CN202524619U - Control circuit of stationary-type landing light of airplane - Google Patents
Control circuit of stationary-type landing light of airplane Download PDFInfo
- Publication number
- CN202524619U CN202524619U CN2012201556891U CN201220155689U CN202524619U CN 202524619 U CN202524619 U CN 202524619U CN 2012201556891 U CN2012201556891 U CN 2012201556891U CN 201220155689 U CN201220155689 U CN 201220155689U CN 202524619 U CN202524619 U CN 202524619U
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- light
- diode
- relay
- landing light
- control circuit
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Abstract
The utility model relates to improvement on a control circuit of a stationary-type landing light of an airplane, and belongs to a technology of aviation electrical appliances. The control circuit comprises a landing light (1), a relay (2) and a hand switch (3), and is characterized by also comprising a diode D1, a current limiting resistor R and a light emitting diode D2 arranged in a cabin, wherein a movable contact (2kd) of the relay (2) is connected with the anode of the diode D1; the cathode of the diode D1 is connected with the other end of the landing light (1); the anode of the light emitting diode D2 is connected in series with the current limiting resistor R and then connected with the cathode of the diode D1; and the cathode of the light emitting diode D2 is grounded. By the control circuit, pilots in the cabin can judge whether the stationary-type landing light is lightened based on the lighting condition of an indicator light, so that energy waste is avoided.
Description
Technical field
The utility model belongs to the air appliance technology, relates to the improvement to the fixed landing light control circuit of aircraft.
Background technology
Fixed landing light is provided with in order to illuminate the landing place, and it is installed in the outside of passenger cabin.Present aircraft landing lamp control circuit is referring to Fig. 1; It is made up of landing light 1, relay 2 and hand switch 3, an end ground connection of landing light 1, and the moving contact 2kd of the other end relay 2 of landing light 1 connects; One end ground connection of relay 2 coils; One end of the hand switch 3 that the other end of relay 2 coils is interior with being installed in passenger cabin is connected, another termination 18V power supply of hand switch 3, and the normally opened contact 2kc of relay 2 connects the 18V power supply.Its shortcoming is: existing control circuit is not established indicator light in passenger cabin; After the driver gets into driving cabin; If the control switch that mistake is bumped fixed landing light ignites landing light 1, by day or passenger cabin when very bright outward, the driver is difficult for finding that landing light ignites; Thereby increased the power supply burden, wasted energy.
Summary of the invention
Whether the purpose of the utility model: propose a kind of fixed landing light control circuit of aircraft that can in passenger cabin, provide the indication of landing light state, ignite so that the driver grasps fixed landing light in passenger cabin, the energy avoids waste if being.
The technical scheme of the utility model is: the fixed landing light control circuit of a kind of aircraft; Comprise landing light 1, relay 2 and hand switch 3, an end ground connection of landing light 1, an end ground connection of relay 2 coils; One end of the hand switch 3 that the other end of relay 2 coils is interior with being installed in passenger cabin is connected; Another termination 18V power supply of hand switch 3, the normally opened contact 2kc of relay 2 connects the 18V power supply, it is characterized in that: a diode D1, current-limiting resistance R and a light-emitting diode D2 who is installed in the passenger cabin are arranged; The moving contact 2kd of relay 2 is connected with the positive pole of diode D1; The negative pole of diode D1 is connected with the other end of landing light 1, is connected the minus earth of light-emitting diode D2 with the negative pole of diode D1 behind the anodal series limiting resistor R of light-emitting diode D2.
The utility model has the advantages that: whether the driver just can judge fixed landing light and ignite in passenger cabin from whether indicator light is luminous, has avoided wasting energy.
Description of drawings
Fig. 1 is the electrical schematic diagram of present certain type aircraft landing lamp control circuit.
Fig. 2 is the electrical schematic diagram of the utility model.
Embodiment
Explain further details in the face of the utility model down.Referring to Fig. 2, the fixed landing light control circuit of a kind of aircraft comprises landing light 1, relay 2 and hand switch 3; One end ground connection of landing light 1; One end of the hand switch 3 that one end ground connection of relay 2 coils, the other end of relay 2 coils are interior with being installed in passenger cabin is connected another termination 18V power supply of hand switch 3; The normally opened contact 2kc of relay 2 connects the 18V power supply; It is characterized in that: a diode D1, current-limiting resistance R and a light-emitting diode D2 who is installed in the passenger cabin are arranged, and the positive pole of diode D1 connects, and the negative pole of diode D1 is connected with the other end of landing light 1; Be connected the minus earth of light-emitting diode D2 with the negative pole of diode D1 behind the anodal series limiting resistor R of light-emitting diode D2.
The operation principle of the utility model is: when hand switch 3 closures, and the coil electricity of relay 2, the moving contact 2kd of relay 2 contacts conducting with normally opened contact 2kc, and the 28V power supply is through the bright landing light 1 of diode D1 after-burning.Simultaneously, the 28V power supply is lighted light-emitting diode D2 behind current-limiting resistance R, and expression landing light 1 is in the state of igniting.Whether intact the effect of diode D1 is: when using external power supply inspection landing light 1, make the isolation of external power supply and internal circuit.
Claims (1)
1. fixed landing light control circuit of aircraft; Comprise landing light [1], relay [2] and hand switch [3], an end ground connection of landing light [1], an end ground connection of relay [2] coil; One end of the hand switch [3] that the other end of relay [2] coil is interior with being installed in passenger cabin is connected; Another termination 18V power supply of hand switch [3], the normally opened contact [2kc] of relay [2] connects the 18V power supply, it is characterized in that: a diode D1, current-limiting resistance R and a light-emitting diode D2 who is installed in the passenger cabin are arranged; The moving contact [2kd] of relay [2] is connected with the positive pole of diode D1; The negative pole of diode D1 is connected with the other end of landing light [1], is connected the minus earth of light-emitting diode D2 with the negative pole of diode D1 behind the anodal series limiting resistor R of light-emitting diode D2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201556891U CN202524619U (en) | 2012-04-13 | 2012-04-13 | Control circuit of stationary-type landing light of airplane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201556891U CN202524619U (en) | 2012-04-13 | 2012-04-13 | Control circuit of stationary-type landing light of airplane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202524619U true CN202524619U (en) | 2012-11-07 |
Family
ID=47107543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201556891U Expired - Fee Related CN202524619U (en) | 2012-04-13 | 2012-04-13 | Control circuit of stationary-type landing light of airplane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202524619U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104780639A (en) * | 2014-01-10 | 2015-07-15 | 海洋王（东莞）照明科技有限公司 | LED lamp overheat protection circuit |
| CN104981047A (en) * | 2014-04-10 | 2015-10-14 | 哈尔滨飞机工业集团有限责任公司 | Aircraft landing lamp electrical control system |
| CN104994613A (en) * | 2015-04-29 | 2015-10-21 | 哈尔滨飞机工业集团有限责任公司 | Aircraft landing lamp conversion control circuit |
-
2012
- 2012-04-13 CN CN2012201556891U patent/CN202524619U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104780639A (en) * | 2014-01-10 | 2015-07-15 | 海洋王（东莞）照明科技有限公司 | LED lamp overheat protection circuit |
| CN104981047A (en) * | 2014-04-10 | 2015-10-14 | 哈尔滨飞机工业集团有限责任公司 | Aircraft landing lamp electrical control system |
| CN104994613A (en) * | 2015-04-29 | 2015-10-21 | 哈尔滨飞机工业集团有限责任公司 | Aircraft landing lamp conversion control circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20180413 |