EP1033732A2 - Interrupteur a soudage de securité - Google Patents

Interrupteur a soudage de securité Download PDF

Info

Publication number: EP1033732A2
Authority: EP; European Patent Office
Prior art keywords: switch; contact part; connection electrode; bimetallic; movable contact
Prior art date: 1999-03-02
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.): Granted

Application number

EP99124508A

Other languages

German (de)

English (en)

Other versions

EP1033732A3 (fr

EP1033732B1 (fr

Inventor

Marcel Hofsäss

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Individual

Original Assignee

Individual

Priority date (The priority date 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 date listed.)

1999-03-02

Filing date

1999-12-09

Publication date

2000-09-06

1999-12-09 Application filed by Individual filed Critical Individual

2000-09-06 Publication of EP1033732A2 publication Critical patent/EP1033732A2/fr

2002-06-19 Publication of EP1033732A3 publication Critical patent/EP1033732A3/fr

2004-06-09 Application granted granted Critical

2004-06-09 Publication of EP1033732B1 publication Critical patent/EP1033732B1/fr

2019-12-09 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
- 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
- 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
- H01H2001/506—Fail safe contacts, i.e. the contacts being kept in a safe position, usually in an open circuit position, at end of life time of switch
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
- H01H2037/5463—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting the bimetallic snap element forming part of switched circuit
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/001—Means for preventing or breaking contact-welding

Definitions

the present invention relates to a switch with a temperature-dependent switching mechanism, which is a fixed contact part, a cooperating movable contact part and a Bimetal part having a predetermined functional life includes the movable depending on its temperature Contact part stands out from the fixed contact part, wherein the two contact parts in a switching position with each other Attachment to a current to be conducted through the switch lead, and lifted from each other in a second switching position are so that the switch is open.
Such switches which are also temperature monitors or temperature limiters are generally from the state of the Technology known.
the known switches are used to one protecting electrical consumers from overtemperature and / or to protect high operating current. To this end they will be in line with the electrical consumer at one Switched voltage source to supply the consumer and mechanically arranged so that they are in close thermal Contact the consumer.
the active switching elements in such temperature-dependent Switchgear and switches are bimetallic or tri-metal elements, that of two or three layers different Metals are made up of different coefficients of thermal expansion have, as is generally known.
At a temperature change above or below the response temperature snap such switching elements e.g. between a convex and a concave shape back and forth.
the response temperature as well the extent of the deformation when switching becomes one through the choice of materials and material thicknesses to others but also determined by mechanical knockouts etc.
Another measure to prevent welding between the two contact parts is this with such to design matched, identical geometry, that arcing is prevented.
the service life of a bimetal or trimetal element is common due to symptoms of fatigue Switching determined. Having such a temperature dependent Rear derailleur e.g. has switched ten thousand times, that snaps Bimetal element no longer suddenly when the response temperature is reached um, rather the movable contact part moves initially just a bit away from the fixed contact part and only when the temperature rises significantly will the open one Position reached, which in the course of a creeping movement can be taken. When the switching capacity decreases The bimetal element can cause an arc form between the contact parts, but initially still goes out again until the switching capacity continues to decrease for the already mentioned welding of the contact parts leads.
this object is achieved according to the invention solved in that the two contact parts such are coordinated and arranged that when reached the functional life of the bimetal part the rear derailleur is welded in the second switching position, preferably the bimetallic part through a when reaching the Operating life of the arc forming the bimetal part in the second switching position on a preferably live one Part of the switch is welded.
the object underlying the invention is based on this Way completely solved.
the inventor of the present application has recognized that that it by the choice of the arrangement and the geometry of the two contact parts can be achieved that a developing Do not arc the switch - as in the state of the Technology - welded in the closed, but in the open state. So this is a departure from known measures to avoid a Arc, according to the invention rather ensures that A specifically directed arc switches the switch open Condition welded.
This measure has the advantage that also by current-carrying bimetallic part ensures that the Welding in the border area between even more adequate Opening force and extreme creep takes place in the open state.
the bimetal part does not have to be against the force of one Closing spring work so that the opening force to the actual Lifting the movable contact part is still sufficient, even if the bimetal part is already at the end of its service life has arrived.
the switch with one with the fixed contact part connected first connection electrode and a second connection electrode connected to the movable contact part is provided, the switching mechanism being a spring element has at its first end with the second connection electrode and at its second end with the bimetal part is connected, the movable contact part at its free end wearing.
the advantage here is that the current through a series connection made of temperature-neutral spring element and temperature-dependent Bimetallic part flows, the spring element for a safe Closing pressure of the closed switch ensures while the bimetal part yourself without heavy mechanical loads can deform depending on the temperature.
the spring element for a safe Closing pressure of the closed switch ensures while the bimetal part yourself without heavy mechanical loads can deform depending on the temperature.
switching takes place moreover a transverse movement between the two Contact parts, which ensures that the first between arc forming the two contact parts on the Bimetallic part is deflected and this with a current-carrying part of the switch welded.
the spring element and the bimetal part are arranged mechanically parallel to each other in such a way that they extend to the same side of their connection with each other, further preferably the bimetal part in the second switching position is applied to the spring element and with this is welded when the functional life of the bimetal part is reached so that when the switch is opened forms an arc.
the inventor of the present application has recognized that in particular in this V-shaped arrangement of spring element and Bimetal part a when the switching force of the bimetal part decreases forming arc reliably from the movable Contact part deflected to the current-carrying bimetal part and this with the likewise current-carrying spring element welded.
the fixed and the movable Contact part preferably different in cross section Have geometries.
the advantage here is that the different geometries the contact parts of the arcs from the moving Contact part is deflected to the bimetallic part when the Opening speed of the rear derailleur when the Functional life of the bimetal part decreases.
This measure stands in contrast to those from the prior art measures considered indispensable according to which the Contact parts have a coordinated similar geometry to avoid arcing.
one of the two contact parts approximately circular in cross-section and the other is approximately rectangular, with particular preference that fixed contact part circular in cross section and the movable Contact part is square in cross section.
the arc is particularly safe from the movable, round one Contact part deflected to the current-carrying bimetal part, see above that he this to the current-carrying connection electrode or strike through current-carrying spring element and with this / this can weld.
10 is a switch in a longitudinal sectional side view shown.
the switch 10 includes a temperature dependent Switch mechanism 11, which is in a plastic housing 12 is housed and held by a plastic carrier 14 becomes.
first, lower connection electrode 15 and a second, upper connection electrode 16 are arranged, between which the switching mechanism 11 is electrically and is provided mechanically.
the rear derailleur 11 includes a T-shaped spring element 17 which with its first end 18, which is in the manner of a crossbar is formed between the plastic carrier 14 and the second connecting electrode 16 is clamped.
On his second The end 19 has the spring element 17 a connection 21 to one first end 22 of a bimetallic part 23 on its free end 24 carries a movable contact part 25.
This movable contact part 25 is a fixed contact part 26 assigned that attached to the first connection electrode 15 is.
the spring element 17 and the bimetallic part 23 extend mechanically parallel to each other on the same side of their connection 21, with a bulge on the spring element 17 28 is provided, which points to the bimetallic part 23.
the bimetal part 23 If now either as a result of the current flow or as a result the bimetal part 23 is too high heated above its response temperature, it snaps from the concave position shown in Fig. 1 to a convex Position in which it is the movable contact part 25 of the fixed contact part 26 has raised. This snapping takes place initially very quickly, so that there is between the two contact parts 25, 26 cannot form an arc.
FIG. 4 shows a second exemplary embodiment in a representation like FIG. 1 of the new switch 10 shown, in which the Bimetal part 23 with its first end 22 directly with the second connecting electrode 16 is in use for this purpose has a projection 34.
the difference to the rear derailleur from Figures 1 to 3 consists only in that at 4 no spring element 17 is provided.
the rear derailleur 11 from FIG. 1 is a plan view shown, for the sake of clarity on the representation the housing parts have been dispensed with.
Fig. 6 it can be seen that below the T-shaped spring element 17 the bimetallic part 23 is arranged, which is the shape has a bimetallic snap disc. That too Snap the bimetal snap-in protrusion 28 the spring element 17 can be seen.
first connection electrode 15 which fixed contact part 26 carries, which is circular in cross section is.
the fixed contact part 26 carries the Bimetallic part 23, the movable contact part 25, which in cross section is square and has a smaller area has as the round contact part 26th
FIG. 6 also shows an electrical circuit 37 Switch mechanism 11, voltage source 38, to be protected electrical Consumers in the form of an engine 39 and one by the engine 39 flowing current 40.
the circuit 37 is with the two Connection electrodes 15, 16 connected so that in the closed State of the switching mechanism 11 of the current 40 via the two contact parts 25, 26 is passed.

Landscapes

Physics & Mathematics (AREA)
Thermal Sciences (AREA)
Thermally Actuated Switches (AREA)
Push-Button Switches (AREA)
Burglar Alarm Systems (AREA)
Coupling Device And Connection With Printed Circuit (AREA)
Switch Cases, Indication, And Locking (AREA)

EP99124508A 1999-03-02 1999-12-09 Interrupteur a soudage de securité Expired - Lifetime EP1033732B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19909059A DE19909059C2 (de)	1999-03-02	1999-03-02	Schalter mit Verschweißsicherung
DE19909059		1999-03-02

Publications (3)

Publication Number	Publication Date
EP1033732A2 true EP1033732A2 (fr)	2000-09-06
EP1033732A3 EP1033732A3 (fr)	2002-06-19
EP1033732B1 EP1033732B1 (fr)	2004-06-09

Family

ID=7899409

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP99124508A Expired - Lifetime EP1033732B1 (fr)	1999-03-02	1999-12-09	Interrupteur a soudage de securité

Country Status (6)

Country	Link
US (1)	US6448883B1 (fr)
EP (1)	EP1033732B1 (fr)
AT (1)	ATE268937T1 (fr)
DE (2)	DE19909059C2 (fr)
ES (1)	ES2221294T3 (fr)
PT (1)	PT1033732E (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP3828476B2 (ja)	2002-10-15	2006-10-04	株式会社センサータ・テクノロジーズジャパン	無通電式密閉型モータプロテクタ
US8754773B1 (en) *	2004-02-21	2014-06-17	Lee Von Gunten	Device for simulating human activity in an unoccupied dwelling
DE102009030353B3 (de) *	2009-06-22	2010-12-02	Hofsaess, Marcel P.	Kappe für einen temperaturabhängigen Schalter sowie Verfahren zur Fertigung eines temperaturabhängigen Schalters
DE102009039948A1 (de) *	2009-08-27	2011-03-03	Hofsaess, Marcel P.	Temperaturabhängiger Schalter
CN103560048A (zh) *	2013-11-20	2014-02-05	威海双丰韩柏温度智能控制有限公司	双触点温控器
WO2019230751A1 (fr) *	2018-05-30	2019-12-05	ボーンズ株式会社	Disjoncteur, circuit de sécurité et bloc-batterie secondaire
KR102469819B1 (ko) *	2018-11-12	2022-11-21	주식회사 엘지에너지솔루션	과충전 방지가 가능한 구조를 갖는 배터리 팩 및 이를 포함하는 자동차
JP7664803B2 (ja)	2021-09-24	2025-04-18	Ｌｉｔｔｅｌｆｕｓｅジャパン合同会社	保護デバイス
DE102023102301B3 (de)	2023-01-31	2024-03-28	Marcel P. HOFSAESS	Temperaturabhängiger Schalter und Verfahren zu dessen Herstellung

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2139921A (en) *	1938-06-07	1938-12-13	Chace Co W M	Snap acting thermostat
US3443259A (en) *	1967-05-16	1969-05-06	Portage Electric Prod Inc	Creepless snap-acting thermostatic switch
US3959762A (en) *	1974-12-09	1976-05-25	Texas Instruments Incorporated	Thermally responsive electrical switch
EP0000807B1 (fr) *	1977-07-13	1982-01-06	Ranco Incorporated	Interrupteur à action brusque en combinaison avec un commutateur auxiliaire
JPS54150678A (en) *	1978-05-19	1979-11-27	Tetsuo Takano	Square electric contact
US4389630A (en) *	1980-03-15	1983-06-21	Susumu Ubukatu	Snap action thermally responsive switch
US4363016A (en) *	1981-06-03	1982-12-07	Amf Incorporated	Circuit breaker
US4399423A (en) *	1982-03-29	1983-08-16	Texas Instruments Incorporated	Miniature electric circuit protector
US4636766A (en) *	1983-09-19	1987-01-13	Gte Products Corporation	Miniaturized circuit breaker
US4620175A (en) *	1985-10-11	1986-10-28	North American Philips Corporation	Simple thermostat for dip mounting
JPH01120719A (ja) *	1987-11-04	1989-05-12	Nec Corp	導電液体接点スイッチ
JPH05282977A (ja) *	1992-03-30	1993-10-29	Texas Instr Japan Ltd	過電流保護装置
JP2827079B2 (ja) *	1994-02-01	1998-11-18	株式会社生方製作所	サーマルプロテクタ
US5781097A (en) *	1996-03-01	1998-07-14	Portage Electric Products, Inc.	Dual calibration thermostatic switch having a wide operating range
DE19636640C2 (de) *	1996-09-10	1999-02-18	Marcel Hofsaes	Schalter mit einem Sicherheitselement
DE19807288C2 (de) *	1998-02-23	2001-09-20	Marcel Hofsaes	Temperaturabhängiger Schalter
US6191680B1 (en) *	1998-02-23	2001-02-20	HOFSäSS MARCEL	Switch having a safety element
US6097274A (en) *	1998-02-23	2000-08-01	Hofsaess; Marcel	Switch having a temperature-dependent switching member and a substantially temperature-independent spring element
DE19816809C2 (de) *	1998-04-16	2001-10-18	Thermik Geraetebau Gmbh	Temperaturabhängiger Schalter
DE19816807C2 (de) *	1998-04-16	2000-06-08	Thermik Geraetebau Gmbh	Temperaturabhängiger Schalter
DE19847208C2 (de) *	1998-10-13	2002-05-16	Marcel Hofsaes	Schalter mit einem Isolierstoffträger

1999
- 1999-03-02 DE DE19909059A patent/DE19909059C2/de not_active Expired - Fee Related
- 1999-12-09 AT AT99124508T patent/ATE268937T1/de not_active IP Right Cessation
- 1999-12-09 PT PT99124508T patent/PT1033732E/pt unknown
- 1999-12-09 EP EP99124508A patent/EP1033732B1/fr not_active Expired - Lifetime
- 1999-12-09 DE DE59909688T patent/DE59909688D1/de not_active Expired - Lifetime
- 1999-12-09 ES ES99124508T patent/ES2221294T3/es not_active Expired - Lifetime
2000
- 2000-03-01 US US09/516,392 patent/US6448883B1/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
ES2221294T3 (es)	2004-12-16
DE59909688D1 (de)	2004-07-15
US6448883B1 (en)	2002-09-10
EP1033732A3 (fr)	2002-06-19
PT1033732E (pt)	2004-10-29
EP1033732B1 (fr)	2004-06-09
ATE268937T1 (de)	2004-06-15
DE19909059A1 (de)	2000-09-21
DE19909059C2 (de)	2003-10-16

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