CN101887819A - Vacuum switch - Google Patents
Vacuum switch Download PDFInfo
- Publication number
- CN101887819A CN101887819A CN2009101605640A CN200910160564A CN101887819A CN 101887819 A CN101887819 A CN 101887819A CN 2009101605640 A CN2009101605640 A CN 2009101605640A CN 200910160564 A CN200910160564 A CN 200910160564A CN 101887819 A CN101887819 A CN 101887819A
- Authority
- CN
- China
- Prior art keywords
- panel
- electrical fuses
- vacuum switch
- vacuum
- fuse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- 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
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
-
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/0241—Structural association of a fuse and another component or apparatus
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0354—Gas-insulated switchgear comprising a vacuum switch
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H2009/0292—Transparent window or opening, e.g. for allowing visual inspection of contact position or contact condition
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Trip Switchboards (AREA)
- Fuses (AREA)
Abstract
The invention provides a vacuum switch that can reduce the distance between the front part and panel of the electric fuse. The inventive vacuum switch has a vacuum interrupter (3), including an electrical fuse (18), wherein a protection panel is arranged on the front face of the electric fuse, a plurality of electric fuses (18) setup corresponding to each phase are configured above the vacuum interrupter (3) at a state that the length direction faces to the fore-and-aft direction of the vacuum switch and they are arranged in a row in the lateral direction seen from the front face side, a rectangle shape window (25a) is formed on the position of the panel (25) relative to the front part of each electric fuse (18), the lateral direction width is larger than the maximum width of the arranged electric fuse (18), the longitudinal width is greater than the maximum diameter of the arranged electric fuse (18), an insulating board (27) stopping the window is mounted on the back face of the panel through a linking member (28).
Description
Technical field
The present invention relates to a kind of vacuum switch of subsidiary electrical fuses, relate in particular to the panel of the front surface of protection vacuum switch.
Background technology
Be provided with the vacuum switch of the existing subsidiary electrical fuses of over cap as the front, known to as shown in Figure 4 high pressure vacuum electromagnetic contactor arranged.As shown in the figure, insulation frame 32 is installed on the framework 31 with wheel, its inboard disposes 3 phase vacuum interrupters (vacuum interrupter) 33, and the below of vacuum interrupter 33 disposes has the electromagnet that drives usefulness and the electromagnetic operating mechanism (not shown) of movable core.In addition, above vacuum interrupter 33, dispose the electrical fuses 34 that fault current cuts off usefulness accordingly with each.
The electrical fuses 34 that high-voltage charge portion exposes and the front of vacuum interrupter 33 are provided with over cap 35 (panel that is equivalent to the present application).This over cap 35 is by making an one sidepiece engage with the outstanding fastening pin 36 that is located on the insulation frame 32, utilizing two screws 38 to be attached on the connecting plate 37 by framework 31 supports another end to fix (for example with reference to patent documentation 1).
Patent documentation 1: Japan Patent is real open clear 63-69331 communique (the 4th page, Fig. 1)
The over cap (below be called panel) of the front surface of protection vacuum switch needs certain intensity based on its application target, therefore, uses metallic plate usually.In the existing high-tension electricity magnetic contactor shown in patent documentation 1, whole surface is all covered by the panel of metallic plate system, therefore, if guarantee insulation distance between electrical fuses front part and panel, then need the above isolation size of minimum insulation distance, its result can exist vacuum switch to become big problem.
Summary of the invention
The present invention does for solving the problems of the technologies described above, and its purpose is to obtain a kind ofly can dwindle the front part of electrical fuses and the vacuum switch of the distance between panel.
The vacuum switch that the present invention relates to has the vacuum interrupter of built-in fixed contact and travelling contact; comprise a plurality of electrical fuses that are electrically connected with each fixed contact side mutually of vacuum interrupter; and portion is provided with the panel of protection usefulness in front; each electrical fuses is with the fore-and-aft direction of length direction towards vacuum switch; and see that from front face side the form that laterally forms a line is configured in the top of vacuum interrupter; on the position relative with the front part of electrical fuses; panel has rectangular-shaped window; its transverse width is greater than the Breadth Maximum of transversely arranged electrical fuses; vertically width is equipped with the insulation board that clogs window greater than the diameter of electrical fuses at the back side of panel.
In the vacuum switch of the present invention, with each a plurality of electrical fuses that are provided with mutually of correspondence with the fore-and-aft direction of length direction towards vacuum switch, and see that from front face side the form that laterally forms a line is configured in the top of vacuum interrupter, on the position relative panel, has rectangular-shaped window with front part each electrical fuses, its transverse width is greater than the Breadth Maximum of transversely arranged electrical fuses, vertically width is greater than the diameter of electrical fuses, the insulation board that clogs window is installed at the back side of panel, therefore, can improve the front part of electrical fuses and the withstand voltage properties between panel, can shorten the isolation distance between electrical fuses and panel substantially, thereby realize the miniaturization of vacuum switch.
Description of drawings
Fig. 1 is the front view of the vacuum switch of embodiment of the present invention 1.
Fig. 2 is the end view of the vacuum switch of Fig. 1.
Fig. 3 is mounted in the insulation board on the panel of vacuum switch of Fig. 1.
Fig. 4 is existing vacuum electromagnetic contactor with panel.
(symbol description)
1 chassis
2 insulation frames
3 vacuum interrupters
4 fixed contacts
5 travelling contacts
6 fixed levers
7 movable rod
8 fixation side terminals
9 insulating bars
10 rotation axiss
11 bars
12 movable side terminals
13 movable side main circuit conductors
14,23 contacts
15 supporting members
16 movable cores
17 electromagnet
18 electrical fuses
18a fuse striker
The 18b fuse lid
19 fuse holders
20,21 bonding conductors
22 fixation side main circuit conductors
24 insulating barriers
25 panels
The 25a window
26,28 coupling members
27 insulation boards
Embodiment
Below, based on Fig. 1 and Fig. 2 the vacuum switch of execution mode 1 is described.
In the insulation frame 2 on being installed in chassis 1, the vacuum interrupter 3 that constitutes the main circuit contact of vacuum switch disposes mutually side by side with 3.In the vacuum interrupter 3, as shown in Figure 2, be built-in with fixed contact 4 and travelling contact 5 in vacuum tank, fixed lever 6 leads to the outside from fixed contact 4, and movable rod 7 leads to the outside from travelling contact 5.The front of fixed lever 6 be fixed on the fixation side terminal 8 of insulation on the frame 2 and be connected, the front of movable rod 7 is connected by the bar 11 that an insulating bar 9 and an end are fixed in rotation axis 10.In addition, the pars intermedia of the movable rod 7 of drawing from vacuum tank is connected with movable side terminal 12 on being fixed on insulation frame 2 by flexible conductor.This movable side terminal 12 is connected with movable side main circuit conductor 13 simultaneously, and its leading section is provided with the contact 14 that is connected with the load-side conductor.Movable side main circuit conductor 13 is supported by the supporting member 15 that is fixed on the chassis 1.
The below of vacuum interrupter 3 disposes the electromagnetic operating mechanism with movable core 16 and electromagnet 17.After movable core 16 was attracted by electromagnet 17, rotation axis 10 rotated, and drive rod 11 linkedly, and this actuating force is delivered to insulating bar 9, movable rod 7, travelling contact 5, made 4,5 contacts of two contacts, separated.
The top of vacuum interrupter 3 disposes the electrical fuses 18 of each phase of corresponding 3 phase vacuum interrupters 3, and when the electric current more than regulation flow through, electrical fuses 18 was with circuitry cuts.The configuration direction of each electrical fuses 18 is: make 3 to walk abreast mutually, its length direction level is towards the fore-and-aft direction of vacuum switch, and from front face side, the configuration of 3 electrical fuses 18 laterally forms a line as shown in Figure 1.
In the electrical fuses 18, the axle center part of the fuse of front face side has fuse striker 18a.Shown in the dotted line among Fig. 2, fuse striker 18a is subjected to spring action and fusing indication device outstanding vertically, expression fusing when fuse action, fusing.The place ahead of fuse striker 18a is provided with fusing checkout gear (not shown), when detecting when outstanding, for example by auxiliary relay vacuum switch is sent and cuts off instruction, because it is not a major part of the present invention, therefore omits detailed description thereof.
In addition, be provided with insulating barrier 24 between each phase electrical fuses 18.
At the front face of vacuum switch, i.e. the insulate front face of frame 2, the panel 25 of the front surface of protection vacuum switch is fixed on chassis 1 and the insulation frame 2 by coupling members such as bolt 26, is arranged to and can loads and unloads.Panel 25 is made by sheet metal, is covered with the operating portion of electrical fuses 18, vacuum interrupter 3 and electromagnetic operating mechanism etc. that high-voltage charge portion exposes, the exposed portions serve of controller, guarantees operator's safety in these members of protection.
As shown in Figure 1, panel 25 is formed with rectangular-shaped window 25a on the position relative with the front part of each electrical fuses 18, its transverse width is greater than the Breadth Maximum of 3 transversely arranged phase electrical fuses 18, and vertically width is greater than the diameter (fuse lid 18b portion is a maximum gauge) of electrical fuses 18.
In addition, on the back side of plate 25, be fixed with insulation board 27, with a window 25a that clogs panel 25 and a part that covers the upper surface of electrical fuses 18 by coupling members such as bolt or Screw 28.As shown in Figure 3, insulation board 27 is by adopting transparent or semitransparent insulating sheet material (for example acrylic panel), the cross section is curved L word shape forming.The upper face side that forms L word shape is the part that covers the upper surface part of electrical fuses 18, in addition, also two sides can be converted into too the part of L word shape with the side of covering electrical fuses 18.
More than the structure of Shuo Ming vacuum switch (the particularly structure of electromagnetic operating mechanism portion) is an example, is not limited to figure.Dispose operating mechanism, top and have the vacuum switch that electrical fuses 18, front face side be provided with panel 25 and get final product so long as central portion has the below of vacuum interrupter 3, vacuum interrupter 3.
The panel 25 with said structure and the effect of insulation board 27 are described.
The fuse lid 18b of electrical fuses 18 is the high-voltage charging portions of exposing.On the other hand, metal panel 25 is grounding parts.Therefore, from the viewpoint of proof voltage, be the most weak part between the fuse lid 18b of the front face side of electrical fuses 18 and the panel 25, in order to obtain necessary withstand voltage properties, need guarantee the insulation distance of stipulating.
Therefore, in the vacuum switch of the application's execution mode 1, on the relative position of the front part with electrical fuses 18 of panel 25, offer window 25a,, use insulation board 27 to clog peristome in addition substantially to increase insulation distance between the two.Thus, can improve withstand voltage properties.In other words, if identical the getting final product of withstand voltage properties when not having window 25a then can be shortened the isolation distance of electrical fuses 18 and panel 25.
Utilize Fig. 2 to describe in more detail.If the distance from the end of fuse lid 18b to the edge of opening of window 25a is D, the minimum range (axial distance) from the front surface of fuse lid 18b to panel 25 is d.When not having window 25a, need guarantee size d as the insulation distance of necessity, during fenestrate 25a, only the insulation distance that dimension D is necessitated gets final product.That is,, can make the isolation distance of fuse lid 18b and panel 25 dwindle (D-d) by window 25a is set.Consequently, can realize the miniaturization of vacuum switch.
In addition, transparent or semitransparent by insulation board is made, under the situation of the electrical fuses 18 that attaches fuse striker 18a, by the visual action that just can confirm that blown fuse, fuse striker 18a give prominence to of window 25a.Therefore, the fusing that the fuse action detection device just can easily be known fuse need not be set.
If not the electrical fuses of subsidiary fuse striker, then insulation board 27 need not be made transparent or semitransparently, adopt opaque insulation board 27 to get final product.
As implied above, in the vacuum switch of execution mode 1, with each a plurality of electrical fuses that are provided with mutually of correspondence with the fore-and-aft direction of length direction towards vacuum switch, and see that from front face side the form that laterally forms a line is configured in the top of vacuum interrupter, on the position relative panel, be formed with rectangular-shaped window with front part each electrical fuses, its transverse width is greater than the Breadth Maximum of transversely arranged electrical fuses, vertically width is greater than the diameter of electrical fuses, the back side of panel is equipped with the insulation board that clogs window, therefore, can improve the front part of electrical fuses and the withstand voltage properties between panel, the isolation distance of electrical fuses and panel can be shortened substantially, thereby the miniaturization of vacuum switch can be realized.
In addition, electrical fuses has the fuse striker of expression fusing, insulation board is transparent or semitransparent, therefore, under the situation of the vacuum switch of electrical fuses with subsidiary fuse striker, except that above-mentioned effect, can also penetrating window visually confirm blown fuse, the outstanding action of fuse striker, make the action of confirming electrical fuses become easy.
Claims (2)
1. vacuum switch; vacuum interrupter (3) with built-in fixed contact (4) and travelling contact (5); comprise a plurality of electrical fuses (18) that are electrically connected with each described fixed contact (4) side mutually of described vacuum interrupter (3); and front face is provided with the panel (25) of protection usefulness; it is characterized in that
Described each electrical fuses (18) sees that towards the fore-and-aft direction of vacuum switch and from front face side the form that laterally forms a line is configured in the top of described vacuum interrupter (3) with length direction,
On the position relative with the front part of described electrical fuses (18), described panel (25) has rectangular-shaped window (25a), its transverse width is greater than the Breadth Maximum of transversely arranged described electrical fuses (18), and vertically width is greater than the diameter of described electrical fuses (18)
The insulation board (27) that clogs described window (25a) is installed at the back side of described panel (25).
2. vacuum switch as claimed in claim 1 is characterized in that, described electrical fuses (18) has the fuse striker (18a) of expression fusing, and described insulation board (27) is transparent or semitransparent.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009114613A JP2010263747A (en) | 2009-05-11 | 2009-05-11 | Vacuum switch |
| JP2009-114613 | 2009-05-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101887819A true CN101887819A (en) | 2010-11-17 |
| CN101887819B CN101887819B (en) | 2013-01-16 |
Family
ID=43073677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101605640A Active CN101887819B (en) | 2009-05-11 | 2009-07-28 | Vacuum switch |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2010263747A (en) |
| KR (1) | KR101024781B1 (en) |
| CN (1) | CN101887819B (en) |
| TW (1) | TWI404100B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730287A (en) * | 2013-12-20 | 2014-04-16 | 吴江市东泰电力特种开关有限公司 | Vacuum power switch |
| CN105845492A (en) * | 2016-06-06 | 2016-08-10 | 广西南宁德通网络有限公司 | Vacuum circuit-breaking equipment |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8791362B2 (en) * | 2012-05-24 | 2014-07-29 | General Electric Company | Shutter door assembly for an electrical panel |
| KR200484887Y1 (en) * | 2013-09-16 | 2017-11-03 | 엘에스산전 주식회사 | A combination type vaacuum contactor |
| KR200487085Y1 (en) * | 2016-12-29 | 2018-08-29 | 엘에스산전 주식회사 | Fuse case for vacuum contactor |
| JP6692513B1 (en) | 2019-11-07 | 2020-05-13 | 三菱電機株式会社 | Vacuum switch and switchgear |
| KR102457966B1 (en) * | 2020-10-05 | 2022-10-26 | 신성산전주식회사 | Driving apparatus for load breaker switch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61237321A (en) * | 1985-04-12 | 1986-10-22 | 株式会社東芝 | Insulation case |
| JPS6369331U (en) * | 1986-10-23 | 1988-05-10 | ||
| CN1328213A (en) * | 2000-06-06 | 2001-12-26 | 德克萨斯仪器股份有限公司 | Protector for closed compressor and closed compressor using the same |
| US20070012894A1 (en) * | 2005-07-18 | 2007-01-18 | G-Light Display Corp. | Vacuum gate valve |
| JP2007318980A (en) * | 2006-04-28 | 2007-12-06 | Fuji Electric Systems Co Ltd | Drawer type device and panel board |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5718810U (en) * | 1980-07-04 | 1982-01-30 | ||
| JPS58190206A (en) * | 1982-04-27 | 1983-11-07 | 神鋼電機株式会社 | Drawer type high voltage electromagnetic contactor |
| JPS59129324U (en) * | 1983-02-10 | 1984-08-30 | 株式会社東芝 | closed switchboard |
| JPS6012205U (en) * | 1983-07-04 | 1985-01-28 | 三菱電機株式会社 | Disconnect type unit |
| JP3039032B2 (en) * | 1991-09-10 | 2000-05-08 | 富士電機株式会社 | Vacuum electromagnetic contactor |
| JP2895702B2 (en) * | 1993-01-11 | 1999-05-24 | 三菱電機株式会社 | Vacuum circuit breaker |
| JPH0946830A (en) * | 1995-07-24 | 1997-02-14 | Nissin Electric Co Ltd | Switchgear |
| JPH1141722A (en) | 1997-07-24 | 1999-02-12 | Mitsubishi Electric Corp | Switch |
| JP3744688B2 (en) * | 1998-05-22 | 2006-02-15 | 三菱電機株式会社 | Unit trolley |
| US7576957B2 (en) * | 2006-05-01 | 2009-08-18 | Eaton Corporation | Circuit interrupter including point-on-wave controller and voltage sensors |
| KR100857439B1 (en) | 2008-02-29 | 2008-09-08 | 한빛전기감리(주) | A power supplying apparatus |
-
2009
- 2009-05-11 JP JP2009114613A patent/JP2010263747A/en active Pending
- 2009-07-28 CN CN2009101605640A patent/CN101887819B/en active Active
- 2009-08-10 KR KR1020090073307A patent/KR101024781B1/en active IP Right Grant
- 2009-10-19 TW TW098135225A patent/TWI404100B/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61237321A (en) * | 1985-04-12 | 1986-10-22 | 株式会社東芝 | Insulation case |
| JPS6369331U (en) * | 1986-10-23 | 1988-05-10 | ||
| CN1328213A (en) * | 2000-06-06 | 2001-12-26 | 德克萨斯仪器股份有限公司 | Protector for closed compressor and closed compressor using the same |
| US20070012894A1 (en) * | 2005-07-18 | 2007-01-18 | G-Light Display Corp. | Vacuum gate valve |
| JP2007318980A (en) * | 2006-04-28 | 2007-12-06 | Fuji Electric Systems Co Ltd | Drawer type device and panel board |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730287A (en) * | 2013-12-20 | 2014-04-16 | 吴江市东泰电力特种开关有限公司 | Vacuum power switch |
| CN105845492A (en) * | 2016-06-06 | 2016-08-10 | 广西南宁德通网络有限公司 | Vacuum circuit-breaking equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI404100B (en) | 2013-08-01 |
| JP2010263747A (en) | 2010-11-18 |
| CN101887819B (en) | 2013-01-16 |
| KR101024781B1 (en) | 2011-03-24 |
| KR20100122040A (en) | 2010-11-19 |
| TW201041003A (en) | 2010-11-16 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |