CN202521364U

CN202521364U - LED desk lamp

Info

Publication number: CN202521364U
Application number: CN2012200387059U
Authority: CN
Inventors: 尹礼军; 王义林; 宋永明
Original assignee: QINGHAI XIFU BAIHONG PHOTOELECTRIC CO Ltd
Current assignee: QINGHAI XIFU BAIHONG PHOTOELECTRIC CO Ltd
Priority date: 2012-02-06
Filing date: 2012-02-06
Publication date: 2012-11-07
Anticipated expiration: 2022-02-06

Abstract

The utility model relates to an LED desk lamp, which comprises a lamp holder, wherein an LED light source is arranged in the lamp holder. The LED desk lamp is characterized in that the lamp holder is provided with an aluminium alloy radiator. Compared with the prior art, the LED desk lamp provided by the utility model has the advantages that the lamp holder is provided with the aluminium alloy radiator, and therefore, the heat radiation performance is better; the lamp holder of the LED desk lamp can be freely bent for shaping, positioning and phasing; the height and the irradiation surface of the LED desk lamp can be freely adjusted; the design is reasonable, and the structure is simple; and an optical ivory PMMA transparent cover is adopted above an LED, thereby effectively avoiding light pollution and protecting the vision of a user. The LED desk lamp further has the characteristics of convenience in use, low manufacturing cost, easiness in assembly and the like.

Description

A kind of LED desk lamp

Technical field

The utility model relates to a kind of light fixture, particularly relates to a kind of LED desk lamp.

Background technology

Global energy shortage and environmental pollution show particularly outstandingly in the China of rapid economic development, and energy-conservation and environmental protection is that China realizes sustainable development institute of social economy urgent problem.As the lighting field of major power consumer, must searching can substitute the green light source of the energy-conserving and environment-protective of new generation of conventional light source.Semiconductor LED is the most possible light source of new generation that substitutes conventional light source in the world today.As everyone knows, LED is called energy-conservation illuminating product always, compares with incandescent lamp and fluorescent lamp, and the LED light fixture has the advantage that volume is little, the life-span is long, light efficiency is high, and can many multiple combinations; LED lamp caloric value is low, does not have heat radiation basically, and led light source power consumption is little, can low-voltage, the low current starting, safe and reliable, be suitable for very much with desk lamp that human body is easier to contact on.Good LED desk lamp design must have the high led light source assembly of reliability, good radiator structure, preferably has the device of the luminous height of scalable; For preventing to cause light pollution, also must possess the diffuser that has anti-dazzle to handle.

The partial L ED desk lamp shell mechanism moulding that can see on the market is single; Do not add the radiator structure of led light source; Radiating effect is very poor, and the lighting angle of desk lamp can not freely be adjusted with shadow surface with height, even has the used LED light emitting source of partial L ED desk lamp directly to be exposed to outer surface; The light that sends does not filter through diffuser, and is very dazzling! Not only this LED desk lamp can not " eyeshield ", and long-term use might cause user's eyesight to descend on the contrary.Though with respect to traditional lighting; It is the desk lamp of light source with incandescent lamp or electricity-saving lamp that led light source is well suited for substituting existing; But in practical application, how to resolve LED device in the LED lamp stand radiating effect, avoid dazzling light to the infringement problem of human eye, the lighting angle that can arbitrarily change desk lamp and height, strengthening whole lamp service life is the technical problem that present urgent need will solve.

The utility model content

The utility model first technical problem to be solved is the LED desk lamp that a kind of good heat dispersion performance is provided to above-mentioned prior art.

The utility model solves the problems of the technologies described above the technological means that is adopted: this LED desk lamp comprises that inside is equipped with the lamp holder of led light source, is characterized in that: said lamp holder is one to have the lamp holder of aluminium alloy heat radiator.Like this; The heat that is produced when led light source is luminous can be dissipated to the external world with free convection, conduction and thermal-radiating mode from bottom to top through air and is dissipated in the ambient air by lamp holder; To eliminate the luminous power decline that causes led light source because of overheated; The colour temperature drift, and then influence the problem of brightness of illumination and light source life.Have the lamp holder of heat dissipation design like this, effect is good, can guarantee whole lamp life-span, good looking appearance, has obviously improved the configuration design space and the external aesthetic property of light fixture.Thereby it has solved the not good short problem in service life that causes of existing LED desk lamp radiating effect.

As improvement, said led light source is a LED COB planar light source, and this planar light source luminous flux and colour rendering index are all high a lot of than general led light source, and color reducibility is better.

Improve, said led light source is provided with optical grade milky PMMA diffuser outward, and this optical grade milky PMMA diffuser is connected with engage thread with said lamp holder through the desk lamp loam cake again.The optical grade milky PMMA diffuser of selecting for use has added anti-UV, materials such as anti-xanthochromia; High temperature resistant; Light transmittance is up to more than 92%, and inner surface adopts fine grinding sand to handle, and effectively like this prevented that directed luminous led light source light from shining directly in the human eye; The discomfort of having avoided light pollution that human eye is caused is effectively protected user's eyesight.Because optical grade milky PMMA diffuser to the diffuse effect of light, makes desk lamp below illumination even, visual effect is very good.

Improve, said lamp holder links to each other with Desk lamp feet through metal hose again, and metal hose intensity is high, and it is effective to finalize the design, arbitrarily bend fixing.Do not have sound, non-structure bounce-back when crooked, can wear electric wire in the metal hose, two ends can be threaded, and ease of assembly connects.Chromium plating can be done in the surface, nickel plating, and electrophoresis, various processing such as baking vanish have increased surperficial glossiness and comfort, aesthetic appeal and long service life accordingly.

Between said lamp holder and the said metal hose, all adopt the lock engage thread to be connected between Desk lamp feet and the metal hose.This mode is prone to assembling, compares in the past screw, beats the glue mode, has simplified assembly process, has improved production efficiency, has also improved safety coefficient when letting structure change firm firm accordingly.Be provided with rubber spongy cushion in said aluminium backing bottom, the anti-skidding effect of matte is arranged, increased the frictional force of Desk lamp feet and contact-making surface, the anti-skidding corresponding safety coefficient that improved of matte.

Compared with prior art, the advantage of the utility model is:

1, the lamp holder of the LED desk lamp of the utility model has aluminium alloy heat radiator, good heat dispersion performance;

2, the LED desk lamp of the utility model is a kind of energy-efficient product, and is environment friendly and pollution-free, meets international standard;

3, the LED desk lamp exquisite appearance of the utility model, light weight, cost is low;

4, lamp holder bend fixing, location and covert arbitrarily in the LED desk lamp of the utility model, desk lamp height and shadow surface can freely be adjusted;

5, led light source adopts in the LED desk lamp of the utility model COB zero diopter source light efficiency and colour rendering index are very high, and color reducibility is better, and optical grade milky PMMA diffuser effectively prevented light pollution, and protection user eyesight is not influenced by light;

6, the LED desk lamp of the utility model integrates moulding, dispels the heat, and does not have ultraviolet ray, non-thermal radiation, and light efficiency is high, and is energy-conservation, long service life.

Description of drawings

Fig. 1 is the structure principle chart of LED desk lamp among the utility model embodiment.

The specific embodiment

Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.

LED desk lamp fitting structure as shown in Figure 1; It comprises metal hose 1, and metal hose 1 top is provided with the lamp holder 2 that adopts aluminium alloy heat radiator to do, and lamp holder 2 is provided with anodal and negative pole tie point, COB type led light source 3; COB type led light source 3 is connected with lamp holder 2 through heat-conducting glue; COB type led light source 3 is provided with optical grade milky PMMA diffuser 4, and said optical grade milky PMMA diffuser 4 is provided with desk lamp loam cake 5 usefulness screw fashion and is connected with lamp holder 2, and 1 time square thread of said metal hose is provided with aluminium backing 6; Aluminium backing 6 tops are provided with press button 7, and there is rubber spongy cushion 8 aluminium backing 6 belows through glue.

Claims

1. LED desk lamp comprises that inside is equipped with the lamp holder of led light source, is characterized in that: said lamp holder is one to have the lamp holder of aluminium alloy heat radiator.

2. LED desk lamp according to claim 1 is characterized in that: said led light source is a LED COB planar light source.

3. LED desk lamp according to claim 1 and 2 is characterized in that: said led light source is provided with optical grade milky PMMA diffuser outward, and this optical grade milky PMMA diffuser is connected with engage thread with said lamp holder through the desk lamp loam cake.

4. LED desk lamp according to claim 1 is characterized in that: said lamp holder links to each other with Desk lamp feet through metal hose.

5. LED desk lamp according to claim 4 is characterized in that: between said lamp holder and the said metal hose, all adopt the lock engage thread to be connected between said Desk lamp feet and the metal hose.