Airplane PSU test bench

Abstract

The utility model relates to an airplane PSU testboard, and belongs to the technical field of PSU testing. Comprising a test panel, a connector, a switch, an indicating lamp, a test hole, a signal generator and a power supply, a PCB is installed on the test panel, the connector, the switch, the indicating lamp and the test hole are all installed on the test panel, the connector, the switch, the indicating lamp and the test hole are all connected with the PCB, and the signal generator is connected with the PCB. The test hole is also connected with a signal generator, and the power supply supplies power to the test after voltage reduction of the transformer; the test board is convenient for testing, checking or troubleshooting the passenger service unit (PSU), ensures the normal use of the passenger service unit (PSU), ensures the flight service quality, and improves the flight experience of passengers.

Description

Technical Field

[0001] The utility model belongs to the technical field of PSU testing, and particularly relates to an aircraft PSU test bench. Background Technique

[0002] The Passenger Service Unit (PSU) in the cabin is an important unit that provides comfortable services for passengers during flight. It can provide services such as emergency oxygen supply, personal ventilation, reading lamp illumination, seat belt fastening and no-smoking information prompts, flight attendant call, and release of safety and entertainment audio-visual information. It is an important manifestation of cabin comfort. When in use, it is necessary to test the aircraft's PSU to check whether the passenger service components can work properly. Therefore, the utility model provides an aircraft PSU test bench to test the aircraft PSU. Summary of the Invention

[0003] In order to overcome the problems mentioned in the background technique, the utility model provides an aircraft PSU test bench. The test bench of the utility model is convenient for testing, inspecting or troubleshooting the passenger service components (PSU), ensuring the normal use of the passenger service components (PSU), guaranteeing the flight service quality, and improving the passenger flight experience.

[0004] To achieve the above object, the utility model is implemented by the following technical solutions: An aircraft PSU test bench includes a test panel 1, a connector 2, a switch 3, an indicator light 4, a test hole 5, a signal generator and a power supply. A PCB circuit board is installed on the test panel 1. The connector 2, the switch 3, the indicator light 4 and the test hole 5 are all installed on the test panel 1. The connector 2, the switch 3, the indicator light 4 and the test hole 5 are all connected to the PCB circuit board. The test hole 5 is also connected to a signal generator. The power supply supplies power to the test after being stepped down by a transformer.

[0005] Further, the power supply includes a 115VAC power supply and a 28VDC power supply, and the 115VAC power supply is connected to a transformer.

[0006] Further, the switch 3 includes a 115VAC switch 6, a 28VDC switch 7, a reading lamp switch 8, an NS / FSB switch 9, a motor switch 10, a component switch 11, a CHIME switch 12 and a CALL switch 13. The 115VAC switch 6, the 28VDC switch 7, the reading lamp switch 8, the NS / FSB switch 9, the motor switch 10, the component switch 11, the CHIME switch 12 and the CALL switch 13 are all installed on the test panel 1 and are connected to the PCB circuit board.

[0007] Further, the test holes 5 include a 115VAC power supply hole 14, a 28VDC power supply hole 15, and a signal generator connection hole 16. The 115VAC power supply hole 14, the 28VDC power supply hole 15, and the signal generator connection hole 16 are all installed on the test panel 1 and are connected to the PCB circuit board.

[0008] Further, the indicator lights 4 include a 28VDC power supply indicator light 17, a CHIME indicator light 18, and a CALL indicator light 19. The 28VDC power supply indicator light 17, the CHIME indicator light 18, and the CALL indicator light 19 are all installed on the test panel 1 and are connected to the PCB circuit board.

[0009] Advantages of the present utility model:

[0010] On the test panel of the present utility model, there are connectors, switches, indicator lights, and test holes. The test piece is connected to the test bench through the connector, which is convenient for testing the Passenger Service Unit (PSU). At the same time, a signal generator can be connected through the test hole to test the passenger address speaker; this test bench is convenient for testing, inspecting, or troubleshooting the Passenger Service Unit (PSU), ensuring the normal use of the Passenger Service Unit (PSU), guaranteeing the flight service quality, and improving the passenger flight experience. Description of the Drawings

[0011] Figure 1 It is a schematic structural diagram of the test panel of the present utility model.

[0012] Figure 2 It is a schematic diagram of the test circuit connection of the present utility model.

[0013] Reference Signs: In the figure, test panel 1, connector 2, switch 3, indicator light 4, test hole 5, 115VAC switch 6, 28VDC switch 7, reading lamp switch 8, NS / FSB switch 9, motor switch 10, component switch 11, CHIME switch 12, CALL switch 13, 115VAC power supply hole 14, 28VDC power supply hole 15, signal generator connection hole 16, 28VDC power supply indicator light 17, CHIME indicator light 18, CALL indicator light 19. Detailed Embodiment

[0014] In order to make the purpose, technical solution, and advantages of the present utility model clearer, the preferred embodiments of the present utility model will be described in detail below with reference to the drawings for the convenience of those skilled in the art to understand.

[0015] Such as Figure 1-2, the present utility model discloses an aircraft PSU test bench. The aircraft PSU test bench includes a test panel 1, a connector 2, a switch 3, an indicator light 4, a test hole 5, a signal generator and a power supply. A PCB circuit board is installed on the test panel 1. The connector 2, the switch 3, the indicator light 4 and the test hole 5 are all installed on the test panel 1. The connector 2, the switch 3, the indicator light 4 and the test hole 5 are all connected to the PCB circuit board. The test hole 5 is also connected to a signal generator. The power supply is stepped down by a transformer for test power supply. The power supply includes a 115VAC power supply and a 28VDC power supply. The 115VAC power supply is connected to a transformer T1. After the 115VAC power supply is converted to 28VAC through the transformer T1, it supplies power to the test piece (i.e., the passenger service unit). The test bench is connected to the test piece connector P4 through the connector J1. Among them, the J1-6 and J1-8 pins of the connector J1 are connected to the P4-6 and P4-8 pins of the test piece connector P4 to provide 28VAC power for the reading light of the test piece and test the function of the reading light of the test piece. The J1-7 and J1-8 pins of the connector J1 are connected to the P4-7 and P4-8 pins of the test piece connector P4 to provide 28VAC power for the NO SMOKING indicator light of the test piece and test the function of the NO SMOKING indicator light of the test piece. The J1-1 and J1-8 pins of the connector J1 are connected to the P4-1 and P4-8 pins of the test piece connector P4 to provide 28VAC power for the FASTEN SEAT BELT indicator light of the test piece and test the function of the FASTEN SEAT BELT indicator light of the test piece. The J1-11 and J1-10 pins of the connector J1 are connected to the P4-11 and P4-10 pins of the test piece connector P4 to provide 28VDC power for the motor of the test piece and test the function of the motor of the test piece. The J1-5 and J1-10 of the connector J1 are connected to the P4-5 and J1-10 pins of the test piece connector P4 to provide 28VDC power for the test piece. The J1-2, J1-3, and J1-4 pins of the connector J1 are connected to the P4-2, P4-3, and P4-4 of the test piece connector P4 to test the service call function of the test piece. Connectors, switches, indicator lights and test holes are provided on the test panel. The test piece is connected to the test bench through the connector, which is convenient for testing the passenger service unit (PSU). At the same time, a signal generator can be connected through the test hole to test the passenger address speaker.

[0016] The described switch 3 includes a 115VAC switch 6, a 28VDC switch 7, a reading lamp switch 8, an NS / FSB switch 9, a motor switch 10, a component switch 11, a CHIME switch 12, and a CALL switch 13. The 115VAC switch 6, 28VDC switch 7, reading lamp switch 8, NS / FSB switch 9, motor switch 10, component switch 11, CHIME switch 12, and CALL switch 13 are all installed on the test panel 1 and are connected to the PCB circuit board. When the 115VAC power switch is turned on, the power is connected, providing 115VAC power for the test bench, which is converted to 28VAC through a transformer to supply power to the components. The 28VDC switch, reading lamp switch, NS / FSB switch, motor switch, and component switch are power switches. When the 115VAC power switch is turned on, setting the reading lamp switch to the upper position provides 28VAC power for the reading lamp of the test piece; setting the NS / FSB switch to the lower position provides 28VAC power for the FASTEN SEAT BELT indicator of the test piece, and setting it to the upper position provides 28VAC power for the NOSMOKING indicator. When the 28VDC switch is set to the upper position and the motor switch is set to the upper position, 28VDC power is provided for the motor of the test piece, and when the component switch is set to the upper position, 28VDC power is provided for the components. The CALL switch and CHIME switch are used for component service call testing.

[0017] The described test holes 5 include a 115VAC power hole 14, a 28VDC power hole 15, and a signal generator connection hole 16. The 115VAC power hole 14, 28VDC power hole 15, and signal generator connection hole 16 are all installed on the test panel 1 and are connected to the PCB circuit board. Connect the 115VAC / 400Hz power supply to the 115VAC power hole of the test bench, connect the 28VDC power supply to the 28VDC power hole of the test hole and "DC GND" to provide power for the test. Connect the signal generator to the signal generator connection hole (i.e., the "Generator (+)" and "Generator (-)" test holes on the test panel). The signal generator provides a 400Hz signal for the components to test the passenger address speaker of the components.

[0018] The described indicator lights 4 include a 28VDC power indicator light 17, a CHIME indicator light 18, and a CALL indicator light 19. The 28VDC power indicator light 17, CHIME indicator light 18, and CALL indicator light 19 are all installed on the test panel 1 and are connected to the PCB circuit board. When the 28VDC power indicator light is lit, it indicates that the power is connected; the CHIME indicator light and CALL indicator light are used for indication during component service call testing.

[0019] Working process:

[0020] The working principle of the utility model is as follows: The test bench is connected to the test piece connector P4 through the connector J1. Among them, the pins J1-6 and J1-8 of the connector J1 are connected to the pins P4-6 and P4-8 of the test piece connector P4 to provide 28VAC power for the reading lamp of the test piece and test the function of the reading lamp of the test piece; the pins J1-7 and J1-8 of the connector J1 are connected to the pins P4-7 and P4-8 of the test piece connector P4 to provide 28VAC power for the NO SMOKING indicator light of the test piece and test the function of the NO SMOKING indicator light of the test piece; the pins J1-1 and J1-8 of the connector J1 are connected to the pins P4-1 and P4-8 of the test piece connector P4 to provide 28VAC power for the FASTEN SEAT BELT indicator light of the machine part and test the function of the FASTEN SEAT BELT indicator light of the test piece; the pins J1-11 and J1-10 of the connector J1 are connected to the pins P4-11 and P4-10 of the test piece connector P4 to provide 28VDC power for the motor of the test piece and test the function of the motor of the test piece; the pins J1-5 and J1-10 of the connector J1 are connected to the pins P4-5 and J1-10 of the test piece connector P4 to provide 28VDC power for the machine part, and the pins J1-2, J1-3, and J1-4 of the connector J1 are connected to the P4-2, P4-3, and P4-4 of the test piece connector P4 to test the service call function of the machine part; Connect the signal generator to the signal generator connection holes (i.e., the "Generator (+)" and "Generator (-)" test holes on the test panel). The signal generator provides a 400Hz signal for the machine part to test the passenger address speaker of the machine part.

[0021] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. An aircraft PSU test bench, characterized in that: The described aircraft PSU test bench includes a test panel (1), a connector (2), a switch (3), an indicator light (4), a test hole (5), a signal generator, and a power supply. A PCB circuit board is installed on the test panel (1). The connector (2), the switch (3), the indicator light (4), and the test hole (5) are all installed on the test panel (1). The connector (2), the switch (3), the indicator light (4), and the test hole (5) are all connected to the PCB circuit board. The test hole (5) is also connected to a signal generator. The power supply is stepped down by a transformer for test power supply.

2. The aircraft PSU test bench according to claim 1, characterized in that: The power supply includes a 115VAC power supply and a 28VDC power supply. The 115VAC power supply is connected to a transformer.

3. The aircraft PSU test bench according to claim 1, characterized in that: The switch (3) includes a 115VAC switch (6), a 28VDC switch (7), a reading lamp switch (8), an NS / FSB switch (9), a motor switch (10), a component switch (11), a CHIME switch (12), and a CALL switch (13). The 115VAC switch (6), the 28VDC switch (7), the reading lamp switch (8), the NS / FSB switch (9), the motor switch (10), the component switch (11), the CHIME switch (12), and the CALL switch (13) are all installed on the test panel (1) and are connected to the PCB circuit board.

4. The aircraft PSU test bench according to claim 1, characterized in that: The test hole (5) includes a 115VAC power supply hole (14), a 28VDC power supply hole (15), and a signal generator connection hole (16). The 115VAC power supply hole (14), the 28VDC power supply hole (15), and the signal generator connection hole (16) are all installed on the test panel (1) and are connected to the PCB circuit board.

5. The aircraft PSU test bench according to claim 1, characterized in that: The indicator light (4) includes a 28VDC power supply indicator light (17), a CHIME indicator light (18), and a CALL indicator light (19). The 28VDC power supply indicator light (17), the CHIME indicator light (18), and the CALL indicator light (19) are all installed on the test panel (1) and are connected to the PCB circuit board.

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