CN204300823U - A kind of LEDbulb lamp - Google Patents

Abstract

The utility model provides an LED bulb lamp. It includes a lamp holder, a heat dissipation plastic unit, a power drive unit, a heat conduction column, a full-angle light-emitting LED lamp sheet and a lampshade. The bottom of the heat dissipation plastic unit has external threads, which are connected with the internal threads inside the lamp head. The power drive unit is set in the cavity of the heat dissipation plastic unit. , the heat conduction column is connected with the heat dissipation plastic unit, and the contact surface is coated with heat conduction silicone grease to increase the heat conduction capacity. The column is connected to the positive and negative poles of the full-angle light-emitting LED light sheet. <b>This utility model</b> adopts sapphire as a heat-conducting and light-transmitting bracket, which has high strength and good heat-conducting and light-transmitting characteristics, and can maximize the luminous performance of the LED chip. The LED light sheet and the aluminum heat conduction column are bonded with high thermal conductivity silica gel, so that it has good thermal conductivity and heat dissipation performance, and ensures the luminous efficiency.

Description

A kind of LED bulb lamp

(1) Technical field

The utility model belongs to the technical field of LED lighting, and in particular relates to an omnidirectional LED bulb lamp. It adopts light-transmitting and heat-conducting brackets for LED packaging, and relies on aluminum parts and special plastic materials for heat dissipation, so as to achieve higher luminous efficiency, save more power, and obtain a larger angle of light.

(2) Background technology

LED has the advantages of high light efficiency, low energy consumption, long life, environmental protection, etc., and is the most ideal substitute for traditional light sources. As a new generation of green light source and lighting technology, LED lights have developed rapidly in the global lighting industry in recent years, and their products involve backlights, signal lights, landscape lighting, general civil lighting and other fields. However, at present, LED lamps are not satisfactory in terms of lamp structure, luminous efficiency, and heat dissipation. Only under the premise of having the same or even lower production cost as traditional lighting products, can obtain higher luminous efficiency, can LED lights be popularized in the field of general lighting.

Nowadays, people have made great breakthroughs in the production of LED lights, with the highest luminous efficacy exceeding 250lm/W, and some products have also been put into the market. But at present, LED lamps have not enough advantages in replacing traditional light sources in terms of production cost and product stability. Moreover, the luminous efficiency of general lamps is less than half of the theoretical value and needs to be further improved. People generally start to improve the luminous efficiency of lamps from the following aspects: one is to start with the improvement of the quality and structure of the chip itself. In order to increase the chance of light emission, thereby increasing the amount of light output. Although the reflective layer can increase the amount of light output, due to the opacity of the chip packaging substrate, the light emitted from the active layer of the chip to the direction of the substrate can only be emitted from above the substrate, and the light extraction efficiency is low. In addition, for the packaging method in the form of a filament or the light source is located at a higher position in the lamp housing, the light output angle of the lamp is larger and the luminous efficiency is higher.

With the continuous decline in the price of LED products and the continuous improvement of technology, LED products have now begun to enter daily home lighting. Various lamps begin to appear in people's homes, such as LED spotlights, downlights, lamp tubes, ceiling lamps, bulb lamps and so on.

However, in addition to the price factor, there are still some aspects of LED lamps that are concerned by users. The main purpose of a large number of lamps used in home lighting is to replace the original traditional lamps, and traditional lamps include incandescent lamps, energy-saving lamps, lamps, etc. Tubes have very distinctive features. First of all, it is completely different from LED lamps in appearance, and for this reason, the speed at which LED lamps replace traditional lamps still needs to be improved. For example, traditional incandescent lamps and energy-saving lamps are used in home lighting with 360° luminous characteristics. In many occasions, this luminous characteristic will be very well applied, such as candle lamps in crystal lamps and so on. However, the existing LED bulb lamps only have 180° of light emission, forming a very obvious dark area on the back of the lamp, which is unacceptable to many users.

(3) Contents of the invention

The purpose of this utility model is to address the shortcomings in the above-mentioned background technology, and provide a LED lighting technology with a larger luminous angle, which can not only emit light in all directions, but also has a very prominent heat dissipation capability, which can effectively improve the luminous angle and light-emitting angle of the bulb lamp. The luminous efficiency is also more prominent in the appearance of the LED illuminant. Compared with the traditional LED bulb lamp, the LED bulb lamp has outstanding advantages in terms of luminous angle, luminous efficiency, and aesthetic appearance.

The utility model is realized in the following way: it includes a lamp holder, a heat dissipation plastic unit, a power drive unit, a heat conduction column, a full-angle luminous LED lamp sheet and a lampshade. The unit is set in the inner cavity of the heat-dissipating plastic unit. The heat-conducting column is connected with the heat-dissipating plastic unit. The contact surface is coated with heat-conducting silicone grease to increase the thermal conductivity. The drive leads of the unit are connected to the positive and negative poles of the full-angle light-emitting LED light sheet through the heat conduction column.

The utility model also has some technical characteristics:

1. The lamp holder is E14 or E27 or E40 screw, or B22 bayonet, which is used to fix on the lamp holder and connect to the power supply;

2. The heat dissipation plastic unit adopts plastic accessories with good heat conduction and heat dissipation performance;

3. The heat-conducting column is made of aluminum, and is tightly connected with the built-in aluminum parts of the heat-dissipating plastic unit with screws;

4. The full-angle light-emitting LED lamp sheet uses high thermal conductivity transparent material as the LED bracket, and the front and back sides of the bracket are coated with phosphor, and the surface of the LED bracket is made of a metallized layer as the positive and negative electrodes of the full-angle light-emitting LED lamp sheet , the metallization layer is welded and connected to the drive lead-out wire of the power drive unit;

5. The lampshade is made of glass or PC, and its opening is bonded to the circular groove of the heat-dissipating plastic unit with glue.

The light source part of the utility model adopts a high thermal conductivity transparent bracket, which has the characteristics of full-angle light emission, effectively improves the luminous efficiency of the light source itself, and at the same time makes the LED bulb emit light in all directions without dead angles, breaking through the limitation of the light-emitting angle of the existing LED bulb lamp. Bottleneck, the utility model can be widely used in fields such as indoor lighting and plant lighting.

The beneficial effects of the utility model are: 1) using the LED light source made of the light-transmitting heat-conducting bracket, so that the LED bulb lamp can realize all-round light emission; The radiator does not block the light; 3) The use of heat-dissipating plastic heat-dissipating devices ensures the safety of the lamps under the premise of ensuring heat dissipation, and the appearance is also more beautiful.

(4) Description of drawings

Fig. 1 is a structural representation of the utility model.

(5) Specific implementation methods

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Combined with Figure 1, the utility model includes a lamp holder 4, a heat dissipation plastic unit 3, a power drive unit, a heat conduction column 2, a full-angle light-emitting LED lamp sheet 1 and a lampshade 5, and the utility model can adopt a traditional E14 or E27 or E40 lamp holder, The bottom of the heat dissipation plastic unit 3 has an external thread, which is connected with the internal thread inside the lamp holder. The power drive unit is arranged in the inner cavity of the heat dissipation plastic unit. The heat conduction column 2 is connected with the heat dissipation plastic unit. The contact surface is coated with heat conduction silicon to increase the heat conduction capacity. The top of the heat conduction column is set as a rectangular surface to connect with the full-angle luminous LED light sheet 1, and the driving lead wire of the power drive unit passes through the heat conduction column to connect with the positive and negative poles of the full-angle luminous LED light sheet.

With reference to Fig. 1, the present embodiment adopts the E14 lamp holder. In addition, the lamp is equipped with a power driver that converts alternating current into direct current, so that it can be easily installed on the original incandescent lamp holder, replacing traditional incandescent lamps or energy-saving lamps, and at the same time makes the lamp have no flicker and high power factor. , High luminous efficiency, various excellent characteristics of power saving and energy saving. This bulb can also be used in the field of plant lighting. It promotes plant growth through light of a specific wavelength. Using the characteristics of light from both sides of the bulb, there is no dead angle for plant lighting, and the application of LED lamps in plant lighting can be better utilized.

Claims (2)

1. An LED bulb lamp, characterized in that it includes a lamp holder, a heat dissipation plastic unit, a power drive unit, a heat conduction column, a full-angle light-emitting LED lamp sheet and a lampshade, and the bottom of the heat dissipation plastic unit has an external thread, which is connected to an internal thread inside the lamp holder Connected, the power drive unit is set in the inner cavity of the heat-dissipating plastic unit, the heat-conducting column is connected with the heat-dissipating plastic unit, and the contact surface is coated with heat-conducting silicone grease to increase the heat-conducting capacity, and the top of the heat-conducting column is set as a rectangular surface and a full-angle light-emitting LED light sheet Connection, the driving lead wire of the power drive unit is connected to the positive and negative poles of the full-angle light-emitting LED light sheet through the heat conduction column. 2. A LED bulb lamp according to claim 1, characterized in that the full-angle light-emitting LED light sheet uses a high thermal conductivity transparent material as the LED bracket, and phosphor powder is coated on both sides of the bracket, and the LED A metallized layer is made on the surface of the bracket as the positive and negative poles of the full-angle light-emitting LED light sheet, and the metallized layer is welded and connected to the driving lead wire of the power drive unit.