Stator Laminations For New Energy Vehicle Motors

The present utility model relates to the field of new energy vehicle technology and specifically to a stator laminate for new energy vehicle motors. It includes a stator laminate body. A stator central hole is formed on its surface.A heat dissipation mechanism is also arranged on the surface of the laminate body. This mechanism contains heat dissipation grooves, heat dissipation components, and heat dissipation holes.A magnetic flux distribution mechanism is positioned at the center of the stator surface. It includes stator slot components and T-shaped teeth.The stator laminate further includes a positioning and stacking mechanism on its surface. This mechanism contains positioning rods, positioning hole components, and grooves.

This utility model not only enhances the maximum torque and starting torque of new energy vehicle motors, but also improves efficiency and power factor. It enhances heat dissipation during stator laminations operation and facilitates stacking of the stator laminations.

Background Technology

New energy vehicles refer to automobiles that utilize unconventional automotive fuels as their power source (or employ conventional automotive fuels with novel onboard power systems), integrating advanced technologies in vehicle power control and propulsion. These vehicles feature advanced technical principles, incorporating new technologies and structures. The vast majority of existing new energy vehicles operate with electric motors as their primary power source, where stator laminations constitute a critical component.

Motors used in new energy vehicles are typically permanent magnet synchronous motors (PMSMs). Conventional PMSMs exhibit weaker magnetic forces and higher leakage reactance, resulting in reduced maximum torque and starting torque, along with lower efficiency and power factor. During operation, heat generated by the stator laminations in PMSMs used in new energy vehicles does not dissipate readily, hindering heat dissipation and leading to poor thermal performance of the stator laminations. The stator of motors used in new energy vehicles is composed of multiple stator laminations aligned and stacked together. Typically, these laminations rely solely on the stator bore for positioning during stacking, which affects the convenience of the stacking process.

High-efficiency stator laminations for new energy vehicle motors with enhanced cooling and magnetic flux design

Content of the Invention

The objective of this utility model is to provide a stator laminate for new energy vehicle motors. It addresses several problems in the prior art, including low maximum torque, low starting torque, reduced efficiency, low power factor, poor heat dissipation, and inconvenient stacking.

To achieve this objective, the utility model introduces the following technical solution. The stator laminate for new energy vehicle motors includes a stator laminate body. The surface of the laminate body contains a stator center hole. It also carries a heat dissipation mechanism. This mechanism includes heat dissipation grooves, heat dissipation components, and heat dissipation holes. In addition, the center of the laminate body features a magnetic flux distribution mechanism that includes stator slot components and T-shaped teeth. The laminate body also incorporates a positioning and stacking mechanism that contains positioning rods, positioning hole components, and grooves.

Preferably, the stator laminate body includes evenly spaced cooling slots arranged circumferentially. Cooling components sit inside these slots, and cooling holes appear between the cooling components.

Specific Implementation Method

Figures 1 and 2 show the structure of the stator laminations for new energy vehicle motors described in this utility model. The structure includes a stator lamination body 1. The surface of the lamination body 1 contains a stator central hole. It also includes a heat dissipation mechanism 2. This mechanism contains heat dissipation slots 201, heat dissipation components 202, and heat dissipation holes 203.

The heat dissipation slots 201 appear at equal intervals around the surface of the stator lamination body 1. Heat dissipation components 202 sit inside the heat dissipation slots 201. Heat dissipation holes 203 sit between these components. Each heat dissipation component 202 includes arc-shaped holes 2021 and support rods 2022. The surface of the lamination body 1 contains arc-shaped holes 2021 arranged circumferentially at equal spacing. Support rods 2022 are welded to both sides of each arc-shaped hole 2021. Heat dissipation holes 203 appear between the arc-shaped holes 2021 and sit directly on the surface of the lamination body 1.

During operation, the stator lamination body 1 receives continuous cooling through the arc-shaped holes 2021 and heat dissipation holes 203. The support rods 2022 reinforce the arc-shaped holes 2021 and keep them stable. At the same time, heat generated by the stator lamination body 1 flows outward along the heat dissipation slots 201. As a result, the stator laminate achieves efficient heat dissipation.

High-precision stator laminations for new energy vehicle motors, optimized magnetic flux and cooling structure