CN202769387U

CN202769387U - led light bulb

Info

Publication number: CN202769387U
Application number: CN2012204721960U
Authority: CN
Inventors: 唐运忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-09-17
Filing date: 2012-09-17
Publication date: 2013-03-06
Anticipated expiration: 2022-09-17

Abstract

The utility model discloses a LED bulb, including the lamp holder that connects gradually, lamp holder seat, the lamp body, the lamp shade and the LED light source that sets up on the lamp body, be connected with a heat conduction core on the light source installation position of lamp body upper end, evenly be equipped with the mounting groove on the lateral wall of heat conduction core, the LED light source inserts in the mounting groove, and it is fixed with the lateral wall laminating of mounting groove, can increase the area of contact of LED light source and heat conduction core, thereby increase heat conduction speed, heat conduction core can conduct the heat that the LED light source produced to the lamp body fast, distribute the heat to the air fast by the lamp body, the radiating effect is good, can prevent that the LED light source from overheating, the life of extension LED light source; the heat conducting core is in a bullet shape, and the cambered surface at the top end of the heat conducting core can reflect light, so that the light effect is improved, the light diffusion is reduced, and the effects of high brightness and uniform and soft light are achieved.

Description

The LED bulb

Technical field

The utility model relates to the LED lighting field, particularly a kind of LED bulb of good heat dissipation effect.

Background technology

At present, led light source is long, pollution-free with the life-span, light efficiency high just progressively replace incandescent and fluorescent light, so the LED bulb as light source with LED occurred.The LED bulb generally comprises lamp holder, lamp body, lampshade and the led light source that is fixed in the lamp body, if the heat of the luminous generation of led light source can not in time leave, meeting is so that the lamp body internal temperature is more and more higher, it is aging not only can to accelerate LED, shorten its service life, can cause LED to burn when serious, so existing LED bulb all adopts the high lamp body of thermal conductivity factor to dispel the heat, but existing led light source generally comprises substrate and LED lamp pearl, and the contact area of substrate and lamp body is considerably less, caused the heat conduction between substrate and the lamp body slow, thereby radiating effect is not good, has a strong impact on service life and the service property (quality) of LED.And existing LED bulb only improves light efficiency at light source upper cover one lampshade, minimizing is astigmatic, and its effect is not better.

Therefore, how to increase the contact area of substrate and lamp body, improve the radiating rate of LED bulb, realize that light efficiency is high, astigmatism is the technical problem that needs to be resolved hurrily in the industry less.

Summary of the invention

Main purpose of the present utility model provides a kind of LED bulb, is intended to improve the radiating rate of LED bulb, prevents that LED lamp pearl is overheated, prolongs the service life of LED lamp pearl; Improve reflector efficiency, reach light efficiency height, astigmatic few effect.

The utility model proposes a kind of LED bulb, comprise successively lamp holder, bulb socket, lamp body, the lampshade that connects and be arranged on led light source on the described lamp body, comprise that also a top is the heat conduction core of cambered surface, side wall surface in described heat conduction core is provided with some inwardly recessed mounting grooves, described led light source inserts in the described mounting groove, and fits fixing with the sidewall of described mounting groove; Described lamp body is that Heat Conduction Material is made, and is provided with the light source installation position in described lamp body upper end, and described heat conduction core is fastened on the described light source installation position.

Preferably, the hole that described light source installation position raises up and forms for the upper surface from described lamp body, outside wall surface with described heat conduction core on the internal face of described light source installation position is provided with corresponding screw thread, is threaded connection fixing between described heat conduction core and the described lamp body.

Preferably, described lamp body is that aluminum or aluminum alloy is made, and evenly is provided with some radiating fins on the outside wall surface of described lamp body.

Preferably, described lamp body is the housing of hollow, and the led driver that is connected with described led light source is arranged on the hollow bulb of described lamp body.

Preferably, described heat conduction core is warhead shape.

Preferably, described led light source comprises light source spare corresponding to some and described mounting groove, described light source spare comprises the first bar shaped substrate adaptive with the width of described mounting groove, the second bar shaped substrate and at least two bonded LED lamp pearls, described the first bar shaped substrate and described the second bar shaped substrate are fixed in the described mounting groove back to applying, described bonded LED lamp pearl be separately positioned on described the first bar shaped substrate and described the second bar shaped substrate on face.

Preferably, a side wall surface in relatively described heat conduction core axle center is set to intilted inclined plane in the described mounting groove, and described light source spare is fitted with the inclined plane by screw and is fixedly connected with.

The beneficial effect of LED bulb of the present utility model is:

1, lamp body is that Heat Conduction Material is made, light source installation position in the lamp body upper end is connected with a heat conduction core, on the sidewall of heat conduction core, evenly be provided with some mounting grooves, led light source is inserted in the mounting groove, and fit fixing with the sidewall of mounting groove, like this, can increase the contact area of led light source and heat conduction core, thereby increase heat-transfer rate, heat conduction core can be conducted the heat that led light source produces to lamp body rapidly, by lamp body with the heat Quick diffusing in air, good heat dissipation effect can prevent that led light source is overheated, prolong the service life of led light source, thereby solved the heat dissipation problem of lamp, and simple in structure, be beneficial to batch production.

2, heat conduction core is warhead shape, but the cambered surface reflection ray on its top is conducive to improve light efficiency, minimizing astigmatism, thereby reaches evenly soft effect of high brightness, light.

Description of drawings

Fig. 1 is the structural representation of an embodiment of the utility model LED bulb;

Fig. 2 is the structural representation that heat conduction core is combined with led light source among the embodiment of the utility model LED bulb;

Fig. 3 is the stereogram of heat conduction core among the embodiment of the utility model LED bulb;

Fig. 4 is the top view of heat conduction core among the embodiment of the utility model LED bulb;

Fig. 5 is the upward view of heat conduction core among the embodiment of the utility model LED bulb;

The realization of the utility model purpose, functional characteristics and advantage are described further with reference to accompanying drawing in connection with embodiment.

The specific embodiment

Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.

Referring to figs. 1 through Fig. 5, one embodiment of LED bulb of the present utility model is proposed, comprise successively lamp holder 10, bulb socket 100, lamp body 20, the lampshade 50 that connects and be arranged on led light source 30 on the lamp body 20, bulb socket 100 is made for plastics, lampshade 50 is candle, be threaded connection fixing between lamp holder 10 and the bulb socket 100, the end that bulb socket 100 fixes at lamp body 20, lampshade 50 is threaded connection fixing with the other end of lamp body 20, for convenience detach, be convenient to its lamp body 20 internal components are keeped in repair.

Lamp body 20 is round table-like, is provided with the heat conduction core 40 that light source installation position 200, is equipped with led light source 30 in lamp body 20 upper surfaces and is fastened on this light source installation position 200.This round table-like hole for raising up from lamp body 20 upper surfaces and forming, light source installation position 200, the outside wall surface with heat conduction core 40 on the internal face in this round table-like hole is provided with corresponding screw thread, is threaded connection fixing between heat conduction core 40 and the lamp body 20.Lamp body 20 is the housing of hollow, and the led driver that is connected with led light source 30 is arranged on the hollow bulb of

lamp body

20,30 work of led driver driving LED light source.

Heat conduction core 40 is warhead shape, and its top end face is cambered surface, can reflection ray; Side wall surface in heat conduction core 40 is provided with some inwardly recessed mounting grooves 400.Led light source 30 comprises the light source spare that some and mounting groove 400 are corresponding, light source spare comprises the first bar shaped substrate 301 adaptive with the width of mounting groove 400, the second bar shaped substrate 302 and two bonded LED lamp pearls 300, the first bar shaped substrate 301 and the second bar shaped substrate 302 are back to applying, and be fixed by screws in the mounting groove 400, bonded LED lamp pearl 300 be separately positioned on the first bar shaped substrate 301 and the second bar shaped substrate 302 on face, the lamp pearl of the light flux ratio integrated chip of bonded LED lamp pearl 300 exceeds more than 40%, and easier distribute heat.After the first bar shaped substrate 301 and the second bar shaped substrate 302 insert and fix in the mounting groove 400, the bottom of each first bar shaped substrate 301 and the second bar shaped substrate 302 is provided with the positive and negative electrode contact, this positive and negative electrode contact directly with led driver on the positive and negative electrode lead-in wire be electrically connected, need not to install again wiring board, cost-saved.

One side wall surface in mounting groove 400 interior relative heat conduction core 40 axle center is set to intilted inclined plane, light source spare vertically inserts in the mounting groove 400, and fit by the inclined plane of screw and mounting groove 400 and to be fixedly connected with, thereby the light source spare outward-dipping setting in upper end, bonded LED lamp pearl 300 on the first bar shaped substrate 301 outside being fixed on is slightly downward, when LED lamp pearl 300 was luminous, irradiation was illuminated the lamp body 20 that is arranged on led light source 30 belows downwards; The place height of bonded LED lamp pearl 300 is higher than the top end face of heat conduction core 40, the bonded LED lamp pearl 300 that is fixed on the second inboard bar shaped substrate 302 is luminous in the over top of heat conduction core 40, the light that sends can be reflected by the cambered surface on heat conduction core 40 tops, be conducive to improve light efficiency, reduce astigmatism, thereby reach evenly soft effect of high brightness, light.

Lamp body 20 and heat conduction core 40 are the aluminum or aluminum alloy material of high heat conduction and make, has fast advantage of heat conduction, and light source spare is inserted in the mounting groove 400 of heat conduction core 40, and fit with the inclined plane in the mounting groove 400, like this, can increase the contact area of led light source 30 and heat conduction core 40, thereby increase heat-transfer rate, heat conduction core 40 can be conducted the heat that led light source 30 produces to lamp body 20 rapidly, by lamp body 20 with the heat Quick diffusing in air.Evenly be provided with some radiating fins on the outside wall surface of lamp body 20, good heat dissipation effect can prevent that led light source 30 is overheated, prolongs the service life of led light source 30, thereby has solved the heat dissipation problem of lamp, and simple in structure, is beneficial to batch production.

The above only is preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims

1. LED bulb, comprise successively lamp holder, bulb socket, lamp body, the lampshade that connects and be arranged on led light source on the described lamp body, it is characterized in that, comprise that also a top is the heat conduction core of cambered surface, side wall surface in described heat conduction core is provided with some inwardly recessed mounting grooves, described led light source inserts in the described mounting groove, and fits fixing with the sidewall of described mounting groove; Described lamp body is that Heat Conduction Material is made, and is provided with the light source installation position in described lamp body upper end, and described heat conduction core is fastened on the described light source installation position.

2. LED bulb according to claim 1, it is characterized in that, the hole that described light source installation position raises up and forms for the upper surface from described lamp body, outside wall surface with described heat conduction core on the internal face of described light source installation position is provided with corresponding screw thread, is threaded connection fixing between described heat conduction core and the described lamp body.

3. LED bulb according to claim 2 is characterized in that, described lamp body is that aluminum or aluminum alloy is made, and evenly is provided with some radiating fins on the outside wall surface of described lamp body.

4. LED bulb according to claim 3 is characterized in that, described lamp body is the housing of hollow, and the led driver that is connected with described led light source is arranged on the hollow bulb of described lamp body.

5. each described LED bulb in 4 according to claim 1 is characterized in that described heat conduction core is warhead shape.

6. LED bulb according to claim 1, it is characterized in that, described led light source comprises light source spare corresponding to some and described mounting groove, described light source spare comprises the first bar shaped substrate adaptive with the width of described mounting groove, the second bar shaped substrate and at least two bonded LED lamp pearls, described the first bar shaped substrate and described the second bar shaped substrate are fixed in the described mounting groove back to applying, described bonded LED lamp pearl be separately positioned on described the first bar shaped substrate and described the second bar shaped substrate on face.

7. LED bulb according to claim 6 is characterized in that, a side wall surface in relatively described heat conduction core axle center is set to intilted inclined plane in the described mounting groove, and described light source spare is fitted with the inclined plane by screw and is fixedly connected with.