Electrochemical energy storage cabinet

Abstract

The utility model discloses an electrochemical energy storage cabinet, which comprises a cabinet body and a base arranged at the bottom of the cabinet body, a fire fighting system is arranged at the top in an alternating current side cabinet door, an air-cooled liquid cooling host is arranged below the fire fighting system, a bidirectional energy storage converter is arranged below the air-cooled liquid cooling host, and a power supply is arranged below the bidirectional energy storage converter. A middle cabinet door is arranged in the middle of the cabinet body, eight battery packs are arranged in the middle cabinet door, high-voltage boxes are arranged at the bottoms of the battery packs, a right cabinet door is arranged on the right side of the cabinet body, eight battery packs are also arranged in the right cabinet door, and an air inlet valve is arranged at the lower right corner of the front face of the right cabinet door. The equipment is installed separately according to the alternating current side and the direct current side, the vertical space is reasonably utilized, higher electric quantity storage can be achieved in a limited occupied area, the energy density is improved, and the increasing requirement of people for the energy density of an energy storage system in the industrial and commercial energy storage field can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field related to electrochemical energy storage technology, and particularly relates to an electrochemical energy storage cabinet. Background Technique

[0002] An electrochemical energy storage cabinet refers to a device for storing electric energy, usually using batteries such as lithium-ion batteries or lithium titanate batteries. In the industrial and commercial fields, electrochemical energy storage cabinets are also widely used. Industrial and commercial electrochemical energy storage cabinets are usually used for power grid peak shaving, energy storage management, emergency backup power supply, power load balancing, and power quality improvement. These battery energy storage systems can help enterprises reduce energy consumption costs and improve energy utilization efficiency through functions such as load management, energy storage, and power release. At the same time, they can also provide backup power to cope with emergencies. The application of electrochemical energy storage cabinets helps to improve the flexibility and stability of the power system and promotes the large-scale application of renewable energy.

[0003] However, with the development of the new energy industry, in the industrial and commercial energy storage field, people's requirements for the energy density of energy storage cabinets are getting higher and higher. A higher energy density means that more electric energy can be stored in the same floor area. Therefore, a layout of an 800 kWh electrochemical energy storage cabinet is proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an electrochemical energy storage cabinet to solve the problem that with the development of the new energy industry, in the industrial and commercial energy storage field, people's requirements for the energy density of energy storage cabinets are getting higher and higher, and a higher energy density means that more electric energy can be stored in the same floor area as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: An electrochemical energy storage cabinet, including a cabinet body and a base arranged at the bottom of the cabinet body;

[0006] On the left side of the front of the cabinet body, there is an AC side cabinet door. There is a ventilation opening on the AC side cabinet door. There are ventilation louvers inside the ventilation opening. There is a fire protection system at the top inside the AC side cabinet door. Below the fire protection system, there is an air-cooled liquid-cooled main unit. Below the air-cooled liquid-cooled main unit, there is a bidirectional energy storage inverter. In the middle of the cabinet body, there is a middle cabinet door. There are 8 battery packs inside the middle cabinet door. There is a high-voltage box at the bottom of the battery packs. On the right side of the cabinet body, there is a right side cabinet door. There are also 8 battery packs inside the right side cabinet door. There is an air intake valve at the lower right corner of the front of the right side cabinet door.

[0007] Preferably, the outer shape of the cabinet is approximately a cuboid, with a width of 2400 mm, a depth of 1400 mm, and a height of 2600 mm. There are 12 columns inside the cabinet, which are connected to the side of the cabinet, and each column is connected by a transverse support beam to ensure the strength of the cabinet frame.

[0008] Preferably, the ventilation opening is integrally connected to the AC side cabinet door. The ventilation opening is a honeycomb-shaped opening, and the ventilation louvers are installed on the back of the ventilation opening. The ventilation louvers can prevent water from entering, and ventilation openings and ventilation louvers are also provided at corresponding positions on the back of the cabinet.

[0009] Preferably, the bidirectional energy storage converter is installed on the column using a support, and the position is at the lower part of the AC side. The air-cooled liquid-cooled main unit is also installed on the column using a support, and the position is at the middle and upper part of the AC side. The fire protection system is arranged at the upper part of the AC side, and the fixing method is the same as that of the bidirectional energy storage converter and the air-cooled liquid-cooled main unit.

[0010] Preferably, the battery packs are divided into two clusters, with 8 battery packs in each cluster. The battery packs are arranged equidistantly from top to bottom on the bracket, and the high-voltage box is also installed on the bracket using a support.

[0011] Preferably, an indicator light and an emergency stop switch button are provided on the right cabinet door. The indicator light and the emergency stop switch button include 3 indicator lights for operation, warning, and fault and 1 emergency stop button to ensure the safe operation of the energy storage cabinet.

[0012] Preferably, an exhaust valve and a pressure relief valve are installed at the corresponding position on the back of the cabinet body of the intake valve, and a document box is installed inside the middle cabinet door for placing relevant materials of the cabinet.

[0013] Compared with the prior art, the present utility model provides an electrochemical energy storage cabinet, which has the following beneficial effects:

[0014] 1. Through the settings of the cabinet body, battery pack, air-cooled liquid-cooled host, bidirectional energy storage inverter, and fire protection system, the device is installed separately on the AC side and DC side, and the vertical space is reasonably utilized, enabling higher power storage within a limited floor area and increasing the energy density. This helps to meet the growing demand for the energy density of energy storage systems in the industrial and commercial energy storage fields. By setting the positions of devices such as the fire protection system, air-cooled liquid-cooled host, bidirectional energy storage converter, and battery pack to be consistent and installing them on the bracket through the support, it helps to maintain the coordination and mutual cooperation between the devices, improving the overall operation efficiency and reliability of the system. Through the settings of the ventilation openings and ventilation louvers, good ventilation conditions are provided for the bidirectional energy storage inverter and the air-cooled liquid-cooled host, which helps with heat dissipation and maintaining the normal operating temperature of the devices. The inner ventilation louvers can also effectively prevent water vapor from entering the system, protecting the devices from moisture, extending the device life. By setting the ventilation openings and ventilation louvers on the back of the cabinet body, not only can the ventilation and heat dissipation on both sides of the cabinet body be ensured, but it also helps to improve the stability and safety of the entire system, further ensuring the continuous and stable operation of the electrochemical energy storage cabinet.

[0015] 2. Through the settings of the indicator light, emergency stop switch button, intake valve, and document box, the indicator light and the emergency stop switch button are the status monitoring and emergency stop devices of the cabinet body, enabling the operator to monitor the operating status of the cabinet body at any time and take immediate measures in case of abnormal situations to ensure the safety of the device and operation. The setting of the intake valve can help the cabinet body intake fresh air, keep the internal air circulating, and the exhaust valve and explosion vent can quickly discharge overheated or harmful gases when needed, keeping the internal environment of the cabinet body clean and safe, and venting the explosion in case of an explosion to avoid damage to the cabinet body, protecting the device and the surrounding environment. The setting of the document box can conveniently store the document materials related to the cabinet body, enabling the staff to easily obtain the corresponding materials, facilitating the understanding of the use and maintenance of the cabinet body, and improving work efficiency and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0017] Figure 2 It is a front view of the closed door of the present utility model.

[0018] Figure 3 It is a front view of the open door of the present utility model.

[0019] In the figure: 1. Ventilation opening; 2. AC side cabinet door; 3. Intermediate cabinet door; 4. Indicator light and emergency stop switch button; 5. Right side cabinet door; 6. Intake valve; 7. Fire protection system; 8. Air-cooled liquid-cooled host; 9. Bidirectional energy storage converter; 10. High-voltage box; 11. Document box; 12. Battery pack; 13. Cabinet body; 14. Base; 15. Ventilation louver. Specific embodiments

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] The present utility model provides an Figures 1-3 electrochemical energy storage cabinet as shown, including a cabinet body 13 and a base 14 provided at the bottom of the cabinet body 13;

[0022] On the left side of the front of the cabinet body 13, there is an AC side cabinet door 2. A ventilation opening 1 is provided on the AC side cabinet door 2. A ventilation louver 15 is provided inside the ventilation opening 1. A fire protection system 7 is provided at the top inside the AC side cabinet door 2. An air-cooled liquid-cooled main unit 8 is provided below the fire protection system 7. A bidirectional energy storage inverter 9 is provided below the air-cooled liquid-cooled main unit 8. A middle cabinet door 3 is provided in the middle of the cabinet body 13. Eight battery packs 12 are provided inside the middle cabinet door 3. A high-voltage box 10 is provided at the bottom of the battery packs 12. A right side cabinet door 5 is provided on the right side of the cabinet body 13. Eight battery packs 12 are also provided inside the right side cabinet door 5. An air inlet valve 6 is provided at the lower right corner of the front of the right side cabinet door 5.

[0023] In this embodiment, the working principle of the electrochemical energy storage cabinet is to convert electrical energy into chemical energy for storage and then convert the chemical energy back into electrical energy and release it when needed. Such an energy storage system is usually composed of batteries, such as lithium-ion batteries, lithium titanate batteries, etc. When there is an electrical energy supply, the battery packs 12 will be charged, converting the electrical energy into chemical energy and storing it in the battery packs 12. Once the battery packs 12 are fully charged, the chemical energy will be kept in the batteries until it is needed to be released. When the stored energy is needed, the battery packs 12 will discharge, converting the chemical energy into electrical energy and supplying it to electrical equipment for use. When using this electrochemical energy storage cabinet, it is necessary to ensure regular charging to maintain the energy storage state of the battery packs 12, reasonably plan the storage and release of energy, avoid over-discharge or over-charging, pay attention to the temperature and environmental conditions of the battery packs 12, and avoid high temperature or extreme cold from affecting the battery performance. Finally, the indicator light and the emergency stop switch button 4 can detect and alarm the overall operating state of this electrochemical energy storage cabinet to ensure the safe operation of the energy storage cabinet.

[0024] As Figure 1 , Figure 2 and Figure 3As shown in the figure, the cabinet body 13 is approximately cuboid in shape, with a width of 2,400 mm, a depth of 1,400 mm, and a height of 2,600 mm. There are 12 upright columns inside the cabinet body 13, which are connected to the side of the cabinet body 13. Each upright column is connected by a transverse support beam, ensuring the strength of the cabinet frame. The ventilation opening 1 is integrally connected to the AC side cabinet door 2. The ventilation opening 1 is a honeycomb-shaped opening. The ventilation louver 15 is installed on the back of the ventilation opening 1. The ventilation louver 15 can prevent water from entering. Ventilation openings 1 and ventilation louvers 15 are also provided at corresponding positions on the back of the cabinet body 13. The bidirectional energy storage converter 9 is installed on the upright column using a support, and its position is in the lower part of the AC side. The air-cooled liquid-cooled main unit 8 is also installed on the upright column using a support, and its position is in the upper-middle part of the AC side. The fire protection system 7 is arranged in the upper part of the AC side, and its fixing method is the same as that of the bidirectional energy storage converter 9 and the air-cooled liquid-cooled main unit 8. The battery packs 12 are divided into two clusters, with 8 battery packs 12 in each cluster. The battery packs 12 are arranged equidistantly from top to bottom on the bracket. The high-voltage box 10 is also installed on the bracket using a support.

[0025] Preferably, through the settings of the cabinet body 13, the battery packs 12, the air-cooled liquid-cooled main unit 8, the bidirectional energy storage AC converter 9, and the fire protection system 7, this electro-chemical energy storage cabinet is divided into an AC side and a DC side. Inside the AC side, the fire protection system 7, the air-cooled liquid-cooled main unit 8, and the bidirectional energy storage converter 9 are installed in sequence from top to bottom. These devices are installed on the brackets inside the cabinet body 13 using supports, and their positions are the same. The DC side is divided into two clusters, with one cluster containing 8 battery packs 12. Each battery pack 12 is arranged equidistantly from top to bottom on the bracket. The high-voltage box 10 is placed below the left battery cluster. Through the reasonable layout of this 800 kWh electro-chemical energy storage cabinet, this electro-chemical energy storage cabinet can store more electricity within the same floor area, and can better meet the increasing demand for the energy density of energy storage cabinets in the industrial and commercial energy storage fields. Through the settings of the ventilation opening 1 and the ventilation louver 15, good ventilation conditions can be provided for the bidirectional energy storage AC converter 9 and the air-cooled liquid-cooled main unit 8, and the ventilation louver 15 installed on the inner side can prevent water from entering. At the same time, the ventilation openings 1 and the ventilation louvers 15 provided at corresponding positions on the back of the cabinet body 13 can ensure the ventilation and heat dissipation of both sides of the cabinet body 1.

[0026] As Figure 1 , Figure 2 and Figure 3 shown in the figure, an indicator light and an emergency stop switch button 4 are provided on the right cabinet door 5. The indicator light and the emergency stop switch button 4 include 3 indicator lights for operation, warning, and failure, and 1 emergency stop button, ensuring the safe operation of the energy storage cabinet. An exhaust valve and a pressure relief valve are installed at the corresponding position on the back of the cabinet body of the intake valve 6. A document box 11 is installed inside the middle cabinet door 3. The document box 11 is used to place relevant information of the cabinet body.

[0027] Preferably, through the settings of the indicator light, emergency stop switch button 4, intake valve 6, and document box 11, the indicator light, emergency stop switch button 4, intake valve 6, exhaust valve, and explosion vent valve are safety protection devices for the cabinet 13, which can monitor the operating state of the cabinet 13, assist the cabinet 13 in intake and exhaust, and at the same time vent the explosion when the cabinet 13 explodes to prevent the cabinet 13 from being damaged. The document box 11 is used to place the relevant materials of the cabinet 13 for the convenience of the staff to pick up.

[0028] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electrochemical energy storage cabinet, comprising a cabinet body (13) and a base (14) arranged at the bottom of the cabinet body (13); Features: An AC side cabinet door (2) is arranged on the left side of the front of the cabinet body (13), a vent (1) is arranged on the AC side cabinet door (2), a ventilation louver (15) is arranged on the inner side of the vent (1), a fire protection system (7) is arranged on the top of the interior of the AC side cabinet door (2), an air-cooled liquid cooling host (8) is arranged below the fire protection system (7), and a bidirectional energy storage converter (9) is arranged below the air-cooled liquid cooling host (8), an intermediate cabinet door (3) is arranged in the middle of the cabinet body (13), eight battery packs (12) are arranged inside the intermediate cabinet door (3), and a high-voltage box (10) is arranged at the bottom of the battery pack (12), a right cabinet door (5) is arranged on the right side of the cabinet body (13), eight battery packs (12) are also arranged inside the right cabinet door (5), and an air intake valve (6) is arranged at the lower right corner of the front of the right cabinet door (5).

2. An electrochemical energy storage cabinet according to claim 1, characterized in that: The cabinet (13) is approximately rectangular in shape, with a width of 2400 mm, a depth of 1400 mm and a height of 2600 mm. Twelve columns are arranged inside the cabinet (13), and the columns are connected to the sides of the cabinet (13). Each column is connected by a transverse support beam, thereby ensuring the strength of the cabinet frame.

3. An electrochemical energy storage cabinet according to claim 2, characterized in that: The ventilation opening (1) is integrally connected to the AC side cabinet door (2); the ventilation opening (1) is a honeycomb-shaped opening; the ventilation louver (15) is installed on the back of the ventilation opening (1); the ventilation louver (15) can prevent water from entering; and the back of the cabinet body (13) is also provided with a ventilation opening (1) and a ventilation louver (15) at a corresponding position.

4. An electrochemical energy storage cabinet according to claim 3, characterized in that: The bidirectional energy storage converter (9) is mounted on a column using a support and is located at the lower part of the AC side. The air-cooled liquid cooling host (8) is also mounted on a column using a support and is located at the middle and upper part of the AC side. The fire protection system (7) is arranged at the upper part of the AC side and is fixed in the same manner as the bidirectional energy storage converter (9) and the air-cooled liquid cooling host (8).

5. The electrochemical energy storage cabinet according to claim 1, characterized in that: The battery packs (12) are divided into two clusters, with eight battery packs (12) forming one cluster. The battery packs (12) are arranged equidistantly from top to bottom on the bracket, and the high-voltage box (10) is also mounted on the bracket via a support.

6. The electrochemical energy storage cabinet according to claim 1, characterized in that: The right cabinet door (5) is provided with an indicator light and an emergency stop switch button (4), wherein the indicator light and the emergency stop switch button (4) include three indicator lights of operation, warning and fault and one emergency stop button, so as to ensure the safe operation of the energy storage cabinet.

7. The electrochemical energy storage cabinet according to claim 1, characterized in that: An exhaust valve and an explosion relief valve are installed at positions corresponding to the back of the cabinet of the air inlet valve (6), and a file box (11) is installed on the inner side of the middle cabinet door (3). The file box (11) is used to place cabinet-related documents.

Images