EP3167224A1 - Lampe à semi-conducteur - Google Patents

Lampe à semi-conducteur

Info

Publication number
EP3167224A1
EP3167224A1 EP15721647.4A EP15721647A EP3167224A1 EP 3167224 A1 EP3167224 A1 EP 3167224A1 EP 15721647 A EP15721647 A EP 15721647A EP 3167224 A1 EP3167224 A1 EP 3167224A1
Authority
EP
European Patent Office
Prior art keywords
substrate
semiconductor
lamp
semiconductor lamp
heat sink
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.)
Granted
Application number
EP15721647.4A
Other languages
German (de)
English (en)
Other versions
EP3167224B1 (fr
Inventor
Thomas Weng
Stefan Ringler
Thomas Klafta
Marianne Auernhammer
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.)
Ledvance GmbH
Original Assignee
Osram 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 Osram GmbH filed Critical Osram GmbH
Publication of EP3167224A1 publication Critical patent/EP3167224A1/fr
Application granted granted Critical
Publication of EP3167224B1 publication Critical patent/EP3167224B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/233—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating a spot light distribution, e.g. for substitution of reflector lamps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/237—Details of housings or cases, i.e. the parts between the light-generating element and the bases; Arrangement of components within housings or cases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/238—Arrangement or mounting of circuit elements integrated in the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/69—Details of refractors forming part of the light source
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/101—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening permanently, e.g. welding, gluing or riveting
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
    • F21V23/005—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate is supporting also the light source
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
    • 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
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/508—Cooling arrangements characterised by the adaptation for cooling of specific components of electrical circuits
    • 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
    • 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
    • F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
    • 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
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/87—Organic material, e.g. filled polymer composites; Thermo-conductive additives or coatings therefor
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
    • F21V5/004—Refractors for light sources using microoptical elements for redirecting or diffusing light using microlenses
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • 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
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • 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 invention relates to a semiconductor lamp, comprising at least one semiconductor light source arranged on one side of a substrate and a driver circuit for driving the at least one semiconductor light source.
  • the invention is particularly applicable to retrofit lamps, in particular
  • Incandescent or halogen lamp retrofit lamps Incandescent or halogen lamp retrofit lamps.
  • a driver board is housed in a front open driver cavity of a housing.
  • the front is closed by means of serving as a heat sink metallic lid.
  • a carrier (“LED carrier”) equipped with light-emitting diodes (“LEDs”) is mounted on an outside of the heat sink.
  • Driver board and the LED carrier are thus designed as two separate components, which by means of various
  • Heatsink are electrically connected.
  • current connection methods there are hardly any simple or inexpensive methods for mechanical implementation of the electrical
  • FR4 boards can be used which also add cost and reduce thermal resistance from the LEDs to the heat sink only to a limited extent.
  • Driver circuit with associated semiconductor light sources in particular LEDs to provide a semiconductor lamp. It is still a specific object to provide a possibility for inexpensive heat dissipation of semiconductor light sources, in particular LEDs, a semiconductor lamp in a structurally simple and cost-effective manner. This object is achieved according to the characteristics of the independent
  • the object is achieved by a semiconductor lamp
  • the driver circuit is no longer on a separate from the substrate of the semiconductor light sources
  • Printed circuit board is fixed, the need for electrical connection between two carriers is eliminated, which significantly facilitates production. Also, a reduction of components for contacting (plug, cable, etc.) and thus a saving in the
  • the manufacturing process e.g., a combination of wave soldering and SMD soldering for such a populated
  • Substrate is comparable to manufacturing processes for all common two-sided boards and thus known, available and inexpensive. This in turn enables a saving of investment costs in special machines for eg laser soldering and / or a saving of manual workstations.
  • the previous contacting the driver board and the LED carrier is often a mechanical and
  • the driver circuit may have multiple electrical and / or
  • driver circuit All components of the driver circuit may be present, but some of the components may also be present on the front, in particular small and / or flat
  • resistors e.g. Thick film resistors.
  • Large components such as integrated circuits, capacitors,
  • Coils, electronic switches, etc. are preferably attached only to the back of the substrate.
  • Embodiment that all components of the driver circuit are present on the back.
  • LED light emitting diode
  • a color can be monochrome (e.g., red, green, blue, etc.) or
  • the multichromic e.g., white
  • the light emitted by the at least one light emitting diode an infrared light
  • IR-LED infrared light
  • UV-LED ultraviolet light
  • Several light emitting diodes can produce a mixed light; eg a white mixed light.
  • the at least one light-emitting diode can at least contain a wavelength-converting phosphor
  • the phosphor may alternatively or additionally be arranged away from the light-emitting diode
  • the at least one light-emitting diode can be in the form of at least one individually housed light-emitting diode or in the form of at least one LED chip. Several LED chips can be mounted on a common substrate (“submount").
  • the at least one light emitting diode may be equipped with at least one own and / or common optics for beam guidance, e.g. at least one Fresnel lens,
  • organic LEDs can generally also be used.
  • the at least one semiconductor light source may be e.g. have at least one diode laser.
  • the semiconductor lamp has, in particular at its rear end, a socket for the mechanical and electrical connection to a socket.
  • the socket may be inserted
  • the back side of the substrate may face toward the socket (face back) and the front face away from the socket (face forwards).
  • backward or “backward” may refer to a direction or orientation toward the socket.
  • front or “forward” may analogously be understood a direction or orientation away from the pedestal.
  • front or “forward” may mean a direction or orientation to a light emitting area. It is a continuing education that the
  • Semiconductor lamp has a longitudinal axis, which from a rear base area to a front
  • the substrate may be any suitable electrically insulating material.
  • base material e.g. conventional base material for circuit boards such as FR4, other plastic or ceramic.
  • a metal core board may be used.
  • the substrate may be at its front and / or on its back one
  • Conductive structure e.g., comprising at least one conductive trace and / or at least one contact patch.
  • components attached to the substrate may be attached by means of a bonding wire or the like. be electrically connected.
  • connection methods can be used. It is an embodiment that a heat sink or a
  • Heat sink rests flat on the front of the substrate. This is now possible because the heat sink is not more than
  • Partition wall between the driver board and the LED support needs to be provided. This refinement affords the advantage that the substrate on the side on which the semiconductor light sources are located is cooled by the heat sink, eliminates a thermal resistance through the substrate and binds the heat sink to the semiconductor light sources in a particularly effective manner.
  • Improved cooling connection also enables reduction of material (e.g., aluminum) in the lamp, thereby optimizing costs.
  • the improved cooling connection may also increase the service life, allow the use of less expensive components and / or waiving a
  • the heat sink may for example consist of ceramic or metal, for example aluminum. It is still a design that the heat sink
  • the heat sink may have further recesses, e.g. for other components, solder points and / or for the implementation of structural components such as legs etc.
  • the recesses generally allow a direct or with a very small gap connected support of the heat sink and thus a particularly low thermal resistance.
  • the heat sink is a shell-like heat sink with a plate-shaped bottom and an edge thereof angled outgoing edge, wherein the at least one recess for the at least one
  • Semiconductor light source is placed in the ground. Such a heat sink can be easily produced.
  • the heat sink is attached to the substrate by means of an adhesive heat-conducting layer, in particular adhered thereto.
  • the adhesive thermal conductive layer may e.g. a TIM ("Thermal Interface Material”) film.
  • the heat sink rests on a thermally good conductive gap filler on the front of the substrate. This may eliminate the need for recesses in the bottom (e.g., solder points) because the gap filler allows for a greater clearance between the heat sink and the front of the substrate.
  • the gap filler has a significantly higher thermal conductivity than conventional substrate materials. He likes e.g. consist of thermal grease.
  • the substrate is housed in a housing. This allows a Touch resistance and protection against mechanical and chemical stress.
  • the substrate may be non-positively fixed (e.g., by means of a press fit or interference fit) in the housing, positively and / or materially (e.g. It may be e.g. rest on the inside of the housing existing retaining tabs or on a stage of the housing.
  • the housing consists in particular of an electric
  • the housing may be formed in one or more parts.
  • the housing may in particular have a rearward base region, which together with at least one electrical contact element can form a base of the semiconductor lamp.
  • the socket may be, for example, an Edison socket or a bipin socket. It is also an embodiment that the housing
  • the side edge especially likes between retaining tabs and a rigid
  • Housing wall inserted, e.g. be trapped.
  • Holding tabs may carry the substrate on the top.
  • Side edge extends in particular to the rear. He may have one or more breaks to one
  • the driver circuit is surrounded in the housing by potting material. This improves heat dissipation to the housing since potting material has lower thermal resistance than air.
  • the driver circuit (and possibly outgoing lines, eg to the base) is so specially protected, for example against mechanical stress.
  • the potting material may be filled, for example, after the insertion of the loaded substrate into the housing. It is preferably filled to a maximum height of the substrate in order not to damage or cover the LED chips.
  • Feedthroughs are electrically connected by the substrate.
  • a substrate is particularly inexpensive.
  • a substrate provided with a conductive structure on both sides may be used.
  • the electrically conductive feedthrough may be a self-contained feedthrough, e.g. in the form of at least one
  • a conductive feedthrough may additionally or alternatively be referred to as a through-hole (also referred to as through-hole technology, THT, or pin-in-hole technology, PIH) pin.
  • THT through-hole technology
  • PIH pin-in-hole technology
  • an electrical or electronic component of the driver circuit may be formed. So the components of the driver circuit like
  • THT components whose pins or connecting pins, for example, through the substrate
  • the heat sink is followed by at least one optical element having rearwardly projecting legs or feet that extend through a respective recess in the bottom of the heat sink to the substrate. The legs allow a simple way of accurate positioning of the optical
  • Semiconductor light source may be e.g. serve as spacers.
  • the recesses may serve as alignment aids and as lateral guides.
  • the semiconductor lamp is a retrofit lamp. Such may be used instead of a conventional lamp without semiconductor light sources and therefore has in particular a base for
  • the retrofit lamp may e.g. an incandescent retrofit lamp, e.g. with an Edison base, e.g. Type E14 or E27. It may also be a halogen lamp retrofit lamp, e.g. with a biped base, e.g. of the type GU, e.g. GU10 or GU5.3.
  • Fig.l shows an exploded view in an oblique view of a semiconductor lamp according to a first
  • Figure 2 shows an exploded view in an oblique view of selected parts of the semiconductor lamp according to the first embodiment; 3 shows as a partial sectional view in
  • FIG. 4 shows a partial sectional view in FIG
  • Fig.l shows an exploded view in an oblique view of a semiconductor lamp 1 in the form of a halogen retrofit lamp.
  • Semiconductor lamp 1 has a housing 2 with a cup-like basic shape, which at its rear end a
  • Base area 3 has.
  • the housing 2 is shown here partially cut away.
  • the semiconductor lamp 1 has a front (the base area 3) forward (a
  • the base region 3 is used for mechanical attachment of the semiconductor lamp 1 in a conventional bipin socket
  • Semiconductor lamp 1 protrude from a rear end surface of the base portion 3, two metallic pins 4 backward, which together with the base portion 3 form a biped base of the semiconductor lamp 1, for example, of the type "GU", e.g. GU10.
  • the housing 2 is open at the front, wherein a substrate 6 can be inserted through a front opening 5.
  • the substrate 6 is here as a circular disk-shaped FR4 or CEM
  • Substrate formed as shown in more detail in Figure 2. At a front side 7 of the substrate 6 are more
  • LED chips 8 Semiconductor light sources arranged in the form of LED chips 8.
  • the LED chips 8 are connected to one another via contact fields 9 present on the front side 7.
  • the contact fields 9 consist of metallic layers, for example of copper, and together form a line structure.
  • On a rear side 10 of the substrate 6 are components 11 of a driver circuit for driving the LED chips 8
  • the substrate 6 is therefore a common substrate both for the LED chips 8 and for the components 11 of the driver circuit.
  • the front 6 and the back 10 of the substrate 6 are basically electrically isolated from each other.
  • An electrical connection of the components 11 of the driver circuit and the LED chips 8 is achieved by at least one electrically conductive passage (not shown) between the front 6 and the back 10 of the substrate 6.
  • the substrate 6 is provided on both sides with a respective line structure, which may each have one or more conductor tracks and / or contact pads.
  • the line structure here has four
  • LED chips 8 interconnect electrically in series. It is a particularly inexpensive variant that the substrate 6 only one-sided, e.g. here at the front 7, is provided with a respective line structure. An electrical connection of the components 11 of the back 10 may then be e.g. by means of the conductive bushing (s) with the
  • Line structure of the front 7 to be implemented This may be e.g. be done by the fact that the components 11 are configured as through-hole components,
  • the heat sink 12 has a shell-like basic shape surface, which is shown in more detail in Figure 2.
  • the heat sink 12 has a
  • the bottom 13 has recesses 15 for the LED chips 8 and further recesses 16, e.g. for by conductive
  • Feedthroughs produced projections on the front side 7 of the substrate 6.
  • 13 recesses 23 in the bottom for legs 22 available, as will be explained in more detail below.
  • the heat sink 12 is by means of an adhesive
  • Heat conducting layer 17 adhered to the substrate 6. This is a strong attachment at the same time low
  • the heat-conducting layer 17 has analogous holes or recesses 15a, 16a or 23a to the recesses 15, 16 and 23 of the bottom 13, as shown in more detail in FIG.
  • the heat conducting layer 17 may be e.g. when
  • a so-called gap filing may also be used, e.g. a so-called "gap pad", so that it is possible to dispense with recesses 16a for projections produced by conductive feedthroughs without too much increasing a thermal resistance.
  • the housing 2 is filled to the substrate 6 with a potting material 20, which thus surrounds the components 11.
  • the heat sink 12 is front of an optical
  • Lens element 21 is a common optic for the LED chips 8 and has a plurality of rear sides (here: three)
  • the legs 22 pass through recesses 23 in the bottom 13 of the heat sink
  • the lens element 21 is pressed by means of a retaining ring 24 in a rearward direction, so that it does not detach from the substrate 6.
  • the retaining ring 24 is in front of the
  • Lens element 21 is arranged and latched to an inner side of the housing 2 via latching hooks 25.
  • 3 shows the assembled semiconductor lamp 1 with a laterally cut housing 2.
  • Fig.4 shows the
  • the side edge 14 of the heat sink 12 is located with his
  • the heat sink 12 may be so clamped in the housing 2 are held.
  • the substrate 6 rests with an edge region of its rear side 10 on retaining tabs 26, which protrude from an inner side of the housing 2 to the front.
  • the retaining ring 24 closes the front practically
  • the lens element 21 has above each LED chip 8 on a rearwardly projecting lens-like light-collecting region 27.
  • the light-collecting region 27 may, for example, have a return with a convex bottom over a respective LED chip 8.
  • Lens element 21 on a field 28 of microlenses which further equalize the light emission.
  • the microlenses may in particular be convex, e.g. spherical, aspherical or pillow-shaped.
  • This semiconductor lamp 1 has only one joining direction, which keeps the manufacturing complexity of the entire platform at a low level.
  • the driver circuit with the Driver components 11 with an electrical supply signal (eg a mains voltage) supplied.
  • the driver circuit converts the electrical supply signal into an electrical operating signal suitable for operating the series-connected LED chips 8. This may for example be clocked and / or be adjustable in terms of its current level.
  • Operating signal may allow a dimmed operation of the LED chips 8.
  • Driver components 11 of the driver circuit are passed through the substrate 6 and are electrically connected to the local contact pads 9, the operating signal can be readily fed into the LED chips 8. The light then emitted by the LED chips 8 passes through the

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Led Device Packages (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

L'invention concerne une lampe à semi-conducteur (1) présentant au moins une source lumineuse à semi-conducteur (8) agencée au niveau d'une face avant (7) d'un substrat (6), et un circuit d'attaque (11) servant à activer la ou les sources lumineuses à semi-conducteur (8). Au moins une partie du circuit d'attaque (11) est fixée une face arrière (10) du substrat (6) opposée à la ou aux sources lumineuses à semi-conducteur (8). L'invention s'applique en particulier à des lampes de remplacement, en particulier des lampes de remplacement à incandescence ou halogènes.
EP15721647.4A 2014-07-09 2015-04-29 Lampe à semi-conducteur Active EP3167224B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014213388.2A DE102014213388A1 (de) 2014-07-09 2014-07-09 Halbleiterlampe
PCT/EP2015/059410 WO2016005069A1 (fr) 2014-07-09 2015-04-29 Lampe à semi-conducteur

Publications (2)

Publication Number Publication Date
EP3167224A1 true EP3167224A1 (fr) 2017-05-17
EP3167224B1 EP3167224B1 (fr) 2018-07-25

Family

ID=53175008

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15721647.4A Active EP3167224B1 (fr) 2014-07-09 2015-04-29 Lampe à semi-conducteur

Country Status (6)

Country Link
US (1) US10197223B2 (fr)
EP (1) EP3167224B1 (fr)
KR (1) KR101920480B1 (fr)
CN (1) CN106537024B (fr)
DE (1) DE102014213388A1 (fr)
WO (1) WO2016005069A1 (fr)

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DE102016203400A1 (de) * 2016-03-02 2017-09-07 Ledvance Gmbh Lichtmodul
DE102016203668A1 (de) * 2016-03-07 2017-09-07 Ledvance Gmbh Retrofitlampe
DE102016205521A1 (de) * 2016-04-04 2017-10-05 Osram Gmbh Lichtmodul für eine Leuchteinrichtung
CN110573791B (zh) 2017-05-02 2022-03-04 昕诺飞控股有限公司 照明装置和灯具
CN107394032B (zh) * 2017-07-25 2023-07-11 湖南粤港模科实业有限公司 一体化封装光源
DE102017116932B4 (de) 2017-07-26 2019-06-27 Ledvance Gmbh Leuchtvorrichtung mit Linse und Verfahren zu dessen Herstellung
DE102017116924B4 (de) 2017-07-26 2023-03-16 Ledvance Gmbh Leuchtmittel und Verfahren zum Herstellen eines Leuchtmittels
CN109838711A (zh) * 2017-11-24 2019-06-04 通用电气照明解决方案有限公司 一种灯
DE102019101559A1 (de) 2019-01-23 2020-07-23 Dr. Schneider Kunststoffwerke Gmbh Beleuchtungseinheit, beleuchtbares Bauteil und Verfahren zu dessen Herstellung
US11073252B2 (en) * 2019-03-26 2021-07-27 Xiamen Eco Lighting Co. Ltd. Light Bulb
CN113007616B (zh) * 2019-12-20 2023-06-20 深圳市聚飞光电股份有限公司 一种pcb灯板和背光模组
WO2023243588A1 (fr) * 2022-06-17 2023-12-21 株式会社小糸製作所 Module de source de lumière
CN116520650B (zh) * 2023-06-21 2023-09-15 张家港奇点光电科技有限公司 一种光刻机光源头组件

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DE102010001047A1 (de) * 2010-01-20 2011-07-21 Osram Gesellschaft mit beschränkter Haftung, 81543 Leuchtvorrichtung
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Also Published As

Publication number Publication date
US20170146199A1 (en) 2017-05-25
KR101920480B1 (ko) 2018-11-21
CN106537024B (zh) 2019-09-13
WO2016005069A1 (fr) 2016-01-14
CN106537024A (zh) 2017-03-22
KR20170037603A (ko) 2017-04-04
EP3167224B1 (fr) 2018-07-25
DE102014213388A1 (de) 2016-01-14
US10197223B2 (en) 2019-02-05

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