CN203839320U - Residual current action circuit breaker - Google Patents

Residual current action circuit breaker Download PDF

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Publication number
CN203839320U
CN203839320U CN201420239358.5U CN201420239358U CN203839320U CN 203839320 U CN203839320 U CN 203839320U CN 201420239358 U CN201420239358 U CN 201420239358U CN 203839320 U CN203839320 U CN 203839320U
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China
Prior art keywords
arc
chamber
sheet
residual current
current action
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Active
Application number
CN201420239358.5U
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Chinese (zh)
Inventor
刘和
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yueqing City Hua Luo Electrical Appliances Co Ltd
Original Assignee
Yueqing City Hua Luo Electrical Appliances Co Ltd
Priority date (The priority date 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 date listed.)
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Application filed by Yueqing City Hua Luo Electrical Appliances Co Ltd filed Critical Yueqing City Hua Luo Electrical Appliances Co Ltd
Priority to CN201420239358.5U priority Critical patent/CN203839320U/en
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Publication of CN203839320U publication Critical patent/CN203839320U/en
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Abstract

Provided is a residual current action circuit breaker which mainly solves a problem of a poor arc extinguishing effect when a conventional residual current action circuit breaker generates an arc. The residual current action circuit breaker is characterized by including an arc ignition chamber (5), wherein the arc ignition chamber (5) is corresponding to an arc incoming end of an arc extinguishing cover (21); a magnetic iron sheet (24) is disposed at the bottom of the arc ignition chamber (5); one end of the magnetic iron sheet (24) is corresponding to a moving contact while the other end of the magnetic iron sheet (24) is corresponding to the arc incoming end of the arc extinguishing cover (21); a plastic arc insulating sheet (23) leans against the conductive iron sheet (24) is disposed on an outer side of the magnetic iron sheet (24); and an arc ignition sheet (22) presses against the surface of an outer side of the plastic arc insulating sheet (23). According to the residual current action circuit breaker, the magnetic iron sheet is disposed at the bottom of the arc ignition chamber corresponding to the arc extinguishing chamber, the plastic arc insulating sheet is disposed at the upper end of the magnetic iron sheet, a magnetic field generated by the magnetic iron sheet is enhanced and is corresponding to the arc extinguishing cover, and thus an arc can be quickly guided into the arc extinguishing cover, and the arc extinguishing effect is good.

Description

A kind of residual current action breaker
Technical field
The utility model belongs to low-voltage circuit breaker field, particularly a kind of residual current action breaker.
Background technology
Residual current action breaker have structure advanced person, dependable performance, breaking capacity strong, prevent people's features such as function of getting an electric shock; be used as the overload of illumination, distribution line and equipment of office building, house and other buildings and short-circuit protection, also can be used as the use of the frequent make-break operation of circuit and conversion.Be mainly used in the various places such as industry, business, high level and residential houses.Present residual current action breaker is when electric arc produces, and arc quenching effect is poor.
Utility model content
In order to overcome the deficiency of background technology, the utility model provides a kind of residual current action breaker, has mainly solved present residual current action breaker when electric arc produces, the problem that arc quenching effect is poor.
The technical scheme that the utility model adopts is:
A kind of residual current action breaker, comprise housing, in described housing, be provided with operating mechanism, tripping mechanism, arc-extinguishing mechanism and contact system, described arc-extinguishing mechanism comprises arc striking piece, arcing chamber and the arc-extinguish chamber that is arranged on arcing chamber, described contact system comprises fixed contact and moving contact, also comprise striking chamber, it is corresponding that described striking chamber and arc-extinguish chamber enter arc end, bottom, described striking chamber is provided with magnetic conductive iron sheet, one end of described magnetic conductive iron sheet is corresponding with moving contact, it is corresponding that the other end and arc-extinguish chamber enter arc end, described magnetic conductive iron sheet outside is provided with the plastics arc sheet fitting with it, described arc striking piece is pressed on plastics arc sheet outer surface.
Described tripping mechanism comprises magnetictrip, described magnetictrip is electrically connected with zero-sequence transformer and torsion spring, described housing upper surface is provided with testing button, described testing button one end is connected with zero line, the other end is provided with pull bar, described pull bar bottom is connected with U-shaped pressing board, and the concave part correspondence of described U-shaped pressing board is provided with copper bar, and described copper bar is electrically connected to the coil on magnetictrip by torsion spring.
In described housing, be provided with arc striking piece buckling groove, described arc striking piece buckling groove coordinates with the clamping of the adaptive formation of arc striking piece.
In described housing, be provided with fixed contact and lead arc sheet, described fixed contact is led arc sheet one end and is connected with arc-extinguish chamber, and the curved portions of other end shape and fixed contact is coincide and interconnected.
The beneficial effects of the utility model are: the utility model provides a kind of residual current action breaker, the bottom, arc chamber of leading that its arcing chamber is corresponding is provided with magnetic conductive iron sheet, its iron plate upper end is provided with plastics arc sheet, the magnetic field that magnetic conductive iron sheet produces strengthens and is corresponding with arc-extinguish chamber, electric arc can be led fast in arc-extinguish chamber, arc quenching effect is good.
Accompanying drawing explanation
Fig. 1 is embodiment cutaway view of the utility model.
Fig. 2 is the I place enlarged drawing of an embodiment of the utility model.
Fig. 3 is the P place enlarged drawing of an embodiment of the utility model.
Fig. 4 is the A place enlarged drawing of an embodiment of the utility model.
In figure, housing 1, magnetictrip 3, arc striking piece buckling groove 4, striking chamber 5, fixed contact 6, fixed contact is led arc sheet 7, testing button 13, U-shaped pressing board 14, pull bar 15, copper bar 16, arc-extinguish chamber 21, arc striking piece 22, plastics arc sheet 23, magnetic conductive iron sheet 24, zero-sequence transformer 31, torsion spring 32.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail: if Fig. 1 is in conjunction with as shown in Fig. 2 to Fig. 4, a kind of residual current action breaker, comprise housing 1, in described housing 1, be provided with operating mechanism, tripping mechanism, arc-extinguishing mechanism and contact system, described arc-extinguishing mechanism comprises arc striking piece 22, arcing chamber and the arc-extinguish chamber 21 that is arranged on arcing chamber, described contact system comprises fixed contact 6 and moving contact, also comprise striking chamber 5, it is corresponding that described striking chamber 5 and arc-extinguish chamber 21 enter arc end, 5 bottoms, described striking chamber are provided with magnetic conductive iron sheet 24, one end of described magnetic conductive iron sheet 24 is corresponding with moving contact, it is corresponding that the other end and arc-extinguish chamber 21 enter arc end, described magnetic conductive iron sheet 24 outsides are provided with the plastics arc sheet 23 fitting with it, described arc striking piece 22 is pressed on plastics arc sheet 23 outer surfaces.Plastics arc sheet 23 arcs are effective, easy to use, the utility model provides a kind of residual current action breaker, the bottom, arc chamber of leading that its arcing chamber is corresponding is provided with magnetic conductive iron sheet, its iron plate upper end is provided with plastics arc sheet, the magnetic field that magnetic conductive iron sheet produces strengthens and is corresponding with arc-extinguish chamber, electric arc can be led fast in arc-extinguish chamber, and arc quenching effect is good.
In the utility model, as shown in the figure, described tripping mechanism comprises magnetictrip 3, described magnetictrip 3 is electrically connected with zero-sequence transformer 31 and torsion spring 32, and described housing 1 upper surface is provided with testing button 13, and described testing button 13 one end are connected with zero line, the other end is provided with pull bar 15, described pull bar 15 bottoms are connected with U-shaped pressing board 14, and the concave part correspondence of described U-shaped pressing board 14 is provided with copper bar 16, and described copper bar 16 is electrically connected to the coil on magnetictrip 3 by torsion spring 32.During use, press testing button 13, make it pass through the U-shaped pressing board 14 of pull bar 15 interlock, because U-shaped pressing board 14 concave part gaps are provided with copper bar 16, both contacts while pressing, and copper bar 16 is electrically connected to the coil on magnetictrip 3 by torsion spring 32, because magnetictrip 3 is connected with live wire, and magnetictrip 3 is electrically connected to zero-sequence transformer 31, thus can be by carry out the electrical connection situation of test both opens device inside by testing button 13, this structure is simple in structure, and result of use is good.
In the utility model, as shown in the figure, in described housing 1, be provided with arc striking piece buckling groove 4, described arc striking piece buckling groove 4 coordinates with arc striking piece 22 adaptive formation clampings.Good fixing effect, can arbitrarily not move, and fail safe is better.
In the utility model, as shown in the figure, in described housing 1, be provided with fixed contact and lead arc sheet 7, described fixed contact is led arc sheet 7 one end and is connected with arc-extinguish chamber 21, and the curved portions of other end shape and fixed contact 6 is coincide and interconnects.Described fixed contact is led arc sheet 7 one end and is connected with arc-extinguish chamber 21, and the other end coincide and is connected with the curved portions of fixed contact 6, electric arc can be directed into arc extinguishing in arc-extinguish chamber fast, and compact conformation arc leading and suppressing is effective.
Embodiment should not be considered as restriction of the present utility model, but any improvement of doing based on spirit of the present utility model, all should be within protection range of the present utility model.

Claims (4)

1. a residual current action breaker, comprise housing (1), described housing is provided with operating mechanism in (1), tripping mechanism, arc-extinguishing mechanism and contact system, described arc-extinguishing mechanism comprises arc striking piece (22), arcing chamber and the arc-extinguish chamber (21) that is arranged on arcing chamber, described contact system comprises fixed contact (6) and moving contact, it is characterized in that: also comprise striking chamber (5), it is corresponding that described striking chamber (5) and arc-extinguish chamber (21) enter arc end, bottom, described striking chamber (5) is provided with magnetic conductive iron sheet (24), one end of described magnetic conductive iron sheet (24) is corresponding with moving contact, it is corresponding that the other end and arc-extinguish chamber (21) enter arc end, described magnetic conductive iron sheet (24) outside is provided with the plastics arc sheet (23) fitting with it, described arc striking piece (22) is pressed on plastics arc sheet (23) outer surface.
2. a kind of residual current action breaker according to claim 1, it is characterized in that: described tripping mechanism comprises magnetictrip (3), described magnetictrip (3) is electrically connected with zero-sequence transformer (31) and torsion spring (32), described housing (1) upper surface is provided with testing button (13), described testing button (13) one end is connected with zero line, the other end is provided with pull bar (15), described pull bar (15) bottom is connected with U-shaped pressing board (14), the concave part correspondence of described U-shaped pressing board (14) is provided with copper bar (16), described copper bar (16) is electrically connected to the coil on magnetictrip (3) by torsion spring (32).
3. a kind of residual current action breaker according to claim 1 and 2, is characterized in that: in described housing (1), be provided with arc striking piece buckling groove (4), described arc striking piece buckling groove (4) coordinates with the clamping of the adaptive formation of arc striking piece (22).
4. a kind of residual current action breaker according to claim 1 and 2, it is characterized in that: in described housing (1), be provided with fixed contact and lead arc sheet (7), described fixed contact is led arc sheet (7) one end and is connected with arc-extinguish chamber (21), and the curved portions of other end shape and fixed contact (6) is coincide and interconnects.
CN201420239358.5U 2014-05-12 2014-05-12 Residual current action circuit breaker Active CN203839320U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420239358.5U CN203839320U (en) 2014-05-12 2014-05-12 Residual current action circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420239358.5U CN203839320U (en) 2014-05-12 2014-05-12 Residual current action circuit breaker

Publications (1)

Publication Number Publication Date
CN203839320U true CN203839320U (en) 2014-09-17

Family

ID=51517127

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420239358.5U Active CN203839320U (en) 2014-05-12 2014-05-12 Residual current action circuit breaker

Country Status (1)

Country Link
CN (1) CN203839320U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106653431A (en) * 2017-03-13 2017-05-10 新驰电气有限公司 Arc extinguishing system of residual current operated circuit breaker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106653431A (en) * 2017-03-13 2017-05-10 新驰电气有限公司 Arc extinguishing system of residual current operated circuit breaker

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