Square battery non-constrained tray
By designing a non-constraint tray, the problem of protruding aluminum shells in the formation process of square lithium batteries was solved, achieving stable battery fixation and efficient production, reducing costs, and improving battery production efficiency and compatibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NEWARE TECH LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-29
AI Technical Summary
In the existing formation process of square lithium batteries, the aluminum casing of the battery is prone to local bulging during formation, which leads to poor assembly. In addition, the existing restraint tray structure is complex and costly, and cannot effectively prevent the battery from expanding and bulging.
A non-restraint tray was designed, including a left tray front plate, a right tray front plate, and a connecting shaft. The battery is stably fixed by the fixing strip slots of the left and right battery bushing blocks and connected to the tray front plate. It is suitable for the transfer of square batteries and automated fixture testing.
This method achieves stable battery fixation, reduces production costs, improves battery production efficiency and compatibility, facilitates manual and automated handling, and avoids assembly defects caused by battery protrusion.
Smart Images

Figure CN224304708U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery formation testing technology, and in particular to a square battery unconstrained tray. Background Technology
[0002] The lithium battery industry has also developed significantly. Under these circumstances, the requirements for the production effect and efficiency of lithium batteries are becoming increasingly stringent. Therefore, it is necessary to strengthen the effective control of the cell production process to improve the efficiency and capacity of the production line. Among these processes, the formation process of square lithium batteries currently involves a relatively complex and costly restraint tray.
[0003] In existing technologies, prismatic lithium batteries all use aluminum casings. During the formation process, the aluminum casing will bulge locally under the pressure of the formation process. Existing battery restraint trays include multiple battery compartments for fixing lithium batteries. Spring clips are set on both sides of the opening at the top of the battery compartment to fix the lithium battery in the battery compartment. This method uses the spring force to restrain the shape of the battery. This restraint method cannot monitor whether the battery compartment is in close contact with the battery, and cannot effectively prevent the battery from expanding and bulging. After the formation process, if the battery is not effectively restrained, the aluminum casing will bulge locally. In the subsequent assembly process, the bulging of the casing of a single battery will cause changes in the assembly clearance groove, resulting in poor assembly and failure to assemble the battery pack.
[0004] Chinese patent CN114388915A discloses a square battery restraint tray, comprising: a support frame including a first end plate assembly, a second end plate assembly, a base plate, and a support shaft, wherein the first end plate assembly and the second end plate assembly are parallel and facing each other, respectively located at the two ends of the square battery restraint tray; the base plate is disposed between the first end plate assembly and the second end plate assembly for supporting the bottom of the battery; the support shaft is located above the base plate, and its two ends are respectively connected to the first end plate assembly and the second end plate, for mounting a battery separator assembly; a battery separator assembly, disposed between the first end plate assembly and the second end plate assembly, including end battery separator assemblies and a plurality of parallel middle battery separator assemblies, wherein there are two sets of end battery separator assemblies, wherein the first set of end battery separator assemblies is movably disposed on the base plate, and the second set of battery separator assemblies is fixedly connected to the base plate and / or the second end plate assembly; the middle battery separator assemblies are equally spaced between the two sets of end battery separator assemblies, and the end battery... The separator assembly, the middle battery separator assembly, and the first end plate assembly and the second end plate assembly are parallel; the end battery separator assembly and the middle battery separator assembly are slidably sleeved on the support shaft, and the two sets of end battery separator assemblies are interconnected with the adjacent middle battery separator assembly and with adjacent sets of middle battery separator assemblies through equally spaced connectors; and a spacing adjustment assembly is disposed between the battery separator assembly and the first end plate assembly, including a first adjusting separator, a second adjusting separator, and a plug assembly. The first adjusting separator and the second adjusting separator are slidably sleeved on the support shaft between the battery separator assembly and the first end plate assembly. The first adjusting separator is fixedly connected to the first end plate assembly, and the second adjusting separator is fixedly connected to the adjacent end battery separator assembly; the plug assembly is detachably disposed between the first adjusting separator and the second adjusting separator, and is used to adjust the clamping degree of the battery separator assembly on the battery, which solves the problems of simple structure, convenient adjustment, good clamping effect, and low cost. Summary of the Invention
[0005] The purpose of this utility model is to solve the above-mentioned technical problems by providing a new type of non-restraint tray for square batteries. This non-restraint tray is specifically designed for the transfer and storage of square batteries and for use as a testing carrier for automated fixtures. The mechanism is simple and reliable, easy to mass-produce with molds and low cost. The tray mechanism is highly compatible with square batteries of different lengths, widths and thicknesses, and the adjustment and compatibility are convenient and quick. It is also suitable for manual handling and automated logistics vehicle handling.
[0006] This utility model is achieved through the following technical solution:
[0007] A square battery unrestrained tray includes a left tray front plate, a restraint tray device, a right tray front plate, and a connecting shaft. The restraint tray device has a left tray front plate on its left side and a right tray front plate on its right side. One end of the connecting shaft passes through the restraint tray device and connects to the left tray front plate, and the other end of the connecting shaft passes through the restraint tray device and connects to the right tray front plate. The restraint tray device includes a left battery bushing block, a right battery bushing block, and a bushing fixing strip. Battery mounting positions are provided in the middle of the left and right battery bushing blocks. A connecting shaft through hole is provided at the upper part of the left and right battery bushing blocks. A connecting shaft through hole is provided on the upper outer side of the left and right battery bushing blocks. The wall is provided with a fixing strip groove. The lower part of the left battery bushing block and the right battery bushing block is provided with a connecting shaft through hole. The lower outer wall of the left battery bushing block and the right battery bushing block is provided with a fixing strip groove. A square battery is provided between the left battery bushing block and the right battery bushing block. One end of the connecting shaft passes through the connecting shaft through hole in the upper or lower part of the left battery bushing block and the right battery bushing block and connects to the connecting shaft through hole in the upper or lower part of the left tray front plate or the right tray front plate, and is fixed to the upper or lower part of the left tray front plate or the right tray front plate. The bushing fixing strip is embedded in the fixing strip groove in the upper or lower outer wall of the left battery bushing block and the right battery bushing block is fixedly connected.
[0008] As a further step, the left or right front plate of the tray has several connecting shaft through holes on its upper and lower parts, the left front plate of the tray has a groove inside, the groove has a cavity in the middle, and the left front plate of the tray has slots on both sides.
[0009] As a further step, the lower outer side walls of the left or right front panel of the pallet are provided with limiting grooves.
[0010] As a further step, the lower outer sidewalls of the left and right battery bushing blocks are provided with limiting grooves.
[0011] The beneficial effects of this utility model are as follows: This non-restraint tray is specially designed for the transfer and storage of square batteries and for use as a supporting automated fixture testing carrier. The mechanism is simple and reliable, easy to mass-produce with low cost, and the tray mechanism is highly compatible with square batteries of different lengths, widths and thicknesses. It is also convenient and quick to adjust and adapt, and is suitable for both manual handling and automated logistics vehicle handling. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the non-constrained square battery tray structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the exploded structure of the square battery unconstrained tray of this utility model;
[0014] Figure 3 This is a schematic diagram of the structure of the left or right front panel of the pallet of this utility model;
[0015] Figure 4 This is a schematic diagram of the structure of the left battery bushing block and the right battery bushing block of this utility model;
[0016] Reference numerals: 1. Left tray front end plate; 11. Connecting shaft through hole; 12. Groove; 13. Cavity; 14. Slot; 15. Limiting slot; 2. Tray restraint device; 21. Left battery bushing block; 210. Fixing strip slot; 211. Limiting slot; 22. Right battery bushing block; 23. Bushing fixing strip; 24. Battery mounting position; 3. Right tray front end plate; 4. Connecting shaft; 5. Square battery. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.
[0019] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0020] For reference Figures 1-4 As shown, a square battery unrestrained tray includes a left tray front plate 1, a restraint tray device 2, a right tray front plate 3, and a connecting shaft 4. The left tray front plate 1 is located on the left side of the restraint tray device 2, and the right tray front plate 3 is located on the right side of the restraint tray device 2. One end of the connecting shaft 4 passes through the restraint tray device 2 and is connected to the left tray front plate 1, and the other end of the connecting shaft 4 passes through the restraint tray device 2 and is connected to the right tray front plate 3.
[0021] Preferably, the left tray front plate 1 or the right tray front plate 3 is provided with a plurality of connecting shaft through holes 11 on the upper and lower parts, the left tray front plate 1 is provided with a groove 12 inside, the groove 12 is provided with a cavity 13 in the middle, and the left tray front plate 1 is provided with slots 14 on both sides.
[0022] Preferably, the restraint tray device 2 includes a left battery bushing block 21, a right battery bushing block 22, and a bushing fixing strip 23. A battery mounting position 24 is provided in the middle of the left battery bushing block 21 and the right battery bushing block 22. A connecting shaft through hole 11 is provided at the upper part of the left battery bushing block 21 and the right battery bushing block 22. A fixing strip groove 210 is provided on the upper outer wall of the left battery bushing block 21 and the right battery bushing block 22. A connecting shaft through hole 11 is provided at the lower part of the left battery bushing block 21 and the fixing strip groove 210 is provided on the lower outer wall of the left battery bushing block 21 and the right battery bushing block 22. A square battery 5 is provided between the left battery bushing block 21 and the right battery bushing block 22. One end of the connecting shaft 4 passes through the connecting shaft through hole 11 in the upper or lower part of the left battery bushing block 21 and the right battery bushing block 22 and connects to the connecting shaft through hole 11 in the upper or lower part of the left tray front plate 1 or the right tray front plate 3, and is fixed in the upper or lower part of the left tray front plate 1 or the right tray front plate 3. The bushing fixing strip 23 is embedded in the fixing strip slot 210 on the upper or lower outer side wall of the left battery bushing block 21 and the right battery bushing block 22, and fixes the left battery bushing block 21 and the right battery bushing block 22 together.
[0023] Preferably, the lower outer side walls of the left tray front plate 1 or the right tray front plate 3 are provided with limiting grooves 15.
[0024] Preferably, the lower outer sidewalls of the left battery bushing block 21 and the right battery bushing block 22 are provided with limiting grooves 211.
[0025] Based on the disclosure and teachings of the above specification, those skilled in the art can make appropriate changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.
Claims
1. A square battery unconstrained tray, characterized in that: The device includes a left tray front panel, a restraint tray device, a right tray front panel, and a connecting shaft. The restraint tray device has a left tray front panel on its left side and a right tray front panel on its right side. One end of the connecting shaft passes through the restraint tray device and connects to the left tray front panel, and the other end passes through the restraint tray device and connects to the right tray front panel. The restraint tray device includes a left battery bushing block, a right battery bushing block, and bushing fixing strips. Battery mounting positions are located in the middle of both the left and right battery bushing blocks. A connecting shaft through hole is located at the top of both the left and right battery bushing blocks, and a fixing strip is located on the upper outer wall of both the left and right battery bushing blocks. The left and right battery bushing blocks have connecting shaft through holes at their lower parts, and fixing strip slots on their lower outer side walls. A square battery is placed between the left and right battery bushing blocks. One end of the connecting shaft passes through the connecting shaft through holes at the upper or lower parts of the left and right battery bushing blocks and connects to the connecting shaft through holes at the upper or lower parts of the left or right tray front plate, and is fixed to the upper or lower parts of the left or right tray front plate. The bushing fixing strip is embedded in the fixing strip slots on the upper or lower outer side walls of the left and right battery bushing blocks, and fixes the left and right battery bushing blocks together.
2. The square battery non-constraint tray according to claim 1, characterized in that: The left or right front plate of the tray has several connecting shaft through holes at its upper and lower parts. The left front plate has a groove inside, and the groove has a cavity in the middle. The left front plate has slots on both sides.
3. The square battery non-constraint tray according to claim 2, characterized in that: The lower outer walls of the left or right front panel of the pallet are provided with limiting grooves.
4. The square battery non-constraint tray according to claim 1, characterized in that: The lower outer side walls of the left and right battery bushing blocks are provided with limiting grooves.