Lightweight structure for automobile wheel hub motor

A lightweight technology for automobile hubs, applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve problems such as easy deviation between hubs and withdrawal motors, affect safety and service life, and poor heat dissipation performance, etc., to achieve guaranteed Effects of weight reduction, weight reduction, and accuracy improvement

Inactive Publication Date: 2020-01-10
GUILIN UNIV OF AEROSPACE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current in-wheel motor structure generally fixes the integrated hub directly on the rotor of the direct drive motor. This structure, due to the integrated structure of the hub, is heavy in weight and poor in heat dissipation. At the same time, the hub It is prone to offset with the withdrawal motor at high speed. This kind of cheapness will cause great wear to the hub or main shaft over time, seriously affecting safety and service life.

Method used

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  • Lightweight structure for automobile wheel hub motor
  • Lightweight structure for automobile wheel hub motor
  • Lightweight structure for automobile wheel hub motor

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Embodiment Construction

[0022] see Figure 1~3 , in an embodiment of the present invention, a lightweight structure for an automobile hub motor, comprising an outer hub 11, an inner clamping hub 7, an outer rotor 5, an inner stator 4, and a main shaft 1, wherein the outer periphery of the outer hub is provided with a fixed The seat 10 of the tire, the inner clamping hub 7 is fitted and fixed in the outer hub 11 and is fixedly connected with the outer hub 11 by bolts, the center of the outer hub 11 and the inner clamping hub 7 is supported by a bearing The main shaft 1 is characterized in that a driving cavity is formed between the outer hub 11 and the inner clamping hub 7, and a positioning seat 2 fixed on the main shaft is arranged in the driving cavity. The inner stator 4 is fixedly arranged on the stator seat 3, the outer rotor 5 is fixedly arranged on the inner side of the inner clamping hub 7, the outer rotor and the inner stator are configured as a direct drive motor, and the outer hub 11 and ...

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Abstract

The invention relates to the technical field of wheel hub motors, and discloses a lightweight structure for an automobile wheel hub motor. The lightweight structure adopts a split-type structure in which an inner clamping hub and an outer wheel hub are fixedly connected, the weight of a wheel hub can be effectively reduced and the supporting force of the wheel hub can be ensured, and meanwhile, aninner roller ring is arranged inside to effectively improve the supporting ability. A dynamic pressure rotating ring head is arranged, the dynamic pressure rotating ring head and an annular oil filmgroove are configured to generate dynamic pressure oil film support when relative rotation occurs, the accuracy of the wheel hub during high-speed rotation can be effectively improved, and the abrasion of the wheel hub and a main shaft due to deflection are avoided. A gap adjusting snap ring facilitates the gap adjusting treatment during assembly, and the assembly accuracy is effectively guaranteed. The lightweight structure adopts the wheel hub of an arc ball structure, the supporting strength can be effectively improved, and the lightweight requirements are met.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a lightweight structure for an automobile wheel hub motor. Background technique [0002] With the continuous consumption of fossil energy such as coal, oil, and natural gas and the continuous deterioration of environmental conditions, electric vehicles that are pollution-free, low-noise and independent of fossil energy have gradually become an important development trend in the automotive industry. In recent years, countries all over the world have taken electric vehicles as a hot spot for scientific research. Among the various driving methods of electric vehicles, the in-wheel motor driving method is gradually favored by people in the industry due to its unique advantages such as high transmission efficiency and flexible control, and there is a huge room for future development. [0003] The current in-wheel motor structure generally fixes the integrated hub directly on the rotor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K7/00H02K7/00
CPCB60K7/0007H02K7/006
Inventor 韦韬
Owner GUILIN UNIV OF AEROSPACE TECH
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