JPH045953Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> This invention relates to a high-frequency heating instantaneous water heater that continuously obtains hot water by high-frequency heating of water passing through a water pipe.

<Prior Art> A water heater that heats water while flowing water is commercially available as a gas instantaneous water heater.

On the other hand, as shown in FIG. 5, in an electric water heater, water 103 is poured into a water boiling tank 101 from a faucet 102, stored, heated by a sheathed heater 104, and hot water 106 is taken out from a faucet 105. .

<Problems to be solved by the invention> In the case of this electric water heater, since it heats the stored water, extra energy is always required to heat the stored water.

Therefore, there is no need for extra water storage energy,
To provide a high-frequency heating type instantaneous water heater capable of performing high-frequency heating while flowing water like a gas instantaneous water heater.

<Means for solving the problems> The high-frequency heating instantaneous water heater of the present invention forms a high-frequency heating chamber with an elliptical cross section that reflects high-frequency radio waves, and one focal point of the ellipse of the high-frequency heating chamber. A high-frequency transmitting antenna is installed at one of the two focal points, and a water pipe made of a material that transmits high-frequency radio waves is installed at the other focal point.

<Function> If the high-frequency heating instantaneous water heater has the above configuration,
The high-frequency radio waves transmitted from the high-frequency transmitting antenna are reflected on the inside of the high-frequency heating chamber and actively irradiate the water pipe in a concentrated manner, and the water in the water pipe is heated by all of the concentrated irradiated high-frequency radio waves.

<Example> Hereinafter, an example of the present invention will be described based on the drawings.

Fig. 1 is a perspective view of the appearance of the high-frequency heating instantaneous water heater of the present invention installed and connected directly to a water faucet, where 1 is the instantaneous water heater, 2 is the water faucet, 3 is the water outlet handle, and 4 is the water faucet. Tap water coming out of the front faucet 5, 6
is a rear faucet, 7 is a selection lever for selecting whether to supply tap water to the front faucet 5 or rear faucet 6, 8 is a hose that leads tap water from the rear faucet 6 to the water heater 1, and 9 is a water heater It is a water pipe through which tap water is heated by high frequency in the vessel 1, and hot water 10 comes out from the outlet. 11 is a power cord for the water heater 1, 12 is an indoor outlet, and 13 is a power switch for the water heater 1.

Fig. 2 is a side sectional view showing the internal structure of the water heater, in which 14 is a magnetron, 15 is a high-frequency oscillation antenna, 16 is a high-frequency radio wave, and 17 is a high-frequency heating chamber with an elliptical horizontal section, one side of the ellipse. The high-frequency oscillation antenna is placed at the focal point of the ellipse, and the water pipe 9 is placed at the other focal point of the ellipse, and at least the inner surface of the body of the heating chamber 17 is finished with a floor surface so that the high-frequency radio waves 16 are reflected. The high frequency radio waves 16 emitted from the main body 15 are reflected on the inner surface of the body and are concentratedly irradiated onto the water pipe 9, as shown in FIG.
The water pipe 9 receives concentrated high frequency radio waves 1.
6 is preferably made of a high frequency radio wave transmitting material such as glass or ceramic so as to efficiently heat the water inside the pipe 9. 18, 19, 20 are high frequency heating chambers 1
The body, top plate, and bottom plate make up 7, and the joints are sealed to prevent high-frequency radio waves from leaking.

Reference numeral 21 denotes a pipe flange for preventing leakage of high-frequency radio waves provided at the water pipe outlet of the top plate 19 and the bottom plate 20, and the length of the pipe needs to be long enough to produce a radio wave shielding effect.

22 is a thermostat attached to the side wall of the pipe flange 21, which controls the temperature of the water pipe 9 when there is no water in the water pipe 9 or when the high frequency radio wave 16 is transmitted with water stopped. This is to prevent abnormal overheating.

Reference numeral 23 denotes an air blower for cooling the magnetron 14, high voltage transformer 24, high voltage diode 25, high voltage capacitor 26, etc. that constitute the high frequency generator. The magnetron 1 is
4 is designed to be cooled. 29 is a shield that blocks exhaust air and heat, 30 is a magnetron 14
This is a temperature fuse that prevents the magnetron 14 from abnormally overheating and burning out due to an abnormality in the air blower 23 or a failure (stoppage) of the blower 23.

Instantaneous water heaters are generally used by being attached to a wall, and in the embodiment shown in FIG. It is supported and installed with legs 35.

FIG. 4 is a basic electrical circuit diagram of the instantaneous water heater of the present invention, but since it is the same as the basic electrical circuit of a microwave oven, the explanation will be omitted.

The water heater of the present invention can be operated by operating the selection lever 7 and the water outlet handle 3 to supply tap water 4 to the water pipe 9 and at the same time turning on the power switch 13, from the high frequency transmitting antenna 15 of the magnetron 14. The emitted high-frequency radio waves 16 are concentratedly irradiated onto the water pipe 9, and the tap water 4 can be turned into hot water 10 instantaneously and continuously.

In addition, preliminary operations such as the pilot ignition of a gas instantaneous water heater are unnecessary, and furthermore, by adopting magnetron drive rate control, which is well known in microwave ovens, the high-frequency heating output can be changed continuously. hot water 1
It is possible to control the temperature of 0 easily and accurately.

<Effects> The high-frequency heating instantaneous water heater of the present invention has a high-frequency transmitting antenna at one focal point of the oval-shaped high-frequency heating chamber, and a water pipe at the other focal point. The high-frequency radio waves emitted from the high-frequency transmitting antenna are reflected on the inside of the high-frequency heating chamber, and all the high-frequency radio waves transmitted from the high-frequency transmitting antenna are actively and intensively irradiated to the water pipe with a simple configuration without the need for separate parts. It is possible,
It can heat water very efficiently without passing through pipes.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the installed state of the water heater of the invention, Fig. 2 is a side sectional view of the water heater of the invention, and Fig. 3 is a high-frequency wave to the water pipe in the heating chamber of the water heater of the invention. 4 is a basic electric circuit diagram of the water heater of the present invention, and FIG. 5 is a schematic diagram of a conventional electric water heater. Code, 9...Water pipe, 14...Magnetron, 15...High frequency transmission antenna, 17...Heating chamber.

Claims (1)

[Claim for Utility Model Registration] A high-frequency heating chamber with an elliptical cross section that reflects high-frequency radio waves is formed, a high-frequency transmitting antenna is disposed at one focal point of the ellipse of the high-frequency heating chamber, and a high-frequency transmitting antenna is disposed at the other focal point. A high-frequency heating instantaneous water heater characterized by having a water pipe made of a radio wave transparent material.