JP2004184040A - Low-temperature storage shed - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the degradation of deodorizing effects of a storage shed. <P>SOLUTION: In the storage shed A, an ozone generating means for entrapping outside air to generate ozone and a cooling means 3 are placed at its upper part. An outlet 9 for cool air from the cooling means placed therein and an outlet 11 for ozone from the ozone generating means are provided in the shed at its ceiling. The outlet 11 for the ozone is placed on the downstream side of the outlet 9 for the cool air to allow the ozone to be uniformly diffused into the shed by the cool air. Thus, the ozone generated by the outside air is introduced in the shed and the degradation of the deodorizing effects is prevented, without creating products resulting from ill odor of stored articles on an electrode of an ozone generator. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low-temperature storage for temporarily storing used clothes, bedding, etc., which are sources of foul odors and contamination such as bacteria, until cleaning.
[0002]
[Prior art]
In public facilities such as nursing homes and hospitals, the inmates have to deal with a large amount of laundry.
[0003]
Therefore, it was necessary to provide a storage place for temporarily accumulating laundry.
[0004]
However, if the laundry thus collected is left in a storage place as it is, there is a problem that it emits a bad smell or becomes dirty.
[0005]
That is, since the above-mentioned laundry is a miscellaneous thing such as clothing and bedding that emits an odor such as sewn cloth, underwear, bedding, sheets, and the like, they combine to emit a bad smell.
[0006]
One way to solve this problem is to provide a storage for collected laundry and put it in the storage for deodorization.
[0007]
For example, there is a locker provided with a deodorizing device described in Patent Document 1.
[0008]
As shown in FIG. 7, this device is provided with a suction port 8 and a discharge port 9 opened on the inner surface of the locker, and a fan D and an ozone generator O are connected to a duct D communicating the suction port 8 and the discharge port 9. A catalyst and a heater H are provided. Then, the odor in the locker sucked into the duct D from the suction port 8 is oxidized and decomposed by ozone to make it odorless, and the odor is returned to the locker again from the outlet 9, thereby enabling deodorization and sterilization in the locker. At this time, the ozone used is heated by a heater H to make the ozone harmless.
[0009]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 9-239015
[Problems to be solved by the invention]
However, in the above-mentioned locker, the air in the refrigerator is circulated to the ozone generator to decompose the odor. There is a problem that generation (adhesion) of ozone is hindered because generation of ozone is hindered.
[0011]
In addition, the amount of ozone generated by the ozone generator in the refrigerator is constant per unit time regardless of the amount and type of the stored items. If the stored amount is insufficient or excessive, a uniform ozone effect is expected. Can not. As a result, it is troublesome to adjust the storage amount each time.
[0012]
In addition, the provision of a heater that is used only for detoxifying unnecessary ozone (for example, with a small storage amount) is a wasteful problem in terms of both energy consumption and cost. is there.
[0013]
SUMMARY OF THE INVENTION It is an object of the present invention to provide a uniform deodorizing and sterilizing effect of ozone irrespective of the amount and type of stored items.
[0014]
[Means for Solving the Problems]
In order to solve the above problems, according to the present invention, an ozone generating means for taking in outside air to generate ozone and a cooling means are mounted on an upper part of a storage which can be moved in and out by a door. A cooling air outlet from the cooling means and an ozone outlet from the ozone generating means are provided on the ceiling in the refrigerator so that the amount of ozone introduced can be adjusted, and ventilation means for replacing air in the refrigerator is provided. Thus, a configuration was adopted in which the ozone concentration in the refrigerator could be adjusted according to the contents in the refrigerator.
[0015]
By adopting such a configuration, the inside of the refrigerator is cooled by the cooling means, thereby preventing the growth of bacteria and the like and suppressing the generation of odor.
At this time, since the ozone generating means uses the outside air to generate ozone, a large amount of ozone can be continuously generated without adhering a nitric acid compound to the electrode due to bad smell in the refrigerator. At this time, since the ozone produced by the outside air is introduced into the refrigerator, the amount of ozone in the refrigerator can be adjusted by adjusting the amount of introduction or adjusting the amount of generation by changing the applied voltage. . In addition, if the ozone concentration in the storage is adjusted by replacing the air in the storage with the ventilation means, the deodorizing effect can be optimized according to the stored items.
[0016]
Also, at this time, by adopting a configuration in which the above-mentioned ozone generating means is a rotary cylindrical ozonizer, the rotary cylindrical ozonizer can reduce the amount of ozone generated by changing the rotation speed of the rotary electrode or the applied voltage. Can be adjusted, so that the ozone concentration can be adjusted according to the amount and type of the stored matter.
[0017]
Further, at this time, it is possible to adopt a configuration in which the cool air outlet blows the cool air in parallel with the ceiling, and an ozone outlet is provided downstream of the cool air outlet.
[0018]
By adopting such a configuration, the ozone outlet is provided downstream of the cool air outlet blown out in parallel with the ceiling, so that the ozone blown out from the outlet is put on the cool air and diffused into the refrigerator. Can be evenly sprayed.
[0019]
Also, at this time, the ozone generating means stopped at the time of entering the warehouse is determined by the door switch which is turned on / off by opening and closing the door and a plurality of switches provided inside and outside the warehouse at the time of leaving the warehouse. By operating them in the order given, it is possible to adopt a configuration in which the operation of the ozone generating means can be restarted.
[0020]
By adopting such a configuration, the door switch and a plurality of switches provided inside and outside the refrigerator stop the ozone generating means to prevent the ozone inside the refrigerator from affecting the human body at the time of entry, If the switches are not operated in a predetermined order, the ozone generating means cannot be operated.For example, if switches in the refrigerator are provided along the exit path, all the switches are activated to move out of the refrigerator. Otherwise, the ozone generating means cannot be operated and safety can be maintained.
[0021]
At this time, by adopting a configuration in which the storage is of an assembling type, the low-temperature storage can be installed anywhere as long as there is an appropriate space.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a low-temperature storage A of this embodiment.
The low-temperature storage A is for temporarily storing odor-causing clothing, bedding, and the like, such as sewn cloth, underwear, bedding, and sheets, and is provided with a door 2 for entrance and exit as shown in FIG. It is of a size that allows a person to stand and work in the refrigerator. The storage A has a structure in which the ozone generating means 1 and the cooling means 3 are mounted on the upper part.
[0023]
The door 2 is provided with a gasket around the door and has a sealed structure, and has a viewing window made of a pair of glass.
[0024]
The storage A includes a front panel, a side panel, a back panel, a bottom panel, and a top panel to which the door 2 is attached. Each panel has a well-known rotary hook or a slit for engaging the hook. Is provided. For this reason, the end of the panel to be engaged is aligned, the hook of the rotary hook is protruded with a hexagonal wrench or the like, and if it is engaged with the slit, it can be assembled with one touch.
[0025]
At this time, the rear panel can be divided into two parts, and can be disassembled for easy transportation. Each panel has a heat insulating structure in which a rigid foamed polyurethane layer is sandwiched.
[0026]
The cooling means 3 includes a refrigerating device including a compressor, a condenser, and a cooler 4, and a cool air chamber 5 having a cooler 4 of the refrigerating device as shown in FIG.
[0027]
As shown in FIG. 2, the cool air chamber 5 communicates with an opening 6 provided on a ceiling in the refrigerator. As shown in FIG. 2, a substantially L-shaped current plate 7 is attached to the opening 6 so that the suction side and the discharge side of the cooler 4 are separated to form a suction port 8 and a discharge port 9. The blower fan provided on the discharge side of the cooler 4 blows cool air from the outlet 9 along the ceiling.
[0028]
In this embodiment, the ozone generating means 1 is of a rotary cylindrical type. As shown in FIG. 3, the rotary cylindrical ozone generating means 1 has a double structure in which a cylindrical internal discharge electrode IP is provided inside a cylindrical external discharge electrode OP, and rotates the internal discharge electrode IP. While applying a high voltage between the external discharge electrode OP and the internal discharge electrode IP, continuous discharge can be performed. By doing so, the large electrode area by spreading the discharge from the point to the line and from the line to the surface using the peripheral surface of the cylinder, and the action of preventing the nitrate compound from adhering due to the rotation of the electrode IP, contribute to the reduction of ozone. The amount of generation is improved. Further, the amount of ozone generated can be controlled by adjusting the voltage applied between the electrodes and the rotation speed of the electrode IP at this time.
[0029]
Therefore, here, outside air is introduced between the cylindrical electrodes of the ozone generating means 1 and the generated ozone is piped to the ozone generating chamber 10 provided on the downstream side of the cool air chamber 5 as shown in FIG. The ozone is led out, and the led-out ozone is allowed to flow into the inside of the refrigerator from the outlet 11 connected to the ceiling. By doing so, the ozone flowing into the storage from the outlet 11 can be diffused into the storage by the cool air blown out from the outlet 9 and can be evenly distributed to the storage items.
[0030]
At this time, the adjustment of the amount of ozone is performed by the control panel 15 provided above the front panel.
[0031]
In the storage A, a ventilation fan is provided as a ventilation means 12 on a side panel. In this case, the ventilation fan is provided with a shutter. When the shutter is closed, the inside of the refrigerator can be kept in a closed state. The ventilation fan can be turned on and off by a switch box ₄ provided next to the door 2 on the front panel. , Timer control is also possible.
[0032]
On the other hand, as shown in FIG. 4, the inside of the storage room A is covered with a resin-made mushroom whose surface has been subjected to a non-slip process so that air can be easily ventilated even when objects are placed in the storage room. At the same time, safety measures have been taken to prevent slippage during loading.
[0033]
On the other hand, as shown in FIG. 4, the storage A has a door switch LS that is turned on and off by opening and closing the door 2 and a plurality of switches Box _1-3 provided inside and outside the storage. A safety circuit comprising a circuit is provided.
[0034]
The switch boxes Box ₁ and Box ₂ are attached to the right and left sides of the rear panel on the front of the warehouse separated from the door 2. On the other hand, the switch box ₃ is attached to the inside of the front panel, that is, beside the opening / closing side of the door 2. The switch box ₄ is mounted on the outside of the front panel, that is, on the side of the opening / closing side of the door 2.
[0035]
Each switch box _{Box 1-4,} as shown in FIG. 5, for example, self-reset type push switch _{PBb 1-4} of holding relay _{RL 1-3,5,} display lamp PLr, PLg, emergency stop switch _{PBa 1- 3} (excluding Box ₄ ), and these switch boxes _1-4 are connected in series.
[0036]
Specifically, each switch box _1-4 connects a self-return type push switch PBb _1-4 and a holding relay RL _1-3 , ₅ in series, and a of the holding relay RL _1-3 , ₅ A contact is connected in parallel with the switches PBb _1-4 to form a holding circuit. Further, a red display lamp PLr is connected in parallel with the holding relays RL _1-3 and _5, and the lamp PLr activates the holding relays RL _{1-3 and 5} to activate the switch boxes _1-4. It lights up when it is turned on. Further, a green display lamp PLg is connected in parallel with the series circuit of the push switches PBb _1-4 and the holding relays RL _1-3 , ₅ . Normally, the green display lamp PLg is lit during energization, and when the holding relays RL _{1-3, 5} are activated, there is no potential difference and the light is turned off.
[0037]
Also, the emergency stop switch _{PBa 1-3} is provided in series with the push switch _{PBb 1-4,} it is also available to the circuit open in an emergency.
[0038]
The switch box _{Box 1-4} is that in the remaining through a contact point of the front and the current box emergency stop switch _PBa 1-3 (Box ₄ holding relay _{RL 1-3,5} each box _{Box 1-4,} emergency It is adapted to connect the contact a) and the door output relay RL ₆ which will be described later, instead of the stop switch _{PBa 1-3,} is connected to the power supply _{V DD} via the front of the switch box _{box 1-4.} Therefore, when the preceding switch box Box _1-4 does not operate, the subsequent switch box Box _1-4 does not operate, thereby forming a sequential circuit.
[0039]
Thus the switch box Box ₄ of a connected final stage, the holding relay RL ₅ and Yes output relay RL ₄ connected are provided in parallel, between the power supply V _DD and the ozone generation means 1 to a contact of the relay RL ₄ The ozone generator 1 is turned on / off by the output of the sequential circuit.
[0040]
In order to turn off the output relay RL ₄ , as shown in FIG. 5, a relay RL ₆ for door output is provided, connected in series with the door switch LS, and the contact a of the relay RL ₆ is connected to a switch box. It is provided in place of the emergency stop switch of Box ₄ .
[0041]
At this time, in this embodiment, two door switches LS are attached to the entrance door (LS ₁ , LS ₂ ), and the two switches LS ₁ , LS ₂ are connected in series, for example, one door. switch LS ₁ or LS ₂ undergoes a failure, and opened the door 2 even in the closed state the other switch is open Yes allowed to be off the relay RL _6, are enhanced safety.
[0042]
Therefore, when the door switch LS is on with the entrance door 2 closed, the relay RL ₆ is activated, the switch box ₄ is activated, and the output relay RL ₄ can be activated. Conversely, when the door 2 is opened, the door switch LS is turned off, the relay RL ₆ is turned off, and the output relay RL ₄ is also turned off.
[0043]
Further, in this circuit, a relay RL ₇ is provided, and the relay RL ₇ is connected in series with the contact b of the door output relay RL _{6 and} the contact a of the holding relay RL ₅ of the switch box ₄ and connected in series. form a reset circuit RS and the b-contact of the relay RL ₇ connected between the switch box box ₁ and the power supply _{V DD.}
[0044]
In the reset circuit RS, normally, the relay RL ₇ is turned on, the b-contact of the relay RL ₇ is closed, and the sequential circuit is connected to the power supply V _DD and is energized. For example, the switch box Box ₄ (outside the compartment) ) opened the entry and leaving the door 2 not operate the, a contact holding relay RL ₅ is "closed", the relay RL ₇ b contacts the door for the output relay RL ₆ is a "closed" is turned off. Therefore, b contact of the relay RL ₇ resets the sequential circuit is "open", the ozone generating means 1 are as ozone in the refrigerator turned off not released.
[0045]
This circuit is provided with a buzzer circuit B for alarm. Buzzer circuit B for alarm is connected to a contact in series with the contact b and the door output relays RL ₆ holding relay RL ₅ of the final stage switch box Box _4, holding the series circuit of the switch box Box ₃ relay It is connected to the output of the RL _5.
[0046]
Therefore, if the switch box ₄ (outside the box) is not operated when the door 2 is closed, the contact a of the relay RL ₆ is closed and the contact b of the holding relay RL ₅ is closed. Thus, the buzzer Bz sounds and the entrance / exit door 2 is closed. At this time, even if the entrance / exit door 2 is closed and an alarm sounds, the ozone generator 1 does not operate unless the external switch box ₄ is operated, so that it is safe. Incidentally, if the door 2 is opened, the alarm stops.
[0047]
This circuit is provided with a main switch MS. By operating this switch MS, the entire circuit can be returned to the initial setting.
[0048]
AVR in the figure is a constant voltage power supply for stably operating the circuit.
[0049]
This embodiment is configured as described above, and in this storage A, the cool air generated by the cooling means 3 is blown out from the outlet 9 and circulated in the storage to be cooled constantly to prevent the growth of bacteria. To prevent the generation of offensive odor, and ozone blown out from the outlet 11 provided downstream of the outlet 9 in the refrigerator is put in the cool air and diffused into the refrigerator, and the diffused ozone is uniformly distributed to the contents in the refrigerator. By spraying and deodorizing and sterilizing, it is stored while preventing the generation of offensive odor from the contents.
[0050]
At this time, since the ozone generating means 1 produces ozone with the taken-in outside air and introduces the ozone into the storage, no nitric acid compound is generated on the electrode of the ozone generating means 1 due to the malodorous component of the contained matter. As a result, generation of ozone is not hindered by the generated compound, so that a strong deodorizing power can be maintained.
[0051]
Also, at this time, the amount of the ozone introduced into the chamber is adjusted, the voltage applied to the electrodes OP and IP to the ozone generating means 1 and the number of rotations (since this embodiment is a rotary type, the number of rotations of the electrode IP is reduced). By adjusting (adjustment is also possible), the ozone concentration in the refrigerator can be changed according to the storage amount, and an optimal deodorizing effect can be obtained.
[0052]
Further, by periodically and forcibly replacing the air in the refrigerator by the ventilation means 12, it is possible to refresh the refrigerator and introduce fresh ozone to improve the deodorizing effect.
[0053]
Incidentally, the thus the refrigerator deodorizing state, upon entering for carrying and unloading operations of the receiving material, since the ozone concentration in some cases as high as dangerous, firstly, the ventilating means in the switch box Box ₄ 12 To discharge the ozone in the refrigerator.
[0054]
Next, in the storage A, normally, the sequential circuit is held in a set state (a state in which the holding relays RL _1-3 and _RL5 are operated).
[0055]
Therefore, when a person enters the warehouse, first, the main switch MS is turned off, and the display lamp PLg of the switch box Box ₄ outside the warehouse (outside the warehouse: next to the entrance / exit door 2) is turned off. After confirmation, the door 2 is opened to enter. At this time, since all the relay RL _1-7 circuits are reset, the ozone generator 1 is stopped. Also, only the green energization display lamp PLg of the switch box Box ₁ should be lit in the refrigerator. Therefore, confirm this and go inside.
[0056]
At that time, if you open the entry and leaving the door 2 off forgotten the main switch MS (If you forget to return to the initial setting), door switch LS is turned off, is also turned off door output for the relay RL _6. At this time, even if the switch box ₄ is turned on, the holding relay RL ₅ is also turned on, so that the contact b of the door output relay RL ₆ used in the reset circuit RS is closed, and at the same time, , a contact of the holding relay RL ₅ of the switch box box ₄ is also "closed". As a result, the relay RL ₇ of the reset circuit RS is turned on, b contact of the relay RL ₇ is opened. Therefore, the switch boxes Box _1-4 of the sequential circuit connected to the power supply _VDD via the b contact are instantaneously released from being held, and the ozone generation means 1 is also turned off so that ozone is not released into the storage. . And thus, when the holding relay RL ₅ of the switch box Box ₄ is turned off, for a contact of the holding relay RL ₅ is opened, it becomes off relay RL ₇ of the reset circuit RS, b of the relay RL ₇ When the contacts “close”, the sequential circuit is connected to the power supply _VDD . Therefore, among the switch boxes Box _1-3 in the storage, only the green energization display lamp PLg of the upstream switch box Box ₁ is turned on, and after confirming this, the user enters the storage.
[0057]
On the other hand, when closing the entry and leaving the door 2 by mistake during warehousing, door output relay RL ₆ is turned on, a contact of the door output relays RL ₆ provided on the buzzer circuit B is "closed" Jirutame, The buzzer circuit B sounds and informs. At this time, even if the buzzer Bz sounds, the ozone generation means 1 does not operate unless the external switch box Box ₄ (push switch PBb ₄ ) is operated, so it is safe. However, the emergency stop button of the switch box Box _1-3 near hand is safe. activating the PBa _1-3, the holding relay RL ₅ is turned off, the power supply _{V DD} with in a contact holding relay RL ₅ can clear the switch box _{box 1-4} downstream being supplied. For this reason, even if all the switch boxes _1-4 are turned on during storage, if the emergency stop button PBa _1-3 is operated, the output relay RL ₆ is turned off and the ozone generation means 1 is turned off. It is safe because it can be turned off. In addition, at the same time to operate the emergency stop button PBa _1-3, it is also possible to inform and stimulate that you are in.
[0058]
Note that the buzzer Bz can be stopped by turning off the main switch MS once or leaving the buzzer Bz out of the refrigerator in a predetermined procedure.
[0059]
The predetermined procedure for exiting from the inside of the compartment is to operate the switch box Box ₁ → Box ₂ → Box ₃ in this order. Finally, when the entry / exit door 2 is closed and the switch box ₄ is operated, the output relay RL ₄ is activated and the ozone generator 1 is turned on, so that ozone can be discharged into the storage.
[0060]
In this manner, by having to operate sequentially from the switch box _{1 that is} separated from the entrance door 2, for example, even when there are a plurality of workers in the warehouse, the switch boxes in the warehouse are sequentially activated. You can leave while checking the safety while you go.
[0061]
In this embodiment, four switch boxes are shown. However, the present invention is not limited to this. For example, as shown in FIG. 1), (2)...), And the number and arrangement can be changed.
[0062]
As described above, since ozone is generated using outside air, a large amount of ozone can be continuously introduced into the refrigerator to obtain a high deodorizing effect. At that time, the ozone concentration in the refrigerator can be adjusted according to the amount and type of the stored items, so that a high deodorizing effect can be obtained. Further, the inside of the refrigerator can be exhausted by the ventilation means to improve the deodorizing efficiency. Furthermore, ozone is forcibly exhausted, and safety is ensured without using a heater, so there is also an energy saving effect. In addition, since a safety circuit is provided, safety during loading and unloading can be ensured.
[0063]
【The invention's effect】
According to the present invention, as described above, a uniform and high deodorizing effect can be obtained irrespective of the amount and type of the stored items.
[Brief description of the drawings]
FIG. 1 is a front view of an embodiment; FIG. 2 is a cross-sectional view of an embodiment; FIG. 3 is an operation explanatory view of the embodiment; FIG. FIG. 7 is a cross-sectional view of a conventional example.
DESCRIPTION OF SYMBOLS 1 Ozone generation means 2 Entry and exit door 3 Cooling means 4 Cooler 5 Cold air chamber 6 Opening 7 Rectifier plate 8 Suction port 9 Blow-out port 10 Ozone generation chamber 11 Blow-out port A Low temperature storage box _{1-4 1-4} switch box LS door switch

Claims (5)

An ozone generating means for taking in outside air to generate ozone and a cooling means are mounted on the upper part of the storage which can be accessed by a door, and a cool air outlet from the mounted cooling means and ozone generation. The outlet of the ozone from the means is provided on the ceiling in the refrigerator so that the amount of ozone introduced can be adjusted, and the ventilation means for replacing the air in the refrigerator is provided to reduce the ozone concentration in the refrigerator. Low temperature storage that can be adjusted according to the object. The low-temperature storage according to claim 1, wherein the ozone generating means is a rotary cylindrical ozonizer. The low-temperature storage according to claim 1 or 2, wherein the cool air outlet blows the cool air in parallel with the ceiling, and an ozone outlet is provided downstream of the cool air outlet. A door switch that turns on and off when the door is opened and closed, and a plurality of switches provided inside and outside the warehouse, activate the ozone generating means that is stopped at the time of entering the warehouse in the order determined by the switch inside the warehouse and the door switch when leaving the warehouse. The low-temperature storage according to any one of claims 1 to 3, wherein the operation of the ozone generating means can be restarted by causing the operation. The low-temperature storage according to any one of claims 1 to 4, wherein the storage is an assembling type.

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