CN201344405Y

CN201344405Y - LED lamp bulb

Info

Publication number: CN201344405Y
Application number: CNU2009201300027U
Authority: CN
Inventors: 黄鹤鸣
Original assignee: SHENZHEN COLLECTION ENTERPRISES CO Ltd
Current assignee: Shenzhen Juzuo Lighting Co.,Ltd.
Priority date: 2009-02-13
Filing date: 2009-02-13
Publication date: 2009-11-11
Anticipated expiration: 2019-02-13

Abstract

The utility model discloses an LED lamp bulb, which comprises a lamp cap, a lamp body and a lampshade. An LED light source is mounted at one end of the lamp body, while the other end thereof is connected with the lamp cap; the lampshade is a transparent bubble-shaped shade which covers the LED light source and is connected with the lamp body; the lamp body comprises a metal cylinder; fin-shaped radiating fins are arranged out the metal cylinder; a base of the LED light source is mounted on an inner cavity at one end of the metal cylinder in an embedded manner; and a ventilation hole leading to the radiating fins is also formed on the wall of the inner cavity. The utility model has the beneficial effects that the radiating fins are arranged outside the lamp body; the base of the LED light source is embedded in the lamp body; so that the heat conduction velocity is multiplied; and the radiating fins are designed as fin-shaped structures, thereby effectively increasing the radiating surface area. In addition, the ventilation hole is additionally arranged in the inner cavity of the lamp body, so that the function of air convection is generated on the basis of an active-cooling manner; and air currents around the fin-shaped structures are forcibly sucked in the fin-shaped structures, so that the utilization rate of the air currents is effectively improved, and heat in the inner cavity of a heat conductor is easily emitted to air.

Description

A kind of LED bulb

Technical field

The utility model relates to a kind of lighting, particularly a kind ofly will make the bulb of light source of LED, and this bulb has a lamp body that heat-sinking capability is strong.

Background technology

Light emitting diode (light-emitting diode LED) can send the light of certain brightness, and brightness can be regulated by electric current or voltage again, and itself is shock-resistant again, anti-vibration, and glow color is very abundant, and the transition of color is very soft.Simultaneously service life long especially, it is reported life-span of LED lamp be ordinary incandescent lamp 20-30 doubly, be more than 10 times of conventional fluorescent lamps life-span, led light source is than incandescent lamp economize on electricity 87%, than fluorescent lamp economize on electricity 50% simultaneously.Led light source because of have energy-saving and environmental protection, long-life, safety, response is fast, volume is little, rich color, serial distinct advantages such as controlled, the best of falling energy consumption that is considered to economize on electricity realizes approach.Therefore the LED lamp becomes the main force of city lighting, also more and more uses on the lighting simultaneously.Occurred the profile LED bulb similar with incandescent lamp on the market, these LED bulbs all have the bullate lampshade of lamp holder, power circuit, led light source and protection led light source basically, therefore are called the LED bulb.The general volume of LED bulb is less, and brightness is higher, but when luminous, led chip can convert the part electric energy to heat energy, the electric energy ratio of heat energy is little though phase dialogue baking lamp converts to, and led chip can not be worked under very high temperature, therefore need dispel the heat to around the LED lamp.The LED heat dispersion is bad on the market now, has reduced bulb service life.

Summary of the invention

Bad for the heat dispersion that overcomes LED bulb in the prior art, reduced the above-mentioned deficiency of bulb service life, the utility model provides a kind of LED bulb to radiator with the performance of better loosing.

The utility model is that the technical scheme that its technical problem of solution is adopted is a kind of LED bulb, comprise lamp holder, lamp body and lampshade, described lamp body one end is installed led light source, the other end and described lamp holder join, described lampshade is the transparent bullate cover of likeness in form, cover on the described led light source, join with described lamp body; Described lamp body comprises metal cartridge, and the fin of described metal cartridge peripheral hardware fin shape is inlayed the base that described led light source is installed on the one end inner chamber.

Further, on described lamp body internal chamber wall, also be provided with the air vent that leads to described fin.

The beneficial effects of the utility model are, the external fin of lamp body, and the led light source base is inlayed wherein, increases heat conduction velocity.Thereby the heat that heater sends is absorbed on the fin to greatest extent.Heat sink design becomes fin shape structure, increase at double cooling surface area.Simultaneously, the lamp body inner chamber increases air vent and increase cross-ventilated function on active heat removal mode basis, the flow area of rationally utilizing air to suck and export, the air-flow of fin shape structure periphery is sucked by force, the utilization rate of more effective raising air-flow helps the heat of heat carrier inner chamber the most effective the fastest loosing in air.Cavity temperature in also reducing increases the inner chamber usage space.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

Fig. 1 is a utility model embodiment bulb structure schematic diagram.

Fig. 2 is the lamp body cutaway view that is added with radiator among the utility model embodiment.

Fig. 3 is a lamp body outside radiator end face schematic diagram among the utility model embodiment.

Fig. 4 is the outer side radiator stereogram of lamp body among the utility model embodiment.

Among the figure: 1, lamp holder, 2, lamp body, 20, metal column, 21, fin, 22, base, 23, air vent, 3, lampshade.

Specific embodiment

Embodiment 1, as shown in Figure 1: a kind of LED bulb, comprise lamp holder 1, lamp body 2 and lampshade 3, lamp body 2 one ends are installed led light source, and the other end and lamp holder 1 join, and lampshade 3 is the transparent bullate cover of likeness in form, covers on the described led light source, joins with lamp body.Lamp body 2 as shown in Figure 2, comprise metal cartridge 20, the fin 21 of metal cartridge 20 peripheral hardware fin shapes is inlayed the base 22 that led light source is installed on the metal cartridge 20 1 end inner chambers, also be provided with the air vent 23 that leads to described fin 21 on metal cartridge 20 internal chamber walls.The shape of fin as shown in Figure 3, Figure 4.

The effect of lamp body in present embodiment LED bulb mainly contains two partly, the first supports the lampshade on institute's led light source and the light source, another important effect is exactly that the heat that led light source is sent out is given out with the fastest speed, makes led light source keep lower operating temperature.Should adopt the enough intensity and the metal material of heat conductivility preferably, preferred 6063 high aluminium alloys of thermal conductivity factor in the present embodiment as the metal cartridge 20 of lamp body 2.The base that led light source is installed also is the key of heat conduction, and the heat major part of LED all is transmitted to lamp body by base and is transmitted in the fin by lamp body, and therefore, base also is a good heat conductivity to the requirement of material, and requirement simultaneously can closely contact with led light source.Preferred aluminium sheet in the present embodiment.

The main feature of present embodiment is: with 6063 high aluminium alloys of thermal conductivity factor, fin structure designs as radiator; It is moderate that the one side of radiator is inlayed full aluminium backing thickness, and cut surface is also very smooth, closely contacts with led light source heating face, increases heat conduction velocity.Thereby absorb the heat that heater sends on the heat carrier to greatest extent; The another side radiating surface of heat carrier is designed to fin shape structure, such design increase at double the cooling surface area of heat carrier.Inner chamber increases groove and increase cross-ventilated function on active heat removal mode basis, the flow area of rationally utilizing air to suck and export, employing sucks the air-flow of fin shape structure periphery by force, the utilization rate of more effective raising air-flow helps the heat of heat carrier inner chamber the most effective the fastest loosing in air.Cavity temperature in also reducing increases the inner chamber usage space.

Claims

1. LED bulb, comprise lamp holder (1), lamp body (2) and lampshade (3), described lamp body (2) one ends are installed led light source, the other end and described lamp holder (1) join, described lampshade (3) is the transparent bullate cover of likeness in form, cover on the described led light source, join with described lamp body; It is characterized in that: described lamp body (2) comprises metal cartridge (20), and the fin (21) of described metal cartridge (20) peripheral hardware fin shape is inlayed the base (22) that described led light source is installed on the one end inner chamber.

2. LED bulb according to claim 1 is characterized in that: also be provided with the air vent (23) that leads to described fin (21) on described lamp body (2) internal chamber wall.

3. LED bulb as claimed in claim 1 is characterized in that: described base (22) is the plane aluminium sheet.