CN103363368A - LED (Light Emitting Diode) desk lamp - Google Patents
LED (Light Emitting Diode) desk lamp Download PDFInfo
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- CN103363368A CN103363368A CN2012100893750A CN201210089375A CN103363368A CN 103363368 A CN103363368 A CN 103363368A CN 2012100893750 A CN2012100893750 A CN 2012100893750A CN 201210089375 A CN201210089375 A CN 201210089375A CN 103363368 A CN103363368 A CN 103363368A
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- led
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- lamp housing
- desk lamp
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Abstract
An LED (Light Emitting Diode) desk lamp comprises a base, an electronic module, a support and an LED lighting assembly. The electronic module is arranged inside the base which is connected with the LED lighting assembly through the support; the LED lighting assembly comprises a lamp casing, an light filter, an LED module and a lamp cover assembly which are sequentially arranged from top to bottom; the upper end of the lamp casing is provided with a light transmitting window and the lower end of the lamp casing is provided with the light outlet; the light filter which is fixedly arranged inside the lamp casing is opposite to the light transmitting window; the LED module comprises a PCB (Printed Circuit Board) and an LED which is arranged on the PCB; the PCB which is fixed on the side wall of the lamp casing is perpendicular to the lower end surface of the lamp casing; the principal axis of light beams emitted from the LED is parallel to the lower end surface of the lamp casing; the lamp cover assembly is used for enabling light rays emitted from the LED to pass through and sealing the light outlet which are formed at the lower end of the lamp casing. According to the LED desk lamp, the light and shade contrast ratio of the working area and the non-working area can be reduced, the additional background light does not need to be opened to reduce the indoor light and shade contrast ratio, and electric energy is saved.
Description
Technical field
The invention belongs to field of light fittings, relate in particular to a kind of LED desk lamp.
Background technology
With the desk lamp of fluorescent lamp as light source, simple because making, light fixture is lightweight, the advantages such as the light source cost is low, light fixture low price are being captured most of market in this field at present.Day by day ripe along with the LED lighting engineering in recent years, because LED has light efficiency height, the life-span is long, volume is little, cost is low advantage, therefore LED is more and more obvious in the advantage of lighting field, and application is also more and more extensive, and the application of LED on desk lamp also increases gradually.
But, existing LED desk lamp has following shortcoming: during the illumination of (1) LED desk lamp, the light and shade contrast in working region and inoperative zone is very large, be that the working region that shines of light is very bright, the light irradiation less than the inoperative zone very dark, cause whole indoor environment to the uncomfortable sensation of people, needing to open in addition background light to be thrown light in the inoperative zone again, to reduce indoor light and shade contrast, make indoor environment comfortable, but opening background light will certainly waste electric energy.(2) after the LED desk lamp worked long hours, led light source can send a lot of heats, because LED desk lamp heat dispersion is poor, the heat that causes led light source to send can not in time distribute, and then has reduced the service life of LED desk lamp.
Summary of the invention
The object of the present invention is to provide a kind of LED desk lamp, solved the problem that the light and shade contrast is large and heat dispersion is poor of existing LED desk lamp field of illumination and non-field of illumination.
The present invention realizes like this, a kind of LED desk lamp, comprise base, electronic module, support and LED light fixture, described electronic module is located in the described base, described base is connected with described LED light fixture by described support, described LED light fixture comprises lamp housing, optical filter, LED module and the light cover assembly that sets gradually from top to bottom, wherein:
Described lamp housing upper end offers optical transmission window, and the lower end offers light-emitting window;
Described optical filter is fixedly arranged in the described lamp housing and with described optical transmission window and is oppositely arranged;
Described LED module comprises pcb board and be located at LED on the described pcb board, and described pcb board is fixed on the sidewall of described lamp housing, and the lower surface of described pcb board and described lamp housing is perpendicular, and the main shaft of the light beam that described LED sends is parallel with the lower surface of described lamp housing;
Described light cover assembly be used for light that described LED sends by and seal the light-emitting window of described lamp housing lower end.
Particularly, described light cover assembly comprises transparent panel and frame, and described transparent panel is used for sealing the light-emitting window of described lamp housing lower end, and described frame is used for pushing down the edge of described transparent panel and being fixedly connected with described lamp housing lower end.
Particularly, described optical transmission window is lattice structure, and is located at the centre position of described lamp housing.
Particularly, also be provided with some radiating ribs that are positioned at described optical transmission window both sides, the parallel to each other and spaced set of described each radiating ribs on the described lamp housing.
Particularly, described optical filter is plate shaped, arc or many foldings face shape.
Particularly, described optical filter is fixed on the described lamp housing by compressing tablet and screw, and described compressing tablet and optical filter are fitted, and described screw passes compressing tablet and is fixedly connected with optical filter and with lamp housing.
Particularly, described LED module comprises pcb board, and described pcb board is fixedly connected with the sidewall of described lamp housing, and described LED is located on the described pcb board.
Particularly, described pcb board is electrically connected with described electronic module by the wire of being located in the described support.
Particularly, described support is flexible pipe, is rotationally connected between described flexible pipe and the described lamp housing.
Particularly, the end that described lamp housing is connected with described flexible pipe offers a connecting hole, and the inwall of described connecting hole is provided with some first tooth bars parallel with its axis; The outer wall of the end that described flexible pipe is connected with described lamp housing is provided with some the second tooth bars, and the end of described flexible pipe is located in the described connecting hole, described the first tooth bar and the engagement of the second tooth bar.
Because the present invention arranges optical transmission window at lamp housing, the light of launching from optical transmission window can throw light on to the inoperative zone, therefore can reduce the light and shade contrast in working region and inoperative zone, improved indoor environment, make indoor environment more comfortable, need not open again in addition background light and reduce indoor light and shade contrast, save electric energy.
Because the radiating ribs that arranges on the lamp housing of the present invention can be sent LED in lighting process heat in time distributes, therefore, radiating ribs has improved the heat dispersion of LED desk lamp, has prolonged the service life of LED desk lamp.
Description of drawings
In order to be illustrated more clearly in technical scheme of the present invention, the below will do to introduce simply to the accompanying drawing of required use among the embodiment, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the three-dimensional installation diagram of the LED desk lamp that provides of the embodiment of the invention;
Fig. 2 is the decomposing schematic representation of Fig. 1;
Fig. 3 be Fig. 1 partly cut open schematic diagram;
Fig. 4 is the A place enlarged diagram among Fig. 3;
Fig. 5 is the front schematic view of the lamp housing that provides of the embodiment of the invention;
Fig. 6 is the reverse side schematic diagram of the lamp housing that provides of the embodiment of the invention;
Fig. 7 is the cutaway view of the arc optical filter that provides of the embodiment of the invention;
Fig. 8 is the cutaway view of many foldings face shape optical filter of providing of the embodiment of the invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described.
See also Fig. 1～Fig. 6, a kind of LED desk lamp that the embodiment of the invention provides, comprise base 1, electronic module 2, support 3 and LED light fixture 4, electronic module 2 is located in the base 1, base 1 is connected with LED light fixture 4 by support 3, this LED light fixture 4 comprises lamp housing 41, optical filter 42, LED module 43 and the light cover assembly 44 that sets gradually from top to bottom, wherein:
Centre position, described lamp housing 41 upper end offers the optical transmission window 411 of lattice-shaped, be that optical transmission window 411 is the blind window structure, a part of light that optical transmission window 411 can make light fixture send passes, and the light that passes optical transmission window 411 is used for being thrown light in the inoperative zone; Lamp housing 41 upper ends also are provided with some radiating ribs 412 that are positioned at optical transmission window 411 both sides, each radiating ribs 412 parallel to each other and spaced set, but and lamp housing 41, optical transmission window 411 and radiating ribs 412 integrated injection molding during fabrication, radiating ribs 412 is used for 4 evolutions of heat of LED light fixture are in time distributed, radiating ribs 412 also can grip the irradiating angle that lamp housing 41 is adjusted LED light fixture 4 for staff, because radiating ribs 412 protrudes from the surface of lamp housing 41, therefore can avoid staff to touch the higher lamp housing of temperature 41 surfaces and scald one's hand; Lamp housing 41 lower ends offer light-emitting window 413, and the light that light fixture sends mainly sends from light-emitting window 413, are used for being thrown light in the working region;
Described optical filter 42 is fixedly arranged in the lamp housing 41 and with optical transmission window 411 and is oppositely arranged; During installation, optical filter 42 is fixed on the lamp housing 41 by compressing tablet 421 and screw (not shown), and namely compressing tablet 421 is fitted with optical filter 42, and screw passes compressing tablet 421 and is fixedly connected with optical filter 42 and with lamp housing 41; Optical filter 42 has the effect of optical filtering and reflection ray, and optical filter 42 allows that fraction light sees through, and most of light is reflected back by it;
Described LED module 43 comprises pcb board 431 and is located at LED432 on the pcb board 431, pcb board 431 is fixed on the sidewall 414 of lamp housing 41, pcb board 431 is vertical with the bright dipping actinal surface of lamp housing 41 lower ends, the main shaft of the light beam that LED432 sends is parallel with the bright dipping actinal surface of lamp housing 41 lower ends, and namely LED432 is laterally disposed; Pcb board 431 is electrically connected with electronic module 2 by the wire (not shown) of being located in the support 3;
Described light cover assembly 44 comprises transparent panel 441 and frame 442, and transparent panel 441 seals the light-emitting window 413 of lamp housing 41 lower ends, and transparent panel 44 can prevent also that for the protection of LED module 43 moisture and dust from entering lamp housing 41 inside; Frame 442 is used for pushing down the edge of transparent panel 441, and is fixedly connected with the lower end of lamp housing 41 by the screw (not shown) that is arranged in the installing hole 451 on the frame 442.
During LED desk lamp of the present invention illumination, because LED432 is laterally disposed, namely the main shaft of the light beam that sends of LED432 is parallel with the bright dipping actinal surface of lamp housing 41 lower ends, so the light part that LED432 sends shines optical filter 42, and a part shines transparent panel 44; When the light that sends as LED432 shone optical filter 42, sub-fraction light saw through optical filter 42, and the optical transmission window 411 from lamp housing 41 launches, and was used for being thrown light in the inoperative zone; Most of light that while optical filter 42 also will shine on it reflects, and launch through transparent panel 44, in addition, some shines directly into the light that LED 432 sends transparent panel 44 and launches through transparent panel 44, and the light of launching from transparent panel 44 is used for being thrown light in the working region.
Because the present invention arranges optical transmission window 411 at lamp housing 41, the light of launching from optical transmission window 411 can throw light on to the inoperative zone, therefore can reduce the light and shade contrast in working region and inoperative zone, improved indoor environment, make indoor environment more comfortable, need not open again in addition background light and reduce indoor light and shade contrast, save electric energy.And most of light that LED432 sends is to send away from transparent panel 44, is thrown light in the working region, can not affect the brightness of illumination of working region light.
Because the radiating ribs 412 that arranges on the lamp housing 41 of the present invention can be sent LED432 in lighting process heat in time distributes, therefore, radiating ribs 412 has improved the heat dispersion of LED desk lamp, has prolonged the service life of LED desk lamp.
In a preferred embodiment of the invention, described optical filter 42 can be plate shaped (as shown in Figure 2), arc (as shown in Figure 7) or many foldings face shape (as shown in Figure 8), wherein the light transmittance of plate shaped optical filter 42 is high, but reflecting rate is low, the light transmittance of the optical filter 42 of arc and many foldings face shape is low, but reflecting rate is high, can be according to environment for use and the customer requirements of desk lamp, difform optical filter 42 is set, the optical filter 42 of arc and many foldings face shape can be with more light reflection to the working region, the utilization rate of effective supply light.
In a preferred embodiment of the invention, the surface of described transparent panel 44 is frosting, and transparent panel 44 adopts frosting can effectively prevent dazzle, makes the light of working region soft.
In a preferred embodiment of the invention, as shown in Figure 2, described support 3 is flexible pipe, by flexible pipe is bent, and height that can free adjustment LED light fixture 4.Be rotationally connected between this flexible pipe and the lamp housing 41, be specially: the end that lamp housing 41 is connected with flexible pipe offers a connecting hole 415, and the inwall of connecting hole 415 is provided with some first tooth bars 416 parallel with its axis; The outer wall of the end that flexible pipe is connected with lamp housing 41 is provided with some the second tooth bars 31, in connecting hole 415 is located in the end of flexible pipe after, the first tooth bar 416 and the second tooth bar 31 are meshed.When rotating lamp housing 41, the first tooth bar 416 in the connecting hole 415 is meshed when rotating and with the second tooth bar 31, by rotating lamp housing 41, can change the direction of illumination of LED light fixture 4; When the lamp housing 41 that stops operating, owing to there is the engagement resistance between the first tooth bar 416 and the second tooth bar 31, can make lamp housing 41 keep original position constant.
The above is preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also are considered as protection scope of the present invention.
Claims (10)
1. LED desk lamp, comprise base, electronic module, support and LED light fixture, described electronic module is located in the described base, described base is connected with described LED light fixture by described support, it is characterized in that, described LED light fixture comprises lamp housing, optical filter, LED module and the light cover assembly that sets gradually from top to bottom, wherein:
Described lamp housing upper end offers optical transmission window, and the lower end offers light-emitting window;
Described optical filter is fixedly arranged in the described lamp housing and with described optical transmission window and is oppositely arranged;
Described LED module comprises pcb board and is located at LED on the described pcb board, described pcb board is fixed on the sidewall of described lamp housing, described pcb board is vertical with the bright dipping actinal surface of described lamp housing lower end, and the main shaft of the light beam that described LED sends is parallel with the bright dipping actinal surface of described lamp housing lower end;
Described light cover assembly be used for light that described LED sends by and seal the light-emitting window of described lamp housing lower end.
2. a kind of LED desk lamp according to claim 1, it is characterized in that, described light cover assembly comprises transparent panel and frame, and described transparent panel seals the light-emitting window of described lamp housing lower end, and described frame is pushed down the edge of described transparent panel and is fixedly connected with described lamp housing lower end.
3. a kind of LED desk lamp according to claim 1 is characterized in that described optical transmission window is lattice structure, and is located at the centre position of described lamp housing.
4. a kind of LED desk lamp according to claim 3 is characterized in that, described lamp housing upper end also is provided with some radiating ribs that are positioned at described optical transmission window both sides, the parallel to each other and spaced set of described each radiating ribs.
5. a kind of LED desk lamp according to claim 1 is characterized in that, described optical filter is plate shaped, arc or many foldings face shape.
6. a kind of LED desk lamp according to claim 1 is characterized in that, described optical filter is fixed on the described lamp housing by compressing tablet and screw, and described compressing tablet and optical filter are fitted, and described screw passes compressing tablet and is fixedly connected with optical filter and with lamp housing.
7. a kind of LED desk lamp according to claim 1 is characterized in that, described LED module comprises pcb board, and described pcb board is fixedly connected with the sidewall of described lamp housing, and described LED is located on the described pcb board.
8. a kind of LED desk lamp according to claim 7 is characterized in that, described pcb board is electrically connected with described electronic module by the wire of being located in the described support.
9. a kind of LED desk lamp according to claim 1 is characterized in that, described support is flexible pipe, is rotationally connected between described flexible pipe and the described lamp housing.
10. a kind of LED desk lamp according to claim 9 is characterized in that, the end that described lamp housing is connected with described flexible pipe offers a connecting hole, and the inwall of described connecting hole is provided with some first tooth bars parallel with its axis; The outer wall of the end that described flexible pipe is connected with described lamp housing is provided with some the second tooth bars, and the end of described flexible pipe is located in the described connecting hole, described the first tooth bar and the engagement of the second tooth bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100893750A CN103363368A (en) | 2012-03-29 | 2012-03-29 | LED (Light Emitting Diode) desk lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100893750A CN103363368A (en) | 2012-03-29 | 2012-03-29 | LED (Light Emitting Diode) desk lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103363368A true CN103363368A (en) | 2013-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100893750A Pending CN103363368A (en) | 2012-03-29 | 2012-03-29 | LED (Light Emitting Diode) desk lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103363368A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103857153A (en) * | 2014-03-11 | 2014-06-11 | 广东小天才科技有限公司 | Method and device for adjusting brightness of desk lamp under sudden change of ambient brightness |
| CN106224886A (en) * | 2016-08-16 | 2016-12-14 | 苏州新逸喆电子科技有限公司 | A kind of bending adjustable LED utility light |
| CN111720765A (en) * | 2020-07-13 | 2020-09-29 | 东莞市六减六光电科技有限公司 | LED table lamp and light distribution method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2108842U (en) * | 1991-08-17 | 1992-07-01 | 封晏 | Diffuse reflection desk lamp using cold halogen tungsten spotlight as light source |
| CN2872076Y (en) * | 2005-07-20 | 2007-02-21 | 葛世潮 | Energy-saving light with toning and light-modulating functions |
| US20070115672A1 (en) * | 2005-11-23 | 2007-05-24 | Sol-Light, Llc | Illuminating book light |
| CN201428983Y (en) * | 2009-03-27 | 2010-03-24 | 中山市强力电器科技有限公司 | Ultra-thin eye-protection LED desk lamp |
-
2012
- 2012-03-29 CN CN2012100893750A patent/CN103363368A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2108842U (en) * | 1991-08-17 | 1992-07-01 | 封晏 | Diffuse reflection desk lamp using cold halogen tungsten spotlight as light source |
| CN2872076Y (en) * | 2005-07-20 | 2007-02-21 | 葛世潮 | Energy-saving light with toning and light-modulating functions |
| US20070115672A1 (en) * | 2005-11-23 | 2007-05-24 | Sol-Light, Llc | Illuminating book light |
| CN201428983Y (en) * | 2009-03-27 | 2010-03-24 | 中山市强力电器科技有限公司 | Ultra-thin eye-protection LED desk lamp |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103857153A (en) * | 2014-03-11 | 2014-06-11 | 广东小天才科技有限公司 | Method and device for adjusting brightness of desk lamp under sudden change of ambient brightness |
| CN103857153B (en) * | 2014-03-11 | 2016-03-23 | 广东小天才科技有限公司 | Method and device for adjusting brightness of desk lamp under sudden change of ambient brightness |
| CN106224886A (en) * | 2016-08-16 | 2016-12-14 | 苏州新逸喆电子科技有限公司 | A kind of bending adjustable LED utility light |
| CN111720765A (en) * | 2020-07-13 | 2020-09-29 | 东莞市六减六光电科技有限公司 | LED table lamp and light distribution method thereof |
| CN111720765B (en) * | 2020-07-13 | 2022-10-18 | 梁号 | LED table lamp and light distribution method thereof |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131023 |