the bottom plate 1, and the bottom of the bending portion 3 is a plane consistent with the bottom of the bottom plate 1, so that the arrangement can improve the stability of the tab 61 bending jig when bending the tab 61, and when bending the tab 61, the bottom of the bending portion 3 can transmit a part of force to the ground or other placement planes.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the embodiments of the disclosure may be suitably combined to form other embodiments as will be understood by those skilled in the art.

Variations and modifications of the above embodiments will occur to those skilled in the art to which the utility model pertains from the foregoing disclosure and teachings. Therefore, the present utility model is not limited to the above-described embodiments, but is intended to be capable of modification, substitution or variation in light thereof, which will be apparent to those skilled in the art in light of the present teachings. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present utility model in any way.

Claims

1. Tool convenient to battery tab is bent, its characterized in that: comprises a bottom plate and a bending part;

2. The fixture for facilitating bending of battery tabs according to claim 1, wherein: the bottom plate is provided with baffle plates, the baffle plates are at least provided with two baffle plates, and the baffle plates are symmetrically arranged on the bottom plate.

3. The jig for facilitating bending of battery tabs according to claim 2, wherein: the second side face of the bending part is connected with the baffle plate and the bottom plate.

4. The fixture for facilitating bending of battery tabs according to claim 1, wherein: the bottom plate is further provided with grooves, at least two grooves are formed in the bottom plate, and the grooves are symmetrically formed in the bottom plate.

5. The fixture for facilitating bending of battery tabs according to claim 1, wherein: the angle between the inclined plane and the first side surface is 15-35 degrees.

6. The fixture for facilitating bending of battery tabs according to claim 1, wherein: the bottom of the bending groove is higher than the bottom plate.

7. The fixture for facilitating bending of battery tabs according to claim 1, wherein: the bottom of the bending groove is provided with a rounding, and the radius of the rounding is 1-3mm.

8. The fixture for facilitating bending of battery tabs according to claim 1, wherein: the bending assembly comprises a connecting rod and a bending block, the bending part is provided with a sliding groove for the connecting rod to move up and down, the connecting rod is arranged in the sliding groove, the bending block is arranged in the bending groove, and the connecting rod penetrates through the bending block and the bending part and stretches out of the bending part.

9. The fixture for facilitating bending of battery tabs according to claim 8, wherein: the bending block is a cylinder, and the cylinder is provided with a plane matched with the inclined plane.

10. The fixture for facilitating bending of battery tabs according to claim 1, wherein: the bottom of the bending part is planar and is flush with the bottom of the bottom plate, and the bottom of the bending part is provided with a containing groove corresponding to the bending groove.