CN101440915B - High-power LED electronic lamp with combined pole line heat dissipation - Google Patents

Abstract

The invention provides a high-power LED electronic lamp with combined pole line heat dissipation. Its structure is composed of LED light-emitting tube, reflector, heat sink, circuit board and matrix lamp holder. The heat sink is used as the positive conductor of the LED light-emitting tube, and the insulating circuit board is used as the negative conductor of the LED light-emitting tube. The insulating circuit board is embedded in the heat dissipation On the upper surface of the sheet, the cooling fins are arranged in strips on the matrix lamp holder. There are positive jacks and negative leakage holes for plugging in the positive pins of the LED light-emitting tubes on the cooling fins. The positive pins and negative pins of the LED light-emitting tubes are respectively plugged into Among the positive pole jack and the negative pole drain hole of the heat sink, an insulating circuit board slot is arranged on the upper surface of the heat sink, and a jack for connecting the negative pole pin is opened on the insulating circuit board, and the negative pole pin of the LED light-emitting tube is inserted into the Among the negative pole jacks of the insulating circuit board, the jack for connecting the negative pole pin on the insulating circuit board is located in the middle of the negative pole leak hole of the heat sink, and the reflector is arranged around the LED light emitting tube.

Description

High-power LED electronic lamp with combined pole line heat dissipation

technical field

The invention relates to a lighting device, in particular to a high-power LED electronic lamp with a combined polar line heat dissipation.

Background technique

In today's energy-scarce world, people are looking for alternative energy sources or developing energy-saving products in various fields. In the field of lighting fixtures, people have eliminated the first generation of incandescent light sources, and generally use energy-saving fluorescent lamps and glow lamps, but fluorescent lamps and glow lamps The series of energy-saving lamps are still inseparable from heating filaments and ballasts. The biggest shortcoming is the short service life. With the further shortage of energy in the world, people began to study LED light-emitting tubes with less power consumption and longer service life as a new lighting source. Electronic lights with high-power light-emitting tubes have begun to be used in some lighting fields, such as car indicator lights. , flashlights and some high-power street lamps or warning lights, but the power of the LED light-emitting tubes in the prior art is far from meeting the lighting requirements of larger occasions. Generally, high-power lamps are combined by multiple light-emitting tube arrays. The required power and illuminance can be achieved, but the heat generated by the combination of multiple luminous tube arrays in the prior art directly affects the luminous efficiency and service life of the lamp. Therefore, trying to reduce the calorific value of the tube and dissipate the generated heat as soon as possible, that is, to make the lamp reach thermal balance without exceeding the allowable junction temperature of the tube has become the biggest problem in this application technology.

The array combination of multiple luminous tubes is firstly combined into small units in series or in parallel, and then according to the size of the required power, multiple series-connected units are connected in parallel or multiple parallel-connected units are connected in series again. Even the method is theoretically possible.

However, since the internal resistance and certain parameters of each light-emitting tube are different, the voltage drop on each tube of the series-connected units is different after power-on, which causes the power of each tube to work differently and thus the temperature The heat dissipation of the tubes is very difficult in the manufacturing process due to the series connection of the luminous tubes, and non-metallic heat-conducting materials have to be used to achieve heat dissipation, but the low thermal conductivity of non-metallic materials greatly reduces the heat dissipation efficiency of the tubes , because the heat dissipation problem has not been really solved, the working current of the LED light-emitting tube cannot reach the best state, and the light illuminance cannot reach the highest level. When working under high current, the heat inside the LED light-emitting tube will increase the resistance of the LED light-emitting tube, and the increase in resistance Conversely, it will increase the heat generation of the LED light-emitting tube and cause the LED light-emitting tube to burn out. Therefore, there is no real ideal electronic lamp for lighting to be applied at present.

Contents of the invention

The invention provides a high-power LED electronic lamp with simple structure and low cost combined polar line heat dissipation.

The electronic lamp of the present invention is realized in the following manner. The electronic structure is composed of LED luminous tubes, reflectors, heat sinks, circuit boards and matrix lamp holders. The negative conductor of the LED light-emitting tube, the insulating circuit board is inlaid on the upper surface of the heat sink, and the heat sinks are arranged in parallel or in a hexagonal shape on the matrix lamp holder. The positive pole and the negative pole of the LED light-emitting tube are respectively inserted into the positive pole jack and the negative pole drain hole of the heat sink. The upper surface of the heat sink is provided with an insulating circuit board slot, and the insulating circuit board is provided with a connection to the negative pole. Jack, the negative pin of the LED luminous tube is inserted in the jack of the insulating circuit board, the jack connecting the negative pole on the insulating circuit board is located in the middle of the negative leak hole of the heat sink, and the reflector is arranged on the periphery of the LED luminous tube.

The beneficial effects of the present invention are: reasonable design, good heat dissipation effect, can adjust the working current of the LED luminous tube in the lamp to the best state, thus greatly improving the illuminance of the LED luminous tube, in order to further improve the illuminance of the LED luminous tube, also A reflector is installed around each LED light-emitting tube to reflect all the scattered and lost visible light due to crossing to a specified range, making the secondary light distribution more reasonable. The reasonable cooperation between the reflector and the heat sink greatly improves the heat dissipation effect, and at the same time increases the service life of the lamp. The energy-saving LED light-emitting tube matrix lamps can replace the existing lamps with high energy consumption and become a reality. Since then set off a worldwide revolution in lighting fixtures.

Description of drawings

Accompanying drawing 1 is the top view structural diagram of the high-power LED electronic lamp of combined polar line heat dissipation;

Accompanying drawing 2 is the B-B direction sectional structure schematic diagram of Fig. 1;

Accompanying drawing 3 is the combined structure schematic diagram of single LED luminous tube and radiator fin, reflector;

Accompanying drawing 4 is a schematic diagram of the front view structure of a single LED light-emitting tube;

Accompanying drawing 5 is the structural schematic diagram of looking up of a single LED light-emitting tube;

Accompanying drawing 6 is the top view structure diagram of heat sink;

Accompanying drawing 7 is a schematic diagram of the cross-sectional structure along the line A-A of Fig. 6 .

Explanation of reference signs: heat sink 1, negative drain hole 2, positive jack 3, cooling fin 4, LED light-emitting tube, reflector 6, positive pin 7, negative pin 8, insulating circuit board 9, matrix lamp holder 10. Insulation circuit board slot 11.

Detailed ways

With reference to the accompanying drawings, the combined polar line heat dissipation high-power LED electronic lamp of the present invention will be described in detail below.

As shown in accompanying drawing 1-5, the high-power LED electronic lamp of combined polar line heat dissipation of the present invention, its structure is by LED light-emitting tube 5, reflector 6, heat sink 1, insulating circuit board 9 and matrix lamp holder 10 The heat sink 1 is used as the positive conductor of the LED luminous tube 5, the insulating circuit board 9 is used as the negative conductor of the LED luminous tube 5, the insulating circuit board 9 is inlaid on the upper surface of the heat sink 1, and the heat sink 1 is arranged in a matrix On the lamp holder 10, the heat sink 1 is provided with a negative drain hole 2 for inserting the negative pin 8 of the LED luminous tube and a positive jack 3 for the positive pin 7, and the positive pin 7 and the negative pin 8 of the LED luminous tube 5 They are respectively inserted into the positive pole jack 3 and the negative pole leak hole 2 of the heat sink 1, the upper surface of the heat sink 1 is provided with an insulating circuit board slot 11, and the insulating circuit board 9 is provided with a jack for connecting the negative pole pin 8, and the LED The negative pin 8 of the light-emitting tube 5 is inserted into the jack of the insulating circuit board 9, the jack connecting the negative pin 8 on the insulating circuit board 9 is located in the middle of the negative drain hole 2 of the heat sink 1, and the reflector 6 is arranged on the LED The periphery of the luminous tube 5.

The vertical section of the reflector 6 is V-shaped, the upper opening is rectangular or circular, and the lower part is provided with a horizontal flange to connect and fix the upper surface of the heat sink 1 .

The lower part of the heat sink 1 is provided with heat dissipation fins 4 .

The matrix lamp holder 10 is provided with heat sink slots, and the heat sink 1 is inserted into the slot of the matrix lamp holder 10 to form an LED light-emitting tube matrix electronic lamp.

The heat sink 1 is strip-shaped, rectangular, circular or ring-shaped, and the arrangement of the LED light-emitting tubes 5 on the heat sink 1 is a single row or multiple rows.

The pins of the LED light-emitting tube 5 are that the number of positive pins 7 is greater than the number of negative pins 8 .

Example

In the high-power LED electronic lamp with combined polar line heat dissipation of the present invention, the LED light-emitting tubes used have a total of eight lead-out pins, as shown in accompanying drawings 3-5, of which six pins are positive lead-out pins, and two tube lead-out pins The pin is the negative lead out pin. In the prior art, when n tubes are connected in parallel, the positive and negative poles need to be connected together with wires respectively, and the positive and negative poles need to be insulated from each other. In the electronic lamp of the present invention, the connecting wire of the positive electrode is made into the shape of an aluminum heat sink. As shown in accompanying drawings 3, 6, and 7, n groups of six positive tubes distributed equidistantly are stamped on the top of the heat sink. The position of the foot jack. On the longitudinal side above the radiator, there is a groove that can be inserted into the insulating circuit board connected to the negative pin. In the groove, there is an oblong hollow under the negative pin of each light-emitting tube, which is to prevent the light-emitting tube from being inserted. Short circuit between positive and negative pins.

The negative insulated circuit board is a printed circuit board made of double-sided copper-clad boards. The two sides of the insulated circuit board are longitudinally etched to a certain width, and the positive and negative electrodes are insulated after being inserted into the groove of the radiator. There are holes for connecting lead wires at both ends of the positive and negative conductive plates for connection with other parallel units or external power supply.

After the positive and negative plates and luminous tubes are installed, the two ends are buckled with plastic mounting seats, which is a complete unit, and several units can be assembled into matrix lamps with different powers.

1: Customized processing of LED light-emitting tubes;

2: Radiator die rolling;

3: External processing of printed circuit boards;

4: The lamps are assembled through the production line;

5: The reflector is made of aluminum alloy sheet stamping, and it can also be made by injection molding vacuum coating process.

The remarkable feature of this product is energy saving. The lamps produced by this technology are currently the most energy-saving lighting lamps in the world, and can be used as lighting sources in different occasions.

Claims (6)

1. A high-power LED electronic lamp with combined polar line heat dissipation, which is characterized in that it includes an LED light-emitting tube, a reflector, a heat sink, a circuit board and a matrix lamp holder. The heat sink is used as the positive conductor of the LED light-emitting tube, and the insulating circuit board is used as the The negative conductor of the LED light-emitting tube, the insulating circuit board is inlaid on the upper surface of the heat sink, the heat sink is arranged on the matrix lamp holder, and the positive pole socket for inserting the positive pin of the LED light-emitting tube and the negative pole of the negative pin are opened on the heat sink The leak hole, the positive pin and the negative pin of the LED light-emitting tube are respectively inserted into the positive jack and the negative leak hole of the heat sink. The upper surface of the heat sink is provided with an insulating circuit board slot, and the insulating circuit board is opened with a connection The negative pin jack of the negative pin, the negative pin of the LED light-emitting tube is inserted into the negative pin jack of the insulating circuit board, and the negative pin jack connected to the negative pin on the insulating circuit board is located at the negative drain of the heat sink. In the middle of the hole, the reflector is arranged on the periphery of the LED light emitting tube. 2. The high-power LED electronic lamp with combined polar line heat dissipation according to claim 1, wherein the vertical section of the reflector is V-shaped, the upper opening is rectangular or circular, and the lower part is provided with horizontal flanges and The upper surface of the heat sink is connected and fixed. 3. The combined polar line heat dissipation high-power LED electronic lamp according to claim 1, characterized in that the lower part of the heat sink is provided with heat dissipation fins. 4. The high-power LED electronic lamp with combined polar line heat dissipation according to claim 1, characterized in that the matrix lamp holder is provided with a heat sink slot, and the heat sink is inserted into the slot of the matrix lamp holder to form an LED to emit light Tube matrix electronic lamps. 5. The high-power LED electronic lamp with combined polar line heat dissipation according to claim 1, characterized in that the heat sink is rectangular, circular or ring-shaped, and the arrangement of LED light-emitting tubes on the heat sink is single row or multiple rows. 6. The high-power LED electronic lamp with combined pole line heat dissipation according to claim 1, characterized in that the number of pins of the LED light-emitting tube is that the number of positive pins is greater than the number of negative pins.

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