CN209357690U - A kind of small type circuit breaker operating mechanism and miniature circuit breaker - Google Patents
A kind of small type circuit breaker operating mechanism and miniature circuit breaker Download PDFInfo
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- CN209357690U CN209357690U CN201822177141.7U CN201822177141U CN209357690U CN 209357690 U CN209357690 U CN 209357690U CN 201822177141 U CN201822177141 U CN 201822177141U CN 209357690 U CN209357690 U CN 209357690U
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- circuit breaker
- operation handle
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Abstract
The utility model discloses a kind of small type circuit breaker operating mechanism and miniature circuit breaker, operating mechanism includes operation handle, lock, and operation handle, lock are rotationally connected in circuit breaker housing respectively；Further include: first connecting rod, which is rotationally connected with circuit breaker housing, and the shaft of the first connecting rod is coaxial with the shaft of lock or is located on same axis；The moving contact is arranged on first connecting rod；Second connecting rod；The second connecting rod attended operation handle, and linkage structure is combined with lock, first connecting rod, when rotating operation handle to closing position, the second connecting rod can drive the lock and first connecting rod rotation to realize and close a floodgate, and when lock tripping, the limit to the moving contact and first connecting rod is released, moving contact and first connecting rod is acted on by the first elastic component and resets.The utility model constitutes four-bar mechanism using the operation handle, lock, first connecting rod, second connecting rod, and required component is few, and the rotational angle of operation handle is small.
Description
Technical field
The utility model relates to a kind of operating mechanisms, more particularly to a kind of small type circuit breaker operating mechanism and small-sized open circuit
Device.
Background technique
Chinese utility model patent CN207558723U discloses a kind of small type circuit breaker operating mechanism, including mechanism rack,
Handle, first connecting rod, second connecting rod, third connecting rod, tension spring, moving contact, rotation is provided with tripping, machine on the third axis of mechanism rack
It is provided with the lock being interlocked with tripping on 4th axis of framework, reset is provided between the lock and the side plate of mechanism rack
Tension spring, the first connecting rod are connect by U-shaped bar with second connecting rod, correspond in the tripping and be provided with arc at second connecting rod
One end of shape pilot hole, the U-shaped bar is set in arcuate guide hole, and can with first connecting rod can in arcuate guide hole it is past
Multiple sliding, the other end of the U-shaped bar are connected on handle, and rotation is provided on the third axis matches with U-shaped bar
Rotating plate, torsional spring is provided between rotating plate and the side plate of mechanism rack, the arc groove to fasten with U-shaped bar is provided on rotating plate.
Obviously, component needed for the operating mechanism of above-mentioned miniature circuit breaker is more, and assemble it is complicated, cause overall cost compared with
It is high.
Utility model content
The utility model provides a kind of small type circuit breaker operating mechanism and miniature circuit breaker, and which overcome the prior arts
Shortcoming present in small type circuit breaker operating mechanism.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of small type circuit breaker operating mechanism, packet
It includes the operation handle for realizing circuit-breaker switching on-off, for making the moving contact of breaker be held in the lock of "on" position, grasps
Make handle, lock is rotationally connected in circuit breaker housing respectively；It is characterized by also including:
First connecting rod, the first connecting rod are rotationally connected with circuit breaker housing, and turn of the shaft of the first connecting rod and lock
Axis is coaxial or is located on same axis；The moving contact is arranged on first connecting rod；
Second connecting rod；
The second connecting rod attended operation handle, and with lock, first connecting rod be combined with linkage structure, make operation handle to
When the rotation of closing position, which can drive the lock and first connecting rod rotation to realize and close a floodgate, and when lock tripping,
The limit to the moving contact and first connecting rod is released, moving contact and first connecting rod is acted on by the first elastic component and resets.
Further, the linkage structure includes the sliding slot being arranged on the first connecting rod, is arranged on the second connecting rod
The first protruding shaft and the lock on the first service portion for being arranged, the first protruding shaft is slidably connected in sliding slot, and the first service portion has will
First protruding shaft push against in sliding slot inner wall contact state and be detached from the discrete state of first protruding shaft, in contact state, second
Connecting rod can drive first connecting rod and lock rotation, and in discrete state, lock releases the limit to the moving contact and first connecting rod.
Further, it is supported between the lock and circuit breaker housing and is equipped with the second elastic component, the operation handle is gone to point
When lock position, the lock is acted on by the second elastic component, its first service portion is made to be reset to the state for resisting first protruding shaft.
Further, it is supported between the operation handle and circuit breaker housing and is equipped with third elastic component；The lock is equipped with
Second service portion, when operation handle is acted on by third elastic component and rotates first angle to sub-gate position, the lock is by the second bullet
Property part effect, make its second service portion will first protruding shaft abutting in the sliding slot inner wall, with limit operation handle continue to
Sub-gate position rotation.
Further, further include stopper section, be arranged in circuit breaker housing, in the lock with first connecting rod rotation the
When two angles, which resists second elastic component to the site of action of the lock, makes second elastic component release lock
Button.
Further, first elastic component and the second elastic component are integrally connected, and constitute torsion spring, two spiral shells of the torsion spring
Rotation portion covers in the shaft of lock, and a stabilizer blade of the torsion spring is overlapped in lock, and another stabilizer blade is overlapped in circuit breaker housing, this pair
Interconnecting piece between two spires of torsional spring catches on the moving contact.
Further, the sliding slot includes upper slot section, lower slot section and bracket groove section, and upper slot section bottom end passes through with lower slot section top
Bracket groove section is connected；When first protruding shaft of the second connecting rod slides to bracket groove section by upper slot section, with the operation handle after
Continue and rotated to closing position, the second connecting rod drives first connecting rod and lock rotation.
Further, the sliding slot includes upper slot section and lower slot section, and upper slot section bottom end and lower slot section bottom end pass through a bracket groove
Duan Jinhang linking；When first protruding shaft of the second connecting rod slides to bracket groove section by upper slot section, with the operation handle continue to
Closing position rotation, the second connecting rod drive first connecting rod and lock rotation；The operation handle by third elastic component act on to
When sub-gate position rotates first angle, the second service portion of the lock pushes against first protruding shaft in the lower slot section
Wall.
Further, the operation handle is equipped with an axis hole, and the second connecting rod is equipped with the second protruding shaft, the second protruding shaft
It is actively plugged in the axis hole.
Further, the moving contact is hinged on the first connecting rod, and the first connecting rod is equipped with tolerant slot, institute
Moving contact is stated equipped with convex block, which is matched in the tolerant slot, and has between the cell wall of tolerant slot at least side
Gap.
The utility model separately provides a kind of miniature circuit breaker, including shell, moving contact, static contact, operating mechanism and tripping
Mechanism, it is characterised in that: the operating mechanism is a kind of above-mentioned small type circuit breaker operating mechanism described in the utility model.
The utility model has the following beneficial effects:
1, the utility model constitutes four-bar mechanism, band using the operation handle, lock, first connecting rod, second connecting rod
The moving contact and static contact divide-shut brake of dynamic breaker, compared with the small type circuit breaker operating mechanism of the prior art, not only needed for portion
Part largely reduces, assemble it is simpler, cost is lower, also make operation handle rotational angle be only existing product half, from
And reduce the inner space of breaker further, so that breaker is further realized miniaturization.
2, cooperated between the second connecting rod and first connecting rod using sliding slot and the first protruding shaft, breaker can be made because of failure
When caused separating brake, operation handle will not drive first connecting rod and moving contact to transport during turning to sub-gate position by second connecting rod
It is dynamic, that is, it will not interfere with the state of second connecting rod and moving contact.
3, on the lock the first service portion setting, realize the design of simple structure, when making to close a floodgate, lock can be with the
One connecting rod moves synchronously, and the limit to first connecting rod and moving contact can be released after threading off.
3, on the lock the second service portion setting, operation handle can be made when breaker causes separating brake because of failure
It is maintained on a position between sub-gate position and closing position, so that personnel be facilitated to judge breaker by the position of operation handle
It breaks down, and quickly carries out emergency processing.
4, the setting of the stopper section can make the tripping mechanism of breaker when pushing lock tripping without overcoming the second bullet
The elastic force of property part also allows tripping mechanism be designed simpler, more energy efficient to not only make trip action faster.
5, the sliding slot includes upper slot section and lower slot section, and upper slot section bottom end is held in the mouth with lower slot section bottom end by a bracket groove section
It connects；The operation handle is rotated to closing position, and when the first protruding shaft of the second connecting rod slides to bracket groove section by upper slot section, and second
Connecting rod just drives first connecting rod and lock rotation, so as to so that operation handle has one section of idle stroke with respect to first connecting rod, thus
It is convenient to install the abnormal protection device manipulated by operation handle additional to breaker, that is, breaker starts breaker by operation handle
Electric leakage and/or electric arc fault protection function self-test when, the movement of operation handle will not influence the gate-dividing state of breaker original place.
6, moving contact is hinged on the first connecting rod, and the two is further cooperated by the tolerant slot and convex block, neither
Influencing first connecting rod drives moving contact movement and moving contact that first connecting rod is driven to reset, and first connecting rod can be made with respect to moving contact
Have a Duan Chaocheng, with switch on of moving contact in place when, make moving contact and static contact reliable contacts, and prevent first connecting rod because continue
Rotation and hardness acts on moving contact, cause component to wear.
The utility model is described in further detail with reference to the accompanying drawings and embodiments；But one kind of the utility model is small
Type circuit breaker operation mechanism and miniature circuit breaker are not limited to the embodiment.
Detailed description of the invention
Fig. 1 is the decomposition diagram of the utility model；
Fig. 2 is the structural schematic diagram one that the utility model is in sub-gate position in operation handle；
Fig. 3 is the structural schematic diagram two that the utility model is in sub-gate position in operation handle；
Fig. 4 is that the operation handle of the utility model rotates the structural schematic diagram after certain idle stroke；
Fig. 5 is the structural schematic diagram that the utility model is in closing position in operation handle；
Fig. 6 is that the operating mechanism of the utility model is in the structural schematic diagram one of closing position in operation handle；
Fig. 7 is that the operating mechanism of the utility model is in the structural schematic diagram two of closing position in operation handle；
Fig. 8 is the structural schematic diagram that the utility model is in fault bit in operation handle；
Fig. 9 is that the operating mechanism of the utility model is in the structural schematic diagram of fault bit in operation handle.
Specific embodiment
Embodiment, referring to Figure 1 shown in-Fig. 9, a kind of small type circuit breaker operating mechanism of the utility model, including be used for
Realize the operation handle 1 of circuit-breaker switching on-off, for making the moving contact 5 of breaker be held in the lock 3 of "on" position, manipulator
Handle 1, lock 3 are rotationally connected with respectively in circuit breaker housing 10.The operating mechanism of the utility model further include:
First connecting rod 4, which is rotationally connected with circuit breaker housing 10, and the first connecting rod 4 and lock 3 share
The same shaft 101；The moving contact 5 is arranged on first connecting rod 4；
Second connecting rod 2；
The 2 attended operation handle 1 of second connecting rod, and it is combined with linkage structure with lock 3, first connecting rod 4, make manipulator
When handle 1 is rotated to closing position, the second connecting rod 2 can drive lock 3 and first connecting rod 4 to rotate, and realize and close a floodgate, and the lock
When 3 tripping of button, the limit to the moving contact 5 and first connecting rod 4 is released, makes moving contact 5 and second connecting rod 2 by the first elastic component
Effect resets.
In the present embodiment, the linkage structure includes the sliding slot 41 being arranged on the first connecting rod 4, the second connecting rod 2
The first service portion 31 being arranged in first protruding shaft 21 of upper setting and the lock 3, the first protruding shaft 21 are slidably connected in sliding slot 41；The
One service portion 31 has point that the first protruding shaft 21 is pushed against to contact state and disengaging first protruding shaft 21 in 41 inner wall of sliding slot
From state, in contact state, second connecting rod 2 can drive 3 rotation of first connecting rod 4 and lock, in discrete state, 3 releasing pair of lock
The limit of the moving contact 5 and first connecting rod 4.
In the present embodiment, is supported between the lock 3 and circuit breaker housing 10 and be equipped with the second elastic component, the operation handle 1
When going to sub-gate position, the lock 3 is acted on by the second elastic component, is reset to its first service portion 31 and is resisted first protruding shaft
21 state.
In the present embodiment, is supported between the operation handle 1 and circuit breaker housing 10 and be equipped with third elastic component 13；The lock
3 be equipped with the second service portion 32, operation handle 1 by third elastic component 13 act on to sub-gate position rotation first angle (this first
Angle is less than the rotational angle of 1 divide-shut brake of operation handle) when, the lock 3 is acted on by the second elastic component, makes its second service portion
32 push against first protruding shaft 21 in 41 inner wall of sliding slot, continue to rotate to sub-gate position to limit operation handle 1.In this way, operation
Handle 1 is to facilitate personnel to pass through the position of operation handle 1 on the position for a setting being maintained between sub-gate position and closing position
Judge that breaker breaks down, and quickly carries out emergency processing.Therefore, the position of the setting can be defined as fault bit.It is described
First angle can preferably be set as the half of the rotational angle of 1 divide-shut brake of operation handle, and therefore, operation handle 1 turns to interposition
When, that is, correspond to fault bit.
In the present embodiment, the operating mechanism of the utility model further includes rod-shaped stopper section 102, is arranged in circuit breaker housing
On 10, in the lock 3, with the rotation of first connecting rod 4 second angle, (second angle latches 3 with first connecting rod 4 much smaller than described
Turn to rotational angle when bottom) when, which resists second elastic component to the effect end of the lock 3, makes this
Second elastic component releasable catch 3.In this way, can make the tripping mechanism of breaker when pushing 3 tripping of lock without overcoming the second bullet
The elastic force of property part also allows tripping mechanism be designed simpler, more energy efficient to not only make trip action faster.
In the present embodiment, first elastic component and the second elastic component are integrally connected, and constitute torsion spring 6, the torsion spring 6
For two 61 sets of spires in the shaft 101 of lock 3, a stabilizer blade 62 of the torsion spring 6 is overlapped in lock 3, and another stabilizer blade 63 overlaps
In circuit breaker housing 10 (specific, which is overlapped in the stopper section 102), two spires 61 of the torsion spring 6 it
Between interconnecting piece 64 catch on the moving contact 5.It is described to stop when the lock 3 turns to the second angle with first connecting rod 4
Stopper 102 is the stabilizer blade 62 for resisting the torsion spring 6.The lock 3 is equipped with engraved structure, wears for the stopper section 102
It crosses, makes 102 one end of stopper section that can resist a stabilizer blade 62 of torsion spring, the other end resists another stabilizer blade 63 of torsion spring.
In the present embodiment, first service portion 31 and second service portion 32 are to be located at 3 sides of the lock
Bulge-structure, but not limited to this, first service portion 31 and the second service portion 32 are positioned at the same side of lock 3.
In the present embodiment, the sliding slot 41 includes upper slot section 411, bracket groove section 412, lower slot section 413, upper 411 bottom end of slot section
It is connected with lower 413 top of slot section by bracket groove section 412.First protruding shaft 21 of the second connecting rod is slided to by upper slot section 411
When bracket groove section 412, as operation handle 1 is continued to rotate to closing position, second connecting rod 2 drives 3 rotation of first connecting rod 4 and lock.
In this way, operation handle 1 can be made to have one section of idle stroke with respect to first connecting rod 4, so that convenient install by operation handle 1 breaker additional
The abnormal protection device of manipulation, that is, breaker starts electric leakage and/or the electric arc fault protection function of breaker by operation handle 1
When energy self-test, the movement of operation handle 1 will not influence the gate-dividing state of breaker original place；The only electric leakage of breaker and/or electricity
Arc failure protection function is normal, and personnel can just continue to rotate operation handle 1 and close a floodgate.The operation handle is by the second elastic component
Act on when rotating first angle to sub-gate position, the second service portion of the lock will first protruding shaft abutting in the lower slot section
413 inner wall.The sliding slot 4 is obliquely installed, and the tilt angle of its bracket groove section 412 is less than the upper slot section 411 and lower slot section
413 tilt angle.In this way, being locked when the first protruding shaft 21 of the second connecting rod slides to bracket groove section 412 by upper slot section 411
The contact effect of first service portion 31 of button, second connecting rod 2 can drive 3 rotation of first connecting rod 4 and lock.
In the present embodiment, the operation handle 1 is equipped with an axis hole 121, and the second connecting rod 2 is equipped with the second protruding shaft
22, the second protruding shaft 22 is actively plugged in axis hole 121.
In the present embodiment, the moving contact 5 is hinged on the first connecting rod 4, and the first connecting rod 4 is equipped with tolerant
Slot 42, the moving contact 5 are equipped with convex block 51, which is matched in the tolerant slot 42, and with tolerant slot 42 at least one
There is gap between the cell wall of side.The movement of moving contact 5 and moving contact 5 is driven to drive first to connect in this way, neither influencing first connecting rod 4
Bar 4 resets, and first connecting rod 4 can be made to have a Duan Chaocheng with respect to moving contact 5, to make moving contact in 5 in-place closing of moving contact
It with static contact reliable contacts, and prevents first connecting rod 4 hardness acts on moving contact 5 due to continuing to rotate, component is caused to grind
Damage.
In the present embodiment, the operation handle 1 includes being exposed at outside circuit breaker housing 10 and is in the operating block 11 of press-key structure
With bull stick 12, the medium position of 12 top attended operation block 11 of bull stick, which is rotationally connected in circuit breaker housing 10, and
Together with operating mechanism other components hides in circuit breaker housing 10.The axis hole 121 is arranged on bull stick 12, and described the
Three elastic components 13 are specially torsional spring, and the spire of the torsional spring is set in the shaft 103 of bull stick 12, the two stabilizer blades difference of the torsional spring
Contact is in the operating block 11 of circuit breaker housing 10 and operation handle 1.When operation, wherein one end of pressing operation block 11 can be pushed
Whole operation handle 1 rotates, and realizes that breaker closing, 11 other end of pressing operation block can push whole operation handle 1 reversely to turn
It is dynamic, it realizes breaker open operation or operation handle 1 is made to return to sub-gate position.The 11 top surface both ends of operating block be respectively equipped with " ON ",
" OFF " mark, respectively corresponds closing position and the sub-gate position of operation handle 1.Since operation handle 1 also has the fault bit, because
This, can be arranged failure bit identification in the middle position of 11 top surface of operating block.
In the present embodiment, the u-shaped structure of the second connecting rod 2, and the both ends of the U-shaped structure respectively correspond it is described
First protruding shaft 21 and the second protruding shaft 22.
A kind of small type circuit breaker operating mechanism of the utility model, it is gate-dividing state, failure shape respectively that there are three types of states for tool
State, "on" position.Gate-dividing state is as shown in Figure 2 and Figure 3, at this point, the moving contact 5 of breaker and static contact 7 separate, operation handle 1
In sub-gate position, the first protruding shaft 21 of second connecting rod 2 is located at upper 411 top of slot section, and the first service portion 31 of 3 sides of lock resists
First protruding shaft 21 of second connecting rod 2, but not limit 21 slide downward of the first protruding shaft.
When combined floodgate, one end where " ON " of the operating block 11 on pressing operation handle 1 overcomes whole operation handle 1
The elastic force of third elastic component 13 is rotated to closing position, during rotation, the upper slot of the first protruding shaft 21 of second connecting rod from sliding slot
Section 411 is to the bracket groove section 412 for being snapped down to sliding slot, and the first service portion 31 latched on 3 supports the first protruding shaft 21 of second connecting rod 2
Tightly in the inner wall of the bracket groove section 412, as shown in Figure 4.At this point, operation handle 1 just starts as operation handle 1 continues to rotate
3 rotation of first connecting rod 4 and lock is driven by second connecting rod 2.When lock 3 turns to the position of second angle, torsion spring 6
One stabilizer blade 62 by the stopper section 102 backstop and releasable catch 3, at this point, second connecting rod 2 rotates the friction that generates to lock 3
Power makes lock 3 have the power of holding always with first connecting rod 4 and second connecting rod 2, and therefore, lock 3 can continue to first connecting rod 4
Rotation until moving contact 5 closes a floodgate, and makes moving contact 5 be held in "on" position.As first connecting rod 4 rotates, on first connecting rod 4
Moving contact 5 also and then to 7 direction of static contact rotate, until both contact, as shown in Figure 5-Figure 7.1 turn of operation handle
When to closing position, the frictional force effect of 3 pairs of second connecting rods 2 is latched, lock 3 is made to hold operation handle 1 by second connecting rod 2, because
This, operation handle 1 is able to maintain on closing position, is inverted without being acted on by third elastic component 13.
When the tripping mechanism of breaker acts, and pushes 3 tripping of lock, lock 3 is rotated backward, and makes its first service portion 31
Be detached from the first protruding shaft 21 of second connecting rod 2, so that lock 3 releases limit to moving contact 5 and first connecting rod 4, first connecting rod 4 and
Moving contact 5 rotates backward under the action of torsion spring 6, realizes separating brake.Meanwhile operation handle 1 is by the elastic force of third elastic component 13
It acts on and being rotated to sub-gate position, and as first connecting rod 4 rotates, the first protruding shaft 21 of second connecting rod 2 slides into the sliding slot of first connecting rod 4
Lower slot section 413.Also, lock 3 is acted on by torsion spring 6, is rotated along the direction contrary with threading off, is made its second service portion
32 are against the first protruding shaft 21 of second connecting rod 2 lower 413 inner wall of slot section of sliding slot, as shown in Figure 8, Figure 9, to limit manipulator
Handle 1 continues to rotate.At this point, operation handle 1 just rotates middle position, i.e. fault bit, as shown in Figure 8.Personnel can pass through operation
Location judges that breaker breaks down to handle 1 at this time, and quickly carries out emergency processing.
When operation handle 1 is in fault bit, where " OFF " of the personnel by the operating block 11 on pressing operation handle 1
One end makes operation handle 1 go to sub-gate position, in order to subsequent combined floodgate.During this, manpower overcomes the work of 6 pairs of torsion spring locks 3
With, separate the second service portion 32 of lock 3 with the first protruding shaft 21 of second connecting rod 2, second connecting rod 2 is moved with operation handle 1,
Its first protruding shaft 21 is set to return to 411 top of upper slot section of the sliding slot.When operation handle 1 goes to sub-gate position, lock 3 is by double torsions
Spring 6 acts on, and so that its first service portion 31 is reset to the state for resisting the first protruding shaft 21 of second connecting rod 2, in order to subsequent conjunction
Lock.
When breaker is in "on" position, where " OFF " of the personnel by the operating block 11 on pressing operation handle 1
One end can make breaker realize separating brake.
The utility model constitutes four-bar mechanism using the operation handle 1, lock 3, first connecting rod 4, second connecting rod 2,
The moving contact 5 and 7 divide-shut brake of static contact for driving breaker, compared with the small type circuit breaker operating mechanism of the prior art, not only institute
Component is needed largely to reduce, assembly is simpler, and cost is lower, and also making the rotational angle of operation handle 1 is only the one of existing product
Half, so that the inner space of breaker be allow further to reduce, breaker is made to further realize miniaturization.
Referring to Figure 1 shown in-Fig. 9, a kind of miniature circuit breaker of the utility model, including shell 10, moving contact 5, stationary contact
First 7, operating mechanism and tripping mechanism, the operating mechanism are a kind of above-mentioned miniature circuit breaker operation machine described in the utility model
Structure.The tripping mechanism includes thermal tripping mechanism 8 and magnetic tripping mechanism 9, but not limited to this.
In the present embodiment, thermal tripping mechanism 8 includes bimetallic element 81, locating piece 82, and the setting of bimetallic element 81 is fixed
On the part 82 of position, which is fixed on the shell 10 by 83 attaching nut of bolt, and by adjusting 83 position of bolt
It can change the gap of bimetallic element 81 and the lock 3.The bimetallic element 81 is fixed on shell by locating piece 82
It on 10, can be positioned directly on shell 10 to avoid bimetallic element 81, therefore, the water suction deformation of shell 10 will not be transmitted directly
To bimetallic element 81, keep the delay performance of breaker more stable.
In the present embodiment, the magnetic tripping mechanism 9 includes dynamic iron core, static iron core, push rod, iron core spring, coil, coil
Frame, coil are erected on the shell 10, and coil is wound on bobbin, and static iron core, dynamic iron core are coaxially arranged in bobbin, are pushed away
Bar passes through static iron core, and one end connects dynamic iron core, and the other end is matched with outside static iron core；Iron core spring pocket supports on push rod
It is located between static iron core and dynamic iron core.
When breaker overload, bimetallic element 81, which is heated, to be made to the curving where lock 3 to push lock 3
3 tripping of lock, breaker open operation.
When overload circuit or short circuit current pass through breaker, dynamic iron core drives pushrod movement, and push rod is made to push lock 3 de-
Button, breaker open operation.
The divide-shut brake process of a kind of miniature circuit breaker of the utility model, operating mechanism is as described above, therefore, no longer
Further repeat.
Above-described embodiment only is used to further illustrate a kind of small type circuit breaker operating mechanism of the utility model and small-sized disconnected
Road device, but the utility model is not limited to embodiment, and all foundation the technical essence of the utility model are to above embodiments institute
Any simple modification, equivalent change and modification of work, each fall in the protection scope of technical solutions of the utility model.
Claims (11)
1. small type circuit breaker operating mechanism, including for realizing circuit-breaker switching on-off operation handle, for making the dynamic of breaker
Contact is held in the lock of "on" position, and operation handle, lock are rotationally connected in circuit breaker housing respectively；It is characterized by:
Further include:
First connecting rod, which is rotationally connected with circuit breaker housing, and the shaft of the first connecting rod and the shaft of lock are total
Axis is located on same axis；The moving contact is arranged on first connecting rod；
Second connecting rod；
The second connecting rod attended operation handle, and it is combined with linkage structure with lock, first connecting rod, make operation handle to combined floodgate
When position rotates, which can drive the lock and first connecting rod rotation to realize and close a floodgate, and when lock tripping, release
Limit to the moving contact and first connecting rod acts on moving contact and first connecting rod by the first elastic component and resets.
2. small type circuit breaker operating mechanism according to claim 1, it is characterised in that: the linkage structure includes described
The first protruding shaft being arranged on the sliding slot that is arranged on one connecting rod, the second connecting rod and the first service portion being arranged on the lock,
First protruding shaft is slidably connected in sliding slot, and the first service portion has contact state and the disengaging institute pushed against the first protruding shaft in sliding slot inner wall
The discrete state for stating the first protruding shaft, in contact state, second connecting rod can drive first connecting rod and lock rotation, in discrete state,
Lock releases the limit to the moving contact and first connecting rod.
3. small type circuit breaker operating mechanism according to claim 2, it is characterised in that: it is described lock with circuit breaker housing it
Between support be equipped with the second elastic component, when the operation handle goes to sub-gate position, it is described lock by the second elastic component act on, make its first
Service portion is reset to the state for resisting first protruding shaft.
4. small type circuit breaker operating mechanism according to claim 3, it is characterised in that: the operation handle and breaker shell
It is supported between body and is equipped with third elastic component；The lock be equipped with the second service portion, operation handle by third elastic component act on to
When sub-gate position rotates first angle, the lock is acted on by the second elastic component, supports its second service portion by first protruding shaft
Tightly in the sliding slot inner wall, continue to rotate to sub-gate position to limit operation handle.
5. small type circuit breaker operating mechanism according to claim 3, it is characterised in that: further include stopper section, setting exists
In circuit breaker housing, when the lock rotates second angle with first connecting rod, which resists second elastic component pair
The site of action of the lock makes the second elastic component releasable catch.
6. small type circuit breaker operating mechanism according to claim 3, it is characterised in that: first elastic component and the second bullet
Property part be integrally connected, constitute torsion spring, two spires of the torsion spring cover in the shaft of lock, and a stabilizer blade of the torsion spring is taken
It is connected to lock, another stabilizer blade is overlapped in circuit breaker housing, and the interconnecting piece between two spires of the torsion spring catches on the dynamic touching
Head.
7. small type circuit breaker operating mechanism according to claim 2 or 3, it is characterised in that: the sliding slot includes upper slot section
With lower slot section, upper slot section bottom end is connected with lower slot section bottom end by a bracket groove section；First protruding shaft of the second connecting rod by
When upper slot section slides to bracket groove section, as the operation handle continues to rotate to closing position, the second connecting rod drives first connecting rod
And lock rotation.
8. small type circuit breaker operating mechanism according to claim 4, it is characterised in that: the sliding slot include upper slot section, under
Slot section and bracket groove section, upper slot section bottom end are connected with lower slot section top by bracket groove section；, the first protruding shaft of the second connecting rod
When sliding to bracket groove section by upper slot section, as the operation handle continues to rotate to closing position, the second connecting rod drives first to connect
Bar and lock rotation；The operation handle is acted on by third elastic component when rotating first angle to sub-gate position, and the of the lock
Two service portions push against first protruding shaft in the inner wall of the lower slot section.
9. small type circuit breaker operating mechanism according to claim 1, it is characterised in that: the operation handle is equipped with an axis
Hole, the second connecting rod are equipped with the second protruding shaft, and the second protruding shaft is actively plugged in the axis hole.
10. small type circuit breaker operating mechanism according to claim 1, it is characterised in that: the moving contact is hinged on described
On first connecting rod, and the first connecting rod is equipped with tolerant slot, and the moving contact is equipped with convex block, which is matched with the appearance
It allows in slot, and there is gap between the cell wall of tolerant slot at least side.
11. miniature circuit breaker, including shell, moving contact, static contact, operating mechanism and tripping mechanism, it is characterised in that: the behaviour
Making mechanism is small type circuit breaker operating mechanism of any of claims 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822177141.7U CN209357690U (en) | 2018-12-24 | 2018-12-24 | A kind of small type circuit breaker operating mechanism and miniature circuit breaker |
Applications Claiming Priority (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109659206A (en) * | 2018-12-24 | 2019-04-19 | 厦门宏发开关设备有限公司 | A kind of small type circuit breaker operating mechanism and miniature circuit breaker |
| CN111243911A (en) * | 2020-01-15 | 2020-06-05 | 美高电气科技有限公司 | Novel mechanical mechanism circuit breaker |
| CN113380590A (en) * | 2021-07-01 | 2021-09-10 | 上海长城开关厂有限公司 | Small shell frame leakage reclosing switch |
-
2018
- 2018-12-24 CN CN201822177141.7U patent/CN209357690U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109659206A (en) * | 2018-12-24 | 2019-04-19 | 厦门宏发开关设备有限公司 | A kind of small type circuit breaker operating mechanism and miniature circuit breaker |
| CN111243911A (en) * | 2020-01-15 | 2020-06-05 | 美高电气科技有限公司 | Novel mechanical mechanism circuit breaker |
| CN113380590A (en) * | 2021-07-01 | 2021-09-10 | 上海长城开关厂有限公司 | Small shell frame leakage reclosing switch |
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