CN211350905U - Energy storage battery plug-in box and energy storage system thereof - Google Patents
Energy storage battery plug-in box and energy storage system thereof Download PDFInfo
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- CN211350905U CN211350905U CN202020210574.2U CN202020210574U CN211350905U CN 211350905 U CN211350905 U CN 211350905U CN 202020210574 U CN202020210574 U CN 202020210574U CN 211350905 U CN211350905 U CN 211350905U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to a lithium cell field of making discloses an energy storage battery subrack and energy storage system thereof, and this energy storage battery subrack includes the base and fixes the multirow electric core group on the base, and every row of electric core group includes a plurality of electric cores, is equipped with the entry and the export that are used for radiating cooling air in the energy storage battery subrack, and the area of the cooling surface of the electric core that is close to the entry is less than the area of the cooling surface of the electric core that is close to the export. The utility model discloses a change the area that sets up the heat dissipation surface at the electric core of different positions department, increase the temperature average that sets up between the electric core of different positions, improve life.
Description
Technical Field
The utility model relates to a lithium cell makes technical field, specifically relates to energy storage battery subrack and energy storage system thereof.
Background
The energy storage system is a new energy device for storing a large number of energy storage lithium batteries in a container or a cabinet, a large-scale support is arranged in the container or the cabinet, an energy storage battery plug box is fixed on the support, and a plurality of battery core groups are fixed in the energy storage battery plug box. Because the energy storage lithium cell can produce a large amount of heats in the course of the work, consequently need input cooling air for energy storage battery subrack heat dissipation through equipment such as fan or air conditioner. The difference in temperature of energy storage battery subrack can cause very big influence to entire system's difference in temperature, and in current energy storage battery subrack, the distance between each electric core group is the same, that is to say, the interval that forms between two electric core groups that adjacent set up and the wind channel that constitutes all the same. Cooling air input by a fan or an air conditioner enters the energy storage battery plug box from the inlet, flows through the inside of the energy storage battery plug box through the air duct and is subjected to sufficient heat exchange with the electric core group, so that the purpose of heat dissipation is achieved. And the equidistant structure of current energy storage battery subrack can make the temperature of front and back row electricity core differ great, and a large amount of cooling air is blockked by the electric core group of front bank, leads to the local gathering of cooling air, and local overheat can't ensure that every electric core heat dissipation is even, makes the electric core temperature rise in the energy storage battery subrack inhomogeneous, and electric core uniformity worsens, and electric core and system cycle life will reduce.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the equidistant poor problem of radiating effect that sets up of electric core that prior art exists, providing energy storage battery subrack and energy storage system, through the area that changes the heat dissipation surface who sets up the electric core in different positions department, increase the temperature average nature of setting between the electric core of different positions, improve life.
In order to achieve the above object, an aspect of the present invention provides an energy storage battery box, including a base and a plurality of rows of electric core groups, every row on the base the electric core groups include a plurality of electric cores, the energy storage battery box is provided with an inlet and an outlet for the cooling air of heat dissipation, which is close to the inlet the area of the heat dissipation surface of the electric core is smaller than and close to the outlet the area of the heat dissipation surface of the electric core.
Preferably, the area of the heat dissipation surface of the battery cell gradually increases along the direction from the inlet to the outlet.
Preferably, the electric cores in the electric core group close to the outlet are arranged at equal intervals, and the outer wall of each electric core is the heat dissipation surface which is completely contacted with the cooling air.
Preferably, the battery core group close to the inlet comprises at least two battery cores with opposite side surfaces attached to each other to form a battery core unit, and the opposite side surfaces are attachment surfaces which are not in contact with the cooling air.
Preferably, the number of the cells forming the cell unit is 2 to 4.
Preferably, the cell groups containing the cell units are at least two rows.
Preferably, the battery cell units are arranged at equal intervals.
Preferably, the number of the cell groups is three, the cell groups are sequentially arranged in a first row, a second row and a third row from the inlet to the outlet, and the side surfaces of every adjacent 4 cells in the first row are relatively attached, the side surfaces of every adjacent 2 cells in the second row are relatively attached, and the cells in the third row are arranged at equal intervals.
The utility model discloses the second aspect provides an energy storage system, be in including box and setting battery subrack support in the box, be fixed with on the battery subrack support as above energy storage battery subrack.
Preferably, the energy storage battery plug-in boxes are arranged in a plurality of numbers and are fixed on the battery plug-in box supports at equal intervals.
Through above-mentioned technical scheme, through the area that changes the heat dissipation surface who sets up the electric core in different positions department, increase the temperature averaging who sets up between the electric core in different positions, improve life.
Drawings
Fig. 1 is a schematic structural view of an energy storage battery box according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a second energy storage battery plug-in box according to an embodiment of the present invention.
Description of the reference numerals
001 first row 002 second row 003 third row 100 base 110 inlet 120 outlet 200 electric core group 210 electric core 211 binding face
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
In the present invention, unless otherwise specified, the use of directional terms such as "upper, lower, left, and right" generally means upper, lower, left, and right as illustrated with reference to the accompanying drawings; "inner and outer" generally refer to the inner and outer relative to the profile of the components themselves; "distal and proximal" generally refer to distance relative to the contour of the components themselves.
Example one
As shown in fig. 1, the utility model provides an energy storage battery subrack, including base 100 and fixing multirow electric core group 200 on the base 100, every row electric core group 200 includes a plurality of electric cores 210. An inlet 110 and an outlet 120 for cooling air for heat dissipation are arranged in the energy storage battery plug box, and the area of the heat dissipation surface of the battery cell 210 close to the inlet 110 is smaller than the area of the heat dissipation surface of the battery cell 210 close to the outlet 120. That is to say, the utility model discloses a change the area that sets up the heat radiating surface at the electric core of different positions department, increase the temperature average that sets up between the electric core of different positions, improve life.
Specifically, in the embodiment shown in fig. 1, in an energy storage battery box, the number of the cell groups 200 is three, and the first row 001, the second row 002 and the third row 003 are sequentially arranged from the inlet 110 to the outlet 120, the side surfaces of every adjacent 4 cells 210 in the first row 001 are oppositely attached to form a cell unit, the side surfaces of every adjacent 2 cells 210 in the second row 002 are oppositely attached to form a cell unit, and the cells 210 in the third row 003 are equidistantly spaced. That is, in the present embodiment, the cells 210 in the cell group 200 in the third row 003 close to the outlet 120 are arranged at equal intervals, and the outer wall of each cell 210 is the heat dissipation surface which is in full contact with the cooling wind. The first row 001 and the second row 002 close to the inlet 110 of the battery pack 200 respectively include a cell unit formed by 4 cells 210 and a cell unit formed by 2 cells 210, which are attached to opposite sides of the battery pack, where the opposite sides are attachment surfaces 211 that are not in contact with the cooling air.
As shown in fig. 1, when the cooling air flows into the energy storage battery box from the inlet 110, the cooling air passes through the two rows of battery core groups 200, and at this time, the cooling air just flows in from the inlet 110, so the temperature is low, but because the first row 001 includes the battery cell units formed by attaching the side surfaces of the 4 battery cells 210, in the 4 battery cells 210, only the outer side surfaces of the two battery cells 210 at the outermost sides are main heat dissipation surfaces, and the cooling air can contact with the outer side surfaces to perform a heat dissipation function. Similarly, since the second row 002 includes the cell units formed by attaching the side surfaces of the 2 cells 210, in the 2 cells 210, only the outer side surface of the cell 210 is a main heat dissipation surface, and can contact with cooling wind to dissipate heat. And the cell units in the first row 001 and the second row 002 are arranged at equal intervals. Air ducts are formed in gaps between the cell units in the first row 001 and the second row 002 and between the cells in the third row 003, and cooling air flows into the energy storage battery plug box from the inlet 110, flows through all spaces in the energy storage battery plug box through the air ducts, and then flows out from the outlet 120. In the process of flowing through the cooling wind, the cooling wind sufficiently contacts with the heat dissipation surface of the battery cell 210 and completes the heat dissipation process. Compared with the structure in which all the cells 210 in the third row 003 are arranged at equal intervals, the heat dissipation surfaces of the cells 210 in the first row 001 and the second row 002 are obviously smaller, and thus the contact area with the cooling air is smaller, while the temperature of the cooling air flowing through the cells 210 in the third row 003 is increased compared with the temperature just flowing from the inlet 110 by heat exchange with the cells 210 in the first row 001 and the second row 002, but since the heat dissipation area of the cells 210 in the third row 003 is increased by a large amount compared with the cells 210 in the first row 001 and the second row 002, the contact area with the cooling air is also increased, so that the influence of the increase in the temperature of the cooling air itself can be reduced by the heat dissipation area of the cells, and the temperature difference between the cells 210 in the three rows of the cell group 200 can be minimized to the greatest extent, with electric core 210 among each row of current electric core group 200 being the equidistance interval and setting up the radiating mode who forms the identical wind channel of structure and compare, the utility model discloses obviously increased the average of temperature between the electric core, further made subrack life increase.
Example two
As shown in fig. 2, is a schematic structural diagram of a second embodiment of the present invention. As shown in fig. 2 in combination with fig. 1, this embodiment is a modified structure of the first embodiment. Specifically, in the present embodiment, the cell pack 200 including the cell units is also provided with two rows, i.e., a first row 001 and a second row 002. However, the difference from the first embodiment is that the cell units in the first row 001 and the second row 002 are formed by attaching the side surfaces of 2 cells 210. As shown in fig. 2, when the cooling air flows into the energy storage battery box through the inlet 110, the cooling air first passes through the first row 001 and the second row 002 of the front two rows of electric core groups 200, and at this time, the cooling air just flows in from the inlet 110, so the temperature is low, but because the first row 001 and the second row 002 both include 2 electric core units formed by attaching the side surfaces of the electric cores 210, in the 2 electric cores 210, only the outer side surface of the electric core 210 is a main heat dissipation surface, and the cooling air can contact with the cooling air to perform a heat dissipation function. And the cell units in the first row 001 and the second row 002 are arranged at equal intervals. Similar to the first embodiment, air ducts are formed in gaps between the cell units in the first row 001 and the second row 002 and between the cells in the third row 003, and after the cooling air flows into the energy storage battery plug box from the inlet 110, the cooling air flows through all the spaces inside the energy storage battery plug box through the air ducts and then flows out through the outlet 120. In the process of flowing through the cooling wind, the cooling wind sufficiently contacts with the heat dissipation surface of the battery cell 210 and completes the heat dissipation process. Compared with the first row 001 and the second row 002, the heat dissipation area of the cells 210 in the third row 003 is greatly increased, so that the contact area with the cooling air is also increased, and thus the influence caused by the temperature increase of the cooling air can be reduced by the heat dissipation area of the cells, so that the temperature difference among the cells 210 in the three rows of the cell pack 200 is minimized to the greatest extent, and the temperatures among the cells at all positions can be relatively average.
The utility model discloses the second aspect provides an energy storage system, be in including box and setting battery subrack support in the box, be fixed with on the battery subrack support as above energy storage battery subrack. The energy storage battery plug-in boxes are arranged in a plurality of numbers and are fixed on the battery plug-in box support at equal intervals. What combine above-mentioned two embodiments can know, the utility model discloses in essence through the area that changes the heat dissipation surface who sets up the electric core in different positions department, increase the temperature averaging of setting between the electric core in different positions, improve life.
The above-described structure is not limited except for the structures shown in the above-described two embodiments. In practical application, other structural arrangements may be adopted as required, for example: a structure in which the area of the heat dissipation surface of the battery cell gradually increases in the direction from the inlet to the outlet may also be employed. Or, the side surfaces of the electric cores in corresponding number are selected to be attached to form the electric core units to adjust the heat dissipation area of the electric cores according to the odd number or the even number of the electric cores in each row of the electric core group. In addition, the number of the electric core groups arranged in each energy storage battery box is not necessarily three rows, and may also include more rows, the number of the electric cores forming the electric core units in each row may be different, or the number of the electric cores forming the electric core units in each two rows is the same, and so on. No matter what kind of structure is adopted, all be the messenger be close to the entry the cooling surface's of electricity core area is less than and is close to the export the cooling surface's of electricity core area can all reach the technological effect that two above-mentioned embodiments can reach equally, belong to within the protection scope of the utility model.
It should be noted that the inlet 110 and the outlet 120 of the cooling air shown in fig. 1 and 2 are schematic illustrations of an arrangement position, which are only used for showing that the inlet and the outlet of the cooling air are arranged at specific positions of the energy storage battery plug box, and do not show the sizes of the inlet and the outlet and the size proportional relationship between the inlet and the outlet and the energy storage battery plug box. In practical application, the size of the inlet and the outlet can be as shown in fig. 1 and fig. 2, or slightly smaller or larger than the size shown in fig. 1 and fig. 2, or even can be set within the whole side length range of the energy storage battery plug box, and the actual size of the inlet and the outlet can be determined according to actual needs.
In the energy storage system, a lithium battery in the container releases a large amount of heat in the charging and discharging process. And cooling air input by a fan or an air conditioner is transmitted into the electric core group through an air duct. The utility model discloses a change the arrangement of electric core in the energy storage battery subrack and then changed the wind channel structure, the energy storage battery subrack has adopted two liang of hugging closely at least near the front-row electric core of the entry direction of cooling air, make front-row electric core and cooling air area of contact reduce, make front-row electric core heat dissipation capacity reduce, make its temperature rise, and the interval between the back-row electric core of the exit direction that is close to the cooling air does not do the change, but because the cooling air is lower than the equal clearance through front-row electric core back temperature ratio, make back-row electric core temperature descend, finally make from fan or air conditioner input cold volume send each electric core of every battery subrack on with equal quantity, guaranteed that electric core can obtain the same cold volume, finally make electric core temperature can obtain better homogeneity, can accomplish to set up the difference in temperature between the electric core of different positions and reduce. Through the simulation analysis method, the difference in temperature between each electric core of assay is less than 2 ℃, is mostly the same with current energy storage battery subrack electric core interval in the subrack, leads to wind to be obstructed behind the front row electric core, and it is less to flow back row electric core amount of wind, makes the structure that back row electric core temperature rises compare, the utility model discloses make the battery can obtain better temperature homogeneity, create the temperature condition for energy storage battery obtains the high cycle number, compare with like product and have great advantage.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The utility model discloses an in the technical conception scope, can be right the utility model discloses a technical scheme carries out multiple simple variant, for example, can be according to the quantity of electric core in every row of electric core group for odd number or even number, selects the electric core side laminating formation electric core unit with corresponding number to adjust the heat radiating area of electric core. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.
Claims (10)
1. The utility model provides an energy storage battery subrack, includes base (100) and fixes multirow electric core group (200) on base (100), every row electric core group (200) includes a plurality of electric cores (210), be equipped with entry (110) and export (120) that are used for radiating cooling air in the energy storage battery subrack, its characterized in that, be close to entry (110) the heat dissipation surface's of electric core area is less than being close to export (120) the heat dissipation surface's of electric core area.
2. The energy storage battery box of claim 1, characterized in that the area of the heat dissipation surface of the cells (210) increases gradually in the direction from the inlet (110) to the outlet (120).
3. The energy storage battery plug box of claim 1, characterized in that the cells (210) in the cell group (200) close to the outlet (120) are arranged at equal intervals, and the outer wall of each cell (210) is the heat dissipation surface which is in full contact with the cooling air.
4. The energy storage battery box of claim 1, characterized in that the cells (210) in the cell pack (200) near the inlet (110) comprise at least two opposite sides, wherein the opposite sides are abutted surfaces (211) which are not in contact with the cooling air, so as to form a cell unit.
5. The energy storage battery box of claim 4, characterized in that the number of cells (210) forming the cell unit is 2-4.
6. The energy storage battery plug box of claim 4, characterized in that the battery core groups (200) containing the battery cell units are at least two rows.
7. The energy storage battery plug box of claim 4, wherein the cell units are equidistantly spaced.
8. The energy storage battery plug box of claim 1, wherein the number of the battery cell groups (200) is three, and the battery cells are sequentially arranged in a first row (001), a second row (002) and a third row (003) from the inlet (110) to the outlet (120), wherein the side surfaces of every adjacent 4 battery cells (210) in the first row (001) are oppositely attached, the side surfaces of every adjacent 2 battery cells (210) in the second row (002) are oppositely attached, and the battery cells in the third row (003) are equidistantly spaced.
9. An energy storage system, comprising a box body and a battery plug box support arranged in the box body, wherein the battery plug box support is fixed with an energy storage battery plug box according to any one of claims 1-8.
10. The energy storage system of claim 9, wherein the energy storage battery box is provided in a plurality of numbers, and the energy storage battery box is fixed on the battery box bracket at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020210574.2U CN211350905U (en) | 2020-02-25 | 2020-02-25 | Energy storage battery plug-in box and energy storage system thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020210574.2U CN211350905U (en) | 2020-02-25 | 2020-02-25 | Energy storage battery plug-in box and energy storage system thereof |
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| CN211350905U true CN211350905U (en) | 2020-08-25 |
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| CN202020210574.2U Active CN211350905U (en) | 2020-02-25 | 2020-02-25 | Energy storage battery plug-in box and energy storage system thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112086711A (en) * | 2020-09-11 | 2020-12-15 | 湖北亿纬动力有限公司 | Battery box |
| CN113364027A (en) * | 2021-05-17 | 2021-09-07 | 华为技术有限公司 | Energy storage module, energy storage device and power generation system |
| CN116565376A (en) * | 2023-05-04 | 2023-08-08 | 上海果下科技有限公司 | Hot-blast battery box heat abstractor of reposition of redundant personnel |
-
2020
- 2020-02-25 CN CN202020210574.2U patent/CN211350905U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112086711A (en) * | 2020-09-11 | 2020-12-15 | 湖北亿纬动力有限公司 | Battery box |
| CN112086711B (en) * | 2020-09-11 | 2022-08-12 | 湖北亿纬动力有限公司 | Battery box |
| CN113364027A (en) * | 2021-05-17 | 2021-09-07 | 华为技术有限公司 | Energy storage module, energy storage device and power generation system |
| WO2022242600A1 (en) * | 2021-05-17 | 2022-11-24 | 华为数字能源技术有限公司 | Energy storage module, energy storage apparatus, and power generation system |
| CN113364027B (en) * | 2021-05-17 | 2023-10-10 | 华为数字能源技术有限公司 | Energy storage module, energy storage device and power generation system |
| CN116565376A (en) * | 2023-05-04 | 2023-08-08 | 上海果下科技有限公司 | Hot-blast battery box heat abstractor of reposition of redundant personnel |
| CN116565376B (en) * | 2023-05-04 | 2024-02-20 | 江苏果下科技有限公司 | Hot-blast battery box heat abstractor of reposition of redundant personnel |
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