Waterproof embedded electronic device

Abstract

The invention provides a waterproof embedded electronic device comprising a shell and a circuit board assembly arranged in the shell, wherein the shell comprises an upper box body of an integral seamless structure; the upper box body comprises a top and side walls surrounding the top; an accommodating space is formed by the top and the side walls; an opening of the upper box body is downwards; a cover body is covered at the peripheral edge of the bottom of the upper box body; the bottom of the cover body is provided with at least one through hole; the inner side of the cover body is vertically provided with a fixed plate; and the circuit board assembly is fixed on the fixed plate. Compared with the prior art, the waterproof embedded electronic device has the advantages that the shell can effectively prevent water drops from flowing or permeating into the electronic device through seams and protecting electronic elements arranged in the shell from causing short circuit to result in damage; and the waterproof embedded electronic device is simple in structure and good in heat radiation performance.

Description

technical field [0001] The invention relates to an electronic device, in particular to an electronic device with waterproof and anti-splash function. Background technique [0002] With the increasingly widespread application of electronic technology, for existing electronic instruments, especially for instruments used in cold storage, kitchen and other occasions, waterproof (especially anti-spray) protection is extremely important. [0003] It is usually used to apply insulating varnish on the circuit board to waterproof, but this method is often difficult to waterproof the terminals of electronic instruments, etc. CN201369293 discloses an improved thermostat. Welding each other can prevent water and moisture, but the process of welding and insulating paint is added. [0004] In addition, some use the instrument box body for closed protection. This method usually adopts the following means: (1) Each panel of the shell is made independently of each other, and then assembled...

AI Technical Summary

Problems solved by technology

This existing wiring method increases the risk of the terminal being exposed to the water environment

Most of the instruments are embedded in the equipment, and the sealing of the equipment shell is generally poor. If the equipment is washed with water, the inside of the equipment will be dripped with water. In this case, the terminal is connected to the outer surface of the instrument shell. It will cause water to pour directly on the terminal, which can easily cause a short circuit and cause equipment failure

[0006] Chinese patent ZL200820035903.3 discloses an embedded integral waterproof instrument housing, which includes a main housing and a rear housing, the internal circuit board of the housing is fixed on the front of the housing, the rear housing is embedded in the main housing, and the lower outlet hole part It is sealed by the sealing sleeve to prevent the lead terminals from being showered. However, in this design, there is still a fitting gap between the main shell and the rear shell, and it is difficult to completely prevent water from flowing into the instrument from above.

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