SU1059603A1 - Device for checking correctness of procedure for assembling electric circuit - Google Patents

Abstract

1. A DEVICE FOR MONITORING THE CORRECTNESS OF ASSEMBLY OF ELECTRIC CIRCUITS, containing a dielectric keyed field with contact sockets and a set of electrical circuit elements, characterized in that, in order to increase the efficiency of control by automating the process, it contains a multi-pole two-position switch, switch, and error sensor, at the same time, each of the sockets of the field is connected to the corresponding moving contact of one of the switch groups, the first of the same contacts of which are connected to There are current pins of electrical components, and the second through the switch to the corresponding input of the error sensor. 2. A device according to claim 1, characterized in that the error sensor comprises a step-down transformer with a secondary multi-section winding, a switch-on button, a relay, signal elements and a series-connected rectifying bridge and a smoothing filter consisting of resistors and capacitors, the winding the relay is through a rectifying bridge and a smoothing filter connected to one of the sections of the secondary winding of the transformer, the closing contact (L relay bypasses the power button, and the soaking contacts are connected to the signal element , The remaining section of the transformer secondary winding connected to inputs of the sensor-side oshi-2.

Description

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The invention relates to devices for the demonstration of experiments in electrical or magnetism, and can be used in controlling the correctness of the electrical circuit.

A device for controlling the correctness of the assembly of electrical circuits is known, which contains a dielectric keyed field with contact sockets and a set of electrical circuit elements 1 /

A disadvantage of the known device is that it does not control the correctness of the connections, which significantly reduces the effectiveness of the control.

The purpose of the invention is to increase the efficiency of control by automating the process.

This goal is achieved by the fact that the device contains a multi-pole two-position switch, a commutator and an error sensor, each of the jacks of the keyed floor is connected to the corresponding movable contact of one of the groups, the switch, the first of the same-name contacts of which are connected to the corresponding terminals of the electrical elements, and the second - through the switch to the corresponding input of the error sensor.

In addition to this, the error sensor contains a step-down transformer with a secondary multisection winding, a turn-on button, a relay, signal elements and a series-connected rectifier bridge and a smoothing filter consisting of resistors and capacitors, the relay winding through the rectifier bridge and the smoothing filter connected to one: one of the sections of the secondary winding of the transformer, the closing contact of the relay plays the on button, and the opening contacts are connected to the signal elements, and the remaining sections are secondary of the transformer are connected to inputs of the error sensor.

FIG. 1 shows the wiring diagram of the elements of the device in FIG. 2 — an example of a realizable circuit; in fig. 3 - schematic diagram of the error sensor.

The device contains a dielectric dial-up field 1, a set of electrical elements 2 circuit, a multi-pole two-position switch 3, the switch 4 and the sensor 5 errors. The nanoe field 1 contains digitized contacts of socket b, the indices of which coincide with the indices of conclusions 7, the set of electrical elements 2 of the circuit. Nests b; through the movable contacts 8 of the switch 3 and one of the contacts are connected to the terminals 7 of the set of elements 2, and through the other contacts 10 are connected via the terminals 11 of the switch

ra 4k input terminals 12 sensor 5 errors,

The error sensor 5 contains a toggle switch 13 for connection to the network of a transformer 14, the secondary winding 15 of which is multi-sectional, and its terminals are connected to the input terminals 12. A winding of the relay 18 is connected to one of its sections via a rectifying bridge 16 D1-D4 and a smoothing filter 17 K, one of the contacts of which shunts the button 19 of turning on Sla, Sl6, and the others include signal elements 20 Hi (lamp) and a bell 21 H2

The resistor 22 Rl is designed to adjust the operation voltage of the 18k cell, the lamp 23-NC is used to signal the activation of the sensor 5 errors.

The device works as follows.

The teacher gives the student a variant of the electrical circuit (Fig. 2). The student places the switch 3 to the position Assembly of the circuit and connects all the sockets of the dialed field 1 through the switch 3 and the switch 4 to the sensor inputs 5 errors. At the same time, the internal circuits of the switch are connected in such a way that, if the sockets of the dial-up field 1 are incorrectly connected, one of the secondary windings of the transformer 15 is short-circuited. This leads to the voltage removed from the taps D and; The downstream rectifier bridge 16 smoothed by the filter and fed to the winding of the relay 18 is somewhat reduced. In this case, the current in the winding of the relay 18 with the help of the resistor 22 R1 is chosen close to the release current.

When the voltage decreases, the current in the winding-relay 18 falls below the permissible limit and the core is released.

In this case, the contacts K1 and K2 include the lamp 20 and the bell 21, the contacts of the short-circuit de-energize the primary winding of the transformer and the NZ-lamp goes out.

After eliminating an erroneous connection on the dial pad 1, pressing the buttons 19 of the short-circuit relay and the resistor R2 to operate the relay 18, if the error is not eliminated, the lamp 23 does not turn on, because the relay does not operate.

After completion of the assembly and the final check, the switch 3 is switched to the Operation position and all the slots 6 of the modular floor 1 are connected to the terminals 7 of the set of elements 2 and all necessary measurements are taken.

The application of the invention completely eliminates errors when assembling the circuits, which increases the high safety of the elements and frees the teacher from the need for inspections, creating conditions for the independent work of students

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Claims (2)

1. DEVICE FOR CONTROLLING THE CORRECTNESS OF THE ASSEMBLY OF ELECTRIC CIRCUITS, comprising a dielectric typesetting field with contact sockets and a set of electrical circuit elements, characterized in that, in order to increase the control efficiency due to the automation of the process, it contains a multi-pole two-position switch, a switch, and an error sensor, in this case, each of the nests of the dialed field is connected to the corresponding movable contact • of one of the groups of the switch, the first of the same contacts of which are connected to the corresponding uyuschim conclusions electrical components, and the latter - through the switch to the corresponding input of the error sensor. 2. The device according to π. 1, characterized in that the error sensor contains a step-down transformer with a secondary multi-sectional winding, a power button, a relay, signal elements and a rectifier bridge and a smoothing filter in series consisting of resistors and capacitors, while the relay winding is connected through a rectifier bridge and a smoothing filter to one of the sections of the secondary winding of the transformer, the make contact of the relay bypasses the power button, and the make contacts are connected to the signal elements, the remaining sections toric transformer winding connected to inputs datchikaoshi side. . SU ,, 1059603 H I