CN203192673U - Novel on/off transmission device for high-voltage electric apparatus - Google Patents
Novel on/off transmission device for high-voltage electric apparatus Download PDFInfo
- Publication number
- CN203192673U CN203192673U CN 201320204574 CN201320204574U CN203192673U CN 203192673 U CN203192673 U CN 203192673U CN 201320204574 CN201320204574 CN 201320204574 CN 201320204574 U CN201320204574 U CN 201320204574U CN 203192673 U CN203192673 U CN 203192673U
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- China
- Prior art keywords
- conducting rod
- cut
- moving contact
- conductive rod
- insulating
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- 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.)
- Withdrawn - After Issue
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
- H01H2033/6667—Details concerning lever type driving rod arrangements
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses a novel on/off transmission device for a high-voltage electric apparatus. The transmission device comprises a conductive rod and a switch driving mechanism for driving the conductive rod to move back and forth, wherein an insulation layer is coated on the outer circumferential wall of the conductive rod. The conductive rod coated with the solid insulation layer outside is disposed between outlet terminals at two sides; one end of the insulated conductive rod is directly connected with the moving contact of an on/off element and the other end of the insulated conductive rod is connected with the outlet terminals through a slide conductive assembly with a guide (a lead-connecting flexible connection may also be adopted); and an insulation main shaft and an insulation crank arm rotate and swing for driving the conductive rod to reciprocate so that use of redundant elements such as an insulation pull rod, a conductive clamp, a flexible connection and the like is prevented. Besides, a contact pressure spring is directly applied to the outer insulated conductive rod and the insulation portion may be directly applied to the outer portion of the conductive rod so that production cost is substantially reduced, an overall structure is compacted, simplified and miniaturized, and detachment and maintenance become more convenient.
Description
Technical field
The utility model relates to power high voltage switching technique field, relates in particular to the novel split-combination transmission gear of high-voltage appliance switch.
Background technology
High voltage switchgear developed recently trend is for strengthening the research and development of energy-conserving and environment-protective, highly reliable few (exempting from) maintenance switch equipment; Strengthen miniaturization, big capacity, box technology and product development altogether.Existing high-voltage switch gear operating mechanism is through studying for many years, developing, and its basic theory and structure etc. have reached than higher level.But drive mechanism, galvanic circle, the insulation system of existing switchgear are designed to split-type design, have so just caused the following limitation of existing construction of switch:
Though 1, existing major loop cut-offs element and adopted the small and exquisite vacuum interrupter of profile, vacuum interrupter still is exposed in the air.Alternate and still need install insulation booth or insulating barrier additional over the ground, caused complex contour like this, heaviness, and also processing and manufacturing difficulty is big, the cost height.
2, existing primary conductive loop is made up of multistage element---and cut-off moving contact, conductive clip, be flexible coupling, conducting rod, outlet terminal, like this by conductive clip, be flexible coupling and conducting rod carries out the conductive structure complexity of primary circuit, contact resistance height, caloric value are big, and flow conductivity is poor, because the limitation effect of flexible connection structure work shape, the Electric Field Distribution inequality, it is excessive easily to produce local field strength, thereby Fault of Insulating Breakdown takes place.
3, existing running part---be connected transmission with the galvanic circle by insulated tension pole and realize the high-low pressure isolation: guarantee insulating capacity by insulated tension pole, thereby make main shaft away from the primary conductive part, drive system by two groups of rocking arms and insulated tension pole composition, not only drive mechanism complexity, parts are many, and the dismounting debugging is loaded down with trivial details.
The utility model content
The purpose of this utility model provides the novel split-combination transmission gear of a kind of high-voltage appliance switch, can simplify primary conductive loop and transmission mechanism greatly, has reduced the weight of switchgear, saves the cost of high-voltage appliance switch.
The utility model adopts following technical proposals:
The novel split-combination transmission gear of high-voltage appliance switch comprises conducting rod and is used for the reciprocating driving mechanism for switch of driving conducting rod, is provided with insulating barrier between the contact-making surface of described driving mechanism for switch and conducting rod.
Described insulating barrier is the insulating case that is coated on the periphery wall of conducting rod, and an end of described conducting rod is electrically connected the moving contact that cut-offs of high-voltage switch gear, and the other end is electrically connected the leading-out terminal of the high-voltage switch gear corresponding with cut-offfing moving contact.
Also include for cushioning and keeping conducting rod and cut-off the touch spring that moving contact contacts pressure, touch spring is arranged on conducting rod and cut-offs the end that moving contact is electrically connected.
Described driving mechanism for switch comprises operating mechanism, drive link, driving main shaft, described operating mechanism connects an end of drive link by output toggle arm, the other end of drive link connects an end of driving main shaft by the input connecting lever, described driving main shaft is provided with ears fork connecting lever, and described driving main shaft drives the conducting rod reciprocating motion by ears fork connecting lever.
Described conducting rod is coaxial with high-voltage switch gear moving contact leading-out terminal, and conducting rod slides with the moving contact leading-out terminal and is electrically connected.
It is tight fit between described insulating case and conducting rod, described touch spring is sleeved on the outer surface of insulating case, the insulating case outer surface is provided with creepage full skirt near cut-offfing the first end of movable contact, touch spring one end is pressed in the end of creepage full skirt, and the other end is connected by slip making leaf spring and ears shift fork connecting lever.
Be slidingly matched for the gap between described insulating case and conducting rod, outwards convex to form insulating cover near the insulating case that cut-offs the movable contact head end, described moving contact spring is socketed on the interior conducting rod of insulating cover, and touch spring one end is fixedlyed connected with the insulating cover end face, and the limited step of projection is fixedlyed connected on the other end and the conducting rod.
Described ears shift fork connecting lever is that the insulating outer layer cast forms whole arc transition.
The utility model is by between the outlet terminal of both sides, the outer conducting rod that coats solid insulating layer of design, insulation conducting rod one end with cut-off the element moving contact and directly be connected, the other end is connected (also can adopt continuous the flexibly connecting of lead) with outlet terminal by the sliding conduction assembly that has guiding, insulation spindle insulating connecting lever rotary oscillation drives the conducting rod straight reciprocating motion, thereby avoid using insulated tension pole, conductive clip, loaded down with trivial details element such as be flexible coupling, the contact pressure spring can directly act on the external insulation conducting rod, and the outside of insulated part directly being accomplished conducting rod, so not only significantly reduced production cost, and make whole compact conformation, oversimplify, miniaturization, the dismounting maintenance is convenient.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the structural representation of the utility model embodiment 2;
Fig. 3 is the utility model embodiment 1 plan structure schematic diagram.
Embodiment
As shown in Figure 1, the novel split-combination transmission gear of high-voltage appliance switch comprises conducting rod 2 and is used for driving conducting rod 2 reciprocating driving mechanism for switchs, is provided with insulating barrier between the contact-making surface of described driving mechanism for switch and conducting rod.Described insulating barrier is the insulating case 3 that is coated on the periphery wall of conducting rod 2, and what an end of described conducting rod 2 was electrically connected high-voltage switch gear cut-offs moving contact 7, and the other end is electrically connected the leading-out terminal 13 of the high-voltage switch gear corresponding with cut-offfing moving contact 7.
Also include for cushioning and keeping conducting rod 2 and cut-off the touch spring 5 that moving contact 7 contacts pressure, touch spring 5 is arranged on conducting rod 2 and cut-offs the end that moving contact 7 is electrically connected.
Described driving mechanism for switch comprises operating mechanism 22, drive link 23, driving main shaft 25, described operating mechanism 22 connects an end of drive link 23 by output toggle arm 21, the other end of drive link 23 connects an end of driving main shaft 25 by input connecting lever 24, described driving main shaft 25 is provided with ears fork connecting lever 26, and described driving main shaft 25 drives conducting rod 2 reciprocating motions by ears fork connecting lever 26.
During installation, driving mechanism for switch is installed at first as shown in Figure 3.Earlier driving main shaft 25 1 ends are positioned in the main shaft fixing base installing hole 1 (can set in advance when shell designs), the other end is fixing by flange 14.Driving main shaft 25 adopts metal rigidity skeleton, outer solid insulation clad structure, and described insulating barrier is the epoxy resin integral cast; The epoxy composition proportion guarantees as main running part, to have guaranteed mechanical strength simultaneously under the spindle insulating ability prerequisite; In order to assemble, process facility, described ears shift fork connecting lever 26 also forms for the insulating outer layer cast, and whole arc transition makes depanning convenient, and corner transmits stressed more even; Existing high-voltage switch gear mostly is common box type, therefore sets up the insulation step as required in ears fork connecting lever 26 both sides, not only can play the effect of transmission power, and make the insulating properties of insulating case 3 more reliable, good looking appearance.
Next installs conducting rod 2: the conducting rod 2 that excess of stroke compression spring component (being touch spring 5 and slip making leaf spring 4) will be housed is satisfied with a side of the ears fork connecting lever 26 of driving main shaft 25 by frock, in the time of slip making leaf spring 4, a side at slip making leaf spring 4 places need not to arrange insulation step (ears fork connecting lever 26 directly acts on the slip making leaf spring 4).Conducting rod 2 adopts the rigid conductive skeleton, outer solid insulation coats design: the rigid conductive skeleton is the good conductor of electric conductivity, and external insulation designs segmental machining technology especially because install slip making leaf spring 4 additional, so also reduce size and the difficulty of processing of mould, reduced cost of investment; Pour into a mould one section external insulation at the skeleton of conducting rod 2 earlier, the insulation material should have the good electric insulation property, mechanical performance, thermal stability, touch spring 5, the stainless steel spring steel wire coiling that slip making leaf spring 4(adopts weak magnetic even do not have magnetic forms, also can adopt the composite elastic plastic processing, slip making leaf spring 4 is similarly no magnetic rigidity material and is made, in the time of can reducing switching current like this and pass through, the a series of problems that produce heat and cause) be through on the external insulation layer, pour into a mould one section external insulation again, excess of stroke compression spring component (touch spring 5, slip making leaf spring 4) is enclosed in the fixed dimension (according to different switchgear strokes, adjusting this size).
At last, the both sides outlet terminal is installed, i.e. input terminal 13 and outlet terminal 30: input terminal 13, outlet terminal 30, major loop are cut-off element 8, be fixed on the switchgear.Major loop cut-offs the direct-connected connection conducting rod 2 of element 8 movable contact head ends, and major loop cut-offs element 8 stationary contacts and is connected with outlet terminal 30.Under the situation of input terminal 13 and conducting rod 2 coaxial (central shaft of the central shaft of input terminal 12 and conducting rod 2 is on same the straight lines), input terminal 13 and conducting rod 2 are electrically connected 12 by sliding and carry out conducting; Described slip is electrically connected that 12 electric installation sizes are little, simple in structure, installation is convenient, electric conductivity is good, also guaranteed the guiding problem of switch straight reciprocating motion simultaneously, described slip electrically connects as thimble tube electrical connecting pattern commonly used, electrical equipment uses general, and concrete connection, work structuring no longer describe in detail.Described slip is electrically connected 12 and also can uses the flexible cord structure to replace, the stroke that cut-offs that can realize switch gets final product, and is applicable to the situation of input terminal 13 and conducting rod 2 disalignments (central shaft of the central shaft of input terminal 12 and conducting rod 2 is not on same straight line).
Embodiment 1, insulating case 3 as shown in figures 1 and 3 is the tight fit that is rigidly connected with conducting rod 2, described touch spring 5 is socketed in insulating case 3 outer surfaces, insulating case 3 outer surfaces are provided with creepage full skirt 6 near cut-offfing moving contact 7 one ends, touch spring 5 one ends are pressed in the end of creepage full skirt 6, and the other end is connected by slip making leaf spring 4 and ears shift fork connecting lever 26.
Under the operate as normal---when high-voltage switch gear is closed: operating mechanism 22 savings power, and discharge transferring power to output toggle arm 21, output toggle arm 21 is connected by the input connecting lever 24 of the driving main shaft 25 of drive link 23 and driving mechanism for switch, and moment is delivered on the driving main shaft 25, ears shift fork connecting lever 26 on the driving main shaft 25 rotates presses to slip making leaf spring 4 deflection contact pressure springs 5,5 compressions of contact pressure spring, cut-off external insulation sleeve 3 pressure of the conducting rod of moving contact 7 to connection, cut-off moving contact 7 motion until with cut-off part fixed contact 9 and be adjacent to.This is the feed motion of switch.
During separating brake, when namely high-voltage switch gear is opened.Provide power source by operating mechanism 22 equally, output toggle arm 21 rotates the main shaft 25 of pulling connecting rod 23 and driving mechanism for switch, the step that driving main shaft ears shift fork connecting lever 26 is pressed on the opposite side insulating barrier, thereby drive conducting rod 2, cut-off moving contact 7 to an other lateral movement, realize the disjunction action of switchgear.
Described insulating case 3 adopts SMC composite plastic (having excellent electric insulation performance, mechanical performance, thermal stability) die casting to make; Touch spring 5 is contained in touch spring limited step 18 places of conducting rod 2, and on insulating case 3 suit conducting rods 2, an end of conducting rod 2 is fixed on the pre-pressure regulator 16 of contact, thereby finishes insulating case 3, touch spring 5 is fixing.Be arranged on insulating case 3 and conducting rod 2 between owing to touch spring 5 this moment, so insulating case 3 forms the insulating cover 17 of the projection of a tube in the place that touch spring 5 is set, described insulating cover 17 is the part of insulating case 3, in the described insulating cover 17 fixed contact spring 5 is set, fixed contact spring 5 one ends are fixedlyed connected with the end face of insulating cover 17, and the other end is fixedlyed connected with the limited step 18 on the conducting rod 2.
Under the operate as normal---when high-voltage switch gear is closed: operating mechanism 22 savings power, and discharge transferring power to output toggle arm 21, output toggle arm 21 is connected by the input connecting lever 24 of the driving main shaft 25 of drive link 23 and driving mechanism for switch, and moment is delivered on the driving main shaft 25, ears shift fork connecting lever 26 on the driving main shaft 25 rotates the insulation step of pressing on the insulating case 3, thereby drive insulating case 3 to the direction motion of cut-offfing moving contact 7, because an end of contact pressure spring 5 contacts with insulating case 3, the other end connects conducting rod 2, during insulating case 3 motions, 5 compressions of contact pressure spring, cut-off external insulation sleeve 3 pressure of the conducting rod 2 of moving contact 7 to connection, cut-off moving contact 7 motion until being adjacent to cut-offfing part fixed contact 9, and keep-up pressure.This is the feed motion of switch.
During separating brake, when namely high-voltage switch gear is opened.Provide power source by operating mechanism 22 equally, output toggle arm 21 rotates the main shaft 25 of pulling connecting rod 23 and driving mechanism for switch, the insulation step that driving main shaft ears shift fork connecting lever 26 is pressed on the opposite side insulating barrier, insulating case 3 is to moving away from the direction of cut-offfing moving contact 7, contact pressure spring 5 release pressures, thereby drive conducting rod 2, cut-off moving contact 7 to an other lateral movement, realize the disjunction action of switchgear.
Conducting rod length described in the utility model to be can providing enough element installation dimensions and the size that is in transmission connection, and satisfies high-voltage switch gear and cut-off, close that to close the stroke sum be standard, and concrete length scale is decided on the specification situation of high-voltage switch gear.When the thickness of insulating barrier described in the utility model need guarantee necessary mechanical strength, also to guarantee the insulating capacity that under the effect of high pressure field intensity, does not puncture.
The utility model is by the direct-connected driving conduction of driving mechanism for switch major loop, realize the switchgear disjunction, close and close, cancelled the insulated tension pole of using always in the switchgear, connection drive mechanism novelty, installation change conveniently, the switchgear space is compacter, structure is smaller and more exquisite.Secondly be slidingly connected with outlet terminal by insulation conducting rod, the electrical connection of sliding at main conductive circuit, cancelled major loop segmentation type of attachment, cut down be flexible coupling, transition part such as conductive clip, electric conductivity is better, Electric Field Distribution is even thereby make, and has effectively saved cost.Further be through at the first-class unique design in primary conductive loop by the direct cover of touch spring structure, more save the space, no transition connects, and is more reliable and more stable.
The utility model is not limited to above-mentioned embodiment; for example: conducting rod 2 outsides are suit insulating case 3 not also; and with ears shift fork connecting lever 26 outer surface casting insulation layers or directly with insulating material making ears shift fork connecting lever 26; as long as can realize conducting rod 2 and drive insulation coordination between the parts of conducting rod translation; also the swinging structure that drives the ears shift fork connecting lever 26 of conducting rod 2 translations can be replaced with translation structure, such variation still is protection range of the present utility model.
Claims (8)
1. the novel split-combination transmission gear of high-voltage appliance switch comprises conducting rod and is used for the reciprocating driving mechanism for switch of driving conducting rod, it is characterized in that: be provided with insulating barrier between the contact-making surface of described driving mechanism for switch and conducting rod.
2. the novel split-combination transmission gear of high-voltage appliance switch according to claim 1, it is characterized in that: described insulating barrier is the insulating case that is coated on the periphery wall of conducting rod, one end of described conducting rod is electrically connected the moving contact that cut-offs of high-voltage switch gear, and the other end is electrically connected the leading-out terminal of the high-voltage switch gear corresponding with cut-offfing moving contact.
3. the novel split-combination transmission gear of high-voltage appliance switch according to claim 2, it is characterized in that: also include for cushioning and keeping conducting rod and cut-off the touch spring that moving contact contacts pressure, touch spring is arranged on conducting rod and cut-offs the end that moving contact is electrically connected.
4. according to the novel split-combination transmission gear of the arbitrary described high-voltage appliance switch of claim 1-3, it is characterized in that: described driving mechanism for switch comprises operating mechanism, drive link, driving main shaft, described operating mechanism connects an end of drive link by output toggle arm, the other end of drive link connects an end of driving main shaft by the input connecting lever, described driving main shaft is provided with ears fork connecting lever, and described driving main shaft drives the conducting rod reciprocating motion by ears fork connecting lever.
5. the novel split-combination transmission gear of high-voltage appliance switch according to claim 4, it is characterized in that: described conducting rod is coaxial with high-voltage switch gear moving contact leading-out terminal, and conducting rod slides with the moving contact leading-out terminal and is electrically connected.
6. the novel split-combination transmission gear of high-voltage appliance switch according to claim 5, it is characterized in that: be tight fit between described insulating case and conducting rod, described touch spring is sleeved on the outer surface of insulating case, the insulating case outer surface is provided with creepage full skirt near cut-offfing the first end of movable contact, touch spring one end is pressed in the end of creepage full skirt, and the other end is connected by slip making leaf spring and ears shift fork connecting lever.
7. the novel split-combination transmission gear of high-voltage appliance switch according to claim 5, it is characterized in that: be slidingly matched for the gap between described insulating case and conducting rod, outwards convex to form insulating cover near the insulating case that cut-offs the movable contact head end, described moving contact spring is socketed on the interior conducting rod of insulating cover, and touch spring one end is fixedlyed connected with the insulating cover end face, and the limited step of projection is fixedlyed connected on the other end and the conducting rod.
8. the novel split-combination transmission gear of high-voltage appliance switch according to claim 7 is characterized in that: described ears shift fork connecting lever is that the insulating outer layer cast forms whole arc transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320204574 CN203192673U (en) | 2013-04-22 | 2013-04-22 | Novel on/off transmission device for high-voltage electric apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320204574 CN203192673U (en) | 2013-04-22 | 2013-04-22 | Novel on/off transmission device for high-voltage electric apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN203192673U true CN203192673U (en) | 2013-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320204574 Withdrawn - After Issue CN203192673U (en) | 2013-04-22 | 2013-04-22 | Novel on/off transmission device for high-voltage electric apparatus |
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| Country | Link |
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| CN (1) | CN203192673U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219191A (en) * | 2013-04-22 | 2013-07-24 | 许昌永新电气股份有限公司 | High-voltage electric appliance switch novel separate-combined transmission device |
| CN109416987A (en) * | 2016-07-06 | 2019-03-01 | Abb瑞士股份有限公司 | Quick ground switch device for HV application |
-
2013
- 2013-04-22 CN CN 201320204574 patent/CN203192673U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219191A (en) * | 2013-04-22 | 2013-07-24 | 许昌永新电气股份有限公司 | High-voltage electric appliance switch novel separate-combined transmission device |
| WO2014173064A1 (en) * | 2013-04-22 | 2014-10-30 | 许昌永新电气股份有限公司 | New opening-closing transmission apparatus for high-voltage electric appliance switch |
| CN103219191B (en) * | 2013-04-22 | 2015-04-01 | 许昌永新电气股份有限公司 | High-voltage electric appliance switch novel separate-combined transmission device |
| US9437373B2 (en) | 2013-04-22 | 2016-09-06 | Xuchang Yongxin Electric Corporation Limited | On-off transmission device for high voltage electric switch |
| CN109416987A (en) * | 2016-07-06 | 2019-03-01 | Abb瑞士股份有限公司 | Quick ground switch device for HV application |
| US10707037B2 (en) | 2016-07-06 | 2020-07-07 | Abb Power Grids Switzerland Ag | Fast earthing switch device for HV applications |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130911 Effective date of abandoning: 20150401 |
|
| RGAV | Abandon patent right to avoid regrant |