Waterproof Power Supply Shielding Battery from High-Frequency Heating
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Solution Overview
Problem
Existing waterproof power supply devices for wearable electronic products face challenges in sealing batteries effectively without damaging them due to high-frequency heating, which is used to eliminate gaps and prevent moisture ingress, but this process can harm the battery.
Innovation Solution
A power supply device design featuring a metallic plate between the battery and acting parts during high-frequency heating to shield the battery from energy damage, combined with a metallic ring that fuses the cover and main body using high-frequency heating to achieve a waterproof seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high-frequency heating is used to fuse the cover and main body for waterproof sealing, then the waterproof performance is improved, but the battery is damaged by the heating energy
Solution Approach 1:
A metallic plate is introduced as an intermediary component positioned between the battery and the high-frequency heating source. This metallic plate absorbs or reflects the heating energy, preventing it from reaching the battery while allowing the heating to proceed for sealing the cover to the main body. The mediator thus protects the battery from damage while enabling the waterproof sealing process.
2Duration of action of moving object
If the battery capacity is increased to extend standby time, then the power supply duration is improved, but the vulnerability to moisture and sweat infiltration increases
Solution Approach 1:
The power supply device merges the battery housing with the wearable strip body structure, integrating the battery protection function into the overall device design. The cover is sealed to the main body through high-frequency heating fusion, creating a unified waterproof enclosure that protects the battery while maintaining the flexible wearable form factor.
3Reliability
If a waterproof structure is implemented to prevent moisture ingress, then the battery protection is improved, but the device complexity increases
Solution Approach 1:
The waterproof structure utilizes a flexible cover and main body construction with integrated sealing. The high-frequency heating process creates a fusion seal between the cover and main body edges, forming a waterproof barrier without requiring additional complex gaskets or sealing mechanisms. The flexible nature of the materials maintains wearability while achieving effective moisture protection.
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 effectively seals the battery within the power supply device, providing excellent waterproof protection while preventing battery damage from high-frequency heating and enhancing the device's structural integrity for wearability.
Implementation Method 1
The metallic ring is positioned between the cover and the main body and heated by the high-frequency heating for fusion of the cover and the main body to seal up the battery in the receiving cavity
Implementation Method 2
The metallic plate is located between the battery and acting parts by the high-frequency heating to separate the energy of the high-frequency heating from the battery
Data Source
AI summary
A power supply device includes a main body defining a receiving cavity which has an opening, a battery and a metallic plate both disposed in the receiving cavity, a metallic ring mounted around the opening, and a cover disposed at the opening. The metallic ring is positioned between the cover and the main body and heated by the high-frequency heating for fusion of the cover and the main body to seal up the battery in the receiving cavity. The metallic plate is located between the battery and acting parts by the high-frequency heating to separate the energy of the high-frequency heating from the battery. The main body or the cover are provided with a connecting element of which one end is exposed in the receiving cavity to electrically connect the battery and the other end is exposed outside the power supply device to electrically connect an external electronic product.