JP7406848B2 - LED lighting equipment - Google Patents

Description

The present invention relates to LED lighting equipment.

2. Description of the Related Art LED lighting equipment using LEDs has become popular as an alternative lighting device to, for example, fluorescent lamps. Patent Document 1 discloses an example of a conventional LED lighting fixture. The LED lighting device disclosed in the document includes a light source section having a plurality of LEDs arranged on an LED board, and a cover that covers the light source section. The cover is made of a material that transmits light from the light source and has a cylindrical shape. In the light source section, a plurality of LEDs are mounted on both sides of a single elongated substrate. With such a configuration, this LED lighting equipment emits light on both sides of the LED board in the thickness direction. An example of the use of such an LED lighting fixture is, for example, a self-luminous signboard at a store. Since self-luminous signboards are visible from both the front side and the back side, LED lighting equipment that can emit light from both sides is suitable.

JP2012-204187A

However, since a plurality of LEDs are mounted on both sides of one LED board, supporting members made of metal, for example, are not provided on both the front and back sides of the LED board. For this reason, there is a problem in that the rigidity of the LED board (light source section) is insufficient and undue deflection occurs during the manufacturing process.

The present invention was conceived under the above-mentioned circumstances, and an object of the present invention is to provide an LED lighting fixture that can suppress problems caused by insufficient rigidity of the light source section.

The LED lighting equipment provided by the present invention includes a light source section having a first LED board and a second LED board, each of which has an elongated shape with a first direction as its longitudinal direction and on which a plurality of LEDs are mounted; A first surface having an elongated shape with one direction as the longitudinal direction and facing one side in a second direction that is perpendicular to the first direction and on which the first LED board is disposed, and the first surface having the first direction as the longitudinal direction. a support member that is elongated and has a second surface facing the other side in the second direction and on which the second LED board is disposed; and a support member that accommodates the light source section and the support member and transmits light from the LED. an LED lighting device, wherein each of the support members has a long and narrow shape with the first direction as the longitudinal direction, and the first support members are spaced apart from each other with a gap in the second direction. and a connecting part connecting the first part and the second part, the first part having the first surface, and the second part having the second surface. It is characterized by having

In a preferred embodiment of the present invention, the connecting portion is connected to the first portion and increases in distance from the first portion in a third direction that is perpendicular to the first direction and the second direction. It has a first inclined part which is inclined so as to approach the second part in the direction.

In a preferred embodiment of the present invention, the connecting portion is connected to the second portion and is inclined such that the farther it is from the second portion in the third direction, the closer it is to the first portion in the second direction. It has a second slope.

In a preferred embodiment of the present invention, the dimension in the third direction of the second portion is larger than the dimension in the third direction of the first portion, and the first inclined portion is connected to the second portion.

In a preferred embodiment of the present invention, the support member has a pair of connecting portions on both sides of the first portion and the second portion in the third direction.

In a preferred embodiment of the present invention, the power supply unit includes a power supply component and a power supply board on which the power supply component is mounted, and further includes a power supply unit that supplies power to the LED, and at least a part of the power supply unit is connected to the supporting member. It is housed in the cavity of the member.

In a preferred embodiment of the present invention, the thickness of at least one of the first part, the second part, and the connecting part is equal to the thickness of at least one of the first LED board, the second LED board, and the power supply board. It's thicker than it is.

According to the present invention, problems caused by insufficient rigidity of the light source section can be suppressed.

Other features and advantages of the invention will become more apparent from the detailed description given below with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an LED lighting fixture according to a first embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a principal part perspective view which shows the LED lighting fixture based on 1st Embodiment of this invention. (a) is a plan view showing an LED lighting fixture according to a first embodiment of the present invention, and (b) is a front view. (a) is a left side view showing the LED lighting device according to the first embodiment of the present invention, and (b) is a right side view. FIG. 1 is an enlarged exploded perspective view showing an LED lighting fixture according to a first embodiment of the present invention. FIG. 1 is an enlarged exploded perspective view showing an LED lighting fixture according to a first embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an enlarged perspective view of a main part of an LED lighting device according to a first embodiment of the present invention. FIG. 3B is a cross-sectional view taken along line VIII-VIII in FIG. 3(b). 1 is an enlarged cross-sectional perspective view showing an LED lighting fixture according to a first embodiment of the present invention. FIG. 3A is a cross-sectional view of a main part taken along the line XX in FIG. 3(a). FIG. 3B is a sectional view of a main part taken along the line XI-XI in FIG. 3(b). (a) is an enlarged plan view of the main part showing the support member of the LED lighting device according to the first embodiment of the present invention, and (b) is an enlarged bottom view of the main part. FIG. 12A is a cross-sectional view taken along line XIII-XIII in FIG. 12(a). FIG. 3 is an enlarged cross-sectional perspective view showing an LED lighting device according to a second embodiment of the present invention. FIG. 2 is a sectional view of a main part of an LED lighting device according to a second embodiment of the present invention. It is a sectional view showing the support member of the LED lighting equipment concerning a 2nd embodiment of the present invention. (a) is a sectional view showing an LED lighting device according to a third embodiment of the present invention, (b) is a sectional view showing a first modification, and (c) is a sectional view showing a second modification. (c) is a cross-sectional view showing a third modification.

Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

Terms such as "first", "second", etc. in this disclosure are used merely as labels and are not intended to impose any permutation on those objects.

<First embodiment>
1 to 13 show an LED lighting device according to a first embodiment of the present invention. The LED lighting device of this embodiment includes a support member 1, a light source section 2, a cover 3, caps 4A, 4B, inner holders 5A, 5B, an outer holder 6, and a power supply section 7. The LED lighting fixture A1 is an elongated lighting device whose longitudinal direction is in the x direction, and in this embodiment, the lighting device has a shape similar to a straight tube fluorescent lamp. Further, the LED lighting fixture A1 can emit light on both sides in the z direction. The use of the LED lighting fixture A1 is not particularly limited, and is used, for example, as a light source for a self-luminous signboard in a store.

FIG. 1 is a perspective view showing an LED lighting fixture A1. FIG. 2 is a perspective view of the main parts of the LED lighting fixture A1. FIG. 3(a) is a plan view showing the LED lighting fixture A1, and FIG. 3(b) is a front view. FIG. 4(a) is a left side view showing the LED lighting fixture A1, and FIG. 4(b) is a right side view. FIG. 5 is an enlarged exploded perspective view showing the LED lighting fixture A1. FIG. 6 is an enlarged exploded perspective view showing the LED lighting fixture A1. FIG. 7 is an enlarged perspective view of the main parts of the LED lighting fixture A1. FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 3(b). FIG. 9 is an enlarged cross-sectional perspective view showing the LED lighting fixture A1. FIG. 10 is a sectional view of a main part taken along line XX in FIG. 3(a). FIG. 11 is a sectional view of a main part taken along the line XI-XI in FIG. 3(b). FIG. 12(a) is an enlarged plan view of the main part showing the support member of the LED lighting fixture A1, and FIG. 12(b) is an enlarged bottom view of the main part. FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG. 12(a). In these figures, the x direction corresponds to the first direction, the z direction corresponds to the second direction, and the y direction corresponds to the third direction.

[Support member 1]
The support member 1 supports the light source section 2, and in this embodiment is housed in the cover 3, as shown in FIGS. 5, 6, and 8 to 11. As shown in FIGS. 8 to 13, the support member 1 of this embodiment includes a first part 11, a second part 12, a pair of connecting parts 13, a pair of first holding parts 14, and a pair of second holding parts 15. and a cavity 19. The material of the support member 1 is not particularly limited, and in the illustrated example, it is made of metal such as aluminum. The support member 1 having such a configuration is suitable for dissipating heat from the light source section 2. The support member 1 of this embodiment has a constant cross-sectional shape along the yz plane.

The first portion 11 is an elongated portion having a longitudinal direction in the x direction, a width direction in the y direction, and a thickness direction in the z direction. The first portion 11 has a first surface 111 . The first surface 111 is an elongated surface whose longitudinal direction is the x direction and whose width direction is the y direction, and faces one side in the z direction.

The second portion 12 is an elongated portion having a longitudinal direction in the x direction, a width direction in the y direction, and a thickness direction in the z direction. The second portion 12 has a second surface 121 . The second surface 121 is an elongated surface whose longitudinal direction is the x direction and whose width direction is the y direction, and faces one side in the z direction, which is the opposite side to the side toward which the first surface 111 faces.

The cavity 19 is interposed between the first part 11 and the second part 12. In other words, the first part 11 and the second part 12 are spaced apart from each other in the z direction with the gap 19 in between.

A pair of connecting parts 13 connects the first part 11 and the second part 12. In this embodiment, a pair of connecting portions 13 are provided on both sides of the first portion 11 and second portion 12 in the y direction, but a configuration may be adopted in which the connecting portions 13 are provided only on one side in the y direction. .

The specific configuration of the connecting portion 13 is not particularly limited, and in this embodiment, the connecting portion 13 includes a first inclined portion 131, a second inclined portion 132, an arcuate portion 133, and a pair of ribs 134.

The first inclined portion 131 is connected to the first portion 11 and is inclined such that the further away from the first portion 11 in the y direction, the closer to the second portion 12 in the z direction. In the illustrated example, the first inclined portion 131 has an elongated shape whose longitudinal direction is in the x direction.

The second inclined portion 132 is connected to the second portion 12 and is inclined such that the further away from the second portion 12 in the y direction, the closer to the first portion 11 in the z direction. In the illustrated example, the second inclined portion 132 has an elongated shape whose longitudinal direction is in the x direction.

In the illustrated example, the angles that the first inclined portion 131 and the second inclined portion 132 make with the y direction are approximately the same. Further, the dimensions in the y direction of the first inclined portion 131 and the second inclined portion 132 are approximately the same.

The arcuate portion 133 connects the y-direction end of the first sloped portion 131 and the y-direction end of the second sloped portion 132. The arcuate portion 133 has an arcuate cross section perpendicular to the x direction. In the illustrated example, both ends of the arc-shaped portion 133 are connected to the first inclined portion 131 and the second inclined portion 132 . The arcuate portion 133 is used, for example, to attach a screw that fixes the inner end plate portion 52A of the inner holder 5A shown in FIG. 11 and the support member 1.

The pair of ribs 134 are connected to the outside of the arcuate portion 133 in the y direction. The pair of ribs 134 are spaced apart from each other in the z direction. The shape of the rib 134 is not particularly limited, and in the illustrated example, it is an elongated shape whose longitudinal direction is the x direction.

The pair of first holding parts 14 protrude in the z direction from near both ends of the first part 11 in the y direction. In the illustrated example, the first holding portion 14 has an L-shaped cross section that includes a portion that stands up in the z direction and a portion that projects inward in the y direction. The pair of first holding parts 14 are parts for holding a first LED board 21, which will be described later.

The pair of second holding parts 15 protrudes in the z direction from near both ends of the second part 12 in the y direction. In the illustrated example, the second holding portion 15 has an L-shaped cross section that includes a portion that stands up in the z direction and a portion that projects inward in the y direction. The pair of second holding parts 15 are parts for holding a second LED board 22, which will be described later. The distance in the y direction between the pair of first holding parts 14 and the distance in the y direction between the pair of second holding parts 15 are approximately the same.

[Light source part 2]
The light source unit 2 is a light source of the LED lighting fixture A1, and in this embodiment, as shown in FIGS. 2 and 5 to 10, it has a first LED board 21, a second LED board 22, and a plurality of LEDs 23.

The first LED board 21 has a plurality of LEDs 23 mounted on one side, and has a long rectangular shape with the x direction as the longitudinal direction, the y direction as the width direction, and the z direction as the thickness direction. The first LED board 21 includes a base material made of an insulating material such as glass epoxy resin or ceramics, and a wiring pattern (not shown) formed on the base material. As shown in FIGS. 8 and 9, the first LED board 21 is placed on the first surface 111 of the first portion 11 of the support member 1. As shown in FIGS. Further, in the illustrated example, the first LED board 21 is held by a pair of first holding parts 14. The first LED board 21 may be bonded, for example, to the first surface 111 of the first portion 11 with an adhesive, an adhesive tape, or the like.

The second LED board 22 has a plurality of LEDs 23 mounted on one side, and has an elongated rectangular shape with the x direction as the longitudinal direction, the y direction as the width direction, and the z direction as the thickness direction. The second LED board 22 includes a base material made of an insulating material such as glass epoxy resin or ceramics, and a wiring pattern (not shown) formed on the base material. As shown in FIGS. 8 and 9, the second LED board 22 is placed on the second surface 121 of the second portion 12 of the support member 1. As shown in FIGS. Further, in the illustrated example, the second LED board 22 is held by a pair of second holding parts 15. The second LED board 22 may be bonded, for example, to the second surface 121 of the second portion 12 with an adhesive, an adhesive tape, or the like.

The plurality of LEDs 23 are light emitters that emit light when energized, and are arranged in the x direction on one side of the first LED board 21 and one side of the second LED board 22. In the illustrated example, the plurality of LEDs 23 are arranged in one row in the x direction, but may be arranged in multiple rows in the x direction.

The LED 23 includes an LED chip (not shown). The LED 23 may be composed of a single LED chip or may include components other than the LED chip. An example of the configuration of the LED 23 is a configuration including a module substrate or a lead on which an LED chip is mounted, and a light-transmitting resin that covers the LED chip. The color of light emitted by the LED chip is not particularly limited, and for example, the LED chip emits blue light. Further, the light-transmitting resin is formed of, for example, a material in which a fluorescent material is mixed into a transparent resin. This fluorescent material emits yellow light when excited by blue light from the LED chip. With such a configuration, the LED 23 can be configured to emit white light.

[Cover 3]
The cover 3 accommodates the support member 1 and the light source section 2, and is made of a material that allows light from the plurality of LEDs 23 of the light source section 2 to pass through. As shown in FIGS. 1, 3, 5, and 6, in this embodiment, the cover 3 has a cylindrical shape whose longitudinal direction is in the x direction. The material of the cover 3 is not particularly limited, and is made of transparent or translucent resin that allows light from the light source section 2 to pass through. In this embodiment, the cover 3 is made of a translucent milky white resin.

As shown in FIG. 8, the cover 3 of this embodiment has a pair of ribs 31. As shown in FIG. The pair of ribs 31 protrudes inward in the y direction from the inner circumferential surface of the cover 3 and extends long in the x direction. The pair of ribs 31 are for fixing or positioning the cover 3 to the inner holder 5A.

[Cap 4A, 4B]
As shown in FIGS. 1 to 6, the cap 4A and the cap 4B are arranged separately at both ends of the support member 1 and the cover 3 in the x direction. The material of the cap 4A and the cap 4B is not particularly limited, and is made of a resin material such as ABS resin, for example.

The cap 4A is disposed on one side in the x direction with respect to the support member 1 and the cover 3, and closes an opening of the cover 3 on one side in the x direction. As shown in FIGS. 4, 6, 10, and 11, in this embodiment, the cap 4A includes an end plate portion 41A, a cylindrical portion 42A, a cable hole 43A, a plurality of bolt holes 44A, and a plurality of positioning protrusions. 45A, and a plurality of bolt caps 46A.

The end plate portion 41A is a plate-shaped portion located at one end in the x direction. In the illustrated example, the end plate portion 41A has a disk shape and is substantially perpendicular to the x direction. The cylindrical portion 42A is a cylindrical portion extending from the end plate portion 41A toward the other side in the x direction. In the illustrated example, the cylindrical portion 42A has a tapered cylindrical shape whose diameter increases as the distance from the end plate portion 41A in the x direction increases.

The cable hole 43A passes through the end plate portion 41A in the x direction. The cable hole 43A is for inserting a cable 81, which will be described later. The plurality of bolt holes 44A penetrate the end plate portion 41A in the x direction. The bolt hole 44A is for inserting a bolt for fixing the cap 4A and an inner holder 5A, which will be described later. As shown in FIG. 4, in the illustrated example, two bolt holes 44A are provided.

As shown in FIG. 6, the plurality of positioning protrusions 45A are provided on the outer surface of the cylindrical portion 42A and protrude from the cylindrical portion 42A. The plurality of positioning protrusions 45A are for positioning the outer holder 6 with respect to the cap 4A. The number of the plurality of positioning protrusions 45A is not particularly limited, and in the illustrated example, two positioning protrusions 45A are provided on both sides in the x direction.

As shown in FIG. 5, the plurality of bolt caps 46A are for hermetically closing the plurality of bolt holes 44A, and are made of rubber or silicone resin, for example. The number of bolt caps 46A is not particularly limited, and in the illustrated example, two bolt caps 46A are provided.

The cap 4B is arranged on the other side in the x direction opposite to the cap 4A with respect to the support member 1 and the cover 3, and closes the opening of the cover 3 on the other side in the x direction. As shown in FIGS. 4 and 5, in this embodiment, the cap 4B includes an end plate portion 41B, a cylindrical portion 42B, a plurality of bolt holes 44B, a plurality of positioning protrusions 45B, and a plurality of bolt caps 46B.

The end plate portion 41B is a plate-shaped portion located at the other end in the x direction. In the illustrated example, the end plate portion 41B has a substantially elliptical plate shape and is inclined with respect to the x direction. The cylindrical portion 42B is a cylindrical portion extending from the end plate portion 41B toward one side in the x direction. In the illustrated example, the cylindrical portion 42B has a tapered cylindrical shape whose diameter increases as the distance from the end plate portion 41B in the x direction increases.

The plurality of bolt holes 44B penetrate the end plate portion 41B in the x direction. The bolt hole 44B can be used to insert a bolt for fixing desired parts of the LED lighting device A1 to each other. As shown in FIG. 4, in the illustrated example, two bolt holes 44B are provided. Note that in this embodiment, no bolt is provided to pass through the bolt hole 44B.

As shown in FIG. 5, the plurality of positioning protrusions 45B are provided on the outer surface of the cylindrical portion 42B and protrude from the cylindrical portion 42B. The plurality of positioning protrusions 45B are for positioning the outer holder 6 with respect to the cap 4B. The number of the plurality of positioning protrusions 45B is not particularly limited.

As shown in FIG. 6, the plurality of bolt caps 46B are for hermetically closing the plurality of bolt holes 44B, and are made of, for example, rubber or silicone resin. The number of bolt caps 46B is not particularly limited, and in the illustrated example, two bolt caps 46B are provided.

[Inner holder 5A, 5B]
The inner holder 5A and the inner holder 5B are for holding the support member 1 in a space surrounded by the cover 3, the cap 4A, and the cap 4B. The material of the inner holder 5A and the inner holder 5B is not particularly limited, and is made of a resin material such as ABS resin, for example.

As shown in FIGS. 6, 7, 10, and 11, the inner holder 5A includes an outer end plate portion 51A, an inner end plate portion 52A, a support member engaging portion 53A, a support plate portion 54A, and a plurality of locking claws. It has 55A.

The outer end plate portion 51A is located on one side in the x direction and is a plate-shaped portion. In the illustrated example, the outer end plate portion 51A is perpendicular to the x direction. The inner end plate portion 52A is located on the other side in the x direction and is a plate-shaped portion. In the illustrated example, the inner end plate portion 52A is perpendicular to the x direction. Further, the inner end plate portion 52A has a substantially annular shape when viewed in the x direction.

The support plate portion 54A connects the outer end plate portion 51A and the inner end plate portion 52A, and is an elongated plate-shaped portion whose longitudinal direction is in the x direction. In the illustrated example, the support plate portion 54A is perpendicular to the y direction.

The support member engaging portion 53A protrudes from the inner end plate portion 52A toward the other side in the x direction. The support member engaging portion 53A is a portion that achieves holding of the support member 1 by the inner holder 5A by engaging with one side end of the support member 1 in the x direction.

The plurality of locking claws 55A protrude from the support plate portion 54A in the y direction. In the illustrated example, a plurality of locking claws 55A are provided at both ends of the support plate portion 54A in the Z direction. The locking claw 55A has a hook-shaped portion at the tip in the y direction. The plurality of locking claws 55A are for holding the power supply section 7.

As shown in FIG. 5, the inner holder 5B has a support member engaging portion 53B. The support member engaging portion 53B is for realizing the holding of the support member 1 by the inner holder 5B by engaging with the other end of the support member 1 in the x direction. The inner holder 5B is fixed to the cap 4B by, for example, engaging or fitting into a rib (not shown) provided on the cap 4B.

[Outer holder 6]
The outer holder 6 is for sealing the gap between the cap 4A and the cover 3 or the gap between the cap 4B and the cover 3 by being loaded onto the cap 4A or the cap 4B from the outside. As shown in FIGS. 1 and 2, two outer holders 6 are provided in this embodiment.

As shown in FIGS. 5 and 6, one outer holder 6 is loaded in the joint between the cap 4A and the cover 3, and the other outer holder 6 is loaded in the joint between the cap 4B and the cover 3. has been done. The material of the outer holder 6 is not particularly limited, and is made of a resin material such as ABS resin, for example.

In this embodiment, the outer holder 6 has a half-cylindrical portion 61 and a half-cylindrical portion 62. The half-cylindrical portion 61 and the half-cylindrical portion 62 are members that constitute the cylindrical outer holder 6 by engaging with each other.

The half-cylindrical portion 61 has an engaging claw 611, an engaging portion 612, and a plurality of positioning holes 613. The engaging claw 611 and the engaging portion 612 are for engaging with the half cylinder portion 62. The engaging claw 611 protrudes in the y direction and has a hook-shaped portion at the tip. The engaging portion 612 has a shape in which a hook-shaped portion can be engaged. The plurality of positioning holes 613 are for positioning by engaging with the positioning protrusion 45A of the cap 4A or the positioning protrusion 45B of the cap 4B.

The half-cylindrical portion 62 has an engaging claw 621, an engaging portion 622, and a plurality of positioning holes 623. The engaging claw 621 and the engaging portion 622 are for engaging with the half-cylindrical portion 61. The engaging claw 621 protrudes in the y direction and has a hook-shaped portion at the tip. The engagement claw 621 is provided at a position facing the engagement claw 621 of the half-cylindrical portion 61. The engaging portion 622 has a shape in which a hook-like portion can be engaged, and is provided at a position facing the engaging claw 611 of the half-cylindrical portion 61. When the half-cylindrical portion 61 and the half-cylindrical portion 62 are combined, the engaging claw 611 and the engaging portion 622 are engaged with each other, and the engaging portion 612 and the engaging claw 621 are engaged with each other. The plurality of positioning holes 623 are for positioning by engaging with the positioning protrusion 45A of the cap 4A or the positioning protrusion 45B of the cap 4B.

In this embodiment, two O-rings 82 are provided, as shown in FIGS. 5, 6, 10, and 11. The O-ring 82 is a member for sealing the gap between the cap 4A and the cover 3 and the gap between the cap 4B and the cover 3, and is made of, for example, rubber or silicone resin. When the outer holder 6 is loaded, the O-ring 82 is fixed by an appropriate pressing force.

[Power supply section 7]
The power supply unit 7 supplies power for lighting the plurality of LED lighting fixtures A1. For example, the power supply unit 7 converts commercial AC power into DC power suitable for lighting the LED lighting fixture A1 (light source unit 2). In this embodiment, as shown in FIGS. 6, 7, 10, and 11, the power supply unit 7 includes a power supply board 71 and a plurality of electronic components 72. In the illustrated example, the power supply section 7 is entirely housed in the cap 4A.

The power supply board 71 has a base material made of, for example, glass epoxy resin, and a wiring pattern (not shown) formed on the base material. As shown in FIGS. 6 and 10, in the illustrated example, the power supply board 71 has a plurality of locking parts 711. The locking portion 711 is a part of the power supply board 71 that is formed so as to have a side along the y direction. A plurality of locking claws 55A of the inner holder 5A engage with the plurality of locking portions 711. Thereby, the power supply board 71 is held detachably with respect to the inner holder 5A. Note that, unlike the illustrated example, part or all of the power supply section 7 may be accommodated in the cavity 19 of the support member 1.

The plurality of electronic components 72 are for constructing an electric circuit that realizes the power conversion function of the power supply section 7. The plurality of electronic components 72 are mounted on the power supply board 71, and the number and type thereof are not particularly limited. Examples of the plurality of electronic components 72 include a transformer, a capacitor, a diode, a resistor, and the like. A cable 81 is connected to the power supply section 7 . Further, a cable (not shown) is connected from the power supply section 7 to the first LED board 21 and the second LED board 22.

Next, the operation of the LED lighting fixture A1 will be explained.

According to this embodiment, as shown in FIG. 8, the first LED board 21 is arranged on the first surface 111, and the second LED board 22 is arranged on the second surface 121. The first surface 111 is the surface of the first portion 11 , and the second surface 121 is the surface of the second portion 12 . The first part 11 and the second part 12 are spaced apart in the z direction with a gap 19 in between, and are connected by a connecting part 13. Thereby, the support member 1 has increased rigidity against bending and twisting, and it is possible to suppress undue deflection, etc. during the manufacturing process of the first LED board 21 and the second LED board 22. Therefore, according to the LED lighting fixture A1, problems caused by insufficient rigidity of the light source section 2 can be suppressed. Note that since the support member 1 has the void portion 19, it is possible to reduce the weight of the support member 1 while improving the rigidity of the support member 1.

Further, the connecting portion 13 of this embodiment includes a first slope portion 131 and a second slope portion 132. By having the first inclined part 131 and the second inclined part 132, the connecting part 13 has a mountain shape that projects in the y direction when viewed in the z direction. Thereby, the rigidity of the support member 1 can be further increased.

Further, the support member 1 has a pair of connecting portions 13 on both sides of the first portion 11 and the second portion 12 in the y direction. This is advantageous in further improving the rigidity of the support member 1, and can prevent uneven deformation of the support member 1.

14-17 illustrate other embodiments of the invention. In addition, in these figures, the same or similar elements as in the above embodiment are given the same reference numerals as in the above embodiment.

<Second embodiment>
14 to 16 show an LED lighting fixture according to a second embodiment of the present invention. FIG. 14 is a cross-sectional perspective view of the main parts of the LED lighting fixture A2 of this embodiment. FIG. 15 is a sectional view showing the LED lighting fixture A2. FIG. 16 is a sectional view showing the support member 1 of the LED lighting fixture A2.

In this embodiment, unlike the LED lighting fixture A1 described above, the y-direction dimension of the second portion 12 is larger than the y-direction dimension of the first portion 11. The center of the first part 11 in the y direction and the center of the second part 12 in the y direction substantially coincide. Furthermore, the distance in the y direction between the pair of first holding parts 14 and the distance in the y direction between the pair of second holding parts 15 are approximately the same.

The connecting portion 13 of this embodiment differs from the connecting portion 13 of the LED lighting fixture A1 described above, in that it has a first inclined portion 131 and an arcuate portion 133, and does not have a second inclined portion 132. The first inclined portion 131 is connected to the end of the second portion 12 in the y direction via an arcuate portion 133. With such a configuration, the support member 1 of this embodiment has a substantially trapezoidal shape when viewed in the x direction.

As shown in FIG. 15, in this embodiment, the power supply section 7 is housed in the cavity 19 of the support member 1. In the illustrated example, all of the power supply unit 7 (power supply board 71) is accommodated in the cavity 19, but unlike the illustrated example, only a part of the power supply unit 7 (power supply board 71) is housed in the cavity 19. The structure may be such that it is housed in the section 19.

Also according to this embodiment, problems caused by insufficient rigidity of the light source section 2 can be suppressed. Furthermore, in this embodiment, as shown in FIG. 15, at least a portion of the power supply section 7 (power supply board 71) is accommodated in the cavity 19 of the support member 1. Thereby, the size of the power supply section 7 housed in the cap 4A can be reduced or omitted, and the cap 4A can be made smaller. Thereby, it is possible to increase the proportion that the support member 1 and the cover 3 occupy with respect to the total length of the LED lighting fixture A2 in the x direction, and as a result, the first LED board 21 and the second LED board 22 can be extended. This contributes to making a wider area of the LED lighting fixture A2 a light emitting area.

<Third embodiment>
FIG. 17 shows an LED lighting fixture according to a third embodiment of the present invention. Figure (a) is a sectional view showing the LED lighting fixture A3 of this embodiment. FIG. 2B is a sectional view showing an LED lighting fixture A31 which is a first modification of the LED lighting fixture A3. FIG. 3(c) is a sectional view showing an LED lighting fixture A32 which is a second modification example of the LED lighting fixture A3. Same figure (d)
is a sectional view showing an LED lighting fixture A33 which is a third modification example of the LED lighting fixture A3.

The support member 1 of the LED lighting fixture A3 shown in FIG. 3A includes a first part 11, a second part 12, and a pair of connecting parts 13, as in the above-described embodiment. In this embodiment, the connecting portion 13 is an elongated plate-shaped portion whose longitudinal direction is in the x direction and is perpendicular to the y direction. Thereby, the support member 1 of this embodiment has a substantially rectangular shape when viewed in the x direction. Note that such a shape of the support member 1 is for convenience in explaining the thickness relationship of each part of the support member 1 described below, and the specific shape of the connecting portion 13 is not particularly limited.

In the LED lighting fixture A3, the second portion 12 is thicker than the first portion 11 and the pair of connecting portions 13. The thickness of the second part 12 is thicker than the thickness of the first LED board 21 and the second LED board 22. Further, the thickness of the second part 12 may be thicker than the thickness of the power supply board 71 of the power supply part 7. The first portion 11 and the pair of connecting portions 13 are thinner than the first LED board 21, the second LED board 22, and the power supply board 71.

In the LED lighting fixture A31 shown in FIG. 4B, the first portion 11 and the second portion 12 are thicker than the pair of connecting portions 13. The thickness of the first part 11 and the second part 12 is thicker than the thickness of the first LED board 21 and the second LED board 22. Moreover, the thickness of the first part 11 and the second part 12 may be thicker than the thickness of the power supply board 71 of the power supply part 7. The thickness of the pair of connecting parts 13 is thinner than that of the first LED board 21, the second LED board 22, and the power supply board 71.

In the LED lighting fixture A32 shown in FIG. 3(c), the second portion 12 and the pair of connecting portions 13 are thicker than the first portion 11. The thickness of the second part 12 and the pair of connecting parts 13 is thicker than the thickness of the first LED board 21 and the second LED board 22. Moreover, the thickness of the second part 12 and the pair of connecting parts 13 may be thicker than the thickness of the power supply board 71 of the power supply part 7. The thickness of the first part 11 is thinner than the first LED board 21, the second LED board 22, and the power supply board 71.

In the LED lighting fixture A33 shown in FIG. 2D, the first part 11, the second part 12, and the pair of connecting parts 13 are thicker than the first LED board 21 and the second LED board 22. Moreover, the thickness of the first part 11, the second part 12, and the pair of connecting parts 13 may be thicker than the thickness of the power supply board 71 of the power supply part 7.

Such an embodiment can also suppress problems caused by insufficient rigidity of the light source section 2. Also, like LED lighting fixtures A3, A31, A32, and A33, at least one of the first part 11, second part 12, and connecting part 13 is made thicker than the first LED board 21 and the second LED board 22. This is preferable for improving the rigidity of the support member 1. In order to improve the rigidity of the support member 1, it is preferable to make at least one of the first part 11, the second part 12, and the connecting part 13 thicker than the power supply board 71 accommodated in the cavity 19.

Moreover, the thickness of at least one of the first part 11, the second part 12, the first slope part 131, and the second slope part 132 in the LED lighting fixture A1 is made thicker than the first LED board 21 and the second LED board 22. You can. Also with such a configuration, the rigidity of the support member 1 can be further increased. Moreover, the thickness of at least one of the first part 11, second part 12, and first inclined part 131 in the LED lighting fixture A2 may be made thicker than the first LED board 21 and the second LED board 22. Also with such a configuration, the rigidity of the support member 1 can be further increased.

The LED lighting equipment according to the present invention is not limited to the embodiments described above. The specific configuration of each part of the LED lighting fixture according to the present invention can be modified in various ways.

A1, A2, A3, A31, A32, A33: LED lighting fixture 1: Support member 2: Light source section 3: Cover 4A, 4B: Caps 5A, 5B: Inner holder 6: Outer holder 7: Power supply section 11: First part 12 : Second part 13 : Connecting part 14 : First holding part 15 : Second holding part 19 : Gap part 21 : First LED board 22 : Second LED board 23 : LED
31: Ribs 41A, 41B: End plate portions 42A, 42B: Cylindrical portion 43A: Cable holes 44A, 44B: Bolt holes 45A, 45B: Positioning projections 46A, 46B: Bolt cap 51A: Outer end plate portion 52A: Inner end plate Parts 53A, 53B: Support member engaging part 54A: Support plate part 55A: Locking claws 61, 62: Semi-cylindrical part 71: Power supply board 72: Electronic component 81: Cable 82: O-ring 111: First surface 121: No. 2nd surface 131: First inclined portion 132: Second inclined portion 133: Arc-shaped portion 134: Ribs 611, 621: Engaging claws 612, 622: Engaging portions 613, 623: Positioning hole 711: Locking portion

Claims (4)

a light source section that includes a first LED board and a second LED board that are elongated in a first direction, on which a plurality of LEDs are mounted;
a first surface facing one side in a second direction that is perpendicular to the first direction and on which the first LED board is disposed; and a second surface facing the other side in the second direction and on which the second LED board is disposed; a support member having;
An LED lighting fixture comprising a cover that accommodates the light source section and the support member and transmits light from the LED,
The support member includes a first part having the first surface, a second part having the second surface, a pair of connecting parts connecting the first part and the second part, and a pair of connecting parts connecting the first part and the second part. a gap interposed between the second part and the second part;
A third direction dimension of the second part that is perpendicular to the first direction and the second direction is larger than the third direction dimension of the first part,
The pair of connecting parts has an arcuate part between the first part and the second part,
The LED lighting device is characterized in that the second part is thicker than the first part and the connecting part, and thicker than the first LED board and the second LED board . a light source section that includes a first LED board and a second LED board that are elongated in a first direction, on which a plurality of LEDs are mounted;
a first surface facing one side in a second direction that is perpendicular to the first direction and on which the first LED board is disposed; and a second surface facing the other side in the second direction and on which the second LED board is disposed; a support member having;
An LED lighting fixture comprising a cover that accommodates the light source section and the support member and transmits light from the LED,
The support member includes a first part having the first surface, a second part having the second surface, a pair of connecting parts connecting the first part and the second part, and a pair of connecting parts connecting the first part and the second part. a gap interposed between the second part and the second part;
A third direction dimension of the second part that is perpendicular to the first direction and the second direction is larger than the third direction dimension of the first part,
The pair of connecting parts has an arcuate part between the first part and the second part,
The first part and the second part are thicker than the connecting part and thicker than the first LED board and the second LED board , the LED lighting fixture. a light source section that includes a first LED board and a second LED board that are elongated in a first direction, on which a plurality of LEDs are mounted;
a first surface facing one side in a second direction that is perpendicular to the first direction and on which the first LED board is disposed; and a second surface facing the other side in the second direction and on which the second LED board is disposed; a support member having;
An LED lighting fixture comprising a cover that accommodates the light source section and the support member and transmits light from the LED,
The support member includes a first part having the first surface, a second part having the second surface, a pair of connecting parts connecting the first part and the second part, and a pair of connecting parts connecting the first part and the second part. a gap interposed between the second part and the second part;
A third direction dimension of the second part that is perpendicular to the first direction and the second direction is larger than the third direction dimension of the first part,
The pair of connecting parts has an arcuate part between the first part and the second part,
The second part and the connecting part are thicker than the first part and thicker than the first LED board and the second LED board , the LED lighting fixture. a light source section that includes a first LED board and a second LED board that are elongated in a first direction, on which a plurality of LEDs are mounted;
a first surface facing one side in a second direction that is perpendicular to the first direction and on which the first LED board is disposed; and a second surface facing the other side in the second direction and on which the second LED board is disposed; a support member having;
An LED lighting fixture comprising a cover that accommodates the light source section and the support member and transmits light from the LED,
The support member includes a first part having the first surface, a second part having the second surface, a pair of connecting parts connecting the first part and the second part, and a pair of connecting parts connecting the first part and the second part. a gap interposed between the second part and the second part;
A third direction dimension of the second part that is perpendicular to the first direction and the second direction is larger than the third direction dimension of the first part,
The pair of connecting parts has an arcuate part between the first part and the second part,
The first part, the second part, and the connecting part are thicker than the first LED board and the second LED board, the LED lighting fixture.

Images