Lithium ion aluminum shell battery liquid injection tool

Abstract

The utility model discloses a lithium ion aluminum shell battery liquid injection tool which comprises a bottom plate and side plates, a battery is placed between the side plates, a front baffle is detachably arranged on the upper end face of the bottom plate, and the side end of the front baffle abuts against the bottom of the battery. A liquid containing cup and a supporting table are arranged on the upper side of the battery, and a liquid injection nozzle at the bottom of the liquid containing cup penetrates through the supporting table to be communicated with the battery; first connecting plates are fixedly connected to the two sides of the supporting table, second connecting plates are arranged at the bottoms of the first connecting plates, long-strip-shaped vertical grooves are formed in the second connecting plates, the first connecting plates are matched with the vertical grooves through connecting pieces, and third connecting plates are arranged between the second connecting plates and the side plates. A long-strip-shaped transverse groove is formed in the side plate, and the third connecting plate is matched with the transverse groove through a connecting piece. The utility model aims to provide the liquid injection tool which can adapt to aluminum shell batteries with various sizes, is convenient to inject liquid and prevents electrolyte from leaking out.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery processing, in particular to a liquid injection tooling for lithium-ion aluminum shell batteries. Background Art

[0002] Lithium-ion aluminum shell batteries are widely used in the fields of electronic products, power, energy storage, aerospace, etc. due to their advantages of high energy density, long service life, flame retardancy, smokelessness, non-toxicity, excellent anti-aging performance and strong explosion-proof performance. During the manufacturing process of aluminum shell batteries, the stacked or wound battery electrode groups are welded to the top cover, and then the electrode groups are installed in the aluminum shell. The battery electrode groups are sealed by welding the top cover and the aluminum shell. Later, production processes such as baking, liquid injection, formation and grading are carried out. Since the lithium-ion aluminum shell battery needs to be injected with liquid through a very small liquid injection port reserved on the top cover during liquid injection, the liquid injection takes a long time. Moreover, a set of lithium-ion aluminum shell batteries cannot meet the liquid injection requirements of batteries of multiple specifications.

[0003] The existing solution is to manufacture corresponding special liquid injection toolings for batteries of different size specifications. When producing batteries of different sizes, the corresponding toolings need to be selected for liquid injection, which not only increases the time for changing the tooling, but also requires a relatively large number of manufactured toolings, and there will also be situations such as mixed use of toolings. For batteries of sizes with long-term production and large production quantities, corresponding toolings are made. When producing batteries of other sizes with small production quantities and infrequent production, a syringe is used to inject liquid multiple times from the liquid injection port. This method takes a long time, and workers will be in long-term contact with the electrolyte when injecting liquid with a syringe, which will cause harm to the body. Therefore, there is an urgent need for a liquid injection tooling that can adapt to aluminum shell batteries of multiple sizes, is convenient for liquid injection and can avoid electrolyte leakage. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies in the above-mentioned prior art, and aims to provide a liquid injection tooling that can adapt to aluminum shell batteries of multiple sizes, is convenient for liquid injection and can avoid electrolyte leakage.

[0005] To achieve the above purpose, the utility model is realized by the following technical solutions:

[0006] A liquid injection tooling for lithium-ion aluminum shell batteries includes a bottom plate and side plates. A battery is placed between the side plates. A front baffle is detachably arranged on the upper end surface of the bottom plate, and the side end of the front baffle abuts against the bottom of the battery; a liquid storage cup and a support table are arranged above the battery. The liquid injection nozzle at the bottom of the liquid storage cup passes through the support table and is communicated with the battery; first connecting plates are fixedly connected to both sides of the support table. A second connecting plate is arranged at the bottom of the first connecting plate. A long strip-shaped vertical groove is arranged on the second connecting plate. The first connecting plate is matched with the vertical groove through a connecting piece. A third connecting plate is arranged between the second connecting plate and the side plate; a long strip-shaped horizontal groove is arranged on the side plate. The third connecting plate is matched with the horizontal groove through a connecting piece.

[0007] Furthermore, a rear baffle located in front of the battery is fixedly connected between the side plates.

[0008] Furthermore, mounting holes are evenly arranged on the bottom plate along the advancing direction of the battery, and the front baffle is connected to the mounting holes through fixing members.

[0009] Furthermore, there are two transverse grooves.

[0010] Furthermore, the connecting member is an adjusting nut.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model can adapt to aluminum shell batteries of different sizes. The position adjustment between the first connecting plate and the vertical groove can change the height position of the liquid holding cup, and the position adjustment between the third connecting plate and the transverse groove can change the transverse position of the liquid holding cup, so as to adapt to different sizes. Moreover, the liquid injection nozzle can fit with the liquid injection port of the aluminum shell battery, preventing the electrolyte from leaking from the contact position between the liquid injection nozzle and the liquid injection port during the liquid injection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the front view of the utility model;

[0014] Figure 2 is the side view of the utility model;

[0015] Figure 3 is the top view of the bottom plate in the utility model.

[0016] REFERENCE MARKS:

[0017] 1 - liquid holding cup, 2 - liquid injection nozzle, 3 - rear baffle, 4 - battery, 5 - bottom plate, 6 - front baffle, 7 - support platform, 8 - first connecting plate, 9 - second connecting plate, 10 - third connecting plate, 11 - side plate, 12 - vertical groove, 13 - transverse groove, 14 - connecting member, 15 - mounting hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will describe the utility model in detail with reference to the drawings and in conjunction with embodiments.

[0019] As Figures 1 to 3As shown in the figure, a liquid injection tooling for a lithium-ion aluminum shell battery includes a bottom plate 5 and side plates 11. A battery 4 is placed between the side plates 11. A front baffle 6 is detachably arranged on the upper end surface of the bottom plate 5, and the side end of the front baffle 6 abuts against the bottom of the battery 4; A liquid holding cup 1 and a support platform 7 are arranged above the battery 4. A liquid injection nozzle 2 at the bottom of the liquid holding cup 1 passes through the support platform 7 and is communicated with the battery 4; First connecting plates 8 are fixedly connected to both sides of the support platform 7. A second connecting plate 9 is arranged at the bottom of the first connecting plate 8. A long vertical groove 12 is arranged on the second connecting plate 9. The first connecting plate 8 is matched with the vertical groove 12 through a connecting piece 14. A third connecting plate 10 is arranged between the second connecting plate 9 and the side plate 11; A long horizontal groove 13 is arranged on the side plate 11. The third connecting plate 10 is matched with the horizontal groove 13 through a connecting piece 14.

[0020] Among them, a rear baffle 3 located in front of the battery 4 is fixedly connected between the side plates 11. The rear baffle 3 is used to abut against the end of the battery 4 on the advancing side. Cooperating with the front baffle 6, the position of the battery 4 can be limited inside the tooling, so that the liquid injection port of the battery 4 is aligned with the liquid injection nozzle 2.

[0021] Among them, mounting holes 15 are evenly arranged on the bottom plate 5 along the advancing direction of the battery 4. The front baffle 6 is connected to the mounting holes 15 through fixing parts. The mounting holes 15 can provide multiple mounting positions for the front baffle 6 to adapt to aluminum shell batteries of different sizes.

[0022] The utility model can adapt to aluminum shell batteries of different sizes and can adjust the height and horizontal position of the liquid holding cup 1 corresponding to aluminum shell batteries of different sizes. The height position is adjusted by changing the fixed position of the connecting piece 14 and the vertical groove 12, so that the first connecting plate 8 rises or falls in the vertical groove 12, thereby changing the height of the support platform 7. The horizontal position is adjusted by changing the fixed position of the connecting piece 14 and the horizontal groove 13, so that the third connecting plate 10 moves left and right horizontally, thereby changing the horizontal position of the support platform 7 and aligning the liquid injection nozzle 2 with the liquid injection port of the battery 4. Moreover, the liquid injection nozzle 2 can fit with the liquid injection port of the aluminum shell battery to prevent the electrolyte from leaking from the contact position between the liquid injection nozzle 2 and the liquid injection port during the liquid injection process. Among them, two horizontal grooves 13 are provided, which can prevent the third connecting plate 10 from tilting when adjusting the horizontal position and increase the connection strength between the third connecting plate 10 and the side plate 11. The connecting piece 14 is an adjusting nut, which is convenient for tightening or loosening with the vertical groove 12 and the horizontal groove 13.

[0023] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A liquid injection tooling for lithium-ion aluminum shell batteries, comprising a bottom plate (5) and side plates (11), with a battery (4) placed between the side plates (11), characterized in that: The upper end surface of the bottom plate (5) is detachably provided with a front baffle (6), and the side end of the front baffle (6) abuts against the bottom of the battery (4); a liquid holding cup (1) and a support platform (7) are arranged on the upper side of the battery (4), and a liquid injection nozzle (2) at the bottom of the liquid holding cup (1) passes through the support platform (7) and is communicated with the battery (4); first connecting plates (8) are fixedly connected to both sides of the support platform (7), a second connecting plate (9) is arranged at the bottom of the first connecting plate (8), a long strip-shaped vertical groove (12) is arranged on the second connecting plate (9), the first connecting plate (8) is matched with the vertical groove (12) through a connecting piece (14), and a third connecting plate (10) is arranged between the second connecting plate (9) and the side plate (11); a long strip-shaped horizontal groove (13) is arranged on the side plate (11), and the third connecting plate (10) is matched with the horizontal groove (13) through a connecting piece (14).

2. The liquid injection tooling for a lithium-ion aluminum shell battery according to claim 1, wherein: A rear baffle (3) located in front of the battery (4) is fixedly connected between the side plates (11).

3. The liquid injection tooling for a lithium-ion aluminum shell battery according to claim 1, characterized in that: The bottom plate (5) is uniformly provided with mounting holes (15) along the advancing direction of the battery (4), and the front baffle (6) is connected to the mounting holes (15) through fixing pieces.

4. A liquid injection tooling for a lithium-ion aluminum shell battery according to claim 1, characterized in that: There are two of the horizontal grooves (13).

5. A liquid injection tooling for a lithium-ion aluminum shell battery according to claim 1, wherein: The connecting piece (14) is an adjusting nut.

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