CN107619086A - UV disinfection system - Google Patents

Abstract

Present application is related to UV disinfection system.The embodiment of the present invention includes elongation room.UV light sources include semiconductor device, and the semiconductor device includes the active layer being placed between n-type region and p-type area.The active layer transmitting has radiation of the peak wavelength in the range of UV.The semiconductor device is positioned on the wall of the elongation room.The inner surface of the elongation room has reflectivity.

Description

UV disinfection system

The cross reference of related application

This is the continuous case in part for the US application case the 14/733rd, 494 filed an application on June 8th, 2015, and it is awarded Give assignee of the present invention and incorporated herein by reference.

Technical field

Present application is related to chlorination equipment.

Background technology

The band gap of III- nitride materials (including (Al, Ga, In)-N and its alloy) is prolonged from extremely narrow InN band gap (0.7eV) Extremely wide AlN band gap (6.2eV) is reached, this causes III- nitride materials to be highly applicable to extend to the width of deep ultraviolet from near-infrared Photovoltaic applications in spectral region, such as light emitting diode (LED), laser diode, optical modulator and detector.Visible ray The InGaN in active layer can be used to obtain for LED and laser, and ultraviolet (UV) LED and laser then need larger AlGaN band gap.

UV LED of the launch wavelength in the range of 230-350nm can be used for numerous kinds of applications, and its major part is to be based on UV spokes The interaction penetrated between biomaterial.Typical case includes surface sterilizing, Water warfare, medical treatment device and biochemistry, use In the light source of VHD optical recording, white-light illuminating, fluorescence analysis, sensing and zero-emission vehicle.

UV, which radiates to have, makes bacterium, virus and other microorganism deactivated sterilization properties.Low pressure mercury lamp can produce 254nm models UV radiation in enclosing.Influenceed because most of microbe is radiated by about 260nm, UV is radiated in the scope suitable for bactericidal activity It is interior.Fig. 1 illustrates known UV processing units.Central shaft of the cylindrical chamber 110 along room 110 accommodates UV lamp bubble 112.Bulb can wrap It is wrapped in quartz socket tube.UV radiation 114 is launched from bulb 112.Raw water enters to enter the room at entrance 116, and flows to out Mouth 118, wherein the water through processing can remove from room.Flow control apparatus 120 can prevent water from passing through bulb too quickly, this ensure with The appropriate radioactive exposure time of circulating water.Room is stainless steel.

The content of the invention

Present application is related to water sterilization vessel.Water sterilization vessel include shell；First ultraviolet (UV) luminous two in shell Pole pipe (LED)；It is used for the clarity liners for accommodating water in shell, water has first refractive index, and lining has the inwall of contact water, lining In be to be formed by the material with the second refractive index less than first refractive index so that when the light from the first UVLED with less than When critical angle is incided on water-lining interface, the light leaves the interface by TIR reflection, and lining, which has, to be reflected through interior The outer wall of the light of wall；And power supply, its through control with to the first UV LED provide at least can be partly by the time quantum of water sterilization.

Brief description of the drawings

Fig. 1 is the sectional view of prior art UV decontamination systems.

Fig. 2 is the plan of multiple pixels in flip-chip UV emitters (UVLED).

Fig. 3 is the sectional view of a pixel in Fig. 2 UVLED.

Fig. 4 illustrates the encapsulation comprising UVLED and transparent panel.

Fig. 5 illustrates the encapsulation comprising UVLED and encapsulant.

Fig. 6 illustrates the encapsulation comprising UVLED and optical element.

Fig. 7 is the sectional view of batch processing UV decontamination systems.

Fig. 8 is the sectional view of continuous flowing UV decontamination systems.

Fig. 9 is the sectional view of the continuous flowing UV decontamination systems comprising fluid-impermeable structure.

Figure 10 illustrates multiple continuous flowing UV disinfection rooms in compact package type arrangement.

Figure 11 is the block diagram for controlling the circuit of UV decontamination systems.

Figure 12 is the bisection view of the water receptacle in bottom with integrated UVC LED light sources, and wherein light passes through TIR reflection Go out inwall and carry out sterilised liq.

Figure 13 is the bisection view of the water receptacle in bottom with integrated UVC LED light sources, and wherein light passes through TIR reflection Go out air/gap interface and carry out sterilised liq.

Figure 14 is the bisection view of the water receptacle with integrated UVC LED light sources, the water receptacle be similar to Figure 12 but Wherein UVC LED are located at around vessel sidewall.

Figure 15 is the bisection view of the water receptacle with integrated UVC LED light sources, the water receptacle be similar to Figure 13 but Wherein UVC LED are located at around vessel sidewall.

Same or analogous element is marked with identical numbering in each figure.

Embodiment

Although device as described herein is III- nitride devices, by other materials (such as other III-V materials, II- VI materials, Si) formed device in the category of the embodiment of the present invention.Device as described herein can be configured to launch UV A spokes Penetrate (peak wavelength is between 340nm and 400nm), UV beta radiations (peak wavelength is between 290nm and 340nm) or UV C Radiate (peak wavelength is between 210nm and 290nm).

In embodiments of the present invention, by one or more UVLED be used for sterilize be suitable to fluids for sterilization (such as water, air or appoint What its appropriate materials) device in.

Commercially available UVA, UVB and UVC LED can be used in multiple embodiments.Fig. 2 and 3 be assignee oneself available UVB and UVC LED example.Fig. 2 is the top view of a part for the array of UVLED pixels 12, and Fig. 3 is single UVLED pixels 12 Halve section.Any suitable UVLED can be used and the embodiment of the present invention is not limited to Fig. 2 and 3 device.

UVLED is typically III- nitride, and typically GaN, AlGaN and InGaN.UV transmitting pixel 12 array be Formed on single substrate 14 (such as transparent sapphire substrate).Other substrates are possible.Although example display pixel 12 is circle Shape, but it can have any shape, such as square.Light is escaped by transparent substrates, as shown in Figure 3.Pixel 12 is respective Can be flip-chip, its Anodic and cathode electrode towards support (described below).

All semiconductor layers are above substrate 14 with epitaxial growth.AlN or other Suitable buffer layers (not shown) is given birth to Long, subsequent n-type region 16 grows.N-type region 16 can include multiple layers with different compositions, concentration of dopant and thickness.N-type Region 16 can include it is at least one doped with Si, Ge and/or other suitable n-type dopants n-type Al_aGa_1-aN films.N-type region 16 can have about 100nm to about 10 microns of thickness and be directly grown on cushion.Si doping can be situated between in n-type region 16 In 1 × 10¹⁶cm^-3To 1 × 10²¹cm^-3Between.According to expected launch wavelength, AlN molar fractions " a " in the formula can from 100% change of the 0% of the device launched at 360nm to the device for being designed to launch at 200nm.

Active region 18 grows above n-type region 16.Active region 18 can include single SQW or multiple by potential barrier The separated SQW (MQW) of layer.SQW and barrier layer contain Al_xGa_1-xN/Al_yGa_1-yN, wherein 0<x<y<1, x represents quantum The AlN molar fractions of well layer, and y represents the AlN molar fractions of barrier layer.Generally depended on by the UV LED peak wavelengths launched Al relative amount in AlGaN mqw active layers.

P-type area 22 grows above active region 18.As n-type region 16, p-type area 22 can have comprising multiple The layer of difference composition, concentration of dopant and thickness.P-type area 22 includes the doping of one or more p-types (such as Mg doping) AlGaN Layer.AlN molar fractions can be in the range of 0 to 100%, and this layer or the thickness of multilayer can be (single between about 2nm to about 100nm Layer) or in the range of about 500nm (multilayer).Horizontal conductivity can be improved for the multilayer in this region.Mg dopings can from 1 × 10¹⁶cm^-3To 1 × 10²¹cm^-3Change.The GaN contact layers of Mg doping finally can grow in p-type area 22.

All or some semiconductor layers described above can grow under the conditions of excessive Ga, in US 2014/0103289 More detailed description, the patent are incorporated herein by reference.

Semiconductor structure 15 is etched to form the irrigation canals and ditches on the surface for appearing n-type region 16 between pixel 12.Pixel 12 Side wall 12a can be relative to the normal of the major surfaces of growth substrates vertically or with acute angle 12b inclinations.The height of each pixel 12 138 can be between 0.1-5 microns.Width 131 and 139 in each bottom of pixel 12 and top can be at least 5 microns.May be used also Use other sizes.

In etching semiconductor structure 15 with before or after forming irrigation canals and ditches, by the deposition of metal p-type contact 24 and it is patterned in On the top of each pixel 12.P-type contact 24 can include metal level and one or more formation of one or more formation Ohmic contacts The metal level of reflector.One example of suitable p-type contact 24 includes Ni/Ag/Ti multilayer contacts.

By the deposition of n-type contact 28 and pattern so that n-type contact 28 is deposited on the n of flat between pixel 12 On the surface of type region 16.N-type contact 28 can include single or multiple metal level.N-type contact 28 can include for example with n-type region The 16 ohm n-type contacts 130 directly contacted and the n-type cover type contact layer 132 formed above ohm n-type contact 130. Ohm n-type contact 130 can be such as V/Al/Ti multilayer contacts.N-type cover type contact 132 can be such as Ti/Au/Ti multilayers Contact.

N-type contact 28 and p-type contact 24 are electrically separated by dielectric layer 134.Dielectric layer 134 can be by any suitable side Any appropriate materials that method is formed, such as one or more Si oxides and/or one or more silicon nitrides.Dielectric layer 134 covers N-type contact 28.The opening exposure p-type contact 24 formed in dielectric layer 134.

P-type cover type contact 136 is formed above the top surface of device, and generally covering is entirely pushed up in a conformal way Surface.P-type cover type contact 136 is electrically connected to the p-type contact 24 in the opening formed in dielectric layer 134.P-type covers It is electrically separated that formula contact 136 by dielectric layer 134 contacts 28 with n-type.

Be electrically connected to p-type cover type contact 136 and n-type contact 28 sane metal gasket be provided in the outside of figure for It is connected to power terminal.Multiple pixels 12 are included in single UVLED.The pixel is contacted by large area p-type cover type 136 and large area n-type cover type contact 132 electrical connection.The quantity of pixel can be selected based on application and/or required radiant output Select.Single UVLED comprising multiple pixels is illustrated as UVLED 1 in figure below.

In certain embodiments, substrate 14 is sapphire.The thickness of substrate 14 can be for example about hundreds of microns.With In the 1mm squares UVLED 1 of 200 μ m-thick Sapphire Substrates, it is assumed that radiation is sent from the top of substrate and side, then pushes up table Face accounts for about the 55% of substrate radiating surface, and side accounts for about the 45% of radiating surface.Substrate 14 can be kept in certain embodiments For a part for device, and can be removed in certain embodiments from semiconductor structure.

When from the top surface of substrate 14, when orientation upside-down mounting illustrated during device is relative to Fig. 3, UVLED can be square, rectangle or any other suitable shape.

Illustrated UVLED can be placed in encapsulation in Fig. 2 and 3.Three kinds of encapsulation are illustrated in Fig. 4,5 and 6. In each encapsulation, UVLED 1 is attached to support 70.Support 70 can be such as ceramics bracket, circuit board, metal cored printed circuits Plate, silicon support or any other suitable configurations.Circuit element (such as the drive circuit or any other suitable for UVLED 1 Circuit) can be placed in it is on support 70 or interior.It is more than one in Fig. 4,5 and 6 in each of illustrated encapsulation UVLED could attach to support 70.In each disinfection room being described below, single UVLED can be used, can be used be placed in it is single Multiple UVLED in encapsulation, or one or more multiple each self-contained UVLED encapsulation can be used, it is enough with providing in disinfection room The UV radiation of middle sterilization.

In Fig. 4 encapsulation, UVLED 1 is attached to support 70.Transparent panel 72 is placed in the tops of UVLED 1.Transparent panel 72 Can be quartzy or any appropriate materials.UVLED 1 can pass through as illustrated in fig. 4 with the direct physical contact of transparent panel 72 Such as the sky with the material (such as oily or any other appropriate materials) of index matching between filling bracket 70 and transparent panel 72 Between 74 and with the optical contact of transparent panel 72, or be spaced apart with transparent panel 72.

In Fig. 5 encapsulation, UVLED 1 is attached to support 70.Neighbouring UVLED 1 blank on UVLED 1 and support 70 The sealed UVLED 1 in space material 76 covers.Suitable closure materials are the transparent material of UV hardening, and protect UVLED 1.Appoint What appropriate materials (such as glass) can be applied by any appropriate technology (such as sol gel process).Can etch-back UVLED Encapsulant above 1 top surface is to appear UVLED 1 top surface (being usually the top surfaces of growth substrates).

In the encapsulation of Figure 4 and 5, in certain embodiments, side wall 78 forms closed chamber so that UVLED 1 and fluid point From and from fluids for sterilization protection LED.For example, if fluid is liquid, then support 70, side wall 78 and transparent panel 72 or close Closure material 76 forms the watertight compartment that UVLED 1 is placed in one.Side wall 78 can be wall, metal or the plastic containers of disinfection room or appoint What its suitable configurations.

In Fig. 6 encapsulation, UVLED 1 is attached to support 70, and optical element 60 is attached to UVLED 1.Optical element 60 can be any suitable optical element, comprising such as domed lens, Fresnel Lenses (Fresnel lens), illustrated Compound parabolic collimator or any other suitable lens or optical element.Illustrated optical element 60 can produce in Fig. 6 The radiation pattern that the raw radiation pattern launched than not having the UVLED 1 of optical element 60 more collimates.In certain embodiments, light It is compound parabolic collimator to learn element 60.The UV radiation for running into crooked sidewall 64 is reflected towards exit surface 62.Optical element 60 can be UV radiation reflectives is gone out the solid transparent material of side wall 64, or the opening filled with air by total internal reflection (TIR) Hollow structure, and side wall is to be formed by reflecting material or be coated with through reflecting material.In the case of hatch frame, exit surface 62 It may simply be opening.Compound parabolic collimator can be more suitable for UV radiation sources being placed in answering on elongation disinfection room end wall With.Domed lens can be more suitable for putting UV radiation sources into the application in elongation disinfection room side wall.

Optical element 60 can be to block inverted pyramid or circular cone.The exit surface 62 of optical element 60 can be such as rotation pair Title, oval, circle, square, rectangle or any other suitable shape.The shape of the exit surface 62 of optical element 60 can be with The shape of sterilizing utensil matches.The surface for being optically coupled to UVLED top surfaces of optical element 60 can be only slightly larger than UVLED's Top surface；It is big in certain embodiments to be no more than 10%, it is big in certain embodiments to be no more than 20%, and in certain embodiments It is big to be no more than 30%.In certain embodiments, lens or other optical elements be placed in UVLED 1 top UVLED 1 with Between optical element 60.

Solid optical element 60 be the UV radiation transparents by the wavelength launched UVLED 1 and be resistant to UV radiation and The material do not lowered one's standard or status is formed.For example, in certain embodiments, optical element can be by transmissivity at least 85% under 280nm Material formed.The material can lower one's standard or status no more than 1% after 280nm UV radiation 1000hr is exposed to.In some embodiments In, optical element 60 is formed by moldable material, such as glass, purchased from five Ling Xiao subsidiaries (Isuzu Glass, Inc.) IHU UV transmissive glass and anti-UV silica gel.In certain embodiments, optical element 60 is by can be for example, by grinding and being polished to The material of shape is formed, such as quartz or sapphire.Can be more cheap by moulding the optical element formed；By grinding and polishing shape Into optical element can have more preferable optical quality.

In certain embodiments, optical element 60 is only optically coupled to UVLED 1 top surface, usually UVLED 1 The surface of growth substrates or the major surfaces of semiconductor structure.In certain embodiments, optical element 60 can also be UVLED's 1 Extend above side and be optically coupled to the side.Optical element 60 only can extend above the side of growth substrates, or Extend above the side of both growth substrates and semiconductor structure.

As illustrated in FIG. 6, in certain embodiments, only UVLED 1 top surface is optically coupled to optical element 60.UVLED 1 side surface is not optically coupled to optical element so that from the radiation loss of side surface transmitting.Capture only comes It can increase the etendue of UVLED/ system of optical elements from the radiation of top surface.Increase etendue can increase system irradiation level and Reduce light source size, this is applied available for some.The radiation for being transmitted into side is dropped in these embodiments, but is launched in UV In system, radiation can launch preferentially towards UVLED side surface rather than UVLED top surface, because in AlGaN active layers Polarization.

It is solid material (such as the optics illustrated in Fig. 6 that radiation is guided by total internal reflection in optical element Element) embodiment in, optical element can have TIR with may or may not pass through TIR guiding radiation other surfaces group Close.For example, the dome surface group that the non-TIR 64 of optical element illustrated in Fig. 6 can be spaced apart with UVLED 1 Close, such as to replace flat output surface 62.

UVLED 1 with optical element 60 can be used in disinfection room as illustrated in FIG. 6, in Fig. 4 or 5 In illustrated encapsulation or in any other suitable package.

Fig. 7 is the sectional view of one embodiment of chlorination equipment.Fig. 7 device includes disinfection room 40.Disinfection room 40 is to stretch Long；Length 42 is big at least 5 times than such as width 44 in certain embodiments, and in certain embodiments than width 44 very much not More than 100 times.Section at plane 45 can be annular, square, rectangle, hexagon or any other suitable shape.

UV radiation sources 50 are at least one wall placements along disinfection room.In the figure 7 in embodiment illustrated, one UV radiation sources 50 are placed in one end on a shortwall of elongation disinfection room 40.It is single in each disinfection room as described herein UV radiation sources can be positioned on any wall of disinfection room or in the either component of disinfection room, or multiple UV radiation sources can be positioned at and disappear On the identical or multiple wall of malicious room.In certain embodiments, UV radiation sources are positioned on the longer side wall of elongation room, rather than or another It is outer to be positioned on the shorter end wall of elongation room.In certain embodiments, UV radiation sources are positioned on two end walls of disinfection room.For Realize that the UV of scheduled volume is radiated with each point in disinfection room, with being positioned at for enough UV radiation must be produced in the opposite end of room The single UV radiation sources of one end are compared, and often hold one UV radiation source of each use to allow to reduce the power to be used at the both ends of room UV devices.

In the figure 7 in embodiment described, UV radiation sources 50 can be placed on the top person that can be considered disinfection room.Sterilization Ceiling portion 52 can be formed by UV reflecting materials towards the surface 54 in disinfection room or is coated with through the material.Disinfection room bottom (shortwall i.e. relative with top) can be formed by UV reflecting materials towards the surface 48 in disinfection room or be coated with through the material. Surface 48 and 54 can have an identical reflectance coating, but this and it is nonessential.Suitable for the example of the reflectance coating on surface 48 and 54 (included comprising metal, silver, aluminium, Teflon (Teflon), polytetrafluoroethylene (PTFE) (PTFE), barium sulfate, oxide, Si oxide SiO₂), yttrium oxide, hafnium oxide, multiple-level stack, distributed Bragg reflector (distributed Bragg Reflector) combined with it.

The side surface 46 for extending disinfection room 40 can be by drawing (i.e. perpendicular to the surface of top surface and basal surface described above) The material for playing total internal reflection (TIR) or attenuated total internal reflection (ATR) is formed or is coated with through the material, wherein the material has Reflectivity but there is certain absorbability so that some radiant forces lose in incident when on ATR materials.TIR materials are at some Preferably it is used to preferably reflect in embodiment, but ATR materials (such as cost, durability etc.) can make for other reasons With.In certain embodiments, extending disinfection room is formed by durable cheap material (such as plastics or makrolon), wherein interior Surface is by causing TIR or ATR material to be coated with.The example of the coating and/or material that suitably form disinfection room, which includes, causes UV spokes The TIR that penetrates and do not absorb or generally non-absorbent material, for example, Teflon, Fluorilon 99-U and it is listed above show be used for Any material of the coating on surface 48 and 54.Disinfection room can be by for example suitable for the disinfection room listed above shown and/or surface 48 Example, plastics, metal, glass or any appropriate materials with 54 coating are made.

In certain embodiments, disinfection room 40 run into water one or more surfaces (such as side surface described above or Top surface and basal surface) can be through catalysis material (such as TiO₂) be coated with or otherwise handle.TiO₂Can by water photocatalysis into OH free radicals, it can be by decomposition of organic material come purified water.

In certain embodiments, fluids for sterilization in bulk is carried out using water disinfecting device illustrated in fig. 7.For example, Chlorination equipment can be water bottle.Top 52 can be removable；For example, top 52 can be screw lid, suppress lid or by appointing What its suitable way is fixed to the structure of disinfection room.Removable top 52, disinfection room 40 is filled with water, and for example pass through pressing Button or flicking switch (not showing in the figure 7) to activate UV radiation sources 50.UV radiation sources 50 can be in irradiation sterilization room 40 water, Until being for example automatically turned off or being disabled by user.Then removable top 52, and remove sterilized water.In some embodiments In, single UV radiation sources 50 can be placed in the bottom rather than top of water bottle so that the water to be sterilized is tightly enough close to UV spokes Penetrate radiating piece of the source for use as UV radiation sources.In addition, UV radiation sources 50 are placed in into the bottom of water bottle rather than top can reduce or disappear Except loss related with TIR at the air gap between UV radiation sources and fluid, it can be caused by endless full packing water bottle.

Fig. 8 is the sectional view of one embodiment of water disinfecting device, and described device can sterilize continuous flow process and overstepping one's bounds Criticize the water in technique, device as illustrated in fig. 7.In Fig. 8 device, UV radiation sources 50 are placed in elongation disinfection room 140 one end, as shown in Figure 7, and the irradiation sterilization room 140 in activation.The end of top and bottom 48 for extending disinfection room 140 can It is coated with through UV reflecting materials or is formed by it, as shown in Figure 7.The inner surface 46 of disinfection room 140 can apply through TIR or ATR materials Cloth, as shown in Figure 7.

In fig. 8 in illustrated device, the water to be sterilized is flowed into disinfection room 140 by entrance 56.Water passes through The flow direction of disinfection room 140 outlet 58, wherein sterilized water outflow disinfection room 140.In Fig. 8 illustrated device not press than Example is drawn；Disinfection room 140 is illustrated longer than in Fig. 8 and entrance 56 and outlet 58 are spaced further apart.For example, sterilize Room 140 is wide longer at least 100 times, and one than its in certain embodiments in certain embodiments than at least 10 times of its wide length It is wide longer at least 500 times than its in a little embodiments.The long enough of disinfection room 140 with cause water in disinfection room sufficient dwell time to expose It is exposed to enough UV radiation and carrys out disinfectant.

Disinfection room 140 can be such as flexible plastic hoses or any other appropriate materials.In certain embodiments, entrance 56 (in certain embodiments with UV radiation sources 50) can be sunk in water body so that user can be extracted towards outlet 58 or pumping water.

Cause that UV radiation is different with Fig. 1 devices of radial transmitting indoors from by the placement of UV light sources, in figures 7 and 8 institute In the device illustrated, UV light sources 50 are placed in one end of room so that radiate the length down along elongation room with longitudinal transmitting.

Fig. 9 is the sectional view of the continuous flowing disinfection room comprising fluid-impermeable structure (such as filter).In Fig. 9 dress In putting, disinfection room 84 is defined by elongation side wall 80, and filter 82 is placed in the either end of room 84.Fluid enters at 86, leads to Cross filter 82 to flow into room 84, then by the second filter 82, wherein it leaves room at 88.UV radiation sources 50 are placed in In side wall 80 or any other suitable location.As in fig. 8, disinfection room can be flexible (such as plastic tube) or rigidity.Disinfection room Usually extend, but it can be any suitable shape.

Filter 82 can be any suitable structure that fluid may pass through.Filter 82 may filter that out some or all of in fluid Particulate matter, but this and it is nonessential.Filter 82 can also reflect UV radiation so that the light that UV radiation sources 50 are launched sinks into room 84 In.Filter 82 can be any appropriate materials, be manufactured comprising such as porous aluminum, aluminum screen or by Bao Li things company (Porex, Inc) The porous Teflon formed by Teflon particle sintering.The length and diameter of room 84, the porosity of filter 82, UV radiation sources 50 The radiant power and other characteristics launched may be selected so that under predetermined flow rate, fluid (such as empty gas and water or any other Suitable fluid) sufficient dwell time carrys out fluids for sterilization in room 84.

In certain embodiments, some or all of walls of room 84 can be coated with through catalysis material, as described above.Due to light Catalyzing disinfection needs fluid and catalysis material in close proximity to therefore being coated with through catalysis material or the other structures that are formed by it It can be placed in room 84.In the embodiment comprising catalysis material, fluid can be carried out disinfection in a manner of three kinds：By filter 82 Mechanical filter, the interaction generation radiated by the UV radiosterilizations from UV radiation sources 50 and by passing through catalysis material with UV OH free radicals sterilization.

It is in the multiple disinfection rooms 84 closely arranged that Figure 10, which is illustrated, as shown in Figure 9.Disinfection room can optionally add with up to To required fluid flux.Although indivedual disinfection rooms are in hexagon to maximize the area of section of disinfection room, indivedual sterilizations Room can be any suitable section.

Figure 11 is the block diagram of circuit, and the circuit can control the UV radiation sources in any disinfection room described above.Also may be used Use any suitable circuits.Illustrated all component is not required in all embodiments in Figure 11.The component Can be placed on above-mentioned support or in, it is and electric each other via support, circuit board or any other suitable configurations as illustrated Connection.UV radiation sources 50 may be connected to microprocessor 90, and it can open and close UV radiation sources 50, and adjustable UV radiation sources 50 Power.It can be user's activation or automatically and can be that any switch 91 suitably switched can directly activate UV radiation sources and (scheme Do not shown in 11), or can activation of microprocessor, its open UV radiation sources.

The time quantum that fluid is exposed to the radiation from UV radiation sources can be indicated that the timer can be counted by timer 94 Predetermined time amount is counted, hereafter microprocessor 90 can close UV radiation sources 50.Indicator 92 (such as light or any other suitable instruction Device) it may indicate that whether UV radiation sources 50 are just launching UV radiation.

Detector 96 can detect the UV amount of radiation of set point in disinfection room.The UV amount of radiation that light source 50 is launched can be corresponding Ground is adjusted by microprocessor 90.The second detector 98 can be used to detect whether UV radiation sources 50 are just playing appropriate function. For example, the first detector 96 can be made to be positioned near UV radiation sources 50, and the second detector 98 can be made away from UV radiation sources 50 positioning.When UV radiation sources 50 are opened, the UV amount of radiation detected by each of detector 96 and 98 may compare.If Detector 96 indicates higher UV amount of radiation and detector 98 indicates relatively low UV amount of radiation, then fluid may be by Particulate Pollution. If detector 96 and 98 indicates low UV amount of radiation, then UV radiation sources 50 may not play appropriate function.Instruction can be used Device 92 indicates to the user that UV radiation sources 50 do not play appropriate function.

In one kind operates, user activates switch 91.As response, microprocessor 90 opens UV radiation sources 50.Microprocessor Indicator 92 can also be switched to the state that instruction UV radiation sources are sterilizing by device 90.UV amount of radiation is surveyed by detector 96 Amount.As response, microprocessor 90 can adjust the power of the time quantum that UV radiation sources 50 stay open and/or UV radiation sources 50, Carry out fluids for sterilization to deliver the UV of sufficient dosage radiation.After reaching dosage, microprocessor 92 can close UV radiation sources 50 immediately, and Close indicator 92 or indicator 92 is changed to the state for indicating that UV radiation sources terminate sterilization.

Figure 12 is that in bottom there are one or more to integrate the second-class of UVC LED 152 portable cylindrical hydrophone ware 150 Divide view, wherein light goes out the inwall 153 of lining 155 come sterilised liq by TIR reflection.TIR, which occurs to be in incident light, to be less than During the critical angle at interface.It may be present between outer wall 156 (such as aluminium) and next wall 158 and isolate 160 to keep water cooling.From The light 162 that LED 152 launches is responsible for making vessel 150 fill water 164.LED 152 launches the light in UVC scopes 260-280nm, The scope is to kill microorganism with the most effective scope of disinfectant.The cell membrane and DNA of UVC destruction microorganisms are so that its is basic It is upper harmless.

Water has about 1.35 refractive index.Lining 155 is preferably molded polymeric thing, and it has smooth inner surface and is less than The about 1.33 refractive index refractive index of water (be slightly less than) is to cause TIR occurs.Suitable polymer is available from the limited public affairs of MY polymer Take charge of the MY-133-V2000 of (MY Polymers Ltd) or purchased from Tuo Pa high polymers Co., Ltd (Topas Advanced Polymers, GmbH) the polymer of support pa 8007.Also commercially available other polymer with other appropriate refractive index.Utilize TIR, compared with reflecting material (such as polishing metal) (reflectivity about 90%-95%), substantially areflexia loses (reflectivity> 99.5%).Lining 155 is not regarded as reflector and can be transparent.UVC light constantly reflect the interface of water outlet/lining 155 until It is absorbed by the micro-organisms or because of the particle decay in water 164.

LED 152 is located at bottom (such as being molded as the bottom of polymer linner 155 for protecting) and cause UVC light All the time reflect in the water of any amount and at headspace/water termination.In another embodiment, UVC LED 152 are encapsulated in Mirror is interior and is attached to the inwall of lining 155 to minimize the waveguide in lining 155.If UVC LED 152 are attached to lining 155 Inwall, then can be by making conductor travel through the sealing hole in lining 155 to manufacture the electrical connection with power supply.

The outer wall 158 of lining 155 can be the deposition of reflective metal film 158 on polymer, such as aluminium, chromium or silver, with reflection Return more than critical angle and pass through any light of transparent polymer lining 155.To mitigate the inner waveguide of transparent polymer lining 155 Effect, outer surface can include molding prism or roughening reflects back into water 164 so that reflected light is at numerous individual angles to increase In UVC light percentage.

Known 2000-8000 μ Ws/cm^-2Dosage can kill objective microbe.

Small control circuit 166 includes replaceable battery, switch and timer.It can also include and be used to recharge too for battery Positive energy battery.After water filling vessel of user's use-case such as from current, user applies power to LED immediately by compressing switch 152 reach the scheduled time for thinking that kill Institute of Micro-biology needs.According to the source of water, timer can be settable.Or whenever control When circuit 166 processed senses the opening of cap 167 and then closed, LED 152 is auto-power on.Dose monitor can be also included in vessel To measure the accumulation for the UVC energy for being fed to water.After reaching threshold value, dose monitor control UVC LED are closed.Figure 11 is illustrated Illustrate the possibility embodiment of control circuit 166.

Figure 13 is the bisection of another portable cylindrical hydrophone ware 170 in bottom with integrated UVC LED light sources 152 View, wherein light go out air/gap interface come sterilised liq by TIR reflection.Outer wall 156 can be aluminium.Outer wall 156 with it is transparent It is the air gap 175 between polymer linner 174 (refractive index is about 1).Lining 174 can be with gathering for identical described in Figure 12 Compound, simply the outer wall of lining 174 be not reflected by material covering because the outer wall for reflecting lining 174 is by more having The TIR of effect.Light 176 of the display from LED 152 goes out the interface of air/lining 174 by TIR reflection.Light is also by TIR reflection Go out the inwall of lining 174, it is as shown in Figure 12.Aluminium outer wall 156 can have polished inner surface to be reflected to pass light through lining 174 Return in water 164.

Figure 14 is the bisection view of hydrophone ware 188, and the hydrophone ware is similar to Figure 12 but wherein LED 152A and 152B In the side wall of clarity liners 155.LED 152 can also be in bottom.Allow in diverse location addition LED bigger in vessel UVC is covered, and this can shorten required disinfecting time.Show UVC light 190.

This installed in side wall LED 152A and 152B and using TIR technology can be additionally used in vessel for conveying input with it is defeated During the pipeline of the water between going out, such as shown by Fig. 8-10.The pipe section that Figure 14 and 15 embodiment can be easily converted to Divide and be used to sterilize the water for traveling through pipeline.

Figure 15 is the bisection view of portable hydrophone ware 200, and the hydrophone ware is similar to Figure 13 but wherein LED 152A It is located at 152B in the side wall of clarity liners 174.TIR and other reflectance signatures are identical with Figure 13.

After the present invention is described in detail, one of ordinary skill in the art, which will realize, is providing the feelings of disclosure of the present invention Under condition, the present invention can be modified under the spirit without departing substantially from inventive concept described herein.Specifically, difference described herein The different characteristic and component of device can be used in any other devices, or can omit each feature and component from any device.One The characteristic of such as optical element described in embodiment context is applicable to any embodiment.For the tool in specific embodiment The appropriate materials of body component description can be used in other components and/or other embodiments.Therefore, it is not intended that by scope of the invention It is limited to specific embodiment that is illustrated and describing.

Claims (18)

1. a kind of water sterilization vessel, it includes：

Shell；

The first UV LED in the shell；

It is used for the clarity liners for accommodating water in the shell, the water has first refractive index,

The lining has the inwall for contacting the water, and the lining is by the second refraction with less than the first refractive index The material of rate is formed so that when the light from the first UV LED less than critical angle to incide on water-lining interface, institute State light and the interface left by TIR reflection,

The lining has outer wall of the reflection through the light of the inwall；With

Power supply, its through control with to the first UV LED provide at least can be partly by the time quantum of the water sterilization.

2. vessel according to claim 1, wherein the outer wall of the lining covers through reflectance coating.

3. vessel according to claim 1, it further comprises the air gap of the outer wall of the neighbouring lining, made Must enter the UV light of the lining by TIR air and the outer wall of the lining reflected at interfaces.

4. vessel according to claim 1, wherein the lining includes transparent polymer.

5. vessel according to claim 1, it further comprises between the shell and the outer wall of the lining Reflecting material, the reflecting material are used to make UV light reflect back into the water.

6. vessel according to claim 1, wherein the shell is with anti-in the water for reflecting back into UV light Penetrate inwall.

7. vessel according to claim 1, it further comprises the controller for being energized to the first UV LED, institute Stating controller includes power supply and switch.

8. vessel according to claim 7, it further comprises being used to close the first UV automatically over time LED timer.

9. vessel according to claim 7, it further comprises the solar cell for being recharged for the power supply.

10. vessel according to claim 1, wherein the located bottoms close to the vessel of the first UV LED, its Described in the tops of vessel there is cap in overthe openings.

11. vessel according to claim 1, it is described in the vessel that it further comprises that one or more are optically coupled to The extra UV LED of water.

12. vessel according to claim 1, wherein the first UV LED are located in the wall of the lining, and the UV Light is coupled in the water by the clarity liners.

13. vessel according to claim 1, wherein the first UV LED adhere to the inwall of the lining.

14. vessel according to claim 1, wherein the vessel seal through cap and are portable.

15. vessel according to claim 1, wherein the vessel are generic cylindrical.

16. vessel according to claim 1, it further comprises between the lining of the vessel and outer surface Isolated material.

17. vessel according to claim 1, wherein the container has input port and output port.

18. vessel according to claim 1, wherein the UV light is in the range of 260-280nm UVC.