JP2011252612A - Food storage container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To variably control the operation rate of an ozone generator 200 corresponding to the change of an environment inside a storage compartment of a refrigerator, and to stably maintain the concentration of ozone even when the environment inside the storage compartment is changed.SOLUTION: A food storage container includes: a storage box 170 in which a storage compartment (vegetable compartment 120) for storing food is formed; an ozone generator 200 for generating ozone to be supplied to the storage compartment; and a control unit 133 for variably controlling the output of the ozone generator. An intra-container environment setting module for changing the environment inside the storage compartment is provided and controlling the operation of the ozone generator 200 is executed by the operation of the intra-container environment setting module.

Description

  The present invention relates to a food storage including a refrigerator, and more particularly to a food storage including air blowing means for circulating air in the storage chamber to prevent air stagnation in the storage chamber.

Conventionally, ozone having a high oxidizing action has been used for sterilization and fungicide in refrigerators and the like. For example, the intercooling refrigerator described in Patent Document 1 is provided with an evaporator and an air blowing means in a separate chamber from the storage room, and the air cooled by the evaporator is blown into the storage room by the air blowing means. The room is cooling. Accordingly, air is forced to flow in the storage chamber, and by generating ozone in the flow, sterilization and antibacterial can be performed over the entire storage chamber.
JP 2001-911146 A

  However, if ozone is generated while the air in the storage room is flowing, the ozone will flow out to the other room and the ozone concentration will be reduced. Conversely, if ozone is generated when the air in the storage room is not flowing, Since there is no outflow of ozone, the ozone concentration becomes high. Even if the ozone concentration in the storage chamber changes due to the cooling state of such a storage chamber, it is considered possible to obtain a certain effect on sterilization and antibacterial, but this ozone concentration change has a further effect, for example, It became a big obstacle to decomposing chemical substances such as agricultural chemicals, and it was found that stabilization of ozone concentration is extremely important.

  This invention is made | formed as a result of the said research, and it aims at provision of the food storage which can stabilize ozone concentration more.

  To achieve the above object, a food storage according to the present invention includes a storage box forming a storage room for storing food, a door for opening and closing the storage box, a compressor, a condenser, a decompressor, and an evaporator. And a refrigerating cycle in which a series of refrigerant flow paths are formed; an ozone generator for generating ozone to be supplied to the storage chamber; and an internal environment setting means for changing the environment in the storage chamber. A control unit that controls the operation of the ozone generator by the operation of the internal environment setting means is provided.

  According to this, the ozone generator can variably control the operation rate of the ozone generator according to the change in the environment in the refrigerator storage chamber, and even when the environment in the storage chamber changes, It becomes possible to maintain the concentration of ozone.

  According to the present invention, the concentration of ozone can be stably maintained with respect to the food stored in the storage room, so that a higher quality food storage can be provided.

  The invention according to claim 1 includes a storage box forming a storage chamber for storing food, a door for opening and closing the storage chamber, a compressor, a condenser, a decompressor, and an evaporator, and a series of refrigerant flows. A refrigeration cycle that forms a path; and an ozone generator that generates ozone to be supplied to the storage room; and an internal environment setting unit that changes the environment in the storage room and an operation of the internal environment setting unit It is a food storage provided with the control part which controls operation | movement of the said ozone generator.

  As a result, the ozone generator can variably control the operation rate of the ozone generator according to the change in the environment in the refrigerator storage chamber, and even if the environment in the storage chamber changes, the ozone generator can be stably controlled. The concentration can be maintained, and a higher quality food storage can be provided.

  According to the second aspect of the present invention, the internal environment setting means is an ON signal of the compressor, and when the ON signal of the compressor is detected, the control unit controls to improve the operating rate of the ozone generator. It is a food storehouse equipped with.

  Thereby, when the flow of the wind is generated in the storage chamber by cooling the storage chamber by the ON signal of the compressor, the amount of sprayed ozone is increased by improving the operation rate of the ozone generator, It is possible to diffuse ozone so as to obtain a more uniform concentration by using the flow of wind in the cabinet.

  In addition, especially when cooling in the storage chamber is performed by indirect cooling using heat transfer such as blowing low temperature cold air cooled by an evaporator into the storage chamber, low temperature cold air is circulated into the storage chamber by an ON signal of the compressor. As the cold air in the storage chamber is changed due to this, the ozone concentration in the storage chamber may decrease due to the sprayed ozone flowing out of the storage chamber, but the ON signal of the compressor is detected as in the present invention. In this case, the amount of ozone sprayed can be increased by improving the operating rate of the ozone generator, and the ozone concentration in the storage chamber can be prevented from decreasing.

  Invention of Claim 3 has a ventilation means to flow the cool air in a storage chamber, and an internal environment setting means is an ON signal of the said ventilation means, and when the ON signal of the said ventilation means is detected, ozone is detected. It is a food storage provided with the control part which controls to improve the operation rate of a generating device.

  Thereby, along with the ON signal of the air blowing means for causing the cool air in the storage chamber to flow, when the flow of wind is generated in the storage chamber, the amount of ozone sprayed is increased by improving the operating rate of the ozone generator, It is possible to diffuse ozone so as to obtain a more uniform concentration by using the flow of wind in the cabinet.

  In addition, particularly when cooling in the storage chamber is performed by indirect cooling using heat transfer such as blowing low-temperature cold air cooled by an evaporator into the storage chamber, low-temperature cold air is circulated into the storage chamber by an ON signal of the blowing means. Since the cold air in the storage chamber is changed due to this, the ozone concentration in the storage chamber may be lowered due to the sprayed ozone flowing out of the storage chamber, but the ON signal of the blowing means is detected as in the present invention. In this case, the amount of ozone sprayed can be increased by improving the operating rate of the ozone generator, and the ozone concentration in the storage chamber can be prevented from decreasing.

  The invention according to claim 4 has a damper in the supply air path of the cold air into the storage chamber, the internal environment setting means is an ON signal of the damper, and when the ON signal of the damper is detected, ozone is It is a food storage provided with the control part which controls to improve the operation rate of a generating device.

  Accordingly, when a wind flow is generated in the storage chamber in accordance with the ON signal of the damper that causes the cool air in the storage chamber to flow, the amount of ozone sprayed is increased by improving the operating rate of the ozone generator, It becomes possible to diffuse ozone so as to obtain a more uniform concentration by utilizing the flow of the inside wind.

  In addition, especially when cooling in the storage chamber is performed by indirect cooling using heat transfer in which low-temperature cold air cooled by an evaporator is blown into the storage chamber, low-temperature cold air is circulated into the storage chamber by an ON signal of a damper. When there is a concern that the ozone concentration in the storage chamber will decrease due to the sprayed ozone flowing out of the storage chamber because the exchange of cold air in the storage chamber will occur, but when the ON signal of the damper is detected as in the present invention In this case, by increasing the operating rate of the ozone generator, the amount of ozone sprayed can be increased, and the ozone concentration in the storage chamber can be prevented from decreasing.

  Invention of Claim 5 has an outside temperature detection means to detect the outside temperature of a food storage, and an inside environment setting means is the detection temperature of the said outside temperature detection means, The detection temperature of the said temperature detection means Is higher than a preset value, it is a food storage that improves the operating rate of the ozone generator than when the temperature detected by the temperature detection means is lower than a preset value.

  As a result, when the outside air temperature is high, the temperature rise in the storage chamber is high, and therefore, when the wind flow is actively generated by actively cooling the storage chamber, the operating rate of the ozone generator is As a result, the amount of ozone sprayed is increased, and it becomes possible to diffuse ozone so as to obtain a more uniform concentration by utilizing the flow of wind in the warehouse.

  Further, in the present invention, when the outside air temperature is low, the temperature rise in the storage room tends to be low. Therefore, when the flow of the wind is difficult to occur due to the difficulty in cooling the storage room, the ozone generator is low. Since it is also preventing the increase in ozone concentration by operating at the operating rate, it becomes possible to stabilize the ozone concentration in the storage chamber more uniformly.

  The invention according to claim 6 includes a door switch for detecting opening / closing of the door provided in the storage room, and the internal environment setting means is detection of opening / closing of the door switch, and the door switch closes the door from opening to opening. When switching to is detected, it is a food storage that improves the operating rate of the ozone generator.

  As a result, there is a concern that when the door is opened, the cool air in the storage room flows out of the storage room and the ozone concentration in the storage room decreases, but in that case, when the door is detected to be closed By improving the operation rate of the ozone generator and actively spraying ozone, the ozone concentration in the storage chamber is stabilized more stably by quickly eliminating the decrease in ozone concentration caused by the door being opened. It becomes possible to make it.

  The invention according to claim 7 is a food storage that stops the operation of the ozone generator when the closing of the door is detected by a door switch.

  As a result, when the door is opened, the cool air in the storage chamber flows out to the user side, so that the user feels ozone odor and becomes uncomfortable, and the user inhales a large amount of ozone. Therefore, it is possible to provide a food storage provided with a higher quality and higher safety ozone generator.

  In addition, when the door is opened, the operation rate of the ozone generating device is improved by the operation of the internal environment setting means as described in the upper claim to promote the generation of ozone, but the generated ozone is moved out of the storage room. It is possible to prevent waste such as spilling, and it is possible to provide a food storage that keeps the ozone concentration in the storage chamber constant with more energy saving.

  In the invention according to claim 8, the ozone generator is operated at a certain output, and when the operating rate of the ozone generator is improved, the operation time of the ozone generator is increased. It is a food storage.

  As a result, the controller can operate the ozone generator with a predetermined output, so that it can be equipped with a highly safe ozone generator, and controls the ON-OFF time of the ozone generator. Since the operation rate can be improved only by doing this, it is possible to provide a food storage device equipped with an ozone generator that is less likely to break down and highly safe because it is easier and simpler to control.

  The invention according to claim 9 is a food in which the ozone generator can be operated with a plurality of outputs, and when the operation rate of the ozone generator is improved, the output of the ozone generator is increased. It is a storage.

  As a result, the amount of ozone generated can be controlled in more detail, and a food storehouse that keeps the ozone concentration in the storage chamber more constant can be provided.

  Next, an embodiment of a food storage according to the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments.

(Embodiment 1)
1 is a front view showing a food storage, FIG. 2 is a longitudinal sectional view of the food storage of the embodiment, FIG. 3 is a block diagram showing a control system of the food storage, and FIG. 4 is a partitioning means. FIG. 5 is a diagram showing the operating rate of the ozone generator by the compressor and the air blowing means, and FIG. 6 is a diagram showing the operating rate of the ozone generator by the air blowing means and the outside air temperature. It is.

  As shown in the figure, the food storage 100 is a refrigerator including three doors 111, and the storage chamber formed by the storage box 170 is divided into three.

  The food storage 100 is provided with a refrigerator compartment 110, a vegetable compartment 120, and a freezer compartment 130 from above as compartmentalized storage compartments. In the same figure, the rectangular broken lines represent the openings of the respective storage chambers, and the food to be stored is carried into the storage box 170 partitioned in a shelf shape from the front and is taken out. It has become.

  Further, the food storage 100 includes a door 111 that can seal the storage box 170 and can be opened and closed. Specifically, the food storage 100 includes a first door 111a capable of opening and closing the refrigerator compartment 110, a second door 111b capable of opening and closing the vegetable compartment 120, and a third door 111c capable of opening and closing the freezer compartment 130. The door 111 is attached to the storage box 170 so that it can be opened and closed by a hinge.

  The storage box 170 has a function to insulate the outside and the inside, and as shown in the ellipse in the figure, an inner box 171 vacuum-formed with a resin such as ABS and a metal material such as a pre-coated steel plate are used. The outer box 172 is used, and the heat insulating material 173 is disposed between the inner box 171 and the outer box 172. Similarly, the door 111 includes an inner plate, an outer plate, and a heat insulating material 173.

  The storage box 170 also includes a cooling means 119 that is a refrigeration cycle that includes a compressor 174, a condenser (not shown), a decompressor (not shown), and an evaporator 175 to form a series of refrigerant flow paths. The low temperature cold air generated by the operation of the cooling means 119 is generated by the evaporator 175.

  Further, in this embodiment, the cooling of the storage chamber by the evaporator 175 includes direct cooling using heat conduction from the evaporator 175 and indirect cooling using heat transfer such as blowing cool air cooled by the evaporator 175. The two cooling methods are used.

  Specifically, the refrigerator compartment 110 is provided with an evaporator 175 on the back wall of the refrigerator compartment 110, and is directly used to cool the inside of the refrigerator compartment 110 by heat conduction from the evaporator 175. For the refrigerating chamber 130, indirect cooling using heat transfer such as blowing low-temperature cold air cooled by the evaporator 175 into the storage chamber is used.

  Moreover, the food storage 100 is provided with the outside temperature detection means (not shown) which detects the outside temperature of the storage box 170.

  The food storage 100 includes an ozone generator 200, a partition unit 210, and a light source 220. Moreover, the storage area is formed in the inside of the vegetable compartment 120 of the food storage 100 by providing the 1st container 123 and the 2nd container 121 which are storage containers, and the lid | cover 122 with which this storage container was equipped, It has.

  The ozone generator 200 is a device that can generate ozone to be supplied to the first container 123 and the second container 121 disposed in the storage chamber. The ozone generator 200 is embedded in the lower surface side of the shelf 115 that partitions the refrigerator compartment 110 and the vegetable compartment 120 toward the inside of the vegetable compartment 120. Therefore, the ozone generator 200 is disposed above an opening 127 of the second container 121 described later, and is disposed at a position spaced from the opening 127 of the second container 121 and facing the opening 127. .

  The control board 132 is a board for controlling the devices by being electrically connected to the cooling means 119, the air blowing means 113, the damper 131, a sensor (not shown), and the like. 133 and the like, and the ozone generator 200 can generate or stop ozone based on a signal from the control board 132.

  By burying the ozone generator in the shelf 115 in this way, the temperature of the ozone generator 200 is hardly changed even by the temperature change of the vegetable compartment 120, and the ozone generation efficiency can be stably maintained. .

  Moreover, it becomes possible to generate ozone as needed.

Here, the ozone generator 200 is not particularly limited as long as it is a device that generates ozone. Specifically, a device for generating ozone (O ₃ ) by irradiating ultraviolet light to oxygen molecules (O ₂ ) in the air, or an electrode disposed in the air is set to a high voltage, and discharge or the like An apparatus that converts oxygen molecules into ozone, an apparatus that electrolyzes a substance containing oxygen such as water, and supplies ozone into the air can be exemplified.

  The partitioning means 210 is a member made of a thin plate that partitions the ozone generator 200 and the storage chamber, and as shown in FIG. . The partition unit 210 partitions the ozone generator 200 and the vegetable compartment 120 by being attached to the lower surface of the shelf 115 so as to cover the ozone generator 200 embedded in the shelf 115. In addition, the partition unit 210 is provided with a number of suction holes 212 in front of the lower surface portion.

  The lower surface portion of the partitioning unit 210 is inclined so that the position gradually decreases toward the rear of the food storage 100, and the discharge hole 211 is disposed in the vicinity of the lowest position.

  As a result, ozone having a higher specific gravity than air is mainly emitted downward from the emission hole 211. On the other hand, the suction hole 212 disposed in the front mainly functions as a hole for sucking the atmosphere outside the partition unit 210. In the case of the present embodiment, the suction port 212 sucks in the cold air that has been discharged along the outer wall of the second container 121, which will be described later.

  Further, the partitioning unit 210 has an ozone generation efficiency of the ozone generator 200, the amount of oxygen that flows into the partitioning unit 210 through the suction hole 212, and the amount of ozone that flows out from the discharge hole 211. It is possible to adjust the density. That is, the partition unit 210 determines the total opening area of the discharge hole 211 and the total opening area of the suction hole 212 provided in the partition unit 210 at the design stage, so that the ozone of the first container 123 and the second container 121 is determined. The density can be adjusted to some extent. Specifically, if there are many discharge holes 211 (the total opening area is wide), the amount of ozone flowing out increases, and the ozone concentration in the first container 123 and the second container 121 increases. Further, since the inflow amount of oxygen increases in proportion to the outflow amount of ozone, the number of discharge holes 211 and the ozone concentration in the first container 123 and the second container 121 are proportional to the limit of the capacity of the ozone generator 200. . On the other hand, when the number of the discharge holes 211 is small (the total opening area is narrow), the amount of ozone flowing out decreases, and the ozone concentration in the first container 123 and the second container 121 decreases. However, the total opening area of the discharge hole 211 and the total opening area of the suction hole 212 are not the only factors that determine the ozone concentration.

  Next, the control method of the control part 133 which controls operation | movement of the ozone generator 200 by operation | movement of the internal environment setting means which changes the environment in the storage chamber which sprays ozone with the ozone generator 200 is demonstrated.

  First, the case where the internal environment setting means is the compressor 174 or the air blowing means 113 will be described.

  In the present embodiment, since the cooling of the vegetable room sprayed with ozone by the ozone generator 200 uses a cooling method of indirect cooling using heat transfer such as blowing cool air cooled by the evaporator 175, the compressor The driving of 174 and the driving of the air blowing means 113 are interlocked.

  Therefore, as shown in FIG. 5, the operating rate of the ozone generator 200 is changed using the ON signal by driving the compressor 174 or the ON signal by driving the air blowing means 113.

  Specifically, when the compressor 174 becomes an ON signal, the air blowing means 113 also becomes an ON signal. At this time, the ozone amount is increased by operating the ozone generator 200 at a high value such as 45%. I am letting.

  When this is performed by indirect cooling using heat transfer such as blowing the low-temperature cold air cooled by the evaporator 175 into the storage room, as in the present embodiment, the inside of the vegetable room 120 as the storage room is cooled. By the ON signal of the compressor 174, the cold air in the vegetable room 120 is replaced as the low temperature cold air circulates into the storage room. That is, low-temperature cold air flows into the vegetable compartment 120 and cold air inside the vegetable compartment 120 flows out of the vegetable compartment 120.

  Therefore, since the sprayed ozone flows out of the storage room together with the cold air, there is a concern that the ozone concentration in the storage room may decrease, but when the ON signal of the compressor is detected as described above, the operation of the ozone generator is performed. By improving the rate, the amount of ozone sprayed can be increased and the ozone concentration in the storage chamber can be prevented from decreasing.

  As described above, when the compressor 174 and the ON / OFF of the air blowing means 113 are linked, the internal environment setting means may use either the compressor ON signal or the air blowing means OFF signal. .

  In the present embodiment, the vegetable compartment 120, which is a storage room to which ozone is sprayed, has an internal environment setting means as an indirect cooling using heat transfer such as blowing cool air cooled by the evaporator 175. In the case where the storage chamber to which ozone is sprayed is a cooling method of direct cooling using heat conduction from the evaporator 175, the compressor is similarly used as the internal environment setting means. When the ON signal is detected, it is effective to increase the spray amount of ozone by improving the operating rate of the ozone generator.

  As a result, even when the cooling method is direct cooling, when the storage chamber is cooled by the ON signal of the compressor and a wind flow is generated in the storage chamber, the operating rate of the ozone generator is improved. As a result, the amount of ozone sprayed increases, and it becomes possible to diffuse ozone so as to obtain a more uniform concentration by utilizing the flow of wind in the storage.

  Next, it must be considered that the ozone concentration changes depending on the environment such as the outside temperature where the food storage 100 is placed.

  This is because the temperature rise in the storage room is high at high outside air temperature, so that the circulation amount of the cold air is extremely increased by actively cooling the storage room, and ozone is the first container 123 which is a storage space for food and the like. Or the second container 121 does not enter and is taken out of the vegetable compartment 120 together with the cold air, and the ozone concentration in the vegetable compartment 120 tends to decrease. On the contrary, at low outside air temperature, the circulation amount of cold air is extremely small, ozone is hardly taken out from the vegetable compartment 120, and the ozone concentration in the vegetable compartment 120 tends to be high.

  That is, the operating state of the refrigerator changes due to the outside air temperature, and the ozone concentration changes accordingly. As will be described later, stabilization of the ozone concentration is extremely important, and the ozone generation output is variably controlled by a signal from the control board 132 in order to stabilize the concentration.

  Therefore, the case where it has further the external temperature detection means which detects the outside temperature of a food storage as an internal environment setting means is demonstrated.

  FIG. 6 is a diagram in which the output of the ozone generator is varied depending on the outside air temperature of the refrigerator. The upper diagram shows an example of the control of the ozone generator at a low outside air temperature, and the lower diagram is at a high outside air temperature.

  The low outside air temperature here was less than 10 ° C., and the high outside air temperature was 10 ° C. or more. As shown in the figure, the operation rate of the compressor is very low in the case of the low outside air temperature as compared with the case of the high outside air temperature.

  As shown in the above figure, in the case of low outside air temperature, when the compressor operation is turned on, the operation rate is improved and the operation rate is 45% during that time because the ON signal is short. When the operation of the compressor becomes an OFF signal, the operation rate is decreased and the operation is performed at the operation rate of 10%.

  In this way, when the outside air temperature is low, the temperature rise in the storage room tends to be low, and therefore the cooling of the storage room is difficult to be performed, and in the case where the flow of wind is difficult to occur, the operation of the ozone generator is low Since it is also preventing the increase in ozone concentration by operating at a rate, it becomes possible to stabilize the ozone concentration in the storage chamber more uniformly.

  In addition, as shown in the figure below, when the outside air temperature is high, the time during which the compressor is turned on is very long, and the compressor is operated at a relatively high operation rate of 30% during the ON signal. However, when the operation of the compressor becomes an OFF signal, the operation is performed at 15% of a relatively low operation rate.

  As described above, when the outside air temperature is high, the temperature rise in the storage chamber is high, and therefore, when the wind flow is actively generated by actively cooling the storage chamber, the operation of the ozone generator is performed. By increasing the rate, the amount of ozone sprayed increases, and it becomes possible to diffuse ozone so as to obtain a more uniform concentration by using the flow of the wind in the warehouse.

  In the present embodiment, the operating rate of the ozone generator 200 means that the operating time of the ozone generator 200 is increased when the operating rate of the ozone generator 200 is improved when operating at a certain output. It is supposed to let you.

  As a result, the controller can operate the ozone generator with a predetermined output, so that it can be equipped with a highly safe ozone generator, and controls the ON-OFF time of the ozone generator. Since the operation rate can be improved only by doing this, it is possible to provide a food storage device equipped with an ozone generator that is less likely to break down and highly safe because it is easier and simpler to control.

  In addition, although the said partition means 210 flowed out ozone by natural convection and flowed in oxygen, you may make it flow out ozone and forcibly take in oxygen using a fan. Furthermore, the movement and stop of the fan may be controlled based on a signal from the control board 132. In addition, an ozone concentration meter is arranged so that the ozone concentration in the second container 121 can be measured, and the ozone generation amount of the ozone generator 200 is adjusted based on information from the ozone concentration meter (for example, the fan is turned on or off). By doing so, the ozone concentration in the second container 121 may be maintained within a predetermined range.

  It is desirable to maintain the ozone concentration in the first container 123 and the second container 121 that are food storage rooms at 0.05 ppm or less. If the ozone concentration is higher than this, there is a risk of affecting the human body performing these operations when the second container 121 is pulled out or when food such as vegetables is extracted from the second container 121 container. . Moreover, it is desirable to maintain at 0.03 ppm or less. This is because, if the ozone concentration is higher than this, the person who performs the operation may feel uncomfortable due to the ozone odor.

  The light source 220 is a device that emits light of a predetermined wavelength that can promote decomposition of agricultural chemicals by ozone to food stored in the vegetable compartment 120 as a storage compartment. In the present embodiment, a light emitting diode (LED) is employed as the light source 220.

  Further, the light source 220 is disposed inside the partitioning unit 210. This is to prevent light of a predetermined wavelength from being absorbed by the light source 220 and degrading the decomposition efficiency of the agricultural chemical.

  Therefore, it is desirable that at least the partitioning unit 210 is made of a material that can sufficiently transmit light having a necessary wavelength among light emitted from the light source 220.

  The wavelength emitted by the light source 220 is a predetermined wavelength that can promote the decomposition of agricultural chemicals by ozone with respect to food stored in the storage room, and any wavelength region in the infrared region, visible region, or ultraviolet region. May be included.

  Specifically, a wavelength that resonates with vibrations of molecules constituting the agricultural chemical is preferable. This wavelength is considered to exist in the infrared region. More specifically, the infrared absorption spectrum of the target agricultural chemical is used, and the wavelength corresponding to the valley portion of the spectrum, such as the wavelength of the strongest absorbing portion, is preferable. For example, the wavelength specified from the infrared absorption spectrum of chlorpyrifos, malathion or pyrethroid pesticides is preferred. This is because it is an agrochemical that is often used in foods and is likely to remain in foods.

  On the other hand, the wavelength at which ozone is activated may be used. For example, the wavelength in the infrared region that ozone absorbs. This is because if ozone is activated, the decomposition of agricultural chemicals is promoted.

  Moreover, the light emission method of the light source 220 should just employ | adopt the method which is easy to decompose | disassemble an agrochemical. For example, a method in which the light source 220 is continuously turned on only when the ozone concentration in the vegetable compartment 120 is equal to or higher than a predetermined value can be considered. The predetermined value is preferably 0.01 ppm or more considering the decomposition efficiency of agricultural chemicals. Further, the light source 220 may be blinked at an emission interval corresponding to a multiple or a divisor of the natural frequency of the molecules constituting the agricultural chemical. As a result, it is considered that light energy can be efficiently input to the pesticide and the pesticide can be easily decomposed with ozone.

  In the present embodiment, a light emitting diode is used as the light source 220. However, the present invention is not particularly limited to this, and the light source 220 that emits light having a continuous spectrum may be used. Further, a light source 220 may be used that is provided with a plurality of light emitting diodes that emit light of different wavelengths.

  In the present embodiment, a cold-cooled refrigerator (vegetable room 120, freezer room 130) has been described as an example, but the present invention is not limited to this.

  For example, a direct cooling type refrigerator (refrigeration room 110) may be provided with the air blowing means 113 in the storage room in order to force the air in the storage room to flow. In this case, the ozone generator 200 may be controlled based on ON / OFF of the air blowing means 113.

  In the present embodiment, the operating rate of the ozone generator 200 is the operating time of the ozone generator 200 when the operating rate of the ozone generator 200 is improved when operating at a certain output. However, the ozone generator 200 may be operable with a plurality of outputs, in which case the output of the ozone generator 200 is increased when the operating rate of the ozone generator 200 is improved. Further control is added.

  As a result, the amount of ozone generated can be controlled in more detail, and a food storehouse that keeps the ozone concentration in the storage chamber more constant can be provided.

(Embodiment 2)
FIG. 7 is a diagram showing the operating rate of an ozone generator using a damper.

  Note that this embodiment can omit the description of the same configuration and technical idea as those of the first embodiment, and can be implemented in combination with the configuration described in the first embodiment.

  In this embodiment, an indirect cooling method is used in which low-temperature cold air cooled by the evaporator 175 is blown into the storage chamber through the supply air passage 176, and the vegetable is a storage chamber in which ozone is sprayed by the ozone generator 200. It is assumed that a damper 131 serving as a cold air regulating valve is provided in the cold air supply air passage 176 for the vegetable room 120.

  As described above, since the opening / closing of the damper 131 is a major factor that changes the environment in the storage chamber in the present embodiment, the internal environment setting means is an ON signal-OFF signal that is the opening / closing of the damper, and these operations are performed. The control method of the control unit 133 that controls the operation of the ozone generator 200 will be described.

  In the state where the compressor 174 is operating, the damper is repeatedly opened (ON signal) and closed (OFF signal) as shown in the figure. When the freezer compartment 130 and the vegetable compartment 120 are cooled by the same evaporator 175 as in the present embodiment, the compressor 174 is driven to cool the center of the freezer compartment 130 with a large cooling load. In the case, it is assumed that the vegetable compartment 120 is cooled by opening the damper 130 and supplying cold air only when the inside temperature rises.

  In this case, the ON signal-OFF signal of the compressor 174 does not directly affect the cooling in the vegetable compartment 120, and the opening / closing of the damper 131 directly affects the cooling in the vegetable compartment 120 rather than the compressor 174. Will do.

  Specifically, when the compressor 131 is in the ON signal and the damper 131 is in the ON signal, the operation rate of the ozone generator 200 is improved and operated at a high value of 45%, The amount of ozone is increased. Even when the compressor is in the ON signal, when the damper 131 is in the OFF state, the operating rate of the ozone generator 200 is reduced to about 15%.

  When this is performed by indirect cooling using heat transfer such as blowing the low-temperature cold air cooled by the evaporator 175 into the storage room, as in the present embodiment, the inside of the vegetable room 120 as the storage room is cooled. By the ON signal of the compressor 174, the cold air in the vegetable room 120 is replaced as the low temperature cold air circulates into the storage room. That is, since low temperature cold air flows into the vegetable compartment 120 and cold air inside the vegetable compartment 120 flows out of the vegetable compartment 120, the sprayed ozone flows out of the storage compartment together with the cold air. There is a concern that the ozone concentration in the room will decrease, but when the ON signal of the damper 131 is detected as described above, the ozone spray amount increases by improving the operating rate of the ozone generator, and the ozone in the storage room The decrease in concentration can be prevented.

  In this embodiment, the case where the damper 131 is opened, that is, the ON signal is set while the operation of the compressor 174 is ON is used as the internal environment setting means. However, the operation of the compressor 174 is not necessarily ON. For example, a damper 131 is provided in the supply air passage 176 using a supply air passage 176 that connects a storage chamber in a temperature range lower than that of a storage chamber that sprays ozone and a storage chamber that sprays ozone. In this case, since the low-temperature cold air flows into the storage chamber when the damper 131 is opened (ON) regardless of the ON / OFF state of the compressor 174, the internal environment setting means is only the ON signal of the damper 131. When the ON signal of the damper 131 is detected, the ozone spray amount is increased by improving the operation rate of the ozone generator, and the concentration of air becomes more uniform by using the flow of the wind in the warehouse. It is possible to diffuse ozone as.

(Embodiment 3)
FIG. 8 is a diagram showing the operating rate of the ozone generator by the door switch.

  In the present embodiment, description of the same configuration and technical idea as in the first and second embodiments is omitted, and the present embodiment can be implemented in combination with the configuration described in the first and second embodiments.

  In the present embodiment, a food storage that includes a door switch in a storage room for spraying ozone and controls the operation of the ozone generator by turning the door switch on and off will be described.

  The vegetable compartment 120, which is a storage compartment in which ozone is sprayed by the ozone generator 200, is provided with a door switch (not shown) that detects opening and closing of the vegetable compartment door 111b.

  The door switch signal is an ON signal when the door is open and an OFF signal when the door is closed.

  When the control unit detects an ON signal indicating that the door is open, the ozone generator 200 stops operation, that is, sets the operation rate to 0%. Thereafter, when it is detected that the door is closed, control is performed to improve the operation rate for a certain period of time. For example, as shown in FIG. 8, the driving rate is 45%, which is the highest during T1 immediately after the door is closed, and the driving rate is reduced to 30% from T1 for T2 hours after the time T1 has elapsed since closing. Then, after the time T1 + T2 has elapsed from the closing of the door, the operation rate is further reduced to the original 15%.

  As a result, the ozone generator 200 is stopped when the door is opened, thereby preventing the cool air containing a large amount of ozone from flowing out to the user side, and the user feels an ozone odor and becomes uncomfortable. In addition to preventing this, a large amount of ozone is prevented from being inhaled by the user, so that it is possible to provide a food storage room equipped with an ozone generator of higher quality and higher safety.

  In addition, when the door is opened, it is possible to prevent waste that the generated ozone flows out of the storage room, and it is possible to provide a food storage that keeps the ozone concentration in the storage room constant with more energy saving.

  Furthermore, when it is detected that the door has been closed from open (from an OFF signal to an ON signal), the ozone generator 200 is operated at a high operation rate, so that it flows out by opening the door and has a low concentration. The ozone concentration in the storage can be improved more quickly.

  In the present embodiment, when the door is opened to closed, the ozone generator 200 is controlled to have a high operation rate in two stages of T1 time and T2 time. Of course, the ozone generator 200 is controlled to have a predetermined time (for example, T1 + T2) in one stage. It is needless to say that the operation rate can be lowered only after a predetermined time has elapsed after a certain period of time.

  Further, when the door is opened and stopped, the operating rate of the ozone generator 200 can be changed by the internal environment setting means as described in the first to third embodiments.

  The present invention can be applied to a food storage where internal air may flow, particularly a storage or a refrigerator for storing foods in which chemical substances such as agricultural chemicals remain.

The front view which shows the food storage of Embodiment 1 Longitudinal sectional view of the food storage of the first embodiment The block diagram which shows the control system of the food storage of Embodiment 1 The perspective view which wants the partition means of Embodiment 1 from the downward direction The figure which showed the operation rate of the ozone generator by the compressor and ventilation means of Embodiment 1. The figure which showed the operation rate of the ozone generator by the ventilation means of Embodiment 1, and external temperature The figure which showed the operation rate of the ozone generator by the damper of Embodiment 2. The figure which showed the operation rate of the ozone generator by the door switch of Embodiment 3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Food storage 110 Refrigerating room 111a 1st door 111b 2nd door 111c 3rd door 113 Blowing means 114 Cooling chamber 115 Shelf plate 119 Cooling means 120 Vegetable room 121 Second container 122 Cover 123 First container 124 Passing hole 125 Adjusting hole 126 Position corresponding to discharge hole 127 Opening part 128 Outflow hole 130 Freezer compartment 131 Damper 132 Control board 133 Control part 170 Storage box 171 Inner box 172 Outer box 173 Heat insulating material 174 Compressor 175 Evaporator 200 Ozone generator 210 Partition means 211 Ejection hole 212 Suction hole 213 Cold air outlet 220 Light source

Claims (9)

  A refrigeration cycle comprising a storage box forming a storage chamber for storing food, a door for opening and closing the storage chamber, a compressor, a condenser, a decompressor, and an evaporator to form a series of refrigerant channels; An ozone generator for generating ozone to be supplied to the storage room, and an internal environment setting means for changing the environment in the storage room and controlling the operation of the ozone generator by the operation of the internal environment setting means A food storage with a control unit.   The internal environment setting means is an ON signal of the compressor, and when the ON signal of the compressor is detected, the internal environment setting means includes a control unit that controls to improve the operation rate of the ozone generator. Food storage.   It has a blowing means for flowing cool air in the storage chamber, and the internal environment setting means is an ON signal of the blowing means, and when the ON signal of the blowing means is detected, the operation rate of the ozone generator is improved. The food storage of Claim 1 or 2 provided with the control part which controls to.   A damper is provided in the cool air supply air passage into the storage chamber, and the internal environment setting means is the ON signal of the damper, and when the ON signal of the damper is detected, the operation rate of the ozone generator is improved. The food storage as described in any one of Claim 1 to 3 provided with the control part which controls to.   When the outside temperature detection means for detecting the outside temperature of the food storage is provided, the inside environment setting means is the detection temperature of the outside temperature detection means, and the detection temperature of the temperature detection means is higher than a preset value The control unit according to any one of claims 1 to 4, further comprising a control unit that controls the operating rate of the ozone generator to be improved as compared with a case where a temperature detected by the temperature detecting unit is lower than a preset value. Food storage as described.   A door switch for detecting opening / closing of the door provided in the storage room is provided, and the internal environment setting means is detection of opening / closing of the door switch, and when the door switch detects switching from opening to closing of the door Is a food storage unit according to any one of claims 1 to 5, further comprising a control unit that performs control so as to improve an operation rate of the ozone generator.   The food storage according to claim 6, wherein when the door is detected to be closed by the door switch, the operation of the ozone generator is stopped.   The ozone generator is operated at a certain output, and when the operating rate of the ozone generator is improved, the ozone generator is provided with a control unit that controls to increase the operation time of the ozone generator. The food storage as described in any one of 7 to 7.   The ozone generator can be operated with a plurality of outputs, and when the operating rate of the ozone generator is improved, the output of the ozone generator is increased. Food storage as described in 1.