Battery liquid injection device

Abstract

The utility model discloses a battery liquid injection device, which comprises a support frame, the lifting plate is movably arranged on the supporting frame in the first direction; the air bag pulling mechanism comprises two first driving parts and two suction cup fixing plates, the two first driving parts are arranged at the two opposite ends of the lifting plate respectively, the two suction cup fixing plates are movably arranged on the side, in the first direction, of the lifting plate in the second direction, and suction cups of the two suction cup fixing plates are oppositely arranged in the second direction; the first driving parts provide driving force in the second direction perpendicular to the first direction and are used for driving the suction cup fixing plates to move in the second direction so that the suction cups of the two suction cup fixing plates can move in the opposite directions or in the opposite directions in the second direction. In this way, the loading force of the suction cup in the air bag pulling process is consistent with the driving force provided by the first driving piece in direction, and motion jamming caused by component force generated by an existing air bag pulling mechanism is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of battery preparation, in particular to a battery liquid injection device. Background Art

[0002] In the related art, the air suction bag structure of the liquid injection mechanism is complex, there are many pneumatic components and many air circuit layouts. During the process of pulling the air suction bag, it is easy to get stuck, the actions of pulling the air suction bag are inconsistent, and the production capacity is low. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a battery liquid injection device, in which the load force of the suction cup during the process of pulling the air suction bag is in the same direction as the driving force provided by the first driving member, so as to avoid the movement jamming caused by the component force generated by the existing air suction bag mechanism.

[0004] The battery liquid injection device according to an embodiment of the utility model includes: a support frame; a lifting plate movably arranged on the support frame along a first direction; an air suction bag pulling mechanism, including: two first driving members and two suction cup fixing plates. The two first driving members are respectively arranged at opposite ends of the lifting plate. The two suction cup fixing plates are movably arranged on one side of the lifting plate along the first direction along a second direction. The suction cups of the two suction cup fixing plates are arranged oppositely along the second direction. The first driving member provides a driving force in the second direction perpendicular to the first direction, and is used to drive the respective suction cup fixing plates to move along the second direction and make the suction cups of the two suction cup fixing plates move towards each other or in opposite directions along the second direction.

[0005] In the battery liquid injection device according to an embodiment of the utility model, the first driving member provides a driving force in the second direction to drive the suction cup fixing plate to move along the second direction, so that the load force of the suction cup during the process of pulling the air suction bag is in the same direction as the driving force provided by the first driving member, avoiding the movement jamming caused by the component force generated by the existing air suction bag mechanism.

[0006] According to some embodiments of the utility model, a plurality of suction cups are arranged on the suction cup fixing plate at equal intervals along the second direction. The suction cups of one of the suction cup fixing plates are adsorbed and arranged at one end facing the second direction, and the suction cups of the other suction cup fixing plate are adsorbed and arranged at the opposite end facing the second direction. The plurality of suction cups of the two suction cup fixing plates are arranged alternately along the second direction.

[0007] According to some embodiments of the utility model, the two suction cup fixing plates are arranged at intervals along the first direction, and the suction cups of the suction cup fixing plate adjacent to the lifting plate and the suction cups of the suction cup fixing plate far from the lifting plate are in the same position along the first direction.

[0008] According to some embodiments of the present utility model, a slide rail that is slidable in a second direction is provided on one side of the lifting plate along a first direction, and the two suction cup fixing plates are respectively fixedly connected to their corresponding slide rails.

[0009] According to some embodiments of the present utility model, the air suction bag mechanism includes: a limiting member, which is provided on one side of the lifting plate along the first direction and is used to limit the extreme position of the movement of the suction cup fixing plate.

[0010] According to some embodiments of the present utility model, the air suction bag mechanism includes: an adjusting member, which is detachably provided on the limiting member and is used to adjust the extreme position of the movement of the suction cup fixing plate.

[0011] According to some embodiments of the present utility model, the liquid injection device further includes: a liquid injection mechanism, and includes: a plurality of liquid injection needle assemblies; a second driving member, which is provided on the support frame and is used to drive the plurality of liquid injection needle assemblies to move along the first direction and can move to between the suction cups of the two suction cup fixing plates.

[0012] According to some embodiments of the present utility model, the liquid injection needle assembly includes: a liquid injection needle, one end of the liquid injection needle along the first direction is used to connect to a liquid pump and the other end is used to inject liquid into the battery; an air vent joint, one end of the air vent joint is used to connect to an air pump and the other end is communicated with the liquid injection needle, and the air vent joint is configured to ventilate after the battery is filled with liquid to blow the liquid inside the liquid injection needle into the battery interior.

[0013] According to some embodiments of the present utility model, the liquid injection needle assembly further includes: a transparent air pipe, which is connected to the end of the liquid injection needle far from the liquid pump, and the air vent joint is provided at the end of the liquid injection needle adjacent to the transparent air pipe.

[0014] According to some embodiments of the present utility model, the liquid injection mechanism further includes: a liquid injection needle fixing plate, which is drivingly connected to the second driving member, and the plurality of liquid injection needle assemblies are arranged on the liquid injection needle fixing plate.

[0015] Additional aspects and advantages of the present utility model will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0017] Figure 1 is a schematic structural diagram of a battery liquid injection device according to an embodiment of the present utility model;

[0018] Figure 2 is a schematic structural view of a gas bag pulling mechanism according to an embodiment of the present utility model;

[0019] Figure 3 is an exploded view of the gas bag pulling mechanism according to an embodiment of the present utility model;

[0020] Figure 4 is a schematic structural view of a liquid injection mechanism according to an embodiment of the present utility model.

[0021] Reference numerals:

[0022] 1, support frame; 11, support column; 12, fixed plate; 13, guide sleeve; 2, lifting plate; 21, guide shaft; 22, guide shaft support; 3, gas bag pulling mechanism; 31, first driving member; 311, second floating joint; 32, suction cup fixing plate; 33, suction cup; 331, connecting block; 34, suction cup mounting seat; 35, slide rail; 36, support block; 37, limiting member; 38, mounting plate fixing seat; 39, mounting plate; 4, liquid injection mechanism; 41, second driving member; 42, liquid injection needle; 43, ventilation joint; 44, transparent air pipe; 45, quick-change joint; 46, liquid injection needle fixing plate; 47, connecting plate; 5, third driving member; 6, first floating joint; 7, battery. Detailed implementation manners

[0023] The embodiments of the present utility model will be described in detail below. The embodiments described with reference to the drawings are exemplary. The embodiments of the present utility model will be described in detail below.

[0024] Next, reference is made to Figures 1-4 to describe a battery liquid injection device according to an embodiment of the present utility model.

[0025] As Figures 1-4 shown, the battery 7 liquid injection device includes: a support frame 1, a lifting plate 2, a gas bag pulling mechanism 3, and a liquid injection mechanism 4.

[0026] The lifting plate 2 is movably arranged on the support frame 1 along a first direction. Among them, the support frame 1 includes a support column 11 and a fixed plate 12. The fixed plate 12 is arranged on the support column 11 to ensure that there is enough space below the fixed plate 12 for transporting the battery 7.

[0027] In addition, the battery 7 liquid injection device further includes a third driving member 5. The third driving member 5 is installed on the support frame 1. The power output end of the third driving member 5 is drivingly connected to the lifting plate 2 through a first floating joint 6 for driving the lifting plate 2 to move relative to the support frame 1 in the first direction.

[0028] In the embodiment disclosed by the present utility model, the third driving member 5 is a driving cylinder and is installed on the fixed plate 12.

[0029] Moreover, a guide sleeve 13 is provided on the support frame 1, and a guide shaft 21 is provided on the lifting plate 2. The guide shaft 21 passes through the guide sleeve 13 and linearly moves within the guide sleeve 13, guiding the movement of the lifting plate 2 in the first direction. Among them, a guide shaft support 22 is provided on the lifting plate 2. One end of the guide shaft 21 in the first direction is fixed to the guide shaft support 22 and the other end passes through the guide sleeve 13. In addition, a limiting portion is provided at one end of the guide shaft 21 away from the guide shaft support 22 to selectively abut against the guide sleeve 13 to play a limiting role.

[0030] Furthermore, the air bag pulling mechanism 3 is arranged on one side of the lifting plate 2 away from the fixed plate 12 in the first direction. When the battery 7 is transported below the support frame 1, the third driving member 5 starts to act, causing the lifting plate 2 to drive the air bag pulling mechanism 3 to descend to a specified height.

[0031] Combined with Figure 2 and Figure 3 As shown in the figure, the air bag pulling mechanism 3 includes: two first driving members 31 and two suction cup fixing plates 32. The two first driving members 31 are respectively arranged at opposite ends of the lifting plate 2. The two suction cup fixing plates 32 are movably arranged on one side of the lifting plate 2 in the first direction along the second direction. The suction cups 33 of the two suction cup fixing plates 32 are arranged opposite to each other along the second direction. The first driving member 31 provides a driving force in the second direction perpendicular to the first direction for driving its respective suction cup fixing plate 32 to move along the second direction, so that the suction cups 33 of the two suction cup fixing plates 32 move towards each other or in opposite directions along the second direction.

[0032] Specifically, when the lifting plate 2 drives the air bag pulling mechanism 3 to descend to a specified height, the two first driving members 31 located at opposite ends of the lifting plate 2 simultaneously provide a driving force in the second direction, causing the two suction cup fixing plates 32 to move towards each other along the second direction, and further causing the suction cups 33 on the two suction cup fixing plates 32 to approach each other, ensuring that the suction cups 33 press on both sides of the air bag of the battery 7. Then, a negative pressure is connected to the suction cups 33 to suck the air bag of the battery 7. Next, the two first driving members 31 simultaneously drive the two suction cup fixing plates 32 to move in opposite directions, thereby pulling open the air bags on both sides of the battery 7, facilitating the liquid injection mechanism 4 to inject liquid into the air bag of the battery 7.

[0033] In the disclosed embodiment of the present invention, the first driving member 31 is a driving cylinder. By extending or retracting the push rod of the driving cylinder in the second direction, the two suction cup fixing plates 32 are caused to move towards each other or in opposite directions.

[0034] Among them, when the lifting plate 2 drives the air bag pulling mechanism 3 to descend to a specified height, the initial state of the driving cylinder is the retracted state to avoid the suction cup 33 pressing on the air bag of the battery 7 during the descent. When the suction cup 33 reaches the specified position, the driving cylinder changes from the retracted state to the extended state, so that the suction cup 33 presses on both sides of the air bag of the battery 7.

[0035] In an embodiment of the present utility model, mounting plate fixing seats 38 are respectively arranged at opposite ends of the lifting plate 2, and the first driving member 31 is fixed to the mounting plate fixing seat 38 through the mounting plate 39. Moreover, the power output end of the first driving member 31 is connected to the suction cup fixing plate 32 through the second floating joint 311.

[0036] Thus, according to the battery 7 liquid injection device of the present utility model, the first driving member 31 provides a driving force in the second direction to drive the suction cup fixing plate 32 to move in the second direction, so that the load force of the suction cup 33 during the process of pulling the air bag is in the same direction as the driving force provided by the first driving member 31, avoiding the movement jamming caused by the component force generated by the existing air bag pulling mechanism 3.

[0037] Furthermore, a plurality of suction cups 33 arranged at equal intervals in the second direction are provided on the suction cup fixing plate 32. One of the suction cups 33 on the suction cup fixing plate 32 is adsorbed and arranged at one end facing the second direction, and the suction cups 33 on the other suction cup fixing plate 32 are adsorbed and arranged at the opposite end facing the second direction. The plurality of suction cups 33 on the two suction cup fixing plates 32 are arranged alternately in the second direction.

[0038] See Figure 2 As shown, the plurality of suction cups 33 on the two suction cup fixing plates 32 are arranged alternately. From one end to the other end in the second direction, the first suction cup 33 of one of the suction cup fixing plates 32 is oppositely arranged with the first suction cup 33 of the other suction cup fixing plate 32 to form a first group, and the second suction cup 33 of one of the suction cup fixing plates 32 is oppositely arranged with the second suction cup 33 of the other suction cup fixing plate 32 to form a second group. In this way, the plurality of suction cups 33 on the two suction cup fixing plates 32 form multiple groups, and each group corresponds to one battery 7 air bag. Thus, the pressing and pulling of multiple battery 7 air bags can be realized simultaneously, and further, the liquid injection mechanism 4 can inject liquid into multiple battery 7 air bags simultaneously. Therefore, during the process of pulling the air bag, the opening and closing gaps of the multiple suction cups 33 are the same, the opening and closing actions are consistent, the opening states of the multiple battery 7 air bags are consistent, and the effect of pulling the air bag is better.

[0039] Furthermore, a suction cup mounting seat 34 is arranged on the side of the suction cup fixing plate 32 away from the lifting plate 2. A plurality of suction cups 33 arranged in the third direction are provided on the suction cup mounting seat 34 to ensure the adsorption effect on both sides of the battery 7 air bag. Moreover, the suction cup mounting seat 34 is perpendicularly arranged relative to the suction cup fixing plate 32 to ensure that the suction cups 33 on the suction cup mounting seat 34 adsorb towards the second direction. Wherein, the first direction, the second direction and the third direction are perpendicular to each other.

[0040] Further, the two sucker fixing plates 32 are arranged at intervals in the first direction, and the suckers 33 of the sucker fixing plate 32 adjacent to the lifting plate 2 and the suckers 33 of the sucker fixing plate 32 far from the lifting plate 2 are in the same position in the first direction.

[0041] See Figure 2 and Figure 3 As shown, the two sucker fixing plates 32 are arranged at intervals in the first direction, one of the sucker fixing plates 32 is arranged adjacent to the lifting plate 2, and the other sucker fixing plate 32 is arranged far from the lifting plate 2. Moreover, the suckers 33 of the sucker fixing plate 32 adjacent to the lifting plate 2 and the suckers 33 of the sucker fixing plate 32 far from the lifting plate 2 are arranged oppositely to ensure the adsorption effect on both sides of the air bag of the battery 7.

[0042] Specifically, a first avoidance notch is provided on the sucker fixing plate 32 far from the lifting plate 2, and the sucker 33 is fixed on the sucker fixing plate 32 adjacent to the lifting plate 2 through a connecting block 331 passing through the first avoidance notch.

[0043] Further, a slide rail 35 that can slide in the second direction is provided at the bottom of the lifting plate 2, and the two sucker fixing plates 32 are respectively fixedly connected to their corresponding slide rails 35.

[0044] See Figure 2 and Figure 3 As shown, a slide rail 35 that can slide in the second direction is provided on one side of the lifting plate 2 in the first direction. Among them, the slide rail 35 is arranged on the lifting plate 2 through a support block 36, and the slide rail 35 is movable relative to the support block 36. The two sucker fixing plates 32 can be bolted to their respective slide rails 35, greatly reducing the friction generated during the movement of the air bag pulling mechanism 3. The air bag pulling action is rapid and smooth, and multiple batteries 7 can be pulled simultaneously, improving the production beat and having a better operation effect. Among them, since the two sucker fixing plates 32 are arranged at intervals in the first direction, the dimensions of the support blocks 36 used to fix their corresponding slide rails 35 are different in the first direction.

[0045] Further, the air bag pulling mechanism 3 includes: a limiting member 37, which is arranged on one side of the lifting plate 2 in the first direction and is used to limit the extreme position of the movement of the sucker fixing plate 32.

[0046] Specifically, under the drive of the first driving member 31, when the two sucker fixing plates 32 move towards each other until the suckers 33 press against both sides of the air bag of the battery 7, and then the two sucker fixing plates 32 move in the opposite direction until they return to their respective initial positions, the limiting member 37 abuts against the sucker fixing plate 32 to ensure that the opening distance between the suckers 33 of the two sucker fixing plates 32 remains unchanged.

[0047] Further, the air bag pulling mechanism 3 includes: an adjusting member, which is detachably arranged on the limiting member 37 and is used to adjust the extreme position of the movement of the sucker fixing plate 32.

[0048] Specifically, when it is necessary to adjust the opening and closing distance between the suction cups 33 of the two suction cup fixing plates 32, an adjusting member is installed on the limiting member 37, thereby changing the opening and closing distance between the two suction cup fixing plates 32 to adapt to battery 7 air bags of different specifications. In addition, a buffer can also be installed on the limiting member 37, and the buffer can reduce the operating noise.

[0049] Furthermore, the liquid injection mechanism 4 includes: a plurality of liquid injection needle assemblies and a second driving member 41.

[0050] The second driving member 41 is arranged on the support frame 1. The second driving member 41 is used to drive the plurality of liquid injection needle assemblies to move in the first direction and can move between the suction cups 33 of the two suction cup fixing plates 32.

[0051] See Figure 1 and Figure 4 As shown, after the suction cups 33 of the air bag pulling mechanism 3 pull open a plurality of battery 7 air bags simultaneously, the second driving member 41 drives the plurality of liquid injection needle assemblies to move in the first direction to a specified height, and each liquid injection needle assembly moves between the corresponding set of suction cups 33, thereby injecting liquid into the plurality of battery 7 air bags simultaneously, improving the liquid injection rate.

[0052] Furthermore, the liquid injection needle assembly includes: a liquid injection needle 42 and an air vent joint 43.

[0053] One end of the liquid injection needle 42 in the first direction is used to connect to a liquid pump, and the other end is used to inject liquid into the battery 7. One end of the air vent joint 43 is used to connect to an air pump, and the other end communicates with the liquid injection needle 42. The air vent joint 43 is configured to ventilate after the injection of the battery 7 is completed, so as to blow the liquid inside the liquid injection needle 42 into the battery 7.

[0054] Specifically, after the injection of the battery 7 is completed, the air vent joint 43 is filled with compressed air, and the gas is blown through the liquid injection needle 42 to the needle tip of the liquid injection needle 42, and the residual electrolyte at the needle tip is blown into the battery 7 to prevent the electrolyte from crystallizing at the needle tip of the liquid injection needle 42. After the blowing is completed, the second driving member 41 drives the plurality of liquid injection needle assemblies to move away from the battery 7 in the first direction. The negative pressure inside the suction cup 33 is closed, and the battery 7 air bag is separated from the suction cup 33. The third driving member 5 starts to act, raises the lifting plate 2 to the initial height, and transports the un-injected battery 7 again to repeat the injection.

[0055] Furthermore, the liquid injection needle assembly further includes: a transparent air pipe 44. The transparent air pipe 44 is connected to the end of the liquid injection needle 42 far from the liquid pump, and the air vent joint 43 is arranged at the end of the liquid injection needle 42 adjacent to the transparent air pipe 44.

[0056] In this way, through the transparent air pipe 44, it is possible to check whether all the residual electrolyte in the liquid injection needle 42 has been blown into the battery 7. Among them, the transparent air pipe 44 is connected to one end of the liquid injection needle 42 away from the liquid pump through a quick-change joint 45.

[0057] Furthermore, the liquid injection mechanism 4 further includes: a liquid injection needle fixing plate 46, the liquid injection needle fixing plate 46 is drivingly connected to the second driving member 41, and a plurality of liquid injection needle assemblies are arranged on the liquid injection needle fixing plate 46.

[0058] When the second driving member 41 drives the liquid injection needle fixing plate 46 to move in the first direction, the liquid injection needle fixing plate 46 can drive a plurality of liquid injection needle assemblies to move simultaneously, so as to realize simultaneous liquid injection of a plurality of liquid injection needle assemblies into a plurality of batteries 7.

[0059] Among them, the ventilation joint 43 can be arranged on the liquid injection needle fixing plate 46 and communicated with the liquid injection needle 42. And, the liquid injection mechanism 4 further includes: a connecting plate 47, the connecting plate 47 is arranged at the output end of the second driving member 41, the connecting plate 47 is fixedly connected to the liquid injection needle fixing plate 46, and the second driving member 41 drives a plurality of liquid injection needle assemblies to move simultaneously through the connecting plate 47.

[0060] In addition, a second avoidance notch is provided on the suction cup fixing plate 32 adjacent to the lifting plate 2, so that the liquid injection needle assembly of the liquid injection mechanism 4 can pass through the first avoidance notch and the second avoidance notch and descend to a specified height.

[0061] Therefore, a ventilation joint 43 is newly added at the liquid injection needle 42. When the liquid injection needle 42 descends and the injection is completed and has not retracted, the ventilation joint 43 is connected to the compressor, and air is briefly blown into the battery 7 to blow off the electrolyte at the tip of the liquid injection needle 42 to avoid crystallization, reduce the risk of battery 7 being contaminated due to electrolyte crystallization and dropping materials, and improve the yield rate of the battery 7.

[0062] According to the battery 7 liquid injection device of the present invention, the specific working process is as follows:

[0063] First of all, a plurality of batteries 7 are transported to the lower part of the battery 7 liquid injection device through a transportation device, the third driving member 5 starts to act, the lifting plate 2 is lowered to a specified height, and at the same time, the lifting plate 2 drives the air bag pulling mechanism 3 to descend to a specified height. At this time, the initial state of the first driving member 31, that is, the driving cylinder, is a retracted state;

[0064] Secondly, when the suction cups 33 of the air bag pulling mechanism 3 reach the specified positions, the driving cylinder changes from the retracted state to the extended state, and the two first driving members 31, i.e., the driving cylinders, located at the opposite ends of the lifting plate 2 extend simultaneously, causing the two suction cup fixing plates 32 to move towards each other in the second direction. As a result, the suction cups 33 on the two suction cup fixing plates 32 approach each other, ensuring that the suction cups 33 press on both sides of the air bag of the battery 7. Then, a negative pressure is connected to the suction cups 33 to suck the air bag of the battery 7. Next, the two first driving members 31, i.e., the driving cylinders, retract simultaneously, causing the two suction cup fixing plates 32 to move in the opposite direction, thereby pulling apart both sides of the air bag of the battery 7;

[0065] Then, after the air bag pulling mechanism 3 pulls apart the air bag of the battery 7, the second driving member 41 drives a plurality of liquid injection needle assemblies to move downward through the liquid injection needle fixing plate 46. When the liquid injection needles 42 descend to the specified height, liquid injection into the battery 7 starts. When the liquid injection is completed, the air vent joint 43 is connected to compressed air, and the gas is blown towards the tips of the liquid injection needles 42 through the liquid injection needle fixing plate 46, the quick-change joint 45, and the transparent air pipe 44, blowing the residual electrolyte at the needle tips into the battery 7 to prevent the electrolyte from crystallizing at the tips of the liquid injection needles 42, as Figure 4 shown.

[0066] Finally, after the blowing action is completed, the second driving member 41 drives the liquid injection needle 42 mechanism to move upward through the liquid injection needle fixing plate 46. The negative pressure inside the suction cups 33 is closed, and the air bag of the battery 7 is separated from the suction cups 33. The third driving member 5 starts to act, raising the lifting plate 2 to the initial height, and re-transporting a plurality of un-injected batteries 7 to repeat the liquid injection.

[0067] Therefore, the battery 7 liquid injection device according to the present utility model has the following effects: First, the load force during the air bag pulling process is in the same direction as the driving force provided by the first driving member 31, avoiding the movement jamming caused by the component forces generated by the existing air bag pulling mechanism 3. Second, the two suction cup 33 seat fixing plates 12 are moved using the slide rail 35, greatly reducing the friction generated during the movement of the mechanism. The air bag pulling action is rapid and smooth, and multiple batteries 7 can be pulled simultaneously with better operating effects. Third, during the air bag pulling process, the opening and closing actions of the suction cups 33 are consistent, the opening and closing gap distances are the same and adjustable, and the installation and debugging are simple, ensuring that the opening states of multiple batteries 7 are the same and the air bag pulling effect is better. Fourth, a blowing structure is added at the tip of the liquid injection needle 42. When the liquid injection needles 42 descend and the liquid injection is completed but not retracted, air is briefly blown downward to blow off the electrolyte at the needle tips to prevent crystallization, reducing the risk of battery 7 contamination due to electrolyte crystallization and improving the yield rate of the battery 7. Fifth, the number of required pneumatic actuators is small, reducing the number of air circuit layouts. Multiple battery liquid injections can be completed simultaneously, reducing the equipment cost and the maintenance cost.

[0068] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0069] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0070] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A battery filling device, characterized in that: include: Support frame; A lifting plate, the lifting plate being movably disposed on the supporting frame along a first direction; The air bag pulling mechanism includes: two first driving members and two suction cup fixing plates, the two first driving members are respectively arranged at opposite ends of the lifting plate, the two suction cup fixing plates are movably arranged along the second direction on one side of the lifting plate along the first direction, the suction cups of the two suction cup fixing plates are relatively arranged along the second direction, and the first driving member provides a driving force in a second direction perpendicular to the first direction, which is used to drive the respective suction cup fixing plates to move along the second direction, so that the suction cups of the two suction cup fixing plates move toward or in the opposite directions along the second direction.

2. The battery liquid injection device according to claim 1, characterized in that: The suction cup fixing plate is provided with a plurality of suction cups equidistantly arranged along the second direction, wherein the suction cup of one of the suction cup fixing plates is adsorbed and arranged toward one end of the second direction and the suction cup of the other suction cup fixing plate is adsorbed and arranged toward the end opposite to the second direction, and the plurality of suction cups of the two suction cup fixing plates are alternately arranged along the second direction.

3. The battery liquid injection device according to claim 1, characterized in that: The two suction cup fixing plates are spaced apart along a first direction, and the suction cup of the suction cup fixing plate adjacent to the lifting plate and the suction cup of the suction cup fixing plate away from the lifting plate are at the same position along the first direction.

4. The battery liquid filling device according to claim 3, characterized in that: A slide rail sliding along a second direction is provided on one side of the lifting plate along the first direction, and the two suction cup fixing plates are fixedly connected to the respective slide rails.

5. The battery liquid injection device according to claim 1, characterized in that: The air bag pulling mechanism comprises: a limiting member, which is arranged on one side of the lifting plate along the first direction and is used to limit the extreme position of the movement of the suction cup fixing plate.

6. The battery liquid injection device according to claim 5, characterized in that: The air bag pulling mechanism comprises: an adjusting member, which is detachably arranged on the limiting member and is used to adjust the extreme position of the movement of the suction cup fixing plate.

7. The battery liquid injection device according to any one of claims 1 to 6, characterized in that: Also includes: The liquid injection mechanism comprises: a plurality of injection needle assemblies; A second driving member, wherein the second driving member is disposed on the support frame and is used for driving the plurality of injection needle assemblies to move along a first direction and can move between the suction cups of the two suction cup fixing plates.

8. The battery liquid injection device according to claim 7, characterized in that: The injection needle assembly comprises: A liquid injection needle, wherein one end of the liquid injection needle along the first direction is used to connect to a liquid pump and the other end is used to inject liquid into the battery; A vent connector, one end of which is used to connect to an air pump and the other end of which is connected to the injection needle. The vent connector is configured to ventilate the vent connector after the battery is injected with liquid so as to blow the liquid inside the injection needle into the battery.

9. The battery liquid filling device according to claim 8, characterized in that: The injection needle assembly also includes: A transparent air tube is connected to an end of the injection needle away from the liquid pump, and the ventilation joint is arranged at an end of the injection needle adjacent to the transparent air tube.

10. The battery liquid injection device according to claim 7, characterized in that: The injection mechanism further includes: an injection needle fixing plate, the injection needle fixing plate is drivingly connected to the second driving member, and a plurality of the injection needle assemblies are arranged on the injection needle fixing plate.

Images