LED primary warning driving conversion electrical control circuit

Abstract

The application discloses an LED main warning drive conversion electrical control circuit, which comprises a first main warning relay, a second main warning relay, a first main warning relay, a multifunctional display, a right display, a left display, a first main warning light, a first main warning light, a second main warning light and a second main warning light. The application adopts LED warning lights and warning lights, changes the electrical interface into a rubber connector, and the plurality of warning signal output devices have a plurality of signal safety margins; the main warning light is added, which is more conducive to the pilot to find the indication information of the attention level.

Description

Technical Field

[0001] This invention relates to the field of aircraft alarm technology, and more specifically to an LED main alarm drive switching electrical control circuit. Background Technology

[0002] The existing main warning electrical control system on aircraft has a relatively simple structure, which has the following drawbacks in use:

[0003] It has low reliability; uneven light emission; soldered electrical interfaces, making disassembly and assembly inconvenient; no backup main alarm signal output device; and no main warning light for the pilot. Summary of the Invention

[0004] The purpose of this invention is to provide an LED main alarm drive switching electrical control circuit to solve the problems of low reliability in existing technologies.

[0005] To achieve the above objectives, the present invention employs the following technical solution:

[0006] An LED main alarm drive switching electrical control circuit includes a first main warning relay, a first main alert relay, a second main warning relay, a second main alert relay, a multi-function display, a right display, a left display, a first main warning light, a first main alert light, a second main alert light, and a second main warning light, wherein:

[0007] The switching terminal of the first main warning relay is connected to the second terminal of the second main warning relay. The switching terminal of the second main warning relay is connected to the warning drive circuit of the first main warning light and the second main warning light. The first terminal of the first main warning relay is connected to the warning drive interface of the right display. The first terminal of the second main warning relay is connected to the warning drive interface of the left display. The second terminal of the first main warning relay is connected to the warning drive interface of the multi-function display. The positive terminal of the coil of the first main warning relay is connected to the power supply, and the negative terminal of the coil is connected to the negative terminal of the coil of the first main warning relay and the decision interface of the right display. The positive terminal of the coil of the second main warning relay is connected to the power supply, and the negative terminal of the coil is connected to the negative terminal of the coil of the second main warning relay and the decision interface of the left display.

[0008] The switching terminal of the first main warning relay is connected to the second terminal of the second main warning relay. The switching terminal of the second main warning relay is connected to the warning drive circuit of the first and second main warning lights. The first terminal of the first main warning relay is connected to the warning drive interface of the right display, and the first terminal of the second main warning relay is connected to the warning drive interface of the left display. The second terminal of the first main warning relay is connected to the warning drive interface of the multifunction display. The positive terminal of the coil of the first main warning relay is connected to the power supply, and the positive terminal of the coil of the second main warning relay is also connected to the power supply.

[0009] The warning deactivation interfaces of the left display, right display, and multifunction display are all connected to the warning deactivation circuits of the first and second main warning lights; the warning deactivation interfaces of the left display, right display, and multifunction display are all connected to the warning deactivation circuits of the first and second main warning lights.

[0010] Furthermore, the first main warning relay, the first main alert relay, the second main warning relay, and the second main alert relay have the same structure, all including a coil, a switching terminal controlled by the coil, and a first terminal and a second terminal. The switching terminal can be switched between the first terminal and the second terminal by switching the current on and off the coil.

[0011] Furthermore, both the first and second main warning lights are equipped with a warning drive circuit and a warning deactivation circuit, which are used to drive the first and second main warning lights into warning display mode and deactivate the warning display mode, respectively.

[0012] Furthermore, both the first and second main warning lights are equipped with a warning drive circuit and a warning deactivation circuit, which are used to drive the first and second main warning lights into alarm display mode and deactivate alarm display mode, respectively.

[0013] Furthermore, the left and right displays have the same structure and function. Taking the left display as an example, it includes an alert drive interface, a decision interface, a warning drive interface, a warning cancellation interface, and an alert cancellation interface. The alert drive interface and the warning drive interface are used to output alert drive signals and warning drive signals to the outside, respectively. The decision interface outputs signals of different levels to control the relay coil. The alarm cancellation interface and the alert cancellation interface are used to output alarm cancellation signals and warning cancellation signals to the outside, respectively.

[0014] Furthermore, the structure and function of the multi-function display are basically the same as those of the left display, the only difference being that the multi-function display does not have a decision interface.

[0015] Furthermore, the first main warning light, the first main alert light, the second main alert light, and the second main warning light all use LED lights, and all LED lights use rubber connectors for their electrical interfaces.

[0016] Furthermore, when the left monitor, right monitor, and multifunction monitor are in normal operation:

[0017] When the decision interface of the left display outputs a low level, the coil of the second main warning relay is energized. At this time, the switching terminal of the second main warning relay is connected to the first terminal, and the left display provides warning drive signals to the first main warning light and the second main warning light.

[0018] When the decision interface of the left display outputs a low level, the coil of the second main warning relay is energized, and the switching terminal of the second main warning relay is connected to the first terminal. Then, the left display provides warning drive signals to the first and second main warning lights.

[0019] Furthermore, when the left display is in a fault state:

[0020] When the decision interface of the left display is left floating, the coil of the second main warning relay is disconnected. At this time, the switching terminal of the second main warning relay is connected to the second terminal. Meanwhile, because the decision interface of the right display outputs a low level, the switching terminal of the first main warning relay is connected to the first terminal. Thus, the right display provides warning drive signals to the first and second main warning lights.

[0021] When the decision interface of the left display is left floating, the coil of the second main warning relay is disconnected. At this time, the switching terminal of the second main warning relay is connected to the second terminal. Simultaneously, because the decision interface of the right display outputs a low level, the switching terminal of the first main warning relay is connected to the first terminal. Thus, the right display provides warning drive signals to the first and second main warning lights.

[0022] Furthermore, when both the left and right displays are in a fault state:

[0023] When the decision interface of the left display is left floating, the coil of the second main warning relay is disconnected. At this time, the switching terminal of the second main warning relay is connected to the second terminal. Meanwhile, because the decision interface of the right display is left floating, the coil of the first main warning relay is disconnected, and the switching terminal of the first main warning relay is connected to the second terminal. Thus, the multi-function display provides warning drive signals to the first main warning light and the second main warning light.

[0024] When the decision interface of the left display is left floating, the coil of the second main warning relay is disconnected. At this time, the switching terminal of the second main warning relay is connected to the second terminal. Simultaneously, because the decision interface of the right display is left floating, the coil of the first main warning relay is disconnected, and the switching terminal of the first main warning relay is connected to the second terminal. Thus, the multifunction display provides warning drive signals to the first and second main warning lights.

[0025] Compared with the prior art, the present invention has the following technical features:

[0026] 1. LED warning lights emit light evenly, while bulb-type warning lights have a noticeable brightness in the middle, making them difficult to see;

[0027] 2. The electrical interface has been changed to a rubber connector for easier assembly and disassembly.

[0028] 3. Multiple alarm signal output devices.

[0029] 4. The addition of a main warning light makes it easier for pilots to detect attention level indications. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the circuit structure of the present invention. Detailed Implementation

[0031] Referring to the accompanying drawings, the present invention provides an LED main alarm drive switching electrical control circuit, including a first main warning relay 1, a first main warning relay 2, a second main warning relay 3, a second main warning relay 4, a multi-function display 5, a right display 6, a left display 7, a first main warning light 8, a first main warning light 9, a second main warning light 10, and a second main warning light 11, wherein:

[0032] To reduce power consumption and improve the reliability of the warning lights, the first main warning light 8, the first main warning light 9, the second main warning light 10, and the second main warning light 11 all use LED lights, and all LED lights use rubber connectors for easy connection.

[0033] The warning drive, alert drive, alert deactivation, and warning deactivation drive signals in this solution can be provided by three displays: the multi-function display 5, the right display 6, and the left display 7. This provides redundancy for the alarm and alert signal drive and avoids the problem of signals not being output in a timely manner due to the failure of a single display.

[0034] Referring to the attached diagram, the first main warning relay 1, the first main warning relay 2, the second main warning relay 3, and the second main warning relay 4 have the same structure, each including a coil, a switching terminal controlled by the coil, and a first terminal and a second terminal (as shown in the attached diagram). Figure 1 Taking the first main warning relay 1 as an example, its three terminals numbered 1, 2, and 3 refer to the first terminal, the switching terminal, and the second terminal, respectively. The switching terminal can be switched between the first terminal and the second terminal by switching the current on and off of the coil.

[0035] Both the first main warning light 8 and the second main warning light 11 are equipped with a warning driving circuit and a warning deactivation circuit, which are used to drive the first main warning light 8 and the second main warning light 11 into warning display mode (e.g., high brightness, flashing, color change, etc.) and deactivate the warning display mode, respectively.

[0036] Both the first main warning light 9 and the second main warning light 10 are equipped with a warning drive circuit and a warning cancellation circuit, which are used to drive the first main warning light 9 and the second main warning light 10 into alarm display mode (e.g., high brightness, flashing, color change, etc.) and cancel the alarm display mode, respectively.

[0037] The left display 7 and the right display 6 have the same structure and function. Taking the left display 7 as an example, it includes an alert drive interface, a decision interface, a warning drive interface, a warning cancellation interface, and an alert cancellation interface. Specifically: the alert drive interface and the warning drive interface are used to output alert drive signals and warning drive signals, respectively; the decision interface outputs signals of different levels to control the relay coil; the alarm cancellation interface and the alert cancellation interface are used to output alarm cancellation signals and warning cancellation signals, respectively. For ease of integration and connection, the left display 7 integrates two J2 connectors. One J2 connector houses the alert drive interface, the decision interface, and the warning drive interface, while the other J2 connector houses the warning cancellation interface and the alert cancellation interface.

[0038] The structure and function of the multi-function display 5 are basically the same as those of the left display 7, the only difference being that the multi-function display 5 does not have a decision interface.

[0039] in:

[0040] The switching terminal of the first main warning relay 1 is connected to the second terminal of the second main warning relay 3. The switching terminal of the second main warning relay 3 is connected to the warning drive circuit of the first main warning light 8 and the second main warning light 11. The first terminal of the first main warning relay 1 is connected to the warning drive interface of the right display 6. The first terminal of the second main warning relay 3 is connected to the warning drive interface of the left display 7. The second terminal of the first main warning relay 1 is connected to the warning drive interface of the multi-function display. The positive terminal of the coil of the first main warning relay 1 is connected to a 28V power supply, and the negative terminal of the coil is connected to the negative terminal of the coil of the first main warning relay 2 and the decision interface of the right display 6. The positive terminal of the coil of the second main warning relay 3 is connected to a 28V power supply, and the negative terminal of the coil is connected to the negative terminal of the coil of the second main warning relay 4 and the decision interface of the left display 7.

[0041] The switching terminal of the first main warning relay 2 is connected to the second terminal of the second main warning relay 4. The switching terminal of the second main warning relay 4 is connected to the warning drive circuit of the first main warning light 9 and the second main warning light 10. The first terminal of the first main warning relay 2 is connected to the warning drive interface of the right display 6. The first terminal of the second main warning relay 4 is connected to the warning drive interface of the left display 7. The second terminal of the first main warning relay 2 is connected to the warning drive interface of the multi-function display. The positive terminal of the coil of the first main warning relay 2 is connected to a 28V power supply. The positive terminal of the coil of the second main warning relay 4 is also connected to a 28V power supply.

[0042] The warning deactivation interfaces of the left display 7, the right display 6, and the multi-function display 5 are all connected to the warning deactivation circuits of the first main warning light 8 and the second main warning light 11; the warning deactivation interfaces of the left display 7, the right display 6, and the multi-function display 5 are all connected to the warning deactivation circuits of the first main warning light 9 and the second main warning light 10.

[0043] 1. When the left monitor 7, right monitor 6, and multifunction monitor 5 are in normal working order...

[0044] When the decision interface of the left display 7 outputs a low level, the coil of the second main warning relay 4 is energized. At this time, the switching terminal of the second main warning relay 4 is connected to the first terminal, and the left display 7 provides a warning drive signal to the first main warning light 9 and the second main warning light 10.

[0045] When the decision interface of the left display 7 outputs a low level, the coil of the second main warning relay 3 is energized, and the switching terminal of the second main warning relay 3 is connected to the first terminal. Then, the left display 7 provides warning drive signals to the first main warning light 8 and the second main warning light 11.

[0046] 2. When the left display is malfunctioning

[0047] The decision interface of the left display 7 is left floating, and the coil of the second main warning relay 4 is disconnected. At this time, the switching terminal of the second main warning relay 4 is connected to the second terminal. At the same time, because the decision interface of the right display 6 outputs a low level, the switching terminal of the first main warning relay 2 is connected to the first terminal. Thus, the right display 6 provides warning drive signals to the first main warning light 9 and the second main warning light 10.

[0048] The decision interface of the left display is left floating, and the coil of the second main warning relay 3 is disconnected. At this time, the switching terminal of the second main warning relay 3 is connected to the second terminal. At the same time, because the decision interface of the right display 6 outputs a low level, the switching terminal of the first main warning relay 1 is connected to the first terminal. Thus, the right display 6 provides warning drive signals to the first main warning light 8 and the second main warning light 11.

[0049] 3. When both the left monitor (7) and the right monitor (6) are in a fault state.

[0050] When the decision interface of the left display 7 is left floating, the coil of the second main warning relay 4 is disconnected. At this time, the switching terminal of the second main warning relay 4 is connected to the second terminal. Meanwhile, because the decision interface of the right display 6 is left floating, the coil of the first main warning relay 2 is disconnected, and the switching terminal of the first main warning relay 2 is connected to the second terminal. Thus, the multi-function display 5 provides warning drive signals to the first main warning light 9 and the second main warning light 10.

[0051] When the decision interface of the left display 7 is left floating, the coil of the second main warning relay 3 is disconnected. At this time, the switching terminal of the second main warning relay 3 is connected to the second terminal. Meanwhile, because the decision interface of the right display 6 is left floating, the coil of the first main warning relay 1 is disconnected, and the switching terminal of the first main warning relay 1 is connected to the second terminal. Thus, the multi-function display 5 provides warning drive signals to the first main warning light 8 and the second main warning light 11.

[0052] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. An LED main alarm drive switching electrical control circuit, characterized in that, Includes a first main warning relay (1), a first main warning relay (2), a second main warning relay (3), a second main warning relay (4), a multi-function display (5), a right display (6), a left display (7), a first main warning light (8), a first main warning light (9), a second main warning light (10), and a second main warning light (11), wherein: The switching terminal of the first main warning relay (1) is connected to the second terminal of the second main warning relay (3). The switching terminal of the second main warning relay (3) is connected to the warning drive circuit of the first main warning light (8) and the second main warning light (11). The first terminal of the first main warning relay (1) is connected to the warning drive interface of the right display (6). The first terminal of the second main warning relay (3) is connected to the warning drive interface of the left display (7). The second terminal of the first main warning relay (1) is connected to the warning drive interface of the multi-function display. The positive terminal of the coil of the first main warning relay (1) is connected to the power supply. The negative terminal of the coil is connected to the negative terminal of the coil of the first main warning relay (2) and the decision interface of the right display (6). The positive terminal of the coil of the second main warning relay (3) is connected to the power supply. The negative terminal of the coil is connected to the negative terminal of the coil of the second main warning relay (4) and the decision interface of the left display (7). The switching terminal of the first main warning relay (2) is connected to the second terminal of the second main warning relay (4), and the switching terminal of the second main warning relay (4) is connected to the warning drive circuit of the first main warning light (9) and the second main warning light (10); the first terminal of the first main warning relay (2) is connected to the warning drive interface of the right display (6), and the first terminal of the second main warning relay (4) is connected to the warning drive interface of the left display (7); the second terminal of the first main warning relay (2) is connected to the warning drive interface of the multi-function display; the positive terminal of the coil of the first main warning relay (2) is connected to the power supply, and the positive terminal of the coil of the second main warning relay (4) is connected to the power supply. The warning deactivation interfaces of the left display (7), right display (6) and multifunction display (5) are all connected to the warning deactivation circuits of the first main warning light (8) and the second main warning light (11); the warning deactivation interfaces of the left display (7), right display (6) and multifunction display (5) are all connected to the warning deactivation circuits of the first main warning light (9) and the second main warning light (10).

2. The LED main alarm drive conversion electrical control circuit according to claim 1, characterized in that, The first main warning relay (1), the first main warning relay (2), the second main warning relay (3), and the second main warning relay (4) have the same structure. They all include a coil, a switching terminal controlled by the coil, a first terminal and a second terminal. The switching terminal can be switched between the first terminal and the second terminal by switching the current through the coil.

3. The LED main alarm drive conversion electrical control circuit according to claim 1, characterized in that, The first main warning light (8) and the second main warning light (11) are each equipped with a warning driving circuit and a warning deactivation circuit, which are used to drive the first main warning light (8) and the second main warning light (11) to be in warning display mode and deactivate warning display mode, respectively.

4. The LED main alarm drive switching electrical control circuit according to claim 1, characterized in that, Both the first main warning light (9) and the second main warning light (10) are equipped with a warning drive circuit and a warning cancellation circuit, which are used to drive the first main warning light (9) and the second main warning light (10) to be in alarm display mode and to cancel alarm display mode, respectively.

5. The LED main alarm drive switching electrical control circuit according to claim 1, characterized in that, The left display (7) and the right display (6) have the same structure and function. Taking the left display (7) as an example, it includes an alarm drive interface, a decision interface, an alarm drive interface, an alarm cancellation interface and an alarm cancellation interface. The alarm drive interface and the alarm drive interface are used to output alarm drive signals and alarm drive signals to the outside, respectively. The decision interface outputs different level signals to control the relay coil. The alarm cancellation interface and the alarm cancellation interface are used to output alarm cancellation signals and alarm cancellation signals to the outside, respectively.

6. The LED main alarm drive switching electrical control circuit according to claim 1, characterized in that, The structure and function of the multi-function display (5) are basically the same as those of the left display (7), the only difference being that the multi-function display (5) does not have a decision interface.

7. The LED main alarm drive conversion electrical control circuit according to claim 1, characterized in that, The first main warning light (8), the first main warning light (9), the second main warning light (10) and the second main warning light (11) are all LED lights, and all LED lights use rubber connectors for their electrical interfaces.

8. The LED main alarm drive switching electrical control circuit according to claim 1, characterized in that, When the left display (7), right display (6), and multifunction display (5) are in normal working order: When the decision interface of the left display (7) outputs a low level, the coil of the second main warning relay (4) is energized. At this time, the switching terminal of the second main warning relay (4) is connected to the first terminal, and the left display (7) provides a warning drive signal to the first main warning light (9) and the second main warning light (10). When the decision interface of the left display (7) outputs a low level, the coil of the second main warning relay (3) is energized, and the switching terminal of the second main warning relay (3) is connected to the first terminal. Then the left display (7) provides warning drive signals to the first main warning light (8) and the second main warning light (11).

9. The LED main alarm drive conversion electrical control circuit according to claim 1, characterized in that, When the left display is malfunctioning: The decision interface of the left display (7) is left floating, the coil of the second main warning relay (4) is disconnected, and at this time the switching terminal of the second main warning relay (4) is connected to the second terminal. At the same time, because the decision interface of the right display (6) outputs a low level, the switching terminal of the first main warning relay (2) is connected to the first terminal. Then the right display (6) provides a warning drive signal for the first main warning light (9) and the second main warning light (10). The decision interface of the left display is left floating, and the coil of the second main warning relay (3) is disconnected. At this time, the switching terminal of the second main warning relay (3) is connected to the second terminal. Meanwhile, because the decision interface of the right display (6) outputs a low level, the switching terminal of the first main warning relay (1) is connected to the first terminal. Then the right display (6) provides warning drive signals for the first main warning light (8) and the second main warning light (11).

10. The LED main alarm drive switching electrical control circuit according to claim 1, characterized in that, When both the left display (7) and the right display (6) are in a fault state: When the decision interface of the left display (7) is left unconnected, the coil of the second main warning relay (4) is disconnected. At this time, the switching terminal of the second main warning relay (4) is connected to the second terminal. Meanwhile, because the decision interface of the right display (6) is left unconnected, the coil of the first main warning relay (2) is disconnected. The switching terminal of the first main warning relay (2) is connected to the second terminal. Then the multi-function display (5) provides warning drive signals to the first main warning light (9) and the second main warning light (10). When the decision interface of the left display (7) is left unconnected, the coil of the second main warning relay (3) is disconnected. At this time, the switching terminal of the second main warning relay (3) is connected to the second terminal. Meanwhile, because the decision interface of the right display (6) is left unconnected, the coil of the first main warning relay (1) is disconnected. The switching terminal of the first main warning relay (1) is connected to the second terminal. Thus, the multifunction display (5) provides warning drive signals to the first main warning light (8) and the second main warning light (11).

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