JP7371836B2 - storage room - Google Patents

Description

TECHNICAL FIELD The present invention relates to storage.

For example, Patent Document 1 describes a reefer container (housing) that cools the inside of the container to maintain the freshness of objects (particularly fresh foods) stored in the container.

Japanese Patent Application Publication No. 2012-136287

However, in the reefer container described in Patent Document 1, the external environmental temperature of the reefer container is not taken into consideration. Therefore, for example, if the external environmental temperature of the reefer container is sufficiently higher than the cooling temperature inside the reefer container, condensation will occur on the object when it is carried out of the reefer container. The object may be damaged by the condensation.

An object of the present invention is to provide a storage container that can suppress dew condensation on the objects (particularly fresh foods) stored in the storage chamber and prevent damage caused by the condensation when the objects are transported out of the storage room. It is about providing.

Such objects are achieved by the invention described below.

(1) A storage main body having a storage chamber capable of storing the object;
a cooling device that cools the interior of the storage chamber;
an internal temperature sensor that detects the temperature inside the containment chamber;
an external temperature sensor that detects the temperature outside the storage main body;
a control device that controls driving of the cooling device;
The control device includes:
a first drive control mode that controls the drive of the cooling device based on the detection result of the internal temperature sensor;
Based on the detection results of the internal temperature sensor and the external temperature sensor, the difference between the temperature inside the storage chamber and the temperature outside the storage main body is determined when the object is carried out from the storage chamber to the outside of the storage main body. and a second drive control mode for controlling the drive of the cooling device so that the temperature difference is such that no condensation occurs on the object.

(2) The second drive control mode has a plurality of modes,
The storage according to (1) above, wherein the control device selects one mode from the plurality of modes based on information regarding the object.

(3) The control device includes a reception unit that receives implementation of the second drive control mode,
The storage according to (1) or (2) above, wherein when the reception unit receives implementation of the second drive control mode, the cooling device is drive-controlled using the second drive control mode.

(4) the receiving unit receives a timing to start drive control of the cooling device using the second drive control mode;
The storage according to (3), wherein the control device starts drive control of the cooling device using the second drive control mode at the timing received by the reception unit.

(5) The receiving unit receives position information for starting drive control of the cooling device using the second drive control mode,
In (3) above, the control device starts drive control of the cooling device using the second drive control mode after the storage main body reaches a position corresponding to the position information received by the reception unit. The storage listed.

(6) an internal humidity sensor that detects the humidity inside the containment chamber;
The storage according to any one of (1) to (5) above, further comprising an external humidity sensor that detects humidity outside the storage main body.

(7) The storage facility according to any one of (1) to (6) above, including an external atmospheric pressure sensor that detects the atmospheric pressure outside the storage container main body.

(8) The storage according to any one of (1) to (7) above, including an electric field forming device that forms an electric field in the storage chamber.

According to the present invention, before carrying out an object (particularly fresh food) stored in a storage chamber out of the storage chamber, the temperature inside the storage chamber can be adjusted so that the temperature within the storage chamber remains constant even when the object is carried out outside the storage chamber. The temperature can be kept so that no condensation forms on the object. Therefore, dew condensation on the object can be suppressed and damage caused by the dew condensation can be suppressed.

It is a perspective view showing a container concerning a 1st embodiment. FIG. 3 is a sectional view showing the inside of the container. FIG. 2 is a block diagram showing the configuration of a control device. It is a graph for explaining the mechanism of dew condensation. It is a graph which shows an example of the method of raising the temperature in a storage chamber to a target temperature. It is a table showing an example of tempering temperature control mode.

<First embodiment>
A container 1 (accommodation warehouse) shown in FIG. 1 is a mobile container mounted on a truck, ship, airplane, or the like. The container 1 is a so-called "reefer container", and includes a container main body 2 (accommodation main body) having a storage chamber 20 for storing objects, a cooling device 3 for cooling the inside of the storage chamber 20, and a cooling device 3 for cooling the inside of the storage chamber 20. an internal temperature sensor 41 that detects the temperature of the container 1; an internal humidity sensor 42 that detects the humidity inside the storage chamber 20; an external temperature sensor 43 that detects the outside temperature, that is, the temperature of the environment in which the container 1 is placed; An external humidity sensor 44 that detects the humidity of the environment in which the container 1 is placed, an external atmospheric pressure sensor 45 that detects the external pressure, that is, the atmospheric pressure of the environment in which the container 1 is placed, and an electric field that forms an electric field within the storage chamber 20. It has a device 5 and a control device 9 that controls each of these parts. Note that "humidity" as used herein means "relative humidity" even if there is no particular explanation.

Such a container 1 has a configuration that complies with, for example, an international standard (ISO standard), and is, for example, a "20-foot container" with a total length of 20 feet or a "40-foot container" with a total length of 40 feet. By having a configuration that complies with international standards, the container 1 is excellent in convenience and versatility, and also has sufficient reliability. However, the container 1 does not necessarily need to comply with international standards (ISO standards), and the shape and configuration of the container 1 are not particularly limited. Furthermore, the container 1 may be a fixed container used in a store, warehouse, etc. instead of a mobile container. Furthermore, the storage is not limited to the container 1, but can also be applied to, for example, a cooling warehouse, a refrigerator, etc.

Target objects are not particularly limited, and include, for example, seafood such as fish, shrimp, crab, squid, octopus, and shellfish, and processed foods thereof, and fruits such as strawberries, apples, bananas, mandarin oranges, grapes, and pears, and fruits such as these. Processed foods, vegetables such as cabbage, lettuce, cucumbers, and tomatoes, and processed foods thereof, fresh foods such as meat such as beef, pork, chicken, and horse meat, various dairy products such as milk, cheese, and yogurt, wine, brandy, and whisky. , various beverages such as milk, vegetable juice, fruit juice, etc. Among these, particularly preferred objects are fresh foods. In the following, the target object will be explained as fresh food.

The container body 2 has a substantially rectangular parallelepiped shape extending in the depth direction, and is provided with a storage chamber 20 for storing objects therein. The container body 2 is mainly composed of an inner wall, an outer wall, and a heat insulating material provided between the inner wall and the outer wall, so that the storage chamber 20 is sufficiently insulated and is not easily affected by outside temperature. It becomes. With such a configuration, the inside of the storage chamber 20 can be efficiently cooled by the cooling device 3. Note that, although not particularly limited, the inner wall and the outer wall can each be made of various metals such as stainless steel and aluminum.

Further, a pair of double doors 21 and 22 are provided at the front end of the container body 2 in FIG. By opening the doors 21 and 22, it becomes possible to carry the object into or out of the storage chamber 20. However, the arrangement and configuration of the doors 21 and 22 are not particularly limited. On the other hand, a cooling device 3 is provided at the end of the container body 2 on the back side in FIG. In the container 1 of this embodiment, the wall located at the far end of the container body 2 in FIG. It may be composed of.

As shown in FIG. 2, the cooling device 3 is provided at the back end of the storage chamber 20 when viewed from the doors 21 and 22, and includes a suction section 31 that sucks air inside the storage chamber 20, and an intake section 31 that sucks air inside the storage chamber 20. It has a cooling device 32 that cools the air taken in from the cooling device 31, and a blowing portion 33 that blows out the air cooled by the cooling device 32, that is, cold air, into the storage chamber 20.

The blowing section 33 is provided near the floor surface 202 of the storage chamber 20 and blows out cold air toward the floor surface 202. The cold air blown out from the blow-off part 33 flows along the plurality of grooves 24 formed along the longitudinal direction of the container body 2 on the floor surface 202 of the storage chamber 20, and hits the doors 21 and 22, or hits the doors 21, 22 or in front of them. It rises and reaches the ceiling surface 201 of the storage chamber 20. On the other hand, the suction unit 31 is provided near the ceiling surface 201 of the storage chamber 20 and sucks in the cold air rising from the floor surface 202 to the ceiling surface 201 or its vicinity.

According to such a configuration, the cold air can be efficiently circulated throughout the storage chamber 20, so that the objects in the storage chamber 20 can be cooled evenly and appropriately. The temperature that can be set inside the storage chamber 20 is not particularly limited, but is preferably about -30°C to +30°C, for example. Moreover, the cooling device 3 has a function of adjusting the humidity inside the storage chamber 20 in addition to the temperature inside the storage chamber 20. However, the configuration and arrangement of the cooling device 3 are not particularly limited as long as the inside of the storage chamber 20 can be cooled.

Further, the electric field forming device 5 has a function of forming an electric field in the storage chamber 20 and causing the formed electric field to act on the object contained in the storage chamber 20. In this way, by applying an electric field to the object, the freshness of the object can be maintained for a longer period of time. As shown in FIG. 2, such an electric field forming device 5 includes a plurality of electrodes 6 provided in a storage chamber 20 and a voltage application device 7 that applies a driving voltage to the plurality of electrodes 6.

The plurality of electrodes 6 are each provided on the ceiling surface 201 of the storage chamber 20. By providing each electrode 6 on the ceiling surface 201, a wide object storage space 200 formed between the floor surface 202 and the electrodes 6 can be secured. Furthermore, when carrying objects into the storage chamber 20 or carrying them out of the storage chamber 20 using a forklift or the like, the electrodes 6 are less likely to get in the way, making it possible to carry in and out safely and smoothly. can. However, the arrangement of the electrode 6 is not particularly limited, and for example, it may be provided on the side surface (on one side or both sides) of the storage chamber 20, or may be provided on the floor surface 202.

The voltage application device 7 includes, for example, a high voltage transformer, and applies an alternating voltage for forming an electric field to each electrode 6. In this way, when the voltage application device 7 applies an alternating voltage to each electrode 6, an electric field is formed in the storage chamber 20 based on the potential difference between the electrode 6 and the container body 2 connected to the ground. By applying this electric field to the object housed in the storage chamber 20, ripening can be promoted while maintaining the freshness of the object. Therefore, compared to the case where no electric field is formed, the food object can be preserved for a longer period of time, and the flavor of the object can be amplified.

Note that the configuration of the electric field forming device 5 is not particularly limited as long as it can form an electric field within the storage chamber 20. For example, the number of electrodes 6 may be one instead of a plurality. Further, the same alternating voltage may be applied to a plurality of electrodes 6 as in this embodiment, or the first alternating voltage may be applied to a certain electrode, and the first alternating voltage may have a different frequency or frequency. A second alternating voltage having a different amplitude may be applied. Further, the electric field forming device 5 may be omitted.

Further, as shown in FIG. 2, an internal temperature sensor 41 is provided in the storage chamber 20 to detect the temperature inside the storage chamber 20, preferably the temperature of the object stored in the storage chamber 20. The internal temperature sensor 41 is not particularly limited as long as it can detect the temperature inside the accommodation chamber 20, preferably the temperature of the object accommodated in the accommodation chamber 20, and includes, for example, a thermocouple such as a thermopile, a thermistor, and an infrared ray. A sensor etc. can be used. Although one internal temperature sensor 41 is provided in the storage chamber 20 in this embodiment, the number and arrangement of the internal temperature sensors 41 are not particularly limited. For example, a plurality of internal temperature sensors 41 may be provided scattered throughout the storage chamber 20.

Furthermore, an internal humidity sensor 42 is provided within the storage chamber 20 to detect the humidity within the storage chamber 20 . The internal humidity sensor 42 is not particularly limited as long as it can detect the humidity within the storage chamber 20, and for example, a polymer resistance type humidity sensor or a polymer capacitance type humidity sensor can be used. Although one internal humidity sensor 42 is provided in the storage chamber 20 in this embodiment, the number and arrangement of the internal humidity sensors 42 are not particularly limited. For example, a plurality of internal humidity sensors 42 may be provided scattered throughout the storage chamber 20. Alternatively, a temperature/humidity sensor in which the internal humidity sensor 42 and the internal temperature sensor 41 are integrated may be used.

On the other hand, an external temperature sensor 43 is provided outside the storage chamber 20 to detect the outside temperature of the container 1. The external temperature sensor 43 is not particularly limited as long as it can detect the outside temperature of the container 1, and for example, similar to the internal temperature sensor 41, a thermocouple such as a thermopile, a thermistor, an infrared sensor, etc. can be used. . In this embodiment, one external temperature sensor 43 is provided on the outer wall of the container body 2, but the number and arrangement of the external temperature sensors 43 are not particularly limited. For example, a plurality of external temperature sensors 43 may be provided scattered over the entire outer wall of the container body 2.

Further, an external humidity sensor 44 for detecting the external humidity of the container 1 is provided outside the storage chamber 20. The external humidity sensor 44 is not particularly limited as long as it can detect the external humidity of the container 1, and for example, similar to the internal humidity sensor 42, a polymer resistance type or polymer capacitance type humidity sensor may be used. be able to. In this embodiment, one external humidity sensor 44 is provided on the outer wall of the container body 2, but the number and arrangement of the external humidity sensors 44 are not particularly limited. For example, a plurality of external humidity sensors 44 may be provided scattered over the entire outer wall of the container body 2.

Furthermore, an external atmospheric pressure sensor 45 is provided outside the storage chamber 20 to detect the external atmospheric pressure of the container 1 . The external atmospheric pressure sensor 45 is not particularly limited as long as it can detect the external atmospheric pressure of the container 1, and for example, an atmospheric pressure sensor using piezoresistive type or capacitive type Si semiconductor MEMS can be used. In this embodiment, one external pressure sensor 45 is provided on the outer wall of the container body 2, but the number and arrangement of the external pressure sensors 45 are not particularly limited. For example, a plurality of external pressure sensors 45 may be provided scattered over the entire outer wall of the container body 2.

The control device 9 controls the driving of the cooling device 3 based on the detection results of various sensors. As shown in FIG. 3, such a control device 9 includes a receiving section 91 that receives the start (implementation) of tempering temperature control in the storage chamber 20, and a controller 92 that controls the driving of the cooling device 3. The control device 9 is, for example, a computer equipped with a processor (CPU), a main memory, and an auxiliary storage device such as an HDD or SSD, and a program stored in the auxiliary storage device is read out to the main memory. A predetermined function is realized by performing arithmetic processing with a processor.

The controller 92 controls the drive of the cooling device 3 in the normal temperature control mode (first drive control mode) when the reception unit 91 does not accept the start of tempering temperature control. Specifically, the controller 92 controls the driving of the cooling device 3 based on the detection results of the internal temperature sensor 41 and the internal humidity sensor 42 so that the temperature and humidity within the storage chamber 20 are maintained at the set values. . Thereby, the object can be stored in an appropriate environment, and the freshness of the object can be effectively maintained for a long period of time.

If the cooled object is carried out of the container 1 as it is, the air outside the container 1 will be cooled by the object, causing dew condensation on the object, and there is a risk that the object will be damaged by the condensation. Therefore, when the reception unit 91 receives the start of tempering temperature control, the controller 92 controls the drive of the cooling device 3 in a tempering temperature control mode (second drive control mode) different from the normal mode. Specifically, the controller 92 controls the cooling device 3 so that the difference ΔT between the temperature T1 inside the storage chamber 20 and the ambient environment temperature of the container 1, that is, the outside air temperature T2 is a difference that does not cause dew condensation on the object. The temperature T1 inside the storage chamber 20 is gradually increased by controlling the drive of the storage chamber 20. Then, by carrying the object out of the container 1 after the difference ΔT has reached such a level that no condensation occurs on the object, that is, after the tempering temperature control is finished, the occurrence of dew condensation on the object is suppressed, and the condensation is It is possible to suppress damage to the object due to Note that "temperature T1 in the storage chamber 20" preferably refers to the temperature of the object stored in the storage chamber 20.

Hereinafter, such a control device 9 will be explained in detail. As described above, the receiving unit 91 receives a request to start tempering temperature control from the administrator. The reception method is not particularly limited, and for example, it may be accepted via various input devices such as buttons, mouse, keyboard, touch panel, etc. installed in the container 1, or it may be accepted from a remote management PC via a network such as the Internet. You may also accept it. Further, the reception unit 91 can receive information regarding the objects stored in the storage chamber 20, for example, information regarding the type of objects, the loading amount, etc., from the administrator. Note that the information regarding the object is not received through input from the administrator, but is determined by the control device 9 itself using, for example, a camera installed in the storage room 20 and image recognition technology using this camera. The configuration may be such that the information is acquired.

The method of receiving information regarding the type of object from the administrator is not particularly limited; for example, various fresh foods can be collected from their edible parts to leafy vegetables (cabbage, komatsuna, celery, onion, chive, green onion, Chinese cabbage, spinach, lettuce, etc.). ), fruit vegetables (strawberries, edamame, peas, okra, pumpkin, cucumber, watermelon, corn, tomatoes, eggplants, green peppers, melons, etc.), root vegetables (turnips, burdock, sweet potatoes, taro, potatoes, ginger, radish, carrots, etc.) ) and accept one or more of these three categories. We also offer various fresh foods depending on their size, from large (cabbage, lettuce, Chinese cabbage, pumpkin, melon, watermelon, radish, corn, etc.) to medium (cucumber, tomato, eggplant, green pepper, burdock, sweet potato, taro, potato, etc.). etc.), small volume (edamame, pea, okra, strawberry, ginger, etc.) and accept one or more of these three categories. Alternatively, various fresh foods may be classified into high moisture, medium moisture, and low moisture based on their moisture content, and one or more of these three categories may be accepted. Of course, cabbage, Komatsuna, celery, onion, chive, green onion, Chinese cabbage, spinach, lettuce, strawberry, edamame, pea, okra, pumpkin, cucumber, watermelon, corn, tomato, eggplant, green pepper, melon, turnip, burdock, sweet potato, The type of object may be accepted in detail, such as taro, potato, ginger, radish, carrot, etc.

When the reception unit 91 receives the start of tempering temperature control, the controller 92 controls the driving of the cooling device 3 in the tempering temperature control mode. Specifically, the controller 92 determines the difference ΔT between the temperature T1 inside the accommodation chamber 20 and the outside temperature T2 based on the detection results of the internal temperature sensor 41, the external temperature sensor 43, the external humidity sensor 44, and the external atmospheric pressure sensor 45. The temperature T1 in the storage chamber 20 is gradually increased so that the difference is such that no condensation occurs on the object.

Here, the mechanism of dew condensation will be briefly explained based on the graph shown in FIG. In the graph shown in Figure 4, the horizontal axis is the temperature of the air, the vertical axis is the amount of water vapor contained in the air, and the saturated water vapor amount curve L (relative humidity 100%) is plotted of the saturated water vapor amount at each temperature at 1 atm. is written. The graph shows that when the air in the region Q1 located on the right side of the saturated water vapor amount curve L is cooled beyond the saturated water vapor amount curve L to the region Q2 located on the left side of the saturated water vapor amount curve L, This indicates that the amount of water vapor in the air exceeds the saturated amount of water vapor, and the water vapor in the air becomes water droplets and condensation occurs. Note that the saturated water vapor amount has characteristics that depend on atmospheric pressure as well as temperature, and decreases as the atmospheric pressure increases and increases as the atmospheric pressure decreases.

Based on the dew condensation mechanism described above, the controller 92 controls the air in the environment where the container 1 is placed (hereinafter also referred to as "outside air") to be cooled by the object when the object is removed from the container 1. The temperature T1 of the storage chamber 20 at the time of carrying out the object is controlled so that the amount of water vapor contained in the outside air exceeds the saturated amount of water vapor and dew condensation does not occur on the object.

To give an example of the tempering temperature control mode, when the reception unit 91 accepts the start of tempering temperature control, the controller 92 controls the outside air temperature, humidity, and Get a signal about atmospheric pressure. As a result, when the temperature, humidity, and atmospheric pressure of the outside air are 20℃/60%/1 atm, respectively, as can be seen from the graph shown in Figure 4, if the outside air cools down to 12℃ or less, condensation will form on the object. occurs.

Therefore, if the current temperature T1 is a temperature that may cause the outside air to cool down to 12°C or lower and enter the region Q2, the controller 92 sets the temperature T1 at which the outside air is not cooled to 12°C or lower to the target temperature Tm (for example, By setting Tm=12° C.) and controlling the drive of the cooling device 3, the temperature T1 in the storage chamber 20 is raised to the target temperature Tm. Thereby, when the object is carried out from the container 1, it is possible to effectively suppress the occurrence of dew condensation on the object due to the outside air being cooled by the object. Note that the target temperature Tm is preferably as low as possible unless dew condensation occurs on the object. That is, in the case of the above example, it is preferable that Tm=12°C. Thereby, excessive temperature rise of the object within the storage chamber 20 is suppressed, and deterioration of freshness of the object can be effectively suppressed.

It is preferable that the controller 92 raises the temperature T1 in the storage chamber 20 to the target temperature Tm over a necessary and sufficient period of time. Thereby, it is possible to suppress a discrepancy between the temperature of the air in the storage chamber 20 and the temperature of the object itself stored in the storage chamber 20. The "necessary and sufficient time" varies depending on the type of object, the amount of object loaded, etc., but is preferably 10 minutes to 120 minutes, more preferably 30 minutes to 60 minutes. . If the temperature T1 in the storage chamber 20 is suddenly raised to the target temperature Tm, the temperature increase of the object itself cannot catch up with the temperature rise of the air in the storage chamber 20, and a temperature difference occurs between them. If the temperature difference becomes too large, there is a risk that dew condensation will occur on the object within the storage chamber 20, similar to the mechanism described above. On the other hand, if the temperature T1 in the storage chamber 20 is raised to the target temperature Tm more slowly than necessary, the object will be exposed to the heated air for a long time, and there is a risk that the object will be damaged.

As described above, the method for raising the temperature T1 in the storage chamber 20 to the target temperature Tm is not particularly limited as long as dew condensation on the object in the storage chamber 20 can be suppressed, and for example, the method shown in FIG. As shown by A, the temperature T1 may be raised stepwise to the target temperature Tm, or as shown by B, the temperature T1 may be raised continuously to the target temperature Tm.

Here, the process of raising the temperature T1 inside the storage chamber 20 to the target temperature Tm, specifically, the time taken to raise the temperature T1 inside the storage chamber 20 to the target temperature Tm, the method of raising the temperature, etc. , differs depending on the type of object. Therefore, the control device 9 has a plurality of tempering control modes. For example, in the present embodiment, as shown in FIG. Based on the information obtained by the control device 9 using a camera or the like, one of the nine types of tempering control modes is selected, and the tempering temperature is controlled using the selected mode. . By selecting one optimal mode from a plurality of tempering control modes in this manner, tempering temperature control can be performed more accurately and effectively. Therefore, damage to the object during tempering temperature control can be effectively suppressed.

The container 1 has been described above. As described above, the container 1 (storage) includes a container body 2 (storage main body) having a storage chamber 20 that can accommodate objects, a cooling device 3 that cools the inside of the storage chamber 20, and a cooling device 3 that cools the inside of the storage chamber 20. It has an internal temperature sensor 41 that detects the temperature of the container body 2, an external temperature sensor 43 that detects the temperature outside the container body 2, and a control device 9 that controls the driving of the cooling device 3. The control device 9 operates in a normal temperature control mode (first drive control mode) in which the drive of the cooling device 3 is controlled based on the detection results of the internal temperature sensor 41 and the detection results of the internal temperature sensor 41 and the external temperature sensor 43. Based on the difference ΔT between the temperature T1 inside the storage chamber 20 and the outside temperature T2, which is the temperature outside the container body 2, it is determined that when the object is transported from the inside of the storage chamber 20 to the outside of the container body 2, condensation will occur on the object. It has a tempering temperature control mode (second drive control mode) in which the drive of the cooling device 3 is controlled so that no temperature difference occurs. The above-mentioned "temperature difference that does not cause dew condensation on the object" means a temperature difference that does not cause the amount of water vapor contained in the outside air to exceed the saturated amount of water vapor even if the outside air around the object is cooled. .

According to the container 1 having such a configuration, the object can be stably cooled by using the normal temperature control mode. Moreover, by using the tempering temperature control mode, dew condensation on the object when the object is carried out of the container main body 2 can be suppressed, and damage to the object due to dew condensation can be effectively suppressed. Therefore, according to such a container 1, the freshness of the object can be effectively maintained not only when it is stored in the storage chamber 20 but also when it is transported out of the container body 2.

Further, as described above, the tempering temperature control mode has a plurality of modes, and the control device 9 selects one mode from the plurality of modes based on information regarding the object. By selecting one optimal mode from a plurality of modes in this manner, tempering temperature control can be performed more accurately and effectively. Therefore, damage to the object during tempering temperature control can be effectively suppressed.

Further, as described above, the control device 9 includes a reception unit 91 that receives the start (implementation) of the tempering temperature control mode, and when the reception unit 91 receives the start of the tempering temperature control mode, the control device 9 enters the tempering temperature control mode. The drive control of the cooling device 3 is performed using the following. That is, if the reception unit 91 does not accept the start of the tempering temperature control mode, the control device 9 does not perform drive control of the cooling device 3 using the tempering temperature control mode. For example, if the outside air temperature T2 is sufficiently low and the difference ΔT is small enough that dew condensation does not occur on the object even if the tempering temperature control is not performed, there is no need to take the trouble to perform the tempering temperature control. Further, depending on the type of object and the purpose of use, there may be cases where it is not necessary to perform tempering temperature control. Therefore, by providing a reception section 91 and making it possible to select whether or not to perform tempering temperature control according to the environment in which the container 1 is placed, the type of object, the purpose of use, etc., unnecessary tempering temperature control can be avoided. implementation can be avoided. Therefore, for example, delays in unloading time due to tempering temperature control can be suppressed.

Further, as described above, the container 1 includes an internal humidity sensor 42 that detects the humidity inside the storage chamber 20 and an external humidity sensor 44 that detects the humidity outside the container body 2. Since the difference ΔT that can cause dew condensation also depends on the humidity, it can be detected more effectively by detecting the humidity inside the storage chamber 20 and the humidity outside the container body 2 using the internal humidity sensor 42 and the external humidity sensor 44. Condensation on the object can be suppressed.

Further, as described above, the container 1 includes an external atmospheric pressure sensor 45 that detects the atmospheric pressure outside the container body 2. Since the difference ΔT that can cause dew condensation also depends on the atmospheric pressure, by detecting the atmospheric pressure outside the container main body 2 using the external atmospheric pressure sensor 45, dew condensation on the object can be more effectively suppressed.

Further, as described above, the container 1 includes the electric field forming device 5 that forms an electric field within the storage chamber 20. By applying an electric field to an object (particularly fresh food), the freshness of the object can be maintained for a longer period of time.

<Second embodiment>
In the container 1 of this embodiment, the reception unit 91 can receive the timing to start tempering temperature control. In other words, the administrator can not only decide whether or not to implement tempering temperature control, but also set the start timing if tempering temperature control is to be performed. Therefore, for example, by setting the start timing of tempering temperature control in anticipation of the time when the object is to be carried out from the container 1, it is possible to complete the tempering temperature control by the time the object is to be carried out. Become. Therefore, it is possible to suppress a delay in the start time of carrying out the object due to tempering temperature control.

The start timing may be, for example, "July 28, 2019, 3:15 p.m." or the elapsed time from the reference time, such as "12 hours from now." You may accept it. In addition, the reception unit 91 receives the scheduled time to start carrying out the object from the container 1 as the start timing, and calculates the time to start the tempering temperature control based on that time and the time required for the tempering temperature control mode. It's okay.

When the reception unit 91 has accepted the start timing of tempering temperature control, the controller 92 controls the driving of the cooling device 3 in the normal temperature control mode until the start timing comes. This allows the object to be stored in an appropriate environment. On the other hand, the controller 92 controls the driving of the cooling device 3 in the tempering temperature control mode as soon as the start timing is reached. Thereby, it becomes possible to complete the tempering temperature control in time for the time to take out the object, and it is possible to suppress a delay in the time to start taking out the object.

As described above, the reception unit 91 of the present embodiment receives the timing to start drive control of the cooling device 3 using the tempering temperature control mode, and the control device 9 controls the tempering temperature at the timing received by the reception unit 91. Drive control of the cooling device 3 using the mode is started. Thereby, for example, it becomes possible to complete the tempering temperature control in time for the time when the object is to be taken out, and it is possible to suppress a delay in the time when the object is to be taken out.

Here, the container 1 is a mobile container. Therefore, at the start time of tempering temperature control, the container 1 is in transit and may not have arrived at the point where the object is to be carried out (the destination point for transporting the container 1). In such a case, there is a possibility that the weather conditions such as the outside temperature T2, the outside air humidity, and the atmospheric pressure may change moment by moment until the container 1 reaches the destination point. Therefore, the controller 92 periodically or irregularly controls the temperature, humidity, and atmospheric pressure of the outside air detected by the external temperature sensor 43, external humidity sensor 44, and external atmospheric pressure sensor 45, for example, at intervals of 1 minute to 10 minutes. It is preferable to acquire a signal related to the cooling device 3 and control the drive of the cooling device 3 based on the acquired latest situation. This makes it possible to respond to changes in weather conditions and to control the tempering temperature with greater precision.

Alternatively, for example, the reception unit 91 may receive information regarding the weather conditions (temperature, humidity, atmospheric pressure) at the destination point for transporting the container 1 by omitting or not using the external temperature sensor 43, external humidity sensor 44, and external pressure sensor 45. It may be configured to accept the request. According to such a configuration, tempering temperature control can be started according to the weather conditions at the destination point where the container 1 is to be transported, so tempering temperature control can be performed more accurately without being affected by the weather conditions at the current location. be able to.

In addition, as a method for acquiring the weather conditions at the transportation destination point of container 1, for example, in addition to receiving information from the administrator, receiving only information on the transportation destination point of container 1 from the administrator, and based on that information, communication The local weather conditions may be acquired from a possible external weather condition providing service. In addition, since weather conditions change from moment to moment, the acquisition of local weather conditions is not limited to one time, but may be performed multiple times on a regular or irregular basis.If acquired multiple times, the latest weather conditions can be obtained. Tempering temperature control may be performed based on this.

<Third embodiment>
In the container 1 of this embodiment, the reception unit 91 can receive position information for starting tempering temperature control. In other words, the administrator can not only decide whether or not to implement tempering temperature control, but also set the position at which tempering temperature control is to be started if tempering temperature control is to be performed. Therefore, for example, by setting the position to start tempering temperature control in anticipation of the time when the container 1 being transported arrives at the transport destination, the tempering temperature control can be controlled by the time the container 1 arrives at the transport destination. It is also possible to complete the process. Therefore, it is possible to suppress a delay in the start time of carrying out the object due to tempering temperature control.

Note that the location information may be received as coordinates indicated by latitude/longitude, or as an address, for example. Further, the reception unit 91 receives the transport destination point of the container 1, and calculates the position at which to start tempering temperature control based on the point, the moving speed of the container 1, the time required for the tempering temperature control mode, etc. Good too.

When the reception unit 91 has received position information for starting tempering temperature control, the controller 92 controls driving of the cooling device 3 in the normal temperature control mode until the container 1 reaches the start position. This allows the object to be stored in an appropriate environment. On the other hand, the controller 92 controls the driving of the cooling device 3 in the tempering temperature control mode immediately after the container 1 reaches the starting position. Thereby, it is possible to complete the tempering temperature control in time for the container 1 to arrive at the transportation destination point, and it is possible to suppress a delay in the start time of carrying out the object.

As described above, the reception unit 91 of the present embodiment receives position information for starting drive control of the cooling device 3 using the tempering temperature control mode, and the control device 9 responds to the position information received by the reception unit 91. After the container 1 reaches the position where the tempering temperature control mode is used, drive control of the cooling device 3 using the tempering temperature control mode is started. Thereby, for example, it is possible to complete the tempering temperature control in time for the arrival of the container 1 at the transportation destination point, and it is possible to suppress a delay in the scheduled time for carrying out the object.

Similarly to the second embodiment described above, when starting drive control of the cooling device 3 in the tempering temperature control mode, the container 1 is in transit and has not yet arrived at the destination destination. Therefore, there is a possibility that the weather conditions may change moment by moment until the container 1 reaches the destination point. Therefore, the controller 92 periodically or irregularly controls the temperature, humidity, and atmospheric pressure of the outside air detected by the external temperature sensor 43, external humidity sensor 44, and external atmospheric pressure sensor 45, for example, at intervals of 1 minute to 10 minutes. It is preferable to acquire a signal related to the cooling device 3 and control the drive of the cooling device 3 based on the acquired latest situation. This makes it possible to respond to changes in weather conditions and to control the tempering temperature with greater precision.

Further, for example, a configuration may be adopted in which the reception unit 91 receives information regarding the weather conditions at the transportation destination point of the container 1, without using or omitting the external temperature sensor 43, the external humidity sensor 44, and the external atmospheric pressure sensor 45. According to such a configuration, tempering temperature control can be started according to the weather conditions at the destination point where the container 1 is to be transported, so tempering temperature control can be performed more accurately without being affected by the weather conditions at the current location. be able to.

In addition, as a method for acquiring the weather conditions at the transportation destination point of the container 1, for example, a method is received from the administrator, a method is received from the administrator only information about the transportation destination point of the container 1, and based on that information, a method is used to obtain the weather conditions at the transportation destination point of the container 1. Local weather conditions may be acquired from an external weather condition providing service. In addition, since weather conditions change from moment to moment, the acquisition of local weather conditions is not limited to one time, but may be performed multiple times on a regular or irregular basis.If acquired multiple times, the latest weather conditions can be obtained. Tempering temperature control may be performed based on this.

Although the storage of the present invention has been described above based on the illustrated embodiment, the present invention is not limited thereto. For example, the configuration of each part can be replaced with any configuration that performs the same function, or any configuration can be added.

1 Container 2 Container body 20 Storage chamber 200 Storage space 201 Ceiling surface 202 Floor surface 21 Door 22 Door 24 Groove 3 Cooling device 31 Suction section 32 Cooling device 33 Air outlet section 41 Internal temperature sensor 42 Internal humidity sensor 43 External temperature sensor 44 External humidity Sensor 45 External pressure sensor 5 Electric field forming device 6 Electrode 7 Voltage application device 9 Control device 91 Reception section 92 Controller L Saturated water vapor amount curve Q1 Region Q2 Region T1 Temperature T2 Outside temperature Tm Target temperature

Claims (5)

A storage main body having a storage chamber capable of storing the object;
a cooling device that cools the interior of the storage chamber;
an internal temperature sensor that detects the temperature inside the containment chamber;
an external temperature sensor that detects the temperature outside the storage main body;
a control device that controls driving of the cooling device;
As a drive control mode of the cooling device, the control device:
a first drive control mode that controls the drive of the cooling device based on the detection result of the internal temperature sensor;
Based on the detection results of the internal temperature sensor and the external temperature sensor, the difference between the temperature inside the storage chamber and the temperature outside the storage main body is determined when the object is carried out from the storage chamber to the outside of the storage main body. a second drive control mode that controls the drive of the cooling device so that the temperature difference is such that no dew condensation occurs on the object ;
The control device further includes a reception unit that receives position information for starting drive control of the cooling device using the second drive control mode, and the control device further includes a reception unit that receives position information for starting drive control of the cooling device using the second drive control mode, and the control device A storage warehouse characterized in that drive control of the cooling device using the second drive control mode is started after the storage main body arrives . The second drive control mode has a plurality of modes,
The storage according to claim 1, wherein the control device selects one mode from the plurality of modes based on information regarding the object. an internal humidity sensor that detects humidity within the containment chamber;
The housing according to claim 1 or 2 , further comprising an external humidity sensor that detects humidity outside the housing main body. The storage according to any one of claims 1 to 3 , further comprising an external atmospheric pressure sensor that detects the atmospheric pressure outside the storage main body. The housing according to any one of claims 1 to 4, further comprising an electric field forming device that forms an electric field within the housing chamber.

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