JP2725909B2 - Vending machine internal temperature switching device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for switching the temperature inside a vending machine for selling canned beverages and the like.

[0002]

2. Description of the Related Art A vending machine for selling a hot beverage or a cold beverage is configured as shown in FIG. Inside the vending machine surrounded by the vending machine body 1 and the front door 2, an inner box 3 having a heat insulating structure is provided. A product stocker 7 for stacking and stocking canned beverages 6 of commodities is installed in a refrigerator 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 and a condenser 12 are installed at the bottom of the vending machine main body 1.
The condenser 12 and the evaporator 8 form a refrigeration cycle.

[0003] When handling cold beverages,
The refrigeration cycle is operated with the heater 9 turned off, and the evaporator 8 is turned off.
Is cooled by the air flow A passing through the inside. Figure
As shown in FIG.₁ ,14
_Two ,14_Three Divided into 14₁ ~14_Three Product stocker
7 to install hot beverages and cold beverages
In vending machines, 14₁ Has a first evaporator 8₁ And the first
Fan 10₁ 14_Two Has a first sheathed heater 9₁ 
And the second fan 10_Two And the second evaporator 8 _Two 14
_Three Has a third evaporator 8_Three And the third fan 10_Three And the second
Seeds heater 9_Two And the first to third evaporators 8₁ 
~ 8_Three The capillary tube 15₁ ~ 15_Three And through piping 16
Connected to the common compressor 11 and condenser 12 to complete the refrigeration system.
I am making it. 17₁ , 17_Two Is a solenoid valve.

[0004] When the chamber 14 ₂ in a heated state has a first sheathed heater 9 ₁ turns off the solenoid valve 17 ₁ second
Operating the fan 10 _2. When switching the storage room 14 ₂ in the cooling state turns on the solenoid valve 17 ₁ turns off the power supply to the first sheathed heater 9 _1. When switching the storage room 14 ₃ to a warm state cooling state is the same.

[0005] A conventional cold / hot display device provided on the sample display shelf 18 to indicate the distinction between hot beverages and cold beverages for sale is provided with the letters "cold" on the surface as shown in Figs. A first display plate 19 of the indicated thin plate material,
It has a second display panel 20 of a thin plate material on which "hot" characters are 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, and a cold product is provided. As for the column, the first display plate 19 is attached to the support 21,
For hot product columns, the second display panel 20 is a support
Attached to 21.

[0006]

In such a conventional configuration, a staff member manually operates the inside of the refrigerator at the turn of the season.
4 _2, 14 switches the _third and a heated state and cooled state, the first display plate 19 must be replaced with a second display panel 20, to be each time cycle through all of the vending machines in a short period of time It was necessary and very operable.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an internal temperature switching device that can automatically switch between a heating state and a cooling state without manual operation by a staff member.

[0008]

SUMMARY OF THE INVENTION According to the present invention, there is provided a vending machine having a plurality of insides which can switch between a cooled state and a heated state in a warehouse for storing sales commodities. A temperature sensor to be measured, and a control unit that determines switching between a cooling state and a heating state based on temperature information detected by the temperature sensor, and switches between the heating state and the cooling state based on a determination output of the control unit. configured, provided a display switching unit for switching the cold display contents provided in conjunction with the switching to the sample display shelf, the control
Requires cooling operation with temperature information detected by the temperature sensor
The first set temperature and the second set temperature that requires a heating operation
And the detected temperature information of the temperature sensor is the first set temperature.
At the temperature near
If the temperature is low, the inside of the chamber is
When it is determined that the temperature information is equal to or lower than the second set temperature,
Is operated with the inside of the chamber heated, and the temperature
The temperature exceeds the second set temperature and is close to the first set temperature.
If it is judged that it is not the degree, the inside of some chambers is heated
It is configured to be driven .

[0009]

According to this structure, the control unit 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 if necessary. .

[0010] In conjunction with this, the display switching section switches the cold / hot display content provided on the sample display shelf.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 7 and 8 showing the conventional example will be described with the same reference numerals.

FIG. 1 shows an internal temperature switching device according to the present invention.
Here it is performed the switching of-compartment 14 _2, 14 ₃ of the inside temperature. Temperature information detected by the outside air temperature sensor 22 as a temperature sensor for detecting the outside air temperature of the place where the vending machine is installed is taken into the control unit 23 and accumulated sequentially over a certain period (for example, 12 hours). Is done. A first switch 24 ₁ for selecting the power supply of the solenoid valve 17 ₁ into the first sheathed heater 9 _1, second switch 24 for selecting the power supply to the solenoid valve 17 ₂ and the second sheath heater 9 _{2 2} The control unit 23 that executes the switching operation such as described above is configured as shown in FIG.

In step # 1, the average temperature T _A of the accumulated outside temperature information for the past 12 hours is calculated, and in step # 2, the current outside temperature is "increased in temperature" from the tendency of the change in the outside temperature information for the past 12 hours. ”Or“ Temperature is declining ”. # The average temperature T _A obtained in # 1, 3, it is determined whether 20 ° C. or more, in the case of more than 20 ° C. performs cooling processing routine A, if not reached 20 ° C. The heating process routine Execute B.

The cooling processing routine A is configured as shown in FIG. In # 4, it is determined whether or not the average temperature T _A is around 20 ° C., and when it is not around 20 ° C., that is, when it is determined that the outside air temperature is sufficiently high, # 5 is executed to execute the control unit.
23 switches the first and second switches 24 ₁ and 24 ₂ to the solenoid valves 17 _{1 and} 17 ₂
Switch to the side that is energized. As a result, the warehouse 14 ₂ ,
14 ₃ enters the cooling operation state.

If it is determined in step # 4 that the temperature is around 20.degree. C., step # 6 is executed to determine whether the change tendency calculated in step # 2 is "rising" or not. If it is determined, # 5 is executed.

If it is determined in step # 6 that it is not "rising slightly", step # 5 is not executed. If the step # 5 is completed, or if it is determined in the step # 6 that it is not "rising slightly", the process exits the cooling routine A.

The heating processing routine B is configured as shown in FIG. # The average temperature T _A running 7 is determined whether a 20 ° C. vicinity. If the temperature is not around 20 ° C., # 8 is executed to determine whether or not “the average temperature T _A is 10 ° C. or less”. First if not 10 ° C. or less running # 9, the second switch 24 _1, 24 specific side of the _two, for example, where the first switch 24 ₁ Only first sheathed heater 9 ₁ of the storage room 14 ₂ is switched to the side a heated state.

At step # 8, the "average temperature T_A Is below 10 ° C ”
If it is determined that # 1, # 1, and
Switch 24₁ ,twenty four_Two Of the first and second sheathed heaters 9
₁ , 9 _Two Switch to the side of the warehouse 14_Two ,14_Three Warm together
State.

If it is determined in step # 7 that the temperature is close to 20 ° C., step # 11 is executed to determine whether or not the change tendency calculated in step # 2 is “downward”. When it is determined, # 8 is executed.

If it is determined in step # 11 that the flow is not "downward" or if step # 9 or # 10 is executed, the process exits the heating process routine B. Thus average temperature T _A and the control unit 23 first in accordance with the change trend of the times of the outside air temperature, and performing a second switch 24 _1, 24 ₂ of the switching, the internal 14 _{1-14 3}
Switch to the cooling state, switch the inside of the refrigerator 14 ₁ and 14 ₃ to the cooling state, switch the inside of the refrigerator 14 ₂ to the heated state,
4 _{1 is set} to the cooling state, and the insides 14 ₂ and 14 ₃ are switched to the heating state or automatically selected.

Further, the cold and hot indicators 25 ₂ and 25 ₃ which are provided on the sample display shelf 18 and indicate the distinction between the hot beverage and the cold beverage of the commercial products stocked in the refrigerators 14 ₂ and 14 ₃ are provided.
Is composed of a liquid crystal display panel which hot character pattern and cold character pattern is formed, first, in conjunction with the second switch 24 _1, 24 ₂ of the switching, the third as a display switching unit the display of the fourth switch 26 _3, by 26 ₄ "hot" / "cold" is automatically switched. Here, in a 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 operated by the control unit 23. The cold and hot indicators 25 ₂ and 25 ₃ are both switched to the “cold” display state, and the first and second switches 24 ₁ and 24 ₁ are switched.
₂ first, second sheathed heater 9 _1, 9 cold indicator 25 ₂ in a state _{where 2} is the feed, 25 ₃ is switched to the display state are "hot".

As described above, the cooling state and the heating state of the interiors 14 ₂ and 14 ₃ and the display of the cooling temperature of the sample shelf 18 are automatically switched based on the comparison result of the control unit 23. This eliminates the need for any switching work, such as patrol of all vending machines, thereby improving maintenance operability.

In the above embodiment, the temperature table of the sample
The display shows a liquid crystal display panel with a cold / hot indicator 25. _Two ,twenty five_Three Composed
Is a character notation as shown in Fig. 5 instead of the display panel.
The rotating support 29 is rotated by a motor based on an instruction from the controller 23.
A configuration that changes the display by rotating by a specified angle with 30,
Is formed of a translucent acrylic resin or the like as shown in FIG.
The cylindrical body 32 with characters written on the outer peripheral surface is instructed by the controller 23
The display is changed by rotating the motor 33 by the specified angle based on
It can also be configured to be modified. The cylindrical body 32 is
It is arranged on the outer periphery of the fluorescent lamp.

[0024]

As described above, according to the present invention, there is provided a vending machine having a plurality of compartments capable of switching between a cooling state and a heated state in a compartment for storing commercial products, and a temperature sensor for measuring an outside air temperature. A controller for determining switching between a cooling state and a heating state based on temperature information detected by the temperature sensor, wherein the controller is configured to switch between the heating state and the cooling state based on a determination output from the controller, A display switching unit for switching the cold / hot display content provided on the sample display shelf in conjunction with the control unit; and providing the control unit with the detected temperature information of the temperature sensor, the first set temperature at which the cooling operation is required, and the heating operation. Is compared with the required second set temperature, and when the detected temperature information of the temperature sensor is determined to be slightly increased at a temperature near the first set temperature, the inside of the refrigerator is operated in a cooled state. I When it is determined that the detected temperature information of the temperature sensor is equal to or lower than the second set temperature, the inside of the refrigerator is operated in a heated state, and the detected temperature information of the temperature sensor exceeds the second set temperature and is set to the first set temperature. If it is determined that the temperature is not close to the set temperature, the inside of a part of the refrigerator is operated in a heated state, so that there is no need for a staff member to switch around all vending machines one by one. Thus, maintenance operability is improved. Furthermore, at the turn of the cold season, both hot and cold products can be sold, and automatic cold / hot switching in the refrigerator according to the actual sales form can be realized.

[Brief description of the 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 apparatus.

FIG. 3 is a configuration diagram of a cooling processing routine of FIG. 2;

FIG. 4 is a configuration diagram of a heating processing routine of FIG. 2;

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

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

[Explanation of symbols]

9 ₁ , 9 ₂ First and second 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 section 26 ₃ , 26 ₄ Third, 3rd 4 switch [display switching unit]

Claims (1)

(57) [Claims] 1. A vending machine having a plurality of insides which can switch between a cooling state and a heating state in a storage for storing sales products, a temperature sensor for measuring an outside air temperature, and detection temperature information of the temperature sensor. A control unit for determining whether to switch between the cooling state and the heating state based on the determination output of the control unit; and a switching unit for switching between the heating state and the cooling state according to a determination output from the control unit. provided a display switching unit for switching the cold display contents are, before
The controller controls the temperature information detected by the temperature sensor and the cooling operation.
Set temperature that requires heating and second setting that requires heating operation
Temperature, and the detected temperature information of the temperature sensor is set to the first setting.
At a temperature near the constant temperature, the tendency of the change increases and
If it is determined, the inside of the refrigerator is operated in a cooled state and the temperature sensor
It is determined that the detected temperature information is equal to or lower than the second set temperature.
In the case, the inside of the refrigerator is operated in a heated state and the temperature sensor detects
The temperature information exceeds the second set temperature and is close to the first set temperature.
If it is determined that the temperature is not the side temperature, heat some of the compartments
Internal temperature switching device configured to operate in a state .