Liquid injection device and liquid injection system

Abstract

The present invention discloses a liquid injection device, including a carrying mechanism; a support mechanism having at least one accommodating position in which a battery can be placed; a flipping mechanism including a flipping component and a flipping carrier, the flipping component being connected to the carrying mechanism and the flipping carrier being connected to the flipping component; and a liquid injection mechanism disposed on the flipping carrier; wherein the flipping component can drive the flipping carrier to flip relative to the carrying mechanism so that the liquid injection mechanism can inject liquid into the battery in the accommodating position. Through the cooperative arrangement of the carrying mechanism, the support mechanism, the flipping mechanism and the liquid injection mechanism, the flipping component drives the flipping carrier and the liquid injection mechanism to flip relative to the carrying mechanism together. At this time, the battery is placed into the accommodating position, and then, the flipping component resets, and the liquid injection mechanism communicates with the battery and injects liquid; the side flipping method provides sufficient space for battery loading. In addition, the flipping method is simple and labor-saving in operation, greatly reducing the operation difficulty and improving the efficiency at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium batteries, and in particular, to a liquid injection device and a liquid injection system. Background Art

[0002] Lithium batteries are energy storage products with a wide range of applications, mainly relying on the advantages of high energy density, long life, good safety, and low price. Conventional lithium batteries generally consist of a positive electrode sheet, a negative electrode sheet, a separator, tabs, and an electrolyte. After the positive electrode sheet, the separator, and the negative electrode sheet are stacked and wound, the tabs are respectively welded to the positive electrode sheet and the negative electrode sheet to form a bare battery cell. Then, the bare battery cell is placed into a battery case, and finally, the electrolyte is injected into the battery case to form a battery.

[0003] The patent with the publication number CN214336876U records that by adjusting the screw rod, the height of the cross plate is adjusted so that the pressing valve can be aligned with the liquid inlet on the battery cell. At this time, the liquid injection cup is fixed by bolts through the thread of the movable plate, so that the liquid injection cup will not move in the up and down direction. Then, the electrolyte is injected through the liquid injection port, and the electrolyte will enter the ball valve through the connecting pipe, and then enter the battery cell through the liquid outlet nozzle to complete the liquid injection work. It can be seen that the existing liquid injection method is vertical liquid injection, and it is necessary to turn the screw rod to move the liquid injection cup up and down. Since the stroke of the up and down movement is limited, the distance between the battery cell and the liquid injection cup is small, which is not conducive to the loading and unloading of the battery cell. Secondly, the method of turning the screw rod is not only inefficient but also laborious, which is not conducive to the actual operation of production. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a liquid injection device and a liquid injection system.

[0005] A liquid injection device disclosed by the present invention includes:

[0006] A carrying mechanism;

[0007] A supporting mechanism having at least one accommodating position in which a battery can be placed;

[0008] A flipping mechanism including a flipping component and a flipping carrier. The flipping component is connected to the carrying mechanism, and the flipping carrier is connected to the flipping component; and

[0009] A liquid injection mechanism provided on the flipping carrier;

[0010] Wherein, the flipping component can drive the flipping carrier to flip relative to the carrying mechanism so that the liquid injection mechanism can inject liquid into the battery in the accommodating position.

[0011] According to an embodiment of the present invention, the flipping assembly includes a flipping member, a limiting member, and a first flipping support member. The first flipping support member is disposed on the carrying mechanism, the limiting member is disposed on the first flipping support member. The flipping member includes a flipping plate and a limiting plate. The flipping plate is rotatably connected to the first flipping support member, and the limiting plate extends towards the outside of the flipping plate. Among them,

[0012] In the flipped-up state, the limiting plate abuts against the limiting member, so that the flipping member stays in the flipped-up position.

[0013] According to an embodiment of the present invention, the limiting plate has a first inclined surface, and the limiting member has a first avoidance area. The first inclined surface is located within the first avoidance area. In the flipped-up state, the first inclined surface abuts against the side wall of the first avoidance area.

[0014] According to an embodiment of the present invention, the flipping assembly further includes a flipping fixing member. The flipping fixing member is rotatably disposed on one side of the flipping plate. The flipping fixing member and the first flipping support member are in the same plane, and one end of the flipping fixing member is rotatable to be engaged with the first flipping support member.

[0015] According to an embodiment of the present invention, the flipping assembly further includes a flipping elastic member. One end of the flipping elastic member is fixed to the flipping carrier, and the other end of the flipping elastic member is connected to the flipping fixing member. The flipping elastic member can push the flipping fixing member to be engaged with the first flipping support member.

[0016] According to an embodiment of the present invention, the support mechanism includes a support member. The support member is disposed on the carrying mechanism, and the support member has at least one accommodation position.

[0017] According to an embodiment of the present invention, in the height direction, the accommodation position penetrates through the support member, or the accommodation position is opened on the upper surface of the support member.

[0018] According to an embodiment of the present invention, the liquid injection mechanism includes a liquid injection tank. The liquid injection tank includes a tank body and a liquid guide pipe. The tank body is disposed on the flipping carrier, and one end of the liquid guide pipe is connected to the tank body, and the other end of the liquid guide pipe penetrates through the flipping carrier.

[0019] According to an embodiment of the present invention, the liquid injection mechanism further includes a liquid injection adjusting member and a liquid injection elastic member. The liquid injection adjusting member is disposed at the other end of the liquid guide pipe, and the liquid injection elastic member is disposed between the liquid guide pipe and the flipping carrier. One end of the liquid injection elastic member is connected to the flipping carrier, and the other end of the liquid injection elastic member is connected to the liquid injection adjusting member.

[0020] A liquid injection system disclosed by the present invention includes: the above-mentioned liquid injection device.

[0021] The beneficial effects of the present invention are as follows. Through the coordinated setting of the bearing mechanism, the support mechanism, the flipping mechanism and the liquid injection mechanism, the flipping component drives the flipping carrier and the liquid injection mechanism to flip relative to the bearing mechanism together. At this time, the battery is placed into the accommodation position, and then, the flipping component resets, and the liquid injection mechanism communicates with the battery and injects liquid. The side flipping method provides sufficient space for battery feeding. In addition, the flipping method is simple and labor-saving in operation, greatly reducing the operation difficulty and improving the efficiency at the same time. Description of the Drawings

[0022] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0023] Figure 1 is a perspective view of the liquid injection device;

[0024] Figure 2 is another perspective view of the liquid injection device;

[0025] Figure 3 is a sectional view of the liquid injection device;

[0026] Figure 4 is a schematic perspective view of the flipping mechanism;

[0027] Figure 5 is another schematic perspective view of the flipping mechanism;

[0028] Figure 6 is a schematic perspective view of the flipping unit;

[0029] Figure 7 is another schematic perspective view of the flipping unit;

[0030] Figure 8 is a plan view of the flipping unit;

[0031] Figure 9 is a schematic perspective view of the flipping component;

[0032] Figure 10 is another schematic perspective view of the flipping component;

[0033] Figure 11 is a schematic perspective view of the flipping fixing member;

[0034] Figure 12 is a schematic perspective view of the flipping carrier;

[0035] Figure 13 is a perspective view of the liquid injection tank;

[0036] Figure 14Cross-sectional view of the liquid injection tank;

[0037] Figure 15 Another three-dimensional view of the support member;

[0038] Figure 16 Logic block diagram of the liquid injection system;

[0039] Figure 17 Three-dimensional view of the support mechanism;

[0040] Figure 18 Another three-dimensional view of the support mechanism;

[0041] Figure 19 Three-dimensional view of the lifting assembly;

[0042] Figure 20 Another three-dimensional view of the liquid injection device.

[0043] Explanation of reference numerals

[0044] 1 - Carrying mechanism; 11 - First carrying plate; 12 - Second carrying plate; 13 - Third carrying plate; 14 - Carrying handle;

[0045] 2 - Support mechanism; 21 - Accommodating position; 22 - Support member; 23 - Support column; 24 - Lifting assembly; 241 - Lifting drive member; 242 - Lifting transmission member; 2421 - Lifting transmission block; 2422 - Lifting transmission plate; 24221 - Plate body; 25 - Lifting support assembly; 251 - Lifting support member; 252 - Support guide member; 26 - Support adjustment assembly; 261 - First adjustment member; 262 - Second adjustment member; 263 - First guide groove; 264 - First connecting member; 265 - Third adjustment member; 266 - Accommodating position; 267 - Second guide groove; 268 - Second connecting member;

[0046] 3 - Flipping mechanism; 31 - Flipping assembly; 311 - Flipping unit; 3111 - Flipping member; 31111 - Flipping plate; 31112 - Limiting plate; 311121 - First limiting section; 311122 - Second limiting section; 311123 - First inclined surface; 31113 - Flipping handle; 3112 - Limiting member; 31121 - First avoiding position area; 312 - First flipping support member; 3121 - Card slot; 313 - Flipping fixing member; 3131 - Fixing block; 3132 - Second inclined surface; 3133 - Limiting column; 314 - Flipping elastic member; 315 - Second flipping support member; 32 - Flipping carrying member; 321 - Second avoiding position area; 322 - Accommodating hole;

[0047] 4 - Liquid injection mechanism; 41 - Liquid injection tank; 411 - Tank body; 4111 - Third inclined surface; 412 - Liquid guide pipe; 4121 - Fourth inclined surface; 42 - Liquid injection adjustment part; 421 - Liquid injection nozzle; 43 - Liquid injection elastic part; 44 - Lifting part;

[0048] 5 - Liquid storage part;

[0049] 6 - Power part;

[0050] 7 - Control part;

[0051] 8 - Liquid injection part;

[0052] 9 - Battery. Specific implementation manners

[0053] The following will disclose multiple implementation manners of the present invention with diagrams. For the sake of clear illustration, many practical details will be described together in the following narrative. However, it should be understood that these practical details are not used to limit the present invention. That is to say, in some implementation manners of the present invention, these practical details are not necessary. In addition, for the purpose of simplifying the diagrams, some conventional structures and components will be shown in a simple schematic manner in the diagrams.

[0054] In addition, in the present invention, descriptions such as "first", "second", etc. are only for descriptive purposes, and do not particularly refer to the meaning of order or sequence, nor are they used to limit the present invention. They are merely used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0055] Embodiment 1

[0056] As Figures 1 - 3 shown, Figure 1 is a perspective view of the liquid injection device; Figure 2 is another perspective view of the liquid injection device; Figure 3 is a cross-sectional view of the liquid injection device. The liquid injection device of the present application includes a bearing mechanism 1, a support mechanism 2, a flipping mechanism 3 and a liquid injection mechanism 4. The flipping mechanism 3 is arranged on the bearing mechanism 1, and the liquid injection mechanism 4 is arranged on the flipping mechanism 3; the battery is placed on the support mechanism 2, and the flipping mechanism 3 can drive the liquid injection mechanism 4 to perform a flipping motion. When the liquid injection mechanism 4 contacts the battery, the electrolyte in the liquid injection mechanism 4 can be injected into the battery.

[0057] In specific applications, the bearing mechanism 1 includes a first bearing plate 11 and a second bearing plate 12. The first bearing plate 11 and the second bearing plate 12 are arranged oppositely. The flipping mechanism 3 is arranged on the first bearing plate 11 and the second bearing plate 12. The supporting mechanism 2 is located between the first bearing plate 11 and the second bearing plate 12. The first bearing plate 11 and the second bearing plate 12 play a bearing role for the flipping mechanism 3 and the liquid injection mechanism 4. Further, the bearing mechanism 1 further includes a third bearing plate 13. The third bearing plate 13 is located between the first bearing plate 11 and the second bearing plate 12, and the third bearing plate 13 is respectively connected to the first bearing plate 11 and the second bearing plate 12. The supporting mechanism 2 is arranged on the third bearing plate 13. In this way, it is convenient to move the entire liquid injection device and improve the convenience of using the liquid injection device. Furthermore, the bearing mechanism 1 further includes a bearing handle 14. The bearing handle 14 is arranged on both the first bearing plate 11 and the second bearing plate 12. Through the arrangement of the bearing handle 14, it is more beneficial to apply force to the liquid injection device, and then move the liquid injection device.

[0058] Please review Figures 1 - 3 The supporting mechanism 2 includes a supporting member 22. The supporting member 22 is connected to at least one of the first bearing plate 11 and the second bearing plate 12. At the same time, at least one accommodating position 21 is provided on the supporting member 22. The battery is placed in the accommodating position 21. In specific applications, the accommodating position 21 is opened in a way that penetrates the supporting member 22, that is, the side wall of the accommodating position 21 contacts the side of the battery. In addition, in order to facilitate the taking and placing of the battery from the accommodating position 21 and increase the contact area between the accommodating position 21 and the battery to enhance the support and stability of the battery, in this embodiment, the accommodating position 21 is an open slot, and the cross-section of the accommodating position 21 is U-shaped; by providing a plurality of accommodating positions 21, it is convenient to inject liquid into a plurality of batteries at the same time and improve the production efficiency. Further, both sides of the supporting member 22 are detachably connected to the first bearing plate 11 and the second bearing plate 12, which is convenient for subsequent maintenance and replacement, and can also replace the supporting member 22 with more or fewer accommodating positions 21 according to needs. Furthermore, the supporting mechanism 2 further includes a support column 23. The support column 23 is arranged on the third bearing plate 13, and the support column 23 connects the supporting member 22. Through the support column 23, the stability of the supporting member 22 and the stability when the battery is placed are improved.

[0059] As Figures 4 - 5 shown, Figure 4 is a three-dimensional structural schematic diagram of the flipping mechanism 3; Figure 5 is another three-dimensional structural schematic diagram of the flipping mechanism 3. The flipping mechanism 3 includes a flipping assembly 31 and a flipping carrier 32. The flipping assembly 31 is arranged on the first bearing plate 11 and / or the second bearing plate 12. The flipping carrier 32 is connected to the flipping assembly 31. The liquid injection mechanism 4 is arranged on the flipping carrier 32.

[0060] Refer to together withFigures 6 - 8 As shown Figure 6 is a schematic three-dimensional structure diagram of the flipping unit 311; Figure 7 is another schematic three-dimensional structure diagram of the flipping unit 311; Figure 8 is a schematic plan view of the flipping unit 311. The flipping assembly 31 includes a flipping unit 311 and a first flipping support 312. The first flipping support 312 is disposed on the first carrier plate 11 and / or the second carrier plate 12. The flipping unit 311 includes a flipping member 31111 and a limiting member 3112. The flipping member 31111 is rotatably connected to the first flipping support 312. Specifically, the flipping member 31111 is rotatably connected to the first flipping support 312 through a connecting shaft (not marked in the figure). The limiting member 3112 is disposed on one side of the first flipping support 312. The limiting member 3112 is disposed opposite to the flipping member 31111, and the rotation of the flipping member 31111 is limited by the limiting member 3112.

[0061] The flipping member 31111 includes a flipping plate 31111 and a limiting plate 31112. The flipping plate 31111 is rotatably disposed on the first flipping support 312. The flipping plate 31111 is connected to the limiting plate 31112. At the same time, the limiting plate 31112 extends outward from the flipping plate 31111, that is, the limiting plate 31112 protrudes from the flipping plate 31111; the limiting plate 31112 is disposed opposite to the limiting member 3112, and the flipping plate 31111 and the limiting plate 31112 rotate together. When the limiting plate 31112 abuts against the limiting member 3112, the flipping plate 31111 stops rotating. Specifically, the limiting plate 31112 has a first inclined surface 311123 facing the limiting member 3112. When the first inclined surface 311123 abuts against the limiting member 3112, the flipping plate 31111 cannot rotate further, and the rotation angle of the flipping plate 31111 can be determined by the first inclined surface 311123. In this embodiment, the rotation angle of the flipping plate 31111 is 40°.

[0062] One side of the limiting member 3112 facing the flipping member 31111 has a first avoidance area 31121. The first inclined surface 311123 is located within the first avoidance area 31121, and the limiting plate 31112 can rotate within the first avoidance area 31121. When the first inclined surface 311123 abuts against the side wall of the first avoidance area 31121, it cannot continue to rotate in the same direction. In specific applications, the angle formed between the first inclined surface 311123 and the side wall of the first avoidance area 31121 is the angle by which the flipping plate 31111 can rotate. That is to say, when in the fallen state, the angle between the first inclined surface 311123 and the side wall of the first avoidance area 31121 is 40°, then the maximum angle by which the flipping plate 31111 can rotate is 40°; when in the lifted state, the angle between the first inclined surface 311123 and the side wall of the first avoidance area 31121 is 0°, then the flipping plate 31111 cannot continue to rotate in the same direction. Through the setting of the first avoidance area 31121, it is beneficial to reduce costs and simplify the structure.

[0063] Further, the flipping member 31111 further includes a flipping handle 31113. The flipping handle 31113 is located on the side of the flipping plate 31111 away from the limiting plate 31112. At the same time, the flipping handle 31113 also extends towards the outside of the flipping plate 31111. Driving the flipping plate 31111 to rotate through the flipping handle 31113 is beneficial for the force applied externally to act better on the flipping member 31111.

[0064] Also refer to Figures 9 - 11 shown in Figure 9 a three-dimensional structural schematic diagram of the flipping assembly 31; Figure 10 another three-dimensional structural schematic diagram of the flipping assembly 31; Figure 11Schematic diagram of the three-dimensional structure of the flipping fixing member 313. The flipping assembly 31 further includes a flipping fixing member 313 and a flipping elastic member 314. The flipping fixing member 313 is rotatably arranged on one side of the flipping plate 31111. The flipping elastic member 314 is connected to the flipping fixing member 313. One end of the flipping fixing member 313 is rotatable to be engaged with the first flipping support member 312. Specifically, the flipping fixing member 313 is rotatably connected to the flipping plate 31111 through a rotating connection shaft (not marked in the figure). Further, a fixing block 3131 is provided at one end of the flipping fixing member 313 close to the first flipping support member 312, and a slot 3121 is provided on the first flipping support member 312. Since the flipping fixing member 313 and the first flipping support member 312 are in the same plane, and at the same time, the fixing block 3131 is adapted to the slot 3121, the fixing block 3131 can be inserted into the slot 3121, making the flipping plate 31111 and the first flipping support member 312 relatively stationary and unable to move. Furthermore, the flipping fixing member 313 is also provided with a second inclined surface 3132 and a limiting post 3133 on the second inclined surface 3132. The flipping elastic member 314 is sleeved on the limiting post 3133. In specific applications, one end of the flipping elastic member 314 is connected to the flipping carrier 32, and the other end of the flipping elastic member 314 abuts against the second inclined surface 3132. When a force is applied to the end of the flipping fixing member 313 away from the first flipping support member 312, the flipping fixing member 313 rotates relative to the flipping plate 31111. At this time, the second inclined surface 3132 compresses the flipping elastic member 314, causing the fixing block 3131 to disengage from the slot 3121, so that the flipping member 31111 can be rotated to the flipped-up state; when the applied force is removed, the elastic force generated by the self-resetting of the flipping elastic member 314 pushes the flipping fixing member 313 to rotate, and the fixing block 3131 moves in the direction close to the first flipping support member 312, enabling the fixing block 3131 to be inserted into the slot 3121. The elastic force of the flipping elastic member 314 continuously acts on the flipping fixing member 313, further strengthening the clamping effect between the fixing block 3131 and the slot 3121, making the connection between the flipping fixing member 313 and the first flipping support member 312 more stable. Through the setting of the second inclined surface 3132, the force during the rotation of the flipping fixing member 313 is basically transmitted in the direction of the flipping elastic member 314. At the same time, with the position limitation of the flipping elastic member 314 by the limiting post 3133, the force can be transmitted better. Specifically, the flipping elastic member 314 is a spring. Further explanation, one end of the flipping elastic member 314 can be connected and fixed to other components, or it can be a structure extended from the flipping plate 31111 and fixedly connected to the flipping elastic member 314, and no specific limitation is made on this.

[0065] Further, the flipping component 31 further includes a second flipping support 315. The second flipping support 315 is disposed on the side of the limiting member 3112 away from the first flipping support 312. Both sides of the flipping plate 31111 are rotatably connected to the first flipping support 312 and the second flipping support 315 respectively. Specifically, a connecting shaft passes through the first support 312, the flipping plate 31111, and the second flipping support 315, enabling the flipping plate 31111 to rotate relative to the first flipping support 312 and the second flipping support 315. By jointly supporting the flipping plate 31111 with the first flipping support 312 and the second flipping support 315, the stability of the flipping plate 31111 during rotation is improved.

[0066] The flipping component 31 has two states, namely the flipped-up state and the flipped-down state. Specifically:

[0067] Flipped-up state: The flipping plate 31111 and the limiting plate 31112 rotate relative to the first flipping support 312 together. At this time, the first inclined surface 311123 rotates towards the direction close to the limiting member 3112. When the first inclined surface 311123 abuts against the limiting member 3112, the flipping plate 31111 can no longer rotate, and then battery feeding can be performed.

[0068] Flipped-down state: The flipping plate 31111 and the limiting plate 31112 rotate relative to the first flipping support 312 together. At this time, the first inclined surface 311123 rotates towards the direction away from the limiting member 3112, and the first inclined surface 311123 does not contact the limiting member 3112. After the fixing block 3131 is inserted into the card slot 3121, the flipping plate 31111 can no longer rotate, and then battery liquid injection can be performed.

[0069] Refer to Figure 12 as shown in Figure 12 which is a three-dimensional structural schematic diagram of the flipping carrier 32. The flipping carrier 32 is provided with a second avoidance area 321. The flipping fixing member 313 is located within the second avoidance area 321, that is, the flipping fixing member 313 can rotate within the second avoidance area 321. Further, a receiving hole 322 is provided on the side wall of the second avoidance area 321. One end of the flipping elastic member 314 is located within the receiving hole 322. The setting of the receiving hole 322 not only plays a role in carrying the flipping elastic member 314 but also facilitates the position fixing of the flipping elastic member 314. That is, in the compressed or expanded state of the flipping elastic member 314, the force received or generated is transmitted along its own direction, making the rotation of the flipping fixing member 313 smoother and increasing the service life of the flipping elastic member 314. In addition, the settings of the second avoidance area 321 and the receiving hole 322 can both simplify the structure of the flipping mechanism 3, making the structure of the flipping mechanism 3 more compact and conducive to reducing the overall volume of the flipping mechanism 3.

[0070] In this embodiment, the number of the flipping components 31 is two. The two flipping components 31 are respectively located at both ends of the flipping carrier 32. One flipping component 31 is arranged on the first carrier plate 11, and the other flipping component 31 is arranged on the second carrier plate 12. The arrangement of the two flipping components 31 facilitates the stable flipping of the flipping carrier 32. In addition, when there is a large amount of electrolyte with heavy weight in the liquid injection mechanism 4, the arrangement of the two flipping components 31 is beneficial to improving the bearing capacity of the flipping carrier 32.

[0071] Please review Figures 1 - 3 and refer to Figures 13 - 14 , Figure 13 is a perspective view of the liquid injection tank 41; Figure 14It is a sectional view of the liquid injection tank 41. The liquid injection mechanism 4 includes a liquid injection tank 41. The liquid injection tank 41 is located on the flipping and carrying member 32. The liquid injection tank 41 is used to store electrolyte, and this electrolyte is used to be injected into the battery. The liquid injection tank 41 includes a tank body 411 and a liquid guiding pipe 412. The tank body 411 is arranged on the flipping and carrying member 32. One end of the liquid guiding pipe 412 is connected to and communicates with the tank body 411. The other end of the liquid guiding pipe 412 penetrates through the flipping and carrying member 32, and the electrolyte in the tank body 411 is discharged through the liquid guiding pipe 412. In this embodiment, a third inclined surface 4111 is provided on one side of the tank body 411 close to the liquid guiding pipe 412, and a fourth inclined surface 4121 is provided at the end of the liquid guiding pipe 412 away from the tank body 411. Synchronously setting the third inclined surface 4111 and the fourth inclined surface 4121 is beneficial to collecting and discharging the electrolyte in the tank body 411 and reducing the liquid injection time. Further, the liquid injection mechanism 4 further includes a liquid injection adjusting member 42 and a liquid injection elastic member 43. The liquid injection adjusting member 42 is sleeved on the outer surface of the liquid guiding pipe 412. The liquid injection adjusting member 42 is located between the liquid guiding pipe 412 and the flipping and carrying member 32. The liquid injection elastic member 43 is sleeved on the liquid guiding pipe 412, and one end of the liquid injection elastic member 43 is fixed, and the other end of the liquid injection elastic member 43 is connected to the liquid injection adjusting member 42. In specific application, threads are provided on the outer surface of the liquid guiding pipe 412, and the liquid injection adjusting member 42 is screwed to the liquid guiding pipe 412; a liquid injection nozzle 421 is sleeved at the end of the liquid guiding pipe 412 away from the tank body 411. The liquid injection nozzle 421 is adapted to the liquid injection port of the battery. Based on the detachable connection between the liquid injection nozzle 421 and the liquid guiding pipe 412, for different types of batteries, in order to improve the liquid injection effect, the liquid injection nozzle 421 can be replaced to adapt to batteries with different structures. Further, the liquid injection mechanism 4 further includes a lifting member 44. The lifting member 44 is located between the flipping and carrying member 32 and the tank body 411. The liquid guiding pipe 412 penetrates through the lifting member 44 and the flipping and carrying member 32. The tank body 411 is supported on the upper surface of the lifting member 44. One end of the liquid injection elastic member 43 is connected to the lower surface of the lifting member 44. Through the setting of the lifting member 44, it is convenient for the assembly of the liquid injection elastic member 43 and enhances the compression force on the liquid injection elastic member 43. Furthermore, the elastic force of the liquid injection elastic member 43 acting on the liquid injection adjusting member 42 is also enhanced. When injecting liquid, under the dual action of the gravity of the tank body 411 and the elastic force of the liquid injection elastic member 43, the liquid injection nozzle 421 is closely attached to the liquid injection port of the battery, improving its sealing performance and preventing liquid leakage. In addition, when the liquid injection nozzle 421 contacts the liquid injection port of the battery, at this time, the flipping fixing member 313 is acted on by the elastic force of the liquid injection elastic member 43, and the fixing block 3131 is tightly clamped with the card slot 3121, thereby restricting the position of the flipping and carrying member 32. Specifically, the number of the liquid injection mechanisms 4 can be multiple, and the specific number of the liquid injection mechanisms 4 corresponds to the accommodation positions 21 of the support mechanism 2, that is, one battery on one accommodation position 21 corresponds to one liquid injection mechanism 4. The liquid injection elastic member 43 is a spring; the liquid injection nozzle 421 can be a rubber nozzle.

[0072] Through the coordinated setting of the bearing mechanism 1, the support mechanism 2, the flipping mechanism 3 and the liquid injection mechanism 4, the flipping assembly drives the flipping carrier 32 and the liquid injection mechanism 4 to flip relative to the bearing mechanism 1 together. At this time, the battery is placed into the accommodation position 21, and then, the flipping assembly resets, and the liquid injection mechanism 4 communicates with the battery and injects liquid; the side flipping method provides sufficient space for battery feeding. In addition, the flipping method is simple and labor-saving in operation, greatly reducing the operation difficulty and improving the efficiency at the same time.

[0073] Embodiment 2

[0074] As Figure 15 shown Figure 15 is another three-dimensional view of the support member 22. The difference between this embodiment and Embodiment 1 is that the accommodation position 21 on the support member 22 is not a through setting. That is to say, in the height direction, the opening of the accommodation position 21 only occupies a partial area of the upper surface of the support member 22, forming a groove. By adopting this structure, the distance between the support member 22 and the third bearing plate 13 can be adjusted to adapt to batteries of different heights. In addition, since the common batteries on the market have differences not only in height but also in length and width, the size of the groove can be changed to adapt to batteries of different lengths and widths.

[0075] Embodiment 3

[0076] As Figure 16 shown Figure 16 is the logic block diagram of the liquid injection system. The liquid injection system includes a liquid storage part 5, a power part 6, a control part 7, a liquid injection part 8 and a battery 9. The liquid storage part 5 is connected to the power part 6, the control part 7 is connected to the power part 6, and the liquid injection part 8 is connected to the power part 6; the liquid storage part 5 is used to provide electrolyte, the power part 6 pumps out the electrolyte in the liquid storage part 5 and transports it to the liquid injection part 8, and the liquid injection part 8 then injects the electrolyte into the battery 9. The control part 7 is used to control the operation of the power part 6, mainly controlling the amount of electrolyte extracted by the power part 6 from the liquid storage part 5 and the amount of electrolyte transported by the power part 6 to the liquid injection part 8. In addition, in this embodiment, the liquid storage part 5 is a barrel for containing electrolyte; the power part 6 is a commercially available liquid injection pump; the control part 7 is a commercially available controller; the liquid injection part 8 is the liquid injection device in Embodiment 1. The liquid injection part 8 and the battery 9 work in a vacuum environment, so that a pressure difference is formed between the tank body 411 in the liquid injection mechanism 4 and the inside of the battery. Under the action of gravity, the electrolyte in the tank body 411 flows through the liquid injection nozzle 421 and then enters the battery interior, finally completing the battery liquid injection. By completing the liquid injection process in a vacuum environment, it is convenient to improve the liquid injection effect and prevent gas from entering the battery interior. Specifically, the pipeline for transporting the electrolyte is selected to be made of Teflon material.

[0077] In use, parameters are pre-input into the control unit 7 according to the capacity of the battery 9. The control unit 7 drives the power unit 6 to extract a specified amount of electrolyte from the liquid storage unit 5 according to the parameters, and transports the electrolyte to the tank body 411 of the liquid injection device. At the same time, the amount of electrolyte transported by the power unit 6 is also fed back to the control unit 7. After the amount of electrolyte transported by the power unit 6 reaches the specified amount, the control unit 7 issues a signal to make the power unit 6 stop working, so as to realize the closed-loop control of the whole system and ensure the accurate control of the liquid injection amount.

[0078] Embodiment 4

[0079] As Figures 17 - 20 shown, Figure 17 is a perspective view of the support mechanism 2; Figure 18 is another perspective view of the support mechanism 2; Figure 19 is a perspective view of the lifting component 24; Figure 20 is another perspective view of the liquid injection device. The difference between this embodiment and Embodiment 1 is that the support mechanism 2 includes a lifting component 24, a lifting support component 25, and a support adjustment component 26. The lifting component 24 is arranged on the third bearing plate 13. The lifting component 24 is connected to the lifting support component 25. The support adjustment component 26 is arranged on the side of the lifting support component 25 away from the lifting component 24; the battery is placed on the support adjustment component 26, and the lifting component 24 drives the support adjustment component 26 to move up and down through the lifting support component 25.

[0080] The lifting component 24 includes a lifting driving member 241 and a lifting transmission member 242. The lifting driving member 241 is connected to the lifting transmission member 242, and the lifting transmission member 242 is also connected to the lifting support component 25. The lifting transmission member 242 includes two lifting transmission blocks 2421 and two groups of lifting transmission plates 2422. Both lifting transmission blocks 2421 are connected to the lifting driving member 241. The two groups of lifting transmission plates 2422 are respectively arranged on both sides of the two lifting transmission blocks 2421. The lifting transmission plates 2422 are connected to the lifting support component 25. Specifically in application, the lifting driving member 241 is a handwheel structure. The handwheel structure includes a handwheel and a screw rod. The screw rod is provided with two threads with opposite helix directions. When the handwheel rotates forward and backward, the lifting support component 25 can be raised and lowered; the two lifting transmission blocks 2421 are respectively screwed to the two threads of the screw rod on the lifting driving member 241. When the handwheel is rotated, the two lifting transmission blocks 2421 move in opposite or opposite directions. In this embodiment, the lifting transmission plate 2422 is composed of four plate bodies 24221. The four plate bodies 24221 are connected end to end in sequence to form a quadrilateral, and the connection of each plate body 24221 is a hinge connection, that is, four hinge joints are formed. Among them, two opposite hinge joints are also connected to one side of the two lifting transmission blocks 2421. There is also a hinge joint connected with a connecting block, and the connecting block is connected to the lifting support component 25. The remaining hinge joint is connected with a support block.

[0081] The lifting and supporting assembly 25 includes a lifting and supporting member 251. One side of the lifting and supporting member 251 is connected to the connecting block of the lifting transmission member 242, and the other side of the lifting and supporting member 251 is connected to the support adjusting assembly 26. Further, the lifting and supporting assembly 25 further includes a plurality of support guiding members 252. The plurality of support guiding members 252 are spaced apart and distributed on the lifting and supporting member 251, and the lifting and supporting member 251 is slidably connected to the support guiding members 252. The arrangement of the plurality of support guiding members 252 is beneficial to improving the stability and position accuracy of the lifting and supporting member 251 during movement.

[0082] The support adjustment assembly 26 includes a first adjustment member 261 and a second adjustment member 262. Both the first adjustment member 261 and the second adjustment member 262 are located on the side of the lifting support member 251 away from the lifting drive member 241, and the first adjustment member 261 and the second adjustment member 262 are arranged at intervals. The interval between the first adjustment member 261 and the second adjustment member 262 is used to place the battery. Further, the first adjustment member 261 and / or the second adjustment member 262 is slidably connected to the lifting support member 251, and the other is fixedly connected to the lifting support member 251; or both the first adjustment member 261 and the second adjustment member 262 are slidably connected to the lifting support member 251; in this embodiment, both the first adjustment member 261 and the second adjustment member 262 can slide relative to the lifting support member 251. Further, both the first adjustment member 261 and the second adjustment member 262 are provided with a first guide groove 263 and a first connecting member 264. The first guide groove 263 is opened along the width direction, and the first connecting member 264 is arranged in the first guide groove 263. One end of the first connecting member 264 penetrates through the first guide groove 263 and is connected to the lifting support member 251. Specifically, the number of the first guide grooves 263 can be multiple, and the number of the first connecting members 264 corresponds to it. Through the cooperative setting of the first guide groove 263 and the first connecting member 264, it is convenient to adjust the distance between the first adjustment member 261 and the second adjustment member 262 to adapt to batteries of different widths. At the same time, the setting of multiple first guide grooves 263 can also stabilize the connection between the first adjustment member 261 and the second adjustment member 262 and the lifting support member 251. Specifically, the first connecting member 264 is a bolt. Preferably, the support adjustment assembly 26 further includes a third adjustment member 265. The third adjustment member 265 is arranged on the lifting support member 251. The third adjustment member 265 is located at the extension of the interval between the first adjustment member 261 and the second adjustment member 262. An accommodation position 266 is formed through the cooperation of the first adjustment member 261, the second adjustment member 262, and the third adjustment member 265, and the battery is placed in the accommodation position 266. Further preferably, the third adjustment member 265 is provided with a second guide groove 267 and a second connecting member 268. The second guide groove 267 is opened along the length direction, and one end of the second connecting member 268 penetrates through the second guide groove 267 and is connected to the lifting support member 251. Specifically, the number of the second guide grooves 267 can be multiple, and the number of the second connecting members 268 corresponds to it. Through the cooperative setting of the second guide groove 267 and the second connecting member 268, it is convenient to adjust the length of the accommodation position 266 to adapt to batteries of different lengths. At the same time, the setting of multiple second guide grooves 267 can also stabilize the connection between the third adjustment member 265 and the lifting support member 251. In this embodiment, the second connecting member 268 is a bolt.

[0083] In another embodiment, the number of the support adjustment assemblies 26 is multiple, and the multiple support adjustment assemblies 26 are spaced apart and distributed on the lifting support member 251, facilitating the simultaneous injection of liquid into multiple batteries.

[0084] During use, rotate the handwheel of the lifting drive member 241. The two lifting transmission blocks 2421 move towards each other, and at the same time drive the movement of the plate body 24221. The plate body 24221 drives the lifting support member 251 to rise. At this time, a battery with a lower height can be placed. In addition, the first connecting member 264 and / or the second connecting member 268 can be loosened synchronously. At this time, the first adjusting member 261 can move along the first guide groove 263 and relative to the first connecting member 264, and the second adjusting member 262 can move along the second guide groove 267 and relative to the second connecting member 268, so as to adjust the size of the accommodation position 266 to adapt to batteries of different widths and lengths. On the contrary, rotate the handwheel of the lifting drive member 241 in the reverse direction. The two lifting transmission blocks 2421 move away from each other, and the lifting support member 251 moves downward to adapt to a higher battery.

[0085] The lifting assembly 24 drives the lifting support member 251 to move up and down in the height direction. The first adjusting member 261 and the second adjusting member 262 located on the lifting support member 251 also move up and down accordingly. In addition, the first adjusting member 261 and / or the second adjusting member 262 can slide in the width direction. The battery is placed at the position of the distance between the first adjusting member 261 and the second adjusting member 262. In this way, through the adjustment in two dimensions of height and width, batteries of different sizes can be compatible, which is not only beneficial to reducing costs, but also can improve production efficiency.

[0086] The above is only the embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. A liquid injection device, characterized in that, Comprising: A bearing mechanism (1); A support mechanism (2) having at least one accommodation position (21) in which a battery can be placed; A flipping mechanism (3) comprising a flipping assembly (31) and a flipping carrier (32). The flipping assembly (31) includes a flipping member (3111), a limiting member (3112), and a first flipping support member (312). The first flipping support member (312) is disposed on the bearing mechanism (1), the limiting member (3112) is disposed on the first flipping support member (312), the flipping member (3111) includes a flipping plate (31111) and a limiting plate (31112), the flipping carrier (32) is connected to the flipping plate (31111), the flipping plate (31111) is rotatably connected to the first flipping support member (312), the limiting plate (31112) extends towards the outside of the flipping plate (31111), the limiting plate (31112) has a first inclined surface (311123), the limiting member (3112) has a first avoidance area (31121), and the first inclined surface (311123) is located within the first avoidance area (31121); and A liquid injection mechanism (4) disposed on the flipping carrier (32); Wherein, the flipping assembly (31) can drive the flipping carrier (32) to flip relative to the bearing mechanism (1) so that the liquid injection mechanism (4) can inject liquid into the battery in the accommodation position (21); When in the flipped-up state, the first inclined surface (311123) abuts against the side wall of the first avoidance area (31121) to make the flipping member (3111) stay in the flipped-up position.

2. The liquid injection device according to claim 1, characterized in that, The flipping assembly (31) further includes a flipping fixing member (313) rotatably disposed on one side of the flipping plate (31111); the flipping fixing member (313) and the first flipping support member (312) are in the same plane, and one end of the flipping fixing member (313) can rotate to be clamped with the first flipping support member (312).

3. The liquid injection device according to claim 2, wherein The flipping assembly (31) further includes a flipping elastic member (314). One end of the flipping elastic member (314) is fixed to the flipping carrier (32), and the other end of the flipping elastic member (314) is connected to the flipping fixing member (313). The flipping elastic member (314) can push the flipping fixing member (313) to be clamped with the first flipping support member (312).

4. The liquid injection device according to any one of claims 1-3, characterized in that, The support mechanism (2) includes a support member (22) disposed on the bearing mechanism (1), and the support member (22) has at least one of the accommodation positions (21).

5. The liquid injection device according to claim 4, characterized in that, In the height direction, the accommodation position (21) penetrates through the support member (22) or the accommodation position (21) is opened on the upper surface of the support member (22).

6. The liquid injection device according to any one of claims 1-3, characterized in that, The liquid injection mechanism (4) includes a liquid injection tank (41), the liquid injection tank (41) includes a tank body (411) and a liquid guide pipe (412), the tank body (411) is arranged on the flipping and carrying member (32), one end of the liquid guide pipe (412) is connected to the tank body (411), and the other end of the liquid guide pipe (412) penetrates through the flipping and carrying member (32).

7. The liquid injection device according to claim 6, wherein The liquid injection mechanism (4) further includes a liquid injection adjusting member (42) and a liquid injection elastic member (43), the liquid injection adjusting member (42) is arranged at the other end of the liquid guide pipe (412), the liquid injection elastic member (43) is arranged between the liquid guide pipe (412) and the flipping and carrying member (32), one end of the liquid injection elastic member (43) is connected to the flipping and carrying member (32), and the other end of the liquid injection elastic member (43) is connected to the liquid injection adjusting member (42).

8. A liquid injection system, characterized in that, It includes the liquid injection device according to any one of claims 1-7.

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