Knob With Display Integrating Rotary Sensor And Reset Device
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Solution Overview
Problem
Conventional knobs in home appliances lack a display function and clear positioning indication, especially in gloomy environments, making it difficult for users to operate them effectively.
Innovation Solution
A knob with a display function featuring a rotary sensor, control circuit board, display screen, and reset device, along with a light guide ring and functional connection board, allowing for multi-stage functional changes and easy identification through encoded signals and visual feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional knobs or switches are used without display function, then the structure remains simple, but the positioning during rotation cannot be easily known especially in gloomy environment
Solution Approach 1:
The patent merges the display function with the knob structure by integrating a display screen into the knob body. The display screen is positioned within the knob and can show rotational position information, functional status, and operational feedback, combining the mechanical rotation capability with digital display information presentation in a single integrated component.
Solution Approach 2:
The display screen provides real-time feedback to users about the rotational position of the knob, the current functional mode, and operational status. This feedback mechanism allows users to clearly identify the positioning during rotation even in gloomy environments, as the display can illuminate and show visual indicators of the current state.
2Ease of operation
If display function is added to the knob, then the positioning identification is improved, but the device complexity increases
Solution Approach 1:
The knob is designed with multi-functionality, serving both as a mechanical rotation control and as a display unit. The display screen can show multiple types of information including rotational position, functional modes, and operational feedback, allowing a single component to perform multiple functions that would otherwise require separate elements.
Solution Approach 2:
The display screen is nested within the knob structure, with the display unit integrated into the body of the knob. This nesting approach allows the display functionality to be housed within the existing knob form factor, minimizing the increase in overall device complexity while adding the desired display capability.
3Ease of manufacture
If conventional switches with labels are used, then the manufacturing is simple, but the display function and multi-stage functional change are not provided
Solution Approach 1:
The patent replaces the mechanical label-based indication system with an electronic display system. Instead of relying on physical labels and markings that require manual interpretation, the display screen electronically presents information about rotational position and functional modes, enabling more versatile and programmable functional changes without complicating the manufacturing process.
Data Source
AI summary
A knob with a display function includes a chassis with a knob ring and a rotary sensor. A display screen, a control circuit board, a reset device and a functional connection board are sequentially installed onto the chassis. A circuit board bracket is installed between the display screen and the control circuit board. The functional connection board has a confirm button, a connection terminal disposed on the back of the functional connection board. The reset device has a through hole for extending the confirm button to the outside, an end abutting and connecting the control circuit board and the other end abutting and connecting the functional connection board. This invention has the features of simple structure and reasonable design and selects a function by turning the knob ring. With the reset device, the application of the invention has high reliability and provides easy identification.