Alternating-current metal-enclosed switchgear

Abstract

The utility model provides an AC metal-enclosed switchgear. The alternating-current metal-enclosed switchgear comprises an alternating-current metal-enclosed switchgear body; the plurality of insulating cushion blocks are fixedly mounted at the bottom of the alternating-current metal-enclosed switchgear body; the base plate is arranged below the plurality of insulating cushion blocks; the mounting shell is arranged outside the alternating-current metal-enclosed switchgear body, and the bottom of the mounting shell is fixedly connected with the base plate; and the lifting plate is arranged at the bottom of the base plate. The AC metal-enclosed switchgear provided by the utility model has the advantages that the height can be adjusted according to actual conditions, water inlet damage during raining and water rising is avoided, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of switch equipment, in particular to an AC metal-enclosed switch equipment. Background Art

[0002] The AC metal-enclosed switchgear mainly consists of three parts: the boundary switch body, fault detection control and external voltage transformer. The equipment is installed at the 10KV user branch cable branch. After the equipment is put into automatic operation, it can automatically cut off and automatically isolate the single-phase grounding and phase-to-phase short-circuit faults of the controlled line, avoiding the fault of the distribution network cable user branch line and the fault of the user's own equipment from affecting the main line of the distribution network, thereby limiting the scope and time of the fault power outage to a minimum, and effectively improving the power supply reliability of the distribution network.

[0003] However, existing AC metal-enclosed switchgear is usually installed on the ground or in a pit. Since its height cannot be adjusted, it causes serious water accumulation on the ground or in the pit during heavy rains. The rising water level can cause water to enter the equipment, thereby causing electrical failures and safety hazards.

[0004] Therefore, it is necessary to provide a new AC metal-enclosed switchgear to solve the above technical problems. Utility Model Content

[0005] The utility model provides an AC metal-enclosed switchgear to solve the technical problem in the above background technology that the height of the existing AC metal-enclosed switchgear cannot be adjusted and electrical faults and safety hazards are easily caused during heavy rain.

[0006] The AC metal-enclosed switchgear provided by the utility model comprises: an AC metal-enclosed switchgear body; a plurality of insulating pads, which are fixedly mounted on the bottom of the AC metal-enclosed switchgear body; a base plate, which is arranged below the plurality of insulating pads; a mounting shell, which is arranged outside the AC metal-enclosed switchgear body, and the bottom of the mounting shell is fixedly connected to the base plate; an adjustable lifting plate, which is arranged at the bottom of the base plate; and a driving and adjusting mechanism for adjusting the height of the lifting plate, which is arranged on the mounting shell.

[0007] Preferably, the driving and adjusting mechanism includes two mounting blocks, a screw, a threaded cylinder, a guide rod, a guide cylinder, a motor and two bevel teeth, the two mounting blocks are symmetrically and fixedly mounted on the inner walls on both sides of the mounting shell, the screw is rotatably mounted on one of the mounting blocks, the threaded cylinder is threadedly sleeved on the screw, the bottom end of the threaded cylinder passes through the base plate and is fixedly connected to the lifting plate, the guide rod is fixedly mounted on the other mounting block, the guide cylinder is slidably sleeved on the guide rod, the bottom end of the guide cylinder passes through the base plate and is fixedly connected to the lifting plate, the motor is fixedly mounted on one side of the mounting shell, the two bevel teeth are respectively fixedly mounted on the output shaft of the motor and on the top end of the screw, and the two bevel teeth are meshed with each other.

[0008] Preferably, the mounting shell is provided with a heat dissipation mechanism for supplying fresh air into the body of the AC metal-enclosed switchgear for heat dissipation, the heat dissipation mechanism comprising a fan, an air outlet pipe, a dust filter box and a connecting pipe, the fan is arranged on one side of the mounting shell, the air outlet pipe is fixedly installed on the air outlet end of the fan, the air outlet end of the air outlet pipe passes through the mounting shell and is fixedly connected to the body of the AC metal-enclosed switchgear, the dust filter box is arranged on one side of the mounting shell, the connecting pipe is fixedly installed on the air inlet end of the fan, and the air inlet end of the connecting pipe is fixedly connected to the dust filter box.

[0009] Preferably, a plurality of support rods are symmetrically fixedly mounted on the top of the AC metal-enclosed switchgear body, and a same shielding shell is fixedly mounted on the top ends of the plurality of support rods.

[0010] Preferably, a filter bag and a filter plate for filtering dust and impurities are arranged in the dust filter box, a detachable box cover is arranged on the top of the dust filter box, and the top of the box cover is fixedly connected to an air intake pipe.

[0011] Preferably, through holes are symmetrically provided on the base plate, two of the through holes are matched with the threaded cylinder and the guide cylinder, and a plurality of foot pads are symmetrically fixedly installed on the bottom of the base plate.

[0012] Preferably, an assembly frame is fixedly installed on one side of the mounting shell, the assembly frame is fixedly connected to the fan, the AC metal-enclosed switchgear body is provided with a heat dissipation port, a mesh plate is arranged on the outer side of the heat dissipation port, and the mesh plate is fixedly connected to the AC metal-enclosed switchgear body.

[0013] Compared with the related art, the AC metal-enclosed switchgear provided by the utility model has the following beneficial effects:

[0014] The utility model provides an AC metal-enclosed switch device:

[0015] 1. The AC metal-enclosed switchgear body, insulating pads, base plate, mounting shell and elevation plate can form a new type of AC metal-enclosed switchgear, and the height can be adjusted according to actual conditions to prevent water from entering the AC metal-enclosed switchgear body when it rains and the water level rises;

[0016] 2. Through the set driving regulator, after simple operation, the height of the rising plate can be adjusted labor-savingly and conveniently, and the height adjustment can be realized. Through the set heat dissipation mechanism, fresh air can be supplied into the body of the AC metal-enclosed switchgear after simple operation, which can speed up air circulation, facilitate ventilation and heat dissipation, and avoid high temperature inside the body of the AC metal-enclosed switchgear. Through the set support rod, a shielding shell can be installed. Through the set shielding shell, the body of the AC metal-enclosed switchgear can be shaded and rainproofed to avoid it from being rained and exposed to the sun, which is beneficial to delaying its aging. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a front cross-sectional structure of a preferred embodiment of an AC metal-enclosed switchgear provided by the utility model;

[0018] Figure 2 It is a rear view structural schematic diagram of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the installation shell in the utility model;

[0020] Figure 4 It is a schematic diagram of the main cross-sectional structure of the dust filter box in the utility model.

[0021] Numbers in the figure: 1. AC metal-enclosed switchgear body; 2. Insulating spacer; 3. Base plate; 4. Mounting shell; 5. Lifting plate; 6. Mounting block; 7. Screw; 8. Threaded cylinder; 9. Guide rod; 10. Guide cylinder; 11. Motor; 12. Bevel gear; 13. Fan; 14. Air outlet duct; 15. Dust filter box; 16. Connecting pipe; 17. Support rod; 18. Shielding shell. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0023] Please refer to Figure 1-Figure 4 ,in, Figure 1 A schematic diagram of a front cross-sectional structure of a preferred embodiment of an AC metal-enclosed switchgear provided by the utility model; Figure 2 It is a rear view structural schematic diagram of the utility model; Figure 3 It is a structural schematic diagram of the installation shell in the utility model; Figure 4 It is a schematic diagram of the main cross-sectional structure of the dust filter box in the utility model.

[0024] The AC metal-enclosed switchgear comprises: an AC metal-enclosed switchgear body 1; a plurality of insulating pads 2, wherein the plurality of insulating pads 2 are fixedly mounted at the bottom of the AC metal-enclosed switchgear body 1; a base plate 3, wherein the base plate 3 is arranged below the plurality of insulating pads 2; a mounting shell 4, wherein the mounting shell 4 is arranged outside the AC metal-enclosed switchgear body 1, and the bottom of the mounting shell 4 is fixedly connected to the base plate 3; an adjustable lifting plate 5, wherein the lifting plate 5 is arranged at the bottom of the base plate 3; a driving and adjusting mechanism for adjusting the height of the lifting plate 5, wherein the driving and adjusting mechanism is arranged on the mounting shell 4. By means of the AC metal-enclosed switchgear body 1, insulating pads 2, base plate 3, mounting shell 4 and lifting plate 5, a new type of AC metal-enclosed switchgear can be constituted, and the height can be adjusted according to actual conditions to prevent water from entering the AC metal-enclosed switchgear body 1 when it rains and the water level rises.

[0025] The drive adjustment mechanism includes two mounting blocks 6, a screw 7, a threaded cylinder 8, a guide rod 9, a guide cylinder 10, a motor 11 and two bevel gears 12. The two mounting blocks 6 are symmetrically fixedly mounted on the inner walls on both sides of the mounting shell 4. The screw 7 is rotatably mounted on one of the mounting blocks 6. The threaded cylinder 8 is threadedly sleeved on the screw 7. The bottom end of the threaded cylinder 8 passes through the base plate 3 and is fixedly connected to the lifting plate 5. The guide rod 9 is fixedly mounted on the other mounting block 6. The guide cylinder 10 is slidably sleeved on the guide rod 9. The bottom end of the guide cylinder 10 passes through the base plate 3 and is fixedly connected to the lifting plate 5. The motor 11 is fixedly mounted on one side of the mounting shell 4. The two bevel gears 12 are respectively fixedly mounted on the output shaft of the motor 11 and on the top of the screw 7. The two bevel gears 12 are meshed with each other. Through the set drive adjustment machine, the height of the lifting plate 5 can be adjusted labor-savingly and conveniently after simple operation, and height adjustment can be achieved.

[0026] The mounting shell 4 is provided with a heat dissipation mechanism for supplying fresh air into the AC metal-enclosed switchgear body 1 for heat dissipation. The heat dissipation mechanism includes a fan 13, an air outlet pipe 14, a dust filter box 15 and a connecting pipe 16. The fan 13 is arranged on one side of the mounting shell 4. The air outlet pipe 14 is fixedly installed on the air outlet end of the fan 13. The air outlet end of the air outlet pipe 14 passes through the mounting shell 4 and is fixedly connected with the AC metal-enclosed switchgear body 1. The dust filter box 15 is arranged on one side of the mounting shell 4. The connecting pipe 16 is fixedly installed on the air inlet end of the fan 13. The air inlet end of the connecting pipe 16 is fixedly connected with the dust filter box 15. Through the heat dissipation mechanism, fresh air can be supplied into the AC metal-enclosed switchgear body 1 after simple operation, which can accelerate air circulation, facilitate ventilation and heat dissipation, and avoid high temperature inside the AC metal-enclosed switchgear body 1.

[0027] A plurality of support rods 17 are symmetrically fixedly installed on the top of the AC metal-enclosed switchgear body 1, and a same shielding shell 18 is fixedly installed on the top of the plurality of support rods 17. The shielding shell 18 can be installed through the set support rods 17. The set shielding shell 18 can provide sunshade and rain protection for the AC metal-enclosed switchgear body 1, preventing it from being exposed to rain and sun, which is beneficial to delaying its aging.

[0028] The dust filter box 15 is provided with a filter bag and a filter plate for filtering dust and impurities. The top of the dust filter box 15 is provided with a detachable box cover, and the top of the box cover is fixedly connected to an air intake pipe.

[0029] The base plate 3 is symmetrically provided with through holes, and the two through holes are adapted to the threaded tube 8 and the guide tube 10 . A plurality of foot pads are symmetrically fixedly mounted on the bottom of the base plate 3 .

[0030] An assembly frame is fixedly installed on one side of the mounting shell 4, and the assembly frame is fixedly connected to the fan 13. The AC metal-enclosed switchgear body 1 is provided with a heat dissipation port, and a mesh plate is arranged outside the heat dissipation port, and the mesh plate is fixedly connected to the AC metal-enclosed switchgear body 1.

[0031] It is worth noting that the AC metal-enclosed switchgear body in the utility model also includes components such as isolating switches, circuit breakers and earthing switches. The isolating switches, circuit breakers and earthing switches are sealed in SF6 gas at an atmospheric pressure. Long-term operation will not cause action blockage due to exposure and corrosion; the circuit breaker arc extinguishing chamber uses a vacuum arc extinguishing chamber to extinguish the arc; the circuit breaker cabinet has the advantages of miniaturization, intelligence, full sealing and full insulation; the configuration of five-protection mechanical interlocking makes the operation safer and more reliable; the built-in current transformer and sealed aviation connector meet the needs of power distribution automation; the single-phase grounding fault is automatically cut off. When a single-phase grounding fault occurs in the user's branch line, the boundary switch automatically opens and the faulty branch line is disconnected to ensure the safe operation of other branch users on the substation and feeder line; the phase-to-phase short-circuit fault is automatically disconnected. When a phase-to-phase short-circuit fault occurs in the user's branch line, the boundary circuit breaker immediately opens and the faulty line is disconnected. The faulty line is isolated, allowing other branch users on the feeder to quickly resume power supply; the fault point is quickly located, and after the user's branch line fault causes the boundary switch to operate, only the responsible user will be out of power, and the fault information can be actively reported, so that the power company can quickly identify the accident point and conduct on-site processing in time, so that the faulty line can resume power supply as soon as possible; monitor user loads, and the boundary circuit breaker can transmit detection data to the power management center to realize real-time monitoring of remote loads.

[0032] The working principle of the AC metal-enclosed switchgear provided by the utility model is as follows:

[0033] In this solution, an electric control switch is also provided for controlling the start and stop of the motor 11 and the fan 13, and the electric control switch is arranged on the equipment;

[0034] When it rains and the place where the AC metal-enclosed switchgear body 1 is placed is flooded, in order to prevent water from entering the AC metal-enclosed switchgear body 1, personnel can start the motor 11 to adjust the height. The running motor 11 will drive the bevel gear 12 to drive the screw 7 to rotate. When the rotating screw 7 rotates, the threaded barrel 8 will move downward, and the lifting plate 5 will contact the ground. As the screw 7 continues to rotate, the base plate 3 will be separated from the ground, and the AC metal-enclosed switchgear body 1 will also rise accordingly, so that the height adjustment can be achieved. After the AC metal-enclosed switchgear body 1 is adjusted to a safe height, the motor 11 can be turned off;

[0035] During the use of the AC metal-enclosed switchgear body 1, in order to prevent the internal high temperature from damaging the electrical components, the personnel can start the fan 13. The running fan 13 cooperates with the air outlet duct 14 to supply fresh air filtered by the dust filter box 15 into the AC metal-enclosed switchgear body 1, which can accelerate air circulation, facilitate ventilation and heat dissipation, and avoid high temperature inside the AC metal-enclosed switchgear body 1.

[0036] Compared with the related art, the AC metal-enclosed switchgear provided by the utility model has the following beneficial effects:

[0037] The utility model provides an AC metal-enclosed switch device. By means of an AC metal-enclosed switch device body 1, an insulating pad 2, a base plate 3, a mounting shell 4 and a rising plate 5, a novel AC metal-enclosed switch device can be formed. The height can be adjusted according to actual conditions to prevent water from entering the AC metal-enclosed switch device body 1 when it rains and the water level rises. By means of a driving regulator, the height of the rising plate 5 can be adjusted labor-savingly and conveniently after a simple operation, and the height adjustment can be achieved. By means of a heat dissipation mechanism, fresh air can be supplied into the AC metal-enclosed switch device body 1 after a simple operation, which can accelerate air circulation, facilitate ventilation and heat dissipation, and avoid high temperature inside the AC metal-enclosed switch device body 1. By means of a supporting rod 17, a shielding shell 18 can be installed. By means of the shielding shell 18, the AC metal-enclosed switch device body 1 can be shielded from the sun and rain, and prevented from being exposed to the rain and the sun, which is conducive to delaying its aging.

[0038] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. However, on the premise that technical personnel in this field understand the principle of the above-mentioned utility model, they can clearly know the details of its power mechanism, power supply system and control system.

[0039] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An AC metal-enclosed switchgear, characterized in that: include: AC metal-enclosed switchgear body; A plurality of insulating spacers, wherein the plurality of insulating spacers are fixedly mounted on the bottom of the AC metal-enclosed switchgear body; A base plate, the base plate being arranged below the plurality of insulating spacers; A mounting shell, wherein the mounting shell is arranged outside the AC metal-enclosed switchgear body, and the bottom of the mounting shell is fixedly connected to the base plate; An adjustable lifting plate, the lifting plate being arranged at the bottom of the base plate; A driving and adjusting mechanism for adjusting the height of the lifting plate is provided on the mounting shell.

2. The AC metal-enclosed switchgear according to claim 1, characterized in that: The driving and adjusting mechanism includes two mounting blocks, a screw, a threaded cylinder, a guide rod, a guide cylinder, a motor and two bevel teeth. The two mounting blocks are symmetrically and fixedly mounted on the inner walls on both sides of the mounting shell. The screw is rotatably mounted on one of the mounting blocks. The threaded cylinder is threadedly sleeved on the screw. The bottom end of the threaded cylinder passes through the base plate and is fixedly connected to the lifting plate. The guide rod is fixedly mounted on the other mounting block. The guide cylinder is slidably sleeved on the guide rod. The bottom end of the guide cylinder passes through the base plate and is fixedly connected to the lifting plate. The motor is fixedly mounted on one side of the mounting shell. The two bevel teeth are respectively fixedly mounted on the output shaft of the motor and on the top end of the screw, and the two bevel teeth are meshed with each other.

3. The AC metal-enclosed switchgear according to claim 1, characterized in that: The mounting shell is provided with a heat dissipation mechanism for supplying fresh air into the body of the AC metal-enclosed switchgear for heat dissipation. The heat dissipation mechanism includes a fan, an air outlet pipe, a dust filter box and a connecting pipe. The fan is arranged at one side of the mounting shell. The air outlet pipe is fixedly installed on the air outlet end of the fan. The air outlet end of the air outlet pipe passes through the mounting shell and is fixedly connected to the body of the AC metal-enclosed switchgear. The dust filter box is arranged at one side of the mounting shell. The connecting pipe is fixedly installed on the air inlet end of the fan. The air inlet end of the connecting pipe is fixedly connected to the dust filter box.

4. The AC metal-enclosed switchgear according to claim 1, characterized in that: A plurality of support rods are symmetrically fixedly installed on the top of the AC metal-enclosed switchgear body, and a same shielding shell is fixedly installed on the top ends of the plurality of support rods.

5. The AC metal-enclosed switchgear according to claim 3, characterized in that: The dust filter box is provided with a filter bag and a filter plate for filtering dust and impurities. The top of the dust filter box is provided with a detachable box cover, and the top of the box cover is fixedly connected with an air intake pipe.

6. The AC metal-enclosed switchgear according to claim 2, characterized in that: The base plate is symmetrically provided with through holes, two of the through holes are adapted to the threaded cylinder and the guide cylinder, and a plurality of foot pads are symmetrically fixedly mounted on the bottom of the base plate.

7. The AC metal-enclosed switchgear according to claim 3, characterized in that: An assembly frame is fixedly installed on one side of the installation shell, and the assembly frame is fixedly connected to the fan. The AC metal-enclosed switchgear body is provided with a heat dissipation port, and a mesh plate is arranged on the outer side of the heat dissipation port, and the mesh plate is fixedly connected to the AC metal-enclosed switchgear body.

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