EP0813215B1 - Temperaturwächter mit einer Kaptonfolie - Google Patents
Temperaturwächter mit einer Kaptonfolie Download PDFInfo
- Publication number
- EP0813215B1 EP0813215B1 EP97106210A EP97106210A EP0813215B1 EP 0813215 B1 EP0813215 B1 EP 0813215B1 EP 97106210 A EP97106210 A EP 97106210A EP 97106210 A EP97106210 A EP 97106210A EP 0813215 B1 EP0813215 B1 EP 0813215B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cover
- lower housing
- cover part
- film
- housing part
- 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
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
- 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 monitor a bimetal rear derailleur that switches at overtemperature, one the switchgear housing lower part, one the lower housing part closing lid part and a Kapton film, which are arranged between the lower housing part and the cover part and for a mechanical seal between the lower part of the housing and the lid part.
- Such a temperature monitor is known from US-A-48 49 729.
- the known temperature monitor comprises a housing with a Cover made of insulating material, on the inside a resistance track is arranged, which serves as a self-holding resistor.
- the lid is placed on a base made of electrically conductive material, making electrical contact to one end of the resistance track is made for an electrical connection between the connection on the lid and the lower part.
- a Kapton disc be provided between the lid and the lower part to provide mechanical sealing, to avoid soldering the housing.
- the lower part of the housing and the cover part are made of conductive Material, preferably metal, so that it is very stable and are pressure-resistant.
- the bimetal rear derailleur usually includes a spring washer, which is with its edge on the bottom of the lower housing part supports and carries a movable contact part in the middle, that pushes it against the inside of the lid part, where a fixed counter contact is arranged. Via the movable contact part is a bimetallic snap disc that slipped underneath their switching temperature rests without force on the spring washer. Such a temperature monitor is on the cover part and contacted the housing base, the current from the Cover part over the counter contact and the spring washer to the Lower housing part flows.
- the temperature of the bimetallic snap disc becomes impermissible raised, it jumps from its convex into a concave Form in which it against the force of the spring washer movable contact part stands out from the mating contact and thus opens the circuit.
- the Cover part is insulated from the lower housing part, what through the already mentioned Kapton film.
- the Kapton film also covers the inside of the lid part, so that the edge is in its high temperature position here supporting bimetal snap disc no short circuit can produce between the cover part and the spring washer.
- Kapton film it is known to use another insulating film instead of the Kapton film to be used, e.g. be made of Nomex or Teflon can.
- the thickness of the Kapton film is 75 ⁇ m, this thickness is determined by the desired dielectric strength. It is noted that in the open state over the Kapton film a voltage drops that corresponds to the level of the mains voltage can correspond.
- the temperature monitors with connecting wires with epoxy, silicone or other coating compositions either whole or but only encased on the areas where penetration is possible for dust, water, oil etc. are present. These wrappings require additional costly operations.
- the cover part on his Inside a bead or in the area of its edge Has rib which the Kapton film in the area of its support area at least partially constricted, the bead preferably has a thickness that is greater than 20 microns.
- the Kapton film from one non-porous and non-linting material is made that moreover has some elasticity so that it too can be compressed to a certain extent.
- the bead now partially penetrates the material, so to speak the Kapton film and acts as a kind of sealing lip.
- the bead or sealing lip can be used for this be ensured that the required dielectric strength is retained, while on the other hand a sufficiently high penetration depth can be achieved so that the desired mechanical Sealing is achieved.
- the force required namely, to press the bead into the Kapton disc is less than the force required to pull the Kapton film in the entire support area.
- the Kapton film is preferably thicker by at least 25 ⁇ m designed as was the case in the prior art, so they are compressed in the contact area by this amount (25 ⁇ m) can be. Remains outside the support and press area maintain the original thickness of the Kapton film more or less, so that overall a very good seal between Cover part and lower housing part results.
- the thickness of the Kapton film is chosen so that the required electrical dielectric strength is achieved.
- the temperature monitor 10 comprises a pot-shaped lower housing part 11 and a Lower housing part 11 closing cover part 12, which on a inner shoulder 13 of the lower housing part 11 rests.
- the temperature monitor 10 is a flange 14 of the Closed lower housing part 11, the lid part 12 the circumferential shoulder 13 presses.
- Bimetal rear derailleur 15 In the interior of the lower housing part 11 there is a Bimetal rear derailleur 15, which is of conventional construction. It includes a spring washer 16 which is a movable contact member 17 carries, over which a bimetallic snap disk 18 is placed is. The spring washer 16 is supported on a bottom 19 of the Pot-shaped lower part of the housing and thus clamps the movable Contact part 17 against a fixed contact part 20, which on the Cover part 12 is provided on the inside 21 thereof.
- this temperature monitor 10 housing lower part 11 and Cover part 12 made of conductive material, preferably made of metal manufactured so that a Kapton film 22 is provided, which Cover part 12 opposite the lower housing part 11 electrically isolated.
- the contacting of the temperature monitor 10 takes place on the one hand via the cover part 12 and on the other hand via the Lower housing part 11, as is known per se.
- Fig. 1 it can also be seen that the Kapton film 22nd extends over the entire inside 21 of the cover part 12, an opening 23 is provided through which the movable Contact part 17 protrudes.
- the Kapton film 22 has a thickness indicated at 25, which is greater than 100 microns and is preferably 125 microns. Because of this thickness 25, the cover part 12 can be with its edge 27 on the Kapton film 22 in its support area 28 through the Flare edge 14 are pressed onto the edge 13 so that the Support area 28 is at least partially compressed. This compressed contact area 28 is in FIG. 1 indicated, the change in thickness 25 is in this range however not recognizable for reasons of illustration.
- the Kapton film 22 made of elastic, lint-free material is made, which is also not porous, can in this way for a good mechanical seal between the cover part 12 and the lower housing part 11 are taken care of.
- the support area 28 results in a particularly good mechanical seal, so that neither dust nor Liquid / moisture inside the temperature monitor 10 can penetrate.
- cover part 12 and lower housing part 11 made of electrical conductive material, there are also others Constructions conceivable in which e.g. the cover part 12 electrically insulating material is made and the solid Contact part 20 itself in the manner of a rivet through the cover part 12 extends through and is contacted from the outside.
- the Kapton film takes over 22 only the function of the mechanical seal, since electrical insulation is not required.
- the switching mechanism 15 has one Temperature below its response temperature so that it is in the closed state in which it is for one conductive connection between the fixed contact part 20 and thus the electrically conductive cover part 12 and the bottom 19 and so that the electrically conductive lower housing part 11 provides.
- the temperature of the switching mechanism 15 is now increased, it snaps the bimetallic snap disk 18 suddenly from that shown convex shape to a concave shape and is based on the Underside of the lid part 12 with the Kapton film interposed 22 such that it is the movable contact part against the force the spring washer 18 lifts off the fixed contact part 20.
- a cover part 12 ' is shown, which at the new temperature monitor from Fig. 1 is used.
- This cover part 12 ' has in the region of its edge 27 on the inside 21 a bead 31 or a rib on the a thickness indicated at 32 of greater than 20 ⁇ m, preferably of 30 ⁇ m.
- the bead 31 presses in the manner of a sealing lip in the area of the support area 28 into the material of the Kapton film 22 and thus ensures a mechanical seal between cover part 12 'and lower housing part 11th
- the thickness 25 of the Kapton film 22 and the thickness 32 of the bead 31 are matched to one another so that after flanging the Flanged edge 14 remaining in the area of the bead 31 remaining thickness of the Kapton film 22 is still sufficient for to ensure the required dielectric strength.
- the thickness 32 chosen so that the mechanical seal particularly well done.
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Thermally Actuated Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Exposure Control For Cameras (AREA)
- Secondary Cells (AREA)
- Sealing Devices (AREA)
- Road Signs Or Road Markings (AREA)
Description
- Fig.1
- einen neuen Temperaturwächter in einer geschnittenen Seitenansicht, bei dem die Kaptonfolie im Bereich ihrer Auflagefläche verformt ist (nicht erkennbar) ; und
- Fig. 2
- ein erfindungsgemäßes Deckelteil, das bei dem Temperaturwächter aus Fig. 1 verwendet wird.
Claims (6)
- Temperaturwächter mit einem bei Übertemperatur schaltenden Bimetall-Schaltwerk (15), einem das Schaltwerk (15) aufnehmendem Gehäuseunterteil (11), einem das Gehäuseunterteil (11) verschließenden Deckelteil (12) sowie einer Kaptonfolie (22), die zwischen dem Gehäuseunterteil (11) und dem Deckelteil (12) angeordnet ist und für eine mechanische Abdichtung zwischen dem Gehäuseunterteil (11) und dem Deckelteil (12) sorgt, dadurch gekennzeichnet, daß das Deckelteil (12) an seiner Innenseite (21) eine im Bereich seines Randes (27) umlaufende Wulst (31) aufweist, die die Kaptonfolie (22) im Bereich ihres Auflagebereichs (28) zumindest zum Teil einschnürt.
- Temperaturwächter nach Anspruch 1, dadurch gekennzeichnet, daß die Kaptonfolie (22) eine Dicke (25) aufweist, die größer als 100 µm ist.
- Temperaturwächter nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Deckelteil (12) mit seinem Rand (27) die Kaptonfolie (22) in ihrem Auflagebereich (28) zwischen dem Rand (27) und einer Schulter (13) des Gehäuseunterteils (11) zusammendrückt.
- Temperaturwächter nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Wulst (31) eine Dicke (32) aufweist, die größer als 20 µm ist.
- Temperaturwächter nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Gehäuseunterteil (11) und das Deckelteil (12) aus leitfähigem Material gefertigt sind.
- Temperaturwächter nach Anspruch 5, dadurch gekennzeichnet, daß das Gehäuseunterteil (11) und das Deckelteil (12) aus Metall gefertigt sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19623570A DE19623570C2 (de) | 1996-06-13 | 1996-06-13 | Temperaturwächter mit einer Kaptonfolie |
DE19623570 | 1996-06-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0813215A1 EP0813215A1 (de) | 1997-12-17 |
EP0813215B1 true EP0813215B1 (de) | 2002-04-03 |
Family
ID=7796833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97106210A Expired - Lifetime EP0813215B1 (de) | 1996-06-13 | 1997-04-16 | Temperaturwächter mit einer Kaptonfolie |
Country Status (6)
Country | Link |
---|---|
US (1) | US5877671A (de) |
EP (1) | EP0813215B1 (de) |
AT (1) | ATE215730T1 (de) |
DE (2) | DE19623570C2 (de) |
ES (1) | ES2175212T3 (de) |
PT (1) | PT813215E (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2282320A1 (de) | 2009-08-01 | 2011-02-09 | Limitor GmbH | Bimetall-Schnappscheibe |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10110562C1 (de) * | 2001-03-06 | 2002-12-19 | Marcel Hofsaes | Temperaturabhängiger Schalter mit aufgestempelter Kleberschicht |
CN100446148C (zh) * | 2005-11-07 | 2008-12-24 | 徐佳义 | 手动复位温控器 |
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 |
DE102011016133B4 (de) | 2011-03-29 | 2012-10-18 | Marcel P. HOFSAESS | Temperaturabhängiger Schalter mit Vorwiderstand |
EP2506281B1 (de) | 2011-03-29 | 2015-10-07 | Marcel P. Hofsaess | Temperaturabhängiger Schalter mit Vorwiderstand |
DE102011104984B4 (de) | 2011-06-20 | 2013-11-28 | Marcel P. HOFSAESS | Temperaturabhängiger Schalter mit Heizwiderstand auf Trägerplatte |
DE102013101393B4 (de) | 2013-02-13 | 2014-10-09 | Thermik Gerätebau GmbH | Temperaturabhängiger Schalter |
DE202013012037U1 (de) | 2013-02-13 | 2015-02-10 | Thermik Gerätebau GmbH | Temperaturabhängiger Schalter |
DE102013102006B4 (de) * | 2013-02-28 | 2015-03-05 | Marcel P. HOFSAESS | Temperaturabhängiger Schalter |
DE102013102089B4 (de) * | 2013-03-04 | 2015-02-12 | Marcel P. HOFSAESS | Temperaturabhängiger Schalter mit Isolierscheibe |
DE102013108508A1 (de) | 2013-08-07 | 2015-02-12 | Thermik Gerätebau GmbH | Temperaturabhängiger Schalter |
US9831054B2 (en) * | 2014-03-27 | 2017-11-28 | Littelfuse, Inc. | Insulated thermal cut-off device |
DE102014110260A1 (de) * | 2014-07-22 | 2016-01-28 | Thermik Gerätebau GmbH | Temperaturabhängiger Schalter mit Isolierfolie |
DE102014116888B4 (de) | 2014-11-18 | 2018-05-17 | Thermik Gerätebau GmbH | Temperaturabhängiger Schalter |
DE102015017281B3 (de) | 2015-06-30 | 2021-09-23 | Thermik Gerätebau GmbH | Temperaturabhängiger Schalter mit Isolierscheibe und elektronische Schaltung |
DE102015110509B4 (de) | 2015-06-30 | 2019-03-28 | Thermik Gerätebau GmbH | Temperaturabhängiger Schalter mit lsolierscheibe und elektronische Schaltung mit einemauf einer Leiterplatte montierten, temperaturabhängigen Schalter |
DE102015114248B4 (de) | 2015-08-27 | 2019-01-17 | Marcel P. HOFSAESS | Temperaturabhängiger Schalter mit Schneidgrat |
ES2741350T3 (es) | 2016-07-11 | 2020-02-10 | Thermik Geraetebau Gmbh | Interruptor dependiente de la temperatura con arandela aislante |
DE102018100890B3 (de) | 2018-01-16 | 2019-07-18 | Marcel P. HOFSAESS | Temperaturabhängiger Schalter |
DE102018130078B4 (de) | 2018-11-28 | 2020-10-15 | Marcel P. HOFSAESS | Temperaturabhängiger Schalter |
US11195679B2 (en) | 2018-11-28 | 2021-12-07 | Marcel P. HOFSAESS | Temperature-dependent switch |
DE102019111279B4 (de) * | 2019-05-02 | 2020-11-12 | Marcel P. HOFSAESS | Temperaturabhängiger Schalter |
DE102019112074B4 (de) | 2019-05-09 | 2020-12-17 | Marcel P. HOFSAESS | Temperaturabhängiger Schalter |
DE102019112581B4 (de) | 2019-05-14 | 2020-12-17 | Marcel P. HOFSAESS | Temperaturabhängiger Schalter |
DE102019125450B4 (de) * | 2019-09-20 | 2021-04-08 | Marcel P. HOFSAESS | Temperaturabhängiger Schalter |
DE102019132433B4 (de) | 2019-11-29 | 2021-08-12 | Marcel P. HOFSAESS | Temperaturabhängiger Schalter und Verfahren zu dessen Herstellung |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3430177A (en) * | 1966-12-30 | 1969-02-25 | Texas Instruments Inc | Miniature thermostatic switch |
DE3710672C2 (de) * | 1987-03-31 | 1997-05-15 | Hofsaes Geb Zeitz Ulrika | Temperaturwächter mit einem Gehäuse |
DE8806648U1 (de) * | 1988-05-20 | 1989-06-22 | Hofsaess, Peter, 7530 Pforzheim, De | |
DE4142716C2 (de) * | 1991-12-21 | 1997-01-16 | Microtherm Gmbh | Thermoschalter |
DE4233676A1 (de) * | 1992-10-07 | 1994-04-14 | Ego Elektro Blanc & Fischer | Elektrischer Heizkörper für Medien, insbesondere Durchflußerhitzer |
DE4337141C2 (de) * | 1993-10-30 | 1996-06-05 | Hofsaes Geb Zeitz Ulrika | Temperaturabhängiger Schalter |
-
1996
- 1996-06-13 DE DE19623570A patent/DE19623570C2/de not_active Expired - Fee Related
-
1997
- 1997-04-16 PT PT97106210T patent/PT813215E/pt unknown
- 1997-04-16 DE DE59706826T patent/DE59706826D1/de not_active Expired - Lifetime
- 1997-04-16 AT AT97106210T patent/ATE215730T1/de active
- 1997-04-16 EP EP97106210A patent/EP0813215B1/de not_active Expired - Lifetime
- 1997-04-16 ES ES97106210T patent/ES2175212T3/es not_active Expired - Lifetime
- 1997-06-13 US US08/874,514 patent/US5877671A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2282320A1 (de) | 2009-08-01 | 2011-02-09 | Limitor GmbH | Bimetall-Schnappscheibe |
Also Published As
Publication number | Publication date |
---|---|
PT813215E (pt) | 2002-09-30 |
DE19623570A1 (de) | 1998-01-02 |
EP0813215A1 (de) | 1997-12-17 |
DE19623570C2 (de) | 1998-05-28 |
ATE215730T1 (de) | 2002-04-15 |
US5877671A (en) | 1999-03-02 |
ES2175212T3 (es) | 2002-11-16 |
DE59706826D1 (de) | 2002-05-08 |
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