CN105987445A - A compact air cleaner using a UV light emitting diode and a photocatalytic filter - Google Patents

Abstract

A compact air cleaner using a UV light emitting diode and a photocatalytic filter is disclosed. The air cleaner comprises an inner shell which is provided with an inner space extending vertically, with an air inlet being formed in the lower part of the inner shell and an air discharging part being formed in the upper part of the inner shell, a control PCB disposed on a PCB fixing part at the upper part of the inner shell, a fan disposed in a fan storage part in the lower part of the inner shell and designed to push outer air into the inner shell, and a UV light emitting diode substrate disposed at a preset position in the inner shell and provided with a UV light emitting diode designed to radiate UV light and inner cables. The air cleaner is compact in structure so that the air cleaner can be mounted in a cup holder of an automobile, can be used for removing odor, collecting dust and sterilizing, and is convenient in maintenance and repair.

Description

Including UV light emitting diode and the compact air purifier of photocatalytic filter

Technical field

The present invention relates to a kind of air purifier, and more specifically it relates to a kind of such air purifier: It is such compact make its glass stand that may be mounted at vehicle in, it is possible to deodorization effectively, collect ash Dirt and sterilization, and allow to change in a simple manner decoupled filter.

Background technology

Titanium dioxide (TiO₂) there is in its substrate covered high tack, and when light can be caused to excite Light (mainly ultraviolet light) when being applied on it, it is shown that photocatalytic activity.

Especially, the light-catalyzed reaction of titanium dioxide is effective for the most antibacterial and deodorization aspect, and because of This is frequently used in air cleaning.Such as, a kind of method purifying air, wherein, when air passes through light During catalytic filter, use UV photoirradiation TiO₂Photocatalytic filter (the TiO covered₂Ceramic foam filter Device) cause light-catalyzed reaction, this is a kind of at the air purification method being widely used in recent years.

Titanium dioxide is not single use, but generally uses in suprabasil state to cover.Therefore, The shape of the photocatalyst of covering titanium dioxide determines generally according to the shape of substrate.

The deodorization using titanium dioxide has been 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 big photocatalytic filter, large-size air conditioning has high sky Flow of air speed and area and its performance deodorizing effect are the most especially difficult.

But, in the case of small size air cleaner, the size quilt of photocatalytic filter and UV generator Limit, and speed air flow also reduces.Therefore, in the urgent need to developing such air purifier, its Under small light catalytic filter and UV generator, even also show that certain level or higher deodorization Energy.Especially, in Household Air Purifier, noise and energy consumption will be thought over.But, In prior art, the development of air purifier concentrates on medium-sized and large-size air conditioning, and for this reason that, The technology being applicable to new environment (such as family) remains inadequate.

If filtered with the photocatalysis of strong UV photoirradiation small size air cleaner for reinforced effects Device, then the effect of photocatalytic filter can not be guaranteed, and by the region of strong UV photoirradiation Material meeting rapid degradation or energy consumption will excessively increase.It addition, install the UV light-emitting diodes of the quantity increased The short life of pipe and UV light emitting diode will cause the increase of expense.

Further, although can also expect to use and there is peak wavelength be about the UV luminescence two of 270nm Pole is managed, it is known that most UV light by Titanium dioxide absorption, can increase the efficiency of air purifier, but The deodorization effect that the use of the UV light emitting diode with peak wavelength about 270nm shows can not be said Really, because making from the UV light ratio significantly of the peak wavelength about 270nm of UV light emitting diode transmitting Power with the UV light that peak wavelength is other values is faint.

It addition, carried out new research in terms of to the shape of photocatalytic filter or size, it even exists The effect of enhancing can be demonstrated under little size, and have with the photocatalytic filter with UV light source Close.The shape of photocatalytic filter or size demonstrate have close ties with air drag, and permissible Specifications and characteristics for the fan of small size air cleaner must be defined.For this reason, for For the normal function of small-sized air purifier, make by reducing the air drag in air purifier Flow of air held stationary of having leisure is important.

In addition, it is necessary to the method that photocatalytic filter is prepared in development, it can strengthen photocatalytic filter certainly The activation effect of body.Need not speak more, a kind of photocatalytic filter even by low capacity obtains height The technology of deodorizing effect be the technology that needs most in the technical field relevant to small size air cleaner it One.

Additionally, when using UV light emitting diode and photocatalytic filter to prepare compact air purifier, Fan and putting in order of different filters also to be thought over.According to the medium-sized of prior art and In large-size air conditioning, first dust is collected by dust collecting filter, and then passes through photocatalytic filter Implement deodorization.Here, filter is the biggest factor reducing air flow pressure, and is therefore not difficult to find out , when photocatalytic filter is used for small size air cleaner, it would indicate that in being used for it Function same in type or large-size air conditioning.

In addition, it is necessary to the malignant bacteria entrained by air in capture man.Even remove for filtration always The HEPA filter of antibacterial is the filter significantly slowing air flowing, and for this reason that, it is difficult In using in small size air cleaner.If the installation of HEPA causes what air flowed significantly to slow down, then Otherwise it can affect the deodorization functions of photocatalytic filter.For this reason, it may be necessary to find another kind of device, do not having In the case of having the air flowing significantly intervened in air purifier, it can bacteria removal effectively.

Especially, the inner space of vehicle that the abnormal smells from the patient of smoke from cigarette is difficult to clean up wherein is that urgent need has The air purifier of high odor removal efficient.Because inner space of vehicle is the narrowest and small, so it needs to occupy Little space or the air purifier not taken up space, have the ability significantly purifying air simultaneously.Especially Ground, because the frequent vibration of automobile, so air purifier should so design so that even if at automobile Inside, it may remain on fixing position, and can install in a straightforward manner.Especially, Air purifier for automobile is provided as accessory by most motor corporations, and the problem therefore brought is The air purifier used on a kind of automobile cannot be used for other automobiles.Therefore, clean with automobile air Change in the technical field that device is relevant, portable air purifier is had high demand.

If it addition, air purifier is difficult to maintenance and repair or is difficult to make, then since it is considered that its merit Can, its marketability is lowered, and its user will feel that not convenient.Accordingly, it would be desirable to tool There is the air purifier of simple structure, and it should be easy to manufacture and be easy to maintenance and repair.

Summary of the invention

The present invention makes to solve the problems referred to above of the prior art, and it is an object of the invention to In order to manufacture use UV light emitting diode and the air purifier of photocatalytic filter, and determine UV spoke Illumination, the peak wavelength of UV light emitting diode and input power, the shape of photocatalytic filter, specification, Relation between size and material, processing method and UV light emitting diode and photocatalytic filter, these The odor removal efficient of air purifier can be strengthened.

Another aspect provides a kind of there is high deodorization, dust is collected and germicidal efficiency compact Type air purifier.

Another aspect provides a kind of air purifier, it is compact so that it is permissible In automobile, and inner space of vehicle can be fixed in a straightforward manner.

Another aspect provides a kind of air purifier, it has maximized purification air energy Power, energy consumption is less, and noise level is low.

It is another object of the present invention to provide a kind of greater compactness of air purifier, it has complexity But internal structure of a tightly knit structure.

To achieve these goals, the invention provides a kind of air purifier to include: be arranged on UV luminous The UV light emitting diode for photo catalytic activation on diode substrate；And photocatalytic filter, it is arranged For spaced apart with described UV light emitting diode substrate, and in the face of the UV luminescence two for photo catalytic activation Pole is managed, and wherein, described air purifier has following technical characteristic.

Described photocatalytic filter includes covering at suprabasil TiO₂。

The UV irradiance detected on the surface of UV light emitting diode at described photocatalytic filter For 10-20mW/cm², and preferably 14-15mW/cm²。

There is the peak value of 340-380nm from the UV light of the UV light emitting diode transmitting for photo catalytic activation Wavelength, and preferably 360-370nm.

Be applied to the electric energy of the UV light emitting diode for photo catalytic activation have 5-15V voltage and The electric current of 200-300mA.

Described photocatalytic filter includes multiple neighbouring parallel chamber, described chamber define in the face of for Air flowing access on the direction of the UV light emitting diode of photo catalytic activation, and described photocatalytic filter Height be 2-15mm, and preferably 5-10mm.

When in terms of air-flow direction, chamber be shaped as square.

The thickness (t) of the framework between chamber is 0.3-1.2mm, and preferably 0.5-0.7mm.

The width in each chamber is 1-4mm, and preferably 1.8-2.2mm.

The density in chamber is 30-260 chamber/square inch, and preferably 80-120 chamber/square inch.

Substrate is made up of porous ceramic film material.

Photocatalytic filter will be by covering at suprabasil TiO₂Sinter 1-2 hour at 350-450 DEG C Prepare.

Described air purifier is designed to air from UV light emitting diode substrate to photocatalytic filter stream Dynamic.

Described air purifier farther includes: UV reflecting plate, is arranged on and between UV light emitting diode On the lateral parts that part between substrate and photocatalytic filter is relevant.

When the direction viewing flowed from air, the described surface of photocatalytic filter generally circular in shape or Square.

The area on the described surface of photocatalytic filter is 4²-7²cm², and for the UV of photo catalytic activation Spacing between light emitting diode and the described surface of photocatalytic filter is 2-3cm.Preferably, light is urged The area on the described surface changing filter is 5.3²-2.7²cm², and for the UV luminescence two of photo catalytic activation Spacing between pole pipe and the described surface of photocatalytic filter is 2-3cm.

UV light emitting diode for sterilization is designed to irradiation and has the UV light of germicidal wavelength, UV irradiation Direction is identical with the UV irradiation direction of the UV light emitting diode for photo catalytic activation, for the UV of sterilization Light emitting diode is arranged on UV light emitting diode substrate.

Described air purifier farther includes: dust collecting filter, is arranged on photocatalytic filter Rear side.

UV light emitting diode substrate and photocatalytic filter are arranged in the inner shell of air flowing, with this The mode of sample is arranged: photocatalytic filter is disposed adjacent to the inwall of a part for inner shell, its tool There is relatively large area of section, and UV light emitting diode substrate is arranged to the part with inner shell Spaced apart from inner walls, it has relatively small area of section.

Described air purifier includes the upper shell with relatively large size and has relatively small size Lower house, and lower house is arranged on the bottom of upper shell.There is the inner shell of the vertically inner space of extension Body is fixed in upper shell and lower house by this way so that it is spaced apart with upper shell and lower house: A part with relatively large cross-sectional area for inner shell is arranged in upper shell, and inner shell A part with relatively small cross-sectional area for body is arranged in lower house.The upper end of lower house is extremely Few side has air-inlet grille, is aspirated in lower house by air-inlet grille extraneous air.

The air intlet formed in the bottom of inner shell is arranged at less than the height of air-inlet grille, and The lower house corresponding with the vertical portion between air-inlet grille and air intlet and the part of inner shell that This is positioned apart from.

The UV light emitting diode substrate that described air purifier farther includes to be arranged in inner shell The fan of upstream.

Fan is designed to promote extraneous air to enter inner shell, and it is fixedly mounted in inner shell The fan containing section of the bottom of body.Fan has the pumping unit being formed at opposite side, and it transversely prolongs Stretch, and air intlet is formed at the opposite side of fan containing section, and air-inlet grille is formed at lower house Front.

Inner shell is made up of two separate parts: left shell and right shell body.

Described air purifier farther includes the carbon filter being arranged in air intlet.

Lower house is made up of two separate parts: procapsid and back casing.Procapsid is designed to currently The when that housing being for separating, carbon filter is exposed to outside.

Described air purifier further includes at the pair of parallel end difference that air intlet is formed about Part, and the housing of carbon filter is assemblied between ladder parts.

The inner shell being spaced and lower house are connected to each other by being formed at the screwed part of 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 includes prefilter, and activated carbon is incorporated in the housing of carbon filter.

The housing of carbon filter has the elaxtic seal being connected with housing, to stop air to flow into carbon In space between housing and the ladder parts of filter.

Fan has discharge portion, and discharge portion is designed to discharge air be upwardly into inner shell, And inner shell is included in the streamlined diverging duct above fan containing section, it is designed so that air The area of section of flowing starts to incrementally increase from discharge part.

Inner shell is included in the direct fluid device discharging upper of fan, is designed to expand air It is scattered to streamlined diverging duct.

UV light emitting diode substrate above streamlined diverging duct at a certain distance from by this way Arrange: UV light emitting diode substrate tilts according to the streamline shape of streamlined diverging duct.

The height that photocatalytic filter and dust collecting filter are arranged in inner shell and upper shell Height correlation so that photocatalytic filter and dust collecting filter from inner shell are on direction, side Telescopic.

Described photocatalytic filter includes catalyst member and the elastic buffer covered around catalyst member Device.

Photocatalytic filter containing section has the opening portion of the two side portions exposing photocatalytic filter, It extends from the front surface of photocatalytic filter.

Described dust collecting filter includes: for collecting the filter component of dust；Accommodate filter portion The framework of part, is designed to be fixed on inner shell or by filter component from inside filter component Housing is extracted out；With the handle being formed on framework front.

Inner shell includes: is arranged on the discharge portion in photocatalytic filter downstream, is designed to air Discharge from inner shell.

Inner shell includes: streamlined diverging duct, is designed to guide air to flow to discharge portion.

Inner shell includes: 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 includes: the PCB standing part above streamlined transmitting pipeline, is designed to fix Control PCB.

Described air purifier includes: is fixed on the top shell on the top of PCB standing part, is designed For Coverage Control PCB and discharge portion, and it is fixed to the upper end of inner shell.Fix at upper shell When the top of inner 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 connect with discharge portion.

Top shell has button, is designed to ON/OFF and controls PCB.

Described air purifier includes: inside cable, is designed to control and delivers power to fan from PCB With UV light emitting diode substrate and control fan and UV light emitting diode substrate.Inside cable is from control PCB stretches out, and is in close contact with the outside of inner shell, and then passes through and be formed at fan incorporating section Inside cable through hole in point enters the inner space of inner shell.

The inside cable of the inner space extending into inner shell by inside cable through hole is connected to wind Fan, and further along the inner space extension of inner shell, it is thus 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.

Controlling PCB and have electric energy input connector, electric energy input connector exposes to the right, enabling Along direction to the left, connector device is fitted on electric energy input connector, or electric energy input connector is to the left Side exposes, enabling connector device is fitted on electric energy input connector along direction to the right.

Upper shell includes the end difference that cylindric side part and the lower end from cylindric side part extend internally Point.Lower house includes cylindric side part, its diameter less than the diameter of upper shell, and therefore upper shell with Such mode is fixed to the top of lower house: wherein, upper shell move from lower house bottom up and Arrange around lower house.

The stepped portion of upper shell has by hole, and the stepped portion of lower house has opening portion.Outward Portion's cable extends to outside by mate each other by the space between hole and opening portion.

The inside of upper shell has locking projections, and it has circumferential angled surfaces, and the top of inner shell Outer surface have: protruding holding tank, be positioned corresponding to the position of described locking projections；Protruding fixing groove, It is disposed adjacent to protruding holding tank；It is protruding that protruding holding tank and projection fix the click feel between groove.

Protruding holding tank has the shape that bottom is open, and protruding fixing groove has the shape of bottom lock. Locking projections within upper shell is designed to: move up to be assembled to protruding appearance along protruding holding tank Receive groove, and then to a side shifting and to get over click feel protruding to be assembled to protruding fixing groove, by this Upper shell is fixed to inner shell by sample.

The stepped portion formed in the upper end of lower house has depression, when upper shell is along the outside of lower house When moving up or down, locking projections can pass through this depression.Depression is just being formed at protruding holding tank Lower section.

The end of external cable have "" shape terminal.

Described air purifier can obtain one or more in following technique effect: compact conformation, So that it can be assemblied in the glass stand of automobile；May be used for deodorization, dust is collected and sterilization, and is increased The strong odor removal efficient of air purifier, germicidal efficiency；Having maximized purification ability of air, energy consumption is more Little, and noise level is low；It is easy to maintenance and repair.

Accompanying drawing explanation

Fig. 1 is the perspective view of the air purifier according to the present invention.

Fig. 2 is the decomposition diagram of the air purifier shown in Fig. 1.

Fig. 3 to Fig. 5 is the perspective view of the assembling process showing the parts shown in Fig. 2；

Fig. 6 is the perspective top view of the upper shell according to the present invention.

Fig. 7 to Figure 10 is for separate shell (upper shell, lower house and top shell) and to separate carbon mistake The perspective view of the inner shell seen from all directions after filter.

Figure 11 is the perspective view of the air purifier of the present invention having separated upper shell and procapsid.

Figure 12 is the perspective view of the air purifier according to the present invention, itself in the state in which, Qi Zhongding Portion's housing, upper shell, back casing and left shell are omitted.

Figure 13 is the perspective view of the air purifier according to the present invention, itself in the state in which, Qi Zhongding Portion's housing, 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 UV light in the front arriving photocatalytic filter The function of irradiance.

Figure 17 is showing the figure of the UV absorbance of photocatalytic filter, and it is the function of UV wavelength.

Figure 18 is to show the figure of the removing speed of 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 under different sintering temperatures 2g TiO₂Within 1 hour, obtain.

Figure 22 is showing the figure of the deodoriging properties of photocatalytic filter, by sintering under different sintering temperatures 2.5g TiO₂Within 1 hour, obtain.

Figure 23 is showing the figure of the deodoriging properties of photocatalytic filter, by under different sintering times in 400 DEG C of sintering 2.5g TiO₂Obtain.

Detailed description of the invention

Below with reference to the accompanying drawings exemplary embodiment is described in detail.But disclosure of the invention is by body Now for multi-form and should not be regarded as being limited to embodiments shown herein.But, these embodiments Offer to make the present invention open will be comprehensive and complete, and will be fully to those skilled in the art Pass on the scope of the present invention.

For those skilled in the art, if it is necessary to the structure of any one embodiment stated herein Can be applied to or replace those parts in other embodiments with parts, or be omitted, or miscellaneous part There can be added to.

Hereinafter, with reference to accompanying drawing, the preferred embodiments of the present invention will be described in detail.

The outward appearance of air purifier

With reference to Fig. 1, it is the perspective view of the air purifier according to the present invention, described air purifier bag Include: there is the upper shell 10 of relatively large diameter, there is the diameter more smaller than the diameter of upper shell 10 Lower house 20 and be arranged on the top shell 40 at top of upper shell 10.

Core at top shell 40 is provided with two buttons 41, and button 41 includes: ON/OFF is pressed Button, it is allowed to open and close air purifier；Blast velocity control button, controls the air in air purifier Stream (wind speed).It addition, be provided with two lamps 42, lamp 42 allow visually to check the opening of air purifier/ Off status and wind speed.Air purifier can be manipulated by, such as, by press several seconds of on/off button with Beat opening/closing air purifier, and press blast velocity control button with controlled wind speed.

In the side of top shell 40, being provided with air discharge grille 43, the air after being purified by it is arranged Go out.Therefore, the air after purification is discharged by air discharge grille 43, and big foreign substance is by grid 43 stop, and therefore it be prevented from entering air purifier.

The diameter of upper shell 10 is more than the diameter of lower house 20.The diameter of upper shell 10 is preferably more than vapour The upper end of car glass stand, so when air purifier is mounted in glass stand, it can not be inserted into automobile Glass stand.

Lower house 20 is made up of two separate parts: procapsid 21 and back casing 22.Air-inlet grille 212 It 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 will be by air The structure arranged in depurator purifies, and then will pass through the row of top shell 40 in air purifier Gas grid 43 flows out.

The design of air purifier and attachment structure

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 assembling Fig. 2.Upper shell 10 is displayed on the reason of the bottom of Fig. 2-5 It is that upper shell 10 has such a structure that it moves to top with locked from the bottom of air purifier.

As it is shown in figure 1, upper shell 10, lower house 20 and top shell 40 constitute air purifier Shape, and as in figure 2 it is shown, inner shell 30 is arranged on wherein.Inner shell 30 with constitute outside The upper shell 10 of portion's housing, lower house 20 and top shell 40 combine, to firmly fix external shell.

As shown in drawings, inner shell 30 is made up of two separate parts: left shell 31 and right shell body 32.Inner shell 30 is divided into the direction of two separate parts and is divided into fore shell in lower house 20 The direction of body 21 and back casing 22 is at a right angle.When external shell lower house 20 segmentation direction with as above During the segmentation direction difference of described inner shell 30, shell structure can more firmly be connected to each other.

Being provided with PCB standing part 33 in the upper shell of inner shell 30, it is arranged so that, Make to control PCB 51 and will not cover discharge portion 34, the internally positioned housing of discharge portion 34 30 upper The side of end.It addition, exist by being formed at the streamlined diverging duct 382 below PCB standing part 33 Space is provided in PCB standing part 33.As described below, in order to guide inflow inner shell 30 Air arrive discharge portion 34, streamlined diverging duct 382 is formed at the top of inner shell 30. When PCB standing part 33 is arranged on by when being formed in the space that diverging duct provides, air purifier interior Space, portion can be effectively utilised.

The right side of the inner shell 30 being provided with PCB standing part 33 wherein defines external cable and leads to Hole 322, external cable can be connected to control PCB 51 by external cable through hole 322, and in left side Define inside cable and pass through hole 312, by inside cable by hole 312 electric energy by from controlling PCB 51 It is applied to fan 60 and UV light emitting diode substrate 55, as described below.

In the air flow duct structure formed by inner shell 30, the most adjacent Near-earth is provided with dust collecting filter 90 and photocatalytic filter 80, as shown in the figure.In photocatalysis Below filter 80, UV light emitting diode substrate 55 is fixed on photocatalytic filter 80 at a distance of certain Distance.UV light emitting diode on UV light emitting diode substrate 55 is by towards photocatalytic filter 80 Arrange.

Dust collecting filter 90 and photocatalytic filter 80 have fully blocked air flow duct structure, So air of flow ipe must pass through photocatalytic filter 80 and dust collecting filter 90.Separately On the one hand, UV light emitting diode substrate 55 is arranged on substrate standing part 303, and it is from inner shell The inwall of body 30 is the most protruding, by this way its spaced apart from inner walls with inner shell 30, this Sample air flow is by the space between them.As mentioned below, at UV light emitting diode substrate The core of 55, has the light emitting diode that peak wavelength is 275nm and is provided for sterilization, And around described UV light emitting diode, there are three UV light emitting diodes that peak wavelength is 365nm It is disposed radially around activating photocatalytic filter 80.

It should be noted that dust collecting filter 90 and photocatalytic filter 80 have and can pull out forward Structure to change.Because these filters by the direction (front) of pull not with as above outside The direction that portion's cable (right) and inside cable (left) are arranged is overlapping, when the filters are changed, and cable It is not required to be separated.

Be provided with fan containing section 301 in the bottom of inner shell 30, fan 60 is contained and fixes In wherein, and it is formed with air intlet 302 in the left side of fan containing section 301 and right side, by fan 60 air sucked flow into fan containing section 301 by air intlet 302.

Fan 60 in the air purifier of the present invention has such a structure that even at narrow sky In, it can also effectively produce air stream.As it can be seen, at the core of fan 60, formed The suction part 61 that twocouese is open.By the rotation of impeller, the sky introduced by suction part 61 Gas is discharged into the discharge portion 63 of the top being formed at suction part 61 consumingly.

Discharge portion 63 in inner shell 30 be provided above movement-oriented device 37, it is designed For: the air stream discharged from the discharge portion 63 with stenosed section is disperseed widely.Including it addition, The bottom of portion's housing 30 defines streamlined diverging duct 381, and it is as being discharged by discharge portion 63 Air stream another element the most scattered.Movement-oriented device 37 as above and streamlined transmitting pipeline 381 can draw airflow guiding naturally, the air stream simultaneously discharged at a high speed by narrow discharge portion 63 Kinetic energy rejection minimizes.

It is provided with plate frame round the air intlet 302 formed in the bottom of inner shell 30, and The top of plate frame and bottom define the ladder parts 305 of longitudinal extension.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 Including the housing 71 for keeping carbon filter 70 shape be arranged in the open portion of housing 71 both sides Prefilter 72 (in the face of side and its opposite side of air intlet 302).

The function of prefilter 72 is to filter dust, stops that the activated carbon being accommodated in housing (does not shows simultaneously Go out) flow out in housing 71.

The function of the activated carbon in carbon filter 70 is absorption and the stink granule removed in air.Work as activity When the number of times that charcoal uses increases, its absorbability declines, and the regeneration of activated carbon is highly difficult.To this end, In the present invention, for the ease of the replacing of carbon filter 70, it is provided with and can connect and dismountable structure.

As described above, it is provided with flat board member, and ladder parts 305 around air intlet 302 It is arranged on its top and bottom.The width of carbon filter 70 is equal or slightly larger than two ladder parts 305 Between distance (when the square that is shaped as of carbon filter 70, described width is a foursquare side Long).Therefore, each in two carbon filters 70 can be arranged on the left side of lower end for inner shell 30 Side and right side, by the top of carbon filter 70 and bottom are assemblied between two ladder parts without Use single integrated structure.

As it can be seen, the housing 71 around carbon filter 70 is provided with elaxtic seal 73, to stop Air flows into the housing 71 of carbon filter 70 and around the space between the plate frame of air intlet 302.

As it can be seen, carbon filter 70 has trapezoidal cross-section, the side of its maximum and inner shell 30 Contact, and become narrow gradually towards opposition side.As shown in Figure 4, the inclination of the marginal portion of carbon filter 70 Shape, it is formed by this structure, is meshed with the circle of screwed part 306, with by inner shell 30 are connected with back casing 22.By this structure, carbon filter 70 engages with screwed part 306, and Direction towards inner shell 30 is supported.

About the attachment structure between housing, two separate sections of inner shell 30 first pass through screw thread etc. It is connected to each other, in the state in which under, wherein fan 60 and UV light emitting diode substrate 55 is fixed Either side to inner shell 30.In a preferred embodiment of the invention, fan 60 and UV light-emitting diodes At the bottom of tube lining, 55 are fixed to left shell 31, and it has been internally formed inside cable and has passed through hole 312, and passes through hole 312 are covered by right shell body 32, are connected to each other by two inner housing part whereby, control PCB because connecting 51 and the inside cable of fan 60 and UV light emitting diode substrate 55 will be through inside cable by hole 312 It is arranged in left shell 31.

Then, as shown in Figure 4, control PCB 51 and be fixed to the top of inner shell 30 by screw thread etc. Substrate standing part 303, and dust collecting filter 90 and photocatalytic filter 80 be respectively inserted In dust collecting filter containing section 35 and photocatalytic filter containing section 36.

It follows that as it is shown in figure 5, back casing 22 by screw thread (as shown in Figure 4 be formed at back casing In screw-like channels and the screwed part 306 of inner shell) be fixed to the bottom of inner shell 30, and Procapsid 21 is connected to back casing 22, so that lower house 20 to be fixed to inner shell 30, and top whereby Housing 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 such as figure Being locked shown in 1, obtains device whereby.

Relation between shell structure and the filter replacement structure of air purifier

In the present invention, when procapsid 21 is connected and is connected when upper shell 10, procapsid 21 Can be firmly attached successively with upper shell 10, without using screw thread, unlike other housings are connected. According to the present invention, upper shell 10 can separation as shown in Figure 5, it is not necessary to use separating tool.Upper After housing 10 separates, procapsid 21 is separated with can not also using separating tool.

Hereinafter, by explaination procapsid 21 and the attachment structure of upper shell 10.

Fig. 6 is the perspective view of the upper shell 10 of the present invention.Upper shell 10 includes cylindric side part 11, The stepped portion 12 extended internally with the bottom from cylindric side part 11.Limited by stepped portion 12 Internal diameter is equal or slightly larger than the diameter of lower house 20, and such upper shell 10 can be around outside lower house 20 Side is assembled, and moves 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 includes: cylindric side part 211,221, has the internal diameter less than upper shell 10； Stepped portion 213,223, is respectively formed in the top of cylindric side part 211,221；With ladder side Part 214,224, the end from stepped portion 213,223 upwardly extends respectively.Ladder side part 214, The diameter of 224 is equal to or slightly less than the internal diameter of cylindric side part 11.The stepped portion 213 of lower house 20, Stepped portion 12 with upper shell 10 is connected by 223, when upper shell 10 is along the appearance of lower house 20 When face moves up, limit moving upward of upper shell 10 whereby.At upper shell 10 as above The confined height that moves upward at, 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. In the front stepped portion 213 and front ladder side part 214 of procapsid 21, with locking projections 14 phase Corresponding position defines depression 216, and in the rear stepped portion 223 of back casing 22, with location Protruding 15 corresponding positions define locating slot 226.

Therefore, when upper shell 10 assembles around the outside of lower house 20 and moves, if only in locking Protruding 14 and positioning convex 15 be respectively aligned to cave in 216 and during locating slot 226, upper shell 10 can be complete Complete is moved upwards up to latched position.

Meanwhile, as shown in Figure 8, in the side of inner shell 30, protruding holding tank 316 and projection are fixed Groove 317 is formed adjacent to each other.Protruding holding tank 316 and projection are fixed groove 317 and are respectively provided with and lock Protruding 14 corresponding shapes.But, protruding holding tank 316 has the shape that bottom is open, and protruding Fixing groove 317 has the shape of bottom lock.Fix between groove 317 at protruding holding tank 316 and projection Define click feel protruding.

As above, it is respectively aligned to cave in 216 and locating slot when locking projections 14 and positioning convex 15 When 226, and when upper shell 10 is moved upwards up to latched position completely, by protruding holding tank 316 Bottom opening shape after, the locking projections 14 being formed in upper shell 10 is accommodated in protruding receiving In groove 316.Under this state, when upper shell 10 rotates, the inclined plane of such locking projections 14 (see Fig. 6) get over the click feel between protruding holding tank 316 and protruding locating slot 317 protruding, lock tab Play 14 and be fixed to protruding fixing groove 317, the most fully secure upper shell 10.

Under this state, upper shell 10 move up through top shell 40 and stepped portion 213, 223 are limited, and rotating of upper shell 10 is fixed the left and right side of groove 316 by projection and wall limits.Separately Outward, moving downward of upper shell 10 is fixed the bottom of groove 317 by the projection securing locking projections 14 and is sealed Close shape to limit.

When upper shell 10 as described above by fixing time, procapsid 21 is also by upper shell 10 and back casing 22 limit.Particularly because upper shell 10 is fixed to cover lower house 20, so procapsid 21 Can also be securely held, it is not necessary to use single screw thread.But, because upper shell 10 only covers The top of lower house 20, procapsid 21 can sufficiently keep fixedly securing state, if procapsid 21 Bottom have a structure in which, its bottom with back casing 22 combines in snap-fastener mode etc..

Meanwhile, in upper shell 10, in the position shape corresponding with the opening portion 215 of procapsid 21 Become by hole 13.It is dimensioned such that by hole 13 so that external cable can pass it, and Opening portion 215 is dimensioned such that so that external cable can pass it, simultaneously upper shell 10 Locking projections 14 can be fixed at protruding holding tank 316 and projection and be rotated between groove 317, that is, and and opening The size of part 215 can be more longer than by the size in hole 13.

Such as Fig. 5, opening 215 is arranged on the side of right shell body 32, wherein lower house with such state 20 are connected to inner shell 30.Its function is present to ensure that the path of the motion of external cable, and outside Cable can be connected to control the electric energy input connector 512 of PCB 51 by external cable through hole 322, And then can be threaded through hole 13 and opening portion 215, through right shell body 32 and upper shell 10 Space and extend to outside.

Electric energy input connector 512 can be made up of socket, and the terminal (not shown) of external cable can be inserted into In socket.The reason of use terminal socket structure is the replacing of external cable for convenience.Such as, when this When the air purifier of invention is used for automobile, it is possible to use 12V direct-flow cigar lighter socket, but when sky When gas purifier is used in family or office, 110V or 220V alternating current can be used.Therefore, more The probability changing external cable is the highest, and for this reason, external cable is preferably used terminal and inserts Holder structure is connected to control PCB 51.

It should be noted that the direction that the direction that terminal inserts is drawn out with external cable is vertical.In other words, The terminal of external cable inserts (horizontal direction) with diametric(al), and the direction that is drawn out of external cable for Lower direction.For this reason, if the terminal of external cable be "" shape, upper shell 10 Internal meeting support terminals on the direction that terminal connects, and therefore even external cable is pulled from outside, It is also possible to prevent external cable abjection.

Upper shell 10 and procapsid 21 are designed to the reason of described attachment structure and are able to only pass through Separate upper shell 10 and change the dust collecting filter 90 of air purifier 90 without using separation Instrument.Especially, with the order that above-mentioned locking means is contrary, upper shell 10 is reversed rotation, so locks Fixed protruding 14 fix groove 317 from projection, protruding by click feel and return to protruding holding tank 316.Under this state, upper shell 10 is downwardly drawn out, as shown in Figure 5.Under this state, as attached Shown in figure, the part that dust collecting filter 90 inserts is exposed.Therefore, if only upper shell 10 Being 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, As shown in Figure 10, and under this state, only the filter component 93 in framework 91 can be replaced.

It addition, after upper shell 10 is separated as above, procapsid 21 can be by from back casing Dismantle on 22, it is not necessary to use separating tool.Therefore, as shown in figure 11, from the portion of inner shell 30 Changing photocatalytic filter 80 in point and carbon filter 70 is possible, this part is by dismounting procapsid 21 and expose.

Fig. 7-10 is that all of external shell (upper shell, lower house and top shell) is separated and carbon filters The perspective view of the inner shell 30 that device is observed after separating from several directions, and Figure 11 is this Bright air purifier is in the perspective view under the state that only upper shell 10 and procapsid 21 are separated.

About the inner shell 30 of the air purifier of the present invention, the front side of inner shell 30 has so Facad structure, it allows all of dust collecting filter 90, photocatalytic filter 80 and carbon to filter Device 70 is inserted into and pulls out.Therefore, after upper shell 10 is separated, dust collecting filter 90 can By pulling the handle of dust collecting filter 90 to change in the front of the exposure of inner shell 30.? After procapsid 21 is separated, the photocatalytic filter 80 in the front of the exposure of internally positioned housing 30 is permissible It is 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 bases₂Obtain.Therefore, elastic slow Rush device 82 to be provided to surround catalyst member 81, do not impacted with guard catalyst part 81, and And allow catalyst member 81 and inner shell 30 tightly attached to each other.

TiO₂The problem of the photocatalytic filter 80 covered is that photocatalysis efficiency reduces in time, because outward Carry out material to adhere in its surface.Despite the presence of this problem, filter will not frequently be changed, be because It expensive.Therefore, relevant to the regeneration of filter technology is developed constantly.Therefore, Optical catalyst filter 80 needs to install/and dismountable structure is for changing or regenerating.But, because Photocatalytic filter 80 has a structure in which, wherein elastic buffer 82 as above is around catalysis Agent part 81 covers, and forms a handle installing or removing photocatalytic filter 80 from inner shell 30, Just as dust collecting filter 90, this is thorny.To this end, in the present invention, such as Fig. 7-11 Shown in, inner shell 30 only procapsid 21 is nonopen, but the front extended from front side and side The part in face, when photocatalytic filter 80 is inserted into inner shell 30, is all made light urge by opening A part for the front surface and side of changing filter 80 can be exposed.Due to the shape of inner shell 30, The both sides of photocatalytic filter 80 can be held by hand tightly, and therefore photocatalytic filter 80 is easily pulled out.

Electric connection structure in air purifier

With reference to Fig. 8, on the surface of the left shell 31 of the air purifier according to the present invention, sequentially form Inside cable is by hole 312, inside cable groove 313 and inside cable guiding groove 314.It addition, it is interior Portion's 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 power to fan 60 and UV light emitting diode substrate 55 from control PCB 51 Portion's cable from the control PCB 51 being fixed on PCB standing part 33 along the outside phase of inner shell 30 Continue by inside cable by hole 312, inside cable groove 313 and inside cable guiding groove 314, and Through inside cable through hole 315, hence into the inner space of inner shell 30.Enter inner space Inside cable is connected to be arranged on the fan 60 of the bottom of inner shell 30, and extends further to connect To UV light emitting diode substrate 55.In the air purifier of the present invention, inside cable is received by fan The inside cable through hole 315 of part 301 received enters the inner space of inner shell 30, and it is space outerpace And the path between inner space, and therefore inner shell 30 keeps airtight conditions, increases the most further The efficiency that air stream is accelerated by fan 60 is (if other parts of inner shell 30 are perforated and internal Cable is inserted into this part, then in inner shell 30, the partial air of flowing can pass through perforation and inside Space between cable is flowed out).

When seeing, it appears that inside cable can readily be entered by the discharge portion 34 of inner shell 30 Entering inner shell 30, discharge portion 34 is arranged adjacent to control PCB 51.But, because inner shell Air flowing access in 30 is blocked by dust collecting filter 90 and photocatalytic filter 80, by row The route of gas part 34 be impossible (if cable is arranged by this route, the air of inner shell 30 Will be around cable bypass, and therefore depurator air cleaning efficiency will necessarily reduce).It addition, as above institute Stating, the filter in the front of inner shell 30 can be replaced.Therefore, in the present invention, internal electricity Cable is connected by the side of inner shell 30 according to above-mentioned route.

As shown in Figure 10, inside cable is positioned away from filtering by hole 312 and external cable through hole 322 Both sides on the direction of device pull-out direction.Therefore, as shown by the broken line in fig. 9, inside cable is with outer Portion's cable is connected to left side and the right side route of inner shell 30.This structure significantly increases according to this The utilization rate of the inner space of the air purifier of invention, inner space is the least, and should be at it Front has and connects and the structure of dismounting filter, and the air purifier of the therefore present invention can be made Make the compactest.

Flow passage in air purifier

Figure 12 is showing the perspective view of the air purifier according to the present invention, itself in the state in which, Top shell 40, upper shell 10, back casing 22 and left shell 31 are all removed, and Figure 13 is according to this The perspective view of air purifier of invention, itself in the state in which, wherein top shell 40, upper shell 10, back casing 22 and right shell body 32 are removed.

The flow passage of the air purifier according to the present invention is as described below.The negative pressure produced by fan 60 By the air of air-inlet grille 212 suction of procapsid 21 through lower house 20 and inner shell 30 Space, and be inhaled into the suction part 61 of fan 60, by the both sides of the bottom of inner shell 30 Carbon filter 70 and air intlet 302.Then, air is upwards arranged by fan 60 from discharge portion 63 Going out, it is distributed into pipeline configuration equably by movement-oriented device 37 and streamlined diverging duct 381, And move up.

When air moves up, movement-oriented device 37 turns forward with streamline-shaped, and works as it upwards Time UV light emitting diode substrate 55 be slightly inclined upwardly, the spoke of UV light emitting diode on the substrate 55 The most significantly deviate in the range of photocatalytic filter 80 according to direction.As in Figure 13 and 2 it can be seen that, The air flow duct that substrate 55 is set to inner shell 30 is formed is spaced apart, the stream of such air Kinetic energy is enough naturally to be guided, and reduces the kinetic energy rejection of air stream whereby.

With reference to Figure 12 and 13, streamlined diverging duct 381 has a structure in which, when its forward time its Diameter becomes larger.Lower house 20 is entered from exterior guiding conversely speaking, by air-inlet grille 212 Air has flow passage, when it advances towards the air intlet 302 that the bottom of inner shell 30 provides, Flow passage becomes big by streamlined diverging duct 381.In other words, the streamlined pipeline 381 of dissipating Function is to increase the area of section of the air flowing access in inner shell 30, also increases lower case 20 And the area of section of the air flowing access in the space between inner shell 30.This sky according to the present invention Flow of air structure and pipeline configuration allow air purifier to be made compact, minimize air stream simultaneously Loss.

Then, the air stream moved up by fan 60 is guided by said structure, filters through photocatalysis The multiple through holes formed in device 80, and then pass through dust collecting filter 90.

It should be noted that UV light emitting diode substrate 55 is placed on the bottom of inner shell 30, this position With the height correlation of a part for lower house 20, described part has relatively small diameter, and photocatalysis Filter 80 and dust collecting filter 90 are arranged on the top of inner shell 30, this position and upper shell The height correlation of 10.In other words, according to the present invention, the diameter of inner shell 30 is also between lower casing Increase at the height of the stepped portion between body 30 and upper shell 10, and UV light emitting diode substrate 55 can be prepared as relatively small, and can be placed at 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 larger, In order to maximize the area of ingress of air, it is arranged in the increase diameter portion of inner shell 30, and And the inside of dust collecting filter 90 will frequently occur air pressure to reduce, it is also disposed at inner shell 30 Increase diameter portion, to increase the air area of section by filter.It will be seen that it is tight when manufacturing During the air purifier gathered, this structure of the present invention is the structure that can dramatically increase air purification efficiency.

It is directed to discharge portion by streamlined diverging duct 382 by the air of filter 80 and 90 34, and it is discharged into outside.

Streamlined diverging duct 382 is formed as streamline-shaped, to reduce the area of section of air flowing, Reduce the loss of air flowing simultaneously.At the superjacent air space of streamlined diverging duct 382, it is by this shape There is provided, can serve as PCB standing part 33.Control PCB and be fixed to PCB standing part 33, so Air purifier can be operated, and its mode of operation can be examined at top simultaneously.The air of the present invention The purpose of depurator is to assemble and in glass stand.It can be seen that operation button is arranged at the top of air purifier Existence, and the air emission direction being outwardly directed from air purifier top, it preferably makes with the present invention The state of used time is identical.Streamlined diverging duct 382 can reduce air flow losses, draws airflow guiding Arrive narrow discharge portion, and ensure that the space controlling PCB 51 placement, make to have leisure by these Gas purifier is compacter.

Meanwhile, UV blocking radiation plate 39 is set below discharge portion 34, to stop that UV light is sent out from UV Optical diode substrate 55 is transmitted into outside by discharge portion 34.Therefore, UV blocking radiation plate 39 can To eliminate user's misgivings to the adverse effect of UV light.

The position being inhaled into about air in the air purifier of the present invention and direction, air access portion quilt It is arranged on the top (below the stepped portion of upper shell 10 and lower house 30) of lower house 20 and to leading To.About position and the direction of air-out from air purifier, air discharge portion divides and is arranged on top Housing 40 and being upwardly directed.When entering part and discharge part are configured to spaced apart away from each other, and Guiding different directions as above, the air-out after purification is prevented from being again introduced into induction part.

In view of the fact that, acetaldehyde and acetic acid, it is decomposed by air purifier, and it is heavier than air and therefore sinks Amassing, air access portion is arranged on lower house 20 so that air purification efficiency improves further.

It addition, because the air purifier of the present invention is intended for use glass stand, air-inlet grille 212 is formed at down The top of housing 20, in order to suck air to be clean.Narrow between lower house 20 and inner shell 30 In narrow space, defining streamlined diverging duct 381 and air intlet 302, air passes through air intlet 302 enter inner shell 30, and air intlet 302 is arranged below the both sides of streamlined diverging duct 381 On, it is in dissipating on direction and in vertical direction of streamlined diverging duct 381 so that minimize air Flow losses.The area of section of the air flowing in inner shell 30 is also by streamlined diverging duct 381 are guaranteed.In these areas, it can be seen that achieve and be best suitable for the size for air purifier Air flowing access with state.

The arrangement of air purifier filter

The order arranged according to air flowing access according to the filter in the air purifier of the present invention, empty The carbon filter 70 that gas first passes through prefilter 72 and activated carbon is made, has to filter out in air The dust of bulky grain size and absorption also remove noxious substance (such as, ammonia and acetic acid).Then, acetaldehyde and Ammonia and acetic acid are degraded by the light-catalyzed reaction of photocatalytic filter 80.It follows that air is by by fiber mistake The dust collecting filter 90 that filter etc. are made is to remove fine dust, and is then exhausted through.

The function of prefilter 72 is that pre-filtering falls big dust granule to stop foreign substance such as ash whereby Dirt is attached on photocatalytic filter 80, and the attachment of dust reduces the efficiency of photocatalytic filter 80. And, the function of activated carbon be absorbing ammonia and acetic acid to increase the degradation efficiency of acetaldehyde, draw at photocatalyst In the competitive reaction risen, the reaction of acetaldehyde is more late than ammonia and acetic acid (acetaldehyde is not easy to be absorbed by the activated carbon).

Nevertheless, it should be recognized that, occur the dust collecting filter 90 of maximum pressure drop to be set therein In the downstream of photocatalytic filter 80 to increase the pressure of the air stream contacted with photocatalytic filter 80, Improve the efficiency of photocatalytic filter 80 ingress of air the most further.

And, in the present invention, the UV light emitting diode 57 for photo catalytic activation is arranged on light and urges Changing the upstream of filter 80, such UV light can be from front (that is, the photocatalysis of photocatalytic filter 80 The surface of UV light emitting diode 57 faced by filter 80) exposure light catalytic filter 80.This situation Under, the surface from the front of photocatalytic filter 80 and neighbouring front is started to occur by light-catalyzed reaction, Before being occurred by air pressure drop during photocatalytic filter 80, further increase photocatalysis by this and filter Device 80 is degraded the efficiency of toxic gas.It addition, this arrangement can make dust collecting filter 90 direct It is arranged on the downstream of photocatalytic filter 80, hence in so that air purifier is the compactest.It addition, be used for The UV light emitting diode 56 of sterilization is also disposed on the UV light emitting diode substrate 55 of the present invention, so Irradiation to the dust being set directly at photocatalytic filter 80 downstream is collected filtration by the UV light for sterilization On device 90, kill the microorganism and pathogenic bacteria being filled into by dust collecting filter 90 whereby.Therefore, In this case, the germicidal efficiency in the case of germicidal efficiency is significantly higher than UV light only irradiation air stream. It addition, the UV light emitting diode for photo catalytic activation and the UV light emitting diode for sterilization are arranged on On single substrate, this makes simple in construction.

It addition, when UV reflecting plate (not shown) is arranged on the photocatalytic filter of the inside of inner shell 30 Time between 80 and UV light emitting diode substrate 55, the UV light of irradiation to the inside of housing 30 can be by instead It is mapped to photocatalytic filter 80, further increases the efficiency of deodorization 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 UV light emitting diode substrate On the core of 55 and luminous around UV for three UV light emitting diodes 57 of photo catalytic activation Diode 56 is arranged.Especially, the UV light emitting diode 57 for photo catalytic activation will be towards photocatalysis Filter 80 irradiation UV light.

As shown in figure 15, photocatalytic filter 80 includes: catalyst member 81, it is covered by sintering TiO on the ceramic porous material with hound's-tooth₂(titanium dioxide) obtains；And covering catalyst The elastic buffer 82 of the side of part.

The front of anticipated catalyst member 81 is (that is, in the face of the UV light emitting diode for photo catalytic activation The surface of 57) and for photo catalytic activation UV light emitting diode 57 between distance by according to air The change of flow behavior and change, as between UV light emitting diode substrate 55 and photocatalytic filter 80 Distance and UV light arrive the area of catalyst member 81 and the function of irradiance.In view of this estimate into Row experiment, and as a result, it is possible to see, in this case, wherein, square light was catalyzed The length (l) of the side of filter 80 is 5.5cm, when light source 57 and photocatalytic filter 80 front (i.e., The surface of UV light emitting diode 57 in the face of for photo catalytic activation) between distance when being 2.5cm, The effect of sterilization is best, and when distance is reduced to below 2cm or increases to more than 3cm, sterilization Effect can quickly degenerate.

During distance the least (below 2cm) between the front of light source 57 and photocatalytic filter 80, UV The area of the part of the photocatalytic filter 80 of photoirradiation reduces, but it arrives saturation, Qi Zhongguang The efficiency of catalytic activation is not further added by, even if when the UV light on the per unit area of photocatalytic filter 80 Irradiance increase time (the UV irradiance related experiment of the Figure 16 that sees reference, it will be later described).When When UV light emitting diode substrate 55 is too close to photocatalytic filter 80, air can not readily flow into light The central area (place of the main irradiation of UV light) of catalytic filter 80, and therefore contact photocatalysis is lived The amount of the air changing this region being easiest to generation reduces.

It addition, when the distance between light source 57 and the front of photocatalytic filter 80 is too big (more than 3cm) Time, in the unit are of photocatalytic filter 80, the irradiance of UV light reduces to reduce photo catalytic activation Degree, and between both air flowing be stable, it shows as laminar flow, show contact light urge Change the air capacity minimizing that filter 80 shows.

Meanwhile, when the length (l) of the side of filter is 4-7cm, the effect of deodorization is good.As When really the length of the side of filter is below 4cm, UV light by irradiation to there is no the region of filter, Illustrate that UV light is wasted, and if time the length of side of filter is more than 7cm, will appear from UV light Irradiate less than region, illustrate that filter material and space are wasted.

Meanwhile, the voltage of the electric energy that supply UV light emitting diode 57 is worked as in discovery is below 5V or electric current is During below 200mA, the transmitting of light substantially reduces, and demonstrates the need for using extra UV light emitting diode, And when the voltage of electric energy is more than 15V or electric current is more than 300mA, even if when electric energy increases, The transmitting of light also will not continue to increase.

Meanwhile, the inventors have discovered that the change of the deodoriging properties of photocatalytic filter 80 depends on catalysis The thickness (t) of the framework between the shape in chamber that formed in agent part 81, the width (g) in each chamber, chamber, The length of the side of catalyst member 81, the quantity (n) in chamber of catalyst member, the height of catalyst member Degree (h), direction (forward or reversion), the sintering temperature of catalyst member 81 and the time of air stream, For photo catalytic activation UV light emitting diode 57 peak wavelength and arrive catalyst member 81 front The irradiance of UV light.

Figure 16 is showing the function of the irradiance of the UV light as the front arriving catalyst filter 80 The figure of degraded of acetaldehyde.

First, the change of the deodoriging properties of photocatalyst and arrive the UV light in front of catalyst member 81 The change of irradiance be detected repeatedly.As a result, it is possible to see, when the unit are of photocatalyst surface UV irradiance be 14.67mW/cm²Time following, the deodorization rate of photocatalyst is along with the increasing of UV irradiance Add and increase, but when UV irradiance is higher than 14.67mW/cm²Time, deodorization rate is not further added by.Especially, This trend is consistent, the width (g) in the most each chamber 83, the thickness (t) of chamber framework, catalysing area The length of side, the quantity (n) in chamber of catalyst member, the height (h) of catalyst member and the catalysis divided The sintering temperature of agent part 81 and time.

It addition, the result repeating test shows, when the UV irradiance of the unit are of photocatalyst surface is low In 10mW/cm²Time, the deodorization rate of light-catalyzed reaction reduces rapidly, it may be possible to because the amount of light is the most sufficient, And when the UV irradiance of the unit are of photocatalyst surface is higher than 20mW/cm²Time, it is used for strengthening UV The electric flux of irradiance increases, but is not significantly increased by the deodorization rate of photo catalytic activation.

Figure 17 is showing the figure of the UV absorbance of the photocatalytic filter 80 of the function as UV wavelength, The figure of the removing speed of the acetaldehyde being showing under different UV wavelength with Figure 18.

About the UV absorbance of photocatalytic filter 80, it is as the function of UV wavelength, can be at figure Seeing in 17, the UV absorbance of photocatalytic filter 80 is the highest when wavelength about 270nm, and works as Wavelength linearly reduces when increasing to 400nm.Nevertheless, it can seen that the peak of the UV light emitting diode used Value wavelength, it is 365nm that photocatalysis efficiency reaches the highest peak wavelength.This is because UV light-emitting diodes The luminous efficiency of pipe.When the peak wavelength of UV light emitting diode reduces, launch from UV light emitting diode Light reduce rapidly.Therefore, in order to provide applicable UV irradiance, it has low peak wavelength for use The surface of photocatalytic filter 80 of UV light emitting diode need, it should use substantial amounts of UV luminous Diode.But, in this case, the increase of the size of substrate 55 is restricted, 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 peak When value wavelength is the UV light emitting diode of below 340nm, the odor removal efficient of photocatalytic filter 80 is rapid Reduce.

And, when use has the UV light emitting diode that peak wavelength is more than 380nm, photocatalysis The UV absorbance of agent is significantly reduced to be similar to the level of conventional visible blue light, shows this UV luminescence two The use of pole pipe is the most meaningful.

It addition, the result of experiment shows to have making of the UV light emitting diode that peak wavelength is 360-370nm With the deodoriging properties that can maximize photocatalytic filter 80.

Figure 19 is showing the acetaldehyde removing speed of two photocatalytic filters 80 with differing heights (h) Figure, and Figure 20 be showing two photocatalytic filters 80 with differing heights (h) acetic acid remove The figure of speed.

The result of experiment shows, in the case of photocatalytic filter 80 has the shape shown in Figure 15, The surface area of photocatalyst, it increases due to the thickness (t) of the framework between the chamber of photocatalytic filter Add, have substantially no effect on the odor removal efficient of photocatalytic filter 80, but photocatalytic filter 80 Highly affect the inner wall area of interior air flow passage, therefore directly affect the contact area of air.

Thus, it can be seen that when the height of photocatalytic filter 80 is 5-10mm, photocatalysis is filtered The odor removal efficient of device 80 is the highest.It addition, when being highly reduced to below 2mm, photocatalytic filter 80 are difficult with, because its faint intensity, and when height is more than 15mm, only air drag Increasing, UV light can not arrive the back part of photocatalytic filter 80 or its density becomes the thinnest, And therefore increase only cost and odor removal efficient can not be increased.

It will be seen that when the width (g) in each chamber 83 is 2mm, air drag will not increase, and by The shape of filter itself has blocked the inwall of the photocatalytic filter 80 that irradiation causes to its UV light Shaded area ratio is the highest, represents that the chamber width of 2mm is most suitably adapted for maximizing photocatalytic filter 80 The UV photoirradiation area ratio of inwall.Meanwhile, when chamber width is reduced to below 1mm, air Resistance increases, and the UV light quantity arriving inwall reduces, and shows that odor removal efficient is low.It addition, chamber width is 4mm Time above, cause owing to the density in chamber 83 is low the entire area of inwall to reduce, show that odor removal efficient is low.

About the chamber density relevant to the width (g) in above-mentioned each chamber, when chamber density less than 30 chambeies/ Square inch or less time, chamber width increases to more than 4mm, and inner wall area reduces, and shows odor removal efficient Low.When the density in chamber is more than 260 chambeies/square inch, chamber width is reduced to below 1mm, air Resistance increases, and the UV light reaching inwall reduces, and shows that odor removal efficient is low.When chamber, density is of about During 100 chambeies/square inch, air drag does not increase, and has been blocked irradiation by the shape of filter itself The shaded area ratio of the inwall of the filter caused to its UV light is the highest, shows that odor removal efficient is the highest.

About test result indicate that of frame thickness (t) in chamber, when frame thickness is below 0.3mm, TiO₂Layer becomes the thinnest, and therefore photocatalysis efficiency reduces, insufficient strength.When frame thickness is 1.2mm Time above, but material consumption increases does not increases photocatalysis efficiency.It addition, when frame thickness is 0.6mm Time photocatalysis efficiency the highest.

Figure 21 is the figure of the deodoriging properties showing photocatalytic filter 80, and it is by by 2gTiO₂Sintering 1 Hour obtaining, sintering temperature is different；Figure 22 is the figure of the deodoriging properties showing photocatalytic filter 80, It is by by 2.5g TiO₂Sintering and obtain for 1 hour, sintering temperature is different；It is display photocatalysis with Figure 23 The figure of the deodoriging properties of filter 80, it passes through 2.5g TiO at 400 DEG C₂Sintering different time obtains Arriving, sintering time is different.

As shown in figures 21-23, when sintering temperature is 350-450 DEG C, deodoriging properties is good, and works as Sintering time is that 1-2 is little constantly, and the deodoriging properties of photocatalytic filter 80 is no problem.It will be seen that When considering the change of temperature, sintering temperature is 400 DEG C, if sintering time is shorter than 1 hour burning Knot is abundant not, and if time sintering time is oversize, the deodoriging properties of photocatalytic filter 80 can reduce and Not being to increase, therefore sintering is preferably carried out 1-2 hour.

As it has been described above, be compact according to the air purifier of the present invention, power consumption is few, and has brilliance Purify ability of air.

Air purifier according to the present invention is compact, simultaneously in terms of dust collection, deodorization and sterilization It is demonstrated by good result.

Air purifier according to the present invention has shape and the compact dimensioning being suitable for placement in glass stand, and There is the firm internal structure being designed as providing this external shape.

Air purifier according to the present invention is dismantled in a simple manner decoupled, it is allowed to divide in the way of disassembled simply From filter, it is simple to maintenance and repair, and filter is allowed to be easy to maintenance and repair.

The present invention blocks UV photoirradiation to outside, therefore decreases the misgivings about ultraviolet radiation.

Present invention provide for determining the position that a compact and complicated internal structure effectively connects, and And the air purifier of the therefore present invention is easily manufactured, safeguards, repairs and uses.

It addition, allow external cable easily to replace according to the shell structure of the present invention, and prevent inside Cable abjection or damaged.

Although it have been described that different embodiments, but those skilled in the art are it should be recognized that described reality Execute example and be only for example.Therefore, the scope of the present invention should not necessarily be limited by described embodiment.

Claims (10)

1. an air purifier, including:

Having the inner shell of the vertically inner space of extension, the bottom of described inner shell is formed with air Import, the top of described inner shell is formed with discharge portion；

Control PCB, be arranged on the PCB standing part in the top being formed at described inner shell；

Fan, is arranged in the fan containing section in the bottom of described inner shell, and be designed to by Extraneous air pushes and enters described inner shell；

UV light emitting diode substrate, is arranged on the precalculated position in described inner shell, and at described UV Light emitting diode substrate is provided with UV light emitting diode, and UV light emitting diode is designed to irradiation UV light； With

Inside cable, connects with from controlling PCB to described fan and the supply of described UV light emitting diode substrate Electric energy,

Wherein, described inside cable stretches out from controlling PCB, tight with the outside of described inner shell Contact, and then pass through the inside cable through hole described inner shell of entrance being formed at fan containing section Inner space.

Air purifier the most according to claim 1, wherein, is extended to by inside cable through hole The described inside cable of the inner space of described inner shell is connected to described fan, and further along The inner space of described inner shell extends so that be connected to described UV light emitting diode substrate.

Air purifier the most according to claim 2, farther includes: filter, is arranged on institute State the top of described UV light emitting diode in inner shell so that filter from inner shell can by Front pull-out, wherein, described inside cable extends along left side or the right side of described inner shell.

Air purifier the most according to claim 1, wherein, described inside cable through hole is formed at The top in the front of described fan containing section, and air intlet is formed at the phase of described fan containing section To left side and right side.

Air purifier the most according to claim 4, farther includes: carbon filter, detachably Be arranged in air intlet,

Wherein, described air intlet has the pair of parallel ladder parts being formed in air intlet, and And the housing of described carbon filter is assemblied between the pair of parallel ladder parts.

Air purifier the most according to claim 5, wherein, the inner shell being spaced and under Housing is connected to each other by the screwed part being arranged in lower house, and the circular portion of described screwed part Support the housing of described carbon filter, thus stop described carbon filter to depart from ladder parts.

Air purifier the most according to claim 5, wherein, the housing of described carbon filter includes It is installed to the elaxtic seal on described housing, for stoping air to flow into the housing of described carbon filter And in the space between described ladder parts.

Air purifier the most according to claim 3, wherein, described filter includes that dust is collected Filter, described dust collecting filter includes: for collecting the filter component of dust；It is designed to Receive described filter component and described filter component be fixed to described inner shell or by described filtration The framework that device parts pull out from described inner shell；With the handle being formed on described framework front.

Air purifier the most according to claim 3, wherein, described filter includes photocatalysis Filter, described photocatalytic filter includes catalyst member and the elasticity covered around described catalyst member Buffer.

Air purifier the most according to claim 9, wherein, photocatalytic filter containing section Including opening portion, described opening portion exposes the both sides of described photocatalytic filter, and described opening Part extends from the front of described photocatalytic filter.