High-voltage switch with high safety

Abstract

The invention discloses a high-safety high-voltage switch, and relates to the technical field of high-voltage switchs.The high-voltage switch comprises a bottom plate, a box body is fixedly connected to the top of the bottom plate, a top plate is fixedly connected to the top of the box body, a high-voltage switch body is fixedly connected to the top of the bottom plate, and a circuit breaking mechanism is arranged in the box body; a heat dissipation mechanism is arranged in the box body, and a dustproof mechanism is arranged in the box body. An electromagnetic relay can control an electric telescopic rod to lift a ceramic sleeve through a low-voltage control circuit, on-off of a high-voltage switch is controlled through a small circuit, control is safe, and when the ceramic sleeve switches on and off the high-voltage switch, an air pump can be controlled to be started through a second electromagnetic relay; the high-pressure spray head can spray high-speed airflow to perform air-blast arc extinguishing on the high-pressure switch, the safety of the high-pressure switch during on-off can be ensured by matching with the arc extinguishing cover, heat in the box body is quickly cooled through the heat dissipation mechanism, and the internal environment of the box body is ensured to be at a safe temperature.

Description

Technical Field

[0001] This invention relates to the field of high-voltage switch technology, and specifically to a high-voltage switch with high safety. Background Technology

[0002] High-voltage switches refer to electrical appliances with a rated voltage of 3kV and above, mainly used for breaking and closing conductive circuits. From 2007 to 2012, the total industrial output value of the high-voltage switch manufacturing industry increased year by year, with a year-on-year growth rate of over 10%, and the industry maintained a relatively fast development speed. The strategic adjustment methods of the high-voltage switch industry are mainly divided into vertical extension and horizontal expansion. Vertical extension refers to the in-depth development of the industry's scale, system, and quality, such as the innovation of high-voltage load switch equipment technology. Horizontal expansion refers to an expansion that focuses on the scale and structure of the high-voltage switch industry.

[0003] A search revealed Chinese patent CN210743868U, which discloses a high-voltage switch, including a mounting base, a mounting cover containing switching components, and a diaphragm located between the mounting base and the mounting cover. The mounting base has a liquid flow channel, and along the axial direction of the liquid flow channel, the mounting base is sequentially equipped with a tube claw, a baffle, a sealing ring, and a bracket from the outside to the inside. The tube claw engages within the liquid flow channel of the mounting base. One end of the bracket presses against the sealing ring, and the other end of the bracket presses against the edge of the diaphragm to seal it. The diaphragm connects to the liquid flow channel of the mounting base through the bracket. The mounting base and the mounting cover are fixedly connected. This utility model, by making the mounting base an integral structure, ensures stable liquid inlet, achieves stable pipeline connection, and prevents pipeline detachment.

[0004] However, this type of high-voltage switch lacks adequate external protection during use, making it susceptible to interference from external factors when used outdoors. This results in poor practicality, reduces the safety of the high-voltage switch to some extent, and makes it inconvenient to switch on and off. Summary of the Invention

[0005] This invention provides a high-voltage switch with high safety to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] A high-voltage switch with high safety includes a base plate, a housing fixedly connected to the top of the base plate, a top plate fixedly connected to the top of the housing, a high-voltage switch body fixedly connected to the top of the base plate, and a circuit breaker mechanism installed inside the housing.

[0008] The enclosure is equipped with a heat dissipation mechanism and a dust prevention mechanism. The circuit breaker mechanism includes an electric telescopic rod, which is fixedly connected to the top of the base plate. A first electromagnetic relay is fixedly connected to the top of the base plate. A ceramic sleeve is fixedly connected to the output end of the electric telescopic rod. The ceramic sleeve is mounted on the high-voltage switch body. An air pump is fixedly connected to the top of the base plate. First connecting blocks are fixedly connected to both sides of the inner cavity of the enclosure.

[0009] An arc-extinguishing hood is fixedly connected to one side of the first connecting block, a high-pressure nozzle is fixedly connected to the top of the inner cavity of the arc-extinguishing hood, an air guide pipe is connected to the air outlet of the air pump, and a second electromagnetic relay is fixedly connected to the top of the base plate.

[0010] A further improvement of the technical solution of the present invention is that: the heat dissipation mechanism includes heat dissipation holes, the heat dissipation holes are opened on one side of the inner cavity of the box, a water pump is fixedly connected to one side of the inner cavity of the box, a water tank is fixedly connected to one side of the box, a cooling water pipe is fixedly connected to one side of the inner cavity of the box, an equipment box is fixedly connected to one side of the inner cavity of the box, the water inlet of the water pump is connected to the water tank, the water outlet of the water pump is connected to the cooling water pipe, and the cooling water pipe is connected to the water tank.

[0011] A further improvement of the technical solution of the present invention is that: a third bevel gear is fixedly connected to the first rotating shaft, a fourth bevel gear is meshed with the third bevel gear, a second rotating shaft is rotatably connected to one side of the inner cavity of the equipment box through a bearing, the second rotating shaft and the fourth bevel gear are fixedly connected, and a fan blade is fixedly connected to the second rotating shaft.

[0012] A further improvement of the technical solution of the present invention is that: a third bevel gear is fixedly connected to the first rotating shaft, a fourth bevel gear is meshed with the third bevel gear, a second rotating shaft is rotatably connected to one side of the inner cavity of the equipment box through a bearing, the second rotating shaft and the fourth bevel gear are fixedly connected, and a fan blade is fixedly connected to the second rotating shaft.

[0013] Using the above technical solution, the configuration allows the first rotating shaft to rotate, which in turn drives the third bevel gear to rotate, causing the fourth bevel gear meshing with the third bevel gear to rotate, which in turn causes the second rotating shaft, which is fixedly connected to the fourth bevel gear, to rotate, and the fan blades, which are fixedly connected to the second rotating shaft, to rotate, thereby providing air cooling for the high-voltage switch.

[0014] A further improvement of the technical solution of the present invention is that: the top of the base plate is rotatably connected to a limiting rod via a bearing, the other end of the limiting rod is rotatably connected to the bottom of the inner cavity of the equipment box via a bearing, the limiting rod passes through the second connecting block and is slidably connected to the second connecting block.

[0015] The above technical solution is designed to limit the second connecting block, prevent it from rotating, and prevent it from wobbling during its up-and-down reciprocating motion.

[0016] A further improvement of the technical solution of the present invention is that a fixing block is fixedly connected to one side of the inner cavity of the box, and the fixing block is penetrated by the air guide pipe and fixedly connected to the air guide pipe.

[0017] By adopting the above technical solution, the air duct is supported and fixed in this way, ensuring the stability of the air duct.

[0018] A further improvement of the technical solution of the present invention is that: the first electromagnetic relay is electrically connected to the electric telescopic rod, and the second electromagnetic relay is electrically connected to the air pump.

[0019] Using the above technical solution, the electric telescopic pole and air pump can be intelligently controlled via electromagnetic relays.

[0020] A further improvement of the technical solution of the present invention is that the ceramic sleeve is embedded and connected to the knife rod of the high-voltage switch body.

[0021] The above technical solution is designed such that, due to the high insulation of the ceramic sleeve, the high voltage current of the switch rod can be prevented from being transmitted through the ceramic sleeve.

[0022] A further improvement of the technical solution of the present invention is that a baffle is fixedly connected to one side of the box.

[0023] By adopting the above technical solution, this design can prevent dust and rainwater from entering the device through the heat dissipation holes.

[0024] A further improvement of the technical solution of the present invention is that: the base plate is provided with a mounting hole, and the mounting hole is provided with a thread.

[0025] By adopting the above technical solution, the base plate can be fixed to the ground using bolts and mounting holes, thereby improving the stability of the device.

[0026] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows:

[0027] 1. This invention provides a high-safety high-voltage switch. The ceramic sleeve can be raised by an electric telescopic rod controlled by a first electromagnetic relay through a low-voltage control circuit. This allows for small-circuit control of the high-voltage switch, ensuring safety and solving the problem of inconvenient control. When the ceramic sleeve is used to switch the high-voltage switch on or off, a second electromagnetic relay can be used to start an air pump. The high-pressure nozzle can spray high-speed airflow to extinguish the arc of the high-voltage switch. Combined with the arc-extinguishing cover, this ensures the safety of the high-voltage switch during switching on and off.

[0028] 2. This invention provides a high-voltage switch with high safety. By setting up a heat dissipation mechanism, it accelerates the air convection speed through air cooling and combines it with water cooling for dual cooling, thereby achieving rapid cooling of the heat inside the box and ensuring that the internal environment of the box is at a safe temperature.

[0029] 3. This invention provides a high-voltage switch with high safety. By setting a dustproof mechanism, it effectively prevents dust from entering the device through the heat dissipation holes. At the same time, it can clean the dust attached to the heat dissipation holes, prevent the heat dissipation holes from being blocked, and ensure the heat dissipation of the device. Attached Figure Description

[0030] Figure 1 This is a front view of the present invention;

[0031] Figure 2 This is a schematic diagram of the structure of the present invention;

[0032] Figure 3 This is a side sectional view of the present invention;

[0033] Figure 4 This is a front sectional view of the present invention;

[0034] Figure 5 This is a top sectional view of the present invention;

[0035] Figure 6 This is an enlarged view of invention A;

[0036] Figure 7 This is a diagram illustrating the baffle of the present invention.

[0037] In the diagram: 1. Base plate; 2. Housing; 3. Top plate; 4. High-voltage switch body; 5. Circuit breaking mechanism; 501. Electric telescopic rod; 502. First electromagnetic relay; 503. Ceramic sleeve; 504. Air pump; 505. First connecting block; 506. Arc extinguishing chamber; 507. High-pressure nozzle; 508. Air guide pipe; 509. Second electromagnetic relay; 510. Fixing block; 6. Heat dissipation mechanism; 601. Heat dissipation hole; 602. Water pump; 6 03. Water tank; 604. Cooling water pipe; 605. Equipment box; 606. Baffle; 7. Dustproof mechanism; 701. Motor; 702. First rotating shaft; 703. First bevel gear; 704. Second bevel gear; 705. Reciprocating screw; 706. Second connecting block; 707. Cleaning block; 708. Limiting rod; 709. Third bevel gear; 710. Fourth bevel gear; 711. Second rotating shaft; 712. Fan blade; 8. Mounting hole. Detailed Implementation

[0038] The present invention will be further described in detail below with reference to embodiments:

[0039] Example 1

[0040] like Figure 1 , Figure 2 , Figure 5As shown, this invention provides a high-voltage switch with high safety, including a base plate 1. The base plate 1 has mounting holes 8 with threads, allowing it to be fixed to the ground using bolts and mounting holes 8, improving stability. A housing 2 is fixedly connected to the top of the base plate 1. A baffle 606 is fixedly connected to one side of the housing 2 to prevent dust and rainwater from entering the device through heat dissipation holes 601. A fixing block 510 is fixedly connected to one side of the inner cavity of the housing 2. The fixing block 510 is penetrated by the air duct 508 and is fixedly connected to the air duct 508, thus providing support and fixation for the air duct 508 and ensuring its stability. A top plate 3 is fixedly connected to the top of the housing 2, and a high-voltage switch body 4 is fixedly connected to the top of the bottom plate 1. A circuit breaker mechanism 5, a heat dissipation mechanism 6, and a dustproof mechanism 7 are installed inside the housing 2. The circuit breaker mechanism 5 includes an electric telescopic rod 501, which is fixedly connected to the top of the bottom plate 1. A first electromagnetic relay 502 is fixedly connected to the top of the device. The first electromagnetic relay 502 is electrically connected to the electric telescopic rod 501, and a second electromagnetic relay 509 is electrically connected to the air pump 504. This configuration allows for intelligent control of the electric telescopic rod 501 and the air pump 504 via the electromagnetic relays. A ceramic sleeve 503 is fixedly connected to the output end of the electric telescopic rod 501. The ceramic sleeve 503 is embedded in the knife rod of the high-voltage switch body 4. This configuration, due to the high height of the ceramic sleeve 503, allows for intelligent control of both the electric telescopic rod 501 and the air pump 504. The insulation prevents the high-voltage current of the switch rod from being transmitted through the ceramic sleeve 503. The ceramic sleeve 503 is installed on the high-voltage switch body 4. An air pump 504 is fixedly connected to the top of the base plate 1. First connecting blocks 505 are fixedly connected to both sides of the inner cavity of the housing 2. An arc extinguishing cover 506 is fixedly connected to one side of the first connecting block 505. A high-pressure nozzle 507 is fixedly connected to the top of the inner cavity of the arc extinguishing cover 506. An air guide pipe 508 is connected to the air outlet of the air pump 504. A second electromagnetic relay 509 is fixedly connected to the top of the base plate 1.

[0041] In this embodiment, a fixing block 510 is fixedly connected to one side of the inner cavity of the housing 2. The fixing block 510 is penetrated by the air guide pipe 508 and fixedly connected to the air guide pipe 508. This provides support and fixation for the air guide pipe 508, ensuring its stability. A first electromagnetic relay 502 is electrically connected to the electric telescopic rod 501, and a second electromagnetic relay 509 is electrically connected to the air pump 504. This configuration allows for intelligent control of the electric telescopic rod 501 and the air pump 504 via the electromagnetic relays. The ceramic sleeve 503 is embedded and connected to the knife rod of the high-voltage switch body 4. This design, due to the high insulation of the ceramic sleeve 503, prevents the high-voltage current of the knife rod from being transmitted through the ceramic sleeve 503. A baffle 606 is fixedly connected to one side of the housing 2 to prevent dust and rainwater from entering the device through the heat dissipation hole 601. The base plate 1 has mounting holes 8 with threads, which can be used to fix the base plate 1 to the ground with bolts and mounting holes 8, thus improving the stability of the device.

[0042] Example 2

[0043] like Figure 1 , Figure 3 , Figure 4 , Figure 7 As shown, based on Embodiment 1, the present invention provides a technical solution: Preferably, the heat dissipation mechanism 6 includes a heat dissipation hole 601, which is opened on one side of the inner cavity of the housing 2. A water pump 602 is fixedly connected to one side of the inner cavity of the housing 2, a water tank 603 is fixedly connected to one side of the housing 2, a cooling water pipe 604 is fixedly connected to one side of the inner cavity of the housing 2, and an equipment box 605 is fixedly connected to one side of the inner cavity of the housing 2. The inlet of the water pump 602 is connected to the water tank 603, the outlet of the water pump 602 is connected to the cooling water pipe 604, and the cooling water pipe 604 is connected to the water tank 603.

[0044] Example 3

[0045] like Figure 1 , Figure 2 , Figure 4 , Figure 6As shown, based on Embodiment 1, the present invention provides a technical solution: Preferably, a third bevel gear 709 is fixedly connected to a first rotating shaft 702. A fourth bevel gear 710 is meshed with the third bevel gear 709. A second rotating shaft 711 is rotatably connected to one side of the inner cavity of the equipment housing 605 via a bearing. The second rotating shaft 711 and the fourth bevel gear 710 are fixedly connected. A fan blade 712 is fixedly connected to the second rotating shaft 711. This configuration allows the rotation of the first rotating shaft 702 to drive the third bevel gear 709 to rotate, causing the fourth bevel gear 710 meshing with the third bevel gear 709 to rotate, which in turn causes the second rotating shaft 711, fixedly connected to the fourth bevel gear 710, to rotate, thus rotating the second rotating shaft 711. The fixed fan blade 712 rotates to provide air cooling for the high-voltage switch. A fourth bevel gear 710 is meshed on the third bevel gear 709. A second rotating shaft 711 is rotatably connected to one side of the inner cavity of the equipment box 605 via a bearing. The second rotating shaft 711 and the fourth bevel gear 710 are fixedly connected. The fan blade 712 is fixedly connected to the second rotating shaft 711. A limit rod 708 is rotatably connected to the top of the base plate 1 via a bearing. The other end of the limit rod 708 is rotatably connected to the bottom of the inner cavity of the equipment box 605 via a bearing. The limit rod 708 passes through the second connecting block 706 and is slidably connected to the second connecting block 706. This setting limits the second connecting block 706, prevents the second connecting block 706 from rotating, and prevents the second connecting block 706 from shaking when it moves up and down.

[0046] In this embodiment, a third bevel gear 709 is fixedly connected to a first rotating shaft 702, and a fourth bevel gear 710 is meshed with the third bevel gear 709. A second rotating shaft 711 is rotatably connected to one side of the inner cavity of the equipment box 605 via a bearing. The second rotating shaft 711 and the fourth bevel gear 710 are fixedly connected, and a fan blade 712 is fixedly connected to the second rotating shaft 711. This configuration allows the rotation of the first rotating shaft 702 to drive the third bevel gear 709 to rotate, causing the fourth bevel gear 710, which meshes with the third bevel gear 709, to rotate, thus enabling the fan blade 712 to rotate. The rotation of the fixedly connected second rotating shaft 711 causes the fan blade 712, which is fixedly connected to the second rotating shaft 711, to rotate, thereby providing air cooling for the high-voltage switch. A limit rod 708 is rotatably connected to the top of the base plate 1 via a bearing. The other end of the limit rod 708 is rotatably connected to the bottom of the inner cavity of the equipment box 605 via a bearing. The limit rod 708 passes through the second connecting block 706 and is slidably connected to the second connecting block 706. This arrangement limits the second connecting block 706, preventing it from rotating and shaking when it moves up and down.

[0047] The working principle of this high-voltage switch with high safety will be explained in detail below.

[0048] like Figure 1-7 As shown, the first electromagnetic relay 502 controls the electric telescopic rod 501 to raise the ceramic sleeve 503, which in turn drives the knife rod of the high-voltage switch body 4 to rise. The ceramic sleeve 503 can slide on the outer wall of the knife rod. The ceramic sleeve 503 has high insulation properties. When the knife rod is separated, an electric arc will be generated. The second electromagnetic relay 509 controls the air pump 504 to start. The high-pressure nozzle 507 can spray high-speed airflow to blow out the arc of the high-voltage switch body 4. The first electromagnetic relay 502 controls the electric telescopic rod 501 to sink. The ceramic sleeve 503 can drive the knife rod to close and cooperate with the high-voltage switch body 4, realizing the energization of the high-voltage switch body 4. When a lot of heat is generated inside the box 2, the water pump 602 starts and transfers the cooling medium in the external water tank 603 to the cooling water pipe 604 to cool the internal temperature of the box 2 through water cooling. Then the motor 701 is started, so that the motor 701 outputs... The rotation of the first rotating shaft 702, which is fixedly connected to the output end, causes the rotation of the third bevel gear 709, which is fixedly connected to the first rotating shaft 702, to rotate. This causes the rotation of the fourth bevel gear 710, which meshes with the third bevel gear 709, to rotate. This causes the rotation of the second rotating shaft 711, which is fixedly connected to the fourth bevel gear 710, to rotate. This causes the fan blade 712, which is fixedly connected to the second rotating shaft 711, to rotate. This allows the temperature inside the housing 2 to be cooled down a second time by air cooling, thus accelerating the cooling speed. The rotation of the first rotating shaft 702 drives the rotation of the first bevel gear 703, which causes the rotation of the second bevel gear 704, which meshes with the first bevel gear 703, to rotate. This causes the rotation of the reciprocating screw 705, which is fixedly connected to the second bevel gear 704, to rotate. This causes the second connecting block 706, which is threadedly connected to the reciprocating screw 705, to move up and down. This causes the cleaning block 707, which is detachably connected to the second connecting block 706, to move up and down. This allows the cleaning block 707 to clean the heat dissipation hole 601.

[0049] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A high-voltage switch with high safety comprising a base plate (1), characterized in that: The top of the base plate (1) is fixedly connected to the housing (2), the top of the housing (2) is fixedly connected to the top plate (3), the top of the base plate (1) is fixedly connected to the high voltage switch body (4), and the housing (2) is provided with a circuit breaker mechanism (5). The housing (2) is equipped with a heat dissipation mechanism (6) and a dustproof mechanism (7). The circuit breaker mechanism (5) includes an electric telescopic rod (501). The electric telescopic rod (501) is fixedly connected to the top of the base plate (1). The top of the base plate (1) is fixedly connected to a first electromagnetic relay (502). The output end of the electric telescopic rod (501) is fixedly connected to a ceramic sleeve (503). The ceramic sleeve (503) is mounted on the high-voltage switch body (4). The top of the base plate (1) is fixedly connected to an air pump (504). The two sides of the inner cavity of the housing (2) are fixedly connected to a first connecting block (505). An arc-extinguishing hood (506) is fixedly connected to one side of the first connecting block (505). A high-pressure nozzle (507) is fixedly connected to the top of the inner cavity of the arc-extinguishing hood (506). An air guide pipe (508) is connected to the air outlet of the air pump (504). A second electromagnetic relay (509) is fixedly connected to the top of the base plate (1).

2. The high-voltage switch with high safety according to claim 1, characterized in that: The heat dissipation mechanism (6) includes a heat dissipation hole (601), which is opened on one side of the inner cavity of the box (2). A water pump (602) is fixedly connected to one side of the inner cavity of the box (2), a water tank (603) is fixedly connected to one side of the box (2), a cooling water pipe (604) is fixedly connected to one side of the inner cavity of the box (2), and an equipment box (605) is fixedly connected to one side of the inner cavity of the box (2). The inlet of the water pump (602) is connected to the water tank (603), the outlet of the water pump (602) is connected to the cooling water pipe (604), and the cooling water pipe (604) is connected to the water tank (603).

3. The high-voltage switch with high safety according to claim 1, characterized in that: The dustproof mechanism (7) includes a motor (701), which is fixedly connected to one side of the equipment box (605) via a chassis. The output end of the motor (701) is fixedly connected to a first rotating shaft (702) via a coupling. The end of the first rotating shaft (702) away from the motor (701) is rotatably connected to one side of the inner cavity of the equipment box (605) via a bearing. A first bevel gear (703) is fixedly connected to the first rotating shaft (702), and a second bevel gear is meshed on the first bevel gear (703). The gear (704) is rotatably connected to the top of the base plate (1) via a bearing, and the second bevel gear (704) and the reciprocating screw (705) are fixedly connected. The other end of the reciprocating screw (705) is rotatably connected to the bottom of the inner cavity of the equipment box (605) via a bearing. A second connecting block (706) is threaded onto the reciprocating screw (705). A cleaning block (707) is detachably connected to one side of the second connecting block (706). The cleaning block (707) is in contact with the heat dissipation hole (601).

4. The high-voltage switch with high safety according to claim 3, characterized in that: A third bevel gear (709) is fixedly connected to the first rotating shaft (702), and a fourth bevel gear (710) is meshed with the third bevel gear (709). A second rotating shaft (711) is rotatably connected to one side of the inner cavity of the equipment box (605) through a bearing. The second rotating shaft (711) and the fourth bevel gear (710) are fixedly connected. A fan blade (712) is fixedly connected to the second rotating shaft (711).

5. The high-voltage switch with high safety according to claim 1, characterized in that: The top of the base plate (1) is rotatably connected to a limiting rod (708) via a bearing. The other end of the limiting rod (708) is rotatably connected to the bottom of the inner cavity of the equipment box (605) via a bearing. The limiting rod (708) passes through the second connecting block (706) and is slidably connected to the second connecting block (706).

6. The high-voltage switch with high safety according to claim 1, characterized in that: A fixing block (510) is fixedly connected to one side of the inner cavity of the box (2). The fixing block (510) is penetrated by the air guide pipe (508) and is fixedly connected to the air guide pipe (508).

7. The high-voltage switch with high safety according to claim 1, characterized in that: The first electromagnetic relay (502) is electrically connected to the electric telescopic rod (501), and the second electromagnetic relay (509) is electrically connected to the air pump (504).

8. The high-voltage switch with high safety according to claim 1, characterized in that: The ceramic sleeve (503) is embedded and connected to the knife rod of the high-voltage switch body (4).

9. The high-voltage switch with high safety according to claim 1, characterized in that: A baffle (606) is fixedly connected to one side of the box (2).

10. A high-voltage switch with high safety according to claim 1, characterized in that: The base plate (1) has a mounting hole (8) and the mounting hole (8) is threaded.

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