WO2016082319A1 - 360° light-emitting and aerodynamic heat dissipation led bulb - Google Patents

Abstract

Disclosed is a 360° light-emitting and aerodynamic heat dissipation LED bulb, comprising an LED lamp panel and a lampshade (1); the material of the lampshade (1) employs a transparent material, and is in an annular shape; the lampshade (1) is provided with an opening at an upper end surface thereof and a receiving cavity (14) therein; a side section of the lampshade (1) is in an inverted "n"-shape; the LED lamp panel is in an annular shape matching the lampshade (1); the LED lamp panel is provided at the opening of the lampshade (1), and is provided with a plurality of LED lamps (2) thereon; and the LED lamp (2) faces the receiving cavity (14). The side section of the lampshade is in an inverted "n"-shape, therefore, the bottom wall of the lampshade is in an arc-shape; when the LED lamp emits light, the light rays are repeatedly reflected by an inner wall of the inner side wall of the lampshade, an inner wall of the annular bottom wall and an inner wall of the outer side wall, thus increasing an opportunity of the light rays to be emitted from a rear portion of the LED bulb lamp, realizing a 360° light-emitting effect, and solving the problem that the LED lamp cannot realize an illumination effect of a traditional light source.

Description

360° illuminating and aerodynamic cooling LED bulb Technical field

The invention relates to an LED bulb lamp, in particular to an LED bulb with 360° illumination and aerodynamic heat dissipation.

Background technique

所示的光线经过PC灯罩1’或玻璃灯罩反射或直接投射出去，采用该种形状的PC灯罩1’的出光角度不够，仅120～180°，在替代传统白炽灯或节能灯时，无法达到传统光源的照射效果；其二，LED灯产生的光源需要足够的散热才可以满足寿命长的需求，当前市面上产品多采用传统散热鳍片3’，仅依靠如

所示的空气与散热体本身的温度差异进行散热，散热效果差，为了增大散热效果，就必须增大散热体的表面积，从而导致材料成本的增加；其三，若使用玻璃灯罩则易碎，从而又使LED光源失去了抗摔击的特点。As shown in FIG. 1 , the current LED bulbs mostly use a hemispherical PC lampshade 1' or a glass lampshade. The disadvantage of the hemispherical PC lampshade 1' is that one of the LED lamps 2' as shown in FIG.

The light shown is reflected or directly projected through the PC lampshade 1' or the glass lampshade. The light angle of the PC lampshade 1' of this shape is not enough, only 120-180°, which cannot be achieved when replacing the traditional incandescent lamp or energy-saving lamp. The illumination effect of the traditional light source; secondly, the light source generated by the LED lamp needs sufficient heat dissipation to meet the demand of long life. Currently, the products on the market mostly use the traditional heat sink fin 3', relying only on

The difference between the temperature of the air and the heat sink itself is dissipated, and the heat dissipation effect is poor. In order to increase the heat dissipation effect, the surface area of the heat sink must be increased, resulting in an increase in material cost. Third, if the glass lamp cover is used, it is fragile. Therefore, the LED light source is lost to the characteristics of anti-jumping.

Summary of the invention

In order to overcome the above disadvantages, it is an object of the present invention to provide an LED bulb that can increase 360° illumination and aerodynamic heat dissipation.

In order to achieve the above object, the technical solution adopted by the present invention is: a 360° illuminating and aerodynamic heat-dissipating LED bulb, comprising a lampshade and an LED lamp panel having a plurality of LED lamps, the material of the lampshade being transparent The lampshade is annular, the upper end surface of the lampshade has an opening and has a cavity therein, and the side section of the lampshade has an inverted "n" shape, and the LED lamp panel has a ring shape matched with the lampshade. The LED light panel is disposed at an opening of the light cover, and the LED light faces the cavity. Since the reflectance of the transparent medium is related to the incident angle of the light, the larger the incident angle, the larger the reflectance, according to the original The lampshade of the present invention is arranged in a ring shape, and the side cross section of the lampshade has an inverted "n" shape. It can be seen that the bottom wall of the lampshade has an arc shape, and the LED lamp on the LED lamp panel emits light when it is illuminated. In the light of the inner wall of the lampshade, the incident angle of part of the light is small, and is directly transmitted through the lampshade; the incident angle of the partial light is large, and the inner wall of the inner wall of the lampshade, the inner wall of the arc-shaped bottom wall and the inner wall of the outer wall are realized. Multiple reflections, which in turn increase the chance of light being emitted behind the LED bulb, can achieve 360° light output according to physical characteristics, without adding other reflective surfaces, saving material.

As a further improvement of the present invention, in order to solve the problem that the LED bulb will generate excessive heat after the LED lamp is turned on for a long time, and then the service life of the LED bulb is reduced, a turbine radiator is disposed above the lampshade. The LED light panel is disposed at a bottom of the turbine heat sink, and the lower end of the turbine heat sink is sleeved with a laminar flow cover, and the turbine heat sink includes a plurality of fins, each of the fins from bottom to top In a spiral shape, a predetermined gap is left between each adjacent two fins. The LED light on the LED light board is a heat source. After the power is turned on, the temperature of the LED light itself rises, and the heat generated by the LED light is transmitted to the turbine heat sink via the LED light board, so that the temperature of the turbine heat sink rises. As the hot air rises, the pressure in the space below the turbine radiator decreases, that is, the pressure in the space formed by the inner side wall of the lamp cover is reduced to form a negative pressure, and the negative pressure guides the cold air below the turbine radiator through the annular lampshade. The space formed by the inner side wall rises, and the cold air will take away the certain heat of the turbine radiator after the warmed turbine radiator, so that the turbine radiator cools down and forms a hot air with a certain temperature, and the laminar flow hood a narrow area formed by a predetermined gap left between each adjacent two fins, through which the hot air passes, and the hot air is rotated by the spiral fins, and the two fins from the upper portion The predetermined gap between the sheets is discharged, further increasing the air flow speed, and the air can flow rapidly, so that the heat energy on the turbine heat sink can be taken away in a large amount without increasing the surface area of the heat sink. Achieve rapid cooling, reducing material costs.

Preferably, the inner side wall of the lampshade has a flare shape with a port diameter and a small port diameter. Due to LED lights The generated heat source is directly supplied to the turbine radiator, and the heat of the turbine radiator is relatively large. The upper end of the inner side wall of the lamp cover is the portion closest to the turbine radiator, and the inner side wall of the lamp cover is arranged in a trumpet shape with a port diameter and a small port diameter. This makes a narrow passage at the bottom of the turbine radiator, which is more beneficial to the formation of negative pressure, speeding up the air flow rate and achieving better heat dissipation.

Preferably, the 360° illumination and the aerodynamic heat dissipation LED bulb further comprise a lamp connector, the lamp connector is connected to a top of the turbine radiator, and the lamp connector is provided with a constant current power source. The upper end of the lamp connector is provided with a screw base.

Preferably, the bottom of the turbine heat sink is provided with a light board mounting surface, and the light cover is fixedly mounted on the light board mounting surface.

Preferably, the transparent material is a PC material. Using PC material as the material of the lampshade, the lampshade has the advantages of high light transmission, high diffusion, high flame retardancy and high impact strength. The light transmittance can reach 94%, and the PC lamp cover is not brittle, making the LED lamp have anti-shock The characteristics of the light source can also be converted into a spherical light.

DRAWINGS

Figure 1 is a front cross-sectional view of the prior art;

2 is a front cross-sectional view of the embodiment with light reflection and directly emitted from the lamp cover;

Figure 3 is a front cross-sectional view showing the mounting surface of the lamp cover and the lamp board in the embodiment;

Figure 4 is a bottom view of the lampshade in the embodiment;

Figure 5 is a front cross-sectional view of the gas flow direction of the embodiment;

Fig. 6 is a plan view of the turbine type heat sink in the embodiment.

In the picture:

-光线，

-空气；

- light,

-air;

1'-shade; 2'-LED lamp; 3'-fin;

1-light cover; 11-outer side wall; 12-bottom wall; 13-inner side wall; 14-capacity; 2-LED lamp; 3-turbine radiator; 31-fin; 32-predetermined gap; Power supply; 5-lamp connector; 6-screw base; 7-layer flow cover; 8-lamp mounting surface;

I1, i2, i3-incident angle; r1, r2, r3-reflection angle; N1, N2, N3-normal;

S1-cold air; S2-LED lamp heat; S3-hot air.

detailed description

The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings, in which the advantages and features of the invention can be more readily understood by those skilled in the art.

Referring to Figures 2 to 4, a 360° illumination and aerodynamic cooling LED bulb of the present embodiment includes a lampshade 1 and an LED lamp panel having a plurality of LED lamps 2, and the material of the lampshade 1 is adopted. The transparent material is a PC material, and the lampshade 1 is annular. The upper end surface of the lampshade 1 has an opening and has a cavity 14 therein. The side section of the lampshade 1 has an inverted "n" shape, and the LED lamp panel is formed with the lampshade 1 A matching ring shape, an LED panel is placed at the opening of the lampshade 1, and the LED lamp 2 faces the cavity 14. In the present embodiment, the light having a larger incident angle i1 toward the outer side wall 11 of the globe 1 is reflected by the inner wall of the outer side wall 11 of the globe 1 to the circle by the principle that the incident angle of the light toward the transparent medium is larger and the reflectance is larger. On the inner wall of the arcuate bottom wall 12, light having a large incident angle i2 reflected on the inner wall of the arcuate bottom wall 12 is reflected by the inner wall of the bottom wall 12 of the globe 1 onto the inner wall of the inner side wall 13 and reflected to the inner side wall 13 The light of the larger incident angle i3 on the inner wall is reflected by the inner wall of the inner side wall 13 to the outer side wall 11, and some light having a smaller incident angle reflected on the outer side wall 11 is directly projected through the outer side wall 11 of the lampshade 1. Going out, passing through the inner wall of the outer side wall 11 of the inverted "n"-shaped lampshade 1, the inner wall of the arc-shaped bottom wall 12, and the inner wall of the inner side wall 13, thereby increasing the chance of light being emitted behind the LED bulb. Achieve 360° light output.

As shown in FIG. 5 and FIG. 6, a turbine radiator 3 is disposed above the lampshade 1, and the LED lamp panel is disposed at The bottom of the turbo radiator 3, specifically, the LED light board can be locked to the bottom of the turbine radiator 3 by screws, and the laminar flow cover 7 is sleeved at the lower end of the turbine radiator 3, and the turbine radiator 3 includes A plurality of fins 31, each of which is spiraled from bottom to top, with a predetermined gap 32 left between each adjacent two fins 31. Wherein, the LED lamp 2 on the LED lamp board is a heat source. After the power is on, the temperature of the LED lamp 2 itself rises, and the heat S2 emitted by the LED lamp 2 is transmitted to the turbine radiator 3 via the LED lamp board, so that the turbine radiator 3 When the temperature rises, the hot air S3 rises, causing the space pressure below the turbine radiator 3 to decrease to form a negative pressure, and the negative pressure guides the cold air S1 below the turbine radiator 3 to rise through the inside of the annular lampshade 1 and take away Part of the thermal energy on the turbine heat sink 3, and forming hot air S3, the hot air S3 passes through a narrow area formed by a predetermined gap 32 left between the laminar flow hood 7 and each adjacent two fins 31, through the spiral The fins 31 rotate the hot air S3 and discharge from the predetermined gap 32 between the two fins 31 at the upper end, further increasing the air flow speed, and the air can flow rapidly, so that the turbine radiator 3 can be carried away in a large amount. Thermal energy, so as to achieve the purpose of rapid cooling.

As shown in Fig. 2, Fig. 3, and Fig. 5, the inner side wall 13 of the globe 1 has a flared shape with a port diameter and a small port diameter.

As in the prior art, the LED bulb further includes a base connector 5, and the base connector 5 is connected to the top of the turbine radiator 3. The base connector 5 is provided with a constant current power source 4, and the base connector 5 is provided. A screw base 6 is provided at the upper end. Specifically, the cap connector 5 can be locked to the top of the turbo radiator 3 by screws, or the fixed connection can be realized by other means, and the output wire of the constant current power source 4 is soldered on the LED lamp board to realize the end. Electrically connected, the input line of the constant current source 4 is soldered to the screw base 6 and screwed into the base connector 5.

The bottom of the turbine radiator 3 is provided with a lamp mounting surface 8, and the lamp cover 1 is fixedly mounted on the lamp mounting surface 8. For specific use, it can be fixedly installed by means of adhesive bonding, which is convenient and quick, and other fixed installation methods can also be used.

The above embodiments are merely illustrative of the technical concept and the features of the present invention, and are intended to be understood by those skilled in the art and are not intended to limit the scope of the present invention. Equivalent changes or modifications made are intended to be included within the scope of the invention.

Claims (6)

LED bulb with 360° illumination and aerodynamic heat dissipation, comprising a lampshade (1) and an LED panel with a plurality of LED lamps (2), characterized in that the material of the lampshade (1) is transparent The lampshade (1) is annular, the upper end surface of the lampshade (1) has an opening and has a cavity (14) therein, and the side section of the lampshade (1) has an inverted "n" shape. The LED panel is in the shape of a ring matching the lampshade (1), the LED panel being disposed at the opening of the lampshade (1), the plurality of LED lamps (2) facing the cavity (14). The 360° illumination and aerodynamic heat dissipation LED bulb according to claim 1, wherein a turbine radiator (3) is disposed above the lampshade (1), and the LED panel is disposed. At the bottom of the turbine radiator (3), the lower end of the turbine radiator (3) is sleeved with a laminar flow hood (7), and the turbine radiator (3) includes a plurality of fins (31). Each of the fins (31) is spiraled from bottom to top, and a predetermined gap (32) is left between each adjacent two fins (31). The LED bulb of 360° illumination and aerodynamic heat dissipation according to claim 1 or 2, wherein the inner side wall of the lampshade (1) has a flared shape with a port diameter and a small port diameter. The 360° illumination and aerodynamic heat dissipation LED bulb according to claim 2, further comprising a base connector (5), the base connector (5) and the turbine radiator (3) The top of the lamp connector (5) is provided with a constant current source (4), and the upper end of the cap connector (5) is provided with a screw base (6). The 360° illumination and aerodynamic heat dissipation LED bulb according to claim 2, wherein the bottom of the turbine radiator (3) is provided with a lamp mounting surface (8), the lampshade (1) Fixedly mounted on the lamp mounting surface (8). The 360° illumination and aerodynamic heat dissipation LED bulb according to claim 1, wherein the transparent material is a PC material.

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