JP3133446U - Electric hot water heater - Google Patents

Abstract

An apparatus capable of raising the temperature safely and in a short time without changing the color of water or generating a voltage in a liquid as a heating element of an electric hot water bottle.
SOLUTION: Using a heating device 1 in which a heater wire 9 covered with silicon rubber or the like and a thermal fuse 7 with a heat sink 8 are incorporated on plastic, the temperature of water is raised safely in a short time. In this case, there is no discoloration of water and no voltage is generated in the liquid. Even if the hot water bottle breaks during energization, the thermal fuse is cut off, and even if the thermal fuse does not operate, the heater wire burns out in the air, stops energizing, and fire and other problems do not occur.
[Selection] Figure 1

Description

  The present invention relates to an apparatus for directly heating water using a heater wire covered with silicon rubber or the like as a heat source of an electric hot water bottle.

  An electric hot water bottle applies an AC voltage to water or a liquid containing salt or other impurities in water, and the electrolysis technique raises the temperature using the liquid as a heating element, and the electric hot water bottle continues to expand. The electrode is oxidized, the liquid changes color, and there is a voltage in the liquid.

As an improvement measure, the temperature of the water is increased using a heater wire.
Actual application 2006-004609

  The problem with the present invention is how to control the hot water bottle without swelling, discoloring the water, and how to warm it safely and quickly.

  In order to solve the above-mentioned problems, the present invention provides an apparatus for directly heating water by incorporating a heater wire and a thermal fuse covered with silicon rubber on a plastic.

  No voltage is applied to the water in the electric hot water bottle, which is safe.

  The water in the electric hot water bottle does not change color.

  Even if an electric hot water bottle breaks during energization, the thermal fuse is cut off, and even if the thermal fuse does not operate, the heater wire is cut off and there is no problem such as a fire and it is safe.

  An electric hot water bottle using the electrolysis technique expands with gas generated by electrolysis, but there is a limit to the expansion when this heat generating device is used.

  Incorporating heater wires, heat sinks and thermal fuses covered with silicon rubber on the plastic to limit the movement of the plastic due to convection due to temperature rise.

This heating device will be explained with reference to Figs.
The electric hot water bottle is composed of a power cord 1 and a hot water bottle 3. The hot water bottle has a power socket 2, a thermostat 4 such as a bimetal, a safety mechanism 5 such as a fuse, a display 6 such as an LED, and a temperature fuse 7 on a plastic 12. It is made up of a heat generating device 10 incorporating a heat sink 8 and a silicon rubber heater wire 9. When energized, the temperature of the water rises. As the temperature rises, the heating device 10 rises. To prevent this, the heater fixing plastic sheet 14 is welded and fixed together with the hot water bottle upper and lower sealing surfaces 13. In the unlikely event that a hot water bottle breaks during energization, the thermal fuse 7 is cut off. For example, even if the thermal fuse 7 does not operate, the heater wire burns out in the air and stops energizing, causing a fire, etc. There is no problem. There is no discoloration of water.

  The present invention is safe, inexpensive and can warm water, and can be used as a heating device for electric hot water bottles.

Electric hot water bottle wiring diagram Fixing method of heating device 10

Explanation of symbols

1 Power cord, plug 2 Power socket 3 Hot water bottle 4 Thermostat such as bimetal 5 Safety mechanism such as fuse 6 Indicator such as LED 7 Thermal fuse 8 Heat sink 9 Silicon rubber heater wire 10 Thermal fuse and silicon rubber heater are built on plastic Heating device 11 Water 12 Plastic 13 Hot water bottle housing top and bottom sealing surface 14 Plastic sheet for fixing heater

Claims (3)

  A heater wire such as a nichrome wire is wound directly or around a glass wool core, and the silicon rubber heater wire covered with silicon rubber or the FEP code heater wire covered with fluororesin (FEP) is put on plastic. Built-in heating device.   2. The heat generating device according to claim 1, wherein a thermal fuse is incorporated together with a heat sink to prevent a fire.   In order to prevent the heat generating device of claim 1 from being lifted by convection due to a temperature rise, a plastic sheet is used at the upper and lower sealing portions of the electric hot water bottle or directly on the bottom surface of the electric hot water bottle and sealed together with the heat generating device of claim 1. The heating device according to claim 1, wherein movement is restricted.

Images