RU2496049C2 - Luminous-signal system based on light-emitting diodes - Google Patents

Abstract

FIELD: electricity.

SUBSTANCE: luminous-signal system includes two or more light emitting diodes, each of them is installed in protected casing with optically transparent cover, supply main transducer and common for emitters distribution box with current lead devices. In the box installed is at least one common, for example, two-channel transducer connected to two or more light emitting diodes collected on holders inside corresponding protected casing. Each light emitting diode is designed as a module with one or several high-power light emitting diodes forming inner cooling radiator installed with thermal contact with holder - outer cooling radiator, protruding from protected casing into environment. Holder of each emitter has a socket with a channel, through which current lead devices pass. The socket is connected to pipeline connecting protected casing with distribution box. Distribution box is made from heat-conductive material with cooling ribs, and inside it there installed is supply main transducer.

EFFECT: improving thermophysical and operating characteristics.

3 cl, 3 dwg

Description

The present invention relates to special lighting equipment, in particular to lighting complexes with protected light-signal lights, in which mainly high-power LEDs are used as light sources, generating radiation of red, green, yellow, blue, near infrared radiation spectrum or white glow.

The light-signal complex of lights is designed primarily for operation in open space as obstructive lights of all-round visibility, lights approaching aerodromes and orientation in space of aircraft, for lighting high-altitude and extended objects that pose a threat to the safety of flights of these devices, including for the operation of lights in a twin or group execution when installing on towers of television and radio relay repeaters of traditional and mobile communications, on industrial pipes ah thermal and nuclear power plants, metallurgical, chemical, oil refineries and other plants, in the towers of the sea shelf drilling platforms and oil and gas production facilities on the mainland, such as navigation on the rivers.

Known twin barrage type SDZO-05-1 / 2 / -11 TU 3461-001.72956158-2006 / 1 /, made with two light devices, each of which has a protected housing with an optically transparent protective cap, in which a lamp is mounted on LEDs with a power supply converter integrated in the basement with an efficiency of 60-75%.

The lights are paired with a junction box in which a terminal block is installed to connect them to an industrial network and a ground screw.

The disadvantages of the prototype are due to the fact that the heat loss of the converter of each fire falls on its internal volume and LED lamp, worsening the lighting and operational characteristics that require an increase in the dimensions of the fire housing.

A known lighting system with high-power LEDs, containing at least two protected lighting devices with housings made in the form of composite cooling radiators in thermal contact simultaneously with LED emitters and with the mains converters installed in the housing compartments separated from each other by a heat shield, moreover, these housing compartments are connected by pipelines and / or cable entries with a common junction box for lighting devices.

The disadvantages of the prototype are due to the difficulties in ensuring the specified thermal conditions when using LED emitters and converters of increased power, having an efficiency of 75-80%, requiring an increase in size and the use of a heat shield that separates the emitter from the converter.

In addition, modern electronic converters for powering LED emitters from an industrial network have a service life of 2-3 times less than the life of the emitter LEDs and require replacement under operating conditions, which is difficult to perform due to the need to open the housings of the lighting devices.

The aim of the invention is the elimination of these disadvantages of the prototype, the improvement of thermophysical parameters and operational characteristics of the light-signal complex.

This goal is achieved in that the light-signal complex on the LEDs containing at least two LED emitters, each of which is mounted on a holder in a sheathed shell with an optically transparent protective cap or a dome-shaped Fresnel lens, a power supply converter, current supply means and a distribution system common to the above emitters box, and this complex is made with at least one common for LED emitters power supply converter installed in the switchgear Yelnia box and connected to at least two LED emitters mounted on holders within each secure shell.

The goal is achieved by the fact that the power supply converter is made at least two-channel, each of which is connected to an LED emitter.

Achieving the goal is also facilitated by the fact that each LED emitter is made in the form of a module with one or more powerful LEDs, forming an internal cooling radiator installed in thermal contact on the holder - a cooling radiator that protrudes from the sheath into the surrounding space.

The problem is also solved by the fact that each module of the LED emitter is made in the form of a hollow truncated pyramid or in the form of petals separated by gaps - the faces of the pyramid with LEDs mounted on them and assembled in thermal contact on a holder protruding from the protected shell.

The solution to the problem is also facilitated by the fact that in each holder of the LED emitter a socket is made with a channel passing power supply means coupled to the pipeline and / or tubular cable entry connecting the sheath to the junction box.

The achievement of the goal is also facilitated by the implementation of a junction box of heat-conducting material with cooling fins and the installation of a removable power supply converter connected to the specified network through a sealed cable entry.

Preferred embodiments of the light-signal complex on the LEDs are shown in the drawings.

Figure 1. Light-signal complex with two LED emitters. Front view, partially in section.

Figure 2. Fragment of the module - flap radiator for cooling the LED emitter.

Figure 3. Light-signal complex with many emitters.

The light-emitting complex on LEDs shown in FIG. 1 contains two LED emitters 1 and 1 ′ mounted on a holder 2 in protected shells 3 with optically transparent protective caps 4 or domed Fresnel lenses / in FIG. not shown.

Each emitter 1 and 1 'consists of an external cooling radiator 5 made of a heat-conducting material based on aluminum alloy, with cooling fins 6 on the back, and with a cylindrical rim 7 around the perimeter, in which a protective cap 4 or a Fresnel lens is rolled through a seal 8 . The cap or lens can be removable and sealed on the holder 2 with a union nut / in FIG. not shown.

On the inner flat surface of the holder 2, which also performs the function of an external cooling radiator for the LED emitter protruding from the protective shell 3 into the surrounding space, module 9 with one / cm is installed in thermal contact. figure 3 / or several powerful LEDs 10 / cm. figure 2 and 3 /, forming an internal cooling radiator due to conductive heat transfer to the fin holder 2.

Module 9 is made in the form of a hollow correctly truncated pyramid 11, on each face of which at least one predominantly powerful LED 10 is installed in thermal contact, forming together a circular radiation diagram along the horizontal in the scattering angle from minus 6 ° to plus 6 ° and in the upper hemisphere .

The internal cooling radiator of the emitter LEDs 10 can be made with a module 11 / cm. figure 2 / in the form of petals 12 - the faces of a hollow correctly truncated pyramid, separated by gaps 13, bent at selected angles to the longitudinal axis of the pyramid, installed in thermal contact with the holder 2 of the external cooling radiator 5.

When used to create LED emitters, LEDs assembled on boards operating without cooling radiators, the emitter holder can be made of thermoset plastic that is resistant to UV-solar radiation and the environment.

As the LEDs of 10 emitters, for example, LEDs of the XP-E and XP-C series of the company CREE, USA, or an LED of the U-360k / three-crystal type / OPTEL LLC, Moscow, can be used.

Each LED emitter 1 and 1 ', assembled in a sheath on the holder 2, is made with a socket 14 and a channel 15 passing the current supply means 16 into the associated pipe 17 and / or tubular cable entry / in FIG. not shown / connecting the casing 3 with the protected junction box 18.

At least one transducer 19 of the mains supply / secondary power supply / connected to two LED emitters 1 and 1 'by means of current supply placed in pipelines 17 and 17' is predominantly installed in the junction box 18 mainly in thermal contact with the walls.

The Converter 19 can be made at least two-channel, the input 20 of which is connected by a cable 21 to the supply network, and two output channels 22 are connected to the LED emitters 1 and 1 '.

The junction box 18 with a sealed lid 23 and cooling fins 24 is made of a heat-conducting material based on aluminum alloy.

The converter 19 is assembled on a board and can be filled with a heat-conducting compound, as well as installed in thermal contact with the box wall 18 and made removable, with the possibility of convenient replacement in operating conditions, for example, by connecting to the cable 21 of the power supply network and to the current leads of the emitters 1 and 1 'WAGO screwless terminal blocks.

As power network converters, PSL12-350-0 / paired / power sources type ZAO MMP IRBIS, Moscow or two-channel converters, for example, PPMIO-B-xx ZLF series from PEAK Electronic GmbH, Germany, can be used.

The cable 21 has a core connected to the ground screw 25, and is installed in the junction box 18 through the cable entry 27 sealed with a nut 26.

In one embodiment, the light-signal complex on the LEDs may have a group design / see Fig. 3/, i.e. involves the use of 4 or 6 LED emitters 28 with LEDs 29, connected by pipelines with tees 30 to a common junction box 31 with a common multi-channel converter of the mains installed in it.

In this case, the LED emitters 1 or 28 are installed in 4-6 pieces. on each tier of the light barrier, for example, on industrial pipes, with a height exceeding 40 m, or as a common strip of approach lights at aerodromes and heliports.

The proposed design options for the light-signal complex on LEDs can significantly improve their thermophysical parameters for separating overheat-sensitive LED emitters and electronic converters of the supply network, provide convenient replacement of converters having a lower service life in operating conditions, and minimize the overall dimensions of the complex with the possibility of increasing power emitters, including to protect the lights from icing, thereby improving the operation atatsionnye characteristics.

Literature

1. The catalog of LLC "Light Guide". M. 2007. LED obstruction light SDZO-05-1 / 2 / -11 two-arm.

2. Rakviashvili A.G., Sysun V.V. Lighting complex with powerful LEDs. RF patent No. 2430300. Publ. 09/27/2011. Bull. Number 27. Kl. F21 S2 / 00.

Claims (3)

1. The light-signal complex on the LEDs, containing at least two LED emitters, each of which is mounted on a holder in a sheathed shell with an optically transparent cap or a domed Fresnel lens, connected to a junction box, a power supply converter and current supply means, characterized in that each LED emitter is made in the form of a module with one or more powerful LEDs, forming an internal cooling radiator due to conductive heat transfer to the inventive in thermal contact with the holder for radiator cooling, protruding from the containment into the surrounding space and the mains transformer is set in common for the two LED emitters junction box. 2. The light-signaling complex according to claim 1, characterized in that in each holder of the LED emitter there is a socket with a channel passing power supply means coupled to the pipeline and / or tubular cable entry connecting the sheath to the junction box. 3. The light-signal complex according to claim 1, characterized in that the junction box is made of heat-conducting material with cooling fins, and a removable power supply converter is mounted in it, connected to the specified network through a sealed cable entry.

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