CN2879373Y - No-excitation double-row contact strip-type tapped switch - Google Patents
No-excitation double-row contact strip-type tapped switch Download PDFInfo
- Publication number
- CN2879373Y CN2879373Y CN 200620097241 CN200620097241U CN2879373Y CN 2879373 Y CN2879373 Y CN 2879373Y CN 200620097241 CN200620097241 CN 200620097241 CN 200620097241 U CN200620097241 U CN 200620097241U CN 2879373 Y CN2879373 Y CN 2879373Y
- Authority
- CN
- China
- Prior art keywords
- contact
- insulator
- moving contact
- excitation
- biserial
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to a long-shaped switch of off-circuit double-row contact for transformer, including an insulator, upper and lower steadier connecting with the insulator, two drive screws mounted on the upper and lower steadier matching with nuts of two movable contact assemblys, mounting two rows of static contacts side by side along axial direction of the drive screw on the insulator, bridging movable contacts of the movable contact assembly between two static contacts,which is characterized in apporaching centre lines of two nuts connecting with movable contact assemblys to form a double intro-eccentered nut structure. Useful effects of the utility model are: 1. shunting switch by long-shaped structure with small radical size, tightly structure, further reducing radical size of the long-shaped switch by double eccentered nut structure suit for transformer with smaller internal radical space; 2. large contact surface between static contacts and movable contacts, so having high reliability and great amperage of load.
Description
Technical field
The utility model relates to a kind of no excitation biserial contact strip-shape tap switch that is used for transformer.
Background technology
A large amount of strip-shape tap switchs that adopt in the off circuit tap changer that existing transformer uses, strip-shape tap switch mainly by insulator, go up undersetting, drive screw, moving contact component and constitute with the fixed contact of moving contact phase configuration, moving contact component is provided with swivel nut, with the drive screw phase configuration, drive moving contact component and move up and down.Be the magnitude of current or the increase switching function that increases shunting switch, employing has the strip-shape tap switch of the parallel contact arranged side by side of two rows, this biserial contact bar switch includes two row fixed contact, two moving contact components and two drive screws, and wherein each moving contact component is equipped with parallel with the two respectively drive screw phase configuration of a swivel nut.The certain spacing because two row's fixed contacts need be separated by, and the central lines of the center of swivel nut and fixed contact, so just make the radially volume of switch movable contact transmission mechanism become big, this not only need push installing space in transformer, and can bring the reduction of unfailing performance and the raising of manufacturing cost.
Summary of the invention
Technical problem to be solved in the utility model is the deficiency that exists at above-mentioned prior art and provides that a kind of radial dimension is little, the no excitation biserial contact strip-shape tap switch of compact conformation.
The utility model is that the technical scheme that problem adopted of the above-mentioned proposition of solution is as follows: include insulator 1, with insulator link on, undersetting 2,3, on, be installed on two drive screws 4 on the undersetting, two drive screws respectively with swivel nut 7 phase configuration of two moving contact components 5, axially be set side by side with separately fixed contacts 6 of two rows at insulator upper edge drive screw, moving contact cross-over connection in the moving contact component is between two fixed contacts, its difference is that two swivel nuts, 7 center lines that described and moving contact component link are close mutually, constitutes inwardly eccentric two eccentric screw bushing structure.
Press such scheme, described insulator 1 is strip and block; Described fixed contact 6 rear ends and binding post 10 link, the rectangular bulk of fixed contact; Described moving contact component comprises the supporter 14 in draw-in groove cross section, and a side of supporter connects firmly the swivel nut 7 of inside off-centre, and the draw-in groove both sides of supporter are provided with and the fixed contact clip type moving contact of cross-over connection mutually.
The beneficial effects of the utility model are: 1, adopt the strip structure shunting switch, radial dimension is little, compact conformation can make the radial dimension of bar switch further dwindle and two eccentric screw bushing structures are set, and can be suitable for using in the smaller transformer of inner radial space; 2, the contact-making surface of fixed contact and moving contact is big, so the magnitude of current of reliability height, load is big.
Description of drawings
Fig. 1 is the front view of an embodiment of the utility model.
Fig. 2 is the A-A cutaway view among Fig. 1.
Fig. 3 for for F among Fig. 1 to view.
Embodiment
Further specify embodiment of the present utility model below in conjunction with accompanying drawing, include the insulator 1 of strip and block, upper and lower at insulator is connected with upper and lower bearing 2,3, parallelly on the last undersetting install two drive screws 4, wherein an end of a drive screw and switch operating mechanism 9 join, another root drive screw is connected with a joggle with it by gear pair 13, and two drive screws are rotated synchronously, and wherein the thread rotary orientation of a drive screw is opposite with another root; Swivel nut 7 phase configuration of drive screw and moving contact component 5, described moving contact component comprises the supporter 14 in draw-in groove cross section, and a side of supporter connects firmly mutually with swivel nut 7, and two swivel nut center lines are close mutually, be close with the longitudinal centre line of insulator, constitute inwardly eccentric two eccentric screw bushing structure; Can drive supporter by switch operating mechanism 9 rotation drive screws moves up and down, the draw-in groove both sides of supporter 14 are provided with and the adjacent two fixed contacts 6 clip type moving contact of cross-over connection mutually, described clip type moving contact is made of bearing pin 11, moving contact sheet 8 and return spring 12, correspondence is installed in the both sides of fixed contact, two one-tenth of corresponding clamping static contact are a pair of, in the moving contact component can inside and outside be provided with two pairs with fixed contact 6 corresponding configurations, make contact-making surface bigger, contact performance is better.The axial two rows fixed contacts 6 separately of installing side by side at insulator upper edge drive screw, fixed contact rear end and binding post 10 are linked into one, fixed contact passes insulator, by alignment pin 16 they and insulator are connected firmly, the rectangular bulk of fixed contact, with clip type moving contact phase configuration, vertically install six fixed contacts separately from top to bottom successively along insulator in the present embodiment, the clip type moving contact cross-over connection in the moving contact component is between two fixed contacts.In addition, also be installed on insulation cover 15 in the periphery of drive screw and fixed contact.
Claims (6)
1, a kind of no excitation biserial contact strip-shape tap switch, include insulator (1), with insulator link on, undersetting (2,3), on, be installed on two drive screws (4) on the undersetting, two drive screws respectively with swivel nut (7) phase configuration of two moving contact components (5), axially be set side by side with separately fixed contacts (6) of two rows at insulator upper edge drive screw, moving contact cross-over connection in the moving contact component is between two fixed contacts, it is characterized in that two swivel nuts (7) center line that described and moving contact component link is close mutually, constitute inwardly eccentric two eccentric screw bushing structure.
2, by the described no excitation biserial contact strip-shape tap switch of claim 1, it is characterized in that described insulator (1) is strip and block.
3, by claim 1 or 2 described no excitation biserial contact strip-shape tap switchs, it is characterized in that described fixed contact rear end and binding post (10) link, the rectangular bulk of fixed contact.
4, by claim 1 or 2 described no excitation biserial contact strip-shape tap switchs, it is characterized in that described moving contact component comprises the supporter (14) in draw-in groove cross section, one side of supporter connects firmly the swivel nut (7) of inside off-centre, and the draw-in groove both sides of supporter are provided with and the fixed contact clip type moving contact of cross-over connection mutually.
5, by the described no excitation biserial contact strip-shape tap switch of claim 4, it is characterized in that described clip type moving contact is made of bearing pin (11), moving contact sheet (8) and return spring (12), correspondence is installed in the both sides of fixed contact.
6, by the described no excitation biserial contact strip-shape tap switch of claim 4, it is characterized in that parallel two drive screws (4) of installing on the undersetting, wherein an end of a drive screw and switch operating mechanism (9) join, another root drive screw is connected with a joggle with it by gear pair (13), two drive screws are rotated synchronously, and wherein the thread rotary orientation of a drive screw is opposite with another root.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620097241 CN2879373Y (en) | 2006-06-15 | 2006-06-15 | No-excitation double-row contact strip-type tapped switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620097241 CN2879373Y (en) | 2006-06-15 | 2006-06-15 | No-excitation double-row contact strip-type tapped switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2879373Y true CN2879373Y (en) | 2007-03-14 |
Family
ID=37861793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620097241 Expired - Lifetime CN2879373Y (en) | 2006-06-15 | 2006-06-15 | No-excitation double-row contact strip-type tapped switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2879373Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2530693A1 (en) | 2011-05-31 | 2012-12-05 | ABB Technology Ltd | Tap changer |
-
2006
- 2006-06-15 CN CN 200620097241 patent/CN2879373Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2530693A1 (en) | 2011-05-31 | 2012-12-05 | ABB Technology Ltd | Tap changer |
| WO2012163907A1 (en) | 2011-05-31 | 2012-12-06 | Abb Technology Ltd | Tap changer |
| CN103563031A (en) * | 2011-05-31 | 2014-02-05 | Abb技术有限公司 | Tap changer |
| CN103563031B (en) * | 2011-05-31 | 2016-03-23 | Abb技术有限公司 | Tap change over switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101681730B (en) | Switching arrangement | |
| CN2879373Y (en) | No-excitation double-row contact strip-type tapped switch | |
| CN101540241A (en) | Gear and rack type isolated switch | |
| CN2879372Y (en) | No-excitation linear voltage-adjusting strip-type tapped switch | |
| CN1905094B (en) | Non-exciting reversing change-over voltage regulating strip-shape tap switch | |
| CN202363298U (en) | Contact system structure of low-voltage apparatus | |
| CN201163589Y (en) | Rack-and-pinion type isolation switch | |
| CN201956179U (en) | Non-excitation cage-shaped linear voltage-regulation tapping switch | |
| CN100530459C (en) | Excitation-free positive-negative voltage-regulation tap changer | |
| CN105826124B (en) | A kind of vacuum pressure regulating and capacitance regulating tap switch | |
| CN102243924B (en) | Off-circuit bar-type modulating capacity tap-changer | |
| CN201130595Y (en) | Non-excitation bar-type tapping switch | |
| CN201117522Y (en) | Seesaw switch | |
| CN200962373Y (en) | Main contact with high carrier current capability | |
| CN2773883Y (en) | Outlet seat assembly of high-voltage isolated switch | |
| CN1885453A (en) | Fixed contact of tapping selector of combined on-loading tapping switch | |
| CN2893898Y (en) | High voltage isolated switch contact assembly | |
| CN219959830U (en) | Explosion-proof illumination block terminal | |
| CN219017941U (en) | Heavy current direct-plug wiring terminal | |
| CN211604988U (en) | Three-key switch structure | |
| CN220691890U (en) | Multi-gear toggle switch | |
| CN2609163Y (en) | Plug-in small leakage circuiot breaker | |
| CN201829438U (en) | Static contact mechanism of circuit breaker | |
| CN2797868Y (en) | Fluorescent lamp holder easy to change its electronic ballast | |
| CN200969489Y (en) | Low voltage switch adapting base |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070314 |
|
| EXPY | Termination of patent right or utility model |