JP2020140906A

JP2020140906A - Light source unit and lighting fixture

Info

Publication number: JP2020140906A
Application number: JP2019036919A
Authority: JP
Inventors: 正博清水; Masahiro Shimizu
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2019-02-28
Filing date: 2019-02-28
Publication date: 2020-09-03

Abstract

To simplify a manufacturing process of a light source unit.SOLUTION: A light source unit 8 includes a base member 5, a first LED substrate 1, a second LED substrate 2, and a power supply device 4. The first LED substrate 1 and the second LED substrate 2 are mounted on a mounting surface 50 of the base member 5 so as to be aligned in one row in a longitudinal direction D1. A first claw portion 51 of the base member 5 is inserted in a first cutout portion 11 of the first LED substrate 1. A second claw portion 52 of the base member 5 is inserted in a second cutout portion 21 of the second LED substrate 2. A power supply device 4 is electrically connected to the first LED substrate 1 through a conductor 6. A clearance in the longitudinal direction D1 between the second cutout portion 21 and the second claw portion 52 is larger than a clearance in the longitudinal direction D1 between the first cutout portion 11 and the first claw portion 51.SELECTED DRAWING: Figure 3

Description

本発明は、光源ユニット及び照明器具に関する。 The present invention relates to a light source unit and a luminaire.

特許文献１には、複数のＬＥＤ基板を備える長尺の光源ユニットが記載されている。この光源ユニットにおいては、長尺の支持部材の一面側に、複数のＬＥＤ基板を一列に並ぶように支持させている。これら複数のＬＥＤ基板には、電源装置とつながるように引き回された配線を介して、電力が供給される。 Patent Document 1 describes a long light source unit including a plurality of LED substrates. In this light source unit, a plurality of LED substrates are supported in a row on one side of a long support member. Power is supplied to these plurality of LED substrates via wiring routed so as to be connected to the power supply device.

特開２０１７−３３７９１号公報Japanese Unexamined Patent Publication No. 2017-33791

上記した従来の光源ユニットにおいては、複数のＬＥＤ基板と電源装置をつなぐように配線を引き回す必要があり、製造工程の簡略化の面で不利となることがある。 In the above-mentioned conventional light source unit, it is necessary to route the wiring so as to connect the plurality of LED boards and the power supply device, which may be disadvantageous in terms of simplification of the manufacturing process.

本発明は、製造工程の簡略化を図ることができる光源ユニット及び照明器具を提供することを、目的とする。 An object of the present invention is to provide a light source unit and a lighting fixture capable of simplifying a manufacturing process.

本発明の一態様に係る光源ユニットは、長手方向を有する長尺の取付面が形成されたベース部材と、それぞれが長尺である複数のＬＥＤ基板と、前記複数のＬＥＤ基板を、前記長手方向に一列に並ぶように前記取付面に取り付ける取付構造と、前記ベース部材を挟んで前記複数のＬＥＤ基板とは反対側に配置される電源装置と、前記複数のＬＥＤ基板を前記電源装置に電気接続する通電部と、を備える。 The light source unit according to one aspect of the present invention comprises a base member on which a long mounting surface having a longitudinal direction is formed, a plurality of LED substrates each of which is elongated, and the plurality of LED substrates in the longitudinal direction. A mounting structure that is mounted on the mounting surface so as to be lined up in a row, a power supply device that is arranged on the side opposite to the plurality of LED boards with the base member interposed therebetween, and the plurality of LED boards that are electrically connected to the power supply device. It is provided with an energizing unit.

前記複数のＬＥＤ基板は、第一ＬＥＤ基板と、前記長手方向において第一ＬＥＤ基板に隣接する第二ＬＥＤ基板と、を含む。前記取付構造は、前記ベース部材が有する第一爪部と、前記第一爪部が挿入されるように前記第一ＬＥＤ基板に形成された第一切欠部と、前記ベース部材が有する第二爪部と、前記第二爪部が挿入されるように前記第二ＬＥＤ基板に形成された第二切欠部と、を含む。前記通電部は、前記ベース部材を貫通して前記電源装置と前記第一ＬＥＤ基板を電気接続する導電体と、前記第一ＬＥＤ基板と前記第二ＬＥＤ基板を電気接続するコネクタと、を含む。前記第二切欠部と、前記第二爪部のうち前記第二切欠部に挿通された部分との前記長手方向の寸法差を第二クリアランスとし、前記第一切欠部と、前記第一爪部のうち前記第一切欠部に挿通された部分との前記長手方向の寸法差を第一クリアランスとしたとき、前記第二クリアランスは前記第一クリアランスよりも大きい。 The plurality of LED substrates include a first LED substrate and a second LED substrate adjacent to the first LED substrate in the longitudinal direction. The mounting structure includes a first claw portion of the base member, a first missing portion formed on the first LED substrate so that the first claw portion is inserted, and a second portion of the base member. It includes a claw portion and a second notch portion formed in the second LED substrate so that the second claw portion is inserted. The energizing portion includes a conductor that electrically connects the power supply device and the first LED substrate through the base member, and a connector that electrically connects the first LED substrate and the second LED substrate. The dimensional difference in the longitudinal direction between the second notch and the portion of the second claw that is inserted through the second notch is defined as the second clearance, and the first notch and the first claw are defined as the second clearance. When the dimensional difference in the longitudinal direction from the portion inserted through the first missing portion of the portion is taken as the first clearance, the second clearance is larger than the first clearance.

本発明の一態様に係る照明器具は、前記光源ユニットと、前記光源ユニットを支持する器具本体と、を備える。 The lighting fixture according to one aspect of the present invention includes the light source unit and a fixture main body that supports the light source unit.

本発明によれば、製造工程の簡略化を図ることができる光源ユニット及び照明器具を提供することができる。 According to the present invention, it is possible to provide a light source unit and a luminaire that can simplify the manufacturing process.

図１は、一実施形態の照明器具の斜視図である。FIG. 1 is a perspective view of the lighting fixture of one embodiment. 図２は、同上の照明器具の分解斜視図である。FIG. 2 is an exploded perspective view of the same lighting fixture. 図３は、同上の照明器具が備える発光ユニットの正面図である。FIG. 3 is a front view of a light emitting unit included in the same lighting fixture. 図４Ａ、図４Ｂは、同上の発光ユニットの第一爪部でＬＥＤ基板の抜け止めを行う手順を示す要部斜視図である。4A and 4B are perspective views of a main part showing a procedure for preventing the LED substrate from coming off at the first claw portion of the light emitting unit of the same. 図５Ａ、図５Ｂは、同上の発光ユニットの第二爪部でＬＥＤ基板の抜け止めを行う手順を示す要部斜視図である。5A and 5B are perspective views of a main part showing a procedure for preventing the LED substrate from coming off at the second claw portion of the light emitting unit of the same. 図６は、同上の発光ユニットの変形例１を模式的に示す正面図である。FIG. 6 is a front view schematically showing a modification 1 of the light emitting unit of the above. 図７は、同上の発光ユニットの変形例２を模式的に示す正面図である。FIG. 7 is a front view schematically showing a modification 2 of the light emitting unit of the above. 図８は、同上の発光ユニットの変形例３を模式的に示す正面図である。FIG. 8 is a front view schematically showing a modification 3 of the light emitting unit of the above.

（一実施形態）
図１、図２に示すように、一実施形態の照明器具９は、天井直付け型の照明器具であって、図示略の吊ボルトを用いて天井に取り付けられる平面視矩形状の器具本体８５と、器具本体８５に着脱自在に取り付けられる光源ユニット８を備える。 (One Embodiment)
As shown in FIGS. 1 and 2, the luminaire 9 of one embodiment is a luminaire directly mounted on the ceiling, and is a luminaire body 85 having a rectangular shape in a plan view and is attached to the ceiling by using a hanging bolt (not shown). A light source unit 8 that can be detachably attached to the fixture body 85 is provided.

器具本体８５の天井とは反対側（下側）を向く面には、光源ユニット８を収容するための矩形状の凹部８５２が、器具本体８５の全長に亘って設けられている。器具本体８５の短手方向において凹部８５２の両側には、凹部８５２の開口縁から延出した傾斜面８５４が設けられている。傾斜面８５４は、凹部８５２の開口縁から外側に離れた箇所ほど、天井に近づくように傾斜している。器具本体８５の長手方向の両端部には、エンドキャップ８５６が取り付けられている。 On the surface of the fixture body 85 facing the opposite side (lower side) from the ceiling, a rectangular recess 852 for accommodating the light source unit 8 is provided over the entire length of the fixture body 85. Inclined surfaces 854 extending from the opening edge of the recess 852 are provided on both sides of the recess 852 in the lateral direction of the instrument body 85. The inclined surface 854 is inclined so as to be closer to the ceiling as the portion further outward from the opening edge of the recess 852. End caps 856 are attached to both ends of the instrument body 85 in the longitudinal direction.

光源ユニット８は、一直線状の外形を有する長尺のベース部材５と、同じく一直線状の外形を有する二つのＬＥＤ基板１，２を備える。以下において、二つのＬＥＤ基板１，２のうち符号１が付されたものを「第一ＬＥＤ基板」と称し、符号２が付されたものを「第二ＬＥＤ基板」と称する。 The light source unit 8 includes a long base member 5 having a linear outer shape, and two LED substrates 1 and 2 having a linear outer shape as well. In the following, of the two LED substrates 1 and 2, the one with the reference numeral 1 is referred to as the "first LED substrate", and the one with the reference numeral 2 is referred to as the "second LED substrate".

一実施形態の光源ユニット８は、第一ＬＥＤ基板１と第二ＬＥＤ基板２を覆うようにベース部材５に装着される透光性のカバー部材８１と、第一ＬＥＤ基板１と第二ＬＥＤ基板２に点灯電力を供給する電源装置４を、更に備える。 The light source unit 8 of one embodiment includes a translucent cover member 81 mounted on a base member 5 so as to cover the first LED substrate 1 and the second LED substrate 2, and the first LED substrate 1 and the second LED substrate. A power supply device 4 for supplying lighting power to 2 is further provided.

カバー部材８１は、拡散性を有する材料（例えば乳白色のアクリル樹脂）で形成されている。電源装置４は、一対のピン状の導電体６を介して、第一ＬＥＤ基板１に対して電気的にかつ機械的に接続される。金属製である一対の導電体６は、第一ＬＥＤ基板１とベース部材５を貫通して、電源装置４のコネクタ４２に挿入される。 The cover member 81 is made of a diffusible material (for example, a milky white acrylic resin). The power supply device 4 is electrically and mechanically connected to the first LED substrate 1 via a pair of pin-shaped conductors 6. The pair of conductors 6 made of metal penetrate the first LED substrate 1 and the base member 5 and are inserted into the connector 42 of the power supply device 4.

以下においては、一実施形態の光源ユニット８が備える各構成について、更に詳しく説明する。 In the following, each configuration included in the light source unit 8 of one embodiment will be described in more detail.

まず、ベース部材５について説明する。 First, the base member 5 will be described.

ベース部材５は、板金に曲げ加工を施すことで、全体が断面Ｕ字状に形成されている（図２参照）。ベース部材５は、細長い矩形板状の底板部５６と、底板部５６の短手方向の両端から延出する一対の側板部５８を備える。底板部５６の正面に、第一ＬＥＤ基板１と第二ＬＥＤ基板２を取り付ける長尺の取付面５０が形成されている。 The base member 5 is formed into a U-shaped cross section as a whole by bending the sheet metal (see FIG. 2). The base member 5 includes an elongated rectangular plate-shaped bottom plate portion 56 and a pair of side plate portions 58 extending from both ends of the bottom plate portion 56 in the lateral direction. A long mounting surface 50 for mounting the first LED board 1 and the second LED board 2 is formed on the front surface of the bottom plate portion 56.

第一ＬＥＤ基板１と第二ＬＥＤ基板２はともに、長手方向、短手方向及び厚さ方向を有する細長い矩形板状のプリントＬＥＤ基板である。 Both the first LED substrate 1 and the second LED substrate 2 are elongated rectangular plate-shaped printed LED substrates having a longitudinal direction, a lateral direction, and a thickness direction.

一実施形態の光源ユニット８では、第一ＬＥＤ基板１と第二ＬＥＤ基板２がベース部材５の取付面５０に取り付けられた状態で、第一ＬＥＤ基板１と第二ＬＥＤ基板２の長手方向が、ベース部材５と取付面５０の長手方向Ｄ１と一致する。同様に、第一ＬＥＤ基板１と第二ＬＥＤ基板２の短手方向が、ベース部材５と取付面５０の短手方向Ｄ２と一致し、第一ＬＥＤ基板１と第二ＬＥＤ基板２の厚さ方向が、ベース部材５の厚さ方向Ｄ３と一致する。長手方向Ｄ１、短手方向Ｄ２及び厚さ方向Ｄ３は、いずれもが残りの二つと直交する関係にある。 In the light source unit 8 of one embodiment, the first LED board 1 and the second LED board 2 are mounted on the mounting surface 50 of the base member 5 in the longitudinal direction of the first LED board 1 and the second LED board 2. , Consistent with the longitudinal direction D1 of the base member 5 and the mounting surface 50. Similarly, the lateral direction of the first LED substrate 1 and the second LED substrate 2 coincides with the lateral direction D2 of the base member 5 and the mounting surface 50, and the thickness of the first LED substrate 1 and the second LED substrate 2 The direction coincides with the thickness direction D3 of the base member 5. The longitudinal direction D1, the lateral direction D2, and the thickness direction D3 are all orthogonal to the remaining two.

次に、第一ＬＥＤ基板１と、これをベース部材５に取り付けるための構造について説明する。 Next, the first LED substrate 1 and the structure for attaching the first LED substrate 1 to the base member 5 will be described.

第一ＬＥＤ基板１は、ベース部材５の取付面５０のうち、長手方向Ｄ１の第一側の半部領域に取り付けられる。この半部領域は、取付面５０の長手方向Ｄ１の中央を基準とし、該中央よりも第一側の領域である。以下においては、理解をしやすくするために長手方向Ｄ１の第一側を「左側」と称し、これとは反対側である長手方向Ｄ１の第二側を「右側」と称する。 The first LED substrate 1 is mounted on the first half region of the mounting surface 50 of the base member 5 in the longitudinal direction D1. This half region is a region on the first side of the center of the mounting surface 50 in the longitudinal direction D1 as a reference. In the following, for ease of understanding, the first side of the longitudinal direction D1 is referred to as the "left side", and the second side of the longitudinal direction D1 opposite to this is referred to as the "right side".

第一ＬＥＤ基板１の厚さ方向Ｄ３の一面には、複数の発光ダイオード１８が、長手方向Ｄ１に沿って一列に実装されている。発光ダイオード１８の配列は一列に限定されず、例えば複数列に配列されてもよいし、千鳥状に配列されてもよい。各発光ダイオード１８は電圧印可により発光する性質を有していればよく、その材質と発光色は特に限定されない。各発光ダイオード１８が、有機エレクトロルミネッセンス素子であってもよい。 A plurality of light emitting diodes 18 are mounted in a row along the longitudinal direction D1 on one surface of the first LED substrate 1 in the thickness direction D3. The arrangement of the light emitting diodes 18 is not limited to one row, and may be arranged in a plurality of rows or in a staggered manner, for example. Each light emitting diode 18 may have a property of emitting light by applying a voltage, and its material and light emitting color are not particularly limited. Each light emitting diode 18 may be an organic electroluminescence element.

第一ＬＥＤ基板１の短手方向Ｄ２の両側の長辺にはそれぞれ、図３等に示すような矩形状の第一切欠部１１が、長手方向Ｄ１に距離をあけて複数設けられている。各第一切欠部１１は、後述の第一爪部５１と一対一で対応する位置にある。 A plurality of rectangular first missing portions 11 as shown in FIG. 3 and the like are provided on the long sides of both sides of the first LED substrate 1 in the lateral direction D2 at a distance in the longitudinal direction D1. .. Each first missing portion 11 is in a position corresponding to one-to-one with the first claw portion 51 described later.

第一ＬＥＤ基板１の右側の端部には、一対のコネクタ１５が設けられている。 A pair of connectors 15 are provided at the right end of the first LED substrate 1.

図３等に示すように、第一ＬＥＤ基板１をベース部材５に取り付けるための複数の第一爪部５１は、ベース部材５において、二列に並んで位置している。各列において、複数の第一爪部５１は長手方向Ｄ１に一直線状に並んで位置する。 As shown in FIG. 3 and the like, the plurality of first claw portions 51 for attaching the first LED substrate 1 to the base member 5 are located side by side in two rows in the base member 5. In each row, the plurality of first claw portions 51 are arranged in a straight line in the longitudinal direction D1.

各第一爪部５１は、板金製である底板部５６の一部を切り起こすことで、Ｌ字型に形成されている。 Each first claw portion 51 is formed in an L shape by cutting up a part of the bottom plate portion 56 made of sheet metal.

図４Ａ等に示すように、各第一爪部５１は、取付面５０から厚さ方向Ｄ３に起立する第一スライド規制部５１２と、第一スライド規制部５１２の突先部分から長手方向Ｄ１に延長された第一離間規制部５１４を有する。第一離間規制部５１４は、図４Ｂ等に示すように、短手方向Ｄ２の内側に向けて折れ曲がるようにかしめられることで、第一切欠部１１の縁部分に引っ掛かる。 As shown in FIG. 4A and the like, each of the first claw portions 51 has a first slide restricting portion 512 that stands up from the mounting surface 50 in the thickness direction D3, and a tip portion of the first slide restricting portion 512 in the longitudinal direction D1. It has an extended first separation control section 514. As shown in FIG. 4B and the like, the first separation restricting portion 514 is crimped so as to bend inward in the lateral direction D2, so that the first separation restricting portion 514 is caught by the edge portion of the first completely missing portion 11.

第一スライド規制部５１２は、第一ＬＥＤ基板１が長手方向Ｄ１に移動することと、第一ＬＥＤ基板１が短手方向Ｄ２の外側に向けて移動することを規制する。第一離間規制部５１４は、第一ＬＥＤ基板１が厚さ方向Ｄ３においてベース部材５から離れることを規制する。 The first slide regulation unit 512 regulates the movement of the first LED substrate 1 in the longitudinal direction D1 and the movement of the first LED substrate 1 toward the outside of the lateral direction D2. The first separation regulating unit 514 restricts the first LED substrate 1 from separating from the base member 5 in the thickness direction D3.

次に、第二ＬＥＤ基板２と、これをベース部材５に保持させるための構造について説明する。 Next, the second LED substrate 2 and the structure for holding the second LED substrate 2 on the base member 5 will be described.

図２等に示すように、第二ＬＥＤ基板２は、ベース部材５の取付面５０のうち、右側の半部領域に取り付けられる。この半部領域は、取付面５０の長手方向Ｄ１の中央を基準とし、該中央よりも右側の領域である。第二ＬＥＤ基板２の厚さ方向Ｄ３の一面には、複数の発光ダイオード２８が、長手方向Ｄ１に沿って一列に実装されている。 As shown in FIG. 2 and the like, the second LED substrate 2 is mounted on the right half region of the mounting surface 50 of the base member 5. This half region is a region on the right side of the center of the mounting surface 50 in the longitudinal direction D1 as a reference. A plurality of light emitting diodes 28 are mounted in a row along the longitudinal direction D1 on one surface of the second LED substrate 2 in the thickness direction D3.

第二ＬＥＤ基板２においても、複数の発光ダイオード２８の配列は一列に限定されず、例えば複数列に配列されてもよいし、千鳥状に配列されてもよい。複数の発光ダイオード２８の配列が、複数の発光ダイオード１８の配列と相違してもよい。各発光ダイオード２８は電圧印可により発光する性質を有していればよく、その材質と発光色は特に限定されない。各発光ダイオード２８が、有機エレクトロルミネッセンス素子であってもよい。 Also in the second LED substrate 2, the arrangement of the plurality of light emitting diodes 28 is not limited to one row, and may be arranged in a plurality of rows or in a staggered manner, for example. The arrangement of the plurality of light emitting diodes 28 may be different from the arrangement of the plurality of light emitting diodes 18. Each light emitting diode 28 may have a property of emitting light by applying a voltage, and its material and light emitting color are not particularly limited. Each light emitting diode 28 may be an organic electroluminescence element.

第二ＬＥＤ基板２の短手方向Ｄ２の両側の長辺にはそれぞれ、図３等に示すような矩形状の第二切欠部２１が、長手方向Ｄ１に距離をあけて複数設けられている。各第二切欠部２１は、後述の第二爪部５２に一対一で対応する位置にある。 A plurality of rectangular second notches 21 as shown in FIG. 3 and the like are provided on the long sides of both sides of the second LED substrate 2 in the lateral direction D2 at a distance in the longitudinal direction D1. Each of the second notch portions 21 is located at a position corresponding to the second claw portion 52 described later on a one-to-one basis.

第二ＬＥＤ基板２の左側の端部には、一対のコネクタ２５が設けられている。一対のコネクタ２５は、第一ＬＥＤ基板１の一対のコネクタ１５に対して電気的にかつ機械的に接続するように構成されている。 A pair of connectors 25 are provided at the left end of the second LED substrate 2. The pair of connectors 25 are configured to be electrically and mechanically connected to the pair of connectors 15 of the first LED substrate 1.

第二ＬＥＤ基板２をベース部材５に取り付けるための複数の第二爪部５２は、ベース部材５において二列に並んで位置している。各列において、複数の第二爪部５２は長手方向Ｄ１に一直線状に並んで位置する。 A plurality of second claws 52 for attaching the second LED substrate 2 to the base member 5 are located side by side in two rows on the base member 5. In each row, the plurality of second claw portions 52 are arranged in a straight line in the longitudinal direction D1.

各第二爪部５２は、板金製である底板部５６の一部を切り起こすことで、第一爪部５１と同様のＬ字型に形成されている。 Each second claw portion 52 is formed in an L shape similar to the first claw portion 51 by cutting up a part of the bottom plate portion 56 made of sheet metal.

図５Ａ等に示すように、各第二爪部５２は、取付面５０から厚さ方向Ｄ３に起立する第二スライド規制部５２２と、第二スライド規制部５２２の突先部分から長手方向Ｄ１に延長された第二離間規制部５２４を有する。第二離間規制部５２４は、短手方向Ｄ２の内側に向けて折れ曲がるようにかしめられることで、第二切欠部２１の縁部分に引っ掛かる。 As shown in FIG. 5A and the like, each of the second claw portions 52 has a second slide restricting portion 522 standing upright from the mounting surface 50 in the thickness direction D3, and a tip portion of the second slide restricting portion 522 in the longitudinal direction D1. It has an extended second separation control section 524. The second separation restricting portion 524 is hooked on the edge portion of the second notch portion 21 by being crimped so as to bend inward in the lateral direction D2.

第二スライド規制部５２２は、第二ＬＥＤ基板２が長手方向Ｄ１に移動することと、第二ＬＥＤ基板２が短手方向Ｄ２の外側に向けて移動することを規制する。第二離間規制部５２４は、第二ＬＥＤ基板２が厚さ方向Ｄ３においてベース部材５から離れることを規制する。 The second slide regulation unit 522 restricts the second LED substrate 2 from moving in the longitudinal direction D1 and the second LED substrate 2 from moving toward the outside in the lateral direction D2. The second separation regulating unit 524 restricts the second LED substrate 2 from separating from the base member 5 in the thickness direction D3.

上記のように、一実施形態の光源ユニット８では、ベース部材５が有する複数の第一爪部５１及び複数の第二爪部５２と、第一ＬＥＤ基板１に形成された複数の第一切欠部１１と、第二ＬＥＤ基板２に形成された複数の第二切欠部２１で、取付構造が構成されている。この取付構造を介して、第一ＬＥＤ基板と第二ＬＥＤ基板２が、長手方向Ｄ１に一列に並ぶようにして取付面５０に取り付けられる。 As described above, in the light source unit 8 of one embodiment, the plurality of first claw portions 51 and the plurality of second claw portions 52 included in the base member 5, and the plurality of first all formed on the first LED substrate 1. The mounting structure is composed of the notch 11 and the plurality of second notches 21 formed on the second LED substrate 2. Through this mounting structure, the first LED board and the second LED board 2 are mounted on the mounting surface 50 so as to line up in the longitudinal direction D1.

また、一実施形態の光源ユニット８では、第一ＬＥＤ基板１の端部に実装された一対のコネクタ１５と、第二ＬＥＤ基板２の端部に実装された一対のコネクタ２５と、一対の導電体６で、通電部が構成されている。この通電部を介して、第一ＬＥＤ基板１及び第二ＬＥＤ基板２と、ベース部材５を挟んでこれらの反対側に配置される電源装置４とが、電気接続される。 Further, in the light source unit 8 of one embodiment, a pair of connectors 15 mounted on the end of the first LED board 1, a pair of connectors 25 mounted on the end of the second LED board 2, and a pair of conductors. The body 6 comprises an energizing portion. The first LED substrate 1 and the second LED substrate 2 and the power supply device 4 arranged on the opposite side of the base member 5 are electrically connected via the current-carrying portion.

したがって、一実施形態の光源ユニット８では、従来技術のように配線を引き回すことなく、第一ＬＥＤ基板１と第二ＬＥＤ基板２をそれぞれ電源装置４につなぐことができ、製造工程の簡略化を図ることができる。 Therefore, in the light source unit 8 of one embodiment, the first LED substrate 1 and the second LED substrate 2 can be connected to the power supply device 4 without routing the wiring as in the prior art, and the manufacturing process can be simplified. Can be planned.

ここで、一実施形態の光源ユニット８においては、第二ＬＥＤ基板２が有する第二切欠部２１の長手方向Ｄ１の寸法ｄ２を、第一ＬＥＤ基板１が有する第一切欠部１１の長手方向Ｄ１の寸法ｄ１よりも、大きく設定している（図３参照）。これに対して、ベース部材５が有する第一爪部５１と第二爪部５２の寸法形状は、互いに同一である。 Here, in the light source unit 8 of one embodiment, the dimension d2 of the longitudinal direction D1 of the second notch 21 included in the second LED substrate 2 is the longitudinal direction of the first notch 11 included in the first LED substrate 1. It is set larger than the dimension d1 of D1 (see FIG. 3). On the other hand, the dimensions and shapes of the first claw portion 51 and the second claw portion 52 of the base member 5 are the same as each other.

そのため、第二切欠部２１と第二スライド規制部５２２の長手方向Ｄ１の寸法差（以下「第二クリアランス」という。）は、第一切欠部１１と第一スライド規制部５１２の長手方向Ｄ１の寸法差（以下「第一クリアランス」という。）よりも大きい。 Therefore, the dimensional difference between the second notch 21 and the second slide restricting portion 522 in the longitudinal direction D1 (hereinafter referred to as “second clearance”) is the longitudinal direction D1 between the first notch 11 and the first slide restricting portion 512. It is larger than the dimensional difference of (hereinafter referred to as "first clearance").

第二スライド規制部５２２の長手方向Ｄ１の寸法は、言い換えれば、第二爪部５２のうち第二切欠部２１に挿通される部分の長手方向Ｄ１の寸法である。第二クリアランスは、第二切欠部２１に挿通された第二スライド規制部５２２が、長手方向Ｄ１において移動可能な寸法である。 The dimension of the second slide restricting portion 522 in the longitudinal direction D1 is, in other words, the dimension of the portion of the second claw portion 52 inserted into the second notch portion 21 in the longitudinal direction D1. The second clearance is a dimension in which the second slide restricting portion 522 inserted through the second notch 21 can move in the longitudinal direction D1.

同様に、第一スライド規制部５１２の長手方向Ｄ１の寸法は、第一爪部５１のうち第一切欠部１１に挿通される部分の長手方向Ｄ１の寸法である。第一クリアランスは、第一切欠部１１に挿通された第一スライド規制部５１２が、長手方向Ｄ１において移動可能な寸法である。 Similarly, the dimension of the first slide restricting portion 512 in the longitudinal direction D1 is the dimension of the portion of the first claw portion 51 that is inserted into the first missing portion 11 in the longitudinal direction D1. The first clearance is a dimension in which the first slide restricting portion 512 inserted through the first completely missing portion 11 can move in the longitudinal direction D1.

第一ＬＥＤ基板１と第二ＬＥＤ基板２がともにガラスコンポジット基板であるとき、第二クリアランスと第二クリアランスの差は、例えば０．３ｍｍから１ｍｍの範囲内で設定される。 When both the first LED substrate 1 and the second LED substrate 2 are glass composite substrates, the difference between the second clearance and the second clearance is set within the range of, for example, 0.3 mm to 1 mm.

一実施形態の光源ユニット８では、第一ＬＥＤ基板１が一対の導電体６を介して電源装置４に電気接続されており、第一ＬＥＤ基板１の変位はこの接続部分において拘束される。そのため、第一ＬＥＤ基板１と第二ＬＥＤ基板２がともに熱膨張したときには、第一ＬＥＤ基板１が全体の膨張の起点となり、第一ＬＥＤ基板１よりも第二ＬＥＤ基板２のほうが長手方向Ｄ１に大きく変位する。これに対して、一実施形態の光源ユニット８では第二クリアランスが第一クリアランスよりも大きいので、第二爪部５２の一部（つまり第二離間規制部５２４）が第二ＬＥＤ基板２に当って破損を生じさせることは抑えられる。 In the light source unit 8 of one embodiment, the first LED substrate 1 is electrically connected to the power supply device 4 via a pair of conductors 6, and the displacement of the first LED substrate 1 is constrained at this connection portion. Therefore, when both the first LED substrate 1 and the second LED substrate 2 are thermally expanded, the first LED substrate 1 becomes the starting point of the overall expansion, and the second LED substrate 2 is more longitudinally D1 than the first LED substrate 1. Largely displaced to. On the other hand, in the light source unit 8 of one embodiment, since the second clearance is larger than the first clearance, a part of the second claw portion 52 (that is, the second separation regulating portion 524) hits the second LED substrate 2. It is possible to prevent the damage from occurring.

（変形例）
一実施形態の光源ユニット８の各種の変形例について、以下に説明する。各種の変形例の説明において、一実施形態において説明した構成と同様の構成については、同一符号を付して詳しい説明を省略する。 (Modification example)
Various modifications of the light source unit 8 of one embodiment will be described below. In the description of the various modifications, the same components as those described in one embodiment are designated by the same reference numerals and detailed description thereof will be omitted.

図６には、一実施形態の光源ユニット８の変形例１を示している。変形例１において、光源ユニット８は、一対のコネクタ２５が設けられた第二ＬＥＤ基板２を、二つ備えている。第一ＬＥＤ基板１の長手方向Ｄ１の両端部には、それぞれ一対のコネクタ１５が設けられている。 FIG. 6 shows a modification 1 of the light source unit 8 of one embodiment. In the first modification, the light source unit 8 includes two second LED substrates 2 provided with a pair of connectors 25. A pair of connectors 15 are provided at both ends of the first LED substrate 1 in the longitudinal direction D1.

二つの第二ＬＥＤ基板２のうち一方の第二ＬＥＤ基板２にある一対のコネクタ２５が、第一ＬＥＤ基板１の一端部にある一対のコネクタ１５に電気接続されている。二つの第二ＬＥＤ基板２のうち他方の第二ＬＥＤ基板２にある一対のコネクタ２５が、第一ＬＥＤ基板１の他端部にある一対のコネクタ１５に電気接続されている。 A pair of connectors 25 on one of the second LED boards 2 of the two second LED boards 2 are electrically connected to a pair of connectors 15 on one end of the first LED board 1. A pair of connectors 25 on the other second LED board 2 of the two second LED boards 2 are electrically connected to a pair of connectors 15 on the other end of the first LED board 1.

変形例１では、一対の導電体６を介して電源装置４に電気接続されていることから全体の熱膨張の起点となる第一ＬＥＤ基板１が、長手方向Ｄ１の両端を除いた位置にある。そのため、両端の第二ＬＥＤ基板２が熱膨張の影響で長手方向Ｄ１に大きく変位することは抑えられている。 In the first modification, the first LED substrate 1 which is the starting point of the entire thermal expansion because it is electrically connected to the power supply device 4 via the pair of conductors 6 is at a position excluding both ends in the longitudinal direction D1. .. Therefore, it is suppressed that the second LED substrates 2 at both ends are largely displaced in the longitudinal direction D1 due to the influence of thermal expansion.

図７には、一実施形態の光源ユニット８の変形例２を示している。変形例２において、光源ユニット８は、変形例１と同様の二つの第二ＬＥＤ基板２と、第二ＬＥＤ基板２に対して電気接続される第三ＬＥＤ基板３を備えている。 FIG. 7 shows a modification 2 of the light source unit 8 of one embodiment. In the second modification, the light source unit 8 includes two second LED substrates 2 similar to the first modification, and a third LED substrate 3 that is electrically connected to the second LED substrate 2.

二つの第二ＬＥＤ基板２のうち一方の第二ＬＥＤ基板２には、第三ＬＥＤ基板３に電気接続される一対のコネクタ２７が設けられている。一対のコネクタ２７は、第二ＬＥＤ基板２のうち一対のコネクタ２５が設けられている端部とは反対側の端部に、設けられている。 The second LED board 2 of one of the two second LED boards 2 is provided with a pair of connectors 27 that are electrically connected to the third LED board 3. The pair of connectors 27 are provided at the end of the second LED substrate 2 opposite to the end where the pair of connectors 25 are provided.

第三ＬＥＤ基板３の短手方向Ｄ２の両側の長辺にはそれぞれ、矩形状の第三切欠部３１が、長手方向Ｄ１に距離をあけて複数設けられている。これら複数の第三切欠部３１は、底板部５６の一部を切り起こして形成された複数の第三爪部５３と、一対一で対応する位置にある。各第三爪部５３は、第一爪部５１及び第二爪部５２と同一の寸法形状を有している。 A plurality of rectangular third notches 31 are provided on both long sides of the third LED substrate 3 in the lateral direction D2 at a distance in the longitudinal direction D1. These plurality of third notch portions 31 are located at one-to-one correspondence with the plurality of third claw portions 53 formed by cutting out a part of the bottom plate portion 56. Each third claw portion 53 has the same dimensions and shape as the first claw portion 51 and the second claw portion 52.

したがって、第三切欠部３１の長手方向Ｄ１の寸法と、第三爪部５３のうち第三切欠部３１に挿通された部分の長手方向Ｄ１の寸法との差を第三クリアランスとしたとき、この第三クリアランスは第一クリアランスよりも大きい。 Therefore, when the difference between the dimension of the third notch portion 31 in the longitudinal direction D1 and the dimension of the portion of the third claw portion 53 inserted through the third notch portion 31 in the longitudinal direction D1 is taken as the third clearance, this The third clearance is larger than the first clearance.

第三切欠部３１の長手方向Ｄ１の寸法は、第二切欠部２１の長手方向Ｄ１の寸法よりも大きいことが好ましい。この場合、第三クリアランスは第一クリアランスよりも大きく、かつ第二クリアランスよりも大きい。 The dimension of the third notch 31 in the longitudinal direction D1 is preferably larger than the dimension of the second notch 21 in the longitudinal direction D1. In this case, the third clearance is larger than the first clearance and larger than the second clearance.

第三ＬＥＤ基板３の左側の端部には、一対のコネクタ３５が設けられている。一対のコネクタ３５は、第二ＬＥＤ基板２の一対のコネクタ２７に対して電気的にかつ機械的に接続するように構成されている。 A pair of connectors 35 are provided at the left end of the third LED substrate 3. The pair of connectors 35 are configured to be electrically and mechanically connected to the pair of connectors 27 of the second LED substrate 2.

変形例２においても、一対の導電体６を介して電源装置４に電気接続されていることから全体の熱膨張の起点となる第一ＬＥＤ基板１が、長手方向Ｄ１の両端を除いた位置にある。そのため、長手方向Ｄ１の両端に位置する第二ＬＥＤ基板２と第三ＬＥＤ基板３が、熱膨張の影響で長手方向Ｄ１に大きく変位することが抑えられている。 Also in the second modification, the first LED substrate 1 which is the starting point of the entire thermal expansion because it is electrically connected to the power supply device 4 via the pair of conductors 6 is located at a position excluding both ends of the longitudinal direction D1. is there. Therefore, it is suppressed that the second LED substrate 2 and the third LED substrate 3 located at both ends of the longitudinal direction D1 are largely displaced in the longitudinal direction D1 due to the influence of thermal expansion.

図８には、一実施形態の光源ユニット８の変形例３を示している。変形例３において、光源ユニット８は、電源装置４とこれに電気接続される第一ＬＥＤ基板１の組を、複数組（具体的には二組）備えている。 FIG. 8 shows a modification 3 of the light source unit 8 of one embodiment. In the third modification, the light source unit 8 includes a plurality of sets (specifically, two sets) of the power supply device 4 and the first LED substrate 1 electrically connected to the power supply device 4.

二つの第一ＬＥＤ基板１は、長手方向Ｄ１に隣接して位置している。二つの第一ＬＥＤ基板１を挟んだ長手方向Ｄ１の両側に、それぞれ第二ＬＥＤ基板２が位置している。二つ第二ＬＥＤ基板２は、長手方向Ｄ１の中央側に位置する二つの第一ＬＥＤ基板１に対して、一対一で電気接続されている。 The two first LED substrates 1 are located adjacent to the longitudinal direction D1. The second LED substrate 2 is located on both sides of the longitudinal direction D1 sandwiching the two first LED substrates 1. The two second LED substrates 2 are electrically connected to the two first LED substrates 1 located on the central side in the longitudinal direction D1 on a one-to-one basis.

変形例３においても、一対の導電体６を介して電源装置４に接続されていることから全体の熱膨張の起点となる第一ＬＥＤ基板１が、長手方向Ｄ１の両端を除いた位置にある。そのため、長手方向Ｄ１の両端に位置する第二ＬＥＤ基板２が、熱膨張の影響で長手方向Ｄ１に大きく変位することが抑えられている。 Also in the modified example 3, the first LED substrate 1 which is the starting point of the entire thermal expansion because it is connected to the power supply device 4 via the pair of conductors 6 is at a position excluding both ends in the longitudinal direction D1. .. Therefore, it is suppressed that the second LED substrates 2 located at both ends of the longitudinal direction D1 are largely displaced in the longitudinal direction D1 due to the influence of thermal expansion.

なお、上記した各種の変形例は一例に過ぎず、同様の作用効果を奏する範囲内において、一実施形態及び各種の変形例の構成を適宜に設計変更することが可能であり、また、各種の変形例の構成を適宜に組み合わせることが可能である。 It should be noted that the various modified examples described above are only examples, and the configurations of one embodiment and various modified examples can be appropriately redesigned within the range in which the same action and effect are exhibited, and various types of modifications can be made. It is possible to appropriately combine the configurations of the modified examples.

（態様）
第１の態様の光源ユニット（８）は、ベース部材（５）、複数のＬＥＤ基板（１，２，…）、取付構造、電源装置（４）及び通電部を備える。ベース部材（５）には、長手方向（Ｄ１）を有する長尺の取付面（５０）が形成されている。複数のＬＥＤ基板（１，２，…）は、それぞれが長尺である。取付構造は、複数のＬＥＤ基板（１，２，…）を、長手方向（Ｄ１）に一列に並ぶように取付面（５０）に取り付ける構造である。電源装置（４）は、ベース部材（５）を挟んで複数のＬＥＤ基板（１，２，…）とは反対側に配置される。通電部は、複数のＬＥＤ基板（１，２，…）と電源装置（４）を電気接続する。複数のＬＥＤ基板（１，２，…）は、第一ＬＥＤ基板（１）と、長手方向（Ｄ１）において第一ＬＥＤ基板（１）に隣接する第二ＬＥＤ基板（２）を含む。取付構造は、ベース部材（５）が有する第一爪部（５１）と、第一爪部（５１）が挿入されるように第一ＬＥＤ基板（１）に形成された第一切欠部（１１）と、ベース部材（５）が有する第二爪部（５２）と、第二爪部（５２）が挿入されるように第二ＬＥＤ基板（２）に形成された第二切欠部（２１）を含む。通電部は、ベース部材（５）を貫通して電源装置（４）と第一ＬＥＤ基板（１）を電気接続する導電体（６）と、第一ＬＥＤ基板（１）と第二ＬＥＤ基板（２）を電気接続するコネクタ（１５，２５）を含む。第二切欠部（２１）と、第二爪部（５２）のうち第二切欠部（２１）に挿通された部分との長手方向（Ｄ１）の寸法差を第二クリアランスとし、第一切欠部（１１）と、第一爪部（５１）のうち第一切欠部（１１）に挿通された部分との長手方向（Ｄ１）の寸法差を第一クリアランスとしたとき、第二クリアランスは第一クリアランスよりも大きい。 (Aspect)
The light source unit (8) of the first aspect includes a base member (5), a plurality of LED substrates (1, 2, ...), A mounting structure, a power supply device (4), and an energizing unit. The base member (5) is formed with a long mounting surface (50) having a longitudinal direction (D1). Each of the plurality of LED substrates (1, 2, ...) Is long. The mounting structure is a structure in which a plurality of LED substrates (1, 2, ...) Are mounted on the mounting surface (50) so as to be lined up in a row in the longitudinal direction (D1). The power supply device (4) is arranged on the side opposite to the plurality of LED substrates (1, 2, ...) With the base member (5) interposed therebetween. The energizing unit electrically connects a plurality of LED substrates (1, 2, ...) To the power supply device (4). The plurality of LED substrates (1, 2, ...) Include a first LED substrate (1) and a second LED substrate (2) adjacent to the first LED substrate (1) in the longitudinal direction (D1). The mounting structure includes a first claw portion (51) of the base member (5) and a first missing portion (1) formed on the first LED substrate (1) so that the first claw portion (51) can be inserted. 11), the second claw portion (52) of the base member (5), and the second notch portion (21) formed in the second LED substrate (2) so that the second claw portion (52) is inserted. )including. The energizing portion includes a conductor (6) that electrically connects the power supply device (4) and the first LED substrate (1) through the base member (5), and the first LED substrate (1) and the second LED substrate (1). Includes connectors (15, 25) that electrically connect 2). The dimensional difference in the longitudinal direction (D1) between the second notch (21) and the portion of the second claw (52) inserted through the second notch (21) is defined as the second clearance, and the second clearance is completely cut. When the dimensional difference in the longitudinal direction (D1) between the portion (11) and the portion of the first claw portion (51) inserted through the first missing portion (11) is taken as the first clearance, the second clearance is Larger than the first clearance.

第１の態様の光源ユニット（８）によれば、従来技術のように配線を引き回すことなく、第一ＬＥＤ基板（１）と第二ＬＥＤ基板（２）をそれぞれ電源装置（４）につなぐことができ、製造工程の簡略化を図ることができる。加えて、第１の態様の光源ユニット（８）では、第二爪部（５２）が第二切欠部（２１）内で長手方向（Ｄ１）に移動可能な寸法が、第一爪部（５１）が第一切欠部（１１）内で長手方向（Ｄ１）に移動可能な寸法よりも、大きい。そのため、第一ＬＥＤ基板（１）と第二ＬＥＤ基板（２）が熱膨張を原因として破損を生じることが、効果的に抑えられる。 According to the light source unit (8) of the first aspect, the first LED board (1) and the second LED board (2) are connected to the power supply device (4), respectively, without routing the wiring as in the prior art. This makes it possible to simplify the manufacturing process. In addition, in the light source unit (8) of the first aspect, the dimension in which the second claw portion (52) can be moved in the longitudinal direction (D1) in the second notch portion (21) is the first claw portion (51). ) Is larger than the dimension that can be moved in the longitudinal direction (D1) in the first missing portion (11). Therefore, it is possible to effectively prevent the first LED substrate (1) and the second LED substrate (2) from being damaged due to thermal expansion.

第２の態様の光源ユニット（８）は、第１の態様において下記の構成を更に備える。第２の態様の光源ユニット（８）では、長手方向（Ｄ１）において、第二切欠部（２１）の寸法は第一切欠部（１１）の寸法よりも大きい。 The light source unit (8) of the second aspect further includes the following configuration in the first aspect. In the light source unit (8) of the second aspect, the dimension of the second notch (21) is larger than the dimension of the first notch (11) in the longitudinal direction (D1).

第２の態様の光源ユニット（８）によれば、第一ＬＥＤ基板（１）と第二ＬＥＤ基板（２）で切り欠きの寸法形状に違いを設けることにより、第一ＬＥＤ基板（１）と第二ＬＥＤ基板（２）が熱膨張を原因として破損を生じることが、効果的に抑えられる。 According to the light source unit (8) of the second aspect, the first LED substrate (1) and the second LED substrate (2) are different from the first LED substrate (1) by providing a difference in the size and shape of the notch. It is possible to effectively prevent the second LED substrate (2) from being damaged due to thermal expansion.

第３の態様の光源ユニット（８）は、第１又は第２の態様において下記の構成を更に備える。第３の態様の光源ユニット（８）において、複数のＬＥＤ基板（１，２，…）は、三つ以上のＬＥＤ基板（１，２，…）である。第一ＬＥＤ基板（１）は、取付面（５０）において長手方向（Ｄ１）に一列に並ぶ三つ以上のＬＥＤ基板（１，２，…）のうち、長手方向（Ｄ１）の両端を除いた位置にある。 The light source unit (8) of the third aspect further includes the following configuration in the first or second aspect. In the light source unit (8) of the third aspect, the plurality of LED substrates (1, 2, ...) Are three or more LED substrates (1, 2, ...). The first LED substrate (1) has three or more LED substrates (1, 2, ...) Lined up in a row in the longitudinal direction (D1) on the mounting surface (50), excluding both ends in the longitudinal direction (D1). In position.

第３の態様の光源ユニット（８）によれば、三つ以上のＬＥＤ基板（１，２，…）のうち長手方向（Ｄ１）の両端のものが、熱膨張の影響で長手方向（Ｄ１）に大きく変位することが抑えられる。 According to the light source unit (8) of the third aspect, of the three or more LED substrates (1, 2, ...), Those at both ends in the longitudinal direction (D1) are in the longitudinal direction (D1) due to the influence of thermal expansion. It is possible to prevent large displacement.

第４の態様の光源ユニット（８）は、第１又は第２の態様において下記の構成を更に備える。第４の態様の光源ユニット（８）は、電源装置（４）を複数備え、かつ複数の電源装置（４）に対して導電体（６）を介して一対一で電気接続される第一ＬＥＤ基板（１）を複数備える。複数の第一ＬＥＤ基板（１）は、取付面（５０）において長手方向（Ｄ１）に一列に並ぶ複数のＬＥＤ基板（１，２，…）のうち、長手方向（Ｄ１）の両端を除いた位置にある。 The light source unit (8) of the fourth aspect further includes the following configuration in the first or second aspect. The light source unit (8) of the fourth aspect includes a plurality of power supply devices (4), and is electrically connected to the plurality of power supply devices (4) on a one-to-one basis via a conductor (6). A plurality of substrates (1) are provided. The plurality of first LED substrates (1) exclude both ends in the longitudinal direction (D1) from the plurality of LED substrates (1, 2, ...) Arranged in a row in the longitudinal direction (D1) on the mounting surface (50). In position.

第４の態様の光源ユニット（８）によれば、複数のＬＥＤ基板（１，２，…）のうち長手方向（Ｄ１）の両端のものが、熱膨張の影響で長手方向（Ｄ１）に大きく変位することが抑えられる。 According to the light source unit (8) of the fourth aspect, of the plurality of LED substrates (1, 2, ...), Those at both ends in the longitudinal direction (D1) are greatly affected by thermal expansion in the longitudinal direction (D1). Displacement is suppressed.

第１の態様の照明器具（９）は、第１から第４のいずれか一つの態様の光源ユニット（８）と、光源ユニット（８）を支持する器具本体（８５）を備える。 The lighting fixture (9) of the first aspect includes a light source unit (8) of any one of the first to fourth aspects, and an appliance main body (85) that supports the light source unit (8).

第１の態様の照明器具（９）によれば、照明器具（９）の製造工程の簡略化を図ることができ、加えて、光源ユニット（８）の第一ＬＥＤ基板（１）と第二ＬＥＤ基板（２）が熱膨張を原因として破損を生じることが、効果的に抑えられる。 According to the luminaire (9) of the first aspect, the manufacturing process of the luminaire (9) can be simplified, and in addition, the first LED substrate (1) and the second LED substrate (1) of the light source unit (8) can be simplified. It is possible to effectively prevent the LED substrate (2) from being damaged due to thermal expansion.

１第一ＬＥＤ基板
１１第一切欠部
１５コネクタ
２第二ＬＥＤ基板
２１第二切欠部
２５コネクタ
４電源装置
５ベース部材
５０取付面
５１第一爪部
５２第二爪部
６導電体
８光源ユニット
８５器具本体
９照明器具
Ｄ１長手方向 1 1st LED board 11 1st notch 15 Connector 2 2nd LED board 21 2nd notch 25 Connector 4 Power supply 5 Base member 50 Mounting surface 51 1st claw 52 2nd claw 6 Conductor 8 Light source unit 85 Instrument body 9 Lighting fixture D1 Longitudinal direction

Claims

A base member on which a long mounting surface having a longitudinal direction is formed, and
Multiple LED boards, each of which is long,
A mounting structure in which the plurality of LED substrates are mounted on the mounting surface so as to be arranged in a row in the longitudinal direction.
A power supply device arranged on the side opposite to the plurality of LED substrates with the base member interposed therebetween.
A power supply unit for electrically connecting the plurality of LED substrates to the power supply device is provided.
The plurality of LED substrates include a first LED substrate and a second LED substrate adjacent to the first LED substrate in the longitudinal direction.
The mounting structure includes a first claw portion of the base member, a first missing portion formed on the first LED substrate so that the first claw portion is inserted, and a second portion of the base member. The claw portion and the second notch portion formed in the second LED substrate so that the second claw portion is inserted include.
The energizing portion includes a conductor that electrically connects the power supply device and the first LED substrate through the base member, and a connector that electrically connects the first LED substrate and the second LED substrate.
The dimensional difference in the longitudinal direction between the second notch and the portion of the second claw that is inserted through the second notch is defined as the second clearance, and the first notch and the first claw are defined as the second clearance. A light source unit in which the second clearance is larger than the first clearance, where the dimensional difference in the longitudinal direction from the portion inserted through the first missing portion is defined as the first clearance.

The light source unit according to claim 1, wherein the size of the second notch is larger than the size of the first notch in the longitudinal direction.

The plurality of LED substrates are three or more LED substrates.
The light source unit according to claim 1 or 2, wherein the first LED substrate is located at a position excluding both ends in the longitudinal direction among the three or more LED substrates arranged in a row in the longitudinal direction on the mounting surface.

A plurality of the first LED substrates are provided, and the plurality of power supply devices are electrically connected to the plurality of power supply devices on a one-to-one basis via the conductor.
The light source unit according to claim 1 or 2, wherein the plurality of first LED substrates are located at positions excluding both ends in the longitudinal direction among the plurality of LED substrates arranged in a row in the longitudinal direction on the mounting surface.

The light source unit according to any one of claims 1 to 4 and
A lighting fixture including a fixture body that supports the light source unit.