A high voltage switchgear for wind power

Abstract

The application discloses a high-voltage switch device for wind power generation and relates to the field of high-voltage switch devices, which comprises a mounting support frame, two porcelain bottles are mounted on the bottom side of the mounting support frame, and a brake shoe and a plug-in contact are respectively mounted on the two porcelain bottles. It should be noted that in the application, when closing, the two windshields are shielded to avoid the problem of generating a large amount of arc during closing; in rainy and snowy weather, the porcelain bottles are closed by the two windshields being close to each other, thereby effectively avoiding the problem that humid air causes rust on the brake shoe and the plug-in contact, and the brake shoe and the plug-in contact can be automatically lubricated, the lubricated part can be closed, the problem that the lubricated brake shoe and plug-in contact are rained on or covered with snow to cause the lubricating liquid to deteriorate and the lubricating liquid to fail can be effectively avoided, and in addition, when a fire failure occurs, the two windshields are folded, and the fire extinguishing sand is continuously accumulated in the two windshields to realize the function of physical fire extinguishing.

Description

Technical Field

[0001] This invention relates to the field of high-voltage switchgear technology, and more particularly to a high-voltage switchgear for wind power generation. Background Technology

[0002] Wind power generation refers to the conversion of wind kinetic energy into mechanical kinetic energy, and then into electrical kinetic energy. It involves a wind turbine rotating under the influence of wind, converting the wind's kinetic energy into the mechanical energy of the turbine shaft, and a generator rotating under the drive of the turbine shaft to generate electricity. This is an important form of wind energy utilization. High-voltage disconnect switches are essential equipment in the transmission of wind power. They are crucial switching devices in the electrical systems of power plants and substations and must be used in conjunction with high-voltage circuit breakers.

[0003] However, high-voltage disconnect switches require opening and closing operations during use. Since high-voltage disconnect switches are always in a directly exposed state, especially in rainy or snowy weather, the structure of the disconnect switch is directly eroded and impacted by rain and snow, causing problems such as corrosion and deformation. This leads to mechanical problems such as difficulty in opening and closing. Furthermore, when closing, since there is no obstruction between the disconnect switches, arc pollution is easily generated, which can cause problems such as the switch burning out. Summary of the Invention

[0004] The purpose of this invention is to provide a high-voltage switchgear for wind power generation to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A high-voltage switchgear for wind power generation includes a mounting support frame, on the bottom side of which two porcelain insulators are mounted. A knife switch and a plug contact are respectively mounted on the two porcelain insulators. The knife switch is inserted into the plug contact, and a cable is mounted on both the knife switch and the plug contact.

[0007] It also includes a windproof lubrication device, which is mounted on the mounting support frame. The windproof lubrication device is used to shield the switch and lubricate the switch and the plug contact. The windproof lubrication device includes two windproof covers, which are slidably mounted on both sides of the mounting support frame. The switch and the plug contact are located inside the two windproof covers. Each of the two windproof covers is equipped with an auxiliary lubrication box, which is filled with lubricating fluid. Multiple spray nozzles are installed on the side of the two auxiliary lubrication boxes that are close to each other. The multiple spray nozzles are used to spray the lubricating fluid in the auxiliary lubrication box onto the switch and the plug contact.

[0008] The windshield lubrication device is equipped with an automatic opening and closing device for automatically opening and closing the windshield lubrication device. The automatic opening and closing device includes two extrusion push plates, which are movably installed in the two auxiliary lubrication boxes respectively. The extrusion push plates are used to expel the lubricating liquid in the auxiliary lubrication boxes. An integrated baffle is movably installed on the side of the two auxiliary lubrication boxes that are close to each other. Multiple spray heads located on the same side are located in one integrated baffle. The integrated baffle moves up to expose the multiple spray heads.

[0009] Furthermore, in a preferred embodiment of the present invention, the windshield lubrication device further includes two reciprocating pushers, the two windshields are respectively mounted on the two reciprocating pushers, and the two reciprocating pushers are respectively slidably mounted on both sides of the mounting support frame;

[0010] Two return springs are installed on one side of the reciprocating push frame, and the other ends of the two return springs are installed on the inner wall of the mounting support frame.

[0011] Furthermore, in a preferred embodiment of the present invention, an integrated support is installed on the top side of the mounting support frame, a drive sleeve is rotatably installed on the integrated support, a rotating push-pull frame is rotatably installed on the drive sleeve, and two push-pull shafts are rotatably installed on the rotating push-pull frame, with the two push-pull shafts respectively movably installed on the two reciprocating push frames.

[0012] The integrated support is equipped with two limiting bars, and the rotating push-pull bracket slides vertically on the two limiting bars.

[0013] Furthermore, in a preferred embodiment of the present invention, a lower pressure frame is movably installed inside the integrated support, a load box is installed on the top side of the lower pressure frame, and a support spring is installed between the integrated support and the lower pressure frame;

[0014] The surface of the drive sleeve is provided with an arc-shaped synchronous rotating groove, and a U-shaped frame is installed on the lower pressure frame, with one end of the U-shaped frame extending into the synchronous rotating groove;

[0015] A synchronization ring is installed on the inner wall of the drive sleeve, and the synchronization ring is rotatably mounted on the integrated support.

[0016] Furthermore, in a preferred embodiment of the present invention, the automatic opening and closing device further includes two opening and closing push frames, which are movably installed in the two auxiliary lubrication boxes respectively. The two integrated baffles are respectively installed on the two opening and closing push frames, and a pull-down spring is installed on the opening and closing push frame. The pull-down spring is installed on the auxiliary lubrication box.

[0017] Each of the two opening and closing pushers is equipped with a push rod on one side, and each of the two wind deflectors is equipped with an arc-shaped opening and closing frame. The two wind deflectors move closer to each other, causing the two arc-shaped opening and closing frames to press against the two push rods, thereby driving the integrated baffle to move.

[0018] Furthermore, in a preferred embodiment of the present invention, two upward extrusion frames are installed on the bottom side of the extrusion pusher plate, and an extrusion spring is installed between the upward extrusion frame and the auxiliary lubrication box.

[0019] Furthermore, in a preferred embodiment of the present invention, an auxiliary fire extinguishing device is also included. The auxiliary fire extinguishing device is installed on the windproof lubrication device and is used to actively extinguish the fire on the switch and the plug contact.

[0020] Furthermore, in a preferred embodiment of the present invention, the auxiliary fire extinguishing device further includes two fire extinguishing boxes, which are respectively installed on the two windshields;

[0021] Both of the wind deflectors have a spring-loaded rotating plate movably installed on their inner walls. Each spring-loaded rotating plate has an adsorption magnet on both sides. The spring-loaded rotating plate is adsorbed onto the wind deflector by the two adsorption magnets to seal the fire extinguishing box.

[0022] Furthermore, in a preferred embodiment of the present invention, two mounting seats are installed on the inner wall of the windshield, and a spring-loaded rotating shaft is installed on the two mounting seats. The spring-loaded rotating plate is rotatably mounted on the spring-loaded rotating shaft.

[0023] The spring-loaded rotating plate has an installation cavity, the spring-loaded rotating shaft is rotatably installed in the installation cavity, a spring-loaded torsion spring is installed on the inner wall of the installation cavity, and the other end of the spring-loaded torsion spring is installed on the spring-loaded rotating shaft.

[0024] Furthermore, in a preferred embodiment of the present invention, a separation pusher is movably mounted on one of the windshields, and the separation pusher moves upward to push the rotating push-pull frame upward;

[0025] An upper pusher is movably mounted on the separating pusher, a drive shaft is rotatably mounted on one side of the upper pusher, a drive frame is mounted on one side of the spring-opening rotating plate, and the drive shaft is movably mounted within the drive frame.

[0026] The beneficial effects of the high-voltage switchgear for wind power generation proposed in this invention are:

[0027] In this invention, by setting up a windproof lubrication device, when closing the circuit breaker, the two windproof covers can effectively prevent the generation of a large number of electric arcs during closing. In rainy or snowy weather, the two windproof covers are brought close together to seal the porcelain insulator, thereby effectively preventing the humid air from causing corrosion to the switch and the plug contact. In addition, through dual-mode protection in open and closed states, the open state prevents electric arc contamination, and the closed state prevents moisture, effectively protecting the safety of the high-voltage switch.

[0028] Furthermore, in this invention, by setting an automatic opening and closing device, when the two windshields are closed, the opening and closing pusher causes the integrated baffle to move. At this time, multiple spray heads are exposed, and under the pull force of the two extrusion springs, the two upward extrusion frames are pulled upward. The two upward extrusion frames drive the extrusion pusher plate to move upward, squeezing out the lubricating fluid in the auxiliary lubrication box, and spraying it onto the breaker and plug contact head through multiple spray heads to achieve automatic lubrication. It can also seal the lubrication part, which can effectively prevent the breaker and plug contact head from getting wet from rain or covered by snow after lubrication, causing the lubricating fluid to deteriorate and fail.

[0029] Furthermore, in this invention, by setting up an auxiliary fire extinguishing device, when a fire occurs, the temperature of the side wall of the windshield rises rapidly, which in turn raises the temperature of the adsorption magnet. Consequently, the adsorption magnet cannot be firmly adsorbed inside the windshield, and under the rebound force of the spring-loaded torsion spring, the spring-loaded rotating plate rotates and unfolds. At this time, the fire extinguishing sand stored in the fire extinguishing box flows into the windshield, and the two windshields close simultaneously. The fire extinguishing sand continues to accumulate inside the two windshields, achieving the function of physical fire extinguishing and preventing the fire from spreading further. Attached Figure Description

[0030] Figure 1 A three-dimensional structural schematic diagram of a high-voltage switchgear for wind power generation provided in an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram illustrating the connection between a mounting support frame and a windbreak lubrication device for a high-voltage switchgear used in wind power generation, as provided in an embodiment of the present invention.

[0032] Figure 3 This is a schematic diagram illustrating the connection between a windshield and an integrated baffle, etc., of a high-voltage switchgear for wind power generation, as provided in an embodiment of the present invention.

[0033] Figure 4 This is a schematic diagram illustrating the connection between a rotating push-pull frame and an integrated support, among other structures, in a high-voltage switchgear for wind power generation, as provided in an embodiment of the present invention.

[0034] Figure 5This is a cross-sectional view of the connection between the lower voltage frame and the load box of a high-voltage switchgear for wind power generation, as provided in an embodiment of the present invention.

[0035] Figure 6 This is a schematic diagram illustrating the connection between an auxiliary lubrication box and an extrusion pusher plate, etc., in a high-voltage switchgear for wind power generation, as provided in an embodiment of the present invention.

[0036] Figure 7 This is a cross-sectional structural diagram showing the connection between an auxiliary lubrication box and an extrusion pusher plate, etc., in a high-voltage switchgear for wind power generation, as provided in an embodiment of the present invention.

[0037] Figure 8 This is a partial structural diagram illustrating the connection between the spring-loaded rotating plate and the upper pusher frame of a high-voltage switchgear for wind power generation, as provided in an embodiment of the present invention.

[0038] Figure 9 A high-voltage switchgear for wind power generation is provided as an embodiment of the present invention. Figure 8 A schematic diagram of the structure of part A;

[0039] Figure 10 This is a partial cross-sectional view of the connection between the spring-loaded rotating plate and the mounting base of a high-voltage switchgear for wind power generation, as provided in an embodiment of the present invention.

[0040] In the diagram: 1-Mounting support frame; 2-Porcelain insulator; 3-Knife switch; 4-Plug contact head; 5-Cable; 6-Windproof lubrication device; 601-Windproof cover; 602-Reciprocating push frame; 603-Auxiliary lubrication box; 604-Spray head; 605-Rotating push-pull frame; 606-Push-pull shaft; 607-Integrated support; 608-Lower pressure frame; 609-Load box; 610-Support spring; 611-Synchronization ring; 612-Restriction strip; 613-Synchronization slot; 614-U-shaped frame; 615-Return spring; 616-Drive sleeve; 7-Self- 701-Extrusion push plate; 702-Upper extrusion frame; 703-Extrusion spring; 704-Integrated baffle; 705-Opening and closing push frame; 706-Pull-down spring; 707-Push rotating rod; 708-Arc-shaped opening and closing frame; 8-Auxiliary fire extinguishing device; 801-Fire extinguishing box; 802-Split-open rotating plate; 803-Mounting base; 804-Split-open rotating shaft; 805-Attractive magnet; 806-Mounting cavity; 807-Split-open torsion spring; 808-Separation push frame; 809-Upper push frame; 810-Drive frame; 811-Drive shaft. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0043] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0044] Furthermore, in the description of this invention, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] Furthermore, terms such as "horizontal," "vertical," and "perpendicular" do not imply that components must be absolutely vertical, but rather that they can be slightly tilted. For example, "vertical" simply means that its direction is more vertical relative to "horizontal," not that the structure must be completely vertical, but can be slightly tilted.

[0046] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0047] Please refer to the attached instruction manual. Figures 1-10The present invention provides a high-voltage switchgear for wind power generation, which includes a mounting support frame 1. Two porcelain insulators 2 are mounted on the bottom side of the mounting support frame 1. A switch 3 and a plug contact 4 are respectively mounted on the two porcelain insulators 2. The switch 3 is inserted into the plug contact 4, and a cable 5 is mounted on both the switch 3 and the plug contact 4.

[0048] It also includes a windshield lubrication device 6, which is mounted on the mounting support frame 1. The windshield lubrication device 6 is used to shield the knife switch 3 and lubricate the knife switch 3 and the plug contact 4. The windshield lubrication device 6 includes two windshield covers 601, which are slidably mounted on both sides of the mounting support frame 1. The knife switch 3 and the plug contact 4 are located inside the two windshield covers 601. Each of the two windshield covers 601 is equipped with an auxiliary lubrication box 603, which is filled with lubricating fluid. Multiple spray heads 604 are installed on the side of the two auxiliary lubrication boxes 603 that are close to each other. The multiple spray heads 604 are used to spray the lubricating fluid in the auxiliary lubrication box 603 onto the knife switch 3 and the plug contact 4. It should be noted that in this embodiment of the invention, when closing the circuit breaker, the two wind shields 601 are used to shield the circuit breaker, which can effectively prevent the generation of a large number of electric arcs during closing. In rainy or snowy weather, the two wind shields 601 move closer to each other to seal the porcelain insulator 2, thereby effectively preventing the humid air from causing corrosion to the switch 3 and the plug contact 4. In addition, through dual-mode protection in both open and closed states, the open state prevents electric arc contamination, and the closed state prevents moisture, effectively protecting the safety of the high-voltage switch.

[0049] Please refer to the attached instruction manual. Figure 3 , Figure 6 and Figure 7 More specifically, in this invention, an automatic opening and closing device 7 is installed on the windshield lubrication device 6. The automatic opening and closing device 7 is used to automatically open and close the windshield lubrication device 6. The automatic opening and closing device 7 includes two extrusion push plates 701, which are respectively movably installed in two auxiliary lubrication boxes 603. The extrusion push plates 701 are used to extrude the lubricating liquid in the auxiliary lubrication boxes 603. An integrated baffle 704 is movably installed on the side of the two auxiliary lubrication boxes 603 that are close to each other. Multiple spray heads 604 located on the same side are located in one integrated baffle 704. The integrated baffle 704 moves upward to expose the multiple spray heads 604. It should be noted that in this embodiment of the invention, when the two windshields 601 are closed, the integrated baffle 704 moves upward, thereby exposing multiple spray heads 604 and causing the extrusion pusher 701 to move upward, squeezing out the lubricating fluid in the auxiliary lubrication box 603 and spraying it onto the switch 3 and the plug contact 4 through the multiple spray heads 604, thereby achieving automatic lubrication and sealing the lubrication part. This can effectively prevent the switch 3 and plug contact 4 from getting wet from rain or covered by snow after lubrication, which would cause the lubricating fluid to deteriorate and fail.

[0050] Further, please refer to the appendix to the instruction manual. Figures 3-5 The present invention provides a high-voltage switchgear for wind power generation. The windbreak lubrication device 6 further includes two reciprocating pushers 602, two wind shields 601 are respectively mounted on the two reciprocating pushers 602, and the two reciprocating pushers 602 are respectively slidably mounted on both sides of the mounting support frame 1.

[0051] In addition, two pull springs 615 are installed on one side of the reciprocating push frame 602, and the other ends of the two pull springs 615 are installed on the inner wall of the mounting support frame 1. It should be noted that, in this embodiment of the invention, in the event of a fire, the separating push frame 808 pushes the rotating push-pull frame 605 to move, causing the rotating push-pull frame 605 to drive the two push-pull shafts 606 to disengage from the two reciprocating push frames 602. At this time, under the pull force of the multiple pull springs 615, the two reciprocating push frames 602 pull the two wind deflectors 601 to close, achieving the purpose of closing to extinguish the fire.

[0052] More specifically, in this embodiment of the invention, an integrated support 607 is installed on the top side of the mounting support frame 1. A drive sleeve 616 is rotatably mounted on the integrated support 607, and a rotating push-pull frame 605 is rotatably mounted on the drive sleeve 616. Two push-pull shafts 606 are rotatably mounted on the rotating push-pull frame 605, and the two push-pull shafts 606 are respectively movably mounted on two reciprocating push frames 602. Furthermore, two limiting strips 612 are installed on the integrated support 607, and the rotating push-pull frame 605 slides vertically on the two limiting strips 612. It should be noted that, in this embodiment of the invention, when the rotating push-pull frame 605 rotates, the two push-pull shafts 606 drive the two reciprocating push frames 602 to move, thereby causing the two windshields 601 to move closer to each other, achieving the purpose of sealing the porcelain bottle 2.

[0053] Please continue to refer to the instruction manual appendix. Figures 3-5 More specifically, in this embodiment of the invention, a lower pressure frame 608 is movably installed inside the integrated support 607, a load box 609 is installed on the top side of the lower pressure frame 608, and a support spring 610 is installed between the integrated support 607 and the lower pressure frame 608.

[0054] Furthermore, the surface of the drive sleeve 616 is provided with an arc-shaped synchronous rotating groove 613, and a U-shaped frame 614 is installed on the lower pressure frame 608, with one end of the U-shaped frame 614 extending into the synchronous rotating groove 613; a synchronous ring 611 is installed on the inner wall of the drive sleeve 616, and the synchronous ring 611 is rotatably mounted on the integrated support 607. It should be noted that, in this embodiment of the invention, rain and snow accumulate in the load box 609, causing the load box 609 to move downward under force, and driving the lower pressure frame 608 to move, synchronously driving the U-shaped frame 614 to rotate in the synchronous rotating groove 613, thereby driving the drive sleeve 616 to rotate. The drive sleeve 616 drives the rotating push-pull frame 605 to rotate through two limiting strips 612. The rotating push-pull frame 605 drives two reciprocating push frames 602 to move through two push-pull shafts 606, thereby driving the two windshields 601 to move closer to each other and close together.

[0055] Further, please refer to the appendix to the instruction manual. Figure 3 , Figure 6 and Figure 7 The present invention provides a high-voltage switchgear for wind power generation. The automatic opening and closing device 7 further includes two opening and closing pushers 705, which are movably installed in two auxiliary lubrication boxes 603 respectively. Two integrated baffles 704 are respectively installed on the two opening and closing pushers 705, and a pull-down spring 706 is installed on the opening and closing pusher 705. The pull-down spring 706 is installed on the auxiliary lubrication box 603.

[0056] Furthermore, each of the two opening / closing pushers 705 has a push rod 707 installed on one side, and each of the two wind deflectors 601 has an arc-shaped opening / closing frame 708 installed inside. When the two wind deflectors 601 move closer together, the two arc-shaped opening / closing frames 708 press against the two push rods 707, which in turn moves the integrated baffle 704. It should be noted that, in this embodiment of the invention, when the two wind deflectors 601 are closed, the two arc-shaped opening / closing frames 708 press against the two push rods 707, which in turn move the opening / closing pushers 705, causing the opening / closing pushers 705 to move the integrated baffle 704, thereby achieving the purpose of automatically exposing multiple spray heads 604.

[0057] It should be emphasized that, since the arc-shaped opening and closing frame 708 is designed for opening and closing, during the movement of the wind deflector 601, the arc-shaped opening and closing frame 708 pushes the rotating rod 707 by squeezing the rotating rod 707 through its arc-shaped part. During the movement of the rotating rod 707, multiple spray heads 604 are automatically exposed. Therefore, when the two wind deflectors 601 are fully closed, the rotating rod 707 is pushed away from the arc-shaped opening and closing frame 708 in time. Under the rebound force of the pull-down spring 706, the opening and closing push frame 705 drives the integrated baffle 704 to reset, blocking the spray heads 604 again. This ensures that the spray heads 604 spray only for a certain period of time, rather than spraying continuously, thus avoiding waste of lubricating fluid.

[0058] Please continue to refer to the instruction manual appendix. Figure 3 , Figure 6 and Figure 7 More specifically, in this embodiment of the invention, two upward-moving extrusion frames 702 are installed on the bottom side of the extrusion pusher plate 701, and an extrusion spring 703 is installed between the upward-moving extrusion frames 702 and the auxiliary lubrication box 603. It should be noted that in this embodiment of the invention, when multiple spray heads 604 are exposed, the two upward-moving extrusion frames 702 are pulled upward by the pull force of the two extrusion springs 703. The two upward-moving extrusion frames 702 drive the extrusion pusher plate 701 upward, thereby achieving the purpose of automatically extruding the lubricating fluid in the auxiliary lubrication box 603.

[0059] Further, please refer to the appendix to the instruction manual. Figures 8-10 This invention provides a high-voltage switchgear for wind power generation, which also includes an auxiliary fire extinguishing device 8. The auxiliary fire extinguishing device 8 is installed on a windbreak lubrication device 6 and is used to actively extinguish fires on the switch 3 and the plug contact 4. It should be noted that, in this embodiment of the invention, the auxiliary fire extinguishing device 8 enables active fire extinguishing of the switch 3 and the plug contact 4 in the event of a fire.

[0060] More specifically, in this embodiment of the invention, the auxiliary fire extinguishing device 8 further includes two fire extinguishing boxes 801, which are respectively installed on two windshields 601. In addition, a spring-loaded rotating plate 802 is movably installed on the inner wall of each of the two windshields 601. Adsorption magnets 805 are installed on both sides of the spring-loaded rotating plate 802. The spring-loaded rotating plate 802 is adsorbed onto the windshield 601 by the two adsorption magnets 805, thus sealing the fire extinguishing box 801. It should be noted that in this embodiment of the invention, when a fire occurs and the adsorption magnets 805 lose their magnetic force, the two windshields 601 close, and fire extinguishing sand continuously accumulates inside the two windshields 601, achieving the function of automatic fire extinguishing.

[0061] Please continue to refer to the instruction manual appendix. Figures 8-10 More specifically, in this embodiment of the invention, two mounting seats 803 are installed on the inner wall of the windshield 601, and a spring-loaded rotating shaft 804 is installed on the two mounting seats 803. A spring-loaded rotating plate 802 is rotatably mounted on the spring-loaded rotating shaft 804. In addition, a mounting cavity 806 is formed on the spring-loaded rotating plate 802, and the spring-loaded rotating shaft 804 is rotatably mounted in the mounting cavity 806. A spring-loaded torsion spring 807 is installed on the inner wall of the mounting cavity 806, and the other end of the spring-loaded torsion spring 807 is mounted on the spring-loaded rotating shaft 804. It should be noted that in this embodiment of the invention, in the event of a fire, the side wall temperature of the windshield 601 rises rapidly, causing the adsorption magnet 805 to lose its magnetism. Then, under the rebound force of the spring-loaded torsion spring 807, the spring-loaded rotating plate 802 rotates and unfolds.

[0062] More specifically, in this embodiment of the invention, a separation pusher 808 is movably mounted on a windshield 601. The separation pusher 808 moves upward to push the rotating push-pull frame 605 upward. An upper pusher 809 is movably mounted on the separation pusher 808. A drive shaft 811 is rotatably mounted on one side of the upper pusher 809, and a drive frame 810 is mounted on one side of the spring-opening rotating plate 802. The drive shaft 811 is movably mounted inside the drive frame 810. It should be noted that, in this embodiment of the invention, during the rotation of the spring-opening rotating plate 802, the spring-opening rotating plate 802 drives the driving shaft 811 to move via the driving frame 810. The driving shaft 811 drives the upper push frame 809 to move, which in turn drives the separation push frame 808 to move. The separation push frame 808 pushes the rotating push-pull frame 605 to move, which in turn drives the two push-pull shafts 606 to disengage from the two reciprocating push frames 602. At this time, under the pull force of multiple return springs 615, the two reciprocating push frames 602 pull the two windshields 601 to close, thereby achieving the purpose of automatically closing the two windshields 601.

[0063] In summary, the working principle of a high-voltage switchgear for wind power generation provided in this embodiment of the invention is as follows:

[0064] When closing the circuit breaker, the two wind shields 601 effectively prevent the generation of a large number of electric arcs. In rainy or snowy weather, the accumulation of rain and snow in the load box 609 causes the load box 609 to move downward under force, which in turn moves the lower pressure frame 608. The lower pressure frame 608 causes the support spring 610 to contract under force. When the lower pressure frame 608 moves, it simultaneously drives the U-shaped frame 614 to rotate in the synchronous rotating groove 613, which in turn drives the drive sleeve 616 to rotate. The drive sleeve 616 drives the rotating push-pull frame 605 to rotate through the two limiting bars 612. The rotating push-pull frame 605 drives the two reciprocating push frames 602 to move through the two push-pull shafts 606, which in turn causes the two wind shields 601 to move closer to each other and seal the porcelain insulator 2. This effectively prevents the rusting of the knife switch 3 and the plug contact 4 caused by humid air. In addition, the dual-mode protection in the open and closed states—preventing electric arc pollution in the open state and preventing moisture in the closed state—effectively protects the safety of the high-voltage switch.

[0065] Furthermore, when the two windshields 601 are closed, the two arc-shaped opening and closing frames 708 press the two push rods 707 to move, which in turn pushes the opening and closing push frame 705 to move. This causes the opening and closing push frame 705 to move the integrated baffle 704. At this time, multiple spray heads 604 are exposed, and under the pull force of the two extrusion springs 703, they pull the two upward extrusion frames 702 upward. The two upward extrusion frames 702 drive the extrusion push plate 701 upward, squeezing out the lubricating fluid in the auxiliary lubrication box 603 and spraying it onto the guillotine 3 and the plug contact head 4 through the multiple spray heads 604. This achieves automatic lubrication and can seal the lubrication part, effectively preventing the guillotine 3 and plug contact head 4 from getting wet from rain or covered by snow after lubrication, which could cause the lubricating fluid to deteriorate and fail.

[0066] Furthermore, in the event of a fire, the temperature of the side wall of the windshield 601 rises rapidly, which in turn raises the temperature of the adsorption magnet 805. Consequently, the adsorption magnet 805 can no longer firmly adhere to the windshield 601, and under the restoring force of the spring-loaded torsion spring 807, the spring-loaded rotating plate 802 rotates and unfolds. At this time, the fire extinguishing sand stored in the fire extinguishing box 801 flows into the windshield 601. When the spring-loaded rotating plate 802 rotates, it drives the drive shaft 811 to move through the drive frame 810. The upper push frame 809 is moved, which in turn moves the separation push frame 808. The separation push frame 808 pushes the rotating push-pull frame 605 to move, causing the rotating push-pull frame 605 to disengage the two push-pull shafts 606 from the two reciprocating push frames 602. At this time, under the pull force of multiple return springs 615, the two reciprocating push frames 602 pull the two windshields 601 to close. At the same time, fire extinguishing sand continues to accumulate inside the two windshields 601, achieving the function of physical fire extinguishing and preventing the fire from spreading further.

[0067] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-voltage switchgear for wind power generation, characterized in that, It includes a mounting support frame, on the bottom side of which two porcelain insulators are mounted. Each of the two porcelain insulators is equipped with a switch and a plug contact. The switch is inserted into the plug contact, and a cable is installed on both the switch and the plug contact. It also includes a windproof lubrication device, which is mounted on the mounting support frame. The windproof lubrication device is used to shield the switch and lubricate the switch and the plug contact. The windproof lubrication device includes two windproof covers, which are slidably mounted on both sides of the mounting support frame. The switch and the plug contact are located inside the two windproof covers. Each of the two windproof covers is equipped with an auxiliary lubrication box, which is filled with lubricating fluid. Multiple spray nozzles are installed on the side of the two auxiliary lubrication boxes that are close to each other. The multiple spray nozzles are used to spray the lubricating fluid in the auxiliary lubrication box onto the switch and the plug contact. The windshield lubrication device is equipped with an automatic opening and closing device for automatically opening and closing the windshield lubrication device. The automatic opening and closing device includes two extrusion push plates, which are movably installed in the two auxiliary lubrication boxes respectively. The extrusion push plates are used to expel the lubricating liquid in the auxiliary lubrication boxes. An integrated baffle is movably installed on the side of the two auxiliary lubrication boxes that are close to each other. Multiple spray heads located on the same side are located in one integrated baffle. The integrated baffle moves up to expose the multiple spray heads.

2. The high-voltage switchgear for wind power generation according to claim 1, characterized in that, The windshield lubrication device further includes two reciprocating pushers, the two windshields are respectively mounted on the two reciprocating pushers, and the two reciprocating pushers are respectively slidably mounted on both sides of the mounting support frame; Two return springs are installed on one side of the reciprocating push frame, and the other ends of the two return springs are installed on the inner wall of the mounting support frame.

3. A high-voltage switchgear for wind power generation according to claim 2, characterized in that, An integrated support is installed on the top side of the mounting support frame. A drive sleeve is rotatably installed on the integrated support. A rotating push-pull frame is rotatably installed on the drive sleeve. Two push-pull shafts are rotatably installed on the rotating push-pull frame. The two push-pull shafts are respectively movably installed on the two reciprocating push frames. The integrated support is equipped with two limiting bars, and the rotating push-pull bracket slides vertically on the two limiting bars.

4. A high-voltage switchgear for wind power generation according to claim 3, characterized in that, A lower pressure frame is movably installed inside the integrated support, a load box is installed on the top side of the lower pressure frame, and a support spring is installed between the integrated support and the lower pressure frame. The surface of the drive sleeve is provided with an arc-shaped synchronous rotating groove, and a U-shaped frame is installed on the lower pressure frame, with one end of the U-shaped frame extending into the synchronous rotating groove; A synchronization ring is installed on the inner wall of the drive sleeve, and the synchronization ring is rotatably mounted on the integrated support.

5. A high-voltage switchgear for wind power generation according to claim 1, characterized in that, The automatic opening and closing device also includes two opening and closing push frames, which are movably installed in the two auxiliary lubrication boxes respectively. The two integrated baffles are respectively installed on the two opening and closing push frames, and a pull-down spring is installed on the opening and closing push frame. The pull-down spring is installed on the auxiliary lubrication box. Each of the two opening and closing pushers is equipped with a push rod on one side, and each of the two wind deflectors is equipped with an arc-shaped opening and closing frame. The two wind deflectors move closer to each other, causing the two arc-shaped opening and closing frames to press against the two push rods, thereby driving the integrated baffle to move.

6. A high-voltage switchgear for wind power generation according to claim 5, characterized in that, Two upward-moving extrusion frames are installed on the bottom side of the extrusion pusher plate, and an extrusion spring is installed between the upward-moving extrusion frames and the auxiliary lubrication box.

7. A high-voltage switchgear for wind power generation according to claim 1, characterized in that, It also includes an auxiliary fire extinguishing device, which is installed on the windproof lubrication device and is used to actively extinguish the fire on the switch and the plug contact.

8. A high-voltage switchgear for wind power generation according to claim 7, characterized in that, The auxiliary fire extinguishing device also includes two fire extinguishing boxes, which are respectively installed on the two windshields; Both of the wind deflectors have a spring-loaded rotating plate movably installed on their inner walls. Each spring-loaded rotating plate has an adsorption magnet on both sides. The spring-loaded rotating plate is adsorbed onto the wind deflector by the two adsorption magnets to seal the fire extinguishing box.

9. A high-voltage switchgear for wind power generation according to claim 8, characterized in that, Two mounting seats are installed on the inner wall of the windshield, and a spring-loaded rotating shaft is installed on the two mounting seats. The spring-loaded rotating plate is rotatably mounted on the spring-loaded rotating shaft. The spring-loaded rotating plate has an installation cavity, the spring-loaded rotating shaft is rotatably installed in the installation cavity, a spring-loaded torsion spring is installed on the inner wall of the installation cavity, and the other end of the spring-loaded torsion spring is installed on the spring-loaded rotating shaft.

10. A high-voltage switchgear for wind power generation according to claim 9, characterized in that, A separation pusher is movably mounted on one of the windshields, an upper pusher is movably mounted on the separation pusher, a drive shaft is rotatably mounted on one side of the upper pusher, a drive frame is mounted on one side of the pop-out rotating plate, and the drive shaft is movably mounted in the drive frame.

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