CN106057602B - A kind of constructional device for improving contact breaking capacity - Google Patents
A kind of constructional device for improving contact breaking capacity Download PDFInfo
- Publication number
- CN106057602B CN106057602B CN201610650684.9A CN201610650684A CN106057602B CN 106057602 B CN106057602 B CN 106057602B CN 201610650684 A CN201610650684 A CN 201610650684A CN 106057602 B CN106057602 B CN 106057602B
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- China
- Prior art keywords
- contact
- supporter
- spring
- breaking capacity
- main structure
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Classifications
-
- 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
- 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
- H01H73/04—Contacts
- H01H73/045—Bridging contacts
-
- 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
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
A kind of constructional device for improving contact breaking capacity belongs to electrical contact systems technology field, more particularly to a kind of constructional device for improving contact breaking capacity.The present invention provides a kind of constructional device for the raising contact breaking capacity that opening velocity is fast, arc quenching effect is good.The present invention includes main structure body, moving contact, repulsion striking bridge, static contact, magnetic blow-out, contact supporter, touch spring, spring support, resetting apparatus, yoke, shrapnel, its structural feature moving contact is arranged on the upper end of contact supporter, repulsion striking bridge is arranged on moving contact upper end, spring support, which can slide up and down, to be arranged in contact supporter and is connected with lower reset contact spring, and spring support upper end is connected with moving contact；Yoke top is fixed with contact supporter lower end.
Description
Technical field
The invention belongs to electrical contact systems technology field, more particularly to a kind of structure dress for improving contact breaking capacity
Put.
Background technology
In the low-pressure electronic equipment products such as control and protective switch, the special contactor of special operation condition occasion and motor protector,
For frequent operation, height is required to electric life and short circuit breaking capacity, electric arc caused by disjunction damages directly caused by contact
Connecing influences the electric life of product, uses double breaking points clapper-type structure more, and faster disjunction speed is needed during the specified stream of disjunction
Degree and efficient arc extinguishing ability, can achieve the purpose that frequent operation and higher reliability.But in disjunction short circuit current flow, it is necessary to have
Sufficiently large clearance between open contacts, by the longer of electric arc drawing, so easy to arc extinguishing, and increasing clearance between open contacts causes product structure and volume
Corresponding increase, the long division speed of product actuating length are accordingly slack-off, there is provided the mechanism power consumption of power accordingly increases, while reduces production
The electric life of product, the production manufacture cost greatly improved；And the effect played also unobvious, can not meet today's society
To control and protective switch, the use of the low-pressure electronic equipment product such as the special contactor and motor protector of special operation condition occasion will
Ask.
The content of the invention
The present invention addresses the above problem, there is provided the raising contact disjunction energy that a kind of opening velocity is fast, arc quenching effect is good
The constructional device of power.
To achieve the above object, the present invention adopts the following technical scheme that, the present invention includes main structure body, moving contact, repulsion
Striking bridge, static contact, magnetic blow-out, contact supporter, touch spring, spring support, resetting apparatus, yoke, shrapnel, its structural feature
Moving contact is arranged on the upper end of contact supporter, and repulsion striking bridge is arranged on moving contact upper end, and spring support can slide up and down
It is arranged in contact supporter and is connected with lower reset contact spring, spring support upper end is connected with moving contact；Yoke top with
Contact supporter lower end is fixed.
It is placed in the vertical hole in the middle part of main structure body in the middle part of the contact supporter, is set on the main structure body below moving contact
Static contact is equipped with, the magnetic blow-out is set on the inside of static contact.
The resetting apparatus is arranged on contact supporter lower end sidepiece, resetting apparatus upper end with the main structure body lower end
Portion's groove floor offsets.
As a preferred embodiment, resetting apparatus of the present invention includes being arranged on the vertical of contact supporter lower end sidepiece
Groove, vertical groove bottom surface middle part are provided with boss, and boss periphery is cased with resetting spring, reset top shell is buckled with resetting spring,
Top shell upper end is resetted to offset with the main structure body lower end central slot bottom surface.
As another preferred solution, spring support of the present invention includes upper end transverse slat and both sides riser, the contact
Supporter top is hollow mullion structure, and mullion structure upper center is concave configuration, and lower concave part both sides are and mullion structure
The socket of hollow bulb connection, both sides riser lower end are placed in hollow bulb by socket, and transverse slat is placed in above lower concave part；Riser lower end
For upper crotch structure, the touch spring is placed on both sides between crotch, and upper crotch stretches into touch spring lower end inside, contact bullet
Spring upper end offsets with lower concave part lower end.
As another preferred solution, reset top shell both sides of the present invention are provided with cross spacing block, vertical groove two
Side is provided with vertical bar shape limiting slot corresponding to limited block；Reset top shell upper end and be provided with horizontal stripe shape limiting slot, main structure body lower end
Central slot bottom surface is provided with horizontal stripe shape spacing block set corresponding to horizontal stripe shape limiting slot.
As another preferred solution, contact supporter lower end of the present invention is provided with link slot, and yoke top is placed in
In link slot, lateral connection hole is correspondingly arranged on yoke top and connection cell wall, connection shrapnel is installed with lateral connection hole.
Secondly, static contact of the present invention be transversely U-shaped body, and magnetic blow-out is arranged on the inside of U-shaped body, magnetic blow-out for in U-shaped body
The corresponding U-shaped metallic plate in side.
In addition, repulsion striking bridge both ends of the present invention are elevation structure, to be corresponding with elevation structure on the outside of static contact
Run-on tab.
Beneficial effect of the present invention.
Electric current is bigger when feature of the present invention is breaking current or disjunction short circuit current flow, and clearance between open contacts equally accordingly increase, institute
Also accordingly lengthened with producing the length of electric arc elongation, using extinguishing electric arc, after arc extinction Renew theory open away from device, have
Opening velocity is fast, and arc quenching effect is well especially in short circuit condition arc extinguishing.
The present invention utilize current characteristics, the characteristics of producing electrodynamic repulsion force, contact in electric current under conditions of, static contact and
Magnetic blow-out, moving contact form galvanic circle with repulsion striking bridge and electric arc, produce the effect of repulsion, breaking current or disjunction short circuit electricity
The bigger repulsion of electric current is stronger during stream, and yoke and contact supporter act power, causes the resetting spring of resetting apparatus to shrink and becomes
Shape, makes clearance between open contacts to increase the resetting spring contraction distortion amount of corresponding resetting apparatus on the basis of original theory is driveed away from position
Highly, also accordingly elongated so causing to produce the length that electric arc elongates, be more advantageous to breaking arc, after arc extinction, electronic reprimand
Power event resolves, disappear in the active force of yoke and contact supporter, the resetting spring of resetting apparatus can not be kept to be maintained at receipts
Compression deformation state, returns to initial position, and clearance between open contacts are returned to theory and drive away from position, beneficial to contact closure, and dynamic/static contact
Damage it is smaller, electric life length can frequent breaking current, reduce power consumption reduce small product size and structure at the same time.Meet control and protect
The low-pressure electronic equipment products such as shield switch, the special contactor and motor protector of special operation condition occasion, it is short in breaking current or disjunction
Functional Requirement and the short-circuit protection requirement of road electric current.
Brief description of the drawings
The present invention will be further described with reference to the accompanying drawings and detailed description.The scope of the present invention not only limits to
In the statement of herein below.
Fig. 1 is the structure diagram that the present invention provides embodiment, improves the electrodynamic repulsion force clearance between open contacts of contact breaking capacity
And resetting apparatus.
Fig. 2 is i.e. separating brake mistake in the electrodynamic repulsion force clearance between open contacts and resetting apparatus motion process for improve contact breaking capacity
Journey schematic diagram.
Fig. 3 is reseting procedure figure after the electrodynamic repulsion force clearance between open contacts and resetting apparatus arc extinguishing for improving contact breaking capacity.
Fig. 4 is the arc quenching system structure diagram using the present invention with high breaking capacity.
Fig. 5 is contact supporter, spring support and touch spring mounting means schematic diagram.
Fig. 6 is resetting apparatus connecting installation structure schematic diagram of the present invention.
Embodiment
As shown in the figure, the present invention includes main structure body 13, moving contact 3, repulsion striking bridge 4, static contact 5, magnetic blow-out 7, contact
Supporter 8, touch spring 9, spring support 10, resetting apparatus, yoke 14, shrapnel 22, moving contact 3 are arranged on contact supporter 8
Upper end, repulsion striking bridge 4 is arranged on 3 upper end of moving contact, and spring support 10, which can slide up and down, to be arranged in contact supporter 8
And lower reset contact spring 9 is connected with, 10 upper end of spring support is connected with moving contact 3；Under 14 top of yoke and contact supporter 8
End is fixed.
The middle part of contact supporter 8 is placed in the vertical hole at the middle part of main structure body 13, the main structure body of the lower section of moving contact 3
Static contact 5 is provided with 13, the inner side of static contact 5 sets the magnetic blow-out 7.
The spring support 10 includes upper end transverse slat 16 and both sides riser 17, and 8 top of contact supporter is hollow
Mullion structure, mullion structure upper center are concave configuration, and lower concave part both sides are the socket connected with mullion structure hollow bulb 19
18, riser 17 lower end in both sides is placed in hollow bulb 19 by socket 18, and transverse slat 16 is placed in above lower concave part；17 lower end of riser is upper
20 structure of crotch, the touch spring 9 are placed on both sides between crotch 20, and upper crotch 20 stretches into 9 lower end inside of touch spring, are touched
Head 9 upper end of spring offsets with lower concave part lower end.
The resetting apparatus includes being arranged on the vertical groove of 8 lower end sidepiece of contact supporter, vertical groove bottom surface middle part
Boss is provided with, boss periphery is cased with resetting spring 24, and cylindric reset top shell 23 is buckled with resetting spring 24, resets top shell 23
Upper end offsets with the 13 lower end central slot bottom surface of main structure body.Resetting apparatus is installed on contact supporter 8, in electronic reprimand
Under power effect, the actuating length of contact supporter 8 is increased, promotes resetting spring 24 to shrink, reached and improve contact breaking capacity
Purpose, after electrodynamic repulsion force disappearance, resetting spring 24 automatically resets.
23 both sides of the reset top shell are provided with cross spacing block, and vertical groove both sides are provided with vertical bar corresponding to limited block
Shape limiting slot；Reset 23 upper end of top shell and be provided with horizontal stripe shape limiting slot, 13 lower end central slot bottom surface of main structure body is corresponding to horizontal stroke
Strip limiting slot is provided with horizontal stripe shape spacing block set.
8 lower end of contact supporter is provided with link slot 21, and 14 top of yoke is placed in link slot 21,14 top of yoke
Lateral connection hole is correspondingly arranged on on connection cell wall, connection shrapnel 22 is installed with lateral connection hole.
The static contact 5 is transversely U-shaped body, and magnetic blow-out 7 is arranged on the inside of U-shaped body, and magnetic blow-out 7 is corresponding with the inside of U-shaped body
U-shaped metallic plate.
4 both ends of repulsion striking bridge are elevation structure, and the outside of static contact 5 is and the corresponding run-on tab of elevation structure
12.Elongated easy to electric arc at the both ends elevation angle.
Gas-blast device 6 is provided between the static contact 5 and moving contact 3,4 both sides of repulsion striking bridge are provided with
Arc extinguishing grid pieces group 2.13 upper end of main structure body is covered with arc-extinguish chamber 1, the moving contact 3, repulsion striking bridge 4, static contact 5, magnetic
Blow 7, arc extinguishing grid pieces group 2 to be arranged in arc-extinguish chamber 1, being provided with striking passage 15 on the arc-extinguish chamber 1 in the outside of arc extinguishing grid pieces group 2 enters
Mouthful, 15 entrance of striking passage goes out to be provided with vertical suction arc baffle 11.Gas-blast device 6 decomposites a large amount of insulating gas, slows down
The sustainable growth of electric arc variable and the effect of burning, while chamber pressure is formed, accelerate push-in arc extinguishing grid pieces group 2 to carry out segment on electric arc cold
But extinguish, and the metallic vapour or conducting metal particles that breaking arc is produced introduce the striking mouth passage of arc-extinguish chamber 1.Entrance position
Put installation and inhale arc baffle 11, metallic particles is adsorbed under high temperature action on arc baffle 11 is inhaled, and residual gas is at a high speed from arc-extinguish chamber 1
Striking passage 15 discharge, complete the whole process of disjunction.
The suction arc baffle 11 is from top to bottom evenly distributed with multiple horizontal bar holes.
Illustrate the course of work of the present invention below in conjunction with the accompanying drawings.
During contact closure, yoke 14 drive moving contact 3, repulsion striking bridge 4, touch spring 9, spring support 10 complete with it is quiet
5 connection procedure of contact.When contact disconnects, yoke 14 is with 3 supporter of moving contact, moving contact 3, repulsion striking bridge 4, touch spring 9,
Spring support 10 disconnects rapidly, reaches theory and drives away from position, causes contact supporter 8 to rest on resetting apparatus initial position.
When contact have electric current or short circuit current flow by when, contact disconnect when, using current characteristics, make static contact 5 and magnetic blow-out
7, moving contact 3 forms the structure of galvanic circle with repulsion striking bridge 4 and electric arc, produces electrodynamic repulsion force, and band static magnetic yokes 14 are accelerated to touch
The speed that head disconnects, the weight that lower yoke 14 and correlated parts are acted in electrodynamic repulsion force are accelerated contact disconnection, are acted at the same time
Power, causes 24 contraction distortion of resetting spring of resetting apparatus, clearance between open contacts is increased on the basis of original theory is driveed away from position
The height of 24 contraction distortion amount of corresponding resetting spring.
Moment generation electric arc is disconnected in contact, will not disappear in electrodynamic repulsion force before arc extinction, make answering for resetting apparatus
Position spring 24 is maintained at contraction distortion state, ensures that clearance between open contacts are maximum, beneficial to extinguishing electric arc.After arc extinction, electronic reprimand
Power event resolves, disappear in the active force of yoke 14 and contact supporter 8, the resetting spring 24 of resetting apparatus can not be kept to be in
Contraction distortion amount state, the resetting spring 24 of resetting apparatus return to initial position, and clearance between open contacts are returned to theory and drive away from position,
Utilize contact closure.
It is understood that above with respect to the specific descriptions of the present invention, it is merely to illustrate the present invention and is not limited to this
The described technical solution of inventive embodiments, it will be understood by those of ordinary skill in the art that, still the present invention can be carried out
Modification or equivalent substitution, to reach identical technique effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (4)
1. a kind of constructional device for improving contact breaking capacity, including main structure body, moving contact, repulsion striking bridge, static contact, magnetic
Blow, contact supporter, touch spring, spring support, resetting apparatus, yoke, shrapnel, it is characterised in that moving contact is arranged on contact
The upper end of supporter, repulsion striking bridge are arranged on moving contact upper end, and spring support, which can slide up and down, is arranged on contact supporter
Interior and be connected with touch spring, spring support upper end is connected with moving contact；Yoke top is fixed with contact supporter lower end；
It is placed in the vertical hole in the middle part of main structure body in the middle part of the contact supporter, is provided with the main structure body below moving contact
Static contact, static contact inner side set the magnetic blow-out；
The resetting apparatus is arranged on contact supporter lower end sidepiece, and resetting apparatus upper end and main structure body lower end middle part are recessed
Groove bottom offsets；
The resetting apparatus includes being arranged on the vertical groove of contact supporter lower end sidepiece, is provided with the middle part of vertical groove bottom surface
Boss, boss periphery are cased with resetting spring, and reset top shell is buckled with resetting spring, reset under top shell upper end and the main structure body
End central slot bottom surface offsets；
The reset top shell both sides are provided with cross spacing block, and it is spacing that vertical groove both sides corresponding to limited block are provided with vertical bar shape
Groove；Reset top shell upper end and be provided with horizontal stripe shape limiting slot, main structure body lower end central slot bottom surface corresponds to horizontal stripe shape limiting slot
It is provided with horizontal stripe shape spacing block set；
The spring support includes upper end transverse slat and both sides riser, and the contact supporter top is hollow mullion structure, erects
Mount structure upper center is concave configuration, and lower concave part both sides are the socket connected with mullion structure hollow bulb, both sides riser lower end
It is placed in by socket in hollow bulb, transverse slat is placed in above lower concave part；Riser lower end is upper crotch structure, and the touch spring is placed in
On both sides between crotch, upper crotch stretches into touch spring lower end inside, and touch spring upper end offsets with lower concave part lower end.
2. a kind of constructional device for improving contact breaking capacity according to claim 1, it is characterised in that the contact is supported
Part lower end is provided with link slot, and yoke top is placed in link slot, is correspondingly arranged on yoke top and connection cell wall and laterally connects
Hole is connect, lateral connection is installed with shrapnel in hole.
3. a kind of constructional device for improving contact breaking capacity according to claim 1, it is characterised in that the static contact is
Transversely U-shaped body, magnetic blow-out are arranged on the inside of U-shaped body, and magnetic blow-out is and corresponding U-shaped metallic plate on the inside of U-shaped body.
A kind of 4. constructional device for improving contact breaking capacity according to claim 1, it is characterised in that the repulsion striking
Bridge both ends are elevation structure, are and the corresponding run-on tab of elevation structure on the outside of static contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610650684.9A CN106057602B (en) | 2016-08-10 | 2016-08-10 | A kind of constructional device for improving contact breaking capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610650684.9A CN106057602B (en) | 2016-08-10 | 2016-08-10 | A kind of constructional device for improving contact breaking capacity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106057602A CN106057602A (en) | 2016-10-26 |
| CN106057602B true CN106057602B (en) | 2018-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610650684.9A Active CN106057602B (en) | 2016-08-10 | 2016-08-10 | A kind of constructional device for improving contact breaking capacity |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108389742A (en) * | 2018-04-27 | 2018-08-10 | 福州大学 | Reinforce the method that arc gap arc blow-out magnetic flux improves electric appliance arc extinguishing ability |
| CN111521931B (en) * | 2020-05-22 | 2024-05-31 | 福州大学 | Contact material simulation test device based on vortex repulsive force mechanism and working method thereof |
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| CN205039120U (en) * | 2015-10-08 | 2016-02-17 | 德力西电气有限公司 | Novel alternating current contactor |
| CN205944000U (en) * | 2016-08-10 | 2017-02-08 | 李蕊名 | Improve contact breaking capacity's constructional device |
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| JP6446643B2 (en) * | 2015-02-02 | 2019-01-09 | 株式会社生方製作所 | High voltage DC power shut-off device |
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| CN2580591Y (en) * | 2002-10-28 | 2003-10-15 | 李恩涛 | Permanent magnet holding contactor |
| CN1988093A (en) * | 2006-11-21 | 2007-06-27 | 西安交通大学 | Permanent magnet mechanism contactor with parallel magnetic path |
| CN201163581Y (en) * | 2007-12-30 | 2008-12-10 | 人民电器集团有限公司 | Arc-extinguishing device of AC contactor |
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| Publication number | Publication date |
|---|---|
| CN106057602A (en) | 2016-10-26 |
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