JPH09286268A - Hot water service system for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To heat and hold a variety of drinks at a desired temperature with no necessity for heat insulation, only holding a vessel by means of simple constitution. SOLUTION: This automobile hot water service system 1 consists of an induction heating controller 2 generating a high-frequency current, a battery 4 feeding this controller 2 with electric power via a switch 3, an induction heating coil 6 generating a high-frequency field by means of a high-frequency current, and a vessel holding part 7 wrapped with this induction heating coil 6 on the peripheral surface, holding a vessel housing drinks. In this constitution, the induction heating coil 6 is wound round solenoidally toward the center in almost plate form, on the outer surface of a nonmagnetic-nonconductive member to be constituted with nonmagnetic and nonconductive materials so as to obviate any electric leakage even if it contacts with a vessel consisting of such a magnetic member as being high in permeability, housed with drinks being heated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water heater for automobiles, and more particularly to a water heater for automobiles characterized by a heated portion of beverages.

[0002]

2. Description of the Related Art In recent years, long-distance driving and outdoor leisure have become popular with the spread of RVs and the like.

In such a situation, it is common practice to attach a cup holder for canned beverage such as coffee to the side of the seat so that the canned beverage can be easily drunk.

However, with hot beverages, there is a problem that they are cooled by simply holding them in a cup holder.

Therefore, a cup holder which is prevented from cooling by providing a heat insulating material and a cup holder which can be attached to a hot air outlet for heating have come to be used.

[0006]

However, even in the above-described heat insulating cup holder and warm air cup holder, the progress of cooling can be delayed to some extent, but in the end, cooling is performed, and the above problem is essentially caused. Can not be solved.

On the other hand, for example, although a heat retaining device utilizing heat of engine cooling water has been proposed and put into practical use, there is a problem that the degree of freedom of the installation location is limited due to the limitation of piping and the temperature control is difficult. There is.

The present invention has been made in view of the above-mentioned circumstances, and has a simple structure, by simply holding the container, without the need for heat insulation, and capable of heating and holding beverages at a desired temperature. The purpose is to provide a hot water device.

[0009]

According to the present invention, there is provided a vehicle water heater, which is provided in a vehicle compartment and is supplied with electric power from a vehicle-mounted power source to heat and keep beverages warm. And container holding means, and magnetic field generating means for generating a high frequency magnetic field in the container holding means.

In the hot water apparatus for an automobile of the present invention, a high-frequency magnetic field is generated in the container holding means by the magnetic field generating means, and the container made of the magnetic member held therein is induction-heated. By simply holding the container, it is possible to heat and hold the beverage at a desired temperature without the need for heat insulation.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 relate to a first embodiment of the present invention, FIG. 1 is a configuration diagram showing a configuration of an automobile water heater, and FIG. 2 is a configuration showing a configuration of a main part of the automobile water heater of FIG. FIG. 3 is a first explanatory diagram illustrating an example of installation of the automobile water heating device of FIG. 1, and FIG. 4 is a second explanatory diagram illustrating an example of installation of the automobile water heating device of FIG. 1.

(Structure) As shown in FIG. 1, a hot water system 1 for an automobile of the present embodiment includes an induction heating control device 2 having an inverter circuit (not shown) for generating a high frequency current,
A battery 4 for supplying electric power to the induction heating control device 2 via a switch 3; an induction heating coil 6 for generating a high frequency magnetic field by a high frequency current from the induction heating control device 2;
It is composed of a container holding part 7 in which an induction heating coil 6 for holding a container for storing beverages described later is wound around an outer peripheral surface.

In the container holding section 7, as shown in FIG. 2, the high frequency current induction heating coil 6 supplied from the induction heating control device 2 is energized.

The induction heating coil 6 is made of a non-magnetic material so that the induction heating coil 6 does not leak even if it comes into contact with a heated magnetic member having a high magnetic permeability, such as a container 11 made of stainless steel (SUS). In the outer surface of the non-magnetic non-conductive member 12, which is made of a non-conductive material and is made of, for example, ceramic or heat-resistant plastic material, it is wound like a solenoid toward the center in a substantially plate shape.

Further, in order to concentrate the magnetic flux generated by the induction heating coil 6 in the container 11 and prevent the magnetic flux generated in the external magnetic metal (not shown) from leaking,
The outer circumference of the induction heating coil 6 is shielded by, for example, a silicon steel plate 13.

(Operation) Next, the operation of the present embodiment configured as described above will be described.

The container 11 containing the beverages 10 is placed and held in the container holder 7. Then, by depressing the switch 3, electric power is supplied from the battery 4 to the induction heating control device 2. In the induction heating device 2, a high frequency current is generated by an inverter circuit (not shown) or the like, the high frequency current is supplied to the induction heating coil 6, and the induction heating coil 6 generates a high frequency magnetic field.

The generated high-frequency magnetic field causes an eddy current to flow in the container 11 having a high magnetic permeability, which is magnetically coupled to the induction heating coil 6, and the eddy current is converted into Joule heat by the internal resistance of the container 11 itself. Then, the container 11 is warmed and the generated heat heats the beverage 10 in the container 11 by heat conduction. That is, the electric energy supplied as an eddy current in a non-contact state is consumed for heating the beverages 10 and the container 11 in the container 11.

Since the temperature of the container 11 is determined by the balance between the supplied energy and the consumed energy, if the temperature of the container is controlled to a predetermined value, the beverages 10 in the container can be heated and kept warm. However, the temperature of the container 11 can be calculated from the relationship with the magnetic permeability of the magnetically coupled container 11, and the magnetic permeability can be measured by detecting the induction heating resonance frequency. Therefore, the induction heating control device 2 detects the induction heating resonance frequency and detects the magnetic permeability of the container 11 at that time, thereby calculating the temperature of the container 11 and controlling the heating so as to reach a desired temperature and keeping the temperature.

The container holder 7 including the induction heating coil 6
Since only the container 11 is heated without generating heat from itself, the entire apparatus can be thermally sealed and there is a degree of freedom in installation location.

Here, an example of installation of the above-described water heater 1 for an automobile will be described with reference to FIGS. 3 and 4.

As shown in FIG. 3, for example, the hot water system 1 for an automobile is installed in a console box 21 inside the vehicle. The inside of the console box 21 has a substantially rectangular parallelepiped shape, and a recess 22 for arranging the container holding portion 7 in the lower portion thereof is provided.
Is formed, and by closing the recess 22 with the lid 23, the console box 21 has a double-structured space.

When using the automobile water heater 1 provided in the console box 21, as shown in FIG. 4, the lid 23 is lifted and the container 11 containing the beverage 10 is placed.
Is held in the container holding portion 7 and heated and kept warm as described above. In addition, when not using the automobile water heater 1,
By closing the lid 23, the console box 21 can be used normally.

(Effect) As described above, the water heater 1 for an automobile according to the present embodiment does not require a special temperature sensor or the like because the induction heating resonance frequency is detected by the induction heating device to calculate the temperature. The heating and heat retention control can be performed easily and reliably.

Further, since the container 11 itself is induction-heated, it is not necessary to provide a special heat insulating means in the water heater 1 for an automobile, and it is possible to improve the degree of freedom of installation place not limited to the console box 21. .

FIG. 5 is a structural diagram showing the structure of a water heating system for an automobile according to a second embodiment of the present invention.

Since the second embodiment is almost the same as the first embodiment, only different points will be described, and the same components will be denoted by the same reference numerals and description thereof will be omitted.

The hot water system for an automobile of this embodiment is shown in FIG.
As shown in FIG. 5, electric power is supplied to the induction heating control device 2 by the electric double layer capacitor 5 instead of the battery 4 having the cigar lighter configuration of the first embodiment. Other configurations and operations are the same as those in the first embodiment.

The electric double layer capacitor 5 has a power density 10 times or more higher than that of the battery 4, and moreover, since the internal resistance is small, the charging efficiency is high, so that the electric double layer capacitor 5 can be rapidly charged, and the electric power consumed in a short time can be consumed. Can be charged efficiently.

Therefore, as a power source for heating the container 11 containing the water heater 1 for automobiles and the beverages 10 in a short time,
It can be said that the electric double layer capacitor 5 is suitable.

The other effects are the same as those of the first embodiment.

[0032]

As described above, according to the hot water apparatus for an automobile of the present invention, the magnetic field generating means generates the high frequency magnetic field in the container holding means, and the container made of the magnetic member held therein is induction-heated. With a simple configuration, there is an effect that it is possible to heat and hold beverages at a desired temperature simply by holding the container, without the need for heat insulation.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a configuration of a vehicle water heater according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram showing a configuration of a main part of the automobile water heater of FIG.

FIG. 3 is a first explanatory diagram illustrating an example of installation of the automobile water heater of FIG.

FIG. 4 is a second explanatory diagram for explaining an example of installation of the automobile water heater in FIG.

FIG. 5 is a configuration diagram showing a configuration of an automobile water heater according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Water heater for automobile 2 ... Induction heating control device 3 ... Switch 4 ... Battery 5 ... Electric double layer capacitor 6 ... Induction heating coil 7 ... Container holding part 10 ... Beverages 11 ... Container 12 ... Non-magnetic non-conductive member 13 … Silicon steel plate 21… Console box 22… Recessed part 23… Lid

Claims (3)

[Claims] 1. A water heater for an automobile, which is provided in a vehicle compartment and is heated by a vehicle-mounted power source to heat and keep beverages, a container holding means for holding a container made of a magnetic member, and a high-frequency magnetic field in the container holding means. A hot water device for an automobile, comprising: 2. The hot water apparatus for a vehicle according to claim 1, wherein the container holding means is provided in a console box in a vehicle compartment. 3. The water heater for an automobile according to claim 1, wherein the vehicle-mounted power source is a battery or an electric double layer capacitor.