JP7170306B2 - LED lighting equipment - Google Patents

Description

The present invention relates to LED lighting fixtures.

LED lighting fixtures using LEDs are popular as alternative lighting devices such as fluorescent lamps. Patent Literature 1 discloses an example of a conventional LED lighting fixture. The LED lighting fixture disclosed in the document includes a light source section having a plurality of LEDs arranged on an LED substrate, 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. The light source unit has a plurality of LEDs mounted on both sides of one elongated substrate. With such a configuration, this LED lighting fixture emits light on both sides in the thickness direction of the LED substrate. Examples of applications for such LED lighting fixtures include, for example, self-luminous signboards in stores. Since self-luminous signboards are visible from both the front side and the back side, LED lighting fixtures capable of emitting light from both sides are suitable.

JP 2012-204187 A

However, since a plurality of LEDs are mounted on both sides of one LED board, for example, metal support members are not provided on both the front and back surfaces of the LED board. For this reason, there is a problem that the rigidity of the LED substrate (light source section) is insufficient, and unreasonable bending occurs during the manufacturing process or the like.

The present invention has been conceived under the circumstances described above, and an object of the present invention is to provide an LED lighting fixture capable of suppressing problems due to insufficient rigidity of the light source section.

The LED lighting fixture provided by the present invention includes: a light source section having a first LED board and a second LED board each having a first direction as a longitudinal direction and having a plurality of LEDs mounted thereon; A first surface having an elongated shape with one direction as the longitudinal direction and facing one side in a second direction perpendicular to the first direction and having the first LED substrate disposed thereon, and the first direction being the longitudinal direction a support member having an elongated shape and a second surface facing the other side of the second direction and on which the second LED substrate is disposed; wherein each of the support members has an elongated shape whose longitudinal direction is the first direction, and the first support members are spaced apart from each other with a gap in the second direction. a portion and a second portion; and a connecting portion that connects the first portion and the second portion, the first portion has the first surface, and the second portion has 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 further extends from the first portion in a third direction perpendicular to the first direction and the second direction. It has a first sloped portion sloped in a direction toward said second portion.

In a preferred embodiment of the present invention, the connecting portion is connected to the second portion and is inclined so as to approach the first portion in the second direction as it separates from the second portion in the third 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 connects 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, a power supply component and a power supply board on which the power supply component is mounted are further provided, and a power supply unit for supplying power to the LED, at least a part of the power supply unit is connected to the support. 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 the thickness of at least one of the first LED board, the second LED board and the power supply board. Thicker than thick.

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

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

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the LED lighting fixture which concerns on 1st Embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a principal part perspective view which shows the LED lighting fixture which concerns 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 fixture according to the first embodiment of the present invention, and (b) is a right side view. 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; FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is a principal part expansion perspective view which shows the LED lighting fixture which concerns on 1st Embodiment of this invention. FIG. 3B is a cross-sectional view along line VIII-VIII of FIG. 3B; 1 is an enlarged cross-sectional perspective view showing an LED lighting fixture according to a first embodiment of the present invention; FIG. FIG. 4 is a cross-sectional view of a main part taken along line XX of FIG. 3(a); FIG. 3B is a cross-sectional view of a main part taken along line XI-XI of FIG. 3B; (a) is a main part enlarged plan view showing a support member of the LED lighting fixture according to the first embodiment of the present invention, and (b) is a main part enlarged bottom view. FIG. 12(a) is a cross-sectional view taken along line XIII-XIII of FIG. 12(a); FIG. 3 is an enlarged cross-sectional perspective view showing an LED lighting fixture according to a second embodiment of the present invention; FIG. 10 is a cross-sectional view of a main part showing an LED lighting fixture according to a second embodiment of the present invention; FIG. 5 is a cross-sectional view showing a support member of an LED lighting fixture according to a second embodiment of the present invention; (a) is a cross-sectional view showing an LED lighting fixture according to a third embodiment of the present invention, (b) is a cross-sectional view showing a first modification, and (c) is a second modification. FIG. 10C is a cross-sectional view showing a third modified example;

Preferred embodiments of the present invention will be specifically described below with reference to the drawings.

The terms "first", "second", etc. in this disclosure are used merely as labels and are not intended to impose any order on the objects.

<First embodiment>
1 to 13 show an LED lighting fixture according to a first embodiment of the invention. The LED lighting fixture of this embodiment includes a support member 1, a light source section 2, a cover 3, caps 4A and 4B, inner holders 5A and 5B, an outer holder 6 and a power supply section 7. As shown in FIG. The LED lighting fixture A1 is an elongated lighting device whose longitudinal direction is the x direction, and in the present embodiment, is a lighting device having a shape similar to a straight tube fluorescent lamp. Also, 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 it is used, for example, as a light source for self-luminous signboards in stores.

FIG. 1 is a perspective view showing an LED lighting fixture A1. FIG. 2 is a perspective view of essential parts showing 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 a main part showing 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 cross-sectional view of the main part taken along line XX in FIG. 3(a). FIG. 11 is a cross-sectional view of the essential part along line XI-XI in FIG. 3(b). (a) of FIG. 12 is an enlarged plan view of a main part showing a support member of the LED lighting fixture A1, and (b) is an enlarged bottom view of the main part. FIG. 13 is a cross-sectional view 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 is housed in the cover 3 as shown in FIGS. 5, 6 and 8 to 11 in this embodiment. As shown in FIGS. 8 to 13, the support member 1 of this embodiment includes a first portion 11, a second portion 12, a pair of connecting portions 13, a pair of first holding portions 14, and a pair of second holding portions 15. and a gap 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 part 11 is an elongated part 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 part 11 has a first surface 111 . The first surface 111 is an elongated surface having a longitudinal direction in the x direction and a width direction in the y direction, and faces one side in the z direction.

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

Gap 19 is interposed between first portion 11 and second portion 12 . In other words, the first portion 11 and the second portion 12 are separated from each other in the z direction with the gap portion 19 therebetween.

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

A specific configuration of the connecting portion 13 is not particularly limited, and in the present embodiment, the connecting portion 13 has 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 inclined so as to approach the second portion 12 in the z direction as it separates from the first portion 11 in the y direction. In the illustrated example, the first inclined portion 131 is elongated with the x direction as the longitudinal direction.

The second inclined portion 132 is connected to the second portion 12 and is inclined so as to approach the first portion 11 in the z direction as it separates from the second portion 12 in the y direction. In the illustrated example, the second inclined portion 132 is elongated with the x direction as the longitudinal direction.

In the illustrated example, the angles formed by the first inclined portion 131 and the second inclined portion 132 with the y direction are substantially the same. Also, the y-direction dimensions of the first inclined portion 131 and the second inclined portion 132 are substantially the same.

The arc-shaped portion 133 connects the y-direction end of the first inclined portion 131 and the y-direction end of the second inclined 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, for attaching a screw for fixing the inner end plate portion 52A of the inner holder 5A and the support member 1 shown in FIG.

A pair of ribs 134 are connected to the outer side of the arcuate portion 133 in the y direction. A 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 elongated with the x direction as the longitudinal direction.

The pair of first holding portions 14 protrude in the z direction from near both ends of the first portion 11 in the y direction. In the illustrated example, the first holding portion 14 has an L-shaped cross section having a portion that stands up in the z-direction and a portion that protrudes 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 portions 15 protrude in the z direction from near both ends of the second portion 12 in the y direction. In the illustrated example, the second holding portion 15 has an L-shaped cross section having a portion that stands up in the z-direction and a portion that protrudes 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 y-direction distance between the pair of first holding portions 14 and the y-direction distance between the pair of second holding portions 15 are substantially the same.

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

The first LED board 21 has a plurality of LEDs 23 mounted on one side, and has a 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 substrate 21 includes a base material made of an insulating material such as glass epoxy resin or ceramics, and wiring patterns (not shown) formed on the base material. As shown in FIGS. 8 and 9 , the first LED board 21 is arranged on the first surface 111 of the first portion 11 of the support member 1 . Also, in the illustrated example, the first LED board 21 is held by a pair of first holding portions 14 . The first LED substrate 21 may be bonded to the first surface 111 of the first portion 11 with an adhesive, an adhesive tape, or the like, for example.

The second LED board 22 has a plurality of LEDs 23 mounted on one side, and has a 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 substrate 22 comprises a base material made of an insulating material such as glass epoxy resin or ceramics, and wiring patterns (not shown) formed on the base material. As shown in FIGS. 8 and 9 , the second LED board 22 is arranged on the second surface 121 of the second portion 12 of the support member 1 . Also, in the illustrated example, the second LED board 22 is held by a pair of second holding portions 15 . The second LED board 22 may be bonded to the second surface 121 of the second portion 12 with an adhesive, an adhesive tape, or the like, for example.

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 consist of a single LED chip, or may include components other than the LED chip. A configuration example of the LED 23 includes, for example, a module substrate on which an LED chip is mounted or a lead, and a translucent resin covering the LED chip. The color of light emitted from the LED chip is not particularly limited, and for example, blue light is emitted. Also, the light-transmitting resin is made of, for example, a transparent resin mixed with a fluorescent material. 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 the light from the plurality of LEDs 23 of the light source section 2 to pass therethrough. As shown in FIGS. 1, 3, 5 and 6, in this embodiment, the cover 3 has a cylindrical shape with the x direction as the longitudinal direction. The material of the cover 3 is not particularly limited, and is made of a transparent or translucent resin or the like that allows the light from the light source section 2 to pass therethrough. In this embodiment, the cover 3 is made of translucent milky white resin.

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

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

The cap 4A is arranged on one side in the x direction with respect to the support member 1 and the cover 3, and closes the opening of the cover 3 on the 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 projections. 45A, with a plurality of bolt caps 46A.

The end plate portion 41A is a plate-like portion located at one end in the x direction. In the illustrated example, the end plate portion 41A is disc-shaped and substantially perpendicular to the x-direction. The tubular portion 42A is a tubular 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 with distance from the end plate portion 41A in the x direction.

The cable hole 43A penetrates the end plate portion 41A in the x direction. 43 A of cable holes are for inserting the below-mentioned cable 81. As shown in FIG. A plurality of bolt holes 44A penetrate the end plate portion 41A in the x direction. 44 A of bolt holes are for inserting the bolt for fixing the cap 4A and the inner holder 5A mentioned later. As shown in FIG. 4, two bolt holes 44A are provided in the illustrated example.

As shown in FIG. 6, the plurality of positioning projections 45A are provided on the outer surface of the tubular portion 42A and protrude from the tubular portion 42A. A plurality of positioning projections 45A are for positioning the outer holder 6 with respect to the cap 4A. The number 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 closing the plurality of bolt holes 44A in an airtight state, and are made of rubber or silicone resin, for example. The number of bolt caps 46A is not particularly limited, and two bolt caps 46A are provided in the illustrated example.

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 has an end plate portion 41B, a cylindrical portion 42B, multiple bolt holes 44B, multiple positioning protrusions 45B, and multiple bolt caps 46B.

The end plate portion 41B is a plate-like portion located at the other end in the x direction. In the illustrated example, the end plate portion 41B has a substantially elliptical shape and is inclined with respect to the x direction. The tubular portion 42B is a tubular 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 with distance from the end plate portion 41B in the x direction.

A plurality of bolt holes 44B penetrate the end plate portion 41B in the x direction. The bolt holes 44B can be used to insert bolts for fixing desired parts of the LED lighting fixture A1 to each other. As shown in FIG. 4, two bolt holes 44B are provided in the illustrated example. 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 tubular portion 42B and protrude from the tubular portion 42B. A plurality of positioning projections 45B are for positioning the outer holder 6 with respect to the cap 4B. The number of positioning protrusions 45B is not particularly limited.

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

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

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 engagement portion 53A, a support plate portion 54A and a plurality of locking claws. 55A.

The outer end plate portion 51A is located on one side in the x direction and is a plate-like 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-like portion. In the illustrated example, the inner endplate portion 52A is perpendicular to the x-direction. In addition, 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-like portion whose longitudinal direction is 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 realizes holding of the support member 1 by the inner holder 5A by engaging with one end of the support member 1 in the x direction.

A plurality of locking claws 55A protrude in the y direction from the support plate portion 54A. In the illustrated example, a plurality of locking claws 55A are provided at both ends in the z direction of the support plate portion 54A. The locking claw 55A has a hook-shaped portion at the tip in the y direction. 55 A of several latching claws are for holding|maintaining the power supply part 7. As shown in FIG.

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

[Outer holder 6]
The outer holder 6 seals 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 mounted on the joint between the cap 4A and the cover 3, and the other outer holder 6 is mounted on the joint between the cap 4B and the cover 3. It is The material of the outer holder 6 is not particularly limited, and is made of, for example, a resin material such as ABS resin.

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

The semi-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 its tip. The engaging portion 612 has a shape with which the hook-shaped portion can be engaged. The plurality of positioning holes 613 are for positioning by engaging with the positioning projections 45A of the cap 4A or the positioning projections 45B of the cap 4B.

The half cylinder 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 semi-cylindrical portion 61 . The engaging claw 621 protrudes in the y direction and has a hook-shaped portion at its tip. The engaging claw 621 is provided at a position facing the engaging claw 621 of the half cylinder portion 61 . The engaging portion 622 has a shape that allows the hook-like portion to engage with the engaging portion 622 , 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, and the engaging portion 612 and the engaging claw 621 are engaged. The plurality of positioning holes 623 are for positioning by engaging with the positioning projections 45A of the cap 4A or the positioning projections 45B of the cap 4B.

In this embodiment, as shown in FIGS. 5, 6, 10 and 11, two O-rings 82 are provided. 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 rubber or silicone resin, for example. The O-ring 82 is fixed by a moderate pressing force when the outer holder 6 is loaded.

[Power supply unit 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 section 7 has a power supply substrate 71 and a plurality of electronic components 72. FIG. In the illustrated example, the power supply section 7 is entirely housed in the cap 4A.

The power supply substrate 71 has a base material made of glass epoxy resin, for example, and a wiring pattern (not shown) formed on the base material. As shown in FIGS. 6 and 10 , in the illustrated example, the power board 71 has a plurality of locking portions 711 . The locking portion 711 is a portion formed so that a portion of the power supply board 71 has a side along the y direction. A plurality of locking claws 55A of the inner holder 5A are engaged with the plurality of locking portions 711 . Thereby, the power supply board 71 is detachably held with respect to the inner holder 5A. Note that, unlike the illustrated example, part or all of the power supply unit 7 may be configured to be accommodated in the gap 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 types thereof are not particularly limited. Examples of the plurality of electronic components 72 include transformers, capacitors, diodes, resistors, and the like. A cable 81 is connected to the power supply unit 7 . A cable (not shown) is connected from the power supply unit 7 to the first LED board 21 and the second LED board 22 .

Next, the action of the LED lighting fixture A1 will be described.

According to this embodiment, 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, as shown in FIG. 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 portion 11 and the second portion 12 are separated in the z-direction with a gap portion 19 interposed therebetween and are connected by a connecting portion 13 . As a result, the support member 1 has increased rigidity against bending and twisting, and it is possible to suppress unreasonable bending during the manufacturing process of the first LED substrate 21 and the second LED substrate 22 . Therefore, according to LED lighting fixture A1, the malfunction by lack of rigidity of the light source part 2 can be suppressed. In addition, since the support member 1 has the space 19 , the weight of the support member 1 can be reduced while improving the rigidity of the support member 1 .

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

The support member 1 also 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 for further improving the rigidity of the support member 1 and can prevent biased deformation of the support member 1 .

14-17 show another embodiment of the invention. In these figures, the same or similar elements as in the above embodiment are denoted by 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 invention. FIG. 14 is a fragmentary cross-sectional perspective view showing the LED lighting fixture A2 of this embodiment. FIG. 15 is a cross-sectional view showing the LED lighting fixture A2. FIG. 16 is a cross-sectional view showing the support member 1 of the LED lighting fixture A2.

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

Unlike the connecting portion 13 of the LED lighting fixture A1 described above, the connecting portion 13 of the present embodiment has the first inclined portion 131 and the arcuate portion 133 and does not have the second inclined portion 132 . The first inclined portion 131 is connected to the y-direction end of the second portion 12 via an arcuate portion 133 . With such a configuration, the support member 1 of the present 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 accommodated in the gap 19 of the support member 1 . In the illustrated example, the entire power supply section 7 (power supply board 71) is accommodated in the gap 19, but unlike the illustrated example, only a part of the power supply section 7 (power supply board 71) is enclosed in the gap. It may be configured to be accommodated in the portion 19 .

According to the present embodiment as well, problems due to insufficient rigidity of the light source section 2 can be suppressed. In addition, in the present embodiment, at least part of the power supply section 7 (power supply substrate 71) is accommodated in the space 19 of the support member 1, as shown in FIG. Thereby, the size of the power supply unit 7 accommodated in the cap 4A can be reduced or omitted, and the size of the cap 4A can be reduced. This makes it possible to increase the ratio of the support member 1 and the cover 3 to the total length in the x direction of the LED lighting fixture A2, which in turn allows the first LED board 21 and the second LED board 22 to 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 invention. FIG. 1(a) is a cross-sectional view showing the LED lighting fixture A3 of this embodiment. FIG. 1(b) is a cross-sectional view showing an LED lighting fixture A31, which is a first modification of the LED lighting fixture A3. FIG. 1(c) is a cross-sectional view showing an LED lighting fixture A32, which is a second modification of the LED lighting fixture A3. FIG. 4(d) is a cross-sectional view showing an LED lighting fixture A33, which is a third modification of the LED lighting fixture A3.

The support member 1 of the LED lighting fixture A3 shown in FIG. 4(a) has a first portion 11, a second portion 12 and a pair of connecting portions 13 as in the above-described embodiment. In this embodiment, the connecting portion 13 is an elongated plate-like portion whose longitudinal direction is the x direction and which 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. It should be noted that such a shape of the support member 1 is for the convenience of explanation of the plate thickness relationship of each portion 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. As shown in FIG. The thickness of the second part 12 is thicker than the thicknesses of the first LED substrate 21 and the second LED substrate 22 . Also, the thickness of the second portion 12 may be thicker than the thickness of the power supply substrate 71 of the power supply portion 7 . The first part 11 and the pair of connecting parts 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. 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 portion 11 and the second portion 12 may be thicker than the thickness of the power supply substrate 71 of the power supply section 7 . The thickness of the pair of connecting portions 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. The second portion 12 and the pair of connecting portions 13 are thicker than the first LED substrate 21 and the second LED substrate 22 . Further, the second portion 12 and the pair of connecting portions 13 may be thicker than the power supply board 71 of the power supply section 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. Also, the thicknesses of the first portion 11 , the second portion 12 and the pair of connecting portions 13 may be thicker than the thickness of the power supply substrate 71 of the power supply section 7 .

According to such an embodiment as well, problems due to insufficient rigidity of the light source section 2 can be suppressed. At least one of the first portion 11, the second portion 12, and the connecting portion 13 is made thicker than the first LED substrate 21 and the second LED substrate 22, as in the LED lighting fixtures A3, A31, A32, and A33. This is preferable for improving the rigidity of the support member 1 . Making the thickness of at least one of the first portion 11 , the second portion 12 , and the connecting portion 13 thicker than the power supply board 71 accommodated in the space 19 is preferable for improving the rigidity of the support member 1 .

At least one of the first portion 11, the second portion 12, the first inclined portion 131, and the second inclined portion 132 in the LED lighting fixture A1 is made thicker than the first LED substrate 21 and the second LED substrate 22. may With such a configuration as well, the rigidity of the support member 1 can be further increased. At least one of the first portion 11 , the second portion 12 and the first inclined portion 131 in the LED lighting fixture A<b>2 may be thicker than the first LED substrate 21 and the second LED substrate 22 . With such a configuration as well, the rigidity of the support member 1 can be further increased.

The LED lighting fixture 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 changed in various ways.

A1, A2, A3, A31, A32, A33: LED lighting fixture 1: Supporting member 2: Light source unit 3: Covers 4A, 4B: Caps 5A, 5B: Inner holder 6: Outer holder 7: Power supply unit 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 caps 51A: Outer end plate portions 52A: Inner end plate Portions 53A, 53B: Supporting member engagement portion 54A: Supporting plate portion 55A: Locking claws 61, 62: Semi-cylindrical portion 71: Power supply substrate 72: Electronic component 81: Cable 82: O-ring 111: First surface 121: Third Two surfaces 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 unit having a first LED substrate and a second LED substrate, each of which is elongate and has a first direction as a longitudinal direction, and on which a plurality of LEDs are mounted;
A first surface having an elongated shape with the first direction as a longitudinal direction and facing one side in a second direction perpendicular to the first direction and on which the first LED substrate is arranged, and the first direction being the longitudinal direction a support member having an elongated shape and a second surface facing the other side of the second direction and on which the second LED substrate is arranged;
An LED lighting fixture comprising a cover that houses the light source and the support member and transmits light from the LED,
The support member ishaving the first surfacePart 1and the second surfaceA second part and connecting the first part and the second parta pair ofa connector;a gap portion interposed between the first portion and the second portion;has
The connecting portion has a first inclined portion connected to the first portion and a second inclined portion connected to the second portion, and in a third direction perpendicular to the first direction and the second direction , the first inclined portion and the second inclined portion form a mountain shape that approaches each other as the distance from the first portion and the second portion increases,
The connecting portion further includes an arc-shaped portion that connects an end of the first inclined portion and an end of the second inclined portion. LED lighting fixture, characterized by comprising: 2. The LED lighting fixture according to claim 1, wherein said arcuate portion is mountable with a screw for fixing to a holder arranged at said first direction end of said support member. A power supply unit having a power supply component and a power supply board on which the power supply component is mounted, and further comprising a power supply unit for supplying power to the LED,
3. The LED lighting apparatus according to claim 1, wherein at least part of said power source is housed in said gap of said support member. 4. The method according to claim 3 , wherein the thickness of at least one of the first part, the second part and the connecting part is thicker than the thickness of at least one of the first LED board, the second LED board and the power supply board. LED lighting equipment.

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