CN104377092B - A kind of miniature circuit breaker - Google Patents
A kind of miniature circuit breaker Download PDFInfo
- Publication number
- CN104377092B CN104377092B CN201410512817.7A CN201410512817A CN104377092B CN 104377092 B CN104377092 B CN 104377092B CN 201410512817 A CN201410512817 A CN 201410512817A CN 104377092 B CN104377092 B CN 104377092B
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- China
- Prior art keywords
- trip
- ping
- bar
- rotating shaft
- circuit breaker
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/1009—Interconnected mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/504—Manual reset mechanisms which may be also used for manual release provided with anti-rebound means
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
The invention discloses a kind of miniature circuit breaker, including trip portion and opening/closing portion, wherein said trip portion includes being affected by overcurrent and is moved to the mobile hanging hole of position two by position one and front end activity is overlapped in the trip(ping) bar in described mobile hanging hole, described trip(ping) bar is fixed on substrate by the first rotating shaft, described trip(ping) bar end connects has spring one, described spring one to give described trip(ping) bar along described first rotating shaft Clockwise rotational force；Opening/closing portion, including the handle carrying out reciprocating rotation centered by the second rotating shaft between position three and position four and the connector being flexibly connected with described handle lower end projection, described handle lower end is additionally provided with stem guiding trough, described trip(ping) bar passes in described stem guiding trough, described trip(ping) bar and be positioned between the 3rd rotating shaft below described trip(ping) bar and be provided with spring two, described spring two gives described trip(ping) bar along described first rotating shaft counter-rotational forces, and described connector is movably connected on described 3rd rotating shaft and along the 3rd axis of rotation；Described connector bottom sidewall connects wire connecting ends, moves with described connector, and described wire connecting ends disconnects with contact point, circuit breaker.
Description
Technical field
The present invention relates to a kind of chopper, particularly to a kind of miniature circuit breaker.
Background technology
Generally miniature circuit breaker (Miniature Circuit Breaker, MCB) is arranged on circuit, with protection
Family or industrial power distribution disc system, be to block to occur on overload, overcurrent or short circuit current and Simple line
Abnormal current, protection subordinate's end or the device of load.
Utility model patent the 20-0462420th discloses a kind of small-size moulded case circuit breaker, when sending out on circuit
During raw abnormal current, tripgear trips.Tripgear is by breaking coil, by described breaking coil
Internal e.m.f. impact and movement and when there is abnormal current according to releasing trip(ping) bar lower end and the lock of breech lock
The moving coil of determining direction and pressurize, promote the top of trip(ping) bar when there is abnormal current due to thermal deformation
The bimetal leaf composition turned round to the position unclamping breech lock.
The small-size moulded case circuit breaker of the practical new invention the 20-0462420th of described registration uses and is occurring extremely
During electric current, the structure turned round to the direction with clear-latch lock-out state by trip(ping) bar, including possessing tripping operation
The electromagnetic type tripgear of coil and movable core, and possess the heat-sensitive type tripgear of bimetal leaf, because of
This can improve the reliability of trip operation, but the mounting structure that shortcoming is tripgear becomes complicated, with door bolt
Centered by the hinge axis of lock, movable core is positioned at lower end part, and bimetal leaf is positioned at upper-end part of driving, so
Just occupy the substantial amounts of installing space of opening and closing utensil, be unfavorable for making the chopper of miniaturization.
Based on the above, the necessary property of exploitation of a kind of small-sized Disjoncteur.
Summary of the invention
The present invention solves described problem, propose a kind of miniature circuit breaker, it is intended to realize chopper miniaturization
While, it is ensured that tripgear still quick and precisely can start when there is abnormal current, improves the letter of product
Lai Xing.
A kind of miniature circuit breaker, including trip portion 300 and opening/closing portion 400, wherein, trip portion 300 includes
Affected by overcurrent and moved to the mobile hanging hole 342 of position two by position one and front end activity is overlapped in described
Trip(ping) bar 420 in mobile hanging hole 342, described trip(ping) bar 420 is fixed on substrate 110 by the first rotating shaft 425
On, described trip(ping) bar end 423 connects has spring 1, described spring 1 to give described trip(ping) bar 420
Along described first rotating shaft 425) Clockwise rotational force；Opening/closing portion 400 includes centered by the second rotating shaft 418 in place
Put and carry out the handle 410 of reciprocating rotation between three and position four and connect with the projection activity of described handle 410 lower end
The connector 430 connect, described handle 410 lower end is additionally provided with stem guiding trough 415, and described trip(ping) bar 420 is from described
Pass in stem guiding trough 415, described trip(ping) bar 420 and the 3rd rotating shaft 440 being positioned at below described trip(ping) bar 420
Between be provided with spring 2 450, it is inverse along described first rotating shaft 425 that described spring 2 450 gives described trip(ping) bar 420
Hour hands rotatory force, described connector 430 is movably connected on described 3rd rotating shaft 440 and along the 3rd rotating shaft 440
Rotate；Wherein, during overcurrent, described mobile hanging hole 342 moves to described position two from described position one,
Described trip(ping) bar front end is deviate from described mobile hanging hole 342, by the restoring force effect of described spring 2 450,
Described trip(ping) bar 420 rotates counterclockwise along described first rotating shaft 425, and described trip(ping) bar 420 drives described
Handle 410 rotates counterclockwise along described second rotating shaft 418, and described handle 410 lower end projection is supported described
Connector 430 upper recess makes described connector 430 move and rotates along described 3rd rotating shaft 440, institute
State connector 430 bottom sidewall to connect and have wire connecting ends 438, move with described connector 430, described in lead
Line connects end 438 and disconnects with contact point, circuit breaker.
Preferably, described miniature circuit breaker, wherein, described trip portion 300 also includes that outer wall is wound around
Have coil 320 oil damper 310 and by overcurrent in described coil 320 affected on set described movement and hang
The armature 340 in hole 342, described armature 340 is affected by overcurrent is moved to described position by described position one
Two.
Preferably, described miniature circuit breaker, wherein, described coil 320 1 termination load wire,
One termination output lead, the described output lead other end is connected to described wire connecting ends 438.
Preferably, described miniature circuit breaker, wherein, described trip(ping) bar 420 include being positioned at described in lead
Part I 421 in bar groove 415, it is bent downwardly and is affiliated to along described Part I 421 one end in described shifting
Move the described trip(ping) bar front end in hanging hole 342, be bent downwardly along described Part I 421 other end and be provided with
The described trip(ping) bar end 423 of the first shaft hole, described first shaft hole mates with described first rotating shaft 425.
Preferably, described miniature circuit breaker, wherein, it is additionally provided with one inside described stem guiding trough 415 convex
Wheel 416, described cam 416 is pressed down against described Part I 421.
Preferably, described miniature circuit breaker, wherein, described handle 410 includes being sheathed on described
Parent 411 in two rotating shafts 418, the rotary handle 412 extended outside housing from described parent 411 and from institute
State the projection that parent 411 extends, described protruding and described connector 430 upper end to described connector 430 direction
Groove match.
Preferably, described miniature circuit breaker, wherein, described Part I 421 and described trip(ping) bar
A projection 424 it is additionally provided with for limiting the described the most described Part I of stem guiding trough 415 421 between end 423
Sliding scale.
Preferably, described miniature circuit breaker, wherein, described connector 430 includes parallel relative
The first side wall 431 and the second sidewall 432, and connect described the first side wall 431 and described second sidewall 432
The 3rd sidewall, described the first side wall 431 and described second sidewall 432 upper end are equipped with described groove, institute
State the 3rd side wall lower ends surface and be provided with described wire connecting ends 438.
Preferably, described miniature circuit breaker, wherein, described protruding with described the first side wall 431 and
Described 432 angles of second sidewall are less than 180 °.
Preferably, described miniature circuit breaker, wherein, described wire connecting ends 438 be located at housing
Interior fixed contact 224 touching connects, and described fixed contact 224 is electrically connected to power supply.
The beneficial effect of the miniature circuit breaker that the present invention provides: trip portion organically mutual with opening/closing portion opens
Dynamic, can quick and precisely perform trip operation.
Accompanying drawing explanation
Fig. 1 is the surface structure schematic diagram of the miniature circuit breaker described in one embodiment of the invention；
Fig. 2 is the internal structure schematic diagram of the miniature circuit breaker described in one embodiment of the invention；
Fig. 3 is the decomposing schematic representation to Fig. 2；
Fig. 4 is the miniature circuit breaker normal current flow view described in one embodiment of the invention；
Fig. 5 be described in one embodiment of the invention under normal current flow state, operator operate rotation
Handle causes the state of tripping operation；
Fig. 6 be described in one embodiment of the invention when abnormal current occurs, trip(ping) bar unlocks and the inverse time
Pin rotates schematic diagram；
Fig. 7 is one embodiment of the invention, and display is when Fig. 6, by the recuperability of spring two, even
The process that fitting and trip(ping) bar turn clockwise；
Under the state that Fig. 8 shows Fig. 7, rotary handle forms tripped condition with trip(ping) bar linkage rotation.
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art's reference
Description word can be implemented according to this.
In conjunction with accompanying drawing 1 to accompanying drawing 8, composition and the effect of miniature circuit breaker disclosed in this invention are had
Body explanation.
With reference to shown in Fig. 1, for miniature circuit breaker overall appearance structural representation of the present invention, this
Bright miniature circuit breaker includes: sidewall offer mains side port 220 substrate 110 and with described substrate 110
Can fasten the dismountable lid 120 being integrated, described substrate 110 fastens with described lid 120 and forms box
100:
With reference to shown in Fig. 2, for miniature circuit breaker internal structure schematic diagram of the present invention, can from figure
To find out, port part 200 is by being positioned at the load-side port 210 of described substrate 110 side and being positioned at described base
The mains side port 220 of plate 110 opposite side forms, described load-side port 210 and mains side port 220 points
Not by the 1st terminal 211 being installed on substrate 110,221, and with terminal clamp 213, the rotation linkage of 223 rises
2nd terminal 212 of fall, 222 are constituted.
With reference to shown in Fig. 3, for miniature circuit breaker exploded view of the present invention, it can be seen that
Described load-side port 210 and mains side port 220 are energized, when load-side generation overcurrent or short circuit etc. are different
Often during electric current, described trip portion 300 releases the lock-out state with trip(ping) bar 420, allows the mechanism of opening/closing portion 400
Starting, wire connecting ends 438 separates (see Fig. 4) with the fixed contact 224 of mains side port 220.
In conjunction with accompanying drawing 3 to accompanying drawing 8, trip portion in miniature circuit breaker internal structure disclosed in this invention is described
300 and the concrete structure of opening/closing portion 400 and effect.
Composition and the effect of trip portion 300 are described below.
Trip portion 300 includes being affected by overcurrent being moved to the mobile hanging hole 342 of position two and front by position one
End activity is overlapped in the trip(ping) bar 420 in described mobile hanging hole 342, and described trip(ping) bar 420 is by the first rotating shaft
425 are fixed on substrate 110, and described trip(ping) bar end 423 connects spring 1, described spring 1
Give described trip(ping) bar 420 along described first rotating shaft 425 Clockwise rotational force；Trip portion 300 also includes outer wall
Be wound with coil 320 oil damper 310 and by overcurrent in described coil 320 affected on set described shifting
The armature 340 of dynamic hanging hole 342, described armature 340 is affected by overcurrent is moved to institute's rheme by described position one
Put two.Described coil 320 1 termination load wire, a termination output lead, the described output lead other end
It is connected to wire connecting ends 438.
Shown in Figure 4, when circuit is normal, by rated current on described coil 320, in coil 320
Electric current produce electromotive force less than elastomeric element elastic force, now trip(ping) bar 420 is maintained at mobile hanging hole 342
In, the end of trip(ping) bar 420 forms lock pawl 422a and keeps lock-out state, and now opening/closing portion 400 is maintained at
On-position.
When loading lateral breaking coil 320 and accessing overcurrent, breaking coil 320 can occur and electric current
The electromotive force being in proportion, electromotive force for the effect of armature 340 if it exceeds the restoring force of elastomeric element
Size, then oil damper 310 inner plunger moves, and pole piece 314 reduces with plunger spacing, the magnetic on pole piece 314
Property makes the head 341 of armature 340 move towards the direction of pole piece 314.The tripping operation locked by mobile hanging hole 342
Bar 420 unlocks state, trips.
It is arranged side by side according to the composition of described trip portion 300, oil damper 310 and armature 340, can reduce
Installing space, on-position stably can be fixed on tram armature 340, and when connecting overcurrent
Time, tripped condition then can quickly trigger startup.
Composition and the effect of described opening/closing portion 400 are described below.
Opening/closing portion 400 includes carrying out between position three and position four centered by the second rotating shaft 418 back and forth
The handle 410 rotated and the connector 430 being flexibly connected with described handle 410 lower end projection, described handle
410 include the parent 411 being sheathed in described second rotating shaft 418, extend outside housing from described parent 411
Rotary handle 412 and the projection that extends to described connector 430 direction from described parent 411, described projection
Match with described connector 430 upper recess.Described handle 410 lower end is additionally provided with stem guiding trough 415, described
Trip(ping) bar 420 passes in described stem guiding trough 415, and described trip(ping) bar 420 includes that being positioned at handle 410 lower ends leads
Part I 421 in bar groove 415, it is bent downwardly and is affiliated to along described Part I 421 one end in described shifting
Move the described trip(ping) bar front end in hanging hole 342, be bent downwardly along described Part I 421 other end and be provided with
The described trip(ping) bar end 423 of the first shaft hole, described first shaft hole mates with described first rotating shaft 425,
Being additionally provided with a cam 416 inside described stem guiding trough 415, described cam 416 is pressed down against described Part I
421.A projection 424 it is additionally provided with for limiting between described Part I 421 and described trip(ping) bar end 423
State the sliding scale of the most described Part I of stem guiding trough 415 421.Described trip(ping) bar 420 be positioned at described jumping
Being provided with spring 2 450 between the 3rd rotating shaft 440 below restrictor bar 420, described spring 2 450 gives described tripping operation
Bar 420 is along described first rotating shaft 425 counter-rotational forces, and described connector 430 is movably connected on the described 3rd
Rotating shaft 440 also rotates along the 3rd rotating shaft 440；Described connector 430 includes parallel relative the first side wall 431
And second sidewall 432, and connect described the first side wall 431 and the 3rd sidewall of described second sidewall 432,
Described the first side wall 431 is equipped with described groove, under described 3rd sidewall with described second sidewall 432 upper end
End surfaces is provided with wire connecting ends 438.Described protruding with described the first side wall 431 and described second sidewall 432
Between angle less than 180 °.
The locked groove 421a for locking spring 2 450 upper end 451 is set in described Part I 421.Trip(ping) bar end
The pars intermedia of end 423 forms the hinge ball 423a inserting the first rotating shaft 425, and the lower end of trip(ping) bar end 423 sets
There is the fixed lobe 423b for fixing described spring 1 side.
Projection 424 is positioned at the right side of described Part I 421, and described projection 424 order handle 410 is towards second
The rotating range of the handle 410 on protruding 414, and limit trip position.
Described handle 410, centered by the second rotating shaft 418, by rotating rotary handle 412, makes chopper
Switch between on-position and trip position.Parent 411 is being rotated to trip position by torsion spring 419
Direction is flexibly supported.
With described the first side wall 431 and described second sidewall 432 upper recess match from described parent
411 are provided with guiding between first protruding 413 and described second projection 414 that described connector 430 direction extends
The stem guiding trough 415 that trip(ping) bar 420 rotates, is formed inside the parent 411 of described stem guiding trough 415, has handle 410
When on-position rotates, the cam 416 that the Part I 421 of trip(ping) bar 420 is pressurizeed downwards.
Rotating shaft sticking department 436,437 is formed on the left of the pars intermedia of described the first side wall 431 and the second sidewall 432,
Described rotating shaft sticking department can make connector 430 be supported at the 3rd rotating shaft 440 and along described 3rd rotating shaft
440 rotate.Described rotating shaft sticking department 436,437 possesses upper end and is plugged, the hook-type state that lower end is open, interior
Side is circular, supports the 3rd rotating shaft 440 installed inside it with rotating state.
With reference to Fig. 4, when carrying out the conversion between on-position and trip position, described second sidewall 432 is sliding
The described substrate 110 of dynamic contact, guide rod portion 115 guides described connector 430 to move.
Described 3rd rotating shaft 440 is fixing supports spring 2 450 lower end 452, and described 3rd rotating shaft 440 is by cylinder
The matrix 441 of shape, the axis body 442 laterally passed from described matrix 441, in the side of described matrix 441 to
The lock shaft 444 that the shrinkage pool 443 of sunken inside, the side of shrinkage pool 443 are formed, the lower end 452 of spring 2 450
It is locked in described lock shaft 444 by described shrinkage pool 443.
Described spring 2 450 for guarantee described between angle less than 180 °, described spring 1 upper end 451 and lower end
452 respectively by lock slots 421a and the fixing support of lock shaft 444 of the 3rd rotating shaft 440 of trip(ping) bar 420.This
Time, on on-position and trip position, the first of handle 410 protruding 413 and the second projection 414, connection
The first side wall 431 of part 430 and the second sidewall 432 are to connect handle 410 and the hinge of connector 430
Centered by 413a, 414a, fix with the form of bending.
Described spring 1, flexibly supports trip(ping) bar 420 to the direction towards handle 410, rises
Effect to trip(ping) bar 420 involution to original position driving triggering.The left side of spring 1 is inserted into tripping operation
In the fixed lobe 423b of bar 420, the right side of spring 1 is by the side of the supporting part 112 on substrate 110
Support.
The position that the left and right sides of described spring 1 is fixing is as it has been described above, pass through trip operation trip(ping) bar 420
During rotation, the left side of spring 1 can be stably fixed on trip(ping) bar 420, and the right side of spring 1 is propped up
The side of support part 112 supports, and when resetting after spring 1 compression during starting tripping, sends out on trip(ping) bar 420
Wave recuperability.
Hereinafter, with reference to Fig. 4 to Fig. 8, when overcurrent is connected in explanation stage by stage, the process that trip operation realizes.
During overcurrent, described mobile hanging hole 342 moves to described position two, described jumping from described position one
Restrictor bar front end is deviate from described mobile hanging hole 342, by the restoring force effect of described spring 2 450, described
Trip(ping) bar 420 rotates counterclockwise along described first rotating shaft 425, and described trip(ping) bar 420 drives described handle
410 rotate counterclockwise along described second rotating shaft 418, and described handle 410 lower end projection supports described connection
Part 430 upper recess makes described connector 430 move and rotates along described 3rd rotating shaft 440, described company
Fitting 430 bottom sidewall connects wire connecting ends 438, described wire connecting ends 438 be located in housing
Fixed contact 224 touching connects, and described fixed contact 224 is electrically connected to power supply.With described connector 430
Motion, described wire connecting ends 438 disconnects with contact point, circuit breaker.
Fig. 4 shows the state that normal current passes through, and now wire connecting ends 438 and fixed contact 224 are in
The state connected, armature 340 head 341 rotates towards the direction away from pole piece 314, the locking of trip(ping) bar 420
Pawl 422a keeps the state locked by the mobile hanging hole 342 of armature 340.Now, first of trip(ping) bar 420
The upper end of points 421, in the inside of the stem guiding trough 415 of handle 410, is held against the state of cam 416, handle
410 positions keep fixing.
Fig. 5 shows under normal current is by state, because operator operate rotary handle 412 and cause jumping
The situation of lock, when trip(ping) bar 420 is locked by armature 340, if operator will shake hands 410
Rotate counterclockwise, hinge the portion 413a, 414a of 410 lower ends of shaking hands and connector 430 upper end 434,435 phase
Even, the first protruding 413 and second projection 414 of handle 410, the first side wall 431 of connector 430 and the
Till two sidewalls 432 are formed before straight line, wire connecting ends 438 is in, with fixed contact 224, the shape connected
State, but when handle 410 continuation rotates, and under the tension force of spring 2 450, connector 430 can lift upward
Mobile, wire connecting ends 438 and fixed contact 224 separate, and form tripped condition.
Fig. 6 shows when abnormal current occurs, due to the action of trip portion 300, trip(ping) bar 420 and armature
The latch-release of 340 situation about rotating counterclockwise；Fig. 7 shows when Fig. 6, by bullet
The process that the recuperability of spring 2 450, connector 430 and trip(ping) bar 420 turn clockwise；Fig. 8 shows Fig. 7
State under, rotary handle 412 links with trip(ping) bar 420, handle 410 rotation formed tripped condition situation.
When connecting overcurrent, if the head 431 of armature 340 moves to pole piece 413 direction, by armature 340
The trip(ping) bar 420 of mobile hanging hole 342 locking because the tension force of spring 2 450, in the first rotating shaft 425 being
The heart rotates counterclockwise, compression spring 1, simultaneously on on-position, and the trip(ping) bar of constraint handle 410
The restraining forces of 420 releases, and therefore handle 410 at the elastic force of torsion spring 419 and adds answering of the spring 1 of gesture
Under former power, rotate to trip position (counterclockwise).
Described handle 410 drives described connector 430 to rotate, and pulls upward under spring 2 450 acts on,
Wire connecting ends 438 is caused to separate with fixed contact 224, now a left side for the second sidewall 432 of connector 430
On side contacts substrate 110 formed guide rod portion 115 and slide.
Described trip(ping) bar 420 is as it is shown in fig. 7, the upper end of Part I 421 rotates to stem guiding trough 415 is locked
Position stop.
After trip operation occurs, on certain time, breaking coil 320, no longer produce electromotive force, described
Trip portion 300 can back within on-position, as shown in Figure 5.
In sum, the present invention is when connecting overcurrent, under the mechanism of opening/closing portion 400, and trip operation
Can quickly realize, homing action is the most accurately carried out, and improves the reliability of product.
Although embodiment of the present invention are disclosed as above, but it is not restricted to description and embodiment party
Listed utilization in formula, it can be applied to various applicable the field of the invention completely, for being familiar with ability
For the personnel in territory, be easily achieved other amendment, therefore without departing substantially from claim and etc. homotype
Enclosing under limited general concept, the present invention is not limited to specific details and shown here as the figure with description
Example.
Claims (9)
1. a miniature circuit breaker, it is characterised in that include,
Trip portion (300), is wound with the oil damper of coil (320) and by described coil (320) including outer wall
The armature (340) and the front end activity that set mobile hanging hole (342) in the impact of middle overcurrent are overlapped in described movement
Trip(ping) bar (420) in hanging hole (342), described trip(ping) bar (420) is fixed on substrate by the first rotating shaft (425)
(110), on, it is described that the connection of described trip(ping) bar end (423) has spring one (460), described spring one (460) to give
Trip(ping) bar (420) is along described first rotating shaft (425) Clockwise rotational force, and described armature (340) is affected by overcurrent
Position two is moved to by position one；
Opening/closing portion (400), past including carrying out between position three and position four centered by the second rotating shaft (418)
The multiple handle (410) rotated and the connector (430) being flexibly connected with described handle (410) lower end projection, described
Handle (410) lower end is additionally provided with stem guiding trough (415), and described trip(ping) bar (420) is worn in described stem guiding trough (415)
Cross, described trip(ping) bar (420) and be positioned at described trip(ping) bar (420) lower section the 3rd rotating shaft (440) between be provided with
Spring two (450), described spring two (450) gives described trip(ping) bar (420) along described first rotating shaft (425) inverse time
Pin rotatory force, described connector (430) is movably connected on described 3rd rotating shaft (440) and along the 3rd rotating shaft
(440) rotate；
Wherein, during overcurrent, described mobile hanging hole (342) moves to described position two from described position one,
Described trip(ping) bar front end is deviate from described mobile hanging hole (342), by the reply masterpiece of described spring two (450)
With, described trip(ping) bar (420) rotates counterclockwise along described first rotating shaft (425), described trip(ping) bar (420)
Described handle (410) is driven to rotate counterclockwise along described second rotating shaft (418), described handle (410) lower end
Projection is supported described connector (430) upper recess and is made described connector (430) motion and along described 3rd turn
Axle (440) rotates, and described connector (430) bottom sidewall connects wire connecting ends (438), with
Described connector (430) moves, and described wire connecting ends (438) disconnects with contact point, circuit breaker.
2. miniature circuit breaker as claimed in claim 1, it is characterised in that described coil (320) one end
Connecing load wire, a termination output lead, the described output lead other end is connected to described wire connecting ends
(438)。
3. miniature circuit breaker as claimed in claim 1, it is characterised in that described trip(ping) bar (420) includes
It is positioned at the Part I (421) of described stem guiding trough (415), is bent downwardly along described Part I (421) one end
And be affiliated to the described trip(ping) bar front end in described mobile hanging hole (342), along described Part I (421) another
End is bent downwardly and is provided with the described trip(ping) bar end (423) of the first shaft hole, described first shaft hole and institute
State the first rotating shaft (425) coupling.
4. miniature circuit breaker as claimed in claim 3, it is characterised in that described stem guiding trough (415) inner side
Being additionally provided with a cam (416), described cam (416) is pressed down against described Part I (421).
5. miniature circuit breaker as claimed in claim 4, it is characterised in that described handle (410) includes set
The rotation be located at the parent (411) on described second rotating shaft (418), extending from described parent (411) outside housing
Handle (412) and the projection extended to described connector (430) direction from described parent (411), described convex
Rise and match with described connector (430) upper recess.
6. miniature circuit breaker as claimed in claim 5, it is characterised in that described Part I (421)
To be used for limiting described stem guiding trough (415) relative with being additionally provided with a projection (424) between described trip(ping) bar end (423)
The sliding scale of described Part I (421).
7. miniature circuit breaker as claimed in claim 5, it is characterised in that described connector (430) includes
Parallel relative the first side wall (431) and the second sidewall (432), and connect described the first side wall (431) and institute
Stating the 3rd sidewall of the second sidewall (432), described the first side wall (431) is equal with described second sidewall (432) upper end
Being provided with described groove, described 3rd side wall lower ends surface is provided with described wire connecting ends (438).
8. miniature circuit breaker as claimed in claim 7, it is characterised in that described projection and described first
Between sidewall (431) and described second sidewall (432), angle is less than 180 °.
9. miniature circuit breaker as claimed in claim 7, it is characterised in that described wire connecting ends (438)
Being connected with fixed contact (224) touching being located in housing, described fixed contact (224) is electrically connected to
Power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410512817.7A CN104377092B (en) | 2014-09-29 | 2014-09-29 | A kind of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410512817.7A CN104377092B (en) | 2014-09-29 | 2014-09-29 | A kind of miniature circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104377092A CN104377092A (en) | 2015-02-25 |
| CN104377092B true CN104377092B (en) | 2016-08-31 |
Family
ID=52555939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410512817.7A Expired - Fee Related CN104377092B (en) | 2014-09-29 | 2014-09-29 | A kind of miniature circuit breaker |
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| CN (1) | CN104377092B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3785662B2 (en) * | 1995-12-07 | 2006-06-14 | 富士電機機器制御株式会社 | Open / close operation mechanism of circuit breaker |
| US20070085639A1 (en) * | 2005-10-19 | 2007-04-19 | Eaton Corporation | Circuit breaker intermediate latch stop |
| CN201838528U (en) * | 2010-09-16 | 2011-05-18 | 方华朋 | Minitype circuit breaker |
| CN204215986U (en) * | 2014-09-29 | 2015-03-18 | 江苏普华力拓电器股份有限公司 | A kind of miniature circuit breaker |
-
2014
- 2014-09-29 CN CN201410512817.7A patent/CN104377092B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104377092A (en) | 2015-02-25 |
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Granted publication date: 20160831 Termination date: 20170929 |