CN202747065U

CN202747065U - LED (Light-Emitting Diode) lamp bulb capable of rapidly radiating heat

Info

Publication number: CN202747065U
Application number: CN2012204488627U
Authority: CN
Inventors: 唐向东
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-09-05
Filing date: 2012-09-05
Publication date: 2013-02-20
Anticipated expiration: 2022-09-05

Abstract

The utility model discloses an LED (Light-Emitting Diode) lamp bulb capable of rapidly radiating heat, comprising a lamp head, a lamp cover, an LED light-emitting element and a driving circuit board, wherein a heat radiation body is further arranged in a space formed by the lamp head and the lamp cover; the lower end of the heat radiation body is connected with the lamp head; the upper end face of the heat radiation body is a plane and a cavity is formed inside the heat radiation body; the LED light-emitting element is mounted on the upper end face of the heat radiation body; and the driving circuit board is mounted in the cavity inside the heat radiation body and is electrically connected with the LED light-emitting element. The lamp bulb is internally provided with the heat radiation body and the heat generated by the LED light-emitting element is directly conducted to the outer part of the lamp bulb through the lamp head, so that the heat radiation effect and the heat radiation speed are effectively improved. The structure does not need to form a huge convection and heat radiation space so that the size of the lamp bulb does not need to be too large, and therefore, the lamp bulb can be manufactured into the shape which is the same as the shape of a common incandescent lamp bulb and the incandescent lamp bulb can be mutually exchanged to be mounted.

Description

The LED bulb of energy quick heat radiating

Technical field

The utility model relates to a kind of bulb, particularly relates to a kind of LED bulb.

Background technology

The advantages such as the LED light-emitting component has that power consumption is low, long service life, volume is little and reaction speed is fast meet the theory of modern energy-conserving and environment-protective, therefore replace gradually incandescent lamp bulb and fluorescent tube, become the normal lighting light source.But the service life of led chip and luminous efficiency can sharply descend with the rising of temperature.Particularly when a plurality of led chip dense arrangement formed illuminator, it is particularly outstanding that heat dissipation problem just seems.

Existing LED light fixture has a bulky and heavy lamp socket usually, dispel the heat with convection current or radiation mode, be unsuitable for being installed in the lamp socket of ordinary incandescent lamp, and radiating effect is not good, cause lamp temperatures too high, not only affect service life and the luminous efficiency of light fixture, more likely scald the user.

The utility model content

The technical problems to be solved in the utility model is to provide the LED bulb that a kind of volume is little, can exchange with incandescent lamp bulb installation and energy quick heat radiating.

In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of LED bulb of energy quick heat radiating, comprise lamp holder, lampshade, LED light-emitting component and drive circuit board, in the space that lamp holder and lampshade surround, also comprise a radiator, the lower end of radiator is connected with lamp holder, the upper surface of radiator is the plane, the inside of radiator has cavity, described LED light-emitting component is installed on the upper surface of radiator, and described drive circuit board is installed in the cavity of radiator inside and with the LED light-emitting component and is electrically connected.

Preferably, described radiator is made by metal material.

Further, described radiator is made by aluminum or aluminum alloy.

Further, the lower end of described radiator is provided with external screw thread, and matches with internal thread in the lamp holder.

Preferably, the outer rim of described radiator is provided with radiating fin.

Preferably, described lampshade is made of interconnective upper encloser and lower encioser, and described upper encloser is made by transparent material, and described lower encioser is made by insulating materials.

Further, described lower encioser is provided with louvre.

The beneficial effects of the utility model are, owing to be provided with radiator in bulb, the heat that the LED light-emitting component produces directly can be transmitted to the bulb outside by lamp holder, have effectively promoted radiating effect and radiating rate.This structure need not to form huge convection current and heat loss through radiation space, makes the volume of bulb needn't be too large, thereby can make the profile identical with the ordinary incandescent lamp bubble, and can exchange with incandescent lamp bulb and install.

Description of drawings

Fig. 1 is the sectional structure chart of the LED bulb of a kind of energy of the utility model quick heat radiating.

Fig. 2 is the schematic perspective view of radiator in the utility model.

Fig. 3 is the schematic perspective view of the LED bulb of a kind of energy of the utility model quick heat radiating.

Among the figure:

1, lamp holder

2, lampshade

21, upper encloser

22, lower encioser

23, louvre

3, LED light-emitting component

4, radiator

41, cavity

42, fairlead

43, radiating fin

44, external screw thread

5, drive circuit board

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail, those skilled in the art can more clearly understand other advantages of the present utility model and effect thus.

Need to prove that the structure that Figure of description illustrates, ratio, size etc. only in order to cooperate the specific embodiment, more clearly understand design of the present utility model for those skilled in the art, are not to limit protection domain of the present utility model.The adjustment of the modification of any structure, the change of proportionate relationship or size not affecting in the situation that effect of the present utility model and purpose reach, all should still drop within the protection domain of the present utility model.Simultaneously, adopt in this specification as " on ", D score, etc. term, be the relative term that adopts for the ease of being described by reference to the accompanying drawings, do not have absolute connotation.

Such as Fig. 1, shown in Figure 3, the utility model LED bulb comprises lamp holder 1, lampshade 2, LED light-emitting component 3 and drive circuit board 5, and profile of the present utility model is identical with the ordinary incandescent lamp bubble, can in the situation of not changing former light fixture, directly replace original incandescent lamp bulb.In the space that lamp holder 1 and lampshade 2 surround, also comprise a radiator 4, the lower end of radiator 4 is connected with lamp holder 1, the upper surface of radiator 4 is the plane, the inside of radiator 1 has cavity 41, LED light-emitting component 3 is installed on the upper surface of radiator 4, and drive circuit board 5 then is installed in the cavity 41 of radiator 4 inside and with LED light-emitting component 3 and is electrically connected.The heat that LED light-emitting component 3 and drive circuit board 5 produce can outwards be conducted by radiator 4.

As shown in Figure 2, be provided with fairlead 42 at the top of radiator 4, to link up upper surface and the cavity 41 of radiator 4, fairlead 42 passes for the connection wire between LED light-emitting component 3 and the drive circuit board 5.

Be increasing heat radiation area, be provided preferably with radiating fin 43 in the outer rim of radiator 4.Further, be provided with external screw thread 44 in the lower end of radiator, the internal thread in this external screw thread 44 and the lamp holder 1 forms threaded engagement.Radiator 4 is preferably made by the good metal material of heat conductivility, is particularly preferably made by aluminum or aluminum alloy.Because lamp holder 1 also is made of metal, therefore, radiator 4 can be transmitted to the bulb outside to heat by lamp holder 1.

For the ease of manufacturing and the assembling of bulb, in preferred embodiment of the present utility model, lampshade 2 is made of interconnective upper encloser 21 and lower encioser 22, and upper encloser 21 is made such as glass by transparent material; Lower encioser 22 is made such as plastics or pottery by insulating materials.

Outwards distribute for the ease of the hot-air in the bulb, on lower encioser 22, also be provided with louvre 23, can further promote heat dispersion of the present utility model.

Claims

1. the LED bulb of an energy quick heat radiating, comprise lamp holder (1), lampshade (2), LED light-emitting component (3) and drive circuit board (5), it is characterized in that, in the space that lamp holder (1) and lampshade (2) surround, also comprise a radiator (4), the lower end of radiator (4) is connected with lamp holder (1), the upper surface of radiator (4) is the plane, the inside of radiator (4) has cavity (41), described LED light-emitting component (3) is installed on the upper surface of radiator (4), and described drive circuit board (5) is installed in the cavity (41) of radiator inside and with LED light-emitting component (3) and is electrically connected.

2. LED bulb according to claim 1 is characterized in that, described radiator (4) is made by metal material.

3. LED bulb according to claim 2 is characterized in that, described radiator (4) is made by aluminum or aluminum alloy.

4. LED bulb according to claim 2 is characterized in that, the lower end of described radiator (4) is provided with external screw thread (44), and matches with internal thread in the lamp holder (1).

5. LED bulb according to claim 1 is characterized in that, the outer rim of described radiator (4) is provided with radiating fin (43).

6. LED bulb according to claim 1 is characterized in that, described lampshade (2) is made of interconnective upper encloser (21) and lower encioser (22), and described upper encloser (21) is made by transparent material, and described lower encioser (22) is made by insulating materials.

7. LED bulb according to claim 6 is characterized in that, described lower encioser (22) is provided with louvre (23).