Electric heating device capable of quick heat conduction and efficient heating

Abstract

The invention discloses an electric heating device capable of quick heat conduction and efficient heating. The electric heating device is composed of a power plug, a heating element, a heat conduction element and a waterproof element. The waterproof element comprises a front plug, a rear plug, a front plug cap, a rear plug cap and a waterproof casing. The heating element is installed in a cavity formed by the waterproof element and is an insulated winding heating body, and two input ends of the insulated winding heating body are respectively connected with a live wire and a neutral wire of the power plug. The heat conduction element and the waterproof casing are metal pipes, and the metal pipes are sheathed outside the insulated winding heating body and are closely attached to the surface of the insulated winding heating body. As the metal pipes are closely attached to the insulated winding heating body and have good heat conduction property, the electric heating device can transfer heat generated by the heating element to the surface quickly and uniformly, thus reducing waste of heat energy; and meanwhile, as the lengths of the metal pipes are easy to modify, the electric heating device is convenient and simple to process and lower in cost.

Description

technical field [0001] The invention relates to an electric heating device, in particular to an electric heating device with rapid heat conduction and high-efficiency heating, and belongs to the production field of electric heating devices. Background technique [0002] Electric heating devices are widely used in daily life, such as hot water pipes, heating pipes in electric water heaters, heating elements in water dispensers, etc. These small-volume, tubular electric heating devices are collectively called electric heating pipes. Since the working environment of this kind of electric heating tube is mostly water, it is required to have waterproof and insulating functions. [0003] The existing electric heating tubes use PTC heating element (PTC heater is a heating device designed by using constant temperature heating PTC thermistor constant temperature heating characteristics) as heating element, the insulation performance of this element is generally poor, so it is necessa...

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Problems solved by technology

The defect of this heating tube is: due to the poor thermal conductivity of the ceramic or plastic tube, the heat generated by the heating element is transmitted to the surface at a slower speed, and the heat energy is wasted more; The heat distribution is not uniform enough, which reduces the product performance of the heating tube; at the same time, due to the strong fragility of the ceramic or plastic tube, it is difficult to change its length once formed, so the processing is difficult and the cost is high

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