1. Field of the Invention
The present invention relates to a lamp, and in particular to a fixing and connecting structure of a light bar lamp.
2. Description of Prior Art
Light-emitting diodes are of small volume, long life, low electricity consumption, rapid response rate, and high resistance to vibration, and thus they are widely used in lighting or backlight sources, thereby replacing traditional bulbs, small fluorescent lamps or light-emitting elements of cold cathode lamps.
When the light-emitting diodes are applied to the lighting or backlight sources, the circuit board is designed to be square or rectangular shape according to the requirements for the lighting or backlight sources. For example, the circuit board is designed to be elongated, and a plurality of light-emitting diodes is soldered on the elongated circuit board, thereby forming a light bar. When this kind of LED light bar lamps are applied to a backlight source of a liquid crystal displayer (LCD), the LED light bar lamps can be mounted on the periphery of a light-guiding plate of the LCDs directly, thereby replacing the traditional cold cathode lamps. If the LED light bar lamps are applied to the lighting for exhibition, the LED light bar lamps have to be mounted in the interior of an elongated lamp seat first. Then, the elongated lamp seat is fixed to a wall or an inner wall of the exhibition cabinet, so that the light generated by the LED light bar lamps can illuminate the exhibited articles.
When the elongated lamp seats are fixed to the wall or the inner wall of an exhibition cabinet, since the LED light bar lamps can emit light in one direction only, it is impossible to adjust the irradiating direction. Further, when plural sets of LED light bar lamps are needed to be connected in series, the power transmission between two LED light bar lamps must be accomplished by connecting wires so as to deliver the power to each LED light bar lamp. However, the wiring process will spend a lot of time and labor. Further, if any one wire fails to generate a good or correct electrical contact, the related LED light bar lamps will not be lighted up. Alternatively, when the LED light bar lamps are damaged, it is not easy to detach and repair the damaged LED light bar lamps or re-connect the wires, causing the troubles in repair and maintenance.
The present invention is to solve the drawbacks of prior art and provide a fixing seat for assembling the LED light bar lamp on the wall of an inner wall of an exhibition cabinet. Via this arrangement, the irradiating direction of the LED light bar lamp can be adjusted. Further, via an electrical connector, plural sets of LED light bar lamps can be connected in series or disconnected for replacement easily.
The present invention provides an assembly for fixing and connecting a light bar lamp, which includes a polygonal fixing seat, a covering plug and an electrical connector. The polygonal fixing seat has a bottom edge with both ends thereof extending to form two symmetrical bevels respectively. Both ends of the two bevels extend to form two symmetrical parallel plates. Each end of the two parallel plates is provided with a buckling flange that is curved inwards slightly. Further, the bottom and one of the bevels have a penetrating hole thereon respectively. One of the buckling flanges is provided thereon with a notch. The penetrating hole and the notch allow a screw to pass through so as to lock the fixing seat onto a carrier.
The covering plug has a cover. One side of the cover is provided with a bar and an insert. The other side of the cover is provided with a positioning hole and an insertion hole. The positioning hole allows a positioning pillar to be inserted therein. The depth of the insertion hole extends into the insert. The interior of the insertion hole is provided with a needle-like and sheet-like electrode pin.
The electrical connector has a polygonal partitioning block. Both side surfaces of the partitioning block extend to form a protruding pillar respectively. The protruding pillar extends to form a hollow pillar thereon. The outside of the hollow pillar is covered by a metallic electrode that is brought into contact with the sheet-like electrode pin, while the inside of the hollow pillar has a metallic electrode that is brought into contact with the needle-like electrode pin. Further, a positioning pillar is provided on the partitioning block above the protruding pillar is provided with.
The technical contents and detailed description of the present invention will be explained with reference to the accompanying drawings.
The polygonal fixing seat 1 is one-side-opened pentagonal or hexagonal and made of metal or plastics allowing certain variability of shape. The polygonal fixing seat 1 has a bottom 11 thereon. Both edges of the bottom 11 are bent to form two symmetrical bevels 12, 12′, respectively. The two bevels 12, 12′ are bent to form two symmetrically parallel plates 13, 13′, respectively. The bottom 11, bevels 12, 12′ and parallel plates 13, 13′ jointly form a substantial shape of C. An outward edge of each the parallel plate 13, 13′ is provided with a buckling flange 131, 131′ that is bent inwards. The bottom edge 11, the two bevels 12, 12′, and the straight edges 13, 13′ encloses to form the polygonal fixing seat 1 within which the polygonal light bar lamp 2 can be held. Both the bottom 1 and at least one of the bevels 12, 12′ have a penetrating hole 111, 121′, respectively. One of the buckling flanges 131, 131′ is provided with a notch 132. The penetrating holes 111, 121′ and the notch 132 allow a screw 14 to pass through so as to lock the fixing seat 1 to a carrier (described later). Further, the orientation of the fixing seat 1 can be adjusted. In the drawings, in addition to the screw 14, double-side adhesives or hook-and-loop fasteners (Velcro) can be used to fix the polygonal fixing seat 1 to the carrier.
The polygonal light bar lamp 2 has an aluminum polygonal casing 21 whose outline is corresponding to the polygonal fixing seat 1. The surface of the casing 21 is provided with a longitudinal slot 22, while the inside thereof is provided with an accommodating trough 23 formed into a substantially square or rectangular shape. The accommodating trough 23 is used to accommodate a circuit board 24. The circuit board 24 is provided thereon with a plurality of light-emitting diodes 25. One side of the accommodating trough 23 is provided with symmetrical insertion slots 26, 26′ adjacent to an opening 28. The insertion slots 26, 26′ allows a light mask 27 to be inserted therein. The light mask 27 is provided thereon with a plurality of through holes 28. The through holes 28 allow the light generated by the light-emitting diodes 25 to emit therethrough.
The covering plug 3 is made of rubber or plastics. The covering plug 3 has a plate-like cover 31 One side of the cover 31 is provided with a cylindrical bar 32 and an insert 33. The cross-sectional shape of the insert 33 corresponds to that of accommodating trough 23, the insertion slots 26, 26′ and the opening 28. When the covering plug 3 is assembled with the casing 21, the bar 32 inserts into the longitudinal slot 22 with the insert 33 assembling into the accommodating trough 23, the insertion slots 26, 26′ and the opening 28. Further, the other side of the cover 31 is provided with a positioning hole 34 and an insertion hole 35. The depth of the insertion hole 35 extends into the insert 33 for delivering the electric power.
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Further, the positioning pillar 56 or 56′ can be inserted into the positioning hole 34. The depth of the insertion hole 35 extends into the insert 33. Two electrode pin 36, 37 are disposed in the insertion hole 35, thereby contacting the electrodes 54 and 55 so as to delivering the electric power. In the drawings, the positioning pillars 56, 56′ are designed to be foolproof, thereby avoiding erroneous insertion.
Although the present invention has been described with reference to the foregoing preferred embodiments, it will be understood that the invention is not limited to the details thereof. Various equivalent variations and modifications can still occur to those skilled in this art in view of the teachings of the present invention. Thus, all such variations and equivalent modifications are also embraced within the scope of the invention as defined in the appended claims.
Number | Date | Country | Kind |
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96210060 U | Jun 2007 | TW | national |
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Number | Date | Country | |
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20080314944 A1 | Dec 2008 | US |