JP2003033478A - Power supply device for game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power supply device which can be downsized, for a game machine. SOLUTION: This device uses commercial 100 V power supply as a input voltage and includes a step-down transformer 3 having a plurality of taps 11 to 14 with different turns of coils at a primary coil 18, and a switch 4, which can switch output voltage of the step-down transformer 3 to several levels by selecting a desired tap from taps 11 to 14, provided between an input terminal 2 and the taps 11 to 14 of the step-down transformer 3. This switch 4 is composed of a rotary switch, which enables conduction between any contact point at the coil 15a to 15d and the input contact point 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gaming machine power supply device for obtaining an operating power supply for a gaming machine such as a pachinko machine or a pachi-slot machine.

[0002]

2. Description of the Related Art When obtaining an operating power supply of a predetermined voltage (for example, 24V) for operating a gaming machine from a commercial power supply using a transformer, the input voltage is a specified voltage of the commercial power supply
The winding ratio of the primary winding and the secondary winding was determined on the assumption of 00V.

However, recent game machines have a control circuit including a CPU and the like, and are required to have high voltage accuracy. However, commercial power supplies have different power supply voltages depending on regions. For example, in areas with large factories and downtown areas nearby,
The power supply voltage tends to be lower than in non-existing areas. In addition, the power supply voltage tends to be higher in areas near the substation than in areas far away.

The voltage value of the operating power source also fluctuates due to the variation of the voltage value of the commercial power source. For example,
When the commercial power supply voltage is 100V, the operating power supply voltage is 2
In the transformer in which the winding ratio of the primary winding and the secondary winding is set to be 4V, the voltage value of the operating power supply drops to about 23V in the area where the commercial power supply is 95V. on the other hand,
In the area where the commercial power source is 107V, the voltage value of the operating power source is 26
It will be as high as V.

Therefore, there has been proposed a power supply device in which a plurality of taps are provided on the secondary winding and a tap outputting a predetermined voltage can be selected from the plurality of taps by a changeover switch.

[0006]

However, in the power supply device having a plurality of taps on the secondary winding, there is a problem that the contact capacitance of the changeover switch for switching the taps becomes large. That is, the transformer used in this type of gaming machine normally supplies power to a plurality of gaming machines at once. For this reason, a transformer having a large output of, for example, about 1 KVA is used. in this case,
The switch needs to have a contact capacity capable of passing a current of 41.7A.

When the contact capacity of the switch becomes large, the power supply device becomes large in size, which requires a wider installation space. However, since this type of gaming machine is attached to the island facility and the power supply device is arranged in the island facility, it is not preferable that the power supply device becomes large.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a small-sized power supply device for a gaming machine.

[0009]

In order to achieve the above-mentioned object, according to a first aspect of the present invention, a power source for a gaming machine is provided which supplies an operating power source for converting a commercial power source on the input side to operate a gaming machine. In the device, a commercial power supply is input to the primary winding through an input terminal, and a step-down transformer that outputs an operating power supply having a lower voltage than the commercial power supply from the secondary winding and a primary winding of the step-down transformer are wound. A plurality of taps provided with different numbers of lines and a switching means provided between the input terminal and the plurality of taps and capable of selecting one tap from the plurality of taps are provided. By the selection of
A power supply device for a gaming machine, characterized in that a voltage of an operation power supply output from a secondary winding can be switched in a plurality of stages.

According to a second aspect of the present invention, the switching means includes a winding side contact provided at each tip of the plurality of taps, an input side contact conducted to an input terminal, and the input side contact. And a grip portion provided, each winding side contact is arranged along an arc locus, and is constituted by a rotary switch capable of electrically connecting an arbitrary winding side contact and an input side contact by rotating the grip portion. The power supply device for a gaming machine according to claim 1, characterized in that.

According to a third aspect of the present invention, there is provided output voltage display means for displaying the voltage of the operating power source output from the secondary winding of the step-down transformer.
Alternatively, the power supply device for a gaming machine according to claim 2.

According to a fourth aspect of the present invention, a fuse is connected between the switching means and the input terminal, and a fuse state display portion is provided which emits light when the fuse is conductive and turns off when the fuse is blown. The power supply device for a gaming machine according to any one of claims 1 to 3.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. Here, FIG. 1 is a block diagram showing a configuration of a power supply device 1 for a gaming machine (hereinafter, referred to as a power supply device 1) to which the present invention is applied.

The power supply device 1 includes a pair of input terminals 2 (2a, 2b) to which a commercial power source is input, and a step-down transformer that converts the commercial power source into an operating power source for gaming machines having a voltage lower than the commercial power source. 3, a changeover switch 4 which is a kind of changeover means of the present invention, and a pair of output terminals 5 from which operating power is output.
(5a, 5b) and a voltage meter 6 for displaying the voltage value of the operating power source output from the step-down transformer 3.

The step-down transformer 3 includes an iron core 7 and the iron core 7
A primary winding 8 wound around the core and a secondary winding 9 wound around the core 7 and having both ends connected to the output terminals 5a and 5b and having a fixed number of turns. 24
It is converted to an operating power supply of V and output. Therefore, the conductor wire forming the primary winding 8 is thinner and easier to handle than the conductor wire forming the secondary winding 9. The number of turns of the primary winding 8 is larger than that of the secondary winding 9. In this embodiment, the output of the step-down transformer 3 is 1KVA.

In the primary winding 8 of this step-down transformer 3,
Provide multiple taps with different numbers of windings. In the present embodiment, the first tap 11, the first tap 11,
A second tap 12, a third tap 13, and a fourth tap 14 are provided. As a result, the primary winding 8 is connected to the first tap 1
The first block B1 between the first and second taps 12 and the second block
Second block B2 between tap 12 and third tap 13
And a third block B3 between the third tap 13 and the fourth tap 14, and a fourth block B4 between the fourth tap 14 and the other end of the primary winding 8. A winding side contact 15 (first winding side contact 15a to fourth winding side contact 15d) is provided at the tip of each tap 11-14. These winding side contacts 15 form a part of the changeover switch 4, and one selected winding side contact (15a to 15d) is electrically connected to one of the input terminals 2a. Here, the number of the primary side windings 8 is larger than that of the secondary side windings 9, and the conductive wire forming the primary side windings 8 is thinner and easier to handle than the conductive wire forming the secondary side windings 9. Therefore, the work of providing the taps 11 to 14 is easy, and the taps can be provided easily and with good workability. The other end of the primary winding 8 is connected to the other 2b of the input terminal 2.

The changeover switch 4 is composed of a rotary switch. The changeover switch 4 includes an input side contact 16 electrically connected to the input terminal 2a, a grip portion 17 provided with the input side contact 16, and the winding side contact 15 described above.
Have and. Then, the winding side contacts 15a to 15d are arranged along an arc locus, and by rotating the grip portion 17, an arbitrary winding side contact 15 and the input side contact 16 are brought into conduction. In this configuration, since the changeover switch 4 is provided on the primary side of the step-down transformer 3, the contact capacity can be reduced. In the present embodiment, since the power supply capacity of the power supply device 1 is 1 KVA, the contact capacity of the changeover switch 4 is 10 KVA.
A is enough. On the other hand, in the conventional configuration in which the changeover switch is provided on the secondary side of the step-down transformer, the contact capacity is 41.
It will be as large as 7A. Therefore, the changeover switch 4
Can be made smaller than the conventional one.

Then, the number of effective windings of the primary winding 8, that is, the number of windings involved in the generation of the magnetic field changes according to the tap selected by the changeover switch 4. That is, the first
When the winding side contact 15a and the input side contact 16 are electrically connected and the first tap 11 is selected, the first block B1 to the fourth block B4 of the primary side winding 8 constitute a closed circuit. In this case, each of the first block B1 to the fourth block B4 is activated, and the magnetic field can be generated. In addition, the second winding side contact 15b and the input side contact 16 are electrically connected to each other and the second
When the tap 12 is selected, the second block B2 to the fourth block B4 form a closed circuit. Similarly, the third winding side contact 15c and the input side contact 16 are electrically connected and the third tap 13
Is selected, the third block B3 and the fourth block B4 are selected.
Constitutes a closed circuit, and when the fourth winding side contact 15d and the input side contact 16 are conducted and the fourth tap 14 is selected, the closed circuit is constituted only by the fourth block B4.

Therefore, the turns ratio (N1 / N2) of the primary winding 8 (N1) and the secondary winding 9 (N2) changes according to the selected taps 11 to 14, and the first tap The case where 11 is selected is the largest, and the case where the fourth tap 14 is selected is the smallest. Further, in the present embodiment, this winding number ratio is set as follows. That is, the winding ratio when the first tap 11 is selected is the winding ratio from the secondary winding 9 to 2 when the commercial power supply of 100 V is input to the primary winding 8.
It is set to a value at which an operating power supply of 3V is output. Also,
The turn ratio when the second tap 12 is selected is 100V.
The operating power supply of 24V is set to a value that is output when the commercial power supply is input. Similarly, the turn ratio when the third tap 13 is selected is set to a value at which the operating power supply of 25V is output with respect to the commercial power supply of 100V, and the turn ratio when the fourth tap 14 is selected. , The operating power supply of 26V is set to the value output from the commercial power supply of 100V.

Further, a fuse 18 is attached between the input terminal 2a and the changeover switch 4, and a fuse state display section 19 for displaying a conductive state or a blown state of the fuse 18 is also provided. The fuse status display section 19 includes a resistor 20 and a light emitting diode 21 connected in series with the resistor 20. One end of the resistor 20 on the side opposite to the light emitting diode 21 is connected between the fuse 18 and the changeover switch 4, and the other end of the light emitting diode 21 on the side opposite to the resistor 20 is connected to the input terminal 2 and the primary winding. 8
Is connected to the other end of. In the fuse status display portion 19, the light emitting diode 21 emits light when the fuse 18 is conductive, and the light emitting diode 21 is extinguished when the fuse 18 is blown. Therefore, the state of the fuse 18 can be recognized based on the light emission or light extinction of the light emitting diode 21.

The above voltage meter 6 is a kind of output voltage display means of the present invention, and is connected in parallel with the secondary winding 9, that is, one end of the output terminal 5a and one end of the secondary winding 9. , And the other end is connected between the output terminal 5b and the other end of the secondary winding 9. The voltage meter 6 displays the voltage value of the operating power supply output from the output terminal 5. The voltage meter 6 may be of any type as long as it can display a voltage, but an illuminated voltage meter that illuminates the display unit is preferable. This is because the island facility in which the power supply device 1 is installed is narrow and dark, and the visibility of the display unit is improved by providing the illumination.

Next, the operation and operation of the power supply device 1 having the above configuration will be described.

In using the power supply device 1, first, commercial power is supplied to the input terminal 2. Here, if the fuse 18 is in the conductive state, the light emitting diode 21 of the fuse state display portion 19 emits light. On the other hand, when the fuse 18 is in the blown state, the light emitting diode 21 remains in the off state. Therefore, a clerk in the hall or the like can determine whether the fuse 18 is conductive or blown by checking the light emitting state of the light emitting diode 21 when the power is turned on. Then, when the fuse 18 has been blown, the clerk or the like performs a process such as replacement of the fuse 18. Since the island equipment in which the power supply device 1 is installed is dark and narrow, it is troublesome to directly visually check the state of the fuse 18. With respect to this point, in the fuse status display section 19, the light emitting status of the light emitting diode 21 indicates the status of the fuse 18, so that the status of the fuse 18 can be visually recognized at a glance even in the island facility, and the workability is excellent. .

If commercial power is input to the input terminal 2,
A store clerk or the like operates the changeover switch 4 so that the operating power source of a predetermined voltage is output from the output terminal 5. For example, when the input voltage is 100V, the operating power supply of 24V can be output by selecting the second tap 12. If the input voltage is 95V, the third
By selecting tap 13, approximately 24V (23.7
It is possible to output an operating power supply of 5 V). When the input voltage is 105V, the operating power supply of about 24V (24.15V) can be output by selecting the first tap 11.

At this time, the store clerk or the like can operate the changeover switch 4 while checking the output voltage by the voltage meter 6, so that the operating power of a desired voltage can be supplied to the gaming machine regardless of variations in the input voltage.

In the power supply device 1 having the above structure, the output voltage of the step-down transformer 3 is set to the desired voltage by changing the effective number of turns of the primary winding 8 of the step-down transformer 3. The contact capacity of the changeover switch 4 for setting the effective number of turns of the side winding 8 can be reduced.
Therefore, the power supply device 1 can be downsized and can be easily installed even in a narrow installation space such as in an island facility. Further, since the contact capacity of the changeover switch 4 is reduced, the life of the changeover switch 4 is extended and maintenance is easy and simple.

Further, since the operating power supply of the gaming machine is, for example, 24 V, which is lower than the voltage value of the commercial power supply, the number of turns of the coil in the step-down transformer 3 is larger on the primary side than on the secondary side. Become. Therefore, a plurality of taps can be provided easily and accurately.

Further, even if the voltage value of the operating power supply differs for each model of the game machine, this power supply device 1 can easily cope with it. For example, when the optimum operating power supply of the game machine A of a certain manufacturer is 24V, the optimum operation power supply of the game machine B of another manufacturer is 25V, and 100V is input as the commercial power supply, the game machine A operates. Power supply device 1 for supplying power
Then, the second tap 12 is selected by the changeover switch 4, and in the power supply device 1 that supplies the operating power to the gaming machine B, the third tap 13 is selected by the changeover switch 4. As a result, it is possible to supply an operating power source close to the optimum voltage to each of the gaming machines A and B.

By the way, the present invention is not limited to the above-mentioned embodiment, but various modifications can be made based on the description of the claims.

For example, in the above-described embodiment, the power supply device 1 capable of changing the voltage value of the operating power supply to be output in four steps at intervals of 1 V has been described, but the present invention is not limited to this configuration. For example, the output voltage may be changed in five steps or more, and the change amount of the voltage may be changed at another interval, for example, 0.5.
The interval may be V or 2V.

Further, although the rotary switch is illustrated as the changeover switch 4, it is not limited to the rotary switch as long as an arbitrary tap can be selected. For example, it may be a slide switch.

[0032]

As described above, according to the present invention, the output voltage of the step-down transformer is set to the desired voltage by changing the number of windings of the primary side winding of the step-down transformer. The contact capacity of the switching means for switching the number of windings can be reduced. Therefore, the power supply device can be downsized and can be installed even in a narrow installation space such as an island facility. Further, since the contact capacity of the switching means is reduced, the life is extended and maintenance is easy and simple.

Further, since the number of windings is larger than that of the secondary winding and the tap is provided on the primary winding which has a small wire diameter and is easy to handle, the work for providing the tap is easy, simple and A tap can be provided with good workability.

When the output voltage display means for displaying the output voltage of the step-down transformer is provided, the output voltage can be visually checked,
Since the output voltage can be adjusted while checking, workability is excellent.

Further, when the fuse status display portion is provided which emits light when the fuse is in a conductive state and turns off when the fuse is in a blown state, it is easy to visually check the state of the fuse, which is troublesome.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a power supply device for a gaming machine.

[Explanation of symbols]

1 Power supply device for gaming machines 2 input terminals 3 step-down transformer 4 Changeover switch 5 output terminals 6 voltage meter 7 iron core 8 primary winding 9 Secondary winding 11 First tap 12 Second tap 13 Third tap 14th tap 15 Winding side contact 16 Input contacts 17 Handle 18 fuse 19 Fuse status display 20 light emitting diode

Claims (4)

[Claims] 1. A power supply device for a gaming machine, which supplies an operating power for operating a game machine by converting a commercial power supply on the input side, wherein the commercial power is input to a primary side winding through an input terminal, Also a step-down transformer that outputs a low-voltage operating power supply from the secondary winding, a plurality of taps provided on the primary winding of the step-down transformer with different numbers of windings, the input terminal and a plurality of taps. And a switching means capable of selecting one tap from a plurality of taps, and the tap of the switching means selects the operating power supply voltage output from the secondary winding in a plurality of stages. A power supply device for a gaming machine, which is configured to be switchable to. 2. The switching means comprises a winding side contact provided at each tip of the plurality of taps, an input side contact conducted to an input terminal, and a grip portion provided with the input side contact. And having each winding side contact arranged along an arc locus,
The power supply device for a gaming machine according to claim 1, wherein the power supply device for a gaming machine is configured by a rotary switch capable of electrically connecting an arbitrary winding side contact and an input side contact by rotating a grip portion. 3. The gaming machine according to claim 1, further comprising output voltage display means for displaying the voltage of the operating power source output from the secondary winding of the step-down transformer. Power supply. 4. A fuse state indicator is provided between the switching means and the input terminal, and a fuse state indicator is provided which emits light when the fuse is in a conductive state and turns off when the fuse is in a blown state.
4. The power supply device for a gaming machine according to claim 3.