JPH0512556A - Storage temperature switching device for automatic vending machine - Google Patents

Abstract

PURPOSE:To automatically switch a hot state and a cold state without executing the manual operation of a person in charge. CONSTITUTION:A control part 23 judges information outputted from an ambient temperature sensor 22 to judge the necessity of switching between the cold and hot states, and when the switching is required, switches the 1st and 2nd switches 241, 242 to automatically switch the hot cold and hot states. Interlocking with the switching of the cold and hot states, display switching parts 263, 264 switch the contents of a cold/hot display formed on a sample display rack.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an internal temperature switching device of an automatic vending machine for selling canned beverages.

[0002]

2. Description of the Related Art A vending machine for selling hot beverages or cold beverages is constructed as shown in FIG. An inner box 3 having a heat insulating structure is provided inside the vending machine surrounded by the vending machine body 1 and the front door 2. A product stocker 7 for stacking and stocking canned drinks 6 of products is installed in the interior surrounded by the inner box body 4 and the inner door 5.
An evaporator 8, a sheath heater 9, and a fan 10 are provided at the bottom of the inner box 3, and a compressor 11, a condenser 12, etc. are installed at the bottom of the vending machine body 1, and the compressor 11
The condenser 12 and the evaporator 8 form a refrigeration cycle.

When handling cold beverages, seeds
The heater 9 is turned off to operate the refrigeration cycle, and the evaporator 8
The inside 3 is cooled by the air flow A passing through. Figure
As shown in FIG. 8, the compartment 3 is divided into a plurality of compartments 14 by partition walls 13.₁ ,14
₂ ,14₃ Divided into 14 inside each₁ ~14₃ In product stocker
Install 7 and sell hot and cold beverages automatically
In the vending machine, the inside 14₁ The first evaporator 8₁ And the first
Fan 10₁ 14 inside₂ First sheath heater 9₁ 
And the second fan 10₂ And the second evaporator 8 ₂ 14 inside
₃ The third evaporator 8₃ And the third fan 10₃ And the second
The sheath heater 9₂ And the first to third evaporators 8 are provided.₁ 
~ 8₃ The capillary tube 15₁ ~ 15₃ And through piping 16
Then connect the common compressor 11 and condenser 12 to complete the refrigeration system.
I am making it happen. 17₁ ， 17₂ Is a solenoid valve.

When the chamber 14 _{2 is} to be heated, the solenoid valve 17 ₁ is turned off and the first sheath heater 9 ₁ and the second sheath heater 9 ₁
Drive fan 10 ₂ of. When switching the inside 14 ₂ to the cooling state, the power supply to the _first sheath heater 9 ₁ is turned off and the solenoid valve 17 ₁ is turned on. The same applies to the case of switching the inside 14 ₃ between the heating state and the cooling state.

A conventional cold / hot display device provided on the sample display shelf 18 for displaying whether hot drinks or cold drinks for sale is displayed has a "cold" character on the surface as shown in FIGS. The first display plate 19 of the thin plate material described,
It has a second display plate 20 which is a thin plate material with the word "Hot" written on the surface, and a support 21 is provided on the side of the vending machine corresponding to the arrangement position of each sample. For the column, attach the first display board 19 to the support 21,
For the hot product column, the second display 20 is the support.
It is attached to 21.

[0006]

With such a conventional configuration, a staff member manually operates the inside 1
It is necessary to switch between the heating and cooling states of 4 ₂ and 14 ₃ and to replace the first display board 19 and the second display board 20, and it is possible to cycle through all vending machines in a short period of time. It was necessary and had very poor operability.

It is an object of the present invention to provide an inside temperature switching device capable of automatically switching between a heating state and a cooling state without manual operation by a staff member.

[0008]

SUMMARY OF THE INVENTION An internal temperature switching device of the present invention is an automatic vending machine capable of switching the inside of a storage for storing products for sale between a cooling state and a heating state, and a temperature sensor for measuring an outside air temperature, A control unit for determining switching between the cooling state and the heating state based on temperature information detected by the temperature sensor is provided, and the heating state and the cooling state are switched according to the determination output of the control unit. It is characterized in that a display switching unit for switching the contents of the cold temperature display provided on the sample display shelf is provided in conjunction therewith.

[0009]

According to this structure, the control section determines the necessity of switching between the heating state and the cooling state based on the outside air temperature information collected from the temperature sensor, and automatically switches when the switching is required. ..

In conjunction with this, the display switching unit switches the contents of the cold temperature display provided on the sample display shelf.

[0011]

Embodiments of the present invention will be described below with reference to FIGS. It should be noted that the same reference numerals are given to those having the same operations as those in FIGS. 7 and 8 showing the conventional example.

FIG. 1 shows the internal temperature switching device of the present invention.
Here, the internal temperatures of the internal compartments 14 ₂ and 14 ₃ are switched. Temporary temperature information detected by the outside air temperature sensor 22 as a temperature sensor that detects the outside air temperature of the place where the vending machine is installed is taken into the control unit 23 and sequentially stored for a certain period (for example, 12 hours). To be done. A first switch 24 ₁ for selecting power supply to the solenoid valve 17 ₁ and the first sheath heater 9 ₁ , and a second switch 24 ₂ for selecting power supply to the solenoid valve 17 ₂ and the second sheath heater 9 ₂ . The control unit 23 that executes the switching operation such as the above is configured as shown in FIG.

In # 1, the average temperature T _A of the accumulated outside air temperature information for the past 12 hours is calculated, and in # 2, the current outside air temperature "is likely to rise due to the tendency of the change in the outside air temperature information for the past 12 hours. It is calculated whether it is "" or "is the temperature slightly lower". In # 3, it is determined whether or not the average temperature T _A obtained in # 1 is 20 ° C. or higher. If it is 20 ° C. or higher, the cooling process routine A is executed. If it has not reached 20 ° C., the heating process routine is executed. Execute B.

The cooling processing routine A is constructed as shown in FIG. In # 4, it is determined whether or not the average temperature T _A is around 20 ° C. If it is not around 20 ° C., that is, if it is determined that the outside air temperature is sufficiently high, # 5 is executed and the control unit
23 is a solenoid valve 17 _1, 17 _{2 for the first and second} switches 24 ₁ , 24 _2.
Switch to the side that energizes. As a result, the internal 14 _2,
Both 14 ₃ are in the cooling operation state.

When it is determined in # 4 that the temperature is near 20 ° C., # 6 is executed to determine whether or not the change tendency calculated in # 2 is “upward”, and it is “upward”. If it is determined, # 5 is executed.

If it is determined in # 6 that it is not "raised", # 5 is not executed. When # 5 is completed, or when it is determined in # 6 that “the temperature is not rising”, the cooling processing routine A is ended.

The heating processing routine B is constructed as shown in FIG. # 7 is executed to determine whether the average temperature T _A is near 20 ° C. When it is not near 20 ° C., # 8 is executed to determine whether “the average temperature T _A is 10 ° C. or less”. If the temperature is not lower than 10 ° C, # 9 is executed to set only the first side of the first and second switches 24 ₁ and 24 ₂ to the specified side, for example, the first switch 24 ₁ of the first sheath heater 9 ₁ . the storage room 14 ₂ is switched to the side a heated state.

In # 8, the "average temperature T_A Is 10 ° C or less ”
If it is determined that # 10 is executed, the first and second switches are executed.
Switch 24₁ ,twenty four₂ Both of the first and second sheath heaters 9
₁ , 9 ₂ Switch to the side of the inside 14₂ ,14₃ Warm together
Put in a state.

If it is determined in # 7 that the temperature is near 20 ° C., # 11 is executed to determine whether the change tendency calculated in # 2 is “downward”, and it is “downward”. When it is determined, # 8 is executed.

When it is determined in # 11 that the temperature is not "falling" or when # 9 or # 10 is executed, the heating process routine B is exited. In this way, the control unit 23 switches the first and second switches 24 ₁ and 24 ₂ in accordance with the average air temperature T _A and the changing tendency of the outside air temperature at each time, and the insides of the refrigerator 14 _{1 to} 14 ₃
To the cooling state, or to cool the insides 14 ₁ and 14 ₃ to the cooling state and to change the inside 14 ₂ to the heating state.
With 4 ₁ in the cooling state, the chambers 14 ₂ and 14 ₃ are switched to the heating state or automatically selected.

Further, a cold temperature indicator 25 ₂ , 25 ₃ provided on the sample display shelf 18 and displaying the hot beverage and the cold beverage of the sold products stocked in the compartments 14 ₂ , 14 ₃ is displayed.
Is composed of a liquid crystal display panel on which a hot character pattern and a cold character pattern are formed, and in association with the switching of the first and second switches 24 ₁ and 24 _2, a third display switching section is provided. The display of "hot" / "cold" is automatically switched by the fourth switches 26 ₃ and 26 ₄ . Here, in the state where the first and second switches 24 ₁ and 24 ₂ are supplying power to the solenoid valves 17 ₁ and 17 ₂ , the third and fourth switches 26 ₃ and 26 ₄ are turned on by the instruction of the control unit 23. The cold temperature indicators 25 ₂ and 25 ₃ are both switched to the “cold” display state by switching the first and second switches 24 ₁ and 24 3.
_{When 2} is supplying power to the first and second sheathed heaters 9 ₁ and 9 ₂ , both the cold temperature indicators 25 ₂ and 25 ₃ are switched to the “hot” display state.

[0022] Since the cold display controller compartment 14 ₂ based on the comparison result of the 23, 14 ₃ of the cooling state and the warm state and the sample rack 18 is automatically switched, clerk in a conventional manner Maintenance workability is improved because there is no need for switching work to go around all vending machines.

In the above-described embodiment, the temperature table for the sample shelf 18 is shown.
Shown is a liquid crystal display panel, which is a temperature indicator 25. ₂ ,twenty five₃ Configured
Instead of the display panel, notation of characters as shown in Fig. 5
Based on the instruction from the control unit 23, the rotary support 29
The structure that changes the display by rotating the specified angle at 30
Is made of translucent acrylic resin as shown in Fig. 6.
The cylindrical body 32 with characters written on the outer peripheral surface is instructed by the control unit 23.
The display is changed by rotating the motor 33 by a specified angle based on
It can also be configured to add. The cylindrical body 32 is
It is arranged on the outer peripheral portion of the fluorescent lamp 34.

[0024]

As described above, according to the present invention, a temperature sensor for measuring the outside air temperature is provided in an automatic vending machine which can switch the inside of a store for storing products to be cooled and heated.
A control unit for determining switching between the cooling state and the heating state based on temperature information detected by the temperature sensor is provided, and the heating state and the cooling state are switched according to the determination output of the control unit. Since a display switching unit that switches the contents of cold and hot display provided on the sample display shelf in conjunction with it is not required, the switching work such as the staff having to go around all the vending machines one by one is unnecessary, and the maintenance operability is improved. It is a thing.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an internal temperature switching device of the present invention.

FIG. 2 is a configuration diagram of a main part of a control unit of the device.

FIG. 3 is a configuration diagram of a cooling processing routine of FIG.

FIG. 4 is a configuration diagram of a heating processing routine of FIG.

FIG. 5 is a perspective view of a main part of the cold / heat display device.

FIG. 6 is a perspective view of a main part of a cold temperature display device according to another embodiment.

FIG. 7 is a vertical sectional view of the vending machine.

FIG. 8 is a horizontal sectional view of the vending machine.

FIG. 9 is a plan view of a conventional cold temperature display device.

FIG. 10 is a front view of the cold temperature display device.

[Explanation of symbols]

9 ₁ , 9 ₂ 1st, 2nd sheathed heaters 14 ₁ , 14 ₂ , 14 ₃ Inside 17 ₁ , 17 ₂ Solenoid valve 18 Sample display shelf 22 Outside air temperature sensor 23 Control part 26 ₃ , 26 ₄ 3rd, 3rd Switch 4 (display switching section)

Claims (1)

Claim: What is claimed is: 1. A vending machine, which is capable of switching between a cooling state and a heating state inside a store for storing products to be sold, includes a temperature sensor for measuring an outside air temperature and temperature information detected by the temperature sensor. A control unit that determines whether to switch between the cooling state and the heating state based on the above is configured to switch between the heating state and the cooling state based on the determination output of the control unit, and is provided on the sample display shelf in conjunction with the switching. Internal temperature switching device provided with a display switching unit for switching the displayed contents of the cold temperature.