CN110164739A - A kind of resilience-proof device of universal low-voltage circuit breaker - Google Patents
A kind of resilience-proof device of universal low-voltage circuit breaker Download PDFInfo
- Publication number
- CN110164739A CN110164739A CN201910446074.0A CN201910446074A CN110164739A CN 110164739 A CN110164739 A CN 110164739A CN 201910446074 A CN201910446074 A CN 201910446074A CN 110164739 A CN110164739 A CN 110164739A
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- China
- Prior art keywords
- connecting rod
- gag lever
- lever post
- side plate
- buckle
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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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
-
- 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
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Abstract
The invention discloses a kind of resilience-proof devices of universal low-voltage circuit breaker, including crank, connecting rod, buckle and gag lever post；The resilience-proof device is arranged on side plate；Floodgate semiaxis and upper connecting rod are additionally provided on the side plate；Crank is L-shaped, and one end of the crank is connected with floodgate semiaxis；Link tilt is arranged, and can be rotatably set on the side plate in the middle part of connecting rod；It can be rotatably set in the middle part of buckle on the side plate；Gag lever post can be rotatably set on the side plate.The resilience-proof device of universal low-voltage circuit breaker of the invention, drives position-limit mechanism by position-limit mechanism and a series of connecting rods, and moving contact is sprung back when achieving the purpose that prevent breaker open operation, more effectively realizes anti-rebound, improves service life.
Description
Technical field
The present invention relates to a kind of resilience-proof devices of universal low-voltage circuit breaker.
Background technique
In low-voltage distribution electric appliance, omnipotent breaker (hereinafter referred to as breaker) for distribute electric energy and protection circuit and
Equipment guarantees the reliability and safety of power supply system from the harm of the failures such as overload, short circuit, single-phase earthing.With electricity consumption
The increase of amount and more and more high-power loads occur, and the indices of breaker require all to improve constantly, especially
For the selective protection for realizing system, more require to improve the short resistance to index of breaker.Keeping the feelings for even reducing breaker volume
Short durability performance is improved under condition, industry guarantees contact when KA Rms mostly by the way of increasing moving contact spring force value
It will not be opened by reprimand.Match with this, to guarantee breaking capacity, the separating brake power of system must be increased, to make point of moving contact
Lock speed is accelerated.Breaker mechanism mostly uses greatly rigid material, if breaker does not have resilience-proof device or device not to work,
Moving contact springback capacity will will increase, and excessive rebound can make between dynamic and static contact effective has meeting when serious away from strongly reducing
Arc reignition occurs, causes contact to burn, or even cause more serious consequence.Therefore, breaker is solved to move during the opening process
The problem of springback capacity problems of too of contact is always electrical engineers' primary study.
3 ' of cantilever is housed referring to Fig. 1, fixing in the prior art, on side wall inner surfaces front position, on 3 surface ' of cantilever
Be hinged with and get rid of 1 ' of block, getting rid of 1 ' of block can rotate on the surface cantilever ', the shock by getting rid of 1 ' of block and 2 ' of limit shaft consume energy come
Reduce the rebound of dynamic moving contact, the rebounding ratio that such anti-rebound mode reduces is relatively limited, and the service life is not high.
Summary of the invention
The purpose of the present invention is overcoming the deficiencies of existing technologies, a kind of anti-rebound dress of universal low-voltage circuit breaker is provided
It sets, position-limit mechanism is driven by position-limit mechanism and a series of connecting rods, reach what moving contact when preventing breaker open operation was sprung back
Purpose, more effectively realizes anti-rebound, improves service life.
Realizing the technical solution of above-mentioned purpose is: a kind of resilience-proof device of universal low-voltage circuit breaker is fixed on side plate
On, the side plate is vertically arranged, and axis is provided on the side plate, and cantilever is fixed on the axis, and the low-voltage circuit breaker moves
Contact is connected with the cantilever, is additionally provided with floodgate semiaxis and upper connecting rod on the side plate, which is characterized in that the anti-rebound dress
It sets including crank, connecting rod, buckle and gag lever post, in which:
The crank is L-shaped, and one end of the crank is connected with floodgate semiaxis；
The link tilt is arranged, and can be rotatably set on the side plate in the middle part of the connecting rod, and the connecting rod
Upper end is disposed adjacent with the floodgate semiaxis, and the lower end of the connecting rod offers U-shaped breach；
It can be rotatably set in the middle part of the buckle on the side plate, one end of the buckle is provided with longitudinal rod, separately
One end is provided with the boss outwardly protruded, and the longitudinal rod is located in the U-shaped breach of the lower end of the connecting rod；
The gag lever post can be rotatably set on the side plate, be provided with U-shaped card slot on the outer peripheral surface of the gag lever post
With abut platform, the boss on the buckle contradicts the abutting platform on the gag lever post, and the buckle limits the gag lever post
Rotation counterclockwise；
The longitudinal axis is provided in the upper connecting rod, the longitudinal axis is connected in the U-shaped card slot of the gag lever post.
The resilience-proof device of above-mentioned a kind of universal low-voltage circuit breaker, wherein be vertically arranged with connecting rod on the side plate
Fixing axle can be rotatably set in the connecting rod fixing axle in the middle part of the connecting rod；
It is vertically arranged with buckle fixing axle on the side plate, it is solid to can be rotatably set in the buckle in the middle part of the buckle
On dead axle；
Limit fixing axle is vertically arranged on the side plate, the gag lever post can be rotatably set in the limit fixing axle
On.
The resilience-proof device of above-mentioned a kind of universal low-voltage circuit breaker, wherein described when the low-voltage circuit breaker closes a floodgate
Floodgate semiaxis rotates counterclockwise, and the floodgate semiaxis drives the crank to rotate counterclockwise, and the crank offsets with the connecting rod
Push the connecting rod to rotate clockwise after touch, the connecting rod drives the buckle to rotate counterclockwise, the boss on the buckle from
The abutting platform on the gag lever post is opened, the gag lever post rotates counterclockwise, and the gag lever post drives the upper connecting rod to move downward,
The upper connecting rod pushes the cantilever rotation, and the cantilever drives the switch on of moving contact.
The resilience-proof device of above-mentioned a kind of universal low-voltage circuit breaker, wherein described when the low-voltage circuit breaker separating brake
Upper connecting rod moves right, and the upper connecting rod drives the gag lever post to rotate clockwise；Boss on the buckle is contradicted described
On abutting platform on gag lever post, the rotation counterclockwise of the gag lever post is limited, the position of the upper connecting rod is limited, and then is played
Anti-rebound effect.
The resilience-proof device of universal low-voltage circuit breaker of the invention, is driven by position-limit mechanism and a series of connecting rods
Position-limit mechanism, moving contact is sprung back when achieving the purpose that prevent breaker open operation, more effectively realizes anti-rebound, is improved and is used the longevity
Life.
Detailed description of the invention
Fig. 1 is the structure chart of resilience-proof device in the prior art；
Fig. 2 is the scheme of installation of the resilience-proof device of universal low-voltage circuit breaker of the invention；
Fig. 3 is the structure chart using the universal low-voltage circuit breaker of resilience-proof device of the invention when rigid triggering is closed a floodgate；
Fig. 4 is the universal low-voltage circuit breaker using resilience-proof device of the invention when "on" position just triggers separating brake
Structure chart；
Fig. 5 is the emulation rebound test comparative result figure of traditional resilience-proof device and resilience-proof device of the invention.
Specific embodiment
It is right with reference to the accompanying drawing in order to make those skilled in the art be better understood when technical solution of the present invention
Its specific embodiment is described in detail:
Please refer to Fig. 2, Fig. 3 and Fig. 4, highly preferred embodiment of the present invention, a kind of anti-rebound dress of universal low-voltage circuit breaker
It sets, is fixed on side plate 10, side plate 10 is vertically arranged, and axis is provided on side plate 10, cantilever 20, low-voltage circuit breaker are provided on axis
Moving contact 7 be connected with cantilever 20, floodgate semiaxis 1 and upper connecting rod 6 are additionally provided on side plate.
The resilience-proof device of universal low-voltage circuit breaker of the invention includes crank 2, connecting rod 3, buckle 4 and gag lever post 5.
Floodgate semiaxis 1 can be rotatably set on side plate 10；Crank 2 is L-shaped, one end and 1 phase of floodgate semiaxis of crank 2
Even；Connecting rod 3 is obliquely installed, and the middle part of connecting rod 3 can be rotatably set on side plate 10, and the upper end of connecting rod 3 and 1 phase of floodgate semiaxis
Neighbour's setting, the lower end of connecting rod 3 offers U-shaped breach 31；Crank 2 can be with connecting rod 3 with the rotation counterclockwise of floodgate semiaxis 1
Upper end contradicts and drive link 3 rotates.
The middle part of buckle 4 can be rotatably set on side plate 10, and the one end for buckling 4 is provided with longitudinal rod 41, and the other end is set
It is equipped with the boss 42 outwardly protruded, longitudinal rod 41 is located in the U-shaped breach 31 of the lower end of connecting rod 31；When connecting rod 3 rotates, pass through U
Longitudinal rod 41 in v notch v 31 drives 4 rotation of buckle.
Gag lever post 5 can be rotatably set on side plate 10, and U-shaped card slot 51 is provided on the outer peripheral surface of gag lever post 5 and is abutted
Platform 52, the boss 42 buckled on 4 contradict the abutting platform 52 on gag lever post 5, limit the rotation counterclockwise of gag lever post 5.Upper connecting rod 6
On be provided with the longitudinal axis 61, the longitudinal axis 61 is connected in the U-shaped card slot 51 of gag lever post 5.
Upper connecting rod 6 is located at the top of gag lever post 5；The longitudinal axis 61 is connected in the U-shaped card slot 51 of gag lever post 5.In this way, gag lever post
After 5 position is fixed, the position of the longitudinal axis 61 is just fixed, and then also just secures the position of upper connecting rod 6, when gag lever post 5 rotates, is led to
The longitudinal axis 61 crossed in U-shaped card slot 51 drives upper connecting rod 6 to move, and equally, drives gag lever post 5 to rotate when upper connecting rod 6 moves.
In the present embodiment, floodgate semiaxis fixing axle is vertically arranged on side plate 10, floodgate semiaxis 1 can be rotatably set in conjunction
In lock semiaxis fixing axle；Connecting rod fixing axle is vertically arranged on side plate 10, the middle part of connecting rod 3 can be rotatably set in connecting rod and fix
On axis；Buckle fixing axle is vertically arranged on side plate 10, buckling 4 middle part can be rotatably set in buckle fixing axle；Side plate
Limit fixing axle is vertically arranged on 10, gag lever post 5 can be rotatably set in limit fixing axle.In this way, floodgate semiaxis 1, company
Bar 3, buckle 4 and gag lever post 5 are rotated along corresponding fixing axle.
A kind of resilience-proof device of universal low-voltage circuit breaker of the invention, when in use:
(1) when low-voltage circuit breaker closes a floodgate, floodgate semiaxis 1 is rotated counterclockwise, and floodgate semiaxis 1 drives crank 2 to rotate counterclockwise,
Crank 2 is rotated clockwise with the inconsistent rear promotion connecting rod 3 of connecting rod, and connecting rod 3 drives buckle 4 to rotate counterclockwise, the boss on buckle 4
42 leave the abutting platform 52 on gag lever post 5, and gag lever post 5 rotates counterclockwise, and gag lever post 5 drives upper connecting rod 6 to move downward, upper connecting rod
6 push cantilever 20 to rotate, and cantilever 20 drives moving contact 7 to close a floodgate；
(2) when low-voltage circuit breaker separating brake, upper connecting rod 6 is moved right, and upper connecting rod 6 drives gag lever post 5 to rotate clockwise；Buckle
Boss 42 on 4 contradicts on the abutting platform 52 on gag lever post 5, limits the rotation counterclockwise of gag lever post 5, the longitudinal axis of upper connecting rod 6
It is connected in the U-shaped card slot 51 of gag lever post 5, the position of upper connecting rod 6 is limited, and the position of cantilever 20 is accordingly fixed, and then dynamic touching
The position of head is fixed, and is played the role of so anti-rebound.
Referring to Fig. 5, by the resilience-proof device of traditional resilience-proof device and universal low-voltage circuit breaker of the invention into
Row emulation rebound test, by motion simulation as can be seen that traditional resilience-proof device is in anti-rebound separating brake, dynamic/static contact away from
Defection springs back to 17.23mm, when the anti-rebound separating brake of the resilience-proof device of universal low-voltage circuit breaker of the invention, dynamic/static contact
Distance is minimum only to arrive 28.27mm.
In conclusion the resilience-proof device of universal low-voltage circuit breaker of the invention, by position-limit mechanism and a series of
Connecting rod drives position-limit mechanism, achievees the purpose that prevent moving contact when breaker open operation from springing back, and more effectively realizes anti-rebound, mentions
High service life.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention,
And be not used as limitation of the invention, as long as the change in spirit of the invention, to embodiment described above
Change, modification will all be fallen within the scope of claims of the present invention.
Claims (4)
1. a kind of resilience-proof device of universal low-voltage circuit breaker, is fixed on side plate, the side plate is vertically arranged, the side plate
On be provided with axis, cantilever is fixed on the axis, the moving contact of the low-voltage circuit breaker is connected with the cantilever, on the side plate
It is additionally provided with floodgate semiaxis and upper connecting rod, which is characterized in that the resilience-proof device includes crank, connecting rod, buckle and gag lever post,
Wherein:
The crank is L-shaped, and one end of the crank is connected with floodgate semiaxis；
The link tilt is arranged, and can be rotatably set on the side plate in the middle part of the connecting rod, and the upper end of the connecting rod
It is disposed adjacent with the floodgate semiaxis, the lower end of the connecting rod offers U-shaped breach；
It can be rotatably set in the middle part of the buckle on the side plate, one end of the buckle is provided with longitudinal rod, the other end
It is provided with the boss outwardly protruded, the longitudinal rod is located in the U-shaped breach of the lower end of the connecting rod；
The gag lever post can be rotatably set on the side plate, and U-shaped card slot is provided on the outer peripheral surface of the gag lever post and is supported
Consecutive, the boss on the buckle contradicts the abutting platform on the gag lever post, and the buckle limits the inverse time of the gag lever post
Needle rotation；
The longitudinal axis is provided in the upper connecting rod, the longitudinal axis is connected in the U-shaped card slot of the gag lever post.
2. a kind of resilience-proof device of universal low-voltage circuit breaker according to claim 1, which is characterized in that the side plate
On be vertically arranged with connecting rod fixing axle, can be rotatably set in the middle part of the connecting rod in the connecting rod fixing axle；
It is vertically arranged with buckle fixing axle on the side plate, can be rotatably set in the buckle fixing axle in the middle part of the buckle
On；
Limit fixing axle is vertically arranged on the side plate, the gag lever post can be rotatably set in the limit fixing axle.
3. a kind of resilience-proof device of universal low-voltage circuit breaker according to claim 1, which is characterized in that the low pressure
When breaker closing, the floodgate semiaxis is rotated counterclockwise, and the floodgate semiaxis drives the crank to rotate counterclockwise, the song
Handle is rotated clockwise with the inconsistent rear promotion connecting rod of the connecting rod, and the connecting rod drives the buckle to rotate counterclockwise, institute
It states the boss on buckle and leaves abutting platform on the gag lever post, the gag lever post rotates counterclockwise, and the gag lever post drives institute
It states upper connecting rod to move downward, the upper connecting rod pushes the cantilever rotation, and the cantilever drives the switch on of moving contact.
4. a kind of resilience-proof device of universal low-voltage circuit breaker according to claim 1, which is characterized in that the low pressure
When breaker open operation, the upper connecting rod is moved right, and the upper connecting rod drives the gag lever post to rotate clockwise；On the buckle
Boss contradict on the abutting platform on the gag lever post, limit the rotation counterclockwise of the gag lever post, the position of the upper connecting rod
It sets and is limited, and then play the role of anti-rebound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910446074.0A CN110164739B (en) | 2019-05-27 | 2019-05-27 | Anti-rebound device of universal low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910446074.0A CN110164739B (en) | 2019-05-27 | 2019-05-27 | Anti-rebound device of universal low-voltage circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110164739A true CN110164739A (en) | 2019-08-23 |
| CN110164739B CN110164739B (en) | 2021-01-29 |
Family
ID=67629161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910446074.0A Active CN110164739B (en) | 2019-05-27 | 2019-05-27 | Anti-rebound device of universal low-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110164739B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113539759A (en) * | 2020-04-20 | 2021-10-22 | 施耐德电气（中国）有限公司 | Breaker and 5G power distribution cabinet with same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001093388A (en) * | 1999-09-27 | 2001-04-06 | Terasaki Electric Co Ltd | Circuit breaker |
| CN102054631A (en) * | 2011-01-19 | 2011-05-11 | 西安交通大学 | Anti-bouncer for circuit breaker |
| CN202058671U (en) * | 2011-05-27 | 2011-11-30 | 德力西电气（宁波）有限公司 | Spring-back resistant device for breaker |
| CN206742179U (en) * | 2017-03-14 | 2017-12-12 | 江苏高博锐电气有限公司 | Moving contact of breaker resilience-proof device |
| CN107481897A (en) * | 2016-06-07 | 2017-12-15 | 上海电器股份有限公司人民电器厂 | A kind of resilience-proof device of breaker |
| CN109659205A (en) * | 2017-10-12 | 2019-04-19 | 江苏高博锐电气有限公司 | A kind of disruptor clamp plate type bounce-proof mechanism |
| CN109659204A (en) * | 2017-10-12 | 2019-04-19 | 江苏高博锐电气有限公司 | A kind of lock for circuit breaker shell type bounce-proof mechanism |
-
2019
- 2019-05-27 CN CN201910446074.0A patent/CN110164739B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001093388A (en) * | 1999-09-27 | 2001-04-06 | Terasaki Electric Co Ltd | Circuit breaker |
| CN102054631A (en) * | 2011-01-19 | 2011-05-11 | 西安交通大学 | Anti-bouncer for circuit breaker |
| CN202058671U (en) * | 2011-05-27 | 2011-11-30 | 德力西电气（宁波）有限公司 | Spring-back resistant device for breaker |
| CN107481897A (en) * | 2016-06-07 | 2017-12-15 | 上海电器股份有限公司人民电器厂 | A kind of resilience-proof device of breaker |
| CN206742179U (en) * | 2017-03-14 | 2017-12-12 | 江苏高博锐电气有限公司 | Moving contact of breaker resilience-proof device |
| CN109659205A (en) * | 2017-10-12 | 2019-04-19 | 江苏高博锐电气有限公司 | A kind of disruptor clamp plate type bounce-proof mechanism |
| CN109659204A (en) * | 2017-10-12 | 2019-04-19 | 江苏高博锐电气有限公司 | A kind of lock for circuit breaker shell type bounce-proof mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113539759A (en) * | 2020-04-20 | 2021-10-22 | 施耐德电气（中国）有限公司 | Breaker and 5G power distribution cabinet with same |
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| Publication number | Publication date |
|---|---|
| CN110164739B (en) | 2021-01-29 |
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