CN2916905Y - Indoor medium voltage isolating switch - Google Patents

Indoor medium voltage isolating switch Download PDF

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Publication number
CN2916905Y
CN2916905Y CN 200620104717 CN200620104717U CN2916905Y CN 2916905 Y CN2916905 Y CN 2916905Y CN 200620104717 CN200620104717 CN 200620104717 CN 200620104717 U CN200620104717 U CN 200620104717U CN 2916905 Y CN2916905 Y CN 2916905Y
Authority
CN
China
Prior art keywords
isolating switch
switch
insulating cover
guide plate
underframe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 200620104717
Other languages
Chinese (zh)
Inventor
朱佩龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TIANAN (GROUP) CO Ltd NINGBO CITY
Original Assignee
TIANAN (GROUP) CO Ltd NINGBO CITY
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TIANAN (GROUP) CO Ltd NINGBO CITY filed Critical TIANAN (GROUP) CO Ltd NINGBO CITY
Priority to CN 200620104717 priority Critical patent/CN2916905Y/en
Application granted granted Critical
Publication of CN2916905Y publication Critical patent/CN2916905Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses an indoor medium pressure isolating switch, which comprises a bottom support, an upper and a lower insulation shade and a cinquefoil static contactor that composes a conductor. A transitional contactor and a round tube type movable switch are enclosed inside their own hollow cavities formed by the upper and lower insulation shades and are supported by a horizontal insulation rod; a transmission mechanism, which is positioned at the two sides of the bottom support by an isolating operation axle to realize synchronized dynamic transmission, performs upward and downward straight line movement along a guide plate under the action of a guide roller; then, the switch will be brought by the horizontal insulation rod to realize insert type connection or isolation. The utility model has the advantages of compact and feasible layout and structure, reduction of switch movement space, reliable electric contact, minimized switch cabinet and division of two functional units in cabinet distribution.

Description

Press isolating switch in indoor
Technical field
The utility model relates to a kind of device for switching technical field, particularly a kind of indoor middle isolating switch of pressing as switch conduction or buffer circuit.
Background technology
Indoors in the Medium voltage switch or circuit breaker appliance circuit as the conducting or the isolation of circuit, electric pressure is the indoor middle isolating switch of pressing of 6~40.5KV, as model is GN2, GN10, GN19, GN21, GN23, GN25, GN27 etc., by underframe, insulator, the isolated operation axle, transmission mechanism, the three-phase that constitutes electric conductor is moving, the first-class composition of stationary contact, its moving contact generally is a knife plate formula structure, electrical contact reliability is not high, motion mode is realized switch conduction or isolation for the motion of rotation moving knife plate, space is big, when joining the cabinet use, can't cut apart cable vault or two functional units of breaker chamber of top bus-bar room and bottom naturally.
Summary of the invention
The purpose of this utility model all provide in the defective that overcomes prior art a kind of compact conformation, volume little, electrically contact reliable, joining and can be divided into pressure isolating switch in two bus-bar rooms above the functional unit and subjacent cable chamber or breaker chamber indoor when cabinet uses naturally.
The utility model is finished by the following technical programs: a kind of indoor middle isolating switch of pressing, it comprises underframe, be fixed on the underframe on, following insulating cover and both sides guide plate, realize the isolated operation axle of conducting or isolation, divide the transmission mechanism that is located at the synchronous transferring power in underframe both sides, the three-phase that constitutes electric conductor is moving, fixed contact, the three-phase fixed contact that it is characterized in that described formation electric conductor, the transition contact and the moving knife lock that are fixed on the conductive plate are closed on each freedom, in the cavity that following insulating cover constitutes, and by same eradication edge cross bar support, in realization plug-in type conducting or isolation under the transmission mechanism driving, following straight path motion.
Described transmission mechanism is support with underframe and guide plate, is provided with chain wheel pair at isolated operation axle both ends, and the sprocket wheel output shaft is provided with gear, fixes with the rack-plate end and the insulation cross bar of gears engaged, moves along guide plate is upper and lower in both sides.
Be fixed with upper and lower two guide rollers on the described rack-plate, this roller is fitted in the interior slippage guiding of elongated slot of guide plate.
Quincunx, the cylindrical structure of moving knife lock that described three-phase fixed contact and transition contact are.
Described insulating cover down is transparent mode or opaque formula, and the following insulating cover of opaque formula is provided with observation window.
The utility model compared with prior art, its invention effect is embodied in: 1. the three-phase electric conductor is comprised that fixed contact, transition contact and moving knife lock are enclosed in separately in the insulating cover, and support the upper and lower straight path motion of realization moving knife lock by same insulation cross bar and realize plug-in type conducting or isolation, this topology layout compact and reasonable, can reduce moving knife lock space, overall structure is dwindled greatly; 2. the moving knife lock of pipe shape and quincunx fixed contact electrical contact reliability are good, avoid the loose contact phenomenon, guarantee security of operation; 3. will descend insulating cover to be designed to the opaque formula of transparent mode or band observation window, can be observed the conducting or the isolation of switch; 4. when joining the cabinet use, when the moving knife lock is in the isolated location, be easy to handle the position relation of circuit breaker and isolating switch, make switch cubicle reach the miniaturization purpose, can be divided into top bus-bar room and the subjacent cable chamber or the breaker chamber of two functional units naturally.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model isolation cutaway view.
Fig. 3 is the utility model conducting state cutaway view.
Fig. 4 isolates cavity stereogram (following insulating cover is the opaque formula of band inspection hole) for the utility model.
Fig. 5 is applied to 40.5KV switch cubicle layout plan for the utility model.
Embodiment
As shown in Figure 1, press isolating switch that the underframe 2 of one rectangular frame is arranged in indoor, insulating cover 5 is fixed on the underframe on the three-phase, and fix with following insulating cover 6, constitute the fixed contact 14 of electric conductor, transition contact 15, pipe shape moving knife lock 9 is enclosed on each freedom, in the cavity that following insulating cover constitutes, quincuncial fixed contact is fixed on the last conductive seat 13 of inner top of insulating cover, remaining the quincunx transition contact 15 that electrically contacts with the moving knife lock is fixed on down in the insulating cover, transition contact is electrically connected with the conductive plate 8 of angle square shape, make the electric current of importing by fixed contact through the moving knife lock, transition contact, conductive plate and by the conductive plate output current, the conductive plate of transition contact and angle square shape is again on the round tube shape structure moving knife lock at the same time, following straight path guide element moving.Three-phase pipe shape moving knife lock 9 is fixed with same insulation cross bar 7 and by its support, is driven the moving knife lock and do the plug-in type conducting or isolate motion under transmission mechanism drives.
Transmission mechanism supports with underframe 2 and guide plate 3, guide plate is fixed on the underframe, control the synchronous transferring power in driving both sides by isolated operation axle 1, the chain wheel pair of forming by sprocket wheel and chain 12, the gear (not shown) is installed on the sprocket wheel output shaft, these wheel and rack plate 10 engagements, the end of this rack-plate is fixing with insulation cross bar 7, and the upper and lower motion of rack-plate realizes conducting or isolation through the pipe shape moving knife lock that the insulation cross bar drives electric conductor.In power transmission process, in order to ensure the linearity of the upper and lower motion of rack-plate, upper and lower two guide rollers 11 are installed on rack-plate, this roller is along the set elongated slot 4 upper and lower slippage guiding of guide plate.
Fig. 2 is in isolation for the moving knife lock separates with fixed contact.Fig. 3 is in conducting state for the moving knife lock combines with fixed contact.Fig. 4 is for isolating cavity, and insulating cover 6 can be made transparent mode or opaque formula under it, and opaque insulating cover down is provided with observation window 16, so that observe conducting or the isolation situation of electric conductor when operation at any time.
Specified arrangement design of the present utility model makes when joining the cabinet use, can be divided into two functional units, i.e. the cable vault of Shang Mian bus-bar room and bottom or breaker chamber.Fig. 5 is applied to the layout plan of 40.5KV switch cubicle for this switch 21, promptly with the layout of bus-bar room 17, current transformer 18, cable vault 19, circuit breaker 20.Because moving knife lock 9 is straight path motions, three-phase thoroughly does away with the 7 fixing and drives of edge cross bar by one, when the moving knife lock is in the isolated location, can be easy to handle the position relation of circuit breaker and isolating switch, makes switch cubicle reach miniaturization.

Claims (5)

1, a kind of indoor middle isolating switch of pressing, it comprises underframe (2), be fixed on the underframe on, following insulating cover (5), (6) and both sides guide plate (3), realize the isolated operation axle (1) of conducting or isolation, divide the transmission mechanism that is located at the synchronous transferring power in underframe both sides, the three-phase that constitutes electric conductor is moving, fixed contact, the three-phase fixed contact (14) that it is characterized in that described formation electric conductor, the transition contact (15) and the moving knife lock (9) that are fixed on the conductive plate (8) are closed on each freedom, in the cavity that following insulating cover constitutes, and by same eradication edge cross bar (7) support, in realization plug-in type conducting or isolation under the transmission mechanism driving, following straight path motion.
2, the indoor middle isolating switch of pressing according to claim 1, it is characterized in that described transmission mechanism is support with underframe (2) and guide plate (3), be provided with chain wheel pair (12) at isolated operation axle (1) both ends, the sprocket wheel output shaft is provided with gear, fixing with insulation cross bar (7) with rack-plate (10) end of gears engaged, both sides are along the upper and lower motion of guide plate (3).
3, the indoor middle isolating switch of pressing according to claim 2 is characterized in that being fixed with on the described rack-plate (10) upper and lower two guide rollers (11), and this roller is fitted in the interior slippage guiding of elongated slot (4) of guide plate.
4, the indoor middle isolating switch of pressing according to claim 1 is characterized in that described three-phase fixed contact (14) and transition contact (15) are quincunx, the cylindrical structure of moving knife lock (9).
5, according to each described indoor middle isolating switch of pressing of claim 1~4, it is characterized in that described insulating cover (6) down is transparent mode or opaque formula, the following insulating cover of opaque formula is provided with observation window (16).
CN 200620104717 2006-06-12 2006-06-12 Indoor medium voltage isolating switch Expired - Lifetime CN2916905Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620104717 CN2916905Y (en) 2006-06-12 2006-06-12 Indoor medium voltage isolating switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620104717 CN2916905Y (en) 2006-06-12 2006-06-12 Indoor medium voltage isolating switch

Publications (1)

Publication Number Publication Date
CN2916905Y true CN2916905Y (en) 2007-06-27

Family

ID=38187818

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620104717 Expired - Lifetime CN2916905Y (en) 2006-06-12 2006-06-12 Indoor medium voltage isolating switch

Country Status (1)

Country Link
CN (1) CN2916905Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102074404A (en) * 2011-01-31 2011-05-25 湖北网安科技有限公司 High-reliability outdoor high-voltage isolation switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102074404A (en) * 2011-01-31 2011-05-25 湖北网安科技有限公司 High-reliability outdoor high-voltage isolation switch

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned
C20 Patent right or utility model deemed to be abandoned or is abandoned