Restraint tray

Abstract

This utility model provides a restraint tray, comprising: a base plate, with multiple slider groups arranged on the top side of the base plate, each slider group capable of sliding along a first direction; multiple clamping plates, each disposed on a corresponding slider group, all used to abut against the wide surface of the battery; a first side plate and a second side plate, fixed to the base plate and located on opposite sides of the clamping plates in the first direction; and a clamping mechanism, including an end plate, a pressure rod, and a lead screw. The end plate is located on the side of the first side plate facing away from the clamping plates. One end of the pressure rod is connected to the end plate, and the other end passes through the first side plate and abuts against the clamping plates. One end of the lead screw is rotatably engaged with the first side plate and is axially fixed relative to it. The other end of the lead screw is threadedly engaged with the end plate and used for applying torque by the user. This design reduces the lateral dimension of the restraint tray, thereby shortening the required travel distance of the probe.

Description

Technical Field

[0001] This utility model relates to the field of battery formation and capacity technology, and in particular to a restraint tray. Background Technology

[0002] Battery formation and capacity testing are core processes in lithium battery manufacturing. By activating the battery through charge-discharge cycles and screening for performance consistency, they directly impact the battery's energy density, cycle life, and safety. Formation refers to the initial charging of a newly installed battery, forming a solid electrolyte interface film. This process consumes some lithium ions but improves electrode stability, requiring precise control of current, voltage, and temperature. Capacity testing involves measuring the actual capacity through several charge-discharge cycles to match battery packs to different levels. Key indicators include discharge capacity, constant current ratio, and internal resistance. This process requires a constant temperature environment to ensure data accuracy.

[0003] The batteries need to be loaded onto a restraint tray, and the bed-of-needles device performs a formation process on the batteries on the restraint tray. In related technologies, the restraint tray uses guide rods in conjunction with a shaping plate to restrain the batteries. Specifically, the shaping plate has protruding rings at its four corners, which slide along the guide rods to clamp and restrain the batteries located between adjacent shaping plates. The protruding rings occupy a relatively large amount of space, resulting in an excessively large lateral dimension of the restraint tray and a longer required probe travel distance. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a restraint tray that can reduce the lateral dimension and shorten the required travel distance of the probe.

[0005] This utility model provides a restraint tray, which includes: a base plate with multiple slider groups arranged on its top side in a first direction and capable of sliding along the first direction; multiple clamping plates respectively disposed on the corresponding slider groups and used to abut against the wide surface of the battery; a first side plate fixed to the base plate and located on one side of the clamping plates in the first direction; a second side plate fixed to the base plate and located on the other side of the clamping plates in the first direction; and a clamping mechanism including an end plate, a pressure rod, and a lead screw. The end plate is located on the side of the first side plate opposite to the clamping plates. One end of the pressure rod is connected to the end plate, and the other end passes through the first side plate and abuts against the clamping plates. One end of the lead screw is rotatably engaged with the first side plate and is axially fixed relative to it. The other end of the lead screw is threadedly engaged with the end plate and used for applying torque by the user.

[0006] The restraint tray provided by this embodiment of the utility model has at least the following beneficial effects: By setting multiple slider groups arranged in a first direction on the top side of the base plate and each slider group being able to slide in the first direction, multiple clamping plates are respectively set on the corresponding slider groups, allowing the multiple clamping plates to slide relative to the base plate to clamp multiple batteries. Compared with the sliding engagement method using guide rods, the slider groups occupy less space in the lateral direction, thus reducing the lateral dimension of the restraint tray and shortening the required travel distance of the probe. Furthermore, the end plate is set on the side of the first side plate facing away from the clamping plate. One end of the pressure rod is connected to the end plate, and the other end of the pressure rod passes through the first side plate and abuts against the clamping plate. One end of the lead screw is rotatably engaged with the first side plate and is relatively fixed in the axial direction, while the other end of the lead screw is threadedly engaged with the end plate and used to allow the user to apply torque. This allows the user to rotate the lead screw to move the first side plate and the pressure rod toward or away from the clamping plate to clamp or release the batteries. The operation is simple. At the same time, since the clamping mechanism is set on one side of the longitudinal direction of the multiple clamping plates, it does not occupy lateral space, further reducing the lateral dimension of the restraint tray and further shortening the required travel distance of the probe.

[0007] In one embodiment of this implementation, the slider group includes two sliders, which are arranged opposite to each other in a second direction perpendicular to the first direction and each has a mounting groove, and the bottom of the corresponding clamping plate is engaged with the two mounting grooves.

[0008] In one embodiment of this implementation, the slider has a connected support portion and a limiting portion, the support portion being used to abut against the bottom surface of the battery, and the limiting portion being used to abut against the narrow surface of the battery.

[0009] In one embodiment of this implementation, the base plate is provided with two guide blocks, and in the second direction, the two sides of the two sliders respectively abut against the corresponding guide blocks.

[0010] In one embodiment of this implementation, the first side plate has a guide hole, and the pressure rod is slidably fitted into the guide hole.

[0011] In one embodiment of this implementation, there are multiple pressure rods and guide holes, and they are matched one-to-one.

[0012] In one embodiment of this implementation, the clamping mechanism includes a nut, which is mounted on the end plate and has a threaded hole that engages with the lead screw thread.

[0013] In one embodiment of this implementation, the restraint tray includes a connecting rod, one end of which is fixedly connected to the first side plate and the other end of which is fixedly connected to the second side plate.

[0014] In one embodiment of this implementation, a positioning hole is provided on the bottom side of the base plate, and the positioning hole is used to cooperate with the positioning structure of the pallet positioning mechanism.

[0015] In one embodiment of this implementation, the restraint tray includes a handle that is fixed to the first side plate.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of a restraint tray according to one embodiment of the present invention; Figure 2 yes Figure 1 A schematic diagram of the structure after multiple batteries are installed on the restraint tray; Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure of the restraint tray as viewed in the first direction; Figure 4 yes Figure 2 A schematic cross-sectional view of the restraint tray as viewed in the second direction.

[0018] Figure label: Restraint tray 200; Base plate 21; slider assembly 211; slider 212; mounting groove 2120; support part 2121; limiting part 2122; guide block 213; 22-inch plywood; First side plate 23; guide hole 231; Second side panel 24; Clamping mechanism 25; end plate 251; pressure rod 252; lead screw 253; nut 254; threaded hole 2541; Connecting rod 26; Handle 27; Pressure plate 28; Battery 400; First direction 91; Second direction 92. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] Please see Figures 1 to 3 , Figure 1 This is a structural schematic diagram of the restraint tray 200 according to one embodiment of the present utility model; Figure 2 yes Figure 1 A schematic diagram of the structure of a restraint tray 200 after multiple batteries 400 are installed; Figure 3 yes Figure 2A cross-sectional view of the restraint tray 200 viewed in the first direction 91. This embodiment of the invention provides a restraint tray 200, which includes a base plate 21, multiple clamping plates 22, a first side plate 23, a second side plate 24, and a pressing mechanism 25. Multiple slider groups 211 are provided on the top side of the base plate 21, arranged in the first direction 91 and each capable of sliding along the first direction 91. Multiple clamping plates 22 are respectively disposed on corresponding slider groups 211 and are all used to abut against the wide surface of the battery 400. The first side plate 23 is fixed to the base plate 21 and located on one side of the multiple clamping plates 22 in the first direction 91. The second side plate 24 is fixed to the base plate 21 and located on the other side of the multiple clamping plates 22 in the first direction 91. The clamping mechanism 25 includes an end plate 251, a pressure rod 252, and a lead screw 253. The end plate 251 is located on the side of the first side plate 23 facing away from the clamping plate 22. One end of the pressure rod 252 is connected to the end plate 251, and the other end passes through the first side plate 23 and abuts against the clamping plate 22. One end of the lead screw 253 is rotatably engaged with the first side plate 23 and is relatively fixed in the axial direction. The other end of the lead screw 253 is threadedly engaged with the end plate 251 and is used for the user to apply torque.

[0025] Specifically, the clamping mechanism 25 includes a handle (not shown), which is fixed to the end of the lead screw 253 away from the clamping plate 22. The user can apply torque to the lead screw 253 by rotating the handle. Multiple batteries 400 can be placed between two adjacent clamping plates 22 respectively, so as to achieve clamping restraint under the push of the pressure rod 252.

[0026] It should be noted that the two surfaces of the battery 400 in the first direction 91 are wide surfaces, and the two surfaces of the battery 400 in the second direction 92, which is perpendicular to the first direction 91, are narrow surfaces. The lateral dimension of the restraint tray 200 refers to its dimension in the second direction 92, and the longitudinal dimension of the restraint tray 200 refers to its dimension in the first direction 91.

[0027] It is understood that by using the restraint tray 200 provided in this embodiment of the utility model, after the battery 400 is placed between the two corresponding clamps 22, the narrow side of the battery 400 can be made as flush as possible with the clamp 22, so that the electrode on the narrow side of the battery 400 can be closer to the edge of the base plate 21 in the second direction 92, thereby allowing the probe to move a shorter distance to contact the electrode for charging and discharging, thus shortening the probe's movement stroke.

[0028] By providing multiple slider groups 211 arranged in a first direction 91 and capable of sliding along the first direction 91 on the top side of the base plate 21, and by respectively placing multiple clamping plates 22 on the corresponding slider groups 211, the multiple clamping plates 22 can slide relative to the base plate 21 to clamp multiple batteries 400. Compared with the sliding engagement method using guide rods, the slider groups 211 occupy less space in the lateral direction, thus reducing the lateral dimension of the restraint tray 200 and shortening the required travel distance of the probe. Furthermore, the end plate 251 is located on the side of the first side plate 23 facing away from the clamping plate 22, and one end of the pressure rod 252 is connected to the end plate 251. The other end of the screw 253 passes through the first side plate 23 and can abut against the clamping plate 22. One end of the screw 253 is rotatably engaged with the first side plate 23 and is relatively fixed in the axial direction. The other end of the screw 253 is threadedly engaged with the end plate 251 and is used for the user to apply torque. This allows the user to rotate the screw 253 to move the first side plate 23 and the pressure rod 252 toward or away from the clamping plate 22 to clamp or release the battery 400. The operation is simple. At the same time, since the clamping mechanism 25 is set on one side of the longitudinal direction of the multiple clamping plates 22, it does not occupy the lateral space, further reducing the lateral dimension of the restraint tray 200 and further shortening the required travel of the probe.

[0029] In one embodiment of this implementation, please refer to Figure 3 The slider assembly 211 includes two sliders 212, which are positioned opposite each other in a second direction 92 perpendicular to the first direction 91, and each slider 212 has a mounting groove 2120. The bottom of the corresponding clamping plate 22 is engaged with the two mounting grooves 2120. Specifically, the two corners of the bottom of the clamping plate 22 are engaged in the corresponding mounting grooves 2120. It can be understood that the surfaces of the clamping plate 22 in the first direction 91 and the second direction 92 abut against the inner walls of the mounting grooves 2120, thereby fixing the relative positions of the clamping plate 22 and the slider assembly 211 in the first direction 91 and the second direction 92, thus completing the installation of the clamping plate 22 and the slider assembly 211. The installation of the clamping plate 22 and the slider assembly 211 does not require screws or other connecting devices, simplifying the structure and reducing costs.

[0030] Specifically, the mounting groove 2120 is constructed as a corner groove to better fit the corners of the clamping plate 22.

[0031] In one embodiment of this implementation, please refer to Figure 2 and Figure 3 The slider 212 has a connected support portion 2121 and a limiting portion 2122. The support portion 2121 is used to abut against the bottom surface of the battery 400, and the limiting portion 2122 is used to abut against the narrow surface of the battery 400. With this configuration, the slider 212 can cooperate with the clamping plate 22 to support and limit the battery 400.

[0032] In one embodiment of this implementation, please refer to Figure 1 and Figure 3 To enable the slider assembly 211 to slide relative to each other on the base plate 21 in the first direction 91, and to simplify installation and structure, the base plate 21 is provided with two guide blocks 213. In the second direction 92, the two sides of the two sliders 212 respectively abut against the corresponding guide blocks 213. It is understood that the user can first assemble the clamping plate 22 with the two sliders 212, and then place it between the two guide blocks 213 on the base plate 21, so that the clamping plate 22 and the two sliders 212 can slide synchronously along the first direction 91 under the constraint of the two guide blocks 213. Since no slide rail is required and no screw connection is needed, the installation difficulty is low and the structure is relatively simple.

[0033] In one embodiment of this implementation, please refer to Figure 1 and Figure 2 In order to improve the movement accuracy of the pressure rod 252, the first side plate 23 is provided with a guide hole 231, and the pressure rod 252 is slidably fitted into the guide hole 231.

[0034] In one embodiment of this implementation, please refer to Figure 1 and Figure 2 To ensure even force distribution on the clamping plate 22 and better compress the battery 400, multiple pressure rods 252 and guide holes 231 are used, and they are matched one-to-one. Specifically, in this embodiment, there are four pressure rods 252 and four guide holes 231.

[0035] In one embodiment of this implementation, please refer to Figure 4 , Figure 4 yes Figure 2 The restraint tray 200 is shown in a cross-sectional view viewed in the second direction 92. In order to achieve the threaded engagement between the lead screw 253 and the end plate 251, the clamping mechanism 25 includes a nut 254, which is mounted on the end plate 251 and has a threaded hole 2541 that engages with the lead screw 253.

[0036] In one embodiment of this implementation, please refer to Figure 1 and Figure 2 In order to improve the connection strength of the base plate 21, the first side plate 23 and the second side plate 24, and thus better restrain the multiple batteries 400, the restraint tray 200 includes a connecting rod 26, one end of which is fixedly connected to the first side plate 23 and the other end is fixedly connected to the second side plate 24.

[0037] In one embodiment of this implementation, please refer to Figure 1The bottom side of the base plate 21 has positioning holes (not shown), which are used to cooperate with the positioning structure of the pallet positioning mechanism. This is designed so that the pallet 200 can be positioned in the forming or dividing storage location.

[0038] In one embodiment of this implementation, please refer to Figure 1 The restraint tray 200 includes a handle 27, which is fixed to the first side plate 23. By providing the handle 27 on the first side plate 23, the user can push the restraint tray 200 into the warehouse or pull the restraint tray 200 out of the warehouse using the handle 27.

[0039] In one embodiment of this implementation, please refer to Figure 1 In order to improve the structural strength of the second side plate 24 and better clamp the multiple batteries 400, the restraint tray 200 includes a pressure plate 28, which is fixed to the second side plate 24 and is used to abut against the adjacent clamping plate 22.

[0040] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A restraining tray characterized by, include: A base plate, the top side of which is provided with a plurality of slider groups, the plurality of slider groups being arranged in a first direction and each being able to slide along the first direction; Multiple clamping plates are respectively set on the corresponding slider group, and all are used to abut against the wide surface of the battery; The first side plate is fixed to the base plate and is located on one side of the plurality of clamps in the first direction; The second side plate is fixed to the base plate and is located on the other side of the plurality of clamps in the first direction; The clamping mechanism includes an end plate, a pressure rod, and a lead screw. The end plate is located on the side of the first side plate facing away from the clamping plate. One end of the pressure rod is connected to the end plate, and the other end passes through the first side plate and can abut against the clamping plate. One end of the lead screw is rotatably engaged with the first side plate and is relatively fixed in the axial direction. The other end of the lead screw is threadedly engaged with the end plate and is used for the user to apply torque.

2. The restraint tray of claim 1, wherein, The slider assembly includes two sliders, which are arranged opposite each other in a second direction perpendicular to the first direction, and each slider has a mounting groove. The bottom of the corresponding clamping plate is engaged with the two mounting grooves.

3. The restraint tray of claim 2, wherein, The slider has a connected support portion and a limiting portion. The support portion is used to abut against the bottom surface of the battery, and the limiting portion is used to abut against the narrow surface of the battery.

4. The restraint tray of claim 2, wherein, The base plate is provided with two guide blocks, and in the second direction, the two sides of the two sliders respectively abut against the corresponding guide blocks.

5. The restraint tray of claim 1, wherein, The first side plate has a guide hole, and the pressure rod is slidably fitted into the guide hole.

6. The restraint tray of claim 5, wherein, There are multiple pressure rods and guide holes, and they are matched one-to-one.

7. The restraint tray of claim 1, wherein, The clamping mechanism includes a nut, which is mounted on the end plate and has a threaded hole that engages with the lead screw thread.

8. The restraint tray of claim 1, wherein, The restraint tray includes a connecting rod, one end of which is fixedly connected to the first side plate and the other end of which is fixedly connected to the second side plate.

9. The restraint tray of claim 1, wherein, The bottom side of the base plate is provided with a positioning hole, which is used to cooperate with the positioning structure of the pallet positioning mechanism.

10. The restraint tray of claim 1, wherein, The restraint tray includes a handle, which is fixed to the first side plate.

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