JPH0383192A - Heating device for sealed liquid - Google Patents

Abstract

PURPOSE:To heat the sealed liquid at specific temperature in a short time by supplying a high-frequency current to a high-frequency coil for a specific time and swinging a container on detecting the container being inserted into the high-frequency coil. CONSTITUTION:The output of a means 6 which detects the container 1 being inspected into the high-frequency coil 2 is inputted to a high-frequency power source 3 and a means 4 which swings the container 1. When the means 6 which detects the container 1 being inserted into the high-frequency coil 2 operates, the high-frequency current is supplied to the high-frequency coil 2 for the specific time and the means 4 which swings the container 1 operates for the specific time. Consequently, the liquid in the container is heated with a high frequency while swung for the specific time, so the liquid reaches the specific time uniformly in a short time.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a heating device for a liquid enclosed in a vending machine such as coffee or juice.

[Conventional technology]

As shown in FIG. 6, the hangar 04 inside the vending machine is controlled on and off by a controller 06 using a signal from a temperature detector 05 so that the internal temperature is at an appropriate temperature using a heating wire 02. That is, based on the output of the temperature sensor 05, the controller 06 opens and closes the circuit of the heating wire 02 by opening and closing the switch 07 to maintain the internal temperature of the hangar 04 at an appropriate temperature. Therefore, the can 01 in the hangar and its internal liquid are
The temperature is maintained at the same temperature as the inside of the refrigerator.

[Problem to be solved by the invention]

The conventional device described above has the following problems.

(1) For example, in the case of coffee cans, the best drinking temperature is 50 to 60°C, but this temperature matches the breeding temperature of putrefactive bacteria, and even if there is only a small amount of coffee, sterilization will be lost during filling. Otherwise, it will spoil the contents.

(2) In order to always supply hot drinks, it is necessary to maintain the temperature inside the refrigerator at an appropriate temperature at all times, and it is necessary to constantly supply a small amount of electricity regardless of whether the product is selling or not, which is uneconomical.

[Means to solve the problem]

The present invention takes the following measures to solve the above problems.

That is, a heating device for the sealed liquid includes a high-frequency coil, a high-frequency power supply connected to the high-frequency coil, a means for detecting that a container containing liquid is inserted into the high-frequency coil, and the high-frequency coil. means for agitating the container inserted therein, the means for detecting that the container is inserted into the high frequency coil such that an output is input to the high frequency power source and the means for agitating the container. When the means for detecting that the container is inserted into the high-frequency coil is activated, a high-frequency current flows through the high-frequency coil for a predetermined time, and the means for shaking the container is activated for a predetermined time.

[Effect]

When the container filled with liquid is inserted into the high-frequency coil by the above means, the means for detecting that the container is inserted into the high-frequency coil detects that the container is inserted into the high-frequency coil, and the high-frequency coil is supplied with high-frequency power from a high-frequency power source for a predetermined period of time. The container is actuated for a predetermined period of time by means of applying an electric current and agitating the container.

In this way, the liquid in the container is heated with high frequency while being agitated for a predetermined period of time, so that it reaches the predetermined temperature uniformly within a short period of time.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS. 1 to 3.

In FIG. 1, a high frequency coil 2 is provided with its axis vertical, and is connected to a high frequency type a3. A vibrator 4 is coaxially provided below the high-frequency coil 2, and its upper end supports the bottom of a liquid-filled can l inserted into the high-frequency coil 2 from above. Furthermore, the vibrator 4 is connected to an AC type vibrator B3a. Further, a limit switch 6 is provided at the bottom of the high frequency coil 2, which is activated by contacting the lower side surface of the can 1 when the can 1 is inserted. The limit switch is connected to a commercial Tl source 3b, and its output is inputted via a timer 7 to the high frequency power source 3 and the exciter AC power source 3a.

As shown in FIG. 2, the details of the vibrator 4 include a cylindrical vibration table lO coaxially provided above an E-shaped permanent magnet 12 with salient poles facing upward. The vibration table lO has the can 1 placed on its upper end and is supported in the horizontal radial direction by support springs. Further, a coil 11 is wound around the central salient pole of the permanent magnet 12 and connected to an AC TL source 3a for the exciter.

In the above configuration, the ring L is connected to the high frequency coil 2 from above.
When the can 1 is inserted into the can 1 and rides on the vibration table 10 of the vibration exciter 4, and the switch 6 on the bottom side of the can 1 is turned on, the power from the commercial power supply 3b is transferred to the timer 7.
Then, the timer 7 is started, and at the same time, the high frequency TL source 3 and the AC power source 3a for the exciter are turned on, and each of them is activated. A high frequency current flows from the high frequency power source 3 to the high frequency coil 2, and the liquid in the can 1 is heated by high frequency. On the other hand, an alternating current flows from the vibrator AC power source 3a to the coil 11, and its magnetic action causes the vibrating table 10 to be vibrated in the vertical direction to cause the can l to move and disappear. When the liquid in can 1 reaches a predetermined temperature,
In other words, when the timer 7 runs for a predetermined period of time, the timer 7 runs out.
The power to the high frequency power source 3 and the AC exciter type R3a is cut off.

The experimental results of this example are shown in FIG. 3. In the experiment, a can 1 with an output of 1.7 kW, 20 kl (z), and a volume of 200 cc was used as a high-frequency power source. From the figure, it can be seen that the can 1 was shaken while being vibrated. 5 in about 40 seconds with high frequency heating
It can be seen that the temperature is uniformly heated to nearly 0°C.

Another embodiment in which the vibrator 4 is changed will be described with reference to FIG.

An eccentric cam 20 that contacts the bottom of the can is provided, and a motor 21 having a shaft coupled to the eccentric cam 20 is provided. As the motor 21 rotates, the eccentric cam 20 rotates and the can 1 is moved up and down. Alternatively, as shown on the left side of the figure, an eccentric cam 21a and a motor 20a may be provided on the side of the can 1 to move the can 1 from side to side. Moreover, both of the above may be performed simultaneously.

Still another embodiment in which the vibrator 4 is changed will be described with reference to FIG. A turntable 22 that coaxially supports the can 1 is provided. Further, the turntable 22 is coaxially coupled to a motor 23. When the motor 23 rotates, the turntable 22 rotates with the can 1 placed thereon.

Therefore, the liquid in the can 1 flows and is stirred by centrifugal force. At this time, the rotation direction may be switched at predetermined intervals to increase the stirring effect.

〔Effect of the invention〕

As explained above, according to the present invention, the following effects are achieved.

(1) Enclosed liquid can be heated to a predetermined temperature in a short time. Therefore, when applied to vending machines, (a) it is possible to prevent spoilage from progressing during storage;

(bl) Energy for constant heating is not required, making it efficient.

<C) Preventing taste changes due to long-term heating storage 6

[Brief explanation of drawings]

Fig. 1 is an overall configuration diagram of an embodiment of the present invention, Fig. 2 is a detailed view of the vibrator of the embodiment, Fig. 3 is an explanatory diagram of the operation of the embodiment, and Fig. 4 is a diagram of the embodiment. FIG. 5 is a side view of yet another embodiment in which the vibrator of the same embodiment is changed; FIG. 6 is an overall system diagram of a conventional example of the present invention. It is. l...Kan, 2...High frequency coil,
3... High frequency TL source, 3a... AC power supply for exciter, 3b... Commercial power supply, 4... Exciter,
6...Limit switch, 7...Timer, IO...
- Vibration table, 11... Coil, 12... Permanent magnet, 13... Spring.

Claims (1)

[Claims] a high-frequency coil; a high-frequency power supply connected to the high-frequency coil; a means for detecting that a container containing liquid is inserted into the high-frequency coil; and a means for shaking the container inserted into the high-frequency coil. and a means for detecting that the container is inserted into the high frequency coil is such that an output is input to the high frequency power supply and the means for agitating the container, and the means for detecting that the container is inserted into the high frequency coil is configured such that an output is input to the high frequency power supply and the means for shaking the container, and the means for detecting that the container is inserted into the high frequency coil A device for heating an enclosed liquid, characterized in that when the means for detecting insertion into the coil is activated, a high-frequency current flows through the high-frequency coil for a predetermined period of time, and the means for agitating the container is activated for a predetermined period of time.