CN201319344Y - Contact structure of high voltage direct current isolated switch - Google Patents
Contact structure of high voltage direct current isolated switch Download PDFInfo
- Publication number
- CN201319344Y CN201319344Y CNU2008202224609U CN200820222460U CN201319344Y CN 201319344 Y CN201319344 Y CN 201319344Y CN U2008202224609 U CNU2008202224609 U CN U2008202224609U CN 200820222460 U CN200820222460 U CN 200820222460U CN 201319344 Y CN201319344 Y CN 201319344Y
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- Prior art keywords
- contact
- arm
- direct current
- high voltage
- voltage direct
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- Expired - Lifetime
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Abstract
The utility model relates to the field of high voltage direct current switches, which discloses a contact structure of a high voltage direct current isolated switch. The contact structure of a high voltage direct current isolated switch comprises a contact and a contact base, which is characterized in that the contact is in rectangular shape, the contact base comprises a groove body with an outward opening and two U-shaped contact plates, wherein the two U-shaped contact plates are fixed on two groove arms of the groove body respectively, one U-shaped arm of each U-shaped contact plate is used as a fixing arm fixed with one groove arm, the other U-shaped arm of each U-shaped contact plate is a free arm, and two free arms of the two U-shaped contact plates clamp the contact.
Description
Technical field
The utility model relates to the high voltage direct current field of switches, relates in particular to a kind of structure of contact terminal of high voltage direct current isolating switch.
Background technology
In recent years, direct current transportation relies on the superiority development of self rapid, and the market demand of dc switch equipment also constantly enlarges.DC transmission system is different from DC transmission system to the requirement of isolating switch, requires the DC-isolation switch that the ability of stronger long-term through-current capability and tolerance short circuit current is arranged, and can not simply AC isolation switch be directly applied to DC transmission system.Therefore, in order to satisfy isolating switch when the long-time bearing operating current, heating is normal; By fault currents such as short circuit currents the time, thermal effect and stress effect that the galvanic circle can the jam-tolerant electric current produces, and remain on normal service position; Need improve the ability of long-term through-current capability of high voltage direct current isolating switch and tolerance short circuit current.
Summary of the invention
The purpose of this utility model is to provide a kind of structure of contact terminal of high voltage direct current isolating switch, and it can improve the ability of long-term through-current capability of high voltage direct current isolating switch and tolerance short circuit current.
In order to achieve the above object, the technical solution of the utility model is achieved in that a kind of structure of contact terminal of high voltage direct current isolating switch, comprise contact and contact base, it is characterized in that, described contact is a cuboid, described contact base comprises the outside cell body of opening and is separately fixed at two U type contacts on two groove arms of cell body, a U type arm of each U type contact is fixed as fixed arm and a groove arm, another U type arm is a free arm, two free arm clamping contacts of two U type contacts.
Further characteristics of the present utility model are:
The opening part of described U type contact is provided with a spring.
Described groove arm stretches in the opening of U type contact, is connected with the fixed arm of U type contact.
Described contact is laminated fixedly by the polylith touch panel and forms.
Contact base of the present utility model comprises the outside cell body of opening and is separately fixed at two U type contacts on two groove arms of cell body, contact is a cuboid, the opening part of U type contact is provided with a spring again, improves the contact area and the clamping force of contact, can improve through-current capability; Two U type contacts fixing on two groove arms of cell body, when being short-circuited, the electric power that short circuit current produces is outwards opened two U type contacts self, can further improve the clamping force to moving contact.Therefore, structure of contact terminal of the present utility model more is applicable to the high voltage direct current isolating switch.
Description of drawings
Fig. 1 is the 63KV high voltage direct current isolating switch schematic diagram with utility model structure of contact terminal;
Fig. 2 is a utility model structure of contact terminal schematic diagram.
Embodiment
With reference to Fig. 1, the underframe 1 of 63KV high voltage direct current isolating switch is arranged with operating mechanism 9, be fixed with 2, two bearing pedestals 2 of two bearing pedestals on the underframe 1 and be provided with two post insulators 3,3 rotations of two post insulators of operating mechanism 9 actuatings simultaneously realize closing a floodgate or separating brake.A post insulator 3 is connected 5 by outlet seat 4 with first conducting rod, and another post insulator 3 is connected 8 by outlet seat 4 with second conducting rod.First conducting rod, 5 terminations welding cuboid contact 6, rectangle contact contact 6 is laminated by bolt by the polylith touch panel and forms, second conducting rod, 8 terminations welding contact base 7.
With reference to Fig. 2, contact base 7 comprises the outside cell body of opening 703 and is separately fixed at two U type contacts 701 on two groove arms of cell body 703, a U type arm of a U type contact 701 is as fixed arm, the groove arm stretches in the opening of U type contact 701 and is connected with the fixed arm of U type contact 701, another U type arm is a free arm, two free arm clamping contacts 6 of two U type contacts 701.The opening part of U type contact 703 is provided with a spring 702, prevents that U type contact 703 is to the internal strain of U type opening.Spring 702 can be fixed on two arms or one of them arm of U type contact 703.
Claims (4)
1, a kind of structure of contact terminal of high voltage direct current isolating switch, comprise contact and contact base, it is characterized in that, described contact is a cuboid, described contact base comprises the outside cell body of opening and is separately fixed at two U type contacts on two groove arms of cell body, a U type arm of each U type contact is fixed as fixed arm and a groove arm, and another U type arm is a free arm, two free arm clamping contacts of two U type contacts.
2, the structure of contact terminal of a kind of high voltage direct current isolating switch according to claim 1 is characterized in that, the opening part of described U type contact is provided with a spring.
3, the structure of contact terminal of a kind of high voltage direct current isolating switch according to claim 1 is characterized in that, described groove arm stretches in the opening of U type contact, is connected with the fixed arm of U type contact.
4, the structure of contact terminal of a kind of high voltage direct current isolating switch according to claim 1 is characterized in that, described contact is laminated fixedly by the polylith touch panel and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202224609U CN201319344Y (en) | 2008-11-14 | 2008-11-14 | Contact structure of high voltage direct current isolated switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202224609U CN201319344Y (en) | 2008-11-14 | 2008-11-14 | Contact structure of high voltage direct current isolated switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201319344Y true CN201319344Y (en) | 2009-09-30 |
Family
ID=41198106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202224609U Expired - Lifetime CN201319344Y (en) | 2008-11-14 | 2008-11-14 | Contact structure of high voltage direct current isolated switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201319344Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109074972A (en) * | 2016-04-20 | 2018-12-21 | 通用电器技术有限公司 | HVDC disconnecting switch |
-
2008
- 2008-11-14 CN CNU2008202224609U patent/CN201319344Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109074972A (en) * | 2016-04-20 | 2018-12-21 | 通用电器技术有限公司 | HVDC disconnecting switch |
| CN109074972B (en) * | 2016-04-20 | 2019-12-27 | 通用电器技术有限公司 | HVDC disconnecting switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090930 |