CN105390349A - Bistable permanent magnet moulded case circuit breaker - Google Patents
Bistable permanent magnet moulded case circuit breaker Download PDFInfo
- Publication number
- CN105390349A CN105390349A CN201510961819.9A CN201510961819A CN105390349A CN 105390349 A CN105390349 A CN 105390349A CN 201510961819 A CN201510961819 A CN 201510961819A CN 105390349 A CN105390349 A CN 105390349A
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- China
- Prior art keywords
- connecting rod
- fixed
- dynamic
- determination
- unshakable
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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
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/32—Electromagnetic mechanisms having permanently magnetised part
Abstract
The invention discloses a bistable permanent magnet moulded case circuit breaker. The bistable permanent magnet moulded case circuit breaker comprises an operating mechanism, a quick acting mechanism, a connecting rod mechanism and a main loop; the operating mechanism is connected with the main loop through the connecting rod mechanism; the operating mechanism comprises a movable iron core, a movable iron core connecting rod, a static iron core, an opening coil, a closing coil and a permanent magnet; the movable iron core is fixed on the movable iron core connecting rod and positioned at the inner side of the static iron core; the opening coil and the closing coil are positioned between the static iron core and the movable iron core and arranged at two sides of a middle pole shoe of the static iron core; simultaneously, the permanent magnet is positioned at the end part of the middle pole shoe of the static iron core and positioned outside the movable iron core; the quick acting mechanism comprises a quick acting winding, a copper disc, an iron disc and an iron disc connecting rod; the quick acting winding is fixed in the front of the outside of the static iron core; the copper disc is fixed on the iron disc; the iron disc is fixed on the iron disc connecting rod; the iron disc connecting rod is fixedly connected with one end of the movable iron core connecting rod; and the copper disc is positioned between the iron disc and the quick acting winding. The bistable permanent magnet moulded case circuit breaker disclosed by the invention has the advantage that opening, closing and quick acting functions are completely controlled electrically.
Description
Technical field
the present invention relates to a kind of bistable permanent magnetic breaker of plastic casing, can be used for connecting high-low-voltage electrical equipment major loop, disjunction and protection.
Background technology
at present, breaker of plastic casing adopts manual-operating mechanism to add the form of release substantially, and operating mechanism adopts spring energy-storage, realizes that electric equipment major loop carries out connecting, disjunction and protection; The patent No. is the Electronic control that realized on original manual breaker of plastic casing basis by electric rotating machine energy storage mode of patent " a kind of breaker of plastic casing " of 201510094877.6, and the patent No. is the Electronic control that realized on original manual breaker of plastic casing basis by linear electric motors mode of patent " circuit breaker electric operating mechanism " of 201410829577.3; But above-mentioned patent and other existing patents realizing breaker of plastic casing, be all adopt retain original operating mechanism basis on the form of additional mechanism providing additional operation, although this form remains original manual operation function, but this mode makes original molded case circuit breaker mechanism more complicated, reduce the reliability of breaker of plastic casing, simultaneously on manual-operating mechanism basis, also to buy auxiliary electron controlling organization further, add the burden of user.
Summary of the invention
the present invention seeks to: provide a kind of and can realize the completely automatically controlled bistable permanent magnetic breaker of plastic casing of separating brake, combined floodgate and quick-acting function.
technical scheme of the present invention is: a kind of bistable permanent magnetic breaker of plastic casing, comprises operating mechanism, quick-acting mechanism, linkage, and major loop; Described operating mechanism is connected with described major loop by described linkage;
described operating mechanism comprises dynamic unshakable in one's determination, dynamic connecting rod unshakable in one's determination, fixed core, switching winding, closing coil, and permanent magnet; Described dynamic iron core is fixed on described dynamic connecting rod unshakable in one's determination, and be positioned at inside described fixed core, described switching winding and described closing coil are between described fixed core and dynamic iron core, and be placed in the both sides of pole shoe in the middle of described fixed core, described permanent magnet is positioned at the end of pole shoe in the middle of described fixed core simultaneously, and is positioned at described dynamic outside unshakable in one's determination;
described quick-acting mechanism comprises quick-action winding, copper dish, iron pan, and iron pan connecting rod; Described quick-action winding is fixed on front side of described fixed core outside, described copper dish is fixed on described iron pan, described iron pan is fixed on described iron pan connecting rod, and described iron pan connecting rod is fixedly connected with described dynamic connecting rod one end unshakable in one's determination, and described copper dish is between described iron pan and described quick-action winding.
as preferred technical scheme, described linkage comprises angle spring, drive connecting rod, and follow-up connecting rod; Described dynamic connecting rod end unshakable in one's determination is connected with described drive connecting rod one end by active rotating shaft, the described drive connecting rod other end is connected by limit shaft with described follow-up connecting rod one end, the described follow-up connecting rod other end is located on fixed rotating shaft, and the bending place of described angle spring is fixed on described fixed rotating shaft, its one end is connected with described limit shaft.
as preferred technical scheme, described major loop comprises inlet wire, outlet, connecting line, moving conductive rod, static conductive rod, current sensor, and arc-extinguishing mechanism; Described current sensor is located on described inlet wire, described inlet wire is connected with described moving conductive rod by connecting line, described moving conductive rod is connected with described follow-up connecting rod top by servo axis, and the other end of described angle spring is connected with described moving conductive rod top, and described static conductive rod is connected with described outlet.
as preferred technical scheme, described moving conductive rod end winding support has moving contact, and described static conductive rod end winding support has fixed contact, and described fixed contact is corresponding with described moving contact to be arranged, and described arc-extinguishing mechanism covers the motion path of described moving contact.
as preferred technical scheme, described dynamic iron core, described fixed core and described iron pan are made by permeability magnetic material;
described iron pan connecting rod and described dynamic connecting rod unshakable in one's determination are made by non-magnet material.
as preferred technical scheme, described inlet wire, described connecting line, described moving conductive rod, described static conductive rod, described outlet are made by electric conducting material;
described drive connecting rod and described follow-up connecting rod are made by non-conducting material.
advantage of the present invention is:
1. the present invention is by the acting in conjunction of operating mechanism and quick-acting mechanism, realizes separating brake, combined floodgate and quick-acting function completely automatically controlled, can realize the function used of existing breaker of plastic casing, on this basis, compare existing spring mechanism breaker of plastic casing, simplify the structure, improve reliability;
2. quick-acting mechanism of the present invention and operating mechanism are independently when acting on, and in above-mentioned making process, separating brake process, combined floodgate maintenance stage, all can realize the quick-acting function of circuit breaker.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the invention will be further described:
fig. 1 is the gate-dividing state structural representation of bistable permanent magnetic breaker of plastic casing of the present invention;
fig. 2 is the making process structural representation of bistable permanent magnetic breaker of plastic casing of the present invention;
fig. 3 is the "on" position structural representation of bistable permanent magnetic breaker of plastic casing of the present invention;
wherein: 1 operating mechanism: 11 is dynamic unshakable in one's determination; 12 fixed cores; 13 closing coils; 14 switching windings; 15 permanent magnets; 16 dynamic connecting rods unshakable in one's determination;
2 quick-acting mechanisms: 21 quick-action windings; 22 bronze medal dishes; 23 iron pans; 24 iron pan connecting rods;
3 linkages: 31 jiaos of springs; 32 drive connecting rod; 321 active rotating shafts; 33 follow-up connecting rods; 331 fixed rotating shafts; 332 servo-actuated rotating shafts; 333 limit shafts;
4 major loops: 41 inlet wires; 42 current sensors; 43 connecting lines; 44 moving conductive rods; 441 moving contacts; 45 static conductive rods; 451 fixed contacts; 46 outlets; 47 arc-extinguishing mechanisms.
Embodiment
embodiment: with reference to shown in Fig. 1,2,3, a kind of bistable permanent magnetic breaker of plastic casing, comprises operating mechanism 1, quick-acting mechanism 2, linkage 3, and major loop 4; Operating mechanism 1 is connected with quick-acting mechanism 2, and operating mechanism 1 is in parallel with major loop 4 by linkage 3.
operating mechanism 1 of the present invention comprises dynamic unshakable in one's determination 11, dynamic connecting rod 16 unshakable in one's determination, fixed core 12, switching winding 14, closing coil 13, and permanent magnet 15; Dynamic unshakable in one's determination 11 are fixed on dynamic connecting rod unshakable in one's determination 16, and be positioned at inside fixed core 12, switching winding 14 and closing coil 13 are between fixed core 12 and dynamic unshakable in one's determination 11, and be placed in the both sides of the middle pole shoe of fixed core 12, permanent magnet 15 is positioned at the end of the middle pole shoe of fixed core 12 simultaneously, and is positioned at outside dynamic unshakable in one's determination 11;
quick-acting mechanism 2 of the present invention comprises quick-action winding 21, copper dish 22, iron pan 23, and iron pan connecting rod 24; Quick-action winding 21 is fixed on the outside front side of fixed core 12, and copper dish 22 is fixed on iron pan 23, and iron pan 23 is fixed on iron pan connecting rod 24, and iron pan connecting rod 24 is fixedly connected with dynamic connecting rod 16 one end unshakable in one's determination, and copper dish 22 is between iron pan 23 and quick-action winding 21.
linkage 3 of the present invention comprises angle spring 31, drive connecting rod 32, and follow-up connecting rod 33; Dynamic connecting rod 16 end unshakable in one's determination is connected with drive connecting rod 32 one end by active rotating shaft 321, drive connecting rod 32 other end is connected by limit shaft 333 with follow-up connecting rod 33 one end, follow-up connecting rod 33 other end is located on fixed rotating shaft 331, and the bending place of angle spring 31 is fixed on fixed rotating shaft 331, its one end is connected with limit shaft 333.
major loop 4 of the present invention comprises inlet wire 41, outlet 46, connecting line 43, moving conductive rod 44, static conductive rod 45, current sensor 42, and arc-extinguishing mechanism 47; Current sensor 42 is located on inlet wire 41, inlet wire 41 is connected with moving conductive rod 44 by connecting line 43, moving conductive rod 44 is connected with follow-up connecting rod 33 top by servo-actuated rotating shaft 332, the other end of angle spring 31 is connected with moving conductive rod 44 top, static conductive rod 45 is connected with outlet 46, and moving conductive rod 44 end winding support has moving contact 441, and static conductive rod 45 end winding support has fixed contact 451, fixed contact 441 is corresponding with moving contact 451 to be arranged, and arc-extinguishing mechanism 47 covers the motion path of moving contact 441.
dynamic unshakable in one's determination 11, fixed core 12 of the present invention and iron pan 23 are made by permeability magnetic material, iron pan connecting rod 24 and dynamic connecting rod 16 unshakable in one's determination are made by non-magnet material, inlet wire 41, connecting line 43, moving conductive rod 44, static conductive rod 45, outlet 46 are made by electric conducting material, and drive connecting rod 32 and follow-up connecting rod 33 are made by non-conducting material.
concrete operation method of the present invention is as follows:
(1) with reference to shown in Fig. 1, under gate-dividing state, the moving contact 441 of moving conductive rod 44 is separated with the fixed contact 451 of static conductive rod 45, and dynamic unshakable in one's determination 11 are positioned near quick-acting mechanism 2 side, and rely on the permanent magnetic between dynamic unshakable in one's determination 11 and permanent magnet 15 to keep, be first stable state of the present invention.
(2) with reference to shown in Fig. 2,3, when needs close a floodgate, closing coil 13 passes under forward current independent role or closing coil 13 and switching winding 14 pass into forward current acting in conjunction, dynamic unshakable in one's determination 11, to away from quick-acting mechanism 2 one lateral movement, move connecting rod 16 unshakable in one's determination and drive drive connecting rod 32 to move by active rotating shaft 321, drive connecting rod 32 drives follow-up connecting rod 33 to move by limit shaft 333, follow-up connecting rod 33 is by angle spring 31, fixed rotating shaft 331, the acting in conjunction of servo-actuated rotating shaft 332 and limit shaft 333, moving conductive rod 44 is driven to move downward, realize feed motion, in making process, after moving contact 441 contacts with fixed contact 451, moving conductive rod 44 is separated with limit shaft 333, angle spring 31 pairs of moving conductive rods 44 are relied on to carry out spacing, after contacting with fixed core 12 when dynamic unshakable in one's determination 11, complete making process, after making process completes, all no longer circulating current in closing coil 13 and switching winding 14, operating mechanism 1 relies on the permanent magnetic between dynamic unshakable in one's determination 11 and permanent magnet 15 to keep, be second stable state of the present invention.
(3) with reference to shown in Fig. 1,3, when needs carry out separating brake, switching winding 14 passes under reverse current independent role or closing coil 13 and switching winding 14 all pass into reverse current acting in conjunction, dynamic unshakable in one's determination 11 to quick-acting mechanism 2 one lateral movement, and dynamic connecting rod 16 unshakable in one's determination drives drive connecting rod 32 to move by active rotating shaft 321; Drive connecting rod 32 drives follow-up connecting rod 33 to move by limit shaft 333; By the acting in conjunction of angle spring 31, follow-up connecting rod 33, fixed rotating shaft 331, servo-actuated rotating shaft 332 and limit shaft 333, moving conductive rod 44 is driven to move upward, realize separating brake action, after separating brake process completes, all no longer electric current is needed in closing coil 13 and switching winding 14, operating mechanism 1 relies on the permanent magnetic between dynamic unshakable in one's determination 11 and permanent magnet 15 to keep, and returns to first stable state of the present invention.
(4) with reference to shown in Fig. 1,2,3, when current sensor 42 detects major loop 4 current anomaly or when needing fast shut-off major loop 4, quick-action winding 21 passes into larger electric current, the eddy current that this electric current will cause on copper dish 22, and brings larger eddy current repulsion.Because copper dish 22 is fixed on iron pan 23; iron pan 23 is connected with dynamic unshakable in one's determination 11 of operating mechanism 1 by iron pan connecting rod 24 again; the eddy current repulsion that in quick-action winding 21, electric current produces finally makes dynamic unshakable in one's determination 11 rapidly to a lateral movement of quick-acting mechanism 2; make bistable permanent magnetic breaker of plastic casing of the present invention separating brake rapidly; return to first stable state of the present invention, thus to realize major loop 4 connect the protection act of load.
because quick-acting mechanism 2 and operating mechanism 1 are all independently when acting on, in above-mentioned making process, separating brake process or combined floodgate maintenance stage, the quick-acting function of circuit breaker all can be realized.
above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (6)
1. a bistable permanent magnetic breaker of plastic casing, is characterized in that, comprises operating mechanism, quick-acting mechanism, linkage, and major loop; Described operating mechanism is connected with described major loop by described linkage;
Described operating mechanism comprises dynamic unshakable in one's determination, dynamic connecting rod unshakable in one's determination, fixed core, switching winding, closing coil, and permanent magnet; Described dynamic iron core is fixed on described dynamic connecting rod unshakable in one's determination, and be positioned at inside described fixed core, described switching winding and described closing coil are between described fixed core and dynamic iron core, and be placed in the both sides of pole shoe in the middle of described fixed core, described permanent magnet is positioned at the end of pole shoe in the middle of described fixed core simultaneously, and is positioned at described dynamic outside unshakable in one's determination;
Described quick-acting mechanism comprises quick-action winding, copper dish, iron pan, and iron pan connecting rod; Described quick-action winding is fixed on front side of described fixed core outside, described copper dish is fixed on described iron pan, described iron pan is fixed on described iron pan connecting rod, and described iron pan connecting rod is fixedly connected with described dynamic connecting rod one end unshakable in one's determination, and described copper dish is between described iron pan and described quick-action winding.
2. bistable permanent magnetic breaker of plastic casing according to claim 1, is characterized in that, described linkage comprises angle spring, drive connecting rod, and follow-up connecting rod; Described dynamic connecting rod end unshakable in one's determination is connected with described drive connecting rod one end by active rotating shaft, the described drive connecting rod other end is connected by limit shaft with described follow-up connecting rod one end, the described follow-up connecting rod other end is located on fixed rotating shaft, and the bending place of described angle spring is fixed on described fixed rotating shaft, its one end is connected with described limit shaft.
3. bistable permanent magnetic breaker of plastic casing according to claim 2, is characterized in that, described major loop comprises inlet wire, outlet, connecting line, moving conductive rod, static conductive rod, current sensor, and arc-extinguishing mechanism; Described current sensor is located on described inlet wire, described inlet wire is connected with described moving conductive rod by connecting line, described moving conductive rod is connected with described follow-up connecting rod top by servo axis, and the other end of described angle spring is connected with described moving conductive rod top, and described static conductive rod is connected with described outlet.
4. bistable permanent magnetic breaker of plastic casing according to claim 3, it is characterized in that, described moving conductive rod end winding support has moving contact, described static conductive rod end winding support has fixed contact, described fixed contact is corresponding with described moving contact to be arranged, and described arc-extinguishing mechanism covers the motion path of described moving contact.
5. bistable permanent magnetic breaker of plastic casing according to claim 1, is characterized in that,
Described dynamic iron core, described fixed core and described iron pan are made by permeability magnetic material;
Described iron pan connecting rod and described dynamic connecting rod unshakable in one's determination are made by non-magnet material.
6. bistable permanent magnetic breaker of plastic casing according to claim 3, is characterized in that,
Described inlet wire, described connecting line, described moving conductive rod, described static conductive rod, described outlet are made by electric conducting material;
Described drive connecting rod and described follow-up connecting rod are made by non-conducting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510961819.9A CN105390349A (en) | 2015-12-21 | 2015-12-21 | Bistable permanent magnet moulded case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510961819.9A CN105390349A (en) | 2015-12-21 | 2015-12-21 | Bistable permanent magnet moulded case circuit breaker |
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| Publication Number | Publication Date |
|---|---|
| CN105390349A true CN105390349A (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510961819.9A Pending CN105390349A (en) | 2015-12-21 | 2015-12-21 | Bistable permanent magnet moulded case circuit breaker |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107240533A (en) * | 2017-07-31 | 2017-10-10 | 法泰电器（江苏）股份有限公司 | A kind of double-U-shaped electric pulse of transverse direction is combined operating mechanism breaker of plastic casing |
| CN107248485A (en) * | 2017-07-31 | 2017-10-13 | 法泰电器（江苏）股份有限公司 | A kind of double-U-shaped electric pulse mechanism breaker of plastic casing in longitudinal direction |
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| CN101026041A (en) * | 2007-03-28 | 2007-08-29 | 李乾伟 | Permanent-magnetic driven low-voltage air switch with manual breaker |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107240533A (en) * | 2017-07-31 | 2017-10-10 | 法泰电器（江苏）股份有限公司 | A kind of double-U-shaped electric pulse of transverse direction is combined operating mechanism breaker of plastic casing |
| CN107248485A (en) * | 2017-07-31 | 2017-10-13 | 法泰电器（江苏）股份有限公司 | A kind of double-U-shaped electric pulse mechanism breaker of plastic casing in longitudinal direction |
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Application publication date: 20160309 |