Electric lifting/lowering mechanism
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Solution Overview
Problem
Conventional electric lifting mechanisms in smart furniture face limitations due to low voltage supply from controllers, leading to slow charging speeds and inadequate power delivery for high-power devices, with existing solutions failing to efficiently manage dual voltage requirements for both human-machine interaction and motor operation.
Innovation Solution
An electric lifting mechanism that utilizes a dual power circuit system, including a first power circuit for human-machine interaction and a second power circuit for the motor, allowing for the presentation of two different voltages through a common interface, with a power share block to increase output power and support high-power charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the controller supplies power through a single interface at low voltage (5V or 3.3V), then the human-machine interaction block can operate, but the output power is limited to not more than 10W, resulting in slow charging speed and inability to provide high-power charging
Solution Approach 1:
The power supply system is segmented into two independent power circuits: a first power circuit providing low voltage (5V or 3.3V) for the human-machine interaction block, and a second power circuit providing high voltage for high-power charging. This segmentation allows each circuit to operate at its optimal voltage level independently, resolving the contradiction between limited power output and device complexity.
Solution Approach 2:
The single interface is designed to support multiple functions by accepting both low-voltage connections for human-machine interaction and high-voltage connections for power sharing/charging. The interface universally supports both control signals and power transmission, eliminating the need for separate interfaces while maintaining simplicity.
2Ease of operation
If the controller is located beyond user accessibility, then controller design remains stable, but it is inconvenient for users to interact with or charge devices
Solution Approach 1:
The power share block is extracted from the controller and integrated into the human-machine interaction block. This allows the charging function to be physically relocated to an accessible position near the user, while the controller can remain in its stable, fixed location. The power share block acts as an independent power delivery unit that can be accessed without moving the controller.
Solution Approach 2:
The power share block serves as an intermediary between the controller and external devices requiring charging. It receives power from either power circuit and manages power delivery to external devices, mediating the power transmission function and enabling user-accessible charging without requiring direct user access to the controller.
3Power
If a single power circuit is used for both human-machine interaction and power sharing, then device complexity is reduced, but the output power is limited and cannot support high-power charging devices
Solution Approach 1:
The system dynamically selects which power circuit to use based on the power requirements of the connected device. The interface can switch between low-voltage mode for human-machine interaction and high-voltage mode for power sharing, adapting its power output dynamically to match the实际需求, thereby supporting both low-power and high-power operations without requiring permanent dual-circuit complexity.
Data Source
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AI summary
Disclosed is an electric lifting mechanism, which relates to height adjustable equipment and can present two different voltages via a common interface, thereby increasing an output power of a power share block. The electric lifting mechanism as disclosed includes a height adjustable platform, a human-machine interaction block, a controller arranged on the height adjustable platform, and a lifting column configured to drive the height adjustable platform to perform an up or down movement, the lifting column including a column and an electric motor driving the column to extend or retract, a human-machine interface being arranged on the controller, the human-machine interaction block being electrically connected to the human-machine interface; the controller includes a first power circuit and a second power circuit, the first power circuit being electrically connected to the human-machine interface to present a first supply voltage to the human-machine interaction block, the second power circuit presenting a second supply voltage to the electric motor; the electric lifting mechanism further includes a power share block arranged on the human-machine interaction block, the second power circuit being electrically connected to the human-machine interface to present the second supply voltage to the power share block so as to increase an output power of the power share block.