WO2012149820A1

WO2012149820A1 - Led light bulb

Info

Publication number: WO2012149820A1
Application number: PCT/CN2011/082265
Authority: WO
Inventors: 王冬雷
Original assignee: 广东德豪润达电气股份有限公司
Priority date: 2011-05-05
Filing date: 2011-11-16
Publication date: 2012-11-08
Also published as: CN202091827U

Abstract

An LED light bulb, successively including a light distribution module (11), a light source module (12), a heat dissipation module (13) and an electricity connection device (15). The light distribution module (11) and the light source module (12) are fixed each other, the heat dissipation module (13) includes a hollow structural member formed by more than one metal plate, the electricity connection device (15) is located at the top of the heat dissipation module (13), and the light distribution module (11) is located at the bottom of the heat dissipation module (13), and the light source module (12) is fixed at the inner end of the light distribution module (11). Concave and convex structures of a strip shape are arranged on the outer side wall of the heat dissipation module (13). The LED light bulb connects the utility power to a switching power supply (142) via the electricity connection device (15) and then adjusts the work parameter required by the light source module (12), the heat is dissipated through a dual channel of the heat dissipation module (13), and the light distribution module (11) is used to adjust the lighting required in households, business and industries. The LED light bulb can be used for assembling a lamp socket with IEC standards and can exchange the heat generated by the LED light source with the outside promptly, which makes the cost of the product lower, and performance better, thereby prolonging the service life of the product.

Description

LED bulb

Technical field

The utility model belongs to the technical field of LED lighting, in particular to an LED light bulb. Background technique

Traditional tungsten and fluorescent lamps and HID lamps are an important part of home and commercial and industrial lighting, but they all have the disadvantages of containing a lot of harmful substances, energy consumption and short life. From the advent of the first commercial LEDs to today, there is another revolution in the field of lighting sources. With the maturity of LED technology, its advantages of energy saving, environmental protection and long life are more and more perfect. At the same time, in the use of light sources and lamps, the high heat generated by LED work is an important factor that restricts the performance of LEDs. Similarly, the LED type of LED is not suitable for direct illumination. The structure of LED bulbs has become a lot of relevant people. Research topic,

In the prior art, a plurality of LED light sources are combined with a lens module for pressure casting and extruded profiles for structural processing. This method is effective, but it is not the most optimized method. In particular, this method causes a large amount of hot air to be collected inside the lamp, so that the module of the light source is in a high temperature environment for a long time, which is not conducive to the life of the product. The existing way to solve this problem is to increase the heat dissipation area, thereby increasing at the same time. The weight of the material creates a safety hazard, and the complexity of the processing process causes the cost to rise linearly. At the same time, the lens module has a large loss of the device during use. Due to the long time, it is directly exposed to the air. The lens is liable to become yellow and brittle due to material properties, resulting in low light utilization. These solutions are not the most ideal choice from a cost-effective perspective. Summary of the invention

The purpose of the utility model is to provide an LED light bulb, which can heat the heat generated by the LED light source to the outside world in time, so that the product cost is lower, the performance is better, and the service life of the product is prolonged.

The utility model is realized by the following technical solutions:

An LED light bulb, which in turn comprises a light distribution module, a light source module, a heat dissipation module and a power receiving device, wherein the light distribution module and the light source module are fixed to each other; wherein the heat dissipation module includes more than one piece The hollow structural member formed by the metal sheet, the power receiving device is located at the top end of the heat dissipation module, and the light distribution module is located at the bottom end of the heat dissipation module; the light source module is fixed at the inner end of the light distribution module.

The outer sidewall of the heat dissipation module is provided with a strip-shaped concave-convex structure.

The beneficial effects of the utility model are as follows:

An LED bulb of the present invention, the heat dissipation module includes a hollow knot formed by more than one metal sheet The component is connected to the top of the heat dissipation module, and the light distribution module is located at the bottom end of the heat dissipation module; the light source module is fixed at the inner end of the light distribution module; and the switch for connecting the utility power to the LED light bulb through the power receiving device The power supply is then adjusted to the required operating parameters of the light source module. After the heat dissipation of the heat dissipation module, the light distribution module is used to adjust the lighting required for home, commercial, and industrial use. The heat dissipation module discards the die-casting, the aluminum extruded profile heat sink, and uses the metal plate as the heat dissipation module substrate, and is formed into a desired bulb shape by various processing processes, and the new structure makes the product cost lower. Lighter weight and better performance, which will speed up the pace of LED bulbs entering ordinary people's homes. The utility model belongs to the field of illumination light sources, in particular to an illumination type light bulb using a light-emitting diode as a light source, which is used for replacing the traditional ANSI standard shape of the incandescent, halogen, fluorescent, HID (xenon lamp) illumination mode and the non-ANSI standard specification shape. The shape of the bulb is suitable for use in any place such as home, business, industry, etc. DRAWINGS

1 is a schematic overall structural view of a first embodiment of an LED bulb according to the present invention;

2 is a schematic view showing the internal structure of a first embodiment of an LED light bulb according to the present invention;

3 is a partial cross-sectional structural view showing a first embodiment of an LED light bulb according to the present invention;

4 is a schematic exploded view of a first embodiment of an LED bulb according to the present invention;

5 is a schematic overall structural view of a second embodiment of an LED light bulb according to the present invention;

6 is a schematic view showing the internal structure of a second embodiment of an LED light bulb according to the present invention;

7 is a schematic exploded view of a second embodiment of an LED light bulb according to the present invention.

Description of the reference signs:

11, light distribution module, 12, light source module, 13, heat dissipation module, 14, power module, 15, power supply, 11L glass cover, 112, reflector, 121, LED, 122, silicone pad, 123 , screw, 131, heat sink, 132, housing, 141, upper wire, 142, switching power supply, 143, lower wire, 151, lamp lining, 152, lamp holder, 21, light distribution module, 22, light source module, 23, heat dissipation module, 24, power module, 25, power supply device, 211, optical diffuser, 221, LED, 222, aluminum substrate, 223, screw, 231, heat sink, 232, housing, 241, upper wire , 242, switching power supply, 243, lower wire, 251, lamp lining, 252, lamp cap. detailed description

The utility model discloses an LED light bulb, which in turn comprises a light distribution module, a light source module, a heat dissipation module and a power receiving device, wherein the light distribution module and the light source module are fixed to each other; wherein the heat dissipation module The group includes a hollow structural member formed by one or more metal sheets, the power receiving device is located at a top end of the heat dissipation module, and the light distribution module is located at a bottom end of the heat dissipation module; The light source module is fixed at the inner end of the light distribution module.

The hollow structural member of the heat dissipation module is made of a metal plate having a thickness of 0.1 mm to 2 mm.

The light distribution module includes a single or a plurality of reflective cups, and the reflective cup is formed by combining a plurality of reflective surfaces according to an optical axis; the reflective surface is independently matched by optically treated glass or optical plastic or glass. Made of light.

The light source module comprises a single or a plurality of patch LEDs combined in an array of brackets.

The power receiving device is connected to the heat dissipation module by means of a snap-fit assembly.

Embodiment 1:

Referring to FIG. 1 to FIG. 4 , the first embodiment of the LED bulb of the present invention is composed of a power receiving device 15 , a heat dissipation module 13 fixed on the power receiving device 15 , and a light distribution module fixed on the heat dissipation module 13 . 11 and 3 are sectional views of the first embodiment of the utility model light bulb. It can be seen that the LED light bulb further includes: a power module 14 and a light source module 12, and the power module 14 is located in the inner cavity of the heat dissipation module 13. in.

4 is a schematic exploded view of the first embodiment of the present invention; the power module 14 includes a base 152 for connecting an external power source and a switching power supply, a lamp lining 151, a connecting lamp cap and a switch. a lower wire 143 of the power source, a switching power source 142 capable of converting the external power source into a light source module, and an upper wire 141 connecting the switching power source and the light source module, and the lamp head lining 151 is fixed on the lamp cap 152; the lamp cap conforms to the IEC standard; The heat dissipation module 13 includes a housing 132 that is fixed, connected, and thermally conductive, and a heat sink 131 that houses the light source module. The light source module is fixed by screws 123. The light source module 12 includes a thermal conductive insulating silicone pad 122 and a matrix arrangement. The LED 121 and the LED 121 are attached to the silicone pad 122. The light distribution module 11 includes a reflector cup 112 for light distribution, and a glass cover 111 for assisting light distribution and dustproofing. The glass cover 111 is located at the outermost end.

Embodiment 2

Referring to FIG. 5 to FIG. 7 , the second embodiment of the present invention is composed of a power receiving device 25 , a heat dissipation module 23 and a light distribution module 21 , and the heat dissipation module 23 is fixed on the power receiving device 25 . The group 21 is fixed above the heat dissipation module 23; FIG. 6 is a cross-sectional view of the second embodiment of the utility model light bulb. It can be seen that the LED light bulb further includes: a power module 24 and a light source module 22, and the power module 24 is located in the heat dissipation module. In the inner cavity of the group 23, the light source module 22 is located at a bonding area of the light distribution module 21 and the heat dissipation module 23; see FIG. 7, which is a structural exploded view of the second embodiment of the LED light bulb of the present invention; A lamp cap 252 for connecting an external power source and a switching power source, a lamp cap liner 251, a lower wire 243 connecting the lamp cap and the switching power source, a switching power source 242 for converting an external power source into a light source module, and a connection switch power source and a light source module The wire 241 and the lamp lining 251 are fixed on the lamp cap 252, and the lamp cap conforms to the IEC standard; the heat dissipation module 23 includes a casing 232 for fixing, connecting and conducting heat, and a radiator for placing the light source module. 231 and a fixed light source module screw 223; the light source module 22 includes an aluminum substrate 222 capable of thermal insulation and an LED 221 fixed on the aluminum substrate 222 and arranged in an annular array; the light distribution module 21 includes optical astigmatism for light distribution The cover 211 has a hemispherical structure.

The specific implementations listed above are non-limiting, and various modifications and changes made by those skilled in the art without departing from the scope of the present invention are within the scope of the present invention.

Claims

Rights request

An LED light bulb, which in turn comprises a light distribution module, a light source module, a heat dissipation module and a power receiving device, wherein the light distribution module and the light source module are fixed to each other; and the heat dissipation module The utility model comprises a hollow structural member formed by one or more metal plates, wherein the power receiving device is located at a top end of the heat dissipation module, the light distribution module is located at a bottom end of the heat dissipation module, and the light source module is fixed at an inner end of the light distribution module.

2. The LED light bulb according to claim 1, wherein: the outer side wall of the heat dissipation module is provided with a strip-shaped concave-convex structure.

The LED light bulb according to claim 1 or 2, wherein the hollow structural member of the heat dissipation module is made of a metal plate having a thickness of 0.1 mm to 2 mm.

The LED light bulb according to claim 3, wherein: the light distribution module comprises a single or a plurality of reflective cups, and the reflective cup is formed by combining a plurality of reflecting surfaces according to an optical axis rotation manner. The reflective surface is made of optically treated glass or optical plastic or glass independently.

The LED light bulb of claim 3, wherein: the power receiving device and the heat dissipation module are connected by a snap-fit assembly.

The LED light bulb of claim 4, further comprising: a power module disposed in the inner cavity of the heat dissipation module.

7. The LED light bulb of claim 6, wherein: the light source module comprises a single or a plurality of patch LEDs combined in an array of brackets.

The LED light bulb of claim 7, wherein: the power module comprises a lamp head connected to an external power source and a switching power source, a lamp head lining, a lower wire connecting the lamp cap and the switching power source, and the external power source is provided. The switching power supply that is converted into the working of the light source module and the upper wire connecting the switching power supply and the light source module, the inner lining of the lamp cap is fixed on the lamp cap; the heat dissipating module comprises a casing for fixing, connecting, heat conducting and dissipating heat of the light source module. The light source module is fixed by screws.

9. The LED light bulb of claim 8, wherein: the light source module (12) comprises a thermally conductive insulating silicone pad (122) and a matrix array of LEDs (121), the LED (121) being attached to The silicone module (122); the light distribution module (11) includes a reflector (112) for light distribution, and a glass cover (111) for auxiliary light and dust protection, and the glass cover (111) is located at the outermost end.

The LED light bulb according to claim 8, wherein: the light source module (22) comprises an aluminum substrate (222) capable of thermally insulating and insulating, and is fixed on the aluminum substrate (222) and arranged in an annular array. The LED (221); the light distribution module (21) includes an optical diffuser (211) for light distribution, and the optical diffuser (211) has a hemispherical structure.