A test device for a dispensing control module

Abstract

The application provides a test device of a throw control module, and belongs to the technical field of avionics test. Specifically, a plurality of pins on a test box and welding holes of a measured control module are in contact, a corresponding pin is selected through a rotating switch, a trigger switch is triggered to form a series connection, a voltage signal is provided through the pin selected by the trigger switch, the voltage signal is transmitted to a corresponding unit of the measured control module through the pin, a trigger waveform and an output waveform of the measured control module are received through an oscilloscope, a time difference between the trigger waveform and the output waveform is compared, and a time difference between the trigger waveform and the output waveform is compared, so that the test of the measured control module is realized. Through the processing scheme, the test efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of avionics testing, and in particular to a testing apparatus for a jettison control module. Background Technology

[0002] The small jettison recorder receives various data from the data acquisition unit on board, making it a crucial piece of onboard equipment. In the event of an emergency, the jettison control module controls the separation of the separable components from the aircraft body, highlighting its vital role. The control module receives signals from the ejection seat pull ring, landing gear compression, and inertial contactor, as well as safety signals from the safety control box to determine the jettison conditions. Once the conditions are met, it outputs a start positioning signal to the separable components and a jettison control signal to the separation mechanism. Because a certain type of jettison control module undergoes functional testing before wiring during production, testing can only be performed by soldering wires. This results in low testing efficiency and the risk of damaging the printed circuit board due to frequent soldering. Utility Model Content

[0003] In view of this, this application provides a testing device for a throwing control module, which solves the problems in the prior art and improves testing efficiency.

[0004] The testing device for a throwing control module provided in this application adopts the following technical solution:

[0005] A testing device for a launch control module includes a test box and a power supply, wherein the power supply is electrically connected to a power supply interface on the test box, and the power supply supplies power to the control module under test.

[0006] The test box is provided with a first oscilloscope test hole, a second oscilloscope test hole and a third oscilloscope test hole, which are used to connect different probes of the oscilloscope.

[0007] The test box is equipped with:

[0008] Power supply pins are used to electrically connect to the power supply solder holes on the control module under test.

[0009] The functional pins include a front compartment pull ring signal pin, a rear compartment pull ring signal pin, and an overload signal pin. The front compartment pull ring signal pin, the rear compartment pull ring signal pin, and the overload signal pin are respectively used to electrically connect with the front compartment pull ring signal solder hole, the rear compartment pull ring signal solder hole, and the overload signal solder hole of the control module under test. The front compartment pull ring signal pin, the rear compartment pull ring signal pin, and the overload signal pin are electrically connected to the power supply through a second rotary switch. The first oscilloscope test hole is connected in series between the second rotary switch and the power supply.

[0010] Two output signal pins are connected to the second oscilloscope test hole and one of the output signal pins, and the third oscilloscope test hole is connected to the other output signal pin.

[0011] The test box is equipped with a trigger switch, which is connected in series between the second rotary switch and the power supply interface of the test box. The second rotary switch is used to select one of the front compartment pull ring signal pin, the rear compartment pull ring signal pin, and the overload signal pin and connect it in series with the trigger switch.

[0012] Optionally, the pins on the test box also include wheel-mounted pins, and a wheel-mounted switch is connected in series between the wheel-mounted switch and the power supply interface. The wheel-mounted pins are used to electrically connect to the wheel-mounted signal solder hole of the control module under test.

[0013] Optionally, the pins on the test box also include two fuse pins, with a fuse switch connected in series between the two fuse pins. The two fuse pins are used to electrically connect to the solder holes of the fuse unit of the control module under test.

[0014] Optionally, the pins on the test box also include multiple voltage test pins, which are connected to the output voltage solder holes inside the module under test. The test box is equipped with a voltmeter, and the multiple voltage test pins are connected to the voltmeter via a first rotary switch. The first rotary switch is used to select one of the multiple voltage test pins to be connected to the voltmeter, and the voltmeter is used to detect the voltage between a single voltage test pin and ground.

[0015] Optionally, the voltmeter is a digital display voltmeter, and the digital display voltmeter is integrated on the test box. The test box is equipped with a voltage conversion module, and the digital display voltmeter is electrically connected to the power supply module through the voltage conversion module.

[0016] Optionally, the pins on the test box also include electronic load pins, which are electrically connected to an external load. The electronic load pins are used to electrically connect to the external load solder hole on the control module under test, and one of the electronic load pins is connected to the voltmeter through the first rotary switch.

[0017] Optionally, the power supply pins include normal power supply pins and emergency power supply pins, which are electrically connected to the power module via a power selection switch.

[0018] In summary, this application includes the following beneficial technical effects:

[0019] The original testing method required two people to work together. Using this utility model, the control module introduces the test signal into the test box through contact with the pin bed, without any soldering, thus avoiding risks, ensuring the quality of the control module, and the operation method is simple and reliable. One person can easily complete the test, and the efficiency is high.

[0020] This application allows you to select the test item via a rotary switch and then trigger it via a button. The waveform on the oscilloscope is clearer and more direct, with no jitter.

[0021] A voltage display meter is installed on the test box panel. The test results are displayed directly on the voltage display meter, making the test results more intuitive and accurate. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the test device for the launch control module of this application;

[0024] Figure 2 This is a schematic diagram of the panel structure of the test box in this application;

[0025] Figure 3 This is a schematic diagram of the electrical connection of the test device for the launch control module of this application.

[0026] Explanation of reference numerals in the attached diagram: 1. Test box; 2. Power supply; 21. Voltage conversion module; 23. Voltmeter; 3. First oscilloscope test port; 4. Second oscilloscope test port; 5. Third oscilloscope test port; 6. Trigger switch; 7. Wheel-mounted switch; 8. Fuse switch; 9. Power supply selection switch; 10. Control module under test; 11. Multi-position double-layer rotating band switch. Detailed Implementation

[0027] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0028] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0030] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0031] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.

[0032] This application provides a testing device for a throwing control module.

[0033] like Figures 1 to 3 As shown, a test device for a launch control module includes a test box 1 and a power supply 2. The power supply 2 is electrically connected to the power supply interface on the test box 1, and the power supply 2 supplies power to the control module 10 under test.

[0034] The test box 1 is provided with a first oscilloscope test hole 3, a second oscilloscope test hole 4 and a third oscilloscope test hole 5. The first oscilloscope test hole 3, the second oscilloscope test hole 4 and the third oscilloscope test hole 5 are used to connect different probes of the oscilloscope.

[0035] The test box 1 is equipped with:

[0036] The power supply pin is used to electrically connect to the power supply solder hole on the control module under test 10.

[0037] The functional pins include a front compartment pull ring signal pin X30, a rear compartment pull ring signal pin X67, and an overload signal pin X74. These pins are respectively used to electrically connect to the front compartment pull ring signal solder holes, rear compartment pull ring signal solder holes, and overload signal solder holes of the control module under test 10. The pins are electrically connected to the power supply 2 via a second rotary switch, and the first oscilloscope test hole 3 is connected in series between the second rotary switch and the power supply 2. In this embodiment, the functional pins and the corresponding solder holes of the control module under test 10 are plugged in to form an electrical connection.

[0038] Two output signal pins are connected. The second oscilloscope test hole 4 is electrically connected to one of the output signal pins X61, and the third oscilloscope test hole 5 is electrically connected to the other output signal pin X62. The oscilloscope displays the trigger waveform passing through the first oscilloscope test hole 3 through the first probe. The oscilloscope displays the positioning output waveform passing through the second oscilloscope test hole 4 through the second probe. The oscilloscope displays the detonation output waveform passing through the third oscilloscope test hole 5 through the third probe.

[0039] The test box 1 is equipped with a trigger switch 6, which is connected in series between the second rotary switch and the power supply interface of the test box 1. The second rotary switch is used to select one of the front compartment pull ring signal pin, the rear compartment pull ring signal pin, and the overload signal pin and connect it in series with the trigger switch 6. By opening the trigger switch 6 and adjusting the second rotary switch to select one of the pins to connect to the power supply, a voltage signal is provided to the corresponding functional weld hole of the control module 10 under test. The time difference between the trigger waveform and the positioning output waveform is compared, and the time difference between the trigger waveform and the detonation output waveform is compared.

[0040] The test box 1 also includes a wheel-mounted pin X29. A wheel-mounted switch 7 is connected in series between the wheel-mounted switch 7 and the power supply interface. The wheel-mounted pin is used for electrical connection to the wheel-mounted signal solder hole of the control module under test 10. After closing the wheel-mounted switch 7, a wheel-mounted signal is simulated. Then, after opening the trigger switch 6, the presence of a positioning output waveform and a detonation output waveform is detected. The absence of a positioning output waveform and a detonation output waveform indicates normal operation.

[0041] The test box 1 also includes two safety pins, X24 and X25, connected in series with a safety switch 8. These two safety pins are used for electrical connection to the solder holes of the safety unit of the control module under test 10. Closing the safety switch 8 short-circuits the safety unit, simulating a safety trigger signal. Then, by opening the trigger switch 6 and adjusting the second rotary switch, one of the pins is selected to provide a voltage signal to the corresponding functional solder hole of the control module under test 10. After triggering the safety signal, when providing a voltage signal to the corresponding functional solder hole, the presence of a positioning output waveform and a detonation output waveform is checked. There should be no positioning output waveform or detonation output waveform.

[0042] The test box 1 includes multiple voltage test pins, which are connected to the output voltage solder joints inside the module under test. The test box 1 is equipped with a voltmeter 23. The multiple voltage test pins are connected to the voltmeter 23 via a first rotary switch. The first rotary switch is used to select one of the multiple voltage test pins to connect to the voltmeter 23. The voltmeter 23 is used to detect the voltage between a single voltage test pin and ground. The voltage test pins are X21, X11, X27, X10, and X78.

[0043] The voltmeter 23 is a digital display voltmeter 23, and the digital display voltmeter 23 is integrated on the test box 1. The test box 1 is equipped with a voltage conversion module 21. The digital display voltmeter 23 is electrically connected to the power supply module through the voltage conversion module 21. The power supply module supplies 5V power to the voltmeter 23 through the voltage conversion module 21.

[0044] The test box 1 also includes two electronic load pins. The two electronic load pins are electrically connected to the two electrodes of the external load. The electronic load pins are used to electrically connect to the external load solder holes on the control module under test 10. One electronic load pin X14 is connected to the voltmeter 23 through the first rotary switch, and the other electronic load pin X16 is grounded. The electronic load pin is selected by the first rotary switch and connected to the voltmeter 23 to test the voltage of the driving load and determine whether the control module under test 10 can drive the load normally.

[0045] The power supply pins include a normal power supply pin X1 and an emergency power supply pin X3. The normal power supply pin and the emergency power supply pin are electrically connected to the power module through a power supply selection switch 9. The power supply selection switch 9 selects various tests of the control module under test 10 in normal power supply mode and emergency power supply mode.

[0046] In this embodiment, the first rotary switch and the second rotary switch are integrated together to form a multi-position double-layer rotary band switch 11.

[0047] like Figure 3 In this embodiment, the first layer switch corresponds to the first rotary switch. Specifically, pin s1-1 of the first layer switch is connected to one test pin of voltmeter 23, and the other test pin of voltmeter 23 is grounded; pin 1-2 is disconnected, corresponding to the unselected voltage test pin; pins 1-3, 1-4, 1-5, 1-7, and 1-8 are each connected to a voltage test pin, and pin 1-6 is connected to a load pin. The second layer switch corresponds to the second rotary switch. Pin s1-2 of the second layer switch, the first oscilloscope test hole 3, and the trigger switch 6 are connected in series. Pins 2-9 of the second layer switch are connected to the front compartment pull ring signal pin, pin 2-10 is connected to the rear compartment pull ring signal pin, and pin 2-11 is connected to the overload signal pin.

[0048] Each pin in this application is a spring pin, and the spring pin configuration can ensure stable contact between the pin and the solder hole.

[0049] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A testing device for a launch control module, characterized in that, It includes a test box and a power supply, wherein the power supply is electrically connected to the power supply interface on the test box, and the power supply provides power to the control module under test. The test box is provided with a first oscilloscope test hole, a second oscilloscope test hole and a third oscilloscope test hole, which are used to connect different probes of the oscilloscope. The test box is equipped with: Power supply pins are used to electrically connect to the power supply solder holes on the control module under test. The functional pins include a front compartment pull ring signal pin, a rear compartment pull ring signal pin, and an overload signal pin. The front compartment pull ring signal pin, the rear compartment pull ring signal pin, and the overload signal pin are respectively used to electrically connect with the front compartment pull ring signal solder hole, the rear compartment pull ring signal solder hole, and the overload signal solder hole of the control module under test. The front compartment pull ring signal pin, the rear compartment pull ring signal pin, and the overload signal pin are electrically connected to the power supply through a second rotary switch. The first oscilloscope test hole is connected in series between the second rotary switch and the power supply. Two output signal pins are connected to the second oscilloscope test hole and one of the output signal pins, and the third oscilloscope test hole is connected to the other output signal pin. The test box is equipped with a trigger switch, which is connected in series between the second rotary switch and the power supply interface of the test box. The second rotary switch is used to select one of the front compartment pull ring signal pin, the rear compartment pull ring signal pin, and the overload signal pin and connect it in series with the trigger switch.

2. The testing device for the throwing control module according to claim 1, characterized in that, The test box also includes wheel-mounted pins, and a wheel-mounted switch is connected in series between the wheel-mounted pins and the power supply interface. The wheel-mounted pins are used to electrically connect to the wheel-mounted signal solder hole of the control module under test.

3. The testing device for the throwing control module according to claim 1, characterized in that, The test box also includes two safety pins, with a safety switch connected in series between the two safety pins. The two safety pins are used to electrically connect to the solder holes of the safety unit of the control module under test.

4. The testing device for the throwing control module according to claim 1, characterized in that, The test box also includes multiple voltage test pins, which are connected to the output voltage solder holes inside the module under test. The test box is equipped with a voltmeter, and the multiple voltage test pins are connected to the voltmeter via a first rotary switch. The first rotary switch is used to select one of the multiple voltage test pins to connect to the voltmeter, and the voltmeter is used to detect the voltage between a single voltage test pin and ground.

5. The testing device for the throwing control module according to claim 4, characterized in that, The voltmeter is a digital display voltmeter, and the digital display voltmeter is integrated on the test box. The test box is equipped with a voltage conversion module, and the digital display voltmeter is electrically connected to the power supply module through the voltage conversion module.

6. The testing apparatus for the throwing control module according to claim 5, characterized in that, The test box also includes an electronic load pin, which is electrically connected to an external load. The electronic load pin is used to electrically connect to the external load solder hole on the control module under test. One of the electronic load pins is connected to the voltmeter through the first rotary switch.

7. The testing device for the throwing control module according to claim 1, characterized in that, The power supply pins include normal power supply pins and emergency power supply pins, which are electrically connected to the power module via a power selection switch.

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