Air purifier

An air purifier with bactericidal and odor removal effect is disclosed. The air purifier comprises a fan module; UV light source; and light catalyst, wherein the fan module withdraws external air into the purifier and the UV light source and the light catalyst are provided at the rear section of the fan module so as to receive the external air withdrawing by the fan module, and the UV light source and the light catalyst are configured to form a passage; the radiation of UV light source onto the light catalyst causes the formation of free radicals in air which decompose bacteria, micro dust and suspension within the air, to clean air odor removal and air drying.

TECHNICAL FIELD OF THE INVENTION

The present invention relates to an air purifier, and in particular, to one which has bactericidal and odour removal effect.

DESCRIPTION OF THE PRIOR ART

Generally, there are bacteria, dust and suspensions in the air. Unpurified air or dirty air affects our health to certain extent. Conventional air purifiers in the market use high voltage impact to decompose bacteria, dust and suspension in the air. These conventional air purifiers are inconvenient to use and are not able to produce clean air. Accordingly, it is an object of the present invention to provide an air purifier which has bactericidal effect and odour removal effect and can generate purified air.

SUMMARY OF THE INVENTION

It is an object of the present invention to provide an air purifier with bactericidal and odour removal effect comprising a fan module; a UV light source; and a light catalyst, wherein the fan module draws external air into the purifier and the UV light source and the light catalyst are provided behind the fan module so as to receive the external air drawn by the fan module, and the UV light source and the light catalyst are configured to form a passage; the radiation of UV light source onto the light catalyst causes the formation of free radicals in air which decompose bacteria, micro dust and suspension within the air, thereby cleaning the air.

Yet still another object of the present invention is to provide an air purifier, wherein the fan module, UV light source and light catalyst are installed within a body, and air vents are provided respectively at the front and rear sections of the body to allow air to enter or allow air to leave.

A further object of the present invention is to provide an air purifier, wherein the UV light source includes UV LED, UV tubes or other light emitting elements which generate UV light.

Yet another object of the present invention is to provide an air purifier, wherein the upper and lower edges of the rear section of the body are provided with rails for the mounting of a fragrant or essence oil allowing fragrant air to be released to the air from the rear air vent.

Other objects, and advantages will become more apparent in view of the following detailed description in conjunction with the accompanying drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring toFIGS. 1 to 3, there is shown an air purifier in accordance with the present invention. The air purifier comprises a body1, a fan module2mounted in the body1, a UV light source3and a light catalyst4mounted at the rear section of the fan module2. The front and rear sections of the body1are provided with vents11,12to allow air to enter and to leave the air purifier. The fan module2draws external air to the air purifier, and the UV light source3and the light catalyst4are mounted behind the fan module2to receive the external air drawn by the fan module2. The upper and lower edges of the rear section of the body1are provided with rails121,122, for the mounting of fragrant or essence oil.

The UV light source3includes UV LED, UV tubes and other light emitting elements which generate UV light. The light catalyst4is provided under the UV light source3, and the UV light source3and the light catalyst4are at a distance apart and are configured to form a passage5to allow external air to pass through.

The fan module2of the air purifier is used for drawing external air into the body1. The UV light source3and the light catalyst4receive the external air drawn by the fan module2such that the external air passes through the passage5. The UV light source3radiates onto the light catalyst4such that the air generates free radicals which decomposes bacteria, dust particles, suspensions, etc. The cleaned air is then discharged. Thus, the air purifier of the present invention provides the effect of air cleaning, odour removal and drying.

As shown inFIG. 4, there is shown the implementation of the air purifier of the present invention. The air purifier is placed at an appropriate location. The fan module2is switched on to draw air into the body1from the external. Air is drawn from the external into the air purifier via the air vents11, which are located at the front section of the body1. The UV light source3and the light catalyst4receive the external air which is drawn by the fan module2. The external air passes through the passage5. When the external air passes through the passage5, the UV light source3radiates the light catalyst4such that the air generates free radicals, which decompose bacteria, dust particles, suspensions, etc in the air. The cleaned air is discharged via the vents12located at the rear section of the body1. Thus the air is recycled until the air is cleaned, odour is removed and air is dried.

FIG. 5shows another implementation of the air purifier of the present invention. Referring again toFIG. 2, the upper and lower edges of the rear section of the body1are provided with rails121,122for the mounting of fragrant6or essence oil. The fragrant6(or the essence oil) is placed into a box with a flat board61. The flat board61is slid into engagement with the rails121,122. In application, the power switch of the UV light source3is switched off, and the rotating of the fan module2draws external air via the vents11positioned at the front section of the body1. In the course of discharging the air, the fragrant6(or essence oil) is carried by air, and so the air has a fragrant odour.