TW201701938A - Water purifier and cartridge for water purifier - Google Patents

Abstract

A water purifier is provided. In the types of water purifier for removing free chlorine such as the "Active carbon + Hollow fiber membrane" type of water purifier, despite in the situation that the water purifier is inactive for a long time, the breeding of the bacteria within the interior of the purifier is inhibited and there is no or significantly less "water to be discarded" when the water purifier is in use again. A water purifier using a cartridge for water purifier, the cartridge comprising: an adsorbing portion to process the original water by an adsorbing member; a hollow fiber processing portion to obtain purified water by a hollow fiber membrane accommodated within a casing processing the water being processed by the adsorbing process, the casing is having a UV ray penetrating portion composed of a UV ray penetrating material; and a connecting flow path for connecting the adsorbing portion and the hollow fiber processing portion; UV ray irradiates from the exterior of the UV ray penetrating portion by a UV ray source having a UV ray emitting LED and carries out UV sterilization on the adsorbing processed water within the casing and on the surface of the hollow fiber.

Description

Filter for water purifiers and water purifiers

The present invention relates to a novel water purifier and a filter cartridge for a water purifier used in the water purifier.

The water purifier is used to remove residual chlorine, trihalomethanes, rust spots, general bacteria and/or fungi contained in tap water, and is put into practical use in various forms depending on the place or the manner of use.

In these water purifiers, the static type (also called hose-mounted type) or the under sink (also known as built-in type) is more than the direct mounting type of the faucet. Large, and the amount of water treatment is also large, used in many uses.

In addition, most of the water purifiers currently used are the so-called "activated carbon type + hollow fiber membrane type" which combines activated carbon type and filter type (hollow fiber membrane), and exchange and use a special filter for water purifiers (hereinafter also It is simply referred to as "filter"), thereby maintaining the water purification capacity for a long period of time (refer to Patent Documents 1 to 4).

That is, Patent Document 1 discloses a water purification filter cartridge having a tap water inlet and a water outlet, and sequentially arranging an adsorbing member and a hollow fiber membrane on the way; the water purifying filter has a The hollow fiber membrane cover is filled with the hollow fiber membrane having a tubular shape with both ends open; and the adsorption member unit is cylindrical and has a water passage formed therein, and is filled with water to make the water inward from the outside. The adsorbing member is flowed; the adsorbing member unit is provided with a cap having a hole for supporting an end surface of the adsorbing member in a watertight manner; and a lid body which is watertightly supported The other end surface; the side of the cover body with the hole is disposed so as to be the connection side of the hollow fiber membrane cover; the cover body with the hole and the cover system pass through the inside for circulating the adsorption member The slit tube of the water passage is connected; the hollow fiber membrane cover and the adsorption unit have slightly the same sectional area, and are connected in series in a watertight manner.

Patent Document 2 discloses a filter cartridge for a water purifier, which is composed of a plurality of filter media and a hollow fiber membrane for treating tap water; the filter material includes an adsorbent layer and an organic substance adsorbed in tap water. And the function of dissolving and removing the residual chlorine; and the antibacterial ion eluting member is a metal ion having an antibacterial property; the adsorbent layer is disposed on the upstream side of the antibacterial ion eluting member in the axial direction of the filter cartridge of the water purifier; The antibacterial ion eluting member is composed of at least two kinds of antibacterial ion eluting members having different elution amounts of metal ions having antibacterial properties.

Patent Document 3 discloses a water purification filter which is attached to a filter a hollow fiber membrane accommodating portion for accommodating the hollow fiber membrane is disposed on the downstream side of the body, and the filter accommodating container is provided with an opening hole for inflow of water on the outer peripheral wall; the support frame is inserted The filter medium storage container has an inflow port at the outer peripheral portion and a water outlet port at the downstream end portion; and the filter medium is filled between the filter material storage container and the support frame; and is disposed upstream of the filter material storage container. The raw water supply unit is provided, and the water from the raw water supply unit flows in from the outer peripheral wall of the filter medium storage container and passes through the filter medium, and flows in from the outer peripheral portion of the support frame and flows out from the outlet of the support frame toward the hollow fiber membrane; An interference plate for diffusing the effluent water from the outflow port is disposed in the vicinity of the outflow port.

Patent Document 4 discloses a filter cartridge for a water purifier which has an adsorption member on an upstream side and fills a hollow fiber membrane bundle in a U shape to a casing; the hollow is formed in a U shape. The curved portion of the silk film bundle is opposed to the adsorbing member, and has a hollow fiber membrane module fixed to the casing by using a casting member on a downstream side of the adsorbing member; the adsorbing member is a cylindrical type; The internal water passage of the adsorbing member is in communication with the casing; and a protective net is further provided to cover the hollow fiber membrane bundle from the curved portion to the straight portion of the hollow fiber membrane bundle.

On the other hand, a water purifier is known which has an ultraviolet ray sterilizing function using an ultraviolet ray emitting diode (also referred to as an ultraviolet LED or a UV-LED) (see Patent Document 5 and Patent Document 6). For example, the static type water purifier shown in FIG. 5 of Patent Document 5 is attached to the pedestal and is opened downward. a bottomed cylindrical casing and an inner space; wherein the inner space is provided with a water purification filter as a water purification portion, which is slightly cylindrical and longitudinally disposed; and a block portion is disposed in the The purified water filters the upper part of the core and forms a purified water passage on the downstream side of the purified water filter; the outlet of the block is provided with an outlet pipe that penetrates the casing toward the side. Further, an illuminant assembly using an ultraviolet ray emitting diode is disposed in a through hole formed in a curved portion facing the block portion; ultraviolet light (UV) from the illuminant assembly is opposite to the water purifying passage A portion of the curved portion that extends slightly linearly toward the downstream side is irradiated along the extending direction thereof. Further, the illuminator assembly is provided with a substantially cylindrical inner casing made of synthetic resin, and the ultraviolet ray is housed in the casing of the casing. The open side of the housing that emits the UV is covered by the lens, and the irradiation angle of UV can be set by the lens. Further, the lens is formed of, for example, quartz glass, and is airtight and liquid-tight with an urethane resin or the like and fixed to the casing.

[Previous Technical Literature] [Patent Literature]

Patent Document 1: Japanese Laid-Open Patent Publication No. 2002-346550.

Patent Document 2: Japanese Laid-Open Patent Publication No. 2006-231147.

Patent Document 3: Japanese Laid-Open Patent Publication No. 2005-211852.

Patent Document 4: Japanese Laid-Open Patent Publication No. 2012-30204.

Patent Document 5: Japanese Laid-Open Patent Publication No. 2010-214241.

Patent Document 6: Japanese Laid-Open Patent Publication No. 2015-91582.

As described in the above-mentioned Patent Document 1, in the case of using a filter cartridge having activated carbon (activated carbon type), the purified water in which free chlorine is decomposed by activated carbon is suitable for drinking without a chlorine smell, but for a long period of time When placed, etc., the bacteria in the air will invade the bacteria more easily than the tap water; in addition, even if the water inside the water purifier is attached to the bacteria at the outlet of the water purifier, there is bacteria in the outlet of the filter to the purified water. The possibility of proliferation in the purified water between the clean water outlets of the device. Therefore, in general, in the case where the water purifier is not used for a long time, so-called discarded water must be performed when starting to use.

In the filter cartridge described in Patent Document 1, the metal ions having antibacterial properties are eluted to solve the problem. However, since the concentration of the eluted metal ions is affected by the flow rate of the water flowing through the filter plug or The influence of the flow rate is reduced by the material or structure of the water purifier, so that the dissolved ions are reduced due to mismatch formation or sorption, and it is considered that it is difficult to stably obtain high bactericidal efficacy.

In the above-described static type water purifier described in Patent Document 5, although it is not clear which type of filter cartridge is used, it is assumed that even in the case where the activated carbon filter is used and there is a problem of bacterial proliferation, The static water purifier also prevents bacteria from proliferating in water that has been exposed to UV radiation.

However, the part of the aforementioned static type water purifier that performs UV irradiation is The curved portion of the purified water passage extends slightly linearly toward the downstream side, and is not sterilized on the upstream side of the curved portion, and even on the downstream side, in the case where the distance is long, sufficient intensity of UV cannot be reached. possibility. In particular, in the upstream side of the curved portion, in the case where the water purifier is not used for a long period of time, when there is a portion where water remains, there is a bacteria or chlorine resistance which is inevitably mixed from the outside via the joint or the like. It is difficult to prevent the proliferation of such bacteria in the above-mentioned standing type water purifier.

Accordingly, it is an object of the present invention to provide a water purifier that prevents bacterial growth in the interior of the water purifier even in the case where it has been discontinued for a long period of time, and does not have or can minimize the use of the re-starting "Abandon water."

The water purifier of the present invention is for purifying raw water, and comprises: a water purifier body; a filter cartridge for a water purifier, detachably mounted in the water purifier body; and an ultraviolet light source; the water purifier The system includes: a housing having a raw water inlet and a purified water outlet; and the filter unit for the water purifier has an adsorption unit for inflowing from the raw water inlet by the adsorption member treatment. The raw water is obtained by adsorbing treated water; the hollow fiber processing unit is configured to treat the adsorbed treated water and obtain purified water by a hollow fiber membrane housed in the first casing, wherein the first casing has a UV-permeable material. a first ultraviolet ray transmitting portion; and a connecting flow path for connecting the adsorption portion and the hollow fiber processing portion, and guiding the adsorption treatment water to the hollow fiber processing portion; and the ultraviolet light source device An ultraviolet light emitting diode; the light source disposed on the outer side of the first ultraviolet light transmitting portion so as to face the first ultraviolet light transmitting portion; or a light guiding portion having an ultraviolet light for emitting the light emitted from the light source; a light transmitting system that emits the emitted ultraviolet light emitting portion, and the emitting portion is disposed outside the first ultraviolet light transmitting portion so as to face the first ultraviolet light transmitting portion, thereby being present in the first housing The internal adsorption treatment water or the adsorption treatment water and the surface of the hollow fiber are irradiated with ultraviolet rays.

In the water purifier of the present invention (also referred to as a water purifier of the first aspect), it is preferable that the connection flow path is formed inside the adsorption portion, and the ultraviolet light emitted from the ultraviolet light source is attached. a light guiding unit and an optical transmission system for emitting the emitted ultraviolet light emitting unit, and the emitting unit is disposed inside the connecting flow path, thereby adsorbing the treated water present in the connecting flow path or the adsorption processing The surface of the water and the adsorbing member is irradiated with ultraviolet rays (this form is also referred to as a water purifier of the second form).

Further, it is preferable that the adsorption member is housed in the second casing having the second ultraviolet ray transmissive portion made of the ultraviolet ray permeable material, thereby between the outer circumference of the adsorption member and the inner circumference of the second casing. a connection flow path is formed, and a raw water supply flow path for supplying raw water is formed inside the adsorption member; and the light source is disposed on an outer side of the second ultraviolet transmission portion so as to face the second ultraviolet transmission portion Is provided with a light guiding portion for transmitting ultraviolet rays emitted from the light source and for emitting a light transmitting system of the emitted ultraviolet light emitting portion, wherein the emitting portion is disposed so as to face the second ultraviolet light transmitting portion outside the second ultraviolet light transmitting portion, thereby being present in the connecting flow path The surface of the adsorption treatment water or the adsorption treatment water and the adsorption member is irradiated with ultraviolet rays (this form is also referred to as a water purifier of the third form).

Furthermore, it is preferable that the water purifier according to the present invention includes the second aspect and the third aspect, and further includes a flow path member, wherein one end is connected to the purified water outlet, and the other end is When the filter for the water purifier is installed, the water filter is densely sealed with the filter cartridge to form a flow path. In the water purifier, the purified water present in the flow path member is irradiated with ultraviolet rays. (1) an optical transmission system having a light guiding portion for transmitting ultraviolet light emitted from the light source and an emitting portion for emitting the transmitted ultraviolet light, and the emitting portion is disposed inside the flow path ( Also referred to as a water purifier of the fourth aspect; or (2) using an ultraviolet ray transmissive material as the flow path member, and providing a third ultraviolet ray transmitting portion in the flow path and outside the third ultraviolet ray transmitting portion Having the light source disposed opposite to the third ultraviolet ray transmitting portion; or a light guiding portion having a light guiding portion for transmitting ultraviolet light emitted from the light source and an emitting portion for emitting the transmitted ultraviolet ray System, and in the third ultraviolet rays through the outer portion with the third embodiment of the ultraviolet light relative to the emission unit arranged through portion (also referred to as the fifth aspect of the water purifier). In particular, in the water purifier of the present invention, it is preferable that a pipe having a faucet is connected to the downstream side of the purified water outflow port, and the faucet is adjacent to the faucet of the pipe. The inside of the optical transmission system of the same configuration as described above is also disposed (the water purifier of this type is also referred to as a water purifier of the sixth aspect).

Further, in the water purifier of the present invention, it is preferable that the water purifier main body has an internal space that is at least outside the first ultraviolet ray transmitting portion when the filter device for the water purifier is installed. The surface is in contact with each other, and the raw water does not flow in; and the light source is disposed in the internal space (the water purifier in this form is also referred to as a water purifier of the seventh aspect). Further, in the water purifier of this aspect, preferably, the internal space includes: a blowing means that communicates with an outside of the water purifier body to allow the light source to be disposed in the internal space by external air Cooling (this type of water purifier is also referred to as the eighth form of water purifier).

In the water purifier of the present invention, it is preferable to further include: detecting means for detecting a flow of water in the body of the water purifier; and controlling means for detecting by the detecting means The flow state of the water is controlled by the start of the light source (the water purifier of this form is also referred to as a water purifier of the ninth aspect). In particular, it is preferable that the detecting means is used for detecting a flow state and a water stop state; the control means activates the light source when the water stop state (the water purifier of this form is also referred to as a tenth Shape water purifier).

Another aspect of the present invention is a filter cartridge for a water purifier, which is the filter cartridge for the water purifier of the present invention, and is provided with: an adsorption portion having a suction The material is attached, and the raw water flowing in from the raw water inlet is treated by the adsorbing member to obtain the adsorbed water; the hollow fiber treating portion is the first in the first ultraviolet transmitting portion composed of the ultraviolet permeable material. a hollow fiber membrane is accommodated in the casing, and the hollow water of the hollow fiber membrane is permeated to obtain purified water; and the connecting flow path is connected to the adsorption unit and the hollow fiber processing unit. The adsorption treatment water is guided to the hollow fiber treatment portion. Preferably, as the filter core, the adsorbing member is a molded body comprising a composition, and the forming system of the composition contains activated carbon, a heavy metal adsorbing member, and a binder; the forming system is permeable to water. The film, the sheet or the non-woven fabric is coated; the binder and the water-permeable film, sheet or nonwoven fabric are composed of an ultraviolet-ray transparent resin. In the case of the filter cartridge of the above-described second aspect and the third aspect, the ultraviolet ray sterilization of the surface of the adsorbed member can be performed more efficiently.

According to the water purifier according to the first aspect of the present invention, in the case of purifying clean water such as tap water, the conventional "active carbon type + hollow fiber" in combination with activated carbon type and filter type (hollow fiber membrane) Compared with the membrane type water purifier, not only can the same water purification effect be obtained, but also purified water that has been sterilized by ultraviolet rays. In addition, even in the case where the use is stopped for a long period of time, the proliferation of bacteria in the inside of the water purifier can be prevented, and there is no or can minimize the "disposal of water" when the use is resumed.

Further, in the water purifier according to the second aspect and the third aspect, since the surface of the adsorbed water or the adsorbing member which is present in the connecting channel is irradiated with ultraviolet rays, bacterial growth can be more reliably prevented. Further, in the water purifiers of the fourth aspect and the fifth aspect, since the purified water existing in the flow path member is irradiated with ultraviolet rays, the purified water remaining on the downstream side of the purified water outlet is in contact with the outside air. And attaching bacteria can also prevent bacterial proliferation. In general, most of the water purifiers connect the piping with the faucet to the clean water outlet. In this water purifier, although the bacteria will invade from the faucet, in the sixth form of the water purifier, even in the bacteria In the case of intrusion, the proliferation can be prevented, and the purified water retained in the pipe can be kept in a clean state.

In the water purifier of the seventh aspect, since the light transmission system having the light source and the emitting portion that is disposed to face the first ultraviolet ray transmitting portion to the third ultraviolet ray transmitting portion is required to be housed in the water purifier body, Since the compactness of the device can be achieved, and since these light sources and the light transmission system do not directly contact the water, it is less likely to cause a malfunction, and can be easily exchanged and repaired. In the water purifier of the eighth aspect, the cooling of the light source by the external air is performed, whereby the temperature rise due to the heat generated by the light source can be suppressed, so that not only the stability and long life of the light source output can be achieved, but also the net can be obtained. The ventilation of the internal space of the water can prevent the occurrence of fungal or electrical wiring failure due to condensation.

In the water purifiers of the ninth and tenth aspects, since the water can be used in response The state performs the ON (ON) and OFF (OFF) control of the light source, thereby reducing energy costs. In particular, in the water purifier of the tenth aspect, the light source is activated only when the free chlorine has been removed and the bacteria are easily proliferated, and the light source can be stopped after the ultraviolet irradiation for a predetermined period of time, so that, for example, the first ultraviolet ray is formed by the ultraviolet ray permeable resin. In the case of the transmissive portion to the third ultraviolet ray transmitting portion, the resin can be deteriorated by ultraviolet irradiation, and the life can be extended.

On the other hand, the filter cartridge for a water purifier of the present invention has a feature that is suitable for use in the water purifier of the present invention. In particular, the adsorbing member comprises a molded body comprising a composition of a heavy metal adsorbing member and a binder, and the forming system is coated with a membrane, a sheet or a non-woven fabric having water permeability; and the binder and the water-permeable film, In the case where the sheet or the non-woven fabric is applied to the water purifier of the second form and the third form, the ultraviolet ray sterilizing property of the adsorbing member is high.

1a, 1b, 1c‧‧‧ optical transmission system

2a, 2b, 2c‧‧‧ (in the piping) space

3a, 3b, 3c‧‧‧ piping

4a, 4b, 4c‧‧‧air and/or purified water present in the piping

5a, 5b, 5c‧‧‧ fiber

6a, 6b, 6c‧‧‧ connectors

7a, 7b, 7c‧‧‧ pressure connectors

8a, 8b, 8c‧‧‧ UV irradiation space

9‧‧‧Fiber collimator

10‧‧‧Diffusion lens

11‧‧‧Light guide

17‧‧‧Flow components

100, 100a, 100b, 100c, 100d‧‧‧ water purifier

100, 100b, 110‧‧‧ water purifier body

111, 111b‧‧‧ Shell

112, 112b‧‧‧ raw water inlet

113‧‧‧Inlet pipe

114‧‧‧ purified water outlet

115, 115a‧‧ ‧ partition

116‧‧‧ zone divider

120‧‧‧ Filters for water purifiers

130‧‧‧Adsorption Department

131, 131b‧‧‧Adsorption materials

132‧‧‧ housing (second housing)

133‧‧‧UV transmission section (second ultraviolet transmission section)

140‧‧‧Warm Wire Processing Department

141‧‧‧ hollow fiber membrane

142‧‧‧Shell (first shell)

143‧‧‧UV transmission section (first ultraviolet transmission section)

150, 150a, 150b‧‧‧ link flow path

151, 151a, 151b, 151c‧‧‧ upstream side cover

152, 152b‧‧‧ downstream side cover

153, 153a, 153b‧‧‧ Sealed members

154‧‧‧Connecting Department

160, 160a, 160a', 160c, 160d‧‧‧ Light source (ultraviolet light source)

161‧‧‧Ultraviolet light-emitting diode

162, 162a, 162a, 162b, 162c, 162d‧‧‧ optical transmission systems

163, 163a, 163a’‧‧‧Lighting Department

164, 164a, 164a’, 164b, 164d ‧ ‧ shots

170, 170a, 170b, 170c‧‧‧ flow paths

171‧‧‧Flow components

172‧‧‧UV transmission section (third ultraviolet transmission section)

180, 180a, 180b‧‧‧ internal space

181‧‧‧ Raw water into the space

190‧‧‧ Raw water supply flow path

191‧‧‧Water tap

201‧‧‧Detection Department

202‧‧‧ switch

203‧‧‧Power supply

A‧‧‧ raw water

B‧‧‧Adsorption treatment water

C‧‧‧ purified water

Fig. 1 is a schematic view of a water purifier according to an embodiment of the present invention having the features of the first aspect and the seventh aspect.

Fig. 2 is a schematic view of a water purifier according to an embodiment of the present invention having the features of the second, fourth and seventh aspects.

Fig. 3 is a schematic view of a water purifier according to an embodiment of the present invention having the features of the third, fourth and seventh aspects.

Fig. 4 is a schematic view of a water purifier according to an embodiment of the present invention having the features of the third, fifth and seventh aspects.

Fig. 5 is a schematic view of a water purifier according to an embodiment of the present invention having the features of the third aspect, the fourth aspect, the seventh aspect, and the eighth aspect.

Fig. 6 is a cross-sectional view showing a pipe provided with a light transmission system near a faucet.

Fig. 7 is a cross-sectional view showing a piping provided with another optical transmission system in the vicinity of the faucet.

Fig. 8 is a cross-sectional view showing a piping provided with another optical transmission system in the vicinity of the faucet.

A water purifier according to an embodiment of the present invention is for purifying raw water, and comprises: a water purifier body; a filter cartridge for a water purifier, detachably mounted in the water purifier body; and an ultraviolet light source; The water purifier has a housing having a raw water inlet and a purified water outlet; and the filter unit for the water purifier has an adsorption unit for inflowing from the raw water inlet by the adsorption member treatment. The raw water is obtained by the adsorption treatment water; the hollow fiber treatment portion is configured to treat the adsorption treatment water and obtain purified water by a hollow fiber membrane housed in the first casing, wherein the first casing has a UV-permeable material. a first ultraviolet ray transmitting portion configured to communicate with the adsorption portion and the hollow fiber processing portion, and to guide the adsorption treatment water to the hollow fiber treatment portion; the ultraviolet light source has an ultraviolet light emitting diode Having the light source disposed on the outer side of the first ultraviolet ray transmitting portion opposite to the first ultraviolet ray transmitting portion or provided with a light source for transmission The light guide portion and the ultraviolet radiation emitted from a light source a light transmission system for emitting an emission portion of the transmitted ultraviolet ray, and arranging the emission portion so as to face the first ultraviolet ray transmitting portion outside the first ultraviolet ray transmitting portion, thereby being present in the first The inside of the casing adsorbs treated water or adsorbed treated water and the surface of the hollow fiber is irradiated with ultraviolet rays.

Here, as the raw water, it is preferable to use clean water, and in particular, tap water containing residual chlorine which has been treated with a chlorine-based chemical is used.

In the water purifier of the present embodiment, the structure of the water purifier body and the filter for the water purifier is basically the same as that of the conventional "activated carbon type + hollow fiber membrane type" water purifier. The materials and components are basically not limited, and the materials and components used in the conventional water purifier can be used. That is, the water purifier body is provided with a casing, and the casing has a raw water inlet and a purified water outlet, and the shape and the material constituting the casing are not particularly different as in the conventional water purifier. Further, the mechanism for attaching and detaching the water filter to the filter cartridge, the seal, and the mechanism for connecting the pipe are not particularly limited, and the mechanism used in the conventional water purifier can be used.

The basic structure of the water filter for the water purifier is such that the adsorption unit, the connection flow path, and the hollow fiber treatment unit are sequentially arranged from the upstream side to the downstream side to be integrated into the filter core. Further, the adsorbing member and the hollow fiber are not particularly limited, and the adsorbing member and the hollow fiber used in the conventional water purifier can be used.

The specific structure of the filter cartridge is described in detail. The structure disclosed in the above-mentioned Patent Document 1 is a general structure, and the filter cartridge in the water purifier of the present embodiment shown in FIG. 1 which will be described in detail later has the same structure. . In other words, the hollow fiber processing unit is provided with a hollow fiber membrane filled in a cylindrical casing that is open at both ends, and a suction portion that is cylindrically formed and has a connection flow path therein and is filled with water to make water An adsorbing member that flows from the outside toward the inside. Further, in the adsorption unit, a downstream side cover having a hole is provided on one end surface of the adsorption member to support the end surface in a watertight manner, and the end surface is watertightly supported on the other end surface. An upstream side cover is provided, and the downstream side cover side having the holes is disposed so as to be the side of the hollow fiber membrane casing. Further, the hollow fiber casing and the adsorption unit have slightly the same sectional area, and are connected in series and in a watertight manner. Further, in the filter cartridge disclosed in Patent Document 1, the downstream side cover body having the hole and the upstream side cover body are required to be connected via a slit barrel passing through the water passage of the inside of the adsorption member, but In the filter cartridge of the present invention, whether or not such a slit can be used can be arbitrarily determined.

As the adsorbing member, natural zeolite, synthetic zeolite, silver zeolite, acid clay, bacterial adsorbing polymer, phosphate rock, molecular sieve, silicone rubber, strontium aluminum rubber, porous glass, ion exchange resin can be used. Further, a chelate resin, an oil-repellent resin, or the like is used, but it is preferred to use activated carbon having a high adsorption force for free chlorine, musty, and trihalomethane in raw water.

Activated carbon is generally formed by using a binder such as a hot melt resin. It is used for a predetermined shape (usually a cylindrical shape), and in addition to activated carbon, an adsorption member for metal ions such as an ion exchange fiber for selectively taking in lead ions is blended. Further, at the time of formation, a thermofusible nonwoven fabric is generally disposed on the inner side and the outer side of the molded body.

As the hollow fiber membrane, cellulose, polyvinyl alcohol, polyether, polymethyl methacrylate, polysulfone, fluororesin, polyester, polyamine, etc. can be used. However, it is preferred to use a polyolefin (resin)-based hollow fiber such as polyethylene or polypropylene. Preferably, the hollow fiber has an outer diameter of from about 20 μm to about 2000 μm, a diameter of from about 0.01 μm to about 1 μm, a porosity of from about 20% to about 90%, a film thickness of from about 5 μm to about 300 μm, and preferably a hydrophilization treatment. The hollow fiber is housed in the casing in a state in which a plurality of bundles are bundled and bent into an inverted U shape, and both end portions of the bundle of hollow fiber membranes are filled in the lower portion of the casing by being filled between the respective hollow fibers and The curable resin (sealant) between the hollow fiber and the casing is sealed and fixed (potting). At this time, the end of each hollow fiber membrane system is opened toward the downstream.

The ultraviolet light source is not particularly limited as long as it has an ultraviolet light-emitting diode (UV-LED). However, from the viewpoint of high sterilization effect, it is preferable to use a wavelength region having a wavelength of 200 nm or more and less than 300 nm to have a main peak. The ultraviolet ultraviolet light emitting diode (DUV-LED) of the ultraviolet light is more preferably a deep ultraviolet light emitting diode (DUV-LED) having an ultraviolet ray having a main peak in a wavelength region of 220 nm or more and less than 280 nm. Compared to UV lamps, due to UV-emitting diodes (UV-LEDs), especially deep ultraviolet The line light-emitting diode (DUV-LED) has a low light-emitting output and a high directivity of the emitted ultraviolet light, so that the ultraviolet light irradiation area becomes narrow. Therefore, in the case of using a DUV-LED as a light source, it is preferred to irradiate a high-intensity ultraviolet ray over the entire surface of the surface to be irradiated with ultraviolet rays. Therefore, it is preferable to use a method of increasing the irradiance by collecting light; or using a step-up DC (direct current)-DC converter or a charge pump and flowing a high forward current to increase the light output (this is also possible A method of performing a pulse emission as needed. In addition, the power source for the light source can use an external power source or a battery power source.

The light source can be used by directly irradiating ultraviolet rays (UV) emitted from the UV-LED to the object to be irradiated, or can be used as a part of an optical transmission system by which the light guiding portion will be from the UV- Ultraviolet light (UV) emitted from the LED is transmitted and emitted from the emitting portion. As a type of the former, a UV-LED group is arranged on a metal heat-dissipating substrate and covered with a quartz glass cover as disclosed in Patent Document 6 (JP-A-2015-91582). Further, when the intensity of the UV-LED is strong and the UV-LED is made into a package having a wide radiation angle, it is not necessary to arrange a plurality of UV-LEDs and package them, and a UV-LED packaged member can be used as a light source. In addition, as the photovoltaic system, a light-transmitting layer (corresponding to the light guiding portion in the present invention) and a light-emitting surface (corresponding to the emitting portion in the present invention) disclosed in Japanese Laid-Open Patent Publication No. 2006-237563 can be exemplified. A light-emitting device (light guide plate), or a light source, a light transmission hose (corresponding to a light guiding portion in the present invention) disclosed in Japanese Laid-Open Patent Publication No. Hei 6-63106, and a sterilization light irradiation means (phase A combination of the injection parts in the present invention. Further, the light guiding portion and the emitting portion are not necessarily required to be flexible, and may be a general ultraviolet ray transmitting optical fiber or a guided wave path having rigidity or moderate flexibility.

In the water purifier of the present embodiment, the structure that is downstream of the filter cartridge for the water purifier is not particularly limited as long as it is a structure that can purify the filtered water from the purified water outlet. For example, the filter can also be used. The downstream end portion of the hollow fiber processing portion of the crucible is directly connected to the purified water outlet, but is usually connected to the purified water outlet through a flow path. In other words, a flow path member is often provided, and one end of the flow path member is connected to the purified water outlet, and the other end is connected to the filter for the water purifier when the filter for the water purifier is attached. The water is densely connected and forms a flow path. Further, it is often used by connecting a pipe having a faucet to the downstream side of the purified water outlet.

The water purifier according to the present embodiment is characterized in that a first ultraviolet ray transmitting portion is provided in the first casing of the hollow fiber processing portion (the ultraviolet ray transmitting portion may be a part of the casing or may be all of the casing) And arranging the light source and the light transmission system used as needed, and arranging the light source or the emitting portion of the light transmission system so as to face the ultraviolet ray transmitting portion outside the ultraviolet ray transmitting portion, thereby being present in the housing The internal adsorption treatment water or the adsorption treatment water and the surface of the hollow fiber are irradiated with ultraviolet rays, which is different from the conventional water purifier. In addition, compared with the conventional "activated carbon type + hollow fiber membrane type" water purifier that combines the activated carbon type and the filter type (hollow fiber membrane), it is not possible to purify pure water such as tap water. Get the same clean water The effect is also to obtain purified water that has been sterilized by ultraviolet rays. In addition, even in the case where the use has been stopped for a long period of time, the proliferation of bacteria in the inside of the water purifier can be prevented, and there is no or can minimize the "disposal of water" when the use is resumed.

The first ultraviolet ray transmitting portion in the first casing is made of an ultraviolet ray transparent material. As the ultraviolet ray permeable material, sapphire, quartz, and ultraviolet ray permeable resin can be used, and in the case of using an ultraviolet ray permeable resin, sapphire or quartz can be used in combination (for example, laminated). From the viewpoint of cost and ease of container production, it is preferred to use an ultraviolet ray permeable resin.

The ultraviolet ray permeable resin is preferably a resin which is transparent to deep ultraviolet rays having a wavelength of 200 nm to 300 nm, and more preferably a resin which is transparent to deep ultraviolet rays having a wavelength of 220 nm to 280 nm. Examples of such a resin include polyolefin resins such as polyethylene, polypropylene, and polymethyl terpene, and polyolefin resin-based copolymer resins; polytetrafluoroethylene (PTFE) and tetrafluoroethylene. Fluorine resin such as tetrafluoroethylene-par fluoro alkyl vinyl ether copolymer (PFA); methacrylic resin, epoxy resin, alicyclic polyimide resin, polyamide resin, polyvinyl chloride, polyvinyl alcohol resin, etc. (Effects such as ultraviolet absorbers and plasticizers which absorb ultraviolet rays irradiated in the ultraviolet irradiation step are not included). Among these resins, a polyolefin resin or a polyolefin-based copolymer resin is preferably used. These ultraviolet light transmitting resins may be used singly or in combination with a laminate or the like. In addition, regarding the ultraviolet transmittance of the resin film, "Matsui Matsuto, Kiyoshi Seihiro, "UV Transmittance II of Plastic / Film", Toyo Food Industry Short / Toyo Food Research Research Report, 102-111 (1967) ", DAIKIN INDUSTRIES, Ltd. Technical Data GX-27e "Neoflon ^TM Membrane"" and http://jp.mitsuichem.com/service/functional_polymeric/polymers/tpx/spec.htm, etc. In the case of the ultraviolet ray permeable resin, it is preferred to apply an inorganic ultraviolet ray permeable coating agent to the surface, thereby achieving high strength and high durability.

The ultraviolet ray transmissive portion 143 preferably has a thickness of 100 μm or more and 5 mm or less, more preferably 200 μm or more and 2 mm or less, and particularly preferably 500 μm or more and 1 mm or less. Further, the transmittance of the ultraviolet ray transmitting portion 143 with respect to the ultraviolet ray to be irradiated is preferably 40% or more, more preferably 50% or more, and most preferably 70% or more.

When the ultraviolet light source or the emitting portion of the optical transmission system is disposed to face the first ultraviolet ray transmitting portion, the number and arrangement method are not particularly limited. For example, in the case where the container is housed in the container body, it is sufficient to appropriately determine the accommodation space or the like in such a manner that the entire object to be irradiated (the surface of the adsorption treatment water and the hollow fiber membrane surface) is irradiated with ultraviolet rays as much as possible. In addition, in the case of using an optical transmission system, the ultraviolet light source may be disposed outside the water purifier body, and the ultraviolet light is transmitted to the purified water via the light guiding portion. The injection part inside the body. This point is also the same in the case where the second ultraviolet ray transmitting portion, the third ultraviolet ray transmitting portion, the inside of the connecting channel, or the inside of the channel is irradiated with ultraviolet rays.

The above description has been mainly made of the representative form of the water purifier of the first embodiment, but the water purifier of the present embodiment is not limited thereto. For example, as described above, the connection flow path may be formed inside the adsorption unit, and a light guide unit for transmitting ultraviolet light emitted from the ultraviolet light source and an emission unit for emitting the emitted ultraviolet light may be attached. In the transport system, the emitting portion is disposed inside the connecting channel, and the surface of the adsorbed water or the adsorbed water and the adsorbing member present in the connecting channel is irradiated with ultraviolet rays. According to the water purifier of this form, that is, the water purifier according to the second aspect, even in the case where the water purifier has been used for a long time, the adsorption treatment water and the adsorption structure existing in the connection flow path can be prevented. Bacterial proliferation in the surface of the material.

Further, the configuration of the adsorption unit and the connection flow path can be changed as described below. In other words, the adsorption member may be housed in the second casing having the second ultraviolet ray transmissive portion made of the ultraviolet ray permeable material, whereby the outer circumference of the adsorption portion and the inner circumference of the second casing may be The connection flow path is formed therebetween, and a raw water supply flow path for supplying raw water is formed inside the adsorption member. Further, a light source may be disposed on the outer side of the second ultraviolet ray transmitting portion so as to face the second ultraviolet ray transmitting portion, or a light guiding portion for transmitting the ultraviolet ray emitted from the light source may be attached and the illuminating portion may be transmitted. In the light transmission system of the ultraviolet light emitting portion, the emitting portion is disposed on the outer side of the second ultraviolet light transmitting portion so as to face the second ultraviolet light transmitting portion. According to the water purifier of the third aspect, the water purifier according to the third aspect is capable of simultaneously irradiating the first ultraviolet ray transmitting portion and the second ultraviolet ray transmitting portion with ultraviolet light in a common light source or light transmitting system, and thus Compared with the shape of the water purifier, it can simplify the structure of the water purifier, so it is efficient.

Further, in order to irradiate the purified water existing in the flow path with ultraviolet rays, a light guiding portion having a light guiding portion for transmitting ultraviolet light emitted from the light source and an emitting portion for emitting the transmitted ultraviolet light may be attached. And arranging the emitting portion inside the flow path; and providing a third ultraviolet ray transmitting portion using the ultraviolet ray permeable material to the flow path member for the same purpose, and the outer portion of the third ultraviolet ray transmitting portion The ultraviolet light transmitting portion is disposed to face the light source, or a light guiding portion having a light guiding portion for transmitting ultraviolet light emitted from the light source and an emitting portion for emitting the transmitted ultraviolet light, and the third ultraviolet light is disposed The emitting portion is disposed on the outer side of the transmitting portion so as to face the third ultraviolet ray transmitting portion. In the case where the pipe having the faucet is connected to the downstream side of the purified water outflow port, the pipe may be disposed in the vicinity of the faucet of the pipe in the same portion of the light transmission system. Further, as the ultraviolet ray permeable material constituting the second ultraviolet ray transmitting portion and the third ultraviolet ray transmitting portion, the same material as that constituting the first ultraviolet ray transmitting portion can be used.

In addition, in the water purifier of this embodiment, the method further includes: detecting means for detecting the flow of water in the body of the water purifier; and controlling means for detecting by the detecting means The state of the flow of water controls the start control of the light source (or the power source for the light source). The detection means may be electromagnetic (electrical); impeller type, float type, Karman type, Coriolis type, etc.; ultrasonic type; thermal type flow sensor; It may be a means for detecting the opening and closing state of the valve in the raw water supply pipe disposed upstream. Among these, it is preferable to detect the flow state and the water stop state as in the above-described valve closing detecting means. Further, as the control means, it is preferable to control the power source of the ultraviolet light source when the water is stopped. At this time, the power source for the light source may be set to be in a conductive state during the water stop state after detecting the water stop state, but may also be after a predetermined time period after detecting the water stop. The power source is set to be turned on; in addition, the power may be turned off after a predetermined time has elapsed after detecting that the power is turned on. Furthermore, the power source can be turned on and off intermittently during the water stop state. Therefore, for example, even when the first ultraviolet ray transmitting portion to the third ultraviolet ray transmitting portion are formed of the ultraviolet ray transmitting resin, the amount of ultraviolet ray irradiated to the entire resin can be reduced, and the ultraviolet ray deterioration of the resin can be reduced. Seeking to live longer.

Embodiments of the present invention will be described in detail below with reference to the drawings. Fig. 1 is a view schematically showing a representative aspect of a water purifier according to an embodiment of the present invention having the features of the first aspect and the seventh aspect. The water purifier 100 shown in FIG. 1 is used for purifying raw water A, and is provided with a water purifier body 110 and a water purifier. The filter cartridge 120 and the ultraviolet light source 160 are provided. Further, the water purifier body 110 has a casing 111, and is configured to be detachably received inside the water purifier body 110, and houses a water purifier filter 120 having a raw water inlet 112 and a purified water flow. Exit 114. Further, the downstream side cover 152 of the adsorption unit 130 of the filter cartridge 120 of the water purifier has a meandering shape, and accommodates the water purifier filter 120 with the partition plate 115 of the outer casing 111 and the sealing member 153. When it is installed in the water purifier body 110, the space in the body is divided into two watertight spaces, that is, the space in the body is divided into an internal space 180 into which the raw water does not flow, and a raw water inflow space 181 into which the raw water A flows.

In addition, the raw water A that has flowed in from the raw water inlet port 112 is filled in the raw water inflow space 181, and passes through the adsorption member 131 from the outside of the adsorption member 131 in the adsorption unit 130 of the water filter cartridge 120 to perform adsorption treatment. The obtained adsorption-treated water B flows into the connection flow path 150 formed inside the adsorption member 131. At this time, since the upstream side of the adsorption unit 130 (and the connection flow path 150) is hermetically sealed by the upstream side cover 151, the raw water A does not flow into the connection passage. The adsorption-treated water B that has flowed into the connection flow path flows into the hollow fiber treatment unit 140 from the hole provided in the downstream side cover, and passes through the hollow fiber membrane 141; the obtained purified water C passes through the flow path member 171. The formed flow path 170 flows out through the purified water outflow port 114 from the faucet which is further connected to the piping of the purified water outflow port 114.

In the water purifier 100, the casing (first casing) 142 of the hollow fiber processing unit 140 is composed of an ultraviolet ray transmissive material, and is entirely an ultraviolet ray transmissive portion 143. Further, an ultraviolet light source 160 and an optical transmission system 162 composed of a light guide plate are disposed in the internal space 180. At this time, the light-emitting surface of the light-transmitting system 162 belonging to the emitting portion 164 is disposed to face the first casing 142 (also the ultraviolet-ray transmitting portion 143), and is present inside the first casing 142. The adsorbed treated water B and the surface of the hollow fiber are irradiated with ultraviolet rays.

The right side of Fig. 1 shows the detailed structure of the optical transmission system 162. The optical transmission system 162 is in the form of a so-called light guide plate, and a light-polarizing element is provided on one side as a light-emitting surface (emission portion 164), which is composed of a UV-LED. The UV light emitted from the light source 160 is emitted from the light emitting surface through the light transmitting layer (light guiding portion 163). The light guiding portion 163 may be composed of a plurality of plate members disposed around the first casing 142, or may be composed of a tubular member surrounding the first casing 142. Alternatively, as the ultraviolet light source, a plurality of axial ultraviolet lamps may be disposed around the first casing 142.

Further, although not shown, it is preferable that the internal space 180 has a blowing means that communicates with the outside of the water purifier body 110 and cools the light source disposed in the internal space by the outside air. Thereby, the light source can be cooled by the external air, and the temperature rise due to the heat generated by the light source can be suppressed, so that the output of the light source can be stabilized and the life can be extended. In addition, because it can also ventilate the internal space of the water purifier, it can prevent Condensation causes a malfunction of fungal or electrical wiring. Further, the light source may be disposed outside the water purifier body 110, whereby the cooling of the light source can be performed efficiently. In this case, it is sufficient that the UV emitted from the light source is transmitted to the light transmission layer via an optical transmission member such as an optical fiber.

Fig. 2 is a view schematically showing a representative aspect of a water purifier according to an embodiment of the present invention having the features of the second aspect, the fourth aspect, and the seventh aspect. The water purifier 100a shown in Fig. 2 basically has the same configuration as the water purifier 100 described above except for the following points. In other words, in the water purifier 100a, the following two points have a great difference: the first point is that newly attached light is disposed inside the connection flow path 150a formed inside the adsorption unit and inside the flow path 170a. The emission portions 146a and 164a' of the transport systems 162a and 162a'; the second point is that the upstream side cover 151a has a meandering shape, and further partitions the space between the water purifier body from the partition plate 115a and the sealing member 153a, and forms The second internal space 180a. Further, the light source 160a and the light guiding portion 163a for the optical transmission system 162a are disposed inside the internal space 180a, and the light source 160a' and the light guiding portion 163a' for the optical transmission system 162a' are disposed in the internal space 180. internal. In addition, the optical transmission systems 162a and 162a' are different from the light guide plate type optical transmission system 162, and are the same as the light transmission hoses (light guiding portions 163a and 163a') disclosed in Japanese Laid-Open Patent Publication No. Hei 6-63106. The combination with the germicidal light irradiation means (the emitting portions 164a, 164a').

In the water purifier 100a, such a configuration is made, whereby it can exist in the company The surface of the adsorption-treated water B and the adsorption member 131 in the junction channel 150a is irradiated with ultraviolet rays, and the purified water C existing in the channel 170a is further irradiated with ultraviolet rays, whereby the growth of bacteria in the cells can be prevented.

Fig. 3 is a view schematically showing a representative aspect of a water purifier according to an embodiment of the present invention having the features of the third aspect, the fourth aspect, and the seventh aspect. In the water purifier 100b shown in FIG. 3, the adsorption member 131b is accommodated in the second casing 132 having the second ultraviolet ray transmitting portion 133 made of an ultraviolet ray permeable material, thereby absorbing the outer periphery of the absorbing member 131b. A connection flow path 150b is formed between the inner circumference of the second casing 132. Further, the upstream side cover 151b is attached so that the upstream side end portion of the adsorption member is watertightly sealed and supported by the second casing. Further, a hole is provided in a central portion of the upstream side cover 151b, and a cylindrical connecting portion 154b is provided on an outer peripheral portion of the hole. In the connecting portion 154b, the outer peripheral portion of the raw water inflow port 112b of the outer casing 111b is joined to the sealing member 153b by the partition pipe 116 projecting toward the inside, thereby forming the raw water supply flow path 190 for flowing the raw water A. . At this time, the second housing does not necessarily need to be distinguished from the first housing, and the first housing may be elongated on the upstream side and also serve as the second housing. This is shown in Figure 3. That is, a portion corresponding to a portion of the hollow fiber in one of the casings 132 is a first casing, and a portion corresponding to the outer peripheral portion of the adsorbing member is used as the second casing.

Further, the downstream side cover 152b is watertightly sealed with the downstream side end portion of the adsorption member, and the downstream side end portion of the raw water supply flow path 190 is watertightly dense. Installed in a sealed manner. Further, in the case where the outer diameter of the downstream side cover 152b is made smaller than the inner diameter of the second casing and the downstream end portion of the connection flow path 150b is opened, or the downstream side cover 152b is provided In the case where the diameter is the same as the inner diameter of the second casing and is supported by the second casing, a hole for allowing the adsorption treatment water B to flow downstream is provided at the downstream end of the connection flow path 150b.

Therefore, the raw water A is directly introduced into the inside of the adsorption member 131b through the raw water supply flow path 190, and is transmitted from the inside to the outside of the adsorption member, and the adsorption-treated water B subjected to the adsorption treatment reaches the hollow fiber through the connection flow path 150b. Processing department. With such a configuration, most of the space inside the water purifier body 110b is an internal space 180b into which the raw water A does not flow, and the space for accommodating the light source or the optical transmission system can be widened.

Further, in the water purifier 100b, the optical transmission system 162b whose light guiding portion and the emitting portion are extended is used instead of the optical transmission system in Fig. 1. The emitting portion 164b of the optical transmission system is disposed not only in the first ultraviolet ray transmitting portion but also in the second ultraviolet ray transmitting portion. Therefore, the emitting portion 164b can be present not only in the interior of the first casing 142 but also in the interior of the first casing 142. When the surface of the adsorption-treated water B and the hollow fiber is irradiated with ultraviolet rays, the surface of the adsorption-treated water B and the adsorbing member present in the connecting channel 150b can be simultaneously irradiated with ultraviolet rays, so that the internal structure can be simplified.

Further, a light source similar to that shown in FIG. 2 is disposed in the flow path 170b. And the optical transmission system can sterilize the purified water in the flow path.

Fig. 4 is a view schematically showing a typical aspect of a water purifier according to an embodiment of the present invention having the features of the third aspect, the fifth aspect, and the seventh aspect. In the water purifier 100c shown in FIG. 4, an ultraviolet ray transparent material is used as the flow path member 171c for constituting the flow path 170c, and the whole is used as the third ultraviolet ray transmitting portion 172. Further, a light source 160c and a light guide plate type optical transmission system 162c are disposed outside thereof. The other points are the same as those of the water purifier 100b shown in FIG. Further, as shown on the right side of FIG. 4, the cylindrical connecting portion 154c of the upstream side cover 151c may be extended and joined to the water inlet pipe 113c outside the raw water inlet of the outer casing.

Fig. 5 is a schematic view showing the water purifier 100d connected to the piping 190 having the faucet 191 on the downstream side of the purified water outlet. In the water purifier 100d, the pipe 190 is attached to the water purifier having the same configuration as that shown in Fig. 3, and a new light source 160d and a light transmission system 162d are further attached, and the light is disposed inside the pipe near the faucet 191. The emitting portion 164d of the transport system 162d. Thereby, even if the bacteria invade from the faucet, the bacteria can be prevented from proliferating, and the purified water retained in the pipe can be kept in a clean state.

In FIG. 5, the light source 160d is disposed in the vicinity of the faucet, but may be disposed in the internal space of the water purifier body, and an optical fiber or the like is used as the light guiding portion, and the emitting portion is irradiated with UV.

The injection portion disposed in the pipe is preferably a fiber collimator, a light diffusing plate, a diffusing lens or a light guide plate, and is preferably a lens for the purpose of widening the irradiation area. A diffuser plate, a diffusing lens or a light guide plate. Here, the optical fiber collimator refers to a member for collimating light from an optical fiber as collimated light (parallel light), and is preferably a connection for incorporating an aspherical lens for a ferrule for an optical fiber. Type. The lens diffusion plate is also called a diffusion film, a diffusion filter, or a diffusion sheet, and can be uniformly irradiated by diffusing light into a circular shape or an elliptical shape or the like due to the action of a minute lens formed by irregularities in the surface. Further, it is preferable to use a Light Enhancer Cap (registered trademark) manufactured by Enplas Corporation as a diffusion lens. Here, it is preferable to use a surface light-emitting device disclosed in, for example, Japanese Laid-Open Patent Publication No. 2006-237563 as a light guide plate.

The size, shape, and number of the projections, or the arrangement pattern when the plurality of projections are provided may be appropriately determined as long as the size or shape of the piping is appropriately adjusted. In addition, it is preferable that the surface of the pipe in the ultraviolet irradiation space in the vicinity of the portion where the injection portion is provided is made of a material having a large reflectance to ultraviolet rays, for the reason that the sterilization efficiency can be improved by the reflection of the ultraviolet light. For example, it is composed of a platinum group metal such as Ru, Rh, Pd, Os, Ir, Pt, Al, Ag, Ti, an alloy containing at least one of these metals, or magnesium oxide; for reasons of high reflectance More preferably, it is formed of Al, a platinum group metal, an alloy containing a platinum group metal, or magnesium oxide. Further, in the case where the surface is formed of such materials, it is preferably ultraviolet ray permeable such as cerium oxide. The material coats the surface.

The optical connection between the light guiding portion and the emitting portion is not particularly limited as long as it can ensure watertightness. For example, a method in which a port portion optically connected to the light guiding portion is provided in the emitting portion can be employed. The main body of the injection portion is placed in the pipe so that the crotch portion is exposed outside the pipe while ensuring watertightness, and the crotch portion and the light guide portion are optically connected outside the pipe. In the case of adopting this method, for example, a crotch portion is provided in the injection portion, and an injection hole (in addition to the crotch portion) can be inserted through the opening of the pipe, and a packing or an O-ring is introduced into the crotch portion ( O-ring) and other sealing structures, and can be directly fixed by bolts/nuts or fixed by flanges.

Furthermore, the water purifier 100d is further provided with: detecting means for detecting the flow of water in the water purifier body 110d; and controlling means for the flow of water detected by the detecting means The state is used to control the start of the light source. The water purifier 100d of the present embodiment includes a detecting unit 201 that is provided in the water inlet pipe 113 and a switch 202 that turns on and off between the switching power source 203 and the light source 160d. The detecting unit 201 detects the flow rate of the raw water in the water inlet pipe 113d, determines the flow state of the raw water and the water stop state, and generates a control signal for switching the power input/off to the switch 202 or toward the light source 160d. That is, the detecting unit 201 constitutes the detecting means and the control means.

The detecting unit 201 maintains the switch 202 in the on state while the water is in the water stop state. But not limited to this, The detector 201 can also set the switch 202 to be turned on after a predetermined predetermined time has elapsed after detecting the water stop. Thereby, it is possible to prevent bacterial growth inside the water purifier at the time of stopping the water. Further, when it is judged that the raw water is in the flowing state, the detecting unit 201 sets the switch 202 to be turned off, and stops the light source 160d from emitting light.

In such a configuration, the water purifiers 100, 100a, 100b, and 100c of the respective embodiments described with reference to Figs. 1 to 4 are also applicable.

6 to 8 are cross-sectional views showing the vicinity of the faucet of the piping of the optical transmission system using different aspects, respectively.

Fig. 6 is a cross-sectional view showing a piping in the vicinity of an emitting portion of the optical transmission system 1a, which includes an ultraviolet irradiation space 8a. The space 2a in the piping in this portion is defined by a metal pipe 3a, and an optical fiber collimator 9 is disposed inside the pipe 3a as an injection portion. The optical fiber collimator 9 is passed through a hole provided in the pipe 3a, and is optically connected to an optical fiber extending from the pressure-resistant connector 7a that is hermetically fixed to the inside of the pipe. The optical fiber extending from the pressure-resistant connector 7a toward the outside of the pipe is optically connected to the light-emitting port of the optical fiber 5a of the light guiding portion in a coupler 6a. The optical fiber 5a extends to a light entrance pupil (not shown) where the other end portion is present, and the ultraviolet light emitted from the ultraviolet light source (not shown) is taken in from the light entrance pupil and transmitted in the optical fiber 5a. The light-emitting yoke and the pressure-resistant connector 7a are emitted from the optical fiber collimator 9 as parallel light. The ultraviolet ray that has been emitted is advanced while being reflected by the inner wall surface of the pipe 3a made of the ultraviolet ray reflective material, and is irradiated to the inside of the pipe in the ultraviolet ray irradiation space 8a. The air and/or purified water 4a is thereby sterilized.

Fig. 7 is a cross-sectional view showing a piping in the vicinity of an emitting portion in the optical transmission system 1b, and this portion includes an ultraviolet irradiation space 8b. In this portion, the space 2b in the pipe is defined by a metal pipe 3b, and the diffusion lens 10 is disposed inside the pipe 3b as an injection portion. The diffusion lens 10 is inserted through a hole provided in the pipe 3b, and is optically connected to an optical fiber extending from the pressure-resistant connector 7b that is hermetically fixed to the inside of the pipe. The optical fiber extending from the pressure-resistant connector 7b toward the outside of the pipe is optically connected to the light-emitting port of the optical fiber 5b belonging to the light guiding portion in the connector 6b. The optical fiber 5b extends to a light incident frame (not shown) where the other end portion is present, and the ultraviolet light emitted from the ultraviolet light source (not shown) is taken in from the light incident beam and transmitted through the optical fiber 5b. The light-emitting element and the pressure-resistant connector 7b are emitted from the diffusion lens 10 as diffused light. The ultraviolet ray that has been emitted is advanced while being reflected by the inner wall surface of the pipe 3b made of the ultraviolet ray reflective material, and is irradiated to the air and/or the purified water 4b existing in the pipe to be sterilized.

Fig. 8 is a cross-sectional view showing a piping in the vicinity of an injection portion in the optical transmission system 1c, and the portion includes an ultraviolet irradiation space 8c. In this portion, the space 2c in the pipe is defined by a metal pipe 3c, and the light guide plate 11 is disposed inside the pipe 3c as an injection portion. The light guide plate 11 is optically connected to the optical fiber extending from the pressure-resistant connector 7c fixed to the hole provided in the pipe 3c toward the pipe on the side surface thereof. From pressure connector 7c The optical fiber extending outside the pipe is optically connected to the light-emitting port of the optical fiber 5c belonging to the light guiding portion in the connector 6c. The optical fiber 5c extends to a light entrance pupil (not shown) where the other end portion is present, and the ultraviolet light emitted from the light source (not shown) is taken in from the light entrance pupil and transmitted through the optical fiber 5c. The light-emitting plate 11 and the pressure-resistant connector 7c are emitted from the light guide plate 11 as diffused light. The ultraviolet ray that has been emitted is advanced while being reflected by the inner wall surface of the pipe 3c made of the ultraviolet ray reflective material, and is irradiated to the air and/or the purified water 4c existing in the pipe to be sterilized.

100‧‧‧Water purifier

110‧‧‧Water purifier body

111‧‧‧Shell

112‧‧‧ Raw water inlet

113‧‧‧Inlet pipe

114‧‧‧ purified water outlet

115‧‧‧ District partition

120‧‧‧ Filters for water purifiers

130‧‧‧Adsorption Department

131‧‧‧Adsorption materials

140‧‧‧Warm Wire Processing Department

141‧‧‧ hollow fiber membrane

142‧‧‧Shell (first shell)

143‧‧‧UV transmission section (first ultraviolet transmission section)

150‧‧‧ link flow path

151‧‧‧Upstream side cover

152‧‧‧ downstream side cover

153‧‧‧Seal members

160‧‧‧Light source (ultraviolet light source)

161‧‧‧Ultraviolet light-emitting diode

162‧‧‧Optical transmission system

163‧‧‧Light Guide

164‧‧‧ shot out

170‧‧‧Flow

171‧‧‧Flow components

180‧‧‧Internal space

181‧‧‧ Raw water into the space

A‧‧‧ raw water

B‧‧‧Adsorption treatment water

C‧‧‧ purified water

Claims (11)

A water purifier for purifying raw water and having: a water purifier body; a filter cartridge for a water purifier, detachably mounted in the water purifier body; and an ultraviolet light source; the water purifier The system includes a casing having a raw water inlet and a purified water outlet; and the filter unit for the water purifier includes an adsorption unit for treating the raw water flowing from the raw water inlet by the adsorption member and obtaining the adsorption. Treating water; the hollow fiber processing unit is configured to treat the adsorbed treated water and obtain purified water by a hollow fiber membrane housed in the first casing, wherein the first casing has a first ultraviolet ray composed of an ultraviolet permeable material a transmission portion that connects the adsorption portion and the hollow fiber treatment portion, and the adsorption treatment water is guided to the hollow fiber treatment portion; the ultraviolet light source has an ultraviolet light emitting diode; The light source is disposed on the outer side of the ultraviolet ray transmitting portion so as to face the first ultraviolet ray transmitting portion, or is disposed to transmit the light source emitted from the light source. Outside of the light guide and the light emitting portion for emitting ultraviolet rays of the transport system to be transmitted, and in the outer portion through the first ultraviolet to the ultraviolet light through the first The above-described emitting portion is disposed so as to face the portion of the first casing, and the surface of the adsorbed water or the adsorbed treated water and the hollow fiber which are present inside the first casing is irradiated with ultraviolet rays. The water purifier according to claim 1, wherein the connection flow path is formed inside the adsorption unit, and a light guide portion for transmitting ultraviolet light emitted from the light source and an emission for emitting the transmitted ultraviolet light are attached. In the optical transmission system of the unit, the emitting portion is disposed inside the connecting channel, and the surface of the adsorbed water or the adsorbed water and the adsorbing member present in the connecting channel is irradiated with ultraviolet rays. The water purifier according to claim 1, wherein the adsorbing member is housed in the second casing having the second ultraviolet ray transmitting portion made of the ultraviolet ray permeable material, whereby the outer periphery of the adsorbing member and the second portion are The connection flow path is formed between the inner circumferences of the casing, and a raw water supply flow path for supplying raw water is formed inside the adsorption member, and the second ultraviolet transmission portion is formed outside the second ultraviolet ray transmissive portion. The light source is disposed opposite to the light source or has a light guiding portion for transmitting ultraviolet light emitted from the light source and an light transmitting portion for emitting the emitted ultraviolet light, and is disposed outside the second ultraviolet light transmitting portion The emitting portion is disposed to face the second ultraviolet ray transmitting portion, and the surface of the adsorbed water or the adsorbed water and the adsorbing member present in the connecting channel is irradiated with ultraviolet rays. The water purifier according to any one of claims 1 to 3, further comprising: a flow path member, wherein one end is connected to the purified water outlet, and the other end is attached to the net When the water filter is filtered, the filter is densely sealed with the water filter of the water purifier to form a flow path; and the light guide portion for transmitting the ultraviolet light emitted from the light source and the ultraviolet light to be emitted are attached. In the light transmission system of the injection unit, the injection unit is disposed inside the flow path, and the purified water existing in the flow path member is irradiated with ultraviolet rays. The water purifier according to any one of claims 1 to 3, further comprising: a flow path member having a third ultraviolet ray transmitting portion made of an ultraviolet ray permeable material, wherein the flow path member is one end a portion connected to the purified water outlet port, and the other end portion is watertightly connected to the filter for the water purifier when the water filter for the water purifier is installed to form a flow path, and is configured to be the third ultraviolet ray The light source is disposed on the outer side of the transmissive portion so as to face the third ultraviolet ray transmissive portion, or the light guide portion for transmitting the ultraviolet ray emitted from the light source and the light transmitting portion for emitting the emitted ultraviolet ray is attached In the system, the emitting portion is disposed so as to face the third ultraviolet ray transmitting portion outside the third ultraviolet ray transmitting portion, thereby irradiating the purified water existing in the flow path member with ultraviolet rays. The water purifier according to any one of claims 1 to 5, wherein the water purifier has an internal space, and the light source is disposed in the internal space, and the internal space is provided with the filter for the water purifier. At the time of palpitations, it is in contact with at least the outer surface of the first ultraviolet ray transmitting portion, and the raw water does not flow in. The water purifier according to claim 6, wherein the internal space has a blowing means that communicates with an outside of the water purifier body to cool the light source disposed in the internal space by external air. The water purifier as claimed in any one of claims 1 to 7, further comprising: detecting means for detecting the flow of water in the body of the water purifier; and controlling means by means of the aforementioned detecting The flow state of the water detected by the measuring means performs the starting control of the aforementioned light source. The water purifier according to claim 8, wherein the detecting means is for determining a flowing state and a water stopping state; and the controlling means is for starting the light source when the water stopping state is performed. A filter cartridge for a water purifier according to any one of claims 1 to 9, further comprising: an adsorption unit having an adsorption member and being treated by the adsorption member Obtaining treated water from the raw water flowing in from the raw water inlet; The hollow fiber processing unit houses a hollow fiber membrane in a first casing having a first ultraviolet ray transmitting portion made of an ultraviolet ray permeable material, and permeable to the hollow fiber for allowing the adsorption treatment water to pass through the hollow fiber membrane The treatment process obtains purified water; and the connection flow path connects the adsorption unit and the hollow fiber treatment unit, and guides the adsorption treatment water to the hollow fiber treatment unit. The filter cartridge for a water purifier according to claim 10, wherein the adsorbing member is a molded body comprising a composition, and the forming system of the composition contains activated carbon, a heavy metal adsorbing member, and a binder; and the forming system is The water-permeable film, sheet or nonwoven fabric is coated; the pressure-sensitive adhesive and the water-permeable film, sheet or nonwoven fabric are composed of an ultraviolet-ray transparent resin.