Geared Motor Board Slide-In Structure for Fast PCB Replacement
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Solution Overview
Problem
Conventional geared motors require cumbersome procedures for replacing the control board, necessitating detachment and reconnection of the entire motor case portion and wiring, which is inefficient and time-consuming.
Innovation Solution
A geared motor design that allows for the board accommodation member to be easily attached and detached relative to the geared motor body, with engagement portions facilitating sliding movement and accommodating the board in a position close to the motor, while incorporating heat dissipation features to prevent overheating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the control board is incorporated in the motor case portion, then the structure is compact and integrated, but the control board replacement becomes troublesome and time-consuming
Solution Approach 1:
The motor case portion is segmented into a motor case body and a separate cover portion. The control board is mounted on the cover portion, which can be detached from the body. This segmentation allows the control board to be accessed and replaced by simply removing the cover, without needing to detach the entire motor case or handle wiring connections, thus resolving the contradiction between structural integration and ease of repair.
2Device complexity
If the control board is incorporated in the motor case portion, then the structure is integrated, but the replacement work requires detaching the entire motor case and reconnecting wiring
Solution Approach 1:
By segmenting the motor case into a body and a detachable cover, the control board is positioned in the cover portion. This allows rapid replacement by simply detaching the cover, eliminating the time-consuming steps of detaching the entire motor case and reconnecting wiring, thus resolving the contradiction between structural integration and replacement time.
Solution Approach 2:
The control board is pre-mounted on the cover portion during assembly, with connectors positioned to automatically engage with the motor case body when the cover is attached. This preliminary arrangement of components enables quick replacement without requiring time-consuming wiring operations, resolving the contradiction between integration and replacement time.
3Ease of manufacture
If the board is positioned close to the motor, then wiring routing is simplified, but heat from the motor may cause board failure
Solution Approach 1:
The motor case is segmented into a body housing the motor and a separate cover portion housing the control board. The cover acts as a thermal barrier, physically separating the board from the motor's heat source while keeping them in close proximity. This segmentation allows simplified wiring routing within the integrated structure while protecting the board from thermal damage, resolving the contradiction between ease of manufacture and board reliability.
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3
AI summary
The present invention can provide a geared motor capable of facilitating attachment and detachment of a board. In a geared motor including a motor, and a rotating body that rotates by receiving power from the motor, the geared motor includes: a geared motor body; a board; and a board accommodation member that accommodates at least a part of the board. The board accommodation member is attachable to and detachable from the geared motor body in an accommodated state where at least a part of the board is accommodated, and is shiftable between an attached state where the board accommodation member is attached to the geared motor body and a detached state where the board accommodation member is detached from the geared motor body. When shifting to the attached state or the detached state is performed, one of the board accommodation member and the geared motor body is slid relative to the other with the board accommodation member staying in the accommodated state and the geared motor body engaged with each other.