Battery Cover Wireless Induction Charging
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Solution Overview
Problem
Existing methods for charging chargeable batteries in electric appliances often require frequent battery removal and insertion or the use of external wired power sources, which can lead to damage, dust ingress, and complexity, especially for devices without built-in charging circuits.
Innovation Solution
A battery cover with a non-touch induction mode using an RF emitter and a non-touch induction type electric power generating unit, including a first harmonic oscillation circuit, rectifying wave filtering circuit, and electric charging circuit, allows for wireless charging of batteries without removing them from the appliance or using external power sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If chargeable batteries are frequently removed and inserted for charging, then batteries can be charged externally, but operation time is lost and ease of operation deteriorates
Solution Approach 1:
The battery cover enables the battery to charge itself wirelessly through induction coupling between the coil in the cover and the coil in the battery, eliminating the need for external charging devices or manual removal of batteries. The system serves itself by establishing an automatic wireless charging connection when the cover is attached to the appliance.
Solution Approach 2:
The patent replaces the mechanical connection method (physical plugging and unplugging of power cords or removing batteries) with a wireless induction charging system. The electromagnetic field coupling between coils eliminates mechanical interactions, thereby improving ease of operation and preventing damage from frequent manual handling.
2Ease of operation
If wired external power sources are used for charging, then batteries can be charged without removal, but device complexity increases due to conductors and transformers
Solution Approach 1:
The patent extracts the charging function from the main appliance body and relocates it to the battery cover. The coil for wireless charging is placed in the cover rather than in the appliance, simplifying the appliance structure while maintaining charging capability. This extraction allows the charging function to be added without increasing the complexity of the original device.
Solution Approach 2:
The battery cover serves multiple functions: it protects the battery compartment, provides wireless charging capability, and can be removed and reused on different appliances. This multi-functionality reduces the need for separate charging devices and minimizes overall system complexity.
3Use of energy by moving object
If wired charging connections are used, then power can be supplied continuously, but reliability decreases due to damage, dust ingress, and oxidation
Solution Approach 1:
The patent replaces mechanical electrical connections (power cords and plugs) with wireless induction coupling. The electromagnetic field transmission through air or space eliminates physical contact points that are susceptible to damage, dust, moisture, and oxidation, thereby significantly improving the reliability and durability of the charging connection.
Solution Approach 2:
The patent introduces an electromagnetic field as an intermediary medium to transfer energy between the charging source and the battery. This field-based transmission medium replaces direct physical electrical contact, eliminating the harmful effects of dust, moisture, and mechanical wear on connection reliability.
4Productivity
If multiple electric appliances are charged using wired connections, then each appliance can be charged independently, but loss of time increases due to managing multiple conductors
Solution Approach 1:
The patent replaces multiple physical power cords and connectors with wireless induction charging. Each appliance with a battery cover can be charged by simply placing it near the charging source without plugging in cords, eliminating the time-consuming task of managing, connecting, and collecting multiple conductors while maintaining independent charging capability for each device.
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
Enables wireless charging of batteries within electric appliances, reducing the need for frequent battery detachment and assembly, avoiding cumbersome power lines, and allowing for easy replacement of batteries, thus enhancing convenience and reducing environmental impact.
Implementation Method 1
a non-touch induction type electric power generating unit, which includes a first coil, a rectifying wave filtering circuit connecting with the first harmonic oscillation circuit, and an electric charging circuit connecting with the rectifying wave filtering circuit to charge batteries; when the electric appliance loaded with the battery cover of the present invention is placed in an effective wireless inducing zone of the RF emitter, the battery cover can generate electric power in a wireless inducing mode to charge the batteries through the set of pins
Data Source
AI summary
A battery cover suitable for being used to cover a battery groove of an electric appliance such as a game controller, a remote controller, a mobile phone, a multi-medium player, a wireless mouse, a flashlight, a PDA, a digital camera etc. to generate electric power in a wireless inducing mode, for charging chargeable batteries that can thus supply electric power for operation of an electric appliance. Therefore, when a user is desired to electrically charge the chargeable batteries, it needs not to take the chargeable batteries out of the electric appliance, but needs only to directly place the electric appliance in an effective wireless induction zone to make the battery cover generate electric power in a wireless inducing mode to charge the batteries.