CN206602087U - Circuit breaker and circuit protection device - Google Patents
Circuit breaker and circuit protection device Download PDFInfo
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- CN206602087U CN206602087U CN201720376267.XU CN201720376267U CN206602087U CN 206602087 U CN206602087 U CN 206602087U CN 201720376267 U CN201720376267 U CN 201720376267U CN 206602087 U CN206602087 U CN 206602087U
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- driving section
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- feeler lever
- breaker
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- 210000000515 tooth Anatomy 0.000 description 14
- 238000010586 diagram Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 4
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- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
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Abstract
The utility model provides a circuit breaker and circuit protection device belongs to electrical apparatus technical field. The circuit breaker comprises a shell, a driving device, a tripping device and a contact rod mechanism; the shell is provided with a first contact; the tripping device comprises a tripping body, the tripping body is rotatably connected to the shell, and the driving device is used for driving the tripping body to rotate; the tripping body comprises a first transmission part; the feeler lever mechanism comprises a feeler lever piece, the feeler lever piece is rotatably connected to the shell, the feeler lever piece is provided with a second contact which can be contacted with the first contact, the feeler lever piece comprises a second transmission part, and when the tripping body rotates, the first transmission part can drive the second transmission part to rotate and enable the second contact to be close to or far away from the first contact. When the first transmission part rotates, the second transmission part is driven to move, and through the linkage fit relation of the first transmission part and the second transmission part, the two contacts have larger distance in breaking, the contact part is not easy to generate electric arc, and the using effect is better. The circuit protection device comprises a circuit breaker, which has all the functions of the circuit breaker.
Description
Technical field
The utility model is related to technical field of electric appliances, in particular to a kind of breaker and circuit protection device.
Background technology
Breaker：Can turn on, carry and disjunction normal circuit under the conditions of electric current, also can be in defined improper circuit
Under the conditions of connect, carrying certain time and breaking current a kind of mechanical switch electrical equipment.
Miniature circuit breaker, abbreviation MCB (Micro Circuit Breaker), is during architectural electricity terminal power distribution draws
A kind of most popular terminal protection electrical equipment.Single-phase, three-phase short circuit, overload, overvoltage for below 125A etc. are protected, bag
Include four kinds of monopole 1P, two pole 2P, three pole 3P, quadrupole 4P etc..
Inventor has found that traditional breaker at least has the following disadvantages under study for action：
Electric arc is easily produced at contact, and is difficult to extinguish；
Using effect is poor.
Utility model content
The purpose of this utility model is the provision of a kind of breaker, improves the deficiencies in the prior art, its can by with
The feeler lever part of housing into rotation connection, is realized when the first driving section is rotated, and is driven the motion of the second driving section, is passed through both linkages
Matching relationship, when realizing disjunction, two contacts have larger spacing, and contact position is not allowed to be also easy to produce after electric arc, or generation easily
Extinguish, overall using effect is preferable.Its is reasonable in design, and market application potential is huge.
Another object of the present utility model is the provision of a kind of circuit protection device, and it includes open circuit mentioned above
Device, it has the repertoire of the breaker.
What embodiment of the present utility model was realized in：
Embodiment of the present utility model provides a kind of breaker, and it includes housing, drive device, trip gear and feeler lever
Mechanism, housing has the first contact, and trip gear includes dropout body, and dropout body is rotatablely connected with housing, driving dress
Put for driving dropout body to rotate, dropout body includes the first driving section, feeler lever mechanism includes feeler lever part, and feeler lever part is rotatable
Be connected to housing, feeler lever part has the second contact that can be with the first contact, and feeler lever part includes the second driving section, threads off
When body is rotated, the first driving section can drive the second driving section to rotate and make the second contact closer or far from the first contact.
Specifically, the breaker can be realized when the first driving section is rotated by the feeler lever part that is connected with housing into rotation,
The second driving section is driven to move, by both relations that is linked, when realizing disjunction, two contacts have larger spacing,
Contact position is not allowed easily to extinguish after being also easy to produce electric arc, or generation, and overall using effect is preferable.Its is reasonable in design, and market application is latent
Power is huge.
Optionally, the first driving section includes internal tooth, and the second driving section includes the first external tooth, the first driving section and the second transmission
Portion's internal messing.
Optionally, the first driving section includes circular arc inner surface, and the second driving section includes rotating wheel, the first driving section and second
Driving section inscribe.
Optionally, the gearratio of the first driving section and the second driving section is less than 1.
Optionally, feeler lever mechanism also includes idler gear, and the first driving section includes the second external tooth, and the second driving section includes the
Three external tooths, the second external tooth and idler gear external toothing, idler gear and the 3rd external tooth external toothing.
Optionally, feeler lever mechanism also includes middle runner, and the first driving section includes the first runner, and the second driving section includes the
Two runners, the first runner and middle runner are circumscribed, and middle runner and the second runner are circumscribed.
Optionally, the second contact is located at one end away from the second driving section of feeler lever part.
Optionally, feeler lever part also includes extension, clamping part and contact, and extension is connected and extension with the second driving section
One end away from the second driving section of bending, clamping part and extension is connected, and contact is removably connected to clamping part, and second touches
Point is located at contact.
Optionally, feeler lever part also includes contact, and the second contact is located at contact, with perpendicular to the rotational axis line of feeler lever part
Face on the basis of face, be used for and the plane of the first contact of contact are projected as the first line, the second contact in reference plane
Projection in reference plane and the shortest route of the projection in reference plane of rotational axis line be the second line, the first line
There is angle with the second line.
Embodiment of the present utility model additionally provides a kind of circuit protection device, and it includes breaker mentioned above, its
Repertoire with the breaker.
Compared with prior art, the beneficial effect of the utility model embodiment is：
In summary, the breaker can be realized when the first driving section is rotated by the feeler lever part that is connected with housing into rotation
When, drive the second driving section motion, by both relations that is linked, when realizing disjunction, two contacts have it is larger between
Away from contact position is not allowed easily to extinguish after being also easy to produce electric arc, or generation, and overall using effect is preferable.Its is reasonable in design, market application
Have a high potential.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, it will use below required in embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
Schematic diagram under the first visual angle for the breaker that Fig. 1 provides for the utility model embodiment 1；
Schematic diagram under second of visual angle of the breaker that Fig. 2 provides for the utility model embodiment 1；
Fig. 3 is the gate-dividing state schematic diagram of the feeler lever part shown in Fig. 1；
Fig. 4 is the schematic diagram of the first feeler lever mechanism shown in Fig. 1；
Fig. 5 is the schematic diagram of the feeler lever part shown in Fig. 1；
Fig. 6 is the schematic diagram of second of feeler lever mechanism of the breaker that the utility model embodiment 2 is provided；
Fig. 7 is the schematic diagram of the third feeler lever mechanism of the breaker that the utility model embodiment 3 is provided；
Fig. 8 is the schematic diagram of the 4th kind of feeler lever mechanism of the breaker that the utility model embodiment 4 is provided.
Icon：100- breakers；101- housings；10- drive devices；11- spanners；12- driving members；20- trip gears；
21- dropout bodies；The driving sections of 211- first；22- fine motion parts；23- dropout parts；30- feeler levers mechanism；31- feeler lever parts；310- second
Contact；The driving sections of 311- second；312- extensions；313- clamping parts；314- contacts；The lines of 301- first；The lines of 302- second；
321- idler gears；Runner in the middle of 322-；The contacts of 40- first；50- sensors；60- electromagnetic mechanisms.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Generally here described in accompanying drawing and
The component of the utility model embodiment shown can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit requirement
The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.
, it is necessary to explanation, the orientation of the instruction such as term " on ", " under ", " interior ", " outer " in description of the present utility model
Or position relationship is that, based on orientation shown in the drawings or position relationship, or the utility model product is usually put when using
Orientation or position relationship, are for only for ease of description the utility model and simplify description, rather than indicate or imply signified dress
Put or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the utility model
Limitation.In addition, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that indicating or implying relatively important
Property.
In description of the present utility model, in addition it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set
Put ", " installation ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
Embodiment 1
Refer to Fig. 1 and Fig. 2, present embodiments provide a kind of breaker 100, it include housing 101, drive device 10,
Trip gear 20 and feeler lever mechanism 30；Housing 101 has the first contact 40；Trip gear 20 includes dropout body 21, threads off this
Body 21 is rotatablely connected with housing 101, and drive device 10 is used to drive dropout body 21 to rotate；Dropout body 21 includes first
Driving section 211；Feeler lever mechanism 30 includes feeler lever part 31, and feeler lever part 31 is rotatablely connected with housing 101, and feeler lever part 31 has energy
Enough the second contacts 310 contacted with the first contact 40, feeler lever part 31 includes the second driving section 311, when dropout body 21 is rotated, the
One driving section 211 can drive the second driving section 311 to rotate and make the second contact 310 closer or far from the first contact 40.
Specifically, the breaker 100 can be realized when the first transmission by rotating the feeler lever part 31 being connected with housing 101
When portion 211 is rotated, the second driving section 311 is driven to move, by both relations that is linked, when realizing disjunction, two contacts
With larger spacing, contact position is not allowed easily to extinguish after being also easy to produce electric arc, or generation, and overall using effect is preferable.It is designed
Rationally, market application potential is huge.
The overall structure of breaker 100 includes drive device 10, trip gear 20, feeler lever mechanism 30, sensor 50 and electricity
Magnetic mechanism 60.Above-mentioned structure is all connected to housing 101.
Fig. 3 is refer to, and combines Fig. 1 and Fig. 2, drive device 10 includes spanner 11 and driving member 12, and trip gear 20 is wrapped
Dropout body 21, dropout part 23 and fine motion part 22 are included, dropout body 21 and spanner 11 are connected by driving member 12, spanner 11, biography
Moving part 12, dropout body 21 and housing 101 constitute four-bar mechanism.When spanner 11 is rotated, driving member 12 is driven, makes dropout body
21 rotate.
Dropout part 23 is fixedly connected or is integrally formed with dropout body 21, and fine motion part 22 is rotatablely connected with dropout body
21, in making process, fine motion part 22 abuts dropout part 23 all the time.When needing disjunction, fine motion part 22 is de- relative to dropout part 23
From being also associated with back-moving spring between dropout body 21 and housing 101, in the presence of back-moving spring, realize separating brake.
Specific principle is that after spanner 11 closes a floodgate, the first contact 40 contacts and electrically connected, fine motion with the second contact 310
Part 22 abuts electromagnetic mechanism 60, and the detection of sensor 50 is by electric current, when reaching that electromagnetic mechanism 60 promotes fine motion part when needing disjunction
22, fine motion part 22 is departed from relative to dropout part 23, dropout body 21 resets, and resetted with wrench 11.In dropout body 21
Breaking function is realized away from the first contact 40 in the process of reset, the second contact 310.
Fig. 4 is refer to, optionally, the first driving section 211 includes internal tooth, and the second driving section 311 includes the first external tooth, first
The internal messing of 211 and second driving section of driving section 311.
That is the rotation side of dropout body 21 and feeler lever part 31 can be realized by the cooperation of internal gear and external gear
To consistent all the time.
The dropout body 21 can be as being driving link, and the feeler lever part 31 can be as being driven member, because driving link is adopted
Designed with internal tooth, driven member is designed using external tooth, the gearratio of the mechanism is less than 1 all the time.That is the mechanism belongs to
The linear velocity of acceleration mechanism, driving link and driven member is identical, radius of the radius always greater than driven member of driving link, therefore should be from
Angular speed of the angular speed of moving part always greater than driving link.In other words, when driving link rotates smaller angle, driven member can
Rotate larger angle.
To sum up, when the first driving section 211 is rotated, the second driving section 311 is driven to rotate, first driving section 211 is only needed to
Less angle is rotated, the second driving section 311 is can be achieved with and rotates larger angle.After disjunction, it can realize that increase first is touched
Spacing between the contact 310 of point 40 and second.
Relative to prior art, the mechanism can finally realize the spacing ＞ between the first contact 40 and the second contact 310
20mm, it is to avoid the generation of electric arc, or the electric arc produced extinguish immediately, and it greatly improves the disjunction of whole breaker 100
Ability.
Optionally, the second contact 310 is located at one end away from the second driving section 311 of feeler lever part 31.
Second contact 310 is away from the second driving section 311, according to arc length calculation formula：L=α (radian) × r (radius),
When the second driving section 311 rotates identical angle, the position more remote relative to its rotational axis line, the arc length of rotation is longer.
That is, it can increase the spacing between the first contact 40 and the second contact 310 after disjunction.
Fig. 5 is refer to, optionally, feeler lever part 31 also includes extension 312, clamping part 313 and contact 314, extension 312
It is connected with the second driving section 311 and extension 312 is bent, clamping part 313 and remote second driving section 311 of extension 312
One end is connected, and contact 314 is removably connected to clamping part 313, and the second contact 310 is located at contact 314.
By removably connecting, it is easy to the installation and maintenance of contact 314.
Extension 312 can play the spacing between extension contact 314 to the second driving section 311.
Optionally, feeler lever part 31 also includes contact 314, and the second contact 310 is located at contact 314, with perpendicular to feeler lever part 31
Rotational axis line face on the basis of face, the projection for the plane that is contacted with the first contact 40 in reference plane of contact 314
For the first line 301, the projection in reference plane of the second contact 310 and the projection in reference plane of rotational axis line are most
Short line is the second line 302, and the first line 301 and the second line 302 have angle.
That is, the clamping part 313 is inclined relative to extension 312, it is described with the relative position in Fig. 5,
It is the position after disjunction shown in figure, first contact 40 is not in alignment with the second contact 310 after disjunction, reduces electric arc
Generation rate.In the presence of extension 312, after disjunction, the spacing between two contacts can be greatly increased.It is overall to use effect
Fruit is preferably.
According to a kind of breaker 100 of the utility model embodiment offer, the operation principle of breaker 100 is：
Feeler lever part 31 is individually designed, it is rotatablely connected with housing 101, the is driven by the first driving section 211
Two driving sections 311, rotate the feeler lever part 31, are acted on by the internal messing of internal gear and external gear, dropout body 21 rotate compared with
Small angle, just can realize that feeler lever part 31 rotates larger angle, while driving the second contact 310 to move larger scope.Point
Have no progeny, the spacing between the second contact 310 and the first contact 40 can be greatly increased.
By increasing spacing, the incidence of electric arc can be reduced, or can quickly make the arc extinction of generation.Entirety is used
Effect is preferable.
Embodiment 2
Fig. 6 is refer to, the present embodiment also provides a kind of breaker 100, and the technical scheme that embodiment 1 is described is equally applicable
In the present embodiment, description is not repeated in the published technical scheme of embodiment 1.
Specifically, the present embodiment and the difference of embodiment 1 are, the first driving section 211 includes circular arc inner surface, and second passes
Dynamic portion 311 includes rotating wheel, the first driving section 211 and the inscribe of the second driving section 311.
The difference of the present embodiment and embodiment 1 is that the structure in embodiment 1 is passed by the way of gear engagement
It is dynamic.The present embodiment is driven by the friction between rotating wheel and circular arc inner surface.
Transmission is realized in first driving section 211 and the second driving section 311 by rubbing, and can equally realize after disjunction, increases
Spacing between two contacts.
Embodiment 3
Fig. 7 is refer to, the present embodiment also provides a kind of breaker 100, and the technical scheme that embodiment 1 is described is equally applicable
In the present embodiment, description is not repeated in the published technical scheme of embodiment 1.
Specifically, the present embodiment and the difference of embodiment 1 are, the transmission of the first driving section 211 and the second driving section 311
Than less than 1.
Optionally, feeler lever mechanism 30 also includes idler gear 321, and the first driving section 211 includes the second external tooth, the second transmission
Portion 311 includes the 3rd external tooth, the second external tooth and the external toothing of idler gear 321, the external tooth external toothing of idler gear 321 and the 3rd.
Idler gear 321 plays a part of steering, and it ensure that turn of the first driving section 211 and the second driving section 311
Dynamic direction is consistent.Because the gearratio of the driving section 311 of the first driving section 211 and second is less than 1, that is to say, that whole mechanism
Belong to acceleration mechanism, identical technique effect can be played.
Need exist for realize using accelerating gear group in explanation, the present embodiment.Overall using effect compared with
It is good.
Embodiment 4
Fig. 8 is refer to, the present embodiment also provides a kind of breaker 100, and the technical scheme that embodiment 3 is described is equally applicable
In the present embodiment, description is not repeated in the published technical scheme of embodiment 3.
Specifically, the present embodiment and the difference of embodiment 3 are, feeler lever mechanism 30 also includes middle runner 322, and first passes
Dynamic portion 211 includes the first runner, and the second driving section 311 includes the second runner, and the first runner and middle runner 322 are circumscribed, middle
Runner 322 and the second runner are circumscribed.
The difference of the present embodiment and embodiment 3 is that the structure in embodiment 3 is passed by the way of gear engagement
It is dynamic.The present embodiment is driven by the friction of the first driving section 211, the middle driving section 311 of runner 322 and second.
Middle runner 322 plays a part of steering, and it ensure that turn of the first driving section 211 and the second driving section 311
Dynamic direction is consistent.Because the gearratio of the driving section 311 of the first driving section 211 and second is less than 1, that is to say, that whole mechanism
Belong to acceleration mechanism, identical technique effect can be played.
Transmission is realized in first driving section 211 and the second driving section 311 by rubbing, and can equally realize after disjunction, increases
Spacing between two contacts.
Need exist for explanation, whole mechanism can by the first runner, the middle runner of runner 322 and second it is direct
Transmission is realized in contact, can also use V belt translation.
Embodiment 5
The present embodiment also provides a kind of circuit protection device, and it includes breaker 100 mentioned above, breaker 100
Structure may be referred to embodiment 1-4, the circuit protection device have breaker 100 institute it is functional.
General circuit protection device often sets multiple breakers 100 to carry out operation, it is ensured that the normal work of circuit.
In summary, the utility model provides a kind of breaker 100, the breaker 100 can by with 101 turns of housing
The feeler lever part 31 of dynamic connection, is realized when the first driving section 211 is rotated, and is driven the second driving section 311 to move, is passed through both connection
Dynamic matching relationship, when realizing disjunction, two contacts have larger spacing, and contact position, which is not allowed to be also easy to produce after electric arc, or generation, to hold
Easily extinguish, overall using effect is preferable.Its is reasonable in design, and market application potential is huge.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (10)
1. a kind of breaker, it is characterised in that including housing, drive device, trip gear and feeler lever mechanism；
The housing has the first contact；
The trip gear includes dropout body, and the dropout body is rotatablely connected with the housing；
The drive device is used to drive the dropout body to rotate；
The dropout body includes the first driving section；
The feeler lever mechanism includes feeler lever part, and the feeler lever part is rotatablely connected with the housing, and the feeler lever part has energy
Enough the second contacts with first contact, the feeler lever part includes the second driving section, when the dropout body is rotated, institute
Stating the first driving section can drive second driving section to rotate and make second contact closer or far from first contact.
2. breaker according to claim 1, it is characterised in that first driving section includes internal tooth, described second passes
Dynamic portion includes the first external tooth, first driving section and second driving section internal messing.
3. breaker according to claim 1, it is characterised in that first driving section includes circular arc inner surface, described
Second driving section includes rotating wheel, first driving section and second driving section inscribe.
4. breaker according to claim 1, it is characterised in that the biography of first driving section and second driving section
Dynamic ratio is less than 1.
5. breaker according to claim 3, it is characterised in that the feeler lever mechanism also includes idler gear, described the
One driving section includes the second external tooth, and second driving section is included outside the 3rd external tooth, second external tooth and the idler gear
Engagement, the idler gear and the 3rd external tooth external toothing.
6. breaker according to claim 3, it is characterised in that the feeler lever mechanism also includes middle runner, described the
One driving section includes the first runner, and second driving section is included outside the second runner, first runner and the middle runner
Cut, the middle runner and second runner are circumscribed.
7. the breaker according to claim any one of 1-6, it is characterised in that second contact is located at the feeler lever part
Remote second driving section one end.
8. the breaker according to claim any one of 1-6, it is characterised in that the feeler lever part also includes extension, folder
Portion and contact are held, the extension is connected with second driving section and the extension is bent, and the clamping part prolongs with described
One end connection of remote second driving section in long portion, the contact is removably connected to the clamping part, described second
Contact is located at the contact.
9. the breaker according to claim any one of 1-6, it is characterised in that the feeler lever part also includes contact, described
Second contact is located at the contact, the face on the basis of the face perpendicular to the rotational axis line of the feeler lever part, the use of the contact
In being projected as the first line in the reference plane with the plane of first contact, second contact described
The shortest route of projection and the projection in the reference plane of the rotational axis line in reference plane is the second line, described
First line has angle with second line.
10. a kind of circuit protection device, it is characterised in that including the breaker described in claim any one of 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720376267.XU CN206602087U (en) | 2017-04-11 | 2017-04-11 | Circuit breaker and circuit protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720376267.XU CN206602087U (en) | 2017-04-11 | 2017-04-11 | Circuit breaker and circuit protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206602087U true CN206602087U (en) | 2017-10-31 |
Family
ID=60143916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720376267.XU Active CN206602087U (en) | 2017-04-11 | 2017-04-11 | Circuit breaker and circuit protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206602087U (en) |
-
2017
- 2017-04-11 CN CN201720376267.XU patent/CN206602087U/en active Active
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