WO2015039774A1 - Unité d'affichage pour appareil électroménager - Google Patents

Unité d'affichage pour appareil électroménager Download PDF

Info

Publication number
WO2015039774A1
WO2015039774A1 PCT/EP2014/060628 EP2014060628W WO2015039774A1 WO 2015039774 A1 WO2015039774 A1 WO 2015039774A1 EP 2014060628 W EP2014060628 W EP 2014060628W WO 2015039774 A1 WO2015039774 A1 WO 2015039774A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
display unit
display
main surface
deflecting
Prior art date
Application number
PCT/EP2014/060628
Other languages
German (de)
English (en)
Inventor
Christoph Becke
Max Eicher
Klaus Försterling
Christine Hartwein
Andreas Kessler
Philipp Kleinlein
Ralph Staud
Thomas Tischer
Original Assignee
BSH Bosch und Siemens Hausgeräte GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Publication of WO2015039774A1 publication Critical patent/WO2015039774A1/fr

Links

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
    • F25D27/00—Lighting arrangements
    • F25D27/005—Lighting arrangements combined with control means
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F23/00—Advertising on or in specific articles, e.g. ashtrays, letter-boxes
    • G09F23/0058—Advertising on or in specific articles, e.g. ashtrays, letter-boxes on electrical household appliances, e.g. on a dishwasher, a washing machine or a refrigerator

Definitions

  • the invention relates to a display unit for a household appliance and a household appliance with a display unit.
  • Refrigeration appliances in particular designed as household appliances refrigerators are known and are used to housekeeping in households or in the catering sector to store perishable food and / or drinks at certain temperatures.
  • Such refrigerators have a display unit having operating parameters, e.g. indicate the temperature to a user in a refrigerated, frozen or fresh compartment for storing refrigerated goods.
  • operating parameters e.g. indicate the temperature to a user in a refrigerated, frozen or fresh compartment for storing refrigerated goods.
  • information displayed by the display unit is not visually highlighted.
  • the present invention is based on the recognition that by a steered
  • Light emission information can be reproduced more easily perceptible.
  • the object of the invention is achieved by a display unit for a household appliance, which has a display element.
  • the display unit has an optical waveguide, in which light for illuminating the display element can be coupled.
  • the light guide has an areal configuration with a first main area and a second main area, wherein the first main area faces the display element and the second main area has a light deflecting structure, which is configured to direct light fed into the optical waveguide in the direction of the first main area.
  • the light deflecting structure causes the light to exit the optical fiber through the first main surface facing the display element.
  • a refrigeration device is understood in particular to be a household appliance, that is to say a refrigeration device which is used for household purposes in households or in the gastronomy sector and serves, in particular, for storing food and / or drinks at specific temperatures, such as, for example, a refrigerator
  • Freezer a fridge freezer, a freezer or a
  • a household appliance is a device that is used for household management. This can be a large household appliance, such as a
  • Washing machine a tumble dryer, a dishwasher, a cooking appliance, an extractor hood or a refrigerator, such. a refrigerator, a freezer or a fridge-freezer. But this can also be a small household appliance, such as a water heater, a coffee machine, a food processor or a vacuum cleaner.
  • the light deflecting structure has at least one light deflecting element, in particular a notch, formed in the second main surface.
  • the light deflecting structure has a
  • the light deflecting elements are arranged parallel to each other, wherein a distance between successive Lichtablenkierin decreases with increasing distance from a light source for feeding light into the light guide.
  • the technical advantage is achieved that the display unit can be illuminated uniformly.
  • the light deflecting structure has a
  • a plurality of light deflecting elements wherein the light deflecting elements by parallel Notches are formed. A depth of successive notches increases
  • the display unit can be illuminated uniformly.
  • the light deflecting element has a semicircular cross section. This achieves the technical advantage that the light is efficiently deflected by the light deflection element.
  • the light guide has a
  • the technical advantage is achieved that the light can be coupled on one side.
  • the technical advantage achieved by the light-guiding angle section is that a light source whose light is coupled into the light guide is free, e.g. in the rear area of the display unit, can be arranged.
  • the light coupling surface is formed by an edge portion of the light guide.
  • the light deflecting structure is in the
  • the light deflection structure comprises an additively applied layer with light-deflecting properties. This achieves the technical advantage that the light deflection structure can be efficiently formed.
  • the first main surface is provided with a scattering device for scattering light. This achieves the technical advantage that the light coupled out of the light guide through the first main surface by the light deflection structure is scattered and forms a luminous pattern of the light
  • the scattering device has a scattering film.
  • a light source for coupling light into the coupling surface of the light guide in particular by means of light-emitting diodes, is provided. This achieves the technical advantage of providing a light source for coupling light into the light guide. Light emitting diodes provide an efficient light source.
  • the display element comprises a liquid crystal display.
  • Display element information e.g. to operating parameters such as the temperature of a refrigerated compartment, can be output.
  • the light deflecting structure is designed to reproduce a predetermined luminous pattern.
  • the light pattern divides a display field of the display unit, in particular by luminous lines, in a plurality of
  • Luminous lines represent an efficient structure element.
  • Fig. 1 is a front view of a refrigerator
  • FIG. 2 is a schematic representation of a display unit of a refrigeration device
  • FIG. 4 is a side view of the display unit shown in Fig. 3,
  • Fig. 5 is a side view of the display unit shown in Fig. 3 with a
  • Fig. 6 is a side view of the display unit shown in Fig. 3, in the
  • the refrigerator serves, for example, for cooling food.
  • the refrigeration device 100 has, according to one embodiment, an upper refrigerator door 102 and a lower refrigerator door 104 at its front side. With the upper one
  • Refrigeration appliance door 102 an upper refrigeration compartment 106 can be opened, which is formed in the present embodiment as a refrigerating compartment 1 12. With the lower refrigerator door 104, a lower refrigeration compartment 108 can be opened in the present
  • Embodiment as a freezer compartment 1 14 is formed.
  • the refrigeration device 100 includes a refrigerant circuit with an evaporator, a compressor, a condenser and a throttle body.
  • the evaporator is designed as a heat exchanger in which, after expansion, the liquid refrigerant is vaporized by absorbing heat from the medium to be cooled, ie air inside the refrigerator.
  • the compressor is a mechanically driven component that draws refrigerant vapor from the evaporator and expels it at higher pressure to the condenser.
  • the condenser is designed as a heat exchanger in which, after compression, the evaporated refrigerant is released by heat to an external cooling medium, i. the ambient air is liquefied.
  • the throttle body is a device for the continuous reduction of the pressure by reduction in cross section.
  • the refrigerant is a fluid that is used for heat transfer in the refrigeration system and that absorbs heat at low temperature and lower pressure of the fluid and releases heat at higher temperature and pressure of the fluid, usually including changes in state of the fluid.
  • the refrigeration device 100 has according to one embodiment, a display unit 1 10, which is arranged on the refrigerator front side. According to one embodiment, the display unit 1 10 is formed, the temperature in the cooling compartment 1 12 and the
  • FIG. 2 shows the display unit 1 10.
  • the display unit 110 illustrated in FIG. 2 has a first display field 202 for the temperature setpoint in the refrigeration compartment 1 12 and a second display field 204 for the temperature setpoint in the freezer compartment 14. Furthermore, according to one embodiment, the display unit 1 10 has a third display field 206 for a
  • the display unit 110 has a fourth display field 208, in which, according to one embodiment, operating states of the refrigeration device 100, such as e.g. Temperatures to be displayed to a user.
  • the display unit 1 10 a control panel 210, which allows a user to set, for example, the setpoint temperatures.
  • an optical waveguide 200 is associated with the first display field 202, the second display field 204, the third display field 206 and the fourth display field 208.
  • the light guide 200 according to one embodiment causes illumination of the first display panel 202, the second display panel 204, the third display panel 206 and the fourth display panel 208.
  • light is coupled into the light guide 200, for example at the edge.
  • the light guide 200 is, according to one embodiment, made of an optically transparent plastic, e.g. Plexiglas, manufactured by injection molding.
  • the display unit 1 10 shown in FIG. 2 has a light deflection structure 212.
  • the Lichtablenk Scheme 212 has according to a
  • Embodiment a first Lichtablenkelement 214, a second Lichtablenkelement 216 and a third Lichtablenkelement 218 on.
  • the first light deflecting element 214 separates the first display field 202 and the second display field 204 from each other.
  • the second light deflector 216 separates the second display panel 204 and the third display panel 206 from each other.
  • Light deflector 218 separates the third display panel 206 and the fourth display panel 208 from each other.
  • FIG. 3 shows the display unit 1 10.
  • the display unit 1 10 shown in FIG. 3 has the light guide 200, a light source 302 and a display element 304.
  • the display element 304 may comprise, for example, an LCD module with LCDs (LCD: Liquid Crystal Display).
  • the light source 302 has, according to one embodiment, a plurality of LEDs which are arranged on a circuit board 300. For reasons of clarity, only one of the LEDs is designated by reference numeral 320 in FIG.
  • the optical waveguide 200 has, according to one embodiment, a two-dimensional design with two opposing main surfaces 308, 310.
  • the first main surface 308 as the front side 314, that is to say facing a user
  • the second main surface 310 as the rear side 316, ie facing away from a user.
  • the light guide 200 has a substantially rectangular basic shape.
  • the light guide 200 For a light coupling into the light guide 200, the light guide 200 has a
  • Incorporate light source 302 in the optical fiber 200 that then decouples from the optical fiber 200 through the front side 314.
  • incorporate light source 302 in the optical fiber 200 that then decouples from the optical fiber 200 through the front side 314.
  • the angle section 312 causes a
  • Light deflection by an angle according to one embodiment by 90 °.
  • the light source 302 whose light couples into the light guide 200, the existing space in the refrigerator 100 are optimally exploited.
  • Light deflecting structure 212 arranged, which causes a deflection of light from the light guide 200 toward the front side 314, so that a graphic element 318 is illuminated, which is an information such. a temperature value.
  • the light deflecting elements 214 are, according to one embodiment, formed as linear elements, e.g. as dividing lines, which may be formed by parallel notches. In an alternative embodiment, the light deflecting elements 214 are formed as point-like elements or a combination of linear and point-shaped elements and combined to form a dot matrix.
  • the light deflecting structure 212 may be formed by satinizing the back surface 316 of the light guide 200, e.g. in that the rear side 316 is beaded, ground, lasered or etched. Alternatively, according to a
  • the back 316 are made by injection molding, i. During the injection molding of the light guide 200 is in a manufacturing step, the
  • Light deflecting structure 212 formed, e.g. by a corresponding surface structure of a mold used for injection molding. Furthermore, alternatively
  • Lichtablenk Concept 212 have an additive coated layer. It can be applied, for example, a paint, or there is a powder coating.
  • 4 shows the display unit 1 10, which is inserted into a housing 400.
  • FIG 5 shows the display unit 1 10 with a scatterer 500.
  • the scattering device 500 is connected upstream of the light guide 200 on the light output side.
  • the spreader 500 scatters that from the
  • the scattering device 500 has a scattering film 502. According to an alternative embodiment, the
  • Scattering device having a portion of a front side 314 of the light guide 200, which has a roughness that is greater than the roughness of a back side 316 of the light guide 200.
  • the roughness can be formed by the fact that the section is beaded or ground or lasered or etched or made by injection molding.
  • FIG. 5 shows that the light deflection elements 214 can have different distances to the light source 302. To compensate for loss of brightness by a greater distance from the light source 302, more distant light deflection elements 214 are spaced closer together than closer light deflection elements 214
  • FIG. 5 shows that a first pair 504 of two adjacent ones
  • Light source 302 is arranged.
  • Light deflecting elements 214 has a second distance B, wherein the second pair 506 is disposed at a second distance D2 from the light source 302. In this case, the first distance D1 from the light source 302 is greater than the second distance D2.
  • the first distance A smaller than the second distance B.
  • the distance at a greater distance from the light source 302 is smaller.
  • the light deflecting elements 214 of the light deflecting structure 212 are formed as notches 600, which extend with a depth from the rear side 316 in the direction of the front side 314 into the light guide 200.
  • the light deflecting elements 214 have different depths T1, T2, depending on their distance from the light source 302.
  • the depths T1, T2 are in accordance with a
  • Embodiment a parameter of the light deflecting elements 214, which affects the brightness of the exiting light.
  • FIG. 6 shows that a first light deflecting element 214 having a first distance D1 from the light source 302 has a first depth T1 and a second light deflecting element 214 has a second depth T2 at a second distance D2 from the light source 302.
  • the first distance D1 is greater than the second distance D2, wherein the first depth T1 is greater than the second depth T2, to compensate for the loss of brightness due to the greater distance D1 to the light source 302.
  • light from the light source 302 is coupled through the light incidence surface 306 into the light guide 200 located on the front side 314 in the region of
  • the display unit 1 10 has a display element 304, wherein the display unit 1 10 has a light guide 200, in which light to
  • the light guide 200 has a planar configuration with a first main surface 308 and a second main surface 310, wherein the first main surface 308 faces the display element 304 and the second main surface 310 has a light deflection structure 212, which is formed in the light guide 200 fed light in Direction of the first main surface 308 to steer.
  • the light deflection structure 212 comprises at least one light deflecting element 214 formed in the second main surface 310, in particular a notch 600.
  • the light deflection structure 212 has a plurality of light deflection elements 214, in particular elongate notches 600, which are arranged parallel to one another. A distance between successive ones
  • Light deflectors 214 increases with increasing distance from a light source 302 for feeding light into the light guide 200.
  • the light deflecting structure 212 comprises a plurality of light deflecting elements 214, wherein the light deflecting elements 214 are formed by parallel notches 600. A depth of successive notches 600 increases
  • the light deflecting element 214 has a semicircular cross section.
  • the light guide 200 has a light coupling-in surface 306 for coupling in light, and a light-guiding angle section 312 is arranged between the light coupling-in surface 306 and the light deflection structure 212.
  • the light coupling surface 306 is characterized by a
  • Edge portion of the light guide 200 is formed.
  • the light deflecting structure 212 is milled or lasered or made by injection molding in the light guide 200.
  • the light deflecting structure 212 comprises an additively deposited layer having light-deflecting properties.
  • the first main surface 308 is provided with a diffuser 500 for diffusing light.
  • the scattering device 500 has a scattering film 502.
  • a light source 302 is provided for coupling light into the coupling surface 306 of the light guide 200, in particular by means of light-emitting diodes.
  • the display element 304 comprises a Liquid crystal display.
  • the light deflecting elements 214 are arranged in a dot matrix, in particular in a geometric pattern.
  • the light deflecting structure 212 is configured to reflect a predetermined lighting pattern 700.
  • the light pattern 700 divides a display field 702 of the display unit 1 10, in particular by luminous lines, into a plurality of display areas 704.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Planar Illumination Modules (AREA)

Abstract

L'invention concerne une unité d'affichage (110) pour un appareil électroménager (100). Selon l'invention, l'appareil d'affichage (110) présente un guide optique (200) dans lequel peut être injectée de la lumière aux fins d'éclairage de l'élément d'affichage (304). Le guide optique (200), de configuration plate, présente une première face principale (308) et une deuxième face principale (310), la première face principale (308) étant orientée vers l'élément d'affichage (304) et la deuxième face principale (310) présentant une structure de déviation lumineuse (212) conçue pour dévier la lumière, injectée dans le guide optique (200), en direction de la première face principale (308).
PCT/EP2014/060628 2013-09-18 2014-05-23 Unité d'affichage pour appareil électroménager WO2015039774A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013218699.1 2013-09-18
DE201310218699 DE102013218699A1 (de) 2013-09-18 2013-09-18 Kältegerät mit einer Anzeigeeinheit

Publications (1)

Publication Number Publication Date
WO2015039774A1 true WO2015039774A1 (fr) 2015-03-26

Family

ID=50771503

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/060628 WO2015039774A1 (fr) 2013-09-18 2014-05-23 Unité d'affichage pour appareil électroménager

Country Status (2)

Country Link
DE (1) DE102013218699A1 (fr)
WO (1) WO2015039774A1 (fr)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0403764A1 (fr) * 1989-06-19 1990-12-27 Inotec Gmbh Gesellschaft Für Innovative Technik Dispositif d'affichage illuminé, en particulier numéro de maison, enseigne pour trafic, support de publicité
WO2002050804A2 (fr) * 2000-12-21 2002-06-27 BSH Bosch und Siemens Hausgeräte GmbH Appareil menager electrique
KR20060013202A (ko) * 2004-08-06 2006-02-09 엘지전자 주식회사 발광 로고 어셈블리
DE102005057154A1 (de) * 2005-11-30 2007-05-31 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät mit einem von einer Glastür her beleuchteten Innenraum
DE102006053906A1 (de) * 2006-11-15 2008-05-21 BSH Bosch und Siemens Hausgeräte GmbH Design- und Anzeigeelemente für Haushaltgeräte
WO2008058972A1 (fr) * 2006-11-15 2008-05-22 BSH Bosch und Siemens Hausgeräte GmbH Dispositif d'éclairage sur un appareil ménager
US20100026703A1 (en) * 2008-07-31 2010-02-04 Parker Jeffery R Optically transmissive substrates and light emitting assemblies and methods of making same, and methods of displaying images using the optically transmissive substrates and light emitting assemblies
DE102008041626A1 (de) * 2008-08-27 2010-03-04 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit Innenbeleuchtung
WO2010133517A2 (fr) * 2009-05-22 2010-11-25 Arcelik Anonim Sirketi Dispositif de refroidissement dont le couvercle est éclairé
EP2363056A1 (fr) * 2010-03-02 2011-09-07 Indesit Company S.p.A. Appareil électroménager
EP2420176A2 (fr) * 2010-08-17 2012-02-22 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. Lave-vaisselle

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0403764A1 (fr) * 1989-06-19 1990-12-27 Inotec Gmbh Gesellschaft Für Innovative Technik Dispositif d'affichage illuminé, en particulier numéro de maison, enseigne pour trafic, support de publicité
WO2002050804A2 (fr) * 2000-12-21 2002-06-27 BSH Bosch und Siemens Hausgeräte GmbH Appareil menager electrique
KR20060013202A (ko) * 2004-08-06 2006-02-09 엘지전자 주식회사 발광 로고 어셈블리
DE102005057154A1 (de) * 2005-11-30 2007-05-31 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät mit einem von einer Glastür her beleuchteten Innenraum
DE102006053906A1 (de) * 2006-11-15 2008-05-21 BSH Bosch und Siemens Hausgeräte GmbH Design- und Anzeigeelemente für Haushaltgeräte
WO2008058972A1 (fr) * 2006-11-15 2008-05-22 BSH Bosch und Siemens Hausgeräte GmbH Dispositif d'éclairage sur un appareil ménager
US20100026703A1 (en) * 2008-07-31 2010-02-04 Parker Jeffery R Optically transmissive substrates and light emitting assemblies and methods of making same, and methods of displaying images using the optically transmissive substrates and light emitting assemblies
DE102008041626A1 (de) * 2008-08-27 2010-03-04 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit Innenbeleuchtung
WO2010133517A2 (fr) * 2009-05-22 2010-11-25 Arcelik Anonim Sirketi Dispositif de refroidissement dont le couvercle est éclairé
EP2363056A1 (fr) * 2010-03-02 2011-09-07 Indesit Company S.p.A. Appareil électroménager
EP2420176A2 (fr) * 2010-08-17 2012-02-22 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. Lave-vaisselle

Also Published As

Publication number Publication date
DE102013218699A1 (de) 2015-03-19

Similar Documents

Publication Publication Date Title
EP3108192B1 (fr) Réfrigérateur ménager muni d'un battant de porte comprenant une poignée encastrée
DE102013225957A1 (de) Beleuchtung mit einem Lichtleiter und Haushaltskältegerät mit einer solchen Beleuchtung
DE102012216372A1 (de) Kältegerät mit einer Eis- oder Wasserausgabe
EP2317264A1 (fr) Appareil de refroidissement doté d'un éclairage de l'espace intérieur
WO2015078727A1 (fr) Appareil de froid domestique équipé d'un système d'éclairage de l'espace intérieur
EP3321592A1 (fr) Appareil de cuisson doté d'éléments d'éclairage
EP3008411B1 (fr) Appareil de froid ménager doté d'un dispositif d'éclairage intérieur et doté d'étagères transparentes
EP1537357B1 (fr) Element de cuisine equipee
WO2014090726A1 (fr) Appareil de froid muni d'un balconnet de rangement
EP2857754B1 (fr) Appareil ménager
WO2015039774A1 (fr) Unité d'affichage pour appareil électroménager
WO2011006773A1 (fr) Plaque de couverture d'appareil ménager comportant une gravure intérieure laser
WO2019081173A1 (fr) Appareil frigorifique domestique
EP3040231A2 (fr) Afficheur d'etat de fonctionnement d'un vehicule automobile
DE102006039502A1 (de) Geräteblende
WO2015039773A1 (fr) Unité d'affichage pour appareil électroménager
CN206489292U (zh) 显示装置
DE102018200193A1 (de) Projizieren von Lichtinformation in ein Haushaltsgerät
WO2018219599A1 (fr) Bande lumineuse
WO2018019579A1 (fr) Appareil de froid doté d'un dispositif d'éclairage
WO2018077632A1 (fr) Appareil ménager comprenant un espace intérieur et un éclairage d'espace intérieur
DE102014212396A1 (de) Haushaltsgerät mit einer perforierten Gerätekomponente
WO2015161986A1 (fr) Dispositif d'affichage et appareil ménager comportant un tel dispositif d'affichage
DE102016012005A1 (de) Kühl- und/oder Gefriergerät
DE102017011926A1 (de) Haushaltskühlschrank mit einem Wand-Leuchtmodul

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14725712

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14725712

Country of ref document: EP

Kind code of ref document: A1