CN206947279U - Breaker and distribution system - Google Patents
Breaker and distribution system Download PDFInfo
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- CN206947279U CN206947279U CN201720776056.5U CN201720776056U CN206947279U CN 206947279 U CN206947279 U CN 206947279U CN 201720776056 U CN201720776056 U CN 201720776056U CN 206947279 U CN206947279 U CN 206947279U
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Abstract
The utility model provides a kind of breaker and distribution system.A kind of breaker, including contact mechanism, electromagnetic release mechanism and arc-extinguishing mechanism, wherein：Contact mechanism can be in disjunction circuit fault current；Electromagnetic release mechanism includes static iron core, dynamic iron core and coil, and coil is arranged to produce electromagnetic field when receiving fault current so that static iron core driving dynamic iron core promotes the thrust of contact mechanism release with generation axially movable；Arc-extinguishing mechanism is used to cut off electric arc caused by contact mechanism disjunction fault current；Wherein, electromagnetic release mechanism and arc-extinguishing mechanism are arranged on the same side of contact mechanism, and electromagnetic release mechanism is in tilted layout relative to arc-extinguishing mechanism so that the distance between end of the electromagnetic release mechanism away from contact mechanism and arc-extinguishing mechanism are more than electromagnetic release mechanism close to the distance between the end of contact mechanism and arc-extinguishing mechanism.Increase the installing space of the arc-extinguishing mechanism of breaker, improve the breaking capacity of breaker.
Description
Technical field
The utility model belongs to electric switch technical field, more particularly to a kind of breaker and distribution system.
Background technology
Protection element of the breaker as electrical power trans mission/distribution system, can occur that circuit breaking in time during abnormal current in circuit
Open, ensure the safety of whole circuit and other electric appliance loads.Due to the rapid development of power network, electrical power trans mission/distribution system capacity constantly increases
Greatly, the integrated level of system is constantly improved, and manufacturing cost is reduced in order to improve the flexibility of electric equipment products, and is easy to manage, real
The maximization of feeder number amount is controlled in existing unit space, it is necessary to reduce the volume of breaker, deacclimatizes the installation of electrical power trans mission/distribution system
Space.
At present it is known that a kind of width of regular circuit breakers is 18mm, volume is relatively large, and larger sky is occupied in distribution box
Between.In order to reduce breaker space shared in distribution box, prior art provides the breaker that a kind of width is 9mm.
Although the breaker small volume of 9mm width, production and the assembly difficulty of product, and the electricity of the breaker in itself are added
Traffic specification only up to reach 32A.Further, since its width limits, electromagnetic release mechanism is caused to be unable to the more coils of coiling；
After width reduces, the diameter of iron core is also required to correspondingly reduce.So, for for example there was only the electricity of 1A or 2A low current specification
Short-circuit instantaneous protection is difficult to for road so that breaker of the performance indications of the breaker of 9mm width not as good as 18mm width.
Accordingly, it is desirable to provide a kind of new breaker and distribution system.
Utility model content
Effectively to solve one or more above-mentioned defects present in prior art, the utility model provides a kind of breaker
And distribution system, can realize while breaker space-consuming is reduced ensure breaker breaking capacity purpose.
To achieve these goals, the utility model takes following technical scheme：
According to the one side of the utility model embodiment, there is provided a kind of breaker, including contact mechanism, electromagnetic trip
Mechanism and arc-extinguishing mechanism, wherein：The contact mechanism can be in disjunction circuit fault current；Electromagnetic release mechanism includes quiet iron
Core, dynamic iron core and coil, coil are arranged to produce electromagnetic field when receiving fault current so that static iron core drives dynamic iron core along axle
To motion with produce promote contact mechanism discharge thrust；Arc-extinguishing mechanism is used to produce when cutting off contact mechanism disjunction fault current
Electric arc；Wherein, electromagnetic release mechanism and arc-extinguishing mechanism are arranged on the same side of contact mechanism, and electromagnetic release mechanism is relative
It is in tilted layout in arc-extinguishing mechanism so that the distance between end of the electromagnetic release mechanism away from contact mechanism and arc-extinguishing mechanism are more than
Electromagnetic release mechanism is close to the distance between the end of contact mechanism and arc-extinguishing mechanism.
According to the one side of the utility model embodiment, arc-extinguishing mechanism includes multiple arc extinguishing grid pieces, multiple arc extinguishing grid pieces
Arranged for interval and parallel to each other, and the axial direction of the dynamic iron core of electromagnetic release mechanism is not orthogonal to the arrangement side of arc extinguishing grid pieces
To.
According to the one side of the utility model embodiment, the axial direction and arc-chute of the dynamic iron core of electromagnetic release mechanism
The angle between the vertical direction of the arranged direction of piece being in angle is 10 °.
According to the one side of the utility model embodiment, the width of breaker is 9 millimeters to 18 millimeters.
According to the one side of the utility model embodiment, the width of breaker is 13.5 millimeters.
According to the one side of the utility model embodiment, electromagnetic release mechanism also includes rotatable release lever, threads off
Bar is rotated after its acceptance division receives the thrust of dynamic iron core, so as to promote its output section to discharge contact mechanism.
According to the one side of the utility model embodiment, the axial direction of dynamic iron core and the rotational trajectory phase of acceptance division
Cut.
According to the one side of the utility model embodiment, electromagnetic release mechanism also includes entering arc extinguishing for pilot arc
The static contact of the run-on tab of mechanism, run-on tab and contact mechanism is integral type structure or split-type structural.
According to the one side of the utility model embodiment, electromagnetic release mechanism also includes plunger return part, for making
Dynamic iron core and static iron core do not have to keep released state in the case of fault current in circuit.
According to the other side of the utility model embodiment, a kind of distribution system, including above-mentioned breaker are also provided.
To sum up, the breaker of the utility model embodiment and distribution system be provided with contact mechanism, electromagnetic release mechanism and
Arc-extinguishing mechanism.Electromagnetic release mechanism and arc-extinguishing mechanism are arranged on the same side of contact mechanism, by using by electromagnetic release mechanism
It is in tilted layout relative to arc-extinguishing mechanism so that the distance between end of the electromagnetic release mechanism away from contact mechanism and arc-extinguishing mechanism
More than electromagnetic release mechanism close to the distance between the end of contact mechanism and arc-extinguishing mechanism.Therefore, electromagnetic release mechanism is taken
One end close to mode of the arc-extinguishing mechanism other end away from arc-extinguishing mechanism be arranged on breaker in, compared with prior art in breaker
For, the installing space of arc-extinguishing mechanism on the premise of breaker overall volume is not increased, can be increased, so as to increase arc-chute
The installation number of piece.The purpose for the arc extinguishing efficiency for improving arc-extinguishing mechanism is realized, breaker can be finally improved and occur in circuit
Breaking capacity during abnormal current.
Brief description of the drawings
The drawings below of the application is used to understand the application in this as the part of the application.The implementation shown in accompanying drawing
Mode and its description are used for explaining principle of the present utility model.In the accompanying drawings：
Fig. 1 is the overall structure diagram for showing the breaker according to the utility model embodiment；
Fig. 2 is the overlooking the structure diagram for showing breaker shown in Fig. 1；
Fig. 3 is that the stereochemical structure for showing to be connected with static contact according to the electromagnetic release mechanism of the utility model embodiment is illustrated
Figure；
Fig. 4 is to show the partial structurtes diagrammatic cross-section according to the electromagnetic release mechanism of the utility model embodiment；
Fig. 5 is the off-state schematic diagram for showing breaker shown in Fig. 1.
Embodiment
The feature and exemplary embodiment of various aspects of the present utility model is described more fully below.Retouched in detail in following
In stating, many details are explained and illustrated, to provide to comprehensive understanding of the present utility model.But for
It will be apparent that the utility model can be in some details in not needing these details for those skilled in the art
In the case of implement.Description to embodiment below is used for the purpose of providing to this practicality by describing example of the present utility model
New is better understood from.The utility model is not limited to any concrete configuration set forth below, but is not departing from this practicality
Any modification, replacement and the improvement made to structure of the present utility model and part are covered on the premise of new spirit.Attached
In figure and following description, known structure and technology is not shown, to avoid to understanding that the technical solution of the utility model is made
Into unnecessary puzzlement.
In order to more fully understand the utility model, with reference to Fig. 1 to Fig. 5 to being provided according to the utility model embodiment
Breaker is described in detail.The orientation description being related in following examples is to be carried out using the reference orientation in accompanying drawing
Description, is not construed as limiting to the structure of breaker of the present utility model.
Fig. 1 shows the overall structure diagram of the breaker 1 according to the utility model embodiment.As shown in figure 1, according to
One embodiment of the present utility model, breaker 1 are connected to as the protection electrical equipment in circuit in electrical power trans mission/distribution system, and it includes：
Shell 10, the contact mechanism 40 being arranged in shell 10, electromagnetic release mechanism 20 and arc-extinguishing mechanism 30, arc-extinguishing mechanism 30 and electricity
Magnetic tripping mechanism 20 is arranged at the left side of contact mechanism 40.Electromagnetic release mechanism 20 has the end 22 of first end 21 and second, contact
Mechanism 40 includes the moving contact 42 and static contact 41 that can be contacted with each other or separate, when producing fault current in circuit, such as short circuit
During electric current, electromagnetic release mechanism 20 triggers contact mechanism 40 by producing electromagnetic field, promotes moving contact 42 and static contact 41
Separation.Installed compared to first end 21 away from arc-extinguishing mechanism 30 at second end 22 of electromagnetic release mechanism so that electromagnetic release mechanism
It is the reserved bigger installing space of arc-extinguishing mechanism 30 in the 20 limited installing space in breaker, enables arc-extinguishing mechanism 30
Electric arc caused by more quickly extinguishing moving contact 42 and the time of releasing of static contact 41, improve the arc extinguishing ability of arc-extinguishing mechanism.
Arc-extinguishing mechanism is the material impact part that can breaker be capable of fast and reliable ground disjunction faulty circuit.But
It is, it is again restricted to width so that the installing space of arc-extinguishing mechanism is limited because the internal structure of miniature circuit breaker is compact
System, have impact on the performance of breaker breaking current.In embodiment of the present utility model, by making electromagnetic release mechanism relative to going out
Arc mechanism tilts are installed, and add the installing space of arc-extinguishing mechanism.Therefore, on the premise of breaker overall volume is not increased,
The arc extinguishing speed of arc-extinguishing mechanism can be accelerated, and then improve breaker in circuit by increasing the installation numbers of arc extinguishing grid pieces
There is breaking capacity during short-circuit current limit.
Shell 10 uses insulating material, and please also refer to Fig. 2, Fig. 2 is shown according to the disconnected of the utility model embodiment
The overlooking the structure diagram of road device 1.As illustrated, shell 10 has two larger sides 18 and 18 ', and be formed at two compared with
Multiple narrow sides 19 between big side 18 and 18 ', its inside have accommodation space, can accommodate the building block of breaker 1.Outside
The width (i.e. length B between two larger sides 18 and 18 ') of shell 10 can be 9mm or 18mm normal width, can also
For 9mm to any customization width between 18mm, such as 14mm or 15mm, and preferably 13.5mm.The utility model is implemented
The scheme that the breaker 1 of example is obliquely installed as a result of electromagnetic release mechanism 20 relative to arc-extinguishing mechanism 30 so that it is going out
It is better than the existing breaker of same size in arc performance.
According to one embodiment of the present utility model, as shown in figure 1, the moving contact 42 in contact mechanism 40 is by corresponding to it
The connecting portion of setting is movably set in shell 10, and certain connecting portion can be that Split type structure or one are tied with moving contact 42
Structure, by the way that connecting portion is movably set in shell 10, can surround fixed rotating shaft rotation drive moving contact 42 with static contact 41
Contact position and separation point position between move, the one end of contact holding member 14 is fixed in shell 10, the other end and connecting portion
It is fixedly connected.Exemplarily, in the present embodiment, contact holding member 14 is the extension spring of diagram.Oval is offered on connecting portion
Shape spacing hole, in shell 10 to should spacing hole one spacer pin is set, connecting portion can drive moving contact 42 to enter around the spacer pin
Row rotation, thus the part such as contact holding member 14 and interlinked mechanism 50 and spacer pin coordinates jointly can make contact mechanism
Open position or bonding station are held between dynamic and static contact.
Certainly, the structure of the connecting portion of the moving contact in above-described embodiment and mounting means are not limited to this, as long as can
Realize that the impact of electromagnetic release mechanism is transferred into contact mechanism triggers dynamic and static contact separation, connecting portion is in other realities
Other attachment structures can also be used by applying in example.
Moving contact 42 can also be driven by the interlinked mechanism 50 that its upper end is installed and contact or separate with static contact 41, specifically
Ground, interlinked mechanism 50 include：Handle 51, the support 53 being arranged on handle 51 and it is connected in support 53 and connecting portion
Locking member 52 between recessed neck, handle 51 locking member 52, the snap action of recessed neck, reset components 15 pulling force,
Two operating positions are formed under the mating reaction of the pulling force and spacer pin of contact holding member 14：Open position and closure position
Put.
When needing cut-off breaker, i.e., handle 51 is allocated to open position (as shown in Figure 5), in reset components 15, handle
51st, interlinked mechanism 50 is made to lose clamping support force to connecting portion under the collective effect of support 53, locking member 52, contact is kept
Part 14 pulls connecting portion to be rotated around spacer pin so that and the moving contact 42 positioned at connecting portion lower end separates with static contact 41, from
And contact mechanism 40 is opened (dynamic and static contact separation), now contact holding member 14 can coordinate interlinked mechanism 50 and move
The rotary shaft of contact 42 remains off contact mechanism 40.
When needing close circuit breaker, then handle 51 is allocated to closing position (as shown in Figure 1), in handle 51, reset components
15 and the collective effect of contact holding member 14 and spacer pin under, locking member 52 engages with the recessed neck of connecting portion, above-mentioned
Clamping force caused by engaging coordinates jointly with contact holding member 14 and spacer pin, promotes moving contact 42 to be contacted with static contact 41
Conducting, so as to which contact mechanism 40 closes again, now contact holding member 14 can coordinate interlinked mechanism 50 and moving contact 42
Rotary shaft contact mechanism 40 is remained engaged with state.
Thermal tripping mechanism 60 is connected between the binding post 13 of moving contact 42 and second.Thermal tripping mechanism 60 includes bimetallic
Piece 61, Hard link part 62 and flexible connecting line 63 and adjusting screw.Touched by flexible connecting line 63 with dynamic one end of bimetal leaf 61
First 42 connection, the other end are connected by Hard link part 62 with the second binding post 13.
One end of static contact 41 in contact mechanism 40 can contact conducting, the other end and electromagnetic release mechanism with moving contact 42
20 are fixedly connected.According to one embodiment of the present utility model, specifically, refer to real according to the utility model shown in Fig. 3
The dimensional structure diagram that the electromagnetic release mechanism 20 of example is connected with static contact 41 is applied, and it is new according to this practicality shown in Fig. 4
The partial structurtes diagrammatic cross-section of the electromagnetic release mechanism 20 of type embodiment.As illustrated, electromagnetic release mechanism 20 has first
The end 22 of end 21 and second, integrally includes：The iron core being made up of in iron core sleeve pipe 23 dynamic iron core 27 and static iron core 27 ', quiet iron
The side for the close first end 21 that core 27 ' is fixed in iron core sleeve pipe 23, dynamic iron core 27 are movably set in relative to static iron core 27 '
Opposite side in iron core sleeve pipe 23, and dynamic iron core 27 is extended pushing mechanism 28, pushing mechanism towards the side of static iron core 27 '
28 are disposed through in static iron core 27 ', and can be stretched out at the first end 21 of electromagnetic release mechanism 20, form external part, to de-
Button bar 16 produces thrust, and release lever 16, which is rotated, makes interlinked mechanism 50 thread off, and then makes moving contact 42 and static contact 41
Separation.Exemplarily, pushing mechanism 28 is push rod, and the push rod can be structure as a whole with dynamic iron core 27 or Split type structure.
Being there is provided between dynamic iron core 27 and static iron core 27 ' by the plunger return part 29 being sheathed in pushing mechanism 28 makes its mutual
The thrust of spacing distance is kept, the plunger return part 29 is helical spring, and certain plunger return part 29 can also be other
The structure of thrust can be provided.
The corresponding position of static iron core 27 ' of coil 24 is set around outside iron core sleeve pipe 23, two freedom formed after the winding of coil 24
End correspond at the first end 21 of electromagnetic release mechanism 20 and at the second end 22 respectively, the free end of the corresponding first end 21 of coil 24 and
Static contact 41 connects, and the stationary contact on static contact 41 is set (as shown in Figure 1) towards the direction of moving contact 42, the correspondence of coil 24
The free end at the second end 22 is connected (as shown in Figure 1) by conductor 25 with the first binding post 12 so that in static contact 41 and is moved
Contact 42 is contacted in conducting process, flows through the coil 24 that the electric current inside breaker 1 passes through electromagnetic release mechanism 20.
According to one embodiment of the present utility model, run-on tab 26 is also electrically connected between coil 24 and static contact 41, is drawn
Arc plate 26 is between electromagnetic release mechanism 20 and arc-extinguishing mechanism 30, and its one end electrically connects with contact mechanism 40, and the other end is close
Arc-extinguishing mechanism 30, one is provided as resistance to flow through the high current of circuit breaker internal when can occur abnormal high current in circuit
Fixed metering function, further improve the overall interrupting performance of breaker.In the present embodiment, run-on tab 26 is with static contact 41
Split type structure, but the utility model not limited to this, in other examples, run-on tab 26 can also be one with static contact 41
Body formula structure, i.e., need not individually weld and installation procedure, simplify the structure of breaker.
Release lever 16 is articulated with breaker by rotating shaft, and is installed close to the first end 21 of electromagnetic release mechanism 20,
Rotated under the impetus of the external part of pushing mechanism 28.Specifically, release lever 16 includes acceptance division and output section, and it connects
Receipts portion can surround shaft swing after the shock of dynamic iron core 27 is received in a manner of similar to pendulum, form the pendulum of circular arc
Dynamic rail mark, by the oscillating motion of release lever 16, its output section can be such that locking member 52 deviates from from the recessed neck of connecting portion,
Trip action is completed, so as to promote moving contact 42 under the mating reaction of contact holding member 14 and spacer pin to away from stationary contact
First 41 direction motion, and keep the off-state between static contact 41.
Certainly, the structure of the release lever 16 in above-described embodiment and set-up mode are not limited to this, as long as can realize
Locking member 52 is deviate from from the recessed neck of connecting portion under the effect of impact of electromagnetic release mechanism, so realize promote it is dynamic and static
Contact separates, and release lever can also use the structure to be moved back and forth by elastic-restoring force in other embodiments.
The arc extinguishing that arc-extinguishing mechanism 30 includes isolation support member and is arranged in multiple gaps that isolation support member is formed
Grid 31, arc extinguishing grid pieces 31 stack arrangement in the same direction.Arc-extinguishing mechanism 30 is in shell 10 relative to electromagnetic release mechanism 20
It is installed on the opening position close to the rear wall 11 of shell 10, and the side of the second end 22 of proximity electromagnetic tripping mechanism 20.Electromagnetic trip
Mechanism 20 is set by using the second end 22 compared to first end 21 further from the mode of arc quenching system 30 so that electromagnetic trip machine
The axis of movement (axis as shown in the figure) of the dynamic iron core 27 of structure 20 is not orthogonal to the arc extinguishing grid pieces arranged direction of arc-extinguishing mechanism 30.I.e.
Electromagnetic release mechanism 20 in shell 10 centered on its first end 21 (i.e. to the impingement position of release lever 16), relative to going out
The direction that the arranged direction of arc grid 31 is vertical rotates predetermined angle installation.Exemplarily, can be by electromagnetic release mechanism 20
The angle of alleged angle is set to 10 ° between the vertical direction of the axis of movement of dynamic iron core 27 and the arranged direction of arc extinguishing grid pieces 31,
When the angle is arranged into 10 °, arc extinguishing grid pieces in arc-extinguishing mechanism 30 can be increased while the volume of breaker 1 is not increased
31 installation number, effectively lift the interrupting performance of breaker 1.Certain predetermined angle also by shell 10 whole height (i.e.
The distance from the bottom to top of diagram) determine, as long as the whole height of shell 10 makes the dynamic iron core 27 of electromagnetic release mechanism 20
After axis of movement rotates predetermined angle relative to the vertical direction of the arranged direction of arc extinguishing grid pieces, electromagnetic release mechanism disclosure satisfy that
20 drive pushing mechanism 28 to move to by dynamic iron core 27 completes trip action to the impingement position of release lever 16, so as to promote
Separated between moving contact 42 and static contact 41.
Because arc-extinguishing mechanism 30 is arranged at close second end 22 opening position of the lower section of electromagnetic release mechanism 20 so that arc extinguishing machine
Structure 30 can be away from above-mentioned impingement position in horizontal direction, therefore takes the second end 22 of electromagnetic release mechanism 20 away from going out
The mode that arc mechanism 30 is set can be that the arc-extinguishing mechanism 30 for being installed on the lower section of electromagnetic release mechanism 20 reserves more installations
Space.Because the set-up mode of the axis of movement of the dynamic iron core 27 of electromagnetic release mechanism 20 is centered on the position of first end 21
A predetermined angle is rotated, therefore it is still in the swinging track of the acceptance division of release lever 16 for the impingement position of release lever 16
Upper (circular trace shown in figure), can't influence the shock dynamics to release lever 16.Due to the inside of miniature circuit breaker
Structure install compact, width is again restricted, so the installing space of arc-extinguishing mechanism therein is limited.The utility model embodiment
Breaker 1 compared with prior art in by electromagnetic release mechanism parallel to the breaker that shell trailing flank and arc-extinguishing mechanism are set and
Speech, the installing space of arc-extinguishing mechanism 30 on the premise of breaker overall volume is not increased, can be increased, so as to increase arc-chute
The installation number of piece, and then the purpose for the arc extinguishing efficiency for improving arc-extinguishing mechanism 30 is realized, finally improve breaker 1 in circuit
There is breaking capacity during abnormal current.
By reasonably utilizing the accommodation space of case for circuit breaker, the structure of optimized breaker 1, change electromagnetic release mechanism 20
Mounting axis, the mode of installation parallel with arc-extinguishing mechanism compared to electromagnetic release mechanism, the part in breaker 1 can also be increased
The air gap between structure, so as to increase the air circulation inside breaker 1, internal heat is avoided to accumulate, further
Improve stability and reliability that breaker 1 works.Make the breaker 1 of the utility model embodiment with having in the prior art with it
The breaker for having same width (thickness) compares, and has stronger breaking capacity.
Certainly, the mutual alignment relation and shape between the dynamic and static iron core in above-described embodiment in electromagnetic release mechanism
With structure not limited to this, as long as can under the driving effect in magnetic field caused by coil, by electromagnetic release mechanism 20 trigger touch
The disjunction of head mechanism.In addition, in other examples, in electromagnetic release mechanism 20, dynamic iron core can also be arranged at quiet
Core interior, and dynamic iron core can also by other can the pushing mechanism of transmitting thrust trigger contact mechanism indirectly, Er Qiedong,
The shape of cross section of static iron core is also not necessarily limited to be circular configuration, and its cross section can also be square or other shapes.It is for example, dynamic
The cross section of iron core and static iron core can also be square.Accordingly, the construction of coil is also not necessarily limited to be wire form, can also be
Other are available for current flowing and the electric conductor that can be set around on the outside of static iron core, can equally realize the second of electromagnetic release mechanism
End is set away from arc-extinguishing mechanism, is embodied as the purpose of the reserved bigger installing space of arc-extinguishing mechanism.
Striking part 70 has to be released with 40 corresponding arc end of contact mechanism, its other end to be corresponding with arc-extinguishing mechanism 30
End is put, arc end is linear structure, and release end is arcuate structure.When the dynamic and static contact time of releasing produces electric arc, in contact mechanism
Under self-excitation magnetic fields caused by 40 dynamic and static contact, electric arc can move along striking part 70 to the direction of arc-extinguishing mechanism 30,
And enter in arc-extinguishing mechanism 30.Because the arc-extinguishing mechanism 30 in the utility model embodiment has more arc extinguishing grid pieces 31, because
This can cut into electric arc on the electric arc of more multi-stage series, arc voltage is increased rapidly, while limitation electric current rises, make electric arc
Voltage is higher than line system voltage, so as to promote electric arc more quickly to be extinguished.
The operating principle of electromagnetic release mechanism 20 and thermal tripping mechanism 60 is illustrated referring to figs. 1 to Fig. 5：
The coil 24 of electromagnetic release mechanism 20 caused magnetic field under the normal function of current is less than plunger return part 29
To the thrust between dynamic and static iron core so that dynamic and static iron core is kept at a distance in iron core sleeve 23 and geo-stationary.When in circuit
Short circuit current flowing through coil 24, coil 24, which produces stronger magnetic field, makes dynamic iron core 27 be attracted each other with static iron core 27 ', iron core 27
It can then be moved towards the direction of static iron core 27 ', pushing mechanism 28 is pushed out at first end 21.Pushing mechanism 28 reaches first end 21
After the impingement position to release lever 16 at place, release lever 16 is hit, release lever 16 is swung in the counterclockwise direction around rotating shaft, complete
Into trip action, moving contact 42 is finally promoted to be directed away from the motion of the direction of static contact 41.Therefore, moving contact 42 and static contact 41 it
Between separate power-off, that is, cut off breaker 1 internal circuit, handle 51, which is driven, moves to open position (as shown in Figure 5).
The setting of the axis of movement of the dynamic iron core 27 of electromagnetic release mechanism 20 is to rotate one centered on the position of first end 21
Predetermined angle, it is still in for the impingement position of release lever 16 on the swing camber line of the acceptance division of release lever 16, so fortune
Electromagnetic release mechanism 20 after the change of moving axis line position can't influence the shock dynamics to release lever 16.
During contact mechanism 40 connects conduction, when occurring overload current in circuit, the heating production of bimetal leaf 61
Raw flexural deformation, the release member 17 located at top is promoted to deviate from locking member 52 from the recessed neck of connecting portion.Match somebody with somebody simultaneously
Closing the pulling force effect of contact holding member 14 by the disjunction of contact mechanism 40 and makes contact mechanism 40 be held in off-state, handle 51
Driven indirectly with above-mentioned principle and be maintained at open position.
After failture evacuation in circuit, rotated counterclockwise by stirring handle 51, in locking member 52, contact maintaining part
Under the collective effect of the parts such as part 14, alignment pin, the conducting state that resumed contacts between moving contact 42 and static contact 41 is (such as 1 figure institute
Show).Coil 24 produces stronger induced field and disappeared simultaneously, dynamic iron core 27 and static iron core 27 ' pushing away in plunger return part 29
The original state for the preset distance that is separated is returned back under power effect, (i.e. dynamic and static separation of lifting one's head) prepares to thread off next time.
According to one embodiment of the present utility model, a kind of distribution system is also provided, the distribution system includes above-mentioned break
Road device, therefore its advantage is identical with breaker, therefore be not repeated here.
The utility model can be realized in other specific forms, without departing from its spirit and essential characteristics.Therefore, currently
Embodiment be all counted as being exemplary rather than in all respects limited, the scope of the utility model will by appended right
Ask rather than foregoing description definition, also, fall into claim implication and equivalent in the range of it is whole change so as to all by
It is included among the scope of the utility model.Also, the different technologies feature occurred in different embodiments can be combined,
To obtain beneficial effect.Those skilled in the art will be understood that simultaneously on the basis of studying accompanying drawing, specification and claims
Realize the embodiment of other changes of disclosed embodiment.
Claims (10)
1. a kind of breaker, including contact mechanism, electromagnetic release mechanism and arc-extinguishing mechanism, wherein：
The contact mechanism can be in disjunction circuit fault current；
The electromagnetic release mechanism includes static iron core, dynamic iron core and coil, and the coil is arranged to receiving the fault current
When produce electromagnetic field so that the static iron core drives the dynamic iron core to promote the contact mechanism to discharge to produce axially movable
Thrust；
The arc-extinguishing mechanism is used to cut off electric arc caused by fault current described in the contact mechanism disjunction；
Wherein, the electromagnetic release mechanism and the arc-extinguishing mechanism are arranged on the same side of the contact mechanism, and the electricity
Magnetic tripping mechanism is in tilted layout relative to the arc-extinguishing mechanism so that end of the electromagnetic release mechanism away from the contact mechanism
The distance between portion and described arc-extinguishing mechanism go out more than the electromagnetic release mechanism close to the end of the contact mechanism with described
The distance between arc mechanism.
2. breaker according to claim 1, wherein, the arc-extinguishing mechanism includes multiple arc extinguishing grid pieces, the multiple to go out
Arc grid arranged for interval and parallel to each other, and the axial direction of the dynamic iron core of the electromagnetic release mechanism is not orthogonal to described go out
The arranged direction of arc grid.
3. breaker according to claim 2, wherein, the axial direction of the dynamic iron core of the electromagnetic release mechanism with it is described
The angle between the vertical direction of the arranged direction of arc extinguishing grid pieces being in angle is 10 °.
4. breaker according to claim 1, wherein, the width of the breaker is 9 millimeters to 18 millimeters.
5. breaker according to claim 4, wherein, the width of the breaker is 13.5 millimeters.
6. breaker according to claim 1, the electromagnetic release mechanism also includes rotatable release lever, the dropout
Bar is rotated after its acceptance division receives the thrust of the dynamic iron core, so as to promote its output section to make the contact machine
Structure discharges.
7. breaker according to claim 6, wherein, the rotation rail of the axial direction of the dynamic iron core and the acceptance division
Mark is tangent.
8. breaker according to claim 1, wherein, the electromagnetic release mechanism also includes being used to guide the electric arc to enter
Enter the run-on tab of the arc-extinguishing mechanism, the static contact of the run-on tab and the contact mechanism is integral type structure or split type
Structure.
9. breaker according to claim 1, the electromagnetic release mechanism also includes plunger return part, described for making
Dynamic iron core and the static iron core do not have to keep released state in the case of fault current in circuit.
10. a kind of distribution system, including the breaker as described in claim any one of 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720776056.5U CN206947279U (en) | 2017-06-29 | 2017-06-29 | Breaker and distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720776056.5U CN206947279U (en) | 2017-06-29 | 2017-06-29 | Breaker and distribution system |
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| Publication Number | Publication Date |
|---|---|
| CN206947279U true CN206947279U (en) | 2018-01-30 |
Family
ID=61366156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720776056.5U Active CN206947279U (en) | 2017-06-29 | 2017-06-29 | Breaker and distribution system |
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| CN (1) | CN206947279U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275163A (en) * | 2017-06-29 | 2017-10-20 | 首瑞（天津）电气设备有限公司 | Breaker and distribution system |
| CN112701013A (en) * | 2019-10-23 | 2021-04-23 | 北京京人电器有限公司 | Switch device |
-
2017
- 2017-06-29 CN CN201720776056.5U patent/CN206947279U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275163A (en) * | 2017-06-29 | 2017-10-20 | 首瑞（天津）电气设备有限公司 | Breaker and distribution system |
| CN112701013A (en) * | 2019-10-23 | 2021-04-23 | 北京京人电器有限公司 | Switch device |
| CN112701013B (en) * | 2019-10-23 | 2023-12-22 | 北京京人电器有限公司 | Switching device |
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