JP2001118138A - Heater of beverage in container and vending machine of beverage provided with it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To precisely control temperature without regard to the primary temperature and heat capacity of a container housing a beverage by rapidly heating the beverage in the container. SOLUTION: This heater of a beverage in a container is provided with a container holding means 7, which is in the form of a bottomed cylinder for making. warm water and a beverage container 6 in contact with each other by the opening part of a side face and holds the container 6 within a tank 2 so that the top surface part of the container 6 may be projected on the surface of the hot water within the tank, a rotation means mainly comprising a motor 18 for rotating and moving the means 7 holding the container 6, an infrared sensor 21 for detecting infrared rays irradiated upward from the top surface of the container 6 and a beverage heating controlling means which stops driving of the motor 18 at the time of detecting that the temperature of the beverage becomes a heating target temperature based on the detecting result of the sensor 21 and buzzing to report the finish of heating. Thus, the beverage in the container 6 is heated rapidly, thereby temperature control is precisely executed without regard to the primary temperature and heat capacity of the container 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for heating a beverage in a container for heating a beverage in a container such as a canned beverage or a PET bottled beverage in a short time at the time of sale, and to a beverage vending machine provided with the device.

[0002]

2. Description of the Related Art As a method for heating a beverage in a can in a short period of time, there is a method using induction heating or hot water decay. Technologies aiming at quality improvement and energy saving are disclosed.

[0003] For example, one method of heating canned beverages by induction heating is described in Japanese Patent Application Laid-Open No. 7-325971. Japanese Patent Application Laid-Open No. 7-325971 heats a canned beverage rapidly by an induction heating coil and provides a radiation temperature sensor (infrared sensor) for detecting the surface temperature of the can in a non-contact manner. The temperature is detected, and accurate temperature control is performed irrespective of the initial temperature of the canned beverage and the heat capacity depending on the size of the canned container and the type of the content beverage.

[0004] As a method of heating canned beverages by hot water bathing, there is a method described in JP-A-5-342471. The apparatus described in Japanese Patent Application Laid-Open No. 5-342471 is provided with a hot tub for heating canned beverage, and means for vibrating the canned beverage in the hot tub, and automatically supplies the canned beverage to the hot tub. After the elapse of a predetermined time, the stored product is heated in a short time by discharging the canned beverage to the outside of the hot tub so that the quality is not deteriorated regardless of the material of the metal can and the manufacturing method. Does not use high heat that degrades product quality, and uses a power source similar to a home power source.

[0005]

However, in the conventional heating method described in Japanese Patent Application Laid-Open No. 7-325971, large power (for example, AC2) is used to shorten the heating time.
When a 100 V AC power supply, which is a normal household power supply, is used, only about 1 kW of power can be obtained even with efficient heating, and the heating time is prolonged. Would. Also, only metal cans can be used, and depending on the material of the metal can (steel can or aluminum can), the method of manufacturing the can (weld can or adhesive can), or the shape, the heating efficiency may be significantly different or uneven heating may occur. There is.

Further, in the conventional heating method described in Japanese Patent Application Laid-Open No. 5-342471, a canned beverage is vibrated in a hot water bath, but a sufficient stirring effect of the contents cannot be obtained only by simple vibration. It takes a long time to heat, and furthermore, it vibrates the canned beverage in a hot water bath, so it is difficult to directly detect the temperature of the canned beverage or to use a non-contact infrared sensor because of the warm water. There was a problem that accurate temperature control could not be performed due to differences in initial temperature and heat capacity.

The present invention solves the above-mentioned conventional problems. Even with an AC 100 V power supply, the beverage in the container can be rapidly heated regardless of the material, manufacturing method, and shape of the container containing the beverage. An object of the present invention is to enable accurate temperature control irrespective of the initial temperature and heat capacity of a container containing a beverage.

[0008]

In order to achieve this object, the present invention comprises rotating a container containing a beverage in a liquid heated to a predetermined temperature so that the top surface of the container is not wetted. Thereby, the temperature is controlled based on the infrared rays emitted from the top surface of the container and detected without passing through the liquid.

Thus, even with an AC 100 V power supply, regardless of the material, manufacturing method, and shape of the container containing the beverage,
The beverage in the container can be rapidly heated, and accurate temperature control can be performed regardless of the initial temperature and heat capacity of the container containing the beverage.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION
A heating device for the beverage in a container, a tank for storing the liquid, a liquid heating means for heating the liquid in the tank to a predetermined temperature, and a top surface portion of the container containing the beverage in which the liquid level in the tank is above the liquid level. Container holding means for holding the container in the tank so that the container and the liquid can exchange heat with each other, and rotating the container holding means for holding the container containing the beverage substantially vertically. Rotating means for rotating about an axis, infrared detecting means arranged at a position above the container facing the top surface of the container and detecting infrared light radiated upward from the top surface of the container, and the infrared light Beverage heating control means for controlling the heating of the container based on the detection result of the detection means, wherein the container containing the beverage is rotated in the liquid heated to a predetermined temperature, and the heat with the liquid is increased. Heat by replacement Thus, even with an AC 100V power supply, the beverage in the container can be rapidly heated regardless of the material, manufacturing method, and shape of the container containing the beverage, and the infrared rays radiated from the top surface of the container can be used to convert the liquid into liquid. Since the temperature can be directly detected without any intervention, the top surface temperature of the container can be accurately detected, and an accurate temperature control can be performed regardless of the initial temperature or heat capacity of the container containing the beverage.

According to a second aspect of the present invention, in the first aspect of the present invention, the liquid is brought into contact with the container by means of an opening on a side surface of the container holding means which has a larger inner diameter than the outer diameter of the container and opens into the liquid. It has a cylindrical shape or a cage shape with a bottom. In addition to the operation of the invention described in claim 1, the liquid except for the top surface portion of the container comes into contact with the liquid and opens into the liquid of the container holding means. Since the liquid in the tank is stirred by the rotation of the opening on the side, the heating efficiency of the container is improved.

According to a third aspect of the present invention, in addition to the second aspect of the present invention, the rotation of the container holding means is connected to the upper end of the container holding means which is above the level of the liquid in the tank. An opening / closing lid that rotates in conjunction with an opening / closing lid supporting shaft that rotatably supports the opening / closing lid as a center axis of rotation of the opening / closing lid, and an infrared detection unit is disposed in the opening / closing lid supporting shaft. In addition to the function of the invention according to claim 2, the opening / closing lid support which serves as a central axis of rotation of the container holding means and the opening / closing lid in a space surrounded by the upper end portion of the container holding means and the opening / closing lid. Since it is located inside the shaft, it is difficult for liquid to enter between the infrared detection means and the top of the container, and the top surface temperature of the container can be detected more accurately. Independently accurate temperature It has an effect of enabling the control.

According to a fourth aspect of the present invention, a beverage vending machine is provided with the apparatus for heating a beverage in a container according to any one of the first to third aspects. In addition to the effect of the invention, the present invention has an effect that the transfer of the container to the heating device and the removal of the container from the heating device can be performed automatically.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1) FIG. 1 is a schematic vertical sectional view showing a state in which a hatch is closed in a heating apparatus for a container-containing beverage according to a first embodiment of the present invention, and FIG. FIG. 3 is a schematic longitudinal sectional view of the heating device with a hatch opened.

In FIGS. 1 and 2, reference numeral 1 denotes a main body of a heating device, which comprises a tank 2 for storing about 4 liters of hot water and a hatch 3. The tank 2 and the hatch 3 are connected by a hinge 4 and open and close 90 degrees. Reference numeral 5 denotes a heater for heating the hot water, and the temperature of the hot water is constantly controlled to 95 ° C. by a thermistor and hot water temperature control means described later.

Reference numeral 6 denotes a beverage container, which will be described as a canned beverage in this embodiment. Numeral 7 is a container holding means for holding the beverage container 6 in the tank 2, and is made of a cylindrical metal having an inner diameter larger than the maximum diameter of various beverage containers. Further, the upper end of the container holding means 7 is arranged so as to be at a position higher than the liquid level of the hot water.

Reference numeral 8 denotes a float which moves up and down inside the container holding means 7. Reference numeral 9 denotes a bottom plate that raises and lowers the beverage container 6 in accordance with lifting and lowering of the float 8. Reference numeral 10 denotes a bottom support shaft provided on the center axis of the bottom of the container holding means 7 and rotatably supported by a bottom bearing 11 provided on the bottom of the tank 2.

Reference numeral 12 denotes a cylindrical bearing for supporting the cylindrical container holding lower stage 7, which is fixed to an opening provided in the upper part of the tank 2. Reference numeral 13 denotes a container holding side coupling provided on the upper end circumferential portion of the container holding means 7, which is connected to an opening / closing lid side coupling 14 described later when the hatch 3 is closed by rotating the container holding means 7 when the hatch 3 is closed. .

Reference numeral 15 denotes an opening / closing lid for covering the upper surface of the container holding means 7 when the hatch 3 is closed, and an opening / closing lid-side coupling 14 is provided on a circumferential portion. Reference numeral 16 denotes an opening / closing lid support shaft provided on the central axis of the opening / closing lid 15, one end of which is attached to the opening / closing lid 15 via an opening / closing lid bearing 17, and the other end is fixed to the hatch 3.

Reference numeral 18 denotes a motor which is a main component of the rotating means.
It is attached to hatch 3. The torque of the motor 18 is transmitted to the opening / closing lid 15 via the pulley 19 and the belt 20. The rotational force of the opening / closing lid 15 is transmitted to the container holding means 7 by a coupling, and the opening / closing lid 15 and the container holding means 7 rotate simultaneously.

Reference numeral 21 denotes an infrared sensor which is an infrared detecting means disposed in the opening / closing lid support shaft 16, and
Is inserted, the hatch 3 is closed, the top surface of the beverage container 6 is opposed, and infrared light emitted from the top surface is detected to measure the temperature of the content beverage.

At this time, since the beverage container 6 is subjected to a pressure to be pushed upward by the float 8, the top surface of the beverage container 6 is pressed against the opening / closing lid 15 at a position higher than the level of the hot water, and the infrared rays Hot water is prevented from entering between the sensor 21 and the top surface of the beverage container 6.

Reference numeral 22 denotes a lock mechanism for locking and unlocking the hatch 3. It is composed of an inverted L-shaped hook and a spring. In the present embodiment, the lock mechanism 22 is manually operated to open and close the hatch 3.

When the hatch 3 is opened, the beverage container 6 is pushed up by the buoyancy of the float 8, so that the beverage container 6 after the heating is completed can be easily taken out.

FIG. 3 is a side view showing the structure of the container holding means 7 used in the apparatus for heating a beverage in a container according to the present embodiment. FIG. 4 shows the container holding means 7 cut along the line AA ′ in FIG.
FIG.

3 and 4, reference numeral 23 denotes a container holding means 7.
A large area is open to warm water at a plurality of openings formed by cutting out the side surfaces of the column. Therefore, the beverage container 6 comes into contact with the hot water while being held by the container holding means 7.

Reference numeral 24 denotes a slit provided on the side surface of the column, and serves as a guide through which a projection 25 provided on the outer edge of the bottom plate 9 passes vertically. Since the projections 25a and 25b of the bottom plate 9 protrude outside the slits 24a and 24b of the container holding means 7, the bottom plate 9 also rotates simultaneously with the rotation of the container holding means 7.

FIG. 5 is a block diagram showing a control system of the apparatus for heating a beverage in a container according to the present embodiment. In FIG.
A lock SW 26 outputs a lock signal in conjunction with the lock mechanism 22 when the hatch 3 is closed. Numeral 27 denotes a beverage heating control means, which detects a beverage temperature by inputting a detection signal of the infrared sensor 21 in the locked state, and sets a motor 18 until the heating target temperature (set to 55 ° C., which is the temperature at which hot beverages can be drunk) is reached. Is driven to rotate the beverage container 6 in warm water to heat the beverage. Then, when the temperature reaches the heating target temperature of 55 ° C., the motor 18 is stopped and the buzzer 28 is sounded to notify the end of the heating.

Reference numeral 29 denotes a thermistor provided in the tank 2 for detecting the temperature of hot water. Numeral 30 denotes hot water temperature control means for controlling energization of the heater 5 so that the temperature of the hot water is always about 95 ° C. When the temperature of the hot water is 80 ° C. or lower, the heating time of the beverage becomes longer. Therefore, the hot water controller 30 outputs a signal for suspending the heating of the beverage until the temperature of the hot water recovers to 95 ° C. 27. The liquid heating means 31 includes a heater 5, a thermistor 29, and a hot water temperature control means 30.
It is composed of

The power supply of the heating apparatus is AC100V.
(15A), and a household outlet can be used.

The operation of the apparatus for heating beverage in a container constructed as described above will be briefly described.

First, the lock is released and the hatch 3 is opened, and the beverage container 6 is inserted into the container holding means 7.
Close and lock. Thereafter, the temperature of the beverage is detected by the infrared sensor 21. If the temperature is 55 ° C. or lower, the motor 18 is driven to heat the beverage. Since the beverage container 6 rotates in warm water (95 ° C.), heat transfer from the warm water to the contents drink is promoted, and the contents drink is also agitated, so that the drink is rapidly heated. When the beverage temperature reaches 55 ° C., the drive of the motor 18 is stopped and the buzzer 28 is sounded to notify the end of the heating. When the heating is completed, the lock is released, the hatch 3 is opened, and the beverage container 6 heated to a temperature suitable for drinking is taken out.

FIG. 6 is a characteristic diagram showing the heating characteristics of the heating device for beverage in a container according to the present embodiment.

In this heating apparatus, the time required to heat a canned beverage (340 g) having an initial temperature of 5 ° C. to 55 ° C. is about 20 seconds, and the rotation speed of the container holding means 7 (the rotation speed of the beverage container 6) is as follows. It is about 1500 rotations. At this time, the calorie applied to the canned beverage was calculated to be about 3.5 kW of electric power.
This corresponds to the energy applied for 0 seconds.

As described above, in the present embodiment, the heating device for the beverage in a container is provided with the tank 2 for storing hot water, the tank 2
The liquid heating means 31 for heating the hot water in the inside to a predetermined temperature (95 ° C.), and the inside of the beverage container 6 having an inner diameter larger than the outer diameter and opening of the side surface opened into the warm water allow the warm water and the beverage container 6 to contact each other. The beverage container 6 is formed in a cylindrical shape with the upper end protruding above the level of the hot water in the tank 2 and the top surface of the beverage container 6 rising above the level of the hot water in the tank 2. A container holding means 7 for holding the inside of the container 2, a motor 18 for rotating the container holding means 7 for holding the beverage container 6 about a substantially vertical rotation axis, and a container holding means 7; An opening / closing lid 15 connected to the upper end and rotating in conjunction with the rotation of the container holding means 7, and an opening / closing lid supporting shaft 1 serving as a central axis of rotation of the opening / closing lid 15 and rotatably supporting the opening / closing lid 15.
6 and an infrared sensor 21 disposed in the opening / closing lid support shaft 16 facing the top surface of the beverage container 6 above the beverage container 6 and detecting infrared rays radiated upward from the top surface of the beverage container 6. When it is detected that the beverage temperature has reached 55 ° C. based on the detection results of the detection means and the infrared detection means, the drive of the motor 18 is stopped and the beverage container 6 is stopped.
Is stopped by rotating the container holding means 7 and sounding the buzzer 28 to notify the end of the heating. The beverage heating control means 27 is used to heat the beverage container 6 to a predetermined temperature (95 ° C.). By rotating in hot water and heating by heat exchange with hot water, the beverage in the container can be rapidly heated, irrespective of the material, manufacturing method and shape of the beverage container 6 even with an AC 100 V power supply, , Beverage container 6
Infrared rays emitted from the top surface of the beverage container 6 can be directly detected without passing through hot water, so that the top surface temperature of the beverage container 6 can be accurately detected,
There is an effect that accurate temperature control can be performed regardless of the initial temperature and heat capacity of the beverage container 6.

The hot water in the tank 2 is stirred by rotating the opening 23 of the side surface of the beverage container 6 excluding the top surface portion, which is open to the warm water, of the container holding means 7 by contact with the warm water. Therefore, there is an effect that the heating efficiency of the beverage container 6 is improved.

Further, the infrared detecting means including the infrared sensor 21 is provided in the space surrounded by the upper end portion of the container holding means 7 and the opening / closing lid 15.
Is arranged in the opening / closing lid support shaft 16 which is the center axis of the rotation of the container, so that it becomes difficult for hot water to enter between the infrared sensor 21 and the top surface of the beverage container 6, and the temperature of the top surface of the beverage container 6 can be more accurately adjusted. There is an effect that it can be detected.

In the present embodiment, the container holding means 7 has a cylindrical shape with a bottom having an opening 23 on the side surface.

Further, one end of the opening / closing lid support shaft 16 may be fixed to the opening / closing lid 15, and the other end may be attached to the hatch 3 via a bearing.

Further, the container holding means 7 of the present embodiment
Although the beverage container 6 was configured to be held therein,
The same effect can be obtained even with a structure in which the beverage container 6 is gripped.

(Embodiment 2) FIG. 7 is a schematic front view of a beverage vending machine provided with a heating device for a beverage in a container according to Embodiment 2.

In FIG. 7, reference numeral 32 denotes a beverage vending machine;
3 is a display dummy, 34 is a coin slot, 3
5 is a return lever, and 36 is a change take-out port. Three
7 and 38 are selection buttons. The upper selection button 37 can select a cold beverage, and the lower selection button 38 can select a hot beverage. Reference numeral 39 denotes an outlet for taking out the selected canned beverage.

FIG. 8 is a process diagram showing a process up to the sale of canned beverages in a beverage vending machine provided with a heating device for container-based beverages according to the second embodiment.

In FIG. 8, reference numeral 40 denotes a column for storing a plurality of types of canned beverages. Columns (A, B) for storing small canned beverages 41 (250 g) and large canned beverages 42 (34).
0g). Although the actual number of columns of a beverage vending machine is about 20 to 30, the present embodiment simplifies the structure.

Reference numeral 43 denotes a container transporting means, and a selection button 37,
The canned beverage selected by the consumer through 38 is conveyed to the heating device 1 for beverages in containers. Then, in the same manner as in Embodiment 1, the heating device 1 for a beverage in a container heats the canned beverage to a drinkable temperature (about 55 ° C.).

The beverage vending machine 32 cools the canned beverage in the column 40 to about 5 ° C. by a cooling device (not shown). Heat and sell.

Numeral 44 denotes a container removing means for taking out the heated canned beverage from the beverage heating device 1 in the container and discharging it to the outlet 39.

The hatch 3 of the heating device 1 for a beverage in a container
Opening and closing is automatically performed by incorporating a hatch opening / closing means (not shown).

On the other hand, when the consumer selects the cold beverage, the can beverage is directly discharged from the column 40 to the outlet 39.

As described above, the beverage vending machine provided with the heating device for beverages in containers according to the present embodiment provides container transporting means for transporting the selected canned beverages 41 and 42 to the heating device 1 for beverages in containers. 43, and a container take-out means 44 for taking out the canned beverage from the heating device 1 for the beverage in a container and discharging it to the take-out port 39, so that the canned beverage is automatically transported, heated and taken out, and kept cool until the point of sale. The heated beverage can be quickly sold for sale.

In this embodiment, the case where the present invention is applied to a beverage vending machine for selling canned beverages has been described.
Similar effects can be obtained by applying the present invention to a vending machine that sells ET bottled beverages and paper-packed beverages.

[0053]

As described above, according to the present invention, a heating apparatus for a beverage in a container is provided with a tank for storing a liquid, a liquid heating means for heating the liquid in the tank to a predetermined temperature, and a ceiling for the container containing the beverage. Container holding means for holding the container in the tank such that the surface portion is above the liquid surface of the liquid in the tank and allowing the container and the liquid to exchange heat, and the container containing a beverage Rotating means for rotating the container holding means holding the container about a rotation axis in a substantially vertical direction, and radiating upward from the top surface of the container which is disposed above the container at a position facing the top surface of the container. An infrared detecting means for detecting infrared light to be emitted, and a beverage heating control means for controlling heating of the container based on a detection result of the infrared detecting means, and heating the container containing the beverage to a predetermined temperature. Rotating in the liquid Then, by heating by heat exchange with the liquid, the beverage in the container can be rapidly heated irrespective of the material, manufacturing method, and shape of the container containing the beverage, even with an AC100V power supply. The infrared radiation emitted from the top of the container can be detected directly without passing through the liquid, so the top surface temperature of the container can be accurately detected, and accurate temperature control can be performed regardless of the initial temperature or heat capacity of the container containing the beverage. effective.

When the container holding means has a bottomed cylindrical shape or a cage shape in which the liquid and the container come into contact with each other through an opening on a side surface of the container having an inner diameter larger than the outer diameter of the container and opened into the liquid, the top surface of the container may be used. The liquid excluding the part comes into contact with the liquid, and the opening of the side surface opened in the liquid of the container holding means is rotated to mix the liquid in the tank, so that there is an effect that the heating efficiency of the container is improved.

Further, an opening / closing lid, which is connected to the upper end of the container holding means which has come out above the liquid level of the liquid in the tank, rotates in conjunction with the rotation of the container holding means, and a center of rotation of the opening / closing lid. An opening / closing lid supporting shaft that rotatably supports the opening / closing lid as a shaft is provided, and when the infrared detecting means is disposed in the opening / closing lid supporting shaft, the infrared detecting means is provided by an upper end portion of the container holding means and the opening / closing lid. Since the container holding means and the opening / closing lid support shaft which is the central axis of rotation of the opening / closing lid in the enclosed space, it is difficult for liquid to enter between the infrared detecting means and the top surface of the container, and There is an effect that the top surface temperature can be detected more accurately, and accurate temperature control can be performed regardless of the initial temperature and heat capacity of the container containing the beverage.

Further, when the beverage vending machine is provided with the above-mentioned beverage-containing heating device for a beverage in a container, there is an effect that the transport of the container to the heating device and the removal of the container from the heating device can be performed automatically.

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal sectional view of a heating device for a beverage in a container according to a first embodiment of the present invention when a hatch is closed.

FIG. 2 is a schematic vertical cross-sectional view when the hatch of the heating device for a beverage in a container according to the embodiment is opened.

FIG. 3 is a side view showing a configuration of a container holding means used in the apparatus for heating a beverage in a container according to the embodiment;

FIG. 4 is a sectional view taken along line A-A ′ of FIG. 3;

FIG. 5 is a block diagram showing a control system of the heating device for the beverage in a container according to the embodiment;

FIG. 6 is a characteristic diagram showing a relationship between a heating time of the beverage in a container and a temperature of the beverage according to the embodiment.

FIG. 7 is a schematic front view of a beverage vending machine according to Embodiment 2 of the present invention.

FIG. 8 is a process chart showing a process up to sale of a canned beverage in the beverage vending machine of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heater of beverage in a container 2 Tank 6 Beverage in a container 7 Container holding means 15 Opening / closing lid 16 Opening / closing lid supporting shaft 18 Motor 21 Infrared sensor 23 Opening 27 Drinking heat control means 31 Liquid heating means 32 Beverage vending machine

 ────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Gen Nojima 4-5-2-5 Takaida Hondori, Higashiosaka-shi, Osaka Matsushita Refrigerator Co., Ltd. F-term (reference) 3E044 AA01 CC08 DB16 EB08 FB02 FB11 3E046 BA03 BB03 BB04 EB01 GA08

Claims (4)

[Claims] 1. A tank for storing a liquid, a liquid heating means for heating the liquid in the tank to a predetermined temperature, and a top surface portion of a container containing the beverage so that the top surface portion of the liquid in the tank comes out above the liquid level of the liquid in the tank. Container holding means for holding the container in the tank so that the container and the liquid can exchange heat, and the container holding means for holding the container containing the beverage centered on a substantially vertical rotation axis. Rotating means for rotating motion, infrared detecting means disposed above the container and located at a position facing the top surface of the container and detecting infrared radiation emitted upward from the top surface of the container, and infrared detecting means A beverage heating device for a container, comprising: beverage heating control means for controlling heating of the container based on a detection result. 2. The container holding means has a bottomed cylindrical shape or a cage shape in which the liquid and the container come into contact with each other through an opening on a side surface which is larger in inner diameter than the outer diameter of the container and opened in the liquid. A heating device for a beverage in a container according to claim 1. 3. An opening / closing lid which is connected to an upper end of the container holding means which is above the liquid level of the liquid in the tank and which rotates in conjunction with the rotation of the container holding means, and which serves as a central axis of rotation of the opening / closing lid. The apparatus for heating a beverage in a container according to claim 2, further comprising an opening / closing lid support shaft rotatably supporting the opening / closing lid, and wherein the infrared detecting means is disposed in the opening / closing lid support shaft. 4. A beverage vending machine provided with the container-containing beverage heating device according to any one of claims 1 to 3.