EP2488789A2 - Lampe à diodes électroluminescentes - Google Patents

Lampe à diodes électroluminescentes

Info

Publication number
EP2488789A2
EP2488789A2 EP10785404A EP10785404A EP2488789A2 EP 2488789 A2 EP2488789 A2 EP 2488789A2 EP 10785404 A EP10785404 A EP 10785404A EP 10785404 A EP10785404 A EP 10785404A EP 2488789 A2 EP2488789 A2 EP 2488789A2
Authority
EP
European Patent Office
Prior art keywords
led lamp
lamp according
circuit board
base
pressfit
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
EP10785404A
Other languages
German (de)
English (en)
Other versions
EP2488789B1 (fr
Inventor
Thomas Preuschl
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 EP2488789A2 publication Critical patent/EP2488789A2/fr
Application granted granted Critical
Publication of EP2488789B1 publication Critical patent/EP2488789B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • 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
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • 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 is based on LED lamps according to the preamble of patent claim 1.
  • LED lamps which have a printed circuit board and a socket, which are electrically connected to each other via cable.
  • the cable must be quite expensive on the circuit board (eg soldered) be ⁇ consolidates and contacted.
  • the object of the present invention is to provide an LED lamp in which the mounting of an electrical connection of a printed circuit board with a socket is simplified.
  • an LED lamp with a base and with a first printed circuit board, in which at least one connector electrically connected to the base is provided, which is connected to the printed circuit board via a plug-in section.
  • This is a simplified compared to the prior art assembly of an electrical connection between the base and the circuit board created.
  • the plug-in section is accommodated in a recess of the printed circuit board, wherein a through-hole is arranged in the plug-in section.
  • the plug-in sections are characterized by a simple installation.
  • a second end section of the at least one pressfit connector is welded to the base or soldered or clamped. This creates an electrical and mechanical connection of the printed circuit board to the base.
  • the LED lamp its shape corresponds approximately to that of a conventional light bulb.
  • a retrofit lamp is provided which can be screwed into conventional sockets, whereby their efficiency or light output is improved.
  • the first circuit board is approximately circular.
  • the printed circuit board can be fitted with opti ⁇ painter size in the retrofit lamp.
  • a particularly preferred development of the LED lamp has two pressfit connectors, wherein the second end section of the first pressfit connector is fastened to a lower section of the socket and the second end section of the second pressfit connector is fastened to a lateral peripheral section of the socket.
  • a preferred development has a metal core printed circuit board on which a plurality of LEDs are mounted, and which is connected via two further pressfit connectors to the first circuit board.
  • an electrically insulating potting compound is accommodated in the base. Since ⁇ by extending in the interior of the socket press-fit connectors can be mutually electrically insulated. It is preferred if an electrical component is received in the potting compound. As a result, the electrical component can be fixed and is thereby electrically insulated against the pressfit connectors and against the base. It is preferred if the electrical component is an electrolytic capacitor or a resistor which is connected to the two Pressfit connectors.
  • the LED lamp has a guide pin formed from the potting compound. This can dip into a recess in the printed circuit board and serve as an anti-twist device for the printed circuit board.
  • the LED lamp has a heat sink made of metal or thermally conductive plastic ⁇ material in which a driver board is added.
  • heat can be dissipated from the LEDs and from the first circuit board and from the metal core circuit board.
  • the heat sink is Rotati ⁇ about onssymmetrisch, wherein at a first edge, a circumferential edge of a plastic piston is mounted, and wherein at a second edge of a circumferential edge of the solar ckels is attached.
  • the heat sink serves as ver ⁇ binding component between the lamp envelope and the base.
  • FIG. 1 a schematic representation of an LED lamp according to a first exemplary embodiment
  • Fig. 2 is a schematic representation of the base of
  • FIG. 3 in a schematic representation of the base of
  • Fig. 4 in a schematic representation of the base of
  • FIG. 5 shows a schematic representation of the LED lamp according to a fourth embodiment
  • FIG. 6 is a schematic representation of the LED lamp according to a fifth exemplary embodiment.
  • FIG. 1 schematically shows a perspective view of an LED lamp 1 according to a first exemplary embodiment.
  • This has a pear-shaped lamp bulb 2 with a base 4.
  • a base 4 Within the lamp piston 2 at least one LED 6 is arranged, wherein a plurality of LEDs 6 are provided.
  • the LED lamp 1 is preferably a so-called retrofit LED lamp. This is to correspond externally, for example, a her ⁇ conventional incandescent lamp, although serving no filament, but the energy-saving LEDs 6 as a light source.
  • the base 4 is for conventional versions, such as E14, E27 or GU10, out ⁇ forms.
  • an electrical contacting of a printed circuit board 8 of the LED lamp 1 with the base 4 takes place via plug connectors in the form of pressfit connectors 10, 12. These are indicated only schematically in FIG. 1 and are explained in more detail below in FIG.
  • the printed circuit board 8 is approximately plate-shaped and firmly held on a support 14. This has a Ba ⁇ sisabites 16, which is supported on an inner wall of an approximately cylindrical and the base 4 assigning piston portion 18 of the lamp bulb 2. From the cross ⁇ carrier 16 are two longitudinal chassis ger 20 which are for supporting the circuit board 8 mechanically fixedly connected thereto extending away from the socket. 4
  • the LEDs 6 are fixed on a side facing away from the base 4 side of a metal core circuit board 22, which just ⁇ if two Pressfit connectors 24, 26 with the Lei terplatte 8 is mechanically and electrically connected.
  • the Pressfit connectors 24, 26 are each pin-shaped and each have a press-in contact or plug-in section 28, which dips into an unillustrated passage bore of the printed circuit board 8 and force, material and / or positively fixed to this mechanically and electrically ,
  • a central portion of the pressfit connectors 24, 26 is performed through through holes of the metal core printed circuit board 22, wherein at each of the plug portions 28 facing away end portions of the pressfit connectors 24, 26, an anchor member 30 is formed.
  • This hin ⁇ ter shall be made at each of the plug portions 28 facing away end portions of the pressfit connectors 24, 26, an anchor member 30 is formed.
  • This hin ⁇ ter shall be made at each of the plug portions 28 facing away end portions of the pressfit connectors 24, 26, an anchor member 30 is formed.
  • the pressfit connectors 24, 26 are inexpensively manufactured as a stamped part.
  • the plug-in sections 28 are here formed ⁇ needle-needle-shaped, creating an elastic press-fit is created. Furthermore, the plug ⁇ portions 28 of the press-fit connectors 24, immersed in through holes of the printed circuit board 8 26 an overall ringeren diameter than the insertion portions 28 aufwei ⁇ sen, whereby they are substantially elastically deformed and having an elastic tension force in the Through hole are held.
  • FIG. 2 shows, in a schematic representation, the base 4 with the pressfit connectors 10, 12 from FIG. 1.
  • the axial extension of the press fit connectors 10, 12 is shown somewhat shortened for the sake of simplicity.
  • the press-fit connectors 10, 12 are designed as press-in pins mechanically rigid and each have a cantilevered away from the base 4 in plug portion 28.
  • the Steckab ⁇ sections 28 are respectively press-fit as that of the connectors 24, embodied in Figure 1 26th
  • the right in Figure 2 pressfit connector 12 extends approximately coaxially to a longitudinal axis of the base 4 to a lower base portion 32, where it is then welded, soldered or clamped for electrical and mechanical connection.
  • the left in the figure 2 press fit connector 10 is bent approximately L-shaped, wherein a first leg 34 extends approximately parallel to the Pressfit- connector 12 and a second leg 36 radially to a lateral peripheral portion 38 of the base 4 he ⁇ stretches. On an inside of the peripheral portion 38, the L-shaped press fit connector 10 is then welded, soldered or clamped for electrical and mechanical connection to the socket 4.
  • the staking portions 28 of the press-fit connectors 10, 12 are each non-positively in the figure 1 in a recess of the printed circuit board 8, material and / or form-fitting manner ⁇ immersed.
  • the pressfit connectors 10, 12 from FIG. 2 have an elongate recess in the form of a passage recess 40 at their plug-in section 28.
  • the plug-in portions 28 are elastically deformable, whereby certain manufacturing tolerances of the recesses of the printed circuit board 8 of Figure 1 are compensated.
  • a soldering or welding of the printed circuit board 8, for example, with live cables for contacting with the base 4 as in the prior art is no longer necessary.
  • the base 4 with the pressfit connectors 24, 26 is simply plugged onto the circuit board 8 by the Steckabschnit ⁇ te 28 are immersed in the recesses of the circuit board 8.
  • the pressfit connectors 12 and 10 are electrically contacted in the assembled state of the base 4 in a not shown version.
  • an electrically isolie ⁇ Rende potting compound 42 is introduced. This serves on the one hand for the electrical insulation of the press fit connectors 10, 12 to each other and on the other hand, with a certain mechanical rigidity, the pressfit connectors 10, 12 additionally mechanically support. The Pressfit connectors 10, 12 thereby collar from the potting compound 42 with the plug-in sections 28.
  • FIG. 4 illustrates a base 4 of an LED lamp according to the invention in accordance with a third exemplary embodiment.
  • An electrical component 44 is accommodated in the potting compound 42 in this case. This is an electrolytic capacitor or a resistor that is electrically and mechanically connected to the two Pressfit connectors 10, 12.
  • a guide pin 46 is additionally formed which extends out of the socket 4 approximately parallel to the pressfit connectors 10, 12.
  • the guide pin 46 has a greater axial length than the pressfit connectors 10, 12 and can immerse in the assembly of the printed circuit board 8 in a corresponding recess of the printed circuit board 8, whereby this is additionally supported and vercardgesi ⁇ chert.
  • FIG. 6 shows a schematic representation of the LED lamp 1 according to a fifth exemplary embodiment.
  • ⁇ arranged between the bulb 2 and the base 4, a heat sink as an annular sink element 52nd This consists of metal or a heat ⁇ conductive plastic.
  • the sink element 52 is used to Küh ⁇ development of the inner area of the LED lamp 1 and is approximately rotationally symmetrical body with a frusto-conical peripheral formed, pointing at a first, from the base 4 away, the edge 54 has a circumferential edge 56 of the in the figure 6 cylindrical lamp bulb 2 is attached.
  • the base 4 facing edge 58 of the sink member 52 of the base 4 is fixed.
  • the connection can also be made via a latch, for example via a plurality of latching lugs, or by perforation or crimping of the base 4, the sink element 52 and the lamp bulb 2.
  • a driver board (not shown) connected to the printed circuit board 8 of FIG. 1 or FIG. 5 is accommodated.
  • a driver board (not shown) connected to the printed circuit board 8 of FIG. 1 or FIG. 5 is accommodated.
  • a lamp bulb and two approximately diametrically arrange ⁇ te spring hooks may protrude on the base 4 approximately in the longitudinal direction a ⁇ access for holding the lamp bulb in corresponding recesses of the lamp bulb.
  • an LED lamp with a base and egg ⁇ ner first circuit board.
  • at least one electrically connected to the socket press fit connector is provided. This is connected via a plug-in section with the circuit board.

Landscapes

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

Abstract

L'invention concerne une lampe à diodes électroluminescentes équipée d'un socle et d'une première carte de circuit imprimé. Au moins un connecteur à insertion en force est relié électriquement au socle. Ce connecteur est relié à la carte de circuit imprimé par l'intermédiaire d'une section d'enfichage.
EP10785404.4A 2009-12-10 2010-11-29 Lampe à diodes électroluminescentes Active EP2488789B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009054519A DE102009054519A1 (de) 2009-12-10 2009-12-10 Led-Lampe
PCT/EP2010/068356 WO2011069848A2 (fr) 2009-12-10 2010-11-29 Lampe à diodes électroluminescentes

Publications (2)

Publication Number Publication Date
EP2488789A2 true EP2488789A2 (fr) 2012-08-22
EP2488789B1 EP2488789B1 (fr) 2019-01-09

Family

ID=43602820

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10785404.4A Active EP2488789B1 (fr) 2009-12-10 2010-11-29 Lampe à diodes électroluminescentes

Country Status (5)

Country Link
US (1) US9377185B2 (fr)
EP (1) EP2488789B1 (fr)
CN (1) CN102652242B (fr)
DE (1) DE102009054519A1 (fr)
WO (1) WO2011069848A2 (fr)

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CN103807623B (zh) * 2012-11-09 2017-11-17 欧司朗有限公司 发光装置和一种包括该发光装置的照明装置
CN103851572A (zh) * 2012-12-05 2014-06-11 王水妹 电灯及其灯座
US20140168978A1 (en) * 2012-12-17 2014-06-19 Wen-Sung Hu Full-Beam-Angle LED Bulb Structure
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Also Published As

Publication number Publication date
WO2011069848A2 (fr) 2011-06-16
EP2488789B1 (fr) 2019-01-09
US9377185B2 (en) 2016-06-28
DE102009054519A1 (de) 2011-06-16
CN102652242B (zh) 2016-05-11
CN102652242A (zh) 2012-08-29
US20120242226A1 (en) 2012-09-27
WO2011069848A3 (fr) 2011-11-10

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