CN217933929U

CN217933929U - Tab folding mechanism for battery

Info

Publication number: CN217933929U
Application number: CN202221665798.8U
Authority: CN
Inventors: 韦志坤; 张全抗; 卢兴院; 王传宝
Original assignee: Dongguan Liwinon Energy Technology Co ltd
Current assignee: Dongguan Liwinon Energy Technology Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-11-29
Anticipated expiration: 2032-06-30

Abstract

The utility model belongs to the technical field of battery production and manufacturing, in particular to a battery tab folding mechanism which comprises a fixed seat and a pressing component, wherein the fixed seat is provided with a containing groove for placing a battery; the pressing component is arranged on the fixed seat; wherein, compress tightly the subassembly and include heating member and compress tightly the piece, compress tightly a one end and be connected with heating member, compress tightly the piece and be used for compressing tightly utmost point ear so that utmost point ear bending type. Through placing the battery in the storage tank, then utilize to compress tightly the subassembly and compress tightly the utmost point ear that is located battery one side and glue, push down the in-process compressing tightly the subassembly for utmost point ear is buckled and is stereotyped, the utility model discloses a mode of pressurization heating is buckled for utmost point ear, helps controlling the height of utmost point ear and the height that utmost point ear was glued, avoids utmost point ear buckle the position too high or cross lowly, simultaneously, can also prevent to buckle the phenomenon that back utmost point ear glue takes place the bounce-back.

Description

Battery tab folding mechanism

Technical Field

The utility model belongs to the technical field of the battery manufacture, concretely relates to utmost point ear mechanism is rolled over to battery.

Background

The lithium ion battery has the characteristics of small self-discharge, high energy density, no memory effect, environmental protection and the like, so that the lithium ion battery gradually becomes one of the most important power supply devices at present and is widely applied to various electronic equipment and vehicles. With the gradual increase of portable devices, the size requirement on the lithium ion battery is smaller and smaller, so that a button type lithium ion battery is derived, wherein the button type lithium ion battery refers to a small-size lithium ion battery which is round or similar to a round in shape and similar to a button, and can be mainly divided into a steel shell button battery and a soft package button battery.

In the prior art, the cell tabs (conductive terminals) of the button cell generally protrude outwards, and the tabs need to be folded to the side edges when being manufactured into a finished battery product, namely, hard tabs need to be bent inside the cell. However, the positive electrode tab is usually made of aluminum, so that the positive electrode tab is soft, the tab glue is easy to rebound after being bent, and the button cell is prone to packaging failure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: aiming at the defects in the prior art, a battery tab folding mechanism is provided to solve the technical problems existing in the technical background.

In order to realize the purpose, the utility model adopts the following technical scheme: a battery tab folding mechanism comprises a fixed seat and a pressing assembly, wherein the fixed seat is provided with an accommodating groove for accommodating a battery; the pressing assembly is arranged on the fixed seat; the compressing assembly comprises a heating element and a compressing element, one end of the compressing element is connected with the heating element, and the compressing element is used for compressing the tab so that the tab is bent and shaped.

Further, the fixing base includes base and dead lever, dead lever fixed mounting be in one side of fixing base, just the dead lever with the base is 90 settings.

Further, compress tightly the subassembly and still include driving cylinder and heat insulating part, driving cylinder installs dead lever one side, heat insulating part with driving cylinder's output fixed connection, the heating member sets up heat insulating part with compress tightly between the piece.

Further, the pressing piece is a folding knife.

Further, one end, far away from the heating member, of the pressing member is provided with a chamfer angle, and the size of the chamfer angle is 1-2 degrees.

Furthermore, a first baffle and a second baffle are arranged on the base, and a pole lug position is formed between the first baffle and the second baffle and used for fixing a battery pole lug.

Further, a heating tube is arranged inside the heating element.

Further, the depth of the accommodating groove is 2.2-3.3 mm.

The beneficial effects of the utility model reside in that: a battery tab folding mechanism comprises a fixed seat and a pressing assembly, wherein the fixed seat is provided with an accommodating groove for accommodating a battery; the pressing assembly is arranged on the fixed seat; the compressing assembly comprises a heating element and a compressing element, one end of the compressing element is connected with the heating element, and the compressing element is used for compressing the tab so that the tab is bent and shaped. Through placing the battery in the storage tank, then utilize to compress tightly the subassembly and compress tightly the utmost point ear that is located battery one side and glue, push down the in-process compressing tightly the subassembly for utmost point ear is buckled and is stereotyped, the utility model discloses a mode of pressurization heating is buckled for utmost point ear, helps controlling the height of utmost point ear and the height that utmost point ear was glued, avoids utmost point ear buckle the position too high or cross lowly, simultaneously, can also prevent to buckle the phenomenon that back utmost point ear glue takes place the bounce-back.

Drawings

Features, advantages and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of a tab folding mechanism for a battery according to an embodiment of the present invention;

fig. 2 is a second schematic structural view of a battery tab folding mechanism according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a battery cell tab after being bent.

Wherein the reference numerals are as follows:

1. a fixed seat; 11. a base; 12. fixing the rod; 2. a compression assembly; 21. a heating element; 211. a heat-generating tube; 22. a pressing member; 23. a driving cylinder; 24. a thermal insulation member; 3. a first baffle plate; 4. a second baffle; 5. a polar ear position; 6. an electric core; 7. a tab; h1, depth of the accommodating groove.

Detailed Description

As some terms are used throughout the description and claims to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.

In the description of the application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element 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.

In the description of the present application, unless explicitly stated or limited otherwise, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more; the terms "connected," "secured," and the like are to be construed broadly and unless otherwise stated or indicated, and for example, "connected" may be a fixed connection, a removable connection, an integral connection, or an electrical connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The present invention will be described in further detail with reference to fig. 1 to 3, but the present invention is not limited thereto.

Referring to fig. 1 to 2, the present embodiment provides a battery tab folding mechanism, which includes a fixing seat 1 and a pressing assembly 2, wherein the fixing seat 1 is provided with an accommodating groove for accommodating a battery; the compressing component 2 is arranged on the fixed seat 1; wherein, compress tightly subassembly 2 and include heating member 21 and compressing tightly 22, compressing tightly 22 one end and being connected with heating member 21, compressing tightly 22 and being used for compressing tightly utmost point ear 7 so that utmost point ear 7 is buckled and is stereotyped. Through placing the battery in the storage tank, then utilize to compress tightly subassembly 2 and compress tightly the utmost point ear that is located battery one side and glue, push down the in-process compressing tightly subassembly 2 for utmost point ear 7 is buckled and is stereotyped, the utility model discloses a mode of pressure heating is buckled for utmost point ear 7, helps controlling utmost point ear 7's height and utmost point ear height of gluing, avoids utmost point ear 7 to buckle the position too high or cross low excessively, simultaneously, can also prevent to buckle the phenomenon that back utmost point ear glue takes place to bounce-back.

Referring to fig. 1, the pressing assembly 2 in this embodiment further includes a driving cylinder 23 and a heat insulating member 24, the driving cylinder 23 is installed on one side of the fixing rod 12, the heat insulating member 24 is fixedly connected with an output end of the driving cylinder (23), the heating member 21 is disposed between the heat insulating member 24 and the pressing member 22, and when the pressing member 22 is driven by the driving cylinder 23 to move downward to a predetermined position, the pressing member 22 presses on tab glue of the battery.

Preferably, the fixing base 1 in this embodiment includes a base 11 and a fixing rod 12, the fixing rod 12 is fixedly installed on one side of the fixing base 1, and the fixing rod 12 and the base 11 are disposed at 90 °. This kind of structural design can make and compress tightly the whole terminal surface that moves down along vertical direction of piece 22 and compress tightly on the utmost point ear gum for compress tightly piece 22 and move steadily reliably, prevent to compress tightly 22 fish tail electricity core 6.

Preferably, the pressing assembly 2 further comprises a driving cylinder 23, and the pressing member 22 is driven by the driving cylinder 23 to move downwards to a predetermined position, so that the pressing member 22 presses on the tab glue of the battery.

The piston is arranged in the cylinder, and the piston performs linear reciprocating motion in the cylinder, so that when the air expands in the inner cavity of the cylinder, the heat energy can be converted into mechanical energy, and the gas is compressed by the piston in the cylinder to improve the pressure. If outside heat diffusion to driving actuating cylinder 23, lead to the cylinder whole temperature on the high side, because expend with heat and contract with cold principle, make the inside gaseous emergence inflation of cylinder to lead to the cylinder to break down easily, influence the life of cylinder.

Based on this, in the present embodiment, a heat insulating member 24 is disposed between the heating member 21 and the driving cylinder 23, the driving cylinder 23 is installed on one side of the fixing rod 12, the heat insulating member 24 is fixedly connected with the output end of the driving cylinder (23), the heating member 21 is disposed between the heat insulating member 24 and the pressing member 22, and when the pressing member 22 is driven by the driving cylinder 23 to move downward to a predetermined position, the pressing member 22 presses the tab glue of the battery. In the present embodiment, the driving cylinder 23 and the heating member 21 are connected by the heat insulator 24, so that the heat of the heating member 21 can be prevented from being transferred to the driving cylinder 23 to damage the driving cylinder 23.

Preferably, the compression member 22 is a jack knife. More specifically, the terminal surface that compresses tightly piece 22 is straight face, when compressing tightly piece 22 and move down to preset position, lies in the straight face that compresses tightly 22 one end and the laminating of utmost point ear glue terminal surface, can prevent to compress tightly piece 22 and glue the damage to the utmost point ear on the one hand, can fully compress tightly utmost point ear glue on the one hand, prevents the condition that local perk from appearing in utmost point ear 7 for utmost point ear 7 can be buckled along the crease position.

Preferably, one end of the pressing member 22 away from the heating member 21 is provided with a chamfer, and the size of the chamfer is 1-2 degrees. Due to the structural design, the pressing piece 22 can be prevented from scratching the surface of the tab 7.

Preferably, the base 11 is provided with a first baffle 3 and a second baffle 4, and a tab position 5 is formed between the first baffle 3 and the second baffle 4 for fixing a battery tab 7. More specifically, first baffle 3 and second baffle 4 can be followed vertical direction (90 orientation) and set up, and first baffle 3 and second baffle 4 also can be followed horizontal direction (180 orientations) and set up, and the form is drawn forth to the multi-angle that can compatible utmost point ear 7 to can prevent utmost point ear 7 skew taking place at the in-process of buckling.

Preferably, the heating member 21 is internally provided with a heating pipe 211. Heating member 21 is heated through heating tube 211 for the heat can transmit through heating member 21 and compress tightly 22, and then glue the utmost point ear heat transfer, moves down when compressing tightly 22 and compresses tightly at utmost point ear gluey surface, makes utmost point ear 7 buckle the back, can play the purpose of stereotyping, prevents that utmost point ear glue from rebounding.

Preferably, the depth H1 of the receiving groove is 2.2 to 3.3mm. This kind of structural design can fixed column electricity core 6, moreover, this kind of structural design, can control the height after utmost point ear 7 buckles through controlling the holding groove degree of depth, and then can avoid utmost point ear 7 size overlength or the short excessively of buckling.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should understand that the embodiments as a whole may be combined as appropriate to form other embodiments understood by those skilled in the art.

Variations and modifications to the above-described embodiments may become apparent to those skilled in the art from the disclosure and teachings of the above description. Therefore, the present invention is not limited to the above-mentioned embodiments, and any obvious modifications, replacements or variations made by those skilled in the art on the basis of the present invention belong to the protection scope of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. A battery tab folding mechanism is characterized in that: comprises that

The battery fixing device comprises a fixing seat (1), wherein the fixing seat (1) is provided with a containing groove for containing a battery;

the pressing assembly (2), the pressing assembly (2) is installed on the fixed seat (1);

the pressing assembly (2) comprises a heating element (21) and a pressing element (22), one end of the pressing element (22) is connected with the heating element (21), and the pressing element (22) is used for pressing the tab (7) so that the tab (7) can be bent and shaped.

2. The battery tab folding mechanism according to claim 1, wherein: the fixing seat (1) comprises a base (11) and a fixing rod (12), wherein the fixing rod (12) is fixedly installed on one side of the fixing seat (1), and the fixing rod (12) and the base (11) are arranged in an angle of 90 degrees.

3. The battery tab folding mechanism according to claim 2, wherein: the pressing assembly (2) further comprises a driving air cylinder (23) and a heat insulation piece (24), the driving air cylinder (23) is installed on one side of the fixing rod (12), the heat insulation piece (24) is fixedly connected with the output end of the driving air cylinder (23), and the heating piece (21) is arranged between the heat insulation piece (24) and the pressing piece (22).

4. A battery tab folding mechanism as claimed in claim 3, wherein: the pressing piece (22) is a folding knife.

5. A battery tab folding mechanism as claimed in claim 3, wherein: one end of the pressing piece (22) far away from the heating piece (21) is provided with a chamfer, and the size of the chamfer is 1-2 degrees.

6. The battery tab folding mechanism according to claim 2, wherein: the battery pole lug fixing device is characterized in that a first baffle (3) and a second baffle (4) are arranged on the base (11), and a pole lug position (5) is formed between the first baffle (3) and the second baffle (4) and used for fixing a battery pole lug (7).

7. A battery tab folding mechanism as claimed in claim 3, wherein: the heating member (21) is internally provided with a heating tube (211).

8. The battery tab folding mechanism according to claim 1, characterized in that: the depth of the containing groove is 2.2-3.3 mm.