CN101577196B - Electric control switch-on operating mechanism for miniature breaker - Google Patents
Electric control switch-on operating mechanism for miniature breaker Download PDFInfo
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- CN101577196B CN101577196B CN2009100400164A CN200910040016A CN101577196B CN 101577196 B CN101577196 B CN 101577196B CN 2009100400164 A CN2009100400164 A CN 2009100400164A CN 200910040016 A CN200910040016 A CN 200910040016A CN 101577196 B CN101577196 B CN 101577196B
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- arm
- tie
- breach
- circuit breaker
- lever
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- 230000000694 effects Effects 0.000 claims description 16
- 238000012797 qualification Methods 0.000 claims description 15
- 210000000078 claw Anatomy 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 6
- 230000000881 depressing effect Effects 0.000 description 3
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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Abstract
The invention discloses an operational control mechanism for a miniature breaker, and in particular relates to an electric control switch-on operating mechanism, which uses a motor to control the rotation of a shifting block and drive a lever to upraise and simultaneously uses a pulling plate at the lower end of a pull rod to hold up a handle of the miniature breaker. The shifting block of the mechanism can be separated under the action of an extended arm and the lever and uses a pressing rod thereof to act on a microswitch when the shifting block returns to the initial position so as to stop a motor. The mechanism has the characteristics of smooth operation, even action, no impact and the like.
Description
Technical field
The invention belongs to a kind of operation controlling organization of circuit breaker, relate to a kind of automatic closing operation of miniature circuit breaker, more specifically, be that a kind of rotation of Electric Machine Control shifting block and drive lever of utilizing lifts, simultaneously, by the effect of pull bar, make arm-tie the operating mechanism that the handle of miniature circuit breaker is cocked of pull bar lower end by electric control switch-on.
Background technology
Existing miniature circuit breaker, when load short circuit or electric current occur when excessive, the separating brake of threading off automatically is with dump, and handle is downward by bullet simultaneously.After the attendant gets rid of fault, reclose power supply, must miniature circuit breaker be closed a floodgate by manually upwards pulling handle.
Summary of the invention
The object of the present invention is to provide a kind of electric control switch-on operating mechanism of miniature circuit breaker, this mechanism provides a button, by the operation of button, can be driven the cocked of pull bar joystick by the rotation of motor and the automatic operation of realization combined floodgate.
Purpose of the present invention is realized by following scheme:
A kind of electric control switch-on operating mechanism of miniature circuit breaker is characterized in, comprising:
A housing;
A motor that is fixed on the housing;
A shifting block that is fixed on the machine shaft;
A lever, its run-on point is connected on the housing;
A pull bar, the one end is connected on the lever;
An arm-tie that is connected in the pull bar other end, this arm-tie are formed with the projected claw that can cooperate with the miniature circuit breaker handle;
A sensitive switch that is fixed on the housing, this sensitive switch pressured state just cut off the motor power free state and then are communicated with motor power;
Start button for people's operation, or one group of contact of the relay of remote control equipment are being controlled the initial supply of motor power;
Described shifting block is in rotating process, and its cantilever arm can contact with the effect piece on the described lever, drives described lever and lifts, and separating with the effect piece subsequently; Described shifting block is got back to its pressing lever of initial position and is acted on the sensitive switch in rotation process.
Like this, can press start button earlier in short-term, perhaps make one group of contacting of the relay of remote control equipment, allow the power supply short time power to motor, motor just begins to rotate, and makes the shifting block pressing lever leave sensitive switch, at this moment, sensitive switch just is communicated with motor power, keep motor and be rotated further, then, the shifting block cantilever arm contacts in minimum point with effect piece on the lever, the drive lever lifts, and spurring on the arm-tie by pull bar and to move, the projected claw of arm-tie is acted on the handle of miniature circuit breaker, make handle by evenly cocked, realize closing a floodgate and the connection circuit breaker to the peak place, subsequently, the shifting block cantilever arm separates with effect piece on the lever, and the shifting block cantilever arm continues to rotate and get back to initial position under the effect of motor, when its pressing lever acts on the sensitive switch, just cut off motor power, motor stops operating, and pressing lever also maintains on the sensitive switch, simultaneously, lever maintains the place, top position by pull bar by the support of circuit breaker handle.
When load is broken down, the circuit breaker automatic brake separating will make handle by under the bullet, drive arm-tie simultaneously and will move down, and make the leverage piece get back to below place, for automatic closing has next time been done preparation.
Obtained a kind of operating mechanism that can realize the miniature circuit breaker that closes a floodgate by push-botton operation thus, and this mechanism realizes having even action, shock-free characteristics by mechanical type lever and motor-driven cooperation.
In addition as seen, the proposition of this mechanism need not improve the structure of existing circuit breaker, thereby transforms also simple.
Importantly, shifting block by cantilever arm except the effect of shifting lever, also with separating with lever subsequently, and depress sensitive switch by pressing lever and cut off the electricity supply to the effect of motor power supply, like this, handle is pulled down and is driven lever and get back to the home position and eliminated obstacle when can be fault, simultaneously, for the accurate location of shifting block pressing lever also provides assurance, can play preventing that motor from can not in time stop operating and the problem that mistake is stirred occurs.
In the such scheme, the free-ended effect piece of lever is a roller, the arc of roller outer surface, can make the shifting block cantilever arm easily realize separating along sliding with roller at height point, in addition, the upper rear portion of shifting block cantilever arm also is made into arc, and the contact limit that makes high point is in a bit, and roller slide to the back side of shifting block cantilever arm at height point place and separate also can be level and smooth.
In the such scheme, for a gathering sill is brought up in the rotation of lever, this gathering sill is fixed on the surface of housing, between machine shaft and pull bar, make lever in rotating process, on fore-and-aft direction, be restricted and keep on a vertical plane, the accuracy that the position cooperates between the effect piece that can further guarantee lever and the cantilever arm of shifting block.
In the such scheme, also can be moving up and down of arm-tie and bring up a qualification breach, this qualification breach is fixed in the bottom of surface of shell, be positioned at the below of pull bar, can make the projected claw of arm-tie be in the below by this qualification breach, and the top of arm-tie is arranged in this qualification breach, with the skew of restriction arm-tie on left and right directions.
Be more preferably, in the such scheme, in the two ends that limit breach auxiliary wheel is installed all, auxiliary wheel is charged into to breach, can be fitted with the surface of arm-tie in the surface of two auxiliary wheels, guarantees that the surface of arm-tie and the lower edge that limits breach keep apart, can make arm-tie in the process that moves up and down, isolation by by auxiliary wheel prevents hard friction, plays the effect of gliding smoothing.
Thus obtained operating mechanism, because when the handle of circuit breaker contacts with arm-tie, the effect that outwards heads on arm-tie is arranged, make arm-tie can paste roller, and limiting the position of lever by pull bar, and under the common restriction of gathering sill, can guarantee the accuracy of lever positions, thereby the effect piece of further guaranteeing lever can be aimed at the cantilever arm of shifting block.
Be more preferably, in the such scheme, arm-tie is in the top of projected claw, also be formed with a support lugn, this support lugn be positioned at the circuit breaker handle position above, under the breaker closing state, it is pulled upwards handle and can be " lever-pull bar-arm-tie " combination by support lugn and provide support power, assurance makes the free end of lever can remain on the top and can not fall further, particularly can guarantee can not constitute influence to being rotated further of shifting block cantilever arm.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the present invention;
Fig. 2 is the schematic diagram of the mechanical structure of Fig. 1 mechanism;
Fig. 3 is the schematic rear view of the arm-tie of Fig. 2.
Embodiment
Below in conjunction with accompanying drawing the present invention is made further detailed description:
With reference to Fig. 1, Fig. 2 and Fig. 3, electric control switch-on operating mechanism comprises housing 1, is fixed on the motor 2 on the housing 1, and it is protruding that machine shaft 21 passes through hole, is fixed with shifting block 3 in the end of stretching out, and shifting block 3 has outstanding cantilever arm 31 and pressing lever 32; Lever 4 is connected on the surface of housing 1 by its run-on point 41, the middle part of lever 4 is connected with pull bar 5, and the free end of lever 4 is fixed with roller 42, and the other end of pull bar 5 is fixed with arm-tie 6, arm-tie 6 has projected claw 61, and projected claw 61 can collude the handle A1 of circuit breaker A.When initial, breaker open operation, handle is in the state pulled down, and lever 4 free-ended rollers 42 are positioned at minimum point; Sensitive switch 7 is fixed on the housing 1 in the below of machine shaft 21, when its compressing tablet 71 is subjected to depressing, this sensitive switch 7 is in pressured state and just cuts off motor 2 power supplys, and when compressing tablet 71 was not subjected to depressing, sensitive switch 7 was in free state and connects motor 2 power supplys.When initial, the pressing lever 32 of shifting block 3 just acts on the sensitive switch 7, and compressing tablet 71 is depressed; 8 of start buttons are connected the power supply of motor 2 when pushing, controlling the initial supply of motor power.In addition, also comprise gathering sill 9, limit breach 10, auxiliary wheel 11 and support lugn 62, gathering sill 9 and qualification breach 10 all are fixed on the surface of housing 1, and gathering sill 9 is between machine shaft 21 and pull bar 5, and lever 4 then is arranged in gathering sill 9; Limit the bottom that breach 10 is positioned at housing 1 surface, the top of arm-tie 6 is arranged in and limits breach 10; Two auxiliary wheels 11 are fixed on the breach two ends that limit breach 10, and two auxiliary wheels 11 are inwardly charged into, and the surface of two auxiliary wheels 11 is attached on the outer surface of arm-tie 6, and the outer surface of arm-tie 6 and the lower edge that limits breach are kept apart; Support lugn 62 is formed on the arm-tie 6, is positioned at the top of projected claw 61.
When motor 2 gets electric work, machine shaft 21 will drive shifting block 3 and rotate, and make the pressing lever 32 of shifting block 3 leave the compressing tablet 71 of sensitive switch 7, then, the cantilever arm 31 of shifting block 3 contacts with the roller 42 of lever 4, not open close roller 42 excessively lifts the free end of lever 4, subsequently, reaches the roller 42 of lever 4 is lifted to peak, and separate with roller 42 herein, at last, shifting block 3 is got back to initial position, and its pressing lever 32 is depressed on the compressing tablet 71 of sensitive switch.
This mechanism when work, the power supply that can be provided to motor 2 short time by start button 8, leave the compressing tablet 71 of push switch 7 when pressing lever 32 after because push switch 7 is in free state and connects the power supply of motor 2, make motor 2 to work on; When the free end of lever 4 constantly lifts under the control of gathering sill 9, to drive arm-tie 6 reposefully by pull bar 5, and under the help of two auxiliary wheels 11, in limiting breach 10, move up exactly, by the cocked equably circuit breaker handle of projected claw 61, make breaker closing; In addition, breaker closing is in the time of on the handle wrench, support lugn 62 be positioned at circuit breaker handle above, under the support of handle, can make lever 4 free-ended rollers 42 can remain on height and put and can not fall, guarantee can not constitute influence to being rotated further of shifting block cantilever arm 31; Moreover when compressing tablet 71 is pressed bar 32 when depressing, push switch 7 just cuts off the power supply of motor 2 in time, and motor 2 stops operating.Like this, just, finished the closing operation of a circuit breaker.
Claims (10)
1. the electric control switch-on operating mechanism of a miniature circuit breaker is characterized in that, comprising:
A housing;
A motor that is fixed on the housing;
A shifting block that is fixed on the machine shaft;
A lever, its run-on point is connected on the housing;
A pull bar, the one end is connected on the lever;
An arm-tie that is connected in the pull bar other end, this arm-tie are formed with the projected claw that can cooperate with the miniature circuit breaker handle;
A sensitive switch that is fixed on the housing, this sensitive switch are in pressured state just to cut off motor power and is in free state and then is communicated with motor power;
Start button for people's operation, or one group of contact of the relay of remote control equipment are being controlled the initial supply of motor power;
Described shifting block is in rotating process, and its cantilever arm can contact with the effect piece on the described lever, drives described lever and lifts, and separating with the effect piece subsequently; Described shifting block is got back to initial position in rotation process, the pressing lever of described shifting block acts on the sensitive switch.
2. according to the electric control switch-on operating mechanism of the miniature circuit breaker of claim 1, it is characterized in that the free-ended effect piece of lever is a roller, the upper rear portion of shifting block cantilever arm is made into arc.
3. according to the electric control switch-on operating mechanism of the miniature circuit breaker of claim 1 or 2, it is characterized in that, is that a gathering sill is brought up in the rotation of lever, and this gathering sill is fixed on the surface of housing, between machine shaft and pull bar.
4. according to the electric control switch-on operating mechanism of the miniature circuit breaker of claim 1 or 2, it is characterized in that, bring up one for moving up and down of arm-tie and limit breach, this qualification breach is fixed in the bottom of surface of shell, be positioned at the below of pull bar, can make the projected claw of arm-tie be in this qualification breach below, and the top of arm-tie is arranged in this qualification breach by this qualification breach.
5. according to the electric control switch-on operating mechanism of the miniature circuit breaker of claim 3, it is characterized in that, bring up one for moving up and down of arm-tie and limit breach, this qualification breach is fixed in the bottom of surface of shell, be positioned at the below of pull bar, can make the projected claw of arm-tie be in this qualification breach below, and the top of arm-tie is arranged in this qualification breach by this qualification breach.
6. according to the electric control switch-on operating mechanism of the miniature circuit breaker of claim 4, it is characterized in that in the two ends that limit breach auxiliary wheel is installed all, auxiliary wheel is charged into to described qualification breach, can be fitted with the surface of arm-tie in the surface of two auxiliary wheels.
7. according to the electric control switch-on operating mechanism of the miniature circuit breaker of claim 5, it is characterized in that in the two ends that limit breach auxiliary wheel is installed all, auxiliary wheel is charged into to described qualification breach, can be fitted with the surface of arm-tie in the surface of two auxiliary wheels.
8. according to the electric control switch-on operating mechanism of the miniature circuit breaker of claim 1, it is characterized in that arm-tie also is formed with a support lugn in the top of projected claw.
9. according to the electric control switch-on operating mechanism of the miniature circuit breaker of claim 6, it is characterized in that arm-tie also is formed with a support lugn in the top of projected claw.
10. according to the electric control switch-on operating mechanism of the miniature circuit breaker of claim 7, it is characterized in that arm-tie also is formed with a support lugn in the top of projected claw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100400164A CN101577196B (en) | 2009-05-31 | 2009-05-31 | Electric control switch-on operating mechanism for miniature breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100400164A CN101577196B (en) | 2009-05-31 | 2009-05-31 | Electric control switch-on operating mechanism for miniature breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101577196A CN101577196A (en) | 2009-11-11 |
| CN101577196B true CN101577196B (en) | 2011-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100400164A Active CN101577196B (en) | 2009-05-31 | 2009-05-31 | Electric control switch-on operating mechanism for miniature breaker |
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| Country | Link |
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| CN (1) | CN101577196B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103077864B (en) * | 2012-12-28 | 2015-07-01 | 巨邦电气集团有限公司 | Breaking-braking operation mechanism for low-voltage circuit breaker |
| CN103594296B (en) * | 2013-11-21 | 2015-12-02 | 巨邦电气集团有限公司 | A kind of combined floodgate on/off operation mechanism of circuit breaker |
| CN103646829B (en) * | 2013-12-10 | 2016-08-24 | 巨邦电气集团有限公司 | A kind of chopper with reclosing function |
| CN108390268A (en) * | 2018-04-28 | 2018-08-10 | 广东电网有限责任公司 | Switch board |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0572970B1 (en) * | 1992-06-02 | 1997-01-15 | Mitsubishi Denki Kabushiki Kaisha | Electric operating device for circuit breaker |
| CN1273678A (en) * | 1997-10-08 | 2000-11-15 | 西门子公司 | Remote-controlled mechanism with motor for circuit breaker |
| CN201138646Y (en) * | 2007-11-30 | 2008-10-22 | 赵建清 | Electricity driving leakage breaker |
-
2009
- 2009-05-31 CN CN2009100400164A patent/CN101577196B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0572970B1 (en) * | 1992-06-02 | 1997-01-15 | Mitsubishi Denki Kabushiki Kaisha | Electric operating device for circuit breaker |
| CN1273678A (en) * | 1997-10-08 | 2000-11-15 | 西门子公司 | Remote-controlled mechanism with motor for circuit breaker |
| CN201138646Y (en) * | 2007-11-30 | 2008-10-22 | 赵建清 | Electricity driving leakage breaker |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2001-118483A 2001.04.27 |
| JP特开2003-115251A 2003.04.18 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101577196A (en) | 2009-11-11 |
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| 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 | ||
| ASS | Succession or assignment of patent right |
Owner name: FATAI ELECTRICAL APPARATUS (JIANGSU) CO., LTD. Free format text: FORMER OWNER: MAI GUANGWEI Effective date: 20120409 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 521000 CHAOZHOU, GUANGDONG PROVINCE TO: 215131 SUZHOU, JIANGSU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20120409 Address after: Kang Yuan Xiangcheng Development Zone in Suzhou City, Jiangsu province 215131 No. 666 Patentee after: Foretech Elec. App. (Jiangsu) Corp., Ltd. Address before: Two, 401, 521000, Nanan, Guangdong, Chaozhou, Xiangqiao Province Patentee before: Mai Guangwei |