A portable single-phase air bypass switch for live power distribution network

Patent metadata

Field	Value
Publication number	US-2016126038-A1
Application number	US-201414786140-A
Country	US
Kind code	A1
Filing date	Apr 21, 2014
Priority date	Apr 22, 2013
Publication date	May 5, 2016
Grant date	—

Abstract

The present invention provides a portable single-phase air bypass switch for live power distribution network, including a housing member, a positioning member, a conductive circuit member, a clutch member, a switch-closing member and switch-opening member. The housing member includes a main sleeve tube, an insulating sleeve pipe, a flange sleeve, and a bottom cover. The positioning member includes a positioning nut, positioning frames, and a positioning column. The conductive circuit member includes a conductive end cover, an upper conductive rod, a pressing sleeve, a coupling nut, a conductive sleeve pipe, a stationary contact, a movable contact, and a lower conductive rod. The clutch member includes a clutch, a clutch ring, and a clutch sleeve pipe. The switch-closing member includes a switch-closing energy-storage rod, a switch-closing energy-storage ring, a switch-closing spring, a switch-closing positioning pin, a switch-closing release ring, and an inner sleeve pipe. The switch-opening member include a small shaft, a switch-opening spring, a stopping block, a switch-opening energy-storage shaft, a connection rod, a switch-opening energy-storage pressing head, a switch-opening positioning pin, and a switch-opening release ring. The disclosed switch integrates fast-opening and fast-closing functionalities, and solves technical difficulties of instant arc-canceling on unloaded grid lines, power cables and mixed line and bypass line operations, the work coverage in live power distribution network can thus be improved with desired security.

First claim

What is claimed is:

1 . A portable single-phase air bypass switch for a live power distribution network, comprising: a housing member 1 , a positioning member 2 , a conductive circuit member 3 , a clutch member 4 , a switch-closing member 5 and switch-opening member 6 , wherein:
the housing member 1 includes a main sleeve tube 11 , an insulating sleeve pipe 12 , a flange sleeve 13 , and a bottom cover 14 ; the positioning member 2 includes a positioning nut 21 , positioning frames 22 , and a positioning column 23 ; the conductive circuit member 3 includes a conductive end cover 31 , an upper conductive rod 32 , a pressing sleeve 33 , a coupling nut 34 , a conductive sleeve pipe 35 , a stationary contact 36 , a movable contact 37 , and a lower conductive rod 38 ; the clutch member 4 includes a clutch 41 , a clutch ring 42 , and a clutch sleeve pipe 43 ; the switch-closing member 5 includes a switch-closing energy-storage rod 51 , a switch-closing energy-storage ring 52 , a switch-closing spring 53 , a switch-closing positioning pin 54 , a switch-closing release ring 55 , and an inner sleeve pipe 56 ; the switch-opening member 6 include a small shaft 61 , a switch-opening spring 62 , a stopping block 63 , a switch-opening energy-storage shaft 64 , a connection rod 65 , a switch-opening energy-storage pressing head 66 , a switch-opening positioning pin 67 , and a switch-opening release ring 68 ;
the insulating sleeve pipe 12 and an outer periphery of an upper part of the main sleeve tube 11 are connected with an interference fit; the conductive sleeve pipe 35 and an inner periphery of the upper part of the main sleeve tube 11 are connected with an interference fit; the coupling nut 34 is a nut with both internal screw threads and external screw threads; the coupling nut 34 has threaded connection with a lower end of the upper conductive rod 32 by the internal screw thread; the coupling nut 34 has threaded connection with an inner wall of an upper part of the conductive sleeve pipe 35 by the external screw thread; the positioning nut 21 has threaded connection with the upper conductive rod 32 and is located above the coupling nut 34 ; the pressing sleeve 33 has threaded connection with the upper conductive rod 32 and is located above the positioning nut 21 ; the flange sleeve 13 covers the pressing sleeve 33 from top to bottom and has threaded connection with an outer wall of an upper end of the insulating sleeve pipe 12 ; the upper conductive rod 32 is fixedly connected with the conductive end cover 31 ;
the positioning column 23 is coupled and connected to a lower part inside the main sleeve tube 11 , the bottom cover 14 is coupled and connected to a lower end of the main sleeve tube 11 , and is fixedly connected with the positioning column 23 ; a left side and a right side of a vertically waist portion of the positioning column 23 are each provided with a switch-closing positioning pin-hole and a switch-opening positioning pin-hole; the main sleeve tube 11 is configured to have a switch-closing positioning pin through-hole and a switch-opening positioning pin through-hole at corresponding locations of the switch-closing positioning pin-hole and the switch-opening positioning pin-hole in the positioning column 23 ; the switch-closing positioning pin 54 and the switch-opening positioning pin 67 respectively pass through the switch-closing positioning pin through-hole and the switch-opening positioning pin through-hole in the main sleeve tube 11 , and is movably located in the switch-closing positioning pin-hole and the switch-opening positioning pin-hole in the positioning column 23 ; the switch-closing release ring 23 is elastically connected with the switch-closing positioning pin 54 by torsion spring; the switch-opening release ring 68 is elastically connected with the switch-opening positioning pin 67 by torsion spring; a quantity of the positioning frames 22 is two, the two positioning frames 22 are respectively configured at a left side and a right side of the main sleeve tube 11 and are fixedly connected with the main sleeve tube 11 ; the stationary contact 36 has threaded connection with an inner wall of a lower end of the conductive sleeve pipe 35 ; the movable contact 37 is located underneath the stationary contact 36 ; the clutch member 4 is configured inside the conductive sleeve pipe 35 and is located underneath the upper conductive rod 32 ; the switch-closing spring 53 is configured inside the conductive sleeve pipe 35 ; the switch-closing spring 53 is located in between the clutch member 4 and the stationary contact 36 ;
the bottom cover 14 , the positioning column 23 , the movable contact 37 and the stationary contact 36 are configured to have vertical through-holes at lateral sides in left-right direction and in the center; the switch-closing energy-storage rod 51 passes through, sequentially from bottom to top, the through-holes at the lateral sides of the bottom cover 14 , the positioning column 23 , the movable contact 37 and the stationary contact 36 , and an upper end of the switch-closing energy-storage rod 51 is fixedly connected with the clutch 41 ; the switch-closing energy-storage ring 52 is fixedly mounted at a lower end of the switch-closing energy-storage rod 51 ; an upper end of the inner sleeve pipe 56 has threaded connection with the clutch sleeve pipe 43 ; a lower end of the inner sleeve pipe 56 has threaded connection with the movable contact 37 ;
an upper part of the small shaft 61 is coupled and connected inside the upper conductive rod 32 , middle and lower parts of the small shaft 61 has movable fit and connects with an inner chamber of the clutch 41 and inside an upper part of the inner sleeve pipe 56 ; the switch-opening spring is configured inside the inner sleeve pipe 56 , and an upper end of the switch-opening spring 62 contacts a lower end of the small shaft 61 ; a lower end of the switch-opening spring 62 contacts an upper end surface of the stopping block 63 ; a lower end of the stopping block 63 passes through a through-hole in the center of the movable contact 37 and has threaded connection with an upper end of the switch-opening energy-storage shaft 64 ; a lower end of the switch-opening energy-storage shaft 64 has threaded connection with an upper end of the connection rod 65 ; the connection rod 65 has movable fit and connects to the through-hole in the center of the positioning column 23 , a lower end of the connection rod 65 has threaded connection with the switch-opening energy-storage pressing head 66 ; and
a front lateral side of a lower part of the main sleeve tube 11 is configured to have a through-hole for passing through conductive cords; the lower conductive rod 38 is a hollow round tube; a first end of the lower conductive rod 38 is fixedly connected with the main sleeve tube 11 at where the through-hole for passing through conductive cords is located.

2 . The switch according to claim 1 , wherein: the main sleeve tube 11 of the housing member 1 is a whole piece hollow cylinder made of transparent insulating polycarbonate; the insulating sleeve pipe 12 is a whole piece hollow cylinder made of insulated polycarbonate, an inner diameter of the insulating sleeve pipe 12 is compatible with an outer diameter of the main sleeve tube 11 ; the outer wall of the upper end of the insulating sleeve pipe 12 is configured to have external screw threads; the flange sleeve 13 is a whole piece made of nylon; the flange sleeve 13 includes an upper plate, a main-body portion, and a ring portion; the upper plate of the flange sleeve 13 is a round-shaped plate, the center of the flange sleeve 13 is configured to have a vertical through-hole;

Assignees

• Chang Zhou Current Supply Company Of Jiangsu Electric Power Company
• Jiangsu Electric Power Co
• State Grid Corp China
• Chang Zhuo Current Supply Company of Jiangsu Electric Power Company

Inventors

• He Jianjun
• Xu Zhen
• Zhu Hui

Classifications

• H01H2205/002

  fixed to operating part · CPC title

• H01H3/3042 Primary

  using a torsion spring · CPC title

• H01H31/006

  adapted to be operated by a hot stick; Hot sticks therefor · CPC title

• H01H2235/01

  Spiral spring · CPC title

• H01H33/73 Primary

  wherein the break is in air at atmospheric pressure, e.g. in open air · CPC title