Multi-Head Power Tool Switching Control to Prevent Mis-Triggering
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Solution Overview
Problem
Existing power tools with multiple working heads face issues of chaotic and ineffective control due to mistakenly triggered control assemblies, leading to confusion and safety hazards, especially when switching between different functions.
Innovation Solution
A power tool with a switching assembly that allows switching between first and second positions to control the connection state of the drive assembly and output portions, combined with an identification unit and control unit to ensure correct operation of the control assemblies, preventing mistaken triggering and ensuring stable performance and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple independent control assemblies are arranged on the housing to separately control different functions, then the power tool can achieve multiple working modes, but the control assemblies are easy to be mistakenly triggered leading to chaotic and ineffective control
Solution Approach 1:
A switching assembly is introduced as an intermediary component between the user and the control assemblies. This switching assembly must be operated to enable or disable specific control assemblies based on the selected working mode. The intermediary prevents direct and accidental triggering of control assemblies, ensuring that only the control assembly corresponding to the currently selected working mode can be activated, thus resolving the contradiction between versatility and control accuracy.
2Adaptability or versatility
If multiple independent control assemblies are arranged on the housing to separately control different functions, then the power tool can achieve multiple working modes, but it leads to chaotic and ineffective control or even safety problems
Solution Approach 1:
The switching assembly is configured to preliminarily disable control assemblies that are not corresponding to the selected working mode. By using the switching assembly to preemptively block or enable specific control assemblies, the system prevents potential safety hazards before they can occur. This preliminary anti-action ensures that control assemblies for inactive working modes cannot be mistakenly triggered, thereby eliminating safety risks associated with chaotic control.
3Adaptability or versatility
If a single power tool adapts to multiple working heads for different functions, then the purchasing cost is reduced and it is convenient for the user, but the control assemblies are easy to be mistakenly triggered
Solution Approach 1:
The switching assembly requires the user to perform a preliminary action of switching before the control assembly becomes operational. This preliminary switching action clearly indicates the user's intention to use a specific working mode, and only after this action is the corresponding control assembly enabled. This preliminary action prevents accidental or mistaken triggering while maintaining ease of operation through a clear and intuitive switching mechanism.
Data Source
AI summary
The present disclosure relates to a power tool and a control method thereof. The power tool includes a drive assembly, a first output portion, a second output portion, a switching assembly to be operated by a user, an identification unit, a control unit, and a control assembly to be triggered by the user. The switching assembly switches one of the first output portion and the second output portion to be connected to the drive assembly, and the identification assembly identifies a working mode of the power tool. In response to a first working mode, the control unit controls the first control assembly to be in an effective state, and the control unit controls an operating state of the first output portion according to a signal input by the first control assembly; in response to a second working mode, the control unit controls the first control assembly to be in an ineffective state.