Air-cooled converter cabinet

Abstract

This invention discloses an air-cooled converter cabinet, comprising a cabinet body, an upper partition, a lower partition, a first exhaust device, a first air duct component, a first heating component, and a second heating component. The upper and lower partitions are both installed within the cabinet body, and are separated within the cabinet body to form an air inlet chamber above the upper partition for accessing outside air, an installation chamber between the upper and lower partitions, and an air outlet chamber below the lower partition for discharging air to the outside. The first heating component is installed in the installation chamber and has a heat dissipation duct. The first air duct component is installed in the installation chamber, and its upper end communicates with the heat dissipation duct in the first heating component. This invention enables cooling and heat dissipation through air cooling, has a simpler structure, and can reduce manufacturing costs.

Description

Technical Field

[0001] This invention relates to an air-cooled converter cabinet. Background Technology

[0002] Currently, converter cabinets are electrical devices that rectify and invert electricity generated by wind power before feeding it into the power grid. Many existing converter cabinets employ water cooling; for example, Chinese patent CN205283376U discloses a water-cooled converter cabinet. However, water cooling requires a separate water cooling system design, and a chiller is also needed to cool the cooling water, significantly increasing manufacturing costs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide an air-cooled converter cabinet that can be cooled and dissipated by air cooling, has a simpler structure, and can reduce manufacturing costs.

[0004] To solve the above-mentioned technical problems, the technical solution of the present invention is: an air-cooled converter cabinet, comprising a cabinet body, an upper partition, a lower partition, a first exhaust device, a first air duct component, a first heating component, and a second heating component; wherein...

[0005] Both the upper partition and the lower partition are installed inside the cabinet. The upper partition and the lower partition are separated inside the cabinet to form an air inlet chamber located above the upper partition for accessing outside air, an installation chamber located between the upper partition and the lower partition, and an air outlet chamber located below the lower partition for discharging air to the outside.

[0006] The first heating element is installed in the mounting chamber, and the first heating element has a heat dissipation air duct.

[0007] The first air duct component is installed in the mounting chamber, the upper end of the first air duct component is connected to the heat dissipation air duct in the first heating component, and the lower end of the first air duct component is connected to the air outlet chamber.

[0008] The first exhaust device is connected to the upper partition plate. The first exhaust device is connected to the heat dissipation duct in the first heating component and is used to draw the air in the air inlet chamber into the heat dissipation duct. Then the air in the heat dissipation duct flows through the first duct component and enters the air outlet chamber and is discharged outward.

[0009] The second heating element is installed in the first air duct component.

[0010] Further, a specific structure of the first exhaust device is provided, wherein the first exhaust device includes a first fan and a first exhaust hood; wherein...

[0011] The first heating element is installed below the first exhaust hood;

[0012] The first exhaust hood is connected to the upper partition plate, and the bottom of the first exhaust hood is provided with an exhaust port corresponding to the first heating component. The exhaust port is aligned and connected with the heat dissipation air duct in the corresponding first heating component.

[0013] The first fan is installed in the first exhaust hood, and the air inlet of the first fan is connected to the air inlet chamber so that the first fan draws the air in the air inlet chamber into the first exhaust hood and the air in the first exhaust hood flows into the heat dissipation duct through the exhaust port.

[0014] Furthermore, at least two first heating elements are arranged side by side, and the exhaust vents correspond one-to-one with the first heating elements and are aligned and connected to the heat dissipation ducts in the corresponding first heating elements.

[0015] A bushing corresponding to the first heating element is provided between the first exhaust hood and the first heating element.

[0016] The bushing includes a vertical bushing wall and a horizontal bushing wall;

[0017] The transverse sleeve wall is connected to the upper end of the vertical sleeve wall and extends outward;

[0018] The vertical sleeve extends into the heat dissipation duct of the corresponding first heating component, and the horizontal sleeve is located between the bottom of the first exhaust hood and the top of the corresponding first heating component. Sealing strips are provided between the horizontal sleeve and the bottom of the first exhaust hood and between the horizontal sleeve and the top of the corresponding first heating component.

[0019] Furthermore, the air-cooled converter cabinet also includes a first drain pipe;

[0020] The lower end of the first exhaust hood is provided with a first drain hole;

[0021] The upper end of the first drain pipe is connected to the first drain hole, and the lower end of the first drain pipe extends into the air outlet chamber.

[0022] Furthermore, a support plate is installed inside the cabinet;

[0023] The lower end of the first heating element is connected to the support plate;

[0024] The upper end of the first air duct component is connected to the support plate;

[0025] The support plate is provided with ventilation holes, and the lower end of the heat dissipation air duct in the first heating component is connected to the upper end of the first air duct component through the ventilation holes;

[0026] The lower end of the first air duct component is connected to the lower partition plate, the lower partition plate is provided with a communication port, the lower end of the first air duct component is connected to the air outlet chamber through the communication port, and a first filter screen covering the communication port is connected to the lower partition plate.

[0027] Furthermore, the cabinet is provided with at least one air inlet communicating with the air inlet chamber, and an air inlet assembly is installed in the air inlet. The air inlet assembly includes an outer frame, an air guide cover, an air guide filter, and at least two louvers; wherein,

[0028] The outer frame is connected to the cabinet body;

[0029] The bottom wall, left side wall, and right side wall of the air guide cover are all connected to the outer frame, and the air guide cover is located in the corresponding air inlet;

[0030] The outer frame is provided with a first air vent that communicates with the air guide cover, and the upper end of the air guide cover is provided with a second air vent that communicates with the air inlet chamber.

[0031] The air guide filter is connected to the outer frame and covers the first air outlet;

[0032] The louvers are arranged sequentially from top to bottom in the air guide cover, and the louvers are inclined towards the first air outlet from bottom to top.

[0033] Furthermore, a rain cover corresponding to the air inlet and covering the outside of the corresponding air inlet is connected to the cabinet body. The lower end of the rain cover is provided with a downward-facing third air inlet, and an air inlet filter is installed in the third air inlet.

[0034] And / or the bottom wall of the air guide cover is inclined, with the end of the bottom wall of the air guide cover near the first air outlet being lower than the end away from the first air outlet.

[0035] Furthermore, the air-cooled converter cabinet also includes a second air duct component, a third air duct component, a second exhaust device, a third exhaust device, a third heating element, and a heat exchanger; wherein,

[0036] The cabinet is equipped with an exhaust port, and an exhaust filter screen is installed in the exhaust port.

[0037] The heat exchanger is installed in the mounting chamber and has a first fluid channel and a second fluid channel.

[0038] The second air duct component is installed in the mounting chamber, and the lower end of the second air duct component is used to communicate with the inlet of the first fluid channel in the heat exchanger, and the outlet of the first fluid channel is communicated with the exhaust port;

[0039] The second exhaust device is connected to the upper partition plate. The second exhaust device is connected to the upper end of the second air duct component and is used to draw air from the air inlet chamber into the second air duct component. Then, the air in the second air duct component flows through the first fluid channel and is discharged from the exhaust port.

[0040] The third heating element is installed in the mounting chamber and is connected to the second air duct component so that the heat in the third heating element is carried away when the air flows through the second air duct component.

[0041] The third air duct component is installed in the mounting chamber. One end of the third air duct component is used to communicate with the outlet of the second fluid channel in the heat exchanger, and the other end of the third air duct component is used to communicate with the bottom of the third heating element.

[0042] The third exhaust device is installed in the mounting chamber. The third exhaust device is connected to the inlet of the second fluid channel in the heat exchanger and is used to draw air from the mounting chamber into the second fluid channel. Then, the air in the second fluid channel flows through the third air duct component and is blown into the bottom of the third heating component.

[0043] Furthermore, the air inlet chamber is provided with a baffle plate connected to the upper partition and located between the first exhaust device and the second exhaust device.

[0044] Furthermore, the air-cooled converter cabinet also includes a second drain pipe;

[0045] The upper partition is provided with a second drainage hole;

[0046] The upper end of the second drain pipe is connected to the second drain hole, and the lower end of the second drain pipe is connected to the second air duct component.

[0047] Furthermore, the cabinet includes a cabinet door, and the exhaust vent is located on the cabinet door;

[0048] A mounting cover is connected to the cabinet door, and the heat exchanger is installed in the mounting cover. When the cabinet door is closed, the mounting cover and the heat exchanger are located in the mounting chamber.

[0049] The mounting housing has a first cavity communicating with the inlet of the first fluid channel and a second cavity communicating with the outlet of the second fluid channel.

[0050] The mounting cover is also provided with a first pair of interfaces communicating with the first cavity and a second pair of interfaces communicating with the second cavity. When the cabinet door is closed, the first pair of interfaces is aligned and connected with the lower end of the second air duct component and the second pair of interfaces is aligned and connected with one end of the third air duct component.

[0051] The third exhaust device includes a third fan and a third exhaust hood. The third exhaust hood is connected to the cabinet door and communicates with the mounting cover. The inlet of the second fluid channel in the heat exchanger is communicated with the third exhaust hood.

[0052] The third fan is installed in the third exhaust hood.

[0053] After adopting the above technical solution, under the suction action of the first exhaust device, outside air enters the air inlet chamber, and then the air in the air inlet chamber is drawn into the heat dissipation duct to dissipate heat from the first heat-generating component. Then, the air in the heat dissipation duct flows into the first air duct component to dissipate heat from the second heat-generating component, and then the air flows into the air outlet chamber and is discharged to the outside. This embodiment of the application uses air cooling to dissipate heat from the first and second heat-generating components. Compared with the water cooling method in the prior art, the structure is simpler, eliminating the need for a separate water cooling system and a chiller, greatly reducing manufacturing and usage costs. Attached Figure Description

[0054] Figure 1 This is a cross-sectional view of the air-cooled converter cabinet of the present invention. Figure 1 ;

[0055] Figure 2 This is a schematic diagram of the bushing structure of the present invention;

[0056] Figure 3 This is a cross-sectional view of the air-cooled converter cabinet of the present invention. Figure 2 ;

[0057] Figure 4 This is a schematic diagram of the structure of the first exhaust device, the first heating element, the second exhaust device, the third exhaust device, and the second air duct component of the present invention.

[0058] Figure 5 This is a schematic diagram of the air intake assembly of the present invention;

[0059] Figure 6 This is an exploded view of the air intake assembly of the present invention;

[0060] Figure 7 This is a schematic diagram of the outer frame and air guide cover of the present invention;

[0061] Figure 8This is a schematic diagram of the heat exchanger, the third exhaust device, and the mounting cover of the present invention. Detailed Implementation

[0062] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0063] like Figure 1 , 3 As shown, a wind-cooled converter cabinet includes a cabinet body 1, an upper partition 2, a lower partition 3, a first exhaust device 4, a first air duct component 5, a first heating element 6, and a second heating element 7; wherein,

[0064] The upper partition 2 and the lower partition 3 are both installed inside the cabinet 1. The upper partition 2 and the lower partition 3 are separated inside the cabinet 1 to form an air inlet chamber 8 located above the upper partition 2 for accessing outside air, an installation chamber 9 located between the upper partition 2 and the lower partition 3, and an air outlet chamber 10 located below the lower partition 3 for discharging air to the outside.

[0065] The first heating element 6 is installed in the mounting chamber 9, and the first heating element 6 has a heat dissipation duct 11;

[0066] The first air duct component 5 is installed in the mounting chamber 9. The upper end of the first air duct component 5 is connected to the heat dissipation air duct 11 in the first heating component 6, and the lower end of the first air duct component 5 is connected to the air outlet chamber 10.

[0067] The first exhaust device 4 is connected to the upper partition 2. The first exhaust device 4 is connected to the heat dissipation duct 11 in the first heating component 6 and is used to draw the air in the air inlet chamber 8 into the heat dissipation duct 11. Then the air in the heat dissipation duct 11 flows through the first air duct component 5 and enters the air outlet chamber 10 and is discharged outward.

[0068] The second heating element 7 is installed in the first air duct component 5. Specifically, under the suction action of the first exhaust device 4, outside air enters the air inlet chamber 8, and then the air in the air inlet chamber 8 is drawn into the heat dissipation air duct 11 to dissipate heat from the first heating element 6. Then, the air in the heat dissipation air duct 11 flows into the first air duct component 5 to dissipate heat from the second heating element 7, and then the air flows into the air outlet chamber 10 and is discharged to the outside. This embodiment of the application dissipates and cools the first heating element 6 and the second heating element 7 by air cooling. Compared with the water cooling in the prior art, the structure is simpler, there is no need to design a separate water cooling system, and there is no need to equip a chiller, which greatly reduces manufacturing and use costs.

[0069] In this embodiment, both the upper partition 2 and the lower partition 3 can be assembled from several plates; the mounting chamber 9 is used to install various electrical components, and the heat generated by the electrical components installed in the mounting chamber 9 is small and can be ignored.

[0070] In this embodiment, the first exhaust device 4, the first heating element 6, and the first air duct component 5 are arranged sequentially from top to bottom. The upper end of the heat dissipation air duct 11 is connected to the first exhaust device 4, and the lower end of the heat dissipation air duct 11 is connected to the upper end of the first air duct component 5.

[0071] like Figure 1 , 3 As shown in Figures 4 and 5, the first exhaust device 4 may include a first fan 12 and a first exhaust hood 13; wherein,

[0072] The first heating element 6 is installed below the first exhaust hood 13;

[0073] The first exhaust hood 13 is connected to the upper partition plate 2. The bottom of the first exhaust hood 13 is provided with an exhaust port 14 corresponding to the first heating component 6. The exhaust port 14 is aligned and connected with the heat dissipation air duct 11 in the corresponding first heating component 6.

[0074] The first fan 12 is installed in the first exhaust hood 13. The air inlet of the first fan 12 is connected to the air inlet chamber 8 so that the first fan 12 draws the air in the air inlet chamber 8 into the first exhaust hood 13 and the air in the first exhaust hood 13 flows into the heat dissipation duct 11 through the exhaust port 14. Specifically, the first fan 12 can be controlled by speed regulation. The control device has a built-in speed regulation fan board to regulate the speed of the first fan 12 by VSP. The first fan 12 is equipped with VSP and PWM speed regulation ports.

[0075] like Figures 1-4 As shown, at least two first heating elements 6 are arranged side by side, and the exhaust vents 14 correspond one-to-one with the first heating elements 6 and are aligned and connected with the heat dissipation ducts 11 in the corresponding first heating elements 6.

[0076] A bushing 15 corresponding to the first heating element 6 is provided between the first exhaust hood 13 and the first heating element 6;

[0077] The bushing 15 includes a vertical bushing wall 16 and a horizontal bushing wall 17;

[0078] The transverse sleeve 17 is connected to the upper end of the vertical sleeve 16 and extends outward;

[0079] The vertical sleeve 16 extends into the heat dissipation duct 11 of the corresponding first heating element 6. The horizontal sleeve 17 is located between the bottom of the first exhaust hood 13 and the top of the corresponding first heating element 6. Sealing strips are provided between the horizontal sleeve 17 and the bottom of the first exhaust hood 13, and between the horizontal sleeve 17 and the top of the corresponding first heating element 6. Specifically, when the first exhaust device 4 draws air, it will draw some rainwater into the air inlet chamber 8. Then, the rainwater will pass through the first exhaust hood 13 and enter the heat dissipation duct 11 through the exhaust port 14. By setting the bushing 15, rainwater can be prevented from splashing into the gap between the first exhaust hood 13 and the first heating element 6 when passing through the exhaust port 14. In this embodiment, the bushing 15 corresponds one-to-one with the first heating element 6.

[0080] like Figure 4 As shown, the air-cooled converter cabinet may also include a first drain pipe 18;

[0081] The lower end of the first exhaust hood 13 is provided with a first drain hole;

[0082] The upper end of the first drain pipe 18 is connected to the first drain hole, and the lower end of the first drain pipe 18 extends into the air outlet chamber 10. In this embodiment, the first drain hole is located on the bottom wall 27 of the first exhaust hood 13. After some rainwater is sucked into the first exhaust hood 13, it will accumulate in the first exhaust hood 13. The rainwater accumulated in the first exhaust hood 13 can flow out from the first drain hole and be discharged into the air outlet chamber 10 along the first drain pipe 18.

[0083] like Figure 1 , 3 As shown, a support plate 19 can be installed in the cabinet 1;

[0084] The lower end of the first heating element 6 is connected to the support plate 19;

[0085] The upper end of the first air duct component 5 is connected to the support plate 19;

[0086] The support plate 19 is provided with ventilation holes, and the lower end of the heat dissipation air duct 11 in the first heating component 6 is connected to the upper end of the first air duct component 5 through the ventilation holes; specifically, the ventilation holes correspond one-to-one with the first heating component 6.

[0087] The lower end of the first air duct component 5 is connected to the lower partition 3. The lower partition 3 has a communication port, and the lower end of the first air duct component 5 is connected to the air outlet chamber 10 through the communication port. A first filter screen 20 covering the communication port is connected to the lower partition 3. Specifically, the cabinet 1 is provided with at least one air outlet communicating with the air outlet chamber 10. The cabinet 1 is also connected with a second filter screen 21 corresponding to and covering the corresponding air outlet. In this embodiment, the air outlets are provided on all four sides of the cabinet 1. The second filter screen 21 corresponds to each air outlet. The second filter screen 21 is used to prevent sand and dust from entering the air outlet chamber 10, and the first filter screen 20 is used to prevent sand and dust in the air outlet chamber 10 from entering the first air duct component 5.

[0088] like Figure 1 , 3 As shown in Figures 5-7, the cabinet 1 is provided with at least one air inlet communicating with the air inlet chamber 8. An air inlet assembly 22 is installed in the air inlet. The air inlet assembly 22, for example but not limited to the following structure, includes an outer frame 23, an air guide shroud 24, an air guide filter 25, and at least two louvers 26; wherein,

[0089] The outer frame 23 is connected to the cabinet 1;

[0090] The bottom wall 27, left side wall 28 and right side wall 29 of the air guide cover 24 are all connected to the outer frame 23, and the air guide cover 24 is located in the corresponding air inlet;

[0091] The outer frame 23 is provided with a first air inlet 30 that communicates with the air guide cover 24, and the upper end of the air guide cover 24 is provided with a second air inlet 31 that communicates with the air inlet chamber 8, so that air passes through the first air inlet 30 into the air guide cover 24 and then through the second air inlet 31 into the air inlet chamber 8.

[0092] The air guide filter 25 is connected to the outer frame 23 and covers the first air outlet 30;

[0093] The louvers 26 are arranged sequentially from top to bottom in the air guide cover 24, and the louvers 26 are inclined from bottom to top toward the first air outlet 30; in this embodiment, the cabinet 1 is provided with air inlets on all four sides, and each air inlet is equipped with an air inlet assembly 22.

[0094] like Figure 1 , 3As shown in Figures 5 to 7, a rain cover 32 corresponding to the air inlet and covering the outside of the corresponding air inlet is connected to the cabinet 1. The lower end of the rain cover 32 is provided with a downward-facing third air inlet 33, and an air inlet filter 34 is installed in the third air inlet 33.

[0095] The bottom wall 27 of the air guide cover 24 is inclined, and the end of the bottom wall 27 of the air guide cover 24 near the first air vent 30 is lower than the end away from the first air vent 30. Specifically, outside air first passes through the third air vent 33 and enters the inside of the rain cover 32. Then the air passes through the first air vent 30 and enters the air guide cover 24. Then it passes through the second air vent 31 and enters the air inlet chamber 8. The air inlet filter 34 and the air guide filter 25 are used to filter sand and dust in the air.

[0096] like Figure 3 , 4 As shown in Figure 8, the air-cooled converter cabinet may further include a second air duct component 35, a third air duct component 36, a second exhaust device 37, a third exhaust device 38, a third heating component 39, and a heat exchanger 40; wherein,

[0097] The cabinet 1 is provided with an exhaust port 41, and an exhaust filter screen is installed in the exhaust port 41;

[0098] The heat exchanger 40 is installed in the mounting chamber 9, and the heat exchanger 40 has a first fluid channel and a second fluid channel;

[0099] The second air duct component 35 is installed in the mounting chamber 9. The lower end of the second air duct component 35 is used to communicate with the inlet of the first fluid channel in the heat exchanger 40. The outlet of the first fluid channel is communicated with the exhaust port 41.

[0100] The second exhaust device 37 is connected to the upper partition plate 2. The second exhaust device 37 is connected to the upper end of the second air duct component 35 and is used to draw air from the air inlet chamber 8 into the second air duct component 35. Then, the air in the second air duct component 35 flows through the first fluid channel and is discharged from the exhaust port 41.

[0101] The third heating element 39 is installed in the mounting chamber 9, and the third heating element 39 is connected to the second air duct component 35 so that the heat in the third heating element 39 is carried away when the air flows through the second air duct component 35.

[0102] The third air duct component 36 is installed in the mounting chamber 9. One end of the third air duct component 36 is used to communicate with the outlet of the second fluid channel in the heat exchanger 40, and the other end of the third air duct component 36 is connected to the bottom of the third heating component 39.

[0103] The third exhaust device 38 is installed in the mounting chamber 9. The third exhaust device 38 is connected to the inlet of the second fluid channel in the heat exchanger 40 and is used to draw air from the mounting chamber 9 into the second fluid channel. Then, the air in the second fluid channel flows through the third air duct component 36 and is blown into the bottom of the third heating component 39.

[0104] Specifically, under the suction action of the second exhaust device 37, outside air flows into the air inlet chamber 8, and the air in the air inlet chamber 8 is drawn into the second air duct component 35. Then, the air in the second air duct component 35 flows into the first fluid channel and is discharged from the exhaust port 41. When the air flows through the second air duct component 35, it carries away the heat from the third heating element 39, thereby cooling the third heating element 39. Furthermore, the third exhaust device 38 draws air from the mounting chamber 9 into the second fluid channel, and then the air in the second fluid channel flows through the third air duct component 36 and is blown into the bottom of the third heating element 39 to dissipate heat. This embodiment of the application dissipates heat from the third heating element 39 through air cooling, which is simpler in structure and significantly reduces manufacturing costs compared to water cooling in the prior art.

[0105] More specifically, when the air flows through the second air duct component 35, it carries away the heat from the third heating component 39 and then flows into the first fluid channel. At this time, the air temperature in the first fluid channel is still lower than the air temperature in the second fluid channel. Therefore, in the heat exchanger 40, the air in the second fluid channel exchanges heat with the air in the first fluid channel, so that the air temperature in the second fluid channel is reduced before flowing into the third air duct component 36, and then blowing into the bottom of the third heating component 39 to dissipate heat from the third heating component.

[0106] More specifically, a small amount of sand and dust from the outside will still be drawn into the air intake chamber 8. Some of the sand and dust will be drawn in by the first exhaust device 4, pass through the heat dissipation duct 11 and the first duct component 5, and then be discharged into the air outlet chamber 10. Another portion of the sand and dust will be drawn in by the second exhaust device 37, pass through the second duct component 35 and the first fluid channel, and then be discharged from the exhaust port 41. Therefore, sand and dust will not enter the installation chamber 9, and thus the electrical components in the installation chamber 9 will not be affected by sand and dust, improving the sand-proof performance.

[0107] like Figure 3 , 4 As shown, the air inlet chamber 8 is provided with a baffle plate 42 connected to the upper partition plate 2 and located between the first exhaust device 4 and the second exhaust device 37. The baffle plate 42 can prevent the first exhaust device 4 and the second exhaust device 37 from competing for air.

[0108] In this embodiment, the second exhaust device 37 includes a second fan 54 and a second exhaust hood 55. The second exhaust hood 55 is connected to the upper partition 2 and communicates with the upper end of the second air duct component 35. The second fan 54 is installed in the second exhaust hood 55, and the air inlet of the second fan 54 communicates with the air inlet chamber 8 so that the second fan 54 draws the air in the air inlet chamber 8 into the second exhaust hood 55, thereby causing the air in the second exhaust hood 55 to flow into the second air duct component 35.

[0109] like Figure 3 , 4 As shown, the air-cooled converter cabinet may also include a second drain pipe 43;

[0110] The upper partition 2 is provided with a second drainage hole;

[0111] The upper end of the second drain pipe 43 is connected to the second drain hole, and the lower end of the second drain pipe 43 is connected to the second air duct component 35. Specifically, after rainwater is drawn into the air inlet chamber 8, it partially accumulates in the air inlet chamber 8. The rainwater accumulated in the air inlet chamber 8 flows out from the second drain hole and along the second drain pipe 43 to the second air duct component 35, then flows from the second air duct component 35 into the first fluid channel and then is discharged from the exhaust port 41. More specifically, by setting the first drain pipe 18 and the second drain pipe 43, the rainproof and drainage performance of the air-cooled converter cabinet of this application embodiment can be improved, playing a role in safety protection.

[0112] like Figure 3 , 4As shown in Figures 8 and 9, the cabinet body 1 includes a cabinet door 44, and the exhaust port 41 is provided on the cabinet door 44.

[0113] The cabinet door 44 is connected to a mounting cover 45, and the heat exchanger 40 is installed in the mounting cover 45. When the cabinet door 44 is closed, the mounting cover 45 and the heat exchanger 40 are located in the mounting chamber 9.

[0114] The mounting cover 45 is provided with a first cavity 46 communicating with the inlet of the first fluid channel and a second cavity 47 communicating with the outlet of the second fluid channel.

[0115] The mounting cover 45 is also provided with a first pair of interfaces 48 communicating with the first cover cavity 46 and a second pair of interfaces 49 communicating with the second cover cavity 47. When the cabinet door 44 is closed, the first pair of interfaces 48 are aligned and communicated with the lower end of the second air duct component 35 and the second pair of interfaces 49 are aligned and communicated with one end of the third air duct component 36, thereby allowing the lower end of the second air duct component 35 to communicate with the inlet of the first fluid channel through the first cover cavity 46 and the third air duct component 36 to communicate with the outlet of the second fluid channel through the second cover cavity 47.

[0116] The third exhaust device 38 includes a third fan 50 and a third exhaust hood 51. The third exhaust hood 51 is connected to the cabinet door 44 and communicates with the mounting cover. The inlet of the second fluid channel in the heat exchanger 40 is connected to the third exhaust hood 51.

[0117] The third fan 50 is installed in the third exhaust hood 51 so that the third fan 50 draws the air in the installation chamber 9 into the third exhaust hood 51. Then the air in the third exhaust hood 51 flows sequentially through the second fluid channel, the second hood cavity 47 and the third air duct component 36 before flowing into the bottom of the third heating component 39.

[0118] Specifically, the lower end of the second air duct component 35 has a connecting pipe portion 52, which is part of the second air duct component 35. The first interface 48 is used to align and connect with the connecting pipe portion 52, and the lower end of the second drain pipe 43 is connected to the connecting pipe portion 52.

[0119] In this embodiment, the heat exchanger 40 can be a counter-current heat exchanger, and the top of the cabinet 1 is provided with an upwardly protruding rib 53 to prevent rainwater from accumulating on the top of the cabinet 1.

[0120] In this embodiment, the first heating component 6 can be a power module, the second heating component 7 can be a reactor, and the third heating component 39 can be a capacitor module.

[0121] In summary, under the suction effect of the first exhaust device 4, outside air enters the air inlet chamber 8, and then the air in the air inlet chamber 8 is drawn into the heat dissipation duct 11 to dissipate heat from the first heat-generating component 6. Then, the air in the heat dissipation duct 11 flows into the first air duct component 5 to dissipate heat from the second heat-generating component 7. Finally, the air flows into the air outlet chamber 10 and is discharged to the outside. This embodiment of the application uses air cooling to dissipate heat from the first heat-generating component 6 and the second heat-generating component 7. Compared with the water cooling method in the prior art, the structure is simpler, eliminating the need for a separate water cooling system and a chiller, thus greatly reducing manufacturing and usage costs.

[0122] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A type of air-cooled converter cabinet, characterized in that, It includes a cabinet (1), an upper partition (2), a lower partition (3), a first exhaust device (4), a first air duct component (5), a first heating component (6), and a second heating component (7); The upper partition (2) and the lower partition (3) are both installed inside the cabinet (1). The upper partition (2) and the lower partition (3) are separated in the cabinet (1) to form an air inlet chamber (8) above the upper partition (2) for accessing outside air, an installation chamber (9) between the upper partition (2) and the lower partition (3), and an air outlet chamber (10) below the lower partition (3) for discharging air to the outside. The first heating element (6) is installed in the mounting chamber (9). The first heating element (6) has a heat dissipation duct (11). The first duct component (5) is installed in the mounting chamber (9). The upper end of the first duct component (5) is connected to the heat dissipation duct (11) in the first heating element (6). The lower end of the first duct component (5) is connected to the air outlet chamber (10). The first exhaust device (4) is connected to the upper partition (2). The first exhaust device (4) is connected to the heat dissipation duct (11) in the first heating component (6) and is used to draw the air in the air inlet chamber (8) into the heat dissipation duct (11). Then the air in the heat dissipation duct (11) flows through the first duct component (5) and enters the air outlet chamber (10) and is discharged outward. The second heating element (7) is installed in the first air duct component (5); The first exhaust device (4) includes a first fan (12) and a first exhaust hood (13). The first heating element (6) is installed below the first exhaust hood (13). The first exhaust hood (13) is connected to the upper partition (2). The bottom of the first exhaust hood (13) is provided with an exhaust port (14) corresponding to the first heating element (6). The exhaust port (14) is aligned and connected with the heat dissipation duct (11) in the corresponding first heating element (6). The first fan (12) is installed in the first exhaust hood (13). The air intake of the first fan (12) is connected to the air inlet chamber (8) so that the first fan (12) draws the air in the air inlet chamber (8) into the first exhaust hood (13) and makes the air in the first exhaust hood (13) flow into the heat dissipation duct (11) through the exhaust port (14). Among them, at least two first heating elements (6) are arranged side by side, and the exhaust port (14) corresponds one-to-one with the first heating element (6) and is aligned and connected with the heat dissipation air duct (11) in the corresponding first heating element (6). A bushing (15) corresponding to the first heating element (6) is provided between the first exhaust hood (13) and the first heating element (6). The bushing (15) includes a vertical sleeve wall (16) and a horizontal sleeve wall (17). The horizontal sleeve wall (17) is connected to the upper end of the vertical sleeve wall (16) and extends outward. The vertical sleeve wall (16) extends into the heat dissipation air duct (11) in the corresponding first heating element (6). The horizontal sleeve wall (17) is located between the bottom of the first exhaust hood (13) and the top of the corresponding first heating element (6). Sealing strips are provided between the horizontal sleeve wall (17) and the bottom of the first exhaust hood (13) and between the horizontal sleeve wall (17) and the top of the corresponding first heating element (6). It also includes a first drain pipe (18), the lower end of the first exhaust hood (13) is provided with a first drain hole, the upper end of the first drain pipe (18) is connected to the first drain hole, and the lower end of the first drain pipe (18) extends into the air outlet chamber (10). It also includes a second air duct component (35), a third air duct component (36), a second exhaust device (37), a third exhaust device (38), a third heating component (39), and a heat exchanger (40). The cabinet (1) is provided with an exhaust port (41), and an exhaust filter screen is installed in the exhaust port (41); The heat exchanger (40) is installed in the mounting chamber (9), and the heat exchanger (40) has a first fluid passage and a second fluid passage; The second air duct component (35) is installed in the mounting chamber (9), and the lower end of the second air duct component (35) is used to communicate with the inlet of the first fluid channel in the heat exchanger (40), and the outlet of the first fluid channel is communicated with the exhaust port (41); The second exhaust device (37) is connected to the upper partition (2). The second exhaust device (37) is connected to the upper end of the second air duct component (35) and is used to draw air from the air inlet chamber (8) into the second air duct component (35). Then, the air in the second air duct component (35) flows through the first fluid channel and is discharged from the exhaust port (41). The third heating element (39) is installed in the mounting chamber (9), and the third heating element (39) is connected to the second air duct component (35) so that the heat in the third heating element (39) is carried away when the air flows through the second air duct component (35); The third air duct component (36) is installed in the mounting chamber (9), one end of the third air duct component (36) is used to communicate with the outlet of the second fluid channel in the heat exchanger (40), and the other end of the third air duct component (36) is connected to the bottom of the third heating component (39); The third exhaust device (38) is installed in the mounting chamber (9). The third exhaust device (38) is connected to the inlet of the second fluid channel in the heat exchanger (40) and is used to draw air from the mounting chamber (9) into the second fluid channel. Then, the air in the second fluid channel flows through the third air duct component (36) and is blown into the bottom of the third heating component (39). The system also includes a second drain pipe (43), on which a second drain hole is provided on the upper partition (2). The upper end of the second drain pipe (43) is connected to the second drain hole, and the lower end of the second drain pipe (43) is connected to the second air duct component (35).

2. The air-cooled converter cabinet according to claim 1, characterized in that, A support plate (19) is installed in the cabinet (1); The lower end of the first heating element (6) is connected to the support plate (19); The upper end of the first air duct component (5) is connected to the support plate (19); The support plate (19) is provided with ventilation holes, and the lower end of the heat dissipation air duct (11) in the first heating component (6) is connected to the upper end of the first air duct component (5) through the ventilation holes; The lower end of the first air duct component (5) is connected to the lower partition (3), and the lower partition (3) is provided with a communication port. The lower end of the first air duct component (5) is connected to the air outlet chamber (10) through the communication port. A first filter screen (20) covering the communication port is connected to the lower partition (3).

3. The air-cooled converter cabinet according to claim 1, characterized in that, The cabinet (1) is provided with at least one air inlet communicating with the air inlet chamber (8), and an air inlet assembly (22) is installed in the air inlet. The air inlet assembly (22) includes an outer frame (23), an air guide cover (24), an air guide filter (25), and at least two louvers (26); wherein, The outer frame (23) is connected to the cabinet (1); The bottom wall (27), left side wall (28) and right side wall (29) of the air guide cover (24) are all connected to the outer frame (23), and the air guide cover (24) is located in the corresponding air inlet; The outer frame (23) is provided with a first air vent (30) communicating with the air guide cover (24), and the upper end of the air guide cover (24) is provided with a second air vent (31) communicating with the air inlet chamber (8). The air guide filter (25) is connected to the outer frame (23) and covers the first air outlet (30); The louvers (26) are arranged sequentially from top to bottom in the air guide cover (24), and the louvers (26) are inclined from bottom to top toward the first air outlet (30).

4. The air-cooled converter cabinet according to claim 3, characterized in that, The cabinet (1) is connected to a rain cover (32) that corresponds to the air inlet and covers the outside of the corresponding air inlet. The lower end of the rain cover (32) is provided with a downward-facing third air inlet (33), and an air inlet filter (34) is installed in the third air inlet (33). And / or the bottom wall (27) of the air guide cover (24) is inclined, and the end of the bottom wall (27) of the air guide cover (24) near the first air outlet (30) is lower than the end away from the first air outlet (30).

5. The air-cooled converter cabinet according to claim 1, characterized in that, The air inlet chamber (8) is provided with a baffle plate (42) connected to the upper partition plate (2) and located between the first exhaust device (4) and the second exhaust device (37).

6. The air-cooled converter cabinet according to claim 1, characterized in that, The cabinet (1) includes a cabinet door (44), and the exhaust port (41) is provided on the cabinet door (44); The cabinet door (44) is connected to an installation cover (45), and the heat exchanger (40) is installed in the installation cover (45). When the cabinet door (44) is closed, the installation cover (45) and the heat exchanger (40) are located in the installation chamber (9). The mounting cover (45) is provided with a first cover cavity (46) communicating with the inlet of the first fluid channel and a second cover cavity (47) communicating with the outlet of the second fluid channel. The mounting cover (45) is also provided with a first pair of interfaces (48) communicating with the first cover cavity (46) and a second pair of interfaces (49) communicating with the second cover cavity (47). When the cabinet door (44) is closed, the first pair of interfaces (48) is aligned and connected with the lower end of the second air duct component (35), and the second pair of interfaces (49) is aligned and connected with one end of the third air duct component (36). The third exhaust device (38) includes a third fan (50) and a third exhaust hood (51). The third exhaust hood (51) is connected to the cabinet door (44) and communicates with the mounting cover. The inlet of the second fluid channel in the heat exchanger (40) is communicated with the third exhaust hood (51). The third fan (50) is installed in the third exhaust hood (51).

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