Aviation plug test box

Abstract

The invention provides an aviation plug test box. The aviation plug test box comprises a machine box, a switching interface, a power supply interface, a key, a test pin array, a display screen, a power supply key and a USB interface, a power supply output module is arranged in the machine box and is used for outputting a direct-current power supply; a measuring circuit module is arranged in the machine box; a control main board is arranged in the center in the machine box; the power supply output module is electrically connected with the measuring circuit module; the power key and the USB interface are arranged on the right side wall of the middle machine box; the switching interface and the power interface are arranged on the rear side wall of the machine box; the test pin array is arranged in the machine box and is electrically connected with the switching interface; a processor is arranged in the machine box; the display screen is arranged in the center of the upper surface of the machine box; according to the invention, the problem of difficulty in testing finished products or aviation plugs with difficulty in pin number identification can be solved in a limited working space, manpower, time and cost are saved, and the working efficiency is improved; and the accident of'sparking 'can be effectively avoided.

Description

Technical Field

[0001] The invention belongs to the field of aircraft plug testing devices, and in particular relates to an aviation plug testing box. Background Art

[0002] After the cable laying and onboard finished products are installed on the aircraft, the impedance and power supply of the installed onboard finished products need to be measured on board. Currently, this work mainly uses test leads and multimeters for operation and measurement. In order to ensure good contact between the test leads and the plug pins and the multimeter probes, the connections are temporarily wrapped and insulated with insulating tape. The cooperation of 2-4 people is required for the operation. During the measurement process, it is easy for the test lead pins to accidentally connect to other pins on the plug, the aircraft shell or other conductive bodies, causing "sparking" accidents. During the measurement process, the installation space of the installed plug is limited, resulting in insufficient operating space to identify the plug pin number. Even with the help of auxiliary tools such as flashlights and rearview mirrors, it is difficult to complete the impedance and power supply measurement work; because a single aircraft has a large number of finished products on board, the number of plug pins that need to be measured is large. When the aircraft is mass-produced, the number of plug pins that need to be measured will increase exponentially. On-board impedance and power supply measurement is a time-consuming and labor-intensive task; some finished products on the aircraft are powered by excess power. During the inspection, maintenance and troubleshooting of the aircraft, there is a need to power a certain finished product or plug separately, but due to the lack of power supply products or conflicts with other work on the aircraft, it is not possible to power it separately, resulting in the inability to carry out the work quickly. Summary of the invention

[0003] In view of the above problems, the object of the present invention is to provide an aviation plug test box which can improve work efficiency and effectively avoid the occurrence of "sparking" accidents.

[0004] The present invention is achieved through the following technical solutions: An aviation plug test box, comprising a machine box, a transfer interface, a power interface, a button, a test pin array, a display screen, a power button and a USB interface; a power output module is arranged inside the machine box for DC power output; a measurement circuit module is arranged inside the machine box for measuring impedance, AC voltage and DC voltage; a control mainboard is arranged in the center of the machine box; the power output module is electrically connected to the measurement circuit module; the power button and the USB interface are arranged on the right side wall of the machine box; the transfer interface and the power interface are arranged on the rear side wall of the machine box; the test pin array is installed inside the machine box and is electrically connected to the transfer interface; a processor is arranged inside the machine box; the display screen is arranged in the center of the upper surface of the machine box; the button is arranged on the upper surface of the machine box below the display screen; the power interface is electrically connected to the power output module The key test pin array, display screen, power button, USB interface and processor are electrically connected to the control mainboard respectively; the test pin array is electrically connected to the measurement circuit module; the machine box is provided with mounting holes for installing the upper surface cover of the machine box around it; the test pin array has 16 pins per row, and there are 10 rows in total; the interface end of the adapter interface corresponds to the test pin array one by one; a relay 1 is provided between the test pin array and the power output module and the measurement circuit module; a relay 2 is provided between the test pin array and the power output module; a relay 3 is provided between the test pin array and the measurement circuit module; the relay 1 is a double-pole double-throw relay; the relays 2 and 3 are single-pole three-throw relays; the pins of the adapter interface are round aviation plugs or socket strips with horizontally distributed pins.

[0005] Beneficial effects of the present invention: The present invention can solve the problem of difficult testing of finished products or aviation plugs with difficult pin number identification within a limited working space, save manpower and time costs, and improve work efficiency; and can effectively avoid the occurrence of "sparking" accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] The present invention is further described in detail below with reference to the accompanying drawings.

[0007] Figure 1 It is a structural schematic diagram of the present invention.

[0008] Figure 2 It is a partial cross-sectional view of the interior of the present invention.

[0009] Figure 3 It is a circuit diagram of the test pin array, power output module and measurement circuit module of the present invention.

[0010] As shown in the figure: 1-machine box; 11-mounting hole; 12-adapter interface; 13-power interface; 14-control mainboard; 15-processor; 2-button; 21-test pin array; 3-display screen; 31-power output module; 32-measurement circuit module; 4-power button; 5-USB interface; 6-relay one; 7-relay two; 8-relay three. DETAILED DESCRIPTION

[0011] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0012] It should be noted that the structures, proportions, sizes, etc. drawn in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0013] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. It should be noted that the terms "include", "comprise" or any other variants are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0014] like Figure 1-Figure 3 An aviation plug test box is shown, comprising a box 1, a mounting hole 11, a transfer interface 12, a power interface 13, a control mainboard 14, a processor 15, a button 2, a test pin array 21, a display screen 3, a power output module 31, a measurement circuit module 32, a power button 4, a USB interface 5, a relay 1 6, a relay 2 7, and a relay 3 8.

[0015] The machine box 1 is provided with mounting holes 11 around it for mounting the upper surface cover of the machine box 1; a power output module 31 is provided inside the machine box 1 for DC power output; a measuring circuit module 32 is provided inside the machine box 1 for measuring impedance, AC voltage and DC voltage; a control mainboard 14 is provided in the center inside the machine box 1; the power output module 31 is electrically connected to the measuring circuit module 32; the power button 4 and the USB interface 5 are provided on the right side wall of the machine box 1; a processor 15 is provided inside the machine box 1; the display screen 4 is provided in the center of the upper surface of the machine box 1; the button 2 is provided on the upper surface of the machine box 1 below the display screen 3; the power interface 13 is electrically connected to the power output module 31; the button 2, the test pin array 21, the display screen 3, the power button 4, the USB interface 5 and the processor 15 are electrically connected to the control mainboard 14 respectively; the test pin array 21 is electrically connected to the measuring circuit module 32.

[0016] The adapter interface 12 and the power interface 13 are arranged on the rear side wall of the machine box 1; the test pin array 21 is installed inside the machine box 1 and is electrically connected to the adapter interface 12; the pins of the adapter interface 12 are circular aviation plugs or socket strips with horizontally distributed pins.

[0017] The test pin array 21 has 16 pins per row, with a total of 10 rows. The pins of an aviation plug are generally less than 160 pins, and the extra pins of the adapter interface 12 are empty; a relay 6 is arranged between the test pin array 21 and the power output module 31 and the measurement circuit module 32; a relay 2 7 is arranged between the test pin array 21 and the power output module 31; a relay 3 8 is arranged between the test pin array 21 and the measurement circuit module 32; the interface end of the adapter interface 12 corresponds one-to-one with the test pin array 21; the relay 6 is a double-pole double-throw relay; the Relay 2 7 and relay 3 8 are single-pole three-throw relays. Relay 2 7 and relay 3 8 can control the test circuit to access the adjustable DC regulated power supply output module 31, the measurement circuit module 32 or the neutral position; both ends of the pins of each test pin array 21 are controlled by relay 1 6. Relay 1 6 is the main relay of the test circuit. Relay 1 6 is in a normally open state when not powered, and is closed after power is supplied. The processor 15 is controlled by the control motherboard 14 to connect the test circuit. When the software monitors abnormal current and voltage in the system, the software triggers the protection logic, and the control motherboard 14 controls relay 1 6 to disconnect.

[0018] Working principle of the present invention: Connect the aviation plug to the adapter interface 12. After the test box is powered on, select the measurement or power supply mode through the button 2 on the upper surface of the machine box 1, and enter the pin number of the corresponding plug to be measured or powered. The corresponding relay 1 6, relay 2 7 and relay 3 8 can be controlled to be energized, so that the corresponding pins are connected to the closed circuit, so as to measure the impedance and voltage of the finished product or aviation plug on the aircraft or supply it with power. The measurement results can be displayed in real time on the display screen 3 and automatically saved to the processor 15. The data can be copied out through the USB interface 5. Once the test box detects abnormal voltage and current, it will start the protection mechanism and automatically cut off the power to avoid damage to the finished product or cable on the aircraft.

[0019] The protection scope of the present invention is not limited to the technical solutions disclosed in the specific implementation methods. Any modifications, equivalent replacements, improvements, etc. made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. An aviation plug test box, characterized in that: The invention comprises a machine box (1), a transfer interface (12), a power interface (13), a button (2), a test pin array (21), a display screen (3), a power button (4) and a USB interface (5); a power output module (31) is arranged inside the machine box (1) for outputting a DC power supply; a measurement circuit module (32) is arranged inside the machine box (1) for measuring impedance, AC voltage and DC voltage; a control mainboard (14) is arranged in the center of the machine box (1); the power output module (31) is electrically connected to the measurement circuit module (32); the power button (4) and the USB interface (5) are arranged on the right side wall of the machine box (1); the transfer interface (12) and the power interface (13) are arranged The device is disposed on the rear side wall of the box (1); the test pin array (21) is installed inside the box (1) and is electrically connected to the adapter interface (12); a processor (15) is arranged inside the box (1); the display screen (4) is arranged at the center of the upper surface of the box (1); the button (2) is arranged on the upper surface of the box (1) below the display screen (3); the power interface (13) is electrically connected to the power output module (31); the button (2), the test pin array (21), the display screen (3), the power button (4), the USB interface (5) and the processor (15) are electrically connected to the control mainboard (14) respectively; and the test pin array (21) is electrically connected to the measurement circuit module (32).

2. The aviation plug test box according to claim 1, characterized in that: The pins of the adapter interface (12) are circular aviation plugs or socket strips with horizontally distributed pins.

3. The aviation plug test box according to claim 1, characterized in that: The machine box (1) is provided with mounting holes (11) around its periphery for mounting a cover plate on the upper surface of the machine box (1).

4. The aviation plug test box according to claim 1, characterized in that: The test pin array (21) has 16 pins per row, with a total of 10 rows.

5. The aviation plug test box according to claim 1, characterized in that: The interface ends of the adapter interface (12) correspond one-to-one to the test pin array (21).

6. The aviation plug test box according to claim 1, characterized in that: A relay 1 (6) is provided between the test pin array (21) and the power output module (31) and the measurement circuit module (32); a relay 2 (7) is provided between the test pin array (21) and the power output module (31); and a relay 3 (8) is provided between the test pin array (21) and the measurement circuit module (32).

7. The aviation plug test box according to claim 6, characterized in that: The relay 1 (6) is a double-pole double-throw relay; the relay 2 (7) and the relay 3 (8) are single-pole triple-throw relays.

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