Automatic liquid injection module for lithium battery processing

Abstract

The utility model relates to the technical field of lithium battery processing, in particular to an automatic liquid injection module for lithium battery processing, which comprises a base, an electric cylinder is fixedly mounted on the base through a support, a flexible pipe is arranged at the bottom of the electric cylinder, and the support is fixedly mounted on the upper end face of the base. A conveying belt is rotatably installed on the support through a roller shaft, a vacuum pump is arranged at the bottom of the support of the electric cylinder, one end of the vacuum pump is connected with an air pipe, the other end of the vacuum pump is connected with a flexible pipe, the flexible pipe is connected with a liquid pipe, and the liquid pipe is communicated with an external electrolyte tank. According to the automatic liquid injection module for lithium battery processing, liquid injection can still be continued when the flexible pipe is not completely aligned with the liquid injection hole, and the situation that liquid injection fails or electrolyte drops when the flexible pipe is not aligned with the liquid injection hole is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery processing, in particular to an automatic liquid injection module for lithium battery processing. Background Art

[0002] There are often many problems in the traditional lithium battery injection production, among which the small injection hole of the battery box is the key problem. For this reason, only manual injection can be adopted during injection, which is not only inefficient but also cannot guarantee safety. The application of automatic injection machines can help to improve the above defects. For example, a lithium battery injection device with a Chinese patent number (CN113937432A) clamps the lithium battery with a lithium battery clamp, and then uses an injector to inject electrolyte into the injection hole on the lithium battery. However, the battery box injection hole is small. It is difficult to avoid the situation where the injection hole is not aligned with the lithium battery clamp and then the electrolyte is injected vertically downward using an injector. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes an automatic liquid injection module for lithium battery processing.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An automatic liquid injection module for lithium battery processing is designed, comprising a base, an electric cylinder is fixedly installed on the base through a bracket, a flexible tube is arranged at the bottom of the electric cylinder, a bracket is fixedly installed on the upper end surface of the base, a conveyor belt is rotatably installed on the bracket through a roller shaft, a vacuum pump is arranged at the bottom of the bracket of the electric cylinder, one end of the vacuum pump is connected to an air pipe, the other end of the vacuum pump is connected to a flexible tube, the flexible tube is connected to a liquid pipe, the liquid pipe is communicated with an external electrolyte tank, and a block is installed on the upper end surface of the base.

[0006] Preferably, the stopper is abutted against a clamping bracket, a lithium battery pack is clamped in the middle of the clamping bracket, a mounting block is provided on the bracket, a telescopic rod is installed on the mounting block, and the telescopic rod is connected to one side of the clamping bracket.

[0007] Preferably, a liquid injection hole is provided at the top of the clamping bracket, and a guide groove is provided on the upper end surface of the liquid injection hole. The guide groove is in a bell-mouth shape, and the outer wall of the guide groove abuts against the bottom opening of the flexible tube.

[0008] Preferably, a plurality of elastic rods are axially arranged on the outer wall of the flexible tube, and elastic washers are bonded to the bottoms of the elastic rods.

[0009] Preferably, a spherical slider is provided at the bottom of the flexible tube, a liquid injection hole is provided on the outer wall of the spherical slider, and an elastic gasket is sleeved on the outside of the spherical slider.

[0010] Preferably, a pair of wedge-shaped guide blocks are fixedly provided on the upper end surface of the bracket, and the guide blocks are located above the conveyor belt.

[0011] Preferably, a cross bar is vertically arranged at the bottom of the mounting block, and a slip ring is rotatably arranged on the outer wall of the cross bar, and the slip ring is in rolling contact with the bottom of the conveyor belt.

[0012] The utility model proposes an automatic liquid injection module for lithium battery processing, which has the following beneficial effects: by setting a clamping bracket, the clamping bracket is used to clamp the lithium battery pack to be injected, and when it is transmitted to the bottom of the flexible tube, the clamping bracket is pushed by the telescopic rod to clamp the lithium battery pack, and the flexible tube is driven by the electric cylinder to move down and abut the injection hole of the lithium battery pack, and the vacuum pump draws out the air in the lithium battery pack, and then the electrolyte is injected into the lithium battery pack through the liquid pipe; when the flexible tube moves down and is not aligned with the injection hole, the flexible tube slides and contacts with the outer wall of the guide groove when moving down until the elastic gasket abuts against the injection hole, and the elastic rod provides elastic force to restore the vertical shape of the flexible tube, so that the flexible tube can continue to be injected when it is not fully aligned with the injection hole, thereby avoiding the situation that the injection hole is not aligned with the injection hole and the electrolyte drips. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view of an automatic liquid injection module for lithium battery processing proposed by the utility model;

[0014] Figure 2 This is a top view of an automatic liquid injection module for lithium battery processing proposed by the utility model;

[0015] Figure 3 This is an isometric view of an automatic liquid injection module for lithium battery processing proposed by the utility model;

[0016] Figure 4 This is an enlarged view of the structure of part A of an automatic liquid injection module for lithium battery processing proposed by the utility model;

[0017] Figure 5 This is a schematic diagram of the structure of a clamping bracket of an automatic liquid injection module for lithium battery processing proposed by the utility model.

[0018] In the figure: 1 base, 2 vacuum pump, 3 electric cylinder, 4 air pipe, 5 liquid pipe, 6 bracket, 7 conveyor belt, 8 guide block, 9 mounting block, 10 telescopic rod, 11 stopper, 12 clamping bracket, 13 guide groove, 14 elastic washer, 15 flexible tube, 16 elastic rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-5 An automatic liquid injection module for lithium battery processing includes a base 1, an electric cylinder 3 is fixedly installed on the base 1 through a bracket, a flexible tube 15 is arranged at the bottom of the electric cylinder 3, a bracket 6 is fixedly installed on the upper end surface of the base 1, a conveyor belt 7 is rotatably installed on the bracket 6 through a roller shaft, a vacuum pump 2 is arranged at the bottom of the bracket of the electric cylinder 3, one end of the vacuum pump 2 is connected to an air pipe 4, the other end of the vacuum pump 2 is connected to the flexible tube 15, the flexible tube 15 is connected to a liquid pipe 5, the liquid pipe 5 is connected to an external electrolyte tank, and a block 11 is installed on the upper end surface of the base 1.

[0021] The stopper 11 is abutted against a clamping bracket 12 , the middle part of which clamps a lithium battery pack. A mounting block 9 is provided on the bracket 6 , a telescopic rod 10 is mounted on the mounting block 9 , and the telescopic rod 10 is connected to one side of the clamping bracket 12 .

[0022] A liquid injection hole is provided at the top of the clamping bracket 12 , and a guide groove 13 is provided on the upper end surface of the liquid injection hole. The guide groove 13 is in a bell-mouth shape, and the outer wall of the guide groove 13 abuts against the bottom opening of the flexible tube 15 .

[0023] A plurality of elastic rods 16 are axially arranged on the outer wall of the flexible tube 15, and an elastic gasket 14 is bonded to the bottom of the elastic rod 16. A spherical slider is arranged at the bottom of the flexible tube 15, and a liquid injection hole is opened on the outer wall of the spherical slider. The elastic gasket 14 is sleeved on the outside of the spherical slider.

[0024] A pair of wedge-shaped guide blocks 8 are fixedly provided on the upper end surface of the bracket 6, and the guide blocks 8 are located above the conveyor belt 7. A cross bar is vertically provided at the bottom of the mounting block 9, and a slip ring is rotatably provided on the outer wall of the cross bar, and the slip ring is in rolling contact with the bottom of the conveyor belt 7.

[0025] The clamping bracket 12 is used to clamp the lithium battery pack to be injected. When it is transferred to the bottom of the flexible tube 15, the clamping bracket 12 is pushed by the telescopic rod 10 to clamp the lithium battery pack. The flexible tube 15 is driven by the electric cylinder to move down and abut the injection hole of the lithium battery pack. The vacuum pump 2 extracts the air in the lithium battery pack, and then the electrolyte is injected into the lithium battery pack by the liquid pipe 5. When the flexible tube 15 moves down and is not aligned with the injection hole, the flexible tube 15 slides and contacts with the outer wall of the guide groove 13 when moving down until the elastic gasket 14 abuts against the injection hole. The elastic rod 16 provides elastic force to restore the flexible tube 15 to a vertical shape, so that the flexible tube 15 can continue to be injected when it is not fully aligned with the injection hole, thereby avoiding the situation where the injection hole is not aligned with the injection hole and the electrolyte drips.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic liquid injection module for lithium battery processing, comprising a base (1), on which an electric cylinder (3) is fixedly mounted via a bracket, characterized in that: A flexible tube (15) is provided at the bottom of the electric cylinder (3); a bracket (6) is fixedly mounted on the upper end surface of the base (1); a conveyor belt (7) is rotatably mounted on the bracket (6) via a roller shaft; a vacuum pump (2) is provided at the bottom of the bracket of the electric cylinder (3); one end of the vacuum pump (2) is connected to an air pipe (4); the other end of the vacuum pump (2) is connected to the flexible tube (15); the flexible tube (15) is connected to a liquid pipe (5); the liquid pipe (5) is connected to an external electrolyte tank; a stopper (11) is installed on the upper end surface of the base (1).

2. The automatic liquid injection module for lithium battery processing according to claim 1, characterized in that: The stopper (11) is in contact with a clamping bracket (12), the middle part of which clamps a lithium battery pack, the bracket (6) is provided with a mounting block (9), a telescopic rod (10) is mounted on the mounting block (9), and the telescopic rod (10) is connected to one side of the clamping bracket (12).

3. The automatic liquid injection module for lithium battery processing according to claim 2, characterized in that: The top of the clamping bracket (12) is provided with a liquid injection hole, and the upper end surface of the liquid injection hole is provided with a guide groove (13), the guide groove (13) is in a bell-mouth shape, and the outer wall of the guide groove (13) abuts against the bottom opening of the flexible tube (15).

4. The automatic liquid injection module for lithium battery processing according to claim 1, characterized in that: A plurality of elastic rods (16) are axially arranged on the outer wall of the flexible tube (15), and an elastic gasket (14) is bonded to the bottom of the elastic rod (16).

5. The automatic liquid injection module for lithium battery processing according to claim 1, characterized in that: A spherical slider is arranged at the bottom of the flexible tube (15), a liquid injection hole is arranged on the outer wall of the spherical slider, and an elastic gasket (14) is sleeved on the outside of the spherical slider.

6. The automatic liquid injection module for lithium battery processing according to claim 1, characterized in that: A pair of wedge-shaped guide blocks (8) are fixedly arranged on the upper end surface of the bracket (6), and the guide blocks (8) are located above the conveyor belt (7).

7. The automatic liquid injection module for lithium battery processing according to claim 2, characterized in that: A cross bar is vertically arranged at the bottom of the installation block (9), and a slip ring is rotatably arranged on the outer wall of the cross bar, and the slip ring is in rolling contact with the bottom of the conveyor belt (7).

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