Split-Type Electromagnetic Induction Charging Device for Compact Power Supply
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Solution Overview
Problem
Existing chargeable electrical devices, such as flashlights and shavers, require larger sizes and higher costs due to the need for voltage-transforming devices and increased copper wire usage in traditional charging methods.
Innovation Solution
An electromagnetic induction device with a split-type electrical body and charging body, featuring a first and second coil arrangement within an annular sleeve-joint structure, allowing for reduced coil size, product size, and copper wire consumption, enabling efficient power supply through electromagnetic induction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional charging methods with voltage-transforming devices are used, then reliable power supply is achieved, but device size increases and manufacturing cost increases
Solution Approach 1:
The patent replaces traditional mechanical voltage-transforming devices with an electromagnetic induction system consisting of a transmitting coil and receiving coil. This substitution eliminates the need for bulky voltage transformers and complex wiring, achieving reliable power transfer while significantly reducing device size. The electromagnetic field-based power transmission replaces the mechanical/electrical transformation components that previously increased device volume.
Solution Approach 2:
The patent embeds the transmitting coil within the housing structure of the electrical device, and the receiving coil is integrated into the charging base. This nested arrangement allows the coils to be positioned in close proximity for efficient electromagnetic coupling while utilizing the existing device structure, thereby maintaining reliable power supply without increasing overall device size.
2Reliability
If traditional charging methods with extensive copper wiring are used, then power transmission reliability is ensured, but copper wire consumption increases and cost increases
Solution Approach 1:
The patent replaces extensive copper wiring with an electromagnetic induction system. Instead of using thick copper wires to transmit power directly, the system uses magnetic field coupling between coils to transfer energy wirelessly. This substitution dramatically reduces copper wire consumption while maintaining power transmission reliability through the electromagnetic induction mechanism.
Solution Approach 2:
The patent extracts the power transmission function from the copper wiring system and relocates it to the electromagnetic field. By separating the power transmission function from the physical wire connection, the system achieves reliable power transfer with minimal copper wire usage, as only the coils and basic circuitry are needed instead of extensive wiring.
3Volume of stationary object
If electromagnetic induction charging is implemented, then device size is reduced and copper wire consumption is reduced, but charging structure complexity increases
Solution Approach 1:
The patent nests the transmitting coil within the existing device housing and integrates the receiving coil into the charging base structure. This nested design allows the electromagnetic induction components to be incorporated without adding significant structural complexity, as the coils utilize the existing form factors and mounting structures of the devices.
Solution Approach 2:
The charging base structure serves multiple functions: it provides the receiving coil for electromagnetic induction, acts as the charging station housing, and functions as the interface for connecting to power sources. This multi-functionality reduces overall system complexity by combining several functions into a single integrated structure rather than requiring separate components for each function.
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 enables smaller, cost-effective electromagnetic induction charging devices by utilizing the electromagnetic induction between two coils to charge batteries and power loads, reducing product size and copper wire usage while maintaining efficient power delivery.
Implementation Method 1
the induced current was produced for the first coil (15) of the charging body (1) by flowing the charging current past to the second coil (23) by means of electromagnetic induction
Data Source
AI summary
An electromagnetic induction device of coil type for charging and supplying power, the device comprises a split type electrical body (1) and a charging body (2); wherein the electrical body (1) comprises a first casing (11), a first charging circuit board (12) fixed inside the first casing (11), a chargeable battery (13), a load (14) and a first coil (15) connected with the first charging circuit board (12); the charging body (2) comprises a second casing (21), a second charging circuit board (22) fixed inside the second casing (21), a second coil (23) connected with the first charging circuit board (22), a charging plug (24) installed in the second casing (21); the said second casing (21) with a annular sleeve-joint portion (211) sleeved outside of the first casing (11), and the second coil (23) is arranged in the annular sleeve-joint portion (211), and when the electrical body (1) is connected with the charging body (2) in sleeve mode, the first coil (15) is arranged right inside the second coil (23). The device can supply power to a battery of an electrical apparatus by means of non-contact manner.