KR20110026898A

KR20110026898A - Cvt electric unicycle

Info

Publication number: KR20110026898A
Application number: KR1020090084744A
Authority: KR
Inventors: 이선모
Original assignee: 이선모
Priority date: 2009-09-09
Filing date: 2009-09-09
Publication date: 2011-03-16

Abstract

PURPOSE: An electric unicycle using a conical outer brushless motor as a CVT and rotation power is provided to be moved without labor force by using a motor. CONSTITUTION: An electric unicycle using a conical outer brushless motor as a CVT and rotation power is composed as follows. An electric motor is rotated by using the power of a battery. A rotary roller(11) is coupled between the motor and a wheel(9) without a chain or a saw-toothed gear by rotating the motor. When the rotary roller is rotated, the inner surface of the wheel is rotated. The outer shape of a brushless motor(10) is formed in a conical shape. The brushless motor is used as a CVT by rotating the conical part of the brushless motor outward.

Description

Electric unicycle using a cone-shaped brushless motor as a transmission and rotational power {CVT ELECTRIC UNICYCLE}

The present invention relates to a one-wheeled unicycle with an electric motor applied to a unicycle. The central axis of the wheel has a conical brushless motor (Brushless DC Motor) manufactured with a conical structure (Fig. 5 to 10) from the inner surface of the wheel. Rotating rollers that combine to form a horizontal angle and transfer rotational energy between the outer surface of the {brushless DC motor} of the conical brushless motor and the inner surface of the hub bearing (Fig. 4 to 15) of the bicycle wheel (Fig. 5 to 11). ), When the brushless motor is rotated by the motor rotation control device (electronic transmission), the rotating roller (No. 11 in Fig.-5) in close contact with the outer surface of the conical brushless motor rotates. The hub bearing (No. 15 in Fig. 4) is rotated by the one-wheel type electric unicycle of the type that the wheel is coupled to the tire rotates.

Apply wheels equipped with electric brushless motors used for two-wheeled electric bicycles for unicycles, but make the cone-shaped brushless motors into cones to make the conical brushless motors different from the central axis of the wheels. Maintain the angle of view, and combine to form a plane parallel to the inner surface of the hub bearing wheels.

Between the outer surface of the conical brushless motor fixed to be parallel to the inner surface of the wheel and the inner surface of the wheel, there is a disk-shaped rotating roller that transmits the rotational force of the motor to the inner surface of the wheel, and the rotating roller is in close contact with the rotation of the motor. Is rotated and the rotation of the roller is in contact with the inner surface of the hub bearing, resulting in the principle that the wheel is rotated.

Conical brushless motors have a wider diameter in the stepped gears, which correspond to higher gear-high speed-low energy, and located closer to the top of the cone, the smaller the diameters. Differences in the rotational force of the hub bearings in close contact with the rollers occur. When the rotary rollers are located at the vertices of the cone, the low gear-low speed-high energy does not overload the brushless motors when driving on hills.

When the position of the rotary roller is in contact with the wide base of the cone brushless motor, it acts as a high gear-high speed to produce a low-power high-speed rotation.

The principle of such a gear is the same as that of an automobile transmission, which is converted to a low gear when driving on a hill or starting, and a high gear when driving on a flat surface or driving at high speeds.

The power source that rotates the brushless motor has a rechargeable rechargeable battery inside the wheel, which can be recharged by an external charger, and has an electronic transmission for controlling the speed of the brushless motor. The control for speed control of the transmission is coupled to the saddle in the form of a handle.

The brakes are optional in the form of compression brakes and disc brakes for two-wheeled bicycles, and the brake controls are also attached to the handle attached to the saddle.

In general, a unicycle can't have a stepped gear like a two-wheeled bicycle, and because a person's movement requires a pedal to turn, a lot of power is consumed and the height of the saddle is high. It's a difficult bike and is only used by stunts, circus fans, or by specific unicycle lovers.

Brushless motor: Brushless motor is a motor without commutator-contact point that supplies electricity to the coil to generate magnetic force in the motor. Since there is no brush, the brushless motor can be used for a long time without the wear of the brush. to be.

Recently, brushless motors are used as rotating motors for electric scooters and electric bicycles. They have a long service life and a large energy at the same power, compared to general DC motors.

The unicycle according to the present invention adopts an electronic transmission for a brushless motor to produce a variable speed, and the exterior of the brushless motor is made into a cone due to a spatial and structural reason that a mechanical gear device composed of a chain and a gear cannot be combined. It was.

Since the cone has different lengths of the circumference of the base and the vertex, the cone-like shape is used to implement the principle of low-speed-high-power, high-speed-low-power according to the gear ratio at the same rotational speed as the manual or automatic transmission of the car. Conical brushless motor with external shape was applied.

Mechanically, the principle of stepless speed change can be done by pushing or pulling the disk rotation roller contacted with the conical brushless motor from side to side and freely reciprocating from the bottom of the cone to the vertex. At the vertices of the cone, it is easy to climb sloped hills with the same energy at low and high power.

The electronic transmission that drives the brushless motor rotates the motor by supplying three-phase alternating current to the coil of the brushless motor, and as the frequency of the electronic transmission increases, the rotation speed of the motor increases, thereby controlling the speed at the fixed position of the continuously variable transmission. Valid.

The use of electronic transmission is mainly used in electric airplanes and electric vehicles. In the case of general brush-type DC motors, speed increases and decreases due to the voltage drop. However, the speed of the motor changes according to the frequency change of the three-phase electric voltage. do.

The power source of the continuously variable electric unicycle is a rechargeable lithium battery battery, which is mainly used as a power source of an electric vehicle, as a power source to reduce the weight of the entire product and to charge the battery fast.

The main parts of the continuously variable electric unicycle, the motor, the transmission, and the battery, are all attached to the inside of the wheels, ensuring safety from external shocks.

The method of stopping the rotating wheel is optional, such as the compression pad type or the disc brake type shown in the two-wheeled bicycle, and is the same as the brake control device of the two-wheeled bicycle.

Externally, the protective cover is attached to the left and right side of the wheel to protect the hub bearing and the motor, transmission, and battery that are combined inside the hub bearing.

The main contents of the present invention is to rotate the unicycle by the electric motor and to use the brushless motor of the rotating motor and the outer shape of the brushless motor is a stepless multi-stage gear that is mechanically shifted, not a stepless variable continuously variable transmission. It is intended to be used as a convenient means of transportation by playing a role.

The size of the continuously variable electric unicycle thus manufactured consists of a wheel, a saddle and a handle connected to the saddle.

The handle combined with the saddle consists of an electronic speed control, a brake and a variable gear transmission.

It is necessary to reduce the weight for easy portability.

It protects the motor, gearbox, and battery that are coupled to the inside of the wheels. The cover that combines the bicycle wheels is made of reinforced plastic material with low strength and weight.

To reduce the weight of the battery, the lithium polymer battery currently used in electric vehicles, etc. is adopted.

In the continuously variable electric unicycle, the wheel is rotated by the electric force, so that no human force enters, and because the wheel rotates immediately, the current unicycle of the pedal rotation type that can be centered only when the pedal is rotated immediately. Not much skill is required.

As an eco-friendly means of transportation, it is easy to carry and easy to store due to the unicycle.

It uses electric motor using battery and variable continuously variable transmission, so it is a convenient means of movement that can be moved without sitting effortlessly.

It can also be used as a ride for adults as well as children.

The outer case of the brushless motor rotating by the electronic transmission is made into a conical case.

The combination of the conical brushless motor and the wheel center shaft is assembled at the same angle as the inner angle of the cone so that the inclined surface of the cone is parallel to the inner surface of the hub bearing.

The rotating roller coupled to the conical brushless motor and the inner side of the hub bearing is combined with a steel wire that can be pulled and pushed from the outside so that it can move from side to side on the central axis, and the spring does not rotate and returns to the vertex of the cone when the motor stops. Insert to combine

.

Claims

A unicycle or unicycle that does not have a rotary pedal and moves by rotating the electric motor with the power of the battery.

The unicycle or unicycle of claim 1, wherein a rotation roller is coupled between the motor and the wheel by rotation of the motor without a chain or toothed gear to rotate the inner surface of the wheel.

The unicycle or unicycle according to claim 1, wherein the outer shape of the brushless motor without a brush is used as a continuously variable gearbox by rotating the outer side of the conical brushless motor.

The unicycle or unicycle according to claim 1, wherein the rake or disc disk has brakes on the inside and the outside for stopping the electric wheel that rotates electrically.

The unicycle or unicycle of claim 1 having a two-handle handle incorporating a speed regulating knob, a brake knob and a gear transmission.

The integrated unicycle or unicycle according to claim 1, wherein the motor, battery, transmission, and variable gear are coupled to the inside of the wheel.

A unicycle or unicycle equipped with a continuously variable gearless brushless motor that makes the appearance of a brushless motor conical to act as a gear shift.