GB2415879A - Photo-electric air purifier system with carbon fiber ionising electrode - Google Patents

Photo-electric air purifier system with carbon fiber ionising electrode Download PDF

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Publication number
GB2415879A
GB2415879A GB0513184A GB0513184A GB2415879A GB 2415879 A GB2415879 A GB 2415879A GB 0513184 A GB0513184 A GB 0513184A GB 0513184 A GB0513184 A GB 0513184A GB 2415879 A GB2415879 A GB 2415879A
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GB
United Kingdom
Prior art keywords
air purifier
air
tube
purifier according
duct
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB0513184A
Other versions
GB0513184D0 (en
GB2415879B (en
Inventor
John Se-Kit Yuen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
John Manufacturing Ltd
Original Assignee
John Manufacturing Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by John Manufacturing Ltd filed Critical John Manufacturing Ltd
Publication of GB0513184D0 publication Critical patent/GB0513184D0/en
Publication of GB2415879A publication Critical patent/GB2415879A/en
Application granted granted Critical
Publication of GB2415879B publication Critical patent/GB2415879B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/30—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by ionisation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/18—Radiation
    • A61L9/20—Ultraviolet radiation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/22—Ionisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
    • B03C3/016—Pretreatment of the gases prior to electrostatic precipitation by acoustic or electromagnetic energy, e.g. ultraviolet light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/32—Transportable units, e.g. for cleaning room air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/80—Self-contained air purifiers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T23/00—Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/30—Details of magnetic or electrostatic separation for use in or with vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Electrostatic Separation (AREA)

Abstract

A photo-electronic air purifier comprises a housing (1,2) containing a fan (9), a dust filter (6), an ultraviolet tube (19) in a duct (17), and a negative high voltage carbonized fiber (8). The UV light is at a wavelength of 253.7 nm and the ionising electrode operates between 4.5 and 8.5 KV.

Description

24 1 5879 PHOTO-F,LECTRONIC AIR PURIFIER This invention relates to a
photo-electronic air purifier which may be powered by a vehicle's power point or by the regular mains supply of alternating current (AC).
The purpose of this invention is to present a new design of air purifier.
According to an aspect of the present invention, there is provided a photo electronic air purifier comprising a housing containing a fan, a dust filter, an ultraviolet tube in a duct, and a negative high voltage carbonized fiber.
The air purifier employs ultraviolet (UV) to eliminate bacteria, virus and mildew in the air while emitting negative ions into the environment.
1() A preferred embodiment of the air purifier comprises a fan, a UV emission tube, and a negative high voltage electrical carbonized fiber. When the air is drawn into the air purifier by the fan, it can undergo two different processes. The first process is to apply negative high voltage to the carbonized fiber to discharge electricity, thus creating negative ions in the air which leaves the air purifier. The second process uses UV to kill bacteria, virus and mildew. There is a one incoming air vent and one outgoing air vent. The high voltage carbonized fiber is fixed inside the outgoing air vent, while the UV emission tube is located downstream of the incoming air vent. The fan is positioned inside the air purifier, taking in regular air with bacteria, virus, and mildew to be treated by the purifier. It drives the moving air through the air purifier, forcing the air with bacteria, virus and mildew to contact the UV tube, so that UV can kill the bacteria, virus and mildew first, and then it pushes the air through the purification process of negative ionization and finally discharges fresh air with negative ions to improve the indoor air quality.
The purifier's outline is generally cylindrical.
A preferred non-limitng embodiment of the present invention will now be described with rcherence to the accompanying diagrammatic drawings, m which: FIG. 1 Is a side view of an air purifier in accordance with a preferred embodiment of the present invention.
FIG. 2 is a vertical section of the air purifier.
FIG. 3 Is a horizontal section of the air purifier.
FIG. 4 is a front view of the air purifier.
FIG. 5 is a top view of the air purifier.
FIG. 6 is a bottom view of the air purifier.
FIG. 7 Is a top perspective view of the air purifier.
FIG. 8 is a bottom perspective view of the air purifier.
FIG. 9 is an exploded perspective view of the air purifier.
The air purifier has a generally cylinder shaped housing or body with separate front (1) and back (2) portions. A generally trumpet shaped air diffuser (3) is fixed to the front of the purfier's outgoing air vent (4) at the top of the purifier. The air diffuser (3) is also the outlet for the Ionized air.
'I'he structure of the air purifier is illustrated in detail in FIGS. 2 and 9. An incoming air grille (5) is located around the base (25) of the product. The incoming air guile (5) leads to a dust filtration body (6) and a dust filtration screen (7). Behind the outgoing air vent (4) is a fan (9). A carbonized fiber (8) is located underneath the fan (9) and uses a negative high voltage to ionize the air.
A duct (17) has a tubular central section (18) and flared Inlet and outlet ends (24). An cxtremc-UV hght tube (19) is generally coaxial with the central section of the duct (17) and is located in electrical end fittings (23) which receive power via electrical contacts (27). The end fittings (23), the electrical contacts (27) and a longitudinal connecting portion of the central section of the duct form a removable module which may be removed through a slot in the back portion (2) of the main housing. The module includes an outer panel (28) which conforms generally to the shape of the housing wall when the module is in position, although the housing wall is locally recessed on each side of a central part of the outer panel (28) to enable the outer panel to be gripped by a user's hand.
The module may be removed to enable cleaning or replacement of the extreme UV light tube (19). As the module is removed, its electrical contacts (27) break away from stationary power-supplying contacts (26) of the housing to turn off the light tube (19) as a safety feature. During rcinserton of the module, the process is reversed and the light tube (19) can receive power again.
A generally trumpet shaped handle (10) is located inside the air diffuser (3) at the top of the device, providing convenience for a user to carry the appliance around.
The base (25) of the housing is generally bell shaped so as to have a wide bottom surface for stability when the device is standing upright on any surface, such as a table, and may incorporate e.g. four shockproof feet for supporting the air purifier when it is standing on a surface.
The purifier is powered via a power inlet point (31) received in a hole (30) in the housing. The power is supplied to a circuit board (32) which includes the electronic components necessary for the operation of the purifier, such as a high voltage negative ion generating circuit for supplying a high negative voltage to the carbonized fiber (8), a full wave rectifier circuit and a speed control circuit for the fan (9). There is also a timer circuit. The front face of the front portion (1) of the housing has an on/off switch (12), atimer control switch (13) and a mode selection switch (14).
There are also l E Ds (15,16) for each switch for visually indicating the operational status of the various switchable functions. The LE Ds have different colours for this purpose.
In use, when operating the air purifier, the fan (9) draw air with bacteria, virus and mildew through the dust filtration screen (7) and then into the air duct (17). The inner surface (20) of the central section (18) of the air duct (17) has spiral rib(s) which twist the air movhlg along the air duct (17) to the air diffuser (3). This increases the dwell time of the air adjacent to the UV tube (19) which is located at the center of the air duct (17). The air containing bacteria, virus and mildew travels along an annular space between the UV tube (19) and the inner surface (20) and the bacteria, virus and mildew are killed by UV emitted from the UV tube (19). The fan (9) draws the purified air past the negative high voltage carbonized fiber (8) to be ionized. Then the ionized fresh air is discharged through the outgoing air vent (4) and the diffuser (3) to improve the indoor air quality.
The tapered ends (24) of the duct (17) enable the central section (18) to be of reduced diameter so that the air is close to the UV tube (19) for intense UV treatment.
The configuration also provides an annular chamber between the central section (18) of the duct (17) and the surrounding wall of the housing (1, 2) which contains the circuit board (32).
The air flow through the air purifier involves the air entering the base laterally, through the incoming air grille (5), and then turning to pass axially along the central section (18) of the duct (17) and then being deflected laterally by the trumpet shaped air diffuser (3) as it leaves the air purifier. Thus the bottom wall of the base (25) of the housing and the air diffuser (3) act as shields to prevent the user's eyes from being damaged by axially viewing the UV tube (19).
These are different paths for the input power when it enters into the appliance.
One passes through on/off switch (12) to the negative ion generating circuit. Another goes through the rectifier circuit providing power to the fan (9), and the circuitry that converts from DC to AC, for activating the circuitry for the UV tube (19). Another one provides power to the negative ion generating circuit and UV tube's (19) automatic control circuitry, in charge of the operation of the negative ion generating circuit and the UV tube (19).
After the on/off switch (12) is turned on, the user can choose a long or a short time setting for the operation of the air purifier. The user can use the timer control switch (13) to shut off the electricity at a desired time in advance. The user can use the mode selection switch (14) to select the operational mode: sterilizer; ionizer; sterilizer and ionizer simultaneously; sterilizer and ionizer alternately.
The negative ions promote the biochemical process in the human body. When inhaling an increased quantity of negative ions, it lowers the hormonal secretion to combat depression and fatigue.
The air purifier uses a UV tube to generate UV with a wavelength of 253.7 nanometers, which is able to kill bacteria, virus and mildew in the air. In this modern society, air conditioning is essential for families, hospitals, senior citizen centers, shopping malls, theaters, restaurants, office buildings, automobile manufacturers, elevators, cars, ships, airplanes and trains. The air purifier improves the environments of our Eves, habitations, medical treatments, work conditions, shopping and transportations etc. and provides us with clean spaces in this constant nature demolishing modern society.

Claims (11)

1. A photo-electronic air purifier comprising a housing containing a fan, a dust filter, an ultraviolet tube in a duct, and a negative high voltage carbonized fiber.
2. The air purifier according to claim 1, further comprising a negative ion generating circuit, and an activation circuit for the UV tube for producing a W wavelength of 253.7 nanometers.
3. The air purifier of claim 2, wherein the output value of the negative high voltage is from 4,500 to 8,500 volt.
4. The air purifier of claim 2 or 3, wherein the negative ion generating circuit has an adjustable impedance for adjusting the negative high voltage output value.
5. The air purifier according to any one of claims 2 to 4, wherein the activation circuit has an adjustable impedance for adjusting the output current value for the UV tube.
6. The air purifier according to any preceding claim, wherein the UV tube is 2() shielded laterally by the wall of the duct and the wall of the housing and is shielded axially by structures at the ends of the duct which deflect laterally incoming air flow axially into the duet and laterally deflect axially outgoing airflow from the duet.
7. The air purifier according to any preeedmg claim, wherein the UV tube can be cleaned and replaced as needed.
8. The air purifier according to any preceding claim, wherein the dust filter can be cleaned and replaced as needed.
9. The air purifier according to any preceding claim, wherein the housing is generally cylinder shaped.
10. The air purifier according to any preceding claim, further comprising an electrical circuit board, an on/off switch, an indicator light, and a power input point.
11. A photo-electronic air purifier substantially as herein described with reference to, or with reference to and as illustrated in, the accompanying drawings.
GB0513184A 2004-06-28 2005-06-28 Photo-electronic air-purifier Expired - Fee Related GB2415879B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2004100497699A CN100545524C (en) 2004-06-28 2004-06-28 The cylindrical nanometer photoelectronic air purifier

Publications (3)

Publication Number Publication Date
GB0513184D0 GB0513184D0 (en) 2005-08-03
GB2415879A true GB2415879A (en) 2006-01-04
GB2415879B GB2415879B (en) 2008-10-22

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Family Applications (2)

Application Number Title Priority Date Filing Date
GB0512546A Expired - Fee Related GB2415627B (en) 2004-06-28 2005-06-20 An electro-optical air purifier
GB0513184A Expired - Fee Related GB2415879B (en) 2004-06-28 2005-06-28 Photo-electronic air-purifier

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0512546A Expired - Fee Related GB2415627B (en) 2004-06-28 2005-06-20 An electro-optical air purifier

Country Status (3)

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JP (1) JP2006006923A (en)
CN (1) CN100545524C (en)
GB (2) GB2415627B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3406977B1 (en) 2017-05-26 2020-12-16 Brunauer, Thomas Sebastian Room air purifier
US20220205657A1 (en) * 2020-12-28 2022-06-30 Kenneth Perlin Method and Apparatus for Producing a Clean Air Curtain

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RU2445122C1 (en) * 2011-03-01 2012-03-20 Общество С Ограниченной Ответственностью "Литтранссервис" Air disinfection device for underground railway carriages
CN104266284B (en) * 2014-09-11 2017-06-06 青岛海尔空调器有限总公司 Desktop air-conditioning
CN104266266B (en) * 2014-09-11 2017-04-19 青岛海尔空调器有限总公司 Table top air conditioner and mounting method thereof
CN106288003A (en) * 2016-08-02 2017-01-04 王彦宸 Air purifier and air purification method
IT202000023785A1 (en) * 2020-10-26 2022-04-26 Gianfranco Danti IMPROVED STRUCTURE OF GAS DEBACTERIAL

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GB2301179A (en) * 1995-05-19 1996-11-27 John Mfg Ltd Air purifier
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3406977B1 (en) 2017-05-26 2020-12-16 Brunauer, Thomas Sebastian Room air purifier
US20220205657A1 (en) * 2020-12-28 2022-06-30 Kenneth Perlin Method and Apparatus for Producing a Clean Air Curtain
US12050026B2 (en) * 2020-12-28 2024-07-30 Kenneth Perlin Method and apparatus for producing a clean air curtain

Also Published As

Publication number Publication date
CN1715794A (en) 2006-01-04
GB0512546D0 (en) 2005-07-27
GB0513184D0 (en) 2005-08-03
JP2006006923A (en) 2006-01-12
GB2415627B (en) 2007-09-26
GB2415879B (en) 2008-10-22
GB2415627A (en) 2006-01-04
CN100545524C (en) 2009-09-30

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Legal Events

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COOA Change in applicant's name or ownership of the application

Owner name: JOHN MANUFACTURING LIMITED

Free format text: FORMER APPLICANT(S): YUEN, JOHN S

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20100628