JPH0696347A - Automatic vending machine utilizing midnight electric power - Google Patents

Abstract

PURPOSE:To reduce the powder consumption of the automatic vending machine in a daytime band wherein the electric power demands increase by stopping driving a cooling device in a time band set in a time band setting means and holding the temperature in a box within a specific temperature range with energy accumulated in a cold regenerator and in articles in the box. CONSTITUTION:Driving control over a cooling device 11, a heating device 12, and circulation fans 13a and 13b and opening/closing control over the damper 31a of a cold regenerator and a heat regenerator are performed so as to utilize electric power in a midnight electric power time band wherein electric power demands are small and reduce the power consumption in a time band wherein electric power demands are large, thus performing temperature control so that the cooling box and the heating box are held at specific temperatures. Further, the operation rates of the cooling device 11 and heating device 12 to the outside temperature are set in the program of a temperature control part 19 as an operation control table which is previously found by experiment. Consequently, the energy for maintaining the temperature in the box is accumulated in the midnight time band wherein the demands are small.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vending machine using late-night power.

[0002]

2. Description of the Related Art Conventionally, in an automatic vending machine for cooling or heating stored products for sale, the temperature inside the refrigerator is detected by a temperature detector such as a thermostat, and the detected temperature and a reference refrigerator preset. The inside temperature is compared, and the cooling device or the heating device is operated based on the comparison result to cool or warm the inside of the refrigerator. In addition, an air blower that circulates the air inside the refrigerator is provided, and the fan is always driven to keep the temperature inside the refrigerator uniform.

[0003]

In recent years, the standard of consumer life has risen, and vending machines have been installed in various places so that consumers can purchase their favorite products at any time and any place. In addition, soft drinks in cans are cooled or heated in the vending machine as described above, and are sold at an appropriate temperature preferred by consumers. Further, since many vending machines are installed outdoors, the power consumption of the vending machines also increases, and the total power consumption of the vending machines is said to be equivalent to one nuclear power plant.

For this reason, the demand for electric power is increasing year by year, and particularly in summer, the power consumption amount is the maximum power supply amount during the period when almost all air conditioners and cooling devices such as homes, offices and department stores are operated. May exceed
At this time, some areas were also subject to power outages.

In view of the above problems, it is an object of the present invention to provide a vending machine for late-night power use that reduces the power consumption during a time period when the power demand is high.

[0006]

According to the present invention, in order to achieve the above object, in the first aspect of the present invention, the cooling device is driven so that the internal cold storage temperature becomes a preset standard internal cold storage temperature. In a late-night power vending machine that controls temperature and cools the products stored in the refrigerator using late-night power, set a cold storage material placed at a predetermined position in the refrigerator and a time zone with high power demand The present invention proposes a late-night power use vending machine which is provided with a time zone setting means and which is provided with temperature control means for stopping the driving of the cooling device during the time zone set in the time zone setting means.

Further, according to a second aspect of the present invention, the heating device is driven to control the temperature inside the storage so that the internal storage temperature becomes a preset reference internal storage temperature, and the storage is stored in the storage by using midnight power. In a vending machine using electricity at midnight that heats the stored products, a heat storage material arranged at a predetermined position in the refrigerator and a time zone setting means for setting a time zone with a large power demand are provided,
In the time zone set by the time zone setting means, there is proposed a late-night power use vending machine provided with a temperature control means for stopping the driving of the heating device.

According to a third aspect of the present invention, in the vending machine using the midnight power according to the first or second aspect, the outside air temperature detecting means for detecting the outside air temperature and the operating rate of the cooling device or the heating device with respect to the outside air temperature are set in advance. With the set operation control table, the temperature control means, at least in the time zone from the end of the time zone set in the time zone setting means to the midnight power time zone, based on the operation control table, A vending machine that uses the late-night power to drive the cooling device or the heating device is proposed.

According to a fourth aspect of the present invention, in the late-night electric power vending machine according to the first or third aspect, a partition wall having a communication port that can be opened and closed by a damper is provided between the bottom of the refrigerator and the top of the refrigerator. An auxiliary cooler, a cool storage material, and a blower are arranged below the partition wall to form a cool storage unit, and the temperature control means opens the damper at least during the time zone set by the time zone setting means. At the same time, the midnight power vending machine that drives the auxiliary cooler in the midnight power time zone and stops driving the auxiliary cooler in the time zone set in the time zone setting means to drive the blower. To propose.

According to a fifth aspect of the present invention, in the late-night electric power vending machine according to the second or third aspect, a partition wall having a communication opening that can be opened and closed by a damper is provided between the bottom of the inside of the refrigerator and the top of the inside of the refrigerator. An auxiliary heater, a heat storage material, and a blower are arranged below the partition wall to form a heat storage unit, and the temperature control means opens the damper at least during the time zone set by the time zone setting means. At the same time, the midnight power vending machine that drives the auxiliary heater in the midnight power time zone and stops the driving of the auxiliary heater in the time zone set in the time zone setting means to drive the blower. To propose.

According to a sixth aspect of the present invention, in the late-night electric power vending machine according to the second or third aspect, an auxiliary heater, a heat storage material, and a blower are arranged in an upper part of the refrigerator, and the temperature control means is used for the midnight electric power. A midnight power vending machine is proposed which drives the auxiliary heater in a time zone and stops driving the auxiliary heater in the time zone set by the time zone setting means to drive the blower.

According to a seventh aspect of the present invention, in the vending machine using the midnight power of the fourth aspect, the cooling device is an evaporator,
It comprises a cooling circuit including a condenser and a compressor, and the auxiliary cooling device is constituted by a second evaporator connected in series to the evaporator of the cooling device, and the evaporator and the second cooling device are connected. A four-way valve that reverses the refrigerant flow path to the evaporator is provided, and the temperature control means is configured to allow the refrigerant to flow from the second evaporator toward the evaporator at least during the midnight power time period. We propose a vending machine that uses midnight power that switches the directional valve.

Further, in the eighth aspect of the present invention, in the late-night power vending machine according to the fourth aspect, a plurality of product storages partitioned by heat insulating walls are commonly used. One cold storage unit, a plurality of communication passages for communicating the cold storage unit with each of the product storages, a plurality of dampers arranged in each of the communication passages, and a plurality of temperatures for detecting the temperature in each product storage With a detector,
The temperature control means opens and closes the damper based on the temperature detected by the temperature detector in at least the time zone set in the time zone setting means, and drives the auxiliary cooler in the midnight power time zone, A midnight electric power vending machine is proposed in which the driving of the auxiliary cooler is stopped and the blower is driven in the time zone set by the time zone setting means.

In the ninth aspect of the present invention, in the vending machine using electric power of nighttime according to the fifth aspect, a plurality of product storages partitioned by heat insulating walls and a plurality of product storages are commonly used. One heat storage unit, a plurality of communication passages that communicate the heat storage unit and each of the product storages, a plurality of dampers arranged in each of the communication passages, and a plurality of temperatures for detecting the temperature in each product storage With a detector,
The temperature control means opens and closes the damper based on the temperature detected by the temperature detector in at least the time zone set in the time zone setting means, and drives the auxiliary heater in the midnight power time zone, A midnight power use vending machine is proposed in which the driving of the auxiliary heater is stopped and the blower is driven in the time zone set by the time zone setting means.

Further, according to a tenth aspect of the present invention, there is provided temperature control means for controlling the temperature inside the refrigerator by driving the cooling device so that the temperature inside the refrigerator becomes the reference temperature inside the refrigerator which is set in advance. In a late-night power vending machine that cools goods stored in the refrigerator, a cold storage material arranged in an upper portion of the refrigerator, a cooling device for cooling the cold storage material and the refrigerator, and circulating air in the refrigerator. It is proposed that the temperature control means drives the cooling device and the blower only in the midnight power time zone, while providing the blower.

In the eleventh aspect of the present invention, there is provided temperature control means for controlling the temperature inside the refrigerator by driving the heating device so that the temperature inside the refrigerator becomes a preset reference temperature inside the refrigerator. In a vending machine using electric power stored at midnight for heating products stored in the storage, a heat storage material arranged at a lower portion of the storage, a heating device for heating the heat storage material and the storage, and circulating air in the storage. It proposes an automatic power supply vending machine using the midnight power, in which the temperature control means drives the heating device and the air blower only in the midnight power time zone.

According to the twelfth aspect of the present invention, there is provided temperature control means for controlling the temperature inside the refrigerator by driving the cooling device so that the temperature inside the refrigerator becomes a preset reference temperature inside the refrigerator. In a late-night power vending machine that cools goods stored in the refrigerator, a cold storage material arranged in an upper portion of the refrigerator, a cooling device for cooling the cold storage material and the refrigerator, and circulating air in the refrigerator. And a time setting means for setting the time when the maximum temperature of the day is reached, the temperature control means drives the cooling device only in the midnight power time zone, and the midnight power time zone and A midnight power use vending machine that drives the blower at a predetermined time before the time when the maximum temperature is reached is proposed.

Further, in the thirteenth aspect of the present invention, in the vending machine using midnight power according to the twelfth aspect, the temperature control means determines the air flow rate in a predetermined time before the time when the maximum temperature is reached in the midnight power time zone. We propose a vending machine that uses the late-night power to drive the blower by setting it lower than the blow rate.

Further, in claim 14, claims 10, 1 are provided.
In the vending machine using the midnight power according to 1, 12, or 13, a storage battery, a charging unit that charges the storage battery during the midnight power time period, and a product unloading unit from the storage battery during a time period other than the midnight power time period. A late-night power vending machine provided with a power supply means for supplying power to each of the constituent parts is proposed.

[0020]

According to the first aspect of the present invention, the time zone in which the power demand is high is set in the time zone setting means, and the cooling device is driven mainly by the temperature control means in the midnight power time zone to cool the cold storage material and the inside of the warehouse. Is cooled, the drive of the cooling device is stopped in the time zone set by the time zone setting means, and the temperature inside the refrigerator is within a predetermined temperature range by the energy stored in the cold storage material and the commodity in the refrigerator. Maintained at.

According to the second aspect of the invention, the time zone in which the power demand is high is set in the time zone setting means, and the heating device is driven mainly by the temperature control means in the midnight power time zone so that the heat storage material and the inside of the warehouse The product is heated, the driving of the heating device is stopped in the time zone set by the time zone setting means, and the temperature inside the refrigerator is within a predetermined temperature range due to the energy stored in the heat storage material and the commodity in the refrigerator. Maintained at.

According to the third aspect, the outside air temperature is detected by the outside air temperature detecting means, and an operation control table in which the operating rate of the cooling device or the heating device with respect to the outside air temperature is preset is provided. Further, by the temperature control means, at least in the time zone from the end of the time zone set in the time zone setting means to the midnight power time zone, the cooling device or the heating device is based on the operation control table. Be driven. As a result, it is possible to avoid a sudden increase in the operating rate of the cooling device or the heating device when replenishing products from the outside.

According to a fourth aspect of the present invention, a partition wall having a communication port that can be opened and closed by a damper is provided as a cold storage unit between a bottom portion inside the refrigerator and an upper portion inside the refrigerator, and auxiliary cooling is provided below the partition wall. A cooler, a cool storage material, and a blower are arranged. Further, by the temperature control means, the auxiliary cooler is driven in the midnight power time zone to cool the regenerator material, and the damper is opened at least in the time zone set by the time zone setting means. The drive of the auxiliary cooler is stopped and the blower is driven.
As a result, at the time of high power demand set by the time zone setting means, the temperature of the product immediately before sale located at least in the lower part of the inside of the cold storage falls within the predetermined temperature range due to the energy stored in the cold storage material. Maintained.

According to a fifth aspect of the present invention, a partition wall having a communication port that can be opened and closed by a damper is provided as a heat storage unit between a bottom portion inside the compartment and an upper portion inside the compartment, and auxiliary heating is provided below the partition wall. An air conditioner, a heat storage material, and a blower are arranged. Further, the temperature control means drives the auxiliary heater in the midnight power time zone to heat the heat storage material, and at least the damper is opened at least in the time zone set by the time zone setting means. The driving of the auxiliary heater is stopped and the blower is driven.
As a result, at the time of high power demand set by the time zone setting means, the temperature of the product immediately before sale located at least in the lower part of the inside of the store is kept within the predetermined temperature range by the energy stored in the heat storage material. Maintained.

According to a sixth aspect of the present invention, an auxiliary heater, a heat storage material, and a blower are arranged in the upper part of the inside of the refrigerator, and the temperature control means drives the auxiliary heater during the midnight power time period, and The driving of the auxiliary heater is stopped and the blower is driven in the time zone set by the zone setting means. As a result, the energy stored in the heat storage material during the midnight power time zone maintains the internal cold storage temperature within the predetermined temperature range during the time zone when the power demand is high, which is set by the time zone setting means.

Further, according to claim 7, the temperature control means causes the refrigerant to flow from the second evaporator constituting the auxiliary cooler toward the evaporator of the cooling device at least during the midnight power time period. The four-way valve is switched to do so. As a result, the cold storage material is mainly cooled during the midnight power time period, and the interior of the cold storage is cooled accordingly.

According to claim 8, the auxiliary cooling device is driven by the temperature control means during the midnight power time period, and the auxiliary cooling device is activated during the time period set by the time period setting means. Is stopped and the blower is driven. Further, the temperature detector detects the temperature inside each product storage, and based on the detected temperature, the opening and closing of each damper is controlled by the temperature control means at least during the time zone set by the time zone setting means. .

According to a ninth aspect, the auxiliary heater is driven by the temperature control means in the midnight power time zone, and the auxiliary heater is driven in the time zone set by the time zone setting means. Is stopped and the blower is driven. Further, the temperature detector detects the temperature inside each product storage, and based on the detected temperature, the opening and closing of each damper is controlled by the temperature control means at least during the time zone set by the time zone setting means. .

Further, according to the tenth aspect, the temperature control means drives the cooling device and the blower only during the midnight power time period, and cools the cold storage material and the stored commodities arranged in the refrigerator and the upper portion of the refrigerator. It Further, in a time period other than the midnight power time period, the energy stored in the cold storage material and the stored product maintains the internal cold storage temperature at a predetermined temperature within a predetermined allowable range. At this time, since the regenerator material is arranged in the upper part of the refrigerator, the cool air emitted from the regenerator reaches the bottom of the refrigerator by natural convection, and the in-compartment temperature is maintained at the predetermined temperature.

According to the eleventh aspect, the temperature control means drives the heating device and the air blower only during the midnight power time period, and heats the heat storage material and the stored goods arranged in the inside of the refrigerator and the lower portion of the refrigerator. It Further, in a time period other than the midnight power time period, the energy stored in the heat storage material and the stored product maintains the internal cold storage temperature at a predetermined temperature within a predetermined allowable range. At this time, since the heat storage material is arranged in the lower portion of the inside of the refrigerator, the hot air generated from the heat storage material reaches the upper portion of the inside of the refrigerator by natural convection, and the temperature inside the refrigerator is maintained at the predetermined temperature.

According to the twelfth aspect of the present invention, the temperature control means drives the blower during the midnight power time zone and drives the cooling device only during the midnight power time zone. The arranged regenerator material and stored commodities are cooled. Further, in a time period other than the midnight power time period, the energy stored in the cold storage material and the stored product maintains the internal cold storage temperature at a predetermined temperature within a predetermined allowable range. At this time, since the regenerator material is arranged in the upper part of the refrigerator, the cool air emitted from the regenerator reaches the bottom of the refrigerator by natural convection, and the in-compartment temperature is maintained at the predetermined temperature. Further, the time setting means sets the time when the maximum temperature of the day is reached, and the temperature control means drives the blower at a predetermined time before the time when the maximum temperature is reached. Thereby, a temperature difference occurs in each part in the refrigerator while the blower is stopped after the midnight power time period, but the temperature inside the refrigerator is made substantially uniform by the circulation of the air in the refrigerator by the blower, The temperature of each part in the refrigerator is maintained within the allowable range.

According to a thirteenth aspect of the present invention, the temperature control means sets the amount of air blown in a predetermined time before the time when the maximum temperature is reached to be lower than the amount of air blown in the midnight power time zone. Is driven. As a result, the amount of external air that flows into the inside of the store from the product outlet when the product is sold is reduced by the circulation of the inside air, and the rise in the inside temperature is suppressed.

Further, according to the fourteenth aspect, the storage means charges the storage battery in the midnight power time zone, and the power supply means removes the commodity discharge means from the storage battery in the time zone other than the midnight power time zone. Electric power is supplied to each of the components including the above.

[0034]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an external perspective view showing a first embodiment of the present invention. In the figure, 1 is an inner door 1a and an outer door 1b on the front surface.
A vending machine main body (hereinafter referred to as a main body) provided with a wall body 2 made of a heat insulating material, and a refrigerator 3 inside the wall body 2.
a, 3b and heating chambers 4a, 4b are provided, and these cooling chambers 3
The heat insulating wall 5 is provided between each of the heating chambers 4a, 4b.
It is partitioned by. That is, the internal temperatures of the cooling storages 3a and 3b and the heating storages 4a and 4b are maintained within the different temperature ranges.

A plurality of serpentine columns (hereinafter, referred to as columns) 6 are vertically extended in each of the cooling chambers 3a and 3b and the heating chambers 4a and 4b to form a product storage portion, for example, a can. Products such as soft drinks are stacked and stored. The products delivered from each column 6 are carried out to the product outlet 1c formed in the outer door 1b by the delivery shooter 7 having a large number of ventilation holes. Further, the inner door 1a is provided with a carry-out door 1d facing the product outlet 1c for preventing outside air inflow. Furthermore, the refrigerator 3
A machine room 8 is provided below a, 3b and heating chambers 4a, 4b, and a cooling device, a heating device, a control device, and the like, which will be described later, are installed therein.

2 is a side sectional view showing the inside of the refrigerating chambers 3a and 3b, FIG. 3 is a side sectional view showing the inside of the heating chambers 4a and 4b, and FIG. 4 is a circuit diagram showing a structure relating to the temperature control in the refrigerator. Is. As shown in FIG. 2, a heat insulating partition plate 30 having a communication port 31 provided with a damper 31a at a front portion and a rear portion is provided substantially horizontally at a lower portion of each of the refrigerators 3a and 3b, and a predetermined volume is provided at a bottom portion of the refrigerator. A cool storage unit 32 having a space is formed, in which a cool storage material 33, an evaporator described later, and a circulation fan are arranged. Also, as shown in FIG.
A heat insulating partition plate 3 having a communication port 31 provided with a damper 31a in the front and rear portions in the lower part of the heating chambers 4a, 4b as well.
0 is provided substantially horizontally, and a heat storage unit 34 having a space of a predetermined volume is formed at the bottom of the inside of the refrigerator, and a heat storage material 35, a heater to be described later, and a circulation fan are arranged therein.

Further, in FIG. 4, 11 is a cooling device,
Compressor 111, compressor drive circuit 112, four-way switching valve 113, evaporators 114a to 114d, expansion valve 115, condenser 11
6, a fan 117 for cooling the condenser 116, a fan drive circuit 118 for driving the fan 117, and solenoid valves 119a, 119b and a flow rate control valve 119c, which are connected by a pipe to form a refrigeration circuit as is well known. Has been done. further,
In this refrigeration circuit, the evaporator 114a and the evaporator 114b are connected in parallel, and the evaporator 114a and the evaporator 114b are connected in parallel, and the evaporators connected in parallel are further connected in series, The four-way valve 113 can switch the flow direction of the refrigerant to these evaporators.
Here, the flow rate of the refrigerant to the evaporators 114a and 114b is the solenoid valve 119a,
It is controlled by 119b and the flow control valve 119c.

The above-mentioned evaporator 114a is arranged in the lower part of the delivery shooter 7 of the cooling box 3a, the evaporator 114c is arranged in the cool storage unit 32 of the cooling box 3a, and the evaporator 114b is arranged in the delivery box 7 of the cooling box 3b. At the bottom, the evaporators 114d are arranged in the cool storage unit 32 of the cooling box 3b. Further, the other components are arranged in the machine room 8.

A heating device 12 is composed of heaters 121a to 121d and a heater driving circuit 122. The heater 121a is provided below the delivery shooter 7 in the heating chamber 4a and the heater 121b.
Are arranged in the heat storage unit 34 of the heating cabinet 4a, the heater 121c is below the delivery shooter 7 in the heating cabinet 4b, and the heater 121d is the heat storage unit 34 of the heating cabinet 4ba.
It is arranged in each. Also, heater drive circuit
122 is arranged in the machine room 8.

13a to 13h are circulation fans, and the circulation fans 13a to 13d are cooling chambers 3a and 3b and warming chambers 4a and 4a.
The circulation fans 13e to 13h are arranged in the lower part of the delivery shooter 7 in 4b, and are arranged in the cold storage unit 32 of the cooling storages 3a and 3b and the heat storage unit 34 of the heating storages 4a and 4b, respectively. A circulation fan drive circuit 14 drives each of the circulation fans 13a to 13h.

Reference numerals 15a to 15e denote temperature detectors, which are the outside air temperature, the temperatures inside the cooling chambers 3a and 3b, and the heating chambers 4a and 4a, respectively.
It is arranged so that the temperature in 4b can be detected. 16
Is a timer, which is composed of a crystal oscillator, a digital counter, etc., and outputs digital data representing the standard time in seconds. Reference numeral 17 denotes a DIP switch, which sets the start time and end time of a time zone in which power demand is high. Reference numeral 18 denotes a damper drive circuit, which is based on a control signal from a temperature control unit 19 which will be described later, and which stores the cold storage units 3 of the cooling boxes 3a and 3b.
2 and the respective dampers 31a of the heat storage units 34 of the heating chambers 4a and 4b are opened and closed.

Reference numeral 19 denotes a temperature control unit, which is composed of a well-known CPU or the like, reads the detected temperatures of the temperature detectors 15a to 15e, the standard time output from the timer 16, and the set time of the DIP switch 17, and based on these, Cooling device 11, heating device 12, circulation fan drive circuit 14, damper drive circuit 18, solenoid valves 119a, 119b, and flow control valve 1
The drive control of 19c is performed, and the cooling chambers 3a and 3b and the heating chamber 4 are
Temperature control is performed so that the temperatures in a and 4b become a predetermined temperature.

Next, the operation of the first embodiment having the above-mentioned structure, particularly the temperature control operation will be described with reference to FIGS. Here, FIG. 5 is a diagram showing the relationship between the outside air temperature and the operating rates of the cooling device and the heating device, FIGS. 6 to 9 are temperature control flowcharts, and FIG. 10 is a description of the operation of each part in the temperature control in the refrigerator 3. Timing chart, FIG. 11 is a timing chart for explaining the operation of each part in the temperature control in the heating chamber 4. In the present embodiment, the cooling device 11 is used so as to utilize the electric power in the midnight electric power time zone in which the electric power demand is low and reduce the electric power consumption in the time zone in which the electric power demand is high.
Drive control of the heating device 12 and the circulation fans 13a and 13b,
And the damper 3 of the cool storage unit 32 and the heat storage unit 34
The open / close of 1a is controlled to control the coolers 3a and 3b and the warmer 4
The temperature control is performed so that the temperatures in a and 4b become a predetermined temperature. That is, when the power consumption is high between the start time and the end time of a time zone where the power demand is high, for example, from 12:30 in the daytime to 18:00 in the evening, the start time is 12:30 and the end time is again. 18:00 is set in advance in the DIP switch 17. Further, since the midnight power time zone is currently set to 8 hours from 23:00 in the middle of the night to 7:00 in the next morning, these times are set in advance in the program of the temperature control unit. Further, the operation rates of the cooling device 11 and the heating device 12 with respect to the outside air temperature are obtained in advance by experiments or the like, and are set in the program of the temperature control unit 19 as an operation control table. In this operation control table, as shown in FIG. 5, the outside air temperature and the operating rate are in a substantially proportional relationship, and the inside temperature can be maintained within the allowable temperature range by the minimum necessary power consumption with respect to the change in the outside air temperature. Thus, the operating rate for the outside air temperature is set. As described above, in the present embodiment, energy for maintaining the temperature inside the refrigerator is accumulated to some extent in the midnight power time period when the power demand is low, and the power consumption in the vending machine during the daytime, particularly in the time period when the power demand is high, is reduced. Have reduced.

When the vending machine of this embodiment is activated, the temperature control section 19 reads the start time ts and the end time te of the time zone set in the DIP switch 17 with a high power demand (S1, S2). The current time tn is read from the timer 16 (S3). Thereafter, it is determined whether or not the current time tn is in the morning, that is, between the end time tms of the midnight power time zone and the start time ts set in the DIP switch 17 (S4). As a result of this determination, the current time t
When n is not between the time tms and the time ts, S2 described later is performed.
When the present time tn is between the time tms and the time ts, the reference internal chamber temperatures Tca and Tcb of the cooling cabinets 3a and 3b are changed to the standard reference internal refrigerator temperature T11a, respectively.
In addition to T11b, the standard reference internal temperatures Tha and Thb of the heating chambers 4a and 4b are respectively set to the standard reference internal heating chamber temperatures T12a and T12b.
(S5, S6). Furthermore, the refrigerator 3
a, 3b and circulation fans 13a in the heating chambers 4a, 4b.
13d is driven by standard air volume operation (S7), all dampers 31a of the cool storage unit 32 and the heat storage unit 34 are closed (S8), and the circulation fans 13e to 13h in the cool storage unit 32 and the heat storage unit 34 are driven. Is stopped (S9). Furthermore, temperature detectors 15b-1
Cooling chambers 3a, 3b and heating chambers 4a, 4b by 5e
The internal temperatures T1a, T1b, T2a, T2b are detected (S10,
S11).

Next, the temperature control unit 19 determines that the temperature T1a in the refrigerator 3a is equal to the reference temperature T11a in the refrigerator 3a by a predetermined allowable value ΔT.
Is determined to be equal to or higher than the temperature (S1
2). As a result of this determination, when the temperature T1a in the refrigerator 3a is equal to or higher than the temperature (T11a + ΔT), the process proceeds to S14 described later, and when the temperature T1a is not equal to or higher than the temperature (T11a + ΔT), the temperature T1b in the refrigerator 3b. Is greater than or equal to the temperature obtained by adding the allowable value ΔT to the reference internal cold storage temperature T11b (S13). As a result of this determination, when the temperature T1b in the refrigerator 3b is not higher than the temperature (T11b + ΔT), the process proceeds to S16, which will be described later, and the temperature T1b is equal to the temperature (T11b + ΔT).
ΔT) or more, the solenoid valves 119a, 1 of the cooling device 11
The setting of 19b and the flow control valve 119c is changed (S14), and the cooling device 11 is driven (S15).

As a result of the determination in S13, if the temperature T1b in the refrigerator 3b is not higher than the temperature (T11b + ΔT), the temperature T1a in the refrigerator 3a is equal to or lower than the temperature obtained by subtracting the allowable value ΔT from the reference temperature T11a in the refrigerator. It is determined whether or not (S16). As a result of this determination, the temperature T1a in the refrigerator 3a
Is not below the temperature (T11a-ΔT), S1 to be described later
When the temperature T1a is equal to or lower than the temperature (T11a-ΔT) after shifting to the process of 9, whether or not the temperature T1b in the cooling compartment 3b is equal to or lower than the temperature obtained by subtracting the allowable value ΔT from the reference cooling compartment internal temperature T11b. Is determined (S17). As a result of this determination, when the temperature T1b in the refrigerator 3b is not lower than the temperature (T11b-ΔT), the process proceeds to S20 described later, and when the temperature T1b is lower than the temperature (T11b-ΔT), the cooling device 11 is operated. The drive is stopped (S18), and the process proceeds to S21, which will be described later.

As a result of the determination in S16, when the temperature T1a in the cooling compartment 3a is not lower than the temperature (T11a-ΔT), the temperature T1b in the cooling compartment 3b is subtracted from the reference cooling compartment temperature T11b by the allowable value ΔT. It is determined whether the temperature is equal to or lower than the temperature (S19). As a result of this determination, the temperature T1b in the refrigerator 3b
When is lower than the temperature (T11b-ΔT), the settings of the solenoid valves 119a and 119b and the flow rate control valve 119c of the cooling device 11 are changed (S20).

After that, the temperature control unit 19 determines whether or not the temperature T2a in the heating chamber 4a is equal to or lower than the temperature obtained by subtracting the allowable value ΔT from the reference heating chamber temperature T12a (S21).
As a result of this determination, the temperature T2a in the heating chamber 4a is equal to the temperature (T12
a-ΔT) or less, the heater 121a in the heating chamber 4a
After the power is turned on (S22), the process proceeds to S25 described later. Further, the temperature T2a in the heating chamber 4a is the temperature (T12a-
If it is not less than ΔT), it is determined whether or not the temperature T2a in the heating chamber 4a is equal to or higher than the temperature obtained by adding the allowable value ΔT to the reference heating chamber temperature T12a (S23). As a result of this judgment,
When the temperature T2a in the heating chamber 4a is not higher than the temperature (T12a + ΔT), the process proceeds to S25 described later, and when the temperature T2a is not lower than the temperature (T12a + ΔT), the heater 121a in the heating chamber 4a is energized. After stopping (S24), heating chamber 4
The temperature T2b in b is an allowable value Δ from the temperature T12b in the reference heating chamber.
It is determined whether the temperature is equal to or lower than the temperature obtained by subtracting T (S2
5). As a result of this determination, when the temperature T2b in the heating chamber 4b is equal to or lower than the temperature (T12b-ΔT), the heater 121b in the heating chamber 4b is energized (S26), and then the process proceeds to S1. Further, the temperature T2b in the heating chamber 4b is the temperature (T12b-
If it is not equal to or less than ΔT), it is determined whether or not the temperature T2b in the heating chamber 4b is equal to or higher than the temperature obtained by adding the allowable value ΔT to the reference heating chamber temperature T12b (S27). As a result of this judgment,
When the temperature T2b in the heating chamber 4b is not equal to or higher than the temperature (T12b + ΔT), the process proceeds to S1. When the temperature T2b is equal to or higher than the temperature (T12b + ΔT), the power supply to the heater 121b in the heating chamber 4b is stopped. After that (S28), the process proceeds to S1.

As a result, the cooling device 11 and the heating device 12 are operated at the same settings as in the prior art from 7:00 in the morning to the daytime, and the temperatures in the cooling chambers 3a, 3b and the heating chambers 4a, 4b are kept at the same level. Maintained at standard temperature.

As a result of the determination in S4, it is determined whether or not the current time tn is in a time zone in which power demand is high, that is, the current time tn is between the start time ts and the end time te set in the DIP switch 17. It is determined whether or not (S29).

As a result of this determination, when the current time tn is in the time zone where the power demand is high, the cooling device 11 and the heating device 12 are
And driving of all the circulation fans 13a to 13h is stopped (S30, S31, S32), and the cool storage unit 32 is also provided.
And all the dampers 31a of the heat storage unit 34 are opened (S33). After that, the processing shifts to the processing of S1.

As a result, the regenerator material 3 of the regenerator unit 32 is
Since the energy stored in 3 suppresses the rise of the temperature in the refrigerators 3a, 3b and the product temperature, the cooling is performed in the summer when the power demand is high such that the total power consumption exceeds the power supply of the power plant. Device 11, heating device 12
Since the operation of the circulation fans 13a to 13h is stopped, the power consumption of the vending machine can be reduced. Further, by stopping the circulation fans 13a to 13d, it is possible to reduce the amount of outside air that flows into the storage from the outside through the product outlet 1c, packing, etc. at the time of selling the product. Fluctuations in temperature, that is, temperature rises in the cooling chambers 3a and 3b and temperature reductions in the heating chambers 4a and 4b can be suppressed, and power consumption can also be reduced. At this time, the circulation fan 13a
Since ~ 13d is stopped, the temperature inside the storage chamber does not become uniform, but it is located below the column 6 and the evaporator 114
Since the products immediately before being sold which are close to the a, 114b or the heaters 121a, 121b are cooled or heated more than the products on the upper side, the products having the same temperature as usual can be sold.

Further, as a result of the determination in S29, when the current time tn is not in a time zone where the power demand is high, it is determined whether or not the current time tn is the time from the evening to the night, that is, the time te.
Between the time tms and the time tms (S34). If the current time tn is not between the time t e and the time t ms, the process proceeds to S ##, which will be described later, and the current time t n is the time t e. Time t
When it is between ms, it is assumed that the current time tn is in the time zone from the evening to the night, and the temperature control unit 19 causes all the dampers 31a of the cold storage unit 32 and the cold storage unit 34 to operate.
After closing (S35), the outside temperature Tex is detected by the temperature detector (S36), and the operating rates of the cooling device 11 and the heating device 12 corresponding to the outside air temperature Tex detected based on the operation control table are obtained (S37). ). Thereafter, the operating rates of the cooling device 11 and the heating device 12 are changed based on the obtained operating rate (S38, S39), and the cooling chamber 3a,
3b and circulation fans 13a to 13 in the heating chambers 4a and 4b
The d is driven by a weak wind operation (S40), and the process proceeds to S1.

As a result, the operating rates of the cooling device 11 and the heating device 12 are made to be the minimum required following the time when the power demand is high, so that the power consumption can be reduced. Further, since the amount of air blown from the circulation fans 13a to 13d is reduced, it is possible to reduce the amount of outside air that flows into the storehouse from the outside via the product outlet 1c when the product is sold. Fluctuation of temperature, that is, refrigerator 3
It is possible to suppress an increase in the temperature inside the a and 3b and a decrease in the temperature inside the heating chambers 4a and 4b, which also reduces the power consumption.

As a result of the determination in S34, if the current time tn is not between time te and time tms, the temperature control unit 19
Indicates that the current time tn is a time during the midnight power time period, and the reference internal temperatures Tca and Tcb of the cooling storages 3a and 3b.
Is a predetermined reference cooling chamber temperature T21a, T21b lower than the standard
In addition, the reference internal chamber temperatures Tha and Thb of the heating chambers 4a and 4b are respectively set to predetermined reference internal heating chamber temperatures T22a and T22b higher than the standard (S41, S42).

Further, the temperature control section 19 includes a cooling box 3a,
3b and circulation fans 13a to 13 in the heating chambers 4a and 4b
Each of d is stopped (S43), all the dampers 31a of the cold storage unit 32 and the heat storage unit 34 are opened (S44), and the circulation fans 13e to 13h in the cold storage unit 32 and the heat storage unit 34 are driven by a large air volume operation. (S45). After this, the temperature detectors 15b to 15e detect the temperatures T1a, T1b, T2a, T2b in the cooling chambers 3a, 3b and the heating chambers 4a, 4b (S46, S4).
7).

Next, the temperature control section 19 determines that the temperature T1a in the cooling compartment 3a is equal to the reference cooling compartment temperature T21a by a predetermined allowable value ΔT.
Is determined to be equal to or higher than the temperature (S4
8). As a result of this determination, when the temperature T1a in the refrigerator 3a is equal to or higher than the temperature (T21a + ΔT), the process proceeds to S50 described later, and when the temperature T1a is not equal to or higher than the temperature (T21a + ΔT), the temperature T1b in the refrigerator 3b. Is greater than or equal to the temperature obtained by adding the allowable value ΔT to the reference internal cold storage temperature T21b (S49). As a result of this determination, when the temperature T1b in the refrigerator 3b is not higher than or equal to the temperature (T21b + ΔT), the process proceeds to S52, which will be described later, and the temperature T1b is equal to the temperature (T21b +
ΔT) or more, the solenoid valves 119a, 1 of the cooling device 11
The setting of 19b and the flow control valve 119c is changed (S50), and the cooling device 11 is driven (S51).

As a result of the determination in S49, if the temperature T1b in the refrigerator 3b is not higher than the temperature (T21b + ΔT), the temperature T1a in the refrigerator 3a is equal to or lower than the temperature obtained by subtracting the allowable value ΔT from the reference temperature T21a in the refrigerator. It is determined whether or not (S52). As a result of this determination, the temperature T1a in the refrigerator 3a
If the temperature is not lower than the temperature (T21a-ΔT), S5 will be described later.
If the temperature T1a is equal to or lower than the temperature (T21a−ΔT), the temperature T1b in the refrigerator 3b is equal to or lower than the reference temperature T21b minus the allowable value ΔT. Is determined (S53). As a result of this determination, when the temperature T1b in the refrigerator 3b is not lower than the temperature (T21b-ΔT), the process proceeds to S56 described later, and when the temperature T1b is lower than the temperature (T21b-ΔT), the cooling device 11 is cooled. The driving is stopped (S54), and the process proceeds to S57 described later.

As a result of the determination in S52, when the temperature T1a in the cooling compartment 3a is not lower than the temperature (T21a-ΔT), the temperature T1b in the cooling compartment 3b is obtained by subtracting the allowable value ΔT from the reference cooling compartment temperature T21b. It is determined whether the temperature is equal to or lower than the temperature (S55). As a result of this determination, the temperature T1b in the refrigerator 3b
When is lower than the temperature (T21b-ΔT), the settings of the solenoid valves 119a and 119b and the flow rate control valve 119c of the cooling device 11 are changed (S56).

After that, the temperature control unit 19 determines whether or not the temperature T2a in the heating chamber 4a is equal to or lower than the temperature obtained by subtracting the allowable value ΔT from the reference heating chamber temperature T22a (S57).
As a result of this determination, the temperature T2a in the heating chamber 4a is the temperature (T22
a-ΔT) or less, the heater 121a in the heating chamber 4a
After the power is turned on (S58), the process proceeds to S61, which will be described later. Further, the temperature T2a in the heating chamber 4a is the temperature (T22a-
If it is not equal to or less than ΔT), it is determined whether or not the temperature T2a in the heating chamber 4a is equal to or higher than the temperature obtained by adding the allowable value ΔT to the reference heating chamber temperature T22a (S59). As a result of this judgment,
When the temperature T2a in the heating chamber 4a is not higher than the temperature (T22a + ΔT), the process proceeds to S61, which will be described later. When the temperature T2a is higher than the temperature (T22a + ΔT), the heater 121a in the heating chamber 4a is energized. After stopping (S58), heating box 4
The temperature T2b in b is the allowable value Δ from the temperature T22b in the reference heating chamber.
It is determined whether the temperature is equal to or lower than the temperature obtained by subtracting T (S6
1). As a result of this determination, when the temperature T2b in the heating chamber 4b is equal to or lower than the temperature (T22b-ΔT), the heater 121b in the heating chamber 4b is energized (S62), and then the process proceeds to S1. Further, the temperature T2b in the heating chamber 4b is the temperature (T22b-
If it is not equal to or less than ΔT), it is determined whether or not the temperature T2b in the heating chamber 4b is equal to or higher than the temperature obtained by adding the allowable value ΔT to the reference heating chamber temperature T22b (S63). As a result of this judgment,
When the temperature T2b in the heating chamber 4b is not equal to or higher than the temperature (T22b + ΔT), the process proceeds to S1. When the temperature T2b is equal to or higher than the temperature (T22b + ΔT), the power supply to the heater 121b in the heating chamber 4b is stopped. After that (S64), the process proceeds to S1.

As a result, the cool storage material 33 is cooled and the heat storage material 3 is cooled during the midnight power time period when the power demand is low.
5 is heated, and sufficient energy can be stored in the time zone when power demand is high. Furthermore, the refrigerator 3
The products in a and 3b are cooled to a temperature within the allowable product storage temperature range and lower than the standard temperature, and the heating chamber 4
The products in a and 4b can be warmed to a temperature higher than the standard temperature within the allowable product storage temperature range, so the products in the cooling stores 3a and 3b and the warming chambers 4a and 4b are allowed after the end of the midnight power hours. Part of the thermal energy required to maintain the temperature range is stored in the warehouse and in the product itself.

As a result, the operating ratios of the cooling device 11, the heating device 12, and the circulation fans 13a to 13h are reduced during the summer when the total power consumption exceeds the supply amount of the power plant and there is a large amount of power demand. Therefore, the power consumption of the vending machine can be reduced. In addition, since the amount of air blown from the circulation fans 13a to 13d is reduced, the amount of outside air that flows into the warehouse from the outside via the product outlet 1c, packing, etc. at the time of selling the product can be reduced. It is possible to suppress fluctuations in the internal cold storage temperature, that is, increase in the internal cold storage 3a, 3b and decrease in the internal warming storage 4a, 4b, and this can also reduce power consumption.

Next, a second embodiment of the present invention will be described.
The configuration of the second embodiment is almost the same as that of the first embodiment described above, and the difference between the first embodiment and the second embodiment is that the heat storage unit 34 is placed in the heating chamber 4a as shown in FIG. , 4b. As a result, since the heat storage material 35 is arranged in the upper part of the inside of the refrigerator, it is possible to reduce the reduction in the holding energy of the heat storage material 35 due to heat convection in the time zones other than the time zone in which the power demand is set to the DIP switch 17. can do.

Next, a third embodiment of the present invention will be described.
FIG. 13 is a schematic configuration diagram showing a third embodiment, and FIG. 14 is a third embodiment.
FIG. 6 is a circuit diagram showing a configuration related to internal cold storage temperature control in the embodiment of FIG. In the figure, the same components as those in the first embodiment described above are designated by the same reference numerals and the description thereof will be omitted. In addition, the difference between the first embodiment and the third embodiment is that one cool storage unit 32 and one heat storage unit 34 are provided and two cool storage units 32 are provided.
a, 3b, the heat storage unit 34 is connected to the two heating chambers 4
It is connected to a and 4b. As a result, compared to the first embodiment, the cold storage unit and the heat storage unit are each 1
The space for the unit can be reduced, and
It is possible to reduce the evaporator 114d, the heater 121d, and the circulation fans 13g and 13h arranged in these units.

Also, in the third embodiment, unlike the first embodiment, the cooling boxes 3a, 3b and the heating boxes are set in the time zone set in the dip switch 17, that is, the time zone in which the power demand is high. The temperatures in 4a and 4b are detected, and the dampers 31a of the storage example unit 32 and the heat storage unit 34 are opened / closed based on the detected temperatures to maintain the temperature in each compartment within the allowable range.

That is, in the third embodiment, during the time zone set in the dip switch 17, as shown in the control flow chart of FIG. 15, the reference internal temperatures Tca and Tcb of the refrigerators 3a and 3b are set. Standard reference refrigerator temperature T11
a, T11b, and the standard reference internal temperatures Tha, Thb of the heating chambers 4a, 4b, respectively, are the standard reference internal heating temperatures T12a, T1.
Set 2b respectively (SP1, SP2). Next, the circulation fan 1 in the cooling chambers 3a and 3b and the heating chambers 4a and 4b.
The circulation fans 1 in the cool storage unit 32 and the heat storage unit 34 are stopped by stopping the respective driving of 3a to 13d (SP3).
The driving of 3e to 13h is stopped (SP4). Further, the temperature detectors 15b to 15e detect the temperatures T1a, T1b, T2a and T2b in the cooling chambers 3a and 3b and the heating chambers 4a and 4b (SP5 and SP6).

Next, the temperature control section 19 operates the first cooling box 3
It is determined whether or not the temperature T1a in a is equal to or higher than the temperature obtained by adding a predetermined allowable value ΔT to the reference cooling chamber internal temperature T11a (S).
P7). As a result of this determination, when the temperature T1a in the cooling compartment 3a is equal to or higher than the temperature (T11a + ΔT), the damper 31a corresponding to the cooling compartment 3a is opened (SP8), and the SP to be described later is executed.
The processing shifts to 11. Further, the detected temperature T1a is the temperature (T
11a + ΔT) or more, it is determined whether or not the detected temperature T1a is equal to or lower than the temperature obtained by subtracting the allowable value ΔT from the reference internal cold storage temperature T11a (SP9). As a result of this determination, when the temperature T1a in the cooling compartment 3a is equal to or lower than the temperature (T11a-ΔT), the damper 31a corresponding to the first cooling compartment 3a is closed (SP10), and the temperature T1a is the temperature (T11a-ΔT). )
If not, it is determined whether or not the temperature T1b in the second refrigerator 3b is equal to or higher than the temperature obtained by adding the allowable value ΔT to the reference refrigerator internal temperature T11b (SP11). As a result of this determination, when the temperature T1b in the cooling compartment 3b is equal to or higher than the temperature (T11b + ΔT), the damper 3 corresponding to the second cooling compartment 3b.
1a is opened (SP12), and the detected temperature T1b becomes the temperature (T11
If it is not greater than or equal to b + ΔT), it is determined whether the detected temperature T1b is equal to or lower than the temperature obtained by subtracting the allowable value ΔT from the reference internal cold storage temperature T11b (SP13). As a result of this determination, when the temperature T1b in the refrigerator 3b is equal to or lower than the temperature (T11b-ΔT), the damper 31a corresponding to the second refrigerator 3b is closed (SP14).

When the temperature T1a is not lower than the temperature (T11a-ΔT), the temperature T2a in the first heating chamber 4a is equal to or higher than the temperature obtained by adding the predetermined allowable value ΔT to the reference heating chamber temperature T12a. Is determined (SP15). As a result of this determination, the temperature T2a in the heating chamber 4a is equal to the temperature (T12a + Δ
If it is equal to or more than T), the damper 31a corresponding to the first heating chamber 4a is closed (SP16), and the process proceeds to SP19 described later. Further, the detected temperature T2a is the temperature (T12a +
If it is not equal to or more than ΔT), it is determined whether the detected temperature T2a is equal to or lower than the temperature obtained by subtracting the allowable value ΔT from the reference warming internal temperature T12a (SP17). As a result of this determination, when the temperature T2a in the heating chamber 4a is equal to or lower than the temperature (T12a-ΔT), the damper 31a corresponding to the heating chamber 4a is opened (S
P18), if the temperature T2a is not lower than the temperature (T12a-ΔT), it is determined whether the temperature T2b in the other heating chamber 4b is equal to or higher than the temperature obtained by adding the allowable value ΔT to the reference heating chamber temperature T12b. The determination is made (SP19). As a result of this determination, the heating cabinet 4
When the temperature T2b in b is equal to or higher than the temperature (T12b + ΔT), the damper 31a corresponding to the heating chamber 4b is closed (SP
20) If the detected temperature T2b is not equal to or higher than the temperature (T12b + ΔT), it is determined whether or not the detected temperature T2b is equal to or lower than the temperature obtained by subtracting the allowable value ΔT from the reference warming internal temperature T12b (SP21). As a result of this determination, the temperature T in the heating chamber 4b is
When 2b is below the temperature (T12b-ΔT), heating chamber 4b
The damper 31a corresponding to is opened (SP22).

As described above, during the hours when the power demand is high,
That is, by repeatedly performing the control during the time zone set in the dip switch 17, the temperature in the cooling chambers 3a, 3b and the heating chambers 4a, 4b is maintained within the allowable range, and the regenerator material 33, The energy held by the heat storage material 35 is effectively utilized to reduce power consumption.

Next, a fourth embodiment of the present invention will be described.
16 and 17 are schematic configuration diagrams showing the inside of a cooling cabinet and a heating cabinet in the fourth embodiment, and FIG. 18 is a circuit diagram showing a configuration relating to internal temperature control and power supply in the fourth embodiment. is there. In the figure, the same components as those in the first embodiment described above are designated by the same reference numerals and the description thereof will be omitted. Further, the difference between the first embodiment and the fourth embodiment is that
The heat insulation partition plate 30 between the cold storage unit 32 and the heat storage unit 34 and the inside of the cold storage is removed, and the cold storage unit 32 is arranged in the upper part of the cooling cold storage 3a, 3b, and the dip switch 17, the evaporators 114c, 114d, four. Directional valve 113, circulation fan 1
3e to 13h, the heaters 112c and 112d, and the damper drive circuit 18 are removed, the evaporators 114a and 114b cool the cold storage material 33 together with the interior, and the heaters 121a and 121b heat the thermal storage material together with the interior. To be there. Further, the cooling device 11 and the heating device 12 except during the midnight power hours.
Also, the circulation fans 13a to 13d are stopped, and the energy stored in the cold storage material 33 or the heat storage material 35 is circulated in the refrigerator by natural convection to cool and warm the refrigerator and goods.

Further, in the fourth embodiment, the power supply unit 4
0 is provided with a battery 41, and during the midnight power time zone, each unit is operated by a commercial power source and the battery 41 is charged, and the commercial power source is disconnected except during the midnight power time zone, and the product carry-out control section (not shown) is carried out from the battery 41. No.) and temperature control unit 19 and other components are supplied with power.

That is, the power supply unit 40 includes the battery 41, the rectifier 42, the switches 43 and 44, and the power supply switching control circuit 4.
It is equipped with 5. The AC voltage input from the commercial power source is converted into a DC voltage by the rectifier 42. The output of the rectifier 42 is connected to the first contact 44 a of the switch 44 and also to the battery 41 and the second contact 44 b of the switch 44 via the switch 43.
Power is supplied to the component from the contact piece 44c.
Further, the power supply switching control circuit 45 receives power supply from the battery 41 and controls switching of the switches 43 and 44 based on a control signal from the temperature control unit 19.

Next, the operation of the fourth embodiment having the above-mentioned structure, particularly the operation relating to temperature control and power supply switching control, will be described with reference to FIG. That is, when the vending machine is activated, the temperature control unit 19 reads the current time tn from the timer 16 (ST1) and determines whether the current time tn is in the midnight power time zone, that is, the current time tn is midnight. It is determined whether or not it is between the start time tms and the end time tme of the power time zone (ST2). As a result of this determination, when the current time tn is not in the midnight power time zone, the process proceeds to ST7 described later, and when the current time tn is in the midnight power time zone, the switch 43 is turned on via the power supply switching control circuit 45. When the switch 44 is turned on, the contact piece 44c of the switch 44 is connected to the first contact 44a to switch to the commercial power source (ST3). Next, the cooling device 11, the heating device 12, and the circulation fans 13a to 13
d is driven (ST3, ST4, ST5, ST6), and the process proceeds to ST1. As a result, during the midnight power time period, each component such as the carry-out control unit is driven by the commercial power source, and the battery 41 is charged. Furthermore, after the end of the midnight power time period, the thermal energy required to keep the products in the cooling boxes 3a and 3b and the heating boxes 4a and 4b within the allowable temperature range is the inside and the cold storage material 33 and the heat storage material 35.
It is also stored in the product itself.

As a result of the determination in ST2, when the current time tn is not in the midnight power time zone, the temperature control unit 19 turns off the switch 43 via the power supply switching control circuit 45 and also the contact piece 44c of the switch 44. Is connected to the second contact 44b to switch to the battery 41 (ST7). Next, the cooling device 11, the heating device 12, and the circulation fan 13a
Stop the driving of ~ 13d (ST8, ST9, ST1
0), the process proceeds to ST1. As a result, during the time period other than the midnight power time period, the battery 41 drives the components such as the carry-out control unit.

As described above, in the fourth embodiment, since the power of the commercial power source is consumed only in the midnight power time zone, it is possible to eliminate the power consumption in the daytime hours when the power demand is high, and in the summer. Can eliminate power consumption during times of high power demand where total power consumption exceeds the supply of power plants. In addition, the circulation fans 13a to 13
By stopping d, the product outlet 1
Since it is possible to reduce the amount of outside air flowing into the refrigerator from the outside via c, the temperature inside the refrigerator changes due to the sale of products, that is, the temperature inside the refrigerators 3a and 3b rises, and the heating chambers 4a and 4b.
It is possible to suppress a decrease in the internal temperature, and this can also reduce power consumption.

Further, in the time period other than the midnight power time period,
Although the circulation fans 13a to 13d are stopped, the cool storage material 33
Alternatively, the energy stored in the heat storage material 35 circulates in the refrigerator by natural convection to cool and heat the inside of the refrigerator and the commodities, so that it is possible to sell the commodity at the same temperature as the conventional one.

Next, a fifth embodiment of the present invention will be described.
The configuration of the fifth embodiment is the same as that of the fourth embodiment described above,
The difference between the fourth embodiment and the fifth embodiment is that the temperature of the maximum temperature in the day is ttm in the program of the temperature control unit 19.
The ax is set in advance, and the circulation fans 13a to 13d only for a predetermined time before the time when the maximum temperature is reached, for example, 10 minutes.
Is to drive.

That is, as shown in FIG. 20, when the vending machine is activated, the temperature controller 19 reads the current time tn from the timer 16 (Stp1), and the current time tn is in the midnight power time zone. It is determined whether or not the current time tn is between the start time tms and the end time tme of the midnight power time zone (Stp2). As a result of this determination, when the current time tn is not in the midnight power time zone, the process proceeds to Stp7 described later, and when the current time tn is in the midnight power time zone, the switch 43 is turned on via the power supply switching control circuit 45. When the switch 44 is turned on, the contact piece 44c of the switch 44 is connected to the first contact 4
4a and switch to commercial power supply (Stp3). Next, the cooling device 11, the heating device 12, and the circulation fan 13a
Drive ~ 13d (Stp3, Stp4, Stp5, Stp
6) The process shifts to Stp1. As a result, during the midnight power time period, each component such as the carry-out control unit is driven by the commercial power source, and the battery 41 is charged. Further, after the midnight power time period ends, the refrigerators 3a, 3b
In addition, the thermal energy required to maintain the products in the heating chambers 4a and 4b within the allowable temperature range is stored in the chamber and in the cold storage material 33, the heat storage material 35, and the products themselves.

As a result of the determination of Stp2, when the current time tn is not in the midnight power time zone, the temperature control section 19 turns off the switch 43 via the power source switching control circuit 45 and the contact piece 44c of the switch 44. Is connected to the second contact 44b to switch to the battery 41 (Stp7).

Next, the temperature controller 19 controls the cooling device 11
And after stopping the driving of the heating device 12 (Stp8, Stp
9), the time tt at which the current time tn becomes the highest temperature in the day
Whether it is within 10 minutes before max, that is, the current time is time tt
It is determined whether the time is between the time (ttmax-10) obtained by subtracting 10 minutes from max and the time ttmax (Stp
10). As a result of this determination, the current time is 1 from the time ttmax.
When the time is not between the time (ttmax-10) after subtracting 0 minutes and the time ttmax, the drive of the circulation fans 13a to 13d is stopped (Stp11), and the current time is the time (ttmax-
When the time is from 10) to time ttmax, the circulation fans 13a to 13d are driven (Stp12), and the S
Move to tp1 processing. As a result, during the time period other than the midnight power time period, the battery 41 drives the respective components such as the carry-out control unit, and the circulating fan 13a to 10 minutes before the time ttmax when the maximum temperature is reached in the day. Thirteen
Since d is driven, the air in the cold storage is agitated and the energy of the cold storage material 33 or the heat storage material 35 is circulated in the cold storage to uniformly cool or warm the cold storage and the products in the cold storage.

As described above, according to the first to fifth embodiments, the electric power in the late-night electric power time zone in which the electric power demand is small is utilized, and the electric power consumption in the time zone in which the electric power demand is high is reduced. The cooling device 11, the heating device 12, and the circulation fans 13a to 13h are drive-controlled to cool the storage boxes 3a and 3b.
In addition, since temperature control is performed so that the temperature in the warming cabinets 4a and 4b becomes a predetermined temperature, consumption of the vending machine in a time zone where power demand is high while keeping the products in the cabinets within the allowable temperature range. The power can be reduced.

The configuration and control flow in this embodiment are examples, and the present invention is not limited to this. For example, the cold storage unit 32 and the heat storage unit 34 may be arranged in the same refrigerator, and they may be switched and used depending on the products in the refrigerator so that they can be used as both a cold storage and a heating storage.

[0083]

As described above, according to the first aspect of the present invention, the driving of the cooling device is stopped during the time zone set by the time zone setting means, and stored in the cold storage material and the goods in the warehouse. Since the inside of the refrigerator is maintained at a temperature within the predetermined temperature range by the energy, the power consumption of the vending machine in the daytime hours when the power demand is high can be reduced as compared with the conventional case.

According to the second aspect of the invention, the driving of the heating device is stopped during the time zone set by the time zone setting means, and the energy stored in the heat storage material and the goods in the warehouse causes the interior of the warehouse to have a predetermined temperature range. Since the internal temperature is maintained, it is possible to reduce the power consumption of the vending machine during the daytime when the power demand is high compared to the conventional case.

Further, according to claim 3, in addition to the above effects, a rapid increase in the operating rate of the cooling device or the heating device at the time of replenishment of goods from the outside is avoided, so during the daytime when power demand increases. It is possible to further reduce the power consumption in the time zone.

Further, according to claim 4, in addition to the above effect, at least in the lower part of the inside of the refrigerator due to the energy stored in the regenerator material in the time zone in which the power demand is set by the time zone setting means. Since the temperature of the product just before the sale is maintained within the predetermined temperature range, it is possible to further reduce the power consumption during the daytime when the power demand is high, and to sell the product at the appropriate temperature to the customer. You can

According to the fifth aspect, in addition to the above effects, the energy stored in the heat storage material is positioned at least at the lower part of the inside of the refrigerator during the time zone when the power demand is set by the time zone setting means. Since the temperature of the product just before the sale is maintained within the predetermined temperature range, it is possible to further reduce the power consumption during the daytime when the power demand is high, and to sell the product at the appropriate temperature to the customer. You can

Further, according to claim 6, in addition to the above effect, since the heat storage material is disposed in the upper part of the inside of the refrigerator, the time other than the time zone in which the power demand is set by the time zone setting means is high. It is possible to reduce the reduction in the retained energy of the heat storage material due to the convection of heat in the band.

According to claim 7, in addition to the above effects, the temperature control means causes the refrigerant to flow from the second evaporator toward the evaporator of the cooling device at least during the midnight power time period. As described above, the four-way valve is switched, the regenerator material is mainly cooled, and the inside of the refrigerator is cooled accordingly, so that the cooling device and the auxiliary cooler can be integrally formed, and the cost of the device can be reduced, It is also possible to reduce power consumption in the midnight power time zone.

Further, according to claim 8, in addition to the above effect, since the common cold storage unit is used for a plurality of product storages, the device cost can be reduced and the cold storage can be achieved. Since the energy stored in the unit can be used efficiently, the power consumption can be reduced. Further, since the space required for disposing the cold storage unit can be reduced, the vending machine can be formed in a small size.

Further, according to claim 9, in addition to the above effect, since the common heat storage unit is used for a plurality of product storages, the device cost can be reduced and the heat storage can be achieved. Since the energy stored in the unit can be used efficiently, the power consumption can be reduced. Furthermore, since the space required for disposing the heat storage unit can be reduced, the vending machine can be formed in a small size.

According to the tenth aspect, since the electric power required for cooling the inside of the refrigerator is supplied only by the midnight electric power,
It is possible to reduce the power consumption during the daytime when the power demand is high. Further, since the cool storage material is arranged in the upper part of the refrigerator and the cool air emitted from the cool storage material reaches the bottom portion of the refrigerator by natural convection, the products in the refrigerator can be efficiently cooled.

According to the eleventh aspect, since the electric power required for heating the inside of the refrigerator is supplied only by the midnight electric power,
It is possible to reduce the power consumption during the daytime when the power demand is high. Furthermore, since the heat storage material is arranged in the lower part of the storage and the hot air emitted from the heat storage material reaches the upper part of the storage by natural convection, the products in the storage can be efficiently heated.

According to the twelfth aspect, since the electric power required for cooling the inside of the refrigerator is supplied only by the midnight electric power,
It is possible to reduce the power consumption during the daytime when the power demand is high. Further, since the cool storage material is arranged in the upper part of the refrigerator and the cool air emitted from the cool storage material reaches the bottom of the refrigerator by natural convection, the products in the refrigerator can be efficiently cooled. Furthermore, since the blower is driven and the air in the refrigerator is circulated during a predetermined time before the time when the maximum temperature of the day is reached,
Even if there is a temperature difference in each part of the cabinet while the blower is stopped, the temperature inside the cabinet is made almost uniform and the temperature of each part in the cabinet is maintained within the allowable range. , You can sell merchandise of suitable temperature.

According to the thirteenth aspect, in addition to the above effects, the amount of external air flowing into the inside of the store from the product carry-out port at the time of sale of the product is reduced due to the circulation of the air in the store, thereby reducing the temperature inside the store. Since the rise is suppressed, the temperature of the product can be maintained at an appropriate temperature.

Further, according to the fourteenth aspect, in addition to the above effect, since the electric power is supplied from the storage battery to the respective components including the product carrying-out means during the time period other than the midnight electric power time period, the power demand is increased. It is possible to further reduce the power consumption in a large daytime period.

[Brief description of drawings]

FIG. 1 is an external perspective view showing a first embodiment of the present invention.

FIG. 2 is a side sectional view showing the inside of the refrigerators 3a and 3b in the first embodiment.

FIG. 3 is a side sectional view showing the inside of the heating chambers 4a and 4b in the first embodiment.

FIG. 4 is a circuit diagram showing a configuration relating to internal temperature control in the first embodiment.

FIG. 5 is a diagram showing the relationship between the outside air temperature and the operating rates of the cooling device and the heating device in the first embodiment.

FIG. 6 is a temperature control flowchart in the first embodiment.

FIG. 7 is a temperature control flowchart in the first embodiment.

FIG. 8 is a temperature control flowchart in the first embodiment.

FIG. 9 is a temperature control flowchart in the first embodiment.

FIG. 10 is a timing chart for explaining the operation of each part in the temperature control inside the cooling box in the first embodiment.

FIG. 11 is a timing chart for explaining the operation of each part in the temperature control inside the heating chamber in the first embodiment.

FIG. 12 is a side sectional view showing the inside of the warming chamber in the second embodiment.

FIG. 13 is a schematic configuration diagram showing a third embodiment.

FIG. 14 is a circuit diagram showing a configuration related to temperature control in the refrigerator in the third embodiment.

FIG. 15 is a temperature control flowchart in the third embodiment.

FIG. 16 is a schematic configuration diagram showing the inside of a refrigerator in a fourth embodiment.

FIG. 17 is a schematic configuration diagram showing the inside of a heating chamber according to the fourth embodiment.

FIG. 18 is a circuit diagram showing a configuration relating to internal temperature control and power supply in a fourth embodiment.

FIG. 19 is a temperature control flowchart in the fourth embodiment.

FIG. 20 is a temperature control flowchart in the fifth embodiment.

[Explanation of symbols]

1 ... Vending machine body, 1a ... Inner door, 1b ... Outer door, 1c ...
Commodity take-out port 1d ... Outgoing door, 2 ... Wall body, 3a, 3b ... Cooling room, 4a, 4b ... Heating room, 5 ... Insulating wall, 6 ... Serpentine column, 7 ... Delivery shooter, 8 ... Machine room, 1
1 ... Cooling device, 111 ... Compressor, 112 ... Compressor drive circuit, 113 ... Four-way switching valve, 114a-114d ... Evaporator, 1
15 ... Expansion valve, 116 ... Condenser, 117 ... Fan, 118 ... Fan drive circuit, 119a, 119b ... Electromagnetic valve, 119c ... Flow control valve, 1
2 ... Heating device, 121a-112d ... Heater, 122 ... Heater drive circuit, 13a-13h ... Circulation fan, 14 ... Circulation fan drive circuit, 15a-15e ... Temperature detector, 16 ... Timer, 17 ... Dip switch, 18 ... Damper drive circuit, 19 ... Temperature control unit, 30 ... Adiabatic partition plate, 31 ... Communication port, 31a ... Damper, 32 ... Cool storage unit, 33 ...
Cold storage material, 34 ... Heat storage unit, 35 ... Heat storage material, 40 ... Power supply section, 41 ... Battery, 42 ... Rectifier, 43, 44 ...
Switch, 45 ... Power supply switching control circuit.

Claims (14)

[Claims] 1. A cooling device is driven to control the temperature inside the storage so that the internal storage temperature becomes a preset reference internal storage temperature, and the products stored in the storage are cooled by using midnight power. In the late-night power vending machine that performs the operation, the cold storage material placed at a predetermined position in the refrigerator and the time zone setting means for setting the time zone in which the power demand is high are provided, and the time set in the time zone setting means is provided. The belt is provided with temperature control means for stopping the drive of the cooling device, The vending machine using late-night power, characterized in that: 2. The heating device is driven to control the temperature inside the storage so that the internal storage temperature becomes a preset reference internal storage temperature, and the night-time electric power is used to heat the products stored in the storage. In the vending machine using electricity at midnight, which is provided with a heat storage material arranged at a predetermined position in the refrigerator and a time zone setting means for setting a time zone in which power demand is high, the time set by the time zone setting means is provided. The belt is provided with temperature control means for stopping the driving of the heating device. 3. An outside air temperature detecting means for detecting an outside air temperature, and an operation control table in which an operation rate of a cooling device or a heating device with respect to the outside air temperature is preset are provided.
The temperature control means operates the cooling device or the heating device based on the operation control table at least during the time period from the end of the time period set in the time period setting means to the midnight power time period. The vending machine using late-night power according to claim 1 or 2, characterized in that. 4. A partition wall having a communication port that can be opened and closed by a damper is provided between the bottom of the inside of the refrigerator and the upper part of the inside of the refrigerator, and an auxiliary cooler, a regenerator and a blower are arranged below the partition. A cool storage unit is configured, and the temperature control means opens the damper at least in the time zone set in the time zone setting means, drives the auxiliary cooler in the midnight power time zone, and sets the time zone. The vending machine using late-night power according to claim 1 or 3, wherein the driving of the auxiliary cooler is stopped and the blower is driven in a time zone set in the means. 5. A partition wall having a communication port that can be opened and closed by a damper is provided between the bottom and the top of the compartment, and an auxiliary heater, a heat storage material and a blower are arranged below the partition wall. A heat storage unit is configured, and the temperature control means opens the damper at least during the time zone set by the time zone setting means, drives the auxiliary heater during the midnight power time zone, and sets the time zone. The vending machine using late-night power according to claim 2 or 3, wherein the driving of the auxiliary heater is stopped and the blower is driven during a time period set in the means. 6. An auxiliary heater, a heat storage material and a blower are arranged in the upper part of the inside of the refrigerator, and the temperature control means drives the auxiliary heater during the midnight power time zone and is set in the time zone setting means. The vending machine using late-night power according to claim 2 or 3, wherein the driving of the auxiliary heater is stopped during a time zone to drive the blower. 7. The cooling device comprises a cooling circuit having an evaporator, a condenser, and a compressor, and the auxiliary cooling device is constituted by a second evaporator connected in series to the evaporator of the cooling device. At the same time, a four-way valve that reverses the refrigerant flow path to the evaporator and the second evaporator is provided, and the temperature control means is configured to evaporate from the second evaporator at least during the midnight power time period. The vending machine using electric power at midnight according to claim 4, wherein the four-way valve is switched so that the refrigerant flows toward the container. 8. A plurality of product storage compartments that are partitioned from each other by heat insulating walls, one cold storage unit commonly used for the plurality of product storage compartments, and the cool storage unit and each of the product storage compartments that communicate with each other. A plurality of communication passages, a plurality of dampers arranged in each communication passage, and a plurality of temperature detectors for detecting the temperature in each product storage, and the temperature control means is at least the time zone setting means. While opening and closing the damper based on the temperature detected by the temperature detector in the time zone set in, the auxiliary cooler is driven in the midnight power time zone, in the time zone set in the time zone setting means. The vending machine using midnight power according to claim 4, wherein the driving of the auxiliary cooler is stopped to drive the blower. 9. A plurality of product storage compartments partitioned from each other by heat insulating walls, a heat storage unit commonly used for the plurality of product storage compartments, and the heat storage unit and each of the product storage compartments communicating with each other. A plurality of communication passages, a plurality of dampers arranged in each communication passage, and a plurality of temperature detectors for detecting the temperature in each product storage, and the temperature control means is at least the time zone setting means. While opening and closing the damper based on the temperature detected by the temperature detector in the time zone set in, the auxiliary heater is driven in the midnight power time zone, in the time zone set in the time zone setting means. The vending machine using late-night power according to claim 5, wherein the driving of the auxiliary heater is stopped to drive the blower. 10. A refrigerator is provided with temperature control means for controlling the temperature inside the refrigerator by driving the cooling device so that the temperature inside the refrigerator becomes a preset reference internal temperature. In a vending machine that uses night power for cooling the stored products, a cool storage material arranged in the upper part of the refrigerator, a cooling device for cooling the cool storage material and the refrigerator, and a blower for circulating the air in the refrigerator are installed. Along with being provided, the temperature control means drives the cooling device and the blower only during a midnight power time period. 11. A storage device is provided with temperature control means for driving the heating device to control the temperature inside the storage so that the internal storage temperature becomes a preset reference internal storage temperature, and storing in the storage using midnight power. In a vending machine that uses electric power for midnight to heat the stored products, a heat storage material disposed in the lower part of the storage, a heating device that heats the heat storage material and the storage, and a blower that circulates the air in the storage Along with being provided, the temperature control means drives the heating device and the blower only during a midnight power time period. 12. A storage device is provided with temperature control means for controlling the temperature inside the refrigerator by driving a cooling device so that the temperature inside the refrigerator becomes a preset reference temperature inside the refrigerator, and stores the electricity in the refrigerator by using midnight power. In a vending machine using electric power at night, which cools the stored products, a cool storage material arranged at the upper part of the refrigerator, a cooling device for cooling the cool storage material and the refrigerator, and a blower for circulating the air in the refrigerator, The temperature control means drives the cooling device only in the midnight power time zone, and the temperature control means sets the time at which the maximum temperature of the day is reached, and the temperature control means sets the midnight power time zone and the maximum temperature. A vending machine using late-night power, characterized in that the blower is driven at a predetermined time before the time. 13. The temperature control means drives the blower by setting the air flow rate in a predetermined time before the time when the maximum temperature is reached to be lower than the air flow rate in the midnight power time zone. 13. The vending machine using late-night power according to claim 12. 14. A storage battery, charging means for charging the storage battery during the midnight power time period, and power for supplying power from the storage battery to each component including the product discharge means during the time period other than the midnight power time period. 14. The vending machine using late-night power according to claim 10, 11, 12 or 13, further comprising a supply means.