RU74442U1 - LED BLOCK (OPTIONS) - Google Patents

Abstract

The LED block is made in the form of a monolith of garlands filled with transparent polymer resin forming an electric circuit of series-connected LEDs or a printed circuit board with LEDs installed on it and connected in series.

Description

Technical field

The utility model relates to lighting devices with LEDs used in public utilities: lighting of entrances, elevator cabins, attics and basements, in industries in explosive and aggressive environments: gas facilities, mines, chemical production; to the decorative elements used in construction: facade elements, stairs, decorative tiles for pools, fountains and sidewalks; as well as advertising devices.

State of the art

LEDs are an alternative to traditional light sources, as they have unique technological advantages over traditional light sources, which are not always obvious. Unlike neon, incandescent lamps or fluorescent light sources, LEDs are compact devices that do not have any filaments that can burn out. No moving parts and no glass components. In addition to being virtually unbreakable, LEDs are low-voltage devices that produce very little heat, do not contain mercury and emit a specific wavelength of light, which may correspond to the color of the illuminated surface.

The use of LEDs in all types of light advertising is increasing - volume letters, light boxes, light signs and panels. LEDs are 80% more energy efficient than typical neon systems. Indicators such as high brightness, efficiency due to a higher level of energy saving and a long service life of about 100,000 hours make the use of LEDs as light sources attractive.

The compact size, low power consumption and fast turn-on time lead to the widespread use of LEDs in vehicles to provide both external signaling functions, such as brake lights and turn indicators, as well as in car interiors - most often for dashboard lighting. LEDs are also used in traffic lights and street signs.

A promising area of application of LEDs is the light decoration of interior items - for example, furniture, mirror walls,

false ceilings; architectural elements from various materials, as well as advertising and souvenir products.

Typically, an LED consists of a semiconductor crystal on a substrate. enclosures with contact leads and a plastic dome (plastic lens). However, to increase the radiation power on a common substrate, several semiconductor crystals can be mounted under one transparent dome. Examples of such technical solutions are described, for example, in WO 01/45181 of 06/21/2001 and US patent No. 3875456, published 01.04.1975. The disadvantage of such devices is the complexity of the design and manufacturing technology, requiring special expensive equipment.

The closest analogue of the claimed utility model is the LED block, US patent No. 6595671, published March 14, 2002, made of a transparent polymer resin. In this case, the LEDs are mounted on the frame inside the housing (casing) of a transparent polymer resin. This well-known LED block is technologically difficult to manufacture, since it involves the separate manufacture of the housing, the installation of LEDs on the chassis, the installation of the chassis with LEDs inside the housing and the sealing of the housing. In addition, in the presence of shock loads on the LED block or vibration, the corresponding load will be experienced by the connections of the frame with LEDs, which implies restrictions on the use of the LED block.

Utility Model Disclosure

The proposed device - an LED block is intended for use as, for example, a lamp, both at home and in public utilities: lighting of porches, elevator cabins, attics and basements, in explosive and aggressive environments: gas facilities, mines, chemical production, and can also be used as a decorative element in construction: elements of the facade, stairs, in architectural and landscape design: decorative tiles for pools, fountains and sidewalks, artificial stone, etc. .P. Such devices can also be widely used in advertising signs, souvenirs, etc.

The technical results achieved in the claimed utility model are to simplify the design and manufacturing technology, while

LED block can be made with different sizes, almost any shape can be given to it and a different number of LEDs can be used.

In addition, the technical result is an increase in vibration and shock resistance. At the same time, the LED unit is energy-efficient, moisture resistant, fireproof and protected from vandals.

The indicated technical results are provided in an LED block made of a transparent polymer resin, made in the form of a monolith made of at least one garland filled with a transparent polymer resin, consisting of LEDs forming a circuit and a wire connecting the LEDs in series.

The LED block can be made in the form of a monolith from two or three garlands filled with transparent polymer resin, which differ in the color (wavelength) of the radiation of the LEDs of which they consist. For example, one garland can include LEDs that emit in the red part of the spectrum of visible radiation, another in green, and a third in yellow.

The garland can be equipped with at least one electrical connector installed in the monolith with the possibility of connecting the garland to an external power source. There can be several electrical sockets, for example, one at each garland for their independent connection. On the other hand, several connectors can be used to connect the electric circuit, allowing to couple two or more LED blocks and combine the garlands inside them into one electric circuit from series-connected LEDs.

Part of the surface of the monolith can be made diffusing.

As the polymer resin, cold cured polymer resins as well as epoxy or polyester resins can be used.

The indicated technical results are also provided in the LED block of transparent polymer resin, made in the form of a monolith from a printed circuit board filled with transparent polymer resin with LEDs installed on it, forming at least one electrical circuit with LEDs connected in series with the printed circuit board.

LEDs and a printed circuit board (conductive "paths" on a printed circuit board) can form two, or three electrical circuits that differ in the color (wavelength) of the LEDs.

The circuit board can be equipped with at least one electrical connector installed in the monolith with the ability to connect to an external power source. There can be several electrical connectors and they can be used to connect (dock) two or more LED blocks and combine electrical circuits inside them.

Part of the surface of the monolith can be made diffusing.

As the polymer resin, cold cured polymer resins as well as epoxy or polyester resins can be used.

Thanks to manufacturing technology, the shape of the LED block can be different, for example, for a lamp - in the form of a ball, for decorative decoration of various objects of interior or construction - in the form of a plate (panel) or tile for a floor, for advertising devices - in the form of letters or other signs and images. In this case, LED blocks can be used LEDs with different colors of radiation and polymer resins of different colors.

Brief Description of the Drawings

Figure 1 shows the appearance of the LEDs.

Figure 2 shows the LED block in accordance with the first embodiment of the utility model.

Figure 3 shows the LED block in accordance with the second variant of the utility model.

Utility Model Implementation

Figure 1 shows the appearance of the currently widely used LEDs with a plastic dome, under which there is a semiconductor crystal on a substrate and a housing with contact leads coming out from under the dome.

Figure 2 shows a monolith made of a transparent polymer resin 1. Inside the monolith there are LEDs 2, which form an electric circuit in the form of a garland curved along the surface of the monolith with a wire connecting it in series for uniform luminosity of its surface. The electrical circuit is equipped with a connector 3.

Figure 3 also shows a monolith made of transparent polymer resin 4. But inside the monolith there is a printed circuit board 5 with LEDs 6 mounted on it and connected in series. The printed circuit board is connected to connector 7.

The series connection of LEDs is more economical in terms of energy saving and simpler than parallel, which requires the use of additional current-limiting (current-stabilizing) devices or voltage stabilizers for each LED, especially when connecting a garland to a power source with a relatively large (for LEDs) voltage value, e.g. 220 V.

The LED block is made in bulk. In the form (formwork) for the monolith, in accordance with the first embodiment of the utility model, a garland or garlands of wire and LEDs and a connector are placed. Each LED consists of a semiconductor crystal on a substrate, a housing with contact leads, and a plastic dome (plastic lens). A wire made of aluminum, or copper, or steel has sufficient rigidity to form a frame and hold the LEDs in a predetermined position when placing a garland in a mold supported by a connector. In accordance with the second embodiment of the utility model, a printed circuit board with LEDs and a connector installed on it is placed in the form (formwork) for the monolith. The location before filling with a transparent polymer resin wire frame or printed circuit board with LEDs in the form (formwork) can be additionally fixed with threads or tape fixed on the edges of the form (formwork). Then in the form (formwork) is poured a polymer resin, for example, grade PN - 12C. After hardening of the resin and removal of the form (formwork), the product is ready for use.

Formwork can be removed during the hardening process and give the workpiece a different shape - bend or roll, for example, into a spiral.

It is important that the manufacture of LED blocks in accordance with the described technology does not require special equipment and is possible immediately before their installation, for example at a construction site.

Claims (12)

1. LED block made of transparent polymer resin, characterized in that it is made in the form of a monolith from a transparent polymer resin filled in at least one garland consisting of LEDs forming a circuit and a wire connecting the LEDs in series. 2. The LED block according to claim 1, characterized in that it is made in the form of a monolith from two or three garlands filled with transparent polymer resin, characterized by the wavelength of the LEDs. 3. The LED unit according to claim 1, characterized in that the garland is equipped with at least one electrical connector installed in the monolith with the ability to connect the garland to an external power source. 4. The LED block according to claim 1, characterized in that at least part of the surface of the monolith is made of light-scattering. 5. The LED block according to claim 1, characterized in that as the polymer resin using polymer resin cold curing. 6. The LED block according to claim 1, characterized in that the polymeric resins use polyepoxide, polyester resins. 7. LED block made of transparent polymer resin, characterized in that it is made in the form of a monolith from a printed circuit board filled with transparent polymer resin with LEDs installed on it, forming at least one electrical circuit with LEDs connected to the circuit board. 8. The LED block according to claim 7, characterized in that the LEDs and the printed circuit board form two or three electrical circuits, characterized by the wavelength of the radiation of the LEDs. 9. The LED unit according to claim 7, characterized in that the printed circuit board is equipped with at least one electrical connector mounted in a monolith with the ability to connect to an external power source. 10. The LED unit according to claim 7, characterized in that at least part of the surface of the monolith is made of light-scattering. 11. The LED block according to claim 7, characterized in that the polymeric resins are cold-cured polymers. 12. The LED block according to claim 7, characterized in that the polymeric resins use polyepoxide, polyester resins.