CN104075202B - A kind of combination navigation lights - Google Patents

Abstract

The present invention relates to a kind of combination navigation lights, comprise: lampshade, lamp housing, LED light source assembly, trim ring, control circuit and cover plate part, described LED light source assembly comprises a light source base, one first light source printed board, secondary light source printed board and a fin, one first inclined-plane begins to be upwards formed with forward from the leading edge place of this light source base bottom surface, begin to be formed with backward one second inclined-plane downwards from the trailing edge place of this light source base end face, this first light source printed board is arranged on described lamp housing and is positioned at the below on the first inclined-plane; This secondary light source printed board is arranged on the second inclined-plane, and described heat sink is positioned at this light source base top and extends back. With said structure, advantage of the present invention: adopt secondary optical design, forward and backward navigation is integrated, there is little, the lightweight and low cost and other advantages of volume.

Description

A combination navigation light

technical field

The invention relates to an aircraft illuminating light, a navigation light for marking the position of the aircraft in the air or on the ground, in particular a navigation light combining front and rear navigation lights.

Background technique

Navigation lights are widely used in various types of aircraft. They are usually installed on the left and right wings and vertical tail of the aircraft. They emit light in red, green and white colors to indicate the position of the aircraft in the air and on the ground, which is of great importance to the safety of the aircraft. For this reason, all types of aircraft use navigation lights as a standard configuration. At present, most aircrafts use left front navigation lights, right front navigation lights, left rear navigation lights and right rear navigation lights, a total of 4 discrete navigation lights, which are respectively installed on the front and rear edges of the wing tips to form a 360° continuous light distribution. , so that the position and direction of the aircraft can be identified in all directions. However, since a total of 4 discrete navigation lights are used, it also brings disadvantages such as large space occupation, heavy weight, and long cables, which also has a negative impact on the development of airborne equipment integration and miniaturization.

Contents of the invention

The purpose of the invention is to overcome the problems of large space occupation in the prior art, and propose a new type of combined navigation light.

In order to achieve the above object, the technical solution of the present invention is achieved as follows: a combined navigation light, including: a lampshade, a lamp housing, an LED light source assembly, a pressure ring, a control circuit and a cover plate component, wherein the lampshade and the lamp housing A first chamber is formed between the body, the LED light source assembly is located in the first chamber, a second chamber is formed between the lamp housing and the cover plate component, and the control circuit is located in the second chamber, its features That is: the LED light source assembly includes a light source seat, a first light source printed board, a second light source printed board and a heat sink, wherein a first An inclined plane, a second inclined plane is formed downwards and backwards from the rear edge of the top surface of the light source seat, the first light source printed board is arranged on the lamp housing and is located below the first inclined plane, so that the first light source The light emitted by the printed board is reflected outward by the first inclined surface; the second light source printed board is arranged on the second inclined surface, and the heat dissipation plate is located at the top of the light source seat and extends backward, so that the second light source printed board emits light The light can be reflected outward by the heat sink.

As a preferred solution of a combined navigation light, the first slope is a plated surface with high reflectivity. As a preferred solution for combining navigation lights, planes, paraboloids, hyperboloids, and combinations of the above three surfaces.

As a preferred solution for combined navigation lights, the reflection area of the first slope is an arc of 0° to 110° centered on the combination navigation lights, and the reflection area of the second slope is 110° to 110° centered on the combination navigation lights. 180° arc, where 0° is the front of the aircraft.

As a preferred solution of a combined navigation light, the shape of the lampshade is streamlined.

As a preferred solution for combining navigation lights, both the first light source printed board and the second light source printed board are provided with LED semiconductors.

As a preferred solution of a combined navigation light, the LED light source assembly is detachably connected to the light housing.

As an optimal solution for combining navigation lights, the constant current chip of the control circuit adopts MAX16832C, and its front end adopts a filter plus a varistor.

As a preferred solution of a combined navigation light, the cover plate component includes a cover plate and an electrical connector, and the electrical connector is electrically connected between the control circuit and a power supply provided on the aircraft.

Compared with the prior art, the present invention has the advantages of adopting the secondary optical design, integrating the front and rear sailing together, and having the advantages of small size, light weight and low cost.

Description of drawings

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

detailed description

The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

Please refer to Figure 1, what is shown in the figure is a combined navigation light installed on the fighter wing, including: lampshade 1, lamp housing 2, LED light source assembly 3, pressure ring 4, control circuit 5 and cover plate Component 6, the navigation light is installed on the left and right wing tips of the aircraft through the four mounting holes on the light housing 2, and has excellent heat dissipation performance. A first chamber 10 is formed between the lampshade 1 and the lamp housing 2, and the LED light source assembly 3 is located in the first chamber 10 and installed on the upper surface of the lamp housing 2 by four screws and electrically connected to the control circuit 5. Connection, which not only meets the light performance requirements, but also ensures the heat dissipation performance of the LED. A second chamber 20 is formed between the lamp housing 2 and the cover plate member 6, and the control circuit 5 is located in the second chamber 20 and fixed on the lamp housing 2 by four screws to prevent the control circuit 5 from Affected by natural environment such as humidity and heat. The pressure ring 3 fixes the lampshade 1 on the lamp housing 2 through four mounting screws, and a highly elastic sealing ring is filled between the lamp shade 1 and the lamp housing 2 . The cover plate 61 of the cover plate component 6 is installed on the bottom of the light housing 2 through four mounting screws, and rubber gaskets 63 are filled on the joint surface to ensure the sealing of the navigation light inside. The rubber gasket 63 is pasted on the cover plate 61 through silica gel to ensure the sealing connection between the cover plate and the lamp housing 2 . The electrical connector 62 on the cover communicates with the control circuit 5 of the combined navigation light and the power supply on the aircraft.

The LED light source assembly includes a light source seat 31, a first light source printed board 32, and a second light source printed board 33 (welding a plurality of high-power LED semiconductors on the first and second light source printed boards 32, 33 In addition, due to the use of LED as the light source, the service life of the lamp can be extended, and the color of the lamp is guaranteed by the luminous color of the high-power tube LED chip itself, with high brightness, which increases the utilization rate of the luminous intensity of the light source by 300%.) and heat sink 34 , wherein, a first inclined surface 35 is formed upward and forward from the front edge of the bottom surface of the light source seat, the first light source printed board is arranged on the lamp housing 2 and is located below the first inclined surface 35, the first inclined surface 35 There is a high-reflectivity plated surface on an inclined surface 35, and the shape of this surface can be a plane, a paraboloid, a hyperboloid or a combined surface, and it can be adjusted according to the specific selection, so as to ensure that the light distribution of the first light source printed board 32 covers the following The arc of 0°～110° centered on the combined navigation light. A second inclined surface 36 is formed downwards and backwards from the rear edge of the top surface of the light source seat, the second light source printed board is arranged on the second inclined surface 36, and the heat dissipation plate is located at the top of the light source seat and extends backward In this way, not only can heat dissipation efficiency be improved, but at the same time, by adopting different inclination angles and heat sink shapes, the light emitting angle of the second light source printed board 32 can be well controlled to ensure that the light distribution in the horizontal plane of the rear navigation lights covers the combined The arc of 110°-180° centered on the navigation light prevents the light of the rear navigation light from being mixed into the area of 0°-110° of the front navigation light (wherein, 0° is the front of the aircraft, and 90° is the side of the aircraft. outward). A heat sink is installed on the upper part of the light source seat, and the LED light source assembly can be disassembled separately, which improves the maintenance and repair of the navigation lights. Redundant protection technology is used for LEDs to ensure that when some LEDs are off, the rest can meet the flight requirements.

The control circuit 5 includes a constant current circuit and a printed board. The circuit uses a MAX16832C constant current chip. The front end uses a filter to reduce conduction interference, and a piezoresistor is used to ensure that the constant current chip can withstand spikes and surges, and the light emission of the lamp is stable. Low heat generation and 75% reduction in power.

The above only expresses the embodiment of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the scope of the patent for the invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (9)

1. a combination navigation lights, comprise: lampshade, lamp housing, LED light source assembly, trim ring, control circuit and cover plate part, wherein, between this lampshade and lamp housing, form one first room, described LED light source assembly is positioned at this first room, between this lamp housing and cover plate part, form one second room, described control circuit is positioned at this second room, it is characterized in that: described LED light source assembly comprises a light source base, one first light source printed board, one secondary light source printed board and fin, wherein, one first inclined-plane begins to be upwards formed with forward from the leading edge place of this light source base bottom surface, one second inclined-plane begins to be formed with backward downwards from the trailing edge place of this light source base end face, this the first light source printed board is arranged on described lamp housing and is positioned at the below on the first inclined-plane, make light that the first light source printed board sends through the first inclined-plane to external reflectance, this secondary light source printed board is arranged on the second inclined-plane, and described heat sink is positioned at this light source base top and extends back, and makes the light that secondary light source printed board is sent can be through heat sink to external reflectance.

2. a kind of combination navigation lights according to claim 1, is characterized in that: the first inclined-plane is selected from the plating face of reflectivity 80%～95%.

3. a kind of combination navigation lights according to claim 1 and 2, is characterized in that: the first inclined-plane is one of following: plane, parabola, hyperboloid, the combinatorial surface of above-mentioned three.

4. a kind of combination navigation lights according to claim 1, it is characterized in that: the reflector space on the first inclined-plane is the circular arc of 0 °～110 ° combining centered by navigation lights, the reflector space on the second inclined-plane is the circular arc of 110 °～180 ° combining centered by navigation lights, wherein, 0 ° of dead ahead that is aircraft.

5. according to the one combination navigation lights described in claim 1 or 4, it is characterized in that: the profile of described lampshade is streamlined.

6. a kind of combination navigation lights according to claim 1 and 2, is characterized in that: in the first light source printed board, secondary light source printed board, be all provided with LED semiconductor.

7. a kind of combination navigation lights according to claim 1, is characterized in that: described LED light source assembly and lamp housing are connected in mode removably.

8. a kind of combination navigation lights according to claim 1, is characterized in that: the constant current chip of described control circuit adopts MAX16832C, and its front end adopts wave filter to add piezo-resistance.

9. a kind of combination navigation lights according to claim 1, is characterized in that: described cover plate part comprises a cover plate and an electric connector, and this electric connector is connected electrically between the power supply arranging on described control circuit and aircraft.