Clamping mechanism and battery cell disassembling device

Abstract

The utility model relates to a clamping mechanism and a battery cell disassembling device, the clamping mechanism comprises a first clamping jaw and a second clamping jaw, the first clamping jaw and the second clamping jaw are arranged in a first direction at an interval, and the first clamping jaw and the second clamping jaw can synchronously rotate around the same rotation axis intersecting with the first direction. Wherein the first clamping jaw and the second clamping jaw can alternately clamp and turn over the same battery cell during synchronous rotation. According to the technical scheme, in the process that the first clamping jaw and the second clamping jaw synchronously rotate and alternately clamp the battery cell, the diaphragm wound on the battery cell is gradually separated circle by circle, then the pole piece in the battery cell is exposed, automatic disassembly of the battery cell is facilitated, the pole piece in the battery cell is conveniently recycled, and the disassembly efficiency of the battery cell is improved.

Description

Technical Field

[0001] The present application relates to the technical field of battery recycling equipment, and in particular to a clamping mechanism and a battery cell disassembly device. Background Art

[0002] Various defective cells will be produced during the production of lithium-ion batteries. The defective cells contain higher-priced positive electrode plates. If they are scrapped, it will cause a great waste, so the defective cells need to be disassembled and the positive electrode plates inside them need to be recycled.

[0003] There are two main types of battery cells: laminated and wound. Taking laminated battery cells as an example, the battery cell is composed of positive and negative electrode sheets stacked alternately, with a separator between adjacent positive and negative electrode sheets. When the stacked positive / negative electrode sheets reach the standard number of layers, the separator is used to wrap the stacked battery cells several times, and then the separator is cut off, and the tail of the separator is fixed with tape to form a complete battery cell.

[0004] When recycling defective battery cells, the diaphragm wrapped around the battery cell needs to be rotated and peeled off to expose the positive / negative pole pieces, and then the pole pieces are disassembled. Currently, this work is mainly done manually, and the disassembly efficiency is low. Utility Model Content

[0005] Based on this, it is necessary to provide a clamping mechanism and a battery cell disassembly device to address the problem of low battery cell disassembly efficiency.

[0006] In a first aspect, the present application provides a clamping mechanism, the clamping mechanism comprising a first clamping jaw and a second clamping jaw, the first clamping jaw and the second clamping jaw are arranged at intervals in a first direction, and the two can rotate synchronously around the same rotation axis intersecting the first direction;

[0007] Wherein, the first clamping jaw and the second clamping jaw can alternately clamp and flip the same battery core when rotating synchronously.

[0008] In some embodiments, the first clamping jaw and the second clamping jaw can switch between respective clamping states and releasing states every half a turn.

[0009] In some embodiments, the first jaw and the second jaw rotate about the same rotation axis located therebetween.

[0010] In some embodiments, the first jaw and the second jaw rotate along a same rotational path disposed about the rotation axis.

[0011] In some embodiments, the first clamps include two, the second clamps include two, the two first clamps are arranged opposite to each other and spaced apart in a direction parallel to the rotation axis, and are used to synchronously clamp the same battery cell; the two second clamps are arranged opposite to each other and spaced apart in another direction parallel to the rotation axis, and are used to synchronously clamp the same battery cell;

[0012] All of the first clamping jaws and all of the second clamping jaws rotate synchronously around the rotation axis.

[0013] In some embodiments, the clamping mechanism includes two groups of drive assemblies, which are arranged at intervals on the rotation axis; each group of drive assemblies is connected to the first clamping jaw and the second clamping jaw, and can drive the connected first clamping jaw and the second clamping jaw to rotate synchronously around the rotation axis;

[0014] The first clamping jaw and the second clamping jaw connected to the same driving assembly are configured to clamp the battery cell at one side of the battery cell.

[0015] In some embodiments, the clamping mechanism also includes a driving assembly, which includes a power source and a rotating shaft. The first jaw and the second jaw are both connected to the rotating shaft. The power source is used to drive the rotating shaft to rotate, so as to drive the first jaw and the second jaw to rotate synchronously around the rotation axis of the rotating shaft.

[0016] In some embodiments, the clamping mechanism includes a first translation driving member connected to the first clamping jaw and configured to drive the first clamping jaw to reciprocate in a direction parallel to the rotation axis;

[0017] The clamping mechanism includes a second translation driving member, which is connected to the second clamping jaw and is used to drive the second clamping jaw to reciprocate in a direction parallel to the rotation axis.

[0018] In a second aspect, the present application provides a battery cell disassembly device, comprising the clamping mechanism described in any of the above embodiments, wherein the first clamping jaw and the second clamping jaw of the clamping mechanism can alternately clamp and flip the same battery cell during synchronous rotation to remove the diaphragm wrapped around the battery cell.

[0019] In some embodiments, the battery cell disassembly device further comprises a diaphragm clamping member for clamping the diaphragm, and the diaphragm clamping member is movably arranged relative to the clamping mechanism.

[0020] In the above-mentioned clamping mechanism and battery cell disassembling device, in actual application, the first clamping jaw and the second clamping jaw of the clamping mechanism can alternately clamp the same battery cell, and the first clamping jaw and the second clamping jaw clamp the battery cell at different ends in the first direction. When the first clamping jaw and the second clamping jaw rotate synchronously around the above-mentioned rotation axis, one of the first clamping jaw and the second clamping jaw clamps the first end of the battery cell in the first direction, and drives the battery cell to flip around the rotation axis, so that the tail roll diaphragm wrapped around the second end of the battery cell in the first direction leaves the battery cell under the action of gravity or external pulling; then, the other of the first clamping jaw and the second clamping jaw replaces the second end of the battery cell and drives the battery cell to flip around the rotation axis, so that the tail roll diaphragm wrapped around the first end of the battery cell leaves the battery cell.

[0021] In this way, during the process of the first jaw and the second jaw rotating synchronously and alternately clamping the battery cell, the diaphragm wrapped around the battery cell is gradually separated circle by circle, thereby exposing the electrode sheets inside the battery cell, which helps to realize the automated disassembly of the battery cell, facilitates the recovery of the electrode sheets inside the battery cell, and improves the efficiency of battery cell disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of a battery cell according to some embodiments of the present application.

[0024] Figure 2 Schematic top view of the clamping mechanism of some embodiments of the present application.

[0025] Figure 3 for Figure 2 A front view schematic diagram of the clamping mechanism shown.

[0026] Figure 4 Schematic diagram of the structure of a battery cell disassembly device according to some embodiments of the present application.

[0027] The reference numerals in the specific implementation manner are as follows:

[0028] 100. Battery cell disassembling device; 10. Clamping mechanism; F. Rotation axis; X. First direction; Y. Second direction; 11. First clamping jaw; 12. Second clamping jaw; 13. Driving assembly; 13a. Power source; a1. Rotating motor; a2. Synchronous belt; 13b. Rotation axis; 14. Base; 15. First translation driving member; 16. Second translation driving member; 17. Intermediate connecting plate; 20. Diaphragm clamping member; G. Battery cell; G1. Diaphragm; G2. Positive electrode sheet; G3. Negative electrode sheet. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0030] In the description of the present application, it should be understood that terms such as “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships, if any, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] In addition, if present, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In this application, unless otherwise clearly specified and limited, if any, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] In the present application, if it appears, unless otherwise clearly specified and limited, a first feature “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature “above”, “above” and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature “below”, “below” and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] It should be noted that, if present, when an element is referred to as being "fixed to" or "disposed on" 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 at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0035] The embodiment of the present application proposes a clamping mechanism to solve the problem that currently defective batteries need to be manually disassembled, resulting in low efficiency of battery disassembly. The clamping mechanism can be applied to the disassembly of batteries, which can be wound batteries or laminated batteries.

[0036] Figure 1 The structure of a laminated battery cell is shown in Figure 1. Figure 1 In one example, the battery cell G includes a diaphragm G1, a positive electrode sheet G2 and a negative electrode sheet G3. A portion of the diaphragm G1 is bent in a Z shape to form a multi-layer diaphragm G1 layer. A positive electrode sheet G2 or a negative electrode sheet G3 is arranged between two adjacent diaphragm G1 layers. The positive electrode sheets G2 and the negative electrode sheets G3 are alternately stacked between each adjacent diaphragm G1 layer along the thickness direction of the diaphragm G1 layer to obtain a stacked structure. Another portion of the diaphragm G1 (called a tail roll diaphragm) is wound and wrapped around the stacked structure for multiple turns to obtain a stacked battery cell.

[0037] Understandably, after the wound cell is stacked and wound by the diaphragm strip, the positive electrode strip and the negative electrode strip to form a winding structure, the excess diaphragm strip (called the tail roll diaphragm G1) is wound around and wrapped around the winding structure for multiple turns to obtain a wound cell. Whether it is a wound cell or a laminated cell, most of the outside is wrapped with a few turns of the tail roll diaphragm. When disassembling the cell G, it is first necessary to separate the tail roll diaphragm to expose the positive electrode to facilitate the recovery of the positive electrode material. The clamping mechanism 10 provided in the embodiment of the present application can be, but is not limited to, used for the separation of the tail roll diaphragm.

[0038] The clamping mechanism 10 of the embodiment of the present application is described in detail below.

[0039] Figure 2 Schematic top view of the clamping mechanism 10 according to some embodiments of the present application. Figure 3 for Figure 2 A schematic front view of the clamping mechanism 10 is shown.

[0040] According to some embodiments of this application, please refer to Figure 2 and Figure 3 The clamping mechanism 10 provided in the embodiment of the present application includes a first clamping jaw 11 and a second clamping jaw 12, which are arranged at intervals in a first direction X, and can rotate synchronously around the same rotation axis F intersecting the first direction X. The first clamping jaw 11 and the second clamping jaw 12 can alternately clamp and flip the same battery cell G when rotating synchronously.

[0041] The first clamp 11 and the second clamp 12 are structures that can be switched between the clamping and loosening states. When in the clamping state, the first clamp 11 and the second clamp 12 can clamp the battery cell G, and when in the loosening state, the first clamp 11 and the second clamp 12 both release the battery cell G. The specific structure of the first clamp 11 and the second clamp 12 can be conventionally set by those skilled in the art. For example, the first clamp 11 and the second clamp 12 each include two pressure plates and a clamping motor, and the clamping motor drives the two pressure plates to move relative to each other in the spacing direction, and can clamp the battery cell G located between the two pressure plates or release the battery cell G located between the two pressure plates during the relative movement.

[0042] In practical applications, the first direction X usually corresponds to the width direction of the battery cell G, and the tail roll separator G1 of the battery cell G is wound on the battery cell G along the width direction of the battery cell G. The first clamping jaw 11 and the second clamping jaw 12 are used to clamp the same battery cell G, and the two are arranged at intervals in the first direction X. The first clamping jaw 11 and the second clamping jaw 12 can clamp the same battery cell G at different ends in the first direction X.

[0043] The first clamp 11 and the second clamp 12 can be arranged on opposite sides of the battery cell G in the first direction X, or on opposite sides of the battery cell G in the second direction Y perpendicular to the first direction X, or on the same side of the battery cell G in the first direction X, as long as the first clamp 11 and the second clamp 12 can respectively clamp the different ends of the battery cell G in the first direction X. Figure 2 In the illustrated embodiment, part of the first clamp 11 and part of the second clamp 12 are arranged on the same side of the battery cell G in the first direction X, and part of the first clamp 11 and part of the second clamp 12 are arranged on opposite sides of the battery cell G in the second direction Y.

[0044] The first clamping jaw 11 and the second clamping jaw 12 rotate synchronously around the same rotation axis F. The rotation axis F intersects the first direction X. Usually, the rotation axis F is perpendicular to the first direction X and parallel to the length direction of the battery cell G. It can be understood that, in combination with Figure 1 It is understood that the thickness direction of the battery cell G corresponds to the stacking direction of the positive electrode sheet G2 and the negative electrode sheet G3, and the length direction and width direction of the battery cell G are approximately perpendicular to its thickness direction.

[0045] It can be understood that on the plane perpendicular to the rotation axis F, the projection of the first jaw 11 and the projection of the second jaw 12 are collinear with the projection of the rotation axis F. In this way, when the clamping mechanism 10 drives the battery cell G to flip around the rotation axis F, the synchronously rotating first jaw 11 and the second jaw 12 can alternately clamp the same battery cell G.

[0046] In some cases, on a plane perpendicular to the rotation axis F, the projection of the rotation axis F can be located between the projection of the first jaw 11 and the projection of the second jaw 12, so that the first jaw 11 and the second jaw 12 are arranged on both sides of the rotation axis F, and the turning radius of the first jaw 11 and the second jaw 12 are smaller, and the space range required for rotation is smaller.

[0047] In other cases, on a plane perpendicular to the rotation axis F, the projection of the rotation axis F may also be located on the same side as the projection of the first clamping jaw 11 and the projection of the second clamping jaw 12. In this way, when the first clamping jaw 11 and the second clamping jaw 12 rotate synchronously around the rotation axis F, the flipping of the battery cell G may also be achieved.

[0048] Since the first clamping jaw 11 and the second clamping jaw 12 rotate synchronously, during the rotation process, the relative positional relationship between the first clamping jaw 11, the second clamping jaw 12 and the clamped battery core G remains substantially unchanged.

[0049] In practical application, the first clamping jaw 11 and the second clamping jaw 12 of the clamping mechanism 10 can alternately clamp the same battery cell G, and the first clamping jaw 11 and the second clamping jaw 12 clamp the battery cell G at different ends in the first direction X. When the first clamping jaw 11 and the second clamping jaw 12 rotate synchronously around the above-mentioned rotation axis F, one of the first clamping jaw 11 and the second clamping jaw 12 clamps the first end of the battery cell G in the first direction X, and drives the battery cell G to flip around the rotation axis F, so that the tail roll diaphragm G1 wrapped around the second end of the battery cell G in the first direction X leaves the battery cell G under the action of gravity or external pulling; then, the other of the first clamping jaw 11 and the second clamping jaw 12 replaces the second end of the battery cell G and drives the battery cell G to flip around the rotation axis F, so that the tail roll diaphragm G1 wrapped around the first end of the battery cell G leaves the battery cell G.

[0050] In this way, during the process of the first clamp 11 and the second clamp 12 rotating synchronously and alternately clamping the battery cell G, the diaphragm G1 wrapped around the battery cell G is gradually separated circle by circle, thereby exposing the electrode sheets inside the battery cell G, which helps to realize the automated disassembly of the battery cell G, facilitates the recovery of the electrode sheets inside the battery cell G, and improves the disassembly efficiency of the battery cell G.

[0051] In some embodiments, the first clamping jaw 11 and the second clamping jaw 12 can switch between the respective clamping state and the releasing state every half a circle.

[0052] The clamping state refers to the state in which the clamping jaws can clamp the battery cell G, and the releasing state refers to the state in which the clamping jaws release the battery cell G. The first clamping jaw 11 and the second clamping jaw 12 switch between their two states every 180 degrees rotation to alternately clamp the same battery cell G.

[0053] In practical application, the first clamp 11 and the second clamp 12 are respectively used to clamp different ends of the battery cell G in the first direction X. When the first clamp 11 and the second clamp 12 rotate 180 degrees synchronously, the two sides with larger areas on the battery cell G can be turned over once, so that the diaphragm G1 wrapped around one of the sides can be separated from the battery cell G under its own weight. At this time, the separation efficiency of the diaphragm G1 is relatively high.

[0054] Of course, in other embodiments, the first clamping jaw 11 and the second clamping jaw 12 may also alternately clamp the battery cell G at other rotation angles, such as 90 degrees (1 / 4 turn), 360 degrees (a full turn), etc.

[0055] In some embodiments, the first clamping jaw 11 and the second clamping jaw 12 rotate around the same rotation axis F located therebetween. That is, on a plane perpendicular to the rotation axis F, the projection of the first clamping jaw 11 and the projection of the second clamping jaw 12 are arranged on both sides of a straight line passing through the projection of the rotation axis F. In this way, the space occupied by the rotation of the first clamping jaw 11 and the second clamping jaw 12 is small, which can make the structure of the clamping mechanism 10 more compact.

[0056] In some embodiments, the first clamp 11 and the second clamp 12 rotate along the same rotation path set around the rotation axis F. That is, the rotation radius of the first clamp 11 and the second clamp 12 is the same. In practical applications, the positions of the battery cell G clamped by the first clamp 11 and the second clamp 12 are symmetrically arranged relative to the middle section of the battery cell G perpendicular to the first direction X, so that the length of the diaphragm G1 separated by the first clamp 11 and the second clamp 12 each time is alternately clamped is basically equal, which helps to realize the automatic winding and recovery of the separated diaphragm G1. At the same time, the two clamps rotate along the same rotation path, which can make the structure of the clamping mechanism 10 more compact.

[0057] Of course, in other embodiments, the first clamping jaw 11 and the second clamping jaw 12 may also rotate along different rotation paths.

[0058] In some embodiments, reference Figure 2 The first clamping jaws 11 include two, and the second clamping jaws 12 include two. The two first clamping jaws 11 are arranged relatively and spaced in a direction parallel to the rotation axis F, and are used to synchronously clamp the same battery cell G. The two second clamping jaws 12 are arranged relatively and spaced in another direction parallel to the rotation axis F, and are used to synchronously clamp the same battery cell G. All the first clamping jaws 11 and all the second clamping jaws 12 rotate synchronously around the rotation axis F.

[0059] The two first clamping jaws 11 that are opposite to each other and spaced apart are regarded as a clamping jaw group, and the two second clamping jaws 12 that are opposite to each other and spaced apart are regarded as a clamping jaw group. In practical application, the two clamping jaws in each clamping jaw group are synchronously clamped at different ends of the battery cell G in the second direction Y (the second direction Y is parallel to the rotation axis F), and the two clamping jaw groups are alternately clamped at different ends of the battery cell G in the first direction X.

[0060] In this way, when the clamping mechanism 10 flips the battery cell G, the battery cell G is clamped at different ends in the second direction Y, the force on the battery cell G is more uniform, and the flipping process of the battery cell G is more stable.

[0061] In some embodiments, reference Figure 2 and Figure 3 The clamping mechanism 10 includes two sets of driving components 13, and the two sets of driving components 13 are arranged at intervals on the rotation axis F. Each set of driving components 13 is connected to a first clamping jaw 11 and a second clamping jaw 12, and can drive the connected first clamping jaw 11 and the second clamping jaw 12 to rotate synchronously around the above-mentioned rotation axis F. The first clamping jaw 11 and the second clamping jaw 12 connected to the same driving component 13 are configured to clamp the battery cell G on the same side of the direction of the rotation axis F.

[0062] Each set of driving components 13 is connected to the first clamping jaw 11 and the second clamping jaw 12 in a transmission manner, and can drive the connected first clamping jaw 11 and the second clamping jaw 12 to rotate synchronously around the above-mentioned rotation axis F. In this way, by driving two clamping jaws to rotate synchronously at the same time through one driving component 13, the number of driving structures can be reduced, the structure of the clamping mechanism 10 can be simplified, and the clamping mechanism 10 can also be made more compact.

[0063] Moreover, the first clamp 11 and the second clamp 12 driven by the same driving component 13 are arranged on the same side of the battery cell G, and the driving component 13 can be arranged only on one side of the battery cell G, which helps to reduce the space occupied by the driving component 13 and makes the clamping mechanism 10 more compact.

[0064] In other embodiments, all the clamping jaws can be driven to rotate synchronously via the same driving assembly 13 .

[0065] In some embodiments, reference Figure 3 The clamping mechanism 10 includes a driving assembly 13, the driving assembly 13 includes a power source 13a and a rotating shaft 13b, the first jaw 11 and the second jaw 12 are both connected to the rotating shaft 13b, the power source 13a is used to drive the rotating shaft 13b to rotate, so as to drive the first jaw 11 and the second jaw 12 to rotate synchronously around the rotating axis F of the rotating shaft 13b.

[0066] That is, the first clamping jaw 11 and the second clamping jaw 12 rotate synchronously around the rotation axis F of the rotation shaft 13b. In some examples, the clamping mechanism 10 further includes a seat 14, the rotation shaft 13b is rotatably disposed on the seat 14, and the power source 13a is disposed on the seat 14 and is in transmission connection with the rotation shaft 13b. In some specific examples, such as Figure 3 As shown, the power source 13a includes a rotating motor a1 and a synchronous belt a2. The rotating motor a1 is connected to the rotating shaft 13b through the synchronous belt a2 to drive the rotating shaft 13b to rotate.

[0067] At this time, the driving assembly 13 has a simple structure and is easy to implement.

[0068] In some embodiments, reference Figure 3 The clamping mechanism 10 includes a first translation driving member 15, which is connected to the first clamping jaw 11 and is used to drive the first clamping jaw 11 to reciprocate along a direction parallel to the rotation axis F.

[0069] The first translation driving member 15 can be, but is not limited to, a telescopic cylinder. Preferably, the first translation driving member 15 and the first clamping jaw 11 are both connected to the rotating shaft 13b through the intermediate connecting plate 17. When the rotating shaft 13b rotates, the first translation driving member 15 and the first clamping jaw 11 rotate synchronously. The first translation driving member 15 is connected to the first clamping jaw 11 and can drive the first clamping jaw 11 to move in a direction parallel to the rotation axis F.

[0070] In actual application, when the first clamping jaw 11 is required to clamp the battery cell G, the first translation driving member 15 drives the first clamping jaw 11 to move toward the battery cell G, so that the battery cell G is inserted into the clamping space of the first clamping jaw 11. The first clamping jaw 11 can reduce the clamping space when it is moved into place or during the movement, and clamp the battery cell G. When the first clamping jaw 11 is required to release the battery cell G, the first translation driving member 15 drives the first clamping jaw 11 to move in the opposite direction to leave the battery cell G, and the first clamping jaw 11 releases the battery cell G at the same time.

[0071] In this way, when the first clamping jaw 11 releases the battery core G, the first clamping jaw 11 avoids the battery core G and does not interfere with the rotation of the battery core G.

[0072] In some embodiments, reference Figure 3The clamping mechanism 10 includes a second translation driving member 16, which is connected to the second clamping jaw 12 and is used to drive the second clamping jaw 12 to reciprocate along a direction parallel to the rotation axis F.

[0073] The second translation drive member 16 can be, but is not limited to, a telescopic cylinder. The second translation drive member 16 and the second clamping jaw 12 can be connected to the rotating shaft 13b through the intermediate connecting plate 17. When the rotating shaft 13b rotates, the second translation drive member 16 and the second clamping jaw 12 rotate synchronously. The first translation drive member 15 is connected to the second clamping jaw 12 and can drive the second clamping jaw 12 to move in a direction parallel to the rotation axis F.

[0074] In actual application, when the second clamping jaw 12 is required to clamp the battery cell G, the second translation driving member 16 drives the second clamping jaw 12 to move toward the battery cell G, so that the battery cell G is inserted into the clamping space of the second clamping jaw 12. The second clamping jaw 12 can reduce the clamping space when moving into place or during the movement, and clamp the battery cell G. When the second clamping jaw 12 is required to release the battery cell G, the second translation driving member 16 drives the second clamping jaw 12 to move in the opposite direction to leave the battery cell G, and the second clamping jaw 12 releases the battery cell G at the same time.

[0075] In this way, when the second clamping jaw 12 releases the battery core G, the second clamping jaw 12 avoids the battery core G and does not interfere with the rotation of the battery core G.

[0076] In a specific embodiment of the present application, Figure 2 and Figure 3 As shown, the clamping mechanism 10 includes two first clamping jaws 11 and two second clamping jaws 12 that rotate synchronously around the same rotation axis F. The two first clamping jaws 11 are arranged oppositely in a direction parallel to the rotation axis F, and the two second clamping jaws 12 are arranged oppositely in a direction parallel to the rotation axis F. The two first clamping jaws 11 as a group can be synchronously clamped at one end of the battery cell G, and the two second clamping jaws 12 as a group can be synchronously clamped at the other end of the battery cell G, and the first clamping jaws 11 and the second clamping jaws 12 alternately clamp the battery cell G. Each first clamping jaw 11 can move in a direction parallel to the rotation axis F under the drive of the first translation drive member 15, and each second clamping jaw 12 can move in a direction parallel to the rotation axis F under the drive of the second translation drive member 16.

[0077] In actual application, the working process of the clamping mechanism 10 is roughly as follows: the first translation drive member 15 drives the two first clamps 11 to extend and clamp one end of the battery cell G, and the two first clamps 11 rotate and flip the battery cell G 180 degrees; then, the first translation drive member 15 drives the two first clamps 11 to retract and the first clamps 11 release the battery cell G, and at the same time, the second translation drive member 16 drives the two second clamps 12 to extend and clamp the other end of the battery cell G, and the two second clamps 12 rotate and flip the battery cell G 180 degrees; then, the second translation drive member 16 drives the two second clamps 12 to retract and the second clamps 12 release the battery cell G, and at the same time, the first translation drive member 15 drives the two first clamps 11 to extend and clamp the battery cell G, and so on and so forth until the diaphragm G1 wrapped around the battery cell G is gradually separated.

[0078] Figure 4 Schematic diagram of a battery cell disassembly device 100 according to some embodiments of the present application.

[0079] In addition, refer to Figure 4 The present application also provides a battery cell disassembly device 100, comprising the above-mentioned clamping mechanism 10. The first clamping jaw 11 and the second clamping jaw 12 of the clamping mechanism 10 can alternately clamp and flip the same battery cell G during synchronous rotation to detach the diaphragm G1 wound around the battery cell G.

[0080] Specifically in some embodiments, continue to refer to Figure 4 The cell disassembling device 100 further includes a diaphragm clamp 20 for clamping the diaphragm G1, and the diaphragm clamp 20 is movably arranged relative to the clamping mechanism 10. Specifically, when the first clamp 11 and the second clamp 12 rotate synchronously, the diaphragm clamp 20 moves in a direction away from the clamping mechanism 10 to pull out the diaphragm G1 separated by the clamping mechanism 10, which is conducive to the smooth separation of the diaphragm G1.

[0081] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A clamping mechanism (10), characterized in that: The clamping mechanism (10) comprises a first clamping jaw (11) and a second clamping jaw (12), wherein the first clamping jaw (11) and the second clamping jaw (12) are arranged at intervals in a first direction (X), and the two can rotate synchronously around a same rotation axis (F) intersecting the first direction (X); The first clamp (11) and the second clamp (12) are capable of alternately clamping and flipping the same battery core (G) while rotating synchronously.

2. The clamping mechanism (10) according to claim 1, characterized in that: The first clamping jaw (11) and the second clamping jaw (12) can switch between their respective clamping states and releasing states every half turn.

3. The clamping mechanism (10) according to claim 1, characterized in that: The first clamping jaw (11) and the second clamping jaw (12) rotate around the same rotation axis (F) located therebetween.

4. The clamping mechanism (10) according to claim 3, characterized in that: The first clamping jaw (11) and the second clamping jaw (12) rotate along the same rotation path arranged around the rotation axis (F).

5. The clamping mechanism (10) according to claim 1, characterized in that: The first clamping jaws (11) include two, and the second clamping jaws (12) include two, the two first clamping jaws (11) are arranged opposite to each other and at intervals in a direction parallel to the rotation axis (F), and are used to synchronously clamp the same battery cell (G); the two second clamping jaws (12) are arranged opposite to each other and at intervals in another direction parallel to the rotation axis (F), and are used to synchronously clamp the same battery cell (G); All of the first clamping jaws (11) and all of the second clamping jaws (12) rotate synchronously around the rotation axis (F).

6. The clamping mechanism (10) according to claim 5, characterized in that: The clamping mechanism (10) comprises two groups of drive assemblies (13), and the two groups of drive assemblies (13) are arranged at intervals on the rotation axis (F); each group of the drive assemblies (13) is connected to the first clamping jaw (11) and the second clamping jaw (12), and can drive the connected first clamping jaw (11) and the second clamping jaw (12) to rotate synchronously around the rotation axis (F); The first clamping jaw (11) and the second clamping jaw (12) connected to the same driving assembly (13) are configured to clamp the battery core (G) at one side of the battery core.

7. The clamping mechanism (10) according to any one of claims 1 to 4, characterized in that: The clamping mechanism (10) further comprises a driving assembly (13), wherein the driving assembly (13) comprises a power source (13a) and a rotating shaft (13b), wherein the first clamping jaw (11) and the second clamping jaw (12) are both connected to the rotating shaft (13b), and the power source (13a) is used to drive the rotating shaft (13b) to rotate, so as to drive the first clamping jaw (11) and the second clamping jaw (12) to rotate synchronously around a rotating axis (F) of the rotating shaft (13b).

8. The clamping mechanism (10) according to any one of claims 1 to 4, characterized in that: The clamping mechanism (10) comprises a first translation driving member (15), the first translation driving member (15) being connected to the first clamping jaw (11) and being used for driving the first clamping jaw (11) to reciprocate in a direction parallel to the rotation axis (F); The clamping mechanism (10) comprises a second translation driving member (16), wherein the second translation driving member (16) is connected to the second clamping jaw (12) and is used to drive the second clamping jaw (12) to reciprocate in a direction parallel to the rotation axis (F).

9. A battery cell disassembly device (100), characterized in that: include: According to the clamping mechanism (10) as described in any one of claims 1 to 8, the first clamping jaw (11) and the second clamping jaw (12) of the clamping mechanism (10) are capable of alternately clamping and flipping the same battery cell (G) during synchronous rotation to detach the diaphragm (G1) wound around the battery cell (G).

10. The battery cell disassembling device (100) according to claim 9, characterized in that: The battery core disassembling device (100) further comprises a diaphragm clamping member (20) for clamping the diaphragm (G1), and the diaphragm clamping member (20) is movably arranged relative to the clamping mechanism (10).

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