CN218975559U

CN218975559U - Energy storage system

Info

Publication number: CN218975559U
Application number: CN202223033479.8U
Authority: CN
Inventors: 佘兴华; 赵东兴; 汪承晔
Original assignee: Yunwo Energy Science Research Jiangsu Co ltd
Current assignee: Yunwo Energy Science Research Jiangsu Co ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-05-05
Anticipated expiration: 2032-11-14

Abstract

The utility model provides an energy storage system which comprises a shell, a cooling air source, a cooling channel and at least two rows of stacked battery modules, wherein the cooling air source, the cooling channel and the at least two rows of stacked battery modules are arranged in the shell, each row of stacked battery modules form a battery row, the cooling air source provides cooling air, the cooling air cools the battery row, the cooling channel comprises a third channel arranged at the bottom of the battery row and a fourth channel communicated with the third channel, the cooling air in the fourth channel flows from bottom to top, and an air outlet is arranged on the shell of the battery row at intervals with the fourth channel.

Description

Energy storage system

Technical Field

The present utility model relates to an energy storage system, and more particularly, to an energy storage system capable of effectively dissipating heat from a battery module.

Background

A large number of batteries are arranged in the energy storage container, and the batteries generate a large amount of heat in the charging and discharging process, so that the energy storage container is a main heating source in the container. While the capacity and cycle life of the battery are sensitive to temperature. How to ensure that the batteries operate at a suitable ambient temperature and to reduce the temperature difference between the batteries is one of the core issues that need to be carefully considered in designing an energy storage container. The design of the energy storage container on the market at present is either too complicated to the passageway, resulting in high production cost, complicated installation or too single, resulting in larger temperature difference between the battery packs in the container close to the air conditioner and far from the air conditioner. Thereby affecting the product quality of the whole our energy storage system.

In the currently used air-cooled energy storage system, back air inlet and side air inlet form exist on a battery array, a channel is arranged at the top in the design of a system channel, and cooling air is blown from top to bottom at the position of each air outlet. The initial wind speed is high, and the direction is the same as the gravity direction, so that the distribution of the upper and lower layers of wind is unreasonable and has deviation.

Accordingly, there is a need to provide an energy storage system that solves the above-mentioned problems.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides an energy storage system capable of effectively cooling a battery module.

The technical scheme of the utility model is as follows:

the utility model provides an energy storage system, includes shell and set up cooling air supply, cooling channel and at least two battery module that stacks in the shell, every battery module that stacks forms the battery row, the cooling air supply provides cooling air, and cooling air is through right the battery row cools off, a serial communication port, cooling channel including set up in the third passageway of the bottom of battery row and with the fourth passageway of third passageway intercommunication, cooling air flows from down upwards in the fourth passageway, with fourth interval be provided with the air outlet on the shell of battery row.

As a further improvement of the present utility model, the cooling passage further includes a first passage provided at the top ends of the at least two battery strings, and a second passage communicating the first passage with the third passage.

As a further improvement of the present utility model, the cooling air paths from the cooling air source, the first passage, the second passage, and the third passage are closed, and dissipated to the fourth passage.

As a further improvement of the present utility model, the second channels have a plurality and are provided on the side surface of the battery row.

As a further improvement of the present utility model, the third channel is a single interconnected channel or a plurality of channels isolated from each other.

As a further improvement of the present utility model, the second channel is provided on the back surface of the battery row, and the fourth channel is provided on the side surface of the battery row.

As a further improvement of the present utility model, the fourth channel is disposed on the back surface of the battery row, and the air outlet is disposed on a side of the fourth channel facing the battery row.

As a further improvement of the present utility model, the casing is provided with an axial flow fan for promoting the flow of the cooling air from the air outlet to the battery row.

As a further improvement of the utility model, the cooling air source is an air conditioner.

As a further improvement of the utility model, a fan is provided in the second passage for forcing cooling air from the first passage to the second passage.

According to the utility model of the scheme, the beneficial effects of the utility model are as follows:

the utility model radiates heat to the battery module through the arrangement of a plurality of channels.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present utility model;

FIG. 2 is a front view of one embodiment of the present utility model;

FIG. 3 is a front view of an embodiment of the present utility model with the flow direction of cooling wind added to show the path of the cooling wind;

FIG. 4 is a left side view of an embodiment of the present utility model in which the flow direction of cooling air is increased to show the path of the cooling air.

In the figure: 10. a housing; 20. a cooling air source; 30. a battery string; 41. a first channel; 42. a second channel; 43. a third channel; 44. and a fourth channel.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. 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 utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Referring to fig. 1-4, schematic diagrams of one embodiment of an energy storage system of the present utility model are shown. The present utility model provides an energy storage system 100 comprising an enclosure 10, the enclosure 10 being made from a plurality of sheets. A plurality of devices including a cooling air source 20 providing cooling air, a cooling passage delivering the cooling air provided by the cooling air source 20, and 8 battery strings 30 formed by stacking a plurality of battery modules are provided in the case 10. The cooling air source 20 is an air conditioner in this embodiment. The cooling passage is formed in a system including a plurality of passages, including a first passage 41 provided at the upper portion of the battery string 30, the first passage 41 communicating with the wind port of the cooling wind source 20 so that cooling wind can enter the first passage 41. In the present embodiment, the first passage 41 is located above all of the battery strings 30. A plurality of second channels 42 are communicated with the first channels 41, the second channels 42 are arranged on the side face of each battery column 30, the space between each battery column 30 is used as an air supply path, and closed sheet metal parts are arranged around the space, so that the air outlet of the first channels 41 is downwards conveyed through the second channels 42, and the dissipation of cooling air is avoided. In this embodiment, the cooling air exchanges heat with the air between the battery strings 30 through the metal plate wall surface of the second channel 42, so as to reduce the ambient temperature of the two sides of the battery strings 30 and improve the natural convection of the outer surface of the battery module. A third passage 43 is provided below the second passages 42, and the third passage 43 is provided below at least two of the battery rows 30, in this embodiment, below all of the battery rows, so that the gases of the plurality of second passages 42 can communicate with each other. Of course, in other embodiments, the plurality of third channels 43 may be isolated from one another to form separate channels. The fourth duct 44 is provided at the rear surface of the battery string 30 to communicate with the third duct 43 such that the cooling air in the fourth duct 44 flows from the bottom to the top, while an air outlet (not numbered) is provided at the surface of the fourth duct 44 facing the battery string 30, through which the cooling air is blown toward the battery module, at the front end of the battery module, or an axial flow fan is provided at the housing such that the cooling air flows from the air outlet to the battery string 30. In summary, the cooling air paths from the cooling air source, the first channel, the second channel and the third channel are closed, and dissipated to the fourth channel.

In the present embodiment, the force for promoting the flow of the cooling air includes the force of the cooling air source port and the force of the axial flow fan, however, other forces for promoting the flow of the air may be provided in the entire cooling passage in other embodiments, for example, a fan for promoting the flow of the cooling air from the first passage 41 to the second passage 42 may be provided in the second passage 42.

In other embodiments, the first and second channels may not be provided, and the cooling air of the cooling air source may be directly introduced into the third channel, which is a relatively simple design. The second channels may be disposed on the sides of all the battery strings, and may be selectively disposed, or the second channels may be disposed on the back of the battery strings, while the fourth channels may be disposed on the sides of the battery strings, without affecting the idea of the present application.

It is emphasized that: the above embodiments are merely preferred embodiments of the present utility model, and the present utility model is not limited in any way, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. The utility model provides an energy storage system, its characterized in that includes shell (10) and sets up cooling wind source (20), cooling channel and at least two battery module that stacks in shell (10), every battery module that stacks forms battery row (30), cooling wind source (20) provide cooling wind, cooling wind is through right battery row (30) are cooled off, cooling channel including set up in third passageway (43) of the bottom of battery row (30) and with fourth passageway (44) of third passageway (43) intercommunication, cooling wind upward flow from the bottom in fourth passageway (44), with fourth passageway (44) interval be provided with the air outlet on shell (10) of battery row (30).

2. The energy storage system of claim 1, wherein the cooling channel further comprises a first channel (41) provided at the top ends of the at least two battery strings (30), and a second channel (42) communicating the first channel (41) with a third channel (43).

3. The energy storage system of claim 2, wherein cooling air paths from the cooling air source (20), the first channel (41), the second channel (42), and the third channel (43) are closed to a fourth channel (44) for dissipation.

4. The energy storage system according to claim 2 or 3, wherein the second channel (42) has a plurality, is arranged at a side of the battery string (30).

5. A system according to claim 2 or 3, characterized in that the third channel (43) is a single interconnected channel or a plurality of channels isolated from each other.

6. The energy storage system according to claim 2 or 3, wherein the second channel (42) is arranged at the back of the battery string (30) and the fourth channel (44) is arranged at the side of the battery string (30).

7. The energy storage system according to claim 1, 2 or 3, wherein the fourth channel (44) is arranged at the back of the battery string (30), and the air outlet is arranged at the side of the fourth channel (44) facing the battery string (30).

8. The energy storage system according to claim 7, characterized in that an axial fan is provided on the housing (10) for forcing the cooling air from the air outlet to flow to the battery string (30).

9. Energy storage system according to claim 1, characterized in that the cooling wind source (20) is an air conditioner.

10. Energy storage system according to claim 2, characterized in that a fan is provided in the second channel (42) for forcing cooling air from the first channel (41) to the second channel (42).