Height-adjustable liquid injection clamp for cylindrical lithium battery and battery liquid injection device

Abstract

The utility model discloses a height-adjustable liquid injection clamp of a cylindrical lithium battery and a battery liquid injection device, the liquid injection clamp comprises a base, the bottom of the base is provided with a plurality of battery limiting parts, the top of the base is provided with a plurality of liquid injection ports corresponding to the positions of the battery limiting parts, and the liquid injection ports are communicated with the battery limiting parts. A telescopic adjusting device and a battery tray are fixed to each battery limiting part, and the telescopic adjusting devices are used for driving the battery trays to ascend and descend. The liquid injection clamp disclosed by the utility model can be flexibly adjusted according to the heights of different cylindrical lithium batteries through the telescopic adjusting device, so that the clamp can be suitable for liquid injection operation of the cylindrical lithium batteries of various models, the universality and the applicability of the clamp are improved, and the trouble that different clamps need to be replaced due to different heights of the batteries is avoided; and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of battery manufacturing, concretely relates to a height adjustable liquid injection fixture of cylindrical lithium battery and battery liquid injection device. BACKGROUND

[0002] With the development of science and technology, the application of lithium battery is more and more extensive, and its market demand is also increasing. In the production process of cylindrical lithium battery, liquid injection is an important process related to the advantages and disadvantages of battery performance, and its working efficiency directly affects the production efficiency and quality of the battery. In the liquid injection process, the design and use of tooling fixture are very important, which can ensure the stability of the battery during liquid injection, thereby improving the quality and efficiency of liquid injection.

[0003] In the existing design of lithium battery liquid injection tooling fixture, it is common to use fixed height pads, and the pads are placed in the tooling fixture inside the liquid injection machine to pad the clamped lithium battery during liquid injection, so that lithium batteries of different heights can reach the standard liquid injection height. Through this way, the liquid injection demand of different height batteries can be met to a certain extent.

[0004] However, since there are many models of cylindrical batteries, and the height of the pad is fixed, the cylindrical batteries of multiple height models cannot be adjusted during liquid injection. Therefore, multiple pads of different heights need to be prepared to meet different battery needs, which not only increases the production cost, but also reduces the working efficiency. At the same time, manual taking and placing of multiple pads increases the complexity of operation. SUMMARY

[0005] The utility model provides a kind of liquid injection fixture of height-adjustable cylindrical lithium battery, solve the problem of low liquid injection efficiency of existing battery liquid injection fixture when liquid injection of battery of different heights.

[0006] To solve the above technical problems, the utility model provides a kind of liquid injection fixture of height-adjustable cylindrical lithium battery, comprising: base, the bottom of the base is provided with a plurality of battery limiting parts, the top of the base is provided with a plurality of liquid injection ports corresponding to the position of the battery limiting part, a telescopic adjusting device and a battery tray are fixed on each battery limiting part, and the telescopic adjusting device is used to drive the battery tray to lift.

[0007] Preferably, the telescopic adjusting device includes an inner steel pipe and an outer steel pipe, one end of the inner steel pipe is sleeved into the outer steel pipe, a plurality of positioning holes are arranged on the outer steel pipe, a plurality of elastic buckles are arranged on the inner steel pipe and matched with the positioning holes, the elastic buckles are fixed on the inner steel pipe by springs, and the top of the outer steel pipe is connected with the battery tray.

[0008] Preferably, the telescopic adjusting device is provided with three groups and is in equilateral triangle distribution.

[0009] Preferably, the battery tray is in cylindrical shape.

[0010] Preferably, the top of the battery tray is provided with a limiting hole.

[0011] Preferably, the battery limiting part is a groove provided at the bottom of the base.

[0012] Preferably, the groove is provided with multiple grooves in parallel.

[0013] The utility model also provides a kind of battery liquid injection device, including the liquid injection clamp of adjustable height cylindrical lithium battery of above, further include liquid injection mechanism, the liquid injection mechanism is set to the top of the base.

[0014] The utility model has at least the following beneficial effects:

[0015] Through telescopic adjusting device, it can be flexibly adjusted according to the height of different cylindrical lithium battery, so that the clamp can be suitable for a variety of models of cylindrical lithium battery liquid injection operation, improve the versatility and applicability of the clamp, avoid the trouble of needing to replace different clamps due to the different heights of batteries, reduce production cost;By accurately adjusting the clamp to the appropriate height, ensure that the liquid injection port and the position of the battery are accurately corresponding, so that the liquid injection process is more accurate and stable, which helps to improve the precision and consistency of liquid injection, ensure the quality of liquid injection, reduce the problem such as inaccurate liquid injection amount and liquid injection position deviation, so as to improve the performance and quality stability of battery. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the front view of the utility model embodiment;

[0017] Figure 2 It is the isometric side view of the utility model embodiment;

[0018] Figure 3 It is the plan view of the utility model embodiment;

[0019] Figure 4 It is the section view of telescopic adjusting device of the utility model embodiment;

[0020] Figure 5 It is the structure schematic view of limiting part of the first embodiment of the utility model;

[0021] Figure 6 It is the structure schematic view of limiting part of the second embodiment of the utility model.

[0022] In the diagram: 1-base; 2-injection port; 3-telescopic adjustment device; 31-inner steel pipe; 311-spring buckle; 312-spring; 32-outer steel pipe; 321-positioning hole; 4-battery tray; 5-groove; 6-injection mechanism. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] like Figure 1 , 2 As shown in Figure 3, this utility model embodiment provides an adjustable height cylindrical lithium battery liquid injection clamp, including: a base 1, a plurality of battery limiting parts are provided at the bottom of the base 1, a plurality of liquid injection ports 2 corresponding to the positions of the battery limiting parts are provided at the top of the base 1, and a telescopic adjustment device 3 and a battery tray 4 are fixed on each battery limiting part. The telescopic adjustment device is used to drive the battery tray 4 to move up and down.

[0026] Specifically, the telescopic adjustment device allows for flexible adjustment based on the height of different cylindrical lithium batteries, making the clamp suitable for electrolyte filling operations on various models of cylindrical lithium batteries. This improves the clamp's versatility and applicability, avoiding the hassle of changing clamps for different battery heights and reducing production costs. By precisely adjusting the electrolyte filling clamp to the appropriate height, the position of the filling port is accurately aligned with the battery, making the electrolyte filling process more accurate and stable. This helps improve the precision and consistency of electrolyte filling, ensuring filling quality and reducing problems such as inaccurate filling volume and filling position deviation, thereby improving battery performance and quality stability.

[0027] like Figure 4 As shown, the telescopic adjustment device 3 includes an inner steel pipe 31 and an outer steel pipe 32. One end of the inner steel pipe 31 is inserted into the outer steel pipe 32. The outer steel pipe 32 is provided with multiple positioning holes 321. The inner steel pipe is provided with spring buckles 311 that cooperate with the positioning holes 321. The spring buckles 311 are fixed to the inner steel pipe 31 by springs 312. The top of the outer steel pipe 32 is connected to the battery tray 4.

[0028] Specifically, by matching the elastic buckle 311 with the positioning holes 321 at different positions, the inner steel pipe 31 can be accurately positioned at different heights, thereby accurately adjusting the overall height of the clamp to adapt to cylindrical lithium batteries of different heights, ensuring accurate docking of the liquid injection port with the battery and improving the accuracy and stability of liquid injection. The operator only needs to press the elastic buckle 311 to easily pull out the inner steel pipe 31 from the current positioning hole 321, then adjust it to the appropriate height and insert the elastic buckle 311 into the corresponding positioning hole 321, without the need for additional tools, simple and fast operation, which can complete the height adjustment in a short time and improve the efficiency of liquid injection work.

[0029] The telescopic adjustment device 3 is provided with three groups and is in an equilateral triangle distribution.

[0030] Specifically, the three groups of telescopic adjustment structures in equilateral triangle distribution can support and fix the telescopic adjustment device from three directions, which can more effectively prevent the telescopic adjustment device from tilting, shaking and other unstable phenomena during adjustment or after adjustment, compared with other distribution methods such as two-point support or irregular distribution, thereby ensuring the relative position accuracy between the clamp and the battery and being beneficial to improve the accuracy and consistency of liquid injection.

[0031] The battery tray 4 is in a cylindrical shape.

[0036] Figure 6 Specifically, the cylindrical battery tray 4 connects the three groups of telescopic adjustment structures together, making them form a more compact and stable whole. Compared with the three groups of telescopic adjustment structures alone, the connection through the cylindrical battery tray 4 can work better in cooperation, jointly bear and transmit forces from above or other directions, reduce the possibility of relative movement or shaking between the telescopic adjustment structures, and improve the stability and reliability of the entire telescopic adjustment device. The cylindrical block can evenly distribute the forces it bears to the three groups of telescopic adjustment structures. When external forces act on the battery tray, it can act as an intermediate medium to distribute the forces to the three groups of telescopic adjustment structures below in a more reasonable way, avoiding that a certain group of telescopic adjustment structures bears too much force and causes damage or deformation, further enhancing the stability and load-bearing capacity of the entire structure.

[0033] As shown in Figure 5 The top of the battery tray 4 is provided with a limiting hole.

[0034] Specifically, for small-diameter and low-height batteries, the size of the limiting hole matches the small-diameter battery, which can accurately fix the battery at a specific position, ensure that the battery does not move horizontally during the liquid injection process, and accurately align the liquid injection port with the battery, thereby improving the accuracy of liquid injection and reducing liquid injection deviation and liquid leakage. The operator only needs to insert the bottom of the small-diameter battery into the limiting hole to complete the positioning, without the need for additional fixing devices or complex operation steps, greatly improving the efficiency of battery clamping and saving operation time, which is conducive to improving production efficiency.

[0035] Embodiment two

[0036] A liquid injection clamp for height-adjustable cylindrical lithium batteries comprises a base 1, the bottom of the base 1 is provided with a plurality of battery limiting portions, and the top of the base 1 is provided with a plurality of liquid injection ports 2 corresponding to the positions of the battery limiting portions. Figure 6 As shown in the figure, the battery limiting portion is a groove 5 provided at the bottom of the base 1.

[0037] Specifically, for large-diameter and high-height batteries, placing the battery directly into the groove at the bottom of the base can complete the limiting, greatly saving operation time and labor cost and improving work efficiency. The operator can quickly align the battery with the groove and place it in position, because the position and size of the groove are fixed, it is easy to identify and operate, reducing the difficulty and time of positioning, making the battery installation process more smooth. Moreover, the groove can provide stable bottom support for large-diameter and high-height batteries, because the contact area between the battery and the groove is large and the shape is adapted to the bottom of the battery, it can effectively disperse the weight of the battery, reduce the risk of the battery falling due to high gravity center, and ensure the stability of the battery during static or subsequent operation.

[0038] The grooves 5 are arranged side by side.

[0039] Specifically, by arranging multiple grooves side by side, multiple batteries can be processed at a time, which greatly saves time and improves production efficiency compared to processing batteries one by one with a single groove. On an automatic production line, multiple side-by-side grooves can better match the rhythm of the production line, realize continuous feeding, processing and discharging of batteries, make the entire production process more smooth, reduce the waiting time of the equipment, and improve the overall operation efficiency of the production line.

[0040] The utility model embodiment further provides a battery liquid injection device, including the liquid injection clamp for height-adjustable cylindrical lithium batteries, still include liquid injection mechanism 6, liquid injection mechanism 6 set up in the top of base 1.

[0041] Specifically, the liquid injection mechanism 6 injects electrolyte into the cylindrical lithium battery fixed in the liquid injection clamp.

[0042] The liquid injection clamp with adjustable height of the cylindrical lithium battery can be adjusted according to the height change of the cylindrical lithium battery, is no longer limited to the fixed height, thereby adapting to the batteries with different heights, and a plurality of different height cushion blocks are not needed, so that the production cost is greatly reduced.

[0043] The technical features of the above embodiments can be combined arbitrarily, in order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, only the preferred embodiments of the utility model are expressed, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the utility model. As long as the combination of these technical features does not exist contradiction, it should be considered that the range recorded in the specification.

[0044] It should be pointed out that for ordinary skilled person in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the appended claims.

Claims

1. A height-adjustable liquid injection jig for a cylindrical lithium battery, characterized by comprising: The utility model relates to a battery liquid injection device, including: Base (1), the bottom of base (1) is provided with a plurality of battery limiting parts, the top of base (1) is provided with a plurality of liquid injection port (2) corresponding with the position of battery limiting part, each battery limiting part is fixed with telescopic adjusting device (3) and battery tray (4), and telescopic adjusting device is used to drive battery tray (4) to lift.

2. The height-adjustable cylindrical lithium battery liquid injection jig of claim 1, wherein: Telescopic adjusting device (3) includes inner steel pipe (31) and outer steel pipe (32), one end of inner steel pipe (31) is sleeved into outer steel pipe (32), a plurality of positioning hole (321) are arranged on outer steel pipe (32), and the elastic buckle (311) that is matched with positioning hole (321) is arranged on inner steel pipe, elastic buckle (311) is fixed on inner steel pipe (31) by spring (312), and the top of outer steel pipe (32) is connected with battery tray (4).

3. The height-adjustable cylindrical lithium battery liquid injection jig of claim 2, wherein: Telescopic adjusting device (3) is provided with three groups, and it is equilateral triangle distribution.

4. The height-adjustable cylindrical lithium battery liquid injection jig of claim 1, wherein: Battery tray (4) is cylindrical.

5. The height-adjustable cylindrical lithium battery liquid injection jig of claim 4, wherein: The top of battery tray (4) is provided with limiting hole.

6. The height-adjustable cylindrical lithium battery liquid injection jig according to claim 1, characterized in that: The battery limiting part is the recess (5) arranged on the bottom of base (1).

7. The height-adjustable liquid injection jig for cylindrical lithium batteries according to claim 6, characterized in that: A plurality of recesses (5) are arranged side by side.

8. A battery electrolyte injection apparatus comprising the height-adjustable electrolyte injection jig for a cylindrical lithium battery according to any one of claims 1 to 7, characterized by It further includes liquid injection mechanism (6), and liquid injection mechanism (6) is arranged on the top of base (1).

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