SU1626214A1 - Device for testing electrical connections - Google Patents

Abstract

The invention relates to a measuring and control technique and is intended to control inter-socket and intra-socket wiring of electrical connections. The purpose of the invention is to expand the scope. The goal is achieved by introducing delay element 5, first 6 and second 14 match elements, block 11 of block, keyboard 17, first 18 and second 19 subtractors, first 20 and second 21 multiplexers, first 24 and second 25 slot number indicators. 1 il.

Description

The invention relates to measuring technique and can be used to control the inter-connector and intra-connector installation of electrical connections of blocks, cabinets, cores of connecting cables, harnesses.

The purpose of the invention is the expansion of the scope.

The drawing shows a structural diagram of a device for monitoring the installation of electrical connections.

The device comprises a pulse generator 1, a key 2, a first 3 and a second 4 counters, a delay element 5, a first match element 6, a first start terminal 7, a first 8 and a second 9 switches, a resistor 10, a match unit 11, a first driver 12, a second terminal Continue 13, second match element 14, second shaper 15, trigger 16, keyboard 17, first 18 and second 19 subtracters, first 20 and second 21 multiplexers, first 22 and second 23 decoders, first 24 and second 25 connector number indicators, first 26 and second 27 contact number indicators, third terminal 28, p connecting block 29 with the tested electrical connector 30, indicator End of monitoring (LED) 31.

The first and second inputs of the key 2 are connected to the output of the trigger 16 and to the output of the pulse generator 1, respectively, the output of the key 2 is connected to the first input of the first counter 3, the output of which is connected to the first input of the second counter 4. The bit outputs of the first 3 and second 4 counters are connected to bit inputs of the second 9 and first 8 switches, respectively. The outputs of the first 22 and second 23 decoders are connected to the input of the first 26 and second 27 contact number indicators. The output of the first 12 and second 15 formers are connected respectively to the clock input and the input input of the trigger reset 16. The information outputs of the first 8 and second 9 switches are connected to the corresponding terminals of the connecting block 29, the input of the first 8 switch is connected to the third terminal 28, the first terminal 7 is connected with the second input of the second counter 4. The output of the keyboard 17 is connected to the third input of the second counter 4, the second output of the keyboard 17 is connected to the first input of the first 18 and second 19 subtracters, the second input of each of which is connected n respectively to the discharge outlet of the second counter 4, a first input of a multiplexer 20. A second input of the first counter 3 and a bit output of the first counter 3, a first input of the coincidence unit 11, the first input of the second multiplexer 21, respectively. The first output of the first 18 and second 19 subtractors is connected to the control input of the first multiplexer 20 and to the input of the first connector number indicator 24, to the control input of the second multiplexer 21 and to the input of the second connector number indicator 25, respectively. The outputs of the first 20 and second 21 multiplexers are connected to the inputs of the first 22 and second 23 decoders, respectively. The first terminal 7 is connected to the second input of the delay element 5, the output of which is connected to the third input of the first counter 3, the output of which is connected to the first input of the delay element 5 and to the first input of the first coincidence element 6, the second input of which is connected to the output of the first counter 4. Output the first match element 6 is connected to the input of the End of control indicator 31 and to the third input of the key 2. The second input of the match block 11 is connected to the discharge output of the second counter 4, the output of the match block 11 is connected to the first input of the second element 14 coincidence, the output of which is connected to the input of the second shaper 15. The second terminal 13 is connected to the second input of the second element 14 matches. The output of the second switch 9 is connected to the input of the first driver 12 and through the resistor 10 with a common bus device. The second outputs of the first 18 and second 19 subtractors are connected to the second inputs of the first 20 and second 21 multiplexers, respectively.

The device operates as follows.

On the keyboard 17 set the code. corresponding to the number of contacts in the first connector 32 of the electrical connector 30, this code is fed to the second group of outputs 33 to the keyboard 17. and also set the code corresponding to the total number of contacts in the first 32 and second 34 connectors of the electrical connector 30. This code goes to the first group of outputs 35 of the keyboard 17. After applying the start pulse to terminal 7, the information installed on the first group of outputs of the keyboard 17 is recorded in the counter 4 and appears on its bit outputs. The start pulse also arrives at the second input 36 of the delay element 5, delayed by the time required to set the information on the discharge outputs of the counter 4. The start pulse arrives at the third input (write input) of the counter 3. Information from the discharge outputs of the counter 4 is recorded in counter 3. At the outputs of counters 3 and 4 mouth

626214, the waveforms of the signals are piled in, which form at the output of the element 3 matches (for example, the element of matches by zeros 2 OR), a signal allowing work '/ key 2 (for example, the element of coincidence of units 3 AND-NOT) at its three input.

The same codes at the bit outputs of the counters 3 and 4 cause a change in the state at the output of the code matching block 11, which in turn leads to a mismatch of the signals at the inputs of the second matching element 14 (for example, the matching element in units of 2 AND-NOT), which is its output signal through the former 15 resets the trigger 13. At the same time, from the voltage drop at the output of the second coincidence element 4, the former 15 forms the reset pulse of the trigger 16. The output signal of the trigger allows the key 2 to work on its first input. The pulse from the output of generator 1 is supplied to the second input of key 2. When the logical • states of the input signals of key d coincide, a pulse arises at its output, changing the state of counter 3 by one (for example, minus one). At the information outputs of the control of the first switch 8, the code for the 'bit outputs of the second counter 4 is set. And at the information outputs of the control of the second switch 9, the code is one less than the code from the outputs of the first counter 3. Switch 8' delivers a logic level from its terminal 28 “G” through the connecting block 22 to the pin number 34 of the connector (according to the scheme on the first on the right) followed by it (in the direction of decreasing number), the contact of the connector 34 (on the scheme of the second on the right) by the switch 9 is connected to its output. Since there is no connection between the contacts, the output of the switch has a low signal level, which is provided by the resistor 10, and the state of the trigger 16 does not change. A counter pulse of generator 1 is fed to the input of counter 3 through a key 2. The code on the discharge outputs of counter 3 will decrease by one, and switch 9 will connect the next (according to the scheme the third from the right) pin of connector 34 to its output. Between the connected contacts of the connector 34 (the first on the right and the third on the right) there is a circuit, and logical 1 from terminal 28 through the first switch 8. through the circuit in the connector 34, through the switch 9 will go to the input of the shaper 12. The shaper 12 generates a pulse from the logical voltage drop, changing the state at the output of trigger 16, for example, from logical ”1 to logical 0, which, entering the input of key 2, prohibits the passage of pulses from generator 1 to the input of counter 3. The monitoring process stops.

Codes from the discharge outputs of counters 3 and 4 are fed to the inputs of the decreasing subtractors 18 and 19 (second inputs), respectively. Subtractors 18 and 19 from the code at the inputs of the minuscule subtract the code corresponding to the number of contacts of the first connector 32. received on the second group of outputs 33 from the keyboard 17. If the difference of these codes is positive (no overflow), then the signal inputs to the control of multiplexers 20 and 21 no overflow and multiplexers 20 and 21 will connect to the inputs of the decoders 22 and 23, respectively, the difference codes that correspond to the contact numbers of the second connector 34. Codes from the outputs of the decoders 22 and 23 will go to the inputs of the indicators 26 and 27 contact numbers. Each contact number indicator has its own connector number indicator, to which this contact number belongs, so indicator 26 has its own connector number indicator 24, and indicator 27 has its own connector number indicator 25. The signals from the overflow outputs of the subtractors 18 and 19 will be sent to the inputs of the indicators 24 and 25 connector numbers respectively. On the 24 or 25 indicator of the connector number, number 2 is lit if there is no overflow, and 1 ”if there is. If the difference of the codes received at the inputs of the subtractor 18 or 19 is negative. then there is an overflow, and the overflow signal, having entered the control input of the multiplexer 20 or 21, will directly connect the code of the reduced code that corresponds to the contact number of the first connector 32 to the decoder 22 or 23 input. Such signal generation of the indicators allows you to directly indicate the pin numbers and connector numbers of this circuit . If the contacts are from the same connector, then the connector number is the same on both indicators of the connector number.

To continue the monitoring process, a continuation pulse is applied to the second terminal 13, which, through the element 14 and the driver 15, resets the trigger 16, at the output of which a logic ”1 appears, allowing the pulses of the generator 1 to pass through the key 2 to the counter input

3. The output signal of the counter 3 is fed to the first input 37 of the delay element 5 and the first input of the counter 4, after which the counter 4 changes by one its state at the bit outputs. The signals from the bit outputs of the counter 4 are fed to the bit inputs of the counter 3, and the signal from the output 36 of the delay element 5 received at

Ί the recording entries of counter 3 are recorded in counter 3. The delay element 5 delays the propagation of the signal from its inputs to the output for the time necessary to set the information on the bit outputs of counter 5 of counter 4. Such inclusion of counters 3 and 4 and delay element 5 allows monitoring the installation of electrical connections according to the principle: each contact of connectors 32 and 34 is checked for the presence of 10 electrical circuits with each of the remaining contacts of connectors 32, 34 without repetition. At the end of the control, when the counters 3 and 4 reach the outputs of certain states (for example, zero), the element 6 15 changes its state at the output, the LED 31 lights up, informing about the end of the control. The output signal of element 6 also goes to the third input of key 2, prohibiting the passage of pulses of generator 20 to the input of counter 3.

This embodiment of the device allows controlling not only inter-connector installation, but also intra-connector installation, and also allows controlling the harness connectors 25. In this case, the contacts of the wires in the bundle are conditionally divided into two parts. The first part is assigned to the first connector, and the second to the second and the harness is considered as a cable or, otherwise, on the keyboard 17 they set 30 the code received on the first group of outputs 35 equal to the number of contacts on the wires in the harness, and the code received on the second group of outputs 33. equal to zero. The harness wires are connected to the connecting block 29 and the correctness of the manufacture of the harness is monitored.

Claims (1)

SUMMARY OF THE INVENTION A device for monitoring the installation of electrical connections, comprising a pulse generator 40, a key, a first counter, a second counter, an indicator End of control, first decoder, second decoder. the first indicator of the contact number, the second indicator of the contact number, the first 45 terminal, the second terminal, the first switch, the second switch, the third terminal, the first and second formers, the trigger, the connecting block, the first and second key inputs are connected to the output of the trigger-50 ger and the output of the pulse generator, respectively, the key output is connected to the first input of the first counter, the output of which is connected to the first input of the second counter, the bit outputs 55 of the first and second counters are connected to the bit inputs of the second and first switch ores, respectively, the outputs of the first and second decoders are connected to the input of the first and second indicators, the number of contacts, the outputs of the first and second formers are connected respectively to the clock input and to the trigger reset input, the information outputs of the first and second switches are connected to the corresponding outputs of the connecting block, the input of the first the switch is connected to the third terminal, the first terminal is connected to the second input of the second counter, characterized in that, in order to expand the scope, o a keyboard, a delay element, a first coincidence element, a coincidence block, a resistor, a second coincidence element, the first and second subtracters, the first and second multiplexers, the first and second connectors number indicators are introduced, while the keyboard output is connected to the third input of the second counter, the second output the keyboard is connected to the first input of the first and second subtracters, the second input of each of which is connected to the discharge output of the second counter, the first input of the multiplexer, to the second input of the first counter and to the bit output of the first of the first counter, with the first input of the coincidence unit, with the first input of the second multiplexer, respectively, the first outputs of the first and second subtracters are connected to the control input of the first multiplexer and to the input of the first indicator of the connector number. with the control input of the second multiplexer and with the input of the second connector number indicator, respectively, the outputs of the first and second multiplexers are connected to the inputs of the first and second decoders, respectively, the first terminal is connected to the second input of the delay element, the output of which is connected to the third input of the first counter, the output of which is connected to the first input of the delay element and with the first input of the first coincidence element, the second input of which is connected to the output of the first counter, the output of the first coincidence element is connected to by the progress of the indicator End of control and with the third key input, the second input of the co-ownership unit is connected to the discharge output of the second counter, the output of the coincidence unit is connected to the first input of the second coincidence element, the output of which is connected to the input of the second driver, the second terminal is connected to the second input of the second coincidence element, the output of the second switch is connected to the input of the first driver and through the resistor to the common bus of the device, the second output of the first and second subtractors is connected to the second input of the first and second multip lexors respectively.