Electric heater for aquarium body and electric heating method thereof

Abstract

The invention discloses an electric heater for an aquarium body, the electric heater comprising an insulating tube and a heating control circuit board arranged inside the insulating tube. The heating control circuit board comprises a capacitance induction module and a single-chip microcomputer control module. An output end of the capacitance induction module is connected to an input end of the single-chip microcomputer control module. The invention also discloses an electric heating method for an aquarium body comprising following steps: the capacitance of medium in the space outside the insulating tube is collected by a detecting electrode of the capacitance induction module; the integration time of integration capacitor is detected by the single-chip microcomputer control module; the output of a power control device is controlled by the single-chip microcomputer control module. According to the electric heating method, the capacitance of medium in the space outside the insulating tube is detected by a detecting electrode of the capacitance induction module arranged inside the insulating tube; the integration time of integration capacitor is detected by the single-chip microcomputer control module. Thus, whether the heating device is immersed in the liquid or not is detected in a non-contact manner. The problem of easy corrosion of electrode by contact-type detecting is solved. The beneficial effects are: high detection sensitivity; reduced potential risk of electric heaters; prolonged service life of electric heaters.

Description

technical field [0001] The invention relates to the technical field of heating devices, in particular to an electric heating device for an aquarium tank and a method thereof. Background technique [0002] The heating of the aquarium body (such as a tropical ornamental fish tank) is generally heated by a heating tube (rod) placed in the aquarium body in an electrified state. Most of the heating tubes (rods) do not have the function of detecting whether they are immersed in the liquid, so that after the heating tubes (rods) leave the liquid, such as when changing the water in the water tank, cleaning, etc., they forget to turn off the power due to negligence. If people go out for a long time and fail to change or add water to the water tank in time, the heating pipe (rod) will dry-burn, resulting in scalding the human body, bursting of the heating pipe (rod), and even causing a fire. [0003] At present, there are also products on the market that detect whether the heating tu...

AI Technical Summary

Problems solved by technology

This type of product solves the above-mentioned problem of preventing the heating tube (rod) from burning dry, but the metal electrode is easily electrolytically corroded, especially in seawater and other liquids, and its service life is not long

In addition, long-term immersion will inevitably cause water vapor to immerse into the heating tube (rod), causing the electronic components to be broken down, thereby making the two metal electrodes conduct electricity, causing the danger of electric shock to humans (fish)

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