Power Control Circuit Sleep Mode for Jammed Nailing Gun Switches
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Solution Overview
Problem
Existing power control circuits and electric-powered nailing gun apparatuses with non-locked power switches are prone to damage from long-term use, leading to abnormal jamming or failure. This results in continuous power reception even when the devices are not in use, causing energy wastage and potential battery damage.
Innovation Solution
The proposed power control circuit and electric-powered nailing gun apparatus incorporate a capacitor, power connection unit, power converter, self-hold control unit, and a non-locked power switch. When the switch is grounded and the capacitor is fully charged, the self-hold control unit is turned off, causing the capacitor to stop charging and the circuit to enter a sleep mode, preventing continuous power reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a non-locked power switch is used to control power reception, then the device can be activated by simple user action, but the switch is prone to damage and abnormal jamming from long-term use
Solution Approach 1:
The patent introduces a capacitor as an intermediary energy storage element between the power switch and the power reception circuit. The capacitor charges when the switch is pressed and discharges to maintain power reception, isolating the switch from direct continuous power flow and reducing wear and jamming risks
Solution Approach 2:
The patent replaces the direct mechanical switch control mechanism with an electrical field-based control mechanism using a capacitor. Instead of relying on continuous mechanical contact, the system uses the capacitor's charging state to control power reception, eliminating the mechanical wear and jamming issues
2Reliability
If the non-locked power switch remains grounded due to abnormal jamming, then the specific circuit remains turned on, but the device continues to receive power and waste energy
Solution Approach 1:
The patent implements a feedback mechanism where the capacitor's charging state provides information about the switch's operational status. When the capacitor is fully charged, it stops accepting charge, creating a natural feedback signal that prevents continuous power reception even if the switch remains grounded due to jamming
Solution Approach 2:
The capacitor serves itself by automatically stopping charge acceptance when fully charged, without requiring additional control circuits or sensors. This self-service property ensures that power reception stops naturally when the capacitor reaches full charge, preventing energy waste from switch jamming
3Productivity
If the self-hold control circuit continuously supplies power to the electronic apparatus, then the device remains operational, but energy is wasted when the device is not in use
Solution Approach 1:
The patent implements periodic power supply through the capacitor's charge-discharge cycles. Power is supplied to the electronic apparatus in periodic bursts corresponding to capacitor discharge cycles, rather than continuously, thereby reducing energy consumption while maintaining operational availability during active periods
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
This solution effectively prevents the power control circuit or electric-powered nailing gun apparatus from remaining active due to abnormal jamming or failure of the non-locked power switch, thereby conserving energy and preventing battery damage.
Implementation Method 1
a capacitor (104), wherein the capacitor (104) is electrically connected to the non-locked power switch (163)
Data Source
AI summary
A power control circuit includes a non-locked power switch, a capacitor, a power connection unit, a power converter and a self-hold control unit. When the non-locked power switch is grounded and the capacitor is fully charged and the self-hold control unit is controlled to be turned off, the capacitor stops being charged by a power supply apparatus through the power connection unit and the power control circuit enters a sleep mode.