JP2006110235A - Home sanitization treatment apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that sanitation management at home is important since it is gradually known in recent years that grown bacteria and residual pesticides, and the like, have adverse effects on health. <P>SOLUTION: A home sanitization treatment apparatus is provided with: an apparatus body box 3 having a UV shielding function; a square plate-like placement member 37 made of metal mesh for placing a material to be treated such as food or dishes; a photocatalytic material 39 carried on the inner surface of the body box 3 and the front surface of the placement member 37; UV irradiating parts 31, 33 for irradiating the material to be treated and the photocatalytic material 39 with UV-C; air inlet 15 and outlet 19 which are formed in the body box 3; and an air sending fan 43 for promoting the circulation of the air in a treatment space 5 and the outer air via the inlet 15 and the outlet 19. The home sanitization treatment is made compact and yet effectively performs reduction of the residual pesticides, the sterilization of the food and water, and the like, and sanitization in a room, which are required in home sanitization management. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  INDUSTRIAL APPLICABILITY The present invention is suitable for sanitization treatment at home, and specifically, a home hygiene treatment device suitable for various sanitization processing such as food consumed at home, tableware used, and drinking water and indoor air. It is about.

  It is known that foods and the like can be sterilized by irradiating ultraviolet rays or microwaves, and Patent Documents 1 and 2 disclose specific apparatuses that sterilize foods by irradiating ultraviolet rays or the like using the sterilization principle. Has been proposed.

JP-A-7-203923 JP 11-319041 A

Recently, it has been known that the propagated bacteria and residual agricultural chemicals have adverse effects on health, so there is a need for sufficient hygiene management at home. Is currently removed by a time-consuming and time-consuming method that strictly observes the number of days remaining after spraying the pesticide or that it is sufficiently washed with water.
In addition, no matter how much food or tableware is sterilized in advance, the effectiveness of the sterilization is weak if bacteria are propagated in the cooking room.

  In order to solve the above problems, the present inventor has found that not only sterilization but also residual agricultural chemicals can be efficiently removed in a short time by combining the irradiation of C ultraviolet rays having strong sterilizing power and the photocatalytic reaction with a photocatalytic material. As a result of earnest research, we have succeeded in developing a device suitable for comprehensive hygienic treatment at home that can effectively and safely demonstrate its effects.

That is, the invention of claim 1 includes a main body box having an ultraviolet shielding function, a processing space provided in the main body box for storing and processing materials such as food, tableware, water, and air, and the main body. A photocatalyst material carried on the inner surface of the box, an ultraviolet ray irradiation unit for irradiating the material to be treated and the photocatalyst material with C ultraviolet rays (UV-C), and an air inlet and outlet formed in the main body box An ultraviolet shielding member that prevents the C ultraviolet rays irradiated from the ultraviolet irradiation section from leaking out of either or both of the discharge port and the suction port, and the inside of the processing space via the suction port and the discharge port. A blower fan that promotes the circulation of the outside air and the outside air, an open / close door provided in the main body box for partitioning the housing space, an open / close detection means for detecting open / close of the open / close door, and the open / close detection A control unit that stops irradiation of C ultraviolet rays from the ultraviolet irradiation unit based on open information from the stage, and a display lamp that displays whether or not the ultraviolet irradiation unit is irradiating ultraviolet rays. This is a household hygiene processing device.

According to a second aspect of the present invention, in the household sanitization processing apparatus according to the first aspect of the present invention, a net-like placement member on which a material to be treated such as food and tableware is placed is inserted into and removed from an intermediate position of the treatment space. The photocatalyst material is also carried on the surface of the net placing member, and the ultraviolet irradiation unit is disposed above and below the net placing member. is there.

A third aspect of the present invention is the household hygiene treatment apparatus according to the first or second aspect, wherein the suction port and the discharge port are provided with antibacterial filters. is there.

  The household hygiene treatment apparatus of the present invention is compact and does not take an installation place, and has excellent safety that can be used not only for sterilization of food, tableware, water, etc. but also for removal of agricultural chemicals, as well as an indoor sterilization apparatus. Device. Further, as is apparent from the data of the examples described later, there is no adverse effect such as deterioration of the food even if it is processed.

The configuration of the household sanitization apparatus 1 according to the first embodiment of the present invention will be described with reference to FIGS.
Reference numeral 3 denotes a main body box, and the inside of the main body box 3 is a storage space 5 for a material to be processed such as food or tableware. Legs 7 for supporting the main body box 3 are attached to the four corners of the bottom surface of the main body box 3, respectively. The main body box 3 is made of a material having an ultraviolet shielding function.
Reference numeral 9 denotes an opening / closing door, and the opening / closing door 9 is largely provided on the front surface of the main body box 3. The open / close door 9 is rotatably attached to the right end portion of the front face of the main body box 3. When the handle 11 provided at the left intermediate portion of the open / close door 9 is pulled forward, the open / close door 9 is rotated and opened. . The opening / closing door 9 partitions the processing space 5 from the surroundings.
Reference numeral 13 denotes a limit switch as an open / close detection means of the open / close door 9, and the open / close state of the open / close door 9 is confirmed by the limit switch 13.

Reference numeral 15 denotes a suction port, and the suction port 15 is formed in the lower portion of the right side surface of the main body box 3. A net-like antibacterial filter 17 is fitted in the suction port 15 to prevent bacteria from entering the treatment space 5. On the surface of the antibacterial filter 17, titanium oxide as a photocatalyst material 39 is deposited and supported.
Reference numeral 19 denotes a horizontally long discharge port, and the discharge port 19 is formed over the entire corner where the front surface and the upper surface of the main body box 3 intersect. Reference numeral 21 denotes a reticulated protective portion of the fan, which will be described later. The reticulated protective portion 21 is fitted in the discharge port 19. Titanium oxide as a photocatalyst material 39 is deposited and supported also on the surface of the net-like protection part 21.
Reference numeral 23 denotes a control panel, which is attached to the outer surface of the main body box 3. The control panel 23 is provided with an ON / OFF switch 25 and a timer 27. The control panel 23 is provided with a control mechanism for stopping the irradiation of C ultraviolet rays from the ultraviolet irradiation unit based on the opening information from the limit switch 13.
Reference numeral 28 indicates a display lamp for displaying whether or not the ultraviolet irradiation unit is irradiating ultraviolet rays.
Reference numeral 29 denotes a power outlet.

Reference numerals 31 and 33 denote ultraviolet lamps as ultraviolet irradiation sections, and these ultraviolet lamps 31 and 33 have an elongated shape. An ultraviolet lamp holder 35 is attached to the inner surface of the main body box 3, and the ultraviolet lamps 31 and 33 are attached to the holder 35 and fixed. The ultraviolet lamp 31 is attached to the central portion of the ceiling on the inner surface of the main body box 3 so as to be perpendicular to the door 9, and the ultraviolet lamp 33 is attached to the central portion of the floor so as to be parallel to the door 9.
When even one of the ultraviolet lamps 31 and 33 is cut off, the display lamp 28 as a means for confirming the ultraviolet irradiation state is lit in red.

The code | symbol 37 shows a square plate-shaped mounting member, and is comprised with the iron metal net | network. The rectangular plate-like mounting member 37 is sized to be horizontally inserted into the storage space 5 of the main body box 3. The rectangular plate-shaped mounting member 37 has a function as a mounting table for mounting a material to be processed such as food and tableware.
Titanium oxide as a photocatalyst material 39 is deposited and supported on the surface of the wire 38 constituting the square plate-like mounting member 37. Similarly, titanium oxide as a photocatalyst material 39 is deposited and supported on the entire inner surfaces of the main body box 3 and the open / close door 9. Although not shown, titanium oxide as the photocatalyst material 39 is deposited and supported on the same main body in the antibacterial filter 17 and the like.

Reference numerals 41 and 41 denote a pair of rail portions for supporting the square plate-like mounting member 37. The rail portions 41 and 41 are arranged opposite to each other at the same horizontal position, and the end portions that are not opposed to each other are fixed to the inner surface of the main body box 3. The rectangular plate-like mounting member 37 can be taken in and out along a pair of opposing rail portions 41, 41. In this state, the left and right ends of the plate-like mounting member 37 are the rails on the left and right sides, respectively. Abutted on and supported by the upper surface of the portion 41. The pair of rail portions 41, 41 are provided in three stages in the vertical direction, and the arrangement position of the square plate-like mounting member 37 can be adjusted in the vertical direction.

Reference numeral 43 denotes a cylindrical sirocco fan as a blower fan, and this sirocco fan 43 is provided along the outlet 19 on the back side.
Reference numeral 45 denotes an antibacterial filter member, and the antibacterial filter member 45 has a U-shaped cross section. The antibacterial filter member 45 is disposed so as to surround the sirocco fan 43, and one end portion in the longitudinal direction is fixed to the ceiling of the inner surface of the main body box 3, and the other end portion is fixed to the front surface. The sirocco fan 43 and the processing space 5 are partitioned by the antibacterial filter member 45.
Titanium oxide as a photocatalyst material 39 is deposited and supported on the surface of the fan of the sirocco fan 43 and the antibacterial filter member 45.

Reference numeral 47 denotes an ultraviolet shielding member, and the ultraviolet shielding member 47 has an L-shaped cross section. One end of the ultraviolet shielding member 47 in the longitudinal direction is fixed to the ceiling of the inner surface of the main body box 3 between the antibacterial filter member 45 and the ultraviolet lamp 31, and extends downward in parallel with the antibacterial filter member 45. The filter member 45 is bent at a right angle along the corner of the filter member 45 and extends forward.
By arranging the ultraviolet shielding member 47, the ultraviolet lamp 31 and the discharge port 19 are partitioned, and the C ultraviolet rays with strong sterilizing power irradiated from the ultraviolet lamp 31 are prevented from leaking out from the main body box 3.

Next, the usage method of the household sanitization processing apparatus 1 is demonstrated.
First, the household hygiene treatment apparatus 1 is installed in a suitable place in the home, for example, in the kitchen, the handle 11 is pulled forward, the opening / closing door 9 is opened, and the square plate-like mounting member 37 is attached to either pair of rails. Place on the parts 41, 41. When the material to be treated is placed on the square plate-like mounting member 37, if the central portion of the material to be treated is at a substantially intermediate height of the treatment space 5, the entire circumference of the material to be treated is easily hit by the ultraviolet rays. Therefore, the ultraviolet irradiation effect is enhanced. Accordingly, the pair of rail portions 41 and 41 on which the square plate-like mounting member 37 is placed is determined according to the size of the material to be processed.
In this case, as shown in FIG. 4, the material to be treated is a relatively small food (S) such as an apple, eggplant, pumpkin, fish, etc., so that the square plate-like mounting member 37 is placed on the uppermost pair of rail portions 41, Next, the food (S) is placed directly on the square plate-like placement member 37, and the door 9 is closed.

Plug the outlet 29 into a commercial power plug, set an appropriate time with the timer 27, and then press the ON / OFF switch 25. Then, a motor (not shown) is driven to rotate the sirocco fan 43, so that fresh air is always introduced into the processing space 5 of the main body box 3 through the suction port 15 and the discharge port 19. Accordingly, an increase in the temperature of the air in the processing space 5 due to the irradiation of ultraviolet rays is prevented. Note that the air that has been antibacterial treated by the antibacterial filter 17 is introduced into the treatment space 5.

The ultraviolet lamps 31 and 33 are turned on to irradiate ultraviolet rays. Since the ultraviolet lamps 31 and 33 are arranged above and below the plate-like mounting member 37, the food (S) placed on the square plate-like mounting member 37 is directly irradiated with ultraviolet rays from the vertical direction. become. Although the ultraviolet rays go straight, they are reflected by the main body box 3 and the open / close door 9 that define the processing space 5, so that they uniformly hit the entire circumference of the material to be processed in the processing space 5.
The ultraviolet rays hit the photocatalyst material 39 that is uniformly supported on the inner surfaces of the square plate-like mounting member 37 and the main body box 3 to excite the photocatalyst and promote the photocatalytic reaction.
Since the lower part of the material to be treated placed on the plate-like mounting member 37 is in contact with the wire 38, it is not directly exposed to C ultraviolet rays, but is in contact with the photocatalyst material 39 carried on the surface of the wire 38, so that the photocatalyst The reaction is promoted.
Therefore, the sterilization / pesticidal removal treatment by ultraviolet irradiation and photocatalytic reaction is performed on the food (S) in the treatment space 5 in parallel.
Further, the air in the processing space 5 comes into contact with the photocatalyst material 39 carried on the inner surface of the main body box 3 and is sterilized.
By driving the sirocco fan 43, indoor air is continuously supplied to the processing space 5 from the suction port 15, and the processed air is continuously discharged from the discharge port 19, so that the sterilization processing in the room is simultaneously performed. Is done.

When the open / close door 9 is opened during the operation, the limit switch 13 is operated, and the control panel 23 automatically stops the power supply to the motor of the sirocco fan 43 and the ultraviolet lamps 31 and 33 to stop the processing. Further, leakage of C ultraviolet rays having a strong sterilizing power is prevented by the ultraviolet shielding member. Therefore, the safety mechanism is perfect.
Normally, when the timer 27 expires, the control panel 23 automatically stops the power supply to the motor of the sirocco fan 43 and the ultraviolet lamps 31 and 33, and the process ends.
If one of the ultraviolet lamps 31 and 33 is cut off during the process, the display lamp 28 is lit in red, so that it can be confirmed whether or not the processing is being carried out reliably.

A home hygiene processing apparatus 51 according to a second embodiment of the present invention will be described with reference to FIG.
Most of the structure is the same as that of the household hygiene processing apparatus 1 of FIG. 1, and the same components are denoted by the same reference numerals and the description thereof is omitted.
Reference numeral 53 denotes a rack-like mounting member for placing tableware (D), and is made of a metal net. The rack-like mounting member 53 is provided with a cup stand 55 and a partition plate (inclined plate) 57. As shown in FIG. 5, many cups can be efficiently placed by leaning the cup on the stand 55 and leaning the dish on the partition 57 plate.
In the case of sanitizing the tableware (D), if the above-described rack-like mounting member is used, a plurality of items can be sanitized efficiently.

Although the embodiment of the present invention has been described above, the specific configuration of the present invention is not limited to this embodiment, and even if there is a design change or the like without departing from the gist of the present invention. Included in the invention.
For example, like a turntable of a microwave oven, a motor having a rotating shaft is installed at the lower part of the main body box 3, a tray is integrally attached to the upper end of the rotating shaft, and a circular plate plate mounting member is placed on the tray. You may comprise so that a circular plate-shaped mounting member may be rotated by rotating a motor. If comprised in this way, since it can process, rotating the to-be-processed material mounted on the circular plate-shaped mounting member, an ultraviolet-ray will hit equally uniformly.

  Moreover, you may use together the auxiliary | assistant mounting member which provided the circular opening part a little larger than the said circular plate-shaped mounting member in the center of the square plate-shaped mounting member 37. FIG. Similarly to the square plate-like placement member 37, the auxiliary placement member is arranged in the processing space 5 by the pair of rail portions 41, and the circular plate-like placement member is arranged so as to close the opening. If arranged in this way, food or the like placed on the circular plate-shaped mounting member is prevented from falling onto the floor of the main body box 3 even if it falls down during rotation.

Not only fruits and vegetables but also various foods such as flours, cereals, dried foods, meats and fish can be processed. Moreover, not only food and tableware but also water can be processed. Furthermore, the apparatus of the present invention can be used only for sanitizing indoor air without storing food or the like in the main body box 3. If the continuous operation is performed without using the timer 27, the sterilization process is always performed. In that case, the sterilization filter 17 of the suction port 15 is usually removed. Note that the room includes a room such as an automobile.
The ultraviolet irradiation unit is not limited to the arrangement configuration in which the upper and lower parts are vertically intersected as in the above embodiment, and may be arranged in parallel.
The ultraviolet lamps 31 and 33 as the ultraviolet irradiation section are not limited to a tubular one, and a circular or elliptical one can also be used. For example, if a circular or elliptical ultraviolet lamp is used as the ultraviolet irradiation unit, for example, the processing space of the main body box can be made compact enough to accommodate a household cutting board while ensuring the same irradiation amount. be able to.
The UV shielding member is provided in order to prevent leakage of C ultraviolet rays with strong sterilizing power, and the actual structure is designed in accordance with the structure of the UV irradiation section. It may be configured that the blue lamp is sometimes turned on and the red lamp is turned on when the blue lamp is cut off, that is, in an abnormal state.

Various fruits and vegetables were used to verify the effect of reducing pesticides.
Pretreatment: The material to be treated was immersed for 3 minutes in an agrochemical dilute solution (1000 times), taken out, and then processed by the home hygiene treatment apparatus 1 having the above-described configuration.
Processing conditions:
The volume of the storage space 5 of the main body box 3 (height 300 mm × depth 650 mm × width 650 mm)
UV lamp 31 (20W), UV lamp 33 (20W)
Method for verifying the amount of pesticide: Gas chromatographic method (green onion, cucumber)
High-performance liquid chromatographic method (mango)

And as below, the reduction effect of the agricultural chemicals before and after the treatment was verified. Furthermore, about the onion, while verifying the component change before and after a process, the unprocessed thing and the processed thing were stored in the refrigerator, and it contrasted and observed visually over 6 days.

  Since residual agricultural chemicals also become a problem for brown rice, the household hygiene treatment device used in Example 1 was used to irradiate C ultraviolet rays over 20 minutes to verify the presence or absence of component deterioration.

  Residual pesticides also become a problem for various other fruits and vegetables, so after irradiating with C ultraviolet rays for 10 minutes using the household hygiene treatment device used in Example 1, it was treated as untreated. The samples were stored in a refrigerator and visually observed for 6 days.

Indoor sanitization effect was verified using the household sanitization apparatus used in Example 1.
A household hygiene treatment device was installed in the cooking chamber (66 m ² ), and petri dishes were installed in 12 appropriate places to measure the number of viable bacteria before and after the treatment. The exposure time with the petri dish lid open, that is, the exposure time was 5 minutes.

Using the household hygiene treatment device used in Example 1, the sterilization effect inside the freezer car (2 tons) was verified.
A household hygiene treatment device was installed in the freezer car, and petri dishes were installed in five appropriate places to measure the number of viable bacteria (/ mL) before and after the treatment. The exposure time with the petri dish lid open, that is, the exposure time was 5 minutes.

  By treating the turbid water (2 L) using the household sanitization apparatus used in Example 1, and measuring the number of viable bacteria (/ mL) before and after the treatment by the standard agar mixing culture method, the bacteria are eliminated. The effect was verified. In addition, negative / positive of the coliform group was examined by EC blue culture method.

Shark bone was baked at about 120 ° C. for 2 hours, cooled in a refrigerator, and then pulverized to produce shark bone powder.
And the sanitary bone treatment was processed using the household sanitization processing apparatus used in Example 1, and the bacteria elimination effect was verified by measuring the number of viable bacteria (/ mL) before and after the treatment. In addition, negative / positive of the coliform group was examined.

From the above experimental results, it has been confirmed that the sanitizing apparatus for home use of the present invention can effectively perform any of pesticide residue reduction, sterilization of food, water, etc., and indoor sterilization.
The home hygiene treatment apparatus of the present invention is compact and does not take an installation place, and can be used not only for sterilization of food, tableware, water, etc., but also for removal of agricultural chemicals, as well as indoor sterilization equipment. It is expensive and is equipped with a safety mechanism, so it is suitable for carrying out comprehensive hygiene management at home.
Recently, in order to protect the safe life of the family, including eating habits, comprehensive hygiene management is required at home, but I believe that this device can contribute a lot.

It is a perspective view of the household sanitization processing apparatus which concerns on embodiment of this invention. It is a perspective view inside the household sanitization processing apparatus of FIG. It is sectional drawing of the household sanitization processing apparatus of FIG. It is explanatory drawing of the 1st usage method of the household sanitization processing apparatus of FIG. It is sectional drawing of the household sanitization processing apparatus which concerns on the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Household hygiene processing apparatus 3 Main body box 5 Processing space 9 Opening / closing door 15 Inlet 17 Antibacterial filter 19 Outlet 23 Control panel 31,33 Ultraviolet lamp 37 Rectangular plate-shaped mounting member 39 Photocatalyst materials 41, 41 A pair of rails Part 43 Sirocco fan 45 Antibacterial filter member 47 Ultraviolet shielding member 51 Household sanitization processing device 53 Rack-shaped mounting member
S Food D Tableware

Claims (3)

  A main body box having an ultraviolet shielding function, a processing space provided in the main body box for accommodating and processing materials to be processed such as food, tableware, water, and air, and a photocatalyst material supported on the inner surface of the main body box And an ultraviolet irradiation unit for irradiating C-ultraviolet (UV-C) toward the material to be treated and the photocatalyst material, an air inlet / outlet formed in the main body box, and an ultraviolet irradiation unit. The ultraviolet ray shielding member for preventing the ultraviolet rays from leaking out from either or both of the discharge port and the suction port, and the circulation of the air in the processing space and the external air through the suction port and the discharge port Based on the opening information provided from the opening / closing detection means, the opening / closing detection means for detecting opening / closing of the opening / closing door, the opening / closing door provided in the main body box and partitioning the housing space. And a control unit that stops the irradiation of the C ultraviolet rays from the ultraviolet irradiation unit, household sanitary processing apparatus characterized by comprising a display lamp for displaying whether or not the ultraviolet irradiation unit is irradiated with ultraviolet rays. The household sanitization treatment apparatus according to claim 1, further comprising a net placement member on which a material to be treated such as food and tableware is placed so as to be freely put in and out of an intermediate position of the treatment space. A hygienic treatment apparatus for home use, which is also carried on the surface of a net placing member, and the ultraviolet irradiation section is arranged above and below the net placing member. The household sanitization processing apparatus according to claim 1 or 2, wherein an antibacterial filter is provided at the inlet and the outlet.

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