CN219801176U

CN219801176U - Echelon battery pack

Info

Publication number: CN219801176U
Application number: CN202321012002.3U
Authority: CN
Inventors: 丁亚运; 于红丞; 李怀锦; 李强; 曾斌
Original assignee: Shanghai Yirui Automobile Technology Co ltd
Current assignee: Shanghai Yirui Automobile Technology Co ltd
Priority date: 2023-04-28
Filing date: 2023-04-28
Publication date: 2023-10-03
Anticipated expiration: 2033-04-28

Abstract

The utility model relates to the field of battery packs and discloses a gradient battery pack. The echelon battery pack comprises a shell, and a battery module and a battery management module which are arranged in the shell, wherein the battery module is electrically connected with the battery management module, the shell comprises a bottom plate and a top plate which are oppositely arranged, and a plurality of side face sealing plates used for connecting the bottom plate and the top plate, the bottom plate and the plurality of side face sealing plates, two adjacent side plates and the top plate are all connected through bolts, the thickness of the bottom plate, the side face sealing plates and the top plate is 1mm-4mm, the manufacturing process is simple, the structure is compact, and the cost is low.

Description

Echelon battery pack

Technical Field

The utility model relates to the field of battery packs, in particular to a echelon battery pack.

Background

As one of the key components of the new energy automobile, the power battery will enter a large-scale retirement period along with the high-speed development of the new energy automobile industry, and the development and recycling of the power battery are urgent. The development planning of new energy automobile industry (2021-2035) proposes that the recycling system of power battery recovery, cascade utilization and renewable resources be perfected; the full life cycle supervision of the power battery is enhanced; the innovative application of the echelon product of the power battery in the fields of energy storage, energy preparation, charging and electricity changing and the like is supported; and the technical research and development of residual energy detection, residual value evaluation, recombination utilization, safety management and the like are enhanced.

The echelon utilization is still in a starting stage, the direct disassembly and recovery has economy, the battery energy is not suitable for a passenger car after being attenuated on the basis, the residual energy storage capacity of the battery can be reused, the battery core of the battery is recombined into a new battery module after being disassembled, the battery module can be applied to equipment such as workshop logistics vehicles and forklifts, the battery pack shell structure in the prior art is manufactured by adopting a steel plate welding process or an aluminum casting process, the process is complex, the cost is high, and the battery pack can be applied and popularized disadvantageously.

Disclosure of Invention

The utility model aims to provide a echelon battery pack, which has the advantages of mature processing technology, simple manufacture, low cost and better popularization and application.

In order to solve the technical problems, the embodiment of the utility model provides a technical scheme as follows:

the utility model provides a echelon battery package, includes the shell to and set up battery module and battery management module in the shell, battery module is connected with the battery management module electricity, the shell is including relative bottom plate and the roof that set up, and be used for connecting a plurality of side shrouding of bottom plate and roof, the bottom plate with a plurality of between the side shrouding, between two adjacent curb plates, roof and a plurality of all pass through bolted connection between the side shrouding, the thickness of bottom plate, side shrouding, roof is 1mm-4mm.

Further, the side shrouding is four, is first shrouding, second shrouding, third shrouding and fourth shrouding respectively, first shrouding with the third shrouding is relative, the second shrouding with the fourth shrouding is relative, first shrouding the second shrouding the third shrouding with the fourth shrouding all is equipped with the edge portion of bending, first shrouding the second shrouding the third shrouding with the fourth shrouding passes through edge portion head and tail connection in proper order and constitutes upper and lower penetrating square barrel, the bottom plate with the roof respectively with upper and lower opening connection of square barrel.

Further, be equipped with first layer board in the shell, first layer board with bottom plate parallel arrangement, first layer board includes the bottom surface to and along the perpendicular first bending portion that extends all around of bottom surface, first layer board passes through first bending portion with side shrouding fixed connection, first layer board upper surface is equipped with first supporting beam and for the perpendicular second supporting beam that sets up of first supporting beam.

Further, be equipped with the second layer board in the box, the second layer board with the bottom plate is parallel, the second layer board includes the bottom surface to and along the second bending portion of bottom surface perpendicular extension all around, the second layer board passes through the second bending portion with side shrouding fixed connection, second layer board upper surface is equipped with third supporting beam and for the fourth supporting beam of third supporting beam perpendicular setting.

Further, the battery modules are four, wherein two battery modules are fixedly connected with the first supporting plate through a first supporting beam, and two battery modules are fixedly connected with the second supporting plate through a third supporting beam.

Further, the bottom plate includes the diapire to and along the perisporium of diapire perpendicular upward extension all around, be equipped with balancing weight or two battery modules between first layer board and the bottom plate.

Further, the first shrouding, the second shrouding, third shrouding, fourth shrouding surface along horizontal direction integrated into one piece suppresses have with the recess that first bending portion and second bending portion correspond, the bottom of recess is protruding to the shell inside, first bending portion and second bending portion use bolt fixed connection with the recess.

Further, be equipped with the access hole on the roof, be equipped with the access cover on the access hole, the access cover closes the access cover and seals.

Further, the upper surface of the top plate is provided with a handle.

Still further, the upper end of first shrouding is equipped with first hanging hole, the upper end of third shrouding is equipped with the second hanging hole that corresponds with first hanging hole, first hanging hole with second hanging hole horizontal position is higher than the upper surface of roof.

Compared with the prior art, the echelon battery pack provided by the utility model has the following advantages:

1. the whole structure adopts a splicing structure, the bottom plate, the top plate and the side sealing plates are fixedly connected through bolts, and the bottom plate, the top plate and the side sealing plates are all made of steel plates with the thickness of 1-4mm, so that compared with a battery pack manufactured by adopting a welding process or a die casting process in the prior art, the manufacturing is simpler, the production cost is lower, and the battery module is convenient to detach, repair and replace;

2. by arranging the first supporting plate and the second supporting plate in the shell, the battery module is reasonably placed in a layered mode, the battery pack layout is compact, the whole volume of the battery pack can be effectively reduced, and the cost reduction is facilitated;

3. through the design of side shrouding and bottom plate upper edge portion for between bottom plate and the side shrouding, be connected between the adjacent side shrouding more conveniently, through the recess design that corresponds with the layer board portion of bending on the side shrouding, not only increased the intensity of side shrouding effectively, be favorable to reducing the volume of battery package simultaneously, make the design of whole battery package compacter.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.

FIG. 1 is an exploded view of a gradient battery pack in one embodiment of the utility model;

FIG. 2 is a schematic perspective view of a gradient battery pack according to one embodiment of the utility model;

FIG. 3 is a schematic view showing the internal structure of a gradient battery pack according to an embodiment of the present utility model;

fig. 4 is a schematic view showing the structure of a first pallet and a second pallet in a gradient battery pack according to an embodiment of the present utility model.

Reference numerals: 1', a housing; 1. a bottom plate; 11. a bottom wall; 12. a peripheral wall; 2. a top plate; 21. an access cover; 22. a handle; 3. a first sealing plate; 32. a first hanging hole; 4. a second sealing plate; 5. a third sealing plate; 52. a second hanging hole; 6. a fourth sealing plate; 31 41, 51, 61, grooves; 13 23, 33, 42, 53, 62, edge portions; 7. a first pallet; 71. a first support beam; 72. a second support beam; 73. a first bending part; 8. a second pallet; 81. a third support beam; 82. a fourth support beam; 83. a second bending part; 9. balancing weight; 10. a first battery module; 10', a second battery module.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. However, those of ordinary skill in the art will understand that in various embodiments of the present utility model, numerous technical details have been set forth in order to provide a better understanding of the present utility model. However, the technical solutions claimed in the claims of the present utility model can be realized without these technical details and various changes and modifications based on the following embodiments.

As shown in fig. 1-4, the battery pack comprises a housing 1', and a battery module and a battery management module which are arranged in the housing 1', wherein the battery module is electrically connected with the battery management module, the housing 1' comprises a bottom plate 1 and a top plate 2 which are oppositely arranged, and a plurality of side sealing plates used for connecting the bottom plate 1 and the top plate 2, the bottom plate 1 and the plurality of side sealing plates, two adjacent side sealing plates and the top plate 2 are all connected through bolts, and the thickness of a plate of the bottom plate 1, the side sealing plates and the top plate 2 is 1-4mm.

Specifically, the side face shrouding is including relative first shrouding 3 and the third shrouding 5 that set up to and relative second shrouding 4 and the fourth shrouding 6 that set up, the shrouding is whole roughly square, the edge of first shrouding 3, second shrouding 4, third shrouding 5, fourth shrouding 6 connects gradually and forms a penetrating square barrel from top to bottom, edge and its place side shrouding are integrated into one piece's edge of bending, be equipped with the connecting hole on the edge, the edge of first shrouding 3, second shrouding 4, third shrouding 5, fourth shrouding 6 passes through bolt fixed connection.

The bottom plate 1 comprises a bottom wall 11 and a peripheral wall 12 vertically extending along the peripheral edge of the bottom wall 11, the edge of the peripheral wall 12 is turned outwards to form an edge part 13, the edge part 13 of the bottom plate 1 is fixedly connected with the lower ends of the first sealing plate edge part 33, the second sealing plate edge part 42, the third sealing plate edge part 53 and the fourth sealing plate edge part 62 through bolts to form a box-shaped structure with one open end, the top plate 2 is provided with an edge part 23 which is bent towards the inside of the shell and corresponds to the second sealing plate 4 and the fourth sealing plate 6, and the second sealing plate 4 and the fourth sealing plate 6 are fixedly connected with the edge part 23 of the top plate through bolts; the joints of the bottom plate 1, the top plate 2 and the side sealing plates are sealed by sealant, so that the overall tightness of the battery pack is ensured.

In an embodiment, the upper end of the first sealing plate 3 is further provided with a first hanging hole 32, the first hanging hole 32 is exposed outside the casing 1', the horizontal position of the first hanging hole is higher than the upper surface of the top plate 2, the upper end of the third sealing plate 5 is provided with a second hanging hole 52 corresponding to the first hanging hole 32, the first hanging hole 32 and the second hanging hole 52 are symmetrically arranged relative to the center of the casing 1', and the battery pack can be conveniently transported, installed and the like through the hanging holes.

In one embodiment, the top plate 2 is provided with an access hole, the access hole is provided with an access cover 21, the access cover 21 seals the access cover, and the access cover 21 is fixedly connected with the top plate 2 through bolts; the upper surface of the top plate 2 is also provided with a handle 22, and when the handle 22 pulls the top plate 2, for example, when a battery module needs to be replaced, the whole top plate 2 needs to be opened, and the use of the handle can be convenient for the disassembly and the installation of the top plate 2.

In one embodiment, the housing 1' further includes a first supporting plate 7 and a second supporting plate 8 disposed inside the housing, where the first supporting plate 7 and the second supporting plate 8 are disposed in parallel at intervals, the first supporting plate 7 includes a bottom surface and a first bending portion 73 extending vertically along the periphery of the bottom surface, the second supporting plate 8 includes a bottom surface and a second bending portion 83 extending vertically along the periphery of the bottom surface, two grooves 31 disposed at horizontal intervals are disposed in the first sealing plate corresponding to the bending portions of the first supporting plate and the second supporting plate, two grooves 41 disposed at horizontal intervals are disposed in the second sealing plate corresponding to the bending portions of the first supporting plate and the second supporting plate, two grooves 51 disposed at horizontal intervals are disposed in the third sealing plate corresponding to the bending portions of the first supporting plate and the second supporting plate, and two grooves 61 disposed at horizontal intervals are disposed in the fourth sealing plate corresponding to the bending portions of the first supporting plate and the second supporting plate; the bottom wall of the groove protrudes towards the inside of the shell 1', and the first bending part 73 and the second bending part 83 are fixedly connected with the groove through bolts; preferably, the groove and the side sealing plate where the groove is positioned are integrally formed, the bending resistance of the side sealing plate is enhanced, the strength of the side sealing plate can be increased, the depth of the groove is larger than the size of the exposed end after the bolts are fastened, and the end of the bolts after the installation does not exceed the outer surface of the shell.

In one embodiment, a balancing weight 9 is installed between the first supporting plate 7 and the bottom plate 1, a peripheral wall 11 on the bottom plate 1 limits the balancing weight 9, a first battery module 10 is installed between the first supporting plate 7 and the second supporting plate 8, the first battery module is two battery modules arranged side by side, a second battery module is installed between the second supporting plate 8 and the top plate 2, and the second battery module is two battery modules arranged side by side; specifically, the upper surface of the first supporting plate 7 is provided with first supporting beams 71 at parallel intervals, two first supporting beams 71 are provided with second supporting beams 72 at parallel intervals, the second supporting beams 72 are perpendicular to the first supporting beams 71, preferably, the end parts of the second supporting beams 72 are abutted to the first supporting beams 71, the first battery module 10 is fixedly connected with the first supporting beams 71 through bolts, and the first battery module 10 is fixedly arranged on the first supporting plate 7; the upper surface parallel interval of second layer board 8 is equipped with third supporting beam 81, and parallel interval is equipped with fourth supporting beam 82 between two third supporting beams 81, third supporting beam 81 sets up with fourth supporting beam 82 is perpendicular, preferred the tip and the third supporting beam 81 butt of fourth supporting beam 82, second battery module 10' passes through bolt fixed connection with third supporting beam 81, the fixed setting of second battery module 10' is on second layer board 8, battery management module and second battery module 10' set up the one end at second layer board 8 side by side, battery management module corresponds with the maintenance mouth position on roof 2, and after opening maintenance lid 21, maintenance personnel can overhaul battery management module through the maintenance mouth.

Of course, according to the different service environments and different requirements of the battery pack, the balancing weight 9 arranged between the bottom plate 1 and the first supporting plate 7 can be replaced by installing two battery modules side by side, and the battery modules are fixedly connected with the bottom plate 1.

The echelon battery pack shell base material provided by the utility model adopts a plate material with the thickness of about 1-4mm, the plate material is low carbon steel, and the shell can be processed by adopting a cold stamping process according to the physical properties of the thin plate low carbon steel, so that the processing size is stable, and the production efficiency is high.

It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of carrying out the utility model and that various changes in form and details may be made therein without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a echelon battery package, includes the shell to and set up battery module and battery management module in the shell, battery module is connected with the battery management module electricity, its characterized in that, the shell includes bottom plate and roof that set up relatively, and is used for connecting a plurality of side shrouding of bottom plate and roof, the bottom plate with a plurality of between the side shrouding, between two adjacent curb plates, roof and a plurality of all pass through bolted connection between the side shrouding, the thickness of bottom plate, side shrouding, roof is 1mm-4mm.

2. The gradient battery pack of claim 1, comprising: the side seal plates are four, namely a first seal plate, a second seal plate, a third seal plate and a fourth seal plate, wherein the first seal plate is opposite to the third seal plate, the second seal plate is opposite to the fourth seal plate, the first seal plate, the second seal plate, the third seal plate and the fourth seal plate are all provided with bent edge parts, the first seal plate, the second seal plate, the third seal plate and the fourth seal plate are sequentially connected end to end through the edge parts to form an upper square cylinder body and a lower square cylinder body, and the bottom plate and the top plate are respectively connected with the upper opening and the lower opening of the square cylinder body.

3. The gradient battery pack according to claim 2, wherein a first supporting plate is arranged in the housing, the first supporting plate is arranged in parallel with the bottom plate, the first supporting plate comprises a bottom surface and first bending parts extending vertically along the periphery of the bottom surface, the first supporting plate is fixedly connected with the side sealing plates through the first bending parts, and a first supporting beam and a second supporting beam which is arranged vertically relative to the first supporting beam are arranged on the upper surface of the first supporting plate.

4. The gradient battery pack according to claim 3, wherein a second supporting plate is arranged in the shell, the second supporting plate is parallel to the bottom plate, the second supporting plate comprises a bottom surface and second bending parts extending vertically along the periphery of the bottom surface, the second supporting plate is fixedly connected with the side sealing plates through the second bending parts, and a third supporting beam and a fourth supporting beam which is perpendicular to the third supporting beam are arranged on the upper surface of the second supporting plate.

5. The gradient battery pack of claim 4, wherein the battery modules are four, wherein two battery modules are fixedly connected to the first pallet by a first support beam, and wherein two battery modules are fixedly connected to the second pallet by a third support beam.

6. The gradient battery pack according to claim 3 or 4, wherein the bottom plate comprises a bottom wall and a peripheral wall extending vertically upwards along the periphery of the bottom wall, and a balancing weight or two battery modules are arranged between the first supporting plate and the bottom plate.

7. The gradient battery pack according to claim 4, wherein the surfaces of the first sealing plate, the second sealing plate, the third sealing plate and the fourth sealing plate are integrally molded with grooves corresponding to the first bending part and the second bending part along the horizontal direction, the bottoms of the grooves protrude into the shell, and the first bending part and the second bending part are fixedly connected with the grooves through bolts.

8. The gradient battery pack of claim 1, wherein the top plate is provided with an access opening, and wherein the access opening is provided with an access cover, and wherein the access cover seals the access opening.

9. The gradient battery pack of claim 1, wherein the top panel has a handle on an upper surface thereof.

10. The gradient battery pack according to any one of claims 2-5 and 7, wherein a first hanging hole is formed in an upper end of the first sealing plate, a second hanging hole corresponding to the first hanging hole is formed in an upper end of the third sealing plate, and a horizontal position of the first hanging hole and the second hanging hole is higher than an upper surface of the top plate.