Tray, transfer device and test apparatus

Abstract

A tray, a transfer device and a test apparatus. The tray (100) comprises a support plate (10), a limiting assembly (20) and a pressure plate assembly (30). The support plate is configured to carry a battery cell (200). The limiting assembly comprises a base (22), a moving member (21) and a mounting seat (23), wherein the base and the mounting seat define a moving channel, the moving member is movably arranged at the moving channel, and the moving member is provided with a first connecting part (211). The pressure plate assembly comprises a pressure plate (31) and a rotating member (32), wherein the pressure plate is rotatably connected to the mounting seat, the pressure plate can switch between a first positional state and a second positional state, and a second connecting part (311) is provided on the side of the pressure plate facing the support plate. When the pressure plate is rotated to a first position, by moving the moving member to a locking position, the first connecting part and the second connecting part are connected, thus keeping the pressure plate in the first position to press the battery cell; by moving the moving member to an unlocking position, the second connecting part separates from the first connecting part, enabling the pressure plate to rotate to a second position to release the battery cell. The tray enables easy and quick pressing or releasing of battery cells.

Description

Tray, transfer device and detection equipment

[0001] This application claims priority to Chinese Patent Application No. 202410888477.1, filed on July 3, 2024, the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of detection equipment, and in particular to a tray, a transfer device and a detection equipment. BACKGROUND

[0003] The electric core is an important component of the battery, and the performance of the electric core directly affects the use performance of the battery. The quality of the electric core needs to be detected before assembly.

[0004] The single square electric core is a soft and flat cuboid structure. During online detection, a tray is needed to support the electric core. In the related art, the tray is usually used to place the electric core on the tray, and the electric core is clamped from two directions by a positioning mechanism or a limiting mechanism. The overall structure is complex, and the steps of fixing and releasing the electric core are relatively cumbersome and inconvenient to operate. In the related art, the electric core is adsorbed by a suction cup, and the suction cup is provided with adsorption force by a gas source to adsorb the electric core on the suction cup. The structure is complex and inconvenient to operate. SUMMARY

[0005] Therefore, the embodiments of the present application provide a tray, a transfer device and a detection equipment to solve the problem of the existing tray for carrying the electric core, which has a complex structure and is inconvenient to operate when fixing or releasing the electric core.

[0006] In a first aspect, the embodiments of the present application provide a tray, comprising:

[0007] a support plate configured to support the electric core;

[0008] a limiting assembly comprising a base, a moving piece and a mounting seat, the base is connected to the support plate, the mounting seat is arranged on the side of the base away from the support plate, the base and the mounting seat define a moving channel, the moving piece is movably arranged at the moving channel, and the moving piece is configured with a first connecting portion; and

[0009] a pressing plate assembly comprising a pressing plate and a rotating piece, the pressing plate is rotationally connected with the mounting seat through the rotating piece, the pressing plate is operable to switch between a first position state and a second position state, and the side of the pressing plate facing the support plate is provided with a second connecting portion,

[0010] The pressing plate is rotated to the first position, the moving piece is moved to a locking position, the first connecting part and the second connecting part are connected, so that the pressing plate is kept in the first position to compress the battery cell; the moving piece is moved to an unlocking position, the second connecting part is separated from the first connecting part, and the pressing plate can be rotated to the second position to release the battery cell.

[0011] According to the embodiment of the present application, the base is provided with a first accommodating groove, the mounting seat is provided with a second accommodating groove, the first accommodating groove and the second accommodating groove are oppositely arranged, and the first accommodating groove and the second accommodating groove define the moving channel;

[0012] At least part of the mounting seat is embedded in the first accommodating groove, the first accommodating groove has a first groove wall, the second accommodating groove has a second groove wall oppositely arranged with the first groove wall, the first groove wall is provided with a first opening, and the second groove wall is provided with a second opening communicated with the first opening; and

[0013] The moving piece moves in the moving channel in a direction perpendicular to the first opening and the second opening.

[0014] According to the embodiment of the present application, the moving piece comprises a force applying part and a moving part, the moving part is configured with an accommodating groove, the first connecting part is arranged on a groove wall surface of the accommodating groove, and the force applying part is suitable for driving the moving part to move in the moving channel;

[0015] The mounting seat is provided with a through groove communicated with the second accommodating groove; and

[0016] The pressing plate is rotated to the first position, the second connecting part is connected with the first connecting part in the accommodating groove through the through groove.

[0017] According to the embodiment of the present application, the moving piece further comprises an elastic expansion part, and the elastic expansion part is arranged on a side of the moving part away from the force applying part;

[0018] The elastic expansion part is in a first state, the moving part abuts against a groove wall surface of the second groove wall, and the second connecting part is suitable for being connected with the first connecting part; and

[0019] The elastic expansion part is in a second state, the moving part is separated from the groove wall surface of the second groove wall, and the second connecting part is suitable for being separated from the first connecting part,

[0020] The pressure borne by the elastic expansion part in the second state is greater than the pressure borne by the elastic expansion part in the first state.

[0021] According to the embodiment of the present application, the limiting assembly further comprises a connecting plate and a fastener; and

[0022] The connecting plate is arranged in abutment with the top of the base and the top of the mounting seat, and the connecting plate is connected with the base by the fastener.

[0023] According to the embodiment of the present application, the pressing plate assembly further comprises a torsion member;

[0024] The torsion member is arranged on the rotating member, and a torsion arm of the torsion member is in abutment with the mounting seat;

[0025] When the pressing plate rotates to the first position, the torsion member is in an energy storage state; and

[0026] When the moving member moves to the unlocking position, the elastic force provided by the torsion member makes the pressing plate rotate towards the second position, and the pressing plate is kept in the second position.

[0027] According to the embodiment of the present application, the top of the mounting seat is provided with a limiting groove, and the torsion arm of the torsion member is located at the limiting groove.

[0028] According to the embodiment of the present application, further comprising: a clamping member;

[0029] At least two clamping members are arranged on opposite sides of the supporting plate; and

[0030] The clamping member is provided with a clamping groove for accommodating a clamping part of a clamping device.

[0031] According to the embodiment of the present application, further comprising: a positioning member;

[0032] The positioning member is arranged on a side of the clamping member away from the supporting plate;

[0033] The supporting plate is provided with a positioning hole extending into the clamping member, and the positioning hole is coaxially arranged with the positioning member; and

[0034] In the stacked state of the plurality of tray layers, in adjacent two of the tray layers, the positioning member of one of the tray layers is located in the positioning hole of the other of the tray layers.

[0035] According to the embodiment of the present application, at least two limiting assemblies are arranged on opposite sides of the supporting plate, and a plurality of pressing plate assemblies and a plurality of limiting assemblies are arranged one-to-one.

[0036] According to the embodiment of the present application, the pressing plate comprises a hard layer and a soft layer arranged in abutment, the soft layer faces the supporting plate, and the hard layer is located on a side of the soft layer away from the supporting plate.

[0037] According to the embodiments of the present application, the supporting plate is a non-metal piece.

[0038] In a second aspect, the embodiments of the present application provide a transfer device, comprising:

[0039] a tray as described above;

[0040] a clamping mechanism comprising two clamping jaws arranged oppositely, for clamping the tray; and

[0041] a transfer mechanism connected with the clamping mechanism, for transferring the tray.

[0042] In a third aspect, the embodiments of the present application provide a detection apparatus, comprising:

[0043] a transfer device as described above; and

[0044] a detection device comprising a conveying mechanism and a detection mechanism,

[0045] wherein the transfer device is used for transferring the tray carrying the battery cell to the conveying mechanism, and the detection mechanism is used for detecting the battery cell carried by the tray on the conveying mechanism.

[0046] The tray, the transfer device and the detection apparatus provided by the embodiments of the present application can at least achieve the following technical effects: through the downward and upward actions of the pressing plate, the pressing plate can be flexibly switched between the first position and the second position, through the switching of the moving piece between the locking position and the unlocking position, the pressing plate can be stably kept in the first position state or the second position state, so as to realize the pressing of the battery cell or the taking and placing of the battery cell, and this tray can conveniently and quickly realize the pressing or loosening of the battery cell. BRIEF DESCRIPTION OF DRAWINGS

[0047] The above and other objects, features and advantages of the present application will become more apparent from the following description of embodiments of the present application, taken in conjunction with the accompanying drawings, in which:

[0048] FIG. 1 schematically shows a structural schematic view of a tray according to an embodiment of the present application;

[0049] FIG. 2 schematically shows a view of a tray pressing a battery cell according to an embodiment of the present application;

[0050] FIG. 3 schematically shows a view of a tray loosening a battery cell according to an embodiment of the present application;

[0051] FIG. 4 schematically shows a structural schematic view of a supporting plate according to an embodiment of the present application;

[0052] FIG. 5 schematically shows a structural schematic view of a pressing plate assembly according to an embodiment of the present application;

[0053] Fig. 6 schematically shows a view of the first connecting part and the second connecting part connected according to an embodiment of the present application;

[0054] Fig. 7 schematically shows one of the views of the pressing plate in a first position state according to an embodiment of the present application;

[0055] Fig. 8 schematically shows another of the views of the pressing plate in a first position state according to an embodiment of the present application;

[0056] Fig. 9 schematically shows one of the views of the pressing plate in a second position state according to an embodiment of the present application;

[0057] Fig. 10 schematically shows another of the views of the pressing plate in a second position state according to an embodiment of the present application;

[0058] Fig. 11 schematically shows one of the structural views of the limiting assembly according to an embodiment of the present application;

[0059] Fig. 12 schematically shows another of the structural views of the limiting assembly according to an embodiment of the present application;

[0060] Fig. 13 schematically shows an exploded view of the limiting assembly according to an embodiment of the present application;

[0061] Fig. 14 schematically shows a structural view of the clamping member and the positioning member according to an embodiment of the present application;

[0062] Fig. 15 schematically shows a view of the transfer device clamping the tray according to an embodiment of the present application;

[0063] Fig. 16 schematically shows a structural view of the detection equipment according to an embodiment of the present application;

[0064] 100: tray; 200: battery cell; 210: battery cell group; 10: tray plate; 11: groove; 20: limiting assembly; 21: moving piece; 211: first connecting part; 212: force applying part; 213: moving part; 214: elastic stretchable part; 22: base; 221: first accommodating groove; 222: first groove wall; 2221: first opening; 23: mounting seat; 231: second accommodating groove; 232: second groove wall; 2321: second opening; 233: through groove; 234: limiting groove; 24: connecting plate; 30: pressing plate assembly; 31: pressing plate; 311: second connecting part; 312: soft layer; 313: hard layer; 32: rotating piece; 33: torsion piece; 40: clamping piece; 41: clamping groove; 50: positioning piece; 600: transfer device; 61: clamping mechanism; 62: transfer mechanism; 700: detection equipment; 71: first conveying mechanism; 72: radiographic detection mechanism; 721: first emitting unit; 722: first receiving unit; 73: second conveying mechanism; 74: tomographic detection mechanism; 741: second emitting unit; 742: second receiving unit. DETAILED DESCRIPTION

[0065] To make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the embodiments and the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0066] The terms used herein are only used to describe specific embodiments, and are not intended to limit the present application. The terms "include", "contain" and the like used herein indicate the existence of the described features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0067] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0068] The tray 100 provided by the embodiments of the present application will be described below with reference to FIGS. 1 to 14.

[0069] As shown in FIGS. 1-12, the tray 100 provided by the embodiments of the present application includes a tray plate 10, a limiting assembly 20, and a pressing plate assembly 30. The tray plate 10 is used to carry the battery cell 200. The limiting assembly 20 includes a base 22, a moving piece 21, and a mounting seat 23. The base 22 is connected to the tray plate 10. The mounting seat 23 is arranged on the side of the base 22 away from the tray plate 10. The base 22 and the mounting seat 23 define a moving channel. The moving piece 21 is movably arranged at the moving channel. The moving piece 21 is configured with a first connecting portion 211. The pressing plate assembly 30 includes a pressing plate 31 and a rotating piece 32. The pressing plate 31 is rotationally connected to the mounting seat 23 through the rotating piece 32. The pressing plate 31 is operable to switch between a first position state and a second position state. The side of the pressing plate 31 facing the tray plate 10 is provided with a second connecting portion 311.

[0070] In the first position state, the pressing plate 31 is rotated to the first position. The moving piece 21 is moved to a locking position. The first connecting portion 211 and the second connecting portion 311 are connected, so that the pressing plate 31 is kept in the first position to press the battery cell 200. In the unlocking position, the second connecting portion 311 is separated from the first connecting portion 211. The pressing plate 31 can be rotated to the second position to release the battery cell 200.

[0071] Specifically, the tray plate 10 is a plate-shaped body. The tray plate 10 is used to carry the battery cell 200. The length and width dimensions of the tray plate 10 are adapted to the dimensions of the battery cell 200 carried. The tray plate 10 has a length direction and a width direction. Along the width direction of the tray plate 10, the tray plate 10 has two component parts symmetrically distributed about a vertical plane perpendicular to the tray plate 10. The vertical plane is defined as the central plane of the tray plate 10. The direction in which the central plane of the tray plate 10 lies is consistent with the length direction.

[0072] The tray plate 10 is a non-metal piece. The tray plate 10 is made of plastic, rubber, carbon fiber, or the like. The plastic can be POM (polyoxymethylene) plastic, ABS (acrylonitrile butadiene styrene copolymer) plastic, or the like. For example, the tray plate 10 can be made of polyoxymethylene material. The polyoxymethylene material has high strength, hardness, and wear resistance. During the movement of the tray 100 along the conveying line body, the tray plate 10 is relatively rubbed with the conveying line body. The polyoxymethylene material has excellent wear resistance, so that the tray plate 10 has good wear resistance, which is conducive to improving the service life of the tray 100.

[0073] The tray plate 10 is a non-metal piece. During the detection of the battery cell 200 on the tray plate 10, the non-metal material has weak absorption capacity for X-rays, which maximally reduces the influence of the tray plate 10 on the detection of the battery cell 200, and ensures the accuracy of the detection. In addition, the tray plate 10 is a non-metal piece, which is conducive to the lightweight of the tray 100.

[0074] Further, as shown in FIG. 4, the recess 11 is formed on the pallet 10 by recessing the end face of the pallet 10 towards the center face of the pallet 10, and the groove width and groove depth of the recess 11 are not specifically limited. The battery cell 200 is placed on the pallet 10, and the partial area of the battery cell 200 corresponding to the recess 11 is located outside the pallet 10. When the battery cell 200 needs to be taken off the pallet 10, the battery cell 200 can be taken by the working tool at the recess 11, which facilitates the separation of the battery cell 200 from the pallet 10. The recess 11 provides a suitable operation space for placing or taking the battery cell 200, which is beneficial to the convenience of operation.

[0075] The limiting assembly 20 is arranged on the pallet 10, and the limiting assembly 20 is located close to the edge of the pallet 10. The number of the limiting assembly 20 is one, two or more, for example, the number of the limiting assembly 20 is an even number. Along the width direction of the pallet 10, the pallet 10 has opposite first and second sides, and the position of the limiting assembly 20 on the pallet 10 is arranged according to the number of the limiting assembly 20.

[0076] When the number of the limiting assembly 20 is one, the limiting assembly 20 is located in the middle of the pallet 10. When the number of the limiting assembly 20 is two, the two limiting assemblies 20 are located in the middle of the pallet 10, and the two limiting assemblies 20 are symmetrically arranged about the center face; or the two limiting assemblies 20 are staggered and arranged on the first and second sides of the pallet 10.

[0077] As shown in FIGS. 8, 9, 10, 11 and 12, the limiting assembly 20 includes a base 22, a moving piece 21 and a mounting seat 23. The base 22 can be connected with the pallet 10 by screwing, and the mounting seat 23 is used for mounting the pressing plate assembly 30, and the mounting seat 23 can be connected with the base 22 by screwing. The base 22 is constructed with a first accommodating cavity, and the mounting seat 23 is constructed with a second accommodating cavity, and the first accommodating cavity and the second accommodating cavity form a moving channel, and the moving piece 21 can move in the moving channel in a direction perpendicular to the center face. The moving piece 21 can also move in the moving channel in a direction parallel to the center face. The following is for the convenience of description, and the moving piece 21 is taken as an example to move in the moving channel in a direction perpendicular to the center face.

[0078] The moving piece 21 moves in the moving channel towards the direction close to the center face, and the moving piece 21 can move to an unlocking position; the moving piece 21 moves in the moving channel towards the direction away from the center face, and the moving piece 21 can move to a locking position. The moving piece 21 can be moved to the unlocking position by the working tool applying a pushing force to the moving piece 21, and the moving piece 21 can be moved to the locking position by the working tool applying a pulling force to the moving piece 21. The moving piece 21 can also be moved from the unlocking position to the locking position by means of the rebound force.

[0079] As shown in FIG. 5 and FIG. 6, the first connecting part 211 is configured on the moving part 21, and the second connecting part 311 is configured on the side of the pressing plate 31 facing the tray 10. The first connecting part 211 moves close to or away from the second connecting part 311 with the movement of the moving part 21. The first connecting part 211 and the second connecting part 311 can be connected by hooking, magnetic attraction, or the like.

[0080] For example, the first connecting part 211 and the second connecting part 311 are both magnets. When the moving part 21 is in the locked position, the first connecting part 211 and the second connecting part 311 are close to each other and are connected together by magnetic attraction.

[0081] For example, as shown in FIG. 6, the first connecting part 211 and the second connecting part 311 are both hook structures. When the moving part 21 is in the locked position, the first connecting part 211 and the second connecting part 311 are close to each other, and the hook end of the first connecting part 211 and the hook end of the second connecting part 311 are hooked together.

[0082] The pressing plate 31 is generally cuboid. One end of the pressing plate 31 is rotationally connected to the mounting seat 23 through the rotating part 32. For example, the mounting seat 23 is provided with a first shaft hole, and the pressing plate 31 is provided with a second shaft hole. The first shaft hole and the second shaft hole are coaxially arranged, and the axial directions of the first shaft hole and the second shaft hole are both parallel to the length direction of the tray 10. The rotating part 32 includes a rotating shaft, which passes through the first shaft hole and the second shaft hole to rotationally connect the pressing plate 31 and the mounting seat 23.

[0083] As shown in FIG. 2 and FIG. 3, the pressing plate 31 can be switched between a first position state and a second position state. When the pressing plate 31 is in the first position, the pressing plate 31 is parallel to the tray 10, and the battery cell 200 is placed on the tray 10, located between the tray 10 and the pressing plate 31. When the pressing plate 31 is in the second position, the pressing plate 31 is perpendicular to the tray 10, and the battery cell 200 can be taken off the tray 10 or placed on the tray 10 for detection.

[0084] When the pressing plate 31 is rotated downward to the first position, the moving part 21 moves to the locked position, and the first connecting part 211 and the second connecting part 311 are connected, so that the pressing plate 31 is stably kept in the first position. The pressing plate 31 tightly presses the battery cell 200 on the tray 10, avoiding the battery cell 200 from shaking during the movement of the tray 100. When the moving part 21 moves to the unlocked position, the first connecting part 211 and the second connecting part 311 are separated, and the pressing plate 31 is rotated upward to the second position, away from the tray 10, so that the battery cell 200 can be conveniently taken off or placed on the tray 10.

[0085] The downward and upward rotation actions of the pressing plate 31 can be operated by an operator or a work tool, and the movement action of the moving part 21 can be operated by an operator or a work tool.

[0086] The following describes the use process of the tray 100.

[0087] The battery cell 200 to be detected is placed on the tray plate 10, a downward overturning force is applied to the pressing plate 31, the pressing plate 31 is overturned to the first position, a pulling force perpendicular to the central plane direction is applied to the moving piece 21, the moving piece 21 moves to the locking position, the first connecting part 211 and the second connecting part 311 are connected together, so that the pressing plate 31 is stably kept in the first position, and the battery cell 200 is stably pressed on the tray plate 10.

[0088] After the battery cell 200 to be detected is fixed on the tray 100, the tray 100 carrying the battery cell 200 can be placed on the conveying line body of the detection equipment by a mechanical hand, transfer equipment or an operator, and the tray 100 moves to the detection channel of the detection equipment for detection.

[0089] After the detection of the battery cell 200 is completed, a pushing force towards the central plane side is applied to the moving piece 21, the moving piece 21 moves to the unlocking position, the first connecting part 211 and the second connecting part 311 are separated, and an upward overturning force is applied to the pressing plate 31, the pressing plate 31 is overturned to the second position, so that the detected battery cell 200 can be taken off. Further, the next battery cell 200 to be detected is placed on the tray plate 10, and the above steps are repeated to detect the next battery cell 200.

[0090] By applying an overturning force to the pressing plate 31 facing the side of the tray plate 10 or the side away from the tray plate 10, the pressing plate 31 can be conveniently overturned to the first position or the second position. By applying an external force to the moving piece 21, the moving piece 21 can be flexibly switched between the locking position and the unlocking position. When the moving piece 21 moves to the locking position, the first connecting part 211 and the second connecting part 311 are connected, so that the pressing plate 31 is stably kept in the first position, and the battery cell 200 is pressed. When the moving piece 21 moves to the unlocking position, the first connecting part 211 and the second connecting part 311 are separated, and the pressing plate 31 is overturned to the second position, so as to facilitate the taking and placing of the battery cell 200.

[0091] In the embodiment of the present application, through the downward overturning action and the upward overturning action of the pressing plate 31, the pressing plate 31 can be flexibly switched between the first position and the second position. Through the switching of the moving piece 21 between the locking position and the unlocking position, the pressing plate 31 can be stably kept in the first position state or the second position state, so as to realize the pressing of the battery cell 200 or the taking and placing of the battery cell 200. The tray 100 can conveniently and quickly realize the pressing or loosening of the battery cell 200.

[0092] As shown in FIG. 11, FIG. 12 and FIG. 13, in an alternative embodiment, the base 22 is provided with a first accommodating groove 221, the mounting seat 23 is provided with a second accommodating groove 231, the first accommodating groove 221 and the second accommodating groove 231 are oppositely arranged, and the first accommodating groove 221 and the second accommodating groove 231 define a moving channel; at least a part of the mounting seat 23 is embedded in the first accommodating groove 221, the first accommodating groove 221 has a first groove wall 222, the second accommodating groove 231 has a second groove wall 232 oppositely arranged with the first groove wall 222, the first groove wall 222 is provided with a first opening 2221, and the second groove wall 232 is provided with a second opening 2321 communicating with the first opening 2221; the moving member 21 moves in the moving channel in a direction perpendicular to the first opening 2221 and the second opening 2321.

[0093] Specifically, the base 22 and the mounting seat 23 can both be cuboid-shaped, the length direction of the base 22 is consistent with the length direction of the supporting plate 10, the length direction of the mounting seat 23 is consistent with the length direction of the base 22, and the width direction of the mounting seat 23 is consistent with the width direction of the base 22.

[0094] The side of the base 22 facing the mounting seat 23 is provided with the first accommodating groove 221, the side of the mounting seat 23 facing the base 22 is provided with the second accommodating groove 231, the transverse section of the first accommodating groove 221 is larger than the transverse section of the second accommodating groove 231, the first accommodating groove 221 is adapted to accommodate the mounting seat 23, and the second accommodating groove 231 is adapted to accommodate the moving member 21.

[0095] The first accommodating groove 221 has a first groove bottom surface and a plurality of side groove walls connected with the first groove bottom surface, the second accommodating groove 231 has a second groove bottom surface and a plurality of side groove walls connected with the second groove bottom surface, and the second groove bottom surface and the first groove bottom surface are oppositely arranged.

[0096] The mounting seat 23 is placed in the first accommodating groove 221, the circumferential surface of the mounting seat 23 is close to or abuts against the side groove wall surface of the first accommodating groove 221, and the first accommodating groove 221 limits the mounting seat 23 in the length direction and the width direction.

[0097] The first groove bottom surface of the first accommodating groove 221, the second groove bottom surface of the second accommodating groove 231, the side groove wall surface of the first accommodating groove 221 and the plurality of side groove wall surfaces of the second accommodating groove 231 enclose the moving channel, and the main body part of the moving member 21 is embedded in the moving channel. The bottom surface of the moving member 21 is close to or abuts against the first groove bottom surface, and the top surface of the moving member 21 is close to or abuts against the second groove bottom surface.

[0098] Along the width direction of the base 22, one side groove wall of the base 22 away from the tray 10 is defined as a first groove wall 222; along the width direction of the mounting seat 23, one side groove wall of the mounting seat 23 away from the tray 10 is defined as a second groove wall 232. The first groove wall 222 is provided with a first opening 2221, and the second groove wall 232 is provided with a second opening 2321, the first opening 2221 and the second opening 2321 are communicated, and part of the moving piece 21 is located at the first opening 2221 and the second opening 2321. The first opening 2221 and the second opening 2321 are both U-shaped openings, which facilitates the assembly of the base 22, the moving piece 21 and the mounting seat 23.

[0099] The first opening 2221 and the second opening 2321 constitute a working space for exerting an external force on the moving piece 21, and the central axis direction of the first opening 2221 and the second opening 2321 is perpendicular to the central plane of the tray 10. The moving piece 21 can move towards the central plane or away from the central plane in a direction perpendicular to the central plane at the first opening 2221 and the second opening 2321.

[0100] A pushing force or a pulling force is exerted on the moving piece 21 in a direction perpendicular to the central plane on the outside of the limiting assembly 20, so as to move the moving piece 21 to the unlocking position or the locking position, which is beneficial to the convenience of operation.

[0101] Alternatively, the first opening 2221 can also be arranged on the side groove wall of the base 22 consistent with the width direction thereof, and the second opening 2321 can also be arranged on the side groove wall of the mounting seat 23 consistent with the width direction thereof. The central axis direction of the first opening 2221 and the second opening 2321 is parallel to the central plane of the tray 10. The moving piece 21 can move to the locking position or the unlocking position in a direction parallel to the central plane at the first opening 2221 and the second opening 2321.

[0102] The assembly process of the base 22, the moving piece 21 and the mounting seat 23 is described below.

[0103] Firstly, the moving piece 21 is placed at the first accommodating groove 221 of the base 22, and the position of the moving piece 21 is adjusted so that the moving piece 21 is in a centered state with the first opening 2221.

[0104] Then, the mounting seat 23 is placed at the first accommodating groove 221, and during the placement process, the positions of the moving piece 21 and the mounting seat 23 are adjusted so that the moving piece 21 is located in the space surrounded by the first groove bottom surface, the second groove bottom surface, the side groove wall surface of the first accommodating groove 221 and the plurality of side groove wall surfaces of the second accommodating groove 231.

[0105] Finally, the base 22 and the mounting seat 23 can be connected by screwing. For example, the base 22 and the mounting seat 23 are both provided with threaded holes, and screws are screwed into the threaded holes of the two, so as to realize the fixed connection of the base 22 and the mounting seat 23.

[0106] During the entire assembly process, the operation is convenient, and in addition, the base 22 and the mounting seat 23 are connected by screwing, which is beneficial to the convenience of installation and disassembly.

[0107] The first accommodating groove 221 and the second accommodating groove 231 define a movement channel for the movement of the moving part 21, which is beneficial to the flexibility of the movement of the moving part 21, and at the same time, the first groove bottom surface, the second groove bottom surface and the side groove wall surface limit the movement of the moving part 21, which is beneficial to the stability of the movement of the moving part 21.

[0108] In the embodiment of the application, the mounting seat 23 is embedded in the first accommodating groove 221, the first accommodating groove 221 and the second accommodating groove 231 form a movement channel, and the moving part 21 moves in the movement channel in a direction perpendicular to the first opening 2221 and the second opening 2321, which is beneficial to the convenience of assembly of the base 22, the moving part 21 and the mounting seat 23, and at the same time, is beneficial to the stability of the movement of the moving part 21.

[0109] As shown in FIGS. 11, 12 and 13, in an optional embodiment, the moving part 21 includes a force applying part 212 and a moving part 213, the moving part 213 is configured with an accommodating groove, the first connecting part 211 is arranged on the groove wall surface of the accommodating groove, and the force applying part 212 is adapted to drive the moving part 213 to move in the movement channel; the mounting seat 23 is provided with a through groove 233, the through groove 233 is communicated with the second accommodating groove 231; the pressing plate 31 is rotated to the first position, and the second connecting part 311 is connected with the first connecting part 211 in the accommodating groove through the through groove 233.

[0110] Specifically, the moving part 21 includes a force applying part 212 and a moving part 213 connected with the force applying part 212, the force applying part 212 is located at the first opening 2221 and the second opening 2321, and the moving part 213 is located in the movement channel. The force applying part 212 can be a plate-shaped body, which is convenient for the work tool or the work personnel to apply a pushing force or a pulling force.

[0111] The size of the second opening 2321 in the length direction is smaller than the size of the first opening 2221 in the length direction along the length direction of the limiting assembly 20. The force applying part 212 is connected with the moving part 213 through a connecting part, the size of the force applying part 212 matches the size of the first opening 2221, and the size of the connecting part matches the size of the second opening 2321. It can be understood that the sizes of the moving part 213 and the force applying part 212 are both larger than the size of the second opening 2321, and an external force is applied to the force applying part 212 to avoid the force applying part 212 from entering the moving channel and to avoid the moving part 213 from sliding out of the moving channel.

[0112] The moving part 213 has a first end face facing the force applying part 212 and a second end face away from the force applying part 212. When the moving part 213 moves to the locking position, the first end face of the moving part 213 abuts against the second groove wall face of the mounting seat 23. When the moving part 213 moves to the unlocking position, the first end face of the moving part 213 is separated from the second groove wall face of the mounting seat 23.

[0113] The moving part 213 is configured with an accommodating groove, for example, a bottom plate and a plurality of side plates enclose the accommodating groove, and the first connecting part 211 is located on one groove wall face of the accommodating groove. The accommodating groove constitutes a space for the second connecting part 311 to enter, and in addition, the accommodating groove is enclosed by a plurality of side plates, so that the first connecting part 211 has sufficient strength to avoid deformation of the first connecting part 211 due to long-term stress.

[0114] The mounting seat 23 is provided with a through groove 233, which can be a mouth-shaped through groove or a U-shaped through groove. The through groove 233 is in communication with the second accommodating groove 231, and the through groove 233 is used for the second connecting part 311 to pass through.

[0115] During the process that the pressing plate 31 rotates from the second position to the first position, the second connecting part 311 on the pressing plate 31 gradually passes through the through groove 233 on the mounting seat 23 and enters the accommodating groove of the moving part 213, until the pressing plate 31 is flipped down to the first position, the second connecting part 311 passes through the through groove 233 and enters the accommodating groove, and is connected with the first connecting part 211.

[0116] A fork hole can be provided on the force applying part 212, and a fork taking part of the working tool is inserted into the fork hole to apply a pushing force to the force applying part 212, so that the moving part 213 moves towards the direction close to the center face, the moving part 213 moves to the unlocking position, the first connecting part 211 and the second connecting part 311 are separated, and the pressing plate 31 can be flipped up to the second position under the flipping force. A downward flipping force is applied to the pressing plate 31, and a pulling force is applied to the force applying part 212, so that the moving part 213 moves towards the direction away from the center face, the moving part 213 moves to the locking position, the first connecting part 211 and the second connecting part 311 are connected, and the pressing plate 31 is stably kept in the first position.

[0117] The moving part 213 is configured with a receiving groove, and the first connecting part 211 is arranged on the groove wall surface of the receiving groove, so that the first connecting part 211 has sufficient strength, and further, the stability of the connection between the first connecting part 211 and the second connecting part 311 is ensured.

[0118] The second connecting part 311 is connected with the first connecting part 211 through the through groove 233, and the through groove 233 plays a guiding role on the second connecting part 311. During the process of the pressing plate 31 being turned down, the second connecting part 311 is smoothly guided into the receiving groove under the guiding role of the through groove 233; during the process of the pressing plate 31 being turned up, the second connecting part 311 is separated from the mounting seat 23 under the guiding role of the through groove 233.

[0119] In the embodiment of the present application, the force applying part 212 is subjected to an external force, so that the moving part 213 can be flexibly switched between the locking position and the unlocking position, which is beneficial to the convenience of operation; the first connecting part 211 is arranged on the groove wall surface of the receiving groove, so that the first connecting part 211 has sufficient strength, and further, the stability of the connection between the first connecting part 211 and the second connecting part 311 is ensured; the through groove 233 plays a guiding role on the movement of the second connecting part 311, so as to ensure the reliability of the turning process of the pressing plate 31.

[0120] As shown in FIG. 13, in an optional embodiment, the moving part 21 further comprises an elastic expansion part 214, which is arranged on the side of the moving part 213 away from the force applying part 212; the elastic expansion part 214 is in a first state, the moving part 213 abuts against the groove wall surface of the second groove wall 232, and the second connecting part 311 is adapted to be connected with the first connecting part 211; the elastic expansion part 214 is in a second state, the moving part 213 is separated from the groove wall surface of the second groove wall 232, and the second connecting part 311 is adapted to be separated from the first connecting part 211, wherein the pressure borne by the elastic expansion part 214 in the second state is greater than the pressure borne by the elastic expansion part 214 in the first state.

[0121] Specifically, the second end surface of the moving part 213 is provided with the elastic expansion part 214, which can be a compression spring, and the number of the compression springs is one or more. For example, the number of the compression springs is two, and the two compression springs are arranged at the second end surface of the moving part 213 in a spaced manner. One end of the compression spring abuts against the moving part 213, and the other end of the compression spring abuts against the groove wall surface of the first receiving groove 221.

[0122] Alternatively, the second end surface of the moving part 213 is recessed to form a first receiving groove, the groove wall surface of the first receiving groove 221 is recessed to form a second receiving groove, the first receiving groove and the second receiving groove are coaxially arranged, and the two ends of the compression spring are located in the first receiving groove and the first receiving groove respectively. The first receiving groove and the first receiving groove play a limiting role on the compression deformation of the compression spring.

[0123] Optionally, the elastic extension part 214 is a spring sheet, one end of the spring sheet abuts against the second end surface of the moving part 213, and the other end of the spring sheet abuts against the groove wall surface of the first accommodating groove 221.

[0124] The elastic extension part 214 has a first state and a second state, the first state is an initial state, in the initial state, the elastic extension part 214 receives zero pressure or relatively small pressure. The second state is a pressure state, the pressure of the elastic extension part 214 in the second state is greater than that in the first state.

[0125] When the elastic extension part 214 is in the first state, the first end surface of the moving part 213 abuts against the groove wall surface of the second groove wall 232 of the mounting seat 23, and the two ends of the elastic extension part 214 abut against the second end surface of the moving part 213 and the groove wall surface of the base 22 respectively. At this time, the moving part 213 is in the locking position, that is, the first connecting part 211 is in the locking position, which ensures that the moving part 213 will not shake and ensures that the pressing plate 31 is stably kept in the first position.

[0126] When it is needed to turn the pressing plate 31 up to the second position, a pushing force towards the center surface side is applied to the force applying part 212, the elastic extension part 214 is in the second state after being pressed, the first end surface of the moving part 213 is separated from the groove wall surface of the second groove wall 232 of the mounting seat 23, and the second connecting part 311 is separated from the first connecting part 211.

[0127] When it is needed to turn the pressing plate 31 down to the first position, no external force needs to be applied to the force applying part 212, in the process of moving the second connecting part 311 towards the first connecting part 211, the second connecting part 311 applies a pressing force to the first connecting part 211, the pressing force is transmitted to the elastic extension part 214, so that the elastic extension part 214 is compressed and deformed, and the moving part 213 moves towards the unlocking position; after the pressing force disappears, the moving part 213 moves to the locking position based on the elastic recovery force of the elastic extension part 214.

[0128] As shown in FIG. 6, for example, the end of the first connecting part 211 is in the shape of a barb, the first connecting part 211 has a first inclined surface and a first lap surface connected with the first inclined surface, and the end of the second connecting part 311 is also in the shape of a barb, the second connecting part 311 has a second inclined surface and a second lap surface connected with the second inclined surface.

[0129] During the movement of the second connecting part 311 through the through groove 233 towards the accommodating groove, the second inclined surface of the second connecting part 311 is in contact with the first inclined surface, and the extrusion force of the second connecting part 311 on the first connecting part 211 causes the moving part 21 to move towards the side close to the center surface until the second lap surface of the second connecting part 311 moves below the first lap surface of the first connecting part 211, and the extrusion force of the second connecting part 311 on the first connecting part 211 disappears.

[0130] At this time, the elastic expansion part 214 returns to the first state based on the elastic force, and the elastic force of the elastic expansion part 214 causes the moving part 213 to move to the locking position, at this time, the first lap surface and the second lap surface are attached together, and the first lap surface is above the second lap surface, realizing the stable connection of the first connecting part 211 and the second connecting part 311, so that the pressing plate 31 is stably kept in the first position.

[0131] In the embodiment of the application, the elastic expansion part 214 is arranged between the second end surface of the moving part 213 and the groove wall surface of the base 22, the elastic expansion part 214 is in the first state, and the two ends of the elastic expansion part 214 are respectively in abutment with the base 22 and the moving part 213, so that the moving part 213 is stably kept in the locking position, thereby facilitating the stability of the pressing plate 31 in the first position; during the downward turning of the pressing plate 31, the elastic expansion part 214 is changed from the first state to the second state based on the extrusion force between the second connecting part 311 and the first connecting part 211, and the elastic expansion part 214 is changed from the second state to the first state based on the elastic force, finally realizing the connection of the second connecting part 311 and the first connecting part 211, and no external force needs to be applied to the force applying part 212 during the downward turning, which is convenient for operation.

[0132] As shown in FIGS. 9, 10, 11 and 12, in an optional embodiment, the limiting assembly 20 further comprises a connecting plate 24 and a fastener; the connecting plate 24 is attached to the top of the base 22 and the top of the mounting seat 23, and the connecting plate 24 is connected to the base 22 by the fastener.

[0133] Specifically, the mounting seat 23 is placed at the first accommodating groove 221, and at least part of the top surface of the mounting seat 23 is flush with the top surface of the base 22.

[0134] Optionally, a through hole is formed in the connecting plate 24, a first threaded hole is formed in the base 22, and a second threaded hole is formed in the supporting plate 10, the through hole, the first threaded hole and the second threaded hole are coaxially arranged, and the fastener is a screw. The connecting plate 24 is attached to the top surface of the base 22 and the top surface of the mounting seat 23, the screw is screwed into the through hole, the first threaded hole and the second threaded hole in sequence, and the connecting plate 24, the base 22 and the mounting seat 23 are connected.

[0135] The connecting mode effectively reduces the connecting parts of the supporting plate 10 and the limiting assembly 20, and is beneficial to the convenience of installation and disassembly.

[0136] As shown in FIGS. 5, 7, 8, 9 and 10, in an optional embodiment, the pressing plate assembly 30 further comprises a torsion piece 33; the torsion piece 33 is arranged on the rotating piece 32, and a torsion arm of the torsion piece 33 abuts against the mounting seat 23; when the pressing plate 31 rotates to the first position, the torsion piece 33 is in an energy storage state; when the moving piece 21 moves to the unlocking position, the elastic force provided by the torsion piece 33 makes the pressing plate 31 rotate towards the second position, and makes the pressing plate 31 remain in the second position.

[0137] Specifically, the pressing plate assembly 30 further comprises the torsion piece 33, and the rotating piece 32 is a rotating shaft.

[0138] For example, the top of the mounting seat 23 is formed with two first rotating connecting parts, the first rotating connecting parts are provided with first shaft holes, and the two first shaft holes are coaxially arranged. One end of the pressing plate 31 is provided with an avoiding opening and second rotating connecting parts located on both sides of the avoiding opening, the second rotating connecting parts are provided with second shaft holes, the two second shaft holes are coaxially arranged, and the rotating shaft passes through the first shaft holes and the second shaft holes.

[0139] The torsion spring is sleeved on the rotating shaft, and the torsion spring stores energy in a compressed state. The energy released by the torsion spring provides the turning force of the pressing plate 31 to turn upwards.

[0140] The connection process of the pressing plate 31, the rotating shaft, the torsion spring and the mounting seat 23 is as follows: first, the pressing plate 31 is placed in the region between the two first rotating connecting parts, the rotating shaft passes through the first shaft holes and the second shaft holes at one end of the pressing plate 31 and the mounting seat 23 and the second shaft holes and the first shaft holes at the other end of the pressing plate 31 and the mounting seat 23 in sequence, and in the process of passing through the first shaft holes and the second shaft holes, the torsion spring is sleeved on the rotating shaft, and the assembly process is convenient.

[0141] The torsion arm of the torsion spring abuts against the top surface of the mounting seat 23, the pressing plate 31 turns downwards to the first position, the second connecting part 311 is connected with the first connecting part 211, and the torsion spring stores energy.

[0142] The pushing force is applied to the force applying part 212, the moving piece 21 moves to the unlocking position, the second connecting part 311 is separated from the first connecting part 211, the elastic force of the torsion spring makes the pressing plate 31 rotate towards the side away from the supporting plate 10, until the pressing plate 31 rotates to the second position and is stably kept in the second position.

[0143] In the process of turning over the pressing plate 31, only a pushing force needs to be applied to the moving piece 21, without applying a turning force to the pressing plate 31, so that the pressing plate 31 can be turned over to the second position, which is convenient for operation. In addition, the torsion spring can stably keep the pressing plate 31 in the second position, which is conducive to further improving the stability of the pressing plate 31 in the second position.

[0144] In the process of turning over the pressing plate 31, only a turning force needs to be applied to the pressing plate 31, without applying an external force to the moving piece 21. The moving part 213 moves under the extrusion force applied by the second connecting part 311 to the first connecting part 211, so that the second connecting part 311 and the first connecting part 211 are connected. The elastic expansion part 214 can stably keep the pressing plate 31 in the first position.

[0145] In addition, in the process of turning over the pressing plate 31, the torsion spring can provide a suitable buffer force to the pressing plate 31, so as to avoid the pressing plate 31 from being pressed to the battery cell 200 when it is quickly turned over to the first position.

[0146] As shown in FIGS. 11 and 12, in an optional embodiment, the top of the mounting seat 23 is provided with a limiting groove 234, and the torsion arm of the torsion piece 33 is located at the limiting groove 234.

[0147] Specifically, the top surface of the mounting seat 23 is provided with a limiting groove 234, and the number of the limiting grooves 234 is the same as that of the torsion springs. The number of the torsion springs is one, and the torsion spring is sleeved on the middle region of the rotating shaft. The limiting groove 234 corresponds to the position of the torsion spring, and the torsion arm of the torsion spring is located at the limiting groove 234. In the process of turning over or turning up the pressing plate 31, the torsion arm of the torsion spring moves slightly along the extension direction of the limiting groove 234, and at the same time, the torsion arm of the torsion spring abuts against the groove wall surface of the limiting groove 234. The limiting groove 234 limits the torsion arm of the torsion spring, which is conducive to the stability of the rotation of the pressing plate 31.

[0148] The number of the torsion springs is two, and the two torsion springs are arranged close to the second rotating connecting part. The two torsion springs are conducive to further improving the stability of the rotation of the pressing plate 31. It can be understood that the number of the torsion springs can be more than two, and the plurality of torsion springs are sleeved on the rotating shaft at intervals.

[0149] In the embodiments of the present application, the torsion arm of the torsion spring is located in the limiting groove 234, which is conducive to improving the stability of the rotation of the pressing plate 31.

[0150] As shown in FIGS. 1, 2, 3 and 14, in an optional embodiment, the tray 100 further comprises a clamping piece 40. At least two clamping pieces 40 are arranged on opposite sides of the tray 10. The clamping piece 40 is provided with a clamping groove 41 for accommodating a clamping part of a clamping device.

[0151] Specifically, the tray 100 further comprises clamping pieces 40, the number of which can be two, four or more. When the number of the clamping pieces 40 is four, two clamping pieces 40 are arranged on the first side of the tray 10 in the length direction of the tray 10, and the other two clamping pieces 40 are arranged on the second side of the tray 10 in the length direction of the tray 10. The two clamping pieces 40 on the same side are located on opposite sides of the limiting assembly 20.

[0152] The clamping piece 40 can be a square body, and the clamping piece 40 can be connected to the tray 10 by screwing. The side of the clamping piece 40 away from the tray 10 is provided with a clamping groove 41, and the size of the clamping groove 41 is matched with the clamping part of the clamping device.

[0153] Taking the case of four clamping pieces 40 as an example, the clamping device comprises two oppositely arranged clamping jaws, and two clamping parts are arranged on each clamping jaw.

[0154] The pressing plate 31 presses the battery cell 200 tightly on the tray 10, at this time, the two clamping jaws of the clamping device are close to each other, until the four clamping parts are respectively in abutment with the four clamping grooves 41, thereby realizing the stable clamping of the tray 100, and further transferring the tray 100 to the corresponding conveying line body.

[0155] The tray 10 is provided with the clamping piece 40, and the stable clamping of the tray 100 is realized by the clamping device, which effectively avoids the slipping of the tray 100 in the transfer process, and is beneficial to the safety in the transfer process. In addition, the clamping piece 40 cooperates with the clamping device to realize the transfer of the tray 100 and the battery cell 200, without the participation of the operator, which is beneficial to improving the working efficiency of the production line.

[0156] As shown in FIGS. 1, 2, 3 and 14, in an optional embodiment, the tray 100 further comprises a positioning piece 50; the positioning piece 50 is arranged on the side of the clamping piece 40 away from the tray 10; the tray 10 is provided with a positioning hole, and the positioning hole extends into the clamping piece 40, and the positioning hole and the positioning piece 50 are coaxially arranged; in the stacked state of the plurality of trays 100, in the two adjacent trays 100, the positioning piece 50 of one tray 100 is located in the positioning hole of the other tray 100.

[0157] Specifically, the top of the clamping piece 40 is provided with the positioning piece 50, which can be a columnar body, and the positioning piece 50 can be connected to the clamping piece 40 by welding or screwing.

[0158] The tray 10 is provided with a positioning hole, and the positioning hole extends into the clamping piece 40, and the hole diameter of the positioning hole is matched with the diameter of the positioning piece 50, and the positioning piece 50 and the positioning hole are coaxially arranged. It can be understood that the top surface of the clamping piece 40 is not lower than the top surface of the mounting seat 23.

[0159] When the plurality of trays 100 are stacked in the height direction, the positioning member 50 of the next tray 100 is located in the positioning hole of the previous tray 100, and the plurality of trays 100 are not prone to relative movement during the transfer of the plurality of trays 100, thereby facilitating the stacking and transfer of the plurality of trays 100.

[0160] As shown in FIGS. 1, 2 and 3, in an optional embodiment, at least two limiting assemblies 20 are arranged on opposite sides of the tray plate 10, and a plurality of pressing plate assemblies 30 are arranged in one-to-one correspondence with the plurality of limiting assemblies 20.

[0161] Specifically, the number of limiting assemblies 20 is even, for example, two limiting assemblies 20 are arranged on the first side and the second side of the tray plate 10, and the two limiting assemblies 20 are symmetrically arranged about the center of the tray plate 10. The two limiting assemblies 20 can also be arranged on the first side and the second side of the tray plate 10.

[0162] The number of pressing plate assemblies 30 and limiting assemblies 20 is the same, and the plurality of pressing plate assemblies 30 and the plurality of limiting assemblies 20 are used to stably fix the battery cell 200.

[0163] During the movement of the tray 100 along the conveying line, the plurality of pressing plate assemblies 30 ensure that the battery cell 200 is not prone to movement, and during the passage of the tray 100 carrying the battery cell 200 through the detection channel, the position and angle of the battery cell 200 are not prone to change, thereby achieving accurate detection of the battery cell 200.

[0164] As shown in FIG. 5, in an optional embodiment, the pressing plate 31 includes a hard layer 313 and a soft layer 312 arranged in close contact, the soft layer 312 faces the tray plate 10, and the hard layer 313 is located on the side of the soft layer 312 away from the tray plate 10.

[0165] Specifically, the pressing plate 31 is composed of a hard layer 313 and a soft layer 312, and the hard layer 313 can be made of POM (polyoxymethylene) material, ABS (acrylonitrile-butadiene-styrene copolymer) material, carbon fiber material, etc. The soft layer 312 can be made of PU (polyurethane) material, rubber, etc.

[0166] The hard layer 313 and the soft layer 312 can be connected by bonding. When the pressing plate 31 is flipped down to the first position, the hard layer 313 can provide a certain pressure to press the battery cell 200, avoiding movement of the battery cell 200 during conveying, and the soft layer 312 directly contacts the battery cell 200, avoiding damage to the battery cell 200 during pressing.

[0167] In addition, the pressing plate 31 is a non-metal piece, which is conducive to reducing the influence on the detection of the battery cell 200, and also conducive to the lightweight of the tray 100.

[0168] Further, the limiting assembly 20 comprises a base 22, a moving piece 21 and a mounting seat 23, and part or all of the base 22, the moving piece 21 and the mounting seat 23 are made of non-metallic materials, for example, POM (polyoxymethylene) material, ABS (acrylonitrile-butadiene-styrene copolymer) material, carbon fiber material, etc. This is conducive to reducing the influence on the detection of the battery cell 200, and also conducive to the lightweight of the tray 100.

[0169] The clamping piece 40 and the positioning piece 50 can also be made of non-metallic materials, for example, POM (polyoxymethylene) material, ABS (acrylonitrile-butadiene-styrene copolymer) material, carbon fiber material, etc. This is conducive to reducing the influence on the detection of the battery cell 200, and also conducive to the lightweight of the tray 100.

[0170] As shown in FIG. 15, the embodiment of the present application also provides a transfer device 600, which comprises the above-mentioned tray 100, a clamping mechanism 61, a transfer mechanism 62 and a driving mechanism. The transfer device 600 can be arranged at the entrance or exit of the detection device.

[0171] The structure of the tray 100 is as described above, and will not be described here. The moving end of the transfer mechanism 62 is connected with the clamping mechanism 61, the clamping mechanism 61 comprises two clamping jaws, each clamping jaw has two clamping parts, and the driving mechanism can drive the two clamping parts on both sides to approach or move away from each other.

[0172] The tray 100 carrying the battery cell 200 moves along the production line to a position close to the entrance section of the detection device, and the driving mechanism drives the four clamping parts to respectively abut against the clamping grooves 41 on the first side and the second side of the tray 10, so as to clamp the tray 100.

[0173] The transfer mechanism 62 can perform multiple dimensional rotation and translation movements, the clamping mechanism 61 clamps the tray 100, and the tray 100 is placed on the entrance section of the conveying line body through the rotation and translation movements of the transfer mechanism 62. Further, the position and angle of the tray 100 can be adjusted through the rotation and translation movements of the transfer mechanism 62, so as to adjust the position and angle of the battery cell 200 on the tray 100. The tray 100 moves along the entrance section of the conveying line body to the detection channel, so as to detect the battery cell 200.

[0174] After the detection is completed, the tray 100 moves to the exit section of the conveying line body, and the exit section of the conveying line body is also provided with a transfer device 600. The driving mechanism drives the four clamping parts to approach each other to clamp the tray 100, and further transfers the tray 100 from the exit section of the conveying line body to the next conveying line body through the rotation and translation movements of the transfer mechanism 62.

[0175] The structure of the tray 100 enables convenient and fast fixing or loosening of the battery cell 200. The clamping groove 41 provided on the tray 100 is beneficial to the stability of clamping of the tray 100 by the clamping mechanism 61, thereby improving the transfer efficiency of the battery cell 200 and ensuring the reliability of the transfer process.

[0176] As shown in FIG. 16, the embodiment of the present application further provides a detection device 700, which comprises the detection apparatus and the transfer device 600 described above.

[0177] Optionally, the detection apparatus comprises a first conveying mechanism 71, a radiographic detection mechanism 72, a second conveying mechanism 73 and a tomographic detection mechanism 74.

[0178] The first conveying mechanism 71 is used for conveying the battery cell 200, and the radiographic detection mechanism 72 can detect the battery cell 200 by X-ray. When detecting, the radiographic detection mechanism 72 can scan the whole or part of the battery cell 200. Through the scanning imaging result, the impurities in the battery cell 200 and the internal defects of the battery cell 200 can be detected. After the detection of the radiographic detection mechanism 72 is completed, the battery cells 200 are sequentially stacked to form a stacked battery cell group 210, and the battery cell group 210 is placed on the second conveying mechanism 73. During the conveying of the second conveying mechanism 73, the tomographic detection mechanism 74 can scan the battery cell group 210 on the second conveying mechanism 73. Through the scanning imaging result, the alignment of the pole piece of each battery cell 200 of the battery cell group 210 and the welding of the pole piece can be detected, and the simultaneous detection of the defect conditions of multiple battery cells 200 can be realized in one detection of the tomographic detection mechanism 74.

[0179] A rotating device (not shown in FIG. 16) is arranged at the entrance section of the first conveying mechanism 71. The transfer device 600 clamps the tray 100 carrying the battery cell 200 and places the tray 100 on the first conveying surface of the first conveying mechanism 71. When the battery cell 200 is conveyed to the position corresponding to the radiographic detection mechanism 72, the radiographic detection mechanism 72 detects the battery cell 200 to obtain a scanning image of the battery cell 200. According to the scanning result, the impurities and internal defects of the battery cell 200 can be detected to determine whether the battery cell 200 meets the requirements.

[0180] A transfer device 600 is arranged between the outlet section of the first conveying mechanism 71 and the inlet section of the second conveying mechanism 73, the transfer device 600 clamps the tray 100 carrying the battery cell 200 on the first conveying surface and places the tray 100 on the second conveying surface of the second conveying mechanism 73, the transfer device 600 can sequentially stack the battery cells 200 to form the stacked battery cell group 210. When the battery cell group 210 is conveyed to the corresponding position of the tomographic imaging detection mechanism 74, the tomographic imaging detection mechanism 74 rotates around the side of the battery cell group 210, the movement surface of the tomographic imaging detection mechanism 74 is a horizontal surface parallel to the second conveying surface, and the scanning result of the tomographic imaging detection mechanism 74 is a side image of the battery cell group 210. According to the detection result, the alignment of the pole piece is detected to determine whether the battery cell 200 meets the requirements.

[0181] The outlet section of the second conveying mechanism 73 is provided with a transfer device (not shown in FIG. 16), after detection, the transfer device 600 clamps the tray 100 on the second conveying mechanism 73 and rotates the tray 100 to the next conveying line body for subsequent process operation.

[0182] Optionally, the ray imaging detection mechanism 72 comprises a first emitting unit 721 and a first receiving unit 722, the first emitting unit 721 and the first receiving unit 722 are oppositely arranged, the first emitting unit 721 can emit X-rays, and the received signals can be converted into images through the first receiving unit 722 to determine the internal defects of the battery cell 200. The first emitting unit 721 can be an X-ray machine, and the first receiving unit 722 can be a DR detector, a linear array detector, etc.

[0183] Optionally, the tomographic imaging detection mechanism 74 comprises a second emitting unit 741 and a second receiving unit 742, the second emitting unit 741 and the second receiving unit 742 are oppositely arranged, and the second emitting unit 741 and the second receiving unit 742 can reciprocate around the second conveying surface, that is, the tomographic imaging detection mechanism 74 can detect the battery cell 200 in the thickness direction of the battery cell group 210.

[0184] The ray imaging detection mechanism 72 detects various defects of the battery cell 200, for example, whether the battery cell 200 contains impurities and foreign matters, whether the pole piece of the battery cell 200 is wrinkled, folded or damaged, and whether the pole piece has welding defects.

[0185] The tomographic imaging detection mechanism 74 detects various defects of the battery cell group 210, for example, whether the pole piece of the battery cell 200 is aligned, whether the pole piece is folded, whether the pole group is extruded, and whether the pole piece has welding defects.

[0186] The detection efficiency of the ray imaging detection mechanism 72 is high, but the detection precision is low, and the detection effect on impurities, foreign matters and other defects in the battery cell 200 is good. The detection efficiency of the tomographic imaging detection mechanism 74 is low, but the detection precision is high, and the detection effect on defects such as whether the pole piece of the battery cell 200 is aligned and the pole piece is folded is good. Through the cooperation of the ray imaging detection mechanism 72 and the tomographic imaging detection mechanism 74, the detection precision and the detection efficiency are improved.

[0187] It can be understood that, according to the detection requirement, only the ray imaging detection mechanism 72 can be arranged to detect the battery cell 200, or only the tomographic imaging detection mechanism 74 can be arranged to detect the battery cell 200.

[0188] The tray 100 with the above structure can conveniently and quickly fix or loosen the battery cell 200, and the transfer device 600 can ensure the stability of clamping the tray 100. When a plurality of battery cells 200 are detected in batches, the detection equipment 700 can effectively improve the detection efficiency and the detection accuracy.

[0189] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any change or replacement made within the spirit and principles of the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A tray comprising: a tray plate configured to carry a battery cell; a limiting assembly comprising a base, a moving member and a mounting seat, the base is connected to the tray plate, the mounting seat is arranged on a side of the base away from the tray plate, the base and the mounting seat define a moving channel, the moving member is movably arranged in the moving channel, and the moving member is configured with a first connecting portion; and a pressing plate assembly comprising a pressing plate and a rotating member, the pressing plate is rotatably connected to the mounting seat through the rotating member, the pressing plate is operable to switch between a first position state and a second position state, and a side of the pressing plate facing the tray plate is provided with a second connecting portion, wherein, when the pressing plate is rotated to the first position, the moving member is moved to a locking position, the first connecting portion and the second connecting portion are connected to keep the pressing plate in the first position to press the battery cell, and when the moving member is moved to an unlocking position, the second connecting portion is separated from the first connecting portion, and the pressing plate can be rotated to the second position to release the battery cell. 2.The tray according to claim 1, wherein the base is provided with a first accommodating groove, the mounting seat is provided with a second accommodating groove, the first accommodating groove and the second accommodating groove are oppositely arranged, and the first accommodating groove and the second accommodating groove define the moving channel; at least part of the mounting seat is embedded in the first accommodating groove, the first accommodating groove has a first groove wall, the second accommodating groove has a second groove wall oppositely arranged with the first groove wall, the first groove wall is provided with a first opening, and the second groove wall is provided with a second opening communicated with the first opening; and the moving member moves in the moving channel in a direction perpendicular to the first opening and the second opening. 3.The tray according to claim 2, wherein the moving member comprises a force applying portion and a moving portion, the moving portion is configured with an accommodating groove, the first connecting portion is arranged on a groove wall surface of the accommodating groove, and the force applying portion is adapted to drive the moving portion to move in the moving channel; the mounting seat is provided with a through groove communicated with the second accommodating groove; and when the pressing plate is rotated to the first position, the second connecting portion is connected with the first connecting portion in the accommodating groove through the through groove.

4. The tray of claim 3, wherein, the moving member further comprises an elastic stretchable portion arranged on a side of the moving portion away from the force applying portion; when the elastic stretchable portion is in a first state, the moving portion abuts against a groove wall surface of the second groove wall, and the second connecting portion is adapted to be connected with the first connecting portion; and when the elastic stretchable portion is in a second state, the moving portion is separated from the groove wall surface of the second groove wall, and the second connecting portion is adapted to be separated from the first connecting portion, wherein, a pressure borne by the elastic stretchable portion in the second state is greater than a pressure borne by the elastic stretchable portion in the first state. 5.The tray according to claim 2, wherein the limiting assembly further comprises a connecting plate and a fastener; and The connecting plate is in abutment with the top of the base and the top of the mounting seat, and is connected with the base by the fastener.

6. The tray of any one of claims 1-5, wherein, The pressing plate assembly further comprises a torsion member; The torsion member is arranged on the rotating member, and a torsion arm of the torsion member is in abutment with the mounting seat; When the pressing plate rotates to the first position, the torsion member is in an energy storage state; And When the moving member moves to the unlocking position, the pressing plate is rotated towards the second position by the elastic force provided by the torsion member, and is kept in the second position.

7. The tray according to claim 6, wherein The top of the mounting seat is provided with a limiting groove, and the torsion arm of the torsion member is located at the limiting groove.

8. The tray of any one of claims 1-5, wherein, Further comprising a clamping member; At least two clamping members are arranged on opposite sides of the tray plate. The clamping member is provided with a clamping groove for accommodating a clamping part of a clamping device.

9. The tray of claim 8, wherein, Further comprising: A positioning member; The positioning member is arranged on a side of the clamping member away from the tray plate; The tray plate is provided with a positioning hole extending into the clamping member, and the positioning hole is coaxially arranged with the positioning member; and In the stacked state of the plurality of trays, in adjacent two of the trays, the positioning member of one of the trays is located in the positioning hole of the other of the trays.

10. The tray according to any one of claims 1-5, wherein At least two limiting assemblies are arranged on opposite sides of the tray plate, and a plurality of pressing plate assemblies are arranged in one-to-one correspondence with a plurality of limiting assemblies.

11. The tray according to any one of claims 1-5, 7 and 9, wherein The pressing plate comprises a hard layer and a soft layer arranged in abutment, the soft layer faces the tray plate, and the hard layer is located on a side of the soft layer away from the tray plate.

12. The tray according to any one of claims 1-5, 7 and 9, wherein The tray plate is a non-metal member.

13. A transfer device, comprising: The tray according to any one of claims 1-12; A clamping mechanism comprising two clamping jaws arranged in opposition for clamping the tray; And A transfer mechanism connected with the clamping mechanism for transferring the tray.

14. A detection device, comprising: The transfer device according to claim 13; And A detection device comprising a conveying mechanism and a detection mechanism, Wherein the transfer device is used for transferring the tray carrying the battery cell to the conveying mechanism, and the detection mechanism is used for detecting the battery cell carried by the tray on the conveying mechanism.

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