Battery liquid injection tool

Abstract

The utility model belongs to the technical field of battery manufacturing, and discloses a battery liquid injection tool which comprises a support, a limiting frame, a bearing frame, an abutting structure and a liquid injection mechanism. The limiting frame is installed on the support, and the battery is borne on the support and located on the limiting frame. The bearing frame is mounted on the bracket, and is positioned on one side of the limiting frame and one side of a battery liquid injection opening; the liquid injection mechanism is arranged on the bearing frame; the abutting structure is installed on the support, abuts against the bearing frame and is used for enabling the liquid injection mechanism to abut against and be communicated with a liquid injection opening of the battery. According to the battery liquid injection tool, the positioning stability and reliability between the battery and the liquid injection mechanism can be improved, the tightness degree of connection between the liquid injection mechanism and the liquid injection opening of the battery is improved, and the problem of electrolyte spraying during liquid injection is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery manufacturing technical field especially relates to a battery liquid injection tool. BACKGROUND

[0002] The appearance of square shell battery is a cube or cuboid, usually provided with a shell to protect the battery cell. When assembling the square shell battery, first, the battery cell is placed into the shell, and the top cover is sealingly welded at the open end of the top of the shell, then the electrolyte is injected into the shell through the liquid injection hole on the top cover, and finally the liquid injection hole is sealed, completing the assembly and manufacturing of the square shell battery.

[0003] Because the space in the shell is very limited, it is difficult to inject the electrolyte into the shell through the liquid injection hole, and the electrolyte is easily sprayed by high-pressure injection, which can easily corrode other structures on the top cover, is not conducive to improving the safety of battery manufacturing, and can adversely affect the quality of the finished battery.

[0004] Therefore, there is an urgent need for a battery liquid injection tool to solve the above problems. INVENTION CONTENTS

[0005] The utility model aims at providing a battery liquid injection tool, which can improve the positioning stability and reliability between the battery and the liquid injection mechanism, and improve the tightness of the connection between the liquid injection mechanism and the liquid injection port of the battery, avoiding the problem of electrolyte spraying during liquid injection.

[0006] To achieve this purpose, the utility model adopts the following technical scheme:

[0007] The battery liquid injection tool comprises:

[0008] A support for carrying the battery;

[0009] A limiting frame installed on the support, and the battery is positioned on the limiting frame;

[0010] A carrying frame installed on the support, located on one side of the limiting frame, and located on one side of the liquid injection port of the battery;

[0011] A liquid injection mechanism fixed on the carrying frame;

[0012] A pressing structure installed on the support and pressing on the carrying frame, for abutting and communicating the liquid injection mechanism with the liquid injection port of the battery.

[0013] As a preferred scheme of the battery liquid injection tool provided by the utility model, the liquid injection mechanism comprises a liquid injection pipe and a liquid injection head connected in communication, the liquid injection pipe is installed on the carrying frame, and the liquid injection head is connected in communication with the liquid injection port of the battery at the end away from the liquid injection pipe.

[0014] As a preferred scheme of the battery liquid injection tool provided by the utility model, the liquid injection mechanism further comprises a connecting pipe and an elastic element; the connecting pipe is connected between the connecting pipe and the liquid injection head and can be telescoped relative to the connecting pipe; the elastic element is arranged between the connecting pipe and the liquid injection head, and two ends of the elastic element abut against the connecting pipe and the liquid injection head respectively.

[0015] As a preferred scheme of the battery liquid injection tool provided by the utility model, the bearing frame comprises a bearing plate and a clamping structure, the clamping structure is connected to the end of the bearing plate and is connected to the support in a height-adjustable manner.

[0016] The abutting structure is connected to the support in a height-adjustable manner and can abut against one side of the clamping structure away from the limiting frame.

[0017] As a preferred scheme of the battery liquid injection tool provided by the utility model, the support is provided with a limiting groove along the distribution direction of the bearing frame and the limiting frame, the clamping structure is partially accommodated in the limiting groove, and the clamping structure and the limiting groove are in sliding fit.

[0018] As a preferred scheme of the battery liquid injection tool provided by the utility model, a sliding groove is formed in the bearing frame in a horizontal direction, the liquid injection mechanism passes through the sliding groove and the position of the liquid injection mechanism in the sliding groove is adjustable; the liquid injection mechanism comprises a fixing piece, and the fixing piece is used for fixing the position of the liquid injection mechanism on the bearing frame.

[0019] As a preferred scheme of the battery liquid injection tool provided by the utility model, the support comprises a support side plate and a support bottom plate, the support side plate is two, the two support side plates are arranged in parallel and spaced apart from each other, the limiting frame and the bearing frame are arranged between the two support side plates respectively, and the abutting structure is connected to the support side plate; the support bottom plate is arranged between the two support side plates in a position-adjustable manner and is used for supporting the battery.

[0020] As a preferred scheme of the battery liquid injection tool provided by the utility model, the limiting frame comprises a limiting plate and a support piece, the support piece is supported and connected to one side of the limiting plate away from the bearing frame and is connected to the support in a position-adjustable manner.

[0021] As a preferred scheme of the battery liquid injection tool provided by the utility model, a plurality of battery insertion grooves are arranged on the limiting plate, the plurality of battery insertion grooves are arranged in a spaced-apart manner in a horizontal direction, an insertion opening is formed in one end of the battery insertion groove in a direction perpendicular to the distribution direction of the plurality of battery insertion grooves, and the battery can be inserted into the battery insertion groove from the insertion opening.

[0022] As a preferred scheme of the battery liquid injection tool provided by the utility model, the two sides of the insertion port are respectively provided with guide portions, and the two guide portions gradually approach in the direction from the insertion port to the inside of the battery insertion slot.

[0023] The slot bottom of the battery insertion slot away from the insertion port is provided with an avoiding slot corresponding to the side edge of the battery, and the side edge of the battery is arranged in a spaced manner with the inner wall of the avoiding slot.

[0024] The utility model discloses the beneficial effect:

[0025] The battery liquid injection tool provided by the utility model comprises a support, a limiting frame, a bearing frame, a pressing structure and a liquid injection mechanism. The support is used for bearing the battery. The limiting frame is installed on the support, and the battery is positioned on the limiting frame. The bearing frame is installed on the support and located on one side of the limiting frame and on one side of the battery liquid injection port. The liquid injection mechanism is fixed on the bearing frame. Through the limiting frame, stable and reliable positioning of the battery can be provided. Through the bearing frame, positioning and installation of the liquid injection mechanism can be realized. That is, through positioning of the battery and the liquid injection mechanism by the limiting frame and the bearing frame, the positioning stability and reliability between the battery and the liquid injection mechanism can be improved. The pressing structure is installed on the support and presses on the bearing frame, and is used for abutting and connecting the liquid injection mechanism to the liquid injection port of the battery. Through the pressing structure, certain pressure can be applied to the bearing frame, so that certain pre-tightening force is applied to the liquid injection mechanism, the liquid injection mechanism is tightly pressed on the liquid injection port of the battery, the tightness of the connection between the liquid injection mechanism and the liquid injection port of the battery is improved, and the problem of electrolyte spraying during liquid injection is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the description of the embodiments of the utility model will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the contents of the embodiments of the utility model and the drawings by those skilled in the art without creating creative labor.

[0027] Figure 1 It is the structure schematic of the battery liquid injection tool provided by the embodiments of the utility model Figure 1 ;

[0028] Figure 2 It is Figure 1 the local enlarged view of the structure marked as A in the figure

[0029] Figure 3 It is Figure 1 the local enlarged view of the structure marked as B in the figure

[0030] Figure 4 is a structural schematic view of the liquid injection mechanism provided by the embodiment of the utility model;

[0031] Figure 5 is a disassembled schematic view of the battery liquid injection tool provided by the embodiment of the utility model;

[0032] Figure 6 is Figure 5 the local enlarged view of the structure marked as C in the figure;

[0033] Figure 7 is a structural schematic view of the battery liquid injection tool provided by the embodiment of the utility model Figure 2 ;

[0034] Figure 8 is Figure 7 the local enlarged view of the structure marked as D in the figure.

[0035] in the figure:

[0036] 10, battery;

[0037] 100, support; 110, support side plate; 111, limiting groove; 112, side plate mounting hole; 113, first connecting hole; 114, second waist-shaped long hole; 120, support bottom plate;

[0038] 200, limiting frame; 210, limiting plate; 211, battery insertion slot; 212, guide part; 213, avoiding groove; 220, support piece;

[0039] 300, bearing frame; 310, bearing plate; 311, mounting hole; 312, avoiding through hole; 320, clamping structure; 321, second connecting hole;

[0040] 400, pressing structure; 410, pressing part; 420, connecting part; 421, first waist-shaped long hole;

[0041] 500, liquid injection mechanism; 510, liquid injection pipe; 520, liquid injection head; 530, connecting pipe; 540, connecting pipe; 550, elastic element; 560, fixing piece; 561, third connecting hole. DETAILED DESCRIPTION

[0042] The technical scheme of the utility model will be further illustrated by specific embodiments in combination with the drawings.

[0043] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0045] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0046] In the description of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0047] In the description of the present application, it should also be noted that, unless otherwise specified and limited, the terms "set", "connect", "fix" should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can include direct contact between the first and second features, or indirect contact between the first and second features through another feature therebetween. Moreover, the first feature "on", "above" and "on the surface of" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "under" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0049] In the present application, the term "and / or" is only a description of the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in the present application generally represents an "or" relationship between the front and rear associated objects.

[0050] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0051] Referring to Figure 1 The present embodiment provides a battery liquid injection tool. The battery liquid injection tool comprises a support 100, a limiting frame 200, a bearing frame 300, a pressing structure 400 and a liquid injection mechanism 500.

[0052] Specifically, the support 100 is used for bearing the battery 10. The limiting frame 200 is installed on the support 100, and the battery 10 is positioned on the limiting frame 200. The bearing frame 300 is installed on the support 100 and located on the side above the limiting frame 200, is arranged in a spaced manner with the limiting frame 200, and is located on the side of the liquid injection port of the battery 10. The liquid injection mechanism 500 is fixed on the bearing frame 300. The pressing structure 400 is installed on the support 100 and is pressed on the side of the bearing frame 300 away from the limiting frame 200, and is used for abutting and communicating the liquid injection mechanism 500 with the liquid injection port of the battery 10.

[0053] By the above-mentioned limiting frame 200, stable and reliable positioning of the battery 10 can be provided. By the above-mentioned bearing frame 300, positioning and installation of the liquid injection mechanism 500 can be achieved. That is, by positioning the battery 10 and the liquid injection mechanism 500 through the limiting frame 200 and the bearing frame 300, the positioning stability and reliability between the battery 10 and the liquid injection mechanism 500 can be improved. By the abutting structure 400, a certain pressure can be applied to the bearing frame 300, so as to apply a certain pre-tightening force to the liquid injection mechanism 500, tightly abut the liquid injection mechanism 500 against the liquid injection port of the battery 10, improve the tightness of the connection between the liquid injection mechanism 500 and the liquid injection port of the battery 10, and avoid the problem of electrolyte spraying during liquid injection.

[0054] For specific reference, Figures 1-5 The support 100 includes a support side plate 110 and a support bottom plate 120. The support side plate 110 is two, and the two support side plates 110 are arranged in parallel and spaced apart from each other. The limiting frame 200 and the bearing frame 300 are arranged between the two support side plates 110, respectively. The abutting structure 400 is two, and the two abutting structures 400 are connected to the two support side plates 110, respectively, so as to abut the two ends of the bearing frame 300 in the length direction of the support 100. The support bottom plate 120 is adjustably arranged between the two support side plates 110, and can support the battery 10. By adjusting the height of the support bottom plate 120 on the support side plate 110, the support of the battery 10 with different height sizes can be adapted.

[0055] More specifically, the support side plate 110 is provided with a plurality of groups of side plate mounting holes 112 corresponding to the positions of the support bottom plate 120 along the width direction of the support 100, each group including a plurality of side plate mounting holes 112 arranged in spaced apart manner along the height direction of the support 100. By aligning the support bottom plate 120 with the side plate mounting holes 112 of different heights and connecting by using bolts or other connecting members, the installation of the support bottom plate 120 at the target height of the support side plate 110 can be achieved.

[0056] For reference, Figure 1 , Figure 5 and Figure 7 The limiting frame 200 includes a limiting plate 210 and a support 220. The support 220 is two, and the two supports 220 respectively support the two ends connected to the side of the limiting plate 210 away from the bearing frame 300, and the support 220 is adjustably connected to the support 100. Through the above-mentioned arrangement, the height adjustment of the limiting plate 210 can be achieved, and then the installation and positioning of the battery 10 with different height sizes can be adapted.

[0057] Specifically, the support 220 is in a long strip structure, which is arranged along the width direction of the bracket 100, and has the same length as the width of the limiting plate 210, so as to provide stable and reliable support for the limiting plate 210 and ensure the reliability and stability of the limiting plate 210 when supporting the battery 10.

[0058] Specifically, the limiting plate 210 is provided with a plurality of battery insertion slots 211. The plurality of battery insertion slots 211 are arranged in the horizontal direction (specifically, along the length direction of the bracket 100), and the battery insertion slot 211 is provided with an insertion opening at one end (specifically, along the width direction of the bracket 100). The battery 10 can be inserted into the battery insertion slot 211 from the insertion opening. Through the above arrangement, the limiting plate 210 can simultaneously realize the positioning of a plurality of batteries 10, that is, the battery liquid injection tool can simultaneously realize the liquid injection of a plurality of batteries 10, thereby improving the efficiency.

[0059] More specifically, referring to Figure 5 and Figure 6 , the two sides of the insertion opening are respectively provided with guide portions 212, and in the width direction of the bracket 100, the two guide portions 212 gradually approach from the insertion opening to the inside of the battery insertion slot 211. That is, the guide portion 212 can guide the insertion of the battery 10 into the insertion opening, and facilitate the installation of the battery 10 on the limiting plate 210.

[0060] As a preferred, in the present embodiment, the guide portion 212 is in a circular arc transition, and the guide portions 212 on both sides of the insertion opening protrude towards each other. That is, the surface of the guide portion 212 is smooth without edges and corners, which can avoid the edges and corners from colliding with the battery 10 and damaging the battery 10.

[0061] More specifically, referring to Figure 7 and Figure 8 , the battery insertion slot 211 is provided with a avoiding groove 213 corresponding to the side edge of the battery 10 away from the insertion opening, and the side edge of the battery 10 is arranged away from the inner wall of the avoiding groove 213. In the present embodiment, the cross section of the avoiding groove 213 is specifically circular, which can avoid and protect the side edge of the battery 10.

[0062] Referring to Figure 1 , Figure 2 , Figure 5 and Figure 7The carrier frame 300 comprises a carrier plate 310 and a clamping structure 320. The clamping structure 320 is two, and the two clamping structures 320 are respectively connected to the two ends of the carrier plate 310 in the length direction of the support 100, and the clamping structure 320 is adjustably connected to the support 100. The pressing structure 400 is two, and the two pressing structures 400 are respectively adjustably arranged on the side of the two support side plates 110 away from each other. The pressing structure 400 can press against the side of the clamping structure 320 away from the limiting frame 200, so as to exert a downward pre-tightening force on the carrier frame 300.

[0063] Specifically, the pressing structure 400 comprises a pressing part 410 and a connecting part 420. The pressing part 410 and the connecting part 420 are connected perpendicular to each other, forming an L-shaped pressing structure 400. The connecting part 420 is adjustably arranged in height relative to the support side plate 110, thereby adjusting the relative height of the pressing part 410 and the clamping structure 320. The pressing part 410 can press against the side of the clamping structure 320 away from the limiting frame 200.

[0064] Further specifically, with reference to Figure 5 A first waist-shaped long hole 421 is formed on the connecting part 420, and the long axis direction of the first waist-shaped long hole 421 is parallel to the height direction of the support 100. A plurality of first connecting holes 113 are formed on the support side plate 110 and are spaced apart in the height direction of the support 100. A connecting member such as a bolt is inserted into the first waist-shaped long hole 421 and one of the first connecting holes 113, and a nut is used to fasten the bolt. The position of the bolt in the long axis direction of the first waist-shaped long hole 421 is adjustable, thereby achieving the connection between the connecting part 420 and the support side plate 110, and adjusting the height of the pressing structure 400 relative to the support side plate 110.

[0065] More specifically, the support side plate 110 is provided with a limiting groove 111 in the distribution direction of the carrier frame 300 and the limiting frame 200. The clamping structure 320 is partially accommodated in the limiting groove 111, and the clamping structure 320 and the limiting groove 111 are in sliding fit. The position of the clamping structure 320 in the height direction of the support 100 is adjustable. The limiting groove 111 can provide limiting when the height of the clamping structure 320 relative to the support side plate 110 is adjusted, so as to ensure the verticality of the height adjustment of the clamping structure 320.

[0066] More specifically, the support side plate 110 is provided with a second waist-shaped long hole 114 along the height direction of the support 100, and the clamping structure 320 is provided with a plurality of second connecting holes 321 spaced apart along the height direction of the support 100. A connecting member such as a bolt is inserted through the second waist-shaped long hole 114 and one of the second connecting holes 321, and a nut is used to fasten the bolt, thereby achieving the connection of the clamping structure 320 and the support side plate 110. The position of the bolt in the long axis direction of the second waist-shaped long hole 114 can be adjusted, thereby achieving the height adjustment of the clamping structure 320 relative to the support side plate 110.

[0067] Continuing to refer to Figure 1 , Figure 5 and Figure 7 , the carrying plate 310 is provided with a sliding groove in the horizontal direction, and the liquid injection mechanism 500 passes through the sliding groove and the position of the liquid injection mechanism 500 in the sliding groove is adjustable. The carrying plate 310 is provided with a plurality of liquid injection mechanisms 500 corresponding to the plurality of batteries 10 on the limiting frame 200 along the length direction of the support 100. Referring to Figure 3 , the carrying plate 310 is provided with a relief hole 312, which is the sliding groove mentioned above. The relief hole 312 is also in a waist-shaped structure, and the long axis direction of the relief hole 312 extends along the length direction of the support 100. The relief hole 312 can avoid part of the structure of the liquid injection mechanism 500.

[0068] Specifically, referring to Figure 1 and Figure 4 , the liquid injection mechanism 500 includes a liquid injection pipe 510 and a liquid injection head 520 which are connected. The liquid injection pipe 510 is installed on the side of the carrying frame 300 away from the limiting frame 200, and the liquid injection head 520 is located on the side of the carrying frame 300 facing the limiting frame 200. The end of the liquid injection head 520 away from the liquid injection pipe 510 is connected to and communicates with the liquid injection port of the battery 10.

[0069] More specifically, referring to Figure 4 , the liquid injection mechanism 500 further includes a connecting pipe 530, a connecting pipe 540 and an elastic element 550. The connecting pipe 530 is connected to the liquid injection pipe 510 and penetrates the relief hole 312 on the carrying frame 300. The connecting pipe 540 is connected between the connecting pipe 530 and the liquid injection head 520 and can be telescopic relative to the connecting pipe 530. The elastic element 550 is coaxially arranged on the outer periphery of the connecting pipe 540 and is arranged between the connecting pipe 530 and the liquid injection head 520. Through the elastic element 550, a certain pre-tightening force can be provided to the pressing of the liquid injection head 520 against the liquid injection hole of the battery 10.

[0070] More specifically, the liquid injection mechanism 500 comprises a fixing member 560 connected to the bottom of the liquid injection pipe 510 and extending out of the bottom of the liquid injection pipe 510. The fixing member 560 is adjustably connected to the carrier 300 in the length direction of the support 100, for fixing the position of the liquid injection mechanism 500 on the carrier 300. Continue to refer to Figure 3 The carrier plate 310 is provided with a mounting hole 311 in a waist-shaped structure, with the long axis direction extending along the length direction of the support 100. The fixing member 560 is provided with a third connecting hole 561. A connecting member such as a bolt is passed through the third connecting hole 561 and the mounting hole 311, and a nut is fastened on the bolt, so as to realize the connection of the fixing member 560 and the carrier plate 310. The position of the bolt in the long axis direction of the mounting hole 311 is adjustable, so as to realize the adjustment of the position of the fixing member 560 relative to the carrier plate 310 in the length direction of the support 100.

[0071] Obviously, the above embodiments of the present application are merely examples for clear illustration of the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is unnecessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A battery liquid injection tool, characterized in that, include: A bracket (100) is used to support the battery (10); A limiting frame (200) is installed on the bracket (100), and the battery (10) is positioned on the limiting frame (200); The support frame (300) is mounted on the bracket (100), located on one side of the limiting frame (200), and on one side of the liquid injection port of the battery (10); The liquid injection mechanism (500) is fixed on the support frame (300); A pressure-retaining structure (400) is mounted on the bracket (100) and presses against the support frame (300) to connect the liquid injection mechanism (500) to the liquid injection port of the battery (10).

2. The battery liquid injection tooling of claim 1, wherein, The liquid injection mechanism (500) includes a liquid injection tube (510) and a liquid injection head (520) connected in series. The liquid injection tube (510) is mounted on the support frame (300), and the end of the liquid injection head (520) away from the liquid injection tube (510) is connected to and connected to the liquid injection port of the battery (10).

3. The battery liquid injection tool of claim 2, wherein, The injection mechanism (500) further includes a connecting tube (530), a connecting tube (540), and an elastic element (550); the connecting tube (530) is connected to the injection tube (510) and passes through the support frame (300); the connecting tube (540) is connected between the connecting tube (530) and the injection head (520) and is capable of telescoping relative to the connecting tube (530); the elastic element (550) is disposed between the connecting tube (530) and the injection head (520), and the two ends of the elastic element abut against the connecting tube (530) and the injection head (520) respectively.

4. The battery liquid injection tool of claim 1, wherein, The support frame (300) includes a support plate (310) and a snap-fit ​​structure (320), the snap-fit ​​structure (320) being connected to the end of the support plate (310) and height-adjustably connected to the bracket (100); The pressure structure (400) is height-adjustably connected to the bracket (100) and can press against the side of the snap-fit ​​structure (320) away from the limiting frame (200).

5. The battery liquid injection tool of claim 4, wherein, The bracket (100) has a limiting groove (111) along the distribution direction of the support frame (300) and the limiting frame (200). The snap-fit ​​structure (320) is partially accommodated in the limiting groove (111), and the snap-fit ​​structure (320) slides with the limiting groove (111).

6. The battery liquid injection tool of claim 4, wherein, The support frame (300) has a horizontal groove, and the liquid injection mechanism (500) passes through the groove and its position within the groove is adjustable; the liquid injection mechanism (500) includes a fixing member (560) for fixing the position of the liquid injection mechanism (500) on the support frame (300).

7. The battery liquid injection tool of claim 1, wherein, The support frame (100) comprises support side plates (110) and a support bottom plate (120), the support side plates (110) are two, the two support side plates (110) are arranged in parallel and spaced apart from each other, the limiting frame (200) and the bearing frame (300) are arranged between the two support side plates (110) respectively, and the pressing structure (400) is connected to the support side plates (110); the support bottom plate (120) is arranged between the two support side plates (110) in a position-adjustable manner, and is used for supporting the battery (10).

8. The battery liquid injection tool according to any one of claims 1-7, wherein, The limiting frame (200) comprises a limiting plate (210) and a support piece (220), the support piece (220) is supported and connected to one side of the limiting plate (210) away from the bearing frame (300), and is connected to the support frame (100) in a position-adjustable manner.

9. The battery liquid injection tool of claim 8, wherein, The limiting plate (210) is provided with a plurality of battery plug-in grooves (211), the plurality of battery plug-in grooves (211) are arranged in a horizontal direction and are spaced apart, an insertion opening is arranged at one end of the battery plug-in groove (211) in a direction perpendicular to the distribution direction of the plurality of battery plug-in grooves (211), and the battery (10) can be inserted into the battery plug-in groove (211) from the insertion opening.

10. The battery liquid injection tool of claim 9, wherein, Two guide portions (212) are arranged on both sides of the insertion opening respectively, the two guide portions (212) gradually approach in a direction from the insertion opening to the inside of the battery plug-in groove (211); and / or A avoiding groove (213) corresponding to a side edge of the battery (10) is arranged on a groove bottom of the battery plug-in groove (211) away from the insertion opening, and the side edge of the battery (10) is arranged in a spaced-apart manner with the inner wall of the avoiding groove (213).

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