JP2017016849A - Aeronautical light - Google Patents

Abstract

[Problem] To take measures against heat dissipation without unnecessarily increasing the number of parts and the number of assembly man-hours, to prevent interference with the structure for heat dissipation measures and other parts, and to prevent interference with other parts when installing on site. To provide an aeronautical light which can be easily and reliably set to a desired horizontal angle for determining a light distribution direction. A mounting base (20) for supporting a lamp body (30), a light source (40) composed of an LED arranged in the lamp body (30), and a heat sink (50) for dissipating heat generated by the light source (40), wherein the light source (40) is at least the heat sink. 50, and emits light in both directions. A horizontal angle setting means is provided for setting the horizontal angle of the heat sink 50 with respect to the mounting base 20 to one pattern arbitrarily selected from a plurality of predetermined patterns when the heat sink 50 is assembled on the mounting base 20. - 特許庁. [Selection drawing] Fig. 1

Description

  The present invention relates to an aircraft light that is installed at an airfield and visually guides an aircraft by guiding light by light, and particularly relates to a runway light that is a kind of airfield light.

  Conventionally, as an aerial light installed on a runway or a taxiway at an airport, for example, a runway light that is installed at both ends of a runway to show the outline of the runway is known (see, for example, Patent Document 1). .) Such a runway lamp is configured to emit light in two directions from both sides of the lamp body, and a light bulb such as a high-power halogen lamp is generally used as the light source.

The light source such as a halogen lamp as the light source not only consumes a large amount of power but also has a relatively short rated life. Such replacement work should be as low in frequency as possible so as not to hinder airport operation.
Therefore, as a light source that can eliminate the drawbacks of light bulbs such as halogen lamps, replacement with LEDs (light-emitting diodes) with low power consumption and long rated life has been desired.

  By the way, the installation place and the use in a runway were distinguished by the difference in the light color which irradiates light in two directions. In other words, the combination of white light / yellow light in the two directions of the runway light was installed near both ends of the runway, and the white light / white light combination was installed near the center of the runway. . Moreover, there is a specification that the horizontal angle for irradiating light in two directions is set at a predetermined angle different for each combination.

  Apart from the runway lamp, there is also known a runway end lamp whose basic structure, such as its lamp body and light irradiation in two directions, is common, but whose light color combination is different from the runway lamp. Yes. The runway end lamp is a lamp that indicates the approach end and end of the runway to the aircraft taking off or landing, and its use is distinguished by the light color.

  That is, in the runway end lamp, green light out of two directions is used toward the approach end of the runway, while red light is used toward the end of the runway. This runway end lamp also has a specification that the horizontal angle for irradiating light in two directions is set at a predetermined angle different from the horizontal angle of the runway lamp.

JP 7-161208 A

  However, when the light source in the runway lamp or the runway end lamp described in Patent Document 1 as described above is replaced with an LED from a conventional light bulb such as a halogen lamp, it is not necessary to simply replace the light source. Such a problem is expected to occur.

  That is, a lamp such as a runway lamp has a sealed structure because waterproofing is required. However, since an LED becomes a high heat source, the LED itself and other related parts are protected in the sealed lamp. In addition, it was necessary to take more sufficient heat dissipation measures. Moreover, if the number of parts and the number of assembling steps are increased as a structure for heat dissipation measures, there is a possibility that the cost increases. Further, in a limited space in the lamp body, the arrangement of other related parts becomes more important so as not to interfere with the structure for heat dissipation.

  Further, in the above-described conventional runway lamps and the like, the light distribution direction has to be finely adjusted to a different horizontal angle depending on the installation location and application each time it is installed on the field of an airfield. Such adjustment of the horizontal angle is cumbersome and time consuming, and there is a risk of hindering airfield operation. In addition, conventional runway lights and the like have not been devised to suggest a specific horizontal angle when installed.

  The present invention has been made paying attention to the problems of the conventional techniques as described above. When the light source is replaced from a light bulb to a semiconductor element such as an LED, the number of parts and the number of assembly steps are increased. It is possible to take measures against heat dissipation without any interference, effectively utilizing the limited space in the existing lamp body, preventing interference with the structure for heat dissipation measures and other parts, and installing it on site It is an object of the present invention to provide an aviation lamp that can be easily and reliably set to a desired horizontal angle that determines a light distribution direction and can be quickly installed.

The gist of the present invention for achieving the object described above resides in the inventions of the following items.
[1] In an aviation light (10) installed at an airfield and guiding an aircraft by light,
A mounting base (20) for supporting the lamp body (30); a light source (40) comprising a semiconductor element disposed in the lamp body (30); and a heat sink (50) for radiating heat generated by the light source (40). Have
The heat sink (50) is provided as a separate body on the mounting base (20),
The light source (40) is supported on at least both sides of the heat sink (50) and emits light in both directions.

  [2] The heat sink (50) includes plate-like side surfaces (52, 53) for attaching the light source (40) on both sides thereof, and the light source (40) is provided between the inner surfaces of the both side surfaces (52, 53). The air lamp (10) according to [1], wherein a plurality of fins (54) for dissipating heat from the unit are integrally arranged in parallel.

  [3] In the heat sink (50), the plurality of fins (54) are arranged avoiding the storage space in order to secure a storage space for storing other related parts on the mounting base (20). The aerial light (10) according to the above [2], characterized by:

  [4] The aviation according to [3], wherein the heat sink (50) has an opening (55) communicating with the storage space in each of the fins (54) positioned before and after the heat sink (50). Light (10).

  [5] In the storage space on the mounting base (20), as the related parts, the power supply component (61) for the light source (40) is pressed from above by the mounting bracket (60). The aerial light (10) according to the above [3] or [4], which is fixed on a table (20).

  [6] A circuit board (62) for controlling lighting of the light source (40) is mounted on the mounting bracket (60) as the related component in the storage space on the mounting base (20). The airlight (10) according to [5], which is characterized in that

[7] The mounting base (20) is fixed substantially horizontally at a predetermined installation location,
When assembling the heat sink (50) on the mounting base (20), the horizontal angle of the heat sink (50) with respect to the mounting base (20) was arbitrarily selected from a plurality of predetermined patterns. The air lamp (10) according to [1], [2], [3], [4], [5] or [6], further comprising a horizontal angle setting means for setting to one pattern.

  [8] The horizontal angle setting means is provided on the mounting base (20) and the heat sink (50), and for each of the plurality of patterns, a plurality of sets of screws (71) and screw holes ( 72, 73). The airlight (10) according to the above [7].

[9] The screw holes (72, 73)
A plurality of the mounting bases (20) are provided along the circumferential direction, and at least two of them are fixed screw holes (72) forming a set corresponding to each of the plurality of patterns;
A plurality of mounting side screw holes (73) provided on the heat sink (50), at least two of which are selectively matched to the fixed side screw holes (72) forming the set for each of the plurality of patterns. Including
The screw (71) is common to the plurality of patterns, passes through the mounting side screw hole (73) of the heat sink (50), and engages with the fixed side screw hole (72) of the mounting base (20). The aerial light (10) according to the above [8], characterized in that there are a plurality of mounting screws (71).

Next, the operation based on the above solution will be described.
In the air lamp (10) described in [1], the lamp body (30) is supported by the mounting base (20), and the light source (40) is arranged in the lamp body (30). Here, the light source (40) uses a semiconductor element instead of a conventional light bulb such as a halogen lamp, and as a characteristic of a semiconductor element typified by an LED, for example, it has low power consumption, long life, Labor and power costs can be kept low.

  Instead, in the lamp body (30), in order to protect the light source (40) itself and other related parts by suppressing the temperature rise of the light source (40) using the semiconductor element that is a high heat generation source as much as possible. Sufficient heat dissipation measures are required. As a heat dissipation measure, the aviation light (10) includes a heat sink (50) that radiates heat generated by the light source (40). Here, the heat sink (50) is provided separately on the mounting base (20). Thereby, the mounting position and mounting direction of the heat sink (50) on the mounting base (20) can be changed, and it becomes possible to match any specification.

  If the heat sink (50) is in contact with the mounting base (20) at any part, the heat received by the heat sink (50) is directly transmitted to the mounting base (20). Accordingly, the front and back surfaces of the mounting base (20) are also heat dissipation surfaces, and the effective heat dissipation area from the mounting base (20) to the surroundings as well as the heat sink (50) is increased, and the heat dissipation efficiency can be further enhanced. Here, the shape of the heat sink (50) is preferably not large enough to expand to the vicinity of the inner wall of the lamp body (30) in order to enhance its heat dissipation performance.

  The light source (40) can irradiate light in both directions if the heat sink (50) itself is used as a support and is supported on at least both sides of the heat sink (50). That is, the heat sink (50) is arranged between the light sources (40) on both sides, and it is not necessary to prepare a support for attaching the light source (40) as a separate part. In addition, since the heat generated from the light sources (40) on both sides is directly transmitted to the heat sink (50), it can be radiated more rapidly. Such an air lamp (10) can be used as a runway lamp or a runway end lamp as it is.

  Specifically, as described in [2], the heat sink (50) includes plate-like side portions (52, 53) to which the light source (40) is attached on both sides, and each side portion (52 , 53), a plurality of fins (54) for dissipating heat from the light source (40) are integrally arranged in parallel. Here, since the outer surface side of both side surface portions (52, 53) can secure a relatively wide area, the light source (40) can be easily attached along these outer surface sides.

  In addition, it is necessary to store other related parts in the lamp body (30). According to the aviation lamp (10) described in [3], other related parts are mounted on the mounting base (20). In order to secure a storage space for housing the parts, a plurality of fins (54) of the heat sink (50) are arranged so as to avoid the storage space. Thereby, in a storage space secured in advance, related parts can be arranged without interfering with the fins (54) of the heat sink (50).

  In the heat sink (50), the fins (54) positioned before and after the side surface portions (52, 53) on both sides thereof become a front surface portion and a rear surface portion, respectively. Here, as described in [4] above, an opening (55) communicating with the storage space may be opened in each of the fins (54) located in the front-rear direction and the front surface portion and the rear surface portion. Through the opening (55), related parts can be easily arranged in the storage space.

  In such a storage space on the mounting base (20), as described in [5] above, as a related part, the power supply part (61) for the light source (40) is moved up by the mounting bracket (60). It is good to fix on a mounting base (20) in the state pressed down from. As a result, the power supply component (61) can be securely fixed, and the heat generated by the component (61) can be efficiently transmitted to the mount (20).

  Further, as described in [6] above, the related parts include a circuit board (62) for controlling the lighting of the light source (40). This circuit board (62) is mounted on the mounting base (20). It is good to mount on the mounting bracket (60) in the storage space. That is, the mounting bracket (60) for fixing the power supply component (61) can also be used as a structure for supporting the circuit board (62).

  Moreover, although the flight lamp (10) as described in said [7] fixes a mounting base (20) substantially horizontally at a predetermined installation location, here the orientation (directionality) of the mounting base (20) in the horizontal direction. Is preferably determined in advance so as to have a specific orientation to be a uniform reference for the angle in relation to the horizontal angle of the heat sink (50) assembled on the mounting base (20).

  The light distribution characteristic of the light source (40) disposed on the mounting base (20) via the heat sink (50) needs to be adapted to different specifications depending on the application and installation location of the aviation light (10). The horizontal angle of the lamp body (30) is determined in accordance with this specification. When the heat sink (50) is assembled on the mounting base (20), the heat sink for the mounting base (20) is previously set by the horizontal angle setting means. The horizontal angle of (50) can be set to a desired angle.

  That is, in the horizontal angle setting means, for example, a plurality of patterns of horizontal angles corresponding to the specifications are prepared on the basis of a specific direction of the mounting base (20), and any one of these is selected. The heat sink (50) is assembled on the mounting base (20) at the horizontal angle of the one pattern. After that, it is only necessary to fix the assembled unit in a specific direction determined in advance, and there is no need to make fine angle adjustments each time in the field.

  Specifically, as described in [8] above, for example, the horizontal angle setting means is provided on the mounting base (20) and the heat sink (50), and matches the plurality of patterns at different positions. A plurality of sets of screws (71) and screw holes (72, 73) may be used. With such a simple configuration, the heat sink (50) can be easily and reliably set to a desired horizontal angle with respect to the mounting base (20).

  More specifically, as described in [9] above, the screw holes (72, 73) include a fixed-side screw hole (72) provided in the circumferential direction on the mounting base (20) side, and a heat sink. (50) are combined with a plurality of attachment side screw holes (73). Here, at least two of the fixed-side screw holes (72) arranged in the circumferential direction form a set corresponding to each of the plurality of patterns. On the other hand, the attachment-side screw hole (73) is arranged so as to selectively match the fixed-side screw hole (72) forming the set for each of the plurality of patterns. The circumferential direction is not limited to the same circumference.

  The screws (71) are a plurality of mounting screws (71) common to the plurality of patterns. The mounting screw (71) is passed through the mounting side screw hole (73) forming a set corresponding to a desired horizontal angle among the plurality of mounting side screw holes (73) in the heat sink (50), and further Then, the plurality of fixed side screw holes (72) in the mounting base (20) are selectively engaged with the mounting side screw holes (73) forming the set. Thereby, the heat sink (50) can be easily and reliably fixed to the mounting base (20) at a desired horizontal angle.

According to the aviation lamp according to the present invention, when the light source is replaced from a conventional light bulb to a semiconductor element such as an LED, it is possible to take a heat dissipation measure without increasing the number of parts and the number of assembly steps. The limited space in the lamp body can be effectively used to prevent interference between the structure for heat dissipation and other parts.
In addition, when installing an aviation light at the site, it is possible to easily and reliably set the desired horizontal angle that determines the light distribution direction according to the specifications, so that the aviation light can be quickly installed at the site. it can.

It is a perspective view which shows the whole containing the lamp body of the runway lamp which concerns on embodiment of this invention, a mounting base, and a heat sink. It is a perspective view which shows the principal part containing the mounting base and heat sink of the runway lamp which concern on embodiment of this invention. It is a perspective view which shows the principal part containing the mount and the heat sink of the runway lamp which concern on embodiment of this invention from a different direction from FIG. It is a perspective view which shows the principal part containing the mount and the heat sink of the runway lamp which concern on embodiment of this invention from a different direction. It is a perspective view which shows the principal part containing the mount and the heat sink of the runway lamp which concern on embodiment of this invention from a different direction. It is a left view which shows the principal part containing the mount and the heat sink of the runway lamp which concern on embodiment of this invention. It is a right view which shows the principal part containing the mounting base and heat sink of the runway lamp which concern on embodiment of this invention. It is a front view which shows the principal part containing the mount and runner of the runway lamp which concern on embodiment of this invention. It is a rear view which shows the principal part containing the mounting base and heat sink of the runway lamp which concern on embodiment of this invention. It is a top view which shows the principal part containing the mounting base and heat sink of the runway lamp which concern on embodiment of this invention. It is a bottom view which shows the principal part containing the mounting base and heat sink of the runway lamp which concern on embodiment of this invention. It is the XII-XII sectional view taken on the line of FIG. It is the XIII-XIII sectional view taken on the line of FIG. It is a front view which shows the whole containing the base of a runway lamp, lamp body, a mounting base, and a heat sink which concerns on embodiment of this invention. It is explanatory drawing which shows typically the horizontal angle setting means of the runway lamp which concerns on embodiment of this invention. It is explanatory drawing which shows the horizontal angle setting means of the runway lamp which concerns on embodiment of this invention. It is explanatory drawing which shows the installation location and horizontal angle of a runway light in a runway.

DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment that represents the present invention will be described based on the drawings.
1 to 16 show an embodiment of the present invention.
The aircraft light according to the present embodiment is installed at an airfield and guides the aircraft by light, and visually supports its navigation, and there are various types depending on its use. A case where the present invention is applied to a runway lamp 10 which is a kind of airfield lamp will be described as an example.

  The runway lamp 10 is a lamp that is installed along both sides extending in the longitudinal direction of the runway, and indicates the outline of the runway to an aircraft that is about to take off or land. The runway lamp 10 is configured to irradiate light in both side directions (two directions). The light in two directions of the runway lamp 10 is combined with white light or yellow light according to the installation locations along both sides of the runway.

  That is, as shown in FIG. 17, the combination of white light / yellow light in the two directions of the runway lamp 10 is installed near both ends of the runway 1, and the combination of white light / white light is a runway. It was installed near the center of Road 1. Here, the light distribution in each direction of each runway lamp 10 is determined so that the horizontal angle of each runway lamp 10 is realized so as to realize a predetermined light column characteristic that conforms to a specification (Air Station Specification) established by the Ministry of Land, Infrastructure, Transport and Tourism. It was.

  In addition, there is a runway end lamp having a different application and installation location as an aerial lamp having almost the same configuration as the runway lamp 10. In the runway end lamp, the light in two directions is a combination of green light / red light. Such runway terminal lights are installed at both ends of the runway 1, and green light is arranged on the side indicating the entry end of the runway 1 and red light is arranged on the side indicating the end of the runway 1 with predetermined light column characteristics. Similarly, the horizontal angle was defined according to the above specifications so that it could be illuminated.

  As shown in FIGS. 1 to 3 and 14, the runway lamp 10 includes a pedestal 11 fixed in advance at a predetermined position on the road surface of the runway 1, and is fixed substantially horizontally with respect to the pedestal 11. A mounting base 20 that supports the body 30; a heat sink 50 that is assembled on the mounting base 20 at a predetermined horizontal angle; and a light source 40 that is disposed on the mounting base 20 via the heat sink 50 and is made of a semiconductor element. Become.

  As shown in FIG. 14, the pedestal 11 has a lower portion 11a formed in a cylindrical shape, and an upper portion 11b formed in a bowl shape whose upper surface is opened. The upper half part of the bowl-shaped upper part 11b is connected to the lower half part so that the inclination angle with respect to the horizontal plane can be finely adjusted over the entire circumferential direction. Thereby, the elevation angle (lamp angle) of the light source 40 described later can be finely adjusted. The upper half can be moved or fixed with a fastening screw 12.

  The upper half opening side of the upper portion 11b of the pedestal 11 is a predetermined installation location to which the mounting base 20 is attached. The pedestal 11 is installed via a column 13 embedded under the road surface of the runway 1. The strut 13 is set to a strength that bends in the middle when an excessive force is applied, and is bent when the aircraft or the like contacts the runway light 10, so that the aircraft or the like is not damaged. Note that the pedestal 11 and the support column 13 are made of a metal such as an aluminum alloy, for example.

  As shown in FIGS. 2, 6, and 12, the mounting base 20 is formed in a disc shape that matches the upper end opening surface of the upper portion 11 b of the base 11. The mounting base 20 is made of a metal such as an aluminum alloy like the base 11 and is separate from the heat sink 50 described later. As shown in FIG. 11, a communication hole 21 through which a power line and a ground line extending from related parts described later are inserted downward is formed in the approximate center of the mounting base 20.

  As shown in FIGS. 11 and 12, a stepped flange portion 23 is provided on the outer peripheral edge of the mounting base 20. A pair of attachment holes 24, 24 for engaging the attachment screws 22 are provided at both ends of the flange portion 23. That is, both ends of the flange portion 23 are fixed to the upper half opening side of the base 11 with the mounting screws 22 in a substantially horizontal state.

  The mounting direction (directionality) of the mounting base 20 in the horizontal direction is preset in a specific direction to be a uniform reference for the horizontal angle in relation to the horizontal angle of the heat sink 50 assembled on the mounting base 20. . Specifically, for example, a diameter line that connects between the mounting screws 22 at both ends of the mounting base 20 is set in a direction orthogonal to the center line 1a extending in the longitudinal direction of the runway 1 (see FIG. 17). . Here, in the mounting base 20, as shown in FIG. 15, a diameter line perpendicular to the diameter line connecting the mounting screws 22 at both ends, that is, a diameter line parallel to the center line 1a is defined as a reference line L of the horizontal angle.

  As described above, the light distribution characteristics of the light source 40 disposed on the mount 20 need to be adapted to different specifications depending on the installation location and application. In accordance with this specification, the horizontal angle of the runway lamp 10 is determined. When the heat sink 50 is assembled on the mounting base 20, the horizontal angle of the heat sink 50 with respect to the mounting base 20 is determined among a plurality of predetermined patterns. Horizontal angle setting means for setting to any one pattern selected arbitrarily.

  Here, the “plurality of patterns” is a type of inward angle (horizontal angle) for tilting the main light column in the runway lamp or the runway end lamp to the inside of the runway 1, as defined in the above specifications. Specifically, as shown in FIG. 17, white light / yellow light, yellow light / white light, and white light / white light in the runway lamp 10 are each 4.5 degrees. In the runway end lamp having substantially the same configuration as the runway lamp 10, the green light is set to 3.5 degrees and the red light is set to 0 degrees. These specific horizontal angles are the inclination of the light column of the light source 40 with respect to the reference line L of the mounting base 20 described above. Since red light is hard to see compared to other light colors, it is set at 0 degrees parallel to the center line 1a.

  In order to respond to such specifications, in this embodiment, as shown in FIGS. 15 and 16, white light / yellow light, yellow light / white light, and white light / white light of the runway light 10 are 2 respectively. .5 degrees (4.5 degrees on the specifications), green light of the runway end lamp is 5 degrees (3.5 degrees on the specifications), red light is 0 degrees, and these horizontal angles are determined in advance 3 One pattern. The horizontal angle in the embodiment is slightly different from the inward angle (horizontal angle) in the specification, but this is for design reasons, and the actual light distribution of the light source 40 is a lens array 42 described later. By adjusting the light distribution control and the LED current adjustment, the light distribution is adjusted so as to match the light distribution standard in the specification.

  As shown in FIGS. 15 and 16, the horizontal angle setting means is provided on the mounting base 20 and the heat sink 50, and a plurality of sets of mounting screws 71 and screw holes 72 that match at different positions for each of the plurality of patterns. 73. Here, of the screw holes 72 and 73, the fixed side screw hole 72 is provided in the mounting base 20. A plurality of sets (three sets in the present embodiment) of fixed side screw holes 72 are provided along the circumferential direction on both sides of the flange portion 23 of the mounting base 20 with the mounting holes 24 therebetween. .

  In FIG. 15, the arrangement of the fixed screw holes 72 is schematically shown. However, it is preferable that the fixed screw holes 72 are originally arranged along the same circumference. However, if they are arranged on the same circumference, the screw holes may overlap if the horizontal angle is slightly different. Therefore, as shown in FIG. 16, the fixed-side screw holes 72 that are close enough to overlap each other on the same circumference are arranged on the circumference of a radius different from the center and shifted in the radial direction.

  At least two of the fixed side screw holes 72 form a set corresponding to each of the plurality of patterns. Specifically, in the example schematically shown in FIG. 15, in the case of the horizontal angle of the pattern 1 corresponding to white light / yellow light, yellow light / white light, and white light / white light in the runway lamp 10. In the figure, four fixed-side screw holes 72 engaged with mounting screws 71 form a set.

  Further, in the case of the horizontal angle of the pattern 2 corresponding to the green light (/ red light) of the runway end lamp, four fixed side screw holes 72 engaged with the mounting screws 71 in the figure form a set. Furthermore, in the case of the horizontal angle of the pattern 3 corresponding to the red light (/ green light) of the runway end lamp, four fixed side screw holes 72 engaged with the mounting screws 71 in the figure form a set.

  On the other hand, of the screw holes 72 and 73 constituting the horizontal angle setting means, the mounting side screw hole 73 is provided on the heat sink 50 side. As will be described in detail later, at least two of the attachment-side screw holes 73 are arranged so as to selectively match the fixed-side screw holes 72 forming the set for each of the plurality of patterns. In addition, four mounting screws 71 that are common to the plurality of patterns are prepared, but the number thereof is an arbitrary design matter.

  The heat sink 50 also serves as a structure for supporting the light source 40, is formed in a form that fits in the lamp body 30 described later, and is configured separately from the mounting base 20 by a metal such as an aluminum alloy, for example. . Specifically, as shown in FIGS. 1, 12, and 13, the heat sink 50 includes plate-like side portions 52 and 53 to which the light source 40 is attached on both sides, and the outer surface side between the inner surfaces of the both side portions 52 and 53. A plurality of fins 54 for radiating heat from the light source 40 are integrally arranged in parallel.

  Each of the side portions 52 and 53 has a substantially rectangular plate shape, and is slightly inclined inward toward the upper side. Further, the side surface portions 52 and 53 are not parallel to each other, but are arranged so as to form opposite sides that are not parallel to each other in plan view with the trapezoidal upper surface portion 51 therebetween. In the upper surface portion 51, the upper end edge of each fin 54 between the both side surface portions 52 and 53 and the gap therebetween are alternately arranged. In other words, each fin 54 hangs downward from the upper surface portion 51.

  Of the fins 54, the fins 54 a and 54 b positioned on the front and rear sides form the outer periphery of the heat sink 50 together with the side surface portions 52 and 53. That is, the fin 54a at the front end is the front surface portion, and the fin 54b at the rear end is the rear surface portion. The lower ends of the front and rear fins 54 a and 54 b extend to the same height as the lower ends of the side surface portions 52 and 53, and are continuous as an opening on the lower surface side of the heat sink 50. Moreover, the opening part 55 connected to the inside is opened in the upper and lower two steps in the fins 54a and 54b located in the front and rear.

  Of the fins 54, those located inside other than the front and rear fins 54a and 54b are not hanging down to the lower surface side opening as shown in FIG. Yes. Thereby, a storage space for storing other related parts on the mounting base 20 is secured in the heat sink 50. That is, each fin 54 is arranged so as to avoid the storage space.

  Each fin 54 includes the front and rear fins 54a and 54b, and the specific shape and thickness, the number, and the distance between each fin are designed in the optimal form shown in the figure based on the heat radiation simulation. The design items are not limited to the above but can be determined as appropriate. Other related parts disposed in the storage space on the mounting base 20 will be described later.

  The light source 40 is provided on each of the side surface portions 52 and 53 which are both sides of the heat sink 50, and the light column (light distribution) direction of the light source 40 on both sides is a direction orthogonal to each outer surface. Here, the side surface portions 52 and 53 are not parallel to each other as described above, and form opposite sides of a trapezoid that are not parallel. Therefore, the light distribution direction from both sides of the heat sink 50 is not the opposite direction of 180 degrees aligned on a straight line, but the direction intersecting at an obtuse angle of less than 180 degrees with the center of the heat sink 50 in between. This angle is to correspond to the specification.

  When assembling such a heat sink 50 to the mounting base 20, the heat sink 50 is mounted at a horizontal angle that matches the specifications with respect to the mounting base 20 whose orientation (direction) is uniquely determined by the mounting relationship with the base 11. It is important to install. The horizontal angle is set to one pattern arbitrarily selected from a plurality of predetermined patterns by the horizontal angle setting means described above.

  Of the lower end side opening of the heat sink 50, along the lower end edges of the front and rear fins 54a, 54b, attachment pieces 56 that are bent outward are integrally provided. The attachment piece portions 56 on both sides are portions that are fixed in contact with the flange portion 23 of the attachment base 20, and each attachment piece portion 56 is provided with attachment-side screw holes 73 constituting the horizontal angle setting means. It has been.

  Here, as shown in FIG. 16, the attachment-side screw holes 73 have a plurality of sets (two sets in the present embodiment) arranged on a straight line on both sides of the attachment piece 56 in the fin 54 a at the front end. Is provided. Also, the mounting piece 56 on the fin 54b at the rear end is provided so that a plurality of sets (three sets in the present embodiment) are arranged in a straight line on both sides thereof. In addition, in the attachment piece portion 56 of the fin 54a at the front end, only the attachment side screw hole 73a on one end side thereof is a long hole that connects two screw holes for error adjustment.

  At least two of the attachment-side screw holes 73 are arranged so as to selectively match the fixed-side screw holes 72 that form the set for each of the plurality of patterns. Here, the smaller the number of mounting side screw holes 73 is, the better. However, in order to arrange the mounting side screw holes 72 so as to overlap each other, it is necessary to provide a plurality of mounting side screw holes 73 at different positions.

  Specifically, in FIG. 16, when the heat sink 50 is assembled to the mounting base 20 at the horizontal angle of the pattern 1, four mounting-side screw holes 73 and 73a engaged with the mounting screws 71 in the figure are assembled. Eggplant. Further, in the case of assembling at the horizontal angle of the pattern 2, four attachment-side screw holes 73, 73a engaged with the attachment screw 71 in the figure form a set. Furthermore, when assembling at the horizontal angle of the pattern 3, four attachment-side screw holes 73, 73a engaged with the attachment screw 71 in the figure form a set.

  The light source 40 is composed of a semiconductor light emitting element. Here, the semiconductor light emitting element is a light emitting element using a semiconductor, and corresponds to an organic EL, an LD (semiconductor laser), and the like in addition to the LED employed in the present embodiment. The LED is specifically a surface-mounted LED chip, for example, and its configuration is general, and thus a detailed description thereof will be omitted. However, an emission range (light column) having a predetermined angle centered on the optical axis perpendicular to the chip surface is used. It is a light emitting element that emits light with a characteristic). Of course, an LED lamp in which the light emitting element is embedded in a substantially bullet-shaped mold may be used.

  The light source 40 according to the present embodiment has four LED boards 41A to 41D. Main LED boards 41A and 41B on which a large number of LEDs are mounted are attached to both side surfaces 52 and 53, which are both sides of the heat sink 50, respectively. Further, auxiliary LED boards 41C and 41D each mounted with only one LED are attached to the fins 54a and 54b before and after the heat sink 50, respectively. Although individual LEDs are not shown, they are mounted on the LED substrates 41A to 41D. These LED boards 41 </ b> A to 41 </ b> D are respectively connected in series and controlled to be turned on by a circuit board 62 described later.

  The LED boards 41A and 41B on both sides of the heat sink 50 are vertically long rectangles extending widely on the outer surfaces of the side surface portions 52 and 53. A wiring circuit is formed on the surface, and a plurality of LEDs are mounted on the wiring circuit. ing. The LED substrates 41A and 41B are directly attached on the outer surfaces of the side surface portions 52 and 53 of the heat sink 50, respectively. Note that it is not necessary to turn on all LEDs depending on the light color (for example, white light), and it is sufficient to turn on the LEDs as many times as necessary light intensity can be obtained.

  The emission color of the LEDs on the LED substrates 41A and 41B on both sides is a design matter that can be selected as appropriate. In the present embodiment, white light or yellow light, or green light or red light is combined as described above in accordance with the specifications regarding the runway light or the runway end light. The specific layout of each LED on the surface of the LED substrates 41A and 41B is also a design matter that can be selected as appropriate, but in this embodiment, the LEDs are arranged so as to be distributed over the entire area of the LED substrate 41.

  Although each LED is not shown in the drawing, a convex lens portion 43 of the lens array 42 described below is arranged in front of each LED so as to correspond to each of the LEDs. The arrangement of the convex lens portion 43 directly corresponds to the arrangement of the LEDs on the LED substrates 41A and 41B. Here, the lens array 42 is not a perfect circle but a vertically long ellipse. When the lamp body 30 to be described later is put on, the lens array 42 has a slightly smaller width in both directions so as not to interfere with the inner peripheral wall of the lamp body 30. By narrowing.

  On the other hand, if the lens array 42 is made into a true circle having a diameter that does not interfere with the inner peripheral wall of the lamp body 30, the surface area is inevitably reduced, and it becomes impossible to accommodate a large number of LEDs. In such a case, the required light intensity cannot be obtained depending on the light color (for example, red light). As described above, in order to ensure a large surface area in a limited space, a vertically long ellipse is used. Of course, however, the specific shape is not limited to a perfect circle or ellipse.

  The lens array 42 controls the light distribution so that the irradiation light from each LED has a predetermined light column luminous intensity characteristic, and is arranged in a state of covering the front of each LED. Specifically, for example, the lens array 42 is formed by integrally forming convex lens portions 43 corresponding to individual LEDs on a thin plate-like colorless and transparent base plate. Here, the convex lens unit 43 performs light distribution control so as to achieve a predetermined light column luminous intensity characteristic by, for example, converging each irradiation light in the optical axis direction corresponding to each LED.

  Further, the LED boards 41C and 41D before and after the heat sink 50 are not directly related to aircraft guidance at the airport, and need to be provided according to the specifications. These LED substrates 41C and 41D are formed in a horizontally long bracket shape, and only one LED is mounted on the surface thereof. Each LED board 41C, 41D is attached to a boundary portion that divides the opening 55 in the fins 54a, 54b on the front and rear sides of the heat sink 50 into two vertically.

  The LED has a light distribution characteristic with a strong directivity, and unlike the light bulb, the light does not spread over a wide range from the optical axis, so that the front and back surfaces where the main LED substrates 41A and 41B are not provided are inevitably darkened. However, the above-mentioned specifications stipulate that it is necessary to shine more than a predetermined luminous intensity over the entire circumference of the runway lamp. In order not to violate such specifications, it is necessary to provide LED substrates 41C and 41D as auxiliary light before and after the heat sink 50.

  As shown in FIG. 1, the lamp body 30 is formed as a dome-shaped glove having an open bottom surface facing the mounting base 20. Unlike the mounting base 20 and the like, the lamp body 30 is integrally formed of a transparent material such as glass. The lamp body 30 has an internal space for storing the heat sink 50 and the like on the mounting base 20 in a state of surrounding the heat sink 50 from above. The lamp body 30 can irradiate light to the outside over the entire circumference, but actually irradiates light from the position where the light source 40 faces to the outside.

  The opening on the lower surface side of the lamp body 30 is a part to be mounted on the mounting base 20. Here, the peripheral edge of the opening on the lower surface side of the lamp body 30 is placed on the outer edge of the mounting base 20, together with the peripheral edge of the upper half opening of the upper part 11b of the pedestal 11 that overlaps below the mounting base 20. The outer periphery which overlaps is fixed by the fastening band 33 which fastens over a perimeter. Clamps 34 that are detachably engaged with each other are provided at both ends of the fastening band 33.

  Further, as a component for supplying power to the light source 40, a power supply transformer 61 for the light source 40 and a circuit board 62 for lighting control of the light source 40 as well as a manually operated changeover switch 63 are provided on the mount 20. Etc. are also arranged. Here, the transformer 61 is for reducing the current of a predetermined magnitude supplied from an external constant current source and supplying it to the LED board 41. As shown in FIG. 13, the transformer 61 is fixed in a state in which the transformer 61 is pressed from above by a mounting bracket 60 while being fitted in a recess inside the flange portion 23 on the mounting base 20. In addition, the mounting bracket 60 is constructed between the boundary parts which divide the opening part 55 in the fins 54a and 54b before and behind the heat sink 50 into two.

  The circuit board 62 is screwed to the upper surface of the mounting bracket 60 in a state of being separated by a spacer. Further, a changeover switch 63 is disposed on one end side of the upper surface portion of the mounting bracket 60 so as to be separated via another mounting bracket 64. The fins 54 of the heat sink 50 extend so as to surround the periphery of the mounting bracket 60 in a state where related parts are mounted in this way. The cables and cords connected to the related parts extend downward through the communication hole 21 in the mounting base 20, pass through the inside of the base 11, and extend from the lower end side to the outside.

Next, the operation of the runway lamp 10 according to the present embodiment will be described.
The light source 40 of the runway lamp 10 uses an LED, which is a semiconductor element, instead of a conventional light bulb such as a halogen lamp. Thereby, as a characteristic of LED, it is low power consumption, long life, the effort of replacement | exchange etc. decreases, and power consumption can also be restrained cheaply. However, in the sealed lamp body 30, sufficient heat dissipation measures are necessary to suppress the temperature rise of the LED that is a high heat generation source as much as possible and protect the LED itself and other related components.

  As a heat dissipation measure, the runway lamp 10 includes a heat sink 50 that dissipates heat generated by the light source 40. Since the heat sink 50 is assembled to the mounting base 20 integrally, the heat received by the heat sink 50 is quickly transmitted to the mounting base 20 as it is. Therefore, the structure for dissipating heat generated from the heat sink 50 is not limited to the heat sink 50, and the mounting base 20 can be used as it is. In this way, the front and back surfaces of the mounting base 20 also become heat dissipation surfaces, and the effective heat dissipation area from the mounting base 20 to the surroundings as well as the heat sink 50 increases, so that the heat dissipation efficiency can be further enhanced.

  The light source 40 uses the heat sink 50 itself as a support and radiates light in both directions by being supported on both sides of the heat sink 50. In other words, the two LED boards 41A and 41B forming the main part of the light sources 40 on both sides are directly attached on the outer surfaces of the side surface parts 52 and 53 of the heat sink 50, respectively. Therefore, it is not necessary to prepare a support for attaching the light source 40 as a separate part, and the number of parts and the number of assembly steps can be reduced. Moreover, since the heat generated from the light sources 40 on both sides is directly transmitted to the heat sink 50 as it is, it can be radiated more quickly.

  More specifically, the heat generated while the LED of the light source 40 is turned on is transmitted from the outer surface side of the side surfaces 52 and 53 of the heat sink 50 to the inner surface side, and is transmitted to the fins 54 arranged in parallel between the inner surface sides. Heat is dissipated. Here, the heat transmitted to the front and rear fins 54 a and 54 b is directly transmitted from the fins 54 a and 54 b to the mounting base 20. The mounting base 20 has a disk shape that supports the lamp body 30 and has a large surface area. In particular, the bottom surface is exposed to the outside of the mounting base 20, so that heat transferred from the heat sink 50 through the fins 54a and 54b is quickly dissipated. Is done. Thereby, the heat dissipation efficiency can be further increased.

  A gap between the fins 54 in the heat sink 50 forms a ventilation space continuous in the vertical direction in the heat sink 50. Thereby, when the air heated by the heat radiation of each fin 54 rises, the flow rises smoothly without being interrupted or staying on the way. Furthermore, in the upper surface portion 51 of the heat sink 50, since the gap between the upper end edges of the fins 54 is opened as a gap, it is possible to prevent heat from being trapped in the heat sink 50.

  In addition, regarding the positional relationship between the related components arranged in the storage space in the heat sink 50, most of the LED boards 41 </ b> A and 41 </ b> B are positioned above the transformer 61 and the circuit board 62. Therefore, in the sealed lamp body 30, the air heated and raised by the heat radiation from the fins 54 does not go to the transformer 61 or the like, and the situation where the transformer 61 or the like is heated can be prevented.

  In this manner, related parts such as the transformer 61 are stored in a storage space secured on the inside of the heat sink 50 on the mounting base 20. Here, the fins 54 of the heat sink 50 are arranged such that their lower end edges are at heights that avoid the storage space, except for the fins 54 on both sides. As described above, in the storage space secured in advance, the related parts can be arranged so as not to interfere with the fins 54 and the like of the heat sink 50.

  More specifically, among the related parts, the transformer 61 is fixed on the mounting base 20 in the storage space while being pressed from above by the mounting bracket 60. Thereby, the transformer 61 can be reliably fixed, and the heat generated by the transformer 61 can be efficiently transmitted to the mounting base 20 via the mounting bracket 60.

  The circuit board 62 is screwed to the upper surface of the mounting bracket 60 in a state of being separated by a spacer. As described above, the mounting bracket 60 for fixing the transformer 61 can be used as a structure for supporting the circuit board 62 as it is. Further, the changeover switch 63 can be arranged on one end side of the upper surface portion of the mounting bracket 60 so as to be separated by another mounting bracket 64.

Next, installation of the runway lamp 10 will be described.
The runway lamp 10 is installed along both sides extending in the longitudinal direction of the runway 1, as shown in FIG. A pedestal 11 is fixed in advance at predetermined installation locations along both sides of the runway 1, and a mounting base 20 is attached to the pedestal 11. Here, the mounting direction (direction) of the mounting base 20 is determined such that the reference line L is parallel to the center line 1 a of the runway 1. In addition, it is good to provide the uneven | corrugated etc. which contact only in the above-mentioned specific direction in the contact part of the mounting base 20 and the base 11. FIG.

  The light distribution characteristics in both directions of the runway lamp 10 need to be adjusted to different specifications depending on the installation location and application (runway end lamp). In accordance with this specification, a plurality of conventional runway lights with different horizontal angles were prepared. In this runway light 10, the heat sink 50 which determines light distribution of the light source 40 is provided as a separate body from the mounting base 20, and the components are shared by combining them later.

  That is, when assembling a separate heat sink 50 on the mounting base 20, the horizontal angle of the heat sink 50 with respect to the mounting base 20 can be adjusted so that any specification can be met. Therefore, the main structure inside the lamp body, which has conventionally been prepared according to the specifications, can be easily configured by the common mounting base 20 and heat sink 50.

  When the heat sink 50 is assembled on the mount 20, the horizontal angle of the heat sink 50 with respect to the mount 20 can be set to a desired angle by the horizontal angle setting means. In the horizontal angle setting means, the horizontal angle of one pattern arbitrarily selected from a plurality of patterns prepared in advance according to the specifications with reference to the reference line L (specific direction) of the mounting base 20. Can be set.

  Specifically, as shown in FIG. 16, when the horizontal angle of the pattern 1 corresponding to a combination of white light / white light or the like is set, the heat sink 50 is attached to the four attachment side screw holes 73 and 73a forming the illustrated combination. The screw 71 is penetrated. The mounting screws 71 having such an arrangement are engaged with the four fixed-side screw holes 72 forming the group illustrated on the mounting base 20 side.

  Here, the four fixed-side screw holes 72 that make a set selectively match the set-side screw holes 73 and 73 that make the set, and the others do not match, so the mounting screw 71 is erroneously engaged. There is no. Similarly, in the other patterns 2 and 3, the heat sink 50 can be easily and reliably fixed to the mounting base 20 at the horizontal angle for each pattern. The mounting base 20 and the heat sink 50 are provided with direction marks 74 and 75 for the convenience of assembly.

  As described above, the adjustment of the horizontal angle that determines the light distribution direction of the runway lamp 10 can be set in advance when the heat sink 50 is assembled to the mounting base 20. As a result, at the site where the runway lamp 10 is installed, the unit assembled in advance may be simply positioned and attached to the pedestal 11 in a uniform direction. Thereby, the setting of the horizontal angle in the runway lamp 10 can be performed easily and reliably, and the run work of the runway lamp 10 can be performed quickly. Of course, not only the installation but also the installation work at the time of maintenance or replacement can be performed quickly.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to the above-described embodiments, and there are changes and additions within the scope not departing from the gist of the present invention. Are also included in the present invention. For example, in the above-described embodiment, a runway lamp (runway end lamp) has been described as an example of an aerial lamp. However, the type of aerial lamp is not limited to a runway lamp, and can be widely applied to various other aerial lights. it can.

Further, the semiconductor light emitting element constituting the light source 40 is not limited to the LED, and may be configured to include an LD (semiconductor laser) or the like as another semiconductor light emitting element.
In addition, when replacing the light source 40, it suffices to replace the mounting base 20 and the heat sink 50 together, and such replacement work can be easily and quickly performed.

  The air lamp according to the present invention is not limited to a runway lamp or runway end lamp that illuminates two directions, and can be widely applied to various other air lamps.

DESCRIPTION OF SYMBOLS 10 ... Runway light 11 ... Base 20 ... Mounting base 21 ... Communication hole 22 ... Mounting screw 23 ... Flange part 24 ... Mounting hole 30 ... Light body 40 ... Light source 41A, 41B, 41C, 41D ... LED board 42 ... Lens array 43 ... Convex lens part 50 ... Heat sink 51 ... Top part 52,53 ... Side part 54 ... Fin 55 ... Opening part 56 ... Mounting piece 60 ... Mounting bracket 61 ... Transformer 62 ... Circuit board 63 ... Changeover switch 64 ... Mounting bracket 71 ... Mounting screw 72 ... Fixed side screw hole 73, 73a ... Mounting side screw hole

Claims (9)

In the aviation light that is installed in the airfield and guides the aircraft by light,
A mounting base that supports the lamp body, a light source that is disposed in the lamp body and includes a semiconductor element, and a heat sink that dissipates heat generated by the light source,
The heat sink is provided as a separate body on the mounting base,
The light source is supported on at least both sides of the heat sink and emits light in both directions.   The heat sink includes plate-like side portions for attaching the light source on both sides thereof, and a plurality of fins for dissipating heat from the light source are integrally provided in parallel between the inner surfaces of both side surface portions. The aircraft light according to claim 1.   The aviation light according to claim 2, wherein the heat sink has the plurality of fins arranged around the storage space so as to secure a storage space for storing other related parts on the mounting base. .   The said heat sink has the opening part connected to the said storage space in each said fin located in the front and back, The air lamp of Claim 3 characterized by the above-mentioned.   5. A power supply component for the light source is fixed on the mounting base in a state where the power supply for the light source is pressed from above by a mounting bracket in the storage space on the mounting base. Airlight as described in.   6. The air lamp according to claim 5, wherein a circuit board for controlling lighting of the light source is mounted on the mounting bracket as the related component in the storage space on the mounting base. The mounting base is fixed substantially horizontally at a predetermined installation location,
When assembling the heat sink on the mounting base, a horizontal angle setting means is provided for setting a horizontal angle of the heat sink relative to the mounting base to one pattern arbitrarily selected from a plurality of predetermined patterns. An aerial light according to claim 1, 2, 3, 4, 5 or 6.   The horizontal angle setting means is provided on the mounting base and the heat sink, and includes a plurality of sets of screws and screw holes that match at different positions for each of the plurality of patterns. Airlight. The screw hole is
A plurality of the mounting bases are provided along the circumferential direction, and at least two of them are fixed-side screw holes forming a set corresponding to each of the plurality of patterns,
A plurality of the heat sinks, and at least two of the heat sinks include attachment-side screw holes that selectively match the fixed-side screw holes forming the set for each of the plurality of patterns;
The screw is a plurality of mounting screws that are common to the plurality of patterns, penetrate through the mounting side screw hole of the heat sink, and engage with the fixed side screw hole of the mounting base. Airlight as described in.

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