CN116315013A

CN116315013A - Leveling device, tray and transport vechicle of battery module

Info

Publication number: CN116315013A
Application number: CN202310288678.3A
Authority: CN
Inventors: 李冰; 张建华; 郭登旺; 邓雄光; 杨小龙
Original assignee: Superstar Shenzhen Automation Co ltd
Current assignee: Superstar Shenzhen Automation Co ltd
Priority date: 2023-03-16
Filing date: 2023-03-16
Publication date: 2023-06-23

Abstract

The application relates to leveling device, tray and transport vechicle of battery module, leveling device includes: the support seat comprises a pair of brackets which are oppositely arranged and a support plate which is connected between the brackets, the support plate comprises a groove which extends along the length direction of the support plate and a row of fixed grids which are positioned on at least one side of the groove, and a battery is contained between every two adjacent fixed grids in the row of fixed grids; the first leveling mechanism is movably arranged in the groove and is used for leveling the main planes of the batteries; and the second leveling mechanism comprises a pair of swinging assemblies connected with the pair of brackets respectively and a pair of adjusting rods connected between the pair of swinging assemblies, wherein the pair of adjusting rods are positioned on two sides of the supporting seat along the width direction of the supporting seat, and can swing towards the battery module under the driving of the pair of swinging assemblies for leveling the side planes of the batteries. This application can carry out the flattening to battery module automatically and handle, effectively improves battery module's stacking effect.

Description

Leveling device, tray and transport vechicle of battery module

Technical Field

The application relates to the technical field of power batteries, in particular to a leveling device, a tray and a transport vehicle of a battery module.

Background

With the development of new energy automobile industry, the power battery is widely applied, and the demand of the power battery is larger and larger, so that the production requirement on the power battery is higher. The power battery comprises a plurality of battery modules, and each battery module is composed of a plurality of batteries in parallel connection and series connection.

In the manufacturing process of the power battery, in order to facilitate management and maintenance, the pre-stacked battery modules are required to be placed into a fixture tool for stacking, and a plurality of batteries are required to be leveled before stacking. The utility model provides a stacking tool of battery module among the related art will stack the mechanism and set up on mounting platform slope, set up the support frame and be L type structure simultaneously, the opening slope of support frame upwards, utilize collet and backup plate to mutually support from two face electric cores, under the effect of gravity, on the one hand, can improve the sticky compactedness between stacking the electric core, guarantee the clamp of stacking, on the other hand makes the side alignment when stacking the electric core with the help of the centre gripping of first splint and second splint, guarantees the roughness and the regularity of utmost point cylinder when stacking. However, when the stacking tool is used, the battery cells are required to be placed in the stacking mechanism according to a preset angle, and the requirement on an operation robot or an operator is high.

Disclosure of Invention

An object of the application is to provide a leveling device, tray and transport vechicle of battery module, it can carry out the leveling to battery module automatically and handle, effectively improves battery module's stacking effect.

In a first aspect, an embodiment of the present application provides a leveling device for a battery module, the battery module includes a plurality of batteries that set up side by side, the battery includes the principal plane that sets up along self thickness direction both sides and the side plane that sets up along self length direction both sides, the leveling device includes: the support seat comprises a pair of brackets which are oppositely arranged and a support plate which is connected between the brackets, the support plate comprises a groove which extends along the length direction of the support plate and a row of fixed grids which are positioned on at least one side of the groove, and a battery is contained between every two adjacent fixed grids in the row of fixed grids; the first leveling mechanism is movably arranged in the groove and is used for leveling the main planes of the batteries; and the second leveling mechanism comprises a pair of swinging assemblies connected with the pair of brackets respectively and a pair of adjusting rods connected between the pair of swinging assemblies, wherein the pair of adjusting rods are positioned on two sides of the supporting seat along the width direction of the supporting seat, and can swing towards the battery module under the driving of the pair of swinging assemblies for leveling the side planes of the batteries.

In one possible implementation, the first leveling mechanism includes a first power source, a sliding assembly, and a movable grid connected to the sliding assembly, where the movable grids are in one-to-one correspondence with the fixed grids, and the first power source pushes the sliding assembly to move along the groove and level the main planes of the batteries through the movable grids.

In one possible implementation manner, the sliding assembly comprises a sliding rod, a plurality of sliding bearings sleeved on the outer peripheral side of the sliding rod and a sliding block fixedly connected with the sliding bearings, one axial end of each sliding bearing is connected with the sliding rod in a clamping manner, and the movable grid is connected with the sliding block.

In one possible implementation manner, the first leveling mechanism further includes a first elastic element, the two ends of the supporting seat along the length direction of the supporting seat are respectively provided with a first abutting block, the two ends of the sliding rod along the length direction of the sliding rod are respectively provided with a second abutting block, and the first elastic element is arranged between the first abutting block and the second abutting block.

In one possible implementation, two rows of fixed grids are provided on both sides of the recess of the support plate.

In one possible implementation manner, the swinging assembly comprises a pair of first connecting rods and a pair of second connecting rods which are symmetrically arranged along the width direction of the supporting seat, a moving piece and a jacking mechanism, wherein the moving piece is arranged between the pair of first connecting rods and the jacking mechanism; the first connecting rod is rotationally connected with the second connecting rod, one end of the second connecting rod is rotationally connected with the adjusting rod, and the other end of the second connecting rod is rotationally connected with the supporting plate; the moving part moves along the vertical direction under the action of the jacking mechanism so as to push the pair of first connecting rods to move along the vertical direction and simultaneously respectively rotate relative to the moving part, so that the pair of second connecting rods respectively drive the adjusting rods on the same side to swing towards the battery module, and the side planes of the plurality of batteries are leveled.

In one possible implementation manner, the second connecting rod includes a first rod portion and a second rod portion which are arranged at a preset angle, the end portion of the first rod portion is rotationally connected with the supporting plate, the end portion of the second rod portion is rotationally connected with the adjusting rod located on the same side, and the middle portion of the first rod portion is rotationally connected with the first connecting rod.

In one possible implementation manner, the second connecting rod includes a first rod portion and a second rod portion which are arranged at a preset angle, the connection part of the first rod portion and the second rod portion is rotationally connected with the supporting plate, the end part of the second rod portion is rotationally connected with the adjusting rod located on the same side, and the end part of the first rod portion is rotationally connected with the first connecting rod.

In one possible implementation, the swing assembly further includes a first guide assembly, a guide rail of the first guide assembly is fixedly connected with the bracket and extends in a vertical direction, and a slider of the first guide assembly is fixedly connected with the moving member.

In one possible implementation manner, the jacking mechanism comprises a second power source, a fixing frame, a second guiding component, a connecting piece and an inclined wedge block with a gradient surface, wherein the fixing frame is fixedly connected with the bracket, the second guiding component extends along the horizontal direction and is arranged between the fixing frame and the connecting piece, the connecting piece is connected with the output end of the second power source, and the inclined wedge block is arranged on the connecting piece; one end of the moving part, which is far away from the first connecting rod, is provided with a roller contacted with the gradient surface of the inclined wedge; when the second power source drives the connecting piece to drive the inclined wedge to move along the horizontal direction, the cooperation of the idler wheels and the gradient surface of the inclined wedge provides a lifting force or a descending force in the vertical direction for the swinging assembly.

In one possible implementation, the side of the bracket facing the swinging assembly is further provided with two connecting blocks distributed at intervals, one connecting block is connected with the moving member, and a second elastic member is arranged between the two connecting blocks.

In a second aspect, embodiments of the present application provide a tray, including: a bottom plate; the leveling device of the battery module is arranged on the bottom plate; and the clamping mechanism comprises a first clamping plate and a second clamping plate which are arranged in an openable and closable manner, and the first clamping plate and the second clamping plate are clamped on two sides of the supporting seat.

In one possible implementation manner, the number of the leveling devices and the second clamping plates is multiple, the leveling devices are parallel and are arranged at intervals, and two adjacent second clamping plates are clamped on two sides of the supporting seat of the leveling device.

In a third aspect, embodiments of the present application provide a transport vehicle, including: the bottom of the bearing frame is provided with a rotating wheel; and the tray is arranged on the bearing frame.

According to the leveling device, the tray and the transport vehicle of the battery module, the leveling device comprises a supporting seat, a first leveling mechanism and a second leveling mechanism, wherein the supporting seat comprises a pair of brackets which are oppositely arranged and a supporting plate which is connected between the pair of brackets, the supporting plate comprises a groove which extends along the length direction of the supporting plate and a row of fixed grids which are positioned on at least one side of the groove, and a battery is contained between every two adjacent fixed grids in the row of fixed grids; the first leveling mechanism is movably arranged in the groove and is used for leveling the main planes of the batteries; the second leveling mechanism comprises a pair of swing assemblies connected with the pair of brackets respectively and a pair of adjusting rods connected between the pair of swing assemblies, wherein the pair of adjusting rods are positioned on two sides of the supporting seat along the width direction of the supporting seat, and can swing towards the battery module under the driving of the pair of swing assemblies for leveling the side planes of the batteries. The leveling device can automatically level the battery module, and effectively improve the stacking effect of the battery module.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. In addition, in the drawings, like parts are designated with like reference numerals and the drawings are not drawn to actual scale.

Fig. 1 shows a schematic structural diagram of a tray provided in an embodiment of the present application;

FIG. 2 illustrates a schematic view of the screeding device of FIG. 1 taken at an angle;

FIG. 3 illustrates a schematic view of the screeding device of FIG. 1 taken at another angle;

FIG. 4 illustrates an exploded view of the first screed mechanism of FIG. 3;

FIG. 5 illustrates a schematic view of the first screed mechanism of FIG. 4 along an angle;

FIG. 6 illustrates a partial schematic view of a second screed mechanism of FIG. 3;

FIG. 7 is a schematic view showing the construction of the jacking mechanism of the second screeding mechanism of FIG. 3;

FIG. 8 illustrates a simplified schematic diagram of a second flattening mechanism of FIG. 6;

FIG. 9 illustrates a schematic view of the movement of the second screed mechanism of FIG. 8;

FIG. 10 illustrates a simplified schematic diagram of an alternative second flattening mechanism of FIG. 3;

fig. 11 shows a schematic structural diagram of a transport vehicle according to an embodiment of the present application.

Reference numerals illustrate:

100. a leveling device; 200. a bottom plate; 300. a clamping mechanism; 301. a first clamping plate; 302. a second clamping plate; m, a battery module; B. a battery; b1, a main plane; b2, a side plane; p, a tray; t, bearing frame; w, a rotating wheel;

1. a first leveling mechanism; 11. a sliding assembly; 111. a slide bar; 112. a sliding bearing; 113. a slide block; 12. a movable grid; 13. a first elastic member; 14. a first abutment block; 15. a second abutment block; 16. a connecting block; 17. a second elastic member;

2. a second leveling mechanism; 21. a swing assembly; 211. a first link; 212. a second link; l1, a first rod part; l2, a second stem; 213. a moving member; 214. a jacking mechanism; 214a, a fixing frame; 214b, a second guide assembly; 214c, a connector; 214d, wedge blocks; 215. a first guide assembly; 216. a roller; 22. an adjusting lever; j1, a first connecting end; j2, a second connecting end; j3, a third connecting end;

3. a support base; 31. a bracket; 32. a support plate; 321. a groove; 322. the grid is fixed.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.

Fig. 1 shows a schematic structural diagram of a tray provided in an embodiment of the present application; FIG. 2 illustrates a schematic view of the screeding device of FIG. 1 taken at an angle; fig. 3 shows a schematic view of the screed of fig. 1 at another angle.

As shown in fig. 1 to 3, an embodiment of the present application provides a tray P for carrying a battery module M, where the tray P includes: the leveling device 100 comprises a base plate 200, a leveling device 100 arranged on the base plate 200 and a clamping mechanism 300, wherein the clamping mechanism 300 comprises a first clamping plate 301 and a second clamping plate 302 which can be arranged in an opening-closing mode, and the first clamping plate 301 and the second clamping plate 302 are clamped on two sides of a supporting seat 3 of the leveling device 100.

In this embodiment, battery module M generally includes a plurality of battery B that set up side by side, and the shape of every battery B is generally cuboid, can be provided with parts such as liquid cooling board between two adjacent battery B. The battery B comprises a main plane B1 arranged on two sides in the thickness direction of the battery B, a side plane B2 arranged on two sides in the length direction of the battery B and a top plane arranged in the width direction of the battery B, wherein a pole of the battery B is positioned on one side of the top plane, and a plurality of batteries B are arranged side by side in the thickness direction of the battery B to form a battery module M. When the battery module M is placed on the support base 3, the pole of each battery B faces upward. The clamping mechanism 300 may be used in combination with an opening mechanism or an opening device at an operating station to open or close the first clamping plate 301 and the second clamping plate 302, which will not be described in detail herein.

Specifically, when the first clamping plate 301 and the second clamping plate 302 of the clamping mechanism 300 are in the open state, a plurality of batteries B stacked in advance are placed on the support base 3 by operating a robot or manually. However, the plurality of batteries B may be offset due to their own weight or other reasons during the placement process, or may be tilted after being placed on the support base 3, and the plurality of batteries B may need to be leveled to improve the stacking effect of the battery modules M. When the battery module M finishes arrangement, the first clamping plate 301 and the second clamping plate 302 are in a closed state, so that stacking operations such as pressing and attaching can be performed on the plurality of batteries B, and the stacking effect of the battery module M is improved.

Optionally, the number of the leveling devices 100 and the second clamping plates 302 is multiple, and the leveling devices 100 are parallel and spaced apart, and two adjacent second clamping plates 302 are clamped on two sides of the supporting seat 3 of the leveling device 100.

As shown in fig. 1, 5 battery modules M are disposed on the tray P, that is, 5 rows of batteries B are disposed side by side, the number of the first clamping plates 301 is 1, the number of the second clamping plates 302 is 5, an accommodating space for accommodating 1 battery module M is formed between the first clamping plates 301 and the adjacent second clamping plates 302 and the supporting seat 3, an accommodating space for accommodating 1 battery module M can be formed between the remaining two adjacent second clamping plates 302 and the supporting seat 3, and a total of 5 battery modules M can be accommodated. Accordingly, the number of screeds 100 is also 5. Of course, more battery modules M, for example, 3 or 8 battery modules, may be provided on the tray P, and accordingly, the number of leveling devices 100 is also 3 or 8.

The specific structure of the leveling device for the battery module according to the embodiment of the present application is described in detail below with reference to the accompanying drawings.

As shown in fig. 2 and 3, the leveling device 100 for a battery module according to an embodiment of the present application includes: a first leveling mechanism 1, a second leveling mechanism 2 and a supporting seat 3.

The support base 3 includes a pair of brackets 31 disposed opposite to each other and a support plate 32 connected between the pair of brackets 31, and the support plate 32 includes a groove 321 extending along a length direction thereof and a row of fixing grids 322 located at least one side of the groove 321, and a battery B is accommodated between each adjacent two of the fixing grids 322 in the row of fixing grids 322.

Alternatively, the support plate 32 includes a groove 321 extending in a length direction thereof and a row of fixing grids 322 located at one side of the groove 321, each adjacent two of the fixing grids 322 of the row of fixing grids 322 is configured to accommodate one battery B, and a distance between the adjacent two fixing grids 322 is greater than a thickness of the battery B itself.

The first leveling mechanism 1 is movably disposed in the groove 321 for leveling the main planes B1 of the plurality of batteries B. When the robot is operated or a plurality of pre-stacked batteries B are manually placed between the corresponding fixed grids 322, the main plane B1 of the battery B is not parallel to the plane of the fixed grid 322, and a certain offset angle may be formed between the main plane B1 and the plane. The first leveling mechanism 1 is movably disposed in the groove 321, and can push the main plane B1 of the battery B to be parallel to the plane where the fixed grid 322 is located, that is, the main plane B1 of the battery B abuts against the plane where the fixed grid 322 is located, so that the main planes B1 of the plurality of batteries B can be leveled.

Further, considering that there is a possibility that the side planes B2 of the respective batteries B may be uneven after the plurality of batteries B are respectively disposed between the corresponding fixed grids 322, the first leveling mechanism 1 moves a certain distance along the groove 321, so that it cannot be guaranteed that each battery B can be parallel to the plane where the fixed grid 322 is located. For this, alternatively, two columns of fixing grids 322 are provided at both sides of the groove 321 of the support plate 32. The first leveling mechanism 1 is located between the two rows of fixed grids 322, so that the first leveling mechanism 1 can be ensured to move along the groove 321 for a certain distance, the two rows of fixed grids 322 automatically self-adjust the main plane B1 of each battery B, the main plane B1 of each battery B is ensured to be propped against the plane where the fixed grid 322 is located, and the leveling effect on the main planes B1 of the batteries B is further improved.

The second leveling mechanism 2 includes a pair of swing assemblies 21 respectively connected with the pair of brackets 31 and a pair of adjusting rods 22 connected between the pair of swing assemblies 21, the pair of adjusting rods 22 are located at two sides of the supporting seat 3 along the width direction of the supporting seat, and the pair of adjusting rods 22 can swing towards the battery module M under the driving of the pair of swing assemblies 21 for leveling the side plane B2 of the plurality of batteries B.

In this embodiment, the second leveling mechanism 2 levels the side planes B2 of the plurality of batteries B through a pair of adjusting rods 22 located at two sides of the supporting seat 3 in the width direction thereof, so that the side planes B2 of the plurality of batteries B can be aligned with each other, and therefore, the leveling device 100 can perform leveling treatment on the battery module M, and effectively improve the stacking effect of the battery module M.

According to the leveling device 100 of the battery module provided by the embodiment of the application, the leveling device comprises a supporting seat 3, a first leveling mechanism 1 and a second leveling mechanism 2, wherein the supporting seat 3 comprises a pair of brackets 31 which are oppositely arranged and a supporting plate 32 connected between the pair of brackets 31, the supporting plate 32 comprises a groove 321 extending along the length direction of the supporting plate and a row of fixed grids 322 positioned on at least one side of the groove 321, and a battery B is contained between every two adjacent fixed grids 322 in the row of fixed grids 322; the first leveling mechanism 1 is movably arranged in the groove 321 and is used for leveling the main plane B1 of the plurality of batteries B; the second leveling mechanism 2 includes a pair of swing assemblies 21 respectively connected with the pair of brackets 31 and a pair of adjusting rods 22 connected between the pair of swing assemblies 21, the pair of adjusting rods 22 are located at two sides of the supporting seat 3 along the width direction of the supporting seat, and the pair of adjusting rods 22 can swing towards the battery module M under the driving of the pair of swing assemblies 21 for leveling the side plane B2 of the plurality of batteries B. The leveling device 100 can automatically level the battery module, so that the stacking effect of the battery module is effectively improved.

FIG. 4 illustrates an exploded view of the first screed mechanism of FIG. 3; fig. 5 shows a schematic view of the first flattening mechanism of fig. 4, taken at an angle.

As shown in fig. 4 and 5, the first leveling mechanism 1 includes a first power source (not shown), a sliding assembly 11, and a movable grid 12 connected to the sliding assembly 11, wherein the movable grids 12 are in one-to-one correspondence with the fixed grids 322, and the first power source pushes the sliding assembly 11 to move along the groove 321 and level the main plane B1 of the batteries B through the movable grids 12.

The first power source may be an air cylinder, a hydraulic cylinder, a linear motor or the like, and the first power source may be disposed on the base plate 200, or may be disposed in an opening mechanism or an opening device on the operation station, which will not be described herein. When the first power source pushes the sliding assembly 11 to move along the groove 321, the plurality of movable grids 322 are driven to move, so that the main planes B1 of the corresponding plurality of batteries B are pushed to respectively abut against the corresponding fixed grids 322, and the leveling operation is completed.

Further, the sliding assembly 11 includes a sliding rod 111, a plurality of sliding bearings 112 sleeved on the outer circumference side of the sliding rod 111, and a slider 113 fixedly connected to the sliding bearings 112, wherein one axial end of the sliding bearings 112 is connected to the sliding rod 111 in a clamping manner, and the movable grid 12 is connected to the slider 113.

Optionally, one axial end of the sliding bearing 112 is connected with the sliding rod 111 through a C-shaped clamp spring in a clamping manner, so that the movable grids 12 and the fixed grids 322 are in one-to-one correspondence, and a battery B can be accommodated between two adjacent movable grids 12. Meanwhile, the sliding bearing 112 can drive the movable grid 12 to automatically fine-tune along the other end of the axial direction through the sliding block 113, so that the main plane B1 of each battery B is ensured to be respectively abutted against the corresponding fixed grid 322 and meanwhile the battery B is not extruded, and the leveling effect is further improved.

In some embodiments, the first leveling mechanism 1 further includes a first elastic member 13, two ends of the supporting seat 3 along the length direction thereof are respectively provided with a first abutment block 14, two ends of the sliding rod 111 along the length direction thereof are respectively provided with a second abutment block 15, and the first elastic member 13 is disposed between the first abutment block 14 and the second abutment block 15.

Optionally, the first elastic member 13 is a compression spring, so that on one hand, an impact force applied to the sliding assembly 11 in a moving process along the groove 321 can be buffered, and the battery B is prevented from being deformed due to stress in a finishing process, so as to affect an electrical performance of the battery B, and on the other hand, the first elastic member can be quickly restored to a normal position after the first power source is turned off.

FIG. 6 illustrates a partial schematic view of a second screed mechanism of FIG. 3; FIG. 7 is a schematic view showing the construction of the jacking mechanism of the second screeding mechanism of FIG. 3; FIG. 8 illustrates a simplified schematic diagram of a second flattening mechanism of FIG. 6; fig. 9 shows a schematic diagram of the movement of the second levelling mechanism of fig. 8.

As shown in fig. 6 to 9, the swing assembly 21 of the second leveling mechanism 2 includes a pair of first links 211 and a pair of second links 212 symmetrically arranged in the width direction of the support base 3, and a moving piece 213 and a lifting mechanism 214, the moving piece 213 being arranged between the pair of first links 211 and the lifting mechanism 214; the first link 211 is rotatably connected to the second link 212, one end of the second link 212 is rotatably connected to the adjustment lever 22, and the other end of the second link 212 is rotatably connected to the support plate 32.

The moving member 213 moves in the vertical direction under the action of the lifting mechanism 214, so as to push the pair of first connecting rods 211 to move in the vertical direction and simultaneously rotate relative to the moving member 213, so that the pair of second connecting rods 212 respectively drive the adjusting rods 22 on the same side to swing towards the battery module M, and level the side planes B2 of the plurality of batteries B.

Further, the second link 212 includes a first rod portion L1 and a second rod portion L2 disposed at a predetermined angle, an end of the first rod portion L1 is rotatably connected to the support plate 32, an end of the second rod portion L2 is rotatably connected to the adjustment lever 22 located on the same side, and a middle portion of the first rod portion L1 is rotatably connected to the first link 211.

Optionally, the angle between the first and second rod portions L1 and L2 of the second link 212 is 130 ° to 150 °, and in one example, the angle between the first and second rod portions L1 and L2 is 140 °. By the arrangement, the second connecting rod 212 can be prevented from interfering with other peripheral components or being clamped in the movement process in the process of swinging towards the battery module M according to the preset track, so that the arrangement operation of the battery module M is realized.

Further alternatively, the ratio between the length of the first link 211 and the length of the first lever portion L1 is 3:2; further, when the moving member 213 is lifted from the initial position to the extreme position, the angle between the pair of first links 211 is changed from the initial 50 ° ± 5 ° to 110 ° ± 5 °, and the rotation angle of the second link 212 is 120 ° ± 5 °. So set up, in the process of guaranteeing that second connecting rod 212 rotates to the side plane B2 contact of top and battery B from the initial equilibrium position of below, can move and can not block according to the required motion track of flattening operation, the while structure is compacter, occupation space is littleer, and then reduces the height of the support 31 that is connected with swing subassembly 21, reduces the overall height of leveling device 100.

As shown in fig. 8 and 9, the solid line represents the positions of the first link 211 and the second link 212 when the swing assembly 21 is in the initial non-lifted state, and the broken line represents the positions of the first link 211 and the second link 212 when the swing assembly 21 is lifted to the limit position.

The initial positions of the second connecting rod 212 and the adjusting rod 22 are near to the moving member 213, the second connecting rod 212 has a first connecting end J1, a second connecting end J2 and a third connecting end J3, wherein the first rod portion L1 of the second connecting rod 212 is hinged with the first connecting rod 211 at the first connecting end J1, the first rod portion L1 of the second connecting rod 212 is hinged with the end of the supporting plate 32 at the second connecting end J2, and the second rod portion L2 of the second connecting rod 212 is hinged with the adjusting rod 22 at the third connecting end J3.

In one example, the ratio between the length of the first link 211 and the length of the first lever portion L1 is 3:2. For example, the length of the first link 211 is 94.5mm, the length of the first rod portion L1 of the second link 212 is 63mm, and the angle between the first rod portion L1 and the second rod portion L2 of the second link 212 is 140 °; the middle part of the first lever part L1 is rotatably connected with the first link 211. The moving member 213 pushes the first link 211 to move in the vertical direction by a distance of 68mm to 70mm between the initial position of the moving member 213 and the limit position of the lifting, the angle between the pair of first links 211 is changed from the initial 52 ° to 114 °, and the rotation angle of the second link 212 is about 117 °.

Thus, when the moving member 213 moves in the vertical direction under the action of the lifting mechanism 214, the pair of first links 211 can be pushed to move in the vertical direction while rotating respectively with respect to the moving member 213, so that the second link 212 will rotate with the second connection end J2 as a center and the distance between the second connection end J2 and the first connection end J1 as a radius, as shown by the arc arrow in fig. 8. When the moving member 213 is lifted from the initial position to the limit position, the third connecting end J3 of the second connecting rod 212 drives the adjusting rod 22 to rotate to a position contacting the side plane B2 of the battery module M, so as to level the uneven side planes B2 of the batteries B.

Fig. 10 shows a simplified schematic of another second flattening mechanism of fig. 3.

As shown in fig. 10, another second leveling mechanism 2 according to the embodiment of the present application is similar to the second leveling mechanism 2 shown in fig. 6 to 9, except that the first link 211 and the second link 212 of the swing assembly 21 are different in structure and connection position.

Specifically, the second link 212 includes a first lever portion L1 and a second lever portion L2 disposed at a predetermined angle, a connection portion of the first lever portion L1 and the second lever portion L2 is rotatably connected with the support plate 32, an end portion of the second lever portion L2 is rotatably connected with the adjustment lever 22 located on the same side, and an end portion of the first lever portion L1 is rotatably connected with the first link 211.

As shown in fig. 10, the solid line represents the positions of the first link 211 and the second link 212 when the swing assembly 21 is in the initial non-lifted state, and the broken line represents the positions of the first link 211 and the second link 212 when the swing assembly 21 is lifted to the limit position.

The initial position of the second connecting rod 212 and the adjusting rod 22 is close to the side plane B2 of the battery module B, the second connecting rod 212 is provided with a first connecting end J1, a second connecting end J2 and a third connecting end J3, wherein the first rod portion L1 of the second connecting rod 212 is hinged with the first connecting rod 211 at the first connecting end J1, the connection part of the first rod portion L1 of the second connecting rod 212 and the second rod portion L2 is hinged with the end part of the supporting plate 32 at the second connecting end J2, and the second rod portion L2 of the second connecting rod 212 is hinged with the adjusting rod 22 at the third connecting end J3. The second rod portion L2 is a special-shaped rod, and only needs to meet the requirement that the end of the second rod portion L2 can drive the adjusting rod 22 to contact with the side plane B2 of the battery module B after rotating by a preset angle.

Alternatively, the angle between the first and second lever portions L1 and L2 of the second link 212 is 80°±5°. In one example, the angle between the first and second rod portions L1 and L2 of the second link 212 is 82 °. Further, the ratio between the length of the first link 211 and the length of the first lever portion L1 is 3:1. In one example, the length of the first link 211 is 94.5mm and the length of the first rod portion L1 of the second link 212 is 31.5mm. The distance that the moving member 213 pushes the first link 211 to move in the vertical direction, that is, the distance between the initial position of the moving member 213 and the limit position of the lifting is 10mm, the angle between the pair of first links 211 is changed from the initial 50 ° ± 5 ° to 70 ° ± 5 °, and the rotation angle of the second link 212 is 30 ° ± 5 °. So set up, can make second connecting rod 212 drive adjustment lever 22 rotate less angle can with battery module B's side plane B2 contact, and can not take place to interfere or be blocked in the motion process with other parts of periphery, realize battery module M's arrangement operation.

Thus, when the moving member 213 moves in the vertical direction under the action of the lifting mechanism 214, the pair of first links 211 can be pushed to move in the vertical direction while rotating respectively with respect to the moving member 213, so that the second link 212 will rotate with the second connection end J2 as a center and the distance between the second connection end J2 and the first connection end J1 as a radius, as shown by the arc arrow in fig. 10. When the moving member 213 is lifted from the initial position to the limit position, the third connecting end J3 of the second connecting rod 212 drives the adjusting rod 22 to rotate to a position contacting the side plane B2 of the battery module M, so as to level the uneven side planes B2 of the batteries B.

It can be appreciated that the components of the swing assembly 21 in the embodiment of the present application may be designed to have other dimensions, for example, the hinge position between the first link 211 and the second link 212 may be other positions, the included angle between the first rod portion L1 and the second rod portion L2 in the second link 212 may be other angles, and the shape of the second link 212 is not limited to the examples in the figures, depending on the specific usage scenario, and will not be described again.

In some embodiments, the swing assembly 21 further includes a first guide assembly 215, wherein a guide rail of the first guide assembly 215 is fixedly connected with the bracket 31 and extends in a vertical direction, and a slider 113 of the first guide assembly 215 is fixedly connected with the moving member 213. The first guiding component 215 can provide a guiding function for the movement of the moving member 213 along the vertical direction, so as to ensure that the moving member 213 does not deviate in the process of moving under the lifting function of the lifting mechanism 214.

In some embodiments, the jacking mechanism 214 includes a second power source, a fixing frame 214a, a second guiding component 214b, a connecting piece 214c and a wedge block 214d with a slope surface, the fixing frame 214a is fixedly connected with the bracket 31, the second guiding component 214b extends along the horizontal direction and is arranged between the fixing frame 214a and the connecting piece 214c, the connecting piece 214c is connected with the output end of the second power source, and the wedge block 214d is arranged on the connecting piece 214 c; the end of the mover 213 away from the first link 211 is provided with a roller 216 that contacts the sloped surface of the sloped wedge 214 d.

When the second power source drives the connecting piece 214c to drive the inclined wedge 214d to move along the horizontal direction, the cooperation of the roller 216 and the gradient surface of the inclined wedge 214d provides a vertical jacking force or a vertical descending force for the swinging assembly 21.

As shown in fig. 7, the second guiding component 214b is disposed between the fixing frame 214a and the connecting piece 214c, the wedge 214d is disposed on the connecting piece 214c, and the second guiding component 214b is used for providing a guiding function for the movement of the wedge 214d along the horizontal direction. The fixing frame 214a may be fixedly connected to the bracket 31, and the fixing frame 214a may be fixed to the base plate 200 together with the bracket 31. In addition, the output end of the second power source can drive the connecting piece 214c to drive the inclined wedge 214d to move along the horizontal direction, so as to ensure that the variation of the inclined wedge 214d on the connecting piece 214c in the vertical direction is within the allowable range in the process of moving along the horizontal direction along with the connecting piece 214c, thereby improving the movement precision of the moving piece 213 along the vertical direction. The second power source may be an air cylinder, a hydraulic cylinder, a linear motor, or the like, and the power source may be disposed on the base plate 200, or may be disposed in an opening mechanism or an opening device on the operation station, which will not be described herein.

Further, roller 216 contacts the sloped surface of sloped wedge 214d, and roller 216 may reduce frictional resistance between the roller and the sloped surface of sloped wedge 214 d. When the wedge 214d moves in the horizontal direction, the roller 216 will drive the moving member 213 to rise in the vertical direction along the slope surface of the wedge 214 d. After the leveling operation is completed, the roller 216 will descend along the slope surface of the wedge 214d along the vertical direction, so as to drive the swinging assembly 21 to descend, and further drive the adjusting rod 22 to swing along the direction away from the battery module M, and restore to the initial position. The first clamping plate 301 and the second clamping plate 302 of the clamping mechanism 300 then perform a closing action to stack the plurality of batteries B.

In addition, the connecting member 214c is provided with a first fixing end and a second fixing end (not shown) extending toward the base plate 200 along both ends of its length, respectively, and a first buffer member is provided between the first fixing end and the fixing frame 214 a. The bottom plate 200 is correspondingly provided with a second fixing frame (not shown in the figure) opposite to the second fixing end and arranged at intervals, and a second buffer member (not shown in the figure) is arranged between the second fixing end and the second fixing frame. The first buffer member and the second buffer member may be spring dampers or hydraulic dampers, and are used for buffering the impact force received by the jacking mechanism 214 in the moving process, so that the swing assembly 21 is in a relatively stable state in the leveling process as a whole, and the battery module M is ensured not to topple.

In some embodiments, the side of the bracket 31 facing the swing assembly 21 is further provided with two connection blocks 16 spaced apart, wherein one connection block 16 is connected to the moving member 213, and a second elastic member 17 is disposed between the two connection blocks 16. As shown in fig. 6 and 7, the second elastic member 17 is a tension spring, which can buffer the impact force received by the moving member 213 during the movement along the vertical direction, and can drive the moving member 213 to quickly return to the original position after finishing the finishing operation.

As shown in fig. 11, the embodiment of the present application further provides a transport vehicle, including any of the foregoing trays P and a carrier T, where the bottom of the carrier T is provided with a rotating wheel W, and the tray P is disposed on the carrier T.

The transport vehicle may be an automatic guided transport vehicle (Automated Guided Vehicle, abbreviated as AGV), and the carrier T is further equipped with an electromagnetic or optical automatic navigation device, and can travel along a predetermined navigation path, thereby having safety protection and various transfer functions. The transport vehicle can be applied to an automatic production line of the battery module, is used for bearing the battery module M to move back and forth among a plurality of operation stations of the automatic production line, realizes the feeding and the discharging of the battery module M through the transport vehicle, and improves the assembly efficiency of the battery module M.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. The utility model provides a leveling device of battery module, battery module is including a plurality of batteries that set up side by side, the battery includes the principal plane that sets up along self thickness direction both sides and the side plane that sets up along self length direction both sides, its characterized in that, leveling device includes:

the support seat comprises a pair of brackets and a support plate, wherein the brackets are oppositely arranged, the support plate is connected between the brackets, the support plate comprises a groove extending along the length direction of the support plate and a row of fixed grids positioned on at least one side of the groove, and a battery is contained between every two adjacent fixed grids in the row of fixed grids;

the first leveling mechanism is movably arranged in the groove and is used for leveling the main planes of the batteries; and

the second leveling mechanism comprises a pair of swing assemblies and a pair of adjusting rods, wherein the pair of swing assemblies are respectively connected with the pair of brackets, the pair of adjusting rods are connected between the pair of swing assemblies, the pair of adjusting rods are positioned on two sides of the supporting seat along the width direction of the supporting seat, and can swing towards the battery module under the driving of the pair of swing assemblies and are used for leveling the side planes of the batteries.

2. The screeding device of claim 1, wherein said first screeding mechanism comprises a first power source, a sliding assembly and a movable grid connected to said sliding assembly, said plurality of movable grids being in one-to-one correspondence with said plurality of fixed grids, said first power source pushing said sliding assembly to move along said recess and screeding a major plane of said plurality of batteries through said plurality of movable grids.

3. The leveling device according to claim 2, wherein the sliding assembly comprises a sliding rod, a plurality of sliding bearings sleeved on the outer peripheral side of the sliding rod, and a sliding block fixedly connected with the sliding bearings, one axial end of each sliding bearing is connected with the sliding rod in a clamping manner, and the movable grid is connected with the sliding block.

4. The leveling device according to claim 3, wherein the first leveling mechanism further comprises a first elastic member, first abutment blocks are respectively disposed at two ends of the support base along a length direction of the support base, second abutment blocks are respectively disposed at two ends of the sliding rod along the length direction of the sliding rod, and the first elastic member is disposed between the first abutment blocks and the second abutment blocks.

5. The screeding device of any one of claims 1 to 4, wherein two rows of said fixed grids are disposed on either side of said recess of said support plate.

6. The leveling device according to claim 1, wherein the swing assembly includes a pair of first links and a pair of second links symmetrically disposed in a width direction of the support base, and a moving member and a lifting mechanism, the moving member being disposed between the pair of first links and the lifting mechanism;

the first connecting rod is rotationally connected with the second connecting rod, one end of the second connecting rod is rotationally connected with the adjusting rod, and the other end of the second connecting rod is rotationally connected with the supporting plate;

the movable piece moves along the vertical direction under the action of the jacking mechanism so as to push the pair of first connecting rods to move along the vertical direction and simultaneously rotate relative to the movable piece, so that the pair of second connecting rods drive the adjusting rods on the same side to swing towards the battery module respectively, and the side planes of the batteries are leveled.

7. The screeding device of claim 6, wherein said second link comprises a first lever portion and a second lever portion disposed at a predetermined angle, an end of said first lever portion being rotatably connected to said support plate, an end of said second lever portion being rotatably connected to said adjustment lever on the same side, and a middle of said first lever portion being rotatably connected to said first link.

8. The screeding device of claim 6, wherein said second link comprises a first rod portion and a second rod portion disposed at a predetermined angle, wherein a junction of said first rod portion and said second rod portion is rotatably connected to said support plate, wherein an end of said second rod portion is rotatably connected to said adjustment rod on the same side, and wherein an end of said first rod portion is rotatably connected to said first link.

9. The screeding device of claim 6, wherein said swinging assembly further comprises a first guide assembly, wherein a rail of said first guide assembly is fixedly connected to said carriage and extends in a vertical direction, and wherein a slider of said first guide assembly is fixedly connected to said movable member.

10. The leveling device according to claim 6, wherein the jacking mechanism comprises a second power source, a fixing frame, a second guiding component, a connecting piece and a wedge block with a gradient surface, the fixing frame is fixedly connected with the bracket, the second guiding component extends along the horizontal direction and is arranged between the fixing frame and the connecting piece, the connecting piece is connected with the output end of the second power source, and the wedge block is arranged on the connecting piece;

one end of the moving part, which is far away from the first connecting rod, is provided with a roller which is contacted with the gradient surface of the wedge block;

when the second power source drives the connecting piece to drive the inclined wedge to move along the horizontal direction, the cooperation of the idler wheels and the gradient surface of the inclined wedge provides a vertical jacking force or a vertical descending force for the swinging assembly.

11. The leveling device of claim 2, wherein the side of the bracket facing the swing assembly is further provided with two connection blocks spaced apart, one of the connection blocks being connected to the moving member, and a second elastic member being provided between the two connection blocks.

12. A tray, comprising:

a bottom plate;

the leveling device of the battery module according to any one of claims 1 to 11, provided on the base plate; and

the clamping mechanism comprises a first clamping plate and a second clamping plate which are arranged in an openable and closable manner, and the first clamping plate and the second clamping plate are clamped on two sides of the supporting seat of the leveling device.

13. The pallet of claim 12, wherein the number of the leveling devices and the number of the second clamping plates are respectively a plurality of the leveling devices, the leveling devices are parallel and are arranged at intervals, and two adjacent second clamping plates are clamped on two sides of the supporting seat of the leveling device.

14. A transport vehicle, comprising:

the bottom of the bearing frame is provided with a rotating wheel; and

a pallet as claimed in claim 12 or 13, provided on the carrier.