CN202834993U

CN202834993U - LED (Light Emitting Diode) desk lamp

Info

Publication number: CN202834993U
Application number: CN2012205783095U
Authority: CN
Inventors: 袁明
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-10-12
Filing date: 2012-10-12
Publication date: 2013-03-27
Anticipated expiration: 2022-10-12

Abstract

The utility model discloses an LED (Light Emitting Diode) desk lamp which comprises a lamp holder (1). One end of a lamp post (2) is fixedly arranged on the lamp holder (1), while a lamp socket frame (3) is fixedly arranged at the other end of the lamp post (2). A rectangular aluminum substrate LED light emitting plate (4) and a transparent hood (6) are fixedly installed in the lamp socket frame (3). A constant current power supplier (7), a power supply inlet wire (8) and a switch (9) are further fixedly installed on the lamp holder (1). The contact area of an aluminum radiator (5) of the LED desk lamp and the aluminum substrate of the LED light emitting plate (4) is equal to that of the aluminum substrate. Heat conductive silica gel is coated on the contact faces. The radiator (5) is provided with a reference face which is a flat sheet. More than four radiating sheets are vertically arranged on the radiator, and the surfaces of the radiators are black. According to the radiator (5) of the LED desk lamp provided by the utility model, the radiating effect of the LED desk lamp is improved, the temperature rise of an LED light emitting plate is low and the quality of the radiator is reduced, so that the luminous decay of the LED desk lamp is small, the service life is long, and the radiating cost is lower.

Description

A kind of LED desk lamp

Technical field

The utility model relates to a kind of LED desk lamp.

Background technology

Existing LED desk lamp does not all fill radiator in the market, although save some money, operating temperature is high, and light decay is serious.Service life is short.

The utility model content

It is little that the purpose of this utility model provides a kind of light decay, long service life, and lower-cost LED desk lamp dispels the heat.

For achieving the above object, the utility model LED desk lamp includes lamp socket, be fixed with an end of lamp stand at lamp socket, the other end at lamp stand is fixed with lamp holder, in lamp holder, be installed with rectangle aluminium base LED luminous plaque and transparent lamp shade, also be installed with constant current-supplying device, electric power incoming line and switch on lamp socket, the contact area of the aluminium base of the aluminium radiator of described LED desk lamp and LED luminous plaque equals the aluminium base area, and their contact-making surface is coated with and is pressed with heat conductive silica gel; It is flat sheet that radiator is made basal plane, and vertical row is furnished with the thin slice that dispels the heat more than 4 on it, and black is all made on the surface of radiator.

Because the aluminium radiator basal plane of the utility model LED desk lamp contacts with the aluminium base face of LED luminous plaque, contact area is equal to or greater than the aluminium base area, and contact-making surface is coated with and is pressed with heat conductive silica gel, so that heat conducting thermal resistance drops to is very low, heat conduction efficiency is very high, the basal plane of radiator and the fin above it are thin slice, thereby the area that has strengthened the heat radiation of heat-radiation heat-dissipating and cross-ventilation greatly improves radiating effect, thereby under the certain condition of radiator heat-dissipation efficient, the quality of radiator can greatly reduce, add that spreader surface is made black so that the efficient of heat-radiation heat-dissipating much larger than aluminium true qualities or light color, three unifications have improved the radiating effect of LED desk lamp, the low quality that has reduced simultaneously radiator of the temperature rise of LED luminous plaque, thereby realized that LED desk lamp light decay is little, long service life, the lower-cost purpose of dispelling the heat.

Description of drawings

Below in conjunction with drawings and Examples LED desk lamp of the present utility model is further described.

Fig. 1 is the front view partial sectional view schematic diagram of the utility model LED desk lamp.

Fig. 2 is the top view of the utility model LED desk lamp radiator.

1, lamp socket 2, lamp stand 3, lamp holder 4, LED luminous plaque 5, radiator 6, transparent lamp shade 7, constant current-supplying device 8, electric power incoming line 9, switch

The specific embodiment

As shown in the figure, LED desk lamp of the present utility model, include lamp socket 1, be fixed with an end of lamp stand 2 at lamp socket 1, the other end at lamp stand is fixed with lamp holder 3, rectangle aluminium base LED luminous plaque 4, be fixedly mounted on lamp holder 3 bottoms, rectangle aluminium matter black radiator 5 is installed in the top of LED luminous plaque 4, and equal the area of LED luminous plaque 3 with the contact area of LED luminous plaque 4, transparent lamp shade 6 is fixedly mounted on the below that is in LED luminous plaque 4 on the lamp holder 3, and the inlet wire of constant current-supplying device 7 connects electric power incoming line 8, outlet connects LED luminous plaque 4, and switch 9 is connected in the outlet of constant current-supplying device 7.

Claims

1. a LED desk lamp includes lamp socket, be fixed with an end of lamp stand at lamp socket, the other end at lamp stand is fixed with lamp holder, in lamp holder, be installed with rectangle aluminium base LED luminous plaque and transparent lamp shade, on lamp socket, also be installed with constant current-supplying device electric power incoming line and switch, it is characterized in that: the contact area of the aluminium base of the aluminium radiator of LED desk lamp and LED luminous plaque equals the area of aluminium base, and their contact-making surface is coated with and is pressed with heat conductive silica gel, it is flat sheet that radiator is made basal plane, vertical distribution has the thin slice that dispels the heat more than 4 on it, and black is all made on the surface of radiator.