Energy storage cabinet

Abstract

The invention discloses an energy storage cabinet, and relates to the technical field of battery energy storage. The cabinet comprises a cabinet body and a solar cell module, wherein the solar cell module is fixed at the top of the cabinet body; the cabinet body comprises a battery bin, a control bin and a rear backboard. A plurality of bracket slide rails are arranged in the battery compartment side by side, and a cooling plate is fixed on each row of bracket slide rails; an integrated water cooling machine is arranged in the control bin; the cooling plate is connected to the integrated water cooling machine through a water cooling pipeline; a plurality of semiconductor coolers are fixed on the back plate; and the solar cell module is electrically connected with the semiconductor cooler. The circulating water cooling plate is adopted to carry out cooling control on the battery of the energy storage cabinet, the solar battery assembly is arranged at the top of the energy storage cabinet, extra electric energy independent of the energy storage cabinet can be provided, meanwhile, the semiconductor refrigerator is installed on the energy storage cabinet, the solar battery is used for direct refrigeration, and the use energy consumption of the energy storage cabinet is effectively reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of energy storage cabinets, and particularly relates to an energy storage cabinet. Background Art

[0002] An energy storage cabinet is a device used to store and release electrical energy. It consists of one or more batteries that can store electrical energy for use when needed. Energy storage cabinets are usually used in power systems, where they can be used to balance grid loads, provide backup power, and respond to emergencies. The technological development of energy storage cabinets focuses on safety, efficiency, and economy, and the innovation of liquid cooling technology, intelligent EMS, and fire protection systems has become the key breakthrough points.

[0003] A large amount of heat is generated during the charging and discharging process of batteries. If the heat dissipation is not good, it will affect the performance and lifespan, and even cause safety problems. Then there is the issue of battery consistency. The differences between different battery units may lead to a decrease in overall efficiency. There is also the problem of battery aging and cycle life, which will affect the long-term reliability of the energy storage system.

[0004] Lithium batteries may have the risk of overheating, catching fire, or even exploding, especially in the case of high energy density. When charging and discharging at high rates, the heat generation rate of the battery can reach 10 - 20 W / unit. Traditional air-cooling systems are difficult to meet the heat dissipation requirements under conditions of >1C. The thermal conductivity of phase change materials (PCM) is only 0.2 - 5 W / (m 2 ·K), and a composite thermal management solution needs to be constructed in combination with a liquid cooling system (heat transfer coefficient >500 W / (m Summary of the Invention

[0005] The purpose of the present invention is to provide an energy storage cabinet. By using a circulating water-cooled plate to control the temperature of the batteries in the energy storage cabinet; by setting a solar cell module on the top of the energy storage cabinet, it can provide additional electrical energy independent of the energy storage cabinet itself. At the same time, a semiconductor refrigerator is installed on the energy storage cabinet, and direct cooling is carried out using solar cells, effectively reducing the energy consumption during the use of the energy storage cabinet, and solving the problems of large cooling energy consumption, insufficient cooling effect, and easy generation of water vapor in the existing energy storage cabinet.

[0006] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0007] The present invention is an energy storage cabinet, including a cabinet body and a solar cell module. The solar cell module is fixed on the top of the cabinet body; the cabinet body includes a battery compartment, a control compartment, and a rear backboard; a number of support rails are arranged in parallel in the battery compartment, and a cooling plate is fixed on each row of support rails; an integrated water chiller is arranged in the control compartment; the cooling plate is connected to the integrated water chiller through a water cooling pipeline; a number of semiconductor refrigerators are fixed on the rear backboard; the solar cell module is electrically connected to the semiconductor refrigerators.

[0008] Further, two sets of fire protection systems are also provided inside the cabinet. Each fire protection system includes a fire extinguishing agent tank and a fire extinguishing pipeline. The pipeline nozzle of one fire protection system is located between the two cooling plates, and the pipeline nozzle of the other fire protection system is located on the inner top plate of the cabinet.

[0009] Further, the cooling plate includes a cooling tank plate and a cover plate. The cooling tank plate includes a sealing groove and a wavy channel. An inlet is provided at one end of the wavy channel, and an outlet is provided at the other end of the wavy channel.

[0010] Further, the solar cell module includes a support frame, pressing blocks, and solar panels. The support frame includes a set of T-shaped supports. A tray is fixed between the two T-shaped supports, and a U-shaped bracket is fixed on each side of the tray. The solar panels are fixed on the U-shaped brackets through a plurality of the pressing blocks.

[0011] Further, the pressing blocks are Z-shaped strip plates. A plurality of the pressing blocks are located on the tray, and a plurality of the pressing blocks are located on the U-shaped brackets.

[0012] Further, lifting lugs are respectively connected to the top of the cabinet and the T-shaped supports.

[0013] Further, the T-shaped supports are fixed on the top of the cabinet. After lifting the cabinet to the installation position, the solar cell module is hoisted onto the top of the cabinet.

[0014] Further, a double-layer fireproof partition filled with ceramic fiber is provided between the battery compartment and the control compartment.

[0015] Further, a pressure relief valve is installed on the top of the cabinet.

[0016] Further, the two side plates of the cabinet are of double-layer structure, and ceramic fiber is filled inside the side plates.

[0017] The present invention has the following beneficial effects:

[0018] By adopting a circulating water cooling plate to control the temperature of the battery of the energy storage cabinet, the present invention has good general performance and good independence of the cooling water circuit. By providing a solar cell module on the top of the energy storage cabinet, it can provide additional electric energy independent of the energy storage cabinet itself, play a role in shading and rain protection, reduce the influence of the environment on the cabinet, and reduce the generation of water vapor inside the energy storage cabinet. At the same time, a semiconductor refrigerator is installed on the energy storage cabinet, and direct cooling is carried out by using the solar cell, effectively reducing the energy consumption during the use of the energy storage cabinet.

[0019] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram of an energy storage cabinet for this embodiment;

[0022] Figure 2 is Figure 1 front elevational view of the structure;

[0023] Figure 3 is Figure 1 side elevational view of the structure;

[0024] Figure 4 It is a schematic structural diagram of a cooling plate;

[0025] Figure 5 It is a schematic structural diagram of a cooling tank plate;

[0026] Figure 6 It is a schematic structural diagram of a water cooling pipeline;

[0027] Figure 7 It is a schematic structural diagram of a fire protection system;

[0028] Figure 8 It is a schematic structural diagram of a solar cell module;

[0029] Figure 9 It is a schematic structural diagram of a support frame;

[0030] Figure 10 It is a schematic structural diagram of a pressing block;

[0031] Figure 11 It is a schematic structural diagram of a rear back plate;

[0032] Figure 12 is Figure 11 top plan view of the structure;

[0033] Figure 13 It is a schematic structural diagram of a thermoelectric cooler;

[0034] In the drawings, the list of components represented by each reference numeral is as follows:

[0035] 1 - Cabinet body, 2 - Integrated water chiller, 3 - Cooling plate, 4 - Water cooling pipeline, 5 - Support frame, 6 - Solar panel, 7 - Pressing block, 8 - Lifting lug, 9 - Fire protection system, 101 - Rear panel, 102 - Semiconductor refrigerator, 301 - Cooling tank plate, 302 - Wavy channel, 303 - Water outlet, 304 - Water inlet, 305 - Cover plate, 501 - U-shaped bracket, 502 - Support plate, 503 - T-shaped support. Detailed implementation manner

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Embodiment 1

[0038] As Figure 1 shown, this embodiment is an energy storage cabinet, including a cabinet body 1 and a solar cell module. The solar cell module is fixed on the top of the cabinet body 1. On the one hand, the solar cell module can provide additional electric energy independent of the energy storage cabinet itself. On the other hand, the solar panel 6 fixed on the top of the cabinet body 1 plays a role in shading and protecting the cabinet body 1 from rain, reducing the impact of the environment on the cabinet body.

[0039] As Figure 2 shown, the cabinet body 1 includes a battery compartment, a control compartment and a rear panel 101; a number of aluminum alloy profile support rails for supporting battery modules are arranged side by side in the battery compartment, and a cooling plate 3 for cooling adjacent two battery modules is fixed on each row of support rails; an integrated water chiller 2 is arranged in the control compartment, using an Inwinch integrated water chiller; the cooling plate 3 is connected to the integrated water chiller 2 through a water cooling pipeline 4, and the battery modules are cooled by the integrated water chiller 2.

[0040] As Figure 11 shown, a number of semiconductor refrigerators 102 are fixed on the rear panel 101; the solar cell module is electrically connected to the semiconductor refrigerator 102, and the electric energy generated by the solar panel 6 is used for the semiconductor refrigerator 102 to refrigerate, which can effectively stabilize the working environment of the battery compartment and reduce the working energy consumption of the energy storage cabinet at the same time.

[0041] The requirements for the shell material of the cabinet body 1: High-strength galvanized steel plate with a thickness ≥ 1.5 mm or aluminum alloy is used, and the surface is subjected to anti-corrosion spraying treatment, meeting the IP54 protection level for outdoor use, and IP65 is required.

[0042] The frame of the cabinet body 1 is connected to the foundation through elastic dampers, and the natural frequency avoids the main earthquake frequency band of 2 - 8 Hz, meeting the IEC 61496 standard.

[0043] As Figure 4 shown, the cooling plate 3 includes a cooling tank plate 301 and a cover plate 305, and the cooling plate 3 is made of copper; as Figure 5 shown, the cooling tank plate 301 includes a sealing groove and a wavy channel 302, and a rubber sealing ring is fitted in the sealing groove; a water inlet 304 is provided at one end of the wavy channel 302, and a water outlet 303 is provided at the other end of the wavy channel 302; the cooling tank plate 301 and the cover plate 305 are buckled with each other and sealed by a rubber sealing ring.

[0044] As Figure 6 shown, the water cooling pipeline 4 includes a main water inlet pipe and a main water outlet pipe; a number of water inlet branch pipes are arranged side by side on the main water inlet pipe, and a water inlet branch pipe is connected to the water inlet 304 of a cooling plate 3; a number of water outlet branch pipes are arranged side by side on the main water outlet pipe, and a water outlet branch pipe is connected to the water outlet 303 of a cooling plate 3.

[0045] As Figure 8 shown, the solar cell module includes a support frame 5, a pressing block 7 and a solar cell panel 6. As Figure 9 shown, the support frame 5 includes a group of T-shaped supports 503, and the T-shaped supports 503 are fixed on the top of the cabinet body 1 by bolts. A support plate 502 is fixed between two T-shaped supports 503, and a U-shaped bracket 501 is respectively fixed on both sides of the support plate 502; the solar cell panel 6 is fixed on the U-shaped bracket 501 by a number of pressing blocks 7.

[0046] As Figure 10 shown, the pressing block 7 is a Z-shaped strip plate, and a number of anti-slip channels are opened on the surface of the Z-shaped strip plate in contact with the outer frame of the solar cell panel 6; a number of pressing blocks 7 are fixed on the support plate 502 by bolts, and a number of pressing blocks 7 are fixed on the U-shaped bracket 501 by bolts, that is, the two sides of the solar cell panel 6 are respectively clamped and fixed on the support frame 5 by a number of pressing blocks 7.

[0047] Lifting lugs 8 are respectively connected to the top of the cabinet body 1 and the T-shaped supports 503. Four lifting holes (load-bearing ≥ 2 tons) are preset on the top of the cabinet body 1, and the bottom is fixed by anchor bolts. The T-shaped supports 503 are fixed on the top of the cabinet body 1; after lifting the cabinet body 1 to the installation position, the solar cell module is then hoisted to the top of the cabinet body 1.

[0048] As Figure 12 shown, the cooling surface of the semiconductor refrigerator 102 is located on the inner side of the back plate 101, and the heating surface of the semiconductor refrigerator 102 is located on the outer side of the back plate 101, as Figure 13The figure shows a schematic diagram of the semiconductor refrigerator 102. The cold air flow is circulated inside the cabinet body 1 by the fan on the semiconductor refrigerator 102.

[0049] Example 2, based on Example 1

[0050] As Figure 7 shown, a fire protection system 9 is further provided inside the cabinet body 1. The fire protection system 9 includes a fire extinguishing agent tank and a fire extinguishing pipeline. The fire extinguishing agent uses heptafluoropropane or perfluoromethyl isopropyl ketone; the pipeline nozzles of the fire protection system 9 are located between the two cooling plates 3.

[0051] Example 3, based on Example 1

[0052] Two groups of fire protection systems 9 are further provided inside the cabinet body 1. The fire protection system 9 includes a fire extinguishing agent tank and a fire extinguishing pipeline. The fire extinguishing agent uses heptafluoropropane or perfluoromethyl isopropyl ketone; the pipeline nozzles of one fire protection system 9 are located between the two cooling plates 3, and the pipeline nozzles of the other fire protection system 9 are located on the inner top plate of the cabinet body 1.

[0053] Example 4, based on Example 1 or 2 or 3

[0054] A double-layer fireproof partition is provided between the battery compartment and the control compartment and filled with ceramic fiber. As Figure 3 shown, the two side plates of the cabinet body 1 are of double-layer structure, and ceramic fiber is filled inside the side plates.

[0055] Example 5, based on Example 4

[0056] A pressure relief valve is installed on the top of the cabinet body 1 and connected to the bottom diversion channel to ensure the directional release of the explosion shock wave.

[0057] Example 6, based on Example 4

[0058] An intelligent dehumidifier is further fixed on the inner surface of the rear back plate 101. The intelligent dehumidifier uses a dehumidification device of the JXCS-H60TS model.

[0059] The intelligent dehumidification device adopts the semiconductor refrigeration dehumidification method. The humid air in the closed space is actively sucked into the dehumidification air duct under the action of the fan. The water vapor in the air is condensed into water after passing through the semiconductor refrigeration mechanism. Then it is discharged from the cabinet body through the water guide pipe, and a good dehumidification effect can be achieved. By reducing the water content in the air, both the relative humidity and the absolute humidity decrease simultaneously, and the temperature is hardly increased, and the negative impact caused by the temperature difference is not generated. Fundamentally, the occurrence of accidents is prevented or reduced, and the aging of the devices and the cabinet body inside the cabinet due to high temperature is not accelerated.

[0060] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0061] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An energy storage cabinet, characterized in that: It includes a cabinet body (1) and a solar cell module, and the solar cell module is fixed on the top of the cabinet body (1); the cabinet body (1) includes a battery compartment, a control compartment and a back panel (101); a number of support rails are arranged in parallel in the battery compartment, and a cooling plate (3) is fixed on each row of support rails; an integrated water chiller (2) is arranged in the control compartment; the cooling plate (3) is connected to the integrated water chiller (2) through a water cooling pipeline (4); a number of semiconductor refrigerators (102) are fixed on the back panel (101); the solar cell module is electrically connected to the semiconductor refrigerators (102).

2. The energy storage cabinet according to claim 1, wherein, Two groups of fire protection systems (9) are also arranged in the cabinet body (1), and the fire protection system (9) includes a fire extinguishing agent tank and a fire extinguishing pipeline; the pipeline nozzle of one fire protection system (9) is located between the two cooling plates (3), and the pipeline nozzle of the other fire protection system (9) is located on the inner top plate of the cabinet body (1).

3. A energy storage cabinet as claimed in claim 1, wherein, The cooling plate (3) includes a cooling groove plate (301) and a cover plate (305); the cooling groove plate (301) includes a sealing groove and a wavy channel (302); a water inlet (304) is arranged at one end of the wavy channel (302), and a water outlet (303) is arranged at the other end of the wavy channel (302).

4. A power storage cabinet according to any one of claims 1-3, characterized in that, The solar cell module includes a support frame (5), a pressing block (7) and a solar cell panel (6), and the support frame (5) includes a group of T-shaped supports (503), a support plate (502) is fixed between the two T-shaped supports (503), and a U-shaped bracket (501) is fixed on each side of the support plate (502); the solar cell panel (6) is fixed on the U-shaped bracket (501) through a number of the pressing blocks (7).

5. The energy storage cabinet according to claim 4, characterized in that, The pressing block (7) is a Z-shaped strip plate, a number of the pressing blocks (7) are located on the support plate (502), and a number of the pressing blocks (7) are located on the U-shaped bracket (501).

6. The energy storage cabinet according to claim 4, wherein, Lifting lugs (8) are respectively connected to the top of the cabinet body (1) and the T-shaped supports (503).

7. The energy storage cabinet according to claim 6, wherein, The T-shaped supports (503) are fixed on the top of the cabinet body (1); after lifting the cabinet body (1) to the installation position, the solar cell module is hoisted onto the top of the cabinet body (1).

8. A energy storage cabinet according to any one of claims 1-3 or 5-7, characterized in that A double-layer fireproof partition is arranged between the battery compartment and the control compartment and filled with ceramic fiber.

9. The energy storage cabinet according to claim 8, wherein, A pressure relief valve is installed on the top of the cabinet body (1).

10. A energy storage cabinet according to claim 8, characterized in that, The two side plates of the cabinet body (1) are of double-layer structure, and ceramic fiber is filled in the side plates.

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