Expansion water tank cover capable of preventing people from being scalded under high temperature of engine, expansion water tank and control method of expansion water tank

Abstract

The invention discloses an expansion water tank cover capable of preventing people from being scalded under high temperature of an engine. The expansion water tank cover comprises a shell, an electromagnet, a push rod, a tooth ring and a spring, wherein an inner groove is formed in the shell; a through hole is formed in the upper part of the shell and communicates with the inner groove; a stop spring is arranged at the lower part of the shell; the electromagnet is arranged at the upper part of the inner groove; a magnet is arranged at the upper part of the push rod and matched with the electromagnet to be attracted by and separated from the electromagnet; a toothed disc is arranged at the lower part of the push rod; the push rod can slide up and down in the inner groove relative to the shell, and the sliding position is determined through the stop spring; the tooth ring is fixed at the upper part of the interior of the water tank; when the push rod slides upwards, the tooth ring is meshed with the toothed disc to fix the toothed disc; and the spring is arranged between the electromagnet and the push rod. The invention further discloses an expansion water tank capable of preventingpeople from being scalded under high temperature of the engine and a control method of the expansion water tank.

Description

technical field [0001] The invention relates to the field of engine water tanks, in particular to an expansion tank cover, an expansion tank and a control method thereof for preventing scalding when the engine is at high temperature. Background technique [0002] When the car is running, it often encounters engine high-temperature faults (commonly known as boiling). At this time, the operating temperature of the car will reach a temperature that is too high for the normal operating temperature range, which will affect the normal operation of the machine and damage the machine. There are many reasons for the high temperature of the engine. In addition to the high temperature weather, the overload operation of the air conditioner and the failure of the cooling element will also make the car high temperature. When the engine has a high temperature failure, the water in the expansion tank will boil and generate a certain pressure inside. However, many drivers blindly open the co...

AI Technical Summary

Problems solved by technology

[0003] The invention designs and develops an expansion tank cover that prevents scalding when the engine is at high temperature. The purpose of the invention is to prevent the expansion tank cover from being opened blindly by the driver when the engine has a high-temperature fault, and the high-temperature coolant is sprayed out to cause scalding.

[0004] The invention designs and develops an expansion water tank that prevents scalding when the engine is at high temperature. The purpose of the invention is to prevent the expansion tank from being opened blindly by the driver when the engine has a high temperature failure, and the high temperature coolant is sprayed out to cause scalding.

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