Motor assembly
By setting up multiple layers of radially distributed windings and cooling channels within the insulation structure, the problem of uneven heating of windings in immersion-cooled motors is solved, achieving uniform and efficient cooling of the multi-layer windings.
CN121663862APending Publication Date: 2026-03-13CHINA FAW CO LTD
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Patent Information
- Application Number
- CN202511781502.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-29
- Publication Date
- 2026-03-13
AI Technical Summary
Technical Problem
In the existing technology, the coolant in the immersion-cooled motor has difficulty penetrating to each layer of the winding, resulting in uneven heating of different winding layers.
Method used
Multiple second mounting slots are provided within the insulation structure. Each slot contains multiple layers of radially distributed windings, and a first cooling channel is formed between adjacent windings, allowing coolant to flow from one end of the stator assembly to the other end, thereby achieving uniform cooling of the multiple windings.
Benefits of technology
This technology enables uniform cooling of multi-layer windings, improves cooling effect and efficiency, and solves the problem of uneven heating of windings.
✦ Generated by Eureka AI based on patent content.
Abstract
The motor assembly comprises a shell, a stator assembly and a rotor, the rotor is sleeved with the stator assembly, the shell is arranged on the periphery of the stator assembly, and a cooling cavity is formed between the shell and the stator assembly; the stator assembly comprises a stator, windings and an insulation structure, the stator is provided with a plurality of first mounting grooves distributed in the circumferential direction, the insulation structure is provided with a plurality of insulation plates distributed at intervals in the circumferential direction, the insulation plates are connected into the first mounting grooves in a one-to-one correspondence mode, each insulation plate is provided with a second mounting groove, and the windings comprise multiple layers. The multiple layers of windings are distributed in each second installation groove in the radial direction, a first cooling flow channel is formed between every two adjacent windings in the radial direction, cooling liquid enters the cooling cavity from one end of the shell and flows to the other end of the stator assembly in the axial direction from one end of the stator assembly in the axial direction through each first cooling flow channel, and uniform cooling of the multiple layers of windings is achieved. The problem that windings of different levels are heated unevenly is solved.
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