Multi-air-duct grouped heat dissipation type liquid cooling energy storage cabinet

Abstract

A battery pack, a liquid cooling circulator, a high-voltage control cabinet and a circuit board are arranged in a cabinet body of the liquid cooling energy storage cabinet, the interior of the cabinet body is of a transversely-separated double-bin structure, one end of a circulator air inlet fan of the liquid cooling circulator is communicated with a liquid cooling air inlet in the right side of a circuit bin, and the other end of the circulator air inlet fan of the liquid cooling circulator is communicated with a liquid cooling air outlet in the right side of the circuit bin. One end of an air inlet of the high-voltage control cabinet is communicated with a high-voltage air inlet in the left side of the circuit bin, an air blowing and suction all-in-one machine is arranged on the left side of the battery bin in an embedded mode, and a battery air inlet and a battery air outlet are sequentially formed in the surface of the left side of the battery bin from top to bottom. According to the invention, independent air ducts with independent accessories are obtained through split type separation distribution, so that the efficient heat dissipation effect on each accessory is realized, air passing between the battery pack and the liquid cooling plate is realized, the heat dissipation effect of the liquid cooling plate is accelerated, and efficient circulating type flow channel heat dissipation of the battery compartment is realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of energy storage cabinets, and specifically relates to a liquid-cooled energy storage cabinet with multi-duct group heat dissipation. Background Art

[0002] An energy storage cabinet is an electrical cabinet used to store electrical energy. Several battery modules are installed inside the energy storage cabinet to store electrical energy generated by solar energy, wind energy, etc. or directly store electrical energy. The energy storage cabinet supplies the stored electrical energy to electrical equipment for use as a power source. During the power supply process of the energy storage cabinet, the battery module will generate a large amount of heat energy. If the heat energy cannot be effectively dissipated, the temperature inside the energy storage cabinet will rise sharply, affecting the normal use of the energy storage cabinet and even causing a fire. Therefore, heat dissipation inside the energy storage cabinet is very important.

[0003] The existing heat dissipation method of energy storage cabinets is mainly to introduce fresh air from the outside into the energy storage cabinet through a cooling fan, and dissipate the heat of the energy storage cabinet through the flow of air. This method of heat dissipation that only relies on natural air convection has a poor heat dissipation effect. There is also a method of using a circulating liquid cold plate to dissipate the heat from the battery pack, the main heat source inside the energy storage cabinet, although it can improve the heat dissipation effect of the energy storage cabinet.

[0004] However, since the components inside the energy storage cabinet are densely distributed, there are also various accessories such as various control cabinets, circuit boards and liquid cooling boxes inside. However, these accessories will also generate a large amount of heat during the use of high-voltage output. If these parts are only cooled by air, the air cooling effect will drop sharply due to the complex and messy air ducts inside the energy storage cabinet. The cold air cannot be evenly blown to each component, resulting in poor uniformity of heat dissipation inside the overall energy storage cabinet. Summary of the invention

[0005] In order to solve the above problems, the present invention proposes a multi-duct group heat dissipation liquid-cooled energy storage cabinet, wherein a battery pack, a liquid-cooled circulation machine, a high-voltage control cabinet and a circuit board are arranged inside the cabinet body of the liquid-cooled energy storage cabinet, the interior of the cabinet body is a horizontally separated double-compartment structure, the front interior of the cabinet body is a battery compartment, the back interior of the cabinet body is a circuit compartment, and the middle outer surface of the circuit compartment is vertically provided with a liquid-cooled air outlet and a high-pressure air outlet in sequence from top to bottom, the inner side of the liquid-cooled air outlet is provided with an L-shaped bent circulation machine air outlet channel, the inner side of the high-pressure air outlet is provided with an L-shaped bent high-pressure air outlet channel, the inner end of the circulation machine air outlet channel is horizontally connected to the air outlet of the liquid-cooled circulation machine, the inner end of the high-pressure air outlet channel is horizontally connected to the air outlet of the high-voltage control cabinet, one end of the circulation machine air inlet of the liquid-cooled circulation machine is connected to the liquid-cooled air inlet on the right side of the circuit compartment, one end of the air inlet of the high-voltage control cabinet is connected to the high-pressure air inlet on the left side of the circuit compartment, and the battery A plurality of battery packs are stacked horizontally inside the warehouse, and a blower and suction machine is embedded in the left side of the battery warehouse. Battery air inlets and battery air outlets are arranged in sequence on the upper and lower surfaces of the left side of the battery warehouse, the blowing port at the upper end of the blower and suction machine is connected to the battery air inlet, and the suction port at the lower end of the blower and suction machine is connected to the battery air outlet, and a partition guide is arranged horizontally between the blowing port and the air inlet on the inner surface of the blower and suction machine, one end of the partition guide is connected to the blower and suction machine, and the other end of the partition guide is connected to the end of the battery pack, and a liquid cooling plate is provided at the bottom of the battery pack, so that the accessories inside the liquid-cooled energy storage cabinet that were originally vertically stacked and integrated are distributed through split separation to obtain independent separate air ducts for each accessory, thereby achieving efficient heat dissipation effect for each accessory, and also accelerating the heat dissipation effect of the liquid cooling plate by air passing between the battery pack and the liquid cooling plate, thereby achieving efficient circulating flow channel heat dissipation for the battery warehouse.

[0006] The cabinet body is in the shape of a rectangular combination cabinet, and a partition plate is horizontally provided on the inner rear side of the cabinet body. The front side of the partition plate is a battery compartment, and the rear side of the partition plate is a circuit compartment. The left outer surface of the cabinet body of the battery compartment is provided with a battery air inlet and a battery air outlet, the left surface of the cabinet body of the circuit compartment is provided with a high-pressure air inlet, the right surface of the cabinet body of the circuit compartment is provided with a liquid cooling air inlet, and the rear surface of the cabinet body of the circuit compartment is provided with a liquid cooling air outlet and a high-pressure air outlet. The battery air inlet, battery air outlet, high-pressure air inlet, high-pressure air outlet, liquid cooling air inlet and liquid cooling air outlet are all grille-type dust-proof air outlets. By horizontally dividing the originally vertically arranged energy storage cabinet body, the liquid cooling circulation machine and the high-voltage control cabinet can be placed independently, which not only ensures that the battery pack has an independent air duct, but also facilitates the setting of independent air ducts of the liquid cooling circulation machine and the high-voltage control cabinet, thereby increasing the heat dissipation efficiency.

[0007] The battery pack is an integrated combined battery pack, and a battery optimizer is provided at the front end of the battery pack, and a liquid cooling pipeline is provided on the outer side of the rear end of the battery pack. The liquid cooling plate on the bottom of the battery pack is connected to the liquid cooling circulation machine through the liquid cooling pipeline, and a horizontal guide gap is provided between the liquid cooling plate on the bottom of the battery pack and another group of liquid cooling plates below. The left end of the guide gap is respectively connected to the upper side and the lower side of the partition guide plate, and the right end of the guide gap is longitudinally connected to each other. The partition guide plate will set the battery pack in the form of a C-shaped circulation guide air duct in the battery compartment of the battery pack through the guide gap in the form of blowing and sucking from top to bottom of the blowing and sucking machine. By setting the blowing and sucking machine on one side of the battery pack and also setting a partition guide plate, blowing on the upper side and sucking on the lower side are realized, thereby forming a C-shaped air duct between the stacked battery packs, which can form an efficient and fast heat dissipation blowing between the battery pack and the liquid cooling plate, thereby ensuring sufficient heat dissipation effect.

[0008] The circuit compartment is divided into a liquid-cooled circulation chamber and a high-pressure control chamber on the left and right by the circulation machine air outlet flow channel and the high-pressure air outlet flow channel. A liquid-cooled circulation machine is horizontally arranged above the liquid-cooled circulation chamber, a terminal board is arranged below the liquid-cooled circulation machine, and a high-pressure control cabinet is horizontally arranged below the high-pressure control chamber. By arranging the liquid-cooled circulation chamber and the high-pressure control chamber in the middle of the circuit compartment with the circulation machine air outlet flow channel and the high-pressure air outlet flow channel as independent separations on the left and right, it is convenient for the liquid-cooled circulation machine and the high-pressure control cabinet to obtain independent heat dissipation air ducts, which can effectively increase the heat dissipation efficiency of each and prevent air duct turbulence and convection.

[0009] The circulation machine air outlet flow channel and the high-pressure air outlet flow channel are both right-angle L-shaped turning air guide flow channels. The longitudinal vertical outlets of the circulation machine air outlet flow channel are connected to the liquid-cooled air outlet and the high-pressure air outlet on the rear surface of the cabinet. The inner sides of the circulation machine air outlet flow channel and the high-pressure air outlet flow channel are provided with arc guide plates. The inner right side of the circulation machine air outlet flow channel is connected to the air outlet box of the liquid-cooled circulation machine, and the inner left side of the high-pressure air outlet flow channel is connected to the air outlet of the high-voltage control cabinet. The original straight-through air duct is converted into an L-shaped air duct for rear air outlet through the L-shaped flow channel, which can maximize the use of the space inside the energy storage cabinet, realize air duct guidance, and prevent the heat dissipation wind from interfering with the air duct due to other equipment inside the energy storage cabinet.

[0010] Beneficial effects:

[0011] The accessories inside the liquid-cooled energy storage cabinet, which were originally stacked and integrated together vertically, are separated and distributed in a split manner to obtain independent separate air ducts for each accessory, thereby achieving efficient heat dissipation for each accessory. In addition, the air flow between the battery pack and the liquid cooling plate is accelerated to accelerate the heat dissipation effect of the liquid cooling plate, achieving efficient circulating flow channel heat dissipation for the battery compartment.

[0012] By dividing the originally vertically arranged energy storage cabinet body into horizontal partitions, the liquid cooling circulation machine and the high-voltage control cabinet can be placed independently. This not only ensures that the battery pack has an independent air duct, but also facilitates the setting of independent air ducts for the liquid cooling circulation machine and the high-voltage control cabinet, thereby increasing heat dissipation efficiency.

[0013] By arranging an integrated blowing and suction machine on one side of the battery pack and also arranging a partition guide plate, blowing on the upper side and suction on the lower side are achieved, thereby forming a C-shaped air duct between the stacked battery packs, which can form efficient and fast heat dissipation blowing between the battery pack and the liquid cooling plate, thereby ensuring sufficient heat dissipation effect.

[0014] By setting up the liquid cooling circulation chamber and the high-pressure control chamber in the middle of the circuit compartment with the circulation machine outlet flow channel and the high-pressure outlet flow channel separated on the left and right, it is convenient for the liquid cooling circulation machine and the high-pressure control cabinet to obtain independent heat dissipation air ducts, which can effectively increase the heat dissipation efficiency of each and prevent air duct turbulence and convection.

[0015] The original straight-through air duct is converted into an L-shaped air duct with rear air outlet through the L-shaped flow channel, which can maximize the use of the space inside the energy storage cabinet, realize the diversion of the air duct, and prevent the heat dissipation wind from interfering with the air duct due to other equipment inside the energy storage cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view schematic diagram of a liquid-cooled energy storage cabinet with multi-duct group heat dissipation;

[0017] Figure 2 It is a schematic diagram of the back of a liquid-cooled energy storage cabinet with multi-duct group heat dissipation;

[0018] Figure 3 This is a view inside the battery compartment of a liquid-cooled energy storage cabinet with multi-duct group heat dissipation;

[0019] Figure 4 This is a view inside the control compartment of a multi-duct group heat dissipation liquid-cooled energy storage cabinet;

[0020] In the figure; 1. battery compartment, 11. integrated blower and suction machine, 12. partition guide plate, 13. battery optimizer, 14. battery pack, 15. liquid cooling plate, 16. liquid cooling pipeline, 2. battery air inlet, 3. battery air outlet, 4. liquid cooling circulation chamber, 41. liquid cooling circulation machine, 42. circulation machine air inlet fan, 43. circulation machine air outlet duct, 5. liquid cooling air inlet, 6. liquid cooling air outlet, 7. high-pressure control chamber, 71. high-pressure control cabinet, 72. high-pressure air outlet duct, 8. high-pressure air inlet, 9. high-pressure air outlet. DETAILED DESCRIPTION

[0021] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0022] Battery compartment 1, air blowing and suction machine 11, partition guide plate 12, battery optimizer 13, battery pack 14, liquid cooling plate 15, liquid cooling pipeline 16, battery air inlet 2, battery air outlet 3, liquid cooling circulation chamber 4, liquid cooling circulation machine 41, circulation machine air inlet fan 42, circulation machine air outlet channel 43, liquid cooling air inlet 5, liquid cooling air outlet 6, high-pressure control chamber 7, high-pressure control cabinet 71, high-pressure air outlet channel 72, high-pressure air inlet 8, high-pressure air outlet 9.

[0023] like Figure 1 , 2 , 3, 4 as shown;

[0024] A multi-duct group heat dissipation liquid-cooled energy storage cabinet, the cabinet of the liquid-cooled energy storage cabinet is provided with a battery pack 14, a liquid-cooled circulation machine 41, a high-voltage control cabinet 71 and a circuit board, the interior of the cabinet is a horizontally separated double-compartment structure, the front interior of the cabinet is a battery compartment 1, the back interior of the cabinet is a circuit compartment, the middle outer surface of the circuit compartment is vertically provided with a liquid-cooled air outlet 6 and a high-pressure air outlet 9 in sequence, the inner side of the liquid-cooled air outlet 6 is provided with an L-shaped bent circulation machine air outlet duct 43, the inner side of the high-pressure air outlet 9 is provided with an L-shaped bent high-pressure air outlet duct 72, the inner end of the circulation machine air outlet duct 43 is horizontally connected to the air outlet of the liquid-cooled circulation machine 41, and the high-pressure air outlet 43 is connected to the circuit compartment 1. The inner end of the flow channel 72 is horizontally connected to the air outlet of the high-voltage control cabinet 71, one end of the circulation machine air inlet 42 of the liquid-cooled circulation machine 41 is connected to the liquid-cooled air inlet 5 on the right side of the circuit compartment, and one end of the air inlet of the high-voltage control cabinet 71 is connected to the high-voltage air inlet 8 on the left side of the circuit compartment. A plurality of battery packs 14 are stacked horizontally inside the battery compartment 1, and a blower and suction machine 11 is embedded on the left side of the battery compartment 1. A battery air inlet 2 and a battery air outlet 3 are sequentially arranged on the upper and lower surfaces of the left side of the battery compartment 1. The blowing port at the upper end of the blower and suction machine 11 is connected to the battery air inlet 2, and the suction port at the lower end of the blower and suction machine 11 is connected to the battery air outlet 3. 1, a partition guide plate 12 is horizontally separated between the air outlet and the air inlet on the inner surface of the cabinet, one end of the partition guide plate 12 is connected to the air blowing and suction integrated machine 11, and the other end of the partition guide plate 12 is connected to the end of the battery pack 14. The bottom of the battery pack 14 is provided with a liquid cooling plate 15. The cabinet is in the shape of a rectangular combination cabinet, and a partition plate is horizontally provided on the inner rear side of the cabinet. The front side of the partition plate is the battery compartment 1, and the rear side of the partition plate is the circuit compartment. The left outer surface of the cabinet of the battery compartment 1 is provided with a battery air inlet 2 and a battery air outlet 3, the left surface of the cabinet of the circuit compartment is provided with a high-pressure air inlet 8, the right surface of the cabinet of the circuit compartment is provided with a liquid cooling air inlet 5, and the rear surface of the cabinet of the circuit compartment is provided with a liquid cooling air inlet 5. A liquid cooling air outlet 6 and a high pressure air outlet 9 are provided. The battery air inlet 2, battery air outlet 3, high pressure air inlet 8, high pressure air outlet 9, liquid cooling air inlet 5 and liquid cooling air outlet 6 are all grille-type dustproof air outlets. The battery pack 14 is an integrated combined battery pack 14. A battery optimizer 13 is provided at the front end of the battery pack 14. A liquid cooling pipeline 16 is provided on the outer side of the rear end of the battery pack 14. The liquid cooling plate 15 on the bottom of the battery pack 14 is connected to the liquid cooling circulation machine 41 through the liquid cooling pipeline 16. A transverse guide gap is provided between the liquid cooling plate 15 on the bottom of the battery pack 14 and another group of liquid cooling plates 15 below. The left end of the guide gap is respectively connected to the upper side and the lower side of the partition guide plate 12, and the right end of the guide gap is longitudinally connected to each other.The partition guide plate 12 allows the blower and suction machine 11 to blow upward and suck downward, and the C-shaped circulation guide air duct inside the battery compartment 1 where the battery pack 14 is set is formed through the guide gap. The circuit compartment is divided into a liquid-cooled circulation chamber 4 and a high-pressure control chamber 7 by the circulation machine outlet flow channel 43 and the high-pressure outlet flow channel 72. A liquid-cooled circulation machine 41 is horizontally arranged above the liquid-cooled circulation chamber 4, a terminal board is arranged below the liquid-cooled circulation machine 41, and a high-pressure control cabinet is arranged horizontally below the high-pressure control chamber 7. 71, the circulating machine air outlet flow channel 43 and the high-pressure air outlet flow channel 72 are both right-angle L-shaped turning air guide flow channels, the longitudinal vertical outlets of the circulating machine air outlet flow channel 43 are connected to the liquid cooling air outlet 6 and the high-pressure air outlet 9 on the rear surface of the cabinet, and the inner sides of the circulating machine air outlet flow channel 43 and the high-pressure air outlet flow channel 72 are both provided with arc guide plates, the inner right side of the circulating machine air outlet flow channel 43 is connected to the air outlet box of the liquid cooling circulating machine 41, and the inner left side of the high-pressure air outlet flow channel 72 is connected to the air outlet of the high-voltage control cabinet 71. ,

[0025] Implementation examples;

[0026] When the energy storage cabinet is in use, the coolant inside the liquid cooling plate 15 is circulated by the liquid cooling circulator 41 to cool down the battery pack 14 continuously.

[0027] And also start the circulation machine air inlet fan 42, the air inlet fan of the high-voltage control cabinet 71 and the air blowing and suction integrated machine 11 when in use;

[0028] The liquid cooling circulation machine 41 draws air from the circulation air inlet on the right side of the cabinet through the circulation machine air inlet fan 42, passes the cold air through the liquid cooling circulation machine 41 to continuously cool the inside, and then leads out from the circulation machine air outlet 43 in an L-shape, and leads out from the liquid cooling air outlet 6, thus realizing a directional air duct.

[0029] The high-voltage control cabinet 71 uses a fan to draw air from the high-voltage air inlet 8 on the left side of the cabinet body, and the cold air passes through the high-voltage control cabinet 71 to continuously cool the interior thereof, and is then led out in an L-shaped manner from the high-voltage air outlet 72 and then from the high-voltage air outlet 9, thereby realizing a directional air duct.

[0030] When the air blowing and suction machine 11 is started, the upper end blows air into the battery compartment 1 of the cabinet, and the lower end sucks air from the battery compartment 1, and the inner side of the air blowing and suction machine 11 is divided into upper and lower parts by the partition guide plate 12, thereby achieving the effect of blowing up and sucking down, and the blown air is blown out from the gap between the battery pack 14 and the liquid cooling plate 15, thereby accelerating the diversion and heat dissipation of the liquid cooling plate 15, and can also replace a part of the cold air of the liquid cooling plate 15 downward to accelerate the heat dissipation of the battery pack 14 and the liquid cooling plate 15 on the lower side, and finally lead out from the battery air outlet 3, thereby realizing C-type air duct cooling.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-channel group heat dissipation liquid-cooled energy storage cabinet, wherein a battery pack, a liquid cooling cycle machine, a high-voltage control cabinet and a circuit board are arranged inside the cabinet of the liquid-cooled energy storage cabinet, characterized in that: The interior of the cabinet is a transversely separated double-compartment structure, the front interior of the cabinet is a battery compartment, the back interior of the cabinet is a circuit compartment, the middle outer surface of the circuit compartment is vertically provided with a liquid cooling outlet and a high-pressure outlet in sequence from top to bottom, the inner side of the liquid cooling outlet is provided with an L-shaped bent circulation machine outlet flow channel, the inner side of the high-pressure outlet is provided with an L-shaped bent high-pressure outlet flow channel, the inner end of the circulation machine outlet flow channel is horizontally connected to the outlet of the liquid cooling circulation machine, the inner end of the high-pressure outlet flow channel is horizontally connected to the outlet of the high-voltage control cabinet, one end of the circulation machine inlet fan of the liquid cooling circulation machine is connected to the liquid cooling inlet on the right side of the circuit compartment, and the high-pressure control One end of the air inlet of the cabinet is connected with the high-voltage air inlet on the left side of the circuit compartment, a number of battery packs are horizontally stacked inside the battery compartment, a blower and suction machine is embedded on the left side of the battery compartment, and a battery air inlet and a battery air outlet are sequentially arranged on the upper and lower surfaces of the left side of the battery compartment, the blowing port at the upper end of the blower and suction machine is connected to the battery air inlet, and the suction port at the lower end of the blower and suction machine is connected to the battery air outlet, a partition guide is horizontally separated between the blowing port and the air inlet on the inner surface of the blower and suction machine, one end of the partition guide is connected to the blower and suction machine, and the other end of the partition guide is connected to the end of the battery pack, and a liquid cooling plate is provided at the bottom of each battery pack.

2. A multi-channel group heat dissipation liquid-cooled energy storage cabinet according to claim 1, characterized in that: The cabinet is in the shape of a rectangular combination cabinet, and a partition is horizontally arranged on the inner rear side of the cabinet. The front side of the partition is a battery compartment, and the rear side of the partition is a circuit compartment. The left outer surface of the cabinet of the battery compartment is provided with a battery air inlet and a battery air outlet, the left surface of the cabinet of the circuit compartment is provided with a high-pressure air inlet, the right surface of the cabinet of the circuit compartment is provided with a liquid cooling air inlet, and the rear surface of the cabinet of the circuit compartment is provided with a liquid cooling air outlet and a high-pressure air outlet. The battery air inlet, battery air outlet, high-pressure air inlet, high-pressure air outlet, liquid cooling air inlet and liquid cooling air outlet are all grille-type dust-proof air outlets.

3. The multi-channel group heat dissipation liquid-cooled energy storage cabinet according to claim 1 is characterized in that: The battery pack is an integrated combined battery pack, and a battery optimizer is provided at the front end of the battery pack, a liquid cooling pipeline is provided on the outer side of the rear end of the battery pack, the liquid cooling plate on the bottom of the battery pack is connected to the liquid cooling circulation machine through the liquid cooling pipeline, and a horizontal guide gap is provided between the liquid cooling plate on the bottom of the battery pack and another group of liquid cooling plates below, the left end of the guide gap is respectively connected to the upper side and the lower side of the partition guide plate, and the right end of the guide gap is longitudinally connected to each other, and the partition guide plate will set the C-shaped circulation guide duct inside the battery compartment of the battery pack in the form of blowing and sucking from top to bottom of the blowing and suction machine through the guide gap.

4. The multi-channel group heat dissipation liquid-cooled energy storage cabinet according to claim 1 is characterized in that: The circuit compartment is divided into a liquid-cooling circulation chamber and a high-pressure control chamber on the left and right by a circulation machine air outlet channel and a high-pressure air outlet channel. A liquid-cooling circulation machine is horizontally arranged above the liquid-cooling circulation chamber, a terminal board is arranged below the liquid-cooling circulation machine, and a high-pressure control cabinet is horizontally arranged below the high-pressure control chamber.

5. The multi-channel group heat dissipation liquid-cooled energy storage cabinet according to claim 1 is characterized in that: The circulating machine air outlet flow channel and the high-pressure air outlet flow channel are both right-angle L-shaped turning air guide flow channels. The longitudinal vertical outlets of the circulating machine air outlet flow channel are connected to the liquid-cooled air outlet and the high-pressure air outlet on the rear surface of the cabinet. The inner sides of the circulating machine air outlet flow channel and the high-pressure air outlet flow channel are both provided with arc guide plates. The inner right side of the circulating machine air outlet flow channel is connected to the air outlet box of the liquid-cooled circulating machine, and the inner left side of the high-pressure air outlet flow channel is connected to the air outlet of the high-voltage control cabinet.

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