Lens type landing taxi lamp with adjustable light emitting angle
By introducing a lens-type design with adjustable light angle into the aircraft landing taxi light, the problem of unadjustable light angle of the existing aircraft taxi light is solved, and the fine adjustment of the light source angle and efficient utilization of light energy are achieved, reducing production costs.
Patent Information
- Application Number
- CN202422355164.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-26
AI Technical Summary
The light angle of existing aircraft landing taxi lights is unadjustable, which cannot meet the pilot's precise lighting needs during night takeoff, landing and taxiing.
A lens-type landing sliding light with adjustable light output angle is designed. By setting the rotation shaft and guide shaft on the heat dissipation shell, the pitch angle adjustment of the light source printed board is realized, and different types of LED and TIR lenses are used for light distribution optimization.
The light output angle of the light source printed board is fine-tuned, which reduces light energy loss, reduces production costs, and supports modular design.
Smart Images
Figure CN223116615U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a landing taxiing lamp, and in particular to a lens type landing taxiing lamp with adjustable light emitting angle. Background Art
[0002] Landing taxiing lamps are usually installed on the front landing gear strut of an aircraft and are used for forward lighting during night takeoff, landing, and taxiing, enabling the pilot to clearly observe the relative position between the aircraft and the runway as well as the flight altitude, and safely operate the aircraft to land and taxi on the ground, ensuring the safe takeoff and landing of the aircraft. Currently, the existing aircraft landing taxiing lamps are of a fixed installation structure and do not have the function of adjusting the light emitting angle. Summary of the Invention
[0003] The purpose of the utility model is to solve the problem that the light emitting angle of the existing aircraft landing taxiing lamp is not adjustable, and to provide a lens type landing taxiing lamp with adjustable light emitting angle.
[0004] To achieve the above purpose, a technical solution provided by the utility model is: a lens type landing taxiing lamp with adjustable light emitting angle, including: a heat dissipation housing and a light source printed circuit board inside the heat dissipation housing, the light source printed circuit board emits light forward, the back of the back wall of the heat dissipation housing has an upper ear plate of the housing and a lower ear plate of the housing, the upper ear plate of the housing and the lower ear plate of the housing are arranged up and down, the upper ear plate of the housing is formed with a rotation hole of the upper ear plate, a rotation shaft passes through the inside of the rotation hole of the upper ear plate, the lower ear plate of the housing is formed with a guiding hole of the lower ear plate, a guiding shaft passes through the inside of the guiding hole of the lower ear plate, and the axis of the guiding shaft is parallel to the axis of the rotation shaft.
[0005] As a preferred scheme of the lens type landing taxiing lamp with adjustable light emitting angle, the light source printed circuit board is fixed with landing LEDs and taxiing LEDs, the landing LEDs are at both sides, and the taxiing LEDs are in the middle.
[0006] As a preferred scheme of the lens type landing taxiing lamp with adjustable light emitting angle, the number of the landing LEDs is 20, and the number of the taxiing LEDs is 9.
[0007] As a preferred scheme of the lens type landing taxiing lamp with adjustable light emitting angle, the landing LEDs are configured with landing TIR lenses, and the lens parameters of the landing TIR lenses are configured as: horizontal scattering angle 14.3°, vertical scattering angle 8.2°; the taxiing LEDs are configured with taxiing TIR lenses, and the lens parameters of the taxiing TIR lenses are configured as: horizontal scattering angle 41°, vertical scattering angle 10.4°.
[0008] As a preferred scheme of the lens type landing taxiing lamp with adjustable light emitting angle, the light source printed circuit board is in surface contact with the back wall of the heat dissipation housing and thermal conductive silicone grease is coated at the contact position.
[0009] Compared with the prior art, the beneficial effects of the present utility model are at least as follows: 1. The heat dissipation housing can rotate up and down around the axis of the rotating shaft, that is, the light output angle of the light source printed circuit board in the pitch direction can be finely adjusted. 2. The landing LED and the taxiing LED are respectively light-matched through the landing TIR lens and the taxiing TIR lens, reducing light energy loss, lowering production costs, and realizing modular design. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 is the main structural view of an embodiment of the landing and taxiing light of the present utility model.
[0011] Figure 2 is the bottom structural view of an embodiment of the landing and taxiing light of the present utility model.
[0012] Figure 3 is the layout diagram of the light source printed circuit board in an embodiment of the landing and taxiing light of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0013] The present utility model will be further described in detail below in conjunction with the accompanying drawings through specific embodiments. It should be noted here that the description of these embodiments is for helping to understand the present utility model, but does not constitute a limitation to the present utility model. In addition, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.
[0014] Refer to Figures 1 to 2 , what is shown in the figure is a lens-type landing and taxiing light with adjustable light output angle. The lens-type landing and taxiing light with adjustable light output angle includes: a heat dissipation housing 1 and a light source printed circuit board 2 inside the heat dissipation housing 1. The light source printed circuit board 2 emits light forward.
[0015] On the back of the back wall of the housing of the heat dissipation housing 1, there are a housing upper ear plate 11 and a housing lower ear plate 12. The housing upper ear plate 11 and the housing lower ear plate 12 are arranged vertically. The housing upper ear plate 11 is formed with an upper ear plate rotation hole 110. A rotating shaft 3 passes through the inside of the upper ear plate rotation hole 110. The housing lower ear plate 12 is formed with a lower ear plate guiding hole 120. The lower ear plate guiding hole 120 is an arc-shaped waist hole. A guiding shaft 4 passes through the inside of the lower ear plate guiding hole 120. The guiding shaft 4 is fixed. The axis of the guiding shaft 4 is parallel to the axis of the rotating shaft 3. Thus, the heat dissipation housing 1 can rotate up and down around the axis of the rotating shaft 3, that is, finely adjust the light output angle of the light source printed circuit board 2 inside the heat dissipation housing 1 in the pitch direction. During specific implementation, the upward tilt can be adjusted by 0 to 2 degrees, and the downward dip can be adjusted by -2 to 0 degrees.
[0016] Refer to Figure 3, the light source printed circuit board 2 is fixedly provided with landing LEDs 21 and taxiing LEDs 22. The landing LEDs 21 are located at both sides, while the taxiing LEDs 22 are located in the middle. Specifically, when implemented, the number of the landing LEDs 21 is 20, and the number of the taxiing LEDs 22 is 9. The landing LEDs 21 are configured with landing TIR lenses. The lens parameters of the landing TIR lenses are configured as: horizontal scattering angle 14.3°, vertical scattering angle 8.2°. The taxiing LEDs 22 are configured with taxiing TIR lenses. The lens parameters of the taxiing TIR lenses are configured as: horizontal scattering angle 41°, vertical scattering angle 10.4°.
[0017] Specifically, when implemented, the design process of the landing TIR lenses and the taxiing TIR lenses is as follows: First, use the powerful optimization function of Lighttools software to obtain the three-dimensional model of the lenses, then import the obtained three-dimensional model of the lenses into CATIA, refine the upper surface of the three-dimensional model of the lenses by adding edges, and finally verify the simulation effect of the three-dimensional model of the lenses with the optical simulation software SPEOS.
[0018] Preferably, the light source printed circuit board 2 is fixed to the front of the back wall of the housing of the heat dissipation housing 1 by screws. The light source printed circuit board 2 is in surface contact with the back wall of the housing of the heat dissipation housing 1 and thermal conductive silicone grease is coated at the contact position, aiming to reduce the contact thermal resistance and to conduct the heat generated when the landing LEDs 21 and the taxiing LEDs 22 work to the back wall of the housing of the heat dissipation housing 1 to the greatest extent, and then dissipate it to the external environment through the heat convection between the back wall of the housing of the heat dissipation housing 1 and the air.
[0019] The above only expresses the implementation manners of the present utility model, and its description is relatively specific and detailed, but it cannot be understood as a limitation on the scope of the utility model patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.
Claims
1. A landing taxiing light with an adjustable light-emitting angle in the form of a lens, characterized in that, Comprising: A heat dissipation housing and a light source printed circuit board inside the heat dissipation housing, the light source printed circuit board emits light forward, the back surface of the housing back wall of the heat dissipation housing has a housing upper ear plate and a housing lower ear plate, the housing upper ear plate and the housing lower ear plate are arranged vertically, the housing upper ear plate is formed with an upper ear plate rotation hole, a rotation shaft passes through the inside of the upper ear plate rotation hole, the housing lower ear plate is formed with a lower ear plate guide hole, a guide shaft passes through the inside of the lower ear plate guide hole, and the axis of the guide shaft is parallel to the axis of the rotation shaft.
2. The light-emitting angle adjustable lens type landing taxiing lamp according to claim 1, wherein, The light source printed circuit board is fixed with landing LEDs and taxiing LEDs, the landing LEDs are at both side positions, and the taxiing LEDs are at the middle position.
3. The light-emitting angle adjustable lens landing taxiing lamp according to claim 2, characterized in that The number of the landing LEDs is 20, and the number of the taxiing LEDs is 9.
4. The light-emitting angle adjustable lens type landing taxiing lamp according to claim 2, wherein, The landing LEDs are configured with landing TIR lenses, and the lens parameters of the landing TIR lenses are configured as: horizontal scattering angle 14.3°, vertical scattering angle 8.2°; the taxiing LEDs are configured with taxiing TIR lenses, and the lens parameters of the taxiing TIR lenses are configured as: horizontal scattering angle 41°, vertical scattering angle 10.4°.
5. The adjustable light-emitting angle lens-type landing taxiing lamp according to claim 1, wherein The light source printed circuit board is in surface contact with the housing back wall of the heat dissipation housing and thermal conductive silicone grease is coated at the contact position.