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CN201409061Y - A hub motor connection structure - Google Patents

A hub motor connection structure Download PDF

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Publication number
CN201409061Y
CN201409061Y CN2009201312490U CN200920131249U CN201409061Y CN 201409061 Y CN201409061 Y CN 201409061Y CN 2009201312490 U CN2009201312490 U CN 2009201312490U CN 200920131249 U CN200920131249 U CN 200920131249U CN 201409061 Y CN201409061 Y CN 201409061Y
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CN
China
Prior art keywords
flexible member
internal stator
wheel hub
motor
boss
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2009201312490U
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Chinese (zh)
Inventor
郭松岳
钟凯丰
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BYD Co Ltd
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BYD Co Ltd
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Publication date
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Priority to CN2009201312490U priority Critical patent/CN201409061Y/en
Application granted granted Critical
Publication of CN201409061Y publication Critical patent/CN201409061Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

一种轮毂电机连接结构,包括:轮毂和与轮毂相连的轮轴以及电机的内定子和与内定子配合的外转子,其中,所述内定子具有中空结构,所述内定子套装在所述轮轴上,所述外转子与所述轮毂相连接,所述内定子的中空空间里至少竖直固定有一弹性元件,所述弹性元件与内定子接触并支撑内定子。本实用新型通过在中空的内定子中至少竖直设置一弹性元件使得电机的内定子通过弹性元件构成了新的减振装置,相当于将内定子由原来的非簧载质量转换为簧载质量,从而使得安装有该轮毂电机的车辆的垂向震动幅度减小,有利于提高乘车的舒适性。

A hub motor connection structure, comprising: a hub, a hub connected to the hub, an inner stator of the motor, and an outer rotor matched with the inner stator, wherein the inner stator has a hollow structure, and the inner stator is sleeved on the hub , the outer rotor is connected to the hub, at least one elastic element is vertically fixed in the hollow space of the inner stator, and the elastic element is in contact with and supports the inner stator. In the utility model, at least one elastic element is vertically arranged in the hollow inner stator so that the inner stator of the motor constitutes a new vibration damping device through the elastic element, which is equivalent to converting the inner stator from the original unsprung mass to the sprung mass , so that the vertical vibration amplitude of the vehicle installed with the in-wheel motor is reduced, which is beneficial to improving the ride comfort.

Description

A kind of wheel hub motor syndeton
Technical field
The utility model relates to a kind of wheel hub motor syndeton.
Background technology
Energy shortage and environmental pollution problems have become the subject matter of people's common concern in recent years, and soaring oil prices is a big factor of restriction people buying car, the electric automobile of exploitation zero discharge is one of important channel of head it off, at present, each automobile factory commercial city is at the research steps of accelerating electric automobile.
But the used type of drive of present most of electric automobile is concentrated motor-driven.And be not widely adopted as the wheel hub motor that industry is referred to as the final drive form of electric automobile, trace it to its cause, compare with centralized motor vehicle or traditional fuel combustion vehicle, adopt distributed wheel hub motor Drive Structure, though saved the gearbox of complicated heaviness, drive system such as power transmission shaft and differential mechanism, can improve transmission performance, optimize energy conversion ratio, but,, make the quality of wheel strengthen because wheel hub motor directly links to each other with wheel, and this part quality nonspring carried mass exactly, the increase of this part quality makes the vertical vibration amplitude of electric automobile increase, and directly has influence on the grounding characteristics of tire, be unfavorable for the dynamics Controlling of vehicle and the ride comfort that travels, feasible comfortableness by bus is also corresponding to be reduced.
The utility model content
The purpose of this utility model is to have increased when overcoming existing wheel hub motor directly links to each other with wheel the shortcoming of vehicle nonspring carried mass, and a kind of wheel hub motor syndeton that nonspring carried mass can be converted to spring carried mass is provided.
A kind of wheel hub motor syndeton of the present utility model, comprise: the internal stator of wheel hub and wheel shaft that links to each other with wheel hub and motor and the external rotor that cooperates with internal stator, wherein, described internal stator has hollow structure, described internal stator is sleeved on the described wheel shaft, described external rotor is connected with described wheel hub, at least vertically is fixed with a flexible member in the hollow space of described internal stator, and described flexible member contacts and support internal stator with internal stator.
The utility model makes the internal stator of motor constitute new vibration absorber by flexible member by a flexible member at least vertically is set in the internal stator of hollow, be equivalent to internal stator is converted to spring carried mass by original nonspring carried mass, thereby the feasible vertical vibration amplitude that the vehicle of this wheel hub motor is installed reduces, and helps improving comfortableness by bus.
Description of drawings
Fig. 1 is the structural representation of a kind of execution mode of wheel hub motor syndeton of the present utility model.
Embodiment
Below in conjunction with accompanying drawing execution mode of the present utility model is elaborated.
Before being elaborated, at first need to prove, do not having under the situation of specified otherwise, " upper end " mentioned in the utility model claims and specification be meant along the flexible member end of (upside among Fig. 1) straight up, and " lower end " is meant along the flexible member end of (downside among Fig. 1) straight down.
According to a kind of execution mode of the present utility model, as shown in Figure 1, a kind of wheel hub motor syndeton, comprise: the internal stator 2 of wheel hub and wheel shaft 3 that links to each other with wheel hub and motor and the external rotor 5 that cooperates with internal stator 2, wherein, internal stator 2 has hollow structure, internal stator 2 is sleeved on the wheel shaft 3, external rotor 5 is connected with wheel hub, at least vertically is fixed with a flexible member in the hollow space of internal stator 2, and described flexible member contacts and support internal stator 2 with internal stator 2.
Further, also vertically be provided with a flexible member on the outer surface of internal stator 2, this flexible member lower end is connected with the outer surface of internal stator 2, and a boss for example is set on the outer surface of internal stator 2, and this flexible member is installed on the boss.The upper end of this flexible member can be connected with the chassis of vehicle, can be together in parallel with the original suspension system of vehicle like this, thereby better clamp and internal stator 2 is converted to spring carried mass by nonspring carried mass.
Motor comprises internal stator 2 and external rotor 5, and wherein internal stator 2 has hollow structure, so just internal stator 2 can be sleeved on the wheel shaft 3, and promptly wheel shaft 3 passes the center of internal stator 2 and is connected with wheel hub.
External rotor 5 is connected with wheel hub, for example can both be linked together by various suitable manner such as welding, bolt connections, external rotor 5 just can rotate together with wheel hub like this, rotates thereby drive the tire 1 that assembles with wheel hub, and then can drive wheels travel.
Because internal stator 2 has hollow structure, so brake 4 can be arranged in the internal stator 2, helps saving the space in the wheel hub; The clamp of brake 4 can be installed on the inwall of internal stator 2, and the clamp of brake 4 and internal stator 2 are converted to spring carried mass via the effect of flexible member with nonspring carried mass together like this.
In the hollow space of internal stator 2, can at least vertically fixedly install a flexible member.
According to a kind of execution mode of the present utility model, can a boss be set at least vertically on wheel shaft, boss can make progress, also can be downward.The length of boss can be shorter than flexible member, and flexible member is sleeved on the boss and with the inwall of internal stator 2 and contacts, and perhaps the inwall at internal stator 2 is provided with a recess, and flexible member can stretch into this recess.Boss can be for flexible, and boss also can play damping effect when boss and flexible member are isometric like this.
According to another kind of execution mode of the present utility model, an extension board is arranged on the wheel shaft horizontal direction, a boss at least vertically is set on this extension board, boss can make progress, also can be downward.The length of boss can be shorter than flexible member, and flexible member is sleeved on the boss and with the inwall of internal stator 2 and contacts, and perhaps the inwall at internal stator 2 is provided with a recess, and flexible member can stretch into this recess.Boss can be for flexible, and boss also can play damping effect when boss and flexible member are isometric like this.
In order to keep internal stator 2 stress balances, be preferably on the horizontal direction of the wheel shaft left and right sides and be provided with extension board, two boss are set respectively on the symmetric position of two extension boards, boss can make progress, also can be downward.The length of boss can be shorter than flexible member, and flexible member is sleeved on the boss and with the inwall of internal stator 2 and contacts, and perhaps the inwall at internal stator 2 is provided with a recess, and flexible member can stretch into this recess.Boss can be for flexible, and boss also can play damping effect when boss and flexible member are isometric like this.
Further, all be symmetrical arranged two boss up and down, 4 boss are so just arranged at two extension boards, equal suit one flexible member on each boss, flexible member contacts with inwall with internal stator 2, and perhaps the inwall at internal stator 2 is provided with a recess, and flexible member can stretch into this recess.Boss can be for flexible, and boss also can play damping effect when boss and flexible member are isometric like this.
Flexible member can comprise spring and damping; Also can be other various suitable elements that can play effectiveness in vibration suppression with spring function.
According to another kind of execution mode of the present utility model, centre position as flexible member on flexible member is provided with a motor or electro-motor, this motor or electro-motor can be regulated flexible member length according to the control signal that receives, thereby regulate the rigidity of flexible member and the effect of damping.So just can adapt to different pavement behavior, thereby improve the ride comfort of vehicle under different road conditions.This flexible member is flexible member in the internal stator 2 and/or the flexible member on internal stator 2 outer surfaces.
The utility model is by being provided with flexible member in the hollow space of internal stator 2, thereby make internal stator 2 and clamp be converted to spring carried mass by nonspring carried mass, thereby, adjusting device such as motor can carry out regulating automatically in real time to the rigidity and the damping of flexible member by being set on flexible member, improved the vertical vibration amplitude of wheel hub motor electric motor car greatly, the grounding characteristics of tire, be more conducive to the dynamics Controlling of vehicle and the ride comfort that travels, also can make comfortableness by bus improving.

Claims (7)

1, a kind of wheel hub motor syndeton, comprise: the internal stator of wheel hub and wheel shaft that links to each other with wheel hub and motor and the external rotor that cooperates with internal stator, it is characterized in that, described internal stator has hollow structure, described internal stator is sleeved on the described wheel shaft, described external rotor is connected with described wheel hub, at least vertically is fixed with a flexible member in the hollow space of described internal stator, and described flexible member contacts and support internal stator with internal stator.
2, wheel hub motor syndeton according to claim 1 is characterized in that, vertically is provided with boss on the described wheel shaft, and described flexible member is installed on the described boss.
3, wheel hub motor syndeton according to claim 1 is characterized in that, the horizontal direction of described wheel shaft is provided with extension board, vertically is provided with boss on the described extension board, and described flexible member is installed on the described boss.
4, wheel hub motor syndeton according to claim 3 is characterized in that, the described wheel shaft left and right sides is equipped with two extension boards, with the following boss that all vertically is provided with, is set with flexible member on the described boss above the described extension board.
5, according to any described wheel hub motor syndeton in the claim 1 to 4, it is characterized in that, also vertically be provided with a flexible member that links to each other with vehicle chassis on the outer surface of described internal stator.
6, wheel hub motor syndeton according to claim 5 is characterized in that, described flexible member is provided with motor or electro-motor, described motor or electro-motor be used to regulate flexible member length.
7, wheel hub motor syndeton according to claim 6 is characterized in that, described flexible member comprises spring and damping.
CN2009201312490U 2009-04-30 2009-04-30 A hub motor connection structure Expired - Lifetime CN201409061Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201312490U CN201409061Y (en) 2009-04-30 2009-04-30 A hub motor connection structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201312490U CN201409061Y (en) 2009-04-30 2009-04-30 A hub motor connection structure

Publications (1)

Publication Number Publication Date
CN201409061Y true CN201409061Y (en) 2010-02-17

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103318423A (en) * 2013-06-07 2013-09-25 南京航空航天大学 Manned lunar rover
CN107448513A (en) * 2017-08-18 2017-12-08 江苏大学 The electromagnetic braking of wheel hub motor ring type and separate type damping integrated apparatus
CN108462271A (en) * 2018-03-12 2018-08-28 宁勤顺 The brushless direct current motor of included torsion slow start slow stop and its application
CN111181303A (en) * 2020-02-21 2020-05-19 苏州行至动力技术有限公司 Shock-absorbing noise-reducing switched reluctance hub motor control system and working method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103318423A (en) * 2013-06-07 2013-09-25 南京航空航天大学 Manned lunar rover
CN107448513A (en) * 2017-08-18 2017-12-08 江苏大学 The electromagnetic braking of wheel hub motor ring type and separate type damping integrated apparatus
CN107448513B (en) * 2017-08-18 2018-11-09 江苏大学 The electromagnetic braking of wheel hub motor ring type and separate type damping integrated apparatus
CN108462271A (en) * 2018-03-12 2018-08-28 宁勤顺 The brushless direct current motor of included torsion slow start slow stop and its application
CN108462271B (en) * 2018-03-12 2024-11-19 佛山勤顺科技有限公司 Brushless DC motor with self-torque slow start and slow stop and its application
CN111181303A (en) * 2020-02-21 2020-05-19 苏州行至动力技术有限公司 Shock-absorbing noise-reducing switched reluctance hub motor control system and working method thereof

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CX01 Expiry of patent term

Granted publication date: 20100217

CX01 Expiry of patent term