Two-axis gimbal and three-axis gimbal

• US 20180003340A1
• Filed: 09/18/2017
• Published: 01/04/2018
• Est. Priority Date: 01/23/2017
• Status: Abandoned Application

• Current Assignee: Haoxiang Electric Energy (Kunshan) Co., Ltd.
• Original Assignee: Haoxiang Electric Energy (Kunshan) Co., Ltd.
• Inventors: Tian, Yu, Jiang, Wenyan
• Application Number:
  US15/708,103
• Publication Number:
  US 20180003340A1
• Time in Patent Office: Days
• CPC Class Codes: F16M 11/08 around a vertical axis , e.g. panoramic heads F16M11/12 takes precedence
• CPC Class Codes: F16M 11/10 around a horizontal axis F16M11/12 takes precedence
• CPC Class Codes: F16M 11/105 the horizontal axis being the roll axis, e.g. for creating a landscape-portrait rotation
• CPC Class Codes: F16M 11/18 with mechanism for moving the apparatus relatively to the stand
• CPC Class Codes: F16M 11/2021 around a horizontal axis F16M11/2035 takes precedence
• CPC Class Codes: F16M 11/2057 for tilting and rolling F16M11/2078 takes precedence
• CPC Class Codes: F16M 11/2071 for panning and rolling F16M11/2078 takes precedence
• CPC Class Codes: F16M 13/022 repositionable
• CPC Class Codes: G03B 17/561 Support related camera accessories
• CPC Class Codes: H02K 11/33 Drive circuits, e.g. power electronics H02K11/38 takes precedence
• CPC Class Codes: H02K 16/00 Machines with more than one rotor or stator machines for transmitting mechanical power from a driving shaft to a driven shaft and comprising structurally interrelated motor and generator parts H02K51/00; permanent magnet machines with multiple rotors or stators relatively rotated for vectorially combining the excitation fields or the armature voltages H02K21/029
• 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

Abstract

A three-axis gimbal includes a carrier, a first fixing frame, a second fixing frame, a third fixing frame, a first motor, a second motor and a third motor. The first motor is connected respectively with the first fixing frame and the second fixing frame, so that the second fixing frame rotates relative to the first fixing frame. The second motor is connected respectively with the second fixing frame and the third fixing frame, so that the third fixing frame rotates relative to the second fixing frame. The third motor is connected respectively with the third fixing frame and the carrier, so that the carrier rotates relative to the third fixing frame. An axis of the second motor is parallel to an axis of the carrier; an axis of the third motor is perpendicular to the first fixing frame; axes of the three motors are perpendicular to each other.

Claims

1. A three-axis gimbal, comprising a carrier, a first fixing frame, a second fixing frame, a third fixing frame, a first motor, a second motor and a third motor, wherein:

the first motor is connected respectively with the first fixing frame and the second fixing frame, and is configured to drive the second fixing frame to rotate relative to the first fixing frame;

the second motor is connected respectively with the second fixing frame and the third fixing frame, and is configured to drive the third fixing frame to rotate relative to the second fixing frame;

the third motor is connected respectively with the third fixing frame and the carrier, and is configured to drive the carrier to rotate relative to the third fixing frame; and

an axis of the second motor is parallel to an axis of the carrier, and an axis of the third motor is perpendicular to the first fixing frame;

an axis of the first motor, the axis of the second motor and the axis of the third motor are perpendicular to each other.

2. The three-axis gimbal, as recited in claim 1, wherein:

the first fixing frame comprises a base and an extension arm perpendicular to the base; and

the first motor is connected with the extension arm.

3. The three-axis gimbal, as recited in claim 2, wherein the axis of the third motor is perpendicular to the base.

4. The three-axis gimbal, as recited in claim 1, wherein the carrier is a camera unit.

5. The three-axis gimbal, as recited in claim 1, wherein the axis of the second motor and the axis of the carrier are coaxial.

6. The three-axis gimbal, as recited in claim 1, wherein the axis of the first motor is located in a horizontal plane.

7. The three-axis gimbal, as recited in claim 1, wherein the axis of the first motor is perpendicular to a horizontal plane.

8. The three-axis gimbal, as recited in claim 1, wherein:

a stator of the first motor is connected with the first fixing frame and a rotor of the first motor is connected with the second fixing frame;

a stator of the second motor is connected with the second fixing frame and a rotor of the second motor is connected with the third fixing frame; and

a stator of the third motor is connected with the third fixing frame and a rotor of the third motor is connected with the carrier.

9. The three-axis gimbal, as recited in claim 1, wherein a protective casing covers outer sides of the carrier and the third motor.

10. The three-axis gimbal, as recited in claim 1, wherein:

the three-axis gimbal further comprises a first magnetic-control board, a second magnetic-control board and a third magnetic-control board;

the first motor and the first magnetic-control board are fixed at two sides of the first fixing frame;

the second motor and the second magnetic-control board are fixed at two sides of the second fixing frame; and

the third motor and the third magnetic-control board are fixed at two sides of the third fixing frame.

11. The three-axis gimbal, as recited in claim 2, wherein:

the three-axis gimbal further comprises a first magnetic-control board, a second magnetic-control board and a third magnetic-control board;

the first motor and the first magnetic-control board are fixed at two sides of the first fixing frame;

the second motor and the second magnetic-control board are fixed at two sides of the second fixing frame; and

the third motor and the third magnetic-control board are fixed at two sides of the third fixing frame.

12. The three-axis gimbal, as recited in claim 10, wherein:

a control board is arranged on the first fixing board;

the carrier, the control board, the first magnetic-control board, the second magnetic-control board and the third magnetic-control board are electrically connected through a flexible printed circuit board.

13. A two-axis gimbal, comprising a carrier, a first fixing frame, a second fixing frame, a first motor and a second motor, wherein:

the first motor is connected respectively with the first fixing frame and the second fixing frame, and is configured to drive the second fixing frame to rotate relative to the first fixing frame;

the second motor is connected respectively with the second fixing frame and the carrier, and is configured to drive the carrier to rotate relative to the second fixing frame; and

an axis of the second motor is parallel to an axis of the carrier; and

an axis of the first motor is perpendicular to the axis of the second motor.

14. The two-axis gimbal, as recited in claim 13, wherein:

the first fixing frame comprises a base and an extension arm perpendicular to the base;

the first motor is connected with the extension arm;

the carrier and the second motor are located below the base;

the axis of the first motor is parallel to the base.

15. The two-axis gimbal, as recited in claim 13, wherein the axis of the second motor and the axis of the carrier are coaxial.

16. The two-axis gimbal, as recited in claim 13, wherein the carrier is a camera unit.

17. The two-axis gimbal, as recited in claim 13, wherein the axis of the first motor is located in a horizontal plane.

18. The two-axis gimbal, as recited in claim 13, wherein:

a stator of the first motor is connected with the first fixing frame, and a rotor of the first motor is connected with the second fixing frame; and

a stator of the second motor is connected with the second fixing frame, and a rotor of the second motor is connected with the carrier.

19. The two-axis gimbal, as recited in claim 13, wherein:

the two-axis gimbal further comprises a first magnetic-control board and a second magnetic-control board;

the first motor and the first magnetic-control board are fixed at two sides of the first fixing frame; and

the second motor and the second magnetic-control board are fixed at two sides of the second fixing frame.

20. The two-axis gimbal, as recited in claim 19, wherein:

a control board is arranged on the first fixing frame;

the carrier, the control board, the first magnetic-control board and the second magnetic-control board are electrically connected through a flexible printed circuit board.