Tray, transfer device and detection equipment

Abstract

The embodiment of the utility model provides a tray, a transfer device and detection equipment, the tray comprises a supporting plate, a pressing plate assembly and a magnetic attraction assembly, and the supporting plate is used for bearing a battery cell; the pressing plate assembly comprises a connecting seat and a pressing plate, the connecting seat is connected to the supporting plate, the pressing plate is rotatably connected to the connecting seat, and the pressing plate is operably switched between a first position state and a second position state; the magnetic attraction assembly is arranged on the connecting base and used for keeping the pressing plate in the first position state or the second position state. The pressing plate comprises a first contact part and a second contact part, the pressing plate is in a first position state, and the first contact part abuts against the battery cell so as to press the battery cell on the supporting plate; and when the pressing plate is in the second position state, the second contact part is propped against the connecting seat to release the battery cell. According to the tray disclosed by the utility model, the pressing plate can be stably kept in the first position state or the second position state through the magnetic attraction force between the magnetic attraction assembly and the pressing plate, so that a battery cell can be conveniently and quickly pressed or loosened.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection equipment technical field especially, relate to a tray, transfer device and detection equipment. BACKGROUND

[0002] 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.

[0003] The single square electric core is soft and flat cuboid structure, and a tray is needed to support the electric core during online detection. In the related art, the electric core is placed 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. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model provides a tray, a transfer device and a detection equipment to solve the problem of complex structure of the existing tray for carrying the electric core and inconvenient operation when fixing or releasing the electric core.

[0005] In the first aspect, the utility model provides a tray, which comprises:

[0006] A supporting plate is used to support the electric core.

[0007] A pressing plate assembly comprises a connecting seat and a pressing plate. The connecting seat is connected to the supporting plate, and the pressing plate is rotatably connected to the connecting seat. The pressing plate is operable to switch between a first position state and a second position state.

[0008] A magnetic attraction assembly is arranged on the connecting seat and is used to keep the pressing plate in the first position state or the second position state.

[0009] The pressing plate comprises a first contact part and a second contact part. When the pressing plate is in the first position state, the first contact part is in contact with the electric core to press the electric core tightly on the supporting plate. When the pressing plate is in the second position state, the second contact part is in contact with the connecting seat to release the electric core.

[0010] According to the utility model, the connecting seat comprises a base and a rotating connecting part. The base is arranged on the edge of the supporting plate, and the two rotating connecting parts are arranged on the base. The pressing plate is located between the two rotating connecting parts.

[0011] The rotating connecting part comprises a connecting part and a rotating part, the connecting part is connected to the base, and one of the connecting part and the pressing plate is in rotating connection with the rotating part.

[0012] According to the embodiment of the present application, the base is provided with a first accommodating groove on the side away from the supporting plate, the first accommodating groove is used for accommodating the second contact part, the top surface of the base forms a first abutting surface, and the groove bottom surface of the first accommodating groove forms a second abutting surface.

[0013] The pressing plate further comprises a transition part, two ends of the transition part are connected with the first contact part and the second contact part respectively, and the transition part is in rotating connection with the rotating part.

[0014] The pressing plate is in the first position state, the first contact part abuts against the first abutting surface, the pressing plate is in the second position state, and the second contact part abuts against the second abutting surface.

[0015] According to the embodiment of the present application, the base is provided with a second accommodating groove on the side away from the supporting plate, the second accommodating groove is formed by recessing from one side surface of the base away from the supporting plate to one side surface of the base facing the supporting plate, and the second accommodating groove is used for accommodating the clamping part.

[0016] According to the embodiment of the present application, the magnetic attraction assembly comprises a first magnetic attraction unit and a second magnetic attraction unit, the first magnetic attraction unit is arranged on the top of the connecting seat, and the second magnetic attraction unit is arranged on the side of the connecting seat.

[0017] The pressing plate comprises a non-metal layer and a third magnetic attraction unit embedded in the non-metal layer.

[0018] The magnetic attraction force between the first magnetic attraction unit and the third magnetic attraction unit enables the pressing plate to be kept in the first position state, and the magnetic attraction force between the second magnetic attraction unit and the third magnetic attraction unit enables the pressing plate to be kept in the second position state.

[0019] According to the embodiment of the present application, the first magnetic attraction unit and the second magnetic attraction unit are magnetic pieces, and the third magnetic attraction unit is a metal piece.

[0020] The first magnetic attraction unit and the second magnetic attraction unit are metal pieces, and the third magnetic attraction unit is a magnetic piece.

[0021] According to the embodiment of the present application, the first magnetic attraction unit and / or the second magnetic attraction unit is embedded in the connecting seat.

[0022] According to the embodiment of the present application, further comprising a limiting assembly.

[0023] The limiting assembly comprises a first limiting piece and a second limiting piece, and the first limiting piece and the second limiting piece are arranged at two ends of the supporting plate respectively.

[0024] The first limiting piece and the second limiting piece are used for contacting two end faces opposite to the battery cell.

[0025] According to the embodiment of the present application, the limiting assembly further comprises a positioning piece.

[0026] The positioning piece is arranged in the connecting seat.

[0027] The supporting plate is provided with a positioning hole, and the positioning hole extends into the connecting seat, and the positioning hole and the positioning piece are coaxially arranged.

[0028] In the state of stacking of the plurality of tray layers, the positioning piece of one of the two adjacent trays is located in the positioning hole of the other tray.

[0029] According to the embodiment of the present application, at least two pressing plate assemblies are arranged on opposite sides of the supporting plate, and a plurality of magnetic attraction assemblies are arranged in one-to-one correspondence with the plurality of pressing plate assemblies.

[0030] According to the embodiment of the present application, the supporting plate is a non-metal piece.

[0031] In a second aspect, the embodiment of the present application provides a transfer device, comprising:

[0032] The tray as described above;

[0033] The clamping mechanism comprises two clamping parts arranged oppositely and used for clamping the tray.

[0034] The transfer mechanism is connected with the clamping mechanism and used for transferring the tray.

[0035] In a third aspect, the embodiment of the present application provides a detection device, comprising:

[0036] The transfer device as described above; and

[0037] The detection device comprises a conveying mechanism and a detection mechanism,

[0038] 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.

[0039] The tray, the transfer device and the detection equipment provided by the embodiment of the utility model can at least realize the following technical effects: through the downward turning action and the upward turning action of the pressing plate, the pressing plate can be switched flexibly between the first position and the second position, through the magnetic attraction force between the magnetic attraction assembly and the pressing plate, the pressing plate can be stably kept in the first position state or the second position state, so as to realize the pressing or 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

[0040] The above and other objects, features and advantages of the utility model will become more apparent from the following description of the utility model embodiments with reference to the accompanying drawings, in which:

[0041] Figure 1 The structure schematic view of the tray according to the embodiment of the utility model is schematically shown;

[0042] Figure 2 The schematic view of the tray pressing battery cell according to the embodiment of the utility model is schematically shown;

[0043] Figure 3 The schematic view of the tray loosening battery cell according to the embodiment of the utility model is schematically shown;

[0044] Figure 4 The structure schematic view of the tray according to the embodiment of the utility model is schematically shown;

[0045] Figure 5 The structure schematic view of the pressing plate according to the embodiment of the utility model is schematically shown;

[0046] Figure 6 The side view of the pressing plate according to the embodiment of the utility model is schematically shown;

[0047] Figure 7 The position schematic view of the third magnetic attraction unit in the pressing plate according to the embodiment of the utility model is schematically shown;

[0048] Figure 8 The schematic view of the pressing plate in the first position state according to the embodiment of the utility model is schematically shown;

[0049] Figure 9 The schematic view of the pressing plate in the second position state according to the embodiment of the utility model is schematically shown;

[0050] Figure 10 The structure schematic view of the connecting seat according to the embodiment of the utility model is schematically shown;

[0051] Figure 11 The front view of the connecting seat according to the embodiment of the utility model is schematically shown;

[0052] Figure 12 schematically shows a top view of the connecting seat according to an embodiment of the present application;

[0053] Figure 13 schematically shows a structural schematic view of the base according to an embodiment of the present application;

[0054] Figure 14 schematically shows a structural schematic view of the rotating connecting part according to an embodiment of the present application;

[0055] Figure 15 schematically shows a schematic view of the transfer device clamping the tray according to an embodiment of the present application;

[0056] Figure 16 schematically shows a structural schematic view of the detection equipment according to an embodiment of the present application;

[0057] Reference signs:

[0058] 100: tray; 200: battery cell; 210: battery cell group;

[0059] 1: tray plate; 11: groove;

[0060] 2: pressing plate assembly; 21: connecting seat; 211: base; 2111: first accommodating groove; 2112: second accommodating groove; 212: rotating connecting part; 2121: connecting part; 2122: rotating part; 2123: limiting plate; 22: pressing plate; 221: first contact part; 222: second contact part; 223: transition part; 224: third magnetic attraction unit;

[0061] 31: first magnetic attraction unit; 32: second magnetic attraction unit; 41: first limiting piece; 42: second limiting piece; 5: positioning piece;

[0062] 600: transfer device; 61: clamping mechanism; 62: transfer mechanism;

[0063] 700: detection equipment; 71: first conveying mechanism; 72: ray imaging detection mechanism; 721: first emitting unit; 722: first receiving unit; 73: second conveying mechanism; 74: tomographic imaging detection mechanism; 741: second emitting unit; 742: second receiving unit. DETAILED DESCRIPTION

[0064] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0065] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0066] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0067] The following is combined with Figures 1 to 14 The tray 100 provided in the embodiments of this utility model is described.

[0068] like Figures 1 to 6 As shown, the tray 100 provided in the embodiment of this utility model includes a tray 1, a pressure plate assembly 2, and a magnetic suction assembly. The tray 1 is used to carry the battery cell 200. The pressure plate assembly 2 includes a connecting seat 21 and a pressure plate 22. The connecting seat 21 is connected to the tray 1, and the pressure plate 22 is rotatably connected to the connecting seat 21. The pressure plate 22 can be operably switched between a first position state and a second position state. The magnetic suction assembly is disposed on the connecting seat 21 to keep the pressure plate 22 in the first position state or the second position state. For example, the pressure plate 22 includes a first contact portion 221 and a second contact portion 222. When the pressure plate 22 is in the first position state, the first contact portion 221 abuts against the battery cell 200 to press the battery cell 200 tightly against the tray 1. When the pressure plate 22 is in the second position state, the second contact portion 222 abuts against the connecting seat 21 to release the battery cell 200.

[0069] Specifically, the tray 1 is a plate-shaped body, the tray 1 is used to carry the battery cell 200, and the length and width dimensions of the tray 1 are adapted to the dimensions of the battery cell 200 carried. The tray 1 has a length direction and a width direction. Along the width direction of the tray 1, the tray 1 has two component parts symmetrically distributed about a vertical plane perpendicular to the tray 1, and the vertical plane is defined as the center plane of the tray 1, and the direction in which the center plane of the tray 1 is located is consistent with the length direction.

[0070] The tray 1 is a non-metal part, and the tray 1 is made of plastic, rubber, carbon fiber or the like. For example, the tray 1 can be made of polyformaldehyde material, which has high strength, hardness and wear resistance. During the movement of the tray 100 along the conveying line body, the tray 1 is relatively rubbed with the conveying line body, and the polyformaldehyde material has excellent wear resistance, so that the tray 1 has good wear resistance, which is beneficial to improve the service life of the tray 100.

[0071] The tray 1 is a non-metal part, and the tray 1 is made of plastic, rubber, carbon fiber or the like. For example, the tray 1 can be made of polyformaldehyde material, which has high strength, hardness and wear resistance. During the movement of the tray 100 along the conveying line body, the tray 1 is relatively rubbed with the conveying line body, and the polyformaldehyde material has excellent wear resistance, so that the tray 1 has good wear resistance, which is beneficial to improve the service life of the tray 100.

[0072] Further, as shown in Figure 4 The tray 1 is recessed to form a groove 11 in the direction from the end face of the tray 1 to the center plane of the tray 1. The groove width and groove depth of the groove 11 are not specifically limited. When the battery cell 200 is placed on the tray 1, the part of the battery cell 200 corresponding to the groove 11 is located outside the tray 1. When the battery cell 200 is taken off from the tray 1, the work tool can take the battery cell 200 at the groove 11, which facilitates the separation of the battery cell 200 and the tray 1. The groove 11 provides a suitable operation space for placing or taking the battery cell 200, which is beneficial to the convenience of operation.

[0073] The pressing plate assembly 2 is arranged on the tray 1, and the number of the pressing plate assembly 2 is one, two, four or more, for example, the number of the pressing plate assembly 2 is an even number. Along the width direction of the tray 1, the tray 1 has opposite first and second sides, and the position of the pressing plate assembly 2 on the tray 1 is set according to the number of the pressing plate assembly 2.

[0074] When there is one pressure plate assembly 2, it is located in the middle of the tray 1. When there are two pressure plate assemblies 2, they are located in the middle of the tray 1 and are symmetrically arranged about the center plane; or the two pressure plate assemblies 2 are staggered on the first and second sides of the tray 1. When there are four pressure plate assemblies 2, they are spaced apart on the first side of the tray 1 and spaced apart on the second side of the tray 1, with the two pressure plate assemblies 2 on the first side and the two pressure plate assemblies 2 on the second side being symmetrically arranged about the center plane.

[0075] The pressure plate assembly 2 includes a connecting seat 21 and a pressure plate 22. The connecting seat 21 can be connected to the support plate 1 by screwing, and the pressure plate 22 is rotatably connected to the connecting seat 21. For example, each side of the pressure plate 22 is provided with a rotating shaft, which is rotatably connected to the connecting seat 21. The rotation of the rotating shaft realizes the rotation of the pressure plate 22.

[0076] The pressure plate 22 can switch between a first position and a second position. In the first position, the pressure plate 22 is parallel to the tray 1, and the battery cell 200 is placed on the tray 1, with the battery cell 200 located between the tray 1 and the pressure plate 22. In the second position, the pressure plate 22 is perpendicular to the tray 1, allowing the battery cell 200 to be removed from the tray 1 or placed on the tray 1.

[0077] like Figure 5 , Figure 6 and Figure 7 As shown, the pressure plate 22 is generally rectangular. Along its length, the pressure plate 22 includes a first contact portion 221 and a second contact portion 222, with the length of the first contact portion 221 being greater than the length of the second contact portion 222. In the first position, the pressure plate 22 has the first contact portion 221 in contact with the battery cell 200, pressing the battery cell 200 firmly onto the tray 1 to prevent the battery cell 200 from shaking during tray 100 movement. In the second position, the pressure plate 22 has the second contact portion 222 in contact with the connecting seat 21, and the first contact portion 221 is away from the tray 1, allowing for convenient removal and removal of the battery cell 200 from the tray 1.

[0078] A magnetic suction assembly is disposed on the connector 21. The magnetic suction assembly can be a magnet, electromagnet, magnetohydrodynamic fluid, etc. When the pressure plate 22 is flipped downward to the first position, a magnetic attraction force is generated between the magnetic suction assembly and the first contact portion 221, so that the pressure plate 22 is stably held in the first position and can press the battery cell 200. When the pressure plate 22 is flipped upward to the second position, a magnetic attraction force is generated between the magnetic suction assembly and the second contact portion 222, so that the pressure plate 22 is stably held in the second position, so as to remove the battery cell 200 that has been tested or place the battery cell 200 to be tested.

[0079] The downward and upward movements of the pressing plate 22 can be operated by an operator or a mechanical hand. The following describes the use process of the tray 100.

[0080] The battery cell 200 to be detected is placed on the tray 1, and a pressure is applied to the first contact portion 221 of the pressing plate 22 toward the center surface side, so that the pressing plate 22 is turned down to the first position. The magnetic attraction force between the magnetic attraction assembly and the first contact portion 221 enables the pressing plate 22 to be stably kept in the first position, and further enables the battery cell 200 to be stably pressed on the tray 1.

[0081] 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 a conveying line body of a detection device by a mechanical hand, a transfer device or an operator, and the tray 100 moves with the conveying line body into a detection channel of the detection device for detection.

[0082] After the detection of the battery cell 200 is completed, a pressure is applied to the second contact portion 222 of the pressing plate 22 toward the center surface side, so that the pressing plate 22 is turned up to the second position. The magnetic attraction force between the magnetic attraction assembly and the second contact portion 222 enables the pressing plate 22 to be stably kept in 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 1, and the above steps are repeated to detect the next battery cell 200.

[0083] By applying a pressure to the first contact portion 221 or the second contact portion 222 of the pressing plate 22 toward the center surface side of the tray 1, the pressing plate 22 can be conveniently turned to the first position or the second position. The pressing plate 22 is turned down to the first position, and the magnetic attraction force between the magnetic attraction assembly and the first contact portion 221 enables the pressing plate 22 to be stably kept in the first position, so that the battery cell 200 is pressed. The pressing plate 22 is turned up to the second position, and the magnetic attraction force between the magnetic attraction assembly and the second contact portion 222 enables the pressing plate 22 to be stably kept in the second position, so that the battery cell 200 is conveniently taken or placed.

[0084] In the embodiment of the utility model, through the downward and upward movements of the pressing plate 22, the pressing plate 22 can be flexibly switched between the first position and the second position. Through the magnetic attraction force between the magnetic attraction assembly and the pressing plate 22, the pressing plate 22 can be stably kept in the first position state or the second position state, so that the battery cell 200 is pressed or taken or placed. The tray 100 can conveniently and quickly press or release the battery cell 200.

[0085] As Figures 8 to 12As shown, in an optional embodiment, the connecting seat 21 comprises a base 211 and a rotating connecting part 212, the base 211 is arranged at the edge of the supporting plate 1, two rotating connecting parts 212 are arranged at the base 211 in a spaced manner, and the pressing plate 22 is located between the two rotating connecting parts 212; the rotating connecting part 212 comprises a connecting part 2121 and a rotating part 2122, the connecting part 2121 is connected to the base 211, and one of the connecting part 2121 and the pressing plate 22 is rotationally connected to the rotating part 2122.

[0086] Specifically, the connecting seat 21 comprises a base 211 and a rotating connecting part 212, the base 211 is in the shape of a cuboid, the base 211 is located at the edge of the supporting plate 1, and the base 211 can be connected to the supporting plate 1 by screwing. For example, a threaded hole is formed on the supporting plate 1, a counterbore is formed on the base 211, and a grub screw is screwed into the counterbore and the threaded hole in sequence to realize the fixed connection of the base 211 and the supporting plate 1.

[0087] The length direction of the base 211 is consistent with the length direction of the supporting plate 1, two rotating connecting parts 212 are arranged on the top surface of the base 211 in a spaced manner along the length direction of the base 211, the spacing between the two rotating connecting parts 212 is adapted to the width of the pressing plate 22, and the pressing plate 22 is located between the two rotating connecting parts 212.

[0088] The rotating connecting part 212 comprises a connecting part 2121 and a rotating part 2122, and the connecting part 2121 can be connected to the base 211 by screwing. For example, a first threaded hole is formed on the connecting part 2121, a second threaded hole is formed on the base 211, the first threaded hole and the second threaded hole are coaxially arranged, a screw is screwed into the first threaded hole and the second threaded hole in sequence, and the connecting part 2121 and the base 211 are connected.

[0089] One end of the rotating part 2122 is connected to the connecting part 2121, and the other end of the rotating part 2122 is connected to the pressing plate 22.

[0090] Optionally, a threaded hole is formed on the side of the connecting part 2121 facing the pressing plate 22, an external thread is formed on the end of the rotating part 2122 facing the connecting part 2121, the threaded hole and the external thread are adapted to each other, and the rotating part 2122 and the connecting part 2121 are connected by screwing. The rotating part 2122 can also be welded to the side of the connecting part 2121 facing the pressing plate 22. An axle hole is formed on the pressing plate 22, the axial direction of the axle hole is consistent with the width direction of the pressing plate 22, one end of the rotating part 2122 penetrates into the axle hole of the pressing plate 22, and the rotating part 2122 is in clearance fit with the axle hole. By applying pressure to the first contact part 221 or the second contact part 222, the downward action or the upward action of the pressing plate 22 can be realized.

[0091] The assembling process of the pressing plate 22 and the connecting base 21 is as follows: after the rotating part 2122 and the connecting part 2121 are assembled, the two rotating parts 2122 are respectively inserted into the shaft holes of the pressing plate 22, and then the two rotating connecting parts 212 are placed on the base 211, and the base 211 and the connecting part 2121 are connected by screws, so that the rotating connection of the pressing plate 22 and the connecting base 21 is realized.

[0092] Further, as shown in Figure 11 and Figure 14 , the rotating part 2122 is provided with a limiting plate 2123 at one end close to the connecting part 2121, and the limiting plate 2123 is coaxially arranged with the rotating part 2122. The rotating part 2122 and the connecting part 2121 are connected by screwing, and by screwing the rotating part 2122, the screwing position of the rotating part 2122 and the connecting part 2121 is adjusted, so that the distance between the two limiting plates 2123 on the two rotating connecting parts 212 is adapted to the width of the pressing plate 22, that is, the distance between the two limiting plates 2123 is slightly larger than the width of the pressing plate 22. The pressing plate 22 has a first side surface facing one rotating connecting part 212 and a second side surface facing the other rotating connecting part 212, and the width of the pressing plate 22 is the distance between the first side surface and the second side surface.

[0093] By adjusting the distance between the two limiting plates 2123, the distance between the two limiting plates 2123 is adapted to the width of the pressing plate 22, and the two limiting plates 2123 can limit the displacement of the pressing plate 22 along the axis direction of the rotating part 2122, which is beneficial to ensure the stability of the rotation of the pressing plate 22.

[0094] Alternatively, the side of the connecting part 2121 facing the pressing plate 22 is provided with a shaft hole, and the rotating part 2122 can be connected with the side surface of the pressing plate 22 by welding or screwing. One end of the rotating part 2122 is inserted into the shaft hole of the connecting part 2121, and the rotating part 2122 is gap-fitted with the shaft hole. By applying pressure to the first contact part 221 or the second contact part 222, the downward action or the upward action of the pressing plate 22 can be realized.

[0095] The assembling process of the pressing plate 22 and the connecting base 21 is as follows: after the two rotating parts 2122 are assembled with the pressing plate 22, the two rotating parts 2122 are respectively inserted into the shaft holes of the connecting part 2121, and then the two rotating connecting parts 212 are placed on the base 211, and the base 211 and the connecting part 2121 are connected by screws, so that the rotating connection of the pressing plate 22 and the connecting base 21 is realized.

[0096] The pressing plate 22 is connected with the base 211 by the two rotating connecting parts 212, and the two rotating parts 2122 are beneficial to the stability of the rotation of the pressing plate 22.

[0097] In the embodiment of the utility model, the pressing plate 22 is connected with two rotating parts 2122, the two rotating parts 2122 are connected with the base 211 through two connecting parts 2121, the overall structure is compact, convenient to assemble, and the two rotating parts 2122 are beneficial to the stability of the rotation of the pressing plate 22.

[0098] As Figure 8 、 Figure 9 、 Figure 13 and Figure 14 Indicated, in the optional embodiment, the base 211 is provided with a first containing groove 2111 on the side away from the supporting plate 1, the first containing groove 2111 is used to contain the second contact part 222, the top surface of the base 211 forms the first contact surface, and the groove bottom surface of the first containing groove 2111 forms the second contact surface. The pressing plate 22 further comprises a transition part 223, both ends of the transition part 223 are connected with the first contact part 221 and the second contact part 222 respectively, and the transition part 223 is rotationally connected with the rotating part 2122. When the pressing plate 22 is in the first position state, the first contact part 221 is in contact with the first contact surface, and when the pressing plate 22 is in the second position state, the second contact part 222 is in contact with the second contact surface.

[0099] Specifically, the base 211 is provided with a first containing groove 2111 on the side away from the supporting plate 1, the first containing groove 2111 is formed by recessing from one end surface of the base 211 away from the supporting plate 1 to one end surface of the base 211 facing the supporting plate 1, the first containing groove 2111 comprises two first side groove wall surfaces and a first groove bottom surface, and the spacing between the two first side groove wall surfaces is adapted to the width of the pressing plate 22. The two first side groove wall surfaces and the first groove bottom surface form a first containing area. The first containing groove 2111 is used to contain the pressing plate 22, and when the pressing plate 22 is in the second position state, the second contact part 222 is located at the first containing groove 2111.

[0100] The top surface of the base 211 is the first contact surface, the first groove bottom surface is the second contact surface, and the first contact surface and the second contact surface are perpendicular to each other or close to perpendicular.

[0101] The pressing plate 22 comprises the first contact part 221, the transition part 223 and the second contact part 222 connected in sequence, the transition part 223 is gradually changed, extends from the middle part of the transition part 223 to the first contact part 221, and the thickness of the transition part 223 gradually decreases; and the transition part 223 extends from the middle part of the transition part 223 to the second contact part 222, and the thickness of the transition part 223 gradually decreases.

[0102] The transition portion 223 is thicker in the middle and thinner at both ends, and the shaft hole is located at the transition portion 223. The shape of the transition portion 223 facilitates connection with the rotating portion 2122. Furthermore, the transition portion 223 rotates relative to the rotating portion 2122, resulting in greater stress on the transition portion 223. The gradual change in shape of the transition portion 223 provides sufficient strength to prevent deformation of the shaft hole during repeated rotation.

[0103] Furthermore, the thickness of the transition portion 223 gradually decreases from the middle of the transition portion 223 toward both ends of the transition portion 223, which helps to reduce the thickness of the first contact portion 221 and the second contact portion 222, and helps to reduce the weight of the pressure plate 22.

[0104] Along the thickness direction of the pressure plate 22, the first contact portion 221 and the second contact portion 222 are staggered, so that when the pressure plate 22 is flipped down to the first position, the first contact portion 221 can abut against the first contact surface, and a surface contact is formed between the first contact portion 221 and the first contact surface. The pressure plate 22 is not easy to shake or vibrate under external force, which helps to further improve the stability of the pressure plate 22 in the first position.

[0105] When the pressure plate 22 is flipped up to the second position, the second contact part 222 can abut against the second contact surface, and a surface contact is formed between the second contact part 222 and the second contact surface. The pressure plate 22 is not easy to shake or vibrate under external force, which helps to further improve the stability of the pressure plate 22 in the second position.

[0106] like Figure 13 As shown, in an optional embodiment, a second receiving groove 2112 is provided on the side of the base 211 away from the tray 1. The second receiving groove 2112 is formed by recessing one side of the base 211 away from the tray 1 toward the side of the base 211 facing the tray 1. The second receiving groove 2112 is used to receive the clamping part.

[0107] Specifically, a second receiving groove 2112 is provided on the side of the base 211 away from the tray 1. The base 211 has an outer side away from the tray 1 and an inner side facing the tray 1. The second receiving groove 2112 is formed by recessing from the outer side to the inner side along the width direction of the base 211. The depth of the second receiving groove 2112 is less than the depth of the first receiving groove 2111, and the second receiving groove 2112 can communicate with the first receiving groove 2111.

[0108] The second receiving groove 2112 includes two second side groove walls, a second groove bottom surface and a second groove top surface, which together form a second receiving area.

[0109] The second accommodating groove 2112 is used to accommodate the clamping part of the clamping device. During clamping of the tray 100, the clamping part of the clamping jaw enters the second accommodating groove 2112, and the clamping part is in contact with part or all of the second side groove wall surface, the second groove bottom surface and the second groove top surface, which is beneficial to the firmness of clamping.

[0110] It can be understood that the clamping device includes two clamping jaws, which apply clamping force to the tray 100 from two opposite directions, and the two clamping parts are respectively in contact with the groove wall surfaces of the second accommodating grooves 2112 on the first side and the second side of the tray 1, which ensures the stability of clamping and effectively prevents the tray 100 from slipping off.

[0111] As shown in Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 13 , in an optional embodiment, the magnetic assembly includes a first magnetic unit 31 and a second magnetic unit 32, the first magnetic unit 31 is arranged on the top of the connecting seat 21, and the second magnetic unit 32 is arranged on the side of the connecting seat 21; the pressing plate 22 includes a non-metal layer and a third magnetic unit 224 embedded in the non-metal layer. The magnetic attraction force between the first magnetic unit 31 and the third magnetic unit 224 causes the pressing plate 22 to remain in the first position state; the magnetic attraction force between the second magnetic unit 32 and the third magnetic unit 224 causes the pressing plate 22 to remain in the second position state.

[0112] Specifically, the magnetic assembly includes a first magnetic unit 31 and a second magnetic unit 32, and both the first magnetic unit 31 and the second magnetic unit 32 are arranged on the base 211. The first magnetic unit 31 is located on the top of the base 211, and the second magnetic unit 32 is located on the side of the base 211, and in the vertical direction, the first magnetic unit 31 and the second magnetic unit 32 are not located in the same vertical plane. The first magnetic unit 31 and the second magnetic unit 32 are arranged away from each other.

[0113] The main structure of the pressing plate 22 is a non-metal material, and the pressing plate 22 includes a non-metal layer and a third magnetic unit 224 embedded in the non-metal layer. The material of the non-metal layer can be plastic, rubber, carbon fiber, etc. For example, the non-metal layer is made of polyformal material. During the detection process, the non-metal layer has weak absorption ability to the rays, which can minimize the impact on the detection.

[0114] The third magnetic unit 224 is arranged close to the second contact part 222, part of the third magnetic unit 224 is located in the second contact part 222, part of the third magnetic unit 224 is located in the transition part 223, and part of the third magnetic unit 224 can also extend into the first contact part 221.

[0115] The first magnetic attraction unit 31, the second magnetic attraction unit 32 and the third magnetic attraction unit 224 can all be magnets.

[0116] When the pressing plate 22 is in the first position, the first contact part 221 contacts the top surface of the base 211, the second contact part 222 is away from the side surface of the base 211, i.e. the second contact part 222 is away from the bottom surface of the first groove, the first magnetic attraction unit 31 and the third magnetic attraction unit 224 are close to each other, and the magnetic attraction force between the first magnetic attraction unit 31 and the third magnetic attraction unit 224 enables the pressing plate 22 to be stably kept in the first position.

[0117] When the pressing plate 22 is in the second position, the second contact part 222 contacts the side surface of the base 211, the first contact part 221 is away from the top surface of the base 211, the second magnetic attraction unit 32 and the third magnetic attraction unit 224 are close to each other, and the magnetic attraction force between the second magnetic attraction unit 32 and the third magnetic attraction unit 224 enables the pressing plate 22 to be stably kept in the second position.

[0118] A slight pressure applied to the first contact part 221 can realize the adsorption of the first magnetic attraction unit 31 and the third magnetic attraction unit 224, and a slight pressure applied to the second contact part 222 can realize the adsorption of the second magnetic attraction unit 32 and the third magnetic attraction unit 224, which is beneficial to the convenient switching of the pressing plate 22 between the first position and the second position.

[0119] By arranging the first magnetic attraction unit 31 and the second magnetic attraction unit 32 at different positions of the base 211 and arranging the third magnetic attraction unit 224 inside the pressing plate 22, the pressing plate 22 can be stably kept in the first position or the second position, and the structure is simple and easy to realize.

[0120] In the embodiment of the utility model, the first magnetic attraction unit 31 is arranged on the top of the base 211, the second magnetic attraction unit 32 is arranged on the side of the base 211, and the third magnetic attraction unit 224 is arranged inside the pressing plate 22, the magnetic attraction force of the first magnetic attraction unit 31 and the third magnetic attraction unit 224 enables the pressing plate 22 to be stably kept in the first position, the magnetic attraction force of the second magnetic attraction unit 32 and the third magnetic attraction unit 224 enables the pressing plate 22 to be stably kept in the second position, the structure is simple and easy to assemble, the manufacturing cost is low, and the utility model is suitable for the batch production of the tray 100.

[0121] As shown in Figure 10 , Figure 11 , Figure 12 and Figure 13 indicate that, in optional embodiments, the first magnetic attraction unit 31 and the second magnetic attraction unit 32 are magnetic pieces, and the third magnetic attraction unit 224 is a metal piece; or the first magnetic attraction unit 31 and the second magnetic attraction unit 32 are metal pieces, and the third magnetic attraction unit 224 is a magnetic piece.

[0122] Optionally, the first magnetic attraction unit 31 and the second magnetic attraction unit 32 are both magnetic pieces, and the first magnetic attraction unit 31 and the second magnetic attraction unit 32 can both be magnets. The first magnetic attraction unit 31 includes one or more first magnets, for example, the first magnetic attraction unit 31 includes two first magnets, and the two first magnets are arranged at the top of the base 211 in a spaced manner. The second magnetic attraction unit 32 includes one or more second magnets, for example, the second magnetic attraction unit 32 includes two second magnets, and the two second magnets are arranged at the bottom of the first accommodating groove 2111 in a spaced manner.

[0123] The third magnetic attraction unit 224 is a metal piece, which is arranged close to the second contact part 222 and the transition part 223, and the material of the metal piece can be iron, nickel, cobalt, etc.

[0124] When the pressing plate 22 is flipped down to the first position, the first magnet is close to the metal piece, and the second magnet is away from the metal piece, and the first magnet and the metal piece generate magnetic attraction force, so that the pressing plate 22 is stably kept in the first position. When the pressing plate 22 is flipped up to the second position, the first magnet is away from the metal piece, and the second magnet is close to the metal piece, and the second magnet and the metal piece generate magnetic attraction force, so that the pressing plate 22 is stably kept in the second position.

[0125] Optionally, the first magnetic attraction unit 31 and the second magnetic attraction unit 32 can both be magnetic fluids, and the two magnetic fluids are defined as a first magnetic fluid and a second magnetic fluid, respectively. The first magnetic fluid is filled in the top of the base 211, and the second magnetic fluid is filled at the bottom of the first accommodating groove 2111. The first magnetic fluid and the metal piece generate magnetic attraction force, so that the pressing plate 22 is stably kept in the first position, and the second magnetic fluid and the metal piece generate magnetic attraction force, so that the pressing plate 22 is stably kept in the second position.

[0126] Optionally, the first magnetic attraction unit 31 and the second magnetic attraction unit 32 are both metal pieces, and the two metal pieces are defined as a first metal piece and a second metal piece, respectively, and the third magnetic attraction unit 224 is a magnet. The first metal piece is arranged at the top of the base 211, and the second metal piece is arranged at the bottom of the first accommodating groove 2111.

[0127] When the pressing plate 22 is flipped down to the first position, the first metal piece is close to the magnet, and the second metal piece is away from the magnet, and the first metal piece and the magnet generate magnetic attraction force, so that the pressing plate 22 is stably kept in the first position. When the pressing plate 22 is flipped up to the second position, the first metal piece is away from the magnet, and the second metal piece is close to the magnet, and the second metal piece and the magnet generate magnetic attraction force, so that the pressing plate 22 is stably kept in the second position.

[0128] Optionally, the first magnetic attraction unit 31 and the second magnetic attraction unit 32 are both metal parts, and the third magnetic attraction unit 224 is a magnetic fluid, which is filled in the non-metallic layer. The first metal part and the magnetic fluid generate a magnetic attraction force, which makes the pressure plate 22 stably held in the first position, and the second metal part and the magnetic fluid generate a magnetic attraction force, which makes the pressure plate 22 stably held in the second position.

[0129] One of the first magnetic attraction unit 31 and the third magnetic attraction unit 224 is a magnet, and the other is a metal part. The magnetic attraction force generated between the two is neither too large nor too small. Applying a small pressure to the second contact part 222 can separate the first magnetic attraction unit 31 and the third magnetic attraction unit 224, which is conducive to easily switching the pressure plate 22 from the first position to the second position.

[0130] One of the second magnetic unit 32 and the third magnetic unit 224 is a magnet, and the other is a metal part. The magnetic attraction force generated between the two is neither too large nor too small. Applying a small pressure to the first contact part 221 can separate the second magnetic unit 32 and the third magnetic unit 224, which is conducive to easily switching the pressure plate 22 from the second position to the first position.

[0131] The third magnetic unit 224 is embedded in the non-metallic layer. The first magnetic unit 31 and the third magnetic unit 224 are not in direct contact, which facilitates both easy attraction and easy separation of the two. The second magnetic unit 32 and the third magnetic unit 224 are not in direct contact, which facilitates both easy attraction and easy separation of the two.

[0132] like Figure 13 As shown, in an optional embodiment, the first magnetic unit 31 and / or the second magnetic unit 32 are embedded in the connector 21.

[0133] Specifically, both the first magnetic unit 31 and the second magnetic unit 32 can be magnets, and both the first magnet and the second magnet can be columnar. The number of the first magnet and the second magnet is set according to actual needs; for example, there can be two of each.

[0134] Two first blind holes are made at the top of the base 211, and two first magnets are placed in the two first blind holes respectively. Two second blind holes are made at the bottom of the first receiving groove 2111, and two second magnets are placed in the two second blind holes respectively.

[0135] The first magnet is embedded in the top of the base 211, and the second magnet is embedded in the side of the base 211. Both the first magnet and the second magnet are embedded inside the base 211, which helps to save installation space and improves the compactness of the structure.

[0136] Optionally, the first magnetic suction unit 31 and the second magnetic suction unit 32 can be magnetic fluids, the first magnetic fluid is filled in the top of the base 211, the second magnetic fluid is filled in the side of the base 211, and the first magnetic fluid and the second magnetic fluid are both filled in the inside of the base 211, which is beneficial to save installation space.

[0137] The pressing plate 22 is flipped down to the first position, and the first contact part 221 can be in contact with the top surface of the base 211; the pressing plate 22 is flipped up to the second position, and the second contact part 222 can be in contact with the groove bottom surface of the first accommodating groove 2111.

[0138] In the embodiment of the utility model, the first magnetic suction unit 31 and the second magnetic suction unit 32 are embedded in the inside of the base 211, which is beneficial to save installation space and improve the compactness of the overall structure; in addition, the first contact part 221 and the top surface of the base 211 are maximized in contact area, and the second contact part 222 and the side surface of the base 211 are maximized in contact area, which is beneficial to further improve the stability of the pressing plate 22 in the first position and the second position.

[0139] As shown in Figure 1 , Figure 2 and Figure 3 , in the optional embodiment, the tray 100 further comprises a limiting assembly, the limiting assembly comprises a first limiting piece 41 and a second limiting piece 42, and the first limiting piece 41 and the second limiting piece 42 are respectively arranged at the two ends of the tray plate 1; the first limiting piece 41 and the second limiting piece 42 are used for being in contact with the two end surfaces opposite to the battery cell 200.

[0140] Specifically, along the length direction of the tray plate 1, the first limiting piece 41 and the second limiting piece 42 are respectively located at the first end and the second end of the tray plate 1, and the spacing between the first limiting piece 41 and the second limiting piece 42 is matched with the length of the battery cell 200.

[0141] The first limiting piece 41 comprises two first limiting blocks, and the two first limiting blocks are arranged at the first end of the tray plate 1 in the width direction of the tray plate 1; the second limiting piece 42 comprises two second limiting blocks, and the two second limiting blocks are arranged at the second end of the tray plate 1 in the width direction of the tray plate 1.

[0142] The battery cell 200 is placed on the tray plate 1, the first end of the battery cell 200 is opposite to the two first limiting blocks, and the tab at the first end of the battery cell 200 is located in the region between the two first limiting blocks; the second end of the battery cell 200 is opposite to the two second limiting blocks, and the tab at the second end of the battery cell 200 is located in the region between the two second limiting blocks.

[0143] During the movement of the battery cell 200 along with the tray 100 on the conveying line body, the two first limiting blocks and the two second limiting blocks can effectively avoid the bumping of the tab at both ends of the battery cell 200 with other components, thereby protecting the tabs of the battery cell 200.

[0144] As shown in Figure 1 , in an optional embodiment, the tray 100 further comprises a positioning member 5 arranged on the connecting seat 21; the tray plate 1 is provided with a positioning hole extending into the connecting seat 21, and the positioning hole and the positioning member 5 are coaxially arranged; in the stacked state of the plurality of trays 100, the positioning member 5 of one tray 100 is located in the positioning hole of the other tray 100.

[0145] Specifically, along the length direction of the base 211, the end of the base 211 is provided with a positioning member 5, which can be a columnar body, and the positioning member 5 can be connected with the base 211 by welding or screwing.

[0146] The tray plate 1 is provided with a positioning hole extending into the inside of the base 211, and the hole diameter of the positioning hole matches the diameter of the positioning member 5, and the positioning member 5 and the positioning hole are coaxially arranged. It can be understood that the top surface of the positioning member 5 is higher than the top surface of the rotating connecting part 212.

[0147] When the plurality of trays 100 are stacked along the height direction, the positioning member 5 of the next tray 100 is located in the positioning hole of the previous tray 100, and during the transfer of the plurality of trays 100, the plurality of trays 100 are not easy to move relatively, thereby facilitating the stacking and transfer of the plurality of trays 100.

[0148] As shown in Figure 1 , Figure 2 and Figure 3 , in an optional embodiment, at least two pressing plate assemblies 2 are arranged on the opposite sides of the tray plate 1, and a plurality of magnetic attraction assemblies are arranged one by one corresponding to the plurality of pressing plate assemblies 2.

[0149] Specifically, the number of the pressing plate assemblies 2 is even, for example, two pressing plate assemblies 2 are arranged on the first side of the tray plate 1 along the length direction of the tray plate 1, and two pressing plate assemblies 2 are arranged on the second side of the tray plate 1 along the length direction of the tray plate 1, and the plurality of pressing plate assemblies 2 on the first side and the second side press the battery cell 200.

[0150] The number of the magnetic attraction assemblies is the same as that of the pressing plate assemblies 2, for example, the number of the pressing plate assemblies 2 is four, and the number of the magnetic attraction assemblies is also four, and the plurality of pressing plate assemblies 2 and the plurality of magnetic attraction assemblies realize the stable fixation of the battery cell 200.

[0151] The plurality of pressing plate assemblies 2 ensure that the battery cell 200 is not prone to movement, and the position and angle of the battery cell 200 do not change when the tray 100 carrying the battery cell 200 passes through the detection channel, thereby achieving accurate detection of the battery cell 200.

[0152] As shown in Figure 15 The embodiment of the utility model also provides a transfer device 600, the transfer device 600 includes the tray 100, the clamping mechanism 61, the transfer mechanism 62 and drive mechanism as described above. The transfer device 600 can be arranged at the entrance or exit of the detection device.

[0153] 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 parts, and the drive mechanism can drive the two clamping parts to move closer to or away from each other.

[0154] 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 drive mechanism drives the two clamping parts to respectively abut the second accommodating grooves 2112 on the first side and the second side of the tray 1, thereby clamping the tray 100.

[0155] The transfer mechanism 62 can perform multiple dimensional rotation and translation movements, and the clamping mechanism 61 clamps the tray 100, which is placed on the entrance section of the conveying line by the rotation and translation movements of the transfer mechanism 62. Further, the position and angle of the tray 100 can be adjusted by the rotation and translation movements of the transfer mechanism 62, thereby adjusting 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 to the detection channel, thereby achieving detection of the battery cell 200.

[0156] After detection is completed, the tray 100 moves to the exit section of the conveying line, and the exit section of the conveying line is also provided with a transfer device 600. The drive mechanism drives the two clamping parts to move closer to each other to clamp the tray 100, and further transfers the tray 100 from the exit section of the conveying line to the next conveying line by the rotation and translation movements of the transfer mechanism 62.

[0157] The structure of the tray 100 allows for convenient and efficient fixing or loosening of the battery cell 200, and the second accommodating grooves 2112 provided on the tray 100 facilitate the stability of the clamping mechanism 62 clamping the tray 100, thereby improving the transfer efficiency of the battery cell 200 and ensuring the reliability of the transfer process.

[0158] As shown in Figure 16 The embodiment of the utility model also provides a detection device 700, which includes a detection device and the above-mentioned transfer device 600.

[0159] Optionally, the detection device comprises a first conveying mechanism 71, a radiographic detection mechanism 72, a second conveying mechanism 73 and a tomographic detection mechanism 74.

[0160] The first conveying mechanism 71 is used for conveying the battery cell 200, the radiographic detection mechanism 72 can detect the battery cell 200 by X-ray, and when detecting, the radiographic detection mechanism 72 can scan the whole or part of the battery cell 200, and 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, and 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.

[0161] A rotating device 600 (not shown in the figure) is arranged at the inlet section of the first conveying mechanism 71. Figure 16 The rotating 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.

[0162] A rotating 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 rotating device 600 clamps the tray 100 carrying the battery cell 200 on the first conveying surface and places it on the second conveying surface of the second conveying mechanism 73. The rotating device 600 can sequentially stack the battery cells 200 to form a stacked battery cell group 210. When the battery cell group 210 is conveyed to the position corresponding to the tomographic detection mechanism 74, the tomographic detection mechanism 74 rotates around the side of the battery cell group 210. The movement surface of the tomographic detection mechanism 74 is a horizontal surface parallel to the second conveying surface. The scanning result of the tomographic detection mechanism 74 is a side image of the battery cell group 210. According to the detection result, the alignment of the pole piece can be detected to determine whether the battery cell 200 meets the requirements.

[0163] A rotating device 600 is arranged at the outlet section of the second conveying mechanism 73.Figure 16 After the detection is completed, the transfer device 600 clamps the tray 100 on the second conveying mechanism and rotates the tray 100 to the next conveying line body to perform subsequent process operations.

[0164] 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 processing of the first receiving unit 722 to judge the internal defect condition 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 line array detector.

[0165] 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.

[0166] The ray imaging detection mechanism 72 detects various defects of the battery cell 200, such as 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.

[0167] The tomographic imaging detection mechanism 74 detects various defects of the battery cell group 210, such as whether the pole piece in the battery cell 200 is aligned, whether the pole piece is folded, whether there is extrusion between the pole groups, and whether the pole piece has welding defects.

[0168] The detection efficiency of the ray imaging detection mechanism 72 is relatively high, but the detection precision is relatively low, and the detection effect of impurities and foreign matters in the battery cell 200 is relatively good. The detection efficiency of the tomographic imaging detection mechanism 74 is relatively low, but the detection precision is relatively high, especially for the detection of whether the pole piece of the battery cell is aligned and whether the pole piece is folded. 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.

[0169] 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.

[0170] The tray 100 with the above structure can conveniently and quickly realize the fixing or loosening of the battery cell 200, the transfer device 600 can ensure the stability of clamping the tray 100, and when a plurality of battery cells 200 are batch detected, the detection equipment 700 can effectively improve the detection efficiency and detection accuracy.

[0171] 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 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 characterized in that, The tray comprises: a support plate for supporting a battery cell; a pressing plate assembly comprising a connecting base connected to the support plate and a pressing plate rotatably connected to the connecting base and operable to switch between a first position state and a second position state; and a magnetic assembly arranged on the connecting base for keeping the pressing plate in the first position state or the second position state, wherein the pressing plate comprises a first contact portion and a second contact portion, the first contact portion is in contact with the battery cell to press the battery cell against the support plate when the pressing plate is in the first position state, and the second contact portion is in contact with the connecting base to release the battery cell when the pressing plate is in the second position state.

2. The tray according to claim 1, wherein the connecting base comprises a base arranged on an edge of the support plate and two rotating connecting portions arranged on the base in a spaced manner, and the pressing plate is located between the two rotating connecting portions; and the rotating connecting portion comprises a connecting portion connected to the base and a rotating portion rotatably connected to one of the connecting portion and the pressing plate.

3. The tray according to claim 2, wherein the base arranged on a side away from the support plate is provided with a first accommodating groove for accommodating the second contact portion, a top surface of the base forms a first contact surface, and a groove bottom surface of the first accommodating groove forms a second contact surface; the pressing plate further comprises a transition portion, two ends of the transition portion are connected to the first contact portion and the second contact portion respectively, and the transition portion is rotatably connected to the rotating portion; and the first contact portion is in contact with the first contact surface when the pressing plate is in the first position state, and the second contact portion is in contact with the second contact surface when the pressing plate is in the second position state.

4. The tray according to claim 3, wherein the base arranged on a side away from the support plate is provided with a second accommodating groove, the second accommodating groove is formed by recessing from a side of the base away from the support plate to a side of the base facing the support plate, and the second accommodating groove is used for accommodating a clamping portion.

5. The tray according to any one of claims 1-4, wherein the magnetic assembly comprises a first magnetic unit arranged on a top of the connecting base and a second magnetic unit arranged on a side of the connecting base; the pressing plate comprises a non-metal layer and a third magnetic unit embedded in the non-metal layer; and a magnetic attraction force between the first magnetic unit and the third magnetic unit keeps the pressing plate in the first position state, and a magnetic attraction force between the second magnetic unit and the third magnetic unit keeps the pressing plate in the second position state.

6. The tray according to claim 5, wherein the first magnetic unit and the second magnetic unit are magnetic pieces, and the third magnetic unit is a metal piece; or the first magnetic unit and the second magnetic unit are metal pieces, and the third magnetic unit is a magnetic piece. ​ ​ 7. The tray according to claim 5, wherein, the first magnetic attraction unit and / or the second magnetic attraction unit is embedded in the connecting seat.

8. The tray of any one of claims 1-4, wherein, Further comprising: a limiting assembly; the limiting assembly comprises a first limiting member and a second limiting member, the first limiting member and the second limiting member are respectively arranged at two ends of the tray plate; the first limiting member and the second limiting member are used to contact two end faces opposite to the battery cell.

9. The tray of any one of claims 1-4, wherein, Further comprising: a positioning member; the positioning member is arranged in the connecting seat; the tray plate is provided with a positioning hole, and the positioning hole extends into the connecting seat, and the positioning hole and the positioning member are coaxially arranged; and in the stacked state of a plurality of the trays, in two adjacent trays, the positioning member of one tray is located in the positioning hole of the other tray.

10. The tray according to any one of claims 1-4, wherein, at least two pressing plate assemblies are arranged on opposite sides of the tray plate, and a plurality of magnetic attraction assemblies are arranged one by one corresponding to a plurality of pressing plate assemblies.

11. The tray according to any one of claims 1-4, 6 and 7, wherein, the tray plate is a non-metal member.

12. A transfer device, characterized by including: the tray according to any one of claims 1 to 11; a clamping mechanism comprising two clamping parts arranged oppositely, for clamping the tray; a transfer mechanism connected with the clamping mechanism, for transferring the tray.

13. A detection device, characterized by including: the transfer device according to claim 12; and a detection device comprising a conveying mechanism and a detection mechanism, wherein the transfer device is used to transfer the tray carrying the battery cell to the conveying mechanism, and the detection mechanism is used to detect the battery cell carried by the tray on the conveying mechanism.

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