Liquid cooling and energy storage integrated cabinet

Abstract

The utility model relates to a liquid cooling and energy storage integrated cabinet, which comprises a cabinet body, a battery cabin, a liquid cooling unit cabin, a PCS cabin and a power distribution system cabin are arranged in the cabinet body, the cabins are separated by partition plates, the battery cabin and the power distribution system cabin are arranged on the right side of the cabinet body, a plurality of batteries PACK and a high-voltage box are arranged in the battery cabin from bottom to top, the batteries PACK are stacked, and the high-voltage box is arranged in the cabinet body. The power distribution system cabin is arranged above the battery cabin, the liquid cooling unit cabin and the PCS cabin are arranged on the left side of the cabinet body, the liquid cooling unit cabin and the PCS cabin are arranged up and down, the PCS is installed in the PCS cabin, each battery PACK is connected with the PCS through a cable, the PCS is close to the rear side of the cabinet body, the rear side of the cabinet body is provided with a cooling fan corresponding to the PCS, and the front side of the cabinet body is uniformly provided with ventilation holes corresponding to the PCS. According to the utility model, the PCS and the battery PACK are integrated in one cabinet, the structure is compact, the arrangement is reasonable, the installation is flexible, the installation cost is reduced, the heat dissipation problem after integration is fully considered, and the heat in the cabinet is timely eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of battery energy storage, in particular to a liquid-cooled energy storage integrated cabinet. Background Art

[0002] With the advent of the GW-level installation era in the energy storage market, the development of energy storage technology, the requirements of various application modes, and the national-level electricity spot planning, battery containers are highlighted by their high performance, high-density integration, and low-cost modular design.

[0003] However, the existing liquid-cooled energy storage containers are basically over 20 feet in size and need to be equipped with a converter and booster integrated machine of about 15 feet to achieve the electrical energy conversion between direct current and the power grid. This requires a large site area and prior supporting civil engineering construction. The cables between the PCS in the liquid-cooled energy storage container and the converter and booster integrated machine are very long, and large lifting vehicles and other equipment are also needed during on-site construction, resulting in high installation costs and being not applicable to some small and medium-sized industrial and commercial energy storage scenarios. Therefore, there is an urgent need to design an industrial and commercial energy storage integrated cabinet with a compact structure, reasonable layout, and flexible installation. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the above deficiencies and provide a liquid-cooled energy storage integrated cabinet. By abandoning the traditional converter and booster integrated machine, the PCS and the battery PACK are integrated in one cabinet, which has a compact structure, reasonable layout, and flexible installation. The connection cable between the PCS and the battery PACK is shortened, the installation cost is reduced, and at the same time, the heat dissipation problem after integration is fully considered, and the heat in the cabinet is removed in time; it can operate independently as a single unit or in parallel with multiple units.

[0005] The purpose of the utility model is achieved as follows:

[0006] A liquid-cooled energy storage integrated cabinet includes a cabinet body. A battery compartment, a liquid-cooled unit compartment, a PCS compartment, and a power distribution system compartment are arranged in the cabinet body, and each compartment is separated by a partition. The battery compartment and the power distribution system compartment are arranged on the right side of the cabinet body. A battery PACK and a high-voltage box are arranged in the battery compartment from bottom to top, and multiple battery PACKs are stacked. The power distribution system compartment is arranged above the battery compartment. The liquid-cooled unit compartment and the PCS compartment are arranged on the left side of the cabinet body, and the liquid-cooled unit compartment and the PCS compartment are arranged vertically. The PCS is installed in the PCS compartment. Each battery PACK is connected to the PCS through a cable. The PCS is close to the rear side of the cabinet body. A heat dissipation fan is arranged at the rear side of the cabinet body corresponding to the PCS, and ventilation holes are evenly distributed on the front side of the cabinet body corresponding to the PCS.

[0007] Preferably, two heat dissipation fans are distributed vertically, and the heat dissipation fans are equipped with fan covers.

[0008] Preferably, the liquid cooling unit is installed in the liquid cooling unit cabin, and the liquid cooling unit is connected to each battery PACK through a liquid cooling pipeline.

[0009] Preferably, ventilation holes are also provided in the cabinet door on the front side of the cabinet body corresponding to the liquid cooling unit, and heat dissipation holes are provided in the rear door of the liquid cooling unit.

[0010] Preferably, the cabinet body is also provided with a fire detector and an aerosol fire extinguishing device. The fire detector is arranged at the top right of the cabinet body, and the aerosol fire extinguishing device is arranged at the bottom right of the cabinet body. The aerosol fire extinguishing device is arranged corresponding to the battery PACK.

[0011] The beneficial effects of the present utility model are as follows:

[0012] Abandoning the traditional integrated converter and booster, integrating the PCS and the battery PACK in one cabinet, with a compact structure, reasonable layout, flexible installation, shortening the connection cable between the PCS and the battery PACK, reducing the installation cost, and at the same time fully considering the heat dissipation problem after integration to timely remove the heat in the cabinet; it can operate independently as a single unit or in parallel with multiple units. Description of the Drawings

[0013] Figure 1 It is a three-dimensional structure schematic diagram (cabinet door removed) of a liquid cooling energy storage integrated cabinet of the present utility model.

[0014] Figure 2 It is Figure 1 the left view of

[0015] Figure 3 It is the front view (with cabinet door) of a liquid cooling energy storage integrated cabinet of the present utility model.

[0016] Figure 4 It is the rear view (with cabinet door) of a liquid cooling energy storage integrated cabinet of the present utility model.

[0017] Figure 5 It is the top view (top cover removed) of a liquid cooling energy storage integrated cabinet of the present utility model.

[0018] Among them:

[0019] Cabinet body 1; Battery PACK 2; High-voltage box 3; Power distribution system 4; Liquid cooling unit 5; PCS 6; Cooling fan 7; Ventilation hole 8; Fan cover 9; Heat dissipation hole 10; Fire detector 11; Aerosol fire extinguishing device 12; EMU 13. Specific Embodiments

[0020] See Figures 1-5The utility model relates to a liquid-cooled energy storage integrated cabinet, comprising a cabinet body 1, wherein a battery compartment, a liquid-cooled unit compartment, a PCS compartment and a power distribution system compartment are arranged in the cabinet body 1, and each compartment is separated by a partition, and the partition is provided with heat insulation cotton to prevent heat exchange between the compartments, the battery compartment and the power distribution system compartment are arranged on the right side of the cabinet body, and a battery PACK2 and a high-voltage box 3 are arranged from bottom to top in the battery compartment, and a plurality of battery PACK2 are stacked, and the power distribution system compartment is arranged above the battery compartment, and the liquid-cooled unit compartment and the PCS compartment are arranged on the left side of the cabinet body, and the liquid-cooled unit compartment and the PCS compartment are arranged up and down, and a liquid cooling unit 5 is installed in the liquid cooling unit compartment, and the liquid cooling unit 5 is connected to each battery PACK2 through a liquid cooling pipeline, and the coolant is transmitted through the liquid cooling pipeline to take away the heat generated by the battery PACK, and the PCS6 is installed in the PCS compartment, and each battery PACK2 is connected to the PCS6 through a cable.

[0021] The PCS 6 is close to the rear side of the cabinet 1. A cooling fan 7 is provided at the rear side of the cabinet 1 corresponding to the PCS 6. The two cooling fans 7 are distributed up and down. The ventilation volume of the cooling fans meets the PCS cooling requirements. Ventilation holes 8 are evenly distributed on the cabinet door at the front side of the cabinet 1 corresponding to the PCS 6. The cooling fan 7 draws the heat generated by the PCS out of the cabinet from front to back. The cooling fan 7 is equipped with a fan cover 9, which can meet the outdoor protection level requirements.

[0022] The cabinet door at the front side of the cabinet body is also provided with ventilation holes 8 corresponding to the liquid cooling unit 5, and the rear door of the liquid cooling unit is provided with heat dissipation holes 10, which can effectively discharge the heat generated by the operation of the liquid cooling unit.

[0023] The liquid cooling unit cabin and the PCS cabin are separated by a liquid cooling unit partition, and the liquid cooling unit partition is used to install the liquid cooling unit and discharge the condensed water generated by the operation of the liquid cooling unit.

[0024] The cabinet 1 is also provided with a fire detector 11 and an aerosol fire extinguishing device 12. The fire detector 11 is arranged at the top right side of the cabinet, and the aerosol fire extinguishing device 12 is arranged at the bottom right side of the cabinet. The aerosol fire extinguishing device 12 is arranged corresponding to the battery PACK 2. In the event of thermal runaway of the battery, accurate fire fighting is carried out, while also saving costs.

[0025] The power distribution system 4 and EMU13 are arranged in the power distribution system cabin. The power distribution system 4 is located on the upper side of the battery PACK. The power distribution system 4 is separated from the battery PACK2, which can effectively avoid problems such as system short circuit caused by condensed water entering the power distribution system 4. The power distribution system 4 is in the middle of the power distribution system cabin, and the EMU13 is at the rear of the power distribution system 4. The EMU monitors and protects the charging and discharging of the battery PACK and manages the energy, which can realize the functions of advanced predictive diagnosis and dynamic analysis of the operating conditions such as the safety and health of the battery system.

[0026] In addition to the above embodiments, the present utility model also includes other implementation manners. Any technical solutions formed by equivalent transformation or equivalent substitution shall fall within the protection scope of the claims of the present utility model.

Claims

1. A liquid-cooled energy storage integrated cabinet, characterized in that: It includes a cabinet, in which a battery compartment, a liquid cooling unit compartment, a PCS compartment and a power distribution system compartment are arranged, and the compartments are separated by partitions. The battery compartment and the power distribution system compartment are arranged on the right side of the cabinet, and a battery PACK and a high-voltage box are arranged from bottom to top in the battery compartment, and multiple battery PACKs are stacked, the power distribution system compartment is arranged above the battery compartment, the liquid cooling unit compartment and the PCS compartment are arranged on the left side of the cabinet, and the liquid cooling unit compartment and the PCS compartment are arranged up and down, the PCS is installed in the PCS compartment, each battery PACK is connected to the PCS through a cable, the PCS is close to the rear side of the cabinet, a cooling fan is arranged on the rear side of the cabinet corresponding to the PCS, and ventilation holes are evenly distributed on the front side of the cabinet corresponding to the PCS.

2. The liquid-cooled energy storage integrated cabinet according to claim 1, characterized in that: Two cooling fans are distributed up and down, and the cooling fans are equipped with fan covers.

3. The liquid-cooled energy storage integrated cabinet according to claim 1, characterized in that: The liquid cooling unit is installed in the liquid cooling unit cabin, and the liquid cooling unit is connected to each battery PACK through a liquid cooling pipeline.

4. The liquid-cooled energy storage integrated cabinet according to claim 3, characterized in that: The cabinet door on the front side of the cabinet body is also provided with ventilation holes corresponding to the liquid cooling unit, and the rear door of the liquid cooling unit is provided with heat dissipation holes.

5. The liquid-cooled energy storage integrated cabinet according to claim 1, characterized in that: The cabinet is also provided with a fire detector and an aerosol fire extinguishing device. The fire detector is arranged at the top right side of the cabinet, and the aerosol fire extinguishing device is arranged at the bottom right side of the cabinet. The aerosol fire extinguishing device is arranged corresponding to the battery PACK.

Images