WO2014194644A1

WO2014194644A1 - Multimode illumination desk lamp

Info

Publication number: WO2014194644A1
Application number: PCT/CN2013/089613
Authority: WO
Inventors: 陈琦
Original assignee: Chen Qi
Priority date: 2013-06-07
Filing date: 2013-12-16
Publication date: 2014-12-11
Also published as: WO2014194662A1; CN203273494U

Abstract

Disclosed is a multimode illumination desk lamp, which belongs to the technical field of illumination lamps and comprises a lampshade (102), a bottom case (103) and a control circuit, wherein the bottom case (103) is arranged on the lampshade (102), the bottom case (103) is provided with a substrate (104), the side of the substrate (104) facing the lampshade (102) is provided with a radiator (105), the side of the substrate (104) facing away from the lampshade (102) is provided with at least two LED chips having different powers, and the LED chips are respectively controlled by the control circuit. A light source has at least two different powers, so that a mode selection can be made according to occasions of use. When spotlighting is required, an LED chip operating mode at a high power is selected; and when flood lighting is required, an LED chip operating mode at a lower power is selected. This desk lamp has wider adaptability to usage, and is convenient for a user to use.

Description

Multi-mode lighting table lamp

技术领域 Technical field

The utility model relates to the technical field of lighting lamps, and more particularly to a table lamp for multi-mode lighting.

背景技术 Background technique

The desk lamp is a kind of household appliance used for lighting in people's life. Its working principle is mainly to concentrate the light in a small area, which is convenient for work and study. among them, LED table lamp is LED (Light Emitting Diode) That is to say, the light-emitting diode is a light source table lamp, which is energy-saving, environmentally friendly, safe and reliable compared with the conventional incandescent lamp and fluorescent lamp.

In the prior art, the LED desk lamp part adopts high power LED The optical lens has the advantages of small volume, low power consumption, small heat generation, long life, fast response, safe low voltage, good weather resistance, good directionality, and no influence on the non-irradiation range. Strong, concentrated range of light, But sometimes it is more glaring, and the eyes are prone to fatigue or even injury after a long time. Some lamps use multiple low-power LEDs The array layout and the diffusion plate are uniform, which has the characteristics of weak light intensity and wide illumination range, but also due to the wide illumination range and low illumination brightness, which easily causes light pollution and waste in the non-irradiated area. Therefore, in summary, the current LED The light source of the desk lamp is of specific power, the mode is single, and it has a large use restriction, resulting in insufficient adaptability of use.

实用新型内容 Utility model content

The present invention aims to solve the above technical problems at least to some extent.

The object of the present invention is to provide a table lamp that improves the adaptability and ease of use of multi-mode illumination.

The technical solution adopted by the utility model to solve the technical problem is: a multi-mode lighting table lamp, comprising a lamp cover, a bottom case and a control circuit, wherein the bottom case is disposed on the lamp cover, and the bottom case is provided with a substrate, a heat sink is disposed on a side of the substrate facing the lamp cover, and the substrate is provided with at least two different powers on a side facing away from the lamp cover LED chips, which are respectively controlled by a control circuit.

The light source of the present invention has at least two different powers, so that mode selection can be made according to the use occasion. When you need spotlighting, you can choose a higher power LED The working mode of the chip plus the optical lens; conversely, when the floodlighting is required, the LED with a lower power can be selected. The working mode of the chip plus the diffusion plate. Therefore, the utility model has wider adaptability for use, and the same lamp has different modes, which is convenient for the user to use.

In one embodiment, the LED chip includes at least one high power LED chip and at least one low power LED Chip. Since high-power LEDs and low-power LEDs are common terms used by those skilled in the art, their definitions will not be described here. Among them high power LED When the chip is used for spotlighting, it is suitable for fine work or bedside reading without affecting the sleep of others. The low-power LED chip is used for floodlighting, such as general writing and normal working conditions.

Due to the high illumination of high-power LEDs, the illumination range is concentrated; low-power LEDs The illuminance is weak and the illumination range is wide. Therefore, preferably, the high-power LED chip is disposed at the center of the substrate, and the low-power LED chip is disposed around the high-power LED chip.

More preferably, one side of the high-power LED chip facing away from the substrate is provided with an optical lens, and the low-power LED A diffusion sheet is provided on one side of the chip facing away from the substrate. Optical lenses are mainly used for concentrating and guiding light of LED cold light source series, according to different LEDs. The angle of the outgoing light is designed to match the light curve, which increases the optical reflection, reduces the light loss, and improves the light efficiency. The diffuser can evenly emit light from the LED chip.

In one embodiment, different power LEDs There are lighting accessories between the chips to block the two kinds of light sources, and to improve the aesthetics and competitiveness of the products, and to attract consumers' attention.

The utility model has the beneficial effects that the light source of the utility model has at least two different powers, so that the mode selection can be performed according to the use occasion. When you need spotlighting, you can choose a higher power LED The working mode of the chip plus the optical lens; conversely, when the floodlighting is required, the LED with a lower power can be selected. The working mode of the chip plus the diffusion plate. Therefore, the utility model has wider adaptability for use, and the same lamp has different modes, which is convenient for the user to use.

附图说明 DRAWINGS

1 is a schematic cross-sectional view of an embodiment of the present invention.

Figure 2 is a partial enlarged view of Figure 1.

3 is a schematic perspective view of an embodiment of the present invention.

Figure 4 is a partial enlarged view of Figure 3.

Figure 5 is a schematic view showing the use of an illumination mode of the present invention.

Figure 6 is a schematic view showing the use of another illumination mode of the present invention.

The drawings are for illustrative purposes only and are not to be considered as limiting of the present invention; some of the components of the drawings may be omitted, enlarged or reduced for better illustration of the embodiments, and do not represent the dimensions of the actual product; It will be understood by those skilled in the art that certain known structures and their description may be omitted.

具体实施方式 detailed description

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1 to FIG. 4, a multi-mode lighting table lamp of the present invention includes a bottom bracket 101 and a lamp cover 102. And a control circuit (not shown), the lamp cover 102 is supported by the bottom bracket 101, the bottom of the lamp cover 102 is provided with a bottom case 103, and a portion of the bottom case 103 located inside the lamp cover is provided with a substrate 104. In this embodiment, an aluminum substrate commonly used in the art is used. A heat sink 105 is disposed on a side of the substrate 104 facing the lamp cover 102 for heat dissipation; and the substrate 104 faces away from the lamp cover 102. One side is provided with at least two LED chips of different powers, and the LED chips are respectively controlled by a control circuit, and can be selected according to the use occasion.

In this embodiment, the LED chip includes a high power LED chip 106 and a low power LED chip 107. . The high-power LED chip 106 is an LED lamp bead and is fixed on the substrate through the fixing member 108. The central, spotlighting occasions, suitable for fine work or bedside reading does not affect the state of sleep, etc., there are a variety of power options in manufacturing. Low power LED chip 107 surrounds high power LED chip 106 Arrangement, for floodlighting applications, such as general writing and normal working conditions, there are also a variety of power options for manufacturing. Of course, in other embodiments, the LED chip can include a high power LED chip and a variety of low power LED chip, or a free combination of multiple high power LED chips and low power LED chips.

In this embodiment, the side of the high-power LED chip 106 facing away from the substrate 104 is provided with an optical lens 109, and the low power A side of the LED chip 107 facing away from the substrate 104 is provided with a diffusion sheet 110. There is also a lighting member between the high power LED chip 106 and the low power LED chip 107. .

As shown in Figure 5, when concentrating illumination is required, the high-power LED chip operating mode is selected and the light is concentrated. Figure 6 As shown, when floodlighting is required, the low power LED chip operating mode is selected and the light is diverging. Therefore, the utility model has wider adaptability for use, and the same lamp has different modes, which is convenient for the user to use.

It is apparent that the above-described embodiments of the present invention are merely illustrative of the present invention and are not intended to limit the embodiments of the present invention. Other variations or modifications of the various forms may be made by those skilled in the art in light of the above description. There is no need and no way to exhaust all of the implementations. Any modifications, equivalent substitutions and improvements made within the spirit and scope of the invention are intended to be included within the scope of the appended claims.

Claims

A multi-mode lighting table lamp, comprising a lamp cover, a bottom case and a control circuit, wherein the bottom case is disposed on the lamp cover, the bottom case is provided with a substrate, and the substrate is provided with a heat sink on a side facing the lamp cover, wherein The side of the substrate facing away from the lamp cover is provided with at least two different powers LED chips, which are respectively controlled by a control circuit.
A multi-mode lighting table lamp according to claim 1, wherein said LED chip comprises at least one high power LED chip and at least one low power LED chip.
The multi-mode lighting table lamp according to claim 2, wherein the high-power LED chip is disposed at a center of the substrate, and the low-power LED The chip surrounds the high power LED chip layout.
The multi-mode lighting table lamp according to claim 3, wherein the high power LED chip is provided with an optical lens on a side facing away from the substrate, the low power A side of the LED chip facing away from the substrate is provided with a diffusion sheet.
The multi-mode lighting table lamp according to any one of claims 1 to 4, characterized in that the lighting fixtures are arranged between the LED chips of different powers.