GB2512303A

GB2512303A - Car air purifier

Info

Publication number: GB2512303A
Application number: GB1305386.3A
Authority: GB
Inventors: Kun-Liang Hong
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-03-25
Filing date: 2013-03-25
Publication date: 2014-10-01
Anticipated expiration: 2033-03-25
Also published as: GB201305386D0; GB2512303B

Abstract

A car air purifier comprises a housing 2 defining an air inlet 210 and an air outlet 211, an air blower 6 mounted in said housing 2, a primary ion generator (4) and an ionic breeze device; wherein said blower 6 is adapted for causing currents of air to go in proper order through said air inlet 210, said primary ion generator (4), said ionic breeze device and said air outlet 211. Preferably the primary ion generator (4) comprises an insulative box (45), a first corona discharge needle-plate (42), a second corona discharge needle-plate (44) and a catalytic column (43). The catalytic column (43) may comprise a meshed or thin film-like metallic catalyst carrier coated with a layer of metal and/or oxide compound. Preferably the ionic breeze device is a secondary ion generator or an anion generator (5).

Description

CAR AIR PURIFIER

BACKGROUND OF THE INVENTION

1. Field of the Invention:

The present invention relates to air purification S technology and more particularly, to a car air purifier.

2. Description of the Related Art:

With continuous increasing of the number of cars and the demand of people for better car interior comforts, the task of clearing car internal air pollution and dust and keeping car internal air fresh has becoming more urgent. In the process of removing air pollution and dust, air purifier plays an important role. Conventional air purifiers are divided into filter type, anion type and plasma type.

An anion type air purifier uses an anion generator for purifying air. However, the discharged anions can be neutralized in air within a few seconds. In consequence, conventional anion type air purifiers can simply be used in a limited space. Further, conventional anion type air purifiers have poor performance in removing bad smells and purifying air.

To eliminate the aforesaid problems, China CN201964539U discloses an air purifier. According to this design, as shown in FIGS. 1-2, the air purifier A comprises a housing 11 defining air inlets 111 and air outlets 112, an ornamental plate 12, a lampshade 13, a pre-filter for removing large particles of dust 14, a HEPA (high efficiency particulate air filter) type filter screen 15, an activated carbon air filter 16, S an air blower 17, a mounting plate 18, an ultraviolet lamp 19, and an anion generator 110. The pre-filter for removing large particles of dust 14, 1-IEPA (high efficiency particulate air filter) type filter screen 15 and activated carbon air filter 16 of this design of air purifier achieves triple filtration. After filtration, the filtrated air is cleaned by the ultraviolet lamp 19 and the anion generator 110, and then delivered to the outside open air by the air blower 17. Thus, the air purifier can improve the quality of the air.

The air purifier of the aforesaid China CN201964539U eliminates the drawbacks of conventional anion type air purifiers that can simply be used in a limited space and have poor performance in removing bad smells and purifying air.

However, this design of air purifier still has drawbacks: 1. This design of air purifier is that: the pre-filter for removing large particles of dust 14, the HEPA (high efficiency particulate air filter) type filter screen 15 and the activated carbon air filter 16 carry active carbons, photocatalysts, atechin, zeolite powder or potassium permanganate to enhance bacteria-killing, odor-removing and organic solvent-decomposing capabilities. However, after a long use, the filters used in this design of air purifier can be clogged, S leading to rapid bacterial growth, and attached chemical substances can be saturated, oxidized or dropped off, becoming a contamination source.

2. The meshes in the filters of the air purifier will be gradually clogged and the function of the attached chemical substances will be lowered after a long use of the air purifier, thus, the filters of the air purifier are consumables and must be replaced periodically to avoid accumulation of bacteria and dust.

SUMMARY OF THE INVENTION

The present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide a car air purifier, which can be used in a large space, achieves high performance in killing bacteria and removing dust and bad smells, avoids air passage clogging, and has a prolonged lifespan.

To achieve this and other objects of the present invention, a car air purifier comprises a housing defining an air inlet and an air outlet, a primary ion generator and an ionic breeze device mounted in the housing, and an air blower mounted in the housing for causing currents of air to go in proper order through the air inlet, the primary ion generator, the S ionic breeze device and the air outlet.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. I is an oblique top elevational view of a car air

purifier according to the prior art.

FIG. 2 is a sectional view of the car air purifier

according to the prior art.

FIG. 3 is an exploded view of a car air purifier in accordance with the present invention.

FIG. 4 is a schematic sectional view of the car air purifier in accordance with the present invention.

FIG. 5 is an exploded view of the primary ion generator of the car air purifier in accordance with the present invention.

FIG. 6 is a schematic top elevational view of the primary ion generator of the car air purifier in accordance with the present invention.

FIG. 7 is a sectional view of the primary ion generator of the car air purifier in accordance with the present invention.

FIG. 8 is a sectional view of the first corona discharge needle-plate of the primary ion generator shown in FIG. 5.

FIG. 9 is an exploded view of the anion generator of the car air purifier in accordance with the present invention.

FIG. 10 is a sectional view of the anion generator of the S car air purifier in accordance with the present invention.

FIG. 11 is an oblique top elevational view of one anion generating unit of the anion generator shown in FIG. 9.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring to FIGS. 3-4, a car air purifier B in accordance with the present invention is shown. The car air purifier B comprises a housing 2, which comprises a holder shell 21 defining an air inlet 210 and an air outlet 211 and a cover shell 22 covering the holder shell 21, a support member 3 mounted in between the holder shell 21 and cover shell 22 of the housing 2 and defining a blast chamber 30, a first cell 31 in communication with the blast chamber 30, a second cell 32 located at one lateral side relative to the first cell 31 and the air outlet 211 and a flow-out port 33 in communication with the blast chamber 30 via the first cell 31, an air blower 6 mounted in the blast chamber 30, a primary ion generator 4 mounted in the first cell 31, a secondary ion generator or an ionic breeze device, for example, anion generator 5 mounted in the second cell 32, and two ventilation hoods respectively mounted at the air inlet 210 and the air outlet 211.

Referring to FIGS. 5-8, the primary ion generator 4 comprises an insulative box, which comprises a rectangular box S body 45 defining an air inlet 451, an air outlet 453 and an accommodation chamber 452 in communication between the air inlet 451 and the air outlet 453, and a seal cover 41 covering the rectangular box body 45, a first corona discharge needle-plate 42 and a second corona discharge needle-plate 44 mounted in between the rectangular box body 45 and seal cover 41 of the insulative box and arranged opposite to each other, and a catalytic column 43 mounted in the insulative box between the first corona discharge needle-plate 42 and the second corona discharge needle-plate 44 and defining a top air intake port 431 and a bottom air input port (not shown) at opposing top and bottom sides thereof. Further, the first corona discharge needle-plate 42 comprises a planar electric discharge needle substrate 421 and a plurality of electric discharge needles 422 perpendicularly arranged in an array at one side of the planar electric discharge needle substrate 421. The composition of the second corona discharge needle-plate 44 is substantially similar to the first corona discharge needle-plate 42. Further, the catalytic column 43 has a meshed or thin film-like metallic catalyst carrier arranged therein. This metallic catalyst carrier is coated with a layer of metal and/or oxide compound coatings.

The metal coating can be selected from the group of iron, cobalt, nickd, gold, silver, p'atinum, manganese, tin, zinc, chromium, and their combinations. The oxide compound coating can be selected from the group of iron oxide, ahirninurn oxide, sflicon oxide, copper oxide, chromium oxide, nickel oxide, titanium oxide, and their combinations.

During application, a positive or negative voltage is applied to the first corona discharge needle-plate 42, and the second corona discharge needle-plate 44 is grounded or suspending in the insulative box of the primary ion generator 4.

At this time, electrons are conducted to the catalytic column 43 via the electric discharge needles 422. Because the catalytic column 43 is an excellent electrical conductor, it can gather a strong discharge energy to decompose organic gases or bacteria that flow through the cat&ytic coRtmn 43.

Referring to FIGS. 9-11, the anion generator S comprises an insulative box, which comprises a bevel-shaped box body 51 defining therein an accommodation chamber 510 and a cover shell 53 covering one half of the open side of the

S

accommodation chamber 510 of the bevel-shaped box body 51, and a plurality of anion generating units 52 arranged in a line in between the bevel-shaped box body 51 and cover shell 53 of the insulative box. Each anion generating unit 52 comprises a S plastic insulating tube 522, two conducting rings 521 respectively located at the two opposite ends of the plastic insulating tube 522, a discharge needle 520 axially mounted in the axial center of the plastic insulating tube 522 and defining opposing power input end 5201 and discharging tip 5200, and a lead wire 523 arranged in a wire groove on the periphery of the plastic insulating tube 522 and electrically connected between the two conducting rings 521. It is to be noted that, except the design of arranging the anion generating units 52 in a line, the anion generating units 52 can also be arranged in a rectangular or circular array. Further, the plastic insulating tubes 522 of the anion generating units 52 are made out of an insulative plastic material and a photocatalyst material. The photocatalyst material can be made containing O.i%--20% quality percentage of titanium dioxide and O.Ul%-U.5% quality percentage of the fourth-row main-group elements. Alternatively, the photocatalyst material can also be made containing 0.l%-20% quality percentage of vanadium dioxide and O.O1%-0.5% quality percentage of the fourth-row main-group elements.

During application, the power input end 5201 of the discharge needle 520 is electrically connected to the negative pole of a high voltage. At this time, the conducting rings 521 are S polarized by the discharge needle 520, inducing an electric field between the discharge needle 520 and the conducting rings 521.

Since water molecules, nitrogen and oxygen exist in the air, the discharging tip 5200 can discharge a high voltage to produce an anion radical group, which, under the effects of an electrostatic force, forms an ionic wind that flows toward the conducting rings 521 to attract dust or to cause protein denature of bacteria and thus kill the bacteria. Further, the clean air being discharged out of the anion generator 5 carries a large amount of negative ions, enhancing the freshness of the air and causing users to produce feelings of pleasure.

Referring to FIG. 3. the application of the car air purifier B is outlined hereinafter. When the car air purifier B is electrically conducted, the air blower 6 is driven to rotate the blades thereof at a high speed, causing a negative pressure in the blast chamber 30. External currents of air go properly through the air inlet 210, the blast chamber 30, the primary ion generator 4, the anion generator 5 and the air outlet 211. When the intake flow of air is flowing through the primary ion generator 4 and the anion generator 5, ionic air purification and anionic air purification processes are performed.

Although the working principles of the ionic air S purification and anionic air purification processes performed by the primary ion generator 4 and the anion generator 5 are different from that of the pre-filter for removing large particles of dust 14, HEPA type filter screen 15 and activated carbon air filter 16 of the prior art car air purifier, they are effective in killing bacteria, removing bad smells, decomposing TVOC (total volatile organic compounds), or collecting dust. Because the primary ion generator 4 and the anion generator S have a reasonable structure and use improved metallic catalyst and photocatalyst materials, the car air purifier B of the present invention achieves optical dust extraction and bactericidal effects.

Further, the car air purifier can be made in a vertical form, wall mount form, or car roof mount form.

Although a particular embodiment of the invention has been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.

Claims

What the invention claimed is: 1. A car air purifier of the type comprising a housing defining an air inlet and an air outlet and an air blower mounted in said housing, the improvement comprising a primary S ion generator and an ionic breeze device, wherein said air blower is adapted for causing currents of air to go in proper order through said air inlet, said primary ion generator, said ionic breeze device and said air outlet.
2. The car air purifier as claimed in claim I, wherein said housing comprises a holder shell, a cover shell covering said holder shell, and a support member mounted in between said holder shell and said cover shell to accommodate said primary ion generator and said ionic breeze device therein; said air inlet and said air outlet are respectively located two opposite sides of said holder shell.
3. The car air purifier as claimed in claim 1, wherein said ionic breeze device is a secondary ion generator or an anion generator.
4. The car air purifier as claimed in claim 2, wherein said support member comprises a first cell and a second cell adapted to accommodate said primary ion generator and said ionic breeze device respectively.
5. The car air purifier as claimed in claim 4, wherein said support member further comprises a blast chamber disposed in communication with said first cell and adapted to accommodate said air blower; said second cell is disposed at S one ateral side relative to said first celL
6. The car air purifier as claimed in claim 5, wherein said support member further comprises a flow-out port; said air inlet, said blast chamber, said first cell, said flow-out port and said air ouflet are disposed in air communication with one another in such a manner that said air blower enaWes currents of air to go in proper order through said air inlet, said blast chamber, said first cell, said flow-out port and said air outlet.
7. The car air purifier as claimed in claim 1, further comprising two ventilation hoods respectively mounted at said housing around said outlet and said air inlet.
8. The car air purifier as claimed in claim 1, wherein said primary ion generator comprises an insulative box, a first corona discharge needJe-pate and a second corona discharge needle-plate mounted in said insulative box and facing toward each other, and a catalytic column mounted in said insulative box between said first corona discharge needle-plate and said second corona discharge needle-plate.
9. The car air purifier as claimed in claim 8, wherein said catalytic column is a hollow rectangular member; said first corona discharge needle-plate and said second corona discharge needle-plate each comprise a discharging side and a S plurality of electric discharge needles arranged on said discharging side.
10. The car air purifier as claimed in claim 8, wherein said catalytic column comprises a meshed or thin film-like metallic catalyst carrier arranged therein, said metallic catalyst carrier being coated with a layer of metal coating and/or oxide compound coating.
11. The car air purifier as claimed in claim 10, wherein said metal coating is selected from the group of iron, cobalt, nickel, gold, silver, platinum, manganese, tin, zinc, chromium, and their combinations; said oxide compound coating is selected from the group of iron oxide, aluminum oxide, silicon oxide, copper oxide, chromium oxide, nickel oxide, titanium oxide, and their combinations.
12. The car air purifier as claimed in claim 3, wherein said anion generator comprises an insulative box and a plurality of anion generating units arranged in said insulative box, each said anion generating unit comprises a plastic insulating tube, said plastic insulating tube comprising a wire groove longitudinally located at the periphery thereof, two conducting rings respectively mounted at opposing top and bottom ends of said plastic insulating tube, a discharge needle S axially mounted in the axial center of said plastic insulating tube, and a lead wire arranged in said wire groove of said plastic insulating tube and electrically connected between said two conducting rings.
13. The car air purifier as claimed in claim 12, wherein said anion generating units are selectively arranged in a line, a rectangular array, or a circular array.