Control circuit for simulating relay fault and practical training platform

Abstract

The utility model discloses a control circuit for simulating relay faults and a practical training platform. The control circuit comprises a power supply, a voltage stabilizing module, an external module and a relay module; the first end of the voltage stabilizing module is connected with the power supply, the second end of the voltage stabilizing module is connected with the first end of the external module, the second end of the external module is connected with the first end of the relay module, and the second end of the relay module is grounded. According to the utility model, the functions of analog simulation, fault injection and fault elimination of the relay in an airplane line can be realized, and the capability of electrical maintenance personnel to carry out fault positioning and elimination on the relay can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit troubleshooting training, in particular to a control circuit and a training platform for simulating relay faults. Background Art

[0002] Failures in the circuit components of various aircraft systems and the connecting lines between components have always been a common and difficult problem on the maintenance front line. Aircraft system circuit schematic identification, line fault measurement and analysis, and standard line repair have always been the shortcomings of electrical maintenance personnel.

[0003] The traditional skill circuit measurement and troubleshooting training bench has a single circuit and can only set up a few simple fixed faults by mechanical means. It does not cover all fault points. More importantly, the circuit needs to be disassembled and restored during measurement. The process is complicated, time-consuming and inefficient. The circuit components suffer large losses and cannot effectively train electrical maintenance personnel in related fault location and cause finding capabilities. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a control circuit and a training platform for simulating relay faults, which can realize the simulation of relays in aircraft lines as well as the functions of fault injection and troubleshooting, and help improve the ability of electrical maintenance personnel to locate and troubleshoot relay faults.

[0005] In a first aspect, an embodiment of the utility model provides a control circuit for simulating relay failure, comprising: a power supply, a voltage stabilizing module, an external module and a relay module;

[0006] The first end of the voltage stabilizing module is connected to the power supply, the second end of the voltage stabilizing module is connected to the first end of the external module, the second end of the external module is connected to the first end of the relay module, and the second end of the relay module is grounded.

[0007] As one preferred solution, the voltage stabilizing module includes a first polarity capacitor, a voltage stabilizer, a resistor and a multi-turn potentiometer;

[0008] The input end of the voltage regulator is respectively connected to the power supply and the positive electrode of the first polarity capacitor, the adjustment end of the voltage regulator is respectively connected to the first end of the resistor and the first fixed end of the multi-turn potentiometer, the output end of the voltage regulator is connected to the second end of the resistor, the second end of the resistor is also connected to the external module, the second fixed end of the multi-turn potentiometer is connected to the second end of the first polarity capacitor, and the sliding end of the multi-turn potentiometer is connected to the external module.

[0009] As one preferred solution, the external module includes an external ammeter, an external voltmeter and a second polarity capacitor;

[0010] The first end of the external ammeter is respectively connected to the second end of the resistor, the first end of the external voltmeter and the first end of the second polarity capacitor, the second end of the external ammeter is connected to the relay module, the second end of the second polarity capacitor is connected to the second end of the external voltmeter, and the second end of the external voltmeter is respectively connected to the sliding end of the multi-turn potentiometer and the relay module.

[0011] As one preferred solution, the relay module includes a relay, a first light bulb, a second light bulb and nine sockets;

[0012] The first end of the first socket is connected to the second end of the external ammeter, the second end of the first socket is respectively connected to the first end of the third socket, the first end of the fifth socket and the second end of the sixth socket, the first end of the second socket is connected to the negative pole of the first bulb, the second end of the second socket is respectively connected to the second end of the external voltmeter, the second end of the eighth socket and the second end of the ninth socket and grounded, the positive pole of the first bulb is connected to the first end of the fourth socket, the first end of the ninth socket is connected to the negative pole of the second bulb, the positive pole of the second bulb is connected to the second end of the seventh socket, the first end of the relay is respectively connected to the second end of the third socket, the second end of the fourth socket and the second end of the fifth socket; the second end of the relay is respectively connected to the first end of the sixth socket, the first end of the seventh socket and the first end of the eighth socket.

[0013] As one of the preferred schemes, the control circuit includes eight fault points, which are respectively a first short circuit fault point between the second end of the second socket and the second end of the external voltmeter, a second short circuit fault point between the first end of the second socket and the negative pole of the first bulb, a third short circuit fault point between the second end of the fourth socket and the first end of the relay, a fourth short circuit fault point between the negative pole of the second bulb and the first end of the ninth socket, a fifth short circuit fault point between the second end of the relay and the first end of the seventh socket, a sixth short circuit fault point between the second end of the first socket and the first end of the fifth socket, a seventh short circuit fault point between the second end of the first socket and the first end of the sixth socket, and an eighth short circuit fault point between the second end of the eighth socket and the second end of the second socket.

[0014] As a preferred solution, both the first light bulb and the second light bulb are pluggable light bulbs.

[0015] As one preferred solution, the relay is a pluggable relay with a base.

[0016] As a preferred solution, the first socket, the second socket, the third socket, the fourth socket, the fifth socket, the sixth socket, the seventh socket, the eighth socket and the ninth socket are all banana sockets.

[0017] In a second aspect, an embodiment of the utility model provides a training platform for simulating relay failure, comprising:

[0018] Metal stand;

[0019] A host computer, the host computer is mounted on the metal stand to define a receiving cavity; and

[0020] As described in any one of the above-mentioned first aspects, the control circuit for simulating relay failure is accommodated in the accommodating cavity.

[0021] As one of the preferred solutions, the host computer is used to input fault simulation instructions and control the control circuit to generate a specified fault.

[0022] Compared with the prior art, the utility model can set fault points at different positions of the control circuit under the joint action of the voltage stabilizing module, the external module and the relay module, input fault simulation instructions through the host computer, and control the control circuit to generate specified faults. It can realize the simulation of relays in aircraft lines and the functions of fault injection and troubleshooting, which helps to improve the ability of electrical maintenance personnel to locate and troubleshoot relay faults. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a control circuit for simulating relay failure provided by the utility model;

[0024] Figure 2 It is a circuit diagram of a control circuit for simulating relay failure provided by the utility model;

[0025] Figure 3 It is a fault setting diagram of a control circuit for simulating relay faults provided by the utility model;

[0026] Figure 4 The utility model is a structural schematic diagram of a training platform for simulating relay failure. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of this application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the feature. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] In the description of this application, it should be noted that, unless otherwise defined, all technical and scientific terms used in this utility model have the same meanings as those commonly understood by technicians in the technical field of this invention. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0031] See also Figure 1 , the embodiment of the utility model provides a control circuit for simulating relay failure, including: a power supply 104, a voltage stabilizing module 101, an external module 102 and a relay module 103;

[0032] The first end of the voltage stabilizing module 101 is connected to the power supply 104 , the second end of the voltage stabilizing module 101 is connected to the first end of the external module 102 , the second end of the external module 102 is connected to the first end of the relay module 103 , and the second end of the relay module 103 is grounded.

[0033] In a specific implementation, through the joint action of the voltage stabilizing module 101, the external module 102 and the relay module 103, fault points can be set at different positions of the control circuit, and fault simulation instructions can be input through the host computer, and the control circuit can be controlled to generate a specified fault. This can realize the simulation of relays in aircraft circuits and the functions of fault injection and troubleshooting, which helps to improve the ability of electrical maintenance personnel to locate and troubleshoot relay faults.

[0034] See also Figure 2 As an improvement of the above solution, the voltage stabilizing module 101 includes a first polarity capacitor C1, a voltage stabilizer M1, a multi-turn potentiometer R1 and a resistor R2;

[0035] The input terminal VI of the voltage regulator M1 is respectively connected to the power supply 104 and the positive electrode of the first polarity capacitor C1, the adjustment terminal ADJ of the voltage regulator M1 is respectively connected to the first end of the resistor R2 and the first fixed end of the multi-turn potentiometer R1, the output terminal VO of the voltage regulator M1 is connected to the second end of the resistor R2, the second end of the resistor R2 is also connected to the external module 102, the second fixed end of the multi-turn potentiometer R1 is connected to the second end of the first polarity capacitor C1, and the sliding end of the multi-turn potentiometer R1 is connected to the external module 102.

[0036] As an improvement of the above solution, the external module 102 includes an external ammeter A, an external voltmeter V and a second polarity capacitor C2;

[0037] The first end of the external ammeter A is respectively connected to the second end of the resistor R2, the first end of the external voltmeter V and the first end of the second polarity capacitor C2, the second end of the external ammeter A is connected to the relay module 103, the second end of the second polarity capacitor C2 is connected to the second end of the external voltmeter V, and the second end of the external voltmeter V is respectively connected to the sliding end of the multi-turn potentiometer R1 and the relay module 103.

[0038] As an improvement of the above solution, the relay module 103 includes a relay K1, a first bulb L1, a second bulb L2 and nine sockets;

[0039] The first end of the first socket is connected to the second end of the external ammeter A, the second end of the first socket is respectively connected to the first end of the third socket, the first end of the fifth socket and the second end of the sixth socket, the first end of the second socket is connected to the negative pole of the first bulb L1, the second end of the second socket is respectively connected to the second end of the external voltmeter V, the second end of the eighth socket and the second end of the ninth socket and is grounded, the positive pole of the first bulb L1 is connected to the first end of the fourth socket, the first end of the ninth socket is connected to the negative pole of the second bulb L2, the positive pole of the second bulb L2 is connected to the second end of the seventh socket, the first end of the relay K1 is respectively connected to the second end of the third socket, the second end of the fourth socket and the second end of the fifth socket; the second end of the relay K1 is respectively connected to the first end of the sixth socket, the first end of the seventh socket and the first end of the eighth socket.

[0040] See also Figure 3 As an improvement of the above scheme, the control circuit includes eight fault points, which are respectively a first circuit break fault point A1 between the second end of the second socket and the second end of the external voltmeter V, a second circuit break fault point A2 between the first end of the second socket and the negative pole of the first bulb L1, a third circuit break fault point A3 between the second end of the fourth socket and the first end of the relay K1, a fourth circuit break fault point A4 between the negative pole of the second bulb L2 and the first end of the ninth socket, a fifth circuit break fault point A5 between the second end of the relay K1 and the first end of the seventh socket, a sixth circuit break fault point A6 between the second end of the first socket and the first end of the fifth socket, a seventh circuit break fault point A7 between the second end of the first socket and the first end of the sixth socket, and an eighth circuit break fault point A8 between the second end of the eighth socket and the second end of the second socket.

[0041] It should be noted that, in this embodiment, only 8 fault points are given, and in other embodiments, the number of fault points may be other numbers.

[0042] Exemplarily, the control circuit includes several measuring points, including X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X12, X13, X14, X15, X16, X17, X18, X19, X20, X21, X22, X23, X24, X25, X26, X27, X28 and X29. By checking the measuring points with testing tools such as a multimeter and an oscilloscope, the working state of the circuit system can be determined, the fault can be located and the cause of the fault can be found.

[0043] As an improvement of the above solution, both the first bulb L1 and the second bulb L2 are pluggable bulbs.

[0044] As an improvement of the above solution, the relay K1 is a pluggable relay with a base.

[0045] It should be noted that the voltage regulator M1 has a heat sink, the specific model is LM117HVK; the relay K1 is a pluggable relay with a base, the specific model is G2R-2-24VDC relay, and its base can be installed on the surface of the panel; of course, the voltage regulator M1 and relay K1 described in the embodiment of the utility model can also be other types and models of components with the same functions, and no specific restrictions are made here.

[0046] As an improvement of the above solution, the first socket, the second socket, the third socket, the fourth socket, the fifth socket, the sixth socket, the seventh socket, the eighth socket and the ninth socket are all banana sockets.

[0047] In actual implementation, you can build the circuit yourself by wiring through the banana sockets installed on the surface of the panel.

[0048] An embodiment of the utility model also provides a training platform for simulating relay failures, comprising: a metal frame; a host computer, the host computer is installed on the metal frame to define a containing cavity; and a control circuit for simulating relay failures as described above, the control circuit being contained in the containing cavity.

[0049] As an improvement of the above solution, the host computer is used to input fault simulation instructions and control the control circuit to generate a specified fault.

[0050] For example, see Figure 4 The training platform includes a metal platform, a host computer with an interface operated by intelligent logic software, and a control circuit for simulating relay failure. The control circuit is accommodated in the accommodation cavity. There are several slots in the accommodation cavity for placing the control circuit. Multiple control circuits can be adapted and the position can be flexibly changed. The replaced control circuit can be automatically identified by the host computer and accepted by the control of the host computer. The trainer can select a suitable control circuit for testing and analysis according to the training requirements;

[0051] It should be noted that the training bench also includes a power supply system with a protection function to effectively ensure the safety of personnel; it also includes a storage area, which has several drawer-type storage bins and several sliding door storage bins. The storage area is equipped with 4 universal wheels under it for easy movement and a locking device; it also includes a dark box. The control circuit is connected to the socket leading to the dark box at any one of the four positions through a plug with a threaded connection, and then fixed to the stand with four screws. The dark box is connected to the host computer to realize data transmission.

[0052] The training platform can achieve full coverage of line fault points, and all possible fault points can be directly and simply approached for measurement without having to disassemble and restore line components as on an airplane or other training bench. At the same time, the fault type of all fault points can be intelligently selected and set.

[0053] The above is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. It should be pointed out that for those skilled in the art, several equivalent obvious variations and / or equivalent substitutions can be made without departing from the technical principle of the present invention. These obvious variations and / or equivalent substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A control circuit for simulating relay failure, characterized in that: include: Power supply, voltage regulator module, external module and relay module; The first end of the voltage stabilizing module is connected to the power supply, the second end of the voltage stabilizing module is connected to the first end of the external module, the second end of the external module is connected to the first end of the relay module, and the second end of the relay module is grounded.

2. The control circuit for simulating relay failure according to claim 1, characterized in that: The voltage stabilizing module includes a first polarity capacitor, a voltage stabilizer, a resistor and a multi-turn potentiometer; The input end of the voltage regulator is respectively connected to the power supply and the positive electrode of the first polarity capacitor, the adjustment end of the voltage regulator is respectively connected to the first end of the resistor and the first fixed end of the multi-turn potentiometer, the output end of the voltage regulator is connected to the second end of the resistor, the second end of the resistor is also connected to the external module, the second fixed end of the multi-turn potentiometer is connected to the second end of the first polarity capacitor, and the sliding end of the multi-turn potentiometer is connected to the external module.

3. The control circuit for simulating relay failure according to claim 2, characterized in that: The external module includes an external ammeter, an external voltmeter and a second polarity capacitor; The first end of the external ammeter is respectively connected to the second end of the resistor, the first end of the external voltmeter and the first end of the second polarity capacitor, the second end of the external ammeter is connected to the relay module, the second end of the second polarity capacitor is connected to the second end of the external voltmeter, and the second end of the external voltmeter is respectively connected to the sliding end of the multi-turn potentiometer and the relay module.

4. The control circuit for simulating relay failure according to claim 3, characterized in that: The relay module includes a relay, a first light bulb, a second light bulb and nine sockets; The first end of the first socket is connected to the second end of the external ammeter, the second end of the first socket is respectively connected to the first end of the third socket, the first end of the fifth socket and the second end of the sixth socket, the first end of the second socket is connected to the negative pole of the first bulb, the second end of the second socket is respectively connected to the second end of the external voltmeter, the second end of the eighth socket and the second end of the ninth socket and grounded, the positive pole of the first bulb is connected to the first end of the fourth socket, the first end of the ninth socket is connected to the negative pole of the second bulb, the positive pole of the second bulb is connected to the second end of the seventh socket, the first end of the relay is respectively connected to the second end of the third socket, the second end of the fourth socket and the second end of the fifth socket; the second end of the relay is respectively connected to the first end of the sixth socket, the first end of the seventh socket and the first end of the eighth socket.

5. The control circuit for simulating relay failure according to claim 4, characterized in that: The control circuit includes eight fault points, which are respectively a first short circuit fault point between the second end of the second socket and the second end of the external voltmeter, a second short circuit fault point between the first end of the second socket and the negative pole of the first bulb, a third short circuit fault point between the second end of the fourth socket and the first end of the relay, a fourth short circuit fault point between the negative pole of the second bulb and the first end of the ninth socket, a fifth short circuit fault point between the second end of the relay and the first end of the seventh socket, a sixth short circuit fault point between the second end of the first socket and the first end of the fifth socket, a seventh short circuit fault point between the second end of the first socket and the first end of the sixth socket, and an eighth short circuit fault point between the second end of the eighth socket and the second end of the second socket.

6. The control circuit for simulating relay failure according to claim 4, characterized in that: The first light bulb and the second light bulb are both pluggable light bulbs.

7. The control circuit for simulating relay failure according to claim 4, characterized in that: The relay is a pluggable relay with a base.

8. The control circuit for simulating relay failure according to claim 4, characterized in that: The first socket, the second socket, the third socket, the fourth socket, the fifth socket, the sixth socket, the seventh socket, the eighth socket and the ninth socket are all banana sockets.

9. A training platform for simulating relay failure, characterized in that: include: Metal stand; A host computer, the host computer is mounted on the metal stand to define a receiving cavity; and A control circuit for simulating relay failure as described in any one of claims 1 to 8, wherein the control circuit is accommodated in the accommodating cavity.

10. The training platform for simulating relay failure according to claim 9, characterized in that: The host computer is used to input fault simulation instructions and control the control circuit to generate a specified fault.

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