CN219106238U

CN219106238U - Battery cell formation clamping device

Info

Publication number: CN219106238U
Application number: CN202320004225.9U
Authority: CN
Inventors: 张晓宇; 刘念; 刘汉祥; 苑丁丁
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2023-01-03
Filing date: 2023-01-03
Publication date: 2023-05-30
Anticipated expiration: 2033-01-03

Abstract

The utility model relates to the technical field of battery cell formation, in particular to a battery cell formation clamping device. The cell formation clamping device comprises a fixing mechanism, a force application mechanism and a laser range finder. The fixing mechanism is provided with accommodation space, accommodation space is used for placing the battery cell that waits to become, and force application mechanism is configured to wait to become the battery cell and exert pressure, and laser range finder sets up in accommodation space top, and laser range finder is used for detecting the notes liquid hole of location wait to become the battery cell. The battery cell to be formed is placed through the accommodating space provided with the fixing mechanism, and is clamped through the force application mechanism, so that the battery cell formation is facilitated. The liquid injection hole of the battery cell to be formed is detected and positioned through the laser range finder, so that the corrosion of the liquid injection hole to the battery cell forming device caused by liquid injection is avoided, and the liquid injection hole is aligned by laser induction during negative pressure forming, so that dislocation caused by battery cell replacement and battery cell expansion is avoided.

Description

Battery cell formation clamping device

Technical Field

The utility model relates to the technical field of battery cell formation, in particular to a battery cell formation clamping device.

Background

In the production of lithium ion batteries, cell formation is an important process for fully impregnating the electrode sheet and activating the negative electrode material. In order to ensure complete formation of the battery cells, the electrode plate interfaces are good after formation, and battery manufacturers often adopt band clamp formation. In the process of producing the battery cell, the formation process technology has higher time and manufacturing cost, and the process and technology of different manufacturers have certain difference. However, to meet the needs of multiple application scenarios of the terminal, battery manufacturers may develop multiple types of battery cells at the same time, and in the actual manufacturing process, a common formation device is usually faced with multiple battery cell replacement; meanwhile, when the battery cell expands after liquid injection, the battery cell is easily scratched by equipment to cause appearance damage; and the common square aluminum shell battery formation equipment has no clamp formation pressing capability.

Therefore, a clamping device for the battery cell is needed to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide a battery cell formation clamping device which can be flexibly compatible with battery cells of different specifications and can clamp the battery cells of different specifications.

To achieve the purpose, the utility model adopts the following scheme:

the battery cell formation clamping device comprises a fixing mechanism, a force application mechanism and a laser range finder, wherein the fixing mechanism is provided with an accommodating space, the accommodating space is used for accommodating a battery cell to be formed, the force application mechanism is configured to apply pressure to the battery cell to be formed, the laser range finder is arranged above the accommodating space, and the laser range finder is used for detecting and positioning a liquid injection hole of the battery cell to be formed.

Illustratively, the fixing mechanism includes a fixed plate assembly and a movable plate assembly detachably connected to each other, the fixed plate assembly and the movable plate assembly forming the accommodation space.

Illustratively, the mounting plate assembly includes:

a first fixing plate disposed along the X direction;

and the second fixing plate is arranged along the Y direction, and one end of the second fixing plate is connected with the first fixing plate.

Illustratively, the fly leaf assembly comprises:

one end of the first movable plate is detachably connected with the first fixed plate;

the second movable plate, one end of this second movable plate is connected with this second fixed plate is removable, and the other end of this second movable plate is connected with this first movable plate is removable, and this accommodation space is enclosed to this first fixed plate, this second fixed plate, this first movable plate and this second movable plate.

Illustratively, the second fixing plate is provided in plurality, and the plurality of second fixing plates are spaced apart along the X direction.

Illustratively, the first movable plate is provided in plurality, and the plurality of first movable plates are spaced apart along the X direction.

Illustratively, the second movable plate is provided in plurality, and the plurality of second movable plates are spaced apart along the Y direction.

Illustratively, a pressure sensor is disposed on an abutting surface of the second movable plate and the to-be-formed battery cell.

The connection modes between the first fixed plate and the first movable plate, between the second fixed plate and the second movable plate and between the first movable plate and the second movable plate are clamping connection.

The force application mechanism is illustratively a cylinder.

The beneficial effects of the utility model are as follows:

in the battery cell formation clamping device provided by the utility model, the battery cell to be formed is placed by arranging the accommodating space of the fixing mechanism, and the battery cell to be formed is clamped by the force application mechanism, so that the battery cell formation is facilitated. The liquid injection hole of the battery cell to be formed is detected and positioned through the laser range finder, so that the corrosion of the liquid injection hole to the battery cell forming device caused by liquid injection is avoided, and the liquid injection hole is aligned by laser induction during negative pressure forming, so that dislocation caused by battery cell replacement and battery cell expansion is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a clamping device for forming a battery cell according to the present utility model in a top view;

fig. 2 is a schematic diagram of a part of a structure of a clamping device for forming a battery cell according to the present utility model;

fig. 3 is a schematic structural diagram of the die-forming clamping device according to the present utility model in another view.

In the figure:

100. a first fixing plate; 200. a second fixing plate; 300. a first movable plate; 400. a second movable plate; 500. forming an electric core; 510. a liquid injection hole; 600. a laser range finder.

Detailed Description

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the drawings related to the present utility model are shown.

In the present utility model, directional terms, such as "upper", "lower", "left", "right", "inner" and "outer", are used for convenience of understanding and are not to be construed as limiting the scope of the present utility model unless otherwise specified.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can 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 present utility model will be understood in specific cases by those of ordinary skill in the art.

The present embodiment provides a clamping device for forming a battery cell, as shown in fig. 1-3, the clamping device for forming a battery cell includes a fixing mechanism, a force applying mechanism and a laser range finder 600. The fixing mechanism is provided with an accommodating space for placing the battery cell 500 to be formed, the force application mechanism is configured to apply pressure to the battery cell 500 to be formed, the laser range finder 600 is arranged above the accommodating space, and the laser range finder 600 is used for detecting and positioning the liquid injection hole 510 of the battery cell 500 to be formed. In the battery cell formation clamping device in the embodiment, the battery cell 500 to be formed is placed by arranging the accommodating space of the fixing mechanism, and the battery cell 500 to be formed is clamped by the force application mechanism, so that the battery cell formation is facilitated. The laser range finder 600 is used for detecting and positioning the liquid injection hole 510 of the cell 500 to be formed, so that the liquid injection hole 510 is prevented from corroding a cell forming device by liquid injection, and the liquid injection hole 510 is aligned by laser induction during negative pressure formation, so that dislocation caused by cell replacement and cell expansion is avoided.

Further, the fixing mechanism in this embodiment includes a fixing plate assembly and a movable plate assembly, the fixing plate assembly and the movable plate assembly are detachably connected, and the fixing plate assembly and the movable plate assembly form an accommodating space.

Specifically, the fixing plate assembly in the present embodiment includes a first fixing plate 100 and a second fixing plate 200, the first fixing plate 100 is placed in the X direction, the second fixing plate 200 is placed in the Y direction, and one end of the second fixing plate 200 is connected to the first fixing plate 100.

Further, the movable plate assembly in this embodiment includes a first movable plate 300 and a second movable plate 400, wherein one end of the first movable plate 300 is detachably connected to the first fixed plate 100, one end of the second movable plate 400 is detachably connected to the second fixed plate 200, the other end of the second movable plate 400 is detachably connected to the first movable plate 300, and the first fixed plate 100, the second fixed plate 200, the first movable plate 300 and the second movable plate 400 enclose an accommodating space.

Through setting up accommodation space that first fixed plate 100, second fixed plate 200, first fly leaf 300 and second fly leaf 400 enclose and place to wait to become electric core 500, can realize the formation of compatible different width electric cores through adjusting the relative position between second fixed plate 200 and the first fly leaf 300, can realize the formation of compatible different thickness electric cores through adjusting the relative position between first fixed plate 100 and second fly leaf 400 and a plurality of second fly leaf 400 to promote the compatible flexibility of electric core formation clamping device.

Further, the second fixing plates 200 in the present embodiment are provided in plurality, and the plurality of second fixing plates 200 are spaced apart in the X direction. The first movable plate 300 is provided in plurality, and the plurality of first movable plates 300 are spaced apart in the X direction. The second movable plate 400 is provided in plurality, and the plurality of second movable plates 400 are spaced apart in the Y direction.

Preferably, one end of the second fixing plate 200 in the present embodiment is vertically connected to the first fixing plate 100, each of the first movable plates 300 is disposed parallel to the second fixing plate 200, and each of the second movable plates 400 is disposed parallel to the first fixing plate 100. Through such setting, can make the electric core become clamping device's overall arrangement reasonable, the assembly degree of difficulty reduces, is favorable to the reorganization of each spare part.

Further, in this embodiment, a pressure sensor is disposed on the contact surface between the second movable plate 400 and the to-be-formed cell 500. By arranging the pressure sensor, the stress condition of the large-surface center of the battery cell 500 to be formed can be detected, so that the degree of force application can be controlled, and the battery cells with different force application requirements can be formed.

Further, in the present embodiment, the connection modes between the first fixed plate 100 and the first movable plate 300, between the second fixed plate 200 and the second movable plate 400, and between the first movable plate 300 and the second movable plate 400 are all clamping connection. The connection and the disassembly between the first fixed plate 100 and the first movable plate 300 can be realized rapidly through the clamping, and meanwhile, the relative positions between the first movable plate 300 and the second fixed plate 200 can be adjusted rapidly, so that the clamping requirements on the battery cores with different widths can be met. The connection and the disassembly between the second fixed plate 200 and the second movable plate 400 can be realized rapidly through the clamping connection, and meanwhile, the relative positions between the second movable plate 400 and the first fixed plate 100 can be adjusted rapidly, so that the clamping requirements on the battery cores with different thicknesses can be met. The connection and the disassembly between the first movable plate 300 and the second movable plate 400 can be realized rapidly through the clamping connection, and meanwhile, the relative positions between the second movable plate 400 and the first fixed plate 100 can be adjusted rapidly, so that the clamping requirements on the battery cores with different thicknesses can be met.

Further, the force application mechanism in this embodiment is a cylinder. The response speed of the air cylinder is high, the force application degree can be adjusted in time, and the formation of the battery cell is facilitated.

The first fixing plate 100, the second fixing plate 200, the first movable plate 300 and the second movable plate 400 in this embodiment are all steel plates, so that the clamping rigidity of the to-be-formed battery cell 500 can be ensured, and the battery cell is not easy to deform due to expansion.

It is to be understood that the above-described embodiments of the present utility model are provided by way of illustration only and not limitation of the embodiments thereof. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. The battery cell formation clamping device is characterized by comprising a fixing mechanism, a force application mechanism and a laser range finder (600), wherein the fixing mechanism is provided with an accommodating space, the accommodating space is used for accommodating a battery cell (500) to be formed, the force application mechanism is configured to apply pressure to the battery cell (500) to be formed, the laser range finder (600) is arranged above the accommodating space, and the laser range finder (600) is used for detecting and positioning a liquid injection hole (510) of the battery cell (500) to be formed.

2. The cell formation clamping device according to claim 1, wherein the fixing mechanism includes a fixing plate assembly and a movable plate assembly, the fixing plate assembly and the movable plate assembly are detachably connected, and the fixing plate assembly and the movable plate assembly form the accommodation space.

3. The cell formation clamping device according to claim 2, wherein the fixing plate assembly comprises:

a first fixing plate (100) placed along the X direction;

and a second fixing plate (200), wherein the second fixing plate (200) is placed along the Y direction, and one end of the second fixing plate (200) is connected with the first fixing plate (100).

4. The cell formation clamping device according to claim 3, wherein the movable plate assembly comprises:

a first movable plate (300), wherein one end of the first movable plate (300) is detachably connected with the first fixed plate (100);

the second fly leaf (400), the one end of second fly leaf (400) with second fixed plate (200) detachable connection, the other end of second fly leaf (400) with first fly leaf (300) detachable connection, first fixed plate (100) second fixed plate (200), first fly leaf (300) with second fly leaf (400) enclose into accommodation space.

5. A die forming and clamping device according to claim 3, wherein a plurality of second fixing plates (200) are provided, and a plurality of the second fixing plates (200) are spaced apart along the X direction.

6. The cell formation clamping device according to claim 4, wherein a plurality of the first movable plates (300) are provided, and the plurality of the first movable plates (300) are spaced apart along the X direction.

7. The cell formation clamping device according to claim 4, wherein a plurality of the second movable plates (400) are provided, and the plurality of the second movable plates (400) are spaced apart along the Y direction.

8. The cell formation clamping device according to claim 4, wherein a pressure sensor is provided on an abutting surface of the second movable plate (400) and the cell (500) to be formed.

9. The device according to claim 4, wherein the connection modes between the first fixed plate (100) and the first movable plate (300), between the second fixed plate (200) and the second movable plate (400), and between the first movable plate (300) and the second movable plate (400) are all clamping connection modes.

10. The cell formation clamping device according to any one of claims 1 to 9, wherein the urging mechanism is a cylinder.