RU2634913C1 - Led lamp - Google Patents

Abstract

FIELD: lighting.

SUBSTANCE: in LED lamp, comprising a base with an integrated power supply, at least one thread-like emitter, electric current conductors, a light-permeable bulb, and a thread-like radiator is positioned freely along a helical line around a cylindrical channel opened at one end of the bulb.

EFFECT: simplifying the design and improving the heat transfer to the surrounding air.

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Description

The invention relates to LED light sources used in various lighting systems.

Known LED lamp containing a base with a built-in power supply, conductors of electric current, a translucent bulb, at least one filament emitter mounted freely along a helical line around a longitudinally arranged cylindrical channel [1].

The objective of the invention is to increase heat dissipation from a filament radiator into the surrounding air.

The technical result is achieved by the fact that in an LED lamp containing a base with an integrated power supply unit, electric current conductors, a translucent bulb, at least one filament emitter mounted freely along a helical line around a longitudinally arranged cylindrical channel, the channel is made in the bulb open from one end face.

In FIG. 1 shows a light-emitting diode lamp with one filament emitter mounted along a helical line around a longitudinal cylindrical channel open from one end made in a bulb; general view; in FIG. 2 shows the fastening of two filament emitters to an electric current conductor; in FIG. 3 shows a fragment of a channel wall having protrusions.

The LED lamp (Fig. 1) contains a base 1 with an integrated power supply 2, at least one filament emitter 3, a thin-walled translucent bulb 4 having a longitudinal (open relative to the axial line ZZ ₁ passing through the center of the base) cylindrical channel 5, conductors (electrodes) 6 of electric current.

The power supply contains a board, a diode bridge, and other parts (not shown). The filament emitter is made in the form of a flexible cord and is installed freely along a helical line around a cylindrical channel. As a filament radiator, a radiator of the FILA-MENT GLDN S series of the General company or a similar radiator can be used. The wall 7 of the channel may have a reflective coating (not shown). Around the channel can be installed two (Fig. 2) and more filament emitters. At the location of the filament emitter, the channel wall may have longitudinal projections 8 (Fig. 3) or ribs (not shown).

The manufacturing process of the LED lamp includes the following operations.

1. Make a cylindrical (Fig. 1) or screw base 1, integrate the power supply 2 into it. The electrical contacts of the base, power supply are connected by conductors (electrodes) 6 of electric current.

2. A glass or plastic thin-walled translucent flask is made 4. In the flask, a longitudinal cylindrical channel (relative to the center line ZZ ₁ passing through the center of the base) open at one end is made 5. A reflective coating is applied to the channel wall 7 (not shown). The execution of the channel wall with longitudinal protrusions (Fig. 3) or ribs (not shown) is possible.

3. The fabricated filament emitter 3 is rolled into a spiral, with its ends attached to conductors (electrodes) of electric current, after which it is installed freely around the channel. Around the channel along a helix one, two (Fig. 2) and more filament emitters can be installed.

4. The flask is fastened with a cap.

Electric current through the cap through the conductors (electrodes) of the electric current enters the power supply and to the filament emitter. When the filament radiator is heated, a luminous flux occurs, which goes through the wall of the bulb to the object of illumination. The heating of the filament radiator is accompanied by the release of heat, part of which is released into the channel, from where it enters the surrounding air. The reflective coating of the channel increases the light output of the LED lamp. The implementation of the channel wall with protrusions or ribs reduces contact with a heated filament emitter.

The heat removal from the filament radiator to the surrounding air is increasing. The range of LED lamps with filament emitters is expanding.

Information sources

1. WO 2015081804 A1, 2015.

Claims (1)

An LED lamp containing a base with a built-in power supply, electric current conductors, a translucent bulb, at least one filament emitter mounted freely along a helical line around a longitudinally arranged cylindrical channel, characterized in that the channel is made in the bulb open from one end.

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