Battery module hoisting clamp

Abstract

The utility model discloses a battery module hoisting clamp which comprises a screw rod mechanism, a connecting rod mechanism and a clamping mechanism, and the screw rod mechanism is provided with a moving end capable of moving up and down; the connecting rod mechanism comprises a first connecting rod assembly and a second connecting rod assembly, the first connecting rod assembly and the second connecting rod assembly are connected to the two sides of the moving end respectively, and the first connecting rod assembly and the second connecting rod assembly can move inwards or outwards at the same time under the action of the moving end; the clamping mechanism comprises two clamping blocks, the two clamping blocks are arranged at the ends, away from the moving end, of the first connecting rod assembly and the second connecting rod assembly correspondingly, and the distance between the two clamping blocks changes along with movement changes of the first connecting rod assembly and the second connecting rod assembly. The hoisting device solves the technical problems that the bottom surface of the module is easy to deform and the module is easy to collapse to influence the quality of the battery in the existing hoisting mode for the battery module.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to a battery module hoisting fixture. Background Art

[0002] A battery module is an intermediate product between a battery cell and a pack, formed by combining battery cells connected in series and / or parallel and equipped with a single-cell monitoring and management device. It is typically strapped with steel straps and end plates. After assembly, the battery modules need to be handled to facilitate moving them from production lines to production lines and hoisting multiple modules into packs, completing the assembly of the battery system.

[0003] The existing lifting method for battery modules is generally to directly lift them using the lifting holes on the end plates on both sides of the battery module. Due to the heavy weight of the battery module, this lifting method will cause varying degrees of deformation of the bottom surface of the module, affecting subsequent assembly work; and if the individual battery cells in the module are not firmly bonded, it may also cause the module to collapse, and in severe cases, it may even directly damage the module and make it unusable. Utility Model Content

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and to propose a battery module lifting fixture that can apply pressure on both sides of the battery module end plate, thereby solving the technical problems of the existing lifting method for battery modules, such as the easy deformation of the bottom surface of the module and the easy collapse of the module, which affects the quality of the battery.

[0005] In order to solve the above technical problems, the technical solutions of the present utility model are as follows:

[0006] A battery module lifting fixture, comprising:

[0007] a screw mechanism having a moving end that can move up and down;

[0008] A connecting rod mechanism includes a first connecting rod assembly and a second connecting rod assembly, wherein the first connecting rod assembly and the second connecting rod assembly are respectively connected to both sides of the moving end, and the first connecting rod assembly and the second connecting rod assembly can move toward or away from each other under the action of the moving end;

[0009] The clamping mechanism includes two clamping blocks, which are respectively arranged at one end of the first connecting rod assembly and the second connecting rod assembly away from the moving end, and the distance between the two clamping blocks changes with the movement of the first connecting rod assembly and the second connecting rod assembly.

[0010] In some embodiments, the screw mechanism includes a matching screw and a nut, the nut forms the moving end, and the first connecting rod assembly and the second connecting rod assembly are respectively connected to two sides of the nut.

[0011] In some embodiments, the screw mechanism also includes a bushing and a connecting seat. The bushing is sleeved on the outside of the nut, and an annular groove is formed on the outer surface of the bushing along its circumferential direction. The connecting seat is arranged in the annular groove, and the two sides of the connecting seat are respectively hinged to the first connecting rod assembly and the second connecting rod assembly.

[0012] In some embodiments, the screw mechanism further includes a limit block, which is disposed at the lower end of the screw.

[0013] In some embodiments, the first connecting rod assembly includes a first straight rod and a first bending rod, the two ends of the first straight rod are respectively hinged to the connecting seat and the first bending rod, and the other end of the first bending rod is hinged to one of the clamping blocks.

[0014] In some embodiments, the second connecting rod assembly includes a second straight rod and a second bending rod, the two ends of the second straight rod are respectively hinged to the connecting seat and the second bending rod, and the other end of the second bending rod is hinged to another one of the clamping blocks.

[0015] In some embodiments, the first bending rod and the second bending rod each include two bending portions, the two bending points close to the screw rod are first bending portions protruding inward relative to the first bending rod and the second bending rod, and the two bending points away from the screw rod are second bending portions protruding outward relative to the first bending rod and the second bending rod.

[0016] In some embodiments, the connecting rod mechanism further includes a crossbeam, both ends of the crossbeam are hinged to the two first bending portions respectively, and a through hole is formed in the middle of the crossbeam, and the screw rod passes through the through hole.

[0017] In some embodiments, the clamping mechanism further includes two hinged seats, which are respectively fixed to the outer sides of the two clamping blocks, and the two hinged seats are respectively hinged to one end of the first connecting rod assembly and the second connecting rod assembly away from the moving end.

[0018] In some embodiments, the clamping mechanism further includes a plurality of hooks, which are respectively fixed to the inner side surfaces of the two clamping blocks and are used to connect to the end plates on both sides of the battery module.

[0019] Compared with the prior art, the beneficial effects of the present invention mainly include:

[0020] The utility model provides a battery module lifting clamp, which can drive the first connecting rod assembly and the second connecting rod assembly to move inward or outward at the same time through the provided screw mechanism, thereby driving the two clamping blocks to move, so that the distance between the two clamping blocks increases or decreases; in this way, when the two clamping blocks are placed on both sides of the battery module, the battery module can be clamped by changing the distance between the two clamping blocks, and the pressure applied on both sides of the battery module can compress the battery cells to avoid collapse; at the same time, the risk of deformation of the bottom surface of the clamped battery module is avoided, thereby improving the assembly quality of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the overall structure of the clamp described in this embodiment;

[0022] Figure 2 is a structural diagram of the first straight rod in this embodiment;

[0023] Figure 3 is a structural diagram of the first bending rod of this embodiment;

[0024] Figure 4 is a structural diagram of the second straight rod in this embodiment;

[0025] Figure 5 is a structural diagram of the second bending rod in this embodiment;

[0026] Figure 6 2 is a structural diagram of the clamping mechanism described in this embodiment;

[0027] Figure 7 Schematic diagram of the usage state of this embodiment.

[0028] The following are the descriptions of the reference numerals:

[0029] 100, screw mechanism, 110, screw, 120, nut, 130, bushing, 131, annular groove, 140, connecting seat, 150, limit block;

[0030] 200, connecting rod mechanism, 210, first connecting rod assembly, 211, first straight rod, 212, first bending rod, 220, second connecting rod assembly, 221, second straight rod, 222, second bending rod, 230, crossbeam, 231, through hole, 240, first bending portion, 250, second bending portion;

[0031] 300, clamping mechanism, 310, clamping block, 320, hinged seat, 330, hook;

[0032] 400, afterburner rod;

[0033] 500. Rings. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] In response to the technical problems in the existing lifting method for battery modules, such as the easy deformation of the bottom surface of the module and the easy collapse of the module, which affects the quality of the battery, the utility model provides a battery module lifting clamp. By applying pressure to the end plates on both sides of the battery module, the above technical problems can be avoided, thereby achieving the purpose of improving the quality of battery assembly.

[0036] It should be noted that the clamp described in the present invention is used for but not limited to the lifting of battery modules. For the sake of convenience, the application of the clamp to battery modules is only used as an example for explanation. The principle of applying the clamp to other types of lifting objects is essentially the same as that of applying it to battery modules, and will not be repeated here.

[0037] like Figure 1 As shown, this embodiment relates to a battery module lifting fixture, including a screw mechanism 100, a connecting rod mechanism 200 and a clamping mechanism 300, wherein the screw mechanism 100 has a movable end that can move up and down, and the connecting rod mechanism 200 includes a first connecting rod assembly 210 and a second connecting rod assembly 220, and the first connecting rod assembly 210 and the second connecting rod assembly 220 are respectively connected to both sides of the movable end, so that the first connecting rod assembly 210 and the second connecting rod assembly 220 can move toward or away from each other under the action of the movable end, and the clamping mechanism 300 includes two clamping blocks 310, and the two clamping blocks 310 are respectively arranged at one end of the first connecting rod assembly 210 and the second connecting rod assembly 220 away from the movable end, so that the distance between the two can change with the movement of the first connecting rod assembly 210 and the second connecting rod assembly 220.

[0038] When the battery module hoisting fixture provided by this embodiment is used to hoist the battery module, the screw mechanism 100 is rotated so that the moving end of the screw mechanism 100 moves up and down, thereby driving the first connecting rod assembly 210 and the second connecting rod assembly 220 to move outward at the same time, thereby increasing the distance between the two clamping blocks 310. In this state, the fixture is placed on the end plates on both sides of the battery module, and then the screw mechanism 100 is rotated in the opposite direction so that the moving end of the screw mechanism 100 moves in the opposite direction, thereby driving the first connecting rod assembly 210 and the second connecting rod assembly 220 to move inward at the same time, thereby reducing the distance between the two clamping blocks 310. In this state, the battery module can be clamped on both sides for lifting. Compared with the prior art, the pressure applied to both sides of the battery module by this embodiment can compress the battery cell to prevent collapse; at the same time, it also avoids the risk of deformation of the bottom surface of the clamped battery module, thereby improving the assembly quality of the battery.

[0039] In one embodiment, the screw mechanism 100 includes a matching screw 110 and a nut 120, and the nut 120 forms the moving end of the screw mechanism 100, and can move up and down along the screw 110 under the rotation of the screw 110; the screw mechanism 100 also includes a bushing 130 and a connecting seat 140, and the bushing 130 is sleeved on the outside of the nut 120, and the outer surface of the bushing 130 is formed with an annular groove 131 along its circumferential direction, and the connecting seat 140 is arranged in the annular groove 131, and the two sides of the connecting seat 140 are respectively hinged to the first connecting rod assembly 210 and the second connecting rod assembly 220.

[0040] In the above technical solution, the up and down movement of the nut 120 can drive the up and down movement of the bushing 130, and then drive the up and down movement of the connecting seat 140, thereby causing the first connecting rod assembly 210 and the second connecting rod assembly 220 to move.

[0041] In one embodiment, the screw mechanism 100 further includes a limit block 150 . The limit block 150 is disposed at the lower end of the screw 110 to limit the maximum downward movement distance of the screw 110 .

[0042] In one embodiment, the first connecting rod assembly 210 includes a first straight rod 211 and a first bending rod 212, and pin holes are formed at both ends of the first straight rod 211. The two ends of the first straight rod 211 are hinged to the connecting seat 140 and the first bending rod 212 through the cooperation of the pin shaft and the pin hole, and the other end of the first bending rod 212 is hinged to one of the clamping blocks 310.

[0043] It is understandable that both ends of the first bending rod 212 are also formed with pin holes for hinge connection. The structure of the first straight rod 211 is as follows: Figure 2As shown, the structure of the first bending rod 212 is as follows Figure 3 shown.

[0044] In one embodiment, the second connecting rod assembly 220 includes a second straight rod 221 and a second bending rod 222, and pin holes are formed at both ends of the second straight rod 221. The two ends of the second straight rod 221 are hinged to the connecting seat 140 and the second bending rod 222 through the cooperation of the pin shaft and the pin hole, and the other end of the second bending rod 222 is hinged to another one of the clamping blocks 310.

[0045] It is understandable that both ends of the second bending rod 222 are also formed with pin holes for hinge connection. The structural diagram of the second straight rod 221 is shown in FIG. Figure 4 As shown, the structure of the second bending rod 222 is as follows Figure 5 shown.

[0046] In one embodiment, the first bending rod 212 and the second bending rod 222 each include two bending portions, the two bending points close to the screw rod 110 are first bending portions 240 protruding inward relative to the first bending rod 212 and the second bending rod 222, and the two bending points away from the screw rod 110 are second bending portions 250 protruding outward relative to the first bending rod 212 and the second bending rod 222; the connecting rod mechanism 200 also includes a crossbeam 230, the two ends of the crossbeam 230 are respectively hinged to the two first bending portions 240, and a through hole 231 is formed in the middle of the crossbeam 230, and the screw rod 110 passes through the through hole 231.

[0047] It can be understood that the number of the bending portions of the first bending rod 212 and the second bending rod 222 can be designed according to actual needs.

[0048] In one embodiment, Figure 6 As shown, the clamping mechanism 300 includes two clamping blocks 310, two hinged seats 320 and a plurality of hooks 330, the two hinged seats 320 are respectively fixed to the outer sides of the two clamping blocks 310, and the plurality of hooks 330 are respectively fixed to the inner sides of the two clamping blocks 310, and the two hinged seats 320 are respectively hinged to the first bending rod 212 of the first connecting rod assembly 210 and the second bending rod 222 of the second connecting rod assembly 220 at one end away from the moving end, and the end plates on both sides of the battery module are respectively provided with corresponding lifting holes, and the hooks 330 are inserted into the lifting holes for stable lifting.

[0049] In one embodiment, a lifting ring 500 is further provided on the top of the screw rod 110 to facilitate lifting, and a force rod can also be provided on the upper part of the screw rod 110 to apply force to the screw rod 110 .

[0050] like Figure 7 As shown, when the lifting fixture described in this embodiment is used to lift the battery module, a force is applied to the screw 110 by the force rod 400 to rotate the screw 110, thereby causing the moving end of the screw mechanism 100 to move up and down, thereby driving the first connecting rod assembly 210 and the second connecting rod assembly 220 to move outward at the same time, so that the distance between the two clamping blocks 310 increases. In this state, the fixture is placed on the end plates on both sides of the battery module, and then the screw mechanism 100 is rotated in the opposite direction so that the moving end of the screw mechanism 100 moves in the opposite direction, thereby driving the first connecting rod assembly 210 and the second connecting rod assembly 220 to move inward at the same time, thereby reducing the distance between the two clamping blocks 310. In this state, the battery module can be clamped on both sides and lifted by the lifting ring 500.

[0051] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A battery module lifting fixture, characterized in that: include: a screw mechanism having a moving end that can move up and down; A connecting rod mechanism includes a first connecting rod assembly and a second connecting rod assembly, wherein the first connecting rod assembly and the second connecting rod assembly are respectively connected to both sides of the moving end, and the first connecting rod assembly and the second connecting rod assembly can move toward or away from each other under the action of the moving end; The clamping mechanism includes two clamping blocks, which are respectively arranged at one end of the first connecting rod assembly and the second connecting rod assembly away from the moving end, and the distance between the two clamping blocks changes with the movement of the first connecting rod assembly and the second connecting rod assembly.

2. The battery module lifting fixture according to claim 1, characterized in that: The screw mechanism includes a matching screw and a nut, the nut forms the moving end, and the first connecting rod assembly and the second connecting rod assembly are respectively connected to two sides of the nut.

3. The battery module lifting fixture according to claim 2, characterized in that: The screw mechanism also includes a bushing and a connecting seat. The bushing is sleeved on the outside of the nut. An annular groove is formed on the outer surface of the bushing along its circumferential direction. The connecting seat is arranged in the annular groove. The two sides of the connecting seat are respectively hinged to the first connecting rod assembly and the second connecting rod assembly.

4. The battery module lifting fixture according to claim 3, characterized in that: The screw mechanism further includes a limit block, which is arranged at the lower end of the screw.

5. The battery module lifting fixture according to claim 3, characterized in that: The first connecting rod assembly includes a first straight rod and a first bending rod, two ends of the first straight rod are hinged to the connecting seat and the first bending rod respectively, and the other end of the first bending rod is hinged to one of the clamping blocks.

6. The battery module hoisting fixture according to claim 5, characterized in that: The second connecting rod assembly includes a second straight rod and a second bending rod, two ends of the second straight rod are hinged to the connecting seat and the second bending rod respectively, and the other end of the second bending rod is hinged to another one of the clamping blocks.

7. The battery module hoisting fixture according to claim 6, characterized in that: The first bending rod and the second bending rod each include two bending portions, the two bending points close to the screw rod are the first bending portions protruding inward relative to the first bending rod and the second bending rod, and the two bending points away from the screw rod are the second bending portions protruding outward relative to the first bending rod and the second bending rod.

8. The battery module hoisting fixture according to claim 7, characterized in that: The connecting rod mechanism further includes a crossbeam, both ends of which are hinged to the two first bending portions respectively, and a through hole is formed in the middle of the crossbeam, and the screw rod passes through the through hole.

9. The battery module hoisting fixture according to claim 1, characterized in that: The clamping mechanism further includes two hinged seats, which are respectively fixed to the outer sides of the two clamping blocks, and are respectively hinged to one end of the first connecting rod assembly and the second connecting rod assembly away from the moving end.

10. The battery module hoisting fixture according to claim 1, characterized in that: The clamping mechanism further comprises a plurality of hooks, which are respectively fixed to the inner side surfaces of the two clamping blocks and are used to connect with the end plates on both sides of the battery module.

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