JPH0461598U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view illustrating the configuration of an embodiment of the rate gyroscope for models according to the present invention, Fig. 2 is a perspective view of the main parts of the gimbal unit, Fig. 3 is a detailed explanatory view of the rotation angle sensor section, and Fig. 3 is a detailed illustration of the rotation angle sensor section. Figure 4 is an explanatory diagram of the gimbal axis rotation angle detection function, Figure 5 is a plan view showing the flexible board expanded, Figure 6 is an explanatory diagram of the state in which the flexible board is fixed to the gimbal axis, and Figure 7 is a model aircraft. FIG. 8 is an explanatory diagram of a schematic structure of an example of a conventional rate gyro for models used in a stability augmentation device, and FIG. 8 is an explanatory diagram of the operation of a conventional rotation angle sensor using a Hall sensor. DESCRIPTION OF SYMBOLS 1... Upper casing, 2... Lower casing, 3... Gimbal, 4... Gimbal axis, 5... Motor shaft, 6... Motor, 7... Flywheel, 9... Centering spring, 10...
...Bearing, 13...Screw, 16...Hall sensor as magnetic detector, 18...Flexible printed circuit board, 20...Magnetic holder, 2
1...Output cord for motor power supply and Hall sensor input/output lines.

Claims (1)

[Claims for Utility Model Registration] (1) A gimbal having a gimbal axis and rotatably supported by a frame around the axis of the gimbal axis; and a gimbal that rotates around an axis perpendicular to the gimbal axis. A rate gyro for models, comprising: a flywheel that is freely supported and rotationally driven by a motor; and a centering spring that is provided between the frame and the gimbal and biases the gimbal to a neutral position. , characterized in that one diametrical end is fixed to the gimbal shaft, the other diametrical end opposite to this one end is fixed to the frame, and a substantially cylindrical flexible printed circuit board is provided with a conductor printed thereon. Rate gyroscope for models. (2) In claim (1), the flexible printed circuit board is arranged so that a connecting part between a fixed part fixed to the gimbal shaft and a power supply line drawn out from the motor for supplying drive current to the motor is located nearby. The first to have
a second part having a fixed part fixed to the frame and a connecting part to a supply line extending from a power supply side for supplying drive current to the motor in the vicinity; A rate gyroscope for models characterized by comprising: a flexible connecting part which connects the parts symmetrically and has a printed wiring conductor connecting a power supply line drawn out from the motor and a supply line extending from the power source side. . (3) In claim (1), the flexible printed circuit board includes: a fixed part fixed to the gimbal shaft; and a connecting part with a power supply line drawn out from the motor to supply drive current to the motor; a first part having a mounting part for a rotation angle detector that detects the rotation angle of the gimbal axis and an input/output line connection part for the rotation angle detector in the vicinity; a fixing part fixed to the frame; a second portion having nearby a connection portion for connecting a supply line extending from the power supply side to supply a drive current to the motor, and a connection portion for connecting an input/output line from a control circuit of the rotation angle detector; The first part and the second part are connected symmetrically with respect to a straight line connecting the midpoints of the first part and the second part, and a power supply line drawn out from the motor and a supply line extended from the power supply side are connected. A rate gyro for models, characterized in that it is comprised of a flexible connecting part in which a connecting conductor and a conductor connecting input/output lines from the rotation angle detector and the control circuit are printed and wired.