JP2018130131A - Inner sterilizing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inner sterilizing apparatus for surely sterilizing floating bacteria floating in an indoor space and adherent bacteria adhering to various places such as a floor surface, a wall surface, and an object surface.SOLUTION: An inner sterilizing apparatus according to the present invention comprises: a horizontal irradiation unit for irradiating ultraviolet rays in a substantially horizontal direction in the room; a downward irradiation unit for irradiating ultraviolet rays in at least one of the obliquely downward direction and the downward direction in the room; a connecting part connecting the horizontal irradiation unit and the downward irradiation unit to form a main body part; a mounting part capable of mounting the main body part to a wall surface; and a control part for controlling the ultraviolet irradiation from the horizontal irradiation unit and from the lower irradiation unit, respectively. The control part controls the ultraviolet irradiation of the horizontal irradiation unit and the downward irradiation unit based on at least one of the presence of a human body in the room and the necessity of indoor cleaning.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an indoor sterilizer that can sterilize bacteria and viruses contained in indoor air.

  In various facilities such as houses, offices, buildings, public facilities, hospitals, and nursing care facilities, it is important to deal with hygiene in order to be used by various people. In recent years, resistant bacteria have been generated, and there are concerns about infections and health effects caused by bacteria and viruses. In addition, in recent years, resistance to many bacteria and viruses tends to be weakened by hygiene-oriented strength.

  In addition, a plurality of people enter and exit these facilities, and unspecified visitors enter and exit. For this reason, bacteria and viruses are often brought in from the outside due to the entry and exit of these multiple people. In addition, these facilities are divided into a plurality of rooms. Such a room is partitioned into a certain size, and invading bacteria and viruses are likely to remain. These residual bacteria and viruses can affect the health of people in the room.

  Alternatively, a person affected by the bacterium or virus may exhale the bacterium possessed by coughing or sneezing, and the bacterium or virus may further increase in the room.

  In hospitals and nursing homes, there are patients with weak resistance, such as sick and elderly people, and hygiene measures are strongly required. Alternatively, even in a room such as a house, office, building, or public facility, maintenance of hygiene against bacteria and viruses is required due to the above situation. In particular, the recent hygiene orientation has reduced the durability of many people against bacteria and viruses. Under these circumstances, it is necessary to reduce bacteria and viruses in various facilities.

  In such a facility, it is highly necessary to reduce the influence of bacteria and viruses in the partitioned rooms as described above as well as a large shared space. In particular, since the staying time of a person in a partitioned room is long, there is a concern about being in a room with a lot of bacteria and viruses having an adverse effect on health.

  In order to alleviate the effects of bacteria and viruses in the room, air purifiers are being sold that suppress airborne bacteria and viruses by releasing special substances. For example, it is said that special substances such as ionic particles and nanoparticles are electrically released to reduce bacteria and viruses floating in the room.

  However, as disclosed in Non-Patent Document 1, such an air purifier that releases a special substance hardly shows a result of actively deactivating an influenza virus as a kind of virus. The same applies to other viruses.

  In many facilities, such an air cleaning device is used, but for the reasons described above, the effect of reducing bacteria and viruses is insufficient. For this reason, there is a problem inadequate in preventing the adverse effects of bacteria and viruses in the room.

  In such a situation, techniques for sterilizing bacteria and viruses using ultraviolet rays or the like have been proposed (see, for example, Patent Document 1, Patent Document 2, and Patent Document 3).

Journal of Japanese Society for Environmental Infections Vol. 27, No, 5, 2012 “Verification of the effectiveness of various air-cleaning electrical appliances that have sterilizing power against bacteria in the coated and dried state” JP 2005-46592 A JP 2004-283545 A Japanese Patent Laid-Open No. 8-280797

  Patent Document 1 discloses a robot cleaner that circulates on a floor surface and irradiates ultraviolet rays downward of the apparatus to sterilize the floor surface. This is a robot cleaner having a function of irradiating ultraviolet rays downward of the apparatus in place of the so-called dust collecting function of a commercially available robot cleaner. The robot cleaner disclosed in Patent Literature 1 sterilizes the floor surface with ultraviolet rays while traveling around the floor surface, thereby solving the problems of pathogenic bacteria and viruses that are likely to remain on the floor surface.

  However, the robot cleaner disclosed in Patent Document 1 only travels around the floor surface, and cannot travel evenly across the floor surface. For this reason, it has the problem that the area | region which cannot drive | work cannot be disinfected. In particular, the robot cleaner disclosed in Patent Document 1 only irradiates ultraviolet rays from the robot body toward the floor immediately below the body. Combined with this irradiation range, it is not possible to sterilize areas that cannot travel. By leaving an area that cannot be sterilized, the problem of pathogenic bacteria and viruses remaining on the floor remains unresolved.

  Moreover, even if the bacteria adhering to the floor surface can be sterilized, the floating bacteria floating in the room cannot be sterilized. Or the attached microbe adhering to the surface of objects (for example, furniture, a bed, etc.) other than a floor cannot be sterilized. Bacteria and viruses that cause health damage in the room are floating in the indoor space or attached to various places on the floor, wall surface, and surface of the object. Although sterilization of many of such floating bacteria and adhering bacteria is required in terms of hygiene, the technique of Patent Document 1 has a problem that can cope with only some adhering bacteria on the floor surface.

  Patent Document 2 discloses a vacuum cleaner that sterilizes a floor surface by irradiating ultraviolet rays while cleaning the floor surface with a cleaning brush. It aims at disinfecting the floor surface with ultraviolet rays as in Patent Document 1.

  However, as is apparent from the drawing of Patent Document 2, the vacuum cleaner disclosed in Patent Document 2 only irradiates ultraviolet rays to a dust collection position where the vacuum cleaner collects dust with a brush. For this reason, similarly to Patent Document 1, the vacuum cleaner disclosed in Patent Document 2 can also sterilize only the floor surface corresponding to the cleaned bottom surface. As a result, an area that cannot be sterilized remains on the floor surface, and the remaining pathogen and virus problems remain unresolved.

  Similarly to Patent Document 1, the technique of Patent Document 2 also has a problem that many of the attached bacteria attached to various surfaces of indoor floating bacteria, floor surfaces, wall surfaces, and objects cannot be sterilized. If many of these cannot be sterilized and only a part of the cleaned parts can be sterilized, the hygienic condition in the room cannot be maintained high.

  Patent Document 3 discloses a technique that is movable and sterilizes a floor surface with ultraviolet rays.

  However, Patent Document 3 has a problem that only the bottom surface that has traveled can be sterilized, as in Patent Documents 1 and 2.

  Naturally, as in Patent Documents 1 and 2, there is a problem that many of the adherent bacteria adhering to various surfaces of indoor floating bacteria, floor surfaces, wall surfaces, and objects cannot be sterilized. If many of these cannot be sterilized and only a part of the cleaned parts can be sterilized, the hygienic condition in the room cannot be maintained high.

  According to the inventor's analysis, there are both bacteria and viruses that are problematic in the indoor space, both floating bacteria floating in the indoor space and adherent bacteria adhering to the surface of various objects. It is necessary to improve and maintain hygiene.

  In view of the above problems, the present invention provides an indoor sterilizer that reliably sterilizes airborne bacteria floating in an indoor space and attached bacteria attached to various places such as a floor surface, a wall surface, and the surface of an object. For the purpose.

In view of the above problems, the indoor sterilization apparatus of the present invention includes a horizontal irradiation unit that irradiates ultraviolet rays in a substantially horizontal direction in a room,
A lower irradiation unit that irradiates at least one of the lower and lower sides of the room with ultraviolet rays;
A connecting portion that connects the horizontal irradiation unit and the lower irradiation unit to form the main body,
An attachment part that can attach the main body part to the wall surface;
A control unit for controlling the ultraviolet irradiation of each of the horizontal irradiation unit and the lower irradiation unit,
The control unit controls the ultraviolet irradiation of the horizontal irradiation unit and the lower irradiation unit based on at least one of the presence of a human body in the room and the necessity of cleaning the room.

  The indoor sterilization apparatus of the present invention can reliably sterilize the floating bacteria floating in the indoor space and the attached bacteria attached to various places. The hygienic state of the indoor space can be enhanced by reliably sterilizing the floating bacteria and the adherent bacteria.

  For example, in the case of replacing hospitalized patients in a hospital room, it is possible to sterilize indoor floating bacteria and adherent bacteria in a short time. As a result, the receiving operation at the time of replacement can be ensured and shortened.

  It is also possible to detect the presence of a person in the room, prevent the human body from being irradiated with ultraviolet rays, and suppress the influence on the human body.

It is a perspective view of the indoor sterilizer in Embodiment 1 of this invention. It is a schematic diagram which shows the room | chamber interior in which the indoor sterilizer in Embodiment 1 of this invention was installed. It is a schematic diagram which shows the room | chamber interior in which the indoor sterilizer in Embodiment 1 of this invention was installed. It is a schematic diagram of the room | chamber interior in which the indoor sterilizer in Embodiment 1 of this invention was installed. It is a side view of the horizontal irradiation unit in Embodiment 1 of this invention. It is a side view of the 1st light source in Embodiment 1 of this invention. FIG. 7 is a front view of the first light source according to Embodiment 1 of the present invention. It is a front view of the 1st light source in Embodiment 1 of this invention. It is a side view of the slit in Embodiment 1 of this invention. It is a schematic diagram of the room | chamber interior in which the indoor sterilizer in Embodiment 1 of this invention was attached. It is a side view of the downward irradiation unit in Embodiment 1 of this invention. It is a side view of another form of the downward irradiation unit in Embodiment 1 of this invention. It is a perspective view of the downward irradiation unit in Embodiment 1 of this invention. It is a perspective view of the fan unit in Embodiment 2 of this invention.

The indoor sterilizer according to the first aspect of the present invention includes a horizontal irradiation unit that irradiates ultraviolet rays in a substantially horizontal direction in a room,
A lower irradiation unit that irradiates at least one of the lower and lower sides of the room with ultraviolet rays;
A connecting portion that connects the horizontal irradiation unit and the lower irradiation unit to form the main body,
An attachment part that can attach the main body part to the wall surface;
A control unit for controlling the ultraviolet irradiation of each of the horizontal irradiation unit and the lower irradiation unit,
The control unit controls the ultraviolet irradiation of the horizontal irradiation unit and the lower irradiation unit based on at least one of the presence of a human body in the room and the necessity of cleaning the room.

  With this configuration, the indoor space can be sterilized uniformly. In particular, airborne bacteria and adherent bacteria can be surely sterilized even when a patient needs to be cleaned in a short time when replacing a sick person in a hospital room. In addition, sterilization and human body protection can be performed according to the situation.

  In the indoor sterilization apparatus according to the second aspect of the present invention, in addition to the first aspect, the attachment portion attaches the horizontal irradiation unit to a location above the room and higher than the height of the human body.

  With this configuration, it is possible to prevent the human body from being irradiated with ultraviolet rays in the horizontal direction.

In the indoor sterilization apparatus according to the third invention of the present invention, in addition to the first or second invention, the horizontal irradiation unit comprises:
A first light source that emits ultraviolet light;
A first reflecting portion that reflects ultraviolet rays on the back surface of the first light source;
A first diaphragm member provided in front of the first light source,
The first diaphragm member has a plurality of slits, and performs at least one of the diaphragm of the ultraviolet irradiation range and the control of the ultraviolet irradiation direction.

  With this configuration, the horizontal irradiation unit can irradiate ultraviolet rays while narrowing down in the horizontal direction.

  In the indoor sterilization apparatus according to the fourth aspect of the present invention, in addition to the third aspect, the first diaphragm member makes the irradiation direction of the ultraviolet rays from the first light source substantially horizontal in the room.

  With this configuration, the floating bacteria present in the horizontal direction can be sterilized, and the human body can be prevented from being irradiated with ultraviolet rays.

  In the indoor sterilization apparatus according to the fifth aspect of the present invention, in addition to the third or fourth aspect, in the plurality of slits, the interval between the lower slits is wider than the interval between the upper slits.

  With this configuration, it is possible to increase the amount of ultraviolet rays at a position where airborne bacteria are likely to exist.

  In the indoor sterilization apparatus according to the sixth invention of the present invention, in addition to any of the third to fifth inventions, the horizontal irradiation unit is opposed to the irradiation range of the ultraviolet rays irradiated through the first diaphragm member. A reflecting plate is further provided on the wall.

  With this configuration, it is possible to increase the amount of ultraviolet rays in the range irradiated by the horizontal irradiation unit.

In the indoor sterilizer according to the seventh aspect of the present invention, in addition to any one of the first to sixth aspects, the downward irradiation unit includes:
A second light source that emits ultraviolet light;
A second reflecting portion that reflects ultraviolet rays on the back surface of the second light source;
A second diaphragm member provided on at least a part of the front and lower side of the second light source,
The second diaphragm member has a plurality of slits, and performs at least one of the diaphragm of the ultraviolet irradiation range and the control of the ultraviolet irradiation direction.

  With this configuration, the lower irradiation unit can efficiently irradiate ultraviolet rays on at least a part of the lower and lower sides.

In the indoor sterilization apparatus according to the eighth aspect of the present invention, in addition to the seventh aspect, the second diaphragm member provided in front of the second light source controls the irradiation direction of ultraviolet rays from the second light source obliquely downward. And
The second diaphragm member provided below the second light source controls the irradiation direction of the ultraviolet rays from the second light source to at least one of a diagonally lower side and a lower side.

  With this configuration, the lower irradiation unit can reliably irradiate ultraviolet rays obliquely downward and downward.

  In the indoor sterilization apparatus according to the ninth aspect of the present invention, in addition to the eighth aspect, the second light source can irradiate ultraviolet rays in a wide range obliquely downward from below by the second diaphragm member.

  With this configuration, it is possible to sterilize a wide range of floating bacteria and adherent bacteria.

  In addition to any of the first to ninth inventions, the indoor sterilizer according to the tenth aspect of the present invention further includes a fan unit that can be attached to the main body and generates air convection in the room.

  With this configuration, it is possible to cause convection in the room and move the suspended bacteria to a position where the suspended bacteria can be sterilized, and to peel off the attached bacteria and allow them to float. As a result, sterilization can be facilitated by ultraviolet irradiation.

  In the indoor sterilizer according to the eleventh aspect of the present invention, in addition to the tenth aspect, the fan unit sucks air from above the room and releases air downward.

  With this configuration, on the side opposite to the indoor sterilization apparatus, an airflow directed from the bottom to the top can be generated, and floating bacteria and adherent bacteria in the vicinity of the floor surface can be raised. By this increase, it is possible to sterilize the portion with a large amount of ultraviolet rays.

  In the indoor sterilization apparatus according to the twelfth invention of the present invention, in addition to the tenth or eleventh invention, the fan unit removes at least part of the air in the internal space of the horizontal irradiation unit and the internal space of the lower irradiation unit, Circulate with outside air.

  With this configuration, bacteria and the like can be sterilized inside the horizontal irradiation unit and the lower irradiation unit.

  In the indoor sterilization apparatus according to the thirteenth invention of the present invention, in addition to any of the first to twelfth inventions, the control unit irradiates the lower irradiation unit with ultraviolet rays when a person is present in the room. Stop.

  With this configuration, it is not necessary to cause an influence on the human body.

  In the indoor sterilization apparatus according to the fourteenth aspect of the present invention, in addition to any one of the first to thirteenth aspects, the control unit may control the horizontal irradiation unit and the lower irradiation unit when no person is present in the room. Perform UV irradiation.

  With this configuration, the indoor space can be sterilized evenly when there is no influence on the human body.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Analysis by the inventor)
The inventor analyzed the prior art described in the prior art and the actual sterilization situation in the room. Through this analysis, the inventor has obtained the following findings.

  (Observation 1) Although bacteria and viruses can be sterilized by irradiation with ultraviolet rays according to the prior art, sterilization of adherent bacteria adhering to the surface of an object or falling bacteria falling on a floor surface is often insufficient.

  (Observation 2) As in Finding 1, there are airborne bacteria floating in the indoor space and adhering bacteria (including falling bacteria) attached to the surface of the object.

  (Observation 3) In a hospital room, it is necessary to clean the hospital room in a very short time from when an inpatient is discharged until the next patient enters the room. In such a case, it is required to sterilize in a short time including floating bacteria and adherent bacteria.

  The inventor has invented such an indoor sterilizer which is necessary based on the findings.

(Embodiment 1)

(Overview)
An overall outline of the indoor sterilization apparatus according to Embodiment 1 of the present invention will be described. FIG. 1 is a perspective view of an indoor sterilizer according to Embodiment 1 of the present invention. FIG. 2 is a schematic diagram showing a room in which the indoor sterilizer according to Embodiment 1 of the present invention is installed. FIG. 3 is a schematic diagram showing a room in which the indoor sterilizer according to Embodiment 1 of the present invention is installed.

  The indoor sterilizer 1 includes a horizontal irradiation unit 2, a lower irradiation unit 3, a connection unit 8, an attachment unit 5, and a control unit 6. In addition, FIG. 1 has shown the external appearance of the indoor sterilizer 1, and since the control part 6 is actually contained in this inside, it cannot be seen on an external appearance. In FIG. 1, the controller 6 is shown as an element for ease of understanding. FIG. 1 also shows a fan unit 4 that is an additional element described in the second embodiment.

  The indoor sterilizer 1 shown in FIG. 1 is used by being attached to a room 100 as shown in FIGS.

  The horizontal irradiation unit 2 irradiates ultraviolet rays in the substantially horizontal direction of the room 100. Since it is a substantially horizontal direction, for example, when it is attached to the wall surface of the room 100 as shown in FIG. 2, it is possible to irradiate ultraviolet rays from the place toward the front.

  The lower irradiation unit 3 irradiates at least one of the lower side and the lower side of the room 100 with ultraviolet rays. Unlike the horizontal irradiation unit 2, the lower irradiation unit 3 can irradiate ultraviolet rays obliquely below or below the room 100. In FIG. 2, in the indoor sterilization apparatus 1 attached to the wall surface, the lower irradiation unit 3 irradiates ultraviolet rays obliquely downward and downward from the attachment position.

  By providing the horizontal irradiation unit 2 and the lower irradiation unit 3 in this way, the indoor sterilization apparatus 1 attached to the wall surface in the room 100 can irradiate the entire room 100 with ultraviolet rays.

  The connection unit 8 connects the horizontal irradiation unit 2 and the lower irradiation unit 3. The horizontal irradiation unit 2 and the lower irradiation unit 3 are separate elements, and the main body 7 can be configured by connecting them. Since the horizontal irradiation unit 2 and the lower irradiation unit 3 are separate elements, a degree of freedom of combination arises, and the flexibility of the indoor sterilizer 1 is improved. In this case, the connection unit 8 can realize this combination.

  Of course, a structure in which the horizontal irradiation unit 2 and the lower irradiation unit 3 are integrally formed and portions having different functions may be included.

  The attachment portion 5 can attach the main body portion 7 to the wall surface. The attachment part 5 attaches the main body part 7, so that the indoor sterilizer is attached to the wall surface of the room 100 as shown in FIGS. Here, the main body 7 has a configuration of a combination of the horizontal irradiation unit 2 and the lower irradiation unit 3, a configuration of either the horizontal irradiation unit 2 or the lower irradiation unit 3, and a state in which the fan unit 4 is also attached to the combination. Either.

  The control unit 6 controls the ultraviolet irradiation of the horizontal irradiation unit 2 and the lower irradiation unit 3. The control unit 6 may be an element incorporated in the horizontal irradiation unit 2 or the lower irradiation unit 3, or may be an element incorporated in the indoor sterilizer separately from these.

  The control unit 6 controls the ultraviolet irradiation of the horizontal irradiation unit 2 and the lower irradiation unit 3 based on at least one of the presence of the human body in the room 100 and the necessity of cleaning the room 100. By this control, the indoor sterilizer 1 can reduce bacteria and viruses by irradiating necessary and possible parts of the room 100 with ultraviolet rays.

(Description of operation)
Operation | movement of the indoor sterilizer 1 is demonstrated using FIG.2, FIG.3, FIG.4.

(Response to airborne and adherent bacteria)
FIG. 2 shows a state where the object 102 is installed in the room 100. The room 100 is, for example, a hospital room, and the object 102 is a desk and a bed. In FIG. 2, an object 102 is installed in the room 100. In a state where there is a sick person in the room 100, bacteria and viruses that have passed through the sick person are present in the room 100. In this case, as described in the inventor's analysis, bacteria and the like are floating bacteria 50 floating in the interior space of the room 100, and attached bacteria 51 that are dropped and attached to the surface of the object 102 or the floor surface 101. Including.

  FIG. 2 shows a state where the floating bacteria 50 and the attached bacteria 51 exist in the room 100. As an example, the hospital room in which the inpatient has just left is the room 100 shown in FIG. That is, the room 100 needs to be cleaned in a short time until the next inpatient enters.

  On the other hand, FIG. 3 shows the room 100 without the object 102, for example. For example, even in a hospital room, there may be a room where a bed or desk is carried out, or where there is no desk. In such a case, in the room 100, there may be a state in which the floating bacteria 50 exist but the attached bacteria 51 hardly exist. Alternatively, even if the object 102 is installed as shown in FIG. 2, there may be a state in which the attached bacteria 51 are hardly present on the object 102 or the floor surface 101.

  In such a state, the floating bacteria 50 are mainly present.

  FIG. 4 is a schematic diagram of the room where the indoor sterilizer according to Embodiment 1 of the present invention is installed. FIG. 4 shows a state where a person 200 is present in the room 100. In the room 100 of FIG. Further, there is a possibility that the adherent bacteria 51 exist on the surface of the floor surface 101 or the object 102 (in FIG. 4, the adherent bacteria 51 is shown on the surface of the object 102).

  The internal state of the room 100 (the presence of bacteria and the like, the presence of a person 200, the necessity for cleaning, etc.) are various as shown in FIGS.

  In the state of FIG. 2, it is required to sterilize and clean the room 100 in a short time. The control unit 6 causes both the horizontal irradiation unit 2 and the lower irradiation unit 3 included in the indoor sterilizer 1 to perform ultraviolet irradiation. As shown in FIG. 2, ultraviolet rays are irradiated from the horizontal irradiation unit 2 in a substantially horizontal direction. By the irradiation of the substantially horizontal ultraviolet rays, the floating bacteria 50 at this height in the interior space of the room 100 can be sterilized.

  In addition, the control unit 6 performs ultraviolet irradiation from the lower irradiation unit 3. In FIG. 2, the downward irradiation unit 3 irradiates ultraviolet rays obliquely downward and downward. With reference to the wall surface to which the indoor sterilizer 1 is attached, ultraviolet rays are irradiated obliquely downward and downward.

  The downward irradiation unit 3 irradiates ultraviolet rays obliquely downward and downward, so that the floating bacteria 50 and the adherent bacteria 51 in the space below the room 100 can be sterilized. At this time, as shown in FIG. 2, the adherent bacteria 51 are attached to various places such as the surface of the object 102 and the floor surface 101. The adherent bacteria 51 adhering to various places can be surely sterilized by irradiating the adherent bacteria 51 adhering to these various places obliquely or downwardly with ultraviolet rays.

  As described above, for example, the room 100 in which the inpatient has just left the room until the next inpatient is accepted is the room 100 shown in FIG. In this case, it is necessary to clean the room 100 in a short time until the next hospitalized patient is accepted.

  In such a case, the indoor sterilization apparatus 1 according to the first embodiment floats the room 100 by irradiating the ultraviolet rays in the horizontal direction by the horizontal irradiation unit 2 and irradiating the ultraviolet rays downward and downward by the lower irradiation unit 3. The bacteria 50 and the attached bacteria 51 can be sufficiently sterilized. As a result, a short and reliable cleaning can be realized. The control unit 6 operates both the horizontal irradiation unit 2 and the lower irradiation unit 3 to irradiate ultraviolet rays. In addition, the irradiation level of ultraviolet rays is increased as necessary.

(Only for floating bacteria)
In FIG. 3, the floating bacteria 50 exist in the room 100, but there are almost no attached bacteria 51. In such a room 100, the control unit 6 operates only the horizontal irradiation unit 2 to irradiate the ultraviolet rays in the horizontal direction (or makes the ultraviolet irradiation from the lower irradiation unit 3 weak level). FIG. 3 shows this state.

  When most of the floating bacteria 50 are present, only the ultraviolet irradiation by the horizontal irradiation unit 2 is performed, so that necessary energy can be reduced while efficiently sterilizing bacteria and the like. The control unit 6 controls such irradiation.

(When human body 200 exists)
FIG. 4 shows a case where the human body 200 exists while there are attached bacteria. Of course, it includes the case where the human body 200 is present regardless of whether or not the adherent bacteria 51 are present. Although FIG. 4 shows a state where the adherent bacteria 51 are present on the surface of the object 102, there may be a case where the adherent bacteria 51 are not present.

  Here, the attachment unit 5 attaches the horizontal irradiation unit 2 to a position above the room 100 and higher than the height of the human body 200. By being attached at this position, the ultraviolet rays irradiated in the substantially horizontal direction from the horizontal irradiation unit 2 irradiate the human body 200.

  When the human body 200 exists in the room 100, the control unit 6 stops the operation of the lower irradiation unit 3 and controls the lower irradiation unit 3 not to irradiate ultraviolet rays. On the other hand, the control unit 6 operates the horizontal irradiation unit 3 to irradiate ultraviolet rays in a substantially horizontal direction. That is, as shown in FIG. 4, the indoor sterilizer 1 irradiates ultraviolet rays in a substantially horizontal direction above the room 100 (above the human body 200).

  The floating bacteria 50 can be sterilized by this ultraviolet irradiation state. On the other hand, since ultraviolet irradiation from the downward irradiation unit 3 obliquely downward or downward is stopped, there is no concern of directly irradiating the human body 200 with ultraviolet light. As a result, the adverse effect of the ultraviolet rays on the human body 200 can be prevented.

  The control unit 6 includes a detection sensor that detects the human body 200 and detects whether the human body 200 exists in the room 100. According to the detection result, when the human body 200 exists in the room 100, the operation of the lower irradiation unit 3 is stopped. The detection sensor is not provided in the control unit 6, but is provided in the room 100, and the control unit 6 may be able to acquire the detection result of the detection sensor.

  For example, when the human body 200 enters the room 100, the control unit 6 stops the operation of the lower irradiation unit 3, and controls when the human body 200 leaves the room 100 and does not exist in the room 100. The unit 6 may activate the operation of the downward irradiation unit 3.

  Further, the control unit 6 may always operate the horizontal ultraviolet irradiation from the horizontal irradiation unit 2 as a basic operation. This is because the hygienic state of the room 100 can be maintained. In accordance with the continuous operation of the horizontal irradiation unit 2, when the human body 200 does not exist in the room 100, the control unit 6 operates the lower irradiation unit 3. By this operation, the lower irradiation unit 3 can irradiate ultraviolet rays obliquely downward and downward (state of FIG. 2), and can sterilize the floating bacteria 50 and the adherent bacteria 51 in the room 100 evenly.

  As described above, the indoor sterilization apparatus 1 according to Embodiment 1 can reliably sterilize the floating bacteria 50 and the adherent bacteria 51 existing in the room 100 evenly. As in a hospital room, the room 100 can be cleaned even in a short time such as when hospitalized patients are replaced. The same applies to the other rooms 100. In addition, in the case where the human body 200 exists, it is possible to prevent the human body from being affected while sterilizing the floating bacteria 50 and maintaining the sanitary state only by the horizontal ultraviolet irradiation. As a result, human flexible indoor sterilization is possible.

  Next, the detail of each part is demonstrated.

(Horizontal irradiation unit)
FIG. 5 is a side view of the horizontal irradiation unit according to Embodiment 1 of the present invention. FIG. 5 shows the inside in a visible state so that the internal structure of the horizontal irradiation unit 2 can be seen. In the actual indoor sterilizer 1, the outside is covered with a casing 21.

  The horizontal irradiation unit 2 includes a housing 21 that forms an overall outer shape and stores internal elements, a first light source 22, a first reflecting portion 23, and a first diaphragm member 24.

  The first light source 22 emits ultraviolet rays. The first light source 22 is a member such as a fluorescent tube that emits light in the ultraviolet region. By such a member, the 1st light source 22 emits an ultraviolet-ray, and implement | achieves the ultraviolet irradiation as the horizontal irradiation unit 2. FIG.

  The first reflecting portion 23 is provided on the back surface of the first light source 22. The first reflecting portion 23 is a member such as a reflector that can reflect ultraviolet rays, and reflects the ultraviolet rays emitted from the first light source 22 toward the back surface. Since the 1st light source 22 emits an ultraviolet-ray ahead, the ultraviolet-ray is irradiated ahead also with the light reflected by reflection. The ultraviolet rays emitted forward and backward from the first light source 22 by the reflection of the first reflector 23 are irradiated forward without being wasted.

  The first diaphragm member 24 is provided on the front surface (front side) of the first light source 22. The first diaphragm member 24 has a plurality of slits 25. By the plurality of slits 25, the first diaphragm member 24 performs at least one of the diaphragm of the irradiation range of the ultraviolet light (including the ultraviolet light reflected by the first reflection unit 23) from the first light source 22 and the control of the irradiation direction. .

  The first light source 22 emits ultraviolet light in multiple directions. If the irradiation is performed as it is, the horizontal irradiation unit 2 will irradiate the room 100 with ultraviolet rays in various directions. 3 and 4, the horizontal irradiation unit 2 needs to irradiate ultraviolet rays in a substantially horizontal direction.

  The first aperture member 24 includes a plurality of slits 25 as shown in FIG. By providing the plurality of slits 25, the irradiation range of the ultraviolet rays from the first light source 22 and the first reflecting portion 23 is narrowed. Furthermore, the irradiation direction is also controlled. As a result, the plurality of slits 25 irradiate ultraviolet rays in a substantially horizontal direction. In the process of passing through the slit 25, the irradiation range and the irradiation direction are limited, and as a result, the ultraviolet rays are irradiated in the front and substantially in the horizontal direction.

  Ultraviolet rays that do not fit in the narrow width of the slit are reflected and the irradiation angle of the ultraviolet rays is repeatedly narrowed while passing through the slit, and as a result, the straightness of the ultraviolet rays is improved, and it is substantially matched to the direction and angle of the slit. UV rays are emitted in the horizontal direction. As a result, the first diaphragm member 24 can control the ultraviolet rays from the first light source 22 in the front and substantially in the horizontal direction.

  Here, the slit 25 should just be comprised with a some board | plate material. It is also preferable that the surfaces of the plurality of plate materials are subjected to light absorption treatment. For example, a highly light-absorbing paint may be applied to the surface of the plate portion, or the diaphragm member 4 may be formed of a component having a plate portion that has been subjected to light absorption treatment.

  This is because the ultraviolet ray that passes through the slit 25 and is irradiated at an angle other than the front direction is absorbed by the light absorption process, and the ultraviolet ray is not easily irradiated outside the substantially horizontal direction.

  In this way, the horizontal irradiation unit 2 can irradiate ultraviolet rays that are straight ahead and substantially straight in the horizontal direction. This is as shown in FIG. The ultraviolet rays irradiated in the substantially horizontal direction can sterilize the floating bacteria 50 in the irradiation range. Of course, the attached bacteria 51 attached to the irradiation range (for example, the attached bacteria 51 attached to the front wall) can be sterilized.

(Slit device)
In the plurality of slits 25 provided in the first diaphragm member 24, it is also preferable that the interval between the lower slits is wider than the interval between the upper slits. The floating bacteria 50 that convection into the room 100 convects the room 100 by a fan unit that will be described later. Alternatively, the floating bacteria 50 float in the space of the room 100 by natural convection. For this reason, the floating bacteria 50 that move from the lower side to the upper side of the room 100 may be difficult to move to a high position close to the ceiling depending on the situation such as convection. In this case, the floating bacteria 50 concentrate on the lower side of the horizontal irradiation unit 2.

  Since the interval between the lower slits 25 is wider than the interval between the upper slits 25, the intensity of the ultraviolet rays irradiated on the lower side is likely to increase. Since there are many floating bacteria 50 on the lower side, the ultraviolet rays irradiated from the horizontal irradiation unit 2 in the horizontal direction can sterilize the floating bacteria 50 efficiently.

(Invention of the first light source)
FIG. 6 is a side view of the first light source according to Embodiment 1 of the present invention. FIG. 7 is a front view of the first light source according to Embodiment 1 of the present invention. As shown in FIGS. 6 and 7, in the first light source 22, the cross-sectional length in the front direction is larger than the cross-sectional length in the depth direction. That is, the cross-sectional length A in the front direction in FIG. 6 is larger than the cross-sectional length B in the depth direction. That is, the 1st light source 22 comprised with a fluorescent tube etc. can irradiate the ultraviolet-ray in a larger area toward the front rather than a substantially perpendicular direction.

  The first light source 22 is also preferably a fluorescent tube having a longitudinal direction and a short direction for emitting ultraviolet rays. The first light source 22 may be anything as long as it emits ultraviolet rays, but is preferably a fluorescent tube having a longitudinal direction C and a short direction D as shown in FIG. This is because the fluorescent tube can emit ultraviolet rays with higher energy.

  It is also preferable that the longitudinal direction as viewed from the front is stored along the plane direction inside the housing 21. By storing in this way, the first light source 22 can irradiate more ultraviolet rays toward the front direction in a state where the cross-sectional length in the substantially vertical direction is larger than the cross-sectional length in the depth direction. .

  The fluorescent tube constituting the first light source 22 has a width along the short direction D and a thickness intersecting the short direction D. Here, the width along the short direction D is larger than the thickness. By having such a structure, the cross-sectional length of the first light source 22 in the substantially vertical direction is larger than the cross-sectional length in the depth direction.

  The first light source 22 may be a light emitting element capable of emitting ultraviolet rays at a desired frequency or an assembly thereof, other than a fluorescent tube. For example, a configuration in which light emitting elements such as LEDs are arranged in an array may be used.

  An example of the wavelength of the ultraviolet light emitted by the first light source 22 is 254 nm. Other wavelengths may be used as long as a sterilizing effect can be obtained.

(Realization of straightness at the slit)
FIG. 8 is a side view of the slit in the first embodiment of the present invention.

  An arrow E in FIG. 8 is an ultraviolet ray substantially parallel to the slit 25 among the ultraviolet rays from the first light source 22. Among the ultraviolet rays irradiated along the various directions from the first light source 22, the ultraviolet rays substantially parallel to the slit 25 enter the entrance of the slit 25 and exit the slit 25 along the path formed by the slit 25. Get out of. That is, the ultraviolet rays corresponding to the arrow E are emitted from the first diaphragm member 24 as ultraviolet rays having straightness along the slit 25.

  On the other hand, even when entering from the entrance of the slit 25, the ultraviolet rays corresponding to the arrow F having a large angle with respect to the path of the slit 25 are reflected by the wall surface inside the slit 25. This reflection is also reflected at a large reflection angle. The wall surface has light absorbency. By reflecting at a large reflection angle, the wall surface easily absorbs ultraviolet rays corresponding to the arrow F. By repeating this absorption for each reflection, the ultraviolet light corresponding to the arrow F does not exit from the exit of the slit 25. That is, it is realized that ultraviolet rays having a large crossing angle with respect to the straight traveling direction as compared with the straight traveling direction are absorbed by the light-absorbing wall surface, and the ultraviolet light having the angle is not irradiated from the first diaphragm member 24. Is done.

  On the other hand, ultraviolet rays corresponding to the arrow G enter the slit 25 at an input angle between the arrows E and F. Such ultraviolet rays are made to have an angle close to the straight direction while being repeatedly reflected on the wall surface. Furthermore, since the reflection angle is small, the light is not absorbed by the light-absorbing wall. The ultraviolet rays corresponding to the arrow G exit from the exit of the slit 25 while reducing the angle with respect to the slit 25 by reflection on the wall surface. As a result, the ultraviolet rays corresponding to the arrow G are emitted from the slit 25 in a state having a more straight ahead than when entering the entrance of the slit 25.

  Through such a process, the first diaphragm member 24 improves the straightness of the ultraviolet rays emitted from the first light source 22.

  The first light source 22 is also preferably provided in the vicinity of the first diaphragm member 24. As a result, the first diaphragm member 24 can squeeze in the substantially horizontal direction and irradiate ultraviolet rays while further improving the straightness. Moreover, it is because the light quantity and energy of the irradiated ultraviolet rays can be kept large.

(reflector)
FIG. 9 is a schematic diagram of the room to which the indoor sterilizer according to Embodiment 1 of the present invention is attached. In the room 100, the reflection plate 12 is provided on the wall surface 104 facing the indoor sterilizer 1.

  The reflection plate 12 is provided at a portion facing the horizontal irradiation unit 1 corresponding to the irradiation range of the ultraviolet rays irradiated through the first diaphragm member 24. By providing the reflecting plate 12 at such a position, the ultraviolet rays irradiated by the horizontal irradiation unit 1 are reflected by the reflecting plate 12. Since the ultraviolet rays of irradiation and reflection overlap in the same range, there is an advantage that the sterilizing ability by the ultraviolet rays in this range is enhanced.

  In particular, as shown in FIG. 9, the floating bacteria 50 moving from the lower side to the upper side of the room 100 move to the irradiation range of the horizontal irradiation unit 2. The ability to sterilize the moving floating bacteria 50 by irradiating ultraviolet rays with high intensity increases the sterilizing ability. In particular, the floating bacteria 50 move up and down the room 100, and there may be a short time for staying in the ultraviolet irradiation range. Even in such a case, it can be surely sterilized in a short time.

(Lower irradiation unit)
FIG. 10 is a side view of the downward irradiation unit according to Embodiment 1 of the present invention. As with the description of the horizontal irradiation unit, FIG. 10 shows the inside as a visible state so that the internal structure can be grasped. FIG. 10 shows an example of the structure of the downward irradiation unit 3 and is not limited to the structure shown in FIG. 10 as long as the function and purpose can be achieved.

  The downward irradiation unit 3 includes a casing 31 that forms an outer shape and stores elements therein, a second light source 32, a second reflecting portion 33, and a second diaphragm member 34. The casing 31 constitutes the outer shape, and constitutes the indoor sterilizer 1 by connection with the horizontal irradiation unit 2 or an integral configuration.

  Similar to the first light source 22, the second light source 32 emits ultraviolet rays. The second light source 32 is a member such as a fluorescent tube that emits light in the ultraviolet region. By such a member, the 2nd light source 32 emits an ultraviolet-ray, and implement | achieves the ultraviolet irradiation as the downward irradiation unit 3. FIG.

  The second light source 32 only needs to have the same function as the first light source 22. In addition, since the 2nd light source 32 irradiates an ultraviolet-ray to at least one of diagonally downward and downward as an element of the downward irradiation unit 3, the shape and structure of the 2nd light source 32 should just be what match | combined with this. . For example, in the case of a plurality of fluorescent tubes, it is also preferable that the configuration is installed obliquely as shown in FIG.

  The second reflecting portion 33 is provided on the back surface (rear) of the second light source 32. The second reflection unit 33 is a member such as a reflector that can reflect ultraviolet rays, and reflects the ultraviolet rays emitted from the second light source 32 toward the back surface.

  The second light source 32 emits ultraviolet rays obliquely downward and downward. At this time, since the second light source 32 emits ultraviolet rays behind the second light source 32, the higher-density ultraviolet rays can be irradiated in a desired direction by the reflection by the second reflecting portion 33.

  The second diaphragm member 34 is provided on at least a part of the front and lower side of the second light source 32. In FIG. 10, the second diaphragm member 34 is provided on each of the front and lower sides of the second light source 32.

  The second diaphragm member 34 has a plurality of slits 35A to 35C. The plurality of slits 35 </ b> A are provided in front of the second light source 32 and have an angle directed obliquely downward from the front. The plurality of slits 35 </ b> B are provided below the second light source 32 and have a downwardly inclined angle inclined forward. The plurality of slits 35 </ b> C are provided below the second light source 32 and have a downwardly inclined angle inclined backward.

  By providing the slits 35 </ b> A to 35 </ b> C with the second diaphragm member 34, the ultraviolet light emitted from the second light source 32 is irradiated to at least a part of a wide range obliquely downward and downward. In the configuration of FIG. 10, ultraviolet rays are irradiated as indicated by arrows G, H, and I. By irradiating ultraviolet rays according to such an arrow, a wide range directed downward or downward in the room 100 is irradiated.

  Here, by providing the slits 35 </ b> A to 35 </ b> C, the second diaphragm member 34 controls the irradiation range and the irradiation direction of the ultraviolet light from the second light source 32 (including the ultraviolet light reflected by the second reflector 33). Do at least one. The result of this is UV irradiation according to the arrow as described above.

  Ultraviolet rays that do not fit the narrow width of the slits 35A to 35C are reflected, and the irradiation angle of the ultraviolet rays is repeatedly narrowed while passing through the slits 35A to 35C. As a result, the straightness of the ultraviolet rays is improved, and the slits 35A to 35C Irradiate ultraviolet rays according to the direction and angle. As a result, the first diaphragm member 24 can irradiate the ultraviolet rays from the first light source 22 obliquely downward and downward.

  Here, the slits 35 </ b> A to 35 </ b> C may be formed of a plurality of plate materials. It is also preferable that the surfaces of the plurality of plate materials are subjected to light absorption treatment. For example, a highly light-absorbing paint may be applied to the surface of the plate portion, or the second squeezing member 34 may be formed of a component having a plate portion that has been subjected to light absorption treatment.

  This is because the ultraviolet ray passing through the slits 35A to 35C and being irradiated at an angle other than the front direction is absorbed, and the irradiation of the ultraviolet ray narrowed down in a desired direction can be realized. .

  In this way, the lower irradiation unit 3 can irradiate ultraviolet rays toward at least one of the lower and lower sides. This is as shown in FIG. The ultraviolet rays irradiated in this direction can efficiently sterilize not only the floating bacteria 50 in the room 100 but also the attached bacteria 51 adhering to the floor surface 101 and the surface of the object 102.

  Together with the horizontal irradiation unit 2, the floating bacteria 50 and the adherent bacteria 51 in various places in the room 100 can be surely sterilized uniformly. It is extremely efficient in cleaning the hospital room when replacing sick people.

  FIG. 11 is a side view of another form of the downward irradiation unit according to Embodiment 1 of the present invention. In the lower irradiation unit 3 of FIG. 11, the second aperture member 34 includes a slit 35D. The slit 35D is provided downward. For this reason, the lower irradiation unit 3 in FIG. 11 can irradiate ultraviolet rays directly below the arrow J in addition to the diagonally lower side of the arrow G.

  In this way, it is possible to make the downward irradiation more directly by the configuration of the slit 35.

  At this time, it is also preferable that the inclination and angle of the slit 35 can be changed. This is because the configuration shown in FIGS. 10 and 11 can be realized while being changed by the same downward irradiation unit 3 by being changeable.

  The second diaphragm member 34 is provided with a slit 35 whose angle and inclination can be changed, so that the ultraviolet light from the second light source 32 is controlled in an oblique direction, downward, etc., and the ultraviolet light is irradiated to a wide range from obliquely downward to downward. Can be made. As a result, a wide range of the room 100 can be sterilized. In combination with the horizontal irradiation unit 2, a wide range can be sterilized.

  FIG. 12 is a perspective view of the downward irradiation unit according to Embodiment 1 of the present invention. FIG. 12 shows an example of the downward irradiation unit 3. As shown in FIG. 12, the lower irradiation unit 3 can irradiate ultraviolet rays obliquely downward and downward.

  Moreover, the connection part 8 connected with the horizontal irradiation unit 2 is also provided. The connection unit 8 connects the lower irradiation unit 3 to the horizontal irradiation unit 2 and integrates them. Of course, the separate bodies are not only connected and integrated, but may be integrated from the beginning.

  Next, the detail of each part is demonstrated.

(Second light source)
Similar to the first light source 22, the second light source 32 is a light source that can emit ultraviolet rays. What is necessary is just to be able to irradiate ultraviolet rays having a wavelength excellent in sterilizing ability. For example, a fluorescent tube is used. The wavelength used is the same as that of the first light source 22.

  The shape of the second light source 32 may be the same as that of the first light source 22 in necessary portions. Further, as shown in FIG. 10 and the like, the second light source 32 may have an oblique inclination so that it is easy to irradiate obliquely downward and downward. Other than that, what is necessary is just to have the structure and function similar to the 1st light source 22. FIG.

  The operation of the second light source 32 is often stopped by the control unit 6. This is because the second light source 32 is stopped when the human body 200 exists in the room 100 (or the second diaphragm member 34 described later may be closed). For this reason, it is also preferable to provide a switch that can immediately switch between light emission and extinction.

  The control unit 6 operates this switch to irradiate when necessary, and to turn off when not to irradiate.

(Second reflection part)
The second reflecting portion 33 is provided on the back surface of the second light source 32. The second reflecting unit 33 can reflect the light irradiated to the rear of the second light source 32 to increase the irradiation amount in a desired direction as the lower irradiation unit 3. As shown in FIG. 10, in the case of the second light source 32 in which two fluorescent tubes are arranged obliquely, the second reflecting unit 33 may be installed obliquely rearward. Or you may provide in back and upper direction.

(Second aperture member)
Similar to the first diaphragm member 24, the second diaphragm member 34 performs at least one of the diaphragm of the irradiation range of the ultraviolet light from the second light source 32 and the control of the irradiation direction. The second diaphragm member 34 includes a slit 35 that faces obliquely downward or downward. As described with reference to FIG. 8, the slit 35 is aligned with the angle formed by the slit 35 by aligning the direction of ultraviolet rays from the second light source 32. In addition, since the direction of the ultraviolet rays is aligned, straightness is improved and the irradiation range can be narrowed.

  As shown in FIGS. 10 and 11, the direction of the slit 35 is set to be obliquely downward and downward, or the obliquely downward direction is also left and right, so that the irradiation direction can be controlled in various ways. In the room 100, it is possible to irradiate a wide range that the horizontal irradiation unit 2 cannot irradiate.

  The second diaphragm member 34 is like a louver, and it is also preferable that the direction and angle of the slit 35 can be changed. By being able to change, the state of FIG. 10 and the state of FIG. 11 can also be switched. It is also preferable to change the irradiation range by changing the angle and direction of the slit 35 according to the arrangement state of the room 100 and the object 102.

  In this case, the control unit 6 may control the angle of the slit 35 and the like. It is conceivable to perform angle control with an electronic signal.

  It is also preferable to control the opening width of the slit 35 so that it can be changed. This is because the irradiation level can be changed by changing the opening width. It is also preferable that the opening width varies depending on the position of the slit 35. It is possible to control the range in which the dose is desired to be increased and the range in which it is not.

(Control part)
As described above, when the human body 200 exists in the room 100, the control unit 6 stops the irradiation of the lower irradiation unit 3 with ultraviolet rays. The second light source 32 may be stopped, or the second diaphragm member 34 that can be closed may be closed. At this time, the horizontal irradiation unit 2 may continue the operation or may stop the operation.

  On the other hand, when necessary or when the human body 200 does not exist in the room 100, the control unit 6 causes the lower irradiation unit 3 to perform ultraviolet irradiation. Thereby, the whole room | chamber 100 can be disinfected uniformly.

  As described above, the indoor sterilization apparatus 1 according to Embodiment 1 can sterilize the floating bacteria 50 and the attached bacteria 51 reliably and universally. In addition, when the human body 200 exists, it is possible to perform control such as preventing the human body 200 from being irradiated.

  (Embodiment 2)

  Next, a second embodiment will be described.

  In Embodiment 2, an indoor sterilizer equipped with a fan unit will be described. FIG. 1 is a diagram in the first embodiment, but is a drawing common to the indoor sterilizer 1 described in the second embodiment.

  In FIG. 1, a fan unit 4 is provided. The fan unit 4 can be attached to the main body 7. That is, it can be mounted on the combination of the horizontal irradiation unit 2 and the lower irradiation unit 3.

  The fan unit 4 includes a rotating fan, and air convection is generated in the room 100 by the rotational operation of the fan. By causing air convection, the attached bacteria 51 adhering to the floor surface 101 of the room 100 and the surface of the object 102 can be moved to the indoor space and floated. Alternatively, the floating microbes 50 can be moved to a higher position. Here, even if the attached bacteria are not directly removed by air convection, the air convection may reduce the moisture on the surface of the object 102, and the attached bacteria may easily float. This floating may make it possible to more efficiently irradiate the adherent bacteria with ultraviolet rays and increase the bactericidal action.

  Bacteria and the like can be placed in the irradiation range by the horizontal irradiation unit 2 by such movement of the adherent bacteria 51 and the floating bacteria 50. The horizontal irradiation unit 2 maintains its operation even when the human body 200 is present, and can continue sterilization even when the human body 200 is present. When irradiation is not possible due to the presence of the human body 200 within the irradiation range of the lower irradiation unit 3, the horizontal irradiation unit 2 that can always operate can be sterilized.

  The fan unit 4 can effectively sterilize bacteria and the like by moving bacteria and the like in various places in the room 100 to the irradiation range of the horizontal irradiation unit 2.

  Further, the adherent bacteria 51 adhering to the floor surface 101 or the object 102 may be in a place hidden behind the object, and the ultraviolet rays irradiated by the lower irradiation unit 3 may not reach. Since the fan unit 4 generates convection in the room 100, bacteria or the like attached to (or floating on) these objects can be moved above the room 100. By this movement, sterilization can be performed by ultraviolet irradiation by the horizontal irradiation unit 2 and the lower irradiation unit 3.

  FIG. 13 is a perspective view of the fan unit according to Embodiment 2 of the present invention.

  The fan unit 4 includes a fan 41 and an exhaust port 42. Depending on the positional relationship between the fan 41 and the exhaust port 42 and the rotation direction of the fan 41, the fan unit 4 sucks air from above the room 100 and discharges (releases) air downward. As a result, in the room 100, convection that leads to the air flow from the lower side to the upper side is generated from the air flow from the upper side to the lower side.

  In particular, on the side where the indoor sterilizer 1 is attached, an air flow is generated from above to below, and on the opposite side, an air flow is generated from below to above. As a result, bacteria and the like easily move upward on the side far from the indoor sterilizer 1, and the ultraviolet irradiation can be reliably performed.

  In addition, bacteria and the like removed from the surface of the object 102 due to air convection are in a floating state and can be irradiated with ultraviolet rays as the floating bacteria 50. As a result, sterilization can be reliably performed. Here, even if the attached bacteria are not directly removed by air convection, the air convection may reduce the moisture on the surface of the object 102, and the attached bacteria may easily float. This floating may make it possible to more efficiently irradiate the adherent bacteria with ultraviolet rays and increase the bactericidal action.

  The fan unit 4 circulates at least part of the air in the internal space of the horizontal irradiation unit 2 and the internal space of the lower irradiation unit 3 to the outside. By this circulation, bacteria and the like contained in the air taken inside are sterilized by direct ultraviolet irradiation from the first light source 22 and the second light source 23. There is an advantage that the sterilizing ability is further increased.

  By providing the fan unit 4 in this way, convection is brought into the room 100, causing circulation of bacteria and the like, and the irradiation effect by ultraviolet rays is enhanced. In particular, entering the sterilization range in the horizontal irradiation unit 2 increases the sterilization efficiency of bacteria and the like.

  In addition, it is also suitable for the control part 6 to implement | achieve the ultraviolet irradiation from the horizontal irradiation unit 2 or the downward irradiation unit 3 according to presence or absence of the human body 200, controlling this fan unit 4. FIG.

  Note that by changing the rotation direction of the fan 41, the exhaust port 42 may be an intake port, and air convection from below to above may be generated. This is because bacteria and the like can be suspended and sterilized according to the form and situation of the room 100.

  As described above, the indoor sterilization apparatus 1 according to Embodiment 2 can efficiently sterilize indoor bacteria and the like by introducing them into the ultraviolet irradiation range.

  In addition, the indoor sterilizer described in the first and second embodiments is an example for explaining the gist of the present invention, and includes modifications and alterations without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Indoor sterilizer 2 Horizontal irradiation unit 21 Case 22 1st light source 23 1st reflection part 24 1st aperture member 25 Slit 3 Downward irradiation unit 31 Case 32 2nd light source 33 2nd reflection part 34 2nd aperture member 35 Slit 4 Fan unit 41 Fan 42 Exhaust port 5 Main unit 6 Control unit 8 Connection unit

Claims (14)

A horizontal irradiation unit that irradiates ultraviolet rays in a substantially horizontal direction in the room;
A lower irradiation unit that irradiates ultraviolet rays on at least one of the lower and lower sides of the room; and
A connecting portion that connects the horizontal irradiation unit and the lower irradiation unit to form a main body;
An attachment part capable of attaching the body part to a wall surface;
A control unit that controls ultraviolet irradiation of each of the horizontal irradiation unit and the lower irradiation unit,
The said control part is an indoor sterilizer which controls the ultraviolet irradiation of the said horizontal irradiation unit and the said downward irradiation unit based on at least 1 of presence of the human body in the said room, and the necessity for the said indoor cleaning.   The indoor sterilizer according to claim 1, wherein the attachment unit attaches the horizontal irradiation unit to a location above the room and higher than a height of a human body. The horizontal irradiation unit includes:
A first light source that emits ultraviolet light;
A first reflecting portion that reflects the ultraviolet rays on a back surface of the first light source;
A first diaphragm member provided in front of the first light source,
The indoor sterilizer according to claim 1 or 2, wherein the first diaphragm member has a plurality of slits, and performs at least one of a diaphragm of the ultraviolet irradiation range and a control of the ultraviolet irradiation direction.   The indoor sterilizer according to claim 3, wherein the first diaphragm member makes the irradiation direction of the ultraviolet light from the first light source substantially horizontal in the room.   The indoor sterilizer according to claim 3 or 4, wherein, in the plurality of slits, the interval between the lower slits is wider than the interval between the upper slits.   The indoor sterilizer according to any one of claims 3 to 5, further comprising a reflecting plate on an opposing wall of the horizontal irradiation unit corresponding to an irradiation range of ultraviolet rays irradiated through the first diaphragm member. The lower irradiation unit includes:
A second light source that emits ultraviolet light;
A second reflecting part for reflecting the ultraviolet rays on the back surface of the second light source;
A second diaphragm member provided on at least a part of the front and lower side of the second light source,
The indoor sterilizer according to any one of claims 1 to 6, wherein the second diaphragm member has a plurality of slits and performs at least one of a diaphragm of the ultraviolet irradiation range and a control of the ultraviolet irradiation direction. . The second diaphragm member provided in front of the second light source controls the irradiation direction of ultraviolet rays from the second light source obliquely downward,
The indoor sterilizer according to claim 7, wherein the second diaphragm member provided below the second light source controls the irradiation direction of the ultraviolet rays from the second light source to at least one of a diagonally lower side and a lower side.   The indoor sterilization apparatus according to claim 8, wherein the second light source can irradiate ultraviolet rays to a wide range obliquely downward from below by the second diaphragm member.   The indoor sterilizer according to any one of claims 1 to 9, further comprising a fan unit that can be attached to the main body and generates air convection in the room.   The indoor sterilizer according to claim 10, wherein the fan unit sucks air from above the room and releases air downward.   The indoor sterilizer according to claim 10 or 11, wherein the fan unit circulates at least a part of air in an internal space of the horizontal irradiation unit and an internal space of the lower irradiation unit with outside air.   The indoor sterilizer according to any one of claims 1 to 12, wherein the control unit stops irradiation of ultraviolet rays of the lower irradiation unit when a person is present in the room.   The indoor sterilizer according to any one of claims 1 to 12, wherein the control unit performs ultraviolet irradiation of the horizontal irradiation unit and the lower irradiation unit when no person is present in the room.