Control cabinet and energy storage system

Abstract

The utility model relates to a control cabinet and an energy storage system, the control cabinet comprises a cabinet body, and a first electrical component, a second electrical component, a first air draft device, a second air draft device and a wind shielding structure which are arranged in the cabinet body, and a first heat radiation air channel is arranged in a shell of the first electrical component; a first air inlet, a second air inlet and an air outlet are formed in the cabinet body; a shell of the first electrical component is provided with a first suction opening and a first exhaust opening, and a shell of the second electrical component is provided with a second suction opening and a second exhaust opening; the space among the inner side surface of the cabinet body, the outer surface of the first electrical component and the outer surface of the second electrical component is a ventilation space, and the air blocking structure is used for dividing the ventilation space into a first air inlet space, a second air inlet space and an air exhaust space. According to the energy storage system of the utility model, the heat dissipation effect of the electrical elements in the first electrical component and the second electrical component can be effectively ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of energy storage, and relates to a control cabinet and an energy storage system. Background Art

[0002] The control cabinet of the energy storage system usually is provided with a PCS (Power Conversion System, energy storage converter) and a BMS (Battery Management System, battery management system). The main function of the PCS is to control the charging and discharging processes of the battery packs in the battery cabinet of the energy storage system and perform the conversion between AC and DC power. It is the core component for realizing the bidirectional flow of electric energy between the energy storage system and the power grid. The BMS is mainly used to manage the battery packs, including detecting parameters such as charging, discharging, and voltage of the battery packs.

[0003] In the control cabinet in the related art, the hot air coming out of the PCS and the BMS will flow back to the air inlet of the control cabinet, resulting in repeated heat absorption and affecting the heat dissipation effect of the electrical components in the PCS and the BMS. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is: aiming at the problem that in the control cabinet in the related art, the hot air coming out of the PCS and the BMS will flow back to the air inlet of the control cabinet, resulting in repeated heat absorption and affecting the heat dissipation effect of the electrical components in the PCS and the BMS, a control cabinet and an energy storage system are provided.

[0005] To solve the above technical problem, the utility model provides a control cabinet, which includes a cabinet body, and a first electrical component, a second electrical component, a first air extraction device, a second air extraction device and a wind shielding structure arranged in the cabinet body. A first heat dissipation air duct is arranged in the outer shell of the first electrical component, and a second heat dissipation air duct is arranged in the outer shell of the second electrical component; the first air extraction device is arranged in the first heat dissipation air duct or outside the first electrical component, and the second air extraction device is arranged in the second heat dissipation air duct or outside the second electrical component;

[0006] The cabinet body is provided with a first air inlet, a second air inlet and an air outlet; the outer shell of the first electrical component is provided with a first air extraction port and a first air discharge port, and the outer shell of the second electrical component is provided with a second air extraction port and a second air discharge port;

[0007] The space between the inner side surface of the cabinet body, the outer surface of the first electrical component and the outer surface of the second electrical component is a ventilation space. The wind shielding structure is used to divide the ventilation space into a first air inlet space, a second air inlet space and an air discharge space;

[0008] The first air extraction device is used to introduce the air outside the cabinet into the first heat dissipation air duct through the first air inlet, the first air inlet space and the first air extraction port, and discharge it from the cabinet through the first air discharge port, the air discharge space and the air outlet; the second air extraction device is used to introduce the air outside the cabinet into the second heat dissipation air duct through the second air inlet, the second air inlet space and the second air extraction port, and discharge it from the cabinet through the second air discharge port, the air discharge space and the air outlet.

[0009] According to the control cabinet of the embodiment of the present invention, a wind blocking structure is provided to divide the ventilation space between the inner surface of the cabinet, the outer surface of the first electrical component and the outer surface of the second electrical component into a first air inlet space, a second air inlet space and an air discharge space. The first air extraction device introduces the air outside the cabinet into the first heat dissipation air duct through the first air inlet, the first air inlet space and the first air extraction port, cools the electrical components in the first electrical component, and then discharges it from the cabinet through the first air discharge port, the air discharge space and the air outlet. The second air extraction device introduces the air outside the cabinet into the second heat dissipation air duct through the second air inlet, the second air inlet space and the second air extraction port, cools the electrical components in the second electrical component, and then discharges it from the cabinet through the second air discharge port, the air discharge space and the air outlet. Compared with the prior art, the air inlet spaces (the first air inlet space, the second air inlet space) are not directly connected to the air discharge space, but are connected through the heat dissipation air ducts built in the first electrical component and the second electrical component. The hot air discharged from the air outlet will not flow back to the first air inlet and the second air inlet inside the cabinet again, preventing the heat from being repeatedly absorbed, avoiding overheating of the electrical components in the first electrical component and the second electrical component, and effectively ensuring the heat dissipation effect of the electrical components in the first electrical component and the second electrical component.

[0010] Optionally, the first electrical component is an energy storage converter, and the second electrical component is a battery management system.

[0011] Optionally, the first air extraction port and the first air discharge port are located on different sides of the housing of the first electrical component; and / or,

[0012] The second air extraction port and the second air discharge port are located on different sides of the housing of the second electrical component.

[0013] Optionally, the first air inlet and the second air inlet are located on the same side of the cabinet.

[0014] Optionally, a first side plate of the cabinet is provided on one side of the cabinet. The first air inlet and the second air inlet are arranged side by side along a first direction on the first side plate of the cabinet. The first electrical component and the second electrical component are arranged at intervals along the first direction to form an isolation gap therebetween;

[0015] In a second direction perpendicular to the first direction, the first air inlet space is located between the first side plate of the cabinet body and the first electrical component, and the second air inlet space is located between the first side plate of the cabinet body and the second electrical component.

[0016] Optionally, the housing of the first electrical component includes a first outer peripheral wall, a first top wall, and a first bottom wall. The first outer peripheral wall is connected between the first top wall and the first bottom wall. The first outer peripheral wall includes a first side wall, a second side wall, a third side wall, and a fourth side wall. The first side wall and the third side wall are oppositely arranged in the second direction, and the second side wall and the fourth side wall are oppositely arranged in the first direction. The first air extraction opening is provided on the first side wall, and the first air discharge opening is provided on at least one of the second side wall, the third side wall, the fourth side wall, and the first top wall.

[0017] The housing of the second electrical component includes a second outer peripheral wall, a second top wall, and a second bottom wall. The second outer peripheral wall is connected between the second top wall and the second bottom wall. The second outer peripheral wall includes a fifth side wall, a sixth side wall, a seventh side wall, and an eighth side wall. The fifth side wall and the seventh side wall are oppositely arranged in the second direction, and the sixth side wall and the eighth side wall are oppositely arranged in the first direction. The second air extraction opening is provided on the fifth side wall, and the second air discharge opening is provided on at least one of the sixth side wall, the seventh side wall, the eighth side wall, and the second top wall.

[0018] Optionally, a first air inlet shutter is further included. The first air inlet shutter is provided on the first air inlet, and a first dust filter screen is provided on the side of the first air inlet shutter close to the first air inlet space.

[0019] A second air inlet shutter is further included. The second air inlet shutter is provided on the second air inlet, and a second dust filter screen is provided on the side of the second air inlet shutter close to the second air inlet space.

[0020] Optionally, an opening and closing door panel is further included. The second air inlet shutter is detachably connected to the opening and closing door panel. The opening and closing door panel is hinged to one side edge of the second air inlet, and a sealing rubber ring is provided at the outer edge of the opening and closing door panel.

[0021] The opening and closing door panel can open or close the second air inlet. When the opening and closing door panel closes the second air inlet, the sealing rubber ring seals the gap between the opening and closing door panel and the hole edge of the second air inlet.

[0022] Optionally, the cabinet body includes a cabinet body with an open top and a top cover hermetically connected to the open top of the cabinet body. The air outlet is provided on the top cover.

[0023] Optionally, the top cover is detachably attached to the cabinet body;

[0024] Alternatively,

[0025] the top cover is rotatably connected to one side of the top opening of the cabinet body.

[0026] Optionally, the top cover includes a top cover body and a protruding portion. The bottom side of the protruding portion is connected to the side of the top cover body away from the first side plate of the cabinet. The protruding portion has a cavity with a closed top. A bottom opening communicating with the exhaust space is provided at the bottom end of the cavity. An air outlet is provided on the side of the cavity facing the first side plate of the cabinet.

[0027] Optionally, an air outlet louver is further included. The air outlet louver is provided on the air outlet, and a third dust filter screen is provided on the side of the air outlet louver close to the cavity.

[0028] Optionally, a first drain trough is provided at the bottom of the cavity, and at least one end of the first drain trough communicates with the outside;

[0029] A water blocking structure is provided in the cavity for blocking the water entering the cavity from the air outlet in the first drain trough to prevent water from entering the exhaust space.

[0030] Optionally, the water blocking structure includes a first water baffle and a second water baffle. The first water baffle is arranged at intervals in the second direction between the second water baffle and the air outlet. The top end of the first water baffle is connected to the top side of the cavity, and the bottom end of the first water baffle is suspended in the cavity. The top end of the second water baffle is connected to the bottom side of the cavity, and the top end of the second water baffle is suspended in the cavity;

[0031] The top end surface of the second water baffle is located above the bottom end surface of the first water baffle, and the first drain trough is formed between the second water baffle and the air outlet.

[0032] Optionally, the cabinet is an insulating member;

[0033] The outer surface of the first electrical component is spaced from the inner surface of the cabinet, and the outer surface of the second electrical component is spaced from the inner surface of the cabinet.

[0034] Optionally, a first insulating spacer is further included. The first insulating spacer is arranged between the inner surface of the bottom of the cabinet and the bottom surface of the first electrical component to space the first electrical component from the bottom of the cabinet;

[0035] It further includes a second insulating spacer block, which is arranged between the inner surface of the bottom of the cabinet body and the bottom surface of the second electrical component, so that the second electrical component is spaced from the bottom of the cabinet body.

[0036] Optionally, a second drain groove communicating with the outside is provided on the inner surface of the bottom of the cabinet body, and the second drain groove is located below the first air inlet space;

[0037] and / or,

[0038] a third drain groove communicating with the outside is provided on the inner surface of the bottom of the cabinet body, and the third drain groove is located below the second air inlet space;

[0039] and / or,

[0040] a fourth drain groove communicating with the outside is provided on the inner surface of the bottom of the cabinet body, and the fourth drain groove is located below the first electrical component and the second electrical component;

[0041] and / or,

[0042] a fifth drain groove communicating with the outside is provided on the inner surface of the bottom of the cabinet body, and the fifth drain groove is located on the side of the first electrical component and the second electrical component away from the first side plate of the cabinet body.

[0043] Optionally, it further includes a first support rib plate and a second support rib plate, and the first support rib plate and the second support rib plate are fixed on opposite sides of the bottom surface of the cabinet body.

[0044] Optionally, it further includes a first support rib plate fixing block and a second support rib plate fixing block, and the first support rib plate fixing block and the second support rib plate fixing block are fixed on the inner surface of the bottom of the cabinet body, and threaded holes are provided on the first support rib plate fixing block and the second support rib plate fixing block;

[0045] The first support rib plate is fixedly connected to the first support rib plate fixing block by bolts, and the second support rib plate is fixedly connected to the second support rib plate fixing block by bolts.

[0046] Optionally, the wind shielding structure includes an intermediate wind shielding member, a first side wind shielding plate and a second side wind shielding plate; along the second direction, the intermediate wind shielding member is located on the side of the isolation gap close to the first side plate of the cabinet body;

[0047] The top of the intermediate wind shielding member is connected to the inner surface of the top of the cabinet body, the bottom of the intermediate wind shielding member is connected to the inner surface of the bottom of the cabinet body, one side of the intermediate wind shielding member along the second direction is connected to the first side plate of the cabinet body, and the other side of the intermediate wind shielding member along the second direction is connected to the first electrical component and the second electrical component;

[0048] The first side wind deflector is arranged on the side of the first air inlet space away from the second air inlet space. The top of the first side wind deflector is connected to the inner surface of the top of the cabinet body, and the bottom of the first side wind deflector is connected to the inner surface of the bottom of the cabinet body. The first side plate of the cabinet body, the first side wind deflector, the inner surface of the top of the cabinet body, the inner surface of the bottom of the cabinet body and the outer shell of the first electrical component enclose the first air inlet space;

[0049] The second side wind deflector is arranged on the side of the second air inlet space away from the first air inlet space. The top of the second side wind deflector is connected to the inner surface of the top of the cabinet body, and the bottom of the second side wind deflector is connected to the inner surface of the bottom of the cabinet body. The first side plate of the cabinet body, the second side wind deflector, the inner surface of the top of the cabinet body, the inner surface of the bottom of the cabinet body and the outer shell of the second electrical component enclose the second air inlet space.

[0050] Optionally, the intermediate wind deflector includes a first wind deflector and a second wind deflector. One side of the first wind deflector along the second direction is connected to the first side plate of the cabinet body, and the other side of the first wind deflector along the second direction is connected to the first electrical component. One side of the second wind deflector along the second direction is connected to the first side plate of the cabinet body, and the other side of the second wind deflector along the second direction is connected to the second electrical component.

[0051] Optionally, the first wind deflector includes a first wind deflector body, a first flanging and a second flanging. The first flanging is connected to one side of the first wind deflector body along the second direction and bends away from the second air inlet space. The second flanging is connected to the other side of the first wind deflector body along the second direction and bends away from the first air inlet space. The first flanging fits against the inner side surface of the first side plate of the cabinet body, and the second flanging connects to the first electrical component;

[0052] The second wind deflector includes a second wind deflector body and a third flanging. The second wind deflector body is attached to the surface of the first wind deflector body away from the first air inlet space. One side of the second wind deflector body along the second direction is connected to the inner side surface of the first side plate of the cabinet body. The third flanging is connected to the other side of the second wind deflector body along the second direction and bends away from the first air inlet space. The third flanging connects to the second electrical component;

[0053] The first side wind deflector includes a first side wind deflector body, a fourth flange, and a fifth flange. The fourth flange is connected to one side of the first side wind deflector body along the second direction and bends towards the second air inlet space. The fifth flange is connected to the other side of the first side wind deflector body along the second direction and bends away from the second air inlet space. The fourth flange fits against the inner surface of the first side plate of the cabinet body, and the fifth flange is connected to the first electrical component.

[0054] The second side wind deflector includes a second side wind deflector body, a sixth flange, and a seventh flange. The sixth flange is connected to one side of the second side wind deflector body along the second direction and bends away from the first air inlet space. The seventh flange is connected to the other side of the second side wind deflector body along the second direction and bends away from the first air inlet space. The sixth flange is connected to the second electrical component, and one side of the seventh flange away from the second side wind deflector body is connected to the inner surface of the cabinet body.

[0055] Optionally, the wind deflector structure further includes a first panel and a second panel. The first panel is connected to the surface of the first electrical component facing the first air inlet, and the second panel is connected to the surface of the second electrical component facing the second air inlet.

[0056] The second flange is connected to one side of the first panel along the first direction, and the fifth flange is connected to the other side of the first panel along the first direction. The third flange is connected to one side of the second panel along the first direction, and the sixth flange is connected to the other side of the second panel along the first direction.

[0057] Optionally, a plurality of first air inlets are arranged side by side along the first direction.

[0058] and / or,

[0059] A plurality of second air inlets are arranged side by side along the first direction.

[0060] Optionally, the cabinet body includes a cabinet body main body with an open top and a top cover hermetically connected to the top opening of the cabinet body main body. The cabinet body main body includes a bottom plate and a surrounding plate connected between the top cover and the bottom plate. The surrounding plate includes a first side plate of the cabinet body, a second side plate of the cabinet body, a third side plate of the cabinet body, and a fourth side plate of the cabinet body that are sequentially connected. The second side plate of the cabinet body and the fourth side plate of the cabinet body are opposite to each other along the first direction, and the first side plate of the cabinet body and the third side plate of the cabinet body are opposite to each other along the second direction.

[0061] The first air inlet is disposed at least on the first side plate of the cabinet body, the second air inlet is disposed at least on the first side plate of the cabinet body, and the air outlet is disposed on at least one of the top cover, the second side plate of the cabinet body, the third side plate of the cabinet body, and the fourth side plate of the cabinet body.

[0062] Optionally, a plurality of the first air inlets are provided; all of the plurality of first air inlets are provided on the first side plate of the cabinet body, or, some of the first air inlets are provided on the first side plate of the cabinet body, and some of the first air inlets are provided on the side of the fourth side plate of the cabinet body close to the first side plate of the cabinet body;

[0063] and / or,

[0064] A plurality of the second air inlets are provided; all of the plurality of second air inlets are provided on the first side plate of the cabinet body, or, some of the second air inlets are provided on the first side plate of the cabinet body, and some of the second air inlets are provided on the side of the second side plate of the cabinet body close to the first side plate of the cabinet body.

[0065] Optionally, a plurality of the air outlets are provided; some of the air outlets are provided on the third side plate of the cabinet body, some of the air outlets are provided on the second side plate of the cabinet body, and some of the air outlets are provided on the fourth side plate of the cabinet body.

[0066] Optionally, an insulating partition is further included. The top side of the insulating partition is connected to the inner surface of the top of the cabinet body, the bottom side of the insulating partition is connected to the inner surface of the bottom of the cabinet body, and the insulating partition is disposed between the first electrical component and the second electrical component to divide the exhaust space into a first exhaust space and a second exhaust space. The first exhaust port is communicated with the air outlet through the first exhaust space, and the second exhaust port is communicated with the air outlet through the second exhaust space.

[0067] On the other hand, an embodiment of the present invention further provides an energy storage system, including a box body, a battery cabinet, and the above-mentioned control cabinet, and the battery cabinet and the control cabinet are placed in the box body.

[0068] Optionally, the control cabinet is placed on the top of the battery cabinet.

[0069] Optionally, a refrigerator and a liquid cooling pipeline structure disposed in the box body are further included;

[0070] The battery cabinet includes a housing and a battery module disposed in the housing. A liquid cooling cavity is formed between the battery module and the inner wall of the housing. The battery module is immersed in the cooling liquid in the liquid cooling cavity. An inlet communicated with the liquid cooling cavity and an outlet communicated with the liquid cooling cavity are provided on the housing;

[0071] The cooler is provided with a heat exchange channel, which has a coolant inlet and a coolant outlet; the liquid cooling pipeline structure includes a liquid inlet pipeline and a liquid return pipeline. The liquid inlet pipeline includes a liquid inlet main pipe and a liquid inlet branch pipe. One end of the liquid inlet main pipe is connected to the coolant outlet, one end of the liquid inlet branch pipe is connected to the liquid inlet main pipe, and the other end is connected to the liquid inlet; the liquid return pipeline includes a liquid return main pipe and a liquid return branch pipe. One end of the liquid return main pipe is connected to the coolant inlet, one end of the liquid return branch pipe is connected to the liquid return main pipe, and the other end is connected to the liquid outlet;

[0072] The cooler is used to cool the coolant flowing through the heat exchange channel.

[0073] Optionally, the control cabinet further includes an exhaust pipe. An exhaust valve for discharging the gas in the coolant in the battery cabinet is provided at the top of the housing. The bottom end of the exhaust pipe is connected to the exhaust valve, and the top end of the exhaust pipe passes through the side of the cabinet body.

[0074] Optionally, a plurality of the battery cabinets and control cabinets are provided. A control cabinet is provided at the top of each battery cabinet, and the plurality of control cabinets are arranged in one row or multiple rows. Description of the Drawings

[0075] Figure 1 is a schematic diagram of the internal structure of the control cabinet provided by the first embodiment of the present invention;

[0076] Figure 2 is an exploded view of the control cabinet provided by the first embodiment of the present invention;

[0077] Figure 3 is a front view of the control cabinet provided by the first embodiment of the present invention;

[0078] Figure 4 is along Figure 3 a cross-sectional view taken along the A-A direction in

[0079] Figure 5 is along Figure 1 a cross-sectional view taken along the B-B direction in

[0080] Figure 6 is a schematic diagram of the cabinet body of the control cabinet provided by the first embodiment of the present invention;

[0081] Figure 7 is Figure 6 another perspective view of

[0082] Figure 8 is a schematic diagram of the control cabinet provided by the second embodiment of the present invention;

[0083] Figure 9It is a schematic diagram of the control cabinet provided by the third embodiment of the present utility model;

[0084] Figure 10 is Figure 9 another perspective view of;

[0085] Figure 11 It is an internal structure diagram of the control cabinet provided by the third embodiment of the present utility model;

[0086] Figure 12 It is a schematic diagram of the energy storage system provided by an embodiment of the present utility model.

[0087] The reference numerals in the specification are as follows:

[0088] 10, control cabinet; 101, exhaust pipe; 20, box body; 30, battery cabinet; 40, cooler; 50, liquid cooling pipeline structure; 501, liquid inlet pipeline; 5011, main liquid inlet pipe; 502, liquid return pipeline; 5021, main liquid return pipe;

[0089] 1, cabinet body; 11, first air inlet; 12, second air inlet; 13, air outlet; 131, first air outlet; 132, second air outlet; 133, third air outlet; 14, ventilation space; 141, first air inlet space; 142, second air inlet space; 1421, first part; 1422, second part; 143, exhaust space; 15, cabinet body main body; 151, first side plate of the cabinet body; 152, second side plate of the cabinet body; 153, third side plate of the cabinet body; 154, fourth side plate of the cabinet body; 155, bottom plate; 1551, second drain groove; 1552, third drain groove; 1553, fourth drain groove; 1554, fifth drain groove; 16, top cover; 161, top cover main body; 162, protruding part; 163, cavity; 1631, bottom opening; 164, first drain groove; 165, first water baffle; 166, second water baffle; L, isolation gap; 17, first insulating cushion block; 18, second insulating cushion block; 191, first support rib plate; 192, second support rib plate; 193, first support rib plate fixing block; 194, second support rib plate fixing block;

[0090] 2, first electrical component; 21, first top wall; 22, first bottom wall; 23, first side wall; 24, second side wall; 25, third side wall; 26, fourth side wall;

[0091] 3, second electrical component; 31, second top wall; 32, second bottom wall; 33, fifth side wall; 34, sixth side wall; 35, seventh side wall; 36, eighth side wall; 37, second exhaust port;

[0092] 4. Windshield structure; 41. First side windshield; 411. First side windshield main body; 412. Fourth flange; 413. Fifth flange; 42. Second side windshield; 421. Second side windshield main body; 422. Sixth flange; 423. Seventh flange; 43. Intermediate windshield; 431. First windshield; 4311. First windshield main body; 4312. First flange; 4313. Second flange; 432. Second windshield; 4321. Second windshield main body; 4322. Third flange; 44. First panel; 45. Second panel; 46. First wind stop plate; 47. Second wind stop plate;

[0093] 5. First air inlet shutter;

[0094] 6. Second air inlet shutter;

[0095] 7. Opening and closing door panels;

[0096] 8. Venetian blinds. DETAILED DESCRIPTION

[0097] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0098] See also Figures 1 to 7 A control cabinet 10 provided in an embodiment of the utility model includes a cabinet body 1, and a first electrical component 2, a second electrical component 3, a first exhaust device, a second exhaust device and a wind shielding structure 4 arranged in the cabinet body 1. A first heat dissipation duct is arranged in the shell of the first electrical component 2, and a second heat dissipation duct is arranged in the shell of the second electrical component 3. The second heat dissipation duct and the second exhaust device are components provided by the second electrical component 3, and an electrical component located in the second heat dissipation duct is also arranged in the shell of the second electrical component 3. The first exhaust device is arranged in the first heat dissipation duct or placed outside the first electrical component 2, and the second exhaust device is arranged in the second heat dissipation duct or placed outside the second electrical component 3.

[0099] A first air inlet 11, a second air inlet 12 and an air outlet 13 are provided on the cabinet body 1; a first air extraction port and a first air discharge port are provided on the outer shell of the first electrical component 2, and a second air extraction port and a second air discharge port 37 are provided on the outer shell of the second electrical component 3; the space between the inner surface of the cabinet body 1, the outer surface of the first electrical component 2 and the outer surface of the second electrical component 3 is a ventilation space 14, and the wind blocking structure 4 is used to divide the ventilation space 14 into a first air inlet space 141, a second air inlet space 142 and an air exhaust space 143; the first air extraction device is used to introduce the air outside the cabinet body 1 into the first heat dissipation air duct through the first air inlet 11, the first air inlet space 141 and the first air extraction port, and discharge it from the cabinet body 1 through the first air discharge port, the air exhaust space 143 and the air outlet 13; the second air extraction device is used to introduce the air outside the cabinet body 1 into the second heat dissipation air duct through the second air inlet 12, the second air inlet space and the second air extraction port, and discharge it from the cabinet body 1 through the second air discharge port 37, the air exhaust space 143 and the air outlet 13.

[0100] According to the control cabinet 10 of the first embodiment of the present invention, a wind blocking structure 4 is provided to divide the ventilation space 14 between the inner surface of the cabinet body 1, the outer surface of the first electrical component 2 and the outer surface of the second electrical component 3 into a first air inlet space 141, a second air inlet space 142 and an air exhaust space 143. The first air extraction device introduces the air outside the cabinet body 1 into the first heat dissipation air duct through the first air inlet 11, the first air inlet space 141 and the first air extraction port, cools the electrical components in the first electrical component 2, and then discharges it from the cabinet body 1 through the first air discharge port, the air exhaust space 143 and the air outlet 13. The second air extraction device introduces the air outside the cabinet body 1 into the second heat dissipation air duct through the second air inlet 12, the second air inlet space 142 and the second air extraction port, cools the electrical components in the second electrical component, and then discharges it from the cabinet body 1 through the second air discharge port 37, the air exhaust space 143 and the air outlet 13. Compared with the prior art, the air inlet spaces (the first air inlet space 141 and the second air inlet space 142) and the air exhaust space 143 are not directly connected, but are connected through the internal heat dissipation air ducts in the first electrical component 2 and the second electrical component 3. The hot air discharged from the air outlet 13 will not flow back to the first air inlet 11 and the second air inlet 12 inside the cabinet body 1 again, preventing the heat from being repeatedly absorbed, and immediately discharging the hot air in the air exhaust space 143, avoiding overheating of the electrical components in the first electrical component 2 and the second electrical component 3, and effectively ensuring the heat dissipation effect of the electrical components in the first electrical component 2 and the second electrical component 3.

[0101] In one embodiment, the first electrical component 2 is an energy storage converter, and the second electrical component 3 is a battery management system. That is, the control cabinet is applied to an energy storage system.

[0102] However, the control cabinet is also applied to other control cabinets, such as a junction cabinet or a communication cabinet. The first electrical component 2 and the second electrical component 3 can be a heat exchanger, a high-power radiator, an air conditioner, an electronic load, a resistive load, a high-power DC-DC, a power transformer, an inverter, an IGBT, a distribution box, etc. The first electrical component 2 and the second electrical component 3 can be high-power electrical components, and the heat dissipation wind of the high-power electrical components themselves can be reused to dissipate the heat of other heat-generating components, which can reduce the number and power of external fans used and improve energy efficiency. In one embodiment, the first exhaust device is arranged in the first heat dissipation air duct, and the second exhaust device is arranged in the second heat dissipation air duct.

[0103] In one embodiment, the first exhaust device is a built-in part of the first electrical component 2, and the housing of the first electrical component 2 is also provided with an electrical component located in the first heat dissipation air duct. The second exhaust device is a built-in part of the second electrical component 3, and the housing of the second electrical component 3 is also provided with an electrical component located in the second heat dissipation air duct. In this way, the first exhaust device of the first electrical component 2 and the second exhaust device of the second electrical component 3 are used to introduce cold air and discharge hot air, thereby achieving the purpose of controlling the ambient temperature in the cabinet 1. Compared with the prior art, there is no need to add an additional radiator, which effectively reduces the power loss of the energy storage system itself and improves the charging and discharging efficiency of the battery cabinet of the energy storage system.

[0104] In one embodiment, the first exhaust device and the second exhaust device are both exhaust fans.

[0105] However, in other embodiments, an air extraction pump may be used instead of an extraction fan.

[0106] See also Figures 1 to 3 , the first air inlet 11 and the second air inlet 12 are located on the same side of the cabinet 1. A first cabinet side panel 151 is provided on one side of the cabinet 1, the first air inlet 11 and the second air inlet 12 are arranged side by side on the first cabinet side panel 151 along a first direction, the first electrical component 2 and the second electrical component 3 are arranged along the first direction and spaced apart to form an isolation gap L therebetween; along a second direction perpendicular to the first direction, the first air inlet space 141 is located between the first cabinet side panel 151 and the first electrical component 2, and the second air inlet space 142 is located between the first cabinet side panel 151 and the second electrical component 3.

[0107] The first direction is Figure 1 The x direction in the second direction is Figure 1 y direction in .

[0108] See also Figures 1 to 5, the housing of the first electrical component 2 includes a first outer peripheral wall, a first top wall 21 and a first bottom wall 22. The first outer peripheral wall is connected between the first top wall 21 and the first bottom wall 22. The first outer peripheral wall includes a first side wall 23, a second side wall 24, a third side wall 25 and a fourth side wall 26. The first side wall 23 and the third side wall 25 are oppositely arranged in the second direction, the second side wall 24 and the fourth side wall 26 are oppositely arranged in the first direction. The first air intake is arranged on the first side wall 23, and the first air outlet is arranged on at least one of the second side wall 24, the third side wall 25, the fourth side wall 26 and the first top wall 21. Preferably, the first air outlet is arranged on the first top wall 21, that is, the hot air in the first heat dissipation air duct is discharged from the top side of the first electrical component 2.

[0109] The housing of the second electrical component 3 includes a second outer peripheral wall, a second top wall 31 and a second bottom wall 32. The second outer peripheral wall is connected between the second top wall 31 and the second bottom wall 32. The second outer peripheral wall includes a fifth side wall 33, a sixth side wall 34, a seventh side wall 35 and an eighth side wall 36. The fifth side wall 33 and the seventh side wall 35 are oppositely arranged in the second direction, the sixth side wall 34 and the eighth side wall 36 are oppositely arranged in the first direction. The second air intake is arranged on the fifth side wall 33, and the second air outlet 37 is arranged on at least one of the sixth side wall 34, the seventh side wall 35, the eighth side wall 36 and the second top wall 37. Preferably, referring to Figure 5 , the second air outlets 37 are arranged on the sixth side wall 34 and the seventh side wall 35, that is, the hot air in the second heat dissipation air duct is discharged from the side of the second electrical component 3.

[0110] However, in other embodiments, by changing the internal second heat dissipation air duct in the second electrical component 3, the second air outlet can also be arranged on the second top wall 31.

[0111] Referring to Figures 2 to 4 , it further includes a first air inlet louver 5. The first air inlet louver 5 is arranged on the first air inlet 11. A first dust filter screen is arranged on the side of the first air inlet louver 5 close to the first air inlet space 141. The first air inlet louver 5 can play a waterproof role and can block most of the water from entering the cabinet 1 through the first air inlet 11. The first dust filter screen can prevent dust from entering. After the first dust filter screen is opened, the filter cotton can be easily taken out from the inner side of the filter screen, which is convenient for replacing the new filter cotton. The effective ventilation rate of the first air inlet louver 5 reaches 55%.

[0112] Referring to Figure 2 , Figure 3 and Figure 5, it further includes a second air inlet shutter 6 which is arranged on the second air inlet 12. A second dust filter screen is provided on one side of the second air inlet shutter 6 close to the second air inlet space 142. The second air inlet shutter 6 can play a waterproof role and can block most of the water from entering the cabinet 1 through the second air inlet 12. The second dust filter screen can prevent dust from entering. After the second dust filter screen is opened, the filter cotton can be easily taken out from the inner side of the filter screen, which is convenient for replacing the new filter cotton. The effective ventilation rate of the second air inlet shutter 6 reaches 55%.

[0113] It further includes a hinged door 7. The second air inlet shutter 6 is detachably connected to the hinged door 7. The hinged door 7 is hinged to one side edge of the second air inlet 12, and a sealing rubber ring is provided at the outer edge of the hinged door 7; the hinged door 7 can open or close the second air inlet 12. When the hinged door 7 closes the second air inlet 12, the sealing rubber ring seals the gap between the hinged door 7 and the hole edge of the second air inlet 12. Preferably, the hinged door 7 is hinged to one side edge of the second air inlet 12 through a spring hinge. The hinged door 7 can be conveniently opened to facilitate operating the operating handle of the second electrical component 3. A drainage groove can be provided at the position where the hinged door 7 is connected to the second air inlet 12 to drain the accumulated water at this position.

[0114] See Figure 2 , the cabinet 1 includes a cabinet body 15 with an open top and a top cover 16 hermetically connected to the open top of the cabinet body 15. The air outlet 13 is arranged on the top cover 16. The top cover 16 is detachably covered on the cabinet body 15, which can protect the first electrical component 2 and the second electrical component 3, and is convenient for the maintenance and repair of the first electrical component 2 and the second electrical component 3.

[0115] The top surface of the top cover 16 can be an inclined surface, and rainwater runs down the inclined surface to leave the top cover 16 to prevent rainwater from accumulating on the top surface of the top cover 16.

[0116] A sealed waterproof structure can be designed at the contact position between the top cover 16 and the cabinet body 15, and a drainage groove is designed at the same time to play a waterproof function inside the cabinet 1.

[0117] However, in other embodiments, an inspection opening can also be provided on the top cover 16, and an inspection cover is installed on the inspection opening.

[0118] However, in other embodiments, the top cover 16 can also be rotatably connected to one side of the open top of the cabinet body 15.

[0119] However, in other embodiments, it may also be that the top cover 16 is fixed at the top opening of the cabinet body 15. An inspection opening is provided on the top cover 16, and an inspection cover is installed on the inspection opening. The inspection cover is rotatably connected to the inspection opening.

[0120] See Figures 2 to 4 , the top cover 16 includes a top cover body 161 and a protruding portion 162. The bottom side of the protruding portion 162 is connected to the side of the top cover body 161 away from the first side plate 151 of the cabinet. The protruding portion 162 has a cavity 163 with a closed top inside. A bottom opening 1631 communicating with the exhaust space 143 is provided at the bottom end of the cavity 163. An air outlet 13 is provided on the side of the cavity 163 facing the first side plate 151 of the cabinet.

[0121] It further includes an air outlet louver 8. The air outlet louver 8 is provided on the air outlet 13. A third dust filter screen is provided on the side of the air outlet louver 13 close to the cavity 163. The air outlet louver 8 can play a waterproof role and can block most of the water from entering the cabinet 1 through the air outlet 13. The third dust filter screen can prevent dust from entering. After the third dust filter screen is opened, the filter cotton can be easily taken out from the inner side of the filter screen, which is convenient for replacing the new filter cotton. The effective ventilation rate of the air outlet louver 8 reaches 55%.

[0122] A first drain groove 164 is provided at the bottom of the cavity 163. At least one end of the first drain groove 164 communicates with the outside; a water blocking structure is provided in the cavity 163 for blocking the water entering the cavity 163 from the air outlet 13 in the first drain groove 164 to prevent the water from entering the exhaust space 143.

[0123] The water blocking structure includes a first water baffle 165 and a second water baffle 166. The first water baffle 165 is arranged at intervals in the second direction between the second water baffle 166 and the air outlet 13. The top end of the first water baffle 165 is connected to the top side of the cavity 163, and the bottom end of the first water baffle 165 is suspended in the cavity 163. The top end of the second water baffle 166 is connected to the bottom side of the cavity 163, and the top end of the second water baffle is suspended in the cavity 163. The top end surface of the second water baffle 166 is located above the bottom end surface of the first water baffle 165. The first drain groove 164 is formed between the second water baffle 166 and the air outlet 13. In this way, the first water baffle 165 and the second water baffle 166 form a labyrinth structure, and there is an overlap between the first water baffle 165 and the second water baffle 166 in the height direction. When the external water enters from the air outlet 13, it is blocked by the first water baffle 165 and the second water baffle 166, and then drips into the first drain groove 164, so as to be discharged outside the cabinet 1, ensuring that the water accidentally entering the air outlet 13 can be smoothly discharged.

[0124] The cabinet body 1 is an insulating part, which is integrally processed by mold opening with insulating materials such as fiberglass to play the role of insulation. The outer surface of the first electrical component 2 is spaced from the inner surface of the cabinet body 1, and the outer surface of the second electrical component 3 is spaced from the inner surface of the cabinet body 1.

[0125] See Figures 4 to 6 , and further includes a first insulating cushion block 17. The first insulating cushion block 17 is arranged between the inner surface of the bottom of the cabinet body 1 and the bottom surface of the first electrical component 2, so that the first electrical component 2 is spaced from the bottom of the cabinet body 1. In this way, the first electrical component 2 does not contact the cabinet body 1, achieving electrical insulation. It further includes a second insulating cushion block 18. The second insulating cushion block 18 is arranged between the inner surface of the bottom of the cabinet body 1 and the bottom surface of the second electrical component 3, so that the second electrical component 3 is spaced from the bottom of the cabinet body 1. In this way, the second electrical component 3 does not contact the cabinet body 1, achieving electrical insulation.

[0126] See Figure 6 , preferably, four first insulating cushion blocks 17 are provided. The four first insulating cushion blocks 17 are arranged in a square shape to be disposed at the four corners of the bottom surface of the first electrical component 2, which can well elevate the first electrical component 2 and keep the bottom surface of the first electrical component 2 horizontal. The first insulating cushion block 17 is in the shape of a square block.

[0127] See Figure 6 , preferably, two second insulating cushion blocks 18 are provided. The two second insulating cushion blocks 18 are arranged in parallel at intervals along the second direction. The second insulating cushion block 18 is in a long strip shape and extends along the first direction to be disposed on both sides of the bottom surface of the second electrical component 3 along the first direction, which can well elevate the second electrical component 3 and keep the bottom surface of the second electrical component 3 horizontal.

[0128] The first insulating cushion block 17 and the second insulating cushion block 18 are made of insulating plastic materials, such as PCM (Phase Change Material, phase change heat storage material), and PCM is composed of a mixture of polycarbonate and plexiglass.

[0129] See Figure 4 , a second drain groove 1551 communicating with the outside is provided on the inner surface of the bottom of the cabinet body 1, and the second drain groove 1551 is located below the first air inlet space 14.

[0130] See Figure 5, a third drain trough 1552 communicating with the outside is provided on the inner surface of the bottom of the cabinet body 1, and the third drain trough 1552 is located below the second air inlet space 142. A fourth drain trough 1553 communicating with the outside is provided on the inner surface of the bottom of the cabinet body 1, and the fourth drain trough 1553 is located below the first electrical component 2 and the second electrical component 3. A fifth drain trough 1554 communicating with the outside is provided on the inner surface of the bottom of the cabinet body 1, and the fifth drain trough 1554 is located on the side of the first electrical component 2 and the second electrical component 3 away from the first side plate 151 of the cabinet body.

[0131] See Figure 6 and Figure 7 , further comprising a first support rib plate 191 and a second support rib plate 192, and the first support rib plate 191 and the second support rib plate 192 are fixed on opposite sides of the bottom surface of the cabinet body 1. Further comprising a first support rib plate fixing block 193 and a second support rib plate fixing block 194, and the first support rib plate fixing block 193 and the second support rib plate fixing block 194 are fixed on the inner surface of the bottom of the cabinet body 1, and threaded holes are provided on the first support rib plate fixing block 193 and the second support rib plate fixing block 194; the first support rib plate 191 is fixedly connected to the first support rib plate fixing block 193 through a bolt, and the second support rib plate 192 is fixedly connected to the second support rib plate fixing block 194 through a bolt. See Figure 6 , a plurality of first support rib plate fixing blocks 193 are provided to enhance the connection strength of the first support rib plate 191. A plurality of second support rib plate fixing blocks 194 are provided to enhance the connection strength of the second support rib plate 192. The first support rib plate 191 and the second support rib plate 192 are used to enhance the bottom strength of the cabinet body 1 and are used to contact the plane on which the control cabinet 10 is placed, so as to prevent the bottom surface of the cabinet body 1 from directly contacting the placed plane and play a supporting role.

[0132] See Figure 1 and Figure 2, the windshield structure 4 includes an intermediate windshield member 43, a first side windshield plate 41, and a second side windshield plate 42; along the second direction, the intermediate windshield member 43 is located on the side of the isolation gap L close to the first side plate 151 of the cabinet. The top of the intermediate windshield member 43 is connected to the inner surface of the top of the cabinet 1, the bottom of the intermediate windshield member 43 is connected to the inner surface of the bottom of the cabinet 1, one side of the intermediate windshield member 43 along the second direction is connected to the first side plate 151 of the cabinet, and the other side of the intermediate windshield member 43 along the second direction is connected to the first electrical component 2 and the second electrical component 3. The first side windshield plate 41 is arranged on the side of the first air inlet space 141 away from the second air inlet space 142. The top of the first side windshield plate 41 is connected to the inner surface of the top of the cabinet 1, the bottom of the first side windshield plate 41 is connected to the inner surface of the bottom of the cabinet 1. The first side plate 151 of the cabinet, the first side windshield plate 41, the inner surface of the top of the cabinet 1, the inner surface of the bottom of the cabinet 1, and the housing of the first electrical component 2 enclose to form the first air inlet space 141. The second side windshield plate 42 is arranged on the side of the second air inlet space 142 away from the first air inlet space 141. The top of the second side windshield plate 42 is connected to the inner surface of the top of the cabinet 1, the bottom of the second side windshield plate 42 is connected to the inner surface of the bottom of the cabinet 1. The first side plate 151 of the cabinet, the second side windshield plate 42, the inner surface of the top of the cabinet 1, the inner surface of the bottom of the cabinet 1, and the housing of the second electrical component 3 enclose to form the second air inlet space 142. The inner surface of the top of the cabinet 1 is the lower surface of the top cover 16.

[0133] The intermediate windshield member 43 includes a first windshield plate 431 and a second windshield plate 432. One side of the first windshield plate 431 along the second direction is connected to the first side plate 151 of the cabinet, the other side of the first windshield plate 431 along the second direction is connected to the first electrical component 2. One side of the second windshield plate 432 along the second direction is connected to the first side plate 151 of the cabinet, and the other side of the second windshield plate 432 along the second direction is connected to the second electrical component 3.

[0134] The first windshield plate 431 includes a first windshield plate body 4311, a first flanging 4312, and a second flanging 4313. The first flanging 4312 is connected to one side of the first windshield plate body 4311 along the second direction and bends away from the second air inlet space 142. The second flanging 4313 is connected to the other side of the first windshield plate body 4311 along the second direction and bends away from the first air inlet space 141. The first flanging 4312 is attached to the inner side surface of the first side plate 151 of the cabinet, and the second flanging 4313 is connected to the first electrical component 2.

[0135] The second wind deflector 432 includes a second wind deflector main body 4321 and a third flanging 4322. The second wind deflector main body 4321 is attached to the surface of the first wind deflector main body 4311 away from the first air inlet space 141. One side of the second wind deflector main body 4321 in the second direction is connected to the inner side surface of the first side plate 151 of the cabinet body. The third flanging 4322 is connected to the other side of the second wind deflector main body 4321 in the second direction and is bent away from the first air inlet space 141; the third flanging 4321 is connected to the second electrical component 3.

[0136] The first side wind deflector 41 includes a first side wind deflector main body 411, a fourth flanging 412 and a fifth flanging 413. The fourth flanging 412 is connected to one side of the first side wind deflector main body 411 in the second direction and is bent towards the second air inlet space 142. The fifth flanging 413 is connected to the other side of the first side wind deflector main body 411 in the second direction and is bent away from the second air inlet space 142; the fourth flanging 412 is attached to the inner side surface of the first side plate 151 of the cabinet body, and the fifth flanging 413 is connected to the first electrical component 2.

[0137] The second side wind deflector 42 includes a second side wind deflector main body 421, a sixth flanging 422 and a seventh flanging 423. The sixth flanging 422 is connected to one side of the second side wind deflector main body 421 in the second direction and is bent away from the first air inlet space 141. The seventh flanging 423 is connected to the other side of the second side wind deflector main body 421 in the second direction and is bent away from the first air inlet space 141; the sixth flanging 422 is connected to the second electrical component 3, and one side of the seventh flanging 423 away from the second side wind deflector main body 421 is connected to the inner side surface of the cabinet body 1.

[0138] The wind deflector structure 4 further includes a first panel 44 and a second panel 45. The first panel 44 is connected to the surface of the first electrical component 2 facing the first air inlet 11 (the surface of the first side wall 23 facing the first air inlet 11). The second panel 45 is connected to the surface of the second electrical component 3 facing the second air inlet 12 (the surface of the fifth side wall 33 facing the second air inlet 12). The first panel 44 has a square hollow structure, and the second panel 45 has a square strip shape.

[0139] The second flanging 4313 is connected to one side of the first panel 44 along the first direction, and the fifth flanging 413 is connected to the other side of the first panel 44 along the first direction; the third flanging 4322 is connected to one side of the second panel 45 along the first direction, and the sixth flanging 422 is connected to the other side of the second panel 45 along the first direction.

[0140] See Figure 2 , the cabinet body 1 is a square structure with an open top and a closed bottom. The cabinet main body 15 includes a bottom plate 155 and a surrounding plate connected between the top cover 16 and the bottom plate 15. The surrounding plate includes a first cabinet side plate 151, a second cabinet side plate 152, a third cabinet side plate 153, and a fourth cabinet side plate 154 that are connected in sequence. The second cabinet side plate 152 and the fourth cabinet side plate 154 are opposite to each other along the first direction, and the first cabinet side plate 151 and the third cabinet side plate 153 are opposite to each other along the second direction. The inner surface of the bottom of the cabinet 1 is the upper surface of the bottom plate 15.

[0141] In the first embodiment, the first air inlet 12 and the second air inlet 13 are arranged on the side of the cabinet 1 (the first cabinet side plate 151), and the air outlet 13 is arranged on the top of the cabinet 1 (the side of the top cover 16). Cold air enters from the first air inlet 12 and the second air inlet 13, and hot air is discharged from the side of the top cover 16. The hot air is lighter and directly escapes from the top of the cabinet 1, avoiding the mixing of cold air and hot air and preventing the hot air from being re-sucked into the first air inlet 12 and the second air inlet 13.

[0142] Moreover, drainage grooves are arranged at multiple positions on the bottom of the cabinet 1 (the bottom plate 15), which can effectively prevent the electrical components in the first electrical component 2 and the second electrical component 3 from directly contacting the water surface in the extreme state when water enters the cabinet 1. Before the water surface contacts the electrical components, the internal accumulated water can be drained out of the cabinet 1 by using the drainage grooves, preventing the accumulation of water and other liquids in the cabinet 1. In addition, the first electrical component 2 and the second electrical component 3 do not contact the inner surface of the cabinet 1, further exerting the waterproof and insulating effects.

[0143] The heat dissipation principle of the control cabinet in this embodiment is as follows:

[0144] The first air extraction device and the second air extraction device work, so that the external cold air is divided into two paths and enters the cabinet 1. The first path of cold air enters the first air inlet space 141 through the first air inlet 11 (the first air inlet louver 5), and the second path of cold air enters the second air inlet space 142 through the second air inlet 12 (the second air inlet louver 6).

[0145] See Figure 4, due to the wind-blocking effect of the wind-blocking structure 4, most of the first path of cold air enters the first heat dissipation air duct through the first air extraction opening on the first electrical component 2, flows through the electrical components in the first electrical component 2 and cools them, and the formed hot air is discharged to the exhaust space 143 through the first air exhaust opening. Most of the hot air is directly discharged through the air outlet 13, and a small part of the hot air circulates in the exhaust space 143 and is finally discharged through the air outlet 13.

[0146] , due to the wind-blocking effect of the wind-blocking structure 4, most of the second path of cold air enters the second heat dissipation air duct through the second air extraction opening on the second electrical component 2, flows through the electrical components in the second electrical component 3 and cools them, and the formed hot air is discharged to the exhaust space 143 through the second air exhaust opening. Most of the hot air is directly discharged through the air outlet 13, and a small part of the hot air circulates in the exhaust space 143 and is finally discharged through the air outlet 13.

[0147] Second Embodiment

[0148] See Figure 8 , the control cabinet 10 provided by the second embodiment of the present utility model is different from the first embodiment in that the first air inlet 11 is arranged on the first side plate 151 of the cabinet body, and a plurality of second air inlets 12 are provided. Some of the second air inlets 12 are arranged on the first side plate 151 of the cabinet body, and some of the second air inlets 12 are arranged on the side of the second side plate 152 of the cabinet body close to the first side plate 151.

[0149] Specifically, two first air inlets 11 are arranged at intervals along the first direction.

[0150] Specifically, two second air inlets 12 are provided. One second air inlet 12 is arranged on the first side plate 151 of the cabinet body, and the other second air inlet 12 is arranged on the side of the second side plate 152 of the cabinet body close to the first side plate 151. In this way, the second air inlet space 142 includes a first part 1421 located between the first side plate 151 of the cabinet body and the fifth side wall 33 of the second electrical component 3 and a second part located between the second side plate 152 of the cabinet body and the sixth side wall 34 of the second electrical component 3. The second electrical component 3 introduces cold air from both sides and can cool the electrical components in the second electrical component 3 more quickly.

[0151] Third Embodiment

[0152] See Figures 9 to 11, the control cabinet 10 provided by the third embodiment of the present utility model is different from the second embodiment in that the top cover 16 is flat and the air outlet 13 is not provided on the top cover 16. The first air inlet 11 is provided on the first side plate 151 of the cabinet body, and a plurality of second air inlets 12 are provided. Some of the second air inlets 12 are provided on the first side plate 151 of the cabinet body, and some of the second air inlets 12 are provided on the side of the second side plate 152 of the cabinet body close to the first side plate 151.

[0153] Specifically, two first air inlets 11 are provided at intervals along the first direction.

[0154] Specifically, two second air inlets 12 are provided. One second air inlet 12 is provided on the first side plate 151 of the cabinet body, and the other second air inlet 12 is provided on the side of the second side plate 152 of the cabinet body close to the first side plate 151. In this way, the second air inlet space 142 includes a first part 1421 between the first side plate 151 of the cabinet body and the fifth side wall 33 of the second electrical component 3 and a second part 1422 between the second side plate 152 of the cabinet body and the sixth side wall 34 of the second electrical component 3. The second electrical component 3 introduces cold air from both sides, and can more quickly cool the electrical components in the second electrical component 3.

[0155] In this embodiment, the air outlet 13 is provided on at least one of the second side plate 152, the third side plate 153, and the fourth side plate 154 of the cabinet body.

[0156] Preferably, referring to Figure 9 , a plurality of air outlets 13 are provided. The plurality of air outlets 13 include a first air outlet 131 provided on the second side plate 152 of the cabinet body, a second air outlet 132 provided on the third side plate 152 of the cabinet body, and a third air outlet 133 provided on the fourth side plate 152 of the cabinet body.

[0157] In this embodiment, specifically, two first air outlets 131 are provided at intervals along the second direction, one second air outlet 132 is provided, and two third air outlets 133 are provided at intervals along the second direction.

[0158] In this embodiment, the wind-blocking structure 4 includes a first wind-blocking plate 46 and a second wind-blocking plate 47. The top side of the first wind-blocking plate 46 is connected to the inner surface of the top of the cabinet body 1, and the bottom side of the first wind-blocking plate 46 is connected to the inner surface of the bottom of the cabinet body 1. The top side of the second wind-blocking plate 47 is connected to the inner surface of the top of the cabinet body 1, and the bottom side of the second wind-blocking plate 47 is connected to the inner surface of the bottom of the cabinet body 1. One side of the first wind-blocking plate 46 along the first direction is connected to the fourth side plate 154 of the cabinet body, the other side of the first wind-blocking plate 46 along the first direction is connected to one side of the second wind-blocking plate 47 along the first direction, and the other side of the second wind-blocking plate 47 along the first direction is connected to the second side plate 152 of the cabinet body.

[0159] The number, shape, and size of the wind-blocking plates (wind-blocking plates) in the wind-blocking structure 4 can be flexibly designed as long as the ventilation space 14 between the inner surface of the cabinet body 1, the outer surface of the first electrical component 2, and the outer surface of the second electrical component 3 can be divided into the mutually isolated first air inlet space 141, second air inlet space 142, and exhaust space 143.

[0160] Fourth Embodiment

[0161] The control cabinet 10 provided in the fourth embodiment of the present utility model is different from the second embodiment in that it further includes an insulating partition. The top side of the insulating partition is connected to the inner surface of the top of the cabinet body 1, the bottom side of the insulating partition is connected to the inner surface of the bottom of the cabinet body 1, and the insulating partition is arranged between the first electrical component 2 and the second electrical component 3 to divide the exhaust space 143 into a first exhaust space and a second exhaust space. The first exhaust port is communicated with the air outlet 13 through the first exhaust space, and the second exhaust port is communicated with the air outlet 13 through the second exhaust space.

[0162] In this embodiment, the first electrical component 2 and the second electrical component 3 are electrically isolated by the insulating partition, the heat dissipation paths of the first electrical component 2 and the second electrical component 3 are separated, and the hot air discharged by the first electrical component 2 and the second electrical component 3 converges at the air outlet 13 and will not affect each other.

[0163] On the other hand, referring to Figure 12 , the embodiment of the present utility model further provides an energy storage system, which is characterized in that it includes a box body 20, a battery cabinet 30, and the control cabinet 10 of the above embodiment, and the battery cabinet 30 and the control cabinet 10 are placed in the box body 20.

[0164] The control cabinet 10 is placed on the top of the battery cabinet 30.

[0165] It further includes a cooler 40 and a liquid cooling pipeline structure 50 disposed in the box body 20; the battery cabinet 30 includes a housing and a battery module disposed in the housing, and there is a liquid cooling cavity between the battery module and the inner wall of the housing. The battery module is immersed in the coolant in the liquid cooling cavity. The housing is provided with a liquid inlet communicating with the liquid cooling cavity and a liquid outlet communicating with the liquid cooling cavity; the cooler 40 is provided with a heat exchange channel, and the heat exchange channel has a coolant inlet and a coolant outlet; the liquid cooling pipeline structure 50 includes a liquid inlet pipeline 501 and a liquid return pipeline 502. The liquid inlet pipeline 501 includes a liquid inlet main pipe 5011 and liquid inlet branch pipes. One end of the liquid inlet main pipe 5011 is connected to the coolant outlet, one end of the liquid inlet branch pipe is connected to the liquid inlet main pipe 5011, and the other end is connected to the liquid inlet; the liquid return pipeline 502 includes a liquid return main pipe 5021 and liquid return branch pipes. One end of the liquid return main pipe 5021 is connected to the coolant inlet, one end of the liquid return branch pipe is connected to the liquid return main pipe 5021, and the other end is connected to the liquid outlet; the cooler 40 is used to cool the coolant flowing through the heat exchange channel.

[0166] The cooler 40 can be an air conditioner (chiller), a semiconductor refrigeration device, etc.

[0167] See Figure 6 and Figure 7 , the control cabinet 10 further includes an exhaust pipe 101. The top of the housing of the battery cabinet 30 is provided with an exhaust valve for discharging the gas in the coolant in the battery cabinet 30. The bottom end of the exhaust pipe 101 is connected to the exhaust valve, and the top end of the exhaust pipe passes through the side part of the cabinet body 1 (the first side plate 151 of the cabinet body).

[0168] A plurality of the battery cabinets 30 and the control cabinets 10 are provided. Each control cabinet 10 is disposed on the top of each battery cabinet 30. The plurality of battery cabinets 30 are arranged in one row or multiple rows. For example, Figure 12 in, there are 10 battery cabinets 30 and 10 control cabinets 10, and they are arranged in two rows (five in each row).

[0169] Of course, in other embodiments, other forms of coolers can also be used, such as semiconductor refrigerators.

[0170] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A control cabinet, characterized in that: The invention comprises a cabinet, and a first electrical component, a second electrical component, a first exhaust device, a second exhaust device and a wind shielding structure arranged in the cabinet, wherein a first heat dissipation duct is arranged in the shell of the first electrical component, and a second heat dissipation duct is arranged in the shell of the second electrical component; the first exhaust device is arranged in the first heat dissipation duct or placed outside the first electrical component, and the second exhaust device is arranged in the second heat dissipation duct or placed outside the second electrical component; The cabinet is provided with a first air inlet, a second air inlet and an air outlet; the housing of the first electrical component is provided with a first air intake port and a first air exhaust port, and the housing of the second electrical component is provided with a second air intake port and a second air exhaust port; The space between the inner surface of the cabinet, the outer surface of the first electrical component and the outer surface of the second electrical component is a ventilation space, and the wind shielding structure is used to separate the ventilation space into a first air inlet space, a second air inlet space and an exhaust space; The first exhaust device is used to introduce the air outside the cabinet into the first heat dissipation duct through the first air inlet, the first air inlet space and the first exhaust port, and discharge the air from the cabinet through the first exhaust port, the exhaust space and the air outlet; the second exhaust device is used to introduce the air outside the cabinet into the second heat dissipation duct through the second air inlet, the second air inlet space and the second exhaust port, and discharge the air from the cabinet through the second exhaust port, the exhaust space and the air outlet.

2. The control cabinet according to claim 1, characterized in that: The first electrical component is an energy storage inverter, and the second electrical component is a battery management system.

3. The control cabinet according to claim 1, characterized in that: The first air inlet and the first air outlet are located on different sides of the housing of the first electrical component; and / or, The second air intake port and the second air exhaust port are located on different sides of the housing of the second electrical component.

4. The control cabinet according to claim 1, characterized in that: The first air inlet and the second air inlet are located on the same side of the cabinet.

5. The control cabinet according to claim 4, characterized in that: A first side plate of the cabinet is provided on one side of the cabinet, the first air inlet and the second air inlet are arranged side by side on the first side plate of the cabinet along a first direction, and the first electrical component and the second electrical component are arranged at intervals along the first direction to form an isolation gap therebetween; Along a second direction perpendicular to the first direction, the first air inlet space is located between the first side plate of the cabinet and the first electrical component, and the second air inlet space is located between the first side plate of the cabinet and the second electrical component.

6. The control cabinet according to claim 5, characterized in that: The housing of the first electrical component includes a first peripheral wall, a first top wall and a first bottom wall, the first peripheral wall is connected between the first top wall and the first bottom wall, the first peripheral wall includes a first side wall, a second side wall, a third side wall and a fourth side wall, the first side wall and the third side wall are arranged opposite to each other in the second direction, the second side wall and the fourth side wall are arranged opposite to each other in the first direction, the first air intake port is arranged on the first side wall, and the first air exhaust port is arranged on at least one of the second side wall, the third side wall, the fourth side wall and the first top wall; The housing of the second electrical component includes a second outer peripheral wall, a second top wall and a second bottom wall, the second outer peripheral wall is connected between the second top wall and the second bottom wall, the second outer peripheral wall includes a fifth side wall, a sixth side wall, a seventh side wall and an eighth side wall, the fifth side wall and the seventh side wall are arranged opposite to each other in the second direction, the sixth side wall and the eighth side wall are arranged opposite to each other in the first direction, the second air intake port is arranged on the fifth side wall, and the second air exhaust port is arranged on at least one of the sixth side wall, the seventh side wall, the eighth side wall and the second top wall.

7. The control cabinet according to claim 5, characterized in that: The device further comprises a first air inlet louver, wherein the first air inlet louver is arranged on the first air inlet, and a first dust filter is arranged on a side of the first air inlet louver close to the first air inlet space; It also includes a second air inlet louver, which is arranged on the second air inlet, and a second dust filter is arranged on a side of the second air inlet louver close to the second air inlet space.

8. The control cabinet according to claim 7, characterized in that: It also includes an openable door panel, the second air inlet shutter is detachably connected to the openable door panel, the openable door panel is hinged on a side edge of the second air inlet, and a sealing rubber ring is provided at the outer edge of the openable door panel; The opening and closing door panel can open or close the second air inlet. When the opening and closing door panel closes the second air inlet, the sealing rubber ring seals the gap between the opening and closing door panel and the hole edge of the second air inlet.

9. The control cabinet according to claim 5, characterized in that: The cabinet comprises a cabinet body with a top opening and a top cover sealedly connected to the top opening of the cabinet body, and the air outlet is arranged on the top cover.

10. The control cabinet according to claim 9, characterized in that: The top cover is detachably covered on the cabinet body; or, The top cover is rotatably connected to one side of the top opening of the cabinet body.

11. The control cabinet according to claim 9, characterized in that: The top cover includes a top cover body and a protruding portion, the bottom side of the protruding portion is connected to a side of the top cover body away from the first side panel of the cabinet, the protruding portion has a cavity with a closed top inside, the bottom end of the cavity is provided with a bottom opening connected to the exhaust space, and the air outlet is provided on a side of the cavity facing the first side panel of the cabinet.

12. The control cabinet according to claim 11, characterized in that: It also includes an air outlet louver, which is arranged on the air outlet, and a third dust filter is arranged on a side of the air outlet louver close to the cavity.

13. The control cabinet according to claim 11, characterized in that: A first drainage groove is provided at the bottom of the cavity, and at least one end of the first drainage groove is connected to the outside; The cavity is provided with a water retaining structure for retaining water entering the cavity from the air outlet at the first drainage groove to prevent water from entering the exhaust space.

14. The control cabinet according to claim 13, characterized in that: The water retaining structure comprises a first water retaining plate and a second water retaining plate, wherein the first water retaining plate is spaced apart and arranged between the second water retaining plate and the air outlet along the second direction, the top end of the first water retaining plate is connected to the top side of the cavity, the bottom end of the first water retaining plate is suspended in the cavity, the top end of the second water retaining plate is connected to the bottom side of the cavity, and the top end of the second water retaining plate is suspended in the cavity; The top end surface of the second water baffle plate is located above the bottom end surface of the first water baffle plate, and the first drainage groove is formed between the second water baffle plate and the air outlet.

15. The control cabinet according to claim 1, characterized in that: The cabinet is an insulating member; The outer surface of the first electrical component is spaced apart from the inner surface of the cabinet, and the outer surface of the second electrical component is spaced apart from the inner surface of the cabinet.

16. The control cabinet according to claim 15, characterized in that: Also included is a first insulating spacer, which is disposed between the bottom inner surface of the cabinet and the bottom surface of the first electrical component, so that the first electrical component is spaced apart from the bottom of the cabinet; It also includes a second insulating spacer, which is arranged between the inner surface of the bottom of the cabinet and the bottom surface of the second electrical component, so that the second electrical component is spaced apart from the bottom of the cabinet.

17. The control cabinet according to claim 5, characterized in that: The inner surface of the bottom of the cabinet is provided with a second drainage groove communicating with the outside, and the second drainage groove is located below the first air inlet space; and / or, The inner surface of the bottom of the cabinet is provided with a third drainage groove connected to the outside, and the third drainage groove is located below the second air inlet space; and / or, The inner surface of the bottom of the cabinet is provided with a fourth drainage groove connected to the outside, and the fourth drainage groove is located below the first electrical component and the second electrical component; and / or, A fifth drainage groove communicating with the outside is disposed on the inner surface of the bottom of the cabinet, and the fifth drainage groove is located on a side of the first electrical component and the second electrical component away from the first side plate of the cabinet.

18. The control cabinet according to claim 1, characterized in that: It also includes a first supporting rib plate and a second supporting rib plate, wherein the first supporting rib plate and the second supporting rib plate are fixed to opposite sides of the bottom surface of the cabinet.

19. The control cabinet according to claim 18, characterized in that: It also includes a first support rib plate fixing block and a second support rib plate fixing block, wherein the first support rib plate fixing block and the second support rib plate fixing block are fixed to the inner surface of the bottom of the cabinet, and threaded holes are provided on the first support rib plate fixing block and the second support rib plate fixing block; The first support rib is fixedly connected to the first support rib fixing block by bolts, and the second support rib is fixedly connected to the second support rib fixing block by bolts.

20. The control cabinet according to claim 5, characterized in that: The wind shield structure includes a middle wind shield, a first side wind shield and a second side wind shield; along the second direction, the middle wind shield is located on one side of the isolation gap close to the first side plate of the cabinet; The top of the intermediate wind shield is connected to the top inner surface of the cabinet, the bottom of the intermediate wind shield is connected to the bottom inner surface of the cabinet, one side of the intermediate wind shield along the second direction is connected to the first side plate of the cabinet, and the other side of the intermediate wind shield along the second direction is connected to the first electrical component and the second electrical component; The first side wind shield is arranged on a side of the first air inlet space away from the second air inlet space, the top of the first side wind shield is connected to the top inner surface of the cabinet, the bottom of the first side wind shield is connected to the bottom inner surface of the cabinet, and the first side plate of the cabinet, the first side wind shield, the top inner surface of the cabinet, the bottom inner surface of the cabinet and the housing of the first electrical component enclose to form the first air inlet space; The second side wind shield plate is arranged on a side of the second air inlet space away from the first air inlet space, the top of the second side wind shield plate is connected to the top inner surface of the cabinet, the bottom of the second side wind shield plate is connected to the bottom inner surface of the cabinet, and the first side panel of the cabinet, the second side wind shield plate, the top inner surface of the cabinet, the bottom inner surface of the cabinet and the outer shell of the second electrical component enclose a second air inlet space.

21. The control cabinet according to claim 20, characterized in that: The intermediate wind shield includes a first wind shield and a second wind shield, the first wind shield is connected to the first side panel of the cabinet along one side of the second direction, the first wind shield is connected to the first electrical component along the other side of the second direction, the second wind shield is connected to the first side panel of the cabinet along one side of the second direction, and the second wind shield is connected to the second electrical component along the other side of the second direction.

22. The control cabinet according to claim 21, characterized in that: The first windshield comprises a first windshield body, a first flange and a second flange, wherein the first flange is connected to one side of the first windshield body along the second direction and is bent in a direction away from the second air inlet space, and the second flange is connected to the other side of the first windshield body along the second direction and is bent in a direction away from the first air inlet space; the first flange is attached to the inner side surface of the first side plate of the cabinet, and the second flange is connected to the first electrical component; The second wind shield comprises a second wind shield body and a third flange, the second wind shield body is attached to the surface of the first wind shield body away from the first air inlet space, one side of the second wind shield body along the second direction is connected to the inner side of the first side plate of the cabinet, the third flange is connected to the other side of the second wind shield body along the second direction and is bent in the direction away from the first air inlet space; the third flange is connected to the second electrical component; The first side wind shield plate comprises a first side wind shield plate body, a fourth flange and a fifth flange, the fourth flange being connected to one side of the first side wind shield plate body along the second direction and being bent in a direction close to the second air inlet space, the fifth flange being connected to the other side of the first side wind shield plate body along the second direction and being bent in a direction away from the second air inlet space; the fourth flange is attached to the inner side surface of the first side plate of the cabinet body, and the fifth flange is connected to the first electrical component; The second side wind shield plate includes a second side wind shield plate body, a sixth flange and a seventh flange, the sixth flange is connected to one side of the second side wind shield plate body along the second direction and is bent in a direction away from the first air inlet space, the seventh flange is connected to the other side of the second side wind shield plate body along the second direction and is bent in a direction away from the first air inlet space; the sixth flange is connected to the second electrical component, and the side of the seventh flange away from the second side wind shield plate body is connected to the inner surface of the cabinet.

23. The control cabinet according to claim 22, characterized in that: The wind shield structure further includes a first panel and a second panel, wherein the first panel is connected to a surface of the first electrical component facing the first air inlet, and the second panel is connected to a surface of the second electrical component facing the second air inlet; The second flange is connected to one side of the first panel along the first direction, and the fifth flange is connected to the other side of the first panel along the first direction; the third flange is connected to one side of the second panel along the first direction, and the sixth flange is connected to the other side of the second panel along the first direction.

24. The control cabinet according to claim 4, characterized in that: A plurality of the first air inlets are arranged side by side along the first direction; and / or, A plurality of the second air inlets are arranged side by side along the first direction.

25. The control cabinet according to claim 1, characterized in that: The cabinet comprises a cabinet body with a top opening and a top cover sealedly connected to the top opening of the cabinet body, the cabinet body comprises a bottom plate and a surrounding plate connected between the top cover and the bottom plate, the surrounding plate comprises a first cabinet side plate, a second cabinet side plate, a third cabinet side plate and a fourth cabinet side plate connected in sequence, the second cabinet side plate and the fourth cabinet side plate are opposite to each other along a first direction, and the first cabinet side plate and the third cabinet side plate are opposite to each other along a second direction; The first air inlet is at least arranged on the first side panel of the cabinet, the second air inlet is at least arranged on the first side panel of the cabinet, and the air outlet is arranged on at least one of the top cover, the second side panel of the cabinet, the third side panel of the cabinet and the fourth side panel of the cabinet.

26. The control cabinet according to claim 25, characterized in that: There are multiple first air inlets; all of the multiple first air inlets are arranged on the first side panel of the cabinet, or some of the first air inlets are arranged on the first side panel of the cabinet, and some of the first air inlets are arranged on the side of the fourth side panel of the cabinet close to the first side panel of the cabinet; and / or, There are multiple second air inlets; all of the multiple second air inlets are arranged on the first side panel of the cabinet, or some of the second air inlets are arranged on the first side panel of the cabinet, and some of the second air inlets are arranged on the second side panel of the cabinet close to the first side panel of the cabinet.

27. The control cabinet according to claim 25, characterized in that: There are multiple air outlets; some of the air outlets are arranged on the third side panel of the cabinet, some of the air outlets are arranged on the second side panel of the cabinet, and some of the air outlets are arranged on the fourth side panel of the cabinet.

28. The control cabinet according to claim 1, characterized in that: It also includes an insulating partition, the top side of which is connected to the top inner surface of the cabinet, and the bottom side of which is connected to the bottom inner surface of the cabinet. The insulating partition is arranged between the first electrical component and the second electrical component to separate the exhaust space into a first exhaust space and a second exhaust space, the first exhaust port is connected to the air outlet through the first exhaust space, and the second exhaust port is connected to the air outlet through the second exhaust space.

29. An energy storage system, characterized in that: It comprises a box body, a battery cabinet and a control cabinet as described in any one of claims 1 and 3-28, wherein the battery cabinet and the control cabinet are placed in the box body.

30. The energy storage system according to claim 29, characterized in that: The control cabinet is placed on the top of the battery cabinet.

31. The energy storage system according to claim 29, characterized in that: It also includes a refrigerator and a liquid cooling pipeline structure arranged in the box; The battery cabinet comprises a shell and a battery module arranged in the shell, a liquid cooling cavity is provided between the battery module and the inner wall of the shell, the battery module is immersed in the cooling liquid in the liquid cooling cavity, and the shell is provided with a liquid inlet and a liquid outlet communicating with the liquid cooling cavity; A heat exchange channel is provided in the refrigerator, and the heat exchange channel has a coolant inlet and a coolant outlet; the liquid cooling pipeline structure includes a liquid inlet pipeline and a liquid return pipeline, the liquid inlet pipeline includes a liquid inlet main pipe and a liquid inlet branch pipe, one end of the liquid inlet main pipe is connected to the coolant outlet, one end of the liquid inlet branch pipe is connected to the liquid inlet main pipe, and the other end is connected to the liquid inlet; the liquid return pipeline includes a liquid return main pipe and a liquid return branch pipe, one end of the liquid return main pipe is connected to the coolant inlet, one end of the liquid return branch pipe is connected to the liquid return main pipe, and the other end is connected to the liquid outlet; The refrigerator is used to cool the cooling liquid flowing through the heat exchange channel.

32. The energy storage system according to claim 31, characterized in that: The control cabinet also includes an exhaust pipe. The top of the shell is provided with an exhaust valve for exhausting gas in the coolant in the battery cabinet. The bottom end of the exhaust pipe is connected to the exhaust valve, and the top end of the exhaust pipe passes through the side of the cabinet.

33. The energy storage system according to claim 30, characterized in that: There are multiple battery cabinets and control cabinets, and a control cabinet is arranged on the top of each battery cabinet. The multiple control cabinets are arranged in one or more rows.

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