BACKGROUND
1. Field
The subject disclosure relates to LED lighting apparatus and more particularly to such apparatus providing a string of LED circuit board carrying capsules.
2. Related Art
Various decorative and/or accent linear lighting apparatus such as rope light, luminous incandescent lighting, and festoon lighting have been in use for some time.
SUMMARY
An illustrative stringed LED capsule lighting apparatus comprises a plurality of adjacent capsules, each capsule comprising (a) a base component, (b) a body component carrying an LED circuit board thereon, and (c) a lens component, wherein, in one embodiment, the body and the base snap together, and the lens snap-fits to the body. Electrical conductors for supplying power to the LEDs enter at one end of the body and exit at an opposite end of the body and attach to respective internal metal connector components, which pass through a surface of the body to supply power to one or more LEDs. The electrical connector components may attach to the body, for example, by snapping into the body in an interior portion thereof to thereby hook the capsules to the conductors, thereby forming a flexible string of LED light capsules. In one embodiment, a guide track and means on the capsule bodies for attaching the capsules to the guide track are provided.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a side view illustrating a plurality of LED light capsules and a guide track which may find use therewith;
FIG. 2 is a perspective view of a base component of a light capsule;
FIG. 3 is a top view of the base component of FIG. 2;
FIG. 4 is a perspective view of a body component of a light capsule;
FIG. 5 is a top view of the body component of FIG. 4;
FIG. 6 is a sectional view taken at VI-VI of FIG. 5;
FIG. 7 is a sectional view taken at VII-VII of FIG. 5;
FIG. 8 is a perspective view of a lens component;
FIG. 9 is a bottom view of the lens component of FIG. 8;
FIG. 10 is a sectional view of an illustrative guide track taken at X-X of FIG. 1;
FIG. 11 is a cutaway view of a portion of a light capsule unit illustrating internal electrical conducting componentry;
FIG. 12 is a perspective view of the underside of a light capsule unit with the base component removed;
FIG. 13 is a perspective view of an illustrative embodiment of an electrical connector;
FIG. 14 is an end view of the connector of FIG. 13;
FIG. 15 is an end view of an opposite end of the connector of FIG. 13;
FIG. 16 is a side view of the connector of FIG. 13; and
FIG. 17 is a side view of the connector of FIG. 13.
DETAILED DESCRIPTION
FIG. 1 shows an illustrative embodiment of a string of LED light modules or “capsules” 11 and a flexible guide track 61 to which the capsules 11 may attach. According to an illustrative embodiment, each LED light capsule 11 comprises a base 13, a body 25, and a lens 51, all three of which may snap together to form the capsule 11.
A base member 13 is shown in FIGS. 2-3 and includes a generally flat floor portion 14 from which extends a generally rectangular inner vertical support 15 and respective end supports 17, 18. Along each side of the floor 14 are respective vertical lips 16, indentations 19 in the vertical lips 16, and mounting tabs 21. The indentations 19 allow passage of guide track mounting tabs 31 of the body 25, while the tabs 21 snap into recesses 30 (FIG. 7) in the inner sidewalls 33, 35 of the body 25 to enable the base 13 to snap or press fit to the body 25.
FIGS. 4-7 further show that the body 25 includes vertical side walls 32,34 and front and back walls, 36. 38. A wire guide 37 protrudes from the front wall 36, while an oval opening 40 (FIG. 12) is formed in the back wall 38. The guide track mounting tabs 31 are formed along the bottom edges of the side walls 32, 34, while slots 39 are formed along the top edges. The slots 39 accommodate tabs 53 formed on respective sides of the lower rectangular edge 54 of the lens 51 (FIG. 8) and facilitate snap fitting of the lens 51 onto the body 25. Flexible fingers 44 extend from a top surface 48 of the body 25 and serve to attach an LED-carrying circuit board 115 (FIG. 11) to the surface 48.
A pair of holes 41, 43 are provided through the top surface 48 of body 25 and facilitate passage of electrical pins 109, 111 (FIG. 11) to supply power to the LEDs, e.g., 112 and related circuitry on the LED carrying circuit board 115. In one embodiment, one or more relatively low power LEDs are employed to achieve various decorative lighting effects. As shown in FIGS. 5 and 6, wire guides are formed on the underside of surface 49, which in the illustrative embodiment include a central vertical guide tab 45 and a horizontal tab 46 with wire guide slots 47 and 48.
FIGS. 11 and 12 illustrate how the respective electrical conductors (wires) 101,102 are guided through the body and employed to interconnect one adjacent module or capsule 11 to the next. In particular, in one illustrative embodiment, metal connector components 105, 107 are clamped onto the respective wires 101, 102 so as to pierce and make electrical contact with the current carrying electrical conductors inside respective outer insulative layers of the wires 101,102. Additionally, the wired guide 37 captures and holds the electrical cable to further assist in attaching the capsules 11 to the cable.
As noted above, the connector components 105, 107 include the vertically extending pins 109, 111, which carry power to the circuit board 115. As may be seen in FIG. 12, respective cylindrical portions of the connector components 105, 107 snap into or otherwise attach to the respective wire guide slots 47, 48 and are separated by the central vertical guide tab 45. The conductors 101, 102 are guided out of the body 25 at one end by the wire guide 37, which, in an illustrative embodiment, extends into the oval opening 40 of an adjacent capsule 11 and is shaped and sized to be pivotable or rotatable therein to guide and shield the conductors 101,102, while at the same time allowing each module or capsule 11 in a string of modules or capsules to freely bend in any direction and to provide decorative “string lighting” effects. In one embodiment, strings of modules can be removably attached to a guide track 61, which may be stapled to adjacent surfaces and optionally also glued, employing the teeth on the underside of the guide track (FIG. 10) which serve to provide more surface area to promote adhesion. The flexibility of the guide track 61 may also vary in various embodiments.
An illustrative embodiment of a connector 105 is shown in more detail in FIGS. 13-17. The connector 105 includes a horizontal channel 121 which unitarily forms or bends into a vertically disposed pin 109. The channel 121 includes respective sides 125, 127, which extend on either side of an arcuate bottom portion 129. First and second teeth 131, 133 protrude upwardly from the bottom portion 129. In one embodiment, the second connector 107 may be identical to connector 105. Connectors so constructed may be readily attached to insulated electrical conductors or cable utilizing a machine which pushes the teeth 131, 133 through the insulation and into the electrically conductive portion as the sides 125, 127 are crimped around the cable.
Various embodiments may provide low-profile (¾″ H×⅝″ W), dimmable high-performance, LED articulated accent lighting and may employ Class I or Class II low voltage (12V) transformers. Illustrative embodiments may further comprise a series of low-voltage LED capsules directly attached to a flexible wire harness. Such embodiments can conform to a radius as small as six-inches, allowing attachment to inside and outside curves in a multitude of interior and exterior applications, and in one embodiment, employing lighting-class LEDs, of, for example, 40 to 80 milliamps with 3 LEDs per board 115. Runs of 30 feet, and optionally 60 feet, are available according to various embodiments. In one embodiment, the length “L” of the lens 51, may be 3.0 inches, but of course may vary in other embodiments.
Those skilled in the art will appreciate that various adaptations and modifications of the just described illustrative embodiments can be configured without departing from the scope and spirit of the invention. Therefore, it is to be understood that, within the scope of the appended claims, the invention may be practiced other than as specifically described herein.
Patent Grant
8794817
