CN219696686U

CN219696686U - Battery cell liquid injection positioning tool

Info

Publication number: CN219696686U
Application number: CN202320908388.XU
Authority: CN
Inventors: 余隆宇
Original assignee: Cornex New Energy Co ltd
Current assignee: Cornex New Energy Co ltd
Priority date: 2023-04-21
Filing date: 2023-04-21
Publication date: 2023-09-15
Anticipated expiration: 2033-04-21

Abstract

The utility model provides a battery cell liquid injection positioning tool. This electricity core annotates liquid location frock, including location frame and splint, the interval is provided with a plurality of compartments that are used for the holding electricity core in the location frame, splint set up in the compartment, splint are including the spacing face towards the big face of electricity core, spacing face is the plane, spacing face is in projection on the big face of electricity core can cover completely the big face of electricity core. The clamping plates are arranged in the compartments to limit the large surface of the battery cell, so that the problem that the shell is swelled after the battery cell is filled with the liquid and cannot be taken out of the compartments smoothly is avoided.

Description

Battery cell liquid injection positioning tool

Technical Field

The utility model relates to the technical field of battery preparation, in particular to a battery cell liquid injection positioning tool.

Background

Along with the development of new energy automobiles, the requirements of the market on power batteries are increasingly increased, so that the battery cell is larger and larger in size and smaller in thickness, and the large surface of the battery cell (namely, two side surfaces with larger area in a square battery cell) is inflated in the battery cell liquid injection process due to the increase of the length of the battery cell.

In the current electric core annotates liquid frock for be provided with on the fixed electric core lateral wall and dodge the groove, in order to install, take electric core, but in the in-service use, especially when annotating liquid to the electric core that length exceeded 200mm, it is obvious to find electric core big face bulge, and the casing after the bulge can leave obvious deformation trace dodging the juncture of groove and fixed lateral wall, and electric core casing is dodged the groove department and is blocked, and operating personnel can't be smooth take out electric core from the frock to there is the indentation outside the electric core casing, leads to electric core outward appearance disqualification.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides a battery cell liquid injection positioning tool, wherein a clamping plate is arranged in a compartment to limit the large surface of a battery cell, so that the situation that a shell bulges after the battery cell liquid injection and cannot be taken out from the compartment smoothly is avoided.

The utility model provides a battery cell liquid injection positioning tool which comprises a positioning outer frame and clamping plates, wherein a plurality of compartments for accommodating battery cells are arranged in the positioning outer frame at intervals, the clamping plates are arranged in the compartments, each clamping plate comprises a limiting surface facing a large battery cell surface, the limiting surfaces are flat surfaces, and projections of the limiting surfaces on the large battery cell surface can completely cover the large battery cell surface.

The limiting surface of the clamping plate can completely cover the large surface of the battery cell, when the battery cell is filled with liquid and the shell bulges, the clamping plate can separate the large surface of the battery cell from the side wall of the compartment, so that the side wall of the compartment is prevented from forming an indentation on the hair surface of the battery cell, the battery cell is conveniently taken out from the compartment, and the quality of the outer tube of the battery cell shell is guaranteed.

The utility model has the preferable technical scheme that: the spacing surface is arranged at intervals with the large surface of the battery cell.

In order to avoid the cell to annotate the liquid back casing and take place the bulge, lead to interference fit between cell and the splint, be inconvenient for the cell to take out from the compartment.

The utility model has the preferable technical scheme that: the spacing distance between the limiting surface and the large surface of the battery cell is 0.4mm to 0.6mm.

The distance between the limiting surface and the large surface of the battery cell ensures that the clamping plate plays a certain limiting role on the battery cell before liquid injection, and the battery cell cannot shake greatly in the compartment; after the liquid is injected, the electric core can not be in interference fit with the clamping plate, so that the electric core after the liquid is injected can not be smoothly taken out from the compartment, and friction between the electric core transmitting surface and the clamping plate limiting surface is avoided.

The utility model has the preferable technical scheme that: the two clamping plates are arranged in the compartment, the battery cell is arranged between the two clamping plates, and the limiting surfaces of the two clamping plates are arranged oppositely.

The general square battery cell has two big faces of battery cell, sets up two splint in the compartment, and the spacing face of two splint sets up relatively, makes two spacing faces retrain two big faces of battery cell respectively. Meanwhile, the clamping plates with different thicknesses can be replaced to position the battery cells with different thicknesses so as to adapt to the positioning of the battery cells with different thickness sizes.

The utility model has the preferable technical scheme that: the compartment is provided with a connected top opening and side opening.

The top opening is arranged so as to be convenient for placing the battery cell in the compartment, the side opening is arranged so as to be convenient for the jacking mechanism to jack the battery cell after liquid injection from the side opening, and the battery cell is taken out from the compartment.

The utility model has the preferable technical scheme that: still including the activity set up in the compartment the liftout plate, the liftout plate including setting up in horizontal guide face and the inclined plane at top, the electric core set up in on the horizontal guide face, horizontal guide face relative the inclined plane is close to the compartment middle part, horizontal guide face with the inclined plane links to each other, just horizontal guide face with there is the contained angle between the inclined plane.

When the ejector plate moves towards the middle of the compartment, the contact surface of the battery cell and the ejector plate can be transferred along the horizontal guide surface to the inclined surface, so that the battery cell is inclined, and then the battery cell part protrudes out of the compartment, so that an operator can hold the battery cell conveniently, and the battery cell is taken out of the compartment.

The utility model has the preferable technical scheme that: the included angle is an obtuse angle.

The obtuse angle can be convenient for the electric core to move along the direction of the inclined plane of the horizontal guide surface, and the electric core is not easy to be blocked in the inclined process.

The utility model has the preferable technical scheme that: the push plate is arranged at the opening of the side face and is in butt joint with the ejection plate.

Can push the ejector plate to move by pushing the push plate

The utility model has the preferable technical scheme that: the device also comprises an ejection mechanism for driving the push plate to move towards the compartment, and the push plate is connected with the ejection mechanism.

The utility model has the preferable technical scheme that: the length of the push plate is larger than the sum of the widths of all the compartments, and the push plate is transversely arranged outside the positioning outer frame.

The push plate is pushed by the ejection mechanism, so that the battery cells in the compartments can be inclined at the same time, and the battery cells can be conveniently and simultaneously taken out from the compartments respectively

The cell liquid injection positioning tool has the following beneficial effects:

1. the clamping plate with the limiting surface is arranged in the compartment, so that the limiting surface can completely cover the large surface of the battery cell, swelling of the battery cell after liquid injection is avoided, and the side wall of the compartment leaves an indentation on the battery cell shell;

2. the battery cores with different thicknesses can be positioned by replacing clamping plates with different thicknesses so as to adapt to the liquid injection positioning of the battery cores with different thickness sizes;

3. the spacing distance between the limiting surface of the clamping plate and the large surface of the battery cell is 0.4mm to 0.6mm, so that the clamping plate plays a certain limiting role on the battery cell before liquid injection, and the battery cell is prevented from shaking in a compartment greatly; after the liquid is injected, the clamping plate limiting surface is in clearance fit with the large surface of the battery cell, the battery cell can be taken out of the compartment smoothly, and friction between the large surface of the battery cell and the clamping plate limiting surface is avoided, so that the quality of the battery cell shell is prevented from being influenced;

4. the ejector plate is arranged in the push plate, and the battery cell is inclined in the compartment through the horizontal guide plate and the inclined plane of the ejector plate, so that the battery cell can be conveniently taken out of the compartment after liquid injection.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model. In the drawings, like reference numerals are used to identify like elements. The drawings, which are included in the description, illustrate some, but not all embodiments of the utility model. Other figures can be derived from these figures by one of ordinary skill in the art without undue effort.

Fig. 1 is a schematic diagram of the cooperation of the embodiment of the present utility model.

Fig. 2 is a cross-sectional view of fig. 1 in an embodiment of the utility model.

Fig. 3 is a schematic structural diagram of a positioning frame according to an embodiment of the utility model.

Fig. 4 is a side view of the positioning frame according to the embodiment of the present utility model.

In the figure: 10. positioning the outer frame; 101. a compartment; 102. a top opening; 103. a side opening; 20. a clamping plate; 21. a limiting surface; 31. an ejector plate; 311. an inclined plane; 312. a horizontal guide surface; 32. a rear limiting plate; 40. a push plate; 50. an ejection mechanism; 60. a battery cell; 61. the large surface of the battery cell.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be arbitrarily combined with each other.

Please refer to fig. 1. The utility model provides a battery cell annotates liquid location frock, includes location frame 10, has seted up a plurality of compartments 101 in the location frame 10, is provided with splint 20 in the compartment 101, and battery cell 60 sets up in compartment 101, and splint 20 include the spacing face 21 that sets up towards the big face 61 of battery cell, and spacing face 21 is the plane, and the projection of spacing face 21 on the big face 61 of battery cell can cover the big face 61 of battery cell completely to make behind battery cell 60 annotate liquid, battery cell 60 casing takes place the bulge, the arris of spacing face 21 can not leave the indentation on big face 61 of battery cell.

Taking the square battery cell 60 as an example, in order to make two large battery cell surfaces 61 of the square battery cell 60 limited by the clamping plates 20, the two clamping plates 20 are disposed in the compartment 101, the battery cell 60 is clamped between the two clamping plates 20, and the limiting surfaces 21 of the two clamping plates 20 are disposed opposite to each other, so that the two limiting surfaces 21 respectively correspond to the two large battery cell surfaces 61. The spacing surface 21 on one side and the large surface 61 on one side are arranged at intervals, and the spacing distance between the spacing surface 21 and the large surface 61 on one side is 0.4-0.6 mm. When the battery cell 60 is placed in the compartment 101, the two clamping plates 20 limit the two sides of the battery cell 60, so that the situation that the battery cell 60 shakes in the compartment 101 to influence the liquid injection positioning of the battery cell 60 due to the fact that the movable space of the battery cell 60 in the compartment 101 is too large is avoided; when the battery cell 60 is inflated after the liquid is injected, after the thickness of the shell of the battery cell 60 is increased, the distance between the two clamping plates 20 can enable the battery cell 60 to be taken out of the compartment 101 smoothly, interference fit between the battery cell 60 and the clamping plates 20 is avoided, the battery cell 60 is difficult to take out of the compartment 101, or friction between the large surface 61 of the battery cell and the limiting surface 21 of the clamping plates 20 in the taking out process of the battery cell 60 leaves scratches on the large surface 61 of the battery cell, and the quality of an outer tube of the battery cell 60 is affected.

The positioning frame 10 and the compartment 101 therein are difficult to change in size after molding, and the positioning of the battery cells 60 with different thickness sizes can be adapted by replacing the clamping plates 20 with different thicknesses. When the battery cell 60 with a larger thickness needs to be injected, a thinner clamping plate 20 can be arranged to position the battery cell 60. In this embodiment, the clamping plate 20 has a rectangular parallelepiped shape, so as to control and determine the thickness of the clamping plate 20.

Referring to fig. 3 and 4, a plurality of compartments 101 are disposed at intervals in the positioning frame 10, and can simultaneously accommodate a plurality of electric cells 60, so as to realize simultaneous injection of the electric cells 60. The compartment 101 is a rectangular cavity structure surrounded by four sides, the top of the compartment 101 is provided with a top opening 102, the side wall of the compartment 101 is provided with a side opening 103, and the top opening 102 is connected with the side opening 103 so as to facilitate the placement of the battery cell 60 into the compartment 101 or the removal of the battery cell 60 from the compartment 101.

The bottom of the compartment 101 is provided with an ejector plate 31, and the ejector plate 31 is arranged at the side opening 103. The top of the ejector plate 31 is provided with a horizontal guiding surface 312 and a slope 311 connected with the horizontal guiding surface 312, the horizontal guiding surface 312 is closer to the middle of the compartment 101 than the slope 311, and an obtuse included angle exists between the horizontal guiding surface 312 and the slope 311. When the ejector plate 31 moves toward the middle of the compartment 101, the corner end of the battery cell 60 moves from the horizontal guide surface 312 to the inclined surface 311, and the corner end of the battery cell 60 rises, so that the whole battery cell 60 tilts, and the battery cell 60 is changed from a state in which the whole battery cell 60 is positioned in the compartment 101 to a state in which the battery cell 60 is partially exposed out of the compartment 101, as shown in fig. 1 and 2, so that the battery cell 60 can be taken out conveniently.

In order to keep the battery cell 60 stable in the injection process, an L-shaped rear limit plate 32 is further arranged at the bottom of the compartment 101 opposite to the ejector plate 31, as shown in fig. 2. The other corner end of the battery cell 60 is supported by the rear limiting plate 32, two vertical surfaces of the rear limiting plate 32 are respectively attached to the bottom surface of the battery cell 60 and the side surface of the battery cell 60, the vertical surface attached to the bottom surface of the battery cell 60 and the horizontal guide surface 312 are positioned at the same horizontal height, and when the battery cell 60 is placed in the compartment 101, the battery cell 60 is supported by the rear limiting plate 32 and the horizontal guide surface 312 together, so that the battery cell 60 is kept in a horizontal state, and liquid is conveniently injected into the battery cell 60.

A push plate 40 is arranged outside the positioning outer frame 10, and the push plate 40 can push the ejection plate 31 to move into the compartment 101; preferably, the length of the pushing plate 40 is greater than the sum of the widths of all the compartments 101 in the positioning frame 10, so that pushing the pushing plate 40 drives all the ejector plates 31 in the positioning frame 10 to move, and simultaneously ejects a plurality of electric cores 60, thereby reducing the workload.

The push plate 40 is further provided with an ejection mechanism 50 for pushing the push plate 40 to move, in this embodiment, the ejection mechanism 50 is a flat-pressing type quick clamp, and a compression bar of the quick clamp is connected with the push plate 40. The quick clamp is fixed on the table top, the pushing handle of the quick clamp is pushed, and the pushing plate 40 can be pushed to move by controlling the compression bar to translate.

As another embodiment, the ejector mechanism 50 may be a cylinder, where a piston end of the cylinder is connected to the push plate 40, and the extension of the piston end can also drive the push plate 40 to move, so as to push the ejector plate 31 to move, and jack the battery cell 60.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting. Although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The utility model provides a battery cell annotates liquid location frock, its characterized in that, including location frame (10) and splint (20), the interval is provided with a plurality of compartments (101) that are used for holding battery cell (60) in location frame (10), splint (20) set up in compartment (101), splint (20) are including spacing face (21) towards big face (61) of battery cell, spacing face (21) are the plane, spacing face (21) are in projection on big face (61) of battery cell can cover entirely big face (61) of battery cell.

2. The cell liquid injection positioning tool according to claim 1, wherein the limiting surface (21) and the large cell surface (61) are arranged at intervals.

3. The cell liquid injection positioning tool according to claim 2, wherein the spacing distance between the limiting surface (21) and the large cell surface (61) is 0.4mm to 0.6mm.

4. A cell liquid injection positioning tool according to claim 3, wherein two clamping plates (20) are arranged in the compartment (101), the cell (60) is arranged between the two clamping plates (20), and limiting surfaces (21) of the two clamping plates (20) are arranged oppositely.

5. A cell liquid injection positioning fixture according to claim 1, characterized in that the compartment (101) is provided with a connected top opening (102) and side opening (103).

6. The electric core liquid injection positioning tool according to claim 5, further comprising an ejector plate (31) movably arranged in the compartment (101), wherein the ejector plate (31) comprises a horizontal guide surface (312) and an inclined surface (311) arranged at the top, the electric core (60) is arranged on the horizontal guide surface (312), the horizontal guide surface (312) is close to the middle part of the compartment (101) relative to the inclined surface (311), the horizontal guide surface (312) is connected with the inclined surface (311), and an included angle exists between the horizontal guide surface (312) and the inclined surface (311).

7. The cell electrolyte injection positioning tool of claim 6, wherein the included angle is an obtuse angle.

8. The cell liquid injection positioning tool according to claim 6, further comprising a push plate (40) disposed at the side opening (103), wherein the push plate (40) is abutted against the ejector plate (31).

9. The cell electrolyte injection positioning tool according to claim 8, further comprising an ejector mechanism (50) driving the push plate (40) to move toward the compartment (101), wherein the push plate (40) is connected to the ejector mechanism (50).

10. The cell liquid injection positioning tool according to claim 8, wherein the length of the push plate (40) is larger than the sum of the widths of all the compartments (101), and the push plate (40) is transversely arranged outside the positioning outer frame (10).