CN106057602A - Structure apparatus capable of improving contact breaking capacity - Google Patents
Structure apparatus capable of improving contact breaking capacity Download PDFInfo
- Publication number
- CN106057602A CN106057602A CN201610650684.9A CN201610650684A CN106057602A CN 106057602 A CN106057602 A CN 106057602A CN 201610650684 A CN201610650684 A CN 201610650684A CN 106057602 A CN106057602 A CN 106057602A
- Authority
- CN
- China
- Prior art keywords
- contact
- spring
- breaking capacity
- supporter
- moving
- 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
- 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 structure apparatus capable of improving a contact breaking capacity belongs to the electrical contact system technology field and the invention especially relates to the structure apparatus capable of improving the contact breaking capacity. By using the structure apparatus capable of improving the contact breaking capacity, an opening speed is fast and an arc extinguishing effect is good. The apparatus comprises a structure main body, a moving contact, a repulsion striking arc bridge, a static contact, magnetic blowout, a contact support component, a contact spring, a spring support, a reset device, a magnet yoke and a spring sheet. The structure is characterized in that the moving contact is arranged on an upper end of the contact support component; the repulsion striking arc bridge is arranged on an upper end of the moving contact; the spring support can be slidingly arranged in the contact support component in an up and down mode and is connected to a lower reset contact spring; an upper end of the spring support is connected to the moving contact; and an upper portion of the magnet yoke is fixed to a lower end of the contact support component.
Description
Technical field
The invention belongs to electrical contact systems technology field, particularly relate to a kind of structure dress 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, electric life and short circuit breaking capacity being required height, the damage that contact is caused by the electric arc produced during disjunction is straight
Connect the electric life affecting product, many employing double breaking points clapper-type structures, during the specified stream of disjunction, need the speed of disjunction faster
Degree and efficient arc extinguishing ability, can reach the purpose of frequent operation and higher reliability.But when disjunction short circuit current, it is desirable to have
Sufficiently large clearance between open contacts, that is drawn by electric arc is longer, is so easy to arc extinguishing, and strengthens clearance between open contacts and cause product structure and volume
Corresponding increase, product actuating length length deciliter speed is the most slack-off, it is provided that mechanism's power consumption of power strengthens accordingly, reduces product simultaneously
The electric life of product, the production manufacturing cost being greatly improved；And the effect that plays is the most inconspicuous, can not meet society
To control and protective switch, the use of the low-pressure electronic equipment products such as the special contactor of special operation condition occasion and motor protector is wanted
Ask.
Summary of the invention
The present invention is aiming at the problems referred to above, it is provided that the raising contact disjunction energy that a kind of opening velocity is fast, arc quenching effect is good
The constructional device of power.
For achieving 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 means, yoke, shell fragment, 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
Being arranged in contact supporter and connect and have 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 middle part of described contact supporter in the vertical hole in the middle part of main structure body, the main structure body below moving contact sets
It is equipped with static contact, described magnetic blow-out is set inside static contact.
Described resetting means is arranged in contact supporter lower end sidepiece, resetting means upper end and described main structure body lower end
Portion's groove floor offsets.
As a kind of preferred version, resetting means of the present invention includes being arranged on the vertical of contact supporter lower end sidepiece
Groove, is provided with boss in the middle part of vertical groove floor, boss periphery is cased with back-moving spring, and back-moving spring is buckled with reset top shell,
Reset top shell upper end offsets with central slot bottom surface, described main structure body lower end.
As another kind of preferred version, spring support of the present invention includes upper end transverse slat and both sides riser, described contact
Supporter top is the mullion structure of hollow, and mullion structure upper center is concave configuration, and lower concave part both sides are and mullion structure
The socket of hollow bulb connection, riser lower end, both sides is placed in hollow bulb by socket, and transverse slat is placed in above lower concave part；Riser lower end
For upper crotch structure, described 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 kind of preferred version, 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 stopper slot corresponding to limited block；Reset top shell upper end is provided with horizontal stripe shape stopper slot, main structure body lower end
Central slot bottom surface is provided with horizontal stripe shape spacing block set corresponding to horizontal stripe shape stopper slot.
As another kind of preferred version, contact supporter lower end of the present invention is provided with link slot, and yoke top is placed in
In link slot, yoke top and connection cell wall are correspondingly arranged on lateral connection hole, in lateral connection hole, are installed with connection shell fragment.
Secondly, static contact of the present invention is transversely U-shaped body, and magnetic blow-out is arranged on side in U-shaped body, magnetic blow-out be with in U-shaped body
The U-shaped metallic plate that side is corresponding.
It addition, repulsion striking bridge two ends of the present invention are elevation structure, it is corresponding with elevation structure outside static contact
Run-on tab.
Beneficial effect of the present invention.
When feature of the present invention is breaking current or disjunction short circuit current, electric current is the biggest, and clearance between open contacts increases the most accordingly, institute
With produce electric arc elongate length lengthen the most accordingly, utilize extinguish electric arc, after arc extinction Renew theory open away from device, have
Opening velocity is fast, and arc quenching effect is the most especially at short circuit condition arc extinguishing.
The present invention utilizes current characteristics, produces the feature of electrodynamic repulsion force, contact under conditions of electric current passes through, static contact with
Magnetic blow-out, moving contact forms galvanic circle with repulsion striking bridge and electric arc, produces the effect of repulsion, breaking current or disjunction short circuit electricity
During stream, the biggest repulsion of electric current is the strongest, and yoke and contact supporter produce active force, causes the back-moving spring of resetting means to shrink and becomes
Shape, making clearance between open contacts can drive at original theory increases the back-moving spring contraction distortion amount of corresponding resetting means on the basis of position
Highly, produce the length that electric arc elongates elongate the most accordingly so causing, be more beneficial for breaking arc, after arc extinction, electronic scold
Power event resolves, the active force at yoke and contact supporter disappears, it is impossible to keep the back-moving spring of resetting means to be maintained at receipts
Compression deformation state, returns to initial position, and clearance between open contacts is returned to theory and drives away from position, beneficially contact closure, and dynamic/static contact
Damage less, electric life length can frequent breaking current, reduce power consumption and reduce small product size and structure simultaneously.Meet and control and protect
Protect the low-pressure electronic equipment products such as switch, the special contactor of special operation condition occasion and motor protector, short at breaking current or disjunction
The Functional Requirement of road electric current and short-circuit protection requirement.
Accompanying drawing explanation
The present invention will be further described with detailed description of the invention below in conjunction with the accompanying drawings.Scope not only limits to
Statement in herein below.
Fig. 1 is the structural representation that the present invention provides embodiment, improves the electrodynamic repulsion force clearance between open contacts of contact breaking capacity
And resetting means.
Fig. 2 is in electrodynamic repulsion force clearance between open contacts and the resetting means motor process improving contact breaking capacity, i.e. separating brake mistake
Journey schematic diagram.
Fig. 3 is to improve reseting procedure figure after the electrodynamic repulsion force clearance between open contacts of contact breaking capacity and resetting means arc extinguishing.
Fig. 4 is the arc quenching system structural representation with high breaking capacity using the present invention.
Fig. 5 is contact supporter, spring support and touch spring mounting means schematic diagram.
Fig. 6 is resetting means connecting installation structure schematic diagram of the present invention.
Detailed description of the invention
As it can be seen, 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 means, yoke 14, shell fragment 22, moving contact 3 is arranged on contact supporter 8
Upper end, repulsion striking bridge 4 is arranged on moving contact 3 upper end, and spring support 10 can slide up and down and is arranged in contact supporter 8
And connection has lower reset contact spring 9, spring support 10 upper end to be connected with moving contact 3；Yoke 14 top and contact supporter 8 times
End is fixing.
It is placed in the vertical hole in the middle part of main structure body 13 in the middle part of described contact supporter 8, the main structure body below moving contact 3
It is provided with static contact 5 on 13, described magnetic blow-out 7 is set inside static contact 5.
Described spring support 10 includes upper end transverse slat 16 and both sides riser 17, and described contact supporter 8 top is hollow
Mullion structure, mullion structure upper center is concave configuration, and lower concave part both sides are the socket connected with mullion structure hollow bulb 19
18, both sides riser 17 lower end is placed in hollow bulb 19 by socket 18, and transverse slat 16 is placed in above lower concave part；Riser 17 lower end is upper
Crotch 20 structure, described touch spring 9 is placed on both sides between crotch 20, and upper crotch 20 stretches into touch spring 9 lower end inside, touches
Head spring 9 upper end offsets with lower concave part lower end.
Described resetting means includes the vertical groove being arranged on contact supporter 8 lower end sidepiece, in the middle part of vertical groove floor
Being provided with boss, boss periphery is cased with back-moving spring 24, and back-moving spring 24 is buckled with cylindric reset top shell 23, reset top shell 23
Upper end offsets with central slot bottom surface, described main structure body 13 lower end.Resetting means is arranged on contact supporter 8, scolds electronic
Under power effect, strengthen the actuating length of contact supporter 8, promote back-moving spring 24 to shrink, reach to improve contact breaking capacity
Purpose, after electrodynamic repulsion force disappears, back-moving spring 24 automatically resets.
Described reset top shell 23 both sides are provided with cross spacing block, and vertical groove both sides are provided with vertical bar corresponding to limited block
Shape stopper slot；Reset top shell 23 upper end is provided with horizontal stripe shape stopper slot, and central slot bottom surface, main structure body 13 lower end is corresponding to horizontal stroke
Strip stopper slot is provided with horizontal stripe shape spacing block set.
Described contact supporter 8 lower end is provided with link slot 21, and yoke 14 top is placed in link slot 21, yoke 14 top
It is correspondingly arranged on lateral connection hole with connecting on cell wall, in lateral connection hole, is installed with connection shell fragment 22.
Described static contact 5 is transversely U-shaped body, and magnetic blow-out 7 is arranged on side in U-shaped body, and magnetic blow-out 7 is corresponding with side in U-shaped body
U-shaped metallic plate.
Described repulsion striking bridge 4 two ends are elevation structure, are the run-on tab corresponding with elevation structure outside static contact 5
12.Electric arc elongation is easy at the elevation angle, two ends.
Being provided with gas-blast device 6 between described static contact 5 and moving contact 3, described repulsion striking bridge 4 both sides are provided with
Arc extinguishing grid pieces group 2.Described main structure body 13 upper end is covered with arc-extinguish chamber 1, described moving contact 3, repulsion striking bridge 4, static contact 5, magnetic
Blow 7, arc extinguishing grid pieces group 2 is arranged in arc-extinguish chamber 1, the arc-extinguish chamber 1 outside arc extinguishing grid pieces group 2 is provided with striking passage 15 and enters
Mouthful, striking passage 15 entrance goes out to be provided with vertical suction arc baffle plate 11.Gas-blast device 6 decomposites a large amount of insulating gas, slows down
Electric arc variable sustainable growth and the effect of burning, concurrently form chamber pressure, and electric arc is accelerated push arc extinguishing grid pieces group 2, and to carry out cutting cold
But extinguish, and by breaking arc produce metallic vapour or conducting metal particles introduce arc-extinguish chamber 1 striking mouth passage.Entrance position
Putting installation and inhale arc baffle plate 11, metallic particles adsorbs under high temperature action to be inhaled on arc baffle plate 11, and residual gas is at a high speed from arc-extinguish chamber 1
Striking passage 15 discharge, complete the whole process of disjunction.
The most uniform multiple horizontal bar holes of described suction arc baffle plate 11.
The work process of the present invention is described below in conjunction with the accompanying drawings.
During contact closure, yoke 14 drives moving contact 3, repulsion striking bridge 4, and touch spring 9, spring support 10 complete with quiet
Contact 5 connection procedure.When contact disconnects, yoke 14 band moving contact 3 supporter, 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 means initial position.
When contact has electric current or short circuit current passes through, when contact disconnects, utilize 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 is accelerated to touch
The speed that head disconnects, the weight at electrodynamic repulsion force effect lower yoke 14 and correlated parts accelerates contact disconnection, generation effect simultaneously
Power, causes back-moving spring 24 contraction distortion of resetting means, and making clearance between open contacts can drive at original theory increases on the basis of position
The height of corresponding back-moving spring 24 contraction distortion amount.
Disconnect moment generation electric arc at contact, will not disappear at electrodynamic repulsion force before arc extinction, make answering of resetting means
Position spring 24 is maintained at contraction distortion state, it is ensured that clearance between open contacts is maximum, is beneficial to extinguish electric arc.When after arc extinction, electronic scold
Power event resolves, the active force at yoke 14 and contact supporter 8 disappears, it is impossible to keep the back-moving spring 24 of resetting means to be in
Contraction distortion amount state, the back-moving spring 24 of resetting means returns to initial position, and clearance between open contacts is returned to theory and drives away from position,
Utilize contact closure.
It is understood that above with respect to the specific descriptions of the present invention, be merely to illustrate the present invention and be not limited to this
Technical scheme described by inventive embodiments, it will be understood by those within the art that, still can carry out the present invention
Amendment or equivalent, to reach identical technique effect；As long as meet use needs, all protection scope of the present invention it
In.
Claims (7)
1. improve a constructional device for contact breaking capacity, including main structure body, moving contact, repulsion striking bridge, static contact, magnetic
Blow, contact supporter, touch spring, spring support, resetting means, yoke, shell fragment, it is characterised in that moving contact is arranged on contact
The upper end of supporter, repulsion striking bridge is arranged on moving contact upper end, and spring support can slide up and down and is arranged on contact supporter
Interior and connection has lower reset contact spring, and spring support upper end is connected with moving contact；Yoke top is solid with contact supporter lower end
Fixed；
It is placed in the middle part of described contact supporter in the vertical hole in the middle part of main structure body, the main structure body below moving contact is provided with
Static contact, arranges described magnetic blow-out inside static contact；
Described resetting means is arranged on contact supporter lower end sidepiece, recessed in the middle part of resetting means upper end and described main structure body lower end
Groove bottom offsets.
A kind of constructional device improving contact breaking capacity, it is characterised in that described resetting means
Including being arranged on the vertical groove of contact supporter lower end sidepiece, being provided with boss in the middle part of vertical groove floor, boss periphery is overlapped
There is back-moving spring, back-moving spring is buckled with reset top shell, reset top shell upper end and central slot bottom surface, described main structure body lower end
Offset.
A kind of constructional device improving contact breaking capacity, it is characterised in that described spring support
Including upper end transverse slat and both sides riser, described contact supporter top is the mullion structure of hollow, and mullion structure upper center is
Concave configuration, lower concave part both sides are the socket connected with mullion structure hollow bulb, and riser lower end, both sides is placed in hollow by socket
In portion, transverse slat is placed in above lower concave part；Riser lower end is upper crotch structure, and described touch spring is placed 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.
A kind of constructional device improving contact breaking capacity, it is characterised in that described reset top shell
Both sides are provided with cross spacing block, and vertical groove both sides are provided with vertical bar shape stopper slot corresponding to limited block；Reset top shell upper end
Being provided with horizontal stripe shape stopper slot, it is spacing that central slot bottom surface, main structure body lower end is provided with horizontal stripe shape corresponding to horizontal stripe shape stopper slot
Projection.
A kind of constructional device improving contact breaking capacity, it is characterised in that described contact support
Part lower end is provided with link slot, and yoke top is placed in link slot, yoke top and connection cell wall is correspondingly arranged on and laterally connects
Connect hole, in lateral connection hole, be installed with connection shell fragment.
A kind of constructional device improving contact breaking capacity, it is characterised in that described static contact is
Transversely U-shaped body, magnetic blow-out is arranged on side in U-shaped body, and magnetic blow-out is the U-shaped metallic plate corresponding with side in U-shaped body.
A kind of constructional device improving contact breaking capacity, it is characterised in that described repulsion striking
Bridge two ends are elevation structure, are the run-on tab corresponding with elevation structure outside 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 true CN106057602A (en) | 2016-10-26 |
| CN106057602B CN106057602B (en) | 2018-05-15 |
Family
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Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106057602B (en) |
Cited By (3)
| 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 |
| CN111521931A (en) * | 2020-05-22 | 2020-08-11 | 福州大学 | Contact material simulation test device based on eddy current repulsion mechanism and working method thereof |
| 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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| CN111521931A (en) * | 2020-05-22 | 2020-08-11 | 福州大学 | Contact material simulation test device based on eddy current repulsion mechanism and working method thereof |
| 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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| Publication number | Publication date |
|---|---|
| CN106057602B (en) | 2018-05-15 |
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