RU2756571C1 - Led clearance lamp - Google Patents

Abstract

FIELD: lighting.

SUBSTANCE: invention relates to a baseless LED clearance lamp and can be used in automotive vehicles for the clearance lights, license plate illumination, interior lighting. The described technical result is achieved due to the fact that a LED clearance lamp is claimed, consisting of a plate based on a heat-conducting multi-layered material, wherein LEDs are soldered on both sides of said plate and a stabilised LED power supply unit is located below, containing finned radiators, wherein said lamp is characterised by the fact that the radiators are installed at the ends of the plate so as to envelope the plate from both sides, and the radiator fins are oriented radially and are therein located along the edges of the beam angle of the LEDs.

EFFECT: increase in the area of the location of high-power LEDs with effective heat removal by means of a radiator, ensuring a longer operating life of the lamp and a possibility of increasing the luminosity for a LED clearance lamp.

4 cl, 3 dwg

Description

SUBSTANCE: invention relates to a baseless dimensional LED lamp and can be used in automotive engineering for side lights, license plate illumination, interior lighting.

A baseless W5W EPL176 LED automobile LED lamp is known from the prior art. T10 12 SMD OSRAM LED 3030 CANBUS [https://chudofara.ru/svetodiodnye-lampy/1182-epl176-w5w-t10-12-smd-osram-led-3030-canbus-5902537813700.html].

The LED lamp is a plate made of heat-conducting multilayer foil-clad fiberglass, to the upper end of which a fiberglass disc with four LEDs is soldered. Below, on both sides, 4 OSRAM 3030 LEDs are soldered. Below is a stabilized LED power supply unit. Under it there are 4 diodes, which provide a bipolar connection of the lamp (the lamp has no plus and minus). And at the very bottom, in the very base, there is an additional load for matching with the car's computer.

The technical problem of this analogue is the absence of a radiator on the plate, which limits the use of more powerful LEDs with a more powerful glow.

Known baseless car LED lamp 31 mm 36 39 C5W Canbus 6 SMD 5630 5730 [http://alitay.ru/i/32680579414.html], in which, unlike the previous analogue, a radiator is used.

The technical problem of this analogue is that although more powerful LEDs are installed in it, the radiator is installed on the reverse side of the plate and this does not allow placing the LEDs on the reverse side, which also limits the possibilities of using the lamp already by the area on which the LEDs are installed.

The closest analogue is the T10 (W5W) 5630 LED auto lamp + 4 Watt lens [https://clever-light.ru/spisok-tovarov/avtomobilnyj-svet/svetodiodnaya-avto-lampa-t10-w5w-cree-5630-linza -4-vatt.html? Frommarket = h & ymclid = 15986388461577814016800010], which uses a finned radiator located between the LEDs, and both the LEDs and the radiator are made in a circle.

The technical problem of the prototype is the limited area of the LED location between the radiator fins within the dimensions of the cylindrical niche, where any LED marker lamp is inserted.

The objective of the invention is to eliminate these technical problems.

The technical result is to increase the area of arrangement of high-power LEDs with efficient heat dissipation using a radiator, which ensures a longer lamp life and the possibility of increasing the luminosity for a dimensional LED lamp.

The specified technical result is achieved due to the fact that a dimensional LED lamp is declared, consisting of a plate based on a thermally conductive multilayer material, on both sides of which LEDs are soldered, and a stabilized LED power supply unit is located below, and contains finned radiators, characterized in that the radiators are installed on the ends of the plate in such a way that they bend around the plate from both sides, and the edges of the radiators are oriented radially, and at the same time they are located along the boundaries of the angle of the light-emitting diodes.

Preferably, the plates are made on the basis of a thermally conductive multilayer foil-clad fiberglass.

It is possible that the surface at the ends of the plate is made with a copper or metallized coating and is in contact with copper or metallized inner sublayers inside the plate.

It is possible that load resistors are installed in the lamp base itself.

Brief Description of Drawings

FIG. 1 shows a cross-sectional view of the lamp from the end.

FIG. 2 shows a view of the lamp in volume.

FIG. 3 shows a cross-sectional view of the lamp from the end with the display of the angle of the light-emitting diode.

In the drawings: 1 - plate plate based on a heat-conducting multilayer material, 2 - plate ends, 3 - LED, 4 - radiator, 5 - radiator fin, 6 - copper inner sublayer of the plate for heat transfer from LEDs, 7 - surface tracks of the printed circuit board, 8 - center of the plate, 9 - radial directions, 10 - the border of the niche where the lamp is inserted, 11 - contact tracks, 12 - stabilized power supply unit for LEDs; α is the LED glow angle.

Implementation of the invention

The dimensional LED lamp consists of a plate 1 (see Fig. 1) based on a heat-conducting multilayer material, on both sides of which LEDs 3 are soldered, and below is a stabilized LED power supply unit 12 (see Fig. 2). The lamp also contains 4 finned radiators.

What is new is that the radiators 4 are installed at the ends 2 of the plate 1 in such a way that they bend around the plate 1 on both sides, and the ribs 5 of the radiators 4 are oriented radially.

The orientation of the fins 5 in the radial direction 9 from the center 8 of the plate provides the most efficient heat removal with the help of the radiator 4, since the total surface area of the radiator 4 together with the fins 5 and the section of the bending of the plate 1 on both sides with this arrangement is maximum. This makes it possible to install LEDs with a higher luminescence power, which makes it possible to increase the luminosity for the dimensional LED lamp.

A longer lamp life is also ensured by more efficient heat dissipation, since over time, with constant exposure to high temperatures ranging from 50 ° C, LEDs 3 lose their luminosity and their glow power drops literally in 2 - 3 years. With effective heat dissipation, the decrease in the luminosity of the 3-lamp LEDs almost does not occur over the years.

On the other hand, the orientation of the ribs 5 in the radial direction 9 from the center 8 of the plate should go along the boundaries of the LED luminescence angle α, otherwise the ribs 5 will block the light flux of the LEDs and reduce the luminescence efficiency.

Thus, it is the combination of two conditions at the same time:

- radiators are installed at the ends of the plate in such a way that they bend around the plate on both sides, and the radiator fins are oriented radially;

- the ribs are located along the boundaries of the angle α of the glow of the LEDs.

provides the ability to increase the luminance for a side LED lamp.

Plates 1 can be made on the basis of a thermally conductive multilayer foil-clad fiberglass.

At the ends 2 of the plate 1 may have copper surfaces, to which, through contact with the copper inner sublayers 6 of the plate 1, heat is transferred from the LEDs 3. This ensures the most efficient heat removal from the LEDs 3 to the radiators 4. In addition to copper at the ends of the plate, the surface can be made and with any other metallized coating that contacts the inner sublayers inside the plate.

The lamp is powered via pin tracks 11.

The maximum possible protrusion of the ribs 5 of the radiator 4 is limited by the maximum possible radius of the niche 10 where the lamp is inserted.

The principle of operation of the lamp is that the hidden copper sublayers 6 take heat from the LEDs 3, transfer it to the surface layers at the ends 2 of the plate 1, and then to the lateral surfaces of the radiator 4, and from them to its entire area, including the ribs 5.

If necessary, an additional load can be provided in the lamp base itself to coordinate with the car's computer. This can be realized, for example, by installing terminating resistors in the base itself between the tracks (not shown in the drawings).

Claims (4)

1. Dimensional LED lamp, consisting of a plate based on a thermally conductive multilayer material, on both sides of which LEDs are soldered, and below is a stabilized power supply unit for LEDs, and contains finned radiators, characterized in that the radiators are installed at the ends of the plate in such a way that they bend around the plate on both sides, and the fins of the radiators are oriented radially and, at the same time, are located along the edges of the glow angle of the LEDs. 2. The lamp according to claim 1, characterized in that the plates are made on the basis of a thermally conductive multilayer foil-clad fiberglass. 3. A lamp according to claim 1 or 2, characterized in that at the ends of the plate, the surface is made with a copper or metallized coating and contacts with copper or metallized inner sublayers inside the plate. 4. Lamp according to claim 1 or 2, characterized in that load resistors are installed in the lamp base itself.

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