WO2021001901A1 - Dispositif d'actionnement pour commutateur - Google Patents

Dispositif d'actionnement pour commutateur Download PDF

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Publication number
WO2021001901A1
WO2021001901A1 PCT/JP2019/026157 JP2019026157W WO2021001901A1 WO 2021001901 A1 WO2021001901 A1 WO 2021001901A1 JP 2019026157 W JP2019026157 W JP 2019026157W WO 2021001901 A1 WO2021001901 A1 WO 2021001901A1
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WO
WIPO (PCT)
Prior art keywords
pair
spring
support member
closing
guide groove
Prior art date
Application number
PCT/JP2019/026157
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English (en)
Japanese (ja)
Inventor
晃輔 色見
正治 清水
丸島　敬
網田　芳明
Original Assignee
株式会社東芝
東芝エネルギーシステムズ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社東芝, 東芝エネルギーシステムズ株式会社 filed Critical 株式会社東芝
Priority to PCT/JP2019/026157 priority Critical patent/WO2021001901A1/fr
Priority to CN201980097976.6A priority patent/CN114008732A/zh
Priority to JP2021529577A priority patent/JP7176116B2/ja
Publication of WO2021001901A1 publication Critical patent/WO2021001901A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/40—Power arrangements internal to the switch for operating the driving mechanism using spring motor

Definitions

  • An embodiment of the present invention relates to an operating device for a switch.
  • a pair of compression springs arranged in parallel may be used as a power source for moving the movable electrode from the cutoff position to the closing position.
  • the pair of compression springs rotatably abut against a single support member, and are simultaneously compressed by a power storage motor or the like via the support member to obtain an urging force.
  • the time required for releasing the spring force varies between the pair of compression springs. May occur.
  • the compression spring buckles the compression spring may come into contact with a member around the compression spring, and the compression spring may not be smoothly restored (extended). Then, the closing operation becomes unstable, and the closing time may not be within the standard.
  • the problem to be solved by the present invention is to provide an operating device for a switch capable of smooth closing operation.
  • the operating device for the switch has a pair of compression springs, a compression spring support mechanism, and at least one guided portion.
  • the pair of compression springs generate an urging force for moving the movable electrode of the switch, which is movable between the closing position in contact with the fixed electrode of the switch and the blocking position separated from the fixed electrode, to the closing position.
  • the pair of compression springs are arranged in parallel in a predetermined direction.
  • the compression spring support mechanism includes a first support member, a second support member, and a spring accommodating portion.
  • the first support member collectively supports the first end of each of the pair of compression springs as a movable end.
  • the second support member supports the second end of each of the pair of compression springs as a fixed end.
  • the spring accommodating portion is formed with at least one guide groove extending in the expansion / contraction direction of the pair of compression springs.
  • At least one guided portion has a first contact member and a second contact member. The first contact member and the second contact member are supported by the first support member. The first contact member and the second contact member are arranged side by side in the expansion / contraction direction of the pair of compression springs in at least one guide groove. The first contact member and the second contact member are accessible to the edge of at least one guide groove.
  • FIG. 2 is a cross-sectional view taken along the line II-II of FIG.
  • the bottom view which shows the pair of throwing springs which concerns on 1st Embodiment.
  • FIG. 2 is a cross-sectional view taken along the line IV-IV of FIG.
  • the perspective view which shows the input spring part which concerns on 1st Embodiment.
  • the perspective view which shows the guided part which concerns on 1st Embodiment.
  • FIG. 2 is a cross-sectional view taken along the line VII-VII of FIG.
  • the front view which shows the vicinity of the upper end part of the closing spring which concerns on 1st Embodiment.
  • the front view which shows the vicinity of the upper end part of the closing spring which concerns on 2nd Embodiment.
  • the front view which shows the vicinity of the lower end part of the closing spring which concerns on 2nd Embodiment.
  • FIG. 1 is a front view showing an operating device for a switch according to the first embodiment.
  • the switch operation device 1 is an operation device for opening and closing a switch 100 such as a gas circuit breaker.
  • the switch 100 includes a fixed electrode 101 and a movable electrode 102 that can come into contact with the fixed electrode 101.
  • the switch operating device 1 has a shutoff position in which the movable electrode 102 is separated from the fixed electrode 101 to open the switch 100, and a closing position in which the movable electrode 102 contacts the fixed electrode 101 to close the switch 100.
  • the movable electrode 102 is moved between.
  • the switch operation device 1 includes a frame 2, a shutoff spring portion 3, a shutoff link mechanism 4, a closing spring portion 5, a closing link mechanism 6, a power storage mechanism 7 (see FIG. 2), and a drive rod 8. , Equipped with.
  • the frame 2 is provided as a housing of the switch operating device 1.
  • the cutoff spring portion 3 generates an urging force for moving the movable electrode 102 of the switch 100 from the closing position to the cutoff position.
  • the cutoff link mechanism 4 links the cutoff spring portion 3 and the drive rod 8.
  • the closing spring portion 5 generates an urging force that moves the movable electrode 102 of the switch 100 from the shutoff position to the closing position.
  • the closing link mechanism 6 links the closing spring portion 5 and the drive rod 8.
  • the energy storage mechanism 7 (see FIG. 2) stores the spring force (elastic energy) of the input spring portion 5.
  • the drive rod 8 links the movable electrode 102 with the blocking link mechanism 4 and the closing link mechanism 6.
  • the + X direction, the ⁇ X direction, the + Y direction, the ⁇ Y direction, the + Z direction, and the ⁇ Z direction are defined.
  • the ⁇ X direction is opposite to the + X direction.
  • the + Y direction and the ⁇ Y direction are directions orthogonal to the X direction.
  • the ⁇ Y direction is opposite to the + Y direction.
  • the + Z direction and the ⁇ Z direction are directions orthogonal to the X direction and the Y direction.
  • the ⁇ Z direction is opposite to the + Z direction.
  • Z direction When the + Z direction and the -Z direction are not distinguished, it is simply referred to as "Z direction".
  • the Z direction is the vertical direction
  • the X and Y directions are the horizontal directions.
  • the + Z direction is vertically upward and the ⁇ Z direction is vertically downward.
  • the frame 2 houses the main parts of each of the blocking link mechanism 4 and the input link mechanism 6.
  • the frame 2 supports the blocking spring portion 3 and the closing spring portion 5 from below.
  • the frame 2 is fixed to the tank or the like of the switch 100.
  • the blocking spring portion 3 is arranged in the + Z direction of the frame 2.
  • the cutoff spring portion 3 mainly includes a cutoff spring 11 which is a compression coil spring.
  • the blocking spring 11 is arranged so that the expansion and contraction directions coincide with the Z direction.
  • the lower end of the blocking spring 11 is supported by the frame 2 as a fixed end.
  • the upper end of the blocking spring 11 is provided as a movable end.
  • the cutoff link mechanism 4 includes a cutoff spring rod 21 and a main lever 22.
  • the cutoff spring rod 21 is inserted inside the cutoff spring 11.
  • the first end of the cutoff spring rod 21 is connected to the upper end of the cutoff spring 11.
  • the second end of the shutoff spring rod 21 is connected to the main lever 22.
  • the main lever 22 is rotatably supported by the frame 2.
  • the drive rod 8 is directly or indirectly connected to the main lever 22. The drive rod 8 will be described later.
  • the blocking spring rod 21 is displaced in the Z direction in conjunction with the expansion and contraction of the blocking spring 11. Specifically, the blocking spring rod 21 is displaced in the + Z direction when the blocking spring 11 is extended, and is displaced in the ⁇ Z direction when the blocking spring 11 is contracted.
  • the main lever 22 rotates in the arrow A1 direction and the arrow A2 direction in conjunction with the displacement of the blocking spring rod 21 in the Z direction. Specifically, the main lever 22 rotates in the arrow A1 direction when the blocking spring rod 21 is displaced in the + Z direction, and rotates in the arrow A2 direction when the blocking spring rod 21 is displaced in the ⁇ Z direction.
  • FIG. 2 is a cross-sectional view taken along the line II-II of FIG.
  • the closing spring portion 5 is arranged in the + Z direction of the frame 2.
  • the closing spring portion 5 includes a pair of closing springs 31 (compression springs), a closing spring supporting mechanism 40 (compression spring supporting mechanism), and a pair of guided portions 70.
  • FIG. 3 is a bottom view showing a pair of closing springs according to the first embodiment.
  • the pair of input springs 31 are compression coil springs, respectively.
  • the pair of input springs 31 have the same specifications. Specifically, the pair of input springs 31 have the same number of turns, natural length, inner and outer diameters of the coil, winding direction, and spring constant.
  • Each input spring 31 is arranged so that the expansion / contraction direction coincides with the Z direction.
  • the pair of input springs 31 are arranged in parallel in the X direction. Specifically, the pair of input springs 31 are arranged so that their central axes are parallel to each other and their both ends overlap each other when viewed from the X direction.
  • the pair of input springs 31 are arranged line-symmetrically with respect to a virtual line parallel to their respective central axes.
  • the lower end of each of the pair of input springs 31 is provided as a fixed end.
  • the upper ends of the pair of input springs 31 are provided as movable ends.
  • the seat surface 32 is a smooth surface formed by grinding the wire forming the closing spring 31.
  • the closing spring 31 may be a closed-ended coil spring or an open-ended coil spring.
  • the input spring support mechanism 40 includes an upper support member 41 (first support member), a lower support member 51 (second support member), and a spring accommodating portion 61.
  • the upper support member 41 collectively supports the upper ends of each of the pair of input springs 31.
  • the upper support member 41 includes an upper support plate 42, a pair of upper positioning spacers 43, a pair of upper guide spacers 44, and a shaft 45.
  • the upper support plate 42 is arranged in the + Z direction of the pair of input springs 31.
  • the upper support plate 42 is formed in a flat plate shape with the front and back surfaces facing the Z direction.
  • the upper support plate 42 is formed in a rectangular shape with the X direction as the longitudinal direction when viewed from the Z direction.
  • the upper support plate 42 overlaps the entire pair of input springs 31 when viewed from the Z direction.
  • One pair of upper positioning spacers 43 is provided for each input spring 31.
  • the pair of upper positioning spacers 43 have substantially the same configuration as each other.
  • the upper positioning spacer 43 projects from the upper support plate 42 toward the closing spring 31 side ( ⁇ Z direction), respectively.
  • the upper positioning spacer 43 is inserted inside the upper end portion of the closing spring 31.
  • the upper positioning spacer 43 is formed in a cylindrical shape coaxial with the closing spring 31.
  • the outer diameter of the upper positioning spacer 43 is slightly smaller than the inner diameter of the input spring 31.
  • the upper positioning spacer 43 positions the upper end portion of the closing spring 31 in the radial direction by bringing the outer peripheral surface into contact with the closing spring 31 from the inside.
  • the upper positioning spacer 43 may be formed in a columnar shape.
  • One pair of upper guide spacers 44 is provided for each input spring 31.
  • the pair of upper guide spacers 44 have substantially the same configuration as each other.
  • the upper guide spacer 44 is arranged on the closing spring 31 side of the upper support plate 42.
  • the upper guide spacer 44 is interposed between the input spring 31 and the upper support plate 42.
  • the upper guide spacer 44 is formed in a flat plate shape with the front and back surfaces facing the Z direction. The entire upper guide spacer 44 overlaps the upper support plate 42 when viewed from the Z direction.
  • a through hole 44a is formed in the upper guide spacer 44.
  • the upper positioning spacer 43 is inserted into the through hole 44a of the upper guide spacer 44.
  • the through hole 44a is formed in a shape corresponding to the outer shape of the upper positioning spacer 43.
  • the through hole 44a is formed in a circular shape having an inner diameter coaxial with the upper positioning spacer 43 and substantially equal to the outer diameter of the upper positioning spacer 43.
  • the upper surface of the upper guide spacer 44 faces the lower surface of the upper support plate 42.
  • the upper guide spacer 44 is fixed to the upper support plate 42.
  • the upper guide spacer 44 is fastened to the upper support plate 42.
  • the lower surface of the upper guide spacer 44 is in surface contact with the seat surface 32 at the upper end of the closing spring 31.
  • the shaft 45 is arranged in the + Z direction of the upper support plate 42.
  • the shaft 45 is formed in a columnar shape and extends in the X direction.
  • the shaft 45 projects from the pair of input springs 31 and the upper support plate 42 on both sides in the X direction.
  • the shaft 45 is arranged so that the central axis intersects the central axis of the pair of input springs 31.
  • the shaft 45 is fixed to the upper support plate 42.
  • the shaft 45 is welded to the upper surface of the upper support plate 42.
  • the lower support member 51 supports the lower ends of each of the pair of input springs 31 as fixed ends.
  • the lower support member 51 includes a pair of lower positioning spacers 52 and a pair of lower guide spacers 53.
  • One pair of lower positioning spacers 52 is provided for each input spring 31.
  • the pair of lower positioning spacers 52 have substantially the same configuration as each other.
  • the lower positioning spacer 52 projects from the upper surface of the frame 2 toward the closing spring 31 side (+ Z direction).
  • the lower positioning spacer 52 is inserted inside the lower end portion of the closing spring 31.
  • the lower positioning spacer 52 is formed in a cylindrical shape coaxial with the closing spring 31.
  • the outer diameter of the lower positioning spacer 52 is slightly smaller than the inner diameter of the input spring 31.
  • the lower positioning spacer 52 positions the lower end portion of the closing spring 31 in the radial direction by bringing the outer peripheral surface into contact with the closing spring 31 from the inside.
  • the lower positioning spacer 52 may be formed in a columnar shape.
  • a pair of lower guide spacers 53 is provided for each input spring 31.
  • the pair of lower guide spacers 53 have substantially the same configuration as each other.
  • the lower guide spacer 53 is arranged on the closing spring 31 side of the frame 2.
  • the lower guide spacer 53 is interposed between the closing spring 31 and the frame 2.
  • the lower guide spacer 53 is formed in a flat plate shape with the front and back surfaces facing the Z direction.
  • a through hole 53a is formed in the lower guide spacer 53.
  • the lower positioning spacer 52 is inserted through the through hole 53a of the lower guide spacer 53.
  • the through hole 53a is formed in a shape corresponding to the outer shape of the lower positioning spacer 52.
  • the through hole 53a is formed in a circular shape having an inner diameter coaxial with the lower positioning spacer 52 and substantially equal to the outer diameter of the lower positioning spacer 52.
  • the lower surface of the lower guide spacer 53 faces the upper surface of the frame 2.
  • the lower guide spacer 53 is placed directly on the frame 2.
  • the upper surface of the lower guide spacer 53 is in surface contact with the seat surface 32 at the lower end of the closing spring 31.
  • FIG. 4 is a cross-sectional view taken along the line IV-IV of FIG.
  • the outer edge of the lower guide spacer 53 includes an arc portion 54 and a protruding portion 55 projecting outward in the radial direction from the arc portion 54.
  • the arc portion 54 extends about the central axis of the lower positioning spacer 52.
  • the arc portion 54 extends over an angle range of 180 ° or more.
  • the protruding portions 55 are connected to both ends of the arc portion 54.
  • the protruding portion 55 projects along the X direction. Specifically, the projecting portion 55 projects in a direction in which the pair of lower guide spacers 53 are separated from each other.
  • the protruding portion 55 is formed in a rectangular shape.
  • FIG. 5 is a perspective view showing a closing spring portion according to the first embodiment.
  • the spring accommodating portion 61 accommodates a pair of closing springs 31.
  • the spring accommodating portion 61 includes a pair of guide walls 62.
  • the pair of guide walls 62 are arranged so as to sandwich the pair of input springs 31 in the X direction.
  • the pair of guide walls 62 are formed plane-symmetrically with respect to the virtual YZ plane.
  • Each guide wall 62 stands on the upper surface of the frame 2.
  • Each guide wall 62 is fixed to the frame 2. For example, each guide wall 62 is welded to the frame 2.
  • the guide wall 62 includes a main wall portion 63 and a pair of side wall portions 64 extending from the main wall portion 63.
  • the main wall portion 63 is formed in a flat plate shape with the front and back surfaces facing the X direction.
  • the main wall portion 63 extends in the + Z direction from the upper surface of the frame 2 with a constant width when viewed from the X direction.
  • the pair of side wall portions 64 extend from both side edges of the main wall portion 63 in the Y direction toward the pair of input springs 31.
  • the pair of side wall portions 64 extend from the entire side edges of the main wall portion 63.
  • the pair of side wall portions 64 extend orthogonally to the main wall portion 63.
  • the guide wall 62 is arranged so as to surround the end portion of the upper support plate 42 in the X direction.
  • the main wall portion 63 faces the entire short side of the upper support plate 42 when viewed from the Z direction.
  • the pair of side wall portions 64 face the end portions of the long sides of the upper support plate 42 when viewed from the Z direction.
  • the guide wall 62 restricts the movement of the upper support plate 42 in the X direction and the Y direction while allowing the movement in the Z direction.
  • the lower end portion of the guide wall 62 is arranged so as to surround the protruding portion 55 of the outer edge of the lower guide spacer 53 (see also FIG. 4). The guide wall 62 is locked to the protruding portion 55 on the outer edge of the lower guide spacer 53 to regulate the rotation of the lower guide spacer 53.
  • a guide groove 65 extending in the Z direction is formed in the main wall portion 63.
  • the guide groove 65 extends with a constant width when viewed from the X direction. That is, the edges 66 on both sides of the guide groove 65 in the Y direction extend linearly in parallel with each other.
  • the pair of edges 66 of the guide groove 65 extend in the Y direction at equal intervals with respect to the central axis of the pair of input springs 31 when viewed from the X direction.
  • the pair of edges 66 of the guide groove 65 overlap each other when viewed from the Y direction.
  • the guide groove 65 opens in the + Z direction at the upper end edge of the main wall portion 63.
  • the shaft 45 of the upper support member 41 is inserted through the guide groove 65.
  • One pair of guided portions 70 is provided for each guide groove 65 of each pair of guide walls 62.
  • the pair of guided portions 70 have substantially the same configuration as each other.
  • the guided portion 70 is arranged at a position where it cannot be displaced relative to the upper support member 41.
  • the guided portion 70 includes a lower roller 71 (first contact member) and an upper roller 72 (second contact member) arranged side by side in the Z direction in the guide groove 65.
  • the lower roller 71 is provided so as to be displaceable in the guide groove 65 in the Z direction.
  • the lower roller 71 is rotatably supported by the end of the shaft 45.
  • the lower roller 71 is attached to the shaft 45 via a bearing.
  • the lower roller 71 is rotatably provided around an axis extending in the X direction.
  • the lower roller 71 is rollable or slidable on the edge 66 of the guide groove 65.
  • the lower roller 71 contacts the edge 66 of the guide groove 65 in the Y direction.
  • FIG. 6 is a perspective view showing a guided portion according to the first embodiment.
  • a constricted portion 73 is formed on the outer peripheral surface of the lower roller 71.
  • the constricted portion 73 extends over the entire circumference of the lower roller 71.
  • the outer diameter of the bottom of the constricted portion 73 is formed to be smaller than the width of the guide groove 65.
  • the edges 66 of the guide groove 65 are inserted into the inside of the constricted portion 73 from both sides in the Y direction.
  • the lower roller 71 is formed so as to be lockable in the X direction with respect to the edge 66 of the guide groove 65.
  • the outer diameter of the bottom of the constricted portion 73 may match the width of the guide groove 65, and the lower roller 71 may be formed so as to be in constant contact with the pair of edges 66 of the guide groove 65.
  • the upper roller 72 is provided so as to be displaceable in the guide groove 65 in the Z direction.
  • the upper roller 72 is arranged above the lower roller 71.
  • the upper roller 72 is arranged at a distance smaller than the radius of the lower roller 71 with respect to the lower roller 71.
  • the upper roller 72 is rotatably supported by the shaft 45 via the bracket 74.
  • the upper roller 72 is attached to the bracket 74 via a bearing.
  • the bracket 74 is fixed to the upper part of the shaft 45.
  • the bracket 74 is detachably fastened to the shaft 45.
  • the upper roller 72 is rotatably provided around an axis extending in the X direction.
  • the upper roller 72 is rollable or slidable on the edge 66 of the guide groove 65.
  • the upper roller 72 comes into contact with the edge 66 of the guide groove 65 in the Y direction.
  • the upper roller 72 is formed in the same manner as the lower roller 71. That is, the outer diameter of the bottom portion of the constricted portion 73 of the upper roller 72 coincides with the outer diameter of the constricted portion 73 of the lower roller 71.
  • the upper roller 72 is formed so as to be lockable in the X direction with respect to the edge 66 of the guide groove 65.
  • FIG. 7 is a cross-sectional view taken along the line VII-VII of FIG.
  • the closing spring portion 5 further includes a rotation restricting structure 80.
  • the rotation regulation structure 80 includes an upper rotation regulation structure 81 that regulates the rotation of the closing spring 31 with respect to the upper support member 41 in the winding direction, and a lower rotation regulation structure 82 that regulates the rotation of the closing spring 31 with respect to the lower support member 51 in the winding direction.
  • the term "spring winding direction" used in the present embodiment is both directions that orbit around the central axis of the spring.
  • the upper rotation restricting structure 81 includes a pair of upper pins 83 (first convex portion and second convex portion) protruding from the upper support member 41 toward the input spring 31 side.
  • One pair of upper pins 83 is provided for each input spring 31.
  • the pair of upper pins 83 have substantially the same configuration as each other.
  • the upper pin 83 projects in the ⁇ Z direction from the lower surface of the upper guide spacer 44.
  • the upper pin 83 is provided as a separate member from the upper guide spacer 44, and is press-fitted into the upper guide spacer 44.
  • the upper pin 83 is formed in a columnar shape.
  • the height of the upper pin 83 is less than half the outer diameter of the wire of the input spring 31.
  • the upper pin 83 is arranged at a position overlapping the strand of the closing spring 31 when viewed from the Z direction.
  • the upper pin 83 is made in contact with the end 33 of the wire of the closing spring 31.
  • the upper pin 83 regulates the rotation of the closing spring 31 in the winding direction by contacting the end 33 of the wire of the closing spring 31.
  • the lower rotation restricting structure 82 includes a pair of lower pins 84 (first convex portion and second convex portion) protruding from the lower support member 51 toward the input spring 31 side.
  • One pair of lower pins 84 is provided for each input spring 31.
  • the pair of lower pins 84 have substantially the same configuration as each other.
  • the lower pin 84 projects in the + Z direction from the upper surface of the lower guide spacer 53.
  • the lower pin 84 is provided as a separate member from the lower guide spacer 53, and is press-fitted into the lower guide spacer 53.
  • the lower pin 84 is formed in a columnar shape.
  • the height of the lower pin 84 is less than half the outer diameter of the wire of the input spring 31.
  • the lower pin 84 is arranged at a position overlapping the strand of the closing spring 31 when viewed from the Z direction.
  • the lower pin 84 is made contactable with the end 33 of the wire of the closing spring 31.
  • the lower pin 84 regulates the rotation of the closing spring 31 in the winding direction by coming into contact with the end 33 of the wire of the closing spring 31.
  • the closing link mechanism 6 includes a pair of closing links 91, a pair of closing levers 92, a camshaft 93, and a closing cam 94.
  • One pair of input links 91 is provided for each end of the shaft 45 of the upper support member 41.
  • the pair of input links 91 have substantially the same configuration as each other.
  • the closing link 91 is arranged outside the frame 2 and the spring accommodating portion 61.
  • the first end of the input link 91 is connected to the end of the shaft 45.
  • the second end of the charging link 91 is connected to the charging lever 92.
  • One pair of charging levers 92 is provided for each charging link 91.
  • the pair of input levers 92 have substantially the same configuration as each other.
  • the closing lever 92 is arranged outside the frame 2 and the spring accommodating portion 61.
  • the pair of insertion levers 92 are fixedly supported at both ends of the camshaft 93.
  • the camshaft 93 is rotatably supported by the frame 2 via a bearing or the like.
  • a closing cam 94 is fixed to the middle portion of the camshaft 93.
  • a drive rod 8 is connected to the closing cam 94.
  • the first end portion of the input link 91 moves up and down in conjunction with the displacement of the upper support member 41 in the Z direction.
  • the first end of the closing link 91 is displaced in the + Z direction when the upper support member 41 is displaced in the + Z direction due to the extension of the pair of closing springs 31, and the upper portion is displaced in the + Z direction due to the contraction of the pair of closing springs 31.
  • the support member 41 is displaced in the ⁇ Z direction, it is displaced in the ⁇ Z direction.
  • the closing lever 92 rotates in the direction of arrow B1 and the direction of arrow B2 in conjunction with the displacement of the first end of the closing link 91 in the Z direction.
  • the closing lever 92 rotates in the direction of arrow B1 when the first end of the closing link 91 is displaced in the + Z direction, and in the direction of arrow B2 when the first end of the closing link 91 is displaced in the ⁇ Z direction.
  • the closing cam 94 rotates in the same direction as the closing lever 92 in conjunction with the rotation of the closing lever 92.
  • the drive rod 8 is connected to the movable electrode 102 at the first end portion, and is connected to the main lever 22 and the closing cam 94 on the second end portion side of the first end portion.
  • the drive rod 8 is always connected to the main lever 22 and is detachably connected to the closing cam 94.
  • the drive rod 8 moves the movable electrode 102 from the closing position to the blocking position when the main lever 22 rotates in the direction of arrow A1.
  • the connection between the drive rod 8 and the closing cam 94 is released, and the closing cam 94 does not rotate.
  • the drive rod 8 moves the movable electrode 102 from the cutoff position to the closing position when the closing cam 94 rotates in the direction of arrow B1.
  • the drive rod 8 rotates the main lever 22 in the direction of arrow A2 to store the spring force of the shutoff spring 11.
  • the energy storage mechanism 7 is a drive source that stores the spring force of the pair of input springs 31.
  • the energy storage mechanism 7 includes, for example, a motor, a chain, and the like.
  • the energy storage mechanism 7 is directly or indirectly connected to the camshaft 93 of the closing link mechanism 6.
  • the energy storage mechanism 7 rotates the camshaft 93 in the direction of rotating the closing lever 92 in the direction of arrow B2 (see FIG. 1) based on a command from the switch 100 or the like.
  • the energy storage mechanism 7 compresses the pair of input springs 31 via the input link 91 and the upper support member 41 by rotating the input lever 92 in the direction of arrow B2, and stores the spring force of the pair of input springs 31. To do.
  • the blocking spring portion 3 or the blocking link mechanism 4 is linked with a locking mechanism for locking the blocking spring 11 in a contracted state.
  • the closing spring portion 5 or the closing link mechanism 6 is linked with a locking mechanism for locking the pair of closing springs 31 in a contracted state.
  • the locking mechanism for shutting off and the locking mechanism for turning on include, for example, a solenoid, and release the lock based on a command from the switch 100 or the like.
  • the operation of the switch operating device 1 of the present embodiment will be described.
  • the shutoff operation will be described.
  • the lock mechanism for shutoff releases the lock.
  • the spring force of the stored breaking spring 11 is released and transmitted to the movable electrode 102 via the breaking link mechanism 4 and the drive rod 8.
  • the movable electrode 102 moves to the blocking position and the switch 100 is in the open pole state.
  • the spring force accumulating operation of the closing spring 31 after the breaking operation will be described.
  • the energy storage mechanism 7 is driven, and the spring force of the pair of charging springs 31 is stored via the closing link mechanism 6.
  • the switch operating device 1 is shut off.
  • the spring force of the closing spring 31 is stored, the connection between the drive rod 8 and the closing lever 92 is released, and the drive rod 8, the breaking link mechanism 4 and the breaking spring 11 do not operate.
  • the loading operation will be explained.
  • a closing command is issued from the switch 100 in the shutoff state of the switch operating device 1
  • the locking mechanism for closing releases the lock.
  • the spring force of the pair of stored charging springs 31 is released and transmitted to the movable electrode 102 via the charging link mechanism 6 and the drive rod 8.
  • the movable electrode 102 moves to the closing position and the switch 100 is closed.
  • the spring force of the pair of released springs 31 is transmitted to the cutoff link mechanism 4 via the closing link mechanism 6 and the drive rod 8.
  • the spring force of the cutoff spring 11 is stored.
  • both the lower roller 71 and the upper roller 72 of the guided portion 70 supported by the upper support member 41 can come into contact with the edge 66 of the guide groove 65.
  • the lower roller 71 and the upper roller 72 are always maintained in a state of being aligned in the extending direction (that is, the Z direction) of the guide groove 65.
  • the upper support member 41 it is possible to prevent the upper support member 41 from tilting when the pair of closing springs 31 are compressed during the energy accumulation operation of the closing spring 31. Therefore, since the pair of closing springs 31 contract evenly without buckling, the time required for releasing the spring force becomes uniform between the pair of closing springs 31. Therefore, it is possible to provide the switch operating device 1 capable of smooth closing operation. Further, it is possible to prevent the closing spring 31 from breaking due to the closing of the closing spring 31 and repeated contact with the spring accommodating portion 61.
  • the lower roller 71 and the upper roller 72 are rollable or slidable on the edge 66 of the guide groove 65.
  • the guided portion 70 comes into contact with the edge 66 of the guide groove 65 at two points in the Z direction. Therefore, the sliding resistance between the guided portion 70 and the edge 66 of the guide groove 65 can be reduced as compared with the configuration in which the contact portion between the guided portion and the edge of the guide groove extends in the Z direction. .. Therefore, since the guided portion 70 can be smoothly displaced with respect to the spring accommodating portion 61, the displacement of the pair of input springs 31 when the spring force is released can be stabilized. Therefore, it is possible to stabilize the closing operation of the switch operating device 1.
  • the pair of guide grooves 65 are provided on both sides in the X direction with respect to the closing spring 31.
  • One guided portion 70 is provided for each guide groove 65. According to this configuration, the force to buckle in each of the pair of input springs 31 can be evenly received by the pair of guided portions 70. Therefore, the buckling of the pair of input springs 31 can be suppressed more reliably.
  • the lower roller 71 and the upper roller 72 come into contact with the edge 66 of the guide groove 65 in the Y direction. According to this configuration, it is possible to prevent the upper roller 72 from being displaced in the Y direction with respect to the lower roller 71. Therefore, the upper support member 41 is prevented from tilting when viewed from the X direction.
  • the upper support member 41 (shaft 45) is connected to the charging link 91 on both sides in the X direction with respect to the pair of charging springs 31. Therefore, the inclination of the upper support member 41 when viewed from the Y direction is less likely to occur than the inclination when viewed from the X direction. In other words, the upper support member 41 is easily tilted when viewed from the X direction. Therefore, by suppressing the upper support member 41 from tilting when viewed from the X direction, the buckling of the pair of input springs 31 can be effectively suppressed.
  • the lower roller 71 and the upper roller 72 are formed so as to be lockable in the X direction with respect to the edge 66 of the guide groove 65. According to this configuration, the displacement of the lower roller 71 and the upper roller 72 in the X direction is restricted, so that the shake of the upper support member 41 in the X direction can be suppressed. Therefore, it is possible to stabilize the displacement of the pair of closing springs 31 when releasing the spring force. Therefore, it is possible to stabilize the closing operation of the switch operating device 1.
  • the pair of input springs 31 are arranged line-symmetrically with respect to the virtual line parallel to each central axis. According to this configuration, the distribution of the load of the pair of input springs 31 applied to the upper support member 41 can be provided with rotational symmetry. As a result, it is possible to prevent the upper support member 41 from tilting with respect to the spring accommodating portion 61 and buckling at least one of the pair of input springs 31. Therefore, it is possible to stabilize the closing operation of the switch operating device 1.
  • a frictional force and a force in the winding direction due to the torsional deformation of the wire of the input spring 31 act between the input spring 31 and the upper support member 41.
  • the input spring 31 and the upper support member 41 are fixed to each other by balancing the frictional force and the torsional deformation force. If the maximum static friction force is less than the force of torsional deformation, the upper end portion of the closing spring 31 rotates in the winding direction with respect to the upper support member 41. In particular, during the closing operation, there may be a moment when the surface pressure between the closing spring 31 and the upper supporting member 41 starts to decrease due to the inertia of the upper supporting member 41 or the like, and the maximum static friction force may be less than the force of torsional deformation.
  • the upper support member 41 is provided with an upper rotation regulation structure 81 that regulates the rotation of the closing spring 31 with respect to the upper support member 41 in the winding direction. According to this configuration, it is possible to prevent the contact portion between each of the pair of input springs 31 and the upper support member 41 from being displaced. Therefore, it is possible to suppress the change in the load distribution of the pair of input springs 31 applied to the upper support member 41. Therefore, it is possible to prevent the upper support member 41 from tilting with respect to the spring accommodating portion 61 and buckling at least one of the pair of input springs 31. Therefore, it is possible to stabilize the closing operation of the switch operating device 1.
  • the upper rotation restricting structure 81 includes an upper pin 83 that protrudes from the upper support member 41 toward the input spring 31 and is formed so as to be in contact with the end 33 of the wire of the input spring 31.
  • the rotation of the upper end portion of the closing spring 31 with respect to the upper support member 41 can be regulated by bringing the end portion 33 of the wire of the closing spring 31 into contact with the upper pin 83.
  • the coil spring tends to twist and deform in the direction of increasing the number of turns as it expands, by bringing the upper pin 83 into contact with the end 33 of the wire of the closing spring 31, the upper end of the closing spring 31 during the closing operation.
  • the rotation of the can be regulated more reliably.
  • the upper pin 83 protrudes from the upper support member 41, so that the end 33 of the wire of the throwing spring 31 comes into contact with the upper pin 83. Can be made to. Therefore, the rotation of the upper end portion of the closing spring 31 with respect to the upper support member 41 can be more reliably regulated.
  • the upper pin 83 is on the outer peripheral surface of the wire on the upper guide spacer 44 side as shown in FIG. Press from. Therefore, the rotation of the upper end portion of the closing spring 31 can be regulated.
  • the coil spring tends to twist and deform in the direction of decreasing the number of turns as it contracts. Therefore, when the closing spring 31 is compressed, the end portion 33 of the wire is easily separated from the upper pin 83, so that the above-mentioned effect can be easily obtained.
  • the buckling of the pair of input springs 31 is also suppressed by the guided portion 70, so that the occurrence of an event in which the force of torsional deformation suddenly increases with the buckling of the input springs 31 is suppressed. ing. Therefore, even in a structure in which the upper pin 83 is press-fitted into the upper guide spacer 44 and fixed, the rotation of the closing spring 31 in the winding direction can be sufficiently regulated by the upper pin 83.
  • the closing spring portion 5 includes a pair of closing springs 31.
  • the closing spring portion 5 requires energy for accumulating the spring force of the breaking spring 11 in addition to the energy for closing the switch 100. If the input spring portion includes a single input spring, the input spring becomes large and the occupied space increases in order to secure the required energy. In addition, as the size of the input spring increases, it becomes more difficult to manufacture and its versatility decreases. Therefore, according to the present embodiment, a general-purpose spring can be used as the closing spring 31, and the space occupied by the closing spring portion 5 can be reduced.
  • the upper pin 83 protrudes from the upper guide spacer 44, but may protrude from the upper positioning spacer 43, for example. The same applies to the lower pin 84.
  • the rotation regulation structure 80 includes the upper rotation regulation structure 81 and the lower rotation regulation structure 82, but even if only one of the upper rotation regulation structure 81 and the lower rotation regulation structure 82 is provided. Good.
  • FIG. 9 is a front view showing the vicinity of the upper end portion of the closing spring according to the second embodiment.
  • FIG. 10 is a front view showing the vicinity of the lower end portion of the closing spring according to the second embodiment.
  • the upper rotation restricting structure 81 includes an upper pin 83 that can come into contact with the end 33 of the wire of the closing spring 31.
  • the lower rotation restricting structure 82 includes a lower pin 84 that can come into contact with the end 33 of the wire of the closing spring 31.
  • the upper rotation restricting structure 81A includes a rough surface portion 85 provided at a contact portion between the upper support member 41 and the input spring 31, and the lower rotation restricting structure 82A includes the lower support member 51. It is different from the first embodiment in that it is provided with a rough surface portion 86 provided at a contact portion between the and the input spring 31.
  • the configuration other than that described below is the same as that of the first embodiment.
  • the upper rotation restricting structure 81A is provided on both the input spring 31 and the upper support member 41.
  • the upper rotation restricting structure 81A has a rough surface portion 85 provided at a contact portion between the input spring 31 and the upper support member 41.
  • the rough surface portion 85 is provided on the seat surface 32 at the upper end of the input spring 31 and the lower surface of the upper 44 guide spacer of the upper support member 41.
  • the rough surface portion 85 is a surface having a surface roughness larger than that of the smooth surface.
  • the rough surface portion 85 is a surface having a surface roughness larger than that of the mirror surface.
  • the rough surface portion 85 is a textured surface.
  • the surface roughness of the rough surface portion 85 may differ between the seat surface 32 at the upper end of the input spring 31 and the lower surface of the upper guide spacer 44 of the upper support member 41.
  • the lower rotation restricting structure 82A is provided on both the input spring 31 and the lower support member 51.
  • the lower rotation restricting structure 82A has a rough surface portion 86 provided at a contact portion between the input spring 31 and the lower support member 51.
  • the rough surface portion 86 is provided on the seat surface 32 at the lower end of the input spring 31 and the upper surface of the lower guide spacer 53 of the lower support member 51.
  • the rough surface portion 86 of the lower rotation regulation structure 82A is formed in the same manner as the rough surface portion 85 of the upper rotation regulation structure 81A.
  • the upper rotation restricting structure 81A provided on the input spring 31 and the upper support member 41 and restricts the rotation of the input spring 31 with respect to the upper support member 41 in the winding direction is provided. According to this configuration, the same effect as that of the first embodiment can be obtained.
  • the upper rotation restricting structure 81A has a rough surface portion 85 provided at a contact portion between the input spring 31 and the upper support member 41. According to this configuration, the frictional force between the input spring 31 and the upper support member 41 can be increased as compared with the configuration in which the contact portion between the input spring and the upper support member has a smooth surface. Therefore, the rotation of the upper end portion of the closing spring 31 with respect to the upper support member 41 can be regulated. Therefore, it is possible to stabilize the closing operation of the switch operating device 1.
  • the rough surface portion 85 is provided on both the input spring 31 and the upper support member 41 in the upper rotation regulation structure 81A.
  • the rough surface portion may be provided on only one of the closing spring 31 and the upper support member 41. The same applies to the rough surface portion 86 of the lower rotation regulation structure 82A.
  • the guided portion 70 includes a lower roller 71 and an upper roller 72 that can rotate.
  • the guided portion may include a shaft member that can contact the edge 66 of the guide groove 65 and cannot rotate, instead of at least one of the lower roller 71 and the upper roller 72.
  • the guided portions 70 are provided on both sides in the X direction with respect to the pair of input springs 31.
  • the present invention is not limited to this, and the guided portion 70 may be provided in only one of the X directions with respect to the pair of closing springs 31. That is, the upper roller 72 may be provided only above one of the lower rollers 71.
  • the frame 2 has been described as a component different from the lower support member 51, but the frame 2 may be included in the component of the lower support member. Further, the installation of the upper guide spacer 44 of the upper support member 41 and the lower guide spacer 53 of the lower support member 51 may be omitted.
  • the upper support member 41 includes a pair of upper guide spacers 44, but the pair of upper guide spacers 44 may be integrated. The same applies to the pair of lower guide spacers 53 of the lower support member 51.
  • the upper rotation restricting structure may include both the upper pin 83 and the rough surface portion 85.
  • the switch operating device is supported by the upper support member and arranged side by side in the guide groove, and has a lower roller and an upper roller that can contact the edge of the guide groove. It is provided with a guided portion to have.
  • the upper support member is prevented from tilting when the pair of closing springs are compressed during the energy accumulation operation of the spring force of the pair of closing springs. Therefore, since the pair of closing springs contract evenly without buckling, the time required for releasing the spring force becomes uniform between the pair of closing springs. Therefore, it is possible to provide an operation device for a switch that enables smooth closing operation.
  • the switch operating device has a rotation regulation structure that regulates the rotation of the pair of input springs in the winding direction with respect to at least one of the upper support member and the lower support member.
  • a rotation regulation structure that regulates the rotation of the pair of input springs in the winding direction with respect to at least one of the upper support member and the lower support member.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

Un dispositif d'actionnement pour des commutateurs selon un mode de réalisation de la présente invention comprend une paire de ressorts de compression, un mécanisme de support de ressort de compression et au moins une partie guidée La paire de ressorts de compression sont agencés parallèlement. Le mécanisme de support de ressort de compression comprend un premier élément de support et une partie de réception de ressort. Le premier élément de support supporte collectivement une première partie d'extrémité de chacun de la paire de ressorts de compression en tant qu'extrémité mobile. La partie de réception de ressort est formée avec au moins une rainure de guidage qui s'étend dans la direction d'expansion et de contraction de la paire de ressorts de compression. L'au moins une partie guidée comporte un premier élément de contact et un second élément de contact. Le premier élément de contact et le second élément de contact sont supportés par le premier élément de support. Le premier élément de contact et le second élément de contact sont positionnés côte à côte dans la direction d'expansion et de contraction de la paire de ressorts de compression dans l'au moins une rainure de guidage. Le premier élément de contact et le second élément de contact sont capables de venir en contact avec un bord de l'au moins une rainure de guidage.
PCT/JP2019/026157 2019-07-01 2019-07-01 Dispositif d'actionnement pour commutateur WO2021001901A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2019/026157 WO2021001901A1 (fr) 2019-07-01 2019-07-01 Dispositif d'actionnement pour commutateur
CN201980097976.6A CN114008732A (zh) 2019-07-01 2019-07-01 开关设备用操作装置
JP2021529577A JP7176116B2 (ja) 2019-07-01 2019-07-01 開閉器用操作装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/026157 WO2021001901A1 (fr) 2019-07-01 2019-07-01 Dispositif d'actionnement pour commutateur

Publications (1)

Publication Number Publication Date
WO2021001901A1 true WO2021001901A1 (fr) 2021-01-07

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JP (1) JP7176116B2 (fr)
CN (1) CN114008732A (fr)
WO (1) WO2021001901A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61126170U (fr) * 1985-01-28 1986-08-08
JP2012043733A (ja) * 2010-08-23 2012-03-01 Toshiba Corp 開閉器用操作装置およびその投入ばね力調整方法
JP2014098241A (ja) * 2012-11-13 2014-05-29 Nexco-Maintenance Tohoku Co Ltd 排水管取付金具

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Publication number Priority date Publication date Assignee Title
AU2011346187B2 (en) * 2010-12-20 2014-10-09 Mitsubishi Electric Corporation Power switch device
CN202678172U (zh) * 2012-06-27 2013-01-16 公牛集团有限公司 旋转避让机械式自复位开关
CN202888045U (zh) * 2012-10-22 2013-04-17 徐世委 无触点滑动式船型开关
CN204706674U (zh) * 2015-05-15 2015-10-14 钱峰 保护儿童的电源插座
JP6495805B2 (ja) * 2015-11-11 2019-04-03 株式会社東芝 開閉器用操作装置及びその遮断ばね力調整方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61126170U (fr) * 1985-01-28 1986-08-08
JP2012043733A (ja) * 2010-08-23 2012-03-01 Toshiba Corp 開閉器用操作装置およびその投入ばね力調整方法
JP2014098241A (ja) * 2012-11-13 2014-05-29 Nexco-Maintenance Tohoku Co Ltd 排水管取付金具

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JPWO2021001901A1 (fr) 2021-01-07
CN114008732A (zh) 2022-02-01

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