JP6395078B2

JP6395078B2 - Light source unit and lighting apparatus using the same

Info

Publication number: JP6395078B2
Application number: JP2014158359A
Authority: JP
Inventors: 俊伸大森; 猛陣内; 敦志入川; 晋司小出
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2014-08-04
Filing date: 2014-08-04
Publication date: 2018-09-26
Anticipated expiration: 2034-08-04
Also published as: JP2016035851A

Description

本発明は、一般に光源ユニット及びそれを用いた照明器具に関し、より詳細には発光素子を光源とする光源ユニット及びそれを用いた照明器具に関する。 The present invention generally relates to a light source unit and a lighting fixture using the same, and more particularly to a light source unit using a light emitting element as a light source and a lighting fixture using the same.

従来、発光素子を光源とする発光装置が提供されている（例えば特許文献１参照）。特許文献１に記載された発光装置は、発光素子が前面に実装された放熱基板と、発光素子の前方に配置される配光制御用のレンズと、放熱基板にレンズを固定するための固定ホルダとを備える。 Conventionally, a light-emitting device using a light-emitting element as a light source has been provided (see, for example, Patent Document 1). A light-emitting device described in Patent Document 1 includes a heat dissipation substrate having a light-emitting element mounted on the front surface, a light distribution control lens disposed in front of the light-emitting element, and a fixing holder for fixing the lens to the heat dissipation substrate. With.

レンズは、発光素子から遠くなるほど外側に拡がる逆円錐形に形成されており、発光素子から発せられた光は、レンズ内で反射を繰り返した後、レンズ前面に対して直交する方向（前方）に照射される。 The lens is formed in an inverted conical shape that spreads outward as the distance from the light emitting element increases. The light emitted from the light emitting element is repeatedly reflected in the lens, and then in a direction (front) perpendicular to the front surface of the lens. Irradiated.

また従来、光源ユニット側に放熱部材を設けた照明器具も提供されている。この照明器具は、光源ユニットと、光源ユニットを保持する器具本体とを備え、器具本体に対して光源ユニットが着脱自在に取り付けられる。 Conventionally, there has also been provided a lighting fixture provided with a heat dissipation member on the light source unit side. The lighting fixture includes a light source unit and a fixture main body that holds the light source unit, and the light source unit is detachably attached to the fixture main body.

光源ユニットは、一面に発光素子が実装された基板と、発光素子を覆うようにして基板の前方に配置されるレンズと、基板及びレンズが取り付けられる取付部材と、発光素子で発生した熱を放熱する放熱部材とを有する。 The light source unit radiates heat generated by the light emitting element, a substrate on which the light emitting element is mounted, a lens disposed in front of the substrate so as to cover the light emitting element, a mounting member to which the substrate and the lens are attached, and And a heat dissipating member.

放熱部材は、矩形板状に形成された底壁部と、底壁部の両端から底壁部と直交する方向に突出する一対の側壁部とでＵ字状に形成されており、これらの底壁部及び側壁部で形成される空間内に、一体に組み付けられたレンズ、基板及び取付部材が配置される。 The heat dissipating member is formed in a U-shape with a bottom wall portion formed in a rectangular plate shape and a pair of side wall portions projecting from both ends of the bottom wall portion in a direction perpendicular to the bottom wall portion. An integrally assembled lens, substrate, and mounting member are disposed in a space formed by the wall portion and the side wall portion.

特開２００９−１１０８２１号公報JP 2009-110821 A

上述した後者の照明器具において平凸レンズを用いた場合、発光素子から発せられた光は、レンズ内を透過し、レンズ表面（出射面）から放射状に照射される。そのため、放熱部材の側壁部の高さ寸法がレンズの厚み寸法よりも大きい場合には、レンズ表面から照射された光の一部が側壁部によって、いわゆる「けられ（口径食）」の生じる虞があった。 When the plano-convex lens is used in the latter lighting fixture described above, the light emitted from the light emitting element is transmitted through the lens and irradiated radially from the lens surface (outgoing surface). Therefore, when the height dimension of the side wall portion of the heat radiating member is larger than the thickness dimension of the lens, a part of light irradiated from the lens surface may be so-called “scratched (vignetting)” by the side wall portion. was there.

本発明は上記問題点に鑑みて為されており、照明空間側への照射光量の低下を抑えた光源ユニット及びそれを用いた照明器具を提供することを目的とする。 The present invention has been made in view of the above-described problems, and an object thereof is to provide a light source unit that suppresses a decrease in the amount of light applied to the illumination space and a lighting fixture using the light source unit.

本発明の光源ユニットは、一面に発光素子が実装された基板と、前記発光素子を覆うように配置されて前記発光素子から発せられる光の配光を制御する光学部材と、前記基板及び前記光学部材が取り付けられる取付部材と、前記発光素子で発生する熱を放熱する放熱部材と、前記取付部材に取り付けられた前記光学部材の周囲を取り囲むように配置されて前記光学部材を透過した光を内周面で反射させる筒状の反射部材とを備え、前記放熱部材は、底壁部と、前記底壁部の端部から前記底壁部と交差する方向に突出する側壁部とを有し、前記基板、前記光学部材、前記取付部材及び前記反射部材は、前記底壁部と前記側壁部とで囲まれる空間内に配置され、前記取付部材及び前記反射部材は、互いを一体的に結合させる結合部をそれぞれ有しており、前記光学部材は、平坦な入射面を有する平凸レンズであり、前記光学部材は、前記発光素子と前記光学部材とが並ぶ方向における前記反射部材の両側の開口端のうち前記発光素子に近い側の開口端に配置されていることを特徴とする。 The light source unit of the present invention includes a substrate on which a light emitting element is mounted on one surface, an optical member disposed so as to cover the light emitting element and controlling light distribution of light emitted from the light emitting element, the substrate, and the optical A mounting member to which the member is mounted; a heat radiating member that radiates heat generated by the light emitting element; and a light that passes through the optical member and is disposed so as to surround the periphery of the optical member that is mounted to the mounting member. A cylindrical reflection member that reflects on the peripheral surface, and the heat dissipation member includes a bottom wall portion, and a side wall portion that protrudes in a direction intersecting the bottom wall portion from an end portion of the bottom wall portion, The substrate, the optical member, the attachment member, and the reflection member are disposed in a space surrounded by the bottom wall portion and the side wall portion, and the attachment member and the reflection member integrally couple each other. Each has a joint Cage, wherein the optical member is a plano-convex lens having a flat incidence surface, the optical member is closer to the light emitting element of each side of the open end of the reflecting member in a direction to the light emitting element and the optical member are arranged It is arrange | positioned at the opening end of the side .

本発明の照明器具は、上記の光源ユニットと、前記光源ユニットを保持する器具本体とを備えていることを特徴とする。 The lighting fixture of this invention is equipped with said light source unit and the fixture main body holding the said light source unit, It is characterized by the above-mentioned.

本発明の構成によれば、照明空間側への照射光量の低下を抑えた光源ユニット及びそれを用いた照明器具を提供することができるという効果がある。 According to the structure of this invention, there exists an effect that the light source unit which suppressed the fall of the irradiation light quantity to the illumination space side, and a lighting fixture using the same can be provided.

本発明の実施形態に係る光源ユニットの分解斜視図である。It is a disassembled perspective view of the light source unit which concerns on embodiment of this invention. 本発明の実施形態に係る照明器具の分解斜視図である。It is a disassembled perspective view of the lighting fixture which concerns on embodiment of this invention. 本発明の実施形態に係る照明器具において器具本体からカバーを取り外した状態の斜視図である。It is a perspective view of the state which removed the cover from the fixture main body in the lighting fixture which concerns on embodiment of this invention. 図４Ａは本発明の実施形態に係る照明器具に用いられる取付部材の正面図、図４Ｂは背面図、図４Ｃ及び図４Ｄは側面図である。4A is a front view of a mounting member used in the lighting apparatus according to the embodiment of the present invention, FIG. 4B is a rear view, and FIGS. 4C and 4D are side views. 図５Ａは本発明の実施形態に係る照明器具に用いられる反射部材の上面図、図５Ｂは側面図である。FIG. 5A is a top view of a reflecting member used in the lighting apparatus according to the embodiment of the present invention, and FIG. 5B is a side view. 本発明の実施形態に係る光源ユニットの要部拡大図である。It is a principal part enlarged view of the light source unit which concerns on embodiment of this invention.

本発明の実施形態に係る光源ユニット２及び照明器具１０について、図面を参照しながら具体的に説明する。但し、以下に説明する構成は、本発明の一例に過ぎず、本発明は下記の実施形態に限定されることなく、この実施形態以外であっても、本発明に係る技術的思想を逸脱しない範囲であれば、設計等に応じて種々の変更が可能である。 The light source unit 2 and the lighting fixture 10 according to the embodiment of the present invention will be specifically described with reference to the drawings. However, the configuration described below is merely an example of the present invention, and the present invention is not limited to the following embodiment, and the technical idea according to the present invention is not deviated from other embodiments. Within the range, various changes can be made according to the design and the like.

なお、以下の説明では特に断りがない限り、図２において上下方向（第１の方向）、前後方向（第２の方向）、左右方向（第３の方向）をそれぞれ規定する。したがって、本実施形態では、器具本体１の軸方向が上下方向となる。但し、これらの方向は光源ユニット２及び照明器具１０の取付方向を規定するものではない。 In the following description, unless otherwise specified, the vertical direction (first direction), the front-rear direction (second direction), and the left-right direction (third direction) are respectively defined in FIG. Therefore, in this embodiment, the axial direction of the instrument body 1 is the vertical direction. However, these directions do not define the mounting direction of the light source unit 2 and the lighting fixture 10.

本実施形態の照明器具１０は、例えば天井に埋め込まれる天井埋込型の非常灯であって、商用電源（外部電源）が停電になると光源ユニット２を点灯させる。この照明器具１０は、図２に示すように、器具本体１と、光源ユニット２と、電源装置３と、非常用電源４と、カバー５とを備える。 The lighting fixture 10 of this embodiment is a ceiling-embedded emergency light that is embedded in the ceiling, for example, and turns on the light source unit 2 when a commercial power source (external power source) fails. As illustrated in FIG. 2, the lighting fixture 10 includes a fixture main body 1, a light source unit 2, a power supply device 3, an emergency power supply 4, and a cover 5.

器具本体１は、例えば鋼板などの不燃材料からなり、上下方向を軸方向とする円筒状に形成された本体部１１を有する。この本体部１１の下部には、本体部１１の下面を開放することで形成された円形の開口部１１１が設けられており、開口部１１１の開口端縁には、外向きに突出する鍔部１２が全周に亘って設けられている。 The instrument main body 1 is made of a non-combustible material such as a steel plate, for example, and has a main body portion 11 formed in a cylindrical shape whose axial direction is the vertical direction. A circular opening 111 formed by opening the lower surface of the main body 11 is provided at the lower part of the main body 11, and a flange projecting outward is formed at the opening edge of the opening 111. 12 is provided over the entire circumference.

また、本体部１１の側壁には、上下方向に沿ってＴ字状に開口する一対の切欠部１１２，１１２が、本体部１１の中心軸に対して対称な位置にそれぞれ設けられている。これらの切欠部１１２，１１２には、取付金具６，６が上下方向に移動自在に配置されており、これらの取付金具６，６と鍔部１２との間で天井板を挟み込むことで、器具本体１が天井に取り付けられる。 In addition, a pair of notches 112 and 112 that are opened in a T shape along the vertical direction are provided on the side wall of the main body 11 at positions that are symmetrical with respect to the central axis of the main body 11. In these cutout portions 112 and 112, mounting brackets 6 and 6 are arranged so as to be movable in the vertical direction, and by sandwiching a ceiling plate between these mounting brackets 6 and 6 and the flange portion 12, an appliance is obtained. The main body 1 is attached to the ceiling.

さらに、本体部１１の側壁には、カバー５に取り付けられた一対の取付ばね７，７がそれぞれ引っ掛けられる２個１組のばね受け部１１３，１１３が、本体部１１の一部を切り起こすことで形成されている。また、各組のばね受け部１１３，１１３は、本体部１１の中心軸に対して対称な位置に設けられている。 Further, a pair of spring receiving portions 113, 113 on which a pair of attachment springs 7, 7 attached to the cover 5 are respectively hooked on the side wall of the main body portion 11 cuts a part of the main body portion 11. It is formed with. Further, each set of spring receiving portions 113, 113 is provided at a symmetrical position with respect to the central axis of the main body portion 11.

電源装置３は、図２に示すように、合成樹脂製のケース３１を有する。ケース３１の左側面（非常用電源４との対向面）における上端寄りの位置には、外部からの電源線（図示せず）が接続される端子台３２が取り付けられている。この端子台３２は、図示しない接続構造により電源装置３に機械的且つ電気的に接続され、電源線を介して入力される商用電源を電源装置３に出力する。 As shown in FIG. 2, the power supply device 3 includes a case 31 made of synthetic resin. A terminal block 32 to which an external power line (not shown) is connected is attached to a position near the upper end of the left side surface of the case 31 (the surface facing the emergency power supply 4). The terminal block 32 is mechanically and electrically connected to the power supply device 3 by a connection structure (not shown), and outputs a commercial power supply input via the power supply line to the power supply device 3.

また、ケース３１の下面には、下向きに突出し且つ先端に引掛爪（図示せず）を有する矩形板状の引掛部３１１が設けられている。さらに、ケース３１の下面には、非常用電源４の充電状態を点検するための点検スイッチ３３が設けられている。また、ケース３１の下面において点検スイッチ３３の近傍には、上下方向に長い筒体３４が設けられており、この筒体３４の内部には、非常用電源４の充電状態を表示するモニタランプ（図示せず）が配置されている。 In addition, a rectangular plate-like hooking portion 311 that protrudes downward and has a hooking claw (not shown) at the tip is provided on the lower surface of the case 31. Further, an inspection switch 33 for inspecting the charging state of the emergency power supply 4 is provided on the lower surface of the case 31. A cylindrical body 34 that is long in the vertical direction is provided in the vicinity of the inspection switch 33 on the lower surface of the case 31, and a monitor lamp (indicating the charging state of the emergency power supply 4) is provided inside the cylindrical body 34. (Not shown) is arranged.

ケース３１の内部には、商用電源の正常時に非常用電源４を充電する充電回路（図示せず）と、商用電源が停電になると非常用電源４から出力される電源を光源ユニット２に供給する給電回路（図示せず）とが実装された基板（図示せず）が収納されている。また、この基板には、光源ユニット２のコネクタ部２３２内に収納された第１接続端子２７（図１参照）に接続される第２接続端子（図示せず）と、点検スイッチ３３と、上記モニタランプとが実装されている。 Inside the case 31, a charging circuit (not shown) for charging the emergency power source 4 when the commercial power source is normal and a power source output from the emergency power source 4 to the light source unit 2 when the commercial power source fails. A substrate (not shown) on which a power feeding circuit (not shown) is mounted is accommodated. Further, on this board, a second connection terminal (not shown) connected to the first connection terminal 27 (see FIG. 1) housed in the connector portion 232 of the light source unit 2, the inspection switch 33, and the above A monitor lamp is mounted.

非常用電源４は、図２に示すように、合成樹脂製のケース４１を有し、ケース４１の内部には複数の蓄電池（図示せず）が収納されている。また、ケース４１の下面には、下向きに突出し且つ先端に引掛爪４１１１を有する矩形板状の引掛部４１１が設けられている。これらの電源装置３及び非常用電源４は、図示しない接続構造により互いに機械的且つ電気的に接続され、光源ユニット２を収納するための収納部１００がケース３１及びケース４１に跨るようにして下面中央に形成される（図３参照）。 As shown in FIG. 2, the emergency power supply 4 has a case 41 made of synthetic resin, and a plurality of storage batteries (not shown) are accommodated in the case 41. In addition, a rectangular plate-shaped hooking portion 411 that protrudes downward and has a hooking claw 4111 at the tip is provided on the lower surface of the case 41. The power supply device 3 and the emergency power supply 4 are mechanically and electrically connected to each other by a connection structure (not shown), and the lower surface of the storage unit 100 for storing the light source unit 2 straddles the case 31 and the case 41. It is formed in the center (see FIG. 3).

カバー５は、例えば鋼板などの不燃材料からなり、円板状に形成された本体部５１を有し、本体部５１の中央には円形の開口部５１１が設けられている。そして、照明器具１０を組み立てた状態では、光源ユニット２のレンズ２２が開口部５１１を臨むように配置され、光源ユニット２から発せられる光が開口部５１１を通して外部に照射される。 The cover 5 is made of, for example, a non-combustible material such as a steel plate, and has a main body 51 formed in a disk shape. A circular opening 511 is provided at the center of the main body 51. In the assembled state of the lighting fixture 10, the lens 22 of the light source unit 2 is disposed so as to face the opening 511, and light emitted from the light source unit 2 is irradiated to the outside through the opening 511.

また、本体部５１において開口部５１１の近傍には、楕円形状の開口部５１２が設けられている。そして、照明器具１０を組み立てた状態では、光源ユニット２の点検スイッチ３３及び筒体３４が開口部５１２を臨むように配置され、作業者は、開口部５１２を通して点検スイッチ３３を操作し、上記モニタランプを確認する。 In the main body 51, an elliptical opening 512 is provided in the vicinity of the opening 511. In the assembled state of the luminaire 10, the inspection switch 33 and the cylinder 34 of the light source unit 2 are arranged so as to face the opening 512, and the operator operates the inspection switch 33 through the opening 512, and the monitor Check the lamp.

光源ユニット２は、図１に示すように、基板２１と、レンズ２２（光学部材）と、取付部材２３と、放熱部材２４と、放熱シート２５と、反射部材２６とを備える。 As shown in FIG. 1, the light source unit 2 includes a substrate 21, a lens 22 (optical member), a mounting member 23, a heat radiating member 24, a heat radiating sheet 25, and a reflecting member 26.

基板２１は矩形板状に形成され、基板２１の下面には円形のＬＥＤチップ２１０（発光素子）が実装されている。この基板２１は、取付部材２３のベース部２３１の中央に設けられた開口部２３１１を通してＬＥＤチップ２１０を下側に露出させた状態で、ベース部２３１の上面に載せられる。 The substrate 21 is formed in a rectangular plate shape, and a circular LED chip 210 (light emitting element) is mounted on the lower surface of the substrate 21. The substrate 21 is placed on the upper surface of the base portion 231 in a state where the LED chip 210 is exposed downward through an opening 2311 provided in the center of the base portion 231 of the mounting member 23.

レンズ２２は、例えば透明なガラスにより形成され、平坦な入射面を有する平凸レンズからなる本体部２２１を備える。本体部２２１の上端縁には、外向きに突出する鍔部２２２が全周に亘って設けられている。また、本体部２２１の下面（出射面）は、外縁部から中心部に近づくほど下側への突出量が大きくなるような凸形状に形成されている。このレンズ２２は、基板２１のＬＥＤチップ２１０を覆うようにして基板２１の下側に配置され、ＬＥＤチップ２１０から発せられる光の配光を制御する。 The lens 22 includes a main body portion 221 made of, for example, transparent glass and made of a plano-convex lens having a flat incident surface. On the upper end edge of the main body part 221, a flange part 222 protruding outward is provided over the entire circumference. In addition, the lower surface (outgoing surface) of the main body 221 is formed in a convex shape such that the amount of downward protrusion increases as the distance from the outer edge toward the center increases. The lens 22 is disposed on the lower side of the substrate 21 so as to cover the LED chip 210 of the substrate 21 and controls the light distribution of light emitted from the LED chip 210.

取付部材２３は、例えば合成樹脂成型品であって、図４Ａ〜図４Ｄに示すように、上下方向（図４Ａ中の紙面に垂直な方向）を厚み方向とする板状に形成されたベース部２３１を有する。ベース部２３１の右端縁には、上向きに突出する角筒状のコネクタ部２３２が一体に設けられている。このコネクタ部２３２は、第１接続端子２７，２７がそれぞれ収納される２つの収納部２３２２，２３２２を有している。 The mounting member 23 is, for example, a synthetic resin molded product, and as shown in FIGS. 4A to 4D, a base portion formed in a plate shape whose thickness direction is the vertical direction (direction perpendicular to the paper surface in FIG. 4A). 231. A rectangular tube-shaped connector portion 232 that protrudes upward is integrally provided at the right end edge of the base portion 231. The connector portion 232 has two storage portions 2322 and 2322 in which the first connection terminals 27 and 27 are stored, respectively.

また、ベース部２３１の中央には、上下方向（ベース部２３１の厚み方向）に貫通する矩形の開口部２３１１が設けられている。さらに、ベース部２３１の下面には、Ｕ字状に形成された一対の溝２３１２，２３１３が、開口部２３１１とコネクタ部２３２の各収納部２３２２との間を繋ぐように設けられている。 In addition, a rectangular opening 2311 penetrating in the vertical direction (the thickness direction of the base portion 231) is provided at the center of the base portion 231. Further, a pair of U-shaped grooves 2312 and 2313 are provided on the lower surface of the base portion 231 so as to connect between the opening portion 2311 and the storage portions 2322 of the connector portion 232.

また、ベース部２３１の前後方向（図４Ａ中の左右方向）における両端縁には、側方に突出し且つ先端が下向きに突出するＬ字状の固定部２３１５，２３１７がそれぞれ設けられている。固定部２３１５の先端には、内向き（開口部２３１１側）に突出する固定爪２３１５ａが設けられ、固定部２３１７の先端には、内向き（開口部２３１１側）に突出する固定爪２３１７ａが設けられている。 In addition, L-shaped fixing portions 2315 and 2317 are provided at both ends of the base portion 231 in the front-rear direction (left-right direction in FIG. 4A), protruding sideways and protruding downward. A fixing claw 2315a protruding inward (opening 2311 side) is provided at the tip of the fixing portion 2315, and a fixing claw 2317a protruding inward (opening 2311 side) is provided at the tip of the fixing portion 2317. It has been.

さらに、ベース部２３１の左右方向（図４Ａ中の上下方向）における両端縁には、側方に突出し且つ先端が下向きに突出するＬ字状の固定部２３１４，２３１６がそれぞれ設けられている。固定部２３１４の先端には、内向き（開口部２３１１側）に突出する固定爪２３１４ａが設けられ、固定部２３１６の先端には、内向き（開口部２３１１側）に突出する固定爪２３１６ａが設けられている。 Furthermore, L-shaped fixing portions 2314 and 2316 are provided at both ends of the base portion 231 in the left-right direction (vertical direction in FIG. 4A), protruding sideways and the tip protruding downward. A fixing claw 2314a that protrudes inward (opening 2311 side) is provided at the tip of the fixing portion 2314, and a fixing claw 2316a that protrudes inward (opening 2311 side) is provided at the tip of the fixing portion 2316. It has been.

ここで、固定部２３１４〜２３１７をベース部２３１の下面から直接立ち上げるのではなく、本実施形態のようにＬ字状に湾曲させることで、固定部２３１４〜２３１７を撓みやすくすることができる。 Here, the fixing portions 2314 to 2317 are not raised directly from the lower surface of the base portion 231, but can be easily bent by bending the fixing portions 2314 to 2317 into an L shape as in the present embodiment.

また、ベース部２３１の前後方向における開口部２３１１と固定部２３１５との間には、ベース部２３１の下面から下向きに突出するリブ２３２４が設けられている。さらに、ベース部２３１の前後方向における開口部２３１１と固定部２３１７との間には、ベース部２３１の下面から下向きに突出するリブ２３２６が設けられている。 A rib 2324 that protrudes downward from the lower surface of the base portion 231 is provided between the opening portion 2311 and the fixing portion 2315 in the front-rear direction of the base portion 231. Further, a rib 2326 that protrudes downward from the lower surface of the base portion 231 is provided between the opening portion 2311 and the fixing portion 2317 in the front-rear direction of the base portion 231.

また、ベース部２３１の左右方向における開口部２３１１と固定部２３１４との間には、ベース部２３１の下面から下向きに突出するリブ２３２３が設けられている。さらに、ベース部２３１の左右方向における開口部２３１１と固定部２３１６との間には、ベース部２３１の下面から下向きに突出するリブ２３２５が設けられている。 A rib 2323 that protrudes downward from the lower surface of the base portion 231 is provided between the opening portion 2311 and the fixing portion 2314 in the left-right direction of the base portion 231. Further, a rib 2325 that protrudes downward from the lower surface of the base portion 231 is provided between the opening portion 2311 and the fixing portion 2316 in the left-right direction of the base portion 231.

また、ベース部２３１の周方向における固定部２３１４と固定部２３１５との間には、ベース部２３１の下面から下向きに突出し且つ弧状に湾曲するガイド部２３１９が設けられている。さらに、ベース部２３１の周方向における固定部２３１５と固定部２３１６との間には、ベース部２３１の下面から下向きに突出し且つ弧状に湾曲するガイド部２３２０が設けられている。 A guide portion 2319 that protrudes downward from the lower surface of the base portion 231 and is curved in an arc shape is provided between the fixing portion 2314 and the fixing portion 2315 in the circumferential direction of the base portion 231. Further, a guide portion 2320 that protrudes downward from the lower surface of the base portion 231 and is curved in an arc shape is provided between the fixing portion 2315 and the fixing portion 2316 in the circumferential direction of the base portion 231.

また、ベース部２３１の周方向における固定部２３１６と固定部２３１７との間には、ベース部２３１の下面から下向きに突出し且つ弧状に湾曲するガイド部２３２１が設けられている。さらに、ベース部２３１の周方向における固定部２３１７と固定部２３１４との間には、ベース部２３１の下面から下向きに突出し且つ弧状に湾曲するガイド部２３１８が設けられている。これらのガイド部２３１８〜２３２１は、取付部材２３のベース部２３１にレンズ２２を取り付ける際のガイドとして機能する。 A guide portion 2321 that protrudes downward from the lower surface of the base portion 231 and is curved in an arc shape is provided between the fixing portion 2316 and the fixing portion 2317 in the circumferential direction of the base portion 231. Further, a guide portion 2318 that protrudes downward from the lower surface of the base portion 231 and is curved in an arc shape is provided between the fixing portion 2317 and the fixing portion 2314 in the circumferential direction of the base portion 231. These guide portions 2318 to 2321 function as guides when the lens 22 is attached to the base portion 231 of the attachment member 23.

また、ガイド部２３１８〜２３２０には、反射部材２６に設けられた３つの差込片２６３がそれぞれ差し込まれる差込溝２３１８ａ〜２３２０ａ（図４Ｃ及び図４Ｄ参照）が設けられている。さらに、ガイド部２３２１には、反射部材２６を固定するための固定ねじ（図示せず）がねじ込まれるねじ孔２３３１を有するボス部２３３が一体に設けられている。 The guide portions 2318 to 2320 are provided with insertion grooves 2318a to 2320a (see FIGS. 4C and 4D) into which the three insertion pieces 263 provided on the reflection member 26 are respectively inserted. Further, the guide portion 2321 is integrally provided with a boss portion 233 having a screw hole 2331 into which a fixing screw (not shown) for fixing the reflecting member 26 is screwed.

また、ベース部２３１の上面には、図４Ｂに示すように、開口部２３１１の周りを取り囲むように溝２３２８が形成されており、光源ユニット２を組み立てた状態では、基板２１の上面に密着した状態で放熱シート２５が溝２３２８内に収納される。 Further, as shown in FIG. 4B, a groove 2328 is formed on the upper surface of the base portion 231 so as to surround the opening portion 2311. When the light source unit 2 is assembled, the groove is closely attached to the upper surface of the substrate 21. In the state, the heat dissipation sheet 25 is stored in the groove 2328.

放熱部材２４は、例えば放熱性の高いアルミニウムからなり、矩形板状の底壁部２４１と、底壁部２４１の端部より底壁部２４１と直交する方向（下向き）に突出する４つの側壁部２４２〜２４５とで下面が開口する箱形に形成されている。側壁部２４２の下端には、外向き且つ底壁部２４１と平行に延出する延出部２４６が一体に設けられ、側壁部２４４の下端には、外向き且つ底壁部２４１と平行に延出する延出部２４７が一体に設けられている。 The heat dissipating member 24 is made of, for example, aluminum having high heat dissipating property, and has a rectangular plate-like bottom wall portion 241 and four side wall portions projecting in a direction (downward) perpendicular to the bottom wall portion 241 from the end of the bottom wall portion 241. 242 to 245 are formed in a box shape whose lower surface is open. An extending portion 246 that extends outward and parallel to the bottom wall portion 241 is integrally provided at the lower end of the side wall portion 242, and extends outward and parallel to the bottom wall portion 241 at the lower end of the side wall portion 244. An extending portion 247 to be extended is provided integrally.

また、側壁部２４３の下端で且つ前後方向における両端には、外向き且つ底壁部２４１と平行に延出する一対の延出部２４８が一体に設けられ、側壁部２４５の下端且つ後寄りには、外向き且つ底壁部２４１と平行に延出する延出部２４９が一体に設けられている。 In addition, a pair of extending portions 248 that extend outward and in parallel with the bottom wall portion 241 are integrally provided at both ends in the front-rear direction at the lower end of the side wall portion 243, and are provided at the lower end and the rear side of the side wall portion 245. Are integrally provided with an extending portion 249 that extends outward and parallel to the bottom wall portion 241.

さらに、側壁部２４２には、非常用電源４のケース４１に設けられた引掛部４１１の引掛爪４１１１が引っ掛けられる矩形の引掛孔２４２１が設けられている。また、側壁部２４４には、電源装置３のケース３１に設けられた引掛部３１１の引掛爪（図示せず）が引っ掛けられる矩形の引掛孔２４４１（図２参照）が設けられている。 Further, the side wall portion 242 is provided with a rectangular hooking hole 2421 for hooking a hooking claw 4111 of the hooking portion 411 provided in the case 41 of the emergency power supply 4. Further, the side wall 244 is provided with a rectangular hooking hole 2441 (see FIG. 2) in which a hooking claw (not shown) of the hooking part 311 provided in the case 31 of the power supply device 3 is hooked.

反射部材２６は、図５Ａ及び図５Ｂに示すように、板金に曲げ加工することで形成され、上下方向（図５Ａ中の紙面に垂直な方向）における両端が開口する円筒状の本体部２６１を有する。本体部２６１における上側の開口端縁には、反射部材２６を取付部材２３に固定するための固定片２６２が一体に設けられている。この固定片２６２には、固定ねじ（図示せず）を通すための貫通孔２６２１が設けられている。 As shown in FIGS. 5A and 5B, the reflecting member 26 is formed by bending a sheet metal, and a cylindrical main body portion 261 having both ends opened in the vertical direction (direction perpendicular to the paper surface in FIG. 5A). Have. A fixing piece 262 for fixing the reflecting member 26 to the mounting member 23 is integrally provided on the upper opening edge of the main body 261. The fixing piece 262 is provided with a through hole 2621 for passing a fixing screw (not shown).

また、本体部２６１における上側の開口端縁には、複数（図５Ａでは３つ）の差込片２６３が本体部２６１の周方向において等間隔に設けられている。これらの差込片２６３は、本体部２６１の上端から上向きに突出し、且つ先端が外向きに折り曲げられたＬ字状に形成されている。さらに、本体部２６１の内周面２６１１には、反射効率を高めるための白色塗装が施されている。 A plurality (three in FIG. 5A) of insertion pieces 263 are provided at equal intervals in the circumferential direction of the main body 261 at the upper opening edge of the main body 261. These insertion pieces 263 are formed in an L shape that protrudes upward from the upper end of the main body 261 and is bent outward. Further, the inner peripheral surface 2611 of the main body portion 261 is subjected to white coating for improving the reflection efficiency.

次に、光源ユニット２の組立手順について説明する。 Next, the assembly procedure of the light source unit 2 will be described.

まず最初に、作業者は、基板２１の下面に実装されたＬＥＤチップ２１０を取付部材２３のベース部２３１の開口部２３１１を通して下側に露出させた状態で、基板２１をベース部２３１の上面に載せる。さらに、作業者は、導体２８，２８の一端に接続された第１接続端子２７，２７をそれぞれコネクタ部２３２の収納部２３２２，２３２２に収納した後、導体２８，２８の他端をそれぞれ基板２１の電極２１１，２１１に半田接続する。このとき、導体２８，２８は、ベース部２３１に形成された溝２３１２，２３１３にそれぞれ配置される。 First, the operator places the substrate 21 on the upper surface of the base portion 231 in a state where the LED chip 210 mounted on the lower surface of the substrate 21 is exposed downward through the opening 2311 of the base portion 231 of the mounting member 23. Put it on. Furthermore, the operator stores the first connection terminals 27 and 27 connected to one ends of the conductors 28 and 28 in the storage portions 2322 and 2322 of the connector portion 232, respectively, and then connects the other ends of the conductors 28 and 28 to the substrate 21. The electrodes 211 and 211 are connected by soldering. At this time, the conductors 28 and 28 are disposed in grooves 2312 and 2313 formed in the base portion 231, respectively.

続けて、作業者は、ベース部２３１に載せた基板２１の上面に放熱シート２５を載せた後、ベース部２３１の上面と放熱部材２４の底壁部２４１の下面とが密着するようにして取付部材２３を放熱部材２４に取り付ける。 Subsequently, the operator places the heat radiation sheet 25 on the upper surface of the substrate 21 placed on the base portion 231, and then attaches the upper surface of the base portion 231 and the lower surface of the bottom wall portion 241 of the heat radiating member 24 in close contact with each other. The member 23 is attached to the heat radiating member 24.

このとき、取付部材２３のベース部２３１に設けた貫通孔２３２７，２３２７にそれぞれ通した取付ねじ（図示せず）を、放熱部材２４の底壁部２４１に設けたねじ孔２４１１，２４１１にそれぞれねじ込むことで、取付部材２３が放熱部材２４に取り付けられる。またこのとき、コネクタ部２３２は、底壁部２４１に設けられた切欠部２４１２を通して上側に突出する。さらにこのとき、放熱シート２５は、放熱部材２４の底壁部２４１に密着しており、基板２１のＬＥＤチップ２１０で発生した熱が放熱シート２５を介して放熱部材２４に伝えられる。 At this time, mounting screws (not shown) passed through the through holes 2327 and 2327 provided in the base portion 231 of the mounting member 23 are screwed into screw holes 2411 and 2411 provided in the bottom wall portion 241 of the heat radiating member 24, respectively. Thus, the attachment member 23 is attached to the heat dissipation member 24. At this time, the connector part 232 protrudes upward through the notch part 2412 provided in the bottom wall part 241. Further, at this time, the heat radiating sheet 25 is in close contact with the bottom wall portion 241 of the heat radiating member 24, and heat generated in the LED chip 210 of the substrate 21 is transmitted to the heat radiating member 24 through the heat radiating sheet 25.

次に、作業者は、レンズ２２の軸方向が上下方向となり且つ鍔部２２２側が上側となるように向きを調整した状態でレンズ２２を取付部材２３に押し付け、レンズ２２を取付部材２３に取り付ける。 Next, the operator presses the lens 22 against the mounting member 23 with the orientation adjusted so that the axial direction of the lens 22 is the vertical direction and the flange 222 side is on the upper side, and the lens 22 is attached to the mounting member 23.

このとき、レンズ２２を取付部材２３に押し付けることで、レンズ２２の鍔部２２２により固定部２３１４〜２３１７の固定爪２３１４ａ〜２３１７ａが外向きに押され、固定部２３１４〜２３１７が外向きに撓められる。この状態から、レンズ２２を取付部材２３にさらに押し付けると、レンズ２２の鍔部２２２が固定爪２３１４ａ〜２３１７ａを乗り越え、レンズ２２の上面（入射面）がリブ２３２３〜２３２６に接触する。 At this time, by pressing the lens 22 against the mounting member 23, the fixing claws 2314 a to 2317 a of the fixing portions 2314 to 2317 are pushed outward by the flange portion 222 of the lens 22, and the fixing portions 2314 to 2317 are bent outward. It is done. When the lens 22 is further pressed against the mounting member 23 from this state, the flange portion 222 of the lens 22 gets over the fixing claws 2314a to 2317a, and the upper surface (incident surface) of the lens 22 contacts the ribs 2323 to 2326.

そして、固定部２３１４〜２３１７が弾性力によって元の位置に復帰することで、固定部２３１４〜２３１７の固定爪２３１４ａ〜２３１７ａとリブ２３２３〜２３２６との間に鍔部２２２が挟まれ、レンズ２２が取付部材２３に取り付けられる。 Then, the fixing portions 2314 to 2317 return to their original positions by the elastic force, so that the flange portion 222 is sandwiched between the fixing claws 2314a to 2317a and the ribs 2323 to 2326 of the fixing portions 2314 to 2317, and the lens 22 is It is attached to the attachment member 23.

そして最後に、作業者が反射部材２６を取付部材２３に取り付けることで、光源ユニット２の組み立てが完了する。 Finally, the worker attaches the reflection member 26 to the attachment member 23, whereby the assembly of the light source unit 2 is completed.

このとき、反射部材２６に設けた３つの差込片２６３が、取付部材２３に設けた３つの差込溝２３１８ａ〜２３２０ａの開口側にそれぞれ位置するように反射部材２６を取付部材２３に組み付け、反射部材２６を所定方向に回転させる。これにより、各差込片２６３が対応する差込溝２３１８ａ〜２３２０ａに差し込まれ、反射部材２６が取付部材２３に取り付けられる（図６参照）。 At this time, the reflection member 26 is assembled to the attachment member 23 so that the three insertion pieces 263 provided on the reflection member 26 are positioned on the opening sides of the three insertion grooves 2318a to 2320a provided on the attachment member 23, respectively. The reflecting member 26 is rotated in a predetermined direction. Thereby, each insertion piece 263 is inserted in the corresponding insertion groove 2318a-2320a, and the reflection member 26 is attached to the attachment member 23 (refer FIG. 6).

反射部材２６を取付部材２３に取り付けた状態では、図６に示すように、固定片２６２の貫通孔２６２１とボス部２３３のねじ孔２３３１とが重なり、固定ねじ（図示せず）をねじ孔２３３１にねじ込むことで、反射部材２６が取付部材２３に固定される。ここに、本実施形態では、３つの差込片２６３と、３つの差込溝２３１８ａ〜２３２０ａとで結合部が構成されている。 In the state where the reflection member 26 is attached to the attachment member 23, as shown in FIG. 6, the through hole 2621 of the fixing piece 262 overlaps with the screw hole 2331 of the boss portion 233, and a fixing screw (not shown) is attached to the screw hole 2331. The reflection member 26 is fixed to the attachment member 23 by screwing into the attachment member 23. Here, in this embodiment, the connection part is comprised by the three insertion pieces 263 and the three insertion grooves 2318a-2320a.

ところで、レンズ２２を取付部材２３に取り付けた状態では、レンズ２２の上面（入射面）がリブ２３２３〜２３２６の下面に接触している。また、ベース部２３１の周方向においてリブ２３２３〜２３２６がない部分では、レンズ２２の鍔部２２２がガイド部２３１８〜２３２１に接触している。その結果、レンズ２２の上面とベース部２３１の下面との間の隙間に塵埃が進入するのを抑えることができる。 By the way, in the state where the lens 22 is attached to the attachment member 23, the upper surface (incident surface) of the lens 22 is in contact with the lower surfaces of the ribs 2323 to 2326. Further, in a portion where the ribs 2323 to 2326 are not provided in the circumferential direction of the base portion 231, the flange portion 222 of the lens 22 is in contact with the guide portions 2318 to 2321. As a result, it is possible to prevent dust from entering the gap between the upper surface of the lens 22 and the lower surface of the base portion 231.

また、レンズ２２及び取付部材２３を放熱部材２４に取り付けた状態では、放熱部材２４の底壁部２４１と４つの側壁部２４２〜２４５とで形成される空間内に、レンズ２２及び取付部材２３が配置される。そのため、側壁部２４２〜２４５の上下方向における寸法がレンズ２２の厚み寸法よりも大きくなればなるほど、側壁部２４２〜２４５による口径食が生じやすくなる。 When the lens 22 and the mounting member 23 are attached to the heat radiating member 24, the lens 22 and the mounting member 23 are in the space formed by the bottom wall portion 241 and the four side wall portions 242 to 245 of the heat radiating member 24. Be placed. Therefore, as the dimension in the vertical direction of the side wall parts 242 to 245 becomes larger than the thickness dimension of the lens 22, vignetting due to the side wall parts 242 to 245 is more likely to occur.

したがって、上述のような構成では、レンズ２２の周囲を取り囲むように反射部材２６を配置するのが好ましく、レンズ２２を透過したＬＥＤチップ２１０からの光を反射部材２６の内周面２６１１により照明空間側（下側）へ反射させることができる。 Therefore, in the configuration as described above, it is preferable to arrange the reflecting member 26 so as to surround the lens 22, and the light from the LED chip 210 that has passed through the lens 22 is illuminated by the inner peripheral surface 2611 of the reflecting member 26. It can be reflected to the side (lower side).

次に、照明器具１０の施工手順について説明する。 Next, the construction procedure of the lighting fixture 10 will be described.

まず最初に、作業者は、電源装置３が右側、非常用電源４が左側となるように配置した後、図示しない接続構造により電源装置３と非常用電源４とを機械的且つ電気的に接続する。そして、作業者は、互いに接続された電源装置３及び非常用電源４を器具本体１の内部に収納する。 First, the worker arranges the power supply device 3 on the right side and the emergency power supply 4 on the left side, and then mechanically and electrically connects the power supply device 3 and the emergency power supply 4 with a connection structure (not shown). To do. Then, the worker stores the power supply device 3 and the emergency power supply 4 that are connected to each other inside the appliance main body 1.

電源装置３と非常用電源４とを組み付けた状態では、ケース３１及びケース４１の下面中央に収納部１００が形成され、作業者は、レンズ２２が下側となる向きで光源ユニット２を収納部１００に収納する。このとき、放熱部材２４の側壁部２４２の引掛孔２４２１にケース４１の引掛部４１１の引掛爪４１１１が引っ掛けられ、且つ、側壁部２４４の引掛孔２４４１にケース３１の引掛部３１１の引掛爪（図示せず）が引っ掛けられる。これにより、光源ユニット２が電源装置３及び非常用電源４に保持される。 In a state in which the power supply device 3 and the emergency power supply 4 are assembled, the storage unit 100 is formed at the center of the lower surface of the case 31 and the case 41, and the operator stores the light source unit 2 with the lens 22 facing downward. 100. At this time, the hooking claw 4111 of the hooking portion 411 of the case 41 is hooked in the hooking hole 2421 of the side wall 242 of the heat radiating member 24, and the hooking claw of the hooking portion 311 of the case 31 is hooked in the hooking hole 2441 of the side wall 244 (see FIG. (Not shown) is caught. Thereby, the light source unit 2 is held by the power supply device 3 and the emergency power supply 4.

そして最後に、作業者が、器具本体１の開口部１１１を塞ぐようにカバー５を器具本体１に取り付けると、照明器具１０の施工が完了する。このとき、カバー５に取り付けられた各取付ばね７が、器具本体１の対応するばね受け部１１３，１１３に引っ掛けられ、カバー５が器具本体１に保持される。 Finally, when the operator attaches the cover 5 to the instrument main body 1 so as to close the opening 111 of the instrument main body 1, the construction of the lighting fixture 10 is completed. At this time, each attachment spring 7 attached to the cover 5 is hooked on the corresponding spring receiving portions 113, 113 of the instrument body 1, and the cover 5 is held by the instrument body 1.

而して、本実施形態によれば、反射部材２６の本体部２６１の内周面２６１１を反射面とし、且つレンズ２２の周囲を取り囲むように反射部材２６を配置している。これにより、レンズ２２を透過したＬＥＤチップ２１０からの光を内周面２６１１により照明空間側（下側）へ反射させることができ、反射部材２６を取り付けない場合に比べて照明空間側への照射光量の低下を抑えることができる。 Thus, according to the present embodiment, the reflection member 26 is disposed so that the inner peripheral surface 2611 of the main body 261 of the reflection member 26 is the reflection surface and the lens 22 is surrounded. Thereby, the light from the LED chip 210 that has passed through the lens 22 can be reflected to the illumination space side (lower side) by the inner peripheral surface 2611, and irradiation to the illumination space side compared to the case where the reflection member 26 is not attached. A decrease in the amount of light can be suppressed.

また、本実施形態のように、３つの差込片２６３と、３つの差込溝２３１８ａ〜２３２０ａとで結合部を構成した場合には、取付部材２３に対して反射部材２６を回転させるだけで、反射部材２６を取付部材２３に取り付けることができる。これにより、光源ユニット２の組立作業性が向上するという利点がある。 Further, as in the present embodiment, when the coupling portion is configured by the three insertion pieces 263 and the three insertion grooves 2318a to 2320a, the reflection member 26 is simply rotated with respect to the attachment member 23. The reflection member 26 can be attached to the attachment member 23. Thereby, there exists an advantage that the assembly workability | operativity of the light source unit 2 improves.

なお、本実施形態では、発光素子としてＬＥＤチップ２１０を例に説明したが、発光素子はＬＥＤチップ２１０に限らず、例えば有機ＥＬやレーザ・ダイオードなどであってもよい。また、本実施形態では、結合部として、差込溝２３１８ａ〜２３２０ａを取付部材２３に設け、差込片２６３を反射部材２６に設けたが、差込片を取付部材２３に設け、差込溝を反射部材２６に設けてもよい。 In this embodiment, the LED chip 210 is described as an example of the light emitting element. However, the light emitting element is not limited to the LED chip 210, and may be, for example, an organic EL or a laser diode. In the present embodiment, the insertion grooves 2318a to 2320a are provided in the attachment member 23 and the insertion piece 263 is provided in the reflection member 26 as the coupling portion, but the insertion piece is provided in the attachment member 23 and the insertion groove. May be provided on the reflecting member 26.

さらに、結合部は、差込片と差込片が差し込まれる差込溝に限らず、取付部材２３と反射部材２６とを互いに結合させることができれば、他の構成であってもよい。例えば、上述の実施形態におけるレンズ２２の取付構造のように、反射部材２６の上端縁に鍔部を設け、ベース部２３１との間で上記鍔部を挟み込む固定部を取付部材２３に設けてもよい。また、本実施形態では、レンズ２２が平凸レンズの場合を例に説明したが、レンズ２２は平凸レンズに限らず、両凸レンズや、平凹レンズ、両凹レンズなどであってもよい。 Further, the coupling portion is not limited to the insertion groove and the insertion groove into which the insertion piece is inserted, and may have another configuration as long as the attachment member 23 and the reflection member 26 can be coupled to each other. For example, as in the mounting structure of the lens 22 in the above-described embodiment, a hook portion may be provided on the upper edge of the reflecting member 26, and a fixing portion that sandwiches the hook portion with the base portion 231 may be provided on the mounting member 23. Good. In the present embodiment, the case where the lens 22 is a plano-convex lens has been described as an example. However, the lens 22 is not limited to a plano-convex lens, and may be a biconvex lens, a plano-concave lens, a biconcave lens, or the like.

以上説明したように、本実施形態の光源ユニット２は、基板２１と、レンズ２２（光学部材）と、取付部材２３と、放熱部材２４と、反射部材２６とを備える。基板２１は、一面にＬＥＤチップ２１０（発光素子）が実装される。レンズ２２は、ＬＥＤチップ２１０を覆うように配置されてＬＥＤチップ２１０から発せられる光の配光を制御する。取付部材２３は、基板２１及びレンズ２２が取り付けられる。放熱部材２４は、ＬＥＤチップ２１０で発生する熱を放熱する。反射部材２６は、筒状であって、取付部材２３に取り付けられたレンズ２２の周囲を取り囲むように配置され、レンズ２２を透過した光を内周面２６１１で反射させる。放熱部材２４は、底壁部２４１と、底壁部２４１の端部から底壁部２４１と交差する方向に突出する側壁部２４２〜２４５とを有する。基板２１、レンズ２２、取付部材２３及び反射部材２６は、底壁部２４１と側壁部２４２〜２４５とで囲まれる空間内に配置される。取付部材２３及び反射部材２６は、互いを一体的に結合させる結合部（差込片２６３又は差込溝２３１８ａ〜２３２０ａ）をそれぞれ有している。 As described above, the light source unit 2 of the present embodiment includes the substrate 21, the lens 22 (optical member), the mounting member 23, the heat radiating member 24, and the reflecting member 26. The substrate 21 has an LED chip 210 (light emitting element) mounted on one surface. The lens 22 is disposed so as to cover the LED chip 210 and controls the light distribution of the light emitted from the LED chip 210. The substrate 21 and the lens 22 are attached to the attachment member 23. The heat radiating member 24 radiates heat generated in the LED chip 210. The reflection member 26 is cylindrical and is disposed so as to surround the periphery of the lens 22 attached to the attachment member 23, and reflects the light transmitted through the lens 22 on the inner peripheral surface 2611. The heat radiating member 24 includes a bottom wall portion 241 and side wall portions 242 to 245 that protrude from the end portion of the bottom wall portion 241 in a direction intersecting the bottom wall portion 241. The substrate 21, the lens 22, the attachment member 23, and the reflection member 26 are disposed in a space surrounded by the bottom wall portion 241 and the side wall portions 242 to 245. The attachment member 23 and the reflection member 26 have coupling portions (insertion pieces 263 or insertion grooves 2318a to 2320a) that integrally couple each other.

上記構成によれば、レンズ２２を透過したＬＥＤチップ２１０からの光を反射部材２６の内周面２６１１により照明空間側へ反射させることができ、照明空間側への照射光量の低下を抑えることができる。 According to the above configuration, the light from the LED chip 210 that has passed through the lens 22 can be reflected to the illumination space side by the inner peripheral surface 2611 of the reflection member 26, and the reduction in the amount of light irradiated to the illumination space side can be suppressed. it can.

また、本実施形態の光源ユニット２のように、前記結合部は、差込片２６３と差込溝２３１８ａ〜２３２０ａとで構成されるのが好ましい。この場合、差込片２６３は、取付部材２３及び反射部材２６の何れか一方に設けられ、且つ差込溝２３１８ａ〜２３２０ａは、取付部材２３及び反射部材２６の他方に設けられる。そして、取付部材２３に対して反射部材２６を回転させることで、差込片２６３が差込溝２３１８ａ〜２３２０ａに差し込まれる。 Moreover, like the light source unit 2 of this embodiment, it is preferable that the said coupling | bond part is comprised with the insertion piece 263 and the insertion grooves 2318a-2320a. In this case, the insertion piece 263 is provided in one of the attachment member 23 and the reflection member 26, and the insertion grooves 2318 a to 2320 a are provided in the other of the attachment member 23 and the reflection member 26. And the insertion piece 263 is inserted in the insertion grooves 2318a-2320a by rotating the reflection member 26 with respect to the attachment member 23. FIG.

上記構成によれば、取付部材２３に対して反射部材２６を回転させ、差込片２６３を差込溝２３１８ａ〜２３２０ａに差し込むだけで反射部材２６を取付部材２３に取り付けることができ、光源ユニット２の組立作業性が向上する。 According to the above configuration, the reflection member 26 can be attached to the attachment member 23 simply by rotating the reflection member 26 with respect to the attachment member 23 and inserting the insertion piece 263 into the insertion grooves 2318a to 2320a. Assembling workability is improved.

本実施形態の照明器具１０は、光源ユニット２と、光源ユニット２を保持する器具本体１とを備える。 The lighting fixture 10 of the present embodiment includes a light source unit 2 and a fixture body 1 that holds the light source unit 2.

上記構成によれば、上述の光源ユニット２を用いることによって、照明空間側への照射光量の低下を抑えた照明器具１０を提供することができる。 According to the said structure, the lighting fixture 10 which suppressed the fall of the irradiation light quantity to the illumination space side can be provided by using the above-mentioned light source unit 2. FIG.

２光源ユニット
２１基板
２２レンズ（光学部材）
２３取付部材
２４放熱部材
２６反射部材
２１０ＬＥＤチップ（発光素子）
２４１底壁部
２４２〜２４５側壁部
２６３差込片（結合部）
２３１８ａ〜２３２０ａ差込溝（結合部）
２６１１内周面 2 Light source unit 21 Substrate 22 Lens (optical member)
23 mounting member 24 heat radiating member 26 reflecting member 210 LED chip (light emitting element)
241 Bottom wall part 242-245 Side wall part 263 Insertion piece (joint part)
2318a to 2320a Insertion groove (joint part)
2611 inner circumference

Claims

A substrate having a light emitting element mounted on one surface;
An optical member that is disposed so as to cover the light emitting element and controls light distribution of light emitted from the light emitting element;
An attachment member to which the substrate and the optical member are attached;
A heat dissipating member that dissipates heat generated by the light emitting element;
A cylindrical reflection member that is disposed so as to surround the optical member attached to the attachment member and reflects light transmitted through the optical member on an inner peripheral surface;
The heat dissipating member has a bottom wall portion, and a side wall portion protruding in a direction intersecting the bottom wall portion from an end portion of the bottom wall portion,
The substrate, the optical member, the mounting member, and the reflecting member are disposed in a space surrounded by the bottom wall portion and the side wall portion,
The attachment member and the reflection member each have a coupling portion that integrally couples each other ,
The optical member is a plano-convex lens having a flat incident surface,
The light source unit , wherein the optical member is disposed at an opening end closer to the light emitting element among opening ends on both sides of the reflecting member in a direction in which the light emitting element and the optical member are arranged .

The coupling portion is provided on one of the attachment member and the reflection member, and on the other of the attachment member and the reflection member, and rotates the reflection member with respect to the attachment member. The light source unit according to claim 1, wherein the light source unit includes an insertion groove into which the insertion piece is inserted.

3. A lighting fixture comprising: the light source unit according to claim 1; and a fixture main body for holding the light source unit.