PTC liquid heater

Abstract

The invention discloses a PTC liquid heater which comprises a metal shell, PTC heating rods and an insulation end cover. Heat conducting rings are vertically arranged in the metal shell at equal intervals; the heat conducting rings and the metal shell are fixedly connected through heat conducting columns; the PTC heating rods are fixed to the bottom part of the insulation end cover and are vertically inserted into the heat conducting rings; telescopic support arms are symmetrically arranged on two sides of the insulation end cover; concave clamps are arranged at one ends, far away from the insulation end cover., of the two telescopic support arms; uniformly distributed heat conducting convex blocks are arranged on an outer wall of the metal shell; and insulation layers are arranged on theouter sides of the heat conducting convex blocks and the metal shell. The PTC liquid heater provided by the invention is simple in structure, small in size, and convenient to carry and use; and through the cooperative use of the telescopic support arms and the concave clamps, the heater can be quickly clamped and fixed into a water container to be heated, so that the occurrence of the phenomenon that the heater is shaken due to water boiling is avoided during a heating process.

Description

technical field [0001] The invention relates to the technical field of liquid heating, in particular to a PTC liquid heater. Background technique [0002] With the continuous development of heater technology, various liquid heater applications have emerged, among which PTC liquid heaters are widely used because of their small size and low energy consumption. However, the existing PTC liquid heater is not equipped with a device for clamping and fixing. In the process of heating the liquid in the water container, the phenomenon that the heater shakes due to the boiling of the liquid often occurs, and the existing PTC liquid The heater has low heat transfer efficiency, slow heating speed and long heating time. Contents of the invention [0003] The purpose of the present invention is to provide a PTC liquid heater to solve the PTC liquid heater in the prior art. There is no device for clamping and fixing. In the process of heating the liquid in the water container, often occ...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a PTC liquid heater to solve the PTC liquid heater in the prior art. There is no device for clamping and fixing. In the process of heating the liquid in the water container, often occur The heater shakes due to the boiling of the liquid, and the heat transfer efficiency is low, the heating speed is slow, and the heating time is long.

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