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CN-120545130-B - 40.5KV looped netowrk heavy current circuit breaker

CN120545130BCN 120545130 BCN120545130 BCN 120545130BCN-120545130-B

Abstract

The application relates to the field of circuit breakers, in particular to a 40.5kV ring network high-current circuit breaker which comprises a body and a mounting assembly, wherein the mounting assembly comprises a tightening strip, a sliding rod, an elastic piece I and a plurality of fixing bolts, a plurality of fixing holes are formed in the surface of the body at intervals, a slideway is formed in the surface of the body, the end part, far away from the slideway, of the sliding rod is connected to the surface of the tightening strip, one end of the elastic piece in the elastic direction is connected to the inner wall of the slideway, and the other end of the elastic piece in the elastic direction is connected to the rod surface of the sliding rod. According to the application, the abutting strip, the sliding rod, the elastic piece I and the fixing bolt are arranged, the fixing bolt is not easy to be influenced by the vibration of the power grid to generate tiny relative movement, the limiting stability of the fixing bolt in the fixing hole is ensured, the fastening force between the looped network high-current circuit breaker and the wall surface is improved, and therefore the use safety of the looped network high-current circuit breaker is improved.

Inventors

  • CHEN ZHIHAO
  • LI HAIBING
  • Zheng Zejing
  • ZHOU WEIYIN
  • CHEN KE
  • HUANG XUZHANG

Assignees

  • 黄华集团有限公司

Dates

Publication Date
20260508
Application Date
20250530

Claims (8)

  1. 1. A40.5 KV looped network high-current circuit breaker is characterized by comprising a body (1) and a mounting assembly (2), wherein the mounting assembly (2) comprises a tight supporting strip (21), a sliding rod (22), an elastic piece I (26) and a plurality of fixing bolts (27), a plurality of fixing holes (11) for enabling the ends of the fixing bolts (27) to penetrate are formed in the surface of the body (1) at intervals, the ends of the fixing bolts (27) penetrate through the fixing holes (11) and are screwed and fixed on a wall surface to form limit, a sliding way (12) for sliding the sliding rod (22) is formed in the surface of the body (1), the sliding direction of the sliding rod (22) and the axis of the fixing holes (11) are mutually perpendicular, the end part of the sliding rod (22) away from the sliding way (12) is connected to the surface of the tight supporting strip (21), the length direction of the tight supporting strip (21) and the arrangement direction of the fixing holes (11) are mutually parallel, one end of the elastic piece I (26) in the elastic direction is connected to the inner wall of the sliding way (12), the other end of the elastic piece I (26) in the elastic direction is connected to the sliding way (22) in the elastic direction, the sliding rod (22) is provided with an elastic piece (22) in the elastic direction, and the sliding way is close to the elastic piece (22) in the elastic direction, the air bag fixing device comprises an air bag fixing device body, and is characterized in that the surface of an abutting strip (21) and the surfaces of a body (1) clamp the two ends of a nut of a fixing bolt (27) to form a limit trend, the abutting strip (21) comprises an abutting portion (211) and an air bag portion (212), the abutting portion (211) is connected to the rod surface of a sliding rod (22), one side of the air bag portion (212) is connected to the surface of the abutting portion (211) facing a fixing hole (11), the other side of the air bag portion (212) and the surfaces of the body (1) can abut against the two ends of the nut of the fixing bolt (27) to form a limit trend, the abutting portion (211) is connected with an air inflation assembly (4), the air inflation assembly (4) comprises a plurality of air inflation pistons (43), a plurality of air inflation channels (2112) for enabling the air inflation pistons (43) to slide are arranged on the surface of the abutting portion (211) away from the air bag portion (212) at intervals, the sliding direction of the air bag pistons (43) and the axis of the fixing hole (11) are parallel to each other, and a plurality of air inflation channels (2112) are communicated with the inner cavities of the air bags (212).
  2. 2. The 40.5KV looped network high-current breaker according to claim 1, wherein the mounting assembly (2) further comprises a control strip (23), a control flow channel (13) for sliding the control strip (23) is formed in the inner wall of the slide way (12), the sliding direction of the control strip (23) and the arrangement direction of the fixing holes (11) are parallel to each other, the control strip (23) is located on one side of the sliding rod (22) close to the elastic piece I (26), and when the sliding rod (22) slides in the direction away from the fixing holes (11) and the control strip (23) slides in the direction close to the slide way (12), the end face of the control strip (23) protrudes out of the slide way (12) to be abutted against the rod face of the sliding rod (22) and limit the sliding rod (22) to be close to the fixing holes (11).
  3. 3. The 40.5KV looped network high-current breaker according to claim 2, wherein the installation component (2) further comprises a force application block (24) and a second elastic piece (25), a force application cavity (14) for enabling the force application block (24) to slide is formed in the surface of the body (1), the sliding direction of the force application block (24) and the sliding direction of the control strip (23) are parallel to each other, the force application cavity (14) is communicated with the control flow channel (13), one end of the force application block (24) is connected to the surface of the control strip (23), the other end of the force application block (24) protrudes out of the surface of the body (1), one end of the second elastic piece (25) in the elastic direction is connected to the inner wall of the control flow channel (13), the other end of the second elastic piece (25) in the elastic direction is connected to the surface of the control strip (23), and the second elastic piece (25) has a trend that the end of the control strip (23) protrudes out of the inner wall of the control strip (12) towards the direction close to the slide (12).
  4. 4. The 40.5KV looped network high-current breaker according to claim 1, wherein the inflation component (4) further comprises a thermal expansion and contraction block (41), a deformation cavity (2111) for deformation of the thermal expansion and contraction block (41) is formed in the surface of the abutting portion (211) facing away from the air bag portion (212), the deformation cavity (2111) is communicated with a plurality of inflation flow channels (2112), and when the thermal expansion and contraction block (41) is heated and expanded, the surface of the thermal expansion and contraction block (41) abuts against the end portion of the inner wall of the inflation piston (43) protruding out of the deformation cavity (2111) and drives the inflation piston (43) to slide towards the direction close to the inflation flow channels (2112).
  5. 5. The large current breaker of a 40.5KV looped network as claimed in claim 4, wherein the inflating assembly (4) further comprises a plurality of elastic pieces III (42), the elastic pieces III (42) are in one-to-one correspondence with the inflating pistons (43), one ends of the elastic pieces III (42) in the elastic direction are connected to the inner wall of the inflating flow channel (2112), the other ends of the elastic pieces III (42) in the elastic direction are connected to the surface of the inflating pistons (43), the elastic pieces III (42) have a tendency that the elastic force drives the inflating pistons (43) to slide towards the direction close to the deformation cavities (2111), and the end parts of the inflating pistons (43) protrude out of the inner wall of the deformation cavities (2111).
  6. 6. The large current breaker of a 40.5KV looped network as claimed in claim 5, wherein a guide surface (431) is arranged at the end part of the convex deformation cavity (2111) of the inflating piston (43), the guide surface (431) is in a circular arc convex shape, and the guide surface (431) can be abutted against the surface of the thermal expansion cold contraction block (41) and guide the inflating piston (43) to slide towards the direction close to the inflating runner (2112).
  7. 7. The 40.5KV looped network high-current circuit breaker according to claim 4, wherein the abutting part (211) is connected with a cooling component (5), the cooling component (5) comprises an elastic piece IV (52), a heat dissipation impeller (51) and a connecting rope (53), the heat dissipation impeller (51) is rotationally connected to the surface of the abutting part (211) facing the body (1), one end of the connecting rope (53) is connected to the rotating shaft of the heat dissipation impeller (51), the other end of the connecting rope (53) is connected to the surface of a thermal expansion and contraction block (41), one end of the elastic piece IV (52) in the elastic direction is connected to the surface of the abutting part (211), the other end of the elastic piece IV (52) in the elastic direction is connected to the rotating shaft of the heat dissipation impeller (51), the elastic piece IV (52) is provided with elastic force to drive the heat dissipation impeller (51) to rotate, the connecting rope (53) is wound on the outer peripheral surface of the heat dissipation impeller (51), and the connecting rope (53) between the heat dissipation impeller (51) and the rotating shaft is in a tightening trend.
  8. 8. The 40.5KV looped network high-current circuit breaker according to claim 1, wherein the body (1) is connected with a pressing component (3), the pressing component (3) comprises a plurality of pressing pistons (31) and a plurality of elastic pieces five (32), pressing cavities (15) for sliding the pressing pistons (31) are formed in the inner walls of the fixing holes (11), sliding directions of the pressing pistons (31) and sliding directions of the sliding rods (22) are parallel to each other, the elastic pieces five (32) are in one-to-one correspondence with the pressing pistons (31), one ends of the elastic pieces five (32) in the elastic force direction are connected to the inner walls of the pressing cavities (15), the other ends of the elastic pieces five (32) in the elastic force direction are connected to the inner walls of the pressing cavities (15), the elastic pieces five (32) have a trend of elastic force driving the pressing pistons (31) to slide towards the direction close to the fixing holes (11), and when the end portions of the fixing bolts (27) penetrate through the fixing holes (11) and are screwed and fastened to form the directions of the pressing pistons (27) close to the surfaces of the pressing pistons (31).

Description

40.5KV looped netowrk heavy current circuit breaker Technical Field The application relates to the field of circuit breakers, in particular to a 40.5kV ring network high-current circuit breaker. Background The looped network heavy current circuit breaker is mainly used in looped network power supply system, has the ability of breaking heavy current, can cut off the circuit rapidly when the circuit breaks down such as overload or short circuit to the safe operation of protection circuit and equipment has important effect to maintaining the stability and the reliability of electric power system. When the looped network heavy-current breaker operates, the looped network heavy-current breaker is influenced by power grid vibration to drive the bolts to generate tiny relative motion, so that friction between the bolts and a connected piece is counteracted, the bolts are loosened, the fastening force between the looped network heavy-current breaker and the installation position is reduced, and the use safety of the looped network heavy-current breaker is reduced. Disclosure of Invention In order to solve the problem of fastening force between the looped network high-current breaker and the installation position, the application provides a 40.5kV looped network high-current breaker. The application provides a 40.5kV ring network high-current breaker, which adopts the following technical scheme: The utility model provides a 40.5kV looped netowrk heavy current circuit breaker, includes body and installation component, installation component is including supporting tight strip, slide bar, elastic component one and a plurality of fixing bolt, body surface interval is equipped with a plurality of fixed orifices that supply fixing bolt tip to wear to establish, fixing bolt tip wears to establish the fixed orifices and screw thread to screw up and fix at the wall and form spacingly, the slide that supplies the slide bar to slide is offered on the body surface, the slip direction and the fixed orifices axis mutually perpendicular of slide bar, the slide bar is kept away from the end connection of slide at supporting tight strip surface, the length direction of supporting tight strip and the range direction of fixed orifices are parallel to each other, one end of elastic component one elasticity direction is connected at the slide inner wall, another end of elastic component one elasticity direction is connected at the slide bar face, elastic component one has elasticity to order about the slide bar towards the direction that is close to the fixed orifices, just support tight strip surface and body surface clamp fixing bolt nut both ends and form spacing trend. Through adopting above-mentioned technical scheme, an elastic force of elastic component drives the slide bar and slides towards the direction that is close to the fixed orifices, and support tight strip terminal surface orientation a plurality of fixed orifices, when looped netowrk heavy current circuit breaker installs, the body surface supports tight wall and forms the location, it overcomes an elastic force of elastic component and slides along the direction that the slide inner wall was kept away from the fixed orifices to drive the slide bar, support tight strip and keep away from the fixed orifices, the fixed orifices is worn to establish and screw thread tightening is fixed at the wall and is formed spacingly, realize the body fixed on the wall, loosen the slide bar, the support to the slide bar disappears, an elastic force of elastic component drives the slide bar and slides along the slide inner wall towards the direction that is close to the fixed orifices, support tight strip surface and body surface clamp fixing bolt nut both ends and form spacingly, realize spacing to the fixing bolt tip, fixing bolt is difficult for receiving the power grid vibration influence and produces tiny relative motion, guarantee fixing bolt's spacing stability in the fixed orifices, improve the fastening force between looped netowrk heavy current circuit breaker and the wall, thereby promote the security to looped netowrk heavy current circuit breaker uses. Optionally, the installation component still includes the control strip, the control flow channel that supplies the control strip to slide is seted up to the slide inner wall, the slip direction of control strip and the range direction of fixed orifices are parallel to each other, the control strip is located the slide bar and is close to one side of elastic component one, works as the slide bar slides towards the direction of keeping away from the fixed orifices, and when the control strip slides towards the direction of being close to the slide, the terminal surface butt slide bar face of control strip protrusion slide and spacing slide bar are close to the fixed orifices. Through adopting above-mentioned technical scheme, before fixing bolt screws up, the user drives the slide bar along slide inner wall towards keeping a