CN104851761B - A kind of shunt trip of breaker - Google Patents
A kind of shunt trip of breaker Download PDFInfo
- Publication number
- CN104851761B CN104851761B CN201510244834.1A CN201510244834A CN104851761B CN 104851761 B CN104851761 B CN 104851761B CN 201510244834 A CN201510244834 A CN 201510244834A CN 104851761 B CN104851761 B CN 104851761B
- Authority
- CN
- China
- Prior art keywords
- breaker
- spring plate
- shell fragment
- shunt
- magnetic element
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/18—Means for extinguishing or suppressing arc
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H9/443—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
Abstract
The present invention discloses a kind of shunt trip of breaker, and integrated installation is on Shell of circuit breaker, including shunt opening coil, spring plate and quiet shell fragment；Accessed after shunt opening coil, spring plate and the series connection of quiet shell fragment in power control circuit, movable contact forms co-operating contact with quiet shell fragment stationary contact on spring plate, the operating mechanism of spring plate and breaker is connected, and contact is opened or closed, and the contact that spring plate is formed with quiet shell fragment is placed in magnetic field.The present invention reaches the effect of fast arc extinction because the effect in arc blow-out magnetic field, electric arc can extinguish rapidly, and reliable and stable.
Description
Technical field
The present invention relates to breaker technical field, refers in particular to a kind of shunt trip of breaker.
Background technology
The shunt trip of breaker is remote operation brake separating mechanism, and shunt trip is short time duty, point
Encouraging the coil electricity time is usually no more than 1S, and otherwise shunt opening coil can be blown.Breaker of plastic casing is to prevent shunt opening coil from burning,
Connected in shunt trip a microswitch, when shunt trip is by armature adhesive, microswitch is from closure
State Transferring is into off-state so that and the power control circuit of shunt trip is cut off, and shunt opening coil is no longer powered all the time,
So as to avoid shunt opening coil scaling loss.After breaker fastens lock again, microswitch comes back to closing position.
In the prior art, the shunt trip of breaker is set generally in the form of annex, i.e., attached in breaker side
If shunt trip, breaker is connected with shunt trip by connecting rod.The defects of breaker, is：
One, when shunt trip is by armature adhesive, circuit breaker operation mechanism drivening rod action, connecting rod drives fine motion
Switch is converted into disconnecting shape body from closure state so that the power control circuit of shunt trip is cut off, shunted exciter tripping dress
The action for putting middle microswitch lags behind the action of breaker so that shunt opening coil power cut-off time lag, can not synchronously break
Shunt opening coil power supply is opened, jeopardizes operating personnel's safety.
Two, the moment that shunt trip microswitch is converted into disconnecting shape body from closure state will produce electric arc, straight
Flow under voltage drive environment, by experiment, between microswitch contact the arc duration reach more than 200ms, harm is larger, leads
The interlock circuit for causing to be attached thereto burns.
The content of the invention
It is an object of the invention to provide a kind of shunt trip of breaker so that shunt trip drives in direct current
Fast arc extinction is realized under dynamic, and disjunction response is rapid.
To reach above-mentioned purpose, solution of the invention is：
A kind of shunt trip of breaker, integrated installation on Shell of circuit breaker, including shunt opening coil, spring plate and
Quiet shell fragment；Accessed after shunt opening coil, spring plate and the series connection of quiet shell fragment in power control circuit, movable contact and quiet shell fragment on spring plate
Stationary contact forms co-operating contact, and the operating mechanism of spring plate and breaker is connected, and contact is opened or closed, spring plate with
The contact that quiet shell fragment is formed is placed in magnetic field.
Further, in addition to trace, trace one end are connected with circuit breaker operation mechanism, the trace other end with
Spring plate is connected.
Further, the first magnetic element is set in contact side, opposite side sets the second magnetic element, and first in contact
The magnetic element one side magnetic relative with contact with the second magnetic element is opposite.
Further, support body is set on Shell of circuit breaker, and slot is formed at support body top, and the first magnetic element is placed in slot
In, the storage tank of a side opening is formed at support body bottom, and the second magnetic element is placed in storage tank through opening, covered on by outer cover disconnected
Road the second magnetic element of device upper limit.
Further, the first magnetic element and the second magnetic element are permanent magnet.
Further, accessed after shunt opening coil, spring plate and the series connection of quiet shell fragment by fast insertion terminal in power control circuit, point
Encourage coil one end to be connected with spring plate, the shunt opening coil other end is connected with fast insertion terminal, the connection of quiet shell fragment one end spring plate, quiet bullet
The piece other end is connected with fast insertion terminal, and fast insertion terminal is connected with power control circuit.
After such scheme, integrated installation of the present invention is on Shell of circuit breaker, i.e. shunt opening coil, spring plate, quiet shell fragment
Integrated installation is set on Shell of circuit breaker, compared with prior art shunt trip with attachment version, more cost-effective.
After shunt opening coil obtains the instruction of power control circuit, shunt opening coil excitation provides rapidly to circuit breaker operation mechanism
Instruction, circuit breaker operation mechanism are acted so as to drive spring plate to act so that and spring plate disconnects with the contact that quiet shell fragment is formed, point
Encourage coil there is no electric current and to flow through, protect shunt opening coil not to be burned out.
The contact that spring plate is formed with quiet shell fragment is placed in magnetic field, in the operation of direct current shunt opening voltage, spring plate and quiet bullet
When the contact that piece is formed disconnects generation electric arc, due to the effect in arc blow-out magnetic field, electric arc can extinguish rapidly, reach fast arc extinction
Effect, and it is reliable and stable.
The operating mechanism of spring plate and breaker of the present invention is connected, spring plate and operating mechanism synchronization action, contact
Disconnection is driven by circuit breaker operation mechanism, and disjunction response is rapid, preferably prevents coil burnout phenomenon；Disjunction contact is in magnetic fields
The lower preferably control contact quenching time, by testing the arc time from being changed into originally more than 200ms within 15ms, stable performance.
Meanwhile the present invention can be in AC DC electric pressing operation, and power positive cathode is needed not distinguish between, make installation more convenient.
Brief description of the drawings
Fig. 1 is the positive structure schematic of the present invention；
Fig. 2 is the structure schematic diagram of the present invention；
Fig. 3 is another structural representation of the present invention.
The spring plate 2 of shunt opening coil 1
The quiet trace 4 of shell fragment 3
The fast operating mechanism 6 of insertion terminal 5
The magnetic element 72 of first magnetic element 71 second
The support body 101 of housing 10.
Embodiment
The present invention is described in detail below in conjunction with drawings and the specific embodiments.
Refering to shown in Fig. 1 to Fig. 3, a kind of shunt trip for breaker that the present invention discloses, including shunt opening coil 1,
Spring plate 2, quiet shell fragment 3 and trace 4, integrated installation is on Shell of circuit breaker 10, i.e. shunt opening coil 1, spring plate 2, quiet shell fragment 3
With the integrated installation of trace 4 on Shell of circuit breaker 10.
Shunt opening coil 1, spring plate 2 and quiet shell fragment 3 access power control circuit after connecting（Not shown in figure）In, specifically
For：Shunt opening coil 1, spring plate 2 and quiet shell fragment 3 are accessed in power control circuit after connecting by fast insertion terminal 5, shunt opening coil 1
One end is connected by square silk with spring plate 2, and the other end of shunt opening coil 1 is connected by square silk and wire with fast insertion terminal 5.Quiet shell fragment
3 one end are connected with spring plate 2, and the quiet other end of shell fragment 3 is connected by wire with fast insertion terminal 5, fast insertion terminal 5 and power supply electricity
Road connects.
Moving contact forms co-operating contact, the one end of trace 4 and breaker operator with the quiet upper static contact of shell fragment 3 on spring plate 2
Mechanism 6 is connected, and the other end of trace 4 is connected with spring plate 2.Circuit breaker operation mechanism 6 action make contact disconnect or
Closure.The contact that spring plate 2 is formed with quiet shell fragment 3 is placed in magnetic field.
In ability embodiment, the first magnetic element 71 is set in contact side, opposite side sets the second magnetic member in contact
Part 72, and the first magnetic element 71 it is relative with contact with the second magnetic element 72 one side magnetic it is opposite.First magnetic element 71
It is preferably magnet steel with the second magnetic element 72.
Contact is placed between the first magnetic element 71 and the second magnetic element 72, and spring plate 2 produces electricity with the quiet disjunction of shell fragment 3
During arc, electric arc is because of the effect in magnetic field to extinguish rapidly so that direct current pressing operation, it is not necessary to distinguish both positive and negative polarity, make installation more
It is convenient.
As shown in figure 3, setting support body 101 on Shell of circuit breaker 10, slot, the first magnetic member are formed at the top of support body 101
Part 71 is placed in slot, and the storage tank of a side opening is formed at the bottom of support body 101, and the second magnetic element 72 is placed in storage tank through opening
In, by outer cover（Not shown in figure）Cover on the second magnetic element of upper limit 72 of Shell of circuit breaker 10.The structure causes first
Magnetic element 71 and second magnetic element, 72 installing/dismountings are more convenient.
The contact that spring plate 2 and quiet shell fragment 3 are formed is placed in magnetic field by the present invention, after shunt opening coil 1 obtains electrical excitation, shunt opening
Coil 1 drives the action of circuit breaker operation mechanism 6 to be threaded off, and circuit breaker operation mechanism 6 is acted so as to drive the synchronization action of spring plate 2,
So that the contact that spring plate 2 and quiet shell fragment 3 are formed disconnects, there is no electric current to flow through for shunt opening coil 1, protect shunt opening coil 1 not by
Burn.
Because shunt opening coil 1, spring plate 2, quiet shell fragment 3 and the integrated installation of trace 4 are on Shell of circuit breaker 10, breaker
The action of operating mechanism 6 drives the synchronization action of spring plate 2 so that the contact disjunction response that spring plate 2 is formed with quiet shell fragment 3 is rapid.
After breaker fastens lock again, the displacement of 4 ejection spring plate of connecting rod 2, spring plate are driven in the action of circuit breaker operation mechanism 6
2 come back to closing position with quiet shell fragment 3.
In the operation of direct current shunt opening voltage, when spring plate 2 disconnects generation electric arc with the contact that quiet shell fragment 3 is formed, due to blowing
The effect in arc magnetic field, electric arc can extinguish rapidly, reach the effect of fast arc extinction, and reliable and stable.Meanwhile work as shunt opening coil
When being persistently powered, breaker major loop may insure no electric current output.
The preferred embodiments of the present invention are the foregoing is only, not the limitation of this case design, all designs according to this case are closed
The equivalent variations that key is done, each fall within the protection domain of this case.
Claims (6)
- A kind of 1. shunt trip of breaker, it is characterised in that：Integrated installation is on Shell of circuit breaker, including shunt opening line Circle, spring plate and quiet shell fragment, shunt opening coil, spring plate, quiet shell fragment integrated installation are on Shell of circuit breaker；Shunt opening coil, move Accessed after piece and the series connection of quiet shell fragment in power control circuit, movable contact is formed to coordinate with stationary contact on quiet shell fragment and touched on spring plate The operating mechanism of point, spring plate and breaker is connected, and co-operating contact is opened or closed, and spring plate is formed with quiet shell fragment Co-operating contact is placed in magnetic field.
- A kind of 2. shunt trip of breaker as claimed in claim 1, it is characterised in that：Also include trace, interlock The operating mechanism of bar one end and breaker is connected, and the trace other end is connected with spring plate.
- A kind of 3. shunt trip of breaker as claimed in claim 1, it is characterised in that：Set in co-operating contact side First magnetic element, the second magnetic element is set in co-operating contact opposite side, and the first magnetic element and the second magnetic element with The relative one side magnetic of co-operating contact is opposite.
- A kind of 4. shunt trip of breaker as claimed in claim 3, it is characterised in that：Set on Shell of circuit breaker Slot is formed at support body, support body top, and the first magnetic element is placed in slot, and the storage tank of a side opening is formed at support body bottom, the Two magnetic elements are placed in storage tank through opening, and the magnetic element of breaker upper limit second is covered on by outer cover.
- A kind of 5. shunt trip of breaker as claimed in claim 3, it is characterised in that：First magnetic element and second Magnetic element is permanent magnet.
- A kind of 6. shunt trip of breaker as claimed in claim 1, it is characterised in that：Shunt opening coil, spring plate and Accessed after quiet shell fragment series connection by fast insertion terminal in power control circuit, shunt opening coil one end is connected with spring plate, shunt opening coil The other end is connected with fast insertion terminal, and quiet shell fragment one end is connected with spring plate, and the quiet shell fragment other end is connected with fast insertion terminal, fast spigot Son is connected with power control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510244834.1A CN104851761B (en) | 2015-05-14 | 2015-05-14 | A kind of shunt trip of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510244834.1A CN104851761B (en) | 2015-05-14 | 2015-05-14 | A kind of shunt trip of breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104851761A CN104851761A (en) | 2015-08-19 |
| CN104851761B true CN104851761B (en) | 2018-01-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510244834.1A Active CN104851761B (en) | 2015-05-14 | 2015-05-14 | A kind of shunt trip of breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104851761B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4700161A (en) * | 1986-07-07 | 1987-10-13 | General Electric Company | Combined trip unit and accessory module for electronic trip circuit breakers |
| CN201773803U (en) * | 2010-07-23 | 2011-03-23 | 浙江天正电气股份有限公司 | Minisize circuit breaker with remote breaking function |
| CN103477411A (en) * | 2011-05-19 | 2013-12-25 | 富士电机机器制御株式会社 | Electromagnetic contactor |
| CN204680631U (en) * | 2015-05-14 | 2015-09-30 | 厦门宏发开关设备有限公司 | A kind of shunt trip of circuit breaker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2295275B (en) * | 1994-11-15 | 1998-08-12 | Matsushita Electric Works Ltd | Circuit breaker |
-
2015
- 2015-05-14 CN CN201510244834.1A patent/CN104851761B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4700161A (en) * | 1986-07-07 | 1987-10-13 | General Electric Company | Combined trip unit and accessory module for electronic trip circuit breakers |
| CN201773803U (en) * | 2010-07-23 | 2011-03-23 | 浙江天正电气股份有限公司 | Minisize circuit breaker with remote breaking function |
| CN103477411A (en) * | 2011-05-19 | 2013-12-25 | 富士电机机器制御株式会社 | Electromagnetic contactor |
| CN204680631U (en) * | 2015-05-14 | 2015-09-30 | 厦门宏发开关设备有限公司 | A kind of shunt trip of circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104851761A (en) | 2015-08-19 |
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