阅读说明：本技术 储能系统 (Energy storage system ) 是由 杨强 易梓琦 吴祖钰 张万财 于 2021-08-19 设计创作，主要内容包括：本发明公开了一种储能系统,所述储能系统包括：多个储电模块,每个所述储电模块包括独立外壳和设于所述独立外壳内的电池组,多个所述储电模块包括沿设定方向排布的第一储能层,其中相邻的所述储电模块的所述独立外壳彼此独立。根据本发明实施例的储能系统具有可根据场地的形状排布,使储能系统的设置更加灵活多变等优点。(The invention discloses an energy storage system, comprising: the battery pack comprises a plurality of battery storage modules, each battery storage module comprises an independent shell and a battery pack arranged in the independent shell, the plurality of battery storage modules comprise first energy storage layers arranged along a set direction, and the independent shells of the adjacent battery storage modules are independent of each other. The energy storage system provided by the embodiment of the invention has the advantages that the energy storage system can be arranged according to the shape of a field, the arrangement of the energy storage system is more flexible and changeable, and the like.)

1. An energy storage system, comprising:

the battery pack comprises a plurality of battery storage modules, each battery storage module comprises an independent shell and a battery pack arranged in the independent shell, the plurality of battery storage modules comprise first energy storage layers arranged along a set direction, and the independent shells of the adjacent battery storage modules are independent of each other.

2. The energy storage system of claim 1, wherein the energy storage system has an electrical connection connecting at least two of the energy storage modules at least partially disposed outside of the independent housing.

3. The energy storage system of claim 2, wherein the electrical storage module includes a terminal exposed from the separate housing, the electrical connection being integrally located outside the separate housing and connecting the terminal.

4. The energy storage system according to claim 1, wherein the electric storage module has a fire extinguishing unit that is provided to spray a fire extinguishing medium to a target electric storage module and the fire extinguishing medium is confined by an independent closed space formed by the independent housing of the target electric storage module, thereby preventing the fire extinguishing medium from spreading to other electric storage modules adjacent to the target electric storage module.

5. The energy storage system of claim 4, wherein the fire suppression units are independently configured for each of the electrical storage modules.

6. The energy storage system of claim 1, wherein the energy storage system has a cooling connection connecting at least two of the electrical storage modules at least partially disposed outside the independent housing to cool the electrical storage modules.

7. The energy storage system of claim 1,

the energy storage system has an electrical connection connecting at least two of the energy storage modules in a manner at least partially disposed outside the independent housing;

the energy storage system has a cooling connection connecting at least two of the electrical storage modules in a manner at least partially disposed outside the independent enclosure to cool the electrical storage modules;

wherein the electrical connection portion is disposed on a first side of the plurality of electric storage modules, and the cooling connection portion is disposed on a second side of the plurality of electric storage modules, the first side and the second side being adjacent or opposite sides of the plurality of electric storage modules.

8. The energy storage system of claim 1,

the energy storage system has an electrical connection connecting at least two of the energy storage modules in a manner at least partially disposed outside the independent housing;

the energy storage system has a cooling connection connecting at least two of the electrical storage modules in a manner at least partially disposed outside the independent enclosure to cool the electrical storage modules;

wherein the electrical connection portion and the cooling connection portion are disposed on the same side of the plurality of power storage modules, but the electrical connection portion and the cooling connection portion are isolated from each other.

9. The energy storage system of claim 1, wherein in the first energy storage layer, two adjacent ones of the energy storage modules abut each other.

10. The energy storage system of claim 1, wherein the first energy storage layer comprises a first row of modules having a length direction extending in a first horizontal direction.

11. The energy storage system of claim 10, wherein there are two first module rows, and wherein the two first module rows are symmetrically disposed along the first horizontal direction.

12. The energy storage system of claim 10, wherein the first energy storage layer further comprises a second module row, wherein one end of the first module row is contiguous with one end of the second module row, and wherein an angle between a length direction of the first module row and a length direction of the second module row is greater than 0 degrees and less than 180 degrees.

13. The energy storage system of claim 10, wherein the first energy storage layer further comprises a second module row extending in a second horizontal direction, and wherein a middle portion of the first module row is connected to one end of the second module row.

14. The energy storage system of claim 13, wherein there are two of the second module rows, and the two second module rows are symmetrically disposed along the second horizontal direction.

15. The energy storage system of claim 10, wherein the first energy storage layer further comprises a second module row extending in a second horizontal direction, the first module row perpendicularly intersecting the second module row.

16. The energy storage system of claim 1, wherein the first energy storage layer comprises a plurality of first module rows connected end-to-end to each other in a closed loop.

Technical Field

The invention relates to the technical field of energy storage, in particular to an energy storage system.

Background

In the related technology, an energy storage system is an essential basic measure for the development of a micro-grid, an island grid, a distributed power generation system and a new energy automobile rapid charging technology. The energy storage system is applied to the power system, so that the demand side management, the peak clipping and valley filling, the load smoothing and the power grid frequency quick adjustment are realized, the operation stability and reliability of the power grid are improved, and the impact of a new energy power generation system with large instantaneous changes such as photovoltaic and wind power on the power grid is reduced. However, in the prior art, the energy storage system is generally a container type integral structure, which has a high requirement on a setting site and is inconvenient for coping with different power and capacity requirements of users.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an energy storage system which has the advantages that the energy storage system can be arranged according to the shape of a field, the arrangement of the energy storage system is more flexible and changeable, and the like.

To achieve the above object, an embodiment according to the present invention proposes an energy storage system, including: the battery pack comprises a plurality of battery storage modules, each battery storage module comprises an independent shell and a battery pack arranged in the independent shell, the plurality of battery storage modules comprise first energy storage layers arranged along a set direction, and the independent shells of the adjacent battery storage modules are independent of each other.

The energy storage system provided by the embodiment of the invention has the advantages that the energy storage system can be arranged according to the shape of a field, the arrangement of the energy storage system is more flexible and changeable, and the like.

In addition, the energy storage system according to the above embodiment of the present invention may further have the following additional technical features:

according to some embodiments of the invention, the energy storage system has an electrical connection connecting at least two of the energy storage modules in a manner at least partially arranged outside the separate housing.

According to some embodiments of the invention, the electric storage module includes a connection terminal exposed from the separate case, and the electric connection portion is integrally located outside the separate case and connected to the connection terminal.

According to some embodiments of the present invention, the electric storage module has a fire extinguishing unit disposed to spray an extinguishing medium to a target electric storage module and the extinguishing medium is confined by an independent closed space formed by the independent housings of the target electric storage module, thereby preventing the extinguishing medium from spreading to other electric storage modules adjacent to the target electric storage module.

According to some embodiments of the invention, the fire extinguishing unit is configured independently for each of the electric storage modules.

According to some embodiments of the invention, the energy storage system has a cooling connection connecting at least two of the energy storage modules in a manner at least partially arranged outside the separate housing for cooling the energy storage modules.

According to some embodiments of the invention, the energy storage system has an electrical connection connecting at least two of the energy storage modules in a manner at least partially disposed outside the independent housing; the energy storage system has a cooling connection connecting at least two of the electrical storage modules in a manner at least partially disposed outside the independent enclosure to cool the electrical storage modules; wherein the electrical connection portion is disposed on a first side of the plurality of electric storage modules, and the cooling connection portion is disposed on a second side of the plurality of electric storage modules, the first side and the second side being adjacent or opposite sides of the plurality of electric storage modules.

According to some embodiments of the invention, the energy storage system has an electrical connection connecting at least two of the energy storage modules in a manner at least partially disposed outside the independent housing; the energy storage system has a cooling connection connecting at least two of the electrical storage modules in a manner at least partially disposed outside the independent enclosure to cool the electrical storage modules; wherein the electrical connection portion and the cooling connection portion are disposed on the same side of the plurality of power storage modules, but the electrical connection portion and the cooling connection portion are isolated from each other.

According to some embodiments of the invention, in the first energy storage layer, two adjacent electric storage modules abut each other.

According to some embodiments of the invention, the first energy storage layer comprises a first module row having a length direction extending in a first horizontal direction.

According to some embodiments of the invention, the first module rows are two, and the two first module rows are symmetrically arranged along the first horizontal direction.

According to some embodiments of the invention, the first energy storage layer further comprises a second module row, one end of the first module row is adjacent to one end of the second module row, and an angle between a length direction of the first module row and a length direction of the second module row is greater than 0 degree and less than 180 degrees.

According to some embodiments of the invention, the first energy storage layer further comprises a second module row extending in a second horizontal direction, a middle portion of the first module row being connected to one end of the second module row.

According to some embodiments of the invention, the number of the second module rows is two, and the two second module rows are symmetrically arranged along the second horizontal direction.

According to some embodiments of the invention, the first energy storage layer further comprises a second module row extending in a second horizontal direction, the first module row perpendicularly crossing the second module row.

According to some embodiments of the invention, the first energy storage layer comprises a plurality of first module rows connected end to each other in a closed loop shape.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic diagram of an energy storage system according to some embodiments of the invention.

Fig. 2 is an enlarged view at D in fig. 1.

Fig. 3 is a schematic structural diagram of an electric storage module of the energy storage system according to the embodiment of the invention.

Fig. 4 is a schematic structural diagram of an electric storage module of the energy storage system according to the embodiment of the invention.

Fig. 5 is a schematic structural diagram of an electric storage module of the energy storage system according to the embodiment of the invention.

Fig. 6 is a schematic diagram of an energy storage system according to some embodiments of the invention.

Fig. 7 is a schematic diagram of an energy storage system according to further embodiments of the present invention.

Fig. 8 is a schematic diagram of an energy storage system according to further embodiments of the present invention.

Fig. 9 is a schematic diagram of an energy storage system according to further embodiments of the present invention.

Fig. 10 is a schematic diagram of an energy storage system according to further embodiments of the present invention.

Fig. 11 is a schematic diagram of an energy storage system according to further embodiments of the present invention.

Fig. 12 is a schematic diagram of an energy storage system according to further embodiments of the invention.

Fig. 13 is a schematic diagram of an energy storage system according to further embodiments of the present invention.

Fig. 14 is a schematic diagram of an energy storage system according to further embodiments of the invention.

Fig. 15 is a schematic diagram of an energy storage system according to further embodiments of the invention.

Fig. 16 is a schematic diagram of an energy storage system according to further embodiments of the invention.

Reference numerals: the energy storage system comprises an energy storage system 1, a first energy storage layer 10, a first module row 11, a second module row 12, an electric connection part 20, a cooling connection part 30, a fire-fighting connection part 40, an electricity storage module 100, an independent shell 110, a shell body 111, a door body 112, a battery pack 120, a wiring terminal 130 and a fire extinguishing unit 140.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

An energy storage system 1 according to an embodiment of the invention is described below with reference to the drawings.

As shown in fig. 1 to 16, the energy storage system 1 according to the embodiment of the invention includes a plurality of energy storage modules 100.

It should be understood here that, as shown in fig. 4 and 5, each of the power storage modules 100 includes an independent housing 110 and a battery pack 120 disposed in the independent housing 110, the independent housing 110 may form an independent sealed independent closed space, and the battery pack 120 is disposed in the independent closed space, wherein the battery pack 120 may be plural. For example, the power storage module 100 includes a rectangular parallelepiped independent housing 110, the height direction of the independent housing 110 extends vertically, the length direction extends back and forth, and the width direction extends left and right (the up and down direction is shown in fig. 1, the left and right direction is shown in fig. 1, and the front and back direction is shown in fig. 1. it should be understood that the above directions are limited only for convenience of description of the drawings, and do not limit the actual installation position and direction of the energy storage system 1), the independent housing 110 includes a housing body 111 and a door body 112, a front side surface of the housing body 111 has an opening, the door body 112 is rotatably installed on the housing body 111 to open and close the opening, when the door body 112 is closed, the housing body 111 and the door body 112 jointly define an independent closed space, and the plurality of battery packs 120 are installed in the independent closed space at intervals in the up and down direction.

In some embodiments, each of the power storage modules 100 includes an independent case 110 and a battery pack 120 provided in the independent case 110, and the plurality of power storage modules 100 includes the first energy storage layers 10 arranged in a set direction, in which the independent cases 110 of the adjacent power storage modules 100 are independent of each other. For example, the plurality of power storage modules 100 includes a plurality of first energy storage layers 10 stacked in an up-down direction, each of the first energy storage layers 10 is arranged in a specific shape in a horizontal direction, and the shape of the first energy storage layers 10 may be determined according to an actual topographic condition of an installation site.

It should be understood that the first energy storage layer 10 refers to a plurality of energy storage modules 100 installed in the same horizontal plane, in other words, the plurality of energy storage modules 100 in the first energy storage layer 10 are all arranged in the horizontal direction. For example, the energy storage system 1 includes a single first energy storage layer 10, the first energy storage layer 10 has a plurality of energy storage modules 100 arranged in sequence in a first horizontal direction, and each energy storage module 100 is installed on the ground. According to the energy storage system 1 provided by the embodiment of the invention, by arranging the plurality of independent energy storage modules 100, the energy storage modules 100 can be arranged into a proper shape according to the actual terrain condition of an installation site and the capacity requirement of a user, so that the energy storage system 1 is more flexible and changeable in arrangement and can be adapted to the installation site, the requirement on the installation site is reduced conveniently, the energy storage system 1 is convenient to install and arrange, and different power and capacity requirements of the user are met conveniently.

And, compare container formula energy storage system, set up the mode that the baffle formed a plurality of group battery installation cavities in the container. The number of the electricity storage modules 100 can be flexibly set according to capacity requirements, waste of space in a container caused by insufficient filling of the battery pack 120 is avoided, the energy density of the energy storage system 1 is conveniently improved, the cost of the energy storage system 1 can be reduced, and the occupied space of the energy storage system 1 is reduced. When a failure occurs in one or some of the plurality of power storage modules 100, the power storage modules can be repaired and replaced in a targeted manner, so that the maintenance cost of the energy storage system 1 is reduced, and the maintenance efficiency is improved.

In addition, when the power storage module 100 is in a fire, the internal condition of the power storage module 100 can be detected in time, and the fire condition is prevented from being expanded due to detection delay. Meanwhile, the independent power storage module 100 can isolate the fire in the power storage module 100, so that the power storage module 100 is convenient to carry out fire fighting operation, the pertinence and the effectiveness of fire fighting are improved, substances such as flame and fire extinguishing media can be prevented from diffusing to other adjacent power storage modules 100, and the loss caused by fire is reduced.

Therefore, the energy storage system 1 according to the embodiment of the invention has the advantages that the arrangement can be performed according to the shape of the site, the arrangement of the energy storage system 1 is more flexible and changeable, and the like.

An energy storage system 1 according to a specific embodiment of the present invention is described below with reference to the drawings.

In some specific embodiments of the present invention, as shown in fig. 1 to 16, the energy storage system 1 according to the embodiment of the present invention includes a plurality of energy storage modules 100.

In some embodiments of the invention, as shown in fig. 2, the energy storage system 1 has an electrical connection 20, the electrical connection 20 connecting at least two energy storage modules 100 in a manner that is at least partially disposed outside of the separate housing 110. This not only is convenient for electrically connect a plurality of electricity storage modules 100 to in addition, be convenient for provide the electric energy that satisfies the needs, be convenient for realize the sealed setting of independent shell 110, can also avoid electric connection 20 to occupy too much space in the independent shell 110, be convenient for improve the energy density of electricity storage module 100.

In some alternative examples, as shown in fig. 3, the power storage module 100 includes a connection terminal 130 exposed from the separate case 110, and the electrical connection part 20 is integrally located outside the separate case 110 and connected to the connection terminal 130. So that the electrical connection portion 20 can electrically connect a plurality of power storage modules 100 together through the connection terminal 130.

Optionally, the connecting terminal 130 is a high voltage electrical connection structure, including a total positive terminal and a total negative terminal, and is provided with a quick-insertion device. The electrical connection portion 20 is sequentially connected to the connection terminals 130 of the respective power storage modules 100 so as to integrally regulate and control the amount of power output from the plurality of power storage modules 100.

In some embodiments of the present invention, as shown in fig. 4, the electric storage module 100 has a fire extinguishing unit 140, the fire extinguishing unit 140 is provided to spray a fire extinguishing medium toward the target electric storage module 100, and the fire extinguishing medium is confined by an independent closed space formed by the independent housings 110 of the target electric storage module 100, thereby preventing the fire extinguishing medium from spreading toward other electric storage modules 100 adjacent to the target electric storage module 100. Therefore, the fire extinguishing unit 140 can be used for extinguishing the fire of the electricity storage module 100 in time and pertinently, the fire extinguishing effect is improved, the loss of the fire is reduced, flame, fire extinguishing medium and the like can be effectively prevented from diffusing to other adjacent electricity storage modules 100 of the target electricity storage module 100, and the other electricity storage modules 100 are prevented from generating the fire.

It is to be understood here that the extinguishing medium can be water or extinguishing gas.

In some alternative examples, as shown in fig. 4, the fire extinguishing unit 140 is independently configured corresponding to each power storage module 100. Thus, each power storage module 100 may be provided with a respective fire extinguishing unit 140 in order to ensure the fire fighting needs of each power storage module 100, improving the timeliness and pertinence of fire extinguishing measures.

Alternatively, the fire extinguishing unit 140 may include a water spray and a gas spray, etc. As shown in fig. 2, the energy storage system 1 has a fire-fighting connection 40, and the fire-fighting connection 40 is connected with the fire extinguishing unit 140 of each of the energy storage modules 100 in such a manner as to be disposed at least partially outside the independent housing 110 to supply water and fire extinguishing gas to each of the energy storage modules 100.

In some embodiments of the invention, as shown in fig. 2, the energy storage system 1 has a cooling connection 30, the cooling connection 30 connecting at least two energy storage modules 100 in such a way that it is at least partially arranged outside the separate housing 110 for cooling the energy storage modules 100. Therefore, the cooling medium of the plurality of electricity storage modules 100 can be conveniently communicated, the energy storage system 1 is formed into an integral cooling system, the independent shell 110 is conveniently sealed, the cooling connecting part 30 can be prevented from occupying too much space in the independent shell 110, and the energy density of the electricity storage modules 100 can be conveniently improved.

Alternatively, the power storage module 100 includes a cooling unit for cooling the battery pack 120, the cooling unit having a cooling interface exposed from the separate case 110, as shown in fig. 2, and the cooling connection 30 is integrally located outside the separate case 110 and connected to the cooling interface. The cooling connection 30 thus connects the cooling units of the plurality of electric storage modules 100 together via the cooling interface, facilitating the circulation of the cooling medium between the plurality of electric storage modules 100.

In some alternative embodiments, the energy storage system 1 has an electrical connection 20, the electrical connection 20 connecting at least two energy storage modules 100 in a manner that is at least partially arranged outside the separate housing 110. The energy storage system 1 has a cooling connection 30, the cooling connection 30 connecting at least two energy storage modules 100 in such a way that it is at least partially arranged outside the separate housing 110 in order to cool the energy storage modules 100. Wherein the electrical connection portion 20 is disposed on a first side of the plurality of power storage modules 100, and the cooling connection portion 30 is disposed on a second side of the plurality of power storage modules 100, the first side and the second side being adjacent sides or opposite sides of the plurality of power storage modules 100. Therefore, the electric connection part 20 and the cooling connection part 30 can be arranged separately, so that not only can a sufficient arrangement space be provided, but also the conditions of electric leakage and the like caused by the contact of the electric connection part and the cooling connection part can be avoided, and the working reliability and the safety of the energy storage system 1 are improved.

In further alternative embodiments, as shown in fig. 2, the energy storage system 1 has an electrical connection 20, the electrical connection 20 connecting at least two energy storage modules 100 in such a way that it is at least partially arranged outside the separate housing 110. The energy storage system 1 has a cooling connection 30, the cooling connection 30 connecting at least two energy storage modules 100 in such a way that it is at least partially arranged outside the separate housing 110 in order to cool the energy storage modules 100. In which the electrical connection portions 20 and the cooling connection portions 30 are arranged on the same side of the plurality of power storage modules 100, but the electrical connection portions 20 and the cooling connection portions 30 are isolated from each other. In this way, the electrical connection portion 20 and the cooling connection portion 30 can be separately arranged, so that the situation of electric leakage and the like caused by contact between the two portions can be avoided, and the working reliability and safety of the energy storage system 1 are improved. At the same time, it is also convenient to protect the electrical connection portion 20 and the cooling connection portion 30, for example, to provide a protective cover that covers the exterior of the electrical connection portion 20 and the cooling connection portion 30.

In some embodiments of the present invention, in the first energy storage layer 10, adjacent two energy storage modules 100 abut each other. This facilitates the arrangement of the plurality of power storage modules 100 in a specific shape, makes the energy storage system 1 more reasonable and compact, and minimizes the occupied space.

Alternatively, a plurality of the power storage modules 100 may be connected by a structure such as a base, or two adjacent power storage modules 100 may be connected by a locking structure of each power storage module 100.

In some specific examples, as shown in fig. 16, in the first energy storage layer 10, adjacent side walls of the independent housings 110 of adjacent two power storage modules 100 are fitted. Therefore, the structural compactness of the energy storage system 1 can be further improved, the occupied space is reduced as much as possible, and the energy density of the energy storage system 1 is improved.

In other specific examples, in the first energy storage layer 10, adjacent side walls of the independent housings 110 of two adjacent power storage modules 100 are spaced apart by a distance of not more than 10 cm. This facilitates not only the arrangement of the plurality of power storage modules 100 but also the maintenance and replacement of a specific power storage module 100 when it is damaged.

In some embodiments of the present invention, as shown in fig. 6, the first energy storage layer 10 includes a first module row 11 having a length direction extending in a first horizontal direction. That is, the plurality of power storage modules 100 in the first energy storage layer 10 may be linearly arranged in the first module row 11 in the first horizontal direction. This facilitates the arrangement of the energy storage system 1 in a relatively narrow space.

It should be understood that the first module row 11 refers to a plurality of power storage modules 100 installed in the same horizontal plane and extending in the same horizontal direction, in other words, the plurality of power storage modules 100 in the first module row 11 are all arranged in a certain horizontal direction. For example, the first energy storage layer 10 includes a first module row 11, the first module row 11 has a plurality of electric storage modules 100 arranged in sequence in the front-rear direction, and each electric storage module 100 is installed on the ground.

In some alternative embodiments, as shown in fig. 7, there are two first module rows 11, and the two first module rows 11 are symmetrically arranged along the first horizontal direction. That is, the two first module rows 11 are arranged back to back, the side walls of adjacent sides of the two first module rows 11 abut each other and the side walls of opposite sides face outward away from each other. For example, the first module row 11 includes 5 power storage modules 100, and the 5 power storage modules 100 of the first module row 11 and the 5 power storage modules 100 of the second first module row 11 are arranged in one-to-one correspondence, where the side walls of the independent housings of each power storage module 100 having openings are arranged in a direction away from each other and the side walls of the opposite sides are arranged in abutment with the side walls of the corresponding power storage modules 100.

In other embodiments of the present invention, as shown in fig. 8 to 10, the first energy storage layer 10 further includes a second module row 12, one end of the first module row 11 is adjacent to one end of the second module row 12, and an included angle between a length direction of the first module row 11 and a length direction of the second module row 12 is greater than 0 degree and less than 180 degrees. That is, the first module row 11 and the second module row 12 are connected in a V-shaped structure, and the included angle between the length direction of the first module row 11 and the length direction of the second module row 12 may be an acute angle, a right angle or an obtuse angle.

It is to be understood here that the second module row 12 refers to a plurality of power storage modules 100 that are mounted in the same horizontal plane and extend in the same horizontal direction, and the extending direction of the first module row 11 is different from the extending direction of the second module row 12. In other words, the plurality of power storage modules 100 in the second module row 12 are arranged in a horizontal direction different from the extending direction of the first module row 11. For example, the first module row 11 has a plurality of electricity storage modules 100 arranged in sequence in the front-rear direction, each electricity storage module 100 being installed on the ground, and the second module row 12 has a plurality of electricity storage modules 100 arranged in sequence in the left-right direction, each electricity storage module 100 being installed on the ground.

In other embodiments of the present invention, as shown in fig. 11, the first energy storage layer 10 further includes a second module row 12 extending in the second horizontal direction, and the middle of the first module row 11 is connected to one end of the second module row 12. That is, the first module row 11 and the second module row 12 are connected to form a T-shaped structure, and the included angle between the length direction of the first module row 11 and the length direction of the second module row 12 may be an acute angle, a right angle or an obtuse angle.

In some alternative embodiments, as shown in fig. 12, there are two second module rows 12, and two second module rows 12 are symmetrically arranged along the second horizontal direction. This not only allows more power storage modules 100 to be provided, but also ensures that the door 112 of each power storage module 100 can be opened smoothly toward the outside.

In still other embodiments of the present invention, as shown in fig. 13, the first energy storage layer 10 further includes a second module row 12 extending in the second horizontal direction, and the first module row 11 perpendicularly crosses the second module row 12. That is, the first module row 11 and the second module row 12 are connected in a cross-shaped structure, and specifically, the first module row 11 is divided into a first section and a second section, and the second module row 12 is divided into a third section and a fourth section, wherein one end of each of the first section, the second section, the third section and the fourth section is adjacent to each other and the other end extends linearly.

In still other embodiments of the present invention, as shown in fig. 14 and 15, the first energy storage layer 10 includes a plurality of first module rows 11, and the plurality of first module rows 11 are connected end to form a closed loop. For example, the plurality of first module rows 11 of the first energy storage layer 10 may be formed in a triangular shape or a hexagonal shape.

It should be understood here that one first module row 11 refers to a plurality of power storage modules 100 installed in the same horizontal plane and extending in a certain horizontal direction, and the extending directions of any two first module rows 11 in the plurality of first module rows 11 may be the same or different. In other words, the plurality of power storage modules 100 in each first module row 11 are arranged in a horizontal direction, and the extending directions of the different first module rows 11 may be the same or different. For example, the first energy storage layer 10 includes a plurality of first module rows 11, each first module row 11 has a plurality of electricity storage modules 100 sequentially arranged in a horizontal direction, each electricity storage module 100 is installed on the ground, and the plurality of first module rows 11 are connected end to form a closed loop.

In the embodiment of the present invention, as shown in fig. 16, the first energy storage layer 10 is plural, and the plural first energy storage layers 10 are stacked in the vertical direction. Therefore, the space in the vertical direction can be fully utilized, more electricity storage modules 100 can be conveniently arranged in the energy storage system 1, and the electricity storage quantity of the energy storage system 1 is improved.

Other constructions and operations of the energy storage system 1 according to embodiments of the invention are known to those skilled in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the invention, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.