CN219163459U - Sealing device for lithium battery production - Google Patents

Abstract

The utility model relates to the technical field of lithium battery production and discloses a sealing device for lithium battery production, which comprises a battery shell, a battery cover and a base, wherein clamping plates are arranged on the left side and the right side of the battery shell, gaskets are fixedly arranged on the inner sides of the clamping plates, a cross rod is fixedly connected to the outer sides of the clamping plates, a vertical rod is arranged at one end, far away from the clamping plates, of the cross rod, a movable mechanism is fixedly connected to the rear end of the vertical rod, a lifting table is arranged below the battery shell, and an extension rod is fixedly connected to the lower end of the lifting table. According to the utility model, through the cooperation among the battery shell, the clamping plate, the movable mechanism and the gasket, the clamping effect of the battery shell is realized by the arrangement of the clamping plate, the centering correction effect of the battery shell is achieved, the problem of dislocation of the sealing part of the lithium battery is effectively solved, and the battery shell is always positioned under the battery cover by adopting the limiting mode of the clamping plate on the battery shell, so that the quality of the sealed lithium battery is improved.

Description

Sealing device for lithium battery production

Technical Field

The utility model relates to the technical field of lithium battery production, in particular to a sealing device for lithium battery production.

Background

The sealing process of lithium battery production can be realized by pressing the battery cover at the upper end of the battery shell after the liquid injection process in a pressing mode.

In order to solve the problem that the gas in the lithium battery occupies the space of the anode and the cathode, which causes the shortage of electrolyte and seriously affects the performance of the battery, a related structure proposed by the prior art copies the sealing device to seal the lithium battery, for example, an utility model patent with publication number of CN201922441985.2 provides a cylindrical lithium battery vacuum sealing device which comprises a base, a battery shell, a placing rack and a clamping groove, wherein the bottom end of the front side of the base is provided with the placing rack, the top end of the placing rack is inserted with a matched battery shell, the bottom end of the battery shell extends to the inner side of the placing rack, the top end of the placing rack is provided with the clamping groove, and the sealing device further comprises a moving mechanism which is arranged in the inner cavity of the base; the vacuum sealing mechanism is arranged on the front side of the base.

In theory, the implementation of the related technical structure is favorable for sealing the lithium battery production, however, in the above-mentioned content, the battery shell is placed in the rack, a round hole matched with the battery shell is necessarily formed at the top end for placing the prosthesis, but the diameter value of the inner diameter of the round hole is necessarily larger than the outer diameter value of the battery shell, the battery shell can be placed in the rack from the inside of the round hole, at this time, a gap is necessarily formed between the battery shell and the round hole, and when the battery shell is not placed in the inside of the round hole in a centering manner, the joint of the battery cover and the battery shell is misplaced, so that the quality of the lithium battery sealing is reduced; and, the battery case is located the inside of rack, and the staff need stretch into the inside of rack with the hand to hold the battery case and push up, the lithium cell that the rack will be released to the reuse other hand just can realize its ejection of compact, and this process of getting material not only can increase staff's work load, has still reduced the ejection of compact efficiency of sealing back lithium cell.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a sealing device for lithium battery production, which has the advantages of facilitating the taking out of a sealed lithium battery, reinforcing the stability of the lithium battery during sealing and improving the quality of the sealing of the lithium battery, and solves the problems in the prior art.

The utility model provides the following technical scheme: the utility model provides a closing device is used in lithium cell production, includes battery case, battery cover, base, the left and right sides of battery case is provided with the splint, the inboard fixed mounting of splint has the gasket, the outside fixedly connected with horizontal pole of splint, the montant is installed to the one end that the splint was kept away from to the horizontal pole, the rear end fixedly connected with movable mechanism of montant, the below of battery case is provided with the elevating platform, the lower extreme fixedly connected with extension rod of elevating platform, the inside of extension rod is provided with ejection mechanism, the dead lever has been cup jointed in the outer wall activity of extension rod, the spout has been seted up to the inner wall activity of dead lever, the slider has been cup jointed in the inner wall activity of spout, and the one end and the outer wall fixed connection of extension rod that the spout was kept away from to the slider.

Preferably, the outer wall of the battery cover is movably sleeved with a vacuum sealing mechanism, and the back surface of the vacuum sealing mechanism is provided with a moving mechanism positioned in the base.

Preferably, the right side fixedly connected with rectangular plate of base, the up end fixed mounting of rectangular plate has electronic air pump, electronic air pump passes through the connecting pipe and is connected with vacuum sealing mechanism, the front fixed mounting of base has the rack that is located the dead lever outer wall, the equal fixedly connected with mounting panel in the left and right sides of base.

Preferably, the movable mechanism comprises a first ball nut fixedly connected with the rear end of the vertical rod, the inner wall of the first ball nut is in threaded sleeve connection with a first ball screw, and the outer walls of the first ball screws on the left side and the right side are provided with threads in opposite directions.

Preferably, the inner wall of the first ball screw is fixedly sleeved with a rotating shaft, the left end of the rotating shaft is fixedly connected with a first servo motor, a first speed reducer is arranged on an output shaft of the first servo motor, a protective box positioned outside the movable mechanism is arranged on the outer part of the first servo motor, and the outer wall of the protective box is fixedly connected with the inner wall of the base.

Preferably, the ejection mechanism comprises a second ball nut fixedly connected with the inner wall of the extension rod, and a second ball screw is sleeved on the outer wall of the second ball nut in a threaded manner.

Preferably, the upper end fixedly connected with limiting plate of No. two ball screw, no. two ball screw's lower extreme fixedly connected with is located No. two servo motor of dead lever below, and is provided with No. two reducers on No. two servo motor's the output shaft, no. two servo motor's lower extreme and the inner wall fixed connection of rack.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, through the cooperation among the battery shell, the ejection mechanism, the rotating shaft and the placement frame, the ejection effect of the battery shell from the interior of the placement frame is realized by the arrangement of the ejection mechanism, the discharging effect of the sealed lithium battery is achieved, the problem of inconvenient discharging of the lithium battery is effectively solved, the ejection mechanism is adopted to drive the movement mode of the sealed lithium battery, the material taking step of the lithium battery is simplified, the workload of staff is lightened, and the discharging efficiency of the lithium battery is also improved.

2. According to the utility model, through the cooperation among the battery shell, the clamping plate, the movable mechanism and the gasket, the clamping effect of the battery shell is realized by the arrangement of the clamping plate, the centering correction effect of the battery shell is achieved, the problem of dislocation of the sealing part of the lithium battery is effectively solved, and the battery shell is always positioned under the battery cover by adopting the limiting mode of the clamping plate on the battery shell, so that the quality of the sealed lithium battery is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a side view of the battery case of the present utility model;

FIG. 3 is a front cross-sectional view of the ejection mechanism of the present utility model;

FIG. 4 is a top view of the splint of the present utility model;

fig. 5 is a top view of the movable mechanism of the present utility model.

In the figure: 1. a battery case; 2. a battery cover; 3. a base; 4. a clamping plate; 5. a gasket; 6. a cross bar; 7. a vertical rod; 8. a movable mechanism; 81. a first ball nut; 82. a first ball screw; 9. a lifting table; 10. an extension rod; 11. an ejection mechanism; 111. a second ball nut; 112. a second ball screw; 12. a fixed rod; 13. a vacuum sealing mechanism; 14. a moving mechanism; 15. an electric air pump; 16. a rectangular plate; 17. a placing rack; 18. a mounting plate; 19. a rotating shaft; 20. a first servo motor; 21. a protective box; 22. a second servo motor; 23. a limiting plate; 24. a chute; 25. a slide block; 26. and (5) connecting pipes.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 and 4, a sealing device for lithium battery production comprises a battery case 1, a battery cover 2 and a base 3, wherein clamping plates 4 are arranged at the left side and the right side of the battery case 1, the clamping plates 4 are used for strengthening the battery case 1 during packaging, dislocation of the battery cover 2 and the battery case 1 during connection is prevented, so that the packaging quality of a lithium battery is improved, a gasket 5 is fixedly arranged at the inner side of the clamping plates 4, deformation of the battery case 1 caused by overlarge strength of the clamping plates 4 is avoided due to the arrangement of the gasket 5, a cross rod 6 is fixedly connected at the outer side of the clamping plates 4, the cross rod 6 and a vertical rod 7 are arranged at one end, far away from the clamping plates 4, of the cross rod 6, the vertical rod 7 is fixedly connected with a movable mechanism 8, the movable mechanism 8 is arranged at the rear end of the vertical rod 7 and provides power for movement of the clamping plates 4, thereby being convenient for placing and taking out the battery shell 1, the lifting table 9 is arranged below the battery shell 1, the lifting table 9 is arranged, the battery shell 1 can be ejected out of the inside of the placement frame 17 after being sealed, thereby being convenient for a worker to take out the sealed battery shell 1, the lower end of the lifting table 9 is fixedly connected with the extension rod 10, the arrangement of the extension rod 10 plays a role in connecting the lifting table 9 with the ejection mechanism 11, the ejection mechanism 11 is arranged in the extension rod 10, the movement of the ejection mechanism 11 provides power for the movement of the lifting table 9, the outer wall of the extension rod 10 is movably sleeved with the fixed rod 12, the inner wall of the fixed rod 12 is provided with the sliding groove 24, the inner wall of the sliding groove 24 is movably sleeved with the sliding block 25, one end of the sliding block 25 away from the sliding groove 24 is fixedly connected with the outer wall of the extension rod 10, the sliding block 25 moves in the sliding groove 24, the stability of the extension pole 10 during movement within the fixed pole 12 is enhanced.

The outer wall of the battery cover 2 is movably sleeved with a vacuum sealing mechanism 13, the back of the vacuum sealing mechanism 13 is provided with a moving mechanism 14 positioned in the base 3, and the moving mechanism 14 is arranged to provide power for lifting and lowering the battery cover 2.

Referring to fig. 2 and 5, a rectangular plate 16 is fixedly connected to the right side of the base 3, an electric air pump 15 is provided for supporting and supporting the installation of the rectangular plate 16, an electric air pump 15 is fixedly installed on the upper end surface of the rectangular plate 16, the electric air pump 15 is arranged to vacuumize the battery case 1 and the battery cover 2, the electric air pump 15 is connected with the vacuum sealing mechanism 13 through a connecting pipe 26, the connecting pipe 26 is arranged to connect the electric air pump 15 and the vacuum sealing mechanism 13, a channel is provided for the flow of gas, a placing rack 17 located on the outer wall of the fixing rod 12 is fixedly installed on the front surface of the base 3, a space is provided for placing the battery case 1 by the installation of the placing rack 17, and mounting plates 18 are fixedly connected to the left side and the right side of the base 3.

The movable mechanism 8 comprises a first ball nut 81 fixedly connected with the rear end of the vertical rod 7, the movement of the first ball nut 81 provides power for the movement of the vertical rod 7, a first ball screw 82 is sleeved on the inner wall threads of the first ball nut 81, the circumferential rotation of the first ball screw 82 provides power for the movement of the first ball nut 81 in the horizontal direction, the outer walls of the first ball screws 82 on the left side and the right side are provided with threads in opposite directions, and the threads in opposite directions are arranged, so that the first ball screw 82 drives the first ball nuts 81 on the left side and the right side to move towards the battery case 1 simultaneously after rotating.

The inner wall of the first ball screw 82 is fixedly sleeved with a rotating shaft 19, the rotation of the rotating shaft 19 provides power for the rotation of the first ball screw 82, the left end of the rotating shaft 19 is fixedly connected with a first servo motor 20, a first speed reducer is arranged on an output shaft of the first servo motor 20, the first speed reducer is set to be an adjusting function of the rotating speed of the output shaft of the first servo motor 20, a protective box 21 positioned outside the movable mechanism 8 is arranged on the outer side of the first servo motor 20, the outer wall of the protective box 21 is fixedly connected with the inner wall of the base 3, and the protective box 21 plays a role in protecting the first servo motor 20 and the movable mechanism 8 and simultaneously provides a support and a platform for the installation of the first servo motor 20 and the movable mechanism 8.

Referring to fig. 3, the ejection mechanism 11 includes a No. two ball nut 111 fixedly connected to an inner wall of the extension rod 10, wherein movement of the No. two ball nut 111 provides power for lifting movement of the extension rod 10 in a vertical direction, a No. two ball screw 112 is screwed on an outer wall of the No. two ball nut 111, and circumferential rotation of the No. two ball screw 112 provides power for movement of the No. two ball nut 111 in the vertical direction.

The upper end fixedly connected with limiting plate 23 of No. two ball screw 112, limiting plate 23's installation plays the restriction effect to No. two ball nut 111 motion trails, no. two servo motor 22 of No. two ball screw 112's lower extreme fixedly connected with is located the dead lever 12 below, and be provided with No. two reducers on No. two servo motor 22's the output shaft, no. two decelerator's setting plays the regulation effect to No. two servo motor 22 output shaft rotational speeds, no. two servo motor 22's lower extreme and rack 17's inner wall fixed connection, rack 17's installation provides support and platform for No. two servo motor 22's installation.

Working principle: when in use, firstly, the battery shell 1 is placed in the rack 17, the first servo motor 20 is started and then drives the rotation of the rotating shaft 19, the rotation of the rotating shaft 19 drives the rotation of the first ball screw 82, the circumferential rotation of the first ball screw 82 on the left side and the right side respectively drives the first ball nuts 81 on the left side and the right side to move towards the battery shell 1, the first ball nuts 81 move and drive the connection between the cross rod 6 and the vertical rod 7 to approach towards the battery shell 1 until the gasket 5 is tightly attached to the outer wall of the battery shell 1, the power supply of the first servo motor 20 can be closed, at this time, the battery shell 1 is positioned in the middle position, the misplacement of the battery shell 1 and the battery shell 2 when the battery shell 1 is sealed is prevented, then, the battery shell 2 is covered at the upper end of the battery shell 1 through the operation of the moving mechanism 14, the electric air pump 15 is started, the principle of internal and external air pressure difference is utilized, the battery cover 2 is pressed downwards by hands, so that the battery cover 2 and the battery shell 1 are attached and installed in the same installation mode as the installation mode in the prior art, after the installation is finished, the electric air pump 15 is closed, then, after the end of the sealing of the battery shell 1, the moving mechanism 14 drives the vacuum sealing mechanism 13 to be separated from the battery shell 1, the second servo motor 22 is started to drive the second ball screw 112 to rotate, the second ball screw 112 circumferentially rotates and simultaneously drives the second ball nut 111 to vertically move up and down, the second ball nut 111 simultaneously moves in the same direction and drives the extension rod 10 to move in the same direction, at the moment, the sliding block 25 moves in the chute 24, the stability of the lifting of the extension rod 10 in the fixing rod 12 is reinforced, and after the left, the lifting platform 9 is moved by the movement of the extension rod 10, so that the lifting table 9 ejects the battery case 1 from the inside of the placement frame 17, thereby facilitating the removal of the battery case 1 by the worker.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Meanwhile, in the drawings of the present utility model, the filling pattern is only for distinguishing the layers, and is not limited in any way.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a closing device is used in lithium cell production, includes battery case (1), battery cover (2), base (3), its characterized in that: the battery case (1) is provided with splint (4) in the left and right sides, the inboard fixed mounting of splint (4) has gasket (5), the outside fixedly connected with horizontal pole (6) of splint (4), montant (7) are installed to the one end that splint (4) was kept away from to horizontal pole (6), the rear end fixedly connected with movable mechanism (8) of montant (7), the below of battery case (1) is provided with elevating platform (9), the lower extreme fixedly connected with extension pole (10) of elevating platform (9), the inside of extension pole (10) is provided with ejection mechanism (11), dead lever (12) have been cup jointed in the outer wall activity of extension pole (10), spout (24) have been seted up to the inner wall activity of spout (24), and the one end that spout (24) were kept away from to slider (25) and the outer wall fixed connection of extension pole (10).

2. The sealing device for lithium battery production according to claim 1, wherein: the outer wall of the battery cover (2) is movably sleeved with a vacuum sealing mechanism (13), and a moving mechanism (14) positioned in the base (3) is arranged on the back surface of the vacuum sealing mechanism (13).

3. The sealing device for lithium battery production according to claim 1, wherein: the right side fixedly connected with rectangular plate (16) of base (3), the up end fixed mounting of rectangular plate (16) has electronic air pump (15), electronic air pump (15) are connected with vacuum sealing mechanism (13) through connecting pipe (26), the front fixed mounting of base (3) has rack (17) that are located dead lever (12) outer wall, the equal fixedly connected with mounting panel (18) in the left and right sides of base (3).

4. The sealing device for lithium battery production according to claim 1, wherein: the movable mechanism (8) comprises a first ball nut (81) fixedly connected with the rear end of the vertical rod (7), a first ball screw (82) is sleeved on the inner wall threads of the first ball nut (81), and threads in opposite directions are formed on the outer walls of the first ball screws (82) on the left side and the right side.

5. The sealing device for lithium battery production according to claim 4, wherein: the inner wall of the ball screw (82) is fixedly sleeved with a rotating shaft (19), the left end of the rotating shaft (19) is fixedly connected with a first servo motor (20), a first speed reducer is arranged on an output shaft of the first servo motor (20), a protective box (21) positioned outside the movable mechanism (8) is arranged on the outer part of the first servo motor (20), and the outer wall of the protective box (21) is fixedly connected with the inner wall of the base (3).

6. The sealing device for lithium battery production according to claim 1, wherein: the ejection mechanism (11) comprises a second ball nut (111) fixedly connected with the inner wall of the extension rod (10), and a second ball screw (112) is sleeved on the outer wall of the second ball nut (111) in a threaded manner.

7. The sealing device for lithium battery production according to claim 6, wherein: the upper end fixedly connected with limiting plate (23) of No. two ball screw (112), no. two servo motor (22) of No. two ball screw (112) lower extreme fixedly connected with is located dead lever (12) below, and is provided with No. two reducers on the output shaft of No. two servo motor (22), the lower extreme of No. two servo motor (22) and the inner wall fixed connection of rack (17).

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