EP0863527B1 - Temperaturabhängiger Schalter mit Kontaktbrücke - Google Patents

Temperaturabhängiger Schalter mit Kontaktbrücke Download PDF

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Publication number
EP0863527B1
EP0863527B1 EP97119933A EP97119933A EP0863527B1 EP 0863527 B1 EP0863527 B1 EP 0863527B1 EP 97119933 A EP97119933 A EP 97119933A EP 97119933 A EP97119933 A EP 97119933A EP 0863527 B1 EP0863527 B1 EP 0863527B1
Authority
EP
European Patent Office
Prior art keywords
housing part
switch
upper housing
stationary contacts
temperature
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.)
Expired - Lifetime
Application number
EP97119933A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0863527A3 (de
EP0863527A2 (de
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
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0863527A2 publication Critical patent/EP0863527A2/de
Publication of EP0863527A3 publication Critical patent/EP0863527A3/de
Application granted granted Critical
Publication of EP0863527B1 publication Critical patent/EP0863527B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0056—Apparatus or processes specially adapted for the manufacture of electric switches comprising a successive blank-stamping, insert-moulding and severing operation
    • 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
    • H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting

Definitions

  • the present invention relates to a temperature dependent Switch with a temperature-dependent switching mechanism, the one Rear derailleur-receiving, closed housing, which is a lower part and has an upper part made of insulating material, two on the Upper part on the inside of the stationary contacts provided, each with an external connection assigned to it is electrically connected, and one moved by the switching mechanism Current transmission element, the two depending on the temperature electrically connects stationary contacts.
  • the known switch has a housing with a cup-like Lower part, in which a temperature-dependent switching mechanism is inserted is.
  • the lower part is closed by an upper part, by the raised edge of the lower part on this is held.
  • the lower part can be made of metal or insulating material be made, while the upper part in any case made of insulating material is made.
  • the rear derailleur carries a current transmission element in the form of a contact bridge, each according to temperature with the two stationary contacts in the system brought and then electrically connects them together.
  • the outer heads of the two rivets serve as solder connections for strands.
  • the temperature-dependent switching mechanism is known per se Have a bimetallic washer and a spring washer that are centrally penetrated by a pin that the contact bridge wearing.
  • the spring washer is guided circumferentially in the housing, while the bimetallic disc adapts depending on the temperature the bottom of the lower part or on the edge of the spring washer supports and either the contact bridge to the allows both stationary contacts or the contact bridge stands out from the stationary contacts, so that the electrical Connection between the external connections is interrupted.
  • This temperature-dependent switch is used in a known manner used to prevent electrical devices from overheating protect.
  • the switch is electrically connected to the one to be protected Device connected in series and mechanically on the device arranged that it is in thermal connection with this.
  • The is below the response temperature of the bimetallic disc Contact bridge on the two stationary contacts so that the circuit is closed and the device to be protected is supplied.
  • the temperature rises above an allowable Value, the bimetal disc lifts the contact bridge from the stationary contacts, whereby the switch opens and the supply of the device to be protected is interrupted, so that it can cool down again.
  • a disadvantage is the complex manufacture of the known Switch, after making the cover namely the rivets are subsequently attached to this.
  • On another disadvantage is that to the outside Rivet heads still need to be soldered to what is in the strands Rule cannot be automated. However, this means that the Production of a ready-to-use assembly with strands Switch here is time consuming and therefore costly.
  • a Bimetal rear derailleur Inside the closed housing thus formed is a Bimetal rear derailleur arranged depending on its Temperature an electrically conductive connection between the stationary contact and the lower housing part and thus between the two connecting tongues.
  • This switch has the disadvantage that the assembly, in particular the arrangement of the upper part on the lower part, complicated is because the one with the second connecting tongue trained tabs must be flipped accordingly. In the event of manufacturing errors or inaccuracies, safety is the electrical connection between the connecting lug and the Lower part not guaranteed.
  • each connection electrode is a flat metal part with which the respective external connection that protrudes laterally from the upper part, is punched out in one piece, and the connection electrodes lie parallel next to each other in the top part.
  • the inventor of the present application has recognized that in a generic switch connecting electrodes in the Top part can be poured into the stationary contacts on the inside of the upper part with external connections outside connect the upper part.
  • a particular advantage is included here the manufacture of the new switch, because the connection electrodes can in a first step with stationary contacts as well the external connections are connected, whereupon the Injection of the upper part, the connection electrodes are cast, so to speak or overmolded. In other words, during the Manufacture of the upper part itself will be the external connections as well as the stationary contacts attached to it.
  • a particular advantage of the new switch and the new process So its manufacture lies in the fact that it is light is to be produced.
  • connection electrodes now the external connections geometrically can be placed anywhere with the stationary contacts, the external connections themselves now as solder, crimp or Screw connections can be formed.
  • Another advantage is that the "next to the switch" External connections are well connected, so that the Installation of the new switch on a device to be protected is simplified.
  • connection electrodes can e.g. strapped or on a belt are supplied, and they also have a good stability of the Cause top part because they have flat metal parts are. Because of this extensive training, this results in also better heat absorption and heat supply inside of the new switch towards the temperature-dependent switching mechanism.
  • connection electrodes This measure is advantageous in terms of production technology, because the geometric assignment of the connection electrodes to each other predetermined by punching out and during overmolding with the upper part retained by the holding bars.
  • sockets also after Injection molding still protrude from the top so that them at the same time for attaching the connection electrodes to the Band can serve. After pouring the connection electrodes these are from the tape and thus from each other Cut.
  • connection electrode As a stationary contact is bent downwards, but that the connection electrode itself remains, so to speak, as a flat part on which the stationary contact is welded on. This results in but clear geometric conditions, errors when punching out or bending the connection electrode cannot lead to that the position of the stationary contacts changes with each other. For the sake of completeness, it should be mentioned that the two stationary contacts must be at approximately the same level, thus the contact bridge securely on both stationary contacts is applied.
  • the advantage here is that it is made of metal A good thermal connection of the new switch to the device to be protected, but still a good one sufficient lateral electrical insulation due to the cup-like Upper part made of insulating material is reached. Furthermore results a good seal of the housing to the outside because of the the lower part ring-shaped overlapping edge of the upper part can be hot stamped or welded.
  • the lower part on his Edge has an external, circumferential groove with which one Bead is engaged on the inside on the edge of the top is trained.
  • the advantage here is that there is a snap connection, so to speak between the upper and lower part, which results in a Kind of maze seal covering the inside of the case is protected from dirt, etc.
  • This measure ensures not only for a very dust-tight seal of the housing, it also enables easy manufacturing, since after inserting the rear derailleur upper and lower part only have to be locked together to all Connect parts of the switch captively. After that the switch can then be arbitrarily connected to a welding or stamping station transported where the protruding edge is welded or is stamped.
  • Fig. 1 denotes a temperature-dependent switch, which has a housing 11 in which a temperature-dependent Rear derailleur 12 is arranged.
  • the housing 11 comprises a plate-like lower part 14, on the latter raised edge 15 an outer circumferential groove 16 is provided. On the raised edge 15 is supported cup-like upper part 17 with an inner shoulder 18. A shoulder 19 protrudes over the shoulder 18, one inside circumferential bead 21 is provided which engages with the Is groove 16, whereby the lower part 14 with the upper part 17th is locked.
  • the edge 19 merges into an annular overlap 22 which the lower part 14 is held on the upper part 17.
  • This overlap 22 can by stamping or welding a protruding area of the edge 19 are generated.
  • the lower part 14 While the upper part 17 is made of insulating material, the lower part 14 also made of insulating material or metal be made, with a lower part made of metal better thermal connection of the switch 10 to a to be protected Device results.
  • connection electrodes 24, 25 cast, each welded wear stationary contact 26, 27.
  • the two stationary Contacts 26, 27 are on an inner side 28 of the upper part 17 arranged.
  • the two stationary contacts 26, 27 is a current transmission element in the form of a movable contact bridge 29 assigned to the temperature-dependent via a rivet 30 Switch 12 is connected.
  • the switching mechanism 12 includes one Spring washer 34, with its edge 35 circumferentially in a circumferential groove 36 is guided between the shoulder 18th and the edge 15 is formed.
  • the switching mechanism 12 now brings the contact bridge 29 in contact with the two stationary contacts 26, 27 or differentiate them from them.
  • the exact function of the bimetal rear derailleur is in the aforementioned DE 26 44 411 C2 described so that for more information on this Reference is made.
  • the top view of the new switch 10 according to FIG. 2 is to recognize that the two connection electrodes 24, 25 in one piece are connected to external connections 38, 39 which are shown in FIG Case are provided as crimp connections. If the contact bridge 29 is in contact with the two stationary contacts 24, 25, consequently, the two external connections 38, 39 are electrical Conductively connected to each other, the switch 10 is therefore closed.
  • annular space 41 is provided for receiving the switching mechanism 12, wherein on Bottom of the annular space 41, which corresponds to the inside 28, two Receiving spaces 42 and 43 for the stationary contacts 27 and 26 are provided.
  • the stationary contacts 26, 27 are incidentally on the connection electrodes 24, 25 welded or soldered. From the stationary Contacts 26, 27 are remote in the upper part 17 two outward openings 45, 46 are provided, via the on the one hand a thermal coupling of the switch 10 to device to be protected, these openings on the other hand can be provided for test purposes, namely the inside the switch 10 by heating stamp as quickly as possible and / or the two stationary contacts 26, 27 by test pins to contact from outside to ensure the function of the switch 10 to test.
  • connection electrode 24 25 two holes 47 are provided through which Web 48 of the upper part 17, which when spraying the Upper part 17 arise and for an immovable fit Provide connection electrodes 24, 25 in the upper part 17.
  • connection electrodes 24, 25 for the manufacture of an upper part 17 are delivered.
  • the Connection electrodes 24, 25 and 24 ', 25' are in pairs assigned and each have a blade-like head 51, which is integral with the respective via a tapered web 52
  • External connection 38 and 39 is connected.
  • the external connection 38 or 39 is again in each case via a thin holding web 54 connected with a band 55, provided on the transport holes 56 are to advance the tape 55.
  • Fig. 3a The entire arrangement shown in Fig. 3a can e.g. from a Sheet metal are punched out, followed by the stationary ones Contacts 26, 27 are welded, as shown in Fig. 3b is. Then there is a pair of connection electrodes 24, 25 or 24 ', 25' a cup-like upper part 17 is injected. After the spray compound has hardened, the retaining webs are then 54 severed, the upper part 17 being separated from the band 55 and simultaneously the two electrodes 24, 25 be separated from each other. During the further production then the switching mechanism 12 in the upper part 17 or the lower part 14 inserted, the housing 11 by latching between the upper part 17 and lower part 14 closed and finally through Stamping or welding the annular overlap 22 manufactured. The openings 45, 46 serve for pressing down of the upper part 17 on the lower part 14. The by the Manufacturing accuracy thus achieved via the electrodes is better than when directly on plastic areas of the upper part 17 would be pressed, since the dimensional accuracy here is worse.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Thermally Actuated Switches (AREA)
  • Manufacture Of Switches (AREA)
EP97119933A 1997-03-01 1997-11-14 Temperaturabhängiger Schalter mit Kontaktbrücke Expired - Lifetime EP0863527B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19708436 1997-03-01
DE19708436A DE19708436C2 (de) 1997-03-01 1997-03-01 Temperaturabhängiger Schalter mit Kontaktbrücke und Verfahren zu dessen Herstellung

Publications (3)

Publication Number Publication Date
EP0863527A2 EP0863527A2 (de) 1998-09-09
EP0863527A3 EP0863527A3 (de) 1999-05-06
EP0863527B1 true EP0863527B1 (de) 2004-06-09

Family

ID=7821988

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97119933A Expired - Lifetime EP0863527B1 (de) 1997-03-01 1997-11-14 Temperaturabhängiger Schalter mit Kontaktbrücke

Country Status (6)

Country Link
US (1) US6100784A (es)
EP (1) EP0863527B1 (es)
AT (1) ATE268940T1 (es)
DE (2) DE19708436C2 (es)
ES (1) ES2221009T3 (es)
PT (1) PT863527E (es)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004036117B4 (de) * 2004-07-24 2006-12-14 Tmc Sensortechnik Gmbh Thermobimetallschalter
JP2006092825A (ja) * 2004-09-22 2006-04-06 Fuji Denshi Kogyo Kk 温度スイッチと温度スイッチの組立方法
PT2038905E (pt) 2006-07-11 2010-11-10 Thermik Geraetebau Gmbh Pote de conexão e interruptor com pote de conexão
US8717729B2 (en) * 2008-02-12 2014-05-06 Hewlett-Packard Development Company, L.P. Computing devices having fail-safe mechanical shut-off switch
DE102008048554B3 (de) 2008-09-16 2010-02-04 Hofsaess, Marcel P. Temperaturabhängiger Schalter
DE102009025221A1 (de) 2009-06-05 2010-12-16 Hofsaess, Marcel P. Bimetallteil und damit ausgestattete temperaturabhängige Schalter
DE102009061050B4 (de) 2009-06-05 2019-09-05 Marcel P. HOFSAESS Bimetallteil und damit ausgestattete temperaturabhängige Schalter
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
DE102011016142A1 (de) 2011-03-25 2012-09-27 Marcel P. HOFSAESS Temperaturabhängiger Schalter mit Stromübertragungsglied
DE102011101862B4 (de) * 2011-05-12 2012-12-13 Thermik Gerätebau GmbH Temperaturabhängiger Schalter mit Stromübertragungsglied
DE102011107110B4 (de) 2011-07-12 2013-04-18 Marcel P. HOFSAESS Verfahren zum Umgeben eines elektrischen Bauteils mit einem Schutzgehäuse sowie elektrisches Bauteil mit einem Schutzgehäuse
DE102011119632B3 (de) * 2011-11-22 2013-04-11 Marcel P. HOFSAESS Temperaturabhängiges Schaltwerk
AT512726B1 (de) * 2012-04-10 2013-12-15 Elektronik Werkstaette Ing Wurmb Ges M B H Temperaturempfindlicher elektrischer Schalter und Verfahren zu dessen Herstellung
DE202013012037U1 (de) * 2013-02-13 2015-02-10 Thermik Gerätebau GmbH Temperaturabhängiger Schalter
DE102013109291A1 (de) * 2013-08-27 2015-03-05 Thermik Gerätebau GmbH Temperaturabhängiger Schalter mit am Rand eingeklemmter Schnappscheibe
DE102013017232A1 (de) * 2013-10-17 2015-04-23 Thermik Gerätebau GmbH Temperaturabhängiges Schaltwerk
DE102014116888B4 (de) 2014-11-18 2018-05-17 Thermik Gerätebau GmbH Temperaturabhängiger Schalter
DE102015114248B4 (de) 2015-08-27 2019-01-17 Marcel P. HOFSAESS Temperaturabhängiger Schalter mit Schneidgrat
DE102019110448B4 (de) 2019-04-23 2024-10-10 Marcel P. HOFSAESS Temperaturabhängige Schalter und Verfahren zur Herstellung der temperaturabhängigen Schalter
DE102019125450B4 (de) * 2019-09-20 2021-04-08 Marcel P. HOFSAESS Temperaturabhängiger Schalter
DE102019128367B4 (de) * 2019-10-21 2021-06-10 Marcel P. HOFSAESS Temperaturabhängiger schalter
AT523546B1 (de) * 2020-02-24 2021-09-15 Hirtenberger Automotive Safety Gmbh & Co Kg Verfahren zur Herstellung eines Stromtrenners
CN211377096U (zh) * 2020-03-24 2020-08-28 江门市昶顺机电有限公司 插头电源线
DE102023104830B3 (de) 2023-02-28 2024-05-16 Marcel P. HOFSAESS Temperaturabhängiger Schalter
DE102023107381B3 (de) 2023-03-23 2024-05-29 Marcel P. HOFSAESS Verfahren zur Montage eines temperaturabhängigen Schalters

Family Cites Families (16)

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Publication number Priority date Publication date Assignee Title
US2707738A (en) * 1952-11-14 1955-05-03 Siemens Ag Midget thermostatic switch
US2753421A (en) * 1953-03-11 1956-07-03 Stevens Mfg Co Inc Thermostatic switches
US3308255A (en) * 1964-06-08 1967-03-07 Amf Electrica S P A Ambient thermal protector with abutment contact reengagement means mounted on its case
US3496511A (en) * 1968-01-15 1970-02-17 Elmwood Sensors Thermostatic switch for small electrical appliances
DE7630734U1 (de) * 1976-10-01 1977-01-20 Hofsaess, Peter, 7530 Pforzheim Temperaturwächter
DE3122899C2 (de) * 1981-06-10 1984-10-11 Peter 7530 Pforzheim Hofsäss Temperaturschalter
US4476452A (en) * 1982-09-27 1984-10-09 Texas Instruments Incorporated Motor protector
US4581509A (en) * 1984-07-20 1986-04-08 Texas Instruments Incorporated Features of a condition responsive switch
US4620175A (en) * 1985-10-11 1986-10-28 North American Philips Corporation Simple thermostat for dip mounting
GB2239827B (en) * 1986-12-18 1991-10-16 Electrovac Method for joining conductor parts of an electric switch component
DE3644514A1 (de) * 1986-12-24 1988-07-07 Inter Control Koehler Hermann Bimetallschalter
DE8801859U1 (de) * 1987-02-17 1988-05-19 Hofsäss, Peter, 75181 Pforzheim Anschlußteil für Miniaturtemperaturschalter
DE59008766D1 (de) * 1990-04-25 1995-04-27 Hofsaes Geb Zeitz Ulrika Temperaturschalter.
JP2579641Y2 (ja) * 1990-12-14 1998-08-27 アルプス電気株式会社 スイツチ
DE4139091C2 (de) * 1991-11-28 2002-02-07 Hofsaes Geb Zeitz Temperaturschalter in einem dichten Gehäuse
DE4337141C2 (de) * 1993-10-30 1996-06-05 Hofsaes Geb Zeitz Ulrika Temperaturabhängiger Schalter

Also Published As

Publication number Publication date
DE59711703D1 (de) 2004-07-15
ES2221009T3 (es) 2004-12-16
US6100784A (en) 2000-08-08
EP0863527A3 (de) 1999-05-06
DE19708436A1 (de) 1998-09-10
ATE268940T1 (de) 2004-06-15
PT863527E (pt) 2004-10-29
EP0863527A2 (de) 1998-09-09
DE19708436C2 (de) 1999-08-19

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