Humanoid Robot Battery Module Layout for Center-of-Gravity Balance
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Solution Overview
Problem
The placement of a secondary battery on the back of a bipedal humanoid robot causes a significant offset of the robot's center of gravity, complicating balance control and posture stability.
Innovation Solution
A secondary battery unit is designed with a first module placed at the front or back of the robot's body, a second module positioned around the body intersecting with the front-and-rear direction, and a detachable base coupling these modules together, allowing for even distribution and reduced offset of the center of gravity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the secondary battery is disposed on the back of the robot to downsize the external shape, then the volume of the secondary battery is reduced, but the center-of-gravity position is offset greatly rearward from the center axis
Solution Approach 1:
The secondary battery is divided into multiple modules (first secondary battery module and second secondary battery module) that are distributed at different locations on the robot body. The first module is disposed at the front part and the second module at the back part, segmenting the battery system to balance the center of gravity while maintaining compact overall volume.
Solution Approach 2:
The patent transitions from a single centralized battery location to a multi-dimensional distribution of battery modules across the robot body. By placing modules in both front-and-rear direction and left-right direction, the solution uses spatial dimensionality to achieve center-of-gravity balance while keeping the robot compact.
2Volume of moving object
If the secondary battery projects greatly from the rear, then the volume occupied by the battery is reduced, but the balance control becomes complicated and difficult
Solution Approach 1:
The battery system is segmented into multiple modules distributed across the robot body rather than concentrated at the rear. This segmentation allows the center of gravity to remain closer to the robot's center axis, simplifying balance control while still achieving compact overall volume.
Solution Approach 2:
Different regions of the robot body are assigned different battery modules based on local requirements. The first module is placed at the front part and the second module at the back part, creating non-uniform local distribution that achieves global balance and simplifies control complexity.
Data Source
AI summary
A secondary battery unit includes a first secondary battery module disposed at at least either one of a front part or a back part of a body of a humanoid robot, a second secondary battery module disposed around the body in a direction intersecting with a front-and-rear direction of the body, and a base coupling the first secondary battery module to the second secondary battery module. The base is detachably attached to the body, together with the first secondary battery module and the second secondary battery module.