CN201812726U - Electrical contact for outdoor high-voltage alternating-current disconnector - Google Patents
Electrical contact for outdoor high-voltage alternating-current disconnector Download PDFInfo
- Publication number
- CN201812726U CN201812726U CN2010205171259U CN201020517125U CN201812726U CN 201812726 U CN201812726 U CN 201812726U CN 2010205171259 U CN2010205171259 U CN 2010205171259U CN 201020517125 U CN201020517125 U CN 201020517125U CN 201812726 U CN201812726 U CN 201812726U
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- Prior art keywords
- contact
- fingertip
- conductive arm
- stage clip
- electrical contact
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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.)
- Expired - Fee Related
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- 238000004049 embossing Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract description 14
- 238000007906 compression Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 4
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000004411 aluminium Substances 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000001131 transforming effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
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Abstract
The utility model discloses an electrical contact for an outdoor high-voltage alternating-current disconnector, which comprises a contact, contact fingers, compression springs, flexible connecting sheets, a right conductive arm, a contact finger seat, compression spring installation rods and a left conductive arm. The contact is arranged on the left conductive arm, the right conductive arm is connected with the contact finger seat, the contact fingers are respectively arranged on two sides of the contact finger seat, the flexible connecting sheets are respectively connected with the right conductive arm and the contact fingers, the compression spring installation rods respectively penetrate through the two contact fingers, the compression springs are arranged on the compression spring installation rods on the outer sides of the contact fingers, one end of each of the compression springs is positioned through the contact fingers, and the other ends of the compression springs are positioned through nuts arranged on the compression spring installation rods. Complete contact of the contact fingers and the contact is guaranteed by means of arranging the compression springs on the outer sides of the two contact fingers and compressing the two contact fingers inwards through compression spring force. Since the compression springs are arranged on the outer sides of the two contact fingers, shunting effect is eliminated, heat dissipation effect is better, the compression springs are not easy to generate heat to be in failure, seal contact is guaranteed and pressure of the compression spring can be adjusted through the nuts.
Description
Technical field
The utility model relates to the isolating switch technical field, more particularly, relates to a kind of outdoor high-voltage alternating current isolating switch and connects electrical contact.
Background technology
Isolating switch is the high voltage switchgear in the electrical network power transmission and transforming equipment, is use amount maximum in the electric power system, product that range of application is the widest, makes the isolating switch problem many for various reasons, and fault happens occasionally.Show according to State Grid Corporation of China's investigation, the operational reliability of the isolating switch of transforming without improvement of old-fashioned structure apart from existing electrical network high reliability require far apart, safe operation to electrical network affects greatly, and high isolating switch galvanic circle is overheated to be the thoroughly problem of solution of failing for a long time.According to present operating experience, the operating current of most of isolating switches generally can only be used about 60% of its rated operational current, if surpass 70% just may take place overheated.
Connecing electrical contact is a critical component of isolating switch, it directly bear circuit branch, close, the electric current in the circuit passes to the other end from an end, is made up of a plurality of parts, other parts generally all are fixedly connected, connecing electrical contact and then can not fix, must be movable, automatic deciliter of energy, so it has just become the weak link of whole galvanic circle, because the particularity of its present position and effect guarantees its reliably working, has just increased difficulty.
Present stage, the electrical contact (left and right contact) that connects that the manufacturer of outdoor isolation selects for use is broadly divided into following a few class:
1, old switch modified model: promptly be flexible coupling former terminal the increasing of fingertip that connects electrical contact, to strengthen its conductive capability, stage clip places between two fingertips, tension and compression spring shunting heating in being subjected to, the influence that elastic strength dies down gradually, in use left and right sides contact become loose contact, conduction is smooth thereby heating, influence switch and normally use.
2, the copper fingertip type of relying on oneself: promptly adopt new copper alloy fingertip, by the elasticity of self, (or adding a slice external pressure spring leaf) contacts with contact, thereby reach the purpose of conduction, though solved the problem that stage clip pressure dies down gradually, because of fingertip can't contact (fatal shortcoming can't overcome) fully with contact in the course of processing or because of self stress deformation, thereby heating, cause switch normally not use.
3, copper and aluminium mating type: promptly use copper alloy fingertip or (adding spring leaf) to be directly fixed on the aluminium alloy conductive arm, copper and aluminium still belong to a difficult problem in the world because of the greatly different difference of potential difference makes copper aluminium contact conduction, add and have the unsurmountable shortcoming of the copper of relying on oneself fingertip type contact, contact can very fast heating, makes switch normally to use.
The utility model content
In view of this, the utility model provides a kind of outdoor high-voltage alternating current isolating switch to connect electrical contact, with solve contact between contact and the fingertip bad, easily heating, the problem of stage clip inefficacy.
For achieving the above object, the utility model provides following technical scheme:
A kind of outdoor high-voltage alternating current isolating switch connects electrical contact, comprising: contact, fingertip, stage clip, soft in flakes, right conductive arm, fingertip seat, stage clip mounting rod and left conductive arm, it is characterized in that described contact is arranged on the described left conductive arm;
Described right conductive arm is connected with described fingertip seat;
Described fingertip is arranged at the both sides of described fingertip seat respectively;
Described softly link to each other with described right conductive arm and fingertip respectively in flakes;
Described stage clip mounting rod passes two fingertips respectively, and the stage clip mounting rod that is positioned at the described fingertip outside is provided with stage clip, and described stage clip one end is by described fingertip location, and the other end is by being arranged on the nut location on the described stage clip mounting rod.
Preferably, connect in the electrical contact at above-mentioned outdoor high-voltage alternating current isolating switch, described fingertip seat adopts embossing to fixedly connected with right conductive arm.
Preferably, connect in the electrical contact at above-mentioned outdoor high-voltage alternating current isolating switch, the middle part of described fingertip and contact contact site are provided with first groove.
Preferably, connect in the electrical contact at above-mentioned outdoor high-voltage alternating current isolating switch, described fingertip is the circular arc of evagination with a described soft end that is connected in flakes.
From above-mentioned technical scheme as can be seen, the utility model compresses two fingertips by stage clip power to the inside by stage clip being placed the outside of two fingertips, to guarantee that fingertip contacts fully with contact.The utility model is by placing stage clip in the outside of two fingertips, thereby do not have shunting action, and heat radiation is better, and stage clip is difficult for heating and lost efficacy, and guarantees closely contact, and by the adjustable seamless spring of nut pressure.And the fingertip end has and softly links to each other with conductive arm in flakes, makes conduction more abundant reliable.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The outdoor high-voltage alternating current isolating switch that Fig. 1 provides for the utility model embodiment connects the structural representation of electrical contact;
The structural representation of the fingertip that Fig. 2 provides for the utility model embodiment;
Fig. 3 is the right view of Fig. 2.
Embodiment
The utility model discloses a kind of outdoor high-voltage alternating current isolating switch and connect electrical contact, with solve contact between contact and the fingertip bad, easily heating, the problem of extension spring inefficacy.
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 1-Fig. 3, the outdoor high-voltage alternating current isolating switch that Fig. 1 provides for the utility model embodiment connects the structural representation of electrical contact, the structural representation of the fingertip that Fig. 2 provides for the utility model embodiment, and Fig. 3 is the right view of Fig. 2.
Wherein, 1 is right conductive arm, and 2 is left conductive arm, and 3 is contact, and 4 is fingertip, and 5 is stage clip, and 6 is in flakes soft, and 7 is bolt, and 8 is the fingertip seat, and 41 is first groove, and 42 is circular arc.
The outdoor high-voltage alternating current isolating switch that the utility model provides connects electrical contact, comprising: contact 3, fingertip 4, stage clip 5, soft in flakes 6, right conductive arm 1, fingertip seat 8, stage clip mounting rod and left conductive arm 2.Wherein, contact 3 is arranged on the left conductive arm 2, and right conductive arm 1 is connected with described fingertip seat 8; Fingertip 4 is arranged at the both sides of described fingertip seat 8 respectively; Softly 6 link to each other with described right conductive arm 1 and fingertip 4 respectively in flakes; The stage clip mounting rod passes two fingertips 4 respectively, and the stage clip mounting rod that is positioned at described fingertip 4 outsides is provided with stage clip 5, and described stage clip 5 one ends are by described fingertip 4 location, and the other end is by being arranged on the nut location on the described stage clip mounting rod.Can adjust the thrust of 5 pairs of fingertips 4 of stage clip by the screw-in depth of adjusting nut.
The full loop (right conductive arm 1, left conductive arm 2, fingertip seat 8, contact 3 and fingertip 4) that the outdoor high-voltage alternating current isolating switch that the utility model provides connects electrical contact all adopts the T2 copper material, electroplating surfaces with tin or silver-plated processing have avoided copper aluminium potential difference excessive and influence the normal problem of using of switch.
In sum, the utility model compresses two fingertips 4 by stage clip power to the inside by stage clip 5 being placed the outside of two fingertips 4, to guarantee that fingertip contacts fully with contact.The utility model is by placing stage clip in the outside of two fingertips 4, thereby do not have shunting action, and heat radiation is better, and stage clip 5 is difficult for heating and lost efficacy, and guarantees closely contact, and by the adjustable seamless spring of nut pressure.And fingertip 4 ends have and softly link to each other with conductive arm in flakes, make conduction more abundant reliable.
Further in order to optimize technique scheme, fingertip seat 8 adopts embossing fixedly to contact with right conductive arm 1, and electric conductivity is good.Fingertip 4 middle parts and contact 3 contacts site are provided with first groove 41, divide the fashionable automatic cleaning action that plays at switch.
Further in order to optimize technique scheme, described fingertip 4 is the circular arc 42 of evagination with described soft 6 ends that are connected in flakes, and promptly the end of fingertip 4 is processed into circular arc.Can finish the left-right rotation of certain angle on fingertip seat 8, when the contact angle of contact 3 and fingertip seat 8 changed, fingertip 4 can rotate with the rotation of contact 3, accomplishes self-balancing all the time.Be that fingertip 4 can both contact fully with contact 3 all the time, also do not influence its electric conductivity at all.
Comprehensive above design feature, the utility model can thoroughly solve the problem that outdoor disconnector in use connects the electrical contact heating, thereby can ensure the normal operation of switch.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (4)
1. an outdoor high-voltage alternating current isolating switch connects electrical contact, comprise: contact (3), fingertip (4), stage clip (5), soft (6) in flakes, right conductive arm (1), fingertip seat (8), stage clip mounting rod and left conductive arm (2), it is characterized in that described contact (3) is arranged on the described left conductive arm (2);
Described right conductive arm (1) is connected with described fingertip seat (8);
Described fingertip (4) is arranged at the both sides of described fingertip seat (8) respectively;
Described soft (6) in flakes link to each other with described right conductive arm (1) and fingertip (4) respectively;
Described stage clip mounting rod passes two fingertips (4) respectively, and the stage clip mounting rod that is positioned at described fingertip (4) outside is provided with stage clip (5), and described stage clip (5) one ends are by described fingertip (4) location, and the other end is by being arranged on the nut location on the described stage clip mounting rod.
2. outdoor high-voltage alternating current isolating switch as claimed in claim 1 connects electrical contact, it is characterized in that, described fingertip seat (8) adopts embossing to fixedly connected with right conductive arm (1).
3. outdoor high-voltage alternating current isolating switch as claimed in claim 1 connects electrical contact, it is characterized in that, the middle part of described fingertip (4) and contact (3) contact site are provided with first groove.
4. outdoor high-voltage alternating current isolating switch as claimed in claim 1 connects electrical contact, it is characterized in that, the end that described fingertip (4) is connected with described soft (6) in flakes is the circular arc (42) of evagination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205171259U CN201812726U (en) | 2010-09-03 | 2010-09-03 | Electrical contact for outdoor high-voltage alternating-current disconnector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205171259U CN201812726U (en) | 2010-09-03 | 2010-09-03 | Electrical contact for outdoor high-voltage alternating-current disconnector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201812726U true CN201812726U (en) | 2011-04-27 |
Family
ID=43895665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205171259U Expired - Fee Related CN201812726U (en) | 2010-09-03 | 2010-09-03 | Electrical contact for outdoor high-voltage alternating-current disconnector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201812726U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105590762A (en) * | 2016-01-27 | 2016-05-18 | 山东泰开隔离开关有限公司 | Heavy-current plug-in type conductive contact used for outdoor high-voltage disconnecting switch |
| CN106531534A (en) * | 2016-12-30 | 2017-03-22 | 广州粤能电力科技开发有限公司 | Isolation switch |
| CN108155058A (en) * | 2016-12-05 | 2018-06-12 | 江苏宏达电气有限公司 | A kind of vacuum circuit breaker arc-chutes |
| CN112786340A (en) * | 2021-02-03 | 2021-05-11 | 国网山西省电力公司长治供电公司 | High-voltage outdoor isolating switch contact |
-
2010
- 2010-09-03 CN CN2010205171259U patent/CN201812726U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105590762A (en) * | 2016-01-27 | 2016-05-18 | 山东泰开隔离开关有限公司 | Heavy-current plug-in type conductive contact used for outdoor high-voltage disconnecting switch |
| CN108155058A (en) * | 2016-12-05 | 2018-06-12 | 江苏宏达电气有限公司 | A kind of vacuum circuit breaker arc-chutes |
| CN106531534A (en) * | 2016-12-30 | 2017-03-22 | 广州粤能电力科技开发有限公司 | Isolation switch |
| CN112786340A (en) * | 2021-02-03 | 2021-05-11 | 国网山西省电力公司长治供电公司 | High-voltage outdoor isolating switch contact |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20130903 |