阅读说明：本技术 用于车辆的轮毂马达组件和轴承单元 (Hub motor assembly and bearing unit for vehicle ) 是由 C.余瓦拉雅 K.斯利坎思 于 2019-06-27 设计创作，主要内容包括：本发明涉及用于车辆的轮毂马达组件和轴承单元。本文公开了一种用于车辆的轮毂马达组件(100)。该轮毂马达组件(100)包括：安装到轴(114)的定子(108)；安装到轮缘(102)并通过轴承单元(122)耦接到轴(114)的转子(104)；以及用于从电源向定子(108)供应电功率的线缆束(112)。轮毂马达组件100的特征在于该轴承单元(122)中的开口(110)用于将线缆束(112)布设至定子(108)。开口(110)形成在轴承单元(122)的内圈(116)中。开口(110)是形成在轴承单元(122)中的孔或孔口。本发明使得能够维持轴(114)的强度以及将线缆束(112)布设至定子(108)。公开了一种用于轴114的轴承单元(122)。(The invention relates to a hub motor assembly and a bearing unit for a vehicle. A hub motor assembly (100) for a vehicle is disclosed herein. The hub motor assembly (100) comprises: a stator (108) mounted to the shaft (114); a rotor (104) mounted to the rim (102) and coupled to the shaft (114) by a bearing unit (122); and a cable harness (112) for supplying electrical power from a power source to the stator (108). The hub motor assembly 100 is characterized in that an opening (110) in the bearing unit (122) is used for routing a cable bundle (112) to the stator (108). An opening (110) is formed in an inner ring (116) of a bearing unit (122). The opening (110) is a hole or aperture formed in the bearing unit (122). The invention enables maintaining the strength of the shaft (114) and routing the cable bundle (112) to the stator (108). A bearing unit (122) for a shaft 114 is disclosed.)

1. A hub motor assembly (100) for a vehicle, comprising: a stator (108) mounted to the shaft (114); a rotor (104) mounted to the rim (102) and coupled to the shaft (114) by at least one bearing unit (122); and a cable harness (112) for supplying electrical power from a power source to the stator (108), characterized by:

an opening (110) in the at least one bearing unit (122) for routing the cable bundle (112) to the stator (108).

2. The hub motor assembly (100) of claim 1, wherein the opening (110) is formed in an inner ring (116) of the bearing unit (122).

3. The hub motor assembly (100) of claim 1, wherein the opening (110) is formed in a bushing (302) in contact with an inner ring (116) of the bearing unit (122), and wherein the bushing (302) is located between the inner ring (116) and the shaft (114).

4. The hub motor assembly (100) of claim 1, wherein the opening (110) is formed at an interface of an inner ring (116) and a bushing (302) of the bearing unit (122) in such a way that the opening (110) is partly in the inner ring (116) and partly in the bushing (302), and wherein the bushing (302) is located between the inner ring (116) and the shaft (114).

5. The hub motor assembly (100) of claim 1, wherein the opening is a through hole.

6. The hub motor assembly (100) of claim 5, wherein the through hole is at least one of: is inclined, parallel and curved with respect to the central axis of the bearing unit (122).

7. The hub motor assembly (100) of claim 1, wherein the vehicle is any one of an automotive vehicle, a scooter, an automobile, an automotive vehicle, or the like.

8. Bearing unit (122) for a wheel axle (114) of a vehicle, comprising an inner ring (116), an outer ring (120) and a plurality of bearings (118) between the inner ring (116) and the outer ring (120), characterized in that,

an opening (110) provided in any one of the inner ring (116) and the outer ring (120) for a cable bundle (112) to pass through.

9. The bearing unit (122) of claim 8, wherein the opening (110) is a through hole.

10. The bearing unit (122) of claim 9, wherein the through hole is at least one of: is inclined, parallel and curved with respect to the central axis of the bearing unit (122).

Technical Field

The present invention relates to a hub motor assembly for a vehicle.

Background

According to patent document US 2012/0065825, an electric front wheel drive system for a motor vehicle is provided. A two-wheel drive motor vehicle has a motor generator driving front wheels, in addition to and independent of a conventional rear-wheel drive train, one embodiment of the invention. The front wheel drive disclosed herein may be adapted for a conventional automotive front wheel and a telescoping (or shock absorbing) front fork suspension system. The front wheel drive of the two-wheel drive vehicle can be applied to many different types of vehicles including off-road vehicles, endurance vehicles, two-sport vehicles, and recreational vehicles.

Drawings

Embodiments of the present disclosure are described with reference to the following drawings,

FIG. 1 illustrates a cross-sectional view of a first hub motor assembly according to one embodiment of the present invention;

FIG. 2 illustrates different views of a first bearing unit according to an embodiment of the invention;

FIG. 3 illustrates a cross-sectional view of a second hub motor assembly in accordance with an embodiment of the present invention; and

fig. 4 illustrates different views of a second bearing unit according to an embodiment of the invention.

Detailed Description

FIG. 1 illustrates a cross-sectional view of a first hub motor assembly according to one embodiment of the present invention. The hub motor assembly 100 for a vehicle includes: a stator 108 mounted to a shaft 114; a rotor 104 mounted to the rim 102 and coupled to the shaft 114 by at least one bearing unit 122; and a cable harness 112 for supplying electrical power from a power source (not shown) to the stator 108. Hub motor assembly 100 features an opening 110 in the at least one bearing unit 122, the opening 110 for routing a cable bundle 112 to stator 108. The opening 110 is formed in the inner race 116 of the bearing unit 122. The opening 110 is a hole or slot (of any size suitable for entry of different sized cables) formed in the bearing unit 122. A pair of covers 106 are secured on either side of the rim 102. The cover 106 is disposed on the bearing unit 122. It is to be understood that the other bearing unit is the same bearing unit 122 or a separate bearing unit without any openings 110. Another bearing unit is provided for the other side of the shaft 114.

According to one embodiment of the invention, the hub motor 100 comprises two bearing units 122, one for each side or side cover 106. The openings 110 are provided in two bearing units 122. The cable bundle 112 is routed through the openings 110 of the two bearing units 122.

Fig. 2 illustrates different views of a first bearing unit according to an embodiment of the invention. The bearing unit 122 shown in fig. 1 and 2 is referred to as a first bearing unit 122. Reference numeral 210 illustrates a front view of the first bearing unit 122. Reference numeral 220 illustrates a side sectional view of the first bearing unit 122. Reference numeral 230 illustrates a perspective view of the first bearing unit 122. The width or thickness of inner race 116 and outer race 120 are different, i.e., the width of inner race 116 is greater than the width/thickness of outer race 120 to accommodate opening 110. The bearings 118 used are roller or ball bearings or any other type of bearing that can withstand radial and axial loads.

FIG. 3 illustrates a cross-sectional view of a second hub motor assembly according to one embodiment of the present invention. The second hub motor assembly 100 is identical to the first hub motor assembly 100, but the opening 110 is formed in the bushing 302 instead of in the inner ring 116 of the bearing unit 122. The bushing 302 is located between the inner race 116 and the shaft 114. The bearing unit 122 shown in fig. 3 and 4 is referred to as a second bearing unit 122. The bushing 302 is mounted in contact with the inner race 116. Compared to fig. 1 and 2, the inner ring 116 of the second bearing unit 122 is thinner, i.e. the dimensions of the inner ring 116 are of a standard type (which is commercially available corresponding to a corresponding type of vehicle), i.e. no custom bearing is required, as is the case with the first bearing unit 122 in fig. 1. The bushing 302 is press-fitted to the inner race 116 of the bearing unit 122, and a subassembly of the second bearing unit 122 with the bushing 302 is fitted on the shaft 114. In fig. 1, the bushing 302 and the inner race 116 are provided as a unitary or single component.

According to an embodiment of the invention, the opening 110 is formed at the interface of the inner race 116 and the bushing 302 of the bearing unit 122. The opening 110 is formed in such a manner that: such that opening 110 is partially in inner race 116 and partially in bushing 302. The bushing 302 is located between the inner race 116 and the shaft 114.

Fig. 4 illustrates different views of a second bearing unit according to an embodiment of the invention. Reference numeral 410 illustrates a front view of the second bearing unit 122. Reference numeral 420 illustrates a side sectional view of the second bearing unit 122. Reference numeral 430 illustrates a perspective view of the second bearing unit 122. The second bearing unit 122 is similar to the first bearing unit 122 except for the addition of the bushing 302.

According to an embodiment of the present invention, the vehicle is any one of an automobile, a scooter, an automobile, an automatic human powered vehicle, and the like, or anywhere where the hub motor is used. The rotor 104 of the hub motor assembly 100 includes a plurality of permanent magnets arranged around the inner surface of the rim 102. The stator 108 includes a field coil (not shown) and is connected to a power source (not shown). The power source is at least one of a battery, a generator, a fuel cell, and the like.

According to another embodiment of the present invention, the opening 110 is a through hole. The axis of the through-hole is any one of inclined, parallel, and curved with respect to the central rotational axis of the bearing unit 122.

According to one embodiment of the invention, a bearing unit 122 for a wheel axle 114 of a vehicle is provided. The bearing unit 122 includes an inner race 116, an outer race 120, and a plurality of bearings 118 between the inner race 116 and the outer race 120. The bearing unit 122 is characterized in that an opening 110 is provided in any one of the inner race 116 and the outer race 120 for the cable bundle 112 to pass through. If inner ring 116 is fixed, opening 110 is disposed in inner ring 116. Similarly, if the outer ring 120 is fixed, the opening 110 is provided in the outer ring 120.

The opening 110 is a through hole. The opening 110 is at least one of inclined, parallel and curved with respect to a central rotational axis of the bearing unit 122. Furthermore, a bearing unit 122 is provided for the shaft 114 of the hub motor assembly 100.

According to one embodiment of the present invention, the hub motor assembly 100 allows for the use of a solid shaft without any holes or slots therein, thereby improving the strength and durability of the shaft 114. Manufacturing such a hub motor assembly 100 is easy and simple. The assembly and routing of the cable bundle 112 is easy. Since there are no sharp edges at the entrance and exit of the opening 110, the possibility of damaging the cable bundle 112 is negligible.

It should be understood that the above-explained embodiments in the present specification are only illustrative and do not limit the scope of the present invention. Many such embodiments, as well as other modifications and variations of the embodiments explained in this specification, are contemplated. The scope of the invention is limited only by the scope of the claims.