CN219267816U

CN219267816U - Air-cooled battery plug box for energy storage

Info

Publication number: CN219267816U
Application number: CN202320216570.9U
Authority: CN
Inventors: 刘金玲; 郑阳; 齐炜煜; 陈亚兵; 关炀
Original assignee: Beijing Baoguang Zhizhong Energy Technology Co ltd
Current assignee: Beijing Baoguang Zhizhong Energy Technology Co ltd
Priority date: 2023-02-15
Filing date: 2023-02-15
Publication date: 2023-06-27
Anticipated expiration: 2033-02-15

Abstract

The utility model discloses an air-cooled battery plug box for energy storage, which comprises a battery core, wherein the battery core is connected with an upper plastic part, a lower plastic part and foam, the upper plastic part is connected with an aluminum row device through a positioning column and a limiting block, the aluminum row device comprises an anode-discharging aluminum row, a first serial aluminum row, a second serial aluminum row, a third serial aluminum row and a fourth serial aluminum row, the battery core is connected with the aluminum row device, a box body is arranged below the battery core, an upper cover is arranged at the top of the box body, an insulating part is arranged below the upper cover, an air inlet is arranged on a side plate of the box body, a first end plate, a second end plate, a top pressing rib and a supporting part are arranged above the box body, and a fan, a slave control connector and an anode-discharging copper row are arranged on a front panel of the box body. The air-cooled battery plug box for energy storage adopts the battery system without the modules, provides pretightening force for the battery core, and improves heat dissipation efficiency and welding efficiency.

Description

Air-cooled battery plug box for energy storage

Technical Field

The utility model relates to the technical field of battery equipment, in particular to an air-cooled battery plug box for energy storage.

Background

The plug-in box product is widely applied in the field of electronic equipment structures, and the plug-in box product has the function of realizing modularization of electronic equipment by adopting a standardized plug-in box. Is widely adopted and generates corresponding national standard and military standard in the communication industry, ship electronic equipment and large-scale military aircraft electronic equipment.

The battery heat dissipation is a problem which is always existed along with the development of the battery industry, and the battery core temperature is controlled on the premise of ensuring enough charge-discharge multiplying power and capacity, so the battery heat dissipation is a problem to be solved in the energy storage field. The heat dissipation modes in the energy storage industry include air cooling and liquid cooling. The battery is forced to be cooled through air by air cooling, and the battery pack is blown by an air conditioner and a fan to dissipate heat during design. The fully sealed plug box has limitation on heat dissipation effect because cold air can be blown to the surface of the plug box, and the heat dissipation requirement of the battery core can be met by a high-power air conditioner and a fan, so that the power consumption and the overall cost of the system are increased.

In addition, in order to meet the requirement of energy density, the size of the plug box is generally limited in design, so that the arrangement in the plug box is compact, which results in limited space for arranging the air duct in the plug box, and the heat dissipation requirement is difficult to meet.

The existing air-cooled battery plug box is assembled in a multi-module mode, module level assembly and module level welding are required, and in the assembly process, more parts are needed, so that the production efficiency is affected. When welding in the energy storage battery plug wire, the aluminum row is required to be limited, and the welding efficiency is affected.

Disclosure of Invention

The utility model aims to provide an air-cooled battery plug-in box for energy storage, which is used for solving the problems in the background technology.

In order to achieve the above purpose, the utility model provides an air-cooled battery plug box for energy storage, which comprises a battery core, wherein the battery core is connected with an upper plastic part, a lower plastic part and foam cotton, the upper plastic part is connected with an aluminum row device through a positioning column and a limiting block, the aluminum row device comprises an outlet aluminum row, a first serial aluminum row, a second serial aluminum row, a third serial aluminum row and a fourth serial aluminum row, the battery core is connected with the aluminum row device, a box body is arranged below the battery core, an upper cover is arranged at the top of the box body, an insulating part is arranged below the upper cover, an air inlet is formed in a side plate of the box body, a first end plate, a second end plate, a top pressing rib and a supporting part are arranged above the box body, and a fan, a slave control connector and an outlet copper row are arranged on a front panel of the box body.

Preferably, the lower plastic part is made of insulating flame-retardant materials, and an air duct is arranged on the lower plastic part.

Preferably, the upper plastic part is provided with a plurality of positioning columns and a plurality of limiting blocks.

Preferably, the battery cell is connected with the aluminum row in a laser welding mode.

Preferably, the discharge aluminum bar is made of nickel plating material.

Preferably, the upper cover is a sheet metal part and is provided with a hole site, the insulating part is provided with a corresponding hole site, and the upper cover is connected with the insulating part through a plastic rivet.

Preferably, the box is a sheet metal welding part provided with an air inlet, and the opening of the air inlet close to the front panel is smaller than the opening of the air inlet far away from the front panel.

Preferably, the first end plate and the second end plate are made of metal plates through splice welding and are fixed on the box body through bolts.

Preferably, the connectors are distinguished by two different colors.

Preferably, the outlet copper bar is a soft copper bar.

Therefore, the air-cooled battery plug box for energy storage adopts the structure, adopts a battery system without a module, provides pretightening force for the battery core, and improves heat dissipation efficiency and welding efficiency.

The technical scheme of the utility model is further described in detail through the drawings and the embodiments.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of an air-cooled battery box for storing energy according to the present utility model;

FIG. 2 is a schematic diagram of a battery cell, an upper plastic part and a lower plastic part of an embodiment of an air-cooled battery box for storing energy according to the present utility model;

fig. 3 is a schematic structural diagram of an aluminum busbar device according to an embodiment of an air-cooled battery box for storing energy of the present utility model;

FIG. 4 is an exploded view of an embodiment of an air cooled battery box for storing energy according to the present utility model;

FIG. 5 is a schematic view of a plastic part on an embodiment of an air-cooled battery box for storing energy according to the present utility model;

FIG. 6 is a schematic view of a plastic part under an embodiment of an air-cooled battery box for storing energy according to the present utility model;

fig. 7 is a side view of a plastic part structure of an air-cooled battery box for storing energy according to an embodiment of the present utility model.

Reference numerals

1. A battery cell; 2. a plastic part is arranged on the upper part; 3. a lower plastic part; 4. soaking cotton; 5. an air duct; 6. positioning columns; 7. a limiting block; 8. a discharge aluminum row; 9. a first series aluminum row; 10. the second serial aluminum row; 11. a third series aluminum row; 12. a fourth series aluminum bar; 13. an upper cover; 14. top rib pressing; 15. a discharge copper bar; 16. an insulating member; 17. a case; 18. an air inlet; 19. a first end plate; 20. a second end plate; 21. a support; 22. a fan; 23. slave control; 24. a connector.

Detailed Description

The technical scheme of the utility model is further described below through the attached drawings and the embodiments.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

As shown in fig. 1-7, the utility model provides an air-cooled battery plug box for energy storage, which comprises a battery cell 1, wherein the battery cell 1 is connected with an upper plastic part 2, a lower plastic part 3 and foam 4, the lower plastic part 3 is made of an insulating flame-retardant material, and the lower plastic part 3 is provided with an air duct 5, so that the battery cell 1 can be cooled in a large area, and the air cooling effect is improved.

The upper plastic part 2 is provided with a plurality of positioning columns 6 and a plurality of limiting blocks 7, the aluminum row device is limited and comprises an outlet electrode aluminum row 8, a first series connection aluminum row 9, a second series connection aluminum row 10, a third series connection aluminum row 11 and a fourth series connection aluminum row 12, the four sides of the upper plastic part 2 are high, the creepage distance between the aluminum row device and an upper cover 13 is increased, meanwhile, the creepage distance between the aluminum row device and a top pressing rib 14 is also increased, and the safety performance is improved.

The initial stage of the foam 4 provides pretightening force for the battery cell 1, and the final stage of the battery cell 1 compresses the foam 4 to absorb part of expansion force of the battery cell 1, so that size inconsistency of the battery cell 1 caused by thickness tolerance can be reduced.

The aluminum row 8, the first series aluminum row 9, the second series aluminum row 10, the third series aluminum row 11 and the fourth series aluminum row 12 in the aluminum row device are designed for meeting the serial-parallel connection of the plug boxes, the positioning column 6 and the limiting block 7 of the upper plastic part 2 are used for limiting, the aluminum row device is connected with the battery cell 1 in a laser welding mode, and the purpose of serial-parallel connection of the whole plug boxes is achieved, wherein the aluminum row 8 is plated with nickel, and the reaction is prevented when the aluminum row 8 is connected with the copper row 15 in series.

The upper cover 13 is a sheet metal part, the reinforcing rib of the upper cover 13 is provided with a hole site, the insulating part 16 is also provided with a corresponding hole site, the upper cover 13 and the insulating part 16 can be connected into a whole in advance through plastic rivets, and the insulating performance of the aluminum row device and the upper cover 13 is improved.

The box 17 is arranged below the battery cell 1, the box 17 is a sheet metal welding part with two side plates provided with air inlets 18, and the opening of the air inlets 18 close to the front panel is smaller than the opening far away from the front panel, so that the air inlet quantity can be increased, and the temperature difference in the plug-in box is reduced.

The first end plate 19, the second end plate 20, the top press bar 14 and the supporting piece 21 are arranged above the box body 17, the first end plate 19 and the second end plate 20 are formed by welding and splicing metal plates, the strength of expansion force at the end of a battery cell can be born, the first end plate 19 and the second end plate 20 are fixed on the box body 17 through bolts, pretightening force is generated on the battery cell 1 during assembly, and the cycle life of the battery cell 1 is further prolonged. The top ribs 14 prevent the cell 1 from jumping during transport and allow the first end plate 19 and the second end plate 20 to be tensioned, giving a force in the depth direction of the jack. The support 21 prevents direct pressing on the copper-aluminum bars during assembly of the upper cover 13, avoiding dangerous occurrences.

The front panel of the box 17 is provided with a fan 22, a slave control 23, a connector 24 and a discharge copper bar 15. The slave control 23 and the collection wiring harness together collect the voltage and the temperature of the plug box, and the connectors 24 are distinguished by different colors, so that quick identification during installation is facilitated. The outgoing electrode copper bar 15 is a soft copper bar, and is slightly adjusted in the assembly process.

The working principle of the utility model is as follows: the method comprises the steps of sticking foam 4 on a box 17, assembling a battery cell 1, an upper plastic part 2 and a lower plastic part 3, assembling the foam 4 after the battery cell is assembled to a half position, assembling a second end plate 20, fixing bolts of the second end plate 20 without tightening, assembling the foam 4, assembling the battery cell 1, the upper plastic part 2 and the lower plastic part 3, assembling the foam 4, extruding a first end plate 19, firstly, installing bolts in a pretightening force direction, installing bolts in a vertical direction, installing a top pressing rib 14, installing a fan 21 to collect plates and install wiring harnesses after an aluminum row device is assembled and welded, and finally installing an upper cover 13 and an insulating sheet 16 to obtain an assembly body to complete assembly.

Or the foam 4 is stuck on the box 17, then the lower plastic part 3 and the battery cell 1 are assembled, and the plastic part 2 is assembled after the first end plate 19 is assembled, and the rest are the same.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting it, and although the present utility model has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the utility model can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the utility model.

Claims

1. An air-cooled battery subrack for energy storage, characterized in that: the battery cell comprises a battery cell, the battery cell is connected with an upper plastic part, a lower plastic part and foam, the upper plastic part is connected with an aluminum row device through a positioning column and a limiting block, the aluminum row device comprises an outlet aluminum row, a first serial aluminum row, a second serial aluminum row, a third serial aluminum row and a fourth serial aluminum row, the battery cell is connected with the aluminum row device, a box body is arranged below the battery cell, an upper cover is arranged at the top of the box body, an insulating part is arranged below the upper cover, an air inlet is formed in a side plate of the box body, a first end plate, a second end plate, a top pressing rib and a supporting part are arranged above the box body, and a fan, a slave control connector and an outlet copper row are arranged on a front panel of the box body.

2. An air-cooled battery pack for storing energy as in claim 1, wherein: the lower plastic part is made of insulating flame-retardant materials, and an air duct is arranged on the lower plastic part.

3. An air-cooled battery pack for storing energy as in claim 1, wherein: the upper plastic part is provided with a plurality of positioning columns and a plurality of limiting blocks.

4. An air-cooled battery pack for storing energy as in claim 1, wherein: the battery cell is connected with the aluminum row in a laser welding mode.

5. An air-cooled battery pack for storing energy as in claim 1, wherein: the discharge aluminum bar is made of nickel plating materials.

6. An air-cooled battery pack for storing energy as in claim 1, wherein: the upper cover is a sheet metal part and is provided with a hole site, the insulating part is provided with a corresponding hole site, and the upper cover is connected with the insulating part through a plastic rivet.

7. An air-cooled battery pack for storing energy as in claim 1, wherein: the box is a sheet metal welding part provided with an air inlet, and the opening of the air inlet close to the front panel is smaller than the opening of the air inlet far away from the front panel.

8. An air-cooled battery pack for storing energy as in claim 1, wherein: the first end plate and the second end plate are made of metal plates through splice welding and are fixed on the box body through bolts.

9. An air-cooled battery pack for storing energy as in claim 1, wherein: the connectors are distinguished by two different colors.

10. An air-cooled battery pack for storing energy as in claim 1, wherein: and the electrode outlet copper bar adopts a soft copper bar.