TWI435028B - Lighting bulbs - Google Patents

Description

Lighting bulb

A lighting bulb, especially an illumination bulb that can improve the heat dissipation effect.

Generally, the tungsten filament bulb is made of tungsten wire as a light source, and the structure is simple, and the installation and replacement are quite convenient. The structure of the tungsten filament bulb is usually fixed at the end of the spherical bulb, and the adapter has a thread. It can be screwed into a general bulb holder. When the power is turned on, the tungsten wire disposed in the lamp cover can be heated to emit light, and the light penetrates the lamp cover and is irradiated to the outside to achieve the purpose of illumination. However, during the operation of the tungsten light bulb to generate illumination light, a large amount of heat energy is also generated, which is quite power-consuming, wastes energy, and the tungsten wire is easily burned to shorten the service life of the tungsten filament bulb.

With the advancement of technology, the light-emitting diode is a solid-state light source that can convert power into light energy. The light-emitting diode has the characteristics of small volume, low driving voltage, fast reaction rate, shock resistance, long life, and the like, and the light bulb type light-emitting diode lamp gradually replaces the tungsten light bulb as the electronic component becomes thinner and lighter and shorter. It has become a large and widely used lighting device.

The conventional bulb-type light-emitting diode lamp is mainly composed of a circuit board, a plurality of light-emitting diodes electrically connected to the circuit board, and a light-transmitting cover of each of the light-emitting diodes of the cover, and an aluminum-extruded heat sink. And a joint fixed to the heat sink. However, since the heat energy generated by such a bulb-type LED lamp can only be conducted to the outside by the heat sink in a heat conduction manner, the heat dissipation effect is limited.

The main object of the present invention is to provide an illumination bulb which forms a heat dissipation opening at the center, and the heat energy generated by the LED can be dissipated by heat convection to accelerate heat dissipation.

To achieve the above objective, the illumination bulb of the present invention comprises a lighting module, a heat dissipation module, a lamp holder, a plurality of struts and an electrical connection component. The heat dissipation module includes an annular heat sink and a plurality of heat dissipation fins. The light-emitting module is disposed on one side of the ring-shaped heat sink. A through hole is formed at the center of the annular fin. Each of the heat dissipating fins is formed on the annular heat sink in a radial arrangement manner, and a gap is formed between each of the heat dissipating fins, and a vent hole is formed in a radiation center of each of the heat dissipating fins, the vent hole, the gap and The perforations are in communication with one another. The lamp holder is disposed on the other side of the annular heat sink. The struts are connected to the seat body and the heat dissipation fins. The electrical connection element is disposed on the other side of the base.

The heat sink fins are U-shaped.

Wherein, one end of each of the heat dissipating fins forms a first recessed groove, and the other end forms a second recessed groove, wherein the first recessed groove is provided with an outer ring end surface of the annular heat sink embedded therein, the second recessed groove The inner ring end surface of the annular heat sink is embedded therein.

Wherein, the lamp holder comprises a cover body and a cup body, and the cover system is disposed on one side of the cup body.

The annular heat sink has a plurality of first fastening holes, and the cover body has a plurality of second fastening holes, and each of the struts is formed by a position of one of the heat dissipation fins corresponding to the position of each of the first fastening holes The outer edge extends and a fastening portion is formed at one end of each of the struts for fastening in each of the second fastening holes, and a spacing is formed between the cover and each of the heat dissipation fins.

The electrical connection component has a first electrical connection unit and a second electrical connection unit, and the first electrical connection unit is screwed to the inner side of the second electrical connection unit.

The light-emitting module includes a ring-shaped lamp cover, a plurality of light-emitting diodes, and a ring-shaped circuit board. The ring-shaped circuit board is disposed on one side of the annular heat sink, and the light-emitting diode system is disposed on the ring-shaped circuit board. The ring cover is disposed on the annular circuit board.

In order for your review board to have a clear understanding of the contents of the present invention, please refer to the following description for matching drawings.

Please refer to FIG. 1 , FIG. 2 , FIG. 3 and FIG. 4 , which are schematic views of an exploded view, a combined view, a cross-sectional view and another embodiment of a heat dissipation module according to a preferred embodiment of the illumination bulb of the present invention. In the figure, the illumination bulb 1 comprises a light-emitting module 11 , a heat dissipation module 12 , a lamp holder 13 , a plurality of struts 14 and an electrical connection element 15 .

The light-emitting module 11 has a ring-shaped lamp cover 111, a plurality of light-emitting diodes 112, and a ring-shaped circuit board 113. The light emitting diodes 112 are spaced apart from the annular circuit board 113. The ring-shaped lamp cover 111 can be made of a light-transmitting material such as plastic or glass, and is disposed on the annular circuit board 113. A first hole 1111 is formed in the center of the annular lamp cover 111. A second hole 114 is formed in the center of the annular circuit board 113, and the first hole 1111 corresponds to the second hole 114.

The heat dissipation module 12 includes an annular heat sink 121 and a plurality of heat dissipation fins 122.

A plurality of first fastening holes 1211 are formed on the annular heat dissipation fins 121, and a through hole 1212 is formed at the center. The first fastening holes 1211 can be locked on the annular circuit board 113. In this embodiment, the annular heat sink 121 can be made of a heat conductive plastic, but not limited thereto, and can also be made of heat conductive ceramic or metal.

The heat dissipating fins 122 are the same as the annular fins 121 and can be made of a thermally conductive plastic or made of a thermally conductive ceramic or metal. Each of the heat dissipating fins 122 has a U shape. When the annular heat dissipating fins 121 and the heat dissipating fins 122 are made of a plastic material, the annular heat dissipating fins 121 and the heat dissipating fins 122 are formed in a radial shape. A vent hole 123 is formed in the radiation center of each of the heat dissipation fins 121, and a gap 124 is formed between each of the heat dissipation fins 122. In other embodiments, when the heat dissipation fins 122 and the annular heat dissipation fins 121 are made of different materials and are different components, the heat dissipation fins 122 can form a first recessed groove 1221 at one end. The other end forms a second recess 1222. Each of the first recessed slots 1221 can be disposed in the outer ring end surface of the annular heat sink 121, and each of the second recessed slots 1222 can be embedded in the inner ring end surface of the annular heat sink 121. A vent hole 123 can be formed in the center of the heat dissipation module 12 by the structure of the annular heat sink 121 and the heat dissipation fins 122.

The lamp holder 13 is provided with the heat dissipation module 12 and includes a cover body 131 and a cup body 132. A plurality of second fastening holes 1311 are formed on the top surface of the cover body 131. The cover 131 is covered on one side of the cup 132.

One end of the struts 14 is formed with a fastening portion 142. The fastening portion 142 is fastened in the second fastening hole 1311 to fix the heat dissipation module 12 and the socket 13 and the cover 131 A spacing is formed between each of the heat dissipation fins 122 to allow air to naturally flow into the heat dissipation module 12. In this embodiment, if the struts 14 and the heat dissipating fins 122 are made of the same plastic material, the struts 14 can be formed by plastic injection molding from one end of each of the heat dissipating fins 122. Integrally formed downwardly from a position corresponding to each of the first button holes 1211. When it is made of different materials, it can be buckled for a part of each of the heat dissipation fins 122 corresponding to each of the first fastening holes 1211.

The electrical connection component 15 can transfer electrical energy to the annular circuit board 113 and has a first electrical connection unit 151 and a second electrical connection unit 152. The first electrical connection unit 151 is screwed to the inner side of the second electrical connection unit 152 in an electrical connection manner.

Please refer to FIG. 5, which is a schematic diagram of the heat convection of the preferred embodiment of the illumination bulb of the present invention. When the illumination bulb is in use, since the air gap 124 is formed between the heat dissipation fins 122, when the air in the vicinity of the light-emitting diode 112 is heated and dissipated, the cold air may be separated by the gap 124 between the heat dissipation fins 122. The venting hole 123 and the through hole 1212 of the annular fin 121, the first hole 111 and the second hole 114 are connected to each other to form a flow guiding channel which naturally flows through the inner side and the outer side of the heat dissipation module 12 to form a heat convection effect. Compared with the conventional lamps, the heat dissipation efficiency is more excellent, and the service life can be improved.

Please refer to FIG. 6 and FIG. 7 , which are a first schematic diagram and a second schematic diagram of a second embodiment of the illumination bulb of the present invention. In the figure, the lighting bulb 2 is composed of a lighting module 21, a heat dissipation module, a lamp holder, a plurality of struts 24 and an electrical connection component 25.

In this embodiment, the heat dissipation module is composed of a plurality of heat dissipation units 221, and each of the heat dissipation units is composed of a plurality of arc fins and a plurality of heat dissipation fins, and the illumination module 21 is composed of a plurality of heat dissipation modules. An arc-shaped lampshade 231, a plurality of light-emitting diodes (not shown), and a plurality of arc-shaped circuit boards (not shown), each of the struts 24 further has a pivoting portion 241, the pivoting portion The 241 is for pivoting each of the heat dissipation units 221 such that the heat dissipation units 221 can be rotated inward or outward.

When each of the pivoting portions 241 is fixed and held in the home position, each of the heat dissipating units 221 and the arcuate lampshades 231 are brought into close proximity to each other, and the illumination angle thereof is the same as that of the first embodiment. When each of the pivoting portions 241 is rotated and deployed outward, each of the heat dissipating units 221 and the arcuate lampshades 231 are separated, so that the illumination angle of the illumination bulb can be wider.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and the equivalent changes and modifications may be included in the present invention without departing from the spirit and scope of the invention. Within the scope of the invention patent.

In summary, the lighting bulb of the present invention has the patented creasibility and the value of the use of the industry; the applicant filed a new patent application with the shackle in accordance with the provisions of the Patent Law.

1. . . Lighting bulb

11. . . Light module

111. . . Ring lampshade

1111. . . First hole

112. . . Light-emitting diode

113. . . Ring circuit board

114. . . Second hole

12. . . Thermal module

121. . . Ring heat sink

1211. . . First buttonhole

1212. . . perforation

122. . . Heat sink fin

1221. . . First slot

1222. . . Second slot

123. . . Vent

124. . . Void

13. . . Lamp holder

131. . . Cover

1311. . . Second buttonhole

132. . . Cup

14. . . Pole

142. . . Fastening

15. . . Electrical connection element

151. . . First electrical connection unit

152. . . Second electrical connection unit

2. . . Lighting bulb

221. . . Cooling unit

231. . . Curved lampshade

twenty four. . . Pole

241. . . Pivot

25. . . Electrical connection element

Figure 1 is an exploded view of a preferred embodiment of a lighting bulb of the present invention.

Figure 2 is a combination view of a preferred embodiment of a lighting bulb of the present invention.

Figure 3 is a cross-sectional view showing a preferred embodiment of the illumination bulb of the present invention.

4 is a schematic view of another embodiment of a lighting bulb heat dissipation module of the present invention.

Figure 5 is a schematic diagram of thermal convection of a preferred embodiment of a lighting bulb of the present invention.

Figure 6 is a first schematic view of a second embodiment of the illumination bulb of the present invention.

Figure 7 is a second schematic view of a second embodiment of the illumination bulb of the present invention.

1. . . Lighting bulb

11. . . Light module

111. . . Ring lampshade

1111. . . First hole

112. . . Light-emitting diode

113. . . Ring circuit board

114. . . Second hole

12. . . Thermal module

121. . . Ring heat sink

1211. . . First buttonhole

1212. . . perforation

122. . . Heat sink fin

123. . . Vent

124. . . Void

13. . . Lamp holder

131. . . Cover

1311. . . Second buttonhole

132. . . Cup

14. . . Pole

142. . . Fastening

15. . . Electrical connection element

151. . . First electrical connection unit

152. . . Second electrical connection unit

Claims (9)

An illumination light bulb comprising: a light-emitting module; a heat-dissipating module disposed on one side of the light-emitting module, comprising: an annular heat sink, wherein the light-emitting module is disposed on one side of the annular heat sink A hole is formed in a center of the annular heat sink; a plurality of heat dissipation fins are formed on the annular heat sink in a radial arrangement, and a gap is formed between each of the heat dissipation fins, and a radiation center of each of the heat dissipation fins Forming a vent hole, the vent hole and the through hole are connected to each other; and a lamp holder is disposed on the other side of the annular heat sink; a plurality of struts are connected to the lamp holder and the heat dissipation fin And an electrical connecting component disposed on the other side of the socket, wherein each of the struts further has a pivoting portion for adjusting an illumination angle of the illumination bulb. The lighting bulb of claim 1, wherein the fins are U-shaped. The lighting bulb of claim 1, wherein the lamp socket comprises a cover body and a cup body, and the cover system is disposed on one side of the cup body. The illuminating light bulb of claim 3, wherein the annular heat sink has a plurality of first fastening holes, the cover body has a plurality of second fastening holes, and each of the struts is a part of the heat dissipation fins One end of the piece corresponds to the position of each of the first button holes and extends outward, and one end of each of the struts A fastening portion is formed for fastening each of the second fastening holes. The illumination bulb of claim 4, wherein a gap is formed between the cover and each of the heat dissipation fins. The lighting bulb of claim 1, wherein the electrical connecting component has a first electrical connecting unit and a second electrical connecting unit, the first electrical connecting unit being screwed to the second electrical connecting unit The inside. The illumination light bulb of claim 1, wherein the light-emitting module comprises a ring-shaped lamp cover, a plurality of light-emitting diodes and a ring-shaped circuit board, the ring-shaped circuit board being disposed on one side of the annular heat sink The light emitting diode system is disposed on the annular circuit board, and the annular light cover is disposed on the annular circuit board. The illumination bulb of claim 1, wherein one end of each of the heat dissipation fins forms a first recessed groove, and the other end forms a second recessed groove, wherein the first recessed groove is provided by the annular heat sink. An outer ring end surface is embedded therein, and the second recess is configured to embed an inner ring end surface of the annular heat sink therein. An illumination light bulb comprising: a light-emitting module; a heat-dissipating module disposed on one side of the light-emitting module, comprising: a plurality of arc-shaped heat sinks, wherein the light-emitting module is disposed on the arc-shaped heat sink On one side, a perforation is formed at the center of the arc fins; a plurality of fins are formed in a radial arrangement Forming a gap between each of the heat dissipation fins, and forming a vent hole at a radiation center of each of the heat dissipation fins, the vent hole, the gap and the through hole are connected to each other; and a lamp holder Is disposed on the other side of the arc fins; a plurality of struts are connected to the lamp holder and the heat dissipation fins, each of the struts having a pivoting portion, the pivoting portion being pivotally connected Each of the arcuate fins; and an electrical connecting component are disposed on the other side of the socket; wherein each of the fins is outwardly deployed when each of the pivoting portions is rotated outwardly, To adjust the illumination angle of the illumination bulb.