Tray, transfer device and detection equipment

Abstract

The utility model provides a tray, a transfer device and detection equipment, the tray comprises a supporting plate, a limiting assembly and a pressing plate assembly, and the supporting plate is used for bearing a battery cell; the limiting assembly comprises a base, a moving part and a mounting seat, a moving channel is defined by the base and the mounting seat, the moving part is movably arranged at the moving channel, and a first connecting part is constructed on the moving part; the pressing plate assembly comprises a pressing plate and a rotating part, the pressing plate is rotationally connected with the mounting base, the pressing plate can be switched between a first position state and a second position state, a second connecting part is arranged on the side, facing the supporting plate, of the pressing plate, the pressing plate rotates to the first position, the moving part moves to the locking position, and the first connecting part is connected with the second connecting part; the pressing plate is kept at the first position so as to press the battery cell; when the moving part moves to the unlocking position, the second connecting part is separated from the first connecting part, and the pressing plate can rotate to the second position to release the battery cell. According to the tray disclosed by the utility model, the battery cell can be conveniently and quickly pressed or loosened.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a pallet, a transfer device and detection equipment. Background Art

[0002] The battery cell is an important component of the battery. The performance of the battery cell directly affects the performance of the battery. The quality of the battery cell needs to be tested before assembly.

[0003] A single square battery cell is a soft and flat rectangular structure. During online testing, a tray is needed to support the battery cell. In the tray in the related art, the battery cell is usually placed on the tray, and the battery cell is clamped from two directions by a positioning mechanism or a limiting mechanism. The overall structure is complex, and the steps of fixing and loosening the battery cell are cumbersome and inconvenient to operate. In the related art, there is also a method of adsorbing the battery cell by a suction cup, and providing adsorption force to the suction cup through an air source to adsorb the battery cell on the suction cup. The structure is complex and the operation is inconvenient. Utility Model Content

[0004] In view of this, an embodiment of the utility model provides a tray, a transfer device and a detection device, which are used to solve the problem that the existing tray for carrying battery cells has a complex structure and is inconvenient to operate when fixing or releasing the battery cells.

[0005] In a first aspect, an embodiment of the present utility model provides a tray, comprising:

[0006] A support plate for carrying the battery cells;

[0007] A position limiting assembly, comprising a base, a moving member and a mounting seat, wherein the base is connected to the support plate, the mounting seat is arranged on a side of the base away from the support plate, 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 configured with a first connecting portion; and

[0008] The pressing plate assembly comprises a pressing plate and a rotating member, wherein the pressing plate is rotatably connected to the mounting seat through the rotating member, the pressing plate can be operably switched between a first position state and a second position state, and a second connecting portion is provided on a side of the pressing plate facing the supporting plate.

[0009] Among them, the pressure plate rotates to the first position, the movable part moves to the locking position, and the first connecting part and the second connecting part are connected, so that the pressure plate remains in the first position to compress the battery cell; the movable part moves to the unlocking position, the second connecting part is separated from the first connecting part, and the pressure plate can be rotated to the second position to release the battery cell.

[0010] According to an embodiment of the utility model, 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 arranged opposite to each other, and the first accommodating groove and the second accommodating groove define the moving channel;

[0011] At least part of the mounting seat is embedded in the first receiving groove, the first receiving groove has a first groove wall, the second receiving groove has a second groove wall arranged opposite to the first groove wall, the first groove wall has a first opening, and the second groove wall has a second opening connected to the first opening; and

[0012] The moving member moves in the moving channel along a direction perpendicular to the first opening and the second opening.

[0013] According to an embodiment of the utility model, the moving member includes a force-applying portion and a moving portion, the moving portion is configured with a receiving groove, the first connecting portion is arranged on a groove wall surface of the receiving groove, and the force-applying portion is suitable for driving the moving portion to move in the moving channel;

[0014] The mounting seat is provided with a through slot, and the through slot is communicated with the second containing slot; and

[0015] The pressing plate rotates to the first position, and the second connecting portion passes through the through slot and is connected to the first connecting portion in the accommodating slot.

[0016] According to an embodiment of the utility model, the moving member further comprises an elastic telescopic portion, and the elastic telescopic portion is arranged on a side of the moving portion away from the force-applying portion;

[0017] The elastically retractable portion is in a first state, the movable portion is in contact with a groove wall surface of the second groove wall, and the second connecting portion is suitable for connecting with the first connecting portion; and

[0018] The elastic stretchable portion is in the second state, the moving portion is separated from the groove wall surface of the second groove wall, and the second connecting portion is suitable for being separated from the first connecting portion.

[0019] Wherein, the pressure borne by the elastic stretch portion in the second state is greater than the pressure borne by the elastic stretch portion in the first state.

[0020] According to an embodiment of the utility model, the limiting assembly further includes a connecting plate and a fastener; and

[0021] The connecting plate is arranged to fit the top of the base and the top of the mounting seat, and the connecting plate is connected to the base via the fastener.

[0022] According to an embodiment of the utility model, the pressure plate assembly further includes a torsion member;

[0023] The torsion member is arranged on the rotating member, and the torsion arm of the torsion member abuts against the mounting seat;

[0024] The pressure plate rotates to the first position, and the torsion member is in an energy storage state; and

[0025] The moving member moves to the unlocking position, and the elastic force provided by the torsion member causes the pressing plate to rotate toward the second position and keeps the pressing plate at the second position.

[0026] According to an embodiment of the utility model, a limiting groove is provided on the top of the mounting seat, and the torque arm of the torque member is located at the limiting groove.

[0027] According to an embodiment of the utility model, it also includes: a clamping member;

[0028] At least two of the clamping members are disposed on opposite sides of the support plate; and

[0029] The clamping piece is provided with a clamping groove, and the clamping groove is used to accommodate the clamping part of the clamping device.

[0030] According to an embodiment of the utility model, it also includes: a positioning member;

[0031] The positioning member is arranged on a side of the clamping member away from the support plate;

[0032] The support plate is provided with a positioning hole, and the positioning hole extends into the clamping member, and the positioning hole is coaxially arranged with the positioning member; and

[0033] When a plurality of the trays are stacked, the positioning member of one of the two adjacent trays is located in the positioning hole of the other tray.

[0034] According to an embodiment of the utility model, at least two of the limiting assemblies are arranged on two opposite sides of the supporting plate, and the plurality of pressing plate assemblies and the plurality of limiting assemblies are arranged in one-to-one correspondence.

[0035] According to an embodiment of the utility model, the pressing plate includes a hard layer and a soft layer which are arranged in close contact with each other, the soft layer faces the supporting plate, and the hard layer is located on a side of the soft layer which is away from the supporting plate.

[0036] According to an embodiment of the utility model, the support plate is a non-metallic part.

[0037] In a second aspect, an embodiment of the present utility model provides a transfer device, comprising:

[0038] A pallet as described above;

[0039] A clamping mechanism, comprising two clamping claws arranged opposite to each other, for clamping the tray; and

[0040] A transfer mechanism is connected to the clamping mechanism and is used for transferring the pallet.

[0041] In a third aspect, an embodiment of the present utility model provides a detection device, comprising:

[0042] A transfer device as described above; and

[0043] The detection device comprises a transmission mechanism and a detection mechanism,

[0044] The transfer device is used to transfer the tray carrying the battery cells to the conveying mechanism, and the detection mechanism is used to detect the battery cells carried by the tray on the conveying mechanism.

[0045] The pallet, transfer device and detection equipment provided by the embodiments of the utility model can at least achieve the following technical effects: through the downward and upward movements of the pressure plate, the pressure plate can be flexibly switched between the first position and the second position; through the switching of the moving part between the locked position and the unlocked position, the pressure plate can be stably maintained in the first position state or the second position state to achieve the compression of the battery cell or the removal of the battery cell; this pallet can conveniently and quickly achieve the compression or release of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The above and other purposes, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0047] Figure 1 The structure diagram of the tray according to the embodiment of the utility model is schematically shown;

[0048] Figure 2 A schematic diagram of a tray pressing a battery cell according to an embodiment of the utility model is schematically shown;

[0049] Figure 3 A schematic diagram of releasing a battery cell from a tray according to an embodiment of the utility model is schematically shown;

[0050] Figure 4 The structural diagram of the support plate according to the embodiment of the utility model is schematically shown;

[0051] Figure 5 The schematic diagram of the structure of the pressing plate assembly according to the embodiment of the utility model is shown;

[0052] Figure 6A schematic diagram schematically shows the connection between the first connecting portion and the second connecting portion according to an embodiment of the utility model;

[0053] Figure 7 One of the schematic diagrams schematically shows a pressing plate in a first position according to an embodiment of the utility model;

[0054] Figure 8 The second schematic diagram schematically shows the pressing plate in the first position according to the embodiment of the utility model;

[0055] Fig. 9 One of the schematic diagrams schematically shows a pressing plate in a second position according to an embodiment of the utility model;

[0056] Fig.10 The second schematic diagram schematically shows the pressing plate in the second position according to the embodiment of the utility model;

[0057] Fig.11 One of the structural schematic diagrams of the limit assembly according to an embodiment of the utility model is schematically shown;

[0058] Fig.12 The second schematic diagram of the structure of the limit assembly according to the embodiment of the utility model is schematically shown;

[0059] Fig.13 The exploded schematic diagram of the limiting assembly according to the embodiment of the utility model is schematically shown;

[0060] Fig.14 The schematic diagram of the structure of the clamping member and the positioning member according to the embodiment of the utility model is schematically shown;

[0061] Fig.15 A schematic diagram of a transfer device clamping a pallet according to an embodiment of the utility model is schematically shown;

[0062] Fig.16 The schematic diagram of the structure of the detection device according to the embodiment of the utility model is shown;

[0063] Reference numerals:

[0064] 100: tray; 200: battery cell; 210: battery cell group;

[0065] 10: support plate; 11: groove;

[0066] 20: limit assembly; 21: moving member; 211: first connecting portion; 212: force-applying portion; 213: moving portion; 214: elastic telescopic portion; 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: limit groove; 24: connecting plate;

[0067] 30: pressing plate assembly; 31: pressing plate; 311: second connecting portion; 312: soft layer; 313: hard layer; 32: rotating member; 33: torsion member;

[0068] 40: clamping piece; 41: clamping groove; 50: positioning piece;

[0069] 600: transfer device; 61: clamping mechanism; 62: transfer mechanism;

[0070] 700: detection device; 71: first transmission mechanism; 72: radiation imaging detection mechanism; 721: first transmitting unit; 722: first receiving unit; 73: second transmission mechanism; 74: tomographic imaging detection mechanism; 741: second transmitting unit; 742: second receiving unit. DETAILED DESCRIPTION

[0071] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0072] The terms used herein are only for describing specific embodiments and are not intended to limit the present invention. The terms "include", "comprises", etc. used herein indicate the existence of the features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0073] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0074] Combine the following Figures 1 to 14 A tray 100 provided by an embodiment of the present invention is described.

[0075] like Figures 1 to 12 As shown, the tray 100 provided by the embodiment of the utility model includes a support plate 10, a limiting assembly 20 and a pressure plate assembly 30, and the support plate 10 is used to carry the battery cell 200. The limiting assembly 20 includes a base 22, a moving member 21 and a mounting seat 23, the base 22 is connected to the support plate 10, and the mounting seat 23 is arranged on the side of the base 22 away from the support plate 10, the base 22 and the mounting seat 23 define a moving channel, the moving member 21 is movably arranged at the moving channel, and the moving member 21 is configured with a first connecting portion 211; the pressure plate assembly 30 includes a pressure plate 31 and a rotating member 32, the pressure plate 31 is rotatably connected to the mounting seat 23 through the rotating member 32, the pressure plate 31 is operably switched between the first position state and the second position state, and the side of the pressure plate 31 facing the support plate 10 is provided with a second connecting portion 311.

[0076] Among them, the pressure plate 31 rotates to the first position, the movable part 21 moves to the locking position, and the first connecting part 211 and the second connecting part 311 are connected, so that the pressure plate 31 remains in the first position to press the battery cell 200; the movable part 21 moves to the unlocking position, the second connecting part 311 is separated from the first connecting part 211, and the pressure plate 31 can be rotated to the second position to release the battery cell 200.

[0077] Specifically, the support plate 10 is a plate-shaped body, and the support plate 10 is used to carry the battery cell 200. The length and width of the support plate 10 are adapted to the size of the carried battery cell 200. The support plate 10 has a length direction and a width direction. Along the width direction of the support plate 10, the support plate 10 has two components symmetrically distributed about a vertical plane perpendicular to the support plate 10. This vertical plane is defined as the center plane of the support plate 10, and the direction of the center plane of the support plate 10 is consistent with the length direction.

[0078] The pallet 10 is a non-metallic part, and the pallet 10 is made of materials such as plastic, rubber, and carbon fiber. The plastic may be POM (polyoxymethylene) plastic, ABS (acrylonitrile-butadiene-styrene copolymer) plastic, and the like. For example, the pallet 10 may be made of polyoxymethylene material, which has high strength, hardness, and wear resistance. When the pallet 100 moves with the conveyor line, relative friction occurs between the pallet 10 and the conveyor line. The polyoxymethylene material has excellent wear resistance, so that the pallet 10 has good wear resistance, which is beneficial to improving the service life of the pallet 100.

[0079] The pallet 10 is a non-metallic part. During the inspection of the battery cells 200 on the pallet 10, the non-metallic material has a weak absorption capacity for radiation, which minimizes the impact of the pallet 10 on the inspection of the battery cells 200 and ensures the accuracy of the inspection. In addition, the pallet 10 is a non-metallic part, which is conducive to the lightweight of the tray 100.

[0080] Furthermore, if Figure 4 As shown, a groove 11 is formed on the pallet 10 by the end surface of the pallet 10 being concave toward the center surface of the pallet 10, and the groove width and groove depth of the groove 11 are not specifically limited. The battery cell 200 is placed on the pallet 10, and the part of the battery cell 200 corresponding to the groove 11 is located outside the pallet 10. When the battery cell 200 needs to be removed from the pallet 10, the working tool can take the battery cell 200 at the groove 11, which facilitates the separation of the battery cell 200 from the pallet 10. The groove 11 provides a suitable operating space for placing or taking the battery cell 200, which is conducive to the convenience of operation.

[0081] The limiting assembly 20 is disposed on the pallet 10, and the limiting assembly 20 is 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 a first side and a second side opposite to each other, and the position of the limiting assembly 20 on the pallet 10 is set according to the number of the limiting assembly 20.

[0082] When there is one limit assembly 20, the limit assembly 20 is located in the middle of the support plate 10. When there are two limit assemblies 20, the two limit assemblies 20 are located in the middle of the support plate 10, and the two limit assemblies 20 are symmetrically arranged about the center plane; or the two limit assemblies 20 are staggeredly arranged on the first side and the second side of the support plate 10.

[0083] like Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, the limit assembly 20 includes a base 22, a moving member 21 and a mounting seat 23, the base 22 can be connected to the support plate 10 by a screw connection, the mounting seat 23 is used to install the pressure plate assembly 30, and the mounting seat 23 can be connected to the base 22 by a screw connection. The base 22 is configured with a first accommodating cavity, and the mounting seat 23 is configured with a second accommodating cavity. The first accommodating cavity and the second accommodating cavity are enclosed to form a moving channel, and the moving member 21 can move in the moving channel in a direction perpendicular to the center plane. The moving member 21 can also move in the moving channel in a direction parallel to the center plane. Below for ease of description, the moving member 21 moving in the moving channel in a direction perpendicular to the center plane is taken as an example for explanation.

[0084] The moving member 21 moves in the moving channel toward the direction close to the center plane, and the moving member 21 can move to the unlocking position; the moving member 21 moves in the moving channel toward the direction away from the center plane, and the moving member 21 can move to the locking position. A thrust can be applied to the moving member 21 by a working tool to move the moving member 21 to the unlocking position, and a pulling force can be applied to the moving member 21 by a working tool to move the moving member 21 to the locking position. The moving member 21 can also move from the unlocking position to the locking position by means of a rebound force.

[0085] like Figure 5 and Figure 6 As shown, the moving member 21 is provided with a first connection portion 211, and the pressing plate 31 is provided with a second connection portion 311 on the side facing the supporting plate 10. The first connection portion 211 moves closer to or farther from the second connection portion 311 as the moving member 21 moves. The first connection portion 211 and the second connection portion 311 can be connected by hooking, magnetic attraction, or the like.

[0086] For example, the first connection part 211 and the second connection part 311 are both magnets, the moving part 21 is in the locking position, the first connection part 211 and the second connection part 311 are close to each other and are adsorbed and connected together by magnetic attraction.

[0087] For example, Figure 6 As shown, the first connection part 211 and the second connection part 311 are both hook structures, the movable member 21 is in the locked position, the first connection part 211 and the second connection part 311 are close to each other, and the hook end of the first connection part 211 and the hook end of the second connection part 311 are hooked together.

[0088] The pressing plate 31 is roughly rectangular, and one end of the pressing plate 31 is rotatably connected to the mounting seat 23 through a rotating member 32. For example, the mounting seat 23 is provided with a first axial hole, and the pressing plate 31 is provided with a second axial hole. The first axial hole and the second axial hole are coaxially arranged, and the axial directions of the first axial hole and the second axial hole are parallel to the length direction of the support plate 10. The rotating member 32 includes a rotating shaft, which passes through the first axial hole and the second axial hole to realize the rotatable connection between the pressing plate 31 and the mounting seat 23.

[0089] like Figure 2 and Figure 3 As shown, the pressing plate 31 can switch 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 support plate 10, the battery cell 200 is placed on the support plate 10, and the battery cell 200 is located between the support plate 10 and the pressing plate 31. When the pressing plate 31 is in the second position, the pressing plate 31 is perpendicular to the support plate 10, and the battery cell 200 can be removed from the support plate 10, or the battery cell 200 to be tested can be placed on the support plate 10.

[0090] The pressing plate 31 rotates downward to the first position, the moving member 21 moves to the locking position, the first connection portion 211 and the second connection portion 311 are connected, so that the pressing plate 31 is stably maintained in the first position, and the pressing plate 31 presses the battery cell 200 against the tray 10 to prevent the battery cell 200 from shaking during the movement of the tray 100. The moving member 21 moves to the unlocking position, the first connection portion 211 and the second connection portion 311 are separated, and the pressing plate 31 rotates upward to the second position, the pressing plate 31 is away from the tray 10, and the battery cell 200 can be easily removed from the tray 10.

[0091] The downward turning movement and the upward turning movement of the pressing plate 31 can be operated by an operator or an operating tool, and the moving movement of the moving member 21 can be operated by an operator or an operating tool.

[0092] The following is a description of the use process of the tray 100.

[0093] The battery cell 200 to be tested is placed on the support plate 10, and a downward flipping force is applied to the pressure plate 31, so that the pressure plate 31 flips down to the first position. At the same time, a pulling force perpendicular to the center plane is applied to the movable member 21, and the movable member 21 moves to the locking position. The first connecting portion 211 and the second connecting portion 311 are connected together, so that the pressure plate 31 is stably maintained in the first position, thereby firmly pressing the battery cell 200 on the support plate 10.

[0094] After the battery cell 200 to be inspected is fixed on the tray 100, the tray 100 carrying the battery cell 200 can be placed on the conveyor line of the inspection equipment by a robot, transfer equipment or an operator, and the tray 100 moves along the conveyor line to the inspection channel of the inspection equipment for inspection.

[0095] After the battery cell 200 is tested, a thrust is applied to the moving member 21 toward one side of the center plane, and the moving member 21 moves to the unlocking position, the first connecting portion 211 and the second connecting portion 311 are separated, and an upward turning force is applied to the pressing plate 31, and the pressing plate 31 turns up to the second position, thereby removing the tested battery cell 200. Further, the next battery cell 200 to be tested is placed on the support plate 10, and the above steps are repeated to test the next battery cell 200.

[0096] By applying a flipping force to the pressure plate 31 facing the side of the support plate 10 or away from the side of the support plate 10, the pressure plate 31 can be easily flipped to the first position or the second position, and by applying an external force to the movable member 21, the movable member 21 can be flexibly switched between the locked position and the unlocked position. The movable member 21 moves to the locked position, and the first connecting portion 211 and the second connecting portion 311 are connected, so that the pressure plate 31 is stably maintained in the first position, thereby achieving compression of the battery cell 200; the movable member 21 moves to the unlocked position, and the first connecting portion 211 and the second connecting portion 311 are separated, and the pressure plate 31 flips to the second position, thereby facilitating the taking and placing of the battery cell 200.

[0097] In the embodiment of the utility model, the pressing plate 31 can be flexibly switched between the first position and the second position by the downward and upward movements of the pressing plate 31, and the pressing plate 31 can be stably maintained in the first position state or the second position state by the switching of the moving part 21 between the locked position and the unlocked position, so as to realize the pressing of the battery cell 200 or the removal of the battery cell 200. This tray 100 can realize the pressing or loosening of the battery cell 200 conveniently and quickly.

[0098] like Fig.11 , Fig.12 and Fig.13 As shown, in an optional embodiment, the base 22 is provided with a first accommodating groove 221, and the mounting seat 23 is provided with a second accommodating groove 231. The first accommodating groove 221 and the second accommodating groove 231 are arranged opposite to each other, and the first accommodating groove 221 and the second accommodating groove 231 define a moving channel; at least a portion of the mounting seat 23 is embedded in the first accommodating groove 221, the first accommodating groove 221 has a first groove wall 222, and the second accommodating groove 231 has a second groove wall 232 arranged opposite to the first groove wall 222, the first groove wall 222 has a first opening 2221, and the second groove wall 232 has a second opening 2321 connected to the first opening 2221; the moving member 21 moves in the moving channel along a direction perpendicular to the first opening 2221 and the second opening 2321.

[0099] Specifically, the base 22 and the mounting seat 23 may both be rectangular, the length direction of the base 22 is consistent with the length direction of the support 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 .

[0100] A first accommodating groove 221 is provided on the side of the base 22 facing the mounting seat 23, and a second accommodating groove 231 is provided on the side of the mounting seat 23 facing the base 22. The transverse cross-section of the first accommodating groove 221 is larger than the transverse cross-section of the second accommodating groove 231. The first accommodating groove 221 is suitable for accommodating the mounting seat 23, and the second accommodating groove 231 is suitable for accommodating the moving member 21.

[0101] The first receiving groove 221 has a first groove bottom surface and a plurality of side groove walls connected to the first groove bottom surface, the second receiving groove 231 has a second groove bottom surface and a plurality of side groove walls connected to the second groove bottom surface, and the second groove bottom surface and the first groove bottom surface are arranged opposite to each other.

[0102] The mounting seat 23 is placed in the first receiving groove 221 , and the circumferential surface of the mounting seat 23 is in contact with or close to the side groove wall of the first receiving groove 221 . The first receiving groove 221 limits the mounting seat 23 in the length direction and the width direction.

[0103] 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 a moving channel, and the main body of the moving member 21 is embedded in the moving channel. The bottom surface of the moving member 21 is in contact with or close to the bottom surface of the first groove, and the top surface of the moving member 21 is in contact with or close to the bottom surface of the second groove.

[0104] Along the width direction of the base 22, a side groove wall on the base 22 that is away from the support plate 10 is defined as a first groove wall 222; along the width direction of the mounting seat 23, a side groove wall on the mounting seat 23 that is away from the support plate 10 is defined as a second groove wall 232. A first opening 2221 is provided on the first groove wall 222, and a second opening 2321 is provided on the second groove wall 232. The first opening 2221 and the second opening 2321 are connected, and part of the moving member 21 is located at the first opening 2221 and the second opening 2321. Both the first opening 2221 and the second opening 2321 are U-shaped openings, which facilitate the assembly of the base 22, the moving member 21 and the mounting seat 23.

[0105] The first opening 2221 and the second opening 2321 form a working space for applying external force to the moving member 21, and the central axis direction of the first opening 2221 and the second opening 2321 is perpendicular to the central plane of the support plate 10. The moving member 21 can move in a direction perpendicular to the central plane toward or away from the central plane at the first opening 2221 and the second opening 2321.

[0106] A pushing force or a pulling force is applied to the moving member 21 along a direction perpendicular to the center plane on the outer side of the limiting assembly 20 so as to move the moving member 21 to an unlocking position or a locking position, which is beneficial to the convenience of operation.

[0107] Optionally, the first opening 2221 may also be provided on a side groove wall on the base 22 in the same width direction thereof, and the second opening 2321 may also be provided on a side groove wall on the mounting base 23 in the same width direction thereof. The central axis directions of the first opening 2221 and the second opening 2321 are parallel to the central plane of the support plate 10. The moving member 21 can move to a locked position or an unlocked position along a direction parallel to the central plane at the first opening 2221 and the second opening 2321.

[0108] The following is a description of the assembly process of the base 22 , the moving member 21 and the mounting seat 23 .

[0109] First, the moving member 21 is placed in the first receiving groove 221 of the base 22 , and the position of the moving member 21 is adjusted so that the moving member 21 and the first opening 2221 are aligned.

[0110] Then place the mounting seat 23 in the first receiving groove 221. During the placement process, adjust the positions of the movable member 21 and the mounting seat 23 so that the movable member 21 is located in the space surrounded by the bottom surface of the first groove, the bottom surface of the second groove, the side groove wall surface of the first receiving groove 221 and multiple side groove wall surfaces of the second receiving groove 231.

[0111] Finally, the base 22 and the mounting base 23 are fixed, and the base 22 and the mounting base 23 can be connected by screwing. For example, threaded holes are provided on the base 22 and the mounting base 23, and screws are screwed into the threaded holes of the two to achieve the fixed connection between the base 22 and the mounting base 23.

[0112] The entire assembly process is easy to operate. In addition, the base 22 and the mounting base 23 are connected by screw connection, which is conducive to the convenience of installation and disassembly.

[0113] A moving channel for the moving member 21 is defined by the first accommodating groove 221 and the second accommodating groove 231, which is beneficial to the flexibility of the movement of the moving member 21. At the same time, the first groove bottom surface, the second groove bottom surface and the side groove wall surface play a limiting role on the moving member 21, which is beneficial to the smooth movement of the moving member 21.

[0114] In an embodiment of the utility model, the mounting seat 23 is embedded in the first accommodating groove 221, and the first accommodating groove 221 and the second accommodating groove 231 enclose a moving channel. The moving member 21 moves in the moving 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 member 21 and the mounting seat 23, and is also beneficial to the smooth movement of the moving member 21.

[0115] like Fig.11 , Fig.12 and Fig.13As shown, in an optional embodiment, the movable member 21 includes a force-applying portion 212 and a movable portion 213, the movable portion 213 is configured with a receiving groove, the first connecting portion 211 is arranged on the groove wall of the receiving groove, and the force-applying portion 212 is suitable for driving the movable portion 213 to move in the moving channel; the mounting seat 23 is provided with a through groove 233, and the through groove 233 is connected to the second receiving groove 231; the pressure plate 31 rotates to the first position, and the second connecting portion 311 passes through the through groove 233 and is connected to the first connecting portion 211 in the receiving groove.

[0116] Specifically, the moving member 21 includes a force-applying portion 212 and a moving portion 213 connected to the force-applying portion 212, the force-applying portion 212 is located at the first opening 2221 and the second opening 2321, and the moving portion 213 is located in the moving channel. The force-applying portion 212 can be a plate-shaped body, which is convenient for the working tool or the operator to apply a push or pull force to it.

[0117] Along the length direction of the limiting assembly 20, 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. The force-applying portion 212 is connected to the moving portion 213 through the connecting portion, and the size of the force-applying portion 212 matches the size of the first opening 2221, and the size of the connecting portion matches the size of the second opening 2321. It can be understood that the sizes of the moving portion 213 and the force-applying portion 212 are both larger than the size of the second opening 2321, and an external force is applied to the force-applying portion 212 to prevent the force-applying portion 212 from entering the moving channel, and at the same time prevent the moving portion 213 from sliding out of the moving channel.

[0118] The movable 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 movable part 213 moves to the locked position, the first end face of the movable part 213 abuts against the second groove wall surface of the mounting seat 23; when the movable part 213 moves to the unlocked position, the first end face of the movable part 213 is separated from the second groove wall surface of the mounting seat 23.

[0119] The moving part 213 is configured with a receiving groove, for example, a bottom plate and a plurality of side plates enclose the receiving groove, and the first connecting part 211 is located on a groove wall surface of the receiving groove. The receiving groove constitutes a space for the second connecting part 311 to enter, and the receiving groove is enclosed by a plurality of side plates, so that the first connecting part 211 has sufficient strength to prevent the first connecting part 211 from being deformed due to long-term stress.

[0120] The mounting seat 23 is provided with a through slot 233 , which may be a square-shaped through slot or a U-shaped through slot. The through slot 233 is connected to the second accommodating slot 231 , and the through slot 233 is used for the second connecting portion 311 to pass through.

[0121] During the process of the pressing plate 31 rotating from the second position to the first position, the second connecting portion 311 on the pressing plate 31 gradually passes through the through slot 233 on the mounting seat 23 and enters the receiving slot of the movable portion 213, until the pressing plate 31 flips down to the first position, and the second connecting portion 311 passes through the through slot 233, enters the receiving slot, and is connected to the first connecting portion 211.

[0122] A fork hole may be provided on the force-applying portion 212, and the fork-picking portion of the working tool is inserted into the fork hole, and a thrust is applied to the force-applying portion 212, so that the movable portion 213 moves toward the direction close to the center plane, and the movable portion 213 moves to the unlocked position, the first connecting portion 211 and the second connecting portion 311 are separated, and the pressure plate 31 can be flipped up to the second position under the flipping force. A downward flipping force is applied to the pressure plate 31, and a pulling force is applied to the force-applying portion 212, so that the movable portion 213 moves toward the direction away from the center plane, and the movable portion 213 moves to the locked position, the first connecting portion 211 and the second connecting portion 311 are connected, and the pressure plate 31 is stably maintained in the first position.

[0123] The moving portion 213 is configured with a receiving groove, and the first connecting portion 211 is disposed on the groove wall of the receiving groove to ensure that the first connecting portion 211 has sufficient strength, thereby ensuring the stability of the connection between the first connecting portion 211 and the second connecting portion 311 .

[0124] The second connection part 311 passes through the through slot 233 and is connected to the first connection part 211. The through slot 233 plays a certain guiding role on the second connection part 311. When the pressing plate 31 is turned down, the second connection part 311 smoothly enters the receiving slot under the guidance of the through slot 233; when the pressing plate 31 is turned up, the second connection part 311 is separated from the mounting seat 23 under the guidance of the through slot 233.

[0125] In an embodiment of the utility model, external force is applied to the force-applying portion 212, so that the movable portion 213 can flexibly switch between the locked position and the unlocked position, which is beneficial to the convenience of operation; the first connecting portion 211 is arranged on the groove wall surface of the accommodating groove, so that the first connecting portion 211 has sufficient strength, thereby ensuring the stability of the connection between the first connecting portion 211 and the second connecting portion 311; the through groove 233 plays a certain guiding role in the movement of the second connecting portion 311, thereby ensuring the reliability of the flipping process of the pressure plate 31.

[0126] like Fig.13As shown, in an optional embodiment, the movable member 21 also includes an elastic telescopic portion 214, which is arranged on the side of the movable portion 213 away from the force-applying portion 212; the elastic telescopic portion 214 is in a first state, the movable portion 213 is in contact with the groove wall surface of the second groove wall 232, and the second connecting portion 311 is suitable for connecting with the first connecting portion 211; the elastic telescopic portion 214 is in a second state, the movable portion 213 is separated from the groove wall surface of the second groove wall 232, and the second connecting portion 311 is suitable for separating from the first connecting portion 211, wherein the pressure borne by the elastic telescopic portion 214 in the second state is greater than the pressure borne by the elastic telescopic portion 214 in the first state.

[0127] Specifically, the second end surface of the moving portion 213 is provided with an elastic telescopic portion 214, and the elastic telescopic portion 214 may 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 intervals on the second end surface of the moving portion 213. One end of the compression spring abuts against the moving portion 213, and the other end of the compression spring abuts against the groove wall surface of the first accommodating groove 221.

[0128] Optionally, a first receiving groove is formed in a recessed manner at the second end surface of the moving portion 213, a second receiving groove is formed in a recessed manner at the groove wall surface of the first receiving groove 221, the first receiving groove and the second receiving groove are coaxially arranged, and the two ends of the compression spring are respectively located in the first receiving groove and the first receiving groove. The first receiving groove and the first receiving groove play a limiting role in the compression deformation of the compression spring.

[0129] Optionally, the elastic expansion portion 214 is a spring sheet, one end of the spring sheet abuts against the second end surface of the moving portion 213 , and the other end of the spring sheet abuts against the groove wall surface of the first accommodating groove 221 .

[0130] The elastic expansion part 214 has a first state and a second state. The first state is an initial state. In the initial state, the pressure on the elastic expansion part 214 is zero or small. The second state is a compressed state. The pressure on the elastic expansion part 214 in the second state is greater than the pressure in the first state.

[0131] The elastic expansion part 214 is in the first state, the first end face 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 expansion part 214 abut against the second end face of the moving part 213 and the groove wall surface of the base 22. At this time, the moving part 213 is in the locked position, that is, the first connecting part 211 is in the locked position, ensuring that the moving part 213 will not shake, and ensuring that the pressing plate 31 is stably maintained in the first position.

[0132] When the pressure plate 31 needs to be flipped up to the second position, a thrust is applied to the force-applying portion 212 toward the center plane, and the elastic telescopic portion 214 is in the second state after being compressed. The first end face of the movable portion 213 is separated from the groove wall surface of the second groove wall 232 of the mounting seat 23, and the second connecting portion 311 is separated from the first connecting portion 211.

[0133] When the pressure plate 31 needs to be flipped down to the first position, there is no need to apply external force to the force-applying part 212. During the movement of the second connection part 311 toward the first connection part 211, the second connection part 311 applies an extrusion force to the first connection part 211, and the extrusion force is transmitted to the elastic telescopic part 214, causing the elastic telescopic part 214 to be compressed and deformed, and the movable part 213 moves toward the unlocking position accordingly; after the extrusion force disappears, the movable part 213 moves to the locking position based on the rebound force of the elastic telescopic part 214.

[0134] like Figure 6 As shown, for example, the end of the first connection part 211 is in a barb shape, the first connection part 211 has a first inclined surface and a first lap surface connected to the first inclined surface, and the end of the second connection part 311 is also in a barb shape, the second connection part 311 has a second inclined surface and a second lap surface connected to the second inclined surface.

[0135] In the process of the second connecting part 311 passing through the through groove 233 and moving toward the accommodating groove, the second inclined surface of the second connecting part 311 contacts the first inclined surface, and the extrusion force applied by the second connecting part 311 to the first connecting part 211 causes the movable part 21 to move toward the side close to the center plane until the second overlapping surface of the second connecting part 311 moves below the first overlapping surface of the first connecting part 211, and the extrusion force applied by the second connecting part 311 to the first connecting part 211 disappears.

[0136] At this time, the elastic telescopic part 214 returns to the first state based on the rebound force, and the rebound force of the elastic telescopic part 214 causes the movable part 213 to move to the locking position. At this time, the first lap joint surface and the second lap joint surface are attached together, and the first lap joint surface is located above the second lap joint surface, thereby realizing a stable connection between the first connection part 211 and the second connection part 311, so that the pressure plate 31 is stably maintained in the first position.

[0137] In an embodiment of the utility model, an elastic telescopic portion 214 is arranged between the second end face of the movable portion 213 and the groove wall surface of the base 22, and the elastic telescopic portion 214 is in the first state, and the two ends of the elastic telescopic portion 214 are respectively abutted against the base 22 and the movable portion 213, so that the movable portion 213 is stably maintained in the locked position, which is beneficial to ensure the stability of the pressure plate 31 in the first position; during the downward flipping of the pressure plate 31, based on the squeezing force between the second connecting portion 311 and the first connecting portion 211, the elastic telescopic portion 214 is transformed from the first state to the second state, and based on the rebound force of the elastic telescopic portion 214, it is transformed from the second state to the first state, and finally the connection between the second connecting portion 311 and the first connecting portion 211 is realized, and there is no need to apply external force to the force-applying portion 212 during the downward flipping process, which is beneficial to the convenience of operation.

[0138] like Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, in an optional embodiment, the limiting assembly 20 further includes a connecting plate 24 and fasteners; the connecting plate 24 is arranged to fit 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 via fasteners.

[0139] Specifically, the mounting seat 23 is placed in the first receiving groove 221 , and at least a portion of the top surface of the mounting seat 23 is flush with the top surface of the base 22 .

[0140] Optionally, a through hole is formed on the connecting plate 24, a first threaded hole is formed on the base 22, a second threaded hole is formed on 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 fitted with the top surface of the base 22 and the top surface of the mounting seat 23, and the screw is screwed into the through hole, the first threaded hole and the second threaded hole in sequence to achieve the connection between the connecting plate 24, the base 22 and the mounting seat 23.

[0141] This connection method effectively reduces the number of connecting parts between the support plate 10 and the limiting assembly 20, which is beneficial to the convenience of installation and disassembly.

[0142] like Figure 5 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, in an optional embodiment, the pressure plate assembly 30 also includes a torque member 33; the torque member 33 is arranged on the rotating member 32, and the torque arm of the torque member 33 abuts against the mounting seat 23; the pressure plate 31 rotates to the first position, and the torque member 33 is in an energy storage state; the moving member 21 moves to the unlocking position, and the elastic force provided by the torque member 33 causes the pressure plate 31 to rotate toward the second position, and keeps the pressure plate 31 in the second position.

[0143] Specifically, the pressure plate assembly 30 further includes a torsion member 33 , which may be a torsion spring, and the rotating member 32 is a rotating shaft.

[0144] For example, two first rotating connection parts are formed on the top of the mounting seat 23, a first shaft hole is formed on the first rotating connection part, and the two first shaft holes are coaxially arranged. An avoidance opening and a second rotating connection part located on both sides of the avoidance opening are provided at one end of the pressing plate 31, a second shaft hole is formed on the second rotating connection part, and the two second shaft holes are coaxially arranged, and the rotating shaft passes through the first shaft hole and the second shaft hole.

[0145] The torsion spring is sleeved on the rotating shaft. The torsion spring stores energy under pressure. The energy released by the torsion spring provides a turning force for the pressure plate 31 to turn upward.

[0146] The connection process of the pressure plate 31, the rotating shaft, the torsion spring and the mounting seat 23 is as follows: first, the pressure plate 31 is placed in the area between the two first rotating connection parts, and the rotating shaft passes through the first axial hole and the second axial hole on one end of the pressure plate 31 and the mounting seat 23 and the second axial hole and the first axial hole on the other end of the pressure plate 31 and the mounting seat 23 in sequence. During the process of the rotating shaft passing through the first axial hole and the second axial hole, the torsion spring is put on the rotating shaft, and the assembly process is convenient.

[0147] The torsion arm of the torsion spring abuts against the top surface of the mounting seat 23 , the pressing plate 31 flips down to the first position, the second connecting portion 311 is connected to the first connecting portion 211 , and the torsion spring stores energy.

[0148] A thrust is applied to the force-applying portion 212, the movable member 21 moves to the unlocking position, the second connecting portion 311 is separated from the first connecting portion 211, and the elastic force of the torsion spring causes the pressure plate 31 to rotate toward the side away from the support plate 10 until the pressure plate 31 rotates to the second position and remains stably in the second position.

[0149] During the process of the pressing plate 31 turning up, the pressing plate 31 can be turned up to the second position by only applying a thrust to the moving member 21 without applying a turning force to the pressing plate 31, which is conducive to the convenience of operation. In addition, the torsion spring enables the pressing plate 31 to be stably maintained in the second position, which is conducive to further improving the stability of the pressing plate 31 in the second position.

[0150] During the process of the pressure plate 31 flipping down, only a flipping force needs to be applied to the pressure plate 31, and no external force needs to be applied to the movable part 21. The movable part 213 moves under the extrusion force applied by the second connection part 311 to the first connection part 211, thereby realizing the connection between the second connection part 311 and the first connection part 211. The elastic telescopic part 214 enables the pressure plate 31 to be stably maintained in the first position.

[0151] In addition, when the pressing plate 31 is turned down, the torsion spring can provide the pressing plate 31 with an appropriate buffer force to prevent the battery cell 200 from being crushed when the pressing plate 31 is turned down quickly to the first position.

[0152] like Fig.11 and Fig.12 As shown, in an optional embodiment, a limiting groove 234 is provided on the top of the mounting seat 23 , and the torque arm of the torque member 33 is located at the limiting groove 234 .

[0153] 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 the number of the torsion springs. There is one torsion spring, which is sleeved in the middle area of ​​the rotating shaft. The limiting groove 234 corresponds to the position of the torsion spring, and the torque arm of the torsion spring is located at the limiting groove 234. When the pressing plate 31 is turned down or up, the torque arm of the torsion spring moves slightly along the extension direction of the limiting groove 234, and at the same time, the torque arm of the torsion spring abuts against the groove wall of the limiting groove 234. The limiting groove 234 limits the torque arm of the torsion spring, which is beneficial to the smooth rotation of the pressing plate 31.

[0154] There are two torsion springs, both of which are arranged close to the second rotating connection portion, and 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 torsion springs can be more than two, and multiple torsion springs are spaced and sleeved on the rotating shaft.

[0155] In the embodiment of the present utility model, the torque arm of the torsion spring is located in the limiting groove 234 , which is beneficial to improving the stability of the rotation of the pressing plate 31 .

[0156] like Figure 1 , Figure 2 , Figure 3 and Fig.14 As shown, in an optional embodiment, the pallet 100 further includes a clamping member 40; at least two clamping members 40 are disposed on opposite sides of the pallet 10; the clamping member 40 is provided with a clamping groove 41, and the clamping groove 41 is used to accommodate a clamping portion of a clamping device.

[0157] Specifically, the pallet 100 further includes a clamping member 40, and the number of the clamping members 40 may be two, four, or more. When the number of the clamping members 40 is four, two clamping members 40 are disposed at intervals on a first side of the pallet 10 along the length direction of the pallet 10, and the other two clamping members 40 are disposed at intervals on a second side of the pallet 10 along the length direction of the pallet 10. The two clamping members 40 on the same side are located on opposite sides of the limiting assembly 20.

[0158] The clamping member 40 may be a square body, and the clamping member 40 may be connected to the support plate 10 by screw connection. A clamping groove 41 is provided on the side of the clamping member 40 away from the support plate 10, and the size of the clamping groove 41 is adapted to the clamping part of the clamping device.

[0159] Taking four clamping members 40 as an example, the clamping device includes two clamping jaws arranged opposite to each other, and two clamping parts are arranged on each clamping jaw at intervals.

[0160] The pressing plate 31 presses the battery cell 200 onto the support plate 10. At this time, the two clamping claws of the clamping device approach each other until the four clamping parts respectively abut against the four clamping grooves 41, thereby firmly clamping the tray 100 and further transferring the tray 100 to the corresponding conveyor line.

[0161] The clamping member 40 is provided on the pallet 10, and the pallet 100 is firmly clamped by the clamping device, which effectively prevents the pallet 100 from slipping during transportation, which is beneficial to the safety during transportation. In addition, the clamping member 40 cooperates with the clamping device to realize the transportation of the pallet 100 and the battery cell 200 without the participation of operators, which is beneficial to improving the work efficiency of the production line.

[0162] like Figure 1 , Figure 2 , Figure 3 and Fig.14 As shown, in an optional embodiment, the pallet 100 also includes a positioning member 50; the positioning member 50 is arranged on the side of the clamping member 40 facing away from the pallet 10; the pallet 10 is provided with a positioning hole, and the positioning hole extends into the clamping member 40, and the positioning hole is coaxially arranged with the positioning member 50; when multiple pallets 100 are stacked, among two adjacent pallets 100, the positioning member 50 of one pallet 100 is located in the positioning hole of the other pallet 100.

[0163] Specifically, a positioning member 50 is disposed on the top of the clamping member 40 . The positioning member 50 may be a columnar body. The positioning member 50 may be connected to the clamping member 40 by welding or screwing.

[0164] The support plate 10 is provided with a positioning hole, which extends into the interior of the clamping member 40 , and the diameter of the positioning hole matches the diameter of the positioning member 50 , and the positioning member 50 is coaxially arranged with the positioning hole. It is understandable that the top surface of the clamping member 40 is not lower than the top surface of the mounting seat 23 .

[0165] When multiple pallets 100 are stacked in the height direction, the positioning piece 50 of the next pallet 100 is located in the positioning hole of the previous pallet 100. During the transportation of multiple pallets 100, the multiple pallets 100 are not prone to relative movement, which is beneficial to the stacking and transportation of multiple pallets 100.

[0166] like Figure 1 , Figure 2 and Figure 3 As shown, in an optional embodiment, at least two limiting assemblies 20 are disposed on opposite sides of the support plate 10 , and a plurality of pressure plate assemblies 30 are disposed in one-to-one correspondence with the plurality of limiting assemblies 20 .

[0167] Specifically, the number of the limit assemblies 20 is an even number, for example, two limit assemblies 20 are respectively arranged on the first side and the second side of the pallet 10, and the two limit assemblies 20 are symmetrically arranged about the center plane of the pallet 10. The two limit assemblies 20 can also be staggered on the first side and the second side of the pallet 10.

[0168] The number of the pressing plate assemblies 30 and the limiting assemblies 20 is the same, and the battery cells 200 are stably fixed by using a plurality of pressing plate assemblies 30 and a plurality of limiting assemblies 20 .

[0169] As the tray 100 moves along the conveyor line, multiple pressure plate assemblies 30 ensure that the battery cells 200 are not easily moved. As the tray 100 carrying the battery cells 200 passes through the inspection channel, the position and angle of the battery cells 200 are not easily changed, thereby achieving accurate inspection of the battery cells 200.

[0170] like Figure 5 As shown, in an optional embodiment, the pressing plate 31 includes a hard layer 313 and a soft layer 312 that are arranged in close contact with each other, the soft layer 312 faces the support plate 10, and the hard layer 313 is located on the side of the soft layer 312 away from the support plate 10.

[0171] Specifically, the pressing plate 31 is composed of a hard layer 313 and a soft layer 312 . 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, or other flexible materials.

[0172] The hard layer 313 and the soft layer 312 can be connected by bonding. When the pressing plate 31 is turned down to the first position, the hard layer 313 can provide a certain pressure to press the battery cell 200 to prevent the battery cell 200 from moving during transportation, and the soft layer 312 is in direct contact with the battery cell 200 to avoid damage to the battery cell 200 during the pressing process.

[0173] In addition, the pressing plate 31 is a non-metallic part, which is beneficial to reducing the impact on the detection of the battery cells 200 and is also beneficial to the lightweight of the tray 100 .

[0174] Furthermore, the limiting assembly 20 includes a base 22, a moving member 21 and a mounting seat 23, and part or all of the base 22, the moving member 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 beneficial to reduce the impact on the detection of the battery cell 200 and is beneficial to the lightweight of the tray 100.

[0175] The clamping member 40 and the positioning member 50 may also be made of non-metallic materials, for example, POM (polyoxymethylene) material, ABS (acrylonitrile-butadiene-styrene copolymer) material, carbon fiber material, etc. This is beneficial to reduce the impact on the detection of the battery cell 200 and also beneficial to the lightweight of the tray 100.

[0176] like Fig.15 As shown, the embodiment of the utility model further provides a transfer device 600, which includes 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.

[0177] The structure of the tray 100 is as described above and will not be repeated here. The moving end of the transfer mechanism 62 is connected to the clamping mechanism 61, which includes two clamping claws, each of which has two clamping parts, and the driving mechanism can drive the two clamping parts on both sides to move closer to or away from each other.

[0178] The tray 100 carrying the battery cells 200 moves along the production line to a position of the entrance section conveyor body close to the detection device, and the driving mechanism drives the four clamping parts to respectively contact the clamping grooves 41 on the first side and the second side of the pallet 10 to clamp the tray 100.

[0179] The transfer mechanism 62 can perform rotation and translation in multiple dimensions, and the clamping mechanism 61 clamps the tray 100, and the tray 100 is placed on the entrance section conveyor line through the rotation and translation of the transfer mechanism 62. Furthermore, the position and angle of the tray 100 can be adjusted through the rotation and translation of the transfer mechanism 62, thereby adjusting the position and angle of the battery cell 200 on the tray 100, and the tray 100 moves to the detection channel along the entrance section conveyor line to detect the battery cell 200.

[0180] After the inspection is completed, the pallet 100 moves to the exit section conveyor line body, where a transfer device 600 is also provided. The driving mechanism drives the four clamping parts to approach each other to clamp the pallet 100, and further through the rotation and translation action of the transfer mechanism 62, the pallet 100 is transferred from the exit section conveyor line body to the next conveyor line body.

[0181] The structure of the tray 100 enables the battery cells 200 to be fixed or released conveniently and quickly. The clamping grooves 41 provided on the tray 100 are conducive to the stability of the clamping mechanism 61 in clamping the tray 100, thereby helping to improve the transportation efficiency of the battery cells 200 while ensuring the reliability of the transportation process.

[0182] like Fig.16As shown, an embodiment of the utility model further provides a detection device 700 , which includes a detection device and the above-mentioned transfer device 600 .

[0183] Optionally, the detection device includes a first conveying mechanism 71 , a radiographic detection mechanism 72 , a second conveying mechanism 73 and a tomographic detection mechanism 74 .

[0184] The first conveying mechanism 71 is used to convey the battery cell 200. The radiographic imaging detection mechanism 72 can detect the battery cell 200 through X-rays. During the detection, the radiographic imaging detection mechanism 72 can scan the entire or a part of the battery cell 200. Through the scanning imaging results, the impurities in the battery cell 200 and the internal defects of the battery cell 200 can be detected. After the detection by the radiographic imaging detection mechanism 72 is completed, the battery cells 200 are stacked in sequence so that the battery cells 200 form a stacked battery cell group 210. The battery cell group 210 is placed on the second conveying mechanism 73. During the conveying process of the second conveying mechanism 73, the tomographic imaging detection mechanism 74 can scan the battery cell group 210 on the second conveying mechanism 73. Through the scanning imaging results, the alignment of the pole pieces and the welding of the pole pieces of each battery cell 200 in the battery cell group 210 can be detected, and the defects of multiple battery cells 200 can be detected simultaneously in one detection by the tomographic imaging detection mechanism 74.

[0185] A rotating device ( Fig.16 (not shown), the transfer device 600 clamps the tray 100 carrying the battery cells 200 and places the tray 100 on the first conveying surface of the first conveying mechanism 71. When the battery cells 200 are conveyed to the position corresponding to the radiographic imaging detection mechanism 72, the radiographic imaging detection mechanism 72 detects the battery cells 200 to obtain a scanned image of the battery cells 200. According to the scan results, the impurities and internal defects of the battery cells 200 can be detected to determine whether the battery cells 200 meet the requirements.

[0186] A transfer device 600 is provided between the exit section of the first conveying mechanism 71 and the entrance section of the second conveying mechanism 73. The transfer device 600 clamps the tray 100 carrying the battery cells 200 on the first conveying surface and places it on the second conveying surface of the second conveying mechanism 73. The transfer device 600 can stack the battery cells 200 in sequence, so that the battery cells 200 form a stacked battery cell group 210. When the battery cell group 210 is conveyed to the position corresponding to the tomographic imaging detection mechanism 74, the tomographic imaging detection mechanism 74 rotates around the battery cell group 210. The moving surface of the tomographic imaging detection mechanism 74 is a horizontal plane parallel to the second conveying surface. The scanning result of the tomographic imaging detection mechanism 74 is a side image of the battery cell group 210. The alignment of the pole pieces is detected according to the detection result to determine whether the battery cell 200 meets the requirements.

[0187] The outlet section of the second conveying mechanism 73 is provided with a transfer device ( Fig.16 (not shown), after the inspection is completed, the transfer device 600 clamps the tray 100 on the second conveying mechanism 73 and rotates the tray 100 to the next conveyor line body for subsequent process operations.

[0188] Optionally, the radiographic detection mechanism 72 includes a first transmitting unit 721 and a first receiving unit 722, which are arranged opposite to each other, and the first transmitting unit 721 can transmit X-rays, and the first receiving unit 722 receives and processes the signals, and can convert the received signals into images to judge the internal defects of the battery cell 200. The first transmitting unit 721 can be an X-ray machine, and the first receiving unit 722 can be a DR detector, a linear array detector, etc.

[0189] Optionally, the tomographic imaging detection mechanism 74 includes a second emitting unit 741 and a second receiving unit 742, and the second emitting unit 741 and the second receiving unit 742 are arranged relative to each other. 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 cells 200 in the thickness direction of the battery cell 200 group.

[0190] The radiographic inspection mechanism 72 performs various defect inspections on the battery cell 200 , for example, whether the battery cell 200 contains impurities or foreign matter, whether the pole piece of the battery cell 200 is wrinkled, folded or damaged, and whether the pole piece has welding defects.

[0191] The tomography detection mechanism 74 performs various defect detections on the battery cell group 210 , for example, whether the pole pieces in the battery cell 200 are aligned, whether the pole pieces are folded, whether there is extrusion between the pole groups, and whether there are welding defects on the pole pieces.

[0192] The detection efficiency of the X-ray imaging detection mechanism 72 is high, but the detection accuracy is low. It has a better detection effect on defects such as impurities and foreign matter inside the battery cell 200. The detection efficiency of the tomography detection mechanism 74 is low, but the detection accuracy is high, especially for defects such as whether the pole pieces of the battery cell 200 are aligned and the pole pieces are folded. By using the X-ray imaging detection mechanism 72 in conjunction with the tomography detection mechanism 74, the detection efficiency is improved while the detection accuracy is improved.

[0193] It is understandable that, according to the detection requirements, only the X-ray imaging detection mechanism 72 may be provided to detect the battery cell 200 , or only the tomographic imaging detection mechanism 74 may be provided to detect the battery cell 200 .

[0194] The tray 100 with the above structure can conveniently and quickly fix or loosen the battery cell 200, the transfer device 600 can ensure the stability of the clamping tray 100, and when performing batch testing on multiple battery cells 200, the testing equipment 700 can effectively improve the testing efficiency and accuracy.

[0195] The above is only a specific embodiment of the utility model, but the protection scope of the present application is not limited thereto. Any changes or substitutions made within the spirit and principle of the utility model should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A pallet, comprising: A support plate for carrying the battery cells; A position limiting assembly, comprising a base, a moving member and a mounting seat, wherein the base is connected to the support plate, the mounting seat is arranged on a side of the base away from the support plate, 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 configured with a first connecting portion; and The pressing plate assembly comprises a pressing plate and a rotating member, wherein the pressing plate is rotatably connected to the mounting seat through the rotating member, the pressing plate can be operably switched between a first position state and a second position state, and a second connecting portion is provided on a side of the pressing plate facing the supporting plate. Among them, the pressure plate rotates to the first position, the movable part moves to the locking position, and the first connecting part and the second connecting part are connected, so that the pressure plate remains in the first position to compress the battery cell; the movable part moves to the unlocking position, the second connecting part is separated from the first connecting part, and the pressure plate can be rotated to the second position to release the battery cell.

2. The pallet according to claim 1, wherein: The base is provided with a first receiving groove, and the mounting seat is provided with a second receiving groove, the first receiving groove and the second receiving groove are arranged opposite to each other, and the first receiving groove and the second receiving groove define the moving channel; At least part of the mounting seat is embedded in the first receiving groove, the first receiving groove has a first groove wall, the second receiving groove has a second groove wall arranged opposite to the first groove wall, the first groove wall has a first opening, and the second groove wall has a second opening connected to the first opening; and The moving member moves in the moving channel along a direction perpendicular to the first opening and the second opening.

3. The pallet according to claim 2, wherein: The moving member includes a force-applying portion and a moving portion, the moving portion is configured with a receiving groove, the first connecting portion is arranged on a groove wall surface of the receiving 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 slot, and the through slot is communicated with the second containing slot; and The pressing plate rotates to the first position, and the second connecting portion passes through the through slot and is connected to the first connecting portion in the accommodating slot.

4. The pallet according to claim 3, wherein: The moving part further comprises an elastic telescopic portion, and the elastic telescopic portion is arranged on a side of the moving part away from the force-applying portion; The elastically retractable portion is in a first state, the movable portion is in contact with a groove wall surface of the second groove wall, and the second connecting portion is suitable for connecting with the first connecting portion; and The elastic stretchable portion is in the second state, the moving portion is separated from the groove wall surface of the second groove wall, and the second connecting portion is suitable for being separated from the first connecting portion. Wherein, the pressure borne by the elastic stretch portion in the second state is greater than the pressure borne by the elastic stretch portion in the first state.

5. The pallet according to claim 2, wherein: The limiting assembly further includes a connecting plate and a fastener; and The connecting plate is arranged to fit the top of the base and the top of the mounting seat, and the connecting plate is connected to the base via the fastener.

6. The pallet according to any one of claims 1 to 5, wherein: The pressure plate assembly also includes a torsion member; The torsion member is arranged on the rotating member, and the torsion arm of the torsion member abuts against the mounting seat; The pressing plate rotates to the first position, and the torsion member is in an energy storage state; as well as The moving member moves to the unlocking position, and the elastic force provided by the torsion member causes the pressing plate to rotate toward the second position and keeps the pressing plate at the second position.

7. The pallet according to claim 6, wherein: A limiting groove is arranged on the top of the mounting seat, and the torque arm of the torque member is located at the limiting groove.

8. The pallet according to any one of claims 1 to 5, wherein: Also includes: a clamping piece; At least two of the clamping members are disposed on opposite sides of the support plate; and The clamping piece is provided with a clamping groove, and the clamping groove is used to accommodate the clamping part of the clamping device.

9. The pallet according to claim 8, wherein: Also includes: Positioning parts; The positioning member is arranged on a side of the clamping member away from the support plate; The support plate is provided with a positioning hole, and the positioning hole extends into the clamping member, and the positioning hole is coaxially arranged with the positioning member; and When a plurality of the trays are stacked, the positioning member of one of the two adjacent trays is located in the positioning hole of the other tray.

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

11. A pallet according to any one of claims 1 to 5, 7 and 9, wherein: The pressing plate comprises a hard layer and a soft layer which are arranged in close contact with each other, wherein the soft layer faces the supporting plate, and the hard layer is located on a side of the soft layer which is away from the supporting plate.

12. A pallet according to any one of claims 1 to 5, 7 and 9, wherein: The support plate is a non-metallic part.

13. A transfer device, characterized in that: include: A pallet as claimed in any one of claims 1 to 12; A clamping mechanism, comprising two clamping claws arranged opposite to each other, for clamping the tray; as well as A transfer mechanism is connected to the clamping mechanism and is used for transferring the pallet.

14. A detection device comprising: The transfer device according to claim 13; as well as The detection device comprises a transmission mechanism and a detection mechanism, The transfer device is used to transfer the tray carrying the battery cells to the conveying mechanism, and the detection mechanism is used to detect the battery cells carried by the tray on the conveying mechanism.

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