EP3182002B1 - Module d'éclairage - Google Patents

Module d'éclairage Download PDF

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Publication number
EP3182002B1
EP3182002B1 EP16201757.8A EP16201757A EP3182002B1 EP 3182002 B1 EP3182002 B1 EP 3182002B1 EP 16201757 A EP16201757 A EP 16201757A EP 3182002 B1 EP3182002 B1 EP 3182002B1
Authority
EP
European Patent Office
Prior art keywords
housing
support surface
lighting module
cooling element
frame body
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
EP16201757.8A
Other languages
German (de)
English (en)
Other versions
EP3182002A1 (fr
Inventor
Dominik Abele
Simon Hörter
Carlo Tentelli
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
Vossloh Schwabe Italia SpA
Original Assignee
BSH Hausgeraete GmbH
Vossloh Schwabe Italia SpA
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 Hausgeraete GmbH, Vossloh Schwabe Italia SpA filed Critical BSH Hausgeraete GmbH
Publication of EP3182002A1 publication Critical patent/EP3182002A1/fr
Application granted granted Critical
Publication of EP3182002B1 publication Critical patent/EP3182002B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F21V19/004—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources by deformation of parts or snap action mountings, e.g. using clips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0004—Personal or domestic articles
    • F21V33/0044—Household appliances, e.g. washing machines or vacuum cleaners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a lighting module, in particular for a household appliance.
  • a lighting module for a household appliance which contains a circuit board with at least one light source.
  • the lighting module is assembled by gluing the heat sink and the board together before use in the housing of the lighting module.
  • US 2002/0044456 A1 describes a lighting module with a housing and an LED arranged on a board.
  • the board is glued to the housing inside the housing, the housing itself being the heat sink.
  • Gluing the board to the cooling element in both lighting modules is relatively time consuming. This adds to the total time required to assemble the lighting module.
  • the lighting module of EP 1 803 993 A1 has a housing having a first portion and a second portion which is screwed onto the first portion upon assembly of the lighting module.
  • a spring is tensioned against a plate holding the light source, which plate is thereby pressed against a shoulder on the inside of the wall of the first section.
  • the object of the present invention is to provide an improved concept for a lighting module, which allows a simple and time-saving construction.
  • the lighting module according to the invention has a housing for receiving a light unit.
  • the light unit of the illumination module has a carrier element with at least one light source.
  • the light unit is preferably arranged in the housing.
  • the lighting module has a cooling element separate from the housing for cooling the light unit.
  • the fastening device for the cooling element and the light unit on and / or in the housing has a cover for the housing, which is connected to the housing, a bearing surface for the support element and at least one elastically deformed fastening element, which between the cooling element and the lid is effective to push the cooling element to the support element.
  • the housing has an outer frame body and an inner frame body, wherein the inner frame body provides the bearing surface, and wherein a clearance is defined between the inner frame body and the outer frame body.
  • a domestic appliance with the lighting module according to the invention is specified.
  • the household appliance is, for example, a kitchen household appliance, in particular an extractor hood.
  • the lighting module according to the invention is simple in construction and can be assembled quickly.
  • a rattling of the lighting module for example, the cover against the housing or the cooling plate or the support member against each other or against the housing in vibration, as they may occur for example in cooker hoods, can be largely avoided.
  • the fastening device with the elastically deformed fastener also provides some tolerance to mechanical shock or movement. By the fastening device, a flat and preferably uniform pressing of the cooling element to the support element of the light unit can be achieved.
  • coarser tolerances in the manufacture of the components of the housing can be compensated with the fastening device with an elastically deformed fastening element.
  • the illumination module has a light guide element and an optical frame, wherein the light guide element is held between the optical frame and the housing.
  • the light-guiding element is set up to appropriately guide the light from the light source in order to determine a radiation characteristic of the lighting module.
  • the light guide element has corresponding parts such as lenses or reflectors.
  • the lighting module can be set up, for example, for use in a household appliance, in particular in a kitchen household appliance.
  • the kitchen household appliance is, for example, an extractor hood, a refrigerator or a stove oven.
  • the lighting module can be used, for example, for interior lighting of the household appliance or the lighting of the environment of the household appliance can be used.
  • the lighting module can be arranged in, on or at the household appliance.
  • the lighting module can be embedded, for example, in an extractor hood or a kitchen cabinet.
  • the light unit has a carrier element and at least one light source.
  • the illumination module can have two or more carrier elements, wherein at least one light source is arranged on a carrier element.
  • the carrier element is preferably a plate-shaped or strip-shaped carrier element. On or in the carrier element lines or electrical components may be arranged for operating the light source.
  • the carrier element may be, for example, a printed circuit board.
  • the light source preferably has a light-emitting semiconductor component.
  • the light source may represent, for example, a light emitting diode (LED).
  • the light unit can define a main emission direction, which can be modified by a light guide element of the illumination module to a main emission direction of the illumination module.
  • the housing is used to hold the light unit.
  • the carrier element and / or at least one light source are arranged in the housing.
  • the housing may, for example, cover the light unit transversely to the emission direction of the light source or the modified emission direction by the light guide element and / or visually and / or mechanically shield it.
  • the housing is in one piece.
  • the parts of the housing are preferably connected to each other seamlessly in one piece.
  • the case is preferably made of plastic.
  • the housing is made of non-transparent material.
  • the housing may be made, for example, by an injection molding process.
  • the housing has an outer frame body with outer walls.
  • the frame body may have four walls which are spaced apart from one another, for example in a cuboid, transversely to the emission direction of the light source or of the light-guiding element.
  • the outer frame body has an exit opening for the light in the emission direction of the light unit or of the illumination module.
  • the outer frame body may also have an opening on the side opposite the emission direction.
  • Lighting modules are often arranged, for example in an extractor hood, so that the emission direction points downwards. Accordingly, the lighting module according to the invention can be open at the bottom and / or on the opposite side, upwards.
  • the housing and the cooling element are designed as separate components.
  • the cooling element is preferably spaced from the housing.
  • the cooling element can be, for example, a plate-shaped or otherwise shaped heat sink.
  • the cooling element preferably contains or consists of aluminum or highly thermally conductive plastic.
  • the cooling element may have cooling ribs or be free of cooling ribs.
  • the cooling element can act passively by absorbing heat from the light unit and delivering it to the environment. For this purpose, a good investment of the cooling element to the light unit is required, which is ensured by the fastening device according to the invention.
  • the fastening device provides a bearing surface for the carrier element of the light unit.
  • the cooling element and the carrier element are arranged in particular between the fastening element and the support surface.
  • the support surface is arranged on the housing.
  • the carrier element is in contact with the support surface on the support surface.
  • the bearing surface serves to support the carrier element.
  • the bearing surface may be continuous or discontinuous.
  • the support surface may have flat, strip-shaped, line-like sections and / or quasi-point-like sections.
  • the support surface can be spanned by a transverse direction and a longitudinal direction. The transverse direction and the longitudinal direction can be perpendicular to each other.
  • Strip-shaped and in particular linear or quasi point-shaped sections offer the advantage that the heat transfer between the support surface and the carrier element can be small, so that the heat is preferably dissipated primarily via the cooling element. Apart from a reduced heat transfer can be achieved with appropriate bearing surfaces a defined support and thus orientation of the light unit in the lighting module in general rather than with a large contact surface. With large-area plastic surfaces, for example, there is the danger that, despite the greatest care during production, they will not be completely flat.
  • the bearing surface is on a support surface arranged.
  • the support surface is arranged on the support surface on a side facing the main emission of the light unit or the lighting module side of the support surface support.
  • the bearing surface can be arranged in particular on the housing.
  • the housing may have a frame body with a support surface.
  • the support surface is preferably arranged in an inner space bounded by the housing.
  • the support surface for the support element of the light unit is strip-shaped.
  • the support surface for the support element of the light unit is strip-shaped.
  • form strip-shaped sections of the support surface a frame-shaped support surface.
  • the frame-shaped bearing surface may have interruptions.
  • the fastening device also has an elastically deformed fastening element which acts between the cooling element and the cover in order to press the cooling element against the support element.
  • the fastener may be connected, for example, to the cooling element or to the cover in direct or indirect contact, e.g. over an intermediate part, stand.
  • the cooling element and the fastening element or the cover and the fastening element define a common contact surface.
  • connection between the cooling element and the carrier element is exclusively a positive and / or non-positive connection.
  • connection between the carrier element and the support surface is preferably exclusively a positive and / or non-positive connection.
  • the lid is preferably one of the housing separate component.
  • the lid may be as well as the housing made of plastic.
  • the lid is in one piece.
  • the parts of the lid are preferably connected together integrally seamlessly.
  • the illumination module has an emission side in the emission direction of the light unit or the illumination module.
  • the lid is preferably arranged on the opposite side.
  • the lid may at least partially cover or shield the interior of the housing.
  • the fastener is a flexurally deformed fastener.
  • the fastener may be a flexurally deformed spring tongue or a bend-elastically deformed bracket.
  • the fastener may alternatively comprise, for example, an elastically deformed mat, or one or more pads or strips of elastically deformed material.
  • the fastener is attached to the lid. This facilitates the assembly of the lighting module.
  • the fastening element can also be fastened, for example, to the cooling element.
  • the fastening element is preferably seamlessly connected in one piece with the cover or the cooling element. Otherwise, it may for example be screwed, glued, welded or clamped to the cover or the cooling element. This is preferred Fastening element arranged such that it is elastically deformed when placing the lid on the housing when arranged in the housing carrier plate and the cooling element.
  • the lid defines a plane with at least one fastener disposed in the plane.
  • the lid may, for example, have a plate-shaped element, which is arranged oriented, for example, transversely to the emission direction.
  • the plane may be defined by such a plate-shaped element.
  • an opening or recess defining an opening edge may be provided in the plate-shaped member.
  • the opening edge encloses the opening.
  • spring tongues or spring clips may be arranged as fastening elements at the opening edge in the plane defined by the plate-shaped element. In this way, a compact design of the lighting module can be obtained.
  • a heat conducting layer is arranged between the cooling element and the carrier element. Unevennesses of the cooling element and of the carrier element can be compensated in particular by the heat-conducting layer in order to improve the heat transfer between the carrier element and the cooling element.
  • the heat-conducting layer may for example consist of solid, liquid or pasty material.
  • the heat conducting layer material can in the direction of the spring force, in particular the component transversely to the support surface, even at least slightly yielding or be elastic and deformed accordingly.
  • the heat-conducting layer may be, for example, a silicone layer, in particular a silicone film.
  • the heat-conducting layer is preferably non-adhesive at least on one side. Accordingly, the heat-conducting layer preferably does not impart any adhesive bond between the cooling element and the carrier element. Preferably, the connection between the cooling element and the carrier element is otherwise otherwise adhesive bond free. The cooling element can thus be arranged more easily on the carrier element already arranged in the housing.
  • the housing has a latching connection means and the cover has a counter-latching connection means for connecting the cover to the housing.
  • the latching connection means may be, for example, an opening or a recess in a housing wall.
  • the counter-latching connection means may be, for example, a latching arm in the sense of a resilient bar element or of an at least partially compliant lid frame with at least one latching lug.
  • the housing has an outer frame body which defines an interior of the housing.
  • the lighting module further comprises a support surface, which provides the support surface and which is arranged in the interior of the outer frame body.
  • the support surface is an inner frame body.
  • the support surface support and / or the support surface are in the embodiment in the transverse direction and / or the longitudinal direction, which span the support surface, preferably spaced from the outer frame body on opposite sides.
  • the support surface and / or the support surface in the transverse direction and / or the longitudinal direction of each outer wall of the outer frame body are spaced.
  • connection between the cooling element and the light unit and between the light unit and the support surface may be decoupled from the outer frame body.
  • Mechanical action on the outer frame body for example when inserting the lighting module in a recess of a kitchen cabinet or arranged on any other household appliance recess can thus be kept away from the connection between the cooling element, the light unit and the support surface.
  • the fastening device with the elastically deformed fastening element also offers in this embodiment, a certain tolerance to mechanical shock or movement.
  • parts or sections of the cover or an optical frame for fixing the light guide element to the housing may be arranged with existing spacing.
  • the bearing surface at least two planes are defined transversely to the support surface, which is the support surface limit across the levels.
  • the planes can abut the bearing surface at at least one point and / or along a line of the bearing surface.
  • the planes may be parallel to each other.
  • the planes define an intermediate region between the planes in which the bearing surface is arranged and a complementary outer region.
  • the carrier element preferably has a peripheral projection, which is arranged in the outer region.
  • a contact device can be arranged on the edge-side projection in the outer region, wherein the light unit can be electrically contacted on the contact device for operation.
  • the light unit can be contacted, for example, for feeding with electrical energy, largely without affecting the arrangement of the parts of the lighting module in the intermediate region.
  • a lighting module can be created in this way, which can be contacted in a particularly simple manner and also after the assembly of the lighting module.
  • At least two, in a particularly preferred embodiment, four planes are defined transversely to the support surface, which limit the support surface transverse to the planes for the support surface.
  • the bearing surface is preferably arranged between the planes, so that the planes bound the bearing surface to the outside.
  • Two planes are preferably parallel to each other.
  • Four levels may form two pairs of parallel opposing planes, with the pairs perpendicular to each other.
  • the fastening element and the cooling element are in this embodiment preferably exclusively at one or more contact points, For example, contact surfaces in contact, which are arranged between the planes at a distance from the planes. In this way, a particularly uniform pressing of the cooling element can be achieved on the support element.
  • the fastening element in particular a fastening element designed as a spring tongue, engages over the bearing surface.
  • the support surface bounds the contact point between the fastening element and the cooling element relative to the longitudinal and transverse extension direction of the support surface.
  • the contact point which is formed between the fastening element and the cooling element, also preferably arranged spaced in the longitudinal and / or transverse extension direction of the support surface of the support surface spaced.
  • a further developed according to at least one of these embodiments lighting module may have a particularly uniform contact of the cooling element to the support member.
  • the housing has an outer frame body with outer walls.
  • the outer walls are arranged transversely to the cooling element.
  • the cooling element is preferably spaced from at least one outer wall transverse to the outer wall.
  • the cooling element may be spaced, for example, from two opposite outer walls each transverse to the outer walls. More preferably, the cooling element is spaced from the outer frame body transversely to the outer walls.
  • the outer walls may be arranged transversely to the carrier element.
  • the support member is preferably spaced from at least one outer wall transverse to the outer wall.
  • the carrier element can be spaced, for example, from two opposite outer walls in each case transversely to the outer walls. Particularly preferably, the carrier element is arranged at a distance from the outer frame body transversely to the outer walls.
  • the housing has an outer frame body with outer walls and an inner frame body with inner walls.
  • the inner frame body is disposed between the outer walls.
  • the outer walls may be oriented transversely to the support surface and / or the support element of the light unit.
  • the inner walls can be oriented at least in sections transversely to the support surface and / or the support element.
  • the inner frame body is spaced from the outer frame body transversely to the emission direction of the light unit or the illumination module.
  • the inner frame body may be spaced from the outer frame body transversely to the outer walls.
  • a free space is defined between an inner wall and the opposite outer wall.
  • the transmission of mechanical vibrations or vibrations or mechanical forces e.g. be reduced to the arrangement of the cooling element and / or the support member when installing the lighting module.
  • portions or parts of the lid or an optical frame may be arranged due to the distance, for example.
  • the illumination module has a light guide element and an optical frame, wherein the light guide element is held between the optical frame and the housing.
  • the optical frame may be made of plastic or metal, for example.
  • the optical frame is attached to the housing with a fastener.
  • the fastening means is adapted to the the connection between the optical frame and the housing with already installed light unit, cooling element and lid can be made in or in the housing. Housing, light unit, cooling element and cover form a first functional part while the optical frame and the light guide form a second functional part, wherein the second functional part can be connected in this embodiment with the first functional part with already mounted first functional part.
  • the optical frame is connected to a latching connection means with the housing, wherein the latching connection means comprises a latching means and a counter-latching means.
  • the latching means and the counter-latching means are in and / or disengaged when assembled and possibly installed in the household appliance first functional part.
  • the optical frame is held exclusively with latching connection means on the housing.
  • the housing can for this purpose have latching connection means and the optical frame corresponding mating latching means.
  • the housing may for example have openings or recesses, for example in outer walls.
  • the optical frame may in this case have one or more latching arms each having one or more latching lugs.
  • the parts of the lighting module are connected to each other exclusively by positive and / or non-positive connections.
  • a lighting module further developed in accordance with at least one embodiment described above, installation or replacement of the optical frame and / or of the light-guiding element is also possible in the case of an assembled one first functional part particularly easy. Due to the fastening device according to the invention with an elastically deformed fastening means, the connection between the cooling element and the carrier element and the arrangement of the carrier element on the support surface remains largely unaffected even with mechanical action on the lighting module in subsequent installation of the optical part.
  • the second functional part can be provided in different forms, e.g. by the choice of different manufacturing materials for the optical frame, such as plastic or metal or stainless steel, or by different colors of the optical frame, e.g. by using correspondingly colored production materials, or by different nature of the externally visible surface of the optical frame when installed, e.g. by suitable surface treatment or surface structuring.
  • the use of different light-guiding elements can also be provided in order to be able to generate suitable light distribution as required.
  • Perspective illustrated lighting module 10 may be, for example, for use in a household appliance, in particular a kitchen household appliance, such as an extractor hood, set up.
  • the lighting module 10 has a housing 12, which consists for example of plastic.
  • the housing 12 may be made by an injection molding process.
  • the housing 12 is preferably opaque.
  • the housing 12 defines the interior of the housing 12 transversely to the main emission direction P, which is defined by the light source 14 or a light guide 16 and shields it to the outside.
  • the housing 12 has for this purpose an outer frame body 18, which in the exemplary embodiment has four outer walls 20 a-d and is cuboidal.
  • the housing 12 and in particular the outer frame body 18 may also have other basic shapes, e.g. be polyhedral or round.
  • the side from which the light exits the housing may be referred to as the underside 22 of the housing 12.
  • the housing 12 has for this purpose a corresponding outlet opening 28 on the underside 22.
  • a lid 30 is arranged, which shields the housing 12 upwards.
  • the lighting module 10 can be inserted in the direction in which the top 24, in a recess of a household appliance, not shown, for example, a cooker hood.
  • the housing 12 has a fastening means on the outer frame body 18, such as spring tabs 32 on.
  • the light-guiding element 16 and an optical frame 34 are arranged on the underside 22 of the housing 12, in particular as shown in FIGS FIGS. 1 and 4 to 6 is apparent.
  • the light-guiding element 16 conducts the light from the light source 14 and serves to establish the emission characteristic of the illumination module 10.
  • the light-guiding element 16 can determine a radiation direction of the illumination module 10 which is modified with respect to the main emission direction P of the light source 14.
  • FIG. 2 shows an embodiment of the housing 12 of the illumination module 10 according to the invention FIG. 1 in perspective view.
  • each inner wall 38 ad each have a flat wall portion 44 ad.
  • the flat wall section 44 ad may be arranged parallel to the outer wall 20 ad opposite the inner wall 38 ad.
  • Each inner wall 38 ad is connected via a curved wall portion of a connecting wall 42 and a transverse to the outer wall wall portion of the connecting wall 42 with the inner wall 38 ad opposite outer wall 20 ad ad.
  • the inner walls 38 ad each have a line-like or strip-shaped surface facing the spring force F of the elastically deformed spring tongues 72 ad.
  • the linear or strip-shaped surfaces of the inner walls together form a frame-shaped, planar, counter to the spring force-facing support surface 48.
  • the inner frame body 36 forms a support surface.
  • the support surface 48 may be continuous.
  • the support surface 48 may alternatively consist of non-contiguous sections. The sections may be in an extreme case, for example, virtually point-like.
  • the support surface 48 is spanned by a longitudinal direction LR and a transverse direction QR.
  • the bearing surface 48 is spaced apart from respective outer walls 20 ad in the transverse direction QR or in the longitudinal direction LR.
  • FIG. 6 are the levels 50 a and 50 c additionally indicated by a dashed line.
  • the support surface 48 is between the levels 50 ad arranged and the levels 50 ad limit the support surface 48 each transverse to the planes 50 ad.
  • an intermediate wall 52 is arranged and connected to the inner walls 38 a-d.
  • the intermediate wall 52 is offset relative to the support surface 48 in the main emission direction P of the light source 14.
  • the intermediate wall 52 includes an opening 54. In an alternative embodiment, this intermediate wall may not be present.
  • the opening 54 may be limited in such an embodiment of the inner walls 38 a-d.
  • the illumination module 10 has a carrier element 56, on which the light source 14 is arranged.
  • the carrier element 56 may be, for example, a printed circuit board 56.
  • the carrier element 56 rests on the support surface 48.
  • the support member 56 is spaced apart from the outer walls 20 ad of the outer frame body 18 transversely to the outer walls 20 ad.
  • the support member 56 has, as in FIG. 4 shown, a peripheral projection 58 in the longitudinal direction LR of the support surface 48 on the support surface 48 on.
  • the support member 56 has a protrusion 58 in a complementary outer region 60 to the intermediate portion 62 which is bounded outwardly by the planes 50 ad which define the support surface 48 to the outside.
  • the supernatant 58 may be adapted for electrical contact with the supply of the light source 14.
  • the peripheral projection 58 may be configured to receive a connector, for example a connector according to the raster connection technique (RAST).
  • RAST raster connection technique
  • a corresponding plug can be secured to the lid 30 with a snap lock 64.
  • the illumination module 10 can basically also have a plurality of carrier elements 56. On the support member 56 is, as in FIG. 4 can be seen, a single light source 14 is arranged. It is also possible for a plurality of light sources 14 to be arranged on a carrier element 56.
  • the light source 14 is preferably a light-emitting diode (LED). However, the light source 14 may, for example, also be a light source 14 with a filament.
  • the light source 14 is arranged in the illustrated embodiment in the opening 54 in the intermediate wall 52. In addition, the light source 14 is disposed between the inner walls 38 ad of the inner frame body 36.
  • a cooling element 66 is arranged.
  • the cooling element 66 is a component separate from the carrier element 56, the cover 30 and the housing 12.
  • the cooling element 66 is arranged in the housing 12 under the cover 30 under a cover recess 68. By means of the cover recess 68, ambient air can come into contact with the cooling element 66 and transport heat away from it.
  • a coherent cooling element 66 or a plurality of individual cooling elements 66 can be arranged in the illumination module 10.
  • the cooling element 66 is a rectangular plate in the exemplary embodiment.
  • the cooling element 66 may have a shape other than a rectangular basic shape.
  • the cooling element 66 may be made of aluminum, for example.
  • the cooling plate 66 is preferably free of ribs, but may also have cooling ribs, which may be arranged, for example, in the cover recess 68.
  • the cooling element 66 is respectively from the outer walls 20 ad of the outer frame body 18 transversely to the outer walls 20 ad spaced. Between the cooling element 66 and each outer wall 20 ad a clearance 40 ad is arranged.
  • the cooling plate 66 Between the cooling plate 66 and the carrier element 56 there is preferably a contact with as large a surface area as possible for heat transfer.
  • the cooling plate 66 either has direct contact with the carrier element 56 or between the cooling plate 66 and the carrier element 56 is a heat conducting layer 70 is arranged.
  • the heat conducting layer 70 may consist of thermal compound.
  • the heat-conducting layer is preferably a heat-conducting film 70.
  • the heat-conducting film 70 can be somewhat elastic and correspondingly in the direction of the spring force F by the spring tongues 72 on the heat-conducting film 70 itself be deformed.
  • the heat conducting film 70 may be electrically insulating.
  • the heat-conducting foil 70 is preferably non-adhesive at least on one side.
  • the heat-conducting film 70 may be, for example, a silicone film.
  • the arranged on the upper side 24 of the housing 12 lid 30 is in FIG. 3 also shown as a single part.
  • the lid 30 is a separate from the housing 12 component.
  • the parts of the lid 30 are preferably seamlessly connected together in one piece.
  • the lid 30 may be made of plastic, for example in an injection molding process.
  • the cover 30 may cover the interior IR of the housing 12 at least in sections. This is indicated by the lid 30, a cover plate 74 which defines a cover plane 76.
  • the cover plate 74 is preferably oriented transversely to the outer walls 20 ad. The cover plate 74 may rest on the outer walls 20 ad or be spaced therefrom.
  • the lid 30 also has a lid frame 78 which is disposed on the lid plate 74 between the outer walls 20 a-d.
  • locking arms 80 are arranged, which in turn carry latching lugs 82.
  • the locking lugs 82 engage in corresponding latching openings 84, which are arranged in the outer walls 20 a-d of the housing 12.
  • the cover plate 74 has one or more cover recesses 68 or openings which are arranged in the cover plane 76.
  • the lid recess 68 shown is rectangular.
  • a lid recess 68 may also have a shape deviating from the rectangular shape, e.g. be around.
  • the shape of the cover recess 68 preferably corresponds to the shape of the cooling element 66.
  • the spring tongues 72 ad preferably seamlessly connected in one piece.
  • the spring tongues 72 ad are arranged in the cover plane 76 on the recess edge 86 of the cover recess 68, which delimits the cover recess 68.
  • the spring tongues 72 ad each have a contact extension 88 ad. Via the contact extension 88 ad, the spring tongues 72 ad can be in contact with the cooling element.
  • the spring tongues 72 ad are on the contact extension 88 ad with the cooling element in direct or indirect contact. For example, an intermediate part can be arranged between the contact extension and the cooling element.
  • the spring tongues 72 ad are in contact with the cooling element 66 exclusively via the contact extensions 88 ad.
  • a contact extension 88 ad is preferably spherical segment-shaped, but may also have a different shape.
  • the contact extension 88 ad is arranged at a distance from the recess edge 86.
  • spring tongues 72 a-d instead of four spring tongues 72 a-d, for example, two spring tongues or even only one spring tongue can be sufficient for attachment.
  • one or more flexurally elastic brackets can also be arranged on the cover 30.
  • the brackets can be connected to the cover 30 at at least two points, preferably seamlessly in one piece.
  • the spring tongues 72 a-d or the bracket may alternatively be screwed, glued, welded or clamped to the lid 30, for example.
  • the detents 82 are brought into engagement with the detent openings 84.
  • the latching lugs 82 have latching contact surfaces 90.
  • the latching contact surfaces 90 can each with Rastumbleffe vom 92 in the detent openings 84 are in contact.
  • the latching contact surfaces 90 point in a direction counter to the spring force F exerting the elastically deformed fastening elements 72 ad on the support surface 48.
  • the latching contact surfaces 90 are at least slightly inclined relative to the direction of the spring force F.
  • the latching contact surfaces 90 are at least slightly inclined to the respective latching opening 84 pointing.
  • the spring tongues 72 ad are bending elastically deformed when the illumination module 10 is assembled and together exert a force F on the cooling element 66 and on the cooling element 66 also on the carrier element 56 for the light source 14 and on the support surface 48 for the carrier element 56 transversely to the support surface 48 ,
  • the spring tongues 72 are ad for each of their contact extensions 88 ad contact points 94 in contact with the cooling element 66th
  • the pads 94 are disposed between the planes 50 a-d defined by the four outer wall surfaces 50 a-d of the inner walls 38 a-d of the inner frame body 36, and spaced from the planes 50 a-d.
  • the contact points 94 are arranged on a central zone 96 of the cooling element 66.
  • the central zone is delimited by an edge zone 98 of the cooling element 66.
  • the contact points 94 are spaced from the edge zone 98 in the longitudinal direction LR and the transverse direction QR, which span the support surface 48.
  • the edge zone 98 may, for example, be arranged outside the four planes 50 a-d, which are defined by the four outer wall surfaces 50 a-d.
  • the central zone 96 may, for example, be arranged between the planes 50 a-d defined by the outer wall surfaces 50 a-d.
  • four levels 100 ad are defined for the support surface 48 by the inner wall surfaces 100 ad of the flat wall sections 44 ad of the inner walls 38 ad of the inner frame body 36, which are arranged transversely to the support surface 48 and set limits for the support surface frame 48 inward
  • FIG. 6 are the levels 100 a and 100 c additionally indicated by a dashed line.
  • the pads 94 are disposed between the four planes 100 defined by the inner wall surfaces 100 ad, spaced from the planes 100 ad.
  • the spring tongues 72 ad each overlap a portion of the support surface 48.
  • the contact points 94 are arranged relative to the longitudinal direction LR and transverse direction QR within the frame formed by the support surface 48.
  • the edge zone 98 may be arranged correspondingly outside the four levels 100 ad, which limit the bearing surface frame 48 inwardly.
  • connection between the housing 12, cover 30, cooling element 66 and support member 56 may be formed exclusively by a positive connection or exclusively by positive and non-positive connection.
  • the distances between the cooling element 66 and the outer walls 20 ad, the support member 56 and the outer walls 20 ad and the inner frame body 36 of the outer frame body 18 offer the advantage that mechanical stress of the outer frame body 18, for example when installing the lighting module largely of the Inside the housing 12 and in particular by the arrangement of the cooling element 66 and the support plate 56 can be kept on the support surface 48.
  • the fastening device with the elastically deformed fastening element 72 ad relatively rough tolerances of the components of the lighting module 10 and between the components can be compensated.
  • the fastening device also ensures that even with mechanical stress of the lighting module 10, the radiation characteristic of the lighting module 10 and a good heat transfer between the light unit 56, 14 and the cooling element 66 are maintained.
  • a portion of the lid 30 and / or an optical frame 34 may be arranged be. In this way, a compact lighting module 10 can be obtained.
  • the light-guiding element 16 by means of which the emission characteristic of the lighting module 10 can be fixed, is held between the optical frame 34 and the housing 12 by the optical frame 34, which is fastened to the housing 12.
  • the optical frame 34 and, correspondingly, the light-guiding element 16 are preferably connected exclusively to the housing 12 in a positive and / or non-positive manner.
  • Particularly preferred is the optical frame 34 on the housing 12 with a latching connection 102 (see in particular FIG. 7 ) attached.
  • the optical frame 34 may be made of steel or plastic, for example.
  • the housing 12, the carrier element 56 with the light source 14, the cooling element 66 and the cover 30, optionally with the heat-conducting layer 70, may be referred to as the first functional part of the lighting module.
  • FIG. 7 shows the first functional part and a second functional part of the lighting module with an optical frame 34 and a light guide 16 prior to installation in the housing 12.
  • the fastening means 102 is adapted for attachment of the second functional part with the first functional part, that the connection between the first functional part and the second functional part can also be produced and / or released even if the first functional part already assembled and possibly installed in the household appliance is already assembled.
  • the attachment means for attaching the optics frame 34 to the housing 12 is adapted to secure the attachment of the optics frame 34 to the housing 12 when already assembled and optionally with the home appliance connected first functional part functionally produced and / or can be solved.
  • the fastening means may be, for example, a latching connection means.
  • the fastening means comprises a latching means and a counter-latching means, wherein the latching means, for example a latching projection 104, on the optical frame 34 and the counter-latching means, for example a latching recess 106 for the latching projection, is arranged on the housing 12.
  • the fastening means is adapted to the latching means and the counter-latching means in and / or disengaged with already assembled and possibly installed in the household appliance first functional part.
  • the domestic appliance can have, for example, an access opening to the latching means 104 and / or to the counter-latching means 106.
  • the attachment of the second functional part for example technically inexperienced persons can be left.
  • the lighting module 10 is assembled, in which initially the housing 12 is provided and the carrier element 56 is placed on the support surface 48.
  • a heat-conducting layer 70 for example a silicone film, may already be arranged on the side of the carrier element 56 facing away from the light source 14.
  • a heat-conducting layer 70 can be arranged on the carrier element 56.
  • the cooling element 66 is provided. This is arranged on the carrier element 56.
  • the lid 30 is placed on the top 24 of the housing 12. Get advised the locking lugs 82 engage the respective detent openings 84 and the spring tongues 72 ad in contact with the cooling element 66, so that the spring tongues 72 ad are elastically deformed.
  • a lighting module 10 in particular for a domestic appliance, which has a housing 12, a light unit 14, 56 with a carrier element 56 and a light source 14, for example a light-emitting diode, and a cooling element 66 separate from the housing 12.
  • the lighting module 10 also has a fastening device 30, 48, 72 ad with a cover 30 for the housing 12, a support surface 48 for the support member 56 and at least one elastically deformed fastener 72 ad, which is effective between the cover 30 and the cooling element 66
  • the housing 12 includes an outer frame body 18 having outer walls 20 ad and an inner frame body 36 disposed between the outer walls 20 ad.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (14)

  1. Module d'éclairage (10), destiné en particulier à un appareil ménager, comportant
    un boîtier (12) destiné à recevoir un ensemble lumineux (14, 56),
    un ensemble lumineux (14, 56) comportant un élément de support (56) doté d'une source lumineuse (14),
    un élément de refroidissement (66) destiné au refroidissement de l'ensemble lumineux (14, 56),
    et un dispositif de fixation (30, 48, 72 a à d) destiné à l'élément de refroidissement (66) ainsi qu'à l'ensemble lumineux (14, 56),
    le dispositif de fixation (30, 48, 72 a à d) présentant un couvercle (30) qui est destiné au boîtier (12) et qui est relié au boîtier (12),
    une surface d'appui (48) destinée à l'élément de support (56),
    et au moins un élément de fixation (72 c à d) déformé élastiquement, qui agit entre l'élément de refroidissement (66) et le couvercle (30), en vue de pousser l'élément de refroidissement (66) contre l'élément de support (56),
    caractérisé en ce que l'élément de refroidissement (66) est un élément de refroidissement (66) séparé du boîtier (12) et
    en ce que le boîtier (12) présente un corps formant cadre extérieur (18) et un corps formant cadre intérieur (36), le corps formant cadre intérieur (36) procurant la surface d'appui (48) et un espace libre (40a à d) étant déterminé entre le corps formant cadre intérieur (36) et le corps formant cadre extérieur (18).
  2. Module d'éclairage (10) selon la revendication 1, l'élément de
    fixation (30, 48, 72 a à d) étant un élément de fixation (72 a à d) déformé élastiquement à la flexion en vue d'exercer une force de ressort sur l'élément de refroidissement (66).
  3. Module d'éclairage (10) selon l'une des revendications qui précèdent, l'élément de fixation (72 a à d) étant de préférence fixé au couvercle (30) en formant une seule pièce, sans joint.
  4. Module d'éclairage (10) selon l'une des revendications qui précèdent, le couvercle (30) déterminant un plan (76) et l'élément de fixation (72 a à d) étant disposé dans le plan (76).
  5. Module d'éclairage (10) selon l'une des revendications qui précèdent, une couche conductrice de la chaleur (70) étant disposée entre l'élément de refroidissement (66) et l'élément de support (56).
  6. Module d'éclairage (10) selon la revendication 5, l'élément de refroidissement (66) et l'élément de support (56) étant reliés, la liaison entre l'élément de refroidissement (66) et l'élément porteur (56) étant exclusivement une liaison par la forme et/ou une liaison par la force.
  7. Module d'éclairage (10) selon l'une des revendications qui précèdent, le boîtier (12) présentant un moyen de liaison par encliquetage (84) et le couvercle présentant un moyen de liaison par encliquetage antagoniste (80, 82) en vue de la liaison du couvercle (30) avec le boîtier (12).
  8. Module d'éclairage (10) selon l'une des revendications qui précèdent, la surface d'appui (48) destinée à l'élément de support (56) de l'ensemble lumineux (14, 56) étant en forme de bande.
  9. Module d'éclairage (10) selon l'une des revendications qui précèdent, le boîtier (12) présentant un corps formant cadre extérieur (18) qui détermine un espace intérieur (IR) du boîtier (12), et le module d'éclairage présentant un support de surface d'appui (36) comportant la surface d'appui (48), qui est disposé dans l'espace intérieur (IR) du corps formant cadre extérieur (18), la surface d'appui (48) s'étendant à partir d'une direction transversale (QR) et d'une direction longitudinale (LR) et la surface d'appui (48) étant disposée dans la direction transversale (QR) et/ou dans la direction longitudinale (LR) sur des côtés opposés avec un écart par rapport au corps formant cadre extérieur (18).
  10. Module d'éclairage (10) selon l'une des revendications qui précèdent, pour la surface d'appui (48) au moins deux plans (50 a à d, 100 a à d) étant déterminés transversalement à la surface d'appui (48), lesquels plans limitent la surface d'appui (48) transversalement aux plans (50 a à d, 100 a à d), l'emplacement de contact (94) avec lequel l'élément de fixation (72 a à d) et l'élément de refroidissement (66) sont en contact, étant disposé entre les plans (50 a à d, 100 a à d) avec un écart par rapport aux plans (50 a à d, 100 a à d).
  11. Module d'éclairage (10) selon l'une des revendications qui précèdent, le boîtier (12) présentant un corps formant cadre extérieur (18) comportant des parois extérieures (20 a à d), les parois extérieures (20 a à d) étant disposées transversalement à l'élément de refroidissement (66), l'élément de refroidissement (66) étant disposé à l'écart d'au moins une paroi extérieure (20 a à d) transversalement à la paroi extérieure (20 a à d), les parois extérieures (20 a à d) étant disposées transversalement à l'élément de support (56), l'élément de support (56) étant placé à l'écart d'au moins une paroi extérieure (20 a à d) transversalement à la paroi extérieure (20 a à d).
  12. Module d'éclairage (10) selon l'une des revendications qui précèdent, pour la surface d'appui (48) au moins deux plans (50 a à d) étant disposés transversalement à la surface d'appui (48), lesquels plans limitent la surface d'appui (48) transversalement aux plans (50 a à d), les plans (50 a à d) déterminant un espace intermédiaire (62) entre les plans et un espace extérieur complémentaire (60), l'élément de support (56) présentant une saillie (58) du côté du bord, dans l'espace extérieur (60).
  13. Module d'éclairage (10) selon l'une des revendications qui précèdent comportant un élément conducteur de la lumière (16) et un cadre optique (34), l'élément conducteur de la lumière (16) étant maintenu entre le cadre optique (34) et le boîtier (12) par le cadre optique (34), le cadre optique (34) et le boîtier (12) étant reliés par un moyen de fixation (102, 104, 106) qui est agencé en vue de réaliser la liaison entre le cadre optique (34) et le boîtier (12), l'ensemble lumineux (56, 17) étant déjà relié au boîtier (12), l'élément de refroidissement (66) et le couvercle (30).
  14. Appareil ménager comportant un module d'éclairage (10) selon une des revendications qui précèdent.
EP16201757.8A 2015-12-18 2016-12-01 Module d'éclairage Active EP3182002B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015122311.2A DE102015122311A1 (de) 2015-12-18 2015-12-18 Beleuchtungsmodul

Publications (2)

Publication Number Publication Date
EP3182002A1 EP3182002A1 (fr) 2017-06-21
EP3182002B1 true EP3182002B1 (fr) 2018-10-24

Family

ID=57471702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16201757.8A Active EP3182002B1 (fr) 2015-12-18 2016-12-01 Module d'éclairage

Country Status (2)

Country Link
EP (1) EP3182002B1 (fr)
DE (1) DE102015122311A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3834630A1 (de) * 1988-10-11 1990-04-12 Bosch Siemens Hausgeraete Leuchte zur anzeige des betriebs und zur gleichzeitigen beleuchtung eines bedienpults eines haushaltgeraets
EP1182396B1 (fr) 2000-08-22 2009-10-14 Koninklijke Philips Electronics N.V. Luminaire basé sur l'émission lumineuse de diodes électroluminescentes
FR2895785B1 (fr) * 2005-12-29 2015-08-28 Ambiance Lumiere Dispositif lumineux pour panneaux de signalisation
US8905577B2 (en) * 2009-02-12 2014-12-09 William Henry Meurer Lamp housing with clamping lens
JP5570331B2 (ja) * 2010-07-12 2014-08-13 株式会社小糸製作所 車両用灯具
DE102011086968A1 (de) 2011-11-23 2013-05-23 BSH Bosch und Siemens Hausgeräte GmbH Beleuchtungsmodul für ein Hauhaltsgerät
JP2014170638A (ja) * 2013-03-01 2014-09-18 Sharp Corp 照明装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3182002A1 (fr) 2017-06-21
DE102015122311A1 (de) 2017-06-22

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