CN203895384U - Surface contact plug-in type breaker - Google Patents
Surface contact plug-in type breaker Download PDFInfo
- Publication number
- CN203895384U CN203895384U CN201420216104.1U CN201420216104U CN203895384U CN 203895384 U CN203895384 U CN 203895384U CN 201420216104 U CN201420216104 U CN 201420216104U CN 203895384 U CN203895384 U CN 203895384U
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- CN
- China
- Prior art keywords
- plug
- socket
- breaker
- type
- hole
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a surface contact plug-in type breaker, and belongs to the technical field of circuit safety protection. The surface contact plug-in type breaker comprises a breaker body and a plug-in type mounting table. The breaker body also comprises a plug which is a planar structure. The plug is fixedly arranged on a wiring terminal of the breaker body and reliably contacted. The plug-in type mounting table comprises an insulation bench, a socket, a compaction bolt and a locking bolt. A socket of plug-in type back-panel wiring is an L-shaped bending structure. Through holes are processed on a horizontal part and a vertical part of the socket. An external surface of the vertical part of the socket is a contact surface of the plug. A head of the compaction bolt is arranged fixedly in the insulation bench. After the screw part of the compaction bolt passes through the through holes arranged on the insulation bench and the vertical part of the socket, the screw part is exposed for electrical connection of the breaker body and the plug-in type mounting table. A head part of the locking bolt is arranged fixedly in the insulation bench. After the screw part of the locking bolt passes through the insulation bench, the screw part is exposed for plug-in type connection with the breaker body. According to the plug-in type breaker provided by the utility model, security problems in the traditional plug-in type wiring structure caused by contact heating under heavy current are solved.
Description
Technical field
Utility model relates to a kind of circuit breaker, is specifically related to the plug in circuit breaker of a kind of contact, belongs to circuit safety resist technology field.
Background technology
Plug in circuit breaker is comprised of breaker body and two parts of plug-in type erecting bed, and breaker body is on the binding post of traditional breaker of plastic casing, to fill a plug; On plug-in type erecting bed, fill a socket, socket is connected with the terminals of erecting bed.When wiring, only the terminals of plug-in type erecting bed need be connected with wiring bus-row in circuit, and the plug of breaker body be inserted to the socket of erecting bed, and fixedly circuit breaker has just completed the wiring of circuit breaker.When circuit breaker maintenance and replacing, do not need to have a power failure and wiring, very easy to use.
Although adopt plug in type connection mode to bring great convenience to the maintain and replace of circuit breaker, but this is equivalent to a secondary separable contact to plugs and sockets, there is certain contact resistance, once contact resistance between plug and socket is excessive, cause larger heating, cause the spring deformation annealing that keeps in touch pressure, caloric value is further increased, so vicious circle, cause the connection between plugs and sockets unreliable, finally occur that circuit breaker damage even causes fire.The rated current of circuit breaker is larger, and the possibility going wrong is larger.Therefore plug in construction is in the breaker of plastic casing below 200A in rated current, is widely adopted.And in the breaker of plastic casing of 400A, 630A and 800A, using lessly, user often relatively worries.But plug-type mounting means brings great convenience really to maintenance and the replacing of circuit breaker.
In addition, along with the continuous expansion of electric power system capacity, the capacity of short circuit of system is in continuous increase, for the short circuit breaking capacity of its supporting breaker of plastic casing is also improving.When short circuit breaking capacity and short time withstand current are increased to certain limit, also require plug-in moulded case circuit breaker between plug and socket, can bear its large electric current when the short circuit breaking capacity compared with high and short time withstand current and unlikelyly burn out or scold out arcing.This is also that the contact reliability of plug in circuit breaker is had higher requirement.Visible, when the plug-in moulded case circuit breaker of traditional structure is used for larger electric current, there is some problems in its structure, in the circuit breaker of larger rated current, cannot adopt plug in circuit breaker structure.
Utility model content
In view of this, the utility model provides a kind of contact plug in circuit breaker, can solve that traditional plug in type connection structure exists because of safety issue that under large current conditions, circuit breaker contact heating causes.
A kind of contact plug in circuit breaker, comprise breaker body and plug-in type erecting bed, wherein, breaker body also comprises plug, clamp nut and locking nut, plug is planar structure, on plug, be processed with through hole, this through hole is used for through hold-down bolt, plug is fixedly mounted on the binding post of breaker body and reliably contacts with its maintenance, on breaker body, be processed with the through hole that runs through its thickness direction, the diameter of through hole is corresponding with clamp nut and locking nut with number, through hole is used for through hold-down bolt and clamping screw and clamp nut is set and locking nut, the lead to the hole site of clamp nut is set corresponding and coaxial with the through hole on plug,
Plug-in type erecting bed comprises insulating base, socket, screw, hold-down bolt and clamping screw, socket is the bending structure of L-type, in the horizontal and vertical part of socket, be all processed with through hole, on socket, the through hole of horizontal component is used for and external cabling, and the through hole of vertical component is used for through hold-down bolt; The outer surface of socket vertical component is the contact-making surface with plug, the horizontal component of socket passes insulating base and is fixed by screw along the thickness direction of insulating base, after the through hole of the screw portion of hold-down bolt through vertical component on insulating base and socket, expose, the head of hold-down bolt is fixed on insulating base inside; The screw portion of clamping screw exposes through after circuit breaker insulating base, and the head of clamping screw is fixed on insulating base inside;
The L-type bending structure of socket is for wiring after plate, and during other connection types, socket adopts slab construction;
Further, plug and socket all adopt fine copper row and contact surface silver-plated;
Further, in the horizontal direction of socket, leave 0.5 to 3mm free gap, prevent that the plug of each utmost point of circuit breaker or socket from can not normally compress because thickness mismachining tolerance makes copper bar, thereby cause contact-making surface can not realize the conduction property of face Contact Effect circuit breaker;
Further, one end of locking nut and clamp nut is metal material, and the other end is the insulating material with flat recess;
Operation principle: locking nut and clamping screw are for the locking of breaker body and plug-in type erecting bed, and clamp nut and hold-down bolt are for the plug on breaker body and the compression of the socket on plug-in type erecting bed; During use, clamping screw on plug-in type erecting bed and hold-down bolt insert respectively the through hole on breaker body and on plug, now fit mutually in the surface of plug and socket, in the through hole of breaker body rear end face, screw in respectively locking nut and clamp nut, complete circuit breaker and be reliably connected with plug-in type erecting bed.
Beneficial effect:
1, the plug on the utility model breaker body and the socket part on plug-in type erecting bed are all designed to planar structure, when breaker body and plug-in type erecting bed are installed, rely on the plane of plug and socket to contact conducting, therefore can bear compared with large electric current and unlikelyly burn out or scold out arcing, improve the contact reliability of plug in circuit breaker.
2, plug and socket of the present utility model all adopt fine copper row and contact plane silver-plated, can reduce contact resistance, improve the dependability of circuit breaker.
3, the form that the utility model adopts clamp nut and locking nut is installed fixing to breaker body and plug-in type erecting bed, can guarantee that plug and socket is realized reliably to contact; One end of nut is metal material, and the other end is the insulating material with flat recess, adopts insulating material to guarantee and the insulation of main circuit, to prevent that maintenance personal is electrically shocked when keeping in repair or change circuit breaker, has guaranteed the safety of using.
Accompanying drawing explanation
Fig. 1 is the integral installation structural representation of plug-in type erecting bed of the present utility model and breaker body;
Fig. 2 is the wiring construction schematic diagram on the utility model plug-in type erecting bed.
Wherein, 1-clamp nut, 2-locking nut, 3-plug, 4-insulating base, 5-clamping screw, 6-socket, 7-hold-down bolt, 8-screw, 9-breaker body.
Embodiment
Below in conjunction with the accompanying drawing embodiment that develops simultaneously, the utility model is described in detail.
As shown in Figure 1, a rated current is three utmost point breaker of plastic casing of 1250A or 1600A, breaker body 9 and plug-in type erecting bed, consists of;
6 plugs 3 of breaker body 9 three utmost points are all with fine copper row processing, contact-making surface is smooth and silver-plated, is processed with the through hole of 2 φ 11 on copper bar, and through hole is used for through hold-down bolt, 6 plug 3 plugs are fixedly mounted on the front end face of breaker body, and plug 3 keeps reliably contacting with binding post; On breaker body 9, be processed with the through hole that runs through its thickness direction, the diameter of through hole and number are corresponding with clamp nut 1 and locking nut 2, through hole is used for through hold-down bolt 7 and clamping screw 5 and clamp nut 1 is set and locking nut 2, the lead to the hole site of clamp nut 1 is set corresponding and coaxial with the through hole on copper bar, on breaker body 9, have 12 through holes and pass for hold-down bolt 7,4 through holes pass for clamping screw;
As shown in Figure 2, plug-in type erecting bed is comprised of plate shaped insulating base 4, socket 6, screw 8, hold-down bolt 7 and clamping screw 5, six sockets 6 all adopt fine copper row to be processed into the bending structure of L-type, in the horizontal and vertical part of socket 6, be all processed with the through hole of 2 φ 10.5, each socket 6 is fixed on insulating base 4 by the screw 8 of two M5, socket 6 can not rotate, but can move about 3mm by along continuous straight runs.
Two of horizontal component φ 10.5 through holes wiring position in erecting bed on socket 6, for the wiring of main circuit; The hold-down bolt 7 of two M8 is housed in two φ 10.5 through holes of vertical component, and the turret head of hold-down bolt 7 is embedded in the hexagonal hole of relevant position on insulating base 4, makes hold-down bolt 7 tighten Shi Buhui rotation.The screw portion of clamping screw 5 exposes through after insulating base 4, and the head of clamping screw 5 is fixed on insulating base 4 inside;
During use, in φ 11 through holes on the plug 3 of breaker body 9, be inserted in M8 hold-down bolt 7, while shifting breaker body 9 plane contact of plug 3 and socket 6 onto, clamp nut 1 is screwed into hold-down bolt 7, with straight screwdriver, clamp nut 1 is tightened, when 12 clamp nuts 1 are all tightened, can guarantee that the plug on breaker body is connected with the reliable of socket on plug-in type erecting bed, and then locking nut 2 is screwed into clamping screw 5, breaker body 9 and plug-in type erecting bed are fixed together reliably.
In sum, these are only preferred embodiment of the present utility model, be not intended to limit protection range of the present utility model.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (4)
1. a face contacts plug in circuit breaker, it is characterized in that, comprise: breaker body (9) and plug-in type erecting bed, wherein, breaker body (9) also comprises plug (3), clamp nut (1) and locking nut (2), plug (3) is planar structure, plug (3) is fixedly mounted on the front end face of breaker body (9) and is reliably connected with breaker connecting terminal, plug is processed with the through hole that runs through its thickness direction on (3), the diameter of through hole and number are corresponding with clamp nut (1), the lead to the hole site that clamp nut (1) is set is corresponding and coaxial with the through hole on plug (3),
Plug-in type erecting bed comprises insulating base (4), socket (6), screw, hold-down bolt (7) and clamping screw (5), socket (6), for being the bending structure of L-type during wiring after plate, is all processed with through hole in the horizontal and vertical part of socket (6); The outer surface of socket (6) vertical component is and the contact-making surface of plug (3) that the horizontal component of socket (6) passes insulating base (4) and fixed by screw along the thickness direction of insulating base (4); The head of hold-down bolt (7) is fixed on insulating base (4) inside, after the through hole of the screw portion of hold-down bolt (7) through insulating base (4) and the upper vertical component of socket (6), expose, the head of clamping screw (5) is fixed on insulating base (4) inside, and the screw portion of clamping screw (5) exposes through after insulating base (4).
2. as claimed in claim 1 contact plug in circuit breaker, is characterized in that, described plug (3) and socket (6) all adopt fine copper to arrange to make and contact surface silver-plated.
3. as claimed in claim 1 or 2 contact plug in circuit breaker, is characterized in that, in the horizontal direction of described socket (6), leaves 0.5 to 3mm free gap.
4. as claimed in claim 1 or 2 contact plug in circuit breaker, is characterized in that, one end of described locking nut (2) and clamp nut (1) is metal material, and the other end is the insulating material with flat recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420216104.1U CN203895384U (en) | 2014-04-29 | 2014-04-29 | Surface contact plug-in type breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420216104.1U CN203895384U (en) | 2014-04-29 | 2014-04-29 | Surface contact plug-in type breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203895384U true CN203895384U (en) | 2014-10-22 |
Family
ID=51721747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420216104.1U Withdrawn - After Issue CN203895384U (en) | 2014-04-29 | 2014-04-29 | Surface contact plug-in type breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203895384U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008929A (en) * | 2014-04-29 | 2014-08-27 | 常熟瑞特电气股份有限公司 | Surface contact plug-in type circuit breaker |
-
2014
- 2014-04-29 CN CN201420216104.1U patent/CN203895384U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008929A (en) * | 2014-04-29 | 2014-08-27 | 常熟瑞特电气股份有限公司 | Surface contact plug-in type circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141022 Effective date of abandoning: 20160831 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |