CN215377500U

CN215377500U - Heat dissipation energy storage battery box and energy storage battery system

Info

Publication number: CN215377500U
Application number: CN202120171099.7U
Authority: CN
Inventors: 翁欣狄; 钱波; 陆近之
Original assignee: Ningbo Cnit Future Energy Technology Co ltd
Current assignee: Ningbo Cnit Future Energy Technology Co ltd
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2021-12-31
Anticipated expiration: 2031-01-20

Abstract

The utility model provides a heat dissipation energy storage battery box and an energy storage battery system. The heat dissipation energy storage battery case includes the box and sets up a plurality of battery monomer in the box, and the box sets up inlet port and venthole, the inside wind channel that sets up of box, inlet port, wind channel and venthole form the gas circulation passageway, and this gas circulation passageway of gaseous accessible circulates between the box is inside and the box outside to take away the inside heat of box, realize the energy storage battery case from inside to outside radiating mode, it is high to have the radiating efficiency, safety and stability's advantage.

Description

Heat dissipation energy storage battery box and energy storage battery system

Technical Field

The utility model belongs to the technical field of battery energy storage, and particularly relates to a heat dissipation energy storage battery box and an energy storage battery system.

Background

With the rapid development of science and technology, the living standard of people is gradually improved, the energy consumption is greatly improved, and under the background of the times, household energy storage and large-scale energy storage technologies are gradually started. Energy storage technology is technology that stores energy for use when needed by a device or physical medium.

An energy storage battery box is an important energy storage device. The energy storage battery box is a battery pack which is also called a battery pack and consists of a plurality of battery monomers, a box body, relevant mounting structural members and the like. A plurality of battery boxes are integrated on the rack in series and/or in parallel to form a battery cluster, and a plurality of battery clusters are integrated in the container to form an energy storage battery system.

In practical application, the energy storage battery system is large in energy supply and large in current, so that the temperature of the system is increased, and therefore the energy storage battery system is generally provided with a heat dissipation system such as an air conditioner and an air outlet in a container to perform overall heat dissipation. However, the energy storage battery box is often designed in a sealed manner, and the single batteries in the battery box are usually stacked, so that the battery box has concentrated heat and cannot rapidly dissipate heat in practical application, and the battery box can only be naturally cooled after the whole temperature of the battery system is reduced. The heat dissipation mode of the battery box influences the service life of the battery cell if the battery cell is light, and causes dangerous situations such as thermal runaway and further fire disasters if the battery cell is heavy.

SUMMERY OF THE UTILITY MODEL

In view of the technical current situation, the utility model provides a heat dissipation energy storage battery box which has a good heat dissipation effect.

The technical scheme provided by the utility model is as follows: the utility model provides an energy storage battery box, includes box and sets up a plurality of battery monomer in the box, characterized by: the box sets up inlet port and venthole, and the box is inside to be set up the wind channel, and inlet port, wind channel and venthole form the gas circulation passageway, and the gas outside the box can circulate in the box through this gas circulation passageway.

Preferably, the battery cells are spaced apart from each other to prevent heat concentration due to accumulation of the battery cells, and the battery cells serve as the air duct to form a gas flow path. Preferably, a gap is formed between adjacent single batteries, so that a gap exists between each single battery and the rest of the single batteries, and heat concentration is further avoided. More preferably, the battery cells are regularly arranged.

Preferably, the box body is composed of a plurality of surfaces, wherein the surface A is opposite to the surface B, the air inlet hole is formed in the surface A, and the air outlet hole is formed in the surface B. More preferably, one end of each of the battery cells faces the a-plane, the other end faces the B-plane, and the space is provided between the battery cells.

In order to further promote the heat inside the box to scatter and disappear, preferably set up the fan in the box inside, the drive gets into the inside gas of box circulation with higher speed under the effect of fan to take away the inside heat of box fast, promptly, the fan is rotatory, drives the gas flow, and the drive gets into the inside gas circulation with higher speed of box, thereby takes away the inside heat of box fast. As a further preference, the fan is arranged between the air inlet hole and the air outlet hole.

The utility model also provides an energy storage battery system, which comprises a container, a plurality of battery clusters arranged in the container body and a heat dissipation device; each battery cluster comprises a plurality of battery boxes; the heat dissipation device is used for exchanging heat between the energy storage battery system and the outside; the method is characterized in that: the battery box is the heat dissipation energy storage battery box described in this embodiment.

As an implementation mode, the heat dissipation device comprises an air conditioner and an air duct which are arranged inside the container, air is adjusted to circulate in the air duct when the air conditioner is opened, enters the container body through an air inlet hole in the energy storage battery box and is exhausted from an air outlet hole after being circulated through the air duct in the battery box, and therefore heat inside the container body can be taken away.

According to the utility model, the energy storage battery box is provided with the air inlet hole and the air outlet hole, the air channel is arranged in the box body, the air inlet hole, the air channel and the air outlet hole form the gas circulation channel, and gas can circulate in the box body and outside the box body through the gas circulation channel, so that heat in the box body can be taken away, the heat dissipation mode of the energy storage battery box from inside to outside is realized, and compared with the natural cooling adopted at present, the energy storage battery box has the following beneficial effects:

(1) the heat accumulated in the battery box can be quickly dissipated, the heat dissipation efficiency is high, and the service life of the battery core is effectively protected;

(2) the structure is simple, the installation is easy, and the original battery structure layout is not influenced;

(3) use the energy storage battery box of this utility message in the energy storage battery system, can improve battery system's radiating efficiency, be favorable to battery system's temperature safety to improve battery system's operating stability.

Drawings

Fig. 1 is a schematic view of the internal structure of an energy storage battery box in embodiment 1.

Fig. 2 is a heat dissipation wind diagram of the energy storage battery box shown in fig. 1.

Fig. 3 is a schematic structural diagram of an energy storage battery system in embodiment 1.

Fig. 4 is a schematic diagram of the structure of a single cell cluster 8 in fig. 3.

The reference numerals in fig. 1-4 are: the device comprises a box body 1, battery monomers 2, an air inlet 3, an air outlet 4, an air duct 5, a fan 6, a container 7, a battery cluster 8, a battery box 9, an air conditioner 10, an air duct 11, a fire-fighting cabinet 12, a confluence cabinet 13, a power distribution cabinet 14, a PCS15 and a high-voltage box 16.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, which are not intended to limit the utility model to the details shown.

Example 1:

in this embodiment, as shown in fig. 1, the energy storage battery box includes a box body 1 and a plurality of battery cells 2, and the battery cells 2 are disposed inside the box body (not all the battery cells are shown in fig. 1, only 2 of the battery cells are shown, and are denoted by 2#1 and 2# 2), and are connected together in series and/or in parallel.

The box body 1 is composed of a bottom surface, a top surface (not shown in fig. 1) and four side surfaces, wherein the side surface A is opposite to the side surface B, the side surface A is provided with a plurality of air inlet holes 3, and the side surface B is provided with a plurality of air outlet holes 4. The single batteries 2 are regularly arranged in the box body, one end of each single battery faces to the surface A, the other end of each single battery faces to the surface B, intervals are arranged between every two adjacent single batteries, and the intervals form an air duct 5. As shown in fig. 2, the air outside the box body can enter the box body 1 through the air inlet 3 and is exhausted from the air outlet 4 after circulating through the air duct, so that the heat inside the box body can be taken away.

Example 2:

in this embodiment, the structure of the energy storage battery box is basically the same as that of the energy storage battery box in embodiment 1, except that a fan 6 is arranged inside the box body 1, and the fan 6 is arranged between the air inlet hole 3 and the air outlet hole 4. The gas outside the box can enter the box 1 through the air inlet 3, under the action of the fan 6, namely, the fan rotationally drives the gas to circulate in the box 1 at an accelerated speed, and the gas is discharged from the air outlet 4 after circulating through the air channel, so that the heat inside the box is taken away quickly.

Example 3:

as shown in fig. 3, the energy storage battery system includes a container 7, a plurality of battery clusters 8, a fire-fighting cabinet 12, a combiner cabinet 13, a power distribution cabinet 14, and two PCS15 (denoted by 15#1 and 15#2 in fig. 3).

As shown in fig. 4, each battery cluster 8 includes a plurality of battery boxes 9, and each battery box 9 is the energy storage battery box in embodiment 2. In this embodiment, each battery cluster 8 includes 15 energy storage battery boxes 9 (indicated by 9#1, 9#2, 9#3 … … 9#15 in fig. 4), and also includes a high-voltage box 16.

A heat sink is provided in the container 7, and the heat sink includes an air inlet and an air outlet in air communication with the outside of the container, two air conditioners 10 (indicated by 10#1 and 10#2 in the drawing), and two air ducts 11 (indicated by 11#1 and 11#2 in the drawing) are formed in the container. The air conditioner is started, air conditioner air in the container circulates in the air duct 11, enters the box body through the air inlet hole in the energy storage battery box, and is discharged from the air outlet hole after circulating through the air duct in the battery box, and therefore heat in the box body can be taken away.

The embodiments described above are intended to illustrate the technical solutions of the present invention in detail, and it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modification, supplement or similar substitution made within the scope of the principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a heat dissipation energy storage battery box, includes box and a plurality of battery monomer of setting in the box, characterized by: the box body is provided with an air inlet hole and an air outlet hole; an air duct is arranged in the box body; the air inlet hole, the air channel and the air outlet hole form an air circulation channel, and air can circulate between the interior of the box body and the exterior of the box body through the air circulation channel.

2. The heat dissipating energy storage battery box of claim 1, wherein: and intervals are arranged among the battery monomers.

3. The heat dissipating energy storage battery box of claim 2, wherein: and a space is arranged between the adjacent battery cells.

4. The heat dissipating energy storage battery box of claim 1, wherein: the battery cells are regularly arranged.

5. The heat dissipating energy storage battery box of claim 1, wherein: the box body is composed of a plurality of surfaces, wherein the surface A is opposite to the surface B, the air inlet hole is formed in the surface A, and the air outlet hole is formed in the surface B.

6. The heat dissipating energy storage battery box of claim 5, wherein: one end of each battery cell faces the surface A, and the other end faces the surface B.

7. The heat dissipation energy storage battery box of claim 6, characterized by: and intervals are arranged among the battery monomers.

8. The heat dissipating energy storage battery box of claim 1, wherein: the inside fan that sets up of box.

9. The heat dissipating energy storage battery box of claim 8, wherein: the fan is arranged between the air inlet hole and the air outlet hole.

10. An energy storage battery system comprises a container, a plurality of battery clusters arranged in the container and a heat dissipation device; each battery cluster comprises a plurality of battery boxes; the heat dissipation device is used for exchanging heat between the energy storage battery system and the outside; the method is characterized in that: the battery box is the heat dissipation energy storage battery box of any one of claims 1 to 9.

11. The energy storage battery system of claim 10, wherein: the heat dissipation device comprises an air conditioner and an air duct which are arranged in the container.