Gimbal driving device and gimbal assembly using the same

• US 9,749,544 B2
• Filed: 04/04/2014
• Issued: 08/29/2017
• Est. Priority Date: 04/04/2014
• Status: Active Grant

• Current Assignee: SZ DJI Technology Co., Ltd. (d/b/a DJI) (iFlight Technology Company Limited)
• Original Assignee: SZ DJI Technology Co., Ltd. (d/b/a DJI) (iFlight Technology Company Limited)
• Inventors: Wang, Yong
• Primary Examiner(s): OSINSKI, MICHAEL S
• Application Number:
  US15/126,493
• Publication Number:
  US 20170094185A1
• Time in Patent Office: 1,243 Days
• CPC Class Codes: F16M 11/10 around a horizontal axis F16M11/12 takes precedence
• CPC Class Codes: F16M 11/123 the axis of rotation intersecting in a single point, e.g. by using gimbals
• CPC Class Codes: F16M 11/18 with mechanism for moving the apparatus relatively to the stand
• CPC Class Codes: F16M 11/2028 for rolling, i.e. for creating a landscape-portrait rotation
• CPC Class Codes: F16M 13/02 for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
• CPC Class Codes: F16M 13/04 for supporting on, or holding steady relative to, a person, e.g. by chains , e.g. rifle butt or pistol grip supports, supports attached to the chest or head apparatus or arrangements for taking photographs or for projecting or viewing them G03B
• CPC Class Codes: F16M 2200/041 for balancing rotational movement of the head
• CPC Class Codes: F16M 2200/044 for balancing rotational movement of the undercarriage
• CPC Class Codes: F16M 2200/06 Arms
• CPC Class Codes: G03B 17/561 Support related camera accessories
• CPC Class Codes: G03B 2205/0023 by tilting or inclining one or more optical elements with respect to the optical axis
• CPC Class Codes: G03B 2205/0069 using electromagnetic actuators, e.g. voice coils
• CPC Class Codes: H04N 23/51 Housings
• CPC Class Codes: H04N 23/54 Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
• CPC Class Codes: H04N 23/55 Optical parts specially adapted for electronic image sensors; Mounting thereof
• CPC Class Codes: H04N 23/69 Control of means for changing angle of the field of view, e.g. optical zoom objectives or electronic zooming

Abstract

The present invention relates to a gimbal driving device comprising a holding arm, a first motor, a connecting frame for fixing an imaging device, a connector and a flexible wiring board. The first motor may comprise a shaft, a rotor holder connected with the shaft, and a shaft cover fixed to the holding arm, wherein the shaft may bring the rotor holder into swinging; the connecting frame may be fixed to the rotor holder to bring the imaging device into swinging; the connector may be connected between the shaft and the connecting frame; and the flexible wiring board may have one end connected to the holding arm and the other end thereof connected to the connecting frame, wherein a length of the flexible wiring board may remain unchanged while the imaging device is swinging. The invention also relates to a gimbal assembly using the gimbal driving device.

Claims

1. A gimbal driving device, comprising:

a holding arm;

a first motor comprising a shaft, a rotor holder connected with the shaft, and a shaft cover fixed to the holding arm, wherein the shaft enables the rotor holder to execute a swinging motion;

a connecting frame for fixing an imaging device, wherein the connecting frame is fixed to the rotor holder to enable the imaging device to execute a swinging motion;

a connector connected between the shaft and the connecting frame; and

a flexible wiring board having one end connected to the holding arm and the other end connected to the connecting frame, wherein a length of the flexible wiring board remains unchanged while the imaging device is executing the swinging motion.

2. The gimbal driving device according to claim 1, wherein the flexible wiring board is a flexible circuit board.

3. The gimbal driving device according to claim 1, wherein the holding arm has a body portion and an extension arm extending from the body portion;

the extension arm is arranged perpendicular to the body portion;

the connecting frame comprises a first end and a second end arranged opposite to each other, the first end being fixedly connected to the rotor holder, and the second end being rotatably connected to the imaging device.

4. The gimbal driving device according to claim 1, wherein a first receiving cavity is provided at the first end, and a rotor of the first motor is fixedly received in the first receiving cavity.

5. The gimbal driving device according to claim 4, wherein the shaft is fixed relative to the holding arm;

the rotor holder is rotatably connected with the shaft and is integrally formed with a housing of the first motor.

6. The gimbal driving device according to claim 4, wherein the gimbal driving device further comprises a second motor;

a second receiving cavity is provided at the second end; and

the second motor comprises a stator fixedly received in the second receiving cavity and a rotor fixedly connected to the imaging device.

7. The gimbal driving device according to claim 6, wherein the rotor of the second motor comprises a shaft and a rotor holder;

the rotor holder of the second motor is sleeved on the shaft of the second motor;

a connecting hole is provided on the shaft, and the connector comprises a connecting pin passing through the connecting hole of the shaft and connected with the imaging device.

8. The gimbal driving device according to claim 7, wherein a depth direction of the connecting hole is perpendicular to an extending direction of the shaft.

9. A gimbal assembly, comprising:

the gimbal driving device according to claim 1; and

an imaging device carried on the connecting frame.

10. The gimbal assembly according to claim 9, wherein the imaging device is a camera, a video camera or a camera lens.