Resolver Stator Insulator Wire Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing resolver stator designs are prone to accidental damage of connecting wires during the winding process and handling, as they can be cut off by winding machines or touched by operators, leading to increased manufacturing costs due to the need for adhesive application to prevent direct contact.
Innovation Solution
The resolver stator design incorporates a ring-shaped stator core with tooth parts and an insulator that guides and protects the connecting wires, using protrusions and access passages to secure them in place, preventing direct contact and damage during handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive is applied to cover the connecting wire to prevent direct contact, then the connecting wire is protected from damage, but the manufacturing cost increases
Solution Approach 1:
The patent introduces an insulator as an intermediary component between the connecting wire and the external environment. The insulator includes a through-hole that guides and protects the connecting wire, preventing direct contact with hands during handling while avoiding the need for adhesive application. This structural intermediary solves the contradiction by providing protection through design rather than additional manufacturing processes.
2Ease of operation
If the connecting wire is disposed on the end face of the yoke part, then access is easier, but the wire is more exposed to damage during handling
Solution Approach 1:
The insulator acts as an intermediary structure that provides both accessibility and protection. The through-hole allows the wire to be accessed and connected, while the insulator material surrounding the wire prevents direct hand contact. This resolves the contradiction by allowing operational access while maintaining protective enclosure.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A resolver stator (1) includes a stator core (4) including a ring-shaped stator core main body (8), and a plurality of tooth parts (9) protruding radially inward from the stator core main body (8), an insulator (5) disposed radially inward with respect to the stator core main body (8), a plurality of coils (10) wound around the plurality of tooth parts (9) respectively, and a connecting wire (11) configured to electrically connect the plurality of coils (10) to one another. The insulator (5) includes an insulator main body (20) having an insulator main body inner surface (25) facing radially inward, and a protruding part (21) protruding radially inward beyond the insulator main body inner surface (25). The connecting wire (11) is opposed to the protruding part (21) in an axial direction and also opposed to the insulator main body inner surface (25) in a radial direction.