CN204730343U - Air purifier - Google Patents

Air purifier Download PDF

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Publication number
CN204730343U
CN204730343U CN201520065684.3U CN201520065684U CN204730343U CN 204730343 U CN204730343 U CN 204730343U CN 201520065684 U CN201520065684 U CN 201520065684U CN 204730343 U CN204730343 U CN 204730343U
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CN
China
Prior art keywords
air
shell
inner shell
air purifier
filter
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Application number
CN201520065684.3U
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Chinese (zh)
Inventor
高益焕
金钟洛
卞相晥
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Seoul Viosys Co Ltd
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Seoul Viosys Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0028—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions provided with antibacterial or antifungal means
    • 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
    • A61L9/205—Ultraviolet radiation using a photocatalyst or photosensitiser
    • 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
    • B60H3/06—Filtering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/80—Type of catalytic reaction
    • B01D2255/802—Photocatalytic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/804—UV light
    • 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
    • B60H3/06—Filtering
    • B60H2003/0675—Photocatalytic filters

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

Disclose a kind of air purifier, described air purifier comprises: upper shell; Lower house, the diameter of lower house is less than the diameter of described upper shell, and is arranged on the bottom of described upper shell; And inner shell, be fixed in described upper shell and lower house, make inner shell and described upper shell and lower house spaced apart; Wherein, the side on the top of described lower house has air-inlet grille, air is inhaled into described lower house by air-inlet grille, the bottom of described inner shell has air intlet, air circulation is crossed air intlet and is entered inner shell, and the top of inner shell has discharge portion, and air is discharged by discharge portion.Described air purifier compact conformation, makes it can be assemblied in the glass stand of automobile, may be used for deodorizing, dust is collected and sterilization, and be convenient to maintenance and repair.

Description

Air purifier
Technical field
The utility model relates to a kind of air purifier, and more particularly, relate to a kind of such air purifier: it so compact it can be arranged in the glass stand of vehicle, can deodorizing effectively, collect dust and sterilization, and allow to change filter in a simple manner decoupled.
Background technology
Titanium dioxide (TiO 2) in its substrate covered, there is high tack, and when light activated light (mainly ultraviolet light) can be caused to be applied on it, show photocatalytic activity.
Especially, therefore the light-catalyzed reaction of titanium dioxide for such as antibacterial effective with deodorizing aspect, and is frequently used in purification of air.Such as, a kind of method purified air, wherein, when air is by photocatalytic filter, adopts UV light irradiation TiO 2photocatalytic filter (the TiO covered 2ceramic foam filter) cause light-catalyzed reaction, this is a kind of air purification method be widely used in recent years.
Titanium dioxide is not used alone, but usually uses to cover suprabasil state.Therefore, the shape covering the photochemical catalyst of titanium dioxide is determined according to the shape of substrate usually.
The deodorizing of titanium dioxide is adopted to be mainly used in medium-sized and large-scale air-conditioning, but hardly in small-sized Household Air Purifier.
When strong UV light is occurred and provides large photocatalytic filter, large-size air conditioning has high speed air flow and area and its performance deodorizing effect difficulty especially.
But when small size air cleaner, the size of photocatalytic filter and UV generator is limited, and speed air flow also reduces.Therefore, in the urgent need to developing such air purifier, it even also demonstrates certain level or higher deodoriging properties under small light catalytic filter and UV generator.Especially, in Household Air Purifier, noise and energy consumption all will be thought over.But in the prior art, the development of air purifier concentrates on medium-sized and large-size air conditioning, and because this reason, the technology being applicable to new environment (such as family) remains inadequate.
If in order to strengthen effect with the photocatalytic filter of strong UV light irradiation small size air cleaner, then the effect of photocatalytic filter can not be guaranteed, and can rapid degradation or energy consumption will excessively be increased by the material in the region of strong UV light irradiation.In addition, the UV light emitting diode of quantity that increases is installed and the short life of UV light emitting diode will cause the increase of expense.
Further, although also can expect to use, there is the UV light emitting diode that peak wavelength is approximately 270nm, known most UV light can by Titanium dioxide absorption, the efficiency of air purifier can be increased, but the not talkative deodorizing effect having use that peak wavelength is approximately the UV light emitting diode of 270nm and show, because the UV light that the peak wavelength launched from UV light emitting diode is approximately 270nm is significantly than using peak wavelength to be that the power of the UV light of other values is faint.
In addition, carrying out new research in the shape of photocatalytic filter or size, it even can both demonstrate the effect of enhancing under little size, and relevant with the photocatalytic filter with UV light source.The shape of photocatalytic filter or size demonstrate has close ties with air drag, and the specifications and characteristics of the fan that may be used for small size air cleaner must be defined.For this reason, for the normal function of small-sized air purifier, air flowing held stationary is made to be important by the air drag reduced in air purifier.
In addition, need development to prepare the method for photocatalytic filter, it can strengthen the activation effect of photocatalytic filter self.Need not speak more, a kind of technology that even can obtain high deodorizing effect by the photocatalytic filter of low capacity is one of technology needed most in the technical field relevant to small size air cleaner.
In addition, when using UV light emitting diode and photocatalytic filter to prepare compact air purifier, fan and putting in order of different filters also will be thought over.According in the medium-sized of prior art and large-size air conditioning, first dust is collected by dust collecting filter, and then implements deodorizing by photocatalytic filter.Here, filter is the biggest factor reducing air flow pressure, and is therefore not difficult to find out, when photocatalytic filter is used to small size air cleaner, it is used to function same in medium-sized or large-size air conditioning by demonstrating with it.
In addition, need to catch the malignant bacteria entrained by the air in family.Always for filtering the filter that the HEPA filter of even bacteria removal is the flowing of remarkable slow down air, and because this reason, it is difficult to use in small size air cleaner.If what the installation of HEPA caused air to flow significantly slows down, otherwise then it can affect the deodorization functions of photocatalytic filter.For this reason, need to find another kind of device, when significantly not intervening the air flowing in air purifier, it can bacteria removal effectively.
Especially, the inner space of vehicle that the smell of smoke from cigarette is difficult to be eliminated wherein is badly in need of having the air purifier of high odor removal efficient.Because inner space of vehicle is very narrow and small, so it needs the air purifier occupying very little space or do not take up space, there is the ability purified air significantly simultaneously.Especially, because the frequent vibration of automobile, so air purifier should design like this, even if make at automotive interior, it can remain on fixing position, and can install in a straightforward manner.Especially, the air purifier for automobile is provided as accessory by most motor corporation, and the problem therefore brought is the air purifier used on a kind of automobile can not be used for other automobiles.Therefore, in the technical field relevant to automobile air purifier, to portable air purifier, there is high demand.
In addition, if air purifier is difficult to maintenance and repair or is difficult to make, then because consider its function, its marketability is lowered, and its user will feel not convenient.Therefore, need the air purifier with simple structure, and it should be easy to manufacture and be convenient to maintenance and repair.
Utility model content
The utility model is made to solve the aforementioned problems in the prior, and the purpose of this utility model is to manufacture the air purifier using UV light emitting diode and photocatalytic filter, and determine the peak wavelength of UV irradiation level, UV light emitting diode and input power, the shape of photocatalytic filter, specification, size and material, processing method and the relation between UV light emitting diode and photocatalytic filter, these can strengthen the odor removal efficient of air purifier.
Another aspect of the present utility model provide a kind of there is high deodorizing, dust is collected and the compact air purifier of germicidal efficiency.
Another aspect of the present utility model provides a kind of air purifier, and it is compact, and it be may be used in automobile, and can be fixed on inner space of vehicle in a straightforward manner.
Another aspect of the present utility model provides a kind of air purifier, and it has the maximized ability of purifying air, and energy consumption is less, and noise level is low.
Another object of the present utility model is to provide a kind of compacter air purifier, and it has internal structure complicated but of a tightly knit structure.
To achieve these goals, the utility model provides a kind of air purifier and comprises: be arranged on the UV light emitting diode for photo catalytic activation on UV light emitting diode substrate; And photocatalytic filter, it is set to described UV light emitting diode substrate spaced apart, and in the face of the UV light emitting diode for photo catalytic activation, wherein, described air purifier has following technical characteristic.
Described photocatalytic filter comprises and covers suprabasil TiO 2.
The UV irradiation level that the surface of UV light emitting diode faced by described photocatalytic filter detects is 10-20mW/cm 2, and be preferably 14-15mW/cm 2.
The UV light launched from the UV light emitting diode for photo catalytic activation has the peak wavelength of 340-380nm, and is preferably 360-370nm.
The electric energy be applied to for the UV light emitting diode of photo catalytic activation has the voltage of 5-15V and the electric current of 200-300mA.
Described photocatalytic filter comprises the parallel chamber of multiple vicinity, and described chamber defines in the face of air flowing access on the direction of the UV light emitting diode of photo catalytic activation, and the height of described photocatalytic filter is 2-15mm, and is preferably 5-10mm.
When viewed from air-flow direction, the shape in chamber is square.
The thickness (t) of the framework between chamber is 0.3-1.2mm, and is preferably 0.5-0.7mm.
The width in each chamber is 1-4mm, and is preferably 1.8-2.2mm.
The density in chamber is 30-260 chamber/square inch, and is preferably 80-120 chamber/square inch.
Substrate is made up of porous ceramic film material.
Photocatalytic filter will be by covering suprabasil TiO 2at 350-450 DEG C, sinter 1-2 hour prepare.
Described air purifier is designed to air and flows to photocatalytic filter from UV light emitting diode substrate.
Described air purifier comprises further: UV reflecting plate, is arranged on the lateral parts relevant to the part between UV light emitting diode substrate and photocatalytic filter.
When the direction viewing of flowing from air, the shape on the described surface of photocatalytic filter is circular or square.
The area on the described surface of photocatalytic filter is 4 2-7 2cm 2, and be 2-3cm for the spacing between the UV light emitting diode of photo catalytic activation and the described surface of photocatalytic filter.Preferably, the area on the described surface of photocatalytic filter is 5.3 2-2.7 2cm 2, and be 2-3cm for the spacing between the UV light emitting diode of photo catalytic activation and the described surface of photocatalytic filter.
UV light emitting diode for sterilization is designed to the UV light that irradiation has germicidal wavelength, UV irradiation direction is identical with the UV irradiation direction of the UV light emitting diode for photo catalytic activation, and the UV light emitting diode for sterilization is arranged on UV light emitting diode substrate.
Described air purifier comprises further: dust collecting filter, is arranged on the rear side of photocatalytic filter.
UV light emitting diode substrate and photocatalytic filter are arranged in the inner shell of air flowing, be arranged in such a way: photocatalytic filter is disposed adjacent to the inwall of a part for inner shell, it has relatively large area of section, and UV light emitting diode substrate is set to the spaced apart from inner walls with a part for inner shell, it has relatively little area of section.
Described air purifier comprises the upper shell with relatively large size and the lower house with relative little size, and lower house is arranged on the bottom of upper shell.The inner shell with the inner space vertically extended is fixed in upper shell and lower house by this way, make it with upper shell and lower house spaced apart: a part with relative large cross-sectional area for inner shell is arranged in upper shell, and a part with relatively little cross-sectional area for inner shell is arranged in lower house.At least side of the upper end of lower house has air-inlet grille, is sucked enters in lower house by air-inlet grille extraneous air.
The air intlet formed in the bottom of inner shell is arranged on the At The Height lower than air-inlet grille, and the part of the lower house corresponding with the vertical portion between air-inlet grille and air intlet and inner shell is arranged at each interval.
Described air purifier comprises the fan of the upstream of the UV light emitting diode substrate be arranged in inner shell further.
Fan is designed to promote extraneous air and enters inner shell, and it is fixedly mounted in the fan containing section of the bottom of inner shell.Fan has the pumping unit being formed in opposite side, and it extends transversely, and air intlet is formed at the opposite side of fan containing section, and air-inlet grille is formed in the front of lower house.
Inner shell is made up of the part that two are separated: left shell and right shell body.
Described air purifier comprises the carbon filter be arranged in air intlet further.
Lower house is made up of the part that two are separated: procapsid and back casing.Procapsid is designed to, when procapsid is separation time, carbon filter is exposed to outside.
Described air purifier is included in the pair of parallel ladder parts formed near air intlet further, and the housing of carbon filter is assemblied between ladder parts.
The inner shell be spaced and lower house are connected to each other by the screwed part being formed in lower house, and the circular portion of screwed part supports the housing of carbon filter, thus prevent carbon filter and depart from ladder parts.
The housing of carbon filter comprises prefilter, and active carbon is incorporated in the housing of carbon filter.
The housing of carbon filter has the elaxtic seal be connected with housing, in the space flowed between the housing of carbon filter and ladder parts to stop air.
Fan has discharge portion, discharge portion is designed to air to discharge upwards enter inner shell, and inner shell is included in the streamlined diverging duct above fan containing section, be designed so that the sectional area that air flows progressively increases from discharge section.
Inner shell is included in the direct fluid device above the discharge section of fan, is designed to oxygen diffusion to streamlined diverging duct.
UV light emitting diode substrate a distance above streamlined diverging duct is arranged in such a way: UV light emitting diode substrate tilts according to the streamline shape of streamlined diverging duct.
Photocatalytic filter and dust collecting filter are arranged on the height correlation of height in inner shell and upper shell, make photocatalytic filter and dust collecting filter be telescopic from inner shell in direction, side.
The elastic buffer that described photocatalytic filter comprises catalyst member and covers around catalyst member.
Photocatalytic filter containing section has the opening portion of the two side portions exposing photocatalytic filter, and its front surface from photocatalytic filter extends.
Described dust collecting filter comprises: for collecting the filter component of dust; Hold the framework of filter component, be designed to filter component to be fixed on inner shell or by filter component extract out from inner shell; With the handle be formed on framework front.
Inner shell comprises: the discharge portion being arranged on photocatalytic filter downstream, is designed to air to discharge from inner shell.
Inner shell comprises: streamlined diverging duct, is designed to guide air to flow to discharge portion.
Inner shell comprises: UV blocking radiation plate, is arranged on the upstream of discharge portion, and is designed to stop that UV light is transmitted into outside by discharge portion.
Inner shell comprises: the PCB standing part above streamlined transmitting pipeline, is designed to fixing control PCB.
Described air purifier comprises: the top shell being fixed on the top of PCB standing part, is designed to Coverage Control PCB and discharge portion, and is fixed to the upper end of inner shell.Under the state being fixed on the top of inner shell at upper shell, the upper end of upper shell connects the outer peripheral lower end of top shell.
Top shell has air discharge grille, is designed to be communicated with discharge portion.
Top shell has button, is designed to ON/OFF control PCB.
Described air purifier comprises: inside cable, is designed to control from PCB transmission of electric energy to fan and UV light emitting diode substrate and controls fan and UV light emitting diode substrate.Inside cable stretches out from control PCB, with the outside close contact of inner shell, and is then entered the inner space of inner shell by the inside cable through hole be formed in fan containing section.
The inside cable being extended into the inner space of inner shell by inside cable through hole is connected to fan, and extends along the inner space of inner shell further, thus is connected to UV light emitting diode substrate.
Photocatalytic filter and dust collecting filter are provided so that it can pull out from inner shell, and inside cable extends along the left side of inner shell or right side.
Inside cable through hole is formed at the upper end in the front of fan containing section.
Control PCB has electric energy input connector, electric energy input connector exposes to the right, make it possible to, along direction left, connector device is fitted on electric energy input connector, or electric energy input connector exposes to the left, make it possible to, along direction to the right, connector device is fitted on electric energy input connector.
The stepped portion that upper shell comprises cylindric side part and extends internally from the lower end of cylindric side part.Lower house comprises cylindric side part, and its diameter is less than the diameter of upper shell, and therefore upper shell is fixed to the top of lower house by this way: wherein, and upper shell moves up and arranges around lower house bottom lower house.
The stepped portion of upper shell has passing hole, and the stepped portion of lower house has opening portion.External cable extends to outside by the space between the passing hole of mating each other and opening portion.
The inside of upper shell has locking projections, and it has circumferential angled surfaces, and the outer surface on the top of inner shell has: protruding holding tank, is positioned at the position corresponding to described locking projections; Protruding holddown groove, is set to bump, adjacent holding tank; Click feel between protruding holding tank and protruding holddown groove is protruding.
Protruding holding tank has the open shape in bottom, and protruding holddown groove has the shape of bottom lock.The locking projections of upper shell inside is designed to: move up to be assembled to protruding holding tank along protruding holding tank, and then moves to side and get over click feel projection to be assembled to protruding holddown groove, by like this upper shell being fixed to inner shell.
The stepped portion formed in the upper end of lower house has depression, and when upper shell moves up or down along the outside of lower house, locking projections can pass through this depression.Be recessed to form immediately below protruding holding tank.
The end of external cable has shape terminal.
Described air purifier can obtain in following technique effect one or more: compact conformation, makes it can be assemblied in the glass stand of automobile; May be used for deodorizing, dust is collected and sterilization, and strengthen odor removal efficient, the germicidal efficiency of air purifier; Have the maximized ability of purifying air, energy consumption is less, and noise level is low; Be convenient to maintenance and repair.
Accompanying drawing explanation
Fig. 1 is the perspective view according to air purifier of the present utility model.
Fig. 2 is the decomposition diagram of the air purifier shown in Fig. 1.
Fig. 3 to Fig. 5 is for showing the perspective view of the assembling process of the parts shown in Fig. 2;
Fig. 6 is the perspective top view according to upper shell of the present utility model.
The perspective view of inner shell of Fig. 7 to Figure 10 for having seen from all directions after being separated shell (upper shell, lower house and top shell) and being separated carbon filter.
Figure 11 is the perspective view of the air purifier of the present utility model being separated upper shell and procapsid.
Figure 12 is the perspective view according to air purifier of the present utility model, and it is in such state, and wherein top shell, upper shell, back casing and left shell are omitted.
Figure 13 is the perspective view according to air purifier of the present utility model, and it is in such state, and wherein top shell, upper shell, back casing and right shell body are omitted.
Figure 14 is the perspective view of the arrangement of photocatalytic filter and UV light emitting diode substrate.
Figure 15 is the top view of photocatalytic filter.
Figure 16 is showing the figure of acetaldehyde degradation, and it is the function of the irradiation level of the UV light in the front arriving photocatalytic filter.
Figure 17 is showing the figure of the UV absorptivity of photocatalytic filter, and it is the function of UV wavelength.
Figure 18 is the figure of the removing speed showing acetaldehyde under different UV wavelength.
Figure 19 is the figure of the change of the acetaldehyde removing speed of the photocatalytic filter showing differing heights.
Figure 20 is the figure of the change of the acetic acid removing speed of the photocatalytic filter showing differing heights.
Figure 21 is showing the figure of the deodoriging properties of photocatalytic filter, by sintering 2g TiO under different sintering temperature 2within 1 hour, obtain.
Figure 22 is showing the figure of the deodoriging properties of photocatalytic filter, by sintering 2.5g TiO under different sintering temperature 2within 1 hour, obtain.
Figure 23 is showing the figure of the deodoriging properties of photocatalytic filter, by sintering 2.5g TiO in 400 DEG C under different sintering time 2obtain.
Detailed description of the invention
Below with reference to the accompanying drawings exemplary embodiment is described in detail.But of the present utility model disclosing will be presented as multi-form and should not be regarded as being limited to the embodiment of showing herein.But providing of these embodiments makes the utility model will be openly comprehensive and complete, and will pass on scope of the present utility model to those skilled in the art fully.
For those skilled in the art, if necessary, the structure of any one embodiment stated herein and parts can be applied to or replace those parts in other embodiments, or are omitted, or miscellaneous part can add there to.
Hereinafter, with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.
The outward appearance of air purifier
With reference to figure 1, it is the perspective view according to air purifier of the present utility model, and described air purifier comprises: have the upper shell 10 of relatively large diameter, have the lower house 20 of the diameter more smaller than the diameter of upper shell 10 and be arranged on the top shell 40 at top of upper shell 10.
Be provided with two buttons 41 at the core of top shell 40, button 41 comprises: on/off button, allows to open and close air purifier; Blast velocity control button, controls the air stream (wind speed) in air purifier.In addition, be provided with two lamps 42, lamp 42 allows the open/close state and the wind speed that visually check air purifier.Air purifier can be handled, and such as, by pressing on/off button a few second with opening/closing air purifier, and presses blast velocity control button with controlled wind speed.
In the side of top shell 40, be provided with air discharge grille 43, be discharged by the air after its purification.Therefore, the air after purification is discharged by by air discharge grille 43, and large foreign substance is stopped by grid 43, and therefore it be prevented from entering air purifier.
The diameter of upper shell 10 is greater than the diameter of lower house 20.The diameter of upper shell 10 is preferably more than the upper end of Automobile cup supporter, and like this when air purifier is mounted in glass stand, it can not be inserted into the glass stand of automobile.
Lower house 20 is made up of the part that two are separated: procapsid 21 and back casing 22.Air-inlet grille 212 is formed near the upper end of procapsid 21.
Therefore, extraneous air will flow into lower house 20 by air-inlet grille 212, and extraneous air purifies by the structure arranged in air purifier, and then be flowed out by the air discharge grille 43 by top shell 40 in air purifier.
The design of air purifier and syndeton
Fig. 2 is the Knock-Down Component perspective view of the air purifier shown in Fig. 1, and Fig. 3-5 is for showing the perspective view of the flow process of the parts in assembly drawing 2.The reason that upper shell 10 is displayed on the bottom of Fig. 2-5 is that upper shell 10 has such structure: it moves to top with locked from the bottom of air purifier.
As shown in Figure 1, upper shell 10, lower house 20 and top shell 40 constitute the shape of air purifier, and as shown in Figure 2, inner shell 30 is arranged on wherein.Inner shell 30 with constitute the upper shell 10 of external shell, lower house 20 and top shell 40 and be combined, to firmly fix external shell.
As shown in drawings, inner shell 30 is made up of the part that two are separated: left shell 31 and right shell body 32.Inner shell 30 is divided in the direction of the part that two are separated and lower house 20 and is divided into the direction of procapsid 21 and back casing 22 at a right angle.When the segmentation direction of the lower house 20 of external shell is different from the segmentation direction of inner shell 30 as above, shell structure can be connected to each other more firmly.
In the upper shell of inner shell 30, be provided with PCB standing part 33, it is placed like this, and make control PCB 51 can not cover discharge portion 34, discharge portion 34 is positioned at the side of the upper end of inner shell 30.In addition, in PCB standing part 33, space is provided by the streamlined diverging duct 382 be formed at below PCB standing part 33.As described below, in order to guide the air flowing into inner shell 30 to arrive discharge portion 34, streamlined diverging duct 382 is formed in the top of inner shell 30.When PCB standing part 33 is arranged on by when being formed in space that diverging duct provides, the inner space of air purifier can be effectively utilised.
The right side being provided with the inner shell 30 of PCB standing part 33 wherein defines external cable through hole 322, external cable can be connected to control PCB 51 by external cable through hole 322, and define inside cable passing hole 312 in left side, fan 60 and UV light emitting diode substrate 55 is applied to by from control PCB 51, as described below by inside cable passing hole 312 electric energy.
In the air flow duct structure formed by inner shell 30, be provided with dust collecting filter 90 and photocatalytic filter 80 from the top to the bottom adjacent to each other successively, as shown in the figure.Below photocatalytic filter 80, UV light emitting diode substrate 55 is fixed on to be located in a distance with photocatalytic filter 80.UV light emitting diode on UV light emitting diode substrate 55 is arranged by towards photocatalytic filter 80.
Dust collecting filter 90 and photocatalytic filter 80 have fully blocked air flow duct structure, and the air of such flow ipe must pass through photocatalytic filter 80 and dust collecting filter 90.On the other hand, UV light emitting diode substrate 55 is arranged on substrate standing part 303, and its inwall from inner shell 30 is internally protruding, by this way the spaced apart from inner walls of it and inner shell 30, and such air flow is by the space between them.As mentioned below, at the core of UV light emitting diode substrate 55, having peak wavelength is that the light emitting diode of 275nm is provided for sterilization, and around described UV light emitting diode, having peak wavelength is that three UV light emitting diodes of 365nm are arranged radially with activation light catalytic filter 80.
It should be noted, dust collecting filter 90 and photocatalytic filter 80 have the structure that can pull out forward to change.Because these filters are not overlapping with the direction that external cable as above (right) and inside cable (left) are arranged by the direction of pull (front), when the filters are changed, cable does not need separated.
The bottom of inner shell 30 is provided with fan containing section 301, fan 60 is contained and is fixed on wherein, and be formed with air intlet 302 in the left side of fan containing section 301 and right side, flowed into fan containing section 301 by the air that fan 60 sucks by air intlet 302.
Have such structure for the fan 60 in air purifier of the present utility model: even in narrow space, it also can effectively produce air stream.As shown in the figure, at the core of fan 60, define the suction part 61 that twocouese is open.By the rotation of impeller, the air introduced by suction part 61 is discharged into the discharge portion 63 of the top being formed at suction part 61 consumingly.
Be provided with movement-oriented device 37 above discharge portion 63 in inner shell 30, it is designed to: disperseed widely by the air stream discharged from the discharge portion 63 with stenosed section.In addition, define streamlined diverging duct 381 in the bottom of inner shell 30, its another element disperseed widely as the air stream of being discharged by discharge portion 63.Movement-oriented device 37 as above and streamlined transmitting pipeline 381 can draw airflow guiding naturally, and the kinetic energy rejection of the air stream of simultaneously being discharged at a high speed by narrow discharge portion 63 minimizes.
Be provided with plate frame round the air intlet 302 formed in the bottom of inner shell 30, and define ladder parts 305 extending longitudinally at the top of plate frame and bottom.Ladder parts 305 have such structure: it is combined with the carbon filter 70 covering air intlet 302.As shown in the drawings, the air intlet 302 formed in the bottom of inner shell 30 is covered by carbon filter 70.Carbon filter 70 comprises for keeping the housing 71 of carbon filter 70 shape and being arranged at the prefilter 72 (side and its opposite side in the face of air intlet 302) in the open portion of housing 71 both sides.
The function of prefilter 72 is filter dust, stops that the active carbon (not shown) be accommodated in housing flows out in housing 71 simultaneously.
The function of the active carbon in carbon filter 70 is the stink particle adsorbing and remove in air.When the number of times that active carbon uses increases, its adsorption capacity declines, and the regeneration of active carbon is very difficult.For this reason, in the utility model, for the ease of the replacing of carbon filter 70, be provided with and can connect and dismountable structure.
As previously discussed, be provided with flat board member around air intlet 302, and ladder parts 305 are arranged on its top and bottom.The width of carbon filter 70 equal or slightly larger than between two ladder parts 305 distance (when carbon filter 70 shape for square, described width is the foursquare side length of side).Therefore, each in two carbon filters 70 can be arranged on left side and the right side of the lower end of inner shell 30, does not need to use independent integrated structure by being assemblied in the top of carbon filter 70 and bottom between two ladder parts.
As shown in the figure, the housing 71 around carbon filter 70 is provided with elaxtic seal 73, with stop air flow into carbon filter 70 housing 71 and around air intlet 302 plate frame between space.
As shown in the figure, carbon filter 70 has trapezoidal cross-section, and its maximum side contacts with inner shell 30, and narrows gradually towards opposition side.As shown in Figure 4, the tilted shape of the marginal portion of carbon filter 70, it is formed by this structure, is meshed with the circle of screwed part 306, to be connected with back casing 22 by inner shell 30.By this structure, carbon filter 70 engages with screwed part 306, and is supported on the direction towards inner shell 30.
About the syndeton between housing, first two separate sections of inner shell 30 are connected to each other by screw thread etc., and under being in such state, its fan 60 and UV light emitting diode substrate 55 are fixed to the either side of inner shell 30.In preferred embodiment of the present utility model, fan 60 and UV light emitting diode substrate 55 are fixed to left shell 31, its inside is formed with inside cable passing hole 312, and passing hole 312 is covered by right shell body 32, the inside cable of connection control PCB 51 and fan 60 and UV light emitting diode substrate 55 whereby two inner housing part is connected to each other, because will be arranged in left shell 31 through inside cable passing hole 312.
Then, as shown in Figure 4, control PCB 51 is fixed to the substrate standing part 303 on the top of inner shell 30 by screw thread etc., and dust collecting filter 90 and photocatalytic filter 80 are inserted in dust collecting filter containing section 35 and photocatalytic filter containing section 36 respectively.
Next, as shown in Figure 5, back casing 22 is fixed to the bottom of inner shell 30 by screw thread (screwed part 306 being formed in screw-like channels in back casing and inner shell as shown in Figure 4), and procapsid 21 is connected to back casing 22, whereby lower house 20 is fixed to inner shell 30, and top shell 40 is fixed to the top of inner shell 30.
Finally, in the state shown in Fig. 5, upper shell 10 is assembled from the top to the bottom, and being locked as shown in Figure 1, obtain auto levelizer whereby.
Relation between the shell structure of air purifier and filter replacement structure
In the utility model, when being connected when procapsid 21 and being connected when upper shell 10, procapsid 21 can be connected successively securely with upper shell 10, and does not need to use screw thread, is connected unlike other housings.According to the utility model, upper shell 10 can separation as shown in Figure 5, does not need to use separating tool.After upper shell 10 is separated, procapsid 21 also can not use separating tool ground separated.
Hereinafter, the syndeton of procapsid 21 and upper shell 10 will be explained.
Fig. 6 is the perspective view of upper shell 10 of the present utility model.Upper shell 10 comprises cylindric side part 11, and from the stepped portion 12 that the bottom of cylindric side part 11 extends internally.The internal diameter limited by stepped portion 12 equals or slightly larger than the diameter of lower house 20, such upper shell 10 can assemble around the outside of lower house 20, and move to the top of inner shell 30 from the bottom of lower house 20, with such state, wherein lower house 20 is attached to inner shell 30.
Lower house 20 comprises: cylindric side part 211,221, has the internal diameter less than upper shell 10; Stepped portion 213,223, is formed at the top of cylindric side part 211,221 respectively; With ladder side part 214,224, upwards extend from the end of stepped portion 213,223 respectively.The diameter of ladder side part 214,224 is equal to or slightly less than the internal diameter of cylindric side part 11.The stepped portion 213,223 of lower house 20 is connected with the stepped portion 12 of upper shell 10, when upper shell 10 moves up along the outer surface of lower house 20, limits moving upward of upper shell 10 whereby.At the confined At The Height that moves upward of upper shell 10 as above, the upper end of upper shell 10 is connected with top shell 40.
As shown in Figure 6, in the inner side of upper shell 10, define locking projections 14 and positioning convex 15.Before procapsid 21 in stepped portion 213 and front ladder side part 214, define depression 216 in the position corresponding with locking projections 14, and in the rear stepped portion 223 of back casing 22, define locating slot 226 in the position corresponding with positioning convex 15.
Therefore, when upper shell 10 assembles around the outside of lower house 20 and moves, if only locking projections 14 and positioning convex 15 respectively alignment recess 216 and locating slot 226 time, upper shell 10 can be moved upwards up to latched position completely.
Meanwhile, as shown in Figure 8, in the side of inner shell 30, protruding holding tank 316 and protruding holddown groove 317 are formed adjacent to each other.Protruding holding tank 316 and protruding holddown groove 317 all have the shape corresponding with locking projections 14.But protruding holding tank 316 has the open shape in bottom, and protruding holddown groove 317 has the shape of bottom lock.Click feel projection is defined between protruding holding tank 316 and protruding holddown groove 317.
As above, when locking projections 14 and positioning convex 15 distinguish alignment recess 216 and locating slot 226, and when upper shell 10 is moved upwards up to latched position completely, after the opening shape of the bottom by protruding holding tank 316, the locking projections 14 be formed in upper shell 10 is accommodated in protruding holding tank 316.Under this state, when upper shell 10 rotates, the click feel that the inclined plane (see Fig. 6) of such locking projections 14 gets between protruding holding tank 316 and protruding locating slot 317 is protruding, and locking projections 14 is fixed to protruding holddown groove 317, fully secures upper shell 10 whereby.
Under this state, upper shell 10 move up through top shell 40 and stepped portion 213,223 is limited, and the rotation of upper shell 10 is limited by the left and right side of protruding holddown groove 316 and wall.In addition, the bottom lock shape restriction moving downward the protruding holddown groove 317 of the locking projections 14 that has been fixed of upper shell 10.
When upper shell 10 being fixed as previously discussed, procapsid 21 is also limited by upper shell 10 and back casing 22.Especially, because upper shell 10 is fixed to cover lower house 20, so procapsid 21 can also be securely held, do not need to use independent screw thread.But because upper shell 10 only covers the top of lower house 20, procapsid 21 can keep fixedly securing state fully, if the bottom of procapsid 21 has such structure, the bottom of itself and back casing 22 is with combinations such as snap-fastener modes.
Meanwhile, in upper shell 10, define passing hole 13 in the position that the opening portion 215 with procapsid 21 is corresponding.Passing hole 13 has such size, external cable is made to pass it, and opening portion 215 has such size, external cable is made to pass it, the locking projections 14 of upper shell 10 can rotate between protruding holding tank 316 and protruding holddown groove 317 simultaneously, namely, the size of opening portion 215 can be longer than the size of passing hole 13.
As Fig. 5, opening 215 is arranged on the side of right shell body 32 with such state, and wherein lower house 20 is connected to inner shell 30.Its function is the path of the motion in order to ensure external cable, and external cable can be connected to the electric energy input connector 512 of control PCB 51 by external cable through hole 322, and then can pass passing hole 13 and opening portion 215, extend to outside through the space right shell body 32 and upper shell 10.
Electric energy input connector 512 can be made up of socket, and the terminal (not shown) of external cable can insert in socket.The reason of use terminal socket is the replacing of conveniently external cable.Such as, when air purifier of the present utility model is used to automobile, 12V direct-flow cigar lighter socket can be used, but when air purifier is used in family or office, 110V or 220V alternating current can be used.Therefore, the possibility changing external cable is very high, and for this reason, external cable preferably uses terminal socket to be connected to control PCB 51.
It should be noted that, the direction that direction and the external cable of terminal insertion are drawn out is vertical.In other words, the terminal of external cable inserts (horizontal direction) with diametric(al), and the direction that external cable is drawn out is in downward direction.For this reason, if the terminal of external cable is shape, support terminals on the direction that the inside of upper shell 10 can connect at terminal, and therefore even external cable is pulled by from outside, also can prevent external cable from deviating from.
The reason that upper shell 10 and procapsid 21 are designed to described syndeton is to not need to use separating tool to change the dust collecting filter 90 of air purifier 90 by means of only being separated upper shell 10.Especially, with the order that above-mentioned locking means is contrary, upper shell 10 is reversed rotation, and such locking projections 14 is deviate from from protruding holddown groove 317, protruding and get back to protruding holding tank 316 by click feel.Under this state, upper shell 10 is extracted downwards, as shown in Figure 5.Under this state, as shown in drawings, the part that dust collecting filter 90 inserts is exposed.Therefore, if only upper shell 10 is separated, dust collecting filter 90 can be readily replaced.
If the handle of dust collecting filter 90 is pulled, dust collecting filter 90 can be drawn out, and as shown in Figure 10, and under this state, the filter component 93 only in framework 91 can be replaced.
In addition, after upper shell 10 is separated as above, procapsid 21 can be dismantled by from back casing 22, does not need to use separating tool.Therefore, as shown in figure 11, change photocatalytic filter 80 and carbon filter 70 is possible from the part of inner shell 30, this part is exposed by dismounting procapsid 21.
Fig. 7-10 be the separated and carbon filter of all external shell (upper shell, lower house and top shell) separated after the perspective view of inner shell 30 observed from several direction, and Figure 11 is air purifier of the present utility model is in perspective view under the separated state of only upper shell 10 and procapsid 21.
About the inner shell 30 of air purifier of the present utility model, the front side of inner shell 30 has such Facad structure, and it allows all dust collecting filter 90, photocatalytic filter 80 and carbon filter 70 to be inserted into and to pull out.Therefore, after upper shell 10 is separated, dust collecting filter 90 can pull the handle of dust collecting filter 90 to change by the front of the exposure at inner shell 30.After procapsid 21 is separated, the photocatalytic filter 80 being positioned at the front of the exposure of inner shell 30 can be drawn out.
As shown in FIG. 14 and 15, the catalyst member 81 in photocatalytic filter 80 has high hardness and fragility, because it is by sintering TiO in grill-shaped ceramic bases 2obtain.Therefore, elastic buffer 82 is provided to surround catalyst member 81, is not impacted, and allow catalyst member 81 and inner shell 30 compact siro spinning technology each other with guard catalyst part 81.
TiO 2the problem of the photocatalytic filter 80 covered is that photocatalysis efficiency reduces in time, because foreign substance attachment in its surface.Although there is this problem, filter can not frequently be changed, and is because it expensive.Therefore, relevant to the regeneration of filter technology is developed constantly.Therefore, optical catalyst filter 80 need can install/dismountable structure for change or regeneration.But, because photocatalytic filter 80 has such structure, wherein elastic buffer 82 as above covers around catalyst member 81, forms one installs or removes photocatalytic filter 80 handle from inner shell 30, just as dust collecting filter 90, this is thorny.For this reason, in the utility model, as illustrated in figures 7-11, inner shell 30 only has procapsid 21 to be nonopen, but the front extended from front side and a part for side, when photocatalytic filter 80 is inserted into inner shell 30, all by opening, a part for the front surface of photocatalytic filter 80 and side can be exposed.Due to the shape of inner shell 30, hand grip can be used in the both sides of photocatalytic filter 80, and therefore photocatalytic filter 80 is easily pulled out.
Electric connection structure in air purifier
With reference to figure 8, on the surface of the left shell 31 according to air purifier of the present utility model, in succession define inside cable passing hole 312, inside cable groove 313 and inside cable guiding groove 314.In addition, inside cable through hole 315 is formed at the upper end in the front of the fan containing section 301 of inner shell 30.
Therefore, in order to the inside cable of powering to fan 60 and UV light emitting diode substrate 55 from control PCB 51 passes in succession through inside cable passing hole 312, inside cable groove 313 and inside cable guiding groove 314 from the control PCB 51 be fixed on PCB standing part 33 along the outside of inner shell 30, and through inside cable through hole 315, enter the inner space of inner shell 30 thus.The inside cable entering inner space is connected to the fan 60 of the bottom being arranged on inner shell 30, and extends to be connected to UV light emitting diode substrate 55 further.In air purifier of the present utility model, inside cable enters the inner space of inner shell 30 by the inside cable through hole 315 of fan containing section 301, it is the path between space outerpace and inner space, and therefore inner shell 30 keeps airtight conditions, further increase efficiency that air stream accelerated by fan 60 thus (if other parts of inner shell 30 are perforated, and inside cable is inserted into this part, then the partial air of flowing in inner shell 30 can be flowed out by the space between perforation and inside cable).
When seeing, seem that inside cable can be easy to enter inner shell 30 by the discharge portion 34 of inner shell 30, discharge portion 34 is arranged to contiguous control PCB 51.But, because the air flowing access in inner shell 30 is blocked by dust collecting filter 90 and photocatalytic filter 80, impossible (if cable is arranged by this route by the route of discharge portion 34, the air of inner shell 30 will around cable bypass, and therefore the air cleaning efficiency of clarifier must reduce).In addition, as above, the filter in the front of inner shell 30 can be replaced.Therefore, in the utility model, inside cable connects according to the side of above-mentioned route by inner shell 30.
As shown in Figure 10, inside cable passing hole 312 and external cable through hole 322 are arranged on the both sides on the direction of departing from filter pull-out direction.Therefore, as shown by the broken line in fig. 9, inside cable and external cable are connected to left side and the right side route of inner shell 30.This structure significantly increases the utilization rate of the inner space according to air purifier of the present utility model, inner space is very little, and the structure connecting and dismantle filter should be had in its front, and therefore air purifier of the present utility model can be made more compact.
Flow passage in air purifier
Figure 12 is showing the perspective view according to air purifier of the present utility model, it is in such state, top shell 40, upper shell 10, back casing 22 and left shell 31 are all removed, Figure 13 is the perspective view according to air purifier of the present utility model, it is in such state, and wherein top shell 40, upper shell 10, back casing 22 and right shell body 32 are removed.
According to the flow passage of air purifier of the present utility model as described below.The air that the negative pressure produced by fan 60 is sucked by the air-inlet grille 212 of procapsid 21 is through the space lower house 20 and inner shell 30, and be inhaled into the suction part 61 of fan 60, by carbon filter 70 and the air intlet 302 of the both sides of the bottom of inner shell 30.Then, air is upwards discharged from discharge portion 63 by fan 60, and it is distributed equably by movement-oriented device 37 and streamlined diverging duct 381 enters pipeline configuration, and moves up.
When air moves up, movement-oriented device 37 turns forward with streamline-shaped, and when its upwards time UV light emitting diode substrate 55 be slightly inclined upwardly, the irradiation direction of UV light emitting diode on the substrate 55 does not significantly depart from the scope of photocatalytic filter 80.As seen in Figure 13 and 2, the air flow duct that substrate 55 is set to be formed with inner shell 30 is spaced apart, and the flowing of such air can naturally be led, and reduces the kinetic energy rejection of air stream whereby.
With reference to Figure 12 and 13, streamlined diverging duct 381 has such structure, when its forward time its diameter become large gradually.Had flow passage by the air entering lower house 20 from exterior guiding by air-inlet grille 212 conversely speaking, when the air intlet 302 that it provides towards the bottom of inner shell 30 advances, flow passage becomes large by streamlined diverging duct 381.In other words, streamlined function of dispersing pipeline 381 is the areas of section of the air flowing access increased in inner shell 30, also increases the area of section of the air flowing access in the space between lower case 20 and inner shell 30.Air purifier is allowed to be made compact according to this air flow structure of the present utility model and pipeline configuration, simultaneously the loss of minimum air stream.
Then, the air stream moved up by fan 60 is guided by said structure, through the multiple through holes formed in photocatalytic filter 80, and then by dust collecting filter 90.
It should be noted that UV light emitting diode substrate 55 is placed on the bottom of inner shell 30, the height correlation of a part for this position and lower house 20, described part has relatively little diameter, and photocatalytic filter 80 and dust collecting filter 90 are arranged on the top of inner shell 30, the height correlation of this position and upper shell 10.In other words, according to the utility model, the diameter of inner shell 30 also increases at the At The Height of the stepped portion between lower house 30 and upper shell 10, and UV light emitting diode substrate 55 can be prepared into relatively little, and can be placed on and locate in a distance with photocatalytic filter 80, it is arranged in the small diameter portion of inner shell 30.Photocatalytic filter 80 can be made into slightly large, in order to maximize the area of ingress of air, it is arranged in the increase diameter parts of inner shell 30, and air pressure will frequently occur in the inside of dust collecting filter 90 reduces, it is also arranged on the increase diameter parts of inner shell 30, to increase the area of section of air by filter.Can see, when manufacturing compact air purifier, this structure of the present utility model is the structure that significantly can increase air purification efficiency.
Be directed to discharge portion 34 by the air of filter 80 and 90 by by streamlined diverging duct 382, and be discharged into outside.
Streamlined diverging duct 382 is formed as streamline-shaped, to reduce the area of section of air flowing, reduces the loss of air flowing simultaneously.At the superjacent air space of streamlined diverging duct 382, it is provided by this shape, can be used as PCB standing part 33.Control PCB is fixed to PCB standing part 33, and such air purifier can be operated, and its mode of operation can be examined at top simultaneously.The object of air purifier of the present utility model is assembling and in glass stand.Can see that the existence of action button is arranged at the top of air purifier, and the air venting direction of outwards leading from air purifier top, state when it preferably uses with the utility model is identical.Streamlined diverging duct 382 can reduce air flow losses, guides air to flow to and reaches narrow discharge portion, and ensure that the space that control PCB 51 places, make air purifier compacter by these.
Meanwhile, UV blocking radiation plate 39 is set below discharge portion 34, to stop that UV light is transmitted into outside from UV light emitting diode substrate 55 by discharge portion 34.Therefore, UV blocking radiation plate 39 can eliminate the misgivings of user to the adverse effect of UV light.
The position be inhaled into about air in air purifier of the present utility model and direction, air access portion is arranged on the top (below the stepped portion of upper shell 10 and lower house 30) of lower house 20 and leads forward.About position and the direction of discharging air from air purifier, air discharge portion divides and is arranged on top shell 40 and upwards leads.When entering part and discharge section are configured to spaced apart away from each other, and the different directions that leads as above, the discharge air after purification is prevented from again entering induction part.
In view of this is true, acetaldehyde and acetic acid, it is decomposed by air purifier, and it is heavier than air and therefore deposits, and air access portion is arranged on lower house 20, and air purification efficiency is improved further.
In addition, because air purifier of the present utility model is intended for use glass stand, air-inlet grille 212 is formed at the top of lower house 20, to suck air to be clean.In narrow space between lower house 20 and inner shell 30, define streamlined diverging duct 381 and air intlet 302, air enters inner shell 30 by air intlet 302, air intlet 302 is arranged on the both sides lower than streamlined diverging duct 381, be in dispersing on direction and in vertical direction, making minimum air flow losses of streamlined diverging duct 381.The area of section of the air flowing in inner shell 30 is also guaranteed by streamlined diverging duct 381.In these areas, can find out to achieve and be suitable for the size of air purifier and the air flowing access of state most.
The arrangement of air purifier filter
According to the order that the filter in air purifier of the present utility model arranges according to air flowing access, air is first through the carbon filter 70 that prefilter 72 and active carbon are made, to filter out in air the dust and absorption with bulky grain size and to remove noxious material (such as, ammonia and acetic acid).Then, acetaldehyde and ammonia and acetic acid are degraded by the light-catalyzed reaction of photocatalytic filter 80.Next, the dust collecting filter 90 that air passes through to be made up of fabric filter etc. to remove fine dust, and is then discharged.
The function of prefilter 72 is that pre-filtering is fallen large dust granule and is attached on photocatalytic filter 80 to stop foreign substance such as dust whereby, and the attachment of dust reduces the efficiency of photocatalytic filter 80.And, the function of active carbon be absorbing ammonia and acetic acid to increase the degradation efficiency of acetaldehyde, in the competitive reaction that photochemical catalyst causes, the reaction of acetaldehyde is than ammonia and acetic acid late (acetaldehyde is not easy to be absorbed by active carbon).
In addition, it should be noted that, the dust collecting filter 90 that maximum pressure drop occurs therein is arranged on the downstream of photocatalytic filter 80 to increase the pressure of the air stream contacted with photocatalytic filter 80, improves the efficiency of photocatalytic filter 80 ingress of air whereby further.
And, in the utility model, UV light emitting diode 57 for photo catalytic activation is arranged on the upstream of photocatalytic filter 80, such UV light can from the front of photocatalytic filter 80 (that is, the surface in the face of UV light emitting diode 57 of photocatalytic filter 80) exposure light catalytic filter 80.In this case, light-catalyzed reaction occurs from the front of photocatalytic filter 80 and the surface in contiguous front, before falling generation by air pressure during photocatalytic filter 80, further increase photocatalytic filter 80 by this and to degrade the efficiency of toxic gas.In addition, this arrangement can make dust collecting filter 90 be set directly at the downstream of photocatalytic filter 80, therefore makes air purifier more compact.In addition, UV light emitting diode 56 for sterilization is also arranged on UV light emitting diode substrate 55 of the present utility model, like this for the UV light of sterilization by irradiation to the dust collecting filter 90 being set directly at photocatalytic filter 80 downstream, kill the microorganism and germ that are filled into by dust collecting filter 90 whereby.Therefore, in this case, germicidal efficiency be significantly higher than UV light only irradiation air stream when germicidal efficiency.In addition, the UV light emitting diode for photo catalytic activation and the UV light emitting diode for sterilization are arranged on a single substrate, and this makes structure simple.
In addition, when UV reflecting plate (not shown) is arranged between the photocatalytic filter 80 of the inside of inner shell 30 and UV light emitting diode substrate 55, irradiation can be reflected to photocatalytic filter 80 to the UV light of the inside of housing 30, is further increased the efficiency of deodorizing and sterilization by this.
Relation between photocatalytic filter and UV light emitting diode
Figure 14 is the perspective view of the arrangement of photocatalytic filter 80 and UV light emitting diode substrate 55, and Figure 15 is the top view of photocatalytic filter 80.
With reference to Figure 14, the UV light emitting diode 56 for sterilization is arranged on the core of UV light emitting diode substrate 55, and arranges around UV light emitting diode 56 for three UV light emitting diodes 57 of photo catalytic activation.Especially, the UV light emitting diode 57 for photo catalytic activation will towards photocatalytic filter 80 irradiation UV light.
As shown in figure 15, photocatalytic filter 80 comprises: catalyst member 81, and it covers by sintering the TiO had on the ceramic porous material of hound's-tooth 2(titanium dioxide) obtains; With the elastic buffer 82 of the side of covering catalyst part.
Estimate the front of catalyst member 81 (namely, in the face of for the surface of the UV light emitting diode 57 of photo catalytic activation) and for photo catalytic activation UV light emitting diode 57 between distance the change of the flow behavior according to air is changed, arrive the area of catalyst member 81 and the function of irradiation level as the Distance geometry UV light between UV light emitting diode substrate 55 and photocatalytic filter 80.In view of this expectation is tested, and as a result, can see, in this case, wherein, the length (l) of the side of square light catalytic filter 80 is 5.5cm, when distance between light source 57 and the front (that is, in the face of the surface for the UV light emitting diode 57 of photo catalytic activation) of photocatalytic filter 80 is 2.5cm, the effect of sterilization is best, and when distance reduces to below 2cm or is increased to more than 3cm, the effect of sterilization can degenerate fast.
Distance between light source 57 and the front of photocatalytic filter 80 too little (below 2cm) time, the area of the part of the photocatalytic filter 80 of UV light irradiation reduces, but it arrives saturation state, wherein the efficiency of photo catalytic activation no longer increases, even if when the irradiation level of the UV light on the per unit area of photocatalytic filter 80 increases (the UV irradiation level related experiment of the Figure 16 that sees reference, it will describe subsequently).When UV light emitting diode substrate 55 is too near photocatalytic filter 80, air can not be easy to the central area (place of the main irradiation of UV light) flowing into photocatalytic filter 80, and the amount therefore contacting the air in photo catalytic activation this region the most incidental reduces.
In addition, time distance between light source 57 and the front of photocatalytic filter 80 too large (more than 3cm), in the unit are of photocatalytic filter 80, the irradiation level of UV light reduces with the degree reducing photo catalytic activation, and the air flowing between both is stable, it shows resemble laminar flow, shows that the air capacity that contact photocatalytic filter 80 shows reduces.
Meanwhile, when the length (l) of the side of filter is 4-7cm, the effect of deodorizing is good.If when the length of the side of filter is below 4cm, irradiation to the region not having filter, is illustrated that UV light is wasted by UV light, and if the length of the side of filter is more than 7cm time, by occur UV illumination penetrate less than region, illustrate that filter material and space are wasted.
Simultaneously, the voltage finding when the electric energy of supply UV light emitting diode 57 is below 5V or electric current when being below 200mA, the transmitting of light significantly reduces, show to need to use extra UV light emitting diode, and when the voltage of electric energy be more than 15V or electric current is more than 300mA, even if when electric energy increases, the transmitting of light also can not continue to increase.
Simultaneously, the present inventor has been found that the change of the deodoriging properties of photocatalytic filter 80 depends on the shape in the chamber formed in catalyst member 81, the width (g) in each chamber, the thickness (t) of the framework between chamber, the length of the side of catalyst member 81, the quantity (n) in the chamber of catalyst member, the height (h) of catalyst member, the direction (forward still reversion) of air stream, the sintering temperature of catalyst member 81 and time, for the peak wavelength of the UV light emitting diode 57 of photo catalytic activation and the irradiation level of the UV light in the front of arrival catalyst member 81.
Figure 16 is showing the figure of the degraded of the acetaldehyde of the function of the irradiation level of the UV light as the front arriving catalyst filter 80.
First, the change of the irradiation level of the UV light in the change of the deodoriging properties of photochemical catalyst and the front of arrival catalyst member 81 is detected repeatedly.As a result, can see, when the UV irradiation level of the unit are of photocatalyst surface is 14.67mW/cm 2time following, the deodorizing rate of photochemical catalyst increases along with the increase of UV irradiation level, but when UV irradiation level is higher than 14.67mW/cm 2time, deodorizing rate no longer increases.Especially, this trend is consistent, no matter the quantity (n) in the width (g) in each chamber 83, the thickness (t) of chamber framework, the length of the side of catalyst member, the chamber of catalyst member, the height (h) of catalyst member and the sintering temperature of catalyst member 81 and time.
In addition, the result of repeating test shows, when the UV irradiation level of the unit are of photocatalyst surface is lower than 10mW/cm 2time, the deodorizing rate of light-catalyzed reaction reduces rapidly, may be because the amount of light is sufficient not, and when the UV irradiation level of the unit are of photocatalyst surface is higher than 20mW/cm 2time, increase for the electric flux strengthening UV irradiation level, but significantly do not increased by the deodorizing rate of photo catalytic activation.
Figure 17 is showing the figure of the UV absorptivity of the photocatalytic filter 80 as the function of UV wavelength, and Figure 18 is showing the figure of the removing speed of the acetaldehyde under different UV wavelength.
About the UV absorptivity of photocatalytic filter 80, it can be seen in fig. 17 as the function of UV wavelength, and the UV absorptivity of photocatalytic filter 80 is the highest when the about 270nm of wavelength, and linearly reduces when wavelength is increased to 400nm.But can see the peak wavelength of the UV light emitting diode of use, it is 365nm that photocatalysis efficiency reaches the highest peak wavelength.This is because the luminous efficiency of UV light emitting diode.When the peak wavelength of UV light emitting diode reduces, the light launched from UV light emitting diode reduces rapidly.Therefore, in order to provide applicable UV irradiation level, it is use the surface with the photocatalytic filter 80 of the UV light emitting diode of low peak wavelength to need, and should use a large amount of UV light emitting diodes.But in this case, the increase of the size of substrate 55 is restricted, and due to the flowing of air, and cost increases sharply.In view of this fact is tested.The result of experiment shows, when use has the UV light emitting diode that peak wavelength is below 340nm, the odor removal efficient of photocatalytic filter 80 reduces rapidly.
And when use has the UV light emitting diode that peak wavelength is more than 380nm, the UV absorptivity of photochemical catalyst significantly reduces to the level being similar to conventional visible blue light, shows that the use of this UV light emitting diode is not so meaningful.
In addition, the result of experiment shows to have peak wavelength is the deodoriging properties that the use of the UV light emitting diode of 360-370nm can maximize photocatalytic filter 80.
Figure 19 is showing the figure that two have the acetaldehyde removing speed of the photocatalytic filter 80 of differing heights (h), and Figure 20 is showing the figure that two have the acetic acid removing speed of the photocatalytic filter 80 of differing heights (h).
The result of experiment shows, when photocatalytic filter 80 has the shape shown in Figure 15, the surface area of photochemical catalyst, its due to photocatalytic filter chamber between framework thickness (t) and increase, substantially the odor removal efficient of photocatalytic filter 80 can not be affected, but the height of photocatalytic filter 80 affects the inner wall area of interior air flow passage, therefore directly affect the contact area of air.
Therefore, can see, when the height of photocatalytic filter 80 is 5-10mm, the odor removal efficient of photocatalytic filter 80 is the highest.In addition, when highly reducing to below 2mm, photocatalytic filter 80 is difficult to use, because its faint intensity, and when being highly more than 15mm, only air drag increases, and UV light can not arrive the back part of photocatalytic filter 80 or its density becomes very thin, and therefore increase only cost and can not increase odor removal efficient.
Can see, when the width (g) in each chamber 83 is for 2mm, air drag can not increase, and the shaded area ratio having been blocked the inwall of the photocatalytic filter 80 that irradiation causes to its UV light by the shape of filter itself is not high, represent that the chamber width of 2mm is best suited for the UV light irradiated area ratio in the inwall maximizing photocatalytic filter 80.Meanwhile, when chamber width reduces to below 1mm, air drag increases, and the UV light quantity arriving inwall reduces, and shows that odor removal efficient is low.In addition, when chamber width is more than 4mm, the low entire area of inwall that causes of the density due to chamber 83 reduces, and shows that odor removal efficient is low.
About the chamber density relevant to the width (g) in above-mentioned each chamber, when chamber density lower than 30 chambeies/square inch or less time, chamber width is increased to more than 4mm, and inner wall area reduces, and shows that odor removal efficient is low.When the density in chamber is more than 260 chambeies/square inch, chamber width reduces to below 1mm, and air drag increases, and the UV light reaching inwall reduces, and shows that odor removal efficient is low.When chamber density is about 100 chambeies/square inch, air drag does not increase, and the shaded area ratio having been blocked the inwall of the filter that irradiation causes to its UV light by the shape of filter itself is not high, shows that odor removal efficient is the highest.
Experimental result about the frame thickness (t) in chamber shows, when frame thickness is below 0.3mm, and TiO 2layer becomes too thin, and therefore photocatalysis efficiency reduces, insufficient strength.When frame thickness is more than 1.2mm, but material consumption increases does not increase photocatalysis efficiency.In addition, when frame thickness is 0.6mm, photocatalysis efficiency is the highest.
Figure 21 is the figure of the deodoriging properties of display light catalytic filter 80, and it passes through 2gTiO 2to sinter and obtain for 1 hour, sintering temperature is different; Figure 22 is the figure of the deodoriging properties of display light catalytic filter 80, and it passes through 2.5g TiO 2sinter and obtain for 1 hour, sintering temperature is different; Be the figure of the deodoriging properties of display light catalytic filter 80 with Figure 23, it passes through 2.5g TiO at 400 DEG C 2sintering different time obtains, and sintering time is different.
As shown in figures 21-23, when sintering temperature is 350-450 DEG C, deodoriging properties is good, and when sintering time is that 1-2 is constantly little, the deodoriging properties of photocatalytic filter 80 is no problem.Can see, when considering the change of temperature, sintering temperature is 400 DEG C, if it is abundant not that sintering time is shorter than 1 hour sintering, if and when sintering time is oversize, the deodoriging properties of photocatalytic filter 80 can reduce instead of increase, and therefore sinters and preferably carries out 1-2 hour.
As mentioned above, be compact according to air purifier of the present utility model, power consumption is few, and has the remarkable ability that purifies air.
Be compact according to air purifier of the present utility model, collect at dust simultaneously, showed good result in deodorizing and sterilization.
There is according to air purifier of the present utility model the shape and compact size that are suitable for putting into glass stand, and there is the firmly internal structure being designed to provide this outer shape.
Dismantle in a simple manner decoupled according to air purifier of the present utility model, allow, with the mode separator-filter of most disassembled simply, to be convenient to maintenance and repair, and allow filter to be convenient to maintenance and repair.
The utility model blocks UV light irradiation to outside, because this reducing the misgivings about ultraviolet radiation.
The utility model provides for determining a compact position be effectively connected with complicated internal structure, and therefore air purifier of the present utility model is easy to manufacture, safeguard, repair and use.
In addition, allow external cable easily to replace according to shell structure of the present utility model, and prevent inside cable to deviate from or damaged.
Although described different embodiments, those skilled in the art should understand described embodiment only for example.Therefore, scope of the present utility model should not be limited to described embodiment.

Claims (10)

1. an air purifier, is characterized in that, described air purifier comprises:
Upper shell;
Lower house, the diameter of lower house is less than the diameter of described upper shell, and is arranged on the bottom of described upper shell; With
Inner shell, is fixed in described upper shell and lower house, makes inner shell and described upper shell and lower house spaced apart;
Wherein, the side on the top of described lower house has air-inlet grille, air is inhaled into described lower house by air-inlet grille, the bottom of described inner shell has air intlet, air circulation is crossed air intlet and is entered inner shell, and the top of inner shell has discharge portion, and air is discharged by discharge portion.
2. air purifier according to claim 1, is characterized in that, described air purifier comprises further: fan, is fixed on the lower end of described inner shell,
Wherein, described fan has discharge portion, be designed to air to discharge upwards enter described inner shell, and described inner shell comprises fan containing section and the streamlined diverging duct above fan containing section, and described streamlined diverging duct is designed so that the area of section that air flows increases gradually from discharge portion.
3. air purifier according to claim 2, is characterized in that, described inner shell comprises: the movement-oriented device above the discharge portion of described fan, is designed to oxygen diffusion to streamlined diverging duct.
4. air purifier according to claim 2, it is characterized in that, described air purifier comprises further: UV light emitting diode substrate, to be arranged on above streamlined diverging duct and to keep at a certain distance away with streamlined diverging duct, and arranging in the following manner: UV light emitting diode substrate tilts according to the streamline-shaped of streamlined diverging duct.
5. air purifier according to claim 2, is characterized in that, described fan has suction part, and suction part is formed in relative left side and right side, and described air-inlet grille is formed in the front of lower house.
6. air purifier according to claim 1, it is characterized in that, described lower house is made up of procapsid and back casing, and procapsid and back casing are separated from each other, and described procapsid is designed to: when described procapsid is separated, the carbon filter be arranged in air intlet is exposed to outside.
7. air purifier according to claim 6, is characterized in that, described inner shell is made up of left shell and right shell body, and left shell and right shell body are separated from each other.
8. air purifier according to claim 1, is characterized in that, the top of described inner shell comprises streamlined diverging duct, and described streamlined diverging duct is designed to air conductance to discharge portion.
9. air purifier according to claim 8, is characterized in that, described inner shell comprises: the PCB standing part above streamlined diverging duct, designed to be used fixing control PCB.
10. air purifier according to claim 9, it is characterized in that, described air purifier comprises further: top shell, is fixed to the top of PCB standing part, and be designed to Coverage Control PCB, and the outer peripheral lower end of top shell is connected with the upper end of upper shell.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105987444A (en) * 2014-11-06 2016-10-05 首尔伟傲世有限公司 A compact air cleaner using a UV light emitting diode and a photocatalytic filter
US10517980B2 (en) 2014-11-06 2019-12-31 Seoul Viosys Co., Ltd. Compact air cleaner using UV LED and photocatalytic filter
US20220062822A1 (en) * 2020-01-17 2022-03-03 Molekule Inc. Fluid filtration system and method of use

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KR102428746B1 (en) * 2019-08-22 2022-08-04 주식회사 청우씨엔티 Air cleaner for vehicle

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CN2588264Y (en) * 2002-11-06 2003-11-26 欧阳伟 Air purifying device capable of multi-directional air supply
GB2458162A (en) * 2008-03-07 2009-09-09 Reckitt Benckiser Air cleaner
KR20120040513A (en) * 2010-10-19 2012-04-27 엘지이노텍 주식회사 Humidifier having uv led
CN202973375U (en) * 2012-12-19 2013-06-05 上海工程技术大学 Novel air purifier
KR101320703B1 (en) * 2013-01-21 2013-10-21 서효명 Multi-functional ventilating unit
KR20160054733A (en) * 2014-11-06 2016-05-17 서울바이오시스 주식회사 A Compact Air Cleaner Using UV LED and Photocatalytic Filter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105987444A (en) * 2014-11-06 2016-10-05 首尔伟傲世有限公司 A compact air cleaner using a UV light emitting diode and a photocatalytic filter
CN105987444B (en) * 2014-11-06 2019-08-09 首尔伟傲世有限公司 Compact air purifier including UV light emitting diode and photocatalytic filter
US10517980B2 (en) 2014-11-06 2019-12-31 Seoul Viosys Co., Ltd. Compact air cleaner using UV LED and photocatalytic filter
US20220062822A1 (en) * 2020-01-17 2022-03-03 Molekule Inc. Fluid filtration system and method of use

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