SI24729A - A mechanism for speed independent switching on contacts - Google Patents
A mechanism for speed independent switching on contacts Download PDFInfo
- Publication number
- SI24729A SI24729A SI201400195A SI201400195A SI24729A SI 24729 A SI24729 A SI 24729A SI 201400195 A SI201400195 A SI 201400195A SI 201400195 A SI201400195 A SI 201400195A SI 24729 A SI24729 A SI 24729A
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- Slovenia
- Prior art keywords
- contact
- lever
- spring
- bridge
- contacts
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/504—Manual reset mechanisms which may be also used for manual release provided with anti-rebound means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
- H01H5/04—Energy stored by deformation of elastic members
- H01H5/06—Energy stored by deformation of elastic members by compression or extension of coil springs
- H01H5/08—Energy stored by deformation of elastic members by compression or extension of coil springs one end of spring transmitting movement to the contact member when the other end is moved by the operating part
-
- 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
- H01H73/36—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 electromagnetic release and no other automatic release
- H01H73/38—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 electromagnetic release and no other automatic release reset by lever
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
- H01H2001/508—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position with mechanical means to prevent return/reverse movement of movable contact once opening or closing cycle has started
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/501—Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker
- H01H2071/502—Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker with direct contact between manual operator and welded contact structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/505—Latching devices between operating and release mechanism
- H01H2071/506—Latching devices between operating and release mechanism using balls or rollers in the latching device
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Mehanizem po izumu je izveden tako, da je vzmet (5) vpeta na vzvod (2) in na ročico (6), tako da zagotavlja pri delovanju vklopne sile (1) na vzvod (2) z raztezanjem hranjenje energije, ki jo tik pred sklenitvijo kontakta (8), ki je premično vpet v polovni mostiček (7), s kontaktom (9) odda in zagotovi neodvisno od vklopne sile (1) stik kontaktov in stisk kontaktne vzmeti (14). Takšno gibanje zagotavlja ležajno kolesce (3), ki potuje po naslonu polovnega mostička (7).The mechanism according to the invention is arranged in such a way that the spring (5) is fixed to the lever (2) and to the lever (6) in such a way that, when the activation force (1) is applied to the lever (2), the feeding of the energy immediately before closing the contact (8) which is movably mounted in the pole (7), releases the contact with the contact (9) and ensures contact of the contacts and the contact of the contact spring (14) independently of the activation force (1). This movement provides a bearing roller (3), which travels along the backbone of the half-bridge (7).
Description
MEHANIZEM ZA HITROSTNO NEODVISNO VKLAPLAJNJE KONTAKTOVMECHANISM FOR SPEED INDEPENDENT CONTACT SWITCHING
Predmet izuma je mehanizem za hitrostno neodvisno vklapljanje kontaktov za vklapljanje električnih bremen v zaščitnih stikalnih napravah, pri katerem mehanizem in izvedba kontaktov omogočata delovanje osnovne funkcije, to je vklapljanje in izklapljanje kontaktov, s pomočjo ročno gnanega vzvoda. Predloženi izum sodi v razred H01H71/10, H01H71/52, H01H5/06 mednarodne patentne klasifikacije.The subject of the invention is a mechanism for speed-independent switching of contacts for switching on electrical loads in protective switchgear, in which the mechanism and implementation of the contacts enable the basic function, that is, switching on and off the contacts, by means of a manually operated lever. The present invention belongs to Class H01H71 / 10, H01H71 / 52, H01H5 / 06 of the International Patent Classification.
Tehnični problem, ki ga zadovoljivo rešuje predložena izvedba mehanizma je takšna konstrukcija, ki omogoča ponavljajočo in od gumba neodvisno hitrost v trenutku stikanja kontaktov.The technical problem that is satisfactorily solved by the proposed embodiment of the mechanism is a construction that allows a repetitive and button-independent speed at the moment of contact contact.
Znane rešitve se poslužujejo različnih tehnik oz. fizikalnih principov delovanja mehanizma stikala. Mehanizem stikala po patentih FR2717617,Known solutions use different techniques or techniques. the physical operating principles of the switch mechanism. Switch mechanism according to patents FR2717617,
W02005069335 in EP2061059 podajata rešitev s pomočjo zadržanja premičnih kontaktov na majhni razdalji od fiksnih kontaktov, pri tem se med vklapljanjem stiskajo kontaktne vzmeti, ta energija se sprosti v zadnji fazi vklopa, ko se odmakne upora premičnih kontaktov in ti z veliko hitrostjo udarijo ob fiksne kontakte, kar ima za posledico odbijanje kontaktov, celotni stisk kontaktov pa se izvrši naknadno počasi z nadaljnjim gibanjem polovnega mostička, kamor so vpeti premični kontakti. V primeru, da prenehamo z vklapljanjem v trenutku dotika kontaktov, pa se celotni stisk ne izvrši.W02005069335 and EP2061059 provide a solution by holding the moving contacts a short distance from the fixed contacts, squeezing the contact springs during switching on, this energy being released in the last phase of switching on when the contacts of the moving contacts move away and hit the fixed contacts at high speed. , which results in bouncing contacts, and the overall contact squeeze is subsequently performed slowly with the continued movement of the used bridge where the moving contacts are engaged. However, if we stop switching on when the contacts are touched, the whole squeeze is not executed.
Mehanizem stikala po patentu WO2013003057 podaja rešitev s pomočjo zadržanja premičnih kontaktov na majhni razdalji od fiksnih kontaktov, pri tem se med vklapljanjem razteza vzmet, ki je pritrjena na gumb in premični kontakt, tako shranjena energija se sprosti z odmaknitvijo naseda, ki se odmakne v zadnji fazi vklopa, stisk kontaktov pa se izvrši v trenutku in kontakti udarijo z najvišjo kontaktno silo. Slabost je velika sprostitev energije v trenutku trka, ki jo ne moremo blažiti, kar ima lahko za posledico odbijanje kontaktov.The switch mechanism according to the patent WO2013003057 provides a solution by holding the moving contacts a short distance from the fixed contacts, during which the spring attached to the button and the moving contact extends during switching on, thus the stored energy is released by moving the recess which moves into the rear the switching stage is executed in an instant and the contacts are hit with the highest contact force. Weakness is a great release of energy at the moment of a collision that cannot be mitigated, which can result in contact rejection.
Mehanizem po izumu rešuje zahteve po od hitrosti ročnega vklapljanja neodvisno vklapljanje kontaktov z blaženim trkom kontaktnega materiala ob zagotavljanju takojšnega izklopa v primeru prisotnosti napake v električnem tokokrogu ob dotiku kontaktov (prosta sprožitev).The mechanism according to the invention solves the requirements for the speed of manual switch-on by independently switching on the contacts with a soaked contact material collision, ensuring an immediate switch-off in the event of a fault in the electrical circuit upon contact contact (free actuation).
Izum je opisan na osnovi izvedbenega primera in slik, ki prikazujejo: slika 1 mehanizem v vklopljenem stanju po izumu v aksonometrični projekciji z ene strani; slika 2 mehanizem v vklopljenem stanju po izumu v aksonometrični projekciji z druge strani; slika 3 mehanizem v izklopljenem stanju s strani v prerezu; slika 4 mehanizem tik pred vklopom s strani v prerezu; slika 5 mehanizem v vklopljenem stanju s strani v prerezu;The invention is described on the basis of an embodiment and figures showing: FIG. 1 is the on-state mechanism of the invention in axonometric projection on one side; Fig. 2 is an on-state mechanism of the invention in axonometric projection on the other hand; Figure 3 shows the mechanism in the off state from the cross-section; Fig. 4 mechanism just before switching on from the side in cross section; 5 is a cross-sectional view of the mechanism in the engaged state;
slika 6 mehanizem v izklopljenem stanju s strani;Fig. 6 the mechanism in the off state from the side;
slika 7 mehanizem tik pred vklopom s strani;Fig. 7 mechanism just before switching on from the side;
slika 8 mehanizem v vklopljenem stanju s strani.Fig. 8 mechanism in on state from the side.
• ·• ·
Mehanizem po izumu tvori vzvod 2, ki je sredinsko uležajen v ohišju mehanizma in ima valjast nastavek, na katerega je vpeta natezna vzmet 5, na drugem valjastem nastavku pa je vpeto ležajno kolo 3. Spodnji konec vzmeti 5 je pritrjen na os 19, ki prebada v ohišje vrtljivo vpeto ročico 6, ki je povezana z ročico 11, le-ta pa z ročico 12. Ročica 12 je podprta z ročico 10 katera je vpeta v fiksno ročico 17, ki je pritjena na ohišje mehanizma. Vse ročice so med seboj vrtljivo spojene. Polovni mostiček 7 je uležajen v ohišju mehanizma in služi kot nosilec kontaktov 8, ki jih je lahko poljubno število io največkrat dva ali štiri. Kontakt 8 je premično vpet v polovni mostiček 7 in podprt s kontaktno vzmetjo 14. Vzmet 14 služi kot blažilec ob trku kontaktovThe mechanism according to the invention is formed by a lever 2, which is centrally mounted in the housing of the mechanism and has a cylindrical attachment, to which a tensile spring 5 is mounted, and a second wheel 3 is attached to the second cylindrical extension. The lower end of the spring 5 is fixed to the piercing axis 19. a rotatable lever 6, which is connected to the lever 11 and a lever 12, is engaged in the housing. The lever 12 is supported by a lever 10 which is engaged in a fixed lever 17 which is attached to the housing of the mechanism. All levers are pivotally connected. The used jumper 7 is housed in the housing of the mechanism and serves as a carrier for contacts 8, which can be any number io up to two or four at most. Contact 8 is pivotally mounted on the half-bridge 7 and supported by the contact spring 14. The spring 14 serves as a shock absorber upon contact collision.
8, 9 in zagotavlja potrebni stisk kontaktov 8, 9 v vklopljenem stanju.8, 9 and provides the necessary pinching of contacts 8, 9 in the on state.
Vzmet 5 služi kot hranilnik energije in se razteguje od začetka vklopa pa do trenutka pobega vzvoda 2, to je, ko se vklop kontaktov vrši neodvisno od is potisne sile 1. Ležajno kolesce 3 služi preprečevanju vklopa kontaktov pred želeno točko in pritiska s silo 16 ob polovni mostiček 7, kar povzroči kotaljenje, hkrati pa služi tudi kot del zapornega mehanizma pri končanem vklopu.The spring 5 serves as an energy reservoir and extends from the start of the actuation to the moment of escape of the lever 2, that is, when the actuation of the contacts is made independently of the thrust force 1. The bearing wheel 3 serves to prevent the actuation of the contacts from the desired point and a force of 16 at used bridge 7, which causes rolling, but also serves as part of the shut-off mechanism when complete start-up.
V izklopljenem stanju sila povratne vzmeti 13 deluje na polovni mostičekIn the off state, the return spring force 13 acts on the half-bridge
7, ta pa je povezan z ročico 12, 11 in 6 to povzroči raztegnitev vzmeti 5, ki tako s silo 4 drži vzvod 2 v izklopljenem stanju. Ležajno kolesce 3 je odmaknjeno od polovnega mostička 7. Kontaktna vzmet 14 je delno • · stisnjena in potiska kontakt 8 s silo 15 ob steno polovnega mostička 7, kontakta 8 in 9 sta razklopljena.7, which is connected to the levers 12, 11 and 6, this causes the spring 5 to be stretched which, by force 4, holds the lever 2 in the off state. The bearing wheel 3 is offset from the half-bridge 7. The contact spring 14 is partially • compressed and pushes the contact 8 by force 15 against the wall of the used bridge 7, the contacts 8 and 9 are open.
Vklop poteka v dveh fazah; v prvi fazi shranjujemo energijo v vzmeti 5 in približamo kontakt 8 kontaktu 9, v drugi fazi pa sprostimo shranjeno energijo v vzmeti 5 in jo porabimo za sklenitev kontaktov 8, 9 in za stiskanje kontaktne vzmeti 14, katera zagotavlja zadosten kontaktni pritisk.Activation takes place in two stages; in the first phase we store the energy in the spring 5 and bring the contact 8 closer to the contact 9, and in the second phase release the stored energy in the spring 5 and use it to close the contacts 8, 9 and to compress the contact spring 14, which provides sufficient contact pressure.
Prenos vklopne sile 1 se vrši preko vzvoda 2, ki ga pomikamo iz izklopljenega proti vklopljenem stanju. Na vzvod 2 je vpeta vzmet 5, ta se prične raztezati, ko se ležajno kolesce 3, ki je vpeto na vzvod 2, nasloni na io polovni mostiček 7. Ležajno kolesce 3 preprečuje nekontrolirano vrtenje polovnega mostička 7, kar povzroči raztezanje vzmeti 5 in počasno približevanje kontakta 8 kontaktu 9. Tako se vklopna sila 1 porabi za raztezanje vzmeti 5 do točke, ko ležajno kolesce 3 omogoči polovnemu mostičku 7, da se zavrti in z od vzvoda 2 neodvisno hitrostjo potisne kontaktThe transfer of the actuating force 1 is carried out via the lever 2, which is moved from the off to the on state. A spring 5 is attached to the lever 2, which begins to extend when the roller 3, which is mounted on the lever 2, rests on the io pole 7. The roller 3 prevents uncontrolled rotation of the pole 7, which causes the spring 5 to stretch slowly and slowly. approaching contact 8 to contact 9. Thus, the actuating force 1 is used to stretch the spring 5 to the point where the roller 3 allows the half-bridge 7 to rotate and to push the contact independent of the speed 2
8 proti kontaktu 9 in po dotiku kontaktov 8 in 9 stisne kontaktno vzmet 14.8 against pin 9 and, after contacting contacts 8 and 9, compresses the contact spring 14.
Vzmet 5 je pritrjena na enem koncu na vzvod 2 in na drugem na os 19, ki prebada ročico 6, ta je na sredini vrtljivo vpeta v ohišje in na drugem koncu vrtljivo spojena z ročico 11, ta pa je vrtljivo spojena z ročico 12, ki je vrtljivo vpeta v polovni mostiček 7. Tako sila 4 preko ročic 6, 11, 12 tvori siloThe spring 5 is fixed at one end to the lever 2 and at the other to the axis 19, which pierces the lever 6, which is pivotally pivoted to the housing in the middle and pivotally coupled to the other end by the lever 11, which is pivotally coupled to the lever 12, which is pivotally engaged in the half-bridge 7. Thus force 4 generates force through the arms 6, 11, 12
18, ki ustvarja vrtilni moment, ki deluje na polovni mostiček 7. Ročica 12 je podprta z ročico 10, katera je vpeta v fiksno ročico 17. Vse ročice so med seboj vrtljivo spojene. Ročice 6, 11, 12 so postavljene tako, da v začetni fazi vklopa tvorijo majhno silo 18 v zaključni fazi pa kljub vse manjši sili 4 v vzmeti 5 tvorijo veliko silo 18, ker takrat potrebujemo velik vrtilni moment, ki stiska kontaktno vzmet 14 pri tem pa sila 15 narašča. Vpetje vzmeti 5, ki je izvedeno med vzvodom 2 in ročico 6, služi kot hranilnik energije s tem, da zavrtitev polovnega mostička 7 med napenjanjanjem vzmeti 5 preprečuje kotalenje ležajnega kolesca 3 po polovnem mostičku 7.18, which generates a torque acting on the half-bridge 7. The lever 12 is supported by a lever 10, which is clamped to a fixed lever 17. All the levers are pivotally connected. The arms 6, 11, 12 are positioned to form a small force 18 in the initial start-up phase, but in the final phase, despite a smaller force 4, they form a large force 18 in the spring 5, because then a large torque is required which compresses the contact spring 14 so force 15 is increasing. The suspension of the spring 5, which is made between the lever 2 and the lever 6, serves as an energy storage device, in that the rotation of the used bridge 7 during the tensioning of the spring 5 prevents the roller 3 from rolling over the used bridge 7.
V primeru rahle zavaritve kontaktov 8, 9 je možno pretrganje zvara z vzvodom 2 preko ležajnega kolesca 3, ki odrine polovni mostiček 7 in s tem odmakne kontakt 8 od kontakta 9.In the case of slight welding of contacts 8, 9, it is possible to break the weld with lever 2 through the roller 3, which pulls off the half-bridge 7, thereby moving the contact 8 from the contact 9.
Claims (6)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI201400195A SI24729A (en) | 2014-05-23 | 2014-05-23 | A mechanism for speed independent switching on contacts |
| EP14001875.5A EP2947674A1 (en) | 2014-05-23 | 2014-05-29 | Mechanism for speed-independent closing of contacts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI201400195A SI24729A (en) | 2014-05-23 | 2014-05-23 | A mechanism for speed independent switching on contacts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SI24729A true SI24729A (en) | 2015-11-30 |
Family
ID=50943014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SI201400195A SI24729A (en) | 2014-05-23 | 2014-05-23 | A mechanism for speed independent switching on contacts |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2947674A1 (en) |
| SI (1) | SI24729A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108735532B (en) * | 2018-06-22 | 2024-04-16 | 上海良信电器股份有限公司 | Anti-bounce buffer mechanism of low-voltage switch |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH286651A (en) * | 1950-12-13 | 1952-10-31 | Reggiardi Filippo | Command and trip device, with spring-loaded fulcrum, for electrical switches and switches. |
| CH604363A5 (en) * | 1976-09-10 | 1978-09-15 | Landis & Gyr Ag | Electrical cut=out relay |
| DE3511278A1 (en) * | 1985-03-28 | 1986-10-09 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Neutral-conductor interrupter device |
| FR2717617B1 (en) | 1994-03-15 | 1996-05-31 | Hager Electro | Improvement to differential switches. |
| AT505093B1 (en) | 2004-01-19 | 2013-02-15 | Moeller Gebaeudeautomation Kg | ELECTROMECHANICAL SWITCH |
| FR2923943B1 (en) | 2007-11-16 | 2010-01-01 | Schneider Electric Ind Sas | DEVICE FOR CONTROLLING AN ELECTRIC CUTTING APPARATUS, AND ELECTRIC CUTTING APPARATUS COMPRISING SAME |
| US8604374B2 (en) | 2011-06-27 | 2013-12-10 | Schneider Electric USA, Inc. | Moveable contact closing energy transfer system for miniature circuit breakers |
-
2014
- 2014-05-23 SI SI201400195A patent/SI24729A/en not_active IP Right Cessation
- 2014-05-29 EP EP14001875.5A patent/EP2947674A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP2947674A1 (en) | 2015-11-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OO00 | Grant of patent |
Effective date: 20151221 |
|
| KO00 | Lapse of patent |
Effective date: 20220126 |