CN207303017U - A kind of AC and DC omnipotent breaker with stronger arc quenching effect - Google Patents
A kind of AC and DC omnipotent breaker with stronger arc quenching effect Download PDFInfo
- Publication number
- CN207303017U CN207303017U CN201721057175.1U CN201721057175U CN207303017U CN 207303017 U CN207303017 U CN 207303017U CN 201721057175 U CN201721057175 U CN 201721057175U CN 207303017 U CN207303017 U CN 207303017U
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- China
- Prior art keywords
- static contact
- arc
- insulating shroud
- breaker
- armature
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Abstract
A kind of AC and DC omnipotent breaker with stronger arc quenching effect, including housing, static contact, moving contact, operating mechanism, stored energy mechanism, magnetic flux buckle releaser and arc-chutes, further include insulation arc-extinguishing mechanism, the insulation arc-extinguishing mechanism includes an insulating shroud, armature and yoke, and the yoke is fixed on the side of circuit breaker static contact；An insulating shroud and armature are located at the opposite side of static contact, and an insulating shroud is fixedly connected with armature, and two side plates of an insulating shroud are rotatablely connected by shaft and static contact；Torsional spring is equipped between an insulating shroud and static contact.An insulating shroud of the utility model can be rapidly inserted into breaker disjunction short circuit current flow and be covered between moving contact and static contact, make the arc extinction between dynamic and static contact, thus shorten the amplification time of arc energy, realize the short arcing of breaker or without arcing, so as to substantially increase the ability of breaker disjunction AC and DC short circuit current flow, the application range of breaker is expanded.
Description
Technical field
A kind of general omnipotent breaker of AC and DC with strong short circuit current flow breaking capacity is the utility model is related to, is belonged to
In emergency protective device technical field.
Background technology
Omnipotent breaker (ACB) is the industrial important electric elements with civilian low-voltage distribution apparatus, more as distribution
The master switch of system low-voltage side, protects the overload and short trouble of distribution line.Wherein short trouble protection be its most
Important function, the short circuit current flow of circuit is very big during due to short trouble, breaker in disjunction short circuit current flow its dynamic and static touch
The very big plasma arc of energy can be produced between head, only by some technical measures quickly by arc extinction, breaker
It could complete the task of disjunction short circuit current flow.
At present, domestic and international ACB using arc-chutes technology to disjunction short circuit current flow when caused high temperature and pressure electric arc into
Row cooling and extinguishing, the arc quenching principle of this technology are：During disjunction short circuit current flow, treat to produce electric arc between dynamic and static contact and draw
After growing to the corresponding amplification of certain length, energy, arc-chutes are entered using magnetic field electro-dynamic force or other means driving high energy arc, are made
Extinguish under the cooling effect of its metal grid in arc-chutes.The arc quenching effect of this method is subject to such as arc-chutes material, touches
Head cut-offs the influence of the factors such as speed, clearance between open contacts, contact material, especially for the breaker of single-break structure, its disjunction
The ability of short circuit current flow is poor, is usually no more than exchange 400V, 50~80kA, if improving this performance parameter again, manufacture
Cost will greatly improve.And direct-current short circuit electric current is less susceptible to disjunction due to no zero passage process.
With the raising that the construction and development and people of power grid require electric network reliability, a kind of new go out objectively is needed
Arc scheme, to greatly improve the ability of ACB disjunction AC and DC short circuit current flows.
Utility model content
The purpose of this utility model is that the drawback for the prior art, there is provided a kind of friendship with stronger arc quenching effect is straight
Dual-purpose omnipotent breaker is flowed, to improve the ability of omnipotent breaker disjunction short circuit current flow, expands its application range.
Problem described in the utility model is realized with following technical proposals：
A kind of AC and DC omnipotent breaker with stronger arc quenching effect, including housing, static contact, moving contact,
Operating mechanism, stored energy mechanism, magnetic flux buckle releaser and arc-chutes, further include insulation arc-extinguishing mechanism, and the insulation arc-extinguishing mechanism includes
An insulating shroud, armature and yoke, the yoke are fixed on the side of circuit breaker static contact；An insulating shroud and armature position
In the opposite side of static contact, an insulating shroud is fixedly connected with armature and the gap between the moving contact and static contact of breaker
Corresponding, two side plates of an insulating shroud are rotatablely connected by shaft and static contact；Between an insulating shroud and static contact
Equipped with torsional spring.
The above-mentioned AC and DC omnipotent breaker with stronger arc quenching effect, the torsional spring and shaft are respectively provided with two
A, they are symmetrically mounted on the both sides of circuit breaker static contact.
The above-mentioned AC and DC omnipotent breaker with stronger arc quenching effect, the width of an insulating shroud are more than
The width of static contact and moving contact.
The above-mentioned AC and DC omnipotent breaker with stronger arc quenching effect, is additionally provided with dropout in Shell of circuit breaker
Mechanism, intelligent control module and magnetic flux buckle releaser.
The above-mentioned AC and DC omnipotent breaker with stronger arc quenching effect, an insulating shroud pass through with armature
Screw is fixed as one.
An insulating shroud of the utility model can be rapidly inserted into breaker disjunction short circuit current flow be covered in moving contact with
Between static contact, make the arc extinction between dynamic and static contact, thus shorten the amplification time of arc energy, realization is resolved
The short arcing of road device or without arcing, so as to substantially increase the ability of breaker disjunction AC and DC short circuit current flow, expands open circuit
The application range of device.
Brief description of the drawings
Fig. 1 is the "on" position schematic diagram of the utility model；
Fig. 2 is the separating brake momentary status schematic diagram of the utility model；
Fig. 3 is the separating brake completion status schematic diagram of the utility model；
Fig. 4 is insulation arc-extinguish chamber and armature combination diagram；
Fig. 5 is the top view of Fig. 4；
Fig. 6 is static contact 1 and shaft B combination diagrams；
Fig. 7 is the left view of Fig. 6；
Fig. 8 is yoke 3 and the appearance schematic diagram of armature 5；
Fig. 9 is the top view of Fig. 8；
Figure 10 is intelligent control module and magnetic flux buckle releaser schematic diagram of movements；
Each list of reference numerals is in figure：1st, static contact；2nd, moving contact；3rd, yoke；4th, an insulating shroud；5th, armature；6th, torsional spring；
7th, arc-chutes；8th, tripping mechanism；9th, stored energy mechanism；10th, intelligent control module and magnetic flux buckle releaser, CT, current transformer；A, sell
Axis；B, shaft.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
The utility model is to design one special insulation arc extinguishing machine of increase in omnipotent breaker (ACB) stationary contact rostral
, there is the moment of short-circuit current, circuit breaker intelligent controller module sends instantaneous trip instruction and action machine in circuit in structure
While structure snap action, an insulating shroud for the arc-extinguishing mechanism that insulate is rapidly inserted between dynamic and static contact, and moment plays efficient screen
Cover the effect of arc extinguishing.
Referring to Fig. 1~Figure 10, the utility model includes the static contact 1, moving contact 2, dropout being arranged in Shell of circuit breaker
Mechanism 8, stored energy mechanism 9, insulation arc-extinguishing mechanism, intelligent control module and magnetic flux buckle releaser 10, wherein, insulation arc-extinguishing mechanism includes
Yoke 3, an insulating shroud 4, armature 5, torsional spring 6 and shaft B.
Insulation arc-extinguishing mechanism uses casing structure, and an insulating shroud 4 is an assembly, an insulating shroud 4 and rank with armature 5
5 assembly of iron act as open mode clockwise (Fig. 1 positions) due to torsional spring 6, and an insulating shroud 4 is in dynamic and static contact
The lower section at place.Armature 5 and the assembly of an insulating shroud 4 can overcome under external force the elastic force of torsional spring 6 to static contact 1,
3 one side oscillation of yoke.When short-circuit current occurs in circuit, since 1 surrounding of static contact produces very strong electromagnetic field, yoke 3
Attract armature 5 after being magnetized, the assembly of armature 5 and an insulating shroud 4 overcomes the resistance of torsional spring 6 to static contact 1, yoke 3 one
Side is quickly swung, the delivering that the intelligent control module and magnetic flux buckle releaser 10 of Simultaneous Switching are gathered according to Current Transmit
Simultaneously snap action causes tripping mechanism 8 to act for instantaneous trip instruction, is opened rotationally clockwise around axis pin A in moving contact 2
Meanwhile an insulating shroud 4 is rapidly inserted between moving contact 2 and static contact 1 (Fig. 2 positions), rapid insulation shielding arc extinguishing is played
Effect.After short circuit current flow disappears, the attraction that armature 5 is subject to disappears therewith, and armature 5 and the assembly of an insulating shroud 4 are being turned round
The lower homing of elastic force effect of spring 6, breaker complete the process (Fig. 3 positions) of whole disjunction short circuit current flow.Arc-chutes 7 and storage
Energy mechanism 9 (being ripe design) is used as the remaining electric arc of extinguishing and combined floodgate energy storage.
The insulation arc-extinguishing mechanism of the utility model uses casing structure, and so-called casing structure refers to an insulating shroud 4 by cover
Face, the side wall of both sides and rear wall form semi-enclosed case, and armature 5 uses sheet ferromagnet, is fixed on rear wall top, rear wall
Lower part opening at shaft, the area of opening portion can account for the 30%-50% of the rear wall gross area, so can both reduce insulation
The resistance of the air in arc extinguishing action process of shielding case 4, spins up speed, and can guide remaining electric arc into arc-chutes.This
The thickness of the cover of utility model an insulating shroud 4 along vertical section is different, and center section is thicker, and thickness of two sides gradually subtracts
Few, maximum gauge is 5-10 millimeters, is made of the big insulating materials of dielectric constant.The shaft B of the utility model is used as insulation
4 rotating support shaft of shielding case, the axle center of shaft B should be vertical with dynamic and static contact midpoint line and be intersected, such arrangement,
Both sides arc length path can be made of substantially equal during arc extinguishing, the consequence for avoiding the uneven arc quenching effect triggered from weakening.This
The cover of utility model an insulating shroud 4 before and after the plane of symmetry also as extending.
The insulation arc-extinguishing mechanism of the utility model forms two-stage arc-control device, auxiliary as auxiliary extinction of arc mechanism and arc-chutes
Arc-extinguishing mechanism arc extinguishing when dynamic and static contact is not yet opened completely, and arc-chutes are then with good after dynamic and static contact is opened completely
Good extinguishing remnants arcings.
An insulating shroud 4 is using high intensity, heat safe engineering plastic materials.It can ensure effectively to divide as defined in product standard
The number (most 3 times) of disconnected short circuit current flow.
Since the arc-control device of ACB uses above technical scheme, following technological progress can be obtained：
1 can greatly improve the ability of product disjunction short circuit current flow；
2. it can achieve the purpose that AC and DC is general；
3. in disjunction short-circuit current, the further expansion of arc energy can be limited, so that the short of product can be realized
Arcing or without arcing.
Claims (5)
1. a kind of AC and DC omnipotent breaker with stronger arc quenching effect, including housing, static contact (1), moving contact
(2), operating mechanism, stored energy mechanism (9), magnetic flux buckle releaser and arc-chutes (7), it is characterized in that, insulation arc extinguishing is further included in composition
Mechanism, the insulation arc-extinguishing mechanism include an insulating shroud (4), armature (5) and yoke (3), and the yoke (3) is fixed on open circuit
The side of device static contact (1)；An insulating shroud (4) and armature (5) are located at the opposite side of static contact (1), an insulating shroud
(4) it is fixedly connected with armature (5) and gap between the moving contact (2) and static contact (1) of breaker is corresponding, insulation shielding
Two side plates for covering (4) are rotatablely connected by shaft (B) and static contact (1)；Between an insulating shroud (4) and static contact (1)
Equipped with torsional spring (6).
2. the AC and DC omnipotent breaker according to claim 1 with stronger arc quenching effect, it is characterized in that, institute
State torsional spring (6) and shaft (B) is respectively provided with two, they are symmetrically mounted on the both sides of circuit breaker static contact (1).
3. the AC and DC omnipotent breaker according to claim 1 or 2 with stronger arc quenching effect, its feature
It is that the width of an insulating shroud (4) is more than the width of static contact (1) and moving contact (2).
4. the AC and DC omnipotent breaker according to claim 3 with stronger arc quenching effect, it is characterized in that,
Tripping mechanism (8), intelligent control module and magnetic flux buckle releaser (10) are additionally provided with Shell of circuit breaker.
5. the AC and DC omnipotent breaker according to claim 4 with stronger arc quenching effect, it is characterized in that, institute
An insulating shroud (4) is stated to be fixed as one by screw with armature (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721057175.1U CN207303017U (en) | 2017-08-23 | 2017-08-23 | A kind of AC and DC omnipotent breaker with stronger arc quenching effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721057175.1U CN207303017U (en) | 2017-08-23 | 2017-08-23 | A kind of AC and DC omnipotent breaker with stronger arc quenching effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207303017U true CN207303017U (en) | 2018-05-01 |
Family
ID=62443411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721057175.1U Expired - Fee Related CN207303017U (en) | 2017-08-23 | 2017-08-23 | A kind of AC and DC omnipotent breaker with stronger arc quenching effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207303017U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107393779A (en) * | 2017-08-23 | 2017-11-24 | 河北宝凯电气股份有限公司 | A kind of AC/DC omnipotent breaker with stronger arc quenching effect |
-
2017
- 2017-08-23 CN CN201721057175.1U patent/CN207303017U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107393779A (en) * | 2017-08-23 | 2017-11-24 | 河北宝凯电气股份有限公司 | A kind of AC/DC omnipotent breaker with stronger arc quenching effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180501 Termination date: 20200823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |