WO2010004027A1

WO2010004027A1 - Device for the sterilization of water and use of said device

Info

Publication number: WO2010004027A1
Application number: PCT/EP2009/058819
Authority: WO
Inventors: Berthold Conradt; Ron Kemmer
Original assignee: Brita Gmbh
Priority date: 2008-07-10
Filing date: 2009-07-10
Publication date: 2010-01-14
Also published as: DE102008040336A1; AR072717A1; TW201002626A

Abstract

The invention relates to a device for the sterilization of water, comprising an UV lamp (50) and at least one receptacle which has an inlet (32) and an outlet (34) and can be flown through by water, a reaction chamber (35) being arranged in said receptacle. According to the invention, the outlet (34) of the receptacle (30) forms a clear outlet. The outlet (34) of the receptacle (30) is situated in the radiation region of the UV lamp (50).

Description

Device for disinfecting water and using the same

The invention relates to a device for the sterilization of water with a UV lamp and at least one water-flowable, a Einiass and an outlet having a vessel in which a reaction chamber is arranged, wherein the outlet of the vessel forms a free outlet. The invention also relates to the use of such a device.

Such a free outlet forms a Wasserentnahmesteile or tap, where the treated water can be removed by the user.

The known sterilization equipment for the so-called point-of-use use, d. H. Use at the point of use, are chamber reactors, which are usually made of stainless steel or aluminum. The reactors are often cylindrical and have two connections for the water inlet and for the water outlet. At the outlet, a pipe is connected, which leads to the tap. In the middle of the reactors is a linear low-pressure mercury lamp. This UV lamp must be replaced at regular intervals to ensure that the required radiant power is always available for effective disinfection.

From US 4,769,131 a sterilizing device is known, in which in a housing centrally a UV lamp is arranged, which is surrounded by a hose coil which terminates in corresponding connection fittings in the housing wall. The tube coils form the reaction chamber and are irradiated by the UV lamp. To replace the lamp, a plate must be removed at the end of the housing become. The lamp is then pulled out of the inside of the tube.

The Ausiass can be connected directly to a tap or other suitable extraction means. These downstream components can re-germ. In addition, this sterilization device can be preceded by a conventional filter cartridge.

The reaction chamber can also be formed by grooves in the housing of the degerminator, in which case the UV lamp is surrounded by a two-part housing jacket.

From US 2004/0182761 A1 a sterilizing device is known, which provides a combination of filter and UV lamp, in a water-bearing housing, inter alia, an annular Kohiebiock is arranged, in which the UV lamp is located. To replace the UV lamp, first open the housing and then remove the Kohiebiock from the water in the housing. The water in the coal block runs out of it during removal and contaminates the surroundings of the unit. Several hand movements are required until the UV lamp to be replaced is accessible. In addition, the water-carrying Teiie of the device in an exchange of the coal basin and / or UV lamp are free and are touched by the user and thus contaminated.

Another disadvantage is the large footprint of the device and in the space required for installation and removal of the UV lamp. A terminal installation in known water-dispensing devices is not useful, weii the space requirement on the tap parts would be very large. This is impractical, unaesthetic and economically meaningless. Examples would be the installation in a refrigerator door integrated in the refrigerator door. th water dispenser or installation in a water cooler with the dimensions of a tabletop device.

In the devices of this and the preceding document also the chamber internal volume is very large, which has the disadvantage that such Entkβimungsgeräte can be operated unlawfully after a device that produces cooled drinking water. Because the water in the reaction chamber of the degerminator is usually outside the cold room and is warm. In addition, there is no possibility in any of the known devices, the water in the reaction chamber and / or the lamp via a cooling element, such as. B. to cool by a heat dissipation.

From EP 1 440941 B1 a water treatment device for beverage dispenser for dispensing drinking water is known. The device comprises a section of a water pipe as a reaction chamber, wherein upstream of the outlet of the water pipe, which forms a tapping point for removing the sterilized water, and parallel to the water pipe, a UV lamp is arranged. The tapping parts themselves are located outside the irradiation range of the UV lamp and are provided with a protective element for protection against contamination by the user.

If necessary, the UV lamp can only be exchanged with relatively great effort. The reaction chamber is obviously fixed and therefore needs to be cleaned from time to time. Explanations of this problem are not found in EP 1 440 941 B1 anyway. The performance of this device is so far poor in relation to their size, because the reaction chamber is only partially filled with water by the upstream air inlet. It is therefore an object of the invention, based on EP 1 440941 B1, to provide a sterilization device in which recontamination of the drinking water downstream of the reaction zone is readily eliminated by a possible subsequent or recontamination.

This object is achieved with a degermination device comprising a UV lamp and at least one vessel through which water can flow, a vessel having a reactor and an outlet having a reaction chamber, wherein the outlet of the reaction chamber forms a free outlet and thus a water outlet and wherein the outlet of the vessel is located in the radiation area of the UV lamp.

The Ausiass can be located directly or indirectly in the radiation range of the UV lamp. The UV lamp and the outlet are preferably designed and arranged such that the outlet of the vessel is located directly in the radiation area of the UV lamp. UV lamp and Ausiass are arranged spatially adjacent accordingly.

There is also the possibility of directing the UV radiation of the lamp to the outlet of the vessel, if it is not located in the immediate radiation range of the UV lamp. For this purpose, means for guiding the UV radiation, for example reflector means may be provided which the UV Radiation lead to the outlet of the vessel. In this case, the Ausiass is indirectly in the radiation range of the UV lamp.

Since the Ausiass of the vessel also forms the tapping point, the user can fill the treated water directly from the opening into his drinking vessel. Since the Ausiass of the vessel and thus the tapping point itself is in the radiation range of the UV lamp is eliminates any possible re-entrainment immediately. Eventual contamination by the user, eg. B. by touching the outlet area, the quality of the water can not be affected.

A further improvement can be achieved if the outlet of the vessel is set back in relation to an opening of a housing in which the vessel is located.

Preferably, the vessel does not have any dead spaces from the beginning of the reaction chamber to the outlet of the vessel. The reaction chamber begins in the flow direction behind the inlet of the vessel. The vessel has no Verbindungsseiemente that could form dead spaces for the water.

A further improvement is preferably achieved in that the outlet of the vessel, in particular the inner surface of the outlet which comes into contact with the water, has a hydrophobic surface. This measure has the advantage that deposits and germs adhere to schiechter. This further complicates the formation of plaque, which would reduce radiation intensity, and biofilm growth. If the spout partially drains after the water is removed, no wetting water film remains, in which germination can occur.

In the region of the reaction chamber, the vessel preferably has at least one turn through which water can flow. A plurality of windings may, for example, be arranged meander-shaped adjacent to the UV lamp. The individual turns can be aligned perpendicular or parallel to the longitudinal direction of the UV lamp. Preferably, the region of the reaction chamber of the vessel from a helix, in particular from a screw turn! formed, which can be designed as a pipe or Schlauchwendei. The UV lamp is arranged in the central area of the helix. The helix has the advantage that the entire water to be treated passes through as long as possible a defined distance in the irradiation range of the UV lamp, whereby very uniform flow ratio θ and good rolling of the water are ensured by the turning shape. This contributes to optimum performance with minimal reaction chamber volume. The wall thickness of the helix is preferably in the range of 0.1 to 0.5 mm. The advantage of this measure is that the UV radiation is minimized. The flow cross-section and the length of the water guide in the reaction chamber are preferably selected so that the internal reactor volume is less than 120 ml. Particularly advantageous is a reactor internal volume less than 40 ml.

When the degerminator is operated by a device that produces cooled drinking water, the amount of water in the reaction chamber is kept low so that the consumer will find enough cool water in the first withdrawn glass.

At least in the region of the reaction chamber and / or the outlet, the vessel preferably consists of a hydrophobic material, in particular of a hydrophobic polymer.

Preferably, the vessel is at least in the region of the reaction chamber and / or the outlet of a Fiuoropolymer such. B.PFA (perfluoroalkoxy vinyl ether polymer resin), MFA (perfluoroalkoxymethyl vinyl ether polymer resin), FEP (fluorinated ethylene propylene copolymer), PTFE (polytetrafluoroethylene), THV (terpolymer of tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride). The vessel may according to a particular embodiment consist of a UV-C-resistant injection molded part, which can be used in the assembly of the sterilization device in a housing or a container.

Preferably, the outlet of the vessel has an outlet piece. The end region of the vessel, in particular in the case of a hose coil, must generally be curved in the direction of the outlet in order to ensure a perfect position of the outlet of the vessel within a housing or a container. The production process, combined with a high degree of safety, can be simplified by attaching a prefabricated discharge piece to the outlet. The outlet piece as well as its connection area with the vessel are likewise located in the irradiation area of the UV lamp. The spout is preferably made of the same material as the vessel and is also transparent to the UV-C radiation. This effectively prevents bacterial contamination on the connecting piece between the outlet piece and the vessel.

Preferably, the vessel is surrounded by a reflecting means in the UV region. Between the wall of the cartridge and the vessel and / or in the outlet section of the cartridge, a Refiektormittel reflecting in the UV range may be provided. Due to the back reflection in the direction of the UV lamp, the reaction chamber is again detected by the UV radiation. The efficiency of the water sterilization device is improved or the overall length can be shortened for the same emission performance.

Preferably, the refiecting means is a reflective coating on the outer wall of the vessel. As Bβschichtungsmaterialen come in particular metals, such as. As aluminum, chromium, nickel, and Fluoropolymers and materials which supported metal oxides and Metailsaize in question.

According to a particular embodiment, the reflector means may be a reflective component, such as, e.g. Example, a sleeve which is inserted into the cartridge and / or the vessel, or a film, in particular a metal foil, a reflective plastic film in the UV region or a metallized plastic film. The sleeve may for example consist of metal, in particular aluminum.

The UV lamp and the vessel may be arranged in a common cartridge, wherein the cartridge preferably has at least attachment means for releasable attachment to a connection device and connection means for the supply of electricity and water from a connection device.

The fasteners and / or the Anschiussrnitte! are preferably pluggable and / or rotatable, in particular insertable and / or screwed formed.

The cartridge is preferably designed exchangeable.

It is therefore preferable to provide all connection means on one side of the cartridge. As a result, only one assembly cut, z. As the insertion or insertion of the cartridge to a connection device required. The Befestigungsmittei are preferably arranged on the same side of the cartridge.

As Befestigungsmittei locking and / or bayonet means are preferably provided, which allow a quick replacement of the cartridge. By integrating both the vessel with the reaction chamber and the UV lamp in a common cartridge, a single compact component is created, which is independently manageable and can be easily replaced by the user. Damage to the UV lamp during installation and removal is avoided because it is located inside the cartridge and thus not directly accessible to the user. The cartridge is autonomously operable, ie it is operable without limitation of its functionality and there is no need for an additional housing or the like into which the cartridge must be inserted in order to operate it.

The cartridge is a replaceable component that can be disposed of as a whole.

The cartridge is a closed container which has at least one inlet for the liquid to be treated and at least one outlet for the liquid to be treated. This achieves a further advantage, which is that the user has no contact with the internal water-carrying components, in particular with those downstream of the reactor, so that contamination is effectively avoided.

Preferably, the UV lamp and the vessel are arranged captive in the cartridge, so that when removing or installing the cartridge, the components in question can not accidentally fall out of the cartridge. The captive arrangement does not exclude a detachable arrangement.

According to one weathered embodiment, the UV lamp and the vessel are arranged undetachably in the cartridge. The permanent mounting in the cartridge means that the user can not remove the lamp from the cartridge, which does not preclude separation of the components as part of recycling.

The exchange of the cartridge, the vessel, with the reaction chamber and the outlet is replaced with the lamp so that at regular intervals, which are preferably based on the exchange cycles of the UV lamp, and the Reaktionskammβr is renewed. A separate cleaning of the reaction chamber to remove deposits is not required. The risk of failure by contributing is avoided.

The dimensioning of the cartridge is significantly smaller than that of the known sterilization equipment, so that an installation, preferably a terminal installation, z. B. in refrigerators with conventional dimensions, is possible. The Innenvoiumen the reaction chamber is much smaller, so that the amount of warm water at the beginning of the removal is low, which is particularly advantageous in connection with refrigerators

Preferably, the cartridge has an opening located in the cartridge wall in which the outlet of the vessel is located.

To completely eliminate contamination by the user, it is advantageous if the outlet of the vessel is set back relative to the opening of the cartridge. This measure offers an additional advantage because the cartridge wall in the opening area prevents the UV radiation from exiting the opening.

In the case of a cartridge, the reflector means may also be a coating on the inner surface of a cartridge wall. Another embodiment provides that the reflector means is for example a sleeve which is inserted into the cartridge or a metal grid. This sleeve can protrude from the cartridge and, for example, in a Anschfusseinrichtung, in which the cartridge is inserted, are detected and used as a thermal bridge. If the reflector center! For example, with a cooled area or a region with a lower temperature or a cooling element is connected, as is possible, inter alia, in a refrigerator, cooling inside the cartridge and thus cooling the water and / or the UV lamp to simple Be brought about manner.

This thermal bridge can also be realized by a thermally conductive element, which is preferably led out of the cartridge. This may for example be a heat pipe, such as. For example, a heatpipe. The thermally conductive element may be in the area of the connection center! the cartridge protrude from this. The heat-conducting element can be arranged, for example, on the vessel wall or on the reflective component, in particular on the sleeve.

The fastening means and the connection means may be provided at one end of the cartridge or according to another embodiment on a side wall of the cartridge.

The outlet may be provided on a bottom wall of the cartridge or on a side wall of the cartridge.

The arrangement of the connection means, the fastening means and optionally the heat-conducting element and the outlet depends on the installation position of the cartridge. The cartridge can be horizontal or be inserted vertically in a corresponding connection device.

The UV lamp preferably has a lamp sock! on, which has the connection means for the supply of electricity. The connection means may be, for example, metal pins. Other connection means for the supply of electricity are then not required, because the already existing lamp socket can be used. The cartridge can be further simplified.

The control electronics can be located outside the cartridge. When installing the sterilization device in a refrigerator, the control electronics can be integrated into the control electronics of the refrigerator.

Other ways to accommodate the control electronics are the connection device or the lamp base of the UV lamp. When housed in the lamp base, the control electronics can be individually tailored to the lamp type and thus may also different UV lamps installed or plugged into the existing connection device.

A preferred use of the water disinfection device is provided in refrigerators, in particular refrigerators. This includes the use in beverage dispensers, Coolem and Chillem.

Exemplary embodiments of the invention are explained below with reference to the drawings. Show it:

1 shows a perspective view of a cartridge with associated connection device, FIG. 2 shows a further embodiment of a cartridge,

FIG. 3 shows a further embodiment of a cartridge,

Figure 4.5 perspective, enlarged views of the vessel with Ausiass and

Figure 6 is a perspective view of a connection device.

FIG. 1 shows a device for sterilizing water, which has a cartridge 10, in which the vessel 30 is arranged in the form of a helical coil 36. The section designed as a helix 36 includes the reaction chamber 35 through which the water to be treated flows.

The cartridge 10 has a cylindrical side wall 12, at the upper end 16, a flange is provided with fastening means 20, which may be designed for example as a bayonet or Rastelelemente. Details of Befestigungsmittei 20 are not shown in Figure 1.

At the upper end 16 of the cartridge, an inlet opening is provided, through which the inlet 32 of the vessel 30 is led out. At the lower end 18 of the cartridge 10, the bottom wall 27 is conically shaped and forms a discharge portion 28a with an opening 26. In this opening 26, the Ausiass 34 of the vessel 30 is set back, thereby preventing the user direct contact with the Ausiass 34th can produce. The Ausiass 34 forms together with the opening 26 of the cartridge 10 e \ nβ tap or water tap. This is indicated by the drop shown below the opening 26. In the central area of the turnaround! 36 is the UV lamp 50, which emits its UV power radially and thus in the turn! 36 flowing water irradiated. The windings 37 of the turning end 36 almost completely surround the lamp 50, so that most of the UV power of the UV lamp 50 penetrates into the reaction chamber 35. The lamp 50 and the blower 34 are arranged such that the outlet 34 is in the irradiation area of the UV lamp. In the lower region, the UV lamp 50 radiates not only radially but in all directions, so that the Ausiass 34 is detected. The tapered outlet portion 28a has the advantage that the UV radiation detecting the outlet is largely retained in the cartridge 10 and only a small portion can escape through the opening 26. The emerging UV radiation is reduced substantially to the radiation component located in the outgoing water jet.

The side wall 12 and the outlet section 28a are provided with a coating 40 reflecting in the UV-C region, in particular for the sterilization-relevant radiation range of the lamp. When using low-pressure mercury lamps, this affects the radiation at 254 nm.

At the upper end, the UV lamp 50 has the lamp base 52 with the connection means 24 for power. Separate connection means does not have the cartridge 10 for this purpose, since the already existing connection means of the lamp cap 52 are used. In addition, the control electronics 54 of the lamp 50 are arranged in the lamp base 52. Details regarding the fastening of the coil 36 and the UV lamp 50 within the cartridge 10 have been omitted for reasons of clarity. Both components are preferably held by means of precisely fitting injection-molded parts. Above the cartridge 10 is a suitable connection device 1 with housing 2 into which the cartridge 10 is inserted. For this purpose, the connection device 1 also has corresponding fastening means 3, which may comprise, for example, the second part of a bayonet closure or a latching device.

Furthermore, the connection device 1 contains a water connection 4 and a flow connection 5, which interact with the corresponding connection means 22 and 24 of the cartridge 10 when the cartridge 10 is inserted into the connection device 1 and / or screwed. The Anschiusseinrichtung 1 is supplied via the water hose 6 and the power cable 7. The Anschiusseinrichtung 1, for example, in a beverage dispenser with cooling device, such. As a refrigerator or cooler, be mounted.

In the figure 2 a wertere embodiment of the cartridge 10 is shown. Also in this embodiment, a vertical installation is provided. The cartridge 10 is closed at the upper and lower ends 16, 18 each with a wall and also has a cylindrical side wall 12. The arrangement of the vessel 30 with the reaction chamber 35 and the UV lamp 50 with lamp base 52 corresponds to the arrangement according to FIG. 1. Inside the cartridge 50 between vessel 30 and side wall 12, a component 41a reflecting in the UV region is in shape a sleeve 42 which encloses the coil 38. In the lower region, a thermally conductive element 44 is arranged in the form of a guided through the cartridge wall to the outside pin.

The UV radiation emitted by the UV lamp 50 penetrates the helix 36 with the windings 37 and is reflected back on the reflective sleeve 42 inwards, so that the reflected UV radiation again penetrates the reaction chamber 30. In contrast to the Entkeimungsvorrichtυng according to Figure 1, the inlet 32 is provided in the lower region and the flow direction of the water to be sterilized is from bottom to top. For this reason, the fastening means 20 and the connection means 22 and 24 are arranged laterally at the lower end on the cartridge wall 12. There is also the heat-conducting element 44 is provided. The fastening means 20, which are not gestgesteift in detail, allow a horizontal insertion of the Fitterkartusche 10. The lamp 50 is also from below into the interior of the turn! 36 inserted.

At the upper end 16 of the cartridge 10, an outlet section 28b is integrally formed on the side of the cartridge wall 12, in which a horizontally arranged connecting section 39 of the vessel 30 is arranged, at the end of which the outlet 34 is located. The outlet portion 28b has an opening 26, opposite to the Ausiass 34 is arranged set back.

The outlet portion 28b is provided with a reflective member 41b in the form of a coated film to guide the UV radiation from the lamp to the outlet 34.

FIG. 3 illustrates another embodiment of a cartridge 10, which is installed horizontally. In contrast to FIG. 1, a discharge section 28c is integrally formed laterally on the sachet wall 12; within this discharge section is the outlet 34 of the reaction chamber 30.

In FIG. 4, the vessel 30 with the reaction chamber 35 is shown enlarged. The end of the last turn 37 is curved approximately tangentially, so that a downwardly directed Ausiass 34 is formed. In the outlet 34, a spout 38 is inserted, which also from UV-C traπsparβntem material is how the vessel 30. The arrows indicate that the UV light emitted by the UV lamp 50 located in the center of the coil 36 irradiates the outlet 34 and also the outlet piece 38.

The outlet piece 38 is conical and may at the lower end have a Lippenverschiuss 60, which opens automatically at the outlet of the water jet. The conical extension in connection with the lip seal 60 has the advantage that UV radiation, which is guided within the turns 37 to the outlet 34, is retained and thus can not be trapped to the outside.

FIG. 5 shows a further embodiment which only differs from the embodiment of FIG. 4 in the trigger piece 38. The Ausiassstück 38 is pushed onto the Ausiass 34 of the vessel 30.

A further embodiment of a connection device 1 for the horizontal installation of a cartridge 10 is shown in perspective in FIG. The connection device 1 has a cylindrical housing 2, which merges into a trough-shaped section 2a in the front region. On the inner wall of the trough-shaped portion 2a is a fastening means 3, which cooperates with a corresponding fastening means on the cartridge and holds the cartridge in the trough-shaped portion 2a. On the rear wall of the housing 2, the water connection 4 and the power foot 5 are provided. LIST OF REFERENCE NUMBERS

reflective coating reflective component

Sleeve heat-conducting element

UV lamp

lamp base

control electronics

lip closure

Claims

claims

Device for disinfecting water with a UV lamp (50) and at least one, of water-permeable, a Einiass (32) and an exhaust (34) having vessel (30) in which a reaction chamber (35) is arranged, wherein the Outlet (34) of the vessel (30) forms a free outlet, characterized in that the Aυsiass (34) of the vessel (30) in the radiation region of the UV lamp (50) is located

Apparatus according to claim 1, characterized in that the vessel (30) from the beginning of the reaction chamber (35) to Ausiass (34) of the vessel has no un-penalized dead spaces.

Apparatus according to claim 1 or 2, characterized in that the Ausiass (34) of the vessel (30) has a hydrophobic surface.

Device according to one of claims 1 to 3, characterized in that the vessel in the region of the reaction chamber (30) has at least one water-flowable turn (37).

Device according to one of claims 1 to 4, characterized in that the vessel (30) at least in the region of the reaction chamber (35) and / or the outlet (34) consists of a hydrophobic material.

Device according to one of claims 1 to 5, characterized in that the vessel (30) at least in the region of the reaction chamber (35) and / or the outlet (34) consists of a Fluoropoiymer. Device according to one of claims 1 to 6, characterized in that the vessel (30) is an injection molded part (31).

Device according to one of claims 1 to 7, characterized in that the Auesiass (34) of the vessel (30) has a discharge piece (38).

Device according to one of claims 1 to 8, characterized in that between the side wall (12) of the cartridge (10) and the vessel (30) and / or Ausiaufabschnitt (28a, b, c) of the cartridge (10) in the UV Area reflective Reflθktormittθ! is provided.

Apparatus according to claim 9, characterized in that the reflector means is a reflective coating (40) on the inner surface of the cartridge wall (12) or the outer wall of the vessel (30)

Apparatus according to claim 9, characterized in that the reflector means is a reflective component (41a, b).

Apparatus according to claim 11, characterized in that the reflective component (41a) is a sleeve (42).

Apparatus according to claim 12, characterized in that the sleeve (42) consists of metal.

Apparatus according to claim 13, characterized in that the sleeve (42) consists of aluminum. Apparatus according to claim 9, characterized in that the reflective component (41a, b) is a film.

Device according to one of claims 1 to 15, characterized in that the UV lamp (50) and the vessel (30) in a cartridge (10) are arranged together.

Device according to one of claims 1 to 16, characterized in that the cartridge (10) fastening means (20) for releasably attaching to a connection device (1) and Anschfussmittel (22, 24) for the supply of electricity and water from a connection device ( 1)

Device according to one of claims 16 or 17, characterized in that the UV lamp (50) and the vessel (30) are arranged captive in the cartridge (10).

Device according to one of claims 16 or 17, characterized in that the UV lamp (50) and the vessel (30) are arranged undetachably in the cartridge (10).

Device according to one of claims 16 to 19, characterized in that the cartridge (10) in a cartridge wall (12, 27) has an opening (26) in which the outlet (34) of the vessel (30) is located.

Device according to one of claims 16 to 20, characterized in that the outlet (34) of the vessel (30) with respect to the opening (26) of the cartridge (10) is set back. Device according to one of claims 10 or 15 to 21, characterized in that a heat-conducting element (44) is provided, which is led out of the cartridge (10).

Device according to one of claims 17 to 22, characterized in that the fastening center! (20) and the connection means (22, 24) at one end (16, 18) of the cartridge (10) are arranged.

Device according to one of claims 17 to 23, characterized in that the fastening means (20) and the connection means (22, 24) on a side wall (12) of the cartridge (10) are provided.

Device according to one of claims 16 to 24, characterized in that the Ausläse (34) on a bottom wall (27) of the cartridge (10) is arranged.

Device according to one of claims 16 to 24, characterized in that the Ausiass (34) on a side wall (12) of the cartridge (10) is provided.

Device according to one of claims 1 to 26, characterized in that the UV lamp (50) has a lamp cap (52), the connecting center! (24) for the supply of electricity.

Apparatus according to claim 27, characterized in that the lamp base (52) includes control electronics (54) of the UV lamp (50). Use of a water sterilization device according to claim 1 in a refrigerator.

Use of a water sterilization device according to claim 29 in a refrigerator.