JPH0639340Y2 - Sensor clip - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (i) Industrial field of application The present invention relates to a sensor clip for electromagnetically connecting to a coated conductor in a current detection device that detects the current-carrying state of the coated conductor without removing the coating material.

(B) Conventional technology Current can be easily measured by simply touching the test bar of the tester to the conductor. However, in pachinko playgrounds, in order to grasp the number of prize-winning balls and the number of calls to each amusement machine, such as the number of awards, even if an attempt is made to monitor the number of times the lamps that notify them are lit using current detection means, It is forbidden to electrically connect other circuits to this circuit. Therefore, it is impossible to branch the circuit of the game machine and take out the current. Therefore, the lighting of the lamp can be detected by the photo sensor, and the status of the game machine can be grasped from the detection signal, but many lamps such as lighting and decorations blink repeatedly in the store, and the photo sensor lights the lamp. If it is detected, it is likely to malfunction due to the influence of other lamps. Therefore, it is possible to apply the theory of a clamp meter and electromagnetically connect to a conductive wire via a sensor clip to detect the presence or absence of energization.

C. Problems to be solved by the device Although the theory of the clamp meter has the merit of being able to detect the current without damaging the covering material, the conventional sensor clip mainly confirms the presence or absence of electricity in each conductor. Since it is the purpose, the influence on the peripheral devices is ignored, and the structure has an operability-oriented structure suitable for frequent attachment and detachment. Therefore, it is unsuitable for monitoring the energized state while being installed in the pachinko game machine.

The present invention is a small-sized sensor clip that can easily and surely clamp a covered conductive wire, can be installed and stored in a pachinko game machine inconspicuously, and has no influence on peripheral devices. , Its construction is inside a housing with one side open,
The search coil is housed so that the iron core is parallel to the opening surface, and the tip of the conductive plate brought into contact with one side of the iron core is made to face the opening, and the other side of the iron core is also made of the same iron core. Provided with a conductive slide plate that comes into contact with the conductive plate and is slidable in the direction orthogonal to the opening surface in parallel with the conductive plate, the tip of the slide plate is bent in a hook shape toward the fixed plate side, and slides by sliding the slide plate. The purpose is to form a covered wire between the plate and the search coil so that it can be clamped.

E action Pull out the slide plate to the outside of the housing, hook the conductive wire to the hook at the tip of the slide plate, pull the slide plate toward the housing side and sandwich the covered conductor between the slide plate and the search coil. Is securely clamped.

Embodiment An embodiment of the sensor clip according to the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a synthetic resin housing in which one side is open and a cord lead-out hole is formed in the other side. Inside the housing 1, a search coil 2 is arranged so that an iron core 2a is parallel to the opening surface. A conductive plate 3 which is housed and whose front end faces the opening is provided with its end in contact with one end of the iron core 2a, and on the other side of the iron core 2a, the conductive plate 3 is provided. Board 3
In parallel with this, a conductive slide plate 4 whose tip is bent in a hook shape toward the conductive plate side by 90 degrees is provided slidably in a direction orthogonal to the opening surface.

The lead wire 5 connected to the search coil 2 is connected to the signal processor shown in the block diagram of FIG.
The signal processor comprises an amplifier circuit 6, a judgment circuit 7, a smoothing circuit 8, a Schmitt circuit 9 and an output circuit 10.

The sensor clip formed in this way first pulls out the slide plate 4 from the housing 1 and then slides the slide plate 4 to the covered conductor 11 for supplying power to a desired lamp, for example, a jackpot lamp for notifying a prize or a calling lamp for calling a clerk. By pulling the slide plate 4 toward the housing 1 side so that the covered conductor 11 is sandwiched between the bent portion 4a of the slide plate 4 and the housing 1 and bringing the tip of the bent portion 4a of the slide plate 4 into contact with the tip of the conductive plate 3, surely. Make it clamp. As a result, a loop of magnetic material is formed around the conductive wire 11 in the clamp portion. When a current flows through the coated conductor 11, a magnetic field is generated in the loop of the magnetic material, which acts as a current detection circuit, and a slight current flows through the search coil 2. The minute current is sent as a voltage change to the electronic circuit via the lead wire 5. In the electronic circuit, the amplified voltage level is amplified by the amplifier circuit 6, the amplified voltage level is judged by the judgment circuit 7, smoothed by the smoothing circuit 8, further digitized by the Schmidt circuit 9, and the information is outputted through the output circuit 10. Send to a computer (not shown). If the computer analyzes the energization frequency based on the signal, the operating status of each game machine can be accurately grasped.

Note that the electronic circuits and computer processing shown in the above embodiments are merely examples, and the data processing method by computer and the purpose of use are also free.

Advantageous Effects According to the present invention, in the pachinko industry where it is prohibited to directly connect to a conductive wire, it is possible to take out signals without contact, which may affect other electronic devices to each of the complicated pachinko machines. The actual benefit is enormous because it can be installed securely without affecting.

[Brief description of drawings]

The drawing shows the sensor clip according to the present invention,
1 is a perspective view, FIG. 2 is a sectional view, FIG. 3 is a perspective view showing a clamped state, and FIG. 4 is a block diagram of a signal processor. 1 ... Housing, 2 ... Search coil, 2a ... Iron core,
3 ... Conductive plate, 4 ... Slide plate, 4a ... Bent portion, 5 ...
… Lead wire, 6 …… Amplifier circuit, 7 …… Judgment circuit, 8 ……
Smoothing circuit, 9 …… Schmidt circuit, 10 …… Output circuit, 11
...... Coated conductor,

Claims (1)

[Scope of utility model registration request] 1. A search coil is housed in a housing having an opening on one side so that an iron core is parallel to the opening surface of the search coil.
The tip of the conductive plate, which is in contact with one side of the iron core, is made to face the opening, and the other side of the iron core is also brought into contact with the iron core so that it can slide in the direction orthogonal to the opening surface in parallel with the conductive plate. A conductive slide plate is provided, the tip of the slide plate is bent toward the conductive plate side in a hook shape, and the covered conductor can be clamped between the slide plate and the search coil by sliding operation of the slide plate. Sensor clip.