An energy storage cabinet and energy storage equipment

Abstract

This application relates to the field of energy storage equipment technology, and particularly to an energy storage cabinet and energy storage equipment. The energy storage cabinet includes a cabinet, battery modules, and a power distribution module. The cabinet is equipped with a battery compartment and an electrical compartment. The battery modules are located in the battery compartment. The power distribution module is located in the electrical compartment and includes a housing, high-voltage components, and an energy storage converter. The housing contains the power distribution compartment, and the high-voltage components and energy storage converter are located in the power distribution compartment. The battery modules, high-voltage components, and energy storage converter are electrically connected. By placing the high-voltage components and energy storage converter inside the housing to form the power distribution module, this application can compress the volume of the high-voltage components and energy storage converter, reduce the space occupied by them, and integrate the components of the high-voltage components and energy storage converter. This can shorten and reduce the connection cables between the high-voltage components and energy storage converter, simplifying the connection between them and facilitating installation and maintenance.

Description

Technical Field

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

[0002] The function of an energy storage cabinet is to store energy. An energy storage cabinet typically includes a cabinet and battery modules, energy storage converters, and high-voltage components installed inside the cabinet. The battery modules are used to provide electrical energy, the energy storage converters are used to assist in the efficient conversion of electrical energy, and the high-voltage components are used to assist in the safe transmission of electrical energy.

[0003] In existing energy storage cabinets, the energy storage converter and high-voltage components are usually separate, occupying a lot of space in the cabinet. Moreover, the two areas are far apart, requiring additional cables to connect them, which makes the connection between the two complicated and inconvenient for installation and maintenance. Utility Model Content

[0004] In view of the above problems, this application provides an energy storage cabinet and energy storage device that overcomes or at least partially solves the above problems.

[0005] According to one aspect of this application, an energy storage cabinet is provided, including a cabinet, battery modules, and a power distribution module. The cabinet is provided with a battery compartment and an electrical compartment. The battery modules are disposed in the battery compartment. The power distribution module is disposed in the electrical compartment, and the power distribution module includes a housing, high-voltage components, and an energy storage converter. The housing is provided with the power distribution compartment, and the high-voltage components and the energy storage converter are disposed in the power distribution compartment. The battery modules, high-voltage components, and energy storage converter are electrically connected.

[0006] In some embodiments, the enclosure includes a first plate and a second plate disposed opposite to each other. The first plate is provided with a first vent, and the second plate is provided with a second vent. The first vent, the power distribution compartment, and the second vent form a power distribution duct.

[0007] In some embodiments, the power distribution module further includes a flow guide disposed in the power distribution compartment, the flow guide being located between the first vent and the second vent.

[0008] In some embodiments, along the direction from the first vent to the second vent, the overlapping area of ​​the high-voltage component and the power distribution duct is S1, and the overlapping area of ​​the energy storage converter and the power distribution duct is S2, where S2>S1.

[0009] In some embodiments, the surface of the high-voltage component is provided with heat dissipation fins. And / or, the surface of the energy storage converter is provided with heat dissipation fins.

[0010] In some embodiments, the high-voltage assembly includes a high-voltage module and a low-voltage module, and an insulating plate is disposed inside the housing between the high-voltage module and the low-voltage module to isolate the high-voltage module and the low-voltage module.

[0011] In some embodiments, the insulating board includes a resin layer and a metal mesh embedded in the resin layer.

[0012] In some embodiments, the enclosure includes a first part and a second part connected together, with high-voltage components located in the first part and an energy storage converter located in the second part. The energy storage cabinet also includes a fire-fighting gas cylinder disposed in the electrical compartment, with the nozzle of the fire-fighting gas cylinder facing the second part.

[0013] In some embodiments, the nozzle of the fire extinguishing gas cylinder is provided with a diffuser plate, which has multiple holes to divide and refine the extinguishing gas sprayed from the fire extinguishing gas cylinder.

[0014] According to one aspect of this application, an energy storage device is provided, including the energy storage cabinet described above.

[0015] The beneficial effects of this application are as follows: Unlike existing technologies, this application provides an energy storage cabinet including a cabinet, battery modules, and a power distribution module. The battery modules are used to provide electrical energy. The cabinet is equipped with a battery compartment and an electrical compartment. The battery modules are located in the battery compartment, and the power distribution module is located in the electrical compartment, which can reduce the mutual interference between the battery modules and the power distribution module. The power distribution module includes a housing, high-voltage components, and an energy storage converter. The housing is equipped with a power distribution compartment, and the high-voltage components and the energy storage converter are located in the power distribution compartment. The battery modules, high-voltage components, and energy storage converter are electrically connected. The high-voltage components are used to realize the transmission, distribution, and protection of high-voltage electrical energy, and the energy storage converter is used to realize bidirectional conversion between DC and AC electrical energy. This application compresses the volume of high-voltage components and energy storage converters by placing them inside a cabinet to form a power distribution module, thereby reducing the space occupied by the high-voltage components and energy storage converters. The components of the high-voltage components and energy storage converters can be integrated together, and the connecting cables between the high-voltage components and energy storage converters can be shortened and reduced to simplify the connection between the two, which is beneficial for installation and maintenance. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this application, the drawings used in this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the energy storage cabinet with the cabinet door open according to an embodiment of this application; Figure 2 This is a schematic diagram of the power distribution module provided in the embodiments of this application; Figure 3 yes Figure 2 Sectional view along AA; Figure 4 yes Figure 2 A cross-sectional view along BB; Figure 5 This is a schematic diagram of the structure of the insulating plate provided in the embodiment of this application; Figure 6 This is a schematic diagram of the power distribution module and fire-fighting gas tank provided in the embodiments of this application; Figure 7 This is a schematic diagram of the structure of the fire-fighting air tank and diffuser plate provided in the embodiments of this application; Figure 8 This is a structural schematic diagram of the electrical compartment, power distribution module, and fire protection components provided in the embodiments of this application.

[0018] The reference numerals in the detailed embodiments are as follows: 100. Energy storage cabinet; 1. Cabinet; 11. Cabinet body; 111. Battery compartment; 112. Electrical compartment; 12. Cabinet door; 13. Partition; 2. Battery module; 31. Liquid cooling plate; 4. Electrical module; 41. Power distribution module; 411. Enclosure; 4111. Power distribution compartment; 411a. Power distribution air duct; 4112. First plate; 411b. First vent; 4113. Second plate; 411c. Second vent; 4114. Insulation 4115. Resin layer; 4116. Metal mesh; 4117. First part; 4118. Second part; 412. High voltage component; 4121. High voltage module; 4122. Low voltage module; 413. Energy storage converter; 414. Flow guide; 415. Heat sink fins; 42. Fire protection component; 421. Fire air tank; 4211. Nozzle; 422. Diffuser; 423. Smoke sensor; 424. Temperature sensor. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0021] In existing energy storage cabinets, the energy storage converter and high-voltage components are usually separate, occupying a lot of space in the cabinet. Moreover, the two areas are far apart, requiring additional cables to connect them, which makes the connection between the two complicated and inconvenient for installation and maintenance.

[0022] This application compresses the volume of high-voltage components and energy storage converters by placing them inside a cabinet to form a power distribution module, thereby reducing the space occupied by the high-voltage components and energy storage converters. The components of the high-voltage components and energy storage converters can be integrated together, and the connecting cables between the high-voltage components and energy storage converters can be shortened and reduced to simplify the connection between the two, which is beneficial for installation and maintenance.

[0023] To facilitate readers' understanding of the concept of this utility model, the specific structure of the energy storage cabinet is described below: Please see Figure 1-3 The energy storage cabinet 100 includes a cabinet 1, a battery module 2, and a power distribution module 41. The battery module 2 is used to provide electrical energy. The cabinet 1 is equipped with a battery compartment 111 and an electrical compartment 112. The battery module 2 is located in the battery compartment 111, and the power distribution module 41 is located in the electrical compartment 112, which can reduce the mutual interference between the battery module 2 and the power distribution module 41. The power distribution module 41 includes a housing 411, a high-voltage component 412, and an energy storage converter 413. The housing 411 is equipped with the power distribution compartment 4111, and the high-voltage component 412 and the energy storage converter 413 are located in the power distribution compartment 4111. The battery module 2, the high-voltage component 412, and the energy storage converter 413 are electrically connected. The high-voltage component 412 is used to realize the transmission, distribution, and protection of high-voltage electrical energy, and the energy storage converter 413 is used to realize the bidirectional conversion of DC power and AC power. This application combines the high-voltage component 412 and the energy storage converter 413 within the enclosure 411 to form a power distribution module 41. This reduces the volume of the high-voltage component 412 and the energy storage converter 413, thus minimizing the space they occupy. The components of the high-voltage component 412 and the energy storage converter 413 can be integrated, shortening and reducing the number of connecting cables between them. This simplifies the connection between the two components and facilitates installation and maintenance.

[0024] In some embodiments, a partition 13 is provided inside the cabinet 1, which divides the space inside the cabinet 1 into a battery compartment 111 and an electrical compartment 112.

[0025] In some embodiments, the cabinet 1 includes a cabinet body 11 and a cabinet door 12. The battery compartment 111 and the electrical compartment 112 are located in the cabinet body 11. The cabinet door 12 is rotatably disposed in the cabinet body 11 to open and close the battery compartment 111 and the electrical compartment 112. The edge of the cabinet door 12 is provided with a double-layer sealing ring (not shown) to improve the sealing effect between the cabinet door 12 and the cabinet body 11.

[0026] In some embodiments, the battery module 2 includes a housing and a plurality of battery packs disposed within the housing. A liquid cooling plate 31 is provided at the bottom of the housing to dissipate heat from the battery module 2.

[0027] In some embodiments, the energy storage cabinet 100 includes an electrical module 4, which is disposed in the electrical compartment 112. The electrical module 4 includes a power distribution module 41 and a fire-fighting component 42, which is used to extinguish fires on the power distribution module 41.

[0028] In some embodiments, the enclosure 411 is made of die-cast aluminum to give it better strength and heat dissipation.

[0029] In some embodiments, the enclosure 411 includes a first plate 4112 and a second plate 4113 disposed opposite to each other. The first plate 4112 is provided with a first vent 411b, and the second plate 4113 is provided with a second vent 411c. The first vent 411b, the electrical distribution compartment 4111, and the second vent 411c form an electrical distribution duct 411a, which facilitates gas flow. The first vent 411b and the second vent 411c correspond to each other, and there can be multiple first vents 411b and second vents 411c.

[0030] In some embodiments, the power distribution module 41 further includes a flow guide 414 disposed in the power distribution compartment 4111, located between the first vent 411b and the second vent 411c. The flow guide 414 can divide the airflow into multiple parallel airflows, making the surface temperature distribution of the high-voltage component 412 and the energy storage converter 413 more uniform and avoiding local overheating. The flow guide 414 can be a flow guide plate, a flow guide shroud, a flow guide blade, or a flow guide grille. In some embodiments, the flow guide 414 is provided with multiple holes, which can divide the airflow into multiple parallel airflows after the airflow passes through the flow guide 414.

[0031] In some embodiments, along the direction from the first vent 411b to the second vent 411c, the overlapping area of ​​the high-voltage component 412 and the power distribution duct 411a is S1, and the overlapping area of ​​the energy storage converter 413 and the power distribution duct 411a is S2, where S2>S1. This allows the energy storage converter 413 region to obtain stronger heat dissipation capacity than the high-voltage component 412 region, in order to meet the heat dissipation requirements of the energy storage converter 413 under high power density.

[0032] In some embodiments, the surface of the high-voltage component 412 is provided with heat dissipation fins 415, which can improve the heat dissipation efficiency of the high-voltage component 412. And / or, the surface of the energy storage converter 413 is provided with heat dissipation fins 415, which can improve the heat dissipation efficiency of the energy storage converter 413. In some embodiments, the heat dissipation fins 415 are gradient heat dissipation fins 415 to improve the heat dissipation effect. For example, the heat dissipation fins 415 are provided with multiple fins, and along the gas flow direction, the height of the multiple fins gradually increases, while the spacing between the multiple fins gradually decreases.

[0033] In some embodiments, please refer to Figure 4 The high-voltage assembly 412 includes a high-voltage module 4121 and a low-voltage module 4122. An insulating plate 4114 is provided inside the housing 411. The insulating plate 4114 is located between the high-voltage module 4121 and the low-voltage module 4122 to isolate the high-voltage module 4121 and the low-voltage module 4122, which can improve the impact of the high voltage of the high-voltage module 4121 on the low-voltage module 4122.

[0034] In some embodiments, please refer to the following: Figure 5 The insulating board 4114 includes a resin layer 4115 and a metal mesh 4116 embedded in the resin layer 4115. The resin layer 4115 has good electrical insulation properties, and the metal mesh 4116 has good electromagnetic shielding properties. This allows the insulating board 4114 to simultaneously provide both electrical insulation and electromagnetic shielding, thereby improving the isolation effect of the insulating board 4114 on the high-voltage module 4121 and the low-voltage module 4122 and reducing the mutual interference between the two during operation. The resin layer 4115 can be made of epoxy resin, phenolic resin, or polyimide resin, and the metal mesh 4116 can be made of stainless steel or copper.

[0035] In some embodiments, please refer to Figure 6 The enclosure 411 includes a first part 4117 and a second part 4118 connected together. A high-voltage component 412 is located within the first part 4117, and an energy storage converter 413 is located within the second part 4118. The energy storage cabinet 100 also includes a fire extinguishing gas cylinder 421 disposed in the electrical compartment 112, with the nozzle 4211 of the fire extinguishing gas cylinder 421 facing the second part 4118. The energy storage converter 413 has a high power density and is more prone to overheating and ignition, making the second part 4118 more susceptible to overheating and ignition. The nozzle 4211 of the fire extinguishing gas cylinder 421, facing the second part 4118, can extinguish the fire in the second part 4118, reducing the risk of fire. The fire extinguishing gas cylinder 421 stores a fire extinguishing agent, which can be sprayed from the nozzle 4211. The fire extinguishing agent can be an aerosol.

[0036] In some embodiments, please refer to Figure 7The nozzle 4211 of the fire extinguishing gas cylinder 421 is provided with a diffuser plate 422, which has multiple holes to divide and refine the extinguishing gas sprayed from the fire extinguishing gas cylinder 421, so that the extinguishing gas can be evenly sprayed on the burning component to improve the extinguishing effect. In addition, the diffuser plate 422 can adjust the spray coverage of the extinguishing gas. In some embodiments, the holes of the diffuser plate 422 are arranged according to the thermal distribution gradient.

[0037] In some embodiments, please refer to Figure 1 and Figure 8 The fire-fighting component 42 includes a fire-fighting gas cylinder 421, a diffuser plate 422, a smoke sensor 423, and a temperature sensor 424. The smoke sensor 423 and the temperature sensor 424 are located on the top of the electrical compartment 112. The energy storage cabinet 100 includes a controller (not shown). The controller is electrically connected to the fire-fighting gas cylinder 421, the smoke sensor 423, and the temperature sensor 424. When the value of the smoke sensor 423 exceeds a preset smoke threshold or the value of the temperature sensor 424 exceeds a preset temperature threshold, the controller will control the fire-fighting gas cylinder 421 to spray fire extinguishing gas to extinguish the fire.

[0038] This utility model also provides an embodiment of an energy storage device, which includes the above-mentioned energy storage cabinet 100. The function and structure of the energy storage cabinet 100 can be referred to the above embodiment, and will not be repeated here.

[0039] It should be noted that while the preferred embodiments of this utility model are provided in the specification and accompanying drawings, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this utility model; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An energy storage cabinet, characterized in that, include: The server rack includes battery compartments and electrical compartments; The battery module is located in the battery compartment; A power distribution module is installed in the electrical compartment. The power distribution module includes a housing, a high-voltage component, and an energy storage converter. The housing has a power distribution compartment. The high-voltage component and the energy storage converter are installed in the power distribution compartment. The battery module, the high-voltage component, and the energy storage converter are electrically connected.

2. The energy storage cabinet according to claim 1, characterized in that, The enclosure includes a first plate and a second plate arranged opposite to each other. The first plate is provided with a first vent, and the second plate is provided with a second vent. The first vent, the power distribution compartment, and the second vent form a power distribution duct.

3. The energy storage cabinet according to claim 2, characterized in that, The power distribution module also includes a flow guide disposed in the power distribution compartment, the flow guide being located between the first vent and the second vent.

4. The energy storage cabinet according to claim 2, characterized in that, Along the direction from the first vent to the second vent, the overlapping area of ​​the high-voltage component and the power distribution duct is S1, and the overlapping area of ​​the energy storage converter and the power distribution duct is S2, where S2>S1.

5. The energy storage cabinet according to claim 1, characterized in that, The surface of the high-voltage component is provided with heat dissipation fins; and / or, the surface of the energy storage converter is provided with heat dissipation fins.

6. The energy storage cabinet according to claim 1, characterized in that, The high-voltage component includes a high-voltage module and a low-voltage module. An insulating plate is installed inside the housing, and the insulating plate is located between the high-voltage module and the low-voltage module to isolate the high-voltage module and the low-voltage module.

7. The energy storage cabinet according to claim 6, characterized in that, The insulating board includes a resin layer and a metal mesh embedded in the resin layer.

8. The energy storage cabinet according to claim 1, characterized in that, The enclosure includes a first part and a second part connected together. The high-voltage component is located in the first part, and the energy storage converter is located in the second part. The energy storage cabinet also includes a fire-fighting gas cylinder installed in the electrical compartment, with the nozzle of the fire-fighting gas cylinder facing the second part.

9. The energy storage cabinet according to claim 8, characterized in that, The nozzle of the fire extinguishing gas cylinder is equipped with a diffuser plate, which has multiple holes to divide and refine the extinguishing gas sprayed from the fire extinguishing gas cylinder.

10. An energy storage device, characterized in that, Includes the energy storage cabinet as described in any one of claims 1-9.

Images