CN209056406U - A kind of breaker with magnetic quenching structure - Google Patents

A kind of breaker with magnetic quenching structure Download PDF

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Publication number
CN209056406U
CN209056406U CN201920041780.2U CN201920041780U CN209056406U CN 209056406 U CN209056406 U CN 209056406U CN 201920041780 U CN201920041780 U CN 201920041780U CN 209056406 U CN209056406 U CN 209056406U
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CN
China
Prior art keywords
arc
arc extinguishing
iron core
static contact
magnetic
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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.)
Expired - Fee Related
Application number
CN201920041780.2U
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Chinese (zh)
Inventor
邹世聪
李云鹏
高庆松
丁全鑫
吴红石
徐伟
张桀
高东
李永钢
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邹世聪
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Priority to CN201920041780.2U priority Critical patent/CN209056406U/en
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Publication of CN209056406U publication Critical patent/CN209056406U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a kind of breakers with magnetic quenching structure, including static contact, static contact connecting cleat one end, the clamping plate other end is socketed moving contact, arc angle is led in installation on static contact, clamping plate installs magnetic blow-out iron core close to one end of static contact, winds blowout coil, clamping plate both ends mounting plate on magnetic blow-out iron core, guide rail is socketed between fixed plate, it is socketed sliding sleeve on guide rail, multiple arc extinguishing screens are socketed on sliding sleeve, guide rail is equipped with mobile mechanism close to one end of moving contact.Make to generate magnetic field in magnetic blow-out iron core by electric current in blowout coil, static contact and moving contact folding generate electric arc, electric arc is stretched by magnetic fields into being cooled down in arc extinguishing screen, extinguished, mobile mechanism drives arc extinguishing screen mobile so that electric arc is cut is distributed in multiple arc extinguishing screens, while arc quenching effect is more preferable, electric arc is also avoided to concentrate on certain arc extinguishing screens that component premature aging is caused to fail.

Description

A kind of breaker with magnetic quenching structure
Technical field
The utility model relates to technical field of electric power, specially a kind of breaker with magnetic quenching structure.
Background technique
Magnetic blast breaker is to be divided into a kind of breaker of arc extinction from the point of view of arc quenching principle using the effect in magnetic field Arc-chute chip, permanent magnetism revolve arc formula or air pressing type etc..Wherein arc extinguishing grating structure type is the simplest, has achieved more next extensive Application, current arc extinguishing grating structure only leaned on when arcing during arc extinguishing electric arc self-field power act on, magnetic blow-out effect it is weak, Arc motion speed is slow, and blow-out position concentrates on several grid of face static contact and moving contact contact point, leads to stationary contact Head, arc extinguishing grid pieces ablation are serious, thus it is proposed that a kind of breaker with magnetic quenching structure is for solving the above problems.
Utility model content
The purpose of this utility model is to provide a kind of breakers with magnetic quenching structure, to solve above-mentioned background skill The problem of being proposed in art.
To achieve the above object, the utility model provides the following technical solutions: a kind of open circuit with magnetic quenching structure Device, including static contact and moving contact, the stationary contact both sides of head are fixedly connected with one end of clamping plate, and the clamping plate other end is movably equipped with Moving contact, the static contact are fixedly mounted close to one end of moving contact and lead arc angle, and the clamping plate is solid between one end of static contact Dingan County fills magnetic blow-out iron core, and spiral winding blowout coil on the magnetic blow-out iron core, one end of the blowout coil is electrically connected by conducting wire The connecting terminal of line is tapped into, the other end is electrically connected with the current-carrying part of static contact, and the outer end of the moving contact is electrically connected leading-out wire Connecting terminal, fixed plate is fixedly mounted in both ends at the top of the clamping plate, and guide rail, the guide rail are fixedly attached between the fixed plate On be slidably socketed sliding sleeve, be fixedly attached multiple arc extinguishing screens on the sliding sleeve, the arc extinguishing screen, which is located at, leads above arc angle, The guide rail is equipped with mobile mechanism close to one end of moving contact.
Preferably, the blowout coil surface is fixed is enclosed with insulating coating, and the arc angle of leading is trigone wimble structure.
Preferably, the mobile mechanism includes driving iron core, and driving is fixedly mounted in the fixed plate two sides at the moving contact Iron core, spiral winding driving coil on the driving iron core, the driving coil are connected in series to blowout coil by conducting wire electrical connection Between static contact, iron plate is fixedly mounted on the arc extinguishing screen of the driving iron core, and iron plate face drives iron core, it is described It is socketed spring on guide rail at driving iron core, and both ends of the spring is respectively fixedly connected with the arc extinguishing screen and fixed plate of the rightmost side.
Preferably, the sliding sleeve inner wall is provided with limiting slot, and limited block, the limited block is fixedly mounted in the guide rail outer wall Sliding is connected in limiting slot, and limited block and limiting slot are the square structure matched.
Preferably, the arc extinguishing screen is insulation rectangular parallelepiped structure, and the arc extinguishing screen outer wall is provided with concave arc structure Arc extinguishing face, the adjacent arc extinguishing face constitutes the arc-chutes that spacing is gradually reduced from the bottom up.
Compared with prior art, the utility model has the beneficial effects that blowout coil is connected with static contact and moving contact, magnetic Blowing makes to generate magnetic field in magnetic blow-out iron core by electric current in coil, and electric current transmits almost in the conductor when static contact is connected to moving contact Not by magnetic fields, electric arc is stretched by magnetic fields when disconnection and arc root bit transition is to leading in arc angle, can be avoided stationary contact Head is burnt;Electric arc enters in arc extinguishing screen after elongating, while driving coil generates variation when moving contact and static contact open and close Electric current under the influence of, cause to drive the magnetic field size variation of iron core to change the suction of iron plate so that arc extinguishing screen is mobile, Multiple arc extinguishing screens cut electric arc, so that electric arc is contacted with more arc extinguishing screens, while movement can also play cooling The effect of heat dissipation reduces the risk that arc extinguishing screen is burnt;Arc extinguishing screen is insulation rectangular parallelepiped structure, and arc extinguishing screen outer wall is provided with interior The arc extinguishing face of concave arc shape structure increases the contact area of electric arc and arc extinguishing screen, accelerates blow-out speed, adjacent arc extinguishing face composition from Under arc-chutes that up spacing is gradually reduced enter arc-chutes so that arc-chute board bottom portion is relatively thin convenient for electric arc, also facilitate air Cooling and heat dissipation is convenient in circulation.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model;
Fig. 2 is main view the schematic diagram of the section structure at the utility model arc extinguishing screen;
Fig. 3 is the utility model arc extinguishing grid plate structure schematic diagram.
In figure: arc angle, 7 fixed plates, 8 movements are led in 1 static contact, 2 moving contacts, 3 clamping plates, 4 magnetic blow-out iron cores, 5 blowout coils, 6 Mechanism, 81 driving iron cores, 82 driving coils, 83 springs, 84 iron plates, 9 guide rails, 10 sliding sleeves, 11 arc extinguishing screens, 12 limiting slots, 13 limited blocks, 14 arc extinguishing faces, 15 arc-chutes, 16 connecting terminals.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of breaker with magnetic quenching structure, Including static contact 1 and moving contact 2,1 two sides of static contact are fixedly connected with one end of clamping plate 3, and 3 other end of clamping plate is movably equipped with moving contact 2, moving contact 2 can be to be pulled to realize and separate with static contact 1 horizontally to the right, is also possible to rotation realization and is divided with static contact 1 It is that identical can choose that use (be only that schematic diagram display position is closed in attached drawing according to actual needs from, two ways principle The effect of system, moving contact 2 will not touch arc extinguishing screen 11 upwards), static contact 1 is fixedly mounted close to one end of moving contact 2 and leads Arc angle 6 leads 6 trigone wimble structure of arc angle, so that electric arc is moved along leading arc angle 6, and leads arc angle 6 not and influences moving contact 2 and static contact 1 Folding (can be discharged from there according to point discharge principle electric arc), magnetic blow-out is fixedly mounted between one end of static contact 1 in clamping plate 3 Iron core 4, spiral winding blowout coil 5 on magnetic blow-out iron core 4,5 surface of the blowout coil fixation are enclosed with insulating coating, the magnetic The one end for blowing coil 5 is electrically connected the connecting terminal 16 of inlet wire by conducting wire, this connecting terminal 16 is another for connecting external circuit End is electrically connected (part on 1 left side of static contact as shown in Figure 1 is package insulating materials) with the current-carrying part of static contact 1, and institute The outer end for stating moving contact 2 is electrically connected the connecting terminal 16 of leading-out wire, for connecting external circuit, after static contact 1 is connected with moving contact 2 Realize circuit communication, fixed plate 7 is fixedly mounted in 3 top both ends of clamping plate, and guide rail 9 is fixedly attached between fixed plate 7, is slided on guide rail 9 It is dynamic to be socketed sliding sleeve 10, multiple arc extinguishing screens 11 are fixedly attached on sliding sleeve 10, arc extinguishing screen 11, which is located at, leads 6 top of arc angle, leads Rail 9 is equipped with mobile mechanism 8 close to one end of moving contact 2, is to connect between blowout coil 5 and static contact 1, moving contact 2, magnetic blow-out Make to generate magnetic field in magnetic blow-out iron core 4 by electric current in coil 5, magnetic field is transferred to 2 top of static contact 1 and moving contact by clamping plate 3 In space, when static contact 1 and the folding of moving contact 2 generate electric arc, electric arc is stretched by magnetic fields, while being entered after electric arc elongation Being cooled down in arc extinguishing screen 11, is extinguished, mobile mechanism 8 drives arc extinguishing screen 11 mobile, and there is dissection, facilitate arc extinguishing, But also electric arc is distributed in multiple arc extinguishing screens 11, avoiding same arc extinguishing screen 11 from contacting multiple electric arcs causes to burn.
Mobile mechanism 8 includes driving iron core 81, and driving iron core 81, driving is fixedly mounted in 7 two sides of fixed plate at moving contact 2 Spiral winding driving coil 82 on iron core 81, the driving coil 82 are connected in series to blowout coil 5 and stationary contact by conducting wire electrical connection Between first 1 (and using concatenated mode), iron plate 84, and iron plate are fixedly mounted on the arc extinguishing screen 11 of driving iron core 81 84 faces drive iron core 81, drive iron core 81 at guide rail 9 on be socketed spring 83, and 83 both ends of spring be respectively fixedly connected with it is most right The arc extinguishing screen 11 and fixed plate 7 of side, driving coil 82 are equally connected with static contact 1 and moving contact 2, so that driving iron core 81 produces Magnetisation field adsorpting iron plate 84, the compression savings potential energy of spring 83, usually 2 stable connection of static contact 1 and moving contact, driving iron core 81 produce Raw stable magnetic field adsorpting iron plate 84 and 83 Spring balanced of spring, when static contact 1 and moving contact 2 open and close, flow through static contact 1, The curent change of moving contact 2 and driving coil 82 then drives the magnetic field size variation in iron core 81, drives iron core 81 to iron plate 84 Adsorption capacity variation so that spring 83 discharges potential energy and pushes arc extinguishing screen 11 mobile, so that electric arc be cut and be distributed to multiple Arc extinguishing is carried out between arc extinguishing screen 11, after moving contact 2 and static contact 1 are steadily contacted, electric current is stablized, and driving iron core 81 generates Stable adsorpting iron plate 84 and 83 Spring balanced of spring, device reset again in magnetic field, specification when need the electric current base of arc extinguishing This is all larger, so blowout coil 5 and driving coil 82 do not need too many number of turns.
10 inner wall of sliding sleeve is provided with limiting slot 12, and limited block 13 is fixedly mounted in 9 outer wall of guide rail, and the sliding of limited block 13 is connected to In limiting slot 12, and limited block 13 and limiting slot 12 are the square structure matched, are limited to sliding sleeve 10.
Arc extinguishing screen 11 is insulation rectangular parallelepiped structure, and 11 outer wall of arc extinguishing screen is provided with the arc extinguishing face 14 of concave arc structure, Increase the contact area of electric arc and arc extinguishing screen 11, accelerate blow-out speed, spacing is gradually from the bottom up for adjacent arc extinguishing face 14 composition Reduced arc-chutes 15 enter arc-chutes 15 so that 11 bottom of arc extinguishing screen is relatively thin convenient for electric arc, while also contributing to air stream Logical cooling arc extinguishing.
Working principle: when the utility model is used, blowout coil 5 is connected with static contact 1 and moving contact 2, in blowout coil 5 Making to generate magnetic field in magnetic blow-out iron core 4 by electric current, electric arc is stretched by magnetic fields and arc root bit transition is to leading in arc angle 6, Electric arc enters in arc extinguishing screen 11 after elongating, while driving coil 82 is equally connected with static contact 1 and moving contact 2, so that driving Iron core 81 generates magnetic field adsorpting iron plate 84, and the compression savings potential energy of spring 83, usually 2 stable connection of static contact 1 and moving contact, drives The stable magnetic field adsorpting iron plate 84 and 83 Spring balanced of spring that iron core 81 generates, when static contact 1 and the folding of moving contact 2, electric arc Presence flow through the curent change of static contact 1, moving contact 2 and driving coil 82, then drive the magnetic field size variation in iron core 81, Iron core 81 is driven to change the adsorption capacity of iron plate 84, so that spring 83 discharges potential energy and pushes arc extinguishing screen 11 mobile, thus by electric Arc cutting is evenly distributed in arc extinguishing screen 11;After moving contact 2 and static contact 1 are steadily contacted, electric current is stablized, and drives iron core Stable adsorpting iron plate 84 and 83 Spring balanced of spring, device reset again in 81 magnetic fields generated.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of breaker with magnetic quenching structure, including static contact (1) and moving contact (2), it is characterised in that: described quiet Contact (1) two sides are fixedly connected with one end of clamping plate (3), and clamping plate (3) other end is movably equipped with moving contact (2), the stationary contact Head (1) is fixedly mounted close to the one end of moving contact (2) and leads arc angle (6), and the clamping plate (3) is solid between the one end of static contact (1) Dingan County fills magnetic blow-out iron core (4), spiral winding blowout coil (5) on the magnetic blow-out iron core (4), one end of the blowout coil (5) The connecting terminal (16) of inlet wire is electrically connected by conducting wire, the other end is electrically connected with the current-carrying part of static contact (1), and the dynamic touching The outer end of head (2) is electrically connected the connecting terminal (16) of leading-out wire, and fixed plate (7), institute is fixedly mounted in both ends at the top of the clamping plate (3) It states and is fixedly attached guide rail (9) between fixed plate (7), be slidably socketed sliding sleeve (10) on the guide rail (9), on the sliding sleeve (10) Multiple arc extinguishing screens (11) are fixedly attached, the arc extinguishing screen (11), which is located at, leads above arc angle (6), and the guide rail (9) is close to dynamic One end of contact (2) is equipped with mobile mechanism (8).
2. a kind of breaker with magnetic quenching structure according to claim 1, it is characterised in that: the blowout coil (5) surface is fixed is enclosed with insulating coating, and described lead arc angle (6) are trigone wimble structure.
3. a kind of breaker with magnetic quenching structure according to claim 1, it is characterised in that: the mobile mechanism It (8) include driving iron core (81), driving iron core (81), the drive is fixedly mounted in fixed plate (7) two sides at the moving contact (2) Spiral winding driving coil (82) in dynamic iron core (81), the driving coil (82) are connected in series to blowout coil by conducting wire electrical connection (5) between static contact (1), iron plate (84) are fixedly mounted on the arc extinguishing screen (11) of driving iron core (81), and iron Piece (84) face drives iron core (81), is socketed spring (83) on the guide rail (9) at driving iron core (81), and spring (83) two End is respectively fixedly connected with the arc extinguishing screen (11) and fixed plate (7) of the rightmost side.
4. a kind of breaker with magnetic quenching structure according to claim 1, it is characterised in that: the sliding sleeve (10) inner wall is provided with limiting slot (12), and limited block (13) are fixedly mounted in guide rail (9) outer wall, limited block (13) the sliding card It connects in limiting slot (12), and limited block (13) and limiting slot (12) are the square structure matched.
5. a kind of breaker with magnetic quenching structure according to claim 1, it is characterised in that: the arc extinguishing screen It (11) is insulation rectangular parallelepiped structure, arc extinguishing screen (11) outer wall is provided with the arc extinguishing face (14) of concave arc structure, adjacent institute It states arc extinguishing face (14) and constitutes the arc-chutes (15) that spacing is gradually reduced from the bottom up.
CN201920041780.2U 2019-01-10 2019-01-10 A kind of breaker with magnetic quenching structure Expired - Fee Related CN209056406U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920041780.2U CN209056406U (en) 2019-01-10 2019-01-10 A kind of breaker with magnetic quenching structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920041780.2U CN209056406U (en) 2019-01-10 2019-01-10 A kind of breaker with magnetic quenching structure

Publications (1)

Publication Number Publication Date
CN209056406U true CN209056406U (en) 2019-07-02

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110400720A (en) * 2019-07-30 2019-11-01 西南交通大学 A kind of arc-control device based on section insulator
CN114068239A (en) * 2021-11-10 2022-02-18 深圳市美韵声科技有限公司 Intelligent breaker for safely closing power consumption of power distribution system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110400720A (en) * 2019-07-30 2019-11-01 西南交通大学 A kind of arc-control device based on section insulator
CN110400720B (en) * 2019-07-30 2020-06-23 西南交通大学 Arc control device based on segmentation insulator
CN114068239A (en) * 2021-11-10 2022-02-18 深圳市美韵声科技有限公司 Intelligent breaker for safely closing power consumption of power distribution system
CN114068239B (en) * 2021-11-10 2022-12-06 深圳市美韵声科技有限公司 Intelligent breaker for safe closing of power consumption of power distribution system

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20190702

Termination date: 20200110