CN106409627A - Circuit breaker tripping mechanism - Google Patents
Circuit breaker tripping mechanism Download PDFInfo
- Publication number
- CN106409627A CN106409627A CN201510481975.5A CN201510481975A CN106409627A CN 106409627 A CN106409627 A CN 106409627A CN 201510481975 A CN201510481975 A CN 201510481975A CN 106409627 A CN106409627 A CN 106409627A
- Authority
- CN
- China
- Prior art keywords
- contact
- moving contact
- lever
- circuit breaker
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/42—Induction-motor, induced-current, or electrodynamic release mechanisms
- H01H71/43—Electrodynamic release mechanisms
Abstract
A circuit breaker tripping mechanism comprises a moving contact (1). The moving contact (1) is installed on a rotating shaft (2). One end of the moving contact (1), which corresponds to a static contact (3), is installed with a moving contact point (101). The mechanism is characterized in that a position on the static contact (3), which corresponds to the moving contact point (101), is provided with a fixed contact point (4) which can be coupled/disconnected to the moving contact point (101); the other end of the moving contact (1) is connected to a lever mechanism (5); during a process that the moving contact point (101) and the fixed contact point (4) are coupled/disconnected, the moving contact (1) can stir the lever mechanism (5) so that an operating mechanism (6) releases a half shaft (601) and unlocks. In the invention, the lever mechanism is additionally installed to assist disconnection; at the contact, because an electro-dynamic repulsion force is used to carry out separation, a breaker operation mechanism can be accurately and rapidly unlocked so that a disconnection speed of the breaker operation mechanism can be increased and a condition that a breaker is damaged because of attraction of the moving and static contacts for a second time is avoided.
Description
Technical field
The invention belongs to breaker apparatus technical field, it is exactly specifically to be related to a kind of circuit breaker trip mechanism,
The movement time of chopper can effectively be shortened, improve the interrupting performance of chopper.
Background technology
Chopper is divided into primary cut-out and low-voltage circuit breaker by its range, low-voltage circuit breaker be one kind both
There is hand switch to act on, can automatically carry out the electrical equipment of decompression, under-voltage, overload and short-circuit protection again.It can
It is used for distributing electric energy, infrequently start asynchronous motor, protection is carried out to power circuit and motor etc.,
Can automatic shutdown circuit when they occur serious overloads or the fault such as short-circuit and under-voltage.
Chopper is typically made up of contact system, arc quenching system, operating mechanism, electrical apparatus release, shell etc., existing
Some low-voltage circuit breakers, when producing short circuit, it is dynamic and static for the chopper especially with current-limiting function
Contact will separate within the extremely short time in the presence of electrodynamic repulsion force and produce electric arc, with dynamic and static contact
Between distance of separation increase, electrodynamic repulsion force declines rapidly, when electrodynamic repulsion force is less than touch spring counteracting force,
Dynamic and static contact starts close.This kind of near being commonly called as " falling of contact ", chopper can be caused with bad shadow
Ring.For example：Extend break, cause arc extinguishing interior the restriking of electric arc, serious meeting scaling loss chopper,
Thus having influence on the breaking capacity of chopper.Existing solution is setting electromagnetism in low capacity chopper
Ferrum action carrys out quick release circuit breaker operation mechanism, makes the fast quick-action of circuit breaker operation mechanism in short circuit
Making, dynamic and static contact being separated, thus avoid the contact scolded out " falling of contact " phenomenon occurs again.
But due to the restriction in space in large capcity breaker, the size of electric magnet is restricted, and electric magnet is easily full
With thus affecting the speed of action of circuit breaker operation mechanism, lead to the contact scolded out to occur " contact again
Fall after rise " phenomenon.
Content of the invention
The purpose of the present invention is to be susceptible to " contact for existing large capcity breaker in circuit breaker
Fall after rise " phenomenon, a kind of energy accurately quick release breaker operator after contact is separated due to electrodynamic repulsion force is provided
The circuit breaker trip mechanism of mechanism, it can improve the breaking speed of circuit breaker operation mechanism, it is to avoid sound is touched
The adhesive again of head causes chopper to damage.
Technical scheme
In order to realize above-mentioned technical purpose, a kind of circuit breaker trip mechanism of present invention design, it includes dynamic touching
Head, moving contact is contained in rotating shaft, and equipped with movable contact on described moving contact one end corresponding with static contact, it is special
Levy and be：On static contact, position corresponding with movable contact is provided with the fixed contact being capable of coupled/disconnection,
The moving contact other end is connected with leverage, the process that moving contact is coupled with fixed contact/disconnects in movable contact
In can shifting lever mechanism make operating mechanism dropout semiaxis unlock.
Further, described moving contact is arranged in rotating shaft by contact axle and can rotate around contact axle.
Further, described leverage includes lever, lever shaft and reduction torsion spring, and lever is contained on lever shaft
Can rotate around lever shaft, lever shaft is contained in rotating shaft, reduction torsion spring is contained on lever shaft and props up lever, thick stick
Bar one end is connected with moving contact, and the other end is connected with operating mechanism dropout semiaxis.
Beneficial effect
The present invention provide a kind of circuit breaker trip mechanism, by set up leverage assist disjunction, contact by
Energy accurately quick release circuit breaker operation mechanism after electrodynamic repulsion force separates, it can improve breaker operator machine
The breaking speed of structure, it is to avoid the adhesive again of dynamic/static contact causes chopper to damage.
Brief description
Accompanying drawing 1 is the dynamic/static contact couple state structural representation of the present invention.
Accompanying drawing 2 is the dynamic/static contact off-state structural representation of the present invention.
Accompanying drawing 3 is leverage motion principle structural representation in the present invention.
Accompanying drawing 4 is leverage structural representation in the present invention.
Accompanying drawing 5 is leverage mounting structure schematic diagram in the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention is elaborated.
Embodiment
As shown in figure 1 and 2, a kind of circuit breaker trip mechanism, it includes moving contact 1, and moving contact 1 fills
In rotating shaft 2, equipped with movable contact 101 on described moving contact 1 one end corresponding with static contact 3, its feature
It is：On static contact 3 position corresponding with movable contact 101 be provided be capable of coupled/disconnect fixation touch
Point 4, moving contact 1 other end is connected with leverage 5, and moving contact 1 is in movable contact 101 and fixed contact 4
Shifting lever mechanism 5 operating mechanism 6 dropout semiaxis 601 can be made to unlock during coupling/disconnection.
Described moving contact 1 is arranged in rotating shaft 2 by contact axle 7 and can rotate around contact axle 7.
As shown in accompanying drawing 3～5, described leverage 5 includes lever 501, lever shaft 502 and reduction torsion spring
503, lever 501 is contained on lever shaft 502 and can rotate around lever shaft 502, and lever shaft 502 is contained in and turns
On axle 2, reduction torsion spring 503 is contained on lever shaft 502 and props up lever 501, and lever 501 one end is touched with dynamic
1 connection, the other end is connected with operating mechanism 6 dropout semiaxis 601.
The work process of the present invention is arbitrarily a piece of moving contact 1 to be disconnected with fixed contact 4 due to electrodynamic repulsion force
Shi Douhui shifting lever 501 rotates, and lever 501 is stirred operating mechanism 6 dropout semiaxis 601 and rotated, and makes behaviour
Make mechanism 6 to unlock, thus driving moving contact 1 to separate further be in trip position until chopper.This
A kind of circuit breaker trip mechanism of bright offer, is assisted disjunction by setting up leverage, is scolded due to electronic in contact
Energy accurately quick release circuit breaker operation mechanism after power separation, it can improve the disjunction of circuit breaker operation mechanism
Speed, it is to avoid the adhesive again of dynamic/static contact causes chopper to damage.
Structure depicted in the present embodiment institute accompanying drawings, ratio, size etc., all only in order to coordinate description institute
The content disclosing, so that those skilled in the art understands and reads, being not limited to the present invention can implement
Qualificationss, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or
The adjustment of size, under not affecting present invention effect that can be generated by and the purpose that can reach, all should still fall
In the range of disclosed technology contents obtain and can cover.Meanwhile, in this specification cited as
" on ", D score, "left", "right", " middle ", " clockwise ", the term of " counterclockwise " etc., also only
For ease of narration understand, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or
Adjustment, under no essence change technology contents, when being also considered as the enforceable category of the present invention.
Claims (3)
1. a kind of circuit breaker trip mechanism, it includes moving contact (1), and moving contact (1) is contained in rotating shaft (2),
On described moving contact (1) one end corresponding with static contact (3) equipped with movable contact (101) it is characterised in that：Quiet
The upper position corresponding with movable contact (101) of contact (3) is provided with the fixed contact (4) being capable of coupled/disconnection,
Moving contact (1) other end is connected with leverage (5), and moving contact (1) is in movable contact (101) and fixed contact (4)
Shifting lever mechanism (5) operating mechanism (6) dropout semiaxis (601) can be made to unlock during coupling/disconnection.
2. as claimed in claim 1 a kind of circuit breaker trip mechanism it is characterised in that：Described moving contact
(1) rotating shaft (2) is arranged on above by contact axle (7) and can rotate around contact axle (7).
3. as claimed in claim 1 a kind of circuit breaker trip mechanism it is characterised in that：Described Lever machine
Structure (5) includes lever (501), lever shaft (502) and reduction torsion spring (503), and lever (501) is contained in lever shaft
(502) can rotate around lever shaft (502) on, lever shaft (502) is contained in rotating shaft (2), reduction torsion spring (503)
It is contained on lever shaft (502) and props up lever (501), lever (501) one end is connected with moving contact (1), the other end
It is connected with operating mechanism (6) dropout semiaxis (601).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510481975.5A CN106409627A (en) | 2015-08-03 | 2015-08-03 | Circuit breaker tripping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510481975.5A CN106409627A (en) | 2015-08-03 | 2015-08-03 | Circuit breaker tripping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106409627A true CN106409627A (en) | 2017-02-15 |
Family
ID=58008253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510481975.5A Pending CN106409627A (en) | 2015-08-03 | 2015-08-03 | Circuit breaker tripping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106409627A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108538686A (en) * | 2017-03-06 | 2018-09-14 | 上海良信电器股份有限公司 | A kind of circuit breaker trip unit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991000609A1 (en) * | 1989-06-30 | 1991-01-10 | Hitachi, Ltd. | Circuit breaker |
| CN101061561A (en) * | 2004-11-19 | 2007-10-24 | Abb服务有限公司 | Automatic circuit breaker with tripping device activated by a movable contact |
| CN102592896A (en) * | 2011-01-03 | 2012-07-18 | Ls产电株式会社 | Movable contactor assembly for current limiting type circuit breaker |
| CN103928272A (en) * | 2014-03-19 | 2014-07-16 | 浙江天正智能电器有限公司 | Circuit breaker structure achieving rapid releasing through electric repulsion force and circuit breaker |
| CN204966430U (en) * | 2015-08-03 | 2016-01-13 | 上海良信电器股份有限公司 | Circuit breaker tripped mechanism |
-
2015
- 2015-08-03 CN CN201510481975.5A patent/CN106409627A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991000609A1 (en) * | 1989-06-30 | 1991-01-10 | Hitachi, Ltd. | Circuit breaker |
| CN101061561A (en) * | 2004-11-19 | 2007-10-24 | Abb服务有限公司 | Automatic circuit breaker with tripping device activated by a movable contact |
| CN102592896A (en) * | 2011-01-03 | 2012-07-18 | Ls产电株式会社 | Movable contactor assembly for current limiting type circuit breaker |
| CN103928272A (en) * | 2014-03-19 | 2014-07-16 | 浙江天正智能电器有限公司 | Circuit breaker structure achieving rapid releasing through electric repulsion force and circuit breaker |
| CN204966430U (en) * | 2015-08-03 | 2016-01-13 | 上海良信电器股份有限公司 | Circuit breaker tripped mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108538686A (en) * | 2017-03-06 | 2018-09-14 | 上海良信电器股份有限公司 | A kind of circuit breaker trip unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170215 |
|
| RJ01 | Rejection of invention patent application after publication |