Self-balancing double-wheeled electrical scooter

• US 10,286,971 B2
• Filed: 09/15/2015
• Issued: 05/14/2019
• Est. Priority Date: 09/15/2014
• Status: Active Grant

• Current Assignee: Changzhou Airwheel Technology Co., Ltd.
• Original Assignee: Changzhou Airwheel Technology Co., Ltd.
• Inventors: Zuo, Guogang
• Primary Examiner(s): Dickson, Paul N
• Assistant Examiner(s): Johns, Hilary L
• Application Number:
  US15/511,377
• Publication Number:
  US 20170253287A1
• Time in Patent Office: 1,337 Days
• Field of Search: None
• CPC Class Codes: B62K 11/007 Automatic balancing machines with single main ground engaging wheel or coaxial wheels supporting a rider
• CPC Class Codes: B62K 21/00 Steering devices steering devices specially adapted for one particular kind of cycle specified in groups B62K1/00 - B62K17/00, see the relevant group
• CPC Class Codes: H02K 11/215 Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
• CPC Class Codes: H02K 33/00 Motors with reciprocating, oscillating or vibrating magnet, armature or coil system arrangements for handling mechanical energy structurally associated with motors H02K7/00, e.g. H02K7/06
• CPC Class Codes: H02K 7/14 Structural association with mechanical loads, e.g. with hand-held machine tools or fans with fan or impeller for cooling the machine H02K9/06
• CPC Class Codes: H02P 6/04 Arrangements for controlling or regulating the speed or torque of more than one motor H02P6/10 takes precedence

Abstract

A self-balancing double-wheeled electrical scooter is provided with an assembly for controlling a travel direction of the self-balancing double-wheeled electrical scooter, wherein, the travel direction of the self-balancing double-wheeled electrical scooter is controlled via a handle, a resilient recoverable component is provided between a scooter body and the handle, the handle is adapted for driving the resilient recoverable component to control the travel direction of the scooter, the resilient recoverable component comprises a stator (101), a rotor (112) and a resilient recoverable unit (111), the rotor (112) is mechanically connected to the handle in a fixed manner directly or indirectly, the stator (101) is mechanically connected to the scooter body (107) in a fixed manner directly or indirectly, the stator (101) and the rotor (112) are connected in a resilient manner via the resilient recoverable unit, the resilient recoverable component further comprises an angle limiting device, the angle limiting device comprises a limiting cover (103) and a limiting pin (105), the limiting cover (103) is mechanically connected to the stator (101) in a fixed manner directly or indirectly, a limiting hole is provided on the limiting cover (103), the limiting pin (105) is mechanically connected to the rotor (112) in a fixed manner directly or indirectly, and the rotation of the rotor (112) causes the limiting pin (105) to rotate within a certain angle range inside the limiting hole on the limiting cover (103).

Claims

1. An assembly for controlling a travel direction of a self-balancing double-wheeled electrical scooter, characterized in that, the travel direction of the self-balancing double-wheeled electrical scooter is controlled via a handle on a scooter body, a resilient recoverable component is provided between the scooter body and the handle, the handle is adapted for driving the resilient recoverable component to control the travel direction of the scooter, the resilient recoverable component comprises a stator, a rotor and a resilient recoverable unit, the rotor is mechanically connected to the handle in a fixed manner directly or indirectly, the stator is mechanically connected to the scooter body in a fixed manner directly or indirectly, the stator and the rotor are connected by the resilient recoverable unit in a resilient manner, the resilient recoverable component between the scooter body and the handle further comprises an angle limiting device which limits rotation of the rotor to a certain angle range, the angle limiting device comprises a limiting cover and a limiting pin, the limiting cover is mechanically connected to the stator in a fixed manner directly or indirectly, a limiting hole is provided on the limiting cover, the limiting pin is mechanically connected to the rotor in a fixed manner directly or indirectly, and the rotation of the rotor causes the limiting pin to rotate within a certain angle range inside the limiting hole on the limiting cover.

2. The assembly for controlling a travel direction of the self-balancing double-wheeled electrical scooter according to claim 1, characterized in that, the stator is disposed inside the rotor.

3. The assembly for controlling a travel direction of the self-balancing double-wheeled electrical scooter according to claim 1, characterized in that, the rotor is disposed inside the stator.

4. The assembly for controlling a travel direction of the self-balancing double-wheeled electrical scooter according to claim 1, characterized in that, the resilient recoverable unit is filled in the gap between the stator and the rotor so that the stator and the rotor are connected integrally via the resilient recoverable unit, the rotor driven by an external force rotates relative to its initial position, causing the resilient recoverable unit to deform, and when the external driving force exerted on the rotor weakens or disappears, the elastic recovery force of the resilient recoverable unit causes the rotor to move towards its initial position or return to its initial position.

5. The assembly for controlling a travel direction of the self-balancing double-wheeled electrical scooter according to claim 1, characterized in that, a position limiting component is provided between the stator and the rotor, for preventing all movements of the rotor relative to the stator other than rotation.

6. The assembly for controlling a travel direction of the self-balancing double-wheeled electrical scooter according to claim 1, characterized in that, the stator and the rotor are connected in a resilient manner via the resilient recoverable unit, and the resilient recoverable unit is a rubber unit or a silicone unit that is injection molded between the stator and the rotor.

7. The assembly for controlling a travel direction of the self-balancing double-wheeled electrical scooter according to claim 6, characterized in that, the contact surface between the stator and the resilient recoverable unit or between the rotor and the resilient recoverable unit is a rough surface or a dented patterned surface.

8. The assembly for controlling a travel direction of the self-balancing double-wheeled electrical scooter according to claim 1, characterized in that, the handle and the rotor are mechanically connected in a fixed manner via a handle base, the limiting pin is fixed on the handle base, and the handle, when driven by an external force, is adapted for driving the handle base and the limiting pin on the handle base to rotate within a certain angle range limited by the limiting hole on the limiting cover.

9. The assembly for controlling a travel direction of the self-balancing double-wheeled electrical scooter according to claim 1, characterized in that, said angle range is from −

30°

to 30°

.

10. The assembly for controlling a travel direction of the self-balancing double-wheeled electrical scooter according to claim 1, wherein, the assembly is provided with an information-collecting device for collecting information of change of handle position.

11. The assembly for controlling a travel direction of the self-balancing double-wheeled electrical scooter according to claim 10, wherein, the information-collecting device comprises a signal capturing and processing unit and a signal emitting unit.

12. The assembly for controlling a travel direction of the self-balancing double-wheeled electrical scooter according to claim 11, characterized in that, the signal emitting unit is directly or indirectly fixed to the rotor which is mechanically connected to the handle in a fixed manner directly or indirectly, the signal capturing and processing unit is directly or indirectly fixed to the stator which is mechanically connected to the scooter body in a fixed manner directly or indirectly, the rotation of the rotor relative to the stator drives the signal emitting unit to rotate relative to the signal capturing and processing unit.

13. The assembly for controlling a travel direction of the self-balancing double-wheeled electrical scooter according to claim 11, characterized in that, the signal emitting unit is directly or indirectly fixed to the stator which is mechanically connected to the scooter body in a fixed manner directly or indirectly, the signal capturing and processing unit is directly or indirectly fixed to the rotor which is mechanically connected to the handle in a fixed manner directly or indirectly, the rotation of the rotor relative to the stator drives the signal capturing and processing unit to rotate relative to the signal emitting unit.

14. The assembly for controlling a travel direction of the self-balancing double-wheeled electrical scooter according to claim 11, characterized in that, the signal emitting unit is a magnet, and the signal capturing and processing unit is a linear Hall sensor.

15. The assembly for controlling a travel direction of the self-balancing double-wheeled electrical scooter according to claim 14, characterized in that, the magnet comprises a pair of magnets which are arranged in a central symmetric manner and are directly or indirectly fixed to the stator or the rotor, with a center thereof being a rotation center, and the linear Hall sensor is fixed at a location corresponding to the center of the magnets.