SE544934C2 - A radiation device for disinfection of objects comprising an uv-radiation trap arrangement - Google Patents

Abstract

The present invention relates to a radiation device (I) configured for disinfection of objects (200) by means of ultraviolet (UV) radiation. The radiation device comprises an enclosure member (E) configured to provide an enclosure for enclosing objects (200) to be disinfected, and a radiation emitting arrangement (100) arranged inside said enclosure member (E) for providing said radiation. Said enclosure member (E) comprises an opening (O) for receiving objects to be disinfected and a closure element (20) for closing said opening (O). Said closure element (20) is operable between an open position in which said opening (O) is accessible, and a closed position in which said enclosure is provided. Said radiation device (I) further comprises an UV-radiation trap arrangement (A1; A2; A3; A4; A5; A6) configured to be arranged in connection to said opening (O) in the closed position of said closure element (20) so as to affect radiation direction of said UV-radiation such that UV radiation is prevented to escape from said provided enclosure.

Description

TECHNICAL FIELD The present invention relates to a radiation device configured for disinfection of objects by means of ultraviolet radiation.

BACKGROUND Viruses and bacteria transmitted in stores, public rooms, hospitals and other places are costly and at times deadly. Research studies report that pathogens can survive in cases up to 3 or even 9 days. ln some cases, such as that one of hospitals, the bacteria and viruses are known to significantly differ to those found elsewhere and can be resistant to treatments such as antibiotics. ln stores and public rooms, there are a lot of human presence and touching of materials, whereby the transmission rate of viruses and bacteria requires substantial cleaning and in cases this cleaning does not effectively remove pathogens.

Many viruses and bacteria can lead to severe illnesses and death by infections or diseases. These are transmitted by direct and indirect human contact. For example, like many viruses COVID-19 is transmitted by the droplets and fluid when an infected person coughs or sneezes. Research on related coronaviruses shows that the viruses can live for several days on surfaces and items. Similarly, many bacteria can be transmitted through direct or indirect contact with a reservoir of infectious bacteria and they can survive outside of a host and on products and surfaces to remain contagious for extended periods of time.

Significant costs are associated to infections. The problem with many viruses and bacteria are that many people do not experience symptoms and move in public spaces. Combined with that many of the viruses and bacteria are highly contagious, the risk is epidemical and pandemic outbreaks.

Efforts to eradicate or remove contaminates such as virus and bacteria from products and materials have varied in applicability and success. Personal hygiene and washing hands with chlorhexidine gluconate and povidone-iodine solutions and distancing from contagious contact points have been advocated, but proven difficult and transmission still occurs.

The use of antiseptics in terms of soap, alcohol-based fluid, boric acid, and benzalkonium chloride and iodine are also evident. The problem is that many may be adding to the problem by inducing antibiotic resistance. Moreover, many products and surfaces such as keyboard, touchscreens, or handles are very difficult and almost impossible to sterilize by liquid disinfectants without a negative influence on the electronics that the product is based upon.

UVC radiation has been used in different applications for sterilization and disinfection. There is however a safety concern related to UVC radiation. Exposure to UVC radiation may be of a health concern for humans, since it can lead to damage to skin and cause severe acute damage to the eye.

There is thus a need for providing a radiation device which facilitates safe radiation operation by means of ultraviolet radiation in connection to disinfection of certain objects.

OBJECTS OF THE INVENTION An object of the present invention is to provide a radiation device configured for disinfection of objects by means of ultraviolet radiation which facilitates safe radiation operation.

SUMMARY This and other objects, apparent from the following description, are achieved by a radiation device, as set out in the appended independent claim. Preferred embodiments of the radiation device are defined in appended dependent claims.

According to the invention the objects are achieved by a radiation device configured for disinfection of objects by means of ultraviolet (UV) radiation. The radiation device comprises an enclosure member configured to provide an enclosure for enclosing objects to be disinfected, and a radiation emitting arrangement arranged inside said enclosure member for providing said radiation. Said enclosure member is configured to form a space for housing said objects. Said enclosure member comprises an opening for receiving objects to be disinfected and a closure element for closing said opening. Said closure element is operable between an open position in which objects may be introduced into and removed from said space through said opening, and a closed position in which said enclosure is provided. Said radiation device further comprises an UV-radiation trap arrangement configured to be arranged in connection to said opening in the closed position of said closure element so as to affect radiation direction of said UV-radiation such that UV radiation is prevented to escape from said provided enclosure. Said tlifflraciiaiiion irao arranoernent contorises one or more Liv-radiation trao elements confidured to be connected to andfoit be a oortioii of said closure eieiiwent andfoi* one or indre Uti-radiation trap elements confioured to be connected to andior be a oortion oi the ecioe or edde ooittioits of said ooeniitio. soon that said one or indre LFV» radiation trap eieitienis. in the closed nosition of said closure elenieiit, are arranoed in connection to said ooeninci so as to affect radiation direction of said UX/ïradiation for said oreveniion of tlvïradiation esoaoind froin said provided enclosure. Said one or more LFV-radiation tree elernents of said tlv~ radiation iitao arranoeiiwent have en extension essentially oorresoondino io the extension of the edge or edge portions of said opening artdfor are configured to protrude in the direction of the opening.

Hereby the radiation device may be operated in a safe way in that the risk of UV-radiation escaping from the enclosure provided by said closure element, e.g. a door, a |id or the like, is prevented. Hereby requirements associated with closing of the closure element comprising force required to provide the closed position may be reduced. Hereby requirements associated with pressure and compression of the closure element in the closed position may be reduced, and even not required. Hereby sealing requirements associated with providing an enclosure by means of the closure element in the closed position of the closure element may be reduced.

According to an aspect of the radiation device, said UV-radiation trap arrangement is configured to be arranged in connection to at least portions of the edge of said opening in the closed position of said closure element. Hereby the risk of UV-radiation escaping from the enclosure provided by said closure element may be provided in an efficient way, thus increasing safety in connection to operation of said radiation device.

As stated above, said UV- radiation trap arrangement comprises one or more UV-radiation trap elements configured to be connected to and/or be a portion of said closure element and/or one or more UV-radiation trap elements configured to be connected to and/or be a portion of the edge or edge portions of said opening, such that said one or more UV-radiation trap elements, in the closed position of said closure element, are arranged in connection to said opening so as to affect radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure. By thus providing one or more UV-radiation trap element arranged in such a way, radiation direction may be efficiently affected so that the risk of UV-radiation escaping from the enclosure provided by said closure element is prevented in an efficient way, thus increasing safety in connection to operation of said radiation device.

According to an aspect of the radiation device, one or more UV-radiation trap elements configured to be connected to and/or be a portion of said closure element, in the closed position of said closure element, are arranged internally relative to the edge or edge portions of said opening protruding into said space so that one side of said at least one UV-radiation trap element is facing an inner side portion of the edge of said opening so as to affect radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure. By thus providing one or more UV-radiation trap element arranged in such a way, radiation direction may be efficiently affected so that the risk of UV-radiation escaping from the enclosure provided by said closure element is prevented in an efficient way, thus increasing safety in connection to operation of said radiation device. Hereby an existing radiation device may be easily updated by attaching one or more elements to the inner side of the closure element configured to face the opening in the closed position of the closure element.

According to an aspect of the radiation device, one or more UV-radiation trap elements configured to be connected to and/or be a portion of said closure element, in the closed position of said closure element, are arranged to be received in one or more recess portions (12R) of the edge of said opening so as to affect radiation direction of said UV-radiation for said prevention of UV- radiation escaping from said provided enclosure. By thus providing one or more UV-radiation trap element arranged in such a way, radiation direction may be efficiently affected so that the risk of UV-radiation escaping from the enclosure provided by said closure element is prevented in an efficient way, thus increasing safety in connection to operation of said radiation device.

According to an aspect of the radiation device, one or more UV-radiation trap elements configured to be connected to and/or be a portion of said closure element, in the closed position of said closure element, are arranged externally relative to the edge or edge portions of said opening protruding so that one side of said at least one UV-radiation trap element is facing an outer side portion of the edge of said opening so as to affect radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure. By thus providing one or more UV-radiation trap element arranged in such a way, radiation direction may be efficiently affected so that the risk of UV-radiation escaping from the enclosure provided by said closure element is prevented in an efficient way, thus increasing safety in connection to operation of said radiation device.

According to an aspect of the radiation device, one or more UV-radiation trap elements configured to be connected to and/or be a portion of the edge or edge portions of said opening, such that said one or more UV-radiation trap elements, in the closed position of said closure element, are arranged to be received in one or more recess portions of said closure element so as to affect radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure. By thus providing one or more UV- radiation trap element arranged in such a way, radiation direction may be efficiently affected so that the risk of UV-radiation escaping from the enclosure provided by said closure element is prevented in an efficient way, thus increasing safety in connection to operation of said radiation device.

According to an aspect of the radiation device, one or more UV-radiation trap elements configured to be connected to and/or be a portion of the edge or edge portions of said opening, such that said one or more UV-radiation trap elements, in the closed position of said closure element, are arranged externally relative to the edge or edge portions of said closure element, protruding so that one side of said at least one UV-radiation trap element is facing an outer side portion of the closure element so as to affect radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure. By thus providing one or more UV-radiation trap element arranged in such a way, radiation direction may be efficiently affected so that the risk of UV-radiation escaping from the enclosure provided by said closure element is prevented in an efficient way, thus increasing safety in connection to operation of said radiation device.

Aeeerfešaxe---te--ee---eseeet--ef--the--reešietâee--eev-ieefixe stated above, said one or more UV-radiation trap elements of said UV-radiation trap arrangement have an extension essentially corresponding to the extension of the edge or edge portions of said opening andier are cenfiqured te pretrude än the direction of the opening. By thus having eeeieean extension of said one or more UV- radiation trap elements eeeentieâlv cerrespeitdine te the extension et" the edge er eeee portions of sašci epeswšswe, radiation direction of said UV-radiation may be efficiently affected so that the risk of UV-radiation escaping from the enclosure is efficiently prevented. Said UV-radiation trap elements may thus have a longitudinal configuration.

Aeeerfešaxe»te»ae»eeeeet-ef-tee--radietiee--eeviee;-eeieš»eee-er-eftere--íeiftfflifeeietiee tre-e-eiemeete-ef-eeieš»eiäiefladieàiee--teae-eififeneement-ere-eeefšg-eree-te-er-eizreee By thus having said one or more UV-radiation trap elements protruding in the direction of the opening; radiation direction of said UV-radiation may be efficiently affected so that the risk of UV-radiation escaping from the enclosure is efficiently prevented. According to an aspect of the radiation device, said one or more UV-radiation trap elements of said UV- radiation trap arrangement, for an opening having a ring shaped, e.g. frame shaped, configuration where said ring shaped configuration forms a plane, are configured to protrude in a direction essentially orthogonal to said plane.

According to an aspect of the radiation device, inner surface portions of the enclosure member have reflective properties for facilitating said disinfection, wherein said one or more UV-radiation trap elements of said UV-radiation trap arrangement have material properties being less reflective than said inner surface portions and/or surface configurations further affecting radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure. By thus providing UV-radiation trap elements having such material properties and/or surface configurations, prevention of UV- radiation escaping from said provided enclosure is further improved, thus providing safe operation. Surface configurations of UV-radiation trap elements may be provided by a structural surface, i.e. a non-smooth surface, which may be essentially independent of wave length of said UV-radiation when affecting the direction. Surface configurations of UV-radiation trap elements may be provided by an uneven surface provided by e.g. by a thorny surface, bumpy surface, rough surface, lumpy surface or the like.

According to an aspect of the radiation device, said one or more UV-radiation trap elements of said UV-radiation trap arrangement comprise material having UV-radiation absorbing properties.

According to an aspect of the radiation device, the ultraviolet radiation is ultraviolet C (UVC) radiation.

DESCRIPTION OF THE DRAWINGS For a better understanding of the present disclosure reference is made to the following detailed description when read in conjunction with the accompanying drawings, wherein like reference characters refer to like parts throughout the several views, and in which: Fig. 1a schematically illustrates a front view ofa radiation device, with a closure element in an open position, according to an aspect of the present disclosure; Fig. 1b schematically illustrates a front view of the radiation device in fig. 1a, with the closure device in a closed position, according to an aspect of the present disclosure; Fig. 1c schematically illustrates side view of the radiation device in fig. 1b, with the closure device in a closed position, according to an aspect of the present disclosure; Fig. 2a schematically illustrates a plan view of a portion of an enclosure member of a radiation device with an UV-radiation trap arrangement, according to an aspect of the present disclosure; Fig. 2b schematically illustrates a plan view of a portion from fig. 2a illustrating the UV-radiation trap arrangement in more detail, according to an aspect of the present disclosure; Fig. 3 schematically illustrates a plan view ofa portion ofan enclosure member of a radiation device with an UV-radiation trap arrangement, according to an aspect of the present disclosure; Fig. 4 schematically illustrates a plan view ofa portion ofan enclosure member of a radiation device with an UV-radiation trap arrangement, according to an aspect of the present disclosure; Fig. 5 schematically illustrates a plan view ofa portion ofan enclosure member of a radiation device with an UV-radiation trap arrangement, according to an aspect of the present disclosure; and Fig. 6 schematically illustrates a plan view ofa portion ofan enclosure member of a radiation device with an UV-radiation trap arrangement, according to an aspect of the present disclosure.

DETAILED DESCRIPTION The present disclosure relates to a radiation device configured for disinfection of objects by means of ultraviolet (UV) radiation. The radiation device comprises an enclosure member configured to provide an enclosure for enclosing objects to be disinfected. The radiation device further comprises a radiation emitting arrangement arranged inside said enclosure member for providing said radiation. The radiation device is configured for disinfection of objects by means of ultraviolet radiation. According to an aspect of the radiation device, the ultraviolet radiation is ultraviolet C (UVC) radiation.

Said enclosure member is configured to form a space for housing said objects. Said enclosure member may be any suitable enclosure member for housing objects to be disinfected by means of a radiation emitting arrangement inside said enclosure member. Said enclosure member is configured to form an UV- chamber for said disinfection of objects by means of UV radiation. Said enclosure member is configured to form a UVC-chamber for said disinfection of objects by means of UVC radiation.

Said enclosure member comprises an opening for receiving objects to be disinfected and a closure element for closing said opening. Said closure element is operable between an open position in which objects may be introduced into and removed from said space through said opening, and a closed position in which said enclosure is provided.

According to an aspect of the present disclosure, said enclosure member may be any suitable enclosure member for housing objects to be disinfected by means ofa radiation emitting arrangement inside said enclosure member. Said enclosure member may comprise or be comprised of any suitable housing configuration. Said enclosure member may comprise or be comprised of a box, a house or the like and may have any suitable geometrical shape such as box- shaped, cubical, cylindrical, spherical, semi-spherical, oval, semi-oval or the like.

According to an aspect of the present disclosure, said opening may have any suitable shape such as rectangular, oval, circular, polygonal, or the like. Said opening may be arranged at any suitable location of said enclosure member, e.g. on a side of the enclosure member or on top of the enclosure member.

According to an aspect of the present disclosure, said closure element may be any suitable enclosure member such as a door, a lid or the like. Said closure element may have any suitable shape so as to provide said closure of saidopening. Said shape and configuration of said closure is adapted to the shape and configuration of said opening. Said closure element may comprises a handle for opening and closing said opening. Said closure element may be configured for automatic opening and closing of said opening, e.g. by means of a sensor arrangement.

Said closure element may be connected to a housing portion of said enclosure member in any suitable way so as to facilitate said operation between said open position and said closed position. Said closure element may be pivotably connected to said housing portion, in connection to said opening, in any suitable way, e.g. by hinge means or the like, so as to facilitate said operation between said open position and said closed position. Said closure element may be removably connected to said housing portion in connection to said opening.

According to an aspect of the present disclosure, said radiation emitting arrangement may be any suitable radiation emitting arrangement for emitting UV radiation. According to an aspect, said radiation emitting arrangement may comprise a set of radiation emitting sources for emitting UV radiation. According to an aspect of the radiation device, the set of radiation emitting sources may comprise or constitute a set of light emitting diodes (LEDs) configured for emitting UVC radiation. According to an aspect, said radiation emitting arrangement may comprise a radiation operation device for operating the radiation emitting arrangement.

One or more inner surface portions of said enclosure member may have reflective properties so as to reflect radiation from the radiation emitting arrangement for facilitating and improving disinfection of objects within said space.

The object to be disinfected may be any suitable object. The object may, according to an aspect of the present disclosure, be a shopping cart. The object may, according to an aspect of the present disclosure, be a shoppingbasket. The object may, according to an aspect of the present disclosure, be a self scanning arrangement for self check out in stores. Such a self scanning arrangement may comprise a wheel equipped carrier for supporting and where applicable connecting scanners having been used by e.g. people in a store having performed self scanning of goods.

Said radiation device further comprises an UV-radiation trap arrangement configured to be arranged in connection to said opening in the closed position of said closure element so as to affect radiation direction of said UV-radiation such that UV radiation is prevented to escape from said provided enclosure. According to an aspect of the present disclosure, said UV-radiation trap arrangement may be configured to be arranged in connection to said opening in the closed position of said closure element so as to change radiation direction of said UV-radiation such that UV radiation is prevented to escape from said provided enclosure. Herein the term “affect radiation direction” may comprise “influence radiation direction” and “change radiation direction”. Said UV-radiation trap arrangement may have a geometrical configuration in connection to said opening in the closed position of said closure element so as to affect radiation direction of said UV-radiation such that UV radiation is prevented to escape from said provided enclosure. According to an aspect of the present disclosure, said UV-radiation trap arrangement is configured to be arranged in connection to at least portions of the edge of said opening in the closed position of said closure element. According to an aspect of the present disclosure, said UV-radiation trap arrangement comprises one or more radiation trap elements configured to be arranged in connection to at least portions of the edge of said opening in the closed position of said closure element. According to an aspect of the present disclosure, said one or more radiation trap elements may be arranged in any suitable way in connection to at least portions of the edge of said opening in the closed position of said closure element in order to influence the radiation direction so that no escape of radiation from the enclosure is possible during operation when said closure element is in the closed position. According to an aspect of the presentdisclosure, said one or more radiation trap elements may have any suitable geometrical configuration in connection to said opening in the closed position of said closure element so as to affect radiation direction of said UV-radiation such that UV radiation is prevented to escape from said provided enclosure.

Fig. 1a schematically illustrates a front view of a radiation device I, with a closure element 20 in an open position, according to an aspect of the present disclosure; fig. 1b schematically illustrates a front view of the radiation device I in fig. 1a, with the closure device 20 in a closed position, according to an aspect of the present disclosure; and, fig. 1c schematically illustrates side view of the radiation device I in fig. 1b, with the closure device 20 in a closed position, according to an aspect of the present disclosure.

The radiation device I comprises an enclosure member E configured to provide an enclosure for enclosing objects to be disinfected.

The radiation device further comprises a radiation emitting arrangement 100 arranged inside said enclosure member for providing said radiation. The radiation device I is configured for disinfection of objects 200 by means of ultraviolet radiation. According to an aspect of the radiation device I, the ultraviolet radiation is ultraviolet C (UVC) radiation.

Said enclosure member E is configured to form a space S for housing said objects 200. Said enclosure member E has according to this exemplary embodiment a box-shaped configuration.

Said enclosure member E comprises an opening O for receiving objects 200 to be disinfected and a closure element 20 for closing said opening O. Said closure element 20 is operable between an open position, illustrated in fig. 1a, in which objects may be introduced into and removed from said space S through said opening O, and a closed position, illustrated in fig. 1b-c, in which said enclosure is provided. Said closure element 20 is according to this example pivotably connected to said housing portion 10, in connection to saidopening O, so as to facilitate said operation between said open position and said closed position.

Said closure element 20 has an inner side 20a configured to face said opening O in the closed position of said closure element 20. Said closure element 20 has an outer side 20b, essentially opposite to said inner side 20a, said outer side being configured to face away from the opening O in the closed position of said closure element Said enclosure member E comprises a housing portion 10 comprising said opening O. Said housing portion 10 has an edge O10 surrounding said opening O. Said opening O thus has an edge O10. According to an aspect of said disclosure said edge O10 has a ring-shaped configuration. According to the exemplary embodiment illustrated in fig. 1a-b said edge O10 of said opening O has a frame-configuration, here a rectangular configuration, surrounding said opening O.

Said housing portion 10 comprises opposite walls 12, 14, an upper portion 16, e.g. roof portion, and an opposite lower portion 18 or bottom portion 18, surrounding said opening O. Said opposite walls 12, 14 comprises a left wall 12 having a left inner surface 12a, a portion of said left inner surface 12a providing a left inner surface portion of said opening O. Said opposite walls 12, 14 comprises a right wall 14 having a right inner surface 14a, a portion of said right inner surface 14a providing a right inner surface portion of said opening O. Said upper portion 16 has an upper inner surface 16a, a portion of said upper inner surface 16a providing an upper inner surface portion of said opening O. Said lower portion 18 has a lower inner surface 18a, a portion of said lower inner surface 18a providing a lower inner surface portion of said opening O. Said opposite walls 12, 14, upper portion 16 and opposite lower portion 18 of said housing portion 10 thus provides a set of inner surface portions of said opening O.

Said radiation device I further comprises an UV-radiation trap arrangement A1 configured to be arranged in connection to said opening O in the closed position of said closure element 20 so as to affect radiation direction of said UV-radiation such that UV radiation is prevented to escape from said provided enclosure. Said enclosure member E is thus provided with said UV-radiation trap arrangement A1. Said enclosure member E may comprise said UV- radiation trap arrangement A1 _ According to an aspect of the present disclosure, said UV-radiation trap arrangement A1 comprises one or more UV-radiation trap elements 30 configured to be connected to and/or be a portion of said closure element 20 such that said one or more UV-radiation trap elements 30, in the closed position of said closure element 20, see e.g. fig. 1b-c, are arranged in connection to said opening O so as to affect radiation direction of said UV- radiation for said prevention of UV-radiation escaping from said provided enclosure.

According to an aspect of the present disclosure, said one or more UV- radiation trap elements 30 of said UV-radiation trap arrangement A1 have an extension essentially corresponding to the extension of the edge O10 or edge portions of said opening O.

According to an aspect of the present disclosure, illustrated as an embodiment in fig. 1a-c, said one or more UV-radiation trap elements 30 is provided by an UV-radiation trap element 30 configured to be arranged on the inner side 20a of said closure element 20. According to an aspect of the present disclosure, illustrated as an embodiment in fig. 1a-c, said UV-radiation trap element 30 is configured to extend around the inner side 20a of said closure element 20 in a frame-like configuration, see fig. 1a.

According to an aspect of the present disclosure, illustrated as an embodiment in fig. 1a-c, said UV-radiation trap element 30 is configured to extend around the inner side 20a of said closure element 20 such that, in the closed positionof said closure element 20, said UV-radiation trap element 30 is arranged internally relative to the edge 010 of said opening O.

According to an aspect of the present disclosure, said one or more UV- radiation trap elements 30 of said UV-radiation trap arrangement A1 are configured to protrude in the direction D of the opening O, see fig. 1c.

According to an aspect of the present disclosure said UV-radiation trap element 30 is configured to extend around the inner side 20a of said closure element 20 such that, in the closed position of said closure element 20, said UV-radiation trap element is arranged internally relative to the edge O10 of said opening O, protruding into said space S so that one side of said UV- radiation trap element is facing an inner side portion of the edge of said opening O.

According to an aspect of the present disclosure, said frame shaped UV- radiation trap element 30 comprises a set of frame portions 32, 34, 36, 38. Said set of frame portions comprises a first frame portion 32 and an opposite second frame portion 34. Said opposite frame portions 32, 34 have a longitudinal extension and are arranged to run essentially parallel to each other at a distance from each other on the inner side 20a of said closure element 20. When said closure element 20 is connected to said housing portion 10, said first frame portion 32 and opposite second frame portion 34 are arranged to run essentially vertically.

Said set of frame portions comprises a third frame portion 36 and an opposite fourth frame portion 38. Said opposite frame portions 36, 38 have a longitudinal extension and are arranged to run essentially parallel to each other at a distance from each other on the inner side 20a of said closure element 20. Said opposite third and fourth frame portions 36, 38 have a longitudinal extension and are configured to connect to said first and second frame portions 32, 34 so as to form said frame-shaped configuration of said UV-radiation trap element 30. When said closure element 20 is connected to said housingportion 10, said third frame portion 36 and opposite fourth frame portion 38 are arranged to run essentially horizontally in connection to said vertical first and second frame portions 32, 34. When said closure element 20 is connected to said housing portion 10, said third frame portion 36 provides an upper frame portion and said fourth frame portion 38 provides a lower frame portion.

Said first frame portion 32 has an outer side 32a configured to face away from said second frame portion 34 and an opposite inner side 32b configured to face towards said second frame portion 34. Said second frame portion 34 has an outer side 34a configured to face away from said first frame portion 32 and an opposite inner side 34b configured to face towards said first frame portion Said third frame portion 36 has an outer side 36a configured to face away from said fourth frame portion 38 and an opposite inner side 36b configured to face towards said fourth frame portion 38. Said fourth frame portion 38 has an outer side 38a configured to face away from said third frame portion 36 and an opposite inner side 38b configured to face towards said third frame portion According to an aspect of the present disclosure said set of frame portions 32, 34, 36, 38 of said UV-radiation trap element 30 is configured to extend around the inner side 20a of said closure element 20 such that, in the closed position of said closure element 20, said set of frame portions 32, 34, 36, 38 of said UV-radiation trap element 30 are arranged internally relative to a corresponding set of inner surface portions of the edge 010 of said opening O, so as to affect radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure.

According to an aspect of the present disclosure said set of frame portions 32, 34, 36, 38 of said UV-radiation trap element 30 is protruding into said space S, in the closed position of said closure element 20, so that said outer side 32a of said first frame portion 32 is facing the inner surface portion of the inner side 12a of said right wall 12 of the housing portion 10. See fig. 1b.According to an aspect of the present disclosure said set of frame portions 32, 34, 36, 38 of said UV-radiation trap element 30 is protruding into said space S, in the closed position of said closure element 20, so that said outer side 34a of said second frame portion 34 is facing the inner surface portion of the inner side 14a of said left wall 14 of the housing portion 10. See fig. 1b.

According to an aspect of the present disclosure said set of frame portions 32, 34, 36, 38 of said UV-radiation trap element 30 is protruding into said space S, in the closed position of said closure element 20, so that said outer side 36a of said third frame portion 36 is facing the inner surface portion of the inner side 16a of said upper portion 16 of the housing portion 10. See fig. 1b.

According to an aspect of the present disclosure said set of frame portions 32, 34, 36, 38 of said UV-radiation trap element 30 is protruding into said space S, in the closed position of said closure element 20, so that said outer side 38a of said fourth frame portion 38 is facing the inner surface portion of the inner side 18a of said lower portion 18 of the housing portion 10. See fig. 1b.

According to an aspect of the present disclosure, inner surface portions of the inner sides 12a, 14a, 16a, 18a and 20a of the enclosure member E may have reflective properties for facilitating said disinfection.

According to an aspect of the present disclosure, said UV-radiation trap element 30 of said UV-radiation trap arrangement A1 have material properties being less reflective than said inner surface portions and/or surface configurations further affecting radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure.

According to an aspect of the present disclosure one or more of said outer sides 32a, 34a, 36a, 38a of said set of frame portions 32, 34, 36, 38 of said UV-radiation trap element 30 may have surface configurations further affecting radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure.According to an aspect of the present disclosure one or more of said inner surface portions of said inner sides 12a, 14a, 16a, 18a of said wall, upper and lower portions 12, 14, 16, 18 of said housing portion 10 may have surface configurations further affecting radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure. Said UV- radiation trap arrangement A1 may thus comprise said one or more of said inner surface portions of said inner sides 12a, 14a, 16a, 18a surface configurations further affecting radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure.

Fig. 2a schematically i||ustrates a plan view of a portion of an enclosure member E of a radiation device with an UV-radiation trap arrangement A2, according to an aspect of the present disclosure, and fig. 2b schematically i||ustrates a plan view of a portion P from fig. 2a illustrating the UV-radiation trap arrangement A2 in more detail, according to an aspect of the present disclosure.

The plan view in fig. 2a-b may be a cut off plan view of a portion of an enclosure member E viewed from above, but without roof portion such that the closure element 20, here a portion of the closure element 20, and a portion of a wall portion 12 of the housing portion of the enclosure member E are viewed from above. The portion of the wall portion 12 shows a portion of the edge 010 of the opening O of said enclosure member E. The plan view in fig. 2a may be a cross sectional view of a box-shaped enclosure member E, e.g. a box shaped enclosure member as illustrated in fig. 1a-c, with a wall portions and upper and lower portions forming an opening on a side on which a closure elementsuch as a door in a closed position is facing the opening O.

According to the embodiment illustrated in fig. 2a-b, one or more UV-radiation trap elements 30, here illustrated with a portion of an UV-radiation trap element 30, configured to be connected to and/or be a portion of said closure element 20, in the closed position of said closure element 20, are arranged internally relative to the edge or edge portions of said opening O protruding into said space S so that one side of said at least one UV-radiation trap elements 30 is facing an inner side portion of the edge 010 of said opening O so as to affect radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure.

A specific embodiment of such a solution is exemplified in fig. 1a-c.

The closure element 20 has an inner side 20a facing towards said opening O and an opposite outer side 20b facing away from said opening O. According to an aspect of the present disclosure, said UV-radiation trap element 30 is configured to protrude from said inner side 20a of said closure element According to an aspect of the present disclosure said UV-radiation trap element 30 is protruding into said space S, in the closed position of said closure element 20, so that an outer side 30a of said UV-radiation trap element 30 is facing an inner surface portion of the inner side 12a of a portion 12 of a housing portion 10 of the enclosure member E. Thus, the surface of said outer side 30a of said UV-radiation trap element 30 is configured to face said inner surface portion of the inner side 12a of said portion 12 of the housing portion Said inner surface portion of the inner side 12a of said portion 12 comprises an inner surface portion of an inner side portion O10a of the edge 010 of said opening O. Said inner side portion O10a of the edge O10 of said opening O is thus facing towards said opening O. Said inner side portion O10a of the edge O10 of said opening O may have an extension essentially orthogonal to the inner side 20a of said closure element. Said inner side portion O10a of the edge O10 of said opening O may have an extension essentially parallel to the extension of said UV-radiation trap element According to an aspect of the present disclosure, schematically illustrated in fig. 2b, said UV-radiation trap element 30 of said UV-radiation trap arrangement A2 may have surface configurations further affecting radiationdirection of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure.

According to an aspect of the present disclosure said outer side 30a of said UV-radiation trap element 30, schematically i||ustrated in fig. 2b, may have surface configurations further affecting radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure. Surface configurations of UV-radiation of the outer side 30a of said trap element 30 may be provided by a structural surface, i.e. a non-smooth surface, which may be essentially independent of wave length of said UV-radiation when affecting the direction. Surface configurations of the outer side 30a of said trap element 30 may be provided by an uneven surface provided by e.g. by a thorny surface, bumpy surface, rough surface, lumpy surface or the like, here schematically i||ustrated in fig. 2b.

According to an aspect of the present disclosure said inner side portion O10a of the edge 010 of said opening O may have surface configurations further affecting radiation direction of said UV-radiation for said prevention of UV- radiation escaping from said provided enclosure.

According to an aspect of the present disclosure, said UV-radiation trap element 30 of said UV-radiation trap arrangement A2 may have material properties being less reflective than said inner surface portions.

Fig. 3 schematically illustrates a plan view ofa portion ofan enclosure member E of a radiation device with an UV-radiation trap arrangement A3, according to an aspect of the present disclosure.

The plan view of said portion of said enclosure member E is according to an aspect essentially the same plan view as in fig. 2a. The enclosure member E of the radiation device with an UV-radiation trap arrangement A3 in fig. 3 differs from the enclosure member E in fig. 2a essentially by how UV-radiation trap element 30 of the UV-radiation trap arrangement A3 is arranged in connection to an opening O of the enclosure member E.According to the embodiment illustrated in fig. 3, one or more UV-radiation trap elements 30, here illustrated with a portion of an UV-radiation trap element 30, configured to be connected to and/or be a portion of said closure element 20, in the closed position of said closure element 20, are arranged to be received in one or more recess portions 12R of the edge 010 of said opening 0 so as to affect radiation direction of said UV-radiation for said prevention of UV- radiation escaping from said provided enclosure.

The closure element 20 has an inner side 20a facing towards said opening 0 and an opposite outer side 20b facing away from said opening 0. According to an aspect of the present disclosure, said UV-radiation trap element 30 is configured to protrude from said inner side 20a of said closure element According to an aspect of the present disclosure, said edge 010 of said opening has a recess portion 12R arranged in connection to a portion 12 of a housing portion 10 of said enclosure member E. According to an aspect of the present disclosure, said recess portion 12R is configured to run along at least a portion of said edge 010 of said opening. According to an aspect of the present disclosure, said recess portion 12R, in the closed positon of said closure element 20, is configured to face the inner side 20a of said closure element 20. According to an aspect of the present disclosure, said recess portion 12R may comprise opposite wall portions configured to run essentially parallel to the inner side 12a and opposite outer side 12b of said portion 12, and a bottom portion connecting said wall portions. Said wall portions could alternatively have any angled configuration relative to each other and relative to said inner and outer sides 12a, 12b.

According to an aspect of the present disclosure, said UV-radiation trap element 30 is protruding into said recess 12R, in the closed position of said closure element 20, so that an inner side 30b of said UV-radiation trap element 30 is facing surface portion the wall portion of said recess portion 12R facing away from said openingAccording to an aspect of the present disclosure, said UV-radiation trap element 30 of said UV-radiation trap arrangement A3 may have material properties being less reflective than said inner surface portions and/or surface configurations further affecting radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure.

According to an aspect of the present disclosure, said edge 010 or portions of said edge 010 may have material properties being less reflective than said inner surface portions and/or surface configurations further affecting radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure.

Fig. 4 schematically illustrates a plan view ofa portion ofan enclosure member E of a radiation device with an UV-radiation trap arrangement A4, according to an aspect of the present disclosure.

The plan view of said portion of said enclosure member E is according to an aspect essentially the same plan view as in fig. 2a. The enclosure member E of the radiation device with an UV-radiation trap arrangement A4 in fig. 4 differs from the enclosure member E in fig. 2a essentially by how UV-radiation trap element 30 of the UV-radiation trap arrangement A4 is arranged in connection to an opening 0 of the enclosure member E.

According to the embodiment illustrated in fig. 4, one or more UV-radiation trap elements 40 configured to be connected to and/or be a portion of the edge 010 or edge portions of said opening 0, in the closed position of said closure element 20, are arranged to be received in one or more recess portions 22R of said closure element 20 so as to affect radiation direction of said UV- radiation for said prevention of UV-radiation escaping from said provided enclosure.

The closure element 20 has an inner side 20a facing towards said opening 0 and an opposite outer side 20b facing away from said opening 0. The closure element 20 has an edge side 20c. According to an aspect of the presentdisclosure, said UV-radiation trap element 40 is configured to protrude from an edge side 010c of an edge portion of said edge 010 of said opening. Said edge side 010c is configured to face said inner side 20a of said closure element 20 in the closed position of said closure element According to an aspect of the present disclosure, said closure element 20 has a recess portion 22R configured to run along at least a portion of said closure element 20 in connection to said edge side 20c of said closure element 20. According to an aspect of the present disclosure, said recess portion 22R, in the closed positon of said closure element 20, is configured to face the edge side 010c of said edge portion of said edge 010 of said opening 0. According to an aspect of the present disclosure, said recess portion 22R may comprise opposite wall portions configured to run essentially parallel to the edge side 22c of said closure element 20, and a bottom portion connecting said wall portions. Said wall portions could alternatively have any angled configuration relative to each other and relative to the edge side 22c of said closure element According to an aspect of the present disclosure, said UV-radiation trap element 40 is protruding into said recess 22R, in the closed position of said closure element 20, so that an inner side 40b of said UV-radiation trap element 40 is facing a surface portion of the wall portion of said recess portion 22R facing towards said edge side 20c.

According to an aspect of the present disclosure, said UV-radiation trap element 40 of said UV-radiation trap arrangement A4 may have material properties being less reflective than said inner surface portions and/or surface configurations further affecting radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure.

According to an aspect of the present disclosure, said edge 010 or portions of said edge 010 may have material properties being less reflective than said inner surface portions and/or surface configurations further affecting radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure.

Fig. 5 schematically illustrates a plan view ofa portion ofan enclosure member E of a radiation device with an UV-radiation trap arrangement A5, according to an aspect of the present disclosure.

The plan view of said portion of said enclosure member E is according to an aspect essentially the same plan view as in fig. 2a. The enclosure member E of the radiation device with an UV-radiation trap arrangement A5 in fig. 5 differs from the enclosure member E in fig. 2a essentially by how UV-radiation trap element 30 of the UV-radiation trap arrangement A5 is arranged in connection to an opening 0 of the enclosure member E.

According to the embodiment illustrated in fig. 5, one or more UV-radiation trap elements 30 configured to be connected to and/or be a portion of said closure element 20, in the closed position of said closure element 20, are arranged externally relative to the edge 010 or edge portions of said opening 0 protruding so that one side 30b of said at least one UV-radiation trap element 30 is facing an outer side portion of the edge 010 of said opening 0 so as to affect radiation direction of said UV-radiation for said prevention of UV- radiation escaping from said provided enclosure.

The closure element 20 has an inner side 20a facing towards said opening 0 and an opposite outer side 20b facing away from said opening 0. The closure element 20 has an edge side 20c. According to an aspect of the present disclosure, said UV-radiation trap element 30 is configured to protrude from said inner side 20a of said closure element 20 in connection to said edge side 20c of said closure element According to an aspect of the present disclosure said UV-radiation trap element 30 is protruding externally to the edge 010 or edge portion of said opening 0, in the closed position of said closure element 20, so that an inner side 30b of said UV-radiation trap element 30 is facing an outer surface portionof the outer side 12b of a portion 12 of a housing portion 10 of the enclosure member E. Thus, the surface of said inner side 30b of said UV-radiation trap element 30 is configured to face said outer surface portion of the outer side 12b of said portion 12 of the housing portion Said outer surface portion of the outer side 12b of said portion 12 comprises an outer surface portion of an outer side portion 010b of the edge 010 of said opening 0. Said outer side portion 010b of the edge 010 of said opening 0 is thus facing away from said opening 0. Said outer side portion 010b of the edge 010 of said opening 0 may have an extension essentially orthogona| to the inner side 20a of said closure element 20. Said outer side portion 010b of the edge 010 of said opening 0 may have an extension essentially parallel to the extension of said UV-radiation trap element According to an aspect of the present disclosure, said UV-radiation trap element 30 of said UV-radiation trap arrangement A5 may have material properties being less reflective than said inner surface portions and/or surface configurations further affecting radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure.

According to an aspect of the present disclosure, said edge 010 or portions of said edge 010 may have material properties being less reflective than said inner surface portions and/or surface configurations further affecting radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure.

Fig. 6 schematically illustrates a plan view ofa portion ofan enclosure member of a radiation device with an UV-radiation trap arrangement, according to an aspect of the present disclosure.

The plan view of said portion of said enclosure member E is according to an aspect essentially the same plan view as in fig. 2a. The enclosure member E of the radiation device with an UV-radiation trap arrangement A6 in fig. 6 differs from the enclosure member E in fig. 2a essentially by how UV-radiation trapelement 40 of the UV-radiation trap arrangement A6 is arranged in connection to an opening 0 of the enclosure member E.

According to the embodiment illustrated in fig. 5, one or more UV-radiation trap elements 40 configured to be connected to and/or be a portion of the edge or edge portions of said opening 0, such that said one or more UV-radiation trap elements 40, in the closed position of said closure element 20, are arranged externally relative to the edge or edge portions of said closure element 20, protruding so that one side of said at least one UV-radiation trap element is facing an outer side portion of the closure element 20 so as to affect radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure.

The closure element 20 has an inner side 20a facing towards said opening 0 and an opposite outer side 20b facing away from said opening 0. The closure element 20 has an edge side 20c. According to an aspect of the present disclosure, said UV-radiation trap element 40 is configured to protrude from an edge side 010c of an edge portion of said edge 010 of said opening 0. Said edge side 010c is configured to face said inner side 20a of said closure element 20 in the closed position of said closure element 20. Said edge portion of said edge 010 of said opening 0 is a portion of a portion 12, here wall portion 12 of the housing portion 10 of the enclosure member E.

According to an aspect of the present disclosure, said UV-radiation trap element 40 is protruding externally to the edge side 20c of the closure element 20, in the closed position of said closure element 20, so that an inner side 40b of said UV-radiation trap element 40 is facing an outer surface portion of the edge side 20c of the closure element According to an aspect of the present disclosure said, UV-radiation trap element 40 is configured to protrude from the edge side 010c of an edge portion of said edge 010 of said opening 0 in connection to the outer side 12bof said portion 12 and hence an outer side 010b of the edge portion of the edge 010 of the opening Thus, said outer surface portion of the outer side 12b of said portion 12 comprises an outer surface portion of an outer side portion 010b of the edge 010 of said opening 0. Said edge side 20c of the closure element 20 is thus facing away from said opening 0. Said edge side 20c of the closure element 20 may have an extension essentially orthogonal to the edge side 010c of an edge portion of said edge 010 of said opening 0. Said edge side 20c of the closure element 20 may have an extension essentially parallel to the extension of said UV-radiation trap element According to an aspect of the present disclosure, said UV-radiation trap element 40 of said UV-radiation trap arrangement A6 may have material properties being less reflective than said inner surface portions and/or surface configurations further affecting radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure.

According to an aspect of the present disclosure, said edge 010 or portions of said edge 010 may have material properties being less reflective than said inner surface portions and/or surface configurations further affecting radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure.

Above different embodiments of an UV-radiation trap arrangement of a radiation device, said UV-radiation trap arrangement being configured to be arranged in connection to an opening in a closed position of a closure element so as to affect radiation direction of said UV-radiation such that UV radiation is Said different embodiments of said UV-radiation trap arrangement may be combined in any prevented to escape from said provided enclosure. suitable way.

The foregoing description of the preferred embodiments of the present invention has been provided for the purposes of illustration and description. ltis not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations will be apparent to practitioners skilled in the art. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, thereby enabling others skilled in the art to understand the invention for various embodiments and with the various modifications suited to the particular use contemplated.

Claims (10)

1. A radiation device (I) configured for disinfection of objects (200) by means of ultraviolet (UV) radiation, the radiation device comprising an enclosure member (E) configured to provide an enclosure for enclosing objects (200) to be disinfected, and a radiation emitting arrangement (100) arranged inside said enclosure member (E) for providing said radiation, said enclosure member (E) being configured to form a space (S) for housing said objects, wherein said enclosure member (E) comprises an opening (O) for receiving objects to be disinfected and a closure element (20) for c|osing said opening (O), said closure element (20) being operable between an open position in which objects may be introduced into and removed from said space (S) through said opening (O), and a closed position in which said enclosure is provided, said radiation device (I) further comprising an UV-radiation trap arrangement (A1; A2; A3; A4; A5; A6) configured to be arranged in connection to said opening (O) in the closed position of said closure element (20) so as to affect radiation direction of said UV-radiation such that UV radiation is prevented to escape from said provided enclosure, vvrierein said Utßradiation trao arranoenfent cornorises one or rnore tltirfiradiatiorw trao eiernents (303 confioored to be oonrieoted to andfor be a oortion of said oiosiire eienfent (203 andfor one or rnore tivaadiation trao eiernents (40: contioored to be oonneoted to ericiíor oe e oortion of itne edoe (010) or edoe oortions of said ooenino (O). such that said one or rnore Liv-radiation trao eiernents (30, 40), in tne cioeed oosition of said cioeiire eiernent (20), are arranoed in connection to said ooenind (G) eo ae to affect radiation direction of said tikflradiatiori for said prevention of Uvlradiatioiw esoaoino frorn said orovided erfoiosorre wherein said one or rnore Utflradietion tree eternerits (30, 40? of said Uti* radiation fran arranoeinent (At: A2' A3' A4' A5; A6) have an extension esseniiafiv eorresoondino to itne exterieion of tne edoe or edde oortions of said ooenino (Ü) ancilor are contidtired to orotrode in the direction of the ooenind (Q).

2. The radiation device according to claim 1, wherein said UV-radiation trap arrangement (A1; A2; A3; A4; A5; A6) is configured to be arranged in connection to at least portions of the edge (O10) of said opening (O) in the closed position of said closure element (20). The radiation device according to claim -âšf or 2, wherein one or more UV-radiation trap elements (30) configured to be connected to and/or be a portion of said closure element (20), in the closed position of said closure element (20), are arranged internally relative to the edge or edge portions of said opening (O) protruding into said space (S) so that one side of said at least one UV-radiation trap element is facing an inner side portion of the edge of said opening (O) so as to affect radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure. (The radiation device according to elašrf-'a---šš--er--4-any of cšaims 143, wherein one or more UV-radiation trap elements (30) configured to be connected to and/or be a portion of said closure element (20), in the closed position of said closure element (20), are arranged to be received in one or more recess portions (12R) of the edge (010) of said opening (O) so as to affect radiation direction of said UV-radiation for said prevention of UV- radiation escaping from said provided enclosure. The radiation device according to any of claims êrëlfi, wherein one or more UV-radiation trap elements (30) configured to be connected to and/or be a portion of said closure element (20), in the closed position of said closure element (20), are arranged externally relative to the edge or edge portions of said opening (O) protruding so that one side of said at least one UV-radiation trap element is facing an outer side portion of the edge (O10) of said opening (O) so as to affect radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure. The radiation device according to any of claims wherein one or more UV-radiation trap elements (40) configured to be connected to and/or be a portion of the edge or edge portions of said opening (O), such that said one or more UV-radiation trap elements (40), in the closed position of said closure element (20), are arranged to be received in one or more recess portions (22R) of said closure element (20) so as to affect radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure. The radiation device according to any of claims wherein one or more UV-radiation trap elements (40) configured to be connected to and/or be a portion of the edge or edge portions of said opening (O), such that said one or more UV-radiation trap elements (40), in the closed position of said closure element (20), are arranged externally relative to the edge or edge portions of said closure element (20), protruding so that one side of said at least one UV-radiation trap element is facing an outer side portion of the closure element (20) so as to affect radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure. The radiation device according to any of claims 3443111 wherein inner surface portions (10a, 20a) of the enclosure member (E) have reflective properties for facilitating said disinfection, wherein said one or more UV- radiation trap elements (30, 40) of said UV-radiation trap arrangement (A1; A2; A3; A4; A5; A6) have material properties being less reflective than said inner surface portions and/or surface configurations further affecting radiation direction of said UV-radiation for said prevention of UV-radiation escaping from said provided enclosure. The radiation device according to any of claims -šf-l--fi-íßm, wherein said one or more UV-radiation trap elements (30, 40) of said UV-radiation trap arrangement (A1; A2; A3; A4; A5; A6) comprise material having UV-radiation absorbing properties. A radiation device according to any of claims 1--4-23, wherein the ultraviolet radiation is ultraviolet C (UVC) radiation.