CN104008929B - A kind of face contact plug in circuit breaker - Google Patents
A kind of face contact plug in circuit breaker Download PDFInfo
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- CN104008929B CN104008929B CN201410178074.4A CN201410178074A CN104008929B CN 104008929 B CN104008929 B CN 104008929B CN 201410178074 A CN201410178074 A CN 201410178074A CN 104008929 B CN104008929 B CN 104008929B
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- plug
- socket
- insulating base
- hole
- breaker
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Abstract
The invention discloses the plug in circuit breaker of a kind of contact, belong to circuit safety resist technology field.Including breaker body and plug-in type erecting bed, breaker body also includes plug, and plug is planar structure, and plug is fixedly mounted on the binding post of breaker body and keeps reliable contacts with it；Plug-in type erecting bed includes insulating base, socket, hold-down bolt and clamping screw, after sheet insertion mode, the socket of wiring is the bending structure of L-type, through hole all it is machined with in the horizontal and vertical part of socket, the outer surface of socket vertical component is the contact surface with plug, the head of hold-down bolt is fixed on inside insulating base, and the screw portion of hold-down bolt exposes the electrical connection for breaker body Yu plug-in type erecting bed through on insulating base and socket after the through hole of vertical component；The head of clamping screw is fixed on inside insulating base, and the screw portion of clamping screw exposes after insulating base, fixing with plug-type for breaker body；The present invention can solve the problem that tradition plug in type connection structure exists because of breaker contacts heating and the safety issue that causes under big current conditions.
Description
Technical field
Invention relates to a kind of chopper, is specifically related to the plug in circuit breaker of a kind of contact, belongs to circuit peace
Full guard technical field.
Background technology
Plug in circuit breaker is made up of breaker body and two parts of plug-in type erecting bed, and breaker body is
The binding post of tradition breaker of plastic casing fills a plug；Plug-in type erecting bed fills a socket,
Socket is connected with the terminals of erecting bed.Only need to be by the terminals of plug-in type erecting bed and circuit when wiring
Middle wiring bus-row connects, and the plug of breaker body inserts the socket of erecting bed, and fixing chopper is just
Complete the wiring of chopper.It is not required to have a power failure and wiring when chopper maintenance and replacing, very easy to use.
Although using plug in type connection mode to change to the maintenance of chopper to bring great convenience, but this being to inserting
Connector is equivalent to a secondary separable contact, there is certain contact resistance, once between plug and socket
Contact resistance is excessive and causes bigger heating, causes the spring temper deformation keeping contact pressure, makes heating
Amount increases further, and such vicious cycle causes the connection between plugs and sockets unreliable, and final appearance is disconnected
Road device damages and even causes fire.The rated current of chopper is the biggest, and the probability gone wrong is the biggest.Cause
This plug in construction, in the breaker of plastic casing that rated current is below 200A, is widely adopted.And
Using less in the breaker of plastic casing of 400A, 630A and 800A, user often compares worry.But insert
The mounting means of formula brings great convenience really to the maintenance of chopper and replacing.
Additionally, along with the continuous expansion of power system capacity, the capacity of short circuit of system is being continuously increased, for it
The short circuit breaking capacity of supporting breaker of plastic casing is also improving.When short circuit breaking capacity and KA Rms
When increasing to certain limit, also require that plug-in moulded case circuit breaker is at higher short circuit breaking capacity and the most resistance to
Will not be burnt out by its big electric current can be born between plug and socket during electric current or scold out arcing.This is also to inserting
The contact reliability entering formula chopper is had higher requirement.Visible, it is disconnected that the plug-in type of traditional structure moulds shell
Road device is when larger current, and its structure exists some problems, cannot in the chopper of bigger rated current
Use plug in circuit breaker structure.
Summary of the invention
In view of this, the invention provides a kind of face contact plug in circuit breaker, it is possible to solve tradition plug-in type
Wiring construction exist because of breaker contacts heating and the safety issue that causes under big current conditions.
A kind of face contact plug in circuit breaker, including breaker body and plug-in type erecting bed, wherein, open circuit
Device body also includes plug, clamp nut and locking nut, and plug is planar structure, plug is machined with logical
Hole, this through hole for through hold-down bolt, plug be fixedly mounted on the binding post of breaker body and with
It keeps reliable contacts, and breaker body is machined with the through hole running through its thickness direction, the diameter of through hole and
Number is corresponding with clamp nut and locking nut, and through hole is used for through hold-down bolt and clamping screw and sets
Putting clamp nut and locking nut, the lead to the hole site arranging clamp nut is corresponding with the through hole on plug and same
Axle；
Plug-in type erecting bed includes insulating base, socket, screw, hold-down bolt and clamping screw, and socket is L
The bending structure of type, the horizontal and vertical part of socket is all machined with through hole, and on socket, horizontal component is logical
Hole is used for and external cabling, and the through hole of vertical component is for through hold-down bolt；The appearance of socket vertical component
Face is the contact surface with plug, and the horizontal component of socket is along the thickness direction of insulating base through insulating base and by spiral shell
Nail is fixing, and the screw portion of hold-down bolt exposes after the through hole of vertical component through on insulating base and socket, pressure
The head of tight bolt is fixed on inside insulating base；Outside the screw portion of clamping screw passes after chopper insulating base
Dew, the head of clamping screw is fixed on inside insulating base；
The wiring after plate of the L-type bending structure of socket, during other connection types, socket uses slab construction；
Further, plug and socket all uses fine copper row and contact surface silver-plated；
Further, the horizontal direction at socket leaves the free gap of 0.5 to 3mm, prevents chopper each
The plug of pole or socket make copper bar normally not compress because of thickness mismachining tolerance, thus cause the contact surface can not be real
The contact of existing face affects the conduction property of chopper；
Further, one end of locking nut and clamp nut is metal material, and the other end is with flat recess
Insulant；
Operation principle: locking nut and clamping screw are used for breaker body and the locking of plug-in type erecting bed,
Clamp nut and hold-down bolt are used for the plug on breaker body and the pressure of the socket on plug-in type erecting bed
Tightly；During use, clamping screw on plug-in type erecting bed and hold-down bolt insert respectively on breaker body with
And the through hole on plug, now the surface of plug and socket fits mutually, leading to from breaker body rear end face
Screw in locking nut and clamp nut in hole respectively, complete chopper and be reliably connected with plug-in type erecting bed.
Beneficial effect:
1, the plug on breaker body of the present invention and the socket part on plug-in type erecting bed are both designed as plane
Structure, when breaker body and plug-in type erecting bed are installed, relies on the plane of plug and socket to connect
Touch conducting, therefore can bear larger current and will not burn out or scold out arcing, improve plug in circuit breaker
Contact reliability.
2, the plug and socket of the present invention all uses fine copper row and contact plane silver-plated, it is possible to reduce contact resistance,
Improve the dependability of chopper.
3, the present invention uses the form of clamp nut and locking nut to enter breaker body and plug-in type erecting bed
Row is installed fixing, can guarantee that plug and socket realizes reliable contacts；One end of nut is metal material, another
End is the insulant with flat recess, and employing insulant is to guarantee the insulation with main circuit, to prevent dimension
The personnel that repair are electrically shocked when maintenance or replacing chopper, it is ensured that the safety of use.
Accompanying drawing explanation
Fig. 1 is the plug-in type erecting bed integral installation structural representation with breaker body of the present invention；
Fig. 2 is the wiring construction schematic diagram on plug-in type erecting bed of the present invention.
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.
Detailed description of the invention
Develop simultaneously embodiment below in conjunction with the accompanying drawings, describes the present invention.
As shown in Figure 1, a rated current is the three pole breaker of plastic casing of 1250A or 1600A, by breaking
Road device body 9 and plug-in type erecting bed composition；
6 plugs 3 of breaker body 9 three pole are all processed with fine copper row, and contact surface is smooth and silver-plated, copper
Being machined with the through hole of 2 φ 11 on row, through hole is for through hold-down bolt, and peace fixed by 6 plug 3 plugs
Being contained on the front end face of breaker body, plug 3 keeps reliable contacts with binding post；Breaker body 9
On be machined with the through hole running through its thickness direction, the diameter of through hole and number and clamp nut 1 and locking nut 2
Corresponding, through hole is used for through hold-down bolt 7 and clamping screw 5 and arranges clamp nut 1 and locking screw
Female 2, the lead to the hole site arranging clamp nut 1 is corresponding with the through hole on copper bar and coaxial, breaker body 9
On have 12 through holes and pass for hold-down bolts 7,4 through holes pass for clamping screws；
As shown in Figure 2, plug-in type erecting bed is by plate shaped insulating base 4, socket 6, screw 8, compression
Bolt 7 and clamping screw 5 form, and six sockets 6 all use the bending structure of fine copper row's processing l-shaped,
All being machined with the through hole of 2 φ 10.5 in the horizontal and vertical part of socket 6, each socket 6 is by two M5
Screw 8 be fixed on insulating base 4, socket 6 can not rotate, but can move about 3mm in the horizontal direction.
On socket 6, two φ 10.5 through holes of horizontal component are in the wiring position of erecting bed, for main circuit
Wiring；Two φ 10.5 through holes of vertical component are built with the hold-down bolt 7 of two M8, hold-down bolt 7
Turret head be embedded in relevant position on insulating base 4 hexagonal hole in, make hold-down bolt 7 will not turn when tightening
Dynamic.The screw portion of clamping screw 5 exposes after insulating base 4, and the head of clamping screw 5 is fixed on absolutely
Edge seat 4 is internal；
During use, in φ 11 through hole on the plug 3 of breaker body 9, it is inserted in M8 hold-down bolt 7, will
When breaker body 9 shifts the 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 ensure that
Plug on breaker body and being reliably connected, the most again by locking nut 2 of socket on plug-in type erecting bed
It is screwed into clamping screw 5, makes breaker body 9 and plug-in type erecting bed be fixed together reliably.
In sum, these are only presently preferred embodiments of the present invention, be not intended to limit the guarantor of the present invention
Protect scope.All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made,
Should be included within the scope of the present invention.
Claims (3)
1. face contact plug in circuit breaker, it is characterised in that including: breaker body (9) and slotting
Entering formula erecting bed, wherein, breaker body (9) also includes plug (3), clamp nut (1) and locking
Nut (2), plug (3) is planar structure, before plug (3) is fixedly mounted on breaker body (9)
It is reliably connected on end face and with breaker connecting terminal, plug (3) is machined with and runs through the logical of its thickness direction
Hole, diameter and the number of through hole are corresponding with clamp nut (1), arrange the through hole position of clamp nut (1)
Put corresponding and coaxial with the through hole on plug (3)；
Plug-in type erecting bed includes insulating base (4), socket (6), screw, hold-down bolt (7) and locking screw
Bolt (5), socket (6) is the bending structure of L-type after plate during wiring, and the level of socket (6) is with vertical
Through hole all it is machined with in straight part；The outer surface of socket (6) vertical component is and the contact surface of plug (3),
The horizontal component of socket (6) and is fixed by screw along the thickness direction of insulating base (4) through insulating base (4)；
It is internal that the head of hold-down bolt (7) is fixed on insulating base (4), and the screw portion of hold-down bolt (7) passes
Exposing after the through hole of insulating base (4) and the upper vertical component of socket (6), the head of clamping screw (5) is fixed
Internal at insulating base (4), the screw portion of clamping screw (5) exposes after insulating base (4)；
One end of described locking nut (2) and one end of clamp nut (1) are metal material, and the other end is
Insulant with flat recess.
2. contact plug in circuit breaker in face as claimed in claim 1, it is characterised in that described plug (3)
All use with socket (6) fine copper row to make and contact surface is silver-plated.
3. contact plug in circuit breaker in face as claimed in claim 1 or 2, it is characterised in that insert described
The horizontal direction of seat (6) leaves the free gap of 0.5 to 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410178074.4A CN104008929B (en) | 2014-04-29 | 2014-04-29 | A kind of face contact plug in circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410178074.4A CN104008929B (en) | 2014-04-29 | 2014-04-29 | A kind of face contact plug in circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104008929A CN104008929A (en) | 2014-08-27 |
| CN104008929B true CN104008929B (en) | 2016-08-31 |
Family
ID=51369549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410178074.4A Active CN104008929B (en) | 2014-04-29 | 2014-04-29 | A kind of face contact plug in circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104008929B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105931927A (en) * | 2016-05-25 | 2016-09-07 | 林益晶 | Frame circuit breaker |
| CN108258553B (en) * | 2018-03-22 | 2024-06-18 | 维纳尔（北京）电气系统有限公司 | Adapter and adapter assembly |
| CN110010418B (en) * | 2019-04-01 | 2024-04-26 | 常熟市国瑞科技股份有限公司 | Plastic case circuit breaker with frame circuit breaker characteristics |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3334586B2 (en) * | 1997-12-24 | 2002-10-15 | 三菱電機株式会社 | Current detector |
| CN2653722Y (en) * | 2003-09-01 | 2004-11-03 | 上海电器股份有限公司人民电器厂 | Multiple pole integrated plug-in type terminal base |
| CN201853659U (en) * | 2010-11-25 | 2011-06-01 | 河南省电力公司郑州供电公司 | Clamp device of breaker flange and wiring board |
| CN202651007U (en) * | 2012-05-18 | 2013-01-02 | 苏州未来电器有限公司 | Housing of plug-in device with rapid bus-bar insertion device |
| CN203895384U (en) * | 2014-04-29 | 2014-10-22 | 常熟瑞特电气股份有限公司 | Surface contact plug-in type breaker |
-
2014
- 2014-04-29 CN CN201410178074.4A patent/CN104008929B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104008929A (en) | 2014-08-27 |
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