Liquid cooling heat dissipation and multifunctional integrated energy storage integrated cabinet system

Abstract

The utility model discloses a liquid cooling heat dissipation and multifunctional integrated energy storage integrated cabinet system, which comprises a cabinet body system, an electrical system, a liquid cooling system and a battery pack, the cabinet system body is composed of a steel frame and an external skin, and the steel frame is composed of a bearing beam, a first unit fixing beam, a second unit fixing beam, a first PCS fixing beam, a second PCS fixing beam, an electrical panel fixing beam, a high-voltage box fixing beam and a battery pack fixing beam. The first unit fixing beam, the second unit fixing beam, the first PCS fixing beam and the second PCS fixing beam are fixed in a control cabin of the steel frame, and the electrical panel fixing beam, the high-voltage box fixing beam and the battery pack fixing beam are fixed in a battery cabin of the steel frame; the electrical system comprises a water cooling unit, a unit bracket, a first PCS support, an energy storage converter PCS, a second PCS support, a fire-fighting detector, an air switch, an electrical panel, an energy management system EMS, a high-voltage box, a high-voltage box support and an electronic display screen, and the water cooling unit is fixed to the second unit fixing beam through the unit bracket. An energy storage converter PCS is fixed with a first PCS fixing beam and a second PCS fixing beam through a first PCS support and a second PCS support respectively, a fire-fighting detector and an air switch are fixed with an electrical panel fixing beam through an electrical panel, an energy management system EMS and an electronic display screen are fixed with a battery compartment cabinet door, and a high-voltage box is fixed with a high-voltage box fixing beam through a high-voltage box support. The liquid cooling system comprises a first water cooling adapter, a second water cooling adapter, a first rubber pipe, a second rubber pipe, a first metal pipe, a second metal pipe, a third water cooling adapter and a fourth water cooling adapter, the first water cooling adapter is fixed to a water outlet pipe opening of the water cooling unit, and the second water cooling adapter is fixed to a water inlet pipe opening of the water cooling unit. The first rubber pipe and the second rubber pipe are connected with the first water-cooling adapter pipe and the second water-cooling adapter pipe respectively, the first metal pipe and the second metal pipe are connected with the first rubber pipe and the second rubber pipe respectively, the third water-cooling adapter pipe is connected with the first metal pipe, and the quick-insertion end of the third water-cooling adapter pipe is connected into a water inlet pipe opening of the battery pack. The fourth water-cooling transfer pipe is connected with the second metal pipe, and the quick-insertion end of the fourth water-cooling transfer pipe is connected into a water outlet pipe opening of the battery pack. According to the liquid cooling heat dissipation and multifunctional integrated energy storage integrated cabinet system, the temperature in the energy storage system is controlled in the optimal temperature region of lithium battery operation through the thermal management design, the risks of battery life attenuation and thermal runaway are reduced, and continuous and safe operation of the energy storage system is ensured.

Description

Technical field:

[0001] The utility model relates to a liquid cooling and heat dissipation and multifunctional integrated energy storage cabinet system, which belongs to the technical field of energy storage. Background technology:

[0002] In recent years, governments around the world have introduced a number of policies to encourage the development of energy storage, such as subsidies and tax incentives. The implementation of these policies will promote the expansion of the energy storage cabinet market and the development of the industry. Energy transformation will bring huge opportunities for the development of energy storage cabinets. With the acceleration of global energy transformation, renewable energy will gradually become the mainstream energy, and the volatility of renewable energy makes energy storage equipment a necessity, which will provide a broad market space for the energy storage cabinet industry.

[0003] In the existing technology, the ventilation louvers in the liquid-cooled integrated cabinet are mostly arranged at a 45-degree angle, and the louvers are flanged to block rain, which greatly sacrifices the ventilation and heat dissipation efficiency to meet the IP54 protection level requirements, increases the risk of high-temperature failure of the water-cooled unit, and high-temperature derating of the energy storage converter PCS.

[0004] Therefore, it is necessary to improve the existing technology to solve the shortcomings of the existing technology. Utility model content:

[0005] The utility model provides a liquid cooling and multifunctional integrated energy storage cabinet system to solve the problems existing in the above-mentioned prior art. Through thermal management design, the temperature inside the energy storage system is controlled within the optimal temperature range for the operation of the lithium battery, thereby reducing the risk of battery life attenuation and thermal runaway, and ensuring the continuous and safe operation of the energy storage system.

[0006] The technical solutions adopted by the utility model include: a liquid cooling and heat dissipation and multifunctional integrated energy storage cabinet system, including a cabinet system, an electrical system, a liquid cooling system and a battery pack;

[0007] The cabinet system body is composed of a steel frame and an external skin, and the steel frame is composed of a load-bearing beam, a first unit fixed beam, a second unit fixed beam, a first PCS fixed beam, a second PCS fixed beam, an electrical panel fixed beam, a high-voltage box fixed beam and a battery pack fixed beam. The first unit fixed beam, the second unit fixed beam, the first PCS fixed beam and the second PCS fixed beam are fixed in the control cabin of the steel frame, and the electrical panel fixed beam, the high-voltage box fixed beam and the battery pack fixed beam are fixed in the battery cabin of the steel frame;

[0008] The electrical system includes a water-cooling unit, a unit bracket, a first PCS bracket, an energy storage converter PCS, a second PCS bracket, a fire detector, an air switch, an electrical panel, an energy management system EMS, a high-voltage box, a high-voltage box bracket and an electronic display screen. The water-cooling unit is fixed to the second unit fixed beam through the unit bracket, the energy storage converter PCS is fixed to the first PCS fixed beam and the second PCS fixed beam through the first PCS bracket and the second PCS bracket respectively, the fire detector and the air switch are fixed to the electrical panel fixed beam through the electrical panel, the energy management system EMS and the electronic display screen are fixed to the battery compartment cabinet door, and the high-voltage box is fixed to the high-voltage box fixed beam through the high-voltage box bracket;

[0009] The liquid cooling system includes a first water-cooling adapter, a second water-cooling adapter, a first rubber tube, a second rubber tube, a first metal tube, a second metal tube, a third water-cooling adapter and a fourth water-cooling adapter. The first water-cooling adapter is fixed to the water outlet of the water cooling unit, the second water-cooling adapter is fixed to the water inlet of the water cooling unit, the first rubber tube and the second rubber tube are connected to the first water-cooling adapter and the second water-cooling adapter respectively, the first metal tube and the second metal tube are connected to the first rubber tube and the second rubber tube respectively, the third water-cooling adapter is connected to the first metal tube, the quick-plug end of the third water-cooling adapter is connected to the water inlet of the battery pack, the fourth water-cooling adapter is connected to the second metal tube, and the quick-plug end of the fourth water-cooling adapter is connected to the water outlet of the battery pack.

[0010] The utility model has the following beneficial effects:

[0011] (1) Safety: U-shaped sealing strips are installed between the control compartment door, battery compartment door and bulkhead, and foam silicone sealing pads are installed between the rear cabinet door and bulkhead for sealing, which effectively prevents rainwater from entering the cabinet and causing system short circuit, meeting the IP54 sealing requirements. The pipe connection in the liquid cooling system adopts quick-connect connectors with high sealing performance to prevent coolant leakage. The surface of the water-cooling transfer pipe is embedded with rubber and plastic insulation pipe sleeves to prevent condensation water, which is highly safe.

[0012] (2) Reliability: The liquid cooling system is divided into 2 main branches and 5 branch roads. The branch roads are arranged in parallel to ensure that the flow of coolant into the bottom plate of each battery pack is uniform and consistent, completing the liquid cooling water circulation of the entire energy storage cabinet system, achieving liquid cooling effect on the battery module, ensuring that the battery cells work in the normal temperature range, improving the battery life, and meeting the liquid cooling and heat dissipation requirements. The control cabin cabinet door and rear cabinet door panel are equipped with heat dissipation holes and ventilation louvers. The louvers are evenly arranged at a 60° inclination angle, which is ventilated and rainproof, meeting the ventilation and heat dissipation requirements of the water-cooled unit and PCS, and have high reliability.

[0013] (3) Versatility: It is suitable for most liquid cooling and multifunctional integrated energy storage cabinets on the market. It has a surplus structure size, high modular integration, and can be adjusted in size for different electrical equipment, with strong versatility. Description of the drawings:

[0014] Figure 1 This is a schematic diagram of the assembly of the liquid cooling and multifunctional integrated energy storage cabinet system of the utility model.

[0015] Figure 2 This is a schematic diagram of the cabinet system.

[0016] Figure 3 Schematic diagram of the steel frame.

[0017] Figure 4 Schematic diagram of the external skin.

[0018] Figure 5 This is a schematic diagram of the electrical system.

[0019] Figure 6 Schematic diagram of the liquid cooling system. Specific implementation method:

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] The utility model discloses a liquid cooling and multifunctional integrated energy storage cabinet system, comprising a cabinet system 1, an electrical system 2, a liquid cooling system 3 and a battery pack 4.

[0022] The main body of the cabinet system 1 is composed of a steel frame 5 and an external skin 6. The overall material of the steel frame 5 is Q355, and the steel frame 5 is composed of a load-bearing beam 7, a first unit fixed beam 8, a second unit fixed beam 9, a first PCS fixed beam 10, a second PCS fixed beam 11, an electrical panel fixed beam 12, a high-voltage box fixed beam 13, and a battery pack fixed beam 14. The load-bearing beam 7 is a 3mm rectangular square tube with high strength. The first unit fixed beam 8, the second unit fixed beam 9, the first PCS fixed beam 10, and the second PCS fixed beam 11 are respectively fixed in the control cabin of the steel frame 5 by bolts. The electrical panel fixed beam 12, the high-voltage box fixed beam 13, and the battery pack fixed beam 14 are respectively fixed in the battery cabin of the steel frame 5 by bolts.

[0023] The outer skin 6 is made of SPCC cold-rolled steel plate, which is composed of bulkhead 15, control compartment door 16, battery compartment door 17 and rear door 18. Bulkhead 15 is welded to the steel frame 5. The control compartment door 16 is fixed to the bulkhead 15 by hinges. The control compartment door 16 is located on the left side of the cabinet system 1. The control compartment door 16 is provided with heat dissipation holes and ventilation shutters, which is the air inlet of the cabinet system 1. The battery compartment door 17 is fixed to the bulkhead 15 by hinges. The battery compartment door 17 is located on the right side of the cabinet system 1. A high-voltage warning label is printed on the battery compartment door 17. The rear door 18 is fixed to the bulkhead 15 by bolts and is located at the rear of the cabinet system 1. The battery compartment door 17 is provided with heat dissipation holes and ventilation shutters, which is the air outlet of the cabinet system 1. The ventilation louvers on the control compartment cabinet door 16 and the battery compartment cabinet door 17 are evenly arranged at an angle of 60°, which are ventilated and rainproof, meet the ventilation and heat dissipation requirements of the water-cooled unit and PCS, and increase the service life.

[0024] The cabinet system 1 has high overall strength, the steel frame 5 can be flexibly disassembled, U-shaped sealing strips are provided between the control compartment door 16, the battery compartment door 17 and the bulkhead 15, and a sealing gasket is provided between the rear cabinet door 18 and the bulkhead 15 for sealing treatment, meeting the IP54 sealing requirements.

[0025] The electrical system 2 includes a water-cooled unit 19, a unit bracket 20, a first PCS bracket 21, an energy storage converter PCS 22, a second PCS bracket 23, a fire detector 24, an air switch 25, an electrical panel 26, an energy management system EMS 27, a high-voltage box 28, a high-voltage box bracket 29 and an electronic display screen 30. The unit bracket 20 is made of Q355, and the first PCS bracket 21, the second PCS bracket 23 and the high-voltage box bracket 29 are made of SPCC cold-rolled steel plates, with electrophoresis and spraying treatment on the surface, high strength and good corrosion and rust resistance. The electrical panel 26 is made of 5052-H32, which is light in weight and rust-resistant, meeting the lightweight requirements.

[0026] The water cooling unit 19 is fixed to the second unit fixed beam 9 through the unit bracket 20, and the energy storage converter PCS22 is fixed to the first PCS fixed beam 10 and the second PCS fixed beam 11 through the first PCS bracket 21 and the second PCS bracket 23 respectively. The fire detector 24 and the circuit breaker 25 are fixed to the electrical panel fixed beam 12 through the electrical panel 26, the energy management system EMS27 and the electronic display screen 30 are fixed to the battery compartment cabinet door 17, and the high-voltage box 28 is fixed to the high-voltage box fixed beam 13 through the high-voltage box bracket 29. The overall layout of the energy storage integrated cabinet system is compact, the functional integration is high, and the disassembly and assembly are convenient.

[0027] The liquid cooling system 3 includes a first water-cooling adapter tube 31, a second water-cooling adapter tube 32, a first rubber tube 33, a second rubber tube 34, a first metal tube 35, a second metal tube 36, a third water-cooling adapter tube 37 and a fourth water-cooling adapter tube 38. The first water-cooling adapter tube 31, the second water-cooling adapter tube 32, the third water-cooling adapter tube 37 and the fourth water-cooling adapter tube 38 are all quick-insert structures, which are convenient for connecting water-cooling pipes and can avoid the risk of coolant leakage at the interface. The first water-cooling adapter tube 31, the second water-cooling adapter tube 32, the third water-cooling adapter tube 37 and the fourth water-cooling adapter tube 38 are made of nylon + 6061-T6 aluminum alloy. The first metal tube 35 and the second metal tube 36 are made of 304 stainless steel, which has a long service life, strong corrosion resistance, and good heat resistance and thermal insulation performance. The first rubber tube 33 and the second rubber tube 34 are made of EPDM, which has excellent oxidation resistance and erosion resistance.

[0028] The first water-cooling adapter tube 31 is fixed to the water outlet of the water-cooling unit 19, and the second water-cooling adapter tube 32 is fixed to the water inlet of the water-cooling unit 19. The first rubber tube 33 and the second rubber tube 34 are made of EPDM, which has excellent oxidation resistance and corrosion resistance. The first rubber tube 33 and the second rubber tube 34 are connected to the first water-cooling adapter tube 31 and the second water-cooling adapter tube 32 respectively. The first metal tube 35 and the second metal tube 36 are made of 304 stainless steel, which has a long service life, strong corrosion resistance, and good heat resistance and thermal insulation performance. The first metal tube 35 and the second metal tube 36 are connected to the first rubber tube 33 and the second rubber tube 34 respectively, and the third water-cooling adapter tube 37 is connected to the first metal tube 35. The quick-plug end of the third water-cooling adapter tube 37 is connected to the water inlet of the battery pack 4, the fourth water-cooling adapter tube 38 is connected to the second metal tube 36, and the quick-plug end of the fourth water-cooling adapter tube 38 is connected to the water outlet of the battery pack 4. The connection points of the above pipelines are fastened with clamps, and the liquid cooling condition is turned on. The coolant flows from the outlet of the water cooling unit 19 through the first water cooling adapter tube 31 to the first rubber tube 33, to the first metal tube 35, and from the water inlet of the battery pack 4 to the bottom plate of the battery pack 4 through the third water cooling adapter tube 37. It flows out from the water outlet of the battery pack 4 through the fourth water cooling adapter tube 38 to the second metal tube 36, to the second rubber tube 34, and finally returns to the water inlet of the water cooling unit 19 through the second water cooling adapter tube 32, completing the liquid cooling and heat dissipation water circuit circulation of the entire energy storage cabinet system, achieving the liquid cooling effect on the battery module, ensuring that the battery cell works in the normal temperature range, increasing the safety of the thermal management system of the energy storage cabinet, and improving the battery life. The overall layout of the liquid cooling system 3 is simple, and the surface of the water cooling adapter tube is embedded with a rubber and plastic insulation pipe sleeve to prevent condensed water from dripping and causing a system short circuit, and it is fixed to the cabinet system 1 with a threaded tie to improve the safety and reliability of the energy storage cabinet system and meet the liquid cooling and heat dissipation requirements.

[0029] The battery pack 4 has liquid cooling, fire protection and heat preservation functions. During installation, it is directly inserted into the cabinet system 1 by a forklift and fixed to the battery pack fixing beam 14 by bolts. EVA foam is pasted on the side and back of the battery pack fixing beam 14 for limiting the position. While meeting the limiting function, it prevents the battery pack from being damaged by collision with the steel plate, thereby improving the safety and assembly efficiency of the energy storage cabinet.

[0030] The utility model discloses a liquid cooling and multifunctional integrated energy storage cabinet system which is divided into a control cabin and a battery cabin. The control cabin contains a water cooling unit and an energy storage converter PCS. The control cabin contains a fire detector, an air switch, a high-voltage box, an energy management system EMS, an electrical panel, and a battery pack. Each electrical component in the electrical system is fixed to the corresponding fixed beam through a fixed bracket, with a high degree of modular integration. The electrical wiring harness is fixed through a wire trough, which is safe and neat, thereby improving the overall aesthetics of the energy storage cabinet system.

[0031] The liquid cooling system in the liquid cooling and multifunctional integrated energy storage cabinet system of the utility model is divided into 2 main branches and 5 branch roads, and the branch roads are arranged in parallel to ensure the uniformity of the flow of the coolant into the bottom plate of each battery pack, complete the liquid cooling water circulation of the entire energy storage cabinet system, achieve the liquid cooling effect on the battery module, ensure that the battery cell works in the normal temperature range, increase the safety of the thermal management system of the energy storage cabinet, and improve the service life of the battery. The surface of the water-cooling transfer tube is embedded with a B1-level rubber-plastic insulation pipe sleeve to prevent condensed water from dripping and causing a system short circuit. The pipe connection adopts a quick-plug connector, which is easy to install and has high sealing performance. While meeting the liquid cooling heat dissipation, it improves the safety and stability of the energy storage cabinet system.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements without departing from the principle of the present invention, and these improvements should also be regarded as within the protection scope of the present invention.

Claims

1. A liquid cooling and multifunctional integrated energy storage cabinet system, Features: It includes a cabinet system (1), an electrical system (2), a liquid cooling system (3) and a battery pack (4); The cabinet system (1) is mainly composed of a steel frame (5) and an external skin (6); the steel frame (5) is composed of a load-bearing beam (7), a first unit fixed beam (8), a second unit fixed beam (9), a first PCS fixed beam (10), a second PCS fixed beam (11), an electrical panel fixed beam (12), a high-voltage box fixed beam (13) and a battery pack fixed beam (14); the first unit fixed beam (8), the second unit fixed beam (9), the first PCS fixed beam (10) and the second PCS fixed beam (11) are fixed in a control cabin of the steel frame (5); the electrical panel fixed beam (12), the high-voltage box fixed beam (13) and the battery pack fixed beam (14) are fixed in a battery cabin of the steel frame (5); The electrical system (2) comprises a water cooling unit (19), a unit bracket (20), a first PCS bracket (21), an energy storage converter PCS (22), a second PCS bracket (23), a fire detector (24), an air switch (25), an electrical panel (26), an energy management system EMS (27), a high-voltage box (28), a high-voltage box bracket (29) and an electronic display screen (30). The water cooling unit (19) is fixed to the second unit fixing beam (9) via the unit bracket (20). The energy storage converter PCS (22) is fixed to the second unit fixing beam (9) via the unit bracket (20). The CS (22) is fixed to the first PCS fixing beam (10) and the second PCS fixing beam (11) respectively through the first PCS bracket (21) and the second PCS bracket (23); the fire detector (24) and the circuit breaker (25) are fixed to the electrical panel fixing beam (12) through the electrical panel (26); the energy management system EMS (27) and the electronic display screen (30) are fixed to the battery compartment cabinet door (17); and the high-voltage box (28) is fixed to the high-voltage box fixing beam (13) through the high-voltage box bracket (29); The liquid cooling system (3) comprises a first water-cooling transfer tube (31), a second water-cooling transfer tube (32), a first rubber tube (33), a second rubber tube (34), a first metal tube (35), a second metal tube (36), a third water-cooling transfer tube (37) and a fourth water-cooling transfer tube (38), wherein the first water-cooling transfer tube (31) is fixed to a water outlet of a water cooling unit (19), the second water-cooling transfer tube (32) is fixed to a water inlet of a water cooling unit (19), and the first rubber tube (33) and the second rubber tube (34) are respectively The first water-cooling adapter tube (31) and the second water-cooling adapter tube (32) are connected; the first metal tube (35) and the second metal tube (36) are respectively connected to the first rubber tube (33) and the second rubber tube (34); the third water-cooling adapter tube (37) is connected to the first metal tube (35); the quick-plug end of the third water-cooling adapter tube (37) is connected to the water inlet of the battery pack (4); the fourth water-cooling adapter tube (38) is connected to the second metal tube (36); the quick-plug end of the fourth water-cooling adapter tube (38) is connected to the water outlet of the battery pack (4).

2. The liquid cooling and multifunctional integrated energy storage cabinet system as claimed in claim 1, Features: The outer skin (6) is composed of a bulkhead (15), a control compartment door (16), a battery compartment door (17) and a rear door (18), and the bulkhead (15) is welded to a steel frame (5) as a whole.

3. The liquid cooling and multifunctional integrated energy storage cabinet system as claimed in claim 2, Features: The control compartment cabinet door (16) is fixed to the bulkhead (15) via a hinge, and the control compartment cabinet door (16) is located on the left side of the cabinet system (1).

4. The liquid cooling and multifunctional integrated energy storage cabinet system as claimed in claim 3, Features: The battery compartment door (17) is fixed to the bulkhead (15) via a hinge, and the battery compartment door (17) is located on the right side of the cabinet system (1). The rear cabinet door (18) is fixed to the bulkhead (15) via bolts, and is located at the rear of the cabinet system (1).

5. The liquid cooling and multifunctional integrated energy storage cabinet system as claimed in claim 4, Features: The control compartment cabinet door (16) and the battery compartment cabinet door (17) are both provided with heat dissipation holes and ventilation shutters, which serve as air inlets for the cabinet system (1).

6. The liquid cooling and multifunctional integrated energy storage cabinet system as claimed in claim 5, Features: A U-shaped sealing strip is provided between the control compartment door (16), the battery compartment door (17) and the bulkhead (15), and a sealing gasket is provided between the rear cabinet door (18) and the bulkhead (15).

7. The liquid cooling and multifunctional integrated energy storage cabinet system as claimed in claim 6, Features: The overall material of the steel frame (5) is Q355.

8. The liquid cooling and multifunctional integrated energy storage cabinet system as claimed in claim 7, Features: The overall material of the outer skin (6) is SPCC cold-rolled steel plate.

9. The liquid cooling and multifunctional integrated energy storage cabinet system as claimed in claim 8, Features: The first water-cooling transfer tube (31), the second water-cooling transfer tube (32), the third water-cooling transfer tube (37) and the fourth water-cooling transfer tube (38) are made of nylon + 6061-T6 aluminum alloy.

10. The liquid cooling and multifunctional integrated energy storage cabinet system according to claim 9, Features: The first metal tube (35) and the second metal tube (36) are made of 304 stainless steel.

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