An energy storage device

Abstract

The application discloses an energy storage device and belongs to the technical field of energy storage. By decoupling the energy storage bus electrical cabinet according to the functional areas, each module is independently arranged, that is, the direct current bus room can be installed in the auxiliary equipment arrangement area, the UPS backup battery room is hung on the side wall of the energy storage battery cabin, and the alternating current power distribution room is installed on the back of the battery cabin door. In this way, a larger space in the width direction of the energy storage battery cabin can be saved for the auxiliary components, the auxiliary components can be optimally designed in shape, that is, the auxiliary components with a larger width and a smaller thickness can be adopted to reduce the depth of the auxiliary equipment arrangement area, a larger space is reserved for the energy storage battery arrangement area for battery arrangement, and the battery capacity that can be accommodated by a single battery cabin is improved.

Description

Technical Field

[0001] This application relates to the field of energy storage technology, and in particular to an energy storage device. Background Technology

[0002] Currently, medium and large-scale energy storage power stations basically adopt containerized battery compartments. The interior of battery compartment 1 is as follows: Figure 1 As shown, the area is divided into a battery placement area and an auxiliary equipment placement area. Battery placement area 10 is mainly used for arranging energy storage batteries and their associated high-voltage boxes; auxiliary equipment placement area 20 is mainly used for installing energy storage combiner cabinets 21, liquid cooling units 22, and fire-fighting equipment 23, etc. The energy storage combiner cabinet 21, in its traditional structure, mainly adopts... Figure 2 As shown, it is divided into DC combiner room 211, AC power distribution room 212, UPS backup power room 213, etc.

[0003] With the rapid development of the battery energy storage industry, the battery capacity within a single energy storage battery compartment is constantly increasing, leading to a continuous increase in battery volume requirements. This necessitates further reduction in the size of the auxiliary equipment layout area to free up more space for battery placement and accommodate more batteries. Existing busbar electrical cabinet solutions combine several modules with different functions, resulting in large individual cabinets that compress the layout space for liquid cooling units and fire protection systems, hindering the optimization of energy storage battery compartment size reduction. Utility Model Content

[0004] This application provides an energy storage device. It solves the technical problem in the prior art where the combiner cabinet occupies a large space in the battery compartment, hindering the reduction and optimization of the energy storage battery compartment size. The technical solution is as follows: On the one hand, an energy storage device is provided, the energy storage device comprising: an energy storage battery compartment, an energy storage combiner electrical cabinet, auxiliary components, and a battery compartment door; The energy storage battery compartment has a battery arrangement area and an auxiliary equipment arrangement area arranged side by side, and the battery arrangement area is used to place the energy storage battery; The energy storage combiner cabinet has a DC combiner compartment, a UPS backup battery compartment, and an AC distribution compartment. The DC combiner compartment and the auxiliary components are all installed in the auxiliary equipment layout area. The UPS backup battery compartment is installed in the auxiliary equipment layout area and is mounted on the side wall of the energy storage battery compartment. The AC distribution compartment is installed on the back of the battery compartment door, and the battery compartment door is movably connected to the energy storage battery compartment.

[0005] Optionally, the auxiliary components include a liquid cooling unit, which is stacked with the DC combiner chamber along the height direction of the energy storage battery compartment.

[0006] Optionally, the DC combiner chamber is installed between the liquid cooler unit and the bottom wall of the energy storage battery compartment.

[0007] Optionally, the auxiliary components also include a fire tank, which is distributed on the side of the liquid cooler unit and the DC combiner room.

[0008] Optionally, the auxiliary equipment layout area is divided into a first area and a second area arranged side by side along the width direction of the energy storage battery compartment. The liquid cooling unit and DC combiner room are installed in the first area; the fire tank is installed in the second area.

[0009] Optionally, the width of the first region is greater than the width of the second region.

[0010] Optionally, with the battery compartment door and energy storage battery compartment closed, the AC power distribution room is located to the side of the liquid chiller unit and DC combiner room.

[0011] Optionally, the back of the battery compartment door has a mounting groove, and at least a portion of the AC power distribution compartment is mounted in the mounting groove.

[0012] The beneficial effects of the technical solutions provided in this application include at least the following: By decoupling the energy storage combiner cabinet into modules according to functional areas, each module can be arranged independently. This allows the DC combiner compartment to be installed in the auxiliary equipment area, the UPS backup battery compartment to be mounted on the side wall of the energy storage battery compartment, and the AC distribution compartment to be installed on the back of the battery compartment door. This saves significant space along the width of the energy storage battery compartment for auxiliary components, enabling optimized design in their shape. For example, wider and thinner auxiliary components can be used to reduce the depth of the auxiliary equipment area, reserving more space for battery placement and increasing the battery capacity that a single battery compartment can hold. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a structural schematic diagram of an energy storage battery compartment provided in related technologies; Figure 2 This is a structural schematic diagram of a busbar electrical cabinet provided in related technologies; Figure 3 This is a schematic diagram of the structure of an energy storage device provided in an embodiment of this application.

[0015] Among them, there are: energy storage battery compartment 100, energy storage combiner electrical cabinet 200, auxiliary components 300, battery compartment door 400, battery arrangement area 101, auxiliary equipment arrangement area 102, DC combiner room 201, UPS backup battery room 202, AC power distribution room 203, liquid cooling unit 301, and fire tank 302.

[0016] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0019] Please refer to Figure 3 , Figure 3 This is a schematic diagram of the structure of an energy storage device provided in an embodiment of this application. The energy storage device may include: an energy storage battery compartment 100, an energy storage combiner electrical cabinet 200, auxiliary components 300, and a battery compartment door 400.

[0020] The energy storage battery compartment 100 in the energy storage device may have a battery arrangement area 101 and an auxiliary equipment arrangement area 102 arranged side by side, wherein the battery arrangement area 101 is used to place the energy storage battery.

[0021] The energy storage combiner cabinet 200 in the energy storage device may have a DC combiner compartment 201, a UPS backup battery compartment 202, and an AC distribution compartment 203. The DC combiner compartment 201 and auxiliary components 300 can both be installed in the auxiliary equipment arrangement area 102. The UPS backup battery compartment 202 can be installed within the auxiliary equipment arrangement area 102 and mounted on the side wall of the energy storage battery compartment 100. The AC distribution compartment 203 can be installed on the back of the battery compartment door 400, which is movably connected to the energy storage battery compartment 100 to open or close it. For example, the battery compartment door 400 can be a single-row door or a double-row door, and the battery compartment door 400 can be hinged to the energy storage battery compartment 100.

[0022] Here, the DC combiner room 201 primarily functions to combine the DC currents of the batteries in each cluster within the battery arrangement area 101, and also serves as a window for connection to the outside. The AC distribution room 203 mainly integrates AC power distribution, disconnection and protection of each power branch, control circuit of the energy storage master control device, and 24V power conversion device, serving as an AC power distribution and communication module. The UPS backup power room 202 is mainly used for the installation of backup power and its control module, providing backup power for the entire energy storage system. Functionally, the modules have little correlation. The DC combiner room 201 and the AC distribution room 203 are either not connected or connected by a few simple signal lines; the AC distribution room 203 and the UPS backup power room 202 are mainly connected by a few power lines and signal lines.

[0023] In this embodiment, the energy storage combiner cabinet 200 is modularly decoupled according to functional areas, with each module arranged independently. Specifically, the DC combiner room 201 can be installed in the auxiliary equipment arrangement area 102, the UPS backup battery room 202 can be mounted on the side wall of the energy storage battery compartment 100, and the AC distribution room 203 can be installed on the back of the battery compartment door 400. This saves a significant amount of space along the width D of the energy storage battery compartment 100 for the auxiliary components 300. The auxiliary components 300 can be optimized in shape, using a wider and thinner auxiliary component 300 to reduce the depth of the auxiliary equipment arrangement area 102, reserving more space for battery arrangement in the energy storage battery arrangement area 101, and increasing the battery capacity that a single battery compartment can hold.

[0024] In summary, this application provides an energy storage device that may include: an energy storage battery compartment, an energy storage combiner cabinet, auxiliary components, and a battery compartment door. By decoupling the energy storage combiner cabinet into modules according to functional areas, each module can be arranged independently. Specifically, the DC combiner compartment can be installed in the auxiliary equipment area, the UPS backup battery compartment can be mounted on the side wall of the energy storage battery compartment, and the AC power distribution compartment can be installed on the back of the battery compartment door. This saves a significant amount of space along the width of the energy storage battery compartment for the auxiliary components. The auxiliary components can be optimized in shape, i.e., wider and thinner auxiliary components can be used to reduce the depth of the auxiliary equipment area, reserving more space for battery placement and increasing the battery capacity that a single battery compartment can hold.

[0025] Optional, such as Figure 3 As shown, the auxiliary component 300 in the energy storage device may include a liquid cooler unit 301, which can be stacked with the DC combiner chamber 201 along the height direction H of the energy storage battery compartment 100. Here, the liquid cooler unit 301 can be flattened, and by stacking the liquid cooler unit 301 with the DC combiner chamber 201, the space of the auxiliary equipment arrangement area 102 along the height direction H of the energy storage battery compartment 100 can be fully utilized, thereby reducing the depth of the auxiliary equipment arrangement area 102 and reserving more space for battery arrangement in the energy storage battery arrangement area 101. For example, the DC combiner chamber 201 can be installed between the liquid cooler unit 301 and the bottom wall of the energy storage battery compartment 100.

[0026] In this application, as Figure 3 As shown, the auxiliary components 300 in the energy storage device may also include a fire tank 302, which may be distributed on the side of the liquid-cooled unit 301 and the DC combiner room 201. Here, the UPS backup battery compartment 202 may be mounted on the side wall of the energy storage battery compartment 100 adjacent to the fire tank 302.

[0027] Optional, such as Figure 3 As shown, the auxiliary equipment arrangement area 102 in the energy storage battery compartment can be divided into a first area k1 and a second area k2 arranged side by side along the width direction D of the energy storage battery compartment 100. The liquid cooling unit 301 and the DC combiner room 201 can be installed in the first area k1, and the fire tank 302 can be installed in the second area k2. In this way, the liquid cooling unit 301 and the DC combiner room 201 are arranged in the first area k1 to make full use of the space in the first area k1, and the fire tank 302 can be arranged in the second area k2. Here, the width of the first area k1 can be greater than the width of the second area k2.

[0028] In this embodiment, when the battery compartment door 400 and the energy storage battery compartment 100 are closed, the AC power distribution room 203 in the energy storage combiner cabinet can be located on the side of the liquid chiller unit 301 and the DC combiner room 201. That is, the AC power distribution room 203 can change position as the position of the battery compartment door 400 changes. If the battery compartment door 400 is closed, the AC power distribution room 203 can be located within the auxiliary equipment arrangement area 102.

[0029] For example, the back of the battery compartment door 400 may have a mounting groove (not shown in the figure), in which at least a portion of the AC power distribution compartment 203 is mounted. This allows for a thicker battery compartment door 400, and by providing a mounting groove on the back of the battery compartment door 400, the AC power distribution compartment 203 can be mounted, further saving space for components installed in the auxiliary equipment arrangement area 102.

[0030] In summary, this application provides an energy storage device that may include: an energy storage battery compartment, an energy storage combiner cabinet, auxiliary components, and a battery compartment door. By decoupling the energy storage combiner cabinet into modules according to functional areas, each module can be arranged independently. Specifically, the DC combiner compartment can be installed in the auxiliary equipment area, the UPS backup battery compartment can be mounted on the side wall of the energy storage battery compartment, and the AC power distribution compartment can be installed on the back of the battery compartment door. This saves a significant amount of space along the width of the energy storage battery compartment for the auxiliary components. The auxiliary components can be optimized in shape, i.e., wider and thinner auxiliary components can be used to reduce the depth of the auxiliary equipment area, reserving more space for battery placement and increasing the battery capacity that a single battery compartment can hold.

[0031] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0032] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An energy storage device, characterized in that, include: Energy storage battery compartment, energy storage combiner cabinet, auxiliary components and battery compartment door; The energy storage battery compartment has a battery arrangement area and an auxiliary equipment arrangement area arranged side by side, and the battery arrangement area is used to place the energy storage battery; The energy storage combiner cabinet has a DC combiner compartment, a UPS backup battery compartment, and an AC distribution compartment. The DC combiner compartment and the auxiliary components are all installed in the auxiliary equipment layout area. The UPS backup battery compartment is installed in the auxiliary equipment layout area and is mounted on the side wall of the energy storage battery compartment. The AC distribution compartment is installed on the back of the battery compartment door, and the battery compartment door is movably connected to the energy storage battery compartment.

2. The energy storage device according to claim 1, characterized in that, The auxiliary components include a liquid cooling unit, which is stacked with the DC combiner chamber along the height direction of the energy storage battery compartment.

3. The energy storage device according to claim 2, characterized in that, The DC combiner chamber is installed between the liquid cooler unit and the bottom wall of the energy storage battery compartment.

4. The energy storage device according to claim 2 or 3, characterized in that, The auxiliary components also include fire tanks, which are distributed on the side of the liquid chiller and the DC combiner room.

5. The energy storage device according to claim 4, characterized in that, The auxiliary equipment layout area is divided into a first area and a second area arranged side by side along the width direction of the energy storage battery compartment. The liquid cooling unit and DC combiner room are installed in the first area; the fire tank is installed in the second area.

6. The energy storage device according to claim 5, characterized in that, The width of the first region is greater than the width of the second region.

7. The energy storage device according to claim 2, characterized in that, With the battery compartment door and energy storage battery compartment closed, the AC power distribution room is located to the side of the liquid chiller unit and DC combiner room.

8. The energy storage device according to any one of claims 1-3 and 5-7, characterized in that, The back of the battery compartment door has a mounting groove, and at least a portion of the AC power distribution room is installed in the mounting groove.

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