CN105244241B - Breaker of plastic casing - Google Patents
Breaker of plastic casing Download PDFInfo
- Publication number
- CN105244241B CN105244241B CN201510711233.7A CN201510711233A CN105244241B CN 105244241 B CN105244241 B CN 105244241B CN 201510711233 A CN201510711233 A CN 201510711233A CN 105244241 B CN105244241 B CN 105244241B
- Authority
- CN
- China
- Prior art keywords
- breaker
- rotating shaft
- arc
- cover
- moving contact
- Prior art date
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
-
- 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
-
- 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
- H01H73/22—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 having electrothermal release and no other automatic release
Landscapes
- Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The present invention relates to a kind of breaker of plastic casing.The problem of mainly solving existing breaker of plastic casing arc-extinguishing not strong, it is impossible to show breaker break-make situation, and be not provided with standby cut-off breaker component.The breaker of plastic casing, it includes cover, base, dynamic contact mechanism, operating mechanism, arc-chutes, rotating shaft and double golden structures, and the cover is fixedly connected to form hollow structure inside with the base with screw fashion；The display lamp of cover button and display circuit break-make situation of the cover provided with urgent disconnecting circuit；Dynamic contact mechanism is provided with the middle part of the base；The dynamic contact mechanism is made up of three moving contacts, three moving contact racks and moving contact rotating shaft；The striking portion of pilot arc is provided with the moving contact.The breaker of plastic casing arc extinction performance is high, easy to use, safe, with low cost, and functional reliability is high, and service life is long, affected by environment small, it is easy to promote.
Description
Technical field
The present invention relates to low-voltage circuit breaker field, and in particular to a kind of breaker of plastic casing.
Background technology
It is seen everywhere in electric product exhibition and electrical equipment in the market, low-voltage circuit breaker, particularly mold cased circuit breaker times
Favored.Mold cased circuit breaker has two sections of dynamic defencive functions of overload long delay, short-circuit wink, can also with Electrical leakage, measurement,
The modular units such as electricity behaviour are used cooperatively.In low-voltage distribution system, commonly use it and do limit switch or branch switch, instead of over
Conventional fuse and knife switch.
Breaker of plastic casing is also referred to as molded case circuit breaker, and breaker of plastic casing is by contact, arc extinguishing device, electrical apparatus release and behaviour
Make mechanism etc. to be incorporated into a plastic casing, do not consider maintenance typically, use the protection switch with making branch road.Arc extinguishing device has
There is the structure that multiple grids be arranged in parallel.Grid absorbs the electric current produced during tripping, so that arc extinguishing.
However, existing common breaker of plastic casing is that the electric arc sub-sectional cooling entered in arc extinguishing device is acted on into arc extinguishing,
The electric arc for the arc extinguishing device being introduced into can not arc extinguishing well so that arc quenching effect is not obvious, while existing breaker is in work
Breaker opening and closing of situation can not be accurately shown when making, and existing breaker has that the outlet of access circuit is needed
Disconnecting circuit is wanted, but functional part breaks down and is unable to disconnecting circuit situation, there is very big hidden danger.
The content of the invention
In order to overcome the shortcomings of background technology, the present invention provides a kind of breaker of plastic casing, mainly solves existing plastic housing
Breaker arc extinguishing is not strong, it is impossible to show breaker break-make situation, and the problem of be not provided with standby cut-off breaker component, should
Breaker of plastic casing is simple and reasonable, by setting striking portion to improve arc extinction performance on dynamic contact mechanism, by cover
Set display lamp to show breaker break-make situation, and cover button in case of emergency disconnecting circuit is set, which greatly enhances
Breaker of plastic casing overall performance and functional reliability, the breaker of plastic casing arc extinction performance are high, easy to use, safe,
With low cost, functional reliability is high, and service life is long, affected by environment small, it is easy to promote.
The technical solution adopted in the present invention is：A kind of breaker of plastic casing, it includes cover, base, dynamic contact mechanism, behaviour
Make mechanism, arc-chutes, rotating shaft and double golden structures, the cover is fixedly connected to form inner hollow with the base with screw fashion
Structure；The display lamp of cover button and display circuit break-make situation of the cover provided with urgent disconnecting circuit；The base
Middle part is provided with dynamic contact mechanism；The dynamic contact mechanism is made up of three moving contacts, three moving contact racks and moving contact rotating shaft；
The striking portion of pilot arc is provided with the moving contact；Being provided with above the dynamic contact mechanism is used to control dynamic contact mechanism to move
The arc-chutes for arc extinguishing are provided with the left of the operating mechanism of work, the dynamic contact mechanism；Being provided with the right side of the operating mechanism is used for
The rotating shaft acted with pneumatic operating mechanism；The double golden structures constituted on the right side of the rotating shaft provided with bimetal leaf；The cover button position
On the right side of the cover and above the rotating shaft；The display lamp is located on the left of the cover；The cover, which is provided with, is used for institute
The spanner through hole that operating mechanism passes through is stated, the air-vent for accelerating the breaking inner air flow of plastic housing connects for being fixed with base
The upper installing hole connect and the U-shaped mouth for being easy to breaker of plastic casing wiring；The base left and right ends are respectively provided with lower mounting hole and wiring
Terminal；The chassis left side is provided with three long terminal plates；Shorting stub plate is provided with the right side of the base；The long terminal plate is provided with
The flash barrier of hole and the static contact for being engaged with the moving contact；The shorting stub plate is provided with the baffle plate of hole；Institute
State moving contact and form portion of being association of activity and inertia with the static contact；The striking portion extends toward arc-chutes direction；Set on the moving contact
There is the elastic component being connected with the moving contact rack；Three moving contact racks are fixedly connected by the moving contact rotating shaft；
The operating mechanism is provided with the spanner by the spanner through hole, pins the lock of the rotating shaft, departs from for the rotating shaft
The tripping of locking-in state also has the action link rod being flexibly connected with the moving contact rack；The arc-chutes are by multi-disc is parallel but face
Product does not wait the arc extinguishing grid pieces and two panels in portion of being association of activity and inertia described in opening direction to be set in parallel in the arc extinguishing catch on both sides；The arc extinguishing
Grid end is provided with arc extinguishing groove；The arc-chutes are located above the long terminal plate and on the right side of the flash barrier；The rotating shaft
Provided with the dropout plate being engaged with double golden structures, in the button panel and rotating shaft that are interacted on rear side of rotating shaft with the cover button
Between latch the bayonet socket that is engaged with described；The bimetal leaf connects the shorting stub plate and is fixedly connected；The bimetal leaf with
The dropout plate interaction.
The beneficial effects of the invention are as follows：Due to taking above-mentioned technical proposal, the breaker of plastic casing is simple and reasonable, passes through
Striking portion is set to improve arc extinction performance on dynamic contact mechanism, by setting display lamp to show breaker break-make feelings on cover
Condition, and cover button in case of emergency disconnecting circuit is set, can which greatly enhances breaker of plastic casing overall performance and work
By property, the breaker of plastic casing arc extinction performance is high, easy to use, safe, with low cost, and functional reliability is high, uses
Long lifespan is affected by environment small, it is easy to promote.
Brief description of the drawings
Fig. 1 is internal structure schematic diagram of the invention.
Fig. 2 is removal cover schematic diagram of the invention.
Fig. 3 is overall schematic of the invention.
Fig. 4 is dynamic contact mechanism schematic diagram of the invention.
Fig. 5 is arc-chutes schematic diagram of the invention.
Fig. 6 is operating mechanism schematic diagram of the invention.
Fig. 7 is rotating shaft schematic diagram of the invention.
Fig. 8 is cover schematic diagram of the invention.
100, cover in figure；110th, cover button；120th, display lamp；130th, spanner through hole；140th, air-vent；150th, upper peace
Fill hole；160th, U-shaped mouth；200th, base；210th, lower mounting hole；220th, binding post；230th, long terminal plate；231st, flash barrier；
232nd, static contact；240th, shorting stub plate；241st, baffle plate；300th, dynamic contact mechanism；310th, moving contact；311st, striking portion；312nd, bullet
Property part；320th, three moving contact racks；330th, moving contact rotating shaft；400th, operating mechanism；410th, spanner；420th, latch；430th, jump
Button；440th, action link rod；500th, arc-chutes；510th, arc extinguishing grid pieces；511st, arc extinguishing groove；520 arc extinguishing catch；600th, rotating shaft；
610th, dropout plate；620th, button panel；630th, bayonet socket；700th, double golden structures；710th, bimetal leaf.
Embodiment
Embodiments of the present invention is further illustrated below in conjunction with the accompanying drawings：
As shown in Fig. 1 to Fig. 8, a kind of breaker of plastic casing, it includes cover 100, base 200, dynamic contact mechanism 300, behaviour
Make mechanism 400, arc-chutes 500, rotating shaft 600 and double golden structures 700；
The cover 100 is fixedly connected to form hollow structure inside with the base 200 with screw fashion；The cover
The display lamp 120 of 100 cover buttons 110 and display circuit break-make situation provided with urgent disconnecting circuit；In the base 200
Portion is provided with dynamic contact mechanism 300；The dynamic contact mechanism 300 is by three moving contacts 310, three moving contact racks 320 and moves tactile
Head rotating shaft 330 is constituted；The striking portion 311 of pilot arc is provided with the moving contact 310；The top of dynamic contact mechanism 300
Provided with the operating mechanism 400 for controlling dynamic contact mechanism 300 to act, the left side of dynamic contact mechanism 300, which is provided with, is used for arc extinguishing
Arc-chutes 500；The right side of operating mechanism 400 is provided with the rotating shaft 600 for being used for acting with pneumatic operating mechanism 400；The rotating shaft
Double golden structures 700 that 600 right sides are constituted provided with bimetal leaf 710；
The cover button 110 is located at the right side of cover 100 and the top of the rotating shaft 600；The display lamp 120 is located at
The left side of cover 100；The cover 100, which is provided with, is used for the spanner through hole 130 that the operating mechanism 400 passes through, for adding
The air-vent 140 of the breaking inner air flow of fast plastic housing, for the upper installing hole 150 being fixedly connected with base and is easy to plastic housing breaking
The U-shaped mouth 160 of device wiring；
The left and right ends of base 200 are respectively provided with lower mounting hole 210 and binding post 220；The chassis left side is provided with three
Individual long terminal plate 230；Shorting stub plate 240 is provided with the right side of the base；
Flash barrier 231 of the long terminal plate 230 provided with hole and the static contact for being engaged with the moving contact
232；The shorting stub plate 240 is provided with the baffle plate 241 of hole；
The moving contact 310 forms portion of being association of activity and inertia with the static contact 232；The striking portion 311 is toward the side of arc-chutes 500
To extension；The moving contact 310 is provided with the elastic component 312 being connected with the moving contact rack 320；Three moving contact branch
Frame 320 is fixedly connected by the moving contact rotating shaft 330；
The operating mechanism 400 is provided with the spanner 410 by the spanner through hole 130, pins the lock of the rotating shaft 600
Button 420, the tripping 430 for departing from locking-in state for the rotating shaft 600 also has what is be flexibly connected with the moving contact rack 320 to move
Make connecting rod 440；
The arc-chutes 500 by multi-disc is parallel but area not etc. opening is not association of activity and inertia the arc extinguishing grid pieces 510 in portion described in
The arc extinguishing catch 520 on both sides is set in parallel in two panels；The end of arc extinguishing grid pieces 510 is provided with arc extinguishing groove 511；The arc extinguishing
Room 500 is located at the top of long terminal plate 230 and the right side of the flash barrier 231；
The rotating shaft 600 is provided with the dropout plate 610 being engaged with double golden structures 700, the rear side of rotating shaft 600 and the cover
The bayonet sockets 630 that the button panel 620 and the centre of rotating shaft 600 that button 110 interacts are engaged with the lock 420；
The bimetal leaf 710 connects the shorting stub plate 240 and is fixedly connected；The bimetal leaf 710 is threaded off with described
Plate 610 interacts.
Its course of work is as described below：When the spanner 410 of the operating mechanism 400 on breaker of plastic casing is in closure,
The action link rod 440 makes the moving contact 310 contact closure with the static contact 232, makes closing of circuit, closes moment, institute
Display lamp 120 is stated to light until circuit disconnects, while the bayonet socket 630 in the rotating shaft 600 makes electricity by the pinning of lock 420
Road is kept closed；
When short circuit or high current occur for circuit, double golden structures 700 are heated to be bent to the dropout plate 610, is threaded off
Plate 610 drives rotating shaft 600 to rotate to depart from locking-in state, and the tripping 430 and action link rod 440 act, make moving contact 310 with it is quiet
Contact 232 is separated, and circuit disconnects, and display lamp 120 extinguishes, and by striking portion 311 electric arc is introduced into arc extinguishing in the moment of disconnection
In room 500, arc-chutes 500 are by electric arc sub-sectional cooling arc extinguishing；
Off-state is changed to when the spanner 410 is acted from closure state, the action of operating mechanism 400 makes dynamic contact mechanism
300 actions, disconnect circuit, and the electric arc that striking portion 311 will be switched off moment generation is introduced into arc extinguishing in arc-chutes 500 while display lamp
120 extinguish；If occur double golden structures 700 and spanner 410 all can not disconnecting circuit when, press the cover button 110, described turn
Axle 600 is acted, and is made the action of operating mechanism 400 drive dynamic contact mechanism 300 to act, is finally disconnected circuit, the electric arc of generation
Into in arc-chutes 500.
Every technical staff's notice：Although the present invention is described according to above-mentioned embodiment, of the invention
Invention thought be not limited to that invention, the repacking of any utilization inventive concept will all include this patent protection of the patent right
In the range of.
Claims (6)
1. a kind of breaker of plastic casing, including cover, base, dynamic contact mechanism, operating mechanism, arc-chutes, rotating shaft and double golden structures,
It is characterized in that：The cover is fixedly connected to form hollow structure inside with the base with screw fashion；Set on the cover
There are the cover button of urgent disconnecting circuit and the display lamp of display circuit break-make situation；Moving contact machine is provided with the middle part of the base
Structure；The dynamic contact mechanism is made up of three moving contacts, three moving contact racks and moving contact rotating shaft；Set on the moving contact
There is the striking portion of pilot arc；The operating mechanism for being used for controlling dynamic contact mechanism to act, institute are provided with above the dynamic contact mechanism
State the arc-chutes being provided with the left of dynamic contact mechanism for arc extinguishing；Being provided with the right side of the operating mechanism is used for band pneumatic operating mechanism action
Rotating shaft；The double golden structures constituted on the right side of the rotating shaft provided with bimetal leaf；The cover button be located at the cover on the right side of and
Above the rotating shaft；The display lamp is located on the left of the cover；The cover, which is provided with, is used for what the operating mechanism passed through
Spanner through hole, the air-vent for accelerating the breaking inner air flow of plastic housing, for the upper installing hole that is fixedly connected with base and just
In the U-shaped mouth of breaker of plastic casing wiring；The operating mechanism is provided with the spanner by the spanner through hole, pins the rotating shaft
Lock, the tripping for departing from locking-in state for the rotating shaft also has the action link rod that is flexibly connected with the moving contact rack；
The rotating shaft is provided with the button panel interacted on rear side of the dropout plate being engaged with double golden structures, rotating shaft with the cover button
With the bayonet socket being engaged in the middle of rotating shaft with the lock.
2. breaker of plastic casing according to claim 1, it is characterised in that：The base left and right ends are respectively provided with lower mounting hole
And binding post；The chassis left side is provided with three long terminal plates；Shorting stub plate is provided with the right side of the base.
3. breaker of plastic casing according to claim 2, it is characterised in that：The long terminal plate is provided with the flash barrier of hole
With the static contact for being engaged with the moving contact；The shorting stub plate is provided with the baffle plate of hole.
4. breaker of plastic casing according to claim 3, it is characterised in that：The moving contact and static contact formation sound
Joint portion；The striking portion extends toward arc-chutes direction；The moving contact is provided with the elasticity being connected with the moving contact rack
Part；Three moving contact racks are fixedly connected by the moving contact rotating shaft.
5. breaker of plastic casing according to claim 4, it is characterised in that：The arc-chutes are by multi-disc is parallel but area
Be association of activity and inertia described in the arc extinguishing grid pieces and two panels in portion of opening are set in parallel in the arc extinguishing catch on both sides；The arc extinguishing grid pieces end
End is provided with arc extinguishing groove；The arc-chutes are located above the long terminal plate and on the right side of the flash barrier.
6. breaker of plastic casing according to claim 2, it is characterised in that：The bimetal leaf connects the shorting stub plate and consolidated
Fixed connection；The bimetal leaf interacts with the dropout plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510711233.7A CN105244241B (en) | 2015-10-28 | 2015-10-28 | Breaker of plastic casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510711233.7A CN105244241B (en) | 2015-10-28 | 2015-10-28 | Breaker of plastic casing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105244241A CN105244241A (en) | 2016-01-13 |
| CN105244241B true CN105244241B (en) | 2017-08-04 |
Family
ID=55041842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510711233.7A Active CN105244241B (en) | 2015-10-28 | 2015-10-28 | Breaker of plastic casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105244241B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4679016A (en) * | 1986-01-08 | 1987-07-07 | General Electric Company | Interchangeable mechanism for molded case circuit breaker |
| CN2333086Y (en) * | 1997-12-29 | 1999-08-11 | 浙江东华电器厂 | Intelligent plastic hull breaker |
| CN2888637Y (en) * | 2005-09-07 | 2007-04-11 | 向永川 | Multifunctional switch |
| CN101188178B (en) * | 2007-11-30 | 2011-01-19 | 赵建清 | Electric leakage current breaker |
| CN204516709U (en) * | 2015-04-21 | 2015-07-29 | 常安集团有限公司 | Breaker of plastic casing |
| CN205092209U (en) * | 2015-10-28 | 2016-03-16 | 浙江爱德利电器股份有限公司 | Moulded case circuit breaker |
-
2015
- 2015-10-28 CN CN201510711233.7A patent/CN105244241B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105244241A (en) | 2016-01-13 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Xinguang Road Xinguang industrial zone of Liushi town of Yueqing City, Zhejiang province 325600 No. 122 Building No. 1 Applicant after: Zhejiang love Polytron Technologies Inc Address before: 325600, Zhejiang, Wenzhou province Yueqing city on the top of the Ao Ao group building Applicant before: ZHEJIANG AIDELI ELECTRICAL APPLIANCE CO., LTD. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |