Industrial and commercial energy storage integrated cabinet

Abstract

The utility model relates to the technical field of energy storage, in particular to an industrial and commercial energy storage integrated cabinet which comprises a cabinet shell, a first bin body and a second bin body which are vertically adjacent to each other are arranged in the cabinet shell, a battery unit and a high-voltage box are arranged in the first bin body, and a PCS assembly is arranged in the second bin body. An air conditioner is arranged in front of the first bin body, the battery unit and the high-voltage box are arranged on a ventilation support arranged in the first bin body, an air outlet of the air conditioner is located above the air inlet and connected with a top opening of the ventilation support through an air guide duct, and the top opening of the ventilation support is communicated with the left side face and the right side face of the battery unit. The air guide duct comprises one air inlet duct and is communicated with three air outlet ducts, and a cooling fan is arranged in each battery unit; cooling cold air is divided into three parts, conveyed to the top opening of the ventilation support, sucked downwards by the cooling fan arranged in each battery unit, subjected to sufficient heat exchange with the heat conducting plate and finally exhausted from the front of the battery unit to enter an air inlet of an air conditioner, and cooling circulation is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, in particular to an industrial and commercial energy storage integrated cabinet. Background Art

[0002] The new energy storage technology is known as the "super charger" of the power system. Its unique advantage is that it can quickly respond to grid demand. During the low electricity consumption period, these energy storage devices absorb surplus electricity and store it. During the peak electricity consumption period, they release electricity, providing valuable regulation functions for the power grid and effectively alleviating the power supply pressure. With the continuous development of new energy and energy storage technology, energy storage cabinets are being used on an increasingly large scale.

[0003] The structure of the industrial and commercial energy storage cabinet and the design of the air duct are closely related to the stability of the entire system and the life, efficiency and safety of the battery unit. Reasonable optimization of internal heat dissipation is crucial to the design of the energy storage cabinet. Utility Model Content

[0004] The purpose of the utility model is to provide an industrial and commercial energy storage integrated cabinet, which has a good heat dissipation effect and effectively improves the safety of the cabinet.

[0005] In order to solve the above technical problems, the solution adopted by the utility model is:

[0006] An industrial and commercial energy storage integrated cabinet comprises a cabinet shell, wherein a first compartment body and a second compartment body which are vertically adjacent to each other are arranged in the cabinet shell, a battery unit and a high-voltage box are arranged in the first compartment body, and a PCS component is arranged in the second compartment body;

[0007] An air conditioner is arranged in front of the first warehouse body, and the battery unit and the high-voltage box are arranged on a ventilation bracket provided in the first warehouse body. The air conditioner is provided with an air inlet and an air outlet, and the air outlet is located above the air inlet and the air outlet is connected to the top opening of the ventilation bracket through an air guide duct. The top opening of the ventilation bracket is connected to the left and right sides of the battery unit. The air guide duct includes an air inlet duct, and the air inlet duct is connected to 3 air outlet ducts. An independent cooling fan is arranged in each battery unit, and the blowing direction of the cooling fan is from back to front.

[0008] Furthermore, the top of the ventilation bracket is provided with three parallel top openings, below the top opening is a cavity and connected to the left and right sides of the battery unit, and the bottom of each air outlet is connected to one top opening of the ventilation bracket.

[0009] Furthermore, the cooling fan is arranged in front of the battery unit, the left and right sides of the battery unit are provided with air inlet gaps communicating with the cooling fan, and the front of the battery unit is the air outlet surface of the cooling fan.

[0010] Further, the number of the battery units is 9 to 19, the number of the high-voltage boxes is 1, several compartments are arranged in the ventilation bracket, and the battery units and the high-voltage boxes are respectively arranged in the compartments.

[0011] Further, a partition is arranged between the first bin body and the second bin body, and the volume of the first bin body is larger than that of the second bin body.

[0012] Further, separate cabinet doors are arranged in front of the first bin body and the second bin body, and the air conditioner is embedded in the cabinet door in front of the first bin body.

[0013] Further, the battery units are placed vertically in two columns on the left and right, and top openings are arranged above the upper part between the left-column battery units and the right-column battery units, above the left side of the left-column battery units, and above the right side of the right-column battery units.

[0014] Further, the number of the left column and the right column of the battery units differs by 1, and the high-voltage box is located below the column with fewer battery units.

[0015] Further, a heat conduction plate is arranged in the air inlet gap.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] The structure of the present utility model is reasonable. The cooling cold air output by the air conditioner is divided into three parts through the air guiding air duct and is conveyed to the 3 top openings arranged at the top of the ventilation bracket. Then, the cooling cold air is conveyed downward to the left and right sides of the battery units, is inhaled by the independent cooling fans arranged in each battery unit into the uniformly arranged air inlet gaps, and completes sufficient heat exchange with the heat conduction plate. Finally, the cooling cold air is discharged from the front of the battery units into the air inlet of the air conditioner, completing the heat dissipation and cooling cycle. The cooling air flow path of this solution is reasonably designed, and the heat dissipation efficiency is high and the effect is uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic three-dimensional structure of the present utility model Figure 1 ;

[0019] Figure 2 is Figure 1 the schematic cross-sectional structure diagram taken along the line A-A in

[0020] Figure 3 is a schematic three-dimensional structure of the present utility model Figure 2 ;

[0021] Figure 4 is Figure 3 the schematic cross-sectional structure diagram taken along the line B-B in

[0022] Figure 5 is Figure 4Schematic diagram of the flow direction of the medium circulating cooling air

[0023] Figure 6 Schematic structural diagram of the ventilation bracket in the present utility model

[0024] Figure 7 is Figure 6 Enlarged schematic diagram at position C in

[0025] Figure 8 Schematic structural diagram of the air guiding duct in the present utility model

[0026] Figure 9 Schematic structural diagram of the battery unit in the present utility model

[0027] Figure 10 is Figure 9 Schematic cross-sectional structure diagram taken along the D-D direction in

[0028] Figure 11 Schematic structural diagram of the heat conducting plate in the present utility model

[0029] In the figure: 1. First bin; 1a. Battery unit; 1a-1. Cooling fan; 1a-2. Air inlet gap; 1a-3. Heat conducting plate; 1b. High-voltage box; 1c. Ventilation bracket; 1c-1. Top opening; 1d. Air guiding duct; 1d-1. Air inlet duct; 1d-2. Air outlet duct; 2. Second bin; 2a. PCS component; 3. Air conditioner; 4. Partition board. Specific implementation manner

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0031] Such as Figures 1 to 11As shown, an industrial and commercial energy storage integrated cabinet includes a cabinet shell made of SUS sheet metal, an inner side wall of the cabinet shell is provided with an insulation layer, the thickness of the insulation layer is ≥20mm, and the flame retardant grade is UL94-V0; a first warehouse body 1 and a second warehouse body 2 are vertically adjacent to each other in the cabinet shell, a partition 4 is provided between the first warehouse body 1 and the second warehouse body 2, the volume of the first warehouse body 1 is larger than that of the second warehouse body 2, 9 to 19 battery cells 1a and 1 high-voltage box 1b are provided in the first warehouse body 1, and the battery cells 1a are vertically arranged in two left and right columns, and the number of the left column and the right column of the battery cells 1a differs by 1. 1, the high-voltage box 1b is located below a row of battery cells 1a with a smaller number, a PCS component 2a is arranged in the second compartment 2, and a UPS and a gateway component are also arranged, the battery cell 1a is connected to the PCS component 2a through the high-voltage box 1b, the PCS component 2a is the energy storage inverter, which controls the charging and discharging process of the battery cell 1a and performs AC / DC conversion, and can convert the DC power of the battery cell 1a into AC power and transmit it to the power grid or for the customer's load, and can also draw power from the power grid and convert the AC power into DC power to charge the battery cell 1a.

[0032] Separate cabinet doors are provided in front of the first warehouse body 1 and the second warehouse body 2. The cabinet doors are closed when the industrial and commercial energy storage integrated cabinet is working. The 9 to 19 battery cells 1a will generate more heat when working, so it is necessary to dissipate heat and cool the first warehouse body 1. In order to achieve efficient heat dissipation in the energy storage integrated cabinet, an air conditioner 3 with a cooling capacity of 5KW is provided in front of the first warehouse body 1. The cabinet-specific air conditioner 3 is embedded in the cabinet door in front of the first warehouse body 1. The air supply method is upper cold air outlet. The battery unit 1a and the high-voltage box 1b are arranged on the ventilation bracket 1c provided in the first warehouse body 1. A plurality of grids are provided in the ventilation bracket 1c. The battery unit 1a and the high-voltage box 1b are arranged in the grids one by one. The air conditioner 3 is provided with an air inlet and an air outlet, and the air outlet is located above the air inlet. When the cabinet door is closed, the air outlet of the air conditioner 3 is connected to the top opening 1c of the ventilation bracket 1c through the air guide duct 1d. 1. The battery cells 1a are placed vertically in two left and right columns. Top openings 1c-1 are provided above the left column battery cells 1a and the right column battery cells 1a, above the left side of the left column battery cells 1a, and above the right side of the right column battery cells 1a. The top opening 1c-1 of the ventilation bracket 1c is connected to the left and right sides of the battery cell 1a. Specifically, the bottom of the top opening 1c-1 is a cavity and is connected to the left and right sides of the battery cell 1a. The bottom of each air outlet duct 1d-2 is connected to a top opening 1c-1 of the ventilation bracket 1c. The air guide duct 1d includes an air inlet duct 1d-1, and the air inlet duct 1d-1 is connected to three air outlet ducts 1d-2, so that the air outlet of the air conditioner 3 is divided into three and transported to the three top openings 1c-1 provided on the top of the ventilation bracket 1c. The heat dissipation cold air is transported downward from the top opening 1c-1 to the left and right sides of all battery cells 1a.

[0033] An independent cooling fan 1a-1 is provided inside each battery cell 1a. The cooling fan 1a-1 is arranged in front of the battery cell 1a, and its blowing direction is from the back to the front. Air inlet gaps 1a-2 communicating with the cooling fan 1a-1 are provided on the left and right sides of the battery cell 1a. The front of the battery cell 1a is the air outlet surface of the cooling fan 1a-1. A heat conduction plate 1a-3 in contact with the outer shell of the battery core for heat transfer is arranged in the air inlet gap 1a-2. Convex heat dissipation fins are arranged in the middle of the heat conduction plate 1a-3 to increase the contact area with the air flow. After the cold air for heat dissipation reaches the left and right sides of the battery cell 1a, under the action of the cooling fan 1a-1, it is sucked into the heat conduction plate 1a-3 in the air inlet gap 1a-2 to complete the heat exchange, and then is discharged from the front of the battery cell 1a and finally enters the air inlet of the air conditioner 3 to complete the heat dissipation and cooling cycle.

[0034] The industrial and commercial energy storage integrated cabinet of the present utility model reduces the temperature of the battery cell 1a by establishing a good air circulation path inside. The temperature inside the cabinet is maintained at 25°C - 30°C, and the heat dissipation in each area is uniform. The left and right sides of each battery cell 1a can absorb the cold air for heat dissipation, ensuring that the temperature difference between each battery core is ≤5°C. In addition, the position and environment of the energy storage integrated cabinet will also affect the heat dissipation effect. Placing the energy storage cabinet in a well-ventilated area and avoiding exposure to sunlight or narrow spaces can help reduce the temperature and thus improve the heat dissipation efficiency. At the same time, regularly cleaning the sundries and dust around the energy storage cabinet can keep the ventilation unobstructed and ensure the normal operation of the heat dissipation equipment.

[0035] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. It should be noted that for those of ordinary skill in the art, any changes, modifications or additions made without departing from the concept of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. Industrial and commercial energy storage integrated cabinet, characterized by: The cabinet comprises a cabinet shell, wherein a first compartment (1) and a second compartment (2) are arranged vertically adjacent to each other, a battery unit (1a) and a high-voltage box (1b) are arranged in the first compartment (1), and a PCS assembly (2a) is arranged in the second compartment (2); An air conditioner (3) is arranged in front of the first warehouse (1); the battery unit (1a) and the high-voltage box (1b) are arranged on a ventilation bracket (1c) arranged in the first warehouse (1); the air conditioner (3) is provided with an air inlet and an air outlet, wherein the air outlet is located above the air inlet and the air outlet is connected to the top opening (1c-1) of the ventilation bracket (1c) through an air guide duct (1d); the top opening (1c-1) of the ventilation bracket (1c) is connected to the left and right sides of the battery unit (1a); the air guide duct (1d) includes an air inlet duct (1d-1); the air inlet duct (1d-1) is connected to three air outlet ducts (1d-2); each battery unit (1a) is provided with an independent cooling fan (1a-1); the cooling fan (1a-1) blows air from the back to the front.

2. The industrial and commercial energy storage integrated cabinet according to claim 1, characterized in that: The top of the ventilation bracket (1c) is provided with three parallel top openings (1c-1); the bottom of the top openings (1c-1) is a cavity connected to the left and right sides of the battery unit (1a); and the bottom of each air outlet duct (1d-2) is connected to a top opening (1c-1) of the ventilation bracket (1c).

3. The industrial and commercial energy storage integrated cabinet according to claim 2, characterized in that: The cooling fan (1a-1) is arranged in front of the battery unit (1a); the left and right sides of the battery unit (1a) are provided with air inlet slits (1a-2) communicating with the cooling fan (1a-1); and the front of the battery unit (1a) is the air outlet surface of the cooling fan (1a-1).

4. The industrial and commercial energy storage integrated cabinet according to claim 3, characterized in that: The number of the battery units (1a) is 9 to 19, the number of the high-voltage box (1b) is 1, a plurality of grids are arranged in the ventilation bracket (1c), and the battery units (1a) and the high-voltage box (1b) are arranged in the grids one by one.

5. The industrial and commercial energy storage integrated cabinet according to claim 4, characterized in that: A partition (4) is provided between the first warehouse body (1) and the second warehouse body (2); the volume of the first warehouse body (1) is larger than that of the second warehouse body (2).

6. The industrial and commercial energy storage integrated cabinet according to claim 5, characterized in that: The first warehouse body (1) and the second warehouse body (2) are both provided with separate cabinet doors in front, and the air conditioner (3) is embedded in the cabinet door in front of the first warehouse body (1).

7. The industrial and commercial energy storage integrated cabinet according to claim 6, characterized in that: The battery cells (1a) are arranged vertically in two left and right columns, and top openings (1c-1) are provided above the left and right columns of battery cells (1a), above the left sides of the left and right columns of battery cells (1a).

8. The industrial and commercial energy storage integrated cabinet according to claim 7, characterized in that: The number of the left column and the right column of the battery cells (1a) differ by one, and the high-voltage box (1b) is located below the column with the smaller number of battery cells (1a).

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