CN106971921B - Breaker - Google Patents
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- Publication number
- CN106971921B CN106971921B CN201710249087.XA CN201710249087A CN106971921B CN 106971921 B CN106971921 B CN 106971921B CN 201710249087 A CN201710249087 A CN 201710249087A CN 106971921 B CN106971921 B CN 106971921B
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- China
- Prior art keywords
- driving wheel
- moving contact
- frame body
- contact
- body portion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
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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
- H01H73/04—Contacts
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Breakers (AREA)
Abstract
The present invention provides a kind of breaker, including shell, handle, connecting rod, driving wheel, tripping frame, the first return unit, the second return unit, the first static contact, the second static contact, the first moving contact and the second moving contact.Handle is rotatably installed in shell；One end of connecting rod connects handle, and the other end and driving wheel, tripping frame are engaged.First return unit one end connects shell, and the other end connects driving wheel.Second return unit one end connects driving wheel, other end connection tripping frame.Driving wheel includes that driving wheel ontology, first rotating shaft and the second shaft, driving wheel are rotatably installed in shell by first rotating shaft, and frame of threading off is rotatably arranged in driving wheel by the second shaft.First static contact and the second static contact are fixedly arranged in shell respectively；First moving contact and the second moving contact are rotatably installed on driving wheel, and the first moving contact is corresponding with the first static contact, and the second moving contact is corresponding with the second static contact.Breaker structure of the present invention is simple, easy to assembly, at low cost.
Description
Technical field
The present invention relates to low-voltage electrical apparatus protection technique field more particularly to a kind of breakers.
Background technique
Breaker is a kind of electric current that can be closed, carry and cut-off under normal loop condition, and can be in the defined time
Interior carrying and the switching device for cut-offfing the electric current under abnormal loop condition.The civilian breaker that high building, enterprise, civil buildings use
It is generally divided into: 1P, 1P+N and 2P three types.Wherein 1P breaker is single-pole circuit breaker, has overload and short-circuit protection function,
Only protect phase line.1P+N breaker is monopole+N breaker, while controlling phase line, middle line, but only phase line have overload and it is short
Road defencive function, and N extremely corresponding middle line only there is opening and closing function not have overload and short-circuit protection function.2P breaker
It is single-phase 2 pole breaker, while controls phase line and middle line, and all have the function of thermal tripping.Existing 1P+N breaker is often
By the 2P breaker of 2P breaker wherein a pole removal thermal tripping and magnetic tripping function, volume is larger, and structure is complicated, and assembly is tired
Difficulty, and it is at high cost.
Summary of the invention
For the present invention in order to overcome the above problem present in existing technology, it is identical as 1P breaker to provide a kind of volume,
Using function breaker identical with 1P+N breaker, structure is simple, easy to assembly, and breaker at low cost.
To achieve the goals above, the present invention provides a kind of breaker, comprising: shell, handle, connecting rod, driving wheel, tripping
Frame, the first return unit, the second return unit, the first static contact, the second static contact, the first moving contact and the second moving contact；It is described
Handle is rotatably installed in the shell；One end of the connecting rod connects the handle, the other end and the driving wheel, institute
Tripping frame is stated to be engaged to push the driving wheel and the tripping frame to rotate；First return unit one end connects the shell
Body, the other end connect the driving wheel；Second return unit one end connects the driving wheel, and the other end connects the tripping
Frame；The driving wheel includes driving wheel ontology, first rotating shaft and the second shaft, and the first rotating shaft and the second shaft are set to driving
Ontology is taken turns, the driving wheel is rotatably installed in the shell by the first rotating shaft, and the tripping frame passes through described
Second shaft is rotatably arranged in the driving wheel；First static contact and second static contact are fixedly arranged on the shell respectively
In vivo；First moving contact and the second moving contact are rotatably installed on the driving wheel, first moving contact with it is described
First static contact is corresponding, and second moving contact is corresponding with second static contact.
In one embodiment of the invention, the driving wheel further includes the first fitting groove and the second fitting groove, first assembly
Slot and the second fitting groove are respectively arranged on the front and rear sides of the driving wheel ontology, move for installing the first moving contact and second respectively
Contact.
In one embodiment of the invention, the first installation axle is equipped in the first fitting groove, first moving contact one end is equipped with
First hole, first installation axle are inserted into the first hole so that first moving contact is rotatably installed on driving wheel；Second
The second installation axle is equipped in fitting groove, second moving contact one end is equipped with the second hole, and second installation axle is inserted into the second hole
It is interior second moving contact is rotatably installed on driving wheel.
In one embodiment of the invention, driving wheel ontology side is equipped with hook, for connecting the first return unit.
In one embodiment of the invention, the tripping frame includes the first frame body portion, hook portion and locking part, first frame body
Portion is rotatably arranged in the driving wheel by second shaft, and the hook portion is set to first frame body portion side and direction
The bending of first frame body portion, the locking part are set to the hook portion and protrude towards first frame body portion, the first
Body portion, hook portion and locking part surround the first bayonet；The driving wheel ontology is equipped with the second bayonet；First bayonet and the second bayonet group
At a slot, one end of the connecting rod is inserted into the slot of the first bayonet and the second bayonet composition.
In one embodiment of the invention, first frame body portion includes the first part being connected and second part, described
First part, the second part are connected with the hook portion, and the hook portion is bent towards the second part, the first part
Equipped with first shaft hole, in one end insertion first shaft hole of second shaft, one end connection described second of the second part
Return unit.
In one embodiment of the invention, the tripping frame further includes the second frame body portion, described in the connection of second frame body portion
Hook portion and first frame body portion, second frame body portion are oppositely arranged with first frame body portion, and the driving wheel is set to the
Between one frame body portion and the second frame body portion；Second frame body portion includes Part III, Part IV, Part V and the 6th
Point；Part III is oppositely arranged with hook portion, and Part III is connected with the side of hook portion, and Part IV is opposite with first part to be set
It sets, Part V and second part are oppositely arranged, one end connection Part III and Part IV of Part V, Part V
The other end connects Part VI, and the both ends of Part VI are separately connected Part III and Part V, and the Part IV is equipped with
The other end of second axis hole, second shaft is inserted into the second axis hole.
It further include the first limit elastic component in one embodiment of the invention, the both ends difference of the first limit elastic component
Connect first moving contact and the driving wheel ontology.
It further include the second limit elastic component in one embodiment of the invention, the both ends difference of the second limit elastic component
Connect second moving contact and the driving wheel ontology.
It further include thermal trip and the pole N conducting system in one embodiment of the invention, the thermal trip includes bimetallic
Piece, double golden supports, release lever, first are flexible coupling and the first arc striking piece, and the bimetal leaf is supported to be installed on shell by double gold
Interior, release lever one end connection tripping frame, the other end and bimetal leaf cooperate, and the bimetal leaf is flexible coupling company by described first
First moving contact is connect, the first arc striking piece connection double gold are supported；The pole N conducting system includes to be connected
Two are flexible coupling and the second arc striking piece, and second, which is flexible coupling, connects the second moving contact.
Compared with prior art, beneficial effects of the present invention: breaker of the present invention is 1P+N type breaker, the first moving contact
The on-off of control phase line, the second moving contact and the contact of the second static contact or separation control middle line are contacted or separated with the first static contact
On-off.The first moving contact and the second moving contact is arranged in the two sides of driving wheel ontology in breaker of the present invention, simplifies structure, drops
The low volume of 1P+N type breaker, and assemble very convenient, assembly efficiency can be greatly improved, is reduced costs.
Detailed description of the invention
Fig. 1 is that first moving contact and the first static contact are in discrete state in one embodiment of breaker of the present invention, and second is dynamic
Contact and the second static contact are in the front view of discrete state.
Fig. 2 is the partial enlarged view in Fig. 1 at B.
Fig. 3 is the rear view of Fig. 1.
Fig. 4 is that the first moving contact of breaker of Fig. 1 and the first static contact just contact, and the second moving contact and the second static contact are rigid
Front view when contact.
Fig. 5 is the schematic diagram when circuit breaker handle of Fig. 1 turns to the other side.
Fig. 6 is the view of another cutting plane of breaker of Fig. 5.
Fig. 7 is the isometric front view of the intracorporal Each part of shell.
Fig. 8 is the rear isometric view of the intracorporal Each part of shell.
Fig. 9 is the perspective view of magnetictrip and the first static contact.
Figure 10 is the cross section view of magnetictrip and the first static contact.
Figure 11 is the schematic diagram of the second static contact.
Figure 12 is the connection schematic diagram of the first moving contact and thermal trip.
Figure 13 is the connection schematic diagram of the second moving contact Yu the pole N conducting system.
Figure 14 and Figure 15 is the structural schematic diagram of two sides of driving wheel.
Specific embodiment
With reference to the accompanying drawing, by specific embodiment, clear, complete description is carried out to technical solution of the present invention.
For ease of description, each component position shown in Fig. 1 is known as in situ, is transformed to process in situ by other positions and claims
To reset." left side " described in the text " right side " "upper", "lower" are left, right, top, the lower section for corresponding figure respectively,
Only to facilitate the working principle to breaker is described in detail, it is not intended to limit the invention.
Please refer to Fig. 1, shown in 3, the present invention provides a kind of breaker, comprising: shell 1, handle 2, connecting rod 3, driving wheel 4,
Tripping frame 5, the first return unit 6, the second return unit 7, the first static contact 8, the second static contact 9, the first moving contact 10 and second are dynamic
Contact 11.
The handle 2 is rotatably installed in the shell 1, and the center of rotation of the handle 2 is equipped with torsional spring 21, handle
2 rotate after the reaction force of torsional spring handle 2 can be automatically returned to original position.One end of the connecting rod 3 connects the handle
2, the other end and the driving wheel 4, the tripping frame 5 are engaged to push the driving wheel 4 and the tripping frame 5 to rotate.
It is engaged and refers to that mobile connecting rod 3 can push 5 turns of frame of driving wheel 4 and tripping when connecting rod 3 contacts driving wheel 4 and tripping frame 5
It is dynamic.The side that connecting rod 3 and driving wheel 4, tripping frame 5 contact is arcwall face.
Described first return unit, 6 one end connects the shell 1, and the other end connects the driving wheel 4, with to driving wheel 4 into
Row resets.In the present embodiment, the first return unit 6 be extension spring, but not limited to this, be also possible to compressed spring, when for compress
When spring, installation site and Fig. 1 different from.When the driving wheel 4 rotates clockwise and stretches the first return unit 6, first
Return unit 6 generates the trend that reaction force makes the driving wheel 4 there are turning anticlockwise to original position.It refers in Fig. 1 clockwise
Direction indicated by arrow A is counterclockwise direction in contrast to this, hereafter consistent with this.Second return unit, 7 one end connection
The driving wheel 4, the other end connect the tripping frame 5.Second return unit 7 is compressed spring, but not limited to this.
The driving wheel 4 includes driving wheel ontology 41, first rotating shaft 42 and the second shaft 43.The first rotating shaft 42 and
Two shafts 43 are set to driving wheel ontology 41.The driving wheel 4 is rotatably installed on the shell 1 by the first rotating shaft 42
It is interior.The tripping frame 5 is rotatably arranged in the driving wheel 4 by second shaft 43.First static contact 8 and described
Second static contact 9 is fixedly arranged on respectively in the shell 1.First moving contact 10 and the second moving contact 11 are rotatably installed on
The driving wheel 4, first moving contact 10 is corresponding with first static contact 8, second moving contact 11 and described second
Static contact 9 is corresponding, and the first moving contact 10 and the second moving contact 11 is driven to rotate when driving wheel 4 rotates, the first moving contact 10 with
The contact of first static contact 8 or separation, the second moving contact 11 are contacted or are separated with the second static contact 9.
Drive connecting rod 3 mobile when the handle 2 rotates clockwise, since connecting rod 3 and driving wheel 4, the tripping contact of frame 5 are matched
It closes to rotate the driving wheel 4 and the tripping frame 5, and then drives 11 turns of first moving contact 10 and the second moving contact
It is dynamic, so that the first moving contact 10 and the contact of the first static contact 8 or separation, the second moving contact 11 and the second static contact 9 contact or divide
From.Breaker of the present invention directly relies on the effect of driving wheel 4 and frame 5 of threading off, that is, may make the first moving contact 10 and the first stationary contact
First 8 contact or separation, the second moving contact 11 and the contact of the second static contact 9 or separation, simplify structure, and assembly is very convenient, can
To greatly improve assembly efficiency, and reduce costs.
Please refer to Figure 14, shown in 15,41 side of driving wheel ontology is equipped with hook 44, for connecting the first return unit 6.
When first return unit 6 is installed, it is only necessary to the hook 44 be caught in one end of the first return unit 6, mounting means is very simple
It is convenient.The driving wheel 4 further includes the first fitting groove 45 and the second fitting groove 46.First fitting groove 45 and the second fitting groove 46
The front and rear sides of the driving wheel ontology 41 are respectively arranged on, for installing the first moving contact 10 and the second moving contact 11 respectively.Tool
For body, the first installation axle 451 is equipped in the first fitting groove 45, described first moving contact, 10 one end is equipped with the first hole 101, described
First moving contact 10 is rotatably installed on driving wheel 4 in the first hole of first installation axle 451 insertion 101.Second dress
The second installation axle 461 is equipped in slot allocation 46, described second moving contact, 11 one end is equipped with the second hole 111, second installation axle 461
It is inserted into the second hole 111 so that second moving contact 11 is rotatably installed on the driving wheel 4.First installation axle
451 and second installation axle 461 be symmetrical arranged, structure is more stable.
As shown in Figs 1-4, the tripping frame 5 includes the first frame body portion 51, hook portion 510 and locking part 53.The first
Body portion 51 is rotatably arranged in the driving wheel 4 by second shaft 43, and the hook portion 510 is set to first frame body portion
It 51 sides and is bent towards first frame body portion 51, the locking part 53 is set to the hook portion 510 and towards the first
Body portion 51 is protruded, and first frame body portion 51, hook portion 510 and locking part 53 surround the first bayonet 501.The driving wheel ontology 41
Equipped with the second bayonet 502.First bayonet 501 and the second bayonet 502 form a slot 503, one end insertion first of the connecting rod 3
In the slot 503 of bayonet 501 and the second bayonet 502 composition, one end of the connecting rod 3 can be in the first bayonet 501 and the second bayonet
Movable in slot 503 between 502, when handle 2 rotates clockwise, one end of the connecting rod 3 is in the first bayonet 501 and second
Movable to the right in slot 503 between bayonet 502,53 locking of locking part lives connecting rod 3, prevents connecting rod 3 from skidding off from the second bayonet 502.
When breaker is in state shown in Fig. 5, the reaction force of the first return unit 6 is so that handle 2 is made to turn clockwise
Dynamic power, this power rotated clockwise is greater than torsional spring and is applied to the restoring force counterclockwise on handle 2, but handle 2 at this time
Being blocked by shell 1 cannot rotate clockwise, at this point, one end of connecting rod 3 is against the side wall of the locking part 53 and described second
The inner wall of bayonet 502, locking part 53 have blocked the opening of the second bayonet 502, prevent one end of connecting rod 3 from the second bayonet 502
Opening remove, locking part 53 plays the role of locking connecting rod 3.At this time if tripping frame 5 can be driven to the tripping application of frame 5
The power rotated counterclockwise occurs, then the locking effect of locking part 53 is destroyed, then forms one at locking part 53 and the second bayonet 502
A opening, 3 one end of connecting rod are skidded off from opening, make the tripping frame 5 around institute at this point, the second return unit 7 generates reaction force
Driving wheel 4 is stated to rotate clockwise, at this time the first return unit 6 be stretched generate reaction force make driving wheel 4 and tripping frame 5 make
It rotates counterclockwise, moving contact does rotation counterclockwise, moving contact and static contact separation with driving wheel 4.At this point, 3 one end of connecting rod is
It is skidded off from opening, the power that the first return unit 6 acts on handle 2 after driving wheel 4, connecting rod 3 transmit has disappeared, and makes hand at this time
The power that handle 2 moves is the restoring force counterclockwise that torsional spring is applied on handle 2, and handle 2, which rotates counterclockwise, drives connecting rod 3 to return back to
It is in situ, i.e., state shown in FIG. 1.
It please refers to shown in Fig. 1, handle 2 is in situ.At this point, rotating clockwise handle 2, one end of connecting rod 3 is in the second card
Towards moving right in mouth 502, after the inner wall of 3 the second bayonet of end thereof contacts 502 of connecting rod, connecting rod 3 pushes driving wheel 4 to rotate, at this time
The second return unit 7 is compressed, then the second return unit 7 generates bounce promotion tripping frame 5 and rotates clockwise, also, in connecting rod 3 one
When the inner wall of the second bayonet of end in contact 502, this one end of connecting rod 3 contacts locking part 53 simultaneously, and connecting rod 3 pushes driving wheel 4 simultaneously
With locking part 53, then due to the collective effect of the second return unit 7 and locking part 53 make thread off frame 5 as driving wheel 4 makees up time
Needle rotation, the moving contact is also with rotating clockwise, and when turning to certain angle, moving contact is contacted with static contact, and circuit connects
It is logical.
The breaker further includes the first limit elastic component 12 and the second limit elastic component 13.The first limit elastic component
12 are set in the first fitting groove 45, and the both ends of the first limit elastic component 12 are separately connected first moving contact 10 and described
Driving wheel ontology 41.The driving wheel 4 compresses the first limit elastic component 12 when rotating relative to the first moving contact 10, so that
First moving contact 10 and 8 reliable contacts of the first static contact.The second limit elastic component 13 is set to the second fitting groove
In 46, the both ends of the second limit elastic component 13 are separately connected second moving contact 11 and the driving wheel ontology 41.Institute
It states and compresses the second limit elastic component 13 when driving wheel 4 is rotated relative to the second moving contact 11, so that second moving contact
11 with 9 reliable contacts of the second static contact.Since the first installation axle 451 and the second installation axle 461 are symmetrical arranged, work as driving wheel
When 4 rotation, while the first limit elastic component 12 and the second limit elastic component 13 are pushed, and then push 10 He of the first moving contact simultaneously
The rotation of second moving contact 11.
In the present embodiment, the first limit elastic component 12 and the second limit elastic component 13 are compressed springs.Please refer to Fig. 4
It is shown, handle 2 is rotated clockwise, when the first moving contact 10 and the first just contact of static contact 8, the second moving contact 11 and the second stationary contact
When first 9 just contact, the line at the both ends of connecting rod 3 is located at the top of the center of rotation of handle 2, acts on handle if removed at this time
Power on 2, since the restoring force of torsional spring and the reaction force of the first return unit 6 are all the power for rotating counterclockwise handle 2, then hand
Handle 2, which rotates counterclockwise, returns back to original position.Driving wheel 4 and tripping frame 5 equally return back to original position, the first moving contact 10 will with it is first quiet
Contact 8 separates, and the second moving contact 11 will be separated with the second static contact 9.Therefore when the first moving contact 10 and the first static contact 8 just connect
When the just contact of touching, the second moving contact 11 and the second static contact 9, need to continue to rotate handle 2, then the first moving contact 10 due to against
First static contact 8 cannot continue to rotate, and the second moving contact 11 against the second static contact 9 due to that cannot continue to rotate, and driving wheel 4
It is continued to rotate with tripping frame 5, therefore, the driving wheel 4 is rotated clockwise relative to the first moving contact 10 and the second moving contact 11,
The first limit elastic component 12 of compression and the second limit elastic component 13.When handle 2 is turned to against 1 spacing place 102 of shell, that is, scheme
Shown in 5 when position, the line at the both ends of connecting rod 3 is located at the lower section of the center of rotation of handle 2, at this point, due to the first limit elasticity
It is the power for rotating clockwise handle 2 that part 12, second, which limits elastic component 13 and the reaction force of the first return unit 6, and is greater than
The restoring force counterclockwise of torsional spring, removes the power acted on handle 2 at this time, then handle 2 will not automatically return to original position.At this point,
For first moving contact 10 tightly against the first static contact 8, the second moving contact 11 is tightly dynamic against the second static contact 9, i.e., first
8 reliable contacts of contact 10 and the first static contact, 9 reliable contacts of the second moving contact 11 and the second static contact.At this point, circuit closes a floodgate,
State i.e. shown in fig. 5.
It please refers to shown in Fig. 4 and Fig. 7, first frame body portion 51 includes first part 511 and second part 512.It is described
First part 511, the second part 512 and the hook portion 510 connect.The hook portion 510 is curved towards the second part 512
Folding.The first frame body portion 51 and hook portion 510 are linked to be a sheet body, and structure is simple, is easily worked, and simplify the structure of breaker,
To be conducive to reduce cost.The first part 511 is equipped with first shaft hole 5110, one end insertion first of second shaft 43
In axis hole 5110, so that frame 5 of threading off can be rotated centered on the second shaft 43.One end of the second part 512 connects institute
State the second return unit 7.Dotted line in Fig. 7 is merely to distinguish the various pieces of hook portion 510 and the first frame body portion 51, convenient for explanation
In actual product and dotted line is not present in the structure of hook portion 510 and the first frame body portion 51.
It please refers to shown in Fig. 3 and Fig. 8, for the stability for guaranteeing structure, the tripping frame 5 further includes the second frame body portion 52,
Second frame body portion 52 connects the hook portion 510 and first frame body portion 51, second frame body portion 52 and described first
Frame body portion 51 is oppositely arranged, and the driving wheel 4 is set between the first frame body portion 51 and the second frame body portion 52.Second frame body portion
52 include Part III 521, Part IV 522, Part V 523 and Part VI 524.Part III 521 and 510 phase of hook portion
To setting, Part III 521 is connected with the side of hook portion 510, and the locking part 53 is set to hook portion 510 and Part III 521
Junction.Second bayonet 502 is connected towards the Part III 521 with hook portion 510 inside of side, prevents the one of connecting rod 3
End skids off the second bayonet 502.Part IV 522 is oppositely arranged with first part 511,512 phase of Part V 523 and second part
To setting.One end connection Part III 521 and Part IV 522 of Part V 523, the other end connection of Part V 523
Part VI 524, the both ends of Part VI 524 are separately connected Part III 521 and Part V 523, that is, Part III
521, Part V 523 and Part VI 524 surround ring-type, and structural strength is more preferable, and saves material.The Part IV
522 are equipped with the second axis hole 5220, and the other end of second shaft 43 is inserted into the second axis hole 5220, thus the first frame body portion 51
It can be rotated centered on the second shaft 43 together with the second frame body portion 52.Dotted line in Fig. 8 is merely to distinguish the second frame body
In actual product and dotted line is not present convenient for the structure in the second frame body portion 52 of explanation in the various pieces in portion 52.
It please refers to shown in Fig. 1,6,12,13, the breaker further includes thermal trip 14 and the pole N conducting system.The heat
Buckle releaser 14 includes that bimetal leaf 141, double gold support 142, release lever 140, first to be flexible coupling the 143, first arc striking piece 144.The pole N
Conducting system includes that second to be connected is flexible coupling 145 and second arc striking piece 146.Double gold support that 142 are set to shell 1
Interior, double gold support 142 connection bimetal leafs 141 to provide a supporting role to bimetal leaf 141, the bimetal leaf 141
It is flexible coupling 143 connections, first moving contact 10 by first.First arc striking piece 144 connects double gold and supports 142, this first
Arc striking piece 144 is set to 16 side of arc-chutes, carries out arc extinguishing for electric arc to be introduced arc-chutes 16.Described 140 one end of release lever connects
The tripping frame 5 is connect, the other end cooperates with bimetal leaf 141 (as shown in fig. 6, the dotted line frame in Fig. 6 is interior it is shown that first is soft
The topology view of 143 lower section of connection), release lever 140 can be driven mobile when 141 bending deformation of bimetal leaf.In the present embodiment,
Release lever 140 is bent rod-like structure, and one end is set to 141 side of bimetal leaf, can be pushed when bimetal leaf 141 deforms de-
Button bar 140.Described second is flexible coupling 145 the second moving contacts of connection 11.An empty room can be separated out in the shell 1 by partition, the
The end of two arc striking pieces 146 is protruded into empty room, and the electric arc that the second moving contact 11 generates is introduced in empty room and carries out arc extinguishing.Open circuit
When device overloads, bimetal leaf 141 is heated to bend, and drives release lever 140 to move right, then release lever 140 drives de-
Buckle frame 5 rotates in an anti-clockwise direction, so that tripping frame 5 be made to rotate counterclockwise centered on the second shaft 43, connecting rod 3 is close to locking
One end locking effect in portion 53 is destroyed, then forms an opening at locking part 53 and the second bayonet 502, and 3 one end of connecting rod is from opening
It being skidded off at mouthful, the first return unit 6 discharges elastic potential energy, and driving wheel 4, tripping frame 5,2 moment of handle are rotated counterclockwise, thus the
One moving contact 10 and the first static contact 8 separate rapidly, and circuit disconnects, to play the role of protecting circuit.
Please refer to Fig. 1,7, shown in 9-11, the breaker further includes magnetictrip 15.The magnetictrip 15 wraps
Include skeleton 151, coil 152, dynamic iron core 153, mandril 154 and iron core spring 155.The skeleton 151 is set in shell 1, described
Coil 152 is sheathed on 151 outside of skeleton.The dynamic iron core 153 is set in skeleton 151.First static contact 8 is set to skeleton
151 one end.First static contact 8 includes fixed section 81, raised section 82, contact section 83 and striking section 84.The fixed section 81
Set on described 151 one end of skeleton, the contact section 83 connects the fixed section 81, and the striking section 84 connects the contact section
83, the raised section 82 is protruded by the fixed section 81 towards the dynamic iron core 153.The iron core spring 155 is held in dynamic iron
Between core 153 and the first static contact 8, specifically, the iron core spring 155 is held in the dynamic iron core 153 and the raised section
Between 82.Described 154 one end of mandril connects the dynamic iron core 153, and the other end passes through the raised section 82.When short circuit occurs for circuit
When, electric current increased dramatically, and under the electromagnetic force of coil 152, the raised section 82 of dynamic iron core 153 and the first static contact 8 is attracting,
Dynamic iron core 153 is mobile towards 8 direction of the first static contact rapidly, and dynamic iron core 153 pushes mandril 154 mobile towards tripping frame 5, thus
Tripping frame 5 is pushed to rotate counterclockwise centered on the second shaft 43, connecting rod 3 is broken close to one end locking effect of locking part 53
It is bad, then an opening is formed at locking part 53 and the second bayonet 502,3 one end of connecting rod is skidded off from opening, and the first return unit 6 is released
Elastic potential energy is put, rotates counterclockwise driving wheel 4, tripping frame 5,2 moment of handle, thus the first moving contact 10 and the first static contact
8 separate rapidly, and circuit disconnects, to play the role of protecting circuit.
The contact section 83 includes stationary contact bar 831 and contact 832, and the stationary contact bar 831 connects the fixed section 81, described
Contact 832 is set on the stationary contact bar 831.Specifically, the stationary contact bar 831 is annular in shape.The contact 832 passes through welding or riveting
The mode connect is fixedly arranged on the stationary contact bar 831.When the first static contact 8 and the first moving contact 10 contact, contacted by contact 832
First moving contact 10.The striking section 84 connects the stationary contact bar 831.When assembly, the striking section 84 is installed on breaker
The side of arc-chutes 16 quickly introduces electric arc in arc-chutes 16 conducive to striking section 84, reduces the energy that electric arc generates, reaches fast
The effect of fast arc extinguishing.Fixed section 81, raised section 82, stationary contact bar 831 and the striking section 84 of first static contact 8 are integrated into
Type simplifies structure, reduces costs, and without being installed by modes such as rivet or welds, performance is more stable.
Breaker of the present invention, the first static contact 8 with phase line for connecting, and the second static contact 9 with middle line for connecting.First
Moving contact 10 is contacted with the first static contact 8, then phase line is connected to, and the first moving contact 10 is separated with the first static contact 8, then phase line is disconnected
It opens.Second moving contact 11 is contacted with the second static contact 9, then middle line is connected to, and the second moving contact 11 is separated with the second static contact 9, then
Middle line disconnects.
In conclusion breaker of the present invention, pushes connecting rod 3 that driving wheel 4 and tripping frame 5 is driven to rotate again, i.e., using handle 2
The first moving contact 10 and the first static contact 8 can be made to contact or separate, the second moving contact 11 and the second static contact 9 are contacted or are separated,
Structure is simple, and assembly is very convenient, can greatly improve assembly efficiency, and reduce costs.
Although the present invention is disclosed above by preferred embodiment, however, it is not intended to limit the invention, this any known skill
Skill person can make some changes and embellishment without departing from the spirit and scope of the present invention, therefore, all without departing from the present invention
The content of technical solution, according to the technical essence of the invention it is to the above embodiments it is any it is simple modification, equivalent variations and
Modification, belongs to the protection scope of technical solution of the present invention.
Claims (7)
1. a kind of breaker characterized by comprising shell, handle, connecting rod, driving wheel, tripping frame, the first return unit, second
Return unit, the first static contact, the second static contact, the first moving contact and the second moving contact；
The handle is rotatably installed in the shell；One end of the connecting rod connects the handle, the other end and described
Driving wheel, the tripping frame are engaged to push the driving wheel and the tripping frame to rotate；
First return unit one end connects the shell, and the other end connects the driving wheel；
Second return unit one end connects the driving wheel, and the other end connects the tripping frame；
The driving wheel includes driving wheel ontology, first rotating shaft and the second shaft, and the first rotating shaft and the second shaft, which are set to, drives
Driving wheel ontology, the driving wheel are rotatably installed in the shell by the first rotating shaft, and the tripping frame passes through institute
It states the second shaft and is rotatably arranged in the driving wheel；
First static contact and second static contact are fixedly arranged on respectively in the shell；First moving contact and second moves
Contact is rotatably installed on the driving wheel, and first moving contact is corresponding with first static contact, the described second dynamic touching
Head is corresponding with second static contact；
The driving wheel further includes the first fitting groove and the second fitting groove, and first fitting groove and the second fitting groove are respectively arranged on institute
The front and rear sides for stating driving wheel ontology, for installing the first moving contact and the second moving contact respectively；The is equipped in first fitting groove
One installation axle, first moving contact one end are equipped with the first hole, and first installation axle is inserted into the first hole with by described first
Moving contact is rotatably installed on driving wheel；The second installation axle is equipped in second fitting groove, second moving contact one end is equipped with
Second hole, second installation axle are inserted into the second hole so that second moving contact is rotatably installed on driving wheel；
Breaker further includes thermal trip and the pole N conducting system, and the thermal trip includes bimetal leaf, double gold supports, tripping
Bar, first are flexible coupling and the first arc striking piece, and the bimetal leaf is supported to be installed in shell by double gold, the connection of release lever one end
Tripping frame, the other end and bimetal leaf cooperate, and the bimetal leaf is flexible coupling by described first connects first moving contact,
First arc striking piece connection double gold are supported；The pole N conducting system includes that second to be connected is flexible coupling and draws with second
Arcs, second, which is flexible coupling, connects the second moving contact；Release lever is bent rod-like structure, and one end is set to bimetal leaf side, when double
Release lever can be pushed when sheet deformation.
2. breaker according to claim 1, which is characterized in that driving wheel ontology side is equipped with hook, for connecting
Connect the first return unit.
3. breaker according to claim 1, which is characterized in that the tripping frame includes the first frame body portion, hook portion and lock
Stop, first frame body portion are rotatably arranged in the driving wheel by second shaft, and the hook portion is set to described the
It one frame body portion side and is bent towards first frame body portion, the locking part is set to the hook portion and towards first frame body
Portion's protrusion, first frame body portion, hook portion and locking part surround the first bayonet；The driving wheel ontology is equipped with the second bayonet；The
One bayonet and the second bayonet form a slot, and one end of the connecting rod is inserted into the slot of the first bayonet and the second bayonet composition.
4. breaker according to claim 3, which is characterized in that first frame body portion includes the first part being connected
And second part, the first part, the second part are connected with the hook portion, the hook portion is curved towards the second part
Folding, the first part are equipped with first shaft hole, and one end of second shaft is inserted into first shaft hole, and the one of the second part
End connects second return unit.
5. breaker according to claim 4, which is characterized in that the tripping frame further includes the second frame body portion, and described
Two frame body portions connect the hook portion and first frame body portion, second frame body portion are oppositely arranged with first frame body portion,
The driving wheel is set between the first frame body portion and the second frame body portion；Second frame body portion include Part III, Part IV,
Part V and Part VI；Part III is oppositely arranged with hook portion, and Part III is connected with the side of hook portion, Part IV with
First part is oppositely arranged, and Part V and second part are oppositely arranged, and one end of Part V connects Part III and the 4th
The other end of part, Part V connects Part VI, and the both ends of Part VI are separately connected Part III and Part V, institute
Part IV is stated equipped with the second axis hole, the other end of second shaft is inserted into the second axis hole.
6. breaker according to claim 1, which is characterized in that it further include the first limit elastic component, first limit
The both ends of elastic component are separately connected first moving contact and the driving wheel ontology.
7. breaker according to claim 6, which is characterized in that it further include the second limit elastic component, second limit
The both ends of elastic component are separately connected second moving contact and the driving wheel ontology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710249087.XA CN106971921B (en) | 2017-04-17 | 2017-04-17 | Breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710249087.XA CN106971921B (en) | 2017-04-17 | 2017-04-17 | Breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106971921A CN106971921A (en) | 2017-07-21 |
| CN106971921B true CN106971921B (en) | 2019-10-01 |
Family
ID=59332363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710249087.XA Active CN106971921B (en) | 2017-04-17 | 2017-04-17 | Breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106971921B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221481A (en) * | 2017-08-09 | 2017-09-29 | 上海安奕极企业发展有限公司 | Hot dropout governor motion and breaker |
| CN113972106A (en) * | 2020-07-24 | 2022-01-25 | 上海良信电器股份有限公司 | Circuit breaker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1077051A (en) * | 1992-03-31 | 1993-10-06 | 梅兰日兰公司 | The operating mechanism that is used for the band swing arm of a phase line and neutral circuit circuit breaker |
| CN104134588A (en) * | 2014-07-17 | 2014-11-05 | 正泰集团股份有限公司 | Operation device of miniature multi-pole circuit breaker |
| CN104835699A (en) * | 2015-04-29 | 2015-08-12 | 浙江天正电气股份有限公司 | Circuit breaker with double moving contacts |
| CN105575740A (en) * | 2016-03-14 | 2016-05-11 | 乐清市沃斯托电气有限公司 | Circuit breaker |
| CN206947273U (en) * | 2017-04-17 | 2018-01-30 | 乐清市沃斯托电气有限公司 | Breaker |
-
2017
- 2017-04-17 CN CN201710249087.XA patent/CN106971921B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1077051A (en) * | 1992-03-31 | 1993-10-06 | 梅兰日兰公司 | The operating mechanism that is used for the band swing arm of a phase line and neutral circuit circuit breaker |
| CN104134588A (en) * | 2014-07-17 | 2014-11-05 | 正泰集团股份有限公司 | Operation device of miniature multi-pole circuit breaker |
| CN104835699A (en) * | 2015-04-29 | 2015-08-12 | 浙江天正电气股份有限公司 | Circuit breaker with double moving contacts |
| CN105575740A (en) * | 2016-03-14 | 2016-05-11 | 乐清市沃斯托电气有限公司 | Circuit breaker |
| CN206947273U (en) * | 2017-04-17 | 2018-01-30 | 乐清市沃斯托电气有限公司 | Breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106971921A (en) | 2017-07-21 |
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Address after: 325600 Wenzhou Daqiao Industrial Zone, Leqing City, Wenzhou City, Zhejiang Province (4 / F, workshop 1, karamailuo Clothing Co., Ltd.) Patentee after: Zhejiang vostto Electric Co., Ltd. Address before: Yueqing City, Wang Lin Cun Bai Xiang Zhen Sha Hong Lu 325600 Zhejiang city of Wenzhou province 60-2 Patentee before: YUEQING WOSITUO ELECTRIC Co.,Ltd. |