CN101358702A - Direct view led lamp with snap fit housing - Google Patents

Direct view led lamp with snap fit housing Download PDF

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Publication number
CN101358702A
CN101358702A CNA2008101448005A CN200810144800A CN101358702A CN 101358702 A CN101358702 A CN 101358702A CN A2008101448005 A CNA2008101448005 A CN A2008101448005A CN 200810144800 A CN200810144800 A CN 200810144800A CN 101358702 A CN101358702 A CN 101358702A
Authority
CN
China
Prior art keywords
radiator
circuit board
housing
direct view
led lamp
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.)
Pending
Application number
CNA2008101448005A
Other languages
Chinese (zh)
Inventor
K·M·阿尔布赖特
T·特斯诺
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.)
Osram Sylvania Inc
Original Assignee
Osram Sylvania Inc
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 Sylvania Inc filed Critical Osram Sylvania Inc
Publication of CN101358702A publication Critical patent/CN101358702A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings

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

Abstract

The invention relates to a direct view lED lamp with snap fit housing. A direct view LED lamp (10) comprising: a heat sink body (12) having a longitudinal axis (14) and a wall (16) having an exterior (18) and an interior (20). A cavity (22) is formed in the interior (20) and is defined by a circumferential side wall (24) and a back wall (26). A circuit board (28) is positioned in the cavity (22) adjacent the back wall (26). At least one LED (30) is mounted on the circuit board (28) facing in an axial direction parallel to the longitudinal axis (14) and away from the circuit board (28). An optical light guide (32) is positioned adjacent the at least one LED (30). A housing (42) spans the cavity (22) and has a coupling face (44) to mate with the heat sink body (12).

Description

The direct view led lamp that has snap fit housing
Cross reference to related application
It is the priority of 60/962787 provisional application that the application requires in the sequence number that is entitled as Direct View LED Lampwith Snap Fit Housing that on August 1st, 2007 submitted to.
Technical field
The present invention relates to lamp, more specifically, relate to and use the lamp of light emitting diode (LED) as light source.Again particularly, the present invention relates to a kind of like this lamp: the direct field of vision (direct view) opposite with reflecting the visual field (reflectedview) is provided, and is easy to assembling.No. 11/477731 U.S.'s pending application application submitting and transfer the assignee of the present invention on June 29th, 2006 disclosed a kind of lamp of prior art, and it need be used for the different mounting technique of lightguide.
Background technology
The efficient of LED has caused the quick growth to its use in auto industry, particularly general as middle high-mount stop lamp (CHMSL) and taillight.Most of existing equipments, though the light output that is enough to satisfy its purpose of design is provided, manufacturing cost is very high, needs a lot of parts and complicated assembling.
Summary of the invention
Therefore, the objective of the invention is to eliminate the shortcoming of prior art.
Another object of the present invention is to strengthen led light source.
Another purpose of the present invention is the improvement to led light source.
In one aspect of the invention, realize these purposes by direct view led lamp, described direct view led lamp comprises radiator, and described radiator has longitudinal axis and wall, and described wall has outside and inside.Cavity is formed in the described inside and by sidewall and rear wall limit on every side.Circuit board is arranged near the cavity the described rear wall.At least one LED is installed on the described circuit board, towards the axial direction that is parallel to longitudinal axis and away from described circuit board.The optics lightguide is positioned near described at least one LED, and described optics lightguide has leader and at least one light input window, and described leader has inner reflection surface.Described leader axially extends to the light output window along the direction that is parallel to longitudinal axis from described smooth input window.Housing is crossed over described at least cavity, and has the conjunction plane that mates with described radiator.At least one first closure feature is associated with described housing, and in order to described housing is locked onto described radiator with being fixed relationship, described radiator has second closure feature that matches with described first closure feature.Described housing has the light-path that allows light to lead to the lamp outside from output window.Various pressure apparatus are included in the assembly to obtain excellent contact in necessary position.
Description of drawings
Fig. 1 is the perspective view of one embodiment of the present of invention;
Fig. 2 is the cutaway view along the 2-2 line intercepting of Fig. 1;
Fig. 3 is the fragmentary, perspective view of alignment device; With
Fig. 4 is the perspective view of optics lightguide according to an aspect of the present invention.
The specific embodiment
In order to understand the present invention and other purpose of the present invention and further purpose, advantage and performance better, in conjunction with above-mentioned referenced drawings following discloses content and claims.
More specifically referring to accompanying drawing, direct view led lamp 10 has been shown in Fig. 1 and 2 now, it has radiator 12 and cross wall 16, and radiator 12 has longitudinal axis 14 and cross wall 16, and described cross wall 16 has private side 18 and outer side 20.Radiator 12 is formed by suitable material, for example aluminium, zinc, copper or heat-conducting plastic.
Cavity 22 is formed by private side 20, and by sidewall 24 and rear wall 26 limit on every side.Radiator 12 roughly limits drum and comprises a plurality of heat transmission fins 60.Radiator 12 comprises socket receiver 62, and described socket receiver 62 contains electric connection 64.Electric connection 64 extends to the circuit board 28 that is arranged near the cavity 22 the rear wall 26 from socket receiver 62.Preferably, the contact 64 insulating washer 62a carrying of making by for example rubber.
At least one LED 30 (preferred 6) is installed on the circuit board 28, towards the direction that is parallel to longitudinal axis 14 and axially away from circuit board 28.Heating pad 28a between printed circuit board (PCB) 28 and the rear wall 26 in LED work, to provide thermal conductivity.
The light that optics lightguide 32 (the most clearly being shown in Fig. 2 and 4) is provided for LED is sent outwards is sent to zone to be thrown light on.Lightguide 32 has a plurality of arms (its quantity equals the quantity of LED), and each arm has near the light input window 38 the LED 30 and has the leader 34 of inner reflection surface 36.Leader 34 axially extends to light output window 40 from light input window 38.
Circuit board 28 comprises fine registration spare 58 in addition, optics lightguide 32 comprises the align fittings 58a that cooperates with fine registration spare 58 registrations, fine registration spare 58 comprises opening 58b in circuit board 28, align fittings 58a can be anchor clamps 58c, the size of anchor clamps 58c and shape are suitable for mating opening 58b, as shown in Figure 2.Replacedly, fine registration spare can comprise key 58f and the keyway 58d that matches, and key 58f is formed among the 58e of hollow boss portion, and keyway 58d is formed among the align fittings 58a, as shown in Figure 3.
Housing 42 is crossed over cavity 22 and is had the conjunction plane 44 that mates with radiator 12.At least the first closure feature 46 provides in order to housing 42 is locked onto radiator 12 with being fixed relationship.Closure feature 46 as shown in the figure comprises the negative contact 46a of tension type, is latched in to its positive contact 46b tensioning on radiator 12 outsides.Housing 42 is preferably made by suitable plastic material, as shown in Figure 1, comprises 3 closure features that separate with 120 °.
Housing 42 also has light-path 50, and described light-path 50 allows light to lead to the lamp outside from output window 40.Housing 42 comprises that also at least one pressure foot 52 is to buckle circuit board 28 and rear wall 26 close thermal contiguously via heating pad 28a.
Compression gaskets 55 is installed in the centre of housing 42 and radiator 12 with sealed cavity 22; Another compressible pressure elements 54 is positioned at the centre of housing 42 and lightguide 32 so that optics lightguide 32 tight light are buckled at least one LED 30 with being connected.
Therefore, provide easily a kind of and assembled and kept the direct view led lamp of the good registration of all parts apace.
Though illustrated and described the preferred embodiments of the present invention of thinking at present, but it will be apparent to one skilled in the art that under the situation that does not depart from the scope of the present invention that is defined by the following claims and to make various changes and improvements to the present invention.

Claims (10)

1. direct view led lamp comprises:
Radiator, described radiator have longitudinal axis and have the wall of outer side and private side;
Cavity, described cavity are formed by described inboard and by sidewall and rear wall limit on every side;
Circuit board, described circuit board are arranged near the described cavity the described rear wall;
At least one LED is installed on the described circuit board, towards the axial direction that is parallel to described longitudinal axis and away from described circuit board;
The optics lightguide, described optics lightguide is positioned near described at least one LED, described optics lightguide has leader and at least one light input window, described leader has inner reflection surface, and described leader axially extends to the light output window along the direction that is parallel to described longitudinal axis from described smooth input window;
Housing, described housing is crossed over described cavity at least, and has the conjunction plane that mates with described radiator; With
At least one first closure feature that is associated with described housing, pin described housing to be fixed relationship ground with described radiator, described radiator has second closure feature that matches with described first closure feature, and described housing has the light-path that allows light to lead to the lamp outside from described output window.
2. direct view led lamp according to claim 1 is characterized in that: described housing comprises that at least one pressure foot is to buckle described circuit board and described rear wall close thermal contiguously.
3. direct view led lamp according to claim 1 is characterized in that: described housing comprises that compressible pressure elements to buckle described at least one LED with the tight light of described optics lightguide with connecting.
4. direct view led lamp according to claim 1 is characterized in that: comprise liner, described liner and seals described cavity between described housing and described radiator.
5. direct view led lamp according to claim 1 is characterized in that: described closure feature comprises negative part of the tension type on the described housing and the positive part that forms on the described outside of described radiator.
6. direct view led lamp according to claim 1 is characterized in that: described circuit board comprises fine registration spare, and described optics lightguide comprises the align fittings that cooperates with described fine registration spare registration.
7. direct view led lamp according to claim 1 is characterized in that: described fine registration spare is the opening in the described circuit board, and described align fittings is a key, and the size of described key and shape are suitable for mating keyway.
8. direct view led lamp according to claim 1 is characterized in that: described radiator roughly limits cylindrical body, comprises a plurality of heat transmission fins that are exposed to extraneous air.
9. direct view led lamp according to claim 1 is characterized in that: described radiator comprises the socket receiver, and described socket receiver contains electric connection, and described electric connection extends to described circuit board from described socket receiver.
10. direct view led lamp comprises:
Radiator, described radiator have longitudinal axis and have outside and inner wall;
Cavity, described cavity forms in described inside, by sidewall and rear wall limit on every side; Described radiator roughly limits the cylindrical shape that comprises a plurality of heat transmission fins; Described radiator comprises the socket receiver, and described socket receiver contains electric connection, and described electric connection extends to circuit board near the described cavity that is positioned the described rear wall from described socket receiver;
At least one LED is installed on the described circuit board, towards the direction that is parallel to described longitudinal axis and axially away from described circuit board;
Optics lightguide, described optics lightguide have near at least one the light input window described at least one LED, comprise the leader with inner reflection surface, and described leader axially extends to the light output window from described smooth input window; Described circuit board comprises fine registration spare, and described optics lightguide comprises the align fittings that cooperates with described fine registration spare registration; Described fine registration spare is the opening in the described circuit board, and described align fittings is anchor clamps, and the size of described anchor clamps and shape are suitable for mating described opening;
Housing, described housing is crossed over described cavity at least, have the conjunction plane and at least the first closure feature with described radiator coupling, so that described housing is locked onto described radiator with being fixed relationship, described closure feature comprises the negative contact of tension type, be latched in to the positive contact tensioning of described negative contact on the described outside of described radiator, described housing also has the light-path that allows light to lead to the lamp outside from described output window, and described housing comprises that at least one pressure foot is to buckle described circuit board and described rear wall close thermal contiguously;
Liner, described liner between described housing and described radiator to seal described cavity; With
Compressible pressure elements, described pressure elements are positioned at the centre of described housing and described lightguide so that the tight light of described optics lightguide is buckled described at least one LED with being connected.
CNA2008101448005A 2007-08-01 2008-08-01 Direct view led lamp with snap fit housing Pending CN101358702A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US96278707P 2007-08-01 2007-08-01
US60/962787 2007-08-01
US12/011125 2008-01-24

Publications (1)

Publication Number Publication Date
CN101358702A true CN101358702A (en) 2009-02-04

Family

ID=40331231

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2008101448005A Pending CN101358702A (en) 2007-08-01 2008-08-01 Direct view led lamp with snap fit housing

Country Status (1)

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CN (1) CN101358702A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102483216A (en) * 2009-08-04 2012-05-30 3M创新有限公司 Solid State Light With Optical Guide And Integrated Thermal Guide
CN108700271A (en) * 2016-02-24 2018-10-23 Zkw集团有限责任公司 Holding meanss for electronic structure parts
CN109140385A (en) * 2018-10-15 2019-01-04 华域视觉科技(上海)有限公司 A kind of car light part and preparation method thereof with anti-focusing heat sinking function

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102483216A (en) * 2009-08-04 2012-05-30 3M创新有限公司 Solid State Light With Optical Guide And Integrated Thermal Guide
CN102483216B (en) * 2009-08-04 2014-12-03 3M创新有限公司 Solid state light with optical guide and integrated thermal guide
CN108700271A (en) * 2016-02-24 2018-10-23 Zkw集团有限责任公司 Holding meanss for electronic structure parts
CN108700271B (en) * 2016-02-24 2021-07-27 Zkw集团有限责任公司 Holding device for electronic components
CN109140385A (en) * 2018-10-15 2019-01-04 华域视觉科技(上海)有限公司 A kind of car light part and preparation method thereof with anti-focusing heat sinking function
CN109140385B (en) * 2018-10-15 2023-09-01 华域视觉科技(上海)有限公司 Car lamp part with anti-focusing and heat-dissipating functions and preparation method thereof

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C02 Deemed withdrawal of patent application after publication (patent law 2001)
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Open date: 20090204