JPH0675575U - Pachinko machine drive power supply - Google Patents

Abstract

(57) [Abstract] [Purpose] By stabilizing the frequency and voltage of the pachinko machine drive power supply, we aimed to stabilize the speed and voltage of the pachinko machine drive device, especially the ball launch device of the pachinko machine. An object is to provide a power supply device for driving a pachinko machine. [Composition] Commercial alternating current is converted into direct current by the first rectifier circuit 2, and converted into high frequency alternating current by the high frequency switching circuit 4 which receives a pulse from the high frequency oscillation pulse width modulation circuit 3 and performs switching operation, and is converted to about 33 VAC in the high frequency transformer section 5. The transformed and transformed high-frequency alternating current is converted into direct current by the second rectifier circuit 6, the direct current converted by the second rectifier circuit 6 is stabilized by the direct current stabilization circuit 7, and is output from the direct current stabilization circuit 7. A direct current of 24 VDC is converted into a commercial frequency AC by a switching circuit 9 which performs a switching operation by a pulse signal from the commercial frequency transmission circuit 8 and supplied to a pachinko machine. Further, the feedback means 10 adjusts the pulse width to stabilize the supply voltage when the voltage supplied to the pachinko machine fluctuates.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a power supply device for driving a pachinko machine, and more particularly to a power supply device for driving a pachinko machine that suppresses fluctuations such as voltage drop due to abrupt power consumption.

[0002]

[Prior art]

 Conventionally, a pachinko machine driving power supply at a pachinko parlor has used a 24 V alternating current as shown in FIG. 5, and this power supply transforms the secondary side power from a cubicle type high-voltage power receiving equipment to 100 V. Further, through the iron core type transformer T, it is transformed into 24 V AC as a tertiary power source and sent to the pachinko machine P.

The pachinko machine P usually has 24 to 28 (12 to 14 on one side) arranged in two rows on both sides to form one block, and the above-mentioned AC 24V power supply is provided at one end of this block. P is connected in parallel to supply the drive voltage. And, a plurality of such blocks are arranged.

[0004]

[Problems to be solved by the device]

 However, in the past, the power consumption per pachinko machine was low, but in recent years, each pachinko machine has a current of 5 to 6 A due to automation and progress of electrical decoration. The electric power per unit is about 120 to 144 W, and 5 to 6 of the iron core type transformer of 1 kW are required at the end of the one block. Since these iron-core type transformers are large, there is a problem that a large installation space is required.

Further, the load of a specific pachinko machine may suddenly rise and the voltage may suddenly drop, and the wiring distance between the iron core transformer and each pachinko machine is long (when reaching 20 m). Therefore, the line impedance is large, and the voltage of the entire block decreases due to an increase in current due to an increase in load, etc., which causes variations in the opening and closing time of transmission yakmono such as tulip, The ball launcher is delayed, and such delays in the ball launcher and variations in the operation of transmission yakmono cause a lot of damage to the manager. For example, when one pachinko machine becomes a so-called fever when the pachinko parlor is full, the voltage drop causes a delay in the closing operation of the transmission yakmono, making it easier for pachinko balls to enter. There is a problem that fever occurs in a chain.

The present invention has been made in view of such problems of the prior art, and an object of the present invention is to stabilize the frequency and voltage of the pachinko machine driving power supply, thereby enabling the pachinko machine driving device. In particular, the present invention intends to provide a pachinko machine driving power supply device that stabilizes the speed and voltage of a ball launch device of a pachinko machine.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, a pachinko machine driving power supply device according to the present invention comprises a first rectifier circuit for converting commercial alternating current into direct current, and a pulse from a high frequency transmission pulse width modulation circuit for direct current from the first rectifier circuit. A high-frequency switching circuit that receives and converts the high-frequency alternating current into a high-frequency alternating current by a switching operation, a high-frequency transformer that reduces the voltage of the high-frequency alternating current, a second rectifier circuit that converts the transformed high-frequency alternating current into direct current, and the second rectifier circuit. A direct current stabilizing circuit that stabilizes the direct current converted by the direct current; a switching circuit that converts the direct current output from the direct current stabilizing circuit into a commercial frequency alternating current by a pulse signal from the commercial frequency transmitting circuit; Feedback means having a control circuit for detecting an AC voltage of a frequency and controlling the pulse width of the first high frequency pulse width modulation circuit. Readback means, can the voltage supplied to the pachinko machine is changed, characterized in that it is configured to adjust the pulse width.

[0008]

[Action]

 According to the pachinko machine driving power supply device of this invention, the applied commercial alternating current is converted into direct current by the first rectifying circuit, and then the high frequency alternating current is switched by the high frequency switching circuit by the transmission from the high frequency transmission pulse width modulation circuit. The converted high frequency AC is converted into a high frequency AC close to the pachinko machine drive voltage by the high frequency transformer. Further, the transformed high-frequency alternating current is converted into a direct current by the second rectifier circuit, and then is converted into a commercial frequency alternating current by the switching circuit that performs the switching operation by the commercial frequency oscillation circuit through the direct current stabilizing circuit. This commercial frequency AC is supplied to the pachinko machine to drive it.

[0009]

【Example】

 An embodiment of the present invention will be described with reference to FIGS. 1 is a block diagram showing an embodiment of a pachinko machine driving power supply device according to the present invention, and FIG. 2 is a circuit diagram showing an embodiment of a pachinko machine driving power supply device according to the present invention.

An embodiment of a pachinko machine driving power supply device 1 according to the present invention is, as shown in FIG. 1, a first rectifying circuit 2 for converting commercial alternating current into direct current and a high frequency direct current from the first rectifying circuit 2. A high frequency switching circuit 4 which receives a pulse from the oscillation pulse width modulation circuit 3 and converts it into a high frequency alternating current by a switching operation, a high frequency transformer 5 which reduces the voltage of the high frequency alternating current, and a transformed high frequency alternating current to a direct current. A second rectifier circuit 6, a direct current stabilization circuit 7 for stabilizing the direct current converted by the second rectification circuit 6, and a direct current output from the direct current stabilization circuit 7 into a pulse signal from a commercial frequency oscillation circuit 8. A switching circuit 9 for converting to a commercial frequency AC and a control circuit for detecting the AC voltage of the commercial frequency and controlling the pulse width of the high frequency oscillation pulse width modulation circuit 3. The basic configuration is that the feedback means 10 is provided.

The first rectifier circuit 2 is, for example, as shown in FIG. 2, configured by a bridge-type rectifier circuit using a diode, and converts the commercial AC 100V input from the input terminal A into a direct current 100V. Rectify. The commercial AC 100V has its noise removed by a smoothing circuit composed of capacitors connected in parallel.

As the high-frequency switching circuit 4, for example, as shown in FIG. 2, a high-frequency field-effect transistor (FET) 4a for high frequency is used to enhance the switching performance. The high frequency oscillation pulse width modulation circuit 3 uses a dedicated monolithic integrated circuit IC1 to stabilize the voltage high. For example, the direct current output from the first rectifier circuit 2 flows out from the primary side coil 5a that constitutes the high frequency transformer 5, then flows into the collector terminal of the field effect transistor 4a, and the direct current of the field effect transistor 4a. The output of the integrated circuit IC 1 for high frequency transmission, which is connected to the base terminal, causes the field effect transistor 4a to perform a switching operation to be converted into high frequency alternating current.

The high-frequency AC output thus converted is matched with the rated voltage 24V of the drive device such as the induction motor used in the pachinko machine, so that the high-frequency AC output passes through the secondary side coil 5b of the high-frequency transformer 5 to reach 33V. It is converted into alternating current and output. A ferrite core transformer is used for the high frequency transformer 5 so as to reduce current loss due to high frequency. In addition, such a high-frequency transformer is lighter and smaller than the iron core type transformer used in the conventional series control system, so that a large space is not necessary.

Further, the AC voltage output as described above is converted into 24V DC through the second rectifier circuit 6 including the diode 6a and the like and the DC stabilizing circuit including the Zener diode 7a and the transistor 7b and the like. To be done. The 24VDC output from the second rectifier circuit 6 is the constant voltage switching integrated circuit I C2 constituting the commercial frequency oscillator circuit E1. The commercial frequency output from the E2 terminal is output to the output terminal B as the commercial frequency 24 VAC by driving the phototransistors PC1 and PC2 and switching the field effect transistor 9a, and the commercial frequency 60 shown in FIG. It is shaped into a Hertz (or 50 Hertz) square wave.

The output from the switching circuit 9 is detected by the detection circuit 10a, and the output from the detection circuit 10a is compared by the comparison circuit 10b. When the output is out of the comparison value, the high frequency oscillation pulse width modulation circuit outputs the pulse width. Since it is possible to change the magnitude of the base current to be output and the time interval by providing the feedback means 10 for providing an output that modulates, the voltage generated in the secondary coil of the high frequency transformer 5 and its frequency are changed. I am able to do this.

For example, when the voltage of one pachinko machine in the block suddenly increases and the voltage drops to 23 V, the feedback means 10 changes the pulse width to the high frequency oscillation pulse width modulation circuit 3. A signal to spread and add 1 V is given. That is, in this case, a voltage of 25 V is generated in the secondary coil of the high frequency transformer 5. Then, when the fluctuation of the load subsides and the voltage drop disappears, the feedback means 10 stops the signal and restores the original voltage.

The driving power source 1 configured as described above is provided for each pachinko machine as shown in FIG. 4 in order to reliably provide a stable voltage, and each pachinko machine is equipped with one. In the machine P, a commercial AC 100VAC is converted into a commercial frequency 24VAC and supplied to the pachinko machine P.

In this embodiment having such a configuration, since the DC stabilizing circuit is used, the power conversion efficiency is good and the power consumption is small, and moreover, the ball launching device of the pachinko machine is equipped with a commutator. Since it is possible to use an induction motor that does not have one, it is possible to save labor for maintenance and inspection. Further, since the output voltage and its frequency are always kept constant by the feedback means, it is possible to prevent fluctuations in the rotation speed and torque of the electric motor. In addition, it is desirable to have a backup power supply for the momentary power failure.

[0019]

[Effect of device]

 In the pachinko machine driving power supply device according to the present invention, the transformer can be downsized to save space, and since the voltage is stabilized, the power consumption is reduced, and moreover, the pachinko machine drive Since it is possible to use an induction motor without a commutator for the ball launching device, the labor required for maintenance and inspection can be reduced. Further, since the output voltage and its frequency are always kept constant by the feedback means, it is possible to prevent fluctuations in the rotation speed and torque of the electric motor.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a pachinko machine driving power supply device according to the present invention.

FIG. 2 is a circuit diagram showing an embodiment of a pachinko machine driving power supply device according to the present invention.

FIG. 3 is a waveform diagram showing an output waveform of the above embodiment.

FIG. 4 is a block wiring diagram showing a usage state of the above embodiment.

FIG. 5 is a block wiring diagram showing a usage state of a conventional pachinko machine driving power supply device.

[Explanation of symbols]

 1 Pachinko machine driving power supply device 2 First rectifier circuit 3 High frequency oscillation pulse width modulation circuit 4 High frequency switching circuit 5 High frequency transformer section 6 Second rectification circuit 7 DC stabilizing circuit 8 Commercial frequency oscillation circuit 9 Switching circuit 10 Feedback means

Claims (1)

[Scope of utility model registration request] 1. A first rectifier circuit for converting commercial alternating current to direct current, and a high frequency switching circuit for converting direct current from the first rectifier circuit to high frequency alternating current by receiving a pulse from a high frequency oscillation pulse width modulation circuit and performing a switching operation. A high-frequency transformer for reducing the voltage of the high-frequency alternating current; a second rectifier circuit for converting the transformed high-frequency alternating current into direct current; a direct current stabilizing circuit for stabilizing the direct current converted by the second rectifier circuit; A switching circuit that converts the direct current output from the stabilizing circuit into a commercial frequency alternating current by a pulse signal from the commercial frequency transmitting circuit, and an alternating voltage of the commercial frequency is detected, and the pulse width of the first high frequency pulse width modulation circuit is determined. And a feedback means having a control circuit for controlling, wherein the feedback means is provided when the voltage supplied to the pachinko machine fluctuates. A pachinko machine driving power supply device, characterized in that the pulse width is set to be adjusted.