CN107481901B - A kind of breaker open operation bounce-proof device - Google Patents
A kind of breaker open operation bounce-proof device Download PDFInfo
- Publication number
- CN107481901B CN107481901B CN201610398887.3A CN201610398887A CN107481901B CN 107481901 B CN107481901 B CN 107481901B CN 201610398887 A CN201610398887 A CN 201610398887A CN 107481901 B CN107481901 B CN 107481901B
- Authority
- CN
- China
- Prior art keywords
- locking member
- cantilever
- lever
- breaker
- open operation
- 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.)
- Active
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
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/504—Manual reset mechanisms which may be also used for manual release provided with anti-rebound means
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
Abstract
The present invention relates to a kind of breaker open operation bounce-proof devices, including main shaft, locking member, cantilever, lever, tension spring and countershaft, cantilever is welded on main shaft, and locking member is connected on cantilever, and lever is located at below cantilever, tension spring one end is hung on countershaft, the other end is hung on cantilever, wherein locking member is hook-shaped locking member, its front end offers hook formation, and the shape of hook formation, which meets it, can hang over or be hooked on lever.Compared with prior art, the present invention improves design to traditional locking member structure, the end of locking member is arranged like to the shape of hook, the inertia effect is utilized well and increases amplitude of the locking member to lower swing for the centroid position for successfully changing locking member in this way, and since locking member has been designed to hook shape, therefore, the hook formation of locking member can be enabled to link up on lever during locking member is to lower swing, prevent the rebound of moving contact of breaker by force.
Description
Technical field
The invention belongs to low voltage electrical apparatus technology fields, more particularly, to a kind of breaker open operation bounce-proof device.
Background technique
Quickly, and breaker mechanism all uses rigid material to speed when due to breaker open operation, so general low pressure
If breaker is without resilience-proof device, moving contact can all generate rebound during separating brake, and excessive rebound meeting is so that dynamic
The distance between contact and stationary contact closely make arc reignition excessively, and moving contact is caused to burn with static contact, or even cause more tight
The consequence of weight.So it is always weight in low voltage electrical apparatus industry that the snap-off-distance for solving breaker moving contact during the opening process is excessive
The problem of point research, however resilience-proof device typically now acts on unobvious in practice, can not solve to spring back
Big problem.
Although industry has been devoted to find a kind of not only reliable but also simple mode and realizes bounce-proof function, do not have always
There is particularly preferred scheme.The bounce-proof device of well known breaker, including main shaft, driving member, connecting rod, backstop, locking member, axis
Pin, gag lever post side plate, reduction torsion spring, the side plate are fixed in entire breaker cage, play branch to breaker mechanism component
Position-limiting action is supportted, main shaft passes through the limit hole on side plate and can rotate, and driving member is fixed on main shaft, and connecting rod is connected with main shaft
It connects, stop is fixed on side plate, and pivot pin is fixed on side plate, and locking member passes through pivot pin and can rotate around pivot pin, and gag lever post is solid
It is scheduled on locking member, the limit hole that gag lever post protrudes on driving member is simultaneously limited hole limit, and reduction torsion spring covers on pivot pin, makees
With being to make breaker in stable state, locking member will not fall down and influence breaker closing.It is generally symmetrical in breaker
Installation there are two bounce-proof device.Its bounce-proof principle is: when breaker open operation, locking member is square counterclockwise together with main shaft
To rotation, after driving member and stop collision, moving contact of breaker rebounds with driving member, but locking member is in the work of inertia force
Under, still have the tendency that rotating counterclockwise, certain rotation is had relative to driving member, so that locking member is collided with stop and played
The effect of bounce-proof.This well known bounce-proof device can sometimes play bounce-proof in Short-Circuit High Current, but reliable
Property is not high；It can hardly work in short-circuit low current.
Summary of the invention
It is simple, reliable that it is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of structures
The high breaker open operation bounce-proof device of property.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of breaker open operation bounce-proof device, including main shaft, locking member, cantilever, lever, tension spring and countershaft, it is described
Cantilever is welded on main shaft, can be rotated together with main shaft, and a side end of cantilever is moving contact of breaker connecting pin, described
Locking member be connected on cantilever, the lever is located at below cantilever, and described tension spring one end is hung on countershaft, and the other end is hung
On cantilever, the locking member is hook-shaped locking member, and its rear end is rotatably connected on cantilever, and front end offers hook-shaped knot
Structure.
The hook formation is equipped with locking member lower edge, when breaker open operation, cantilever and is connected on cantilever
Locking member rotates in an anti-clockwise direction, and cantilever collides with lever first, and locking member has a to lower swing under effect of inertia
Movement makes locking member lower edge collide with lever, and the hook formation of subsequent locking member front end hangs over or is hooked on lever.
The shape of the hook formation, which meets it, can hang over or be hooked on lever, and its inner surface is smooth, be round and smooth
Intermediate shape.
The locking member is connect with cantilever by pivot pin and is fixed by circlip.
It is fixed with limit shaft on locking member, a waist type limit hole is equipped on cantilever, the waist type limit hole can
It is penetrated for limit shaft and movable.
Torsional spring is equipped between cantilever and locking member, on pivot pin, one end of torsional spring is against below limit shaft torsion spring set, another
End is against the rear of main shaft.
Main shaft, countershaft and the lever is arranged in parallel, and the countershaft and lever are each attached to the side in breaker
On plate, the main shaft passes through the side plate of breaker and is rotatablely connected with breaker side plate, and the side plate is generally fixed to break
In the cage of road device.
The cantilever both ends are offered in separating brake and the limiting slot that abuts with lever under "on" position.
Preferably, installation generally symmetrical in breaker of the invention is there are two bounce-proof device, i.e., cantilever, locking member,
Tension spring is respectively provided with two groups.
Breaker open operation bounce-proof device working principle of the invention are as follows:
When breaker open operation, tension spring release force makes main shaft, cantilever that locking member be driven to rotate counterclockwise, the locking
Limit shaft on part also by the effect of inertia force since on initial abutting waist type limit hole along position move downward, and lock
Tight part lower edge collides with lever, so that balancing out a part of impact force reduces the amplitude of rebound, produced by collision
Bounce effect lower limit axis have a upward movement, but under the limitation of waist type limit hole again at once stop upwards, turn
And move downward, it can hang over or be hooked on lever since the shape of the hook formation of locking member end meets it, in this way success
The centroid position for changing locking member, the inertia effect is utilized well and increases amplitude of the locking member to lower swing so that
The hook formation of locking member hangs over or is hooked on lever, prevents the rebound of moving contact of breaker by force.
After separating brake, the limit shaft on locking member resets to edge on waist type limit hole under the action of torsional spring, simultaneously
The hook formation of locking member, which is also separated with lever, returns to initial position, it is ensured that breaker shell feed motion again.
Compared with prior art, the present invention improves design to traditional locking member structure, and the end of locking member is set
It is set to the shape of hook-like, successfully changes the centroid position of locking member in this way, inertia effect increasing is utilized well
Amplitude of the locking member to lower swing, and since locking member has been designed to hook shape, it can be in locking member to the bottom
In dynamic process, the hook formation of locking member is linked up on lever, prevents the rebound of moving contact of breaker by force.Cause
This, result bounce-proof effect of the present invention is good, highly reliable.It is rounding off shape and since hook formation inner surface is smooth,
After separating brake, the limit shaft on locking member resets to edge on waist type limit hole under the action of torsional spring, while locking member
Hook formation can be separated quickly and easily with lever and return to initial position, it is ensured that breaker shell feed motion again.
Detailed description of the invention
Fig. 1 is breaker open operation bounce-proof device structural schematic diagram of the invention；
Fig. 2 is locking member of the invention and associated component structural schematic diagram；
Fig. 3 is bounce-proof device "on" position structural plan structural schematic diagram of the invention；
Fig. 4 is bounce-proof device "on" position structural upright structural schematic diagram of the invention；
Fig. 5 is bounce-proof device gate-dividing state structural plan structural schematic diagram of the invention；
Fig. 6 is bounce-proof device gate-dividing state structural upright structural schematic diagram of the invention；
Fig. 7 is that bounce-proof device separating brake of the invention finishes state plane structural schematic diagram；
Fig. 8 is that bounce-proof device separating brake of the invention finishes state schematic perspective view.
Figure label: 1- main shaft, 2- locking member, 3- cantilever, 4- waist type limit hole, 5- limit shaft, 6- lever, 7- tension spring,
8- countershaft, 9- torsional spring, 10- circlip, 11- pivot pin, 12- locking member lower edge.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
A kind of breaker open operation bounce-proof device, as shown in Figure 1 and Figure 2, including main shaft 1, locking member 2, cantilever 3, lever 6,
Tension spring 7 and countershaft 8, cantilever 3 are welded on main shaft 1, can be rotated together with main shaft 1, and a side end of cantilever 3 is breaker
Moving contact connecting pin, locking member 2 are connected on cantilever 3, and lever 6 is located at 3 lower section of cantilever, and 7 one end of tension spring is hung on countershaft 8, separately
One end is hung on cantilever 3, and locking member 2 is hook-shaped locking member, and its rear end is rotatably connected on cantilever 3, and front end offers hook-shaped
Structure.
Locking member 2 is connect with cantilever 3 by pivot pin 11 and is fixed by circlip 10.Limit shaft is fixed on locking member 2
5, a waist type limit hole 4 is equipped on cantilever 3, waist type limit hole 4 penetrates for limit shaft 5 and activity.In cantilever 3 and locking
Torsional spring 9 is equipped between part 2,9 sets of torsional spring on pivot pin 11,9 one end of torsional spring is against the lower section of limit shaft 5, and the other end is against main shaft 1
Rear.Main shaft 1, countershaft 8 and lever 6 are arranged in parallel, and countershaft 8 and lever 6 are each attached on the side plate in breaker, main shaft 1
Across breaker side plate and be rotatablely connected with breaker side plate, side plate is generally fixed in the cage of breaker.3 both ends of cantilever
It offers in separating brake and the limiting slot that is abutted with lever 6 under "on" position.
Hook formation is equipped with locking member lower edge 12, when breaker open operation, cantilever 3 and the lock being connected on cantilever 3
Tight part 2 rotates in an anti-clockwise direction, and cantilever 3 collides with lever 6 first, and locking member 2 has a to lower swing under effect of inertia
Movement so that locking member lower edge 12 is collided with lever 6, the hook formation of subsequent 2 front end of locking member hangs over or is hooked in lever
On 6.The shape of hook formation, which meets it, can hang over or be hooked on lever 6, and its inner surface is smooth, be rounding off shape.
In the present embodiment, there are two bounce-proof device, i.e. cantilever 3, locking member 2, tension spring 7 is respectively provided with two for breaker installation
Group.
As shown in Fig. 3-Fig. 8, the breaker open operation bounce-proof device working principle of the present embodiment are as follows:
When breaker open operation, 7 release force of tension spring makes main shaft 1, cantilever 3 that locking member 2 be driven to rotate counterclockwise, locking member
Limit shaft 5 on 2 also by the effect of inertia force since on initial abutting waist type limit hole 4 along position move downward, and
Locking member lower edge 12 collides with lever 6, so that balancing out a part of impact force reduces the amplitude of rebound, in collision institute
Generation bounce effect lower limit axis 5 have a upward movement, but under the limitation of waist type limit hole 4 again stop at once to
On, then move downward, it can hang over or be hooked on lever 6 since the shape of the hook formation of 2 end of locking member meets it, this
Sample successfully changes the centroid position of locking member 2, and the inertia effect is utilized well and increases width of the locking member 2 to lower swing
Degree prevents the rebound of moving contact of breaker so that the hook formation of locking member 2 is hung over or is hooked on lever 6 by force.
After separating brake, the limit shaft 5 on locking member 2 resets to edge on waist type limit hole 4 under the action of torsional spring 9,
The hook formation of locking member 2 also separates with lever 6 and returns to initial position simultaneously, it is ensured that breaker shell feed motion again.
The above description of the embodiments is intended to facilitate ordinary skill in the art to understand and use the invention.
Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general
Principle is applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, ability
Field technique personnel announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be of the invention
Within protection scope.
Claims (7)
1. a kind of breaker open operation bounce-proof device, including main shaft (1), locking member (2), cantilever (3), lever (6), tension spring (7)
And countershaft (8), the cantilever (3) are welded on main shaft (1), a side end of cantilever (3) is moving contact of breaker connecting pin,
The locking member (2) is connected on cantilever (3), and the lever (6) is located at below cantilever (3), the tension spring (7) one end
It hangs on countershaft (8), the other end is hung on cantilever (3), which is characterized in that the locking member (2) is hook-shaped locking member, thereafter
End is rotatably connected on cantilever (3), and front end offers hook formation；
The hook formation is equipped with locking member lower edge (12), when breaker open operation, cantilever (3) and is connected to cantilever
(3) locking member (2) on rotates in an anti-clockwise direction, and cantilever (3) collides with lever (6) first, and locking member (2) is made in inertia
There is a movement to lower swing that locking member lower edge (12) is made to collide with lever (6) under, subsequent locking member (2) front end
Hook formation is hung over or is hooked on lever (6)；
The shape of the hook formation, which meets it, can hang over or be hooked on lever (6)；
Described cantilever (3) both ends are offered in separating brake and the limiting slot that abuts with lever (6) under "on" position.
2. a kind of breaker open operation bounce-proof device according to claim 1, which is characterized in that the locking member (2)
It is connect by pivot pin (11) with cantilever (3) and is fixed by circlip (10).
3. a kind of breaker open operation bounce-proof device according to claim 2, which is characterized in that solid on locking member (2)
Surely there are limit shaft (5), a waist type limit hole (4) is equipped on cantilever (3), the waist type limit hole (4) is for limit shaft
(5) it penetrates and movable.
4. a kind of breaker open operation bounce-proof device according to claim 3, which is characterized in that in cantilever (3) and locking
Torsional spring (9) are equipped between part (2), torsional spring (9) covers on pivot pin (11), and torsional spring (9) one end is against below limit shaft (5), another
End is against the rear of main shaft (1).
5. a kind of breaker open operation bounce-proof device according to claim 4, which is characterized in that when breaker open operation,
Limit shaft (5) on the locking member (2) is opened from initial abutting waist type limit hole (4) along position by the effect of inertia force
Beginning moves downward, and when locking member lower edge (12) and lever (6) collide, the bounce caused by colliding acts on lower limit
Position axis (5) has a upward movement, but stops upwards at once again under the limitation of waist type limit hole (4), then moves downward,
And the hook formation of locking member (2) is hung over or is hooked on lever (6).
6. a kind of breaker open operation bounce-proof device according to claim 5, which is characterized in that after separating brake, lock
Limit shaft (5) on tight part (2) resets to edge on waist type limit hole (4) under the action of torsional spring (9), while locking member (2)
Hook formation also separates with lever (6) and returns to initial position, it is ensured that breaker shell feed motion again.
7. a kind of breaker open operation bounce-proof device according to claim 1, which is characterized in that the main shaft (1), secondary
Axis (8) and lever (6) are arranged in parallel, and the countershaft (8) and lever (6) are each attached on the side plate of breaker, described
Main shaft (1) passes through the side plate of breaker and is rotatablely connected with breaker side plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610398887.3A CN107481901B (en) | 2016-06-07 | 2016-06-07 | A kind of breaker open operation bounce-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610398887.3A CN107481901B (en) | 2016-06-07 | 2016-06-07 | A kind of breaker open operation bounce-proof device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107481901A CN107481901A (en) | 2017-12-15 |
| CN107481901B true CN107481901B (en) | 2019-09-03 |
Family
ID=60593718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610398887.3A Active CN107481901B (en) | 2016-06-07 | 2016-06-07 | A kind of breaker open operation bounce-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107481901B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2797696C2 (en) * | 2018-07-30 | 2023-06-07 | Шнейдер Электрик Эндюстри Сас | Electrical switching device with shared contacts |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110556273A (en) * | 2018-05-30 | 2019-12-10 | 江苏大全凯帆开关有限公司 | Main shaft limiting device |
| FR3084517B1 (en) | 2018-07-30 | 2021-06-04 | Schneider Electric Ind Sas | ELECTRICAL SWITCHING DEVICE WITH SEPARABLE CONTACTS |
| FR3100921B1 (en) | 2019-09-12 | 2021-09-24 | Schneider Electric Ind Sas | Electrical switching device with separable contacts |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1476622A (en) * | 2000-11-24 | 2004-02-18 | Drive train for displaceable contact on electrical power breaker | |
| CN101834100A (en) * | 2009-03-11 | 2010-09-15 | Ls产电株式会社 | Circuit braeker with rebound preventor |
| 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 |
| CN203277255U (en) * | 2013-05-22 | 2013-11-06 | 上海良信电器股份有限公司 | Bouncing-prevention mechanism for breaker |
| EP2835814A1 (en) * | 2013-08-07 | 2015-02-11 | ABB S.p.A. | Circuit breaker |
| CN205752071U (en) * | 2016-06-07 | 2016-11-30 | 上海电器股份有限公司人民电器厂 | Breaker open operation bounce-proof device |
-
2016
- 2016-06-07 CN CN201610398887.3A patent/CN107481901B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1476622A (en) * | 2000-11-24 | 2004-02-18 | Drive train for displaceable contact on electrical power breaker | |
| CN101834100A (en) * | 2009-03-11 | 2010-09-15 | Ls产电株式会社 | Circuit braeker with rebound preventor |
| 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 |
| CN203277255U (en) * | 2013-05-22 | 2013-11-06 | 上海良信电器股份有限公司 | Bouncing-prevention mechanism for breaker |
| EP2835814A1 (en) * | 2013-08-07 | 2015-02-11 | ABB S.p.A. | Circuit breaker |
| CN205752071U (en) * | 2016-06-07 | 2016-11-30 | 上海电器股份有限公司人民电器厂 | Breaker open operation bounce-proof device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2797696C2 (en) * | 2018-07-30 | 2023-06-07 | Шнейдер Электрик Эндюстри Сас | Electrical switching device with shared contacts |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107481901A (en) | 2017-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107481901B (en) | A kind of breaker open operation bounce-proof device | |
| CN202090726U (en) | Inertia locking device | |
| CN102054631A (en) | Anti-bouncer for circuit breaker | |
| KR101122190B1 (en) | A safety arrangement | |
| CN103573027B (en) | Prevent door handle device for vehicle and the vehicle of opening car door lock when side impact | |
| CN205752071U (en) | Breaker open operation bounce-proof device | |
| CN201985050U (en) | Bounce-proof device of circuit breaker | |
| CN103950814A (en) | Car door lock coupler device | |
| WO2019227653A1 (en) | Main shaft limiting device | |
| CN209293598U (en) | A kind of automobile handle inertia locking structure | |
| CN101826425A (en) | Operating mechanism of electric switch | |
| CN213691936U (en) | Circuit breaker | |
| CN108868402B (en) | Novel household door stopper | |
| CN104733253B (en) | Switch disconnector with three-color display function | |
| EP1336186B1 (en) | Drive train for a displaceable contact on an electrical power breaker | |
| CN108137273B (en) | Lift appliance | |
| CN205542458U (en) | Automatic change over switch prevents bouncer | |
| CN210286376U (en) | Link mechanism | |
| CN208142042U (en) | Stroke switchgear for piling suspension transport trolley group | |
| CN112201547A (en) | Circuit breaker | |
| CN205367374U (en) | Anticollision support | |
| KR100854739B1 (en) | governor for elevator | |
| CN110203791A (en) | Limiter of speed | |
| CN107481897A (en) | A kind of resilience-proof device of breaker | |
| CN212934507U (en) | Improved structure of auxiliary switch of circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |