CN218764230U

CN218764230U - Battery pack, battery tray loading device, battery tray loading system and battery production line

Info

Publication number: CN218764230U
Application number: CN202222467261.7U
Authority: CN
Inventors: 邓义昭; 杨福云; 徐鑫
Original assignee: Sany Technology Equipment Co Ltd
Current assignee: Sany Technology Equipment Co Ltd
Priority date: 2022-06-07
Filing date: 2022-09-15
Publication date: 2023-03-28
Anticipated expiration: 2032-09-15
Also published as: CN219494575U; CN115312831A; CN218565904U

Abstract

The utility model provides a group battery, battery sabot device, battery sabot system and battery production line, wherein, the group battery includes: a tray; and the plurality of battery units are arranged in the tray, are in multiple rows and form an array structure, and adjacent battery units are mutually abutted without gaps. A plurality of battery units are arranged in the tray of the battery pack, the battery units are mutually abutted and seamless, so that the plurality of battery units are tightly placed, and the space utilization rate in the tray is greatly improved. Consequently the technical scheme of the utility model the defect that space utilization in the battery tray among the prior art is low has been solved.

Description

Battery pack, battery tray loading device, battery tray loading system and battery production line

Technical Field

The utility model relates to a battery production facility technical field, concretely relates to group battery, battery sabot device, battery sabot system and battery production line.

Background

It is known that in a new energy automobile, the power demand of the automobile can be satisfied by the electric energy provided by a power battery without using the power battery, and the power is gradually replaced by a mode of providing power by gasoline or diesel oil and the like. The production process of the power battery relates to a packaging process of the power battery, a baking process of the packaged power battery, a pouring process of the baked power battery and the like. In the prior art battery baking process, the batteries are placed in rows and columns in a tray, and then the tray is placed in a baking oven to evaporate the water in the batteries. For production efficiency, the front side and the rear side of a row of batteries are clamped by clamping jaws in the prior art and then put into a tray. Since the clamping jaws need to be withdrawn after the batteries are loaded into the tray, a gap is inevitably left between the two rows of batteries, resulting in low space utilization in the tray. At the same time, the gaps between the cells are also not conducive to heat conduction in a bottom contact heating mode.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that space utilization in the battery tray among the prior art is low to a group battery, battery sabot device, battery sabot system and battery production line are provided.

In order to solve the above problem, the utility model provides a battery pack, include: a tray; and the plurality of battery units are arranged in the tray, are in multiple rows and form an array structure, and adjacent battery units are mutually abutted without gaps.

Optionally, the tray comprises long sides and short sides, the battery cells are square and have large sides and small sides, the large sides are arranged towards the short sides and the small sides are arranged towards the long sides.

Optionally, the tray includes a bottom plate and four side plates disposed at edges of the bottom plate, and the bottom plate is provided with a heating structure.

The utility model also provides a battery sabot device for the foretell group battery of sabot, include: a picking mechanism adapted to pick up a row of the plurality of battery units, the picking mechanism being capable of picking up non-adjacent contact surfaces in the row of the plurality of battery units such that adjacent battery units abut each other without a gap before the plurality of battery units disengage from the picking mechanism; and the first driving mechanism is suitable for driving the picking mechanism to move and pick up the battery unit.

Alternatively, the battery unit is in a square structure, the battery unit is provided with a top surface, a bottom surface, two opposite large side surfaces and two opposite small side surfaces, and the picking mechanism can pick the top surface, or can pick the bottom surface, or can pick the large side surfaces, or can pick the two small side surfaces which are positioned at the outermost side in a row of a plurality of battery units.

Optionally, the picking mechanism comprises a first picking part on which the suction structure is arranged, the first picking part being adapted to pick up a large side of the battery unit.

Optionally, the pick-up mechanism further comprises a second pick-up part disposed opposite to the first pick-up part, the first and second pick-up parts having a gripping state and an open state, and the second pick-up part moves upward and avoids a front position of the first pick-up part when the first and second pick-up parts are in the open state.

Optionally, the first pickup portion and the second pickup portion are both strip-shaped structures.

Optionally, the first pick-up portion comprises a clamp plate and the suction structure comprises a suction cup disposed on the clamp plate.

Optionally, the pick-up mechanism further comprises a mounting frame, the first pick-up portion is fixedly arranged on the mounting frame, and the second pick-up portion is movably arranged on the mounting frame.

Optionally, the upper end of the second picking part is rotatably disposed on the mounting frame, and the picking mechanism further includes a second driving mechanism that drives the second picking part to swing.

Optionally, a slide rail is arranged on the mounting frame, the pickup mechanism further comprises a slide block, a swing rod and a connecting rod, the slide block is arranged on the slide rail, the second driving mechanism drives the slide block to slide on the slide rail, the swing rod is bent, one end of the swing rod is hinged to the mounting frame, the other end of the swing rod is connected with the second pickup portion, and two ends of the connecting rod are hinged to the slide block and the swing rod respectively.

Optionally, the battery tray loading device further comprises a feeding mechanism, and the feeding mechanism is suitable for enabling the battery units to flow to the position below the picking mechanism.

Optionally, the feeding mechanism includes a conveying structure and a plurality of baffles arranged above the conveying structure, the conveying structure extends to the lower side of the picking mechanism, the baffles are arranged in parallel and at intervals, and the interval between adjacent baffles is adapted to the thickness of the battery unit.

Optionally, the conveying structure comprises a plurality of rollers.

Optionally, the picking mechanism comprises a first picking part on which the suction structure is arranged, the first picking part being adapted to pick up a top surface or a bottom surface of the battery unit.

Optionally, the picking mechanism further comprises a mounting frame, the first picking portions are arranged at intervals, and each first picking portion is movably arranged on the mounting frame.

Optionally, the picking mechanism further comprises a third driving mechanism, the third driving mechanism is arranged between the adjacent first picking parts and picks and drives the adjacent first picking parts to move close to or away from each other.

Optionally, the picking mechanism comprises a clamping jaw which is suitable for clamping two small side surfaces positioned at the outermost side in a row of the plurality of battery units.

The utility model also provides a battery sabot system, including foretell battery sabot device and tray, the battery unit in the tray passes through battery sabot device zero clearance and puts.

The utility model also provides a battery production line, including foretell battery sabot device.

The utility model has the advantages of it is following:

utilize the technical scheme of the utility model, be provided with a plurality of battery cell in the tray of group battery, the butt of each other between the battery cell is and seamless, and then makes to put closely between a plurality of battery cell, has improved the space utilization in the tray greatly. Consequently the technical scheme of the utility model the defect that space utilization in the battery tray among the prior art is low has been solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 shows a schematic structural view of a battery pack of the present invention;

fig. 2 shows a schematic structural diagram of a first embodiment of the battery tray loading device of the present invention;

FIG. 3 shows an enlarged schematic view at A in FIG. 2;

fig. 4 is a schematic structural view showing a pickup mechanism of the battery tray loading apparatus of fig. 2 in a gripping state;

FIG. 5 shows an enlarged schematic view at B in FIG. 4;

fig. 6 is a schematic view showing a structure of a pickup mechanism of the battery tray loading apparatus of fig. 2 in an open state;

fig. 7 shows a schematic structural diagram of a second embodiment of the battery tray loading device according to the present invention; and

fig. 8 is a schematic view showing the temperature distribution of the conventional battery pack and the battery pack of the present embodiment when heated.

Description of the reference numerals:

10. a frame; 20. a pickup mechanism; 21. a first pickup section; 22. a second pickup section; 23. a mounting frame; 231. a slide rail; 24. a second drive mechanism; 25. a slider; 26. a swing rod; 27. a connecting rod; 28. a third drive mechanism; 30. an adsorption structure; 40. a first drive mechanism; 50. a feeding mechanism; 51. a conveying structure; 52. a baffle plate; 100. a battery cell; 200. a tray; 201. a long side; 202. a short side; 210. a base plate; 220. side plates.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1, the battery pack of the present embodiment includes a tray 200 and a plurality of battery cells 100. Wherein a plurality of battery cells 100 are disposed in the tray 200, and the plurality of battery cells 100 are arranged in a plurality of rows and form an array structure. Wherein the adjacent battery cells 100 are abutted against each other and are placed without a gap.

By using the technical solution of the embodiment, the plurality of battery units 100 are arranged in the tray 200 of the battery pack, and the battery units 100 are mutually abutted and have no gap, so that the plurality of battery units 100 are tightly placed, and the space utilization rate in the tray 200 is greatly improved. Therefore, the technical scheme of the embodiment overcomes the defect of low space utilization rate in the battery tray in the prior art.

In this embodiment, the plurality of battery cells 100 form a plurality of rows, each row having the plurality of battery cells 100, and thus the plurality of battery cells 100 form a multi-row and multi-column structure, i.e., an array structure. Among the plurality of battery cells 100, the adjacent battery cells 100 in each row are abutted without a gap, and the adjacent battery cells 100 are abutted without a gap, thereby realizing the gapless placement of the battery pack.

Further, the tray 200 includes a long side 201 and a short side 202. The battery cell 100 is square and has a large side disposed toward the short side 202 and a small side disposed toward the long side 201.

Specifically, in the solution of the present embodiment, the battery cell 100 has a square structure, which includes a top surface, a bottom surface, two opposite large side surfaces, and two opposite small side surfaces. The top edge of the large side is the long side of the battery cell 100, and the top edge of the small side is the short side of the battery cell 100.

The space inside the tray 200 is square, i.e. has two long sides 201 and two short sides 202. As can be seen from fig. 1, in the present embodiment, the battery cells 100 are arranged in such a manner that the large side faces the short side 202 and the small side faces the long side 201. As shown in fig. 8, it has been found through experiments by the applicant that, in the case that a plurality of battery cells 100 are stacked without gaps, the battery pack of the present embodiment has a significantly reduced temperature difference between the battery cells 100 located at both sides and the battery cells 100 located at both sides after being heated, compared to the conventional battery pack, that is, the battery pack is arranged in a manner that facilitates heat transfer between the battery cells 100.

As can be seen in connection with fig. 1, the tray 200 includes a bottom plate 210 and four side plates 220 disposed at four edges of the bottom plate 210. Wherein, the two side plates 220 have longer lengths, and the two side plates 220 have shorter lengths, so as to enclose a square space. Meanwhile, a heating structure is provided in the bottom plate 210, and the heating structure generates heat to dry moisture in the battery cell 100.

Three embodiments of the battery tray apparatus of the present application are described below:

example one

As shown in fig. 2 to 6, the battery tray loading apparatus according to the first embodiment includes a frame 10, a pickup mechanism 20, and a first driving mechanism 40. The battery tray loading device is used for loading the battery pack. Wherein the picking mechanism 20 is movably arranged on the frame 10 and is adapted to pick up a row of the plurality of battery units 100, the picking mechanism 20 being capable of picking up non-adjacent contact surfaces in the row of the plurality of battery units 100 such that the first row of the plurality of battery units 100 abuts each other without gaps. The first drive mechanism 40 drives the pick-up mechanism 20 to move on the frame.

With the technical solution of the present embodiment, when the electric disc device performs disc loading on the battery units 100, the pickup mechanism 20 can pick up a row of the plurality of battery units 100, and since the pickup mechanism 20 picks up non-adjacent contact surfaces of the row of the plurality of battery units 100, the picked-up row of the battery units 100 can be closely attached without leaving a gap, thereby improving the space utilization rate in the tray 200.

The above-described row of battery cells 100 includes a plurality of battery cells 100 arranged in sequence, and the side surfaces of the adjacent battery cells 100 are closely attached to each other. The above-mentioned "non-adjacent contact surface" refers to a surface of a row of battery cells 100 other than the surface where adjacent battery cells 100 contact. I.e., the top, bottom, front and rear surfaces of a row of cells 100, and the side surfaces of the cells 100 at the ends.

In this embodiment, the pickup mechanism 20 is used to pick up the large side of the battery unit 100.

Specifically, as shown in fig. 2 to 6, the pickup mechanism 20 includes a first pickup portion 21 and a second pickup portion 22 that are disposed oppositely. The first pickup portion 21 and the second pickup portion 22 have a gripping state and an open state, and when the first pickup portion 21 and the second pickup portion 22 are in the open state, the second pickup portion 22 moves upward and escapes to a front side position of the first pickup portion 21. The first pickup portion 21 is provided with an adsorption structure 30.

In the present embodiment, when the pickup mechanism 20 picks up the battery unit 100, the first pickup part 21 and the second pickup part 22 grip the battery unit 100 and are in a gripping state. Wherein the first pick-up part 21 picks up the large side of the battery unit 100 through the adsorption structure 30, and the second pick-up part 22 plays a role of auxiliary clamping.

When the tray loading is performed, the first driving mechanism 40 drives the pickup mechanism 20 to move to the tray 200, at this time, the first pickup portion 21 and the second pickup portion 22 are in an open state, the first pickup portion 21 fixes the battery unit 100 by the suction structure 30, and at the same time, the second pickup portion 22 escapes from the front side position of the first pickup portion 21, and the pickup mechanism 20 continues to move and pushes the battery unit 100 onto the tray 200. Since the front side of the first picking part 21 is not shielded, the battery unit 100 can be closely overlapped with the battery unit 100 loaded on the tray 200 without a gap, and the space utilization rate on the tray 200 can be improved.

It will be understood by those skilled in the art that since the second picking part 22 described above functions as an auxiliary clamping, the second picking part 22 described above may not be provided if the suction force of the suction structure 30 is sufficiently large.

Of course, in some embodiments not shown, the frame 10 may not be provided, and the first driving mechanism 40 may be a robot. The picking mechanism 20 is directly provided on the robot, and the robot directly drives the picking mechanism 20 to move.

The above-described "front position of the first pickup portion 21" refers to a direction in which the pickup mechanism 20 pushes the battery cell 100 onto the tray 200 when the battery cell 100 is loaded. That is, in fig. 1, the front side of the first pickup 21 is in a direction obliquely downward toward the left as viewed in fig. 1. Since the second picking part 22 will escape to the front side position of the first picking part 21 when the first picking part 21 and the second picking part 22 are in the open state, the picking mechanism 20 can push the battery cells 100 and closely adhere to the already-loaded battery cells 100 when the battery cells 100 are loaded, so that no gap is left between the loaded battery cells 100.

The first driving mechanism 40 can drive the picking mechanism 20 to move in three axes X, Y and Z, so that the picking mechanism 20 can be moved between the battery unit 100 loading position and the tray 200 position. The first driving mechanism 40 may be a motor, a cylinder, or the like.

As shown in fig. 4 and 6, in the technical solution of the present embodiment, the first pickup portion 21 and the second pickup portion 22 are both of a long strip-shaped structure. Specifically, the first and

second pickers

21 and 22 are each an elongated plate-like structure, so that the picking mechanism 20 can grip one row of the battery units 100 at a time.

Further, the specific lengths of the first picking part 21 and the second picking part 22 may be determined by those skilled in the art according to the number of battery cells 100 that need to be stocked at one time.

As shown in fig. 4 and 5, in the solution of the present embodiment, the first pickup portion 21 includes a clamp plate, and the suction structure 30 includes a suction cup provided on the clamp plate. Specifically, the vertical length of the clamp plate is substantially the same as the cell length. The clamping plate is provided with a plurality of suckers which are arranged at intervals. Further, a through hole is provided at each position of the clamping plate for clamping the battery unit 100, and a plurality of suction cups are arranged at intervals around the through hole.

The suction cup may suck the battery cell 100 by generating a negative pressure such that the side of the battery cell 100 is adjacent to the clamping plate and the battery cell 100 is prevented from falling off the clamping plate.

As shown in fig. 4 and 5, in the solution of the present embodiment, the picking mechanism 20 further includes a mounting frame 23. The mounting frame 23 is movably disposed on the frame 10, the first pickup portion 21 is fixedly disposed on the mounting frame 23, and the second pickup portion 22 is movably disposed on the mounting frame 23.

Specifically, the first picking part 21 is fixedly disposed on the mounting frame 23 in a vertical direction, that is, a side surface of the first picking part 21 is a vertical plane, so that when the adsorption structure 30 adsorbs the battery unit 100, the battery unit 100 also maintains a standing posture and facilitates tray loading. As shown in fig. 4 and 6, the second picking part 22 is movably disposed on the mounting frame 23, that is, the position of the first picking part 21 is fixed, and when the second picking part 22 is closed relative to the first picking part 21, the two are in a gripping state, and when the second picking part 22 is opened relative to the first picking part 21, the two are in an opening state.

As shown in fig. 4 and 5, in the solution of the present embodiment, the upper end of the second picking portion 22 is rotatably disposed on the mounting frame 23, the picking mechanism further includes a second driving mechanism 24, and the second driving mechanism 24 drives the second picking portion 22 to swing. That is, when the second pickup 22 swings upward from the vertical position, the first pickup 21 and the second pickup 22 change from the gripping state to the open state. Meanwhile, after the second picking part 22 swings upward, i.e., it is retracted from the front position of the first picking part 21, so that the battery cell 100 can be closely attached to the disk-mounted battery cell 100 without any gap when the battery cell 100 is loaded.

As shown in fig. 4 and 5, in the technical solution of the present embodiment, a slide rail 231 is disposed on the mounting frame 23. The pick-up mechanism 20 further comprises a slider 25, a swing link 26 and a link 27. The slider 25 is disposed on the slide rail 231, and the second driving mechanism 24 drives the slider 25 to slide on the slide rail 231. The swing rod 26 is bent, one end of the swing rod 26 is hinged to the mounting frame 23, the other end of the swing rod 26 is connected with the second pickup portion 22, and two ends of the connecting rod 27 are respectively hinged to the slider 25 and the swing rod 26.

In particular, as can be seen in connection with fig. 5, the oscillating bar 26 has a substantially L-shaped configuration, one end of which is hinged to the mounting bracket 23 and the other end of which is swingable and connected to the second pickup portion 22. The slide block 25 slides on the slide rail 231, and two ends of the connecting rod 27 are respectively hinged with the swing rod 26 and the slide block 25. The second driving mechanism 24 is preferably a driving cylinder, a push rod of the driving rod is connected with the slide block 25, and the slide block 25 can be driven to slide on the slide rail 231 when the push rod of the driving cylinder extends or retracts.

Based on the above structure, it can be understood by those skilled in the art that when the push rod of the driving cylinder retracts, the slide block 25 and the connecting rod 27 can drive the swing rod 26 to swing upwards, that is, the second picking part 22 is driven to swing upwards. When the push rod of the driving cylinder retracts, the swing rod 26, that is, the second picking part 22, can be driven to swing upwards by the slide block 25 and the connecting rod 27. When the push rod of the driving cylinder extends, the swing rod 26, that is, the second picking part 22, can be driven to swing upward by the slide block 25 and the connecting rod 27.

As can be seen from fig. 4 and 5, the slide rail 231, the slider 25, the swing link 26 and the connecting rod 27 are arranged at intervals along the horizontal direction, and are arranged in a one-to-one correspondence manner. The ends of the swing links 26 are connected to the second pickup unit 22, and the second pickup unit 22 can be smoothly swung up and down. Further, the plurality of sliders 25 may be driven by one second driving mechanism 24, or may be driven by each of the plurality of second driving mechanisms 24.

As shown in fig. 2, in the solution of the present embodiment, the battery tray loading device further includes a feeding mechanism 50, and the feeding mechanism 50 is adapted to flow the battery unit 100 to below the picking mechanism 20. Specifically, the feeding mechanism 50 can circulate the row of battery units 100 to the lower side of the rack 10, and the picking mechanism 20 grips and moves the row of battery units 100 onto the tray 200.

As shown in fig. 2, in the solution of the present embodiment, the feeding mechanism 50 includes a conveying structure 51 and a plurality of baffles 52 disposed above the conveying structure 51, the conveying structure 51 extends to the lower side of the rack 10, the plurality of baffles 52 are disposed in parallel and at intervals, and the interval between adjacent baffles 52 is adapted to the thickness of the battery unit 100. Specifically, when the battery units 100 are circulated, the battery units 100 are vertically placed between the adjacent baffles 52, and the bottoms of the battery units 100 are driven by the conveying structure 51 to move and finally positioned below the rack 10. That is, the transport structures 51 act as a gapless team of multiple cells 100 and form a row.

Further, the feeding mechanism 50 feeds the plurality of battery cells 100 at a time, thereby forming the plurality of battery cells 100 in a row. As can be seen from fig. 2, the conveying structure 51 includes a plurality of driving wheels, and the driving wheels can move the plurality of battery units 100 in one direction until there is no gap between a row of the plurality of battery units 100, so as to further improve the tightness of the rack of the battery units 100 after the tray is loaded.

Example two

As shown in fig. 7, the battery tray loading apparatus of the second embodiment is different from the first embodiment in that the first pickup part 21 in the second embodiment is used to pick up the top surface or the bottom surface of the battery unit 100, and preferably the top surface.

As can be seen from fig. 7, the suction structure 30 (not shown in the figure) on the first pickup portion 21 may suck the top surface of the battery unit 100, and preferably, the first pickup portion 21 is provided in plurality at intervals, and the plurality of first pickup portions 21 are provided on the mounting bracket 23 along a linear direction. Further, a guide rail is provided on the mounting frame 23, and each first picking part 21 is slidably provided on the guide rail by a slider, that is, each first picking part 21 can be moved independently.

As shown in fig. 7, the picking mechanism 20 according to the second embodiment further includes a third driving mechanism 28, and the third driving mechanism 28 is disposed between two adjacent first picking portions 21 and can drive the adjacent first picking portions 21 to move closer to or away from each other.

Specifically, the third driving mechanism 28 is a driving cylinder, and taking two adjacent first pickup units 21 as an example, a cylinder body of the driving cylinder is fixed to one of the battery units 100, and a push rod of the driving cylinder is fixed to the other first pickup unit 21. When the push rod of the driving cylinder retracts, the two adjacent first picking parts 21 can be driven to move oppositely and cling to each other.

In the second embodiment, in addition to the difference in the surface of the first picking part 21 for picking up the battery cells 100, the difference is that the plurality of battery cells 100 in a row may not be in a close-fitting state when the picking mechanism 20 picks up a row of battery cells 100 in the second embodiment.

Specifically, with reference to the above description, after the row of battery units 100 in the first embodiment is transported, the row of battery units 100 is closely arranged by the constantly rotating rollers, and then the first picking part 21 and the second picking part 22 pick up the battery units. However, in the second embodiment, before the battery cells 100 in one row are picked up, the adjacent battery cells 100 may be in a gapped state. As shown in fig. 6, after picking, the third driving mechanism 28 drives the adjacent first picking portions 21 to move toward each other, so that the plurality of first picking portions 21 are arranged in close contact, that is, the row of battery units 100 is arranged in close contact.

Example three:

the battery tray loading device according to the third embodiment is different from the first and second embodiments in that the pickup mechanism 20 according to the third embodiment is used for picking up two small sides of a row of battery units 100 on both sides. Specifically, the pickup mechanism 20 in the third embodiment includes a pair of holding claws that are respectively brought into contact with two small side surfaces of a row of the battery units 100 and that grip the row of the battery units 100 from both sides.

The clamping jaws can enable a row of battery units 100 to be tightly attached, and no gap exists between two adjacent battery units 100.

In addition, in order for the clamping jaws to interfere with the disk-loaded battery unit 100 during subsequent disk loading, the clamping jaws should be within the range of the small side of the battery unit 100 after the clamping jaws clamp the small side of the battery unit 100 in turn.

As shown in fig. 2, the present embodiment further provides a battery tray loading system, which includes the above battery tray loading device and a tray 200, wherein multiple rows of battery units 100 are installed in the tray 200, and the battery units 100 are loaded by the above battery tray loading device. After the tray is loaded, the adjacent battery units 100 in each row of battery units 100 are tightly attached, and the battery units 100 in the adjacent rows are tightly attached, so that the gapless tray loading is realized.

The embodiment also provides a battery production line which comprises the battery tray loading device.

The embodiment also provides a battery tray loading method, which is implemented by using the battery tray loading device, and the battery tray loading method includes:

step S1: the pickup mechanism 20 picks up a column of the battery units 100;

step S2: the first driving mechanism 40 drives the picking mechanism 20 to move to the tray 200;

and step S3: the pickup mechanism 20 puts the battery unit 100 into the tray 200;

and step S4: the steps S1 to S3 are repeated to closely attach the battery cells 100 of the adjacent rows.

Since the three embodiments of the battery tray loading device have different structures, the battery tray loading device of different embodiments has some differences in the battery tray loading method, and the following description is made in detail:

1. tray loading is carried out by utilizing the battery tray loading device of the first embodiment

Specifically, in step S1, the feeding mechanism 50 assembles a row of the battery cells 100 and then conveys the assembled battery cells to the lower side of the rack 10. The rollers of the conveying structure 51 continuously rotate so that adjacent battery cells 100 in a row of battery cells 100 are in close contact without a gap.

When a row of battery cells 100 is turned into position, the first driving mechanism 40 drives the pickup mechanism 20 to move above the battery cells 100 and move downward. The adsorption structure 30 on the first picking part 21 adsorbs the large side of the battery unit 100 and picks up the battery unit, and in the process, the push rod of the second driving mechanism 24 extends out, so that the swing rod 26 swings downwards, and further drives the second picking part 22 to swing towards the first picking part 21, thereby assisting in clamping a row of battery units 100.

In the above step S2, the first driving mechanism 40 drives the pickup mechanism 20 to move from above the feeding mechanism 50 to the tray 200.

In step S3, the suction structure 30 generates a negative pressure such that the side surface of the battery cell 100 abuts against the side surface of the first pickup 21. At the same time, the push rod of the second driving mechanism 24 is retracted, so that the swing link 26 swings upward, thereby driving the second pick-up part 22 to swing upward and release the battery unit 100. After the second picking part 22 swings upward, the second picking part moves away from the front position of the first picking part 21, so that the battery unit 100 adsorbed on the first picking part 21 can be closely attached to the battery unit 100 loaded on the tray when the battery unit 100 is placed on the picking mechanism 20.

In step S4, the above steps S1 to S3 are repeated, and a row of battery cells 100 can be repeatedly placed in the tray 200, thereby completing the tray loading.

2. Tray loading is performed by using the battery tray loading device of the second embodiment

In step S1, after the plurality of first picking parts 21 pick up the top surfaces of the battery cells 100 in a row, the third driving mechanism 28 moves the adjacent first picking parts 21 toward each other, so that the adjacent battery cells 100 in the row of battery cells 100 are closely attached without a gap.

3. Tray loading is carried out by using the battery tray loading device of the third embodiment

In step S1, the two jaws of the picking mechanism 20 grip the two small sides of the row of battery units 100, so that the adjacent battery units 100 in the row of battery units 100 are tightly fitted without a gap.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A battery pack, comprising:

a tray (200);

and a plurality of battery cells (100) disposed in the tray (200), the plurality of battery cells (100) being arranged in a plurality of rows and forming an array structure in which adjacent battery cells (100) abut against each other without a gap.

2. The battery pack according to claim 1, wherein the tray (200) comprises a long side (201) and a short side (202), the battery cell (100) is square and has a large side and a small side, the large side being disposed towards the short side (202) and the small side being disposed towards the long side (201).

3. The battery pack according to claim 1 or 2, wherein the tray (200) comprises a bottom plate (210) and four side plates (220) disposed at edges of the bottom plate (210), and the bottom plate (210) is provided with a heating structure.

4. A battery tray loading apparatus for loading the battery pack according to any one of claims 1 to 3, comprising:

a pick-up mechanism (20) adapted to pick up a row of a plurality of battery units (100), the pick-up mechanism (20) being capable of picking up non-adjacent contact surfaces of the row of the plurality of battery units (100) such that adjacent battery units (100) abut each other without a gap before the battery units (100) are taken off the pick-up mechanism (20);

a first driving mechanism (40) which is suitable for driving the picking mechanism (20) to move and pick up the battery unit (100).

5. The battery tray loading device according to claim 4, wherein the battery unit (100) has a square structure, the battery unit (100) has a top surface, a bottom surface, two opposite large side surfaces and two opposite small side surfaces, and the picking mechanism (20) can pick up the top surface, or can pick up the bottom surface, or can pick up the large side surfaces, or can pick up two small side surfaces located at the outermost side in a row of a plurality of battery units (100).

6. Battery loading device according to claim 5 characterized in that said pick up mechanism (20) comprises a first pick up (21), on said first pick up (21) an adsorption structure (30) is provided, said first pick up (21) being adapted to pick up the large side of said battery unit (100).

7. The battery loading apparatus according to claim 6, wherein the pickup mechanism (20) further includes a second pickup portion (22) disposed opposite to the first pickup portion (21), the first pickup portion (21) and the second pickup portion (22) having a gripping state and an open state, and the second pickup portion (22) moves upward and avoids a front side position of the first pickup portion (21) when the first pickup portion (21) and the second pickup portion (22) are in the open state.

8. The battery tray device according to claim 7, wherein the first pickup portion (21) and the second pickup portion (22) are each of a long strip-like structure.

9. The battery tray loading device according to claim 7 or 8, wherein the first pickup portion (21) comprises a clamping plate, and the suction structure (30) comprises a suction cup provided on the clamping plate.

10. The battery tray loading device according to claim 7 or 8, wherein the pickup mechanism (20) further comprises a mounting frame (23), the first pickup (21) being fixedly arranged on the mounting frame (23), and the second pickup (22) being movably arranged on the mounting frame (23).

11. The battery tray loading device according to claim 10, wherein the upper end of the second pickup portion (22) is rotatably provided on the mounting bracket (23), and the pickup mechanism further comprises a second driving mechanism (24), and the second driving mechanism (24) drives the second pickup portion (22) to swing.

12. The battery tray loading device according to claim 11, wherein a sliding rail (231) is disposed on the mounting frame (23), the pickup mechanism (20) further comprises a slider (25), a swing rod (26) and a connecting rod (27), the slider (25) is disposed on the sliding rail (231), the second driving mechanism (24) drives the slider (25) to slide on the sliding rail (231), the swing rod (26) is bent, one end of the swing rod (26) is hinged to the mounting frame (23), the other end of the swing rod (26) is connected to the second pickup portion (22), and two ends of the connecting rod (27) are hinged to the slider (25) and the swing rod (26), respectively.

13. The battery tray device according to claim 7 or 8, characterized in that it further comprises a feeding mechanism (50), said feeding mechanism (50) being adapted to circulate the battery cells (100) below the picking mechanism (20).

14. The battery tray loading device according to claim 13, wherein the feeding mechanism (50) comprises a conveying structure (51) and a plurality of baffles (52) arranged above the conveying structure (51), the conveying structure (51) extends to the lower part of the picking mechanism (20), the baffles (52) are arranged in parallel and at intervals, and the interval between the adjacent baffles (52) is matched with the thickness of the battery unit (100).

15. Battery tray filling device according to claim 14, wherein the transport structure (51) comprises a plurality of rollers.

16. The battery tray device according to claim 5, wherein the pick-up mechanism (20) comprises a first pick-up portion (21) on which the suction structure (30) is provided, the first pick-up portion (21) being adapted to pick up a top surface or a bottom surface of the battery unit (100).

17. The battery tray loading device according to claim 16, wherein the pickup mechanism (20) further comprises a mounting frame (23), the first pickup portion (21) is provided in plurality at intervals, and each first pickup portion (21) is movably provided on the mounting frame (23).

18. The battery tray loading apparatus according to claim 17, wherein the pickup mechanism (20) further comprises a third driving mechanism (28), and the third driving mechanism (28) is provided between the adjacent first pickup portions (21) and picks up and drives the adjacent first pickup portions (21) to move closer to or away from each other.

19. The battery tray loading device according to claim 5, wherein the picking mechanism (20) comprises a gripping jaw adapted to grip two outermost small sides of a row of the plurality of battery units (100).

20. A battery palletizing system, comprising a battery palletizing device according to any one of claims 4 to 19 and a tray (200), wherein the battery units (100) in the tray (200) are arranged without clearance by the battery palletizing device.

21. A battery production line, characterized by comprising a battery tray loading apparatus according to any one of claims 4 to 19.