Dynamic Rotor Design to Prevent Battery Connection Degradation
Here’s PatSnap Eureka !
Summary
Problems
Existing methods for attaching secondary batteries to rotating portions in factory automation devices do not adequately address the challenges of battery expansion due to temperature changes, leading to potential disconnection and degradation of the battery connection, which affects the reliability and longevity of the device.
Innovation solutions
A rotator design is proposed where a flat secondary battery is connected to a substrate with a terminal, with one of the electrode cans having a larger expansion amount facing the substrate, allowing for controlled expansion and maintaining electrical contact, thereby reducing degradation and disconnection.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If the battery is attached to the substrate in a rotating portion, then the device can be powered continuously without frequent battery replacement, but the battery expansion due to temperature changes causes disconnection and degradation of the connection
Why choose this principle:
The patent applies the dynamics principle by making the battery can facing the substrate movable rather than fixed. The can is designed to move in the thickness direction of the substrate in response to thermal expansion, allowing it to dynamically adapt to temperature changes. This movement capability prevents connection disconnection while maintaining electrical contact, resolving the contradiction between extended battery service life and connection stability during rotation.
Principle concept:
If the battery is attached to the substrate in a rotating portion, then the device can be powered continuously without frequent battery replacement, but the battery expansion due to temperature changes causes disconnection and degradation of the connection
Why choose this principle:
The patent utilizes parameter changes by allowing the physical state of the battery can to change in response to temperature variations. The can's position in the thickness direction changes as a parameter when the battery undergoes thermal expansion during charging. This parameter change enables the system to accommodate expansion forces without compromising connection reliability, thereby extending the battery's operational duration.
Application Domain
Data Source
AI summary:
A rotator design is proposed where a flat secondary battery is connected to a substrate with a terminal, with one of the electrode cans having a larger expansion amount facing the substrate, allowing for controlled expansion and maintaining electrical contact, thereby reducing degradation and disconnection.
Abstract
A rotator includes a rotating portion and a device fixed to the rotating portion, and the device includes a substrate and a flat secondary battery connected to the substrate via a terminal. The secondary battery includes an exterior body and a positive electrode and a negative electrode disposed in the exterior body. The exterior body includes a positive electrode can and a negative electrode can. The flat secondary battery is disposed in such a manner that one of the positive electrode can and the negative electrode can having a larger expansion amount on a central axis of the exterior body than the other of the positive electrode can and the negative electrode can faces the substrate, when the flat secondary battery expands due to a high temperature in a charging state of the flat secondary battery.