CN2777745Y - Operating mechanism for small circuit breaker - Google Patents
Operating mechanism for small circuit breaker Download PDFInfo
- Publication number
- CN2777745Y CN2777745Y CN 200420081086 CN200420081086U CN2777745Y CN 2777745 Y CN2777745 Y CN 2777745Y CN 200420081086 CN200420081086 CN 200420081086 CN 200420081086 U CN200420081086 U CN 200420081086U CN 2777745 Y CN2777745 Y CN 2777745Y
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- CN
- China
- Prior art keywords
- circuit breaker
- people
- multipole
- snap close
- moving contact
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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.)
- Expired - Lifetime
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Abstract
The utility model discloses an operating mechanism for a small circuit breaker, which comprises a handle, a drive link, a lock catch, a trip rod, a moving contact, a static contact, an electromagnetic trip device, an overload protection device and also V-shaped linking rods, wherein in multipole assembly, a multipole universal driving shaft is used for connecting the V-shaped linking rods of circuit breakers of each pole; when overload occurs, a bimetal sheet drives the trip rod to trip, meanwhile, the moving contact drives a V-shaped linking rod to rotate, and driven by the multipole universal driving shaft, a V-shaped linking rod of a circuit breaker of the other pole can also drive the operating mechanism to separate a brake. Since the moving contact has certain brake separation speed and inertia during brake separation, the thrust transferred to the V-shaped linking rod of the circuit breaker of the other pole can effectively ensure the brake separation of the circuit breaker. The utility model avoids the defect that the bimetal sheet is insufficient to drive a multipole circuit breaker to separate the brake caused by the superposition of tripping force and increase the reliability of brake separation during multipole assembly.
Description
Technical field
The utility model relates to a kind of operating mechanism of miniature circuit breaker, belongs to the low-voltage electrical apparatus field.
Background technology
The overload protection arrangement of present miniature circuit breaker adopts bimetal leaf mostly, finishes separating brake by the release lever in the bimetal leaf drive operating mechanism during overload and realizes overload protection.But when multipole assembly unit links, the stack of multipole circuit breaker tripping force, if the one pole overload, the bending force of its bimetal leaf adstante febre may be not enough to drive the multipole circuit breaker separating brake, fail safe is relatively poor.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of operating mechanism of miniature circuit breaker safer, reliable in action.
The utility model adopts following technical scheme for this reason: a kind of operating mechanism of miniature circuit breaker comprises handle, kinematic link, snap close, release lever, moving contact, fixed contact, electromagnetic trip device and overload protection arrangement; Also comprise " people " font trace, " people " font trace and release lever are hinged on the snap close by the mode of bearing pin with stack, and " people " font trace is clipped in the centre of release lever and snap close; The left end of " people " font trace reaches the position relative with the push rod of tripgear; The left end of " people " font trace is provided with an axis hole and a boss, and the right-hand member of " people " font trace is near the right side at moving contact.
As to improvement of the technical scheme, the left end of " people " font trace can be designed to step through-hole, and the diameter of upper semisection is big, and the diameter of lower semisection is little, is convenient to when multipole assembly unit the installation of multipole universal driving shaft and location.
The utility model is when multipole assembly unit, and " people " font trace is by multipole universal driving shaft interlock.During separating brake, moving contact has certain opening velocity and inertia, and being delivered on another utmost point circuit breaker " people " font trace by multipole universal driving shaft has very strong swing, and this impact is enough to overcome the tripping force of circuit breaker itself and makes breaker open operation.In addition, " people " font trace and release lever are hinged, have avoided the phenomenon of multipole circuit breaker tripping force stack.The utility model is simple and compact for structure, be convenient to assembling, reset in time, improved the reliability of separating brake simultaneously.
Description of drawings
Further illustrate particular content of the present utility model below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of present embodiment under off-state;
Fig. 2 is the structural representation of present embodiment under closing course;
Fig. 3 is a present embodiment release lever schematic diagram;
Fig. 4 is present embodiment " people " font trace schematic diagram.
Embodiment
Present embodiment comprises housing 1, handle 2, kinematic link 3, snap close 6, release lever 7, moving contact 14, fixed contact 16, electromagnetic trip device and overload protection arrangement; Handle 2 is hinged on the housing by Handle axis, and handle spring is installed on the Handle axis in a spiral manner, and the one end is fixed on the housing, and the other end is fixed on the handle and makes handle deflection open position; Snap close 6 is hinged in the housing 1 by snap close axle 5, latch spring 11 is installed on the snap close axle 5 in a spiral manner, and the one end is fixed on the housing 1, and the other end is fixed on the snap close 6 and makes the position of snap close 6 deflection handles 2, snap close 6 upper ends are provided with a circular groove, and the top of groove has a breach; One end and the handle 2 of kinematic link 3 are hinged, and the other end is one " L " shape elbow, and " L " shape elbow puts in the circular groove of snap close 6; The upper end of release lever 7 is near the circular groove of snap close 6, and is provided with a breach in the position corresponding with the breach of circular groove, and the direction of breach is relative with the breach direction of the circular groove of snap close 6; Back-moving spring 10 is installed on the snap close axle 5 in a spiral manner, and the one end is fixed on the snap close 6, and the other end is fixed on the release lever 7; Bimetal leaf connecting rod 12 1 ends and release lever 7 are hinged, and other end activity is on the right side of bimetal leaf 13; Fixed contact 16 links to each other with the coil of electromagnetic trip device and together is fixed in the housing 1 with electromagnetic trip device; Moving contact 14 is located on the position relative with fixed contact 16, and moving contact 14 is hinged on the snap close 6 by moving contact axle 9; Moving contact spring 15 is installed on the moving contact axle 9 in a spiral manner, and an end is fixed on the snap close 6, and the other end is fixed on and makes its contact near fixed contact 16 1 sides on the moving contact 14; Also comprise " people " font trace 4, " people " font trace 4 and release lever 7 are hinged on the snap close 6 by the mode of bearing pin 8 with stack, and " people " font trace 4 is clipped in the centre of release lever 7 and snap close 6; The left end 21 of " people " font trace 4 is an arcwall face, reaches the position relative with the push rod 17 of tripgear; The left end of " people " font trace 4 is provided with an axis hole 22 and a boss 23, and axis hole 22 is a step through-hole, and the diameter of upper semisection is big, and the diameter of lower semisection is little.The right-hand member 24 of " people " font trace 4 is near the right side at moving contact 14.
Below be the operation situation of this operating mechanism:
When multipole assembly unit, a multipole universal driving shaft need be inserted in the axis hole 22 on each circuit breaker " people " font trace 4.Under off-state, handle 2 is pressed on the position of opening circuit in the left side by handle spring, at this moment, the elbow end that connects the kinematic link 3 of handle 2 is trapped in the groove of snap close 6 and just is arranged in the breach of groove and the breach of release lever 7 upper ends, release lever 7 compresses the elbow of kinematic link 3 under the active force of back-moving spring 10, the elbow of kinematic link 3 is locked in the breach of the breach of groove and release lever 7 upper ends, temporary transient realization is hinged with snap close 6, this moment, moving contact 14 left fixed contact 16, and the push rod 17 of tripgear is pushed leave to the position of release lever 7 by the iron core spring; During combined floodgate, handle 2 is pulled toward closed positions, because in the breach of the breach that the elbow of kinematic link 3 is locked in groove and release lever 7 upper ends, handle 2 rotates snap close 6 by kinematic link 3, and the direction that drives moving contact 14 past fixed contacts 16 moves.Handle 2 is turned to closed extreme position, and this moment, handle 2 was crossed with the hinged dead point of kinematic link 3, and handle spring act on the handle 2 the power deficiency so that handle 2 cross the dead point and return, so handle 2 is fixed at this extreme position.Under this state, moving contact 14 is pressed on the fixed contact 16, and the left end 21 of " people " font trace 4 is near the push rod 17 of tripgear.When short circuit current, push rod 17 on the tripgear will overcome the active force of push rod spring and shift to the left end of " people " font trace 4, " people " font trace 4 rotates counterclockwise, and by boss 23 promotion release levers 7 rotations counterclockwise, the groove of snap close 6 can be left in the upper end of release lever 7 like this, the elbow that makes kinematic link 3 is thrown off from the breach of the breach of snap close 6 grooves and release lever 7 upper ends, snap close 6 is disengaged with the hinged relationship of kinematic link 3, snap close 6 turns back to the position when disconnecting under the active force of latch spring 11, moving contact 14 also separates with fixed contact 16 under the drive of snap close 6, and handle 2 resets under the active force of handle spring; When current overload, bimetal leaf 13 heatings are crooked, pulling bimetallic connecting rod 12, bimetallic connecting rod 12 drives release lever 7 and rotates counterclockwise, the groove of snap close 6 can be left in the upper end of release lever 7 like this, the elbow that makes kinematic link 3 is thrown off from the breach of the breach of snap close 6 grooves and release lever 7 upper ends, snap close 6 is disengaged with the hinged relationship of kinematic link 3, snap close 6 turns back to the position when disconnecting under the active force of latch spring 11, moving contact 14 also separates with fixed contact 16 under the drive of snap close 6, at this moment, handle 2 resets under the active force of handle spring, resetting of moving contact 14, right-hand member 24 by " people " font trace 4 promotes " people " font trace 4 rotation counterclockwise, " people " font trace 4 of another utmost point circuit breaker also can counterclockwise rotate under the drive of multipole universal driving shaft, thereby drives the operating mechanism separating brake.
Claims (3)
1, a kind of operating mechanism of miniature circuit breaker comprises handle (2), kinematic link (3), snap close (6), release lever (7), moving contact (14), fixed contact (16), electromagnetic trip device and overload protection arrangement; It is characterized in that: also comprise " people " font trace (4), " people " font trace (4) and described release lever (7) are hinged on the described snap close (6) by the mode of bearing pin (8) with stack, and " people " font trace (4) is clipped in the centre of release lever (7) and snap close (6); The left end (21) of " people " font trace (4) reaches the relative position of push rod (17) with electromagnetic trip device; The left end of " people " font trace (4) is provided with an axis hole (22) and a boss (23), and the right-hand member (24) of " people " font trace (4) is near the right side in moving contact (14).
2, the operating mechanism of miniature circuit breaker according to claim 1 is characterized in that: the left end (21) of described " people " font trace (4) is an arcwall face.
3, the operating mechanism of miniature circuit breaker according to claim 1 is characterized in that: described axis hole (22) is a step through-hole, and the diameter of upper semisection is big, and the diameter of lower semisection is little.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420081086 CN2777745Y (en) | 2004-07-26 | 2004-07-26 | Operating mechanism for small circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420081086 CN2777745Y (en) | 2004-07-26 | 2004-07-26 | Operating mechanism for small circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2777745Y true CN2777745Y (en) | 2006-05-03 |
Family
ID=36745122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420081086 Expired - Lifetime CN2777745Y (en) | 2004-07-26 | 2004-07-26 | Operating mechanism for small circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2777745Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819908A (en) * | 2010-04-16 | 2010-09-01 | 江苏辉能电气有限公司 | Conducting loop structure of low-voltage circuit breaker |
| CN101587802B (en) * | 2009-06-18 | 2012-02-22 | 德力西电气（宁波）有限公司 | Rapid-releasing breaker |
| CN103065899A (en) * | 2011-10-21 | 2013-04-24 | 施耐德电器工业公司 | Electric leakage protector and circuit breaker |
| WO2013185421A1 (en) * | 2012-06-15 | 2013-12-19 | 浙江鼎威科技有限公司 | Dual-mechanism 1p+n earth leakage circuit breaker |
| CN103594298A (en) * | 2013-11-22 | 2014-02-19 | 王克诚 | Electric control molded case circuit breaker and logic interlocking type molded case circuit breaker |
| CN104134588A (en) * | 2014-07-17 | 2014-11-05 | 正泰集团股份有限公司 | Operation device of miniature multi-pole circuit breaker |
| CN105914110A (en) * | 2016-06-20 | 2016-08-31 | 浙江天正电气股份有限公司 | Small-sized circuit breaker |
| CN106449286A (en) * | 2015-08-11 | 2017-02-22 | 浙江正泰电器股份有限公司 | Circuit breaker installing structure and assembling method |
| CN108711541A (en) * | 2018-07-13 | 2018-10-26 | 浙江正泰电器股份有限公司 | Breaker |
| CN108878226A (en) * | 2018-07-13 | 2018-11-23 | 浙江正泰电器股份有限公司 | Breaker |
| CN110911251A (en) * | 2019-11-28 | 2020-03-24 | 谢昕 | Circuit breaker |
| CN112002622A (en) * | 2020-08-27 | 2020-11-27 | 厦门恒锋力电子有限公司 | Miniature circuit breaker |
-
2004
- 2004-07-26 CN CN 200420081086 patent/CN2777745Y/en not_active Expired - Lifetime
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101587802B (en) * | 2009-06-18 | 2012-02-22 | 德力西电气（宁波）有限公司 | Rapid-releasing breaker |
| CN101819908B (en) * | 2010-04-16 | 2012-08-29 | 江苏辉能电气有限公司 | Conducting loop structure of low-voltage circuit breaker |
| CN101819908A (en) * | 2010-04-16 | 2010-09-01 | 江苏辉能电气有限公司 | Conducting loop structure of low-voltage circuit breaker |
| CN103065899B (en) * | 2011-10-21 | 2015-12-30 | 施耐德电器工业公司 | Earth leakage protective device and circuit breaker |
| CN103065899A (en) * | 2011-10-21 | 2013-04-24 | 施耐德电器工业公司 | Electric leakage protector and circuit breaker |
| WO2013185421A1 (en) * | 2012-06-15 | 2013-12-19 | 浙江鼎威科技有限公司 | Dual-mechanism 1p+n earth leakage circuit breaker |
| CN103594298B (en) * | 2013-11-22 | 2016-04-06 | 王克诚 | Automatically controlled breaker of plastic casing and logic mutual locking-type breaker of plastic casing |
| CN103594298A (en) * | 2013-11-22 | 2014-02-19 | 王克诚 | Electric control molded case circuit breaker and logic interlocking type molded case circuit breaker |
| CN104134588A (en) * | 2014-07-17 | 2014-11-05 | 正泰集团股份有限公司 | Operation device of miniature multi-pole circuit breaker |
| WO2016008298A1 (en) * | 2014-07-17 | 2016-01-21 | 正泰集团股份有限公司 | Operation device of multi-pole miniature circuit breaker |
| CN104134588B (en) * | 2014-07-17 | 2016-03-02 | 正泰集团股份有限公司 | A kind of operating means of multipole small-size circuit breaker |
| CN106449286B (en) * | 2015-08-11 | 2019-05-28 | 浙江正泰电器股份有限公司 | The mounting structure and assembly method of breaker |
| CN106449286A (en) * | 2015-08-11 | 2017-02-22 | 浙江正泰电器股份有限公司 | Circuit breaker installing structure and assembling method |
| CN105914110B (en) * | 2016-06-20 | 2017-10-20 | 浙江天正电气股份有限公司 | A kind of miniature circuit breaker |
| CN105914110A (en) * | 2016-06-20 | 2016-08-31 | 浙江天正电气股份有限公司 | Small-sized circuit breaker |
| CN108711541A (en) * | 2018-07-13 | 2018-10-26 | 浙江正泰电器股份有限公司 | Breaker |
| CN108878226A (en) * | 2018-07-13 | 2018-11-23 | 浙江正泰电器股份有限公司 | Breaker |
| CN108711541B (en) * | 2018-07-13 | 2023-09-05 | 浙江正泰电器股份有限公司 | Circuit breaker |
| CN108878226B (en) * | 2018-07-13 | 2024-05-17 | 浙江正泰电器股份有限公司 | Circuit breaker |
| CN110911251A (en) * | 2019-11-28 | 2020-03-24 | 谢昕 | Circuit breaker |
| CN112002622A (en) * | 2020-08-27 | 2020-11-27 | 厦门恒锋力电子有限公司 | Miniature circuit breaker |
| CN112002622B (en) * | 2020-08-27 | 2023-01-03 | 厦门恒锋力电子有限公司 | Miniature circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DELIXI ELECTRIC LTD. Free format text: FORMER OWNER: DELIXI ELECTRIC APPLIANCES CO., LTD., ZHEJIANG PROV. Effective date: 20080118 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Qi Weihua Inventor before: Qi Weihua |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: QIWEIHUA TO: QI WEIHUA |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20080118 Address after: Liushi Delixi high tech Industrial Park, Wenzhou City, Zhejiang province zip code: 325604 Patentee after: Delixi Electric Co., Ltd. Address before: Yueqing City, Zhejiang province Liushi Delixi Industrial Park, zip code: 325604 Patentee before: Delixi Electrical Appliance Co., Ltd., Zhejiang |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140726 Granted publication date: 20060503 |