Liquid injection device

Abstract

The utility model belongs to the technical field of batteries, and discloses a liquid injection device. The liquid injection device comprises a liquid injection mechanism and a position adjusting mechanism; the liquid injection mechanism comprises an injection part for injecting electrolyte into the battery; the position adjusting mechanism comprises a rotating assembly and a liquid injection translation assembly, the output end of the liquid injection translation assembly is connected with the injection part, and the liquid injection translation assembly is used for driving the injection part to move in a reciprocating mode in the first direction so as to be close to or away from the battery; the rotating assembly is used for driving the liquid injection translation assembly to rotate around the vertical axis, and the first direction is perpendicular to the vertical axis. Through cooperation of the rotating assembly and the liquid injection translation assembly, the injection position of the liquid injection mechanism can be freely adjusted within a circular range, the range of the injection position is enlarged, the position of the liquid injection mechanism can be better adjusted according to actual requirements, and therefore the liquid injection efficiency and quality are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially relates to a liquid injection device. BACKGROUND

[0002] The electrolyte injection process of square lithium battery is one of the important steps in the production process of lithium battery, and the purpose is to fill the lithium battery with suitable electrolyte and achieve good infiltration effect, so that the battery can be charged and discharged well.

[0003] The existing square battery liquid injection device has limited activity range of injection function structure when in use, and cannot adjust the injection position according to the actual situation, which affects the injection efficiency and quality. UTILITY MODEL CONTENT

[0004] The utility model discloses a liquid injection device can solve the problem of limited activity range of injection function.

[0005] In order to achieve this purpose, the utility model adopts the following technical scheme:

[0006] A liquid injection device comprises:

[0007] A liquid injection mechanism comprises a liquid injection member for injecting electrolyte into a battery;

[0008] A position adjustment mechanism comprises a rotating assembly and a liquid injection translation assembly, the output end of the liquid injection translation assembly is connected with the liquid injection member, the liquid injection translation assembly is used to drive the liquid injection member to reciprocate along a first direction to approach or move away from the battery, the rotating assembly is used to drive the liquid injection translation assembly to rotate around a vertical axis, and the first direction is perpendicular to the vertical axis.

[0009] As an optional solution of the above-mentioned liquid injection device, the liquid injection translation assembly comprises:

[0010] A translation mounting seat, the rotating assembly can drive the translation mounting seat to rotate around a vertical axis;

[0011] A liquid injection translation driving member is arranged in the translation mounting seat;

[0012] A liquid injection carrying member is arranged in the translation mounting seat and connected with the output end of the liquid injection translation driving member, the liquid injection member is arranged in the liquid injection carrying member, and the liquid injection translation driving member drives the liquid injection carrying member to move along the first direction, thereby driving the liquid injection member to reciprocate along the first direction;

[0013] The liquid injection carrying member comprises a limiting part, and the limiting part can cooperate with the translation mounting seat to limit the movement of the liquid injection carrying member along the first direction.

[0014] As an alternative to the above-mentioned liquid injection device, the position adjusting mechanism further comprises a lifting assembly, an output end of the lifting assembly is connected with the liquid injection translation assembly to drive the liquid injection translation assembly to move along the vertical direction, and the rotating assembly is used to drive the lifting assembly to rotate around the vertical axis to drive the liquid injection translation assembly and the injection member to rotate.

[0015] As an alternative to the above-mentioned liquid injection device, the position adjusting mechanism further comprises an adjusting mounting base, the adjusting mounting base is connected with the output end of the rotating assembly, the lifting assembly is arranged on the adjusting mounting base, and the liquid injection translation assembly is slidingly fitted with the adjusting mounting base along the vertical direction.

[0016] As an alternative to the above-mentioned liquid injection device, the liquid injection translation assembly is connected with at least one first sliding part, at least one second sliding part is arranged on the adjusting mounting base, and the first sliding part is slidingly fitted with the second sliding part.

[0017] One of the first sliding part and the second sliding part comprises a sliding block, and the other comprises a sliding rail or a sliding groove.

[0018] And / or, one of the first sliding part and the second sliding part comprises a guide rod, and the other comprises a guide sleeve, the guide rod slidingly penetrates the guide sleeve.

[0019] As an alternative to the above-mentioned liquid injection device, the liquid injection device further comprises a cleaning mechanism, the cleaning mechanism is arranged on one side of the rotating assembly, when the rotating assembly rotates around the vertical axis by a certain angle, the injection member faces the cleaning mechanism along the vertical direction, the rotating assembly can drive the liquid injection translation assembly to rotate, thereby driving the injection member to rotate to the cleaning mechanism, and the cleaning mechanism is used to clean the injection member.

[0020] As an alternative to the above-mentioned liquid injection device, the cleaning mechanism comprises:

[0021] a cleaning tank for containing a cleaning solution;

[0022] a cleaning member movably arranged in the cleaning tank;

[0023] a cleaning driving member connected with the cleaning member and used to drive the cleaning member to move in the cleaning tank to clean the injection member.

[0024] As an alternative to the above-mentioned liquid injection device, the cleaning member comprises a rotating member and a plurality of brush hairs arranged on the rotating member, and the rotating member is rotationally connected with the cleaning tank.

[0025] As an optional solution of the liquid injection device, the cleaning mechanism further comprises a cleaning translation assembly, an output end of the cleaning translation assembly is connected with the cleaning tank, and the cleaning tank is driven to be close to or away from the rotating assembly.

[0026] As an optional solution of the liquid injection device, the liquid injection device further comprises a conveying mechanism, the conveying mechanism is used for conveying the battery, and the cleaning mechanism and the rotating assembly are located on the same side of the battery along a conveying direction of the conveying mechanism.

[0027] The liquid injection device has the following beneficial effects:

[0028] In the liquid injection device, the injection position of the liquid injection mechanism can be adjusted at will in a circular range through cooperation of the rotating assembly and the liquid injection translation assembly, the range of the injection position is increased, the position of the liquid injection mechanism is adjusted according to actual requirements, and therefore the liquid injection efficiency and quality are ensured.

[0029] The injection member is cleaned through the cleaning mechanism, dirt and crystallization caused by multiple injection operations are avoided, the efficiency and quality of liquid injection are affected, and the production efficiency and qualified rate of the battery are improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a structural schematic view of the liquid injection device provided by the utility model;

[0031] Figure 2 is a structural schematic view of the position adjusting mechanism and the liquid injection mechanism provided by the utility model;

[0032] Figure 3 is a structural schematic view of the cleaning mechanism provided by the utility model.

[0033] In the drawings:

[0034] 100, base; 200, workbench; 300, liquid injection mechanism; 31, liquid storage tank; 32, liquid injection pipe; 33, liquid injection motor; 34, hydraulic pump; 35, injection member; 36, liquid injection mounting base; 400, position adjusting mechanism; 41, adjusting mounting base; 411, sliding groove; 42, lifting assembly; 43, liquid injection translation assembly; 431, liquid injection translation driving piece; 432, translation mounting base; 433, liquid injection bearing piece; 4331, limiting portion; 44, sliding block; 451, guide rod; 452, guide sleeve; 46, rotating assembly; 500, conveying mechanism; 600, cleaning mechanism; 61, cleaning tank; 62, cleaning driving piece; 63, sliding seat; 631, sliding bottom plate; 632, supporting column; 64, cleaning translation assembly; 65, cleaning member; 651, rotating piece; 6511, rotating portion; 6512, rotating arm; 652, brush. DETAILED DESCRIPTION

[0035] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model and are not a limitation of the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description, not all the structures.

[0036] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0037] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0038] In the description of the embodiment, the terms "up", "down", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation of the utility model. In addition, the terms "first", "second" are only used to distinguish in description, and have no special meaning.

[0039] As Figure 1 shown, the embodiment provides a liquid injection device for injecting electrolyte into a battery. Specifically, the liquid injection device comprises a liquid injection mechanism 300 and a conveying mechanism 500, the liquid injection mechanism 300 comprises a liquid injection member 35 for injecting electrolyte into the battery, and the conveying mechanism 500 is used to convey the battery to the liquid injection mechanism 300 to convey the battery to be injected to the liquid injection mechanism 300, and convey the battery after the injection is completed.

[0040] In some embodiments, the conveying mechanism 500 comprises a belt conveying assembly which carries the battery by a conveying belt and realizes the transmission of the battery.

[0041] In other embodiments, the belt conveying assembly can be replaced by other conveying structures, such as a chain conveying assembly or a roller conveying assembly.

[0042] In actual liquid injection process, due to the error in the position of the battery on the conveying mechanism 500 and the different positions of the liquid injection port on different models of batteries, the movable range of the injection member 35 in the existing liquid injection device is limited, and the injection position cannot be adjusted according to the actual situation, which affects the injection efficiency and quality.

[0043] To solve the above problems, the liquid injection device further comprises a position adjusting mechanism 400 connected with the liquid injection mechanism 300, which is used to adjust the position of the injection member 35 to increase the movable range of the injection member 35, so that the injection position can be adjusted according to the actual situation to ensure the injection efficiency and quality.

[0044] The position adjusting mechanism 400 comprises a liquid injection translation assembly 43 and a rotating assembly 46. The output end of the liquid injection translation assembly 43 is connected with the injection member 35, and the liquid injection translation assembly 43 can drive the liquid injection mechanism 300 to reciprocate in a first direction, wherein the first direction is perpendicular to a vertical axis around which the rotating assembly 46 rotates, and is perpendicular to the transmission direction of the battery (for example, the transmission direction of the conveying mechanism 500 is the X direction, the vertical axis is the Z direction, and the first direction is the Y direction, as shown in FIG. 1). Figure 1 The rotating assembly 46 can drive the liquid injection translation assembly 43 and the liquid injection mechanism 300 to rotate around the vertical axis to drive the injection member 35 to rotate around the vertical axis. Through the cooperation of the rotating assembly 46 and the liquid injection translation assembly 43, the injection position of the liquid injection mechanism 300 can be adjusted arbitrarily within a circular range, which increases the range of the injection position to better adjust the position of the liquid injection mechanism 300 according to the actual demand, thereby ensuring the liquid injection efficiency and quality.

[0045] In some embodiments, the position adjusting mechanism 400 is located on one side of the conveying mechanism 500 along the conveying direction. As shown in FIG. 1, the transmission direction of the battery is the conveying direction of the conveying mechanism 500, such as the X direction in FIG. 1, the vertical axis around which the rotating assembly 46 rotates is in the vertical direction, such as the Z direction in FIG. 1, and the first direction is perpendicular to the X direction and the Z direction, such as the Y direction in FIG. 1, that is, the X direction and the Y direction are both horizontal directions, and the position adjusting mechanism 400 and the conveying mechanism 500 are arranged along the Y direction (the first direction). Figure 1 Figure 1 Figure 1 Figure 1

[0046] ​​​​Since the conveying mechanism 500 has a certain height, in order to facilitate the liquid injection mechanism 300 to inject electrolyte into the battery on the conveying mechanism 500, in some embodiments, the conveying mechanism 500 is further provided with a workbench 200 on one side, and the position adjusting mechanism 400 is arranged on the workbench 200 to raise the height of the liquid injection mechanism 300, thereby facilitating the cooperation between the liquid injection mechanism 300 and the battery on the conveying mechanism 500.

[0047] As shown in Figure 2 some embodiments, the liquid injection translation assembly 43 includes a translation mounting seat 432, a liquid injection translation driving member 431, and a liquid injection carrier 433. The rotation assembly 46 is configured to drive the translation mounting seat 432 to rotate around a vertical axis, and the liquid injection translation driving member 431 is arranged on the translation mounting seat 432. The liquid injection carrier 433 is connected to the output end of the liquid injection translation driving member 431, and the injection member 35 is arranged on the liquid injection carrier 433. The injection member 35 is configured to cooperate with the battery to inject electrolyte into the battery. By arranging the translation mounting seat 432, the modularity of the liquid injection translation assembly 43 can be improved, and the structural arrangement is more reasonable and compact. The liquid injection carrier 433 is configured to drive the injection member 35 to move, which facilitates the connection of the injection member 35 and improves the stress uniformity and the stability of the movement of the injection member 35.

[0048] In order to improve the structural reliability, in some embodiments, the liquid injection carrier 433 includes a limiting portion 4331, which can cooperate with the translation mounting seat 432 to limit the movement of the translation carrier. Specifically, when the liquid injection translation driving member 431 drives the liquid injection carrier 433 to move away from the conveying mechanism 500 along the first direction Y, the limiting portion 4331 can abut against the translation mounting seat 432 to limit the extreme position of the liquid injection carrier 433 on the translation mounting seat 432, thereby limiting the extreme position of the injection member 35 moving away from the conveying mechanism 500 along the first direction Y, and avoiding damage caused by interference between the injection member 35 and other structures.

[0049] Optionally, the limiting portion 4331 can be a protruding structure, as long as it can abut against the translation mounting seat 432 along the movement direction of the output end of the liquid injection translation driving member 431 (the first direction Y).

[0050] In some embodiments, the liquid injection carrier 433 and the translation mounting seat 432 are slidingly fitted to provide guidance for the movement of the injection member 35.

[0051] Optionally, the liquid injection carrier 433 and the translation mounting seat 432 can be slidingly fitted through a slider rail structure or a slider slot structure.

[0052] In some embodiments, the liquid injection translation driving member 431 can be a pneumatic cylinder, a hydraulic cylinder or a linear motor. The liquid injection translation driving member 431 can also be a linear motion output mechanism composed of a motor and a gear rack structure or a screw nut mechanism.

[0053] In some embodiments, the position adjustment mechanism 400 further comprises a lifting assembly 42, an output end of the lifting assembly 42 being connected with the liquid injection translation assembly 43. The rotating assembly 46 is capable of driving the lifting assembly 42 to rotate around a vertical axis, thereby driving the liquid injection translation assembly 43 and the injection member 35 to rotate around the vertical axis. By providing the lifting assembly 42, the liquid injection translation assembly 43 and the liquid injection mechanism 300 can be driven to lift, so that the injection member 35 can be driven to descend to cooperate with the battery when liquid injection is required, and the injection member 35 can be driven to ascend to separate from the battery after the liquid injection is completed.

[0054] In order to reasonably arrange the components of the position adjustment mechanism 400, in some embodiments, the position adjustment mechanism 400 further comprises an adjusting mounting base 41, the adjusting mounting base 41 being connected with an output end of the rotating assembly 46, and the lifting assembly 42 being arranged on the adjusting mounting base 41. By providing the adjusting mounting base 41, the lifting assembly 42 and the liquid injection translation assembly 43 are arranged, sufficient mounting space is provided for the lifting assembly 42 and the liquid injection translation assembly 43, and the rotating assembly 46 is capable of driving the lifting assembly 42, the liquid injection translation assembly 43 and the injection member 35 connected with the liquid injection translation assembly 43 to rotate by driving the adjusting mounting base 41 to rotate, thereby improving the modular degree of the position adjustment mechanism 400.

[0055] In some embodiments, the adjusting mounting base 41 comprises a top plate, a bottom plate and a side plate connecting the top plate and the bottom plate, the top plate, the bottom plate and the side plate substantially form a U shape, the opening of the U shape facing the conveying mechanism 500, the lifting assembly 42 being arranged on the bottom plate, and the lifting assembly 42 and the liquid injection translation assembly 43 being located between the top plate and the bottom plate, the output end of the liquid injection translation assembly 43 extending through the opening of the U shape. The adjusting mounting base 41 accommodates the lifting assembly 42 and the liquid injection translation assembly 43 in a semi-enclosed manner, which can protect the lifting assembly 42 and the liquid injection translation assembly 43 and facilitate the maintenance of the lifting assembly 42 and the liquid injection translation assembly 43.

[0056] In some embodiments, the side edge of the bottom plate away from the side plate extends upward to form a limiting plate, the limiting plate being capable of cooperating with the side plate to limit the position of the lifting assembly 42. It can be understood that the height of the limiting plate is less than the height of the side plate, so that the top end of the limiting plate is spaced apart from the top plate, thereby facilitating the extension of the liquid injection translation assembly 43.

[0057] In some embodiments, the adjusting mounting base 41 is an integrally formed structure, so as to reduce the number of parts, simplify the assembly and reduce the cost.

[0058] To improve the stability of the lifting of the liquid injection translation assembly 43, in some embodiments, the liquid injection translation assembly 43 is slidably connected with the adjusting mounting seat 41 in the vertical direction. Alternatively, the liquid injection translation assembly 43 can be slidably connected with the side plate in the vertical direction to guide the lifting of the liquid injection translation assembly 43.

[0059] Specifically, the liquid injection translation assembly 43 is connected with a first sliding part, and the adjusting mounting seat 41 is provided with a second sliding part. The first sliding part and the second sliding part are slidably connected to limit the movement direction of the liquid injection translation assembly 43 and improve the stability.

[0060] In some embodiments, one of the first sliding part and the second sliding part is a sliding block 44, and the other is a sliding rail or a sliding groove 411. The guiding is achieved by the cooperation of the sliding block 44 and the sliding rail or the sliding groove 411.

[0061] In some embodiments, one of the first sliding part and the second sliding part is a guide rod 451, and the other is a guide sleeve 452. The guide rod 451 is slidably arranged in the guide sleeve 452.

[0062] In other embodiments, at least two first sliding parts are provided, and the first sliding parts and the second sliding parts are correspondingly arranged. At least part of the first sliding parts and the second sliding parts are guided by the cooperation of the sliding block 44 and the sliding rail or the sliding groove 411, and at least part of the first sliding parts and the second sliding parts are guided by the cooperation of the guide rod 451 and the guide sleeve 452.

[0063] In some embodiments, the lifting assembly 42 includes a pneumatic cylinder, a hydraulic cylinder or a linear motor. The lifting assembly 42 can also be a linear motion output mechanism composed of a motor and a gear rack structure or a screw nut mechanism.

[0064] In some embodiments, the injection mechanism further includes a liquid storage tank 31, a hydraulic pump 34 and an injection motor 33. The hydraulic pump 34 is in communication with the liquid storage tank 31 through an injection pipe 32. The injection component 35 is connected with the hydraulic pump 34. The injection motor 33 is connected with the hydraulic pump 34 to drive the hydraulic pump 34 to work. During the injection, the electrolyte is pumped from the liquid storage tank 31 to the injection component 35 by the hydraulic pump 34 to inject the electrolyte into the battery.

[0065] In some embodiments, the injection mechanism 300 further includes an injection mounting seat 36. The injection component 35, the hydraulic pump 34 and the injection motor 33 are arranged on the injection mounting seat 36. The injection mounting seat 36 is connected with the output end of the liquid injection translation assembly 43.

[0066] In some embodiments, the liquid storage tank 31 is arranged on the adjusting mounting seat 41, specifically on the top plate, to reduce the weight of the liquid injection translation assembly 43, thereby reducing the power and energy consumption of the liquid injection translation assembly 43.

[0067] In order to avoid the injection tube 32 affecting the movement of the injection part 35 under the drive of the injection translation component 43, the injection tube 32 can have a certain spare length, or the injection tube 32 can be a telescopic tube, so as to meet the movement requirements of the injection part 35.

[0068] After a period of use, the existing injection part 35 will become clogged and contaminated with crystals, affecting injection efficiency and quality.

[0069] To solve the above problems, combined with Figure 1 As shown, the injection device also includes a cleaning mechanism 600, which is located on one side of the rotating assembly 46. The rotating assembly 46 drives the injection piece 35 to rotate, so that the injection piece 35 faces the cleaning mechanism 600 in the vertical direction, thereby cleaning the injection piece 35. By cleaning the injection piece 35, dirt and crystals are prevented from forming on the injection piece 35 due to repeated injection operations, which would affect the injection efficiency and quality, and improve the battery production efficiency and yield.

[0070] Specifically, the cleaning mechanism 600 and the rotating assembly 46 are located on the same side of the conveying direction of the conveying mechanism 500, so that the injection component 35 can cooperate with the cleaning mechanism 600 and the battery on the conveying mechanism 500.

[0071] In some embodiments, such as Figure 3 As shown, the cleaning mechanism 600 includes a cleaning tank 61, a cleaning component 65, and a cleaning drive component 62. The cleaning tank 61 holds the cleaning solution; the cleaning component 65 is movably disposed within the cleaning tank 61; the cleaning drive component 62 is connected to the cleaning component 65 and drives the cleaning component 65 to move within the cleaning tank 61 to clean the injection mechanism 300. When it is necessary to clean the injection component 35, the position adjustment mechanism 400 adjusts the injection component 35 above the cleaning tank 61 and adjusts the height of the injection component 35 so that the injection component 35 contacts the cleaning component 65 within the cleaning tank 61. The cleaning solution can wet the injection port of the injection component 35, and the cleaning drive component 62 drives the cleaning component 65 to move, achieving the purpose of cleaning the injection port and preventing dirt or crystallization from affecting the efficiency and quality of the injection.

[0072] In some embodiments, the cleaning component 65 is rotatably disposed within the cleaning tank 61, and the cleaning component 65 contacts the injection component 35 multiple times through rotation, thereby achieving the cleaning purpose.

[0073] Optionally, the cleaning drive 62 is a rotary motor, or the cleaning drive 62 includes a rotary motor and a gear assembly with transmission cooperation, both of which can drive the cleaning component 65 to rotate.

[0074] In some embodiments, the cleaning member 65 comprises a rotating member 651 and a plurality of brush clusters 652 arranged on the rotating member 651, and the rotating member 651 is rotationally connected to the cleaning tank 61. When the rotating member 651 rotates, the brush clusters 652 can be driven to clean the injection member 35.

[0075] Optionally, the rotating member 651 comprises a rotating portion 6511 and a plurality of rotating arms 6512 arranged circumferentially around the rotating portion 6511, and the rotating arms 6512 are connected to the rotating portion 6511. Each of the rotating arms 6512 is provided with a plurality of brush clusters 652 to sufficiently clean the injection member 35.

[0076] In some embodiments, the brush clusters 652 can also be replaced by other structures such as cleaning sponges that can achieve cleaning effect.

[0077] In some embodiments, the cleaning mechanism 600 further comprises a cleaning translation assembly 64, and an output end of the cleaning translation assembly 64 is connected to the cleaning tank 61 to drive the cleaning tank 61 to move close to or away from the rotating assembly 46. By arranging the cleaning translation assembly 64, the distance between the cleaning tank 61 and the injection member 35 can be adjusted when the injection member 35 needs to be cleaned, so as to ensure the cleaning effect.

[0078] In some embodiments, the cleaning mechanism 600 further comprises a sliding seat 63, and the sliding seat 63 is slidingly arranged on the workbench 200. The cleaning driving member 62 is arranged on the sliding seat 63, and the cleaning translation assembly 64 is connected to the sliding seat 63. The sliding seat 63 can be driven to move, and the cleaning tank 61 can be driven to move to achieve the position adjustment of the cleaning tank 61.

[0079] It can be understood that the sliding direction of the sliding seat 63 is the vertical direction Z.

[0080] In some embodiments, the sliding seat 63 comprises a sliding bottom plate 631 and a plurality of support columns 632. The sliding bottom plate 631 is slidingly connected to the workbench 200, and the plurality of support columns 632 are arranged at intervals along the circumference of the cleaning tank 61. One end of the support column 632 is connected to the sliding bottom plate 631, and the other end is connected to the cleaning tank 61 to fix the cleaning tank 61. The output end of the cleaning translation assembly 64 can be connected to the sliding bottom plate 631.

[0081] Optionally, the cleaning driving member 62 is arranged on the sliding bottom plate 631 and located in the space surrounded by the plurality of support columns 632, so that the structure of the cleaning mechanism 600 is more compact.

[0082] In some embodiments, the cleaning translation assembly 64 comprises a pneumatic cylinder, a hydraulic cylinder or a linear motor. The cleaning translation assembly 64 can also be a linear motion output mechanism composed of a motor and a gear rack structure or a lead screw nut mechanism.

[0083] In some embodiments, the liquid injection device further comprises a base 100, and the workbench 200 and the conveying mechanism 500 are arranged on the base 100, so as to improve the modular degree.

[0084] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent substitution and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.

Claims

1. A liquid injection device characterized by comprising: The application relates to a battery liquid injection mechanism. The battery liquid injection mechanism comprises a liquid injection mechanism (300) and a position adjusting mechanism (400). The position adjusting mechanism (400) comprises a rotating assembly (46) and a liquid injection translation assembly (43), the output end of the liquid injection translation assembly (43) is connected with the liquid injection element (35), the liquid injection translation assembly (43) is used for driving the liquid injection element (35) to reciprocate along a first direction to approach or move away from the battery, and the rotating assembly (46) is used for driving the liquid injection translation assembly (43) to rotate around a vertical axis, and the first direction is perpendicular to the vertical axis.

2. The liquid injection apparatus according to claim 1, wherein The liquid injection translation assembly (43) comprises a translation mounting base (432), the rotating assembly (46) can drive the translation mounting base (432) to rotate around a vertical axis, a liquid injection translation driving element (431) is arranged on the translation mounting base (432), and a liquid injection carrying element (433) is arranged on the translation mounting base (432) and connected with the output end of the liquid injection translation driving element. The liquid injection carrying element (433) comprises a limiting part (4331), the limiting part (4331) can cooperate with the translation mounting base (432) to limit the movement of the liquid injection carrying element (433) along the first direction. The position adjusting mechanism (400) further comprises a lifting assembly (42), the output end of the lifting assembly (42) is connected with the liquid injection translation assembly (43) to drive the liquid injection translation assembly (43) to move along a vertical direction, and the rotating assembly (46) is used for driving the lifting assembly (42) to rotate around a vertical axis to drive the liquid injection translation assembly (43) and the liquid injection element (35) to rotate. The position adjusting mechanism (400) further comprises an adjusting mounting base (41), the adjusting mounting base (41) is connected with the output end of the rotating assembly (46), the lifting assembly (42) is arranged on the adjusting mounting base (41), and the liquid injection translation assembly (43) is slidably connected with the adjusting mounting base (41) along the vertical direction. The liquid injection translation assembly (43) is connected with at least one first sliding part, at least one second sliding part is arranged on the adjusting mounting base (41), the first sliding part is slidably connected with the second sliding part.

3. The liquid injection apparatus according to claim 1, wherein One of the first sliding part and the second sliding part comprises a sliding block (44), and the other comprises a sliding rail or a sliding groove (411).

4. The liquid injection apparatus according to claim 3, wherein And / or, one of the first sliding part and the second sliding part comprises a guide rod (451), and the other comprises a guide sleeve (452), the guide rod (451) is slidably arranged in the guide sleeve (452).

5. The liquid injection apparatus according to claim 4, wherein ​ ​ ​ 6. The liquid infusing device of any one of claims 1-5, wherein, The liquid injection device further comprises a cleaning mechanism (600) arranged at one side of the rotating assembly (46), and when the rotating assembly (46) rotates by a certain angle around the vertical axis, the injection member (35) is vertically opposite to the cleaning mechanism (600), the rotating assembly (46) can drive the liquid injection translation assembly (43) to rotate, thereby driving the injection member (35) to rotate to the cleaning mechanism (600), and the cleaning mechanism (600) is used for cleaning the injection member (35).

7. The liquid injection device according to claim 6, wherein The cleaning mechanism (600) comprises: a cleaning tank (61) for containing a cleaning solution; a cleaning member (65) movably arranged in the cleaning tank (61); a cleaning driving member (62) connected with the cleaning member (65) and used for driving the cleaning member (65) to move in the cleaning tank (61) to clean the injection member (35).

8. The liquid injection device according to claim 7, wherein The cleaning member (65) comprises a rotating member (651) and a plurality of tufts of bristles (652) arranged on the rotating member (651), and the rotating member (651) is rotationally connected with the cleaning tank (61).

9. The liquid injection apparatus according to claim 7, wherein The cleaning mechanism (600) further comprises a cleaning translation assembly (64), and an output end of the cleaning translation assembly (64) is connected with the cleaning tank (61) and used for driving the cleaning tank (61) to move close to or away from the rotating assembly (46).

10. The liquid injection apparatus according to claim 6, wherein The liquid injection device further comprises a conveying mechanism (500) for conveying the battery, and the cleaning mechanism (600) and the rotating assembly (46) are located at the same side of the battery along the conveying direction of the conveying mechanism (500).

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