Contact detection device for aviation plug

Abstract

The utility model provides an aviation plug contact detection device, which belongs to the technical field of avionics and comprises a mounting shell, a microcontroller, a liquid crystal display screen, a dial control unit, an upper computer and a plurality of press type quick wiring devices. The liquid crystal display screen, the dial-up control unit and the plurality of press-type quick wiring devices are all installed on the surface of the installation shell, the liquid crystal display screen, the dial-up control unit and the upper computer are all electrically connected with the microcontroller, the output end of each press-type quick wiring device is electrically connected with the microcontroller, and the input end of each press-type quick wiring device is used for being connected with an aviation plug wire core. The technical problems of low detection efficiency and inaccurate detection result caused by the fact that aviation plug wire core detection depends on manual operation and each wire core of an aviation plug is detected one by one through a universal meter in the prior art are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of avionics technology especially, relate to an aviation plug contact detection device. BACKGROUND

[0002] The aviation plug as a kind of connector originating from military field, plays a vital role in electrical circuit connection.Compared with ordinary power and signal connector, aviation plug is widely used in power and other industries by virtue of its outstanding protective performance and plug-and-play convenient characteristics.In order to ensure the welding quality and connection accuracy of aviation plug cable, its detection work is particularly important.

[0003] In the traditional detection method, usually rely on manual operation, through multimeter to the wire core of aviation plug one by one detection.But when the wire core of aviation plug is more, this detection mode not only detection efficiency is low, also easy to miss detection due to human operation error, lead to inaccurate detection result. UTILITY MODEL CONTENTS

[0004] The purpose of the embodiment of the application is to provide an aviation plug contact detection device, to solve the technical problems that the wire core detection of aviation plug relies on manual operation in prior art, through multimeter to the wire core of aviation plug one by one detection, lead to low detection efficiency and inaccurate detection result.

[0005] To achieve the above purpose, the technical scheme adopted by the embodiment of the application is as follows:

[0006] An aviation plug contact detection device for detecting the on-off of the wire core of aviation plug, comprising a mounting shell, a microcontroller, a liquid crystal display, a dial control unit, an upper computer and a plurality of press-type quick wiring devices;

[0007] The microcontroller is installed inside the mounting shell, and the liquid crystal display, the dial control unit and the plurality of press-type quick wiring devices are all installed on the surface of the mounting shell;

[0008] The liquid crystal display, the dial control unit and the upper computer are all electrically connected with the microcontroller;

[0009] The output end of the press-type quick wiring device is electrically connected with the microcontroller, and the input end is used for connecting with the wire core of aviation plug.

[0010] In the aviation plug contact detection device described in the embodiment of the application, the press-type quick wiring device is connected with the microcontroller through detection circuit, and the detection circuit comprises an optoelectronic coupler, a first current-limiting resistor and a second current-limiting resistor.

[0011] The first current-limiting resistor, the second current-limiting resistor and the input end of the optoelectronic coupler are connected in series, the other end of the first current-limiting resistor is connected with the output end of the press-type quick wiring device, and the output end of the optoelectronic coupler is connected with the microcontroller.

[0012] In the aviation plug contact detection device provided in the embodiment of the application, the detection circuit further comprises a bidirectional TVS diode.

[0013] One end of the bidirectional TVS diode is connected to the connection between the first current-limiting resistor and the second current-limiting resistor, and the other end is grounded.

[0014] In the aviation plug contact detection device provided in the embodiment of the application, the dial control unit comprises a mode selection dial, a group selection dial and a detection switch dial.

[0015] The mode selection dial, the group selection dial and the detection switch dial are all electrically connected to the microcontroller.

[0016] In the aviation plug contact detection device provided in the embodiment of the application, the bottom of the mounting shell is provided with a vibration table.

[0017] In the aviation plug contact detection device provided in the embodiment of the application, the model of the microcontroller is STM32F407VGT6.

[0018] In the aviation plug contact detection device provided in the embodiment of the application, the press-type quick wiring device comprises a wiring box, a U-shaped conductive elastic sheet, a fixing block, a pressing block and a conductive block.

[0019] The wiring box is provided with a pressing block through groove and a wiring hole, the pressing block through groove is located at the top end of the wiring box and communicates with the wiring hole;

[0020] One end of the pressing block is rotationally connected with one end of the pressing block through groove, the bottom end is provided with a groove, at least two springs are arranged in the groove, and one end of the two springs away from the bottom of the groove is provided with a pressing piece.

[0021] The fixing block and the U-shaped conductive elastic sheet are arranged in the wiring hole, the U-shaped conductive elastic sheet is arranged around the fixing block, the first end is located between the fixing block and the pressing piece, and the second end is supported on the wall of the wiring box.

[0022] One end of the conductive block is connected with the second end of the U-shaped conductive elastic sheet, and the other end penetrates through the bottom of the wiring box.

[0023] The pressing type quick wiring device is provided with a pressing block limiting structure, the pressing block limiting structure comprises a limiting hole, a limiting spring, a limiting block, a reset hole and a reset pressing block;

[0024] The limiting hole is arranged on the pressing block, the limiting block is slidingly arranged in the limiting hole, and the limiting spring is arranged in the limiting hole, one end of the limiting spring is connected with the hole bottom of the limiting hole, and the other end is connected with the limiting block.

[0025] The reset hole is arranged on the junction box, and the reset pressing block is slidingly arranged in the reset hole.

[0026] In the aviation plug contact detection device provided in the embodiment of the application, a limiting sliding groove is arranged in the reset hole, a limiting sliding block is arranged on the outer side of the reset pressing block, and the reset pressing block is slidingly connected with the reset hole through the limiting sliding groove and the limiting sliding block.

[0027] In the aviation plug contact detection device provided in the embodiment of the application, the top of one end of the pressing block close to the limiting hole is provided with a pressing plate, and the pressing plate is used for pressing and / or pulling the pressing block.

[0028] Compared with the prior art, the embodiment of the application has the following beneficial effects:

[0029] According to the technical solution described above, the aviation plug contact detection device provided in the embodiment of the application can quickly connect each core of the aviation plug through the plurality of pressing type quick wiring devices, improve the detection efficiency, avoid the missed detection of the core, configure the device parameters for the microcontroller by the upper computer, quickly collect the response signal through the microcontroller after the device is powered on, and display the detection result on the liquid crystal display screen, thereby solving the technical problems of low detection efficiency and inaccurate detection result caused by the dependence of the aviation plug core detection on manual operation and the one-by-one detection of each core of the aviation plug through the multimeter in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiment description. The drawings are not intended to be drawn to scale, and in order to be clear, not every component will be marked in each drawing. The drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0031] Figure 1 The structure of the embodiment of the application is shown in the structure of the embodiment of the application.

[0032] Figure 2The frame diagram of the embodiment of the present application (except the vibration table).

[0033] Figure 3 The circuit diagram of the detection circuit in the embodiment of the present application.

[0034] Figure 4 The structural schematic diagram of the press-type quick wiring device in the embodiment of the present application.

[0035] Figure 5 The Figure 4 The partial enlarged schematic diagram of A in the middle.

[0036] Explanation of reference signs:

[0037] 1 - installation shell, 2 - microcontroller, 3 - liquid crystal display, 4 - upper computer, 5 - press-type quick wiring device, 6 - detection circuit, 7 - mode selection dial, 8 - group selection dial, 9 - detection switch dial, 10 - vibration table, 11 - wiring box, 12 - U-shaped conductive spring, 13 - fixed block, 14 - pressing block, 15 - conductive block, 16 - pressing block through slot, 17 - wiring hole, 18 - groove, 19 - spring, 20 - pressing piece, 21 - limiting hole, 22 - limiting spring, 23 - limiting block, 24 - reset hole, 25 - reset pressing block, 26 - limiting sliding groove, 27 - limiting sliding block, 28 - pressure lifting plate. DETAILED DESCRIPTION

[0038] In the traditional aviation plug detection method, manual operation is usually relied on, and each core of the aviation plug is detected one by one by using a multimeter. However, when the cores of the aviation plug are many, this detection method is not only low in detection efficiency, but also prone to inaccurate detection results due to human operation errors.

[0039] In view of this, the aviation plug contactivity detection device provided in the embodiments of the present application is conceived to quickly connect each core of the aviation plug through a plurality of press-type quick wiring devices, improve the detection efficiency, avoid the missed detection of the cores, configure the device parameters for the microcontroller by the upper computer, quickly collect the response signals by the microcontroller after the device is powered on, and display the detection results on the liquid crystal display, thereby solving the technical problems in the prior art that the detection of the cores of the aviation plug relies on manual operation, each core of the aviation plug is detected one by one by using a multimeter, and the detection efficiency is low and the detection results are inaccurate.

[0040] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0041] In the description of the application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0042] In the description of the application, it needs to be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication or interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0043] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "under" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0044] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplification, the elements of the particular examples are described in the following disclosure. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application can repeat the reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and / or configurations discussed. In addition, the present application provides various specific examples of processes and materials, but one of ordinary skill in the art can realize that other processes can be applied and / or other materials can be used.

[0045] The embodiment of the present application provides an aviation plug contact detection device, as shown in the drawings. Figures 1 to 5 The aviation plug contact detection device comprises a mounting shell 1, a microcontroller 2, a liquid crystal display screen 3, a dial control unit, a host computer 4 and a plurality of press-type quick wiring devices 5.

[0046] The microcontroller 2 is STM32F407VGT6.

[0047] The microcontroller 2 is installed in the interior of the mounting shell 1, the liquid crystal display screen 3, the dial control unit and the plurality of press-type quick wiring devices 5 are installed on the surface of the mounting shell 1, the liquid crystal display screen 3, the dial control unit and the host computer 4 are electrically connected with the microcontroller 2, the output end of the press-type quick wiring device 5 is electrically connected with the microcontroller 2, and the input end is used for being connected with the aviation plug core.

[0048] Specifically, the liquid crystal display screen 3, the dial control unit and the plurality of press-type quick wiring devices 5 are located on the front side of the mounting shell 1, the dial control unit is located below the liquid crystal display screen 3, and the plurality of press-type quick wiring devices 5 are distributed at intervals below the dial control unit. In this embodiment, the number of press-type quick wiring devices 5 is 24, the dial control unit includes mode selection dial 7, group selection dial 8 and detection switch dial 9, the mode selection dial 7, the group selection dial 8 and the detection switch dial 9 are electrically connected to the microcontroller 2, the press-type quick wiring device 5 includes a wiring box 11, a U-shaped conductive spring 12, a fixed block 13, a pressing block 14, a conductive block 15 and a pressing block limiting structure, the wiring box 11 is provided with a pressing block through slot 16 and a wiring hole 17, the pressing block through slot 16 is located at the top end of the wiring box 11 and communicates with the wiring hole 17, one end of the pressing block 14 is rotatably connected to one end of the pressing block through slot 16 through a rotating shaft, and the bottom end is provided with a groove 18, at least two springs 19 are arranged in the groove 18, and the ends of the two springs 19 away from the bottom of the groove 18 are provided with a pressing piece 20, the fixed block 13 and the U-shaped conductive spring 12 are arranged in the wiring hole 17, the U-shaped conductive spring 12 is arranged around the fixed block 13, the first end is located between the fixed block 13 and the pressing piece 20, and the second end is supported on the wall of the wiring box 11, one end of the conductive block 15 is connected with the second end of the U-shaped conductive spring 12, and the other end penetrates through the bottom of the wiring box 11, the pressing block limiting structure includes a limiting hole 21, a limiting spring 22, a limiting block 23, a reset hole 24 and a reset pressing block 25, the limiting hole 21 is arranged on the pressing block 14, the limiting block 23 is slidably arranged in the limiting hole 21, the limiting spring 22 is arranged in the limiting hole 21, one end of the limiting spring 22 is connected with the hole bottom of the limiting hole 21, and the other end is connected with the limiting block 23, the reset hole 24 is arranged on the wiring box 11, and the reset pressing block 25 is slidably arranged in the reset hole 24.

[0049] The mode selection dial 7 is used to select the detection mode, the group selection dial 8 is used to select the group of detection, and the detection switch dial 9 is used to control the on-off of the device. In this embodiment, the detection mode is divided into two types, one is time control mode, and the other is dial control mode. The time control mode is configured by the host computer 4. When the device is started by the detection switch dial 9, the detection stops after the configured time interval. When in the dial control mode, the detection of the aviation plug wire core is only controlled by the detection switch dial 9. The 24 press-type quick wiring devices are divided into two groups. The group selection dial 8 is used to select the group to be detected. In use, the wire core of the aviation plug is inserted into the wiring hole 17, and the pressing block 14 is pressed down. At this time, the pressing block 14 is completely located in the pressing block through slot 16. The limiting block 23 is inserted into the reset hole 24 under the action of the limiting spring 22, so as to realize the limiting and fixing of the pressing block 14. At this time, the pressing piece 20 is pressed downward under the action of the spring 19. The U-shaped conductive spring 12 itself has a upward restoring force. The pressing piece 20 and the U-shaped conductive spring 12 jointly clamp the aviation plug wire core. When the press-type quick wiring device 5 needs to release the aviation plug wire core, the reset pressing block 25 is pressed inward. The reset pressing block 25 presses the limiting block 23 inwardly to the limiting hole 21, so that the limiting block 23 is separated from the reset hole 24. At this time, the pressing block 14 is in a relaxed state and moves upward, so as to end the clamping of the aviation plug wire core. Preferably, in order to improve the clamping force of the aviation plug wire core, the bottom end of the pressing piece 20 can be arc-shaped and has a plurality of oblique protrusions distributed at equal intervals, so as to increase the friction force of the pressing piece 20 to the aviation plug wire core. In order to improve the heat dissipation effect of the device, heat dissipation holes can be arranged on the side of the mounting shell 1. It should be noted that the device also has a power supply for providing power to the electronic devices of the device except the host computer 4. The specific power supply circuit is a conventional prior art, which will not be described in detail here. The host computer 4 is a PC, which uses commercial power.

[0050] In some preferred embodiments, the press-type quick wiring device 5 is connected with the microcontroller 2 through the detection circuit 6. The detection circuit 6 includes a photoelectric coupler U1, a first current limiting resistor R1, a second current limiting resistor R2, and a bidirectional TVS diode D1. The first current limiting resistor R1, the second current limiting resistor R2, and the input end of the photoelectric coupler U1 are connected in series. One end of the bidirectional TVS diode D1 is connected to the connection between the first current limiting resistor R1 and the second current limiting resistor R2, and the other end is grounded. The other end of the first current limiting resistor R1 is connected with the output end of the press-type quick wiring device 5. The output end of the photoelectric coupler U1 is connected with the GPIO pin of the microcontroller 2.

[0051] In the embodiment, the photoelectric coupler U1 is TLP292, the bidirectional TVS diode D1 is SMBJ24CA, the second current-limiting resistor R2 is connected to the positive electrode of the input end of the photoelectric coupler U1 (i.e. the positive electrode of the light-emitting diode), the negative electrode of the input end of the photoelectric coupler U1 (i.e. the negative electrode of the light-emitting diode) is grounded, the collector of the output end of the photoelectric coupler U1 (the collector of the photosensitive triode) is connected to the GPIO pin of the microcontroller 2, and preferably, a pull-up resistor R3 is connected between the collector of the output end of the photoelectric coupler U1 and the +3.3V power supply to ensure the stability of the level, and the emitter of the output end of the photoelectric coupler U1 (the emitter of the photosensitive triode) is grounded. The press-type quick wiring device 5 is connected to the microcontroller 2 through the detection circuit 6, which can effectively prevent high-frequency noise and electromagnetic interference and improve the stability and safety of the device.

[0052] In some preferred embodiments, the bottom of the mounting shell 1 is provided with a vibration table 10.

[0053] In some preferred embodiments, the bottom of the mounting shell 1 is provided with a vibration table 10.

[0054] In some preferred embodiments, the reset hole 24 is provided with a limiting sliding groove 26, and the outer side of the reset pressing block 25 is provided with a limiting sliding block 27, and the reset pressing block 25 is slidably connected with the reset hole 24 through the limiting sliding groove 26 and the limiting sliding block 27.

[0055] In some preferred embodiments, the reset hole 24 is provided with a limiting sliding groove 26, and the outer side of the reset pressing block 25 is provided with a limiting sliding block 27, and the reset pressing block 25 is slidably connected with the reset hole 24 through the limiting sliding groove 26 and the limiting sliding block 27.

[0056] In some preferred embodiments, the top of one end of the pressing block 14 close to the limiting hole 21 is provided with a lifting plate 28, and the lifting plate 28 is used for pressing / taking up the pressing block 14. By providing the lifting plate 28, the pressing block 14 can be quickly pressed / taken up, thereby improving the fixing and loosening of the press-type quick wiring device 5 to the wire core of the aviation plug.

[0057] In summary, the aviation plug contactivity detection device provided by the embodiment of the application improves the detection efficiency by connecting each wire core of the aviation plug through a plurality of press-type quick wiring devices, avoids the missed detection of the wire core, configures the device parameters for the microcontroller by the upper computer, powers on the device, quickly collects the response signal through the microcontroller, and displays the detection result on the liquid crystal display screen, thereby solving the technical problems in the prior art that the detection of the wire core of the aviation plug relies on manual operation, each wire core of the aviation plug is detected one by one through the multimeter, and the detection efficiency is low and the detection result is inaccurate.

[0058] The aviation plug contactivity detection device provided by the embodiment of the application is described in detail above, and the principle and implementation mode of the application are described by applying specific examples in this paper. The above embodiment is only used to help understand the technical solution of the application and its core idea; those skilled in the art should understand that the technical solution recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the application.

Claims

1. A contact testing device for aviation connectors, used to detect the continuity of the wire cores in aviation connectors, characterized in that, The installation shell, the microcontroller, the liquid crystal display, the dial control unit, the upper computer and a plurality of press-type quick wiring devices are included. The microcontroller is installed inside the installation shell, and the liquid crystal display, the dial control unit and a plurality of the press-type quick wiring devices are installed on the surface of the installation shell. The liquid crystal display, the dial control unit and the upper computer are electrically connected with the microcontroller. The output end of the press-type quick wiring device is electrically connected with the microcontroller, and the input end is used for being connected with the aviation plug core.

2. An aircraft plug contact inspection device as claimed in claim 1, wherein, The press-type quick wiring device is connected with the microcontroller through a detection circuit, and the detection circuit includes a photoelectric coupler, a first current limiting resistor and a second current limiting resistor. The first current limiting resistor, the second current limiting resistor and the input end of the photoelectric coupler are connected in series, the other end of the first current limiting resistor is connected with the output end of the press-type quick wiring device, and the output end of the photoelectric coupler is connected with the microcontroller.

3. An aircraft plug contact inspection device as claimed in claim 2, wherein, The detection circuit further includes a bidirectional TVS diode. One end of the bidirectional TVS diode is connected to the connection position of the first current limiting resistor and the second current limiting resistor, and the other end is grounded.

4. An aircraft plug contact inspection device as claimed in claim 1, wherein, The dial control unit includes mode selection dial, group selection dial and detection switch dial. The mode selection dial, the group selection dial and the detection switch dial are electrically connected with the microcontroller.

5. An aircraft plug contact inspection device as claimed in claim 1, wherein, The bottom of the installation shell is provided with a vibration table.

6. An aircraft plug contact inspection device as claimed in claim 1, wherein, The model of the microcontroller is STM32F407VGT6.

7. An aircraft plug contact inspection device as claimed in claim 1, wherein, The press-type quick wiring device includes a wiring box, a U-shaped conductive elastic sheet, a fixing block, a pressing block and a conductive block. The pressing block through groove and the wiring hole are arranged on the wiring box, the pressing block through groove is located at the top end of the wiring box and communicates with the wiring hole. One end of the pressing block is rotationally connected with one end of the pressing block through groove, and the bottom end is provided with a groove, at least two springs are arranged in the groove, and the ends of the two springs away from the bottom of the groove are provided with pressing pieces. The fixing block and the U-shaped conductive elastic sheet are arranged in the wiring hole, the U-shaped conductive elastic sheet is arranged around the fixing block, the first end is located between the fixing block and the pressing piece, and the second end is supported on the wall of the wiring box. One end of the conductive block is connected with the second end of the U-shaped conductive elastic sheet, and the other end penetrates through the bottom of the wiring box.

8. An aircraft plug contact inspection device as claimed in claim 7, wherein, The press-type quick wiring device is provided with a pressing block limiting structure, and the pressing block limiting structure includes a limiting hole, a limiting spring, a limiting block, a reset hole and a reset pressing block. The limiting hole is arranged on the pressing block, the limiting block is slidingly arranged in the limiting hole, and the limiting spring is arranged in the limiting hole, one end of the limiting spring is connected with the hole bottom of the limiting hole, and the other end is connected with the limiting block. The reset hole is arranged on the wiring box, and the reset pressing block is slidingly arranged in the reset hole.

9. An aircraft plug contact inspection apparatus as claimed in claim 8, wherein, A limiting sliding groove is arranged in the reset hole, a limiting sliding block is arranged on the outer side of the reset pressing block, and the reset pressing block is slidingly connected with the reset hole through the limiting sliding groove and the limiting sliding block.

10. An aircraft plug contact inspection apparatus as claimed in claim 8, wherein, An end top of the pressing block close to the limiting hole is provided with a pressure lifting plate, which is used for pressing and lifting the pressing block.

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