EP4258316A3 - Temperature-dependent switch - Google Patents

Temperature-dependent switch Download PDF

Info

Publication number
EP4258316A3
EP4258316A3 EP23194593.2A EP23194593A EP4258316A3 EP 4258316 A3 EP4258316 A3 EP 4258316A3 EP 23194593 A EP23194593 A EP 23194593A EP 4258316 A3 EP4258316 A3 EP 4258316A3
Authority
EP
European Patent Office
Prior art keywords
locking element
contact member
temperature
switch
switching
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.)
Pending
Application number
EP23194593.2A
Other languages
German (de)
French (fr)
Other versions
EP4258316A2 (en
Inventor
Marcel P. Hofsaess
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP4258316A2 publication Critical patent/EP4258316A2/en
Publication of EP4258316A3 publication Critical patent/EP4258316A3/en
Pending legal-status Critical Current

Links

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
    • H01H37/5409—Bistable switches; Resetting means
    • 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
    • H01H37/5427—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting encapsulated in sealed miniaturised housing
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/002—Thermally-actuated switches combined with protective means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • 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
    • H01H37/323—Thermally-sensitive members making use of shape memory materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/60—Means for producing snap action
    • 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
    • H01H2037/549—Details of movement transmission between bimetallic snap element and contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/64—Contacts
    • H01H37/70—Resetting means
    • H01H2037/705—Resetting means wherein the switch cannot be closed when the temperature is above a certain value

Abstract

Temperaturabhängiger Schalter (10, der einen ersten und einen zweiten stationären Kontakt (48, 50) sowie ein temperaturabhängiges Schaltwerk (14) mit einem beweglichen Kontaktglied (42) aufweist, wobei das Schaltwerk (14) in seiner ersten Schaltstellung das Kontaktglied (42) gegen den ersten Kontakt (48) drückt und dabei über das Kontaktglied (42) eine elektrisch leitende Verbindung zwischen den beiden Kontakten (48, 50) herstellt und in seiner zweiten Schaltstellung das Kontaktglied (42) zu dem ersten Kontakt (48) beabstandet hält und damit die elektrisch leitende Verbindung zwischen den beiden Kontakten (48, 50) unterbricht und den Schalter (10) öffnet. Der Schalter (10) weist ferner eine Schließsperre (52) auf, die ein erneutes Schließen des geöffneten Schalters (10) verhindert, in dem sie das Schaltwerk (14) in dessen zweiter Schaltstellung hält, sobald sie aktiviert ist. Die Schließsperre (52) weist ein Sperrelement (54) auf, das zumindest teilweise aus einer Formgedächtnislegierung ist und eine Öffnung (56) hat, durch die das bewegliche Kontaktglied (42) hindurchragt. Das Sperrelement (54) ist dazu eingerichtet, seine Form bei Überschreiten einer Sperrelement-Schalttemperatur von einer ersten Form, in der das Sperrelement (54) die Schließsperre (52) nicht aktiviert, in eine zweite Form zu verändern, in der das Sperrelement (54) die Schließsperre (52) aktiviert, indem es eine Kraft auf ein Teil des Schaltwerks (14) ausübt, die das Schaltwerk (14) in seiner zweiten Schaltstellung hält.Temperature-dependent switch (10, which has a first and a second stationary contact (48, 50) and a temperature-dependent switching mechanism (14) with a movable contact member (42), the switching mechanism (14) counteracting the contact member (42) in its first switching position presses the first contact (48) and thereby establishes an electrically conductive connection between the two contacts (48, 50) via the contact member (42) and in its second switching position keeps the contact member (42) at a distance from the first contact (48) and thus interrupts the electrically conductive connection between the two contacts (48, 50) and opens the switch (10). The switch (10) also has a closing lock (52) which prevents the opened switch (10) from closing again, in which it holds the switching mechanism (14) in its second switching position as soon as it is activated. The closing lock (52) has a locking element (54) which is at least partially made of a shape memory alloy and has an opening (56) through which the movable contact member (42) protrudes through. The locking element (54) is designed to change its shape when a locking element switching temperature is exceeded from a first shape in which the locking element (54) does not activate the closing lock (52) to a second shape in which the locking element (54 ) the closing lock (52) is activated by exerting a force on a part of the rear derailleur (14), which holds the rear derailleur (14) in its second switching position.

EP23194593.2A 2019-10-21 2020-10-08 Temperature-dependent switch Pending EP4258316A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019128367.1A DE102019128367B4 (en) 2019-10-21 2019-10-21 TEMPERATURE DEPENDENT SWITCH
EP20200846.2A EP3813090A1 (en) 2019-10-21 2020-10-08 Temperature-dependent switch

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP20200846.2A Division EP3813090A1 (en) 2019-10-21 2020-10-08 Temperature-dependent switch

Publications (2)

Publication Number Publication Date
EP4258316A2 EP4258316A2 (en) 2023-10-11
EP4258316A3 true EP4258316A3 (en) 2024-01-10

Family

ID=72811728

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20200846.2A Pending EP3813090A1 (en) 2019-10-21 2020-10-08 Temperature-dependent switch
EP23194593.2A Pending EP4258316A3 (en) 2019-10-21 2020-10-08 Temperature-dependent switch

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP20200846.2A Pending EP3813090A1 (en) 2019-10-21 2020-10-08 Temperature-dependent switch

Country Status (4)

Country Link
US (2) US11749479B2 (en)
EP (2) EP3813090A1 (en)
CN (1) CN112768292A (en)
DE (1) DE102019128367B4 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114036802A (en) * 2021-11-19 2022-02-11 中车长春轨道客车股份有限公司 Passive self-moving structure design method and low-temperature control switch
CN116560071B (en) * 2023-07-11 2023-10-20 北京瑞控信科技股份有限公司 Quick reflection mirror based on memory alloy locking structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041823A1 (en) * 1980-06-06 1981-12-16 THE GENERAL ELECTRIC COMPANY, p.l.c. Thermally responsive switches
JPH09213182A (en) * 1996-02-05 1997-08-15 Texas Instr Japan Ltd Motor protector
EP0828273A2 (en) * 1996-09-10 1998-03-11 Marcel Peter Hofsäss Switch with a safety element
DE102018100890B3 (en) * 2018-01-16 2019-07-18 Marcel P. HOFSAESS Temperature-dependent switch

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US2361193A (en) * 1939-07-12 1944-10-24 Radio Patents Corp Control device, particularly thermostatic device
DE7531355U (en) * 1975-10-03 1978-04-27 Inter Control Hermann Koehler Elektrik Gmbh & Co Kg, 8500 Nuernberg Resettable temperature limiter
AT383696B (en) * 1982-03-03 1987-08-10 Electrovac THERMAL SWITCH
AT386489B (en) * 1984-06-15 1988-08-25 Electrovac THERMAL SWITCH WITH A TEMPERATURE SENSOR MADE FROM A THERMAL BIMETALLIC SNAP DISC
DE8625999U1 (en) * 1986-09-29 1986-11-13 Temtech-Temperatur-Technik Hans-Peter Bojer, 7530 Pforzheim, De
JPH02244528A (en) * 1989-03-17 1990-09-28 Hitachi Ltd Overload protection device
JP2804856B2 (en) * 1991-08-21 1998-09-30 株式会社日立製作所 Overload protection device
TW391078B (en) * 1992-10-16 2000-05-21 Hitachi Ltd Overload protective apparatus utilizing a bimetal
DE19545997C2 (en) * 1995-12-09 1997-12-18 Marcel Hofsaes Switch with a temperature-dependent switching mechanism
DE19708436C2 (en) * 1997-03-01 1999-08-19 Hofsaes Temperature-dependent switch with contact bridge and process for its manufacture
DE19727197C2 (en) * 1997-06-26 1999-10-21 Marcel Hofsaess Temperature-dependent switch with contact bridge
US6191680B1 (en) * 1998-02-23 2001-02-20 HOFSäSS MARCEL Switch having a safety element
JP4312350B2 (en) * 2000-06-06 2009-08-12 ウチヤ・サーモスタット株式会社 Thermal protector
US6580351B2 (en) * 2000-10-13 2003-06-17 George D. Davis Laser adjusted set-point of bimetallic thermal disc
US6741159B1 (en) * 2002-05-16 2004-05-25 Robert A. Kuczynski Fail-safe assembly for coacting contacts in a current-carrying system, apparatus or component
US7071809B2 (en) * 2002-11-25 2006-07-04 Honeywell International Inc. Thermal fuse containing bimetallic sensing element
ITTO20030262A1 (en) 2003-04-04 2004-10-05 Fiat Ricerche LOCKING DEVICE WITH SHAPE MEMORY ACTUATORS.
US7209336B2 (en) * 2004-10-02 2007-04-24 Tsung-Mou Yu Double-protection circuit protector
US7345568B2 (en) * 2005-05-03 2008-03-18 Tsung-Mou Yu Dual protection device for circuits
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DE102009061050B4 (en) * 2009-06-05 2019-09-05 Marcel P. HOFSAESS Bimetal part and thus equipped temperature-dependent switch
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DE202013012037U1 (en) 2013-02-13 2015-02-10 Thermik Gerätebau GmbH Temperature-dependent switch
DE102013108508A1 (en) * 2013-08-07 2015-02-12 Thermik Gerätebau GmbH Temperature-dependent switch
DE102013109291A1 (en) * 2013-08-27 2015-03-05 Thermik Gerätebau GmbH Temperature-dependent switch with snap-in disc clamped on the edge
DE102013017232A1 (en) * 2013-10-17 2015-04-23 Thermik Gerätebau GmbH Temperature-dependent derailleur
DE102014108518A1 (en) * 2014-06-17 2015-12-17 Thermik Gerätebau GmbH Temperature-dependent switch with spacer ring
CN207338282U (en) 2017-07-14 2018-05-08 东莞市晶品电子科技有限公司 A kind of SMA protectors for the protection of lithium rechargeable battery overtemperature and overcurrent
DE102019112074B4 (en) * 2019-05-09 2020-12-17 Marcel P. HOFSAESS Temperature dependent switch
DE102019125452B4 (en) * 2019-09-20 2021-04-22 Marcel P. HOFSAESS Temperature dependent switch
DE102019125451B4 (en) * 2019-09-20 2021-04-08 Marcel P. HOFSAESS Temperature dependent switch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041823A1 (en) * 1980-06-06 1981-12-16 THE GENERAL ELECTRIC COMPANY, p.l.c. Thermally responsive switches
JPH09213182A (en) * 1996-02-05 1997-08-15 Texas Instr Japan Ltd Motor protector
EP0828273A2 (en) * 1996-09-10 1998-03-11 Marcel Peter Hofsäss Switch with a safety element
DE102018100890B3 (en) * 2018-01-16 2019-07-18 Marcel P. HOFSAESS Temperature-dependent switch

Also Published As

Publication number Publication date
US11749479B2 (en) 2023-09-05
EP4258316A2 (en) 2023-10-11
EP3813090A1 (en) 2021-04-28
DE102019128367A1 (en) 2021-04-22
CN112768292A (en) 2021-05-07
US20210118636A1 (en) 2021-04-22
DE102019128367B4 (en) 2021-06-10
US11881369B2 (en) 2024-01-23
US20230162934A1 (en) 2023-05-25

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