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EP2511930B1 - Disjoncteur thermique - Google Patents

Disjoncteur thermique Download PDF

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Publication number
EP2511930B1
EP2511930B1 EP12160468.0A EP12160468A EP2511930B1 EP 2511930 B1 EP2511930 B1 EP 2511930B1 EP 12160468 A EP12160468 A EP 12160468A EP 2511930 B1 EP2511930 B1 EP 2511930B1
Authority
EP
European Patent Office
Prior art keywords
protection switch
spring
insulator body
thermal protection
switch according
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.)
Active
Application number
EP12160468.0A
Other languages
German (de)
English (en)
Other versions
EP2511930A1 (fr
Inventor
Jens Radbruch
Harald Bischoff
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.)
Tmc Sensortechnik GmbH
Original Assignee
Tmc Sensortechnik GmbH
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
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Application filed by Tmc Sensortechnik GmbH filed Critical Tmc Sensortechnik GmbH
Publication of EP2511930A1 publication Critical patent/EP2511930A1/fr
Application granted granted Critical
Publication of EP2511930B1 publication Critical patent/EP2511930B1/fr
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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
    • H01H37/64—Contacts

Definitions

  • the invention relates to a temperature protection switch with the features specified in the preamble of claim 1.
  • a temperature protection switch with the features specified in the preamble of claim 1 is known from US 3,972,016 known.
  • Such a temperature protection switch is used to protect electrical equipment, motors, transformers and the like from overheating. It should open when the temperature at its place of use exceeds a predetermined limit. This limit is hereinafter referred to as the switching temperature.
  • the switching temperature is dictated by a bimetallic disc, which can not change its shape or curvature continuously, but only by leaps and bounds, when a minimum mechanical stress determined by the shape of the bimetallic disc and by its elastic properties has built up by temperature change in the bimetallic disc. For safety reasons, tolerance limits specified for the switching temperature must be observed.
  • a temperature protection switch with the features specified in the preamble of claim 1 is known from DE 195 09 656 C2 known.
  • the bimetallic disc carries the movable contact. When the switch is closed, the current therefore flows over the bimetallic disc. In this case, heat is generated in the bimetal disc, which depends on the current intensity and the ohmic resistance of the bimetallic disc. This is disadvantageous for some applications, because a temperature can be faked by the current heat generated in the contact spring, which is higher than the temperature at the location to be monitored of the electrical device. It may therefore come to unwanted tripping of the bimetallic switch.
  • a temperature protection switch with an improved current carrying capacity is known in which the bimetallic disc carries a contact bridge which connects a fixed contact of the first terminal plate electrically conductively connected to a fixed contact of the second terminal plate with the switch closed.
  • the switch When the switch is closed, the current therefore no longer flows through the bimetal disc, but instead through the contact bridge, which has a much lower electrical resistance.
  • This switch can therefore carry much higher electrical currents before ohmic heat loss leads to an opening of the switch.
  • a temperature protection switch for high currents is also from the DE 10 2008 048 554 B3 known.
  • This switch has a flat insulator body, which carries a connecting plate on its top and bottom.
  • the movable contact is electrically connected via a leaf spring with one of the two connection plates.
  • a bimetallic disc In a recess of the insulator body is a bimetallic disc, against which a buckling of the leaf spring. When snapping the bimetallic disc lifts the leaf spring, so that the attached to the leaf spring movable contact lifts from the fixed contact. Similar to the one from the EP 1 774 555 B1 Thus, the current does not flow through the bimetal disc, so that the permissible currents are not limited by the electrical resistance of the bimetal disc.
  • a temperature protection switch is known in which the connection plates are attached to the outside of a cup-shaped insulator and over each a rivet are connected to a contact inside the insulator.
  • One of the two contacts is formed as a fixed contact, which is arranged on a side wall of the cup-shaped insulator.
  • the fixed contact cooperates with a movable contact, which is connected via a U-shaped spring bent electrically connected to the rivet of the second connection plate.
  • On the spring leg, which carries the movable contact loads a plunger, which is passed through a block-shaped insulator closing block and is moved by a bimetallic disc, which is arranged outside of the cup-shaped insulator body in a metal housing. When the sound temperature is exceeded, the bimetal disc presses the two legs of the contact spring together, so that the movable contact is lifted from the fixed contact.
  • US-A-3972016 discloses a temperature protection switch according to the preamble of claim 1.
  • Object of the present invention is to show a way to realize a compact thermal circuit breaker, which shows a reliable switching behavior, which is largely unaffected by the current heat generated in the temperature protection switch.
  • a temperature protection switch according to the invention advantageously has a construction which is as flat as that of FIG DE 195 09 656 C2 known temperature protection switch.
  • the current carrying capacity of a switch according to the invention is substantially greater, since heating of the bimetallic disc is avoided by ohmic heat loss.
  • the current carrying capacity of a switch according to the invention is as good as the current carrying capacity of the from DE 31 36 312 A1 known switch.
  • a switch according to the invention has a much more compact construction and can be produced more easily.
  • the pot-shaped housing of the known thermal circuit breaker has namely a considerable height result that makes a use for the protection of electric motors practically impossible.
  • the known switch consists of a very large number of items that must be joined together in a large number of complex manufacturing steps.
  • the connection plates and the contact spring must be firmly riveted to the cup-shaped insulator and the metal disk must be fastened to the pot-shaped insulator with a plate-shaped metal housing.
  • An advantageous development of the present invention provides that the two legs of the spring for opening the switch are bent apart from the plunger.
  • the first leg of the spring which carries the movable contact, ie away from the second leg.
  • the spring of a thermal circuit breaker according to the invention is thus claimed on the opening of the switch to train, while in contrast to the legs of the contact spring in which from the DE 31 36 312 A1 known temperature protection switch to open the switch of the plunger are pressed together.
  • the inventive measure that the two legs of the spring to open the switch are bent apart from the plunger, allows a particularly compact design of the thermal circuit breaker.
  • a further advantageous development of the invention provides that the spring is fastened to the second connection plate with a section which extends transversely to the longitudinal direction of the two spring legs. In this way, the spring can be arranged compactly between the two connecting plates.
  • the insulator body is composed of two sub-bodies, wherein the two connecting plates are located between the sub-bodies.
  • the connection plates can be inserted together with the spring and the two contacts in a first part body.
  • a second part body made of an electrically insulating material, preferably made of plastic, placed on the contact plates on the contact plates.
  • the two body parts can be positively connected with each other, for example, by crimping or latching, non-positively, for example, by jamming or hot stamping, or are materially connected, for example, glued or welded.
  • the two partial bodies can also be combined, for example, by the deferred housing but for example, be held together by the deferred housing.
  • the insulator body it is also possible to produce the insulator body by encapsulation of the connection plates.
  • a further advantageous development of the invention provides that the bimetal disc is seated on the outside of the insulator body.
  • the temperature of the bimetallic disc nourishes in this way as far as possible to the ambient temperature of the thermal circuit breaker and remains largely unaffected by heat loss of the current flowing through the thermal circuit breaker current.
  • the bimetallic disc sits in a recess on the outside of the insulator body. In this way, it is advantageous to facilitate the assembly of the thermal circuit breaker.
  • the housing has an upper side and a lower side, which are connected to each other via narrow sides.
  • a housing is flat, which is an important advantage in using the thermal protector to protect motors and similar equipment.
  • the housing is open on one of its narrow sides and attached with this side on the insulator body. Particularly preferred is the housing elongated. The extending in the longitudinal direction of the housing narrow sides then have a greater length than the transverse to the longitudinal direction extending housing opening.
  • a further advantageous development of the present invention provides that a portion of the insulator body protrudes from the housing, for example, the insulator body form a stop for the housing.
  • a portion of the spring is arranged in a protruding from the housing portion. It is particularly preferred that a bent portion of the spring, which connects the two spring legs, arranged in the protruding from the housing portion of the insulator body. This means that a cutting plane defined by the housing opening passes through the spring.
  • the insulator body has on a front side, from which protrude the terminal plates, a protruding portion which lies between the connecting plates. Prefers lies in this section of the bent portion of the spring, which connects the two spring legs
  • a further advantageous development of the present invention provides that the housing is made of a ferromagnetic material, for example of steel. In this way, a magnetic shield can advantageously be achieved by simple means.
  • a further advantageous development of the present invention provides that the plunger protrudes between the two connecting plates when the switch is open. Preferably, the plunger protrudes between the terminal plates even when the switch is closed.
  • the fixed contact can be formed in a temperature protection switch according to the invention of the first terminal plate.
  • the fixed contact is a separate component which is fastened on the connection plate.
  • the in the FIGS. 1 to 4 illustrated thermal circuit breaker has a first terminal plate 1, which carries a fixed contact 2, and a second terminal plate 3, which is electrically connected via a spring 4 with a movable contact 5.
  • the connection plates 1, 3 are in the FIGS. 1 and 3 shown as a one-piece stamped part. After assembly, the connection plates 1, 3 are separated by a connecting the connecting plates web is removed.
  • the fixed contact 2 can be attached to the first connection plate 1, for example by welding or riveting.
  • the preferably U-shaped bent spring 4 can be welded or riveted to the movable contact 5 and to the second connecting plate 3.
  • the connection plates 1, 3 and the contacts 2, 5 and the spring 4 can be pre-assembled into an assembly.
  • the connection plates 1, 3 can still be formed as a common component, as in FIG. 1 is shown. In particular FIG. 3 shows, the spring 4 is arranged over a gap between the two terminal plates 1, 3.
  • connection plates 1, 3 protrude out of an insulator body, which is composed of two part bodies 6a, 6b.
  • the two partial bodies 6a, 6b consist of an electrically insulating material, for example of plastic.
  • the first part body 6a forms a receptacle for the connection plates 1, 3, which is then closed by the second part body 6b.
  • a bimetallic disc 7 On the outside of the insulator body, preferably in a recess of the first part body 6a, a bimetallic disc 7 is arranged, which separates a conductive connection between the two connection plates 1, 3 when a switching temperature is exceeded.
  • the bimetallic disc 7 acts via a plunger 8 on the contact spring 4, which projects between the two connection plates 1, 3 passes.
  • the plunger 8 is arranged in a channel of the first part body 6a.
  • the plunger 8 is pressed by the bimetallic disc 7 against the first leg 4 a of the contact spring 4, which carries the movable contact 5.
  • the first leg 4 a of the second leg 4 b which rests against the second connection plate 3, bent away.
  • the two legs 4a, 4b of the spring 4 to open the temperature protection switch from the plunger 8 are bent apart.
  • the contact spring 4 is So a bow spring, which is bent to open the thermal circuit breaker.
  • the bimetallic disc 7 is held in the recess of an outer side of the first part body 6 a by a ring 9.
  • the ring 9 is preferably made of metal, since so the thermal coupling of the bimetallic disc 7 is improved to the environment of the switch.
  • the ring 9 covers the edge of the bimetallic disc 7 and can be attached to the part body 6a of the insulator body, for example by gluing or clamping, for example by hot stamping.
  • the bimetallic disc 7 is in the illustrated embodiment on a bead of the insulator body. In this way, the contact surface between bimetallic disc 7 and insulator body can thus minimize the heat coupling of the bimetallic disc.
  • the insulator body 6a, 6b is inserted into a housing 10 after assembly.
  • the housing 10 is a flat housing cap.
  • the housing 10 thus has a top and a bottom, which are connected by narrow sides. On one of the narrow sides of the housing 10 is open, so that in this end of the preferably elongated housing 10 of the insulator body 6a, 6b can be inserted.
  • the terminal plates 1, 3 project with one end out of the housing 10.
  • Fig. 4 shows, the insulator body 6a, 6b protrudes from the housing 10.
  • a portion of the spring 4 is arranged, namely the two spring legs 4a, 4b connecting bent portion. The spring 4 is thus only partially arranged in the housing 10.
  • connection plates 1, 3 protrude from an end face of the insulator body 6a, 6b.
  • At the front side of the insulator body 6a, 6b has a protruding portion which lies between the two connecting plates. This projecting portion protrudes from the housing 10 and contains the bent portion of the spring 4, which connects the two spring legs.
  • the housing 10 may be made of ferromagnetic metal, such as steel, to magnetically shield the derailleur of the thermal circuit breaker. This is for example when using the temperature protection switch important for electric motors or transformers, since in such applications typically strong magnetic fields occur.
  • the bimetal disc 7 is preferably a circular disc, but may also have a different shape and be formed for example as an elongated strip.
  • FIG. 5 shows an exploded view of another embodiment of a thermal circuit breaker.
  • This embodiment differs from the embodiment described above substantially only in that a self-holding function of the switch has been added.
  • This self-holding function causes enough heat to be produced after opening the switch to prevent the switch from automatically closing.
  • a resistor 11 preferably a ceramic resistor, such as a PTC resistor, is provided, which connects the two terminal plates 1, 3 electrically conductive with each other.
  • the resistor 11 can be pressed by a leaf spring 12 against the two connecting plates 1, 3.
  • An electrical resistance for a self-holding function for example, outside of the housing, for example, on a protruding from the housing opening end face of the insulator body 6a, 6b are arranged. It is also possible to form the insulator body 6a, 6b as an electrical resistance for a self-holding function. In this case, the insulator body 6a, 6b or at least one of the two body parts 6a, 6b, a poor insulator or a bad electrical conductor, so that when the switch is open by the insulator body flows a current that generates sufficient heat loss to cool the To prevent bimetallic disc 7 below its switching temperature.

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Thermally Actuated Switches (AREA)

Claims (9)

  1. Interrupteur thermique avec
    une première plaque de raccordement (1) dotée d'un contact fixe (2),
    une deuxième plaque de raccordement (3) qui est reliée en conduisant l'électricité avec un contact mobile (5),
    un corps d'isolateur (6a, 6b), et
    un disque bimétallique (7) qui sépare une liaison conductrice entre les deux plaques de raccordement (1, 3) lors du dépassement d'une température de commutation, où le contact mobile (5) est fixé à une première patte (4a) d'un ressort (4) qui est en contact avec la deuxième plaque de raccordement (3) avec sa deuxième patte (4b), où un poussoir (8) est disposé entre la première patte (4a) du ressort (4) et le disque bimétallique (7), qui pousse le poussoir (8) contre la première patte (4a) lors du dépassement de la température de commutation et enlève ainsi le contact mobile (5) du contact fixe (2), caractérisé en ce que
    les deux plaques de raccordement (1, 3) dépassent hors du corps d'isolateur (6a, 6b),
    le corps d'isolateur (6a, 6b) est branché dans un boîtier (10), qui présente une face supérieure et une face inférieure qui sont reliées ensemble par leurs côtés étroits, le boîtier (10) est ouvert au niveau de l'un de ses côtés étroits et est branché sur le corps d'isolateur (6a, 6b) avec ce côté, et
    les deux pattes (4a, 4b) du ressort (4) sont détachées l'une de l'autre par le poussoir (8) pour l'ouverture de l'interrupteur thermique.
  2. Interrupteur thermique selon la revendication 1, caractérisé en ce que la deuxième patte (4b) du ressort (4) est plaquée contre la deuxième plaque de raccordement (3).
  3. Interrupteur thermique selon l'une des revendications précédentes, caractérisé en ce que le corps d'isolateur est assemblé à partir de deux corps partiels (6a, 6b), où les deux plaques de raccordement (1, 3) se situent entre les deux corps partiels (6a, 6b).
  4. Interrupteur thermique selon l'une des revendications précédentes, caractérisé en ce que le boîtier (10) est constitué d'un matériau ferromagnétique, de préférence d'acier.
  5. Interrupteur thermique selon l'une des revendications précédentes, caractérisé en ce que le disque bimétallique (7) est ancré à l'extérieur sur le corps d'isolateur.
  6. Interrupteur thermique selon la revendication 5, caractérisé en ce que le disque bimétallique (7) est disposé dans une cavité sur la face extérieure du corps d'isolateur.
  7. Interrupteur thermique selon l'une des revendications précédentes, caractérisé en ce que le poussoir (8) dépasse d'entre les deux plaques de raccordement (1, 3) pour l'interrupteur ouvert.
  8. Interrupteur thermique selon l'une des revendications précédentes, caractérisé en ce que le corps d'isolateur porte un anneau (9) qui recouvre le bord du disque bimétallique (7).
  9. Interrupteur thermique selon l'une des revendications précédentes, caractérisé en ce qu'au moins l'une des deux pattes (4b) du ressort (4) a un prolongement qui s'étend perpendiculairement par rapport à la direction longitudinale de la patte (4b).
EP12160468.0A 2011-04-13 2012-03-21 Disjoncteur thermique Active EP2511930B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011016896.6A DE102011016896C5 (de) 2011-04-13 2011-04-13 Temperaturschutzschalter

Publications (2)

Publication Number Publication Date
EP2511930A1 EP2511930A1 (fr) 2012-10-17
EP2511930B1 true EP2511930B1 (fr) 2016-01-20

Family

ID=45939133

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12160468.0A Active EP2511930B1 (fr) 2011-04-13 2012-03-21 Disjoncteur thermique

Country Status (3)

Country Link
EP (1) EP2511930B1 (fr)
DE (1) DE102011016896C5 (fr)
PL (1) PL2511930T3 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012112207B3 (de) * 2012-12-13 2014-02-13 Marcel P. HOFSAESS Temperaturabhängiger Schalter
DE102013108504C5 (de) 2013-08-07 2018-11-15 Thermik Gerätebau GmbH Temperaturabhängiger Schalter
DE102013108508A1 (de) 2013-08-07 2015-02-12 Thermik Gerätebau GmbH Temperaturabhängiger Schalter
DE102013022331B4 (de) 2013-08-07 2020-10-29 Thermik Gerätebau GmbH Temperaturabhängiger Schalter
CN106960762B (zh) * 2017-05-05 2018-11-30 佛山市川东磁电股份有限公司 一种手动复位热敏温控器
CN106935440B (zh) * 2017-05-05 2018-12-11 佛山市川东磁电股份有限公司 一种低阻值热敏温控器
CN106960763B (zh) * 2017-05-05 2018-12-11 佛山市川东磁电股份有限公司 一种稳定型低阻温控器
CN106960761B (zh) * 2017-05-05 2018-12-11 佛山市川东磁电股份有限公司 一种便于微型化的温控器结构
CN107230582A (zh) * 2017-07-28 2017-10-03 宝应电器厂 一种双金属片式电动机热保护器及其制作工艺
DE102019110448B4 (de) 2019-04-23 2024-10-10 Marcel P. HOFSAESS Temperaturabhängige Schalter und Verfahren zur Herstellung der temperaturabhängigen Schalter

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972016A (en) 1974-06-28 1976-07-27 Therm-O-Disc Incorporated Thermostat
DE3136312A1 (de) 1981-01-29 1982-08-19 Elmwood Sensors Inc., Cranston, R.I. Thermostatschalter
DE3139723A1 (de) 1980-11-21 1982-09-16 Sundstrand Data Control, Inc., 98052 Redmond, Wash. Thermoschalter sowie montageverfahren und -werkzeug dafuer
US4669182A (en) 1984-01-23 1987-06-02 Therm-O-Disc, Incorporated Method of gaging a snap disc condition sensor
US5043690A (en) 1990-07-12 1991-08-27 Sundstrand Data Control, Inc. Balanced snap action thermal actuator
US5059937A (en) 1990-10-23 1991-10-22 Therm-O-Disc, Incorporated Switch assembly
DE4414859C1 (de) 1994-04-28 1995-09-28 Widmaier Fa Hans Thermoschalter
DE19509656C2 (de) 1995-03-17 1997-01-16 Radbruch Jens Dipl Ing Temperaturschutzschalter
DE19637706A1 (de) 1995-09-11 1997-03-13 Elmwood Sensors Thermoschalter mit Rückstellung
DE19922633A1 (de) 1998-05-22 1999-11-25 Portage Electric Prod Inc Thermostat
US20040066269A1 (en) 2000-05-30 2004-04-08 Truong Nguyen Bimetal snap disc thermostat with heaters
FR2853760A1 (fr) 2003-04-08 2004-10-15 Etls Dispositif thermostatique a maintien d'ouverture apres declenchement
US20040252004A1 (en) 2003-06-13 2004-12-16 Eiichi Hashimoto Thermoprotector
DE102007014237A1 (de) 2007-03-16 2008-09-18 Hofsaess, Marcel P. Temperaturabhängiger Schalter und dafür vorgesehenes Schaltwerk
EP1774555B1 (fr) 2004-07-24 2008-12-17 TMC Sensortechnik GmbH Thermorupteur bimetallique
DE102008048554B3 (de) 2008-09-16 2010-02-04 Hofsaess, Marcel P. Temperaturabhängiger Schalter
EP2234138A2 (fr) 2009-03-27 2010-09-29 Inter Control Hermann Köhler Elektrik GmbH & Co. KG Cintre/Connexion bimétallique et procédé de fabrication

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972016A (en) 1974-06-28 1976-07-27 Therm-O-Disc Incorporated Thermostat
DE3139723A1 (de) 1980-11-21 1982-09-16 Sundstrand Data Control, Inc., 98052 Redmond, Wash. Thermoschalter sowie montageverfahren und -werkzeug dafuer
DE3136312A1 (de) 1981-01-29 1982-08-19 Elmwood Sensors Inc., Cranston, R.I. Thermostatschalter
US4669182A (en) 1984-01-23 1987-06-02 Therm-O-Disc, Incorporated Method of gaging a snap disc condition sensor
US5043690A (en) 1990-07-12 1991-08-27 Sundstrand Data Control, Inc. Balanced snap action thermal actuator
US5059937A (en) 1990-10-23 1991-10-22 Therm-O-Disc, Incorporated Switch assembly
DE4414859C1 (de) 1994-04-28 1995-09-28 Widmaier Fa Hans Thermoschalter
DE19509656C2 (de) 1995-03-17 1997-01-16 Radbruch Jens Dipl Ing Temperaturschutzschalter
DE19637706A1 (de) 1995-09-11 1997-03-13 Elmwood Sensors Thermoschalter mit Rückstellung
DE19922633A1 (de) 1998-05-22 1999-11-25 Portage Electric Prod Inc Thermostat
US20040066269A1 (en) 2000-05-30 2004-04-08 Truong Nguyen Bimetal snap disc thermostat with heaters
FR2853760A1 (fr) 2003-04-08 2004-10-15 Etls Dispositif thermostatique a maintien d'ouverture apres declenchement
US20040252004A1 (en) 2003-06-13 2004-12-16 Eiichi Hashimoto Thermoprotector
DE102004028120A1 (de) 2003-06-13 2005-01-05 Hosiden Corp., Yao Thermoschutzschalter
EP1774555B1 (fr) 2004-07-24 2008-12-17 TMC Sensortechnik GmbH Thermorupteur bimetallique
DE102007014237A1 (de) 2007-03-16 2008-09-18 Hofsaess, Marcel P. Temperaturabhängiger Schalter und dafür vorgesehenes Schaltwerk
DE102008048554B3 (de) 2008-09-16 2010-02-04 Hofsaess, Marcel P. Temperaturabhängiger Schalter
EP2234138A2 (fr) 2009-03-27 2010-09-29 Inter Control Hermann Köhler Elektrik GmbH & Co. KG Cintre/Connexion bimétallique et procédé de fabrication

Also Published As

Publication number Publication date
PL2511930T3 (pl) 2016-09-30
DE102011016896B3 (de) 2012-08-23
EP2511930A1 (fr) 2012-10-17
DE102011016896C5 (de) 2016-10-27

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