Battery liquid injection clamp and liquid injection equipment

Abstract

The invention relates to a battery liquid injection clamp and liquid injection equipment, and the battery liquid injection clamp comprises a jig platform with a height direction; the positioning assembly is arranged on the jig platform and comprises a positioning piece and a first elastic piece, a positioning groove and a first avoiding notch are formed in the positioning piece, the positioning groove extends in the height direction, the first avoiding notch is partially adjacent to the positioning groove, and the first elastic piece is arranged in the positioning groove in a protruding mode in the radial direction of the positioning groove; and the clamping assembly is movably arranged on the jig platform corresponding to the first avoiding notch, and the clamping assembly is close to or far away from the first avoiding notch so as to abut against or loosen the battery contained in the positioning groove. According to the technical scheme, the technical problems that a traditional liquid injection clamp is poor in battery fixing firmness, the battery has the rotating risk, the battery deviation rectifying operation difficulty is large, and the deviation rectifying success degree is low are effectively solved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery liquid injection fixture and liquid injection equipment. Background Art

[0002] With the advent of the electronic intelligent era, people's demand for electronic products is also increasing. Among them, batteries that provide power for electronic products have become the focus of research. Batteries mainly rely on electrolytes to conduct ions, so that batteries have the advantages of high energy, high operating voltage, wide operating temperature range, small size, light weight and long storage life. Therefore, the process of injecting electrolyte into the battery shell is a necessary process in the production process of lithium-ion batteries.

[0003] In the related art, the liquid injection fixture usually fixes the battery by vacuum adsorption on the bottom of the battery. On the one hand, since a process boss is set at the bottom of the battery during production, the process boss will reduce the vacuum adsorption area and affect the reliability of the vacuum adsorption fixation method; on the other hand, since the side wall of the battery is not subjected to force, there is a risk of rotation. If the liquid injection hole on the battery is not in the center of the battery, the rotation will cause the liquid injection hole to be misplaced. Before liquid injection, the battery needs to be visually corrected in space to ensure that the liquid injection holes are consistent. However, the correction operation is difficult and has a high risk of failure. Summary of the invention

[0004] The present application provides a battery liquid injection fixture and liquid injection equipment to solve the technical problems that the traditional liquid injection fixture has poor fixing reliability on the battery, the risk of battery rotation, the difficulty of battery correction operation and the low success rate of correction.

[0005] To this end, on the first aspect, an embodiment of the present application provides a battery filling fixture, which includes: a jig platform having a height direction; a positioning assembly, which is arranged on the jig platform, the positioning assembly including a positioning piece and a first elastic piece, the positioning piece is provided with a positioning groove and a first avoidance notch, the positioning groove extends along the height direction, the first avoidance notch is adjacent to a portion of the positioning groove, and the first elastic piece is protruded in the positioning groove along the radial direction of the positioning groove; and a clamping assembly, which is movably arranged on the jig platform corresponding to the first avoidance notch, and the clamping assembly approaches or moves away from the first avoidance notch to tighten or loosen the battery accommodated in the positioning groove.

[0006] In a possible embodiment, the positioning member includes a first positioning portion and a second positioning portion arranged on a side of the first positioning portion away from the jig platform, the first positioning portion is provided with a first groove body, the second positioning portion is provided with a second half groove, the first groove body is connected to the second half groove to form a positioning groove, and the first avoidance notch corresponds to the second half groove.

[0007] In a possible implementation, two first elastic members are provided, and the two first elastic members are located in the same horizontal plane, wherein one first elastic member is provided on the inner wall of the first slot body below the first avoidance notch, and the other first elastic member is provided on the inner wall of the first slot body below the second half slot; or,

[0008] A plurality of first elastic members are provided, and the plurality of first elastic members are evenly distributed on the inner wall of the first slot body along the circumference of the first slot body.

[0009] In a possible implementation manner, the first avoidance notch penetrates the positioning groove along the height direction.

[0010] In a possible implementation, a first flow channel groove is provided on the fixture platform, the first flow channel groove is provided on the same side as the positioning component, and is distributed on the fixture platform avoiding the positioning component; and / or,

[0011] A second flow channel groove is arranged in the positioning groove, and the second flow channel groove avoids the first elastic member and is distributed on the inner wall surface of the positioning groove.

[0012] In a possible implementation, the clamping assembly includes a driving member, a clamping member, and a second elastic member, the clamping member is connected to the output end of the driving member through the second elastic member, and can be moved closer to or farther from the first avoidance gap through the driving member;

[0013] Alternatively, the clamping assembly includes a driving member, a clamping member and a second elastic member, and a flexible layer is provided on one side of the clamping member facing the positioning groove and is connected to an output end of the driving member through the second elastic member.

[0014] In a possible embodiment, the fixture platform has a first direction, the positioning assembly includes a positioning seat, and the positioning seat is provided with a plurality of positioning members spaced apart along the first direction; the clamping assembly also includes a first connecting member, and the first connecting member is provided with a plurality of clamping members spaced apart along the first direction, one clamping member corresponds to one positioning member, and the output end of the driving member is connected to the first connecting member.

[0015] In a possible embodiment, the fixture platform has a second direction, the straight line where the second direction is located is set at an angle with the straight line where the first direction is located, a plurality of positioning seats are provided, and the plurality of positioning seats are distributed at intervals along the second direction; a plurality of first connecting members are provided, and one first connecting member corresponds to one positioning seat.

[0016] In a possible implementation, the clamping assembly further includes a second connecting member extending along the second direction, and a plurality of first connecting members are spaced apart and distributed on the second connecting member along the second direction; and an output end of the driving member is connected to the second connecting member.

[0017] In a possible implementation, two second connecting members are provided, the two second connecting members are spaced apart along the first direction, and two ends of the first connecting member are respectively connected to the two second connecting members.

[0018] In a possible embodiment, the clamping assembly also includes a connecting rod, a slider and a slide rail, the two ends of the connecting rod are respectively connected to the ends of two second connecting members, the slide rail is arranged on the fixture platform and extends along the second direction, the second connecting member is connected to the slide rail through the slider, and the output end of the driving member is connected to the connecting rod.

[0019] In a possible implementation, a locking assembly is further included. The locking assembly is disposed on the fixture platform and is located outside the positioning assembly and the clamping assembly. The locking assembly is used to support and lock the liquid cup tray assembly located above the positioning assembly.

[0020] In a possible embodiment, the locking assembly includes a third connecting member and a snap-in member, the third connecting member extends along the second direction of the jig platform, the snap-in member is arranged on a side of the third connecting member away from the jig platform, and the snap-in member is used to snap into engagement with a slot on the liquid cup tray assembly.

[0021] In a possible embodiment, the clamping member includes a fixed seat, a buckle, a rotating shaft and a third elastic member. The fixed seat is arranged on the third connecting member. The fixed seat is provided with a groove extending in the height direction. The rotating shaft is horizontally arranged in the groove. The buckle is rotatably connected to the fixed seat through the rotating shaft. The part of the buckle accommodated in the groove is connected to the corresponding fixed seat through the third elastic member, and the part of the buckle extending out of the groove is buckled with the slot on the liquid cup tray assembly.

[0022] In a possible embodiment, a connecting ear is provided on a side of the fixing seat away from the third connecting member, and the clip also includes a handle and a limiting column. The handle is rotatably connected to the fixing seat via the connecting ear, and the handle is provided with a second avoidance notch facing the buckle. The limiting column is provided in the second avoidance notch, and the buckle is provided with a limiting groove corresponding to the limiting column.

[0023] In a possible implementation, the locking assembly further includes a guide member, which is disposed close to the clamping member on a side of the third connecting member away from the fixture platform, and cooperates with a guide sleeve on the liquid cup tray assembly.

[0024] In a possible implementation, the locking assembly further includes a fourth connecting member and a buffer member, the buffer member is connected to the guide member via the fourth connecting member, and the buffer member cooperates with the top connection column on the liquid cup tray assembly.

[0025] On the second aspect, the present application also provides a liquid filling device, including the battery liquid filling fixture as described above and a liquid cup tray assembly arranged above the battery liquid filling fixture, the liquid cup tray assembly is provided with a liquid filling nozzle facing the battery liquid filling fixture, and the liquid filling nozzle is connected to the liquid filling hole of the battery accommodated in the positioning groove of the battery liquid filling fixture.

[0026] In a possible embodiment, the liquid cup tray assembly includes a tray, a fastener and a first adjusting member, the tray is arranged above the battery filling fixture, the first adjusting member is arranged on the side of the tray away from the battery filling fixture, the length of the first adjusting member in the height direction of the fixture platform of the battery filling fixture is different, the fastener is arranged on the side of the first adjusting member away from the tray, and the fastener is provided with a slot that is engaged with the connecting member of the battery filling fixture.

[0027] In a possible implementation, the liquid cup tray assembly further includes a liquid cup fixing member and a second adjusting member, wherein the liquid cup fixing member is movably disposed on a side of the tray away from the battery filling fixture, and the second adjusting member is disposed on the tray for adjusting the position of the liquid cup fixing member on the tray.

[0028] According to the battery filling fixture and filling equipment provided in the embodiments of the present application, the battery filling fixture includes: a fixture platform having a height direction; a positioning assembly, arranged on the fixture platform, the positioning assembly includes a positioning piece and a first elastic piece, the positioning piece is provided with a positioning groove and a first avoidance gap, the positioning groove extends along the height direction, the first avoidance gap is adjacent to a portion of the positioning groove, and the first elastic piece is convexly arranged in the positioning groove along the radial direction of the positioning groove; and a clamping assembly, movably arranged on the fixture platform corresponding to the first avoidance gap, the clamping assembly approaches or moves away from the first avoidance gap to tighten or loosen the battery accommodated in the positioning groove. In the technical solution of the present application, a first elastic member is protruded in the positioning groove of the positioning member, so as to pre-tighten the battery inserted into the positioning groove through the first elastic member, at least to limit the freedom of the battery on its bottom wall and peripheral side wall, so as to achieve the initial fixation and locking of the battery; at the same time, a first avoidance notch adjacent to a part of the positioning groove is provided on the positioning member, so as to avoid the clamping assembly through the first avoidance notch, so as to facilitate the clamping assembly to press against the outer wall of the battery corresponding to the missing part of the positioning groove, so as to at least limit the freedom of the battery in the force application direction of the clamping assembly, and further improve the position stability of the battery; and, the pre-tightening force of the first elastic member and the pressing force of the clamping assembly can also be used to effectively prevent the battery from rotating, and further improve the fixation reliability of the battery. In addition, different pre-tightening forces can be provided to batteries of different sizes through the first elastic member, so that the positioning member is suitable for batteries of different sizes within the tolerance range, and the application range of the battery filling fixture is improved. Compared with the traditional liquid injection clamp that achieves clamping and fixing by vacuum adsorbing the bottom of the battery, the battery liquid injection clamp provided in the present application only needs to limit the top of the battery during liquid injection after clamping the battery, and there is no need to perform spatial visual correction before liquid injection, which simplifies the battery filling process and reduces the difficulty of liquid injection; in addition, the consistency of the liquid injection hole and its alignment accuracy with the liquid injection nozzle are high, the liquid injection accuracy is high, the liquid injection operation is simple, and the liquid injection efficiency and injection effect are effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments that conform to the present application, and are used together with the specification to explain the principles of the present application. In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can also be obtained based on these drawings without paying creative labor. One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplified descriptions do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute a proportional limitation.

[0030] Figure 1 A schematic diagram of the three-dimensional structure of a battery liquid injection fixture provided in an embodiment of the present application;

[0031] Figure 2 for Figure 1 A schematic diagram of a three-dimensional structure from another perspective;

[0032] Figure 3 A schematic diagram of the three-dimensional structure of a positioning seat of a battery liquid injection fixture provided in an embodiment of the present application;

[0033] Figure 4 for Figure 3 A schematic diagram of a three-dimensional structure from another perspective;

[0034] Figure 5 A schematic diagram of the three-dimensional structure of a positioning assembly of a battery liquid injection fixture provided in an embodiment of the present application;

[0035] Figure 6 A schematic diagram of the three-dimensional structure of a clamping assembly of a battery liquid filling fixture provided in an embodiment of the present application;

[0036] Figure 7 for Figure 1 The enlarged view of point A in the middle;

[0037] Figure 8 for Figure 6 The enlarged view of point B in the middle;

[0038] Fig. 9 A front view of a locking assembly of a battery filling fixture provided in an embodiment of the present application;

[0039] Fig.10 An exploded view of a clamping member of a locking assembly of a battery filling fixture provided in an embodiment of the present application;

[0040] Fig.11 A schematic diagram of the three-dimensional structure of the liquid injection device provided in an embodiment of the present application;

[0041] Fig.12 for Fig.11 Enlarged view of point C in the middle;

[0042] Fig.13 A schematic diagram of the three-dimensional structure of a liquid injection device from another perspective provided in an embodiment of the present application;

[0043] Fig.14 for Fig.13 The enlarged view of point D in the middle;

[0044] Fig.15 A front view of the liquid injection device provided in an embodiment of the present application.

[0045] Description of reference numerals:

[0046] 100. fixture platform; 101. first flow channel groove;

[0047] 200, positioning assembly; 201, positioning groove; 202, first avoidance gap; 203, second flow channel groove; 210, positioning member; 211, first positioning portion; 212, second positioning portion; 220, first elastic member; 230, positioning seat;

[0048] 300, clamping assembly; 310, clamping member; 320, first connecting member; 330, second connecting member; 340, connecting rod; 350, sliding block; 360, sliding rail;

[0049] 400, locking assembly; 410, third connecting member; 420, clamping member; 421, fixing seat; 422, buckle; 4221, limiting groove; 423, rotating shaft; 424, handle; 4241, second avoidance gap; 425, limiting column; 430, guide member; 440, fourth connecting member; 450, buffer member;

[0050] 10. Liquid cup tray assembly; 11. Liquid injection nozzle; 12. Tray; 13. Fastener; 14. First adjustment member; 15. Liquid cup fixing member; 16. Second adjustment member;

[0051] Z, height direction; X, first direction; Y, second direction;

[0052] 1. Battery. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0054] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed in itself. In addition, the various specific processes and examples of materials provided by the present application, but those of ordinary skill in the art can appreciate the applicability of other processes and / or the use of other materials.

[0055] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0056] See also Figures 1 to 10 The embodiment of the present application provides a battery liquid injection fixture, which includes: a fixture platform 100, having a height direction Z; a positioning assembly 200, which is arranged on the fixture platform 100, and the positioning assembly 200 includes a positioning member 210 and a first elastic member 220, and the positioning member 210 is provided with a positioning groove 201 and a first avoidance gap 202, the positioning groove 201 extends along the height direction Z, the first avoidance gap 202 is adjacent to a part of the positioning groove 201, and the first elastic member 220 is protruded in the positioning groove 201 along the radial direction of the positioning groove 201; and a clamping assembly 300, which is movably arranged on the fixture platform 100 corresponding to the first avoidance gap 202, and the clamping assembly 300 approaches or moves away from the first avoidance gap 202 to tighten or loosen the battery 1 accommodated in the positioning groove 201.

[0057] In this embodiment, a first elastic member 220 is protruded in the positioning groove 201 of the positioning member 210, so that the battery 1 inserted into the positioning groove 201 can be pre-tightened by the first elastic member 220, at least to achieve the restriction of the freedom of the battery 1 on its bottom wall and the surrounding side wall, thereby achieving the preliminary fixation and locking of the battery 1; at the same time, a first avoidance notch 202 adjacent to a portion of the positioning groove 201 is provided on the positioning member 210, so that the clamping assembly 300 can be avoided by the first avoidance notch 202, so that the clamping assembly 300 can be pressed against the outer wall of the battery 1 corresponding to the missing part of the positioning groove 201, at least to achieve the restriction of the freedom of the battery 1 in the force application direction of the clamping assembly 300, thereby further improving the position stability of the battery 1; and, the pre-tightening force of the first elastic member 220 and the pressing force of the clamping assembly 300 can effectively prevent the battery 1 from rotating, thereby further improving the fixation reliability of the battery 1. In addition, different preload forces can be provided to batteries 1 of different sizes through the first elastic member 220, so that the positioning member 210 is suitable for batteries 1 of different sizes within the tolerance range, thereby improving the applicable scope of the battery filling fixture. Compared with the traditional filling fixture that achieves clamping and fixing by vacuum adsorbing the bottom of the battery 1, the battery filling fixture provided by the present application only needs to limit the top of the battery 1 during filling after clamping the battery 1, and there is no need to perform spatial visual correction before filling, which simplifies the filling process of the battery 1 and reduces the difficulty of filling; and the consistency of the filling hole and its alignment accuracy with the filling nozzle 11 are high, the filling accuracy is high, and the filling operation is simple, which effectively improves the filling efficiency and filling effect.

[0058] Specifically, the battery filling fixture is configured as a combination component including at least a fixture platform 100, a positioning component 200 and a clamping component 300. The fixture platform 100 can be a double-layer composite platform. The two-layer platform can be moved relative to each other through a driving member such as a cylinder or a motor, thereby driving the positioning component 200 and the clamping component 300 and other components arranged thereon to move synchronously, so as to achieve the synchronous movement of multiple batteries 1 accommodated and fixed between the positioning component 200 and the clamping component 300, and realize the horizontal position adjustment of the battery 1. The positioning assembly 200 is configured as a combined component including at least a positioning member 210 and a first elastic member 220. The positioning member 210 can be a block structure with a positioning groove 201 formed thereon. The positioning groove 201 is formed from the top of the positioning member 210 to the bottom thereof, and is used to accommodate the battery 1 and at least limit the bottom position of the battery 1. The first elastic member 220 can be a spring, which can be laterally convexly arranged in the positioning groove 201, so as to elastically abut against the outer wall of the battery 1 after the battery 1 is inserted, so as to realize pre-tightening of the battery 1 and prevent the battery 1 from being stuck in the positioning groove 201. In addition, the elastic preload force of the first elastic member 220 can also be used to clamp batteries 1 of different sizes. For example, when the radial dimension of the battery 1 is larger, the compression degree of the first elastic member 220 is greater, so as to provide the battery 1 with a larger receiving space and preload force in the radial direction; when the radial dimension of the battery 1 is smaller, the compression degree of the first elastic member 220 is smaller, so as to provide the battery 1 with a smaller receiving space and preload force in the radial direction, thereby preloading batteries 1 of different sizes within the tolerance range and improving the application range of the battery filling fixture. The clamping assembly 300 can be a movable clamping block, which can move toward the direction close to the positioning groove 201 to press against the corresponding outer wall of the battery 1, thereby compensating for the lack of force restraint on the battery 1 at the first notch, and further enhancing the fixation reliability of the battery 1; or, it can move in the direction away from the positioning groove 201 to loosen the force restraint on the battery 1. At this time, the battery 1 can be rotated and taken out in the positioning groove 201; it can be understood that the clamping assembly 300 and the positioning groove 201 corresponding to the first notch form a set of clamping forces, which can at least achieve clamping restraint on the battery 1 in this degree of freedom.

[0059] like Figure 3 and Figure 4 As shown, in a possible embodiment, the positioning member 210 includes a first positioning portion 211 and a second positioning portion 212 arranged on the side of the first positioning portion 211 away from the fixture platform 100, the first positioning portion 211 is provided with a first groove body, the second positioning portion 212 is provided with a second half groove, the first groove body is connected to the second half groove to form a positioning groove 201, and the first avoidance notch 202 corresponds to the second half groove.

[0060] In this embodiment, the specific configuration of the positioning member 210 is optimized. Specifically, the positioning member 210 is configured as a combined component including at least a first positioning portion 211 and a second positioning portion 212. The first positioning portion 211 can be a block structure, on which a first columnar slot body is provided. The first slot body can at least accommodate the bottom of the battery 1 and wrap the peripheral side wall near the bottom of the battery 1. The second positioning portion 212 can be a block structure, which is arranged above the first positioning portion 211 to form a positioning member 210 that is split into upper and lower parts; a second half slot is provided on the second positioning portion 212, and compared with the first slot body, the second half slot is missing, and the missing part is the first avoidance notch 202; the second half slot can at least accommodate part of the peripheral side wall in front and behind the middle of the battery 1. In this way, the bottom of the battery 1, the peripheral side wall near the bottom and part of the peripheral side wall in the middle can be restricted by the positioning member 210. At this time, the clamping assembly 300 is used to press against the outer wall of the battery 1 corresponding to the first avoidance notch 202, and cooperate with the second half groove to achieve horizontal clamping of the battery 1 to prevent the battery 1 from rotating. The positioning member 210 provided in this example has a simple structure, is easy to process, and has a good positioning effect.

[0061] In one example, for the convenience of processing, the first positioning portion 211 and the second positioning portion 212 can be integrally formed to enhance the overall strength of the positioning member 210 and extend its service life. For example, the positioning member 210 can be processed by casting.

[0062] like Figure 3 and Figure 4 As shown, in a possible implementation, two first elastic members 220 are provided, and the two first elastic members 220 are located in the same horizontal plane, wherein one first elastic member 220 is provided on the inner wall of the first slot body below the first avoidance notch 202, and the other first elastic member 220 is provided on the inner wall of the first slot body below the second half slot. In this example, two first elastic members 220 are provided to pre-tighten and fix the battery 1, the number of first elastic members 220 used is small, and the production cost of the positioning member 210 is low.

[0063] In a possible implementation, a plurality of first elastic members 220 are provided, and the plurality of first elastic members 220 are evenly distributed on the inner wall of the first slot body along the circumference of the first slot body. In this example, the plurality of first elastic members 220 arranged circumferentially increase the pre-tightening force of the battery 1, and the pre-tightening and fixing effect of the battery 1 is better.

[0064] In a possible implementation, the first avoidance notch 202 passes through the positioning groove 201 along the height direction Z. In this example, a longitudinal opening is opened on the positioning groove 201 to form the first avoidance notch 202; and then the longitudinally extending clamping assembly 300 is used to press and clamp the longitudinal side wall of the battery 1 corresponding to the first avoidance notch 202, thereby increasing the longitudinal contact area between the clamping assembly 300 and the battery 1, enhancing the clamping force of the clamping assembly 300 on the battery 1, and improving the fixing reliability of the battery 1; in addition, by increasing the longitudinal contact area between the clamping assembly 300 and the battery 1, the abutment force of the clamping assembly 300 on the battery 1 can also be distributed in the height direction Z, so that the battery 1 is evenly stressed and the clamping stability of the battery 1 is improved. For example, but not limited to, the abutment surface of the clamping assembly 300 facing the positioning groove 201 is a concave groove extending along the height direction Z, and the concave groove matches the longitudinal side wall of the battery 1.

[0065] In a possible implementation, two or more first elastic members 220 are provided, and the two or more first elastic members 220 are evenly distributed on the inner wall of the positioning groove 201 along the circumference of the positioning groove 201. In this example, the pre-tightening force of the battery 1 is increased by the two or more first elastic members 220 arranged circumferentially, thereby improving the pre-tightening and fixing effect of the battery 1.

[0066] like Figure 1 As shown, in a possible embodiment, a first flow channel 101 is provided on the fixture platform 100, and the first flow channel 101 is arranged on the same side as the positioning component 200, and is distributed on the fixture platform 100 away from the positioning component 200. In this way, the electrolyte spilled on the fixture platform 100 is collected and diverted through the first flow channel 101, so as to prevent the electrolyte from reacting on the fixture platform 100 to produce hydrofluoric acid or crystallizing in water, thereby damaging the fixture platform 100, affecting the moving effect of the clamping component 300 on the fixture platform 100, improving the precise displacement of the clamping component 300, and improving the precise clamping of the battery 1.

[0067] like Figure 5 As shown, in a possible implementation, a second flow channel groove 203 is provided in the positioning groove 201, and the second flow channel groove 203 avoids the first elastic member 220 and is distributed on the inner wall surface of the positioning groove 201. In this way, the electrolyte spilled in the positioning groove 201 is collected and guided out through the second flow channel, and the electrolyte is prevented from crystallizing when encountering water in the positioning groove 201, so that the positioning groove 201 is in good contact with the outer wall of the battery 1, and the restraining effect of the battery 1 is improved.

[0068] like Figures 6 to 8As shown, in a possible embodiment, the clamping assembly 300 includes a driving member (not shown in the figure), a clamping member 310 and a second elastic member (not shown in the figure), the clamping member 310 is connected to the output end of the driving member through the second elastic member, and can be moved close to or away from the first avoidance gap 202 through the driving member.

[0069] In this embodiment, the specific configuration of the clamping assembly 300 is optimized. Specifically, the clamping assembly 300 is configured as a composite member including at least a driving member, a clamping member 310 and a second elastic member. The driving member can be a cylinder or a motor, which can be arranged on the fixture platform 100. The clamping member 310 can be a boat-shaped clamping block, and its side facing the positioning groove 201 is a boat-shaped concave surface to facilitate the lateral clamping of the outer wall of the battery 1. The second elastic member can be a spring, which is arranged between the clamping member 310 and the output end of the driving member to provide an elastic buffering force to the clamping member 310, to prevent the clamping member 310 from rigidly abutting against the battery 1 and crushing the battery 1, and to enhance the protection of the battery 1.

[0070] In a possible implementation, the clamping assembly 300 includes a driving member, a clamping member 310 and a second elastic member. A flexible layer (not shown) is provided on the side of the clamping member 310 facing the positioning groove 201, and is connected to the output end of the driving member through the second elastic member. In this way, the clamping member 310 can flexibly contact the outer wall of the battery 1, thereby minimizing the pressure of the clamping member 310 on the outer wall of the battery 1 and improving the protection of the battery 1. For example, but not limited to, the flexible layer can be a fluororubber sheet.

[0071] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, in a possible embodiment, the fixture platform 100 has a first direction X, the positioning assembly 200 includes a positioning seat 230, and the positioning seat 230 is provided with a plurality of positioning members 210 spaced apart along the first direction X; the clamping assembly 300 also includes a first connecting member 320, and the first connecting member 320 is provided with a plurality of clamping members 310 spaced apart along the first direction X, one clamping member 310 corresponds to one positioning member 210, and the output end of the driving member is connected to the first connecting member 320.

[0072] This embodiment provides a battery filling fixture that can fix multiple batteries 1 in a single row or multiple batteries 1 in a single column. A plurality of positioning members 210 are arranged at intervals in the first direction X of the positioning seat 230. At the same time, a plurality of clamping members 310 are arranged at intervals in the first direction X of the first connecting member 320. One clamping member 310 corresponds to one positioning member 210, so that each clamping member 310 can clamp the battery 1 located in the positioning groove 201 of the corresponding positioning member 210, thereby achieving simultaneous clamping and fixing of multiple batteries 1 in a single row or a single column, thereby improving the clamping efficiency. The battery filling fixture provided in this example has a simple structure, high clamping and fixing efficiency, and high filling efficiency.

[0073] It should be explained that the first direction X is a horizontal direction, and the straight line where the first direction X lies is perpendicular to the straight line where the height direction Z lies.

[0074] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, in a possible embodiment, the fixture platform 100 has a second direction Y, the straight line where the second direction Y is located is set at an angle with the straight line where the first direction X is located, a plurality of positioning seats 230 are provided, and the plurality of positioning seats 230 are distributed at intervals along the second direction Y; a plurality of first connecting members 320 are provided, and one first connecting member 320 corresponds to one positioning seat 230.

[0075] This embodiment provides a battery filling fixture that can fix multiple batteries 1 distributed in a matrix. Multiple positioning seats 230 are arranged at intervals in the second direction Y. At the same time, multiple first connectors 320 are arranged in the second direction Y, and one first connector 320 corresponds to one positioning seat 230, so that multiple columns and rows of batteries 1 can be clamped and fixed by the simultaneous cooperation of multiple first connectors 320 and multiple positioning seats 230, thereby improving the clamping efficiency. The battery filling fixture provided in this example has a simple structure, high clamping and fixing efficiency, and high filling efficiency.

[0076] It should be explained that the second direction Y is a horizontal direction, the straight line on which it is located is set at an angle with the straight line on which the first direction X is located, and the straight line on which the height direction Z is located is perpendicular to both the straight line on which the first direction X is located and the straight line on which the second direction Y is located. For example but not limited to, the straight line on which the first direction X is located, the straight line on which the second direction Y is located, and the straight line on which the height direction Z is located are perpendicular to each other.

[0077] like Figure 6 As shown, in a possible implementation, the clamping assembly 300 further includes a second connecting member 330 extending along the second direction Y, and a plurality of first connecting members 320 are spaced apart and distributed on the second connecting member 330 along the second direction Y; the output end of the driving member is connected to the second connecting member 330 .

[0078] In this embodiment, the specific configuration of the clamping assembly 300 is optimized. Specifically, the clamping assembly 300 is configured as a composite member including at least a plurality of first connecting members 320, a driving member, a plurality of clamping members 310 and a second connecting member 330. The second connecting member 330 can be a connecting rod, which is arranged on the same side of the plurality of first connecting members 320. The second connecting member 330 can be driven to move by the driving member to drive the plurality of first connecting members 320 connected to the second connecting member 330 to move simultaneously, thereby achieving simultaneous clamping and fixing of the array-distributed batteries 1, and improving the clamping efficiency; and the plurality of first connecting members 320 share one driving member, which can effectively reduce the investment in the driving member and reduce the cost.

[0079] like Figure 6 As shown, in a possible embodiment, two second connectors 330 are provided, and the two second connectors 330 are spaced apart along the first direction X, and the two ends of the first connector 320 are respectively connected to the two second connectors 330. In this example, one end of a plurality of first connectors 320 is respectively connected to one of the second connectors 330, and the other ends of the plurality of first connectors 320 are respectively connected to another second connector 330 to form a ladder structure. At this time, by driving the second connectors 330 on both sides to move synchronously, the plurality of first connectors 320 connected therein are driven to move, and the movement stability is stronger. Compared with the single-sided drive, the double-sided drive mode provided in this example can make the alignment accuracy of the clamping member 310 on the first connector 320 and the first avoidance gap 202 higher, and the clamping stability of the battery 1 is stronger.

[0080] like Figure 6 and Figure 8 As shown, in a possible embodiment, the clamping assembly 300 also includes a connecting rod 340, a slider 350 and a slide rail 360, the two ends of the connecting rod 340 are respectively connected to the ends of the two second connecting members 330, the slide rail 360 is arranged on the fixture platform 100 and extends along the second direction Y, the second connecting member 330 is connected to the slide rail 360 through the slider 350, and the output end of the driving member is connected to the connecting rod 340.

[0081] In this embodiment, the specific configuration of the clamping assembly 300 is further optimized. Specifically, the clamping assembly 300 is configured as a composite component including at least a plurality of first connecting members 320, a driving member, a plurality of clamping members 310, two second connecting members 330, a connecting rod 340, a slider 350 and a slide rail 360. The connecting rod 340 may be a rod-shaped structure, and its two ends may be connected to the ends of the two second connecting members 330 respectively by fasteners such as screws / bolts. The connecting rod 340 is parallel to the first connecting member 320. In this way, the second connecting members 330 on both sides may be driven simultaneously by setting a driving member, thereby achieving simultaneous driving of a plurality of first connecting members 320, reducing the number of driving members and reducing costs. The slide rail 360 can be a linear rail, which is configured on the fixture platform 100; the slider 350 can be slidably connected to the slide rail 360 through a slide groove, and the second connecting member 330 is arranged above the slider 350. In this way, when the connecting rod 340 drives the second connecting member 330 to move, the second connecting member 330 drives the slider 350 to slide synchronously on the slide rail 360, which is conducive to reducing the sliding friction between the second connecting member 330 and the fixture platform 100, improving the smoothness of the movement of the second connecting member 330, and facilitating the operation of the operator. The clamping assembly 300 provided in this example is easy to move, has strong smoothness, and has stronger stability.

[0082] In one example, both ends of the connecting rod 340 can be connected to the ends of the second connecting member 330 respectively through a transfer block, so as to enhance the rigidity of the connection between the connecting rod 340 and the second connecting member 330 and enhance the firmness of the connection between the two.

[0083] like Figure 1 and Figure 2 As shown, in one example, the positioning assembly 200 and the clamping assembly 300 form a rectangular positioning space on the jig platform 100, and four slide rails 360-slider blocks 350 are provided, which are respectively provided at the four corners on the outside of the rectangular positioning space, so that the four ends of the two second connecting members 330 are respectively slidably connected to the jig platform 100 through the four slide rails 360-slider blocks 350. Through the mode of local sliding connection, the space occupied by the slide rails 360 on the jig platform 100 can be reduced. In this way, the smoothness of the movement of the clamping assembly 300 and the jig platform 100 and the convenience of the movement of the clamping assembly 300 can be improved, and the space occupied by the clamping assembly 300 can be saved, thereby improving the compactness of the layout of the battery filling fixture and facilitating miniaturization.

[0084] like Fig. 9As shown, in a possible embodiment, a locking assembly 400 is further included. The locking assembly 400 is disposed on the fixture platform 100 and is located on the outside of the positioning assembly 200 and the clamping assembly 300. The locking assembly 400 is used to support and lock the liquid cup tray assembly 10 located above the positioning assembly 200.

[0085] In this embodiment, the specific configuration of the battery liquid injection fixture is further optimized. Specifically, the battery liquid injection fixture is configured as a combination component including at least a fixture platform 100, a positioning component 200, a clamping component 300 and a locking component 400. The locking component 400 can be a buckle 422 structure, which can be connected to the fixture platform 100 by fasteners such as screws / bolts; the top of the locking component 400 extends out of the fixing component and the clamping component 300, which is used to lock the liquid cup tray component 10 located above the positioning component 200. On the one hand, it is used to fix the height position of the liquid cup tray component 10 to facilitate liquid injection; on the other hand, the liquid cup tray component 10 is used to limit the top of the battery 1 accommodated in the positioning groove 201, thereby completing the position limitation of the battery 1 in at least two horizontal directions, vertical directions, horizontal rotation and other 8 degrees of freedom, improving the fixing reliability of the battery 1, improving the position accuracy of the liquid injection hole on the battery 1, improving the liquid injection accuracy, and improving the liquid injection effect.

[0086] like Fig. 9 and Fig.10 As shown, in a possible embodiment, the locking assembly 400 includes a third connecting member 410 and a snap-in member 420, the third connecting member 410 extends along the second direction Y of the jig platform 100, the snap-in member 420 is arranged on a side of the third connecting member 410 away from the jig platform 100, and the snap-in member 420 is used to snap into engagement with a slot on the liquid cup tray assembly 10.

[0087] In this embodiment, the specific configuration of the locking assembly 400 is optimized. Specifically, the locking member is configured as a combined component including at least a third connecting member 410 and a clamping member 420. The third connecting member 410 can be a nearly rectangular long box structure, which can be connected to the fixture platform 100 by welding / adhesion, etc. A handle can be provided on the third connecting member 410 to facilitate assembly and disassembly. The clamping member 420 can be a buckle, the bottom of which can be connected to the third connecting member 410 by welding, etc., and the top of which extends out of the positioning assembly 200 and the clamping assembly 300 to buckle with the upper liquid cup tray assembly 10. The locking assembly 400 provided in this example has a simple structure and is easy to process.

[0088] like Fig. 9 and Fig.10As shown, in a possible embodiment, the clamping member 420 includes a fixed seat 421, a buckle 422, a rotating shaft 423 and a third elastic member (not shown in the figure), the fixed seat 421 is arranged on the third connecting member 410, and the fixed seat 421 is provided with a groove extending along the height direction Z, the rotating shaft 423 is horizontally arranged in the groove, the buckle 422 is rotatably connected to the fixed seat 421 through the rotating shaft 423, the part of the buckle 422 accommodated in the groove is connected to the corresponding fixed seat 421 through the third elastic member, and the part of the buckle 422 extending out of the groove is buckled with the slot on the liquid cup tray assembly 10.

[0089] In this embodiment, the specific configuration of the clamping member 420 is optimized. Specifically, the clamping member 420 is configured as a composite member including at least a fixed seat 421, a buckle 422, a rotating shaft 423 and a third elastic member. The fixed seat 421 can be a U-shaped frame with a groove on the front side, and its top end is inclined. The height of the fixed seat 421 on the front side is less than that of the fixed seat 421 on the rear side. The fixed seat 421 can be used to support and integrate the buckle 422, the rotating shaft 423 and the third elastic member. The rotating shaft 423 can be a columnar shaft, which is mounted on the top of the groove and has a certain distance from the bottom of the groove. The buckle 422 can be a long plate with a transfer ear, and the buckle 422 is sleeved on the rotating shaft 423 through the transfer ear and can rotate around the rotating shaft 423; the top end of the buckle 422 extends out of the fixed seat 421 and has a back hook, which can hook the slot on the liquid cup tray assembly 10 to achieve the locking and fixing of the clamping member 420 and the liquid cup tray assembly 10. The third elastic member may be a spring, one end of which abuts against the bottom wall of the groove on the fixing seat 421, and the other end abuts against the corresponding buckle 422, so as to realize the elastic connection between the buckle 422 below the rotating shaft 423 and the fixing seat 421; when the top end of the buckle 422 is engaged in the slot, the third elastic member provides an outward flipping elastic force to the lower end of the buckle 422, and the outward flipping elastic force can further press the upper end of the buckle 422 in the slot, thereby enhancing the connection tightness between the buckle 422 and the liquid cup tray assembly 10. The layout of the clamping member 420 provided in this example is compact, the tightness is strong, and the clamping connection of the liquid cup tray assembly 10 is tight.

[0090] like Fig.10 As shown, in a possible embodiment, a connecting ear is provided on the side of the fixed seat 421 away from the third connecting member 410, and the clamping member 420 also includes a handle 424 and a limiting column 425. The handle 424 is rotatably connected to the fixed seat 421 through the connecting ear, and the handle 424 is provided with a second avoidance gap 4241 facing the buckle 422. The limiting column 425 is arranged in the second avoidance gap 4241, and the buckle 422 is provided with a limiting groove 4221 corresponding to the limiting column 425.

[0091] In this embodiment, the specific configuration of the clamping member 420 is further optimized. Specifically, the clamping member 420 is configured as a composite member including at least a fixed seat 421, a buckle 422, a rotating shaft 423, a third elastic member, a handle 424 and a limiting column 425. The handle 424 can be a nearly 7-shaped structure, which can be rotatably connected to the top of the fixed seat 421 through a connecting ear provided on the fixed seat 421; the handle 424 is provided with a second avoidance notch 4241 facing the buckle 422 at the corresponding connecting ear, and a limiting column 425 is provided at the second avoidance notch 4241. The limiting column 425 can change position as the handle 424 rotates, so as to be clamped into the limiting groove 4221 on the buckle 422 when rotating downward, so as to enhance the position restriction of the buckle 422 and improve the locking force of the buckle 422; or move out of the limiting groove 4221 when rotating downward to release the locking of the buckle 422. The clamping member 420 provided in this example is convenient for operators to operate, and the locking force between the locking assembly 400 and the liquid cup tray assembly 10 is stronger.

[0092] like Fig. 9 As shown, in a possible embodiment, the locking assembly 400 further includes a guide member 430, which is disposed near the clamping member 420 on a side of the third connecting member 410 away from the fixture platform 100, and the guide member 430 cooperates with a guide sleeve on the liquid cup tray assembly 10.

[0093] In this embodiment, the specific configuration of the locking assembly 400 is further optimized. Specifically, the locking member is configured as a composite member including at least a third connecting member 410, a clamping member 420 and a guide member 430. The guide member 430 may be a guide column, which is arranged on the third connecting member 410 along the height direction Z, and is used to cooperate with the guide sleeve on the liquid cup tray assembly 10 to achieve assembly guidance of the liquid cup tray assembly 10 and improve the assembly accuracy of the liquid cup tray assembly 10. In addition, the guide member 430 can cooperate with the clamping member 420, and the guide member 430 is arranged near the clamping member 420, so as to further enhance the precise clamping of the clamping member 420 to the liquid cup tray assembly 10 through the guide member 430, thereby improving the connection reliability.

[0094] like Fig. 9 As shown, in a possible implementation, the locking assembly 400 further includes a fourth connecting member 440 and a buffer member 450 . The buffer member 450 is connected to the guide member 430 via the fourth connecting member 440 , and the buffer member 450 cooperates with the top connection column on the liquid cup tray assembly 10 .

[0095] In this embodiment, the specific configuration of the locking assembly 400 is further optimized. Specifically, the locking member is configured as a composite member including at least a third connecting member 410, a clamping member 420, a guide member 430, a fourth connecting member 440 and a buffer member 450. The fourth connecting member 440 may be a plate-like structure, which is sleeved on the guide member 430 and extends toward the clamping member 420; the fourth connecting member 440 may be arranged on a side of the guide member 430 away from the third connecting member 410 to be closer to the liquid cup tray assembly 10. The buffer member 450 may be a stainless steel spring, which extends in the same direction as the guide member 430, and is used to provide an upward elastic buffer force to the liquid cup tray assembly 10, so as to prevent the liquid cup tray assembly 10 from being directly pressed on the clamping member 420 and the guide member 430, distribute and offset the abutment stress brought by the liquid cup tray assembly 10, and strengthen the protection of the liquid cup tray assembly 10, the clamping member 420 and the guide member 430.

[0096] In addition, if Figures 11 to 15 As shown, the present application also provides a liquid filling device, including the battery liquid filling fixture as described above and a liquid cup tray assembly 10 arranged above the battery liquid filling fixture, the liquid cup tray assembly 10 is provided with a liquid filling nozzle 11 facing the battery liquid filling fixture, and the liquid filling nozzle 11 is connected to the liquid filling hole of the battery 1 accommodated in the positioning groove 201 of the battery liquid filling fixture.

[0097] In this embodiment, the liquid injection device is configured as a liquid injection device that at least includes a battery liquid injection clamp and a liquid cup tray assembly 10. On the one hand, the liquid injection device can realize pre-tightening and fixing of the battery 1 through the positioning member 210 of the battery liquid injection clamp. At the same time, through the mutual cooperation of the positioning member 210 and the clamping assembly 300, the battery 1 is prevented from rotating, and the battery 1 is limited in multiple degrees of freedom, thereby improving the positioning accuracy of the battery 1 and the liquid injection hole thereon, which is beneficial to subsequent liquid injection; on the other hand, through the cooperation of the liquid cup tray assembly 10 and the locking assembly 400, the liquid cup tray assembly 10 can be accurately assembled, thereby improving the liquid injection accuracy and liquid injection effect. Compared with traditional liquid injection equipment, the liquid injection equipment provided by the present application only needs to limit the top of the battery 1 through the liquid cup tray assembly 10 during liquid injection, and there is no need to perform spatial visual correction operations before liquid injection, which simplifies the liquid injection process of the battery 1 and reduces the difficulty of liquid injection; and the consistency of the liquid injection hole and its alignment accuracy with the liquid injection nozzle 11 on the liquid cup tray assembly 10 are high, the liquid injection accuracy is high, the liquid injection operation is simple, and the liquid injection efficiency and liquid injection effect are effectively improved.

[0098] In addition, the liquid injection device can also provide different preload forces to batteries 1 of different sizes through the first elastic member 220, so that the positioning member 210 is suitable for batteries 1 of different sizes within the tolerance range, thereby improving the application range of the liquid injection device.

[0099] In addition, the specific structure of the battery liquid injection fixture refers to the above-mentioned embodiments. Since the present liquid injection device adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0100] like Figures 11 to 15 As shown, in a possible embodiment, the liquid cup tray assembly 10 includes a tray 12, a fastener 13 and a first adjusting member 14, the tray 12 is arranged above the battery filling fixture, the first adjusting member 14 is arranged on the side of the tray 12 away from the battery filling fixture, the length of the first adjusting member 14 in the height direction Z of the fixture platform 100 of the battery filling fixture is different, the fastener 13 is arranged on the side of the first adjusting member 14 away from the tray 12, and the fastener 13 is provided with a slot that is engaged with the connecting member 420 of the battery filling fixture.

[0101] In this embodiment, the specific configuration of the liquid cup tray assembly 10 is optimized. Specifically, the liquid cup tray assembly 10 is configured as a composite component including at least a tray 12, a fastener 13 and a first adjustment member 14. The tray 12 may be a plate-like structure, and its size is comparable to that of the fixture platform 100. A plurality of liquid injection nozzles 11 distributed in an array are arranged below the tray 12. The first adjustment member 14 may extend along the second direction Y of the fixture platform 100, and may be a ladder-like structure with multiple levels of bosses, each level of bosses corresponding to different heights. In this way, the fastener 13 may be arranged on different bosses of the first adjustment member 14 to achieve height adjustment between the tray 12 and the fixture platform 100, thereby achieving tightness adjustment between the liquid injection nozzle 11 and the liquid injection hole. The fastening member 13 may be a structural block with a slot, which is movably arranged on the first adjusting member 14, so that the connection position of the fastening member 13 and the first adjusting member 14 can be adjusted along the second direction Y, thereby realizing the height adjustment between the tray 12 and the fixture platform 100; the slot on the fastening member 13 faces the side away from the first adjusting member 14, so that the hook at the top of the snap-on member 420 can be fastened. The spacing between the liquid cup tray assembly 10 and the fixture platform 100 provided in this example is adjustable, and the alignment tightness between the liquid injection nozzle 11 and the liquid injection hole is adjustable, so that the liquid injection effect is better.

[0102] like Figures 11 to 15 As shown, in a possible embodiment, the liquid cup tray assembly 10 also includes a liquid cup fixing member 15 and a second adjusting member 16. The liquid cup fixing member 15 is movably arranged on a side of the tray 12 away from the battery filling fixture. The second adjusting member 16 is arranged on the tray 12 for adjusting the position of the liquid cup fixing member 15 on the tray 12.

[0103] In this embodiment, the specific configuration of the liquid cup tray assembly 10 is further optimized. Specifically, the liquid cup tray assembly 10 is configured as a composite component including at least a tray 12, a buckle 13, a first adjustment member 14, a liquid cup fixing member 15 and a second adjustment member 16. The liquid cup fixing member 15 can be a plate structure of liquid cups distributed in an integrated array, which is movably arranged in the central area of ​​the tray 12. The second adjustment member 16 can be an adjustment bolt, which can be connected to the edge of the tray 12 through an adjustment fixing seat 421 and connected to the liquid cup fixing member 15 through an adjustment block. In this way, the relative position of the adjustment block and the adjustment fixing seat 421 can be adjusted by rotating the position of the adjustment bolt, thereby adjusting the relative position of the liquid cup fixing member 15 and the tray 12, and realizing the position adjustment of multiple liquid injection nozzles 11 at the same time, thereby improving the liquid injection efficiency.

[0104] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0105] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0106] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A battery injection fixture, characterized in that: include: The fixture platform has a height orientation; A positioning assembly is arranged on the fixture platform, the positioning assembly includes a positioning member and a first elastic member, the positioning member is provided with a positioning groove and a first avoidance notch, the positioning groove extends along the height direction, the first avoidance notch is adjacent to a part of the positioning groove, and the first elastic member is convexly arranged in the positioning groove along the radial direction of the positioning groove; and The clamping assembly is movably arranged on the fixture platform corresponding to the first avoidance gap, and the clamping assembly approaches or moves away from the first avoidance gap to tighten or loosen the battery accommodated in the positioning groove.

2. The battery liquid injection fixture according to claim 1, characterized in that: The positioning member includes a first positioning portion and a second positioning portion arranged on a side of the first positioning portion away from the fixture platform, the first positioning portion is provided with a first groove body, the second positioning portion is provided with a second half groove, the first groove body is connected with the second half groove to form the positioning groove, and the first avoidance notch corresponds to the second half groove.

3. The battery liquid injection fixture according to claim 2, characterized in that: There are two first elastic members, and the two first elastic members are located in the same horizontal plane, one of the first elastic members is arranged on the inner wall of the first slot body below the first avoidance notch, and the other first elastic member is arranged on the inner wall of the first slot body below the second half slot; or, There are a plurality of first elastic members, and the plurality of first elastic members are evenly distributed on the inner wall of the first slot body along the circumference of the first slot body.

4. The battery liquid injection fixture according to claim 1, characterized in that: The first avoidance notch penetrates the positioning groove along the height direction.

5. The battery liquid injection fixture according to claim 1, characterized in that: The fixture platform is provided with a first flow channel groove, which is arranged on the same side as the positioning component and is distributed on the fixture platform avoiding the positioning component; and / or, A second flow channel groove is provided in the positioning groove, and the second flow channel groove is distributed on the inner wall surface of the positioning groove avoiding the first elastic member.

6. The battery liquid injection fixture according to claim 1, characterized in that: The clamping assembly comprises a driving member, a clamping member and a second elastic member, wherein the clamping member is connected to the output end of the driving member through the second elastic member and can be moved closer to or away from the first avoidance gap through the driving member; Alternatively, the clamping assembly comprises a driving member, a clamping member and a second elastic member, a flexible layer is provided on a side of the clamping member facing the positioning groove, and is connected to an output end of the driving member through the second elastic member.

7. The battery liquid injection fixture according to claim 6, characterized in that: The fixture platform has a first direction, the positioning assembly includes a positioning seat, and the positioning seat is provided with a plurality of positioning members spaced apart along the first direction; the clamping assembly also includes a first connecting member, and the first connecting member is provided with a plurality of clamping members spaced apart along the first direction, one clamping member corresponds to one positioning member, and the output end of the driving member is connected to the first connecting member.

8. The battery liquid injection fixture according to claim 7, characterized in that: The fixture platform has a second direction, and the straight line where the second direction is located is set at an angle with the straight line where the first direction is located. There are multiple positioning seats, and the multiple positioning seats are distributed at intervals along the second direction; there are multiple first connecting members, and one first connecting member corresponds to one positioning seat.

9. The battery liquid injection fixture according to claim 8, characterized in that: The clamping assembly further includes a second connecting member extending along the second direction, and a plurality of the first connecting members are spaced apart and distributed on the second connecting member along the second direction; and the output end of the driving member is connected to the second connecting member.

10. The battery liquid injection fixture according to claim 9, characterized in that: There are two second connecting members, the two second connecting members are spaced apart along the first direction, and two ends of the first connecting member are respectively connected to the two second connecting members.

11. The battery liquid injection fixture according to claim 10, characterized in that: The clamping assembly also includes a connecting rod, a slider and a slide rail, the two ends of the connecting rod are respectively connected to the ends of the two second connecting members, the slide rail is arranged on the fixture platform and extends along the second direction, the second connecting member is connected to the slide rail through the slider, and the output end of the driving member is connected to the connecting rod.

12. The battery liquid injection fixture according to claim 1, characterized in that: It also includes a locking component, which is arranged on the fixture platform and located outside the positioning component and the clamping component. The locking component is used to support and lock the liquid cup tray component located above the positioning component.

13. The battery liquid injection fixture according to claim 12, characterized in that: The locking assembly includes a third connecting member and a snap-in member, wherein the third connecting member extends along the second direction of the jig platform, and the snap-in member is disposed on a side of the third connecting member away from the jig platform, and the snap-in member is used to be snap-connected with a slot on the liquid cup tray assembly.

14. The battery liquid injection fixture according to claim 13, characterized in that: The clamping member includes a fixing seat, a buckle, a rotating shaft and a third elastic member. The fixing seat is arranged on the third connecting member. The fixing seat is provided with a groove extending along the height direction. The rotating shaft is horizontally arranged in the groove. The buckle is rotatably connected to the fixing seat via the rotating shaft. The part of the buckle accommodated in the groove is connected to the corresponding fixing seat via the third elastic member. The part of the buckle extending out of the groove is buckled with the slot on the liquid cup tray assembly.

15. The battery liquid injection fixture according to claim 14, characterized in that: A connecting ear is provided on a side of the fixing seat away from the third connecting member, and the clamping member also includes a handle and a limiting column. The handle is rotatably connected to the fixing seat through the connecting ear, and a second avoidance notch facing the buckle is provided on the handle. The limiting column is provided in the second avoidance notch, and a limiting groove corresponding to the limiting column is provided on the buckle.

16. The battery liquid injection fixture according to claim 13, characterized in that: The locking assembly further comprises a guide member, which is arranged close to the clamping member on a side of the third connecting member away from the fixture platform, and cooperates with a guide sleeve on the liquid cup tray assembly.

17. The battery liquid injection fixture according to claim 16, characterized in that: The locking assembly further includes a fourth connecting member and a buffer member, wherein the buffer member is connected to the guide member via the fourth connecting member, and the buffer member cooperates with a top connection column on the liquid cup tray assembly.

18. A liquid injection device, characterized in that: It comprises a battery filling fixture as described in any one of claims 1 to 17 and a liquid cup tray assembly arranged above the battery filling fixture, the liquid cup tray assembly is provided with a filling nozzle facing the battery filling fixture, and the filling nozzle is connected to the filling hole of the battery accommodated in the positioning groove of the battery filling fixture.

19. The liquid injection device according to claim 18, characterized in that: The liquid cup tray assembly includes a tray, a buckling piece and a first adjusting piece. The tray is arranged above the battery filling fixture. The first adjusting piece is arranged on a side of the tray away from the battery filling fixture. The length of the first adjusting piece in the height direction of the fixture platform of the battery filling fixture is different. The buckling piece is arranged on a side of the first adjusting piece away from the tray. The buckling piece is provided with a slot that is engaged with a clamping piece of the battery filling fixture.

20. The liquid injection device according to claim 19, characterized in that: The liquid cup tray assembly also includes a liquid cup fixing part and a second adjusting part. The liquid cup fixing part is movably arranged on a side of the tray away from the battery liquid filling fixture. The second adjusting part is arranged on the tray and is used to adjust the position of the liquid cup fixing part on the tray.

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