CN105575740A - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
- Publication number
- CN105575740A CN105575740A CN201610144458.3A CN201610144458A CN105575740A CN 105575740 A CN105575740 A CN 105575740A CN 201610144458 A CN201610144458 A CN 201610144458A CN 105575740 A CN105575740 A CN 105575740A
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- China
- Prior art keywords
- driving wheel
- connects
- rotating shaft
- circuit breaker
- contact
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- 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
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
- H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure
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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
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/40—Combined electrothermal and electromagnetic 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
- H01H73/18—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
- H01H9/36—Metal parts
- H01H2009/365—Metal parts using U-shaped plates
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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
- H01H9/342—Venting arrangements for arc chutes
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention provides a circuit breaker comprising a shell, a driving wheel, a tripping bracket, a handle, a connecting rod, a moving contact, a first elastic reset member, a second elastic reset member and an electromagnetic tripping device. The electromagnetic tripping device comprises a static contact. The handle is rotatably installed in the shell. One end of the connecting rod is connected with the handle, and the other end is matched with the driving wheel and the tripping bracket. One end of the first elastic reset member is connected with the shell, and the other end is connected with the driving wheel. One end of the second elastic reset member is connected with the driving wheel, and the other end is connected with the tripping bracket. The driving wheel comprises a driving wheel body, a first rotating shaft and a second rotating shaft. The first rotating shaft and the second rotating shaft are arranged on the driving wheel body. The driving wheel is rotatably installed in the shell through the first rotating shaft. The tripping bracket is rotatably arranged on the driving wheel through the second rotating shaft. The moving contact and the static contact are oppositely arranged. The moving contact is installed on the driving wheel. When the driving wheel rotates, the driving wheel drives the moving contact to rotate so that the moving contact and the static contact are enabled to be contacted or separated. The circuit breaker is simple in structure, convenient to assemble and low in cost.
Description
Technical field
The present invention relates to low-voltage electrical apparatus resist technology field, particularly relate to a kind of circuit breaker.
Background technology
Circuit breaker is a kind of electric current that can close, carry and cut-off under normal loop condition, and in official hour, can carry and cut-off the switching device of the electric current under abnormal loop condition.Existing circuit breaker generally comprises housing, handle, connecting rod, fixed contact, moving contact, contact support, tripping, snap close, lever, latch spring, touch spring, back-moving spring, magnetictrip, thermal overload release, arc quenching system etc., complex structure, assembling difficulty, and cost is high.
Summary of the invention
The present invention, in order to overcome the problems referred to above existed in existing technology, provides a kind of structure simple, easy to assembly, and the circuit breaker that cost is low.
To achieve these goals, the invention provides a kind of circuit breaker, comprising: housing, driving wheel, dropout frame, handle, connecting rod, moving contact, the first elastic reset part, the second elastic reset part and magnetictrip; Described magnetictrip comprises fixed contact.Described handle is rotatably installed in described housing, and one end of described connecting rod connects described handle, and the other end and described driving wheel, described dropout bridge joint touch and coordinate to promote described driving wheel and the rotation of described dropout frame.Described first elastic reset part one end connects described housing, and the other end connects described driving wheel; Described second elastic reset part one end connects described driving wheel, and the other end connects described dropout frame.Described driving wheel comprises driving wheel body, the first rotating shaft and the second rotating shaft, driving wheel body is located in described first rotating shaft and the second rotating shaft, described driving wheel is rotatably installed in described housing by described first rotating shaft, and described dropout frame is located at described driving wheel rotationally by described second rotating shaft.Described fixed contact is fixedly arranged in described housing, and described moving contact and described fixed contact are oppositely arranged.Described moving contact is installed on driving wheel, drives described moving contact to rotate make moving contact with fixed contact contact or be separated when described driving wheel rotates.
In one embodiment of the invention, described dropout frame comprises first body, hook portion and lock part, described first body is located at described driving wheel rotationally by described second rotating shaft, described hook portion is located at described first body side and is bent towards described first body, described lock part is located at described hook portion and is protruded towards described first body, and described first body, hook portion and lock part surround the first bayonet socket; Described driving wheel body is provided with the second bayonet socket; First bayonet socket and the second bayonet socket form a groove, and one end of described connecting rod is inserted in the groove of the first bayonet socket and the second bayonet socket composition.
In one embodiment of the invention, described first body comprises Part II, Part III and Part IV, one end of Part III connects hook portion and Part II, the other end of Part III connects Part IV, hook portion and Part II lay respectively at the both sides of Part III, Part II and Part IV are positioned at the homonymy of Part III, described hook portion bends towards described Part III, described Part II is provided with the first axis hole, one end of described second rotating shaft is inserted in the first axis hole, one end that described Part III is connected with described Part IV connects described second elastic reset part.
In one embodiment of the invention, described dropout frame also comprises the second support body portion, and described second support body portion connects described hook portion and described first body, and described driving wheel is located between first body and the second support body portion; Described second support body portion comprises Part V, Part VI, Part VII, Part VIII and Part IX; One end of Part VII connects Part V and Part VI, and the other end of Part VII connects Part IV and Part IX, and the other end of Part IX connects Part V one end away from Part VI; Part V and hook portion are oppositely arranged, Part V is connected with the side of hook portion, Part VI and Part II are oppositely arranged, described Part VI is provided with the second axis hole, the other end of described second rotating shaft inserts in the second axis hole, Part VII and Part III are oppositely arranged, and Part VIII and Part IV are oppositely arranged, and the free end of Part VIII connects the free end of Part IV.
In one embodiment of the invention, described driving wheel also comprises limiting section, and described limiting section is located at described driving wheel body to limit the relatively described driving wheel anglec of rotation of described dropout frame.
In one embodiment of the invention, also comprise spacing elastic component, be provided with storage tank in described driving wheel body, one end of described moving contact is located in storage tank rotationally, and the two ends of described spacing elastic component connect moving contact and driving wheel body respectively.
In one embodiment of the invention, described driving wheel body comprises the first link and the second link, described first link and the second link are located at the both sides of described storage tank respectively, described first link connects described first elastic reset part, and described second link connects described second elastic reset part.
In one embodiment of the invention, also comprise thermal overload release, described thermal overload release comprises bimetal leaf, two gold is supported and release lever, and described bimetal leaf is installed in housing by two gold support, and release lever connects bimetal leaf and dropout frame.
In one embodiment of the invention, described magnetictrip also comprises skeleton, coil, dynamic iron core, push rod and iron core spring, described coil is sheathed on outside skeleton, described dynamic iron core is located in skeleton, described fixed contact comprises canned paragraph, raised section, contact section and striking section, described canned paragraph is located at described skeleton one end, described contact section connects described canned paragraph, described striking section connects described contact section, described raised section is protruded towards described dynamic iron core by described canned paragraph, described iron core spring is held between described dynamic iron core and described raised section, described push rod one end connects described dynamic iron core, the other end is through described raised section and towards described dropout frame.
In one embodiment of the invention, also comprise arc control device, described fixed contact side is located at by arc control device, arc control device comprise fixed head and several arc quenching plate, fixed head comprises base plate, the first side plate and the second side plate, the both sides of base plate are located at respectively by first side plate and the second side plate, several arc quenching plate is juxtaposed between the first side plate and the second side plate, the both sides of arbitrary arc quenching plate are individually fixed in the first side plate and the second side plate, gap is formed between adjacent two arc quenching plates, first side plate is provided with several first row pore, and first row pore is communicated with gap; Second side plate is provided with several second row pore, and second row pore is communicated with gap; First row pore and second row pore relative misalignment are arranged, and first row pore is communicated with different gaps respectively with second row pore.
Compared with prior art, beneficial effect of the present invention: circuit breaker of the present invention, utilizing rotatable handle to promote connecting rod drives driving wheel and dropout frame to rotate again, moving contact can be made with fixed contact contact or be separated, structure is simple, and driving wheel and dropout frame achieve the function of multiple parts such as tripping of the prior art, snap close, regulations and parameters, contact support, simplify the structure, assemble very convenient, greatly can improve efficiency of assembling, and reduce cost.
Accompanying drawing explanation
Fig. 1 is the structural representation that moving contact of breaker of the present invention and fixed contact are in released state.
Fig. 2 is the partial enlarged drawing of B in Fig. 1.
Fig. 3 is the structural representation that moving contact of breaker of the present invention and fixed contact are in contact condition.
Fig. 4 is the cross section view of Fig. 1.
Fig. 5 is the assembly structure schematic diagram of the driving wheel of circuit breaker of the present invention, dropout frame, handle, connecting rod, moving contact, the first elastic reset part, the second elastic reset part and spacing elastic component.
Fig. 6 is the fractionation structural representation of Fig. 5.
Fig. 7 is the front view of Fig. 5.
Fig. 8 is the rear view of Fig. 5.
Fig. 9 is the perspective view of the dropout frame of circuit breaker of the present invention.
Figure 10 is the structural representation of the magnetictrip of circuit breaker of the present invention.
Figure 11 is the cutaway view of Figure 10.
Figure 12 is the perspective view of the arc control device of circuit breaker of the present invention.
Figure 13 is the perspective view of another angle of arc control device of circuit breaker of the present invention.
Embodiment
Below in conjunction with accompanying drawing, by specific embodiment, clear, complete description is carried out to technical scheme of the present invention.
Please refer to shown in Fig. 1-4, the invention provides a kind of circuit breaker, comprising: housing 1, driving wheel 2, dropout frame 3, handle 4, connecting rod 5, moving contact 6, first elastic reset part 8, second elastic reset part 9 and magnetictrip 50.Described magnetictrip 50 comprises fixed contact 7.
For convenience of explanation, driving wheel 2, dropout frame 3, handle 4, connecting rod 5, the position of moving contact 6, first elastic reset part 8 in circuit breaker shown in Fig. 1 are called original position." left side " " right side " described in literary composition " on ", D score is for the left of corresponding figure, right, top, below respectively, just for the ease of being described in detail to the operation principle of circuit breaker, be not intended to limit the invention.
Described handle 4 is rotatably installed in described housing 1, and the center of rotation of described handle 4 is provided with torsion spring, and after handle 4 rotates, handle 4 can be automatically returned to original position by the reaction force of torsion spring.One end of described connecting rod 5 connects described handle 4, and the other end contacts with described driving wheel 2, described dropout frame 3 and coordinates to promote described driving wheel 2 and described dropout frame 3 rotates.Contact cooperation refers to and can promote driving wheel 2 when connecting rod 5 contacts driving wheel 2 and dropout frame 3 and dropout frame 3 rotates.Connecting rod 5 and driving wheel 2 side that frame 3 contacts of threading off is arcwall face.
Described first elastic reset part 8 one end connects described housing 1, and the other end connects described driving wheel 2.When described driving wheel 2 rotates clockwise and compresses the first elastic reset part 8, the first elastic reset part 8 produces reaction force makes described driving wheel 2 there is the trend of turning anticlockwise to original position.In one embodiment, the first elastic reset part 8 is Compress Spring, but is not limited thereto, and also can be the flexible member of other type, can put aside larger elastic potential energy after the first elastic reset part 8 is compressed, thus has larger bounce during release.Described first elastic reset part 8 is convexly curved, then more quick when the first elastic reset part 8 discharges elastic potential energy, and moving contact 6 can be avoided to shake and secondary arcing occurs.Described second elastic reset part 9 one end connects described driving wheel 2, and the other end connects described dropout frame 3, till making dropout frame 3 block described dropout frame 3 round driving wheel 2 as the dextrorotation limiting section 23 gone on described driving wheel 2.Described second elastic reset part 9 is Compress Spring, but is not limited thereto, and also can be the flexible member of other type.When driving wheel 2 rotates relative to described dropout frame 3 and compresses the second elastic reset part 9, the second elastic reset part 9 produces till reaction force makes described dropout frame 3 block described dropout frame 3 around described driving wheel 2 limiting section 23 be clockwise on described driving wheel 2.Referring to the direction in Fig. 1 and Fig. 7 indicated by A clockwise, is counterclockwise direction in contrast to this, hereafter identical therewith.
Described driving wheel 2 comprises driving wheel body 20, first rotating shaft 21 and the second rotating shaft 22.Driving wheel body 20 is located in described first rotating shaft 21 and the second rotating shaft 22.Described driving wheel 2 is rotatably installed in described housing 1 by described first rotating shaft 21.Described dropout frame 3 is located at outside described driving wheel 2 rotationally by described second rotating shaft 22.Described fixed contact 7 is fixedly arranged in described housing 1, and described moving contact 6 is oppositely arranged with described fixed contact 7.Described moving contact 6 is installed in driving wheel 2, drives described moving contact 6 to rotate to make moving contact 6 contact with fixed contact 7 or be separated when described driving wheel 2 rotates.
When described handle 4 rotates clockwise, drivening rod 5 moves, coordinate because connecting rod 5 contacts with driving wheel 2, dropout frame 3 thus described driving wheel 2 and described dropout frame 3 are rotated, and then drive described moving contact 6 to rotate, contact to make moving contact 6 with fixed contact 7 or be separated.Circuit breaker of the present invention directly relies on the effect of driving wheel 2 and dropout frame 3, moving contact 6 can be made to contact with fixed contact 7 or be separated, driving wheel 2 and dropout frame 3 achieve the function of multiple parts such as tripping of the prior art, snap close, lever, contact support, simplify the structure, assemble very convenient, greatly can improve efficiency of assembling, and reduce cost.
Described dropout frame 3 comprises first body 31, hook portion 311 and lock part 33.Described first body 31 is located at described driving wheel 2 rotationally by described second rotating shaft 22, described hook portion 311 is located at described first body 31 side and is bent towards described first body 31, described lock part 33 is located at described hook portion 311 and is protruded towards described first body 31, and described first body 31, hook portion 311 and lock part 33 surround the first bayonet socket 301.Described driving wheel body 20 is provided with the second bayonet socket 202.First bayonet socket 301 and the second bayonet socket 202 form a groove, one end of described connecting rod 5 is inserted in the groove of the first bayonet socket 301 and the second bayonet socket 202 composition, one end of described connecting rod 5 can the first bayonet socket 301 and the second bayonet socket 202 around space in movable, when handle rotates clockwise, one end of described connecting rod 5 the first bayonet socket 301 and the second bayonet socket 202 around space movable to the right, lock part 33 locking lives connecting rod 5, prevents connecting rod 5 from skidding off from the second bayonet socket 202.
When circuit breaker is in state shown in Fig. 3, the reaction force of the first elastic reset part 8 is through driving wheel 2, connecting rod 5 is passed on the lower position of handle 4 center of rotation, make handle 4 make the power rotated clockwise, this power rotated clockwise is greater than torsion spring and is applied to counterclockwise restoring force on handle 4, but now handle 4 is blocked can not rotate clockwise by housing 1, now, the sidewall of one end against described lock part 33 of connecting rod 5 and the inwall of described second bayonet socket 202, lock part 33 has blocked the opening part of the second bayonet socket 202, prevent one end of connecting rod 5 from shifting out from the opening part of the second bayonet socket 202, lock part 33 serves the effect of locking connecting rod 5.If now to dropout frame 3 to apply to order about the power that dropout frame 3 is rotated counterclockwise, then the locking effect of lock part 33 is destroyed, then lock part 33 and the second bayonet socket 202 place form an opening, connecting rod 5 one end skids off from opening part, now, second elastic reset part 9 produces till reaction force makes described dropout frame 3 block described dropout frame 3 around described driving wheel 2 limiting section 23 be clockwise on described driving wheel 2, now the first elastic reset part 8 is made driving wheel 2 and dropout frame 3 rotate counterclockwise until driving wheel 2 touches the spacing place 101 of housing 1 by compression generation reaction force, moving contact 6 is rotated counterclockwise along with driving wheel 2, moving contact 6 is separated with fixed contact 7.Now, connecting rod 5 one end skids off from opening part, first elastic reset part 8 acts on handle 4 through driving wheel 2, connecting rod 5 power after transmitting disappears, the power now making handle 4 move is the counterclockwise restoring force that torsion spring is applied on handle 4, handle 4 rotates counterclockwise drivening rod 5 and returns back to original position, the state namely shown in Fig. 1.
Please refer to shown in Fig. 1, handle 4 is in original position.Now, rotate clockwise handle 4, one end court in the second bayonet socket 202 of connecting rod 5 moves right, after the inwall of connecting rod 5 end thereof contacts second bayonet socket 202, connecting rod 5 promotes driving wheel 2 and rotates, now compress the second elastic reset part 9, then the second elastic reset part 9 produces bounce and promotes dropout frame 3 and rotate clockwise, and, when the inwall of connecting rod 5 end thereof contacts second bayonet socket 202, this one end of connecting rod 5 contacts lock part 33 simultaneously, connecting rod 5 promotes driving wheel 2 and lock part 33 simultaneously, then because the acting in conjunction of the second elastic reset part 9 and lock part 33 makes dropout frame 3 rotate clockwise along with driving wheel 2, described moving contact 6 is also along with rotating clockwise, when turning to certain angle, moving contact 6 contacts with fixed contact 7, circuit ON.
Described circuit breaker also comprises spacing elastic component 10, is provided with storage tank 201 in described driving wheel body 20, and one end of described moving contact 6 is located in storage tank 201 rotationally, and the two ends of described spacing elastic component 10 connect moving contact 6 and driving wheel body 20 respectively.Described driving wheel 2 compresses described spacing elastic component 10 when moving contact 6 rotates, to make described moving contact 6 and described fixed contact 7 reliable contacts.In one embodiment, described spacing elastic component 10 is Compress Springs.Please refer to shown in Fig. 1 and Fig. 3, rotate clockwise handle 4, when moving contact 6 just contacts with fixed contact 7, the line at the two ends of connecting rod 5 is positioned at the top of the center of rotation of handle 4, if now remove the power acted on handle 4, because the restoring force of torsion spring and the reaction force of the first elastic reset part 8 are all the power making handle 4 rotate counterclockwise, then handle 4 rotates counterclockwise and returns back to original position.Driving wheel 2 and dropout frame 3 return back to original position equally, and moving contact 6 will be separated with fixed contact 7.Therefore when moving contact 6 just contacts with fixed contact 7, need to be rotated further handle 4, then moving contact 6 is owing to can not be rotated further against fixed contact 7, and driving wheel 2 and dropout frame 3 are rotated further, therefore, described driving wheel 2 rotates clockwise relative to moving contact 6, compresses spacing elastic component 10.When handle 4 turns to against housing 1 spacing place 102, namely shown in Fig. 3 during position, the line at the two ends of connecting rod 5 is positioned at the below of the center of rotation of handle 4, now, because the reaction force of spacing elastic component 10 and the first elastic reset part 8 is the power making handle 4 rotate clockwise, and be greater than the counterclockwise restoring force of torsion spring, now remove the power acted on handle 4, then handle 4 can not automatically return to original position.Now, moving contact 6 tightly against fixed contact 7, i.e. moving contact 6 and fixed contact 7 reliable contacts.Now, circuit is reliably connected, the state namely shown in Fig. 3.
Please refer to shown in Fig. 1-4, described driving wheel body 20 comprises the first link 211 and the second link 212, described first link 211 and the second link 212 are located at the both sides of described storage tank 201 respectively, described first link 211 connects described first elastic reset part 8, and described second link 212 connects described second elastic reset part 9.
Described driving wheel 2 also comprises limiting section 23, and described limiting section 23 is located at described driving wheel body 20, for limiting the angle that described dropout frame 3 rotates around described driving wheel 2, so that installing connecting rods 5.Particularly, described limiting section 23 is located at described first rotating shaft 21 side, after dropout frame 3 is assemblied in driving wheel 2, again the second elastic reset part 9 is assemblied between driving wheel 2 and dropout frame 3, under the second elastic reset part 9 acts on, make de-mouth frame 3 do clockwise direction relative to driving wheel 2 rotate until stop operating after being resisted against described limiting section 23, now the first bayonet socket 301 and the second bayonet socket 202 form a groove, thus be convenient to one end of connecting rod 5 to insert successively in the groove that the first bayonet socket 301 and the second bayonet socket 202 form, facilitate the installation of connecting rod 5.
Please refer to shown in Fig. 5-9, described first body 31 comprises Part II 312, Part III 313 and Part IV 314, one end of Part III 313 connects hook portion 311 and Part II 312, the other end of Part III 313 connects Part IV 314, hook portion 311 and Part II 312 lay respectively at the both sides of Part III 313, Part II 312 and Part IV 314 are positioned at the homonymy of Part III 313, and described hook portion 311 bends towards described Part III 313.This first body 31 and hook portion 311 are linked to be a lamellar body, and structure is simple, easily processes, simplifies the structure of circuit breaker, thus are beneficial to and reduce costs.Described Part II 312 is provided with the first axis hole 3120, and one end of described second rotating shaft 22 is inserted in the first axis hole 3120, thus dropout frame 3 can rotate centered by the second rotating shaft 22.One end that described Part III 313 is connected with described Part IV 314 connects described second elastic reset part 9.The free end of described Part IV 314 is towards described magnetictrip 50, and the free end of described Part IV 314 refers to Part IV 314 one end away from Part III 313.Dotted line in Fig. 7 is only the various piece in order to distinguish hook portion 311 and first body 31, is convenient to the structure that hook portion 311 and first body 31 are described, there is not dotted line in actual product.
Please refer to shown in Fig. 5-9, for ensureing the stability of structure, described dropout frame 3 also comprises the second support body portion 32, and described second support body portion 32 connects described hook portion 311 and described first body 31, and described driving wheel 2 is located between first body 31 and the second support body portion 32.Described second support body portion 32 comprises Part V 321, Part VI 322, Part VII 323, Part VIII 324 and Part IX 325.One end of Part VII 323 connects Part V 321 and Part VI 322, the other end of Part VII 323 connects Part IV 314 and Part IX 325, the other end of Part IX 325 connects Part V 321 one end away from Part VI 322, namely Part V 321, Part VII 323 and Part IX 325 surround ring-type, structural strength is better, and saves material.Part V 321 and hook portion 311 are oppositely arranged, and Part V 321 is connected with the side of hook portion 311, and to strengthen the structural strength of dropout frame 3, described lock part 33 is located at the junction of hook portion 311 and Part V 321.Described second bayonet socket 202 is connected towards this Part V 321 with hook portion 311 inner side of side, prevents one end of connecting rod 5 from skidding off the second bayonet socket 202.Part VI 322 and Part II 312 are oppositely arranged, described Part VI 322 is provided with the second axis hole 3122, the other end of described second rotating shaft 22 inserts in the second axis hole 3122, thus first body 31 and the second support body portion 32 can together with rotate centered by the second rotating shaft 22.Part VII 323 and Part III 313 are oppositely arranged, and Part VIII 324 and Part IV 314 are oppositely arranged, and the free end of Part VIII 324 connects the free end of Part IV 314, to improve the structural strength of dropout frame 3.The free end of Part VIII 324 refers to Part VIII 324 one end away from Part VII 323.Dotted line in Fig. 8 is only the various piece in order to distinguish the second support body portion 32, is convenient to the structure in explanation second support body portion 32, there is not dotted line in actual product.
Described circuit breaker also comprises thermal overload release 40.Described thermal overload release 40 comprises bimetal leaf 41, two gold support 43, arc striking piece 44 and release lever 42, and release lever 42 connects bimetal leaf 41 and dropout frame 3.Particularly, described Part VIII 324 is provided with groove, and described release lever 42 one end is inserted in this groove to connect dropout frame 3.By two gold, described bimetal leaf 40 supports that 43 are installed in housing 1.Arc striking piece 44 one end connects two gold and supports 43, and the other end is located at arc control device 80 side, enters arc control device 80 carry out arc extinguishing with pilot arc.The direction of bimetal leaf 41 heated bending of described thermal overload release 40 is away from described dropout frame 3, when there is overload in circuit breaker, bimetal leaf 41 is heated and bends, drive release lever 42 to move right, then release lever 42 drives dropout frame 3 to rotate counterclockwise, and connecting rod 5 is destroyed near one end locking effect of lock part 33, first elastic reset part 8 discharges elastic potential energy, driving wheel 2, dropout frame 3, handle 4 are rotated counterclockwise fast, thus moving contact 6 and fixed contact 7 are separately, circuit disconnects.
Please refer to shown in Fig. 4, Figure 10 and Figure 11, described magnetictrip 50 also comprises skeleton 51, coil 52, dynamic iron core 53, push rod 54 and iron core spring 55.Described fixed contact 7 is located at skeleton 51 one end.Described coil 52 is sheathed on outside skeleton 51.Described dynamic iron core 53 is located in skeleton 51.Described fixed contact 7 comprises canned paragraph 71, raised section 72 and contact section 73, and described canned paragraph 71 is located at described skeleton 51 one end, and described contact section 73 connects described canned paragraph 71, and described raised section 72 is protruded towards described dynamic iron core 53 by described canned paragraph 71.Described iron core spring 55 is held between dynamic iron core 53 and fixed contact 7, and particularly, described iron core spring 55 is held between described dynamic iron core 53 and described raised section 72.Described push rod 54 one end connects described dynamic iron core 53, and the other end is through described raised section 72.When described moving contact 6 contacts described fixed contact 7, described push rod 54 is near the free end of described Part IV 314.When circuit is short-circuited, electric current sharply increases, under the electromagnetic force of coil 52, the raised section 72 moved on iron core 53 and fixed contact 7 is attracting, dynamic iron core 53 moves towards fixed contact 7 direction rapidly, dynamic iron core 53 promotes push rod 54 and moves towards the Part IV 314 of dropout frame 3, thus promotion dropout frame 3 rotates counterclockwise centered by the second rotating shaft 22, connecting rod 5 is destroyed near one end locking effect of lock part 33, then lock part 33 and the second bayonet socket 202 place form an opening, connecting rod 5 one end skids off from opening part, first elastic reset part 8 discharges elastic potential energy, make driving wheel 2, dropout frame 3, handle 4 rotates counterclockwise instantaneously, thus moving contact 6 and fixed contact 7 separate rapidly, circuit disconnects, to play the effect of protective circuit.The effect of the canned paragraph 71 of fixed contact 7 is equal to yoke of the prior art, the effect of raised section 72 is equal to static iron core of the prior art, the effect of contact section 73 is equal to fixed contact of the prior art, that is the fixed contact 7 in the present invention serves the effect of yoke of the prior art, static iron core and fixed contact simultaneously, instead of multiple parts, decrease the amount of parts of circuit breaker by parts, structure is simple, easy assembling, performance is more stable, reduces cost.
Described raised section 72 is provided with through hole 702, and described push rod 54 is through described through hole 702, thus push rod 54 can move through through hole 702, does counterclockwise to rotate to promote dropout frame 3, to make mechanism action thus moving contact 6 is separated with fixed contact 7.
Described contact section 73 comprises stationary contact bar 731 and contact 732, and described stationary contact bar 731 connects described canned paragraph 71, and described contact 732 is located on described stationary contact bar 731.Particularly, described stationary contact bar 731 in the form of a ring.Described contact 732 is fixedly arranged on described stationary contact bar 731 by the mode of welding or riveting.When fixed contact 7 contacts with moving contact 6, contact moving contact 6 by contact 732.
Described fixed contact 7 also comprises striking section 74, and described striking section 74 connects described contact section 73, and more specifically, described striking section 74 connects described stationary contact bar 731.During assembling, described striking section 74 is installed on the side of the arc control device 80 of circuit breaker, is beneficial to striking section 74 and electric arc is introduced in arc control device 80 fast, reduces the energy that electric arc produces, reaches the effect of fast arc extinction.The canned paragraph 71 of described fixed contact 7, raised section 72, stationary contact bar 731 and striking section 74 are formed in one, and simplify the structure, reduce cost, and without the need to by rivet or the mode such as welding is installed, performance is more stable.
Please refer to shown in Fig. 1, Figure 12 and Figure 13, described circuit breaker also comprises arc control device 80.Arc control device 80 to be installed in housing 1 and to be located at described fixed contact 7 side, and particularly, arc control device 80 are located between the striking section 74 of fixed contact 7 and the arc striking piece 44 of thermal overload release 40.Described arc control device 80 comprise fixed head 81 and several arc quenching plate 82.Fixed head 81 comprises base plate 810, first side plate 811 and the second side plate 812.The both sides of base plate 810 are located at respectively by first side plate 811 and the second side plate 812, several arc quenching plate 82 is juxtaposed between the first side plate 811 and the second side plate 812, the both sides of arbitrary arc quenching plate 82 are individually fixed in the first side plate 811 and the second side plate 812, form gap between adjacent two arc quenching plates 82.First side plate 811 is provided with several first row pore 801, and this first row pore 801 is communicated with gap; Second side plate 812 is provided with several second row pore 802, and this second row pore 802 is communicated with gap.Described base plate 810 is provided with several 3rd steam vent 803.Breaker actuation after circuit is short-circuited electric current, moving contact 6 and fixed contact 7 separate the electric arc that produces, and to enter arc control device by the striking section 74 of fixed contact 7 and the arc striking piece 44 of thermal overload release 40 after 80s, first row pore 801, second row pore 802 and the 3rd steam vent 803 fast pilot arc are shunted, prevent electric arc from pouring into the centre of arc control device simultaneously, avoid the arc quenching plate 82 that punctures or burn, and prevent outer gas stream from entering gap.After electric arc is by the cutting of arc quenching plate 82, the charged ion produced discharges arc control device quickly through first row pore 801, second row pore 802 and the 3rd steam vent 803, pass through fixed head 81 again to electro-ionic extruding, make electron ion lose impulsive force to discharge outside fixed head 81, avoid electron ion directly to discharge outside fixed head 81 and metallic conductor is damaged.
Described first row pore 801 is arranged with second row pore 802 relative misalignment, first row pore 801 is communicated with different gaps respectively with second row pore 802, namely the gap that the gap that first row pore 801 is communicated with is communicated with second row pore 802 is arranged in a crossed manner, is beneficial to electric arc and discharges from first row pore 801 and second row pore 802 fast.Described first row pore 801 is square opening or circular port, and structure is simple, easily processes.Similarly, described second row pore 802 is square opening or circular port, same easily processing.
Described 3rd steam vent 803 is square opening or circular port, and described 3rd steam vent 803 is arranged in two rows, and two ranked third steam vent 803 staggers to arrange and be communicated with different gaps respectively.Structure is simple, easily processes.
In sum, circuit breaker of the present invention, utilizing handle to promote connecting rod drives driving wheel and dropout frame to rotate again, moving contact can be made with fixed contact contact or be separated, structure is simple, and driving wheel and dropout frame achieve the function of multiple parts such as tripping of the prior art, snap close, regulations and parameters, contact support, simplify the structure, assemble very convenient, greatly can improve efficiency of assembling, and reduce cost.
Although the present invention discloses as above by preferred embodiment; but and be not used to limit the present invention; anyly know this those skilled in the art; without departing from the spirit and scope of the present invention; a little change and retouching can be done, therefore, every content not departing from technical solution of the present invention; the any simple modification done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all belong to the protection range of technical solution of the present invention.
Claims (10)
1. a circuit breaker, is characterized in that, comprising: housing, driving wheel, dropout frame, handle, connecting rod, moving contact, the first elastic reset part, the second elastic reset part and magnetictrip; Described magnetictrip comprises fixed contact;
Described handle is rotatably installed in described housing, and one end of described connecting rod connects described handle, and the other end and described driving wheel, described dropout bridge joint touch and coordinate to promote described driving wheel and the rotation of described dropout frame;
Described first elastic reset part one end connects described housing, and the other end connects described driving wheel; Described second elastic reset part one end connects described driving wheel, and the other end connects described dropout frame;
Described driving wheel comprises driving wheel body, the first rotating shaft and the second rotating shaft, driving wheel body is located in described first rotating shaft and the second rotating shaft, described driving wheel is rotatably installed in described housing by described first rotating shaft, and described dropout frame is located at described driving wheel rotationally by described second rotating shaft;
Described fixed contact is fixedly arranged in described housing, and described moving contact and described fixed contact are oppositely arranged; Described moving contact is installed on driving wheel, drives described moving contact to rotate make moving contact with fixed contact contact or be separated when described driving wheel rotates.
2. circuit breaker according to claim 1, it is characterized in that, described dropout frame comprises first body, hook portion and lock part, described first body is located at described driving wheel rotationally by described second rotating shaft, described hook portion is located at described first body side and is bent towards described first body, described lock part is located at described hook portion and is protruded towards described first body, and described first body, hook portion and lock part surround the first bayonet socket; Described driving wheel body is provided with the second bayonet socket; First bayonet socket and the second bayonet socket form a groove, and one end of described connecting rod is inserted in the groove of the first bayonet socket and the second bayonet socket composition.
3. circuit breaker according to claim 2, it is characterized in that, described first body comprises Part II, Part III and Part IV, one end of Part III connects hook portion and Part II, the other end of Part III connects Part IV, hook portion and Part II lay respectively at the both sides of Part III, Part II and Part IV are positioned at the homonymy of Part III, described hook portion bends towards described Part III, described Part II is provided with the first axis hole, one end of described second rotating shaft is inserted in the first axis hole, one end that described Part III is connected with described Part IV connects described second elastic reset part.
4. circuit breaker according to claim 3, is characterized in that, described dropout frame also comprises the second support body portion, and described second support body portion connects described hook portion and described first body, and described driving wheel is located between first body and the second support body portion; Described second support body portion comprises Part V, Part VI, Part VII, Part VIII and Part IX; One end of Part VII connects Part V and Part VI, and the other end of Part VII connects Part IV and Part IX, and the other end of Part IX connects Part V one end away from Part VI; Part V and hook portion are oppositely arranged, Part V is connected with the side of hook portion, Part VI and Part II are oppositely arranged, described Part VI is provided with the second axis hole, the other end of described second rotating shaft inserts in the second axis hole, Part VII and Part III are oppositely arranged, and Part VIII and Part IV are oppositely arranged, and the free end of Part VIII connects the free end of Part IV.
5. circuit breaker according to claim 1, is characterized in that, described driving wheel also comprises limiting section, and described limiting section is located at described driving wheel body to limit the relatively described driving wheel anglec of rotation of described dropout frame.
6. circuit breaker according to claim 1, it is characterized in that, also comprise spacing elastic component, in described driving wheel body, be provided with storage tank, one end of described moving contact is located in storage tank rotationally, and the two ends of described spacing elastic component connect moving contact and driving wheel body respectively.
7. circuit breaker according to claim 6, it is characterized in that, described driving wheel body comprises the first link and the second link, described first link and the second link are located at the both sides of described storage tank respectively, described first link connects described first elastic reset part, and described second link connects described second elastic reset part.
8. circuit breaker according to claim 1, it is characterized in that, also comprise thermal overload release, described thermal overload release comprises bimetal leaf, two gold is supported and release lever, described bimetal leaf is installed in housing by two gold support, and release lever connects bimetal leaf and dropout frame.
9. circuit breaker according to claim 1, it is characterized in that, described magnetictrip also comprises skeleton, coil, dynamic iron core, push rod and iron core spring, described coil is sheathed on outside skeleton, described dynamic iron core is located in skeleton, described fixed contact comprises canned paragraph, raised section, contact section and striking section, described canned paragraph is located at described skeleton one end, described contact section connects described canned paragraph, described striking section connects described contact section, described raised section is protruded towards described dynamic iron core by described canned paragraph, described iron core spring is held between described dynamic iron core and described raised section, described push rod one end connects described dynamic iron core, the other end is through described raised section and towards described dropout frame.
10. circuit breaker according to claim 1, it is characterized in that, also comprise arc control device, described fixed contact side is located at by arc control device, arc control device comprise fixed head and several arc quenching plate, fixed head comprises base plate, first side plate and the second side plate, the both sides of base plate are located at respectively by first side plate and the second side plate, several arc quenching plate is juxtaposed between the first side plate and the second side plate, the both sides of arbitrary arc quenching plate are individually fixed in the first side plate and the second side plate, gap is formed between adjacent two arc quenching plates, first side plate is provided with several first row pore, first row pore is communicated with gap, second side plate is provided with several second row pore, and second row pore is communicated with gap, first row pore and second row pore relative misalignment are arranged, and first row pore is communicated with different gaps respectively with second row pore.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610144458.3A CN105575740B (en) | 2016-03-14 | 2016-03-14 | Breaker |
| GB1715441.0A GB2552628B (en) | 2016-03-14 | 2016-08-19 | Breaker |
| DE112016001398.1T DE112016001398B4 (en) | 2016-03-14 | 2016-08-19 | Circuit breaker |
| PCT/CN2016/096001 WO2017156978A1 (en) | 2016-03-14 | 2016-08-19 | Breaker |
| TNP/2018/000230A TN2018000230A1 (en) | 2016-03-14 | 2016-08-19 | Breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610144458.3A CN105575740B (en) | 2016-03-14 | 2016-03-14 | Breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105575740A true CN105575740A (en) | 2016-05-11 |
| CN105575740B CN105575740B (en) | 2018-06-05 |
Family
ID=55885760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610144458.3A Active CN105575740B (en) | 2016-03-14 | 2016-03-14 | Breaker |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN105575740B (en) |
| DE (1) | DE112016001398B4 (en) |
| GB (1) | GB2552628B (en) |
| TN (1) | TN2018000230A1 (en) |
| WO (1) | WO2017156978A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601563A (en) * | 2017-02-23 | 2017-04-26 | 厦门宏发开关设备有限公司 | Electromagnetic circuit breaker and rapid pushing lock catch mechanism |
| CN106971921A (en) * | 2017-04-17 | 2017-07-21 | 乐清市沃斯托电气有限公司 | Breaker |
| WO2017156978A1 (en) * | 2016-03-14 | 2017-09-21 | 乐清市沃斯托电气有限公司 | Breaker |
| CN110491748A (en) * | 2019-08-06 | 2019-11-22 | 乐清市贝加尔电子科技有限公司 | Earth leakage circuit breaker |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883396B (en) * | 2020-08-30 | 2022-07-08 | 上海电器科学研究所（集团）有限公司 | Reset mechanism of magnetic flux release |
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| CN102568948A (en) * | 2011-12-13 | 2012-07-11 | 科都电气有限公司 | Improved circuit breaker |
| CN104282510A (en) * | 2014-10-16 | 2015-01-14 | 上海安奕极企业发展有限公司 | Two-pole compact miniature circuit breaker |
| CN205595292U (en) * | 2016-03-14 | 2016-09-21 | 乐清市沃斯托电气有限公司 | Circuit breaker |
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| ATE355604T1 (en) * | 2000-04-07 | 2006-03-15 | Hager Electro | SAFETY DEVICE FOR ELECTRICAL DEVICE OF CIRCUIT BREAKER TYPE |
| CN204966422U (en) * | 2015-08-11 | 2016-01-13 | 浙江正泰电器股份有限公司 | Operating mechanism of circuit breaker |
| CN204991626U (en) * | 2015-09-08 | 2016-01-20 | 浙江正泰电器股份有限公司 | Circuit breaker |
| CN105575740B (en) | 2016-03-14 | 2018-06-05 | 乐清市沃斯托电气有限公司 | Breaker |
-
2016
- 2016-03-14 CN CN201610144458.3A patent/CN105575740B/en active Active
- 2016-08-19 TN TNP/2018/000230A patent/TN2018000230A1/en unknown
- 2016-08-19 WO PCT/CN2016/096001 patent/WO2017156978A1/en active Application Filing
- 2016-08-19 DE DE112016001398.1T patent/DE112016001398B4/en active Active
- 2016-08-19 GB GB1715441.0A patent/GB2552628B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568948A (en) * | 2011-12-13 | 2012-07-11 | 科都电气有限公司 | Improved circuit breaker |
| CN104282510A (en) * | 2014-10-16 | 2015-01-14 | 上海安奕极企业发展有限公司 | Two-pole compact miniature circuit breaker |
| CN205595292U (en) * | 2016-03-14 | 2016-09-21 | 乐清市沃斯托电气有限公司 | Circuit breaker |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017156978A1 (en) * | 2016-03-14 | 2017-09-21 | 乐清市沃斯托电气有限公司 | Breaker |
| GB2552628A (en) * | 2016-03-14 | 2018-01-31 | Yueqing Onesto Electric Co Ltd | Breaker |
| GB2552628B (en) * | 2016-03-14 | 2022-03-30 | Yueqing Onesto Electric Co Ltd | Breaker |
| DE112016001398B4 (en) | 2016-03-14 | 2023-12-14 | Yueqing Onesto Electric Co., Ltd. | Circuit breaker |
| CN106601563A (en) * | 2017-02-23 | 2017-04-26 | 厦门宏发开关设备有限公司 | Electromagnetic circuit breaker and rapid pushing lock catch mechanism |
| CN106601563B (en) * | 2017-02-23 | 2019-02-26 | 厦门宏发开关设备有限公司 | A kind of electro-magnetic circuit breaker and quickly push latching device open |
| CN106971921A (en) * | 2017-04-17 | 2017-07-21 | 乐清市沃斯托电气有限公司 | Breaker |
| CN106971921B (en) * | 2017-04-17 | 2019-10-01 | 乐清市沃斯托电气有限公司 | Breaker |
| CN110491748A (en) * | 2019-08-06 | 2019-11-22 | 乐清市贝加尔电子科技有限公司 | Earth leakage circuit breaker |
| CN110491748B (en) * | 2019-08-06 | 2024-02-13 | 乐清市贝加尔电子科技有限公司 | Leakage protection circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112016001398B4 (en) | 2023-12-14 |
| GB2552628B (en) | 2022-03-30 |
| CN105575740B (en) | 2018-06-05 |
| WO2017156978A1 (en) | 2017-09-21 |
| TN2018000230A1 (en) | 2019-10-04 |
| GB2552628A (en) | 2018-01-31 |
| DE112016001398T5 (en) | 2017-12-21 |
| GB201715441D0 (en) | 2017-11-08 |
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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: 325603, Wenzhou, Zhejiang Province, Yueqing City, North white elephant Town, Wang Lin Village Patentee before: YUEQING WOSITUO ELECTRIC Co.,Ltd. |