A control converter initiation logic test device
By designing a test device for the detonation logic of the control converter, the testing process was simplified, efficiency and reliability were improved, the complexity and safety issues of testing in existing technologies were solved, and rapid testing by a single person was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI QIANSHAN AVIONICS
- Filing Date
- 2025-08-21
- Publication Date
- 2026-06-12
Smart Images
Figure CN224354754U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of avionics equipment testing, and in particular to a test apparatus for the detonation logic of a control converter. Background Technology
[0002] During normal helicopter flight, the emergency rescue positioning system collects relevant system data and records it in its internal data recording component. When the helicopter encounters distress, the emergency rescue positioning system detects water immersion signals, impact overload signals, or manual jettison signals. It then activates the positioning transceiver to separate from the helicopter. After detaching, the transceiver transmits beacon signals, spread spectrum signals, BeiDou signals, and flashing position signals, and records its drift trajectory data to guide search and rescue forces to the crash site. Therefore, the accuracy of the detonation logic test is extremely important. Due to the specific nature of the testing during the production process of the control converter, conventional testing requires the preparation of several connecting wires in advance, frequent wire insertion into the X1 and X2 pins of the control converter connector according to technical documents, and soldering wires to the jettison control module. This involves a large amount of testing equipment and requires three people to complete the test. This presents various problems such as complex test preparation, poor contact stability, and low testing efficiency, affecting production progress. Therefore, this testing device was invented to simplify the testing process, save testing time, improve work efficiency, and enhance the reliability and safety of the test. Utility Model Content
[0003] In view of this, this application provides a test device for the detonation logic of a control converter, which solves the problems in the prior art and improves the testing efficiency and reliability of the detonation logic of the control converter.
[0004] The control converter detonation logic testing device provided in this application adopts the following technical solution:
[0005] A test device for the detonation logic of a control converter includes: a power module, a test box, and connecting cables;
[0006] The test box is electrically connected to the electrical connector on the control converter under test via a connecting cable, and the power module supplies power to the control converter under test via the connecting cable.
[0007] The test box is equipped with multiple short-circuit switches and multiple output test holes;
[0008] The shorting switch is used to control the electrical connection of the two test pins of the electrical connector;
[0009] The output test port is connected via a connecting cable and a signal output pin on an electrical connector, and the output test port is used to connect an oscilloscope.
[0010] Optionally, the electrical connector is provided with a first immersion trigger signal input pin and a first immersion trigger signal output pin, and the test box is provided with a first immersion trigger signal input connection line and a first immersion trigger signal output connection line. One end of the first immersion trigger signal input connection line and the first immersion trigger signal input pin are electrically connected through a connection cable, and one end of the first immersion trigger signal output connection line and the first immersion trigger signal output pin are electrically connected through a connection cable.
[0011] The test box is equipped with a first short-circuit switch connected in series between the first immersion trigger signal input connection line and the first immersion trigger signal output connection line. The first short-circuit switch closes the first immersion trigger signal input pin and the first immersion trigger signal output pin to simulate the output signal of one of the immersion signal receiving units inside the control converter under test after the immersion sensor is immersed in water.
[0012] The test box is provided with a first water sensor signal test hole, a start positioning signal test hole, and a release signal test hole. The first water sensor signal test hole is connected to one of the immersion signal receiving units inside the control converter under test through a connecting cable and an electrical connector. The start positioning signal test hole is connected to the positioning unit inside the control converter under test through a connecting cable and an electrical connector. The release signal test hole is connected to the release unit inside the control converter under test through a connecting cable and an electrical connector.
[0013] Optionally, the electrical connector is provided with a second immersion trigger signal input pin and a second immersion trigger signal output pin, and the test box is provided with a second immersion trigger signal input connection line and a second immersion trigger signal output connection line. One end of the second immersion trigger signal input connection line and the second immersion trigger signal input pin are electrically connected through a connection cable, and one end of the second immersion trigger signal output connection line and the second immersion trigger signal output pin are electrically connected through a connection cable.
[0014] The test box is equipped with a second short-circuit switch connected in series between the second immersion trigger signal input connection line and the second immersion trigger signal output connection line. The second short-circuit switch closes the second immersion trigger signal input pin and the second immersion trigger signal output pin to simulate the output signal of another immersion signal receiving unit inside the control converter under test after the immersion sensor is immersed in water.
[0015] The test box is provided with a second water sensor signal test hole, which is connected to another immersion signal receiving unit inside the control converter under test through a connecting cable and an electrical connector.
[0016] Optionally, the socket on the control converter under test includes a water immersion test signal socket for the water immersion signal receiving unit to receive signals;
[0017] The electrical connector is provided with multiple first immersion trigger signal input pins, multiple first immersion trigger signal output pins, multiple second immersion trigger signal input pins, and multiple second immersion trigger signal output pins. Each first immersion trigger signal input pin, each first immersion trigger signal output pin, each second immersion trigger signal input pin, and each second immersion trigger signal output pin constitute a group of immersion trigger pins. Different groups of immersion trigger pins correspond to different immersion test signal jacks on the control converter under test.
[0018] The test box is equipped with multiple first shorting switches and multiple second shorting switches. Each first shorting switch and each second shorting switch constitute a shorting switch group. The number of shorting switch groups corresponds one-to-one with the number of immersion trigger pin groups.
[0019] The test box is provided with multiple first water sensor signal test holes, multiple second water sensor signal test holes, multiple start positioning signal test holes, and multiple throwing signal test holes. Each first water sensor signal test hole and each second water sensor signal test hole constitute a test hole group. Each test group of holes is electrically connected to two immersion signal receiving units inside different control converters under test. Different start positioning signal test holes are electrically connected to the positioning units inside different control converters under test. Different throwing signal test holes are connected to the throwing units inside different control converters under test.
[0020] Optionally, the test box is provided with markings corresponding to each first short-circuit switch, each second short-circuit switch, each first water sensor signal test hole, each second water sensor signal test hole, each start positioning signal test hole, and each throwing signal test hole.
[0021] Optionally, the test box is provided with a grounding socket, which is connected to the GND of the control converter under test through a connecting cable and an electrical connector. The grounding socket is used to connect to the GND of the oscilloscope.
[0022] Optionally, short-circuit the push-button switch or toggle switch.
[0023] In summary, this application includes the following beneficial technical effects:
[0024] The testing device of this application saves testing time and improves work efficiency. Because the operation method is simple and reliable, the entire testing process using this invention takes less than one minute, which is 10-15 times faster than traditional testing methods. Furthermore, while the original testing method required three people, using this invention, one person can easily complete the test.
[0025] This invention improves the reliability and safety of testing. When testing the detonation logic using this invention, the connector plug from the same manufacturer is directly connected to the product socket. Test points and input / output signals are all connected to the test box panel via wires. This eliminates the need for multimeter and oscilloscope probes to be connected to the module pins, avoiding damage to the pin holes from bending. It also avoids the risk of short circuits and abnormal contacts that can occur when pins come loose during traditional wired testing, and prevents potential product damage caused by human error. It is safe and reliable. Attached Figure Description
[0026] 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.
[0027] Figure 1 This is a schematic diagram of the test device of this application;
[0028] Figure 2 This is a schematic diagram of the test kit used in this application.
[0029] Explanation of reference numerals in the attached diagram: 1. Test box; 11. First short-circuit switch; 12. First water sensor signal test hole; 13. Start positioning signal test hole; 14. Throwing signal test hole; 15. Second short-circuit switch; 16. Second water sensor signal test hole; 17. Grounding socket; 2. Connecting cable; 3. Electrical connector; 4. Control converter. Detailed Implementation
[0030] The embodiments of this application will now be described in detail with reference to the accompanying drawings.
[0031] 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.
[0032] 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.
[0033] 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.
[0034] 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.
[0035] like Figure 1 and Figure 2 As shown in the figure, this application provides a test device for the detonation logic of a control converter.
[0036] A test device for the detonation logic of a control converter includes: a power module, a test box 1, and a connecting cable 2.
[0037] The test box 1 is electrically connected to the electrical connector 3 on the control converter under test 4 via the connecting cable 2, and the power module supplies power to the control converter under test 4 via the connecting cable 2.
[0038] The test box 1 is equipped with multiple short-circuit switches and multiple output test holes.
[0039] The shorting switch controls the electrical connection between the two test pins of the electrical connector 3. After the electrical connector 3 is plugged into the socket of the control converter under test (DCUTP) 4, the test pins are electrically connected to the corresponding test sockets on the DCUTP 4 socket. The test sockets on the DCUTP 4 socket are pre-designed sockets specifically for testing. The shorting switch simulates the input signal to the DCUTP 4. After receiving the signal, the corresponding module inside the DCUTP 4 executes the corresponding action and outputs a signal through the socket of the DCUTP 4 socket. By opening any shorting switch, the waveform of the corresponding output test hole is tested, and the time difference of the waveforms output from each output test hole is compared to see if it meets the design requirements.
[0040] The output test port is connected via a connecting cable 2 and a signal output pin on an electrical connector 3. This output test port is used to connect an oscilloscope. The signal output pin of the electrical connector 3 corresponds to the signal output jack on the control converter under test (DCUTP) 4. That is, by detecting the output signal of the corresponding jack on the DCUTP 4 socket after receiving a signal using an oscilloscope, the system can determine whether the corresponding module inside the DCUTP 4 is executing actions or sending signals according to correct logic. This application designs a test box 1 and an electrical connector 3 for the DCUTP 4. When performing logic tests on the DCUTP 4, only a shorting switch needs to be controlled.
[0041] The electrical connector 3 is provided with a first immersion trigger signal input pin and a first immersion trigger signal output pin. The first immersion trigger signal input pin and the first immersion trigger signal output pin are used to connect with the immersion test signal socket on the socket of the control converter under test 4 to form an electrical connection. The first immersion trigger signal input pin and the first immersion trigger signal output pin are the test pins mentioned above, and the immersion test signal socket is the socket on the socket of the control converter under test 4 that is dedicated to testing.
[0042] The test box 1 is equipped with a first immersion trigger signal input connection line and a first immersion trigger signal output connection line. One end of the first immersion trigger signal input connection line and the first immersion trigger signal input pin are electrically connected via a connecting cable 2, and one end of the first immersion trigger signal output connection line and the first immersion trigger signal output pin are electrically connected via a connecting cable 2. The test box 1 is equipped with a first short-circuit switch 11 connected in series between the first immersion trigger signal input connection line and the first immersion trigger signal output connection line. The first short-circuit switch 11 closes and shorts the first immersion trigger signal input pin and the first immersion trigger signal output pin to simulate the output signal of one of the immersion signal receiving units inside the control converter under test 4 after the immersion sensor is immersed in water, which serves as the immersion test signal of the control converter under test 4.
[0043] The test box 1 is provided with a first water sensor signal test hole 12, a start positioning signal test hole 13, and a release signal test hole 14. The first water sensor signal test hole 12 is connected to the input terminal of one of the immersion signal receiving units inside the control converter under test 4 through a connecting cable 2 and an electrical connector 3. The start positioning signal test hole 13 is connected to the positioning unit inside the control converter under test 4 through a connecting cable 2 and an electrical connector 3. The release signal test hole 14 is connected to the release unit inside the control converter under test 4 through a connecting cable 2 and an electrical connector 3.
[0044] After the water immersion sensor is immersed in water, it outputs a signal to the control converter under test 4. This application simulates the water immersion test signal of the control converter under test 4 by closing the short-circuit switch of the test box 1. When the water immersion signal receiving unit of the control converter under test 4 correctly receives the water immersion test signal, the water sensor signal test hole has a waveform output. After water immersion is detected, the positioner of the start recorder and the throw unit recorder are activated, and the corresponding start positioning signal test hole 13 and throw signal test hole 14 have waveform outputs. By analyzing and comparing the waveforms of each test hole, the time difference of each signal is obtained, which is used to verify the control converter under test 4. For example, by comparing the signal time difference of the first water sensor signal test hole 12 and the throw signal test hole 14, it is determined whether the time difference from detecting water immersion to starting throw meets the delay requirement. The signal time difference of the start positioning signal test hole 13 and the throw signal test hole 14 is used to determine whether the time difference between start positioning and start throw meets the delay requirement.
[0045] In order to test the response logic of another water immersion signal receiving unit inside the control converter 4 under test, the electrical connector 3 is provided with a second water immersion trigger signal input pin and a second water immersion trigger signal output pin. The test box 1 is provided with a second water immersion trigger signal input connection line and a second water immersion trigger signal output connection line. One end of the second water immersion trigger signal input connection line and the second water immersion trigger signal input pin are electrically connected through a connecting cable 2. One end of the second water immersion trigger signal output connection line and the second water immersion trigger signal output pin are electrically connected through a connecting cable 2.
[0046] The test box 1 is provided with a second shorting switch 15 connected in series between the second immersion trigger signal input connection line and the second immersion trigger signal output connection line. The second shorting switch 15 closes and shorts the second immersion trigger signal input pin and the second immersion trigger signal output pin to simulate the output signal of another immersion signal receiving unit inside the control converter 4 under test after the immersion sensor is immersed in water.
[0047] The test box 1 is provided with a second water sensor signal test hole 16, which is connected to the input terminal of another immersion signal receiving unit inside the control converter 4 under test through a connecting cable 2 and an electrical connector 3.
[0048] This application simulates the immersion test signal of the control converter under test 4 by closing the short-circuit switch of test box 1. When another immersion signal receiving unit of the control converter under test 4 correctly receives the immersion test signal, the water sensor signal test hole has a waveform output. After immersion is detected, the positioner of the start recorder and the throw unit in the recorder are launched, and the corresponding start positioning signal test hole 13 and throw signal test hole 14 have waveform outputs. By analyzing and comparing the waveforms of each test hole, the time difference of each signal is obtained, which is used to verify the control converter under test 4. For example, by comparing the signal time difference of the second water sensor signal test hole 16 and the throw signal test hole 14, it is determined whether the time difference from detecting immersion to starting throw meets the delay requirement. The signal time difference of the start positioning signal test hole 13 and the throw signal test hole 14 is used to determine whether the time difference between start positioning and start throw meets the delay requirement.
[0049] The socket on the control converter under test 4 includes a water immersion test signal socket for the water immersion signal receiving unit to receive signals.
[0050] To enable a single test box 1 to test different control converters 4, the electrical connector 3 is provided with multiple first immersion trigger signal input pins, multiple first immersion trigger signal output pins, multiple second immersion trigger signal input pins, and multiple second immersion trigger signal output pins. The positions of these pins are designed to correspond to the test sockets on different control converters 4. Each first immersion trigger signal input pin, each first immersion trigger signal output pin, each second immersion trigger signal input pin, and each second immersion trigger signal output pin constitutes a group of immersion trigger pins, and different groups of these pins correspond to different immersion test signal sockets on the control converter 4 under test. The test box 1 is provided with multiple first short-circuit switches 11 and multiple second short-circuit switches 15. Each first short-circuit switch 11 and each second short-circuit switch 15 constitutes a short-circuit switch group. The number of short-circuit switch groups corresponds one-to-one with the number of immersion trigger pin groups. The test box 1 is provided with multiple first water sensor signal test holes 12, multiple second water sensor signal test holes 16, multiple start positioning signal test holes 13, and multiple throwing signal test holes 14. Each first water sensor signal test hole 12 and each second water sensor signal test hole 16 constitutes a test hole group. Each test group hole is electrically connected to two immersion signal receiving units inside different tested control converters 4. Different start positioning signal test holes 13 are electrically connected to the positioning units inside different tested control converters 4. Different throwing signal test holes 14 are connected to the throwing units inside different tested control converters 4.
[0051] like Figure 2 In this embodiment, shorting X2 (16-17) and shorting X2 (26-27) are shorting switches corresponding to the other tested control converter 4, and X34 and X1-17 correspond to the first water sensor signal test hole 12 and the second water sensor signal test hole 16 of the other tested control converter 4.
[0052] The test box 1 is provided with a grounding socket 17, which is connected to the GND grounding terminal of the control converter 4 under test through the connecting cable 2 and the electrical connector 3. The grounding socket 17 is used to connect to the GND grounding terminal of the oscilloscope.
[0053] Short-circuit the push-button switch or toggle switch.
[0054] The test box 1 is marked with corresponding identifiers for each first short-circuit switch 11, each second short-circuit switch 15, each first water sensor signal test hole 12, each second water sensor signal test hole 16, each start positioning signal test hole 13, and each throwing signal test hole 14.
[0055] 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 test device for the detonation logic of a control converter, characterized in that, include: Power module, test box (1) and connecting cable (2); The test box (1) is electrically connected to the electrical connector (3) on the control converter under test (4) via the connecting cable (2), and the power supply module supplies power to the control converter under test (4) via the connecting cable (2); The test box (1) is equipped with multiple short-circuit switches and multiple output test holes; The shorting switch is used to control the electrical connection of the electrical connector (3) to the two test pins; The output test hole is connected via a connecting cable (2) and a signal output pin on an electrical connector (3), and the output test hole is used to connect an oscilloscope.
2. The control converter detonation logic testing device according to claim 1, characterized in that, The electrical connector (3) is provided with a first immersion trigger signal input pin and a first immersion trigger signal output pin. The test box (1) is provided with a first immersion trigger signal input connection line and a first immersion trigger signal output connection line. One end of the first immersion trigger signal input connection line and the first immersion trigger signal input pin are electrically connected through a connecting cable (2). One end of the first immersion trigger signal output connection line and the first immersion trigger signal output pin are electrically connected through a connecting cable (2). The test box (1) is provided with a first short-circuit switch (11) connected in series between the first immersion trigger signal input connection line and the first immersion trigger signal output connection line. The first short-circuit switch (11) closes the first immersion trigger signal input pin and the first immersion trigger signal output pin to simulate the output signal of the immersion sensor to one of the immersion signal receiving units inside the control converter (4) under test after immersion in water. The test box (1) is provided with a first water sensor signal test hole (12), a start positioning signal test hole (13), and a throwing signal test hole (14). The first water sensor signal test hole (12) is connected to one of the immersion signal receiving units inside the control converter (4) under test through a connecting cable (2) and an electrical connector (3). The start positioning signal test hole (13) is connected to the positioning unit inside the control converter (4) under test through a connecting cable (2) and an electrical connector (3). The throwing signal test hole (14) is connected to the throwing unit inside the control converter (4) under test through a connecting cable (2) and an electrical connector (3).
3. The control converter detonation logic testing device according to claim 2, characterized in that, The electrical connector (3) is provided with a second immersion trigger signal input pin and a second immersion trigger signal output pin. The test box (1) is provided with a second immersion trigger signal input connection line and a second immersion trigger signal output connection line. One end of the second immersion trigger signal input connection line and the second immersion trigger signal input pin are electrically connected through a connecting cable (2). One end of the second immersion trigger signal output connection line and the second immersion trigger signal output pin are electrically connected through a connecting cable (2). The test box (1) is provided with a second short-circuit switch (15) connected in series between the second immersion trigger signal input connection line and the second immersion trigger signal output connection line. The second short-circuit switch (15) closes the second immersion trigger signal input pin and the second immersion trigger signal output pin to simulate the output signal of another immersion signal receiving unit inside the control converter (4) after the immersion sensor is immersed in water. The test box (1) is provided with a second water sensor signal test hole (16), which is connected to another immersion signal receiving unit inside the control converter (4) under test through a connecting cable (2) and an electrical connector (3).
4. The control converter detonation logic testing device according to claim 1, characterized in that, The socket on the control converter under test (4) includes a water immersion test signal socket for the water immersion signal receiving unit to receive signals; The electrical connector (3) is provided with multiple first immersion trigger signal input pins, multiple first immersion trigger signal output pins, multiple second immersion trigger signal input pins, and multiple second immersion trigger signal output pins. Each first immersion trigger signal input pin, each first immersion trigger signal output pin, each second immersion trigger signal input pin, and each second immersion trigger signal output pin constitute a group of immersion trigger pins. Different groups of immersion trigger pins correspond to different immersion test signal jacks on the control converter (4) under test. The test box (1) is provided with multiple first short-circuit switches (11) and multiple second short-circuit switches (15). Each first short-circuit switch (11) and each second short-circuit switch (15) is a short-circuit switch group. The number of short-circuit switch groups corresponds one-to-one with the immersion trigger pin group. The test box (1) is provided with multiple first water sensor signal test holes (12), multiple second water sensor signal test holes (16), multiple start positioning signal test holes (13), and multiple throwing signal test holes (14). Each first water sensor signal test hole (12) and each second water sensor signal test hole (16) is a test hole group. Each test group hole is electrically connected to two immersion signal receiving units inside different tested control converters (4). Different start positioning signal test holes (13) are electrically connected to the positioning units inside different tested control converters (4). Different throwing signal test holes (14) are connected to the throwing units inside different tested control converters (4).
5. The control converter detonation logic testing device according to claim 4, characterized in that, The test box (1) is marked with corresponding identifiers for each first short-circuit switch (11), each second short-circuit switch (15), each first water sensor signal test hole (12), each second water sensor signal test hole (16), each start positioning signal test hole (13), and each throwing signal test hole (14).
6. The control converter detonation logic testing device according to claim 1, characterized in that, The test box (1) is provided with a grounding socket (17), which is connected to the GND of the control converter (4) under test through a connecting cable (2) and an electrical connector (3). The grounding socket (17) is used to connect to the GND of the oscilloscope.
7. The control converter detonation logic testing device according to claim 1, characterized in that, Short-circuit the push-button switch or toggle switch.