JP2000251138A - Cooling device of automatic vending machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce variance in the time when storage chamber articles reach a specific temperature and to stabilize the storage chamber temperatures by forcibly stopping solenoid valves of low temperature in the storage chambers in order for a certain time with the signal from an arithmetic processing part. SOLUTION: The storage chambers 12a, 12b, and 12c are provided with a left in-box temperature detecting means 15a, a center in-box temperature detecting means 15b, and a right in-box temperature detecting means 15c, which detect the temperatures in the respective storage chambers 12a, 12b, and 12c. In this case, the in-box temperature detecting means 15a, 15b, and 15c detect the temperature in the storage chambers 12a, 12b, and 12c and forcibly stop solenoid valves of low storage chamber temperature in order for a certain time with signals from the solenoid valves 16a, 16b, and 16c, a timer, and the arithmetic processing part when the temperatures in the storage chambers 12a, 12b, and 12c rise above the previously set temperature, thereby reducing variance in the time when the storage chamber articles reach the specific temperature.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling device for a vending machine in which a product storage is cooled to sell the product.

[0002]

2. Description of the Related Art In recent years, cooling devices for vending machines have been fully open.
As disclosed in Japanese Patent Application Laid-Open No. 2-4865, when the heater and the refrigerator are stopped by the operation of the thermostat, the fan motor in the refrigerator can also be stopped in synchronization with the stop so as to save power from the problem of energy saving. The system was being adopted.

Hereinafter, an example of a cooling device for a vending machine will be described with reference to the drawings. 16 and 17
, 1 and 2 are power lines, 3 is a refrigerator, 4 is a heater, 5 is a fan motor in the refrigerator, and 6 is a cooler. 7 is a first thermostat for adjusting the temperature inside the refrigerator 3;
Reference numeral 8 denotes a second thermostat for adjusting the temperature of the inside of the heater 4 and reference numeral 9 denotes a thermosynchronous switch. The synchronous switch 9 is a multi-contact type manually operated switch, and its first contact 10 is connected to one of the power supply lines 1 via the first thermostat 7 or the second thermostat 8.
The second contact 11 of the synchronous switch 9 is directly connected to the power supply line.

The operation of the cooling device for a vending machine configured as described above will be described below with reference to FIGS.

First, when the operation mode is selected and the second contact 11 is closed, the internal fan motor 5 continues to operate regardless of the operation of the first thermostat 7 or the second thermostat 8. In addition, the refrigerator 3 is turned on and off by opening and closing the contact of the first thermostat 7,
The heater 4 is turned on by opening and closing the contact of the second thermostat 8.
n-off. On the other hand, the thermosynchronous operation mode is selected, and the operation of the first thermostat 7 or the second thermostat 8 causes the same de-energization as the refrigerator 3 or the heater 4 to be stopped.

[0006]

However, in the above-described conventional configuration, the refrigerator is turned on-off by the thermostat 7.
f, when the temperature in the refrigerator is lowered, there is a large variation until the temperatures in the plurality of refrigerators reach a predetermined temperature,
There was a problem that the time required for all the internal temperatures to reach the predetermined temperature was long.

SUMMARY OF THE INVENTION In view of the above problems, the present invention, when lowering the internal temperature, operates the solenoid valves in order of decreasing the temperature of the thermistor for controlling the internals of the individual chambers until the internal temperature reaches a predetermined temperature. An object of the present invention is to provide a cooling device for a vending machine which stops and reduces variations until the temperatures in a plurality of refrigerators reach a predetermined temperature.

[0008]

SUMMARY OF THE INVENTION In order to achieve this object, the present invention provides a plurality of storage rooms for storing products having a heat insulating structure, a cooler for cooling the storage rooms, and a refrigerant for cooling the coolers. A plurality of solenoid valves for opening and closing the inflow, a fan motor for a cooler for circulating cool air of the cooler in the refrigerator, a temperature detector in the refrigerator for detecting the temperature of the storage chamber, and a comparison with preset temperature data. An arithmetic processing unit for calculating, a solenoid valve control unit for sequentially opening and closing a power supply circuit of the plurality of solenoid valves so as to reach a preset temperature by a signal from the internal temperature detection unit, and the plurality of solenoid valves And a cooling device for a vending machine including a timer for calculating a time for sequentially opening and closing the power supply circuit.

Thus, the electromagnetic valve having a low temperature in the storage room is forcibly sequentially stopped for a certain period of time by a signal from the arithmetic processing section, thereby reducing the variation in the time required for the product in the storage room to reach the predetermined temperature. At the same time, the storage chamber temperature can be stabilized.

[0010] In addition, a timer is provided for controlling the termination of the solenoid valve control means for sequentially opening and closing the power supply circuit of the plurality of solenoid valves.

[0011] Thus, since the solenoid valves are sequentially opened and closed for a certain period of time, it is possible to reduce variations in the time required for the storage room product to reach a predetermined temperature and to stabilize the room temperature.

[0012] Further, the invention is characterized in that the internal temperature detecting means for controlling the termination of the electromagnetic valve control means for sequentially opening and closing the power supply circuit of the plurality of electromagnetic valves at a normal storage chamber temperature is provided.

Thus, since the solenoid valves are sequentially opened and closed at the normal storage room temperature, the time required for the storage room products to reach the predetermined temperature can be reduced, and the room temperature can be stabilized.

[0014] Further, a door opening / closing amount detecting means for detecting the opening / closing amount of the door when the solenoid valve control means for sequentially opening / closing the power supply circuit of the plurality of electromagnetic valves, and a storage unit for storing door opening / closing data. An arithmetic processing unit for comparing a preset door opening / closing amount with the door opening / closing amount data is provided, and the inside-chamber temperature detecting means for controlling with a preset storage room temperature is provided.

[0015] Thus, in order to compare and store the door opening and closing amount set in advance, the solenoid valve at the storage chamber temperature corresponding to the door opening and closing amount is sequentially opened and closed, so that the storage room product reaches a predetermined temperature. Time variation,
The room temperature can be stabilized.

Further, operating state detecting means for detecting the operating state of the cooling device is provided when the electromagnetic valve control means for sequentially opening and closing the power supply circuit of the plurality of electromagnetic valves is provided. It is characterized in that the inside temperature detection means for controlling the temperature of the storage room is provided.

With this arrangement, the storage state is compared with a preset operation state, and the solenoid valve at the storage chamber temperature corresponding to the operation state of the cooling device is sequentially opened and closed, so that the storage room product reaches a predetermined temperature. The time variation can be reduced, and the room temperature can be stabilized.

A sales amount detecting means for detecting the sales amount of the product before the control of the solenoid valve control means for sequentially opening and closing the power supply circuit of the plurality of electromagnetic valves, a storage unit for storing sales amount data, An arithmetic processing unit for comparing the set sales volume with the sales volume data is provided, and when the sales volume data is large, the in-compartment temperature detecting means for controlling at a preset storage room temperature is provided. is there.

In this way, since the sales amount is compared with a preset sales amount and stored, the solenoid valve is sequentially opened and closed at the temperature of the storage room corresponding to the sales amount of the product, so that the time when the storage room product reaches the predetermined temperature varies. And the storage chamber temperature can be stabilized.

Further, when the temperature difference of the inside temperature detecting means again becomes equal to or higher than a preset temperature after the end of the solenoid valve control means for sequentially opening and closing the power supply circuit of the plurality of solenoid valves, the plurality of solenoid valves are controlled. And a solenoid valve control means for sequentially opening and closing the power supply circuit.

With this arrangement, when the inside temperature detecting means again reaches a temperature difference equal to or higher than the preset temperature after the completion of the solenoid valve control means, the storage room product is opened and closed again to sequentially open and close the plurality of solenoid valves. Variations in the time required to reach the predetermined temperature can be reduced, and the temperature of the storage chamber can be stabilized.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a plurality of storage chambers for storing products having a heat insulating structure, a cooler for cooling the storage chamber, and a refrigerant flowing into the cooler. A plurality of solenoid valves for opening and closing, a fan motor for a cooler for circulating cool air of the cooler into the refrigerator, a temperature detector in the refrigerator for detecting the temperature of the storage room, and a comparison operation with preset temperature data. An arithmetic processing unit, a solenoid valve control unit that sequentially opens and closes a power supply circuit of the plurality of solenoid valves so as to reach a preset temperature by a signal from the internal temperature detection unit, It is provided with a timer for calculating the time for sequentially opening and closing the power supply circuit, and has the effect of reducing the variation in the time required for the storage room product to reach a predetermined temperature and stabilizing the storage room temperature.

According to a second aspect of the present invention, in addition to the first aspect of the present invention, a timer for controlling termination of the solenoid valve control means for sequentially opening and closing the power supply circuit of the plurality of solenoid valves is provided. This has the effect of reducing variations in the time required for the storage room product to reach the predetermined temperature and stabilizing the storage room temperature.

According to a third aspect of the present invention, in addition to the first aspect of the present invention, the termination of the solenoid valve control means for sequentially opening and closing the power supply circuit of the plurality of solenoid valves is controlled at a normal storage chamber temperature. The storage room temperature detecting means is provided, and has an effect of reducing the variation in the time required for the storage room product to reach a predetermined temperature and stabilizing the storage room temperature.

According to a fourth aspect of the present invention, in addition to the first aspect, the end of the solenoid valve control means for sequentially opening and closing the power supply circuit of the plurality of solenoid valves is determined by detecting the opening / closing amount of the door. An opening / closing amount detecting means, a storage unit for storing door opening / closing amount data, and an arithmetic processing unit for comparing a preset door opening / closing amount with the door opening / closing amount data are provided, and are controlled by a preset storage room temperature. The storage room temperature detecting means is provided, and has an effect of reducing variations in time required for storage room products to reach a predetermined temperature and stabilizing storage room temperature.

According to a fifth aspect of the present invention, in addition to the first aspect, the operation of detecting the operation state of the cooling device by detecting the end of the solenoid valve control means for sequentially opening and closing the power supply circuit of the plurality of solenoid valves. A condition detecting means provided with the in-compartment temperature detecting means for controlling at a preset storage room temperature when the cooling device is in an energy saving operation state, and a variation in time required for the storage room product to reach a predetermined temperature. While reducing
This has the effect of stabilizing the storage room temperature.

According to a sixth aspect of the present invention, in addition to the first aspect of the present invention, the sales amount of the product before the control of the solenoid valve control means for sequentially opening and closing the power supply circuit of the plurality of solenoid valves is detected. Sales amount detecting means, a storage unit for storing sales amount data, and an arithmetic processing unit for comparing the sales amount data set in advance with the sales amount data. And has a function of reducing variations in the time required for the storage room products to reach a predetermined temperature and stabilizing the storage room temperature.

According to a seventh aspect of the present invention, in addition to the first aspect, after the solenoid valve control means for sequentially opening and closing the power supply circuit of the plurality of solenoid valves is terminated, the inside temperature detection means is again provided. Is provided with an electromagnetic valve control means for sequentially opening and closing the power supply circuit of the plurality of electromagnetic valves when the temperature difference becomes equal to or higher than a preset temperature, and the variation in the time required for the storage room product to reach the predetermined temperature is reduced. This has the effect of reducing the temperature and stabilizing the storage chamber temperature.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a vending machine cooling device according to the present invention will be described below with reference to the drawings. In addition,
The same components as those in the related art are denoted by the same reference numerals, and detailed description is omitted.

(Embodiment 1) FIG. 1 is a configuration block diagram of a vending machine cooling device according to a first embodiment of the present invention, and FIG. 2 is a functional block diagram of a vending machine cooling device.

1 and 2, reference numeral 12a denotes a left storage room,
12b is a middle storage room, and 12c is a right storage room. Each storage room 12a, 12b, 12c has a left cooler 13
a, a middle cooler 13b, and a right cooler 13c are provided, and a fan motor 14a for the left cooler and a fan motor 14 for the middle cooler are provided for blowing the respective coolers 13a, 13b, 13c.
b, a right cooler fan motor 14c is provided.

Each of the storage rooms 12a, 12b, 12
c, each left inside temperature detecting means 15a, each middle inside temperature detecting means 15b, each left inside temperature detecting means 15b.
c is provided, and each storage room 12a, 12b, 1
The temperature of 2c is detected.

Each of the coolers 13a, 13b, 13
A left solenoid valve 16a, a middle solenoid valve 16b, and a right solenoid valve 16c are connected to c, respectively.

Reference numeral 17 denotes the left solenoid valve 16a, the middle solenoid valve 16
b, a timer for counting the stop time of the right solenoid valve 16c. Numeral 18 compares the temperature data set in advance by the arithmetic processing unit with the temperatures detected by the internal temperature detecting means 15a, 15b, 15c. Reference numeral 19 denotes a solenoid valve control means, which receives signals from the arithmetic processing unit 18 to control the solenoid valves 16a and 16a.
b and 16c are opened and closed.

The operation of the cooling device for a vending machine configured as described above will be described below with reference to FIG.

FIG. 3 is a flow chart of the cooling device of the vending machine shown in FIGS. In FIG. 3, each in-compartment temperature detecting means 15a, 15b, 15c
The temperatures of a, 12b, and 12c are detected (STEP 1).
Next, it is determined whether the arithmetic processing unit 18 starts or stops control for sequentially opening and closing the power supply circuit of the solenoid valve (S
TEP2).

If the arithmetic processing unit 18 determines that the control for sequentially opening and closing the power supply circuit of the solenoid valve is to be stopped, the above operations (STEP 1-2) are continued. If the arithmetic processing unit 18 determines to start the control for sequentially opening and closing the power supply circuit of the solenoid valve, the internal temperature detecting means 15
a, 15b, 15c, each storage room 12a, 12b, 1
The temperature difference of 2c is detected (STEP 3), and control for sequentially opening and closing the power supply circuit of the solenoid valve is started (STEP 4). S
Simultaneously with the start of TEP4, the timer 17 for counting the stop time of the left solenoid valve 16a, the middle solenoid valve 16b, and the right solenoid valve 16c operates (STEP5) and ends (STEP5).
6).

When the timer ends, the above operation (ST)
EP1-6) is continued.

As described above, the cooling control device of the vending machine of the present embodiment detects the temperature of each of the storage chambers 12a, 12b, 12c by the internal temperature detecting means 15a, 15b, 15c, When the temperature of the chambers 12a, 12b, 12c becomes higher than a preset temperature, the solenoid valves 16a, 16b, 1
6c, a timer 17, and a signal from the arithmetic processing unit 18, forcibly sequentially stop the solenoid valves having a low temperature in the storage room for a certain period of time to reduce the variation in the time required for the storage room products to reach a predetermined temperature. In addition to reducing the temperature, the storage chamber temperature can be stabilized.

(Embodiment 2) FIG. 4 is a block diagram showing the configuration of a vending machine.

In FIG. 4, reference numeral 17 denotes the left solenoid valve 16
a, a timer for counting the stop time of the middle solenoid valve 16b and the right solenoid valve 16c and controlling the end of the solenoid valve control means 19;

The operation of the cooling device for a vending machine configured as described above will be described below with reference to FIG.

FIG. 5 is a flowchart of the cooling device of the vending machine shown in FIG. In FIG. 5, each of the in-chamber temperature detecting means 15a, 15b, 15c
The temperatures of b and 12c are detected (STEP 1). Next, it is determined whether the arithmetic processing unit 18 starts or stops the control for sequentially opening and closing the power supply circuit of the solenoid valve (STEP 11).
2).

If the arithmetic processing unit 18 determines that the control for sequentially opening and closing the power supply circuit of the solenoid valve is to be stopped, the above operations (STEP 1 and 2) are continued.

If it is determined by the arithmetic processing section 18 that the control for sequentially opening and closing the power supply circuit of the solenoid valve is to be started, a timer 17 for controlling the end of the solenoid valve control means 19 is provided.
Operates (STEP 3). Next, the end of the set time is detected (STEP 4).
Returning to TEP1, the above operations (STEP1 to STEP4) are continued. If the set time has not expired, the storage temperature detection means 15a, 15b, 15c may be used to set each storage room 12a, 12c.
The temperature difference between b and 12c is detected (STEP 5), and control for sequentially opening and closing the power supply circuit of the solenoid valve is started (STEP 5).
6). At the same time as starting STEP4, the left solenoid valve 16a,
The timer 17 for counting the stop time of the middle solenoid valve 16b and the right solenoid valve 16c is activated (STEP 7) and the operation is terminated (STE).
P8).

When the timer for counting the stop time ends, the above operations (STEPs 4 to 8) are continued.

As described above, the cooling device of the vending machine according to the present embodiment detects the temperatures of the storage chambers 12a, 12b, and 12c by the in-compartment temperature detecting means 15a, 15b, and 15c.
When the temperature of each of the storage chambers 12a, 12b, 12c becomes equal to or higher than a preset temperature, the solenoid valves 16a, 16b, 16c
In response to a signal from the timer 17 and the arithmetic processing unit 18, the solenoid valve having a low temperature in the storage chamber is forcibly sequentially stopped for a predetermined time and the solenoid valve control means 19 is continued for a predetermined time. And the temperature of the storage chamber can be stabilized, and the temperature of the storage room can be stabilized.

(Embodiment 3) FIG. 6 is a block diagram showing the configuration of a vending machine.

In FIG. 6, reference numeral 15 denotes an internal temperature detecting means for detecting the temperature of each of the storage chambers 12a, 12b and 12c, and terminating the control of the solenoid valves 16a, 16b and 16c when the temperature exceeds a preset temperature. Is detected.

The operation of the cooling device for a vending machine configured as described above will be described below with reference to FIG.

FIG. 7 is a flowchart of the cooling device of the vending machine shown in FIG. 6. In FIG. 7, each of the in-compartment temperature detecting means 15a, 15b, 15c is provided with each of the storage chambers 12a, 12c.
The temperatures of b and 12c are detected (STEP 1). Next, it is determined whether the arithmetic processing unit 18 starts or stops the control for sequentially opening and closing the power supply circuit of the solenoid valve (STEP 11).
2).

If the arithmetic processing section 18 determines that the control for sequentially opening and closing the power supply circuit of the solenoid valve is to be stopped, the above operations (STEP 1 and STEP 2) are continued.

When it is determined by the arithmetic processing section 18 that the control for sequentially opening and closing the power supply circuit of the solenoid valve is to be started, each of the in-compartment temperature detecting means 15a, 15b, and 15c is operated by each of the storage chambers 12a, 12b, and 12c. A normal inside temperature is detected (STEP 3). Next, the inside temperature detection means 15a, 15b, and 15c confirm the temperature of each of the storage chambers 12a, 12b, and 12c to determine whether the normal control temperature has been reached (STEP).
4). If the temperature has reached the normal control temperature, the process returns to STEP 1 and the above operations (STEPs 1 to 4) are continued. If the normal control temperature has not been reached, the internal temperature detection means 15
a, 15b, 15c, each storage room 12a, 12b, 1
The temperature difference of 2c is detected (STEP 5), and control for sequentially opening and closing the power supply circuit of the solenoid valve is started (STEP 6). S
Simultaneously with the start of TEP4, the timer 17 for counting the stop time of the left solenoid valve 16a, the middle solenoid valve 16b, and the right solenoid valve 16c is activated (STEP7) and terminated (STEP7).
8).

When the timer for counting the stop time ends, the above operations (STEPs 3 to 8) are continued.

As described above, the cooling device of the vending machine of the present embodiment detects the temperatures of the respective storage chambers 12a, 12b, 12c by the in-compartment temperature detecting means 15a, 15b, 15c.
When the temperature of each of the storage chambers 12a, 12b, 12c becomes equal to or higher than a preset temperature, the solenoid valves 16a, 16b, 16c
, A timer 17 and a signal from the arithmetic processing unit 18 forcibly stop the solenoid valves having a low temperature in the storage chamber sequentially for a certain period of time, and control the solenoid valve control means 19 to control the storage chambers 12a, 12b, and 12c. Since the temperature is continued to the normal control temperature, it is possible to reduce the variation in the time required for the storage room product to reach the predetermined temperature and to stabilize the storage room temperature.

(Embodiment 4) FIG. 8 is a configuration block diagram of a vending machine.

In FIG. 8, reference numeral 20 denotes a door opening / closing detecting means, and reference numeral 21 denotes a storage unit for storing door opening / closing amount data. Numeral 18 compares the temperature data set in advance by the arithmetic processing unit with the temperatures detected by the internal temperature detecting means 15a, 15b and 15c, and compares the door opening / closing data with the preset door opening / closing data. Calculate. Reference numeral 19 denotes an electromagnetic valve control unit that opens and closes the electromagnetic valves 16a, 16b, and 16c according to a signal from the arithmetic processing unit 18.

The operation of the cooling device for a vending machine configured as described above will be described below with reference to FIG.

FIG. 9 is a flowchart of the cooling device of the vending machine shown in FIG. In FIG. 9, each of the in-compartment temperature detecting means 15a, 15b, 15c
The temperatures of b and 12c are detected (STEP 1). Next, it is determined whether the arithmetic processing unit 18 starts or stops the control for sequentially opening and closing the power supply circuit of the solenoid valve (STEP 11).
2).

If the arithmetic processing unit 18 determines that the control for sequentially opening and closing the power supply circuit of the solenoid valve is to be stopped, the above operations (STEP 1-2) are continued.

When the arithmetic processing unit 18 determines that the control for sequentially opening and closing the power supply circuit of the solenoid valve is to be started, the door opening / closing amount for a predetermined time is detected by the door opening / closing detecting means 20 and stored in the storage unit 21. Then, the temperature data set in advance by the arithmetic processing unit 18 and the internal temperature detecting means 15
A comparison is made between the temperatures detected in steps a, 15b, and 15c, and a comparison is made between a preset door opening / closing amount and the door opening / closing amount data (STEP 3). Then, the inside temperature of each storage room 12a, 12b, 12c is set according to the opening and closing of the door (STEP 4).

Each of the internal temperature detecting means 15a, 15b, 15
c detects the normal inside temperature of each storage room 12a, 12b, 12c (STEP 5). Next, the inside temperature detection means 15a, 15b, 15c checks the temperatures of the storage chambers 12a, 12b, 12c to determine whether the normal control temperature has been reached (S).
TEP6). If normal control temperature is reached, STE
Returning to P1, the above operation (STEPs 1 to 6) is continued.
If the temperature has not reached the normal control temperature, the temperature in each of the storage chambers 12a, 12b
The temperature difference between b and 12c is detected (STEP 7), and control for sequentially opening and closing the power supply circuit of the solenoid valve is started (STEP 7).
8). At the same time as starting STEP4, the left solenoid valve 16a,
The timer 17 for counting the stop time of the middle solenoid valve 16b and the right solenoid valve 16c is activated (STEP 9), and ends (ST9).
EP10).

When the timer for counting the stop time ends, the above operations (STEPs 5 to 10) are continued.

As described above, the cooling device of the vending machine of the present embodiment detects the temperatures of the respective storage chambers 12a, 12b, 12c by the in-compartment temperature detecting means 15a, 15b, 15c.
When the temperature of each of the storage chambers 12a, 12b, 12c becomes equal to or higher than a preset temperature, the solenoid valves 16a, 16b, 16c
A timer 17 and a door opening / closing amount for a certain period of time detected by the door opening / closing detecting means 20 and stored in the storage unit 21;
The arithmetic processing unit 18 compares the temperature data set in advance with the temperatures detected by the internal temperature detecting means 15a, 15b, 15c, and compares the door opening / closing data set in advance with the door opening / closing data. I do. Then, the inside temperature of each of the storage chambers 12a, 12b, and 12c is set in accordance with the opening and closing of the door, and a signal from the arithmetic processing unit 18 is used to forcibly stop the solenoid valves having a low temperature in the storage chambers sequentially for a predetermined time. In addition, it is possible to reduce variations in the time required for the storage room product to reach the predetermined temperature, and to stabilize the storage room temperature.

(Embodiment 5) FIG. 10 is a block diagram showing the configuration of a vending machine.

In FIG. 10, reference numeral 22 denotes operating state detecting means, and reference numeral 21 denotes a storage unit for storing operating state data. Numeral 18 compares the operation state data set in advance by the arithmetic processing unit with the temperature detected by the in-chamber temperature detecting means 15a, 15b, 15c, and compares the operation state data with the preset one. Numeral 19 denotes a solenoid valve control means which controls the solenoid valve 1 according to a signal from the arithmetic processing unit 18.
6a, 16b and 16c are opened and closed.

The operation of the cooling device for a vending machine configured as described above will be described below with reference to FIG.

FIG. 11 is a flowchart of the cooling device of the vending machine shown in FIG. In FIG. 11, each in-compartment temperature detecting means 15a, 15b, 15c
The temperatures of a, 12b, and 12c are detected (STEP 1).
Next, it is determined whether the arithmetic processing unit 18 starts or stops control for sequentially opening and closing the power supply circuit of the solenoid valve (S
TEP2).

When the arithmetic processing unit 18 determines that the control for sequentially opening and closing the power supply circuit of the solenoid valve is stopped, the above operation (STEP 1-2) is continued.

If it is determined by the arithmetic processing section 18 that control for sequentially opening and closing the power supply circuit of the solenoid valve is to be started, the operating state is detected by the operating state detecting means 22 and stored in the storage section 21. The operating state set in advance by the section 18 and the inside temperature detecting means 15a, 15b, 1
A comparison operation is performed with the temperature detected in step 5c, and an operation state set in advance is compared with the operation state data (STEP 3). And each storage room 1 according to the driving condition
2a, 12b and 12c are set in the refrigerator (STEP
4).

Each of the internal temperature detecting means 15a, 15b, 15
c detects the normal inside temperature of each storage room 12a, 12b, 12c (STEP 5). Next, the inside temperature detection means 15a, 15b, 15c checks the temperatures of the storage chambers 12a, 12b, 12c to determine whether the normal control temperature has been reached (S
TEP6). If the normal control temperature has been reached, ST
Returning to EP1, the above operations (STEPs 1 to 6) are continued. When the normal control temperature is not attained, the storage chambers 12a, 1b, and 1c are detected by the in-chamber temperature detection means 15a, 15b, and 15c.
The temperature difference between 2b and 12c is detected (STEP 7), and control for sequentially opening and closing the power supply circuit of the solenoid valve is started (STEP 7).
8). At the same time as starting STEP4, the left solenoid valve 16a,
The timer 17 for counting the stop time of the middle solenoid valve 16b and the right solenoid valve 16c is activated (STEP 9), and ends (ST9).
EP10).

When the timer for counting the stop time ends, the above operations (STEPs 5 to 10) are continued.

As described above, the cooling device of the vending machine according to the present embodiment detects the temperature of each of the storage chambers 12a, 12b, 12c by the in-compartment temperature detecting means 15a, 15b, 15c.
When the temperature of each of the storage chambers 12a, 12b, 12c becomes equal to or higher than a preset temperature, the solenoid valves 16a, 16b, 16c
, A timer 17 and an operation state detecting means 22
And the data is stored in the storage unit 21 and the arithmetic processing unit 1
In step 8, the operation state data set in advance is compared with the temperatures detected by the in-compartment temperature detecting means 15a, 15b, 15c, and the operation state data set in advance is compared with the operation state data. Then, in order to set the internal temperature of each of the storage chambers 12a, 12b, and 12c in accordance with the operation state, and to forcibly stop the solenoid valves having a low temperature in the storage chambers sequentially for a predetermined time by a signal from the arithmetic processing unit 18. In addition, it is possible to reduce variations in the time required for the storage room product to reach the predetermined temperature, and to stabilize the storage room temperature.

(Embodiment 6) FIG. 12 is a configuration block diagram of a vending machine.

In FIG. 12, reference numeral 22 denotes sales amount detection means, and reference numeral 21 denotes a storage unit for storing sales amount data. 1
Numeral 8 compares the sales amount data set in advance by the arithmetic processing unit with the temperatures detected by the in-chamber temperature detecting means 15a, 15b, 15c, and compares the sales amount data with the preset one. Reference numeral 19 denotes a solenoid valve control means, which receives signals from the arithmetic processing unit 18 to control the solenoid valves 16a and 16a.
b and 16c are opened and closed.

The operation of the cooling device for a vending machine configured as described above will be described below with reference to FIG.

FIG. 13 is a flowchart of the cooling device of the vending machine shown in FIG. In FIG. 13, each in-compartment temperature detecting means 15a, 15b, 15c
The temperatures of a, 12b, and 12c are detected (STEP 1).
Next, it is determined whether the arithmetic processing unit 18 starts or stops control for sequentially opening and closing the power supply circuit of the solenoid valve (S
TEP2).

If the arithmetic processing unit 18 determines that the control for sequentially opening and closing the power supply circuit of the solenoid valve is to be stopped, the above operation (STEP 1-2) is continued.

If it is determined by the arithmetic processing section 18 that the control for sequentially opening and closing the power supply circuit of the solenoid valve is to be started, the sales amount is detected by the sales amount detecting means 22 and stored in the storage section 21. The unit 18 compares the sales amount set in advance with the temperatures detected by the in-chamber temperature detecting means 15a, 15b, 15c, and compares the sales amount set in advance with the sales amount data (STEP).
3). And each storage room 12a, 12 according to the sales amount
The inside temperatures of b and 12c are set (STEP 4).

Each of the internal temperature detecting means 15a, 15b, 15
c detects the normal inside temperature of each storage room 12a, 12b, 12c (STEP 5). Next, the inside temperature detection means 15a, 15b, 15c checks the temperatures of the storage chambers 12a, 12b, 12c to determine whether the normal control temperature has been reached (S).
TEP6). If normal control temperature is reached, STE
Returning to P1, the above operation (STEPs 1 to 6) is continued.
If the temperature has not reached the normal control temperature, the temperature in each of the storage chambers 12a, 12b
The temperature difference between b and 12c is detected (STEP 7), and control for sequentially opening and closing the power supply circuit of the solenoid valve is started (STEP 7).
8). At the same time as starting STEP4, the left solenoid valve 16a,
The timer 17 for counting the stop time of the middle solenoid valve 16b and the right solenoid valve 16c is activated (STEP 9), and ends (ST9).
EP10).

When the timer for counting the stop time ends, the above operations (STEPs 5 to 10) are continued.

As described above, the cooling device of the vending machine according to the present embodiment detects the temperatures of the storage chambers 12a, 12b, and 12c by the internal temperature detecting means 15a, 15b, and 15c.
When the temperature of each of the storage chambers 12a, 12b, 12c becomes equal to or higher than a preset temperature, the solenoid valves 16a, 16b, 16c
, The timer 17, and the sales amount detected by the sales amount detecting means 22 and stored in the storage unit 21, and the sales amount data set in advance by the arithmetic processing unit 18 and the inside temperature detecting means 1
A comparison is made between the temperatures detected in 5a, 15b, and 15c and a sales amount and sales amount data set in advance are calculated. Then, each storage room 12a, 1
2b and 12c are set, and a signal from the arithmetic processing unit 18 is used to forcibly stop the solenoid valve having a low temperature in the storage chamber for a certain period of time sequentially. And the temperature of the storage chamber can be stabilized.

(Embodiment 7) FIG. 14 is a configuration block diagram of a vending machine.

In the figure, reference numeral 17 denotes the left solenoid valve 16
a, the stop time of the middle solenoid valve 16b, the right solenoid valve 16c, the confirmation time when the temperature detected by the inside temperature detecting means 15a, 15b, 15c is lower than a preset temperature, and the inside temperature detecting means 15a, This is a timer for counting the confirmation time when the temperatures detected in 15b and 15c depart from a preset temperature. Reference numeral 18 denotes temperature data set in advance by an arithmetic processing unit and the internal temperature detecting means 15a, 15b, 1
A comparison operation is performed with the temperature detected in step 5c. Reference numeral 19 denotes an electromagnetic valve control unit that opens and closes the electromagnetic valves 16a, 16b, and 16c according to a signal from the arithmetic processing unit 18.

The operation of the cooling device for a vending machine configured as described above will be described below with reference to FIG.

FIG. 15 is a flowchart of the cooling device of the vending machine shown in FIG. In FIG. 15, each of the internal temperature detecting means 15a, 15b, 15c
The temperatures of a, 12b, and 12c are detected (STEP 1).
Next, it is determined whether the arithmetic processing unit 18 starts or stops control for sequentially opening and closing the power supply circuit of the solenoid valve (S
TEP2).

If it is determined by the arithmetic processing section 18 that the control for sequentially opening and closing the power supply circuit of the solenoid valve is to be started, the temperature of each of the storage chambers 12a, 12b, 12c is detected by the internal temperature detecting means 15a, 15b, 15c. Detect the difference (STEP
3) Control for sequentially opening and closing the power supply circuit of the solenoid valve is started (STEP 4). Simultaneously with the start of STEP 4, the timer 17 for counting the stop time of the left solenoid valve 16a, the middle solenoid valve 16b, and the right solenoid valve 16c operates (STEP 5), and ends (STEP 6).

When the timer 17 expires, it is determined whether the restart timer 17 has expired (STEP 17).
7). If the operation has been completed, the above operations (STEPs 1 to 7) are continued. If the operation has not been completed, the operations (STEPs 4 to 7) have been completed.
To continue.

When the arithmetic processing unit 18 determines that the control for sequentially opening and closing the power supply circuit of the solenoid valve is to be stopped, the setting of the confirmation timer 17 is started (STEP 8). When the confirmation timer 17 ends (STEP 9), each of the internal temperature detecting means 15 when all the solenoid valves 16a, 16b, 16c are opened.
a, 15b, 15c are the respective storage rooms 12a, 12b, 12c
Is detected (STEP 10). Then, it is determined whether there is a temperature difference greater than a preset value (STEP 1).
1). If there is no temperature difference, the above operation (STEP 1.2.
8) to 11) are continued. If there is a temperature difference, the setting of the restart timer 17 is started (STEP 12). While the restart timer 17 is operating (STEP 13), the control for sequentially opening and closing the power supply circuit of the solenoid valve is started (STEP 4), and the above operation (STEPs 4 to 7) is continued.
(Steps 1.2.8 to 1)
Continue from 2.4 to 7).

As described above, the cooling device of the vending machine according to the present embodiment detects the temperatures of the storage chambers 12a, 12b, and 12c by the internal temperature detecting means 15a, 15b, and 15c.
When the temperature of each of the storage chambers 12a, 12b, 12c becomes equal to or higher than a preset temperature, the solenoid valves 16a, 16b, 16c
And the confirmation time when the temperature detected by the internal temperature detecting means 15a, 15b, 15c is lower than the preset temperature, and the temperature detected by the internal temperature detecting means 15a, 15b, 15c is longer than the preset temperature. In response to a signal from the timer 17 that counts the confirmation time in the case where the temperature of the storage room is low and the solenoid valve having a low temperature in the storage room is forcibly stopped sequentially for a certain period of time, the storage room product reaches the predetermined temperature. It is possible to reduce the variation in the time of the storage and to stabilize the temperature of the storage room.

[0091]

As described above, according to the present invention, when the temperature of the storage room is higher than the normal control temperature, the solenoid valve having a low temperature in the storage room is forcibly stopped for a certain period of time, so that the product in the storage room can be stopped. Can reduce the variation in the time required to reach the predetermined temperature and stabilize the storage room temperature.

Further, by providing a timer for controlling the termination of the solenoid valve control means for sequentially opening and closing the power supply circuit of the plurality of solenoid valves, the storage room product reaches a predetermined temperature for sequentially opening and closing the solenoid valves for a certain period of time. The time variation can be reduced, and the room temperature can be stabilized.

Further, by providing the in-compartment temperature detecting means for controlling the termination of the solenoid valve control means for sequentially opening and closing the power supply circuit of the plurality of solenoid valves at the normal storage chamber temperature, the electromagnetic valve at the normal storage chamber temperature is provided. Since the valves are sequentially opened and closed, variations in the time required for the storage room products to reach the predetermined temperature can be reduced, and the room temperature can be stabilized.

In addition, since the solenoid valves are sequentially opened and closed at the temperature of the storage room corresponding to the opening and closing amount of the door, the time required for the storage room products to reach a predetermined temperature is reduced, and the room temperature is stabilized. Can be.

Further, since the solenoid valves are sequentially opened and closed at the temperature of the storage room corresponding to the operation state of the cooling device, the time required for the storage room products to reach the predetermined temperature is reduced, and the room temperature is stabilized. be able to.

In addition, since the solenoid valves are sequentially opened and closed at the temperature of the storage room corresponding to the product sales volume, the time required for the storage room products to reach the predetermined temperature can be reduced, and the storage room temperature can be stabilized. it can.

[0097] After the solenoid valve control means is completed, if the temperature difference inside the refrigerator again becomes equal to or higher than a preset temperature, a plurality of storage valves are opened and closed again to sequentially open and close the plurality of solenoid valves. Temperature variation can be reduced, and the storage chamber temperature can be stabilized.

[Brief description of the drawings]

FIG. 1 is a configuration block diagram of a vending machine according to a first embodiment of the present invention.

FIG. 2 is a functional block diagram of the cooling device of the vending machine according to the first embodiment of the present invention.

FIG. 3 is a flowchart of the cooling device of the vending machine according to the first embodiment of the present invention.

FIG. 4 is a functional block diagram of a vending machine cooling device according to a second embodiment of the present invention.

FIG. 5 is a flowchart of a vending machine cooling device according to a second embodiment of the present invention.

FIG. 6 is a functional block diagram of a vending machine cooling device according to a third embodiment of the present invention.

FIG. 7 is a flowchart of a vending machine cooling device according to a third embodiment of the present invention.

FIG. 8 is a functional block diagram of a vending machine cooling device according to a fourth embodiment of the present invention.

FIG. 9 is a flowchart of a vending machine cooling device according to a fourth embodiment of the present invention.

FIG. 10 is a functional block diagram of a cooling device of a vending machine according to a fifth embodiment of the present invention.

FIG. 11 is a flowchart of a vending machine cooling device according to a fifth embodiment of the present invention.

FIG. 12 is a functional block diagram of a vending machine cooling device according to a sixth embodiment of the present invention.

FIG. 13 is a flowchart of a vending machine cooling device according to a sixth embodiment of the present invention.

FIG. 14 is a functional block diagram of a vending machine cooling device according to a seventh embodiment of the present invention.

FIG. 15 is a flowchart of a vending machine cooling device according to a seventh embodiment of the present invention.

FIG. 16 is a configuration block diagram of a cooling device of a conventional vending machine.

FIG. 17 is an electric wiring diagram of a vending machine of a conventional vending machine.

[Explanation of symbols]

 12, 12a, 12b, 12c Storage chambers 13a, 13b, 13c Coolers 14a, 14b, 14c Cooler fan motors 15, 15a, 15b, 15c Internal temperature detecting means 16, 16a, 16b, 16c Solenoid valve 17 Timer 18 Calculation Processing unit 19 Solenoid valve control unit 20 Door open / close detection unit 21 Storage unit 22 Operating state detection unit 23 Storage unit detection unit

Continued on the front page (72) Inventor Hideo Nakajima 4-2-5 Takaida Hondori, Higashi-Osaka City, Osaka Inside Matsushita Refrigerating Machinery Co., Ltd. (72) Inventor Kenzo Oku 4-5-2-5 Takaida Hondori, Higashi-Osaka City, Osaka Prefecture No. Matsushita Refrigeration Co., Ltd. (72) Inventor Morishi Yoshida 4-5-2-5 Takaida Hondori, Higashi-Osaka City, Osaka Prefecture F-term in Matsushita Refrigeration Co., Ltd. DA02 EA01 GA07 HA03 HA07 JA14 LA12 LA18 MA02 NA15 NA16 NA19

Claims (7)

[Claims] 1. A plurality of storage chambers having a heat insulating structure for storing goods, a cooler for cooling the storage chamber, a plurality of solenoid valves for opening and closing the flow of refrigerant into the cooler, and cool air for the cooler. A fan motor for a cooler that circulates the inside of the refrigerator, a refrigerator internal temperature detecting unit that detects the temperature of the storage room, an arithmetic processing unit that performs a comparison operation with preset temperature data, An automatic control comprising a solenoid valve control means for sequentially opening and closing the power supply circuits of the plurality of solenoid valves so as to reach a preset temperature by a signal, and a timer for calculating a time for sequentially opening and closing the power supply circuits of the plurality of solenoid valves. Vending machine cooling system. 2. A vending machine cooling apparatus according to claim 1, further comprising a timer for controlling the end of said solenoid valve control means for sequentially opening and closing a power supply circuit of said plurality of solenoid valves. 3. An automatic storage unit according to claim 1, further comprising: an internal temperature detection unit for controlling the termination of the electromagnetic valve control unit for sequentially opening and closing the power supply circuit of the plurality of electromagnetic valves at a normal storage room temperature. Vending machine cooling system. 4. A door opening / closing amount detecting means for detecting an opening / closing amount of a door when an electromagnetic valve control means for sequentially opening / closing a power supply circuit of a plurality of solenoid valves, and a storage unit for storing door opening / closing data. 2. The apparatus according to claim 1, further comprising: an arithmetic processing unit that compares a preset door opening / closing amount with the door opening / closing amount data; Vending machine cooling system. 5. An operation state detecting means for detecting an operation state of the cooling device when the solenoid valve control means for sequentially opening and closing the power supply circuit of the plurality of electromagnetic valves is provided, and in the case of an energy saving operation state of the cooling device, a predetermined condition is set. 2. The cooling device for a vending machine according to claim 1, further comprising the inside temperature detecting means for controlling the temperature of the storage room. 6. A sales amount detecting means for detecting a sales amount of a product before control of an electromagnetic valve control means for sequentially opening and closing a power supply circuit of a plurality of electromagnetic valves, a storage unit for storing sales amount data,
An arithmetic processing unit for comparing the sales amount data set in advance with the sales amount data is provided, and when the sales amount data is large, the inside temperature detecting means for controlling the storage room temperature at a preset storage room temperature is provided. Item 4. A cooling device for a vending machine according to Item 1. 7. When a temperature difference between the inside temperature detection means and the preset temperature again becomes higher than a predetermined temperature after completion of the solenoid valve control means for sequentially opening and closing the power supply circuit of the plurality of solenoid valves, the plurality of solenoid valves are controlled. 2. A vending machine cooling apparatus according to claim 1, wherein said control means controls electromagnetic valve control means for sequentially opening and closing said power supply circuit.