JP5895187B2 - LED lighting fixtures - Google Patents

Description

  The present invention relates to an LED lighting apparatus that uses an LED as a light source and is applied to a street light in an outdoor passage or a park.

2. Description of the Related Art Conventionally, there has been known an LED lighting apparatus having a reflective portion in a predetermined region on both sides of a central axis passing through the origin of an LED on a lens surface and a convex lens portion in regions on both sides of the reflective portion (for example, Patent Document 1).
In Patent Document 1, the convex lens unit refracts light emitted from the origin of the LED and irradiates diffused light having a first angle range in a direction perpendicular to the center line of both reflection units.
In Patent Document 1, the reflection part irradiates diffused light having a second angle range in a direction perpendicular to the center line of both reflection parts by total reflection and refraction of light emitted from the origin of the LED.
Japanese Patent Laid-Open No. 2004-260688 has a reflection angle of a first angle range in a direction perpendicular to the center line of both reflection portions with a sharp angle emitted from the end portion of the LED and high-intensity light by total reflection and refraction. The diffused light having the third angle range wider than the second angle range is irradiated.

Japanese Patent Laying-Open No. 2010-205605 (FIG. 3, claim 1)

Patent Document 1 can obtain a desired light distribution pattern by effectively using light emitted from both ends of an LED caused by leakage light such as glare.
In general, LED lighting fixtures applied to street lamps are set so that the irradiation range is maximized in all directions, but there are cases where it is desired to cut the front and rear irradiation depending on the installation location.
Therefore, as shown in FIG. 11, an LED lighting apparatus 100 in which a louver 101 made of sheet metal is attached to an apparatus main body 102 has been proposed.
In such a conventional LED lighting apparatus 100, the louver 101 is fixed to the apparatus main body 102 by screwing a screw (not shown) into the apparatus main body 102.
However, in such a conventional LED lighting apparatus 100, since the attachment position of the louver 101 is one, the attachment position of the louver 101 cannot be changed.
Therefore, such a conventional LED lighting apparatus 100 cannot arbitrarily and easily adjust the irradiation range according to the installation location of the louver 101.

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is to provide an LED lighting apparatus that can arbitrarily and easily adjust the irradiation range according to the installation location of the light shielding member, and can be readjusted repeatedly. It is to provide.

An LED lighting apparatus according to the present invention is mounted on a pillar, and has an apparatus main body that opens downward, a mounting base provided inside the apparatus main body, a substrate that is mounted on the mounting base and on which a plurality of LEDs are provided. An LED light-emitting unit including a lens provided below the plurality of LEDs, a translucent panel that covers a lower opening in the instrument body, and between the LED light-emitting unit and the translucent panel A plurality of plate-shaped louvers , a main body portion supporting each of the plurality of louvers, and a flange portion connected to the upper end of the main body portion and attached to the lower surface of the instrument main body. A light shielding member, and when the direction of arrangement of the louvers is a first direction and the direction orthogonal to the first direction is a second direction, each louver is formed by the instrument body. In a state of being attached to the pillars, the first louvers are arranged in a row so as to be sequentially away from the pillars, and the louvers are formed so that gaps are formed between the louvers in plan view. The plurality of louvers are disposed at a position close to one end of the two ends along the first direction of the instrument body. A first louver disposed; a second louver adjacent to the first louver; and an end of the instrument body adjacent to the second louver and along the first direction. A third louver disposed at a position close to the other end, and the first to third louvers are parallel to the lower surface of the instrument body when viewed from below in plan view. Each of 1 and 2 louvers , Having a first height along the first direction, having a first width along the second direction, and at the end on the other end side of the instrument body, the first A first portion in which a notch having a size smaller than the first width and smaller than the first width is formed, and an end of the first portion on the one end side of the instrument body. And a second portion projecting at a second height along the first direction and having a second width, and each of the first and second louvers is attached to the instrument body. when the inclined with respect to the lower surface, the first portion is adapted to close the lens of the LED light emitting portion than the second portion, the first portion Ri said lens and a non-contact der, The third louver has the first height along the first direction and the first width along the second direction. A third portion having the first portion, the third portion being connected to an end portion on the one end portion side of the instrument main body, projecting at the second height along the first direction, and the first portion A fourth portion having a second width that is narrower than the width of the third portion, and when the third louver is tilted with respect to the lower surface of the instrument body, the third portion is , as well as close to the lens of the LED light emitting portion than the fourth portion, the third portion Ru contactless der and the lens.

In the LED lighting apparatus according to the present invention, a part of the light emitted from the LED light emitting unit and traveling obliquely downward through the notch formed in the first portion of the second louver is obtained. , Ru is shielded by the fourth portion of the third louver.

In the LED lighting device according to the present invention, when the light shielding member is attached to the device main body, the third and second portions are directed from the end of the device main body closer to the column toward the end farther from the column. The first louvers are arranged in this order, and the first portions of the first and second louvers are arranged on the side close to the pillar, and the first and second louvers are arranged in the order of the first louvers. The second portion is disposed on the side far from the column, the third portion of the third louver is disposed on the side close to the column, and the fourth portion of the third louver is disposed on the side far from the column. The first arrangement to be arranged, and the first, second, and third louvers arranged in this order from the end of the instrument body closer to the column toward the end far from the column; and The first portion of each of the first and second louvers is disposed on a side far from the pillar, and the first and second louvers The second portion of each of the louvers is disposed on a side closer to the column, the third portion of the third louver is disposed on a side farther from the column, and the fourth portion of the third louver is disposed a second arrangement of placing the side closer to said post, Ru can be selected der.

In the LED lighting apparatus according to the present invention, when the first arrangement is selected, the plurality of LEDs emit light obliquely downward when the apparatus body attached to the pillar is viewed from the side. Among them, a part of the light which goes obliquely downward on the side opposite to the side where the instrument main body is located with respect to the pillar is shielded by the first to third louvers, and the second arrangement is When selected, when the instrument body attached to the pillar is viewed from the side, of the light emitted by the plurality of LEDs obliquely downward, the side on which the instrument body is located with reference to the pillar A part of the light traveling obliquely downward is blocked by the first to third louvers .

The LED lighting apparatus according to the present invention, the light blocking member, Ru slidably attached to the lower surface of the instrument body.

  According to the LED lighting apparatus according to the present invention, there is an effect that the irradiation range can be arbitrarily and easily adjusted according to the installation location of the light shielding member, and can be readjusted repeatedly.

The external appearance perspective view seen from diagonally downward of the state which opened the panel of the LED lighting fixture of 1st Embodiment which concerns on this invention Single-piece | unit external appearance perspective view of the light-shielding member of LED lighting fixture of 1st Embodiment which concerns on this invention The top view of the light-shielding member of the LED lighting fixture of 1st Embodiment which concerns on this invention FIG. 3 is an external perspective view of the LED lighting apparatus according to the first embodiment of the present invention before the light blocking member is attached. The external appearance perspective view at the time of the attachment of the light-shielding member at the time of back light shielding of the LED lighting fixture of 1st Embodiment which concerns on this invention The external appearance perspective view after the attachment of the light-shielding member at the time of back light shielding of the LED lighting fixture of 1st Embodiment which concerns on this invention The external appearance perspective view at the time of attachment of the light shielding member at the time of front light shielding of the LED lighting fixture of 1st Embodiment which concerns on this invention The external appearance perspective view after the attachment of the light shielding member at the time of front light shielding of the LED lighting fixture of 1st Embodiment which concerns on this invention FIG. 3 is an external perspective view illustrating optical characteristics of the LED lighting apparatus according to the first embodiment of the present invention when the light is shielded from the rear and the light from the front. The external appearance perspective view seen from diagonally downward of the state which opened the panel of the LED lighting fixture of 2nd Embodiment which concerns on this invention External perspective view of a conventional LED lighting fixture

Hereinafter, LED lighting fixtures according to a plurality of embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
As shown in FIG. 1, the LED lighting fixture 10 of 1st Embodiment which concerns on this invention is the translucent property which covers the instrument main body 11 attached to the upper end part of the pillar 91 embed | buried under the ground, and the front surface of the instrument main body 11. As shown in FIG. And a panel 12 having.
The instrument body 11 is made of, for example, aluminum die casting, and a mounting base 13 is fixed to the panel 12 side.
The mounting base 13 is a plate member having a length in a direction away from the column 91 which is the longitudinal direction of the instrument body 11 obliquely upward.
The mounting base 13 has a first mounting portion 14 in the center, a second mounting portion 15 on the left side of the first mounting portion 14 in FIG. 1, and the first mounting portion 14 in FIG. 1. The third attachment portion 16 is provided on the right side portion of the.
In the mounting base 13, the first mounting portion 14 is arranged farther from the instrument body 11 than the second mounting portion 15 and the third mounting portion 16.
The mounting base 13 has a pair of flange portions 17 and 18 fixed to the instrument main body 11 on both sides, and fixing screws 19 and 20 are arranged at the center positions of the flange portions 17 and 18, respectively.

And the 1st LED light emission part 22 which comprises a part of light emission part 21 is attached to the 1st attachment part 14 of the mount 13, and the other part of the light emission part 21 to the 2nd attachment part 15 of the mount 13 The 2nd LED light emission part 23 which comprises is attached.
In addition, a third LED light-emitting part 24 that constitutes the remaining part of the light-emitting part 21 is attached to the third mounting part 16 of the mounting base 13.
In the first LED light emitting unit 22, a plurality of LEDs 26 are sealed on a single circuit board 25, and a single lens 27 is attached to cover the LEDs 26.
In the second LED light emitting unit 23, a plurality of LEDs 29 are sealed on a single circuit board 28, and a single lens 30 is attached to cover the LEDs 29.
In the third LED light emitting unit 24, a plurality of LEDs 32 are sealed on a single circuit board 31, and a single lens 33 is attached to cover the LEDs 32.

A light shielding member 37 having a first louver 34, a second louver 35, and a third louver 36 is attached to the fixing screws 19 and 20 of the mount 13.
The light shielding member 37 has a pair of flange portions 39 and 40 on the side portion of the main body 38 on which the louvers 34, 35 and 36 are provided.
In the light shielding member 37, rear light shielding screw cutouts 41 and 42 and front light shielding screw cutouts 43 and 44 are formed in the flange portions 39 and 40.
The light shielding member 37 has a rear light shielding arrangement by fixing the rear light shielding screw cutouts 41 and 42 to the fixing screws 19 and 20. Unlike this, the front light shielding screw cutouts 43 and 44 are fixed to the fixing screws 20 and 20. By being fixed to 19, it becomes the arrangement | positioning of front light-shielding.

In the light shielding member 37, the louvers 34, 35, and 36 are disposed obliquely with respect to the optical axes of the LED light emitting units 22, 23, and 24, and follow the arrangement direction of the LED light emitting units 22, 23, and 24. Are equipped.
In the light shielding member 37, the louvers 34, 35, and 36 are spaced apart from the light emitting surfaces of the lenses 27, 30, and 33.
The number of louvers 34, 35, 36 is not limited, and may be one, two, or four or more.
The panel 12 has a hinge member 45 at its distal end connected to the distal end of the instrument body 11, and the base end of the panel 12 is screwed to the proximal end of the instrument body 11, thereby opening the instrument body 11. It is attached to the instrument body 11 so as to cover the part.

Next, the detailed structure of the light shielding member 37 will be described.
As shown in FIG. 2, the light shielding member 37 has outer protrusions 46, 47, 48 that protrude in directions away from the LED light emitting units 22, 23, 24 on the louvers 34, 35, 36.
The outer protrusions 46, 47, 48 can reduce glare by blocking the light component from the first LED light emitting unit 22 in the center of the light emitting unit 21.
The light blocking member 37 has an inner notch 49 and an inner notch 50 that are cut out in a rectangular shape in the direction away from the LED light emitting units 22, 23, 24 in the first louver 34 and the second louver 35, respectively.
At this time, when the light shielding member 37 is arranged for rear light shielding, the third louver 36 on the proximal end side of the instrument main body 11 closest to the column 91 has no inner notch.

As shown in FIG. 3, each louver 34, 35, 36 is arranged at a non-overlapping position in plan view.
That is, the lower end portion of the first louver 34 and the outer protrusion 47 of the second louver 35 do not overlap in plan view, and the lower end portion of the second louver 35 and the outer protrusion 48 of the third louver 36 overlap in plan view. Not.
At this time, the light component that has passed through the inner notch 49 of the first louver 34 is shielded by the outer protrusion 47 of the second louver 35, and similarly, the light component that has passed through the inner notch 50 of the second louver 35 Light is shielded by the outer protrusion 48 of the third louver 36.
Therefore, a sufficient distance from the first louver 34 and the second louver 35 to the light exit surfaces of the lenses 27, 30, 33 can be secured.

Next, the attachment procedure of the light shielding member 37 in the LED lighting apparatus 10 will be described.
First, the case where the light shielding member 37 is arranged in the rear light shielding will be described. In this operation, the arrangement of the light shielding member 37 is determined in consideration of the installation environment at the installation location.
As shown in FIG. 4, the LED lighting fixture 10 to which the light blocking member 37 is not attached is installed at the installation location.
As shown in FIG. 5, a light shielding member 37 is prepared, and the rear light shielding screw notches in the flange portions 39 and 40 of the light shielding member 37 with the first louver 34 facing the side opposite to the upper column 91 side. 41 and 42 are inserted through the fixing screws 19 and 20.
Then, as shown in FIG. 6, when the fixing screws 19 and 20 are screwed in, the light shielding member 37 is attached to the instrument body 11 in a rear light shielding arrangement.
Thereby, in the LED lighting apparatus 10, the light component directed toward the column 91 among the light components from the light emitting unit 21 is blocked by the first louver 34, the second louver 35, and the third louver 36 of the light blocking member 37. Thus, the column 91 side is not irradiated.
At this time, since the third louver 36 does not have an inner notch, the light component from the light emitting unit 21 irradiated on the third louver 36 does not leak backward.

Next, the case where the light shielding member 37 is disposed in front light shielding will be described.
As shown in FIG. 7, the light shielding member 37 is arranged in the opposite direction to the state of FIG. 5, and the first louver 34 is directed to the column 91, which is below, in the flange portions 39 and 40 of the light shielding member 37. The front light shielding screw notches 43 and 44 are inserted into the fixing screws 20 and 19.
Then, as shown in FIG. 8, when the fixing screws 20 and 19 are screwed in, the light shielding member 37 is attached to the instrument body 11 in a rear light shielding arrangement.
Accordingly, in the LED lighting device 10, the light component directed from the light emitting unit 21 toward the side opposite to the column 91 has the first louver 34, the second louver 35, and the third louver of the light blocking member 37. The light is shielded by 36 and is not irradiated.
Also at this time, since the third louver 36 does not have an inner notch, the light component from the light emitting unit 21 irradiated on the third louver 36 does not leak forward.

Next, the optical characteristics of the LED lighting apparatus 10 will be described.
When the light blocking member 37 is not attached, the LED lighting fixture 10 has the irradiation range of the range X1 because the light component from the light emitting unit 21 is irradiated to the column 91 side and the side opposite to the column 91.
On the other hand, when the light blocking member 37 is set at the rear light blocking position, the LED luminaire 10 has a light component directed toward the column 91 among the light components from the light emitting unit 21. The light is shielded by 34, 35 and 36, and the column 91 side is not irradiated.
Therefore, an irradiation range of the range X2 that does not irradiate the column 91 side is set.
On the other hand, when the light blocking member 37 is set to the front light blocking position, the LED luminaire 10 has a light component directed to the side opposite to the column 91 among the light components from the light emitting unit 21. The louvers 34, 35, and 36 are shielded from light so that the opposite side of the pillar 91 is not irradiated.
Therefore, an irradiation range of a range X3 that does not irradiate the side opposite to the column 91 is set.
As described above, the LED lighting apparatus 10 can easily switch between the rear light shielding and the front light shielding only by reversing the mounting direction of the light shielding member 37.

  As described above, according to the LED lighting apparatus 10 according to the first embodiment of the present invention described above, the irradiation range can be arbitrarily and easily adjusted according to the installation location of the light shielding member 37, and can be readjusted repeatedly.

  Moreover, according to the LED lighting fixture 10, it is possible to secure a sufficient distance from the first louver 34 and the second louver 35 to the light emitting surfaces of the lenses 27, 30, 33.

  According to the LED lighting apparatus 10, the outer protrusions 46, 47, 48 of the louvers 34, 35, 36 are dazzled by blocking the light component from the first LED light emitting unit 22 at the center of the light emitting unit 21. Can be reduced.

  Furthermore, according to the LED lighting apparatus 10, since the third louver 36 does not have an inner notch, leakage of light components from the light emitting unit 21 irradiated on the third louver 36 can be prevented.

  Furthermore, according to the LED lighting apparatus 10, it is possible to easily switch between the rear light shielding and the front light shielding only by reversing the mounting direction of the light shielding member 37.

(Second Embodiment)
Next, the LED lighting fixture of 2nd Embodiment which concerns on this invention is demonstrated.
Note that, in the following second embodiment, components that are the same as those in the first embodiment described above or components that are functionally similar are denoted by the same or corresponding reference numerals in the drawings, or the description is simplified. Omitted.

As shown in FIG. 10, the LED lighting fixture 60 of the second embodiment according to the present invention is applied with a mounting base 61 having a central portion as a dummy. A first attachment portion 62 is provided on the side portion, and a second attachment portion 63 is provided on the right side portion in FIG.
In addition, the first LED light-emitting part 22 constituting a part of the light-emitting part 21 is attached to the first attachment part 62 of the attachment base 61, and the other part of the light-emitting part 21 is attached to the second attachment part 63 of the attachment base 61. The 2nd LED light emission part 23 which comprises is attached.
And the light shielding member 37 is attached similarly to 1st Embodiment.

  According to the LED lighting apparatus 60, since the center part of the mount 61 is a dummy, power consumption can be reduced.

In addition, in the LED lighting fixture of this invention, a pillar, an instrument main body, a panel, etc. are not limited to each embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.
In the present embodiment, the rear light shielding or front light shielding arrangement of the light shielding member 37 can be changed by switching the mounting direction. However, other than this, for example, the rear light shielding or front light shielding arrangement of the light shielding member 37 is attached. The direction may be switched and the part may be slidable.
Further, the light shielding member 37 may be configured to be simply slidable so that the light shielding range can be changed.

10, 60 LED lighting fixture 21 light emitting part 22 first LED light emitting part (LED light emitting part)
23 3rd LED light emission part (LED light emission part)
24 3rd LED light emission part (LED light emission part)
34 First louver
35 Second louver
36 Third louver
37 Shading member 46, 47, 48 Outer protrusion 49, 50 Inner notch

Claims (5)

An instrument body attached to the pillar and opening downward;
A mounting base provided inside the instrument body;
An LED light-emitting unit that is attached to the mount and includes a substrate on which a plurality of LEDs are provided, and a lens that is provided below the plurality of LEDs ,
A translucent panel covering the lower opening in the instrument body;
A plurality of plate-shaped louvers disposed between the LED light emitting section and the translucent panel, a main body supporting each of the plurality of louvers, and connected to an upper end of the main body A light shielding member comprising a flange portion attached to the lower surface of the instrument body,
Have
When the arrangement direction of the louvers is a first direction and the direction orthogonal to the first direction is a second direction,
The louvers are arranged in a row so as to sequentially move away from the pillars in a state where the instrument body is attached to the pillars, and the louvers are formed with a gap between the louvers in plan view. And arranged so as to be separated from each other by a predetermined distance in the first direction,
The plurality of louvers include a first louver disposed at a position close to one of the two ends of the instrument main body along the first direction, and a first louver adjacent to the first louver. Two louvers, a third louver disposed adjacent to the second louver and at a position close to the other of the two ends of the instrument body along the first direction; Have
In a plan view of the first to third louvers viewed from below as being parallel to the lower surface of the instrument body,
Each of the first and second louvers is
A first height along the first direction, a first width along the second direction, and the first end of the instrument body on the other end side; A first portion formed with a notch having a size smaller than a height and smaller than the first width;
A second portion of the first portion connected to an end portion on the one end portion side of the instrument body and projecting at a second height along the first direction and having a second width;
And when each of the first and second louvers is tilted with respect to the lower surface of the instrument body, the first portion has the lens of the LED light emitting unit more than the second portion. with close to, the first portion Ri said lens and a non-contact der,
The third louver is
A third portion having the first height along the first direction and having the first width along the second direction;
The third portion is connected to an end portion on the one end side of the instrument main body, protrudes at the second height along the first direction, and has a width narrower than the first width. A fourth portion having a second width;
And when the third louver is tilted with respect to the lower surface of the instrument body, the third portion is located closer to the lens of the LED light emitting unit than the fourth portion. together with the third part the lens and the non-contact der Ru LED luminaire. In the LED lighting fixture of Claim 1,
A part of the light emitted from the LED light-emitting portion and traveling obliquely downward through the notch formed in the first portion of the second louver is the second louver in the third louver. LED lighting fixture that will be blocked by 4 portions. In the LED lighting fixture of Claim 1 or Claim 2,
When attaching the light shielding member to the instrument body,
The device body is arranged in the order of the third, second, and first louvers from the end portion on the side close to the column to the end portion on the side far from the column, and the first and second The first portion of each of the louvers is disposed on a side close to the column, the second portion of each of the first and second louvers is disposed on a side far from the column, and the first portion of the third louver is disposed on the side of the third louver. A first arrangement in which a third portion is arranged on a side close to the pillar, and the fourth portion of the third louver is arranged on a side far from the pillar;
The first, second, and third louvers are arranged in this order from the end of the instrument body closer to the column toward the end far from the column, and the first, second The first portion of each of the louvers is disposed on a side far from the pillar, the second portion of each of the first and second louvers is disposed on a side closer to the pillar, and the first portion of the third louver is disposed on the side of the third louver. A second arrangement in which a third part is arranged on a side far from the pillar, and the fourth part of the third louver is arranged on a side near the pillar;
Selectable der Ru LED luminaire. In the LED lighting fixture of Claim 3 ,
When the first arrangement is selected, when the instrument body attached to the pillar is viewed from the side, the plurality of LEDs emit light obliquely downward with respect to the pillar. A part of the light that goes obliquely downward on the side opposite to the side where the instrument body is located is shielded by the first to third louvers,
When the second arrangement is selected, when the instrument body attached to the pillar is viewed from the side, the plurality of LEDs emit light obliquely downward with respect to the pillar. An LED lighting apparatus in which a part of light traveling obliquely downward on the side where the apparatus main body is located is shielded by the first to third louvers . In the LED lighting fixture of any one of Claim 1 thru | or 4,
The light blocking member is slidably mounted that LED lighting fixture to the lower surface of the instrument body.

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