CN214488984U

CN214488984U - Maintenance tool

Info

Publication number: CN214488984U
Application number: CN202120051364.8U
Authority: CN
Inventors: 同建博; 李林昌; 黎仕荣
Original assignee: Dongguan Chuangming Battery Technology Co Ltd
Current assignee: Dongguan Chuangzhimei Technology Co ltd
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2021-10-26
Anticipated expiration: 2031-01-08

Abstract

The maintenance tool is used for disassembling the battery cores connected through the electrode connecting pieces in the battery pack, and comprises a clamping assembly used for clamping the battery pack, a disassembling assembly arranged opposite to the clamping assembly and a moving assembly; the disassembling component comprises a cutter arranged opposite to the electrode connecting piece and a cutter driver used for driving the cutter; a motion assembly connects at least one of the clamp assembly and the tool drive. The clamping assembly is used for clamping and fixing the battery pack, the moving assembly drives the cutter to move along a preset track, and the cutter driver drives the cutter to work, so that the electrode connecting piece welded and connected to the electrode can be accurately disassembled; the maintenance tool who adopts this embodiment to provide demolishs the electrode connecting piece, can not influence the charge-discharge function of electric core, and the shape and the size of electrode are all controllable moreover, and then can not influence the reuse of electric core.

Description

Maintenance tool

Technical Field

The application relates to the technical field of new energy batteries, in particular to a maintenance tool.

Background

In recent years, new energy technology is rapidly developed, and in practical application, the new energy technology cannot be supported by a battery pack. The existing new energy automobile industry usually adopts a battery pack with a plurality of lithium battery cells, and the cells in the battery pack are usually electrically and structurally connected in a welding mode through metal connecting pieces (such as aluminum strip-shaped connecting pieces).

In the production process of the existing battery pack, when the parameters of the battery pack are not in accordance with requirements due to factors such as poor manufacturing process or poor incoming materials, the replacement of the battery cell cannot be realized on the premise of not damaging the battery cell, so that the whole battery pack is often scrapped or degraded for use.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a repair tools, aims at solving the current battery package and can't change the technical problem of electric core under the prerequisite that does not harm electric core.

The maintenance tool is used for disassembling an electric core which is provided with an electrode and connected through an electrode connecting piece in a battery pack, and is characterized by comprising a clamping assembly used for clamping the battery pack, a disassembling assembly arranged opposite to the clamping assembly and a moving assembly; the disassembling assembly comprises a cutter and a cutter driver, wherein the cutter is arranged opposite to the electrode connecting piece, the cutter driver is used for driving the cutter, and the thickness of the cutter is greater than or equal to 1.5 mm; the motion assembly is connected with the clamping assembly and/or the motion assembly is connected with the tool driver.

In an embodiment of the present application, the tool driver employs a rotation driver, the tool employs a milling cutter, and the rotation driver can drive the milling cutter to rotate axially just opposite to the electrode connecting member.

In one embodiment of the application, the milling cutter is a ring groove milling cutter, the inner diameter of which is equal to the diameter of the electrode.

In an embodiment of this application, the repair tools still includes the laminating the guard plate that the outer wall of battery package set up, the guard plate set up in be connected with of electricity core one side of electrode connecting piece.

In an embodiment of this application, the guard plate is including laminating the first inoxidizing coating of the outer wall of battery package, and laminating the second inoxidizing coating that the one side of first inoxidizing coating back to the battery package set up, soft inoxidizing coating is adopted to first inoxidizing coating.

In one embodiment of the present application, the clamping assembly includes a first limiting plate, a second limiting plate having a predetermined included angle with the first limiting plate, a first clamping plate disposed opposite to the first limiting plate, a second clamping plate disposed opposite to the second limiting plate, and a base; the first limiting plate and the second limiting plate are fixedly connected with the base, the first clamping plate and the second clamping plate are movably connected with the base, the first clamping plate can be close to or far away from the first limiting plate, and the second clamping plate can be close to or far away from the second limiting plate.

In one embodiment of the application, the base is provided with a first track and a second track, the clamping assembly further comprises a first turntable connected with the first clamping plate, a second turntable connected with the second clamping plate, a first driver for driving and connecting the first turntable and the first track, and a second driver for driving and connecting the second turntable and the second track.

In one embodiment of the present application, a transmission ratio of the first turntable to the first track is greater than 1, and a transmission ratio of the second turntable to the second track is greater than 1.

In an embodiment of the application, the first limiting plate, the second limiting plate, the first clamping plate and the second clamping plate all adopt bakelite plates, and the base adopts a bakelite base.

In one embodiment of the present application, the motion assembly comprises a three-dimensional translational drive coupled to the un-mating assembly; alternatively, the motion assembly includes a lift drive coupled to the un-mating assembly and a horizontal drive coupled to the clamping assembly.

The implementation of a service tool provided by any embodiment of the application has at least the following beneficial effects:

according to the maintenance tool provided by the embodiments of the application, the battery pack is clamped and fixed by the clamping assembly, the cutter is driven by the moving assembly to move along a preset track, and the cutter driver drives the cutter to work, so that an electrode connecting piece welded and connected to an electrode can be accurately disassembled; the maintenance tool who adopts each embodiment of this application to provide demolishs the electrode connecting piece, can not influence the charge-discharge function of electric core, and the shape and the size of electrode are all controllable moreover, and then can not influence the reuse of electric core.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic illustration of a service tool provided by an embodiment of the present application;

FIG. 2 is an exploded view of a service tool provided by one embodiment of the present application.

Reference numerals referred to in the above figures are detailed below:

1-a battery pack; 11-electric core; 111-electrodes; 12-an electrode connection; 2-a clamping assembly; 21-a first limiting plate; 22-a second limiting plate; 23-a first clamping plate; 24-a second clamping plate; 25-a base; 26-a first carousel; 27-a second carousel; 3-disassembling the components; 31-a cutter; 32-a tool drive; 4-protective plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.

In order to explain the technical solutions of the present application, the following detailed descriptions are made with reference to specific drawings and examples.

Referring to fig. 1 and 2, an embodiment of the present application provides a maintenance tool for disassembling a battery cell 11 connected by an electrode connector 12 in a battery pack 1, the maintenance tool includes a clamping assembly 2 for clamping the battery pack 1, a disassembling assembly 3 disposed opposite to the clamping assembly 2, and a moving assembly (not shown in the drawings); the disassembling component 3 comprises a cutter 31 arranged opposite to the electrode connecting piece 12 and a cutter driver 32 used for driving the cutter 31, wherein the diameter of the cutter is larger than or equal to 1.5 mm; the motion assembly connects at least one of the clamp assembly 2 and the tool driver 32.

Referring to fig. 1 and fig. 2, the maintenance tool provided in this embodiment can maintain a battery pack 1 having a plurality of battery cells 11, each battery cell 11 in the battery pack 1 has two electrodes 111, the electrodes 111 of adjacent battery cells 11 are connected by an electrode connecting member 12, and the electrode connecting member 12 is welded to the electrodes 111. The repair tool provided by the embodiment can remove the connecting sheet of the electrode 111 without damaging the electrode 111, and specifically, the repair tool provided by the embodiment works as follows: the clamping assembly 2 can clamp and fix the battery pack 1, and align the electrode 111 of the battery cell 11 to be replaced in the battery pack 1 to the direction of the disassembling assembly 3; the moving component is connected with at least one of the clamping component 2 and the cutter driver 32 and can control and drive the mutual movement between the cutter driver 32 and the battery pack 1; the cutter driver 32 can drive the cutter 31 to work, and at the same time, the motion assembly controls the cutter head of the cutter 31 to pass through the spatial position of the electrode connecting piece 12, so that the safe removal of the electrode connecting piece 12 is finally realized on the premise of not damaging the battery cell 11.

The implementation of the maintenance tool provided by the embodiment has at least the following beneficial technical effects:

in the maintenance tool provided by the embodiment, the clamping assembly 2 clamps and fixes the battery pack 1, the moving assembly drives the cutter 31 to move along a preset track, and the cutter driver 32 drives the cutter 31 to work, so that the electrode connecting piece 12 welded and connected to the electrode 111 can be accurately disassembled; the maintenance tool provided by this embodiment is used to remove the electrode connecting member 12, the charging and discharging functions of the battery cell 11 are not affected, and the shape and size of the electrode 111 are controllable, so that the reuse of the battery cell 11 is not affected.

The maintenance tool provided by the embodiment can safely remove the electrode connecting piece 12 without affecting the integrity of the electrode 111 and the repeated use of the battery cells 11, and is particularly suitable for the situation that the parameters of the whole battery pack 1 are not satisfactory because the parameters of one or more battery cells 11 are not satisfactory. The battery cell 11 in the battery pack 1 can be safely replaced by safely removing the electrode connecting piece 12, so that the battery cell 1 can be maintained only by replacing the battery cell 11 with the parameter meeting the requirement, wherein the parameter of the battery cell 11 does not meet the requirement, and other battery cells 11 in the battery pack 1 do not need to be degraded for use or directly scrapped because the parameter of the battery pack 1 does not meet the requirement, so that the use efficiency of resources is improved; the disassembled battery cells 11 with the parameters not meeting the requirements can further form degraded batteries with the battery cells 11 with the parameters not meeting the requirements due to the complete structure of the battery cells, and the degraded batteries can be put into use by re-grading the battery cells 11, so that the use efficiency of resources is further improved.

In this embodiment, the motion assembly is connected to the clamp assembly 2, or the motion assembly is connected to the tool driver 32, or the motion assembly is connected to the clamp assembly 2 and the tool driver 32. The motion assembly only needs to control the mutual movement between the cutter 31 and the battery pack 1, and the fundamental meaning of the motion assembly is that the cutter 31 is controlled to pass through the spatial position of the electrode connecting piece 12, so that the electrode connecting piece 12 can be safely removed without affecting the integrity of the electrode 111 and the repeated use of the battery cell 11.

Referring to fig. 1 and 2, in one embodiment of the present application, the tool driver 32 is a rotary driver, and the tool 31 is a milling cutter, and the rotary driver can drive the milling cutter to rotate axially opposite to the electrode connecting member 12.

The rotary driver drives the milling cutter to rotate, and the moving assembly drives the cutter head of the milling cutter to move through the space where the electrode connecting piece 12 is located, so that the electrode connecting piece 12 can be safely removed. The milling cutter is provided with a plurality of cutter teeth, so that when the maintenance tool works, the cutter teeth of the milling cutter can sequentially and intermittently cut off the allowance of the electrode connecting piece 12, the function range is wide, and the electrode connecting piece 12 can be effectively and safely dismounted no matter the shape of the electrode connecting piece 12 and the position relation of the electrode connecting piece 12 and the electrode 111; in addition, the electrode connecting piece 12 is detached by adopting a milling cutter, so that the space processing precision is higher, the preset movable track is configured, and the space shape of the motor can be controlled, so that the battery cell 11 with parameters which do not meet the requirements can be adapted to various subsequent use scenes.

Referring to fig. 1 and 2, in one embodiment of the present application, the milling cutter is a ring slot milling cutter having an inner diameter equal to the diameter of the electrode 111.

The advantage of doing so lies in, carries out milling process operation through the ring channel milling cutter, can control the groove milling height of ring channel milling cutter more effectively, ensures that electric core 11 apron and electrode 111 are not punctured by the scratch, avoids demolising the electric core 11 that the process damage parameter is unsatisfactory.

As a specific scheme of this embodiment, the inner diameter of the ring-shaped slot milling cutter is equal to the diameter of the electrode 11, and the difference between the inner diameter of the ring-shaped slot milling cutter and the outer diameter of the ring-shaped slot milling cutter is greater than or equal to 3mm, so that the ring-shaped slot milling cutter can effectively mill the electrode connecting member 12, and at the same time, the ring-shaped slot milling cutter itself has sufficient structural strength, the stability of the milling process is improved, and the battery cell 11 obtained by milling has the electrode 111 with a good size.

Referring to fig. 1 and fig. 2, in an embodiment of the present application, the maintenance tool further includes a protection plate 4 attached to an outer wall of the battery pack 1, where the protection plate 4 is disposed on a side of the battery cell 11 to which the electrode connector 12 is connected.

Like this, when guard plate 4 was processed the hole by cutter 31, or when guard plate 4 was provided with the hole corresponding with processing position and orbit, the piece that cutter 31 produced when demolising electrode connecting piece 12 (when processing the hole on guard plate 4 with cutter 31) can fall in the one side of guard plate 4 back to battery package 1, and the sweeps is clear away to the mode of conveniently absorbing or sweeping through the dust catcher, prevents that the sweeps from falling into inside battery package 1, and then avoids the piece to influence the normal work of battery package 1 after the maintenance.

Referring to fig. 1 and 2, as a specific solution of this embodiment, the protection plate 4 is provided with a through hole 41 adapted to the position and shape of the electrode connector 12 to be removed, and the electrode connector 12 to be removed can extend into the through hole 41 to reduce the debris generated during the removing process.

In one embodiment of the present application, the protection plate 4 includes a first protection layer (not shown) attached to an outer wall of the battery pack 1, and a second protection layer (not shown) attached to a surface of the first protection layer opposite to the battery pack 1, wherein the first protection layer is a soft protection layer.

Thus, when the protection plate 4 is processed into a hole by the cutter 31, or the protection plate 4 is provided with a hole corresponding to the processing position and the track, the protection plate 4 is pressed on the battery pack 1, the electrode connecting piece 12 to be disassembled can extend into the through hole, and the fragments generated in the disassembling process are further prevented from falling into the battery pack 1; the piece that produces when cutter 31 demolishs electrode connecting piece 12 (and when cutter 31 processed the hole on guard plate 4) can fall on the one side of the back to first inoxidizing coating of second inoxidizing coating, and the sweeps is clear away to the mode of conveniently absorbing or sweeping through the dust catcher, prevents that the sweeps from falling into inside battery package 1, and then avoids the piece to influence the normal work of battery package 1 after the maintenance.

As a specific solution of this embodiment, the first protective layers are provided with first through holes adapted to the positions and shapes of the electrode connecting members 12 to be removed, the second protective layers are provided with second through holes adapted to the positions and shapes of the electrode connecting members 12 to be removed, and the electrode connecting members 12 to be removed can extend into the first through holes or extend into the first through holes and the second through holes, so as to reduce the debris generated in the removing process.

Referring to fig. 1 and fig. 2, in an embodiment of the present application, the clamping assembly 2 includes a first limiting plate 21, a second limiting plate 22 forming a predetermined included angle with the first limiting plate 21, a first clamping plate 23 disposed opposite to the first limiting plate 21, a second clamping plate 24 disposed opposite to the second limiting plate 22, and a base 25; the first limiting plate 21 and the second limiting plate 22 are fixedly connected with the base 25, the first clamping plate 23 and the second clamping plate 24 are movably connected with the base 25, the first clamping plate 23 can be close to or far away from the first limiting plate 21, and the second clamping plate 24 can be close to or far away from the second limiting plate 22.

Referring to fig. 1 and 2, in the present embodiment, the preset included angle may be 90 °. It should be understood that the size of the preset included angle should be adapted to the external shape of the battery pack 1, so that the first limiting plate 21, the second limiting plate 22, the first clamping plate 23 and the second clamping plate 24 can clamp and fix the battery pack 1 together.

In one embodiment of the present application, the base 25 is provided with a first track and a second track, and the clamping assembly 2 further comprises a first turntable 26 connected to the first clamping plate 23, a second turntable 27 connected to the second clamping plate 24, a first actuator (not shown) for driving the first turntable 26 and the first track, and a second actuator (not shown) for driving the second turntable 27 and the second track.

In one embodiment of the present application, the transmission ratio of the first turntable 26 to the first track is greater than 1, and the transmission ratio of the second turntable 27 to the second track is greater than 1.

Therefore, the control precision of the first turntable 26 on the position of the first clamping plate 23 and the control precision of the second turntable 27 on the position of the second clamping plate 24 can be improved, the clamping force of the first clamping plate 23 and the first limiting part on the battery pack 1 is improved, the clamping force of the second clamping plate 24 and the second limiting part on the battery pack 1 is improved, and the position and the posture of the battery pack 1 can be kept stable in the milling process.

In one embodiment of the present application, the first limiting plate 21, the second limiting plate 22, the first clamping plate 23 and the second clamping plate 24 are all made of bakelite plates, and the base 25 is made of bakelite bases 25.

Bakelite, namely PP plastic (Phenolic plastic), the first limiting plate 21, the second limiting plate 22, the first clamping plate 23 and the second clamping plate 24 are all made of bakelite plates, the base 25 is made of a bakelite base 25, so that the bakelite plate has better mechanical strength and insulation property, has the advantages of heat resistance and corrosion resistance, and is very suitable for milling and dismantling parts of the battery pack 1.

In one embodiment of the present application, the kinematic assembly comprises a three-dimensional translation actuator (not shown in the figures) connected to the un-coupling assembly 3; alternatively, the moving assembly comprises a lifting drive (not shown) connected to the un-disassembling assembly 3, and a horizontal drive (not shown) connected to the clamping assembly 2.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A maintenance tool is used for disassembling an electric core which is provided with an electrode and is connected with the electric core through an electrode connecting piece, and is characterized by comprising a clamping assembly used for clamping a battery pack, a disassembling assembly arranged opposite to the clamping assembly and a moving assembly; the disassembling assembly comprises a cutter and a cutter driver, wherein the cutter is arranged opposite to the electrode connecting piece, the cutter driver is used for driving the cutter, and the thickness of the cutter is greater than or equal to 1.5 mm; the motion assembly is connected with the clamping assembly and/or the motion assembly is connected with the tool driver.

2. The service tool of claim 1 wherein said cutter drive is a rotary drive and said cutter is a mill, said rotary drive capable of driving said mill to rotate axially against said electrode connecting member.

3. The service tool of claim 2 wherein said mill is a ring slot mill having an inside diameter equal to said diameter.

4. The service tool of claim 1, further comprising a protective plate disposed against an outer wall of the battery pack, the protective plate disposed on a side of the electrical core to which the electrode connector is attached.

5. The service tool of claim 4, wherein the protection plate comprises a first protection layer attached to an outer wall of the battery pack and a second protection layer attached to a surface of the first protection layer opposite to the battery pack, and the first protection layer is a soft protection layer.

6. The service tool of any one of claims 1-5, wherein the clamping assembly comprises a first limiting plate, a second limiting plate at a predetermined included angle with the first limiting plate, a first clamping plate disposed opposite the first limiting plate, a second clamping plate disposed opposite the second limiting plate, and a base; the first limiting plate and the second limiting plate are fixedly connected with the base, the first clamping plate and the second clamping plate are movably connected with the base, the first clamping plate can be close to or far away from the first limiting plate, and the second clamping plate can be close to or far away from the second limiting plate.

7. The service tool of claim 6 wherein the base is provided with a first track and a second track, the clamping assembly further comprising a first turntable coupled to the first clamping plate, a second turntable coupled to the second clamping plate, a first actuator for drivingly coupling the first turntable and the first track, and a second actuator for drivingly coupling the second turntable and the second track.

8. The service tool of claim 7 wherein a gear ratio of the first turntable to the first track is greater than 1 and a gear ratio of the second turntable to the second track is greater than 1.

9. The service tool of claim 6, wherein the first limiting plate, the second limiting plate, the first clamping plate and the second clamping plate are all bakelite plates, and the base is a bakelite base.

10. The service tool of any one of claims 1-5, wherein the motion assembly comprises a three-dimensional translational drive coupled to the un-mating assembly; alternatively, the motion assembly includes a lift drive coupled to the un-mating assembly and a horizontal drive coupled to the clamping assembly.