CN219739035U - Lithium iron manganese phosphate soft package battery formation clamp - Google Patents

Abstract

The utility model relates to the technical field of lithium ion battery manufacturing devices, and provides a lithium iron manganese phosphate soft package battery formation clamp. The lifting mechanism is started to rotate the hand, so that the first screw rod rotates to drive the first belt pulley to rotate, and meanwhile, the belt is driven to drive the second belt pulley to rotate, so that the first screw rod and the second screw rod synchronously rotate to enable the movable block I and the movable block II to drive the upper clamping plate to move downwards to press down the soft-package battery body, the aim of uniform stress of the soft-package battery body is fulfilled, and the problem that uneven stress is easily caused by pressing down the clamping plates by manually rotating different nuts in the prior art is solved; through heating block among the start heating assembly, make the heating block heat the stainless steel contact plate of lower plate surface to play and carry out the purpose of heating and softening to the soft packet of battery body, so that go on of upper plate to soft packet of battery body push down work, effectively improved the efficiency to soft packet of battery body push down.

Description

A kind of lithium iron manganese phosphate soft pack battery formation fixture

Technical field

The utility model relates to the technical field of lithium-ion battery manufacturing devices, and specifically to a lithium iron manganese phosphate soft pack battery forming fixture.

Background technique

Soft-pack lithium batteries are just liquid lithium-ion batteries with a polymer shell. Structurally, it is packaged with aluminum-plastic film. If a safety hazard occurs, the soft-packed battery will only inflate and crack at most. Usually, a hot-pressure formation device is used, but the hot-pressure formation device is mainly suitable for large-scale battery manufacturing enterprises. It has the characteristics of high price, large volume, and large production quantity of a single set of equipment, and is not suitable for laboratory use.

After searching, the utility model patent with the publication number CN 206947453 U discloses a simplified fixture for lithium titanate soft pack batteries. The technical problem it wants to solve is: the formation fixture in the prior art is too complicated, and the lithium battery is not ready for use during formation. The loading and unloading of boards has caused great inconvenience, is time-consuming, labor-intensive, and low-efficiency, creating a bottleneck for the mass production of lithium batteries. This application uses a lithium titanate soft pack battery to be simplified into a fixture, including two stainless steel splints, which are characterized in that: the upper and lower ends of the symmetrical sides of the splints are provided with symmetrical protruding parts, and the protruding parts are There is a circular through hole in the center; both sides of the plywood are coated with insulation layers; the two plywood are placed symmetrically up and down and the battery is clamped in the middle. The circular through holes on the two plywood correspond up and down and are connected by bolts, but they are connected manually The method of rotating multiple nuts to press down the splint to clamp the soft-pack battery cannot ensure the synchronization of the force-bearing rotation of the nuts at each corner, and may easily lead to uneven stress on the soft-pack battery.

Utility model content

The utility model proposes a fixture for lithium iron manganese phosphate soft-pack batteries, which solves the problem in the related technology that the synchronization of the force-bearing rotation of the nuts at each corner cannot be guaranteed, which easily leads to uneven stress on the soft-pack batteries.

The technical solution of the utility model is as follows: a lithium iron manganese phosphate soft pack battery forming fixture, including a base plate, two brackets symmetrically fixed on the top of the base plate, a lower splint fixed on the top of the base plate, and an up and down sliding arrangement between the two brackets. There is an upper plywood between the upper plywood and the soft pack battery body on the top of the lower plywood. A lifting mechanism for driving the upper plywood to move up and down is disposed between the two brackets.

Preferably, the lifting mechanism includes a rotating hand and a belt. The output end of the rotating hand is fixedly connected to a screw rod. The surface of the screw rod is threadedly connected to a movable block. One side of the movable block is connected to the upper splint. One side of the pulley is fixedly connected, the surface of the screw rod is fixedly connected to the pulley one, the surface of the pulley one is connected to the pulley two through the belt transmission, the inner wall of the pulley two is fixedly connected to the screw rod two, the screw rod There is a movable block 2 threaded on the surface of the movable block 2. One side of the movable block 2 is fixedly connected to the side of the upper splint away from the movable block 1. The hand is turned on to make the output end drive the screw rod to rotate. The screw rod rotates to drive the movable block 1. The thread on the surface of screw rod 1 moves downward. At the same time, screw rod 1 rotates to drive pulley 1 to rotate. At the same time, pulley 1 drives pulley 2 to rotate through the belt. The rotation of pulley 2 drives screw rod 2 to rotate, so that movable block 2 is threaded on the surface of screw rod 2. Move downward, and at the same time, the movable block 1 moves downward on the surface thread of the screw rod 1, so that the movable block 1 and the movable block 2 synchronously drive the upper splint to move downward to press down the soft pack battery body.

Preferably, the internal array of the lower clamping plate has several heating components for heating the soft-pack battery body, and the heating components play a role in heating the soft-pack battery body.

Preferably, the heating assembly includes a rectangular trough, a number of heating blocks are fixedly installed inside the rectangular trough through bolt assemblies, a stainless steel contact plate is fixedly connected to the inside of the rectangular trough, and the heating blocks are provided to play a heating role. The stainless steel contact plate is provided to make contact with the soft pack battery body, and the stainless steel contact plate has a certain thermal conductivity effect, allowing the soft pack battery body to heat up quickly.

Preferably, the side of the movable block away from the upper splint is fixedly connected with a slider, the side of the bracket close to the movable block is provided with a slider, the slider is slidingly connected to the slider, and the slider and the slider are The sliding connection serves to limit the position of the movable block one.

Preferably, the lower splint is fixedly installed on the top of the bottom plate through two bolt assemblies, and the two bolt assemblies play a role in fixing the lower splint.

Preferably, one side of the upper plywood is fixedly installed on the side of movable block one away from the slider through bolt assembly three, and the other side of the upper plywood is fixedly installed on one side of movable block two through bolt assembly four. Bolt assembly three and bolt assembly four serve to fix the upper splint between the first and second movable blocks.

Preferably, the top end of the screw rod is rotationally connected to the inner wall of the bracket through a bearing, and the bearing is provided to stabilize the rotation of the screw rod.

Preferably, the side of the bracket close to the lower splint is fixedly installed with a fixing block through welding, and the side of the fixing block away from the bracket is fixedly connected to the side of the lower splint through bolt assemblies 5. The fixing block is provided to connect the lower splint. And the role of stabilizing the rotation of the screw rod.

Preferably, the bottom end of the first screw rod is rotatably connected to the inner wall of the bracket through a second bearing, and the second bearing is provided to make the bottom end of the screw rod one rotate smoothly in the fixed block.

The working principle and beneficial effects of this utility model are:

1. This utility model starts the lifting mechanism to change hands, so that the first screw rod rotates to drive the pulley 1 to rotate, and at the same time, the belt drive drives the pulley 2 to rotate, so that the screw rod 1 and the screw rod 2 rotate synchronously, so that the movable block 1 and the movable block 2 are driven. The upper splint moves downward to press down the soft pack battery body, thereby achieving the purpose of uniform force on the soft pack battery body. Compared with the existing technology, the pressure of the upper splint of the present application when pressing down the soft pack battery body is more uniform. It solves the problem in the prior art that the uneven force is easily caused by manually turning different nuts to press down the splint;

2. In this utility model, by starting the heating block in the heating assembly, the heating block heats the stainless steel contact plate on the surface of the lower plywood, thereby heating and softening the soft-pack battery body, so that the upper plywood can heat the soft-pack battery body. The progress of the pressing down work effectively improves the efficiency of pressing down the soft pack battery body.

Description of the drawings

The utility model will be described in further detail below in conjunction with the accompanying drawings and specific implementation modes.

Figure 1 is a schematic diagram of the three-dimensional structure proposed by the present utility model;

Figure 2 is a schematic side view of the structure proposed by the present utility model;

Figure 3 is a schematic top view of the structure proposed by the present utility model;

Figure 4 is a schematic structural diagram of the heating block proposed by the present utility model.

In the picture: 1 bottom plate; 12 lower splint; 13 upper splint; 14 soft pack battery body; 4 lifting mechanism; 401 changing hands; 402 screw rod one; 403 movable block one; 404 slider; 405 chute; 406 belt; 407 wire Rod two; 5 heating components; 501 rectangular slot; 502 heating block; 503 stainless steel contact plate; 6 fixed block.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

Please refer to Figures 1 to 4. The present utility model provides a technical solution for a lithium iron manganese phosphate soft pack battery formation fixture: a lithium iron manganese phosphate soft pack battery formation fixture, including a bottom plate 1 and two symmetrically fixed on the top of the bottom plate 1 There are two brackets 11, a lower plywood 12 fixed on the top of the base plate 1, and an upper plywood 13 that slides up and down between the two brackets 11. The lower plywood 12 is fixedly installed on the top of the base plate 1 through two bolt assemblies. The lower splint 12 is fixed. One side of the upper splint 13 is fixedly installed on the side of the movable block 403 away from the slider 404 through the bolt assembly 3. The other side of the upper plywood 13 is fixedly installed on the movable block 403 through the bolt assembly 4. On one side of the two, the upper splint 13 is fixedly installed between the movable block 403 and the movable block 2 through the bolt assembly 3 and the bolt assembly 4. The top of the lower splint 12 is provided with a soft pack battery body 14 and two brackets. A lifting mechanism 4 is provided between 11 to drive the upper splint 13 to move up and down;

The lifting mechanism 4 includes a hand 401 and a belt 406. The output end of the hand 401 is fixedly connected to a screw rod 402. The side of the bracket 11 close to the lower splint 12 is fixedly installed with a fixing block 6 through welding. The fixing block 6 is on the side away from the bracket 11. It is fixedly connected to one side of the lower splint 12 through the bolt assembly 5. The fixed block 6 is provided to connect the lower splint 12 and stabilize the rotation of the screw rod 1402. The bottom end of the screw rod 402 rotates with the inner wall of the bracket 11 through the bearing 2. To connect, set the bearing two to make the bottom end of the screw rod 402 rotate smoothly in the fixed block 6. The top of the screw rod 402 is connected to the inner wall of the bracket 11 through bearing 1. Set the bearings together to stabilize the screw rod 402. For rotation, the surface of screw rod 402 is threadedly connected with movable block 403. The side of movable block 403 away from the upper splint 13 is fixedly connected with slide block 404. The side of bracket 11 close to movable block 403 is provided with a chute. 405, the slide block 404 is slidingly connected to the chute 405. The sliding block 404 and the chute 405 are slidingly connected to limit the position of the movable block 403. One side of the movable block 403 is fixedly connected to one side of the upper splint 13. , the surface of screw rod one 402 is fixedly connected with pulley one, the surface of pulley one is connected with pulley two through belt 406, the inner wall of pulley two is fixedly connected with screw rod two 407, the surface of screw rod two 407 is threadedly connected with movable block two , one side of the movable block 2 is fixedly connected to the side of the upper splint 13 away from the movable block 1 403 , the turning hand 401 is started to cause the output end to drive the screw rod 1 402 to rotate, the screw rod 1 402 rotates to drive the movable block 403 on the screw rod 1 402 The surface threads of the screw rod 402 move downward, and at the same time, the screw rod 1 402 rotates to drive the pulley 1 to rotate. At the same time, the pulley 1 drives the pulley 2 to rotate through the belt 406. The rotation of the pulley 2 drives the screw rod 2 407 to rotate, so that the movable block 2 is threaded on the surface of the screw rod 2 407. Move downward, and at the same time, the movable block 1 403 moves downward on the surface thread of the screw rod 1 402, so that the movable block 1 403 and the movable block 2 synchronously drive the upper splint 13 to move downward to press down the soft pack battery body 14.

The internal array of the lower clamping plate 12 has several heating components 5 for heating the soft-pack battery body 14. The heating components 5 play a role in heating the soft-pack battery body 14. The heating components 5 include rectangular slots 501. The rectangular slots A number of heating blocks 502 are fixedly installed inside the rectangular groove 501 through bolt assemblies. A stainless steel contact plate 503 is fixedly connected to the inside of the rectangular groove 501. The heating blocks 502 are provided for heating, and the stainless steel contact plate 503 is provided for connecting with the soft package. The battery body 14 performs a contact function, and the stainless steel contact plate 503 has a certain thermal conductivity effect, so that the soft pack battery body 14 is quickly heated.

The working principle and usage process of the utility model: when in use, first place the soft pack battery body 1 on the top of the stainless steel contact plate 503 of the lower plywood 12, and start the heating block 502 to heat it to a certain temperature to make the soft pack battery body 14 even on the top of the lower plywood 12 After being heated, the hand 401 is restarted to cause the output end to drive the screw rod 1 402 to rotate. The screw rod 402 rotates to drive the pulley 1 to rotate. At the same time, the belt 406 drives the pulley 2 to rotate, causing the screw rod 402 to rotate and drive the movable block 403 on the screw rod 1. The surface thread of 402 moves downward, and at the same time, the movable block 2 moves downward simultaneously with the thread of the surface of screw rod 2 407, thereby driving the upper splint 13 to move downward to press down the soft pack battery body 14, thereby realizing the heating and forming of the soft pack battery body 14. For this purpose, compared with the prior art, the upper clamping plate 13 of the present application presses down the soft pack battery body 14 more evenly, effectively avoiding the problem of uneven force.

The above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the present utility model. Within the scope of new protection.

Claims (9)

1. A lithium iron manganese phosphate soft pack battery formation fixture, including a base plate (1), two brackets (11) symmetrically fixed on the top of the base plate (1), a lower splint (12) fixed on the top of the base plate (1), And an upper splint (13) is slidably arranged between the two brackets (11) up and down. It is characterized in that a soft pack battery body (14) is provided on the top of the lower splint (12), and the two brackets (11) ) is provided with a lifting mechanism (4) that drives the upper splint (13) to move up and down; The lifting mechanism (4) includes a rotating hand (401) and a belt (406). The output end of the rotating hand (401) is fixedly connected to a screw rod (402), and the surface of the screw rod (402) is threadedly connected. Movable block one (403), one side of the movable block one (403) is fixedly connected to one side of the upper splint (13), the surface of the screw rod one (402) is fixedly connected with a pulley one, and the pulley one The surface of the pulley is connected with the second pulley through the belt (406). The inner wall of the pulley is fixedly connected with the screw rod 2 (407). The surface of the screw rod 2 (407) is threadedly connected with the movable block 2. The movable block One side of the two is fixedly connected to the side of the upper splint (13) away from the movable block one (403). 2. A lithium iron manganese phosphate soft pack battery forming fixture according to claim 1, characterized in that the internal array of the lower clamping plate (12) has several internal arrays for heating the soft pack battery body (14). Component(5). 3. A lithium iron manganese phosphate soft pack battery forming fixture according to claim 2, characterized in that the heating component (5) includes a rectangular groove (501), and the inside of the rectangular groove (501) is passed through bolts. Component 1 is fixedly installed with several heating blocks (502), and a stainless steel contact plate (503) is fixedly connected to the inside of the rectangular groove (501). 4. A lithium iron manganese phosphate soft pack battery forming fixture according to claim 1, characterized in that the side of the movable block one (403) away from the upper splint (13) is fixedly connected with a slider (404) , a chute (405) is provided on the side of the bracket (11) close to the movable block one (403), and the slide block (404) is slidingly connected to the chute (405). 5. A lithium iron manganese phosphate soft pack battery forming fixture according to claim 1, characterized in that the lower clamping plate (12) is fixedly installed on the top of the bottom plate (1) through two bolt assemblies. 6. A lithium iron manganese phosphate soft pack battery forming fixture according to claim 1, characterized in that one side of the upper splint (13) is fixedly installed on the movable block one (403) away from the slider (403) through the bolt assembly three. 404) on one side, and the other side of the upper splint (13) is fixedly installed on one side of the movable block two through the bolt assembly four. 7. A lithium iron manganese phosphate soft pack battery forming fixture according to claim 1, characterized in that the top end of the screw rod (402) and the inner wall of the bracket (11) are rotationally connected through a bearing. 8. A lithium iron manganese phosphate soft pack battery forming fixture according to claim 1, characterized in that a fixing block (6) is fixedly installed on the side of the bracket (11) close to the lower splint (12) by welding. , the side of the fixed block (6) away from the bracket (11) and the side of the lower splint (12) are fixedly connected through bolt assemblies five. 9. A lithium iron manganese phosphate soft pack battery forming fixture according to claim 1, characterized in that the bottom end of the screw rod one (402) is rotationally connected to the inner wall of the bracket (11) through a bearing two.