WO2024138893A1 - Device for disassembling power battery module and method for disassembling power battery module - Google Patents

Abstract

The present application provides a device for disassembling a power battery module and a method for disassembling a power battery module. The device for disassembling a power battery module comprises a rack, a feeding and discharging mechanism, a two-side clamping device, a bottom plate tearing down-pressing device, and a grabbing mechanism. The bottom plate tearing down-pressing device, the grabbing mechanism, the two-side clamping device, and the feeding and discharging mechanism are all provided on the rack. The bottom plate tearing down-pressing mechanism and the grabbing mechanism are both located above the feeding and discharging mechanism. When a power battery module to be disassembled enters the feeding and discharging mechanism, the two-side clamping device and the bottom plate tearing down-pressing device fix said power battery module, and the bottom plate tearing down-pressing device clamps and tears a bottom plate of the power battery module, thereby separating the bottom plate of the power battery module from a battery cell.

Description

Power battery module disassembly device and power battery module disassembly method

This application claims priority to the Chinese patent application filed with the China Patent Office on December 28, 2022, with application number 202211707894.9, the entire contents of which are incorporated by reference into this application.

Technical Field

The present application relates to the field of power battery recycling, for example, to a power battery module disassembly device and a power battery module disassembly method.

Background technique

In the recycling and production process of new energy power batteries, the disassembly of the power battery module base plate requires a lot of man-hours and is a bottleneck in the production process. In general, power batteries use glue to fix multiple battery cells on the battery module base plate. The traditional power battery disassembly method is to manually cut the battery cells off the base plate with handheld cutting equipment. However, this method is slow and inefficient, and the cutting equipment is prone to damage the battery cells, which in turn affects the recycling of the battery cells.

Therefore, there is an urgent need for a power battery module bottom plate disassembly device and method with high disassembly efficiency and no damage to the battery cells.

Summary of the invention

The present application provides a power battery module disassembly device and a power battery module disassembly method with high efficiency and low damage rate to battery cells.

This application is implemented through the following technical solutions:

A power battery module disassembly device, comprising:

frame;

A loading and unloading mechanism, which is arranged on the frame and configured to load and unload the power battery module to be disassembled;

Clamping devices on both sides, which are arranged on the frame and located on a first side and a second side of the loading and unloading mechanism, and are configured to position the power battery module to be disassembled on the loading and unloading mechanism;

A bottom plate tearing and pressing device, the bottom plate tearing and pressing device is movably arranged on the frame and located above the loading and unloading mechanism, and the bottom plate tearing and pressing device is configured to tear and separate the bottom plate of the power battery module to be disassembled from the battery cell of the power battery module to be disassembled;

A gripping mechanism, the gripping mechanism is arranged on the frame and located above the loading and unloading mechanism, The grabbing mechanism is configured to grab the bottom plate from the bottom plate tearing and pressing device to the loading and unloading mechanism after the bottom plate is separated from the battery cell.

A power battery module disassembly method, using the power battery module disassembly device described in any of the above embodiments to disassemble the bottom plate of the power battery module; the disassembly method comprises:

Pre-processing the power battery module so that the first end of the bottom plate of the power battery module is tilted;

The power battery module is loaded by the loading and unloading mechanism, wherein the raised first end of the bottom plate of the power battery module is arranged adjacent to the clamping assembly;

Clamping the first side and the second side of the power battery module by the clamping devices on both sides;

Placing the raised first end of the bottom plate of the power battery module at the clamping position of the clamping assembly;

The travel drive assembly drives the clamping assembly to rotate in a positive direction and drives the sliding frame to slide in a first direction, and the pressing and rolling mechanism presses and rolls against the battery monomer until the sliding frame slides to a preset position relative to the frame, so that the clamping assembly clamps and rolls the bottom plate;

Controlling the grabbing mechanism to clamp and fix the second end of the base plate located on the clamping assembly;

The travel drive assembly drives the clamping assembly to rotate in the reverse direction and drives the sliding frame to slide in the second direction, so that the clamping assembly releases the bottom plate;

Controlling the gripping mechanism to release the bottom plate;

The disassembled power battery module is removed from the loading and unloading mechanism.

BRIEF DESCRIPTION OF THE DRAWINGS

The following is an introduction to the drawings required for use in the embodiments. The following drawings only illustrate some embodiments of the present application and therefore should not be regarded as limiting the scope.

FIG1 is a schematic structural diagram of a power battery module disassembly device according to an embodiment;

FIG2 is another schematic diagram of the structure of the power battery module disassembly device shown in FIG1 ;

FIG3 is a partial enlarged schematic diagram of the power battery module disassembly device shown in FIG2 at position A;

FIG4 is a schematic structural diagram of a first fixing portion of the power battery module disassembly device shown in FIG1 ;

FIG5 is another schematic diagram of the structure of the power battery module disassembly device shown in FIG1 ;

FIG6 is a partial exploded schematic diagram of another structure of the power battery module disassembly device shown in FIG1 ;

FIG. 7 is a schematic diagram of a process of disassembling a power battery module according to an embodiment.

Detailed ways

The present application will be described below with reference to the accompanying drawings. The accompanying drawings provide optional implementations of the present application. However, the present application can be implemented in many different forms and is not limited to the implementations described herein.

It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and/or" used herein includes any and all combinations of one or more of the related listed items.

The present application provides a power battery module disassembly device, including a frame, a loading and unloading mechanism, clamping devices on both sides, a bottom plate tearing and pressing mechanism, and a grasping mechanism. Among them, the loading and unloading mechanism is arranged on the frame, and the loading and unloading mechanism is arranged to load and unload the power battery module to be disassembled; the clamping devices on both sides are arranged on the frame and located on the first side and the second side of the loading and unloading mechanism, and the clamping devices on both sides are arranged to position the power battery module on the loading and unloading mechanism; the bottom plate tearing and pressing device is movably arranged on the frame and located above the loading and unloading mechanism, and the bottom plate tearing and pressing device is arranged to tear and separate the bottom plate of the power battery module from the battery cell; the grasping mechanism is arranged on the frame and located above the loading and unloading mechanism, and the grasping mechanism is arranged to grab the bottom plate from the bottom plate tearing and pressing device to the loading and unloading mechanism after the bottom plate is separated from the battery cell.

The above-mentioned power battery module disassembly device, when the power battery module to be disassembled is placed on the loading and unloading mechanism, the first end of the bottom plate of the power battery module is placed on the bottom plate tearing and pressing device, at this time, the device is started, the clamping devices on both sides and the bottom plate tearing and pressing device fix the power battery module, the bottom plate tearing and pressing device slides along the horizontal direction where the gripping structure is located, and at the same time, the bottom plate tearing and pressing device rotates to clamp the bottom plate. Since the battery monomer is fixed in the corresponding position by the clamping devices on both sides, and the bottom plate tearing and pressing device rolls and abuts against the battery monomer, that is, the bottom plate is torn upward in the horizontal direction. The bottom plate moves horizontally in the tangential direction relative to the battery cell, and the bottom plate moves along the horizontal direction where the grabbing mechanism is located to generate a force on the battery cell. When the bottom plate tearing and pressing device moves to the corresponding position, the bottom plate is torn off the battery cell, that is, the bottom plate of the power battery module is disassembled by mechanized operation, so that the disassembly efficiency of the module is higher. Since there is no need to use cutting equipment to cut the bottom plate and the battery cell, the bottom plate can be separated and torn off from the battery cell adhered to the bottom plate only through the clamping and tearing force, which reduces the damage rate to the battery cell.

The present application is described below with reference to specific embodiments.

As shown in FIG. 1 , a power battery module disassembly device 10 according to an embodiment includes a frame 100 , a loading and unloading mechanism 200 , clamping devices 300 on both sides, a gripping mechanism 600 , and a bottom plate tearing and pressing device 700 . Among them, the loading and unloading mechanism 200 is arranged on the frame 100, and the loading and unloading mechanism 200 is configured to load and unload the power battery module to be disassembled; the clamping devices 300 on both sides are arranged on the frame 100, and the clamping devices 300 on both sides are configured to position the power battery module to be disassembled on the loading and unloading mechanism 200; the bottom plate tearing and pressing device 700 is movably arranged on the frame 100 and located above the loading and unloading mechanism 200, and the bottom plate tearing and pressing device 700 is configured to tear and separate the bottom plate of the power battery module to be disassembled from the battery cell of the power battery module to be disassembled; the grasping mechanism 600 is arranged on the frame 100 and located above the loading and unloading mechanism 200, and the grasping mechanism 600 is configured to grasp the bottom plate of the power battery module to be disassembled from the bottom plate tearing and pressing device 700 to the loading and unloading mechanism 200 after the bottom plate of the power battery module to be disassembled is separated from the battery cell.

When the power battery module is placed on the loading and unloading mechanism 200, the first end of the bottom plate is placed on the bottom plate tearing and pressing device 700, and the clamping devices 300 on both sides fix the power battery module in the horizontal direction. At the same time, the bottom plate tearing and pressing device 700 presses down to abut the battery cell, and exerts a force on the battery cell in the vertical direction. In the process of the bottom plate tearing and pressing device 700 moving along the horizontal direction where the gripping mechanism 600 is located, since the first end of the bottom plate is rotated and clamped by the bottom plate tearing and pressing device 700, and the bottom plate moves along the horizontal direction where the gripping mechanism 600 is located, and since the battery cell is fixed in the corresponding position by the clamping devices 300 on both sides and the bottom plate tearing and pressing device 700, the bottom plate has a tearing force on the battery cell. When the bottom plate is clamped by the bottom plate tearing and pressing device 700 and moves to the corresponding position, the bottom plate is torn off the battery cell.

After the bottom plate is torn off from the battery cell, the second end of the bottom plate is placed on the gripping mechanism 600. At this time, the bottom plate tearing and pressing device 700 moves in a horizontal direction away from the gripping mechanism 600 and releases the rotation of the bottom plate. The gripping mechanism 600 clamps the rotation of the bottom plate. When the bottom plate tearing and pressing device 700 is in the process of resetting, that is, when the bottom plate tearing and pressing device 700 is moving along the initial position, the bottom plate is transferred from the bottom plate tearing and pressing device 700 to the gripping mechanism 600.

The above-mentioned power battery module disassembly device 10, when the power battery module to be disassembled is placed on the loading and unloading mechanism 200, the first end of the bottom plate of the power battery module is placed on the bottom plate tearing and pressing device 700, and the device is started at this time. The clamping devices 300 on both sides and the bottom plate tearing and pressing device 700 fix the power battery module, and the bottom plate tearing and pressing device 700 slides along the horizontal direction where the gripping structure 600 is located. At the same time, the bottom plate tearing and pressing device 700 rotates to clamp the bottom plate. Since the battery cells are fixed in the corresponding positions by the clamping devices 300 on both sides, and the bottom plate tearing and pressing device The bottom plate is placed 700 to roll against the battery monomer, that is, the bottom plate is torn upward in a horizontal tangential direction relative to the battery monomer, and the bottom plate moves in the horizontal direction where the gripping mechanism 600 is located to generate a force on the battery monomer. When the bottom plate tearing and pressing device 700 travels to the corresponding position, the bottom plate is torn off from the battery monomer, that is, the bottom plate of the power battery module is disassembled by mechanized operation, so that the disassembly efficiency of the module is high; and since there is no need to use cutting equipment to cut the bottom plate and the battery monomer, the bottom plate and the battery monomer bonded to the bottom plate can be separated by the clamping and tearing force. The battery cells are separated and torn off, which reduces the damage rate to the battery cells.

As shown in FIGS. 1 to 3 , in one embodiment, the bottom plate tearing and pressing device 700 includes a bottom plate tearing mechanism 400 and a pressing and rolling mechanism 500. The bottom plate tearing mechanism 400 includes a travel drive assembly 410, a sliding frame 420 and a clamping assembly 430. The travel drive assembly 410 is movably arranged on the frame 100. The power output end of the travel drive assembly 410 is connected to the sliding frame 420. The travel drive assembly 410 is arranged to drive the sliding frame 420 to move in a first direction or a second direction relative to the frame 100. The first direction is a horizontal direction along the gripping mechanism 600, and the second direction is a horizontal direction away from the gripping mechanism 600. The first direction and the second direction are opposite.

The clamping assembly 430 is movably disposed on the sliding frame 420, and the clamping assembly 430 is also connected to the power output end of the travel drive assembly 410. The travel drive assembly 410 is configured to drive the clamping assembly 430 to rotate in a forward or reverse direction so that the clamping assembly 430 clamps or releases the bottom plate. The travel drive assembly 410 is also configured to drive the sliding frame 420 to slide relative to the frame 100 in a first direction when the clamping assembly 430 is driven to rotate in a forward direction, that is, when the clamping assembly 430 is driven to rotate in a forward direction, the travel drive assembly 410 simultaneously drives the sliding frame 420 to slide relative to the frame 100 in the first direction; when the travel drive assembly 410 drives the clamping assembly 430 to rotate in a reverse direction, the sliding frame 420 is driven to slide relative to the frame 100 in a second direction opposite to the first direction, that is, when the clamping assembly 430 is driven to rotate in a reverse direction, the travel drive assembly 410 simultaneously drives the sliding frame 420 to slide relative to the frame 100 in the second direction opposite to the first direction.

The clamping assembly 430 is configured to clamp or loosen the bottom plate of the power battery module; the pressing and rolling mechanism 500 is arranged on the frame 100, and the pressing and rolling mechanism 500 is configured to press and roll against the battery cells of the power battery module when the clamping assembly 430 is driven to rotate in the forward direction; the grasping mechanism 600 is arranged on the frame 100, and the grasping mechanism 600 is configured to clamp the second end of the bottom plate when the travel driving assembly 410 drives the sliding frame 420 to slide to a preset position along the first direction relative to the frame 100.

When the travel drive component 410 drives the clamping component 430 to rotate in the forward direction, the travel drive component 410 drives the sliding frame 420 to slide in the first direction, the clamping component 430 clamps and rolls up the bottom plate, and at the same time the pressing and rolling mechanism 500 presses down and rolls to abut against the battery cell; when the travel drive component 410 drives the clamping component 430 to rotate in the reverse direction, the travel drive component 410 drives the sliding frame 420 to slide in the second direction opposite to the first direction, and at the same time the grasping mechanism 600 clamps the second end of the bottom plate, and the clamping component 430 releases the first end of the bottom plate.

In one of the embodiments, the loading and unloading mechanism 200 and the clamping devices 300 on both sides are located below the bottom plate tearing mechanism 400, and the power battery module to be disassembled is placed in the loading and unloading mechanism 200, and the first end of the bottom plate of the power battery module is placed in the clamping assembly 430; when the device is started, the clamping devices 300 on both sides fix the battery monomer, and the clamping devices 300 on both sides generate a force on the battery monomer in the horizontal direction, so that the battery monomer is fixed in the loading and unloading mechanism 200, that is, the battery monomer will not move in the horizontal direction; at this time, the pressing and rolling mechanism 500 is pressed down, and one end of the pressing and rolling mechanism 500 abuts against the battery monomer, The downward pressing rolling mechanism 500 generates a force on the battery cell in the vertical direction, so that the battery cell does not move in the vertical direction. At the same time, when the travel driving component 410 moves along the first direction, that is, it moves along the horizontal direction where the grasping mechanism 600 is located, the travel driving component 410 drives the clamping component 430 to rotate, that is, the clamping component 430 rotates in the positive direction. The positive rotation of the clamping component 430 causes the clamping component 430 to clamp the first end of the bottom plate.

Since the pressing rolling mechanism 500 is connected to the sliding frame 420, and the sliding frame 420 is also movably connected to the travel drive assembly 410, when the travel drive assembly 410 moves horizontally, it drives the sliding frame 420 to move horizontally together, that is, the pressing rolling mechanism 500 also moves in the horizontal direction. In this way, the pressing rolling mechanism 500 continuously exerts a force on the battery cell in the vertical direction when it moves horizontally, that is, the battery cell is fixed in the corresponding position under the joint action of the clamping devices 300 on both sides and the pressing rolling mechanism 500.

The travel drive assembly 410 is connected to the clamping assembly 430. When the travel drive assembly 410 moves along the first direction, that is, moves along the horizontal direction where the grasping mechanism 600 is located, the travel drive assembly 410 drives the clamping assembly 430 to rotate, that is, the clamping assembly 430 rotates in the positive direction. The positive rotation of the clamping assembly 430 causes the clamping assembly 430 to clamp the first end of the base plate. Since the battery cell is fixed in the corresponding position, the travel drive assembly 410 drives the clamping assembly 430 to move in the first direction. At this time, the clamping assembly 430 has a tearing force on the base plate. When the travel drive assembly 410 travels to the corresponding position, the base plate is completely torn off the battery cell.

The gripping mechanism 600 is fixed on the frame 100. When the bottom plate is completely torn off by the clamping assembly 430, the second end of the bottom plate is placed in the gripping mechanism 600. The gripping mechanism 600 rotates forward under the drive of the motor, so that the gripping mechanism 600 clamps the second end of the bottom plate. At this time, the travel drive assembly 410 starts to reset, that is, it moves in a second direction opposite to the first direction. The travel drive assembly 410 drives the clamping assembly 430 to rotate, and the clamping assembly 430 rotates in the reverse direction. The clamping assembly 430 rotates in the reverse direction and releases the first end of the bottom plate, that is, the clamping assembly 430 and the gripping mechanism 600 rotate in opposite directions. The clamping assembly 430 releases the first end of the bottom plate, that is, the first end of the bottom plate leaves the clamping assembly 430, and the second end of the bottom plate is fixedly clamped to the gripping mechanism 600. When the travel drive assembly 410 travels to the initial position, the bottom plate on the clamping assembly 430 is transferred to the gripping mechanism 600 for clamping. Thereafter, the clamping assembly 430 moves to the initial position along with the sliding frame 420. After the bottom plate is transferred to the grabbing mechanism 600, the motor is started to drive the grabbing mechanism 600 to rotate in the opposite direction, so that the bottom plate falls off from the grabbing mechanism 600, and the unloading operation of the bottom plate is completed.

As shown in FIGS. 2 to 4 , in one embodiment, the clamping assembly 430 includes a first clamping member 431, a second clamping member 432, and a first fixing portion 433. The first end and the second end of the first clamping member 431 are rotatably connected to the first fixing portion 433, and the first clamping member 431 is slidably connected to the sliding frame 420. The second clamping member 432 is rotatably connected to the first fixing portion 433, and the second clamping member 432 is slidably connected to the sliding frame 420.

There are two first fixing parts 433. One of the two first fixing parts 433 is connected to the power output end of the travel drive assembly 410. The two first fixing parts 433 are also connected to the sliding frame 420. Rotationally connected, each first fixing portion 433 is provided with a first guide groove 434 and a second guide groove 435. The first end and the second end of the first clamping member 431 are both provided with a first guide shaft 436, and the first end and the second end of the second clamping member 432 are both provided with a second guide shaft 437. The first guide shaft 436 at the first end and the first guide shaft 436 at the second end of the first clamping member 431 are respectively slidably disposed in the first guide grooves 434 of the two first fixing portions 433, and the second guide shaft 437 at the first end and the second guide shaft 437 at the second end of the second clamping member 432 are respectively slidably disposed in the second guide grooves 435 of the two first fixing portions 433.

In one embodiment, the first clamping member 431 is configured to move closer to the second clamping member 432 when the travel drive assembly 410 drives the first fixing portion 433 connected to the travel drive assembly to rotate in a forward driving direction, so as to clamp the bottom plate together. The first clamping member 431 is also configured to move away from the second clamping member 432 when the travel drive assembly drives the first fixing portion 433 connected to the travel drive assembly to rotate in a reverse driving direction, so as to loosen the bottom plate together.

In this embodiment, the first clamping member 431 and the second clamping member 432 are both semi-cylindrical in shape, the first end and the second end of the first clamping member 431 are respectively rotatably connected to the two first fixing portions 433, the first end and the second end of the second clamping member 432 are respectively rotatably connected to the two first fixing portions 433, the two first fixing portions 433 are both provided with a first guide groove 434 and a second guide groove 435, the first end and the second end of the first clamping member 431 are both protrudingly provided with a first guide shaft 436, the first guide shaft 436 at the first end of the first clamping member 431 and the first guide shaft 436 at the second end are respectively slidably disposed in the first guide groove 434 of the two first fixing portions 433, the first end and the second end of the second clamping member 432 are also protrudingly provided with a second guide shaft 437, the second guide shaft 437 at the first end and the second guide shaft 437 at the second end of the second clamping member 432 are respectively slidably disposed in the second guide groove 435 of the two first fixing portions 433.

When the travel drive assembly 410 moves along the first direction, the travel drive assembly 410 drives the clamping assembly 430 to rotate forward, the first guide shaft 436 slides forward in the first guide groove 434, and the second guide shaft 437 slides forward in the second guide groove 435, so that the first clamping member 431 and the second clamping member 432 approach each other, thereby clamping the base plate; when the travel drive assembly 410 moves along the second direction, the travel drive assembly 410 drives the clamping assembly 430 to rotate reversely, the first guide shaft 436 slides reversely in the first guide groove 434, and the second guide shaft 437 slides reversely in the second guide groove 435, thereby making the first clamping member 431 and the second clamping member 432 move away from each other, thereby loosening the base plate.

As shown in Figures 2 and 3, in one embodiment, the first clamping member 431 includes a first rotating clamping portion 438 and two first guide sliders 439, the first end and the second end of the first rotating clamping portion 438 are respectively connected to the two first guide sliders 439, the two first guide sliders 439 are slidably connected in the sliding frame 420, and the two first guide sliders 439 are respectively fixedly connected to the two first guide shafts 436.

Since the power output end of the travel drive assembly 410 is rotatably connected to one of the two first fixing parts 433, the first guide slider 439 is slidably connected in the sliding frame 420 and the two first guide sliders 439 are respectively fixedly connected to the two first guide shafts 436. When the gripping mechanism 600 moves in the same direction, that is, moves in the horizontal direction where the gripping mechanism 600 is located, the first guide shaft 436 connecting the two first guide sliders 439 slides forward along the extension direction of the first guide groove 434, so that the two first guide sliders 439 move toward the horizontal direction where the two second guide sliders 441 are located; similarly, the second guide shaft 437 connecting the two second guide sliders 441 slides forward along the extension direction of the second guide groove 435, so that the two second guide sliders 441 move toward the horizontal direction where the two first guide sliders 439 are located, thereby realizing the first rotating clamping portion 438 connected to the two first guide sliders 439 and the second rotating clamping portion 440 connected to the two second guide sliders 441 moving toward each other, thereby clamping the base plate.

When the travel drive assembly 410 moves in the second direction, that is, moves in a horizontal direction opposite to the first direction, the first guide shaft 436 connecting the two first guide sliders 439 slides in the opposite direction along the extension direction of the first guide groove 434, so that the two first guide sliders 439 move in a horizontal direction away from the two second guide sliders 441; similarly, the second guide shaft 437 connecting the two second guide sliders 441 slides in the opposite direction along the extension direction of the second guide groove 435, so that the two second guide sliders 441 move in a horizontal direction away from the two first guide sliders 439, thereby achieving the first rotating clamping portion 438 connected to the two first guide sliders 439 and the second rotating clamping portion 440 connected to the two second guide sliders 441 moving in opposite directions, thereby loosening the base plate.

As shown in Figures 2 and 3, in one embodiment, the second clamping member 432 includes a second rotating clamping portion 440 and two second guide sliders 441, the first end and the second end of the second rotating clamping portion 440 are respectively connected to the two second guide sliders 441, the two second guide sliders 441 are slidably connected in the sliding frame 420, and the two second guide sliders 441 are respectively fixedly connected to the two second guide shafts 437; when each second guide slider 441 and the corresponding first guide slider 439 slide toward each other in the sliding frame 420, the first rotating clamping portion 438 and the second rotating clamping portion 440 are relatively close to each other, and the bottom plate is clamped together; when each second guide slider 441 and the corresponding first guide slider 439 slide back and forth in the sliding frame 420, the first rotating clamping portion 438 and the second rotating clamping portion 440 are relatively far away from each other, and the bottom plate is loosened together. In this way, when the first guide shaft 436 slides along the first guide groove 434 and the second guide shaft 437 slides along the second guide groove 435, the bottom plate is clamped or loosened, and the problem of rotation of the sliding frame 420 is avoided, ensuring that the pressing mechanism 500 can always reliably press down on the surface of the battery cell, so that the bottom plate can be reliably separated from the battery cell, thereby realizing reliable disassembly of the power battery module.

When the travel drive assembly 410 moves along the first direction, that is, moves along the horizontal direction where the gripping mechanism 600 is located, the second guide shaft 437 connecting the two second guide sliders 441 slides forward along the extension direction of the second guide groove 435, so that the two second guide sliders 441 move toward the horizontal direction where the two first guide sliders 439 are located; similarly, the first guide shaft 436 connecting the two first guide sliders 439 slides forward along the extension direction of the first guide groove 434, so that the two first guide sliders 439 move toward the horizontal direction where the two second guide sliders 441 are located, thereby realizing the second rotating clamping portion 440 connected to the two second guide sliders 441 and the second rotating clamping portion 440 connected to the two first guide sliders 439. The first rotating clamping parts 438 move toward each other, thereby clamping the bottom plate.

When the travel drive assembly 410 moves in the second direction, that is, in a horizontal direction opposite to the first direction, the second guide shaft 437 connecting the two second guide sliders 441 slides in the opposite direction along the extension direction of the second guide groove 435, so that the two second guide sliders 441 move in a horizontal direction away from the two first guide sliders 439; similarly, the first guide shaft 436 connecting the two first guide sliders 439 slides in the opposite direction along the extension direction of the first guide groove 434, so that the two first guide sliders 439 move in a horizontal direction away from the two second guide sliders 441, thereby achieving the first rotating clamping portion 438 connected to the two first guide sliders 439 and the second rotating clamping portion 440 connected to the two second guide sliders 441 to move in opposite directions, thereby loosening the base plate.

As shown in FIG4 , in one embodiment, the first guide groove 434 and the second guide groove 435 are both in arc shape. The first guide shaft 436 is disposed in the first guide groove 434, and the second guide shaft 437 is disposed in the second guide groove 435. The first guide shaft 436 slides forward or backward along the extension direction of the first guide groove 434, and the second guide shaft 437 slides forward or backward along the extension direction of the second guide groove 435, so that the first rotating clamping portion 438 and the second rotating clamping portion 440 are moved closer or farther away, thereby causing the clamping assembly 430 to clamp or release the bottom plate. In this embodiment, the first guide groove 434 and the second guide groove 435 are both in arc shape.

As shown in FIG5 , in one embodiment, the travel drive assembly 410 includes a motor 411, a gear 412 and a rack 413, the rack 413 is arranged on the top of the frame 100, the gear 412 is meshed and driven on the rack 413, one end of the gear 412 is rotatably connected to the sliding frame 420, and the other end of the gear 412 is connected to the power output end of the motor 411, so that the travel drive assembly 410 drives the sliding frame to move relative to the frame, and can drive the clamping assembly to rotate, that is, can drive the clamping assembly to clamp or release the bottom plate. Under the drive of the motor 411, the gear 412 moves along the first direction or the second direction. When the gear 412 moves along the first direction, the clamping assembly 430 rotates in the forward direction to clamp the first end of the bottom plate and moves in the first direction, so that the bottom plate is torn off; when the gear 412 moves in the second direction, the clamping assembly 430 rotates in the reverse direction to release the first end of the bottom plate and moves in the second direction, so that the first end of the bottom plate falls off from the clamping assembly 430.

As shown in FIG5 , in one embodiment, the downward rolling mechanism 500 includes a vertical telescopic cylinder 510, a vertical infrared sensor 520 and a rolling wheel 530. The vertical telescopic cylinder 510 is mounted on the sliding frame 420. The output end of the vertical telescopic cylinder 510 is connected to the rolling wheel 530. The vertical infrared sensor 520 is electrically connected to the control end of the vertical telescopic cylinder 510. The vertical telescopic cylinder 510 is configured to drive the rolling wheel 530 to move to a predetermined height position when the vertical infrared sensor 520 senses the power battery module. When the device is started, the vertical infrared sensor 520 senses the position of the power battery module and releases a signal to press the vertical telescopic cylinder 510 downward, and the rolling wheel 530 abuts against the battery cell. Since the rolling wheel 530 is connected to the sliding frame 420, that is, when the sliding frame 420 moves in the first direction, the rolling wheel 530 also moves in the first direction, that is, the clamping assembly During the tearing operation 430 , the rolling wheel 530 continuously applies force to the battery cell so that the battery cell will not be lifted up during the tearing process of the bottom plate.

As shown in FIG1 , in one embodiment, the bottom plate tearing mechanism 400 and the grabbing mechanism 600 are both arranged at the top of the frame 100, so that the disassembly device can and relatively simply disassemble the bottom plate of the module, and at the same time, the structural design of the plug-in device is more reasonable. In other embodiments, the bottom plate tearing mechanism 400 and the grabbing mechanism 600 are not limited to being arranged at the top of the frame 100. For example, the bottom plate tearing mechanism 400 and the grabbing mechanism 600 can also be arranged at the bottom of the frame 100.

As shown in Figure 6, in one embodiment, the gripping mechanism 600 includes a material unloading drive member 610, two second fixed parts 620, a first material unloading clamping member 630 and a second material unloading clamping member 640, the material unloading drive member 610 is installed on the frame 100, the two second fixed parts 620 are both rotatably connected to the frame 100, and one of the two second fixed parts 620 is connected to the power output end of the material unloading drive member 610, the first end and the second end of the first material unloading clamping member 630 are respectively slidably connected to the two second fixed parts 620, and the first end and the second end of the second material unloading clamping member 640 are respectively slidably connected to the two second fixed parts 620. Among them, the first material unloading clamping member 630 is configured to approach the second material unloading clamping member 640 when the material unloading driving member 610 drives the first material unloading clamping member 630 in the forward rotation direction to clamp the bottom plate; the first material unloading clamping member 630 is also configured to move away from the second material unloading clamping member 640 when the material unloading driving member 610 drives the first material unloading clamping member 630 in the reverse rotation direction to loosen the bottom plate.

The gripping mechanism 600 is fixed on the frame 100, and the first end and the second end of the first material removal clamping member 630 are respectively slidably connected to the two second fixing parts 620, and the first end and the second end of the second material removal clamping member 640 are respectively slidably connected to the two second fixing parts 620. After the bottom plate is torn off from the battery cell, the second end of the bottom plate is placed on the clamping position between the first material removal clamping member 630 and the second material removal clamping member 640. When the clamping assembly 430 moves along the second direction, the material removal driving member 610 drives the first material removal clamping member 630 and the second material removal clamping member 640 to rotate forward, so that the first material removal clamping member 630 and the second material removal clamping member 640 are close to each other, thereby clamping the bottom plate, and at the first material removal clamping member During the positive rotation of the first material unloading clamping member 630 and the second material unloading clamping member 640, the base plate is wound from the clamping assembly 430 to the first material unloading clamping member 630 and the second material unloading clamping member 640; when the base plate is completely wound to the gripping mechanism 600, the unloading driving member 610 drives the first material unloading clamping member 630 and the second material unloading clamping member 640 to rotate in the opposite direction, so that the second material unloading clamping member 640 and the second material unloading clamping member 640 move away from each other, thereby loosening the base plate.

The present application also provides a power battery module disassembly method, which uses the power battery module disassembly device described in any of the above embodiments to disassemble the bottom plate of the power battery module. The above disassembly method includes:

S101, pre-processing the power battery module to make the first end of the bottom plate of the power battery module tilt up. The first end of the bottom plate of the power battery module tilts up through mechanical operation.

S103, loading the power battery module by the loading and unloading mechanism, wherein the first end of the raised bottom plate of the power battery module is arranged adjacent to the clamping assembly. One end enters the loading and unloading mechanism first.

S105, clamping the first side and the second side of the power battery module by using clamping devices on both sides.

As shown in FIG6 , in this embodiment, the clamping devices 300 on both sides include a horizontal infrared sensing component 310, two side fixing components 330 and a horizontal telescopic cylinder 320. The horizontal infrared sensing component 310 is electrically connected to the horizontal telescopic cylinder 320. The power output end of the horizontal telescopic cylinder 320 is connected to the two side fixing components 310. When the power battery module to be disassembled enters the loading and unloading mechanism, the horizontal infrared sensing component 310 releases a signal to enable the horizontal telescopic cylinder 320 to drive the two side fixing components 330 to fix the battery cells of the power battery module.

S107, placing the first raised end of the bottom plate of the power battery module in the clamping position of the clamping assembly. The first raised end of the pre-treated bottom plate is placed in the clamping position of the clamping assembly, that is, in the material transfer channel.

S109, the travel drive assembly drives the clamping assembly to rotate in the forward direction and drives the sliding frame to slide in the first direction, and at the same time, the downward pressing rolling mechanism presses and rolls against the battery cell until the sliding frame slides to a preset position relative to the frame, so that the clamping assembly clamps and reels the bottom plate. The travel drive assembly is rotationally connected to the clamping assembly, and when the travel drive assembly slides in the first direction, the clamping assembly rotates forward to clamp and reel the bottom plate, and at the same time, the downward pressing rolling mechanism presses and rolls against the surface of the battery cell, so that when the clamping assembly is tearing the bottom plate, the downward pressing rolling mechanism continuously applies force to the battery cell in the vertical direction to prevent the battery cell from tilting.

S111, controlling the grabbing mechanism to clamp and fix the second end of the base plate on the clamping assembly. The grabbing mechanism is driven by the motor to rotate forward so that the grabbing mechanism clamps the other end of the base plate.

S113, the travel drive assembly drives the clamping assembly to rotate in the reverse direction, and the travel drive assembly drives the sliding frame to slide in the second direction, so that the clamping assembly releases the bottom plate. The travel drive assembly drives the clamping assembly to rotate in the reverse direction, and the clamping assembly releases the first end of the bottom plate, and the gripping mechanism rotates forward, so that the gripping mechanism clamps and winds the second end of the bottom plate, that is, the clamping assembly and the gripping mechanism rotate in opposite directions, so that the bottom plate is wound onto the gripping mechanism.

S115, controlling the grabbing mechanism to release the bottom plate. The motor drives the grabbing mechanism to rotate in the opposite direction, so that the grabbing mechanism releases the bottom plate.

S117. Remove the disassembled power battery module from the loading and unloading mechanism.

Compared with the related art, the present application has at least the following advantages: the above-mentioned power battery module disassembly device, when the power battery module to be disassembled is placed on the loading and unloading mechanism, one end of the bottom plate of the power battery module is placed on the bottom plate tearing and pressing device, at this time, the device is started, the clamping devices on both sides and the bottom plate tearing and pressing device fix the power battery module, the bottom plate tearing and pressing device slides along the horizontal direction where the gripping structure is located, and at the same time, the bottom plate tearing and pressing device rotates to clamp the bottom plate, because the battery cell is fixed in the corresponding position by the clamping devices on both sides, and the bottom plate tearing and pressing device rolls and abuts the battery cell, that is, the bottom plate is torn upward in the lateral tangential direction relative to the battery cell and moves horizontally, and the bottom plate moves along the horizontal direction where the gripping mechanism is located. The horizontal movement exerts a force on the battery cell. When the bottom plate tearing and pressing device moves to the corresponding position, the bottom plate is torn off the battery cell, that is, the bottom plate of the power battery module is disassembled by mechanized operation, so that the disassembly efficiency of the module is higher. Because there is no need to use cutting equipment to cut the bottom plate and the battery cell, the bottom plate can be separated and torn off from the battery cell adhered to the bottom plate only through the clamping and tearing force, which reduces the damage rate to the battery cell.

Claims (10)

A power battery module disassembly device, comprising: frame; A loading and unloading mechanism, which is arranged on the frame and configured to load and unload the power battery module to be disassembled; Clamping devices on both sides, which are arranged on the frame and located on a first side and a second side of the loading and unloading mechanism, and are configured to position the power battery module to be disassembled on the loading and unloading mechanism; A bottom plate tearing and pressing device, the bottom plate tearing and pressing device is movably arranged on the frame and located above the loading and unloading mechanism, and the bottom plate tearing and pressing device is configured to tear and separate the bottom plate of the power battery module to be disassembled from the battery cell of the power battery module to be disassembled; A grabbing mechanism is arranged on the frame and located above the loading and unloading mechanism. The grabbing mechanism is arranged to tear the bottom plate from the bottom plate pressing device and grab it to the loading and unloading mechanism after the bottom plate is separated from the battery cell. The power battery module disassembly device according to claim 1, wherein the bottom plate tearing and pressing device comprises a bottom plate tearing mechanism and a pressing and rolling mechanism; The bottom plate tearing mechanism comprises a travel drive assembly, a sliding frame and a clamping assembly, wherein the travel drive assembly is movably arranged on the frame, a power output end of the travel drive assembly is connected to the sliding frame, the clamping assembly is movably arranged on the sliding frame, and the clamping assembly is also connected to the power output end of the travel drive assembly, the travel drive assembly is configured to drive the sliding frame to slide in a first direction or a second direction relative to the frame, and when the sliding frame is driven to slide in the first direction, the clamping assembly is driven to clamp the bottom plate, and when the sliding frame is driven to slide in the second direction, the clamping assembly is driven to release the bottom plate; the first direction is opposite to the second direction; The pressing and rolling mechanism is installed on the sliding frame, and the pressing and rolling mechanism is arranged on the sliding frame. The travel drive assembly drives the clamping assembly to rotate in a positive direction so as to press down and roll against the battery cells of the power battery module to be disassembled. The power battery module disassembly device according to claim 2, wherein the travel drive assembly is configured to drive the sliding frame to slide relative to the frame in the first direction when the clamping assembly is driven to rotate in the forward direction, and to drive the sliding frame to slide relative to the frame in the second direction when the clamping assembly is driven to rotate in the reverse direction; When the travel drive assembly drives the clamping assembly to rotate in the forward direction, the travel drive assembly drives the sliding frame to slide in the first direction, the clamping assembly clamps and rolls up the bottom plate, and at the same time, the pressing and rolling mechanism presses and rolls down to abut against the battery monomer; When the travel drive assembly drives the clamping assembly to rotate in the reverse direction, the travel drive assembly drives the sliding frame to slide in the second direction, the gripping mechanism clamps the second end of the base plate, and the clamping assembly releases the first end of the base plate. The power battery module disassembly device according to claim 2, wherein the travel drive assembly includes a motor, a gear and a rack, the rack is arranged on the top of the frame, the gear is meshed and transmitted on the rack, the first end of the gear is rotatably connected to the sliding frame, and the second end of the gear is connected to the power output end of the motor. The power battery module disassembly device according to claim 2, wherein the clamping assembly comprises a first clamping member, a second clamping member and a first fixing portion, the first end and the second end of the first clamping member are rotatably connected to the first fixing portion, the first clamping member is slidably connected to the sliding frame, the second clamping member is rotatably connected to the first fixing portion, and the second clamping member is slidably connected to the sliding frame; and The number of the first fixing parts is two, one of the two first fixing parts is connected to the power output end of the travel drive assembly, and the two first fixing parts are also connected to the sliding frame rotation end. The first and second ends of the first clamping member are both convexly provided with a first guide shaft, and the first and second ends of the second clamping member are both convexly provided with a second guide shaft. The first guide shaft at the first end of the first clamping member and the first guide shaft at the second end of the first clamping member are respectively slidably disposed in the first guide grooves of the two first fixing members, and the second guide shaft at the first end of the second clamping member and the second guide shaft at the second end of the second clamping member are respectively slidably disposed in the second guide grooves of the two first fixing members; The first clamping member is configured to approach the second clamping member when the travel drive component drives the first fixing portion connected to the travel drive component to rotate in the forward direction, so as to jointly clamp the base plate; the first clamping member is also configured to move away from the second clamping member when the travel drive component drives the first fixing portion connected to the travel drive component to rotate in the reverse direction, so as to jointly loosen the base plate. The power battery module disassembly device according to claim 5, wherein the first clamping member includes a first rotating clamping portion and two first guide sliders, the first end and the second end of the first rotating clamping portion are respectively connected to the two first guide sliders, the two first guide sliders are slidably connected in the sliding frame, and the two first guide sliders are respectively fixedly connected to the two first guide shafts. The power battery module disassembly device according to claim 5, wherein the second clamping member includes a second rotating clamping portion and two second guide sliders, the first end and the second end of the second rotating clamping portion are respectively connected to the two second guide sliders, the two second guide sliders are slidably connected in the sliding frame, and the two second guide sliders are respectively fixedly connected to the two second guide shafts. The power battery module disassembly device according to claim 5, wherein the first guide groove and the second guide groove are both arc-shaped. The power battery module disassembly device according to claim 1, wherein the gripping mechanism comprises a material removal driving member, two second fixing portions, a first material removal clamping member and a second material removal clamping member, wherein the material removal The material driving member is installed on the frame, the two second fixing parts are both rotatably connected to the frame, and one of the two second fixing parts is connected to the power output end of the material unloading driving member, the first end and the second end of the first material unloading clamping member are respectively slidably connected to the two second fixing parts, and the first end and the second end of the second material unloading clamping member are respectively slidably connected to the two second fixing parts; The first material removal clamping member is configured to move closer to the second material removal clamping member when the material removal driving member rotates in the forward direction to drive the first material removal clamping member so as to clamp the base plate; the first material removal clamping member is also configured to move away from the second material removal clamping member when the material removal driving member rotates in the reverse direction to drive the first material removal clamping member so as to release the base plate. A method for disassembling a power battery module, using the power battery module disassembling device according to any one of claims 1 to 9 to disassemble the bottom plate of the power battery module, comprising: Pre-processing the power battery module so that the first end of the bottom plate of the power battery module is tilted; The power battery module is loaded by the loading and unloading mechanism, wherein the raised first end of the bottom plate of the power battery module is arranged adjacent to the clamping assembly; Clamping the first side and the second side of the power battery module by the clamping devices on both sides; Placing the raised first end of the bottom plate of the power battery module at the clamping position of the clamping assembly; The travel drive assembly drives the clamping assembly to rotate in a positive direction and drives the sliding frame to slide in a first direction, and the pressing and rolling mechanism presses and rolls against the battery monomer until the sliding frame slides to a preset position relative to the frame, so that the clamping assembly clamps and rolls the bottom plate; Controlling the gripping mechanism to clamp and fix the second end of the base plate on the clamping assembly; The travel drive assembly drives the clamping assembly to rotate in the reverse direction and drives the sliding frame to slide in the second direction, so that the clamping assembly releases the bottom plate; Controlling the gripping mechanism to release the bottom plate; The disassembled power battery module is removed from the loading and unloading mechanism.