RU69612U1 - TUBULAR LAMP - Google Patents

Abstract

A tubular lamp belongs to the field of lighting engineering, to lighting devices using combinations of light sources. The technical task of the proposed lamp is, while maintaining the basic structural and lighting characteristics, replacing tubular fluorescent lamps as consumer lamps for domestic lighting with tubular LED lamps to save energy, increase service life; the practical absence of the effect of pulsation of the light flux, ease of disposal and environmental friendliness, greater stability and performance under significant external mechanical and climatic influences. The tube lamp contains an optically transparent tube, a combination of spot light emitting diodes located on the heat sink end heatsink-base of the tube and directed towards each other, with one or more focusing lens optical elements and a reflective surface around the LEDs, as well as reflecting and light diffusing spiral on the surface of the tube. Also, at the ends of the lamp tube, the presence of conductive plugs of the same type and size as that of tubular fluorescent lamps of the corresponding size. 1 s.p. f-ly. 2 ill.

Description

Technical field

The utility model relates to the field of lighting engineering, in particular to lighting devices using combinations of light sources.

State of the art

Known fluorescent lamp for residential and public buildings (published application for the invention No. 94036802 A1, IPC F21S 3/00, publ. 1996.07.27)

The specified lamp for transforming its shape is equipped with light-transmitting lodges under the radiating body of the tubular source, while the lodges are made mainly in the form of a decorated lattice of a gutter-shaped or closed shape in cross section, and each light source is placed in the lodgement.

A limitation of this luminaire is the use of traditional tubular fluorescent lamps, which have a number of limitations in comparison with promising LED sources.

Utility Model Disclosure

The technical task of the proposed utility model is, while maintaining the basic structural and lighting characteristics, replacing tubular fluorescent lamps as mass-consumption lamps for domestic lighting with tubular LED lamps for the following technical reasons:

- energy saving up to 3 times in comparison with fluorescent lamps equal in light emission;

- increased service life up to 5 ... 10 times (50,000 ... 100,000 hours MTBF);

- the possibility of smoothly changing the brightness of the glow without reducing the service life;

- the practical absence of the effect of pulsation of the light flux (the pulsation frequency of the lumlamp is 50 Hz - the frequency of the industrial network, for LEDs - more than 400 Hz in an energy-efficient pulse mode);

- ease of disposal and environmental friendliness (the absence of harmful components in the lamp - primarily mercury vapor);

- greater stability and performance with significant external mechanical and climatic influences (work during depressurization of the tube and in the cold);

- improved decorative consumer properties.

The solution to the technical problem is due to the peculiarity of the location of the optical system of LEDs with a glow towards each other at the ends of the hollow optical tube (analog of the lodgement from the prototype) with a light-transmitting surface and with a light-reflecting and light-scattering spiral on the surface of the tube. Optical

the LED system, in addition to themselves, also includes the presence of a focusing lens optical element and a reflective surface around the LED.

The optical tube is made primarily of unbreakable plastic (although it may be made of glass). The application of the spiral on the surface of the tube can be done by any means: mechanical cutting, insertion, spraying, film, paint.

The effect of the presence of a spiral is a uniform redistribution of the light flux due to the refraction of light in the direction from the lamp with a sharp decrease in the blinding effect of the LEDs and a new aesthetically beautiful appearance of the tubular LED lamp, while taking into account the complete conformity of the structural and lighting characteristics, ensuring simple replacement of fluorescent lamps. To do this, the proposed lamp also provides for the presence of conductive plugs of the same type and size as the replaced fluorescent lamps.

List of drawings

Figure 1 - Axial longitudinal section of the lamp.

Figure 2 - Photo prototypes of the lamp.

Utility Model Implementation

The tubular LED lamp contains the following elements: a hollow optical tube 1 with a applied spiral; heat sink end radiators-bases 2 for circuit boards 3 with LEDs 4; focusing optical elements 5: lenses and mirror reflectors; conductive plugs 6.

The hollow optical tube 1 is made mainly of unbreakable plastic or glass, which is a light-transmitting surface, and, in addition, the bearing housing of the lamp, with a spiral of a certain step and depth applied to its surface by one of the technological methods (mechanical cutting, insertion, spraying, film, paint, etc.) and used for light refraction and light scattering.

The hollow optical tube 1 of plastic is made by injection or extrusion by extrusion through a matrix mold under pressure with cooling and without heat treatment. The features of the proposed hollow optical tube is its technically and aesthetically harmonious shape: inside it is transparent transparent with a helical matte finish, on the outside it is smooth and smooth, of a standardized diameter.

The heat sink radiator base 2 for the circuit board 3 with LED 4 is made of aluminum or copper, serves to maintain a certain thermal regime on the electronic components, removes excess heat beyond the boundaries of the optical tube and is a mounting surface for mounting boards 3 with LEDs 4, and also has the grooves and openings necessary for sealing and supplying power supply.

The mounting plate 3 with LED 4 provides a solder-mounted installation of electrical components, isolates the current paths from the radiator base 2, and also provides accurate fixation of the optical elements 5: the lens and mirror reflector relative to the tube-tube body 1 of the tube lamp.

Optical elements 5: the lens allows you to focus the light flux of the LEDs relative to the longitudinal axis of the tube lamp, and a mirror reflector provides additional re-reflection of light from the lamp.

The conductive plug 6 is made of standard materials and is an element for supplying power to the tube lamp and at the same time allows the use of an LED lamp in existing lighting devices for typical fluorescent lamps instead of these fluorescent lamps.

The wires of the power supply and control LED tube lamp, a separate electronic power converter and control unit are not shown in the figures.

An LED lamp based on the proposed optical tube 1 as a housing and LEDs 4 as sources of light emission has improved operational properties, as well as the possibility of using microelectronic components due to the use of heat sink radiators-bases 2 for boards 3 with LEDs 4 with a calculated heat-sink margin.

Technical characteristics of the prototype tube LED lamp:

Supply voltage of the power supply unit and control 220 V Lamp LED Supply Voltage 12 or 24 V Maximum power consumption no more than 2,5 W Mode of operation continuous Degree of protection against environmental influences IP44 / IP65 Electrical shock protection class I Dimensions: 920 × 40 mm Weight 0.43 kg.

Production of a tubular LED lamp:

1) Installation of LEDs on separate circuit boards;

2) Mounting of focusing optical elements on circuit boards with LEDs;

3) Installation of circuit boards with LEDs, optical elements and current lead wires on a heat sink radiator base;

4) Drawing a spiral on the surface of the optical tube;

5) Installation of boards with LEDs on a heat sink radiator base in the inner ends of the hollow tube;

6) Mounting on the ends of the optical tube of conductive plugs;

LED tube lamp operates as follows.

They turn on the device by applying 220 V, 50 Hz power to a typical power supply and control unit (converter). The power supply and control unit, as with a typical tubular fluorescent lamp, is installed separately, outside the tube. Power LEDs on the boards - from 12 or 24 V DC. Depending on the modification of the control unit and in the presence of control wires, the LED tube lamp can smoothly change the brightness of the glow or glow in different discrete brightness modes. The degree of protection is different, including high (from a jet of water) according to international GOST IP65-66. MTBF of failure of an LED tube lamp is from 50,000 to 100,000 hours (practically from 5 to 10 years without the need for repair, therefore, scheduled maintenance is not provided). Maintenance of the device consists only in cleaning the external surface of the tube from contamination. In the event of a malfunction, the LED tube lamp cannot be repaired and is replaced by a new one.

Claims (2)

1. A tube lamp containing an optically transparent tube with an internal light source, characterized in that a combination of spot LEDs is used as the light source, located on the heat sink end heatsink-base of the tube and directed towards each other, with one or more focusing lens optical elements and a reflective surface around the LEDs, as well as a light-reflecting and light-scattering spiral on the surface of the tube. 2. The tube lamp according to claim 1, characterized by the presence at the ends of the tube of conductive plugs of the same type and size as that of tubular fluorescent lamps of the corresponding size.