Fast installation/removal structure for circuit board

Abstract

A fast installation / removal structure includes an upper board, a lower board, and an installation / removal lever. The upper board has hooking grooves and at least a positioning pin. The lower board has snap fitting devices and at least a sliding slot through which slidably inserts the positioning pin. A front end of the lever is pivotally connected to the lower board there below, and has a guide groove through which the positioning pin inserts. A rear end of the lever is externally accessible to allow manipulation by the user. With the circuit board securely fastened thereon, the upper board is placed on the lower board. The snap fitting devices respectively engage through the hooking grooves. By turning the lever, the positioning pin slides along the sliding slot to have the snap fitting devices respectively snap fit through the hooking grooves, thereby fastening the upper board to the lower board.

Description

[0001] 1. Field of the Invention[0002] The invention relates to a fast installation / removal structure for a circuit board of an electric appliance. More particularly, the invention provides a fast installation / removal structure that uses a slidable snap fitting to install and remove easily the circuit board so that the maintenance of the electric appliance is convenient.[0003] 2. Description of the Related Art[0004] Among the different components of an electric appliance, such as a computer unit, are usually a circuit board, a power supply, and a casing. The design of the circuit board conventionally determines the principal functions of the electric appliance. The power supply provides the electric power necessary to operate the electric appliance, and the casing externally protects all the components of the electric appliance. The circuit board of the electric appliance is further usually provided with the possibility of multiple extension connections to flexibly accommodate the n...

AI Technical Summary

Benefits of technology

[0009] It is another object of the invention to provide a fast installation / removal structure for a circuit board of an electric appliance that allows a secure assembly of the circuit board, which ensures a normal operation of the electric appliance.

Problems solved by technology

In mass production, a tool is therefore needed to lock multiple screws 8, which is time-consuming and may be cumbersome.

When the circuit board is installed, the manipulation of the screws, usually of small size, may cause the screw to be dropped and lost.

As a result, an insufficient number of mounted fastening screws or, alternatively, the biased engagement of the screws, cause a poor attachment of the circuit board, which may be detrimental to normal operation of the electric appliance.

In the worst situations, the screws may drop into the electric appliance and cause a short-circuit.

Therefore, the conventional installation / removal structure not only is cumbersome, but may also cause a deterioration of the performance of the components of the electric appliance.

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