BG1267U1 - LOW VOLTAGE LIGHT SOURCE WITH HIGH-POWER LEDs - Google Patents

Abstract

The useful model can be applied as light source powered by both classical and alternative and renewable energy sources. The light source has low power consumption, high efficiency and design and dimensions unified with the dimensions and the assembly profile of the halogen lamps for directional lighting. It consists of a housing (1) with high thermal conductivity, ribbed with sixteen triangular ribs (7), on the inside the housing (1) is processed at an angle, forming a reflector (2) and ends with a ring (11) from the outer upper side. From the inside the housing (1) has a smooth contact surface (6), which connects the circuit board (3) to the LEDs (4) and the housing (1). A deflector (5) is situated in parallel above the circuit board (3). In the ribbed part of the housing a circuit board(10) is situated for the current stabilizer, two standard terminals for connection to a power supply (8) and terminal (9) for adjustment of the lighting.

Description

Technical field

The utility model is used as a luminaire, powered by both classic energy sources and alternative and renewable energy sources. It is applicable to both new and existing luminaires or installations in buildings and industrial systems.

BACKGROUND OF THE INVENTION

Known models of luminaires with powerful LEDs (> 1 W) require special design of luminaires and installations or alterations to existing installations, as they are not uniform in terms of overall dimensions and mounting compatibility. This increases the cost of production, as single products are produced as well as construction and assembly activities.

Lighting fixtures with LEDs up to 1W and unified for mounting, but with lower luminous output and limited frequency spectrum, are known. Powerful LED fixtures over 1W are difficult to integrate into existing installations because of their larger dimensions. Other types of luminaires with high power LEDs have a lower efficiency, are not able to adjust the brightness and are dependent on a stable supply voltage.

The technical nature of the utility model

The task is to create a high-power, low-power, high efficiency and construction luminaire unified to the dimensions and mounting profile of halogen directional lighting (moon type) lamps, enabling mass production, mass availability and immediate installation by the end user without special technical competence.

The luminaire consists of:

- solid aluminum alloy housing with high thermal conductivity, finned with 16 triangular ribs, located axially from the base of the housing; on the inside, the housing is angled and ends with a ring on the outside; on the inside, the housing has a contact smooth surface; the housing is galvanically separated from the wiring diagram;

- a first board on which are mounted from one to three LEDs with a power of 1-4 W; the board is two-sided, with a minimum thickness and a large overlap of the two metallized sides, which are galvanically separated from the wiring diagram and mounted on the contact smooth surface;

- a second multilayer circuit board for current stabilizer; located in the main, ribbed portion of the housing perpendicular to the first circuit board;

- two standard terminals for connection to low-voltage power supply extending beyond the enclosure dimensions are mounted on the second board;

- a deflector located at the top of the housing, on its inside, parallel to the first circuit board;

- reflector on the inner walls at the top of the housing;

- illumination control terminal located close to standard terminals;

- circuit board output stabilization circuit involves the use of feedback to stabilize the output current, the Zener diode Z1 and the supply resistor R1.

Explanation of the annexed figures

Figure 1 shows a drawing of the luminaire.

Figure 2 shows the wiring diagram of the luminaire.

Examples of implementation of the utility model

1 is a cross-sectional view of the luminaire. It consists of a monolithic thermally conductive housing 1, of a size allowing it to be integrated into all prior art lighting fixtures using halogen directional (moon) directional lamps at standard low voltage. The housing 1 is ribbed with 16 triangular ribs 7, located axially from the base of the housing 1. From the inside, the housing 1 is angled and performs the function of a reflector 2 to concentrate the light flux.

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The inner part of the housing includes a contact smooth surface 6. On its outer upper side, the housing 1 ends with a ring 11 which allows mechanical attachment to suitable wall brackets.

The first board 3 contacts the surface 6 mechanically and is welded to one to three LEDs 4. The board 3 is two-sided, with a minimum thickness and a large overlap of the two metallized sides, which are galvanically separated from the electrical circuit and provide the necessary heat transfer of the diodes to the housing, as well as the possibility of mechanical attachment to it. It is mounted on the smooth surface 6 for better heat transfer, allowing the LEDs 4 to illuminate the reflector 2 as much as possible.

A deflector 5 is placed parallel to the board 3 for homogenizing the light.

Perpendicular to the board 3 is a second board 10 for a current stabilizer, which is multilayered and is located in the main ribbed part of the housing. On it are soldered two power terminals 8 for connection to the low-voltage power supply, which extend beyond the dimensions of the housing. Parallel to and near terminals 8 is a terminal 9 for adjusting the illumination, which does not interfere with the use of terminals 18.

The circuit board 10 is electrically connected to the LEDs 4 via wires and circuits on the circuit board 3 and terminals 8 and 9.

The circuit board 10 acts as a current stabilizer according to the scheme of Figure 2. The power is supplied through the terminals 8. A resistor R1 of very small value is mounted in series with the Greek scheme; which serves as both a fuse and a current limiter. The Greek scheme is implemented by Schottky D1-D4 diodes, which allow the luminaire to be connected to higher frequency alternating voltage sources like most pulse transformers, as well as to high frequency current generators, thus reduce losses and unify the various types of low-voltage power supplies.

Following the Gretz scheme, there is a filter group made up of an electrolytic capacitor C5 and a ceramic capacitor C1 to filter the input voltage, thus ensuring stable operation of IC1. From the supply voltage parallel to C1 through the divider R7 and R8 and via the NPN transistor T1, connected via a common emitter circuit to a load R6 in the collector, feedback is provided, which provides a constant output current through the diodes when the input voltage changes.

The circuit for stabilizing the output current implemented by the circuit board 10 involves the use of feedback to stabilize the output current, the Zener diode Z1 and its supply resistor R6. Zener diode Z1 achieves an output current close to the maximum - 90-98%. In the absence of these two elements, the output current would be about 50% of the maximum. By using a suitable broad pulse current regulator, accurate illumination adjustment can be made through terminal 9.

The current stabilizer is provided with IC1 according to a scheme specified by the manufacturer, which includes the feedback group, the Zener diode Z1 and the resistor R6, which ensure the operation of IC1 at close to the maximum output current. The capacitors C3 and C4 are filterable. By selecting the appropriate inductance L1 and resistors R _sens , the desired output current is output through the LED1-3 LEDs. Shott diode D5 is damped and is in line with the power of the LEDs, providing a stable output current through reverse EDI induced in L1.

Using the utility model

The utility model can be used for new lighting installations or for the replacement of low-voltage halogen directional (moon) lamps in existing installations. It operates in a very large range of input voltages, making it directly applicable to renewable energy generators (such as wind and water) that do not have a stabilized output voltage due to the volatile nature of this kinetic energy.

If necessary to reduce the light intensity, the luminaire can also be connected to a wide-pulse (IW) regulator to achieve the required illumination.

High efficiency - over 90% - ensures low electricity consumption.

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If a building powered by a RES hydro-kinetic “water wheel” turbine and a multi-pole low-speed generator is connected, at a water column drop of 1600 mm and a flow rate of 3 Ι / s, the energy to be generated will be 5 sufficient supply 40 luminaires of 1 W each with powerful diodes or illuminate with 100 lux area of 24-80 m ² .

If a hotel near the sea, where the wind resource is close to the ideal one, a three-wind turbine 4 m in diameter connected to a multi-pole low-speed generator is installed and assume that at a wind speed of 3-5 m / s, 100-300 W power is provided (which fluctuates at the speed of 15 winds), the energy will be sufficient to supply 200 low-voltage luminaires with 1W or 100W 2-diodes to illuminate an area of 400 -500 t ² at 100 lux illumination. 20

If a pontoon water-net turbine (water wheel) with a diameter of 1600 mm and a working axis length of 10 m and a low-speed multipolar generator is connected to the pontoon near the port of Lom, the energy obtained will be sufficient to supply 800 2W units to illuminate an area of approximately 2000m ² with 100 lux.

If a hotel has a low-voltage electrical installation and halogen incandescent bulbs with directional light with a power of 35 W at 500 luminaires are replaced by an illuminator with powerful diodes of 3 W, this will give both better illumination and annual savings of electricity from 45 600 kW / h (with an average illumination of 8 hours per day).

Table 1 presents comparative data between halogen filament lamps and directional light of different power and illuminators with high power LEDs of different power.

Table!

Type of luminaire E-mail power 1 ...... Efficiency transformation of voltage!% 1 Electricity Consumption for 1 hour when used 8 hours a day {kW / h} Middle Life / Maintenance / Hours [h] Flm luminous flux] Color temperature 1K ° 1 Convert hired energy to luminous flux [W / lml% Incandescent light bulb 220V / 20W 20 X 5760 1000 240-300 2700-3000 12-15 Lighthouse freckles incandescent 220V / 35W 35 X 10080 1000 420-525 2700-3000 12-15 Freckle luminaire incandescent 50 X 14400 1000 600-750 2700-3000 12-15

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wire 220V / 50W LED body 1W 12/24 V 1 0.9 320 100000 60-200 2200-5500 60-200 LED body 2W 12/24 V 2 0.9 640 100000 120-400 2200-5500 60-200 LED TQBIO3W 12/24 V 3 0.9 960 100000 180-600 2200-5500 60-200 LED body 4W 12/24 V 4 _ 1280 100000 240-800 2200-5500 60-200

Claims 15

Claims (1)

Claims 15 1. Low-voltage illuminator consisting of an aluminum alloy housing (1) with high thermal conductivity, LED board (3), reflector (2), LEDs (4), deflector (5) located at the top of the housing (1) , power terminals (8), current stabilizer board (10), the housing (1) being ribbed with ribs (7), characterized in that the housing (1) is ribbed with sixteen triangular ribs (7) arranged axially from the base of the housing (1); on the inside the housing (1) is machined at an angle forming the reflector (2), and on the outer upper side of the housing there is a ring (11); the housing (1) is galvanically separated from the wiring diagram; on the inside of the housing (1) there is a contact smooth surface (6) connecting the circuit board (3) to the LEDs (4) and the housing (1); on the surface (6) there is a first board (3) on which are mounted from one to three LEDs (4) with a power of 1-4 W; the board (3) is two-sided, with a minimum thickness and a large overlap of the two metallized sides, which are galvanically separated from the circuit; in the main, ribbed part of the housing (1), perpendicular to the first board (3), there is a second multi-layer board (10) for current stabilizer; two standard terminals (8) are mounted on the second board (10) for connection to low-voltage power; a deflector (5) is located on the inner upper side of the housing (1), parallel to the board (3); near the terminals (8) there is a terminal (9) for adjusting the illumination; the output current stabilization circuit implemented by the circuit board (10) involves the use of feedback to stabilize the output current, a zener diode Ζ1 and its supply resistor R1.