CN201925757U

CN201925757U - LED lamp bulb

Info

Publication number: CN201925757U
Application number: CN2010206080312U
Authority: CN
Inventors: 马国富
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-11-16
Filing date: 2010-11-16
Publication date: 2011-08-10
Anticipated expiration: 2020-11-16

Abstract

The utility model relates to an LED lamp bulb, which has improved heat dissipation effect and comprises a lamp base, a lamp cap, a driving circuit board, an LED luminous body, a lampshade and a radiator. The lamp base is connected with the lamp cap, the driving circuit board is mounted in the lamp base, the radiator is mounted outside the lamp base, the LED luminous body is mounted in the radiator and electrically connected with the driving circuit board, the lampshade is connected with the radiator, the radiator comprises a cylinder which is formed by radiating fins in a spaced surrounding manner and of a certain taper, wherein radiating faces of the radiating fins are parallel to the radial direction of the cylinder. The radiating faces of the radiating fins are arranged vertically so that radiating area is expanded. Further, a venting passage is formed so that heat dissipation is improved and service life of an LED lamp is prolonged.

Description

A kind of LED bulb lamp

Technical field

The utility model relates to light fixture and makes the field, and in particular, the utility model is about improving a kind of LED bulb lamp of LED lamp heat radiation.

Background technology

At present, very extensive as the lighting source application with LED, power is increasing.Compare with ordinary incandescent lamp, that the LED bulb lamp has is energy-efficient, recyclable, high-color rendering, long advantage of life-span.Yet when the power of LED illuminator was big, the caloric value of its drive circuit was very big, has influenced the service life of LED bulb lamp.

Patent Office of the People's Republic of China has announced a CN201448621U document on May 5th, 2010, name is called the LED bulb lamp, this bulb lamp comprises lamp holder, the connector that connects lamp holder and radiator, and be positioned at cover on the radiator, LED clocklike is placed on aluminium base one plane, the one side thread connection of another plane of aluminium base and radiator, the surface design of radiator spiral radiating ribs position.The shortcoming of this LED bulb lamp is that the radiating effect of radiator is good inadequately, does not maximally utilise the heat-dissipating space of radiator.

Summary of the invention

The utility model does not maximally utilise the shortcoming of the heat-dissipating space of radiator for the radiating effect that solves the radiator that exists in the prior art is good inadequately, and a kind of LED bulb lamp that can improve radiating effect is provided.

The technical scheme that its technical problem that solves the utility model adopts is: the utility model comprises lamp socket, lamp holder, driver circuit plate, LED illuminator, lampshade, radiator, lamp socket links to each other with lamp holder, the driver circuit plate is installed in the lamp socket, radiator is installed in outside the lamp socket, the LED illuminator is installed in the radiator and with the driver circuit plate and is electrically connected, lampshade is connected with radiator, that radiator comprises is that fin surrounds at interval, have the cylinder of certain taper and connect ring-type underframe, the radiating surface of fin and the cylindrical radial parallel of described fin.The radiating surface of fin and cylindrical radial parallel are arranged the area that can increase radiating surface, and the fin of vertically arranging has formed vent passages simultaneously, helps distributing of heat, thereby has improved radiating effect.

As preferably, fin and underframe are made by aluminium alloy.Aluminium is good heat conductor, and aluminium alloy has improved mechanical performance in the good heat conductor that keeps aluminium.

As preferably, fin and underframe are integral by aluminium alloy compression casting.Can improve manufacturing efficient, reduce cost.

As preferably, the outer surface of fin is circular-arc.Circular-arc outer surface can increase area of dissipation, improves radiating effect.

The beneficial effects of the utility model are: the radiating surface of fin is vertically arranged, and the cross section is circular arc, increased area of dissipation, and set up vent passages, improved radiating effect, improved the service life of LED lamp.

Description of drawings

Fig. 1 is a kind of assembling schematic diagram of the utility model LED bulb lamp;

Fig. 2 is a kind of profile schematic diagram after the assembling of the utility model LED bulb lamp is finished;

Fig. 3 is the partial enlarged drawing of I among Fig. 1.

Among the figure: 1. lampshade, 2.LED illuminator, 3. radiator, 4. driver circuit plate, 5. lamp socket, 6. lamp holder, 7. underframe, 8. fin.

The specific embodiment

Below by specific embodiment, and in conjunction with the accompanying drawings the technical solution of the utility model is described in further detail.

Embodiment:

A kind of LED bulb lamp of present embodiment, referring to Fig. 1, comprise lampshade 1, LED illuminator 2, radiator 3, driver circuit plate 4, lamp socket 5, lamp holder 6, lamp socket 5 links to each other with lamp holder 6, driver circuit plate 4 is installed in the lamp socket 5, radiator 3 covers on outside the lamp socket 5 fixedlys connected with lamp socket 5, and LED illuminator 2 is installed in the radiator 3 and with driver circuit plate 4 and is electrically connected, and lampshade 1 covers whole LED illuminator 2 and fixedlys connected with radiator 3.

Referring to Fig. 2, after finishing, each item assembling forms the LED bulb lamp.

Radiator 3 comprises fin 8 and ring-type underframe 7, is cast into one by aluminum alloy materials, is shaped as the cylinder with certain taper, referring to Fig. 3, fin 8 is flat, and outer surface is arcuation, what the cross section was bigger is main radiating surface, main radiating surface and cylindrical radial parallel.

Above embodiment is one of preferred plan of the present utility model, is not that the utility model is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim puts down in writing.

Claims

1. LED bulb lamp, comprise lamp socket, lamp holder, the driver circuit plate, the LED illuminator, lampshade, radiator, described lamp socket links to each other with described lamp holder, described driver circuit plate is installed in the described lamp socket, described radiator is installed in outside the described lamp socket, described LED illuminator is installed in the radiator and with described driver circuit plate and is electrically connected, described lampshade is connected with described radiator, it is characterized in that: described radiator comprises what fin surrounded at interval, have the cylinder of certain taper and connect ring-type underframe, the radiating surface of described fin and the described cylindrical radial parallel of described fin.

2. a kind of LED bulb lamp according to claim 1 is characterized in that: described fin and described underframe are made by aluminium alloy.

3. a kind of LED bulb lamp according to claim 2, it is characterized in that: described fin and underframe are integral by aluminium alloy compression casting.

4. according to claim 1 or 2 or 3 described a kind of LED bulb lamps, it is characterized in that: the outer surface of described fin is circular-arc.