EP1481210B1 - Refrigeration device equipped with a door sensor - Google Patents

Refrigeration device equipped with a door sensor Download PDF

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Publication number
EP1481210B1
EP1481210B1 EP03742507.1A EP03742507A EP1481210B1 EP 1481210 B1 EP1481210 B1 EP 1481210B1 EP 03742507 A EP03742507 A EP 03742507A EP 1481210 B1 EP1481210 B1 EP 1481210B1
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EP
European Patent Office
Prior art keywords
housing
switch
refrigeration appliance
appliance according
board
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
EP03742507.1A
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German (de)
French (fr)
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EP1481210A1 (en
Inventor
Claudia Rupp
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.)
BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/008—Alarm devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0006—Permanent magnet actuating reed switches
    • H01H36/0046—Limit switches, also fail-safe operation or anti-tamper considerations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/02—Sensors detecting door opening
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5866—Electric connections to or between contacts; Terminals characterised by the use of a plug and socket connector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0006—Permanent magnet actuating reed switches
    • H01H36/0033—Mountings; Housings; Connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/08—Arrangements to facilitate replacement of a switch, e.g. cartridge housing

Definitions

  • Refrigeration devices are conventionally equipped with a switch for detecting an opening or closing of their door or doors.
  • a known design are mechanically operated electrical switches that are mounted on the housing of the refrigerator near the door and interact with a switch cam on the door.
  • a switch can e.g. be fixed in a front bar made of metal or plastic on the front of the device just above or below a door and operated via an opening in the front bar.
  • the switch is actuated via a body that is firmly connected to the door.
  • the switch can usually be removed non-destructively in the event of repair, and a new switch can be installed in the same place.
  • a disadvantage of this solution is the mechanical sensitivity of the switch, in particular its movable plunger that can be actuated by the door. This can be damaged in particular when transporting such a refrigerator. If the door is not exactly positioned, e.g. Because the door stop has been changed when the device was set up, or because the door is heavily loaded, it may happen that the plunger and the switch body of the door do not overlap sufficiently and the switch therefore does not switch.
  • the magnetically actuated switch is not soldered directly to the electronic board, but to an auxiliary board, which in turn is provided with electrical lines and / or a plug in order to establish the connection to the electronic board.
  • This has the advantage that the magnetically actuated switch can be placed in a different place in the interior of the plastic housing than the electronics board itself.
  • the switch can only be positioned within the interior of the housing which is also the electronics board. This switch can only be used to detect the opening and closing of a door that is located directly above or below the housing. In particular, in the case of a multi-door refrigerator, this known solution cannot be used on a door that is not adjacent to the housing of the electronic board.
  • the publication JP 08 303945 A describes a refrigerator with a magnet and a Hall element mounted on a circuit board, which is attached in a storage box that is open on one side.
  • the publication JP 07 318234 A describes a refrigerator with a magnet at one end of a support frame of a drawer-like door and a magnetic sensor in a foamed heat insulator in a side wall of the refrigerator opposite the magnet.
  • the publication DE 197 20 601 C deals with a device for generating a switching signal with a reed contact.
  • the publication DE 2905698 A1 discloses a refrigerator according to the preamble of claim 1.
  • the object of the invention is to provide a refrigerator with a door opening sensor which is insensitive to the influence of moisture, which can be mounted on a refrigerator housing in a largely arbitrary position close to the door and which can be easily replaced.
  • a refrigerator with the features of claim 1. Because its switch is designed with its own housing and can be plugged in, it can be mounted at any point on the refrigerator housing, where an opening can be created to accommodate the switch.
  • the switch preferably a reed switch, is mounted on a circuit board accommodated in the housing, an edge of which carries the plug contacts required for contacting the switch. These plug contacts are preferably designed as conductor track sections on the edge of the circuit board.
  • the back of the housing is open so that the board can be easily inserted into the housing via the open back. Moisture penetration through the open back is not to be expected, provided a suitable seal is created between the front area of the housing and the edge of the opening surrounding it.
  • a collar that runs around the housing and that is intended to lie against the front of the wall that supports it in the assembled state of the door opening sensor can contribute to this sealing. A sealing element can be clamped between the collar and this front side.
  • the board on its edge facing the front of the housing in the direction perpendicular to its surface e.g. is held immovably by clamping and has freedom of movement in the direction perpendicular to its surface at its edge carrying the plug contacts.
  • This firm clamping on the one hand and the freedom of movement on the other hand can be achieved in particular with the aid of grooves in the interior of the housing which converge towards the front of the housing and guide the circuit board.
  • This freedom of movement can compensate for any positional inaccuracy between the opening and the contacts arranged on it and intended for connection to the plug contacts of the switch.
  • a socket is provided on the inside of its wall opening, into which the housing can be inserted and which has contacts complementary to the plug contacts of the switch.
  • These contacts can in particular be accommodated in a contact piece held in a sleeve of the socket between a shoulder and a latching hook.
  • Fig. 1 shows a perspective view of a refrigerator equipped with door opening sensors according to the present invention.
  • the refrigerator has two doors 50, 51, each of which, for example, closes a normal cooling compartment and a fresh cooling compartment or a normal cooling compartment and a freezer compartment 52, 53.
  • a door opening sensor 54 is arranged on the front of the refrigerator housing facing the lower edge of the door 50 and 51, respectively.
  • the door opening sensors 54 are arranged approximately in the center on the front of the refrigerator housing, so that they have the same sensitivity regardless of which side of the housing the doors 50, 51 are attached to.
  • a magnet to be detected by the door opening sensor 54 is inserted into the door 50 or 51 at a position opposite the door opening sensor 54.
  • the door opening sensors 54 could of course also be in other locations on the front of the refrigerator housing, in particular also in openings broken in the refrigerator inner container.
  • Fig. 2 shows a section through a door opening sensor 54 in a related to the in Fig. 1 shown arrangement of the door opening sensors 54 horizontal plane.
  • Fig. 3 shows a section through the same door opening sensor along a vertical plane.
  • the cutting plane of the Fig. 3 is in Fig. 2 designated III-III, which the Fig. 2 in Fig. 3 with II-II.
  • the door opening sensor 54 is essentially constructed from three parts, a reed switch 1, a circuit board 2 on which the reed switch 1 is soldered, and a housing 3 in which the circuit board 2 is accommodated with the reed switch 1.
  • the housing 3 made in one piece from plastic has a substantially cuboid body 17 which is open at the rear and is surrounded on four side walls by a circumferential collar 8.
  • the narrow side walls 18 of the body 17 face on the inside, as in FIG Fig. 3 shown, a tapered groove 19 from the open back to the closed front of the body 17, which serves as a guide and holder for the circuit board 2.
  • the circuit board 2 is held by these grooves 19 in the area of the front side essentially without play and with freedom of movement in the area of the rear side.
  • the body 17 is extended by two flexible arms 20, which extend from the edges between one of the wide side walls 21 and the narrow side walls 18 and each carry a latching hook 24 at their free ends.
  • the arms 20 can be displaced outwards and are adapted to the length of the board 2 in such a way that the latching hooks 24 engage behind the rear edge 22 of the board 2 when its front edge 23 is the narrow front end of the grooves 19 reached. In this way, the circuit board 2 can be locked in the housing 3.
  • the shape of the latching hook 24 engaging behind the rear edge 22 of the circuit board 2 is selected in adaptation to the freedom of movement of the circuit board in the rear region of the groove 19 so that, in any position which the circuit board 2 can assume, the engagement between the Latch hook 24 and the rear edge 22 is not lost without the arm 20 being bent at the same time.
  • the circuit board 2 carries the reed switch 1 on a surface facing away from the arms 20.
  • Conductors 6 extend over the surface of the circuit board 2 from the connections of the reed switch 1 to conductor surfaces 7 on the rear edge 22 of the circuit board 2, which are wider than the conductor tracks 6 and as plug contacts for the electrical contact with the in Figs. 3 and 4 serve socket shown.
  • the narrow side walls 18 carry two on the outside in the plane of Fig. 2 compressible clasps or arches 14. As will become clear later, these serve for releasably fastening the housing 3 by latching in an opening.
  • Figs. 4th and 5 each show a section through a socket 32 mounted on an opening 30 of a wall 4 of the refrigeration device, which is provided in order to insert the housing 3 therein and to contact the reed switch 1.
  • the plastic-molded socket 32 is essentially constructed from two approximately cuboid, hollow sections, which are referred to as the plug-in section 33 and the wire feed section 34.
  • the insertion section 33 has an open front side facing the wall 4, which is surrounded by a circumferential flange 35.
  • the flange 35 is firmly glued to the inside of the wall 4.
  • the cavity of the insertion section 33 is higher and wider than the opening 30, behind which it is arranged.
  • a plurality of ribs 15 and 16 project into the interior of the cavity of the insertion section 33.
  • Two of these ribs, the ribs 16, extend over the entire depth of the insertion section 33 and their height is dimensioned such that they keep the wide side walls 21 of the housing 3 inserted into the insertion section 33 free of play or pinch them slightly.
  • the shorter ribs 15 have a length such that they do not reach the rear of the inserted housing 3, and such a height that they guide the rear edge of the board 2 between them when inserted and lead into a receiving slot 37 of a contact piece 5. As especially in Fig.
  • the contact piece 5 is held in a sleeve 40 which in a wall 39 which delimits the sections 33, 34 from one another.
  • two latching hooks 41 which are connected via flexible tongues 42 to two of the short ribs 15 and can be displaced to the side when the contact piece 5 is inserted into the sleeve 40.
  • a shoulder 43 formed in the sleeve 40 limits the mobility of the contact piece 5 in the direction of the opening 30 and thus prevents the contact piece together with the circuit board 2 from being pulled out if the door opening sensor has to be replaced.
  • Two wires 44 for contacting the reed switch 1 extend from the contact piece 5 through the wire feed section 34 to a bushing (not shown), at which they emerge from the wire feed section 34 into an insulating foam layer 13 which surrounds the socket 32 on its outer sides .
  • the feedthrough is formed by one or two cutouts in a side wall of the wire feed section 34, which adjoin a rear wall 31 which is separate from the rest of the wire feed section 34.
  • the door opening sensor is installed by first gluing the flange 35 of the socket 32 to the inside of the wall 4, surrounding the opening 30. At this time, the contact piece 5 can already be provided with connecting wires and locked in the sleeve 40 and the rear wall 31 can be attached to the wire feed section 34; the attachment of the contact piece 5 and the rear wall 31 can also only take place when the socket 32 is mounted on the wall 4.
  • the wire feed section 34 is secured against the penetration of the foam 13 when the door opening sensor is encapsulated with it.
  • the housing 3 After mounting the socket 32 on the wall 4, the housing 3 can be inserted through the opening 30 into the insertion section 33.
  • Figs. 6 and 7 show, again in sections in two mutually perpendicular levels, corresponding to levels II-II and III-III, the door opening sensor mounted on the wall 4 of the refrigerator.
  • the arches 14 compressed when opening the housing 3 through the opening 30 have returned to their original configuration, so that the housing 3 is fixed to the wall 4 by clamping between the collar 8 and the arches 14.
  • the Fig. 6 shows a between the collar 8 and the wall 4 clamped sealing ring 4; if necessary, this can be provided if there is a high risk of moisture penetrating into the insertion section 33, for example because the area of the wall 4 in which the opening 30 is located can be wetted by condensation water forming in the interior of the refrigerator.
  • the housing 3 In order to replace the door opening sensor in the event of a fault, it is sufficient to grasp the front area of the housing 3 protruding beyond the outer surface of the wall 4, e.g. with pliers and pull out of the opening 30. The circuit board 2 can then be removed from the housing 3 and replaced by bending the arms 20. Subsequently, the housing 3 only needs to be pushed back into the opening 30.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Description

Kältegeräte sind herkömmlicherweise mit einem Schalter zum Erfassen eines Öffnens oder Schließens ihrer Tür bzw. ihrer Türen ausgestattet.Refrigeration devices are conventionally equipped with a switch for detecting an opening or closing of their door or doors.

Eine bekannte Bauform sind mechanisch betätigte elektrische Schalter, die am Gehäuse des Kältegeräts in Türnähe montiert sind und mit einem Schaltnocken an der Tür zusammenwirken. Ein solcher Schalter kann z.B. in einer Frontleiste aus Metall oder Kunststoff an der Gerätevorderseite knapp oberhalb oder unterhalb einer Tür fixiert sein und über einen Durchbruch in der Frontleiste betätigt werden. Die Betätigung des Schalters erfolgt über einen mit der Tür fest verbundenen Körper. Bei diesem System ist der Schalter im Reparaturfall üblicherweise zerstörungsfrei demontierbar, und ein neuer Schalter kann an gleicher Stelle montiert werden.A known design are mechanically operated electrical switches that are mounted on the housing of the refrigerator near the door and interact with a switch cam on the door. Such a switch can e.g. be fixed in a front bar made of metal or plastic on the front of the device just above or below a door and operated via an opening in the front bar. The switch is actuated via a body that is firmly connected to the door. With this system, the switch can usually be removed non-destructively in the event of repair, and a new switch can be installed in the same place.

Ein Nachteil dieser Lösung ist die mechanische Empfindlichkeit des Schalters, insbesondere seines durch die Tür zu betätigenden, beweglichen Stößels. Dieser kann insbesondere beim Transport eines solchen Kältegerätes beschädigt werden. Wenn die Tür nicht exakt positioniert ist, z.B. weil beim Aufstellen des Geräts der Türanschlag geändert worden ist, oder weil die Tür schwer beladen ist, kann es vorkommen, dass sich der Stößel und der Schaltkörper der Tür nicht ausreichend überdecken und somit der Schalter nicht schaltet.A disadvantage of this solution is the mechanical sensitivity of the switch, in particular its movable plunger that can be actuated by the door. This can be damaged in particular when transporting such a refrigerator. If the door is not exactly positioned, e.g. Because the door stop has been changed when the device was set up, or because the door is heavily loaded, it may happen that the plunger and the switch body of the door do not overlap sufficiently and the switch therefore does not switch.

Ein weiterer Nachteil kann auftreten, wenn der Schalter unterhalb eines Kühl-/Gefrierfachs eingebaut ist, aus dem Wasser z.B. während des Abtauzyklus austreten kann. Durch die Notwendigkeit des beweglichen Stößels ist im in dem den Schalter umgebenden Gehäuse ein Spalt vorhanden, durch den eventuell Wasser ins Innere des Schalters vordringen kann und mit spannungsführenden Teilen in Kontakt gelangen kann.Another disadvantage can occur if the switch is installed below a fridge / freezer from which water e.g. can escape during the defrost cycle. Due to the necessity of the movable plunger, there is a gap in the housing surrounding the switch, through which water can possibly penetrate into the interior of the switch and come into contact with live parts.

Um den mit ungenauer Positionierung der Tür und insbesondere den mit Feuchtigkeitseinbruch zusammenhängenden Problemen zu begegnen, ist bekannt, einen magnetisch betätigten Schalter, insbesondere einen Reed-Schalter, in Kombination mit einem an der Tür befestigten Magneten in einem Türöffnungssensor einzusetzen. Ein solcher Schalter kann z.B. montiert werden, indem er im Korpus des Kältegerätes türnah eingeschäumt wird. Der Nachteil dieser Lösung liegt darin, dass ein solcher Schalter im Falle einer Störung nicht zerstörungsfrei ausgetauscht werden kann.In order to counter the problems associated with inexact positioning of the door and in particular the problems associated with moisture ingress, it is known to use a magnetically operated switch, in particular a reed switch, in combination with a magnet attached to the door in a door opening sensor. Such a switch can be installed, for example, by foaming it in the body of the refrigerator near the door. The disadvantage of this solution is that such a switch cannot be replaced without destruction in the event of a fault.

Um den Nachteil der nicht vorhandenen Zugänglichkeit des magnetisch betätigten Schalters zu beheben, ist vorgeschlagen worden, diesen auf einer Elektronikplatine anzubringen, die die Steuerelektronik des Kältegerätes trägt und in einem an der Gerätevorderseite befestigten Kunststoffgehäuse untergebracht ist. Im Reparaturfall kann durch Abnehmen des Kunststoffgehäuses, anschließendes Auslöten des defekten magnetisch gesteuerten Schalters und Einlöten eines Ersatzschalters eine Reparatur erfolgen.In order to eliminate the disadvantage of the lack of accessibility of the magnetically operated switch, it has been proposed to mount it on an electronic circuit board which carries the control electronics of the refrigeration device and is accommodated in a plastic housing attached to the front of the device. In the event of a repair, a repair can be carried out by removing the plastic housing, then unsoldering the defective magnetically controlled switch and soldering in a replacement switch.

In einer verbesserten Ausführung ist der magnetisch betätigte Schalter nicht direkt auf die Elektronikplatine gelötet, sondern auf eine Hilfsplatine, die ihrerseits mit elektrischen Leitungen und/oder einem Stecker versehen ist, um die Verbindung zur Elektronikplatine herzustellen. Dies bringt den Vorteil mit sich, dass der magnetisch betätigte Schalter im Innenraum des Kunststoffgehäuses an einer anderen Stelle platziert werden kann als die Elektronikplatine selbst. Unbefriedigend bleibt jedoch, dass auch mit dieser Ausführung der Schalter nur innerhalb des Innenraums des Gehäuses positioniert werden kann, in dem sich auch die Elektronikplatine befindet. Somit kann mit diesem Schalter nur das Öffnen und Schließen einer Tür erfasst werden, die direkt oberhalb oder unterhalb des Gehäuses angeordnet ist. Insbesondere ist bei einem mehrtürigen Kältegerät diese bekannte Lösung auf eine Tür, die dem Gehäuse der Elektronikplatine nicht benachbart ist, nicht anwendbar.In an improved version, the magnetically actuated switch is not soldered directly to the electronic board, but to an auxiliary board, which in turn is provided with electrical lines and / or a plug in order to establish the connection to the electronic board. This has the advantage that the magnetically actuated switch can be placed in a different place in the interior of the plastic housing than the electronics board itself. However, it remains unsatisfactory that even with this embodiment the switch can only be positioned within the interior of the housing which is also the electronics board. This switch can only be used to detect the opening and closing of a door that is located directly above or below the housing. In particular, in the case of a multi-door refrigerator, this known solution cannot be used on a door that is not adjacent to the housing of the electronic board.

Die Druckschrift JP 08 303945 A beschreibt einen Kühlschrank mit einem Magneten und einem auf einer Leiterplatte angebrachten Hall-Element, welches in einer einseitig offenen Aufbewahrungsbox angebracht ist.The publication JP 08 303945 A describes a refrigerator with a magnet and a Hall element mounted on a circuit board, which is attached in a storage box that is open on one side.

Die Druckschrift JP 07 318234 A beschreibt einen Kühlschrank mit einem Magneten an einem Ende eines Stützrahmens einer schubladenartigen Tür und einem magnetischen Sensor in einem geschäumten Wärmeisolator in einer Seitenwand des Kühlschranks gegenüber dem Magneten.The publication JP 07 318234 A describes a refrigerator with a magnet at one end of a support frame of a drawer-like door and a magnetic sensor in a foamed heat insulator in a side wall of the refrigerator opposite the magnet.

Die Druckschrift DE 197 20 601 C behandelt eine Vorrichtung zum Erzeugen eines Schaltsignals mit einem Reed-Kontakt.The publication DE 197 20 601 C deals with a device for generating a switching signal with a reed contact.

Die Druckschrift DE 2905698 A1 offenbart ein Kältegerät gemäß dem Oberbegriff von Anspruch 1.The publication DE 2905698 A1 discloses a refrigerator according to the preamble of claim 1.

Aufgabe der Erfindung ist, ein Kältegerät mit einem Türöffnungssensor zu schaffen, der gegen Feuchtigkeitseinfluss unempfindlich ist, der an einem Kältegerätegehäuse in weitgehend beliebiger, türnaher Stellung montierbar ist und leicht ausgetauscht werden kann.The object of the invention is to provide a refrigerator with a door opening sensor which is insensitive to the influence of moisture, which can be mounted on a refrigerator housing in a largely arbitrary position close to the door and which can be easily replaced.

Diese Aufgabe wird durch ein Kältegerät mit den Merkmalen des Anspruchs 1 gelöst. Indem dessen Schalter mit einem eigenen Gehäuse und steckbar ausgebildet ist, kann er an beliebiger Stelle des Kältegerätegehäuses montiert werden, wo eine Öffnung zur Aufnahme des Schalters geschaffen werden kann.This object is achieved by a refrigerator with the features of claim 1. Because its switch is designed with its own housing and can be plugged in, it can be mounted at any point on the refrigerator housing, where an opening can be created to accommodate the switch.

Der Schalter, vorzugsweise ein Reed-Schalter, ist auf einer in dem Gehäuse untergebrachten Platine montiert, von der ein Rand die zum Kontaktieren des Schalters benötigten Steckkontakte trägt. Vorzugsweise sind diese Steckkontakte als Leiterbahnabschnitte an dem Rand der Platine ausgebildet.The switch, preferably a reed switch, is mounted on a circuit board accommodated in the housing, an edge of which carries the plug contacts required for contacting the switch. These plug contacts are preferably designed as conductor track sections on the edge of the circuit board.

Das Gehäuse ist an seiner Rückseite offen, so dass die Platine über die offene Rückseite in das Gehäuse bequem einschiebbar ist. Ein Eindringen von Feuchtigkeit über die offene Rückseite ist nicht zu erwarten, sofern zwischen dem vorderen Bereich des Gehäuses und dem diesen umgebenden Rand der Öffnung eine geeignete Abdichtung geschaffen ist. Zu dieser Abdichtung kann insbesondere ein um das Gehäuse umlaufender Bund beitragen, der vorgesehen ist, um im montierten Zustand des Türöffnungssensors an der Vorderseite der ihn tragenden Wand anzuliegen. Zwischen dem Bund und dieser Vorderseite kann ein Dichtelement eingeklemmt sein.The back of the housing is open so that the board can be easily inserted into the housing via the open back. Moisture penetration through the open back is not to be expected, provided a suitable seal is created between the front area of the housing and the edge of the opening surrounding it. In particular, a collar that runs around the housing and that is intended to lie against the front of the wall that supports it in the assembled state of the door opening sensor can contribute to this sealing. A sealing element can be clamped between the collar and this front side.

Um die Platzierung des Türöffnungssensors in der Öffnung zu erleichtern, ist vorgesehen, dass die Platine an ihrem der Vorderseite des Gehäuses zugewandten Rand in Richtung senkrecht zu ihrer Oberfläche, z.B. durch Klemmung, unbeweglich gehalten ist und an ihrem die Steckkontakte tragenden Rand eine Bewegungsfreiheit in Richtung senkrecht zu ihrer Oberfläche aufweist. Diese feste Klemmung einerseits und die Bewegungsfreiheit andererseits kann insbesondere erreicht werden mit Hilfe von zur Gehäusevorderseite hin konvergierenden, die Platine führenden Nuten im Innern des Gehäuses. Mit dieser Bewegungsfreiheit kann eine eventuelle Positionsungenauigkeit zwischen der Öffnung und an ihr angeordneten, zum Verbinden mit den Steckkontakten des Schalters vorgesehenen Kontakten ausgeglichen werden.In order to facilitate the placement of the door opening sensor in the opening, it is provided that the board on its edge facing the front of the housing in the direction perpendicular to its surface, e.g. is held immovably by clamping and has freedom of movement in the direction perpendicular to its surface at its edge carrying the plug contacts. This firm clamping on the one hand and the freedom of movement on the other hand can be achieved in particular with the aid of grooves in the interior of the housing which converge towards the front of the housing and guide the circuit board. This freedom of movement can compensate for any positional inaccuracy between the opening and the contacts arranged on it and intended for connection to the plug contacts of the switch.

Zum Erleichtern der Montage des Gehäuses an einem Kältegerät ist eine an der Innenseite von dessen Wandöffnung montierte Steckbuchse vorgesehen, in die das Gehäuse einschiebbar ist und die zu den Steckkontakten des Schalters komplementäre Kontakte aufweist.To facilitate the assembly of the housing on a refrigerator, a socket is provided on the inside of its wall opening, into which the housing can be inserted and which has contacts complementary to the plug contacts of the switch.

Diese Kontakte können insbesondere in einem in einer Hülse der Steckbuchse zwischen einer Schulter und einem Rasthaken gehaltenen Kontaktstück untergebracht sein.These contacts can in particular be accommodated in a contact piece held in a sleeve of the socket between a shoulder and a latching hook.

Weitere Merkmale und Vorteile der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen mit Bezug auf die beigefügten Figuren. Es zeigen:

Fig. 1
eine perspektivische Ansicht eines Kältegeräts gemäß der vorliegenden Erfindung;
Figs. 2 und 3
jeweils einen Schnitt durch einen Türöffnungssensor gemäß der Erfindung in zwei zueinander senkrechten Ebenen;
Figs. 4 und 5
einen Schnitt durch eine Wand des Kältegeräts mit einer an dieser Wand montierten Steckbuchse, jeweils in zu denen der Figs. 2 und 3 analogen Schnittebene; und
Figs. 6 und 7
Schnitte durch den in der Wand montierten Türöffnungssensor, entlang der gleichen Schnittebenen.
Further features and advantages of the present invention result from the following description of exemplary embodiments with reference to the attached figures. Show it:
Fig. 1
a perspective view of a refrigerator according to the present invention;
Figs. 2 and 3
in each case a section through a door opening sensor according to the invention in two mutually perpendicular planes;
Figs. 4 and 5
a section through a wall of the refrigerator with a socket mounted on this wall, each in which the Figs. 2 and 3 analog cutting plane; and
Figs. 6 and 7
Cuts through the wall-mounted door opening sensor, along the same cutting planes.

Fig. 1 zeigt eine perspektivische Ansicht eines mit Türöffnungssensoren gemäß der vorliegenden Erfindung ausgestatteten Kältegeräts. Das Kältegerät hat zwei Türen 50, 51, die jeweils z.B. ein Normalkühlfach und ein Frischkühlfach oder ein Normalkühlfach und ein Gefrierfach 52, 53 verschließen. Unterhalb jedes der Fächer 52, 53 ist ein Türöffnungssensor 54 an der Vorderseite des Kältegerätegehäuses dem unteren Rand der Tür 50 bzw. 51 zugewandt, angeordnet. Die Türöffnungssensoren 54 sind in etwa mittig an der Vorderseite des Kältegerätegehäuses angeordnet, so dass sie unabhängig davon, auf welche Seite des Gehäuses die Türen 50, 51 angeschlagen sind, gleiche Empfindlichkeit aufweisen. Fig. 1 shows a perspective view of a refrigerator equipped with door opening sensors according to the present invention. The refrigerator has two doors 50, 51, each of which, for example, closes a normal cooling compartment and a fresh cooling compartment or a normal cooling compartment and a freezer compartment 52, 53. Below each of the compartments 52, 53, a door opening sensor 54 is arranged on the front of the refrigerator housing facing the lower edge of the door 50 and 51, respectively. The door opening sensors 54 are arranged approximately in the center on the front of the refrigerator housing, so that they have the same sensitivity regardless of which side of the housing the doors 50, 51 are attached to.

Ein jeweils durch den Türöffnungssensor 54 zu erfassender Magnet ist an einer dem Türöffnungssensor 54 gegenüberliegenden Position in die Tür 50 bzw. 51 eingelassen. Die Türöffnungssensoren 54 könnten selbstverständlich auch an anderen Orten an der Vorderseite des Kältegerätegehäuses angeordnet sein, insbesondere auch in in den Kältegeräte-Innenbehälter gebrochenen Öffnungen.A magnet to be detected by the door opening sensor 54 is inserted into the door 50 or 51 at a position opposite the door opening sensor 54. The door opening sensors 54 could of course also be in other locations on the front of the refrigerator housing, in particular also in openings broken in the refrigerator inner container.

Fig. 2 zeigt einen Schnitt durch einen Türöffnungssensor 54 in einer bezogen auf die in Fig. 1 gezeigte Anordnung der Türöffnungssensoren 54 horizontalen Ebene. Fig. 2 shows a section through a door opening sensor 54 in a related to the in Fig. 1 shown arrangement of the door opening sensors 54 horizontal plane.

Fig. 3 zeigt einen Schnitt durch den gleichen Türöffnungssensor entlang einer vertikalen Ebene. Die Schnittebene der Fig. 3 ist in Fig. 2 mit III-III bezeichnet, die der Fig. 2 in Fig. 3 mit II-II. Fig. 3 shows a section through the same door opening sensor along a vertical plane. The cutting plane of the Fig. 3 is in Fig. 2 designated III-III, which the Fig. 2 in Fig. 3 with II-II.

Der Türöffnungssensor 54 ist im wesentlichen aufgebaut aus drei Teilen, einem Reed-Schalter 1, einer Platine 2, auf der der Reed-Schalter 1 verlötet ist, und einem Gehäuse 3, in dem die Platine 2 mit dem Reed-Schalter 1 aufgenommen ist.The door opening sensor 54 is essentially constructed from three parts, a reed switch 1, a circuit board 2 on which the reed switch 1 is soldered, and a housing 3 in which the circuit board 2 is accommodated with the reed switch 1.

Das aus Kunststoff einteilig gefertigte Gehäuse 3 hat einen im wesentlichen quaderförmigen Körper 17, der an der Rückseite offen ist und an vier Seitenwänden von einem umlaufenden Bund 8 umgeben ist. Die schmalen Seitenwände 18 des Körpers 17 weisen an ihrer Innenseite, wie in Fig. 3 gezeigt, eine von der offenen Rückseite zur geschlossenen Vorderseite des Körpers 17 sich verjüngende Nut 19 auf, die als Führung und Halterung für die Platine 2 dient. Die Platine 2 ist durch diese Nuten 19 im Bereich der Vorderseite im wesentlichen spielfrei und mit einer Bewegungsfreiheit im Bereich der Rückseite gehalten.The housing 3 made in one piece from plastic has a substantially cuboid body 17 which is open at the rear and is surrounded on four side walls by a circumferential collar 8. The narrow side walls 18 of the body 17 face on the inside, as in FIG Fig. 3 shown, a tapered groove 19 from the open back to the closed front of the body 17, which serves as a guide and holder for the circuit board 2. The circuit board 2 is held by these grooves 19 in the area of the front side essentially without play and with freedom of movement in the area of the rear side.

An der offenen Rückseite ist der Körper 17 durch zwei flexible Arme 20 verlängert, die von den Kanten zwischen einer der breiten Seitenwände 21 und den schmalen Seitenwänden 18 ausgehen und an ihren freien Enden jeweils einen Rasthaken 24 tragen. Die Arme 20 sind beim Einschieben der Platine 2 in die Nut 19 nach außen verdrängbar und so an die Länge der Platine 2 angepasst, dass die Rasthaken 24 hinter der hinteren Kante 22 der Platine 2 eingreifen, wenn deren vordere Kante 23 das schmale Vorderende der Nuten 19 erreicht. Auf diese Weise ist die Platine 2 im Gehäuse 3 verrastbar.On the open back, the body 17 is extended by two flexible arms 20, which extend from the edges between one of the wide side walls 21 and the narrow side walls 18 and each carry a latching hook 24 at their free ends. When inserting the board 2 into the groove 19, the arms 20 can be displaced outwards and are adapted to the length of the board 2 in such a way that the latching hooks 24 engage behind the rear edge 22 of the board 2 when its front edge 23 is the narrow front end of the grooves 19 reached. In this way, the circuit board 2 can be locked in the housing 3.

Die Form des hinter die hintere Kante 22 der Platine 2 eingreifenden Rasthakens 24 ist in Anpassung an die Bewegungsfreiheit der Platine im hinteren Bereich der Nut 19 so gewählt, dass in jeder Stellung, die die Platine 2 einnehmen kann, der Eingriff zwischen dem Rasthaken 24 und der hinteren Kante 22 nicht verloren geht, ohne dass der Arm 20 gleichzeitig gebogen wird.The shape of the latching hook 24 engaging behind the rear edge 22 of the circuit board 2 is selected in adaptation to the freedom of movement of the circuit board in the rear region of the groove 19 so that, in any position which the circuit board 2 can assume, the engagement between the Latch hook 24 and the rear edge 22 is not lost without the arm 20 being bent at the same time.

Die Platine 2 trägt den Reed-Schalter 1 an einer von den Armen 20 abgewandten Oberfläche. Leiterbahnen 6 erstrecken sich über die Oberfläche der Platine 2 von den Anschlüssen des Reed-Schalters 1 zu Leiterflächen 7 an der hinteren Kante 22 der Platine 2, die breiter als die Leiterbahnen 6 sind und als Steckkontakte für den elektrischen Kontakt mit der in Figs. 3 und 4 dargestellten Steckbuchse dienen.The circuit board 2 carries the reed switch 1 on a surface facing away from the arms 20. Conductors 6 extend over the surface of the circuit board 2 from the connections of the reed switch 1 to conductor surfaces 7 on the rear edge 22 of the circuit board 2, which are wider than the conductor tracks 6 and as plug contacts for the electrical contact with the in Figs. 3 and 4 serve socket shown.

Die schmalen Seitenwände 18 tragen an ihren Außenseiten zwei in der Ebene der Fig. 2 zusammendrückbare Spangen oder Bögen 14. Diese dienen, wie später noch deutlich wird, zur lösbaren Befestigung des Gehäuses 3 durch Verrasten in einer Öffnung.The narrow side walls 18 carry two on the outside in the plane of Fig. 2 compressible clasps or arches 14. As will become clear later, these serve for releasably fastening the housing 3 by latching in an opening.

Die Figs. 4 und 5 zeigen jeweils einen Schnitt durch eine an einer Öffnung 30 einer Wand 4 des Kältegerätes montierten Steckbuchse 32, die vorgesehen ist, um das Gehäuse 3 darin einzuschieben und den Reed-Schalter 1 zu kontaktieren.The Figs. 4th and 5 each show a section through a socket 32 mounted on an opening 30 of a wall 4 of the refrigeration device, which is provided in order to insert the housing 3 therein and to contact the reed switch 1.

Die aus Kunststoff geformte Steckbuchse 32 ist im wesentlichen aufgebaut aus zwei in etwa quaderförmigen, hohlen Abschnitten, die als Einsteckabschnitt 33 bzw. Drahtzuführungsabschnitt 34 bezeichnet. Der Einsteckabschnitt 33 hat eine der Wand 4 zugewandte, offene Vorderseite, die von einem umlaufenden Flansch 35 umgeben ist. Der Flansch 35 ist an der Innenseite der Wand 4 fest verklebt. Der Hohlraum des Einsteckabschnitts 33 ist höher und breiter als die Öffnung 30, hinter der er angeordnet ist.The plastic-molded socket 32 is essentially constructed from two approximately cuboid, hollow sections, which are referred to as the plug-in section 33 and the wire feed section 34. The insertion section 33 has an open front side facing the wall 4, which is surrounded by a circumferential flange 35. The flange 35 is firmly glued to the inside of the wall 4. The cavity of the insertion section 33 is higher and wider than the opening 30, behind which it is arranged.

Die breiten Seitenwände 36 des Einsteckabschnitts 33, von denen eine in Fig. 4 in Draufsicht zu sehen ist, tragen eine Mehrzahl von ins Innere des Hohlraums des Einsteckabschnitts 33 vorspringenden Rippen 15 bzw. 16. Zwei dieser Rippen, die Rippen 16, erstrecken sich über die gesamte Tiefe des Einsteckabschnitts 33, und ihre Höhe ist so bemessen, dass sie die breiten Seitenwände 21 des in den Einsteckabschnitt 33 eingeführten Gehäuses 3 spielfrei halten oder geringfügig einklemmen. Die kürzeren Rippen 15 haben eine solche Länge, dass sie die Rückseite des eingeführten Gehäuses 3 nicht erreichen, und eine solche Höhe, dass sie die hintere Kante der Platine 2 beim Einstecken zwischen sich führen und in einen Aufnahmeschlitz 37 eines Kontaktstücks 5 leiten. Wie insbesondere in Fig. 5 zu sehen, ist das Kontaktstück 5 in einer Hülse 40 gehalten, die in einer die Abschnitte 33, 34 voneinander abgrenzenden Wand 39 ausgebildet ist. Zur Fixierung des Kontaktstücks 5 in Einsteckrichtung des Gehäuses 3 dienen einerseits zwei Rasthaken 41, die über flexible Zungen 42 mit zwei der kurzen Rippen 15 verbunden sind und bei einem Einschieben des Kontaktstücks 5 in die Hülse 40 zur Seite verdrängbar sind. Andererseits begrenzt eine in der Hülse 40 gebildete Schulter 43 die Beweglichkeit des Kontaktstücks 5 in Richtung der Öffnung 30 und verhindert so, dass das Kontaktstück mitsamt der Platine 2 herausgezogen wird, falls der Türöffnungssensor ausgetauscht werden muss.The wide side walls 36 of the male portion 33, one of which is in Fig. 4 Seen in plan view, a plurality of ribs 15 and 16 project into the interior of the cavity of the insertion section 33. Two of these ribs, the ribs 16, extend over the entire depth of the insertion section 33 and their height is dimensioned such that they keep the wide side walls 21 of the housing 3 inserted into the insertion section 33 free of play or pinch them slightly. The shorter ribs 15 have a length such that they do not reach the rear of the inserted housing 3, and such a height that they guide the rear edge of the board 2 between them when inserted and lead into a receiving slot 37 of a contact piece 5. As especially in Fig. 5 can be seen, the contact piece 5 is held in a sleeve 40 which in a wall 39 which delimits the sections 33, 34 from one another. To fix the contact piece 5 in the direction of insertion of the housing 3 are used on the one hand two latching hooks 41, which are connected via flexible tongues 42 to two of the short ribs 15 and can be displaced to the side when the contact piece 5 is inserted into the sleeve 40. On the other hand, a shoulder 43 formed in the sleeve 40 limits the mobility of the contact piece 5 in the direction of the opening 30 and thus prevents the contact piece together with the circuit board 2 from being pulled out if the door opening sensor has to be replaced.

Zwei Drähte 44 zur Kontaktierung des Reed-Schalters 1 erstrecken sich vom Kontaktstück 5 aus durch den Drahtzuführungsabschnitt 34 bis zu einer (nicht dargestellen) Durchführung, an der sie aus dem Drahtzuführungsabschnitt 34 in eine Isolierschaumschicht 13 austreten, die die Steckbuchse 32 an ihren Außenseiten umgibt. Die Durchführung ist gebildet durch ein oder zwei Ausschnitte in einer Seitenwand des Drahtzuführungsabschnitts 34, die an eine vom Rest des Drahtzuführungsabschnitts 34 getrennte Rückwand 31 angrenzen.Two wires 44 for contacting the reed switch 1 extend from the contact piece 5 through the wire feed section 34 to a bushing (not shown), at which they emerge from the wire feed section 34 into an insulating foam layer 13 which surrounds the socket 32 on its outer sides . The feedthrough is formed by one or two cutouts in a side wall of the wire feed section 34, which adjoin a rear wall 31 which is separate from the rest of the wire feed section 34.

Die Montage des Türöffnungssensors erfolgt, indem an der Innenseite der Wand 4, die Öffnung 30 umgebend, zunächst der Flansch 35 der Steckbuchse 32 angeklebt wird. Zu diesem Zeitpunkt kann das Kontaktstück 5 bereits mit Anschlussdrähten versehen und in der Hülse 40 verrastet und die Rückwand 31 am Drahtzuführungsabschnitt 34 angebracht sein; die Anbringung des Kontaktstücks 5 und der Rückwand 31 können aber auch erst erfolgen, wenn die Steckbuchse 32 an der Wand 4 montiert ist.The door opening sensor is installed by first gluing the flange 35 of the socket 32 to the inside of the wall 4, surrounding the opening 30. At this time, the contact piece 5 can already be provided with connecting wires and locked in the sleeve 40 and the rear wall 31 can be attached to the wire feed section 34; the attachment of the contact piece 5 and the rear wall 31 can also only take place when the socket 32 is mounted on the wall 4.

Durch die Rückwand 31 ist der Drahtzuführungsabschnitt 34 gesichert gegen das Eindringen des Schaums 13, wenn der Türöffnungssensor damit umspritzt wird.Through the rear wall 31, the wire feed section 34 is secured against the penetration of the foam 13 when the door opening sensor is encapsulated with it.

Nach Montage der Steckbuchse 32 an der Wand 4 kann das Gehäuse 3 durch die Öffnung 30 hindurch in den Einsteckabschnitt 33 eingeführt werden.After mounting the socket 32 on the wall 4, the housing 3 can be inserted through the opening 30 into the insertion section 33.

Figs. 6 und 7 zeigen, wiederum in Schnitten in zwei zueinander senkrechten Ebenen, entsprechend den Ebenen II-II und III-III, den an der Wand 4 des Kältegeräts montierten Türöffnungssensor. Die beim Einschieben des Gehäuses 3 durch die Öffnung 30 zusammengedrückten Bögen 14 sind wieder in ihre ursprüngliche Konfiguration zurückgekehrt, so dass das Gehäuse 3 an der Wand 4 durch Klemmung zwischen dem Bund 8 und den Bögen 14 fixiert ist. Figs. 6 and 7 show, again in sections in two mutually perpendicular levels, corresponding to levels II-II and III-III, the door opening sensor mounted on the wall 4 of the refrigerator. The arches 14 compressed when opening the housing 3 through the opening 30 have returned to their original configuration, so that the housing 3 is fixed to the wall 4 by clamping between the collar 8 and the arches 14.

Die Fig. 6 zeigt einen zwischen dem Bund 8 und der Wand 4 eingeklemmten Dichtring 4; dieser kann bei Bedarf vorgesehen werden, wenn eine hohe Gefahr des Eindringens von Feuchtigkeit in den Einsteckabschnitt 33 besteht, z.B. weil der Bereich der Wand 4, in dem sich die Öffnung 30 befindet, von sich im Innern des Kältegeräts bildenden Tauwasser benetzt werden kann.The Fig. 6 shows a between the collar 8 and the wall 4 clamped sealing ring 4; if necessary, this can be provided if there is a high risk of moisture penetrating into the insertion section 33, for example because the area of the wall 4 in which the opening 30 is located can be wetted by condensation water forming in the interior of the refrigerator.

Um im Falle einer Störung den Türöffnungssensor auszutauschen, genügt es, den über die Außenfläche der Wand 4 vorstehenden vorderen Bereich des Gehäuses 3 zu fassen, z.B. mit einer Zange, und aus der Öffnung 30 herauszuziehen. Anschließend kann durch Biegen der Arme 20 die Platine 2 aus dem Gehäuse 3 entnommen und ausgetauscht werden. Anschließend braucht das Gehäuse 3 nur noch in die Öffnung 30 wieder eingeschoben zu werden.In order to replace the door opening sensor in the event of a fault, it is sufficient to grasp the front area of the housing 3 protruding beyond the outer surface of the wall 4, e.g. with pliers and pull out of the opening 30. The circuit board 2 can then be removed from the housing 3 and replaced by bending the arms 20. Subsequently, the housing 3 only needs to be pushed back into the opening 30.

Claims (10)

  1. Refrigeration appliance with a door opening sensor (54) for a refrigeration appliance, wherein the door opening sensor (20) is fastened in an opening (30) cut into a wall (4) of the housing of the refrigeration appliance, wherein the door opening sensor (54) has a contactlessly operated switch (1) and a separate pluggable housing (3) which surrounds the switch (1), wherein plug contacts for electrically contacting the switch (1) are accessible on one side of the housing (3), characterised in that the housing (3) is equipped with releasable fastening means (25, 8) for fastening in the opening (30), wherein the switch (1) is arranged on a board (2), and wherein an edge (22) of the board (2) carries the plug contacts, wherein the housing (3) is open at a rear side and the board (2) can be inserted into the housing (3) via the open rear side, wherein a plug socket (32) is installed on an inner side of the opening (30) with contacts which are complementary to the plug contacts of the switch (1) and into which the housing (3) can be inserted.
  2. Refrigeration appliance according to claim 1, characterised in that the switch (1) is a magnetically operated switch, in particular a reed switch.
  3. Refrigeration appliance according to claim 1 or 2, characterised in that the board (2) is retained on its edge (23) facing towards the front side of the housing (3) such that it cannot be moved in the direction perpendicular to its surface and has freedom of movement in the direction perpendicular to its surface on its edge (22) carrying the plug contacts.
  4. Refrigeration appliance according to claim 3, characterised in that the housing (3) has grooves (19) in the interior which are tapered towards the front side for guiding the board (2).
  5. Refrigeration appliance according to one of the preceding claims, characterised in that the plug contacts are conductive surfaces (8) on the edge (22) of the board (2).
  6. Refrigeration appliance according to one of the preceding claims, characterised in that the housing (3) has a circumferential collar (8).
  7. Refrigeration appliance according to one of the preceding claims, characterised in that a contact piece (5) having the complementary contacts is retained in a sleeve (40) of the plug socket (32) between a shoulder (43) and a latching hook (41).
  8. Refrigeration appliance according to one of the preceding claims, where this refers back to claim 6, characterised in that the collar (8) abuts an outer side of the wall (4).
  9. Refrigeration appliance according to one of claims 1 to 7, where this refers back to claim 6, characterised in that a sealing element (9) is clamped between the collar (8) and an outer side of the wall (4).
  10. Refrigeration appliance according to one of the preceding claims, characterised in that the housing (3) of the door opening sensor (20) has a cross-section with four side walls (18, 21), that two opposing walls (21) of these side walls are retained between guide surfaces (15) of the plug socket (32) and that the other two opposing side walls (18) carry the releasable fastening means (25).
EP03742507.1A 2002-02-25 2003-02-04 Refrigeration device equipped with a door sensor Expired - Lifetime EP1481210B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10208057A DE10208057A1 (en) 2002-02-25 2002-02-25 Door opening sensor and refrigeration device equipped with it
DE10208057 2002-02-25
PCT/EP2003/001087 WO2003071209A1 (en) 2002-02-25 2003-02-04 Open-door sensor and a refrigeration device equipped with the same

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EP1481210A1 EP1481210A1 (en) 2004-12-01
EP1481210B1 true EP1481210B1 (en) 2020-05-20

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Application Number Title Priority Date Filing Date
EP03742507.1A Expired - Lifetime EP1481210B1 (en) 2002-02-25 2003-02-04 Refrigeration device equipped with a door sensor

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US (1) US7232967B2 (en)
EP (1) EP1481210B1 (en)
CN (1) CN100523683C (en)
DE (1) DE10208057A1 (en)
PL (1) PL201648B1 (en)
RU (1) RU2317496C2 (en)
WO (1) WO2003071209A1 (en)

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Publication number Publication date
RU2317496C2 (en) 2008-02-20
DE10208057A1 (en) 2003-09-04
PL370683A1 (en) 2005-05-30
WO2003071209A1 (en) 2003-08-28
US20050029080A1 (en) 2005-02-10
RU2004123969A (en) 2006-01-27
US7232967B2 (en) 2007-06-19
EP1481210A1 (en) 2004-12-01
PL201648B1 (en) 2009-04-30
CN1639528A (en) 2005-07-13
CN100523683C (en) 2009-08-05

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