EP3303930B1 - Haushaltsgerät mit einer tür - Google Patents

Haushaltsgerät mit einer tür Download PDF

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Publication number
EP3303930B1
EP3303930B1 EP16725405.1A EP16725405A EP3303930B1 EP 3303930 B1 EP3303930 B1 EP 3303930B1 EP 16725405 A EP16725405 A EP 16725405A EP 3303930 B1 EP3303930 B1 EP 3303930B1
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EP
European Patent Office
Prior art keywords
door
contact
electrical
coupling means
connector
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
EP16725405.1A
Other languages
English (en)
French (fr)
Other versions
EP3303930A1 (de
Inventor
Branko Ivanovic
Rudolf Schmidt
Dietmar Hildner
Christoph Luckhardt
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.)
Electrolux Appliances AB
Original Assignee
Electrolux Appliances AB
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 Electrolux Appliances AB filed Critical Electrolux Appliances AB
Priority claimed from PCT/EP2016/060716 external-priority patent/WO2016188765A1/en
Publication of EP3303930A1 publication Critical patent/EP3303930A1/de
Application granted granted Critical
Publication of EP3303930B1 publication Critical patent/EP3303930B1/de
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Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/02—Doors specially adapted for stoves or ranges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/008—Illumination for oven cavities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
    • F24C7/085—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination on baking ovens
    • 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
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/22—Cleaning means for refrigerating devices
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/40—Refrigerating devices characterised by electrical wiring

Definitions

  • the present invention relates to the field of household appliances. More specifically, the present invention relates to a household or kitchen appliance comprising a door for closing a cavity of the appliance, the door comprising an electrical component and coupling means for providing an electrical coupling between said electrical component and a further electrical component comprised within a chassis of the household appliance.
  • Household or kitchen appliances comprising a door with an electrical component are known in prior art.
  • cable connections are used for providing electrical power from a power supply included in the base body or chassis of the household appliance to the electrical component included in the door.
  • a big disadvantage of cable connections is that the door cannot be disassembled for a cleaning purpose and assembling/disassembling of such door is complicated due to cable connection. Furthermore, during door opening and closing cycle, the cable connections could be broken leading to a loss of power and / or data connection between the door and body.
  • German Patent Application DE 10 2007 015 237 A1 discloses a household appliance comprising an electrical contact unit for enabling an electrical connection between a supply unit included in the base body /chassis of the household appliance and lighting means included in the oven door.
  • Document DE 10 2007 057 767 A1 discloses a household appliance comprising a door for closing an opening of a cavity.
  • the door comprises contact means for providing an electrical connection for an electrical load.
  • document DE 103 41 330 A1 discloses a household appliance.
  • the household appliance comprises a door with a door contact which provides an electrical connection towards an electrical load.
  • document DE 10 2005 045 367 A1 discloses illumination means for illuminating the cavity of an oven.
  • US 2010 0154172 A1 discloses a household appliance with a Consumer Electronic Device located at a door and connected with a proximity interface. CED and proximity interface being located at a door of a stove. The document further discloses an electrical service connected to a proximity device. Electrical service and proximity device are located at the chassis of the stove. Finally, document US 2009/0039068 A1 discloses an electric oven with an oven door and an electric current conduction system comprising a pair of conductors interacting with each other in order to provide an electric coupling between the oven door and the oven base body.
  • the invention relates to a household or kitchen appliance comprising a cavity included in a chassis and a door for closing said cavity
  • the door comprises a first electrical component, said first electrical component being releasably electrically coupled with a second electrical component comprised within the chassis of the household or kitchen appliance by first coupling means in a closed state of the door.
  • Said first coupling means comprise a first contact section arranged at the door.
  • Said first contact section interacts with a corresponding second contact section arranged at the chassis, wherein said first contact section is configured such that in the closed state of the door an electrical contact is established between said first and second contact sections and said electrical contact is opened/interrupted when opening the door.
  • the first contact section is arranged at a removable door portion and second coupling means are provided at the door for releasably electrically coupling the first contact section with the first electrical component.
  • Said second coupling means may provide a detachable electrical connection between the first contact section and the first electrical component.
  • the main advantage of providing the first contact section at the removable door portion and coupling said first contact section with the first electrical component via second coupling means is that the door portion can be easily removed by a user without taking care about the electrical connection which is established via said removable door portion.
  • the removable door portion may be adapted to be removed from the door without using any tools, e.g. by a manually operable quick-lock mechanism or snap mechanism. So, in other words, the removable door portion may be adapted to be detachable from the door and re-attachable at the door.
  • the removable door portion is a door cover element which is adapted to provide an opening at the door after removal, said opening enabling a further disassembling of door elements, e.g. one or more door glasses.
  • the second coupling means comprise a third and a fourth contact section, said third contact section being arranged at the removable door portion and the fourth contact section being arranged at a structural element of the door.
  • the third contact section may be of pad connector type and the fourth contact section may comprise an electrical connector of spring connector type (e.g. spring loaded contact, compression connector, spiral connector etc.). Also a vice versa arrangement may be possible.
  • spring connector type e.g. spring loaded contact, compression connector, spiral connector etc.
  • the third and fourth contact sections are adapted and arranged to each other such that an electrical contact is established between the third and fourth contact section when the removable door portion is assembled at the door and the electrical contact is open when the removable door portion is disassembled.
  • the second coupling means provide a detachable, separable electrical connection which is established by assembling the removable door portion at the structural element of the door and detached by removing said door portion.
  • the first electrical component comprises an electrical sensor or an electrical driven component and the second electrical component comprises a power board or a control unit of the household or kitchen appliance.
  • the transmission of electrical power as well as the transmission of electrical control information may be provided.
  • At least one of the first and second contact sections and the third and fourth contact sections form a pair of matching contact sections that comprises an electrical connector of compression type or sliding type.
  • the first and second contact sections comprise an electrical connector of compression type and/or the third and fourth contact sections comprise a connector of sliding type.
  • at least one contact section of the second coupling means may be a spring-loaded contact.
  • the first contact section is arranged close to an upper edge of the door, specifically close to one of the two upper corners of the door.
  • at least one of the first and second electric component is comprised in an upper region of the door or the chassis, in particular, wherein the door is pivotally connected to the chassis of the household or kitchen appliance about a horizontal axis at its lower edge region or about a vertical axis at one of its lateral edge regions.
  • said upper edge/ upper corner region may be the coldest door portion, i.e. the heat impact to the first electrical coupling means is reduced.
  • the first coupling means in particular the first and second contact sections comprise at least one connector of compression type, namely a spring-loaded connector, compression connector and/or spiral connector.
  • Said types of connectors provide a reliable electrical contact via the interface between the chassis and the door in the closed state of said door.
  • said first coupling means may be designed for a supply voltage up to 50V AC/DC.
  • the one of the first and second contact sections of the first coupling means comprises a fixed electrically conductive contact area and its matching partner (the further contact section interacting with said contact section) comprises a movable, spring-loaded, electrically conductive contact area.
  • Said fixed electrically conductive contact areas may be of pad connector type and the spring-loaded contact areas may be pressed against said fixed electrically conductive contact areas due to spring forces applied to said movable contact areas in the closed state of the door.
  • the third and fourth contact sections of the second coupling comprise at least one connector of compression type, in particular a spring-loaded connector, a compression connector or a spiral connector.
  • the third and fourth contact sections of the second coupling means both comprise matching fixed electrically conductive contact areas that are adapted to be brought into electrical contact by a movement, in particular by a sliding movement, when the removable door portion is assembled at the door.
  • a technically simple assembling of the removable door portion is possible during which a highly conductive electrical coupling between the third and fourth coupling section is obtained.
  • the door comprises at least one inner glass pane, said inner glass pane being removably mounted at/or within the door, wherein the inner glass pane comprises an upper edge which may be covered by said removable door portion in the mounted state of the inner glass pane.
  • the removable door portion is detachable for disassembling the inner glass pane.
  • the removable door portion is arranged at the upper edge of the door.
  • the removable door portion may be arranged adjacent to or on an upper edge of a front glass pane of the door. Said position is advantageous because the glass pane can be pulled out upwardly.
  • the removable door portion may encompass the one or more glass panes at least at an upper edge in the assembled state. Thereby, the one or more glass panes are secured against movements by means of said removable door portion.
  • the door comprises a front glass pane, two door columns fixed at opposite sides in the lateral regions of the front glass pane on the cavity-facing side thereof and at least one inner glass pane that can be attached to the two door columns, wherein the removable door portion is removably connected, in particular completely removably connected to the two door columns. Due to the detachable second electrical coupling means, the door portion can be completely removed without any remaining cable connections between the door and the removable door element.
  • the first and/or second coupling means comprise at least one plunger and at least one contact sleeve providing a cavity for receiving the plunger, wherein the plunger comprises a conical or tapered free end which is received in the cavity of the contact sleeve.
  • the first and/or second coupling means comprise at least one plunger and at least one contact strip.
  • the plunger is spring-loaded.
  • the plunger is pressed into the cavity of the contact sleeve by means of said spring forces thereby further enhancing the electrical contact.
  • At least one contact surface of the first and/or second coupling means specifically, the contact surfaces of the first, second, third and fourth contact sections are plated by a highly conductive material, e.g. gold (AU), silver (Ag), copper (CU), nickel (Ni), rhodium (Rh) or platinum (Pt).
  • a highly conductive material e.g. gold (AU), silver (Ag), copper (CU), nickel (Ni), rhodium (Rh) or platinum (Pt).
  • the spring providing a spring-loading of the first and/or second coupling means is plated by a highly conductive material, e.g. gold (AU), silver (Ag), copper (CU), nickel (Ni), rhodium (Rh) or platinum (Pt).
  • a highly conductive material e.g. gold (AU), silver (Ag), copper (CU), nickel (Ni), rhodium (Rh) or platinum (Pt).
  • At least one of the contact sections is at least partially integrated in a housing, in particular in a plastic housing made of Polybutylene terephthalate (PBT), liquid crystal polymer (LCP) or Polyphthalamide (PPA) including glass fibres (HTN), wherein said housing is mounted at the chassis or the door, in particular mounted by screws or a clip mechanism.
  • a plastic housing made of Polybutylene terephthalate (PBT), liquid crystal polymer (LCP) or Polyphthalamide (PPA) including glass fibres (HTN)
  • the appliance is an oven for preparing food.
  • Fig. 1 shows a schematic diagram of a household or kitchen appliance 1, according to the present embodiment constituted by a baking oven.
  • the household or kitchen appliance 1 comprises a chassis 2, in the following also referred to as base body of the household or kitchen appliance 1.
  • the chassis 2 comprises a cavity 3 which - in case of a baking oven - is adapted to receive the food to be cooked and/or baked.
  • the household or kitchen appliance 1 further comprises a door 10. In case of an oven, the door 10 may be adapted to be opened in order to place the food into the cavity 2 and closed in order to obtain a closed cavity 2 for performing the cooking or baking process.
  • the door 10 is pivotally mounted at the chassis 2 by means of one or more hinges.
  • the door 10 may be a flip-down door, i.e. a door 10 being adapted to be pivoted about a horizontal axis at its lower edge.
  • Said hinges may be adapted such that the door 10 can be manually disassembled from the chassis 2 without using any tools.
  • the hinges or the door 10 itself may comprise lever portions, said lever portions being adapted to be moved or shifted in order to remove the door from the chassis 2.
  • the door 10 comprises one or more structural elements which may ensure the mechanical stability of the door 10. Said one or more structural elements may also be used for pivotally mounting the door 10 at the chassis 2.
  • the structural elements may comprise a pair of door columns 13 which may be arranged at opposite lateral sides of the door 10.
  • the structural element may be a door frame which at least partially borders the door 10 circumferentially.
  • the door 10 may further comprise a glass pane 12 or glass portion which is constituted by a transparent glass in order to enable a user to look into the cavity 2 without opening the door 10.
  • Said glass pane 12 may be an inner glass pane.
  • the door 10 further comprises a first electrical component (not explicitly shown in the figures).
  • the first electrical component may be included within the door 10 or may be attached to said door 10.
  • the first electrical component may comprise lighting means for providing an optical user interface at the oven door or for illuminating the cavity 3, may be a user interface for controlling the household appliance or a display for providing information to the user of the household appliance a.
  • the first electrical component may be any electrical entity comprised at or within the door 10 which needs to be electrically coupled with a further electrical entity comprised within the chassis 2 of the household appliance 1. Said electrically coupling may be used for providing electrical power to said first electrical component or for providing control information to said first electrical component.
  • a second electrical component may be provided (not explicitly shown in the figures). Said second electrical component may interact with the first electrical component included in the door 10. In order to enable said interaction between the first and second electrical component, an electrical connection between the first and the second electrical component is required.
  • the second electrical component may be a power supply unit being adapted to provide electrical power to the first electrical component.
  • the second electrical component may be a control unit adapted to provide control information to the first electrical component and/or adapted to receive information from the first electrical component.
  • the second electrical component may be any entity which is adapted to interact with the first electrical component wherein an electrical connection between the first and second electrical component is required for said interaction. Said electrical connection has to be provided via the interface between the chassis 2 of the household appliance 1 and the door 10 because the first electrical component is comprised at or within the door 10 whereas the second electrical component is included in the chassis 2.
  • first coupling means 20 are provided.
  • Said first coupling means 20 comprise a first contact section 21 and a second contact section 22.
  • the first contact section 21 may be arranged at the door 10 and the second contact section 22 may be arranged at the chassis 2 of the household appliance 1.
  • the first coupling means 20 may be arranged in a region of the household appliance 1 which is close to the first and/or second electrical component which are coupled with each other via said first coupling means 20.
  • the first coupling means 20 may be placed in an area, at which the heat impact to said first coupling means 20 is minimized.
  • the first contact section 21 may be placed at or close to the coldest area of the door 10. Therefore, the first coupling means 20 may be arranged at an upper edge 10.1 of the door 10, specifically, the first coupling means may be arranged at one of the upper corners 10.2 of the door 10. At said positions, the heat impact to the first coupling means 20 is minimized (which is specifically advantageous in case of a pyrolyse oven) and the distance between the first and a second electrical components is minimized thereby reducing the necessary wire length.
  • the first coupling means 20 may comprise one or more spring-loaded connectors, compression connectors and/or spiral connectors.
  • the first contact section 21 comprises electrical pad connectors (i.e. said electrical pad connectors are located at the door side) whereas the second contact section 22 may comprise spring-loaded connectors (SLC) or contacts, compression connectors, spiral connectors and/or stripes. Also a vice versa arrangement is possible.
  • SLC spring-loaded connectors
  • the spring-loaded connector may be, for example, a so-called POGO pin connector comprising a spring-loaded POGO pin which is adapted to perform an axial movement for establishing the electrical connection.
  • the spring-loaded POGO pin may be at least partially inserted in a sleeve when closing the door 10.
  • spring-loaded contacts are made of a contact body or barrel, a piston and a helical compression spring. The electrical contact is established by pressuring the contact body against a fixed, in particular, flat area called pad connector.
  • the spring loading the POGO pin ensures a permanent pressing of the free end of the POGO pin to the corresponding second contact section 22 in order to obtain low contact resistance.
  • Said spring-loaded pin may interact with a pad contact or a contact element comprising a cavity for receiving said pin for establishing the electrical connection.
  • SLCs For example, the following types of SLCs might be used:
  • SLCs provide a plurality of advantages, for example:
  • compression connectors may be used.
  • Said compression connectors comprise a spring-like contact, for example formed by a metallic flat material which interacts with the corresponding pad connector at the opposite side.
  • spiral connectors may be used comprising a spiral-shaped contact which may be compressed in the axial direction of the spiral when being pressed against a corresponding pad connector at the opposite side for establishing the electrical contact.
  • other connector types for realizing said first coupling means 20 are possible.
  • the door 10 comprises a removable door portion 11, constituted by a door cover or door cap and a fixed door portion, inter alia comprising a pair of door columns 13.
  • the removable door portion 11 may be removably assembled at the upper edge 10.1 of the door 10.
  • Said removable door portion 11 may be adapted such that after disassembling the removable door portion 11, the door 10 can be further disassembled.
  • the door 10 may comprise at least one glass pane 12, specifically the inner glass pane which can be removed from the door 10 in order to clean said glass pane 12.
  • Said door 10 is adapted to be partially disassembled, specifically manually disassembled without using any tools. For example, after removing the removable door portion 11, an opening is provided which allows a removal of an inner glass pane (in case that the door 10 comprises a double-glass pane structure) or an inner and a middle glass pane (in case that the door 10 comprises a triple-glass pane structure).
  • the door 10 may comprise a pair of door columns 13 which may be arranged at lateral edges of the front glass pane 14 and which may be non-separably (i.e. without damaging or destroying the door) mounted at said front glass pane 14.
  • the one or more glass panes 12 are laterally supported by said door columns 13.
  • said one or more glass panes 12 can be arranged at said door columns 13.
  • the one or more glass panes 12 are fixed at the door 10.
  • the removable door portion 11 blocks a movement of the one or more glass panes 12 towards an upper edge of the door and an undesired falling-out of the door panes 12 (in a direction towards the cavity 3 in the closed state of the door 10).
  • the removable door portion 11 may encompass the one or more glass panes 12 at least at an upper edge.
  • the first coupling means 20 may be arranged at the top portion, i.e. close to the upper edge 10.1 of the door 10. Furthermore, the removable door portion 11 may be also arranged at the upper edge 10.1 of the door 10 for enabling said disassembling of the door 10. So, according to embodiments, the first contact section 21 of the first coupling means 20 may be included in said removable door portion 11.
  • the arrangement of the first contact section 21 at the removable door portion 11 may be chosen such that said first contact section faces 21 the second contact section 22 in case that the removable door portion 11 is assembled at the door 10 and the door 10 is closed.
  • the first and second contact section 21, 22 are interacting with each other such, that after assembling the removable door portion 11 at the door 10 and closing the door, an electrical contact between the first and second contact section 21, 22 is achieved.
  • second coupling means 30 are provided.
  • Said second coupling means 30 comprise a third contact section 31 and a fourth contact section 32.
  • the third and the fourth coupling sections 31, 32 interact with each other such that in the assembled state of the removable door portion 11 a releasable electrical contact between said coupling sections 31, 32 is obtained.
  • the third and the fourth coupling sections 31, 32 are matching partners.
  • the removable door portion 11 comprises a third contact section 31 which is electrically coupled with the first contact section 21 (belonging to the first coupling means 20 establishing the electrical connection when the door 10 is closed).
  • Said electrical coupling may be, for example, constituted by a fixed wiring.
  • the fourth coupling section 32 may be arranged at a structural element of the door 10 (e.g. the frame, the door column 13 or a front glass pane) and may be electrically coupled with the first electrical component comprised within the door 10 by a wiring 40.
  • the second coupling means 30 are adapted to provide a releasable electrical contact between the first coupling means 20 and the first electrical component comprised within the door 10.
  • Said second coupling means 30 are configured such that in the assembled state of the removable door portion 11, an electrical connection between the first coupling means 20 and the first electrical component is provided and the electrical connection is opened when disassembling the removable door portion 11.
  • the third contact section 31 may comprise one or more pad connectors and the fourth contact section 32 may comprise one or more movable connectors (e.g. strip contacts, spring stripe contacts, springs etc.) interacting with said pad connectors. Also a vice versa configuration is possible.
  • Said movable connectors may be spring-loaded connectors, compression connectors, strip contacts, spring stripe contacts, springs and/or spiral connectors as described above.
  • a customer can easy disassemble said removable door portion 11, e.g. for cleaning purposes as well as reassemble it in the reverse way thereby establishing an electrical connection via the second coupling means 30 between the first electrical component and the first coupling means 20 without any fixed-wire connection between the removable door portion 11 and the door 10.
  • the second coupling means 30 are chosen such that an electrical connection is realized by simply arranging the removable door portion 11 at the door base structure or door frame.
  • the first and second coupling means 20, 30 may comprise contact sections 21, 22, 31, 32 comprising at least a high-conductive coating.
  • the contact sections 21, 22, 31, 32 may be gold-plated. Gold offers at the same time excellent protection against corrosion and oxidation.
  • other coating materials can be used, e.g. Ag, Cu, Ni, Ni, Rh, Pt.
  • the first and second coupling means comprise a spring (e.g. POGO-spring connectors or spring-loaded connectors)
  • also said spring may be gold- or silver-plated (excluding stainless steel springs).
  • the barrels of the spring-loaded connectors are plated twice (first with Nickel (e.g. 1-2 ⁇ m) followed by Gold (e.g. 0.1-1 ⁇ m)).
  • the main spring may be made out music wire, stainless steel wire, Beryllium Bronze etc.
  • an additional layer of e.g. Ag can be applied on it, e.g. having an additional thickness from 0.1- 3 mm.
  • Said additional layer may have a drop shape. This can be applied by means of welding-soldering, riveting etc. It can be applied directly on a plunger 22.1, 32.1 or contact strip 21.1.
  • a first electrical contact of said contact sections 21, 22, 31, 32 may comprise a tapered or conical shape.
  • the free end of the first electrical contact may comprise a tapered or conical shape.
  • the first electrical contact is a plunger 22.1 ( Fig. 3, 4 ).
  • the corresponding second electrical contact interacting with said first electrical contact may be a contact sleeve 21.1 comprising a cavity which is adapted to receive said free end of the first electrical contact, specifically, the free end of the plunger 22.1. Due to said tapered/conical shape, a highly reliable electrical contact is realized which provides a low contact resistance.
  • a preferred combination may be a spring loaded contact (SLC) or a spring contact on a first side (e.g. arranged at the chassis 2) and a stripe contact comprising a flat contact surface which is significantly larger than the spring loaded contact (SLC) or a spring contact at the other side (e.g. arranged at the door 10). Due to the detachable electrical connection between the first electrical component arranged within the chassis 2 of the household appliance 1 and the door 10 based on the first coupling means 20, the door 10 can also be disassembled (e.g. taken off the studs of the door hinge) without extra disconnection of the electrical connection between the door 10 and the chassis 2.
  • a door switch (not shown) can be connected to the electric power line and, immediately after the said door 10 is closed, electrical power can be provided to the second contact section 22. Accordingly, immediately after opening the door, electrical power to the second contact section 22 is interrupted and a customer may be able clean to contacts without any risks of causing a short circuit.
  • a door switch e.g.
  • a switch typically used for switching the light of the oven cavity which detects whether the door is opened or closed as a switch for electrical power provision to the second contact section 22 avoids sparks formation between the first and second contact section 21, 22 which may occur through the very low contact forces, door shattering or door bouncing. Furthermore, it avoids power disconnecting because of bounce of contacts.
  • the structural element of the door 10 may be the front-side door glass pane 14. Close to the upper edge of said front glass pane 14, the fourth contact section 32 may be provided which is interacting with a corresponding third contact section 31 arranged at the removable door portion 11.
  • the third/fourth contact section may be manufactured by means of Laser Direct Structuring (LDS) Technology which enables the combination of electronic and mechanical functions on one component. For example, a mechanically necessary component is first laser structured, then provided with strip conductors and subsequently takes an additional electronic task.
  • LDS Laser Direct Structuring
  • Fig. 7 shows a further embodiment of the fourth contact section 32.
  • the fourth contact section 32 is directly connected, e.g. by means of soldering to SMD (surface mounted device) 32.2 where connectors 32.3 (e.g. plugs) or wiring can be directly soldered as well.
  • plug-in type wiring can be directly plugged into the spring-loaded connector or directly connected by means of crimps etc.
  • An electrical component placed in/at the door 10 can be placed in the door 10 or on its front side (e.g. door handle 16) and can be connected by means of wiring 40 and, for example a connector 32.3 (plug) to above-mentioned fourth contact section 32.
  • the wiring may be fed through a hole 15 or a long-hole of the front glass pane 14. At the front side, said hole 15 may be covered by means of said door handle 16 or its adapter.
  • Fig. 8 and 9 show in detail the second contact section 22 ( fig. 8 is a front-side view and fig. 9 a rear-side view).
  • the second contact section 22 comprises a pair of spring-loaded connectors, e.g. plungers 22.1. Said spring-loaded connectors are integrated in a housing 20.1, preferably a plastic housing.
  • the housing 20.1 may be made ofPolybutylene terephthalate (PBT), liquid crystal polymer (LCP) or Polyphthalamide (PPA) including glass fibres (HTN).
  • the housing may be adapted to be screwed into the chassis or may comprise clips 22.3 for realizing a snap- in mechanism.
  • the second coupling means 30 may comprise a housing 32.4, in particular a plastic housing as described before (as shown in Fig. 7 ).
  • Each spring-loaded connector specifically each plunger 22.1 may comprise a connector portion for electrically coupling the respective spring-loaded connector with an electrical wiring.
  • Said connector portion may be provided at the rear side of the spring-loaded connector opposite to the contact surface facing the first contact section 21.
  • the connector portion is a crimp plug 22.2.
  • the connector portion may be adapted to directly receive a free end of an electrical wire or the connector portion comprises a soldering area at which the wire is directly fixed by soldering.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Electric Ovens (AREA)

Claims (14)

  1. Haushalts- oder Küchengerät, umfassend einen Hohlraum (3), enthalten in einem Gestellrahmen (2), und eine Tür zum Schließen des Hohlraums (2), wobei die Tür (10) eine erste elektrische Komponente umfasst, die mit einer zweiten elektrischen Komponente, die im Gestellrahmen (3) des Haushalts- oder Küchengeräts (2) enthalten ist, durch ein erstes Kopplungsmittel (20) im geschlossenen Zustand der Tür (10) lösbar elektrisch gekoppelt werden kann, wobei das erste Kopplungsmittel (20) einen ersten Kontaktabschnitt (21) umfasst, angeordnet an der Tür (10) zur lösbaren Interaktion mit einem entsprechenden zweiten Kontaktabschnitt (22), angeordnet am Gestellrahmen (3), wobei der erste Kontaktabschnitt so ausgelegt ist, dass, im geschlossenen Zustand der Tür (10), ein elektrischer Kontakt zwischen dem ersten und dem zweiten Kontaktabschnitt (21, 22) hergestellt ist und dass der elektrische Kontakt geöffnet ist, wenn die Tür (10) geöffnet wird, wobei der erste Kontaktabschnitt (21) an einem entfernbaren Türteil (11) angeordnet ist, wobei der entfernbare Türteil (11) ein entfernbares Türabdeckelement ist und die Tür (10) ein zweites Kopplungsmittel (30) zur lösbaren elektrischen Kopplung des ersten Kontaktabschnitts (21) mit der ersten elektrischen Komponente umfasst, wobei das zweite Kopplungsmittel (30) einen dritten und einen vierten Kontaktabschnitt (31, 32) umfasst, wobei der dritte Kontaktabschnitt (31) am entfernbaren Türteil (11) angeordnet ist und der vierte Kontaktabschnitt (32) an einem strukturellen Element der Tür (10) angeordnet ist, wobei der dritte und der vierte Kontaktabschnitt (31, 32) so angepasst und zueinander angeordnet sind, dass ein elektrischer Kontakt zwischen dem dritten und dem vierten Kontaktabschnitt (31, 32) hergestellt ist, wenn der entfernbare Türteil (11) an der Tür (10) montiert ist, und wobei der elektrische Kontakt offen ist, wenn der entfernbare Türteil (11) demontiert ist.
  2. Gerät nach Anspruch 1, wobei die erste elektrische Komponente einen elektrischen Sensor oder eine elektrisch angetriebene Komponente umfasst und die zweite elektrische Komponente eine Leistungsplatine oder eine Steuereinheit des Haushalts- oder Küchengeräts (1) umfasst.
  3. Gerät nach einem der vorhergehenden Ansprüche, wobei zumindest einer aus dem ersten und zweiten Kontaktabschnitt (21, 22) und dem dritten und vierten Kontaktabschnitt (31, 32) ein Paar zusammenpassender Kontaktabschnitte (21, 22, 31, 32) bilden, das einen elektrischen Verbinder vom Kompressionstyp oder Gleittyp umfasst, wobei insbesondere erste und zweite Kontaktabschnitte (21, 22) einen elektrischen Verbinder vom Kompressionstyp umfassen und/oder der dritte und vierte Kontaktabschnitt (31, 32) einen Verbinder vom Gleittyp umfassen.
  4. Gerät nach einem der vorhergehenden Ansprüche, wobei der erste Kontaktabschnitt (21) nahe einer oberen Kante (10.1) der Tür (10), insbesondere nahe an einer von zwei oberen Ecken (10.2) der Tür (10) angeordnet ist, wobei vorzugsweise zumindest eine aus der ersten und zweiten elektrischen Komponente in einem oberen Bereich der Tür (10) oder des Gestellrahmens (2) enthalten ist, wobei, insbesondere, die Tür (10) schwenkbar mit dem Gestellrahmen (2) des Haushalts- oder Küchengeräts (1) um eine horizontale Achse an ihrem unteren Kantenbereich oder um eine vertikale Achse an einem ihrer lateralen Kantenbereiche verbunden ist.
  5. Gerät nach einem der vorhergehenden Ansprüche, wobei das erste Kopplungsmittel (20), insbesondere der erste und zweite Kontaktabschnitt (21, 22) zumindest einen Verbinder vom Kompressionstyp umfassen, namentlich einen federbelasteten Verbinder, Kompressionsverbinder und/oder Spiralverbinder, und/oder wobei einer aus dem ersten und dem zweiten Kontaktabschnitt (21, 22) des ersten Kopplungsmittels (20) einen festen, elektrisch leitfähigen Kontaktbereich umfasst und sein dazu passender Partner einen bewegbaren, federbelasteten, elektrisch leitfähigen Kontaktbereich umfasst.
  6. Gerät nach einem der vorhergehenden Ansprüche, wobei der dritte und der vierte Kontaktabschnitt (32, 32) der zweiten Kopplung (30) zumindest einen Verbinder vom Kompressionstyp, insbesondere einen federbelasteten Verbinder, einen Kompressionsverbinder oder einen Spiralverbinder umfasst, und/oder wobei der dritte und der vierte Kontaktabschnitt (31, 32) des zweiten Kopplungsmittels (30) beide zusammenpassende feste, elektrisch leitfähige Kontaktbereiche umfassen, die dazu angepasst sind, durch eine Bewegung, insbesondere eine gleitende Bewegung, in elektrischen Kontakt gebracht zu werden, wenn der entfernbare Türteil (11) an der Tür (10) montiert ist.
  7. Gerät nach einem der vorhergehenden Ansprüche, umfassend zumindest eine innere Glastafel (12), wobei die innere Glastafel (12) entfernbar an oder in der Tür (10) montiert ist, wobei die innere Glastafel (10) eine obere Kante umfasst, die durch den entfernbaren Türteil (11) im montierten Zustand der inneren Glastafel (12) bedeckt werden kann.
  8. Gerät nach einem der Ansprüche 4 bis 7, wobei der entfernbare Türteil (11) an der oberen Kante (10.1) der Tür (10) angeordnet ist, wobei, insbesondere, der entfernbare Türteil (11) angrenzend an oder an einer oberen Kante einer vorderen Glastafel (14) der Tür (10) angeordnet ist.
  9. Gerät nach einem der vorhergehenden Ansprüche, umfassend eine vordere Glastafel (14), zwei Türsäulen (13), befestigt an gegenüberliegenden Seiten in den lateralen Bereichen der vorderen Glastafel (14) an der zum Hohlraum zeigenden Seite davon und zumindest eine innere Glastafel, die an den zwei Türsäulen (13) befestigt werden kann, wobei der entfernbare Türteil (11) entfernbar verbunden ist, insbesondere vollständig entfernbar mit den zwei Türsäulen (13) verbunden ist.
  10. Gerät nach einem der vorhergehenden Ansprüche, wobei das erste und/oder das zweite Kopplungsmittel (21, 22) zumindest einen Stift (22.1) und zumindest eine Kontakthülse (21.1), die einen Hohlraum zum Aufnehmen des Stifts (22.1) bereitstellt, umfasst, wobei der Stift (22.1) ein konisches oder sich verjüngendes freies Ende umfasst, das im Hohlraum der Kontakthülse (21.1) aufgenommen ist, und/oder wobei das erste und/oder das zweite Kopplungsmittel (21, 22) zumindest einen Stift (22.1) und zumindest einen Kontaktstreifen (21.2) umfasst.
  11. Gerät nach einem der vorhergehenden Ansprüche, wobei der Stift (22.1) federbelastet ist.
  12. Gerät nach einem der vorhergehenden Ansprüche, wobei zumindest eine der elektrischen Kontaktoberflächen des ersten, zweiten, dritten oder vierten Kontaktabschnitts (21, 22, 31, 32) mit Au, Ag, Cu, Ni, Rh oder Pt beschichtet ist und/oder wobei zumindest eine Feder, die eine Federbelastung des ersten und/oder zweiten Kopplungsmittels (20, 30) bereitstellt, mit Au, Ag, Cu, Ni, Rh oder Pt beschichtet ist.
  13. Gerät nach einem der vorhergehenden Ansprüche, wobei zumindest einer der Kontaktabschnitte (21, 22, 31, 32) zumindest teilweise in einem Gehäuse integriert ist, insbesondere in einem Kunststoffgehäuse, das aus Polybutylenterephthalat (PBT), Flüssigkristallpolymer (LCP) oder Polyphthalamid (PPA) mit eingeschlossenen Glasfasern (HTN) gefertigt ist, wobei das Gehäuse am Gestellrahmen (2) oder der Tür (10) montiert ist, insbesondere durch Schrauben oder einen Klemmmechanismus montiert ist.
  14. Gerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Gerät ein Ofen zur Zubereitung von Speisen ist.
EP16725405.1A 2015-05-26 2016-05-12 Haushaltsgerät mit einer tür Active EP3303930B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP2015169120 2015-05-26
PCT/EP2016/060716 WO2016188765A1 (en) 2015-05-26 2016-05-12 Door and household appliance comprising a door

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EP3303930A1 EP3303930A1 (de) 2018-04-11
EP3303930B1 true EP3303930B1 (de) 2021-03-10

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100154172A1 (en) * 2008-12-22 2010-06-24 Whirlpool Corporation Handle with docking station

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100154172A1 (en) * 2008-12-22 2010-06-24 Whirlpool Corporation Handle with docking station

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