JP2566323Y2 - Simple power supply tester for pachinko machines - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple tester for checking the power supply voltage of an indoor wiring outlet into which a pachinko machine plug is inserted.

[0002]

2. Description of the Related Art FIG. 5 is a front view showing a state in which a large number of pachinko machines are installed on an island stand. Many pachinko machines 90 are installed on the island stand 92, and the island stand 9 on the back side of the pachinko machine 90 is provided.
2 has a number of outlets (not shown).
In these outlets, AC 24V and AC 100V are mixed. This means that the power of the pachinko machine 90 is
This is because the power of the abnormality display lamp 94 above the island stand 92 is 100 V AC, for example, while the power is 4 V. The structure of the outlet is 24V AC and 100V AC
Is exactly the same.

[0003]

[Problems to be Solved by the Invention] By the way, although a piece of paper marked "24V" is affixed to the plug of the pachinko machine, there have been many accidents in which the plug is accidentally inserted into a 100V outlet. I have. If the plug of the pachinko machine is plugged into a 100 V outlet, the fuse is blown inside the pachinko machine and the IC mounted on the printed wiring board is destroyed, so the fuse and the printed wiring board must be replaced. . In addition, to measure the outlet voltage with a general electric tester, set the AC voltage among many measurement functions,
Measurement is performed while plugging the two probes into the outlet. Therefore, without some electrical knowledge,
In addition to being unable to measure the correct voltage, for example, measuring the current with the current measurement function may blow the fuse of the electric tester, or short-circuit the two probes to activate the safety breaker, causing a temporary power failure. And other accidents. further,
The measurement with the electric tester requires inserting both probes into the outlet with one hand and holding the electric tester with the other hand, which is a very troublesome operation because both hands are required. The present invention was conceived in view of such circumstances, and a simple pachinko machine power supply tester capable of easily preventing a pachinko machine from being damaged by accidentally inserting a plug into a 100 V outlet. (Less than,
(Referred to simply as "tester").

According to a first aspect of the present invention, there is provided a plug having a pair of blades inserted into an outlet of a power supply, and an AC voltage electrically connected between both blades of the plug and applied to the plug. And a normal voltage notification unit that operates when the AC voltage applied to the plug is approximately 24 V.

According to a second aspect of the present invention, the normal voltage notifying unit is electrically connected between both blades of the plug, and operates when the AC voltage applied to the plug is approximately 100 V. Is electrically connected between the two blades of the plug via the contacts which are opened by the operation of the relay,
And a notification member that operates when the AC voltage applied to the plug is approximately 24 V.

[0006]

[0007]

The operation of the tester according to the first aspect is as follows. Insert the plug into the power outlet with one hand. When the power source is 100 V AC, the high voltage notification unit operates and the normal voltage notification unit does not operate. On the other hand, when the power supply is 24 V AC, the normal voltage notification unit operates and the high voltage notification unit does not operate.

[0008]

The operation of the tester according to the second aspect is as follows. Insert the plug into the power outlet with one hand.
When the power source is 24 V AC, the relay does not operate and the contacts remain closed. Therefore, an AC voltage of 24 V is applied to the notification member, and the notification member operates. Power supply is 100
In the case of V, the relay operates and the contact opens. Therefore, the AC voltage of 100 V is not applied to the notification member, and the notification member does not operate.

[0010]

FIG. 1 is an electric circuit diagram showing an embodiment of the tester according to the present invention. Hereinafter, a tester 10 described with reference to this drawing is electrically connected between a plug 12 having blades 12a and 12b inserted into a power outlet (not shown), and blades 12a and 12b of the plug 12. It is provided with a neon tube 14 as a high voltage notification unit that operates when the AC voltage applied to the plug 12 is approximately 100V. The neon tube 14 is used for 100V, and the discharge starting voltage is 80 to 90V.

FIG. 2 is an electric circuit diagram showing an embodiment of the tester according to the second and third aspects. Hereinafter, description will be made based on this drawing. The tester 20 includes a plug 1 having blades 12a and 12b inserted into a power outlet (not shown).
2 and a normal voltage notification unit 22 that is electrically connected between the blades 12a and 12b of the plug 12 and that operates when the AC voltage applied to the plug 12 is approximately 24V. Also, the normal voltage notification unit 22
A relay 24 electrically connected between the blades 12a and 12b of the plug 12 and operating when the AC voltage applied to the plug 12 is approximately 100 V, and the blades 12a and 12b of the plug 12
And a notification member 26, which is electrically connected via a contact 24b opened by the operation of the relay 24 and operates when the AC voltage applied to the plug 12 is approximately 24V. . The notification member 26 includes the light emitting diode 3
0, a current limiting resistor 32 and a rectifying diode 34 for reverse voltage protection are connected in series.
Further, a varistor 36 as an overvoltage protection element that is connected in parallel to the notification member 26 and operates when an overvoltage is applied to the notification member 26 may be provided. Varistor 36
Is 34V because the maximum value of AC 24V is about 34V.
The one that works above is used.

3 and 4 show an embodiment in which the tester according to claim 1 and the tester according to claims 2 and 3 are combined, FIG. 3 is an electric circuit diagram, and FIG. 4 is an external perspective view showing a use state. FIG. Hereinafter, a detailed description will be given based on these drawings. However, the same parts as those in FIG. 1 or FIG. The tester 40 includes a power outlet 42.
Plug 12 with blades 12a, 12b inserted into
Is electrically connected between the blades 12a and 12b of the plug 12 and the AC voltage applied to the plug 12 is substantially 1
It is electrically connected between the neon tube 14 as a high voltage notification unit that operates in the case of 00V and the blades 12a and 12b of the plug 12, and operates when the AC voltage applied to the plug 12 is approximately 24V. And a normal voltage notification unit 22.

Next, the operation of the tester 40 will be described with reference to FIGS. 3, 4, and 5. The front frame 44 of the pachinko machine 90 installed on the island stand 92 is opened, and the plug 12 is inserted into the power outlet 42. If the power supply is 24V AC,
The relay 24 does not operate and the contact 24b remains closed.
Therefore, 24 V AC is applied to the light emitting diode 30, and the light emitting diode 30 is turned on to indicate that the voltage is normal. Accordingly, the plug 46 of the pachinko machine 90 is
Is inserted into the outlet 42, the pachinko machine 90 operates. When the power supply is 100 V AC, the neon tube 14
Lights up to indicate that the voltage is high, the relay 24 operates to open the contact 24b, and the light emitting diode 3
This prevents 100 V AC from being applied to zero. Thus, the lighting of the neon tube 14 and the non-lighting of the light emitting diode 30 make it possible to know that the power supply is at 100 V AC, thereby preventing the plug 16 of the pachinko machine 90 from being erroneously inserted into the outlet 42. . Further, even if a voltage of AC 24 V or more is applied between the time when AC 100 V is applied to the plug 12 and the time when the contact 24 b is opened, the light-emitting diode 30 does not exceed the predetermined voltage due to the operation of the varistor 36.

In these embodiments, an electromagnetic relay is shown as the relay 24, but a sealed contact relay, a solid state relay, or the like may be used. In addition, the high voltage notification unit or the normal voltage notification unit includes the neon tube 14 or the light emitting diode 30.
Is not limited to tungsten lamps, EL
It may be an element, a buzzer, a speaker, an actuator, or the like. Furthermore, the overvoltage protection element is not limited to the varistor 36, and may be a gas-filled discharge tube, a Zener diode, a bidirectional two-terminal thyristor, or the like.

[0015]

[Effects of the Invention] As described above, according to the tester of the present invention, it is possible to know whether the power supply is 24 V AC or 100 V AC by simply plugging the plug into the outlet of the power supply. Anyone can easily prevent accidental insertion into an AC 100V outlet, and damage to the pachinko machine can be prevented.

[Brief description of the drawings]

FIG. 1 is an electric circuit diagram showing an embodiment of the tester according to claim 1.

FIG. 2 is an electric circuit diagram showing an embodiment of the tester according to claim 2;

FIG. 3 is an electric circuit diagram showing an embodiment in which the tester according to claim 1 and the tester according to claims 2 and 3 are combined.

FIG. 4 is an external perspective view showing a use state of an embodiment in which the tester according to claim 1 and the tester according to claims 2 and 3 are combined.

FIG. 5 is a front view showing a state where a number of pachinko machines are installed on the island stand.

[Explanation of symbols]

10, 20, 40: Tester 12: Plug 12a, 12b: Plug blade 14: Neon tube (high voltage notification unit) 22: Normal voltage notification unit 24: Relay 24b: Relay contact 26: Notification member

Claims (2)

(57) [Scope of request for utility model registration] 1. A plug having a pair of blades inserted into an outlet of a power supply, and electrically connected between both blades of the plug, wherein an AC voltage applied to the plug is approximately 100V. A simple power supply tester for a pachinko machine, comprising: a high voltage notification unit that operates; and a normal voltage notification unit that operates when the AC voltage applied to the plug is approximately 24 V. 2. The normal voltage notifying section is electrically connected between both blades of the plug, and operates when an AC voltage applied to the plug is approximately 100 V. 2. The pachinko machine according to claim 1, further comprising: a notification member that is electrically connected between both blades through a contact that opens by the operation of the relay and that operates when an AC voltage applied to the plug is approximately 24V. Simple tester for power supply.