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WO2014072889A1 - Agencement d'éléments pour un dispositif d'éclairage - Google Patents

Agencement d'éléments pour un dispositif d'éclairage Download PDF

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Publication number
WO2014072889A1
WO2014072889A1 PCT/IB2013/059790 IB2013059790W WO2014072889A1 WO 2014072889 A1 WO2014072889 A1 WO 2014072889A1 IB 2013059790 W IB2013059790 W IB 2013059790W WO 2014072889 A1 WO2014072889 A1 WO 2014072889A1
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WO
WIPO (PCT)
Prior art keywords
components
coupling member
elongated body
component
hole
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.)
Ceased
Application number
PCT/IB2013/059790
Other languages
English (en)
Inventor
Reinier Imre Anton DE BOER
Vincent Stefan David Gielen
Antonius Adrianus Maria Marinus
Sait Izmit
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips NV
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 Koninklijke Philips NV filed Critical Koninklijke Philips NV
Publication of WO2014072889A1 publication Critical patent/WO2014072889A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F21V19/0035—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources the fastening means being capable of simultaneously attaching of an other part, e.g. a housing portion or an optical component
    • 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
    • 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
    • F21V29/506—Cooling arrangements characterised by the adaptation for cooling of specific components of globes, bowls or cover glasses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • 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
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/80—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with pins or wires
    • 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 generally relates to devices such as lighting devices.
  • the present invention relates to an arrangement of components for a device such as a lighting device.
  • Manufacturing of lighting devices such as light-emitting diode (LED) spot light assemblies or other devices including electrical components may require several steps of, for example, establishing electronic connections between components in the LED spot light assembly, and positioning and fixing the components within the LED spot light assembly, among other things.
  • LED light-emitting diode
  • Positioning the components within the device may require several steps which may be time-consuming and/or expensive.
  • Fixing the components within the LED spot light assembly may require glue or the like for fixing the components to each other and/or to the LED spot light assembly housing, etc.
  • the LED spot light assembly is to be recycled, e.g. disassembled for reusing at least some components in the LED spot light assembly, the disassembly of the components of the LED spot light assembly may be difficult due to them being fixed to each other by means of glue or the like.
  • a LED spot light assembly In order to provide a required capacity with regards to dissipation of excessive heat in the device, e.g. a LED spot light assembly, the heat for example being generated by operation of components such as LEDs, a LED current driver, etc., establishment of efficient thermal interfaces between some or all of the components in the LED spot light assembly may be required.
  • components such as heat sinks may be utilized.
  • there may be difficult to construct a LED spot light assembly so as to achieve a sufficient flow or spreading of heat within the LED spot light assembly that causes the heat to dissipate in the heat sink so as to achieve a required heat dissipation performance.
  • a concern of the present invention is to provide an arrangement of components for a device such as a lighting device, which arrangement of components facilitates or even enables an easier process of assembling the device during manufacture thereof compared to manufacturing of devices where the components of the device are fixed to each other with means such as glue or the like.
  • Another concern of the present invention is to provide an arrangement of components for a device such as a lighting device, which arrangement of components reduces or even eliminates the need for means such as glue or the like for coupling the components of the device with each other or for fixing the components of the device to each other.
  • Another concern of the present invention is to provide an arrangement of components for a device such as a lighting device, which arrangement of components is capable of providing an improved heat transport function and/or an increased heat dissipation capacity compared to known devices such as known lighting devices.
  • Another concern of the present invention is to provide an arrangement of components for a device such as a lighting device, which arrangement of components comprises means for coupling the components to each other, and which means at the same time provides means for electric interconnection of at least some of the components and/or facilitates or even enables thermal coupling between at least some of the components and possibly other elements in the device.
  • an arrangement of components for a lighting device comprising a plurality of components arranged relatively to each other so as to form at least a part of an assembly of interconnected components, and at least one coupling member which comprises an elongated body. At least one component of the plurality of components comprises at least one through- hole.
  • the elongated body of the at least one coupling member has such an extension, and the at least one component are arranged with respect to the other ones of the plurality of components and the at least one coupling member, such that a portion of the elongated body of the at least one coupling member extends within the at least one through-hole in the at least one component.
  • the elongated body of the at least one coupling member comprises at least one engaging member arranged so as to, when the portion of the elongated body of the at least one coupling member extends within the at least one through-hole in the at least one component, engage with a receiving surface of the at least one component so as to couple the at least one coupling member with the at least one component, such that movement of the at least one component relatively to the elongated body is impeded at least in a direction along the extension of the elongated body.
  • the receiving surface may comprise at least a portion of an inner wall of the at least one through-hole in the at least one component.
  • the through-hole and/or the inner wall may be arranged with means for protecting the through-hole and/or component against damage.
  • the through-hole and/or the inner wall may be plated.
  • the at least one component of the plurality of components may comprise a first surface portion, arranged on a first side of the at least one component, and a second surface portion, arranged on a second side of the at least one component, the second side being different from the first side, and the second surface portion comprising the receiving surface.
  • the at least one through-hole may extend from the first surface portion to the second surface portion.
  • the elongated body of the at least one coupling member may have an extension such that a portion of the elongated body extends past the end of the through-hole in the at least one component, wherein the at least one engaging member comprises a lateral projection having an engaging surface for engaging the second surface portion.
  • Each component of the plurality of components may comprise at least one through-hole, and wherein the at least one coupling member and the plurality of components are arranged relatively to each other such that corresponding through-holes in respective ones of the plurality of components are aligned and the elongated body of the at least one coupling member extends through a corresponding through-hole in each of the components in the at least a part of the assembly, wherein the elongated body of the at least one coupling member has an extension such that the elongated body of the at least one coupling member extends through all of the components in the at least a part of the assembly.
  • Such a configuration may facilitate or enable a relatively easy so called top- down assembly process for manufacturing of the device by means of the elongated body or bodies of the coupling member or members allowing or facilitating a relatively easy positioning of the components, e.g. a substrate such as a printed circuit board (PCB), a power module such as a light-emitting diode (LED) current driver, and a heat transferring means such as a heat sink and/or heat spreader, e.g. by inserting the elongated body or bodies through the through-hole or through-holes in the respective components so as to slide them into a stack of components.
  • the plurality of components may comprise at least two components.
  • a first component includes a substrate or board, e.g. a PCB, that supports at least one light-emitting element such as a LED and electronic equipment for conveying electrical current to the at least one light-emitting element, e.g. a LED current driver.
  • the substrate or board may provide mechanical fixation for the at least one light-emitting element and/or the electronic equipment.
  • the substrate or board may enable or facilitate electrical connection of the at least one light-emitting element and/or the electronic equipment to a power source.
  • a second component comprises heat transferring means such as a heat sink and/or heat spreader adapted to dissipate and/or absorb heat generated from operation of the at least one light-emitting element and/or the electronic equipment for conveying electrical current to the at least one light-emitting element.
  • heat transferring means such as a heat sink and/or heat spreader adapted to dissipate and/or absorb heat generated from operation of the at least one light-emitting element and/or the electronic equipment for conveying electrical current to the at least one light-emitting element.
  • the through-holes in the components may be plated.
  • the receiving surface may comprise at least a portion of an inner wall of the at least one through-hole in at least one of the components.
  • the inner wall may be plated.
  • Each component of the plurality of components may comprise a first surface portion, arranged on a first side of the component, and a second surface portion, arranged on a second side of the component, the second side being different from the first side, and the second surface portion comprising the receiving surface, wherein the at least one through- hole of the component extends from the first surface portion to the second surface portion,
  • the elongated body of the at least one coupling member may have an extension such that a portion of the elongated body extends past the end of the through-hole in at least one of the components, wherein the at least one engaging member comprises a lateral projection having an engaging surface for engaging the second surface portion.
  • the engaging member may comprise a crimping type of connection or coupling means.
  • the elongated body of the at least one coupling member may comprise a heat- conductive material, wherein the elongated body of the at least one coupling member is adapted to transfer heat from and/or to a component with which the at least one coupling member is coupled.
  • the coupling members may form thermal interfaces at the coupling between the coupling members and the components, so as to transfer or transport heat to and/or from a component, thereby forming an integrated heat transport path in the device.
  • the plurality of components may comprise a substrate adapted to support at least one light-emitting element.
  • the at least one light-emitting element may for example comprise at least one light-emitting diode (LED) or the like or any other suitable solid-state light-emitting element.
  • the arrangement may comprise an optical element arranged so as to receive at least a portion of the light emitted by the at least one light-emitting element and adapted to output light from the arrangement based on the received light.
  • the at least one coupling member, the plurality of components and the optical element may be arranged relatively to each other and the elongated body of the at least one coupling member may have an extension such that a portion thereof extends outside the at least a part of the assembly so as to thermally couple the elongated body of the at least one coupling member with the optical element, whereby heat generated from operation of the at least one light-emitting element can be transferred towards the optical element.
  • the arrangement may comprise a first heat transferring means thermally coupled with the optical element, wherein the at least one coupling member has an extension such that the portion thereof extending outside the at least a part of the assembly is contacting the first heat transferring means, wherein the first heat transferring means is adapted to dissipate heat conducted by the elongated body of the at least one coupling member.
  • the optical element may comprise at least one through- hole.
  • the at least one coupling member, the plurality of components, and the optical element may be arranged relatively to each other such that corresponding through-holes in respective ones of the plurality of components and the optical element are aligned and the elongated body of the at least one coupling member extends through a corresponding through-hole in each of the components in the at least a part of the assembly and a corresponding through-hole in the optical element.
  • the elongated body of the at least one coupling member may comprise an electrically conductive material so as to electrically couple the elongated body of the at least one coupling member with a component with which the at least one coupling member is coupled.
  • the plurality of components may comprise a substrate adapted to support at least one light-emitting element, a power module adapted to selectively convey electrical power to the at least one light-emitting element, and a second heat transferring means arranged between the substrate and the power module and adapted to dissipate and/or absorb heat generated from operation of the at least one light-emitting element and/or the power module.
  • the plurality of components may comprise a substrate, including at least one light-emitting element and a power module adapted to selectively convey electrical power to the at least one light-emitting element, and a second heat transferring means adapted to dissipate and/or absorb heat generated from operation of the at least one light-emitting element and/or the power module.
  • a lighting device comprising an arrangement of components according to the present invention.
  • a lighting fixture comprising at least one lighting device according to the present invention.
  • a lighting fixture comprising at least two lighting devices.
  • Each lighting device of the at least two lighting devices comprises an arrangement of components according to the present invention, wherein the at least one coupling member, the plurality of components, and the optical element are arranged relatively to each other such that corresponding through-holes in respective ones of the plurality of components and the optical element are aligned and the elongated body of the at least one coupling member extends through a corresponding through-hole in each of the components in the at least a part of the assembly and a corresponding through-hole in the optical element.
  • the elongated body of the at least one coupling member comprises a first end at least partly situated within the through-hole in the optical element and a second end, different from the first end and arranged so as to be accessible from the exterior of the lighting device.
  • the at least two lighting devices are arranged such that, for each lighting device, at least one of the first end and the second end of the elongated body of the at least one coupling member of the lighting device is coupled to the second end and the first end, respectively, of the elongated body of the at least one coupling member of another lighting device.
  • the term connected or coupled is not limited to be construed as directly connected, or directly coupled, but also encompasses functional connections having intermediate components.
  • an output of a first component is connected to an input of a second component, this comprises a direct connection.
  • an electrical conductor directly supplies an electrical signal from the output of the first component substantially unchanged to the input of the second component, alternatively via one or more additional components, the first and second component are also connected.
  • the connection is functional in the sense that a gradual or sudden change in the electrical signal from the output of the first component results in a corresponding or modified change in the signal that is input to the second component.
  • Fig. 1 is a schematic exploded sectional side view of a lighting device comprising an arrangement of components in accordance with an embodiment of the present invention
  • Fig. 2 is a schematic sectional side view of the lighting device shown in Fig. 1;
  • Fig. 3 is a schematic side view of elements in Fig. 2 in more detail in accordance with an embodiment of the present invention
  • Fig. 4 is a schematic side view of elements of a lighting device in accordance with an embodiment of the present invention.
  • Figs. 5-7 are schematic sectional side views of lighting devices each comprising an arrangement of components in accordance with embodiments of the present invention.
  • Fig. 8 is a schematic side view of lighting devices in accordance with an embodiment of the present invention.
  • Fig. 9 is a schematic block diagram of a lighting device comprising an arrangement of components according to an embodiment of the present invention.
  • Fig. 10 is a schematic block diagram of a lighting fixture according to an embodiment of the present invention.
  • FIG. 1 there is shown a schematic exploded sectional side view of a lighting device 100 comprising an arrangement of components 101, 102, 103 in accordance with an embodiment of the present invention.
  • the arrangement of components comprises a plurality of components 101, 102 and 103, including a substrate 101 adapted to support a plurality of light-emitting
  • the substrate 101 may for example comprise a printed circuit board (PCB) or the like which in addition to supporting light-emitting elements 104 may provide mechanical fixation for the light-emitting elements 104 and/or enable or facilitate electrical connection for the light-emitting elements 104 to a power source, as will be further described in the following.
  • the light-emitting elements 104 may for example comprise light-emitting diodes (LEDs) or the like or other suitable types of solid-state light-emitting elements. Although two light-emitting elements 104 are shown in Fig. 1, the present invention is not limited to this case but the substrate 101 may in principle include or hold any number of light-emitting elements 104, e.g. one, three, four, six, eight, ten or fifteen or more light-emitting elements.
  • the plurality of components 101, 102, 103 further includes a power module 103 adapted to selectively convey, supply or provide electrical power to the light- emitting elements 104 of the substrate 101.
  • the power module 103 may for example comprise an electrical current driver adapted to selectively convey electrical current to each of the light-emitting elements 104 during respective time intervals, which may be non- overlapping.
  • the plurality of components 101, 102, 103 further includes a heat transferring means 102 arranged between the substrate 101 and the power module 103.
  • the heat transferring means 102 is adapted to dissipate and/or absorb heat e.g. generated from operation of the light-emitting elements 104 and/or the power module 103.
  • the power module 103 may for example comprise an electrical current driver adapted to convey electrical current to the light-emitting elements 104.
  • the light-emitting elements 104 may for example comprise LEDs. Solid state light-emitting elements such as LEDs may require current limiting when driven from a voltage source. In many applications it is desirable to drive LEDs with a constant-current driver.
  • Such an electrical current driver can be used to regulate the current through the individual LEDs regardless of power supply variations, which e.g. may entail variations in output voltage of the power supply or changes in forward voltage drops between LEDs.
  • the lighting device 100 in Fig. 1 comprises three components 101,
  • the present invention is not limited to the case of three components but the number of components in the arrangement may in general be a plurality of components or at least two components, e.g. two, four, five, six, ten, or twelve or more components.
  • substrate any unit or element suitable for mechanically supporting and possibly electrically connecting electrical components, such as high-power semiconductor devices, microprocessors, LEDs and other devices that may require cooling due to heat generated during their operation.
  • a substrate could for example include a PCB and/or a so called L2 board.
  • heat transferring means should be interpreted broadly - in principle, the heat transferring means may refer to any thermally conductive component or element adapted to dissipate and/or absorb heat.
  • the heat transferring means may for example include a heat sink, a heat spreader and/or a thermal interface material (TIM) element.
  • the heat transferring means may for example comprise a metal sheet or layer or plate, or a sheet of layer of another material having a relatively high thermal conductivity.
  • the heat transferring means may advantageously comprise a sheet material of metal such as copper, a metal alloy such as an aluminum alloy, polymers, composites, and/or other suitable materials known in the art.
  • TIMs include thermal grease, such as silicone oil filled with aluminum oxide, zinc oxide, or boron nitride, thermally conductive compounds, elastomers, adhesive tapes, adhesive pads, liquid dispensed materials, and/or other suitable materials known in the art.
  • the number of components 101, 102, 103 in Fig. 1 is according to an example.
  • the number of components in the arrangement may be at least two.
  • the component 103 may be omitted.
  • the component 101 i.e. the substrate, may include or support a plurality of light-emitting elements 104 and a power module, e.g. an electrical current driver adapted to convey electrical current to the light-emitting
  • the lighting device 100 comprises a housing 105.
  • the arrangement of components comprises two coupling members 106, each comprising an elongated body 107.
  • each of the coupling members 106 comprises a flexible or non-rigid or compliant pin or beam.
  • each of the two coupling members 106 is crimped to the housing 105 as can be seen in the lower part of the housing 105 in Fig. 1.
  • housing 105 is provided with crimped contacts into which the elongated bodies 107 of the coupling members 106 are inserted.
  • crimping it is meant pinching or pressing together two elements, possibly so as to achieve a sealed, e.g. gas-tight, connection between the elements.
  • the coupling members 106 can be coupled to the housing 105 by means of being glued and/or "overmolded", etc., to the housing 105.
  • Each component 101, 102, 103 comprises two through-holes 108.
  • the present invention also encompasses the cases where each component 101, 102, 103 comprises a single through-hole, or three or more through-holes, or where only one or a few of the components comprise a through-hole or through-holes.
  • the number of coupling members may be the same as the number of through- holes arranged in each component.
  • the coupling members 106 are arranged in the lighting device 100 so as to permit positioning and sliding of the components 101, 102, 103 into an assembly 110 of interconnected components, as can be seen in Fig. 2, which is a schematic sectional side view of the lighting device 100 shown in Fig. 1 in an assembled state.
  • the positioning and sliding of the components 101, 102, 103 into the assembly 110 of interconnected components may be carried out by arranging the coupling members 106 and the components 101, 102, 103 relatively to each other such that corresponding through-holes 108 in respective ones of the components 101, 102, 103 are aligned and the elongated body 107 of the coupling member 106 extends through a corresponding through-hole 108 in each of the components 101, 102, 103 when the elongated bodies 107 of the respective coupling members 106 are inserted into the through-holes 108 as indicated in Figs. 1 and 2.
  • the elongated bodies 107 of the respective coupling members 106 each has an extension such that the elongated body 107 extends through all of the components 101, 102, 103.
  • At least some of the components 101, 102, 103 may each have at least one coupling surface portion adapted to couple the component 101, 102, 103 to another one of the components 101 , 102, 103.
  • each coupling member 106 comprises an engaging member 112.
  • the engaging member 112 is arranged so as to, when the elongated body 107 of the coupling members 106 extends within respective ones of the through-holes 108 in the components 101, 102, 103, respectively, engage with a receiving surface (not indicated by reference numeral in Figs. 1 and 2, see Fig.
  • the receiving surface is arranged on the substrate 101.
  • the engaging member 112 engages with the receiving surface, the assembly 110 is clamped or fastened together.
  • a receiving surface may be arranged on another one of the components 101, 102, 103 or even possibly on all or almost all or the components 101, 102, 103, which receiving surface or surfaces can be engaged by the engaging member 112,
  • the receiving surface comprises at least a portion of an inner wall of the through-hole 108 or though-holes 108 in the at least one of the components 101, 102, 103.
  • a wall or surface of the through-hole 108 or though-holes 108 which has a surface normal directed into the hollow portion of the component 101, 102, 103 formed by the through-hole 108 may be engaged by the engaging member 112 of the coupling member 106.
  • the engaging member 112 may for example comprise a resilient member such as a spring arrangement or element arranged to selectively and/or controllably exert a force against the receiving surface so as to couple the respective coupling member 106 with the at least one of the components 101, 102, 103 such that movement of the component 101, 102, 103 relatively to the elongated body 107 of the respective coupling member 106 is impeded at least in a direction along or substantially along the extension of the elongated body 107, and/or possibly in a direction perpendicular or substantially perpendicular to the extension of the elongated body 107.
  • a resilient member such as a spring arrangement or element arranged to selectively and/or controllably exert a force against the receiving surface so as to couple the respective coupling member 106 with the at least one of the components 101, 102, 103 such that movement of the component 101, 102, 103 relatively to the elongated body 107 of the respective coupling member 106 is impeded at least in a direction
  • the elongated body 107 of at least one of the coupling members 106 may comprise a heat-conductive material, wherein the elongated body 107 is adapted to transfer heat from and/or to a component 101, 102, 103 with which the at least one of the coupling members 106 is coupled.
  • the coupling member or members 106 may be arranged so as to augment or even create heat transport functionality in the lighting device 100, by means of thermal interfaces created by the coupling or couplings between components 101, 102, 103 and the at least one of the coupling members 106.
  • the elongated body 107 of at least one of the coupling members 106 may comprise an electrically conductive material so as to electrically couple the elongated body 107 with a component 101, 102, 103 with which the at least one of the coupling members 106 is coupled.
  • the coupling member or members 106 may be arranged so as to augment or even create an electrical conduction path in the lighting device 100.
  • the portions of the elongated bodies 107 of the coupling members 106 may be adapted to be connected to a power source, e.g. a mains outlet.
  • the lighting device 100 and/or the arrangement of components comprises an optical element 115 arranged so as to receive at least a portion of the light emitted by the at least one light-emitting element 104 and adapted to output light from the arrangement based on the received light.
  • the optical element 115 may for example comprise a lens and/or another type of light outcoupling structure, a reflector, collimation means, and/or a wavelength selective filter, etc. This list is not exhaustive.
  • the coupling members 106, the components 101, 102, 103 and the optical element 115 are arranged relatively to each other, and the respective elongated bodies 107 of the coupling members 106 have an extension such that a portion thereof extends outside the assembly 110 so as to thermally couple the respective elongated bodies 107 of the coupling members 106 with the optical element 115. In that way, heat generated for example from operation of the at least one light-emitting element 104 can be transferred towards the optical element 115 via the respective elongated bodies 107 of the coupling members 106.
  • the optical element 115 may act as a heat sink or heat spreader or provide a heat sink or heat spreader function, which may increase the overall heat dissipation capacity in the lighting device 100, which in turn may decrease the operating temperature of the light-emitting elements 104 and/or power module 103. This may in turn entail an increased lifetime of the light-emitting elements 104 and/or power module 103, and/or require a smaller number of light-emitting elements 104 for achieving a required or desired light output from the lighting device 100.
  • the coupling members 106 or the elongated bodies 107 of the coupling members 106 may be bent or curved, e.g. in an almost 90° angle or a 90° angle with respect to the overall extension of the elongated bodies 107, so as to achieve a surface coupling between a bent or curved portion 116 and the optical element 115.
  • the respective elongated bodies 107 of the coupling members 106 may be thermally coupled with the optical element 115 via a heat transferring means 118, e.g. a heat spreading layer or covering.
  • a heat transferring means 118 e.g. a heat spreading layer or covering.
  • the respective elongated bodies 107 of the coupling members 106 may be indirectly connected to the optical element 115 via a heat transferring means 118.
  • FIG. 3 there is shown a schematic side view of heat transferring means 118 and bent or curved portions 116 of the elongated bodies 107 of the respective coupling members 106 in accordance with an embodiment of the present invention, similarly to elements 118, 116, 107 and 106 depicted in Fig. 2.
  • FIG. 4 there is shown a schematic, in part sectional side view of an engaging member 112 of an elongated body 107 of a coupling member 106 in accordance with an embodiment of the present invention.
  • the receiving surface 120 of the component 101 comprises at least a portion of an inner wall of a through-hole 108 in the component 101.
  • a wall or surface of the through-hole 108 which has a surface normal directed into the hollow portion of the component 101 formed by the through-hole 108 may be engaged by the engaging
  • the wall or surface of the through-hole 108 having a surface normal directed into the hollow portion of the component 101 formed by the through- hole 108 may be plated, e.g. for protection of the component 101 and/or the through-hole 108 walls against damage.
  • the component 101 may for example comprise a PCB or the like and/or a so called L2 board.
  • the engaging member 112 comprises a resilient member constituted by a spring arrangement including two spring members which are arranged to selectively and/or controllably exert a force against the receiving surface 120 so as to couple the coupling member 106 with the component 101 such that movement of the component 101 relatively to the elongated body 107 of the coupling member 106 is impeded at least in a direction along or substantially along the extension of the elongated body 107, and/or possibly in a direction perpendicular or substantially perpendicular to the extension of the elongated body 107.
  • the diameter of the through-hole hole 108 may be smaller than the diagonal size of the elongated body 107 or non-rigid or flexible pin or beam 107.
  • the beam characteristics of the pin 107 may be chosen or designed so that a plastic, as well as an elastic, deformation takes place during the insertion of the two spring members of the engaging member 112 into the through-hole 108.
  • the two spring members may compress to different extents, e.g. in order to accommodate hole tolerances.
  • the non-rigidity or flexibility of the pin 107 may facilitate or even enable reducing strain on the component 101.
  • the elastic strain energy would possibly be stored entirely in the component 101, which might lead to damage of the through-hole 108.
  • the residual force of the elastic deformation may maintain stored energy to produce a tight contact zone between the pin 107 and the through-hole 108 walls. This may facilitate or even enable maintaining long-term electrical and mechanical reliability of the interconnection.
  • the engaging member 112 is not limited to the embodiments described with reference to Figs. 1-4.
  • An alternative or optional configuration is for example to crimp the coupling member 106 or elongated body 107 thereof onto one or more of the components 101, 102, 103 and/or onto the optical element 115 for facilitating or enabling achieving fixation and/or positioning of the components 101, 102, 103 into an assembly 1 10 of interconnected components.
  • Figs. 5-7 in which there are shown schematic sectional side views of lighting devices 100, each comprising an arrangement of components 101, 102, 103 in accordance with embodiments of the present invention.
  • the present invention also encompasses other alternative or optional configuration
  • FIG. 1-7 there are shown lighting devices 100 which each comprises an arrangement of components 101, 102, 103 in accordance with an embodiment of the present invention.
  • the arrangement of components 101, 102, 103 comprises a plurality of components 101, 102 and 103, including a substrate 101 adapted to support a plurality of light-emitting elements 104, a power module 103 adapted to selectively convey, supply or provide electrical power to the light-emitting elements 104 of the substrate 101, and includes a heat transferring means 102 arranged between the substrate 101 and the power module 103.
  • the heat transferring means 102 is adapted to dissipate and/or absorb heat e.g. generated from operation of the light-emitting elements 104 and/or the power module 103.
  • the lighting device 100 comprises a housing 105.
  • the present invention is not limited to this case but the substrate 101 may in principle include or hold any number of light-emitting elements 104, e.g. one, three, four, six, eight, ten or fifteen or more light-emitting elements.
  • the lighting devices 100 described with reference to Figs. 5-7 each comprise three components 101, 102, 103, the present invention is not limited to the case of three components but the number of components in the arrangement may in general be a plurality of components or at least two components, e.g. two, four, five, six, ten, or twelve or more components.
  • the arrangement of components 101, 102, 103 comprises two coupling members 106, each comprising an elongated body 107.
  • each of the coupling members 106 comprises a flexible or non-rigid or compliant pin or beam.
  • each of the two coupling members 106 is crimped to the housing 105, see the lower part of the housing 105 in Figs. 5-7, respectively.
  • the coupling members 106 can be coupled to the housing 105 by means of being glued and/or "overmolded", etc., to the housing 105.
  • the component 103 comprises two through-holes 108.
  • the present invention also encompasses the cases where the component 103 comprises a single through-hole or three or more through- holes.
  • the number of coupling members may be the same as the number of through-holes arranged in the component.
  • the coupling members 106 are inserted into the through-holes 108 and crimped to the power module 103.
  • the power module 103 may e.g. include an electrical current driver adapted to selectively convey electrical current to each of the light-emitting elements 104 during respective time intervals, which may be non- overlapping.
  • through-holes in the components 101 and 102 may not be required.
  • At least one of the components 101, 102, 103 may comprise a first surface portion, arranged on a first side of the at least one of the components 101, 102, 103, and a second surface portion, arranged on a second side of the at least one of the components 101, 102, 103, with the second side being different from the first side.
  • the first side of the component 103 is the lower surface of the component 103, having a surface normal directed downwards in Fig. 5
  • the second side of the component 103 is the upper surface of the component 103, having a surface normal directed upwards in Fig. 5.
  • the second surface portion comprises the receiving surface.
  • the through-hole 108 or through-holes 108 extend from the first surface portion to the second surface portion.
  • the elongated bodies 107 of the respective coupling members 106 each have an extension such that portions of the elongated bodies 107 extend past the end of the respective through-holes 108 in the component 103.
  • the respective engaging members 112 of the elongated bodies 107 each comprises a lateral projection having an engaging surface for engaging the second surface portion.
  • a lighting device 100 similar to the lighting device 100 in Fig. 5, but where the components 102 and 103 as well as
  • component 101 comprise respective through-holes 108.
  • the components 101, 102, 103 and the coupling members 106 are arranged relatively to each other so that the respective elongated bodies 107 of the coupling members 106 extend through corresponding through- holes 108 in the components 101, 102, 103, and the coupling members 106 are crimped to the uppermost surface of component 101 or substrate 101.
  • the number of components 101, 102, 103 in Fig. 6, and/or Figs. 5 or 7, is according to an example.
  • the number of components in the arrangement may be at least two.
  • the component 103 may be omitted.
  • the component 101 i.e. the substrate, may include or support a plurality of light-emitting elements 104 and a power module, e.g. an electrical current driver adapted to convey electrical current to the light-emitting
  • the coupling members 106 are crimped to the uppermost surface of component 101, e.g. by the uppermost surface of component 101 being provided with crimped contacts into which the elongated bodies 107 of the coupling members 106 are inserted.
  • a lighting device 100 similar to the lighting device 100 in Fig. 5, but where the components 102 and 103 as well as
  • component 101 comprise respective through-holes 108.
  • the components 101, 102, 103 and the coupling members 106 are arranged relatively to each other so that the respective elongated bodies 107 of the coupling members 106 extend through corresponding through- holes 108 in the components 101, 102, 103.
  • the coupling members 106 are crimped to the uppermost surface of component 103 or power module 103.
  • the optical element 115 comprises two through-holes 108.
  • the coupling members 106, the components 101, 102, 103 and the optical element 115 are arranged relatively to each other such that corresponding through-holes 108 in respective ones of the components 101, 102, 103 and the optical element 115 are aligned and the respective elongated bodies 107 of the coupling
  • a lighting device configuration as illustrated in Fig. 7 may provide a relatively high robustness with respect to manufacturing tolerances.
  • the component 103 may be omitted.
  • the component 101 i.e. the substrate, may include or support a plurality of light-emitting elements 104 and a power module, e.g. an electrical current driver adapted to convey electrical current to the light-emitting elements 104.
  • a power module e.g. an electrical current driver adapted to convey electrical current to the light-emitting elements 104.
  • the coupling members 106 are crimped to the uppermost surface of component 101, e.g. by the uppermost surface of component 101 being provided with crimped contacts into which the elongated bodies 107 of the coupling members 106 are inserted.
  • Fig. 8 is a schematic side view of two lighting devices 100 in accordance with an embodiment of the present invention.
  • At least the lowermost lighting device 100 of the lighting devices 100 shown in Fig. 8 is configured according to the embodiment described with reference to Fig. 7.
  • the elongated body of each of the coupling members comprises a first end, at least partly situated within a corresponding through- hole in the optical element, and a second end, different from the first end and arranged so as to be accessible from the exterior of the lighting device 100 or from the outside of a housing of the lighting device 100.
  • the first end of the respective elongated bodies of the coupling members is coupled to respective second ends of the elongated bodies of the coupling members of the uppermost lighting device 100 in Fig. 8.
  • each lighting device is configured according to the embodiment described with reference to Fig. 7.
  • the elongated body of at least one coupling member comprises a first end, at least partly situated within the through-hole in the optical element, and a second end, different from the first end and arranged so as to be accessible from the exterior of the lighting device.
  • the at least two lighting devices are arranged such that, for each lighting device, at least one of the first end and the second end of the elongated body of the at least one coupling member of the lighting device is coupled to the second end and the first end, respectively, of the elongated body of at least one coupling member of another lighting device of the at least two lighting devices.
  • FIG. 9 there is shown a schematic block diagram of a lighting device 100 comprising an arrangement 150 of components 101, 102, 103, 104 according to an embodiment of the present invention.
  • the lighting fixture 200 comprises a lighting device 100 according to an embodiment of the present invention.
  • the lighting fixture 200 may comprise more than one lighting device 100.
  • the arrangement comprises a plurality of components arranged relatively to each other so as to form at least a part of an assembly of interconnected components, and at least one coupling member comprising an elongated body.
  • At least one component of the plurality of components comprises at least one through-hole.
  • the elongated body of the at least one coupling member has such an extension, and the at least one component is arranged with respect to the other ones of the plurality of components and the at least one coupling member, such that a portion of the elongated body of the at least one coupling member extends within the at least one through-hole in the at least one component.

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

Abstract

L'invention porte sur un agencement d'éléments (101, 102, 103) pour un dispositif d'éclairage (100). L'agencement comprend une pluralité d'éléments (101, 102, 103) disposés de façon relative les uns par rapport aux autres de façon à former au moins une partie d'un ensemble (110) d'éléments interconnectés, et au moins un organe d'accouplement (106) comprenant un corps allongé (107). Au moins un élément (101, 102, 103) de la pluralité d'éléments (101, 102, 103) comprend au moins un trou traversant (108). Le corps allongé (107) du ou des organes d'accouplement (106) a une extension telle, et le ou les éléments (101, 102, 103) sont agencés de telle sorte par rapport aux autres de la pluralité d'éléments (101, 102, 103) et au ou aux organes d'accouplement (106), qu'une partie du corps allongé (107) du ou des organes d'accouplement (106) s'étend à l'intérieur du ou des trous traversants (108) dans le ou les éléments (101, 102, 103).
PCT/IB2013/059790 2012-11-07 2013-10-30 Agencement d'éléments pour un dispositif d'éclairage Ceased WO2014072889A1 (fr)

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US201261723351P 2012-11-07 2012-11-07
US61/723,351 2012-11-07

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DE102014222512A1 (de) * 2014-11-04 2016-05-04 Osram Gmbh Befestigen eines Drahts einer Leuchtvorrichtung
WO2016150702A1 (fr) * 2015-03-24 2016-09-29 Osram Gmbh Lampe et procédé de fabrication
JP2017174568A (ja) * 2016-03-22 2017-09-28 パナソニックＩｐマネジメント株式会社 光源ユニット及び照明器具
DE102017113872A1 (de) * 2017-06-22 2018-12-27 Trilux Gmbh & Co. Kg LED-Anordnung
BE1030178B1 (fr) * 2023-01-11 2024-08-06 Peeters Cedric Ampoule empilable

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US20020172040A1 (en) * 2001-03-10 2002-11-21 Karl Jautz Illuminated display column
US20050024875A1 (en) * 2003-07-31 2005-02-03 Zhang Long Bao Light source with heat transfer arrangement
US20060227558A1 (en) * 2005-04-08 2006-10-12 Toshiba Lighting & Technology Corporation Lamp having outer shell to radiate heat of light source
JP2009093926A (ja) * 2007-10-09 2009-04-30 Nichia Corp Ｌｅｄ電球
US20090185373A1 (en) * 2007-11-19 2009-07-23 Zdenko Grajcar Apparatus and method for thermal dissipation in a light
JP2010153377A (ja) * 2008-11-26 2010-07-08 Yamazaki Kyoiku System Kk 学校教材用電気スタンドキット
US20110211351A1 (en) * 2010-02-12 2011-09-01 Cree, Inc. Lighting devices that comprise one or more solid state light emitters
CN102364240A (zh) * 2011-11-08 2012-02-29 山西光宇半导体照明有限公司 一种灯体的连接方法

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Publication number Priority date Publication date Assignee Title
US4103321A (en) * 1976-01-13 1978-07-25 Robert Bosch Gmbh Composite electric circuit structure of a printed circuit and heat generating discrete electrical component
US20020172040A1 (en) * 2001-03-10 2002-11-21 Karl Jautz Illuminated display column
US20050024875A1 (en) * 2003-07-31 2005-02-03 Zhang Long Bao Light source with heat transfer arrangement
US20060227558A1 (en) * 2005-04-08 2006-10-12 Toshiba Lighting & Technology Corporation Lamp having outer shell to radiate heat of light source
JP2009093926A (ja) * 2007-10-09 2009-04-30 Nichia Corp Ｌｅｄ電球
US20090185373A1 (en) * 2007-11-19 2009-07-23 Zdenko Grajcar Apparatus and method for thermal dissipation in a light
JP2010153377A (ja) * 2008-11-26 2010-07-08 Yamazaki Kyoiku System Kk 学校教材用電気スタンドキット
US20110211351A1 (en) * 2010-02-12 2011-09-01 Cree, Inc. Lighting devices that comprise one or more solid state light emitters
CN102364240A (zh) * 2011-11-08 2012-02-29 山西光宇半导体照明有限公司 一种灯体的连接方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014222512A1 (de) * 2014-11-04 2016-05-04 Osram Gmbh Befestigen eines Drahts einer Leuchtvorrichtung
WO2016150702A1 (fr) * 2015-03-24 2016-09-29 Osram Gmbh Lampe et procédé de fabrication
JP2017174568A (ja) * 2016-03-22 2017-09-28 パナソニックＩｐマネジメント株式会社 光源ユニット及び照明器具
DE102017113872A1 (de) * 2017-06-22 2018-12-27 Trilux Gmbh & Co. Kg LED-Anordnung
BE1030178B1 (fr) * 2023-01-11 2024-08-06 Peeters Cedric Ampoule empilable

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