Module end plate, battery module and module grabbing device

Abstract

The invention discloses a module end plate, a battery module and a module grabbing device.The module end plate comprises an end plate body, a cross beam is arranged on the end plate body, a limiting support is arranged on the cross beam, and a bundling groove is further formed in the end plate body; the limiting supports are oppositely arranged, intervals are arranged between the limiting supports, and limiting parts are arranged at the ends of the limiting supports. According to the module end plate, the battery module and the module grabbing device, the structural design is reasonable, the module grabbing and releasing operation is convenient, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of battery handling, and in particular, relates to a module end plate, a battery module and a module grabbing device. Background Art

[0002] The most important power system component of new energy vehicles is the power battery pack, which is mainly composed of battery modules and other components, especially the battery module. The energy of new energy electric vehicles comes from the power battery pack, which in turn comes from the battery module. Multiple battery modules make up the power battery pack. The production and assembly of battery modules affect the grouping efficiency of the power battery pack.

[0003] Currently, the online transportation of modules is a major problem in the production process. In the industry, modules are generally composed of two end plates and a majority of battery cells. The end plates are connected to another end plate by long bolts to fix the battery cells. Some modules weigh dozens of kilograms, and the module end plates are not specially designed, which makes the module transportation inconvenient and the module boxing efficiency is low.

[0004] In the existing technology, large factories mostly use intelligent machines to grab modules when the modules are put into production. However, for smaller battery pack manufacturers, the investment in purchasing intelligent production lines is relatively large. The current power battery pack method of using tooling to grab modules is more prominent, and the grabbing of small modules mostly adopts manual handling. It is necessary to use a lightweight tooling that allows workers to easily grab and release modules without the assistance of intelligent machines, thereby improving work efficiency and the efficiency of the entire PACK assembly.

[0005] The utility model patent with publication number CN220244747U was published on December 26, 2023. It is named as a power battery module clamping and handling tool, including a frame, a clamping mechanism, a positioning mechanism and a positioning mechanism. The frame is provided with a clamping mechanism and a positioning mechanism on both sides; the clamping mechanism includes a grabbing assembly and a pre-tightening drive assembly. The grabbing assembly has a pre-tightening end that can extend into a hole of a module, and the pre-tightening end can expand or contract. The pre-tightening drive assembly is connected to the grabbing assembly; the positioning mechanism is connected to the clamping mechanism and has a positioning tip that can extend into the hole of the module; the positioning mechanism is connected to each clamping mechanism and each positioning mechanism. This power battery module clamping and handling tool cannot solve the technical problems recorded above. Summary of the invention

[0006] The purpose of the present invention is to address the deficiencies in the prior art and to provide a module end plate, a battery module and a module grabbing device with reasonable structural design, convenient module grabbing and releasing operations, and improved work efficiency.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is:

[0008] The module end plate comprises an end plate body, a cross beam is arranged on the end plate body, a limit bracket is arranged on the cross beam, and a bundling groove is also arranged on the end plate body; the limit brackets are arranged relatively, and there are intervals between the limit brackets, and a limit part is arranged at the end of the limit bracket.

[0009] Vertical beams are provided on both sides of the end plate body, and bundling holes are provided on the vertical beams. The bundling grooves include a first bundling groove and a second bundling groove. The first bundling groove and the second bundling groove are arranged in parallel, the first bundling groove is located between the bundling holes, and the second bundling groove is located below the cross beam.

[0010] A hoisting hole is provided on the top of the vertical beam, and the hoisting hole is located above the bundling hole.

[0011] Both ends of the crossbeam are provided with mounting holes, and the mounting holes are waist holes.

[0012] The battery module comprises a single battery cell, a strapping belt and the module end plate mentioned above.

[0013] The module grasping device is used for grasping the above-mentioned battery module, and the device includes a static support and a dynamic support, the static support includes a guide rod, the dynamic support includes a sleeve rod, the sleeve rod is sleeved on the guide rod, the top and bottom of the guide rod are respectively provided with a support beam and a stop block, the sleeve rod is located between the support beam and the stop block, and the bottom of the sleeve rod is movably connected to the support block.

[0014] A transverse axis is provided on both sides of the bottom end of the sleeve rod, the top end of the support block is hinged to the transverse axis, the support block is symmetrically arranged about the sleeve rod, the support block is located on both sides of the stopper, the support block is a bent structure, the support block includes a first support surface and a second support surface, the stopper is a trapezoidal structure, and the stopper includes a support surface.

[0015] The support beam is located above the battery module, the guide rod is located on the side of the module end plate, the support block is located in the interval, the first support surface is in contact with the support surface, and the second support surface is horizontally arranged and abuts against the lower end surface of the limiting part.

[0016] The dynamic support also includes a cross bar, which is located below the support beam. The cross bar is fixedly connected to the sleeve rod to form a U-shaped structure, and the cross bar and the sleeve rod are an integrated structure.

[0017] The support beam is a triangular structure, and a reinforcing rod is provided in the middle of the support beam.

[0018] The technical effects of the present invention are as follows: the module end plate, battery module and module grabbing device of the present invention are adopted, the module end plate structure is reasonably designed, and the production requirements of bundling, transportation, temporary lifting and module box fixing are met, the fixation reliability of the battery module of the strapping belt is improved, the production efficiency is improved, and the safety is higher; the module end plate can be combined with the use of the module grabbing device, the static bracket and the dynamic bracket are cleverly designed, and the design of the limit bracket is combined to realize the grabbing and releasing of the module, the operation process is simple, safe and fast, and it is convenient for manual operation in the module online process, and the battery module transfer and transportation without the assistance of intelligent machines is realized, the assembly time of this process is reduced, and the efficiency of the entire PACK assembly is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] This specification includes the following drawings, which show the following contents:

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the module end plate of the present invention;

[0021] Figure 2 It is a schematic diagram of the main structure of the module end plate of the present invention;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the entire module of the present invention;

[0023] Figure 4 It is a three-dimensional schematic diagram of an extraction module of a module grabbing device of the present invention;

[0024] Figure 5 is a front view of a module extraction device of the present invention;

[0025] Figure 6 is a three-dimensional schematic diagram of a module gripping device releasing a module of the present invention;

[0026] Figure 7 is a schematic diagram of a release state of the module grabbing device of the present invention;

[0027] Figure 8 Schematic diagram of the extraction state of the module grabbing device of the present invention

[0028] Fig. 9 It is a three-dimensional structural schematic diagram of the static support of the present invention;

[0029] Fig.10 It is a three-dimensional structural schematic diagram of the dynamic support of the present invention;

[0030] Fig.11 It is a three-dimensional structural schematic diagram of the movable support of the present invention removing the support block;

[0031] Fig.12 yes Fig.11 A top view of

[0032] Fig.13 is a schematic diagram of the three-dimensional structure of the support block;

[0033] The markings in the figure are: 1. Module end plate; 11. End plate body; 12. Crossbeam; 121. Mounting hole; 13. Vertical beam; 132. Lifting hole; 131. Bundling hole; 14. Limit bracket; 141. Interval; 142. Limit part; 15. Bundling groove; 2. Static bracket; 21. Guide rod; 22. Support beam; 23. Stop block; 24. Support surface; 25. Reinforcement rod; 3. Dynamic bracket; 31. Sleeve rod; 32. Cross bar; 33. Support block; 34. Cylindrical cavity; 35. Horizontal axis; 36. First support surface, 37. Second support surface; 4. Single cell; 5. Bundling tape. DETAILED DESCRIPTION

[0034] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and facilitating their implementation.

[0035] like Figures 1 to 3 As shown, the module end plate 1 includes an end plate body 11, a cross beam 12 is provided on the end plate body 11, a limit bracket 14 is provided on the cross beam 12, and a bundling groove 15 is also provided on the end plate body 11; the limit brackets 14 are relatively arranged, and intervals 141 are provided between the limit brackets 14, and a limit portion 142 is provided at the end of the limit bracket 14.

[0036] The bottom of the limiting bracket 14 is fixedly connected to the cross beam 12. There are two limiting brackets 14, and they are symmetrically arranged about the middle of the cross beam 12. The setting of the bundling groove 15 limits the movement of the bundling belt 5, so that it will not easily loosen. A certain distance is left between the limiting brackets 14 to form a gap 141, which serves as a hoisting position for the grasping device and can be used for the grasping device to grasp and release. The limiting bracket 14 is an L-shaped or T-shaped structure. The limiting portion 142 is the horizontal end of the top of the limiting bracket 14, so that a smaller opening area is formed at the top of the hoisting position. Since the support block 33 is movably connected, the support block 33 can pass through this place. The support block 33 is blocked by the stopper 23, and the support block 33 can be prevented from detaching from this place, thereby realizing the grasping of the module. In the production process of the battery module, the module end plate 1 is combined with a grasping device to greatly improve the handling efficiency.

[0037] like Figures 1 to 3As shown, vertical beams 13 are provided on both sides of the end plate body 11, and bundling holes 131 are provided on the vertical beams 13. The bundling grooves 15 include a first bundling groove 15 and a second bundling groove 15. The first bundling groove 15 and the second bundling groove 15 are arranged in parallel, the first bundling groove 15 is located between the bundling holes 131, and the second bundling groove 15 is located below the cross beam 12. In the above structure, the bundling strap 5 located in the first bundling groove 15 is also restricted by the multiple bundling holes 131, and the bundling strap 5 located in the second bundling groove 15 is also blocked by the cross beam 12. The two bundling straps 5 are more difficult to detach, and the module stability is higher. The two bundling grooves 15 are respectively located at the upper and lower parts of the end plate, and the uniformity of the fastening is good, and there will be no spatial impact on the structure on the end plate. The restriction of the end plate to the battery cell is reliable, which is conducive to improving the fixed stability of the module.

[0038] like Figure 1 As shown, a hoisting hole 132 is provided on the top of the vertical beam 13, and the hoisting hole 132 is located above the bundling hole 131. The vertical beam 13 provides an installation position for the hoisting hole 132, eliminating the need to install redundant components, and the use of the hoisting hole 132 will not affect the bundling belt 5. When the module is temporarily transported manually, or when the module needs to be adjusted and moved out after being placed in the box, the hoisting hole 132 can be used for hoisting and transporting, which is simple, safe and fast.

[0039] like Figure 1 As shown, mounting holes 121 are provided at both ends of the crossbeam 12, and the mounting holes 121 are waist holes. During the process of fixing the module to the box, there is a mounting hole 121 on each side of the crossbeam 12, and the mounting holes 121 are waist holes, which can ensure that after the module is put into the box, due to tolerance reasons, the module is displaced, and the position of the mounting hole 121 deviates from the position of the box bolt hole. By moving the module, the position of the box bolt hole can be quickly found, which greatly saves the man-hours of fixing the module.

[0040] like Figure 3 As shown, the battery module includes a single cell 4, a strapping tape 5 and the above-mentioned module end plate 1. A plurality of single cells 4 are arranged in sequence to form a battery pack. The module end plate 1 is arranged on the outside of both ends of the battery pack and is fixed by two strapping tapes 5. The strapping tape 5 is used to strap the module and passes through the strapping hole 131. When the strapping tape 5 is tightened and locked, the strapping tape 5 fits tightly with the strapping groove 15, and the strapping tape 5 is basically flush with the surface of the end plate body 11. When the robot uses the tooling hoisting module and the fixed module, it will not be affected by the interference caused by the strapping tape 5. This strapping method can ensure that the production efficiency is improved and the safety is higher in the large-scale automated production process. Among them, the material of the end plate body 11 is metal or high-strength plastic. The side of the end plate body 11 in contact with the battery cell is a vertical smooth plane. The thickness of the strapping tape 5 is 1 or 2 mm. The strapping tape 5 is made of steel or plastic.

[0041] like Figures 4 to 13As shown, the module grasping device is used for grasping the above-mentioned battery module, and the device includes a static support 2 and a dynamic support 3. The static support 2 includes a guide rod 21, and the dynamic support 3 includes a sleeve rod 31. The sleeve rod 31 is sleeved on the guide rod 21. The top and bottom of the guide rod 21 are respectively provided with a support beam 22 and a stop block 23. The sleeve rod 31 is located between the support beam 22 and the stop block 23, and the bottom of the sleeve rod 31 is movably connected to the support block 33. The guide rod 21 limits the radial movement of the sleeve rod 31 and guides the movement of the sleeve rod 31. The sleeve rod 31 is a rectangular parallelepiped with a cylindrical cavity 34 inside. The cylindrical cavity 34 passes through the sleeve rod 31 from top to bottom. The outer diameter of the guide rod 21 is smaller than the diameter of the cylindrical cavity 34, so as not to affect the movement of the movable bracket 3. The guide rod 21 is longer than the sleeve rod 31, and the movable bracket 3 can move in the vertical direction along the guide rod 21. The support beam 22 is the upper limit of the vertical movement of the movable bracket 3, and the stopper 23 is the lower limit of the vertical movement of the movable bracket 3. The connection method of the support beam 22, the stopper 23 and the guide rod 21 is welding or threaded fastening. During installation, the guide rod 21 is first passed through the sleeve rod 31, and then the support beam 22 and the stopper 23 are respectively installed at both ends of the guide rod 21.

[0042] like Figure 11-13 As shown, a transverse axis 35 is provided on both sides of the bottom end of the sleeve rod 31, and the top end of the support block 33 is hinged to the transverse axis 35. The support block 33 is symmetrically arranged about the sleeve rod 31, and the support block 33 is located on both sides of the stopper 23. The support block 33 is a bent structure, and the support block 33 includes a first support surface 36 and a second support surface 37. The stopper 23 is a trapezoidal structure, and the stopper 23 includes a support surface 24. The support surface 24 corresponds to the first support surface 36, and the second support surface 37 is used to contact and support the lower end surface of the limiting portion 142. The hinged end of the support block 33 is a cylinder, and its length is less than the length of the transverse axis 35, which can avoid contact damage between the two. The angle between the first support surface 36 and the second support surface 37 is in the range of 90° to 180°, and the angle of the support surface 24 needs to be adapted according to the above angle range. When the first support surface 36 is in parallel contact with the support surface 24, and the second support surface 37 is horizontal, the contact area of ​​the support block 33 with the limiting bracket 14 is the largest, and the supporting effect is the best.

[0043] like Figure 4 and Figure 5 As shown, the support beam 22 is located above the battery module, the guide rod 21 is located on the side of the module end plate 1, the support block 33 is located in the interval 141, the first support surface 36 is in contact with the support surface 24, and the second support surface 37 is horizontally arranged and abuts against the lower end surface of the limiting portion 142. The above structure is the use posture of the module grasping device when grasping the battery module. The support block 33 extends into the hoisting position, and the battery module is grasped by the contact support of the support block 33 on the lower end surface of the limiting bracket 14. At this time, the battery module can be moved as a whole by controlling the static bracket 2.

[0044] like Fig.10 As shown, the dynamic support 3 also includes a cross bar 32, which is located below the support beam 22. The cross bar 32 is fixedly connected to the sleeve rod 31 to form a U-shaped structure, and the cross bar 32 and the sleeve rod 31 are an integral structure. The cross bar 32 is designed below the support beam 22, so that the operator can easily control the movement of the dynamic support 3 by hand. The setting of the cross bar 32 realizes the synchronous movement of the two sleeve rods 31, ensuring that the two end plates can be grasped or released at the same time, simplifying the operation process, and is conducive to ensuring the balance of the battery module when grasping the module.

[0045] like Fig. 9 As shown, the support beam 22 is a triangular structure, and a reinforcing rod 25 is provided in the middle of the support beam 22. The above structure can improve the structural strength of the support beam 22. At the same time, a reinforcing rod can be provided at the turning point of the dynamic support 3 to further improve the strength.

[0046] The bundling method of the bundling strap 5 is as follows: place the module end plate 1 at both ends of the battery pack, use two bundling straps 5 to bundling and fix, the bundling strap 5 presses the bundling groove 15 and passes through the bundling hole 131, tightens and locks the bundling strap 5, the bundling strap 5 fits tightly with the bundling groove 15, and the bundling strap 5 is basically flush with the surface of the end plate body 11.

[0047] The method of using the module grabbing device is as follows: after the end plate and the module are assembled and tied, the operator holds the grabbing device and moves the movable bracket 3 up along the guide rod 21. Since there is no obstruction of the stopper 23, the support block 33 sags and closes under the influence of gravity, and the end distance of the two support blocks 33 is reduced, keeping the movable bracket 3 and the static bracket 2 relatively still. Then the grabbing device is moved downward as a whole, so that the stopper 23 and the support block 33 pass through the gap 141 between the limit brackets 14, and then the force applied to the movable bracket 3 is released. The movable bracket 3 moves downward along the guide rod 21 due to gravity, and the support block 33 rotates under the obstruction of the stopper 23, and the support block 33 is unfolded. The end distance of the two support blocks 33 is increased. The distance is greater than the horizontal distance between the ends of the two limiting parts 142. At this time, the second supporting surface 37 is in a parallel posture. Then the operator only needs to control the static bracket 2 and pull the support beam 22 upward. The first supporting surface 36 contacts the supporting surface 24, and the second supporting surface 37 contacts and supports the lower end surface of the limiting part 142. The support block 33 is blocked by the limiting part 142 and cannot escape. In addition, the static bracket 2 and the dynamic bracket 3 have rigid structures, and the support block 33 cannot escape in the horizontal direction. Since the dynamic bracket 3 is a U-shaped structure, the above operation simultaneously completes the grasping process of the two module end plates 1 at both ends of the battery pack, that is, the two ends of the battery module are stably grasped and fixed, and the handling stability of the battery module is guaranteed.

[0048] The module end plate, battery module and module grabbing device, the module end plate 1 has a reasonable structural design, which meets the production requirements of bundling, transportation, temporary lifting and module box fixing, improves the fixation reliability of the battery module of the strapping belt 5, improves the production efficiency and has higher safety; the module end plate 1 can be combined with the use of the module grabbing device, the static bracket 2 and the dynamic bracket 3 are cleverly designed, combined with the design of the limit bracket 14, to achieve the grabbing and releasing of the module, the operation process is simple, safe and fast, and it is convenient for manual operation in the module online process, and realizes the transfer and transportation of battery modules without the assistance of intelligent machines, reduces the assembly time of this process, and improves the efficiency of the entire PACK assembly.

[0049] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A module end plate, characterized in that: The invention comprises an end plate body (11), a cross beam (12) is provided on the end plate body (11), a limit bracket (14) is provided on the cross beam (12), and a binding groove (15) is also provided on the end plate body (11); the limit brackets (14) are arranged relatively to each other, a gap (141) is provided between the limit brackets (14), and a limit portion (142) is provided at the end of the limit bracket (14).

2. The module end plate according to claim 1, characterized in that: Vertical beams (13) are provided on both sides of the end plate body (11), and bundling holes (131) are provided on the vertical beams (13). The bundling grooves (15) include a first bundling groove (15) and a second bundling groove (15), and the first bundling groove (15) and the second bundling groove (15) are arranged in parallel, the first bundling groove (15) is located between the bundling holes (131), and the second bundling groove (15) is located below the cross beam (12).

3. The module end plate according to claim 2, characterized in that: A hoisting hole (132) is provided on the top of the vertical beam (13), and the hoisting hole (132) is located above the bundling hole (131).

4. The module end plate according to claim 3, characterized in that: Both ends of the crossbeam (12) are provided with mounting holes (121), and the mounting holes (121) are waist holes.

5. A battery module, comprising a single battery cell (4), characterized in that: It also comprises a strapping belt (5) and a module end plate as claimed in any one of claims 1 to 4.

6. A module grabbing device, characterized in that: The device is used for grasping the battery module described in claim 5, and the device comprises a static support (2) and a dynamic support (3), the static support (2) comprises a guide rod (21), and the dynamic support (3) comprises a sleeve rod (31), the sleeve rod (31) is sleeved on the guide rod (21), and the top and bottom of the guide rod (21) are respectively provided with a support beam (22) and a stopper (23), the sleeve rod (31) is located between the support beam (22) and the stopper (23), and the bottom of the sleeve rod (31) is movably connected to the support block (33).

7. The module grabbing device according to claim 6, characterized in that: Transverse axes (35) are provided on both sides of the bottom end of the sleeve rod (31); the top end of the support block (33) is hinged to the transverse axis (35); the support block (33) is symmetrically arranged with respect to the sleeve rod (31); the support block (33) is located on both sides of the stopper (23); the support block (33) is a bent structure; the support block (33) comprises a first support surface (36) and a second support surface (37); the stopper (23) is a trapezoidal structure; the stopper (23) comprises a support surface (24).

8. The module grabbing device according to claim 7, characterized in that: The support beam (22) is located above the battery module, the guide rod (21) is located on the side of the module end plate (1), the support block (33) is located in the interval (141), the first support surface (36) is in contact with the support surface (24), and the second support surface (37) is horizontally arranged and abuts against the lower end surface of the limiting portion (142).

9. The module grabbing device according to claim 6, characterized in that: The dynamic support (3) further comprises a cross bar (32), wherein the cross bar (32) is located below the support beam (22), the cross bar (32) is fixedly connected to the sleeve rod (31) to form a U-shaped structure, and the cross bar (32) and the sleeve rod (31) are an integral structure.

10. The module grabbing device according to claim 6, characterized in that: The support beam (22) is a triangular structure, and a reinforcing rod (25) is provided in the middle of the support beam (22).

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