JP2008167817A5 - - Google Patents

Claims (5)

A power supply board that creates various voltages from power supplied from the Pachinko Island facility, and a four-phase circuit that is supplied with the various voltages from the power supply board and that has an A phase, a / A phase, a B phase, and a / B phase. A control board on which a microprocessor for driving and controlling the stepping motor is mounted;
A pachinko machine equipped with
The control board further includes:
Drive IC that outputs drive pulses to the four-phase stepping motor based on a control signal from the microprocessor
With
The drive IC is at least
An A-phase transistor chip that outputs the drive pulse to the A-phase of the four-phase stepping motor;
A transistor chip for / A phase that outputs the drive pulse to / A phase of the four-phase stepping motor;
A B-phase transistor chip that outputs the drive pulse to the B-phase of the four-phase stepping motor;
A transistor chip for / B phase that outputs the drive pulse to / B phase of the four-phase stepping motor;
A flyback voltage absorbing diode for A phase that converts back electromotive force generated when the drive pulse is interrupted to A phase of the four-phase stepping motor into heat;
The back-electromotive force generated when the drive pulse is cut off to the / A phase of the 4-phase stepping motor is formed into a chip with the A-phase flyback voltage absorbing diode, and converted to heat / A phase A flyback voltage absorbing diode;
A flyback voltage absorbing diode for B phase that converts back electromotive force generated when the drive pulse is interrupted to B phase of the stepping motor into heat;
The B-phase flyback voltage absorbing diode is formed into a chip, and the back electromotive force generated when the drive pulse is cut off to the / B phase of the four-phase stepping motor is converted into heat. A flyback voltage absorbing diode;
Is built-in,
The microprocessor is at least
Chip of A-phase flyback voltage absorption diode and / A phase flyback voltage absorption diode, B-phase flyback voltage absorption diode and / B-phase flyback voltage absorption diode chip Drive control means for outputting the control signal to the A-phase transistor chip, the / A-phase transistor chip, the B-phase transistor chip, and the / B-phase transistor chip so that heat can be dissipated alternately. A pachinko machine characterized by comprising. The pachinko gaming machine according to claim 1,
A power supply board box for storing the power supply board;
A control board box for accommodating the control board;
A substrate holder capable of overlappingly mounting the control substrate box on the upper surface of the power supply substrate box;
A pachinko machine characterized by comprising: The metal heat dissipating plate for dissipating heat generated from the power supply board box located on the lower side is provided between the power supply board box and the control board box. The pachinko machine described. The pachinko gaming machine according to claim 3, wherein an uneven surface having a vertical or inclined shape is formed on the plate surface of the heat radiating plate so that heat is easily radiated. The pachinko gaming machine according to claim 3 or 4, wherein the heat radiating plate radiates heat generated from the power supply board and prevents an influence of electromagnetic waves emitted from the power supply board.