CN102184793A - Isolating switch - Google Patents
Isolating switch Download PDFInfo
- Publication number
- CN102184793A CN102184793A CN201110096447XA CN201110096447A CN102184793A CN 102184793 A CN102184793 A CN 102184793A CN 201110096447X A CN201110096447X A CN 201110096447XA CN 201110096447 A CN201110096447 A CN 201110096447A CN 102184793 A CN102184793 A CN 102184793A
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- Prior art keywords
- isolating switch
- contact
- moving contact
- arm
- closing position
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- 230000003068 static effect Effects 0.000 abstract description 7
- 238000002955 isolation Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The invention discloses a three-station isolating switch of a small self-operated type contact structure, comprising a wire inlet support, a wire outlet support, an electric connector, a first static contact, a conducting arm, a traction sleeve, a traction arm and a second static contact, wherein the electric connector is connected with the wire inlet support; the first static contact is connected with the wire outlet support; one end of the conducting arm is connected with the electric connector, and the other end of the conducting arm is connected with a moving contact; the traction sleeve is sheathed outside the conducting arm and the moving contact so as to lead the conducting arm and the moving contact to be capable of sliding in the traction sleeve; the traction arm drags the traction sleeve and rotates around the main shaft; the second static contact is positioned at a grounding position; the isolating switch has three stations, namely a closing position, a tripping position and the grounding position; and at the closing position, the moving contact and the first static contact are contacted; at the grounding position, the moving contact and the second static contact are contacted, while the tripping position is arranged between the closing position and the grounding position.
Description
Technical field
The present invention relates to a kind of power switch field, relate to a kind of isolating switch particularly, relate in particular to a kind of isolating switch that is used for high-tension switch cabinet.
Background technology
High voltage isolator is a kind of common and indispensable, linkage element with " suspension bridge function " in the electric power network, promptly with soon to its connection and separating effect, it has the effect of forming a connecting link in whole circuit.Fig. 1 shows a kind of high voltage isolator that often uses in the prior art, and as shown in Figure 1, high voltage isolator 100 generally includes end of incoming cables 110, leading-out terminal 120, isolation knife 130, end of incoming cables pole 140 and leading-out terminal pole 150.Utilize the rotation of isolation knife 130, isolating switch 100 conductings are so that be transferred to leading-out terminal 120 with electric current by end of incoming cables 110.Generally speaking, end of incoming cables 110, leading-out terminal 120 and isolation knife 130 are made by the good copper material of electric conductivity.
Good with contacting of isolation knife 130 in order to ensure end of incoming cables 110, traditional method is that isolation knife 130 adopts bracket formula double-pole structure.Fig. 2 shows the schematic diagram of the bracket formula double-pole structure that adopts in the conventional high-tension isolating switch, wherein Fig. 2 left side shows the front view of this structure, and the right side shows the end view of this structure.As shown in Figure 2, can not make that in order to ensure impacting switch breaks down in the huge electric power of rated current when breaking down with electrical network, need 110 add stage clip 160 the most nearby in isolation knife apart from the end of incoming cables in when assembling, borrow its elastic force that end of incoming cables 110 and isolation knife 130 are compressed.In like manner, also adopt similar approach to guarantee the flexible rotation of isolation knife 130, and take into account the thrust when connecting between the two with respect to leading-out terminal 120 in isolation knife 130 and leading-out terminal 120 electrical connections place.
In the manufacture process of traditional isolating switch especially assembling process, how to guarantee that " contact pressure " is a very important index, and often need manually to be adjusted.Therefore, when user installation was used isolating switch, the reset condition when isolating switch dispatches from the factory need change usually, if and if the user be installed do not have professional experiences, just cause isolating switch when operation, not reach normal design parameter, cause fault.
In addition, as shown in Figure 2, in traditional isolating switch, the contact arm of isolation knife is that the center of circle moves in a circle to reach and closes branch with the main shaft, in order to guarantee enough electrical distances, contact arm length is a definite value, make the initial distance of whole isolated switch very big like this, thereby it is bigger to make that whole switch takes up room in isolation place.And structure can only realize two stations of divide-shut brake position.
Therefore, desired providing a kind ofly is convenient to reliably to install and made that switch occupies less space and can reach the novel tri-station isolating switch of ground state can realize maintenance the time.
Summary of the invention
The present invention aims to provide a kind of isolating switch that can address the above problem.
According to an aspect of the present invention, provide a kind of isolating switch, having comprised: inlet wire bearing and outlet bearing; The electrical connector that links to each other with described inlet wire bearing; First fixed contact that links to each other with described outlet bearing; Conductive arm, an end links to each other with described electrical connector, and the other end is connected with moving contact; Traction casing is enclosed within described conductive arm and moving contact outside, so that described conductive arm and moving contact can slide in described traction casing; Draft arm draws so that be rotated around main shaft described traction casing; And second fixed contact that is in earthing position, wherein said isolating switch has closing position, separating brake position and earthing position, at described closing position place, described moving contact and described first fixed contact contact, at the earthing position place, described moving contact and described second fixed contact contact, and described separating brake position is between described closing position and described earthing position.
Alternatively, in isolating switch according to the present invention, at the closing position place, inlet wire bearing, conductive arm and outlet bearing point-blank, earthing position and closing position have 90 ° of angles, and earthing position and closing position have 45 ° of angles.
Alternatively, in isolating switch according to the present invention, moving contact has self-reliance concave spherical surface structure, and first and second fixed contacts have protruding spherical structure.
Alternatively, in isolating switch according to the present invention, draft arm comprises first that at one end links to each other with main shaft and the second portion that links to each other with traction casing at the other end, described second portion has two legs so that form the inside groove of described draft arm between described two legs, wherein when described draft arm draws the rotation of described conductive arm and moving contact, described conductive arm and moving contact slide in described traction casing so that slip in the inside groove of described draft arm or therefrom skid off.
Description of drawings
Referring now to accompanying drawing the present invention is described in more detail, wherein:
Fig. 1 shows a kind of high voltage isolator that often uses in the prior art;
Fig. 2 shows the installation diagram of the bracket formula double-pole structure that adopts in the conventional high-tension isolating switch;
Fig. 3-5 shows respectively according to the state diagram when combined floodgate, separating brake and the earthing position of the isolating switch of one embodiment of the present invention;
Fig. 6-8 shows the schematic diagram of the fixed contact that uses, moving contact, traction casing respectively in the isolating switch according to one embodiment of the present invention; And
Fig. 9 and Figure 10 show the front view and the vertical view of the draft arm that uses respectively in the isolating switch according to one embodiment of the present invention.
Embodiment
Come embodiments of the present invention are described below in conjunction with accompanying drawing.
Fig. 3 shows the schematic diagram according to the isolating switch 300 of one embodiment of the present invention, and in Fig. 3, isolating switch is in closing position.Isolating switch 300 comprises inlet wire bearing 310, moving contact 320, first fixed contact 330 and second fixed contact 335, conductive arm 340, electrical connector 350, traction casing 360, draft arm 370, outlet bearing 380 and main shaft 390.As shown in Figure 3, inlet wire bearing 310 links to each other with the circuit of isolating switch 300 switch of wanting respectively with outlet bearing 380.Conductive arm 340 1 ends link to each other with inlet wire bearing 310 by electrical connector 350, and the other end of conductive arm 340 cover links to each other with moving contact 320 thereon.Has first fixed contact 330 at outlet bearing 380 places.When being in closing position place shown in Figure 3, moving contact 320 inserts first fixed contact 330, thus conducting isolating switch 300.Moving contact 320 and conductive arm 340 outside moving contact 320 and conductive arm 340, be with traction casing 360, so that can slide in draft arm 370.Traction casing 360 is by draft arm 370 tractions, so that be rotated around main shaft 390.
Fig. 4 show be in the separating brake position, according to the schematic diagram of the isolating switch 300 of one embodiment of the present invention.As shown in Figure 4, when isolating switch was in the separating brake position, draft arm 370 had rotated 45 degree (with respect to closing position, can certainly be other angles) around main shaft 390.In this process, draft arm 370 can draw traction casing 360 when rotated, thereby makes conductive arm 340 and moving contact 320 also slide in traction casing 360 in the inside groove of draft arm 370, and is rotated around electrical connector 350.
Fig. 5 show be in earthing position, according to the schematic diagram of the isolating switch 300 of one embodiment of the present invention.As shown in Figure 5, when isolating switch was in earthing position, draft arm 370 continued to have rotated miter angle degree (with respect to earthing position, can certainly be other angles) around main shaft 390.In this process, draft arm 370 can draw traction casing 360 when rotated, thereby makes conductive arm and moving contact also slide so that skid off from the inside groove of draft arm 370 in traction casing 360, and is rotated around electrical connector 350.At the earthing position place, moving contact 320 inserts second fixed contact 335 at earthing position place, thereby moving contact 320 is fixed on second fixed contact, 335 places, to realize the reliable operation of isolating switch 300.
Though in the execution mode shown in Fig. 3-5, show in isolating switch 300, closing position is vertical mutually with earthing position, and the separating brake position is in the middle of closing position and earthing position.Yet in practice, these positions can be not limited to this, and closing position and earthing position can be not vertical mutually, and the separating brake position is between closing position and the earthing position and gets final product.So these are all within protection scope of the present invention.
According to an embodiment of the invention,, the designs of a kind of new fixed contact and moving contact are provided in order to overcome the disadvantage that conductive part site that traditional dynamic and static contact forms because of machining and assembly technology difference under external force contact.Fig. 6 and 7 shows the fixed contact that uses and the schematic diagram of moving contact respectively in the isolating switch according to one embodiment of the present invention.Shown in Fig. 6 and 7, fixed contact has protruding spherical structure, and moving contact has the concave spherical surface structure, the two can guarantee arbitrarily angled incision with the contact of " line contact " form when contact, and stressed in " dead point " position that fits like a glove, this can increase substantially the switch reliability.Generally speaking, fixed contact and moving contact have same material, to guarantee that the two is in the guiding in when contact with coincide.According to practice effect, utilize the design of this fixed contact and moving contact, the performance index of grounded circuit in the whole switch and major loop can be brought up to same level (and the index of traditional grounded circuit can only reach major loop half).Alternatively, as shown in Fig. 3-5, according to first fixed contact 330 of the isolating switch of one embodiment of the present invention and the design that second fixed contact 335 can adopt fixed contact shown in Figure 6, and moving contact 320 can adopt the design of moving contact shown in Figure 7.
Fig. 9 and Figure 10 show the front view and the vertical view of the draft arm that uses respectively in the isolating switch according to one embodiment of the present invention.As shown in the figure, draft arm comprises first 810 that at one end links to each other with main shaft 390 and the second portion 820 that links to each other with traction casing 360 at the other end, and second portion 820 has two legs so that link to each other with the shell of traction casing 360 respectively.And the part between two legs has formed the inside groove of draft arm, thereby so that at draft arm 370 by to traction casing 360 traction conductive arms and moving contact rotation the time, conductive arm and moving contact slide in traction casing 360 so that slip in the inside groove of draft arm 370 or therefrom skid off.
Utilization is according to design of the present invention, the moving contact of inner sliding type and traction casing under the drive of draft arm are that basic point is flexible and rotate at the inside groove of draft arm with the main shaft, this make draft arm can realize with a little angle and displacement closing-minute-function of ground connection three-station, the function that needs wide-angle, long contact arm transmission mechanism to finish traditional isolating switch realizes in less space.
Greatly improved the switches conductive reliability according to isolating switch of the present invention, according to test, country uses at High-Voltage Electrical Appliances quality supervision and test center the BE256 digital test system that three station high voltage isolators of present embodiment are carried out the electric property check, switch is flexible, harmless after operator under the switch fault state and ground cutter have all born the dynamic and thermal stability electric current of 31.5kA/80kA (peak value)/4S.Isolating switch according to the present invention has in addition effectively reduced switch overall dimension, has enlarged the suitability of this product.
It should be noted the foregoing description the present invention will be described rather than limit the invention, and those skilled in the art can design alternative embodiment under the situation of the scope that does not break away from claims.In the claims, any reference symbol between bracket should be configured to restriction to claim.Word " comprises " not to be got rid of existence and is not listed in element or step in the claim.Being positioned at word " " before the element or " one " does not get rid of and has a plurality of such elements.The present invention can realize by means of the hardware that includes some different elements and by means of the computer of suitably programming.In having enumerated the unit claim of some devices, several in these devices can be to come imbody by same hardware branch.Any order is not represented in the use of word first, second and C grade.Can be title with these word explanations.
Claims (5)
1. an isolating switch is characterized in that, comprising:
Inlet wire bearing (310) and outlet bearing (380);
The electrical connector (350) that links to each other with described inlet wire bearing (310);
First fixed contact (330) that links to each other with described outlet bearing (380);
Conductive arm (340), an end links to each other with described electrical connector (350), and the other end is connected with moving contact (320);
Traction casing (360) is in described conductive arm (340) and moving contact (320) outside, so that described conductive arm (340) and moving contact (320) can slide in described traction casing (360);
Draft arm (370) draws so that be rotated around main shaft (390) described traction casing (360); And
Be in second fixed contact (335) of earthing position,
Wherein said isolating switch has three stations of closing position, separating brake position and earthing position, at described closing position place, described moving contact (320) and described first fixed contact (330) contact, at the earthing position place, described moving contact (320) and described second fixed contact (335) contact, and described separating brake position is between described closing position and described earthing position.
2. isolating switch as claimed in claim 1 is characterized in that, at described closing position place, described inlet wire bearing (310), conductive arm (340) and outlet bearing (380) point-blank, described earthing position and described closing position have 90 ° of angles.
3. isolating switch as claimed in claim 2 is characterized in that, described earthing position and described closing position have 45 ° of angles.
4. as any the described isolating switch among the claim 1-3, it is characterized in that described moving contact (320) has concave spherical surface self-reliance structure, described first and second fixed contacts (335) have protruding spherical structure.
5. as any the described isolating switch among the claim 1-3, it is characterized in that, described draft arm (370) comprises first (810) that at one end links to each other with main shaft (390) and the second portion (820) that links to each other with traction casing (360) at the other end, described second portion (820) has two legs so that form the inside groove of described draft arm (370) between described two legs, wherein when described draft arm (370) draws the rotation of described conductive arm (340) and moving contact (320), described conductive arm (340) and moving contact (320) slide in described traction casing (360) so that slip in the inside groove of described draft arm (370) or therefrom skid off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110096447.XA CN102184793B (en) | 2011-04-21 | 2011-04-21 | Isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110096447.XA CN102184793B (en) | 2011-04-21 | 2011-04-21 | Isolating switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102184793A true CN102184793A (en) | 2011-09-14 |
| CN102184793B CN102184793B (en) | 2014-02-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110096447.XA Active CN102184793B (en) | 2011-04-21 | 2011-04-21 | Isolating switch |
Country Status (1)
| Country | Link |
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| CN (1) | CN102184793B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109712841A (en) * | 2018-09-05 | 2019-05-03 | 国网福建电力有限公司 | A kind of rectilinear disconnecting switch combined floodgate auxiliary device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08249987A (en) * | 1995-03-09 | 1996-09-27 | Nissin Electric Co Ltd | Three position switch |
| JPH09204858A (en) * | 1996-01-24 | 1997-08-05 | Togami Electric Mfg Co Ltd | Switch with built-in capacitor for sensing zero-phase voltage |
| CN1805093A (en) * | 2004-12-14 | 2006-07-19 | 弗里茨德雷希尔&佐讷电器工程装置有限公司 | Disconnecting switch with lineraly moving contact |
| CN101055813A (en) * | 2006-04-12 | 2007-10-17 | 阿雷瓦能源技术有限责任公司 | Three-position switch especially used for meddle voltage or high voltage switch device |
| JP4591871B2 (en) * | 2005-12-19 | 2010-12-01 | 株式会社高岳製作所 | High pressure switch |
-
2011
- 2011-04-21 CN CN201110096447.XA patent/CN102184793B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08249987A (en) * | 1995-03-09 | 1996-09-27 | Nissin Electric Co Ltd | Three position switch |
| JPH09204858A (en) * | 1996-01-24 | 1997-08-05 | Togami Electric Mfg Co Ltd | Switch with built-in capacitor for sensing zero-phase voltage |
| CN1805093A (en) * | 2004-12-14 | 2006-07-19 | 弗里茨德雷希尔&佐讷电器工程装置有限公司 | Disconnecting switch with lineraly moving contact |
| JP4591871B2 (en) * | 2005-12-19 | 2010-12-01 | 株式会社高岳製作所 | High pressure switch |
| CN101055813A (en) * | 2006-04-12 | 2007-10-17 | 阿雷瓦能源技术有限责任公司 | Three-position switch especially used for meddle voltage or high voltage switch device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109712841A (en) * | 2018-09-05 | 2019-05-03 | 国网福建电力有限公司 | A kind of rectilinear disconnecting switch combined floodgate auxiliary device |
| CN109712841B (en) * | 2018-09-05 | 2020-06-16 | 国网福建电力有限公司 | Rectilinear isolator combined floodgate auxiliary device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102184793B (en) | 2014-02-12 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HU YANG Free format text: FORMER OWNER: XI'AN XINRUI POWER EQUIPMENT CO., LTD. Effective date: 20140605 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 710075 XI'AN, SHAANXI PROVINCE TO: 710065 XI'AN, SHAANXI PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140605 Address after: Hu Jia group Gaoling County Luyuan Town Village 710065 Shaanxi city of Xi'an Province, the house of Lords Patentee after: Hu Yang Address before: 0910, room 710075, building B, pioneer Plaza, 48 hi tech Zone, hi tech Zone, Shaanxi, Xi'an Patentee before: Xi'an Xinrui Power Equipment Co., Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20190102 Address after: Room 102B South of Block C, Building 96 Xiangxing Road, Xiangxing Industrial Zone, Xiamen City, Fujian Province Patentee after: Fisette (Xiamen) Switch Co., Ltd. Address before: 710065 Hujia Formation, Yuanyuan Village, Luyuan Town, Gaoling County, Xi'an City, Shaanxi Province Patentee before: Hu Yang Effective date of registration: 20190102 Address after: Room 102B South of Block C, Building 96 Xiangxing Road, Xiangxing Industrial Zone, Xiamen City, Fujian Province Patentee after: Fisette (Xiamen) Switch Co., Ltd. Address before: 710065 Hujia Formation, Yuanyuan Village, Luyuan Town, Gaoling County, Xi'an City, Shaanxi Province Patentee before: Hu Yang |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200519 Address after: Room 102B South of Block C, Building 96 Xiangxing Road, Xiangxing Industrial Zone, Xiamen City, Fujian Province Co-patentee after: Shanghai Huanyang Electric Co., Ltd Patentee after: FEISAITE (XIAMEN) SWITCH Co.,Ltd. Address before: Room 102B South of Block C, Building 96 Xiangxing Road, Xiangxing Industrial Zone, Xiamen City, Fujian Province Patentee before: FEISAITE (XIAMEN) SWITCH Co.,Ltd. |
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| TR01 | Transfer of patent right |