Battery secondary liquid injection clamp mechanism

Abstract

The utility model relates to the field of battery production and processing, and discloses a battery secondary liquid injection clamp mechanism which comprises an upper retainer cup plate and a lower clamp plate, an upper retainer cup assembly is arranged on the surface of the upper retainer cup plate and comprises a linear bearing, four groups of holding blocks are fixedly connected to the surface of the top end of the upper retainer cup plate, and the lower clamp plate is fixedly connected with the lower clamp plate. The surface of the top end of the upper retainer cup plate is fixedly connected with multiple sets of retainer cups, the top ends of the outer walls of the retainer cups penetrate through and are fixedly connected with retainer cup covers, the bottom end of the outer wall of the upper retainer cup plate is fixedly connected with multiple sets of sealing bases, the outer wall of the top end of each upper buckle base is elastically connected with an upper buckle through a tension spring, and a lower clamp assembly is arranged on the surface of the lower clamp plate. According to the utility model, the upper buckle, the tension spring and the lower buckle are matched, so that the upper retainer cup assembly and the lower clamp assembly can be quickly spliced and fixed, and the upper buckle and the lower buckle are quickly clamped, thereby being suitable for automatic production.

Description

Technical Field

[0001] The utility model relates to the field of battery production and processing, in particular to a battery secondary injection fixture mechanism. Background Art

[0002] A battery is a device that can convert other forms of energy such as chemical energy, light energy, and heat energy into electrical energy and store it for use. There are many types of batteries. With the continuous development of technology, battery technology is also constantly advancing. For example, new types of solid-state batteries have higher safety and energy density.

[0003] Secondary injection refers to the process of injecting electrolyte into the battery again after the first injection of the lithium battery. During the manufacturing process of the lithium battery, through secondary injection, the distribution of the electrolyte inside the battery can be further optimized, the wetting degree of the electrode plate and the separator can be improved, and the problem of local concentration reduction caused by the absorption of the electrolyte by the electrode plate and the separator can be supplemented, so that the battery performance can be significantly improved, and the internal environment of the battery can be further stabilized. During the process of secondary injection of the battery, a fixture is needed to fix the battery.

[0004] The existing fixture mechanism has some deficiencies: on the one hand, there are obvious defects in the splicing and fixing of the existing battery secondary injection fixtures. Most fixtures adopt complex fastening methods, which are not only time-consuming and laborious to operate, but also difficult to match the rhythm of the automated production line, restricting the improvement of production efficiency. On the other hand, for the protection structure of the battery, common fixtures are mostly simple support or fixing methods, and an effective enclosed protection cannot be formed. During injection, the pressure change inside the battery is likely to cause the battery to bulge, and long-term accumulation will damage the service life and performance of the battery. Therefore, a battery secondary injection fixture mechanism is proposed to solve the above problems. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a battery secondary injection fixture mechanism, aiming to improve the problem that most fixtures in the prior art adopt complex fastening methods, which are not only time-consuming and laborious to operate, but also difficult to match the rhythm of the automated production line.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a battery secondary injection fixture mechanism, including an upper sleeve cup plate and a lower fixture plate. An upper sleeve cup assembly is arranged on the surface of the upper sleeve cup plate, and the upper sleeve cup assembly includes a linear bearing.

[0007] Four groups of clamping blocks are fixedly connected to the surface of the top end of the upper cup plate. Multiple cup sleeves are fixedly connected to the surface of the top end of the upper cup plate. The top end of the outer wall of the cup sleeve penetrates and is fixedly connected with a cup sleeve cover. Multiple sealing seats are fixedly connected to the bottom end of the outer wall of the upper cup plate. Rubber sealing nozzles are fixedly connected to the surfaces of the multiple sealing seats. Upper handles are fixedly connected to both sides of the top end of the upper cup plate. Upper buckle seats are fixedly connected to both sides of the bottom end of the outer wall of the upper cup plate. A rotating pin is rotatably connected to the inner wall of the upper buckle seat. An upper buckle is elastically connected to the outer wall of the top end of the upper buckle seat through a tension spring. A lower fixture assembly is arranged on the surface of the lower fixture plate.

[0008] As a further description of the above technical solution:

[0009] The lower fixture assembly includes a handle B. Four groups of lower buckle seats are fixedly connected to the surface of the lower fixture plate. Two groups of long enclosing plates are fixedly connected to the surface of the lower fixture plate in the front and back directions. Two groups of wide enclosing plates are fixedly connected to the surface of the lower fixture plate on the left and right sides. A clamping plate is inserted into the inner wall of the long enclosing plate. A backing plate is fixedly connected to the outer wall of the clamping plate. Multiple partition blocks are fixedly connected to the inner side wall of the long enclosing plate. The outer walls of the multiple partition blocks are in contact with a square aluminum shell battery. A positioning pin is fixedly connected to the top end of the outer wall of the lower fixture plate. A limiting block is elastically connected to the surface of the positioning pin through a spring.

[0010] As a further description of the above technical solution:

[0011] Four groups of linear bearings are provided. The four groups of linear bearings are fixedly connected to the four corners of the upper cup plate. The bottom end of the outer wall of the cup sleeve cover is fixedly connected to the sealing seat.

[0012] As a further description of the above technical solution:

[0013] One end of the tension spring is fixedly connected to the outer walls on both sides of the upper buckle seat. The other end of the tension spring is fixedly connected to the outer wall of the upper buckle. The upper buckle is fixedly connected to the surface of the rotating pin.

[0014] As a further description of the above technical solution:

[0015] The handle B is fixedly connected to the surfaces on both sides of the top end of the lower fixture plate. The top end of the outer wall of the positioning pin is inserted into the bottom end of the linear bearing.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the top end of the lower buckle seat is clamped with the inner side wall of the upper buckle.

[0018] As a further description of the above technical solution:

[0019] One end of the spring is fixedly connected to the surface of the positioning pin, and the other end of the spring is fixedly connected to the bottom end of the outer wall of the limit block.

[0020] As a further description of the above technical solution:

[0021] The limit block is slidably connected to the outer wall of the top end of the positioning pin, and the bottom end of the outer wall of the linear bearing is in contact with the surface of the limit block.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, through the cooperation of the upper buckle, the tension spring and the lower buckle, the upper sleeve cup assembly can be quickly spliced and fixed with the lower fixture assembly, and the upper buckle and the lower buckle are quickly clamped, so as to adapt to automated production.

[0024] 2. In the utility model, by arranging the long enclosing plate and the short enclosing plate, through the enclosed protection structure formed by the two, the bulge inside the battery caused by the change of the battery can be avoided, and the service life of the battery can be effectively protected. Description of the Drawings

[0025] Figure 1 It is an overall three-dimensional structure schematic diagram of a battery secondary filling fixture mechanism proposed by the utility model;

[0026] Figure 2 It is a three-dimensional structure schematic diagram of the upper sleeve cup assembly and the upper sleeve cup plate of a battery secondary filling fixture mechanism proposed by the utility model;

[0027] Figure 3 It is a schematic diagram of the bottom view structure of the upper sleeve cup assembly of a battery secondary filling fixture mechanism proposed by the utility model;

[0028] Figure 4 It is a three-dimensional structure schematic diagram of the upper buckle seat of a battery secondary filling fixture mechanism proposed by the utility model;

[0029] Figure 5 It is a three-dimensional structure schematic diagram of the lower fixture assembly of a battery secondary filling fixture mechanism proposed by the utility model;

[0030] Figure 6 It is a schematic diagram of the separated state structure of the spring and the positioning pin of a battery secondary filling fixture mechanism proposed by the utility model.

[0031] Legend Explanation:

[0032] 1. Upper sleeve cup plate; 2. Lower fixture plate; 3. Upper sleeve cup assembly; 31. Linear bearing; 32. Holding block; 33. Upper buckle seat; 34. Upper pull handle; 35. Sleeve cup; 36. Sleeve cup cover; 37. Sealing seat; 38. Rubber sealing nozzle; 39. Upper buckle; 310. Rotating pin; 311. Tension spring; 4. Lower fixture assembly; 41. Pull handle B; 42. Lower buckle seat; 43. Positioning pin; 44. Long surrounding plate; 45. Wide surrounding plate; 46. Clamping plate; 47. Base plate; 48. Spacer block; 49. Square aluminum shell battery; 410. Spring; 411. Limit block. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Refer to Figures 1-3 , an embodiment provided by the present invention: A battery secondary filling fixture mechanism includes an upper sleeve cup plate 1 and a lower fixture plate 2. The surface of the upper sleeve cup plate 1 is provided with an upper sleeve cup assembly 3. The upper sleeve cup assembly 3 includes linear bearings 31. There are four groups of linear bearings 31, and the four groups of linear bearings 31 are fixedly connected to the four corners of the upper sleeve cup plate 1. The positions of the four groups of linear bearings 31 correspond to the positions of the positioning pins 43, and an empty groove corresponding to the top end of the positioning pin 43 is provided at the bottom end of the linear bearing 31. The bottom end of the outer wall of the sleeve cup cover 36 is fixedly connected to the sealing seat 37. Four groups of holding blocks 32 are fixedly connected to the surface of the top end of the upper sleeve cup plate 1. Multiple groups of sleeve cups 35 are fixedly connected to the surface of the top end of the upper sleeve cup plate 1. The top end of the outer wall of the sleeve cup 35 penetrates and is fixedly connected to the sleeve cup cover 36. By providing a sleeve cup cover 36 with a filling port on its surface, electrolyte can be injected into the interior of the sleeve cup 35, so as to supplement the interior of the square aluminum shell battery 49. Multiple groups of sealing seats 37 are fixedly connected to the bottom end of the outer wall of the upper sleeve cup plate 1. Multiple through holes are provided on the surface of the upper sleeve cup plate 1 and correspond to the positions of the sleeve cups 35, and the sleeve cups 35 are connected to the sealing seats 37 through the through holes.

[0035] Refer to Figures 2-4, rubber sealing nozzles 38 are fixedly connected to the surfaces of multiple groups of sealing seats 37. The rubber sealing nozzles 38 are prior art. By providing them, the electrolyte in the sealing seats 37 and the cup 35 connected to the top can be sealed to prevent leakage. On both sides of the top of the upper cup plate 1, upper pull handles 34 are fixedly connected. On both sides of the bottom end of the outer wall of the upper cup plate 1, upper buckle seats 33 are fixedly connected. The number of the upper buckle seats 33 is set to two groups, and both groups are respectively fixed on both sides of the top of the upper cup plate 1, and the number of both groups is two, corresponding to the positions of the lower buckle seats 42. A rotating pin 310 is rotatably connected to the inner wall of the upper buckle seat 33. An upper buckle 39 is elastically connected to the outer wall of the top of the upper buckle seat 33 through a tension spring 311. One end of the tension spring 311 is fixedly connected to the outer walls on both sides of the upper buckle seat 33, and the other end of the tension spring 311 is fixedly connected to the outer wall of the upper buckle 39. The function of the tension spring 311 is to automatically reset the position of the upper buckle 39 after the inclined surface is squeezed and moved. The upper buckle 39 is fixedly connected to the surface of the rotating pin 310. The upper buckle 39 is pulled inward by the tension spring 311 to maintain a tight state. When the upper buckle 39 is subjected to an external force to overcome the tension of the tension spring 311, it rotates outward to release the fastening of the lower buckle seat 42. A lower fixture assembly 4 is arranged on the surface of the lower fixture plate 2.

[0036] Refer to Figures 5-6 , the lower fixture assembly 4 includes a handle B41. Four groups of lower buckle seats 42 are fixedly connected to the surface of the lower fixture plate 2. The outer wall of the top of the lower buckle seat 42 is clamped with the inner side wall of the upper buckle 39. By clamping the upper buckle 39 and the lower buckle seat 42, the upper cup plate 1 and the lower fixture plate 2 can be quickly spliced and fixed, so as to facilitate the injection of electrolyte into the square aluminum shell battery 49. Two groups of long enclosing plates 44 are fixedly connected to the surface of the lower fixture plate 2, and two groups of wide enclosing plates 45 are fixedly connected to the surface of the lower fixture plate 2. By cooperating the two groups of long enclosing plates 44 and the wide enclosing plates 45, a surrounding frame is formed on the surface of the lower fixture plate 2. A clamping plate 46 is inserted into the inner wall of the long enclosing plate 44. A backing plate 47 is fixedly connected to the outer wall of the clamping plate 46. Multiple groups of partition blocks 48 are fixedly connected to the inner side wall of the long enclosing plate 44. By arranging multiple groups of partition blocks 48 on the surface of the long enclosing plate 44, battery placement pits are formed in the formed pits to place the square aluminum shell battery 49. The outer walls of multiple groups of partition blocks 48 are in contact with the square aluminum shell battery 49.

[0037] Refer to Figures 5-6The top of the outer wall of the lower clamp plate 2 is fixedly connected with a positioning pin 43, and the handle B41 is fixedly connected to the surfaces on both sides of the top of the lower clamp plate 2. The top of the outer wall of the positioning pin 43 is plugged into the bottom end of the linear bearing 31, and the plugging between the two can position and install the upper cup plate 1 and the lower clamp plate 2 to prevent deviation. The surface of the positioning pin 43 is elastically connected to the limiting block 411 through a spring 410, and the limiting block 411 is slidably connected to the outer wall of the top of the positioning pin 43. The bottom end of the outer wall of the linear bearing 31 contacts the surface of the limiting block 411, one end of the spring 410 is fixedly connected to the surface of the positioning pin 43, and the other end of the spring 410 is fixedly connected to the bottom end of the outer wall of the limiting block 411. The function of the spring 410 is to apply an elastic support to the limiting block 411 when the pressure drops.

[0038] Working principle: When performing the secondary battery filling operation, first place the square aluminum shell battery 49 in the battery placement pit of the lower fixture plate 2. The two groups of long panels 44 and the two groups of wide panels 45 on the lower fixture plate 2 form an enclosing frame, and the spacer 48 ensures that the battery position is stable.

[0039] Next, the upper cup plate 1 is docked with the lower fixture plate 2, and the positioning pin 43 is inserted into the linear bearing 31 to achieve positioning to prevent the two from offsetting. When the upper cup plate 1 moves downward, the upper buckle 39 at its bottom is squeezed by the outer wall of the top end of the lower buckle seat 42, and overcomes the tension of the tension spring 311 to rotate outward. When the upper cup plate 1 continues to move downward, so that the position of the upper buckle 39 corresponds to the position of the lower buckle seat 42, the upper buckle 39 is reset and clamped on the outer wall of the top end of the lower buckle seat 42 under the action of the tension spring 311, thereby quickly splicing and fixing the upper cup plate 1 and the lower fixture plate 2. At this time, the electrolyte is injected into the cup 35 through the filling port on the surface of the cup cover 36, and the electrolyte passes through the through hole on the surface of the upper cup plate 1, the sealing seat 37 and the rubber sealing nozzle 38, and is finally injected into the square aluminum shell battery 49 for replenishment.

[0040] When disassembly is required, external force acts on the upper buckle 39 to make it rotate outward to overcome the tension of the tension spring 311, thereby releasing the clamping connection with the lower buckle seat 42, and the upper cup plate 1 and the lower fixture plate 2 can be separated.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery secondary liquid injection fixture mechanism, comprising an upper cup plate (1) and a lower fixture plate (2), characterized in that: An upper cup assembly (3) is provided on the surface of the upper cup plate (1), and the upper cup assembly (3) comprises a linear bearing (31); Four groups of holding blocks (32) are fixedly connected to the surface of the top end of the upper cup plate (1), multiple groups of cups (35) are fixedly connected to the surface of the top end of the upper cup plate (1), a cup cover (36) is passed through and fixedly connected to the top end of the outer wall of the cup (35), multiple groups of sealing seats (37) are fixedly connected to the bottom end of the outer wall of the upper cup plate (1), and rubber sealing nozzles (38) are fixedly connected to the surfaces of the multiple groups of sealing seats (37), upper handles (34) are fixedly connected to both sides of the top end of the upper cup plate (1), upper buckle seats (33) are fixedly connected to both sides of the bottom end of the outer wall of the upper cup plate (1), the inner wall of the upper buckle seat (33) is rotatably connected to a rotating pin (310), and the outer wall of the top end of the upper buckle seat (33) is elastically connected to an upper buckle (39) through a tension spring (311), and a lower clamp assembly (4) is provided on the surface of the lower clamp plate (2).

2. A battery secondary liquid injection fixture mechanism according to claim 1, characterized in that: The lower clamp assembly (4) includes a handle B (41), four groups of lower buckle seats (42) are fixedly connected to the surface of the lower clamp plate (2), two groups of front and rear long panels (44) are fixedly connected to the surface of the lower clamp plate (2), two groups of left and right wide panels (45) are fixedly connected to the surface of the lower clamp plate (2), a clamp (46) is inserted into the inner wall of the long panel (44), a pad (47) is fixedly connected to the outer wall of the clamp (46), a plurality of groups of spacers (48) are fixedly connected to the inner side wall of the long panel (44), the outer walls of the plurality of groups of spacers (48) are in contact with square aluminum shell batteries (49), and a positioning pin (43) is fixedly connected to the top end of the outer wall of the lower clamp plate (2), and the surface of the positioning pin (43) is elastically connected to the limit block (411) through a spring (410).

3. A battery secondary liquid injection fixture mechanism according to claim 1, characterized in that: Four groups of linear bearings (31) are provided, and the four groups of linear bearings (31) are fixedly connected to the four corners of the upper sleeve cup plate (1), and the bottom end of the outer wall of the sleeve cup cover (36) is fixedly connected to the sealing seat (37).

4. A battery secondary liquid injection fixture mechanism according to claim 1, characterized in that: One end of the tension spring (311) is fixedly connected to the outer walls on both sides of the upper buckle seat (33), and the other end of the tension spring (311) is fixedly connected to the outer wall of the upper buckle (39), and the upper buckle (39) is fixedly connected to the surface of the rotating pin (310).

5. A battery secondary liquid injection fixture mechanism according to claim 2, characterized in that: The handle B (41) is fixedly connected to the surfaces on both sides of the top of the lower fixture plate (2), and the top of the outer wall of the positioning pin (43) is plugged into the bottom end of the linear bearing (31).

6. A battery secondary liquid injection fixture mechanism according to claim 2, characterized in that: The outer wall at the top end of the lower buckle seat (42) is snap-fitted to the inner side wall of the upper buckle (39).

7. A battery secondary liquid injection fixture mechanism according to claim 2, characterized in that: One end of the spring (410) is fixedly connected to the surface of the positioning pin (43), and the other end of the spring (410) is fixedly connected to the bottom end of the outer wall of the limiting block (411).

8. A battery secondary liquid injection fixture mechanism according to claim 2, characterized in that: The limit block (411) is slidably connected to the outer wall at the top end of the positioning pin (43), and the bottom end of the outer wall of the linear bearing (31) is in contact with the surface of the limit block (411).

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