Protective Case Static Elimination Circuit
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Solution Overview
Problem
Static electricity generated on the human body during dry seasons can cause discomfort and electric shocks when contacting conductive elements, necessitating effective elimination methods.
Innovation Solution
A mobile phone protective case equipped with a static electricity elimination device featuring conductive elements, a resistor, and an LED lamp, where the conductive elements form a circuit loop to consume static electricity, and the LED lamp visually indicates when the charge is eliminated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a static electricity elimination device is added to the protective case, then static electricity can be eliminated, but the device complexity increases
Solution Approach 1:
The static electricity elimination device is integrated into the protective case by incorporating conductive elements, resistors, and LED lamps within the case structure. The conductive elements are embedded in the case body, and the electronic components are mounted on the inner wall, merging the elimination function with the protective case into a unified structure.
Solution Approach 2:
The protective case serves multiple functions: it protects the mobile phone physically while simultaneously eliminating static electricity through the integrated device. The LED lamp provides both structural illumination and visual feedback for static electricity elimination status, demonstrating multi-functionality.
2Object-affected harmful factors
If conductive elements are exposed outside the case for contact, then static electricity elimination is enabled, but the reliability decreases due to potential conductive damage
Solution Approach 1:
Different portions of the conductive elements have different exposure levels. The first conductive element is partially exposed for user contact, while the second conductive element is fully exposed for contacting external objects. This localized differentiation optimizes both elimination functionality and durability for each contact scenario.
3Loss of information
If an LED lamp and resistor are installed in the case, then visual feedback for static electricity elimination is provided, but the device complexity increases
Solution Approach 1:
The LED lamp utilizes color changes to provide visual feedback about the static electricity elimination process. When the LED lamp illuminates, it visually indicates that static electricity is being consumed, giving users real-time information about the elimination status without requiring complex display systems.
4Object-affected harmful factors
If the conductive elements are arranged spaced apart, then the circuit loop is formed for static electricity consumption, but the device complexity increases
Solution Approach 1:
The circuit loop is automatically formed when the user touches the first conductive element and external objects touch the second conductive element. The spaced arrangement of conductive elements enables this self-activating circuit formation without requiring complex control mechanisms, as the physical contact itself completes the circuit and initiates static electricity consumption.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device effectively eliminates static electricity by consuming it through a resistor and provides visual confirmation through an LED lamp, ensuring user convenience and safety.
Implementation Method 1
a circuit loop between the first conductive element and the second conductive element is formed, the current is consumed through the resistor
Implementation Method 2
an LED lamp is provided, the LED lamp and the resistor are connected in series between the first and second conductive elements
Data Source
AI summary
A mobile phone protective case with static electricity elimination device includes a case and a static electricity elimination device. The case includes a bottom wall and a side wall. The side wall protrudes from a periphery of the bottom wall towards one side of the bottom wall. The side wall and the bottom wall enclose an accommodation cavity for accommodating a mobile phone. The static electricity elimination device is installed in the case and includes first and second conductive elements arranged spaced apart from each other, and a resistor and an LED lamp electrically connected between the first and second conductive elements, wherein the first and second conductive elements are at least partially exposed from the case. A receiving groove is defined in an inner side the case, and the resistor and the LED lamp are received in the receiving groove.