US3889157A - Arrangement for the generation of unipolar air ions - Google Patents

Arrangement for the generation of unipolar air ions Download PDF

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Publication number
US3889157A
US3889157A US420171A US42017173A US3889157A US 3889157 A US3889157 A US 3889157A US 420171 A US420171 A US 420171A US 42017173 A US42017173 A US 42017173A US 3889157 A US3889157 A US 3889157A
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United States
Prior art keywords
glass wall
arrangement defined
glow lamp
electrodes
glow
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Expired - Lifetime
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US420171A
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English (en)
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Berckheim Constantin Graf Von
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    • 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
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00—Other air-treating devices
    • B60H3/0071—Electrically conditioning the air, e.g. by ionizing
    • 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

Definitions

  • the arrangement includes a gas discharge lamp, preferably a glow lamp, comprised of a glass wall defining an enclosed space and at least one electrode located in the enclosed space and spaced from at least a predetermined portion of the glass wall by a distance less than 10 millimeters.
  • a conductor having a tip portion located exteriorly of said glass wall but proximal to said predetermined portion of said glass wall is connected to a DC. potential.
  • the electric field established at the tip portion of the conductor interacts with the ultraviolet radiation produced by the gas discharge lamp to produce unipolarair ions.
  • the invention relates to an arrangement for the generation of unipolar air ions, especially for the electric climate control of interier spaces, of the type in which the radiation of a gas discharge lamp and the steady electric field of a wire tip cooperate with each other.
  • German Pat. No. 1,679,491 discloses a gas discharge tube on whose glass body fine wire-like spikes are lightly and resiliently supported.
  • the gas discharge tube can be a conventional fluorescent tube operated with a conventional tube driving voltage, particularly an A.C. voltage.
  • a large number of these wires are mounted on a rod-shaped carrier connected to a high-voltage DC. voltage source.
  • the ultraviolet radiation produced by the gas discharge produces such an excitation in the vicinity of the wire tips as to result in the production of ions under the influence of the electrical field, without the undesired generation of ozone and nitrogen oxide.
  • This object can be solved according to the invention by employing for the gas discharge lamp a glow lamp having at least one electrode the cathode of the lamp is driven by a DC. voltagespaced from the glass wall by a distance less than mm, preferably less than 7 mm, with a wire tip of the type mentioned above positioned in this region.
  • Glow lamps having these dimensions are very small gas discharge lamps. Correspondingly small is the number of wire tips which can be associated with such a small lamp. Also, glow lamps in general have a relatively small ultraviolet radiation output. However, if the wire tip is positioned relatively close to the electrode (e.g., the cathode in a DC. operated glow lamp) and thereby in the glow discharge region, the actually rather weak ultraviolet radiation in the region of the wire tip will be so effective that even when only one wire tip is employed ions will be produced in a quantity corresponding to that produced with a gas discharge tube provided with many wire tips.
  • the electrode e.g., the cathode in a DC. operated glow lamp
  • the region in which the wire tip can be arranged can be increased in size, despite the small size of the glow lamp, if the glow lamp has a glass wall in the form of a thin pipe with surface electrodes extending parallel to the pipe-shaped glass wall.
  • the glow lamp has at its front side an approximately hemispherical closed glass wall and at least two surface electrodes extending substantially parallel to such front wall.
  • the tolerances for the position of the wire tip can be relatively large, which greatly simplifies assembly, and which furthermore makes the structure suitable for rugged uses, such as in an automotive vehicle, in which the position of the wire tip may change during operation of the arrangement.
  • a glow lamp having an average power density in its gas space of at least 0.1 W/cm, preferably more than 0.5 W/cm.
  • Such power densities can be achieved relatively easily with very small glow lamps.
  • the gas spaces of the lamps can advantageously be smaller than 3 cm preferably smaller than 1 cm
  • FIG. 1 is a schematic depiction of the embodiment of the invention
  • FIG. 2 is a schematic sectional view through a second embodiment of the invention.
  • FIG. 3 is a sectional view, taken on line CC of FIG. 2.
  • reference numeral 1 designates in general a glow lamp of small dimensions.
  • the lamp 1 projects through an opening 2 in a cover plate 3 and has a threaded base portion screwed into a threaded lamp holder 5.
  • a series resistor 6, shown in broken lines, is contained in the base portion of the lamp 1.
  • a first electrode 7 is connected, via series resistor 6, to connection terminal 8.
  • the second electrode 9 is electrically connected to the peripheral portion of the metallic base portion of the lamp 1.
  • a glass wall 12 ofa material through which ultraviolet radiation can readily pass surrounds the gas space 12 of the lamp and has a hemispherical front wall 13.
  • This glow lamp is driven in conventional manner by an AC. voltage source 14, which is grounded at 15.
  • a wire 16 having a fine end tip 17 is held in a support 18 in such a manner that it rests upon the front wall 13.
  • the support 18 is held on the cover plate 3 by the intermediary of an insulator body 19.
  • the wire 16 is connected, via a protective resistor 20, to the nongrounded terminal of a highvoltage DC. voltage source 21.
  • the electrode 7 is a spherical section, and is all across its spherical surface portion substantially equidistantly spaced from the hemispherical front wall 13. This distance, designated a in FIG. 1, should according to the invention be less than 10 mm, and preferably less than 7 mm. As a result of this, if only electrode 7 is considered (i.e., if it serves as the cathode for a DC.- driven lamp), there is created a region of the glass wall 11 above the line AA characterized by the aforementioned condition.
  • the electrode 9 is a ring whose peripheral surface is either inclined or concave.
  • the aforementioned condition will prevail in the region of the glass wall 11 above the line BB.
  • the wire 16 can easily be arranged in such a manner that the wire tip 17 is located near this region of the glass wall.
  • test data being as follows:
  • the glow lamp 22 has a pipe-shaped glass wall 23 closed off at both ends by contact plates 24 and 25.
  • the contact plate 24 carries an electrode 26; the contact plate carries an electrode 27.
  • Each of these electrodes 26, 27 has a cross-sectional profile corresponding to the arc of a circle, as seen particularly clearly in FIG. 3.
  • the surfaces of the electrodes 26, 27 are spaced from the near surface of glass wall 23 by a constant radial distance.
  • a springy contact 28 presses the glow lamp 22 against a stationary contact 29 provided with a quadratic recess 30 which accommodates the contact plate 24.
  • a carrier member 31 (FIG. 3) for a wire 32 having a fine tip 33 positioned alongside the glow lamp 22.
  • the outer diameter of the pipe-shaped glass wall 23 is 6 mm.
  • the small radial distance between the electrodes 26, 27 and the glass wall 23 is less than 1 mm, and the largest distance less than 5 mm.
  • the wire tip 33 can be positioned at any arbitrarily selected position over a very substantial portion of the surface of the glass wall 233. In the case of an A.C.-driven lamp the wire tip 33 can be positioned almost anywhere along the whole length of the lamp, and such tolerance range will not result in an impermissible reduction in the ion output.
  • FIGS. 2 and 3 The structure shown in FIGS. 2 and 3 was built and tested, the test data being as follows:
  • An arrangement for the production of unipolar air ions, particularly for the electrical climate control of habitable enclosed spaces comprising, in combination, a glow lamp comprised of a glass wall defining an enclosed space containing two spaced electrodes, at least one of said electrodes being spaced from a predetermined portion of said glass wall by a distance less than 10 millimeters; means connected across said electrodes and operative for establishing thereacross a potential difference producing a glow discharge in the immediate vicinity of at least said one of said electrodes; and means operative for establishing a DC.
  • an electrical conductor having a tip portion located outside the enclosed space defined by said glass wall but in the immediate vicinity of said predetermined portion of said glass wall, so as to be located close to said glow discharge, and means for maintaining said tip of said electrical conductor at a high D.C. potential.
  • said glass wall has the form of a glass tube, and wherein said one of said electrodes is an elongated electrode extending parallel to said glass tube.
  • said glass wall is comprised of a hemispherical portion, and wherein said one of said electrodes has a portion so configurated and oriented relative to said portion of said wall as to be spaced from the latter by a substantially constant radial distance.
  • said glass wall defines an interior gas space having a volume less than 3 cm 9.
  • said glass wall defines an interior gas space having a volume less than 1 cm 10.
  • said means for establishing a DC. electric field comprises only one such conductor having a single tip portion located proximal to said predetermined portion of said glass wall.
  • said glow lamp includes a series resistor which carries the glow lamp current and is so positioned with respect to said glass wall as to maintain the surface of said glass wall at a temperature at least 10C higher than ambient temperature.
  • said glow lamp includes a series resistor which carries the glow lamp current and is so positioned with respect to said glass wall as to maintain the surface of said glass wall at a temperature between 15 and 30C higher than ambient temperature.

Landscapes

  • Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Discharge Lamp (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Electrostatic Separation (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
US420171A 1972-12-11 1973-11-29 Arrangement for the generation of unipolar air ions Expired - Lifetime US3889157A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2260521A DE2260521B1 (de) 1972-12-11 1972-12-11 Vorrichtung zur Erzeugung von unipolaren Luftionen

Publications (1)

Publication Number Publication Date
US3889157A true US3889157A (en) 1975-06-10

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ID=5864069

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US420171A Expired - Lifetime US3889157A (en) 1972-12-11 1973-11-29 Arrangement for the generation of unipolar air ions

Country Status (20)

Country Link
US (1) US3889157A (it)
JP (1) JPS4988171A (it)
AR (1) AR196945A1 (it)
AT (1) AT324628B (it)
BE (1) BE805674A (it)
BR (1) BR7309199D0 (it)
CA (1) CA996688A (it)
CH (1) CH557006A (it)
DE (1) DE2260521B1 (it)
ES (1) ES196443Y (it)
FR (1) FR2210030B1 (it)
GB (1) GB1388702A (it)
IL (1) IL43409A (it)
IN (1) IN139598B (it)
IT (1) IT994479B (it)
NL (1) NL7316171A (it)
NO (1) NO134922C (it)
SE (1) SE390059B (it)
TR (1) TR17852A (it)
ZA (1) ZA738342B (it)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4109290A (en) * 1977-04-18 1978-08-22 Apsee, Incorporated Means for generating a negative charge
US5241449A (en) * 1992-01-21 1993-08-31 Moeller Dade W Radon decay product removal unit as adpated for use with a lamp
US10099226B2 (en) * 2015-07-20 2018-10-16 Hilgenberg GmbH Ionization device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2509767C3 (de) * 1975-03-06 1978-02-09 Berckheim, Constantin Graf Von, 6940 Weinheim Vorrichtung zur Ionisierung der Luft in geschlossenen Räumen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3047718A (en) * 1959-11-24 1962-07-31 Gen Electric Negative ion generator
US3072978A (en) * 1959-03-17 1963-01-15 Modern Aids Inc Air purifier
US3128378A (en) * 1960-10-04 1964-04-07 Dynamics Corp America Negative ion generator using an ultraviolet source to irradiate electrically conductive material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3072978A (en) * 1959-03-17 1963-01-15 Modern Aids Inc Air purifier
US3047718A (en) * 1959-11-24 1962-07-31 Gen Electric Negative ion generator
US3128378A (en) * 1960-10-04 1964-04-07 Dynamics Corp America Negative ion generator using an ultraviolet source to irradiate electrically conductive material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4109290A (en) * 1977-04-18 1978-08-22 Apsee, Incorporated Means for generating a negative charge
US5241449A (en) * 1992-01-21 1993-08-31 Moeller Dade W Radon decay product removal unit as adpated for use with a lamp
US10099226B2 (en) * 2015-07-20 2018-10-16 Hilgenberg GmbH Ionization device

Also Published As

Publication number Publication date
JPS4988171A (it) 1974-08-23
ZA738342B (en) 1974-10-30
DE2260521C2 (it) 1975-04-03
ES196443Y (es) 1975-07-16
NL7316171A (it) 1974-06-13
AU6209973A (en) 1975-05-01
SE390059B (sv) 1976-11-29
AT324628B (de) 1975-09-10
AR196945A1 (es) 1974-02-28
NO134922B (it) 1976-09-27
IN139598B (it) 1976-07-03
CH557006A (de) 1974-12-13
NO134922C (it) 1977-01-05
FR2210030A1 (it) 1974-07-05
IL43409A0 (en) 1974-01-14
TR17852A (tr) 1976-05-12
BR7309199D0 (pt) 1974-09-10
CA996688A (en) 1976-09-07
ES196443U (es) 1975-03-01
BE805674A (fr) 1974-02-01
IT994479B (it) 1975-10-20
IL43409A (en) 1977-04-29
FR2210030B1 (it) 1976-10-08
DE2260521B1 (de) 1974-06-12
GB1388702A (en) 1975-03-26

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