CN216980652U - Battery cell bottom plate carrying and opening and closing device and battery cell bottom plate carrying device - Google Patents

Abstract

The utility model discloses a cell bottom plate carrying and opening and closing device and a cell bottom plate carrying device manufactured by the cell, which comprise a bearing part, a bottom plate pressing part and a bottom plate pressing driving part, wherein the bearing part is horizontally arranged and used for bearing a bottom plate; the two groups of pressure bottom plate parts are respectively arranged on two sides of the bearing part; the pressing bottom plate driving part is arranged below the pressing bottom plate part and used for outputting upward power, and the pressing bottom plate part is driven to move along the horizontal direction and the vertical direction through the jacking guide groove and the jacking block which extend downwards in an inclined mode, so that the pressing bottom plate part compresses the bottom plate on the bearing part. The utility model has the advantages of self-clamping fixation and single-power loosening of the outer plate, effectively ensures the carrying stability of the outer plate and avoids the problem of motion interference.

Description

Battery cell bottom plate carrying and opening and closing device and battery cell bottom plate carrying device

Technical Field

The utility model relates to the field of lithium ion power batteries, in particular to a battery cell bottom plate carrying and opening and closing device suitable for a lithium ion power battery pole piece manufacturing process and a battery cell bottom plate carrying device.

Background

Lithium battery refers to a battery containing Lithium including metallic Lithium, Lithium alloy and Lithium ion, Lithium polymer in electrochemical system. Lithium batteries can be broadly classified into two types: lithium metal batteries and lithium ion batteries. A lithium battery is a type of rechargeable battery that mainly operates by movement of lithium ions between a positive electrode and a negative electrode. Batteries using a material containing lithium as an electrode are typical of modern high-performance batteries. With the development of new energy greatly promoted by the state, the demand of various industries on lithium ion power batteries is increasing day by day, and a battery cell in a composition structure of the lithium ion power battery is a core component of the lithium ion power battery, and the battery cell is generally formed by mutually overlapping positive and negative pole pieces in a staggered manner. The battery core composition structure comprises a plurality of positive and negative pole pieces which are staggered and overlapped up and down, and the positive and negative pole pieces are isolated and insulated by a diaphragm. At present, lithium battery equipment with more advanced domestic technology is mainly mastered by foreign equipment suppliers, and domestic high-end lithium battery lamination equipment mainly depends on import at present.

The electric core of the lithium ion battery is generally formed by overlapping positive and negative pole pieces in a staggered manner, and an insulating diaphragm is required to be inserted between the positive and negative pole pieces. The existing battery core manufacturing process comprises two modes of strip lamination and single lamination according to different diaphragm inserting processes, namely continuous diaphragms and single diaphragm lamination are adopted during lamination. For the strip lamination process, positive and negative pole pieces are alternately placed on a lamination platform during lamination, a strip diaphragm is circularly pulled back and forth above the lamination platform, the positive pole piece or the negative pole piece is covered on the surface of the positive pole piece or the negative pole piece after being laminated, and then the diaphragm is cut; this kind of lamination mode, belt form diaphragm tensioning and by the round trip pulling in the lamination process, there is stress inside, and the diaphragm surface can appear wrinkling the circumstances such as after deciding, influences electric core quality. For the single-sheet lamination process, the diaphragm is firstly cut into a single-sheet structure before lamination, the single-sheet diaphragm is laminated on the surface of the positive plate or the negative plate after the positive plate and the negative plate are laminated, the lamination process needs to take the diaphragm for multiple times to laminate the diaphragm, so that the lamination efficiency is low, the diaphragm needs to be aligned before lamination for ensuring the position precision of the lamination at each time, and the position precision of the lamination is difficult to effectively ensure.

Aiming at the belt-shaped lamination process, the following technical difficult problems need to be solved in the process of carrying out automatic lamination design: because the pole pieces and the diaphragms are made of flexible materials, deformation caused by external clamping force is easy to occur in the process of moving the laminated and laminated battery cores, so that the surfaces of the diaphragms or the pole pieces are wrinkled; in addition, because the positive and negative pole pieces and the diaphragm are only in a physical flat state when being alternately stacked in the stacking process, when the stacked battery cell is taken out and moved, the dislocation displacement between different layers of the battery cell is very easy to generate, a rigid plate body is firstly stacked on a stacking platform in the actual stacking process, then the diaphragm is stacked on the outer plate, the outer plate is stacked on the uppermost layer after the stacking is finished, the battery cell layer is clamped in the middle by the upper and lower outer plates, so that the pole pieces and the diaphragm are protected, and the pole pieces are taken and placed by pressing the outer plate on the uppermost layer and then are not contacted with the battery cell layer from the outer side, so that the dislocation condition of the battery cell layer can be avoided; based on the above process requirements, the problems of automatic carrying of the outer plate and fixing of the outer plate in the carrying process need to be solved in the cell lamination process, so that the position precision of the outer plate is ensured, and the problems of movement interference between the two actions of fixing the outer plate and taking and placing the outer plate are solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of the prior art, and provides a cell bottom plate carrying and opening and closing device and a cell bottom plate carrying device which are provided with a self-clamping fixing function and a single-power loosening outer plate, effectively ensure the carrying stability of the outer plate and avoid the motion interference problem.

The technical scheme adopted by the utility model is as follows: a cell bottom plate carrying and opening and closing device comprises a bearing part, a bottom plate pressing part and a bottom plate pressing driving part, wherein the bearing part is horizontally arranged and used for bearing a bottom plate; the two groups of pressure bottom plate components are respectively arranged at two sides of the bearing component; the pressing bottom plate driving part is arranged below the pressing bottom plate part and used for outputting upward power, and the pressing bottom plate part is driven to move along the horizontal direction and the vertical direction through the jacking guide groove and the jacking block which extend downwards in an inclined mode, so that the pressing bottom plate part compresses the bottom plate on the bearing part.

Preferably, the bearing part comprises a bottom plate support platform, wherein the bottom plate support platform is horizontally arranged, and at least two vacuum suction holes are distributed on the surface of the bottom plate support platform.

Preferably, the bottom pressing plate part comprises a movable seat, a movable guide rod, a pressing plate sheet, a first roller, a pressing plate spring and a second roller, wherein the movable seat is horizontally slidably connected to the bottom of the bottom plate supporting platform, horizontally extends to the outer side of the bottom plate supporting platform and is connected with the bottom plate supporting platform through the pressing plate spring, and the elastic force of the pressing plate spring pulls the movable seat to move towards the middle position of the bottom plate supporting platform.

Preferably, the movable guide rods comprise at least two movable guide rods, and the at least two movable guide rods are slidably inserted in the vertical direction on the outer side part of the movable seat extending to the bottom plate support platform; the pressing plate sheet is horizontally arranged at the top of the movable guide rod, is positioned above the bottom plate supporting platform and horizontally extends towards the middle position of the bottom plate supporting platform; the first roller and the second roller are respectively and rotatably connected to the side parts of the pressing plate piece and the movable seat through connecting columns.

Preferably, the pressing plate driving part comprises a pressing plate driving motor, a pressing plate driving seat, a pressing plate top block and a jacking guide groove, wherein the pressing plate driving seat is horizontally arranged, and a U-shaped groove body with an open top surface and open left and right side surfaces is arranged in the pressing plate driving seat; the pressure bottom plate driving motor is arranged below the pressure bottom plate driving seat, and the output end of the pressure bottom plate driving motor is upwards connected to the pressure bottom plate driving seat and used for driving the pressure bottom plate driving seat to move up and down; the two sides of the U-shaped groove body of the pressing bottom plate driving seat are respectively provided with a lifting part extending upwards.

Preferably, the pressing plate fixed block and the jacking guide groove are respectively arranged on the jacking part and respectively correspond to the first roller and the second roller up and down, and the jacking guide groove obliquely extends downwards from the middle part of the bottom plate supporting platform towards the outer side direction.

The utility model has the beneficial effects that:

aiming at the defects and shortcomings in the prior art, the utility model independently develops and designs the cell bottom plate carrying and opening and closing device which has the functions of self-clamping fixing and single-power loosening of the outer plate, effectively ensures the carrying stability of the outer plate and avoids the problem of motion interference, and the cell bottom plate carrying device.

The utility model is applied to the field of the manufacturing process of the battery core of the lithium battery, and is different from the traditional battery core manufacturing process in that the utility model introduces an auxiliary component outer plate, namely rigid outer plates are stacked on the bottom layer and/or the top layer of the stacked battery core in the battery core stacking manufacturing process, the outer plates can be hard plastic or metal plates, and the movement and other actions of the battery core can be realized by pressing the upper and lower outer plates to fix the position of the middle battery core layer by means of a rigid characteristic external mechanism of the outer plates and clamping the outer plates from the side when the rear section of the manufactured battery core relates to the clamping, the movement and other actions of the battery core by the auxiliary outer plates.

The utility model integrally comprises a bearing part, an outer plate pressing part and an outer plate pressing driving part, wherein the bearing part and the outer plate pressing part integrally move, the outer plate pressing driving part is fixedly arranged at a material taking station and a material loading station, the outer plate pressing part automatically presses and fixes a bearing outer plate in the outer plate carrying process so as to ensure the accuracy of the position of the outer plate in the carrying process, and when the bearing part moves to the two stations, the outer plate pressing driving part outputs an upward power to the outer plate pressing part so that the outer plate pressing part automatically loosens the outer plate so as to take and place the outer plate. Specifically, the bearing part of the utility model takes a horizontally arranged outer plate support platform as the bearing part, a bottom plate of the outer plate support platform is provided with a chute so as to be in slidable embedded connection with the single slide rail, meanwhile, a pressing block extending downwards is also arranged at the side part of the chute, the pressing block presses the carrying conveyor belt, and the carrying conveyor belt drives the pressing block to drive the whole carrying platform to move linearly through static friction force; the upper surface of the outer plate support is provided with a plurality of vacuum suction holes for bearing and adsorbing the outer plate. Particularly, the movable seat is connected below the outer plate supporting platform in a sliding mode along the horizontal direction, the movable seat is connected with the outer plate supporting platform through the pressing plate spring, and the movable seat is pulled towards the direction close to the outer plate supporting platform by the internal elastic force of the pressing plate spring in a natural state; meanwhile, a plurality of movable guide rods are slidably inserted in the movable seat along the vertical direction, the tops of the movable guide rods extend to the upper part of the outer plate supporting table and are horizontally connected with a pressing plate piece, and the movable guide rods and the pressing plate piece are pressed downwards to the outer plate supporting table under the action of self gravity in a natural state; thereby realized the carriage state down the pressure strip from the outside and the top compress tightly the planking on the planking brace through above elasticity and gravity action, guaranteed the carriage in-process planking position stability. In addition, a second roller is rotatably arranged below the movable seat, and a first roller is rotatably arranged outside the pressing plate piece. The utility model uses the U-shaped groove body with the top surface and the left and right side surfaces as open surfaces as a pressing outer plate driving seat as a bearing part, the pressing outer plate driving seat is respectively provided with a pressing plate top block and a jacking guide groove along the groove wall extending upwards along the two sides of an outer plate support platform, the upper part of the jacking guide groove is opened and slantways extends downwards from the middle part of the outer plate support platform, the pressing plate top block and the jacking guide groove are respectively arranged corresponding to the first roller and the second roller in the vertical direction, when the pressing outer plate driving seat is driven by a pressing outer plate driving cylinder below to ascend, the pressing plate top block upwards jacks the first roller to ensure that a pressing plate sheet is separated from the outer plate support platform upwards, the jacking guide groove enables the second roller to be embedded, the slanting inner wall of the jacking guide groove drives the second roller to drive the movable seat to be separated from the outer side direction of the outer plate support platform, thereby emptying the space above the outer plate support platform, so as to facilitate the actions of taking and placing the outer plate, and avoid the interference of the pressing plate and the movement when the outer plate is taken and placed.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the second embodiment of the present invention.

Detailed Description

The utility model will be further described with reference to the accompanying drawings in which:

as shown in fig. 1 to 2, the technical solution adopted by the present invention is as follows: a battery cell bottom plate carrying and opening and closing device comprises a bearing part, a bottom plate pressing part and a bottom plate pressing driving part, wherein the bearing part is horizontally arranged and used for bearing a bottom plate; the two groups of pressure bottom plate components are respectively arranged at two sides of the bearing component; the pressing bottom plate driving component is arranged below the pressing bottom plate component and used for outputting upward power, and the jacking guide grooves and the jacking blocks extending downwards in an inclined mode respectively drive the pressing bottom plate component to move along the horizontal direction and the vertical direction, so that the pressing bottom plate component compresses the bottom plate on the bearing component.

Preferably, the bearing component includes a bottom plate supporting platform 124, wherein the bottom plate supporting platform 124 is horizontally arranged, and at least two vacuum suction holes are distributed on the surface of the bottom plate supporting platform 124.

Preferably, the bottom plate pressing component includes a movable seat 125, a movable guide rod 126, a pressing plate 127, a first roller 128, a pressing plate spring 129 and a second roller 1210, wherein the movable seat 125 is horizontally slidably connected to the bottom of the bottom plate support 124, and horizontally extends to the outer side of the bottom plate support 124, and is connected to the bottom plate support 124 through the pressing plate spring 129, and the elastic force of the pressing plate spring 129 pulls the movable seat 125 to move toward the middle position of the bottom plate support 124.

Preferably, the number of the movable guide rods 126 is at least two, and at least two movable guide rods 126 are slidably inserted in the vertical direction in the movable base 125 and extend to the outer side of the bottom plate abutment 124; the pressing plate 127 is horizontally arranged on the top of the movable guide rod 126, is positioned above the bottom plate supporting platform 124, and horizontally extends towards the middle position of the bottom plate supporting platform 124; the first roller 128 and the second roller 1210 are rotatably connected to the pressing plate 127 and the side of the movable seat 125 through connecting columns, respectively.

Preferably, the pressing plate driving part comprises a pressing plate driving motor 120, a pressing plate driving seat 121, a pressing plate top block 122 and a jacking guide groove 123, wherein the pressing plate driving seat 121 is horizontally arranged, and a U-shaped groove body with an open top surface and left and right side surfaces is arranged in the pressing plate driving seat 121; the bottom plate driving motor 120 is disposed below the bottom plate driving seat 121, and the output end of the bottom plate driving motor is upwardly connected to the bottom plate driving seat 121 for driving the bottom plate driving seat 121 to move up and down; the pressing plate driving seat 121 is provided with a lifting portion extending upward on each of both sides of the U-shaped groove.

Preferably, the pressing plate fixing block 122 and the jacking guide groove 123 are respectively disposed on the jacking portion, and are respectively disposed corresponding to the first roller 128 and the second roller 1210 in an up-and-down manner, and the jacking guide groove 123 extends obliquely downward from the middle of the bottom plate supporting stand 124 toward the outer side.

The utility model is applied to a cell-made bottom plate carrying device, which also comprises a carrying single slide rail and a lifting component, wherein,

the carrying single slide rail is horizontally arranged and is used for carrying and transporting the cell bottom plate carrying and opening and closing device;

the lifting assembly is arranged at the end part of the carrying single slide rail, is butted with the carrying single slide rail and is used for bearing the battery cell bottom plate carrying and opening and closing device and driving the battery cell bottom plate carrying and opening and closing device to move along the vertical direction.

Furthermore, the utility model designs the battery cell bottom plate carrying and opening and closing device which has the advantages of self-clamping fixation and single-power loosening of the outer plate, effectively ensures the carrying stability of the outer plate and avoids the problem of motion interference, and the battery cell is manufactured into the bottom plate carrying device.

The utility model is applied to the field of the manufacturing process of the lithium battery cell, and is different from the traditional cell manufacturing process in that an auxiliary component outer plate is introduced, namely rigid outer plates are stacked on the bottom layer and/or the top layer of the stacked cell in the cell stacking manufacturing process, the outer plates can be made of hard plastic or metal plates, the auxiliary outer plates are used for fixing the position of the middle cell layer by pressing the upper and lower outer plates through a rigid characteristic external mechanism of the outer plates when the processes of clamping, moving and the like of the cell are performed in the rear section of the manufactured cell, and then the outer plates are clamped from the side to realize the movement and the like of the cell.

The utility model integrally comprises a bearing part, an outer plate pressing part and an outer plate pressing driving part, wherein the bearing part and the outer plate pressing part integrally move, the outer plate pressing driving part is fixedly arranged at a material taking station and a material loading station, the outer plate pressing part automatically presses and fixes a bearing outer plate in the outer plate carrying process so as to ensure the accuracy of the position of the outer plate in the carrying process, and when the bearing part moves to the two stations, the outer plate pressing driving part outputs an upward power to the outer plate pressing part so that the outer plate pressing part automatically loosens the outer plate so as to take and place the outer plate. Specifically, the bearing part of the utility model takes a horizontally arranged outer plate supporting platform as the bearing part, a bottom plate of the outer plate supporting platform is provided with a sliding chute so as to be in slidable embedded connection with the single sliding rail, meanwhile, a pressing block extending downwards is also arranged at the side part of the sliding chute, the pressing block presses the carrying conveyor belt, and the carrying conveyor belt drives the pressing block to drive the whole carrying platform to move linearly through static friction force; the upper surface of the outer plate support table is provided with a plurality of vacuum suction holes for bearing and adsorbing the outer plate. Particularly, the movable seat is connected below the outer plate supporting platform in a sliding mode along the horizontal direction, the movable seat is connected with the outer plate supporting platform through the pressing plate spring, and the movable seat is pulled towards the direction close to the outer plate supporting platform by the internal elastic force of the pressing plate spring in a natural state; meanwhile, a plurality of movable guide rods are slidably inserted in the movable seat along the vertical direction, the tops of the movable guide rods extend to the upper part of the outer plate supporting table and are horizontally connected with a pressing plate piece, and the movable guide rods and the pressing plate piece are pressed downwards to the outer plate supporting table under the action of self gravity in a natural state; thereby realized pressing the planking on the planking brace from the outside and top under the delivery state through above elasticity and gravity action, guaranteed the planking position stability in the delivery process. In addition, a second roller is rotatably arranged below the movable seat, and a first roller is rotatably arranged outside the pressing plate piece. The outer plate pressing driving part of the utility model takes a U-shaped groove body with the top surface and the left and right side surfaces as open surfaces as an outer plate pressing driving seat as a bearing part, the outer plate pressing driving seat is respectively provided with a pressing plate top block and a jacking guide groove along the groove wall extending upwards along the two sides of an outer plate supporting platform, the upper part of the jacking guide groove is opened and extends downwards in an inclined way from the middle part of the outer plate supporting platform, the pressing plate top block and the jacking guide groove are respectively arranged corresponding to the first roller and the second roller in the vertical direction, when the outer plate pressing driving seat is driven to ascend by a lower outer plate pressing driving cylinder, the pressing plate top block upwards jacks the first roller to enable a pressing plate sheet to be separated from the outer plate supporting platform, the jacking guide groove enables the second roller to be embedded, the inclined inner wall of the jacking guide groove drives the second roller to drive the movable seat to be separated from the outer plate supporting platform towards the outer side direction of the outer plate supporting platform, thereby the space above the outer plate supporting platform is emptied, so as to facilitate the actions of taking and placing the outer plate, and avoid the interference of the pressing plate and the movement when the outer plate is taken and placed.

The embodiments of the present invention are merely illustrative of specific embodiments thereof, and are not intended to limit the scope thereof. Since the present invention can be modified by a person skilled in the art, the present invention is not limited to the embodiments described above.

Claims (7)

1. The utility model provides a device that opens and shuts is carried to electricity core bottom plate which characterized in that: the device comprises a bearing part, a bottom pressing plate part and a bottom pressing plate driving part, wherein the bearing part is horizontally arranged and used for bearing a bottom plate; the two groups of pressure bottom plate components are respectively arranged at two sides of the bearing component; the pressing bottom plate driving part is arranged below the pressing bottom plate part and used for outputting upward power, and the pressing bottom plate part is driven to move along the horizontal direction and the vertical direction through the jacking guide groove and the jacking block which extend downwards in an inclined mode, so that the pressing bottom plate part compresses the bottom plate on the bearing part.

2. The cell floor carrying and opening and closing device of claim 1, wherein: the bearing part comprises a bottom plate supporting platform (124), wherein the bottom plate supporting platform (124) is horizontally arranged, and at least two vacuum suction holes are distributed on the surface of the bottom plate supporting platform (124).

3. The cell floor carrying and opening and closing device of claim 2, wherein: the bottom pressing plate component comprises a movable seat (125), a movable guide rod (126), a pressing plate sheet (127), a first roller (128), a pressing plate spring (129) and a second roller (1210), wherein the movable seat (125) is horizontally connected to the bottom of the bottom plate supporting platform (124) in a sliding mode, horizontally extends to the outer side of the bottom plate supporting platform (124) and is connected with the bottom plate supporting platform (124) through the pressing plate spring (129), and the elastic force of the pressing plate spring (129) pulls the movable seat (125) to move towards the middle position of the bottom plate supporting platform (124).

4. The cell floor carrying and opening and closing device of claim 3, wherein: the movable guide rods (126) comprise at least two, and the at least two movable guide rods (126) are slidably inserted in the movable seat (125) along the vertical direction and extend to the outer side part of the bottom plate support platform (124); the pressure plate sheet (127) is horizontally arranged at the top of the movable guide rod (126), is positioned above the bottom plate supporting platform (124), and horizontally extends towards the middle position of the bottom plate supporting platform (124); the first roller (128) and the second roller (1210) are rotatably connected to the pressing plate (127) and the side of the movable seat (125) through connecting columns, respectively.

5. The cell floor carrying and opening and closing device of claim 4, wherein: the pressing plate driving part comprises a pressing plate driving motor (120), a pressing plate driving seat (121), a pressing plate top block (122) and a jacking guide groove (123), wherein the pressing plate driving seat (121) is horizontally arranged, and a U-shaped groove body with an open top surface and left and right side surfaces is arranged in the pressing plate driving seat (121); the pressure bottom plate driving motor (120) is arranged below the pressure bottom plate driving seat (121), and the output end of the pressure bottom plate driving motor is upwards connected to the pressure bottom plate driving seat (121) and used for driving the pressure bottom plate driving seat (121) to move up and down; the two sides of the U-shaped groove body of the pressing bottom plate driving seat (121) are respectively provided with a lifting part extending upwards.

6. The cell floor carrying and opening and closing device of claim 5, wherein: the pressing plate jacking block (122) and the jacking guide groove (123) are respectively arranged on the jacking part and respectively correspond to the first roller (128) and the second roller (1210) up and down, and the jacking guide groove (123) obliquely extends downwards from the middle part of the bottom plate supporting platform (124) towards the outer side direction.

7. The utility model provides a bottom plate delivery device is made to electricity core which characterized in that: the battery cell bottom plate carrying and opening and closing device comprises the battery cell bottom plate carrying and opening and closing device of any one of claims 1 to 6, and further comprises a carrying single slide rail and a lifting assembly, wherein,

the carrying single slide rail is horizontally arranged and is used for carrying and transporting the cell bottom plate carrying and opening and closing device;

the lifting assembly is arranged at the end part of the carrying single slide rail, is butted with the carrying single slide rail and is used for bearing the battery cell bottom plate carrying and opening and closing device and driving the battery cell bottom plate carrying and opening and closing device to move along the vertical direction.

Images