CN218101580U

CN218101580U - Big module 3U modularization energy memory

Info

Publication number: CN218101580U
Application number: CN202221969767.1U
Authority: CN
Inventors: 李小武; 王伟光; 王子濠; 王顶
Original assignee: Shanghai Electric Guoxuan New Energy Technology Nantong Co ltd
Current assignee: Shanghai Electric Guoxuan New Energy Technology Nantong Co ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-12-20
Anticipated expiration: 2032-07-28

Abstract

The utility model discloses a big module 3U modularization energy memory, including box, insulating layer, three big module, baffle, battery management system assembly, and case lid, the bottom of the box all is equipped with one deck insulating layer with the afterbody, three big module sets gradually in the box according to the order, leave 2-3 mm's assembly gap in the direction of box width and big module length and be used for installing the baffle, be equipped with the epoxy board between baffle and the big module, the baffle outside is equipped with battery management system assembly, the up end of big module is covered with the case lid, be equipped with the first insulating layer between case lid and the big module; insulating/thermal-insulated material is used to the module between, effectively guarantees module insulating properties, practices thrift the material and the curing time of gluing, has reduced corresponding equipment and artifical input, reduces module production cycle.

Description

Big module 3U modularization energy memory

Technical Field

The utility model relates to an energy is equipped and energy storage battery technical field specifically is a big module 3U modularization energy memory.

Background

The current society has higher and higher requirements on the development of green energy, and various energy storage devices are widely applied to various fields. In recent years, the trend of extracting lead acid from standby power supplies such as communication base stations and data centers and lithium batteries such as UPS has been developed, and the requirements of customers on the occupation area, energy density and maintainability of the standby power supplies and the small-sized household energy storage are increasingly increased due to the rise of household energy storage products. In the prior art, the height of a cabinet type 19-inch 48V150Ah battery pack energy storage device is generally more than 6U, and the device has the advantages of large volume, low space utilization rate and low energy density.

In the prior art, the internal module of the case and the case body are mostly fixed by screws, pressing beams and the like, so that the overall height of the battery pack cannot be reduced, and the height space utilization rate is low; the modules mostly adopt a frame type standard small module form connected by end plates and side plates, and the number of the modules is large under the same size, so that module components are added; each group of modules are connected by long rows, so that the sampling precision is influenced, the space utilization rate is low, and the material cost is increased; in addition, the frame-type module battery cores are fixed by gluing, the grouping process is complex, the production efficiency is low, and the after-sale maintenance cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a big module 3U modularization energy memory to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a big module 3U modularization energy memory, includes box, three big module, baffle, battery management system assembly to and the case lid, bottom half and afterbody all are equipped with the one deck insulating layer, and are three big module sets gradually in the box according to the order, the assembly clearance that leaves 2-3mm in the direction of box width and big module length is used for installing the baffle, be equipped with the epoxy board between baffle and the big module, the baffle outside is equipped with battery management system assembly, the up end of big module is stamped the case lid, be equipped with the first insulation layer between case lid and the big module.

Preferably, the large module comprises a plurality of energy storage batteries, buffer layers and second insulating layers, the energy storage batteries are adjacently attached, the buffer layers are arranged between the adjacent energy storage batteries, every three energy storage batteries are connected in parallel to form a string, and the second insulating layer is arranged between every two adjacent energy storage batteries;

big module both sides are equipped with the end plate, also set up the buffer layer between end plate and the adjacent energy storage battery, two through the ribbon bundle between end plate and the big module, be equipped with on the end plate and be used for the spacing recess of ribbon.

Preferably, three large modules are connected through connecting row laser welding and screws, and a series-connection row multi-point connection structure is adopted.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses simple structure, the modern design utilizes the case lid on the box, compresses tightly the module, under the prerequisite of guaranteeing group battery overall mechanical strength, electric safety, has reduced module income case fixed space, and the assembly is simple, convenient, and production efficiency is high;

meanwhile, the large module adopts a press-fitting design, so that the space utilization rate of the battery box is greatly improved, and the energy density of the battery pack is improved;

in addition, insulating/heat-insulating materials are used among the modules, so that the insulating property of the modules is effectively ensured, glue materials and curing time are saved, corresponding equipment and labor input are reduced, and the production period of the modules is shortened;

the series-parallel connection mode of the modules is systematically designed, so that the length of a connecting row between the modules is reduced, the pressure drop between the modules is reduced, and the sampling precision is improved; the high modularization standard design of 3U carries on different models, function protection shield and can be suitable for different energy storage scenes, and the commonality is strong.

Drawings

FIG. 1 is an exploded view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the large module of the present invention;

fig. 3 is a schematic view of the multi-point connection structure of the series row between three large modules of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Referring to fig. 1, the present invention provides a technical solution: a large module 3U modular energy storage device comprises a box body 1, three large modules 2, a baffle 11, a battery management system assembly 3 and a box cover 12;

the bottom and the tail of the box body 1 are bonded and isolated by a back adhesive insulating material to form an insulating layer 13;

the three large modules are sequentially pushed into the box body, and 2-3mm assembly gaps are reserved in the direction of the width of the box body 1 and the length of the large module 2, so that the baffle 11 is convenient to assemble on one hand, and a breathing space is reserved for expansion of the lithium battery on the other hand;

the baffle 11 is isolated from the large module 2 through an epoxy plate 14, the depth displacement of the module in the case is limited by the baffle, and a battery management system assembly 3 is arranged on the outer side of the baffle 11;

the upper end face of big module 2 has been covered by case lid 12, be equipped with first insulation layer 15 between case lid 12 and big module 2, rely on the case lid to compress tightly top first insulation layer to it is spacing at the box direction of height to restrict big module.

In this embodiment, as shown in fig. 2, the large module 2 includes a plurality of energy storage cells 21, buffer layers 22 and second insulating layers 23, the plurality of energy storage cells 21 are adjacently attached to each other, the buffer layers 22 are disposed between the adjacent energy storage cells 21, then every three energy storage cells 21 are connected in parallel to form a string, and the second insulating layer 23 is disposed between every two adjacent energy storage cells 21;

set up end plate 24 in big module 2 both sides, also set up buffer layer 22, two between end plate 24 and the adjacent energy storage battery 21 bind through ribbon 25 between end plate 24 and the big module 2, be equipped with on the end plate 24 and be used for the spacing recess 241 of ribbon 25, the ribbon will be big module and end plate bundle back, and its both ends all block in spacing recess.

In the embodiment, as shown in fig. 3, three large modules 2 are connected by laser welding and screws through a connecting row, and the adopted series-parallel connection mode is a series-row multi-point connection structure;

therefore, the consistency of the polarity arrangement of each large module and the consistency of materials such as plastic parts and the like can be ensured, the production efficiency is improved, the universality of the materials is ensured, and the cost is saved;

in conclusion, the arrangement mode not only can greatly compress the size of the modules in the depth direction of the case and improve the space utilization rate of the case, but also can reduce the length of the serial rows among the modules, reduce the pressure drop of the serial rows of the modules and improve the sampling precision;

in addition, the arrangement mode arranges the positive and negative electrodes of the battery pack on the front side of the battery pack, so that the distance from the positive and negative electrodes to the battery management system assembly is reduced, the material cost is saved, and the reliability of the scheme is improved.

To sum up, the utility model utilizes the case cover on the case body to compress the module, reduces the fixed space for putting the module into the case on the premise of ensuring the whole mechanical strength and the electrical safety of the battery pack, and has simple and convenient assembly and high production efficiency;

although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a big module 3U modularization energy memory, includes box (1), three big module (2), baffle (11), battery management system assembly (3) to and case lid (12), its characterized in that: the battery box is characterized in that the bottom of the box body (1) and the tail of the box body are respectively provided with an insulating layer (13) and three large modules are sequentially arranged in the box body, an assembly gap of 2-3mm is reserved in the direction of the width of the box body (1) and the length of the large modules (2) and used for installing the baffle (11), an epoxy plate (14) is arranged between the baffle (11) and the large modules (2), a battery management system assembly (3) is arranged on the outer side of the baffle (11), a box cover (12) covers the upper end face of the large modules (2), and a first insulating layer (15) is arranged between the box cover (12) and the large modules (2).

2. The large module 3U modular energy storage device of claim 1, wherein: the large module (2) comprises a plurality of energy storage batteries (21), buffer layers (22) and second insulating layers (23), the energy storage batteries (21) are adjacently attached, the buffer layers (22) are arranged between the adjacent energy storage batteries (21), every three energy storage batteries (21) are connected in parallel to form a string, and the second insulating layers (23) are arranged between every two adjacent energy storage batteries (21);

big module (2) both sides are equipped with end plate (24), also set up buffer layer (22), two between end plate (24) and adjacent energy storage battery (21) bind through ribbon (25) between end plate (24) and big module (2), be equipped with on end plate (24) and be used for ribbon (25) spacing recess (241).

3. The large module 3U modular energy storage device of claim 1, wherein: three laser welding is arranged through the connection between big module (2) to and screw connection adopts series connection row multipoint formula connection structure.