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EP2342493B1 - Anordnung von lampenfassung und lampensockel - Google Patents

Anordnung von lampenfassung und lampensockel Download PDF

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Publication number
EP2342493B1
EP2342493B1 EP10739470.2A EP10739470A EP2342493B1 EP 2342493 B1 EP2342493 B1 EP 2342493B1 EP 10739470 A EP10739470 A EP 10739470A EP 2342493 B1 EP2342493 B1 EP 2342493B1
Authority
EP
European Patent Office
Prior art keywords
socket
contact
contacts
base
heat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP10739470.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2342493A1 (de
Inventor
Karl-Wilhelm Vogt
Markus Pieper
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.)
BJB GmbH and Co KG
Original Assignee
BJB GmbH and Co KG
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 BJB GmbH and Co KG filed Critical BJB GmbH and Co KG
Publication of EP2342493A1 publication Critical patent/EP2342493A1/de
Application granted granted Critical
Publication of EP2342493B1 publication Critical patent/EP2342493B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • 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
    • 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
    • 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
    • F21V19/04—Fastening of light sources or lamp holders with provision for changing light source, e.g. turret
    • 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
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • F21V29/763—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/6205—Two-part coupling devices held in engagement by a magnet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/05—Two-pole devices
    • H01R33/46—Two-pole devices for bayonet type base
    • 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
    • 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
    • F21V17/105—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 using magnets
    • 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 lamp holder for holding a light source provided with an LED, according to the preamble of claim 1, claim 3 or claim 4.
  • a comparable combination of lamp base and lamp socket is off DE 10 2007 041 126 A1 known.
  • the lamp base there can be fixed by means of a bayonet-type locking in a socket housing. Laterally projecting socket contacts engage in recess on the recess side.
  • a heat sink in the socket bottom is used to dissipate the heat generated during operation of an LED.
  • a source stone light is off DE 20 2007 012 249 U1 known. This also has neither a socket-side heat sink, nor a socket-side heat-conducting. Also missing is a device by means of which a pressure force between a socket and a socket is generated.
  • comparable lampholders are known from the prior art document which can not be assigned by reference. They are usually based on the design of compact fluorescent lamp sockets and - lamp sockets, in which the lamp base is inserted into the socket and fixed in a bayonet by a rotary motion. In contrast to fluorescent tubes, these types of construction are referred to as so-called “one-sided" socketed systems. By the rotation In addition, socket and socket contacts are connected together and the lamp is electrically contacted. This locking principle is also known as a twist-lock system.
  • lamp holders in particular for light sources provided with LEDs, are also known from another prior art document which can not be documented, in which case the socket is inserted parallel to the surface of a heat sink, whereby this process also involves the electrical contacting.
  • LED-based bulbs The lifetime of LED-based bulbs, however, depends crucially on an optimal dissipation of the heat generated during operation of the LED. LEDs are particularly sensitive to temperature.
  • generic lamp sockets have a heat-conducting element which comes into contact with a socket-side heat sink. It has been recognized that a certain system pressure between the heat-conducting element and the heat sink positively influences the heat transfer.
  • frames and sockets for a light source provided with at least one LED are distinguished by the fact that, in addition to the mechanical support and the electrical contact, the best possible heat dissipation must be ensured.
  • the socket and socket for LED bulbs differ significantly in terms of structural and design requirements of their counterparts for compact fluorescent lamps.
  • the object of the invention is to provide a lamp socket and a lamp cap, which ensure a uniformly distributed system pressure on the mutual contact surface of the heat conducting element and heat sink.
  • the object of the invention is achieved by a lamp holder and a lamp base with the features of claim 1, claim 3 or claim 4, in particular with their characterizing features.
  • the invention makes use of the knowledge that even small force components, which are directed counter to the contact pressure ensuring the contact pressure, considerably change the pressure distribution. On this basis, the invention avoids the skillful training of socket and socket contacts or their storage in the socket housing or on the lamp socket electrical contact, in which the contact forces are directed against the pressing force. Furthermore, a socket-side heat-conducting element is provided in addition to the socket-side heat sink, which is connected to the LED. A device for ensuring a defined system pressure between the heat-conducting element and heat sink ensures optimal heat transfer from the socket to the socket.
  • socket contacts as projecting from the base in the direction of the heat sink contacts, in particular are formed as contact pins, wherein the contact force between the socket contacts and the socket contacts is directed transversely to the effective direction of the pressing force.
  • the socket contacts are designed as contact clips which hold the socket contacts, in particular the contact pins between two contact legs. It is particularly advantageous that the socket contacts between them receiving contact clips ensure a secure electrical contact.
  • Another solution is characterized in that the base contacts as laterally projecting from the base circumference, in particular transversely oriented to the effective direction of the pressure force contacts, such as flat blade contacts, and the contact forces between the socket contacts and the socket contacts are the same direction to the pressing force. Assuming a uniform distribution of the flat blade contacts with regard to the base circumference, a uniform contact pressure of the mutual contact surfaces of the heat-conducting element and the heat sink is not adversely affected by this embodiment.
  • the socket contacts are formed as a contact clip, which receive the socket contacts, in particular the flat blade contacts between them and the contact forces of the socket contacts receiving between them contact legs are opposite to each other and parallel to the action Pressure force are aligned, wherein the socket contacts are mounted parallel to the effective direction of the pressing force floating in the socket housing and / or the socket contacts are mounted parallel to the effective direction of the pressing force floating in the lamp base.
  • socket or socket-side contact fields are formed, which bear against socket or socket contacts, wherein the contact forces are directed transversely to the effective direction of the pressing force.
  • an arrangement of lamp socket and lamp base is generally designated by the reference numeral 10.
  • the lamp holder 11 which initially has a heat sink 12, on which a socket housing 13 is arranged, which carries socket contacts 14.
  • This heat sink can also be an integral part of, for example, a light housing.
  • the socket housing 13 facing surface of the heat sink 12 is flat, on its the socket housing 13 opposite bottom forms of the heat sink 12 for surface enlargement and better heat dissipation, a plurality of cooling fins 15.
  • the socket housing 13 has a base receptacle 16, which is formed in the present embodiment as a central, circular recess.
  • the lamp base 17 initially carries a leading away from the heat sink optics 18, within which in the transition region of lamp cap 17 and optics 18, one or more LEDs are arranged.
  • the lamp cap 17 is contour-congruent with the base receptacle 16 and consequently has a circular-cylindrical shape.
  • Radially protruding from the lamp cap 17 retaining cam 19 dive in inserts of the lamp cap 17 in the socket housing 13 through locking grooves 20 and engage behind the manner of a bayonet-like locking appropriately designed wall sections of the socket housing 13.
  • the base 17 has in the first embodiment according to the FIGS. 1 to 7 radially projecting socket contacts 21 in the form of contact pins 22.
  • the lamp holder 11 is considered as the lower part and the lamp cap 17 as the upper part.
  • the socket contact 14 is formed as a contact clip 24 with two opposing and mutually prestressed contact legs 25.
  • Fig. 2 the arrangement 10 of the lamp holder 11 and the lamp base 17 is shown once more in its entirety, wherein the socket housing 13 cut vertically in a plane spanned along the socket contacts 14 enables an insight into the contacting.
  • the lamp base 17 carries an unspecified here heat conducting element, which is partly with the LED and - in arrangement in the version 11 - pronounceteils with the heat sink 12 in contact. In this way, the heat generated during operation of the LED light is led away from the bulb and discharged through the heat sink 12 to the environment.
  • these are spring elements which clamp the lamp holder 11 and the lamp cap 17 against each other. Ensures the system pressure - possibly with additional mediation of the heat transfer promoting agents, such as heat conducting or thermal grease - the full-surface, uniform system of sockel workedem heat conducting element and heat sink 12 and as a result, an optimal heat transfer.
  • the invention proposes solutions with the embodiments described below, in particular with the described contact formation and arrangement.
  • FIGS. 1 to 7 The in the FIGS. 1 to 7
  • the contact forces of the contact legs 25 act here - the longitudinal center axis M taken by the assembly 10 as a measure - axially, ie both in, as well as against the Effective direction of the pressure force.
  • FIGS. 3 to 5 refer to.
  • the socket contact 14 in its contact chamber 26 axially - ie parallel to the central axis M - movably mounted.
  • the socket contact 14 in the first embodiment may be in accordance with FIGS.
  • a second advantageous embodiment of the invention is in the FIGS. 8 to 11 shown.
  • the socket contacts 14 are formed here as approximately V-shaped contacts and lie in the vertical direction, ie in the direction of the vertical center axis M backlash in the formed by the socket housing 13 contact chamber 26 a.
  • the lamp base 17 forms radially outwardly facing contact fields 27, which come after insertion of the lamp cap 17 in the lamp holder 11 and move in the locking direction V on the V-shaped socket contact 14 to rest.
  • a spring leg 28 of the V-shaped socket contact is for electrical contacting on the contact pad 27. The contact forces exerted by the spring leg 28 are directed essentially in the radial direction to the lamp cap 17 or transversely to the vertical center axis M or transversely to the effective direction of the pressure force. A negative influence on the system pressure between socket-side heat conducting element and heat sink 12 therefore does not exist.
  • FIGS. 12 to 15 A third embodiment of the invention is in the FIGS. 12 to 15 shown.
  • This is a lamp cap 17, which forms radially projecting flat blade contacts 29, which in turn are formed by socket contacts 14 in the form of contact clips 24 with counteracting contact legs 25.
  • the socket 14 is mounted floating in the contact chamber 26 parallel to the vertical center axis M or parallel to the effective direction of the pressing force.
  • FIGS. 16 to 19 show a lamp base 17 with flat blade contacts, which protrude first with a partial section radially out of the base, but in a direction of the cooling body 12 by 90 ° angled and thus parallel to the vertical center axis and the effective direction of the Pressure force directed end portion pass. Due to the arrangement of the end portion of the flat blade contact 29, the contact forces between the contact legs 25 and between them angled end portion of the flat blade contact 29 are transverse to the vertical center axis M and thus directed transversely to the effective direction of the pressing force between base-side heat conducting element and heat sink 12. In this respect, the contact forces take no influence on the system pressure or its uniform distribution between the heat sink 12 and socket-side heat conduction.
  • FIGS. 20 to 23 explained in more detail.
  • the same reference numerals are used for identical or technically equivalent components.
  • the arrow directions indicate the effective direction of the respective forces.
  • the lamp socket 42 includes a heat sink 43, a not shown socket housing and socket contacts 44th
  • the lamp base designated overall by the reference numeral 41, comprises a base housing 45, to whose bottom side 46 facing the heat sink 43 a heat-conducting element 47 is arranged.
  • the heat-conducting element 47 rests on the heat sink 43-possibly with the intermediation of a thermal paste or heat-conducting foil-under a certain system pressure F A.
  • the system pressure F A is generated by a device, not shown, which may contain, for example spring elements, the lamp base 41 with the heat sink 43rd tense.
  • FIGS. 20 to 23 corresponds to the direction of force direction of the arrow.
  • the force thus acts on the lamp cap 41 and presses it in the direction of the heat sink 43 and is directed in the concrete embodiment vertically to the lamp base 41 facing the heat sink top 48.
  • Other embodiments are conceivable.
  • the force acting direction can also contrary to the representation in the FIGS. 20 to 23 be directed, which represents only a reversal of the invention described in the following principle.
  • the system pressure between heat sink 43 and heat-conducting element 47 is distributed uniformly over the mutual contact surface.
  • the uniform system pressure generated by the contact force F A between the heat-conducting element 47 and the heat sink 43 ensures an optimum transition of the heat generated by the LED 49 during operation.
  • the LED is in contact with the heat-conducting element 47 carried by the base housing 45.
  • the essential principle of the invention is to form the contact between the socket contacts 44 and the socket contacts 50 by a skilled contact training and / or a suitably skilled contact storage in the lamp base 41 and in the lamp holder 42 in terms of the pressing force F A gegenkraftoker way.
  • FIG. 20 is a contact assembly of socket contact 44 and socket contact 50, in which the socket contact is formed as a contact pin 51 and the socket contact as a contact terminal 52.
  • the contact terminal 52 comprises two mutually facing contact legs 53 which receive the contact pin 51 between them.
  • the base contact 50 is directed parallel to the effective direction of the pressing force F A toward the heat sink 43, in the same orientation, the contact legs 53 of the socket contact 44 are arranged.
  • the contact forces F K act essentially transversely to the pressing force F A.
  • FIG. 21 An alternative embodiment is in FIG. 21 shown.
  • the local base housing 45 is externally equipped with a socket contact 50 in the form of a contact pad 54.
  • the socket contact 44 in the form of a spring leg 55 biased in the direction of the base housing 45, rests against the contact pad 54 through the intermediary of a contact force F K directed transversely to the pressing force F A. Also, this embodiment ensures a respect to the pressing force F A counterforce-free electrical contact.
  • FIG. 22 illustrated embodiment of the invention has a further, extremely advantageous arrangement of socket contacts 44 and socket contacts 50.
  • the socket contacts 50 project relative to the peripheral surface of the base housing 45, so are radially aligned.
  • these are flat blade contacts 56.
  • These flat blade contacts 46 oriented transversely to the effective direction of the pressing force F A are contacted by the socket contacts 44 on their upper side, that is to say the side facing away from the heat sink 43.
  • the effective direction of the contact forces F K is identical to the effective direction of the pressing force F A.
  • the contact forces F K consequently increase the contact pressure between the heat-conducting element 47 and the heat sink 43, provided that the flat blade contacts 46 are uniformly circumferentially spaced.
  • a final embodiment of the invention shows FIG. 23 ,
  • the socket contacts 50 are in turn as circumferentially projecting or radial directed flat blade contacts 56 are formed.
  • the socket contacts are designed as contact terminals, whose contact legs 53 rest on the flat blade contacts 56 on opposite sides and, in particular, contact them electrically at least on one side.
  • a first contact leg 53 as already in FIG. 22 , on the upper side facing away from the heat sink 43 of the flat blade contact 56, the second contact leg 53 is located on the opposite and directed to the heat sink 43 underside of the flat blade contact.
  • the contact forces between the flat blade contact 56 and the lower, the heat sink 43 adjacent contact legs 53 act against the pressing force F A.
  • this force component is therefore suitable to act against the pressure force F A and to reduce the important for the heat transfer system pressure between the heat sink 43 and heat conducting element 47 in a disadvantageous manner.
  • the socket contact 44 is mounted movable parallel to the effective direction of the pressing force F A in the socket housing, not shown. As a result, the force direction of the pressing force F A opposing force component can not develop their effect.
  • the invention shows various contact formations and contact arrangements of the socket and socket contacts 44/50/14/21, the contact forces F K act in terms of the pressing force F A gegenkrafther way. This is achieved in particular by arranging the contacts in such a way that the contact forces are mainly aligned transversely or in the effective direction of the pressure force.
  • the contact arrangement includes one opposite Direction of action of the pressure force directed contact force component, the contacts of lamp holder 42/11 and / or lamp base 41/17 are to be stored decoupled. Then this force component can not develop its counteracting effect on the pressure force F A.

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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)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP10739470.2A 2009-08-05 2010-06-09 Anordnung von lampenfassung und lampensockel Active EP2342493B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202009010577U DE202009010577U1 (de) 2009-08-05 2009-08-05 Lampensockel und Lampenfassung
DE102009040115A DE102009040115B4 (de) 2009-08-05 2009-09-04 Anordnung von Lampenfassung und Lampensockel
PCT/DE2010/000655 WO2011015168A1 (de) 2009-08-05 2010-06-09 Anordnung von lampenfassung und lampensockel

Publications (2)

Publication Number Publication Date
EP2342493A1 EP2342493A1 (de) 2011-07-13
EP2342493B1 true EP2342493B1 (de) 2013-09-25

Family

ID=43308063

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10739470.2A Active EP2342493B1 (de) 2009-08-05 2010-06-09 Anordnung von lampenfassung und lampensockel

Country Status (7)

Country Link
US (1) US8668363B2 (ja)
EP (1) EP2342493B1 (ja)
JP (1) JP5592488B2 (ja)
KR (1) KR101383615B1 (ja)
CN (1) CN102472480A (ja)
DE (2) DE202009010577U1 (ja)
WO (1) WO2011015168A1 (ja)

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CN203702759U (zh) * 2014-01-20 2014-07-09 思博特有限公司 一种轻便的旋转自锁式快拆锁扣装置
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US10914962B2 (en) * 2015-08-21 2021-02-09 Everready Precision Ind. Corp Structured light module with fastening element
KR101685988B1 (ko) * 2016-05-31 2016-12-13 탑이앤지 주식회사 공동주택의 벽체 내설형 led 전원 배전구조물
CN206973322U (zh) * 2017-07-25 2018-02-06 东莞市亚力电器有限公司 一种盐矿灯
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Also Published As

Publication number Publication date
DE102009040115A1 (de) 2011-02-10
DE102009040115B4 (de) 2012-03-29
KR101383615B1 (ko) 2014-04-10
JP2013501318A (ja) 2013-01-10
EP2342493A1 (de) 2011-07-13
JP5592488B2 (ja) 2014-09-17
US20130034989A1 (en) 2013-02-07
WO2011015168A1 (de) 2011-02-10
DE202009010577U1 (de) 2010-12-09
US8668363B2 (en) 2014-03-11
KR20120053016A (ko) 2012-05-24
CN102472480A (zh) 2012-05-23

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