GB2117676A - A method and apparatus for cleaning air in rooms - Google Patents

Abstract

The apparatus comprises a combination of a negative ion generator A1 and a positive ion electrifier B. The different kinds of particle, such as particles of dust and smoke, in the contaminated air within a room are charged negatively by negative ions generated by the negative ion generator A1. The negatively charged particles are forcedly drawn into the path of an air circulation stream created by a fan 58a within the positive ion electrifier B. When the negatively charged particles pass through a screen 72 in their path, they are absorbed by the screen 72 which is positively charged by the positive ions from the positive ion electrifier B. Air passing through the screen 72 is circulated within the room as clean air. The negative ion generator A1 includes a flexible sheet 28a coated with a conductive film 28b. <IMAGE>

Description

SPECIFICATION A method and apparatus for cleaning air in rooms This invention relates to a method and apparatus for cleaning air in various kinds of rooms by which the living environment in daily life is greatly improved.

Air in rooms in which we live is generally contaminated or polluted. It would be better is a room employs a ventillator. Recently, however, the air shut-out type of house is being increased because of needs of soundproof, deodorization and saving energy. From this fact, windows or doors have to be opened periodically for ventilation.

It is impossible for human eyes to see air contamination in rooms so that most of people don't see this situatibn.

Air includes a large amount of corpuscles like dust, smell, smoke, virus, pathogen, many kinds of dead microorganism, and excrement of microorganism which are floating. They can not be observed by human eyes.

In the room in which a smoker lives, smoke particles or nicotine particles stain windows, doors, walls, and furniture with tar ones thereof, and makes them yellow, accompanying with smell. It goes without saying that such a situation has bad influences on one's family.

Recently, in Japan, it was reported repeatedly that " Kawasaki disease" accompanied with high fever got about and many infants and children suffered from it. As a result of studying this disease, it has been found that when infants and children, who live under inadequate ventilation rooms, unconsciously breathe in dust including dead fleas, ticks, lice and excrement of them floating in air, they attach to the blood vessel wall after entering into blood, which reduces functions of blood circulation and the heart, and sometimes accompanies with high fever, and then, in severe case, arrive to death. However, the conventional type of the ventilator must be attached and fixed to walls or windows, and moreover is a large scale. Therefore it is economically impossible to employ ventilators in all rooms.

In view of this point, the main object of this invention is to provide a method and apparatus for cleaning air in rooms in order to lead sanitary, healthy and cultural life.

The object of this invention is to provide compact and cheaper apparatus for cleaning air in rooms which comprises a combination of a pair of a negative ion generator and a positive ion electrifier.

A further object of this invention is to provide portable apparatus for cleaning air in rooms.

A further object of this invention is to provide apparatus for cleaning air in rooms which is easily maintained and taken charge of.

A still further object of this invention is to provide apparatus for cleaning air in rooms which is durable, have fewer troubles and runs economically.

A still further object of this invention is to provide apparatus for cleaning air in rooms which is safe and convenient to handle.

The above objects and other advantages of this invention will become more apparent from specification and drawings.

Figures 1 and 2 are a circuit diagram and an exterior view respectively showing the first embodiment of a negative ion generator constituting this invention; Figures 3 and 4 are a circuit diagram and an exterior view respectively showing other embodiment of a negative ion generator constituting this invention; and Figures 5 and 6 are a circuit diagram and an exterior view respectively showing a positive ion electrifier constituting this invention.

Referring now to the drawings, it will be observed from Fig. 1 that apparatus for cleaning air in rooms of this invention comprises a combination of a pair of negative ion generators (Al) and (A2) for generating negative electric potential and discharging negative ions into air and a positive ion electrifier (B) for generating positive electric potential and electrifying positive ions.

As will be shown in Figs. 1 and 2, the negative ion generator (Al) comprises a power source part (10), a current flow display circuit (1 2), a booster rectification circuit ( 1 4) and a negative ion generating end part (16).

The power source part (10) employs a joint plug (1 8) for commercial power source protruded outwardly therefrom. A box (20) housing the current flow display circuit (1 2) and the booster rectification circuit (14) is connected through a code (22) to the negative ion generating part (16). The power source part (10) is applied the general domestic power source (AC 1 OOV or 11 5V). The power source part (10) couples a fuse (24) in series and a neon lump in parallel through a resistor (R 1 ) respectively as the current flow display circuit (12). The neon lump shows presence or absence of input voltage. The booster rectification circuit (14) is a triple voltage direct current power circuit employing silicon diodes. Three diodes (D1), (D2) and (D3) are connected in series one another.A condenser (C1) is arranged to diodes (D2) and (D3) in a row. Arranged condensers (C2) and (C3) in series are connected to diodes (D1) and (D2) in a row. The power source part (10) applies voltage to the positive end of the diode (D3) and the middle tap between the condensers (C2) and (C3) through a resistor (R2) for protecting diodes. The negative ion generating part (16) of which the ion generating plate (28) is connected to the negative end of the diode (D1) through a high resistor (R3) for protecting human bodies. The ion generating plate (28) comprises a flexible and thin plate (28a) of a cloth sheet or a synthetic resin sheet which is covered with a conductor film of aluminium foil or of coated carbonic rubber powder by vaporization.The negative ion generator (Al) inputs alternating current voltage of 100V or 11 5V through the resistor (R 1) to the triple voltage direct current power circuit and allows the condensers (C1), (C2) and (C3) to discharge and charge electrons. Simultaneously the negative ion generator (Al) obtains some triple pulsating current voltage (DC-380V) in the negative side thereof by the rectification effect of the diodes (D1), (D2) and (D3) and supplies the ion generating plate (28) with negative ions through the resistor (R3).

The negative ion generator (Al) simply consists of diodes and condensers so that it is provided cheaply.

As shown in Figs. 3 and 4, a negative ion generator (A2) of other embodiment comprises a power source (30), a current flow display circuit (32), a booster rectification circuit (38) including a booster circuit (34) and a rectification circuit (36), and a negative ion generating part (40). A box (42) houses the power source (30), the current flow display circuit (32), the booster circuit (34) and the rectification circuit (36) therein, and is connected to the ion generating part (40) through a code (44).

The power source (30) comprises three dry sells (El), (E2) and (E3) (each dry sell is 1.5V) arranged in series and employs a power switch (S1) at the one end. The current flow display circuit (32) consists of a light emit diode (LED) and a resistor (R11) connected in parallel to dry sells (El), (E2) and (E3) and the power switch (S1) arranged in series. In this structure, the resistor (R11) is means for adjusting current of the light emit diode (LED).

The booster circuit (34) comprises a NPN-type transistor (Tr), a transformer (Th) and a resistor (R12). The one end of the primary coil of the transformer (Th) is connected through the resistor (R12) to the positive terminal of the power source (30) and the other end of the primary coil is connected to the base terminal of the transistor (Tr). The emitter terminal is grounded. The collector terminal is connected to the one end of the secondary coil of the transformer (Th). The other end of the secondary coil and the emitter terminal are used as output terminals of the booster circuit (34).

The middle tap of the secondary coil is fed back to the resistor (R 12) of the primary coil.

The transistor (Tr) forms arl oscillator circuit interrupting primary current of the transformer (Th) and outputs pulsating current having high voltage (150V to 450V) to the secondary of the transformer (Th). The pulsating current is rectified by the rectification circuit (36) consisting of the condensers (C11), (Cl 2) and (C 13) and the diodes (D1 1), (D12) and (D13).

The rectification circuit (36) is connected through a resistor (R13) to the generating part (40). The box (42) has a connection jack (46) at one end thereof. The ion generating part (40) comprises the ion generating plate (48) jointing to an end of a code (44) having proper length. The generating plate (48) comprises a flexible and thin plate (48a) of a cloth sheet or a synthetic resin sheet. The flexible and thin plate (48a) is covered with a conductor film of aluminium foil or of coated carbonic rubber powder by vaporization.

In the negative ion generator (A2), pushing the power switch (S1) makes the light emit diode (LED) of the current flow display circuit (32) light and simultaneously produces negative electric potential (- 150V to - 450V) in the generating part (40). As a result, the generating plate (48) is filled with negative ions.

As described above, the negative ion generator (A2) simply consists of dry cells as a power source, a transistor, a transformer, condensers and diodes. Therefore it is provided cheaply and can be used easily anywhere because dry sells are used as a power source.

As shown in Figs. 5 and 6, a positive ion electrifier (B) comprises a power source part (50), a current flow display circuit (52), a booster rectification circuit (54), an output screen (56) and a fan motor (58). The box (60) housing the current flow display circuit (52) and the booster rectification circuit (54) is attached to one side of the interior of a cage box (62). In the front face of the cage box (62), longitudinal bars (64) are sticked to create a wind discharge opening (62a) for cleaned air. The output screen (56) through which air passes freely is extended by covering an air absorption opening (62b) created on the bottom of the cage box (62). In the middle of the interior back side of the cage box (62), the fan motor (58) is set. (66) in the drawings are legs.

The power source part (50) is applied to the general domestic power source (AC 100V or 115V). In the current flow display circuit (52), a fuse (68) coupled to a power switch (S2) in series is connected to the power source part (50) in series. A neon lump (70) is arranged in a row through a resistor (R21) to the power source part (50) and shows presence or absence of input voltage by putting on or out the light. The fan motor (58) is connected to the resistor (R21) and the neon lump (70) in a row. The fan motor (58) of an induction type is actuated as soon as the neon lump (70) lights up with the rotation of the fan (58a).

The booster rectification circuit (54) is a tenfold voltage direct current power circuit employing silicon diodes. Eight diodes (D21) to (D28) are arranged in series. Condensers (C21), (C23), (C25) and (C27) are connected in a row to between diodes (D21) and (D22), between diodes (D23) and (D24), between diodes (D25) and (D26), and between diodes (D27) and (D28) respectively. Condensers (C21), (C23), (C25) and (C27) are connected to between the power switch (S2) and the fan motor (58) through a resistor (R22) for protecting diodes. Voltage from the power source part (50) is applied to the negative end of diodes (D22), (D24), (D26) and (D28).Condensers (C22), (C24), (C26) and (C28) are arranged in a row to between diodes (D22) and (D23), between diodes (D24) and (D25), between diodes (D26) and (D27), and the positive end of the diode (D28), and are fed back to the negative ends of diodes (D21), (D23), (D25) and (D27), respectively.

In the output screen (56), the positive end of the diode (D28) is coupled to an ion screen or an ion filter (72) through a resistor (R23) for protecting human bodies. The output screen (56) is disposed in front of the fan (58a). The ion screen or the ion filter (72) is of plastic foams such a conductor vinyl foam which is superior in air-permeability.

The positive ion electrifier (B), which has the above described structure, inputs an alternating current voltage of 100V or 11 5V through the resistor (R22) to the tenfold voltage direct current power circuit which is the booster rectification circuit (54) and then allows the condensers (C21) to (C28) to charge or discharge electrons. Simultaneously, the booster rectification circuit (54) obtains tenfold pulsating current voltage (about DC-1000V) on the positive side by the rectification effect of the diodes (D21) to (D28) and supplies the ion screen or the ion filter (72) with positive ions through the resistor (R23).

Embodiments of this invented method will be explained, referring to Figs. 1 to 6.

In case of using the negative ion generator (Al), a power connective plug (18) protruded from the box (20) is attached to an outlet (not shown) of the commercial power source and then the neon lump (26) lights. Simultaneously the generating plate (28) of the ion generating part (16) is filled with negative ions and discharges negative ions into air after saturation of negative ions.

In case of using the negative ion generator (A2), the power switch (S1) is closed after recognition of presence of dry sells (El), (E2) and (E3) and the light emit diode (LED) lights.

Simultaneously, the generating plate (48) of the ion generating part (40) is filled with negative ions and then discharges negative ions into air after saturation of negative ions.

In parallel with the above action, in the positive ion electrifier (B), a connective plug (74) is attached to an outlet (not shown) of the commercial power source and the neon lump (70) lights. Simultaneously, after actuation of the fan motor (58) makes the fan (58a) rotate, the ion screen or the ion filter (72) of the output screen (56) is filled with positive ions and electrifies them.

During actuation of the positive ion electrifier (B), a large amount and various kinds of invisible corpuscles like dust, smelly particles, smoke particles, virus, pathogen, microorganism, dead microorganism and excrement of microorganism floating in air within rooms are electrified negative electric charges with negative ions generated from the negative ion generators (Al) and (A2), and are forcely drawn into the cage box (62) from the air absorption opening (62b) by a circulation of an air stream within rooms. When many kinds of particles pass through the ion screen or the ion filter (72), they are absorbed. After passing through the ion screen or the ion filter (72), air includes few particles. Air which has become clean is discharged from an air outlet (62a) within rooms in order to be used again for the circulation therein as clean air.

In short, in our invention, negative ions are discharged within rooms as soon as the negative ion generators (Al) and (A2) are worked.

Dust and many kinds of particles are electrified negative electric charges with negative ions. The positively electrified ion screen or ion filter (72) is set on the way of an air circulation stream, which is created by the motor fan (58a), passing from the air absorption opening (62b) to the outlet (62a), and absorbs particles of dust, smell, etc. electrified with negative electrons. After passing through the ion screen or the ion filter (72), cleaned air is circulated in rooms.

As described above, apparatus of this invention can be carried freely anytime and anywhere so that when apparatus is used in a room, it is only carried to the room you want.

Accordingly it is not necessary to prepare apparatus in every room. Further apparatus of this invention reduces costs and is compact with the small occupation area. Still further, apparatus of this invention is easy to handle with and to maintain, and is superior in dura bility and safety.

Air in rooms which use this apparatus is always clean to have available rooms for resistless infants, children, patients and old people so that you can lead sanitary, healthy and cultural life.

Claims (11)

1. A method for cleaning air in rooms comprising setting negative ion generator means in rooms, discharging negative ions from said negative ion generator means into air within rooms, electrifying many kinds of particles such as dust, smelly particles, etc.

floating in air with negative ions, creating an air circulation stream forcely, absorbing said particles electrified negative electric charges with negative electrons by ion screen means or ion filter means electrified positive electric charges with positive electrons which is set on said air circulation stream, and circulating clean air passed through said ion screen means or said ion filter means within rooms.

2. Apparatus for cleaning air in rooms comprising a combination of a pair of; negative ion generator means having a fixed-fold voltage direct current power circuit including power source part means, a current flow display circuit, a booster rectification circuit and ion generating part means; and positive ion electrifier means having power source part means, a current flow display circuit, a booster rectification circuit, output screen means and fan motor means.

3. Apparatus as defined in claim 2, wherein, in negative ion generator means, the negative output terminal of a booster rectification circuit is connected through a resistor to ion generating part means for generating negative ions, said booster rectification circuit forming a feed-back circuit by connecting a condenser in a row to three or mode diodes in a series, said ion generating part means consisting of flexible and thin plate means coated with a conductor film, and said resistor having some high resisistance value.

4. Apparatus as defined in claim 2, wherein, in negative ion generator means, ion generating part means is connected through connector means to outside of box means housing a current flow display circuit and a booster rectification circuit and protruding outwardly joint plug means of the power source part means for the commercial power source.

5. Apparatus as defined in claim 2, wherein a booster rectification circuit has a oscillator circuit including a transistor and boosting voltage of power source part means of dry sells, a booster circuit of a transformer, and a rectification circuit including three or more arranged diodes in series coupled to the secondary coil of said transformer in a row, said condensers forming a feed-back circuit to said diodes.

6. Apparatus as defined in claim 2, wherein negative ion generator has box means housing power source part means, a current flow display circuit, a booster circuit and a rectification circuit, and being connected thereout to ion generating part means through some connector means.

7. Apparatus as defined in claim 2, wherein, in positive ion electrifier means, the positive output terminal of a booster rectification circuit is connected through a high valued resistor means to output screen means for electrifying positive electric charges with positive ions, said booster rectification circuit forming a feed-back circuit by connecting condensers in a row to given number of arranged diodes in series, and said output screen means being of conductive vinyl foam.

8. Apparatus as defined in claim 2, wherein fan motor means is connected in a row to a current flow display circuit in which a protective resistor is coupled to neon lump means in series, and faced to output screen means to make possible the passing-through of an air circulation stream created forcely thereby.

9. Apparatus as defined in claim 2, wherein positive ion electrifier means has cage box means including a fixed-fold voltage direct current power circuit, said cage box means having air discharge outlet in the front face thereof and permeably extending output screen means to cover non-botton air absorption opening thereof, said cage box means having fan motor means in the interior of the back surface thereof, and said output screen absorbing many kinds of particles ionized negatively in air by the actuation of said fan motor means and discharging clean air from said air discharge outlet means for air circulation within rooms.

10. A method of cleaning air in rooms, substantially as hereinbefore described with reference to the accompanying drawings.

11. Apparatus for cleaning air in rooms, substantially as hereinbefore described with reference to the accompanying drawings.