SU1257575A1 - Device for checking validity of n electric connections - Google Patents

Abstract

The invention relates to instrumentation technology and can be used to verify correct installation. The purpose of the invention is to expand the functional capabilities of the device by simultaneously indicating the location of all short-circuited connections and breaks. To do this, n additional impulse generators, P indicators, and decoupling elements are additionally introduced into the device. The drawing shows the main 1.1 and additional 1.2-1. And pulse generators, elements 2.1-2.P isolations, indicators 3.1-З.п, elements AND 4.1 - 4.and, object 5 controls. The device also provides productivity boosting by speeding up the search for and elimination of defects. In this case, short-circuited circuits are emitted by synchronous pulse flashing of the LEDs with the frequency of the beats of the frequencies of the generator of closed circuits. 1 hp f-ly, 2 ill. f (L 3 .f .2 sd sd el L-Xg) ./7

Description

The invention relates to instrumentation technology and can be used to verify correct installation.

The purpose of the invention is to expand the functionality of the device by simultaneously indicating the location of all closed and dangling connections and increasing labor productivity by providing the possibility of promptly eliminating defects.

FIG. 1 is a diagram of the device according to the invention; FIG. 2 is a schematic of the release element.

The device contains basic 1.1 and additional 1.2-1. And pulse generators, elements 2.1-2. And decoupling indicators 3.1-3. And elements 4-4-4.11. FIG. 1 also shows object 5 controls.

Element 2.1 (FIG. 2) of the isolation contains the first 6, second 7 and third 8 resistors. The first inputs of the And 4.1-4.m elements are connected to the appropriate terminals for connecting the outputs of the corresponding electrical connection numbers. The output of each generator is 1.1–1. And the pulses are connected to the input of the corresponding element 2.1–2, disconnect h, the output of each of the elements is 4.1–4. m is connected to the input of the corresponding indicator 3,1-З.п, the second input - to the first output of the corresponding element 2.1-2. The h of the isolation is connected by a second output to the input of the corresponding terminal for connecting the input of the number corresponding to the electrical connection. In the decoupling element 2.i, the perz resistor 6 is connected to the device output power bus, the second output directly to the input of the 2.1 isolation element, via the second resistor 7 to the first output of the 2.1 isolation element, through the third resistor 8 the second exit of element 2 „i isolation.

The device works as follows.

The frequencies of the generators 1.1-1.p are not synchronous with each other and are selected within 30-100 Hz. In the absence of defects in the controlled electrical connections of the object 5 (FIG. 1, low-frequency oscillations from the output of the generators 1.1-1, P through the elements

2.1-2.Paraguly distracts directly to one of the inputs of the elements And 4.1-4.11, and through the electrical connections of object 5 to the remaining

The inputs of the elements are 4.1-4. and. At the same time, at the outputs of the latter there are pulses of the same frequency and duty cycle as at the outputs of the corresponding generators 1.1-1.i, and indicators

3.1-3, And signaling with flicker light about the health of the electrical connections of the object 5,

If there is a break at least one of the branches of the electrical circuit

Ob7eekta 5 to the corresponding input of the corresponding element P1 4.1 do not receive pulses from the output of the generator 1.1, As a result, the output of the corresponding element And 4.1 i from 20

there is no signal and corresponding

the indicator 3.1 does not light up, thus indicating a malfunction of the corresponding electrical connection of the object 5.

If there is a defect in the form of a short circuit (additional connection) between the controlled electrical circuits of the object 5 at the output of the corresponding elements 2.1-2,

the decoupling of the signals of the generators 1.1-1. n, for example, the generators 1.1 and 1.2, B is due to the fact that the frequencies of the generators 1.1-1.c are nonsynchronous, at the output of the elements And

4,1-4,2, belonging to defective connections of the object 5, are formed - pulses, varying in duration and duty cycle with a repetition period of duration much lower

fundamental frequency (beating)

The effect of such a signal on the indicators 3,1, 3,2 leads to a pulsating change in the intensity of their luminescence, since they belong to

defective circuits. Moreover, the luminescence of indicators 3.1, 3.2 is synchronous, which makes it possible to distinguish these defective connections from other defective connections,.

If there is a defect in the form of a short circuit of electrical connections and a break in any of the interconnected connections of object 5, two cases are possible. If the interruption of the connection is on the side of the AND 4,1-4 elements, and in relation to the short circuit location, then the indicator 3, t, corresponding to the interrupted 3

The main connection is not illuminated, indicating a break, and the 3.J indicator, which corresponds to another of the connections closed by the honey, illuminates with a pulsating change in the intensity of light, indicating a short circuit of the connections.

If the interruption of the connection is from the side of elements 2.1 - 2.h of the interruption in relation to the short circuit location, then the inputs of the element And Ai corresponding to the interrupted connection of the object 5 through the short circuit conductor impulses from the generator 2.j corresponding to the second from the interconnected elements of the connection of the object 5. The result at the output of the element And 4. i corresponding to the broken connection of the object 5, also appears pulses with varying duration and duty cycle, which leads to a pulsating change eniyu emitting intensity corresponding indicator 3.i and allows you twist failure.

The isolating element 2.i (Fig. 2) contains a resistor 7, which provides an output of the generator 1.i from the input of the element. And 4.i, the resistor 8, the decoupling outputs of the generators 1 .i and 1. when the corresponding electrical connections are closed, and the current limiting resistor 6, which is the generator load l.i.

Thus, due to the introduction of 1.2-ln pulse generators, 2.1-2 elements of isolation and indicators 3.1-3.11, the proposed device provides simultaneous accurate indication of all failed closed and dangling electrical circuits in the case of a break, in the case of a short circuit and combination a short circuit break, while the prototype device only reveals the presence of a failure and the type of failure, but does not indicate the number of the failed electrical circuits. Uca

57575. 4

This capability extends the functionality of the device and increases productivity.

allowing prompt removal of cliffs 5 and closures, since their location is known.

Claims (2)

Invention Formula 10 1. A device for checking the correctness of o-electrical connections, containing a pulse generator and elements And connected by the first inputs to the corresponding terminals 5 for connecting the outputs of the corresponding electric connection numbers, characterized in that, in order to expand the functionality of the device by simultaneously displaying location of all closed and dangling electrical circuits and increase in labor productivity by ensuring the possibility of prompt elimination of the defect , Introduced into the device n-1 additional pulse generators, and indicators and n decoupling elements, wherein each of the pulse generator output is connected to the input .0 of the corresponding isolation element, the output of each of the AND elements is connected to the input of the corresponding indicator, the second input is connected to the first output of the corresponding isolation terminal connected to the input of the corresponding electrical connection by the second output . 0 2. A device according to claim 1, characterized in that the isolation element comprises a first resistor connected by a first terminal to the power supply bus of the device, a second terminal 5 directly - with the input of the isolation element, through the second resistor - with the first output of the isolation element, through the third resistor - with the second output of the isolation element. P one Hcf he. five Phie. 2