CN104347306B - Static contact isolation switch - Google Patents
Static contact isolation switch Download PDFInfo
- Publication number
- CN104347306B CN104347306B CN201310323381.2A CN201310323381A CN104347306B CN 104347306 B CN104347306 B CN 104347306B CN 201310323381 A CN201310323381 A CN 201310323381A CN 104347306 B CN104347306 B CN 104347306B
- Authority
- CN
- China
- Prior art keywords
- fingertip
- row
- fixed contact
- flat spring
- isolation switch
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
- H01H1/38—Plug-and-socket contacts
- H01H1/385—Contact arrangements for high voltage gas blast circuit breakers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
- H01H1/44—Contacts characterised by the manner in which co-operating contacts engage by sliding with resilient mounting
-
- 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
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
Landscapes
- Elimination Of Static Electricity (AREA)
- Contacts (AREA)
Abstract
A kind of static contact isolation switch, comprise fixed contact pedestal, left fingertip row and right fingertip that multiple " б " font fingertip forms are side by side arranged by fingertip bolt and the opposing both sides, inside that are fixedly installed in fixed contact pedestal of fingertip pressing plate, arc ignition bar is fixedly installed on the fixed contact pedestal between left fingertip row and right fingertip row, and the circular arc portion that is fixed on two flat springs on fixed contact pedestal contacts with left fingertip row and the upper short one end of right fingertip row respectively. Static contact isolation switch provided by the invention, can meet the large capacity requirement of user to outdoor high-voltage isolating switch, improve dynamic current under rated current and the failure condition that bears of outdoor high-voltage isolating switch and the ability of heat-stable current, ensured contact reliability and the integral installation quality of outdoor high-voltage isolating switch.
Description
Technical field
The present invention relates to the static contact that a kind of high voltage isolator is used, especially a kind of self-reliance static contact isolation switch without steel spring and spring leaf.
Background technology
Outdoor high-voltage isolating switch is that power system is used maximum a kind of High-Voltage Electrical Appliances, and it and outdoor high voltage circuit breaker, outdoor high-voltage earthing switch form the main peripheral hardware primary equipment of transformer station. Along with the development of national grid, the raising of power system line voltage grade and current class, requires the rated current of voltage levels system equipment and bears fault current also progressively to increase. Current, the rated current of outdoor high-voltage isolating switch and the ability by short circuit current are also improving constantly. For meet user to outdoor high-voltage isolating switch large capacity requirement, need to design a kind of static contact isolation switch, improve dynamic current under rated current and the failure condition that bears of outdoor high-voltage isolating switch and the ability of heat-stable current.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of static contact isolation switch, can meet user to outdoor high-voltage isolating switch large capacity requirement, improve dynamic current under rated current and the failure condition that bears of outdoor high-voltage isolating switch and the ability of heat-stable current, ensured contact reliability and the integral installation quality of outdoor high-voltage isolating switch.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of static contact isolation switch, comprise fixed contact pedestal, left fingertip row and right fingertip that multiple " б " font fingertip forms are side by side arranged by fingertip bolt and the opposing both sides, inside that are fixedly installed in fixed contact pedestal of fingertip pressing plate, arc ignition bar is fixedly installed on the fixed contact pedestal between left fingertip row and right fingertip row, and the circular arc portion that is fixed on two flat springs on fixed contact pedestal contacts with left fingertip row and the upper short one end of right fingertip row respectively.
Arc ignition bar is " L " font, and the termination of the long end of arc ignition bar is round end, and short end is fixedly mounted on fixed contact pedestal by arc ignition bar bolt.
The side view of flat spring is " J " font, and the straight sheet of flat spring is fixedly mounted on fixed contact pedestal by flat spring bolt and flat spring pressing plate, offers many rimas on the circular arc portion of flat spring.
Rimal quantity is 3.
Flat spring is beryllium-bronze flat spring.
Static contact isolation switch provided by the invention, beneficial effect is as follows:
1, existing static contact isolation switch steel spring and spring leaf used have been cancelled, the circular arc portion of flat spring contacts with left fingertip row and the upper short one end of right fingertip row respectively, the elastic force having by himself keeps certain pressure to left and right fingertip row, utilize the self-closing power of fingertip itself and the elastic force of flat spring, both can ensure the pressure of contact, in use steel spring and spring leaf get rusty and the contact pressure that causes declines, the insecure problem of contact also can to avoid outdoor products. And structure of contact terminal of the present invention is because the special shape of its fingertip makes self to produce self-closing power, ensure the needed normal pressure of contact, thereby improved the conductive capability of contact, form again two conducting systems. The rated current maximum of this contact can reach 4000A. Can meet user to outdoor high-voltage isolating switch large capacity requirement, improve dynamic current under rated current and the failure condition that bears of outdoor high-voltage isolating switch and the ability of heat-stable current, ensured contact reliability and the integral installation quality of outdoor high-voltage isolating switch.
2, the design of arc ignition bar may be remaining to system in the time that isolating switch moving contact and static contact are opened inductive drop, capacitance current etc. carry out striking, thereby have reduced the scaling loss of dynamic/static contact.
3, simple in structure, form conducting system of the present invention by left fingertip row, right fingertip row, fingertip bolt, fingertip pressing plate, flat spring pressing plate, flat spring bolt and fixed contact pedestal. Arc ignition bar is connected with fixed contact pedestal by arc ignition bar bolt, the arc ignition system of composition isolating switch; Manufacturing process performance is good, can effectively reduce manufacturing cost.
4, on flat spring, the design of tiny opening makes flat spring ensure left fingertip to arrange the pressure of arranging each fingertip with right fingertip in the time of work.
5, flat spring adopts beryllium-bronze sheet to make, and has guaranteed certain elastic force and good electric conductivity.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the A-A of Fig. 1 of the present invention is to cutaway view;
Fig. 3 is the schematic diagram of fingertip of the present invention;
Fig. 4 is the right view of Fig. 3 of the present invention;
Fig. 5 is the schematic diagram of arc ignition bar of the present invention;
Fig. 6 is the schematic diagram of flat spring of the present invention;
Fig. 7 is the top view of Fig. 6 of the present invention;
Fig. 8 is work schematic diagram of the present invention, and now moving contact does not insert static contact;
Fig. 9 is work schematic diagram of the present invention, and now moving contact inserts static contact.
Detailed description of the invention
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of static contact isolation switch of bag of the present invention, comprise fixed contact pedestal 1, the left fingertip row 8 that multiple " б " font fingertip 7 forms side by side and right fingertip row 12 are by fingertip bolt 2 and the opposing both sides, inside that are fixedly installed in fixed contact pedestal 1 of fingertip pressing plate 3, arc ignition bar 9 is fixedly installed on the fixed contact pedestal 1 between left fingertip row 8 and right fingertip row 12, and the circular arc portion 13 that is fixed on two flat springs 6 on fixed contact pedestal 1 contacts with one end 14 short on left fingertip row 8 and right fingertip row 12 respectively.
As shown in Figure 5, arc ignition bar 9 is " L " font, and the termination of the long end 16 of arc ignition bar 9 is round end, and short end 16 is fixedly mounted on fixed contact pedestal 1 by arc ignition bar bolt 10.
As shown in Figure 6 and Figure 7, the side view of flat spring 6 is " J " font, the straight sheet 18 of flat spring 6 is fixedly mounted on fixed contact pedestal 1 by flat spring bolt 5 and flat spring pressing plate 4, on the circular arc portion 13 of flat spring 6, offer 3 rimas 17, make flat spring 6 guarantee in the time of work arrange the pressure of 12 each fingertips to left fingertip row 8 and right fingertip.
Flat spring 6 is beryllium-bronze flat spring.
As shown in Figure 8 and Figure 9, the situation that the moving contact 11 of high voltage isolator inserts fixed contact pedestal 1 is that level is inserted to duty of the present invention, and first contact is arc ignition bar 9, reaches the assigned address of combined floodgate after moving forward. When high voltage isolator separating brake, moving contact 11 exits fixed contact pedestal 1 in the other direction, finally leaves arc ignition bar 9. The arc ignition bar 9 of arc ignition system is, in the time that the moving contact 11 of isolating switch is opened with fixed contact pedestal 1, remaining inductive drop, the capacitance current etc. of system possibility carried out to striking, thereby has reduced the scaling loss of dynamic/static contact. (generally this voltage and current is all very little).
Claims (5)
1. a static contact isolation switch, comprise fixed contact pedestal (1), it is characterized in that: the left fingertip row (8) that multiple " б " font fingertip (7) forms side by side and right fingertip row (12) are by fingertip bolt (2) and the opposing both sides, inside that are fixedly installed in fixed contact pedestal (1) of fingertip pressing plate (3), arc ignition bar (9) is fixedly installed on the fixed contact pedestal (1) between left fingertip row (8) and right fingertip row (12), the circular arc portion (13) that is fixed on two flat springs (6) on fixed contact pedestal (1) contacts with left fingertip row (8) and the upper short one end (14) of right fingertip row (12) respectively,
What moving contact (11) insertion fixed contact pedestal (1) first contacted is arc ignition bar (9).
2. static contact isolation switch according to claim 1, it is characterized in that: arc ignition bar (9) is " L " font, the termination of the long end (16) of arc ignition bar (9) is round end, and short end (15) is fixedly mounted on fixed contact pedestal (1) by arc ignition bar bolt (10).
3. static contact isolation switch according to claim 1 and 2, it is characterized in that: the side view of flat spring (6) is " J " font, it is upper that the straight sheet (18) of flat spring (6) is fixedly mounted on fixed contact pedestal (1) by flat spring bolt (5) and flat spring pressing plate (4), on the circular arc portion (13) of flat spring (6), offers many rimas (17).
4. static contact isolation switch according to claim 3, is characterized in that: the quantity of rima (17) is 3.
5. static contact isolation switch according to claim 1 and 2, is characterized in that: flat spring (6) is beryllium-bronze flat spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310323381.2A CN104347306B (en) | 2013-07-30 | 2013-07-30 | Static contact isolation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310323381.2A CN104347306B (en) | 2013-07-30 | 2013-07-30 | Static contact isolation switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104347306A CN104347306A (en) | 2015-02-11 |
| CN104347306B true CN104347306B (en) | 2016-05-04 |
Family
ID=52502708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310323381.2A Active CN104347306B (en) | 2013-07-30 | 2013-07-30 | Static contact isolation switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104347306B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023793B (en) * | 2015-06-26 | 2017-10-31 | 中国西电电气股份有限公司 | A kind of conductive structure of extra-high voltage direct-current disconnecting switch |
| CN113223892A (en) * | 2021-05-25 | 2021-08-06 | 上海电器科学研究所（集团）有限公司 | Quick vacuum arc control device that does not have spring |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2572539Y (en) * | 2002-09-28 | 2003-09-10 | 杜乐田 | Outdoor high voltage isolating switch |
| CN2588515Y (en) * | 2002-11-23 | 2003-11-26 | 阎淼江 | Contact for high-voltage isolation switch |
| CN201307549Y (en) * | 2008-10-22 | 2009-09-09 | 西宁供电公司 | Rotary type isolating switch fixed contact |
| CN203339044U (en) * | 2013-07-30 | 2013-12-11 | 乐星湖开电气（湖北）有限公司 | Static contact of disconnecting switch |
-
2013
- 2013-07-30 CN CN201310323381.2A patent/CN104347306B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2572539Y (en) * | 2002-09-28 | 2003-09-10 | 杜乐田 | Outdoor high voltage isolating switch |
| CN2588515Y (en) * | 2002-11-23 | 2003-11-26 | 阎淼江 | Contact for high-voltage isolation switch |
| CN201307549Y (en) * | 2008-10-22 | 2009-09-09 | 西宁供电公司 | Rotary type isolating switch fixed contact |
| CN203339044U (en) * | 2013-07-30 | 2013-12-11 | 乐星湖开电气（湖北）有限公司 | Static contact of disconnecting switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104347306A (en) | 2015-02-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 443004 No. 100 Tan Tan Road, Point Military Area, Yichang, Hubei Applicant after: Hubei Hukai Switch Electric Co., Ltd. Address before: 443004 No. 100 Tan Tan Road, Point Military Area, Yichang, Hubei Applicant before: Happy lake open electric (Hubei) Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190813 Address after: 238300 Wuwei Economic Development Zone Chengdong Park, Wuhu City, Anhui Province Patentee after: Angao Electric Co., Ltd. Address before: 443004 No. 100 Tan Tan Road, Point Military Area, Yichang, Hubei Patentee before: Hubei Hukai Switch Electric Co., Ltd. |