Battery liquid injection device

Abstract

The utility model relates to a battery liquid injection device, which comprises: a liquid injection mechanism, which comprises a support and an air bag pulling assembly capable of being close to or far away from the support; the bag supporting mechanism comprises a bag supporting assembly, and the bag supporting assembly is configured to be capable of being close to or away from the support and supporting the air bag; and the air bag pulling assembly is configured to pull the clamped and straightened air bag open. Therefore, when liquid is injected into the battery, the air bag to be injected can be supported through the bag supporting assembly, and then the supported air bag is pulled open through the air bag pulling assembly, so that the problem of bag pressing caused by inclination of the air bag in the bag pulling process of the air bag pulling assembly is avoided, the liquid injection mechanism can be aligned with the air bag to inject liquid, and the liquid injection efficiency is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of auxiliary equipment for soft-pack lithium batteries, and in particular, to a battery liquid injection device. Background Art

[0002] The soft-pack lithium battery injection equipment uses the positioning fixture on the material tray to position and inject the battery. Before injecting the electrolyte, the battery cell air bag must be pulled apart by a vacuum suction cup to ensure that the injection needle can reliably inject the electrolyte into the battery cell air bag. Limited by the structure of the soft-pack lithium battery itself, the battery cell air bag itself has a relatively soft characteristic. Under the action of gravity, the upper part of the battery cell air bag will naturally tilt to a large extent in the positioning fixture, resulting in frequent compression of the air bag when the vacuum suction cup descends to the working position, thereby reducing the stability and reliability of the injection equipment, and seriously reducing the production efficiency and battery output of soft-pack lithium batteries. Utility Model Content

[0003] The purpose of the present disclosure is to provide a battery liquid injection device, which can straighten the battery cell air bag to be injected, improve the stability and reliability of the liquid injection device, so as to at least partially solve the above technical problems.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides a battery liquid filling device, including: a liquid filling mechanism, including a bracket and an air bag pulling assembly that can move close to or away from the bracket; and a bag supporting mechanism, including a bag supporting assembly, the bag supporting assembly is configured to move close to or away from the bracket and support the air bag; the air bag pulling assembly is configured to pull open the clamped and straightened air bag.

[0005] Optionally, the air pulling bag assembly can approach or move away from the bracket in a first direction; the support bag assembly is arranged below the air pulling bag assembly and can approach or move away from the bracket in the first direction.

[0006] Optionally, the bag-supporting assembly includes at least one mounting seat and at least one bag-supporting group disposed on the mounting seat, the mounting seat is configured to be able to approach or move away from the bracket, and the bag-supporting group is configured to be able to support the airbag.

[0007] Optionally, the support bag group includes two support rods extending along the second direction, and the two support rods are arranged on the mounting seat at intervals in the third direction. At least one of the support rods in the support bag group can approach or move away from another support rod in the support bag group, wherein the first direction, the second direction and the third direction are arranged perpendicular to each other.

[0008] Optionally, the battery filling device further comprises a first driving member, which is disposed on the mounting seat and is configured to drive at least one of the support rods of the support bag group to move closer to or away from another support rod in the support bag group.

[0009] Optionally, there are two first driving members, and the two first driving members are respectively located on two mounting seats spaced apart in the second direction, and the output ends of the two first driving members in the second direction are arranged in the same direction, and the output ends of the two first driving members are respectively fixedly connected to the two ends of one of the armrests of the support bag group, and the two first driving members synchronously drive the armrest to approach or move away from another armrest of the support bag group.

[0010] Optionally, the first driving member also includes a first output end and a second output end arranged opposite to each other in a second direction, the first output end is provided with a first extension seat, the second output end is provided with a second extension seat, the first extension seat is provided with a first mounting position and a second mounting position in the second direction, the second extension seat is provided with a third mounting position and a fourth mounting position in the second direction, the first mounting position, the third mounting position, the second mounting position and the fourth mounting position are alternately arranged in the second direction, the number of the support bag groups is two, the two support rods of one of the support bag groups are respectively arranged at the first mounting position and the third mounting position, and the two support rods of the other support bag group are respectively arranged at the second mounting position and the fourth mounting position.

[0011] Optionally, the bag-supporting mechanism further includes a driving assembly, and the driving assembly is used to drive the bag-supporting assembly to move along the first direction.

[0012] Optionally, the driving assembly includes at least one mounting plate connected to the bracket and a second driving member arranged on the mounting plate, the output end of the second driving member is connected to the mounting seat, and the second driving member is configured to drive the mounting seat to move along the first direction.

[0013] Optionally, a mounting portion is provided on the mounting plate, and a matching portion matching with the mounting portion is provided on the bracket, and the mounting portion and the matching portion are fixedly connected to fix the mounting plate to the bracket.

[0014] Optionally, the second driving member includes a driving cylinder and a guide support, the driving cylinder is fixedly connected to the mounting plate, the guide support is arranged on the mounting seat, the output end of the driving cylinder is fixedly connected to the mounting seat, and the side of the driving cylinder away from the mounting plate is slidably connected to the guide support in a first direction.

[0015] Optionally, the air bag assembly comprises a substrate, the substrate can be close to or away from the bracket in a first direction, at least two adsorption members are arranged on the substrate at intervals, and the at least two adsorption members can be close to or away from each other.

[0016] Optionally, a plurality of suction cups spaced apart along the second direction are provided on opposite sides of the two adsorption members.

[0017] Optionally, the battery injection device further comprises an injection hole, which is arranged on the substrate and between the two suction cups, and is used to avoid an injection tube in the injection mechanism.

[0018] Through the above technical scheme, the air bag pulling assembly in the liquid injection mechanism is moved closer to or away from the bracket, so as to adjust the position of the air bag pulling assembly and the air bag and pull the air bag open; the bag supporting assembly in the bag supporting mechanism is moved closer to or away from the bracket, so that the air bag can be supported by the bag supporting assembly. Therefore, when the battery is injected with liquid, the air bag to be injected can be supported by the bag supporting assembly, avoiding the problem of bag compression caused by the skewness of the air bag during the bag pulling process, so that the liquid injection mechanism can align the air bag with the liquid injection, thereby improving the liquid injection efficiency.

[0019] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0021] Figure 1 is a schematic structural diagram of a battery liquid injection device provided in an exemplary embodiment of the present disclosure from a first angle;

[0022] Figure 2 is a second angle structural schematic diagram of a battery liquid injection device provided in an exemplary embodiment of the present disclosure;

[0023] Figure 3 is a structural schematic diagram of a bag-supporting mechanism of a battery liquid filling device provided in an exemplary embodiment of the present disclosure;

[0024] Figure 4 2 is a bottom view of a bag-supporting mechanism of a battery liquid filling device provided in an exemplary embodiment of the present disclosure.

[0025] Description of Reference Numerals

[0026] 1-liquid injection mechanism; 11-bracket; 12-air bag pulling assembly; 121-base plate; 122-adsorption member; 123-suction cup; 124-liquid injection hole; 125-adsorption block; 126-adsorption hole; 2-bag supporting mechanism; 21-driving assembly; 211-mounting plate; 212-second driving member; 213-driving cylinder; 214-guide support; 215-mounting portion; 216-protruding portion; 22-bag supporting assembly; 221-mounting seat; 222-support rod; 223-first driving member; 224-first extension seat; 2241-first mounting position; 2242-second mounting position; 225-second extension seat; 2251-third mounting position; 2252-fourth mounting position. DETAILED DESCRIPTION

[0027] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0028] In the present disclosure, unless otherwise stated, directional words such as "up, down, left, right" are generally defined by the use state of the injection device. The "first direction" can be specifically referred to as Figure 1 The X direction shown in the figure, the “second direction” can be specifically referred to Figure 1 The Y direction is shown in the figure. For details about the “third direction”, please refer to Figure 1 In the Z direction shown, in addition, the terms "first", "second", etc. used in the present disclosure are to distinguish one element from another element, and do not have order and importance. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0029] like Figure 1-Figure 4 As shown, the present disclosure provides a battery liquid injection device, including a liquid injection mechanism 1 and a bag support mechanism 2, wherein the liquid injection mechanism 1 includes a bracket 11 and an air bag assembly 12, the air bag assembly 12 can be close to or away from the bracket 11 in a first direction, and the bag support mechanism 2 includes a bag support assembly 22, and the bag support assembly 22 is arranged below the air bag assembly 12. The bag support assembly 22 here is arranged below the air bag assembly 12. For details, please refer to Figure 1 In the first direction, the bag-supporting assembly 22 is located below the air bag-pulling assembly 12. The bag-supporting assembly 22 can approach or move away from the bracket 11 in the first direction. The bag-supporting assembly 22 is configured to clamp and straighten the air bag, and the air bag-pulling assembly 12 is configured to pull open the clamped and straightened air bag.

[0030] Through the above technical scheme, the battery filling device includes a filling mechanism 1 and a bag-supporting mechanism 2. The air bag pulling component 12 in the filling mechanism 1 can be close to or away from the bracket 11 in the first direction, so as to adjust the position of the air bag pulling component 12 and the air bag, so that the air bag pulling component 12 can adapt to air bags of various sizes; the bag-supporting component 22 in the bag-supporting mechanism 2 is close to or away from the bracket 11 in the first direction, so that the bag-supporting component 22 can adapt to air bags of various sizes, and the bag-supporting component 22 can clamp and straighten the air bag. When the battery is filled with liquid, the position of the bag-supporting component 22 in the battery filling device is adjusted first, that is, the bag-supporting component 22 is adjusted to be away from the bracket 11 in the first direction and moved to the preset bag-supporting position so that the bag-supporting component 22 can adjust the position of the air bag. The air bag to be injected with liquid is clamped and straightened. For example, when the air bag is placed, it will be offset from the preset air bag pulling position of the air bag pulling assembly 12. At this time, the air bag can be straightened by pushing the air bag in the opposite direction through the bag supporting assembly 22 so that the air bag is placed in the preset air bag pulling position. Then, by adjusting the position of the air bag pulling assembly 12, that is, adjusting the air bag pulling assembly 12 away from the bracket 11 along the first direction and moving it to the preset air bag pulling position, it is convenient for the air bag pulling assembly 12 to pull open the straightened air bag and inject liquid into the air bag through the injection mechanism 1. In this way, through the arrangement of the bag supporting assembly 22 and the air bag pulling assembly 12, the problem of bag compression caused by the skewing of the air bag during the bag pulling process is avoided, so that the injection mechanism can align the air bag with the injection, thereby improving the injection efficiency.

[0031] It can be understood that when the battery filling device is in the initial state, the air bag pulling assembly 12 and the bag supporting assembly 22 are both arranged close to the bracket 11 and the bag supporting assembly 22 is located below the air bag pulling assembly 12 in the first direction. When the air bag to be filled with liquid needs to be filled, the air bag pulling assembly 12 can be moved away from the bracket 11 in the first direction, and the bag supporting assembly 22 can be moved away from the bracket 11 along the first direction, so that the filling mechanism 1 and the bag supporting mechanism 2 can adapt to the filling of air bags of different specifications, or when the air bag is filled, the bag supporting assembly 22 can be controlled to move close to the bracket 11 according to the injection amount to adjust the position of the bag supporting, so that the air bag can be supported during the injection so that the injection mechanism can align the air bag for injection.

[0032] In addition, the air bag assembly 12 can approach or move away from the bracket 11 in the first direction, and the support bag assembly 22 is arranged below the air bag assembly 12 and can approach or move away from the bracket 11 in the first direction. This is schematic. In other embodiments, the relative positions of the air bag assembly 12, the support bag assembly 22 and the bracket 11 can also be selectively adjusted according to the specific installation position of the battery filling device.

[0033] In order to facilitate the support bag assembly 22 to clamp and straighten the air bag, in some practicable embodiments, the support bag assembly 22 includes at least one mounting seat 221 and at least one support bag group, the support bag group includes two support rods 222 extending along the second direction, the two support rods 222 are arranged at intervals on the mounting seat 221 in the third direction, and at least one support rod 222 in the support bag group can be close to or away from another support rod 222 of the support bag group, wherein the first direction, the second direction and the third direction are arranged perpendicular to each other, and the first direction can be specifically referred to Figure 1 The X direction shown, the second direction can be specifically referred to Figure 1 The Y direction is shown, and the third direction can be found in Figure 1 The Z direction shown. In a specific embodiment, the bag support assembly 22 includes a mounting seat 221 and a bag support group. The mounting seat 221 can be constructed as a rectangular plate extending along the third direction. One of the two support rods 222 in the bag support group can be constructed as a fixed support rod, and the other support rod 222 can be constructed as a movable support rod. The movable support rod can approach or move away from the fixed support rod, so that the two support rods 222 clamp and straighten the air bag. The mounting seat 221 can approach or move away from the bracket 11 in the first direction, and the preset position of the mounting seat 221 in the first direction can be adjusted so that the support rod 222 located on the mounting seat 221 clamps and straightens the air bag. In addition, when the air bag is filled with liquid, the two support rods 222 can be driven away from each other, so as to facilitate the removal of the air bag after the liquid filling is completed.

[0034] It can be understood that the above-mentioned bag-supporting assembly 22 including a mounting seat 221 and a bag-supporting group is schematic. In other embodiments, the number of mounting seats 221 and bag-supporting groups in the bag-supporting assembly 22 can also be selected as other numbers according to specific working conditions. For example, in a specific embodiment, the bag-supporting assembly 22 can also include two mounting seats 221 and two bag-supporting groups, the two mounting seats 221 are arranged at intervals along the second direction, and the two bag-supporting groups are arranged at intervals along the third direction, wherein the bag-supporting groups can be arranged on the two mounting seats 221. Through the arrangement of the two bag-supporting groups and the two mounting seats 221, the bag-supporting assembly 22 can clamp and straighten the two groups of air bags at the same time, thereby further improving the injection efficiency.

[0035] In order to facilitate the movable handrail to clamp the airbag close to the fixed handrail, in some feasible embodiments, the battery filling device also includes at least one first driving member 223, the first driving member 223 is arranged on the mounting seat 221, and the first driving member 223 is configured to be able to drive at least one handrail 222 of the bag support group in a third direction to approach or move away from another handrail 222 in the bag support group. In this way, the first driving member 223 drives the change of the distance between the two handrails 222 in the bag support group, so that the airbag located between the two handrails 222 is clamped and straightened. In some feasible embodiments, there are two first driving members 223, and the two first driving members 223 are respectively located on two mounting seats 221 spaced apart in the second direction, and the output ends of the two first driving members 223 in the second direction are arranged in the same direction, and the output ends of the two first driving members 223 are respectively fixedly connected to the two ends of the movable support rod of the support bag group, so that when it is necessary to clamp and straighten the air bag, the two first driving members 223 can synchronously drive the movable support rod to approach the fixed support rod of the support bag group, so that the air bag can be clamped and straightened by reducing the distance between the movable support rod and the fixed support rod in the support bag group, which is convenient for subsequent liquid injection. When the liquid injection is completed, the two first driving members 223 can synchronously drive the movable support rod away from the fixed support rod of the support bag group, so that the distance between the fixed support rod and the movable support rod of the support bag group can be restored, thereby facilitating the removal of the air bag after the liquid injection is completed.

[0036] It should be noted that the first driving member 223 can be constructed as one of a cylinder, an electric cylinder, a hydraulic cylinder or an air claw. In this embodiment, the first driving member 223 adopts a cylinder, the cylinder is arranged along the second direction and the piston rod of the cylinder is extended and retracted along the second direction, the piston rod end is fixedly connected to one end of the movable support rod, and the fixed support rod is fixedly connected to the mounting seat 221, so that the movable support rod is driven to approach the fixed support rod by extending and retracting the piston rod of the driving cylinder to clamp and straighten the airbag.

[0037] In addition, in some other practicable embodiments, the first driving member 223 includes a first output end and a second output end arranged opposite to each other in the second direction, wherein two ends of one of the supporting rods 222 in the supporting bag group are respectively fixedly connected to the first output ends of the two first driving members 223, and two ends of another supporting rod 222 in the supporting bag group are respectively fixedly connected to the second output ends of the two first driving members 223, so that the two supporting rods 222 can approach or move away from each other at the same time. That is, the two supporting rods 222 in the supporting bag group are both movable supporting rods, wherein two ends of one movable supporting rod are fixedly connected to the first output ends of the two first driving members 223, and two ends of the other movable supporting rod are fixedly connected to the second output ends of the two first driving members 223. When the air bag needs to be clamped and straightened, the two first driving members 223 can synchronously drive the two movable supporting rods to approach each other to clamp and straighten the air bag. When the air bag is injected with liquid and needs to be removed, the two first driving members 223 can synchronously drive the two movable supporting rods to move in the opposite direction. In this embodiment, the first driving member 223 can use a double-headed air gripper.

[0038] Of course, in some other feasible embodiments, the number of the first driving members 223 can also be four, and two first driving members 223 are fixed on the mounting seat 221 as a group, and the output ends of the two first driving members 223 on the same mounting seat 221 are set in opposite directions, and the two support rods 222 in the support bag group are both movable support rods, and the two ends of one movable support rod are respectively fixedly connected to the positive output end of the first driving member 223 located on a different mounting seat 221, and the two ends of the other movable support rod are respectively fixedly connected to the reverse output end of the first driving member 223 located on a different mounting seat 221. In this way, the four first driving members 223 can be driven synchronously to move so as to move the two movable support rods closer to or farther away from each other, thereby facilitating the clamping and straightening of the air bag.

[0039] In addition, in some other practicable embodiments, the first driving member 223 further includes a first output end and a second output end arranged opposite to each other in the second direction, the first output end is provided with a first extension seat 224, the second output end is provided with a second extension seat 225, the first extension seat 224 is provided with a first mounting position 2241 and a second mounting position 2242 in the second direction, the second extension seat 225 is provided with a third mounting position 2251 and a fourth mounting position 2252 in the second direction, the first mounting position 2241, the third mounting position 2251, the second mounting position 2242 and the fourth mounting position 2252 are alternately arranged in the second direction, and the number of the bag support groups is two, and the two bag support groups are respectively a first bag support group and a second bag support group. , wherein the two support rods 222 of the first support bag group are respectively arranged at the first mounting position 2241 and the third mounting position 2251, that is, the two ends of one of the support rods 222 of the first support bag group are respectively fixedly connected to the first mounting position 2241 on the two first driving members 223, the two ends of the leading support rod 222 of the first support bag group are respectively fixedly connected to the third mounting position 2251 on the two first driving members 223, and the two support rods 222 of the second support bag group are respectively arranged at the second mounting position 2242 and the fourth mounting position 2252. In this way, by driving the two first driving members 223, the first support bag group and the second support bag group can respectively and synchronously clamp and straighten the two air bags, thereby improving the injection efficiency.

[0040] In order to facilitate the movement of the bag-supporting assembly 22 along the first direction, in some practicable embodiments, the bag-supporting mechanism 2 further includes a driving assembly 21, and the driving assembly 21 is used to drive the bag-supporting assembly 22 to move along the first direction. In some practicable embodiments, the driving assembly 21 includes at least one mounting plate 211 connected to the bracket 11 and a second driving member 212 disposed on the mounting plate 211, the output end of the second driving member 212 is connected to the mounting seat 221, and the second driving member 212 is configured to drive the mounting seat 221 to move along the first direction. In a specific embodiment, the number of mounting plates 211 can be one, the mounting plate 211 is constructed as a rectangle, the mounting plate 211 is fixedly connected to the bracket 11, and the second driving member 212 can be one of a cylinder, a hydraulic cylinder or an electric cylinder. In this embodiment, the second driving member 212 adopts a cylinder, the second driving member 212 is fixed on the mounting plate 211, the second driving member 212 is arranged along the first direction and the output end of the second driving member 212 can be extended and retracted along the first direction, and the output end of the second driving member 212 is fixedly connected to the mounting seat 221 so that the output end of the second driving member 212 can be extended and retracted along the first direction, thereby driving the mounting seat 221 to move along the first direction to change the position of the bag support assembly 22 in the first direction, thereby adjusting the position of the bag support assembly 22 in the first direction to adapt to air bags of various specifications.

[0041] In addition, in order to ensure the stability of the connection between the mounting seat 221 and the bracket 11, in some other feasible embodiments, the number of the mounting plates 211 can be two, and the two mounting plates 211 are spaced apart along the third direction.

[0042] In order to adjust the installation position of the mounting plate 211 and the bracket 11 in the first direction, in some practicable ways, the mounting plate 211 may be provided with a mounting portion 215, and the bracket 11 may be provided with a matching portion that matches the mounting portion 215, and the mounting portion 215 and the matching portion are fixedly connected to fix the mounting plate 211 and the bracket 11. In a specific embodiment, the mounting portion 215 on the mounting plate 211 may be a strip hole extending along the first direction, and the matching portion may be a matching hole that matches the strip hole, so that the mounting plate 211 can be moved along the first direction so that different positions of the strip hole match the matching hole, and the mounting plate 211 and the bracket 11 are fixedly connected by fasteners passing through the strip hole and the matching hole, so that the position of the mounting plate 211 relative to the bracket 11 in the first direction changes by fasteners passing through different positions of the strip hole, thereby changing the positional relationship between the second driving member 212 on the mounting plate 211 and the bracket 11, so that the bag-supporting assembly 22 connected to the second driving member 212 can have multiple preset positions in the first direction to adapt to air bags of different specifications. Of course, it is understandable that the structure of the mounting portion 215 as a strip-shaped hole is schematic, and in other embodiments, the mounting portion 215 may also be a plurality of through holes spaced apart along the first direction.

[0043] In some practicable embodiments, the second driving member 212 includes a driving cylinder 213 fixedly connected to the mounting plate 211 and a guide support 214 arranged on the mounting seat 221, the output end of the driving cylinder 213 is fixedly connected to the mounting seat 221, the side of the driving cylinder 213 away from the mounting plate 211 is slidably connected to the guide support 214 in the first direction, the guide support 214 is constructed in a rectangular shape, the bottom end of the guide support 214 is fixedly connected to the mounting seat 221, a sliding groove is provided on the side of the guide support 214 facing the driving cylinder 213, and a protrusion 216 arranged to cooperate with the sliding groove is provided on the cylinder body of the driving cylinder 213, and the protrusion 216 cooperates with the sliding groove so that the driving cylinder 213 and the guide support 2 14 is slidably connected in the first direction, a side wall of the driving cylinder 213 opposite to the protrusion 216 is fixed on the mounting plate 211, and the output end of the driving cylinder 213 is fixedly connected to the mounting seat 221, so that when the output end of the driving cylinder 213 extends out along the first direction, the protrusion 216 of the driving cylinder 213 can limit the driving cylinder 213 to move along the slide groove of the guide support 214, so that the driving cylinder 213 can move along the slide groove of the guide support 214 to limit the freedom of the second driving member 212 to move along the first direction, and avoid the deviation of the bag-supporting position of the bag-supporting assembly 22 caused by the tilted position of the second driving member 212 when the bag-supporting assembly 22 is driven to move in the first direction, thereby affecting the bag-supporting effect. It can be understood that the above-mentioned structure in which the driving cylinder 213 and the guide support 214 are slidably connected through the protrusion 216 and the slide groove is schematic. In other embodiments, the driving cylinder 213 and the guide support 214 can also be slidably connected by providing a protrusion 216 on the driving cylinder 213 and a guide rod on the guide support 214, and the protrusion 216 is slidably connected to the guide rod, so that the driving cylinder 213 and the guide support 214 are slidably connected through the protrusion 216 and the guide rod.

[0044] In some practicable embodiments, the air bag assembly 12 includes a substrate 121, which can be close to or away from the bracket 11 in a first direction, and at least two adsorbents 122 are spaced apart on the substrate 121, and the two adsorbents 122 can be close to or away from each other. Figure 2 As shown, the substrate 121 is constructed as a rectangular plate and is connected to the bracket 11 through a drag chain. A third driving member capable of driving the substrate 121 to move along a first direction is provided on the bracket 11. Two adsorption members 122 are provided on the substrate 121. The two adsorption members 122 are arranged opposite to each other in a second direction. The two adsorption members 122 can approach each other in the second direction to adsorb the air bag, and the two adsorption members 122 after adsorption are away from each other to open the air bag, so as to facilitate the insertion of the injection tube into the air bag to inject liquid into the air bag.

[0045] Specifically, in order to facilitate the air bag to be pulled open by the air bag assembly 12, in some practicable ways, two adsorption members 122 are arranged opposite to each other in the third direction, and the adsorption members 122 include adsorption blocks 125 extending along the second direction, and a plurality of adsorption holes 126 arranged at intervals along the second direction are provided on the opposite side of the adsorption blocks 125 of the two adsorption members 122, and suction cups 123 are provided in some of the adsorption holes 126. In a specific embodiment, there can be a plurality of adsorption holes 126, and each adsorption hole 126 is provided with a suction cup 123, so that when the air bag assembly 12 reaches the preset position, the two adsorption members 122 arranged opposite to each other approach each other and adsorb the air bag through the suction cups 123, and the air bag is pulled open by the adsorption members 122 moving away from each other.

[0046] It can be understood that the structure in which the suction holes 126 are all provided with suction cups 123 is schematic. In other embodiments, the specific number of suction cups 123 can be selected according to the specific air bag, and the present disclosure does not limit it.

[0047] In order to facilitate the injection of liquid into the air bag by the injection mechanism 1, in some feasible embodiments, the battery injection device also includes an injection hole 124 for avoiding the injection tube. The injection hole 124 is arranged on the substrate 121 and between the two adsorption members 122. The injection module in the injection mechanism 1 extends the injection tube through the injection hole 124 to above the opening of the air bag through a pipeline, and the opening of the air bag is opened by multiple suction cups 123 on the two adsorption blocks 125. The electrolyte is injected into the air bag through the injection module. The injection module and the injection tube are both existing equipment, and their specific structures are not repeated in this disclosure.

[0048] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0049] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0050] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A battery filling device, characterized in that: include: The liquid injection mechanism comprises a bracket and an air bag assembly capable of approaching or moving away from the bracket; as well as A bag-supporting mechanism, comprising a bag-supporting assembly, wherein the bag-supporting assembly is configured to be able to approach or move away from the support and support the air bag; The air bag pulling assembly is configured to pull open the supported air bag.

2. The battery liquid injection device according to claim 1, characterized in that: The air bag assembly can approach or move away from the bracket in a first direction; The support bag assembly is arranged below the air pulling bag assembly and can be close to or away from the bracket in a first direction.

3. The battery liquid filling device according to claim 2, characterized in that: The support bag assembly includes at least one mounting seat and at least one support bag group arranged on the mounting seat, the mounting seat is configured to be able to approach or move away from the bracket, and the support bag group is configured to be able to support the air bag.

4. The battery liquid filling device according to claim 3, characterized in that: The support bag group includes two support bars extending along the second direction, the two support bars are arranged on the mounting seat at intervals in the third direction, and at least one of the support bars in the support bag group can be close to or away from another support bar in the support bag group. Wherein, the first direction, the second direction and the third direction are arranged perpendicular to each other.

5. The battery liquid filling device according to claim 4, characterized in that: The battery filling device also includes a first driving member, which is disposed on the mounting seat and is configured to drive at least one of the support rods of the support bag group to move closer to or away from another support rod in the support bag group.

6. The battery liquid injection device according to claim 5, characterized in that: There are two first driving members, and the two first driving members are respectively located on the two mounting seats spaced apart in the second direction, and the output ends of the two first driving members in the second direction are arranged in the same direction, and the output ends of the two first driving members are respectively fixedly connected to the two ends of one of the support rods of the support bag group, and the two first driving members synchronously drive the support rod to approach or move away from the other support rod of the support bag group.

7. The battery liquid injection device according to claim 6, characterized in that: The first driving member also includes a first output end and a second output end arranged opposite to each other in a second direction, the first output end is provided with a first extension seat, the second output end is provided with a second extension seat, the first extension seat is provided with a first mounting position and a second mounting position in the second direction, the second extension seat is provided with a third mounting position and a fourth mounting position in the second direction, the first mounting position, the third mounting position, the second mounting position and the fourth mounting position are alternately arranged in the second direction, the number of the support bag groups is two, the two support rods of one of the support bag groups are respectively arranged at the first mounting position and the third mounting position, and the two support rods of the other support bag group are respectively arranged at the second mounting position and the fourth mounting position.

8. The battery liquid filling device according to claim 3, characterized in that: The bag-supporting mechanism further includes a driving assembly, and the driving assembly is used to drive the bag-supporting assembly to move along the first direction.

9. The battery liquid filling device according to claim 8, characterized in that: The driving assembly includes at least one mounting plate connected to the bracket and a second driving member arranged on the mounting plate, the output end of the second driving member is connected to the mounting seat, and the second driving member is configured to drive the mounting seat to move along the first direction.

10. The battery liquid filling device according to claim 9, characterized in that: The mounting plate is provided with a mounting portion, the bracket is provided with a matching portion matching with the mounting portion, and the mounting portion and the matching portion are fixedly connected to fix the mounting plate and the bracket.

11. The battery liquid filling device according to claim 9, characterized in that: The second driving member includes a driving cylinder and a guide support, the driving cylinder is fixedly connected to the mounting plate, the guide support is arranged on the mounting seat, the output end of the driving cylinder is fixedly connected to the mounting seat, and the side of the driving cylinder away from the mounting plate is slidably connected to the guide support in the first direction.

12. The battery liquid filling device according to claim 1, characterized in that: The air bag assembly comprises a substrate, which can approach or move away from the bracket in a first direction. At least two adsorption members are arranged on the substrate at intervals, and the at least two adsorption members can approach or move away from each other.

13. The battery liquid filling device according to claim 12, characterized in that: A plurality of suction cups spaced apart along the second direction are arranged on opposite sides of the two adsorbents.

14. The battery liquid filling device according to claim 13, characterized in that: The battery liquid injection device further comprises a liquid injection hole, which is arranged on the substrate and between the two adsorbents, and is used to avoid the liquid injection tube in the liquid injection mechanism.

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