Knob and knob control method

Abstract

The invention relates to a knob, which includes a rotating body. The rotating body includes a cylinder inserted in a panel mounting hole, a screw cap connected to the top of the cylinder, and a sealing gasket arranged between the lower end surface of the screw cap and the panel. An elastic piece is provided on the outside of the cylinder, the first end of the elastic piece is pressed against the lower end surface of the panel, and the second end of the elastic piece is pressed against the cylinder so that the rotating body tends to move downward. The knob of the invention realizes the sealing of the end face of the screw cap, and the sealing effect is better. Even if the end face of the gasket is worn, there will be no problem of seal failure. The present invention also relates to a control method of a knob. The pressure V received by the knob is detected and obtained by a pressure sensor; V is compared with the pressure threshold range Vi corresponding to the adjustment amount Mi of each unit rotation angle, wherein i is a natural number; if V falls into If it is within the range of Vi, it is determined that the unit rotation angle adjustment amount of the knob is Mi, so that the adjustability of the knob is strong.

Description

technical field [0001] The invention relates to a knob, and also relates to a method for controlling the knob. Background technique [0002] Knobs are used in various electrical appliances. When installing the knob on a panel, in order to ensure the sealing of the installation on the panel, a sealing ring is usually provided between the knob and the panel. For example, in the Chinese utility model patent "Induction Cooker and Knob Device" with the authorized announcement number CN202813494U (application number 201220382148.2), a sealing ring is provided between the disclosed knob and the panel, thereby preventing external water from entering the interior of the electrical appliance through the knob. , to further prevent the internal electronic components from being corroded or burned by water, thereby improving the safety performance and service life of electrical appliances. However, in this structure, the radial seal between the knob and the panel is mainly realized. Duri...

AI Technical Summary

Problems solved by technology

However, the radial seal between the knob and the panel is mainly realized in this structure. During long-term use, with the continuous use of the knob, the sealing ring will be worn, thereby reducing the sealing performance between the knob and the panel.

In addition, the control function of the knob is single. When using the knob to adjust the gear, especially when the adjustment gear is large, it needs to rotate a large angle to realize the adjustment of the large gear. The unit adjustment variable of the knob is fixed, and the adjustability is low.

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