JP2574324B2 - Vending machine with induction heating device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vending machine with an induction heating device for inductively heating (HOT selling) canned beverages such as refrigerated or warmed coffee by induction heating. .

2. Description of the Related Art In recent years, there has been proposed a vending machine which applies induction heating as disclosed in Japanese Patent Application Laid-Open No. 53-41295 and instantly heats canned beverages at the time of sale and sells them warm.

This type of vending machine stores canned beverages at a low or normal temperature because preserving canned beverages at a relatively high selling temperature for a long time may cause deterioration and decay of the contents of the beverages. The product is heated instantly and sold at a preset sales temperature.

Problems to be Solved by the Invention However, in the conventional configuration, the sales temperature is constant,
There is a problem that even if the purchaser wants to drink a canned beverage having a higher temperature or a lower temperature, it cannot respond.

In view of the above problems, an object of the present invention is to provide a vending machine with an induction heating device that controls a heating time so as to obtain a selling temperature according to a purchaser's preference.

Means for Solving the Problems In order to solve the above problems, a vending machine with an induction heating device according to the present invention comprises a heating temperature input means for selecting and setting different heating temperatures, and different heating according to the heating temperature. A heating time storage means for storing the time, a heating time determining means for determining the heating time from the heating temperature inputted by the heating temperature input means and the data stored in the heating time storage means, and a control signal from the heating time determining means. And a driving unit for controlling a power supply time to a high-frequency power converter for supplying high-frequency power to the heating coil.

According to the present invention, the sales temperature according to the purchaser's preference is input by the heating temperature input means, and the input is made from the stored data in the heating time storage means storing the different heating times according to the heating temperature. The heating time according to the heating temperature determined by the heating time determination means, the power supply time to the high-frequency power converter that supplies high-frequency power to the heating coil by a control signal from the heating time determination means is controlled by the driving means, The selling temperature of the canned beverage is made variable according to the purchaser's preference.

Embodiment FIG. 1 is a configuration diagram showing one embodiment of the present invention. Reference numeral 1 denotes a heating coil for inductively heating the canned beverage 2, and a commercial power source 3
Is connected to a high-frequency power conversion device 4 that converts the input of the input to a constant high-frequency power. Numeral 5 is a heating temperature input means for selecting and setting different heating temperatures, and comprises an "atsume" setting switch 5a and a "slimy" setting switch 5b.
It is connected to the heating time determination means 6. In addition to the heating temperature input means 5, the heating time determining means 6 has a warm selling switch group 7 and a heating time storage means 8 connected to its inputs, and a driving means 9 for driving the high frequency power converter 4 connected to its output.
Reference numeral 10 denotes a control device, which includes a heating time determination unit 6, a heating time storage unit 8, and a driving unit 9. In the heating time storage means 8, data indicating the relationship between the heating temperature and the heating time shown in the following table is stored.

As shown in the table, the storage data was set to two settings, "Atsume" and "Slimy". For each setting, the heating time "16.0"
Seconds "and" 13.5 seconds "are stored correspondingly. And
If not set, "15.0 seconds" is supported. The hot selling temperature at the right end of the table is as follows: when the insulated canned beverage 2 is heated for a predetermined high-frequency power output from the high-frequency power conversion device 4 for the heating time, “60.0 ° C.”, “54.0 ° C.”, and “58.0
° C ”, indicating that the canned beverage temperature can be increased,
Only the heating time data is stored in the heating time storage means 8. According to the stored data, the selling temperature is 60 ° C. when “Atsume” is set, and the hot selling temperature is 54 ° C. when “Summer” is set.

FIG. 2 shows an example of a specific circuit. The control device 10 shown in FIG. The microcomputer 11 shown here is a CPU, ROM, RAM
And a so-called one-chip microcomputer having an input / output unit. The heating temperature input means 5 and the hot sale switch group 7 are connected to an input section of the microcomputer 11 so as to determine whether or not the switch has been pressed.

On the other hand, the high-frequency power conversion device 4 includes a rectifier 12 for smoothing (converting to DC) the AC input from the commercial power supply 3 and a smoothing capacitor.
13, a resonance capacitor 14 for parallel resonance connected in parallel with the heating coil 1, and a high frequency switching element 15 connected in series to the resonance circuit of the heating coil 1 and the resonance capacitor 14. 1 converts the input of the commercial power supply 3 into a constant high-frequency power and supplies it to perform induction heating of the canned beverage 2. The switching element 15 is connected to an output section of the microcomputer 11 and is turned on and off (switching) by an “on” and “off” signal from the microcomputer 11.
By this switching operation, high-frequency power is generated in the heating coil 1. That is, in order to drive the high-frequency power converter 4, the microcomputer 11 outputs "on" and "off" high-frequency intermittent pulse signals (heating control signals) for a required heating time.

The vending machine with the induction heating device configured as described above will be described with reference to the flowchart of FIG.

First, when one of the warm sale switch groups 7 is turned on,
Heating is started according to the program shown in FIG. 3 stored in a ROM (not shown) in the microcomputer 11 (step 20). Next, the microcomputer 11 takes in the temperature setting signal input to the heating temperature input means 5 (step 21). Next, the stored data (shown in the table) stored in the heating time storage means 8 is sequentially read, and the inputted set temperature is determined (steps 22 and 23). When the inputted set temperature is detected, the heating time corresponding to the detected temperature is read out and determined (step 24). In other words, when the setting is “Atsume”, the heating time is 16.0 seconds (the temperature of the hot sale is 60.0 seconds).
℃), in the case of "slimy", heating time 13.5 seconds (warm selling temperature
54.0 ° C), unless otherwise specified, the heating time is determined to be 15.0 seconds (warm selling temperature 58.0 ° C). During this determined time, the microcomputer 11 outputs a heating control signal of an intermittent pulse of “ON” / “OFF” (step 25), performs high-frequency switching of the switching element 15, and outputs the heating coil 1
To heat the canned beverage 2 by induction, and when the set time is over, the heating control signal is stopped to end the heating (steps 26 and 27). Thereby, the canned beverage 2 is raised to the selling temperature according to the purchaser's preference.

As described above, according to the present embodiment, the heating temperature input means 5 for selecting and setting different heating temperatures, the heating time storage means 8 for storing different heating times corresponding to the heating temperatures, and the heating temperature input means 5 Heating time determining means 6 for determining the heating time from the heating temperature and the data stored in the heating time storage means 8 input by the controller, and the power supply time to the high frequency power converter 4 is controlled by a control signal from the heating time determining means 6. Since the selling temperature of the canned beverage 2 can be changed according to the purchaser's preference, that is, "hot", "slimy", or ordinary can be set by providing the driving means 9 for the canned beverage, the canned beverage may be too hot for the purchaser. In addition, it is possible to prevent the user from feeling that heating is insufficient, and to perform sales at an optimum temperature.

In this example, the heating temperature was set to “
Although three types of "slimy" are used, it is also possible to input more finely in accordance with the purchaser's preference.

Effects of the Invention As described above, the present invention provides a heating temperature input unit that selects and sets different heating temperatures, a heating time storage unit that stores different heating times according to the heating temperature, and a heating temperature input unit that is input by the heating temperature input unit. Heating time determining means for determining the heating time from the stored data in the heating temperature and heating time storage means,
By providing a driving means for controlling the energizing time to the high-frequency power converter by a control signal from the heating time determining means, the selling temperature by induction heating of the canned beverage can be variably set according to the purchaser's preference. It is possible to prevent the purchaser from feeling too hot or underheating, and to sell at the optimum temperature for the purchaser.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a circuit diagram of a main part of the embodiment, and FIG. 3 is a flowchart showing an example of a program for controlling heating time. 1 ... heating coil, 2 ... canned beverage, 4 ... high frequency power converter, 5 ... heating temperature input means, 6 ... heating time determination means, 8 ... heating time storage means, 9 ... drive means.

Continuation of the front page (72) Inventor Takeo Hagimoto 3-22, Takaidahondori, Higashiosaka-shi, Osaka Matsushita Refrigerator Co., Ltd. (56) References JP-A-56-42895 (JP, A) (JP, U) Japanese Utility Model Application Showa 54-23695 (JP, U) US Patent 3,569,656 (US, A)

Claims (1)

(57) [Claims] 1. A heating coil for inductively heating canned beverages housed in a vending machine, a high-frequency power converter for supplying high-frequency power to the heating coil, and heating for selecting and setting different heating temperatures. Temperature input means, heating time storage means storing different heating times according to the heating temperature, heating for determining the heating time from the heating temperature inputted by the heating temperature input means and the data stored in the heating time storage means. A vending machine with an induction heating device, comprising: a time determining means; and a driving means for controlling an energizing time to the high-frequency power converter according to a control signal from the heating time determining means.