CN202228950U

CN202228950U - Thin type large-power LED (light-emitting diode) bulb

Info

Publication number: CN202228950U
Application number: CN2011202667149U
Authority: CN
Inventors: 陈刚
Original assignee: DUJIANGYAN HUAGANG ELECTRONIC TECHNOLOGY CO LTD
Current assignee: DUJIANGYAN HUAGANG ELECTRONIC TECHNOLOGY CO LTD
Priority date: 2011-07-27
Filing date: 2011-07-27
Publication date: 2012-05-23
Anticipated expiration: 2021-07-27

Abstract

The utility model discloses a thin type large-power LED (light-emitting diode) bulb which comprises LED lamp beads (1), a light distribution lamp cover (2), a radiating body (3), a fan (4), a driving circuit assembly (5) and a rear cover, wherein all parts are connected and assembled into a whole through the radiating body (3); the center of the bottom surface of the radiating body (3) is inwards depressed to form a fan containing cavity (7); a plurality of radiating fins (8) uniformly distributed at the peripheral area are formed on the back surface of the radiating body (3); a plurality of air ducts (9) are formed in the radiating body (3); two end ports of each air duct (9) are respectively positioned on the inner wall of the fan containing cavity and the back surface of the radiating body; the fan (4) is installed in the fan containing cavity of the fan; the LED lamp beads (1) are uniformly distributed on the bottom surface of the radiating body and surround the peripheral area of the fan; and the light distribution lamp cover (2) is sealed and covered at the front ends of the LED lamp beads (1) only. By adopting the structure, the thin type large-power LED bulb has the advantages of good radiating performance and thin and light body.

Description

Slim high-power LED bulb

Technical field

The utility model relates to the LED field of light fittings, particularly slim band fan high-power LED bulb.

Background technology

LED (light emitting diode) has advantages such as luminous efficiency height, power saving, long service life and energy-conserving and environment-protective, along with the continuous expansion of range of application, the Design of Luminaires that adopts led light source has been proposed more requirement; Wherein heat dissipation problem is exactly one of major issue that influences the LED application, and in order to satisfy the increasingly high requirement of illumination, way commonly used now is a plurality of power-type LEDs to be concentrated on the light fixture use; This just causes the caloric value of light fixture suddenly to increase and is easy to generate alluvial, if untimely elimination will cause problems such as the reduction of wafer luminous efficiency, fluorescent material accelerated ageing, causes performance reduction, service life to shorten; Traditional LED light fixture adopts the heat sink conception of passive type, dispels the heat through the radiation of radiator, can't satisfy the heat radiation needs of high-power LED lamp; For this reason, Chinese patent document CN201401764Y just discloses a kind of " high-power LED lamp structure that has fan ", and this high-power LED lamp structure that has fan is characterised in that: be provided with fan; Radiator is the tubular body that is provided with the hollow tube chamber; Fan is fixed in the center of radiator tail end, though this high-power LED lamp structure that has fan is incorporated into fan in the heat sink conception of LED, has improved heat dispersion; But on the one hand; This way of acquiring fan in the radiator outside causes fitting structure complicated, is not easy to the assembling production of light fixture; Be difficult to guarantee the reliability of fan installation; On the other hand, this structure can cause the light fixture height to increase, and can't adapt to highly conditional application demand.

The utility model content

The purpose of the utility model is to provide a kind of high-power LED bulb, and is not only rational in infrastructure, can adapt to a plurality of power-type LED high density and concentrate the heat radiation requirement that brings, and whole light fixture body is frivolous, can better adapt to highly conditional application.

The utility model adopts following technical scheme to realize: slim high-power LED bulb; Comprise LED lamp pearl, luminous intensity distribution lampshade, radiator, fan, drive circuit assembly and bonnet, each parts assembles through radiator and is integral, said radiator bottom surface mediad sunken inside; Form fan and take in the chamber; The radiator back side is formed with some radiating fins that evenly are arranged in the neighboring area, in the radiator body, is formed with some air channels, and the two-port in air channel lays respectively at fan and takes in the cavity wall and the radiator back side; Fan is placed in fan and takes in the chamber; LED lamp pearl evenly is arranged in the radiator bottom surface, is centered around the fan neighboring area, only in the capping of LED lamp pearl front end the luminous intensity distribution lampshade is arranged.

Adopt the slim high-power LED bulb of this structure; Radiator fan has been moved to light fixture foremost; Compressed whole height, in radiator, be formed with some air channels, radiator fan distributes from the radiator back through the air channel from light fixture front end suck air; Can take away the heat on the radiator rapidly, have perfect heat-dissipating, the frivolous advantage of body.

Below in conjunction with accompanying drawing and embodiment the utility model is further set forth, the protection domain of the utility model includes but are not limited to accompanying drawing and the disclosed content of embodiment.

Description of drawings

Fig. 1 is the planar structure sketch map of the utility model;

Fig. 2 is the blast structural representation of the utility model;

Fig. 3 is the blast structural representation at another visual angle of the utility model.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is done further to set forth.

To shown in Figure 3, this slim high-power LED bulb is assembled by LED lamp pearl 1, luminous intensity distribution lampshade 2, radiator 3, fan 4, ring-type aluminium base 6, drive circuit assembly 5 and bonnet like Fig. 1, and each parts assembles through radiator 3 and is integral; Radiator 3 bottom surface mediad sunken insides form fan and take in chamber 7, are formed with some straight-cylindrical air channels 9 in the body of radiator 3; Air channel 9 connects on radiator; And the air-out port in air channel 9 is distributed in the whole back side of radiator, and the air intake port in air channel 9 only is distributed in the inwall that fan is taken in the chamber, and the back side uniform ring of radiator 3 is around being placed with some radiating fins 8; Drive circuit assembly 5 is installed in the middle position at radiator 3 back sides; Fan 4 is placed in fan and takes in the chamber 7, and penetrates radiator 3 and be connected with drive circuit assembly 5, and some LED lamp pearls 1 are fixedly connected on four ring-type aluminium bases 6; Ring-type aluminium base 6 fits tightly the bottom surface at radiator 3; Be centered around the neighboring area of fan 4, an annular light distributing cap is sealed on the front end of LED lamp pearl 1, and fan 4 is exposed to the bottom surface of radiator 3.

The embodiment of the utility model is not limited to the foregoing description, all should belong within the protection domain of the utility model in the various variations that do not break away under the utility model design prerequisite.

Claims

1. slim high-power LED bulb; Comprise LED lamp pearl (1), luminous intensity distribution lampshade (2), radiator (3), fan (4), drive circuit assembly (5) and bonnet, each parts assembles through radiator (3) and is integral, and it is characterized in that: said radiator (3) bottom surface mediad sunken inside; Form fan and take in chamber (7); Radiator (3) back side is formed with some radiating fins (8) that evenly are arranged in the neighboring area, in radiator (3) body, is formed with some air channels (9), and the two-port of air channel (9) lays respectively at fan and takes in the cavity wall and the radiator back side; Fan (4) is placed in fan and takes in the chamber; LED lamp pearl (1) evenly is arranged in the radiator bottom surface, is centered around the fan neighboring area, only in LED lamp pearl (1) front end capping luminous intensity distribution lampshade (2) is arranged.