Electrical oil heater with high thermal efficiency

Abstract

The invention provides an electrical oil heater with high thermal efficiency. The electrical oil heater comprises a plurality of heat sinks which are tightly arrayed in sequence, wherein each heat sink is provided with an oil storage bag and a radiating fin; the oil storage bags in the heat sinks are merged and arrayed in sequence and are sealed to form an inner cavity used for containing conduction oil; the inner cavity is provided with an electric heating bar used for heating the conduction oil; a preset angle is formed between the radiating fins and the oil storage bags; under the angle, turbulent flow used for limiting hot air from flowing to the side edge is formed between a previous heat sink and a next heat sink, hot airflow flows from bottom to top in a one-way mode, and the effect of air natural thermal convection is effectively promoted; under the same width condition, the effective area of heat radiation is enlarged, the whole radiating effect of the electric oil heater is effectively promoted, and the energy-saving effect and high efficiency are realized.

Description

[0001] technical field [0002] The invention relates to the field of electric heaters, in particular to an electric heating oil heater with high thermal efficiency. [0003] Background technique [0004] It is known that the electric heating oil heater can generate heat after being energized to help people drive away the cold and make people feel warm indoors. Almost every family has one. [0005] traditional electric heating oil figure 1 As shown, it is mainly composed of several heat sinks 1' closely arranged in sequence, and each heat sink 1' is punched out with a cavity 2' with a predetermined shape, and multiple cavities 2' are welded for loading heat transfer oil. 3', the inner cavity is equipped with an electric heating rod 4' electrically connected to the electric control board, the heat generated by the electric heating rod 4' is absorbed by the heat conduction oil 3', so that the heat gathers to the heat sink 1' and passes through The gas is released into the a...

AI Technical Summary

Problems solved by technology

[0006] However, there is a vertical right-angle structure between the body of the traditional heat sink 1' and the cavity 2', so that the sides of the heat sink 1' and the side of the next heat sink 1' are merged into an equal-spaced vertical and horizontal arrangement. There is a heat dissipation space between the two heat sinks, but this vertical and horizontal arrangement tends to make the convection between the heat sinks unstable, affecting the heat dissipation speed and heat dissipation effect

[0007] In this regard, some manufacturers install heat insulation strips on the side of the heat sink, but this will result in high production costs and increased processing difficulty

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