Control device for driving motor
A control device and motor technology, applied in the direction of AC motor control, control system, electrical components, etc., can solve the problems of long time, laborious operation, and inconvenience.
Inactive Publication Date: 2007-06-13
REXON IND CORP LTD
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Problems solved by technology
[0002] Among the known woodworking machines, taking the table saw machine as an example, except that the saw blade is driven by an electric motor, other operations, such as the adjustment of the cutting height of the saw blade or the adjustment of the cutting angle of the saw blade, are all manually operated. , this kind of adjustment method is generally by rotating a hand wheel located outside the table saw machine, one end of which is connected to the center of the hand wheel in conjunction with the screw rod, and then drives a screw screwed with the screw rod and connected to the saw blade The saw blade base is used to move the saw blade synchronously, but this kind of mechanical mechanism is laborious in operation, and it takes a long time to adjust the saw blade to the position, which is not convenient enough
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[0054] As shown in FIG. 1, the first preferred embodiment of the present invention provides a control device 10 for driving an adjusting motor 61. The adjusting motor 61 is driven by a direct current and has a rotating shaft and two power terminals 62, 64 , The control device 10 is mainly composed of a switching device 21, a first circuit 23, a second circuit 26, a third circuit 29, a fourth circuit 30, a first operating switch 31, a power supply module 41, and a second circuit. Two operation switches 51 are composed of:
[0055] The switching device 21 has a first, a second normally closed switch 24, 25, and a first, a second normally open switch 27, 28, and has the ability to switch these switches, generally using a processor or A conduction control coil 22 completes the switching task. In this embodiment, the switching device 21 takes the conduction control coil 22 as an example for description, that is, the switching device 21 is a relay 21.
[0056]The power supply module 41 ...
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The invention discloses a control device in use for driving an adjustment motor. A direct current drives the motor. The control device includes following parts: a switching unit possesses a first normal close switch, a second normal close switch, a first normal open switch, and a second normal open switch; a power supply module for providing DC power source; a first operation switch, when the first operation switch is in short circuit, the two normal close switches turn to open circuit, and the two normal open switches turn to short circuit, thus, the driven adjustment motor rotates in first direction; a second operation switch is in use for driving the adjustment motor rotating in second direction, which is opposite to first direction. Features are: simple circuit architecture controls rotating direction of the adjustment motor.
Description
Technical field [0001] The present invention is related to a control device for driving an adjustment motor, and particularly refers to a control technology for the rotation direction of the adjustment motor. Background technique [0002] In the known woodworking machinery, taking the table saw as an example, except that the saw blade is driven by an electric motor, other operations, such as the cutting height of the saw blade or the cutting angle adjustment of the saw blade, are all operated manually This adjustment method is generally by rotating a hand wheel located outside the table saw machine, linking one end of the screw fixed to the center of the hand wheel, and then driving a screw screw with the screw and connecting the saw blade The saw blade base is used to move the saw blade synchronously. However, this mechanical mechanism is laborious in operation, and it takes a long time to adjust the saw blade to position, which is not convenient enough. [0003] In view of this...
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IPC IPC(8): H02P23/00H02P25/18H02P27/06
Inventor 张言志
Owner REXON IND CORP LTD