JPH087826B2 - Vending machine with induction heating device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to canned beverage products such as coffee (hereinafter referred to as canned beverages), which are heated by induction heating at the time of sale (hereinafter referred to as “canned beverages”).
It is related to the induction heating device of a vending machine that is called HOT sales.

2. Description of the Related Art In recent years, there has been proposed an automatic vending machine that applies induction heating technology to induction-heat canned beverages at the time of sale and sells HOT. Each time a can drink enters the heating coil with a cylindrical heating coil, a temperature sensing element such as a thermocouple is used as a temperature detector on the can wall to contact the can body wall where the can drink protrudes from the heating coil. Then, the change in the characteristics of this temperature sensitive element is detected (because the temperature of the beverage inside cannot be detected directly, the temperature of the beverage inside can be indirectly determined to detect the temperature of the beverage inside). In some cases, the induction heating device is stopped when the induction heating is stopped, the contact of the temperature detector is released, and the device is sold at a predetermined temperature.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in such a configuration, the temperature detector comes into contact with or separates from the can wall of the canned beverage, so that the mechanical life is short, or the actual can wall depends on the contact condition of the temperature detector. It may not be possible to detect the temperature correctly.
There was a problem that it could not be sold at the selling temperature. Moreover, the number of canned drinks has increased in recent years, and the conventional 250g length of 133m
With respect to m, the length of 190 g is as short as 105 mm, and the length of 160 cans is as short as 89 mm, and in the case of 160 g cans, there is a problem that the temperature cannot be detected because they are hidden in the heating coil.

In view of the above problems, the present invention provides a vending machine with an induction heating device that detects the temperature of a can wall by a non-contact temperature detector and increases the HOT sales temperature to a certain suitable value regardless of the shape of a canned beverage. The purpose is to

Means for Solving the Problems In order to solve the above problems, the vending machine with an induction heating device according to claim 1 is a can drink of different shape in which an electric insulator is formed into an arc plate shape and the bottom surface is inclined. A cradle for receiving, a heating coil arranged in parallel with the cradle and wound in an arc plate shape for induction heating a canned beverage, and a high-frequency power converter for supplying high-frequency power for induction heating to the heating coil. ,
In the body of the canned beverage induction heated in the cradle, and a temperature detector that detects the temperature of the can wall below the liquid level of the contents beverage in a non-contact manner, and in the canned beverage near the cradle. Diameter and length detection means for detecting diameter and length, and the shape and capacity of the canned beverage are determined by the signal from the diameter and length detection means, and the detection level of the temperature detector is set according to the determination result. Temperature detection level setting means, determination means for determining whether or not the output of the temperature detector has reached the detection level set by the temperature detection level setting means, and the high frequency power conversion based on the determination result by the determination means. And a stop signal generating means for generating a stop signal for stopping the device.

The vending machine with an induction heating device according to claim 2 is
A pedestal for receiving canned beverages having different shapes, which is formed into an arc plate shape with an electric insulator and has a sloping bottom surface, and a heating coil which is provided in parallel with the pedestal and is wound in an arc plate shape for induction heating the canned beverage. A high-frequency power converter for supplying high-frequency power for induction heating to the heating coil, and a can wall below the liquid level of the contents beverage at the body of the can beverage to be induction-heated in the cradle. A temperature detector that detects the temperature in a non-contact manner, a diameter and length detection means that is close to the cradle and detects the diameter and length of the canned beverage, and a canned beverage by a signal from the diameter and length detection means. Temperature detection position changing means for changing the detection position of the temperature detector according to the shape and capacity of the temperature detector, and a judgment means for determining whether the output of the temperature detector has reached a predetermined detection level. , Based on the judgment result by the judging means, It is obtained by a stop signal generating means for generating a stop signal for stopping a wave power converter.

Operation With the above-described configuration, the problem of mechanical life is eliminated by using the non-contact temperature detector, and it is possible to eliminate the case where the actual can wall temperature cannot be correctly detected due to the contact state of the temperature detector. In addition, since the heating coil is changed from the conventional cylindrical shape to an arc plate shape, it cannot be said that a small 160 g can is hidden in the heating coil and the temperature cannot be detected. Further, the vending machine with an induction heating device according to claim 1 detects the temperature of the can wall at a predetermined position of the body of the can beverage being heated by a non-contact temperature detector, and detects the diameter and length by means of a diameter and length detecting means. The shape and capacity of the canned beverage is determined, and the detection level of the temperature detector is set according to the determination result.Therefore, even if the temperature of the canned beverage is different due to the different shape of the canned beverage, the contents of the beverage can be kept at an appropriate HOT. It can be raised to the selling temperature.

The vending machine with an induction heating device according to claim 2 is
Cans of any shape can be determined without changing the detection level of the temperature detector by determining the shape and capacity of the can beverage based on the signal from the diameter and length detection means and changing the detection position of the temperature detector according to the determination result. Even beverages can be heated to a certain appropriate HOT sales temperature.

Example 1 FIG. 1 is a circuit block diagram showing an example of an automatic vending machine with an induction heating device according to claim 1, and FIG. 2 is a schematic configuration diagram of a periphery including a heating coil. 1 and 2
In the figure, reference numeral 1 denotes a heating coil for inductively heating a canned beverage 2, which is wound in a circular arc plate shape so that a cylindrical can wall extends along the heating coil. Three
Converts the low-frequency power from the commercial power source 4 to the heating coil 1
It is a high-frequency power converter that supplies high-frequency power to the. 5
Is a temperature detector for detecting the temperature of the can wall of the body of the canned beverage 2 in a non-contact manner. The temperature detector 5 is a thermopile or the like that converts infrared energy emitted from the can wall into an electric output signal. Further, the temperature detection position in the lengthwise direction of the canned beverage 2 is a water level line like aa ′ shown in FIG. Below the water level line for shaped canned beverages. From this, even if the temperature of the content beverage after heating is the same, if the shape of the canned beverage 2 changes, the temperature of the can wall changes. When the temperature is detected above the water level line, there is no beverage in the can, and the temperature rise of the can wall is detected, so that the temperature becomes unstable and the temperature of the content beverage cannot be detected correctly. Reference numeral 6 is a pedestal for receiving the canned beverage 2 which is an electric insulator and is shaped like an arc plate and whose bottom surface is inclined. Reference numeral 7 is a detecting means for detecting the diameter of the canned beverage 2 being a thick can (φ66 mm) or a thin can (φ53 mm), and 8 and 8 ′ are detecting means for detecting the length of the canned beverage 2. 9 is a means for detecting the diameter and length of the canned beverage 2.
The temperature detection level setting means determines the shape and capacity of the canned beverage 2 based on the signals from 7, 8 and 8'and sets the detection level of the temperature detector 5 according to the determination result. Reference numeral 10 is a determination means for comparing the output signal of the temperature detector 5 with the detection level set by the temperature detection level setting means 9 to determine whether or not a predetermined detection level is reached, and 11 is the determination means.
The stop signal generating means generates a stop signal to stop the high frequency power converter 3 based on the determination result of 10. Reference numeral 12 is a heating control means for operating / stopping the high frequency power converter 3 at a predetermined heating output. The stop signal generating means 11 is connected to the heating control means 12 and inputs the stop signal to the heating control means 12. Further, a HOT sale switch group 13 is connected to the heating control means 12.

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

When the HOT sale (start) signal is input from the HOT sale switch group 13 (step 101), the canned beverage 2 is carried out from the inside of the storage (not shown) into the heating coil 1 (step 102),
Diameter and length detection means 7 for detecting the diameter and length of the canned beverage 2,
The shape and capacity of the canned beverage 2 are determined by 8, 8 '(step 103), and the detection level of the temperature detector 5 is set according to the determination result (step 104). Then, the heating control means 12 operates the high frequency power converter 3 at a predetermined heating output to start heating (step 105). Then, it is determined whether the output of the temperature detector 5 has reached the detection level set by the temperature detection level setting means 9, that is, whether the output has reached a predetermined temperature (step 106). When the set detection level is reached, the stop signal generating means 11 generates a stop signal for stopping the high frequency power converter 3. Upon receiving this stop signal, the heating control means 12 stops the high frequency power converter 3 and ends the induction heating (step 10).
7). Then, the HOT sale is completed (step 108).

As described above, according to the present embodiment, the temperature of the can wall of the body of the canned beverage 2 being heated is detected by the non-contact temperature detector 5, and the diameter and length detecting means 7, 8, 8'are used. Since the shape and capacity of the canned beverage are determined and the detection level of the temperature detector 5 is set according to the determination result, even if the temperature of the canned wall is different due to the different shapes of the canned beverage, the content beverage is kept at a suitable level. It is possible to raise the HOT sales temperature. Further, the problem of mechanical life is eliminated, and the detection variation due to the contact state of the temperature detector can be eliminated, and the heating coil 1
There is no need to say that a small 160g can is hidden in the heating coil and temperature cannot be detected because the conventional cylindrical shape is changed to an arc shape.

FIG. 4 is a circuit block diagram showing one embodiment of the vending machine with an induction heating device according to claim 2, and detailed description of the same parts as those in FIG. 1 will be omitted. Reference numeral 14 is a temperature detection position changing means for judging the shape and capacity of the canned beverage based on the signals from the diameter and length detection means 7, 8, 8'and changing the detection position of the temperature detector 5 according to the judgment result. Yes 15
Is a driving means such as a stepping motor for changing the position of the temperature detector 5 according to the signal from the temperature detection position changing means 14. Reference numeral 10 is a judging means for judging whether or not the output of the temperature detector 5 has reached a predetermined detection level.

Next, the operation of the vending machine with an induction heating device configured as described above will be described with reference to the flowchart of FIG.

When the HOT sale (start) signal is input from the HOT sale switch group 13 (step 101), the canned beverage 2 is carried out from the inside of the storage (not shown) into the heating coil 1 (step 102),
Diameter and length detection means 7 for detecting the diameter and length of the canned beverage 2,
The shape and capacity of the canned beverage 2 are judged by 8, 8 '(step 103), and the detection position of the temperature detector 5 is changed according to the judgment result (step 104). Then heating control means 1
At 2, the high frequency power converter 3 is operated with a predetermined heating output to start heating (step 105). Then, it is judged whether the output of the temperature detector 5 has reached a predetermined detection level, that is, whether it has reached a predetermined temperature (step 10).
6). When the predetermined detection level is reached, the stop position signal generating means 11 generates a stop signal for stopping the high frequency power converter 3. Upon receiving this stop signal, the heating control means 12 stops the high frequency power converter 3 and ends the induction heating (step 107). And complete HOT sale (Step 10
8).

As described above, according to the present embodiment, the temperature of the can wall temperature of the canned beverage 2 being heated is detected by the non-contact temperature detector 5, and the diameter and length detecting means 7, 8, 8'are used. By determining the shape and capacity of the canned beverage and changing the detection position of the temperature detector 5 according to the determination result, the contents of the canned beverage of any shape can be used without changing the detection level of the temperature detector 5. It is possible to raise to a certain appropriate HOT sales temperature. Also, the problem of mechanical life is eliminated, and it is possible to eliminate the detection variation due to the contact state of the temperature detector,
Moreover, since the heating coil 1 is changed from the conventional cylindrical shape to the circular arc plate shape, a small 160 g can is hidden in the heating coil and the temperature cannot be detected.

EFFECTS OF THE INVENTION As described above, as is clear from the examples, the vending machine with an induction heating device of the present invention detects the temperature of the can wall by the non-contact temperature detector, thereby eliminating the problem of mechanical life, It is possible to eliminate the detection variation due to the contact state of the detector, and because the heating coil is changed from the conventional cylindrical shape to an arc plate shape, there is no need to say that a small 160 g can is hidden in the heating coil and the temperature cannot be detected. . The vending machine with an induction heating device according to claim 1 detects the temperature of the can wall of the body of the can beverage being heated by a non-contact temperature detector, and the shape of the can beverage by the diameter and length detecting means. And the capacity is judged and the detection level of the temperature detector is set according to the judgment result, so that even if the can wall temperature is different due to the shape of the canned beverage, the content beverage is raised to a certain appropriate HOT selling temperature. It is something that can be done.

The vending machine with an induction heating device according to claim 2 is
The temperature of the can wall of the body of the canned beverage being heated is detected by a non-contact temperature detector, the shape and capacity of the canned beverage are determined by the diameter and length detection means, and the temperature detector is determined according to the determination result. By changing the detection position of (1), it is possible to raise the content of the canned drink to a certain appropriate HOT selling temperature without changing the detection level of the temperature detector.

[Brief description of drawings]

FIG. 1 is a block diagram of an automatic vending machine with an induction heating device showing an embodiment of the present invention, FIG. 2 is a schematic configuration diagram of a periphery including a heating coil, and FIG. 3 is an automatic induction heating device shown in FIG. It is a flowchart which shows operation | movement of a vending machine. FIG. 4 is a block diagram of a vending machine with an induction heating device showing another embodiment of the present invention, and FIG. 5 is a flow chart showing an operation of the vending machine with an induction heating device of FIG. 1 ... Heating coil, 2 ... Canned beverage, 3 ... High frequency power converter, 5 ... Temperature detector, 6 ... Receptor, 7 ... Detection means for detecting diameter of canned beverage, 8, 8 ' ...... Detection means for detecting the length of canned beverage, 9 ...... Temperature detection level setting means, 10
...... Judgment means, 11 ...... Stop signal generation means, 14 ...... Temperature detection position changing means.

Claims (2)

[Claims] 1. A pedestal for receiving canned drinks having different shapes, which are formed of an electric insulator in the shape of an arcuate plate and whose bottom surface is inclined, and an arcuate plate-shaped member arranged in parallel with the pedestal for inductively heating the canned drink. A heating coil, a high-frequency power converter that supplies high-frequency power for induction heating to the heating coil, and a body of a canned beverage that is induction-heated in the cradle and a liquid level of the content beverage. A temperature detector for detecting the temperature of the lower can wall in a non-contact manner, a diameter and a length detecting means for detecting the diameter and the length of the canned beverage in the vicinity of the cradle, and the diameter and the length detecting means. The temperature detection level setting means for determining the shape and capacity of the canned beverage by the signal and setting the detection level of the temperature detector according to the determination result, and the output of the temperature detector are set by the temperature detection level setting means. Judgment to determine whether the detection level has been reached Stage and, the induction heating device with automatic vending machine, characterized in that a stop signal generating means for generating a stop signal for stopping said high-frequency power conversion device based on the determination result by the determination unit. 2. A pedestal for receiving canned beverages having different shapes which are formed of an electric insulator in the shape of an arcuate plate and whose bottom surface is inclined; Heating coil, a high-frequency power converter for supplying high-frequency power for induction heating to the heating coil, and a body of a canned beverage to be induction-heated in the cradle and a liquid level of the content beverage. A temperature detector for detecting the temperature of the lower can wall in a non-contact manner, a diameter and a length detecting means for detecting the diameter and the length of the canned beverage in the vicinity of the cradle, and the diameter and the length detecting means. A signal for determining the shape and capacity of the canned beverage and changing the detection position of the temperature detector according to the determination result, and a temperature detection position changing means, and determining whether the output of the temperature detector has reached a predetermined detection level. And a determination result obtained by the determination means. Can the high frequency power converter induction heating device with automatic vending machine, characterized in that the device and a stop signal generating means for generating a stop signal for stopping.