RU2504716C2 - Light-emitting diode lamp - Google Patents

Abstract

FIELD: electricity.

SUBSTANCE: in light-emitting-diode lamp containing body with light-reflective surface, light-emitting diodes connected through conductors with power supply unit and screw base the body is made as a regular multi-faceted tube made of dielectric material and having windows in the wall for installation of light-emitting diodes in them; at that tube is drawn on the base by its one bearing face. The other bearing face of tube is equipped with perforated lid having in its wall a window for installation of light-emitting diode. Each light-emitting diode is installed in a window with gap sufficient for air passage and fixed by holders. During operation in light-emitting-diode lamp heated ambient air is replaced constantly. Distinctive feature of the lamp includes washing of all surfaces of light-emitting diodes by air streams.

EFFECT: simplified assembly.

2 cl, 6 dwg

Description

The invention relates to the field of lighting engineering and relates mainly to high-power LED lamps.

Known LED lamp containing a body with a reflective surface, LEDs communicating through conductors with a power supply built into a screw base [1]. Such a lamp may have LEDs with a light-emitting crystal on a ceramic substrate of a rectangular or other shape [2].

The objective of the invention is to remove heat from the LED lamp, simplifying assembly and expanding the range of lamps.

The technical result is achieved by the fact that in an LED lamp containing a body with a reflective surface, the LEDs communicating through conductors with a power supply, a screw base, the body is made in the form of a regular multifaceted pipe made of a dielectric material having windows in its wall for installation in them LEDs, with one end of the pipe worn on the base. The other end of the pipe is equipped with a perforated cover having a window in its wall for installing the LED. Each LED is installed in a window with a clearance sufficient for the passage of air, and is fixed by movers.

Figure 1 shows a LED lamp having a body in the form of a regular multifaceted pipe, side view; figure 2 is a top view of figure 1; figure 3 shows a diagram of the supply of electricity from the electrodes to the LEDs, figure 4-6 shows, respectively, holders used with the same wall thicknesses of the body (pipe) and the ceramic substrate of the LED, with different thicknesses of the walls of the body and ceramic substrate, with a gap between the body wall and the ceramic substrate.

The LED lamp (Figs. 1 and 2) contains a screw base 1 with a built-in power supply unit 2, a body 3, having the form of a regular polyhedral tube with a reflective surface 4 on its outer side. The pipe in cross section has the shape of a regular hexagon (triangle, square, pentagon, octagon). The basement from the location of the power supply in it has a transition from a circular cross section to a hexagonal (triangular, square, pentagonal, octagonal) cross section. At one end, the pipe is worn on the base. The other end of the pipe is provided with a cover 5. In the wall 6 of the pipe, windows 7 are made, for example, of a rectangular shape. A similar window is made in the wall 8 of the cover. The windows are equipped with LEDs 9 with a light emitting crystal (not shown) on a rectangular rectangular ceramic substrate, for example, LEDs of the Luxeon Rebel series (Alln CaN). Each LED is mounted in a window with a gap of 10 around the entire perimeter, sufficient for free passage of air, and is fixed by the holders 11. The holders can have a different design (Figs. 4-6). Outside, the ceramic substrate of each LED is coated with an opaque protective (from electric shock) layer 12 of reflective insulation. LEDs through the conductors 13 and the electrodes 14 and 15 communicate with the power supply (Fig.1 and 3). In the wall of the pipe from the base, from the side of the lid and in the lid itself, perforation 16 can be made, for example, with round holes.

The manufacturing technology of LED lamps includes the following operations.

1. From a heat-resistant plastic, a screw base (E 27) is made by casting 1 with a built-in power supply 2 containing a diode bridge, capacitors, etc. (not shown). Electrodes 14 and 15 are attached (soldered, welded) to the power supply unit (Fig. 1).

2. A body 3 is made from ceramic by molding, having the form of a regular polyhedral pipe with a reflective surface 4 on its outer side, in which rectangular windows 7 and perforations 16 are made (Fig. 1).

3. Ceramics make the cover 5, also having a reflective surface, a window and perforation in the wall 8 (figure 2).

4. Produce (acquire) LEDs 9 having a rectangular ceramic substrate, for example, Luxeon Rebel series (Alln CaN). On the ceramic substrate of each LED, a protective layer 12 of reflective insulation is applied from the outside. To the anodes and cathodes (not shown) located on the back of the ceramic substrate, conductors 13 are connected (Fig. 3). In this case, the free end of each conductor can be twisted into a ring for easy donning and fastening to the electrodes.

5. Through the windows and open ends of the pipe, the LEDs are installed in the windows and fixed with holders 11 (Figs. 4-6) with the formation of a gap 10 in the form of a slit (Fig. 1). Similarly, the LED is installed and fixed in the window of the cover (figure 2).

6. Assemble the LED lamp: put the body (pipe) on the base; open end of the pipe close the lid. When the LED lamp is connected to the AC mains, it begins to emit light.

In a working LED lamp, the heated air is constantly replaced by ambient air. A distinctive feature of the lamp is the "washing" of the air flows of all surfaces of the LEDs. Assembly is simplified, the range of lamps is expanded.

Information sources

1. Tubolov A.A. LED lighting - a step into the future // Building materials, equipment, technologies of the XXI century. - No. 12, 2009. - P.24.

2. Davidenko Yu.N. 500 circuits for ham radio. Modern circuitry in lighting. Efficient power supply of fluorescent, halogen lamps, LEDs, elements of the Smart Home. - St. Petersburg: Science and Technology, 2008. - P.228.

Claims (2)

1. LED lamp containing a body with a reflective surface, made in the form of a regular multifaceted pipe made of a dielectric material having a window in its wall, a cover on the open end of the pipe, LEDs communicating through conductors with a power supply, a screw base, characterized in that that each LED is installed in the window with a gap in the form of a gap around the entire perimeter and fixed by holders. 2. The LED lamp according to claim 1, characterized in that the lid has a window with a similarly installed and fixed LED.

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