Grid-connected cabinet and wind power converter

Abstract

According to the scheme, the grid-connected cabinet comprises a wiring area, a water pan and a switch assembly area which are sequentially arranged in the vertical direction, and the water pan is provided with a lead row electrically connected with the wiring area and the switch assembly area; and the projections of the cables in the wiring area in the vertical direction are all in the water pan. According to the grid-connected cabinet, the water receiving disc is arranged between the wiring area and the switch assembly area, so that even if leakage occurs in the wiring area, liquid can flow into the water receiving disc along the cable, the liquid is effectively prevented from entering the switch assembly area, the arc discharge phenomenon caused by leakage of the grid-connected cabinet is reduced, and the service life of the grid-connected cabinet is prolonged. Therefore, the safety performance of the grid-connected cabinet is improved.

Description

Technical Field

[0001] This application relates to the technical field of wind power converters, and particularly to a grid connection cabinet and a wind power converter. Background Art

[0002] Currently, wind power converters are generally installed inside the tower barrel at the tower base. Cables enter the grid connection cabinet along the top of the tower barrel. However, liquid leakage often occurs inside the tower barrel, and the liquid easily seeps into the grid connection cabinet along the cables, causing arc discharge inside the grid connection cabinet and even burning out the grid connection cabinet, resulting in large economic losses.

[0003] Therefore, how to improve the safety performance of the grid connection cabinet has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Utility Model

[0004] This application proposes a grid connection cabinet and a wind power converter to improve the safety performance of the grid connection cabinet.

[0005] To achieve the above object, this application discloses the following technical solutions:

[0006] In a first aspect, this application provides a grid connection cabinet, which includes a wiring area, a water receiving tray, and a switch component area arranged in sequence from top to bottom. The water receiving tray is provided with lead bars connecting the wiring area and the switch component area; the projections of the cables in the wiring area in the vertical direction are all within the water receiving tray.

[0007] In some embodiments, a drain port is provided on the water receiving tray to drain the accumulated water in the water receiving tray.

[0008] In some embodiments, a drain pipe is installed at the drain port.

[0009] In some embodiments, the water receiving tray includes a water receiving bottom plate and water receiving side plates. The water receiving side plates surround the water receiving bottom plate to form a water receiving cavity; at least one installation hole is provided on the water receiving bottom plate, and the installation hole is used for installing the lead bars.

[0010] In some embodiments, a water retaining edge protruding from the water receiving bottom plate is arranged around the installation hole.

[0011] In some embodiments, the water retaining edge is further provided with a splash-proof edge, and the splash-proof edge is arranged opposite to the water receiving bottom plate.

[0012] In some embodiments, a sealing plate is installed in the installation hole, the lead bar passes through the sealing plate, and the gap between the lead bar and the sealing plate is filled with sealant.

[0013] In some embodiments, the lead bar is connected to the wiring terminal of the cable through a first bus bar arranged horizontally.

[0014] In some embodiments, the switch assembly area is provided with a contactor, a circuit breaker and a second busbar, the contactor and the circuit breaker are electrically connected, one of the contactor and the circuit breaker is electrically connected to the second busbar, and the other of the two is electrically connected to the first busbar through a lead bus.

[0015] In some embodiments, the grid-connected cabinet also includes an air outlet and a fan arranged at the air outlet, the wiring area has a first air inlet, the switch component area has a second air inlet, and the water collection tray has a connecting port around it; when the fan is running, a first air flow is formed between the first air inlet, the connecting port and the air outlet, and a second air flow is formed between the second air inlet and the air outlet.

[0016] In some embodiments, the vertical projection of the cables in the connection area avoids the lead row.

[0017] In a second aspect, the present application provides a wind power converter, comprising a grid-connected cabinet as described in any one of the above items.

[0018] It can be seen from the above technical solution that a water collecting pan is provided between the wiring area and the switch assembly area in the above-mentioned grid-connected cabinet of the present application. Therefore, even if a leakage occurs in the wiring area, the liquid will flow along the cable into the water collecting pan, effectively preventing the liquid from entering the switch assembly area, reducing the occurrence of arc discharge due to leakage in the grid-connected cabinet, and thus improving the safety performance of the grid-connected cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the embodiments or prior art descriptions. Obviously, the drawings described below are only some examples or embodiments of the present application. For those of ordinary skill in the art, without paying any creative work, other drawings can be obtained based on the provided drawings, and the present application can also be applied to other similar scenarios based on the provided drawings. Unless it is obvious from the language context or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0020] Figure 1 A schematic diagram of a main view of a grid-connected cabinet provided in an embodiment of the present application;

[0021] Figure 2 A three-dimensional schematic diagram of a grid-connected cabinet provided in an embodiment of the present application;

[0022] Figure 3 A three-dimensional diagram of a water receiving tray of a grid-connected cabinet provided in an embodiment of the present application;

[0023] Figure 4 for Figure 3 A magnified schematic diagram of part A;

[0024] Figure 5 For Figure 3 the enlarged schematic view of part B in

[0025] Figure 6 the three - dimensional view of the water receiving tray of another grid - connected cabinet provided by the embodiment of the present application;

[0026] Figure 7 the side view schematic of a grid - connected cabinet provided by the embodiment of the present application;

[0027] Figures 8 to 13 the connection schematic of the switch component area provided by the embodiment of the present application;

[0028] In the figure: 10 - grid - connected cabinet; 10a - longitudinal beam; 10b - top plate; 10c - bottom plate; 10d - first air inlet; 10e - second air inlet; 10f - air outlet; 10g - communication port; 10h - baffle;

[0029] 100 - wiring area; 110 - gland; 120 - cable; 130 - terminal; 140 - first bus bar;

[0030] 200 - switch component area; 210 - contactor; 220 - circuit breaker; 230 - second bus bar;

[0031] 300 - water receiving tray; 310 - drain port; 320 - water receiving bottom plate; 330 - water receiving side plate; 340 - flanging; 350 - mounting hole; 360 - water retaining edge; 370 - splash - proof edge;

[0032] 400 - lead bus bar;

[0033] 500 - sealing plate;

[0034] 600 - fan. Detailed implementation manners

[0035] The present application will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related application, rather than limiting the application. The described embodiments are only a part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope protected by the present application.

[0036] In order to achieve the purpose of improving the safety performance of the grid - connected cabinet, the structure of the grid - connected cabinet is specifically introduced in the present application in combination with the drawings:

[0037] Refer to Figures 1 to 7 , in order to achieve the above - mentioned purpose, the present application discloses the following technical solutions:

[0038] The present application provides a grid-connected cabinet 10, which includes a wiring area 100, a water receiving tray 300, and a switch assembly area 200 arranged in sequence from top to bottom. The water receiving tray 300 is provided with a lead row 400 connected to the wiring area 100 and the switch assembly area 200; the projections of the cables 120 in the wiring area 100 in the vertical direction are all within the water receiving tray 300.

[0039] In the above grid-connected cabinet 10 of the present application, a water receiving tray 300 is arranged between the wiring area 100 and the switch assembly area 200. Thus, even when leakage occurs in the wiring area 100, the liquid will flow along the cable 120 into the water receiving tray 300, effectively preventing the liquid from entering the switch assembly area 200, reducing the occurrence of arc discharge phenomena in the grid-connected cabinet 10 due to leakage, and thereby improving the safety performance of the grid-connected cabinet 10.

[0040] In addition, the above water receiving tray 300 can also collect the falling of foreign objects such as bolts and gaskets during the wiring construction process, facilitate the search for foreign objects, and reduce faults such as short circuits caused by foreign objects falling into the interior of the grid-connected cabinet 10.

[0041] It should be noted that with the grid-connected cabinet 10 as a reference, there are a height direction, a width direction, and a length direction. The height direction corresponds to the height of the grid-connected cabinet 10, the width direction corresponds to the width of the grid-connected cabinet 10, the length direction corresponds to the length of the grid-connected cabinet 10, and the height direction, the width direction, and the length direction are perpendicular to each other in pairs. When the grid-connected cabinet 10 is in a normal use state, the height direction coincides with the vertical direction. In addition, the material of the above lead row 400 can be copper or aluminum.

[0042] The fact that the projections of the cables 120 in the wiring area 100 in the vertical direction are all within the water receiving tray 300 can be understood as follows: the cables 120 are generally located in the upper area of the water receiving tray 300, the cables 120 extend in the vertical direction, or the cables 120 are arranged obliquely so that water droplets can flow along the cable's path into the water receiving tray 300; since the lead row 400 is arranged at the water receiving tray 300 in the present application, for this reason, part of the projection of the cable 120 can also be on the lead row 400. For example, when the cable is arranged obliquely, although the upper projection of the cable is on the lead row 400, the water droplets can flow along the cable's path and will not fall on the lead row 400.

[0043] Furthermore, in order to further improve the safety performance, the projections of the cables 120 in the wiring area 100 in the vertical direction are all within the water receiving tray 300 and avoid the lead row 400.

[0044] The cabinet body of the grid-connected cabinet 10 generally includes longitudinal beams 10a, a top plate 10b, a bottom plate 10c and side plates. There are four longitudinal beams 10a, which are respectively supported at the four corners of the cabinet body. The side plates are connected to adjacent longitudinal beams 10a to form the sides of the cabinet body; the top plate 10b and the bottom plate 10c are oppositely arranged at both ends of the longitudinal beams 10a to form the top surface and the bottom surface of the cabinet body.

[0045] The grid-connected cabinet 10 is divided into a wiring area 100 and a switch component area 200 according to functions. Among them, the wiring area 100 is used to introduce the external cable 120 into the grid-connected cabinet 10 and achieve electrical connection with the cable 120.

[0046] As described in the background art, the cable 120 of the present application also adopts a top-introducing structure. This structure generally includes a gland 110, a cable 120 and a terminal 130. Among them, the gland 110 is installed on the top of the cabinet body. The cable 120 passes through the gland 110 and is connected to the first busbar 140 through the terminal 130 at its own end. The first busbar 140 extends horizontally and is connected to the lead bar 400. The above connection method enables the liquid introduced by the cable 120 to fall into the water receiving tray 300 along the cable 120 and the first busbar 140, while avoiding the lead bar 400, reducing the risk of liquid falling on the lead bar 400.

[0047] Among them, the number of the first busbars 140 is the same as the number of the lead bars 400. That is to say, one first busbar 140 is connected to one lead bar 400. The figure shows a case including three first busbars 140 and three lead bars 400. Some examples of the present application may also be other quantity cases, such as one first busbar 140 and one lead bar 400.

[0048] In addition, the terminal 130 can be directly connected to the side surface of the first busbar 140. One side surface of the first busbar 140 is used to connect the terminal 130, or both side surfaces of the first busbar 140 are used to connect the terminal 130. In the figure, terminal 130 is connected to both side doors of the first busbar 140, and six are connected to each side surface. Of course, it can also be other quantities and can be adjusted according to actual needs.

[0049] Since the liquid will collect in the water receiving tray 300, therefore, in order to further improve the safety performance of the grid-connected cabinet 10, in some examples of the present application, a drain port 310 is provided on the water receiving tray 300, and the accumulated water can be discharged from the water receiving tray 300 through the drain port 310. Further, a connector can be connected at the drain port 310, and the connector is externally connected to a drain pipe to discharge the accumulated water from the water receiving tray 300. The drain pipe can be a hard pipe or a flexible pipe.

[0050] The drain pipe can be led out from the side of the cabinet body to near the bottom of the cabinet body, or the drain pipe can be led out from the inside of the cabinet body to near the bottom of the cabinet body.

[0051] Combined with Figure 3 , refer to Figure 4 , in some examples of the present application, the water receiving tray 300 includes a water receiving bottom plate 320 and a water receiving side plate 330. The water receiving side plate 330 surrounds the water receiving bottom plate 320 to form a water receiving cavity; the water receiving bottom plate 320 is provided with a mounting hole 350 for mounting the lead row 400. The water receiving tray 300 is mounted on the longitudinal beam 10a through the opposite and adjacent water receiving side plates 330 to realize the connection of the water receiving tray 300 relative to the grid-connected cabinet 10. The water receiving tray 300 with the above structure can be installed on the cabinet body of the grid-connected cabinet 10 more quickly, improving the installation efficiency.

[0052] In addition, in order to enable most of the accumulated water to gather in the water receiving tray 300, part or all of the water receiving side plate 330 is provided with a flanging 340 to prevent water from flowing out.

[0053] Combined with Figure 3 , refer to Figure 5 , in order to further improve the water leakage prevention effect at the mounting hole 350, in some examples of the present application, a water retaining edge 360 protruding from the water receiving bottom plate 320 is arranged around the mounting hole 350. By setting the water retaining edge 360, the height of the mounting hole 350 relative to the bottom of the water receiving tray 300 can be raised. Therefore, the accumulated water is not easily leaked from the mounting hole 350 into the switch assembly area 200. Further, the water retaining edge 360 can also be provided with a splash-proof edge 370, and the splash-proof edge 370 is arranged opposite to the water receiving bottom plate 320. By setting the water retaining edge 360 and the splash-proof edge 370, the effect of preventing splashing can be achieved when the liquid drops.

[0054] It should be noted that the splash-proof edge 370 can be provided on part or all of the water retaining edge 360. In the figure, if the mounting hole 350 is a rectangular structure, the water retaining edge 360 encloses a rectangular structure, and the above-mentioned splash-proof edge 370 is arranged on two opposite water retaining edges 360 of the water retaining edge 360.

[0055] The number of the above-mentioned mounting holes 350 is one or more. In some embodiments, multiple lead rows 400 can pass through the same mounting hole 350, as Figure 3 shown, or multiple lead rows 400 pass through different mounting holes 350, as Figure 6 shown.

[0056] In some embodiments, a sealing plate 500 is installed in the mounting hole 350, the lead row 400 passes through the sealing plate 500, and the gap between the lead row 400 and the sealing plate 500 is filled with sealant. Additionally, in order to improve the connection strength between the sealing plate 500 and the mounting hole 350, the splash-proof edge 370 may also be provided with fastening holes for installing the sealing plate 500. The above describes the implementation manner in which the lead row 400 passes through the sealing plate 500. The sealing plate 500 can be made of high-temperature resistant insulating material, and the material of the water receiving tray 300 can be non-ferromagnetic materials such as stainless steel and aluminum alloy plates to prevent eddy current heating. It should be noted that the lead row 400 can also directly pass through the mounting hole 350, and sealant is filled between the mounting hole 350 and the lead row 400. At this time, the entire water receiving tray 300 can be processed from high-temperature resistant insulating material.

[0057] Combined with Figure 1 and Figure 2 , referring to Figures 7 to 12 , in the switch assembly area 200 of the example of the present application, a contactor 210, a circuit breaker 220, and a second wiring copper row 230 are provided. The contactor 210 and the circuit breaker 220 are electrically connected. One of the contactor 210 and the circuit breaker 220 is electrically connected to the second busbar 230, and the other of them is electrically connected to the first busbar 140 through the lead row 400. That is to say, in one connection method, the contactor 210 is above and the circuit breaker 220 is below, and in another arrangement method, it can also be that the circuit breaker 220 is above and the contactor 210 is below. After such combination, 6 arrangement methods are generated, as Figures 7 - 12 shown.

[0058] Figure 7 In the switch assembly area 200 in

[0059] Figure 8 , there is 1 contactor 210, 1 circuit breaker 220, and a second wiring copper row 230. The contactor 210 is electrically connected to the lead copper row 400 and the circuit breaker 220. The lead copper row 400 is connected to the terminal 130 through the first busbar 140; the circuit breaker 220 is electrically connected to the second wiring copper row 230.

[0059] Figure 8 The switch assembly area 200 shown in Figure 7 is different from the switch assembly area 200 shown in Figure 8 in that

[0060] Figure 9 the number of circuit breakers 220 shown in Figure 7 is 2, and the 2 circuit breakers 220 are arranged in parallel. The switch assembly area 200 shown in Figure 7 is different from the switch assembly area 200 shown in Figure 9 in that Figure 9 the number of contactors 210 shown is 2, and the 2 contactors 210 are arranged in parallel; the number of circuit breakers 220 is 2, and the 2 circuit breakers 220 are arranged in parallel.

[0061] Figure 10 The switch component area 200 in includes one contactor 210, one circuit breaker 220 and a second wiring copper bar 230. The circuit breaker 220 is electrically connected to the lead copper bar 400 and the contactor 210. The lead copper bar 400 is connected to the terminal 130 through the first bus bar 140; the contactor 210 is electrically connected to the second wiring copper bar 230.

[0062] Figure 11 The shown switch component area 200 and Figure 10 The shown switch component area 200 are different in that Figure 11 The number of contactors 210 shown is two, and the two contactors 210 are arranged in parallel; the number of circuit breakers 220 is one.

[0063] Figure 12 The shown switch component area 200 and Figure 10 The shown switch component area 200 are different in that Figure 12 The number of contactors 210 shown is two, and the two contactors 210 are arranged in parallel; the number of circuit breakers 220 is two, and the two circuit breakers 220 are arranged in parallel.

[0064] It can be seen from the above description that the grid connection cabinet of the present application is compatible with various combinations of contactors 210 and circuit breakers 220, can quickly form a series of versions, can meet various configuration requirements, thereby shortening the product development cycle. The layout is reasonable and the structure is compact. Compared with the traditional layout method, it can reduce the amount of copper bar used and has a lower cost.

[0065] Such as Figure 13 shown, Figure 13 In the shown grid connection cabinet, the switch component area 200 is provided with a contactor 210, a circuit breaker 220 and a second bus bar 230. Among them, the contactor 210 is respectively connected to the lead bar 400 and the circuit breaker 220, and the circuit breaker 220 is connected to the contactor 210 and the second bus bar 230. In order to improve the heat dissipation performance of the grid connection cabinet 10, the grid connection cabinet 10 further includes an air outlet 10f and a fan 600 arranged at the air outlet 10f. The wiring area 100 has a first air inlet 10d, the switch component area 200 has a second air inlet 10e, and the periphery of the water receiving tray 300 has a communication port 10g; when the fan 600 operates, a first air flow is formed between the first air inlet 10d, the communication port 10g and the air outlet 10f, and a second air flow is formed between the second air inlet 10e and the air outlet 10f. It should be noted that the fan 600 can be a centrifugal fan or an axial flow fan.

[0066] Further, in order to extend the effective heat exchange time of the air flow, in the examples of the present application, the air outlet 10f corresponds to the electronic components located above (contactor 210), the second air inlet 10e corresponds to the electronic components located above (second busbar 230), and the air outlet 10f is arranged opposite to both the first air inlet 10d and the second air inlet 10e.

[0067] To increase the heat dissipation effect, a baffle 10h can also be provided in the switch assembly area 200 to change the direction of the air flow.

[0068] The above baffle 10h can be arranged between the contactor 210 and the circuit breaker 220 to change the air flow direction, extend the contact time of the air flow with the circuit breaker 220, contactor 210, etc., so as to improve the heat dissipation performance of the circuit breaker 220 and the contactor 210. Of course Figure 13 The structure shown is only exemplary. The purpose of setting the baffle 10h in the present application is to extend the length of the air flow, so that the air flow can pass through most of the electronic components in all the switch assembly areas 200, improve its heat dissipation performance, and optimize the use performance.

[0069] The specific heat dissipation process is as follows: The fan 600 operates and a negative pressure area is formed at the air outlet 10f. Part of the cold air enters the cabinet from the first air inlet 10d, passes through the wiring area 100, enters the switch assembly area 200 through the communication port 10g around the water receiving tray 300, and then enters the fan 600. This is the first air flow; Part of the cold air enters the switch assembly area 200 through the second air inlet 10e and is then divided into three paths (three second air flows). One path passes through the second busbar 230, behind the circuit breaker 220, and is blocked by the baffle 10h behind the circuit breaker 220, then turns to the front of the contactor 210 and enters the fan 600 from the air outlet 10f; Another path passes in front of the circuit breaker 220, below the contactor 210 and enters the fan 600 from the air outlet 10f; The last path passes in front of the circuit breaker 220, in front of the contactor 210, above the contactor 210 and enters the fan 600 from the air outlet 10f; The above four air flows are all drawn out of the cabinet by the fan 600.

[0070] Since the formation of the above air flow can effectively increase the heat dissipation efficiency of the grid-connected cabinet 10, for this reason, the present application can reduce the number of fans 600. Only one fan is used in the illustration. Of course, it does not mean that there can only be one fan 600 in the present application, and there can also be two, three, four, etc. It can be adaptively adjusted according to specific heat dissipation requirements.

[0071] To prevent foreign objects from entering the interior of the grid-connected cabinet 10, louvers can also be provided at the first air inlet 10d and / or the second air inlet 10e.

[0072] This application provides a wind power converter, including a grid connection cabinet 10 as described in any of the above. Since the grid connection cabinet 10 has the above beneficial effects, the wind power converter including the grid connection cabinet 10 has corresponding effects, which will not be elaborated here.

[0073] Above, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0074] Among them, in the description of the embodiments of this application, unless otherwise specified, " / " means "or". For example, A / B may represent A or B; "and / or" herein is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone.

[0075] It should be noted that for the convenience of description, only parts related to the relevant application are shown in the drawings. Without conflict, the embodiments in this application and the features in the embodiments can be combined with each other.

[0076] The above description is only a preferred embodiment of this application and an explanation of the applied technical principles, and is not used to limit this application. For those skilled in the art, various changes and modifications can be made to this application. The scope of the application involved in this application is not limited to the technical solutions formed by the specific combination of the above technical features, but should also cover other technical solutions formed by the arbitrary combination of the above technical features or their equivalent features without departing from the above application concept. For example, the technical solutions formed by mutually replacing the above features with (but not limited to) technical features having similar functions disclosed in this application.

Claims

1. A grid-connected cabinet, characterized in that, It includes a wiring area, a water receiving tray and a switch assembly area arranged in sequence from top to bottom. The water receiving tray is provided with a lead row connected to the wiring area and the switch assembly area; the vertical projections of the cables in the wiring area are all within the water receiving tray.

2. The grid-connected cabinet according to claim 1, characterized in that, The water receiving tray is provided with a drain port to drain the accumulated water in the water receiving tray.

3. The grid connection cabinet according to claim 2, characterized in that, The drain outlet is equipped with a drain pipe.

4. The grid-connected cabinet according to any one of claims 1 to 3, characterized in that, The water receiving tray includes a water receiving bottom plate and a water receiving side plate, wherein the water receiving side plate surrounds the water receiving bottom plate to form a water receiving cavity; the water receiving bottom plate is provided with at least one mounting hole, and the mounting hole is used to mount the lead row.

5. The grid-connected cabinet according to claim 4, characterized in that, A water retaining edge protruding from the water receiving bottom plate is arranged around the installation hole.

6. The grid-connected cabinet according to claim 5, wherein, The water retaining edge is further provided with a splash-proof edge, and the splash-proof edge is arranged opposite to the water receiving bottom plate.

7. The grid-connected cabinet according to claim 4, wherein A sealing plate is installed in the mounting hole, the lead row passes through the sealing plate, and a gap between the lead row and the sealing plate is filled with sealant.

8. The grid-connected cabinet according to claim 7, characterized in that, The lead bar is connected to the connection terminal of the cable through a first bus bar arranged transversely.

9. The grid-connected cabinet according to claim 8, characterized in that, The switch assembly area is provided with a contactor, a circuit breaker and a second busbar, the contactor and the circuit breaker are electrically connected, one of the contactor and the circuit breaker is electrically connected to the second busbar, and the other of the contactor and the circuit breaker is electrically connected to the first busbar through the lead bus.

10. The grid-connected cabinet according to claim 1, characterized in that, The grid-connected cabinet also includes an air outlet and a fan arranged at the air outlet, the wiring area has a first air inlet, the switch component area has a second air inlet, and the water receiving tray has a connecting port around it; when the fan is running, a first air flow is formed between the first air inlet, the connecting port and the air outlet, and a second air flow is formed between the second air inlet and the air outlet.

11. The grid-connected cabinet according to claim 1, characterized in that, The projection of the cables in the connection area in the vertical direction avoids the lead row.

12. A wind power converter, characterized in that, The utility model comprises the power connection cabinet according to any one of claims 1 to 11.

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