CN107481901A - A kind of breaker open operation bounce-proof device - Google Patents
A kind of breaker open operation bounce-proof device Download PDFInfo
- Publication number
- CN107481901A CN107481901A CN201610398887.3A CN201610398887A CN107481901A CN 107481901 A CN107481901 A CN 107481901A CN 201610398887 A CN201610398887 A CN 201610398887A CN 107481901 A CN107481901 A CN 107481901A
- 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.)
- Granted
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 device, including main shaft, locking member, cantilever, lever, extension spring and countershaft, cantilever is welded on main shaft, and locking member is connected on cantilever, and lever is located at below cantilever, extension 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 meets that it can hang over or be hooked on lever.Compared with prior art, the present invention is improved design to traditional locking member structure, shape by the end set of locking member into hook-like, the centroid position of locking member is so successfully changed, make use of the inertia effect to increase amplitude of the locking member to lower swing well, and because locking member has been designed to hook shape, therefore, can be during locking member be to lower swing so that the hook formation of locking member can be linked up with lever, prevent the rebound of moving contact of breaker by force.
Description
Technical field
The invention belongs to low voltage electrical apparatus technology field, more particularly, to a kind of breaker open operation bounce-proof device.
Background technology
Quickly, and breaker mechanism all uses rigid material to speed during due to breaker open operation, so in general
If low-voltage circuit breaker, without resilience-proof device, moving contact can all produce resilience during separating brake, and excessive return
Bullet can cause the distance between movable contact and stationary contact closely to cause arc reignition excessively, cause moving contact to be burnt with static contact
Ruin, or even cause more serious consequence.So solves the snap-off-distance mistake of breaker moving contact during separating brake
The problem of being always primary study in low voltage electrical apparatus industry greatly, but resilience-proof device typically now is in practice
It is middle to act on but unobvious, can not solve the problems, such as that resilience is excessive.
Although industry is directed to finding always a kind of not only reliable but also simple mode and realizes bounce-proof function, one
Directly without particularly preferred scheme.The bounce-proof device of known breaker, including main shaft, driving member, connecting rod, only
Gear, locking member, pivot pin, gag lever post side plate, reduction torsion spring, described side plate are fixed in whole breaker cage,
Play support limit to breaker mechanism part, main shaft is through the spacing hole on side plate and can rotate, driving member
It is fixed on main shaft, connecting rod is connected with main shaft, and stop is fixed on side plate, and pivot pin is fixed on side plate, locking
Part is through pivot pin and can be rotated around pivot pin, and gag lever post is fixed on locking member, the limit that gag lever post is stretched on driving member
Position hole is simultaneously limited that hole is spacing, and reduction torsion spring is enclosed on pivot pin, and its effect is to make breaker in stable state, locks
Tight part will not fall down and influence breaker closing.Generally symmetrical two bounce-proofs that are provided with fill in breaker
Put.Its bounce-proof principle is：During breaker open operation, locking member rotates in an anti-clockwise direction together with main shaft, works as biography
Moving part and stop collision rift, moving contact of breaker rebound with driving member, but locking member is in the presence of inertia force,
Still there is the trend rotated counterclockwise, certain rotation is had relative to driving member so that locking member is collided and risen with stop
To the effect of bounce-proof.This known bounce-proof device can sometimes play bounce-proof in Short-Circuit High Current,
But reliability is not high；It can hardly be worked in short-circuit low current.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide it is a kind of it is simple in construction,
The high breaker open operation bounce-proof device of reliability.
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, extension spring and countershaft,
Described cantilever is welded on main shaft, can be rotated together with main shaft, and a side end of cantilever is touched for breaker is dynamic
Head connection end, described locking member are connected on cantilever, and described lever is located at below cantilever, described extension spring one
End is hung on countershaft, and the other end is hung on cantilever, and described locking member is hook-shaped locking member, and its rear end is rotatablely connected
On cantilever, its front end offers hook formation.
Described hook formation is provided with locking member lower edge, when breaker open operation, cantilever and is connected on cantilever
Locking member rotate in an anti-clockwise direction, cantilever collides with lever first, locking member have under effect of inertia to
The motion of lower swing makes locking member lower edge be collided with lever, the hook formation of subsequent locking member front end hang over or
It is hooked on lever.
The shape of described hook formation meets that it can hang over or be hooked on lever, and its inner surface is smooth, for circle
Sliding intermediate shape.
Described locking member is connected with cantilever by pivot pin and fixed by jump ring.
Limit shaft is fixed with locking member, a waist type spacing hole, described waist type spacing hole are provided with cantilever
It is available for limit shaft to penetrate simultaneously activity.
Torsion spring is provided between cantilever and locking member, on pivot pin, one end is against below limit shaft torsion spring set,
The other end is against the rear of main shaft.
Described main shaft, countershaft and lever is be arranged in parallel, and described countershaft is each attached in breaker with lever
On side plate, described main shaft passes through the side plate of breaker and is rotatablely connected with breaker side plate, and described side plate is general
It is fixed in the cage of breaker.
Described cantilever both ends are offered in separating brake and the stopper slot that is abutted under "on" position with lever.
Preferably, it is generally symmetrical in breaker of the invention that two bounce-proof devices, i.e. cantilever, locking are installed
Part, extension spring are respectively provided with two groups.
The present invention breaker open operation bounce-proof device operation principle be：
When breaker open operation, extension spring release force makes main shaft, cantilever drive locking member to rotate counterclockwise, described
Limit shaft on locking member also by inertia force effect since it is initial be close on waist type spacing hole along position downwards
Motion, and locking member lower edge is collided with lever, and rebound is reduced so as to balance out a part of impulsive force
Amplitude, there is a upward motion in bounce effect lower limit axle caused by collision, but in waist type spacing hole
Limitation is lower, and stopping is upward at once again, then moves downward, because the shape of the hook formation of locking member end meets
It can hang over or be hooked on lever, so successfully change the centroid position of locking member, make use of inertia well
Effect increases amplitude of the locking member to lower swing so that the hook formation of locking member hangs over or is hooked on lever, by force
Row prevents the rebound of moving contact of breaker.
After separating brake, the limit shaft on locking member resets to edge on waist type spacing hole in the presence of torsion spring, together
When locking member hook formation also separated with lever and return to initial position, it is ensured that breaker shell feed motion again.
Compared with prior art, the present invention is improved design to traditional locking member structure, by the end of locking member
Portion is arranged like the shape of hook, so successfully changes the centroid position of locking member, make use of well used
Property effect increases amplitude of the locking member to lower swing, and because locking member has been designed to hook shape, therefore,
Can be during locking member be to lower swing so that the hook formation of locking member can be linked up with lever, hindered by force
The only rebound of moving contact of breaker.Therefore, result bounce-proof effect of the present invention is good, highly reliable.And due to hook
Shape structure interior surface is smooth, is rounding off shape, after separating brake, the limit shaft on locking member is in torsion spring
Edge on waist type spacing hole is reset under effect, while the hook formation of locking member can be separated quickly and easily with lever
Return to initial position, it is ensured that breaker shell feed motion again.
Brief description of the drawings
Fig. 1 is the breaker open operation bounce-proof device structural representation of the present invention；
Fig. 2 is the locking member and associated component structural representation of the present invention；
Fig. 3 is the bounce-proof device "on" position structural plan structural representation of the present invention；
Fig. 4 is the bounce-proof device "on" position structural upright structural representation of the present invention；
Fig. 5 is the bounce-proof device gate-dividing state structural plan structural representation of the present invention；
Fig. 6 is the bounce-proof device gate-dividing state structural upright structural representation of the present invention；
The bounce-proof device separating brake that Fig. 7 is the present invention finishes state plane structural representation；
The bounce-proof device separating brake that Fig. 8 is the present invention finishes state dimensional structure diagram.
Label in figure：1- main shafts, 2- locking members, 3- cantilevers, 4- waist type spacing holes, 5- limit shafts, 6- levers, 7-
Extension spring, 8- countershafts, 9- torsion springs, 10- jump rings, 11- pivot pins, 12- locking member lower edges.
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 it is main shaft 1, locking member 2, outstanding
Arm 3, lever 6, extension spring 7 and countershaft 8, cantilever 3 are welded on main shaft 1, can be turned together with main shaft 1
Dynamic, a side end of cantilever 3 is moving contact of breaker connection end, and locking member 2 is connected on cantilever 3, lever 6
Positioned at the lower section of cantilever 3, the one end of extension spring 7 is hung on countershaft 8, and the other end is hung on cantilever 3, and locking member 2 is hook
Shape locking member, its rear end are rotatably connected on cantilever 3, and its front end offers hook formation.
Locking member 2 is connected with cantilever 3 by pivot pin 11 and fixed by jump ring 10.It is fixed with locking member 2
Limit shaft 5, is provided with a waist type spacing hole 4 on cantilever 3, and waist type spacing hole 4 is available for limit shaft 5 to penetrate simultaneously
Activity.Torsion spring 9 is provided between cantilever 3 and locking member 2, torsion spring 9 is enclosed on pivot pin 11, the one end of torsion spring 9
The lower section of limit shaft 5 is against, the other end is against the rear of main shaft 1.Main shaft 1, countershaft 8 and lever 6 is parallel sets
Put, countershaft 8 is each attached on the side plate in breaker with lever 6, and main shaft 1 passes through the side plate of breaker and with breaking
Road device side plate rotation connection, side plate are generally fixed in the cage of breaker.The both ends of cantilever 3 offer separating brake with
The stopper slot abutted under "on" position with lever 6.
Hook formation is provided with locking member lower edge 12, when breaker open operation, cantilever 3 and is connected to cantilever 3
On locking member 2 rotate in an anti-clockwise direction, cantilever 3 collides with lever 6 first, locking member 2 inertia make
There is the individual motion to lower swing locking member lower edge 12 is collided with lever 6 under, before subsequent locking member 2
The hook formation at end is hung over or is hooked on lever 6.The shape of hook formation meets that it can hang over or be hooked in lever 6
On, and its inner surface is smooth, is rounding off shape.
In the present embodiment, breaker is provided with two bounce-proof devices, i.e. cantilever 3, locking member 2, extension spring 7 is equal
Set two groups.
As shown in Fig. 3-Fig. 8, the breaker open operation bounce-proof device operation principle of the present embodiment is：
When breaker open operation, the release force of extension spring 7 makes main shaft 1, cantilever 3 drive locking member 2 to rotate counterclockwise,
Limit shaft 5 on locking member 2 also by inertia force effect since it is initial be close on waist type spacing hole 4 along position
Move downward, and locking member lower edge 12 collides with lever 6, so as to balance out a part of impulsive force drop
The amplitude of low rebound, there is a upward motion in bounce effect lower limit axle 5 caused by collision, but
Stop upwards at once again under the limitation of waist type spacing hole 4, then move downward, due to the hook of the end of locking member 2
The shape of shape structure meets that it can be hung over or be hooked on lever 6, so successfully changes the barycenter position of locking member 2
Put, make use of the inertia effect to increase amplitude of the locking member 2 to lower swing well so that locking member 2 it is hook-shaped
Structure is hung over or is hooked on lever 6, prevents the rebound of moving contact of breaker by force.
After separating brake, the limit shaft 5 on locking member 2 resets to waist type spacing hole 4 in the presence of torsion spring 9
Upper edge, while the hook formation of locking member 2 also separates with lever 6 and returns to initial position, it is ensured that breaker shell is again
Feed motion.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using hair
It is bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and herein
The General Principle of explanation is applied in other embodiment without by performing creative labour.Therefore, the present invention is unlimited
In above-described embodiment, according to the announcement of the present invention, do not depart from that scope made changes those skilled in the art
Entering and change all should be within protection scope of the present invention.
Claims (10)
1. a kind of breaker open operation bounce-proof device, including main shaft (1), locking member (2), cantilever (3), shelves
Bar (6), extension spring (7) and countershaft (8), described cantilever (3) are welded on main shaft (1), cantilever (3)
A side end be moving contact of breaker connection end, described locking member (2) is connected on cantilever (3), described
Lever (6) be located at below cantilever (3), described extension spring (7) one end is hung on countershaft (8), the other end
Hang on cantilever (3), it is characterised in that described locking member (2) is hook-shaped locking member, and its rear end, which rotates, to be connected
It is connected on cantilever (3), its front end offers hook formation.
2. a kind of breaker open operation bounce-proof device according to claim 1, it is characterised in that described
Hook formation is provided with locking member lower edge (12), when breaker open operation, cantilever (3) and is connected to cantilever (3)
On locking member (2) rotate in an anti-clockwise direction, cantilever (3) collides with lever (6) first, locking member
(2) the individual motion to lower swing locking member lower edge (12) is touched with lever (6) under effect of inertia
Hit, the hook formation of subsequent locking member (2) front end is hung over or is hooked on lever (6).
3. a kind of breaker open operation bounce-proof device according to claim 1, it is characterised in that described
The shape of hook formation meets that it can be hung over or be hooked on lever (6).
4. a kind of breaker open operation bounce-proof device according to claim 1, it is characterised in that described
Locking member (2) is connected with cantilever (3) by pivot pin (11) and fixed by jump ring (10).
5. a kind of breaker open operation bounce-proof device according to claim 4, it is characterised in that locking
Limit shaft (5) is fixed with part (2), a waist type spacing hole (4) is provided with cantilever (3), it is described
Waist type spacing hole (4) is available for limit shaft (5) to penetrate simultaneously activity.
6. a kind of breaker open operation bounce-proof device according to claim 5, it is characterised in that in cantilever
(3) torsion spring (9) is provided between locking member (2), torsion spring (9) is enclosed on pivot pin (11), torsion spring (9)
One end is against below limit shaft (5), and the other end is against the rear of main shaft (1).
7. a kind of breaker open operation bounce-proof device according to claim 6, it is characterised in that work as open circuit
During device separating brake, the limit shaft (5) on described locking member (2) is close to waist type by the effect of inertia force from initial
Start to move downward along position on spacing hole (4), when locking member lower edge (12) and lever (6) collide
When, there is a upward motion in bounce effect lower limit axle (5) caused by collision, but it is spacing in waist type
Stop upwards at once again under the limitation in hole (4), then move downward, and the hook formation of locking member (2) is hung over
Or it is hooked on lever (6).
8. a kind of breaker open operation bounce-proof device according to claim 6, it is characterised in that work as separating brake
After, the limit shaft (5) on locking member (2) resets to waist type spacing hole (4) in the presence of torsion spring (9)
Upper edge, while the hook formation of locking member (2) also separates with lever (6) and returns to initial position, it is ensured that breaker
Shell feed motion again.
9. a kind of breaker open operation bounce-proof device according to claim 1, it is characterised in that described
Main shaft (1), countershaft (8) and lever (6) be arranged in parallel, and described countershaft (8) is equal with lever (6)
It is fixed on the side plate of breaker, described main shaft (1) passes through the side plate of breaker and rotated with breaker side plate
Connection.
10. a kind of breaker open operation bounce-proof device according to claim 1, it is characterised in that described
Cantilever (3) both ends are offered in separating brake and the stopper slot that is abutted under "on" position with lever (6).
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 true CN107481901A (en) | 2017-12-15 |
| CN107481901B CN107481901B (en) | 2019-09-03 |
Family
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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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019227653A1 (en) * | 2018-05-30 | 2019-12-05 | 大全集团有限公司 | Main shaft limiting device |
| FR3084517A1 (en) * | 2018-07-30 | 2020-01-31 | Schneider Electric Industries Sas | ELECTRICAL SWITCHING APPARATUS WITH SEPARABLE CONTACTS |
| EP3792949A1 (en) * | 2019-09-12 | 2021-03-17 | Schneider Electric Industries SAS | Electrical switching apparatus with separable contacts |
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| 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 |
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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 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019227653A1 (en) * | 2018-05-30 | 2019-12-05 | 大全集团有限公司 | Main shaft limiting device |
| FR3084517A1 (en) * | 2018-07-30 | 2020-01-31 | Schneider Electric Industries Sas | ELECTRICAL SWITCHING APPARATUS WITH SEPARABLE CONTACTS |
| EP3605581A1 (en) * | 2018-07-30 | 2020-02-05 | Schneider Electric Industries SAS | Electrical switching device with separable contacts |
| US11114255B2 (en) | 2018-07-30 | 2021-09-07 | Schneider Electric Industries Sas | Anti-rebounding lever within a switching device |
| EP3792949A1 (en) * | 2019-09-12 | 2021-03-17 | Schneider Electric Industries SAS | Electrical switching apparatus with separable contacts |
| FR3100921A1 (en) * | 2019-09-12 | 2021-03-19 | Schneider Electric Industries Sas | Electrical switching device with separable contacts |
| US11062858B2 (en) | 2019-09-12 | 2021-07-13 | Schneider Electric Industries Sas | Electrical switching unit with separable contacts |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107481901B (en) | 2019-09-03 |
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