EP0966014B1 - Interrupteur à commande thermique avec élément de transfert de courant - Google Patents

Interrupteur à commande thermique avec élément de transfert de courant Download PDF

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Publication number
EP0966014B1
EP0966014B1 EP99104241A EP99104241A EP0966014B1 EP 0966014 B1 EP0966014 B1 EP 0966014B1 EP 99104241 A EP99104241 A EP 99104241A EP 99104241 A EP99104241 A EP 99104241A EP 0966014 B1 EP0966014 B1 EP 0966014B1
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EP
European Patent Office
Prior art keywords
switch
stationary contacts
transfer member
current transfer
resistor
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
EP99104241A
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German (de)
English (en)
Other versions
EP0966014A1 (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
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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 EP0966014A1 publication Critical patent/EP0966014A1/fr
Application granted granted Critical
Publication of EP0966014B1 publication Critical patent/EP0966014B1/fr
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
    • 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
    • H01H1/504—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by thermal 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

Definitions

  • the present invention relates to a temperature dependent Switch with a temperature-dependent switching mechanism, the one Rear derailleur housing, which is a lower part as well as a Has upper part, two on the upper part on the inside provided stationary contacts, each with a it is connected to an external connection assigned to it and one the switching mechanism arranged and moved by this switching element, depending on the temperature with the two stationary Contacts in attachment.
  • the known switch has a housing with a cup-like Lower part in which a temperature-dependent switchgear is inserted is.
  • the lower part is closed by an upper part, which is held on by the raised edge of the lower part becomes.
  • the lower part can be made of metal or insulating material be made, while the top here in any case Insulating material exists.
  • the rear derailleur carries a current transmission element in the form of a contact plate, which depending on the temperature with the two stationary contacts in System is brought and then electrically connected.
  • the outer heads of the two rivets serve as solder connections for strands.
  • the temperature-dependent rear derailleur has a bimetallic snap disc as well as a spring washer that is centered on are penetrated a pin that carries the contact plate.
  • the Spring washer is guided circumferentially in the housing the bimetallic snap disc depending on the temperature on the floor of the lower part or on the edge of the spring washer and either the contact plate on the two allows stationary contacts or the contact plate 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 protect electrical devices from overheating.
  • the switch is electrically connected to the one to be protected Device connected in series and mechanically arranged on the device that it is in thermal connection with it.
  • Below the response temperature of the bimetallic snap disc the contact plate is in contact with the two stationary contacts, so that the circuit is closed and the device to be protected is supplied.
  • the temperature rises above an allowable The bimetallic snap disc lifts the contact plate from the stationary contacts, causing the switch opened and the supply of the device to be protected is interrupted so that it can cool down again, whereupon the switch closes automatically.
  • the dimensioning of the contact plate is the known one Switch able compared to other temperature dependent Switches where the operating current of the to be protected Device directly via the bimetallic snap disc or a their associated spring washer flows, much higher operating currents to guide so that it can protect larger electrical Devices with high power consumption can be used.
  • the known switch technically fulfills many requirements, he still has disadvantages in certain applications on.
  • the known switch can also have a current-dependent Switching function, which is another resistor is provided, which is permanently in series with the external connections is switched.
  • the operating current of the to be protected The device therefore flows continuously through this heating resistor can be dimensioned so that when a certain operating current ensures that the bimetallic snap disc heated to above their response temperature is, so that the switch already at an increased operating current opens before the device to be protected heats up excessively Has.
  • This function is also in the known switch but not reliably implemented because the heating resistor is geometrical further away from the bimetallic snap disc is arranged as the resistor for the self-holding function.
  • the known switch does not show how manufacturing tolerances can be balanced, including the assembly seems extremely complex and probably only by hand is to be carried out.
  • a significantly better connection of a resistor to a bimetallic snap disc is known from DE 37 10 672 C2 if also for such a rear derailleur, in which the operating current over a spring washer assigned to the bimetallic snap disk will take on significantly lower values than at the generic switch.
  • DE 37 10 672 C2 known switch there is also a two-part housing, with only a fixed one on the inside of the lid Counter contact is provided with a movable contact works together, which is supported by the spring washer, the presses it against the fixed counter contact. Above the spring washer is a bimetallic snap disc arranged at If their response temperature is exceeded, the moving contact stands out from the fixed counter contact.
  • this object is achieved in the aforementioned Switch solved in that geometrically in the area of the current transmission element and upper part arranged at least one resistor is that at least then electrically between the stationary Contacts is switched when the current transfer element with these in annex.
  • the object on which the invention is based is achieved in this way completely solved.
  • the inventor of the present application has namely recognized that it is also in the generic switch is possible a resistor in the immediate vicinity of the rear derailleur to arrange, so as the thermal coupling of the bimetallic snap disc to the one developed by this resistance To improve heat so that a reproducible and Fast response behavior with current-dependent switching or a reliable keeping open with the self-holding function is achieved.
  • This can affect the self-holding function done that the resistance is provided on the upper part or that Upper part itself is designed as a resistor, as it is e.g. at a PTC cover is the case.
  • the resistance can be provided on the current transmission element, so that it is only then connected in series between the fixed contacts is when the switch is closed Operating current of the device to be protected.
  • the one on the Current transmission element which can be a contact plate, provided Resistance is in the immediate vicinity of the bimetallic snap disc, so that there is an exact response time can be realized because of the good thermal coupling.
  • the resistance value determine reproducibly at what amperage and after the length of time the new switch opens reliably. Is additional the resistance is still provided on the upper part, so it remains the new switch also opened reliably, though here because the very good thermal coupling, even low residual operating currents sufficient to develop the necessary warmth.
  • Another advantage of the new switch is that it is small constructive effort to see with one or both of the safety functions that can now be achieved can.
  • Even the generic switch was simple to be automated, now only in the manufacturing process a current transmission element modified according to the invention and / or one in accordance with the invention an upper part with a resistance must be used, while all other parts of the new switch to those of the generic Switch.
  • the generic Switch only two other components are available, so that you can choose between four different modules Switches can be implemented, namely the generic Switch, a switch with a self-holding function or current-dependent switching or even both safety functions.
  • the rear derailleur comprises a bimetallic snap disk that is mechanical is connected to the current transmission element and this below their switching temperature against the stationary contacts presses and stands out above their switching temperature, further preferably the rear derailleur against a bimetallic snap disk working spring washer that the Current transmission element in the sense of a system to the stationary Prestressed contacts, and the bimetallic snap disk the current transmission element above their switching temperature from the stationary Contacts lifts., Further preferably the spring washer between the current transmission element and the bimetallic snap disk is arranged.
  • the current transmission element is on is approximately round contact plate, which by a pin-like Rivet is centrally connected to the bimetallic snap disc.
  • each one End with the resistance and end with one of the two stationary contacts is connected, further preferably the upper part is interspersed with two rivets, the inner one Heads as stationary contacts and their external heads serve as external connections, further preferably the resistance is selected from the group heating wire, heating foil, Sheet resistance or PTC resistance.
  • both the power transmission link and the top can with their connection options for different resistors and resistance values as mass parts kept in stock be, depending on the requirements of the respective area of application with different types of resistance and / or Resistance values and loaded into the production line be so that the most varied in an extremely simple manner Switches can be produced.
  • the upper part itself is made of PTC material.
  • Fig. 1 10 denotes a temperature-dependent switch, which comprises a temperature-dependent switching mechanism 11, which in a housing 12 is housed.
  • the housing 12 comprises a lower part 14 and a closing part Upper part 15, which by a flanged edge 16th of the lower part 14 is held on this. Between the lower part 14 and the upper part 15, a ring 17 is arranged, the is supported on a shoulder 18 of the lower part 14 and there a spring washer 21 of the switching mechanism 11 leads at its edge.
  • the rear derailleur 11 includes in addition to the spring washer 21 a bimetallic snap disk 22, which together with the spring washer 21 penetrated centrally by a pin-like rivet 23 is through which this with a current transmission element in Form of a contact plate 24 are mechanically connected.
  • the Rivet 23 has a first shoulder 25 on which the bimetallic snap disk with radial and axial play, one second paragraph 26 is provided on which the spring washer 21st also sits with radial and axial play.
  • the already mentioned contact plate 24 points in the direction of Upper part 15 two interconnected contact surfaces 27, 28 on that cooperate with stationary contacts 31, 32, the are inner heads of rivets 33, 34 which pass through the upper part 15 and with their outer heads, external connections 35, 36 form.
  • the temperature of the bimetallic snap disk 22 increases their response temperature, so it snaps from the one shown convex into a concave shape and supports itself their edge in the area of the ring 17 and pulls the contact plate 24 against the force of the spring washer 21 from the stationary Contacts 31, 32 away; switch 10 is now open.
  • Fig. 2 is a top view of the inside 37 of the top 15, with the stationary contacts 31, 32 shown and the rivets 33, 34 are indicated.
  • Arc-shaped extend between the stationary contacts 31, 32 Resistance tracks 41, 42, which at their ends with Pads 43 and 44 are connected, which under the guide the inner heads of the rivets 33, 34 and with them accordingly are electrically connected.
  • Part 15 is made entirely or partially from PTC material.
  • the switch 10 with a current-dependent opening function be provided for what between the contact surfaces 27, 28 heating resistors 45, 46 are switched as this the top view of the contact plate 24 in Fig. 3 can be seen is.
  • the contact surfaces 27, 28 arrive with dashed lines in FIG. 3 indicated stationary contacts 31, 32 in the system, the operating current from the stationary contacts 31, 32 via the contact surfaces 27, 28 and the resistors 45, 46 flows, which thus heat up due to this current flow.
  • the current intensity takes a predetermined time over a predetermined time Value, the heating resistors 45, 46 develop one sufficient heat to the bimetallic snap disk 22 over its Heating the response temperature. Because the heating resistors 45, 46 are arranged directly on the contact plate 24 results a particularly good thermal coupling between the Heating resistors 45, 46 and the bimetallic snap disk 22, see above that a very precise switching function can be set.
  • the heating resistors 45, 46 can also on the bimetallic snap disk 22 facing side of the contact plate 24 is arranged his.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Thermally Actuated Switches (AREA)
  • Control Of Transmission Device (AREA)
  • Electronic Switches (AREA)
  • Thermistors And Varistors (AREA)

Claims (11)

  1. Interrupteur dépendant de la température, comportant un mécanisme de coupure (11) dépendant de la température, un boítier (12) recevant le mécanisme de coupure (11) et qui comporte une partie inférieure (14) et une partie supérieure (15), deux contacts stationnaires (31, 32) prévus sur la partie supérieure (15), sur son côté intérieur (37), dont chacun est relié à une connexion extérieure (35, 36) qui lui est associée, ainsi qu'un organe de transmission de courant disposé sur le mécanisme de coupure (11) et déplacé par celui-ci, et qui est en contact, en fonction de la température, avec les deux contacts stationnaires (31, 32),
    caractérisé en ce qu'il est disposé géométriquement dans la zone de l'organe de transmission de courant et de la partie supérieure (15), au moins une résistance (41, 42 ; 45, 46) qui est mise en circuit électriquement, entre les contacts stationnaires (31, 32), lorsque l'organe de transmission de courant est en contact avec ceux-ci.
  2. Interrupteur selon la revendication 1, caractérisé en ce qu'au moins une résistance (41, 42) est disposée sur le côté intérieur (37) de la partie supérieure (15) et est mise en circuit électrique entre les deux contacts stationnaires (31, 32).
  3. Interrupteur selon la revendication 1 ou 2, caractérisé en ce qu'au moins une résistance (38) est disposée sur l'organe de transmission de courant et est mise en circuit électrique entre deux surfaces de contact (27, 28) associées aux contacts stationnaires (31, 32).
  4. Interrupteur selon l'une des revendications 1 à 3, caractérisé en ce que le mécanisme de coupure (11) comprend un disque à déclic à bilame (22) qui est relié mécaniquement à l'organe de transmission de courant et qui presse celui-ci contre les contacts stationnaires (31, 32), au-dessous de sa température de coupure et le soulève de ceux-ci au-dessus de sa température de coupure.
  5. Interrupteur selon l'une des revendications 1 à 3, caractérisé en ce que le mécanisme de coupure comprend un disque élastique travaillant contre un disque à déclic à bilame (22), qui précontraint l'organe de transmission de courant dans le sens d'une application contre les contacts stationnaires (31, 32), et le disque à déclic à bilame (22) soulève l'organe de transmission de courant des contacts stationnaires (31, 32), au-dessus de sa température de coupure.
  6. Interrupteur selon la revendication 5, caractérisé en ce que le disque élastique (21) est disposé entre l'organe de transmission de courant et le disque à déclic à bilame (22).
  7. Interrupteur selon l'une des revendications 4 à 6, caractérisé en ce que l'organe de transmission de courant est un plateau de contact (24) à peu près circulaire, qui est relié de manière centrée, par un rivet (23) de type tenon, au disque à déclic à bilame (22).
  8. Interrupteur selon l'une des revendications 1 à 7, caractérisé en ce que sur le côté intérieur (37) de la partie supérieure (15) sont prévues deux pistes de connexion (43, 44) dont chacune est reliée à une extrémité à la résistance (38) et à l'autre extrémité, à l'un des deux contacts stationnaires (31, 32).
  9. Interrupteur selon l'une des revendications 1 à 8, caractérisé en ce que la partie supérieure (15) est traversée par deux rivets (33, 34) dont les têtes situées à l'intérieur servent de contacts stationnaires (31, 32) et dont les têtes situées à l'extérieur servent de connexions extérieures (35, 36).
  10. Interrupteur selon l'une des revendications 1 à 9, caractérisé en ce que la résistance (38, 41, 42, 45, 46) est choisie dans le groupe fil métallique chauffant, feuille chauffante, résistance à couches ou résistance CTP.
  11. Interrupteur selon l'une des revendications 1 à 10, caractérisé en ce que la partie supérieure (15) est réalisée dans une matière CTP.
EP99104241A 1998-06-18 1999-03-03 Interrupteur à commande thermique avec élément de transfert de courant Expired - Lifetime EP0966014B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19827113A DE19827113C2 (de) 1998-06-18 1998-06-18 Temperaturabhängiger Schalter mit Stromübertragungsglied
DE19827113 1998-06-18

Publications (2)

Publication Number Publication Date
EP0966014A1 EP0966014A1 (fr) 1999-12-22
EP0966014B1 true EP0966014B1 (fr) 2002-02-06

Family

ID=7871245

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99104241A Expired - Lifetime EP0966014B1 (fr) 1998-06-18 1999-03-03 Interrupteur à commande thermique avec élément de transfert de courant

Country Status (6)

Country Link
US (1) US6249211B1 (fr)
EP (1) EP0966014B1 (fr)
AT (1) ATE213092T1 (fr)
AU (1) AU746905B2 (fr)
DE (2) DE19827113C2 (fr)
ES (1) ES2171058T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4102533A4 (fr) * 2020-03-18 2024-02-28 Bourns KK Disjoncteur, circuit de sécurité et bloc-batterie secondaire

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DE102009039948A1 (de) * 2009-08-27 2011-03-03 Hofsaess, Marcel P. Temperaturabhängiger Schalter
KR100982038B1 (ko) * 2009-10-30 2010-09-14 한백디스템(주) 과전류 차단기
DE102011015116A1 (de) 2011-03-22 2012-09-27 Marcel P. HOFSAESS Verfahren zur Herstellung eines temperaturabhängigen Schalters
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
DE102011119633B3 (de) 2011-11-22 2013-04-11 Marcel P. HOFSAESS Temperaturabhängiger Schalter
DE102012103279B3 (de) 2012-04-16 2013-09-12 Marcel P. HOFSAESS Temperaturabhängiger Schalter sowie Verfahren zur Endmontage eines solchen Schalters
DE102012112207B3 (de) 2012-12-13 2014-02-13 Marcel P. HOFSAESS Temperaturabhängiger Schalter
DE102012112487A1 (de) 2012-12-18 2014-06-18 Thermik Gerätebau GmbH Temperaturschutzschaltung
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
DE102013017232A1 (de) * 2013-10-17 2015-04-23 Thermik Gerätebau GmbH Temperaturabhängiges Schaltwerk
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DE102014110260A1 (de) 2014-07-22 2016-01-28 Thermik Gerätebau GmbH Temperaturabhängiger Schalter mit Isolierfolie
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
DE102015017281B3 (de) 2015-06-30 2021-09-23 Thermik Gerätebau GmbH Temperaturabhängiger Schalter mit Isolierscheibe und elektronische Schaltung
DE102015114248B4 (de) 2015-08-27 2019-01-17 Marcel P. HOFSAESS Temperaturabhängiger Schalter mit Schneidgrat
EP3270401B8 (fr) 2016-07-11 2019-06-26 Thermik Gerätebau GmbH Commutateur thermique doté de vitre isolante
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
DE102019125452B4 (de) * 2019-09-20 2021-04-22 Marcel P. HOFSAESS Temperaturabhängiger Schalter
DE102023107383B3 (de) 2023-03-23 2024-05-29 Marcel P. HOFSAESS Aufnahmevorrichtung für einen temperaturabhängigen Schalter sowie Anordnung mit einer solchen Aufnahmevorrichtung

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4102533A4 (fr) * 2020-03-18 2024-02-28 Bourns KK Disjoncteur, circuit de sécurité et bloc-batterie secondaire

Also Published As

Publication number Publication date
AU746905B2 (en) 2002-05-02
US6249211B1 (en) 2001-06-19
DE19827113C2 (de) 2001-11-29
EP0966014A1 (fr) 1999-12-22
DE19827113A1 (de) 1999-12-30
ATE213092T1 (de) 2002-02-15
DE59900815D1 (de) 2002-03-21
AU3510399A (en) 2000-01-06
ES2171058T3 (es) 2002-08-16

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