Source: http://www.google.com/patents/US7344296?dq=6,967,448
Timestamp: 2014-03-10 14:30:45
Document Index: 554407528

Matched Legal Cases: ['arts 833', 'art 830', 'arts 833', 'art 830', 'arts 810', 'arts 833', 'arts 833', 'arts 833', 'art 830', 'arts 833', 'art 830']

Patent US7344296 - Socket for led light source and lighting system using the socket - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA socket fixed to a heat sink holds a card-type LED module formed by integrating LED elements. The socket (6) includes: a frame structure for holding the LED module (1000) with its light source unit exposed through the frame opening; and a pressing member positioned around the opening for pressing the...http://www.google.com/patents/US7344296?utm_source=gb-gplus-sharePatent US7344296 - Socket for led light source and lighting system using the socketAdvanced Patent SearchPublication numberUS7344296 B2Publication typeGrantApplication numberUS 10/543,635Publication dateMar 18, 2008Filing dateFeb 2, 2004Priority dateFeb 7, 2003Fee statusPaidAlso published asDE602004028099D1, EP1590996A1, EP1590996B1, US20060141851, WO2004071143A1Publication number10543635, 543635, US 7344296 B2, US 7344296B2, US-B2-7344296, US7344296 B2, US7344296B2InventorsNobuyuki Matsui, Masanori Shimizu, Kazuhisa Matsuo, Eiji KawabeOriginal AssigneeMatsushita Electric Industrial Co., Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (24), Referenced by (47), Classifications (32), Legal Events (2) External Links: USPTO, USPTO Assignment, EspacenetSocket for led light source and lighting system using the socketUS 7344296 B2Abstract A socket fixed to a heat sink holds a card-type LED module formed by integrating LED elements. The socket (6) includes: a frame structure for holding the LED module (1000) with its light source unit exposed through the frame opening; and a pressing member positioned around the opening for pressing the back surface of the LED module against the heat sink (2122). The socket may include a structure including a lower member (61) placed on a heat sink and an upper frame member (62) holding the LED module with its light source unit (1002) exposed through the frame opening. The upper member supported by the lower member via a hinge can open/close, and includes a pressing unit pressing the LED module set in the open state, against the lower member (61). The lower member (61) includes, in its main part, a lock unit (63) directly or indirectly lock the upper member (62) when the upper member is closed.
TECHNICAL FIELD The present invention relates to a socket designed for an LED light source for lighting applications, and in particular relates to a socket suitable for a card-type LED module formed by mounting LED bare chips on a metal substrate, and to a lighting system using the socket.
BACKGROUND ART LED (light emitting diode) light sources are now calling attentions as next-generation new light sources. Unlike typical conventional light sources, LEDs do not use a filament and therefore have a long life. Further, LEDs have a number of advantageous features such as compact manufacturing due to its extremely small and thin dimensions. A wide range of lighting applications are expected for LEDs as light sources, with its favorable features including reduced limitations on the mounting position.
As one example, Japanese Laid-Open Patent Application No. S62-8403 discloses a lighting system that uses an LED light source formed by arranging linear lead frames in parallel, with each lead frame holding a plurality of through-hole type LED elements. Further, one technique is available for removably mounting such an LED light source as a �card-type LED module�. The �card-type LED module� is formed by arranging, instead of the lead wires, surface-mounting-type LED elements in parallel on a card-type substrate. This technique enables, on a main substrate where the socket is placed, various card-type LED modules each differing in color and illuminance of emitted light to be selectively mounted depending on the situation.
DISCLOSURE OF THE INVENTION In view of the above problems, the object of the present invention is to provide an LED light-source socket suitable for practical use that enables stable driving while effectively releasing heat generated in each LED during driving, and also to provide a lighting system having the socket without disfigurement of the lighting system.
BEST MODE FOR CARRYING OUT THE INVENTION 1. First Embodiment 1.1 Construction of the Socket for LED Light Source
FIG. 1 shows the constructions of the socket 1 designed for an LED light source, a card-type LED module 1000 as one example of the LED light source (hereafter simply �LED card 1000�), and a heat sink 3000.
2. Second Embodiment FIG. 4 shows the construction of an LED light-source socket relating to a second embodiment of the present invention.
3. Third Embodiment FIG. 5 shows the construction of an LED light-source socket relating to a third embodiment of the present invention.
4. Fourth Embodiment 4-1. Construction of the Socket 4 FIG. 6 shows the construction of an LED light-source socket relating to a fourth embodiment of the present invention.
5. Fifth Embodiment FIG. 7 shows the construction of an LED light-source socket relating to a fifth embodiment of the present invention.
6. Sixth Embodiment 6.1 Overall Construction of the Lighting System
In the sixth to ninth embodiments, for the swing-type LED light-source socket of the present invention, the state where the upper member swings on the hinge axis away from the lower member is referred to as �an open state�, and the state where the upper member is directly or indirectly locked on the lower member is referred to as �a closed state�.
7. Seventh Embodiment 7-1. Construction of the Socket 7 FIG. 11 shows the construction of a socket 7 for an LED light source relating to the seventh embodiment.
8. Eighth Embodiment 8-1. Construction of the Socket 8 FIG. 12 shows the construction of the socket 8 for an LED light source relating to the seventh embodiment.
The arm parts 833 are formed by cutting parts of the lock unit 83 into thin and long rectangular shapes to extend from both ends of the lock main part 830, and bending the cut parts in the direction where the card placement area 814 is positioned. It is preferable to set an angle at which the arm parts 833 are bent with respect to the lock main part 830 at 90� or larger. Notch parts 810 b corresponding to the arm parts 833 are formed in the lower member main unit 810, so that the lock unit 83 can sway freely without its arm parts 833 being blocked by the lower member main unit 810.
As shown in FIG. 13A, the arm parts 833 formed at an angle of 90� or larger with respect to the lock main part 830 are away from the lower member main unit 810 in the upper direction when the LED card 1000 is not mounted. Because the arm parts 833 are formed integrally as parts of the lock unit 83, the lock main part 830 and the lock projection 831 are accordingly inclined outward.
INDUSTRIAL APPLICATION The present invention is applicable to lighting apparatuses and lighting systems that are required to have a feature of being compact, thin, lightweight or the like.
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