Waterproof machine shell for water controller

Abstract

The invention discloses a waterproof machine shell for a water controller. The shell comprises an upper shell and a lower shell which are buckled hermetically and mutually, wherein a positive spigot is formed on the inner wall of a lower port of the upper shell, a negative spigot which is in close fit with the positive spigot is formed on the inner wall of an upper port of the lower shell; dubbin is coated on a matching surface of the negative spigot and the positive spigot; the periphery of the lower port of the upper shell and the upper port of the lower shell, which is closely adjacent to the positive spigot and the negative spigot, is respectively provided with grooves for embedding and clamping sealing members; an upward flange is arranged at the periphery of the groove of the upper port of the lower shell; a glue groove is formed by the flange and the outer wall of the lower port of the upper shell; and sealant is filled into the glue groove. A triple waterproof structure of spigot sealing, sealing member sealing and sealant-pouring sealing at an outer seam of the upper shell and the lower shell is adopted; and compared with a sealing mode of arranging a seal ring in a single groove in the prior art, the waterproof machine shell has the advantages of more reliable and stable water prevention and vapor prevention and excellent heat dissipation, and overcomes the defect of overburning a circuit board due to local overheating.

Description

technical field [0001] The invention relates to a water controller, in particular to a water controller waterproof casing. Background technique [0002] Water controllers are mainly used in public bathrooms, toilets, and boiling water rooms to meet the hot water metering and prepaid management of collective dormitories of schools, enterprises and institutions, and realize water and energy saving. Since the water controller is used in a hot and humid environment, it has special requirements for waterproof and steam proof. The existing waterproof and steam-proof methods of the water controller, one is to use the overall glue filling in the circuit board casing, this method uses a large amount of glue, the overall heat dissipation capacity is poor, and the local heating is easy to burn the circuit; the other is to use a single groove to seal Due to the process, assembly, long-term environmental temperature changes and circuit board heating, this method will almost never cause ...

AI Technical Summary

Problems solved by technology

The existing waterproof and steam-proof methods of the water controller, one is to use the overall glue filling in the circuit board casing, this method uses a large amount of glue, the overall heat dissipation capacity is poor, and the local heating is easy to burn the circuit; the other is to use a single groove to seal In this method, due to the influence of process, assembly, long-term environmental temperature changes and circuit board heating, water and steam will almost never occur outside the column.

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