Lithium ion battery electrolyte filling equipment

Abstract

The utility model discloses lithium ion battery electrolyte filling equipment which comprises an electrolyte injection pump, a hose is arranged at the top of the electrolyte injection pump, and the lithium ion battery electrolyte filling equipment is characterized in that one end of the hose is connected with an auxiliary suite, the hose is movably arranged in the auxiliary suite, two limiting supporting pieces are symmetrically arranged in the auxiliary suite, and the limiting supporting pieces are connected with the hose in a sleeved mode. And two limiting fixing pieces are symmetrically arranged below the two limiting supporting pieces, two rotating auxiliary pieces are symmetrically arranged below the two limiting fixing pieces, and the two rotating auxiliary pieces are rotationally installed at the bottom of an auxiliary sleeve piece. According to the utility model, the inclined plane I and the inclined plane III are arranged, so that the electrolyte remained on the outer side wall of the hose can be scraped, the electrolyte is remained in the auxiliary kit and is subsequently cleaned, the electrolyte cannot be brought out to influence the external environment, equipment or workers, and the cleaning operation on the electrolyte is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolyte filling equipment, in particular to an electrolyte filling equipment for lithium ion batteries. Background Art

[0002] The electrolyte of a lithium battery is a carrier for lithium ion transmission in the lithium battery, generally composed of a lithium salt and an organic solvent. The electrolyte plays a role in conducting lithium ions between the positive and negative electrodes of the lithium battery, and is a guarantee for the lithium ion battery to obtain advantages such as high voltage and high specific energy. The electrolyte is generally made of high-purity organic solvents, electrolyte lithium salts, additives and other raw materials, and is prepared under certain conditions and in a certain proportion.

[0003] During the process of filling the electrolyte in the existing lithium battery, when the liquid injection pipe is removed from the lithium battery cell after the filling is completed, the electrolyte remaining on the inner wall of the bottom end and the surrounding side wall of the liquid injection pipe is likely to drip onto the outside of the lithium battery or the operating table, and the dripping electrolyte is very difficult to clean. Usually, it is cleaned with chemical agents, which not only adds extra unnecessary processes, but also causes a certain degree of corrosive harm and influence to the staff. Relative to the batch production of the production line, it will also affect the working efficiency of electrolyte filling.

[0004] Therefore, the utility model provides an electrolyte filling equipment for lithium ion batteries to solve the above problems. Summary of the Utility Model

[0005] The utility model provides an electrolyte filling equipment for lithium ion batteries. By setting an inclined plane 1 and an inclined plane 3, it is beneficial to scrape the electrolyte remaining on the outer side wall of the hose, so that the electrolyte is retained in the auxiliary kit for subsequent cleaning, and will not be carried out externally, causing influence on the external environment, equipment or staff, reducing the cleaning operation of the electrolyte, and solving the problems raised in the above background art.

[0006] To achieve the above purposes, the utility model provides the following technical solutions:

[0007] An electrolyte filling equipment for lithium ion batteries includes a liquid injection pump. A hose is arranged at the top of the liquid injection pump. One end of the hose is connected with an auxiliary kit. The hose is movably installed in the auxiliary kit. A lithium battery is arranged below the auxiliary kit. A liquid injection port is arranged at the top of the lithium battery. Two limiting support pieces are symmetrically arranged inside the auxiliary kit. Two limiting fixing pieces are symmetrically arranged below the two limiting support pieces. Two rotating auxiliary pieces are symmetrically arranged below the two limiting fixing pieces. The two rotating auxiliary pieces are rotatably installed at the bottom of the auxiliary kit.

[0008] Preferably, one end of the limit support piece is provided with an arc-shaped elastic connector, and one end of the arc-shaped elastic connector is arranged on the inner side wall of the auxiliary kit.

[0009] Preferably, the two limit support pieces are arranged to be inclined in the same direction, and the two limit support pieces are inclined and narrowed downward inside the auxiliary kit.

[0010] Preferably, bevels one are arranged at the front ends of the two limit support pieces, the two bevels one are arranged to be inclined in the same direction, and the two bevels one are inclined and narrowed downward inside the auxiliary kit.

[0011] Preferably, the two limit fixing pieces are arranged to be inclined in the same direction, and the two limit fixing pieces are inclined and narrowed upward inside the auxiliary kit.

[0012] Preferably, bevels two are arranged at the front ends of the two limit fixing pieces, the two bevels two are arranged to be inclined in the same direction, and the two bevels two are inclined and narrowed upward inside the auxiliary kit.

[0013] Preferably, the two rotation assisting pieces are rotatably installed at the bottom of the auxiliary kit through rotating shafts, limiting grooves are formed in the top walls of the two rotation assisting pieces, and the two limiting grooves are respectively engaged with the two bevels two.

[0014] Preferably, the two rotation assisting pieces are arranged horizontally in the same direction, bevels three are arranged at the front ends of the two rotation assisting pieces, the two bevels three are arranged to be inclined in the same direction, and the two bevels three are inclined and narrowed upward inside the auxiliary kit.

[0015] Preferably, storage containers are magnetically adsorbed on the outer side walls at both ends of the auxiliary kit, a circulation groove is formed above the top of one end of the limit fixing piece, and the circulation groove communicates with the inside of the storage container.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. In the lithium-ion battery electrolyte filling device described in the present utility model, by providing the bevel one and the bevel three, when the hose finishes injecting liquid and is pulled out from the auxiliary kit, it is beneficial to scrape the electrolyte remaining on the outer side wall of the hose, so that the electrolyte remains in the auxiliary kit for subsequent cleaning, and will not be taken out to the outside, causing impacts on the external environment, equipment or staff, and reducing the cleaning operation of the electrolyte.

[0018] 2. In the electrolyte filling device for a lithium-ion battery described in the present utility model, by providing a limit fixing piece and a flow-through groove, when residual electrolyte is scraped out from the outer side wall of the hose and the outer side wall of the liquid injection port, the electrolyte can flow along the upper top of the limit fixing piece into the flow-through groove, and then enter the storage container for collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a front view structural schematic diagram of an electrolyte filling device for a lithium-ion battery of the present utility model;

[0020] Figure 2 is a sectional view structural schematic diagram of an auxiliary kit of the present utility model;

[0021] Figure 3 is another sectional view structural schematic diagram of an auxiliary kit of the present utility model;

[0022] Figure 4 is of the present utility model Figure 2 partial enlarged structural schematic diagram at A;

[0023] Figure 5 is of the present utility model Figure 3 partial enlarged structural schematic diagram at B.

[0024] In the figure: 1, liquid injection pump; 2, hose; 3, auxiliary kit; 4, limit support piece; 5, limit fixing piece; 6, rotation auxiliary piece; 7, arc-shaped elastic connector; 8, first inclined surface; 9, second inclined surface; 10, rotating shaft; 11, limit groove; 12, third inclined surface; 13, storage container; 14, flow-through groove; 15, lithium battery; 16, liquid injection port. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Such as Figures 1 to 5As shown in the figure, a lithium-ion battery electrolyte filling device provided by the utility model includes a liquid injection pump 1. A hose 2 is arranged on the top of the liquid injection pump 1. It is characterized in that one end of the hose 2 is connected with an auxiliary kit 3, and the hose 2 is movably installed in the auxiliary kit 3. A lithium battery 15 is arranged below the auxiliary kit 3, and a liquid injection port 16 is arranged on the top of the lithium battery 15. Two limiting support pieces 4 are symmetrically arranged inside the auxiliary kit 3. Two limiting fixing pieces 5 are symmetrically arranged below the two limiting support pieces 4. Two rotating auxiliary pieces 6 are symmetrically arranged below the two limiting fixing pieces 5, and the two rotating auxiliary pieces 6 are rotatably installed at the bottom of the auxiliary kit 3.

[0027] One end of the limiting support piece 4 is provided with an arc-shaped elastic connecting piece 7, and one end of the arc-shaped elastic connecting piece 7 is arranged on the inner side wall of the auxiliary kit 3. Through the elastic action given by the arc-shaped elastic connecting piece 7 to the limiting support piece 4, when one end of the hose 2 is inserted into the auxiliary kit 3, the limiting support piece 4 undergoes self-adaptive elastic compression, and at the same time gives a reverse force to the hose 2 to maintain the stable balance effect of the hose 2.

[0028] The two limiting support pieces 4 are arranged in the same direction and inclined. The two limiting support pieces 4 are inclined and narrowed towards the lower part inside the auxiliary kit 3. The downward inclined and narrowed setting is beneficial to fastening the inserted state of the hose 2 and improving the stability of the hose 2 during electrolyte injection.

[0029] Furthermore, inclined surfaces 1 8 are arranged at the front ends of the two limiting support pieces 4. The two inclined surfaces 1 8 are arranged in the same direction and inclined. The two inclined surfaces 1 8 are inclined and narrowed towards the lower part inside the auxiliary kit 3. The downward inclined and narrowed setting can not only increase the supporting force of the inclined surface 1 8 on the hose 2, but also be beneficial to scraping the electrolyte remaining on the outer side wall of the hose 2 when the hose 2 finishes injecting the liquid and is pulled out of the auxiliary kit 3, so that the electrolyte remains in the auxiliary kit 3 for subsequent cleaning and will not be carried out to the outside, affecting the external environment, equipment or staff, and reducing the cleaning operation of the electrolyte.

[0030] Receiving containers 13 are magnetically attracted and arranged on the outer side walls at both ends of the auxiliary kit 3. A flow-through groove 14 is opened above one end of the limiting fixing piece 5, and the flow-through groove 14 communicates with the inside of the receiving container 13. The receiving container 13 is used to collect the electrolyte remaining inside the auxiliary kit 3, and the flow-through groove 14 is used to guide the remaining electrolyte into the receiving container 13.

[0031] The two limiting and fixing pieces 5 are arranged to incline in the same direction, and the two limiting and fixing pieces 5 incline towards the upper part inside the auxiliary kit 3 and are arranged to narrow. The upward-inclining and narrowing arrangement is beneficial to the clamping fit between the limiting groove 11 and the second inclined surface 9 when the rotating auxiliary piece 6 moves upward in rotation, so that when the residual electrolyte is scraped out from the outer side wall of the hose 2, the electrolyte can flow along the upper top of the limiting and fixing piece 5 into the flow-through groove 14, and then enter the storage container 13 for collection.

[0032] Furthermore, the front ends of the two limiting and fixing pieces 5 are both provided with the second inclined surfaces 9, the two second inclined surfaces 9 are arranged to incline in the same direction, and the two second inclined surfaces 9 incline towards the upper part inside the auxiliary kit 3 and are arranged to narrow. The second inclined surfaces 9 at this time are to increase the contact friction force with the limiting groove 11 to maintain the stability of the limiting groove 11 and ensure that it will not shake.

[0033] The two rotating auxiliary pieces 6 are both rotatably installed at the bottom of the auxiliary kit 3 through the rotating shafts 10, and limiting grooves 11 are opened on the top walls of the two rotating auxiliary pieces 6, and the two limiting grooves 11 are respectively in clamping fit with the two second inclined surfaces 9. During use, when the auxiliary kit 3 is sleeved on the liquid injection port 16 of the lithium battery 15, the two rotating auxiliary pieces 6 will rotate upward to facilitate docking with the hose 2, so as to carry out the liquid injection work.

[0034] Furthermore, the two rotating auxiliary pieces 6 are arranged horizontally in the same direction, the front ends of the two rotating auxiliary pieces 6 are both provided with the third inclined surfaces 12, the two third inclined surfaces 12 are arranged to incline in the same direction, and the two third inclined surfaces 12 incline towards the upper part inside the auxiliary kit 3 and are arranged to narrow. The third inclined surfaces 12 at this time are to increase the contact friction force with the liquid injection port 16 to maintain the stability of the liquid injection port 16 and ensure that it will not shake. At the same time, after the liquid injection is completed, if there is residual electrolyte on the liquid injection port 16, when the auxiliary kit 3 is pulled out from the liquid injection port 16, the third inclined surfaces 12 will scrape the outer side wall of the liquid injection port 16, so that the residual electrolyte can flow along the upper top of the limiting and fixing piece 5 into the flow-through groove 14, and then enter the storage container 13 for collection, and will not be taken out to the outside, causing an impact on the external environment, equipment or staff, and reducing the cleaning operation of the electrolyte.

[0035] In summary, a lithium-ion battery electrolyte filling device provided by the present utility model has a first inclined surface 8 and a third inclined surface 12. When the hose 2 finishes injecting the liquid and is pulled out from the auxiliary kit 3, it is beneficial to scrape the electrolyte remaining on the outer side wall of the hose 2, so that the electrolyte remains in the auxiliary kit 3 for subsequent cleaning and will not be taken out to the outside, affecting the external environment, equipment or staff, and reducing the cleaning operation of the electrolyte. By providing the limit fixing piece 5 and the flow-through groove 14, when the remaining electrolyte is scraped out from the outer side wall of the hose 2 and the outer side wall of the liquid injection port 16, the electrolyte can flow along the upper top of the limit fixing piece 5 into the flow-through groove 14, and then enter the storage container 13 for collection.

[0036] The foregoing description of the specific exemplary embodiments of the present utility model is for the purposes of illustration and exemplification. These descriptions are not intended to limit the present utility model to the precise forms disclosed, and it is obvious that many changes and variations can be made in accordance with the above teachings. Although the embodiments of the present utility model have been shown and described, the specific embodiments are merely interpretations of the present utility model and not limitations thereof. The specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles and practical applications of the present utility model, so that those skilled in the art can, after reading this specification, make modifications, substitutions, variations, and various different selections and changes that do not make creative contributions to the embodiments as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

Claims

1. An electrolyte filling device for a lithium-ion battery, including a liquid injection pump (1), wherein a hose (2) is arranged at the top of the liquid injection pump (1), and is characterized in that, One end of the hose (2) is connected with an auxiliary kit (3). The hose (2) is movably installed in the auxiliary kit (3). A lithium battery (15) is arranged below the auxiliary kit (3). A liquid injection port (16) is arranged at the top of the lithium battery (15). Two limiting support pieces (4) are symmetrically arranged inside the auxiliary kit (3). Two limiting fixing pieces (5) are symmetrically arranged below the two limiting support pieces (4). Two rotating auxiliary pieces (6) are symmetrically arranged below the two limiting fixing pieces (5). The two rotating auxiliary pieces (6) are rotatably installed at the bottom of the auxiliary kit (3).

2. The electrolyte filling device for a lithium-ion battery according to claim 1, characterized in that One end of the limiting support piece (4) is provided with an arc-shaped elastic connecting piece (7). One end of the arc-shaped elastic connecting piece (7) is arranged on the inner side wall of the auxiliary kit (3).

3. The lithium-ion battery electrolyte filling device according to claim 2, wherein The two limiting support pieces (4) are arranged in the same direction and inclined. The two limiting support pieces (4) are inclined and narrowed towards the lower part inside the auxiliary kit (3).

4. A lithium-ion battery electrolyte filling device according to claim 3, wherein, The front ends of the two limiting support pieces (4) are both provided with a first inclined surface (8). The two first inclined surfaces (8) are arranged in the same direction and inclined. The two first inclined surfaces (8) are inclined and narrowed towards the lower part inside the auxiliary kit (3).

5. A lithium-ion battery electrolyte filling device according to claim 1, wherein, The two limiting fixing pieces (5) are arranged in the same direction and inclined. The two limiting fixing pieces (5) are inclined and narrowed towards the upper part inside the auxiliary kit (3).

6. The electrolyte filling device for a lithium-ion battery according to claim 5, characterized in that The front ends of the two limiting fixing pieces (5) are both provided with a second inclined surface (9). The two second inclined surfaces (9) are arranged in the same direction and inclined. The two second inclined surfaces (9) are inclined and narrowed towards the upper part inside the auxiliary kit (3).

7. A lithium-ion battery electrolyte filling device according to claim 6, characterized in that, The two rotating auxiliary pieces (6) are rotatably installed at the bottom of the auxiliary kit (3) through a rotating shaft (10). Limiting grooves (11) are opened on the top walls of the two rotating auxiliary pieces (6). The two limiting grooves (11) are respectively clamped and matched with the two second inclined surfaces (9).

8. A lithium-ion battery electrolyte filling device according to claim 7, characterized in that, The two rotating auxiliary pieces (6) are arranged horizontally in the same direction. The front ends of the two rotating auxiliary pieces (6) are both provided with a third inclined surface (12). The two third inclined surfaces (12) are arranged in the same direction and inclined. The two third inclined surfaces (12) are inclined and narrowed towards the upper part inside the auxiliary kit (3).

9. A lithium-ion battery electrolyte filling device according to claim 8, characterized in that, Receiving containers (13) are magnetically attracted and arranged on the outer side walls at both ends of the auxiliary kit (3). A flow-through groove (14) is opened above the top of one end of the limiting fixing piece (5). The flow-through groove (14) communicates with the inside of the receiving container (13).

Images