Energy storage inverter cabinet with high electromagnetic shielding performance

Abstract

The invention relates to the technical field of inverter cabinets, and particularly discloses an energy storage inverter cabinet with high electromagnetic shielding performance, which comprises a cabinet body and a water tank, a cabinet door is installed on the outer wall of the cabinet body, and heat conduction copper pipes are fixedly connected to the inner wall of the cabinet body. The water tank is mounted on the outer wall of the cabinet body; a return pipe is arranged on the top wall of the water tank; the end, away from the water tank, of the backflow pipe communicates with one end of the heat-conducting copper pipe. A water conveying mechanism is arranged on the outer wall of the cabinet body; the water conveying mechanism can convey cooling liquid in the water tank into the heat conduction copper pipe. A semiconductor chilling plate is arranged on the outer wall of the water tank; air cooling heat dissipation is replaced by water cooling heat dissipation, the phenomenon of electromagnetic wave leakage caused by the fact that a heat dissipation window is formed in the cabinet wall is avoided, and the cabinet body is promoted to have a good electromagnetic shielding effect while meeting the heat dissipation requirement.

Description

Technical Field

[0001] The present invention relates to the technical field of inverter cabinets, and more particularly to an energy storage inverter cabinet with high electromagnetic shielding performance. Background Art

[0002] An inverter is a converter that converts DC electrical energy into fixed-frequency and fixed-voltage or frequency-modulated and voltage-regulated AC electrical energy. It consists of an inverter bridge, control logic, and a filter circuit. An energy storage inverter is a type of inverter. When the inverter is working, its internal electrical components will generate heat. If a large amount of heat accumulates in the inverter cabinet, it will cause damage to the inverter equipment. Therefore, the inverter cabinet needs to have good heat dissipation performance.

[0003] In order to meet the heat dissipation requirements of internal components, most of the existing energy storage inverter cabinets need to be provided with a plurality of heat dissipation windows with ventilation functions on the cabinet wall. However, the setting of the heat dissipation windows makes it easier for electromagnetic waves to leak out from these openings, resulting in the problem that the overall electromagnetic shielding effect is inevitably poor on the premise of meeting the heat dissipation requirements. There is a contradiction between efficient heat dissipation and strong electromagnetic shielding. Summary of the Invention

[0004] The present application provides an energy storage inverter cabinet with high electromagnetic shielding performance, which has a better electromagnetic shielding effect on the premise of meeting the heat dissipation requirements of internal components.

[0005] The energy storage inverter cabinet with high electromagnetic shielding performance provided by the present application adopts the following technical solutions: An energy storage inverter cabinet with high electromagnetic shielding performance includes a cabinet body and a water tank; a cabinet door is installed on the outer wall of the open side of the cabinet body, and a heat-conducting copper tube is fixedly connected to the inner wall of the cabinet body; the water tank is installed on the outer wall of the cabinet body, and a coolant is contained in the water tank. A return pipe communicating with the water tank is provided on the top wall of the water tank; the end of the return pipe far away from the water tank is communicated with one end of the heat-conducting copper tube; a water delivery mechanism is provided on the outer wall of the cabinet body; the water delivery mechanism can deliver the coolant in the water tank into the heat-conducting copper tube; a semiconductor refrigeration sheet is provided on the outer wall of the water tank.

[0006] By adopting the above technical solution, during heat dissipation, the water delivery mechanism conveys the coolant in the water tank to the heat-conducting copper tube and returns it to the water tank through the return pipe to achieve circulation. During the circulation of the coolant, the heat generated by the electrical components in the cabinet is transferred to the heat-conducting copper tube through heat conduction. The heat on the heat-conducting copper tube is then heat-exchanged with the coolant flowing inside it to dissipate the heat generated when the electrical components work. The semiconductor refrigeration sheet arranged on the outer wall of the water tank can effectively cool the coolant in the water tank, ensuring the heat-exchange effect between the coolant and the heat-conducting copper tube. By replacing air-cooled heat dissipation with water-cooled heat dissipation, the occurrence of electromagnetic wave leakage caused by opening heat dissipation windows on the cabinet wall is avoided, promoting the cabinet to have a better electromagnetic shielding effect.

[0007] Preferably, the water delivery mechanism includes a pump body; the pump body is installed on the outer wall of the cabinet, and the output end of the pump body is fixedly connected with a water inlet pipe communicating with the inside of the water tank, and the output end of the pump body is fixedly connected with a water outlet pipe communicating with one end of the heat-conducting copper tube away from the return pipe.

[0008] By adopting the above technical solution, starting the water pump can extract the coolant in the water tank and convey the coolant to the heat-conducting copper tube, so as to promote the heat exchange between the coolant and the heat generated when the electrical components work, reduce the space where the internal environment of the cabinet contacts the external environment, and ensure the electromagnetic shielding effect of the cabinet.

[0009] Preferably, a motor is installed on the outer wall of the water tank; the output end of the motor is coaxially fixedly connected with a drive shaft; the drive shaft horizontally extends into the water tank and is located at the bottom of the return pipe, and a plurality of flapping plates are arranged on the outer wall of the drive shaft.

[0010] By adopting the above technical solution, during the process of heat exchange when the coolant circulates and flows, starting the motor drives the drive shaft and the flapping plates to rotate. The rotating flapping plates can flap the coolant flowing down from the return pipe, causing the returned coolant to disperse to the inner wall of the water tank and flow down in multiple strands, so that the semiconductor refrigeration sheet can better cool the coolant in the water tank and ensure the water-cooling effect of the coolant.

[0011] Preferably, a blowing pipe is fixedly connected to the outer wall of the water tank; a jet nozzle facing the semiconductor refrigeration sheet is fixedly connected to the outer wall of the blowing pipe; a blowing air duct is fixedly connected to the outer wall of the water tank where the motor is located; a first rotating shaft is coaxially rotatably connected to the inner wall of the end of the blowing air duct close to the drive shaft; a first fan blade is fixedly connected to the outer wall of one end of the first rotating shaft; a connecting pipe communicating the blowing air duct with the blowing pipe is arranged at the end of the blowing air duct away from the first fan blade; a first transmission component is arranged at the end of the first rotating shaft away from the first fan blade; the first transmission component can make the drive shaft drive the first rotating shaft to rotate.

[0012] By adopting the above technical solution, during the rotation of the drive shaft, the first transmission component drives the first rotating shaft and the first fan blade to rotate. Through the rotation of the first fan blade, air is continuously blown into the air duct, and the air flow is blown into the air pipe through the connecting pipe. The air flow in the air pipe is then blown out towards the semiconductor refrigeration sheet through the air nozzle, so as to cool the semiconductor refrigeration sheet arranged on the outer wall of the water tank by air cooling, improve the heat exchange efficiency of the semiconductor refrigeration sheet, and enable the semiconductor refrigeration sheet to better cool the coolant.

[0013] Preferably, the first transmission component includes a first bevel gear and a second bevel gear; the first bevel gear is coaxially fixed on the outer wall of the drive shaft; the second bevel gear is coaxially fixed on the outer wall of the end of the first rotating shaft away from the first fan blade, and the second bevel gear is located outside the air duct and meshes with the first bevel gear.

[0014] By adopting the above technical solution, under the meshing and cooperation of the first bevel gear and the second bevel gear, the drive shaft will drive the first rotating shaft to rotate during the rotation process, realizing the transmission of kinetic energy during the rotation of the drive shaft, so as to prompt the first rotating shaft to drive the first fan blade to rotate and blow air into the air pipe.

[0015] Preferably, a first filter screen is installed on the inner wall of the air duct near the end of the first fan blade; the first rotating shaft passes through the first filter screen and rotates in cooperation with the first filter screen.

[0016] By adopting the above technical solution, the first filter screen is provided to filter and block dust and impurities in the external environment, reduce the possibility of dust and impurities in the external environment entering the air duct, and further reduce the possibility of the air nozzle being blocked by dust and impurities.

[0017] Preferably, a discharge air duct coaxial with the drive shaft is horizontally fixed on the outer wall of the cabinet body where the water tank is located; the discharge air duct communicates the cabinet body with the external environment, and a second rotating shaft is coaxially rotatably connected to the inner wall of the end of the discharge air duct away from the cabinet body; a second fan blade is fixed on the outer wall of one end of the second rotating shaft, and a second transmission component is arranged at the end of the second rotating shaft away from the second fan blade; the second transmission component can enable the drive shaft to drive the second rotating shaft to rotate.

[0018] By adopting the above technical solution, during the rotation of the drive shaft, the second transmission component drives the second rotating shaft and the second fan blade to rotate. Through the rotation of the second fan blade, the high-temperature gas in the cabinet body is discharged to the external environment through the discharge air duct, assisting in dissipating the heat in the cabinet body and improving the overall heat dissipation effect of the cabinet body.

[0019] Preferably, the second transmission assembly includes a first pulley, a second pulley and a belt; the first pulley is coaxially fixed on the outer wall of the end of the drive shaft; the second pulley is coaxially fixed on the outer wall of the end of the second rotating shaft away from the second fan blade, and the second pulley is located outside the exhaust pipe; the belt is sleeved outside the first pulley and the second pulley.

[0020] By adopting the above technical solution, under the cooperative work of the first pulley, the second pulley and the belt, the drive shaft will drive the second rotating shaft to rotate during the rotation process, realizing the transmission of kinetic energy during the rotation process of the drive shaft, so as to promote the second rotating shaft to drive the second fan blade to rotate for air extraction and heat dissipation.

[0021] Preferably, a second filter screen is installed on the inner wall of the end of the exhaust pipe away from the cabinet body; the second rotating shaft passes through the second filter screen and is rotationally matched with the second filter screen.

[0022] By adopting the above technical solution, the setting of the second filter screen is used to filter and block dust and impurities in the external environment, so that the dust and impurities in the external environment are not easily introduced into the cabinet body through the exhaust pipe, promoting the cleanliness of the internal environment of the cabinet body, and reducing the possibility of dust and impurities interfering with the operation of electrical components in the cabinet body.

[0023] Preferably, a plurality of electromagnetic absorption sheets are arranged on the inner wall of the exhaust pipe.

[0024] By adopting the above technical solution, the arrangement of the electromagnetic absorption sheets can change the straight-line flowing air flow in the exhaust pipe into a curve, and absorb electromagnetic signals on the premise of not affecting ventilation, reducing the possibility of electromagnetic signal leakage.

[0025] To sum up, the present application has the following beneficial effects: 1. When the cabinet body dissipates heat, the water pump first transports the coolant in the water tank to the heat conduction copper pipe and then returns to the water tank through the return pipe to realize circulation. The heat generated by the operation of the electrical components in the cabinet body will be transferred to the heat conduction copper pipe to exchange heat with the coolant, effectively dissipating the heat generated during the operation of the electrical components. By replacing the trouble of opening heat dissipation windows on the cabinet wall with a water cooling method, the space for the internal environment of the cabinet body to contact the external environment is reduced, so that the cabinet body takes into account good electromagnetic shielding effect while meeting the heat dissipation requirements. The semiconductor refrigeration sheet arranged on the outer wall of the water tank can effectively cool the coolant in the water tank, ensuring the water cooling effect during the circulation use of the coolant; 2. During the circulation of the coolant, start the motor to drive the drive shaft and the flapper to rotate. By flapping the coolant flowing down from the return pipe with the flapper, the coolant is scattered on the inner wall of the water tank and flows down in multiple strands, so that the semiconductor refrigeration sheet can better cool the coolant; 3. During the rotation of the drive shaft, the first rotating shaft and the first fan blade are driven to rotate through the first transmission assembly, prompting the first fan blade to blow air into the air duct and blowing the air flow to the air pipe through the connecting pipe. Finally, the air flow blows towards the semiconductor refrigeration sheet through the air nozzle, blowing air to cool the semiconductor refrigeration sheet, improving the heat exchange efficiency of the semiconductor refrigeration sheet, and further enhancing the cooling effect of the semiconductor refrigeration sheet on the coolant. Description of the Drawings

[0026] Figure 1 is a schematic structural diagram of an energy storage inverter cabinet with high electromagnetic shielding performance; Figure 2 is a schematic structural diagram of the cooperation between the cabinet body and the water tank in this application; Figure 3 is a schematic structural diagram of the cooperation between the heat-conducting copper pipe, the return pipe and the water delivery mechanism in this application; Figure 4 is a schematic structural diagram of the cooperation between the water tank, the return pipe and the flapping plate in this application; Figure 5 is a schematic structural diagram of the cooperation between the drive shaft, the first rotating shaft and the first transmission assembly in this application; Figure 6 is a schematic structural diagram of the cooperation between the drive shaft, the second rotating shaft and the second transmission assembly in this application.

[0027] Description of the reference numerals in the drawings: 1. Cabinet body; 11. Cabinet door; 2. Water tank; 21. Return pipe; 22. Motor; 23. Drive shaft; 24. Flapping plate; 25. Air pipe; 251. Air nozzle; 3. Heat-conducting copper pipe; 4. Water delivery mechanism; 41. Pump body; 42. Water inlet pipe; 43. Water outlet pipe; 5. Semiconductor refrigeration sheet; 6. Air duct; 61. First rotating shaft; 62. First fan blade; 63. Connecting pipe; 64. First transmission assembly; 641. First bevel gear; 642. Second bevel gear; 65. First filter screen; 7. Exhaust duct; 71. Second rotating shaft; 72. Second fan blade; 73. Second transmission assembly; 731. First pulley; 732. Second pulley; 733. Belt; 74. Second filter screen; 75. Electromagnetic absorption sheet. Detailed implementation manners

[0028] The present invention will be further described in detail below with reference to the accompanying drawings. The same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper", "lower", "bottom surface" and "top surface" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0029] The present invention discloses an energy storage inverter cabinet with high electromagnetic shielding performance, such as Figure 1 , Figure 2 andFigure 3 As shown, it includes a cabinet 1, a water tank 2, a heat-conducting copper tube 3 and a water delivery mechanism 4. One side of the cabinet 1 is open, and a cabinet door 11 is installed on the outer wall of the open side of the cabinet 1. The cabinet 1 and the cabinet door 11 are both made of aluminum alloy; the heat-conducting copper tube 3 is fixedly connected to the inner wall of the cabinet 1, and the heat-conducting copper tube 3 is arranged in a curved serpentine shape. The water tank 2 is fixedly connected to the outer wall of the cabinet 1 away from the cabinet door 11. Coolant is contained in the water tank 2. A return pipe 21 is fixedly connected to the top wall of the water tank 2. The end of the return pipe 21 away from the water tank 2 is fixedly connected to the outlet end of the heat-conducting copper tube 3. The return pipe 21 connects the heat-conducting copper tube 3 and the water tank 2. The water delivery mechanism 4 is arranged on the outer wall of the water tank 2. The water delivery mechanism 4 can deliver the coolant in the water tank 2 from the inlet end of the heat-conducting copper tube 3 into the heat-conducting copper tube 3; The water delivery mechanism 4 includes a pump body 41, a water inlet pipe 42 and a water outlet pipe 43. The pump body 41 is installed on the outer wall of the cabinet 1. One end of the water inlet pipe 42 is fixedly connected to the input end of the pump body 41, and the other end is fixedly connected to the side wall of the water tank 2 near the bottom end to communicate with the water tank 2. One end of the water outlet pipe 43 is fixedly connected to the output end of the pump body 41, and the other end is fixedly connected to the inlet end of the heat-conducting copper tube 3 to communicate with the heat-conducting copper tube 3.

[0030] When the cabinet 1 is cooled, the water pump is started to transport the coolant in the water tank 2 to the heat-conducting copper tube 3, and then the coolant is refluxed to the water tank 2 through the return pipe 21 to realize circulation. During the circulation of the coolant, the heat generated by the electrical components in the cabinet 1 will be transferred to the heat-conducting copper tube 3 for heat exchange with the coolant, thereby effectively dissipating the heat generated by the electrical components when they are working. Water cooling replaces the trouble of opening a heat dissipation window on the cabinet wall, reduces the space in which the internal environment of the cabinet 1 contacts the external environment, and enables the cabinet 1 to meet the heat dissipation requirements while taking into account a good electromagnetic shielding effect.

[0031] like Figure 1 and Figure 2 As shown, the water tank 2 is made of aluminum alloy, and a plurality of semiconductor cooling sheets 5 are fixedly connected to the outer wall of the water tank 2 .

[0032] The water tank 2 made of aluminum alloy has good thermal conductivity. The semiconductor refrigeration sheet 5 arranged on the outer wall of the water tank 2 can effectively cool the coolant in the water tank 2 to ensure the water cooling effect of the coolant during the circulation process.

[0033] like Figure 2 and Figure 4 As shown, a motor 22 is horizontally mounted on the outer wall of the water tank 2 away from the cabinet 1 through a fixing plate, and a driving shaft 23 extending into the water tank 2 is coaxially fixedly connected to the output end of the motor 22, and a plurality of clapping plates 24 are fixedly connected to the outer wall of the driving shaft 23 corresponding to the position of the return pipe 21.

[0034] During the process of coolant circulating, the starting motor 22 drives the drive shaft 23 and the flapping plate 24 to rotate. The rotating flapping plate 24 flaps the coolant flowing down from the return pipe 21, prompting the coolant to disperse on the inner wall of the water tank 2 and flow down in multiple strands, so that the semiconductor refrigeration sheet 5 can better cool the coolant.

[0035] As Figure 2 and Figure 5 shown, a blowing pipe 25 is horizontally and fixedly connected to the outer wall of the water tank 2 at the top of multiple semiconductor refrigeration sheets 5. A plurality of air jet nozzles 251 are fixedly connected to the outer wall of the blowing pipe 25 and arranged vertically downward towards the semiconductor refrigeration sheets 5. A blowing air pipe 6 is vertically and fixedly connected to the outer wall of the water tank 2 away from the cabinet body 1 at the bottom of the motor 22. A connecting pipe 63 is fixedly connected to the inner wall of the bottom end of the blowing air pipe 6. The end of the connecting pipe 63 away from the blowing air pipe 6 is fixedly connected to the side wall of the blowing pipe 25 and communicates with the blowing pipe 25. A first rotating shaft 61 is coaxially and rotatably connected to the inner wall of the end of the blowing air pipe 6 close to the motor 22 through a first support plate. A first fan blade 62 is fixedly connected to the outer wall of the bottom end of the first rotating shaft 61. A first filter screen 65 is installed on the inner wall of the top end of the blowing air pipe 6 at the top of the first fan blade 62. A first transmission component 64 is arranged at the top end of the first rotating shaft 61 to enable the drive shaft 23 to drive the first rotating shaft 61 to rotate.

[0036] During the rotation of the drive shaft 23, it will drive the first rotating shaft 61 and the first fan blade 62 to rotate through the first transmission component 64. The first fan blade 62 blows air into the blowing air pipe 6 and blows the air flow into the blowing pipe 25 through the connecting pipe 63. The air flow finally blows towards the semiconductor refrigeration sheet 5 through the air jet nozzles 251, blowing and cooling the semiconductor refrigeration sheet 5, improving the heat exchange efficiency of the semiconductor refrigeration sheet 5, so that the semiconductor refrigeration sheet 5 can better cool the coolant in the water tank 2.

[0037] As Figure 2 and Figure 5 shown, the top end of the first rotating shaft 61 penetrates through the first filter screen 65 and extends to the top of the blowing air pipe 6. The first rotating shaft 61 is rotationally matched with the first filter screen 65. The first transmission component 64 includes a first bevel gear 641 and a second bevel gear 642. The first bevel gear 641 is coaxially fixedly connected to the outer wall of the end of the drive shaft 23 close to the first rotating shaft 61. The second bevel gear 642 is coaxially fixedly connected to the outer wall of the top end of the first rotating shaft 61. The second bevel gear 642 meshes with the first bevel gear 641.

[0038] Under the meshing cooperation of the first bevel gear 641 and the second bevel gear 642, the drive shaft 23 will drive the first rotating shaft 61 to rotate during the rotation process, realizing the transmission of kinetic energy during the rotation of the drive shaft 23, so as to prompt the first fan blade 62 to be able to rotate and blow air into the blowing pipe 25.

[0039] As Figure 2 and Figure 6As shown in the figure, an exhaust duct 7 is horizontally and fixedly connected to the outer wall of the cabinet body 1 near the water tank 2. The exhaust duct 7 is arranged coaxially with the drive shaft 23 to connect the cabinet body 1 with the external environment. A second rotating shaft 71 is coaxially and rotatably connected to the inner wall of the exhaust duct 7 through a second support plate. A second fan blade 72 located inside the exhaust duct 7 is fixedly connected to the outer wall of the second rotating shaft 71. A second filter screen 74 is installed on the inner wall of the end of the exhaust duct 7 far from the cabinet body 1. A plurality of electromagnetic absorption sheets 75 are fixedly connected to the inner wall of the exhaust duct 7 on the side of the second fan blade 72 far from the second filter screen 74. The plurality of electromagnetic absorption sheets 75 are arranged at intervals in a staggered manner in the vertical direction along the axis of the exhaust duct 7. A second transmission assembly 73 is provided at the end of the second rotating shaft 71 far from the second fan blade 72, which can enable the drive shaft 23 to drive the second rotating shaft 71 to rotate.

[0040] During the rotation of the drive shaft 23, the second rotating shaft 71 and the second fan blade 72 are driven to rotate through the second transmission assembly 73, so as to promote the high-temperature gas inside the cabinet body 1 to be discharged to the external environment through the exhaust duct 7, and assist in dissipating heat from the cabinet body 1. The electromagnetic absorption sheets 75 can effectively absorb electromagnetic signals, reducing the possibility of electromagnetic signal leakage through the exhaust duct 7. The second filter screen 74 is used to filter and block dust and impurities, reducing the possibility of dust and impurities entering the cabinet body 1.

[0041] As Figure 2 and Figure 6 shown in the figure, the end of the second rotating shaft 71 far from the second fan blade 72 passes through the second filter screen 74 and extends to the outside of the exhaust duct 7. The second rotating shaft 71 is rotationally matched with the second filter screen 74. The second transmission assembly 73 includes a first pulley 731, a second pulley 732 and a belt 733. The first pulley 731 is coaxially and fixedly connected to the outer wall of the end of the drive shaft 23. The second pulley 732 is coaxially and fixedly connected to the outer wall of the end of the second rotating shaft 71 far from the second fan blade 72. The belt 733 is tensioned and sleeved outside the first pulley 731 and the second pulley 732, and the belt 733 links the first pulley 731 and the second pulley 732.

[0042] Under the cooperative work of the first pulley 731, the second pulley 732 and the belt 733, the drive shaft 23 will drive the second rotating shaft 71 and the second fan blade 72 to rotate during the rotation process, realizing the transmission of kinetic energy during the rotation of the drive shaft 23, so as to promote the second fan blade 72 to rotate and extract air from the cabinet body 1 for heat dissipation.

[0043] Working principle: When dissipating the heat generated by the electrical components in the cabinet 1, start the water pump to transport the coolant in the water tank 2 to the heat-conducting copper tube 3, and then return it to the water tank 2 through the return pipe 21 to realize circulation. During the circulation of the coolant, the heat generated by the electrical components in the cabinet 1 will be transferred to the heat-conducting copper tube 3 to exchange heat with the coolant flowing in the heat-conducting copper tube 3. The coolant that absorbs heat and flows back to the water tank 2 will then be dissipated and cooled by the semiconductor refrigeration plate 5 arranged on the outer wall of the water tank 2, effectively dissipating the heat generated by the electrical components when they are working, reducing the space in which the internal environment of the cabinet 1 contacts the external environment, and enabling the cabinet 1 to meet the heat dissipation requirements while taking into account a good electromagnetic shielding effect; In the process of circulating the coolant to dissipate the heat inside the cabinet 1, the starter motor 22 drives the drive shaft 23 to rotate, so that the slapping plate 24 hits the coolant falling back into the water tank 2, causing the refluxed coolant to scatter on the inner wall of the water tank 2, so that the semiconductor refrigeration plate 5 can better cool the coolant and ensure the heat exchange effect between the coolant and the heat inside the cabinet 1; During the rotation process, the driving shaft 23 will drive the second rotating shaft 71 and the second fan blade 72 to rotate through the second transmission assembly 73, causing the high-temperature gas inside the cabinet 1 to be discharged to the external environment through the exhaust duct 7, assisting in the dissipation of heat inside the cabinet 1, and improving the heat dissipation effect of the cabinet 1. The electromagnetic absorption sheet 75 in the exhaust duct 7 can absorb electromagnetic signals while ensuring that the exhaust duct 7 can be ventilated smoothly, reducing the possibility of electromagnetic signals leaking through the exhaust duct 7, and causing the cabinet 1 to have a good electromagnetic shielding effect.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An energy storage inverter cabinet with high electromagnetic shielding performance, characterized in that: It includes a cabinet body (1) and a water tank (2); a cabinet door (11) is installed on the outer wall of the open side of the cabinet body (1), and a heat-conducting copper tube (3) is fixedly connected to the inner wall of the cabinet body (1); the water tank (2) is installed on the outer wall of the cabinet body (1), a coolant is contained in the water tank (2), and a return pipe (21) communicating with the water tank (2) is arranged on the top wall of the water tank (2); the end of the return pipe (21) far from the water tank (2) is communicated with one end of the heat-conducting copper tube (3); a water delivery mechanism (4) is arranged on the outer wall of the cabinet body (1); the water delivery mechanism (4) can deliver the coolant in the water tank (2) into the heat-conducting copper tube (3); a semiconductor refrigeration sheet (5) is arranged on the outer wall of the water tank (2).

2. The energy storage inverter cabinet with high electromagnetic shielding performance according to claim 1, wherein: The water delivery mechanism (4) includes a pump body (41); the pump body (41) is installed on the outer wall of the cabinet body (1), a water inlet pipe (42) communicating with the inside of the water tank (2) is fixedly connected to the output end of the pump body (41), and a water outlet pipe (43) communicating with the end of the heat-conducting copper tube (3) far from the return pipe (21) is fixedly connected to the output end of the pump body (41).

3. A power storage inverter cabinet with high electromagnetic shielding performance according to claim 1, characterized in that: A motor (22) is installed on the outer wall of the water tank (2); a driving shaft (23) is coaxially fixedly connected to the output end of the motor (22); the driving shaft (23) horizontally extends into the water tank (2) and is located at the bottom of the return pipe (21), and a plurality of flapping plates (24) are arranged on the outer wall of the driving shaft (23).

4. The energy storage inverter cabinet with high electromagnetic shielding performance according to claim 3, characterized in that: A blowing pipe (25) is fixedly connected to the outer wall of the water tank (2); a jet nozzle (251) arranged towards the semiconductor refrigeration sheet (5) is fixedly connected to the outer wall of the blowing pipe (25); a blowing air duct (6) is fixedly connected to the outer wall of the water tank (2) where the motor (22) is located; a first rotating shaft (61) is coaxially rotatably connected to the inner wall of the end of the blowing air duct (6) close to the driving shaft (23); a first fan blade (62) is fixedly connected to the outer wall of one end of the first rotating shaft (61); a connecting pipe (63) communicating the blowing air duct (6) with the blowing pipe (25) is arranged at the end of the blowing air duct (6) far from the first fan blade (62); a first transmission component (64) is arranged at the end of the first rotating shaft (61) far from the first fan blade (62); the first transmission component (64) can make the driving shaft (23) drive the first rotating shaft (61) to rotate.

5. The energy storage inverter cabinet with high electromagnetic shielding performance according to claim 4, characterized in that: The first transmission component (64) includes a first bevel gear (641) and a second bevel gear (642); the first bevel gear (641) is coaxially fixedly connected to the outer wall of the driving shaft (23); the second bevel gear (642) is coaxially fixedly connected to the outer wall of the end of the first rotating shaft (61) far from the first fan blade (62), and the second bevel gear (642) is located outside the blowing air duct (6) and meshes with the first bevel gear (641).

6. The energy storage inverter cabinet with high electromagnetic shielding performance according to claim 4, characterized in that: A first filter screen (65) is installed on the inner wall of the end of the blowing air duct (6) close to the first fan blade (62); the first rotating shaft (61) passes through the first filter screen (65) and is rotationally matched with the first filter screen (65).

7. The energy storage inverter cabinet with high electromagnetic shielding performance according to claim 3, characterized in that: On the outer wall of the cabinet body (1) where the water tank (2) is located, an exhaust duct (7) coaxial with the drive shaft (23) is horizontally and fixedly connected; the exhaust duct (7) communicates the cabinet body (1) with the external environment, and a second rotating shaft (71) is coaxially rotatably connected to the inner wall of the end of the exhaust duct (7) far from the cabinet body (1); on the outer wall of one end of the second rotating shaft (71), a second fan blade (72) is fixedly connected, and a second transmission assembly (73) is arranged at the end of the second rotating shaft (71) far from the second fan blade (72); the second transmission assembly (73) can make the drive shaft (23) drive the second rotating shaft (71) to rotate.

8. A energy storage inverter cabinet with high electromagnetic shielding performance according to claim 7, characterized in that: The second transmission assembly (73) includes a first pulley (731), a second pulley (732) and a belt (733); the first pulley (731) is coaxially and fixedly connected to the outer wall of the end of the drive shaft (23); the second pulley (732) is coaxially and fixedly connected to the outer wall of the end of the second rotating shaft (71) far from the second fan blade (72), and the second pulley (732) is located outside the exhaust duct (7); the belt (733) is sleeved outside the first pulley (731) and the second pulley (732).

9. The energy storage inverter cabinet with high electromagnetic shielding performance according to claim 7, characterized in that: A second filter screen (74) is installed on the inner wall of the end of the exhaust duct (7) far from the cabinet body (1); the second rotating shaft (71) passes through the second filter screen (74) and is rotationally matched with the second filter screen (74).

10. A power storage inverter cabinet with high electromagnetic shielding performance according to claim 7, characterized in that: A plurality of electromagnetic absorption sheets (75) are arranged on the inner wall of the exhaust duct (7).

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