Driving motor driving structure of electric mobility device

Abstract

The present invention relates to a driving motor driving structure of an electric mobility device, which is invented to improve driving efficiency of a driving motor for driving a driving wheel of an electric mobility device, suitable for various electric mobility devices such as an electric kickboard or an electric scooter, particularly a small personal mobility device. The present invention includes: a main driving motor (20) installed inside a driving wheel (23) and having first and second supporting shafts (21, 22) respectively protruding to opposite sides; an auxiliary driving motor (30) combined with the main driving motor (20), wherein the main driving motor (20) and the auxiliary driving motor (30) are configured to be electrically and individually driven by a separate operation system and rotate and drive the driving wheel (23). The present invention relates to a driving motor driving structure of an electric mobility device, which is invented to improve driving efficiency of a driving motor for driving a driving wheel of various electric mobility devices such as an electric kickboard or an electric scooter.

Description

Drive structure of electric vehicle's drive motor

[0001] The present invention relates to a driving structure of a driving motor of an electric vehicle, and more specifically, to a driving structure of a driving motor of an electric vehicle that is capable of improving the driving efficiency of a driving motor that drives a driving wheel of an electric vehicle suitable for various electric vehicles such as electric kickboards or electric scooters, and particularly small personal vehicles.

[0002]

[0003] Recently, policy initiatives to reduce the use of fossil fuels have been implemented worldwide, and as a means of reducing fossil fuel use, electrically powered vehicles and various types of electric vehicles have been proposed and are being widely used at an explosive rate.

[0004] Various electric vehicles, such as vehicles, electric kickboards, and electric scooters, have rechargeable batteries that use electric energy supplied from the batteries to drive a drive motor, which rotates the drive wheel. Most electric vehicles use a drive motor (hub motor) installed inside the drive wheel, thereby simplifying and miniaturizing the vehicle and improving energy efficiency.

[0005] The present invention relates to a driving motor driving structure capable of improving the driving efficiency of a driving motor (hub motor) of an electric vehicle.

[0006]

[0007] Conventional electric vehicles use a driving motor installed inside the driving wheel to rotate the driving wheel. The conventional electric vehicles are operated by increasing the rotational speed and torque of the driving wheel by controlling the intensity of the voltage (V) applied to the driving motor. However, the operation method of the above-mentioned electric vehicles has been pointed out as having problems such as the high consumption of electric energy and the risk of explosion and fire accidents due to overvoltage.

[0008] The present invention was created to solve the problems in the operation of the drive motor of the conventional electric vehicle as described above, and by using an auxiliary drive motor combined with a main drive motor for driving the drive wheel, the driving force of the auxiliary drive motor can be added to the output of the main drive motor as needed, thereby increasing the rotational speed and torque of the drive wheel without significantly increasing the voltage (V), thereby minimizing the consumption of electric energy and improving the driving efficiency of the drive motor, thereby providing a drive structure of a completed electric vehicle with a technical task focused on.

[0009] Another technical problem to be solved in the present invention is to provide a driving structure of a driving motor of an electric vehicle that can improve energy efficiency by obtaining electric energy during the driving process of the vehicle.

[0010]

[0011] The present invention for solving the above-mentioned technical problem comprises a main driving motor installed on the inside of a driving wheel and having first and second support shafts protruding to both sides, and an auxiliary driving motor combined with the main driving motor, so that the main driving motor and the auxiliary driving motor are electrically driven individually by separate operating systems, and the hub of the driving wheel on which the main driving motor is installed or the driving shafts of the main driving motor and the auxiliary driving motor are connected by a driving transmission means.

[0012]

[0013] The driving structure of the driving motor of the electric vehicle proposed in the present invention uses an auxiliary driving motor combined with a main driving motor for rotating the driving wheel, so that the driving force of the auxiliary driving motor can be added to the driving wheel when certain conditions are met, thereby obtaining the effect of increasing the rotational speed and torque of the driving wheel without excessively increasing the voltage of the main driving motor, thereby improving the driving efficiency of the driving motor and saving electric energy.

[0014] In addition, according to the present invention, when the auxiliary drive motor is not driven, the auxiliary drive motor connected to the main drive motor by the drive transmission means performs a power generation operation so that the generated electric energy can be stored and utilized in a rechargeable battery, thereby improving energy efficiency, and thus the present invention can be said to be a truly beneficial invention in terms of its expected effects.

[0015]

[0016] Figure 1 is a perspective view for explaining the configuration of the drive motor drive structure of the electric mobility means proposed in the present invention.

[0017] Figure 2 is a perspective view of an excerpt of a main part of the present invention.

[0018] Figure 3 is a perspective view showing one embodiment of a means of transportation to which the present invention is applied.

[0019]

[0020] The present invention will now be described in detail with reference to the attached drawings. First, it should be noted that, where possible, identical components or parts are designated by identical reference numerals throughout the drawings. Furthermore, in describing the present invention, specific descriptions of related, publicly known functions or configurations have been omitted to avoid obscuring the gist of the technical concepts sought to be embraced by the present invention.

[0021]

[0022] FIG. 1 is a perspective view illustrating the configuration of a driving motor drive structure (10) of an electric vehicle (1) proposed in the present invention. Through the drawing, it can be confirmed that the present invention is configured with a main driving motor (20) installed on the inside of a driving wheel (23) and having first and second support shafts (21, 22) protruding to both sides, and an auxiliary driving motor (30) combined with the main driving motor (20).

[0023] The above main driving motor (20) and auxiliary driving motor (30) are electrically driven individually by a separate operating system, and the hub of the driving wheel (23) on which the main driving motor (20) is installed or the driving shaft (31) of the main driving motor (20) and auxiliary driving motor (30) are connected by a driving transmission means (40).

[0024] At this time, a brake disc (24) for braking the driving wheel (23) can be installed on one hub of the driving wheel (23) so that it can be used for braking the driving wheel in combination with a brake pad.

[0025] The above main driving motor (20) is configured to be driven in response to the operation of the throttle operating means installed in the electric vehicle (1), and the above auxiliary driving motor (30) is configured to be driven when the voltage applied to the main driving motor (20) exceeds a predetermined standard.

[0026] The above drive transmission means (40) is composed of a driven member (41) installed on the hub of the drive wheel (23) or the main drive motor (20) and driven together with the drive wheel (23), a drive member (42) installed on the drive shaft (31) of the auxiliary drive motor (30), and a power transmission member (43) for connecting the driven member (41) and the drive member (42). The drive member (41), the driven member (42), and the power transmission member (43) constituting the drive transmission means (40) can be implemented as a belt pulley and a belt, a chain sprocket and a chain, or a bevel gear shaft.

[0027] According to the present invention, a rechargeable battery (B) connected to an auxiliary drive motor (30) can be added to store electric energy generated when the drive shaft (31) of the auxiliary drive motor (30) is idling.

[0028]

[0029] The present invention uses a method in which the first and second support shafts (21, 22) of a main driving motor (20) or one of the first and second support shafts (21, 22) is fixed to a fixture (5) installed on a frame (2) of a means of transportation (1), and an auxiliary driving motor (30) is installed on a foot plate (3) provided on the frame (2). When electricity is applied to drive the main driving motor (20), the main driving motor (20) rotates around the first and second support shafts (21, 22), and a driving wheel (23) installed on the outer surface of the main driving motor (20) rotates together with the main driving motor (20), thereby driving the electric means of transportation (1).

[0030] In the present invention, when a throttle operating means installed in an electric moving means (1) is operated, electricity is applied to drive the main driving motor (20) and the driving wheel (23) is rotated. The main driving motor (20) is driven in immediate response to the operation of the throttle operating means.

[0031] That is, when the main drive motor (20) is driven, the first and second support shafts (21, 22) of the main drive motor (20) or one of the first and second support shafts (21, 22) is fixed to the fixture (5) of the frame (2), so the main drive motor (20) rotates, thereby causing the rotation of the drive wheel (23) installed on the main drive motor (20).

[0032] In a situation where an increase in speed is required during the driving of an electric vehicle (1) or when driving on an upward slope, the throttle operating means is operated to increase the intensity of the voltage applied to the main driving means (20). In this process, when the voltage applied to the main driving motor (20) exceeds a predetermined standard, the auxiliary driving motor (30) is driven, and the driving force of the auxiliary driving motor (30) is transmitted to the driven member (41) by the driving transmission means (40), so that the output of the auxiliary driving motor (30) is added to the output of the main driving motor (20), thereby increasing the rotational speed and torque of the driving wheel (23) without significantly increasing the voltage of the main driving motor (20).

[0033] According to the present invention, even when the auxiliary drive motor (30) is not driven, the drive shaft (31) of the auxiliary drive motor (30) connected to the hub of the drive wheel (23) or the main drive motor (20) and the drive transmission means (40) rotates idly, and at this time, a coil (not shown) installed on one side of the drive shaft (31) functions as a generator while being rotated by the drive shaft (31), thereby generating electricity, and the generated electric energy can be stored in a rechargeable battery (B) installed in the electric vehicle (1) and utilized.

[0034]

[0035] Meanwhile, in the embodiment of the present invention, a configuration is disclosed of a main drive motor (20) of a hub motor type installed inside a drive wheel (23) and an auxiliary drive motor (30) combined with the main drive motor (20) and a drive transmission means (40), but the drive structure according to the present invention can be implemented even without using a hub motor.

[0036] That is, a main drive motor (20) configured as a normal drive motor is installed on one side of a drive wheel (23), so as to drive the drive wheel (23) by the drive shaft of the main drive motor (20), and a driven member (41) installed on the drive shaft and a drive member (42) installed on the drive shaft (31) of an auxiliary drive motor (30) are connected by a drive transmission means (40), and a brake disc (24) is installed on the drive shaft of the main drive motor (20), so that the main drive motor (20) and the auxiliary drive motor (30) can be electrically driven individually by separate operating systems. Of course, the auxiliary drive motor (30) or the main drive motor (20) can also be selectively used for power generation.

[0037]

[0038] And, the present invention has described a form in which the auxiliary drive motor (30) intervenes when the output of the main drive motor (20) is insufficient or a lot of output is needed momentarily, but the present invention has already made the main drive motor (20) and the auxiliary drive motor (30) electrically driven individually by a separate operation (command) system, so that the output of the main drive motor (20) and the auxiliary drive motor (30) can be selectively utilized in various forms, such as giving an output signal to both the main drive motor (20) and the auxiliary drive motor (30) at the time of initial start-up so that the vehicle can start with a considerable output, or so that the vehicle can be driven by the auxiliary drive motor (30) when driving at a constant speed that does not require a lot of output.

[0039]

[0040] The driving structure of the driving motor of the electric vehicle proposed in the present invention is not limited to the above-described embodiments and the attached drawings, etc., and can be substituted, modified, and changed in various forms within a scope that does not depart from the scope of the technical idea intended to be enjoyed by the present invention, which will be obvious to a person having ordinary knowledge in the technical field to which the present invention pertains.

[0041]

[0042] The present invention uses an auxiliary drive motor combined with a main drive motor for rotating a drive wheel so that the driving force of the auxiliary drive motor can be added to the drive wheel when certain conditions are met, thereby obtaining the effect of increasing the rotational speed and torque of the drive wheel without excessively increasing the voltage of the main drive motor, thereby improving the driving efficiency of the drive motor and saving electric energy. According to the present invention, when the auxiliary drive motor is not driven, the auxiliary drive motor connected to the main drive motor by a drive transmission means performs a power generation operation so that the generated electric energy can be stored and utilized in a rechargeable battery, thereby improving energy efficiency.

Claims

1. It is composed of a main driving motor (20) installed on the inside of a driving wheel (23) and having first and second support shafts (21, 22) protruding to both sides, and an auxiliary driving motor (30) combined with the main driving motor (20), so that the main driving motor (20) and the auxiliary driving motor (30) are electrically driven separately by separate operating systems. A driving structure of a driving motor of an electric vehicle characterized in that the hub of the above driving wheel (23) or the main driving motor (20) and the driving shaft (31) of the auxiliary driving motor (30) are connected by a driving transmission means (40).

2. A driving structure of a driving motor of an electric vehicle characterized in that a main driving motor (20) is installed on one side of a driving wheel (23) to drive the driving wheel (23) by the driving shaft of the main driving motor (20), a driven member (41) installed on the driving shaft and a driving member (42) installed on the driving shaft (31) of an auxiliary driving motor (30) are connected by a driving transmission means (40), and a brake disc (24) is installed on the driving shaft of the main driving motor (20).

3. In paragraph 1 or 2; The above main drive motor (20) is configured to drive immediately in response to the operation of the throttle operating means installed in the electric vehicle (1), and the above auxiliary drive motor (30) is configured to drive when the voltage applied to the main drive motor (20) exceeds a preset standard. The driving structure of the electric vehicle is characterized by the above.

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