A pressure-holding tray device for a lithium battery module

Abstract

The present invention discloses a pressure-holding tray device for a lithium battery module, which comprises a main body bracket, a module bearing plate, and two module end pressing components. The module bearing plate is fixed on the main body bracket, and the two module end pressing components are both connected to the main body bracket and are respectively located at both ends of the module bearing plate; each module end pressing component includes a sliding driving mechanism and a sliding suction plate component. The sliding driving mechanism is fixed on the main body bracket, and the sliding suction plate component is connected to the sliding driving mechanism. The inner adsorption surfaces of the two sliding suction plate components face each other. The distance between the two module end pressing components of the present invention can be adjusted, and the suction plate can adsorb and position the end plate of the lithium battery module, so as to meet the pressure-holding requirements of lithium battery modules of different specifications.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery production, and specifically to a pressure-holding tray device for a lithium battery module. Background Art

[0002] As a crucial module tooling carrier in the production of lithium battery modules, the pressure-holding method and stability after pressure-holding of the lithium battery tray device are very important. Ensuring the pressure-holding consistency of the lithium battery module is a prerequisite for ensuring the welding of the end plate and side plate of the lithium battery module. At the same time, considering the requirements of compatibility for multiple specifications of lithium battery modules, a lithium battery tray device that can be compatible with and fix different specifications of lithium battery modules is needed. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a pressure-holding tray device for a lithium battery module to meet the pressure-holding requirements of different specifications of lithium battery modules.

[0004] The technical solution of the present invention is as follows:

[0005] A pressure-holding tray device for a lithium battery module includes a main body bracket, a module bearing plate, and two module end pressing components. The module bearing plate is fixed on the main body bracket, and the two module end pressing components are both connected to the main body bracket and are respectively located at both ends of the module bearing plate; each module end pressing component includes a sliding driving mechanism and a sliding suction plate component. The sliding driving mechanism is fixed on the main body bracket, the sliding suction plate component is connected to the sliding driving mechanism, and the inner adsorption surfaces of the two sliding suction plate components face each other.

[0006] On the upper end surface of the module bearing plate and in the middle, there is a fixed module middle end plate fixing column.

[0007] The sliding suction plate component includes a vertically arranged sliding plate, a pressing plate, and a negative pressure suction plate. The pressing plate and the negative pressure suction plate are respectively located on the outer side and the inner side of the sliding plate. The sliding plate is connected to and driven by the sliding driving mechanism. A plurality of guide rods are vertically penetrated through the sliding plate. The pressing plate and the negative pressure suction plate are respectively fixed to the outer ends and the inner ends of the plurality of guide rods. Both the module bearing plate and the negative pressure suction plate are of an insulating plate structure, and the inner adsorption surface of the negative pressure suction plate is a profiling adsorption surface that closely fits the outer surface of the end plate of the lithium battery module.

[0008] Each of the module end pressing components further includes a sliding guide rail fixed on the main body bracket. The bottom end of the sliding plate is fixed to the sliding seat of the sliding guide rail, and a guide rail clamp is provided on the sliding seat of the sliding guide rail.

[0009] The sliding driving mechanism is a horizontally arranged lead screw transmission pair. The axis of the lead screw transmission pair is parallel to the axis of the sliding guide rail, and the bottom end of the sliding plate is fixedly connected to the lead screw nut of the lead screw transmission pair.

[0010] The bottom end of the sliding plate is fixedly connected with a horizontal mounting plate. There are two sliding guide rails. The lead screw transmission pair is located between the two sliding guide rails. The two ends of the horizontal mounting plate are respectively fixedly connected with the sliding seats on the two sliding guide rails, and the middle part of the horizontal mounting plate is fixedly connected with the lead screw nut of the lead screw transmission pair.

[0011] The bottom end of the negative pressure suction plate is fixed with a suction plate sliding rail. The axis of the suction plate sliding rail is parallel to the axis of the guide rod. The upper end surface of the horizontal mounting plate is fixed with a suction plate chute and a slide rail clamp. The suction plate sliding rail is embedded in the suction plate chute and the chute of the slide rail clamp.

[0012] A plurality of return springs are connected between the sliding plate and the negative pressure suction plate.

[0013] A thrust locking assembly is connected to the sliding plate. The thrust locking assembly includes a telescopic cylinder, a horizontal moving plate and a thrust rod. The telescopic cylinder is fixed on the sliding plate. The piston rod of the telescopic cylinder extends horizontally and is parallel to the sliding plate. The horizontal moving plate is located inside the sliding plate and is parallel to the sliding plate. The horizontal moving plate is fixedly connected with the piston rod of the telescopic cylinder. Positioning holes are arranged on both the horizontal moving plate and the sliding plate. The inner end of the thrust rod is fixed on the outer side surface of the negative pressure suction plate. When the telescopic cylinder is in a contracted state, the positioning holes on the horizontal moving plate and the sliding plate overlap each other, and the axis of the thrust rod overlaps with the axis of the positioning hole.

[0014] The horizontal moving plate is a strip-shaped plate. A plurality of positioning holes arranged in a row are arranged on the strip-shaped plate. A plurality of thrust rods are fixed on the outer side surface of the negative pressure suction plate. When the telescopic cylinder is in a contracted state, the axes of the plurality of thrust rods respectively overlap with the axes of the corresponding positioning holes.

[0015] Advantages of the present invention:

[0016] (1). By arranging a suction plate to adsorb and position the end plate of the lithium battery module, the present invention avoids the problem of the end plate falling off during the extrusion process of the lithium battery module, and improves the stability of the automated production of the lithium battery module.

[0017] (2). The distance between the two module end pressing assemblies of the present invention can be adjusted movably, realizing the compatibility adjustment in the length direction of the lithium battery module, and at the same time combining with the clamp to achieve the purpose of pressure maintaining and positioning.

[0018] (3). The present invention is provided with a thrust locking assembly. After an external force drives the suction plate through a pressing plate, and the suction plate drives the thrust rod to move to a set position, the thrust rod moves out of the positioning hole, and drives the horizontal moving plate to move horizontally. The thrust rod and the positioning hole form a dislocation structure. After the external force is removed, the outer end of the thrust rod contacts and limits the horizontal moving plate, realizing the final positioning of the suction plate and completing the purpose of pressure maintaining and positioning of the lithium battery module. Description of the drawings

[0019] Figure 1 It is the top view of the present invention.

[0020] Figure 2 It is the structural schematic diagram of the end pressing assembly of the module of the present invention.

[0021] Figure 3 It is the structural schematic diagram of the negative pressure suction plate of the present invention connected to the sliding plate.

[0022] Figure 4 It is the structural schematic diagram of the sliding plate of the present invention.

[0023] Reference numerals: 1 - main body bracket, 2 - module bearing plate, 3 - module end pressing assembly, 4 - middle plate fixing column of the module, 5 - 2P9S lithium battery module, 6 - middle end plate of the lithium battery module, 7 - end plate of the lithium battery module, 31 - sliding guide rail, 32 - lead screw transmission pair, 33 - sliding plate, 34 - pressing plate, 35 - negative pressure suction plate, 36 - rail clamp, 37 - horizontal mounting plate, 38 - linear bearing, 39 - guide rod, 310 - return spring, 311 - suction plate slide rail, 312 - suction plate chute, 313 - slide rail clamp, 314 - telescopic cylinder, 315 - horizontal moving plate, 316 - stop push rod, 317 - connecting block, 318 - horizontal guide hole, 319 - positioning hole. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] See Figures 1 - 4 , a pressure - maintaining tray device for a lithium - battery module, comprising a main body bracket 1, a module bearing plate 2, two module end pressing assemblies 3 and a middle plate fixing column 4 of the module. The module bearing plate 2 is fixed on the main body bracket 1 and is of an insulating plate structure. The two module end pressing assemblies 3 are both connected to the main body bracket 1 and are respectively located at both ends of the module bearing plate 2. The middle plate fixing column 4 of the module is fixed on the middle part of the upper end surface of the module bearing plate 2;

[0026] Each module end pressing assembly 3 includes two sliding guide rails 31, a lead screw transmission pair 32, a sliding plate 33, a pressing plate 34, and a negative pressure suction plate 35. The bearing supports of the two sliding guide rails 31 and the lead screw transmission pair 32 are fixed to the main body bracket 1. The sliding plate 33, the pressing plate 34, and the negative pressure suction plate 35 are all vertically arranged. The negative pressure suction plate 35 is of an insulating plate structure. The pressing plate 34 and the negative pressure suction plate 35 are located on the outer side and the inner side of the sliding plate 33 respectively. The inner adsorption surface of the negative pressure suction plate 35 is a profiling adsorption surface that closely fits the outer surface of the end plate 7 of the lithium battery module. The profiling adsorption surfaces of the negative pressure suction plates 35 of the two module end pressing assemblies face each other.

[0027] The axes of the two sliding guide rails 31 and the axis of the lead screw transmission pair 32 are all parallel to the axis of the module bearing plate 2. The lead screw transmission pair 32 is located between the two sliding guide rails 31. A guide rail clamp 36 is provided on the slide block of each sliding guide rail 31. The bottom end of the sliding plate 33 is fixedly connected with a horizontal mounting plate 37. The two ends of the horizontal mounting plate 37 are respectively fixedly connected with the slide blocks on the two sliding guide rails 31. The middle part of the horizontal mounting plate 37 is fixedly connected with the lead screw nut of the lead screw transmission pair 32. A linear bearing 38 is provided at each of the four corners of the sliding plate 33. A guide rod 39 perpendicular to the sliding plate 33 is provided on each linear bearing 38. The pressing plate 34 and the negative pressure suction plate 35 are respectively fixed to the outer ends and the inner ends of a plurality of guide rods 39. A plurality of return springs 310 are connected between the sliding plate 33 and the negative pressure suction plate 35. A suction plate slide rail 311 is fixed to the bottom end of the negative pressure suction plate 35. The axis of the suction plate slide rail 311 is parallel to the axis of the guide rod 39. A suction plate chute 312 and two slide rail clamps 313 are fixed to the upper end surface of the horizontal mounting plate 37. The suction plate slide rail 311 is embedded in the suction plate chute 312 and the chutes of the two slide rail clamps 313.

[0028] A thrust locking assembly is further connected to the sliding plate 33. The thrust locking assembly includes a telescopic cylinder 314, a horizontal moving plate 315, and two thrust rods 316. The telescopic cylinder 314 is fixed to the outer side surface of the sliding plate 33. The piston rod of the telescopic cylinder 314 extends horizontally and is parallel to the sliding plate 33. A connecting block 317 is fixedly connected to the piston rod of the telescopic cylinder 314. A horizontal guide hole 318 is provided on the sliding plate 33. The horizontal moving plate 315 is a strip-shaped plate. The horizontal moving plate 315 is located inside the sliding plate 33 and is parallel to the sliding plate 33. The connecting block 317 passes through the horizontal guide hole 318 and is fixedly connected to the horizontal moving plate 315. Two positioning holes 319 at the same horizontal height are provided on both the sliding plate 33 and the horizontal moving plate 315. The inner ends of the two thrust rods 316 are both fixed to the outer side surface of the negative pressure suction plate 35. When the return spring 310 is not stressed and the telescopic cylinder 314 is in a contracted state, the outer end of each thrust rod 316 sequentially passes through the positioning hole 319 on the horizontal moving plate 315 and the positioning hole 319 on the sliding plate 33.

[0029] Working principle of the present invention:

[0030] (1) First, place the 2P9S lithium battery module 5, the middle end plate 6 of the lithium battery module, and the two end plates 7 of the lithium battery module on the module carrier plate 2. The middle end plate 6 of the lithium battery module is positioned by passing through the middle end plate fixing column 4 of the module. The two end plates 7 of the lithium battery module are adsorbed on the profiling adsorption surfaces of the negative pressure suction plates 35 of the two module end pressing components 3. Then, an external force drives the lead screw transmission pairs 32 of the two module end pressing components 3 to rotate synchronously, so that the two module end pressing components 3 move towards each other along the sliding guide rail 31 to a set position. After the opposite movement ends, the guide rail clamps 36 are locked and positioned;

[0031] (2) Externally squeeze the pressing plates 34 of the two module end pressing components 3. The two pressing plates 34 drive the two negative pressure suction plates 35 to move towards each other through the corresponding guide rods 39 respectively, that is, drive the two end plates 7 of the lithium battery module to move to a set distance. At this time, the two stop push rods 316 have respectively moved out of the positioning holes 319 on the sliding plate 33 and the horizontal moving plate 315;

[0032] (3) The telescopic cylinder 314 extends. The telescopic cylinder 314 drives the horizontal moving plate 315 to move horizontally, so that the two stop push rods 316 form a dislocation structure with the positioning holes 319. Then release the external force. Under the action of the restoring force of the return spring 310, the return spring 310 pulls the negative pressure suction plate 35 to move horizontally towards the sliding plate 33. The outer ends of the two stop push rods 316 resist and contact the horizontal moving plate 315. At this time, the negative pressure suction plate 35 moves to the set pressure maintaining position. Finally, the slide rail clamps 313 are locked and positioned, and the 2P9S lithium battery module completes the entire pressure maintaining process;

[0033] (4) After the 2P9S lithium battery module completes process actions such as welding in the pressure maintaining tray device, unlock the tray. The two negative pressure suction plates 35 are released from negative pressure, and the two end plates 7 of the lithium battery module are separated from the two negative pressure suction plates 35. An external force drives the lead screw transmission pairs 32 of the two module end pressing components 3 to rotate synchronously, so that the two module end pressing components 3 move in the reverse direction along the sliding guide rail 31. After the two module end pressing components 3 are reset, they stop. Then the telescopic cylinder 314 drives the horizontal moving plate 315 to retract and reset. Under the action of the restoring force of the return spring 310, the outer ends of the two stop push rods 316 re-pass through the positioning holes 319 on the horizontal moving plate 315 and the sliding plate 33 to achieve reset, and wait for the next pressure maintaining operation.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure-holding tray device for a lithium battery module, characterized in that: it includes a main body bracket, a module carrier plate, and two module end pressing components. The module carrier plate is fixed on the main body bracket, and the two module end pressing components are both connected to the main body bracket and are respectively located at both ends of the module carrier plate; each module end pressing component includes a sliding driving mechanism and a sliding suction plate component. The sliding driving mechanism is fixed on the main body bracket, the sliding suction plate component is connected to the sliding driving mechanism, and the inner adsorption surfaces of the two sliding suction plate components face each other; the sliding suction plate component includes a vertically arranged sliding plate, a pressing plate, and a negative pressure suction plate. The pressing plate and the negative pressure suction plate are respectively located on the outer side and the inner side of the sliding plate. The sliding plate is connected and driven by the sliding driving mechanism. A plurality of guide rods are vertically penetrated through the sliding plate. The pressing plate and the negative pressure suction plate are respectively fixed on the outer ends and the inner ends of the plurality of guide rods. Both the module carrier plate and the negative pressure suction plate are of an insulating plate structure, and the inner adsorption surface of the negative pressure suction plate is a profiling adsorption surface that closely fits the outer surface of the end plate of the lithium battery module; each of the module end pressing components further includes a sliding guide rail fixed on the main body bracket. The bottom end of the sliding plate is fixed on the slider of the sliding guide rail, and a rail clamp is arranged on the slider of the sliding guide rail; a thrust locking component is connected to the sliding plate. The thrust locking component includes a telescopic cylinder, a horizontal moving plate, and a thrust rod. The telescopic cylinder is fixed on the sliding plate. The piston rod of the telescopic cylinder extends horizontally and is parallel to the sliding plate. The horizontal moving plate is located on the inner side of the sliding plate and is parallel to the sliding plate. The horizontal moving plate is fixedly connected to the piston rod of the telescopic cylinder. Positioning holes are arranged on both the horizontal moving plate and the sliding plate. The inner end of the thrust rod is fixed on the outer side surface of the negative pressure suction plate. When the telescopic cylinder is in a contracted state, the positioning holes on the horizontal moving plate and the sliding plate overlap with each other, and the axis of the thrust rod overlaps with the axis of the positioning hole.

2. A pressure-holding tray device for a lithium battery module according to claim 1, characterized in that: a module middle end plate fixing column is fixed in the middle on the upper end surface of the module carrier plate.

3. A pressure-holding tray device for a lithium battery module according to claim 1, characterized in that: the sliding driving mechanism is a horizontally arranged lead screw transmission pair. The axis of the lead screw transmission pair is parallel to the axis of the sliding guide rail, and the bottom end of the sliding plate is fixedly connected to the lead screw nut of the lead screw transmission pair.

4. A pressure-holding tray device for a lithium battery module according to claim 3, characterized in that: a horizontal mounting plate is fixedly connected to the bottom end of the sliding plate. There are two sliding guide rails. The lead screw transmission pair is located between the two sliding guide rails. The two ends of the horizontal mounting plate are respectively fixedly connected to the sliders on the two sliding guide rails, and the middle of the horizontal mounting plate is fixedly connected to the lead screw nut of the lead screw transmission pair.

5. A pressure-holding tray device for a lithium battery module according to claim 4, characterized in that: a suction plate slide rail is fixed on the bottom end of the negative pressure suction plate. The axis of the suction plate slide rail is parallel to the axis of the guide rod. A suction plate chute and a slide rail clamp are fixed on the upper end surface of the horizontal mounting plate. The suction plate slide rail is embedded in the suction plate chute and the chute of the slide rail clamp.

6. A pressure-holding tray device for a lithium battery module according to claim 1, characterized in that: A plurality of return springs are connected between the sliding plate and the negative pressure suction plate.

7. A pressure-holding tray device for a lithium battery module according to claim 1, characterized in that: The horizontal moving plate is a strip-shaped plate, and a plurality of positioning holes arranged in a row are provided on the strip-shaped plate. A plurality of stop push rods are fixed on the outer side surface of the negative pressure suction plate. When the telescopic cylinder is in a contracted state, the axes of the plurality of stop push rods respectively overlap with the axes of the corresponding positioning holes.

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