JPH04343871A - Control circuit of game machine - Google Patents

Abstract

PURPOSE:To prevent a breakage in an operation control circuit of a game machine and in an operating portion even if a power supply plug is inserted in a plug socket for voltage more than a rated voltage by mistake at the time of supplying voltage to an operating portion of the game machine. CONSTITUTION:A game machine includes plural operation control circuit portions 20-50 for electrically controlling the respective operating portions. A power supply plug 4 for supplying the driving voltage from a main power supply 3 is connected to the above operation control circuit portions, and a protection circuit 10 is disposed between the power supply plug 4 and the above operation control circuit portions 10-50. The protection circuit 10 includes a voltage monitoring circuit portion 11 and an abnormality detecting circuit portion 12. The voltage monitoring circuit portion 11 detects the voltage more than a designated value supplied from the main power supply 3 and inhibits the supply of voltage to the operation control circuit portions 10-50. The abnormality detection circuit portion 12 gives a foreman notice that the voltage is more than a designated value by lighting a warning lamp 63.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control circuit for a game machine, and more particularly to a control circuit for a game machine having a protection function to prevent damage to the operation control circuit section due to excessive voltage application.

0002

[Prior Art] In recent years, gaming machines such as pachinko machines are equipped with various operating devices such as various decorative lamps, LEDs, accessories (variable prize winning devices), etc., and by electrically driving these, the gaming state can be varied. This is done to increase the interest of the players. These various operating devices are installed in the control circuit of the gaming machine when a desired voltage (24V) supplied via the power cord is applied from the outlet for a specific voltage (for example, 24V) of the island equipment. The operation is controlled by the function of the operation control circuit section.

0003

[Problem to be solved by the invention] However, the above 2
The island facility where the 4V outlet is installed also has many other outlets for supplying power with different voltage values, such as a 100V outlet for the voltage supply equipment for ball lending machines. If staff members mistakenly insert the 24V plug of the gaming machine into these other outlets (for example, a 100V outlet), excessive voltage will be supplied to the gaming machine, which will damage the gaming machine's operation control circuitry and even its operation. There was a problem with the equipment being destroyed.

[0004] Particularly in recent years, gaming machines such as pachinko machines have become increasingly electronically controlled, and for example, many control devices, such as prize ball ejecting devices that were conventionally configured mechanically, are now electrically controlled. Therefore, if a voltage of 24V or more is supplied to the control circuit of the gaming machine, there is a risk that all of these many control devices will be destroyed.

[0005] Also, when supplying the power supply voltage to the gaming machine for inspection work performed at the time of factory shipment of the gaming machine, the 24V plug of the gaming machine may be mistakenly connected to another voltage installed at the factory. (100V) may be plugged into a power outlet.
This has caused a problem in that the operation control circuit section of the gaming machine may be destroyed.

The present invention was made in view of the above-mentioned circumstances, and it is possible to accidentally connect a power plug for supplying voltage to the operation control circuit section of a gaming machine to an outlet for a voltage other than the rated voltage (24V). It is an object of the present invention to provide a control circuit for a game machine that prevents the operation control circuit section of the game machine and furthermore the operation device from being destroyed even when the game machine is inserted.

[0007]

[Means for Solving the Problems] In order to achieve the above object, a control circuit for a gaming machine according to claim 1 of the present invention includes one or more control circuits for electrically controlling an operating section disposed in a gaming machine. A voltage supply source that is interposed between the operation control circuit section, a voltage supply source that supplies driving power to these operation control circuit sections, and the operation control circuit section, and that detects when the voltage supplied from the voltage supply source has exceeded a predetermined value. It includes a voltage monitoring circuit unit that detects and outputs a signal, and a voltage supply prohibition circuit unit that prohibits the supply of voltage from the voltage supply source to the operation control circuit unit based on the signal from the voltage monitoring circuit unit. . Further, the control circuit for a gaming machine according to claim 2 of the present invention includes one or more operation control circuit units that electrically control an operating unit disposed in the gaming machine, and a supply voltage from a voltage supply source. a voltage supply circuit section that distributes a voltage to the operation control circuit section, and a supply voltage from a voltage supply source that is sent to at least one of the one or more operation control circuit sections via the voltage supply circuit section. a voltage monitoring circuit unit that detects that the voltage has exceeded a predetermined value and outputs a signal; and a voltage supply prohibition circuit unit that prohibits the supply of voltage from the voltage supply source based on the signal from the voltage monitoring circuit unit. A protection circuit is installed.

[0008]

[Operation] In the control circuit for a gaming machine according to claims 1 and 2 of the present invention, a power plug of the gaming machine is inserted into an outlet for a power supply voltage higher than the rated voltage, and a voltage higher than the rated voltage is supplied through the power plug. Even if the voltage is supplied to the control circuit of the gaming machine, the voltage monitoring circuit section detects this, and the voltage supply prohibition circuit section controls each operation from the voltage outlet based on the signal from the voltage monitoring circuit section. Prohibits supply of voltage to the control circuit section.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a gaming machine to which a control circuit according to the present invention is applied will be described with reference to the accompanying drawings.

(First Embodiment) FIG. 1 shows the internal configuration of a control circuit 2 of a pachinko gaming machine equipped with a protection circuit 10 according to a first embodiment of the present invention, and the relationship between the control circuit 2 and the main power supply. 3
FIG.

The pachinko game machine to which this embodiment is applied has protection in its control circuit 2 to prevent damage to each operation control circuit section due to the overvoltage when a voltage (overvoltage) exceeding a predetermined value is supplied to the game machine. circuit 10, an accessory control circuit unit 20 that controls the operation of a variable winning device (accessory) installed on the game board;
A prize ball discharge control circuit section 30 for electrically controlling the discharge of prize balls, a firing device control circuit section 40 for electrically controlling the operation of a batted ball firing device (not shown), and a firing device control circuit section 40 that is adjacent to the gaming machine. It includes a card reader control circuit section 50 and the like for controlling the operation of a card-type ball lending machine (not shown).

As shown in the figure, the protection circuit 10 monitors the value of the voltage supplied from the main power source 3 via the power plug 4 (see FIG. 2), and also controls the voltage for the four operations described above. A voltage monitoring circuit unit 11 that supplies the control circuit unit (accessories control circuit unit 20, prize ball ejection control circuit unit 30, launcher control circuit unit 40, card reader control circuit unit 50), and from the voltage monitoring circuit unit 11 When the power supply voltage supplied from the main power supply 3 is higher than a predetermined value (for example, 35V) based on the output signal of Abnormality detection circuit section (having a function as a voltage supply prohibition circuit section) 1 that performs operation control in the event of an abnormality such as prohibiting voltage supply to the circuit section
It consists of 2.

More specifically, the voltage monitoring circuit section 11 of the protection circuit 10 determines whether or not the voltage supplied from the main power supply 3 has exceeded a predetermined voltage value (for example, 35V), and When the applied voltage is below a predetermined value, normal operation is performed, that is, the supply voltage from the main power source 3 is distributed and supplied to the four control circuit sections. Then, when it is determined that the supply voltage from the main power source 3 is equal to or higher than a predetermined value (35V), the voltage monitoring circuit section 11 outputs a signal indicating that there is an abnormality to the abnormality detection circuit section 12.

The abnormality detection circuit section 12 includes an auxiliary power source (battery) 61 for controlling the operation in the event of an abnormality, a speaker 62 for notifying staff of abnormal conditions, and an abnormality warning lamp 82. The abnormality detection circuit section 12 operates the speaker 62 and the abnormality warning lamp 82 using the voltage supplied from the battery 61 when receiving a signal indicating an abnormality from the voltage monitoring circuit section 11. .

On the other hand, the supply voltage from the main current 3 has an abnormal value (
Voltage monitoring circuit section 11 that detected that the voltage is 35V or higher)
is adapted to prohibit the supply of voltage to the four control circuit units 20, 30, 40, and 50.

Of the four operation control circuit sections shown in FIG. 1, the prize ball discharge control circuit section 30 is a circuit for driving an electrically controlled prize ball discharge operation member (solenoid) not shown. The firing device control circuit section 40 controls the operation of a rotary solenoid for firing a ball (in a ball firing device using this solenoid, the solenoid is electrically driven even when a pachinko game is not being played). This is the circuit section for carrying out the operation. Further, the card reader control circuit unit 50 is a circuit unit for driving a card reader for prepaid cards installed in the pachinko game machine applied in this embodiment, and Prepaid card memory contents (balance)
Then, based on a signal from a ball lending operation unit (see FIG. 6), which will be described later, game balls are rented out (a prize ball ejecting device is used to eject the rented game balls at this time).

Next, a specific circuit configuration of the protection circuit 10 will be explained using FIG. 2. The protection circuit 10 includes each control circuit section 20, 30, 40, 50 of the pachinko gaming machine,
It is arranged between the power plug 4 and the power plug 4. This protection circuit 10 includes a varistor 11a that functions as a voltage monitoring circuit section 11 that monitors whether the value of the voltage supplied from the main power supply 3 via the power plug 4 is greater than a predetermined value (for example, 35V), and A fuse 12a and a relay that function as an abnormality detection circuit section 12 that cuts off the voltage supply from the main power source 3 and notifies staff of the occurrence of an abnormality when the supplied voltage is above a predetermined value (35V). 12b.

More specifically, in the protection circuit 10, two terminals 13a and 13b on the input side and two terminals 1 on the output side
4a and 14b are electrically connected by two voltage supply lines 15 and 16, respectively, and these two electric wires 15 and 1
A varistor 11a is connected between points A and B of 6. A fuse 12a is arranged on the power plug 4 side of the contact point A between the varistor 11a and one electric wire 15.

By the way, the varistor 11a thresholds a voltage value (for example, 35V) that is slightly higher than the desired voltage (for example, 24V) to be supplied to each control circuit section (20, 30, 40, 50) of the gaming machine. value. Therefore, when the voltage applied between the ends A and B of the varistor 11a is lower than the above threshold value (35V), the varistor 11a exhibits high resistance characteristics, and when the applied voltage becomes higher than the above threshold value. The resistance value suddenly decreases, creating a substantial short-circuit condition within the protection circuit 10.

On the other hand, the fuse 12a prevents an excessive current (short circuit) flowing through the protection circuit 10 when the voltage applied to both ends of the varistor 11a becomes higher than the predetermined value (35V) and its resistance value drops extremely. It is constructed so that it is immediately blown out by the current flowing under the condition.

Further, the relay 12b, which constitutes the abnormality detection circuit section 12 in cooperation with the fuse 12a, opens the switch 64 when current is flowing through the coil section 15a formed in the middle of the electric wire 15. The switch 64 is configured to close when the flow of current in the electric wire 15 is interrupted by blowing out the fuse 12a.

The protection circuit 10 having such a configuration operates as follows when power supply voltage is supplied from the main power supply 3 to the pachinko game machine. That is, when the power plug 4 of the game machine is inserted into the 24V outlet (main power supply) of the island equipment,
The potential difference between points A and B of the protection circuit 10 is 24V, and the varistor 11a has a high resistance value. At this time, substantially no current flows between points A and B. Therefore, the protection circuit 10
From the output terminals 14a and 14b of
(normal time).

On the other hand, if the power plug 4 is accidentally inserted into a 100V outlet (ball lending machine outlet) of the island equipment, the potential difference between points A and B of the protection circuit 10 will be 100V.
V, the resistance value of the varistor 11a decreases extremely,
The point A and B of the protection circuit become substantially short-circuited. As a result, a large amount of current is sent through the power plug 4 to each control circuit section (20, 30, 40, 50) of the gaming machine.
), but instead flows through the varistor 11a and the fuse 12a arranged closer to the main power source than the varistor 11a.

In this way, the voltage of 100V is applied to the protection circuit 1.
When applied to the input sides 13a and 13b of varistor 1
A large amount of current flows through the fuse 12a disposed closer to the main power source 3 than the fuse 1a, and the fuse 12a is blown by this current. By blowing the fuse 12a, the protection circuit 10
No current flows therein, and the switch 64 of the relay 12b, which had been open until then, is closed by the action of the return spring 65. When the protection circuit 10 is short-circuited and the fuse 12a is blown, the circuit on the abnormality detection circuit section 12 side is closed, and the voltage from the battery 61 as the auxiliary power source is applied to the speaker 62 as the abnormality notification means, and the abnormality detection circuit 12 side is closed. The signal is supplied to the warning lamp 82, which causes an abnormality notification operation (the generation of an abnormality warning sound from the speaker 62, the abnormality warning lamp 8).
2 lighting) is performed.

As described above, by installing the protection circuit 10 between the power plug 4 of the game machine and each control circuit section in advance, the staff can accidentally connect the power plug 4 to 100V.
Even when the game machine is plugged into a power outlet, a voltage (100V) that far exceeds the rated voltage (24V) is not applied to each operation control circuit section 20, 30, 40, 50 of the game machine, and each operation control circuit section described above is protected.

Note that each operation control circuit section 20, 3 shown in FIG.
Inside the 0, 40, and 50, there are multiple external connection terminals, indicator lamps, speakers, various switches, motors that operate the accessories, solenoids (accessories control circuit 20), and prize ball ejection circuit (prize ball ejection circuit). A control circuit section 30), a touch switch circuit, a firing motor (launching device control circuit section 40), etc. are provided, and these various devices have power supply voltages from power terminals 14a and 14b set to desired voltages within each control circuit. It is supplied after being transformed into a voltage.

FIG. 3 is a perspective view showing the external appearance of the power supply unit 100 to which the protection circuit 10 of FIG. 2 is installed. This power supply unit 100 is installed on the upper right side of the back side of the gaming machine 1, as shown in FIG. 5, which will be described later.
01, power plug inserted into the main power supply 4, protection circuit 1
A storage unit 110 in which 0 is stored, the power plug 4
The voltage supplied from the main power supply through the accessory control circuit section 2
0, a power transmission connector 122 for supplying the above-mentioned supply voltage to the prize ball ejection control circuit section 30;
, a power transmission connector 123 for supplying supply voltage to the launch device control circuit section 40, and a power transmission connector 124 for supplying supply voltage to the card reader control circuit section 50.
, various detection signals from multiple switches/sensors installed on the game board (not shown) (for example, jackpot information signal, fraud signal, replenishment count signal, ball loan count signal, collected ball count signal, prize ball output count signal, A plurality of output terminals 131 to 137 are provided to relay signals (signals representing a variable number of games, etc.) and output them to respective operation control circuit sections corresponding to the contents of these signals.

Next, the specific structure of the storage unit 110, which is one component of the power supply unit 100, will be explained. The storage unit 110 has a base frame 1 as shown in FIG.
11, an opening/closing door 112 attached to the base frame 111 so as to be freely openable and closable, a cartridge 130 in which the above-mentioned protection circuit 10 is mounted, and a storage section 113 in which the cartridge 130 is stored.

Among these, the housing portion 113 is provided with a large number of connection holes 113a, and connection pins 133 provided in the cartridge body 130 of the protection circuit 10 are inserted into the connection holes 113a. circuit 10
The cartridge 130 is installed in the storage unit 110, and electrical signals are exchanged between the cartridge side (protection circuit 10) and the storage unit side (main power supply, operation control circuit section). There is. Note that the connection pin 133 and the connection hole 113a are connected to a voltage far exceeding the rated voltage (24V) (for example, 100V).
It is made of a material that can withstand this voltage.

Furthermore, the cartridge body 13 of the protection circuit 10
0 is provided with an installation part 131 for the fuse 12a on the upper part thereof, and a varistor 11a is provided on the lower side of the installation part 131.
An installation section 132 is provided. Further, a large number of the above-mentioned connection pins 133 are implanted on the back side of the cartridge main body 130 of the protection circuit 10, and these pins 133 are inserted into the connection holes 113a on the storage section 113 side. Further, a relay 12b (not shown in the figure) that forms part of the abnormality detection circuit is attached to the cartridge main body 130, and a switch 64 of this relay 12b is turned ON/OFF.
Is the rated voltage being supplied to the gaming machine according to the F status?
Alternatively, it is possible to detect whether a voltage higher than the fixed voltage is being supplied.

Furthermore, when storing the cartridge main body 130 to which the protection circuit 10 is attached as described above in the storage unit 110, by inserting the pin 133 into the connection hole 113a and making it detachable, the voltage is much lower than the fixed voltage. A large voltage (35V or more) is applied to the fuse 12a.
When the protection circuit 10 is fused, the entire protection circuit 10 can be easily replaced and the gaming machine can be operated normally thereafter (FIG. 4).

[0032] The power supply unit 100, which is roughly configured as described above, is installed on the upper right side of the back side of the pachinko game machine 1, as shown in FIG. The power supply unit 100 installed in this manner monitors the value of the supply voltage sent through the power plug 4 by the action of the protection circuit 10 installed therein, and also ensures that this value is within the permissible range (35V or less). ), this voltage is applied to each operation control circuit section of the gaming machine 1 (
20, 30, 40, 50).

Among the above-mentioned operation control circuit sections 20 to 50, the accessory control circuit section (accessory object control device) 20 is installed on the left side of the center on the back side of the gaming machine 1, and the prize ball discharge control circuit section (prize ball discharge control circuit section) The device 30 is installed approximately at the center of the prize ball ejecting mechanism 71 formed to surround the game board mounting section 73 (at the center on the right side of the back surface of the game machine). Further, a firing device control circuit section (firing control device) 40 is installed at the bottom left of the back surface of the game machine 1 (corresponding to the operating handle installation position on the front surface), and a card reader control circuit section (card reader control device) 50 is installed in the firing device. It is installed above the control circuit section 40. The card reader control circuit section 50 is electrically connected to a card reader body 72 (see FIG. 6) installed at the lower right of the gaming machine by a lead wire 73, and a lead wire is connected from the card reader body 72 to the card reader body 72 (see FIG. 6). Game balls are lent out based on prepaid card information sent via 73 and a signal from a ball lending operation section 76, which will be described later. Such lending of game balls is performed by ejecting the game balls from the prize ball ejecting mechanism 71. In addition, 74 in the figure indicates a storage tank in which prize balls are stored,
Reference numeral 75 indicates a winning ball processing unit that processes game balls that have won into winning holes (not shown) of the game board.

FIG. 6 is a perspective view showing the front side of the pachinko game machine 1 to which the protection circuit 10 according to the present embodiment is applied. As shown in the figure, a card reader main body 72 for reading information on a prepaid card inserted by a player is installed at the lower left side of the gaming machine 1.
The second card insertion section 72a opens on the front side of the gaming machine 1.

Further, on the right front side of the batted ball supply tray 75 of the gaming machine 1, there are a display section for displaying information (balance amount) stored in the prepaid card, and a ball lending operation section 76 for selecting the number of game balls to be loaned. It is provided. Furthermore, this gaming machine 1 has a plurality of display lamps 81 and 82 at the upper center of the front frame 80.
, 83 are provided, of which the lamp 82 in the middle is lit by the function of the abnormality detection circuit section 12 shown in FIG. 1 (an abnormality warning lamp).

As detailed above, the protection circuit 1 of this embodiment
According to 0, the power plug 4 of the game machine is connected to the rated voltage (24V
), even if the game machine is plugged into an outlet with a significantly higher voltage (for example, 100V), just by blowing the fuse 12a in the protection circuit 10, the high voltage will be supplied to each operation control circuit section of the game machine. Therefore, these operation control circuits are protected. In addition, protection circuit 1
0 is attached to the removable cartridge 130 in the power supply unit 100, it is easy to replace the protection circuit whose fuse 12a has been blown due to application of a significantly large voltage with a new protection circuit.

In the protection circuit 10 of the above embodiment, a varistor whose resistance value suddenly decreases when a voltage of 35V, which is slightly higher than the rated voltage (24V), is applied is used; however, the varistor is not limited to this. The protection circuit may be created using a varistor whose resistance value immediately drops rapidly when the voltage (24V) is exceeded.

(Second Embodiment) Next, a second embodiment of a control circuit to which the protection circuit according to the present invention is applied is shown in FIG.
Explain with reference to.

In the control circuit of this second embodiment, the gaming machine 1
Each power supply circuit 22 of a plurality of (four in the embodiment) operation control circuit units 220, 230, 240, and 250 installed in
Protection circuits 220b, 230b, 240b, 250b are installed inside 0a, 230a, 240a, 250a,
Four protection circuits 220b installed in these power supply circuits
, 230b, 240b, and 250b are configured to protect the corresponding control circuit sections 220, 230, 240, and 250, respectively.

[0040]The above protection circuits 220b, 230b,
240b and 250b are the protection circuit 1 shown in the first embodiment.
0 (see Figure 2), therefore, when the voltage applied to its input side is below a predetermined value (35V), the internal resistance increases and the voltage on its output side is applied to the input side. The voltage will be the same as the voltage applied. Furthermore, when the applied voltage is above the predetermined value (35V), the resistance value of the varistor rapidly decreases, creating a short circuit within the protection circuit.

As shown in FIG. 7, the control circuit of the pachinko game machine to which the above protection circuit is applied includes a plurality of control circuit sections (accessories control circuit section 220, prize ball discharge control circuit section 220, prize ball discharge control circuit section 220, The device includes a circuit section 230, a firing device control circuit section 240, and a card reader control circuit section 250). and,
Normally, power supply circuits 220a, 230a, 240a, 250a installed in each of the four control circuit units are connected to a power supply unit 210 that receives voltage (24V) from the main power supply 3.
The rated voltage (24V) is supplied to the

In the control circuit of the pachinko game machine configured in this way, the power supply section 210 is supplied with a rated voltage (24
V) is applied, a desired power supply voltage is supplied from the power supply section 210 to each operation control circuit section, and each operation control circuit section that receives this supplies voltage to the gaming machine 1. Controls the operation of various installed operation control devices (for example, accessories, prize ball ejection device, firing solenoid, card reader, etc.).

On the other hand, if the staff member mistakenly inserts the power plug into another outlet (100V outlet) on the island equipment, a voltage exceeding the rated voltage is supplied to the power supply unit 210, and the power supply unit 210 Each control circuit section 2
A voltage higher than the rated voltage (24V) is applied to 20, 230, 240, and 250. At this time, the voltage supplied from the power supply section 210 is applied to the protection circuits 220b, 230b, 240b, 25 installed in each operation control circuit section.
0b prevents it from reaching the inside of these operation control circuits.

FIG. 8 is a circuit diagram showing an actual circuit configuration when the above-mentioned protection circuit is installed inside the control circuit. has been done. This accessory control circuit section 22
The protection circuit 220a incorporated in the 0 has terminals (connection holes) 221a, 221b, 222a, 2 provided in the middle of two voltage supply lines 221, 222 to separate them.
22b. And this protection circuit 220a
is a varistor 223 connecting points C and D of the two voltage supply lines 221 and 222, and a fuse interposed in the voltage supply line 221 on the side of the main power supply 3 from the point C to which the varistor 223 is connected. It consists of 224.

The protection circuit 220a having such a configuration is housed in a cartridge-type storage case (not shown) in a manner similar to that of the first embodiment, and the connection pins (not shown) provided in this case are connected to the terminals (connections). hole) 221a, 221b
, 222a, 222b, it is removably attached inside the accessory control circuit section 220.

[0046] Furthermore, the connection hole 2 of the accessory control circuit section 220
21a, 221b, 222a, 222b and the protection circuit 220a inserted therein are normally connected to the accessory control circuit section 22.
The protection circuit 220a is protected from being exposed to the outside by an accessory control device box (not shown) that covers the protection circuit 220a, and the protection circuit 220a is replaced with this box open. In addition, in configuring the protection circuits 220a to 250a of the second embodiment,
The varistors used in each circuit may all have the same characteristics, or they may have different characteristics so that the resistance value decreases at a predetermined voltage value suitable for each operation control circuit. You may also use

Reference numerals 225 to 228 in the figure are output terminals for transforming the rated voltage from the main power source 3 and supplying it to each control device. 226 is a terminal for outputting voltage to turn on the lamp; 226 is a terminal for outputting voltage to a driving member such as a solenoid that operates the accessory (variable winning device);
27 is a terminal for outputting a voltage to drive the driver;
228 is an input terminal for supplying a desired voltage inside the control circuit.

[0048]

Effects of the Invention As detailed above, claim 1 of the present invention
The control circuit of the gaming machine related to this includes one or more operation control circuit sections that electrically control the operation sections disposed in the gaming machine, and a voltage supply source that supplies driving power to these operation control circuit sections. a voltage monitoring circuit section interposed between the operation control circuit section and outputting a signal when the voltage supplied from the voltage supply source exceeds a predetermined value; and a signal from the voltage monitoring circuit section. This product is equipped with a voltage supply prohibition circuit that prohibits the supply of voltage from the voltage supply source to the operation control circuit based on the rated voltage. Even if you insert it into
An excellent effect can be obtained in that a voltage higher than the rated voltage is not applied to the operation control circuit section of the game machine, and furthermore, the operation device is not damaged. Further, the control circuit for a gaming machine according to claim 2 of the present invention includes one or more operation control circuit units that electrically control an operating unit disposed in the gaming machine, and a voltage supply source that is supplied from a voltage supply source. a voltage supply circuit section distributing voltage to the operation control circuit section, and supplying at least one of the one or more operation control circuit sections from a voltage supply source via the voltage supply circuit section. a voltage monitoring circuit unit that detects that the voltage has exceeded a predetermined value and outputs a signal; and a voltage supply prohibition circuit unit that prohibits the supply of voltage from the voltage supply source based on the signal from the voltage monitoring circuit unit. Since a protection circuit consisting of
Even if the product is accidentally plugged into an outlet with a voltage higher than the rated voltage, the operation control circuit in which the protection circuit described above is installed, as well as the actuation device controlled by the operation control circuit, may be destroyed. do not have. Further, in this case, the predetermined value can be determined for each operation control circuit section.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the internal configuration of a control circuit 2 and the connection state between the control circuit 2 and a main power source 3 according to a first embodiment.

FIG. 2 is a circuit diagram showing the internal configuration of the protection circuit 10.

[Figure 3] Power supply unit 1 equipped with protection circuit 10
FIG. 2 is a perspective view showing the overall configuration of 00.

FIG. 4: Storage unit 110 in which the protection circuit 10 is stored.
and a perspective view showing the cartridge 130 of the protection circuit.

FIG. 5 is a back view of the gaming machine showing the mounting position of the power supply unit 100.

FIG. 6 is a perspective view showing the front side of the gaming machine 1 to which this embodiment is applied.

FIG. 7 is a block diagram showing a connection state between a control circuit and a main power source of a gaming machine according to a second embodiment.

FIG. 8 is a circuit diagram showing the internal configuration of the accessory control circuit section.

[Explanation of symbols]

2 Control circuit 3 Main power supply (voltage supply source) 10, 220a, 230a, 240a, 250a Protection circuit 11 Voltage monitoring circuit section (voltage supply prohibition circuit section) 11a
, 223 Varistor 12a, 224 Fuse 12 Abnormality detection circuit section 20, 220 Accessory control circuit section (operation control circuit section) 3
0,230 Prize ball ejection control circuit (operation control circuit)
40,240 Launcher control circuit section (operation control circuit section) 50,250 Card reader control circuit section (operation control circuit section) 100 Power supply unit 110 Storage unit

Claims (3)

[Claims] 1. One or more operation control circuit sections that electrically control operation sections disposed in a game machine, a voltage supply source that supplies driving power to these operation control circuit sections, and the operation control circuit. a voltage monitoring circuit section that detects that the voltage supplied from the voltage supply source has exceeded a predetermined value and outputs a signal; 1. A control circuit for a gaming machine, comprising: a voltage supply prohibition circuit section that prohibits the supply of voltage from a supply source to an operation control circuit section. 2. One or more operation control circuit sections that electrically control an operation section disposed in a gaming machine, and a voltage supply circuit that distributes supply voltage from a voltage supply source to the operation control circuit sections. In the control circuit for a gaming machine comprising:
or a voltage monitoring circuit that detects that the supply voltage from the voltage supply source sent via the voltage supply circuit unit has exceeded a predetermined value and outputs a signal to at least one of the two or more operation control circuit units; 1. A control circuit for a gaming machine, characterized in that a protection circuit is provided, comprising a voltage supply prohibition circuit section that prohibits the supply of voltage from a voltage supply source based on a signal from the voltage monitoring circuit section. 3. The game according to claim 1, wherein the voltage monitoring circuit section includes a varistor whose resistance value rapidly decreases when a voltage equal to or higher than the predetermined value is applied. Machine control circuit.