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Compact lamp built around light-emitting diodes. RU patent 2245489.

IPC classes for russian patent Compact lamp built around light-emitting diodes. RU patent 2245489. (RU 2245489):

F21S8 - Lighting devices intended for fixed installation (F21S0009000000, F21S0010000000 take precedence;using a string or strip oflight sources F21S0004000000)

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FIELD: instrumentation engineering; pilot lights for panoramic-view systems.

SUBSTANCE: proposed lamp has a number of insulating boards with light-emitting diodes disposed over perimeter of each board. Optical axes of light sources on one or two sides of board are oriented in meridian planes of entire light-emitting space.

EFFECT: enhanced lighting characteristics and uniformity of light distribution.

6 cl, 5 dwg

The present invention relates to lighting technology, in particular to optical sources - LEDs for emitting semiconductor diodes, generating the radiation of the red, green, yellow, blue, near-infrared ranges of the spectrum or white light.

These lamps are designed for use in light signalling devices, such as obstruction lights, explosion-proof lighting devices, lighting devices, sutomatic, lights light marking airfields and heliports.

The known lamp /1/ on light-emitting diodes containing equidistant from the longitudinal axis of the group of LEDs installed on the faces of a convex polyhedron, with the orientation of the optical axes of the LEDs in the space the greater part of the sphere.

Disadvantages of analogue caused by the complexity of the design, the increased dimensions. Design effective mainly in the layout with powerful LEDs that require intense heat sink due to conductive heat transfer.

Known barrage fire, lamp on /2/ on the LEDs containing equidistant from the Central core group of LEDs installed on the current-carrying findings at an angle to the surface of the boards in the range from 5 to 90° on the periphery of the same parallel to each other, the disc-shaped plates with axial holes, strung on the specified terminal.

Disadvantages of analogue due to the low mechanical strength of the applied lamp due to the lack of mechanical fixation of current conducting pins in the space on the boards, as well as the challenges of providing the required level and renamerepo power distribution of light in the corners of minus 6° to + 6° from a horizontal plane greater than about 2 times the force of light that are generated along the axis of the lamp, which is necessary for most lighting, including the barrage of lights. In addition, the lamp has a lack of compactness (increased size) luminous body, does not provide a high plane layout of the LEDs on the cards.

The known lamp /3/ on the LEDs, containing a large number of the same flat insulating discs - cards with axial holes soldered on the perimeter LEDs with radially oriented optical axes forming the cylindrical configuration of the luminous body. Board with LEDs installed in parallel with each other on the Central rod and connected to electrical power supply means of the standard cap.

The disadvantages of the prototype caused by poor configuration of the luminous body of the lamp did not allow for the redistribution of the light flux along the axis of the lamp and partially in the lower hemisphere angles minus 6° -10° that limits the use of lamps, for example, defensive fires or explosion-proof lighting devices.

In addition, the lamp is not provided with high completeness luminous body due to insufficient density of the layout of the LEDs on the cards.

The aim of the invention is to remedy these shortcomings of the prototype, increasing the compactness of the luminous body, the improvement of optical characteristics, including the increase in light output and uniformity of light distribution in space.

This objective is achieved in that in a compact lamp with light-emitting diodes containing two, three or more flat insulating boards round or polygonal shape with a fitted and soldered them groups of LEDs with current-carrying pins, a Central rod that holds these cards to run in parallel with each other, the inverter mains supply and electrical power supply means, these insulating boards made of different diameters and keep the LEDs mounted mechanically fixed current-carrying pins selected spatial orientations simultaneously around the perimeter of each Board, and on one or both sides of at least part of the circuit Board with the orientation of the optical axis in the meridional planes of space at least the upper hemisphere.

The objective is also achieved by the fact that at least part of the dielectric, for example printed circuit boards with mounted along the perimeter of the LEDs inserted into the curved surface of a truncated cone, part of a sphere, paraboloid or ellipsoid of rotation, and the Central rod is located on the longitudinal axis of these bodies of revolution.

The problem is solved also by the fact that the PCB is made in the shape of a regular polygon with soldered and mechanically fixed on the sides and on the perimeter boards LEDs with the orientation of the optical axes of apodemal polygon, and at least part of the specified polygonal cards with the same number of angles (n) are mounted on a Central rod with azimuthal angular offset relative to each other by the value of 180° /n.

The objective is achieved by the fact that soldered and mechanically fixed on one or both sides of at least one printed circuit Board, the LEDs are installed with an azimuthal angular offset of LEDs mounted and soldered on the perimeter of the specified card to the value of 180° /m, where m is the number of LEDs that are installed along the perimeter of the Board. The objective is also achieved by the fact that two insulating boards of smaller diameter and larger diameter mounted LEDs with mechanical fixed current-carrying pins passing through holes in both boards and soldered on the back side of the Board with a larger diameter.

The outcome also contributes to the fact that on the underside of the bottom of the PCB with LEDs assembled elements of the inverter mains supply and the fee is set on the holder that mated with the electrical power supply means, for example with standard cap (E 27.

The most preferred variants of the device according to the invention shown in the drawings.

Figure 1. Compact lamp led with a luminous body, inscribed in the curve surface of a truncated cone, a side view, partly in section.

Figure 2. Same as figure 1, top view.

Figure 3. Compact lamp led with a luminous body, inscribed in the surface of the sphere. Side view, partly in section.

Figure 4. Compact lamp with light-emitting diodes of two boards with a luminous body inscribed in a paraboloid of revolution. Side view, partly in section.

Figure 5. Same as figure 4, top view.

Shown in figures 1 and 2 the first version of the compact lamp led has a flat bottom 1, medium 2 and the top 3 insulating Board having the shape of regular polygons of different diameters mounted on the Central rod 4 in parallel with each other through an intermediate tubular spacers 5.

Insulating Board 1, 2 and 3 is made in the form of printed circuit boards: the lower Board 1 in the form of a regular 18-gon, and the medium 2 and the top 3 cards in the shape of a regular 3-gon. In the center of each polygonal circuit Board has a hole to accommodate the Central rod 4 made in the form of a bolt, tightening and with mechanical locking of the retaining Board with a specified orientation with each other.

Along the perimeter of the polygonal circuit boards 1, 2 and 3 with the led group 6 is bent at an angle of 90° current-carrying pins 7, soldered on each of them in such a way that the optical axis OO, O' and O" LEDs 6 are oriented in the meridianal plane space of the upper hemisphere, passing through apogamy "a" (shown by the dotted line in figure 2) regular polygons and the Central rod 4. While at least a portion of polygonal cards with the same number of angles (n) are mounted on the Central rod 4 with an azimuthal angular offset relative to each other by the value of 180° /n, providing a high uniformity of light distribution on the horizon (O, O' and O") and close to the horizontal direction, for example, in the vertical angles from +6° to minus 6° .

The average Board 2 is made of a smaller diameter compared to - 1, not a larger diameter in comparison with the plate 3, which creates the opportunity for even the small delete the cards among themselves to establish and raspivat on the sides (on the surfaces of circuit boards 1 and 2) the second concentrically have a group of 8 LEDs with current-carrying pins, curved and mechanically fixed on the boards so that the optical axis of About 1 , About 2 Svetovidov 8 is oriented in the longitudinal planes of the space of the upper hemisphere, passing through the vertices of the polygonal circuit boards and the Central rod 4.

The LEDs 6 and 8 of the top Board 3 is also set with mechanically fixed current-carrying pins and the selected spatial orientation around the perimeter and on the front side of the Board with the orientation of the optical axes Of" and About 3 in the meridional planes of space on the horizon and at small angles of inclination relative to the longitudinal axis ZZ of the lamp, respectively, while the distribution of the light flux in the Zenith on "tails" light distribution of the led 8.

D the considered embodiment of the lamp electrically insulating printed circuit Board 1, 2 and 3, and the LEDs 6, installed on the perimeter inscribed in the curve surface of a truncated cone, as shown by the dotted line in figure 1)form similar to the form of a luminous body with a distribution that provides the power of light in azimuth and vertical angles +6° - minus 6° ~15-20 KD and 7-10 KD in corners +6 - +174° the upper hemisphere for LEDs with the power of the light 5-6 CD and double scattering angle 2θ 0,5 ≈ 20° when permitted uneven svetoraspredelenie on the horizon less than 30%.

The second variant of the compact lamp on the LEDs (see figure 3) provides for the execution of the insulating printed circuit boards 9, 10, 11 and 12 of different diameters with LEDs 13 that are installed with the selected spatial orientation around the perimeter of these boards, as well as with the LEDs 14 and 15 on one (for circuit boards 11 and 12) and both (card 10) side boards, respectively, with the orientation of the optical axes o, O’, O", O"', as well as About 1 , About 2, About 3 , About 4, and 5 in meridional planes of space and on the horizon the greater part of the sector, mainly in the angles from minus 10° to + 90° relative to the horizon.

Thus at least part of the printed circuit boards and installed them around the perimeter of the LEDs 13 is inscribed in the curve surface of the sphere (shown by the dotted line in figure 3) or parabolic (see figure 4) or an ellipsoid of rotation (Fig. not shown), and the Central rod 16 is located on the longitudinal axis of these bodies of revolution.

Soldered and mechanically fixed LEDs 14 on one side of the printed circuit boards 11 and 12 or the LEDs 15 on both sides of the Board 10 is installed with an azimuthal angular offset (similar to the layout for the 1-St variant of the lamp, see figure 2) relative to the LEDs 13 that are installed around the perimeter of the specified card to the value of 180° /m, where m is the number of LEDs 13, placed on the perimeter of the Board that provides high uniformity and smooth indicator light distribution.

Fixing the current-carrying terminals of the LEDs 6, 8 and 13, 14 on the boards is made by soldering the ends of the findings and fill the middle part of the conclusions of the insulating compound 16A (see figure 3)

Shown in figure 4, 5 variant lamp on two insulating boards 17 and 18 of smaller and larger diameters, respectively, with mounted LEDs with mechanical fixed current-carrying pins 19 and 20. When the pins 19 of the upper Board of a smaller diameter to pass through the hole and through the holes in the bottom Board 18 large diameter and raspivaetsya on the rear side of the latter, while ensuring the mechanical fixation of the terminals of the LEDs on the top and bottom boards, and electrical connection between them on the bottom Board 18.

All proposed versions of the compact lamp LEDs provide bypass LEDs or groups of LEDs mounted on printed circuit boards by means (Fig. not shown), which is mounted directly on these boards or on the bottom Board, which enables the operation of the lamp when the failure of one or more LEDs.

For all variants of the lamp (see figure 1, 3, or 4) on the underside of the bottom of the PCB 1, 9 or 18 with LEDs assembled elements of the transducer 19a mains and the price is set on the holder 20A, paired with the resources of electrical power supply, which can be used a standard cap 21 type E 27 (1) or the bearing bracket 22 and the current-carrying wire 23 (Fig 3 and 4).

You can also use a low-voltage lamp from a DC source with a current-limiting resistance without Converter industrial network.

The second variant of the lamp ensures the formation of a nearly circular symmetrical the distribution of the light power in most areas, which is preferable for use in lighting, such as explosion-proof lighting, appliances.

The advantages of the proposed options lamp led are to increase the compactness of the luminous body, the size, and improved optical characteristics, including the increase in light output and uniformity of light distribution in space.

Literature

1. Lamp on light-emitting diodes. Pat. Of the Russian Federation No. 2158876, CL F 21 S 8/10. Publ. 10.11.2000,, Bulletin No. 21.

2. Defensive fire. St-in on the floor. model # 24719, CL F 21 S 2/00, 8/110. Publ. 20.08.02. Bull. 23.

3. Pat. France No. 2714956, CL F 21 Q 3/02. Publ. 13.07.95,

1. Compact lamp with light-emitting diodes containing two, three or more flat insulating boards round or polygonal shape with a fitted and soldered them groups of LEDs with current-carrying pins, a Central rod that holds these cards to run in parallel with each other, the inverter mains supply and electrical power supply means, characterized in that elektroizoljatsionnye charge reslicing diameter and keep the LEDs mounted mechanically fixed current-carrying pins selected spatial orientations simultaneously along the perimeter of each insulating Board and on one or both sides, at least part of the insulating boards, with the orientation of the optical axis in the meridional planes space, at least the upper hemisphere.

2. Compact lamp with light-emitting diodes according to claim 1, characterized in that at least part of the electrical insulation, such as insulating printed circuit boards with mounted around the perimeter of sittidae inscribed in the curve surface of a truncated cone, part of a sphere, paraboloid or ellipsoid of rotation, and the Central rod is located on the longitudinal axis of these bodies of revolution.

3. Bedroom lamp led according to any one of claims 1 and 2, characterized in that the insulating circuit Board is made in the shape of a regular polygon with soldered and mechanically fixed on the sides and on the perimeter boards LEDs with the orientation of the optical axes of apodemal polygon, and at least a part of the specified polygonal cards with the same number of angles (n) are mounted on a Central rod with azimuthal angular offset relative to each other by the value of 180°/n.

4. Compact lamp with light-emitting diodes according to any one of claims 1 to 3, characterized in that the soldered and mechanically fixed on one or both sides, at least one electrically insulating printed circuit Board, the LEDs are installed with an azimuthal angular offset of LEDs mounted and soldered on the perimeter of the specified card to the value of 180°/m, where m is the number of LEDs that are installed along the perimeter of the insulating circuit Board.

5. Compact lamp with light-emitting diodes according to any one of claims 1 to 4, characterized in that the two insulating boards of smaller diameter and larger diameter mounted LEDs with mechanical fixed current-carrying pins passing through holes in the insulating printed circuit Board and soldered on the back side of the insulating printed circuit Board with a larger diameter.

6. Compact lamp with light-emitting diodes according to any one of claims 1 to 5, characterized in that on the underside of the bottom insulating circuit Board with LEDs assembled elements of the inverter mains and insulating circuit Board is installed on the holder that mated with the electrical power supply means, for example, with standard cap (E 27.