CN203707634U - Fixed structure of heavy-current drawer of low-voltage draw-out type switch cabinet - Google Patents
Fixed structure of heavy-current drawer of low-voltage draw-out type switch cabinet Download PDFInfo
- Publication number
- CN203707634U CN203707634U CN201420028723.8U CN201420028723U CN203707634U CN 203707634 U CN203707634 U CN 203707634U CN 201420028723 U CN201420028723 U CN 201420028723U CN 203707634 U CN203707634 U CN 203707634U
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- CN
- China
- Prior art keywords
- binding post
- drawer
- bus
- fixed structure
- heavy
- 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 - Fee Related
Links
Abstract
The invention relates to a fixed structure of a heavy-current drawer of a low-voltage draw-out type switch cabinet. With the fixed structure, a short-circuit accident of a drawer with the current larger than 250A can be avoided. According to the scheme, a primary static contact terminal and a primary moving contact terminal of the original drawer are removed; a wire inlet binding post and a wire outlet binding post are used for enabling a power supply bus and a connecting bus to be fixedly connected; and binding post insulated covers are installed outside the wire inlet binding post and the wire outlet binding post. Because of removing of plug connection, a problem of poor contact is solved; and thus a short-circuit accident caused by poor contact of the primary contact terminal can be avoided, thereby achieving an objective of secure operation. When the drawer needs to be pulled out, the power of the power supply bus is cut and then the connecting bolt between the bus and the binding post is removed, so that the drawer can be pulled out for repairing and maintenance.
Description
Affiliated technical field
The utility model relates to the fixed structure form of the large electric current drawer of a kind of low voltage drawing-out switching carbinet, is particularly useful for the occasion use that drawer electric current is greater than 250A.
Background technology
At present, the drawer unit of known low voltage drawing-out switching carbinet is made up of circuit breaker and firm banking, connection bus, current transformer, connecting bolt, a fixed contact and the first-class parts of movable contact, and drawer unit can conveniently pull out.But general low voltage drawing-out switching carbinet is in the time that drawer electric current is greater than 250A, fixed contact and moving contact can generate heat, burn because of loose contact candle, then can make contact ambroin shell around burn carbonization, finally cause the ambroin shell of low-tension supply by carbonization to the accident that is short-circuited of short circuit between switch board housing or power supply, jeopardize the person and device security, can not ensure that the safety of low voltage drawing-out switching carbinet is normally moved.
Summary of the invention
The short circuit accident of easily sending out in order to overcome the large electric current drawer of low voltage drawing-out switching carbinet, the utility model provides a kind of fixed structure of drawer, can ensure the safe operation of switch cubicle, again can be in the situation that power source bus has a power failure, by drawer pull-out maintenance.
The utility model solves the technical scheme that its technical problem adopts: fixed contact of drawer and a moving contact are removed, use into and out of line binding post power source bus is fixedly connected with connection bus, into and out of line binding post outside, binding post insulating cover is installed.Removed plug connection, loose contact problem is met and is born and separate, and has reached the object of safe operation.In the time that needs drawer pulls out, power source bus is had a power failure, then the connecting bolt between bus and binding post is laid down, can pull out drawer and overhaul.
The beneficial effects of the utility model are, both can on former moveable drawer, transform, and also can in the time manufacturing low voltage drawing-out switching carbinet, directly transform, and only adopt bus, binding post and insulating cover thereof to replace a plug connector, simple in structure.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is the front view of the large electric current drawer fixing of low voltage drawing-out switching carbinet embodiment.
Fig. 3 is the I--I cutaway view of Fig. 2.
1. circuit breaker fixed base plates in figure, 2. circuit breaker, 3. circuit breaker set bolt, 4. inlet wire connection bus 1,5. power source bus, 6. connecting bolt, 7. outlet connection bus 1,8. current transformer, 9. inlet wire binding post, 10. inlet wire connection bus 2,11. outlet binding posts, plate washer after 12. drawers, 13. outlet connection bus 2,14. inlet wire binding post insulating covers, 15. inlet wire binding post insulating cover set bolts, 16. outlet binding post insulating covers, 17. outlet binding post insulating cover set bolt 18. drawer-bottom boards.
Embodiment
In Fig. 1, power source bus (5), inlet wire binding post (9), inlet wire connection bus 2 (10) and inlet wire connection bus 1 (4) are connected, and are attempted by the inlet wire side of circuit breaker (2).Outlet binding post (11), outlet connection bus 2 (13) and outlet connection bus 1 (7) are connected, be connected on the outgoing line side of circuit breaker (2), outlet connection bus 1 (7) is through the inside of current transformer (8).The selection of bus and binding post is carried out according to the selection specification of bus.
In embodiment illustrated in fig. 2, it is upper that circuit breaker fixed base plate (1) is fixed on drawer-bottom board (18), and circuit breaker (2) is fixed on circuit breaker fixed base plate (1) by circuit breaker set bolt (3).After inlet wire binding post insulating cover (14) is fixed on drawer by inlet wire binding post insulating cover set bolt (15), plate washer (12) is upper, and power source bus (5), inlet wire binding post (9), inlet wire connection bus 2 (10) and inlet wire connection bus 1 (4) are connected by connecting bolt (6).After outlet binding post insulating cover (16) is fixed on drawer by outlet binding post insulating cover set bolt (17), plate washer (12) is upper, and outlet binding post (11), outlet connection bus 2 (13) and outlet connection bus 1 (7) are connected by connecting bolt (6).
Claims (2)
1. the large electric current drawer fixing of low voltage drawing-out switching carbinet, use into and out of line binding post power source bus is fixedly connected with connection bus, it is characterized in that: with bolt by power source bus, connection bus be fixedly connected with into and out of line binding post, replace former drawer to use the plug that once dynamic and static contact carries out to connect, into and out of line binding post outside, binding post insulating cover is installed and is carried out insulating protection.
2. the large electric current drawer fixing of low voltage drawing-out switching carbinet according to claim 1, is characterized in that: in the time that needs drawer pulls out, power source bus is had a power failure, then the connecting bolt between bus and binding post is laid down, can pull out drawer and overhaul.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420028723.8U CN203707634U (en) | 2014-01-17 | 2014-01-17 | Fixed structure of heavy-current drawer of low-voltage draw-out type switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420028723.8U CN203707634U (en) | 2014-01-17 | 2014-01-17 | Fixed structure of heavy-current drawer of low-voltage draw-out type switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203707634U true CN203707634U (en) | 2014-07-09 |
Family
ID=51058016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420028723.8U Expired - Fee Related CN203707634U (en) | 2014-01-17 | 2014-01-17 | Fixed structure of heavy-current drawer of low-voltage draw-out type switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203707634U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116885611A (en) * | 2023-07-10 | 2023-10-13 | 南京永恒电器有限公司 | Extraction type low-voltage switch cabinet capable of preventing misoperation |
-
2014
- 2014-01-17 CN CN201420028723.8U patent/CN203707634U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116885611A (en) * | 2023-07-10 | 2023-10-13 | 南京永恒电器有限公司 | Extraction type low-voltage switch cabinet capable of preventing misoperation |
| CN116885611B (en) * | 2023-07-10 | 2024-03-19 | 南京永恒电器有限公司 | Extraction type low-voltage switch cabinet capable of preventing misoperation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20150117 |
|
| EXPY | Termination of patent right or utility model |