CN205335738U - Totally enclosed miniaturized cubical switchboard of gaseous all insulation of environmental protection - Google Patents

Abstract

The utility model discloses a totally enclosed miniaturized cubical switchboard of gaseous all insulation of environmental protection, include: the cabinet body, internal sealing gas room and the control chamber of being equipped with of cabinet, circuit breaker, circuit breaker indoor seal utmost point post admittedly including establishing at sealing gas, mainly femalely arrange draws female arranging and switch drive mechanism and establish the on -off operation mechanism in the control chamber under, and the solid quiet end that seals utmost point post is connected with main female electricity of arranging, move the end and draw down that mother row is electric to be connected, switch drive mechanism with move hold and on -off operation mechanism continuous, establish on the cabinet body and stretch out the binding post that the cabinet was personally experienced sth. Part of the body, isolator, isolator are constructed becomes to have the three state of combined floodgate, separating brake and ground connection, draw down mother arrange is connected with the binding post electricity when isolator is in the operating position and when isolator is in separating brake state or ground state and binding post break off. According to the utility model discloses the cubical switchboard, the volume is littleer, the cost is lower, and it is little influenced by external environment, prevents that noxious material from leaking, operation safe and reliable, the mode of connection is more nimble.

Description

The full-insulated full-sealed miniaturization switch cubicle of environmental protection gas

Technical field

This utility model relates to technical field of power systems, more particularly, to a kind of full-insulated full-sealed miniaturization switch cubicle of environmental protection gas。

Background technology

Switch cubicle is one of key equipment of power supply industry, in the related, mainly application SF6 gas (sulfur hexafluoride gas) of the hermetically sealed equipment of gas-insulated carries out arc extinguishing and insulation as insulating gas, and SF6 is a kind of not environmentally gas with extremely strong greenhouse effect, under high-temperature electric arc effect, also it is decomposed into toxic products, brings severe contamination to environment；In addition, power system switch cabinet there is also that volume is bigger than normal, poor safety performance, poor expandability, installation are inconvenient, poor reliability and manufacturing cost and the shortcoming such as operation expense is higher, bring the problems such as certain economic loss to country and electricity consumption user, be not suitable with modern electric industry development demand。

Additionally, the isolation switch and the corresponding size of earthed switch that use in switch cubicle are relatively larger, mostly are machined piece and assemble, owing to the precision of machining accuracy and assembling is not high, cause its reliability not high, and matched tri-station isolating switch volume is comparatively bigger than normal。Also because the factor such as insulating properties, Material texture, the use environment reliability that makes isolation and earthed switch is poor, so that manufacturing cost and operation expense are greatly increased。

Utility model content

One of technical problem that this utility model is intended to solve in correlation technique at least to a certain extent。For this, the utility model proposes a kind of full-insulated full-sealed miniaturization switch cubicle of environmental protection gas, the volume of described environmental protection gas full-insulated full-sealed miniaturization switch cubicle is less, lower in cost, is affected by the external environment little in operation, runs safety and reliability and the mode of connection is more flexible。

According to the full-insulated full-sealed miniaturization switch cubicle of environmental protection gas of the present utility model, including: cabinet, it is provided with sealed air chamber and operating room in described cabinet, is suitable in described sealed air chamber fill environmental protection gas；Chopper, described chopper include the pole being located in described sealed air chamber, main busbar, under draw busbar and switch drive and be located at the switch operating mechanism in described operating room, described pole has moved end and quiet end, described quiet end electrically connects with described main busbar, described moved end with described under draw busbar and electrically connect, described switch drive is connected with described moved end and described switch operating mechanism, to drive described moved end and described quiet end in contact under the drive of switch operating mechanism or to separate；Binding post, described binding post is located on described cabinet and stretches out described cabinet；Isolation switch, described isolation switch includes isolated operation assembly and isolation work package, described isolated operation assembly is located in described operating room, described isolation work package is located in described sealed air chamber, described isolation switch is constructed having combined floodgate, separating brake and three states of ground connection, draws busbar and electrically connect with described binding post when described isolation switch is in "on" position and disconnect with described binding post when described isolation switch is in gate-dividing state or ground state under described。

According to the full-insulated full-sealed miniaturization switch cubicle of environmental protection gas of the present utility model, volume is less, lower in cost, is affected by the external environment little in operation, and the hazardous material situations of generation can be prevented effectively to outside, safe and reliable to operation, the mode of connection is more flexible, installs and uses more convenient。

It addition, can also have following additional technical characteristic according to the full-insulated full-sealed miniaturization switch cubicle of environmental protection gas of the present utility model:

According to embodiments more of the present utility model, being provided with pressure release passage in described cabinet, described cabinet is provided with relief valve, and described relief valve is configured to be let out in described pressure release passage by the electric arc produced in described sealed air chamber。

According to embodiments more of the present utility model, described cabinet is provided with grounding contact, described isolation switch includes isolated operation main shaft, isolation switch blade sheet and quiet isolation tool rest, described isolated operation main shaft is pivotally arranged in described operating room, described isolation switch blade sheet and described quiet isolation tool rest are located in described sealed air chamber, described quiet isolation tool rest is provided with static contact, described isolation switch blade sheet electrically connects with described binding post and can contact closing position with described static contact under the control of described isolated operation main shaft, switch between the open position separated with described static contact and described grounding contact and the earthing position contacted with described static contact。

According to embodiments more of the present utility model, described switch operating mechanism is connected with described isolated switch main axle to control pivotally to turn with described isolated switch main。

According to embodiments more of the present utility model, described switch operating mechanism is spring operating mechanism or permanent magnet mechanism。

According to embodiments more of the present utility model, described isolation switch also includes: isolation switch base, described isolation switch base is connected with described cabinet and is positioned at described operating room, described isolation switch base does not contact with described quiet isolation tool rest, described isolation switch base is provided with main shaft mounting seat, and described isolated operation main shaft is located in described main shaft mounting seat。

According to embodiments more of the present utility model, described isolation switch base is epoxy cast。

According to embodiments more of the present utility model, described isolation switch base is provided with binding post mounting seat, and described binding post is located in described binding post mounting seat。

According to embodiments more of the present utility model, the surface of described isolation switch base is formed at least around the annular seal groove of described binding post mounting seat。

According to embodiments more of the present utility model, described isolation switch blade sheet and described static contact respectively three-phase, described quiet isolation tool rest includes: tool rest body, and described tool rest body is connected with described cabinet；Four insulating barriers, four spaced apart settings of described insulating barrier and being connected with described tool rest body respectively, being embedded with connector in any three described insulating barriers, static contact described in three-phase is fixed on corresponding described insulating barrier respectively through corresponding described connector。

According to embodiments more of the present utility model, described tool rest body is provided with screw hole and mounting groove, being provided with the installation crossbeam coordinated in described mounting groove in described cabinet, described quiet isolation tool rest is arranged on described installation crossbeam and is connected by the threaded fastener penetrated in described screw hole with described installation crossbeam。

According to embodiments more of the present utility model, the epoxy resin part that described tool rest body and described insulating barrier are formed in one。

According to embodiments more of the present utility model, also including: the first mounting bracket, described first mounting bracket is connected with described cabinet and is positioned at described sealed air chamber, and described pole is connected with described first mounting bracket；Second mounting bracket, described second mounting bracket is connected with described cabinet and is positioned at described operating room, and described switch operating mechanism is connected with described second mounting bracket；First mounting rail and the second mounting rail, described first mounting rail is connected with described cabinet respectively with described second mounting rail and is positioned at described sealed air chamber, described first mounting rail and described second mounting rail and is connected to the both sides of described pole。

According to embodiments more of the present utility model, described cabinet is provided with the first installing hole and the second installing hole, described first mounting bracket stretches into described first installing hole and is weldingly connected with described cabinet, and described second mounting bracket stretches into described second installing hole and is weldingly connected with described cabinet。

According to embodiments more of the present utility model, also including: electrified sensor, described electrified sensor is located in described isolation switch base and electrically connects with described binding post。

According to embodiments more of the present utility model, described isolation switch also includes: ground connection tool rest, and described ground connection tool rest and described isolation switch base pour into an integrated entity, and described grounding contact is located on described ground connection tool rest。

According to embodiments more of the present utility model, along the direction away from described sealed air chamber, the cross-sectional area of each described binding post mounting seat is all gradually reduced。

According to embodiments more of the present utility model, described cabinet is rustless steel cabinet。

Additional aspect of the present utility model and advantage will part provide in the following description, and part will become apparent from the description below, or is recognized by practice of the present utility model。

Accompanying drawing explanation

Fig. 1 is the structural representation of the switch cubicle according to this utility model embodiment；

Fig. 2 is the part-structure sectional view of the switch cubicle according to this utility model embodiment；

Fig. 3 is the part-structure side view of the switch cubicle according to this utility model embodiment；

Fig. 4 is the part-structure front view of the switch cubicle according to this utility model embodiment；

Fig. 5 is the front view of the quiet isolation tool rest of the switch cubicle according to this utility model embodiment；

Fig. 6 is the sectional view of the quiet isolation tool rest shown in Fig. 5；

Fig. 7 is the top view of the quiet isolation tool rest shown in Fig. 5；

Fig. 8 is the scheme of installation of the pole of the switch cubicle shown in Fig. 1。

Accompanying drawing labelling:

Switch cubicle 100；

Cabinet 1；Sealed air chamber 101；Operating room 102；Pressure release passage 103；Cable vault 104；Crossbeam 11 is installed；First support 12；Second support 13；First mounting rail 14；Second mounting rail 15；

Isolation switch base 21；Isolated insulation dividing plate 211；Binding post mounting seat 212；Main shaft mounting seat 213；Form mounting seat 214；Seal groove 215；Electrified sensor mounting seat 216；Binding post 22；Moving knife seat 221；Isolation switch blade sheet 231 (231 ', 231 ")；Interlock pull bar 232；Convex stupefied 2321；Interlock connecting lever 233；Isolated operation main shaft 234；Electrified sensor 24；Output termination 241；Quiet isolation tool rest 25；Tool rest body 250；Insulating barrier 251；Installation base portion 252；Mounting groove 253；Screw hole 254；Nut 255；Static contact 26；Ground connection tool rest 27；Grounding contact 28；

Pole 31；Moved end 311；Main busbar 32；Under draw busbar 33；Switch operating mechanism 34；External connecting lever 341；Connection-peg 4。

Detailed description of the invention

Being described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings。The embodiment described below with reference to accompanying drawing is illustrative of, it is intended to be used for explaining this utility model, and it is not intended that to restriction of the present utility model。

Following disclosure provides many different embodiments or example for realizing different structure of the present utility model。Of the present utility model open in order to simplify, hereinafter parts and setting to specific examples are described。Certainly, they are only merely illustrative, and are not intended to restriction this utility model。Additionally, this utility model can in different examples repeat reference numerals and/or letter。This repetition is for purposes of simplicity and clarity, the relation between itself not indicating discussed various embodiment and/or arranging。Additionally, the example of the various specific technique that provides of this utility model and material, but those of ordinary skill in the art are it can be appreciated that the use of the property of can be applicable to of other techniques and/or other materials。

Environmental protection gas full-insulated full-sealed miniaturization switch cubicle 100 according to this utility model embodiment is described in detail below in conjunction with accompanying drawing, for convenience of describing, is hereinafter simply referred to as switch cubicle 100。

Shown in Fig. 8, may include that cabinet 1, chopper, binding post 22 and isolation switch according to the switch cubicle 100 of this utility model embodiment。

Sealed air chamber 101 and operating room 102 can be provided with in cabinet 1, be suitable in sealed air chamber 101 fill environmental protection gas。Switch cubicle 100 in use, can be filled with environmental protection gas in sealed air chamber 101, for instance nitrogen, more preferably for dry nitrogen。Thus, it is possible not only to improve safety in utilization and the reliability of switch cubicle 100, it is also possible to avoid the noxious substance produced to leak。Certainly, other environmental protection gas can also fill in sealed air chamber 101, for instance air, especially dry air etc.。

Alternatively, cabinet 1 can be metal cabinet, for instance, rustless steel cabinet, namely cabinet 1 can adopt rustless steel to make, such as stainless sheet steel machine-shaping, so that the parts in switch cubicle 100 to play the effect installed preferably and support。

Chopper can include pole 31, main busbar 32 (or main bus-bar), under draw busbar 33 (or under draw bus), switch operating mechanism 34 and switch drive, pole 31, main busbar 32, under draw busbar 33 and switch drive all can be located in sealed air chamber 101, switch operating mechanism 34 can be located in operating room 102。Pole 31 has moved end 311 and quiet end, and quiet end can electrically connect with main busbar 32, moved end 311 can with under draw busbar 33 and electrically connect, the switch major loop of chopper can include main busbar 32, pole 31 and under draw busbar 33。Switch drive can be connected with moved end 311 and switch operating mechanism 34, to drive moved end 311 and quiet end in contact under the drive of switch operating mechanism 34 or to separate。

That is, switch drive was both connected with moved end 311, was connected with switch operating mechanism 34 again, and switch drive can be movable under the drive of switch operating mechanism 34, moved end 311 can be movable under the drive of switch drive, thus realizing the contact with quiet end or separating。When quiet end contacts with moved end 311, main busbar 32 with under draw busbar 33 and connect, switch major loop conducting；When quiet end separates with moved end 311, main busbar 32 with under draw busbar 33 and disconnect, switch major loop disconnects。

Binding post 22 can be located on cabinet 1 and stretch out cabinet 1。Isolation switch can include isolated operation assembly and isolation work package, and isolated operation assembly can be located in operating room 102, and isolation work package can be located in sealed air chamber 101。Isolated operation assembly is used for operating with, and isolation work package can make isolation switch may be at different states under the drive of isolated operation assembly。Isolation switch be constructed having combined floodgates, separating brake and three states of ground connection, under draw busbar 33 isolate switch be in "on" position time can electrically connect with binding post 22 and isolation switch be in gate-dividing state or ground state time can disconnect with binding post 22。

That is, under draw busbar 33 and be not joined directly together with binding post 22, between the two across isolation switch, when isolating switch and being in "on" position, isolation switch connection, under draw busbar 33 and can pass through to isolate switch and electrically connect with binding post 22, when isolation switch is in gate-dividing state or ground state, under draw busbar 33 and then disconnect with binding post 22。

Binding post 22 can use as input terminal or outlet terminal。Below for binding post 22 as outlet terminal, the operation principle of the switch cubicle 100 according to this utility model embodiment is described, similar with it as the operation principle of the switch cubicle 100 of input terminal using binding post 22, no longer describe in detail below。

When electric current flows through the vacuum interrupter in the pole 31 of chopper from main busbar 32, if vacuum interrupter is in closure state, namely when moved end 311 and quiet end in contact, then electric current can be reached down by moved end 311 and draw busbar 33；When isolating switch and being in "on" position, electric current can pass through isolation switch and reach binding post 22, and electric current can be reached external cable by the end 4 being connected with binding post 22, thus completing transmission of electricity process。

When requiring switch cubicle 100 to control loop power failure, only by the moved end 311 of switch operating mechanism 34 separately pole 31 and quiet end, then need to will keep apart pass and switch to gate-dividing state, and can complete to have a power failure；When requiring next stage power failure the maintenance etc. in control loop, can will keep apart pass after completing power failure process switches to ground state, can complete given requirements。Wherein, power transmission program is contrary with blackout procedures, does not repeat them here。

Switch cubicle 100 according to this utility model embodiment, it is internally provided with the sealed air chamber 101 being hedged off from the outer world, environmental protection gas can be filled with in sealed air chamber 101, the critical component of major loop is all enclosed in the sealed air chamber 101 of environmental protection gas confinement, operation can not be subject to surrounding environment influence, not by condensation and filthy impact, and also can be prevented effectively from the hazardous material situations of generation to outside, avoid environment, switch cubicle 100 is safe and reliable to operation, the isolation switch of Simultaneous Switching cabinet 100 has three stations, there is combined floodgate, separating brake and grounding function, without individually arranging earthed switch again, and compared with assembled pole, pole 31 is adopted to realize, modularized design, the volume making switch cubicle 100 is less, weight is lighter, lower in cost, additionally, switch cubicle 100 both can as service entrance switch, also can as outlet switch, the mode of connection is more flexible, install and use more convenient and flexible。

This switch cubicle 100 stable performance, reliable in action, no matter in economy or on electric product is applied, all there is extremely strong practicality and advance, there is high electrical safety performance, be power supply reliability strong guarantee, also be reduce customer investment precondition。

As it is shown in figure 1, can be provided with pressure release passage 103 in cabinet 1, cabinet 1 can being provided with relief valve, relief valve can be configured to be let out in pressure release passage 103 by the electric arc produced in sealed air chamber 101。Thus, it is possible to improve the security reliability of switch cubicle 100, it is prevented that switch cubicle 100 is blasted danger。Wherein, electric arc can be the accidental arcs that the element in sealed air chamber 101 produces, it is also possible to for the fault electric arc that the cable in cable vault 104 produces。The operation principle of relief valve is it can be seen that be not described in detail at this for a person skilled in the art。

It addition, straight-through current transformer and plug-in type spark gap etc. can also be installed by the cable vault 104 being positioned at operating room 102 bottom, to improve the safety and reliability of switch cubicle 100 further。

According to embodiments more of the present utility model, switch cubicle 100 can also include the first mounting bracket the 12, second mounting bracket the 13, first mounting rail 14 and the second mounting rail 15。First mounting bracket 12 can be connected with cabinet 1 and be positioned at sealed air chamber 101, and pole 31 can be connected with the first mounting bracket 12。Second mounting bracket 13 can be connected with cabinet 1 and be positioned at operating room 102, and switch operating mechanism 34 can be connected with the second mounting bracket 13。First mounting rail 14 is connected with cabinet 1 respectively with the second mounting rail 15 and is positioned at sealed air chamber 101, and the first mounting rail 14 and the second mounting rail 15 are connected to the both sides of pole 31。

As illustrated in figures 1 and 8, pole 31 can include three, three poles 31 are arranged along the longitudinal direction, first mounting rail 14 and the second mounting rail 15 are respectively provided at the left and right sides of pole 31, first mounting bracket 12 is front, second mounting bracket 13 is rear, and three poles 31 are connected with the first mounting rail 14 and the second mounting rail 15 respectively, and also are connected with the first mounting bracket 12。Thus, switch cubicle not only structure is relatively easy, and stability is better, is not susceptible to deformation, and parts are installed stronger。

In preferred embodiments more of the present utility model, cabinet 1 can being provided with the first installing hole, the first mounting bracket 12 can stretch in the first installing hole and be weldingly connected with cabinet 1。In other words, a part for the first mounting bracket 12 stretches into the first installing hole, and the position that the first mounting bracket 12 is connected with cabinet 1 can adopt welding, for instance, the periphery of the first mounting bracket 12 and the first installing hole is along being weldingly connected。Similarly, cabinet 1 being also provided with the second installing hole, the second mounting bracket 13 stretches into the second installing hole and is weldingly connected with cabinet 1。Thus, it is possible to ensure the sealing of sealed air chamber 101 and the mounting stability of parts。It addition, the junction of first mounting rail the 14, second mounting rail the 15, first mounting bracket 12 and the second mounting bracket 13 and cabinet 1 can also arrange sealing ring, to improve sealing effectiveness further。

According to embodiments more of the present utility model, cabinet 1 can being provided with grounding contact 28, grounding contact 28 is suitable to draw earthing bar with outer outside cabinet 1 or earth lead electrically connects。As in figure 2 it is shown, isolation switch can include isolated operation main shaft 234, isolation switch blade sheet 231 and quiet isolation tool rest 25, isolated operation main shaft 234 is pivotally arranged in operating room 102, and isolation switch blade sheet 231 and quiet isolation tool rest 25 are located in sealed air chamber 101。Isolated operation assembly can include from operation axis 234, and isolation work package can include isolation switch blade sheet 231 and quiet isolation tool rest 25 etc.。

Quiet isolation tool rest 25 can be provided with static contact 26, isolation switch blade sheet 231 can electrically connect with binding post 22, and isolation switch blade sheet 231 can at closing position (such as, isolation switch blade sheet 231 status in Fig. 2), open position (in such as Fig. 2 isolation switch blade sheet 231 ' status) and earthing position (in such as Fig. 2 isolation switch blade sheet 231 " status under the control of isolated operation main shaft 234) between switching。Isolation switch blade sheet 231 shown in Fig. 2, isolation switch blade sheet 231 ', isolation switch blade sheet 231 " for three switching positions in the isolation switch blade sheet course of action of certain phase。

When isolating switch and being in "on" position, isolation switch blade sheet 231 is in closing position, and isolation switch blade sheet 231 contacts with static contact 26, under draw busbar 33 and can pass through quiet isolation tool rest 25 and isolation switch blade sheet 231 realization and the electrical connection of binding post 22；When isolating switch and being in gate-dividing state, isolation switch blade sheet 231 is in open position, and isolation switch blade sheet 231 neither contacts with static contact 26, does not also contact with grounding contact 28, quiet isolation tool rest 25 separates with isolation switch blade sheet 231, under draw busbar 33 and then disconnect with binding post 22；When isolating switch and being in ground state, isolation switch blade sheet 231 contacts with grounding contact 28, and does not contact with static contact 26, under draw busbar 33 and also disconnect with binding post 22。This isolation switch is the switch of three stations, and reasonable in design, parts are less, easy for installation, dependable performance, it is ensured that the miniaturization of switch cubicle, reliability and produceability etc.。

Shown in Fig. 3, switch operating mechanism 34 can be connected with isolated switch main axle 234, to control to pivot with isolated switch main axle 234。Thus, switch operating mechanism 34 is possible not only to control the opening and closing of chopper, it is also possible to controls isolation switch, controls more convenient。Wherein, isolated switch main axle 234 can be connected with the external connecting lever 341 of switch operating mechanism 34, when switch operating mechanism 34 action, external connecting lever 341 can be movable, and drive isolated switch main axle 234 to pivot, make isolation switch blade sheet 231 can move between closing position, open position and earthing position。

Alternatively, switch operating mechanism 34 can be spring operating mechanism or permanent magnet mechanism, for instance, when switch operating mechanism 34 is formed as spring operating mechanism, can including contact pressure spring and transmission guide post etc., concrete which kind of structure of employing can select as the case may be flexibly。Wherein, the structure of spring operating mechanism or permanent magnet mechanism is appreciated that for a person skilled in the art and easily realizes, and is not described in detail at this。Structure for switch drive does not do particular restriction, as long as the movement instruction of switch operating mechanism 34 can be transmitted, such as switch drive can be multi-connecting-rod mechanism, one end of multi-connecting-rod mechanism is connected with switch operating mechanism, and the other end of multi-connecting-rod mechanism is connected with the moved end 311 of pole 31。

The isolation switch of the switch cubicle according to this utility model embodiment can be three-phase, and namely isolation switch can be three-phase isolation switch。Now, isolated switch main axle 234, isolation switch blade sheet 231, binding post 22 etc. are three-phase。Shown in seeing figures.1.and.2, the isolation switch of three station three-phases may include that isolation switch base 21, the binding post 22 of three-phase, three-phase 232, three, 231, three gearing pull bars of isolation switch blade sheet interlock the grounding contact 28 etc. of connecting lever 233, isolated operation main shaft 234, the electrified sensor 24 (such as charged display sensor) of three-phase, quiet isolation tool rest 25,26, three ground connection tool rests 27 of static contact of three-phase and three-phase。Here, it is necessary to explanation, " phase " refers to the every phase in " three-phase electricity "。

Quiet isolation tool rest 25 may be mounted on cabinet 1, and isolation switch base 21 may be mounted at and contacts on cabinet 1 and not with quiet isolation tool rest 25。It is to say, switch matrix 21 and quiet isolation tool rest 25 are Split insulating structure, in other words, switch matrix 21 and quiet isolation tool rest 25 are two independent and spaced apart insulating elements。Such as, in the example shown in Fig. 1 and Fig. 2; isolation switch base 21 is separately mounted on cabinet 1 with quiet isolation tool rest 25; to be combined into complete isolation switch by the cabinet 1 that seals of metal stainless sheet steel machine-shaping, in order to realize the safeguard protection flowing through the connection of electric current, isolation and ground connection。Thus, it is possible to be effectively prevented from the probability that leakage current occurs between isolation switch base 21 and quiet isolation tool rest 25, improve the security performance of isolation。

Alternatively, in an embodiment of the present utility model, quiet isolation tool rest 25 for insulating part and can adopt epoxy resin to make, for instance cast is formed。Thus, the hydrophobicity of quiet isolation tool rest 25 is good, will not cause the danger of harmful gas and fluid leakage, from without to environment, and is not affected by surrounding, condensation and filth etc. in running。

As shown in Figure 2 and Figure 5, static contact 26 is three-phase, and quiet isolation tool rest 25 includes tool rest body 250 and four insulating barriers 251 being connected with tool rest body 250, is provided with the static contact 26 of a phase between two often adjacent insulating barriers 251。Thus, it is possible to reinforced insulation dividing plate 251 insulating properties each other and insulating properties relatively, the compact conformation of isolation switch, small and exquisite, insulating reliability is high and functional reliability is high。

Alternatively, four insulating barriers 251 can side by side and spaced apart be located on tool rest body 250, and tool rest body 250 can adopt poured with epoxy resin to form integral piece with four insulating barriers 251。Thus, not only easily manufactured, it is simple to assembling, and quiet isolation tool rest 25 structural stability is good and good insulating。As it is shown in figure 5, quiet isolation tool rest 25 can be generally formed into " π " type structure。

With reference to shown in Fig. 2, Fig. 5 to Fig. 7, three insulating barriers 251 in four insulating barriers 251 can be embedded with connector, and the static contact 26 of three-phase is fixed on corresponding second insulating barrier 251 respectively through corresponding connector。Such as in the example of Fig. 5 to Fig. 7, three insulating barriers 251 in four insulating barriers 251 have installation base portion 252, and each installation base portion 252 can be embedded with connector (such as nut 255), for the static contact 26 of fixing corresponding phase。Thus, the simple installation of static contact 26, installation reliability is high。

According to embodiments more of the present utility model, quiet isolation tool rest 25 can being provided with mounting groove 253, can be provided with the installation crossbeam 11 coordinated in mounting groove 253 in cabinet 1, quiet isolation tool rest 25 may be mounted on installation crossbeam 11。With reference to Fig. 2, Fig. 5 to Fig. 7, quiet isolation tool rest 25 can be provided with mean in cabinet 1 and ride the installation crossbeam 11 set, the lower end of tool rest body 250 could be formed with upwardly recessed mounting groove 253, threaded fastener the roof of mounting groove 253 has and the relative screw hole 254 of crossbeam 11 is installed, by through screw hole 254 and is threaded io installation crossbeam 11 can be fixed on by quiet isolation tool rest 25 on installation crossbeam 11。Thus, easy for installation and connection reliability is high。

In an embodiment of the present utility model, isolation switch base 21 can be insulating part and poured with epoxy resin can be adopted to make。Thus, the hydrophobicity of isolation switch base 21 is good, will not cause the danger of harmful gas and fluid leakage, from without to environment, and is not affected by surrounding, condensation and filth etc. in running。

Shown in Fig. 4, isolation switch base 21 itself can be cast with four pieces of isolated insulation dividing plates 211, binding post mounting seat 212, main shaft mounting seat 213, form mounting seat 214 and sealing member mounting groove 253, and isolate switch base 21 and can pour into an integrated entity module with binding post 22, electrified sensor 24 and ground connection tool rest 27。Thus, the compact conformation, small and exquisite of isolation switch, decrease sealing part, improve insulating reliability and functional reliability, and isolate switch not only can reliably location and installation, and when isolating switch motion, make reliable transmission, improve three-phase dynamic/static contact and contact reliable concordance。

As shown in Figure 2, isolation switch can include the isolation switch blade sheet 231 of the three-phase being arranged side by side, four pieces of isolated insulation dividing plates 211 of cast side by side and spaced apart setting, can be provided with, between two often adjacent isolated insulation dividing plates 211, the isolation switch blade sheet 231 that a phase is exposed in sealed air chamber 101。Thus, structure is compacter, and can effectively reduce the distance between adjacent two isolated insulation dividing plates 211, and the distance that each isolated insulation dividing plate 211 is relatively, thus improve isolated insulation dividing plate 211 insulating properties each other and isolated insulation dividing plate 211 insulating properties relatively。

Further, with reference to shown in Fig. 2 to Fig. 4, three binding post mounting seats 212 are arranged side by side, and the binding post 22 of three-phase is separately mounted in three binding post mounting seats 212, and the binding post 22 of every phase all electrically connects with the isolation switch blade sheet 231 of corresponding phase。Shown in Fig. 1 to Fig. 3, binding post mounting seat 212 can pour into and be directed away from the cone boss that the direction cross section at isolation switch base 21 center is gradually reduced, that is, along the direction away from sealed air chamber 101, the cross-sectional area of each binding post mounting seat 212 is gradually reduced, thus binding post mounting seat 212 is easy to external European connection-peg 4, to ensure good insulated enclosure performance, the binding post 22 of three-phase is separately mounted in the binding post mounting seat 212 of correspondence and electrically connects with the isolation switch blade sheet 231 of corresponding phase, to realize the conducting of electric current。Thus, the line mode of isolation switch is flexible, and isolation, ground protection port security are reliable。

Wherein, each binding post mounting seat 212 can all with isolation switch base 21 one moulding by casting, the binding post 22 of every phase is all poured into a mould connected with corresponding binding post mounting seat 212。Thus, the structure of isolation switch is compacter, small and exquisite, decrease sealing part, and functional reliability is higher。

Here it is possible to be understood by, the one side being provided with binding post mounting seat 212 of isolation switch base 21 can be positioned in the cable vault 104 of cabinet 1。Line cable is connected again safely and reliably thus, it is possible to convenient, flexible。

Specifically, the end of the binding post 22 of every phase is equipped with the moving knife seat 221 stretched in sealed air chamber 101, and one end of the isolation switch blade sheet 231 of every phase is hinged with corresponding moving knife seat 221。See figures.1.and.2, one end stretched in sealed air chamber 101 of the binding post 22 of every phase is it is so structured that the moving knife seat 221 of isolation switch of corresponding phase, one end of every isolated switch blade 231 is respectively pivotally mounted upon on the moving knife seat 221 of correspondence, and namely three-phase isolation switch blade 231 is hinged on three moving knife seats 221 correspondingly。Thus, it is simple to isolation switch blade sheet 231 is installed so that the structure of isolation switch is compacter。

Further, with reference to Fig. 4, the surface of isolation switch base 21 could be formed with at least around the annular seal groove 215 of three binding post mounting seats 212, that is, seal groove 215 can be cast in watering of isolation switch base 21 and outpour on a side surface of binding post mounting seat 212 and around the binding post 22 of three-phase, in seal groove 215, sealing joint strip can be installed, for instance sealing ring etc., thus improving the sealing reliability of switch cubicle 100 further。

Additionally, with reference to Fig. 2 and Fig. 4, isolation switch base 21 can pour into a mould three form mounting seats 214, three form mounting seats 214 are respectively formed with an observation perforation run through, three observation perforation are relative with three-phase isolation switch blade 231, thus user can pass through three observes the operating state that the isolation switch blade sheet 231 of three-phase is observed in perforation, for ensureing functional reliability and the safety of isolation switch, the outer face of form mounting seat 214 is it is so structured that flange face is for installing observation window, for instance glass plate etc.。

Shown in seeing figures.1.and.2, switch cubicle 100 can also include electrified sensor 24, electrified sensor 24 can be located in isolation switch base 21 and electrically connect with binding post 22, when binding post 22 is three phase times, electrified sensor 24 is also three-phase, it is to say, the binding post 22 of the electrified sensor 24 of every phase and corresponding phase is connected, thus user whether can understand binding post 22 by electrified sensor 24 charged。Electrified sensor 24 can be charged display sensor, in order to user observes。

Such as, in example shown in Fig. 2 and Fig. 4, the electrified sensor 24 of every phase can lay respectively at the surface of the binding post 22 of corresponding phase, the electrified sensor 24 of every phase can be passed through the wire of welding on it and connect with the binding post 22 of corresponding phase, and also leaves, in the electrified sensor 24 of every phase, the output termination 241 passing isolation switch base 21。

Preferably, the electrified sensor 24 of three-phase is all connected with isolation switch base 21 cast, additionally, for the ease of connecting electrified sensor 24, output termination 241 electrified sensor mounting seat 216 (with reference to Fig. 3) can be gone out, so that can pass electrified sensor 24 mounting seat 216 at isolation self upper of switch base 21。Thus, compactness, compact, reliability and the sealing of isolation switch are further increased。

As shown in Figure 4, comparatively preferably, seal groove 215 can be close to the edge of isolation switch base 21 and arrange, and by binding post 22, electrified sensor mounting seat and form mounting seat 214 etc. all around living, isolation switch base 21 is good with the connection sealing of cabinet 1。

Shown in Fig. 3, isolated operation main shaft 234 can pass through linked component and be connected with isolation switch blade sheet 231。Specifically, isolated operation main shaft 234 is installed in rotation in isolation switch base 21, linked component can be three and respectively corresponding with the isolation switch blade sheet 231 of three-phase be connected, each linked component is connected to isolated operation main shaft 234, to be driven isolation switch blade sheet 231 action driving corresponding phase by isolated operation main shaft 234, namely linked component can transmit the action command of isolated operation main shaft 234 to isolation switch blade sheet 231。

Alternatively, each linked component may each comprise gearing connecting lever 233 and interlocks pull bar 232, the one end interlocking connecting lever 233 is connected with isolated operation main shaft 234, the one end interlocking pull bar 232 is hinged with the other end interlocking connecting lever 233, and the other end interlocking pull bar 232 is hinged with the isolation switch blade sheet 231 of corresponding phase。Thus, it is possible to realize operation and the locking of three Switch of working positions of isolation switch neatly。

As depicted in figs. 1 and 2, isolated operation main shaft 234 can being rotated by switch operating mechanism 34, so that the isolation switch blade sheet 231 of three-phase can corresponding with the grounding contact 28 of three-phase engage, specifically, the ground spring can having in switch operating mechanism 34 is released can, isolated operation main shaft 234 can be quickly driven by external connecting lever 341, isolated operation main shaft 234 can be switched blade 231 by linked component driving isolation and is in close contact by contact pressure spring with grounding contact 28, such that it is able to make isolation switch be grounded action, and then it is in product maintenance, the miniaturization isolation switch of the states such as maintenance can ensure maintainer's safety。

Alternatively, interlock and the periphery wall of pull bar 232 can have anti-tracking convex stupefied 2321, such as in the illustrated example shown in fig. 2, interlock and pull bar 232 could be formed with multiple convex annular along its axially spaced distribution stupefied 2321, thus playing the effect of anti-tracking, to improve the functional reliability of isolation switch。

In more preferably embodiment more of the present utility model, isolation switch base 21 can include the main shaft mounting seat 213 for installing isolated operation main shaft 234, and main shaft mounting seat 213 can be connected with isolation switch base 21 cast。Thus, compactness, compact, the reliability of isolation switch and few sealing are further increased。

Such as, in the example shown in Fig. 1 to Fig. 3, main shaft mounting seat 213 one end can pour into circular hole, in order to install bearing, the other end can pre-buried inserts, for mounting flange end cap, isolated operation main shaft 234 is pivotably mounted in main shaft mounting seat 213, isolated operation main shaft 234 has three and interlocks connecting lever 233, each gearing connecting lever 233 connects one end interlocking pull bar 232 of correspondence respectively, and the other end of each gearing pull bar 232 is hinged with the transmission pin-and-hole of the isolation switch blade sheet 231 of corresponding phase respectively。

Thus, isolated operation main shaft 234 can pass through the pull bar 232 that interlocks interlocking connecting lever 233 and three-phase of three-phase and drive the isolation switch blade sheet 231 of three-phase to switch between closing position, open position and earthing position, to realize three station actions of the combined floodgate of isolation switch, separating brake, ground connection。Thus, switch operating mechanism 34 can realize operation and the locking of three Switch of working positions of isolation switch neatly。

Switch cubicle 100 wiring according to this utility model embodiment is flexible。If employing long cable section of ingoing line, alternating current power supply A, the European connection-peg of B, C threephase cable 4 can be plugged in the sub-mounting seat 212 of three-phase terminal to connect the binding post 22 of three-phase, thus source current passes to the isolation switch blade sheet 231 of three-phase by the binding post 22 of three-phase, now, if the isolation switch blade sheet 231 of three-phase is in the closing position of static contact 26 fluid-tight engagement with three-phase, electric current will be spread out of the static contact 26 of three-phase by the isolation switch blade sheet 231 of three-phase, and is spread out of by electric current by static contact 26。

If employing cable outlet, current flowing order is contrary with above-mentioned inlet wire, that is, if the isolation switch blade sheet 231 of three-phase is in the closing position of static contact 26 fluid-tight engagement with three-phase, electric current first passes through the static contact 26 of three-phase and spreads out of on the isolation switch blade sheet 231 of three-phase, isolation switch blade sheet 231 again through three-phase exports on the binding post 22 of three-phase, the binding post 22 then passing through three-phase exports on alternating current power supply A, the European connection-peg 4 of B, C threephase cable, to be exported by three-phase current。

Alternatively, isolation switch could be included for installing the ground connection tool rest 27 of grounding contact 28。Such as, in the example shown in Fig. 1 to Fig. 3, ground connection tool rest 27 can be three and can be located at the top isolating switch base 21 side by side, the grounding contact 28 of three-phase is connected for correspondence, one end of the grounding contact 28 of every phase is all used for connecting draws earthing bar outward, thus when the isolation switch blade sheet 231 of every phase engages with the grounding contact 28 of corresponding phase, isolation switch can be grounded action。Preferably, ground connection tool rest 27 may be mounted in isolation switch base 21 and is connected with isolation switch base 21 cast。Thus, it is possible to improve compactness, compact, reliability and the sealing of isolation switch further, it is easier to manufacture。

Switch cubicle 100 according to this utility model embodiment is a kind of miniaturization, security performance is high, adopt the full-insulated full-sealed switch cubicle of environment-friendly materials and gas, there is hermetic cabinet, miniaturized vacuum environmental protection chopper (or on-load switch), tri-station isolating switch, it is not affected by the external environment during work, extensibility is good, round-the-clock, meet environmental requirement, easy for installation, operation expense is low, electric power facility investment can be significantly reduced and defeated, feeder circuit loss, power supply reliability and power supply quality can be improved, realize electrical network and equip to environmental protection, high security, high reliability, miniaturization, integrated direction develops, simplify electric pressure, build dual-ring network, high voltage is made to go deep into load center, strengthen the purposes such as city web frame, be suitable to city net, the power reguirements of rural power grids etc.。

Other compositions of switch cubicle 100 according to this utility model embodiment and operation are known for the person of ordinary skill of the art, are not described in detail at this。

In description of the present utility model, it will be appreciated that, term " " center ", " transverse direction ", " on ", D score, "front", "rear", "left", "right", " top ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship; be for only for ease of description this utility model and simplifying and describe; rather than instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model。

Additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic。Thus, define " first ", the feature of " second " can express or implicitly include at least one this feature。In description of the present utility model, " multiple " are meant that at least two, for instance two, three etc., unless otherwise expressly limited specifically。

In this utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or integral；Can be mechanically connected, it is also possible to be electrical connection or each other can communication；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction。For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in this utility model as the case may be。

In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact。

In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " specific embodiment ", " example " or " concrete example " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment of the present utility model or example。In this manual, the schematic representation of above-mentioned term is necessarily directed to identical embodiment or example。And, the specific features of description, structure, material or feature can combine in one or more embodiments in office or example in an appropriate manner。Additionally, when not conflicting, the feature of the different embodiments described in this specification or example and different embodiment or example can be carried out combining and combining by those skilled in the art。

Although above it has been shown and described that embodiment of the present utility model, it is understandable that, above-described embodiment is illustrative of, it is not intended that to restriction of the present utility model, above-described embodiment can be changed in scope of the present utility model, revises, replace and modification by those of ordinary skill in the art。

Claims (18)

1. the full-insulated full-sealed miniaturization switch cubicle of environmental protection gas, it is characterised in that including:

Cabinet, is provided with sealed air chamber and operating room in described cabinet, be suitable to fill environmental protection gas in described sealed air chamber；

Chopper, described chopper include the pole being located in described sealed air chamber, main busbar, under draw busbar and switch drive and be located at the switch operating mechanism in described operating room, described pole has moved end and quiet end, described quiet end electrically connects with described main busbar, described moved end with described under draw busbar and electrically connect, described switch drive is connected with described moved end and described switch operating mechanism, to drive described moved end and described quiet end in contact under the drive of described switch operating mechanism or to separate；

Binding post, described binding post is located on described cabinet and stretches out described cabinet；

Isolation switch, described isolation switch includes isolated operation assembly and isolation work package, described isolated operation assembly is located in described operating room, described isolation work package is located in described sealed air chamber, described isolation switch is constructed having combined floodgate, separating brake and three states of ground connection, draws busbar and electrically connect with described binding post when described isolation switch is in "on" position and disconnect with described binding post when described isolation switch is in gate-dividing state or ground state under described。

2. the full-insulated full-sealed miniaturization switch cubicle of environmental protection gas according to claim 1, it is characterized in that, being provided with pressure release passage in described cabinet, described cabinet is provided with relief valve, and described relief valve is configured to be let out in described pressure release passage by the electric arc produced in described sealed air chamber。

3. the full-insulated full-sealed miniaturization switch cubicle of environmental protection gas according to claim 1 and 2, it is characterized in that, described cabinet is provided with grounding contact, described isolated operation assembly includes pivotable isolated operation main shaft, described isolation work package includes isolation switch blade sheet and quiet isolation tool rest, described quiet isolation tool rest is provided with static contact, described isolation switch blade sheet electrically connects with described binding post and can contact closing position with described static contact under the control of described isolated operation main shaft, switch between the open position separated with described static contact and described grounding contact and the earthing position contacted with described static contact。

4. the full-insulated full-sealed miniaturization switch cubicle of environmental protection gas according to claim 3, it is characterised in that described switch operating mechanism is connected with described isolated switch main axle to control pivotally to turn with described isolated switch main。

5. the full-insulated full-sealed miniaturization switch cubicle of environmental protection gas according to claim 1, it is characterised in that described switch operating mechanism is spring operating mechanism or permanent magnet mechanism。

6. the full-insulated full-sealed miniaturization switch cubicle of environmental protection gas according to claim 3, it is characterized in that, described isolation switch also includes: isolation switch base, described isolation switch base is connected with described cabinet and is positioned at described operating room, described isolation switch base does not contact with described quiet isolation tool rest, described isolation switch base is provided with main shaft mounting seat, and described isolated operation main shaft is located in described main shaft mounting seat。

7. the full-insulated full-sealed miniaturization switch cubicle of environmental protection gas according to claim 6, it is characterised in that described isolation switch base is epoxy cast。

8. the full-insulated full-sealed miniaturization switch cubicle of environmental protection gas according to claim 6 or 7, it is characterised in that described isolation switch base is provided with binding post mounting seat, and described binding post is located in described binding post mounting seat。

9. the full-insulated full-sealed miniaturization switch cubicle of environmental protection gas according to claim 8, it is characterised in that be formed on the surface of described isolation switch base at least around the annular seal groove of described binding post mounting seat。

10. the full-insulated full-sealed miniaturization switch cubicle of environmental protection gas according to claim 3, it is characterised in that described isolation switch blade sheet and described static contact respectively three-phase, described quiet isolation tool rest includes:

Tool rest body, described tool rest body is connected with described cabinet；

Four insulating barriers, four spaced apart settings of described insulating barrier and being connected with described tool rest body respectively, any three described insulating barriers are embedded with connector respectively, and static contact described in three-phase is fixed on corresponding described insulating barrier respectively through corresponding described connector。

11. the full-insulated full-sealed miniaturization switch cubicle of environmental protection gas according to claim 10, it is characterized in that, described tool rest body is provided with screw hole and mounting groove, being provided with the installation crossbeam being adapted to fit in described mounting groove in described cabinet, described tool rest body is arranged on described installation crossbeam and is connected by the threaded fastener penetrated in described screw hole with described installation crossbeam。

12. the full-insulated full-sealed miniaturization switch cubicle of environmental protection gas according to claim 10 or 11, it is characterised in that the epoxy resin part that described tool rest body and described insulating barrier are formed in one。

13. the full-insulated full-sealed miniaturization switch cubicle of environmental protection gas according to claim 1, it is characterised in that also include:

First mounting bracket, described first mounting bracket is connected with described cabinet and is positioned at described sealed air chamber, and described pole is connected with described first mounting bracket；

Second mounting bracket, described second mounting bracket is connected with described cabinet and is positioned at described operating room, and described switch operating mechanism is connected with described second mounting bracket；

First mounting rail and the second mounting rail, described first mounting rail is connected with described cabinet respectively with described second mounting rail and is positioned at described sealed air chamber, described first mounting rail and described second mounting rail and is connected to the both sides of described pole。

14. the full-insulated full-sealed miniaturization switch cubicle of environmental protection gas according to claim 13, it is characterized in that, described cabinet is provided with the first installing hole and the second installing hole, described first mounting bracket stretches into described first installing hole and is weldingly connected with described cabinet, and described second mounting bracket stretches into described second installing hole and is weldingly connected with described cabinet。

15. the full-insulated full-sealed miniaturization switch cubicle of environmental protection gas according to claim 6 or 7, it is characterised in that also include: electrified sensor, described electrified sensor is located in described isolation switch base and electrically connects with described binding post。

16. the full-insulated full-sealed miniaturization switch cubicle of environmental protection gas according to claim 6 or 7, it is characterized in that, described isolation switch also includes: ground connection tool rest, described ground connection tool rest and described isolation switch base pour into an integrated entity, and described grounding contact is located on described ground connection tool rest。

17. the full-insulated full-sealed miniaturization switch cubicle of environmental protection gas according to claim 8, it is characterised in that along the direction away from described sealed air chamber, the cross-sectional area of each described binding post mounting seat is all gradually reduced。

18. the full-insulated full-sealed miniaturization switch cubicle of environmental protection gas according to claim 1, it is characterised in that described cabinet is rustless steel cabinet。