Electric heaters

Abstract

The invention discloses an electric heater. The electric heater comprises an electric heating tube, a shell, a fluid inlet and a fluid outlet, wherein the shell comprises a first shell and a second shell which are assembled; the first shell comprises a first peripheral wall and isolation components, the isolation components are located on the inner side of the first peripheral wall, the isolationcomponents are fixedly arranged with the first peripheral wall; the isolation components are provided with first side parts and second side parts which are oppositely arranged, the first side parts are provided with grooves for accommodating the electric heating tube, a first space is formed between the first side parts and the first peripheral wall; the second shell comprises a second peripheralwall and a mounting plate, the mounting plate comprises the first side parts facing the isolation components and the second side parts facing away from the isolation components, a second space is formed between the second side parts of the mounting plate and the second peripheral wall; the first side parts of the mounting plate, the second side parts of the isolation components and the first peripheral wall and / or a part of the second peripheral wall forms fluid cavities. The electric heater is high in safety.

Description

[0001] This application claims the priority of the Chinese patent application with the application number 201611259683.8 and the title of the invention "Electric Heater" filed with the China Patent Office on December 30, 2016, the entire contents of which are incorporated herein by reference. technical field [0002] The invention relates to the technical field of heaters, in particular to an electric heater. Background technique [0003] New energy vehicles mostly use electric heating to heat the cockpit, in line with the concept of zero emissions. [0004] At present, a commonly used electric heater is a metal tube electric heater, which directly immerses the electric heating tube in the cooling liquid, and generates heat when it is energized. Although metal tube electric heaters have high thermal efficiency and fast heating, there are still the following problems: First, there is usually ethylene glycol in the cooling liquid, which has weak acidity and is corrosive to met...

AI Technical Summary

Problems solved by technology

Although metal tube electric heaters have high thermal efficiency and fast heating, there are still the following problems: First, there is usually ethylene glycol in the cooling liquid, which has weak acidity and is corrosive to metal tubes, posing safety risks ;Secondly, the metal pipe is in direct contact with the coolant. Once the metal pipe has cracks, the coolant will be electrified, which is very dangerous.

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