CN215911909U - Energy storage system - Google Patents

Abstract

The utility model discloses an energy storage system, comprising: each power storage module comprises a first independent shell and a battery pack, the first independent shell is provided with an independent closed space, the battery packs are arranged in the independent closed spaces, the first independent shells of the adjacent power storage modules are independent of each other, and the power storage range of each power storage module is 300-600 kwh. The energy storage system provided by the embodiment of the utility model 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.

Description

Energy storage system

Technical Field

The utility model 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.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model 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 a first aspect of the present invention proposes an energy storage system, including: each power storage module comprises a first independent shell and a battery pack, the first independent shell is provided with an independent closed space, the battery packs are arranged in the independent closed spaces, the first independent shells of the adjacent power storage modules are independent of each other, and the power storage range of each power storage module is 300-600 kwh.

The energy storage system provided by the embodiment of the utility model 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 utility model, the energy density of each of the electricity storage modules ranges from 80 to 121 wh/L.

According to some embodiments of the present invention, each of the electric storage modules is provided with a plurality of the battery packs, and in some cases, in a state where a plurality of the battery packs are arranged in parallel and a plurality of the electric storage modules are arranged in series, an output voltage of the energy storage system is in a range of 24 to 500V. In other cases, when a plurality of battery packs are arranged in series and a plurality of electric storage modules are arranged in parallel, the output voltage range of the energy storage system is 960-1600V.

According to some embodiments of the present invention, each of the electricity storage modules is provided with a plurality of battery packs, and in some cases, in a state where the plurality of battery packs are arranged in parallel and the plurality of electricity storage modules are arranged in series, the output current range of the energy storage system is 840-1400A. In other cases, when a plurality of the battery packs are arranged in series and a plurality of the electric storage modules are arranged in parallel, the output current of the energy storage system ranges from 90A to 280A.

According to some embodiments of the utility model, the first independent housing comprises: a first case body having a first opening at one side thereof; the first door body is rotatably arranged on the first shell body to open and close the first opening, and when the first door body is closed, the first shell body and the first door body jointly define the independent closed space.

According to some embodiments of the utility model, 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 first separate housing.

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

According to some embodiments of the utility model, the energy storage system further comprises: a control module including a second independent housing, wherein the first and second independent housings adjacent to each other are independent of each other, the control module being connected with each of the power storage modules through the electrical connection portion.

According to some embodiments of the utility model, the power storage module has a fire extinguishing unit arranged to spray a fire extinguishing medium to a target power storage module and the fire extinguishing medium is confined by the independent closed space of the target power storage module, thereby preventing the fire extinguishing medium from spreading to other power storage modules adjacent to the target power storage module.

According to some embodiments of the utility model, 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 first separate housing for cooling the energy storage modules.

Additional aspects and advantages of the utility model 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 utility model.

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 utility model.

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 utility model.

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

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

Fig. 6 is a schematic structural diagram of an electric storage module of the energy storage system according to the embodiment of the utility model.

Fig. 7 is a schematic structural view of an independent housing of an electricity storage module of the energy storage system according to an embodiment of the utility model.

Fig. 8 is a schematic structural diagram of a control module of the energy storage system according to an embodiment of the utility model.

Fig. 9 is a schematic structural diagram of an energy storage system according to some embodiments of the utility model.

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 utility model.

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 utility model.

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

Fig. 16 is an exploded view of energy storage systems according to further embodiments of the present invention.

Reference numerals: energy storage system 1, first energy storage layer 10, first module row 11, second module row 12, electric connection portion 20, cooling connection portion 30, fire-fighting connection portion 40, communication connection portion 50, and,

The power storage module 100, the first independent shell 110, the first shell body 111, the first door body 112, the battery pack 120, the wiring terminal 130, the fire extinguishing unit 140, the detection unit 150,

A control module 200, a second independent housing 210, a second housing body 211, a second door 212,

A base 310, a top cover 320.

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 utility model 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 utility model includes a plurality of energy storage modules 100.

It should be understood here that each of the power storage modules 100 includes a first individual case 110 and a battery pack 120 disposed in the first individual case 110, the first individual case 110 may form an individually sealed individual closed space, and the battery pack 120 is disposed in the individual closed space, wherein the battery pack 120 may be plural. For example, the power storage module 100 includes a first independent housing 110 in a rectangular parallelepiped shape, the height direction of the first independent housing 110 extends vertically, the length direction extends forward and backward, 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 forward and backward direction is shown in fig. 1, it should be understood that the above-mentioned direction limitations are only for convenience of description of the drawings, and do not limit the actual installation position and direction of the power storage system 1), the first independent housing 110 includes a first housing body 111 and a first door body 112, a front side surface of the first housing body 111 has a first opening, one side edge of the first door body 112 is rotatably provided to the first housing body 111 to open and close the first opening, when the first door body 112 is closed, the first case body 111 and the first door body 112 together define an independent closed space, and the plurality of battery packs 120 are arranged in the independent closed space at intervals in the vertical direction.

In some embodiments, the plurality of power storage modules 100 include the first energy storage layer 10 arranged along a set direction, each power storage module 100 includes a first independent housing 110 and a battery pack 120, the first independent housing 110 has an independent closed space, the battery pack 120 is disposed in the independent closed space, the first independent housings 110 of adjacent power storage modules 100 are independent of each other, and the range of the power storage amount of each power storage module 100 is 300-600 kwh. This makes it possible to control the range of the amount of electricity stored in the electricity storage module 100, and thus to make the electricity storage module 100 relatively small in size and flexible in arrangement.

For example, the power storage amount of each power storage module 100 may range from 400-. The plurality of power storage modules 100 include 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 actual topographic conditions of an installation site.

According to the energy storage system 1 provided by the embodiment of the utility model, 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 condition 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, the fire condition can be controlled conveniently, and the loss caused by the fire is reduced.

Therefore, the energy storage system 1 according to the embodiment of the utility model can be arranged according to the shape of the field, so that the arrangement of the energy storage system is more flexible and changeable.

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 present invention, the energy density of each power storage module 100 ranges from 80-121 wh/L. Wherein w ═ watt, watts; h is hour; l ═ liter. Taken together as "watt-hours per liter" to represent the energy density of the power storage module 100, i.e., the energy per liter of space is between 80-121 wh. Thus, the power storage module 100 has a larger energy density, and facilitates increasing the stored power of the energy storage system 1 with the same volume.

In some embodiments of the present invention, each of the power storage modules 100 is provided with a plurality of battery packs 120, and in some cases, in a state where the plurality of battery packs 120 are arranged in parallel and the plurality of power storage modules 100 are arranged in series, the output voltage of the energy storage system 1 ranges from 24V to 500V, for example, the output voltage of the energy storage system 1 may range from 24V to 400V, and further, the output voltage of the energy storage system 1 may range from 30V, 50V, 100V, or 200V. In other cases, when the plurality of battery packs 120 are arranged in series and the plurality of power storage modules 100 are arranged in parallel, the output voltage range of the energy storage system 1 is 960-1600V, for example, the output voltage range of the energy storage system 1 may be 1100-1600V, and further, the output voltage of the energy storage system 1 may be 1100V, 1200V, 1300V, or 1500V. Thus, the energy storage system 1 can have different output voltages by the different connection modes between the battery packs 120 and the different connection modes between the energy storage modules 100, so as to meet different voltage supply requirements.

In some embodiments of the utility model, each of the energy storage modules 100 is provided with a plurality of battery packs 120, and in some cases, in a state where the plurality of battery packs 120 are arranged in parallel and the plurality of energy storage modules 100 are arranged in series, the output current range of the energy storage system 1 is 840-1400A, for example, the output current range of the energy storage system 1 may be 850-1400A or 1100-1400A, and further, the output current of the energy storage system 1 may be 900A, 1000A, 1100A or 1200A. In another case, when the plurality of battery packs 120 are arranged in series and the plurality of power storage modules 100 are arranged in parallel, the output current of the energy storage system 1 ranges from 90A to 280A, for example, the output current of the energy storage system 1 may range from 100A to 250A, and further, the output current of the energy storage system 1 may range from 100A, 150A, 200A or 250A. Thus, the energy storage system 1 can have different output currents by the difference between the connection modes of the battery packs 120 and the connection modes of the energy storage modules 100, so as to meet different current supply requirements.

In some embodiments, each power storage module 100 is separately connected to a connection assembly. Through setting up every electricity storage module 100 and linking to each other with coupling assembling respectively, can utilize coupling assembling to connect a plurality of electricity storage modules 100 and become a whole, not only can realize every electricity storage module 100's reliable fixed, the installation setting of a plurality of electricity storage modules 100 of being convenient for is convenient for improve energy storage system 1's structural strength and reliability moreover.

Further, as shown in fig. 16, the connection assembly is formed as a top cap 320 and/or a base 310. So that a plurality of the power storage modules 100 can be connected as a whole by the top cover 320 and/or the base 310.

For example, the connection assembly includes a base 310 and a top cover 320, the base 310 being provided with slide rails on which the lower end of each power storage module 100 is slidably fitted, and being in locking connection with the base 310 after the power storage modules 100 are mounted in place. The upper end of each power storage module 100 is detachably connected to the top cover 320. When the target power storage module 100 needs to be replaced, the locking connection of the target power storage module 100 to the base 310 may be released, and then the connection between the target power storage module 100 and the top cover 320 may be released, so that the target power storage module 100 may be replaced.

In other embodiments of the present invention, the connecting assembly includes a plurality of locking structures, and two adjacent power storage modules 100 are connected by one locking structure, so that the plurality of power storage modules 100 are connected as a whole.

In some embodiments of the present invention, as shown in fig. 7, the first independent housing 110 includes a first housing body 111 and a first door 112, one side of the first housing body 111 has a first opening, the first door 112 is rotatably disposed on the first housing body 111 to open and close the first opening, and the first housing body 111 and the first door 112 together define an independent closed space when the first door 112 is closed. Therefore, the parts in the first independent shell 110 can be disassembled and assembled through the first opening, so that the assembly and the forming of the power storage module 100 are facilitated, and the parts in the power storage module 100 can be maintained and replaced conveniently.

In some embodiments, the first independent housing 110 further includes a door sealing member, and the door sealing member is disposed on the first housing body 111 or the first door 112, and seals a gap between the first door 112 and the first housing body 111 when the first door 112 is closed. For example, the door seal is formed as a weather strip provided on the first casing body 111 and extending in the circumferential direction of the first opening, and the door seal is sandwiched between the first casing body 111 and the first door 112 when the first door 112 is closed to seal the first opening. Therefore, the first opening can be reliably sealed, the sealing effect between the first door body 112 and the first shell body 111 is improved, and the formation of an independent closed space is facilitated.

In some optional embodiments, the side wall of the first independent casing 110 has a fireproof heat insulation layer, the independent closed space has a plurality of heat insulation plates therein, the plurality of heat insulation plates divide the independent closed space into a plurality of installation cavities arranged at intervals up and down, and the plurality of battery packs 120 are respectively installed in the plurality of installation cavities. Utilize fire prevention insulating layer and heat insulating board can form the installation cavity that has the thermal-insulated function of fire prevention like this, install group battery 120 respectively in the installation cavity that corresponds, can reduce the influence between the group battery 120, when some group battery 120 took place the condition of a fire, can keep apart the condition of a fire in the installation cavity of place, be convenient for prevent substances such as flame and fire extinguishing medium to other adjacent installation cavities diffusion, be convenient for control the diffusion velocity of conflagration, reduce the loss that the conflagration caused.

In some embodiments of the utility model, as shown in fig. 1 and 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 the first independent housing 110. This not only is convenient for connect a plurality of electricity storage module 100 electricity so that provide the electric energy that satisfies the needs, is convenient for realize the sealed setting of first independent shell 110 moreover, can also avoid electric connection portion 20 to occupy the space in too much first independent shell 110, is convenient for improve electricity storage module 100's energy density.

In some alternative examples, as shown in fig. 4, the power storage module 100 includes a connection terminal 130 exposed from the first separate case 110, and the electrical connection part 20 is integrally located outside the first 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 portions 20 are connected to the connection terminals 130 of the respective power storage modules 100 in turn.

In some embodiments, as shown in fig. 15 and 16, the energy storage system 1 further includes a control module 200, the control module 200 includes a second independent housing 210, wherein the adjacent first and second independent housings 110 and 210 are independent from each other, and the control module 200 is connected with each of the energy storage modules 100 through the electrical connection 20. For example, the second independent housing 210 includes a second housing body 211 and a second door body 212, the second housing body 211 and the second door body 212 defining an electric appliance installation space when the second door body 212 is closed, a front side surface of the second housing body 211 having a second opening, the second door body 212 being rotatably provided to the second housing body 211 to open and close the second opening.

It should be understood here that "the control module 200 is connected to each power storage module 100 through the electrical connection portion 20" includes at least communication connection and electrical connection, the control module 200 has at least a controller and an energy storage ac, the controller controls the operating state of the fire extinguishing unit 140 in the power storage module 100 according to the detection result of the detection unit 150 in the power storage module 100, the plurality of power storage modules 100 are electrically connected to the energy storage ac, and the energy storage system 1 may supply power to the outside through the energy storage ac.

In this way, when a fire breaks out in the target power storage module 100, the control module 200 can receive the internal condition information of the target power storage module 100 in time and control the fire extinguishing unit 140 in the power storage module 100 to operate. Through the communication cooperation of control module 200 and electricity storage module 100 like this, not only can avoid detecting delay and cause the condition of a fire to enlarge, independent electricity storage module 100 can keep apart the condition of a fire in this electricity storage module 100 moreover, is convenient for carry out the fire control to this electricity storage module 100 and puts out a fire the operation, improves the pertinence and the actual effect of putting out a fire, can also prevent materials such as flame and fire extinguishing medium to other adjacent electricity storage modules 100 diffusion, is convenient for reduce the loss that the conflagration caused.

Meanwhile, the adjacent first independent housing 110 and the second independent housing 210 are independent of each other, which not only can reliably protect the parts in the control module 200, but also can prevent substances such as flame and fire extinguishing medium from diffusing to the control module 200 when the power storage module 100 adjacent to the control module 200 is in fire, so that the loss caused by fire can be reduced, the control module 200 can be protected, and the working stability and reliability of the control module 200 can be improved.

In some embodiments of the present invention, the plurality of power storage modules 100 are arranged linearly in the outer circumference of the control module 200 in a set direction with reference to the control module 200. Therefore, the control module 200 is connected with the plurality of electricity storage modules 100 conveniently, the plurality of electricity storage modules 100 are arranged in a specific shape conveniently, the energy storage system 1 is more reasonable and compact, the shape of the energy storage system is matched with that of an installation site, the occupied space is reduced as much as possible, and the energy density is improved.

In some alternative embodiments, the plurality of power storage modules 100 are divided into a first section and a second section, the first section being linearly arranged on a first side of the control module 200, and the second section being linearly arranged on a second side of the control module 200. The length direction of the first part and the length direction of the second part can be parallel or have a certain included angle. For example, the first side and the second side of the control module 200 are opposite sides, and the length direction of the first portion and the length direction of the second portion both extend along the first horizontal direction and are located on the same straight line. This facilitates smooth connection of the control module 200 with the power storage module 100, reduces the length of the connection structure, and facilitates arrangement of the connection structure between the power storage module 100 and the control module 200.

In some alternative embodiments, there are at least two control modules 200, and each control module 200 includes a second independent housing 210, wherein the second independent housings 210 of adjacent control modules 200 are independent of each other. Thus, each control module 200 can be relatively independent, and when a fire or a fault occurs in one of the control modules 200, the normal operation of the other control modules 200 can not be affected.

In some embodiments, the first independent housing 110 and the second independent housing 210 have the same overall dimensions. That is, the first independent housing 110 and the second independent housing 210 are common parts having the same external dimensions, for example, the first independent housing 110 and the second independent housing 210 are rectangular parallelepiped housings having the same length, width and height. Therefore, the first independent shell 110 and the second independent shell 210 can be processed and manufactured conveniently, the processing efficiency is improved, the processing cost is reduced, and the appearance of the energy storage system 1 is more neat and attractive.

It should be understood that the above-mentioned embodiment omits the structure of processing the connection holes on the outer surfaces of the first independent outer shell 110 and the second independent outer shell 210, for example, the outer top surface of the first independent outer shell 110 may have a plurality of connection holes, and the outer top surface of the second independent outer shell 210 may be completely imperforate.

In some embodiments of the present invention, the control module 200 is communicatively connected to a plurality of power storage modules 100, respectively, and the control module 200 is electrically connected to at least one power storage module 100. Thus, the control module 200 can receive the operating state information of each power storage module 100 in time and perform targeted control on each power storage module 100. Meanwhile, the electric energy of the power storage module 100 may be concentrated into the control module 200 and supplied to the outside through the control module 200. For example, a plurality of the power storage modules 100 may be arranged in series with each other, and the control module 200 is electrically connected to one of the power storage modules 100.

In some embodiments of the utility model, the energy storage system 1 has an electrical connection 20, the electrical connection 20 connecting the at least two energy storage modules 100 and the control module 200 in such a way that it is at least partially arranged outside the first independent housing 110. This not only is convenient for connect a plurality of electricity storage module 100 electricity so that provide the electric energy that satisfies the needs, is convenient for realize the sealed setting of first independent shell 110 moreover, can also avoid electric connection portion 20 to occupy the space in too much first independent shell 110, is convenient for improve electricity storage module 100's energy density.

In some embodiments of the utility model, the energy storage system 1 has a communication connection 50, the communication connection 50 connecting the control module 200 and each of the power storage modules 100 in such a way as to be at least partially arranged outside the first independent housing 110 for controlling the power storage modules 100. This not only is convenient for control module 200 and every power storage module 100 to communicate and control it, is convenient for realize the sealed setting of first independent shell 110 moreover, can also avoid communication connection portion 50 to occupy the space in too much first independent shell 110, is convenient for improve power storage module 100's energy density.

Alternatively, the power storage module 100 includes a detection unit 150, the detection unit 150 is used to detect environmental information inside the first independent housing 110, and the communication connection 50 is integrally located outside the first independent housing 110 and connected to the detection unit 150 of each power storage module 100.

In some embodiments of the present invention, the plurality of power storage modules 100 includes the first power storage layer 10 arranged in a set direction, and the control module 200 is connected to at least one power storage module 100 in the first power storage layer 10. For example, the first energy storage layer 10 includes a plurality of vertically stacked, and the control module 200 is respectively in communication connection with a plurality of power storage modules 100 in each of the first energy storage layers 10 and is electrically connected with at least one power storage module 100. This facilitates the control module 200 to monitor the plurality of power storage modules 100 in the first energy storage layer 10.

In some alternative embodiments, the plurality of power storage modules 100 in the first energy storage layer 10 includes a first module row 11 extending in the first horizontal direction, and the control module 200 is provided at a middle portion or one end in the length direction of the first module row 11. 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. For example, 6 power storage modules 100 may be adjacent to each other with the control module 200 at one end of the first module row 11, or 3 power storage modules 100 may be adjacent to each other on one side of the control module 200 and the remaining 3 power storage modules 100 may be adjacent to each other on the opposite side of the control module 200. This facilitates the arrangement of the energy storage system 1 in a relatively narrow space.

In some embodiments, the control modules 200 and the first module row 11 form two first control groups, and the two first control groups are symmetrically arranged along the first horizontal direction. That is, one control module 200 and one first module row 11 form a first control group, two first control groups are arranged back to back, the side walls of adjacent sides of the two first control groups are adjacent to each other and the side walls of opposite sides are far away from each other and face outwards. For example, each first control group includes a first module row 11 composed of 5 power storage modules 100 and 1 control module 200 located at one end of the first module row 11, the 5 power storage modules 100 and the control modules 200 of the first control group are respectively arranged in one-to-one correspondence with the 5 power storage modules 100 and the control modules 200 of the second first control group, wherein the side walls of the first independent housings 110 of each power storage module 100 having the first openings are arranged in a direction away from each other and the side walls of the opposite sides are arranged in a manner of being attached to the side walls of the corresponding power storage modules 100, the side walls of the second independent housings 210 of the control modules 200 having the second openings are arranged in a direction away from each other and the side walls of the opposite sides are arranged in a manner of being attached to the side walls of the corresponding control modules 200.

In other optional embodiments, the first energy storage layer 10 further includes a second module row 12 extending along the second horizontal direction, the control module 200 is connected to one end of the first module row 11 and one end of the second module row 12, respectively, 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, the control module 200 is located at the joint of the first module row 11 and the second module row 12, 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 other embodiments of the present invention, the first energy storage layer 10 further includes a second module row 12 extending along the second horizontal direction, and the control module 200 is disposed in the middle of the first module row 11 and 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, the control module 200 is located at the joint of the first module row 11 and the second module row 12, 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, two adjacent control modules 200 are provided, and two second module rows 12 are provided, and two control modules 200 are respectively connected to two second module rows 12. 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. Meanwhile, one control module 200 may control one second module row 12 and one portion of the first module row 11, and another control module 200 may control another second module row 12 and another portion of the first module row 11, so as to reduce the control range of each control module 200 and improve the operating stability and reliability of the energy storage system 1.

In other embodiments of the present invention, the first energy storage layer 10 further includes a second module row 12 extending along the second horizontal direction, the first module row 11 is perpendicular to the second module row 12, and the control module 200 is disposed at a connection position of the first module row 11 and 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 the control module 200 is located at the connection of the first module row 11 and the second module row 12. 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 connected to the control module 200, respectively, and the other end extends linearly.

In other embodiments of the present invention, the first energy storage layer 10 includes a plurality of first module rows 11, the plurality of first module rows 11 are connected end to form a closed loop, and the control module 200 is located between any two energy storage modules 100. For example, the plurality of first module rows 11 of the first energy storage layer 10 may be formed in a triangle or a hexagon, and the control module 200 is located at one vertex of the triangle or the hexagon.

In some embodiments of the present invention, as shown in fig. 6, the electric storage module 100 has a fire extinguishing unit 140, the fire extinguishing unit 140 is provided to spray a fire extinguishing medium to the target electric storage module 100, and the fire extinguishing medium is confined by the independent closed space of the target electric storage module 100, thereby preventing the fire extinguishing medium from spreading to 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.

In some alternative examples, the fire extinguishing unit 140 is independently configured corresponding to each power storage module 100. Thus, each power storage module 100 can be provided with a respective fire extinguishing unit 140, and the control module 200 is in communication connection with each fire extinguishing unit 140 respectively to control the operating state of each fire extinguishing unit 140. So as to ensure the fire-fighting requirements of each power storage module 100 and improve the timeliness and pertinence of fire-extinguishing measures.

Alternatively, the fire extinguishing unit 140 may include a water spray and a gas spray, etc. The energy storage system 1 has a fire-fighting connection 40, the fire-fighting connection 40 being connected with the fire extinguishing unit 140 of each of the energy storage modules 100 in such a manner as to be at least partially arranged outside the first independent housing 110, to supply water and fire extinguishing gas to each of the energy storage modules 100. Further, the control module 100 has a fire extinguishing medium storage and/or a fire extinguishing medium source interface to which the fire fighting connection 40 is connected.

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

In some alternative examples, 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. The energy storage system 1 has a fire-fighting connection 40, the fire-fighting connection 40 being connected with the fire extinguishing unit 140 of each of the energy storage modules 100 in such a manner as to be at least partially arranged outside the first independent housing 110, to supply water and fire extinguishing gas to each of the energy storage modules 100.

In some embodiments of the utility model, as shown in fig. 1 and 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 first 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 first independent shell 110 is conveniently sealed, the cooling connecting part 30 can be prevented from occupying too much space in the first 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 first separate case 110, and the cooling connection 30 is integrally located outside the first 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 such a way that it is at least partially arranged outside the first 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 first 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 first 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 first 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 covering the electrical connection portion 20 and the cooling connection portion 30, which may be at least a part of the top cover 320.

In some specific examples, as shown in fig. 1, in the first energy storage layer 10, adjacent side walls of the first 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 first 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. 9, 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.

In some alternative embodiments, 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 the first 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. 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.

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.

Further, there are two second module rows 12, and the 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. 12, 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. 13, 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 ring. 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.

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

In the embodiment of the present invention, as shown in fig. 14, 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 utility model 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 utility model 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 utility model. 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 utility model, "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 utility model. 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 utility model 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 utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An energy storage system, comprising:

each power storage module comprises a first independent shell and a battery pack, the first independent shell is provided with an independent closed space, the battery packs are arranged in the independent closed spaces, the first independent shells of the adjacent power storage modules are independent of each other, and the power storage range of each power storage module is 300-600 kwh.

2. The energy storage system of claim 1, wherein each of the energy storage modules has an energy density in the range of 80-121 wh/L.

3. The energy storage system according to claim 1, wherein each of the energy storage modules is provided with a plurality of the battery packs, and in a state where the plurality of the battery packs are arranged in parallel and the plurality of the energy storage modules are arranged in series, the output voltage of the energy storage system is in a range of 24-500V;

the battery packs are arranged in series, the electricity storage modules are arranged in parallel, and the output voltage range of the energy storage system is 960-1600V.

4. The energy storage system of claim 1, wherein each of the energy storage modules is provided with a plurality of battery packs, and when the plurality of battery packs are arranged in parallel and the plurality of energy storage modules are arranged in series, the output current of the energy storage system ranges from 840 to 1400A;

the plurality of battery packs are arranged in series, the plurality of electricity storage modules are arranged in parallel, and the output current range of the energy storage system is 90-280A.

5. The energy storage system of claim 1, wherein the first self-contained enclosure comprises:

a first case body having a first opening at one side thereof;

the first door body is rotatably arranged on the first shell body to open and close the first opening, and when the first door body is closed, the first shell body and the first door body jointly define the independent closed space.

6. 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 first independent housing.

7. The energy storage system of claim 6, wherein the electrical storage module includes a terminal exposed from the first separate housing, the electrical connection being integrally located outside the first separate housing and connecting the terminal.

8. The energy storage system of claim 6, further comprising:

a control module including a second independent housing, wherein the first and second independent housings adjacent to each other are independent of each other, the control module being connected with each of the power storage modules through the electrical connection portion.

9. The energy storage system of claim 1, wherein the electric storage module has a fire extinguishing unit disposed to spray a fire extinguishing medium to a target electric storage module and the fire extinguishing medium is confined by the independent closed space 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.

10. 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 first self-contained housing to cool the electrical storage modules.

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