CN202493934U

CN202493934U - LED bulb

Info

Publication number: CN202493934U
Application number: CN2012200626030U
Authority: CN
Inventors: 王金华
Original assignee: HANGZHOU BAOSHAN ELECTRONIC Co Ltd
Current assignee: HANGZHOU BAOSHAN ELECTRONIC Co Ltd
Priority date: 2012-02-24
Filing date: 2012-02-24
Publication date: 2012-10-17
Anticipated expiration: 2022-02-24

Abstract

The utility model belongs to the field of semiconductor lighting, in particular to an LED bulb. The LED bulb comprises a lamp holder and a lamp body, wherein the lamp body comprises an upper cover, a heat radiating fin group and a lower cover which are sequentially and fixedly connected from top to bottom; the bottom end of the lower cover is connected with the lamp holder; the outer surface of the upper cover is provided with a plurality of inwards depressed mounting grooves used for mounting bulbs; and a lamp shade is respectively arranged above each mounting groove. According to the LED bulb, the heat radiating fin group is used as a part of the lamp body, so that the heat radiating effect is more obvious; and meanwhile, the outer surface of the upper cover is provided with the plurality of mounting grooves, and the heat radiating area is greatly increased during increasing the brightness, so that the effects of conducting heat and cooling are more obvious.

Description

A kind of LED bulb

Technical field

The utility model belongs to field of semiconductor illumination, relates in particular to a kind of LED bulb.

Background technology

LED replaces various conventional light source gradually as a kind of energy-efficient light source.But, operating temperature is had relatively high expectations, when temperature raises because LED itself is a semiconductor devices; Led light source internal resistance meeting reduces; Cause the LED operating current to raise, when surpassing rated operational current, then can influence the service life of LED product; Serious burns out led light source, so rapid derivation of heat that how LED is produced in luminous is to guarantee that it can reach the key factor in normal service life.Therefore some LED bulbs that occur on the market can be installed radiating fin on the shell of bulb; Like notification number is that the patent of CN201748141U discloses a kind of LED light fixture with radiating fin; Comprise the lamp holder, shell, lampshade, a plurality of light emitting diode and the circuit board that are connected with power supply; This light fixture also comprises a radiating fin in addition, and radiating fin is the hollow cylinder body structure, is enclosed within on the shell.On the LED lamp outer casing, radiating fin is installed; Can absorb the heat that Light-Emitting Diode sends, play heat conduction and cooling-down effect, but this structure is enclosed within on the shell owing to radiating fin; Caloric requirement is conducted to radiating fin through shell again, and heat conduction and cooling-down effect still are not fine.

The utility model content

The utility model technical problem to be solved is for providing a kind of heat conduction and cooling-down effect LED bulb preferably.

The purpose of the utility model mainly is achieved through following proposal: a kind of LED bulb; Comprise lamp holder and lamp body; Described lamp body comprises loam cake, radiating fin group and the lower cover that from top to bottom is fixedly connected sequentially; Said lower cover bottom is connected with lamp holder, and the said exterior surface of going up is provided with the mounting groove that is used to install bulb that several cave inward, and lampshade is installed in each mounting groove top.

Adopt this programme, loam cake, radiating fin group and lower cover from top to bottom are fixedly connected sequentially, and the radiating fin group is as the part of lamp body like this, and the heat that bulb is produced after energising directly distributes through radiating fin, and radiating effect is more remarkable.Simultaneously be provided with several mounting grooves at last exterior surface, the LED bulb is installed in each mounting groove, this structure is transformed to several low-power bulbs with a high-power bulb; When guaranteeing brightness of illumination; A plurality of bulbs are distributed in some mounting grooves, make original place's pyrotoxin become the many places pyrotoxin, increased area of dissipation greatly; Combine the radiating fin group again, heat conduction and cooling-down effect improve greatly.

As preferably, described radiating fin group bottom is provided with ballast, and the bulb in the said mounting groove is electrically connected with power supply through ballast.In radiating fin group bottom ballast is set, ballast just is embedded in the lower cover, installs more conveniently, and while LED bulb adds ballast, in energy-conservation, makes circuit more stable, and bulb service life is longer.

As preferably, said LED bulb is installed on the aluminium base, and said aluminium base is fixedly mounted in the mounting groove.The LED bulb is installed on the aluminium base, and on the one hand aluminium base can comparatively fast distribute the heat that the LED bulb produces, on the other hand the LED bulb through aluminium base can be firm be installed in the mounting groove.

As preferably, described aluminium base outward flange is provided with bayonet socket, and it is protruding that said lampshade is provided with card, and said lampshade is through connecting and fixing in the mounting groove top.The snap fit that lampshade is gone in the outer peripheral bayonet socket of aluminium base with the card convex clip is fixed in the mounting groove top, and is simple in structure, convenient disassembly.

As preferably, described mounting groove is a hemispherical groove.Mounting groove is a hemispherical, is easy to the better scattering of light, makes bulb and aluminium base be convenient to install simultaneously.

As preferably, all have the through hole that runs through up and down on described lower cover and the radiating fin group, said lower cover, radiating fin group are fixedly connected with loam cake through penetrating the half-thread screw in the through hole.Open the through hole that runs through up and down at lower cover and radiating fin group, can lower cover, radiating fin group be fixedly connected with loam cake through the half-thread screw, make lamp body three parts be installed on the dismounting more convenient.

As preferably, the number of mounting groove is 6.

In a word, the beneficial effect of the utility model is: with the part of radiating fin group as lamp body, radiating effect is more remarkable.Simultaneously be provided with several mounting grooves at last exterior surface, when increasing brightness, area of dissipation increases greatly, makes heat conduction and cooling-down effect more remarkable.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the STRUCTURE DECOMPOSITION figure of the utility model;

Fig. 3 is the mounting structure sketch map of lampshade.

Illustrate: the 1-lamp holder, the 2-lamp body, the 3-loam cake, 4-radiating fin group, the 5-lower cover, 6-half-thread screw, the 7-ballast, the 8-mounting groove, the 9-aluminium base, the 10-LED bulb, the 11-lampshade, the 12-card is protruding, the 13-bayonet socket.

The specific embodiment

A kind of LED bulb, as depicted in figs. 1 and 2, comprise lamp holder 1 and lamp body 2, lamp body 2 comprises loam cake 3, radiating fin group 4 and lower cover 5, lower cover 5 bottoms are connected with lamp holder 1.All have the through hole that runs through up and down on lower cover 5 and the radiating fin group 4, half-thread screw 6 penetrates lower cover 5 and is connected with loam cake 3 with the through hole of radiating fin group 4, makes loam cake 3, radiating fin group 4 and lower cover 5 from top to bottom fixing successively.Radiating fin group 4 bottoms are provided with ballast 7.The outer surface of said loam cake 3 is provided with 6 hemispherical mounting grooves 8 that are used to install the LED bulb that cave inward, and is installed with aluminium base 9 in the mounting groove 8, and LED bulb 10 is installed on the aluminium base 9, and lampshade 11 is installed in each mounting groove 8 top.

As shown in Figure 3, lampshade 11 is provided with that card is protruding 12, and aluminium base 9 outward flanges are provided with bayonet socket 13, and lampshade 11 snaps in the aluminium base 9 outer peripheral bayonet sockets 13 through the card on the lampshade 11 protruding 12 and is fixed in mounting groove 8 tops.

Loam cake 3, radiating fin group 4 and lower cover 5 from top to bottom are fixedly connected sequentially, and radiating fin group 4 is as the part of lamp body 2 like this, and the heat that bulb is produced after energising directly distributes through radiating fin, and radiating effect is more remarkable.Loam cake 3 outer surfaces are provided with 6 hemispherical mounting grooves 8 simultaneously, in each mounting groove 8 LED bulb 10 are installed, and this structure is transformed to a plurality of low-power bulbs with a high-power bulb; When guaranteeing brightness of illumination; A plurality of bulbs are distributed in some mounting grooves 8, make original place's pyrotoxin become the many places pyrotoxin, increased area of dissipation greatly; Combine radiating fin group 4 again, heat conduction and cooling-down effect improve greatly.

Claims

1. LED bulb; Comprise lamp holder and lamp body; It is characterized in that described lamp body comprises loam cake, radiating fin group and the lower cover that from top to bottom is fixedly connected sequentially, said lower cover bottom is connected with lamp holder; The said exterior surface of going up is provided with the mounting groove that is used to install bulb that several cave inward, and lampshade is installed in each mounting groove top.

2. a kind of LED bulb according to claim 1 is characterized in that, described radiating fin group bottom is provided with ballast, and the bulb in the said mounting groove is electrically connected with power supply through ballast.

3. a kind of LED bulb according to claim 1 is characterized in that said LED bulb is installed on the aluminium base, and said aluminium base is fixedly mounted in the mounting groove.

4. a kind of LED bulb according to claim 3 is characterized in that described aluminium base outward flange is provided with bayonet socket, and it is protruding that said lampshade is provided with card, and said lampshade is through connecting and fixing in the mounting groove top.

5. according to claim 1 or 2 or 3 or 4 described a kind of LED bulbs, it is characterized in that described mounting groove is a hemispherical groove.

6. according to claim 1 or 2 or 3 or 4 described a kind of LED bulbs, it is characterized in that all have the through hole that runs through up and down on described lower cover and the radiating fin group, said lower cover, radiating fin group are fixedly connected with loam cake through penetrating the half-thread screw in the through hole.

7. according to claim 1 or 2 or 3 or 4 described a kind of LED bulbs, it is characterized in that described mounting groove is 6.