CN104241048B - Electromagnetic tripping device and breaker - Google Patents
Electromagnetic tripping device and breaker Download PDFInfo
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- CN104241048B CN104241048B CN201410252142.7A CN201410252142A CN104241048B CN 104241048 B CN104241048 B CN 104241048B CN 201410252142 A CN201410252142 A CN 201410252142A CN 104241048 B CN104241048 B CN 104241048B
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- core
- breaker
- keeper
- control stick
- electromagnetic tripping
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Abstract
The invention discloses an electromagnetic tripping device and a breaker. The electromagnetic tripping device (90) comprises a coil spring (98), a first core (93) and a second core (97). The first core and the second core contact each other and move to keep away from each other through a driving force generated by a coil spring and an electromagnetic force generated by the first core. A core keeping member (96) supports the second core. The core keeping member comprises a far-end end part (96c) and a basic end part comprising a pivoting point (96b). When the far-end end part is applied by a push force, the core keeping member pivots around the pivoting point. The core keeping member pivots, and thus the second core approaches the first core when the first core generates an electromagnetic force. A biasing element (B) is located between the core keeping member and the second core for biasing of the second core towards the first core.
Description
Technical field
The present invention relates to a kind of electromagnetic tripping apparatus and a kind of breaker.
Background technology
Breaker is used for when the circuit for connecting power supply and load is in predetermining circuit condition by power-off in break contact
Road (see, for example Japanese Laid-Open Patent and announce No.2000-231869).Breaker can be such as breaker of plastic casing, earth leakage
Breaker, overvoltage release, under-voltage breaker etc..Breaker of plastic casing ought detect the failure electricity caused by short circuit or overload
Interrupt circuit during stream.Earth leakage circuit breaker interrupt circuit when current leakage is detected.Overvoltage release is when the electricity of circuit
Pressure becomes to be above interrupt circuit during predetermined upper voltage limit.Under-voltage breaker gets lower than predetermined lower bound voltage when the voltage of circuit
When interrupt circuit.It is also known by the Multifunctional breaker that different types of breaker is combined.
General breaker includes：Switching mechanism, it is by the closing of contact and disconnection；Control stick, it is used to manually close
And break contact；And electromagnetic tripping apparatus, it passes through switching mechanism and disconnects contact.
The breaker of 869 ' publications includes electromagnetic tripping apparatus.Connecting rod is projected from the housing of electromagnetic tripping apparatus.
Connecting rod is arranged on and is bound in the housing of the breaker of electromagnetic tripping apparatus.When false voltage is produced, electromagnetic tripping apparatus
Connecting rod is moved, and makes that the interrupt mechanism of breaker threads off.Electromagnetic tripping apparatus include electromagnetic unit.Electromagnetic unit bag
Include：Solenoid, it surrounds reel wound；First core, it extends through the hole of spool；Second core, when electric current flowing is by electricity
During magnetic coil, it is attracted to the magnetic pole of the first core；And coil spring, it drives the magnetic that the second core makes it away from the first core
Pole.
When power is provided to the solenoid in above-mentioned electromagnetic tripping apparatus, the first core magnetically attracts the second core,
So that the core abuts one another.However, present inventor notices that the magnetic force of the first core can be insufficient to assure that the second core
The bias force for overcoming coil spring adjoins therewith.
The content of the invention
It is an object of the present invention to provide a kind of electromagnetic tripping apparatus and for guaranteeing adjoining for the first core and the second core
Breaker.
An aspect of of the present present invention is a kind of electromagnetic tripping apparatus, and the electromagnetic tripping apparatus include：Coil spring；First core,
It is inserted through coil spring；Second core, it passes through coil spring and separates with the first core.First core and the second core are configured to make
The urge that produces by coil spring of the first core and the second core and by the generation of the first core electromagnetic force motion to contact with each other
And move away from each other.Core keeper supports the second core.Core keeper includes distal end and the basic end including pivotal point
Portion.Core keeper is configured to be pivoted around pivotal point when distal end is subject to thrust, and core keeper is pivoted so as to work as
Second core close first core when first core produces electromagnetic force.Biasing element is located between core keeper and the second core, by second
Core is biased towards the first core.
It is an aspect of the present invention to provide a kind of electromagnetic tripping apparatus for adjoining for guaranteeing the first core and the second core.
In particular example, biasing element includes arch leaf spring, and arch leaf spring include being engaged with core keeper two
End and the curved surface bloated towards the second core.
In particular example, core keeper includes that limiting the second core overcomes the bias force applied to the biasing element of the second core
Displacement core position limitation unit.
In particular example, biasing element makes the second core be offset so that the second core constantly contacts the first core and core position
At least one of limiting unit.
In particular example, when the second core moves away from the first core, biasing element makes the second core be offset so that second
Core contacts core position limitation unit, and when the second core contacts the first core, biasing element allows the second core from core position limitation
Partially elastically move away from.
A kind of breaker is another aspect provides, the breaker includes according to one aspect and above-mentioned shows
One or more contact device in example.
In particular example, the breaker includes：Control stick, it is supported for being contacted with fixed contact in moving contact
ON positions and moving contact move away from being pivoted between the OFF of fixed contact；And interrupt mechanism, directly or indirectly
Control stick is connected to, wherein, when control stick is pivoted, interrupt mechanism makes moving contact move away from the first contact.Electromagnetic trip is filled
Put and be configured to make moving contact move away from fixed contact when predetermining circuit condition is detected.
According to embodiment, combination circuit breaker component includes：First breaker, it is the breaker according to another aspect；The
Two breakers, are attached to the first breaker.
In particular example, each and other breaker of breaker include control stick, the control stick of breaker and
Other breaker is combined via connecting rod.
Other aspects and advantages of the present invention will be made apparent from from the description carried out below in conjunction with accompanying drawing, and accompanying drawing is by showing
The mode of example shows the principle of the present invention.
Description of the drawings
By referring to the following description to currently preferred embodiment and accompanying drawing, the present invention and its purpose are better understood
And advantage, in figure：
Fig. 1 is the decomposition diagram of breaker；
Fig. 2 is the left view of the breaker of OFF state；
Fig. 3 is the left view of the breaker of OFF state；
Fig. 4 is the perspective view of electromagnetic tripping apparatus；
Fig. 5 is the decomposition diagram of electromagnetic tripping apparatus；
Fig. 6 is the side view of electromagnetic tripping apparatus；
Fig. 7 is the side view of electromagnetic tripping apparatus；
Fig. 8 is the side view of electromagnetic tripping apparatus；
Fig. 9 is the sectional view of the electromagnetic tripping apparatus intercepted along the line 9-9 in Fig. 6；
Figure 10 is the left view of the breaker of ON states；
Figure 11 is the left view for illustrating the breaker that the moment that under-voltage is threaded off occurs；
Figure 12 is the left view of the breaker when under-voltage occurring and threading off；
Figure 13 is the schematic diagram for illustrating the driver connector and core keeper for contacting with each other；
Figure 14 is to maintain the left view of part；And
Figure 15 is to maintain the sectional view of part；And
Figure 16 A and 16B illustrate the combination circuit breaker component of the breaker including Fig. 1 and other breaker.
Specific embodiment
One embodiment of electromagnetic tripping apparatus and the breaker including the electromagnetic tripping apparatus will now be described.Breaker
It can be the under-voltage breaker 1 of the interrupt circuit when the voltage of circuit gets lower than predetermined lower bound voltage.Under-voltage breaker
Can be used together with different types of breaker, such as when detect by short circuit or overload cause fault current when in power-off
The breaker of plastic casing on road.
As shown in figure 1, under-voltage breaker 1 may include housing 10, it includes the first lid lid 11 and the second lid 12.First lid
11 and second lid 12 can be formed by insulating synthetic resin.The open end 12a of the open end 11a of the first lid 11 and the second lid 12
Connection, to limit inner compartment in the housing 10.
Fig. 1 includes the orthogonal coordinate system in the direction for indicating under-voltage breaker.Also include identical just in other accompanying drawings
Hand over coordinate system.
As shown in Figure 1 to Figure 3, under-voltage breaker includes the terminal unit 13 of externally connected power supply.Terminal unit 13
In may be arranged at the housing 10 of under-voltage breaker.
Control stick 20, indicator 30, interrupt mechanism 40, electromagnetic tripping apparatus 90 and circuit board 14 are arranged in the interior of housing 10
In portion's compartment.Circuit board 14 includes field circuit.Manipulate lever brake 16 and indicator window 17 is formed in the upper surface of housing 10.
As shown in Figures 2 and 3, interrupt mechanism 40 includes cooperating members 41, driver connector 50 (movable junction), thrust
Bar 60 and breech lock 70.Housing 10 is contained in indicator window 17 indicator 30 of the operating condition for indicating under-voltage breaker and refers to
Show device breech lock 80.
Control stick 20 includes pivoting portions 21 and control stick projection 22.Pivoting portions 21 are pivoted around the first pivotal axis 18, institute
Stating the first pivotal axis 18 can be bound to the first lid 11 or be formed on the first lid 11.When manipulation bar projection 22, control stick
20 pivot around the first pivotal axis 18.
Connecting rod 23 extends out from the control stick projection 22 parallel to the first pivotal axis 18.Connecting rod 23 can be bound to separately
The control stick 20A of one breaker 1A, to form the combination circuit breaker component 2 as shown in accompanying drawing 16A and Figure 16 B.Therefore, connecting rod
23 make the control stick 20 of under-voltage breaker 1 pivot together with the control stick 20A of another breaker 1A.In addition, breaker (can be
It is multiple) can be coupled to breaker 1 and/or another breaker 1A.In the illustrated example, control stick projection 22 ought move away from end
ON positions (closing position) is located at during end unit 13, and OFF is located at when motion is near terminal unit 13 and (disconnect position
Put).Control stick 20 is constantly driven away from ON positions for example, by control stick spring 25.In the following description, wherein manipulating
Bar 20 is switched to the direction (clockwise direction in Fig. 2) of the ON positions shown in Fig. 9 from the OFF shown in Fig. 2 and is referred to as ON
Direction, and wherein control stick 20 is referred to as OFF from the direction (counter clockwise direction in Fig. 2) that ON positions are switched to OFF
Direction.
Cooperating members 41 is pivotally supported by the 3rd pivotal axis 43.Cooperating members 41 keeps the cooperation bar 42 that can be metallic rod
One end.The other end of cooperation bar 42 is projected into beyond the second lid 12 by slit 12b, and is bound to the cooperation of another breaker
Part.
Driver connector 50, breech lock 70 and indicator 30 are pivoted around the second pivotal axis 19.Second pivotal axis 19 include by
The two ends of the supporting of housing 10.Can be coil spring recover spring 55 and can be torque spring recovery spring 56 along OFF side
To constantly driving driver connector 50.
Recovery spring 55 and 56 each with the one end for being bound to the first lid 11 and is bound to the another of driver connector 50
One end.Control stick spring 25 constantly drives control stick 20 along OFF directions.It can be the indicator late spring 83 of torque spring
Indicator breech lock 80 is constantly driven along ON directions.
Throw-out lever 60 can be the round metal bars for being bent into U-shaped.Throw-out lever 60 includes operating side 61 and transmission end 62.Operation
End 61 is arranged in the connecting hole 24 of control stick 20.Transmission end 62 is arranged in the He of attachment 51 by driver connector 50
In the connecting hole 54 that the latch 71 of breech lock 70 is formed.In this case, throw-out lever 60 locks (locking shape by breech lock 70
State).In lock-out state, the motion of control stick 20 is transferred to driver connector 50 by throw-out lever 60.
When driver connector 50 is driven by electromagnetic tripping apparatus 90, driver connector 50 and breech lock 70 are relative to that
This pivot, and open connecting hole 54.Then, the transmission end 62 of throw-out lever 60 is moved to outside connecting hole 54.In this case,
Throw-out lever 60 is discharged (unlocked state) from breech lock 70.
4th pivotal axis 82 pivotally supports indicator breech lock 80.Indicator late spring 83 is held along OFF directions
Indicator breech lock 80 is driven continuously.Indicator breech lock 80 includes upper end 81, and the downside of indicator 30 includes copulational protuberance 32.
When the copulational protuberance 32 of the contact pointer 30 of upper end 81 of indicator breech lock 80, indicator 30 is further along OFF directions
Rotation is restricted.Indicator 30 includes limiting the distal end of indicating section 31, the indicating circuit condition of the indicating section 31.
Indicating section 31 includes being divided into the upper surface in two regions.That side closer to control stick 20 of indicating section defines
Normal region 31a, and that side away from control stick 20 of indicating section defines dropout region 31b.Region 31a and 31b
In one expose from indicator window 17.
Housing 10 accommodates circuit board 14.Electromagnetic tripping apparatus 90 are arranged on circuit board 14, with by supplying electrical current to
Solenoid 92 is driving breech lock 70.Circuit board 14 includes stopping excitation electromagnetic tripping apparatus 90 when false voltage is detected
The field circuit of solenoid 92.
With reference to Fig. 4 and Fig. 5, electromagnetic tripping apparatus 90 include spool 91, solenoid 92, fixed core 93, distance piece 110,
Keeper 96, mobile core 97 and coil spring 98.Fixed core 93 and mobile core 97 are used separately as the first core and the second core.
Fixed core 93 can by the plate shape of magnetic material (iron) into.In the illustrated embodiment, fixed core 93 is U-shaped,
And including the first arm or the arm of upper arm 94 and second or underarm 95.Underarm 95 is arranged in the hole of spool 91.One end of spool 91
Including inlet flange 91a, and the other end of spool 91 includes outlet(discharge) flange 91b.The underarm 95 of fixed core 93 is included from spool
The distal end that 91 outlet(discharge) flange 91b comes out.Coil spring 98 is maintained on the upper arm 94 of fixed core 93.
As shown in Figure 14 and Figure 15, keeper 96 includes core storage compartments 96a and keeper pivotal axis 96b.Core storage every
Between 96a be configured to accommodate can be magnetic sheet mobile core 97.Keeper pivotal axis 96b is arranged in one end of core storage compartments 96a
On.Keeper pivotal axis 96b can be referred to as pivotal point.Keeper 96 can be synthetic resin component.
Core storage compartments 96a include：Diapire 101, it is formed by elongated quadrangular plate；And first to fourth side wall
102-105, it surrounds diapire 101, and orthogonally extends with diapire 101.The first side wall 102 is basically parallel to second sidewall 103.
3rd side wall 104 is basically parallel to the 4th side wall 105.3rd side wall 104 and the 4th side wall 105 substantially with the first side wall 102 and
Second sidewall 103 is orthogonal.
Core storage compartments 96a include opening 106.Mobile core 97 contacts the arm 94 and 95 of fixed core 93 by opening 106.Protect
Gripping member 96 includes check plate 107 and 108.Check plate 107 and 108 partially turns off opening 106.In the illustrated example, stop
Plate 107 and 108 is located in the Part I of the opening 106 in core storage compartments 96a.Check plate 107 with the first side wall 102 and
The angle that 3rd side wall 104 intersects is formed.Angle shape of the check plate 108 to intersect with the side wall 104 of second sidewall 103 and the 3rd
Into.Check plate 107 and 108 is each spaced apart with the 4th side wall 105.Preferably, check plate is spaced apart from each other with check plate 107
And form slit between 108.Slit is configured to accommodate an arm (for example, upper arm 94) of fixed core.In one example, it is allowed to
Mobile core 97 contacts the underarm 95 of fixed core 93, the Part II by the Part II of the opening 106 in core storage compartments 96a
It is the part in addition to Part I of opening 106.
Keeper pivotal axis 96b extends from the first side wall 102 and second sidewall 103 towards outside.Keeper pivotal axis 96b
Rotatably supported by outlet(discharge) flange 91b.Keeper 96 is pivoted around keeper pivotal axis 96b.This causes mobile core
97 mobile core 97 contact position and the mobile core 97 of the distal surface (magnetic pole surfaces) of two arms 94 and 95 of fixed core 93 and
Move between the detached position of distal surface (magnetic pole surfaces) of two arms 94 and 95 of fixed core 93.
With reference to Fig. 6 to Fig. 8, projection 96c is from the distal end of keeper 96 or keeper 96 and keeper pivotal axis
96b relative end projects.When keeper 96 is pivoted around keeper pivotal axis 96b, projection 96c pushes driver connector 50
Copulational protuberance 53 and driver connector 50 is rotated along ON directions.
With reference to Figure 15, biasing element B is arranged in mobile core 97 and diapire 101 in core storage compartments 96a of keeper 96
Between.Biasing element B makes mobile core 97 bias towards fixed core 93.In the illustrated example, biasing element B is arch leaf spring,
Its curved surface for including engage with core keeper two ends and bloating towards the second core 97.
The mobile core 97 that the contact of check plate 107 and 108 is biased by biasing element B, and limit motion or the position of mobile core 97
Move.Biasing element B is separated with limiting mobile core 97 with the cooperation of check plate 107 and 108 from core storage compartments 96a.The He of check plate 107
108 are used as core position limitation unit.
Biasing element B biases mobile core 97, so that mobile core constantly contacts check plate 107 and 108 or fixed
Core 93.For example, when mobile core 97 is separated with fixed core 93, biasing element B biases mobile core 97, so that mobile core 97 connects
Tactile check plate 107 and 108.When mobile core 97 contacts fixed core 93, biasing element B allows mobile core 97 flexibly from check plate
107 and 108 move away from.
With reference to Fig. 8 and Fig. 9, distance piece 110 is bound to fixed core 93, to reduce the outer surface and coil spring of fixed core 93
Gap between 98 in-profile.Distance piece 110 includes the axially extending multiple elongated members 111 along coil spring 98
With 112.In the illustrated example, elongated member 111 and 112 is that two facing with each other and along fixed core 93 upper arm 94 extend
Plate.Bridging component 113 connects elongated member 111 and 112.The contact with the back side 93a of fixed core 93 of bridging component 113 will
Distance piece 110 is axially positioned relative to fixed core 93.The shape and size of distance piece 110 are set to not produce obstruction coil bullet
The frictional force of expansion and the contraction of spring 98.In gap between the outer surface of fixed core 93 and the in-profile of coil spring 98
The arrangement of distance piece 110 prevent or limit the distortion and bending of coil spring 98.This stabilizes the urge of coil spring 98,
And stabilize performance or the magnetic field of electromagnetic tripping apparatus.
The operation of under-voltage breaker is described now with reference to Fig. 2, Fig. 3 and Figure 10 to Figure 12.To first describe and work as from Fig. 2
OFF state under-voltage breaker when switching to the ON states of Figure 10 operation.
When control stick 20 is switched to ON positions (Figure 10) along ON directions from OFF (Fig. 2), throw-out lever 60 is pushed and driven
Attachment 51 of dynamic device connector 50 and along ON directions pivot drives connector 50.
The straight line that first pivotal axis 18 of control stick 20 is connected with the transmission end 62 of throw-out lever 60 is referred to as into handoff boundary
Line.As control stick 20 is pivoted along ON directions, when the operating side 61 of throw-out lever 60 exceeds handoff boundary line, throw-out lever 60
Transmission end 62 stops when attachment 51 are pushed against.Here, control stick 20 and throw-out lever 60 are maintained on ON positions,
And under-voltage breaker remains ON.
The breech lock 70 pivoted by late spring 34 is switched to the position at the transmission end 62 of the contact throw-out lever 60 of breech lock 70.Drive
Dynamic device connector 50 promotes the bonding part 33 of indicator 30.Indicator 30 is pivoted along ON directions and move to instruction
Reset position.In this case, indicator late spring 83 drives indicator breech lock 80 and makes it move to indicator breech lock
The position of 30 breech lock indicators 30.Additionally, cooperating members 41 is pivoted as driver connector 50 is pivoted along ON directions, and make
The cooperating members of other breakers is moved together with the bar 42 that cooperates.If voltage is normal under ON states, field circuit is by electric current
Supply to the solenoid 92 of electromagnetic tripping apparatus 90.So, mobile core 97 is attracted to into fixed core 93.Keeper 96 overcomes line
The urge of coil spring 98 is switched to ON positions.So, keeper 96 distal end projection 96c and driver connector
50 separate.
The operation of the under-voltage breaker when OFF state is switched to from ON states will now be described.
When control stick 20 is switched to OFF (Fig. 2) along OFF directions from ON positions (Figure 10), throw-out lever 60 is pulled
Breech lock 70.Breech lock 70 is so set to overcome the urge of late spring 34 to pivot and open connecting hole 54 towards upside.
Driver connector 50 is by carrying out the OFF directions pivot of the urge of self- recoverage spring 55 and 56 along control stick 20
Turn, and when the spacer pin 99 for moving to engaging hole 12c with engaging hole 11b for being fixed to the first lid 11 and the second lid 12 is contacted
Stop.Engaging hole 12c of engaging hole 11b of the first lid 11 and the second lid 12 is formed in and is pivoted with keeper as keeper 96
Near projection 96c of axle 96b relative end.Driver connector 50 includes the distal portions 57 contacted with spacer pin 99.Far
End part 57 is adjacent to the copulational protuberance 53 of the driver connector 50 for promoting keeper 96.Therefore, driver connection can be limited
The expansion of part 50.Spacer pin 99 is rigid member, and the higher rigidity of the rigidity with ratio such as keeper 96.In preferred exemplary
In, keeper 96 is resin component element, and spacer pin 99 is hardware.Therefore, although by recovering the drive that spring 55 and 56 is driven
Dynamic device connector 50 contacts and promotes spacer pin 99, but eliminate or reduces the fragmentation or abrasion of spacer pin 99.
The projection 72 of breech lock 70 overcomes urge to promote cooperating members 41 and cooperating members 41 is pivoted along OFF directions.Breech lock
Spring 34 drives indicator 30 and indicator 30 is pivoted along OFF directions.When the contact pointer breech lock 80 of copulational protuberance 32
During upper end 81, indicator 30 stops.Here, the normal region 31a of indicating section 31 comes out from indicator window 17.
When driver connector 50 is pivoted along the OFF directions of control stick 20, copulational protuberance 53 is remote by keeper 96
Projection 96c on the end of end is pushed to the position shown in Fig. 2.As described above, driver connector 50 contacts spacer pin 99 and limits
Make further moving along the OFF directions of control stick 20.Therefore, even if coil spring 98 makes keeper 96 around keeper pivot
Rotating shaft 96b along control stick 20 ON directions (clockwise direction in Fig. 2) pivot when, the copulational protuberance of driver connector 50
53 pivots for also limiting keeper 96.
Here, as shown in figure 13, projection 96c in keeper 96 and driver connector 50, on keeper 96
ON directions side side surface S1 or contact surface and driver connector 50 in copulational protuberance 53 distal surface S2 each other
Contact.Here, side surface S1 and distal surface S2 are essentially parallel from one to another.Additionally, surface S1 and S2 is perpendicular to making the edge of keeper 96
The urge for the coil spring 98 of the ON directions pivot of control stick 20 extends.In fig. 13, driving parallel to coil spring
Angle, θ between plane RS and side surface S1 of power is 90 degree.
When keeper 96 is driven while contacting with copulational protuberance 53 by coil spring 98, keeper 96 is fixed,
And mobile core 97 is maintained at the position of the magnetic pole surfaces of the contact fixed core 93 of mobile core 97.
In this case, biasing element B drives mobile core 97 towards fixed core 93.It further ensures that mobile core
The magnetic pole surfaces of 97 contact (adjoining) fixed cores 93.
Will now be described when electromagnetic tripping apparatus 90 work and switch to under-voltage breaker from ON states (Figure 10)
Operation during trip status (Figure 12).Figure 11 shows the moment that under-voltage is threaded off.
In ON states (Figure 10), (owe less than the predetermined set value lower than rated voltage when field circuit detects voltage
Voltage status) when, field circuit closes the switch for being connected serially to solenoid 92, so that under-voltage circuit breaker tripping.
This stopped electric current to the supply of solenoid 92, and the electromagnetism eliminated between fixed core 93 and mobile core 97 draws
Power.As a result, as shown in figure 11, when the urge of coil spring 98 makes keeper 96 pivot along ON directions, keeper 96
Distal end surface or contact surface 96e contact against (abut against) breech lock 70 so that breech lock 70 is along OFF directions pivot
Turn.Additionally, the transmission end 62 of throw-out lever 60 moves away from from latch 71, and move to outside connecting hole 54.
Because the transmission end 62 of throw-out lever 60 is moved to outside connecting hole 54, as shown in figure 12, therefore, no longer by throw-out lever
The driver connector 50 of 60 supportings is driven by recovery spring 55 and 56 and is switched to OFF along OFF directions.Additionally, door bolt
Lock 70 projection 72 by cooperating members 41 towards upside push, and cooperate bar 42 drive other breakers interrupt mechanism so that
Interrupt circuit break contact.So, stopped and supply electrical current to the load for being connected to other breakers, so as to protect load
Device.Keeper 96 is pivoted by the bias force of coil spring 98 along the ON directions of control stick 20.However, recovering the He of spring 55
56 urge is set to the urge more than coil spring 98.Therefore, when the engagement that projection 96c contacts driver connector 50 is dashed forward
When playing 53, control stick 20 can not further be pivoted along the ON directions of control stick 20.
When driver connector 50 is pivoted by recovering the urge of spring 55 and 56 along the OFF directions of control stick 20
When, the copulational protuberance 53 of driver connector 50 promotes projection 96c of keeper 96.As a result, keeper 96 is along control stick 20
OFF directions position shown in Figure 12 is switched to from the position shown in Figure 11.When driver connector 50 contacts spacer pin 99,
Limit the moving along OFF directions of control stick 20.Therefore, even if keeper 96 is pivoted by coil spring 98 around keeper
Axle 96b is pivoted along the ON directions (clockwise direction in Figure 12) of control stick 20, the copulational protuberance 53 of driver connector 50
Also limit the pivot of keeper 96.
As shown in figure 13, as the distal surface S2 of the side surface S1 contact drivers connector 50 of keeper 96, side table
Face S1 is parallel to distal surface S2.Two surfaces S1 and S2 are each perpendicular to make keeper 96 pivot along the ON directions of control stick 20
Coil spring 98 drive direction extension.
When keeper 96 is driven while contacting with copulational protuberance 53 by coil spring 98, keeper 96 is consolidated
Fixed and mobile core 97 is maintained at the position of the magnetic pole surfaces for making the contact fixed core 93 of mobile core 97.
In this case, biasing element B drives mobile core 97 towards fixed core 93.It further ensures that mobile core 97
The magnetic pole surfaces of contact (adjoining) fixed core 93.
Projection 96c of keeper 96 promotes indicator breech lock 80 and makes it pivot (with reference to Fig. 3) to unlock along OFF directions
Indicator 30.When 30 non-locking of indicator, indicator 30 is subject to the urge of late spring 34 and pivots along OFF directions.
The dropout region 31b of indicating section 31 comes out from indicator window 17.Then, the drive of the manipulated bar spring 25 of control stick 20
Plan power, and pivot along OFF directions.When control stick reaches OFF, the transmission end 62 of throw-out lever 60 is arranged on connecting hole 54
In and move to the position that engages with latch 71 of transmission end 62.Here, the transmission end 62 of throw-out lever 60 is arranged on by driving
In the connecting hole 54 that device connector 50 and breech lock 70 are surrounded.Therefore, when control stick 20 is switched to ON positions along ON directions, obtain
Obtain the state shown in Figure 10.
The advantage of embodiment will now be described.
(1) electromagnetic tripping apparatus 90 include biasing member B, and it biases mobile core 97 towards fixed core 93.Which ensure that
The contact with fixed core 93 of mobile core 97.
(2) in preferred exemplary, biasing element B is arch leaf spring.Leaf spring can be easily mounted at mobile core 97 and keep
Between core storage compartments 96a of part 96.Additionally, leaf spring is used in core storage compartments 96a for accommodating mobile core 97 and keeper 96
Between biasing element B it is space-minimized.When the size of keeper 96 is reduced, this is preferred.
(3) in preferred exemplary, keeper 96 includes check plate 107 and 108.Check plate 107 and 108 is first with by biasing
The mobile core 97 of part B biasings is contacted, and limits the motion or displacement of mobile core 97.
(4) in reference to example, cut next resin plate to bias mobile core 97 from a part for keeper 96.In ginseng
In examining example, the bias force of resin plate reduces within the relatively short time.In preferred exemplary, keeper 96 is formed by resin,
And biasing element B is the higher hardware of rigidity of ratio of rigidity keeper 96.Therefore, biasing can be maintained within the long time
The bias force of element B.This allows mobile core 97 and fixed core 93 to keep contact in a long time.
Can be such as following modification above example.
The quantity of check plate 107 and 108 and position can change.For example, as opening 106 Part I replacement or remove
Outside this, check plate 107 and 108 may be arranged in the Part II of opening 106.
In the embodiment above, under-voltage breaker is used as breaker.As long as however, breaker includes electromagnetic tripping apparatus
90 other breakers that can use such as overvoltage release.
Above description is intended to show that and unrestricted.For example, above-mentioned example (or its one or more aspect) can be each other
It is used in combination.Such as other embodiments can be used after embodiment of above is browsed by those of ordinary skill in the art.Separately
Outward, in above specific embodiment, various features can combination with one another simplifying the disclosure.This is not necessarily to be construed as failed call guarantor
The disclosed feature of shield is necessary for any claim.Additionally, subject of the present invention content can be open less than concrete
Embodiment all features in find.Therefore, the claims herein is included in a specific embodiment, each claim
Item itself can be used as a detached embodiment.The scope of the present invention should make it with reference to claim and the claim
The four corner for possessing the equivalent of right determines.
Claims (9)
1. a kind of electromagnetic tripping apparatus, including：
Coil spring；
First core, it is inserted through coil spring；
Second core, it passes through coil spring and separates with the first core, wherein, the first core and the second core be configured such that the first core and
Urge that second core is produced by coil spring and the electromagnetic force that produced by the first core are moving to contact with each other and remote each other
From；
Core keeper, its second core of supporting, wherein, core keeper includes distal end and the basic end including pivotal point, core
Keeper is configured to be pivoted around pivotal point when distal end is subject to thrust, and core keeper is pivoted so that when the first core
Second core close first core when producing electromagnetic force；And
Biasing element, it is located between core keeper and the second core, the second core is biased towards the first core.
2. electromagnetic tripping apparatus according to claim 1, it is characterised in that
Biasing element includes arch leaf spring, and
The curved surface that arch leaf spring includes the two ends engaged with core keeper and bloats towards the second core.
3. electromagnetic tripping apparatus according to claim 1, it is characterised in that core keeper includes core position limitation unit,
The core position limitation unit overcomes the applying of biasing element to the bias force of the second core to limit the displacement of the second core.
4. electromagnetic tripping apparatus according to claim 3, it is characterised in that biasing element makes the second core be offset so that
Two cores constantly contact at least one of the first core and core position limitation unit.
5. electromagnetic tripping apparatus according to claim 4, it is characterised in that
When the second core moves away from the first core, biasing element makes the second core be offset so that the second core contacts core position limitation list
Unit, and
When the second core contacts the first core, biasing element allows the second core flexibly to move away from from core position limitation part.
6. a kind of breaker, it includes the electromagnetic tripping apparatus according to any one of claim 1 to 5.
7. breaker according to claim 6, it is characterised in that include：
Control stick, its ON position for being supported for being contacted in moving contact and fixed contact moves away from fixed touching with moving contact
Pivot between the OFF of point；And
Interrupt mechanism, is directly or indirectly attached to control stick, wherein, when control stick is pivoted, interrupt mechanism transports moving contact
Move away from fixed contact,
Wherein, electromagnetic tripping apparatus are configured to make moving contact move away from fixed touching when predetermining circuit condition is detected
Point.
8. a kind of combination circuit breaker component, including：
First breaker, it is breaker according to claim 6；
Second breaker, is attached to first breaker.
9. combination circuit breaker component according to claim 8, it is characterised in that
Each of first breaker and the second breaker includes control stick；And
The control stick of the first and second breakers is combined via connecting rod.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013123032A JP6074720B2 (en) | 2013-06-11 | 2013-06-11 | Electromagnetic trip device and circuit breaker |
| JP2013-123032 | 2013-06-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104241048A CN104241048A (en) | 2014-12-24 |
| CN104241048B true CN104241048B (en) | 2017-04-26 |
Family
ID=52140379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410252142.7A Expired - Fee Related CN104241048B (en) | 2013-06-11 | 2014-06-09 | Electromagnetic tripping device and breaker |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6074720B2 (en) |
| CN (1) | CN104241048B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036990B (en) * | 2018-08-20 | 2024-03-19 | 厦门大恒科技有限公司 | Hydraulic electromagnetic trip switch and circuit breaker |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2562348Y (en) * | 2002-08-01 | 2003-07-23 | 严洪启 | Minimum voltage releaser of circuit breaker |
| CN1514458A (en) * | 2002-12-14 | 2004-07-21 | Lg产电株式会社 | Auxiliary equipment used on manual electric machine actuator |
| CN201975350U (en) * | 2011-04-25 | 2011-09-14 | 浙江天正电气股份有限公司 | Small-sized circuit breaker with function of undervoltage and overvoltage protection |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5333787Y2 (en) * | 1973-05-15 | 1978-08-19 | ||
| JPS51130862A (en) * | 1975-05-10 | 1976-11-13 | Fuji Electric Co Ltd | Enclosed electromagnet |
| JPS53148168U (en) * | 1977-04-27 | 1978-11-21 | ||
| JPS568048U (en) * | 1979-06-30 | 1981-01-23 | ||
| JP2000231869A (en) * | 1998-12-10 | 2000-08-22 | Fuji Electric Co Ltd | Circuit breaker |
| DE10144440C1 (en) * | 2001-09-06 | 2002-08-29 | Siemens Ag | Switching contact arrangement with a device for amplifying a contact force acting between switching contacts |
| JP5971585B2 (en) * | 2012-04-09 | 2016-08-17 | パナソニックＩｐマネジメント株式会社 | Circuit breaker external trip device |
| JP2014199756A (en) * | 2013-03-29 | 2014-10-23 | パナソニック株式会社 | Contact apparatus and circuit breaker |
-
2013
- 2013-06-11 JP JP2013123032A patent/JP6074720B2/en not_active Expired - Fee Related
-
2014
- 2014-06-09 CN CN201410252142.7A patent/CN104241048B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2562348Y (en) * | 2002-08-01 | 2003-07-23 | 严洪启 | Minimum voltage releaser of circuit breaker |
| CN1514458A (en) * | 2002-12-14 | 2004-07-21 | Lg产电株式会社 | Auxiliary equipment used on manual electric machine actuator |
| CN201975350U (en) * | 2011-04-25 | 2011-09-14 | 浙江天正电气股份有限公司 | Small-sized circuit breaker with function of undervoltage and overvoltage protection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104241048A (en) | 2014-12-24 |
| JP6074720B2 (en) | 2017-02-08 |
| JP2014241226A (en) | 2014-12-25 |
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