Battery cell module pressurization system

Abstract

The utility model provides a battery cell module pressurization system which comprises a rack, a conveying device, a carrying table device, a truss, a jacking device and a pressurization device, and the pressurization device is arranged on the truss and used for pressing the upper end face, the end plate face and the side face of a battery cell module; the jacking device is arranged on the rack, located on the inner side of the conveying device, located below the carrying table device and the pressurizing device and used for changing the distance between the conveying device and the carrying table device. According to the utility model, the jacking device and the carrying table device are accurately positioned, the carrying table device is pushed to be separated from the conveying device, and after the carrying table device is lifted to a preset height, the cell module is pressurized, so that the subsequent pressurizing process is prevented from being interfered by the conveying device.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core module assembly, in particular to a battery core module pressurization system. Background Art

[0002] With the continuous development of the energy storage industry, the production of battery modules has also increased accordingly. The battery module is an indispensable component in the design of the battery pack. Traditional battery grouping mostly uses manpower, which has high labor costs, low production efficiency, and high risk of errors. During the stacking process of the current square battery module, the dimensional accuracy of the battery module is difficult to guarantee, and the first-time pass rate of the battery module is not high.

[0003] Chinese patent number CN111509283B provides a square shell battery module pressurizing system, including a conveying device, a tooling plate structure, a feeding station and a pressurizing station. When the tooling plate structure is located at the feeding station, the conveying device drives the tooling plate structure to move to the pressurizing station, first presses the upper end surface of the battery cell module, then clamps it with a push plate and a baffle, and flattens the side panel after manually installing the side panel.

[0004] However, the first bottom plate in the tooling plate structure in the above-mentioned module pressurizing system is arranged on the conveying device, and is not separated from the conveying device when the module is pressurized at the pressurizing station. It is impossible to avoid the conveying device interfering with the module pressurizing process, thereby affecting the working efficiency and the first-time pass rate of the battery cell module pressurization. Utility Model Content

[0005] In view of this, the utility model proposes a battery module pressurization system.

[0006] The technical solution of the utility model is implemented as follows: The utility model provides a battery module pressurization system, including: a frame, a conveying device, a platform device, a truss, a lifting device and a pressurization device, wherein:

[0007] The conveying device is extended along the first direction and arranged on the frame, the carrier device and the conveying device can be separated, and the carrier device is used to place the battery cell module;

[0008] The truss is vertically arranged on the frame, and the pressurizing device is arranged on the truss to press the upper end surface, end plate surface and side surface of the battery cell module;

[0009] The lifting device is arranged on the frame, located on the inner side of the conveying device, and below the stage device and the pressurizing device, and is used to change the distance between the conveying device and the stage device along a second direction, and the second direction is perpendicular to the first direction.

[0010] Preferably, the lifting device comprises a lifting cylinder, at least one sliding rod, a lifting bottom plate and a positioning plate, wherein:

[0011] The positioning plate is connected to the sliding rod, and the positioning plate is located above the lifting bottom plate. After the lifting device is lifted into place, the positioning plate is tightly fitted with the lower end surface of the stage device;

[0012] The lifting cylinder is arranged on the lower end surface of the lifting base plate, the sliding rod is arranged between the lifting base plate and the positioning plate, and the lifting cylinder is used to drive the sliding rod, the lifting base plate and the positioning plate to drive the carrier device to lift and lower along the second direction.

[0013] Preferably, the lifting device also includes an anti-rebound cylinder and a U-shaped block. The U-shaped block is connected to the piston rod of the anti-rebound cylinder. The anti-rebound cylinder is arranged on the upper end surface of the lifting base plate. When the anti-rebound cylinder drives the U-shaped block to extend, the sliding rod is inserted into the U-shaped mouth of the U-shaped block.

[0014] Further preferably, the lifting device also includes a floating block, which is arranged on the lower end surface of the positioning plate. The floating block is an elastic body, which is used to buffer the force of the lifting and lowering of the positioning plate and support the carrier device. The anti-reverse cylinder pushes the U-shaped block to extend into the lower end surface of the floating block and fit tightly with the floating block.

[0015] Further preferably, the lifting device also includes two limit blocks, and the two limit blocks are arranged on the upper end surface of the lifting base plate in parallel along the third direction. When the U-shaped block is extended, it is clamped between the two limit blocks, and the third direction, the first direction and the second direction are perpendicular to each other.

[0016] Preferably, the platform device comprises a platform body and a positioning pin hole, and the lifting device further comprises a positioning pin, and the positioning pin is arranged on the upper end surface of the positioning plate;

[0017] The platform body is arranged on the conveying device, and the positioning pin hole is arranged on the lower end surface of the platform body;

[0018] The positioning pin is inserted into the positioning pin hole to align the positioning plate with the stage device, thereby achieving the positioning of the lifting device and the stage device.

[0019] Further preferably, the pressurizing device includes an upper end surface clamping assembly, and the upper end surface clamping assembly includes a first cylinder, a first support plate and a plurality of rollers, and the first cylinder drives the first support plate to drive the rollers to pressurize the upper end surface of the battery cell module.

[0020] Preferably, the pressurizing device further includes two end plate surface pressing assemblies and two side surface pressing assemblies, wherein the end plate surface pressing assemblies are used to pressurize the end plate surfaces of the battery cell module, and the side surface pressing assemblies are used to pressurize the sides of the battery cell module.

[0021] Preferably, the lifting device further comprises a positioning sensor, and the positioning sensor is arranged on the positioning plate and is used to detect whether the positioning plate is lifted or lowered to a designated position.

[0022] The battery module pressurization system of the utility model has the following beneficial effects compared with the prior art:

[0023] (1) The lifting device and the carrier device are precisely positioned by setting the positioning plate and the positioning pin in the lifting device in coordination with the positioning pin hole in the carrier device. The positioning plate of the lifting device is tightly fitted with the lower end surface of the carrier device, and the carrier device is pushed away from the conveying device. After it is raised to a predetermined height, the battery cell module is pressurized to prevent the subsequent pressurization process from being disturbed by the conveying device.

[0024] (2) An anti-reverse cylinder is set up to push the U-shaped block under the floating block to continue to support the positioning plate, thereby preventing the piston rod and sliding rod of the lifting cylinder from descending and causing the carrier device to descend back to the conveying device, thereby maintaining the stability of the position of the carrier device when pressurized; the floating block is elastic and has a buffering and protective effect on the internal structure of the lifting device, reducing mechanical friction and damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a front view of the overall structure of the battery module pressurization system of the utility model;

[0027] Figure 2 A three-dimensional diagram of the overall structure of the battery module pressurization system of the utility model;

[0028] Figure 3 It is a front view of the jacking device of the utility model;

[0029] Figure 4 and Figure 5 It is a three-dimensional diagram of the jacking device of the utility model;

[0030] Figure 6 It is a front view of the upper end surface pressing assembly of the utility model;

[0031] Figure 7 It is a top view of the end plate surface clamping assembly and the side surface clamping assembly of the utility model;

[0032] Specific annotations: 1-frame, 2-conveying device, 3-carrier device, 4-truss, 5-lifting device, 6-pressurizing device, 51-lifting cylinder, 52-sliding rod, 53-lifting base plate, 54-positioning plate, 55-positioning pin, 56-anti-reverse cylinder, 57-floating block, 58-U-shaped block, 59a-limiting side plate, 59b-limiting block, 59c-positioning sensor, 31-carrier body, 32-positioning pin hole, 61-upper end surface clamping assembly, 62-end plate surface clamping assembly, 63-side clamping assembly, 611-first cylinder, 612-first support plate, 613-roller. DETAILED DESCRIPTION

[0033] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] like Figure 1 and Figure 2 As shown, in the embodiment of the utility model, the battery cell module pressurizing system includes: a frame 1, a conveying device 2, a platform device 3, a truss 4, a lifting device 5 and a pressurizing device 6, wherein the conveying device 2 is extended along a first direction and is arranged on the frame 1, the platform device 3 and the conveying device 2 can be separated, and the platform device 3 is used to place the battery cell module.

[0035] The truss 4 is vertically arranged on the frame 1, and the pressurizing device 6 is arranged on the truss 4, and is used to press the upper end face, end plate face and side face of the battery cell module; the lifting device 5 is arranged on the frame 1, located on the inner side of the conveying device 2, and located below the stage device 3 and the pressurizing device 6, and is used to change the distance between the conveying device 2 and the stage device 3 along the second direction, and the second direction is perpendicular to the first direction.

[0036] In this embodiment, the conveying device 2 is a double-speed chain, and the carrier device 3 is a pallet. The length of the pallet along the third direction is less than the spacing between the outer sides of the double-speed chains at both ends, and greater than the spacing between the inner sides. The battery cell module on the pallet is transported to the middle of the pressurizing device 6 and above the jacking device 5 by the double-speed chain, and the cylinder is blocked to stop. There are limit clamps and limit guides on the pallet, the bottom of the battery cell module is on the limit guide, and the end plate surface of the battery cell module is clamped by the corresponding limit clamp. The battery cell module on the pallet is fixed in a predetermined position, and rollers are respectively provided at the four corners of the bottom surface of the pallet to reduce the friction between the carrier device 3 and the conveying device 2.

[0037] In a preferred embodiment, Figure 3 As shown, the lifting device 5 includes a lifting cylinder 51, at least one sliding rod 52, a lifting bottom plate 53 and a positioning plate 54, wherein the positioning plate 54 is connected to the sliding rod 52, and the positioning plate 54 is located above the lifting bottom plate 53. After the lifting device 5 is lifted to the right position, the positioning plate 54 is tightly fitted with the lower end surface of the stage device 3. The lifting device 5 also includes a positioning sensor 59c, which is arranged on the positioning plate 54 and is used to detect whether the positioning plate 54 is lifted to a specified position.

[0038] The lifting cylinder 51 is arranged on the lower end surface of the lifting base plate 53, and the sliding rod 52 is arranged between the lifting base plate 53 and the positioning plate 54. The lifting cylinder 51 is used to drive the sliding rod 52, the lifting base plate 53 and the positioning plate 54 to drive the carrier device 3 to rise and fall along the second direction.

[0039] The lifting device 5 also includes an anti-recoil cylinder 56, a floating block 57 and a U-shaped block 58, wherein the floating block 57 is arranged on the lower end surface of the positioning plate 54, and the floating block 57 is an elastic body, which is used to buffer the force of the lifting and lowering of the positioning plate 54 and support the stage device 3.

[0040] The U-shaped block 58 is connected to the piston rod of the anti-rebound cylinder 56, and the anti-rebound cylinder 56 is arranged on the upper end surface of the lifting base plate 53. The anti-rebound cylinder 56 pushes the U-shaped block 58 to extend into the lower end surface of the floating block 57 and fits tightly with it. When the U-shaped block 58 is extended, the sliding rod 52 is inserted into the U-shaped mouth of the U-shaped block 58.

[0041] The lifting device and the stage device are precisely positioned, and the positioning plate of the lifting device fits tightly with the lower end surface of the stage device, pushing the stage device out of the conveying device. The lifting cylinder extends out at the same time when the pallet stops positioning, and accurately positions the pallet to lift it out of the working surface 5.9mm on the speed chain to avoid interference from the conveying device during the subsequent pressurization process; the anti-reverse cylinder extends out and inserts the U-shaped quick-reach into the back of the floating block to prevent the piston rod and sliding rod of the lifting cylinder from descending, causing the stage device to lower back onto the conveying device, thereby maintaining the stability of the position of the stage device during pressurization; the floating block is elastic, and has a buffering and protective effect on the internal structure of the lifting device, reducing mechanical friction and damage.

[0042] In a more preferred embodiment, Figure 4 and Figure 5 As shown, the lifting device 5 also includes a limiting side plate 59a with a hole and two limiting blocks 59b, wherein the limiting side plate 59a is vertically arranged on the upper end surface of the lifting base plate 53, and the piston rod of the anti-return cylinder 56 can movably pass through the hole of the limiting side plate 59a when extending and retracting.

[0043] The two limit block limit side plates are arranged parallel to the upper end surface of the lifting base plate 53 along the third direction, and the U-shaped block 58 is clamped between the two limit blocks 59b when extending into the lower end surface of the floating block 57. The third direction, the first direction and the second direction are perpendicular to each other.

[0044] In this embodiment, the carrier device 3 includes a carrier body 31 and a positioning pin hole 32, and the lifting device 5 also includes a positioning pin 55, and the positioning pin 55 is arranged on the upper end surface of the positioning plate 54; the carrier body 31 is arranged on the conveying device 2, and the positioning pin hole 32 is arranged on the lower end surface of the carrier body 31; the positioning pin 55 is inserted into the positioning pin hole 32 to align the positioning plate 54 and the carrier device 3, thereby realizing the positioning of the lifting device 5 and the carrier device 3.

[0045] In a more preferred embodiment, Figure 6 As shown, the pressurizing device 6 includes an upper end surface clamping assembly 61, and the upper end surface clamping assembly 61 includes a first cylinder 611, a first support plate 612 and a plurality of rollers 613. The first cylinder 611 drives the first support plate 612 to drive the rollers 613 to pressurize the upper end surface of the battery cell module.

[0046] like Figure 7 As shown, in this embodiment, the pressurizing device 6 also includes two end plate surface clamping assemblies 62 and two side surface clamping assemblies 63, wherein the end plate surface clamping assemblies 62 are used to pressurize the end plate surfaces of the battery cell module, and the side surface clamping assemblies 63 are used to pressurize the sides of the battery cell module.

[0047] The operating steps of the battery cell module pressurizing system of the utility model are as follows: S1, the conveying device transports the battery cell module on the stage device to the pressurizing station along the first direction. S2, the lifting device is positioned and aligned with the stage device, and then the lifting device pushes the stage device to separate from the conveying device, and the stage device is raised to a predetermined pressurizing height. S3, after detecting that the stage device has reached the predetermined position, the upper end face clamping assembly, the end plate surface clamping assembly, and the side surface clamping assembly respectively pressurize the upper end face, end plate surface, and side surface of the battery cell module simultaneously.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery module pressurization system, characterized in that: include: A frame (1), a conveying device (2), a platform device (3), a truss (4), a lifting device (5) and a pressurizing device (6), wherein: The conveying device (2) is arranged on the frame (1) and extends along a first direction; the carrier device (3) and the conveying device (2) can be arranged separately; and the carrier device (3) is used to place the battery cell module; The truss (4) is vertically arranged on the frame (1), and the pressurizing device (6) is arranged on the truss (4) and is used to press the upper end surface, end plate surface and side surface of the battery cell module; The lifting device (5) is arranged on the frame (1), located on the inner side of the conveying device (2), and below the platform device (3) and the pressurizing device (6), and is used to change the distance between the conveying device (2) and the platform device (3) along a second direction, and the second direction is perpendicular to the first direction.

2. The battery module pressurization system according to claim 1, characterized in that: The lifting device (5) comprises a lifting cylinder (51), a sliding rod (52), a lifting bottom plate (53) and a positioning plate (54), wherein: The positioning plate (54) is connected to the sliding rod (52), and the positioning plate (54) is located above the lifting bottom plate (53). After the lifting device (5) is lifted into place, the positioning plate (54) is tightly fitted with the lower end surface of the platform device (3); The lifting cylinder (51) is arranged on the lower end surface of the lifting base plate (53), and the sliding rod (52) is arranged between the lifting base plate (53) and the positioning plate (54). The lifting cylinder (51) is used to drive the sliding rod (52), the lifting base plate (53) and the positioning plate (54) to drive the carrier device (3) to move up and down along the second direction.

3. A battery cell module pressurization system as claimed in claim 2, characterized in that: The lifting device (5) further comprises an anti-reverse cylinder (56) and a U-shaped block (58), wherein: The piston rod of the anti-rebound cylinder (56) is connected to the U-shaped block (58). The anti-rebound cylinder (56) is arranged on the upper end surface of the lifting base plate (53). When the anti-rebound cylinder (56) drives the U-shaped block (58) to extend, the sliding rod (52) is inserted into the U-shaped opening of the U-shaped block (58).

4. A battery module pressurization system as claimed in claim 3, characterized in that: The lifting device (5) also includes a floating block (57), which is arranged on the lower end surface of the positioning plate (54). The floating block (57) is an elastic body and is used to buffer the force of the lifting and lowering of the positioning plate (54) and support the carrier device (3). The anti-reverse cylinder (56) pushes the U-shaped block (58) to extend into the lower end surface of the floating block (57) and fit closely with the floating block (57).

5. The battery module pressurization system according to claim 3, characterized in that: The lifting device (5) also includes a limiting side plate (59a), which is vertically arranged on the upper end surface of the lifting base plate (53), and the piston rod of the anti-recoil cylinder (56) can movably pass through the hole of the limiting side plate (59a) when it is extended or retracted.

6. The battery module pressurization system according to claim 3, characterized in that: The lifting device (5) further comprises two limit blocks (59b), the two limit blocks (59b) being arranged on the upper end surface of the lifting base plate (53) in parallel along a third direction, the U-shaped block (58) being clamped between the two limit blocks (59b) when extended, and the third direction, the first direction and the second direction being perpendicular to each other.

7. The battery module pressurization system according to claim 2, characterized in that: The platform device (3) comprises a platform body (31) and a positioning pin hole (32), and the lifting device (5) further comprises a positioning pin (55), wherein the positioning pin (55) is arranged on the upper end surface of the positioning plate (54); The carrier body (31) is arranged on the conveying device (2), and the positioning pin hole (32) is arranged on the lower end surface of the carrier body (31); The positioning pin (55) is inserted into the positioning pin hole (32) to align the positioning plate (54) and the carrier device (3), thereby achieving positioning of the lifting device (5) and the carrier device (3).

8. The battery module pressurization system according to claim 1, characterized in that: The pressurizing device (6) comprises an upper end surface pressing assembly (61), wherein the upper end surface pressing assembly (61) comprises a first cylinder (611), a first support plate (612) and a plurality of rollers (613), wherein the first cylinder (611) drives the first support plate (612) to drive the rollers (613) to pressurize the upper end surface of the battery cell module.

9. The battery module pressurization system according to claim 8, characterized in that: The pressurizing device (6) further comprises two end plate surface pressing assemblies (62) and two side surface pressing assemblies (63), wherein the end plate surface pressing assemblies (62) are used to pressurize the end plate surface of the battery cell module, and the side surface pressing assemblies (63) are used to pressurize the side surface of the battery cell module.

10. A battery module pressurization system as claimed in claim 2, characterized in that: The lifting device (5) further comprises a positioning sensor (59c), wherein the positioning sensor (59c) is arranged on the positioning plate (54) and is used to detect whether the positioning plate (54) is lifted or lowered to a designated position.

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