CN106548912B - Breaker - Google Patents
Breaker Download PDFInfo
- Publication number
- CN106548912B CN106548912B CN201510606697.1A CN201510606697A CN106548912B CN 106548912 B CN106548912 B CN 106548912B CN 201510606697 A CN201510606697 A CN 201510606697A CN 106548912 B CN106548912 B CN 106548912B
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- CN
- China
- Prior art keywords
- arc
- chutes
- shell
- outlet passageway
- breaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/18—Means for extinguishing or suppressing arc
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/346—Details concerning the arc formation chamber
Abstract
Breaker of the present invention, including shell and the arc-chutes for being placed in enclosure interior；The arc-chutes include one group of arc extinguishing grid pieces, the side upper corners of one group of arc extinguishing grid pieces are equipped with striking slot, it further include upper arc leading angle, the upper arc leading angle is located at the side of arc-chutes, and one end of upper arc leading angle extend into striking slot and introduces the electric arc of generation in arc-chutes.Striking slot is arranged by the corner of the arc extinguishing grid pieces in arc-chutes in breaker of the present invention, and one end of upper arc leading angle can be protruded into the striking slot of arc-chutes；Make the volume maximization of arc-chutes in the limited space of circuit breaker internal by the optimization to arc quenching chamber structure, improves the arc extinguishing ability of breaker, and then guarantee the breaking capacity of breaker, while the layout structure of breaker is more compact and reasonable.Striking slot is designed as V-arrangement, and electric arc can effectively be sucked to arc-chutes, and striking slot uses asymmetric design, and the downside of arc-chutes is allowed to sink to housing bottom, and the shorter edge of upper side can cooperate the placement of static contact.
Description
Technical field
The present invention relates to Low Voltage Electrical Apparatus, in particular to a kind of breaker.
Background technique
As electrical equipment gradually increases, the development trend of electrical network capacity incrementally increased with breaker miniaturization needs
Breaker has stronger breaking capacity, becomes as the arc quenching system of breaker important component and the performance of operating mechanism
It is even more important.Increasing with electrical equipment, the form-making design and Electrical Safety problem of product are increasingly by people
Attention.
Arc-chutes in existing arc quenching system are mostly symmetrical structure, in miniature circuit breaker, since inner space is small, divides
Cutting capacity requires height, is limited to the distribution of contact, if arc-chutes symmetric design, the volume of arc-chutes will reduce, and is unfavorable for
The raising of breaking capacity.The exhaust channel structure design that arc quenching system mostly uses single channel, unit to set simultaneously, be easy to cause disjunction
Outlet is unsmooth when test, while electric arc is easy to weaken the breaker disjunction energy of breaker significantly in arc-chutes short circuit breakdown behind
Power.
The reset element of the operating mechanism of existing breaker, the lever of operating mechanism uses plastic material, and structure is designed as
Waveform elastomer generates deformation power using the extrusion deformation of waveform elastomer and realizes that lever resets, and the resetting technique is limited
In material reason, plastic deformation easily occurs and causes to fail, is unfavorable for the reliability of product.
Existing breaker structure is easy the danger touched with terminal screw, a part there are connecting terminal depth as shallow human body
Manufacturer increases single boss structure design using single connecting terminal, and overall appearance is discontinuous, influences product beauty.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies, a kind of simple and compact for structure, performance stabilization, cost are provided
Low breaker.
To achieve the above object, present invention employs following technical solutions:
A kind of breaker, including shell 1 and the arc-chutes 15 being placed in inside shell 1；The arc-chutes 15 include one group and go out
The side upper corners of arc grid 151, one group of arc extinguishing grid pieces 151 are equipped with striking slot 150, further include upper arc leading angle 16a, institute
The side that arc leading angle 16a is located at arc-chutes 15 is stated, one end of upper arc leading angle 16a extend into the electricity in striking slot 150 by generation
Arc introduces in arc-chutes 15.
Further, the striking slot 150 is V-shaped, and the two sides of striking slot 150 extend respectively to the upper of arc extinguishing grid pieces 151
End side side and side side, striking slot 150 form in the side upper corners of arc extinguishing grid pieces 151 and avoid lacking for upper arc leading angle 16a
Mouthful, after upper arc leading angle 16a is fixed, one end can protrude into the indentation, there of arc extinguishing grid pieces 151, and striking slot 150 is from v-shaped opening one end the bottom of to
Portion one end extends obliquely downward setting.
Further, the striking slot 150 includes V-arrangement arc angle 150c, and one end of V-arrangement arc angle 150c is to arc extinguishing grid pieces 151
Upper end side tilts upward extension and is equipped with the first bevel edge 150a, and the other end of V-arrangement arc angle 150c is to the side side of arc extinguishing grid pieces 151
While extending obliquely downward equipped with the second bevel edge 150b.
Further, the angle of the first bevel edge 150a and the second bevel edge 150b are obtuse angle.
Further, the length of the upper side edge of the striking slot 150 is less than the length of lower side.
It further, further include lower arc leading angle 16b, static contact 10, moving contact 11 is fixed on shell 1 and exposed in shell 1
Outer handle 2 and the operating mechanism connecting with handle 2, the static contact 10 and lower arc leading angle 16b are fixedly installed on shell 1
Interior, one end of the moving contact 11 is connect with operating mechanism, and the upper arc leading angle 16a is U-shaped, the other end and the company of static contact 10
Connect, lower arc leading angle 16b is located at the bottom of shell 1, and the lower end base of arc-chutes 15 is stretched in one end of lower arc leading angle 16b, it is described on
Form striking channel between arc leading angle 16a and lower arc leading angle 16b, the one end in striking channel is close to static contact 10 and moving contact 11
Zone of action, the other end extend to the striking slot 150 of arc-chutes 15.
It further, further include the grid positioning plate 152 that arc extinguishing grid pieces 151 are fixed, the two of the arc extinguishing grid pieces 151
End is equipped with the pockets 151a for accommodating grid positioning plate 152, and the bottom pockets 151a protrusion is equipped with grid fixed column
151b, the grid positioning plate 152 are equipped with grid fixation hole 152a corresponding with grid fixed column 151b.
Further, the operating mechanism includes U-shaped bar 3, tripping 4, lock 5, contact support 6 and support 9, the U-shaped bar 3
One end connect with handle 2, the other end is connect with tripping 4, and the lock 5 is connected with 4 hasp of tripping, the lock 5, tripping 4
Support that 6 are pivotably attached on support 9 with contact, support 9 is pivotably attached to inside shell 1, and the lock 5, tripping 4 are pivotally connected
In one end of support 9, contact supports 6 other ends for being pivotably attached to support 9.
It further, further include tripping coil 12, bimetal leaf 8 and tripping hook 7,7 one end and lock is linked up in the tripping
5 connection of button, the other end are oppositely arranged with bimetal leaf 8, and the operating mechanism is located at the side of shell 1, and tripping coil 12 is located at
1 middle part of shell is oppositely arranged with operating mechanism, and the arc-chutes 15 are set to 1 bottom of shell, positioned at the lower section of tripping coil 12；Institute
It states tripping coil 12 and is equipped with striker 121 towards 5 one end of lock, when short circuit, the striker 121 of tripping coil 12 is ejected directly
Open lock 5；When circuit overloads, the 7 drive tripping 4 of the bending touching tripping of bimetal leaf 8 hook and lock 5 unbutton cutting electricity
Road.
Further, the shell 1 is being equipped with multiple exhaust outlets close to 15 side of arc-chutes, and each exhaust outlet is to shell
1 internal stretch is arranged multiple outlet passageways and connect with the side of arc-chutes 15.
Striking slot is arranged by the corner of the arc extinguishing grid pieces in arc-chutes in breaker of the present invention, and one end of upper arc leading angle can stretch
Enter in the striking slot of arc-chutes；Make arc-chutes in the limited space of circuit breaker internal by the optimization to arc quenching chamber structure
Volume maximization improves the arc extinguishing ability of breaker, and then guarantees the breaking capacity of breaker, while the layout structure of breaker
It is more compact and reasonable.Striking slot is designed as V-arrangement, and electric arc can effectively be sucked to arc-chutes, and striking slot uses asymmetric design,
The downside of arc-chutes is allowed to sink to housing bottom, the shorter edge of upper side can cooperate the placement of static contact.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure of breaker of the present invention；
Fig. 2 is the structural schematic diagram of operation of the present invention mechanism；
Fig. 3 is the structural schematic diagram in another orientation of operation of the present invention mechanism；
Fig. 4 is the exploded view of operation of the present invention mechanism；
Fig. 5 is the schematic diagram of breaker lock and tripping hook of the present invention；
Fig. 6 is the structural schematic diagram that contact of breaker of the present invention is supported；
Fig. 7 is the plan view that contact of breaker of the present invention is supported；
Fig. 8 is the structural schematic diagram of breaker torque spring of the present invention；
Fig. 9 is the structural schematic diagram of circuit breaker internal arc quenching system of the present invention；
Figure 10 is the scheme of installation of support of the present invention and lock and reset spring；
Figure 11 is the exploded view of support of the present invention and lock and reset spring；
Figure 12 is the structural schematic diagram of arc-chutes of the present invention；
Figure 13 is the structural schematic diagram of arc extinguishing grid pieces of the present invention；
Figure 14 is the structural schematic diagram of arc quenching system of the present invention；
Figure 15 is the structural schematic diagram of the annular convex platform of breaker two sides of the present invention junction block；
Figure 16 is the plan view of the annular convex platform of breaker two sides of the present invention junction block.
Specific embodiment
Below in conjunction with the embodiment that attached drawing 1 to 16 provides, the specific embodiment of breaker of the invention is further illustrated.
Breaker of the invention is not limited to the following description.
As shown in Fig. 1,9, breaker of the present invention, including shell 1 is fixed on shell 1 and the exposed handle outside shell 1
2, the operating mechanism being connect with handle 2, delayed releasing system, instantaneous trip system and arc quenching system.It further include 11 He of moving contact
Static contact 10, static contact 10 are fixedly installed in shell, and the operating mechanism is connect with moving contact 11, and operating mechanism can drive dynamic
Contact 11 rotates, so that the contact closure and separation of moving contact 11 and static contact 10, are switched on and off circuit.The arc quenching system
Set on 1 bottom of shell, the electric arc generated when for eliminating breaker on-off.
As shown in Figs 1-4, the operating mechanism includes U-shaped bar 3, tripping 4, lock 5, contact support 6 and support 9, the U
One end of type bar 3 is connect with handle 2, and the other end is connect with tripping 4, and lock 5 is connected with 4 hasp of tripping, the lock 5, tripping 4
Support that 6 are pivotably attached on support 9 with contact, support 9 is pivotably attached to inside shell 1, and the lock 5, tripping 4 are pivotally connected
In one end of support 9, contact supports 6 other ends for being pivotably attached to support 9.
As shown in Figs 1-4, the delayed releasing system and instantaneous trip system are respectively arranged at the two sides of operating mechanism.
The delayed releasing system includes the bimetal leaf 8 and tripping hook for being fixed at 1 operating mechanism side of shell
7, the tripping hook 7 is connected to one end of lock 5, and side and the tripping hook 7 of the bimetal leaf 8 are oppositely arranged, and works as electricity
When passing by load, 8 heated bending of bimetal leaf touching tripping hook, 7 drive tripping 4 and lock 5 are unbuttoned.
The instantaneous trip system includes tripping coil 12.The tripping coil 12 is equipped with striker towards 5 one end of lock
121, when short circuit, the striker 121 of tripping coil 12, which ejects, directly opens lock 5, so that lock 5 and tripping 4 are unbuttoned, cuts
Deenergizing.
As shown in figure 9, the arc quenching system includes arc-chutes 15, and upper arc leading angle 16a, lower arc leading angle 16b, the static contact
10 and lower arc leading angle 16b is fixedly installed in shell 1, and one end of the moving contact 11 is connect with operating mechanism, the upper striking
Angle 16a be it is U-shaped, the other end is connect with static contact 10, and lower arc leading angle 16b is located at the bottom of shell 1, one end of lower arc leading angle 16b
The lower end base of arc-chutes 15 is stretched to, forms striking channel, striking channel between the upper arc leading angle 16a and lower arc leading angle 16b
One end close to the zone of action of static contact 10 and moving contact 11, the other end extends at the striking mouth of arc-chutes 15.It is described to go out
The rear side of arc chamber 15 is additionally provided with outlet passageway.The electric arc that arc quenching system generates breaker in make and break process is fast into arc leading angle is crossed
Speed enters arc-chutes, and absorbs and be discharged the high heat gas that electric arc generates.
As shown in figure 4, specifically, the operating mechanism further includes that contact supports fixing axle 95, the lock 5,4 and of tripping
Contact supports that 6 are pivotably attached on support 9；One end of the support 9 is equipped with the first fixed column 92 and the second fixed column 93, described
Lock 5 is pivoted in the first fixed column 92, and the tripping 4 is pivoted in the second fixed column 93, and the middle part of support 9 is set
There is the first fixation hole 94, the contact supports 6 to support fixing axle 95 and the first fixation hole 94 to be pivoted on support 9 by contact
On, contact supports 6 to be fixed by torque spring 13, support fixing axle 95 to pass through the first fixation hole 94 and be mounted on shell 1,
Support 9 can be rotated around support fixing axle 95.
As shown in figure 4, the other end of the support 9 is equipped with the first limited post 91 and the second limited post 96, the contact branch
6 one end is held between the first limited post 91 and the second limited post 96.The other side of support 9 is equipped with the first limited post 91 and the
Two limited posts 96, between the first limited post 91 and the second limited post 96, contact supports 6 movement for one end of contact support 6
Stroke is limited by the first limited post 91 and the second limited post 96.
As shown in Figure 4,5, the lock 5 includes the first lock end arms 51 and the second lock end arms 52, first lock
The end of end arms 51 and tripping 4 are snap-fitted, and the tripping hook 7 and the second lock end arms 52 are fixed, second lock end
The end of arm 52 is equipped with the trip link 53 towards the striker 121 of tripping coil 12；The side of the second lock end arms 52 is convex
The middle part for being equipped with lock 5 described in retention bead 54 out is equipped with third fixed column 55, and the lock 5 is pivoted by third fixed column 55
It is mounted in the first fixed column 92.
Breaker of the present invention, it is two that the contact, which supports 6, and respectively phase line contact is supported and neutral conductor contact is supported,
Also set up two pairs of static contacts 10 and moving contact 11 for supporting cooperation with the support of phase line contact and neutral conductor contact respectively；Support 9
Middle part is equipped with the first fixation hole 94, and the phase line contact is supported and neutral conductor contact is supported through contact support fixing axle 95 and the
One fixation hole 94 is pivoted on the two sides of support 9.Breaker setting phase line contact of the present invention is supported and neutral conductor contact is supported,
Phase line contact is supported and neutral conductor contact supports that a pair of of moving contact and static contact are accordingly arranged respectively, and handle once-through operation can be simultaneously
Phase line and neutral current circuit are controlled, so that electric appliance is disconnected with power grid rapidly.
As shown in figs 6-8, it includes registration arm 61 and motion arm 62 that the contact, which supports 6,；One end of the motion arm 62 with
Moving contact 11 connects, and the middle part of the registration arm 61 is equipped with the second groove 611, fixes in the second groove 611 equipped with torque spring
Axis 601, the side of the second groove 611 form spring arm spacing block set 63, and the registration arm 61 is equipped with to side protrusion and contradicts convex block
612.It further include two torque springs 13, the two sides of the support 9 are respectively equipped with the first limited post 91, described two torque springs
13 are individually fixed in the torque spring fixing axle 601 of two contacts supports 6, respectively by the first limited post after the compression of both ends spring arm
91 and spring arm spacing block set 63 limited；One end spring arm of the torque spring 13 supports 6 sides extend to be equipped with torsion to contact
Spring fixed end 133, described two contacts support 6 to be respectively equipped with the second fixation hole cooperated with torque spring fixing end 133
602。
The operating mechanism further includes the main spring 19 for making whole operation reset, and one end of main spring 19 and operating mechanism connect
It connects, the other end offsets with shell 1 and connect.
The action process of circuit breaker operation mechanism is as follows: when breaker closing, handle 2 drives tripping 4 to rotate, further band
Dynamic lock 5, contact support 6 and support 9 rotate, and lock 5 and 4 hasp of tripping link together, and contact supports the dynamic touching of 6 one end
First 11 connect circuit with the closure of static contact 10 being fixed on inside shell 1, at this point, main spring 19 is by compressed energy-storage, torque spring 13
Both ends end arms is also by compressed energy-storage；When breaker open operation, lock 5 and tripping 4 unbutton band moving contact and support 6 and the rotation of support 9,
Torque spring 13 supports 6 contacts are supported to reset to provide power for contact, and compressed main spring 19 is the reset of whole operation mechanism
Power is provided.
As shown in Figure 10,11, breaker of the present invention is equipped with so that the reset bullet that lock 5 resets between lock 5 and support 9
Spring 18, when circuit breaker tripping, after lock 5 and tripping 4 are unbuttoned and drive breaker open operation, reset spring 18 drives lock 5 and jumps
4 hasps are detained to link together.Breaker of the present invention, by being pivotally connected setting reset between lock and support on the support
Spring realizes the reliable reset of lock, solves the easily-deformable failure of plastics elastic body, resets insecure problem.
As described in Figure 10-11, the reset spring 18 is torsional spring, and the reset spring 18 is fixed on the other side of support 9,
Including the first spring arm 181 and the second spring arm 182, the support 9 is equipped with the 4th fixed column 97 of fixed reset spring 18, described
The middle part of 4th fixed column 97 is equipped with the gap 971 cooperated with the first spring arm 181, and the lock 5 is equipped with matches with the second spring arm 182
The lock pillar 56 of conjunction, the first spring arm 181 and the second spring arm 182 of the reset spring 18 are respectively by between the 4th fixed column 97
The lock pillar 56 of gap 971 and lock 5 is limited.The gap 971 being arranged in the middle part of 4th fixed column 97 can make the 4th to consolidate
Fixed column 97 scatters from centre to two sides, and the fixation of such reset spring 18 is just more reliable and more stable.When installation, reset spring 18
First spring arm 181 is caught in the gap 971 of the 4th fixed column 97, and the limit of pillar 56 is snapped after 182 stress and deformation of the second spring arm,
After latching generation relative displacement between 5 and support 9, reset spring 18 is that lock 5 provides the restoring force of reset.
As shown in figs. 10-11, the lock pillar 56 is equipped with the lock being clasped with the first spring arm 181 to side protrusion
Convex block 561 is buckled, the end of the first spring arm 181 extends to be equipped with towards the lock bending of pillar 56 buckles convex block 561 with lock
The first of cooperation extends spring arm 184.Latch 56 side of pillar protrusion setting lock buckle convex block 561, prevent the first spring arm 181 by
Power skids off when acting, and the first spring arm 181 extends towards the lock bending of pillar 56 and extends spring arm 184 equipped with first, and first extends spring
Arm 184 and lock buckle convex block 561 cooperate, so that the relatively reliable stabilization of the installation of reset spring 18.
As shown in figure 11, the reset spring 18 further includes spiral helicine reset spring ontology 183, the reset spring sheet
Body 183 is sleeved in the 4th fixed column 97 and fixes, and one end of the reset spring ontology 183 extends to form the first spring arm to side
181, the other end of the reset spring ontology 183 is passed through from 183 internal cavities of reset spring ontology to reset spring ontology 183
One end extend be equipped with the second spring arm 182.
As illustrated by figs. 12-13, arc-extinguishing chamber of circuit breaker 15 of the present invention is including one group of arc extinguishing grid pieces 151 and to one group of arc extinguishing grid pieces
The 151 grid positioning plates 152 being fixed；The side upper corners of one group of arc extinguishing grid pieces 151 are equipped with striking slot 150, also
Including upper arc leading angle 16a, the upper arc leading angle 16a is located at the side of arc-chutes 15, and one end of upper arc leading angle 16a extend into striking
The electric arc of generation is introduced in arc-chutes 15 in slot 150.Breaker of the present invention is set by the corner of the arc extinguishing grid pieces in arc-chutes
Striking slot is set, one end of upper arc leading angle can be protruded into the striking slot of arc-chutes；By the optimization to arc quenching chamber structure, in breaker
In internal limited space, make the volume maximization of arc-chutes, improve the arc extinguishing ability of breaker, and then guarantees point of breaker
Cutting capacity, while the layout structure of breaker is more compact and reasonable.
As shown in figure 13, the striking slot 150 is V-shaped, and the two sides of striking slot 150 extend respectively to arc extinguishing grid pieces 151
Upper end side and side side, striking slot 150 forms in the side upper corners of arc extinguishing grid pieces 151 and avoids upper arc leading angle 16a
Notch, after upper arc leading angle 16a is fixed, one end can protrude into the indentation, there of arc extinguishing grid pieces 151, and striking slot 150 is from v-shaped opening one end
Setting is extended obliquely downward to bottom end.Striking slot 150 is designed as V-arrangement, and electric arc can effectively be sucked to arc-chutes 15, drawn
Arc slot 150 uses asymmetric design, allows the downside of arc-chutes 15 to sink to 1 bottom of shell, the shorter edge of upper side can
To cooperate the placement of static contact.The length of the upper side edge of the striking slot 150 is less than the length of lower side.The one end in striking channel
Close to the zone of action of static contact 10 and moving contact 11, the other end extends to the striking slot 150 of arc-chutes 15.The striking slot
150 include V-arrangement arc angle 150c, and one end of V-arrangement arc angle 150c tilts upward extension to the upper end side of arc extinguishing grid pieces 151 and is equipped with the
The other end of one bevel edge 150a, V-arrangement arc angle 150c are extended obliquely downward to the side side of arc extinguishing grid pieces 151 equipped with the second bevel edge
150b.The angle of the first bevel edge 150a and the second bevel edge 150b are obtuse angle.First bevel edge 150a's and the second bevel edge 150b
Angle is set as obtuse angle, to greatest extent by electric arc introduce striking slot 150 at, after can be relatively little of by V-arrangement arc angle 150c
Electric arc is introduced into arc-chutes 15 by obstruction carries out arc extinguishing.
As shown in figure 12, the both ends of the arc extinguishing grid pieces 151 are equipped with the pockets 151a for accommodating grid positioning plate 152,
The bottom pockets 151a protrusion is equipped with grid fixed column 151b, and the grid positioning plate 152 is equipped with and grid fixed column
The corresponding grid fixation hole 152a of 151b.Grid positioning plate 152 is installed in pockets 151a, on grid positioning plate 152
Grid fixation hole 152a is coupled with the grid fixed column 151b on arc extinguishing grid pieces 151, the upper end of one group of arc extinguishing grid pieces 151 with
One piece of grid positioning plate 152 is fixed, and lower end is fixed with two pieces of grid positioning plates 152.
As shown in Fig. 9,14, breaker of the present invention further includes the junction block 17 that 1 two sides of shell are arranged in, the arc-chutes
Side multiple outlet passageways be set be connected with arc-chutes 15, the shell 1 is in close 15 side of arc-chutes equipped with multiple exhausts
Mouth is connected with the other end of outlet passageway.Multiple outlet passageways, shell is arranged by the rear side in arc-chutes in breaker of the present invention
The upper multiple exhaust outlets of setting are connected with outlet passageway, can effectively reduce the hyperbar generated when breaker disjunction, reduce to electric arc
The resistance of movement enables breaker fast arc extinction.
As shown in Fig. 9,14, the outlet passageway point multilayer is arranged, every layer of multiple outlet passageways of setting.The arc-chutes 15
Side be parallel to the layering of shell 1 and be equipped with two layers of outlet passageway layer, respectively upper layer outlet passageway and lower layer's outlet passageway, upper layer
Outlet passageway and lower layer's outlet passageway are respectively by being divided into two outlet passageways perpendicular to the partition of shell 1, so that by arc-chutes
The air-flow of 15 discharges can be discharged by the outlet passageway of different level, achieve the effect that fast arc extinction.The exhaust outlet is two
A, described two exhaust outlets are respectively first row port 102 and second exhaust port 103, and the first row port 102 is set to shell
Close to the side of junction block 17 in 1, the second exhaust port 103 is set to shell 1 close to bottom side.Outlet passageway, which divides two layers, to be set
It sets, can be discharged by bilevel outlet passageway by the air-flow that arc-chutes 15 are discharged, and shell 1 is close to junction block
An exhaust outlet is respectively arranged in 17 sides and bottom side, greatly enhances the discharge of circuit breaker internal gas, improves arc quenching effect.
As shown in Fig. 9,14, the upper layer outlet passageway includes the upper partition that shell 1 is extended to arc-chutes 15
104, upper partition 104 is arc-shaped partition, and upper layer outlet passageway is divided into the first upper layer outlet passageway 105 and the second upper layer
One end of outlet passageway 106, the first upper layer outlet passageway 105 and the second upper layer outlet passageway 106 extends to the one of arc-chutes 15
Side, the other end extend at second exhaust port 103.Upper partition 104 is arranged in upper layer outlet passageway, and upper layer outlet passageway is divided into
First upper layer outlet passageway 105 and the second upper layer outlet passageway 106, the first upper layer outlet passageway 105 and the second upper layer outlet are logical
Road 106 shares a second exhaust port 103.Lower layer's outlet passageway includes the lower layer that shell 1 is extended to arc-chutes 15
Lower layer's outlet passageway is divided into first lower layer's outlet passageway 107 and second lower layer's outlet passageway 108, the first lower layer by partition 109
One end of outlet passageway 107 extends to the side of arc-chutes 15, and the other end extends at first row port 102, and the second lower layer goes out
The one end in gas channel 108 extends to the side of arc-chutes 15, and the other end extends at second exhaust port 103.Lower layer's outlet passageway
Lower partition 109 is set, lower layer's outlet passageway 107 is divided for first lower layer's outlet passageway 107 and second lower layer's outlet passageway
108, the other end of first lower layer's outlet passageway 107 and second lower layer's outlet passageway 108 respectively with side junction block 17 first
The second exhaust port 103 of 1 bottom of exhaust outlet 102 and shell connects.
In addition, first lower layer outlet passageway 107 may be set to be surge chamber, surge chamber towards arc-chutes 15 one
Side is equipped with air inlet 107a, the other side of surge chamber and the connection of first row port 102.First lower layer's outlet passageway 107 is slow
Room is rushed, enters surge chamber buffering from the portion gas that 15 side of arc-chutes is discharged from air inlet 107a, portion gas is by the
The discharge of one exhaust outlet 102, another part gas enter second lower layer's outlet passageway 108 through the by surge chamber air inlet 107a
The discharge of two exhaust outlets 103.
As shown in Figure 15,16, breaker of the present invention, including multipole circuit breaker unit, the wiring of every pole breaker unit
Seat 17 includes the terminal screw window 171 opened up on junction block 17, on multiple junction blocks 17 of the multipole circuit breaker unit
Terminal screw window 171 around multiple breaker units is equipped with an annular convex platform 172.This practical breaker is multipole open circuit
The annular convex platform for preventing finger error shock is arranged around multiple terminal screw thereabouts in device, multipole circuit breaker side,
It is easy to process, good appearance.
As shown in Figure 15,16, the middle part of the annular convex platform 172 is equipped with annular groove 173.The middle part of annular convex platform 172
Equipped with annular groove 173, prevents finger from sliding into junction block 17 and Danger Electric shock risk occurs.
As shown in Figure 15,16, the annular convex platform 172 is racetrack boss, including two sections of straightways disposed in parallel
The 172a and arc section 172b for being connected to two sections of both ends straightway 172a.The annular convex platform 172 is ellipse or rectangular convex
Platform.
The breaker is the two poles of the earth, and the two sides of breaker are respectively equipped with two junction blocks 17, two junction blocks 17 of every side
Upper end is respectively equipped with a terminal screw window 171, and the top ring of two sides junction block 17 is distinguished around two terminal screw windows 171
Equipped with an annular convex platform 172.The shell 1 includes pedestal, covers and be set to the partition 1a between pedestal and lid, pedestal, lid
It is combined into the junction block 17 of breaker two sides jointly with partition 1a, the arc section 172b at the both ends is respectively arranged on pedestal and covers,
The two sides straightway 172a is set on partition 1a.Annular convex platform 172 is common by the part on pedestal and lid and partition 1a respectively
It slaps together, structure is simple, practical and attractive.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (11)
1. a kind of breaker including shell (1) and is placed in the internal arc-chutes (15) of shell (1), it is characterised in that: the arc extinguishing
Room (15) includes one group of arc extinguishing grid pieces (151), and the side upper corners of one group of arc extinguishing grid pieces (151) are equipped with striking slot
It (150), further include upper arc leading angle (16a), the upper arc leading angle (16a) is located at the side of arc-chutes (15), upper arc leading angle (16a)
One end extend into striking slot (150) and to introduce the electric arc of generation in arc-chutes (15)；The striking slot (150) is V-shaped, draws
The two sides of arc slot (150) extend respectively to the upper end side and side side of arc extinguishing grid pieces (151), and striking slot (150) is going out
The side upper corners of arc grid (151) form the notch for avoiding upper arc leading angle (16a), after upper arc leading angle (16a) is fixed, one end
The indentation, there of arc extinguishing grid pieces (151) can be protruded into.
2. breaker according to claim 1, it is characterised in that: the striking slot (150) is from v-shaped opening one end to bottom
One end extends obliquely downward setting.
3. breaker according to claim 2, it is characterised in that: the striking slot (150) includes V-arrangement arc angle (150c), V
One end of shape arc angle (150c) tilts upward extension to the upper end side of arc extinguishing grid pieces (151) and is equipped with the first bevel edge (150a), V-arrangement
The other end of arc angle (150c) is extended obliquely downward to the side side of arc extinguishing grid pieces (151) equipped with the second bevel edge (150b).
4. breaker according to claim 3, it is characterised in that: first bevel edge (150a) and the second bevel edge (150b)
Angle be obtuse angle.
5. breaker according to claim 2, it is characterised in that: the length of the upper side edge of the striking slot (150) is less than
The length of lower side.
6. -5 any breaker according to claim 1, it is characterised in that: further include lower arc leading angle (16b), static contact
(10), moving contact (11) are fixed on shell (1) and exposed connect in the outer handle (2) of shell (1) and with handle (2)
Operating mechanism, the static contact (10) and lower arc leading angle (16b) are fixedly installed in shell (1), and the one of the moving contact (11)
End connect with operating mechanism, the upper arc leading angle (16a) be it is U-shaped, the other end is connect with static contact (10), lower arc leading angle (16b)
Positioned at the bottom of shell (1), the lower end base of arc-chutes (15), the upper arc leading angle are stretched in one end of lower arc leading angle (16b)
Striking channel is formed between (16a) and lower arc leading angle (16b), the one end in striking channel is close to static contact (10) and moving contact (11)
Zone of action, the other end extends to the striking slot (150) of arc-chutes (15).
7. breaker according to claim 1, it is characterised in that: further include the grid that arc extinguishing grid pieces (151) are fixed
Piece positioning plate (152), the both ends of the arc extinguishing grid pieces (151) are equipped with the pockets (151a) for accommodating grid positioning plate (152),
The pockets bottom (151a) protrusion is equipped with grid fixed column (151b), and the grid positioning plate (152) is equipped with and grid
The corresponding grid fixation hole (152a) of fixed column (151b).
8. breaker according to claim 6, it is characterised in that: the operating mechanism include U-shaped bar (3), tripping (4),
Lock (5), contact support (6) and support (9), one end of the U-shaped bar (3) to connect with handle (2), the other end and tripping (4)
Connection, the lock (5) connect with tripping (4) hasp, and the lock (5), tripping (4) and contact support (6) to be pivotably attached to
On support (9), support (9) is pivotably attached to shell (1) inside, and the lock (5), tripping (4) are pivotably attached to support (9)
One end, contact support (6) to be pivotably attached to the other end of support (9).
9. breaker according to claim 8, it is characterised in that: it further include tripping coil (12), bimetal leaf (8) and de-
One end of button hook (7), the tripping hook (7) is connect with lock (5), and the other end is oppositely arranged with bimetal leaf (8), described
Operating mechanism is located at the side of shell (1), and tripping coil (12) is located in the middle part of shell (1) to be oppositely arranged with operating mechanism, described
Arc-chutes (15) are set to shell (1) bottom, are located at the lower section of tripping coil (12)；Tripping coil (12) the direction lock (5)
One end is equipped with striker (121), and when short circuit, striker (121) ejection of tripping coil (12) directly opens lock (5)；When
When circuit overloads, bimetal leaf (8) bending touching tripping hook (7) drives tripping (4) and lock (5) to unbutton cutting circuit.
10. breaker according to claim 1, it is characterised in that: the shell (1) sets close to arc-chutes (15) side
There are multiple exhaust outlets, each exhaust outlet is arranged the one of multiple outlet passageways and arc-chutes (15) to shell (1) internal stretch
Side connection, outlet passageway point multilayer are arranged, every layer of multiple outlet passageways of setting.
11. breaker according to claim 10, it is characterised in that: the side of the arc-chutes (15) is parallel to shell
(1) layering is equipped with two layers of outlet passageway layer, respectively upper layer outlet passageway and lower layer's outlet passageway, upper layer outlet passageway and lower layer
Outlet passageway, can by the air-flow that arc-chutes (15) are discharged respectively by being divided into two outlet passageways perpendicular to the partition of shell (1)
To be discharged by the outlet passageway of different level；The exhaust outlet is two, respectively first row port (102) and second exhaust
Mouth (103), first row port (102) are set to the side in shell (1) close to junction block (17), and second exhaust port (103) is set to
Shell (1) is close to bottom side；The upper layer outlet passageway includes the upper partition that shell (1) is extended to arc-chutes (15)
(104), upper layer outlet passageway is divided into the first upper layer outlet passageway (105) by upper partition (104) and the second upper layer outlet is logical
One end of road (106), the first upper layer outlet passageway (105) and the second upper layer outlet passageway (106) extends to arc-chutes (15)
Side, the other end extend at second exhaust port (103)；Lower layer's outlet passageway includes that shell (1) prolongs to arc-chutes (15)
The lower partition (109) of setting is stretched, lower layer's outlet passageway is divided into first lower layer's outlet passageway (107) by lower partition (109)
The side of arc-chutes (15) is extended to one end of second lower layer's outlet passageway (108), first lower layer's outlet passageway (107), separately
One end extends at second exhaust port (102), and second lower layer's outlet passageway (108) one end extends to the side of arc-chutes (15),
The other end extends at second exhaust port (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510606697.1A CN106548912B (en) | 2015-09-22 | 2015-09-22 | Breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510606697.1A CN106548912B (en) | 2015-09-22 | 2015-09-22 | Breaker |
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| Publication Number | Publication Date |
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| CN106548912A CN106548912A (en) | 2017-03-29 |
| CN106548912B true CN106548912B (en) | 2019-08-09 |
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| CN201510606697.1A Active CN106548912B (en) | 2015-09-22 | 2015-09-22 | Breaker |
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| CN (1) | CN106548912B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3985708A1 (en) * | 2020-10-16 | 2022-04-20 | ABB Schweiz AG | Current breaker device |
| EP4312241A1 (en) * | 2022-07-25 | 2024-01-31 | Tyco Electronics Componentes Electromecânicos Lda | High-voltage arc quenching systems and electrical switching devices comprising the same |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109727831A (en) * | 2017-10-31 | 2019-05-07 | 浙江正泰电器股份有限公司 | Breaker |
| CN114050096A (en) * | 2021-11-11 | 2022-02-15 | 西安理工大学 | Miniature circuit breaker arc extinguishing system and have its miniature circuit breaker |
| CN117524757A (en) * | 2024-01-05 | 2024-02-06 | 浙江正泰电器股份有限公司 | Switch contact and plug-in circuit breaker |
Citations (1)
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| CN205158643U (en) * | 2015-09-22 | 2016-04-13 | 浙江正泰电器股份有限公司 | Circuit breaker |
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| DE1707783U (en) * | 1955-07-15 | 1955-09-29 | Voigt & Haeffner Ag | AUTOMATIC INSTALLATION SWITCH WITH MAGNETIC AND THERMAL OVERCURRENT RELEASE. |
| CN201117605Y (en) * | 2007-09-11 | 2008-09-17 | 施耐德电器工业公司 | Breaker |
| ITMI20080285U1 (en) * | 2008-09-09 | 2010-03-10 | Abb Spa | LOW VOLTAGE SWITCH |
| CN102655066A (en) * | 2012-03-31 | 2012-09-05 | 温州奥来电器有限公司 | High-breaking-capacity energy-storage-type biaxial miniature circuit breaker |
| KR101412593B1 (en) * | 2013-05-14 | 2014-06-26 | 엘에스산전 주식회사 | Arc extinguishing mechanism for molded case circuit breaker |
| CN103545150B (en) * | 2013-09-27 | 2017-04-19 | 浙江大华电气有限公司 | Breaker operating mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205158643U (en) * | 2015-09-22 | 2016-04-13 | 浙江正泰电器股份有限公司 | Circuit breaker |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3985708A1 (en) * | 2020-10-16 | 2022-04-20 | ABB Schweiz AG | Current breaker device |
| EP4312241A1 (en) * | 2022-07-25 | 2024-01-31 | Tyco Electronics Componentes Electromecânicos Lda | High-voltage arc quenching systems and electrical switching devices comprising the same |
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| Publication number | Publication date |
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| CN106548912A (en) | 2017-03-29 |
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