CN202216214U

CN202216214U - Novel heat radiation device of LED bulb lamp

Info

Publication number: CN202216214U
Application number: CN2011203033583U
Authority: CN
Inventors: 赵晏锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-19
Filing date: 2011-08-19
Publication date: 2012-05-09
Anticipated expiration: 2021-08-19

Abstract

The utility model provides the novel heat radiation device of an LED bulb lamp, which comprises a lampshade, an LED module group, a radiator and a PCB board fixedly arranged in a PCB fixing box. The above parts are mutually matched with each other. The lampshade is provided with an air vent and an air filtration unit is arranged in the air vent. Air circulation space is reserved among the PCB fixing box, the radiator and the LED module group. Air convection channels are formed among the radiator, the PCB fixing box, the LED module group and the air vent. According to the utility model, the lampshade is provided with the air vent and air convection channels are formed among the radiator, the PCB fixing box, the LED module group and the air vent. When the device is in use, air on the surface of the radiator is heated to rise upwards, while cold air is inhaled into the device from the bottom of the device. Therefore, the air natural convection is formed and the heat radiation efficiency of products is greatly enhanced. The novel heat radiation device provides a novel heat radiation solution scheme and greatly prolongs the service lives of lamps.

Description

A kind of heat sinking device of LED bulb lamp

Technical field:

The utility model belongs to electronic technology field, relates to a kind of heat sinking device of LED bulb lamp.

Background technology:

LED as semiconductor light sources; Have some incomparable advantages of traditional approach illumination; Such as aspects such as light efficiency, colour rendering index, caloric value, spectrum securities good performance is arranged all; Therefore gradually by customer acceptance, along with its technological development, its cost and reliability also trend towards conventional light source gradually.

Because the characteristics that led light source emits light and heat; Usually the structure of LED bulb can be as shown in Figure 1, all is to come the heat radiation to LED module B with a metal heat sink A, and power panel C is set directly in the radiator; But its radiating effect of this radiator structure is unsatisfactory, directly influences the service life of product.

The utility model content:

The utility model purpose is to solve above problem, and a kind of heat sinking device of LED bulb lamp is provided, and it is simple in structure, can effectively improve the radiating efficiency of product, has prolonged the service life of light fixture greatly.

Further, the utility model can effectively improve the rising angle of bulb, reduces dazzle.

For reaching above-mentioned purpose, the utility model adopts following technical scheme:

A kind of heat sinking device of LED bulb lamp comprises the lampshade that cooperatively interacts, the LED module; Radiator; Pcb board is fixed in the PCB fixed bin, offers passage on the lampshade, is provided with air filter in the hole; Between described PCB fixed bin and radiator and the LED module design and leave the circulation of air space, form air convection channel between said passage and radiator, PCB fixed bin, LED module.

Said passage is positioned under the lampshade.

The passage of offering on the lampshade by sidewall extend upward and radiator, PCB fixed bin, LED module between form air convection channel.

Described air filter is fixing or detachable structure.

Adopt technique scheme, the utility model is owing to open pore on lampshade, and and radiator, PCB fixed bin, LED module between form air convection channel; Rise after radiator surface air is heated during work; Cold air is sucked by the below, forms natural convection air, has promoted the radiating efficiency of product greatly; Be a kind of novel heat radiation solution, prolonged the service life of light fixture greatly.Further in the solution, the passage inwall on the lampshade can reflect the luminous secondary optics that carries out of LED, and has effectively enlarged the rising angle of bulb, and lampshade surface light intensity more even distribution has effectively reduced dazzle simultaneously.The air filtration of lampshade part is made up of HEPA/ photocatalyst/active carbon commonly used etc., can make nonvolatil or can be by ordinary consumer dismounting and the mode changed easily.

Description of drawings:

Below with accompanying drawing the utility model is specified:

Fig. 1 is the utility model prior art constructions sketch map;

Fig. 2 is the structural representation of the utility model embodiment one;

Fig. 3 is the utility model embodiment two structural representations;

Fig. 4 is the light path sketch map of the utility model embodiment two.

The specific embodiment:

Below in conjunction with accompanying drawing and embodiment the utility model is detailed:

Like the embodiment of the utility model of Fig. 2-shown in Figure 4, a kind of heat sinking device of LED bulb lamp comprises the lampshade 1 that cooperatively interacts; LED module 2, radiator 3, pcb board 4 are fixed in the PCB fixed bin 5; Offer passage 6 on the lampshade; Be provided with air filter 7 in the hole, design and leave the circulation of air space between described PCB fixed bin 5 and radiator 3 and the LED module 2, said passage 6 and radiator 3, PCB fixed

bin

5,2 of LED modules form air convection channel.

In practical application, said passage can be positioned under the lampshade, also can be positioned at other appropriate location.

Structure that also can be shown in the embodiment of Fig. 3, the passage of offering on the lampshade extends upward and radiator 3, PCB fixed

bin

5,2 of LED modules form air convection channel by sidewall 8.

Described air filter is fixing or detachable structure, and its filtration fraction is made up of HEPA/ photocatalyst/active carbon commonly used etc.

During work; Like the structure of the embodiment one of Fig. 2, cold air is through air filter, and clean air can be taken away the heat on LED module surface in convection current when taking away radiator surface heat fast; Effectively reduce the temperature of LED module, be suitable for room lighting.

Structure like the enforcement two of Fig. 3; Cold air is through air filter, and clean air guarantees the clean of lampshade inwall, can when illumination, not produce spot or other are bad; Passage inwall on the lampshade can reflect the luminous secondary optics that carries out of LED; Effectively enlarged the rising angle of bulb, lampshade surface light intensity more even distribution has effectively reduced dazzle simultaneously.The air filtration of lampshade part is made up of HEPA/ photocatalyst/active carbon commonly used etc., can make nonvolatil or can be by ordinary consumer dismounting and the mode changed easily.

The utility model is owing to open pore on lampshade; And and radiator, PCB fixed bin, LED module between form air convection channel, during work rise in the air back that is heated in radiator surface, cold air is sucked by the below; Form natural convection air; Having promoted the radiating efficiency of product greatly, is a kind of novel heat radiation solution, has prolonged the service life of light fixture greatly.Further in the solution, the passage inwall on the lampshade can reflect the luminous secondary optics that carries out of LED, and has effectively enlarged the rising angle of bulb, and lampshade surface light intensity more even distribution has effectively reduced dazzle simultaneously.The air filtration of lampshade part is made up of HEPA/ photocatalyst/active carbon commonly used etc., can make nonvolatil or can be by ordinary consumer dismounting and the mode changed easily.

The above only is the preferred embodiment of the utility model, so all according to the described structure of the utility model patent claim, the equivalence that characteristic and principle are done changes or modifies, and includes in the utility model patent claim.

Claims

1. the heat sinking device of a LED bulb lamp comprises the lampshade that cooperatively interacts, the LED module; Radiator; Pcb board is fixed in the PCB fixed bin, it is characterized in that: offer passage on the lampshade, be provided with air filter in the hole; Between described PCB fixed bin and radiator and the LED module design and leave the circulation of air space, form air convection channel between said passage and radiator, PCB fixed bin, LED module.

2. the heat sinking device of a kind of LED bulb lamp as claimed in claim 1 is characterized in that: said passage is positioned under the lampshade.

3. according to claim 1 or claim 2 a kind of heat sinking device of LED bulb lamp is characterized in that: the passage of offering on the lampshade by sidewall extend upward and radiator, PCB fixed bin, LED module between form air convection channel.

4. according to claim 1 or claim 2 a kind of heat sinking device of LED bulb lamp, it is characterized in that: described air filter is fixing or detachable structure.