CN216131894U

CN216131894U - Reflective light distribution structure for airport navigation lighting and airport navigation lighting lamp

Info

Publication number: CN216131894U
Application number: CN202121764266.5U
Authority: CN
Inventors: 王立峰
Original assignee: Shanghai Aviation Electric Co Ltd
Current assignee: Shanghai Aviation Electric Co Ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-03-25
Anticipated expiration: 2031-07-30

Abstract

The utility model discloses a reflective light distribution structure for airport navigation lighting and an airport navigation lighting lamp. Comprises an aluminum substrate having a top surface; the LED light source is arranged on the top surface of the substrate, and the light emitting direction of the LED light source is upward; and the reflecting element is arranged on the top surface of the substrate, the reflecting element is matched with the LED light source for use, the reflecting element is provided with an element reflecting surface, the element reflecting surface and the top surface of the substrate jointly define an opening along a first lateral direction, the LED light source is formed at or close to the focal position of the element reflecting surface, and the LED light source faces the element reflecting surface, so that the light emitted by the LED light source passes through the element reflecting surface and then advances along the first lateral direction. The utility model has the beneficial effects that: the optical fiber has the advantages of good optical tolerance, high light efficiency, low power consumption, small volume, easy processing, high temperature resistance, aging resistance, difficult deformation, vibration resistance, impact resistance, simple and convenient installation and adjustment and low cost.

Description

Reflective light distribution structure for airport navigation lighting and airport navigation lighting lamp

Technical Field

The utility model relates to the technical field of illumination, in particular to a reflection type light distribution structure for airport navigation aid illumination and an airport navigation aid illumination lamp.

Background

The airfield lighting lamp is mainly used for providing runway direction, position, distance and correct glide slope information for pilots, and ensuring that the aircraft can be accurately guided to safely approach, land, slide and take off at night, in low cloud, low visibility or other severe meteorological conditions. In recent years, the LED lighting source has gradually replaced the traditional tungsten halogen lamp due to its advantages of high efficiency, energy saving, environmental protection, low cost, long service life, etc., and becomes a general lighting source for the navigation lighting lamp in airports.

The LED light source of the prior airport navigation lighting lamp mostly adopts a lens light distribution technology, and the original radiation direction of light is changed through a lens so as to obtain the light intensity distribution meeting the requirement. The technology has the following defects: the lens is mostly made of plastics such as PC, PMMA and the like, and has poor ageing resistance and ultraviolet resistance; the lens has larger light-emitting area and the same light-emitting area, and the number of the LED arrays is less; the transmittance is not high, and the transmittance of PMMA material with the thickness of 10mm is only 76%; the temperature resistance is poor, the PMMA lens is easy to deform when heated, and the thermal deformation temperature of the PMMA lens is 90 degrees; the size of the lens is small due to process limitation, and small-angle light control is difficult to realize by secondary light distribution of a large-size chip; the vibration resistance and the impact resistance are poor due to the limitation of the inherent installation mode; the LED lens belongs to a precise optical element, has extremely high requirement on the precision of a mould, and has higher corresponding processing equipment and higher cost price.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the problem that the existing airport navigation lighting lamp adopts a lens light distribution technology, and provides a reflection type light distribution structure for airport navigation lighting and an airport navigation lighting lamp.

In order to achieve the purpose, the technical scheme of the utility model is as follows: a reflection type light distribution structure for airport navigation aid lighting comprises,

an aluminum substrate having a substrate top surface;

the LED light source is arranged on the top surface of the substrate, and the light emitting direction of the LED light source is upward; and the number of the first and second groups,

the reflecting element is arranged on the top surface of the substrate, the reflecting element is matched with the LED light source for use, the reflecting element is provided with an element reflecting surface, the element reflecting surface and the top surface of the substrate jointly define an opening along a first lateral direction, the LED light source is formed at or close to the focal position of the element reflecting surface, and the LED light source faces the element reflecting surface, so that the light emitted by the LED light source passes through the element reflecting surface and then advances along the first lateral direction.

As a preferable scheme of the reflective light distribution structure for airport navigation lighting, the LED light source is a single LED or an array consisting of a plurality of LEDs.

As a preferable scheme of the reflective light distribution structure for airport navigation lighting, the LED light source is selected from one of the following: white light LEDs, green light LEDs, red light LEDs, yellow light LEDs, blue light LEDs, infrared LEDs, other visible light LEDs, and other invisible light LEDs.

As a preferable scheme of the reflection type light distribution structure for the airport navigation lighting, the element reflection surface is selected from one of the following components: paraboloid, paraboloid-like surface, ellipsoid, hyperboloid, other secondary aspheric surface and other free-form surface.

As a preferable configuration of the reflective light distribution structure for airport navigation lighting, the focal length f, the depth d, and the width w of the reflecting surface of the element are configured according to the optical characteristics and the light intensity distribution requirements of the LED light source.

As a preferable scheme of the reflective light distribution structure for airport navigation lighting, the number of the LED light sources and the number of the reflective elements are both 1.

As a preferable scheme of the reflection type light distribution structure for airport navigation lighting, the number of the LED light sources and the number of the reflection elements are both more than 2.

The utility model also provides an airport navigation lighting lamp which comprises the reflective light distribution structure.

Compared with the prior art, the utility model has the beneficial effects that: the light-emitting efficiency of the reflective light distribution structure is high, and the obtained reflection efficiency is 85% -98%; more LED light sources and reflecting elements can be placed in the limited space of the aluminum substrate, so that the space utilization rate is improved; the aluminum substrate is made of aluminum materials, the surface of the aluminum substrate is plated with metal films, the thermal stability is high, and the aluminum substrate is not easy to deform when being heated; the large-size light distribution element can be processed, and the small-angle light control requirement can be realized even if a large-size chip is processed; the LED light source and the reflecting element are designed into an integrated structure, so that the vibration resistance and the shock resistance are greatly enhanced; the processing technology of the reflecting element is mature, and the production cost is low.

In addition to the technical problems addressed by the present invention, the technical features constituting the technical solutions, and the advantageous effects brought by the technical features of the technical solutions described above, other technical problems solved by the present invention, other technical features included in the technical solutions, and advantageous effects brought by the technical features will be described in further detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of the present invention.

FIG. 2 is a schematic diagram of a first placement of the LED light sources of the present invention.

FIG. 3 is a schematic structural diagram of a second placement of the LED light source of the present invention.

Fig. 4 is a schematic structural view of embodiment 1 of the present invention.

Fig. 5 is a schematic structural view of embodiment 2 of the present invention.

Fig. 6 is a schematic structural diagram of embodiment 3 of the present invention.

Fig. 7 is a schematic structural diagram of embodiment 4 of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

Because components of embodiments of the present invention can be implemented in a variety of ways, these directional terms are used for purposes of illustration and not of limitation. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.

Referring to fig. 1 to 3, a reflective light distribution structure for airfield lighting is shown.

The reflective light distribution structure is composed of an aluminum substrate 10, an LED light source 20, a reflective element 30 and the like.

The aluminum substrate 10 is made of aluminum. The aluminum substrate 10 has a substrate top surface. The aluminum substrate 10 is used for providing a power supply circuit for the LED light source 20 and fixing the LED light source 20 and the reflective element 30. The LED light sources 20 face the element reflective surface of the reflective element 30 and are at or near their focal positions A (dx and dz, i.e., offset distances in FIG. 2). The element reflection surface of the reflection element 30 is used for realizing secondary light distribution of the LED light source 20 to meet the requirement of light intensity distribution of the lamp.

The LED light source 20 is a single LED or an array of multiple LEDs.

The LED light source 20 is selected from one of: white light LEDs, green light LEDs, red light LEDs, yellow light LEDs, blue light LEDs, infrared LEDs, other visible light LEDs, and other invisible light LEDs.

The element reflective surface of the reflective element 30 is selected from one of: paraboloids (paraboloids circularly swept around an axis of rotational symmetry, i.e. the dash-dotted line in fig. 1, or paraboloids elliptically swept around an axis of rotational symmetry), paraboloids, ellipsoids, hyperboloids, other quadratic aspheres, other free-form surfaces.

The focal length f, depth d and width w of the reflecting surface of the reflecting element 30 are configured according to the optical characteristics and light intensity distribution requirements of the LED light source.

The reflecting light distribution structure can be assembled into an airport navigation aid lighting lamp.

Example 1:

referring to fig. 4, a reflective light distribution structure for airfield lighting is shown. The reflective light distribution structure for airport navigation lighting comprises 1 aluminum substrate 101, 1 LED light source 201 (the LED light source 201 is a single LED) and 1 reflector 301. The LED light source 201 and the reflector 301 are fixed to the aluminum substrate 101. The aluminum substrate 101 provides a power supply circuit for the LED light source 201, and fixes the LED light source 201 and the reflector 301 for bearing. The LED light source 201 is at or off the focal position of the reflector 301. The reflector 301 has a focal length f, a depth d, and a width w, and realizes light distribution of the LED light source 201 to meet the light intensity distribution requirement of the lamp.

Example 2:

referring to fig. 5, another reflective light distribution structure for airfield lighting is shown. Based on embodiment 1, the focal length f, the depth d, and the width w of the reflector 302 are changed as required according to the light emitting characteristics of the LED light source 202 chip according to the requirement of the light intensity distribution of the lamp.

Example 3:

referring to fig. 6, there is shown still another reflective light distribution structure for airfield lighting. The reflective light distribution structure for airport navigation lighting comprises 1 aluminum substrate, 4 LED light sources 203 and 4 reflectors 303. The LED light sources 203 are used in one-to-one pairing with the reflectors 303. Wherein the LED light source 203 employs a single LED. Adjacent 2 reflectors 303 are integrally connected.

Example 4:

referring to fig. 7, there is shown yet another reflective light distribution structure for airfield lighting. The reflective light distribution structure for airport navigation lighting comprises 1 aluminum substrate, 3 LED light sources 204 and 3 reflectors 304. The LED light sources 204 are used in a one-to-one pairing with the reflectors 304. One of the LED light sources 204 is two LEDs, and the remaining LED light sources 204 are single LEDs. Adjacent 2 reflectors 303 are integrally connected.

While embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be taken as limiting the utility model. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A reflection type light distribution structure for airport navigation lighting is characterized by comprising,

an aluminum substrate having a substrate top surface;

2. The reflective light distribution structure for airfield lighting according to claim 1 wherein the LED light source is a single LED or an array of multiple LEDs.

3. A reflective light distribution structure for airfield lighting according to claim 1 wherein the LED light source is selected from one of: white light LEDs, green light LEDs, red light LEDs, yellow light LEDs, blue light LEDs, infrared LEDs, other visible light LEDs, and other invisible light LEDs.

4. A reflective light distribution structure for airfield lighting according to claim 1 wherein the element reflecting surface is selected from one of: paraboloid, paraboloid-like surface, ellipsoid, hyperboloid, other secondary aspheric surface and other free-form surface.

5. The structure of claim 1, wherein the focal length f, depth d and width w of the reflecting surface of the element are configured according to the optical characteristics and light intensity distribution of the LED light source.

6. The reflective light distribution structure for airfield lighting according to claim 1, wherein the number of the LED light sources and the number of the reflective elements are both 1.

7. The structure of claim 1, wherein the number of said LED light sources and said reflective elements is 2 or more.

8. An airfield lighting lamp, characterized in that it comprises a reflective light distribution structure according to any one of claims 1 to 7.