JP3235022U - In-wheel motor with built-in transmission for vehicles with auxiliary power - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an in-wheel motor with a built-in transmission for a vehicle having an auxiliary power, which can protect from intrusion of water and foreign substances and external collision, improve rust prevention, save the trouble of maintenance, and extend the service life. .. SOLUTION: This is an in-wheel motor with a built-in transmission for a vehicle having an auxiliary power, which includes a built-in speed change hub assembly 2 that rotates around a motor shaft 1 and an electric motor assembly 3. The built-in speed change hub assembly is a motor. It is a three-speed transmission mechanism including the motor shaft, the planetary gear set 4, the internal gear set 5, the ratchet set 6, the hub case 7, and the chain drive set 8, and the motor assembly is the stator 9. , A core 10, a copper coil 11, a permanent magnet 12, a rotor 13, and an electric motor including a housing 14. [Selection diagram] Fig. 1

Description

The present invention relates to a drive device for a vehicle with auxiliary power, and more particularly to an in-wheel motor with a built-in transmission for a vehicle with auxiliary power.

Most of the transmission mechanisms of conventional electrically power assisted bicycles and electric motorcycles adopt exposed transmission mechanisms such as cassette sprockets and freewheels, and such transmission mechanisms are rusted because they are exposed to the external environment. It is easy to collide with the bicycle, and dirt such as muddy water and dust easily infiltrate, so it was necessary to maintain it frequently.

As described above, how to improve the problem that the transmission mechanism of the above-mentioned conventional electrically power assisted bicycle or electric motorcycle is exposed to the outside has been an issue in the current industry.

The present invention has been made in view of the above-mentioned drawbacks of the prior art, and an object of the present invention is to provide an in-wheel motor with a built-in transmission in which a transmission mechanism of an electrically assisted bicycle or an electric motorcycle is installed inside a wheel.

In order to achieve the above object, the present invention is an auxiliary powered vehicle transmission built-in in-wheel motor including a built-in speed change hub assembly that rotates around a motor shaft and an electric motor assembly.
The built-in speed change hub assembly is a three-speed speed change mechanism including the motor shaft, a planetary gear set, an internal gear set, a ratchet set, a hub case, and a chain drive set.
The electric motor assembly is characterized by being an electric motor composed of a stator, a core, a copper coil, a permanent magnet, a rotor, and a housing.

The built-in transmission hub assembly is built in the in-wheel motor with a built-in transmission for a vehicle with auxiliary power, and includes three gear ratio ranges of high speed gear ratio, medium speed gear ratio, and low speed gear ratio. It is characterized by being a speed change mechanism.

The motor assembly is an outer rotor type motor in which the stator is arranged inside and the rotor is arranged outside, and the stator and the built-in transmission hub assembly have the motor shaft as a common axis. The rotor is pivotally supported by the housing and is characterized by driving wheels mounted on the housing integrally connected to the housing.

The hub case and the housing are integrally connected to each other.

The built-in transmission hub assembly and the motor assembly are characterized in that the motor shaft is pivotally supported by the motor shaft as a common shaft.

The built-in shifting hub assembly can be used alone or in combination with the motor assembly, and when the built-in shifting hub assembly is used alone, it is in a human-powered drive mode and the motor assembly is used. When used in combination with a three-dimensional vehicle, the mode is set to an electrically assisted drive mode, and the built-in transmission hub assembly converts the input human-powered driving force into a high-speed gear ratio, a medium-speed gear ratio, or a low-speed gear ratio via the hub case to convert the wheels. It is characterized by transmitting to.

As described above, the in-wheel motor with a built-in transmission for a vehicle with auxiliary power of the present invention has a human-powered drive mode including three gear ratio ranges of high-speed gear ratio, medium-speed gear ratio, and low-speed gear ratio, and an electric drive mode. And because it is equipped with an electric assist drive mode, it is possible to respond to different driving situations, especially for elderly people, women, children or people with disabilities, climbing slopes and headwinds. When riding in the state of the above or with luggage loaded, it is possible to ride comfortably while preserving physical strength by switching to an appropriate gear ratio or an electric drive mode or an electric assist drive mode. In addition, since the transmission mechanism is built inside the wheel, it can be protected from moisture, foreign matter, and external force, improving rust prevention, eliminating frequent maintenance, and extending the service life. There is also.

It is sectional drawing which shows the preferable embodiment of this invention. It is sectional drawing which shows the built-in speed change hub assembly in 1st Example of this invention. It is sectional drawing which shows the electric motor assembly in 1st Example of this invention. It is sectional drawing which shows the connection relationship between the hub case of a built-in speed change hub assembly, and the housing of a motor assembly in 1st Embodiment of this invention. It is sectional drawing which shows the common axis of the built-in transmission hub assembly and the electric motor assembly in 1st Embodiment of this invention.

The technical features and practical effects of the present invention will be described in detail below by preferred embodiments shown in the drawings so that they can be deeply understood and realized according to the contents of the invention.

As shown in FIG. 1, the in-wheel motor with a built-in transmission for a vehicle with assisted power according to the present invention includes a built-in gear shifting hub assembly 2 and an electric motor assembly 3 having a motor shaft 1 as a common axis. The built-in speed change hub assembly 2 is composed of six components including the motor shaft 1, a planetary gear set 4, an internal gear set 5, a ratchet set 6, a hub case 7, and a chain drive set 8. It is a speed change mechanism, and the electric motor assembly 3 is an electric motor including a stator 9, a core 10, a copper coil 11, a permanent magnet 12, a rotor 13, and a housing 14.

As shown in FIG. 2, the built-in transmission hub assembly 2 of the in-wheel motor with built-in transmission for a vehicle with auxiliary power according to the present invention is installed so as to be built in the central portion of the electric motor assembly 3. It is a 3-speed transmission mechanism having three gear ratio ranges of high-speed gear ratio, medium-speed gear ratio, and low-speed gear ratio.

As shown in FIG. 3, in the electric motor assembly 3 of the in-wheel motor with built-in transmission for a vehicle with assisted power according to the present invention, the stator 9 is arranged inside and the rotor 13 is arranged outside. It is a rotor type motor, and the stator 9 and the built-in speed change hub assembly 2 rotate with the motor shaft 1 as a common axis, and the rotor 13 is integrally connected to the housing 14 and is connected via the housing 14. It drives the wheels mounted on the housing 14.

As shown in FIG. 4, since the hub case 7 and the housing 14 are integrally connected, the driving force transmitted to the hub case 7 is a wheel mounted on the housing 14 via the housing 14. Can be driven.

As shown in FIG. 5, the built-in speed change hub assembly 2 and the motor assembly 3 of the in-wheel motor with built-in power transmission for a vehicle according to the present invention have the motor shaft 1 as a common shaft on the motor shaft 1. Since the shafts are supported, the built-in speed change hub assembly 2 and the motor assembly 3 can rotate at the same axis.

The built-in speed change hub assembly 2 may be used alone or in combination with the motor assembly 3. Specifically, when the built-in speed change hub assembly 2 is used alone, the human-powered drive mode is set in which the human-powered drive force from the chain drive set 8 is used as the drive source, and the generated human-powered drive force is used as the hub case 7. It is converted into a high-speed gear ratio, a medium-speed gear ratio, or a low-speed gear ratio and transmitted to the rear wheels.

That is, in the case of low-speed running, the shift sleeve 15 is controlled by the operation of the shift spindle 16 from the rider, and the ratchet claw and the ratchet gear in the ratchet set 6 are shifted to the low speed stage of the internal gear set 5. Achieves riding in human-powered mode at low gear ratios.

Further, in the case of medium speed traveling, the shift sleeve 15 is controlled by the operation of the shift spindle 16 from the rider, and the ratchet claw and the ratchet gear in the ratchet set 6 are shifted to the medium speed stage of the internal gear set 5. By doing so, the riding of the human-powered drive mode at the medium speed gear ratio is achieved.

Further, in the case of high-speed traveling, the shift sleeve 15 is controlled by the operation of the shift spindle 16 from the rider, and the ratchet claw and the ratchet gear in the ratchet set 6 are shifted to the high-speed stage of the internal gear set 5. Achieves ratcheting in human-powered mode at high gear ratios.

The in-wheel motor with a built-in transmission for a vehicle with auxiliary power according to the present invention also has an electric drive mode, and when the motor is switched to the electric drive mode, the wheels are directly driven by the electric motor assembly 3 as a drive source.

When the built-in transmission hub assembly 2 and the electric motor assembly 3 are used in combination, the in-wheel motor with a built-in transmission for a vehicle with auxiliary power according to the present invention assists the operator in riding the electric motor assembly 3. As an assist drive source, the electric assist drive mode is set.

The above description is merely a preferred embodiment of the present invention, and does not limit the present invention in any way. The present invention has been disclosed as described above with relatively suitable embodiments, but this is not a limitation of the present invention, and the art of the present invention is to the extent that all those skilled in the art do not deviate from the technical concept of the present invention. Any simple modifications, modifications and modifications made to the above embodiments based on the essence of the present invention are still within the scope of the present invention.

1 Motor shaft 2 Built-in shifting hub assembly 3 Electric machine assembly 4 Planetary gear set 5 Internal gear set 6 Ratchet set 7 Hub case 8 Chain drive set 9 Stator 10 Core 11 Copper coil 12 Permanent magnet 13 Rotor 14 Housing 15 Shift sleeve 16 Shift spindle

Claims (6)

An in-wheel motor with a built-in speed change hub that rotates around a motor shaft, and a built-in speed change device for vehicles with auxiliary power that includes an electric motor assembly.
The built-in speed change hub assembly is a three-speed speed change mechanism including the motor shaft, a planetary gear set, an internal gear set, a ratchet set, a hub case, and a chain drive set.
The motor assembly is an in-wheel motor with a built-in transmission for a vehicle with auxiliary power, which is an electric motor composed of a stator, a core, a copper coil, a permanent magnet, a rotor, and a housing. .. The built-in transmission hub assembly is built in the in-wheel motor with a built-in transmission for a vehicle with auxiliary power, and includes three gear ratio ranges of high speed gear ratio, medium speed gear ratio, and low speed gear ratio. The in-wheel motor with a built-in transmission for a vehicle with auxiliary power according to claim 1, wherein the transmission mechanism is used. The motor assembly is an outer rotor type motor in which the stator is arranged inside and the rotor is arranged outside.
The stator and the built-in transmission hub assembly are pivotally supported by the motor shaft with the motor shaft as a common shaft.
The in-wheel motor with a built-in transmission for a vehicle with auxiliary power according to claim 1, wherein the rotor is integrally connected to the housing and drives a wheel mounted on the housing. The in-wheel motor with a built-in transmission for a vehicle with auxiliary power according to claim 1, wherein the hub case and the housing are integrally connected. The in-wheel motor with a built-in transmission for a vehicle with auxiliary power according to claim 1, wherein the built-in speed change hub assembly and the motor assembly are pivotally supported by the motor shaft with the motor shaft as a common shaft. .. The built-in shifting hub assembly can be used alone or in combination with the motor assembly.
When the built-in transmission hub assembly is used alone, it is in the human-powered drive mode, and when it is used in combination with the motor assembly, it is in the electric assist drive mode.
The built-in speed change hub assembly is characterized in that the input human power driving force is converted into a high speed speed change ratio, a medium speed speed change ratio or a low speed speed change ratio and transmitted to the wheels via the hub case. The described in-wheel motor with built-in transmission for vehicles with auxiliary power.

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