CN218569907U - Aircraft illumination conversion relay board - Google Patents
Aircraft illumination conversion relay board Download PDFInfo
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- CN218569907U CN218569907U CN202222688184.8U CN202222688184U CN218569907U CN 218569907 U CN218569907 U CN 218569907U CN 202222688184 U CN202222688184 U CN 202222688184U CN 218569907 U CN218569907 U CN 218569907U
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Abstract
The application belongs to the technical field of airplane power distribution system design, and relates to an airplane illumination conversion relay board which comprises a sheet metal part, an electromagnetic relay and an electric connector; the electromagnetic relays are two groups and are arranged on the sheet metal part, the mounting angle piece is provided with a flanging, the electric connector is mounted on the flanging, and the electromagnetic relays are connected with the electric connector; in a normal power supply mode, because the direct current main bus bar line is connected with the normally-open point of the relay, and the relay coil is controlled by corresponding direct current normally, the bus bar where the solid-state secondary power distribution device is located is supplied with power by the on-board direct current main bus bar; in the ground maintenance mode, the DC main bus bar is free of electricity, and the bus bar where the solid-state secondary power distribution device is located is powered by the DC ground service bus bar. The switching power supply to the solid-state secondary power distribution device in different working modes is realized, the problem of inconvenience in use of main lighting in a ground maintenance mode is solved, and the principle of electrifying the electrical equipment in the minimum range in the ground maintenance mode is met.
Description
Technical Field
The application belongs to the technical field of aircraft power distribution system design, and particularly relates to an aircraft lighting conversion relay board.
Background
In a large and medium aircraft power supply system, alternating current electric energy provided by an alternating current generator or an external power supply in a normal power supply mode is transmitted to an alternating current main bus bar in an aircraft power grid, and then converted into low-voltage direct current through a transformer rectifier and transmitted to a direct current main bus bar in a direct current distribution box. The direct current main bus bar supplies power to each low-voltage direct current load of the airplane through the solid-state secondary power distribution device, and the electric energy required by the main illumination of the airplane is from the solid-state secondary power distribution device. Therefore, the bus bar for supplying power to the main lighting by the solid-state secondary power distribution device needs to be completely powered on, as shown in fig. 1.
In the ground maintenance mode, a ground power socket is connected, a ground maintenance switch beside the socket is switched on, and alternating current electric energy provided by an external power supply is directly transmitted to a direct current ground service bus bar through the ground maintenance switch and a voltage transformation rectifier, so that low-voltage direct current electric energy is provided for work required by ground maintenance without being electrified completely or entering a cockpit for operation.
Because the power supply of the solid-state secondary power distribution device only comes from the direct-current main bus bar and is not crosslinked with the direct-current ground service bus bar, when the main lighting is used in the ground maintenance mode, the external power switch on the cockpit operation power control panel is needed to enable the whole airplane to be electrified, the airplane is not convenient to maintain, unnecessary energy consumption is also brought, and the principle of electrifying the minimum range of the electric equipment in the ground maintenance mode is not met.
Therefore, how to more efficiently illuminate in the ground maintenance mode is a problem to be solved.
Disclosure of Invention
The application aims at providing an aircraft illumination conversion relay board to solve the problem that in the prior art, the ground is maintained and the main illumination is inconvenient to use.
The technical scheme of the application is as follows: an aircraft lighting conversion relay board comprises a sheet metal part, an electromagnetic relay and an electric connector; the electromagnetic relays are two groups and are all arranged on the sheet metal part, the mounting angle piece is provided with a flanging, the electric connector is arranged on the flanging, the electromagnetic relays are connected with the electric connector, each group of linear main bus bars on the airplane is correspondingly connected with the normally open contacts of one group of electromagnetic relays through the electric connector, and the direct-current ground service bus bars are correspondingly connected with the normally closed contacts of the two groups of electromagnetic relays through the electric connector; in a normal power supply mode, the electromagnetic relay is opened, and the solid-state secondary power distribution device is electrically connected with the linear main bus bar; and in the ground maintenance mode, the electromagnetic relay is closed, and the solid-state secondary power distribution device is electrically connected with the direct-current ground service bus bar.
Preferably, the bottom of the sheet metal part is provided with an installation angle sheet which is installed on an airplane; the electromagnetic relay and the mounting angle piece are connected with the sheet metal part through screws and self-locking nuts, and the electromagnetic relay is a balance force type sealed direct-current electromagnetic relay.
Preferably, the sheet metal part is made of 2A12 hard aluminum, the sheet metal part is connected with a reinforcing rib through a rivet, and the reinforcing rib is connected with the flanging through a rivet.
Preferably, one side of the sheet metal part, corresponding to the flanging, is provided with a crack-stopping groove.
Preferably, one side of the sheet metal part corresponding to each electromagnetic relay is provided with a label.
The aircraft lighting conversion relay board comprises a sheet metal part, an electromagnetic relay and an electric connector; the electromagnetic relays are divided into two groups and are arranged on the sheet metal part, the mounting angle piece is provided with a flanging, the electric connector is mounted on the flanging, and the electromagnetic relays are connected with the electric connector; in a normal power supply mode, because the direct current main bus bar line is connected with the normally-open point of the relay, and the relay coil is controlled by corresponding direct current normally, the bus bar where the solid-state secondary power distribution device is located is supplied with power by the on-board direct current main bus bar; in the ground maintenance mode, the direct current main bus bar is free of electricity, and the bus bar where the solid-state secondary power distribution device is located is powered by the direct current ground service bus bar. The switching power supply of the solid-state secondary power distribution device under different working modes is realized, the problem of inconvenient use of main lighting under a ground maintenance mode is solved, and the principle of electrifying the electrical equipment in the minimum range under the ground maintenance mode is met.
Drawings
In order to more clearly illustrate the technical solutions provided in the present application, the drawings will be briefly described below. It is to be understood that the drawings described below are merely exemplary of some embodiments of the application.
FIG. 1 is a schematic diagram of a power distribution structure of a solid-state secondary power distribution device in the prior art;
FIG. 2 is an isometric view of the overall structure of the present application;
FIG. 3 is a schematic view showing the bottom structure of a sheet metal part;
fig. 4 is a schematic diagram of a power distribution structure of the solid-state secondary power distribution device in the normal mode of the present application;
fig. 5 is a schematic diagram of a power distribution structure of the solid-state secondary power distribution device in the ground maintenance european style according to the present application.
1. A sheet metal part; 2. reinforcing ribs; 3. an electromagnetic relay; 4. an electrical connector; 5. a label; 6. mounting a corner piece; 7. riveting; 8. a screw; 9. a self-locking nut; 10. and a crack-stopping groove.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application.
An aircraft lighting conversion relay board is shown in figures 2-3 and comprises a sheet metal part 1, an electromagnetic relay 3 and an electric connector 4; the electromagnetic relays 3 are two groups and are arranged on the sheet metal part 1, the installation angle pieces 6 are provided with turned edges, the electric connectors 4 are arranged on the turned edges, and the electromagnetic relays 3 are connected with the electric connectors 4.
Every group sharp main bus bar on the aircraft all corresponds with the normally open contact of a set of electromagnetic relay 3 through electric connector 4 and is connected, and sharp main bus bar is total two sets ofly, is No. 1 sharp main bus bar and No. 2 sharp main bus bar respectively, and two sets of sharp main bus bars link to each other with the normally open contact of two sets of electromagnetic relay 3 respectively. The direct current ground service bus bar is correspondingly connected with the normally closed contacts of the two groups of electromagnetic relays 3 through the electric connector 4, and the coils of the electromagnetic relays 3 are normally controlled by corresponding direct currents. That is, the electromagnetic relay 3 is switched on when the direct current main bus bar is electrified, and the electromagnetic relay 3 is switched off when the direct current main bus bar is not electrified.
This application realizes high-efficient power supply through supplying power the conversion to solid-state secondary distribution device, relates to two kinds of mode, is normal power supply mode and ground maintenance mode respectively.
With reference to fig. 4, in the normal power supply mode, because the dc main bus bar line is connected to the normal open point of the relay, and the relay coil is controlled by the corresponding dc normal electric control, the electromagnetic relay 3 is turned on after the whole machine is powered on, the contacts are attracted to the normal open point, and the bus bar where the solid-state secondary power distribution device is located is powered by the onboard dc main bus bar.
Referring to fig. 5, in the ground maintenance mode, the dc main bus bar is not powered, the relay is turned off, the contact is not attracted, and the bus bar where the solid-state secondary power distribution device is located is powered by the dc ground service bus bar.
When the lighting conversion relay board is not provided, the electric energy of the solid-state secondary power distribution device only comes from the direct-current main bus bar, the solid-state secondary power distribution device is not crosslinked with the direct-current ground service bus bar, the conversion function is not provided, the whole machine needs to be electrified when main lighting is used in a ground maintenance mode, and the use is inconvenient. After the lighting conversion relay board is added, the solid-state secondary power distribution device is additionally provided with one path of direct-current ground service bus bar for power supply, a power supply line can be switched according to different working modes, main lighting is used in a ground maintenance mode without being powered on completely, the operation is more convenient, and in a normal power supply mode, the function of the main lighting is unchanged.
The illumination conversion relay board realizes the conversion power supply of the solid-state secondary power distribution device under different working modes, solves the problem of inconvenient use of main illumination under the ground maintenance mode, accords with the principle of electrifying the electrical equipment in the minimum range under the ground maintenance mode, improves the maintainability of the airplane, does not influence other products after implementation, can greatly save the cycle and the test cost, and has good economical efficiency.
Preferably, the bottom of the sheet metal part 1 is provided with an installation angle sheet 6, and the installation angle sheet 6 is installed on an airplane; electromagnetic relay 3 and installation horn piece 6 all link to each other with sheet metal component 1 through screw 8 and self-locking nut 9, and are fixed stable, electromagnetic relay 3 is the sealed direct current electromagnetic relay 3 of balanced force formula.
During manufacturing, the sheet metal part 1 is manufactured by adopting 2A12 hard aluminum, the crack-stopping groove 10 is formed in the joint of the root of the flanging and the bottom plate, and the mounting hole of the screw 8 of other parts is formed, so that the flanging needs to bear larger weight, the crack-stopping groove 10 can be arranged to prevent the flanging from cracking, and the stability is improved.
The reinforcing rib 2 is riveted on the lighting relay plate sheet metal part 1 through a rivet 7, and the electric connector 4 is installed on a flanging of the lighting relay plate sheet metal part 1 through a matched screw 8 and a nut, so that the fixing is stable.
One side of the sheet metal part 1 corresponding to each electromagnetic relay 3 is provided with a label 5, and the label 5 with carved characters is arranged on the illumination relay plate sheet metal part 1 through the adhesive. The corner piece 6 is connected to the aircraft structure by means of rivets 7.
And welding wires on corresponding welding hooks at the top of the electromagnetic relay 3 according to a wiring diagram by an internal circuit of the lighting relay board, and sending the other ends of the wires into corresponding pinholes of the electric connector 4 for crimping. After the electric wire is welded, the welding position is sleeved by the heat-shrinkable tube to protect the welding spot, and the situation that an unused empty pinhole of the electric connector 4 occupies space by using an empty pin and is blocked by a sealing plug is avoided.
During installation, fittings such as sealing plugs and pins are used, and the sealing plugs are used for sealing unused empty needle holes on the electric connector 44 to prevent water from entering the empty needle holes and dust from entering the empty needle holes.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (5)
1. An aircraft illumination conversion relay board which characterized in that: comprises a sheet metal part (1), an electromagnetic relay (3) and an electric connector (4); the electromagnetic relays (3) are divided into two groups and are arranged on the sheet metal part (1), the mounting angle sheet (6) is provided with a flanging, the electric connector (4) is mounted on the flanging, the electromagnetic relays (3) are connected with the electric connector (4), each group of linear main bus bars on the airplane are correspondingly connected with the normally open contacts of one group of electromagnetic relays (3) through the electric connector (4), and the direct current ground service bus bars are correspondingly connected with the normally closed contacts of the two groups of electromagnetic relays (3) through the electric connector (4); in a normal power supply mode, the electromagnetic relay (3) is opened, and the solid-state secondary power distribution device is electrically connected with the linear main bus bar; and in the ground maintenance mode, the electromagnetic relay (3) is closed, and the solid-state secondary power distribution device is electrically connected with the direct-current ground service bus bar.
2. An aircraft lighting relay panel according to claim 1, wherein: the bottom of the sheet metal part (1) is provided with an installation angle sheet (6), and the installation angle sheet (6) is installed on an airplane; the electromagnetic relay (3) and the installation angle sheet (6) are connected with the sheet metal part (1) through screws (8) and self-locking nuts (9), and the electromagnetic relay (3) is a balance force type sealing direct current electromagnetic relay (3).
3. An aircraft lighting relay panel according to claim 1, wherein: the sheet metal component is characterized in that the sheet metal component (1) is made of 2A12 hard aluminum, the sheet metal component (1) is connected with a reinforcing rib (2) through a rivet (7), and the reinforcing rib (2) is connected with the flanging through the rivet (7).
4. An aircraft lighting conversion relay panel as defined in claim 1, wherein: one side of the sheet metal part (1) corresponding to the flanging is provided with a crack stopping groove (10).
5. An aircraft lighting conversion relay panel as defined in claim 1, wherein: one side of the sheet metal part (1) corresponding to each electromagnetic relay (3) is provided with a label (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222688184.8U CN218569907U (en) | 2022-10-12 | 2022-10-12 | Aircraft illumination conversion relay board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222688184.8U CN218569907U (en) | 2022-10-12 | 2022-10-12 | Aircraft illumination conversion relay board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218569907U true CN218569907U (en) | 2023-03-03 |
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ID=85315797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222688184.8U Active CN218569907U (en) | 2022-10-12 | 2022-10-12 | Aircraft illumination conversion relay board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218569907U (en) |
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2022
- 2022-10-12 CN CN202222688184.8U patent/CN218569907U/en active Active
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