CN206584884U - A kind of motor-operating mechanism of miniature circuit breaker - Google Patents
A kind of motor-operating mechanism of miniature circuit breaker Download PDFInfo
- Publication number
- CN206584884U CN206584884U CN201720365481.5U CN201720365481U CN206584884U CN 206584884 U CN206584884 U CN 206584884U CN 201720365481 U CN201720365481 U CN 201720365481U CN 206584884 U CN206584884 U CN 206584884U
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- Prior art keywords
- gear
- tripping
- motor
- drive sleeve
- breaker
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Abstract
The utility model is related to a kind of motor-operating mechanism of miniature circuit breaker, including shell, wiring board, transmission group, dropout group, transmission group includes motor, worm screw, gear train, rotating shaft, gear train includes the one-stage gear being meshed with worm screw, the secondary gear being meshed with one-stage gear, the tertiary gear being meshed with secondary gear, drive sleeve is movably set with the front of tertiary gear, there is a connecting portion at correspondence drive sleeve in rotating shaft, connected between connecting portion and drive sleeve by pull bar, there is a slide block being engaged with drive sleeve on the front of tertiary gear at the side of correspondence drive sleeve, tertiary gear toward breaker closing direction rotate when, tertiary gear is linked with drive sleeve, tertiary gear toward breaker open operation direction rotate when, tertiary gear freely coordinates with drive sleeve；The utility model has the advantages that simple in construction, stable and reliable for performance, manufacturing cost is low and can be reliably achieved dividing, closing a floodgate for breaker.
Description
Technical field
The utility model is related to breaker technical field, and in particular to a kind of motor-operating mechanism of miniature circuit breaker.
Background technology
At present, miniature circuit breaker is widely used in low voltage power distribution network, be mainly used in industry, business, it is high-rise and civilian
The various places such as house, overcurrent protection can be carried out to electrical equipments such as motor, distribution line, lighting circuits and electric leakage are protected
Shield.With the development of China's intelligent grid, on the premise of electric power netting safe running is required, to realizing that the intellectuality of control apparatus is got over
Come more eager.Should possess automatic reclosing function to tackle on new situation change, existing miniature circuit breaker.Small-sized open circuit
The motor-operating mechanism of device is a kind of annex for remote electronic separating brake and combined floodgate breaker, special small with pre-paying kilowatt-hour meter
Type breaker is used cooperatively, it is possible to achieve the combined floodgate again after paying.However, the motor-operating mechanism of existing miniature circuit breaker
Structure design it is unreasonable so that the motor-operating mechanism of the miniature circuit breaker is present, complicated, performance is unstable, be manufactured into
This high defect.
The content of the invention
The purpose of this utility model be to overcome the defect of prior art there is provided one kind it is simple in construction, stable and reliable for performance,
Manufacturing cost is low and can be reliably achieved the motor-operating mechanism of the miniature circuit breaker for dividing, closing a floodgate of breaker.
To achieve the above object, the utility model uses a kind of motor-operating mechanism of miniature circuit breaker, including shell, line
Road plate, transmission group, dropout group, described shell include pedestal and upper lid, and being constituted between pedestal and upper lid has an accommodating cavity, institute
The wiring board stated, transmission group, dropout group are separately positioned in accommodating cavity, and described transmission group includes motor, is arranged on motor
Worm screw, gear train, the rotating shaft for driving circuit breaker handle and being linked with gear train, gear train include mutually nibbled with worm screw
The one-stage gear of conjunction, the secondary gear being meshed with one-stage gear, the tertiary gear being meshed with secondary gear, described three-level
Being movably set with the front of gear in drive sleeve, described rotating shaft at correspondence drive sleeve has a connecting portion, connecting portion with
Connected between drive sleeve by pull bar, there is one and transmission at the side of correspondence drive sleeve on the front of described tertiary gear
Cover the slide block that is engaged, described tertiary gear toward breaker closing direction rotates when, tertiary gear links with drive sleeve matches somebody with somebody
Close, tertiary gear toward breaker open operation direction rotates when, tertiary gear and drive sleeve freely coordinate；Described wiring board control electricity
Machine is rotated forward, inverted, stopping action, and motor driving transmission group action and the reclosing action for realizing breaker；Described shell
On be provided with a hand/automatic reclosing switching mechanism, the hand/automatic reclosing switching mechanism includes setting in the circuit board
Power spring, it is movably arranged on switching plectrum in shell, the first connecting portion clamp of described power spring is led in the circuit board
The second connecting portion of electrical spring is movably arranged in the conductive hole on wiring board, is provided with and is matched with second connecting portion in conductive hole
The contact of conjunction, described power spring is linked with switching plectrum, and the second connecting portion of power spring is moved with switching plectrum
Make and can be open or closed with contact, realize closing or turning on for wiring board power supply.
The beneficial effect of said structure is：The transmission group of the motor-operating mechanism passes through motor-driven gear group, gear train
Axis of rotation is driven by pull bar, rotating shaft drives circuit breaker handle action, realizes the reclosing of breaker, and the three-level of gear train
Gear is set with drive sleeve using clutch structure, so that the transmission group is after reclosing, does not interfere with the separating brake of breaker, so that
The reliability of motor-operating mechanism work is improved, and the motor-operating mechanism has low excellent of simple in construction, manufacturing cost
Point, and dividing, closing a floodgate for breaker can be reliably achieved.And hand/automatic reclosing switching is provided with the motor-operating mechanism
Mechanism, operating personnel are by stirring switching plectrum, and switching plectrum promotes power spring action, the second connecting portion of power spring with
Contact in conductive hole is open or closed, can by the power-off of wiring board or connection so that realize manual reclosing function with
The switching of automatic reclosing function, in maintenance, the motor-operating mechanism can be switched to manual reclosing work by maintenance personal
Position, after incoming call suddenly in circuit, the motor-operating mechanism will not automatic reclosing, it is ensured that the personal safety of maintenance personal,
Improve the security performance of the motor-operating mechanism.
Especially, a slide slot is provided with described pedestal, described switching plectrum is arranged in slide slot, described
Switching plectrum both sides on be respectively arranged with a clamping piece, and each clamping piece and be provided with a clamping boss, it is described
Upper lid, be respectively arranged with two spacing necks being adapted with each clamping boss, described each clamping in the slide slot of pedestal
Boss with the action of switching plectrum and with corresponding spacing neck phase clamping, be provided with dew on the upper surface of described switching plectrum
Allocating slot outside housing.Switching plectrum is connected with shell by the way of clamping, consequently facilitating the assembling of switching plectrum and shell,
And two spacing necks being engaged with clamping boss are provided with pedestal, upper lid, operating personnel are promoted by allocating slot to be switched
Clamping boss on plectrum, clamping piece can be acted and can back and forth switched between two spacing necks with switching plectrum, so that real
Now switching of the switching plectrum between manual reclosing operating position and automatic reclosing operating position.
Especially, it is provided with a drive division on the lower surface of described switching plectrum, the middle part of described power spring
With the arc convex being engaged with a drive division portion, and it is convex that an arc for being sleeved on power spring is provided with drive division
Deep-slotted chip breaker in the portion of rising, the drive division can promote second connecting portion reciprocating action in conductive hole of power spring, and can realize
Second connecting portion is switched on or switched off with the contact in conductive hole.Power spring is sleeved on by being provided with switching plectrum
Deep-slotted chip breaker in arc convex portion, when deep-slotted chip breaker can ensure power spring action, will not shift, it is ensured that power spring
Second connecting portion and the contact reliable contacts in conductive hole, improve the reliability of the hand/automatic reclosing switching mechanism work.
Especially, described dropout group include be rotatably arranged in pedestal tripping, correspondence tripping at be arranged in pedestal
And the torsion spring being engaged with tripping, one end of described torsion spring contradicted on the limited post in pedestal, and the other end of torsion spring is contradicted
On gag lever post in tripping, the release lever being connected with breaker tripping mechanism, described three are provided with described tripping
There is a boss being engaged with tripping, described tertiary gear is rotated toward breaker closing direction on the reverse side of level gear
When, tertiary gear and tripping freely coordinate, described tertiary gear toward breaker open operation direction rotate when, on tertiary gear
Boss drives tripping to rotate and can realize the trip action of de- mouth group.The dropout group is when threading off, and tertiary gear is toward tertiary gear
Rotated toward breaker open operation direction, the boss drive tripping on tertiary gear is rotated, tripping drives release lever action, release lever drives
Dynamic breaker tripping mechanism action, so as to realize the tripping operation of breaker.
Especially, described tripping towards have on the side of boss on a hook part, described boss have one with
The circular arc mating surface that hook part is engaged, described tertiary gear toward breaker open operation direction rotate when, the circular arc mating surface of boss
Contradict on the hook part of tripping, and circular arc mating surface and the hook part linear contact lay of tripping.Using linear contact lay between tripping and boss
Mode coordinates, and tripping can be avoided stuck by boss, improves the reliability of tripping group work.
Brief description of the drawings
Fig. 1 is that the utility model embodiment removes the stereogram after upper lid.
Fig. 2 is that the utility model embodiment removes the stereogram after pedestal.
Fig. 3 is A portions enlarged drawing in Fig. 1.
Fig. 4 is the utility model pedestal and the assembling assumption diagram of dropout group.
Fig. 5 is the stereogram covered on the utility model.
Fig. 6 is the stereogram that the utility model switches plectrum.
Embodiment
As shown in figs. 1 to 6, the utility model embodiment is a kind of motor-operating mechanism of miniature circuit breaker, including shell
10th, wiring board 20, transmission group 30, dropout group 40, described shell 10 include pedestal 11 and upper lid 12, pedestal 11 and upper lid 12 it
Between constitute and have an accommodating cavity, described wiring board 20, transmission group 30, dropout group 40 are separately positioned in accommodating cavity, described
Transmission group 30 include motor 31, the worm screw 32 being arranged on motor 31, gear train 33, for driving circuit breaker handle and and gear
The rotating shaft 34 that group 33 is linked, gear train 33 includes the one-stage gear 331 being meshed with worm screw 32 and the phase of one-stage gear 331
On the secondary gear 332 of engagement, the tertiary gear 333 being meshed with secondary gear 332, the front of described tertiary gear 333
Being movably set with drive sleeve 35, described rotating shaft 34 at correspondence drive sleeve 35 has a connecting portion 341, connecting portion 341 with
Connected, had on the front of described tertiary gear 333 at the side of correspondence drive sleeve 35 by pull bar 36 between drive sleeve 35
One slide block 3331 for being engaged with drive sleeve 35, described tertiary gear 333 toward breaker closing direction rotate when, three-level
Gear 333 is linked with drive sleeve 35, tertiary gear 333 toward breaker open operation direction rotate when, tertiary gear 333 with transmission
Set 35 freely coordinates；The described controlled motor 31 of wiring board 20 is rotated forward, inverted, stopping action, and the driving transmission group 30 of motor 31
Act and realize the reclosing action of breaker；A hand/automatic reclosing switching mechanism 50 is provided with described shell 10,
The hand/automatic reclosing switching mechanism 50 include set assist side 20 on power spring 51, be movably arranged in shell 10
Switch plectrum 52, the clamp of first connecting portion 511 of described power spring 51 in the circuit board, the second connection of power spring 51
Portion 512 is movably arranged in the conductive hole 21 on wiring board 20, is provided with what is be engaged with second connecting portion 512 in conductive hole 21
Contact 22, described power spring 51 is linked with switching plectrum 52, and power spring 51 the second connection 512 with switching
Plectrum 52 acts and can be open or closed with contact 22, realizes closing or turning on for the power supply of wiring board 20.Hand/the automatic reclosing
Switching mechanism is by closing or turning on the power supply of wiring board, so as to realize cutting for manual reclosing function and automatic reclosing function
Change.
As shown in Fig. 3,4,5,6, a slide slot 111 is provided with described pedestal 11, described switching plectrum 52 is set
Put in slide slot 111, a clamping piece 521, and each clamping piece 521 are respectively arranged with the both sides of described switching plectrum 52
On be provided with a clamping boss 522, be respectively arranged with described upper lid 12, the slide slot 111 of pedestal 11 two with it is each
The spacing neck 112 that clamping boss 522 is adapted, described each clamping boss 522 acted with switching plectrum 52 and with it is corresponding
The phase clamping of spacing neck 112, be provided with the allocating slot 525 being exposed at outside housing 10 on the upper surface of described switching plectrum 52.Cut
Plectrum is changed to be connected by the way of clamping with shell, consequently facilitating the assembling of switching plectrum and shell, and be all provided with pedestal, upper lid
Two spacing necks being engaged with clamping boss are equipped with, operating personnel promote the card on switching plectrum, clamping piece by allocating slot
Connecing boss can act and can back and forth switch between two spacing necks with switching plectrum, so as to realize that switching plectrum is being weighed manually
Switching between combined floodgate operating position and automatic reclosing operating position.As shown in Fig. 1,2,3,6, described switching plectrum 52
It is provided with a drive division 523 on lower surface, there is one to be engaged with drive division 523 for the middle part of described power spring 51
An arc being sleeved in the arc convex portion 513 of power spring 51 is provided with arc convex portion 513, and drive division 523
Groove 524, the drive division 523 can promote the reciprocating action in conductive hole 21 of second connecting portion 512 of power spring 51, and can realize
Second connecting portion 512 is switched on or switched off with the contact 22 in conductive hole 21.Led by being provided with to be sleeved on switching plectrum
Deep-slotted chip breaker in the arc convex portion of electrical spring, when deep-slotted chip breaker can ensure power spring action, will not shift, it is ensured that lead
Contact reliable contacts in the second connecting portion and conductive hole of electrical spring, improve the hand/automatic reclosing switching mechanism work
Reliability.
As shown in Figure 2,4, described dropout group 40 includes being rotatably arranged on the tripping 41 in pedestal 11, corresponded at tripping 41
The torsion spring 42 being engaged in pedestal 11 and with tripping 41 is arranged on, one end conflict of described torsion spring 42 is spacing in pedestal 11
On post 113, the other end of torsion spring 42 is contradicted on the gag lever post 411 in tripping 41, is provided with described tripping 41 and open circuit
There is on the release lever 43 that device tripping mechanism is connected, the reverse side of described tertiary gear 333 one to be engaged with tripping 41
Boss 3332, described tertiary gear 333 toward breaker closing direction rotate when, tertiary gear 333 is freely matched somebody with somebody with tripping 41
Close, described tertiary gear 333 toward breaker open operation direction rotates when, the drive tripping 41 of boss 3332 on tertiary gear 333
Rotate and the trip action of de- mouth group 40 can be realized.The dropout group is when threading off, and tertiary gear divides toward tertiary gear toward breaker
Lock direction is rotated, and the boss drive tripping on tertiary gear is rotated, and tripping drives release lever action, and release lever driving breaker takes off
Buckle mechanism is acted, so as to realize the tripping operation of breaker.As shown in Fig. 2 described tripping 41 has towards on the side of boss 3332
Having on a hook part 412, described boss 3332 has a circular arc mating surface 3333 being engaged with hook part 412, described
Tertiary gear 333 toward breaker open operation direction rotate when, the circular arc mating surface 3333 of boss 3332 is contradicted in the hook part of tripping 41
On 412, and circular arc mating surface 3333 and the linear contact lay of hook part 412 of tripping 41.Between tripping and boss by the way of linear contact lay
Coordinate, tripping can be avoided stuck by boss, improve the reliability of tripping group work.
The transmission group of the motor-operating mechanism drives axis of rotation by motor-driven gear group, gear train by pull bar,
Rotating shaft drives circuit breaker handle action, realizes the reclosing of breaker, and the tertiary gear of gear train uses clutch with drive sleeve
Structure setting, so that the transmission group is after reclosing, does not interfere with the separating brake of breaker, so as to improve the motor-operating mechanism
The reliability of work, and the motor-operating mechanism has the advantages that simple in construction, manufacturing cost is low, and can be reliably achieved disconnected
Road device point, close a floodgate.And hand/automatic reclosing switching mechanism is provided with the motor-operating mechanism, operating personnel are by stirring
Switch plectrum, switching plectrum promotes power spring action, the contact in the second connecting portion and conductive hole of power spring disconnect or
Connect, can by the power-off of wiring board or connection, so as to realize the switching of manual reclosing function and automatic reclosing function,
In maintenance, the motor-operating mechanism can be switched to manual reclosing operating position by maintenance personal, when being sent a telegram here suddenly in circuit
Afterwards, the motor-operating mechanism will not automatic reclosing, it is ensured that the personal safety of maintenance personal, improves the motor-operating mechanism
Security performance.
Claims (5)
1. a kind of motor-operating mechanism of miniature circuit breaker, including shell, wiring board, transmission group, dropout group, described shell bag
Pedestal and upper lid are included, being constituted between pedestal and upper lid has an accommodating cavity, described wiring board, transmission group, dropout group are set respectively
Put in accommodating cavity, it is characterised in that：Described transmission group include motor, the worm screw being arranged on motor, gear train, for driving
Dynamic circuit breaker handle and the rotating shaft being linked with gear train, gear train include one-stage gear and the one-level being meshed with worm screw
Activity is set on secondary gear that gear is meshed, the tertiary gear being meshed with secondary gear, the front of described tertiary gear
Be equipped with drive sleeve, described rotating shaft has a connecting portion at correspondence drive sleeve, passes through pull bar between connecting portion and drive sleeve
There is a slide block being engaged with drive sleeve on connection, the front of described tertiary gear at the side of correspondence drive sleeve,
Described tertiary gear toward breaker closing direction rotate when, tertiary gear is linked with drive sleeve, tertiary gear toward open circuit
When device separating brake direction is rotated, tertiary gear freely coordinates with drive sleeve；Described wiring board controlled motor is rotated forward, inverts, stopped
Action, and motor driving transmission group action and the reclosing action for realizing breaker；Be provided with described shell a hand/from
Dynamic reclosing switching mechanism, the hand/automatic reclosing switching mechanism includes setting power spring in the circuit board, activity to set
Change plectrum in shell inscribe, the first connecting portion clamp of described power spring in the circuit board, the second connection of power spring
Portion is movably arranged in the conductive hole on wiring board, and the contact being engaged with second connecting portion is provided with conductive hole, described
Power spring is linked with switching plectrum, and the second connecting portion of power spring is acted and can disconnected with contact with switching plectrum
Or connect, realize closing or turning on for wiring board power supply.
2. the motor-operating mechanism of miniature circuit breaker according to claim 1, it is characterised in that：Set on described pedestal
There is a slide slot, described switching plectrum is arranged in slide slot, one is respectively arranged with the both sides of described switching plectrum
It is provided with a clamping boss on individual clamping piece, and each clamping piece, is respectively arranged with described upper lid, the slide slot of pedestal
Two spacing necks for being adapted with each clamping boss, described each clamping boss with the action of switching plectrum and with corresponding limit
The allocating slot being exposed at outside housing is provided with position neck phase clamping, the upper surface of described switching plectrum.
3. the motor-operating mechanism of miniature circuit breaker according to claim 1 or 2, it is characterised in that：Described switching is dialled
A drive division is provided with the lower surface of piece, the middle part of described power spring has an arc being engaged with drive division
A deep-slotted chip breaker being sleeved in the arc convex portion of power spring is provided with lug boss, and drive division, the drive division can be pushed away
The reciprocating action in conductive hole of the second connecting portion of moving conductive spring, and second connecting portion and the contact in conductive hole can be realized
It is switched on or switched off.
4. the motor-operating mechanism of miniature circuit breaker according to claim 1, it is characterised in that：Described dropout group includes
The torsion spring being engaged in pedestal and with tripping, described torsion spring are arranged at the tripping that is rotatably arranged in pedestal, correspondence tripping
One end contradict on limited post in pedestal, the other end of torsion spring is contradicted on the gag lever post in tripping, in described tripping
It is provided with the release lever being connected with breaker tripping mechanism, on the reverse side of described tertiary gear there is one to match with tripping
The boss of conjunction, described tertiary gear toward breaker closing direction rotate when, freely coordinating for tertiary gear and tripping is described
Tertiary gear toward breaker open operation direction rotate when, the boss on tertiary gear drives tripping to rotate and can realize the de- of de- mouth group
Pull work.
5. the motor-operating mechanism of miniature circuit breaker according to claim 4, it is characterised in that：Described tripping is towards convex
Having on the side of platform has a circular arc mating surface being engaged with hook part, described three on a hook part, described boss
Level gear toward breaker open operation direction rotates when, the circular arc mating surface conflict of boss is on the hook part of tripping, and circular arc mating surface
With the hook part linear contact lay of tripping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720365481.5U CN206584884U (en) | 2017-04-07 | 2017-04-07 | A kind of motor-operating mechanism of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720365481.5U CN206584884U (en) | 2017-04-07 | 2017-04-07 | A kind of motor-operating mechanism of miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206584884U true CN206584884U (en) | 2017-10-24 |
Family
ID=60092660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720365481.5U Expired - Fee Related CN206584884U (en) | 2017-04-07 | 2017-04-07 | A kind of motor-operating mechanism of miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206584884U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695119A (en) * | 2017-04-07 | 2018-10-23 | 寺崎科技有限公司 | A kind of motor-operating mechanism of miniature circuit breaker |
-
2017
- 2017-04-07 CN CN201720365481.5U patent/CN206584884U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695119A (en) * | 2017-04-07 | 2018-10-23 | 寺崎科技有限公司 | A kind of motor-operating mechanism of miniature circuit breaker |
| CN108695119B (en) * | 2017-04-07 | 2020-03-31 | 寺崎科技有限公司 | Electric operating mechanism of miniature circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171024 Termination date: 20210407 |