CN218385401U

CN218385401U - Energy storage battery box

Info

Publication number: CN218385401U
Application number: CN202222446374.9U
Authority: CN
Inventors: 肖康; 郑立成; 李炜; 石腾腾
Original assignee: China Lithium Battery Technology Co Ltd
Current assignee: China Lithium Battery Technology Co Ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-01-24
Anticipated expiration: 2032-09-15

Abstract

The utility model discloses an energy storage battery box, this energy storage battery box includes: the box body is internally provided with a single partition plate, and an accommodating cavity is formed between the partition plate and the box body in a surrounding manner; or a plurality of partition plates are arranged in the box body, the accommodating cavity is formed between two adjacent partition plates and between the partition plates and the box body in a surrounding manner, and a battery pack is suitable to be placed in the accommodating cavity; the liquid cooling assembly is arranged in the accommodating cavity; the liquid cooling assembly is suitable for cooling the battery pack. So set up, the liquid cooling subassembly can be directly right the group battery cools off, need not additionally to have seted up the louvre on the shell of group battery, can improve the structural strength of shell. And, the liquid cooling subassembly has stronger cooling performance for the forced air cooling among the prior art and the cooling hole natural cooling, can in time discharge the heat that produces, has guaranteed the normal work of group battery.

Description

Energy storage battery box

Technical Field

The utility model relates to a battery module technical field, concretely relates to energy storage battery box.

Background

At present, the battery module is widely applied to battery cars, electric automobiles and even energy storage power stations. The charge-discharge efficiency of battery module is relevant with the self temperature of battery module under the general condition, and the self temperature of battery module is too high or low can all seriously influence the charge-discharge efficiency of battery module, can shorten the life of battery module even when serious.

In general, when the battery module is in operation, a large amount of heat is generated, so that the temperature of the battery module is high. In the battery module used for the existing battery car, electric car or energy storage power station, most of the arrangement modes of the electric core groups in the battery module are closely connected, so that the generated heat can not be discharged in time, and the normal work of the battery module is seriously influenced. Even though the heat dissipation holes are formed in the shell of a part of battery modules in the prior art and the filter screen is arranged on the heat dissipation holes, the heat dissipation holes and the filter screen can be blocked by dust or other impurities after long-time use, and heat is still difficult to be discharged.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in the problem that the heat that the inside production of battery module that exists among the prior art can not in time be discharged to an energy storage battery box is provided.

In order to achieve the above object, an embodiment of the utility model provides an energy storage battery box, this energy storage battery box includes: the box body is internally provided with a single partition plate, and an accommodating cavity is formed between the partition plate and the box body in a surrounding manner; or a plurality of partition plates are arranged in the box body, the accommodating cavity is formed between two adjacent partition plates and between the partition plates and the box body in a surrounding manner, and a battery pack is suitable to be placed in the accommodating cavity; the liquid cooling assembly is arranged in the accommodating cavity; the liquid cooling assembly is suitable for cooling the battery pack.

Compared with the prior art, the utility model, have following advantage:

1. the embodiment of the utility model provides an energy storage battery box, this energy storage battery box includes: the box body is internally provided with a single partition plate, and an accommodating cavity is formed between the partition plate and the box body in a surrounding manner; or a plurality of partition plates are arranged in the box body, the accommodating cavity is formed between two adjacent partition plates and between the partition plates and the box body in a surrounding manner, and a battery pack is suitable to be placed in the accommodating cavity; the liquid cooling assembly is arranged in the accommodating cavity; the liquid cooling assembly is suitable for cooling the battery pack.

So set up, compare in prior art and seted up the louvre on the shell of part group battery and set up the filter screen on the louvre, the utility model provides a liquid cooling subassembly can be directly right the group battery cools off, need not to set up the louvre on the shell of group battery in addition, can improve the structural strength of shell. And, the liquid cooling subassembly has stronger cooling performance for the forced air cooling among the prior art and the cooling hole natural cooling, can in time discharge the heat that produces, has guaranteed the normal work of group battery.

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 a worker of ordinary skill in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is an exploded view of an energy storage battery box according to an embodiment of the present invention.

Reference numerals:

1. a partition plate; 2. a base plate; 3. a side plate; 4. and (5) reinforcing ribs.

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 ordinary workers in the field 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 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; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present invention can be understood in specific cases for ordinary workers in the art.

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

At present, the battery module is widely applied to battery cars, electric automobiles and even energy storage power stations. The charge-discharge efficiency of battery module is relevant with the self temperature of battery module under the general condition, and the self temperature of battery module is too high or low can all seriously influence the charge-discharge efficiency of battery module, can shorten the life of battery module even when serious. In general, when the battery module is in operation, a large amount of heat is generated, so that the temperature of the battery module is high. In the battery module used for the existing battery car, electric automobile or energy storage power station, most of the arrangement modes of the electric core groups in the battery module are closely connected, so that the generated heat can not be discharged in time, and the normal work of the battery module is seriously influenced. Even if the heat dissipation holes are formed in the shell of a part of the battery module and the filter screen is arranged on the heat dissipation holes in the prior art, the heat dissipation holes and the filter screen can be plugged by dust or other impurities after long-time use, and heat is still difficult to discharge.

Example 1

As shown in fig. 1, the embodiment of the utility model provides an energy storage battery box, this energy storage battery box includes box and liquid cooling subassembly, is provided with division board 1 in the box, and division board 1 is used for separating adjacent group battery of being separated by.

Specifically, in the embodiment of the present invention, the inside of the box body can be provided with a single partition board 1, and can also be provided with a plurality of partition boards 1. When a single partition plate 1 is arranged in the box body, the single partition plate 1 divides the box body into two parts, so that an accommodating cavity is formed between the partition plate 1 and the box body in a surrounding manner. The accommodating cavity is suitable for accommodating a battery pack. When the interior of the box body is provided with a plurality of partition plates 1, the interior of the box body is divided into a plurality of accommodating cavities by the plurality of partition plates 1, that is, the accommodating cavities can be enclosed between two adjacent partition plates 1 and between the partition plates 1 and the box body. Further, the liquid cooling subassembly can directly set up hold in the chamber, the liquid cooling subassembly is suitable for right the group battery cools off.

Of course, the liquid cooling subassembly has multiple form, is in the embodiment of the utility model provides a no longer carry out the illustration to the liquid cooling subassembly, suitable liquid cooling subassembly can be selected according to actual conditions to technical personnel in the field, can play the same technological effect can.

Further, in an optional embodiment of the present invention, the liquid cooling assembly includes a liquid cooling plate, and the liquid cooling plate is laid on the bottom of the accommodating chamber. Of course, the liquid cooling assembly further comprises a power device for performing circulating heat exchange on the liquid cooling medium in the liquid cooling plate.

Because the group battery all piles up the formation by a plurality of electric cores usually, the embodiment of the utility model provides a through laying the liquid cold plate in hold the bottom in chamber, the liquid cold plate can contact all electric cores simultaneously to can cool off the heat dissipation to all electric cores, improved cooling efficiency.

Further, in an optional embodiment of the present invention, the bottom plate 2 of the box body is formed by the liquid cooling plate. The embodiment of the utility model provides a be the liquid cooling board through 2 settings of bottom plate with the box, can reduce the consumptive material of box, can save certain manufacturing cost. Simultaneously, be the liquid cooling board with 2 settings of bottom plate of box and can make the liquid cooling board can carry out natural cooling through external environment to a certain extent, can reduce the operating pressure of liquid cooling subassembly, improve the holistic work efficiency of liquid cooling subassembly.

Further, in an optional embodiment of the present invention, the separation plate 1 is connected to the liquid cooling plate, and the separation plate 1 is made of a heat conductive material. The thermally conductive material may be a metal. Specifically, the division plate 1 and the liquid cooling plate can be connected through heat conducting glue. Of course, the present embodiment is also only an example of the connection method, but the present invention is not limited to this, and the same technical effects can be obtained. The embodiment of the utility model provides a through inciting somebody to action division board 1 with the liquid cooling board is connected, is carrying out refrigerated in-process to battery module through the liquid cooling subassembly, and partly cold volume can pass through 1 transmission of division board to battery module's side, increases the cooling range to battery module, guarantees that battery module's heat can be derived to the liquid cooling board through division board 1 fast, further improves the radiating efficiency. Meanwhile, by making the partition plate 1 of a heat conductive material, the heat transfer speed can be increased compared to general materials.

Of course, a person skilled in the art may change the type of the heat conductive material according to actual situations, and the embodiment merely illustrates the type of the heat conductive material, but the invention is not limited thereto, and the same technical effect can be achieved.

Further, in an optional embodiment of the present invention, as shown in fig. 1, the partition board 1 is disposed along a stacking direction of the electric cells in the battery pack. That is, the cells in the battery packs are generally stacked in a horizontal direction, and the partition plate 1 extends in the horizontal direction in order to partition the cells in two adjacent battery packs. The partition plate 1 is placed standing in the vertical direction, and the height of the partition plate 1 in the vertical direction is smaller than the height of the battery pack. Further, the height of the partition plate 1 in the vertical direction is 0.2 to 0.5 times the height of the battery pack.

The embodiment of the utility model provides a set up through the height with division board 1 in vertical direction to 0.2 times to 0.5 times of group battery height can avoid damaging easily because of highly too high when improving division board 1 structural strength. Because the heat conduction material generally is the metal material, so set up and can prevent that division board 1 from being punctured to avoid appearing the phenomenon of thermal runaway. It is also possible to prevent the heat dissipation or heat uniformity from being lost due to the too low height of the partition plate 1.

Further, in an optional embodiment of the present invention, the box body is surrounded by a plurality of side plates 3 along the stacking direction of the battery pack. The side plate 3 is provided with a notch, and the two ends of the partition plate 1 are provided with end parts suitable for being embedded into the notch. The end part and the notch are in interference fit. Of course, the partition board 1 can be directly bonded with the side board 3 and the bottom board 2 through bonding glue, and the overall stability can be further enhanced.

The embodiment of the utility model provides a through set up the breach on curb plate 3 to make the tip at 1 both ends of division board directly imbed in the breach, when the compression group battery, can avoid division board 1's tip to expose on compression route, thereby can avoid division board 1 to interfere compression process.

Further, in an optional embodiment of the present invention, the side plate 3 is made of a heat conductive material. The embodiment of the utility model provides a through making curb plate 3 by the heat conduction material, can in time absorb battery module's heat when battery module produces heat, partly heat transfer cools off to the liquid cooling module, and another part heat can directly be transmitted to the external world and carry out the nature heat dissipation. The heat dissipation efficiency is improved, and meanwhile, the power consumption of the liquid cooling assembly can be reduced.

Further, in an optional embodiment of the present invention, a cavity is disposed in the side plate 3, and a plurality of reinforcing ribs 4 are disposed in the cavity. The embodiment of the utility model provides a through set up many strengthening ribs 4 in the cavity of curb plate 3, can improve the structural strength of curb plate 3, improve battery module overall structure's stability. Of course, a liquid cooling medium may be injected into the cavity of the side plate 3, or a heat exchange medium may be filled into the cavity, so that the heat dissipation effect may be improved.

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 upon reference to the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. An energy storage battery box, comprising:

the box body is internally provided with a single partition plate (1), and an accommodating cavity is formed between the partition plate (1) and the box body in a surrounding manner; or a plurality of partition plates (1) are arranged in the box body, the accommodating cavities are formed between two adjacent partition plates (1) and between the partition plates (1) and the box body in a surrounding manner, and battery packs are placed in the accommodating cavities;

the liquid cooling assembly is arranged in the accommodating cavity; the liquid cooling assembly is suitable for cooling the battery pack.

2. The energy storage battery box of claim 1, wherein the liquid cooling assembly comprises a liquid cooling plate, and the liquid cooling plate is laid on the bottom of the accommodating cavity.

3. Energy storage battery box according to claim 2, characterized in that the bottom plate (2) of the box is formed by the liquid-cooled plate.

4. Energy storage battery box according to claim 2 or 3, characterized in that the separating plate (1) is connected to the liquid cooling plate, the separating plate (1) being made of a heat conducting material.

5. Energy storage battery box according to claim 4, characterized in that the separator plates (1) are arranged in the stacking direction of the cells in the battery pack.

6. Energy storage battery box according to claim 5, characterized in that the height of the partition plate (1) in the vertical direction is smaller than the height of the battery pack.

7. Energy storage battery box according to claim 6, characterized in that the height of the partition plate (1) in the vertical direction is 0.2 to 0.5 times the height of the battery pack.

8. An energy storage battery box according to any one of claims 5 to 7, characterized in that the box body is surrounded by a plurality of side plates (3) in the stacking direction of the battery packs; the side plate (3) is provided with a notch, and the two ends of the partition plate (1) are provided with end parts suitable for being embedded into the notch; the end part and the notch are in interference fit.

9. Energy storage battery box according to claim 8, characterized in that the side plates (3) are made of a heat conducting material.

10. Energy storage battery box according to claim 9, characterized in that a cavity is arranged in the side plate (3), and a plurality of reinforcing ribs (4) are arranged in the cavity.