Square lithium battery liquid supplementing tool

Abstract

The utility model discloses a square lithium battery liquid supplementing tool, the top surface of a square lithium battery is provided with a liquid injection hole, the square lithium battery liquid supplementing tool comprises a liquid storage cup, the top surface of the liquid storage cup is provided with an opening, and the bottom surface of the liquid storage cup is provided with a liquid injection nozzle used for injecting liquid into the liquid injection hole; the clamp frame is used for clamping and fixing the top of the square lithium battery, the liquid storage cup is arranged on the clamp frame, and the clamp frame is provided with a pair of clamping plates used for clamping and fixing the square lithium battery from the two opposite sides of the square lithium battery. According to the tool provided by the utility model, the battery liquid supplementing work can be realized on the premise that the machine is not stopped.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery production, and particularly relates to a square lithium battery liquid filling tooling. Background Art

[0002] As an energy storage device, the battery is undergoing revolutionary changes and rapid development. From the earliest disposable alkaline batteries to today's lithium-ion batteries, battery technology has made great progress and breakthroughs through years of research and innovation.

[0003] However, in the process of battery production, there are still some challenges and problems. One prominent problem is the insufficient injection volume.

[0004] During the production of 280Ah lithium batteries, a large number of under-filled batteries will occur in the liquid injection process due to battery, process, equipment and other problems. The under-filled batteries that exceed the upper limit of the semi-automatic liquid filling station need to be reworked manually by personnel using equipment. Each rework takes about 1.5 hours, seriously affecting production efficiency.

[0005] Patent document CN220963694U discloses a lithium battery automatic battery liquid filling device, including a machine table. A frame is provided on the machine table. A moving module is provided at the top of the frame. A battery picking manipulator is provided on the moving module. A liquid filling mechanism is provided on the side of the moving module. A defective product discharge belt is provided on the machine table below the liquid filling mechanism. A non-defective product discharge belt is provided in parallel on one side of the defective product discharge belt. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a square lithium battery liquid filling tooling, which can realize the battery liquid filling work on the premise of non-stop operation.

[0007] In order to achieve the purpose of the utility model, the following technical solutions are provided: A square lithium battery liquid filling tooling. The top surface of the square lithium battery has a liquid injection hole. The square lithium battery liquid filling tooling includes:

[0008] A liquid storage cup with an open top surface and a liquid injection nozzle provided at the bottom for injecting liquid into the liquid injection hole;

[0009] A fixture rack for clamping and fixing the top of the square lithium battery. The liquid storage cup is arranged on the fixture rack. A pair of clamping plates for clamping and fixing the square lithium battery from opposite sides of the square lithium battery are provided on the fixture rack.

[0010] The utility model replenishes the electrolyte through the tooling, puts it into the static cavity of the equipment to fill the battery with liquid. The tooling is easy to operate, does not need to empty the equipment and stop the machine, and the static cavity is manually operated during normal production, improving the equipment efficiency.

[0011] Specifically, the fixture rack includes a horizontal mounting plate and two vertical mounting plates located on both sides of the horizontal mounting plate. The clamping plates are provided on the two vertical mounting plates, and at least one of the clamping plates is adjustable in the horizontal direction.

[0012] Specifically, the clamping plate adjustable in the horizontal direction is connected by a pressing screw passing through the vertical mounting plate and threadedly connected to the vertical mounting plate. A guide post passing through the vertical mounting plate is also provided on this clamping plate.

[0013] Specifically, a first flexible pad is provided on the clamping surface of the clamping plate.

[0014] Specifically, an avoidance hole for avoiding the liquid injection nozzle is provided on the horizontal mounting plate.

[0015] Specifically, the bottom side wall of the liquid storage cup has an outwardly extending mounting flange, and a first mounting hole is provided on the mounting flange.

[0016] A corresponding second mounting hole is provided on the horizontal mounting plate.

[0017] The liquid storage cup is installed by a vertical bolt sequentially passing through the first mounting hole and the second mounting hole.

[0018] Specifically, the vertical bolt includes a head and a screw rod portion. The head is located above the mounting flange, and the screw rod portion passes through the first mounting hole and is movably connected to the first mounting hole.

[0019] A compression spring is also sleeved on the part of the screw rod portion located above the mounting flange.

[0020] Specifically, it further includes a tray. A plurality of placement positions for placing square lithium batteries are provided on the tray, and each placement position has a card slot that is snap-connected to the bottom of the square lithium battery.

[0021] Specifically, a guiding surface is provided at the mouth of the card slot;

[0022] A handle is provided on the outer side wall of the tray.

[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0024] During the liquid replenishment process using the tooling, there is no need to stop the machine. When standing still, only the tooling needs to be placed in the standing still bell jar and manually stand still at a single station, so as to ensure that the equipment keeps running and reduce the impact of machine stop on the front and back processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of the square lithium battery liquid replenishment tooling provided in this embodiment;

[0026] Figure 2Top view of the tray provided in this embodiment;

[0027] Figure 3 Front view of the fixture rack provided in this embodiment;

[0028] Figure 4 Another perspective view of the fixture rack provided in this embodiment;

[0029] Figure 5 Cross-sectional view of the liquid storage cup provided in this embodiment;

[0030] Figure 6 Schematic diagram of the square lithium battery provided in this embodiment;

[0031] In the figure, 1 is the fixture rack; 1-1 is the vertical mounting plate; 1-2 is the horizontal mounting plate; 1-3 is the clamping plate; 1-4 is the guide post; 1-5 is the compression screw; 1-6 is the screw rod part; 1-7 is the compression spring; 1-8 is the head; 1-9 is the first flexible pad; 1-10 is the second flexible pad; 2 is the tray; 2-1 and 2-2 are the card slots; 2-3 is the handle; 3 is the liquid storage cup; 3-1 is the outer shell; 3-2 is the liquid injection nozzle; 4 is the square lithium battery; 4-1 is the liquid injection hole. Detailed implementation manners

[0032] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0033] As Figure 1 shown, a square lithium battery liquid replenishment tool provided in this embodiment includes a fixture rack 1, a liquid storage cup 3 provided above the fixture rack 1, the fixture rack 1 is used to clamp the square lithium battery 4 below, and a tray 2 for placing multiple groups of square lithium batteries 4.

[0034] Furthermore, as Figure 2 shown is the top view of the tray provided in this embodiment, wherein the tray 1 is provided with a plurality of placement positions for placing square lithium batteries, and each placement position has a card slot 3-1 that is snap-connected to the bottom of the square lithium battery 4.

[0035] The mouth of the card slot 3-1 is provided with a guiding surface to facilitate the placement of the square lithium battery 4; at the same time, a handle 3-2 is provided on the outer side wall of the tray 2 to facilitate the batch transfer of the batteries after the liquid injection process is completed daily.

[0036] As Figure 3 and Figure 4As shown in the figure, the fixture rack provided by this embodiment, the fixture rack 1 includes a horizontal mounting plate 1-1 and two vertical mounting plates 1-2 located on both sides of the horizontal mounting plate 1-1. Clamping plates 1-3 are provided on the two vertical mounting plates 1-2, and at least one of the clamping plates is horizontally adjustable. The horizontally adjustable clamping plate 1-3 is connected by a compression screw 1-5 that passes through the vertical mounting plate 1-2 and is threadedly connected to the vertical mounting plate 1-2. A guide post 1-4 that passes through the vertical mounting plate 1-2 is also provided on the clamping plate 1-3.

[0037] The bottom side wall of the liquid storage cup 3 has an outwardly extending mounting flange, and a first mounting hole is provided on the mounting flange.

[0038] Corresponding second mounting holes are provided on the horizontal mounting plate 1-2.

[0039] The liquid storage cup 3 is installed by a vertical bolt that sequentially passes through the first mounting hole and the second mounting hole. The vertical bolt includes a head 1-5 and a screw rod portion 1-6. The head 1-5 is located above the mounting flange, and the screw rod portion 1-6 passes through the first mounting hole and is movably connected to the first mounting hole. At the same time, a compression spring 1-8 is sleeved on the part of the screw rod portion 1-6 located above the mounting flange to provide a pre-tightening force during fixation.

[0040] In addition, a first flexible pad 1-9 is provided on the clamping surface of each clamping plate, and a second flexible pad 1-10 that abuts against the top surface of the square lithium battery 4 is provided on the bottom surface of the horizontal mounting plate 1-2.

[0041] The flexible pad used in this example is a rubber pad, which not only ensures that there will be no problem of battery deformation caused by excessive extrusion, but also increases the friction force of the extrusion surface.

[0042] As Figure 5 shown, it is a cross-sectional view of the inside of the liquid storage cup provided by this example, which includes a housing 3-1 and a liquid injection nozzle 3-2 provided at the bottom for injecting liquid into the battery liquid injection hole. In this embodiment, a funnel structure is adopted to ensure that the replenishing liquid better flows into the lower battery, and at the same time prevent electrolyte residue. In addition, a reinforcing rib design is adopted for the housing 3-1 to ensure strength.

[0043] The liquid injection nozzle 3-2 is made of rubber material to ensure the sealing performance during liquid replenishment.

[0044] As Figure 6 shown, it is a structural schematic diagram of the square lithium battery provided by this embodiment. The top surface of the square lithium battery 4 has a liquid injection hole 4-1, and the liquid injection hole 4-1 corresponds to the liquid injection nozzle 3-2 above.

[0045] During use, multiple batteries are neatly placed in a tray. For each battery, a jig with a liquid injection cup is placed on the battery cover plate, and the liquid injection nozzle of the liquid injection cup is roughly aligned with the liquid injection port of the battery. Then, the jig is pressed down so that the rubber pad of the horizontal mounting plate contacts the battery, and at the same time, the clamping plate of the vertical mounting plate clings to the side of the battery. Finally, the fixing task is completed by adjusting the vertical bolt and the compression screw.

[0046] Using the liquid replenishment tooling can reduce the downtime caused by a large number of underfilled batteries. Without using the tooling for manual liquid replenishment, the production line needs to be cleared and the batteries need to be transferred individually, with an average time consumption of more than 1.5 hours. When using the tooling for liquid replenishment, the process does not require downtime. During static placement, only the tooling needs to be placed in the static bell jar for manual single-station static placement, and then the machine can be started normally. The process takes about 10 minutes, greatly reducing the equipment efficiency. At the same time, it ensures the continuous operation of the equipment and reduces the impact of downtime on the front and back processes.

[0047] In addition, the terms "upper", "lower", "inner", "outer", "front", and "back" are only used for descriptive purposes and should not be construed as indicating or implying relative importance. Unless otherwise specifically stated, the relative steps, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of the present invention.

[0048] Of course, the above are only specific embodiments of the present invention and do not limit the scope of implementation of the present invention. Any equivalent changes or modifications made according to the structure, features, and principles described in the scope of the patent application of the present invention should be included in the scope of the patent application of the present invention.

[0049] Finally, it should be noted that the above embodiments are only specific implementation manners of the present invention, used to illustrate the technical solutions of the present invention, and are not intended to limit them. The protection scope of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that any person skilled in the art within the technical scope disclosed by the present invention can still modify the technical solutions described in the foregoing embodiments, or can easily think of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes, or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A square lithium battery refilling tool, the top surface of the square lithium battery has a refilling hole, characterized in that: The square lithium battery refilling tool comprises: A liquid storage cup, with an opening on the top surface and a liquid injection nozzle on the bottom surface for injecting liquid into the liquid injection hole; The clamp frame is used to clamp and fix the top of the square lithium battery. The liquid storage cup is arranged on the clamp frame. The clamp frame is provided with a pair of clamping plates for clamping and fixing the square lithium battery from opposite sides of the square lithium battery.

2. The square lithium battery refilling tool according to claim 1, characterized in that: The clamp frame comprises a horizontal mounting plate and two vertical mounting plates located on both sides of the horizontal mounting plate, the two vertical mounting plates are provided with the clamping plates, and at least one of the clamping plates is adjustable in the horizontal direction.

3. The square lithium battery refilling tool according to claim 2, characterized in that: The clamping plate which is adjustable in the horizontal direction is connected by a clamping screw which passes through the vertical mounting plate and is threadedly connected with the vertical mounting plate. The clamping plate is also provided with a guide column which passes through the vertical mounting plate.

4. The square lithium battery refilling tool according to claim 2, characterized in that: A first flexible pad is provided on the clamping surface of the clamping plate.

5. The square lithium battery refilling tool according to claim 2, characterized in that: The bottom surface of the horizontal mounting plate has a second flexible pad that abuts against the top surface of the square lithium battery.

6. The square lithium battery refilling tool according to claim 2, characterized in that: The horizontal mounting plate is provided with an avoidance hole for avoiding the liquid injection nozzle.

7. The square lithium battery refilling tool according to claim 2, characterized in that: The bottom side wall of the liquid storage cup has a mounting flange extending outward, and the mounting flange is provided with a first mounting hole. The horizontal mounting plate is correspondingly provided with a second mounting hole, The liquid storage cup is installed by vertical bolts passing through the first mounting hole and the second mounting hole in sequence.

8. The square lithium battery refilling tool according to claim 7, characterized in that: The vertical bolt includes a head and a screw portion, wherein the head is located above the mounting flange, and the screw portion passes through the first mounting hole and is movably connected to the first mounting hole. A compression spring is sleeved on the portion of the screw rod portion located above the mounting protrusion.

9. The square lithium battery refilling tool according to claim 1, characterized in that: It also includes a tray, on which a plurality of placement positions for placing square lithium batteries are arranged, and each placement position has a card slot that is card-connected with the bottom of the square lithium battery.

10. The square lithium battery refilling tool according to claim 9, characterized in that: The mouth of the slot is provided with a guide surface; The outer side wall of the tray is provided with a handle.

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