ILLUMINATION DEVICE HAVING AIR PURIFYING APPARATUS

An exemplary illumination device includes a lamp and an air purifying apparatus received in the lamp. The lamp includes a base, a lamp post, a lamp cover, and a light source in the lamp cover. The air purifying apparatus is received in the base. A plurality of inlets and outlets is defined in the base. The inlets and outlets communicate with the air purifying apparatus. Air near the inlets is drawn into the air purifying apparatus via the air inlets, and the air is exhausted out of the base via the air outlets after purified by the air purifying apparatus.

DETAILED DESCRIPTION

An exemplary embodiment of an illumination device of the present disclosure will now be described in detail below and with reference to the drawings.

Referring toFIG. 1, an illumination device100, in accordance with an exemplary embodiment, is provided.

The LED lamp100includes a lamp1and an air purifying apparatus2received in the lamp1. A plurality of air inlets and outlets are defined in the lamp1to make the air purifying apparatus2communicate with the ambient environment. Air near the inlets is drawn into the air purifying apparatus2via the air inlets, and the air is exhausted out of the lamp1via the air outlets after purified by the air purifying apparatus2.

The lamp1includes a base10, a lamp post20assembled on the base10, a lamp cover30fixed on an upper end of the lamp post20, and a lighting source40received in the lamp cover30.

The base10includes a main body11, a first switch13and a second switch15on the main body11.

The main body11is a rectangular cuboid. The main body11comprises a top wall111, a bottom wall113opposite to the top wall111and a plurality of lateral walls112interconnecting the top wall111and the bottom wall113. Alternatively, the main body11may be cylindrical.

An opening115is defined in a central portion of the top wall111. The opening115is used to allow the air purifying apparatus2to be put in the main body11. In this embodiment, the opening115is rectangular. Alternatively, the opening115can be circular, according to the configuration of the air purifying apparatus2.

An upper cover17which substantially matches size and shape of the opening115is used to cover the opening115to seal the air purifying apparatus2in the main body11. The upper cover17defines a plurality of first through holes171therein. The first through holes171are spaced from each other. The first through holes171function as the air inlets. The first through holes171communicate with the air purifying apparatus2in the main body11. In this embodiment, the upper cover17is a rectangular board. Alternatively, the air purifying apparatus2can be received in the main body11without being covered by the upper cover17, whereby the air purifying apparatus2is directly exposed to an outside of the base10.

A plurality of second through holes1121are defined in the lateral walls112of the main body11. The second through holes1121communicate with the air purifying apparatus2in the main body11. In this embodiment, the second through holes1121are arranged in two rows along the lateral walls112, and the second through holes1121function as the air outlets.

The first and second switches13,15are located on the top wall111of the main body11, and are spaced from each other. In this embodiment, the first and second switches13,15are located along an edge of the top wall111and along a transverse direction of the main body11.

The first switch13is a rotary switch, and electrically connects a power source (not shown) to turn on/off the lighting source40of the lamp1. Users can turn on the lamp1by rotating the first switch13clockwise, and turn off the lamp1by rotating the first switch13counterclockwise. Alternatively, users can regulate the light intensity of the light emitted from the lighting source40after the lamp1is turned on. For example, users can increase the light intensity of the lamp1by rotating the first switch13clockwise after the lamp1is turned on; and users can decrease the light intensity of the lamp1by rotating the first switch13counterclockwise until the lamp1is turned off.

The second switch15is also a rotary switch, and electrically connects the power source to turn on/off the air purifying apparatus2. Similar to the first switch13, users can turn on air purifying apparatus2by rotating the second switch15clockwise, and turn off the air purifying apparatus2by rotating the second switch15counterclockwise. Alternatively, users can regulate the fan speed of the air purifying apparatus2after the air purifying apparatus2is turned on. For example, users can increase the fan speed of the air purifying apparatus2by rotating the second switch15clockwise after the air purifying apparatus2is turned on; and users can decrease the fan speed of the air purifying apparatus2by rotating the second switch15counterclockwise until the air purifying apparatus2is turned off.

The lamp post20is located on the top wall111of the main body11, and extends along a direction away from the main body11. In this embodiment, the lamp post20is located between the first and second switches13,15.

The lamp post20is columnar, and includes a main body21and a free portion23bent from the top end of the main body21. The main body21vertically extends from the top wall111of the main body11of the base10. A height of the main body21is larger than that of the main body11of the base10. A length of the free portion23is shorter than a length of the main body21. In this embodiment, the free portion23is perpendicular to the main body21. Alternatively, the free portion23can be connected to the top end of the main body21by a universal joint, such that the free portion23can be pivoted around the top end of the main body21, whereby the lighting direction of the lighting source40in the lamp cover30can be adjusted freely.

The lighting source40is tubular, and includes a plurality of LED chips (not shown) therein.

Also referring toFIG. 2, the air purifying apparatus2includes a fan50, an air filter screen60, a light emitting diode module70, a photo catalyst80and an absorbent90. The fan50, the air filter screen60, the light emitting diode module70, the photo catalyst80and the absorbent90are stacked together.

The fan50is located under the upper cover17, and is communicated with the first through holes171. The fan50is used to draw in the air near the first through holes171into the air purifying apparatus2in the main body11of the base10.

The air filter screen60is located under the fan50, and defines a plurality of filtering holes61therein. In this embodiment, the air filter screen60is used to filter the solid particles with a larger size in the dust or in the smoke mixed in the air.

The LED module70includes a supporting plate71, and a plurality of LED chips73arranged on a bottom wall of the supporting plate71. The LED chips73electrically connect with a circuit (not shown) on the bottom surface of the supporting plate71. The supporting plate71defines a plurality of air guiding holes75therein to allow the air to pass through. In this embodiment, each air guiding hole75is defined between two adjacent LED chips73.

The LED chips73face towards the photo catalyst80located under the supporting plate71. The photo catalyst80can be excited by the light emitted from the LED chips73. Preferably, each LED chip73is an ultraviolet light emitting diode.

The photo catalyst80includes metal oxide nanoparticles. The photo catalyst80can be excited by the light from the LED chips73to deodorize the air, to kill germs in the air, and to decompose the harmful organic in the air. Preferably, the photo catalyst80includes titanium dioxide nanoparticles.

The absorbent90is located in the main body11of the base10, and is under the photo catalyst80. The absorbent90is used to absorb the harmful organic which is difficult to decompose and the particles with a smaller size in the polluted air. Preferably, the absorbent90includes active carbon.

When the illumination device100works, users control the lamp1and the air purifying apparatus2respectively and independently by manipulating the first and second switches13,15. When light is needed, users can control the lighting source40to be turned on via manipulating the first switch13. Alternatively, users can also control the light intensity of the lighting source40via manipulating the first switch13.

When the air is polluted by gases or particles harmful to health, users can turn on the air purifying apparatus2via manipulating the second switch15to purify the air. In detail, when the air purifying apparatus2works, the fan50draws the polluted air near the inlets of the base10efficiently into the air purifying apparatus2. This part of air successively passes through the air filter screen60, the air guiding holes75of the LED module70, the photo catalyst80and the absorbent90to be purified.

And when the polluted air passes through the filter air screen60, solid particles with larger size are filtered by the filter air screen60. And then, the harmful organic in the filtered air is decomposed by the photo catalyst80, the harmful organic which is difficult to decompose and the solid particles with smaller size mixed in the polluted air are absorbed by the absorbent90. And, the purified air is driven by the fan50to exhaust out of the base10via the outlets in the lateral walls112of the main body11.

According to the illumination device100, firstly, because the base10defines a plurality of inlets in the top wall111and a plurality of outlets in the lateral walls112, the polluted air can be purified more efficiently and the purified air can be provided more efficiently. Secondly, because the air purifying apparatus2is located in the main body11of the base10, the circulation path of the air from the inlets to the outlets is shorted, such that the purifying efficiency is improved. Thirdly, because the air purifying apparatus2is located in the main body11of the base10, the air purifying apparatus2does not occupy an extra space of a desk. Fourthly, the air purifying apparatus2in the main body11can be easily installed or removed, and the air purifying apparatus2also can be easily washed for reuse.

It is to be understood that the above-described embodiment is intended to illustrate rather than limit the disclosure. Variations may be made to the embodiment without departing from the spirit of the disclosure as claimed. The above-described embodiment illustrates the scope of the disclosure but do not restrict the scope of the disclosure.