CN216213779U

CN216213779U - Container type energy storage system

Info

Publication number: CN216213779U
Application number: CN202122428926.9U
Authority: CN
Inventors: 郁辰; 刘思; 侯敏; 曹辉
Original assignee: Ruipu Energy Co Ltd; Shanghai Ruipu Energy Co Ltd
Current assignee: Shanghai Ruipuqing Innovative Energy Co Ltd; Rept Battero Energy Co Ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2022-04-05
Anticipated expiration: 2031-10-09

Abstract

The utility model provides a container type energy storage system which comprises a box body, an electrical bin, a battery bin and a liquid cooling unit bin, wherein the liquid cooling unit bin is arranged in the middle of the box body, the battery bin and the electrical bin are sequentially arranged on two sides of the liquid cooling unit bin in a symmetrical or asymmetrical mode respectively, the battery bin and the electrical bin are installed on the box body, the battery bin comprises a plurality of battery modules, a battery support is arranged inside the box body, the battery modules are installed on the battery support and are sequentially connected in series along the vertical direction to form battery branches, and the battery branches are sequentially arranged along the radial direction of the box body. The utility model can realize the flexible conversion of the electric quantity, the voltage and the multiplying power of the energy storage system by changing the basic configuration in the energy storage unit according to the actual application scene, can meet the product requirement without redesigning each unit of the energy storage system, reduces the workload of design, and has good universality and strong practicability.

Description

Container type energy storage system

Technical Field

The utility model relates to the technical field of lithium battery containers, in particular to a container type energy storage system.

Background

With the increasing maturity of energy storage technology, energy storage devices and energy storage systems are also rapidly developed, and the demands of the grid side and the user side on the energy storage power station are increasing. The energy storage device and the energy storage system are integrated in the container, so that the interference of the external environment on the energy storage device and the energy storage system can be avoided, and the normal operation of the energy storage device and the energy storage system is guaranteed.

Along with the development of the energy storage industry, the container energy storage unit based on the lithium ion battery group is being widely applied, because of market demand diversity, the use demands of various differences can not be compatible to traditional container energy storage unit, the commonality is poor, and traditional container energy storage unit structural configuration is unreasonable, has reduced the practicality of product.

Patent document CN213546400U discloses a high-voltage lithium battery energy storage system, which includes an energy storage container and a high-voltage lithium battery module, where the energy storage container includes a box body, an air conditioner and a fan; a plurality of mounting brackets are arranged in the box body; the air conditioner is arranged on the inner wall of the top of the box body and is opposite to the mounting bracket; an air outlet and an air inlet are formed in the side wall of the box body, the fan is arranged on the outer side of the box body, the air inlet side of the fan is communicated with the air outlet, the air outlet side of the fan is communicated with the air inlet, and the air inlet is opposite to an air suction opening of the air conditioner; the high-voltage lithium battery module is arranged on the mounting bracket, but the design does not give structural design giving consideration to various different models, and the universality is poor.

SUMMERY OF THE UTILITY MODEL

In view of the defects in the prior art, the utility model aims to provide a container type energy storage system.

The container type energy storage system provided by the utility model comprises a box body, an electrical bin, a battery bin and a liquid cooling unit bin;

the liquid cooling unit cabin is arranged in the middle of the box body, the battery cabin and the electric cabin are uniformly arranged on two sides of the liquid cooling unit cabin in a symmetrical or asymmetrical mode, and the battery cabin and the electric cabin are located in the box body.

Preferably, the battery compartment comprises a plurality of battery modules, and a battery bracket is arranged inside the box body;

a plurality of the battery modules are all installed on the battery support and along the corresponding positions in the vertical direction of the battery support, the battery modules are sequentially connected in series to form battery branches, and the battery branches are sequentially arranged in the radial direction of the box body.

Preferably, the number of the battery modules on each battery branch is the same;

and a fireproof material is arranged between the adjacent battery branches.

Preferably, the electrical cabin includes a plurality of battery management modules, and the battery management modules correspond to the battery branches one to one and are electrically connected with the corresponding battery branches.

Preferably, the liquid cooling unit cabin comprises a primary pipeline, a secondary pipeline, a tertiary pipeline and one or more liquid cooling units;

the primary pipeline comprises a primary pipeline water outlet pipe and a primary pipeline water return pipe, the secondary pipeline comprises a secondary pipeline water outlet pipe and a secondary pipeline water return pipe, the tertiary pipeline comprises a tertiary pipeline water outlet pipe and a tertiary pipeline water return pipe, one end of the primary pipeline water outlet pipe is connected with the liquid cooling unit, and the other end of the primary pipeline water outlet pipe is connected with the secondary pipeline water outlet pipe;

the one end of tertiary pipeline outlet pipe is connected the second grade pipeline outlet pipe, and the liquid cooling import that the battery module has is connected to the other end of tertiary pipeline outlet pipe, and the one end of the tertiary pipeline wet return of liquid cooling exit linkage that the battery module has, the second grade pipeline wet return is connected to the other end of tertiary pipeline wet return, and the second grade pipeline wet return passes through the one-level pipeline wet return and connects the liquid cooling unit, wherein, the one-level pipeline outlet pipe is located the bottom of battery compartment, and the one-level pipeline wet return is located the top of battery compartment.

Preferably, an exhaust device is arranged on the primary pipeline water return pipe.

Preferably, the connection point of the third-stage pipeline water outlet pipe and the second-stage pipeline water outlet pipe is lower than the connection point of the third-stage pipeline water return pipe and the second-stage pipeline water return pipe.

Preferably, an external unit is arranged at the top of the liquid cooling unit and used for discharging heat of the liquid cooling unit.

Preferably, the box body is respectively provided with doors corresponding to the electric bin, the battery bin and the liquid cooling unit bin, wherein the doors on the battery bin and the liquid cooling unit bin are opened towards the front side of the box body, and the end part of the box body is opened towards the electric bin.

Preferably, the electrical cabin further comprises a direct current bus module, an alternating current distribution module, a communication module and a fire fighting module.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model can realize the flexible conversion of the electric quantity, the voltage and the multiplying power of the energy storage system by changing the basic configuration in the energy storage unit according to the actual application scene, can meet the product requirement without redesigning each unit of the energy storage system, reduces the workload of design, and has good universality and strong practicability.

2. According to the utility model, the liquid cooling machine unit bin is arranged in the middle of the box body, and the battery bins are arranged on two sides of the box body, so that the liquid cooling effects of the battery modules on two sides are consistent, the problem of uneven flow distribution of cooling fluid of the battery modules in each branch caused by overlong pipelines is avoided, and the effect is better when the number of the battery bins is the same.

3. The arrangement of the electrical bin can ensure that the battery management module in the electrical bin is respectively connected with the battery branches in the adjacent battery bins, thereby preventing overlong lines and reducing the influence of the wiring harness impedance of each branch on the charging and discharging current.

4. The battery branches are separated by the fireproof material, so that the flame isolation after the thermal runaway of the battery is ensured, and the thermal runaway is prevented from spreading to the adjacent battery branches to the maximum extent.

5. The battery compartment is in modular design, and the output voltage of the energy storage system can be adjusted by increasing or reducing the serial connection quantity of the battery modules in the same branch; the number of the battery branches is increased or reduced, so that the available electric quantity of the energy storage system can be adjusted; increasing or reducing the device model selection specifications of each battery management module and each direct current confluence module in the electric bin, namely adjusting the output current of the energy storage system; the quantity of the liquid cooling units in the liquid cooling unit cabin is increased or reduced, the heat dissipation capacity of the energy storage system can be adjusted, and the energy storage system with different output power requirements can be better matched, so that the energy storage system is higher in design compatibility.

6. According to the utility model, the primary pipeline water outlet pipe is positioned at the bottom of the box body, the primary pipeline water return pipe is positioned at the top of the box body, for the same battery module, the connection point of the tertiary pipeline water outlet pipe and the secondary pipeline water outlet pipe is lower than the connection point of the tertiary pipeline water return pipe and the secondary pipeline water return pipe, the two points ensure that the water flow direction output by the liquid cooling unit can gradually rise along the vertical direction, the gas in the pipeline can be discharged outwards through the exhaust device arranged on the top primary water return pipe, and the phenomenon that the pipeline pressure is too high due to the fact that the gas cannot be discharged and the effect of a cooling medium is influenced is avoided.

7. According to the utility model, each chamber is provided with a door, wherein the battery chamber door and the liquid cooling unit chamber door are opened towards one side of the box body, and the electric chamber door is opened towards two ends of the box body, so that the space utilization rate of the rear part of the electric chamber can be improved.

8. The rear side of the box body is not provided with the bin door, so that the two box bodies can be arranged in a back-to-back mode, and the floor area of the box bodies during arrangement is reduced.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic side view of example 1 of the present invention;

FIG. 2 is a schematic side view of embodiment 2 of the present invention;

fig. 3 is a schematic structural view of a liquid cooling unit warehouse according to the present invention.

The figures show that:

first-stage pipeline water return pipe 42 of box body 10

Water outlet pipe 43 of secondary pipeline of electric bin 20

Liquid cooling unit 44 of battery compartment 30

Battery module 31 secondary pipeline return pipe 45

Three-stage pipeline water outlet pipe 46 of battery bracket 32

Fireproof material 33 three-stage pipeline water return pipe 47

Liquid cooling unit 40 exhaust 48

First-stage pipeline water outlet pipe 41

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the utility model, but are not intended to limit the utility model in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the utility model. All falling within the scope of the present invention.

Example 1:

the utility model provides a container type energy storage system which comprises a box body 10, an electrical cabin 20, a battery cabin 30 and a liquid cooling unit cabin 40, wherein the liquid cooling unit cabin 40 is arranged in the middle of the box body 10, and the battery cabin 30 and the electrical cabin 20 are respectively arranged on two sides of the liquid cooling unit cabin 40 in a symmetrical or asymmetrical mode.

Further, the battery compartment 30 and the electrical compartment 20 are both installed on the box body 10, preferably, the battery compartments 30 installed on both sides of the liquid cooling unit compartment 40 are symmetrically arranged with respect to the liquid cooling unit compartment 40, and the electrical compartments 20 installed on both sides of the liquid cooling unit compartment 40 are symmetrically arranged with respect to the liquid cooling unit compartment 40, as shown in fig. 1. The battery bins 30 with the same number are arranged on two sides, so that the liquid cooling effects of the battery modules 31 on the two sides are consistent, and the problem of uneven flow distribution of the battery modules in each branch caused by overlong pipelines is solved.

The battery compartment 30 includes a plurality of battery modules 31, a battery support 32 is disposed inside the box body 10, the plurality of battery modules 31 are all mounted on the battery support 32, and the battery modules 31 at corresponding positions along the vertical direction of the battery support 32 are sequentially connected in series to form battery branches, the plurality of battery branches are sequentially arranged along the radial direction of the box body 10, in a preferred embodiment, the number of the battery modules 31 on each battery branch is the same; and a fireproof material 33 is arranged between the adjacent battery branches, so that the flame isolation after the thermal runaway of the battery is ensured, and the thermal runaway is prevented from spreading to the adjacent battery branches to the maximum extent.

In practical application, the number of the battery branches can be flexibly designed according to practical application scenes so as to meet the requirements of practical products.

The electrical bin 20 comprises a plurality of battery management modules, the battery management modules correspond to the battery branches one to one and are electrically connected with the corresponding battery branches, and the battery management modules are connected with the battery branches through cable signals and can manage the battery branches. The electrical cabin 20 further includes a dc bus module, an ac distribution module, a communication module, and a fire fighting module to perform other functions.

An external unit is disposed on the top of the liquid cooling unit 44, and is used for discharging heat of the liquid cooling unit 44, and preferably, the external unit discharges heat through other circulating manners such as an exhaust system. According to the utility model, only the exhaust system is arranged at the top of the liquid cooling unit 44, so that heat is exhausted from the top of the liquid cooling unit 44, the structure is simple, and the defects of complex structure and large occupied space of a distributed external unit are avoided.

Dispose the correspondence on the box 10 respectively electric storehouse 20, battery compartment 30, liquid cooling unit storehouse 40's door, wherein, door court on battery compartment 30, the liquid cooling unit storehouse 40 the front side is opened to the box 10, belongs to and is opening the door setting, and operating personnel stands promptly and can open the door in the front side is just opened to the box 10, electric storehouse 20 is opened towards the tip of box 10, and the door setting is held at the both sides of box 10 promptly, belongs to and opens the door, and the setting of door is conveniently maintained, and does benefit to the heat dissipation to a certain extent, and occupation space is few.

The liquid cooling unit 40 comprises a first-stage pipeline, a second-stage pipeline, a third-stage pipeline and one or more liquid cooling units 44, the first-stage pipeline comprises a first-stage pipeline water outlet pipe 41 and a first-stage pipeline water return pipe 42, the second-stage pipeline comprises a second-stage pipeline water outlet pipe 43 and a second-stage pipeline water return pipe 45, the third-stage pipeline comprises a third-stage pipeline water outlet pipe 46 and a third-stage pipeline water return pipe 47, one end of the first-stage pipeline water outlet pipe 41 is connected with the liquid cooling units 44, the other end of the first-stage pipeline water outlet pipe 41 is connected with the second-stage pipeline water outlet pipe 43, one end of the third-stage pipeline water outlet pipe 46 is connected with the second-stage pipeline water outlet pipe 43, the other end of the third-stage pipeline water outlet pipe 46 is connected with the liquid cooling inlet of the battery module 31, the liquid cooling outlet of the battery module 31 is connected with one end of the third-stage pipeline water return pipe 47, and the other end of the third-stage pipeline water return pipe 47 is connected with the second-stage pipeline water return pipe 45, second grade pipeline wet return 45 passes through one-level pipeline wet return 42 and connects liquid cooling unit 44, wherein, one-level pipeline outlet pipe 41 is located the bottom of battery compartment 30, and one-level pipeline wet return 42 is located the top of battery compartment 30.

An exhaust device 48 is arranged on the primary pipeline water return pipe 42, and preferably adopts a ball valve, so that gas in the pipeline can be exhausted, the heat exchange effect is prevented from being influenced by the gas, the internal pressure is prevented from being abnormal, and the like.

As shown in fig. 3, a connection point a of the third-stage pipeline water outlet pipe 46 and the second-stage pipeline water outlet pipe 43 is lower than a connection point b of the third-stage pipeline water return pipe 47 and the second-stage pipeline water return pipe 45, so that the liquid cooling flow channel of the battery module 31 can be filled with fluid, and a good cooling effect can be achieved.

Example 2:

this example is a modification of example 1.

In this embodiment, as shown in fig. 2, the battery compartment 30 and the electrical compartment 20 on both sides of the liquid cooling unit compartment 40 are asymmetric with respect to the liquid cooling unit compartment 40, and the effect of the present invention can also be achieved.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the utility model. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. A container type energy storage system is characterized by comprising a box body (10), an electrical bin (20), a battery bin (30) and a liquid cooling unit bin (40);

liquid cooling unit storehouse (40) are arranged middle part in box (10), the both sides of liquid cooling unit storehouse (40) are all arranged with symmetry or asymmetric mode battery compartment (30) and electric storehouse (20), and battery compartment (30), electric storehouse (20) all are located in box (10).

2. The container type energy storage system according to claim 1, wherein the battery compartment (30) comprises a plurality of battery modules (31), and a battery bracket (32) is arranged inside the box body (10);

the battery modules (31) are all installed on the battery support (32) and are arranged along corresponding positions in the vertical direction of the battery support (32), the battery modules (31) are sequentially connected in series to form battery branches, and the battery branches are sequentially arranged in the radial direction of the box body (10).

3. The container-type energy storage system according to claim 2, wherein the number of battery modules (31) on each battery branch is the same;

and a fireproof material (33) is arranged between the adjacent battery branches.

4. The container-type energy storage system according to claim 2, wherein the electrical bin (20) comprises a plurality of battery management modules, and the battery management modules correspond to the battery branches one to one and are electrically connected with the corresponding battery branches.

5. The container-based energy storage system of claim 2, wherein the liquid cooled unit magazine (40) comprises primary, secondary, tertiary piping and one or more liquid cooled units (44);

the primary pipeline comprises a primary pipeline water outlet pipe (41) and a primary pipeline water return pipe (42), the secondary pipeline comprises a secondary pipeline water outlet pipe (43) and a secondary pipeline water return pipe (45), the tertiary pipeline comprises a tertiary pipeline water outlet pipe (46) and a tertiary pipeline water return pipe (47), one end of the primary pipeline water outlet pipe (41) is connected with the liquid cooling unit (44), and the other end of the primary pipeline water outlet pipe (41) is connected with the secondary pipeline water outlet pipe (43);

second grade pipeline outlet pipe (43) is connected to the one end of tertiary pipeline outlet pipe (46), and the liquid cooling that battery module (31) had is imported to the other end connection of tertiary pipeline outlet pipe (46), and the one end of the liquid cooling exit linkage tertiary pipeline wet return (47) that battery module (31) had, secondary pipeline wet return (45) are connected to the other end of tertiary pipeline wet return (47), and secondary pipeline wet return (45) are connected through one-level pipeline wet return (42) liquid cooling unit (44), wherein, one-level pipeline outlet pipe (41) are located the bottom in battery compartment (30), and one-level pipeline wet return (42) are located the top in battery compartment (30).

6. A container type energy storage system according to claim 5, wherein the primary pipeline return water pipe (42) is provided with an exhaust device (48).

7. A container type energy storage system according to claim 5, wherein the connection point of the tertiary pipeline water outlet pipe (46) and the secondary pipeline water outlet pipe (43) is lower than the connection point of the tertiary pipeline water return pipe (47) and the secondary pipeline water return pipe (45).

8. A container type energy storage system according to claim 5, wherein an external unit is provided on top of the liquid cooling unit (44) for discharging heat from the liquid cooling unit (44).

9. The container type energy storage system according to claim 1, wherein doors corresponding to the electric bin (20), the battery bin (30) and the liquid cooling unit bin (40) are respectively arranged on the box body (10), wherein the doors on the battery bin (30) and the liquid cooling unit bin (40) are opened towards the front side of the box body (10), and the electric bin (20) is opened towards the end of the box body (10).

10. The container-based energy storage system of claim 4, wherein the electrical bin (20) further comprises a DC sink module, an AC distribution module, a communication module, and a fire protection module.