CN202302902U

CN202302902U - LED (light-emitting diode) bulb lamp

Info

Publication number: CN202302902U
Application number: CN2011204161979U
Authority: CN
Inventors: 张匿蕾
Original assignee: TONGHUI ELECTRONICS Corp CO Ltd
Current assignee: TONGHUI ELECTRONICS Corp CO Ltd
Priority date: 2011-10-27
Filing date: 2011-10-27
Publication date: 2012-07-04
Anticipated expiration: 2021-10-27

Abstract

The utility model discloses an LED (light-emitting diode) bulb lamp. The LED bulb lamp comprises a lamp head, a radiating body which is in threaded connection with the lamp head, an LED substrate which is positioned above the radiating body, and a light-permeable shade which covers the LED substrate, wherein the light-permeable shade has a semispherical structure; the lamp head, the radiating body and the light-permeable shade form a closed cavity; the main body of the radiating body has a conical frustum-shaped structure; the small end port of the radiating body is provided with external threads which are connected with the lamp head; an internal cavity of the radiating body is a cylindrical cavity; triangular and fin-shaped radiating sheets are uniformly distributed on the circumferential ring of the outer side surface of the radiating body; the radiating sheets are splayed outwards in the radial direction of the cavity; and the radiating body has an integral structure which is sintered from ceramic. The radiating body in the LED bulb lamp is small in structural size and high in radiating efficiency, saves raw materials, and can prolong the service life of the LED bulb lamp to a certain extent; and the radiating body uses 95% aluminum oxide ceramic to replace the conventional metal material, so that the safety hazard due to electricity leakage in a bulb can be avoided.

Description

The LED bulb lamp

Technical field

The utility model relates to a kind of lighting apparatus, especially a kind of LED bulb lamp.

Background technology

Under the situation that global energy shortage, environmental requirement improve constantly, the semiconductor illuminating light source that development has energy-saving and environmental protection, long-life, an advantage such as radiationless is to energy-saving and environmental protection and build a conservation-minded society and have its own strategic significance.At present, because the LED light fixture has light efficiency height, life-span length, no mercury pollution, energy-conservation about 50% with first-class characteristics, be widely used in lighting fields such as hotel, hotel, household.

Tradition LED lamp is commonly used has the LED bulb lamp, and it mainly comprises lamp holder, radiator, LED substrate and diffuser, because the light source assembly of LED is in the sealing lamp body, when the led light source assembly is worked; Produce a large amount of heats, dispel the heat with heat conducting mode through radiator, wherein the traditional heat-dissipating body adopts heat dissipation metal, like aluminium radiator; Mostly its shape is smooth or has outwardly directed fin, accomplishes heat sinking function, because the radiating surface of this radiator is little; And radiating effect is restricted, influence the life-span of LED bulb lamp, in addition owing to be the radiator of metal material; Itself has electric conductivity, when the power supply module of LED contacts, produces potential safety hazard.

The utility model content

The technical problem that the utility model will solve provides a kind of good heat dissipation effect, and can remove the New LED bulb lamp of electric leakage potential safety hazard.

For solving the problems of the technologies described above; The technical scheme that the utility model is taked is: a kind of LED bulb lamp, and comprise lamp holder, the radiator that is connected with cap screw thread, be positioned at the LED substrate of radiator top and the diffuser that is covered in LED substrate top, said diffuser is hemispheric housing; Said lamp holder, radiator and diffuser three form the cavity of a sealing; It is characterized in that said radiator main body is the truncated cone structure, its osculum end has the external screw thread that is connected with lamp holder, and internal cavities is a cylindrical cavity; The lateral surface border is evenly equipped with triangle, fin-like fin, and said fin radially outward launches along cavity.Radiator structure volume in the utility model is little, conservation, and also radiating efficiency is high, to certain help is arranged the service life that prolongs the utility model.

Preferably, the integrative-structure of said radiator for forming by ceramic post sintering.The material that radiator is selected for use is 95% aluminium oxide ceramics, replaces original metal material, can avoid the potential safety hazard that produces because of electric leakage in the ball bubble.

Adopt the beneficial effect that technique scheme produced to be: the utility model is through improving the structure of radiator; Making its fin is triangle, fin-like structure, and dispersed placement, compares with original radiator structure; Radiating effect improves a lot; Prolong the service life of the utility model, and volume reduces conservation; Select for use ceramic material to replace metal material on this basis, it has, and chemical erosion abilities such as tool intensity is high, wear-resisting, acid and alkali-resistance are strong, and electrical insulation capability is good under normal temperature and the high temperature, under the high temperature mechanical strength lose little, the advantage that heat conduction is good.

Description of drawings

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further detailed explanation.

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

Fig. 2 is the decomposing schematic representation of Fig. 1;

Fig. 3 is a radiator semi-section view vertically;

Wherein: 1, lamp holder, 2, radiator, 3, the LED substrate, 4, diffuser.

The specific embodiment

Can know according to accompanying drawing 1 and accompanying drawing 2; The utility model is specifically related to a kind of LED bulb lamp, comprises lamp holder 1, the radiator 2 that is threaded with lamp holder 1, the diffuser 4 that is positioned at the LED substrate 3 of radiator 2 tops and is covered in LED substrate 3 tops, and diffuser 4 is hemispheric housing; Lamp holder 1, radiator 2 and diffuser 4 threes form the cavity of a sealing; Radiator 2 main bodys are the truncated cone structure, and its osculum end has the external screw thread that is connected with lamp holder 1, and internal cavities is a cylindrical cavity; The lateral surface border is evenly equipped with triangle, fin-like fin, and fin radially outward launches along cavity.

Can know by accompanying drawing 3, the integrative-structure of radiator 2 for forming by ceramic post sintering, its structure fin shapes distributes; Material uses good 95% aluminium oxide ceramics of heat conduction; It is compared with the traditional metal radiator, and it is strong to have chemical erosion abilities such as tool intensity is high, wear-resisting, acid and alkali-resistance, and electrical insulation capability is good under normal temperature and the high temperature; Mechanical strength loss is little under the high temperature, the characteristics that heat conduction is good.

The maximum improvement of the utility model is: radiator 2 uses 95% aluminium oxide ceramics non-conductive and that heat conduction is good to steep radiator as the LED ball, reaches the purpose of LED ball bubble heat radiation.

The design's advantage: this radiator do not fire, stainless, and firm not fragile, electrical insulation capability is good, and the incomparable advantageous property of other organic material and metal material is arranged, safer in the use of ballast LED ball bubble.

Claims

1. LED bulb lamp; Comprise lamp holder (1), the radiator (2) that is threaded with lamp holder (1), be positioned at the LED substrate (3) of radiator (2) top and the diffuser (4) that is covered in LED substrate (3) top; Said diffuser (4) is hemispheric housing, and said lamp holder (1), radiator (2) and diffuser (4) three form the cavity of a sealing, it is characterized in that said radiator (2) main body is the truncated cone structure; Its osculum end has the external screw thread that is connected with lamp holder (1); Internal cavities is a cylindrical cavity, and the lateral surface border is evenly equipped with triangle, fin-like fin, and said fin radially outward launches along cavity.

2. LED bulb lamp according to claim 1 is characterized in that the integrative-structure of said radiator (2) for being formed by ceramic post sintering.