CN207425751U

CN207425751U - A kind of high-breaking miniature breaker

Info

Publication number: CN207425751U
Application number: CN201721053930.9U
Authority: CN
Inventors: 李文杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-06-08
Filing date: 2017-08-23
Publication date: 2018-05-29
Anticipated expiration: 2027-08-23
Also published as: AU2018100776A4; CN107369593B; GB2564562B; GB201809424D0; CN207097761U; CN107369593A; CN107359087A; GB2564562A

Abstract

The utility model discloses a kind of high-breaking miniature breakers, and including housing, upper cover, operating mechanism, wink motivation structure, arc initiation device and arc-control device, operating mechanism, wink motivation structure, arc initiation device and arc-control device are built in housing, it is characterised in that：Wink motivation structure include handle, handle button spring, move implementation bar wink, described handle button spring one end is embedded in the latasuture by the handle center hole, another terminal is stuck on the handle positioning endpoint, and with handle pivot bush unit on the handle locating shaft of the housing, implementation bar is moved the wink to be placed in the bottom surface of housing, can both ends movement, upper-lower position positions by shaft end side and housing the circle shelves of the operating mechanism；Device is moved in the utility model wink so that being to contact moment when moving contact is contacted with static contact, is reduced substantial amounts of electric arc compared to traditional slowly contact, and then is made product more safe and reliable.

Description

A kind of high-breaking miniature breaker

Technical field

The utility model belongs to breaker technical field more particularly to a kind of high-breaking miniature breaker.

Background technology

The breaker is mainly used for the 50/60HZ of modern building, rated voltage 230V/415V and following electric wire Overloaded in road and equipment, short circuit, earth leakage protective be used, also for the infrequently operation and isolation of circuit, realize these functions Premise be turned off or closed path.

The process of cut-out or closed path is to coordinate to complete by breaker each unit, when generating various open circuits in circuit During electric fault in device protection domain, breaker is threaded off automatically, dynamic/static contact separation, circuit power-off, so as to reach protection electricity Gas circuit, terminal consuming device prevent fire and related facility from damaging.

All breakers are all based on the purpose of above-mentioned function and produce on the market, the difference is that various breakers Performance is different, the shortcomings that due to product design, is particularly disconnected in commercial Application short from the nearlyer workspace of transformer The miniature circuit breaker during high current of road on the market is often unable to do what one wishes, and product lacks stability, and cut-off velocity is unhappy, and arc extinguishing area disappears Arc is indifferent, and arc short-circuit is serious, so as to damage breaker.

As society continues to develop, the living standard of the people is higher and higher, also includes power utilization environment to various living conditions It is required that also higher and higher, power consumption, will be steady greatly than ever with electrical stability.This requires electrical enterprise exists Constantly there is a technological innovation in this field, and the new product of technological revolution adapts to these requirements.Previous household low pressure electric wiring In general rated current only require that 40A, 50A instantaneous short-circuit fault current remain to be competent at for 3K, 4.5K, 6K conventional products；But such as Fruit reaches 63A applied to rated current, and instantaneous short-circuit fault current is just to seem unable to do what one wishes in the circuit of 10K, compared to above-mentioned Short-circuit current is 3K, and for energy caused by the 10K electric currents of 4.5K, 6K not in a magnitude, striking functional block is not anti- Arc infiltration design, circuit breaker operation mechanism do not have energy storage boosting trip gear, and arc extinguishing area cannot be sufficiently large, and breaker mechanism is just not Can extremely fast division circuit, that is, enable quick disjunction circuit, but because the electric arc that cannot quickly extinguish remain to it is secondary restrike, arc light Energy can also be increased to moment and burn out breaker suddenly.

After another situation is circuit breaker trip faulty circuit, user of service is simultaneously ignorant, is thought as under manually breaking, Mistake closes faulted circuit again, at this time if the impact of the not competent secondary high current of breaker, operating personnel Most probably can be because of misoperation, the unstable or incompetent of breaker simultaneously may be with serious fire so as to lose life Accident, object of speaking sarcastically, such malignant event are all occurring every year.

Utility model content

The purpose of this utility model is small-sized disconnected for a kind of good high breaking of security of deficiency offer of the prior art Road device.

The utility model is achieved by the following technical solution：

A kind of high-breaking miniature breaker, including housing, upper cover, operating mechanism, wink motivation structure, arc initiation device and interrupter cartridge Put, operating mechanism, wink motivation structure, arc initiation device and arc-control device are built in housing, wink motivation structure include handle, handle button Spring, wink move implementation bar, and described handle button spring one end is embedded in the latasuture by the handle center hole, and another terminal is stuck in described On handle positioning endpoint, and with handle pivot bush unit on the handle locating shaft of the housing, when handle is packed into housing, the hand That one end that handle torsional spring is located at handle positioning endpoint is taken advantage of a situation in the card slot for inserting housing, pushes to handle, handle often carries at once Screen resilience.Move in the wink implement bar be placed in the bottom surface of housing, can both ends movement, mobile condition depend on handle it is upward in itself It pushes away or pushes down on, upper-lower position is positioned by the shaft end side of the operating mechanism with housing circle shelves, is moved implementation bar the wink and is located at One end of handle is put there are one limiting slot, and the raised top-end of the handle, at its lower end is put in the limiting slot, and the handle is opened Off position is respectively at two side walls of the limiting slot；Because move in wink implement bar be located at handle one end put there are one /V Slot, the raised top-end of handle, at its lower end are put in the limiting slot, and the position of the switch of handle is respectively at two sides of limiting slot Wall, drives a side walls when pushing away on handle, handle push-down tape moves another side walls.It moves in the wink and implements bar relative limit slot The position of distal end is into bending shape, then the position rolled over stretches out an elasticity and cranks arm, and the elasticity cranks arm end head forming as coupler body, often hangs Firmly stress moves the other end stop bit for implementing bar the wink in housing side inner wall in the stake of the shaft end of the housing.

It is to interlock movement to be driven when being pushed away when being pushed away on handle under and move the both sides of device respectively wink, is open circuit of closing a floodgate when above pushing away Device, handle drives connecting rod to promote operating mechanism movement, while handle also promotes wink lever to be moved with the direction that operating mechanism mutually moves, Because the elasticity for moving device wink is cranked arm, end head forming has tangled the shaft end stake of operating mechanism, gradual stress, increased power for coupler body It is transferred on handle, when the thrust of handle, which reaches, disengages crozier, is unloaded under the thrust moment of handle and be transferred to operating mechanism, The power of moment causes operating mechanism moment to close a floodgate, such the result is that fast, the arc light ablation damage ten of combined floodgate metal contact of closing a floodgate Divide gently, improve life of product.It pushes away i.e. breaker under handle to open a sluice gate, dynamic/static contact is cranked arm end away from the elasticity for moving device wink simultaneously Head is configured to the shaft end stake that coupler body has tangled operating mechanism, and breaker is on the position disconnected.

The operating mechanism includes concave wheel, cursor, lock wheel and support shaft；Support shaft is mounted on the shaft end of housing In stake, move in the wink and implement the i.e. described shaft end stake outer rim in the back side that bar is arranged on operating mechanism concave wheel, the recessed grain of the concave wheel Torsion spring is built-in with, torsion spring one end is locked to other end in the inner wall hole of the recessed grain and is placed on cursor, described turn The boss of swing arm, which is put in, can mutually turn in being combined into itself by described torsion spring latching with the concave wheel in the concave wheel Dynamic support arm；Through the support shaft among the support arm, and prolong support shaft and make arcuate movement, on the support arm End can be contained U-shaped push rod end and can be had ready conditions by forming one together with common armful of the concave wheel and the cursor The track of scaling, the U-shaped push rod other end head are buckled on handle.

The arc initiation device is shaping iron plate, which is built in housing, and is covered and be embedded in completely by upper cover In the housing, the arc initiation device that is integrally formed.

Arc-control device, that is, the arc-extinguish chamber, interior arc-extinguish chamber is spark chamber, and the arc-extinguish chamber is made of 17 iron plates, and It is equidistantly embedded in outline border, the outline border one side distributes alternately through hole, opposite for two rows, and the arc-extinguish chamber outline border upper limb is close Magnet steel outer wall, lower edge abut arc initiation device；The outer one side of the arc-extinguish chamber back position, that is, housing spark chamber is arranged as several shapes The airtube to differ, and the spark chamber is connected with buckle releaser cavity.

Moving contact is further included, the moving contact is located at the centre of the arc initiation device, and housing central section is equipped with riveting axis, striking Angle copper piece is placed with striking bending iron in the riveting axis distribution, the arc leading angle.

The lock wheel lower end is stretched out shape armed lever, and described shape armed lever top is hugged vacates half arc trench notch, described Trench notch includes the arcuation wall of the support arm protrusion, and the lock wheel does folding and unfolding campaign along the arcuation wall.

Described is placed with shape armed lever one side on dropout pull rod, and described dropout pull rod one end is limited in the convex boundary of pedestal On, back and forth movement is done along the convex boundary, the dropout pull rod other end is limited in the groove on pedestal border；Described is de- Button pull rod contains thermal release device between both ends.

Two sides are designed with arc initiation device in the housing of high-breaking miniature breaker, and arc initiation device is assemblied on housing, and with Have between housing mostly every separated spacing gap, instantaneously circulate convenient for gas, actually when breaker cut-offs high current, the gas The plasma high heat rapidly swollen gas to rise and with electric arc is likely to be, moment can be attached on arc initiation device, if there is this When arc initiation device have and expose to the open air, electric arc unavoidably can scaling loss arc initiation device, cause arc light is restriked to burn out breaker when serious.Arc initiation device Region it is very narrow and small, and arc initiation device is in the downside in striking road, when short circuit current flow is little such as 6K 4.5K 3K when, the hot arc of hot gas The reverse side i.e. side of arc initiation device of arc initiation device generally will not be largely extend into, would not also arc short-circuit be caused to restrike, But the grade of 10K short circuit current flows is different, the arc light instantaneously generated, arc heat, energy, and gas is all more rapid and measures greatly, right The measures such as the protection of arc initiation device and air guide are particularly important.

High-breaking miniature breaker is provided with arc-control device, that is, arc-extinguish chamber, and arc-extinguish chamber is made of 17 iron plates, and equidistant Be embedded in outline border, outline border one side distributes alternately through hole, opposite for two rows, arc-extinguish chamber outline border upper limb close to magnet steel outer wall, under Edge abuts arc initiation device.The purpose so set causes arc extinguishing area to increase arc section gap so that arc section gap reach 18 every.When When arc light is more divided into equal portions, the voltage at arc-extinguish chamber both ends can increase, so as to arc light will not restrike also will arc extinguishing iron draw Arc road, which is elongated, to be separated, and extinguishing falls, and in addition the iron plate multipotency of arc-extinguish chamber enough increases the area of the cold arc of metal and reaches the work of fast cooling With temperature rapidly reduces arc light also with regard to Lock-out.

The outer one side of arc-extinguish chamber back position, that is, housing spark chamber of high-breaking miniature breaker is arranged as several shapes and differs Airtube, and spark chamber is connected with buckle releaser cavity.When breaker cut-offs failure high-current circuit, moment generates Energy warms gas, be associated with arc light and be scattered in all directions in housing, the passage of optimization can make housing be subject to the swollen tension distribution of heat equal Even, breaker will not be burst.

The moving contact of the operating mechanism of high-breaking miniature breaker is such connection by screw switching on operating mechanism Different from being glued, convenient for removing stage makeup and costume, when assembling, is convenient and efficient, is influenced from the unstability of colloid, and engagement is firm, and rate is high.Separately Outer moving contact is located at the centre of arc initiation device, and housing central section is equipped with riveting axis, and arc leading angle copper piece is in riveting axis distribution, arc leading angle It is placed with striking bending iron.

Device is moved in the utility model wink so that being to contact moment when moving contact is contacted with static contact, is slowly connect compared to traditional It touches and reduces substantial amounts of electric arc, and then make product more safe and reliable.

Description of the drawings

Fig. 1 is the schematic diagram of the utility model internal structure；

Fig. 2 is the schematic diagram at the utility model internal structure back side；

Fig. 3 is the structure diagram of arc-extinguish chamber；

Fig. 4 is the structure diagram of concave wheel；

Fig. 5 is the structure diagram of cursor；

Fig. 6 is the structure diagram of lock wheel；

Fig. 7 is to move the structure diagram for implementing bar wink.

Specific embodiment

With reference to embodiment, the utility model is described in further detail.

Embodiment

Such as a kind of Fig. 1-high-breaking miniature breaker shown in Fig. 7, including housing 1, upper cover 2, operating mechanism, wink motivation Structure, arc initiation device and arc-control device, operating mechanism, wink motivation structure, arc initiation device and arc-control device are built in housing 1, and wink is moved Mechanism includes handle 3, handle button spring 4, moves in wink and implement bar 5, and described 4 one end of handle button spring is embedded in the handle center hole 31 In other latasuture 32, another terminal is stuck on the handle positioning endpoint 33, and with 3 pivot bush unit of handle in the housing On handle locating shaft 34, when handle is packed into housing, the handle torsional spring 4, which is located at handle and positions that one end of endpoint 33, takes advantage of a situation and inserts In one card slot of housing, handle is pushed to, handle is at once often with resilience.Implementation bar 5 is moved the wink to be placed in the bottom of housing 1 Face, can both ends movement, mobile condition pushes up or pushes down in itself depending on handle 3, and upper-lower position is by the operation machine The shaft end side of structure is positioned with housing circle shelves, move in the wink implement bar 5 be located at handle one end put there are one limiting slot 51, the hand The raised top-end 34 of 3 lower end of handle is put in the limiting slot 51, and the position of the switch of the handle is respectively at the limiting slot Two side walls；Because move in wink implement bar be located at handle one end put there are one limiting slot, the raised top-end of handle, at its lower end puts in In the limiting slot, the position of the switch of handle is respectively at two side walls of limiting slot, and a side is driven when being pushed away on handle Wall, handle push-down tape move another side walls.The position for implementing 5 relative limit slot distal end of bar is moved the wink into bending shape, then The position of folding stretches out an elasticity and cranks arm 52, and the elasticity cranks arm end head forming as coupler body 53, often tangles stress in the housing In shaft end stake 6, the other end stop bit for implementing bar is moved the wink in housing side inner wall.

It is to interlock movement to be driven when being pushed away when handle 3 above pushes away under and move the both sides of device respectively wink, is open circuit of closing a floodgate when above pushing away Device, handle drives connecting rod to promote operating mechanism movement, while handle also promotes wink lever to be moved with the direction that operating mechanism mutually moves, Because the elasticity for moving device wink is cranked arm, end head forming has tangled the shaft end stake of operating mechanism, gradual stress, increased power for coupler body It is transferred on handle, when the thrust of handle, which reaches, disengages crozier, is unloaded under the thrust moment of handle and be transferred to operating mechanism, The power of moment causes operating mechanism moment to close a floodgate, such the result is that fast, the arc light ablation damage ten of combined floodgate metal contact of closing a floodgate Divide gently, improve life of product.It pushes away i.e. breaker under handle to open a sluice gate, dynamic and static contact is cranked arm away from the elasticity for moving device wink simultaneously End head forming has tangled the shaft end stake of operating mechanism for coupler body, and breaker is on the position disconnected.

The operating mechanism includes concave wheel 7, cursor 8, lock wheel 9 and support shaft 10；Support shaft is mounted on housing Shaft end stake 6 on, move in the wink and implement the back side i.e. 6 outer rims of shaft end stake that bar 5 is arranged on operating mechanism concave wheel 7, it is described The recessed grain of concave wheel is built-in with torsion spring (not shown), and torsion spring one end is locked to other one in the inner wall hole of the recessed grain End is placed on cursor, the boss of the cursor put in in the concave wheel with the concave wheel by the torsion spring Lock the support arm that is combined into and itself can mutually rotate；Through the support shaft 10 among the support arm, and prolong support Axis makees arcuate movement, the support arm upper end embraced jointly with the cursor 8 by the concave wheel 7 together with form one can To contain the track of U-shaped 11 end of push rod and the scaling that can have ready conditions, the U-shaped push rod other end head is buckled on handle 3.

The arc initiation device is shaping iron plate 12, which is built in housing, and is covered completely by upper cover embedded In the arc initiation device in the housing, being integrally formed.

Moving contact 15 is further included, the moving contact 15 is located at the centre of the arc initiation device, and housing central section is equipped with riveting axis, 16 copper piece of arc leading angle is placed with striking bending iron 17 in the riveting axis distribution, the arc leading angle.

9 lower end of lock wheel is stretched out shape armed lever 91, and described shape armed lever top is hugged vacates half arc trench notch 92, The trench notch includes the arcuation wall 81 of the support arm protrusion, and the lock wheel 9 does folding and unfolding fortune along the arcuation wall It is dynamic.

Described is placed with 91 one side of shape armed lever on dropout pull rod 18, and described dropout pull rod one end is limited in the convex of pedestal In boundary 19, back and forth movement is done along the convex boundary, the dropout pull rod other end is limited in the groove 20 on pedestal border；Institute Thermal release device 21 is contained between the dropout pull rod both ends stated.

Arc-control device, that is, the arc-extinguish chamber 13 is spark chamber in arc-extinguish chamber, and the outline border one side distributes alternately through hole, phase To be two rows of, the arc-extinguish chamber outline border upper limb abuts arc initiation device close to 14 outer wall of magnet steel, lower edge；The arc-extinguish chamber back position That is the outer one side of housing spark chamber is arranged as the airtube that several shapes differ, and the spark chamber is to connect with buckle releaser cavity 's.Arc-extinguish chamber is made of 17 iron plates, and is equidistantly embedded in outline border, and the purpose so set causes arc extinguishing area to increase arc Section gap so that arc section gap reach 18 every.When arc light is more divided into equal portions, the voltage at arc-extinguish chamber both ends can increase, So as to arc light will not restrike also will the striking road of arc extinguishing iron elongate and separate, extinguishing falls, and in addition the iron plate multipotency of arc-extinguish chamber enough increases The area of the cold arc of big metal has the function that fast cooling, and temperature rapidly reduces arc light also with regard to Lock-out.When breaker is cut-off During failure high-current circuit, the energy warms gas of moment generation is associated with arc light and is scattered in all directions in housing, the passage energy of optimization Make housing that the swollen tension of heat is subject to be evenly distributed, breaker will not be burst.

The moving contact of the operating mechanism of high-breaking miniature breaker (is not shown in figure on operating mechanism by screw switching Go out), such connection is different from being glued, and convenient for removing stage makeup and costume, when assembling is convenient and efficient, is influenced from the unstability of colloid, engagement Firm, rate is high.In addition moving contact is located at the centre of arc initiation device, and housing central section is equipped with riveting axis, and arc leading angle copper piece is around riveting Axis is distributed, and striking bending iron is placed in arc leading angle.

The advantages of basic principle, main feature and the utility model of the utility model has been shown and described above.One's own profession The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description Simply illustrate the principle of the utility model, it is on the premise of not departing from the spirit and scope of the utility model, in the art common Technical staff simple change and to replace all be within the scope of protection of the utility model.

Claims

1. a kind of high-breaking miniature breaker, including housing, upper cover, operating mechanism, wink motivation structure, arc initiation device and interrupter cartridge It puts, operating mechanism, wink motivation structure, arc initiation device and arc-control device are built in housing, it is characterised in that：Wink motivation structure include hand Handle, handle button spring move implementation bar wink, and described handle button spring one end is embedded in the latasuture by the handle center hole, the other end Button is stuck on the handle positioning endpoint, and with handle pivot bush unit on the handle locating shaft of the housing, the wink moves reality Bar is applied to be placed in the bottom surface of housing, can both ends movement, upper-lower position positions by shaft end side and housing the circle shelves of the operating mechanism, Move in the wink implement bar be located at handle one end put there are one limiting slot, the raised top-end of the handle, at its lower end puts in the /V In slot, the position of the switch of the handle is respectively at two side walls of the limiting slot；It moves in the wink and implements bar relative limit The position of slot distal end is into bending shape, then the position rolled over stretches out an elasticity and cranks arm, and the elasticity cranks arm end head forming as coupler body, often Stress is tangled in the stake of the shaft end of the housing, moves the other end stop bit for implementing bar the wink in housing side inner wall.

2. high-breaking miniature breaker as described in claim 1, it is characterised in that：The operating mechanism include concave wheel, Cursor, lock wheel and support shaft；Support shaft is mounted in the shaft end stake of housing, is moved in the wink and is implemented bar arranged on operating mechanism The back side of concave wheel, that is, shaft end stake outer rim, the recessed grain of the concave wheel are built-in with torsion spring, and torsion spring one end is locked to described Other end is placed on cursor in the inner wall hole of recessed grain, the boss of the cursor put in in the concave wheel with it is described Concave wheel the support arm that itself can mutually rotate is combined by described torsion spring latching；Through described among the support arm Support shaft, and prolong support shaft and make arcuate movement, the support arm upper end is embraced jointly by the concave wheel and the cursor A track that can contain U-shaped push rod end and the scaling that can have ready conditions, the U-shaped push rod other end head button are formed together In on handle.

3. high-breaking miniature breaker as described in claim 1, it is characterised in that：The arc initiation device is shaping iron plate, should Shaping iron plate is built in housing, and is covered and be embedded in the housing completely by upper cover, the arc initiation device being integrally formed.

4. high-breaking miniature breaker as claimed in claim 3, it is characterised in that：Arc-control device, that is, the arc-extinguish chamber, arc extinguishing It is spark chamber in cover, the arc-extinguish chamber is made of 17 iron plates, and is equidistantly embedded in outline border, and the outline border one side is alternate Through hole is distributed, opposite to be two rows of, the arc-extinguish chamber outline border upper limb abuts arc initiation device close to magnet steel outer wall, lower edge；It is described to go out The outer one side of arc cover back position, that is, housing spark chamber is arranged as the airtube that several shapes differ, and the spark chamber and buckle releaser Cavity is connection.

5. high-breaking miniature breaker as claimed in claim 4, it is characterised in that：Further include moving contact, the moving contact position In the centre of the arc initiation device, housing central section is equipped with riveting axis, and arc leading angle copper piece is around the riveting axis distribution, the arc leading angle Inside it is placed with striking bending iron.

6. high-breaking miniature breaker as claimed in claim 2, it is characterised in that：The lock wheel lower end is stretched out shape arm Bar, described shape armed lever top is hugged vacate half arc trench notch, and the trench notch includes the arcuation wall of the support arm protrusion, The lock wheel does folding and unfolding campaign along the arcuation wall.

7. high-breaking miniature breaker as claimed in claim 6, it is characterised in that：Described shape armed lever one side is placed with is de- Pull rod is detained, described dropout pull rod one end is limited in the convex boundary of pedestal, and back and forth movement, the dropout are done along the convex boundary The pull rod other end is limited in the groove on pedestal border；Thermal release device is contained between the dropout pull rod both ends.