CN1341943A - Switch - Google Patents

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Publication number
CN1341943A
CN1341943A CN 01125265 CN01125265A CN1341943A CN 1341943 A CN1341943 A CN 1341943A CN 01125265 CN01125265 CN 01125265 CN 01125265 A CN01125265 A CN 01125265A CN 1341943 A CN1341943 A CN 1341943A
Authority
CN
China
Prior art keywords
switch
sleeve pipe
main cartridge
movable electrode
electrode
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN 01125265
Other languages
Chinese (zh)
Other versions
CN1229834C (en
Inventor
小寺克昌
岩本义丰
伊藤元
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Energy Support Corp
Original Assignee
Energy Support Corp
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
Priority claimed from JP2000260894A external-priority patent/JP3612269B2/en
Priority claimed from JP2000260893A external-priority patent/JP2002075141A/en
Priority claimed from JP2000268711A external-priority patent/JP3660222B2/en
Priority claimed from JP2000268713A external-priority patent/JP3609704B2/en
Priority claimed from JP2000269339A external-priority patent/JP3660223B2/en
Priority claimed from JP2000268712A external-priority patent/JP3609703B2/en
Priority claimed from JP2000269338A external-priority patent/JP3961753B2/en
Priority claimed from JP2001185137A external-priority patent/JP2003007400A/en
Application filed by Energy Support Corp filed Critical Energy Support Corp
Publication of CN1341943A publication Critical patent/CN1341943A/en
Publication of CN1229834C publication Critical patent/CN1229834C/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A switch, wherein an encased zero-phase current transformer (36) and a cut-off relay (37) are fitted into the inside edges of both bushings (21, 22). Between each of the zero phase sequence current transformer (36) and the cut-off relay (37) and an unit casing, an elastic pressing element (31c) is provided that presses both the zero phase sequence current transformer (36) and the cut-off relay (37) in the inside direction of the casing. The movement of the zero phase sequence current transformer (36) and the cut-off relay (37) toward the inside of the casing is restricted by an insulating barrier (41). This structure makes it unnecessary to set screws into the inside surface of the casing and improve withstand voltage between the switch and ground.

Description

Switch
Technical field
The present invention relates to a kind of for example switch of build-in components such as zero phase sequence currenttransformer and cut-out relay that has.
Background technology
In the past, be to run through the sleeve pipe the inner that is supported on the switch main cartridge two side as switch build-in components such as zero phase sequence currenttransformers to place state in the fastening cover to be intercalated in.Fastening cover inserts the upright bolt of being located on the switch main cartridge medial surface, and bolt tightens nut, thus fastening cover is fixed on the main cartridge.But in the past switch with the build-in components supporting structure in, the bolt that fixing build-in components is used must be set on the main cartridge medial surface.Exist the insulation distance between bolt top and cannula tip electrode part to shorten the problem that withstand voltage descends between ground connection thus.
Be provided with fixed electrode and movable electrode running through each the phase cannula tip that is supported on the main cartridge two side again.Known existing a kind of switch has insulating element, and described insulating element carries out insulation between alternate and ground connection by coat its fixed electrode and movable electrode mutually respectively by each.But the connection between above-mentioned each insulating element is also insufficient.Consequent problem is: when open circuit, because movable electrode and make the fierceness action of the open-and-close mechanism portion that this movable electrode rotates makes the position that is provided with of each insulating element that relativity shift take place.
Again, the movable electrode of being located at cannula tip is connected with the open-and-close mechanism portion that is made of many connecting rods etc., and under the driving of this open-and-close mechanism portion, movable electrode is with the fixed electrode contact or separate.Yet, the varying in size of the movable electrode head portion that designs owing to the size of considering powered-on capacity, movable electrode is very big towards the inertia that disconnects direction during disconnection.Like this, make movable electrode cross the release position of regulation significantly and the possibility of rotating is very big.For this reason, indispensable consideration during design: will put on the devices such as connecting rod that constitute open-and-close mechanism portion for the load that makes movable electrode stop at the regulation release position to following factor.
Because insulating element roughly covered the electrode part of being made up of fixed electrode and movable electrode fully in the past, therefore such problem is arranged: in main cartridge, be provided with after the insulating element, can't confirm the situation of this insulating element inside again.
The known switch that has as shown in figure 46.This open relation runs through fixed power source side sleeve pipe 211 and load side sleeve pipe 212 on opposed in opposite directions left side wall 210a of switch box body 210 and right side wall 210b, mains side sleeve pipe 211 is provided with fixed electrode 213, runs through to be supported with conducting rod 214 on load side sleeve pipe 212.With two bolts 222 movable electrode supporting member 231 is installed on the conducting rod 214.On movable electrode supporting member 231, be supported with movable electrode 216 opening or closing by connecting pin 226.In addition, by folding driving mechanism not shown in the figures, making movable electrode 216 is the swing that above-below direction is made at the center with connecting pin 226, so, makes movable electrode 216 relative fixed electrodes, 213 contacts or separation, carries out switching on or off of circuit.
But system does the fastening of relative conducting rod 214 by bolt 222 with movable electrode supporting member 231 because of the supporting structure of the movable electrode 216 in the above-mentioned switch in the past, so, the installation site of movable electrode 216 is set in assigned position.When its result, the corresponding relation generation deviation of fixed electrode 213 and movable electrode 216, can't revise by movable electrode supporting member 231 1 sides.
When revising the corresponding relation of movable electrode 216 relative fixed electrodes 213, normally adopt the method for the position of regulating load one side sleeve pipe 212 relative right side wall 210b.A plurality of fastening bolts 233 of the retention mechanism 232 of fastening load one side sleeve pipe 212 on right side wall 210b unclamp in above-mentioned position adjustments method system, simultaneously the load side sleeve pipe 212 of mobile three-phase.
Therefore, as stated above not only can't be to movable electrode 216 by the fine setting of carrying out the position mutually, and the position adjustments of three-phase movable electrode 216 is also pretty troublesome.
Again, known existing such switch: movable electrode is made of 2 movable touch knifes, and the base end part of two movable touch knifes passes through the pivot pin rotatably support on conducting rod.Near the central authorities of two movable touch knifes, connecting the folding drive link rotationally by connecting axle, above-mentioned folding dynamically is connected in open-and-close mechanism portion with drive link.Two movable touch knifes form dull and stereotyped L word shape or reaping hook shape with the metal material with conductivity respectively, and the distance between two movable touch knifes is narrow than the width of fixed electrode.And closed a floodgate when driving when above-mentioned open-and-close mechanism portion, by the folding drive link, two movable touch knifes are rotating fulcrum with the pivot pin, rotate to closing direction.Two movable touch knifes because of and fixed electrode between sliding contact expand out, when moving to make position, two movable touch knifes are because of the elastic force of himself, contact with the fixed electrode two sides with the contact pressure of regulation.
During by electric current, then between two movable touch knifes electromagnetic attraction takes place because of this function of current on by two pieces of movable electrodes that movable touch knife constituted.Distance (pitch) between the size of this electromagnetic attraction and two movable touch knifes is inversely proportional to, and with movable touch knife length (strictly speaking, come down to the length of parallel conductor, that is, from folding with the axle installation site of drive link to the distance of its top connecting portion) and 1/2 square be directly proportional of the electric current of the movable touch knife of flowing through.For this reason, the switch that its rated current is big more, its electromagnetic attraction that acts between two movable touch knifes is also big more.This does not become big problem in the switch that for example specified short circuit switching current is 8kA, still, then can produce following problems in the switch that specified short circuit switching current is 12.5kA.
Promptly, when closing a floodgate, the switch that to act on the electromagnetic attraction between two movable touch knifes be 8kA compared with specified short circuit closed path obviously increases, therefore, on two movable touch knifes direction near each other, make folding do bending deflection with the axle bearing position of drive link to fulcrum, two movable touch knifes are too approaching each other.Because apart from being inversely proportional to, so mutual spacing is from too close between the size of electromagnetic attraction and two movable touch knifes, its electromagnetic attraction all the more increases.For this reason, when closing a floodgate, may make that two movable touch knifes are pushed open at the electrode that is not fixed, closed also inadequate state (semi-closed state) just stops.Thereby be difficult to do closed smoothly.
Again, the rated current of switch is big more, also must increase (lengthening) for guaranteeing the required movable touch knife size of its folding capacity.Particularly, the movable touch knife folding increases with the distance between axle bearing position and the top contact site of drive link, and then the stable support ability of two movable touch knifes reduces, and simultaneously, is subjected to the influence of above-mentioned electromagnetic attraction when closed easily.Therefore, two movable touch knifes are difficult to guarantee that to the chucking power instability of fixed electrode two movable touch knifes are in stable contact condition at the top contact site.
As in the past the switch spline structure with the conducting rod on the sleeve pipe, the applicant has proposed a kind of mechanism shown in the real fair 2-6574 communique of Japanese patent gazette.This rotation preventive mechanism system with the spline plate embed forms by insulating material such as resin or rubber, do with box face that face contacts, the relative containment member inside that can not connect rotationally, it can not be relatively rotated.Form the jack that is roughly drum type at spline plate central part, this jack is inserted roughly similar to the jack conducting rod in its cross section, conducting rod is anchored on the sleeve pipe with nut.
But above-mentioned rotation preventive mechanism in the past is because of the manufacturing of spline plate and conducting rod and the intersection on the package size, in the portion's of running through generation certain clearance of two members.For this reason, on switch being installed on electric pole etc. after, going between when drawing and being installed on another conducting terminal, torque is arranged as effect on lead-in wire from sleeve pipe, then conducting rod is done rotation among a small circle in the jack of spline plate.Thus, the assembling position that causes being installed on the movable electrode of conducting rod end departs from the normal position because of the rotation of conducting rod.Its result causes the corresponding relation generation deviation of fixed electrode and movable electrode, and the resistance to sliding change of two electrodes during folding forms concentrated wear, and brings adverse effect to opening and closing movement.
For addressing the above problem, the someone considers the method that filling adhesive is fixed in the gap.But whether this method troublesome poeration can reliably stop the reliability ambigendi locus of the rotation of conducting rod.
Usually, switch enclosure is to be engaged on the flange part that is formed on main cartridge peristome end limit by the flange part that seal will be formed at box cover peristome end limit, and fastening by screw bolt and nut.As shown in figure 47, the cross section of the flange part 512b of main cartridge 512 is the reverse U shape shape, and to accommodate seal 514, the flange part 513b of box cover 513 pushes, is contacted with the outer surface of seal 514.
But according to above-mentioned switch box body in the past, because be that C1, the C2 at the flange part 512b of main cartridge 512, three places of C3 are bent to form, so the drawing operation of flange part 512b must be carried out three times, very trouble.
Summary of the invention
The 1st purpose of the present invention is: a kind of switch of withstand voltage build-in components supporting structure between ground connection that improves is provided.
The 2nd purpose of the present invention is: a kind of switch and insulating element thereof are provided, and described switch can prevent to be arranged at respectively relatively moving between each insulating element of going up mutually.
The 3rd purpose of the present invention is: a kind of switch is provided, and described switch can prevent that movable electrode from significantly crossing the release position of regulation and rotate.
The 4th purpose of the present invention is: a kind of switch insulating element is provided, described insulating element in being arranged at main cartridge after, also can confirm its inner case.
The 5th purpose of the present invention is: a kind of supporting structure of switch movable electrode is provided, described supporting structure can be easily to the mounting position of movable electrode respectively by regulating mutually.
The 6th purpose of the present invention is: a kind of switch movable electrode structure is provided, and described structure can be stablized the chucking power of two movable touch knifes to fixed electrode when opening and closing combined floodgate.
The 7th purpose of the present invention is: the rotation preventive mechanism of a kind of switch with conducting rod in the sleeve pipe is provided, and described mechanism can prevent the loosening of the interior conducting rod of sleeve pipe, the corresponding relation of correct maintained switch movable electrode and fixed electrode.
The 8th purpose of the present invention is: a kind of switch box body and employed seal thereof that can easily carry out the punch forming operation is provided.
The invention provides a kind of build-in components supporting structure of switch.Described open relation is intercalated in each with switch with build-in components and relatively runs through the cannula tip that is supported on the main cartridge two side mutually.Between described build-in components and main cartridge, be provided with the insulating properties elastic pressurizing element of described build-in components being pressed to the main cartridge inboard, in main cartridge, also be provided with the align member of restriction build-in components to the main cartridge medial movement.
The invention provides a kind of switch build-in components bearing support.Described bearing support is installed on that formed sleeve pipe runs through portion on the main cartridge sidewall.Described bearing support is formed by the elastomeric material with insulation property, for intercalation the tubular support of sleeve pipe is arranged, and has the elastic pressurizing element of build-in components being pressed to the main cartridge inboard.
The invention provides a kind of switch build-in components bearing support.Described bearing support is installed on that formed sleeve pipe runs through portion on the main cartridge sidewall.Described bearing support is formed by the elastomeric material with insulation property, comprise: intercalation has the tubular support of sleeve pipe, be located at the sealing on the support, when the mounting support frame between casing flange and main cartridge outer wall, be located at the elastic pressurizing element on the support, when the mounting support frame between main cartridge medial surface and build-in components.Described elastic pressurizing element has the active force of build-in components being pressed to the main cartridge inboard.
The invention provides a kind of switch insulation component.In above-mentioned switch, on the main cartridge two side, run through being supported with each mutually relative sleeve pipe, on a side cannula tip, be provided with fixed electrode, and on the opposite side cannula tip, be provided with rotationally can with fixed electrode from, the corresponding movable electrode that closes.Insulating element covers two electrodes of each phase respectively, carries out the insulation between alternate and ground connection.Insulating element has the clamping close device that relatively moves that can prevent between adjacent insulating element.
The invention provides a kind of switch, described switch runs through on the main cartridge two side and is supported with each mutually relative sleeve pipe, on the end of a side sleeve pipe, be provided with fixed electrode, and on the opposite side cannula tip, be provided with rotationally can with fixed electrode from, the corresponding movable electrode that closes.Insulating element covers two electrodes, carries out the insulation between alternate and ground connection thus.On a side of insulating element, be provided with protuberance or recess, on its another side, be provided with recess or protuberance that raised part relatively or recess engage again.
The invention provides a kind of switch, described open relation runs through on the main cartridge two side and is supported with each mutually relative sleeve pipe, on a side cannula tip, be provided with fixed electrode, and on the opposite side cannula tip, be provided with rotationally can with fixed electrode from, the corresponding movable electrode that closes.Described switch has buffer component, and described buffer component is supported in the box body by supporting arrangement, in movable electrode mobile offside, absorbs described turning power when preventing to disconnect.
The invention provides a kind of switch insulation component.In above-mentioned switch, on the main cartridge two side, run through being supported with each mutually relative sleeve pipe, on the end of a side sleeve pipe, be provided with fixed electrode, and on the cannula tip of opposite side, be provided with rotationally can with fixed electrode from, the corresponding movable electrode that closes.Insulating element covers two electrodes, carries out the insulation between alternate and ground connection by this.Insulating element is provided with inspection hole, by described inspection hole can the state in being arranged at main cartridge under, confirm the electrode structure that it is inner.
The invention provides the supporting structure of the movable electrode in a kind of switch.Described supporting structure be equipped with can be arranged at fixed electrode in the switch box body from, the movable electrode that closes.Be installed on the conducting rod end of being supported on the sleeve pipe of switch enclosure, by the electrode support member supporting movable electrode is arranged, between conducting rod and electrode support member, be provided with and movable electrode is moved adjusting, left and right directions towards the conducting rod axis direction as fore-and-aft direction move and regulate or left and right directions rotates the electrode position governor motion of regulating.
The invention provides a kind of supporting structure of switch movable electrode, described supporting structure is equipped with the movable electrode that the fixed electrode that can be relatively arranged in the switch box body is approaching, separate.On the conducting rod end of being supported on the sleeve pipe that is installed on the switch box body, be supported with the movable electrode supporting member.The structure of the base end part of movable electrode supporting member makes it move adjusting, left and right directions as fore-and-aft direction at the axis direction of conducting rod and moves and regulate or left and right directions rotates and regulates.
The invention provides a kind of switch movable electrode structure.With under the driving of drive link, a pair of movable touch knife of movable electrode is made resilient clamp from both sides to fixed electrode to described structure, to keep closed circuit state in folding.In the optional position of the axle bearing position of using drive link from the folding between two movable touch knifes to the top contact site, and on the position of not disturbing with movable electrode or the set arc extinguishing member of fixed electrode side, be provided with restriction two movable touch knifes from, the stopping means that closes.
The invention provides the rotation preventive mechanism of a kind of switch with conducting rod in the sleeve pipe.Described mechanism ties up to relative box body runs through on the fixing sleeve pipe and inserts conducting rod, be formed at snap flange and this inside pipe casing on the conducting rod set engage the end difference butt, box face is provided with containment member.With twisting the nut close in the outer screw section of conducting rod conducting rod is anchored on the sleeve pipe.Between containment member and nut, accompany the spline plate, be formed with on the spline plate can with the engaging recessed part that engages the engaging of protuberance or recess or the engaging protuberance of containment member.The jack that is formed at spline plate central part is provided with can be chimeric with the notch part of the outer screw section that is formed at conducting rod, prevent the rotating incision teat of conducting rod.
The invention provides a kind of switch enclosure of forming by main cartridge and box cover.Between being formed at the flange part on the main cartridge peristome ora terminalis and being formed at flange part on the hamper body peristome ora terminalis, being formed with the cross section is leg-of-mutton seal receiving space.
Description of drawings
Fig. 1 is the front section view of switch.
Fig. 2 is the decomposition front view of sleeve pipe installation portion.
Fig. 3 is the major part front section view of sleeve pipe installation portion.
Figure 4 shows that the end view under the fastening state of three phase isolated parts.
Fig. 5 is the stereogram of insulating element.
Fig. 6 is the stereogram of insulating element.
Fig. 7 is in the major part amplification view under the fastening state for showing engaging recessed part and engaging protuberance.
Fig. 8 is the stereogram of insulating element.
Figure 9 shows that the decomposition front section view of the installation of buffer and carrying cylinder.
Figure 10 shows that the front section view of the installation of buffer and carrying cylinder.
Figure 11 (a) is depicted as bundle is installed on the schematic perspective view that the binding member gets on, and Figure 11 (b) is depicted as the stereogram of various cables such as control line being made the boundling laying state.
Figure 12 shows that the front section view under the installment state that changes the barrier structure in the example.
Figure 13 is for changing the vertical view of the major part of switch in the example.
Figure 14 is for changing the front view of the major part of switch in the example.
Figure 15 (a) is for changing the stereogram of the build-in components in the example, and Figure 15 (b) is for changing the side sectional view of the build-in components switch in the example.
Figure 16 is for changing the front section view of the major part of switch in the example.
Figure 17 (a) is for changing the stereogram of the build-in components in the example, and Figure 15 (b) is the front section view of the major part of the build-in components switch in the variation example.
Figure 18 is the front section view of the major part of the switch in the variation example.
Figure 19 is the front view of open-and-close mechanism portion of the switch of the 2nd example of the present invention.
Figure 20 is the vertical view of the open-and-close mechanism portion of Figure 19.
Figure 21 is the cutaway view of the supporting structure portion of movable electrode.
Figure 22 saves the cutaway view of drive link for the 20-20 line place of Figure 19.
Shown in Figure 23 is the exploded perspective view of movable electrode bearing structure.
Figure 24 is for changing the stereogram of routine movable electrode bearing structure.
Figure 25 is for changing the exploded perspective view of routine movable electrode bearing structure.
Figure 26 is the front view of the movable electrode of the 3rd example of the present invention.
Figure 27 is the vertical view of the movable electrode of the 3rd example of the present invention.
Figure 28 is the front view of the movable electrode of the 4th example of the present invention.
Figure 29 is the cutaway view at the 29-29 line place among Figure 28.
Vertical half sectional view for the spline structure of the conducting rod in the switch of the 5th example of the present invention has been specialized shown in Figure 30.
Figure 31 is the longitudinal sectional view of the amplification of major part.
Figure 32 is the exploded perspective view of conducting rod, containment member and spline plate.
Figure 33 is the longitudinal sectional view after the major part before the clamp nut is amplified.
Figure 34 is the longitudinal sectional view after the major part after the clamp nut is amplified.
Figure 35 is for changing the cutaway view of routine spline plate.
Figure 36 is for changing the routine containment member and the front view of spline plate.
Figure 37 is for changing the routine containment member and the front view of spline plate.
Figure 38 is the cutaway view after the switch box body major part of the 6th example of the present invention is amplified.
Figure 39 is the cutaway view after the same switch box body major part is amplified.
Figure 40 is the cutaway view after the same switch box body major part is amplified.
Figure 41 is the exploded perspective view of switch box body.
Figure 42 is local excision's front view of display switch.
Be respectively the transverse sectional view of other examples of main cartridge and box cover connected structure shown in Figure 43 (a)-Figure 43 (e).
Be respectively the transverse sectional view of other examples of seal shown in Figure 44 (a)-Figure 44 (e).
Figure 45 is the stereogram of other examples of seal.
Shown in Figure 46 is the cross-sectional schematic of the movable electrode bearing structure of switch in the past.
Shown in Figure 47 is the transverse sectional view of switch enclosure main cartridge and box cover junction surface structure in the past.
The specific embodiment
Below, with reference to Fig. 1-Figure 11, just the switch of the present invention's the 1st example does one with the build-in components supporting structure Explanation.
Overall structure
As shown in Figure 1, the box body of switch 11 comprises: have lower openings section and lid case shape main cartridge 12, and Have the case shape bottom box body 13 of upper opening section and bottom, the lower openings section of main cartridge 12 is by bottom box body 13 Institute is closed. The open side edges section of the fastening compressing tablet 14 relative main cartridges 12 of the open side edges section of box body 13 bottom being located at Upper set brace 15 is fastening by bolt 16 and 17 on nut. By this, can be so that bottom box body 13 be relative Main cartridge 12 is done detachable connection. Accompany seal 18 between main cartridge 12 and the bottom box body 13, seal 18 The air-tightness of maintained switch 11.
Main cartridge 12 is mutually on the relative two side, and is mutual with each phase in the three-phase (only showing a phase among Fig. 1) Relative state runs through being supported with mains side sleeve pipe 21 and load side sleeve pipe 22. Mains side in main cartridge 12 The end of sleeve pipe 21 is fixed with shaft-like fixed electrode 23, fixes in the end of main cartridge 12 internal loading side sleeve pipes 22 Supporting member 24 is arranged. On this supporting member 24, be supported with pivotally the cardinal extremity of movable electrode 26 by axle 25 Section. Movable electrode 26 is made of a pair of movable touch knife that be arranged in parallel each other (only having shown a movable touch knife among the figure).
On the other hand, the top in main cartridge 12, (Tu Zhong economizes by the opening-closing structure that is made of a plurality of connecting rods etc. Slightly), be provided with the turning cylinder 27 of the operating grip (not shown) that is connected in main cartridge 12 outsides, at this turning cylinder But be fixed with to unitary rotation control lever 28 on 27. The top of control lever 28 is connected with drive link 29 rotationally An end. The other end of this drive link 29 is connected near the central authorities of movable electrode 26 rotationally. Thus, The operating operation handle, movable electrode 26 passes through opening-closing structure, turning cylinder 27, control lever 28 and drive link 29, Centered by axle 25, mobile between the release position shown in closing position shown in Fig. 1 solid line and Fig. 1 double dot dash line.
The build-in components bearing support
As shown in Figures 2 and 3, be separately installed with the build-in components supporting on each cased perforated 12a of main cartridge 12 Frame (below, referred to as " bearing support ") 31. Bearing support 31 has insulating properties and flexible synthetic tree by EPDM etc. The one-shot forming of fat material comprises cylindric support 31a, sealing 31b and as the insulating properties elastic pressurizing element The 31c of elastic pressurized section. The outside dimension of support 31a makes it can be embedded in the cased perforated 12a of main cartridge 12 In. The internal diameter size of support 31a make its can with the cannula tip side of each sleeve pipe 21,22 flange 21a, 22a Part is chimeric. Sealing 31b becomes a circular end end periphery that is based in support 31a. The 31c of elastic pressurized section Become circular cone shape to be based in the support 31a periphery of sealing 31b inboard. In sealing 31b and elastic pressurized section Between the 31c, its interval is equivalent to the distance of the sidewall thickness of main cartridge 12. In sealing 31b, elastic pressurized section The part of the support 31a periphery between 31c and sealing 31b and the 31c of elastic pressurized section forms installs recess 32.
As shown in Figure 3, the edge of opening that accompanies the cased perforated 12a of main cartridge 12 on the recess 32 is installed. That is, cover The edge of opening (medial surface edge) of pipe perforation 12a is covered by the synthetic resin that EPDM etc. has insulating properties. Each Sleeve pipe 21,22 is interspersed in respectively among the support 31a of the upper bearing support 31 of installing of cased perforated 12a.
As shown in Figure 1, in the sidewall outer of main cartridge 12, near cased perforated 12a, stand and be provided with a plurality of bolts 33. Respectively be inserted with the flange pressing piece 34 that covers each sleeve pipe 21,22 flange 21a, 22a on each bolt 33, With nut 35 fastening pressing pieces 34, by this, each sleeve pipe 21,22 relative main cartridges 12 are fixed from the outside.
As shown in Figures 2 and 3, the sealing 31b of bearing support 31 be arranged at each sleeve pipe 21,22 flange 21a, Between the sidewall outer of 22a and main cartridge 12, by this, annoying password protection hold main cartridge 12 inside and outside.
On the end of mains side sleeve pipe 21 there be into box zero phase sequence currenttransformer 36 intercalation, in the end of load side sleeve pipe 22 Intercalation has cut-out relay 37. That is, advance be formed with respectively on box zero phase sequence currenttransformer 36 and the cut-out relay 37 right Should (only show among Fig. 2 and Fig. 3 in three-phase electricity source and load side sleeve pipe 21,22 sleeve pipe jack 36a, 37a The sleeve pipe jack of a corresponding phase). In addition, be inserted with mains side and load side sleeve pipe on two sleeve pipe jack 36a, the 37a 21,22 end reaches the part than the elastic pressurized section 31c inside of support 31a. Again, control lever 28, enter The build-in components that the formation switches such as box zero phase sequence currenttransformer 36 and cut-out relay 37 are used.
As shown in Figure 1, enter be provided with between box zero phase sequence currenttransformer 36 and the cut-out relay 37 as described below Insulating element 41. Insulating element 41 has mutually relative pair of sidewalls, this pair of sidewalls with alternate direction To enter box zero phase sequence currenttransformer 36 and cut-out relay 37 by pressing to the 31c of elastic pressurized section one side, simultaneously, by The elastic force of the 31c of elastic pressurized section makes into box zero phase sequence currenttransformer 36 and cut-out relay 37 and is pressed towards all the time the master The inboard of box body 12. That is, enter box zero phase sequence currenttransformer 36 and cut-out relay 37 by in main cartridge 12, establishing Put insulating element 41, and can under the maintenance pressure of regulation, remain in two sleeve pipes 21,22 end. In other words, Enter box zero phase sequence currenttransformer 36 and cut-out relay 37 by insulating element 41 location.
Insulating element
Such as Fig. 1 and shown in Figure 4, in main cartridge 12, (scheme by each phase as the insulating element 41 of positioning element Only show a phase in 1) separate configurations. Insulating element 41 is by having closing of insulating properties such as unsaturated polyester resin etc. Resin injection mo(u)lding and forming. Such as Fig. 4-shown in Figure 6, insulating element 41 forms and can cover from the below two electricity The utmost point 23,26 have under casing box-like. Opening is arranged at insulating element 41 tops, has mutually relative one between out-phase on the direction Oppose side wall 41a, 41b. And out-phase between on the direction of perpendicular direction, insulating element 41 has mutually relative one Oppose side wall 41c, 41d. Recess 42,43 is formed respectively at the top at sidewall 41c, 41d. Recess 42,43 respectively Form along sleeve pipe 21,22 outer peripheral face. The configuration of insulating element 41 makes each phase sleeve pipe 21,22 and electrode 23,26 Between its sidewall 41a, 41b, engage respectively sleeve pipe 21,22 downside on the recess 42,43.
Clamping close device
As shown in Figure 5, there are 3 engaging recessed parts 44 to be disposed on the square sidewall 41a one of among pair of sidewalls 41a, the 41b Each vertex position of del. As shown in Figure 6, there are 3 engaging protuberances 45 to join on the opposing party's sidewall 41b again, Place each vertex position of del. As shown in Figure 4, in that main cartridge 12 is interior when each insulating element 41 is set, The engaging recessed part 44 of sidewall 41a, the 41b of adjacency and engaging protuberance 45 engage mutually each other.
That is, as shown in Figure 7, engaging protuberance 45 is positioned at engaging recessed part 44, and by this engaging can prevent each insulation Parts 41 are along the movement on sidewall 41a, the 41b direction.
Jockey
Such as Fig. 4 and shown in Figure 8, be equipped with cylindric fitting portion 46 on the bottom wall outer face of each insulating element 41. As
Fig. 1 and shown in Figure 4, each insulating element 41 connect each other by connecting elements 47 is installed on fitting portion 46. That is, connecting elements 47 forms long size shape by the synthetic resin with insulating properties, at this connecting elements 47 On be formed with 3 embedded hole 47a. 3 embedded hole 47a with the out-phase of the fitting portion 46 of each insulating element 41 Between the identical arranged spaced of configuration space on the direction. And, upper respectively chimeric each fitting portion of each embedded hole 47a 46, connect by this insulating element 41 of each phase. The wall thickness of connecting elements 47 is less than the height of fitting portion 46, each embedding It is outstanding below connecting elements 47 to close section 46.
Interference prevents member
Such as Fig. 1 and shown in Figure 4, be equipped with on the ledge below the connecting elements of each fitting portion 46 47 disturb anti-End member 48. That is, disturb and to prevent that member 48 is by having insulating properties and flexible elastomeric material forms the lateral section Be the L word shape, with connecting elements 47 each other concavo-convex relation arranged. Again, prevent on the member 48 in interference, with The interval that each embedded hole 47a is identical is formed with 3 perforation 48a. On each 48a that bores a hole respectively chimeric have from each chimeric Outstanding part below the connecting elements 47 of section 46. Prevent under the installment state of member 48 each fitting portion in interference 46 top ends is positioned at the 48a inside of respectively boring a hole. Interference prevents the bottom surface of member 48 and the medial surface of bottom box body 13 Butt prevents member 48 by described interference, can prevent that each insulating element 41 and bottom box body 13 medial surfaces from sending out Give birth to and disturb.
Peep hole
Such as Fig. 1 and shown in Figure 8, form in the bottom of the sidewall 41d of load side sleeve pipe 22 1 sides of insulating element 41 Circular peep hole 49 is arranged. Peep hole 49 is used at the state that arranges that insulating element 41 is arranged in the main cartridge 12 Lower or arrange in the way, can confirm from the outside electrode structure of insulating element 41 inside etc. That is, peep hole 49 joins Seated position, size (diameter) and shape etc. should be set to such an extent that can confirm electrode structure of insulating element 41 inside etc. Again, peep hole 49 also doubles as the installation portion of following buffer component 52.
The port lid member
Such as Fig. 1 and Fig. 8, shown in Figure 9, at peep hole 49 port lid member 51 (seeing Fig. 9) is installed, thus stifled Plug peep hole 49. Port lid member 51 comprises the buffer 52 that doubles as buffer component and damping member, and as transmitting The carrying cylinder 53 of member.
Buffer
As shown in Figure 9, buffer 52 has insulating properties by EPR etc. and flexible synthetic resin material forms cylinder Shape. Buffer 52 1 end openings. Buffer 52 peristome peripheries form circular mounting groove 54, this mounting groove Embed the edge of opening of the peep hole 49 that insulating element 41 is arranged in 54. Again, the bottom of buffer 52 roughly in The centre is formed with Air blowing mouth 55 on the position. Be formed with continuously laterally on week in the open end of buffer 52 and expand The big conical surface 56, and diameter is greater than the major diameter section 57 of buffer 52 internal diameters.
As shown in figure 10, when disconnecting, movable electrode 26 can take place offside in the disconnection direction because of its inertia force sometimes. That is, movable electrode 26 rotates sometimes and crosses the desired location shown in Fig. 1 double dot dash line. At this moment, movable electrode The inner end collision of 26 the back side and buffer 52. The length of buffer 52, diameter and installation site (are namely observed The formation position in hole 49) etc. set according to the action of movable electrode 26. If movable electrode 26 back sides and buffering Device 52 inner ends bump, and buffer 52 can distortion.
Carrying cylinder
As shown in Figure 9, carrying cylinder 53 forms cylindric by the synthetic resin material that polyethylene etc. has insulating properties. One end opening of carrying cylinder 53. The bottom of carrying cylinder 53 is formed with the circular cone shape that increases towards the peristome diameter Airtight 58. Airtight 58 maximum gauge is a bit larger tham the major diameter section 57 of buffer 52. Again, at carrying cylinder 53 Periphery central authorities near be formed with flange part 59, this flange part 59 has towards the planar portions of buffer 52 1 sides.
As shown in figure 10, on the inside bottom of the flange part 59 of carrying cylinder 53 chimeric have be installed on the peep hole 49 The opening of buffer 52. Carrying cylinder 53 to the movement of insulating element 41 inboards because of the flange part 59 of carrying cylinder 53 Planar portions is restricted with buffer 52 engaging of open end. Act on airtight 58 peripheries of carrying cylinder 53 Buffer 52 is arranged towards the elastic force of inboard, the conical surface 56 close contacts of airtight 58 and buffer 52. That is, The peristome of buffer 52 is airtight by carrying cylinder 53. For this reason, during disconnection, movable electrode 26 back sides and buffer 52 Collision makes buffer 52 distortion, and the air of buffer 52 inside is extruded outwards through blow-off outlet 55 by compression namely Section. Again, the medial surface butt of the open end of carrying cylinder 53 and bottom box body 13, movable electrode 26 and buffer Impact during 52 inner end butt is through carrying cylinder 53 and bottom box body 13 and be passed to main cartridge 12.
Cable binding member
As shown in Figure 8, be equipped with a plurality of binding members 61 on the bottom surface circumference of insulating element 41. Such as Figure 11 (a) Shown in, binding is formed with on the member 61 and can interts the inserting hole 61a of bundling belt 62. Shown in Figure 11 (b), control The various cables 63 such as line processed compile along insulating element 41 bases, reeled by interting the bundling belt of inserting hole 61a, Insulating element 41 is fixing relatively.
The effect of the 1st example
Below, be described with regard to the effect of the switch of aforementioned structure.
Carry out opening operation with operating grip, then movable electrode 26 turns to figure from the closing position shown in Fig. 1 solid line Release position in 1 shown in the double dot dash line. The inertia force of the disconnection direction of movable electrode 26 is very big, makes it to greatly Crossing greatly the direction of release position rotates. Yet the connecting rod etc. that consists of moving open-and-close mechanism section is moving to its license Before the mobile restriction scope, the collision of the inner end of the back side of movable electrode 26 and buffer 52. Its result can Prevent the offside of movable electrode 26. That is, can prevent that movable electrode 26 is to the direction of crossing significantly the release position Rotate. Simultaneously, the turning power of movable electrode 26 can be absorbed by buffer 52 rapidly. Can alleviate thus consisting of That the connecting rod of open-and-close mechanism section etc. applies, make it stop at the load that the regulation release position is used. Movable electrode 26 with During the collision of buffer 52 inner ends, its impulsive force is absorbed, relaxes because of the distortion of buffer 52. Again, this punching The power of hitting is passed to bottom box body 13 and main cartridge 12 by carrying cylinder 53. Insulating element 41 is to the cover of load one side Manage the movement of 22 outer extreme directions, also limit because of the butt of carrying cylinder 53 outer ends and bottom box body 13 medial surfaces System.
The outer end opening section of buffer 52 is sealed by carrying cylinder 53, and therefore, itself and external communication unit divide only for blowing out Mouth 55. Thus, when the inner end collision of movable electrode 26 with buffer 52, buffer 52 distortion, then inner Air is compressed, is squeezed out the outside from blow-off outlet 55. The electric arc that this compressed air is blown to movable electrode 26 is sent out Life section, the arc extinguishing gas that takes place during disconnection is dispelled to the direction away from movable electrode 26. Thus, can prevent Movable electrode 26 contact after the disconnection is stranded in the arc extinguishing gas of electric arc generating unit and circuits for triggering again.
Below, be described with regard to the switch of aforementioned structure effect and the effect with the build-in components supporting structure.
(1) enters box zero phase sequence currenttransformer 36 and cut-out relay 37 with main what be intercalated in two sleeve pipes 21,22 ends Be provided with the 31c of elastic pressurized section that is formed on the bearing support 31 between the box body 12. By this, make into the box zero phase-sequence and become Stream device 36 and cut-out relay 37 are under the resilient force of the 31c of elastic pressurized section, by to main cartridge 12 interior thrusters Press. Because the active force of the 31c of elastic pressurized section makes into box zero phase sequence currenttransformer 36 and cut-out relay 37 to main cartridge The movement of 12 inboards also is restricted because of the insulating element 41 that is arranged in the main cartridge 12. That is, by inciting somebody to action absolutely Edge part 41 is arranged in the main cartridge 12, can will enter box zero phase sequence currenttransformer 36 and cut-out relay 37 with embedding The state that inserts in sleeve pipe 21,22 ends remains in the main cartridge 12. Thereby, needn't will enter the box zero phase-sequence with bolt Current transformer 36 and cut-out relay 37 are fixed in main cartridge 12 medial surfaces, the electricity on bolt and sleeve pipe 21,22 tops Short this problem of insulation distance between the utmost point section (fixed electrode 23 and movable electrode 26) is solved, and can carry Height over the ground between withstand voltage.
(2) insulating element 41 is also used as restriction and enters box zero phase sequence currenttransformer 36 and cut-out relay 37 to main cartridge The align member of the movement of 12 interior side directions. Thus, can by insulating element 41 is set in main cartridge, will enter Box zero phase sequence currenttransformer 36 and cut-out relay 37 remain in assigned position. Thereby, needn't be provided in addition making Enter the member of box zero phase sequence currenttransformer 36 and cut-out relay 37 location usefulness.
(3) enter box zero phase sequence currenttransformer 36 and cut-out relay 37 under the resilient force of the 31c of elastic pressurized section, When being pressed towards main cartridge 12 inboard, also be pressed towards main cartridge 12 outside (elastic pressurizeds because of insulating element 41 The 31c of section one side). That is, enter box zero phase sequence currenttransformer 36 and cut-out relay 37 to be intercalated in sleeve pipe 21,22 ends The state of section keeps. For this reason, needn't use and to enter box zero phase sequence currenttransformer 36 and cut-out relay 37 is fixed in the master Therefore bolts in the box body 12 etc. can reduce number of components. Can simplify and to enter box zero phase sequence currenttransformer 36 again, And cut-out relay 37 is installed on the fitting operation on the main cartridge 12.
(4) 31c of elastic pressurized section and sealing 31b are integrally formed. That is, the cased perforated 12a of main cartridge 12 The marginal portion is covered by the insulating properties materials such as EPDM that are formed with the 31c of elastic pressurized section and sealing 31b. Thus, So that the creepage distance between the marginal portion of sleeve pipe 21,22 contact section and cased perforated 12a increases, sleeve pipe is worn The concentrated of electric field on the 12a marginal portion, hole relaxed. Thus, can prevent more reliably sudden strain of a muscle between ground connection Network.
(5) be formed with a plurality of engaging recessed parts 44 on the side sidewall 41a of insulating element 41, at opposite side sidewall 41b On be formed with a plurality of engaging protuberances 45. And, make each other engaging recessed part 44 and the engaging of sidewall 44a, the 44b of adjacency Protuberance 45 engages mutually. Thus, can prevent that each insulating element 41 from taking place relatively to move along sidewall 44a, 44b direction Moving.
(6) the embedded hole 47a of chimeric connecting elements 47 on the fitting portion 46 of each insulating element 41 is with mutually interconnection Connect each insulating element 41. Can prevent not only that thus each insulating element 41 from taking place relatively along sidewall 44a, 44b direction Mobile, and can prevent along the movement on the direction between out-phase. Thereby, when disconnecting, even movable electrode takes place and make The fierceness action of the open-and-close mechanism section that this movable electrode rotates, phase can not take place in the setting position of each insulating element 41 yet To departing from.
(7) make engaging recessed part 44 and 45 engagings of engaging protuberance, and, connecting elements 47 is installed on fitting portion 46 On, thereby the insulating element 41 of each phase is interconnected. By this, each insulating element 41 that can easily interfix.
(8) will prevent movable electrode 26 more by movable electrode 26 collisions when disconnecting by insulating element 41 The buffer 53 of position is bearing in the switch enclosure. For this reason, the movable electrode 26 in the time of not only can preventing from disconnecting is offside, That is, can prevent that not only movable electrode 26 from greatly crossing the release position of regulation and rotating, and can be fast by buffer 52 Speed absorbs the turning power of movable electrode 26, prevents impact that movable electrode 26 stops to produce along with turning power and from rule Decide the release position tripping, can keep stopping on the assigned position.
(9) buffer 52 is also used as that the arc extinguishing gas that takes place when disconnecting blows to away from movable electrode 26 directions The air blowing member, when namely disconnecting, when the collision of movable electrode 26 made buffer 52 distortion, buffer 52 inside were pressed The air of contracting blows the electric arc generating unit to movable electrode 26. The arc extinguishing gas that can take place when disconnecting thus blows to far Direction from movable electrode 26 helps arc extinguishing.
(10) buffer 52 is installed on the peep hole 49, is located at the inside of insulating element 41, thus, needn't Be provided in addition supporting the member of buffer 52.
(11) on the part of insulating element 41, being provided with can be under the state that main cartridge 12 inside are arranged Confirm the peep hole 49 of its internal electrode structure. Thus, after being arranged at insulating element 41 in the main cartridge 12, Also can confirm the states such as electrode structure that formed by the fixed electrode of described insulating element 41 inside and movable electrode etc.
(12) after main cartridge 12 inside are arranged, block peep hole 49 with port lid (port lid member) 51. Thus, the arc extinguishing gas that takes place during disconnection can not leak to insulating element 41 outsides from peep hole 49. Thereby, Between the ground connection in the time of can preventing and disconnect, that is, and the flashover between main cartridge 12 or the bottom box body 13.
(13) port lid 51 be provided be installed on peep hole 49 and when disconnecting with the delaying of the back side collision of movable electrode 26 Rush device 52. For this reason, during disconnection, can prevent that movable electrode 26 from greatly crossing the release position of regulation and rotating.
(14) consist of port lid 51, the arc extinguishing gas that takes place when making it can be also used as disconnection blows to away from movable electricity The air blowing parts of the utmost point 26 directions. That is, by being installed on the buffer 52 on the peep hole 49 and stopping up this buffer 52 The carrying cylinder 53 of outer end opening section consists of port lid 51. Thus, when disconnecting, if movable electrode 26 and buffer 52 collisions are compressed the air of these buffer 52 inside. Described compressed air is by outside blow-off outlet 55 is pressed to Section blows to direction away from movable electrode 26 with the arc extinguishing gas that is stranded in the electric arc generating unit of movable electrode 26, Thereby, be conducive to the arc extinguishing of electric arc.
(15) will be embedded in buffer 52 outer end opening sections carrying cylinder 53 the outer end by with bottom box body 13 The medial surface butt and be supported. Thus, when disconnecting, movable electrode 26 is because producing with buffer 52 collisions Impact be passed to bottom box body 13 and main cartridge 12 through carrying cylinder 53. That is, the insulating element 41 during disconnection To the movement of load side sleeve pipe 22 outer extreme directions, because the outer end of carrying cylinder 53 and the medial surface of bottom box body 13 Butt and be limited. Thereby, can prevent that the position of insulating element 41 when disconnecting is offset.
Again, the 1st example also can be done following change;
(a) as shown in figure 12, can be at the main cartridge 12 medial surfaces configurations tabular block piece 71 as positioning element, Utilize 71 pairs of this block pieces to enter box zero phase sequence currenttransformer 36 and cut-out relay 37 to the movement of main cartridge 12 inboards Limit. So, can will enter box zero phase sequence currenttransformer 36 and cut-out relay 37 remains in the main cartridge 12.
(b) also the described switch of the 1st example can be applied to Figure 13 and Figure 14 with the build-in components supporting device In the shown switch. The figure illustrates switch 11, by with the interlock connecting rod 72 of the action interlock of movable electrode 26, Make arc-chutes 73 follow rotation, and fixedly form gap arc extinguishing section between the arc-chutes 76. Simultaneously, disconnect rear profit With described arc-chutes 73 as the shielding material between static electric shock 23 and the movable electrode 26. In this switch 11, The axle support of interlock connecting rod 72 and control lever 28 stretches out to sidepiece, can contact with the medial surface of insulating element 41. The axle support of interlock connecting rod 72 and control lever 28 is for only being embedded in the structure on the pin 74 from the outside of pin 74. Again, the axle support of arc-chutes 73 1 sides of interlock connecting rod 72 is from being based in the pin 75 of arc-chutes 73 lateral surfaces The outside only be embedded in structure on the pin 75. Drop-proof component such as split pin etc. is set. Again, interlock connecting rod 72, The formation switch build-in components such as arc-chutes 73, pin 74 and control lever 28. Like this, interlock connecting rod 72 and control The axle support of bar 28 is mobile because the butt with insulating element 41 medial surfaces is restricted to side surface direction, can So that interlock connecting rod 72 and control lever 28 are remained on the assigned position.
(c) enter on box zero phase sequence currenttransformer 36 and cut-out relay 37 1 sides and also elastic pressurized section can be set. That is, Shown in Figure 15 (a), Figure 15 (b), enter the sleeve pipe jack of box zero phase sequence currenttransformer 36 and cut-out relay 37 Also can arrange on 36a, the 37a periphery corresponding with main cartridge 12 medial surfaces and have flexible polylith elastic pressurized lug 71. So can utilize the elastic force of elastic pressurized lug 71, will enter box zero phase sequence currenttransformer 36 and the relay that opens circuit Device 37 elasticity are pressed to the inboard of main cartridge 12.
(d) as shown in figure 16, the also helical spring 77 of replaceable one-tenth with insulating properties of the 31c of elastic pressurized section. So, the elastic force of helical spring 77 can be utilized, box zero phase sequence currenttransformer 36 and cut-out relay 37 bullets will be entered Property is pressed to the inboard of main cartridge 12.
(e) shown in Figure 17 (a), Figure 17 (b), the 31c of elastic pressurized section also can be made of polylith lug 78. Each piece lug 78 is made radial periphery from sleeve pipe jack 36a and is stretched out. Sleeve pipe in each lug 78 inboard is inserted The periphery place of hole 36a is formed with annular flange 79. The inboard face of flange 79 with enter box zero phase sequence currenttransformer 36 and Cut-out relay 37 butts. So also can utilize the elastic force of the radial lug 78 of polylith, will enter the box zero phase-sequence and become Stream device 36 and cut-out relay 37 elasticity are pressed to the inboard of main cartridge 12.
(f) sealing 31b and the 31c of elastic pressurized section also can make respectively independently member. So, by main box Accompany sealing 31b between body 12 and flange 21a, the 22a, can be with the main cartridge 12 inside and outside airtight conditions that keep. By the elastic force of the 31c of elastic pressurized section, can box zero phase sequence currenttransformer 36 and cut-out relay 37 will be entered again, Elasticity is pressed to the inboard of main cartridge 12.
(g) above-described embodiment is to form engaging recessed part 44 at a side sidewall 41a of insulating element 41, at it in addition One side sidewall 41b is upper to form engaging protuberance 45, but also can form card at a side sidewall 41a of insulating element 41 Close protuberance 45, form engaging recessed part 44 at its opposite side sidewall 41b. So, by the sidewall that is adjoining each other The mutual engaging of the engaging recessed part 44 on 41a, the 41b and engaging protuberance 45 can prevent each insulating element 41 edge Sidewall 41a, 41b direction relatively move.
(h) in this example, be to be embedded in each fitting portion 46 by the embedded hole 47a with connecting elements 47 And connect the insulating element 41 of each phase. But also can form embedded hole 47a in insulating element 41 1 sides, at connecting elements 47 1 sides form fitting portion 46. So, can interconnect each insulating element 41.
(i) in this example, by being formed at the peep hole 49 supporting buffers 52 on the insulating element 41. But also available additive method replaces, as shown in figure 18, and by being fixed in main cartridge 12 or bottom box body 13 medial surfaces On the support 71 supporting buffers 52 as supporting arrangement. So also can make by the collision with buffer 52 Movable electrode 26 stops to the rotation that disconnects direction.
The 2nd example
Below, with reference to Figure 19-Figure 23, use the supporting structure of movable electrode with regard to the switch of the present invention's the 2nd example Be described.
As shown in figure 19, on the mutual relative left side wall 210a and right side wall 210b of switch box body 210, with Each phase in the three-phase (only showing a phase among the figure) is relative state mutually, runs through and is supporting mains side sleeve pipe 211 And load side sleeve pipe 212. Such as Figure 19 and shown in Figure 23, be equipped with the cross section in the inner of mains side sleeve pipe 211 and be Octagonal fixed electrode 213 roughly. The a pair of conical surface of both sides along its length, the top of fixed electrode 213 becomes Be guiding face 213a, and the central two sides of fixed electrode 213 become energising contact-making surface 213b.
As shown in figure 19, be equipped with conducting rod 214 at the inner end of load side sleeve pipe 212, this conducting rod 214 Be supported with pivotally the base end part of movable electrode 216 by electrode position governor motion 215.
The middle part of movable electrode 216 is connected with drive link 218 by connecting axle 217, this drive link 218 The upper end be connected with control lever 219. And, but control lever 219 is by the open-and-close mechanism section of peripheral operation (among the figure Do not show) when rotating, movable electrode 216 is cut between closing position and locked position of coupler with respect to fixed electrode 213 Change.
Below, be described with regard to electrode position governor motion 215. As shown in figure 23, conducting rod 214 Formation cross-sections Be drum type, its top ends on fore-and-aft direction (with the length direction of conducting rod 214 in the same way) form with predetermined distance The two screw 214a of place, 214b. The central portion base plate of fixed support plate 221 and the top downside of conducting rod 214 connect Touch, bolt 222 inserts among the hole 221a set on this bottom plate, screws up with screw 214a, 214b, will consolidate Deciding support plate 221 is anchored on the conducting rod 214. The support plate of the level of extending about fixed support plate 221 has The 221b of section, 221c are formed with screw 221d, 221e on two supporting board 221b, the 221c.
On fixed support plate 221 tops electrode support member 223 is installed. This electrode support member 223 is by from the front Be seen as lengthwise hairpin body 223a and, lateral direction horizontal buckling in both sides forms to the left and right in its both sides, lower end Adjustable plate 223b, 223c consist of. Be formed with the spiral shell with fixed support plate 221 on adjustable plate 223b, the 223c Hole 221d, 221e are corresponding, left and right directions is long and the more following set bolt 224 in aperture, 225 threaded portion outside Adjustment hole 223d, 223e that the footpath is slightly big.
The bolt 224 that inserts the below from adjustment hole 223d is screwed up on screw 221d, from adjustment hole 223e The bolt 225 that inserts the below is screwed up on screw 221e. Be formed with axle support holes 223f on the body 223a, Be interspersed with connecting pin 226 on this axle support holes 223f, utilize this connecting pin 226 to make the base end part of movable electrode 216 Be supported rotationally. Be formed on the outer screw section of connecting pin 226 top ends and screwed up nut 227, at nut 227 And be folded with helical spring 228 and packing ring 229 between the body 223a of electrode support member 223. Movable electrode 216 Comprise pair of plates shape movable touch knife 216a, 216b, and respectively with it overlapping from two movable touch knife 216a, the 216b outside Tabular reinforcement 216c, 216d.
Below, be described with regard to the action of the supporting device of the movable electrode 216 of switch.
Under the "on" position of the movable electrode 216 shown in solid line among Fig. 9, in case control lever 219 lifted upward, By drive link 218, connecting axle 217 is also lifted upward, movable electrode 216 centered by connecting pin 226, Upward swing. For this reason, movable electrode 216 is switched to the release position shown in Figure 19 dotted line from closure state. On the contrary, if control lever 219 in Figure 19, is shifted to the below from release position shown in the dotted line, then movable electrode 216 Be switched to the closing position shown in the solid line.
Below, narrate simultaneously effect and the structure of the supporting device of movable electrode 216.
(1) fixed support plate 221 is set below the top of conducting rod 214, with bolt 222 fastening should fixingly propping up Board 221. Supporting board 221b, 221c in the left and right sides of fixed support plate 221 form screw 221d, 221e. Bolt 224,225 insertions are formed on adjustable plate 223b, the 223c of electrode support member 223 Slotted hole shape adjustment hole 223d, 223e, this bolt 224,225 is screwed up in screw 221d, 221e. Thus, At the supporting board 221b of fixed support plate 221, above the 221c, electrode support member 223 can be done with respect to leading Adjusting (the arrow of the adjusting of the left and right horizontal direction of the central shaft S of electric pole 214 (the arrow T of Figure 23) and turned position M). Can regulate thus the mounting position of movable electrode 216, it can be installed on fixed electrode 213 normal On the appropriate location that cooperates.
(2) in the 2nd example, the upper surface bearing electrode support member 223 in fixed support plate 221 makes Bolt 223,225 screws up in screw 221d, 221e from the top. Thus, electrode support member 223 for The fitting operation of fixed support plate 221 carries out easily, also is convenient to carry out the position adjustments behaviour of electrode support member 223 Do.
Again, the 2nd example also can be done following change.
As shown in figure 24, electrode support member 223 is made by bolt 222 knot fastening with respect to conducting rod 214 Structure forms the U word shape 223g of section that is supported on conducting rod 224 upper sides at electrode support member 223, at it Circular port 223h and slotted hole 223i are formed on the bottom. Be provided with interspersed the company in the upper end of electrode support member 223 again, Meet the axle support holes 223f of pin 226. Bolt 222 through hole 223h in two bolts 222 screw up in leading The screw 214a of electric pole 214 under this state, makes electrode support member 223 make level centered by bolt 222 To rotation, another bolt 222 is passed hole 223i screw up screw 214b in conducting rod 214, carry out electrode and prop up Hold the adjusting of the installation site of member 223. Upper example and above-mentioned the 2nd example relatively can reduce component number.
Also can form circular port 214c and slotted hole 214d at conducting rod 214 as shown in figure 25, cover in formation Screw 223j, 223k are formed on the bottom of the U word shape 223g of section of the electrode support member 223 of lid conducting rod 214. Also can with bolt 222,222 from top patchhole 214c and slotted hole 214d, screw up in screw 223j, 223k. Should Example and above-mentioned the 2nd example relatively can reduce component number. In addition, be preferably, bolt 222 makes The bolt with hexagon ring with easy rotation.
In the example that is shown in Figure 24 and Figure 25, hole 223h can make slotted hole, and hole 214c also can make slotted hole.
The 3rd example
Below, with reference to Figure 26 and Figure 27, with regard to the gas switch of the 3rd example of the present invention movable electrode structure Be described.
As shown in figure 26, on the mutual relative left side wall 311a and right side wall 311b of switch main cartridge, with three Mutually each is relative state mutually, runs through the sleeve pipe 313 that is supported with mains side sleeve pipe 312 and load side. Be provided with the cross section in the end nipple of mains side sleeve pipe 312 and be octagonal fixed electrode 314 roughly. Fixed electrode 314 Both sides along its length, top, be formed with a pair of taper guiding face 314a, and in the both sides of fixed electrode 314 Part becomes energising contact-making surface 314b between the face.
Be equipped with conducting rod 315 at the inner end of load side sleeve pipe 313, pass through pivot pin 316 on this conducting rod 315 Be supported with pivotally the base end part of two boards shape movable electrode 317. As shown in figure 27, movable electrode 317 has A pair of movable touch knife 317a, 317b. Two movable touch knife 317a, 317b form flat board by the metal material with electric conductivity The sickle shaped of shape. The substantial middle position of two movable touch knife 317a, 317b is inserted with connecting axle 318, makes it can do one The body revolution.
As shown in figure 26, in the top ends of two movable touch knife 317a, 317b, contact with fixed electrode 314 when namely closing a floodgate The position be provided with contact site 321, this contact site 321 axis with respect to movable electrode 314 when closing a floodgate becomes roughly to hang down The orthogonal fork. On contact site 321, by being formed at the slit 322 on the substantial middle position, cut apart two strands of formation The front side contact chip 323 of shape and rear side contact chip 324. Such as Figure 26 and shown in Figure 27, front and back two contact chips 323, 324 medial surface, that is, the medial surface of contact site 321 when closing a floodgate respectively as with the energising of fixed electrode 314 The energising face 321a of contact-making surface 314b contact.
Stopping means
Such as Figure 26 and shown in Figure 27, on the top of the tip side between two movable touch knife 317a, the 317b, accompany circle Tubular spacer block 331. The outside inserting bolt 332 that spacer block 331 passes through from a side movable touch knife 317a, and from opposite side The outside clamp nut 333 of movable touch knife 317b, thus be fixed between two movable touch knife 317a, the 317b. Moving two The fixed position of the upper setting of contact knife 317a, 317b spacer block 331 is closed so that movable electrode 317 is shifted to from the release position When co-bit is put and fixed electrode 314 do not disturb, and from the top of the contact site 321 of two movable touch knife 317a, 317b Hold nearest.
Between two movable touch knife 317a, 317b, be fixed with under the state of spacer block 331 front and back two contact chips 323,324 Can take the fixed position of spacer block 331 as fulcrum, do to do crooked towards the direction that is separated from each other and direction close to each other Displacement. Again, spacer block 331, bolt 332 and nut 333 are construed as limiting the approaching or branch of two movable touch knife 317a, 317b From restraint device.
On the other hand, be connected with pivotally the end that switch is used drive link 341 on the connecting axle 318, this switch is used Be connected with pivotally an end of control lever 342 on the other end of drive link 341. Control lever 342 actions connect But the open-and-close mechanism section (not shown) in peripheral operation. Therefore, movable electrode 317 can be followed open-and-close mechanism section Drive, centered by pivot pin 316, in the closing position shown in Figure 26 solid line and the release position shown in the double dot dash line Between mobile.
The effect of the 3rd example
Below, be described with regard to the effect of the movable electrode structure of the switch of said structure.
If drive open-and-close mechanism section, by control lever 342 and folding with drive link 341, two movable touch knife 317a, 317b is namely take pivot pin 316 as the revolution fulcrum, and to closing direction, namely rotate in the left side among Figure 26.
In addition, when the top ends of two movable touch knife 317a, 317b and the top of the guide surface 314a on the movable electrode 314 When section contacts, produce electromagnetic attraction between two movable touch knife 317a, 317b, two movable touch knife 317a, 317b want Towards direction displacement close to each other. But the top between two movable touch knife 317a, 317b is provided with spacer block 331. Therefore, can be actually because of the zone of electromagnetic attraction bending deflection spacer block on two movable touch knife 317a, the 317b Till the subregion that 331 fixed position is arrived with the energising contact-making surface 314b of contact site 321 contacts.
During combined floodgate, logical from the fixed position of the spacer block 331 on two movable touch knife 317a, the 317b to contact site 321 The part of electric interface 314b contact, because the effect of electromagnetic attraction can be take the fixed position of spacer block 331 as fulcrum, Towards direction bending, displacement close to each other. However, its addendum modification is wanted than the occasion that spacer block 331 is not set Little. It is the reasons are as follows.
Distance between the size of electromagnetic attraction and two movable touch knife 317a, the 317b is inversely proportional to, respectively with two movable touch knifes The length of 317a, 317b and with 1/2 square be directly proportional of the electric current of flow through two movable touch knife 317a, 317b. And And in the 3rd example, in fact attraction force acts can be seen in the length of the parallel conductor of contact site 321 Work can because of electromagnetic attraction bend displacement the zone length (namely from the fixed position of spacer block 331 to connect Distance between the part of the energising contact-making surface 314b contact of tactile section 321). On the other hand, spacer block 331 be not set Occasion, attraction force acts can be regarded as from folding with drive link 341 in the parallel conductor length of contact site 321 The axle bearing position to part that the energising contact-making surface 314b of contact site 321 contacts between distance. Therefore, with The occasion of spacer block 331 is not set relatively, attraction force acts shortens in the length of the parallel conductor of contact site 321, because of This two movable touch knife 317a, 317b are difficult to be subjected to the impact of electromagnetic attraction. That is the electromagnetism that, acts on contact site 321 is inhaled Gravitation reduces.
Therefore, when closing a floodgate, two movable touch knife 317a, 317b can not cause because of the impact of electromagnetic attraction mutual it Between too close, so MIN interval in the time of can keeping closing a floodgate. Thereby, two movable touch knife 317a, 317b not can with With the sliding-contact of the guide surface 314a of fixed electrode 314 and stop halfway, and with the fixed bit of spacer block 331 Being set to fulcrum expands. That is, two movable touch knife 317a, the 317b electrode 314 that is fixed is pushed open.
At this moment, because the apex portion of two movable touch knife 317a, 317b is passed through spacer block 331 by bolt 332 and nut 333 Two movable touch knife 317a, 317b interconnect, so can significantly not open on the direction that is separated from each other. Thereby, Two movable touch knife 317a, 317b are stable for the chucking power of fixed electrode 314, can guarantee the contact of contact site 321 In stable condition.
Two movable touch knife 317a, 317b be when direction is rotated left again, and the energising contact-making surface 321a of contact site 321 is roughly Parallel and the regulation contact depress, contact with the energising contact-making surface 314b of static electric shock point 314 from both sides respectively. And When two movable touch knife 317a, 317b move to closing position shown in Figure 26 solid line, close a floodgate and finish.
Under above-mentioned "on" position, the energising contact-making surface 321a of contact site 321 is with the state of almost parallel, from the outside Be contacted with the energising contact-making surface 314b of fixed electrode 314. Thus, the energising contact-making surface 321a mat of contact site 321 By the elastic force of two movable touch knife 317a, 317b self, to the energising contact-making surface 321a of contact site 321 roughly equal Even contact is depressed and is contacted. Again, because corresponding with the whole contact of energising contact-making surface 314b at energising face 314 Two faces in zone are in contact with one another, and therefore, can guarantee enough energising areas.
Like this, according to the 3rd example, can obtain following effect.
(1) from folding with the axle bearing position of drive link 341 to the zone on contact site 321 tops, closing Establish during lock and 314 positions of not disturbing of fixed electrode (apex portion of two movable touch knife 317a, 317b) Put spacer block 331. The apex portion of this two movable touch knife 317a, 317b in the zone of not disturbing fixed electrode 314 Apical position near contact site 321. For this reason, in two movable touch knife 317a, 317b, can be actual in electromagnetic attraction The length of the effect of power and the displacement part of bending is (that is, in two movable touch knife 317a, 317b, to contact site 321 The length of parallel conductor of effect electromagnetic attraction) lack when spacer block 331 is not set, act on contact site 321 On electromagnetic attraction diminish. Because the size of electromagnetic attraction is proportional to electric current and flows through unidirectional parallel conductive The length of body. And, diminish because act on the electromagnetic attraction of contact site 321 when closing a floodgate, so two movable touch knifes The contact site 321 of 317a, 317b can be too not close, the MIN interval in the time of can keeping closing a floodgate. From And two movable touch knife 317a, 317b can do smooth and easy for the chucking power of fixed electrode 314 in the time of can stablizing combined floodgate Combined floodgate.
Between (2) two movable touch knife 317a, the 317b only by the fixing spacer block 331 of bolt 332 and nut 333, so, The structure of movable electrode 317 is also uncomplicated.
The apex portion of (3) two movable touch knife 317a, 317b interconnects by spacer block 331. Thus, during combined floodgate two Movable touch knife 317a, 317b can be along with expanding significantly with the sliding-contact of fixed electrode 314. Thereby, can Guarantee that two movable touch knife 317a, 317b are for the MIN chucking power (curable grip) of fixed electrode 314.
(4) be provided with fixed position take spacer block 331 as fulcrum in the top ends of two movable touch knife 317a, 317b, can Be separated from each other and bend front and back two contact chips 323,324 of displacement of direction close to each other. Like this, exist During combined floodgate, front and back two contact chips 323,324 are because the sliding-contact with fixed electrode 314 expands, with connecing of regulation Press with the two sides of fixed electrode 314 and contact. Thus, making smoothly, combined floodgate becomes possibility.
The 4th example
Below, the movable electrode structure of the gas switch of the present invention's the 4th example is described. The 4th example is one Plant air switch, itself and the 3rd example difference are: it arranges arc-extinguishing unit in fixed electrode one side. For this reason, the element structure identical with the 3rd example is marked with identical mark here, and the repetitive description thereof will be omitted.
Such as Figure 28 and shown in Figure 29, be equipped with conducting rod 351 on the inner of mains side sleeve pipe 312, this conducting rod 351 The bottom be fixed with tabular fixed electrode 352 with bolt and nut. Again, on the inner one side of mains side sleeve pipe 312 Be provided with arc-extinguishing unit 353, to cover conducting rod 351 and fixed electrode 352.
As shown in figure 29, arc-extinguishing unit 353 comprises tabular arc-chutes installation component 354 and arc-chutes 355. Go out The upper side of arc chamber installation component 354 relative conducting rods 351 is fixing with bolt 356. Arc-chutes 355 cover from the below Lid conducting rod 351 and fixed electrode 352, with bolt 357 be fixed on arc-chutes installation portion 354 below. Arc extinguishing 355 inside, chamber are gap arc-chutes 358, and on a side sidewall of these gap arc-chutes 358 lower ends, being formed with can Two insert port 359a, 359b by two movable touch knife 362a, 362b.
On the other hand, as shown in figure 28, on the conducting rod 315 of load side sleeve pipe 313, with pivot pin 316 for turning to Activity supporting point is supporting movable electrode 361 pivotally. As shown in figure 29, movable electrode 361 comprises a pair of movable contact Cutter 362a, 362b. Two movable touch knife 362a, 362b form dull and stereotyped L word shape. At two movable touch knife 362a, 362b Between, accompany at the top (the intersection point position that in the L word shape, is equivalent to two lines of form right angle) of tip side Spacer block 331, and fixing with bolt 332, nut 333. The tip side top of this two movable touch knife 362a, 362b exists During combined floodgate, in the zone of not disturbing arc-extinguishing unit 353, be positioned at the position near the top contact site.
Drive open-and-close mechanism section, then movable electrode 361 is centered by pivot pin 316, at the combined floodgate shown in Figure 28 solid line Mobile between the release position shown in position and the double dot dash line. Two movable touch knife 362a, 362b pass through respectively arc-extinguishing unit 353 two insert port 359a, 359b enter in the gap arc-chutes 358 with fixed electrode 353 contacts or separate. At this moment, spacer block 331 can not consist of interference to arc-extinguishing unit 353. Thereby, according to this example can obtain with The described identical effect in (1) in the 3rd example-(4).
Again, the 3rd and the 4th example also can be done following after changing enforcement.
In the 3rd example, do not disturbing two movable touch knife 317a of fixed electrode 314, the top of 317b, again, In the 4th example, not disturbing two movable touch knife 317a of arc-extinguishing unit 353, the top of 317b, establish respectively Put spacer block 331. Perhaps, also can change into spacer block 331 is being set with upper/lower positions. That is, from two movable touch knife 317a, 317b Between folding with the axle bearing position (being inserted with the position of connecting axle 318) of drive link 341 to contact site 321 Arbitrary position on top is not so long as disturb the position of arc-extinguishing unit 353 or fixed electrode 314, spacer block 331 Arbitrary position can be arranged at, for example, two movable touch knife 317a, 317b or two movable touch knife 362a, 362b can be arranged on The top near. So, compare electromagnetic attraction when more not being vulnerable to close a floodgate with the occasion that spacer block 331 is not set Impact.
The 5th example
Below, with reference to Figure 30-Figure 34, ending of conducting rod in the switching sleeve pipe of the present invention's the 5th example is described Rotation mechanism.
The installing hole 411a of switch box body 411 is penetrated with the sleeve pipe 413 of tubular, and this sleeve pipe 413 is by pressing piece 412 Press fixingly, be formed with diameter between the inner chamber 413a bottom surface 413b of sleeve pipe 413 and the end face 413c of sleeve pipe 413 The jack 413d of the conducting rod 414 of the small-diameter sized that size is little than inner chamber 413a internal diameter size. Slotting by being formed with The bottom surface 413b of the opening of hole 413d forms the engaging end difference 413e of conducting rod 414.
The jack 413d of sleeve pipe 413 runs through and is supported with conducting rod 414, is formed with riveting on the end of this conducting rod 414 Hole 414a. Strand 416 in rivet hole 414a riveted joint leaded 415. Prominent in the end of conducting rod 414 periphery Go out to form snap flange 414b. This snap flange 414b is sticked on the engaging end difference 413c by packing ring 417. Form outer screw section 414c in the pars intermedia periphery of conducting rod 414, on this outer screw section 414c in parallel to each other Be formed with planar portions 414d, 414e (with reference to Figure 33, Figure 34) as notch part. Have again, conducting rod 414 Be formed with electrode installation portion 414f on the end, be formed with through hole 414g on its base end part.
Chimeric being fixed with around the containment member 418 of the outer screw section 414c of conducting rod 414 in the end of sleeve pipe 413. The insulating materials such as containment member 418 usefulness nonferrous metal, rubber, synthetic resin form tubular. As shown in figure 31, close The envelope member 418 by cylindrical portion 418a, be formed at cylindrical portion 418a one end base plate 418b, run through pin thread The perforation 418c of the 414c of section consists of. The base plate 418b of containment member 418 is fixed in sleeve pipe 413 with binding agent 419 End face 413c on. Equally spaced be formed with base plate 418b one on the inner peripheral surface of cylindrical portion 418a again, A plurality of (for example 4) spline engaging recessed part 418d. Have again, be formed with groove on the outer peripheral face of cylindrical portion 418a The 418e of section.
Screwed up nut 420 on the outer screw section 414c of conducting rod 414, this nut 420 and containment member 418 Accompany spring washer 421 and spline plate 422 between the base plate 418b.
Below, according to the structure of the exploded perspective view of Figure 32 explanation spline plate 422. Spline plate 422 is seen as from the front Circular, the central portion of its flat part 422a be formed with run through conducting rod 414 outer screw section 414c roughly Square shape jack 422b. In the left and right sides of flat part 422a, with the continuous rake 422c of flat part 422a, 422d is towards the lopsidedness bending opposite with containment member 418. Again, on the edge, the left and right sides of jack 422b Be formed with incision board 422e, 422f as the incision teat, this incision board 422e, 422f are from jack 422b Base plate 418b lopsidedness to containment member 418. The inclination angle of rake 422c and incision board 422e, Identical with the relative flat part 422a in inclination angle of rake 422c and incision board 422f. Rake 422c, 422d The end and the both ends of flat part 422a on be formed with containment member 418 4 engage protuberance 418d engaging Engaging recessed part 422g.
As shown in figure 30, be rotatably mounted with movable electrode 423 on the electrode installation portion 414f of conducting rod 414. These movable electrode 423 nationalitys can be relatively arranged on the fixed electrode in the switch box body 411 by not shown open-and-close mechanism Do corresponding contact, disengaging.
Below, be described with regard to the assemble method of conducting rod in the switching sleeve pipe.
At first, to the rivet hole 414 of monomer conducting rod 414, insert the strand 416 of lead-in wire 415, undertaken by riveting machine Riveted joint.
Secondly, use the inner chamber 413a that binding agent 419 is fixed with the monomer sleeve pipe 413 of containment member 418, inciting somebody to action Seal 417 is embedded under the state of conducting rod 414, with the inner chamber 413a one of this conducting rod 414 from sleeve pipe 413 Side runs through among the jack 413d.
Thereafter, from the chimeric spline plate 422 of electrode installation portion 414f of conducting rod 414, as shown in figure 33, with spline Each engaging recessed part 422g of plate 422 is sticked in each engaging protuberance 418d of containment member 418. At this moment, end Incision board 422e, the 422f of flap 422 for flat part 414d, the 414e of conducting rod 414 with specified gap Relatively, the top ends of incision board 422e, 422f is connected to the base plate 418b of containment member 418.
Again helical spring 421 is embedded in outer screw section 414c, then nut 429 is screwed up in outer screw section 414c On. Then, screw in nut 420, press spline plate 422 by spring washer 421. Thus, so that rake 422c, Strain takes place and is parallel to flat part 422a in 422d. Follow this strain, incision board 422c, 422f The top be parallel to too the strain of flat part 422a. In the final stage that nut 420 screws in, end Rake 422c, the 422d of flap 422 and incision board 422e, 422f the is state parallel with flat part 422a, Planar portions 414d, the 414e of the top incision conducting rod 414 of incision board 422e, 422f.
As mentioned above, after the assembling that finishes 414 pairs of sleeve pipes 413 of conducting rod, sleeve pipe 413 is penetrated switch enclosure The installing hole 411a of body 411 is fixing with pressing piece 412. The electrode installation portion 414f of conducting rod 414 is upper to be installed Movable electrode 423 is arranged.
Secondly, narrate simultaneously structure and the effect of the rotation preventive mechanism of conducting rod on the switching sleeve pipe.
(1) form jack 422b at the flat part 422a of spline plate 422, to this jack 422b cut out form with Incision board 422e, 422f that the planar portions 414d of conducting rod 414,414e are corresponding, therefore, with nut 420 When fastening, planar portions 414d, the 414e of incision board 422e, 422f incision conducting rod 414 can reliably stop Conducting rod 414 is sleeve pipe 413 interior relatively rotating, and can prevent that it is loosening.
Thereby, after switch box body 411 that will be as shown in figure 30 is installed on the electric pole etc., will draw from sleeve pipe 413 When the lead-in wire 415 that goes out is installed on other not shown conducting terminals, if the torque of the direction of arrow is in lead-in wire On 415, then conducting rod 414 wish in the jack 422b of spline plate 422 is rotated. Yet, because conducting rod 414 And not loosening between the spline plate 422, so the assembling position of movable electrode 423 can not depart from normal position. Its result can correctly keep the corresponding relation of movable electrode 423 and fixed electrode, carries out swimmingly opening and closing movement.
(2) the flat part 422a at spline plate 422 is provided with rake 422c, 422d, because be with this inclination The 422c of section, 422d and incision board 422e, 422f are formed at respectively on the same inclined plane, so, with above-mentioned When nut 430 is fastening, can increase the cutting-in force of incision board 422e, 422f.
Again because in the process that rake 422c, 422d become parallel with flat part 422a, its rake 422c, The engaging recessed part 422g that 422d forms is pushed on the engaging protuberance 418d, so can make containment member 418 and end The fastening state of flap 422 becomes firmly.
(3) spline plate 422 can be by a plate compression moulding, and it is easy to manufacture.
(4) because the inner peripheral surface of containment member 418 is provided with engaging protuberance 418d, the periphery shape of spline plate 422 Become engaging recessed part 422g is arranged, therefore, can increase the external diameter of containment member 418 and spline plate 422, by Simple structure can stop relatively rotating of they.
(5) owing to be with the inner face of binding agent 419 fixed sleevings 413 and the base plate 418b of containment member 418, Therefore, the dielectric strength of two component spaces be can improve, charging part (conducting rod 414) and switch box body 411 strengthened Between insulation. Its result can improve proof pressure, the outstanding size of reentrant bushing in switch box body 411, Make whole box body miniaturization.
Again, the 5th example of the present invention also can be done following change.
As shown in figure 35, can omit rake 422c, the 422d of spline plate 422. At this moment, incision board 422e, 422f makes strain by nut 420 and spring washer 421, planar portions 414d, the 414c of incision conducting rod 414.
As shown in figure 36, can engage protuberance 418f prominent the establishing of the base plate 418b of containment member 418, and The upper connecting hole 422g that forms as engaging recessed part of the flat part 422a of spline plate 422.
As shown in figure 37, also the profile of spline plate 422 can be made square, in the base plate of containment member 418 418b is formed for limiting the limiting holes 418g of its profile, to stop the relative of containment member 418 and spline plate 422 Rotate.
In other examples as shown in figure 36, also can be when molded formation containment member 418, with spline plate 422 Insert and be shaped. At this moment, containment member 418 is fixedly connected with spline plate 422 relatively, and it can not be relatively rotated.
Formed engaging recessed part 422g also can uniformly-spaced arrange 2,3 or 6 places on spline plate 422 neighborings.
The 6th example
Below, with reference to Figure 38-Figure 42, the switch box body of the 6th example of the present invention is described.
As shown in figure 42, switch box body 511 covers four square box shape main cartridges, 412 Hes by lower ending opening, covers main The ends four square box shape box cover 513 that has of box body 512 512a of lower ending opening section consists of. As shown in figure 41, leading The 512a of the lower ending opening section periphery of box body 512 is formed with cubic annular flange portion 512b. At four of flange part 512b Corner part respectively all-in-one-piece is given prominence to formation brace 512c laterally. On the other hand, the upside of box cover 513 is opened The periphery of oral area 513a is formed with the flange part 513b of cubic ring-type, and its four bights are integral respectively outwards The side-prominent brace 513c that is formed with. Between flange part 512b and flange part 513b, accompany seal 514, Be formed on the upper jack 513d that forms of jack 512d on each brace 512c and each brace 513c and run through Inserting bolt 515. As shown in figure 40, by the nut 516 that screws up on bolt 515, can be with flange part 512b Be fixed on the seal 514 with 513b. Again, in the 6th example, as shown in figure 41, main cartridge 513 Jack 512d be circular, the jack 513d of box cover 513 is elongated hole. Thus, can to box cover 513 with The binding site of main cartridge 513 is finely tuned.
Such as Figure 38, shown in Figure 39, flange part 512b forms L by horizontal plate part 512e and vertical plate part 512f The cross section of word shape. Again, flange part 513b is formed by the inclination board 513e of cross section by Eight characters shape. Protruding Be formed be used to its cross section of accommodating seal 514 between edge 512b and the flange part 513b and be roughly triangle Seal receiving space 517.
Seal 514 comprise main body 514a, with the main body shape all-in-one-piece triangle 514b of section, be formed at main body 514a And a plurality of sealed batten 514c of triangle section 514 outsides. Circumferential lateral surface at the 514b of triangle section becomes Form the snap-latch piece 514d of many places (in the 6th example, as shown in figure 41, being 5 places). Card Close sheet 514d as shown in figure 39, be sticked in the limit, lower end of the vertical plate part 512f of flange part 512b. Such as Figure 41 institute Show, be formed with respectively the raised line 514e that is the flat circle arcuation on the outer peripheral face in 4 bights of seal 514.
As shown in figure 42, mains side sleeve pipe 521 and the load of three-phase is installed on main cartridge 512 left and right sides again, Side sleeve pipe 522. Again, be provided with not shown fixed electrode and movable electrode in the switch box body 5211, grasp by folding Make mechanism's movable electrode and swing, carry out access and the disconnection of circuit.
The assembling of switch main cartridge 511 is as described below to be carried out. Turned upside down main cartridge 512 on desk (not shown), Installation seal 514 on flange part 512b. At this moment, each snap-latch piece 514d is sticked in vertical plate part 512f. Secondly, the flange part 513b of configuration box lid 513 on seal 514 upwards interts bolt 515 and passes through The jack 512d of brace 512c and the jack 513d of brace 513 screw up nut 516 in bolt 515, By this, seal 514 can be anchored between flange part 512b and the 513b.
Below, the effect of narration switch box body 511.
(1) the flange part 512b on the end limit of the peristome 512a that is formed at main cartridge 512 and be formed at lid Between the flange part 513b on the ora terminalis of the peristome 513a of body 513, Formation cross-section is the seal of triangle Receiving space 517. By this, shown in Figure 38-40, seal 514 is at flange part 512b and flange part 513b Between fastened in, seal 514 can be not laterally or inboard displacement is taken place, and remains in suitably but be held The position. Again, flange part 512b as shown in figure 38, its bend only is C1, C2 two places, can rush easily Molded operation.
(2) outside of seal 514 is formed with snap-latch piece 514d, makes this snap-latch piece 514d be sticked in flange part 512b The end limit of vertical plate part 512f. For this reason, making under seal 514 and the state that flange part 512b contacts, press During the 513b of belling edge, can stop the position deviation of seal 514 side direction in the level, with seal 514 Clamping remains on the appropriate location. Therefore can prevent at seal 514 at the shape that breaks away from seal receiving space 617 Assembled under the attitude.
(3) owing to being formed with many sealed batten 514c in the up and down two sides of seal 514, so can improve The sealing on the composition surface of seal 514 and flange part 512b and 513b.
(4) owing to be formed with a plurality of laterally outstanding raised line 514e in the up and down two sides of seal 514, because of This protrudes from the vertical plate part 512f butt that the outside forms, by this on raised line 514e and the flange part 512b corner part Seal 514 can be kept in position.
Again, the 6th example also can be done following change and specialize.
Shown in Figure 43 (a) example system with the inclination board 513e of flange part 513b as an inclination board, Form the snap-latch piece 514d that is sticked in inclination board 513e outer end edges on the part outer peripheral face of seal 514. Such as Figure 43 (b) shown in, also can form snap-latch piece 514d it is sticked on the vertical plate part 512f.
Shown in Figure 43 (c), also can form flange part 512b, water by inclination board 512g and vertical plate part 512f The flat flange part 513b that forms box cover 513. Also can be shown in Figure 43 (d), by inclination board 512g and inclination Board 513e forms two flange part 512b and 513b, and forms vertical plate part 512f and vertical plate part 513f.
And for example shown in Figure 43 (e), flange part 512b is bent into the cross section that is consisted of by two inclination board 512g Word shape, and horizontal curvature forms flange part 513b.
In the example shown in Figure 43 (a)-(e), the bend of flange part 512b is C1, C2 two places, can Easily carry out the punch forming operation. Again, in the example shown in Figure 43 (a)-(c), (e), flange part 513b Bend only be a place, its cross sectional shape is simple, the punch forming processing ease.
Shown in Figure 44 (a), the cross section of seal 514 or make toroidal, or shown in Figure 44 (b), do The ovalisation shape, or shown in Figure 44 (c), make the body of one who has dropped dead by the roadside trapezoidal shape, also can shown in Figure 44 (d), make Swelling-waist shape, or shown in Figure 44 (e), make the rectangle of horizontal length. These seals 514 in use, Its cross section meeting strain is triangle roughly.
As shown in figure 45, also can form in many places on the groove 514f that forms between each sealed batten 514c and interconnect The next door 514g of sealed batten 514c. In Figure 45, one side next door 514g is respectively equipped with 3 at seal 514-4.
At this moment, just in case the part generation poor sealing of the sealed batten 514c of seal 514, impurity enters groove 514f When interior, can prevent that also this impurity from moving to whole groove. Next door 514g is not arranged on groove 514f in abutting connection with the next door again, Same position, but the setting of grinding one's teeth. Can prevent thus the upper strength variance that produces the part of sealed batten 514c, To obtain the evenly whole of sealing surface.
The next door 514g of groove 514f as shown in figure 45 also can be embodied as respectively shown in Figure 44 (a)-(e) Seal 514. Can consider that also it is that leg-of-mutton seal is received that these seals 514 are applied to its cross sectional shape Hold outside the space 517, for example the seal receiving space 517 of parallel shape.

Claims (38)

1. switch build-in components supporting structure, described open relation are intercalated in each with switch with build-in components (36,37) and relatively run through sleeve pipe (21, the 22) end that is supported on main cartridge (12) two side mutually, it is characterized in that,
Between described build-in components and main cartridge, be provided with the insulating properties elastic pressurizing element (31c) of described build-in components being pressed to the main cartridge inboard, in main cartridge, also be provided with the align member (41) of restriction build-in components to the main cartridge medial movement.
2. switch build-in components supporting structure as claimed in claim 1, it is characterized in that, described align member is insulating element (41), described insulating element is located at the fixed electrode (23) of a side cannula tip by covering and is located at opposite side cannula tip, relative fixed electrode rotationally and can carries out the insulation between alternate and ground connection from, the movable electrode (26) that closes.
3. switch build-in components supporting structure as claimed in claim 1 or 2, it is characterized in that, described insulating properties elastic pressurizing element is clipped in the flange that is formed at sleeve pipe, and (21a 22a) and between main cartridge (12) lateral surface, and keeps containment member (31b) airtight inside and outside the main cartridge integrally formed.
4. switch build-in components bearing support, described bearing support is installed on the sleeve pipe that is formed on main cartridge (12) sidewall and runs through portion (12a), it is characterized in that,
Described bearing support is formed by the elastomeric material with insulating properties, for intercalation the tubular support (31a) of sleeve pipe is arranged, and has the elastic pressurizing element (31c, 71,72,73) of build-in components being pressed to the main cartridge inboard.
5. switch build-in components bearing support, described bearing support is installed in the sleeve pipe that is formed on main cartridge (12) sidewall and runs through portion (12a), it is characterized in that,
Described bearing support is formed by the elastomeric material with insulating properties, comprise: intercalation has the tubular support (31a) of sleeve pipe, be located on this support, when the mounting support frame, be sandwiched in sleeve pipe (21,22) (21a 22a) and the sealing between the main cartridge outer wall (31b), and is located on this support, is sandwiched in the elastic pressurizing element (31c between main cartridge medial surface and the build-in components when the mounting support frame flange, 71,72,73)
Described elastic pressurizing element has the elastic force of build-in components being pressed to the main cartridge inboard.
6. switch build-in components bearing support as claimed in claim 5 is characterized in that described elastic pressurizing element and described sealing are integrally formed by the insulating properties material.
7. as claim 4 or 5 described switch build-in components bearing supports, it is characterized in that described elastic pressurizing element forms circular cone shape.
8. as claim 4 or 5 described switch build-in components bearing supports, it is characterized in that described elastic pressurizing element is many pieces of lugs from the oblique extension of support.
9. switch insulation component, described switch runs through on main cartridge (12) two side and is supported with each mutually relative sleeve pipe (21,22), be provided with fixed electrode (23) in the end of a side sleeve pipe (21), and at opposite side sleeve pipe (22) but the end is provided with the movable electrode (26) of relative fixed electrode from, the correspondence of closing rotationally, described insulating element (41) carries out the insulation between alternate and ground connection by this by two electrodes that cover each phase mutually, it is characterized in that
Described insulating element is provided with and prevents the clamping close device (44,45,46,47) that relatively moves between adjacent insulating element.
10. switch insulating element as claimed in claim 9 is characterized in that,
Described clamping close device is formed at respectively between the out-phase of insulating element on the two sides relative mutually on the direction, and is provided with the recess or the protuberance that can engage mutually.
11. as claim 9 or 10 described switch insulating elements, it is characterized in that,
Described clamping close device comprises the connecting elements (47) that interconnects each insulating element.
12. switch insulating element as claimed in claim 11 is characterized in that,
Described connecting elements forms long size shape by the synthetic resin with insulating properties, configuration along its length is formed with a plurality of protuberances or recess (47a) on this connecting elements, and described protuberance or recess (47a) can engage with the recess or the protuberance (46) of upper side that is formed at each insulating element respectively or downside.
13. switch, on its main cartridge (12) two side, run through and be supported with each mutually relative sleeve pipe (21,22), be provided with fixed electrode (23) in the end of a side sleeve pipe (21), and be provided with rotationally in the end of opposite side sleeve pipe (22) can described relatively fixed electrode from the movable electrode (26) of, the correspondence of closing, cover two electrodes by insulating element (41), carry out the insulation between alternate and ground connection by this, it is characterized in that
Be provided with protuberance or recess (44) in a side side of described insulating element, its opposite side side is provided with the recess or the protuberance (45) that can engage with raised part or recess.
14. switch, on its main cartridge (12) two side, run through and be supported with each mutually relative sleeve pipe (21,22), on the end of a side sleeve pipe (21), be provided with fixed electrode (23), and at the sleeve pipe (22) of opposite side but be provided with the movable electrode (26) of relative fixed electrode on the end rotationally from, the correspondence of closing, it is characterized in that
Be provided with buffer component (52) in described box body, described buffer component is when disconnecting and movable electrode butt and make the rotation of movable electrode stop at assigned position.
15. switch as claimed in claim 13 is characterized in that, the arc extinguishing gas that described buffer component takes place when being also used as disconnection blows to the air blowing member (52) away from the movable electrode direction.
16. as claim 14 or 15 described switches, it is characterized in that, described supporting arrangement by by by cover mutually each mutually two electrodes carry out casing shape insulating element (41) supporting of insulating between alternate and ground connection, described buffer component is positioned at insulating element inside.
17., it is characterized in that described buffer component is by bearing support (71) supporting of being fixed on the box body as claim 14 or 15 described switches.
18. switch insulation component, described switch runs through on main cartridge (12) two side and is supported with each mutually relative sleeve pipe (21,22), on the end of a side sleeve pipe (21), be provided with fixed electrode (23), and at the sleeve pipe (22) of opposite side but be provided with the movable electrode (26) of relative fixed electrode on the end rotationally from, the correspondence of closing, described insulating element carries out the insulation between alternate and ground connection by this by covering two electrodes mutually, it is characterized in that
On described insulating element, be provided with inspection hole, by described inspection hole can the state in being located at main cartridge under, confirm the electrode structure that it is inner.
19. switch insulation component as claimed in claim 18 is characterized in that,
After described insulating element has been set up on being arranged at main cartridge, stop up the port lid (51) of described inspection hole.
20. switch insulation component as claimed in claim 18 is characterized in that,
When described port lid is included in and disconnects and the movable electrode butt, make the rotation of movable electrode stop at the buffer component (52) of assigned position.
21. switch insulation component as claimed in claim 20 is characterized in that,
The arc extinguishing gas that described buffer component takes place when being also used as disconnection blows to the air blowing member away from the movable electrode direction.
22. as claim 20 or 21 described switch insulation components, it is characterized in that,
Impact when described buffer component is provided with disconnection is passed to the transmission member (53) of main cartridge.
23. a movable electrode bearing structure for switch, in the described switch, described supporting structure is equipped with the movable electrode (216) that the fixed electrode (213) that can be located at relatively in the switch box body (210) is approaching, separate, it is characterized in that,
Conducting rod (214) end of on the sleeve pipe that is installed on described switch enclosure (210) (212), being supported, support described movable electrode (216) by electrode support member (233), between described conducting rod (214) and electrode support member (223), be provided with and movable electrode (216) is moved adjusting, left and right directions towards the axis direction of conducting rod (214) as fore-and-aft direction move and regulate or left and right directions rotates the electrode position governor motion of regulating (215).
24. a switch movable electrode structure, described structure are used in folding under the driving of drive link (341), a pair of movable touch knife (362a of movable electrode (361), 362b) make resilient clamp, to keep closed circuit state from both sides to fixed electrode (314,352), it is characterized in that
From the folding between two movable touch knifes with the axle bearing position of drive link to the optional position of top contact site and on the position of not disturbing with the set arc extinguishing member (353) of movable electrode and fixed electrode side, being provided with restriction two movable touch knifes separates and approaching stopping means (331,332,333).
25. switch as claimed in claim 24 movable electrode structure is characterized in that, described stopping means is arranged at the position near movable touch knife top contact site.
26. as claim 24 or 25 described switch movable electrode structures, it is characterized in that described movable touch knife is made sickle shaped or L word shape, described stopping means is located at the top of movable touch knife or nearby.
27., it is characterized in that described stopping means is the spacer block (331) that is fixed between two movable touch knifes as claim 24 or 25 described switch movable electrode structures.
28. the switch rotation preventive mechanism of conducting rod in the sleeve pipe, insertion conducting rod (414) in relative box body (411) runs through fixing sleeve pipe (413), make the snap flange (414b) that is formed on the conducting rod (414) and this sleeve pipe (413) inner set engage end difference (413e) butt, be provided with containment member (418) at sleeve pipe (413) end face (413c), with twisting the nut (420) close in the outer screw section (414c) of conducting rod (414) conducting rod (414) is anchored on the sleeve pipe (413), between described containment member (418) and described nut (420), accompany spline plate (422), it is characterized in that, in described sleeve pipe
Be formed with on the described spline plate (422) can with the engaging recessed part (422g) that engages the engaging of protuberance (418d) or engaging recessed part or the engaging protuberance of described containment member (418), on the jack (422b) that is formed at described spline plate (422) central part, be provided with the notch part (414d that can cut the outer screw section (414c) that is formed at conducting rod (414), 414e), prevent the rotating incision teat of described conducting rod (414) (422e, 422f).
29. switch as claimed in claim 28 is characterized in that with the rotation preventive mechanism of the conducting rod in the sleeve pipe, described incision teat (422e, 422f) be provided with at relative position a pair of.
30. rotation preventive mechanism as conducting rod in claim 28 or the 29 described switches usefulness sleeve pipes, it is characterized in that, incision teat (the 422e of described spline plate (422), structure 422f) is, under non-assembled state, tilt to give prominence to formation from jack (422b) to axis direction, when using nut (420) fastening, strain takes place and cut conducting rod (414) notch (414d, 414e).
31. the conducting rod rotation preventive mechanism of switch as claimed in claim 30 in the sleeve pipe, it is characterized in that, on described spline plate (422), be bent to form and above-mentioned incision teat (422e, the roughly equidirectional rake (422c of incline direction 422f), 422d), described rake (422c, 422d) between the base plate (418b) of nut (420) and containment member (418), be subjected to the extruding of nut (420) and strain, by this, impel above-mentioned incision teat (422e, 422f) embed conducting rod (414) notch part (414d, 414e).
32. a switch enclosure, described box body is made up of main cartridge (512) and box cover (513), it is characterized in that,
Hold between the flange part (513b) on limit at the flange part (512b) on the peristome that is formed at main cartridge (512) (512a) end limit and the peristome (513a) that is formed at box cover (513), form the seal receiving space (517) in cross section triangular in shape.
33. switch enclosure as claimed in claim 32 is characterized in that,
Described switch enclosure comprises the seal (514) that is contained in described seal receiving space (517), has the snap-latch piece (514d) that engages with the outward flange of the flange part (513b) of the outward flange of the flange part (512b) of main cartridge (512) or box cover (513).
34. as claim 32 or 33 described switch enclosures, it is characterized in that,
The flange part (512b) of described main cartridge (512) forms cross section L word shape by horizontal plate part (512e) and vertical plate part (512f), and the flange part (513b) of box cover (513) is formed by inclination board (513e).
35. a switch enclosure seal (514) that is contained in the described switch box body of claim 32 (511) is characterized in that,
Described seal forms and can be contained in the seal receiving space (517).
36. switch enclosure seal as claimed in claim 35 is characterized in that,
Described seal has body (514a) and is formed at least one sealed batten (514c) on the described body sealing surface.
37. as claim 35 or 36 described switch enclosure seals, it is characterized in that,
Described seal has the snap-latch piece (514d) that is arranged at body (514a) outward flange, engages with the limit outer rim of the flange part (513b) of the outward flange of the flange part (512b) of main cartridge (512) or box cover (513).
38. switch enclosure seal as claimed in claim 35 is characterized in that,
Described sealed batten (514c) is provided with a plurality of, is formed with next door (514g) on the groove (514f) that forms between the adjacent sealed batten (514c).
CN 01125265 2000-08-30 2001-08-29 Switch Expired - Fee Related CN1229834C (en)

Applications Claiming Priority (24)

Application Number Priority Date Filing Date Title
JP2000260893 2000-08-30
JP2000-260894 2000-08-30
JP2000260894 2000-08-30
JP2000260894A JP3612269B2 (en) 2000-08-30 2000-08-30 Switch movable electrode support structure
JP2000-260893 2000-08-30
JP2000260893A JP2002075141A (en) 2000-08-30 2000-08-30 Switch case and gasket used in the same
JP2000268713A JP3609704B2 (en) 2000-09-05 2000-09-05 Switch
JP2000269339A JP3660223B2 (en) 2000-09-05 2000-09-05 Interior parts support for switches
JP2000269338 2000-09-05
JP2000268712A JP3609703B2 (en) 2000-09-05 2000-09-05 Switch insulation barrier
JP2000-269338 2000-09-05
JP2000268711A JP3660222B2 (en) 2000-09-05 2000-09-05 Switch insulation barrier
JP2000268712 2000-09-05
JP2000-268711 2000-09-05
JP2000269339 2000-09-05
JP2000268713 2000-09-05
JP2000-268713 2000-09-05
JP2000-268712 2000-09-05
JP2000269338A JP3961753B2 (en) 2000-09-05 2000-09-05 Interior parts support structure for switches
JP2000268711 2000-09-05
JP2000-269339 2000-09-05
JP2001185137A JP2003007400A (en) 2001-06-19 2001-06-19 Movable electrode structure of switch
JP2001185137 2001-06-19
JP2001-185137 2001-06-19

Related Child Applications (3)

Application Number Title Priority Date Filing Date
CNB2004100615962A Division CN100337375C (en) 2000-08-30 2001-08-29 Switch insulation component
CNB2004101044910A Division CN1323411C (en) 2000-08-30 2001-08-29 Switch
CNB2004101044925A Division CN1319093C (en) 2000-08-30 2001-08-29 Movable electrode bearing structure for switch

Publications (2)

Publication Number Publication Date
CN1341943A true CN1341943A (en) 2002-03-27
CN1229834C CN1229834C (en) 2005-11-30

Family

ID=27573714

Family Applications (4)

Application Number Title Priority Date Filing Date
CNB2004101044910A Expired - Fee Related CN1323411C (en) 2000-08-30 2001-08-29 Switch
CNB2004101044925A Expired - Fee Related CN1319093C (en) 2000-08-30 2001-08-29 Movable electrode bearing structure for switch
CN 01125265 Expired - Fee Related CN1229834C (en) 2000-08-30 2001-08-29 Switch
CNB2004100615962A Expired - Fee Related CN100337375C (en) 2000-08-30 2001-08-29 Switch insulation component

Family Applications Before (2)

Application Number Title Priority Date Filing Date
CNB2004101044910A Expired - Fee Related CN1323411C (en) 2000-08-30 2001-08-29 Switch
CNB2004101044925A Expired - Fee Related CN1319093C (en) 2000-08-30 2001-08-29 Movable electrode bearing structure for switch

Family Applications After (1)

Application Number Title Priority Date Filing Date
CNB2004100615962A Expired - Fee Related CN100337375C (en) 2000-08-30 2001-08-29 Switch insulation component

Country Status (2)

Country Link
CN (4) CN1323411C (en)
HK (4) HK1044409B (en)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN103137371A (en) * 2012-12-21 2013-06-05 伊顿公司 Earthing switch device
CN114156066A (en) * 2021-12-02 2022-03-08 江苏金诺电气科技有限公司 Transformer bushing capable of dissipating heat quickly

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US20100098602A1 (en) 2003-12-19 2010-04-22 Opinder Kishan Bhan Systems, methods, and catalysts for producing a crude product
CN112909788B (en) * 2021-03-29 2022-08-26 江西变电设备有限公司 Stable in structure's cubical switchboard

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103137371A (en) * 2012-12-21 2013-06-05 伊顿公司 Earthing switch device
CN114156066A (en) * 2021-12-02 2022-03-08 江苏金诺电气科技有限公司 Transformer bushing capable of dissipating heat quickly
CN114156066B (en) * 2021-12-02 2024-02-02 江苏金诺电气科技有限公司 Transformer bushing capable of rapidly radiating

Also Published As

Publication number Publication date
HK1074529A1 (en) 2005-11-11
CN100337375C (en) 2007-09-12
HK1074530A1 (en) 2005-11-11
CN1229834C (en) 2005-11-30
HK1077932A1 (en) 2006-02-24
CN1627464A (en) 2005-06-15
CN1319093C (en) 2007-05-30
HK1044409B (en) 2006-02-24
CN1627465A (en) 2005-06-15
HK1044409A1 (en) 2002-10-18
CN1323411C (en) 2007-06-27
CN1658456A (en) 2005-08-24
HK1077932B (en) 2007-12-28

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