CN110993419A - Six-station low-voltage combination switch - Google Patents

Six-station low-voltage combination switch Download PDF

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Publication number
CN110993419A
CN110993419A CN201911420870.3A CN201911420870A CN110993419A CN 110993419 A CN110993419 A CN 110993419A CN 201911420870 A CN201911420870 A CN 201911420870A CN 110993419 A CN110993419 A CN 110993419A
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CN
China
Prior art keywords
contact seat
rod
conductive
switch
station
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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.)
Pending
Application number
CN201911420870.3A
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Chinese (zh)
Inventor
任广民
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Individual
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Individual
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Priority to CN201911420870.3A priority Critical patent/CN110993419A/en
Publication of CN110993419A publication Critical patent/CN110993419A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02—Details
    • H01H31/023—Base and stationary contacts mounted thereon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02—Details
    • H01H31/026—Movable parts and contacts mounted thereon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02—Details
    • H01H31/04—Interlocking mechanisms
    • H01H31/10—Interlocking mechanisms for interlocking two or more switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
    • H01H31/32—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with rectilinearly-movable contact

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

Abstract

The invention relates to a six-station low-voltage combined switch which comprises a switch frame, wherein two three-station switches are symmetrically arranged on the switch frame in the vertical direction, the two three-station switches are identical in structure, each three-station switch comprises an upper contact seat, a middle contact seat and a lower contact seat which are sequentially arranged in the vertical direction, each lower contact seat is a grounding contact seat, a guide rail is arranged on the switch frame, a sliding block assembly is assembled on each guide rail in a sliding mode, each guide rail is in the vertical direction in the length direction, each sliding block assembly is connected with a guide rod, each guide rod comprises an insulating rod and a conductive rod, the lower end of each insulating rod is fixed on each sliding block assembly, each insulating rod penetrates through each lower contact seat, the lower end of each conductive rod is connected with the upper end of each insulating rod, each conductive rod is in normal conductive contact with each middle contact seat, and the middle contact seats belonging. The combined switch has six stations, and two three-station switches can be operated independently and have the characteristic of small occupied space.

Description

Six-station low-voltage combination switch
Technical Field
The invention relates to switch equipment in the field of power transmission and distribution, in particular to a six-station low-voltage combination switch.
Background
In the low-voltage distribution field, when maintaining and repairing transformers, cables, high-power rectifying equipment, electric furnaces and the like, cable connectors are often required to be disassembled, then grounding wires are hung manually, and the originally disassembled parts are required to be reassembled after the maintenance and repair are completed. These works are cumbersome, waste manpower and time, and work efficiency is very low. Therefore, it is necessary to develop a new and miniaturized low voltage switch to meet the requirements of special occasions.
Disclosure of Invention
The invention aims to provide a six-station low-voltage combination switch which occupies small space.
In order to achieve the purpose, the invention adopts the following technical scheme:
a six-station low-voltage combination switch comprises a switch frame, wherein two three-station switches are symmetrically arranged on the switch frame in the vertical direction, the two three-station switches are identical in structure and comprise an upper contact seat, a middle contact seat and a lower contact seat which are sequentially arranged in the vertical direction, the lower contact seat is a grounding contact seat, a guide rail is arranged on the switch frame, the length direction of the guide rail is in the vertical direction, a sliding block assembly is assembled on the guide rail in a sliding mode, a guide rod is connected onto the sliding block assembly and comprises an insulating rod and a conductive rod, the lower end of the insulating rod is fixed onto the sliding block assembly, the insulating rod penetrates through the lower contact seat, the lower end of the conductive rod is connected with the upper end of the insulating rod, the conductive rod is inserted into the middle contact seat and is in normal conductive contact with the middle contact seat, and the conductive rod can be selectively in conductive contact with the upper contact;
the middle contact seats respectively belonging to the two three-position switches are in conductive connection through copper bars.
Furthermore, the upper contact seat, the middle contact seat and the lower contact seat are internally provided with conductive contact fingers which are used for being matched with the conductive rod.
Further, the conductive contact finger is a spring contact finger.
Furthermore, the switch frame comprises a metal support and two insulating supports arranged on the metal support, the two insulating supports respectively belong to an upper three-position switch and a lower three-position switch, two mounting grooves for mounting the upper contact seat and the middle contact seat are formed in the insulating supports, and the two mounting grooves are provided with through holes which are coaxial up and down.
Further, the lower end of the conductive rod is connected with the upper end of the insulating rod through a pin.
Further, the sliding block assembly comprises a sliding block assembled on the guide rail in a sliding mode and a bent plate arranged on the sliding block, and the lower end of the insulating rod is fixed on the bent plate.
Furthermore, the upper and lower three-position switches share one guide rail.
Furthermore, when the conducting rod is not in contact with the upper contact seat and the lower contact seat, the three-station switch is in a first station; when the conducting rod is simultaneously contacted with the upper contact seat and the middle contact seat, the three-station switch is positioned at a second station; when the conducting rod is simultaneously contacted with the middle contact seat and the lower contact seat, the three-station switch is in a third station.
The invention has the beneficial effects that:
the six-station low-voltage combination switch comprises two symmetrically-arranged three-station switches, each three-station switch can be independently operated and is provided with three stations, and separation and reunion, separation and grounding connection are realized. The middle contact seats of the two three-position switches are in conductive connection through copper bars, so that the functions of electrical connection, electrical isolation, respective grounding and the like of equipment on the two sides of the switches are realized. The guide rods of the two three-position switches move linearly in the vertical direction, so that the occupied space is small, and the advantages are obvious especially in case of heavy current.
Drawings
FIG. 1 is a side view (in cross-section) of a six-position, low-voltage combination switch of the present invention in a first position;
FIG. 2 is a side view (in cross-section) of the six-position, low-voltage combination switch of the present invention in the first position;
FIG. 3 is a schematic view of the upper three position switch of FIG. 1 in a second position;
fig. 4 is a schematic diagram of the upper three-position switch of fig. 1 in a third position.
Names corresponding to the marks in the figure:
1. the device comprises a metal support, 2, an insulating support, 3, an upper contact base, 4, a spring contact finger, 5, a middle contact base, 6, a conductive rod, 7, a pin, 8, an insulating rod, 9, a lower contact base, 10, a second screw, 11, a bent plate, 12, a bolt, 13, a guide rail, 14, a sliding block, 15, a panel, 16, a first screw, 17 and a copper bar.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The invention discloses an embodiment of a six-station low-voltage combination switch, which comprises the following steps:
as shown in fig. 1-2, the six-station low-voltage combination switch includes a switch frame, and two three-station switches, which are respectively marked as an upper three-station switch and a lower three-station switch, are symmetrically arranged on the switch frame in the vertical direction. The two three-position switches have the same structure and can be independently operated. The switch frame comprises a metal support 1 and two insulating supports 2 arranged on one side of the metal support 1, and the insulating supports 2 are fixed on the metal support 1 through first screws 16. The two insulating supports are arranged up and down and respectively correspond to the upper three-position switch and the lower three-position switch. The other side of the metal bracket 1 is provided with a panel 15.
The switch frame is provided with a guide rail 13, and the length direction of the guide rail 13 is along the vertical direction. Two guide rails are arranged in parallel in the left and right direction.
For the convenience of understanding, the following part is a detailed structural description taking the above three-position switch as an example.
The upper three-station switch comprises an upper contact seat 3, a middle contact seat 5 and a lower contact seat 9 which are sequentially arranged along the vertical direction, and the lower contact seat 9 is a grounding contact seat. Two mounting grooves for mounting the upper contact base 3 and the middle contact base 5 are formed in the insulating support 2, and the two mounting grooves are provided with through holes which are coaxial up and down. The insulating support 2 is fixed to the metal support 1 by first screws 16. In other embodiments, the upper contact seat 3 and the middle contact seat 5 can be directly cast with the insulating support 2.
The guide rail 13 is slidably fitted with a slider assembly including a slider 14 slidably fitted on the guide rail 13 and a bent plate 11 fixed to the slider 14 by a second screw 10. The slider component is connected with a guide rod, the guide rod comprises an insulating rod 8 and a conductive rod 6, the lower end of the insulating rod 8 is fixed on the bent plate 11, and the insulating rod 8 penetrates through the lower contact seat 9. The slider 14 is movable in the up-and-down direction along the guide rail 13 by the operation mechanism.
The lower end of the conducting rod 6 is connected with the upper end of the insulating rod 8 through a pin 7, and the conducting rod 6 is inserted in the middle contact seat 5. The conducting rod 6 is in normal conducting contact with the middle contact base 5, and the conducting rod 6 can be selectively in conducting contact with the upper contact base or the lower contact base in the movement process.
And conductive contact fingers are arranged in the upper contact seat 3, the middle contact seat 5 and the lower contact seat 9 and are used for being matched with the conductive rod 6. The conductive contact performance of the conductive rod 6 and the corresponding contact seat is improved. The conductive contact finger is preferably a spring contact finger 4, and the spring contact finger 4 has the characteristics of small operating force, large through-current capacity and low requirement on part machining errors; of course, other embodiments may include other types of conductive fingers, such as a strap finger, etc.
The above is a description of one phase in the upper three-position switch, and the other two phases have the same structure and are not described again. The structure of the lower three-position switch on the other side is not described in detail.
The middle contact seats respectively belonging to the upper three-position switch and the lower three-position switch are in conductive connection through a copper bar 17.
The action principle of the upper three-position switch is as follows:
as shown in fig. 1 and 2, the conducting rod 6 is inserted into the middle contact base 5, and when the conducting rod is not in contact with the upper contact base 3 and the lower contact base 9, the switch is in the first station, that is, the disconnecting switch is in the separated position, and the grounding switch is in the separated position. The slide block 14 moves upwards under the driving of the operating mechanism, the conducting rod 6 moves upwards, and as shown in fig. 3, when the conducting rod 6 is in conductive contact with the upper contact base 3 and the middle contact base 5 at the same time, the switch is in a second working position, namely an on position of the isolating switch and an off position of the grounding switch. The slide block 14 moves downwards under the driving of the operating mechanism, the conducting rod 6 moves downwards, and as shown in fig. 4, when the conducting rod 6 is in conductive contact with the middle contact base 5 and the lower contact base 9 at the same time, the switch is in a third station, namely, the disconnecting switch is in a separated position, and the grounding switch is in a closed position, so that the grounding function is realized.
The upper three-position switch and the lower three-position switch are respectively connected with an electrical device, and the two three-position switches can be respectively operated to realize the functions of electrical conduction, isolation, grounding and the like. The upper three-position switch controls the transformer, and the lower three-position switch controls the rectifying equipment.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.

Claims (8)

1. The utility model provides a six station low pressure combination switches which characterized in that: the three-position switch comprises an upper contact seat, a middle contact seat and a lower contact seat which are sequentially arranged along the vertical direction, the lower contact seat is a grounding contact seat, a guide rail is arranged on the switch frame, the length direction of the guide rail is along the vertical direction, a sliding block assembly is assembled on the guide rail in a sliding mode, a guide rod is connected onto the sliding block assembly and comprises an insulating rod and a conductive rod, the lower end of the insulating rod is fixed onto the sliding block assembly, the insulating rod penetrates through the lower contact seat, the lower end of the conductive rod is connected with the upper end of the insulating rod, the conductive rod is inserted into the middle contact seat, the conductive rod is in normal conductive contact with the middle contact seat, and the conductive rod can be selectively in conductive contact with the upper contact seat or the lower contact seat in the motion process;
the middle contact seats respectively belonging to the two three-position switches are in conductive connection through copper bars.
2. A six-position low-voltage combination switch according to claim 1, characterized in that: and conductive contact fingers are arranged in the upper contact seat, the middle contact seat and the lower contact seat and are used for being matched with the conductive rod.
3. A six-position low-voltage combination switch according to claim 2, characterized in that: the conductive contact finger is a spring contact finger.
4. A six-position low-voltage combination switch according to claim 1, characterized in that: the switch frame comprises a metal support and two insulating supports arranged on the metal support, the two insulating supports respectively belong to an upper position and a lower position, the three-position switch is provided with two mounting grooves for mounting the upper contact seat and the middle contact seat, and the two mounting grooves are provided with through holes which are coaxial up and down.
5. A six-position low-voltage combination switch according to claim 1, characterized in that: the lower end of the conducting rod is connected with the upper end of the insulating rod through a pin.
6. A six-position low-voltage combination switch according to claim 1, characterized in that: the sliding block assembly comprises a sliding block and a bent plate, the sliding block is assembled on the guide rail in a sliding mode, the bent plate is arranged on the sliding block, and the lower end of the insulating rod is fixed to the bent plate.
7. A six-position low-voltage combination switch according to claim 1, characterized in that: the upper and lower three-position switches share one guide rail.
8. A six-position low-voltage combination switch according to any one of claims 1 to 7, characterized in that: when the conducting rod is not in contact with the upper contact seat and the lower contact seat, the three-station switch is in a first station; when the conducting rod is simultaneously contacted with the upper contact seat and the middle contact seat, the three-station switch is positioned at a second station; when the conducting rod is simultaneously contacted with the middle contact seat and the lower contact seat, the three-station switch is in a third station.
CN201911420870.3A 2019-12-31 2019-12-31 Six-station low-voltage combination switch Pending CN110993419A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911420870.3A CN110993419A (en) 2019-12-31 2019-12-31 Six-station low-voltage combination switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911420870.3A CN110993419A (en) 2019-12-31 2019-12-31 Six-station low-voltage combination switch

Publications (1)

Publication Number Publication Date
CN110993419A true CN110993419A (en) 2020-04-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911420870.3A Pending CN110993419A (en) 2019-12-31 2019-12-31 Six-station low-voltage combination switch

Country Status (1)

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CN (1) CN110993419A (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101515518A (en) * 2009-02-14 2009-08-26 魏巍 Combined electrical apparatus isolation earthing switch operating mechanism
CN201966116U (en) * 2010-12-29 2011-09-07 常州森源力拓开关有限公司 Three-station isolating switch
CN102623231A (en) * 2012-03-23 2012-08-01 中能电气（福清）有限公司 Solid-sealed polar column unit for solid insulation switch equipment
CN203192672U (en) * 2013-04-19 2013-09-11 镇江维依埃电工研究所有限公司 Direct-acting three-position isolating switch
CN203445048U (en) * 2013-09-24 2014-02-19 东盟电气集团浙江开关有限公司 Three-station double grounding load switch
CN104124095A (en) * 2014-08-12 2014-10-29 深圳市森源电力技术有限公司 Straight-moving type three-station isolation switch
CN205230913U (en) * 2015-11-23 2016-05-11 湖南平高开关有限公司 Three -position isolation grounding switch
CN205984768U (en) * 2016-07-07 2017-02-22 宁波天安集团开关有限公司 Three -station isolation switch of many contact points of integral type
JP6169289B1 (en) * 2016-04-28 2017-07-26 三菱電機株式会社 Switch
CN206516552U (en) * 2017-02-24 2017-09-22 山东泰开成套电器有限公司 A kind of double ground connection multistation disconnecting switch
CN207611711U (en) * 2017-12-29 2018-07-13 青岛特锐德电气股份有限公司 A kind of tri-station isolating switch

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101515518A (en) * 2009-02-14 2009-08-26 魏巍 Combined electrical apparatus isolation earthing switch operating mechanism
CN201966116U (en) * 2010-12-29 2011-09-07 常州森源力拓开关有限公司 Three-station isolating switch
CN102623231A (en) * 2012-03-23 2012-08-01 中能电气（福清）有限公司 Solid-sealed polar column unit for solid insulation switch equipment
CN203192672U (en) * 2013-04-19 2013-09-11 镇江维依埃电工研究所有限公司 Direct-acting three-position isolating switch
CN203445048U (en) * 2013-09-24 2014-02-19 东盟电气集团浙江开关有限公司 Three-station double grounding load switch
CN104124095A (en) * 2014-08-12 2014-10-29 深圳市森源电力技术有限公司 Straight-moving type three-station isolation switch
CN205230913U (en) * 2015-11-23 2016-05-11 湖南平高开关有限公司 Three -position isolation grounding switch
JP6169289B1 (en) * 2016-04-28 2017-07-26 三菱電機株式会社 Switch
CN205984768U (en) * 2016-07-07 2017-02-22 宁波天安集团开关有限公司 Three -station isolation switch of many contact points of integral type
CN206516552U (en) * 2017-02-24 2017-09-22 山东泰开成套电器有限公司 A kind of double ground connection multistation disconnecting switch
CN207611711U (en) * 2017-12-29 2018-07-13 青岛特锐德电气股份有限公司 A kind of tri-station isolating switch

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Application publication date: 20200410