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Hub of a hub motor for an electric vehicle and a hub motor

A hub motor and electric vehicle technology, which is applied in the field of electric vehicles, can solve the problems of increased material consumption, less welding seams, and excessive wall thickness at non-fixed screw holes of the magnetic ring, so as to improve the bonding strength and support strength and ensure quality , to ensure the effect of dimensional consistency and structural stability

Pending Publication Date: 2019-01-22
TAIZHOU JINYU ELECTROMECHANICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the hubs of the hub motors used in electric vehicles are mostly made of iron thin steel plate rolled and welded pressed rims and magnetically conductive rings with uniform wall thickness welded on one side. The fixing screw holes have enough space and strength, and the thickness of the magnetic ring is designed according to the maximum size requirement. This structure leads to excess wall thickness of the non-fixing screw holes of the magnetic ring, which increases the amount of materials used, and the current wheel hub generally adopts single-sided welding Fixed to realize the positioning and fixing between the magnetic ring and the rim, less welds

Method used

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  • Hub of a hub motor for an electric vehicle and a hub motor
  • Hub of a hub motor for an electric vehicle and a hub motor
  • Hub of a hub motor for an electric vehicle and a hub motor

Examples

Experimental program
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Embodiment 1

[0025] like Figure 1 to Figure 3 As shown, the hub 1 of a hub motor for an electric vehicle provided in this embodiment is a 10-inch hub, including a rim 11 and a magnetic conducting ring 12, both of which are made of metal iron, and the inner circumference of the rim 11 is Surface and magnetic conduction ring 12 outer peripheral surfaces are matched for welding and fixing. The inner side of the magnetic ring 12 is a circumferential surface, which is used for pasting permanent magnets. The largest outer circumferential surface of the magnetic ring 12 cooperates with the inner ring of the rim 11 to ensure the accuracy of positioning and deformation support when the two are welded. Magnetic ring 12 is made of low-carbon steel, rim 11 is rolled and welded by thin-walled steel plate, and the exposed surface of wheel hub 1 is treated with anti-rust treatment. Anti-rust treatment methods such as spray painting, plastic spraying, and electrophoresis can be selected. Magnetic ring 12...

Embodiment 2

[0034] The technical solutions in this embodiment are mostly the same as those in Embodiment 1. This embodiment only describes the different parts in detail, and the parts that are the same as those in Embodiment 1 will not be repeated here. The motor used in the magnetic permeable ring 12 of this embodiment has a structure of 51 slots and 46 pieces of permanent magnets, and the outer diameter of the stator is 197 mm to 200 mm.

[0035] The inner diameter of the magnetic ring 12 is 190mm-280mm, preferably, the inner diameter of the magnetic ring 12 is 204mm-206mm, more preferably, in this embodiment, the inner diameter of the magnetic ring 12 is 205mm.

[0036] The outer diameter of the tooth top peripheral surface of the outer toothed boss 121 of the magnetic conduction ring 12 is 200 mm to 295 mm. Preferably, the outer diameter of the tooth top peripheral surface of the outer toothed boss 121 is 119 mm to 222 mm. More preferably, in this embodiment, The outer diameter of the...

Embodiment 3

[0038] The technical solutions in this embodiment are mostly the same as those in Embodiment 1. This embodiment only describes the different parts in detail, and the parts that are the same as those in Embodiment 1 will not be repeated here. The motor used in the magnetic permeable ring 12 of this embodiment has a structure of 48 slots and 52 pieces of permanent magnets, and the outer diameter of the stator is 203 mm to 205 mm.

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Abstract

The invention relates to a hub of a hub motor for an electric vehicle and a hub motor, including a rim and a magnetic ring, the rim and magnetic conductive ring are made of metal iron, the inner circumferential surface of the wheel rim and the outer circumferential surface of the magnetic permeable ring are arranged for welding and fixing, characterized in that: A plurality of outer toothed boss are uniformly distributed in the circumferential direction on the outer side of the magnetic conductive ring, The circumferential surface of the tooth top of the out tooth-shaped boss is matched with the circumferential surface of the inn side of the rim for welding and fixing, A magnetic permeable ring is formed by a non-uniform wall thickness stretch method or by uniformly distributing a plurality of individual outer toothed boss on that circumferential outside of an iron ring with uniform wall thickness and welding and fixing the root portions on both sides of the outer toothed boss and thejoints on the outer side of the iron ring to form an integral body, and fixed threaded holes uniformly distributed in the circumferential direction are arranged on the end planes on both sides of theaxial direction of the magnetic permeable ring. The invention has the beneficial effects that the outer toothed profile of the hub of the invention reduces weight and reduces cost, and simultaneouslythe outer toothed tooth top is welded by multiple spots, which is helpful to improve the bonding strength and the support strength of the hub, and furthermore, the tooth bottom cavity improves the rust prevention effect of the hub.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a hub of a hub motor for an electric vehicle and a hub motor. Background technique [0002] With its low-carbon environmental protection, energy saving, safety and reliability, stable performance, and low price, electric vehicles are suitable for various complex environments and are widely used in daily life transportation. The core component of an electric vehicle is the hub motor. The performance of the hub motor determines the load capacity, stability, safety, reliability and comfort of the electric vehicle during normal riding. Of course, the price of the motor is the most direct expression of market competitiveness, and The above parameters and characteristics of the motor are derived from the optimized design of the motor structure. Therefore, how to start with the motor structure and manufacturing process to achieve the stability and safety and reliability of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/22B60B21/12
CPCH02K1/22B60B21/12H02K2213/03Y02T10/86Y02T10/64
Inventor 王加许张忠
Owner TAIZHOU JINYU ELECTROMECHANICAL