CN107946148A - Double breaking points small type circuit breaker operating mechanism - Google Patents
Double breaking points small type circuit breaker operating mechanism Download PDFInfo
- Publication number
- CN107946148A CN107946148A CN201711371411.1A CN201711371411A CN107946148A CN 107946148 A CN107946148 A CN 107946148A CN 201711371411 A CN201711371411 A CN 201711371411A CN 107946148 A CN107946148 A CN 107946148A
- Authority
- CN
- China
- Prior art keywords
- tripping
- handle
- circuit breaker
- breaking points
- axis pin
- 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
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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
- H01H71/24—Electromagnetic mechanisms
-
- 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
-
- 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
Abstract
The present invention relates to a kind of double breaking points small type circuit breaker operating mechanism, the operating mechanism includes mechanism rack, handle, first torsional spring, lower retainer, second torsional spring, upper retainer, latch components, double breaking points moving contact component, latch components include two rocking arms, the first axis pin and the second axis pin that are separately positioned between two rocking arms and the 3rd axis pin, tripping, detain again, clamp spring, lock, 3rd torsional spring, tension spring is provided between second axis pin and the side plate of mechanism rack, L-shaped limiting section is provided with one end of the upper retainer, the afterbody of the lower retainer is provided with and the matched spoon type body of limiting section, and the arc transition being connected with spoon type body transition is provided with lower retainer, the limiting section is fastened on lower retainer and forms spacing cooperation with spoon type body.The present invention has the advantages that high breaking, stable and reliable for performance, service life is long.
Description
Technical field
The present invention relates to a kind of miniature circuit breaker, and in particular to a kind of double breaking points small type circuit breaker operating mechanism.
Background technology
At present, power industry industry develops rapidly, and miniature circuit breaker is widely applied to daily family as protective device
With in equipment and various public place electric wirings, it not only can with disjunction with connect normal load current, but also work as circuit
There is overload, short circuit when failure, automatically cut off circuit, the protection person and property safety.What existing miniature circuit breaker used
Disjunction structure is single-break formula, i.e., is engaged by single moving contact with corresponding static contact and realizes disjunction or closure, still
For single-break formula since electric current is larger in breaking course, current limiting performance is poor, and disjunction is not prompt enough between causing contact, causes to touch
Head scaling loss is than more serious, so as to influence the service life of product.And the miniature circuit breaker also there are divide-shut brake speed slowly, disjunction
The defects of energy force difference.
The content of the invention
The defects of it is an object of the invention to overcome the prior art, there is provided a kind of high breaking, it is stable and reliable for performance, use the longevity
Order long double breaking points small type circuit breaker operating mechanism.
To achieve the above object, the present invention uses a kind of double breaking points small type circuit breaker operating mechanism, including mechanism rack, rotation
The handle being arranged in the first axle of mechanism rack, the first torsional spring, the corresponding handle that are connected between handle and the side plate of mechanism rack
Lower end at be rotatably arranged on the second axis of mechanism rack lower retainer, be connected between lower retainer and the side plate of mechanism rack
The second torsional spring, be rotatably arranged on the 3rd axis of mechanism rack and upper retainer matched with lower retainer, with handle link
The latch components of setting, the double breaking points moving contact component set with latch components linkage, the latch components include two and turn
The dynamic rocking arm being arranged on the 3rd axis, the first axis pin being separately positioned between two rocking arms and the second axis pin and the 3rd axis pin,
The tripping on the first axis pin and with handle linkage setting is rotatably arranged on, is rotatably arranged on the second axis pin and is matched somebody with somebody with tripping linkage
That closes detains, clamps and detain clamp spring between the side plate of mechanism rack again, be rotatably arranged on the 3rd axis pin and be engaged with detaining again again
Lock, be connected to rocking arm and lock between the 3rd torsional spring, be provided between second axis pin and the side plate of mechanism rack
Tension spring, is provided with L-shaped limiting section on one end of the upper retainer, the afterbody of the lower retainer is provided with and limits
The matched spoon type body in position portion, and the arc transition being connected with spoon type body transition is provided with lower retainer, described is spacing
Portion is fastened on lower retainer and forms spacing cooperation with spoon type body.
The beneficial effect of said structure is：There is the miniature circuit breaker high breaking, stable and reliable for performance, service life to grow
Advantage, lower retainer afterbody are designed to spoon-shaped structure, and upper retainer is provided with the L-type limiting section with spoon type mates, is closing
During lock, upper retainer is slided along lower retainer spoon type, and to complete fastening, moving contact stop motion is reached, handle continues
Promote, after dead point is crossed by mechanism to be operated, moving contact acts rapidly, and the movable contact of moving contact and the stationary contact point contact of static contact, reach
The purpose closed a floodgate to moment, before the design of the structure effectively prevents moving contact from being contacted with static contact, there are band because high-tension
The contact electrical wear come, has extended breaker service life.
Especially, the double breaking points moving contact component include moving contact, be connected to moving contact and two rocking arms it
Between two touch springs, one end of the moving contact is provided with two connecting portions, is provided with each connecting portion and is sleeved on
Waist-shaped hole on three axis, the other end of the moving contact are provided with two C-shaped contact sites, and each contact site is towards static contact
Side on be both provided with groove, point is welded with movable contact in the groove.Two are provided with the contact site of moving contact dynamic to touch
Point, is provided with waist-shaped hole on the connecting portion of moving contact, and moving contact can be adjusted in two touch springs, ensure two movable contacts with
The stationary contact of static contact is reliably bonded, the influence that temperature rise brings mechanism and handle between reduction dynamic/static contact.And moving contact
Contact site is designed to c-type, can promote electric arc fast transfer in disjunction, reduces the electrical wear in breaking course, and enhancing is resolved
The electric life of road device, groove location can spot welding silver movable contact, greatly improve the breaking capacity of breaker.
Especially, described buckle again is provided with limiting slot at corresponding tripping, is provided with the tripping and limiting slot
Matched drive division, the drive division can be slided with tripping action in limiting slot, and form tripping and the linkage detained again
Coordinate.The matched drive division of limiting slot for being provided with tripping and detaining again, is linked so as to fulfill tripping with what is detained again, closes
During lock, drive division is interlocked with limiting slot；During separating brake, drive division is separated with limiting slot, and clamp spring driving is detained again returns to initial bit
Put.
Especially, described buckle again is provided with the Z-shaped holding section of basic configuration at corresponding lock, on the lock
Be provided with the matched buckling parts in holding section, during combined floodgate, the holding section is interlocked with buckling parts, and form lock with again
The spacing cooperation of button.During breaker closing, lock is interlocked with detaining again, and lock has locking function；When short circuit occurs for circuit,
The mandril of the buckle releaser of circuit breaker electric magnetic system promotes lock, lock with deduct points again from, so as to fulfill the quick acting switching-off of switch, when
When circuit overloads, bimetal leaf temperature distortion, bimetal leaf stirs lock by pull rod, lock with deduct points again from so that
Realize the quick acting switching-off of breaker.
Especially, the upper end of the tripping is provided with combined floodgate index plane, and the red mark that closes a floodgate is provided with combined floodgate index plane
Will.When closing a floodgate, user can see the red combined floodgate Warning Mark in tripping out of Shell of circuit breaker indicator hole, so as to fulfill
The combined floodgate instruction of breaker.
Especially, it is connected with two connecting rods between the handle and tripping, and forms being linked for handle and tripping,
One end of two connecting rods is connected in the connecting hole of handle, and the other end of two connecting rods is connected to the through hole of tripping
It is interior.Two connecting rods be connected to handle, tripping both sides on, handle and tripping transmission it is more reliable, also allow for handle, tripping,
Assembling between connecting rod.
Especially, Access Division is provided with the lower retainer at corresponding second torsional spring, the second torsion spring set is mounted in second
On axis, one end of the second torsional spring is contradicted contradicts the clamping block on side plate in Access Division, the other end of the second torsional spring.Second torsional spring
It is installed between lower retainer and side plate, easy to the installation of the second torsional spring, also ensures that lower retainer being capable of reliable reset.
Brief description of the drawings
Fig. 1 is internal structure stereogram of the embodiment of the present invention.
Fig. 2 is sectional view of the embodiment of the present invention.
Fig. 3 removes the stereogram after a side plate for the embodiment of the present invention.
Fig. 4 is the stereogram of retainer under the embodiment of the present invention.
Fig. 5 is the stereogram of retainer in the embodiment of the present invention.
Fig. 6 is the stereogram of tripping of the embodiment of the present invention.
Fig. 7 is the stereogram that the embodiment of the present invention is detained again.
Fig. 8 is the stereogram of lock of the embodiment of the present invention.
Fig. 9 is the stereogram of moving contact of the embodiment of the present invention.
Embodiment
As shown in Fig. 1~9, the embodiment of the present invention is a kind of double breaking points small type circuit breaker operating mechanism, including mechanism rack 10,
The handle 11 that is rotatably arranged in the first axle 102 of mechanism rack 10, be connected between handle 11 and the side plate 101 of mechanism rack 10
First torsional spring 12, correspond to the lower retainer 13 being rotatably arranged at the lower end of handle 11 on second axis 103 of mechanism rack 10, connection
The second torsional spring 14 between lower retainer 13 and the side plate 101 of mechanism rack 10, the 3rd axis 104 for being rotatably arranged on mechanism rack 10
Upper retainer 15 upper and matched with lower retainer 13, the latch components 20 and latch components 20 set with the linkage of handle 11
Link the double breaking points moving contact component 30 set, and the latch components 20 are rotatably arranged on the 3rd axis 104 including two
Rocking arm 21, the first axis pin 22 being separately positioned between two rocking arms 21 and the second axis pin 23 and the 3rd axis pin 24, rotate setting
The tripping 25 that is set on the first axis pin 22 and with the linkage of handle 11, be rotatably arranged on the second axis pin 23 and link with tripping 25
What is coordinated detains 26, clamps and detain clamp spring 27 between 26 and the side plate 101 of mechanism rack 10 again, be rotatably arranged on the 3rd axis pin 24 again
And with detaining 26 matched locks 28, the 3rd torsional spring 29 being connected between rocking arm 21 and lock 28, second axis pin again
Tension spring 231 is provided between 23 and the side plate 101 of mechanism rack 10, is provided with one end of the upper retainer 15 L-shaped
Limiting section 151, the afterbody of the lower retainer 13 are provided with and the matched spoon type body 131 of limiting section 151, and lower retainer
The arc transition 132 being connected with 131 transition of spoon type body is provided with 13, the limiting section 151 is fastened on lower retainer 13
Above and with spoon type body 131 form spacing cooperation.Two connecting rods 111 are connected between the handle 11 and tripping 25, and are formed
Handle 11 is linked with tripping 25, and one end of described two connecting rods 111 is connected in the connecting hole of handle 11, and two
The other end of connecting rod 111 is connected in the through hole 251 of tripping 25.Two connecting rods be connected to handle, tripping both sides on, hand
Handle and tripping transmission are more reliable, also allow for the assembling between handle, tripping, connecting rod.As shown in Figure 1, the first axle, second
Laser welding is respectively adopted between two side plates of mechanism rack in axis, the 3rd axis, and first axle, the second axis, the 3rd axis play fixation
The effect of two side plates.
As shown in Fig. 1,2,3,9, the double breaking points moving contact component 30 includes moving contact 31, is connected to moving contact
Two touch springs 32 between 31 and two rocking arms 21, one end of the moving contact 31 are provided with two connecting portions 311, respectively
The waist-shaped hole 312 being sleeved on the 3rd axis 104 is provided with connecting portion 311, the other end of the moving contact 31 is provided with two
A C-shaped contact site 313, each contact site 313 is towards being both provided with groove 314, the groove 314 on the side of static contact
Interior point is welded with movable contact 315.Two movable contacts are provided with the contact site of moving contact, waist type is provided with the connecting portion of moving contact
Hole, can ensure moving contact in the range of certain angle, buffered and adjusted by the dynamic balance of two touch springs, when closing a floodgate,
Ensure that two movable contacts can be reliably bonded with static contact component, the shadow that temperature rise brings mechanism and handle between reduction dynamic/static contact
Ring.And the contact site of moving contact is designed to c-type, electric arc fast transfer can be promoted in disjunction, reduce the electricity in breaking course
Abrasion, enhances the electric life of breaker, groove location can spot welding silver movable contact, the breaking capacity of breaker is carried significantly
It is high.
As shown in Fig. 1,2,3,6,7, described detaining again corresponds on 26 and limiting slot 261 is provided with tripping 25, the jump
Drive division 251 matched with limiting slot 261 is provided with button 25, the drive division 251 can be spacing with the action of tripping 25
Slide in groove 261, and form tripping 25 and be linked with detaining 26 again.It is provided with tripping matched with the limiting slot detained again
Drive division, is linked so as to fulfill tripping with what is detained again, and during combined floodgate, drive division is interlocked with limiting slot；During separating brake, drive division
It is separated with limiting slot, clamp spring driving is detained again returns to initial position.As shown in Fig. 2,7,8, described detains corresponding lock on 26 again
The Z-shaped holding section 262 of basic configuration is provided with 28, is provided with the lock 28 and 262 matched button of holding section
Conjunction portion 281, during combined floodgate, the holding section 262 is interlocked with buckling parts 281, and forms lock 28 and spacing match somebody with somebody with detain 26 again
Close.During breaker closing, lock is interlocked with detaining again, and lock has locking function；When short circuit occurs for circuit, breaker electromagnetism
The mandril of the buckle releaser of system promotes lock, and lock with deducting points from so as to fulfill the quick acting switching-off of switch, when circuit occurred again
During load, bimetal leaf temperature distortion, bimetal leaf stirs lock by pull rod, and lock with deducting points from so as to fulfill breaker again
Quick acting switching-off.The upper end of the tripping 26 is provided with combined floodgate index plane 263, and red conjunction is provided with combined floodgate index plane 263
Lock mark.When closing a floodgate, user can see the red combined floodgate Warning Mark in tripping out of Shell of circuit breaker indicator hole, so that
Realize the combined floodgate instruction of breaker.
As shown in Figure 2,4, Access Division 133 is provided with the lower retainer 13 at corresponding second torsional spring 14, second turns round
Spring 14 is sleeved on the second axis 103, and one end of the second torsional spring 14 is contradicted to be contradicted in Access Division 133, the other end of the second torsional spring 14
Clamping block on side plate 101.Second torsional spring is installed between lower retainer and side plate, easy to the installation of the second torsional spring, is also protected
The lower retainer of card being capable of reliable reset.
The miniature circuit breaker has the advantages that high breaking, stable and reliable for performance, service life is long, lower retainer afterbody design
Into spoon-shaped structure, upper retainer is provided with the L-type limiting section with spoon type mates, in making process, upper retainer along
Lower retainer spoon type is slided, and to complete fastening, moving contact stop motion is reached, handle continues to press on, and dead point is crossed by mechanism to be operated
Afterwards, moving contact acts rapidly, the movable contact of moving contact and the stationary contact point contact of static contact, achievees the purpose that moment closes a floodgate, the knot
Before the design of structure effectively prevents moving contact from being contacted with static contact, there is the contact electrical wear brought because high-tension, extend
Breaker service life.
Claims (7)
- A kind of 1. double breaking points small type circuit breaker operating mechanism, it is characterised in that：The operating mechanism includes mechanism rack, is rotatably arranged on Handle in the first axle of mechanism rack, the first torsional spring being connected between handle and the side plate of mechanism rack, the lower end of corresponding handle Lower retainer that place is rotatably arranged on the second axis of mechanism rack, second be connected between lower retainer and the side plate of mechanism rack Torsional spring, be rotatably arranged on the 3rd axis of mechanism rack and upper retainer matched with lower retainer, with handle linkage set Latch components, the double breaking points moving contact component set with latch components linkage, the latch components include two rotations and set Rocking arm on the 3rd axis, the first axis pin being separately positioned between two rocking arms and the second axis pin and the 3rd axis pin, rotate and set The tripping on the first axis pin and with handle linkage setting is put, is rotatably arranged on the second axis pin and is linked again with tripping Button, clamp detain clamp spring between the side plate of mechanism rack again, be rotatably arranged on the 3rd axis pin and with detain again matched lock, The 3rd torsional spring being connected between rocking arm and lock, is provided with tension spring, institute between second axis pin and the side plate of mechanism rack L-shaped limiting section is provided with the one end for the upper retainer stated, the afterbody of the lower retainer is provided with and limiting section phase The spoon type body of cooperation, and the arc transition being connected with spoon type body transition is provided with lower retainer, the limiting section fastens Spacing cooperation is formed on lower retainer and with spoon type body.
- 2. double breaking points small type circuit breaker operating mechanism according to claim 1, it is characterised in that：The double break crawl touches Head assembly includes moving contact, two touch springs being connected between moving contact and two rocking arms, the moving contact One end is provided with two connecting portions, is provided with the waist-shaped hole being sleeved on the 3rd axis on each connecting portion, the moving contact it is another One end is provided with two C-shaped contact sites, and each contact site is towards being both provided with groove, the groove on the side of static contact Interior point is welded with movable contact.
- 3. double breaking points small type circuit breaker operating mechanism according to claim 1, it is characterised in that：Described buckles correspondence again Limiting slot is provided with tripping, be provided with the tripping with the matched drive division of limiting slot, the drive division is with jump Pulling work can slide in limiting slot, and forms tripping and be linked with what is detained again.
- 4. the double breaking points small type circuit breaker operating mechanism according to claim 1 or 3, it is characterised in that：Described buckles again The Z-shaped holding section of basic configuration is provided with corresponding lock, is provided with the lock and the matched fastening in holding section Portion, during combined floodgate, the holding section is interlocked with buckling parts, and forms lock and the spacing cooperation detained again.
- 5. the double breaking points small type circuit breaker operating mechanism according to claim 1 or 3, it is characterised in that：The tripping Upper end is provided with combined floodgate index plane, and the red mark that closes a floodgate is provided with combined floodgate index plane.
- 6. double breaking points small type circuit breaker operating mechanism according to claim 1, it is characterised in that：The handle and tripping Between be connected with two connecting rods, and form being linked for handle and tripping, one end of described two connecting rods is connected to handle Connecting hole in, and the other end of two connecting rods is connected in the through hole of tripping.
- 7. double breaking points small type circuit breaker operating mechanism according to claim 1, it is characterised in that：On the lower retainer Access Division is provided with corresponding second torsional spring, on the second axis, one end of the second torsional spring is contradicted in Access Division the second torsion spring set, The other end of second torsional spring contradicts the clamping block on side plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711371411.1A CN107946148A (en) | 2017-12-19 | 2017-12-19 | Double breaking points small type circuit breaker operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711371411.1A CN107946148A (en) | 2017-12-19 | 2017-12-19 | Double breaking points small type circuit breaker operating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107946148A true CN107946148A (en) | 2018-04-20 |
Family
ID=61940779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711371411.1A Pending CN107946148A (en) | 2017-12-19 | 2017-12-19 | Double breaking points small type circuit breaker operating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107946148A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112071710A (en) * | 2019-06-11 | 2020-12-11 | 北京明日电器设备有限责任公司 | Miniature circuit breaker with body split-combined display |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202058676U (en) * | 2011-05-23 | 2011-11-30 | 温州罗格朗电器有限公司 | Double-breaking-point breaker |
| CN204257551U (en) * | 2014-12-19 | 2015-04-08 | 上海永继电气股份有限公司 | The operating mechanism of miniature circuit breaker |
| CN204361033U (en) * | 2014-12-19 | 2015-05-27 | 上海永继电气股份有限公司 | Miniature circuit breaker |
| EP3051570A1 (en) * | 2013-09-24 | 2016-08-03 | Seari Electric Technology Co., Ltd. | Rotating dual break point contact |
| CN207542173U (en) * | 2017-12-19 | 2018-06-26 | 上海永继电气股份有限公司 | Double breaking points small type circuit breaker operating mechanism |
-
2017
- 2017-12-19 CN CN201711371411.1A patent/CN107946148A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202058676U (en) * | 2011-05-23 | 2011-11-30 | 温州罗格朗电器有限公司 | Double-breaking-point breaker |
| EP3051570A1 (en) * | 2013-09-24 | 2016-08-03 | Seari Electric Technology Co., Ltd. | Rotating dual break point contact |
| CN204257551U (en) * | 2014-12-19 | 2015-04-08 | 上海永继电气股份有限公司 | The operating mechanism of miniature circuit breaker |
| CN204361033U (en) * | 2014-12-19 | 2015-05-27 | 上海永继电气股份有限公司 | Miniature circuit breaker |
| CN207542173U (en) * | 2017-12-19 | 2018-06-26 | 上海永继电气股份有限公司 | Double breaking points small type circuit breaker operating mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112071710A (en) * | 2019-06-11 | 2020-12-11 | 北京明日电器设备有限责任公司 | Miniature circuit breaker with body split-combined display |
| CN112071710B (en) * | 2019-06-11 | 2022-11-08 | 北京明日电器设备有限责任公司 | Miniature circuit breaker with body split-combined display |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20180420 |