Electromagnetic Driving Device Inversion for Power Failure Reliability
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Solution Overview
Problem
Existing electromagnetic fan clutches and air pump devices are prone to failure when the power supply system malfunctions, leading to inadequate engine cooling and compromised braking system functionality, resulting in potential engine damage and safety hazards.
Innovation Solution
An electromagnetic driving device with a first and second driving device, and a first electrical control device that disengages or engages the second driving device with the driving disc based on energization or de-energization, ensuring continued operation even during power cuts, and a method for manufacturing and controlling this device to optimize cooling and braking performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If an electromagnetic clutch is used to control the fan or air pump, then the engine cooling and braking system can be optimized for efficiency, but the system becomes unreliable when the power supply fails
Solution Approach 1:
The patent inverts the traditional electromagnetic clutch design by making the engaged state the default (without power) and the disengaged state the controlled state (with power). This ensures that during power failure, the fan and air pump automatically engage and continue to provide cooling and braking functions, thereby resolving the reliability issue while maintaining productivity.
2Device complexity
If the electromagnetic clutch is designed with traditional engagement mechanism, then the structure is simple, but the device cannot operate during power cut
Solution Approach 1:
The patent applies the inversion principle by redesigning the engagement mechanism so that the fan and air pump are engaged by default (when power is off) and disengaged when power is on. This maintains structural simplicity while ensuring continuous operation during power failures, thus resolving the contradiction between device complexity and reliability.
3Ease of operation
If the fan rotation speed is controlled by energizing/de-energizing the coil, then the engine can be maintained in optimal state, but the system fails when power supply malfunctions
Solution Approach 1:
The patent inverts the control logic by making the fan engage automatically when power fails rather than requiring active control. This ensures that the cooling function remains reliable during power failures while still allowing for controlled operation during normal conditions, thus resolving the contradiction between ease of operation and reliability.
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 solution ensures reliable engine cooling and air pump operation even during power supply failures, preventing engine damage and ensuring safety by maintaining optimal engine conditions and air pump functionality.
Implementation Method 1
by controlling the energization or de-energization of a coil on an electromagnetic iron core
Implementation Method 2
the electromagnetic iron core 3' is provided inside an inner cavity of the driving disc 2'. The electromagnetic iron core 3' is mounted on the main shaft 1' via a bearing 5'
Data Source
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AI summary
The present invention provides an electromagnetic driving device that is resistant to failure, high practicable, safe and reliable and of a simple structure, and methods for manufacturing and controlling the electromagnetic driving device. The present invention aims to provide an electromagnetic driving device able to operate and serve the function of driving even if a power supply system of an electromagnetic clutch malfunctions or a sudden power cut occurs, avoiding the series of adverse effects caused by the failure of the electromagnetic clutch. The electromagnetic driving device comprises a driving disc (102; 202; 302; 402; 502; 602), and also a first driving device (106; 206; 306; 406; 506; 606), a second driving device (107; 207; 307; 407; 507; 607) and a first electrical control device (103; 104; 203; 204; 303; 304a; 403; 404; 503; 504; 603; 604). When the first electrical control device (103; 104; 203; 204; 303; 304a; 403; 404; 503; 504; 603; 604) is energized, the first electrical control device (103; 104; 203; 204; 303; 304a; 403; 404; 503; 504; 603; 604) drives the first driving device (106; 206; 306; 406; 506; 606) such that the second driving device (107; 207; 307; 407; 507; 607) is disengaged from the driving disc (102; 202; 302; 402; 502; 602). When the first electrical control device (103; 104; 203; 204; 303; 304a; 403; 404; 503; 504; 603; 604) is de-energized, the first electrical control device (103; 104; 203; 204; 303; 304a; 403; 404; 503; 504; 603; 604) drives the first driving device (106; 206; 306; 406; 506; 606) such that the second driving device (107; 207; 307; 407; 507; 607) is engaged with the driving disc (102; 202; 302; 402; 502; 602).