CN214535859U

CN214535859U - Aircraft detection lamp with complex light-emitting angle and efficient heat dissipation

Info

Publication number: CN214535859U
Application number: CN202120986370.2U
Authority: CN
Inventors: 潘黎明; 吕培文; 郭长伟; 李享; 侯金弟
Original assignee: Shanghai Aviation Electric Co Ltd
Current assignee: Shanghai Aviation Electric Co Ltd
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2021-10-29
Anticipated expiration: 2031-05-10

Abstract

The utility model discloses an aircraft detection lamp with complex light-emitting angle and high-efficiency heat dissipation, which comprises a lamp shell, wherein the lamp shell is cylindrical, the lamp shell consists of a lamp upper shell and a lamp lower shell, the lamp upper shell is provided with an upper shell bottom wall and an upper shell peripheral wall, the top surface of the upper shell bottom wall is an inclined plane, the lamp lower shell is provided with a lower shell bottom wall and a lower shell peripheral wall, the peripheral surface of the upper shell peripheral wall and the peripheral surface of the lower shell peripheral wall are both provided with annular fins which are arranged at intervals along the vertical direction, and the annular fins surround along the circumference; the light source printed board is positioned in the built-in space of the upper shell, the top surface of the light source printed board is provided with a light source LED, the bottom surface of the light source printed board is in surface contact with the top surface of the bottom wall of the upper shell, and the light source LED is provided with a light reflecting bowl. The beneficial effects of the utility model reside in that: 1. a complex light-emitting angle; 2. high-efficiency heat dissipation.

Description

Aircraft detection lamp with complex light-emitting angle and efficient heat dissipation

Technical Field

The utility model relates to an aircraft lamps and lanterns, especially, a complicated light-emitting angle and high-efficient radiating aircraft detect lamp.

Background

When the atmosphere contains a certain amount of supercooled water droplets, icing may occur at certain parts of the aircraft surface, the icing being mainly concentrated on the wings, inlet lips and control surfaces. Icing of an aircraft can lead to reduced flight performance and deteriorated stability characteristics of the aircraft, and in severe cases can jeopardize flight safety and even cause catastrophic disasters. Aircraft icing has long been of high concern as the most important of the environmental factors that trigger flight runaway. With the rapid development of large civil aircrafts and large military transport planes in China, the damage of icing on flight safety cannot be completely eliminated based on the bottleneck of the existing limited cognition and icing protection technology. In order to ensure the safety of the flight, the front edge of the wing is illuminated to observe the icing condition, and an inspection lamp emitting white visible light is very important. Meanwhile, on-board lamps mostly require miniaturization, high power and high heat dissipation, so that the research on inspection lamps with complex light-emitting angles and high-efficiency heat dissipation is urgent.

At present, the light emitting direction of the domestic inspection lamp is mostly at a certain angle with a horizontal or vertical plane, the lamp body is mostly square, and the radiating fins are mostly right-angle type.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem in the prior art and providing a novel complicated light-emitting angle and high-efficient radiating aircraft detection lamp.

In order to realize the purpose, the technical scheme of the utility model is as follows: an aircraft detection lamp with complex light-emitting angle and high-efficiency heat dissipation comprises,

the lamp comprises a lamp shell which is cylindrical and consists of an upper lamp shell and a lower lamp shell, wherein the upper lamp shell is provided with an upper shell bottom wall and an upper shell peripheral wall, the upper shell bottom wall and the upper shell peripheral wall jointly define an upper shell built-in space with an upward opening, the top surface of the upper shell bottom wall is an inclined surface, the lower lamp shell is provided with a lower shell bottom wall and a lower shell peripheral wall, the lower shell bottom wall and the lower shell peripheral wall jointly define a lower shell built-in space, the outer peripheral surface of the upper shell peripheral wall and the outer peripheral surface of the lower shell peripheral wall are respectively provided with annular fins which are arranged at intervals in the vertical direction, and the annular fins are circumferentially surrounded;

the light source printed board is positioned in the built-in space of the upper shell, the top surface of the light source printed board is provided with a light source LED, the bottom surface of the light source printed board is in surface contact with the top surface of the bottom wall of the upper shell, and the light source LED is provided with a light reflecting bowl; and the number of the first and second groups,

and a driving printed board inside the lower case built-in space.

As a preferred scheme of the aircraft detection lamp with a complex light-emitting angle and efficient heat dissipation, the spacing distance between every two adjacent annular fins is 5.5mm, and the thickness of each annular fin is 1.5 mm.

Compared with the prior art, the beneficial effects of the utility model reside in at least: 1. on the basis of fully utilizing the space and achieving the specified light intensity, the complex light-emitting angle requirement that a light-emitting angle and a horizontal plane and a vertical plane respectively form a certain included angle is met; 2. the design of annular fin can increase heat radiating area, realizes high-efficient quick heat dissipation.

Drawings

Fig. 1 is an external view schematically illustrating an embodiment of the present invention 1.

Fig. 2 is an external view schematically illustrating an embodiment of the present invention 2.

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

Fig. 4 is a heat dissipation path diagram according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail below with reference to the accompanying drawings by way of specific embodiments. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

Referring to fig. 1 to 4, an aircraft detection lamp with a complex light-emitting angle and high-efficiency heat dissipation is shown, which is used for observing the icing condition of wings of a transporter and can be popularized to other aircraft applications.

The aircraft detection lamp comprises a lamp shell 1, a lamp lampshade 2, a light source printed board 3, a reflecting bowl 4, a driving printed board 5, a pressing ring 6, a sealing ring 7, a wiring terminal 8 and the like.

The lamp housing 1 is cylindrical. The lamp shell 1 is designed in a split mode and is provided with a lamp upper shell 11 and a lamp lower shell 12. The purpose of the above structure design is to avoid the problem of insufficient layout space inside the integrated shell and improve the electromagnetic compatibility of the product.

The lamp housing 11 has a housing bottom wall 111 and a housing peripheral wall 112. The upper housing bottom wall 111 and the upper housing peripheral wall 112 together define an upper housing inner space having an upward opening. The upward opening is closed by the lamp shade 2. The top surface of the upper shell bottom wall 111 is an inclined surface, and forms an included angle larger than 0 degree with a horizontal plane and/or a vertical plane. In this embodiment, the included angle formed by the top surface of the upper casing bottom wall 111 and the vertical plane is 18 °, and the included angle formed by the top surface of the upper casing bottom wall 111 and the horizontal plane is 10.5 °.

The light source printed board 3 is located inside the upper case built-in space. The light source printed board 3 has light source LEDs arranged on the top surface thereof. The bottom surface of the light source printed board 3 is in surface contact with the top surface of the bottom wall 111 of the upper shell, so that the light emitting direction of the light source printed board 3 forms an included angle larger than 0 degree with the horizontal plane and/or the vertical plane, and the requirement of a complex light emitting angle is met.

The light source LED is provided with the reflector 4. The bottom surface of the light reflecting bowl 4 is a plane. The bottom surface of the reflector 4 is in surface contact with the top surface of the bottom wall 111 of the upper shell. The top surface of the reflecting bowl 4 is an inclined plane and is parallel to the lamp shade 2 after being installed. The light intensity requirement is satisfied in the narrow space of above-mentioned structural design make full use of promptly lamps and lanterns epitheca 11 again, still realizes complicated light-emitting requirement.

The lower lamp housing 12 has a lower housing bottom wall and a lower housing peripheral wall 122. The lower housing bottom wall and the lower housing peripheral wall 122 together define a lower housing interior space. The driving printed board 5 is located inside the lower case built-in space. The driving printed board 5 controls the light source printed board 3 to emit white visible light, so that the front edge of the wing is illuminated, and whether the wing is frozen or not is observed.

The outer peripheral surface of the upper casing peripheral wall 112 and the outer peripheral surface of the lower casing peripheral wall 122 are formed with annular fins 100 arranged at intervals in the vertical direction. The annular fin 100 is circumferentially surrounded along the upper case peripheral wall 112 or the lower case peripheral wall 122. Different from the traditional right-angle fin design, the heat dissipation area can be increased by adopting the annular fin 100, so that heat generated by the light source LED is quickly conducted to the annular fin 100 through the upper shell peripheral wall 112 and the lower shell peripheral wall 122, the heat conduction and convection in the vertical direction after the airplane detection lamp installation are ensured, the quick and effective heat dissipation is realized, and the requirement of natural ventilation can be met. In the embodiment, the fin spacing distance is designed to be 5.5mm, the fin thickness is designed to be 1.5mm, and the light source LED junction temperature simulation result is only about 92 ℃ in a 70 ℃ working environment.

The above description is only intended to illustrate embodiments of the present invention, and the description is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An aircraft detection lamp with complex light-emitting angle and high-efficiency heat dissipation is characterized by comprising,

and a driving printed board inside the lower case built-in space.

2. The aircraft detection lamp with complex light-emitting angle and efficient heat dissipation according to claim 1, wherein the light reflecting bowl is fixed on the top surface of the bottom wall of the upper shell, and the fixed top surface of the light reflecting bowl is parallel to a lamp shade.

3. The aircraft detection lamp with complex light-emitting angle and efficient heat dissipation of claim 1, wherein the distance between two adjacent annular fins is 5.5mm, and the thickness of each annular fin is 1.5 mm.