CN102426998A - Operating mechanism of minitype breaker - Google Patents
Operating mechanism of minitype breaker Download PDFInfo
- Publication number
- CN102426998A CN102426998A CN2011102685442A CN201110268544A CN102426998A CN 102426998 A CN102426998 A CN 102426998A CN 2011102685442 A CN2011102685442 A CN 2011102685442A CN 201110268544 A CN201110268544 A CN 201110268544A CN 102426998 A CN102426998 A CN 102426998A
- Authority
- CN
- China
- Prior art keywords
- lever
- snap close
- tripping
- housing
- contact
- 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
Images
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
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
- H01H71/522—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism
- H01H71/525—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism comprising a toggle between cradle and contact arm and mechanism spring acting between handle and toggle knee
Landscapes
- Breakers (AREA)
Abstract
The invention relates to an operating mechanism of a minitype breaker. The operating mechanism includes a handle that can be rotatably installed in a housing. A U-shaped connecting rod is connected to the handle; the other end of the U-shaped connecting rod is movably arranged penetratedly into a sliding groove of a support lever. The support lever can be sleevedly installed on a first fixed shaft by rotating around the first fixed shaft and the first fixed shaft is fixed on the housing. A second fixed shaft is fixed on the support lever; a tension spring is connected on the second fixed shaft; and the tension spring is connected with a third fixed shaft that is fixed on the housing. A pin jump lever that is capable of rotating around the second fixed shaft is sleevedly installed on the second fixed shaft; one end of the pin jump lever is above the sliding groove; and the other end of the pin jump lever is in contact connection with one end of a latching lever. And the latching lever is rotatably sleevedly installed on the first fixed shaft and the other end of the latching lever is in contact connection with one end surface of the support lever. According to the invention, beneficial effects of the operating mechanism are as follows: the tripping arm force of the latching lever is increased; a tripping force can be effectively reduced; and the motion is stable.
Description
Technical field
The invention belongs to the low-voltage electrical apparatus field, relate in particular to a kind of operating mechanism of miniature circuit breaker.
Background technology
Miniature circuit breaker is the terminal equipment of distribution line, and it is little to have a volume, and characteristics such as modularization are mainly used in switch and protection circuit.The operating mechanism kind of miniature circuit breaker is various at present, and the power transmission between most employing connecting rods realizes contact closure and the process of separating, and realizes the purpose of threading off through the conversion between operating mechanism four connecting rods and five connecting rods; Can realize that tripping force is little, breaking speed is fast, operates characteristics such as comfortable.
But because the lever arm of force of existing operating mechanism is smaller, cause final tripping force bigger, can cause that like this bimetal leaf action of delayed time system is unstable.
Summary of the invention
The objective of the invention is to overcome the instable shortcoming of the operating mechanism existence that has miniature circuit breaker now, the operating mechanism of the miniature circuit breaker that a kind of tripping force is little, action is stable is provided.
For the technical scheme that reaches goal of the invention the present invention employing is:
A kind of operating mechanism of miniature circuit breaker, it is installed in the housing of miniature circuit breaker, it is characterized in that: comprise the rotating handle that is installed in the housing, be provided with in the said handle and drive the first answer part that it is returned to initial position;
Be connected with a U-shaped connecting rod on the said handle, the other end of said U-shaped connecting rod is located in the sliding tray of support lever movably, and said support lever can be sleeved on first fixed axis around what first fixed axis rotated, and said first fixed axis is fixed on the housing;
Be fixed with second fixed axis on the said support lever, be connected with the extension spring of its rotation of pulling on said second fixed axis, said extension spring is connected with the 3rd fixed axis on being fixed on housing; Be set with the tripping lever that can rotate around it on said second fixed axis, an end of said tripping lever is positioned at the top of sliding tray, and its other end is connected with an end in contact of snap close lever, is connected with the second answer part that drives its answer on the said tripping lever;
Said snap close lever is rotating to be sleeved on first fixed axis, and the other end of said snap close lever is connected with the end face contact of support lever, and said snap close lever and support lever contact jaw are provided with and drive the 3rd answer part that the snap close lever is replied.
Further; Be installed with indication piece on the said support lever and rotating energy storage part is installed; Be connected with a spring on the said energy storage part; The other end of said spring is connected with housing, and the end of said energy storage part is located on the movement locus of indication piece, and said energy storage part and indication piece are the limit face ways of contact.
Further, the said first answer part is the handle torsion spring, and an end of said handle torsion spring is connected with the handle contact, and its other end is connected with the housing contact.
Further, the said second answer part is the tripping torsion spring, and an end of said tripping torsion spring is connected with the contact of tripping lever, and its other end is connected with the support lever contact.
Further, said the 3rd answer part is the snap close torsion spring, and an end of said snap close torsion spring is connected with the contact of snap close lever, and its other end is connected with the support lever contact.
The present invention is in mechanism's closing course; Handle rotates; Promote the U-shaped connecting rod; Slide in the sliding tray of support lever in the other end face of cylinder of U-shaped connecting rod, the other end face of cylinder of said U-shaped connecting rod contact with the end face that the tripping lever is arranged on sliding tray top again, and promotion tripping lever rotates around second fixed axis; Simultaneously; One end in contact of the other end of tripping lever and snap close lever; The snap close lever is rotated counterclockwise, because the other end of snap close lever contacts with an end face of support lever, make relative fixed between support lever, tripping lever and the snap close lever again; Become as a whole edge first fixed axis to rotate, accomplish the closed action of mechanism.
When mechanism need move, trigger the snap close lever by instantaneous, time-delay or link gear and rotate counterclockwise.At this moment tripping lever and snap close lever break away from each other; The tripping lever receives the lower end position place that can turn to the sliding tray of support lever behind the active force of U-shaped connecting rod; Simultaneously support lever receive the effect of extension spring power can be to rotating counterclockwise; Stopped by the housing restriction, make circuit breaker be in gate-dividing state; Afterwards, the handle active force that receives the handle torsion spring forwards the initial position that receives the housing restriction to; The end face that U-shaped connecting rod and tripping lever are arranged on the sliding tray top breaks away from, and the tripping lever leans on the active force of tripping torsion spring to rotate counterclockwise, and the other end of tripping lever and U-shaped link are parked in initial position after touch.The active force that the snap close lever receives the snap close torsion spring clockwise rotates, and limited by an end face of support lever, rests on initial position.
The present invention also has the quick-make function, is realized by indication piece, spring and energy storage part.Indication piece is fixed on the support lever, and the energy storage part rotates in fixed axis around the hole heart.Spring action provides counterclockwise restoring force for the energy storage part on energy storage part and housing.When mechanism is closed, when support lever drives indication piece and turns to certain position, one side the contacting of the one side of indication piece and energy storage part, being rotated further of barrier support lever; Contact-making surface on the indication piece is to the rotatory force of the contact edge generation of energy storage part; The active force that makes the energy storage part overcome spring clockwise rotates; When contact edge turns to when separating with contact-making surface, support lever is rotated further, because moment is broken away from resistance; Velocity of rotation increases rapidly, realizes the purpose of mechanism's quick-make.
Beneficial effect of the present invention:
1, the snap close lever is coaxial with the center of rotation of support lever, makes the dropout arm of force of snap close lever increase, and can effectively reduce tripping force.
2, controlled the movement locus of U-shaped connecting rod one end by the sliding tray on the support lever, the degree of freedom that makes linkage is 1, and mechanism is according to the direction motion of confirming; The U-shaped connecting rod contact with the limit of sliding tray and the face of tripping lever simultaneously, make the tripping lever stressed direction constant all the time with respect to tripping lever self, help making the active force maintenance between snap close lever and the tripping lever to be stablized.
3, the turned position of snap close lever receives the restriction of support lever, makes snap close lever and tripping lever have only a place to come in contact, the stressed control more easily that makes the snap close lever, the phenomenon that the tripping lever flicks the snap close lever when having avoided mechanism's quick-make simultaneously.
Description of drawings
Fig. 1 is a structural perspective of the present invention.
Fig. 2 is a structural plan of the present invention sketch map.
The sketch map that contacts of tripping lever and snap close lever when Fig. 3 is a hasp of the present invention.
The sketch map that contacts of support lever and snap close lever when Fig. 4 is a hasp of the present invention.
Fig. 5 is a structural representation after the present invention closes a floodgate.
Fig. 6 is a structural representation after the present invention trips.
Fig. 7 is a stored energy mechanism sketch map on the support lever of the present invention.
Embodiment
Come the present invention is further specified below in conjunction with specific embodiment, but do not limit the invention to these embodiments.One skilled in the art would recognize that the present invention contained in claims scope all alternatives, improvement project and the equivalents that possibly comprise.
With reference to Fig. 1-6; A kind of operating mechanism of miniature circuit breaker, it is installed in the housing of miniature circuit breaker, comprises the rotating handle 1 that is installed in the housing; Said handle 1 is connected with an end in contact of one handle torsion spring 12, and the other end of said handle torsion spring 12 is connected with the housing contact;
Be connected with a U-shaped connecting rod 11 on the said handle 1; The other end 111 of said U-shaped connecting rod 11 is located in the sliding tray 31 of support lever 3 movably; Said support lever 3 can be sleeved on first fixed axis 8 around what first fixed axis 8 rotated, and said first fixed axis 8 is fixed on the housing;
Be fixed with second fixed axis 4 on the said support lever 3, be connected with extension spring 9 on said second fixed axis 4, said extension spring 9 is connected with the 3rd fixed axis 10 on being fixed on housing; Be set with the tripping lever 5 that can rotate around it on said second fixed axis 4; One end 51 of said tripping lever 5 is positioned at the top of sliding tray 31; Its other end 52 is connected with an end 71 contacts of snap close lever 7; Said tripping lever 5 is connected with an end in contact of a tripping torsion spring 2, and the other end of said tripping torsion spring 2 is connected with support lever 3 contacts;
Said snap close lever 7 rotating being sleeved on first fixed axis 8; The other end 72 of said snap close lever 7 is connected with an end face 32 contacts of support lever 3; Said snap close lever 7 is provided with snap close torsion spring 6 with support lever 3 contact jaws; One end of said snap close torsion spring 6 is connected with 7 contacts of snap close lever, and its other end is connected with support lever 3 contacts.
Be installed with indication piece 13 on the said support lever 3 and rotating energy storage part 15 is installed; Be connected with a spring 14 on the said energy storage part 15; The other end of said spring 14 is connected with housing; The end of said energy storage part 15 is located on the movement locus of indication piece 13, and said energy storage part 15 is limit face ways of contact with indication piece 13.
The present invention is in mechanism's closing course; Handle 1 rotates; Promote U-shaped connecting rod 11; Slide in the sliding tray 31 of support lever 3 in the other end 111 faces of cylinder of U-shaped connecting rod 11, the other end 111 faces of cylinder of said U-shaped connecting rod 11 contact with the end face 51 that tripping lever 5 is arranged on sliding tray 31 tops again, promotes tripping lever 5 around 4 rotations of second fixed axis; Simultaneously; The other end 52 of tripping lever 5 contacts with an end 71 of snap close lever 7; Snap close lever 7 is rotated counterclockwise, because the other end 72 of snap close lever 7 contacts with an end face 32 of support lever 3, make relative fixed between support lever 3, tripping lever 5 and the snap close lever 7 again; Become as a whole edge first fixed axis 8 to rotate, accomplish the closed action of mechanism.
When mechanism need move, trigger snap close thick stick 7 by instantaneous, time-delay or link gear and rotate counterclockwise.At this moment tripping lever 5 breaks away from snap close lever 7 each other; Tripping lever 5 receives the lower end position place that can turn to the sliding tray 31 of support lever 3 behind the active force of U-shaped connecting rod 11; Simultaneously support lever 3 receive the effect of extension spring 9 power can be to rotating counterclockwise; Stopped by the housing restriction, make circuit breaker be in gate-dividing state; Afterwards, handle 1 active force that receives handle torsion spring 12 forwards the initial position that receives the housing restriction to; U-shaped connecting rod 11 breaks away from the end face 53 that tripping lever 5 is arranged on sliding tray 31 tops, and tripping lever 5 leans on the active force of tripping torsion spring 2 to rotate counterclockwise, the other end 54 of tripping lever 5 be parked in initial position after U-shaped connecting rod 11 contacts.The active force that snap close lever 7 receives snap close torsion spring 6 clockwise rotates, and receives an end face 32 restrictions of support lever 3, rests on initial position.
Referring to Fig. 7, the present invention also has the quick-make function, is realized by indication piece 13, spring 14 and energy storage part 15.Indication piece 13 is fixed on the support lever 3, and energy storage part 15 rotates in fixed axis around the hole heart.Spring 14 acts on energy storage part 15 and the housing, supplies counterclockwise restoring force for energy storage part 15.When mechanism is closed, when support lever 3 drives indication pieces 13 and turns to certain position, one side the contacting of the one side of indication piece 13 and energy storage part 15, being rotated further of barrier support lever 3; The rotatory force that the contact edge 151 of the 131 pairs of energy storage parts 15 of contact-making surface on the indication piece 13 produces; The active force that makes energy storage part 15 overcome spring 14 clockwise rotates; When contact edge 151 turns to when separating with contact-making surface 131, support lever 3 is rotated further, because moment is broken away from resistance; Velocity of rotation increases rapidly, realizes the purpose of mechanism's quick-make.
Claims (5)
1. the operating mechanism of a miniature circuit breaker, it is installed in the housing of miniature circuit breaker, it is characterized in that: comprise the rotating handle that is installed in the housing, be provided with in the said handle and drive it and be returned to first of initial position and reply part;
Be connected with a U-shaped connecting rod on the said handle, the other end of said U-shaped connecting rod is located in the sliding tray of support lever movably, and said support lever can be sleeved on first fixed axis around what first fixed axis rotated, and said first fixed axis is fixed on the housing;
Be fixed with second fixed axis on the said support lever, be connected with the extension spring of its rotation of pulling on said second fixed axis, said extension spring is connected with the 3rd fixed axis on being fixed on housing; Be set with the tripping lever that can rotate around it on said second fixed axis, an end of said tripping lever is positioned at the top of sliding tray, and its other end is connected with an end in contact of snap close lever, is connected with the second answer part that drives its answer on the said tripping lever;
Said snap close lever is rotating to be sleeved on first fixed axis, and the other end of said snap close lever is connected with the end face contact of support lever, and said snap close lever and support lever contact jaw are provided with and drive the 3rd answer part that the snap close lever is replied.
2. the operating mechanism of a kind of miniature circuit breaker according to claim 1; It is characterized in that: be installed with indication piece on the said support lever and rotating energy storage part is installed; Be connected with a spring on the said energy storage part; The other end of said spring is connected with housing, and the end of said energy storage part is located on the movement locus of indication piece, and said energy storage part and indication piece are the limit face ways of contact.
3. the operating mechanism of a kind of miniature circuit breaker according to claim 1 and 2 is characterized in that: said first to reply part be the handle torsion spring, and an end of said handle torsion spring is connected with the handle contact, and its other end contacts with housing and is connected.
4. the operating mechanism of a kind of miniature circuit breaker according to claim 3 is characterized in that: said second to reply part be the tripping torsion spring, and an end of said tripping torsion spring is connected with the contact of tripping lever, and its other end contacts with support lever and is connected.
5. the operating mechanism of a kind of miniature circuit breaker according to claim 4 is characterized in that: the said the 3rd to reply part be the snap close torsion spring, and an end of said snap close torsion spring is connected with the contact of snap close lever, and its other end contacts with support lever and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102685442A CN102426998B (en) | 2011-09-13 | 2011-09-13 | Operating mechanism of minitype breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102685442A CN102426998B (en) | 2011-09-13 | 2011-09-13 | Operating mechanism of minitype breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102426998A true CN102426998A (en) | 2012-04-25 |
| CN102426998B CN102426998B (en) | 2013-11-27 |
Family
ID=45960965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102685442A Active CN102426998B (en) | 2011-09-13 | 2011-09-13 | Operating mechanism of minitype breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102426998B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014044036A1 (en) * | 2012-09-20 | 2014-03-27 | 上海诺雅克电气有限公司 | Minitype breaker with high stability |
| 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 |
| CN108807096A (en) * | 2018-07-11 | 2018-11-13 | 浙江诺科电气科技股份有限公司 | The operating mechanism of miniature circuit breaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5151671A (en) * | 1990-02-23 | 1992-09-29 | Matsushita Electric Works, Ltd. | Circuit breaker |
| CN100355005C (en) * | 2002-09-26 | 2007-12-12 | 富士电机株式会社 | Circuit breaker |
| CN101159208A (en) * | 2007-11-27 | 2008-04-09 | Tcl低压电器(无锡)有限公司 | Small circuit breaker mechanism |
| CN202259079U (en) * | 2011-09-13 | 2012-05-30 | 上海诺雅克电气有限公司 | Operating mechanism of small-sized breaker |
-
2011
- 2011-09-13 CN CN2011102685442A patent/CN102426998B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5151671A (en) * | 1990-02-23 | 1992-09-29 | Matsushita Electric Works, Ltd. | Circuit breaker |
| CN100355005C (en) * | 2002-09-26 | 2007-12-12 | 富士电机株式会社 | Circuit breaker |
| CN101159208A (en) * | 2007-11-27 | 2008-04-09 | Tcl低压电器(无锡)有限公司 | Small circuit breaker mechanism |
| CN202259079U (en) * | 2011-09-13 | 2012-05-30 | 上海诺雅克电气有限公司 | Operating mechanism of small-sized breaker |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014044036A1 (en) * | 2012-09-20 | 2014-03-27 | 上海诺雅克电气有限公司 | Minitype breaker with high stability |
| US9589743B2 (en) | 2012-09-20 | 2017-03-07 | Noark Electrics (Shanghai) Co., Ltd. | Minitype breaker with high stability |
| 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 |
| 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 |
| CN108807096A (en) * | 2018-07-11 | 2018-11-13 | 浙江诺科电气科技股份有限公司 | The operating mechanism of miniature circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102426998B (en) | 2013-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100555506C (en) | The operating mechanism of miniature circuit breaker | |
| US20140048513A1 (en) | Circuit breaker | |
| CN101106046B (en) | An operation machine for small residual current action breaker | |
| CN101345168B (en) | Time delay output apparatus for circuit breaker | |
| CN202259079U (en) | Operating mechanism of small-sized breaker | |
| CN102426998B (en) | Operating mechanism of minitype breaker | |
| CN111341612A (en) | Circuit breaker | |
| CN203631449U (en) | Operating mechanism of miniature circuit breaker | |
| CN110767508B (en) | N-pole circuit breaker without arc extinguishing device | |
| CN201898099U (en) | Operating mechanism of molded case circuit breaker | |
| CN201298519Y (en) | Energy storage high-breaking miniature breaker | |
| CN203644706U (en) | Moving contact repulsion open tripping device for circuit breaker | |
| CN203445073U (en) | Operation mechanism of double-breakpoint molded case circuit breaker | |
| CN103646828B (en) | The operating mechanism of miniature circuit breaker and the course of work thereof | |
| CN102646556B (en) | A kind of device for under-voltage releasing equipment | |
| CN102129941B (en) | Circuit breaker | |
| CN201985050U (en) | Bounce-proof device of circuit breaker | |
| CN201069745Y (en) | An operating mechanism of small residual current action breaker | |
| CN207587673U (en) | Moving contact component and device for switching may be reversed | |
| CN203150498U (en) | High current repulsion-aside rapid action mechanism of miniature circuit breaker | |
| CN202616152U (en) | Operating mechanism of small circuit breaker | |
| CN208548329U (en) | The operating mechanism and breaker of breaker | |
| CN201435358Y (en) | Operating mechanism of small residual current operated circuit breaker | |
| CN202633078U (en) | Moving device of isolating switch | |
| CN206877940U (en) | Miniature circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20120425 Assignee: ZHEJIANG CHINT ELECTRICS Co.,Ltd. Assignor: SHANGHAI NOARK ELECTRIC Co.,Ltd. Contract record no.: X2021330000593 Denomination of invention: Operating mechanism of miniature circuit breaker Granted publication date: 20131127 License type: Common License Record date: 20211025 |