A FAN FOR PEOBDUCING AND CIRCULATING PURE AIR
Field of invention:
This invention relates to a fan for producing and circulating pure air.
Background of the invention:
The conventional fan available in the market circulates air in the place where it is installed. It does not produce pure air. The existing air purification systems are available as stand alone equipment and are expensive. A need is felt for an air purification system, which is cost effective.
The object of the invention is to produce and circulate pure air by the fan.
To achieve the said objective the present invention provides a ceiling fan (7)
for producing and circulating pure air comprising:
a rotor and a stator with condenser and power supply, a canopy placed on the condenser characterized in that AC to DC high voltage converter(3) is connected between said power supply and the carbon bmshes (6a & 6b) provided on the surface of the canopy (5) for producing negative ions which when sucked by the movement of said fan neutralizes the positive ions in air around the place where said fan is moving
The said AC to DC high voltage converter is 220 volts AC to 6000 KV DC, the output of said converter is connected to the carbon bmshes on the surface of the canopy. At least three carbon bmshes are provided on the surface of the canopy.
The outer carbon brushes are connected to said converter with high potential and the middle brush is connected to said converter with zero potential to produce negative ions.
The said brushes are held in an adapter or holder.
The present invention also provides a fan for producing and circulating pure air characterized in that AC to DC high AC to DC high voltage converter is connected between power supply and the carbon brushes provided on the surface of the body behind the fan for producing negative ions which when sucked by the movement of the fan neutralizes the positive ions around the place where the fan is moving
Brief Description of the accompanying drawings:
The invention will now be described with reference to the accompanying drawings.
Figure 1 shows the block diagram of a ceiling fan for producing pure air, according to this invention.
Figure 2 shows the perspective view of the canopy in accordance with this
invention.
Figure 3 shows the perspective bottom view of the canopy showing the adapter and the brushes held by the adapter on the surface of the canopy, according to this invention
Figure 4 shows the canopy with the brushes connected with the wire, according to this invention.
Figure 5 shows the complete assembled fan producing pure air, according to this invention.
Detailed Description:
In figure 1 item (1) shows the power supply fed to AC to DC high voltage converter (3) through the connector (2). The high voltage converter (3) converts 220 V AC supply to 6000 KV DC supply and the high voltage DC supply is connected to the carbon brushes (6a & 6b) on the surface of the canopy (5). The outer carbon brushes (6a) receive high potential and the carbon brushes (6b) in the center receives zero potential from the high voltage converter (3). The carbon brushes (6a & 6b) are held in a brush holder or adapter (H). The high voltage converter (3) connected to carbon brushes (6a & 6b) produces negative ions that are sucked through the movement of the ceiling fan (7) and reach below the surface of the fan and thereby neutralize the positive ions present in the place where the fan is installed.
The second output of the connector (2) is connected to condenser (6) of the fan for moving the rotor in the fan (7).
Figures 2 & 3 show the canopy (5) and the carbon brushes (6a & 6b) in a holder (H) on the surface of the canopy (5).
in figure 4, the wire (Wl, W2, W3) are connected to the carbon brushes (6a & 6b). It may be seen that the carbon brush (6b) is connected to middle wire at zero potential and the outer carbon brushes (6a) are connected to the wires (Wl & W3) at high potential to produce negative ions.
Figure 5 shows the complete assembled fan, according to this invention, which produces negative ions at the carbon brushes. The said negative ions are sucked through the fan blades (B) below the fan and neutralize the positive ions, thereby producing pure air.
Advantages:
The ceiling fan producing pure air is cost effective as compared to the existing airpurification systems. The above technology can be applied to any fan, such as table fan, pedestal fan and the like by providing AC to DC high Voltage Converter connected between power supply and the carbon brushes for producing negative ions for neutralizing positive ions.

We claim:
1. A ceiling fan for producing and circulating pure air comprising:
a rotor and a stator with condenser and power supply,
a canopy placed on the condenser characterized in that AC to
DC high voltage converter is connected between said power
supply and the carbon brushes provided on the surface of the
canopy for producing negative ions which when sucked by the
movement of the fan neutralizes the positive ions in air around
the place where the fan is moving and thereby producing and

circulate the pure air.
2. The ceiling fan as claimed in claim 1 wherein said AC to DC high
voltage converter is 220 volts AC to 6000 KV DC, the output of said
converter is connected to the carbon brushes on the surface of the
canopy.
3. The ceiling fan as claimed in claim 1 wherein at least three carbon
brushes are provided on the surface of me canopy.
4. The ceiling fan as claimed in claim 1 wherein the outer carbon
brushes are connected to said converter with high potential and the
middle carbon brush is connected to said converter with zero potential
to produce negative ions.
5. A ceiling fan for producing and circulating pure air substantially as herein described with reference to and as illustrated in the accompanying drawings.