JP7033742B2 - Light source unit and lighting equipment - Google Patents

Light source unit and lighting equipment Download PDF

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JP7033742B2
JP7033742B2 JP2017144011A JP2017144011A JP7033742B2 JP 7033742 B2 JP7033742 B2 JP 7033742B2 JP 2017144011 A JP2017144011 A JP 2017144011A JP 2017144011 A JP2017144011 A JP 2017144011A JP 7033742 B2 JP7033742 B2 JP 7033742B2
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mounting member
terminal portion
power supply
printed wiring
wiring board
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JP2019029073A (en
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正博 清水
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Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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Priority to CN201821178094.1U priority patent/CN208487450U/en
Publication of JP2019029073A publication Critical patent/JP2019029073A/en
Priority to JP2021197982A priority patent/JP7390626B2/en
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Priority to JP2023191277A priority patent/JP2024003128A/en
Priority to JP2023191276A priority patent/JP2024012549A/en
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本発明は、光源ユニット及び照明器具に関し、より詳細には、光源と電源装置を備えた光源ユニット、及び当該光源ユニットを備えた照明器具に関する。 The present invention relates to a light source unit and a luminaire, and more particularly to a light source unit including a light source and a power supply device, and a luminaire including the light source unit.

光源ユニットの従来例として、特許文献１に記載されている発光ユニットを例示する。特許文献１記載の発光ユニットは、それぞれに複数の発光素子（発光ダイオード）が実装されている長尺の基板と、基板を支持する長尺の支持部材と、電源部と、長尺の透光性カバーとを備えている。 As a conventional example of the light source unit, the light emitting unit described in Patent Document 1 will be illustrated. The light emitting unit described in Patent Document 1 includes a long substrate on which a plurality of light emitting elements (light emitting diodes) are mounted, a long support member for supporting the substrate, a power supply unit, and a long translucent light. It has a sex cover.

基板は、支持部材の下面に取り付けられる。透光性カバーは、支持部材の下面に取り付けられて複数の発光素子から放射される光を透過する。電源部は、発光素子の点灯回路（電源回路）を備える電源基板と、電源基板を内部に収容する筐体（電源ボックス）と、電源回路から発光素子に対して電力を供給するための配線とを有している。この配線は、支持部材に設けられた貫通孔（貫通部）を通して基板と電気的に接続されている。 The substrate is attached to the lower surface of the support member. The translucent cover is attached to the lower surface of the support member and transmits light emitted from a plurality of light emitting elements. The power supply unit includes a power supply board having a lighting circuit (power supply circuit) for the light emitting element, a housing (power supply box) for accommodating the power supply board inside, and wiring for supplying power from the power supply circuit to the light emitting element. have. This wiring is electrically connected to the substrate through a through hole (penetration portion) provided in the support member.

特開２０１６－０８１７８３号公報Japanese Unexamined Patent Publication No. 2016-081783

ところで、特許文献１記載の発光ユニットでは、基板と支持部材との熱膨張係数が大きく異なる場合、発光素子の発熱による基板の膨張量と支持部材の膨張量との差が大きいために電源回路から発光素子への配線に過大な応力が加わる可能性がある。 By the way, in the light emitting unit described in Patent Document 1, when the coefficient of thermal expansion between the substrate and the support member is significantly different, the difference between the expansion amount of the substrate and the expansion amount of the support member due to the heat generation of the light emitting element is large, so that the power supply circuit Excessive stress may be applied to the wiring to the light emitting element.

本発明の目的は、電源装置から固体発光素子への配線にかかる応力の低減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である。 An object of the present invention is to provide a light source unit and a lighting fixture capable of reducing stress applied to wiring from a power supply device to a solid-state light emitting element.

本発明の一態様に係る光源ユニットは、固体発光素子及び前記固体発光素子と電気的に接続されている入力端子部を有する長尺の基板と、前記固体発光素子に電力を供給する電源回路を有する電源装置とを備える。前記光源ユニットは、前記基板及び前記電源装置が取り付けられる取付部材と、前記電源回路と前記入力端子部を電気的に接続する接続部材とを備える。前記電源回路は、プリント配線板を有している。前記プリント配線板は、前記基板と同系の材質によって長尺の板状に形成され、かつ、前記電源回路で生成される前記電力を出力する出力端子部を有している。前記取付部材は、第１面と前記第１面の裏面となる第２面を有する長尺の板状に形成され、前記第１面に前記基板が取り付けられ、前記第２面に前記電源装置が取り付けられている。さらに、前記取付部材は、前記第１面から前記第２面に貫通する貫通孔が設けられている。前記入力端子部及び前記出力端子部は、前記取付部材の厚み方向から見て前記貫通孔と重なる位置に配置されている。前記接続部材は、前記貫通孔を通して前記入力端子部と前記出力端子部とを電気的に接続するように構成されている。前記取付部材に対する前記基板の固定位置及び前記取付部材に対する前記プリント配線板の固定位置が、前記接続部材から見て、前記取付部材の長手方向の同じ側である。前記基板が前記取付部材に対して固定されている範囲の少なくとも一部は、前記取付部材の短手方向から見て、前記プリント配線板が前記取付部材に対して固定されている範囲と重なっている。 The light source unit according to one aspect of the present invention includes a solid light emitting element, a long substrate having an input terminal portion electrically connected to the solid light emitting element, and a power supply circuit for supplying electric power to the solid light emitting element. It is equipped with a power supply device. The light source unit includes a mounting member to which the board and the power supply device are mounted, and a connecting member that electrically connects the power supply circuit and the input terminal portion. The power supply circuit has a printed wiring board. The printed wiring board is formed in a long plate shape by a material similar to the substrate, and has an output terminal portion for outputting the electric power generated by the power supply circuit. The mounting member is formed in the shape of a long plate having a first surface and a second surface as a back surface of the first surface, the substrate is attached to the first surface, and the power supply device is attached to the second surface. Is attached. Further, the mounting member is provided with a through hole penetrating from the first surface to the second surface. The input terminal portion and the output terminal portion are arranged at positions overlapping with the through hole when viewed from the thickness direction of the mounting member. The connecting member is configured to electrically connect the input terminal portion and the output terminal portion through the through hole. The fixed position of the board with respect to the mounting member and the fixing position of the printed wiring board with respect to the mounting member are on the same side in the longitudinal direction of the mounting member as viewed from the connecting member. At least a part of the range in which the board is fixed to the mounting member overlaps with the range in which the printed wiring board is fixed to the mounting member when viewed from the lateral direction of the mounting member. There is.

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ている。 The lighting fixture according to one aspect of the present invention includes the light source unit and the fixture main body that supports the light source unit.

本発明の光源ユニット及び照明器具は、電源装置から固体発光素子への配線にかかる応力の低減を図ることができるという効果がある。 The light source unit and the luminaire of the present invention have an effect that the stress applied to the wiring from the power supply device to the solid-state light emitting element can be reduced.

図１は、本発明の一実施形態に係る光源ユニット及び照明器具の分解斜視図である。FIG. 1 is an exploded perspective view of a light source unit and a lighting fixture according to an embodiment of the present invention. 図２は、同上の照明器具の断面図である。FIG. 2 is a cross-sectional view of the same lighting fixture. 図３は、同上の光源ユニットの電源装置の電源回路の回路図である。FIG. 3 is a circuit diagram of a power supply circuit of the power supply device of the same light source unit. 図４は、同上の電源装置の平面図である。FIG. 4 is a plan view of the power supply device of the same as above. 図５は、同上の光源ユニットの接続部材を含む一部分の分解斜視図である。FIG. 5 is an exploded perspective view of a part including the connecting member of the same light source unit. 図６Ａは、同上の光源ユニットの第１端子部材の正面図である。図６Ｂは、同上の第１端子部材の上面図である。図６Ｃは、同上の第１端子部材の背面図である。図６Ｄは、同上の第１端子部材の右側面図である。FIG. 6A is a front view of the first terminal member of the same light source unit. FIG. 6B is a top view of the first terminal member of the same. FIG. 6C is a rear view of the same first terminal member. FIG. 6D is a right side view of the same first terminal member. 図７は、同上の光源ユニットの第２端子部材とホルダの分解斜視図である。FIG. 7 is an exploded perspective view of the second terminal member and the holder of the same light source unit. 図８は、同上の光源ユニットの接続部材を含む一部分の断面図である。FIG. 8 is a cross-sectional view of a part including the connecting member of the same light source unit. 図９は、同上の光源ユニットの一部省略した断面図である。FIG. 9 is a cross-sectional view of the same light source unit in which a part is omitted. 図１０は、同上の光源ユニットの一部省略した断面図である。FIG. 10 is a cross-sectional view of the same light source unit in which a part is omitted. 図１１は、同上の光源ユニットの一部省略した上面図である。FIG. 11 is a top view of the same light source unit in which a part is omitted. 図１２は、同上の光源ユニットにおける要部の下面図である。FIG. 12 is a bottom view of a main part of the same light source unit.

本発明の一実施形態に係る光源ユニット及び照明器具について、図面を参照して詳細に説明する。ただし、下記の実施形態において説明する各図は模式的な図であり、各構成要素の大きさや厚さそれぞれの比が必ずしも実際の寸法比を反映しているとは限らない。また、以下の説明では、特に断りのない限り、図１に示す向きにおいて、光源ユニット及び照明器具の上下、左右、前後の各方向を規定する。なお、以下の実施形態で説明する構成は本発明の一例にすぎない。本発明は、以下の実施形態に限定されず、本発明の効果を奏することができれば、設計等に応じて種々の変更が可能である。 The light source unit and the lighting fixture according to the embodiment of the present invention will be described in detail with reference to the drawings. However, each figure described in the following embodiment is a schematic view, and the ratio of the size and the thickness of each component does not necessarily reflect the actual dimensional ratio. Further, in the following description, unless otherwise specified, the vertical, horizontal, and front-back directions of the light source unit and the luminaire are defined in the directions shown in FIG. The configuration described in the following embodiments is only an example of the present invention. The present invention is not limited to the following embodiments, and various modifications can be made depending on the design and the like as long as the effects of the present invention can be achieved.

本実施形態の照明器具１は天井１００に取り付けられる照明器具である。ただし、実施形態の照明器具は、壁などの天井以外の場所に取り付けられる照明器具であってもかまわない。 The lighting fixture 1 of the present embodiment is a lighting fixture attached to the ceiling 100. However, the lighting fixture of the embodiment may be a lighting fixture attached to a place other than the ceiling such as a wall.

本実施形態の照明器具１は、図１及び図２に示すように光源ユニット２と、器具本体１０とを備える。器具本体１０は、吊りボルト２００に固定され、天井１００に直付けされる。光源ユニット２は、器具本体１０に対して着脱可能に取り付けられる。 The lighting fixture 1 of the present embodiment includes a light source unit 2 and a fixture main body 10 as shown in FIGS. 1 and 2. The instrument body 10 is fixed to the hanging bolt 200 and directly attached to the ceiling 100. The light source unit 2 is detachably attached to the fixture body 10.

器具本体１０は、板金に曲げ加工を施すことで長尺かつ上面（天井１００との対向面）が開口する扁平な箱状に形成される。天井１００と反対側（下側）の器具本体１０の下面には光源ユニット２を収容するための矩形の凹部１１が器具本体１０の長手方向（左右方向）の全長に亘って設けられている。器具本体１０の短手方向（前後方向）における凹部１１の両側には、それぞれ傾斜部１２が設けられている。傾斜部１２は、凹部１１の開口端縁から器具本体１０の短手方向（前後方向）に延出し、かつ、外側に向かって上方へ傾斜する。 The instrument body 10 is formed into a flat box shape that is long and has an open upper surface (the surface facing the ceiling 100) by bending the sheet metal. On the lower surface of the fixture body 10 on the opposite side (lower side) of the ceiling 100, a rectangular recess 11 for accommodating the light source unit 2 is provided over the entire length of the fixture body 10 in the longitudinal direction (left-right direction). Inclined portions 12 are provided on both sides of the recess 11 in the lateral direction (front-back direction) of the instrument main body 10. The inclined portion 12 extends from the open end edge of the recess 11 in the lateral direction (front-back direction) of the instrument main body 10 and is inclined upward toward the outside.

電源線３０を通すための孔１１１Ａが、凹部１１の底板１１１の長手方向（左右方向）におけるほぼ中央に設けられている。さらに、吊りボルト２００を通すための孔１１１Ｂが、底板１１１の長手方向（左右方向）における両端寄りの位置にそれぞれ設けられている。そして、底板１１１の下面には端子台２５が取り付けられる。端子台２５は、電源線３０と電気的に接続される。端子台２５から接地線を含む３本の電線２５０が引き出されている。さらに、これら３本の電線２５０の先端にプラグコネクタ２５１が電気的に接続されている。 A hole 111A for passing the power line 30 is provided substantially in the center of the bottom plate 111 of the recess 11 in the longitudinal direction (left-right direction). Further, holes 111B for passing the suspension bolts 200 are provided at positions near both ends in the longitudinal direction (left-right direction) of the bottom plate 111. A terminal block 25 is attached to the lower surface of the bottom plate 111. The terminal block 25 is electrically connected to the power supply line 30. Three electric wires 250 including a ground wire are drawn out from the terminal block 25. Further, a plug connector 251 is electrically connected to the tips of these three electric wires 250.

光源ユニット２は、図２及び図５に示すように、光源部、取付部材２１、カバー２３、電源装置４、接続部材５を備える。光源部は、複数（例えば、２つ）のＬＥＤモジュール２２を備える。 As shown in FIGS. 2 and 5, the light source unit 2 includes a light source unit, a mounting member 21, a cover 23, a power supply device 4, and a connecting member 5. The light source unit includes a plurality of (for example, two) LED modules 22.

複数のＬＥＤモジュール２２は、長手方向（左右方向）に並んで配置されている。各ＬＥＤモジュール２２は、長手方向（左右方向）に長い矩形板状に形成された基板２２１を有する。基板２２１は、長尺の矩形平板状の絶縁基板と、絶縁基板の表面にプリントされた配線用の導体（銅はく）とを有している。基板２２１は、絶縁基板の表面（下面）に複数のＬＥＤ（発光ダイオード）２２０が長手方向（左右方向）に沿い、かつ、１列に並べて実装（配置）されている。複数のＬＥＤモジュール２２のいずれか１つに、接続部材５と電気的に接続される２つの入力端子部２２２が設けられている（図５参照）。なお、基板２２１を構成している絶縁基板は、例えば、ガラス布基材エポキシ樹脂基板などの樹脂製の絶縁基板であることが好ましい。 The plurality of LED modules 22 are arranged side by side in the longitudinal direction (left-right direction). Each LED module 22 has a substrate 221 formed in a rectangular plate shape long in the longitudinal direction (left-right direction). The substrate 221 has a long rectangular flat plate-shaped insulating substrate and a conductor (copper foil) for wiring printed on the surface of the insulating substrate. A plurality of LEDs (light emitting diodes) 220 are mounted (arranged) on the surface (lower surface) of the insulating substrate along the longitudinal direction (left-right direction) and arranged in a row on the substrate 221. One of the plurality of LED modules 22 is provided with two input terminal portions 222 that are electrically connected to the connecting member 5 (see FIG. 5). The insulating substrate constituting the substrate 221 is preferably a resin-made insulating substrate such as a glass cloth base material epoxy resin substrate.

各ＬＥＤモジュール２２において隣接するＬＥＤモジュール２２と対向する端部には、電源供給用の一対のコネクタ２２４がそれぞれ実装されている（図２参照）。そして、互いに隣接する両ＬＥＤモジュール２２の一対のコネクタ２２４同士が電気的に接続されることで、一方のＬＥＤモジュール２２から他方のＬＥＤモジュール２２に点灯電力が中継される。 A pair of connectors 224 for power supply are mounted on the ends of each LED module 22 facing the adjacent LED modules 22 (see FIG. 2). Then, by electrically connecting the pair of connectors 224 of both LED modules 22 adjacent to each other, the lighting power is relayed from one LED module 22 to the other LED module 22.

取付部材２１は、板金に曲げ加工を施すことでＵ字状に形成されている。取付部材２１は、長尺かつ矩形板状に形成された底板２１１と、底板２１１の短手方向（前後方向）における両端から上向きに延出される一対の側板２１２とを備える。一対の側板２１２の先端（上端）には、図２に示すように、互いに離れる向き（外向き）に傾斜する一対の傾斜部２１２Ａがそれぞれ全長に亘って設けられている。上述したＬＥＤモジュール２２は、取付部材２１の底板２１１の一部を切り起こすことで形成された複数の引掛部２１６により取付部材２１に固定される（図５参照）。これら複数の引掛部２１６のそれぞれは、底板２１１の短手方向（前後方向）の両側において、底板２１１の長手方向（左右方向）に沿って間隔を空けて並ぶように配置されている。基板２２１は、複数の引掛部２１６のうちで一対一に対応する引掛部２１６がそれぞれ挿入される複数の溝部２２１１を有している（図５参照）。複数の溝部２２１１のそれぞれは、基板２２１の長手方向（左右方向）に沿って間隔を空けて並ぶように形成されている。つまり、基板２２１は、複数の溝部２２１１のうちの対応する溝部２２１１に挿通された引掛部２１６と底板２１１との間に基板２２１が挿入されて取付部材２１に固定される（図９参照）。ただし、複数の引掛部２１６のうちで取付部材２１の長手方向の中央に最も近い位置に在る少なくとも２つの引掛部２１６（固定用の引掛部２１６Ａ）が取付部材２１に対して基板２２１を固定している。そして、複数の引掛部２１６のうちで固定用の引掛部２１６Ａを除く複数の引掛部２１６は、取付部材２１に対して基板２２１を抜け止めしている。 The mounting member 21 is formed in a U shape by bending the sheet metal. The mounting member 21 includes a long and rectangular bottom plate 211 and a pair of side plates 212 extending upward from both ends of the bottom plate 211 in the lateral direction (front-back direction). As shown in FIG. 2, a pair of inclined portions 212A that incline in a direction away from each other (outward) are provided at the tips (upper ends) of the pair of side plates 212 over the entire length. The LED module 22 described above is fixed to the mounting member 21 by a plurality of hooking portions 216 formed by cutting up a part of the bottom plate 211 of the mounting member 21 (see FIG. 5). Each of the plurality of hooking portions 216 is arranged so as to be arranged at intervals along the longitudinal direction (left-right direction) of the bottom plate 211 on both sides of the bottom plate 211 in the lateral direction (front-rear direction). The substrate 221 has a plurality of groove portions 2211 into which one-to-one corresponding hooking portions 216 are inserted among the plurality of hooking portions 216 (see FIG. 5). Each of the plurality of groove portions 2211 is formed so as to be arranged at intervals along the longitudinal direction (left-right direction) of the substrate 221. That is, the substrate 221 is fixed to the mounting member 21 by inserting the substrate 221 between the hook portion 216 inserted into the corresponding groove portion 2211 of the plurality of groove portions 2211 and the bottom plate 211 (see FIG. 9). However, among the plurality of hooking portions 216, at least two hooking portions 216 (fixing hooking portions 216A) located closest to the center in the longitudinal direction of the mounting member 21 fix the substrate 221 to the mounting member 21. is doing. Then, among the plurality of hooking portions 216, the plurality of hooking portions 216 excluding the hooking portion 216A for fixing prevent the substrate 221 from coming off from the mounting member 21.

取付部材２１は、長手方向（左右方向）における両端寄りの位置において短手方向（前後方向）の一端側に延びる一対の引掛金具２１４と、短手方向の他端側に配置される一対の引掛ばね２１５とを有している（図１参照）。 The mounting member 21 includes a pair of hook metal fittings 214 extending to one end side in the lateral direction (front-rear direction) and a pair of hooks arranged on the other end side in the lateral direction at positions near both ends in the longitudinal direction (left-right direction). It has a spring 215 (see FIG. 1).

カバー２３は、光拡散性を有する材料（例えば乳白色のアクリル樹脂）により上面（取付部材２１側の面）が開口する長尺の箱形に形成されている。カバー２３は、前後方向（幅方向）において両端側から中央側に行くほど下側への突出量が大きくなるような凸レンズ形状の曲面部２３１を有している（図２参照）。 The cover 23 is formed in a long box shape in which the upper surface (the surface on the mounting member 21 side) is opened by a light diffusing material (for example, milky white acrylic resin). The cover 23 has a convex lens-shaped curved surface portion 231 so that the amount of protrusion toward the lower side increases from both end sides to the center side in the front-rear direction (width direction) (see FIG. 2).

図２に示すように、カバー２３の前後方向における両端部に、延出部２３２がそれぞれ設けられている。各延出部２３２は、光源ユニット２が器具本体１０に取り付けられた状態で、上下方向において器具本体１０の凹部１１の開口端縁と重なる位置に設けられている。カバー２３の短手方向（前後方向）において延出部２３２の内側には、上側（取付部材２１側）に突出する突壁部２３３がそれぞれ全長に亘って設けられている。各突壁部２３３の先端には内向きに突出する突起部２３３Ａが設けられている。各突壁部２３３の根元近くには、それぞれ内向きに突出する支持片２３３Ｂが突出している。 As shown in FIG. 2, extension portions 232 are provided at both ends of the cover 23 in the front-rear direction. Each extension portion 232 is provided at a position where the light source unit 2 is attached to the fixture main body 10 and overlaps with the open end edge of the recess 11 of the fixture main body 10 in the vertical direction. Inside the extending portion 232 in the lateral direction (front-rear direction) of the cover 23, a protruding wall portion 233 projecting to the upper side (mounting member 21 side) is provided over the entire length. A protrusion 233A protruding inward is provided at the tip of each protrusion 233. A support piece 233B projecting inward protrudes near the base of each protruding wall portion 233.

電源装置４は、プリント配線板４０に電子部品が実装されて構成される電源回路４９と、電源回路４９を収納するケース４２とを有する。電源回路４９の回路図を図３に示す。電源回路４９は、電源入力部４００、フィルタ回路４０１、整流部４０２、昇圧回路４０３、降圧回路４０４、出力端子部４０５、主制御回路４０６、制御電源回路４０７、調光制御回路４０８、消灯制御回路４０９、信号入力部４１０を備える。 The power supply device 4 has a power supply circuit 49 in which electronic components are mounted on a printed wiring board 40, and a case 42 for accommodating the power supply circuit 49. The circuit diagram of the power supply circuit 49 is shown in FIG. The power supply circuit 49 includes a power supply input unit 400, a filter circuit 401, a rectifying unit 402, a booster circuit 403, a step-down circuit 404, an output terminal unit 405, a main control circuit 406, a control power supply circuit 407, a dimming control circuit 408, and a light-off control circuit. 409, a signal input unit 410 is provided.

電源入力部４００は、レセプタクルコネクタからなる。電源入力部４００には、端子台２５から引き出された電線２５０と電気的に接続されているプラグコネクタ２５１（図１参照）が差込接続される。フィルタ回路４０１は、コモンモードチョークコイル４０１０と、アクロス・ザ・ラインコンデンサ４０１１とを有する。整流部４０２は、ダイオードブリッジを有する。整流部４０２は、フィルタ回路４０１及び電源入力部４００を介して交流電源３から入力される交流電圧（交流電流）を全波整流し、脈流電圧（脈流電流）を直流出力端子から出力する。 The power input unit 400 includes a receptacle connector. A plug connector 251 (see FIG. 1) electrically connected to the electric wire 250 drawn from the terminal block 25 is plugged and connected to the power input unit 400. The filter circuit 401 includes a common mode choke coil 4010 and an across-the-line capacitor 4011. The rectifying unit 402 has a diode bridge. The rectifying unit 402 full-wave rectifies the AC voltage (AC current) input from the AC power supply 3 via the filter circuit 401 and the power input unit 400, and outputs the pulsating voltage (pulsating current) from the DC output terminal. ..

昇圧回路４０３は、従来周知の昇圧チョッパ回路（力率改善回路）である。昇圧回路４０３は、チョークコイルＬ１、スイッチング素子Ｑ１、整流素子Ｄ１、平滑コンデンサＣ１を備える。昇圧回路４０３は、整流部４０２から出力される脈流電圧を、当該脈流電圧のピーク値よりも高い直流電圧（例えば、４００Ｖの直流電圧）に変換する。 The booster circuit 403 is a conventionally known booster chopper circuit (power factor improving circuit). The booster circuit 403 includes a choke coil L1, a switching element Q1, a rectifying element D1, and a smoothing capacitor C1. The booster circuit 403 converts the pulsating voltage output from the rectifying unit 402 into a DC voltage higher than the peak value of the pulsating voltage (for example, a DC voltage of 400 V).

降圧回路４０４は、従来周知の降圧チョッパ回路（バックコンバータ）である。降圧回路４０４は、スイッチング素子Ｑ２、インダクタＬ２、整流素子Ｄ２、抵抗Ｒ１、平滑コンデンサＣ２を備える。降圧回路４０４は、昇圧回路４０３から出力される直流電圧（第１直流電圧）を、負荷であるＬＥＤモジュール２２に適した直流電圧（第２直流電圧）に降圧する。一対の出力端子部４０５のそれぞれは、プリント配線板４０（の上面）に形成されているランドである。各出力端子部４０５は、降圧回路４０４の一対の出力端子（平滑コンデンサＣ２の両端）のうちの対応する出力端子と電気的に接続される。 The step-down circuit 404 is a conventionally known step-down chopper circuit (back converter). The step-down circuit 404 includes a switching element Q2, an inductor L2, a rectifier element D2, a resistor R1, and a smoothing capacitor C2. The step-down circuit 404 steps down the DC voltage (first DC voltage) output from the booster circuit 403 to a DC voltage (second DC voltage) suitable for the LED module 22 which is a load. Each of the pair of output terminal portions 405 is a land formed on (the upper surface of) the printed wiring board 40. Each output terminal portion 405 is electrically connected to the corresponding output terminal of the pair of output terminals (both ends of the smoothing capacitor C2) of the step-down circuit 404.

主制御回路４０６は、昇圧回路４０３のスイッチング素子Ｑ１並びに降圧回路４０４のスイッチング素子Ｑ２をそれぞれスイッチングし、昇圧回路４０３の出力電圧を一定に維持するように構成される。さらに主制御回路４０６は、降圧回路４０４の出力電流を目標値に一致させるように構成される。制御電源回路４０７は、昇圧回路４０３の出力電圧から制御電圧（例えば、１５Ｖ～３Ｖ程度の直流電圧）を生成するように構成される。主制御回路４０６は、制御電源回路４０７から供給される制御電圧で動作する。 The main control circuit 406 is configured to switch the switching element Q1 of the booster circuit 403 and the switching element Q2 of the step-down circuit 404, respectively, to maintain the output voltage of the booster circuit 403 constant. Further, the main control circuit 406 is configured to match the output current of the step-down circuit 404 with the target value. The control power supply circuit 407 is configured to generate a control voltage (for example, a DC voltage of about 15V to 3V) from the output voltage of the booster circuit 403. The main control circuit 406 operates at the control voltage supplied from the control power supply circuit 407.

信号入力部４１０は、レセプタクルコネクタからなる。信号線を介して伝送されてくる制御信号が信号入力部４１０を介して調光制御回路４０８と消灯制御回路４０９に入力される。 The signal input unit 410 includes a receptacle connector. The control signal transmitted via the signal line is input to the dimming control circuit 408 and the extinguishing control circuit 409 via the signal input unit 410.

消灯制御回路４０９は、制御信号に応じて、点灯中のＬＥＤモジュール２２を消灯させるための消灯信号を生成して主制御回路４０６に出力するように構成される。主制御回路４０６は、消灯信号を受け取ると、スイッチング素子Ｑ２のスイッチングを中止して降圧回路４０４を停止させ、ＬＥＤモジュール２２を消灯するように構成される。 The extinguishing control circuit 409 is configured to generate an extinguishing signal for extinguishing the lighting LED module 22 according to the control signal and output it to the main control circuit 406. When the main control circuit 406 receives the extinguishing signal, the switching of the switching element Q2 is stopped, the step-down circuit 404 is stopped, and the LED module 22 is extinguished.

調光制御回路４０８は、制御信号に応じて、調光信号を生成して主制御回路４０６に出力するように構成される。調光信号は、ＬＥＤモジュール２２の光出力（調光レベル）を指示するための信号である。調光レベルは、定格電力が供給されているときのＬＥＤモジュール２２の光出力を１００％としたとき、ＬＥＤモジュール２２に供給される単位時間当たりの平均電力の定格電力に対する比率［％］で表される。例えば、ＬＥＤモジュール２２に供給される単位時間当たりの平均電力が定格電力の半分のとき、調光レベルが５０％となる。言い換えると、調光制御回路４０８は、制御信号で指示される調光レベルが５０％であれば、降圧回路４０４からＬＥＤモジュール２２に供給される単位時間当たりの平均電力を定格電力の半分にするように指示する調光信号を生成する。主制御回路４０６は、調光制御回路４０８から受け取る調光信号に応じて、スイッチング素子Ｑ２のデューティ比を調整するように構成される。さらに詳しく説明すると、調光制御回路４０８は、抵抗Ｒ１の両端電圧から降圧回路４０４の出力電流を検出し、当該出力電流の平均値を調光レベルに対応した目標値に一致させるように、調光信号を生成するように構成される。 The dimming control circuit 408 is configured to generate a dimming signal and output it to the main control circuit 406 in response to the control signal. The dimming signal is a signal for instructing the light output (dimming level) of the LED module 22. The dimming level is expressed as a ratio [%] of the average power supplied to the LED module 22 per unit time to the rated power, assuming that the light output of the LED module 22 when the rated power is supplied is 100%. Will be done. For example, when the average power supplied to the LED module 22 per unit time is half the rated power, the dimming level is 50%. In other words, the dimming control circuit 408 halves the average power per unit time supplied from the step-down circuit 404 to the LED module 22 if the dimming level indicated by the control signal is 50%. Generates a dimming signal to instruct. The main control circuit 406 is configured to adjust the duty ratio of the switching element Q2 according to the dimming signal received from the dimming control circuit 408. More specifically, the dimming control circuit 408 detects the output current of the step-down circuit 404 from the voltage across the resistor R1 and adjusts the average value of the output current to match the target value corresponding to the dimming level. It is configured to generate an optical signal.

プリント配線板４０は、長尺の矩形平板状の絶縁基板と、絶縁基板の裏面にプリントされた配線用の導体（銅はく）とを備えている。プリント配線板４０の表面（下面）に、コネクタや平滑コンデンサ、コモンモードチョークコイル４０１０などの、いわゆるリード部品が実装される（図４参照）。そして、プリント配線板４０の裏面（上面）に、整流部４０２、主制御回路４０６、調光制御回路４０８、消灯制御回路４０９などの表面実装部品が実装される。ここで、電源入力部４００は、プリント配線板４０の長手方向（左右方向）の端部の表面に実装される。電源入力部４００はフレームアース用の端子片４００１を有している。端子片４００１は、電源入力部４００が有するアース用のコンタクトと電気的に接続されている。端子片４００１は、端子片４００１の厚み方向（上下方向）に貫通する円形の孔を有している。また、プリント配線板４０の端部には、端子片４００１の孔と繋がるスルーホールが設けられている。信号入力部４１０は、プリント配線板４０の長手方向（左右方向）の他端部の表面に実装される。なお、プリント配線板４０を構成している絶縁基板は、例えば、紙基材フェノール樹脂基板などの樹脂製の絶縁基板であることが好ましい。 The printed wiring board 40 includes a long rectangular flat plate-shaped insulating substrate and a conductor (copper foil) for wiring printed on the back surface of the insulating substrate. So-called lead components such as a connector, a smoothing capacitor, and a common mode choke coil 4010 are mounted on the surface (lower surface) of the printed wiring board 40 (see FIG. 4). Then, surface mount components such as a rectifying unit 402, a main control circuit 406, a dimming control circuit 408, and a light-off control circuit 409 are mounted on the back surface (upper surface) of the printed wiring board 40. Here, the power input unit 400 is mounted on the surface of the end portion in the longitudinal direction (left-right direction) of the printed wiring board 40. The power input unit 400 has a terminal piece 4001 for frame grounding. The terminal piece 4001 is electrically connected to a grounding contact of the power input unit 400. The terminal piece 4001 has a circular hole penetrating the terminal piece 4001 in the thickness direction (vertical direction). Further, a through hole connected to the hole of the terminal piece 4001 is provided at the end of the printed wiring board 40. The signal input unit 410 is mounted on the surface of the other end of the printed wiring board 40 in the longitudinal direction (left-right direction). The insulating substrate constituting the printed wiring board 40 is preferably a resin-made insulating substrate such as a paper-based phenol resin substrate.

ケース４２は、図２及び図４に示すように、底板４２０と、底板４２０の短手方向に沿った端縁から立ち上がる一対の第１側板４２１Ａ、４２１Ｂと、底板４２０の長手方向に沿った端縁から立ち上がる一対の第２側板４２２Ａ、４２２Ｂとを有する。すなわち、ケース４２は、底板４２０に対向する面（下面）が開放された長尺の箱形に形成されている。ケース４２は、一対の第２側板４２２Ａ、４２２Ｂの片方である第２側板４２２Ａの先端から外向きに突出する固定板４２３を備えている。固定板４２３は、図２に示すように角樋状に形成されている。また、底板４２０の長手方向の一端部（左側の端部）にねじ止め部４２４が設けられている。ねじ止め部４２４は、底板２１１から下向きに突出するブリッジ状に形成されている。また、ねじ止め部４２４にはねじ孔が設けられている。 As shown in FIGS. 2 and 4, the case 42 has a bottom plate 420, a pair of first side plates 421A and 421B rising from the edge of the bottom plate 420 along the lateral direction, and an end along the longitudinal direction of the bottom plate 420. It has a pair of second side plates 422A and 422B that rise from the edge. That is, the case 42 is formed in a long box shape with an open surface (lower surface) facing the bottom plate 420. The case 42 includes a fixing plate 423 that projects outward from the tip of the second side plate 422A, which is one of the pair of second side plates 422A and 422B. The fixing plate 423 is formed in a gutter shape as shown in FIG. Further, a screwing portion 424 is provided at one end portion (left end portion) in the longitudinal direction of the bottom plate 420. The screwed portion 424 is formed in a bridge shape protruding downward from the bottom plate 211. Further, the screwed portion 424 is provided with a screw hole.

プリント配線板４０は、裏面を底板４２０に対向させる向きでケース４２内に収納され、一対の第２側板４２２Ａ、４２２Ｂから切り起こされる４つの爪４２２０でケース４２に固定される（図４参照）。電源入力部４００の差込口は、第１側板４２１Ｂに設けられた矩形の窓孔を通してケース４２の外に突出する。また、端子片４００１の孔に挿通されるねじ４００２がプリント配線板４０のスルーホールを通過し、ケース４２のねじ止め部４２４のねじ孔にねじ込まれる（図９参照）。 The printed wiring board 40 is housed in the case 42 with the back surface facing the bottom plate 420, and is fixed to the case 42 by four claws 4220 cut up from the pair of second side plates 422A and 422B (see FIG. 4). .. The insertion port of the power input unit 400 projects to the outside of the case 42 through a rectangular window hole provided in the first side plate 421B. Further, the screw 4002 inserted into the hole of the terminal piece 4001 passes through the through hole of the printed wiring board 40 and is screwed into the screw hole of the screwed portion 424 of the case 42 (see FIG. 9).

電源装置４は、図２に示すように、ケース４２の底板４２０が上になるように、光源ユニット２の取付部材２１の上面（第２面）に取り付けられる。具体的には、第２側板４２２Ｂ及び固定板４２３がそれぞれ取付部材２１の一対の側板２１２にねじ止めされることによって、ケース４２が取付部材２１に固定される。取付部材２１に取り付けられた状態において、ケース４２の開口が取付部材２１の底板２１１で塞がれる。なお、電源入力部４００の端子片４００１がねじ４００２を介してケース４２と導通している。したがって、光源ユニット２が器具本体１０に取り付けられた状態では、電源回路４９のグランド電位がケース４２及びケース４２と導通した取付部材２１を介して器具本体１０の電位と等電位になる。 As shown in FIG. 2, the power supply device 4 is mounted on the upper surface (second surface) of the mounting member 21 of the light source unit 2 so that the bottom plate 420 of the case 42 faces up. Specifically, the case 42 is fixed to the mounting member 21 by screwing the second side plate 422B and the fixing plate 423 to the pair of side plates 212 of the mounting member 21, respectively. In the state of being attached to the mounting member 21, the opening of the case 42 is closed by the bottom plate 211 of the mounting member 21. The terminal piece 4001 of the power input unit 400 is conducting with the case 42 via the screw 4002. Therefore, when the light source unit 2 is attached to the instrument main body 10, the ground potential of the power supply circuit 49 becomes equipotential with the potential of the instrument main body 10 via the case 42 and the attachment member 21 conducting with the case 42.

接続部材５は、図５に示すように、２つの導電体５０と、２つの第１端子部材５１と、２つの第２端子部材５２とを備えている。２つの導電体５０はそれぞれ、銅又は銅合金などの導電材料によって細い棒状（例えば、円柱状）に形成される。これら２つの導電体５０の長さは、それぞれ数１０ｍｍ程度が好ましい。 As shown in FIG. 5, the connecting member 5 includes two conductors 50, two first terminal members 51, and two second terminal members 52. Each of the two conductors 50 is formed in a thin rod shape (for example, a columnar shape) by a conductive material such as copper or a copper alloy. The length of each of these two conductors 50 is preferably about several tens of mm.

２つの第１端子部材５１は、互いに同一の形状及び同一の寸法に形成されている。したがって、以下では、１つの第１端子部材５１について説明する。第１端子部材５１は、図６Ａ～図６Ｄに示すように、矩形板状の金属板からなる板材５１０を有している。板材５１０の長手方向Ｘ１に沿った両端が、厚み方向Ｘ３に沿って同じ向きに曲げ起こされることで板材５１０が角樋状に形成される（図６Ａ参照）。第１端子部材５１は、図６Ａに示すように、板材５１０の中央（長手方向Ｘ１及び短手方向Ｘ２の中央）を貫通する挿通孔５１１を有している。第１端子部材５１は、複数（例えば、３つ）の支持片５１２と、複数（例えば、３つ）の案内片５１３とを有することが好ましい。３つの支持片５１２はそれぞれ、板材５１０が５角形状に切り起こされて板材５１０と一体に形成されている。これら３つの支持片５１２の先端部分５１２０はそれぞれ、挿通孔５１１に臨んでいる。さらに、３つの支持片５１２は、挿通孔５１１を囲むように等間隔に並んでいる（図６Ａ及び図６Ｃ参照）。３つの案内片５１３はそれぞれ、板材５１０が台形状に切り起こされて板材５１０と一体に形成されている。これら３つの案内片５１３の先端はそれぞれ、挿通孔５１１に臨んでいる。さらに、３つの案内片５１３は、挿通孔５１１を囲むように、３つの支持片５１２の間に１つずつ配置されている（図６Ａ及び図６Ｃ参照）。なお、これら３つの支持片５１２及び３つの案内片５１３はそれぞれ、挿通孔５１１に近付くに連れて、板材５１０の厚み方向Ｘ３に沿って板材５１０から遠ざかる向きに傾斜するように構成されている（図６Ｂ及び図６Ｄ参照）。 The two first terminal members 51 are formed to have the same shape and the same dimensions as each other. Therefore, one first terminal member 51 will be described below. As shown in FIGS. 6A to 6D, the first terminal member 51 has a plate material 510 made of a rectangular plate-shaped metal plate. Both ends of the plate material 510 along the longitudinal direction X1 are bent in the same direction along the thickness direction X3 to form the plate material 510 in a gutter shape (see FIG. 6A). As shown in FIG. 6A, the first terminal member 51 has an insertion hole 511 that penetrates the center of the plate member 510 (the center of the longitudinal direction X1 and the lateral direction X2). The first terminal member 51 preferably has a plurality of (for example, three) support pieces 512 and a plurality of (for example, three) guide pieces 513. Each of the three support pieces 512 is formed integrally with the plate material 510 by cutting the plate material 510 into a pentagonal shape. The tip portion 5120 of each of these three support pieces 512 faces the insertion hole 511. Further, the three support pieces 512 are arranged at equal intervals so as to surround the insertion hole 511 (see FIGS. 6A and 6C). Each of the three guide pieces 513 is formed integrally with the plate material 510 by cutting the plate material 510 into a trapezoidal shape. The tips of these three guide pieces 513 each face the insertion hole 511. Further, the three guide pieces 513 are arranged one by one between the three support pieces 512 so as to surround the insertion hole 511 (see FIGS. 6A and 6C). It should be noted that each of the three support pieces 512 and the three guide pieces 513 is configured to incline toward the plate material 510 along the thickness direction X3 of the plate material 510 as it approaches the insertion hole 511 (). 6B and 6D).

これら２つの第１端子部材５１はそれぞれ、基板２２１に設けられている２つの入力端子部２２２と一対一に対応して電気的に接続されている。２つの入力端子部２２２はそれぞれ、基板２２１の表面（下面）において、基板２２１を厚み方向（上下方向）に貫通する貫通孔２２１０の周囲に形成されているランドで構成されている（図５参照）。２つの入力端子部２２２はそれぞれ、基板２２１の表面（下面）に形成されている導体を介して複数のＬＥＤ２２０と電気的に接続されている。そして、２つの第１端子部材５１はそれぞれ、２つの入力端子部２２２と一対一に対応し、各第１端子部材５１の板材５１０が、対応する入力端子部２２２とはんだ接合されることが好ましい。各第１端子部材５１は、３つの支持片５１２及び３つの案内片５１３を、対応する入力端子部２２２の貫通孔２２１０に挿通した状態で、対応する入力端子部２２２と電気的に接続される（図９参照）。 Each of these two first terminal members 51 is electrically connected to the two input terminal portions 222 provided on the substrate 221 in a one-to-one correspondence. Each of the two input terminal portions 222 is composed of lands formed around a through hole 2210 penetrating the substrate 221 in the thickness direction (vertical direction) on the surface (lower surface) of the substrate 221 (see FIG. 5). ). Each of the two input terminal portions 222 is electrically connected to a plurality of LEDs 220 via a conductor formed on the surface (lower surface) of the substrate 221. It is preferable that the two first terminal members 51 each have a one-to-one correspondence with the two input terminal portions 222, and the plate member 510 of each first terminal member 51 is solder-bonded to the corresponding input terminal portion 222. .. Each first terminal member 51 is electrically connected to the corresponding input terminal portion 222 with the three support pieces 512 and the three guide pieces 513 inserted through the through holes 2210 of the corresponding input terminal portion 222. (See FIG. 9).

２つの第２端子部材５２は、互いに同一の形状及び同一の寸法に形成されている。したがって、以下では、１つの第２端子部材５２について説明する。ただし、以下の説明では、図７及び図８において、第２端子部材５２の上下、左右、前後の各方向を規定する。 The two second terminal members 52 are formed to have the same shape and the same dimensions as each other. Therefore, one second terminal member 52 will be described below. However, in the following description, in FIGS. 7 and 8, each direction of the second terminal member 52 up / down, left / right, and front / back is defined.

第２端子部材５２は、図７及び図８に示すように、第１ばね片５２０Ａ、第２ばね片５２０Ｂ、第１主片５２１Ａ、第２主片５２１Ｂ、接続片５２２、撓み片５２３、端子片５２４及び３つの引掛爪５２５を有している。第１主片５２１Ａ及び第２主片５２１Ｂはそれぞれ、矩形板状に形成されている。接続片５２２は、矩形板状に形成されている。接続片５２２は、前後方向の両端で第１主片５２１Ａ及び第２主片５２１Ｂとそれぞれ連結されている。つまり、第１主片５２１Ａと第２主片５２１Ｂは、前後方向に向き合うようにして、接続片５２２を介して機械的に接続されている。第１ばね片５２０Ａは、矩形板状に形成され、第１主片５２１Ａの下端から下向きに突出している。なお、第１ばね片５２０Ａは、左右方向から見てＵ字状に湾曲している。第２ばね片５２０Ｂは、矩形板状に形成され、第２主片５２１Ｂの下端から下向きに突出している。なお、第２ばね片５２０Ｂは、左右方向から見てＵ字状に湾曲している。つまり、第１ばね片５２０Ａと第２ばね片５２０Ｂは、先端に向かって互いの距離を狭くするように形成されている。撓み片５２３は、幅の狭い矩形板状に形成されている。撓み片５２３は、第２主片５２１Ｂの上端から前後方向に沿って第１主片５２１Ａに近付く向きに突出している。端子片５２４は、細長い矩形板状に形成されている。端子片５２４は、撓み片５２３の先端から上向きに突出している。３つの引掛爪５２５はそれぞれ、第１主片５２１Ａ、第２主片５２１Ｂ及び接続片５２２の中央に設けられている。３つの引掛爪５２５はそれぞれ、上端を外側に向けるようにして切り起こされている。第１ばね片５２０Ａ、第２ばね片５２０Ｂ、第１主片５２１Ａ、第２主片５２１Ｂ、接続片５２２、撓み片５２３、端子片５２４及び３つの引掛爪５２５は、銅又は銅合金などの金属板が加工されることで一体に形成されることが好ましい。 As shown in FIGS. 7 and 8, the second terminal member 52 includes a first spring piece 520A, a second spring piece 520B, a first main piece 521A, a second main piece 521B, a connection piece 522, a bending piece 523, and a terminal. It has a piece 524 and three hooking claws 525. The first main piece 521A and the second main piece 521B are each formed in the shape of a rectangular plate. The connection piece 522 is formed in the shape of a rectangular plate. The connection piece 522 is connected to the first main piece 521A and the second main piece 521B at both ends in the front-rear direction, respectively. That is, the first main piece 521A and the second main piece 521B are mechanically connected via the connection piece 522 so as to face each other in the front-rear direction. The first spring piece 520A is formed in a rectangular plate shape and projects downward from the lower end of the first main piece 521A. The first spring piece 520A is curved in a U shape when viewed from the left-right direction. The second spring piece 520B is formed in a rectangular plate shape and projects downward from the lower end of the second main piece 521B. The second spring piece 520B is curved in a U shape when viewed from the left-right direction. That is, the first spring piece 520A and the second spring piece 520B are formed so as to reduce the distance from each other toward the tip. The flexible piece 523 is formed in the shape of a rectangular plate having a narrow width. The bending piece 523 projects from the upper end of the second main piece 521B in a direction approaching the first main piece 521A along the front-rear direction. The terminal piece 524 is formed in the shape of an elongated rectangular plate. The terminal piece 524 projects upward from the tip of the flexible piece 523. The three hook claws 525 are provided in the center of the first main piece 521A, the second main piece 521B, and the connection piece 522, respectively. Each of the three hooking claws 525 is cut and raised so that the upper end faces outward. The first spring piece 520A, the second spring piece 520B, the first main piece 521A, the second main piece 521B, the connection piece 522, the bending piece 523, the terminal piece 524, and the three hooking claws 525 are made of a metal such as copper or a copper alloy. It is preferable that the plates are integrally formed by processing.

これら２つの第２端子部材５２はそれぞれ、電源装置４のプリント配線板４０に設けられている２つの出力端子部４０５と一対一に対応して電気的に接続されている。２つの出力端子部４０５はそれぞれランドで構成されている。各ランドは、プリント配線板４０の裏面（上面）において、プリント配線板４０を厚み方向（上下方向）に貫通する２つのスルーホール４３の周囲に形成されている（図８参照）。各第２端子部材５２の端子片５２４は、２つの出力端子部４０５のうちで一対一に対応する出力端子部４０５のスルーホール４３に挿通される。そして、各第２端子部材５２の端子片５２４は、プリント配線板４０の裏面において出力端子部４０５にはんだ接合される。このようにして、２つの第２端子部材５２は、電源装置４のプリント配線板４０に設けられている２つの出力端子部４０５と一対一に対応して電気的に接続される。 Each of these two second terminal members 52 is electrically connected to the two output terminal portions 405 provided on the printed wiring board 40 of the power supply device 4 in a one-to-one correspondence. Each of the two output terminal portions 405 is composed of a land. Each land is formed on the back surface (upper surface) of the printed wiring board 40 around two through holes 43 penetrating the printed wiring board 40 in the thickness direction (vertical direction) (see FIG. 8). The terminal piece 524 of each second terminal member 52 is inserted into the through hole 43 of the output terminal portion 405 corresponding to one-to-one among the two output terminal portions 405. Then, the terminal piece 524 of each second terminal member 52 is solder-bonded to the output terminal portion 405 on the back surface of the printed wiring board 40. In this way, the two second terminal members 52 are electrically connected one-to-one with the two output terminal portions 405 provided on the printed wiring board 40 of the power supply device 4.

ここで、２つの第２端子部材５２はそれぞれ、電気絶縁性を有するホルダ５３に保持される。ホルダ５３は、図７に示すように、直方体状の合成樹脂成形体で構成されている。ホルダ５３は、２つの第２端子部材５２を電気的に絶縁し、かつ、機械的に保持する。ホルダ５３は、２つの収容部５３０を有している（図７参照）。２つの収容部５３０はそれぞれ、２つの第２端子部材５２のうちの一対一に対応する第２端子部材５２を収容している（図８参照）。なお、２つの収容部５３０のそれぞれの上面が開口している。そして、２つの第２端子部材５２の各々の端子片５２４が、ホルダ５３の上面の開口から突出している（図８参照）。ホルダ５３の下面に、２つの差込口５３１が開口している（図５及び図８参照）。２つの差込口５３１のそれぞれは、２つの収容部５３０のうちの対応する収容部５３０と繋がっている（図８参照）。２つの差込口５３１の内側面は、収容部５３０に向かって傾斜する傾斜面を有している。２つの第２端子部材５２はそれぞれ、３つの引掛爪５２５のそれぞれの先端を収容部５３０の内壁面に引っ掛けることで収容部５３０に対して抜け止めされている（図８参照）。ただし、対応する収容部５３０に収容されている第２端子部材５２の第１ばね片５２０Ａ及び第２ばね片５２０Ｂの一部分（下端部分）が、対応する差込口５３１内に進出している（図８参照）。 Here, each of the two second terminal members 52 is held by a holder 53 having electrical insulation. As shown in FIG. 7, the holder 53 is made of a rectangular parallelepiped synthetic resin molded body. The holder 53 electrically insulates the two second terminal members 52 and mechanically holds them. The holder 53 has two accommodating portions 530 (see FIG. 7). Each of the two accommodating portions 530 accommodates a second terminal member 52 corresponding to one-to-one among the two second terminal members 52 (see FIG. 8). The upper surface of each of the two accommodating portions 530 is open. Then, each terminal piece 524 of the two second terminal members 52 protrudes from the opening on the upper surface of the holder 53 (see FIG. 8). Two insertion ports 531 are opened on the lower surface of the holder 53 (see FIGS. 5 and 8). Each of the two outlets 531 is connected to the corresponding accommodating portion 530 of the two accommodating portions 530 (see FIG. 8). The inner surface of the two outlets 531 has an inclined surface inclined toward the accommodating portion 530. Each of the two second terminal members 52 is secured to the accommodating portion 530 by hooking the tips of the three hooking claws 525 on the inner wall surface of the accommodating portion 530 (see FIG. 8). However, a part (lower end portion) of the first spring piece 520A and the second spring piece 520B of the second terminal member 52 accommodated in the corresponding accommodating portion 530 has advanced into the corresponding insertion port 531 (the lower end portion). See FIG. 8).

ところで、ホルダ５３は、図７及び図８に示すように、一対の固定部５３２を有する。一対の固定部５３２は、柱状に形成され、ホルダ５３の上面における左右両端から上向きに突出している。一対の固定部５３２は、プリント配線板４０に設けられている２つの固定孔４４のそれぞれに１つずつ圧入されている。つまり、ホルダ５３は、一対の固定部５３２がプリント配線板４０の２つの固定孔４４に圧入されることでプリント配線板４０に固定されている（図８参照）。 By the way, the holder 53 has a pair of fixing portions 532 as shown in FIGS. 7 and 8. The pair of fixing portions 532 are formed in a columnar shape and project upward from both left and right ends on the upper surface of the holder 53. One pair of fixing portions 532 is press-fitted into each of the two fixing holes 44 provided in the printed wiring board 40. That is, the holder 53 is fixed to the printed wiring board 40 by pressing the pair of fixing portions 532 into the two fixing holes 44 of the printed wiring board 40 (see FIG. 8).

次に、光源ユニット２の組立工程を説明する。ただし、２つの第１端子部材５１のそれぞれは、基板２２１の２つの入力端子部２２２のうちの対応する入力端子部２２２とはんだ接合によって電気的に接続されている。同じく、２つの第２端子部材５２のそれぞれは、プリント配線板４０の２つの出力端子部４０５のうちの対応する出力端子部４０５とはんだ接合によって電気的に接続されている。さらに、２つの第２端子部材５２をそれぞれ保持したホルダ５３が、プリント配線板４０に機械的に固定されている。 Next, the assembly process of the light source unit 2 will be described. However, each of the two first terminal members 51 is electrically connected to the corresponding input terminal portion 222 of the two input terminal portions 222 of the substrate 221 by solder bonding. Similarly, each of the two second terminal members 52 is electrically connected to the corresponding output terminal portion 405 of the two output terminal portions 405 of the printed wiring board 40 by solder bonding. Further, a holder 53 holding each of the two second terminal members 52 is mechanically fixed to the printed wiring board 40.

まず、組立作業を行う作業者は、ケース４２の開口面（下面）を取付部材２１の底板２１１で塞ぐように、電源装置４を取付部材２１の第２面（上面）に取り付ける。電源装置４が取付部材２１に取り付けられた状態では、底板２１１に設けられている貫通孔２１３とプリント配線板４０に実装されているホルダ５３が、プリント配線板４０の厚み方向（上下方向）から見て重なっている。 First, the worker who performs the assembly work attaches the power supply device 4 to the second surface (upper surface) of the attachment member 21 so that the opening surface (lower surface) of the case 42 is closed by the bottom plate 211 of the attachment member 21. In the state where the power supply device 4 is attached to the attachment member 21, the through hole 213 provided in the bottom plate 211 and the holder 53 mounted on the printed wiring board 40 are from the thickness direction (vertical direction) of the printed wiring board 40. Seeing and overlapping.

続いて、作業者は、ＬＥＤモジュール２２を取付部材２１の底板２１１の第１面（下面）に固定する。このとき、ＬＥＤモジュール２２の基板２２１に取り付けられている２つの第１端子部材５１はそれぞれ、基板２２１の厚み方向（上下方向）から見て、ホルダ５３の２つの差込口５３１のうちの対応する差込口５３１と重なるように配置される（図８参照）。つまり、貫通孔２１３は、底板２１１の第１面（下面）側において、ＬＥＤモジュール２２の基板２２１に塞がれている（図９参照）。したがって、本実施形態の光源ユニット２は、貫通孔２１３を塞ぐための部材（例えば、片面に接着剤が塗布されたテープなど）が不要となり、部品点数及び製造工程の削減によるコストダウンを図ることができる。 Subsequently, the operator fixes the LED module 22 to the first surface (lower surface) of the bottom plate 211 of the mounting member 21. At this time, the two first terminal members 51 attached to the board 221 of the LED module 22 correspond to each of the two insertion ports 531 of the holder 53 when viewed from the thickness direction (vertical direction) of the board 221. It is arranged so as to overlap with the insertion port 531 (see FIG. 8). That is, the through hole 213 is closed to the substrate 221 of the LED module 22 on the first surface (lower surface) side of the bottom plate 211 (see FIG. 9). Therefore, the light source unit 2 of the present embodiment does not require a member for closing the through hole 213 (for example, a tape coated with an adhesive on one side), and the cost can be reduced by reducing the number of parts and the manufacturing process. Can be done.

そして、作業者は、２つの導電体５０のそれぞれを、２つの第１端子部材５１のうちの対応する第１端子部材５１の挿通孔５１１に挿入する。このとき、挿通孔５１１を囲むように配置されている３つの支持片５１２と３つの案内片５１３の下面（傾斜面）により、導電体５０の上端部（第２端部５０１）が挿通孔５１１に案内される。そのため、作業者は、導電体５０を容易に挿通孔５１１に挿入することができる。ただし、３つの支持片５１２はそれぞれ、導電体５０に先端部分５１２０が接触することによって、導電体５０が挿入される向き（上向き）に撓む（弾性変形する）。 Then, the operator inserts each of the two conductors 50 into the insertion hole 511 of the corresponding first terminal member 51 of the two first terminal members 51. At this time, the upper end portion (second end portion 501) of the conductor 50 is formed by the insertion hole 511 due to the lower surfaces (inclined surfaces) of the three support pieces 512 and the three guide pieces 513 arranged so as to surround the insertion hole 511. Will be guided to. Therefore, the operator can easily insert the conductor 50 into the insertion hole 511. However, each of the three support pieces 512 bends (elastically deforms) in the direction (upward) in which the conductor 50 is inserted when the tip portion 5120 comes into contact with the conductor 50.

作業者が導電体５０を挿通孔５１１に挿入すると、導電体５０の上端部（第２端部５０１）がホルダ５３の差込口５３１を通過し、一対一に対応する第２端子部材５２の第１ばね片５２０Ａと第２ばね片５２０Ｂの間に差し込まれる。つまり、２つの導電体５０のそれぞれの第２端部５０１が第１ばね片５２０Ａと第２ばね片５２０Ｂに前後方向から挟まれることにより、各導電体５０が一対一に対応する第２端子部材５２と電気的に接続される（図８参照）。また、２つの導電体５０のそれぞれの第１端部５００が３つの支持片５１２に挟まれることにより、各導電体５０が一対一に対応する第１端子部材５１と電気的に接続される（図８参照）。その結果、ＬＥＤモジュール２２の２つの入力端子部２２２のそれぞれと、電源装置４（電源回路４９）の２つの出力端子部４０５のうちの対応する出力端子部４０５とが接続部材５によって電気的に接続される（図８参照）。 When the operator inserts the conductor 50 into the insertion hole 511, the upper end portion (second end portion 501) of the conductor 50 passes through the insertion port 531 of the holder 53, and the second terminal member 52 having a one-to-one correspondence. It is inserted between the first spring piece 520A and the second spring piece 520B. That is, the second end portion 501 of each of the two conductors 50 is sandwiched between the first spring piece 520A and the second spring piece 520B from the front-rear direction, so that each conductor 50 has a one-to-one correspondence with the second terminal member. It is electrically connected to 52 (see FIG. 8). Further, by sandwiching the first end portion 500 of each of the two conductors 50 between the three support pieces 512, each conductor 50 is electrically connected to the first terminal member 51 corresponding to one-to-one (1). See FIG. 8). As a result, each of the two input terminal portions 222 of the LED module 22 and the corresponding output terminal portion 405 of the two output terminal portions 405 of the power supply device 4 (power supply circuit 49) are electrically connected by the connecting member 5. Connected (see Figure 8).

そして最後に、作業者は、取付部材２１の開口側を上向きにした状態でカバー２３を取付部材２１に組み付ける。このとき、カバー２３の一対の突壁部２３３に設けられた一対の突起部２３３Ａが、取付部材２１の一対の側板２１２の一対の傾斜部２１２Ａに引っ掛かり、カバー２３が取付部材２１に取り付けられる。以上のような組立工程で光源ユニット２が組み立てられる。 Finally, the operator assembles the cover 23 to the mounting member 21 with the opening side of the mounting member 21 facing upward. At this time, the pair of protrusions 233A provided on the pair of protruding wall portions 233 of the cover 23 are caught by the pair of inclined portions 212A of the pair of side plates 212 of the mounting member 21, and the cover 23 is attached to the mounting member 21. The light source unit 2 is assembled by the above assembly process.

上述のように光源ユニット２では、２つの導電体５０がそれぞれ、対応する第１端子部材５１の挿通孔５１１に挿通されるだけで、電源装置４とＬＥＤモジュール２２との電気的な接続作業が完了するように構成されている。そのため、光源ユニット２は、特許文献１記載の発光ユニットのような従来例と比較して、（光源ユニット２の）製造工程の簡略化を図ることができる。 As described above, in the light source unit 2, the two conductors 50 are only inserted into the insertion holes 511 of the corresponding first terminal member 51, respectively, and the electric connection work between the power supply device 4 and the LED module 22 is performed. It is configured to complete. Therefore, the light source unit 2 can simplify the manufacturing process (of the light source unit 2) as compared with the conventional example such as the light emitting unit described in Patent Document 1.

また、光源ユニット２において、２つの第１端子部材５１のそれぞれは、板材５１０に設けられた３つの支持片５１２を有している。これら３つの支持片５１２のそれぞれは、挿通孔５１１を囲むように板材５１０と一体に形成されている。また、３つの支持片５１２はそれぞれ、挿通孔５１１に挿通された導電体５０（の第１端部５００）に押されて弾性変形する。さらに、３つの支持片５１２はそれぞれ、導電体５０の第１端部５００に押されている先端部分５１２０で導電体５０と導通している。つまり、光源ユニット２は、板材５１０の挿通孔５１１に対して導電体５０が傾いていたとしても、複数（例えば、３つ）の支持片５１２の弾性力により、支持片５１２のそれぞれの先端部分５１２０を導電体５０に接触させることができる。その結果、光源ユニット２は、互いに一対一に対応する２つの第１端子部材５１と２つの第２端子部材５２との位置ずれの許容範囲を拡げることができる。しかも、２つの第１端子部材５１のそれぞれの板材５１０と、２つの入力端子部２２２のそれぞれとを接合しているはんだに加わる応力が、導電体５０の傾きの影響を受け難い。したがって、第１端子部材５１と導電体５０とがはんだ接合などによって固定される場合と比較して、第１端子部材５１（の板材５１０）と入力端子部２２２を接合しているはんだにクラックが生じ難い。 Further, in the light source unit 2, each of the two first terminal members 51 has three support pieces 512 provided on the plate member 510. Each of these three support pieces 512 is integrally formed with the plate member 510 so as to surround the insertion hole 511. Further, each of the three support pieces 512 is elastically deformed by being pushed by the conductor 50 (first end portion 500) inserted through the insertion hole 511. Further, each of the three support pieces 512 is conducting with the conductor 50 at the tip portion 5120 pushed by the first end portion 500 of the conductor 50. That is, even if the conductor 50 is tilted with respect to the insertion hole 511 of the plate material 510, the light source unit 2 has the tip portions of the support pieces 512 due to the elastic force of the plurality of (for example, three) support pieces 512. The 5120 can be brought into contact with the conductor 50. As a result, the light source unit 2 can expand the allowable range of the positional deviation between the two first terminal members 51 and the two second terminal members 52, which have a one-to-one correspondence with each other. Moreover, the stress applied to the solder joining each of the plate members 510 of the two first terminal members 51 and each of the two input terminal portions 222 is not easily affected by the inclination of the conductor 50. Therefore, as compared with the case where the first terminal member 51 and the conductor 50 are fixed by solder joining or the like, cracks are formed in the solder joining the first terminal member 51 (plate material 510) and the input terminal portion 222. Hard to occur.

ところで、ＬＥＤモジュール２２の基板２２１は、点灯中のＬＥＤ２２０から放射される熱及び電源回路４９から放射される熱によって膨張する。そして、基板２２１（絶縁基板）を形成している合成樹脂（例えば、エポキシ樹脂）の線膨張係数は、取付部材２１を形成している金属（例えば、亜鉛鋼板又はステンレス板など）の線膨張係数よりも数十倍以上も大きい。基板２２１に設けられている複数の溝部２２１１のそれぞれは、基板２２１の長手方向に沿った長さを引掛部２１６の根元部分の長手方向に沿った長さよりも大きくするように構成されている。つまり、基板２２１は、基板２２１の長手方向に沿った溝部２２１１と引掛部２１６との長さの差分だけ、取付部材２１に対して長手方向に沿って伸縮可能である。ゆえに、取付部材２１の熱膨張量よりも基板２２１の熱膨張量が大きくても、基板２２１が取付部材２１に対して長手方向に伸長することで取付部材２１の引掛部２１６から基板２２１に加わる応力を低減することができる。 By the way, the substrate 221 of the LED module 22 expands due to the heat radiated from the LED 220 being lit and the heat radiated from the power supply circuit 49. The linear expansion coefficient of the synthetic resin (for example, epoxy resin) forming the substrate 221 (insulating substrate) is the linear expansion coefficient of the metal (for example, zinc steel plate or stainless steel plate) forming the mounting member 21. Dozens of times larger than. Each of the plurality of groove portions 2211 provided on the substrate 221 is configured so that the length along the longitudinal direction of the substrate 221 is larger than the length along the longitudinal direction of the root portion of the hook portion 216. That is, the substrate 221 can be expanded and contracted along the longitudinal direction with respect to the mounting member 21 by the difference in length between the groove portion 2211 along the longitudinal direction of the substrate 221 and the hook portion 216. Therefore, even if the thermal expansion amount of the substrate 221 is larger than the thermal expansion amount of the mounting member 21, the substrate 221 extends in the longitudinal direction with respect to the mounting member 21 and joins the board 221 from the hooking portion 216 of the mounting member 21. The stress can be reduced.

しかしながら、基板２２１が熱膨張して取付部材２１に対して長手方向に伸長すると、基板２２１に固定されている第１端子部材５１と、ケース４２を介して取付部材２１に間接的に固定されている第２端子部材５２の相対的な位置がずれてしまう。接続部材５は、上述したように、互いに一対一に対応する２つの第１端子部材５１と２つの第２端子部材５２との位置がある程度ずれても、導電体５０を介した電気的な接続を維持することができる。ただし、取付部材２１に対する基板２２１の伸長量（膨張量）が、接続部材５における第１端子部材５１と第２端子部材５２の位置ずれの許容範囲を超えてしまうと、導電体５０を介した電気的な接続を維持できない可能性がある。 However, when the substrate 221 thermally expands and extends in the longitudinal direction with respect to the mounting member 21, the substrate 221 is indirectly fixed to the mounting member 21 via the case 42 and the first terminal member 51 fixed to the substrate 221. The relative position of the second terminal member 52 is displaced. As described above, the connecting member 5 is electrically connected via the conductor 50 even if the positions of the two first terminal members 51 and the two second terminal members 52, which have a one-to-one correspondence with each other, are displaced to some extent. Can be maintained. However, if the amount of extension (expansion) of the substrate 221 with respect to the mounting member 21 exceeds the allowable range of the positional deviation between the first terminal member 51 and the second terminal member 52 in the connecting member 5, the conductor 50 is used. It may not be possible to maintain an electrical connection.

一方、電源装置４のプリント配線板４０も点灯中のＬＥＤ２２０から放射される熱及び電源回路４９から放射される熱によって膨張する。ただし、プリント配線板４０を構成している絶縁基板と基板２２１を構成している絶縁基板とは、同系の材質（例えば、エポキシ樹脂及びフェノール樹脂のような合成樹脂）によって形成されている。つまり、合成樹脂と金属のように異系の材質で形成されている基板２２１及びプリント配線板４０と取付部材２１の線膨張係数の差に比べて、同系の材質で形成されている基板２２１とプリント配線板４０の線膨張係数の差は非常に小さい。 On the other hand, the printed wiring board 40 of the power supply device 4 also expands due to the heat radiated from the LED 220 being lit and the heat radiated from the power supply circuit 49. However, the insulating substrate constituting the printed wiring board 40 and the insulating substrate constituting the substrate 221 are formed of similar materials (for example, synthetic resin such as epoxy resin and phenol resin). That is, the substrate 221 made of a different material such as synthetic resin and metal and the substrate 221 made of the same material as compared with the difference in the linear expansion coefficient between the printed wiring board 40 and the mounting member 21. The difference in the linear expansion coefficient of the printed wiring board 40 is very small.

また、基板２２１及びプリント配線板４０はいずれも、それぞれの取付部材２１に対する固定位置から離れるほど膨張量（伸長量）が大きくなる。さらに、接続部材５から見た基板２２１の固定位置及びプリント配線板４０の固定位置が取付部材２１の長手方向において異なる側にある場合、入力端子部２２２と出力端子部４０５の取付部材２１の長手方向における位置ずれが大きくなる。 Further, the expansion amount (extension amount) of both the substrate 221 and the printed wiring board 40 increases as the distance from the fixed position with respect to the respective mounting members 21 increases. Further, when the fixed position of the board 221 and the fixed position of the printed wiring board 40 as seen from the connecting member 5 are on different sides in the longitudinal direction of the mounting member 21, the length of the mounting member 21 of the input terminal portion 222 and the output terminal portion 405 is further extended. The misalignment in the direction becomes large.

これに対して本実施形態の光源ユニット２では、取付部材２１に対する基板２２１の固定位置Ｆ１と取付部材２１に対するプリント配線板４０の固定位置Ｆ２が、接続部材５から見て取付部材２１の長手方向の同じ側にある（図９参照）。つまり、基板２２１とプリント配線板４０とは、熱による膨張・収縮時に取付部材２１の長手方向において同じ向きに膨張及び収縮する。ここで、固定位置Ｆ１と導電体５０の最短距離Ｚ１と固定位置Ｆ２と導電体５０の最短距離Ｚ２との差をＺ３（＝｜Ｚ１－Ｚ２｜）と定義する。光源ユニット２では、基板２２１とプリント配線板４０が同じ向きに膨張・収縮するので、基板２２１及びプリント配線板４０の膨張・収縮による差Ｚ３の変化量を減らすことができる。ゆえに、光源ユニット２は、入力端子部２２２と出力端子部４０５の取付部材２１の長手方向における位置ずれの低減を図ることができる。その結果、光源ユニット２は、電源装置４からＬＥＤモジュール２２への配線（入力端子部２２２、出力端子部４０５並びに接続部材５）にかかる応力の低減を図ることができる。 On the other hand, in the light source unit 2 of the present embodiment, the fixed position F1 of the substrate 221 with respect to the mounting member 21 and the fixing position F2 of the printed wiring board 40 with respect to the mounting member 21 are in the longitudinal direction of the mounting member 21 when viewed from the connecting member 5. On the same side of (see Figure 9). That is, the substrate 221 and the printed wiring board 40 expand and contract in the same direction in the longitudinal direction of the mounting member 21 when expanded and contracted by heat. Here, the difference between the shortest distance Z1 between the fixed position F1 and the conductor 50 and the shortest distance Z2 between the fixed position F2 and the conductor 50 is defined as Z3 (= | Z1-Z2 |). In the light source unit 2, since the substrate 221 and the printed wiring board 40 expand and contract in the same direction, the amount of change in the difference Z3 due to the expansion and contraction of the substrate 221 and the printed wiring board 40 can be reduced. Therefore, the light source unit 2 can reduce the positional deviation in the longitudinal direction of the mounting member 21 of the input terminal portion 222 and the output terminal portion 405. As a result, the light source unit 2 can reduce the stress applied to the wiring (input terminal portion 222, output terminal portion 405, and connecting member 5) from the power supply device 4 to the LED module 22.

次に、照明器具１の施工手順を説明する。まず、図１に示すように、施工者は、天井裏に先行配線された電源線３０と信号線を器具本体１０の孔１１１Ａに挿通し、さらに室内側に露出する各吊りボルト２００を、対応する孔１１１Ｂに通す。その後、施工者は、各吊りボルト２００にナット３００をねじ込んで器具本体１０を天井１００に固定する。その後、施工者は、電源線３０を端子台２５に接続し、さらに端子台２５のプラグコネクタ２５１を電源装置４の電源入力部４００（図４参照）に差込接続する。続いて、施工者は、信号線を電源装置４の信号入力部４１０（図４参照）に電気的に接続する。 Next, the construction procedure of the lighting fixture 1 will be described. First, as shown in FIG. 1, the builder inserts the power supply line 30 and the signal line pre-wired in the ceiling into the hole 111A of the instrument main body 10, and further corresponds to each suspension bolt 200 exposed to the indoor side. Pass through the hole 111B. After that, the builder screwes the nut 300 into each hanging bolt 200 to fix the instrument main body 10 to the ceiling 100. After that, the installer connects the power supply line 30 to the terminal block 25, and further connects the plug connector 251 of the terminal block 25 by inserting it into the power input unit 400 (see FIG. 4) of the power supply device 4. Subsequently, the builder electrically connects the signal line to the signal input unit 410 (see FIG. 4) of the power supply device 4.

そして、施工者は、器具本体１０の一方の側板１１２に設けられた一対の挿通孔１１２Ａにそれぞれ一対の引掛金具２１４の先端を引っ掛けた後、一対の引掛ばね２１５を器具本体１０の他方の側板１１２に設けられた引掛部１１２０に引っ掛ける。そして、施工者が、引掛金具２１４を支点として光源ユニット２を持ち上げるように回転させると、引掛ばね２１５が引掛部１１２０に引っ掛かったままで元の状態に戻ることにより、引掛ばね２１５のばね力で光源ユニット２が器具本体１０に保持される。以上のような手順で照明器具１が天井１００に施工される。 Then, the installer hooks the tips of the pair of hook metal fittings 214 into the pair of insertion holes 112A provided in one side plate 112 of the instrument body 10, and then attaches the pair of hook springs 215 to the other side plate of the instrument body 10. It is hooked on the hooking portion 1120 provided on the 112. Then, when the installer rotates the light source unit 2 so as to lift it with the hook metal fitting 214 as a fulcrum, the hook spring 215 returns to the original state while being hooked on the hook portion 1120, so that the light source is generated by the spring force of the hook spring 215. The unit 2 is held by the instrument body 10. The lighting fixture 1 is installed on the ceiling 100 by the above procedure.

ここで、光源ユニット２では、基板２２１の固定位置Ｆ１及びプリント配線板４０の固定位置Ｆ２が、プリント配線板４０の長手方向の中央（中心線α１）に対して接続部材５と反対側にある（図９参照）。光源ユニット２では、基板２２１を固定する部材（引掛部２１６Ａ）及びプリント配線板４０を固定する部材（ねじ４００２）と接続部材５との絶縁距離が確保し易くなる。 Here, in the light source unit 2, the fixed position F1 of the substrate 221 and the fixed position F2 of the printed wiring board 40 are on the opposite side of the connecting member 5 with respect to the center (center line α1) in the longitudinal direction of the printed wiring board 40. (See FIG. 9). In the light source unit 2, it becomes easy to secure an insulating distance between the member (hooking portion 216A) for fixing the substrate 221 and the member (screw 4002) for fixing the printed wiring board 40 and the connecting member 5.

また、光源ユニット２では、基板２２１が取付部材２１に対して固定されている範囲Ｇ１の少なくとも一部が、取付部材２１の短手方向（前後方向）から見て、プリント配線板４０が取付部材２１に対して固定されている範囲Ｇ２と重なっている（図１０参照）。なお、基板２２１が取付部材２１に対して固定されている範囲Ｇ１とは、引掛部２１６Ａの基板２２１の下面と対向している範囲である。一方、プリント配線板４０が取付部材２１に対して固定されている範囲Ｇ２とは、ねじ４００２の頭部がプリント配線板４０の下面と当たっている範囲である。このように範囲Ｇ１の少なくとも一部が範囲Ｇ２と重なっていれば、基板２２１及びプリント配線板４０の膨張・収縮による差Ｚ３の変化量を更に減らすことができる。 Further, in the light source unit 2, at least a part of the range G1 in which the board 221 is fixed to the mounting member 21 is the mounting member of the printed wiring board 40 when viewed from the lateral direction (front-back direction) of the mounting member 21. It overlaps with the range G2 fixed with respect to 21 (see FIG. 10). The range G1 in which the substrate 221 is fixed to the mounting member 21 is a range facing the lower surface of the substrate 221 of the hooking portion 216A. On the other hand, the range G2 in which the printed wiring board 40 is fixed to the mounting member 21 is the range in which the head of the screw 4002 is in contact with the lower surface of the printed wiring board 40. When at least a part of the range G1 overlaps the range G2 in this way, the amount of change in the difference Z3 due to the expansion / contraction of the substrate 221 and the printed wiring board 40 can be further reduced.

しかも、光源ユニット２では、基板２２１及びプリント配線板４０が、合成樹脂製の絶縁基板で形成されている。そのため、基板２２１とプリント配線板４０のそれぞれの線膨張係数の差が小さくなるから、基板２２１及びプリント配線板４０の膨張・収縮による差Ｚ３の変化量を更に減らすことができる。 Moreover, in the light source unit 2, the substrate 221 and the printed wiring board 40 are formed of an insulating substrate made of synthetic resin. Therefore, since the difference between the linear expansion coefficients of the substrate 221 and the printed wiring board 40 becomes small, the amount of change in the difference Z3 due to the expansion / contraction of the substrate 221 and the printed wiring board 40 can be further reduced.

ところで、光源ユニット２では、接続部材５が、棒状に形成されている導電体５０と、第１端子部材５１と、第２端子部材５２とを有している。第１端子部材５１は、導電性を有し、かつ、厚み方向に貫通する挿通孔５１１が設けられている板材を有している。板材は、基板２２１の厚み方向から見て、入力端子部２２２を貫通する孔と挿通孔５１１を重ねるようにして、入力端子部２２２と電気的に接続される。第１端子部材５１は、導電体５０の第１端部５００を、入力端子部２２２と電気的かつ機械的に接続するように構成されている。第２端子部材５２は、貫通孔２１３を通して導電体５０の第２端部５０１を、出力端子部４０５と電気的かつ機械的に接続するように構成されている。光源ユニット２では、接続部材５が上述のように構成されているので、接続部材５によって基板２２１の入力端子部２２２とプリント配線板４０の出力端子部４０５を電気的に接続する作業の作業性の向上を図ることができる。 By the way, in the light source unit 2, the connecting member 5 has a conductor 50 formed in a rod shape, a first terminal member 51, and a second terminal member 52. The first terminal member 51 has a plate material that is conductive and is provided with an insertion hole 511 that penetrates in the thickness direction. The plate material is electrically connected to the input terminal portion 222 so as to overlap the hole penetrating the input terminal portion 222 and the insertion hole 511 when viewed from the thickness direction of the substrate 221. The first terminal member 51 is configured to electrically and mechanically connect the first end portion 500 of the conductor 50 to the input terminal portion 222. The second terminal member 52 is configured to electrically and mechanically connect the second end portion 501 of the conductor 50 to the output terminal portion 405 through the through hole 213. In the light source unit 2, since the connecting member 5 is configured as described above, the workability of the work of electrically connecting the input terminal portion 222 of the substrate 221 and the output terminal portion 405 of the printed wiring board 40 by the connecting member 5. Can be improved.

ここで、プリント配線板４０の固定位置Ｆ２（ねじ止め部４２４）と出力端子部４０５（端子片５２４）の位置は、取付部材２１の短手方向（前後方向）においてずれていても構わない（図１１参照）。言い換えると、プリント配線板４０の固定位置Ｆ２と出力端子部４０５（端子片５２４）の位置は、取付部材２１の長手方向に沿って直線状に並んでいる必要はない。 Here, the positions of the fixed position F2 (screwed portion 424) and the output terminal portion 405 (terminal piece 524) of the printed wiring board 40 may be displaced in the lateral direction (front-back direction) of the mounting member 21 (the position may be deviated). See FIG. 11). In other words, the positions of the fixed position F2 of the printed wiring board 40 and the position of the output terminal portion 405 (terminal piece 524) do not have to be aligned linearly along the longitudinal direction of the mounting member 21.

また、図１２に示すように、取付部材２１に対して基板２２１が固定されている範囲Ｇ１が、取付部材２１の短手方向（前後方向）から見て、基板２２１の入力端子部２２２（第１端子部材５１）と重なっていても構わない。光源ユニット２では、取付部材２１に対して基板２２１が固定されている範囲Ｇ１が基板２２１の入力端子部２２２（第１端子部材５１）と重なれば、基板２２１の膨張・収縮による入力端子部２２２の位置の変化を抑制することができる。 Further, as shown in FIG. 12, the range G1 in which the board 221 is fixed to the mounting member 21 is the input terminal portion 222 (the first) of the board 221 when viewed from the lateral direction (front-back direction) of the mounting member 21. It may overlap with the 1 terminal member 51). In the light source unit 2, if the range G1 in which the substrate 221 is fixed to the mounting member 21 overlaps with the input terminal portion 222 (first terminal member 51) of the substrate 221, the input terminal portion due to expansion / contraction of the substrate 221 The change in the position of 222 can be suppressed.

以上述べた実施形態から明らかなように、本発明の第１の態様に係る光源ユニット（２）は、固体発光素子（ＬＥＤ２２０）及び固体発光素子（ＬＥＤ２２０）と電気的に接続されている入力端子部（２２２）を有する長尺の基板（２２１）を備える。光源ユニット（２）は、固体発光素子（ＬＥＤ２２０）に電力を供給する電源回路（４９）を有する電源装置（４）を備える。光源ユニット（２）は、基板（２２１）及び電源装置（４）が取り付けられる取付部材（２１）と、電源回路（４９）と入力端子部（２２２）を電気的に接続する接続部材（５）とを備える。電源回路（４９）は、プリント配線板（４０）を有している。プリント配線板（４０）は、基板（２２１）と同系の材質によって長尺の板状に形成され、かつ、電源回路（４９）で生成される電力を出力する出力端子部（４０５）を有している。取付部材（２１）は、第１面と第１面の裏面となる第２面を有する長尺の板状に形成され、第１面に基板（２２１）が取り付けられ、第２面に電源装置（４）が取り付けられている。さらに、取付部材（２１）は、第１面から第２面に貫通する貫通孔（２１３）が設けられている。入力端子部（２２２）及び出力端子部（４０５）は、取付部材（２１）の厚み方向から見て貫通孔（２１３）と重なる位置に配置されている。接続部材（５）は、貫通孔（２１３）を通して入力端子部（２２２）と出力端子部（４０５）とを電気的に接続するように構成されている。取付部材（２１）に対する基板（２２１）の固定位置（Ｆ１）及び取付部材（２１）に対するプリント配線板（４０）の固定位置（Ｆ２）が、接続部材（５）から見て、取付部材（２１）の長手方向の同じ側である。 As is clear from the above-described embodiment, the light source unit (2) according to the first aspect of the present invention is an input terminal electrically connected to a solid-state light-emitting element (LED220) and a solid-state light-emitting element (LED220). A long substrate (221) having a portion (222) is provided. The light source unit (2) includes a power supply device (4) having a power supply circuit (49) for supplying electric power to the solid-state light emitting element (LED 220). The light source unit (2) is a connection member (5) that electrically connects a mounting member (21) to which a substrate (221) and a power supply device (4) are mounted, a power supply circuit (49), and an input terminal portion (222). And. The power supply circuit (49) has a printed wiring board (40). The printed wiring board (40) is formed in a long plate shape by a material similar to that of the substrate (221), and has an output terminal portion (405) for outputting the electric power generated by the power supply circuit (49). ing. The mounting member (21) is formed in the shape of a long plate having a first surface and a second surface as the back surface of the first surface, a substrate (221) is attached to the first surface, and a power supply device is mounted on the second surface. (4) is attached. Further, the mounting member (21) is provided with a through hole (213) penetrating from the first surface to the second surface. The input terminal portion (222) and the output terminal portion (405) are arranged at positions overlapping with the through hole (213) when viewed from the thickness direction of the mounting member (21). The connecting member (5) is configured to electrically connect the input terminal portion (222) and the output terminal portion (405) through the through hole (213). The fixed position (F1) of the substrate (221) with respect to the mounting member (21) and the fixing position (F2) of the printed wiring board (40) with respect to the mounting member (21) are the mounting member (21) as seen from the connecting member (5). ) On the same side in the longitudinal direction.

第１の態様に係る光源ユニット（２）では、基板（２２１）とプリント配線板（４０）が同じ向きに膨張・収縮するので、基板（２２１）及びプリント配線板（４０）の膨張・収縮による入力端子部（２２２）と出力端子部（４０５）の取付部材（２１）の長手方向における位置ずれの低減を図ることができる。その結果、光源ユニット（２）は、電源装置（４）から固体発光素子（ＬＥＤ２２０）への配線（入力端子部２２２、出力端子部４０５並びに接続部材５）にかかる応力の低減を図ることができる。 In the light source unit (2) according to the first aspect, the substrate (221) and the printed wiring board (40) expand and contract in the same direction, so that the substrate (221) and the printed wiring board (40) expand and contract. It is possible to reduce the positional deviation of the mounting member (21) of the input terminal portion (222) and the output terminal portion (405) in the longitudinal direction. As a result, the light source unit (2) can reduce the stress applied to the wiring (input terminal portion 222, output terminal portion 405, and connecting member 5) from the power supply device (4) to the solid-state light emitting element (LED 220). ..

第２の態様に係る光源ユニット（２）では、第１の態様において、基板（２２１）の固定位置（Ｆ１）及びプリント配線板（４０）の固定位置（Ｆ２）が、プリント配線板（４０）の長手方向の中央（中心線α１）に対して接続部材（５）と反対側にあることが好ましい。 In the light source unit (2) according to the second aspect, in the first aspect, the fixed position (F1) of the substrate (221) and the fixed position (F2) of the printed wiring board (40) are set to the printed wiring board (40). It is preferable that it is on the side opposite to the connecting member (5) with respect to the center (center line α1) in the longitudinal direction of the above.

第２の態様に係る光源ユニット（２）では、基板（２２１）を固定する部材（引掛部２１６Ａ）及びプリント配線板（４０）を固定する部材（ねじ４００２）と接続部材（５）との絶縁距離が確保し易くなる。 In the light source unit (2) according to the second aspect, the insulation between the member (hooking portion 216A) for fixing the substrate (221) and the member (screw 4002) for fixing the printed wiring board (40) and the connecting member (5). It becomes easier to secure the distance.

第３の態様に係る光源ユニット（２）では、第１又は第２の態様において、基板（２２１）が取付部材（２１）に対して固定されている範囲の少なくとも一部は、取付部材（２１）の短手方向から見て、プリント配線板（４０）が取付部材（２１）に対して固定されている範囲と重なっていることが好ましい。 In the light source unit (2) according to the third aspect, in the first or second aspect, at least a part of the range in which the substrate (221) is fixed to the mounting member (21) is the mounting member (21). ), It is preferable that the printed wiring board (40) overlaps the range fixed to the mounting member (21).

第３の態様に係る光源ユニット（２）では、基板（２２１）及びプリント配線板（４０）の膨張・収縮による差（Ｚ３）の変化量を減らし、配線（入力端子部２２２、出力端子部４０５並びに接続部材５）にかかる応力の更なる低減を図ることができる。 In the light source unit (2) according to the third aspect, the amount of change in the difference (Z3) due to expansion / contraction of the substrate (221) and the printed wiring board (40) is reduced, and the wiring (input terminal portion 222, output terminal portion 405) is reduced. In addition, the stress applied to the connecting member 5) can be further reduced.

第４の態様に係る光源ユニットでは、第１～第３のいずれかの態様において、基板（２２１）及びプリント配線板（４０）は、合成樹脂製の絶縁基板で形成されていることが好ましい。 In the light source unit according to the fourth aspect, in any one of the first to third aspects, it is preferable that the substrate (221) and the printed wiring board (40) are formed of an insulating substrate made of synthetic resin.

第４の態様に係る光源ユニット（２）では、基板（２２１）とプリント配線板（４０）のそれぞれの線膨張係数の差が小さくなる。その結果、光源ユニット（２）では、基板（２２１）及びプリント配線板（４０）の膨張・収縮による差（Ｚ３）の変化量を減らし、配線（入力端子部２２２、出力端子部４０５並びに接続部材５）にかかる応力の更なる低減を図ることができる。 In the light source unit (2) according to the fourth aspect, the difference between the linear expansion coefficients of the substrate (221) and the printed wiring board (40) becomes small. As a result, in the light source unit (2), the amount of change in the difference (Z3) due to expansion / contraction of the substrate (221) and the printed wiring board (40) is reduced, and the wiring (input terminal portion 222, output terminal portion 405, and connection member) is reduced. It is possible to further reduce the stress applied to 5).

第５の態様に係る光源ユニット（２）では、第１～４のいずれかの態様において、接続部材（５）は、棒状に形成されている導電体（５０）と、第１端子部材（５１）と、第２端子部材（５２）とを有することが好ましい。第１端子部材（５１）は、導電性を有し、かつ、厚み方向に貫通する挿通孔（５１１）が設けられている板材を有していることが好ましい。板材は、基板（２２１）の厚み方向から見て、入力端子部（２２２）を貫通する孔と挿通孔（５１１）を重ねるようにして、入力端子部（４）と電気的に接続されることが好ましい。第１端子部材（５１）は、導電体（５０）の第１端部（５００）を、入力端子部（２２２）と電気的かつ機械的に接続するように構成されることが好ましい。第２端子部材（５２）は、貫通孔（２１３）を通して導電体（５０）の第２端部（５０１）を、出力端子部（４０５）と電気的かつ機械的に接続するように構成されることが好ましい。 In the light source unit (2) according to the fifth aspect, in any one of the first to fourth aspects, the connecting member (5) is a rod-shaped conductor (50) and a first terminal member (51). ) And the second terminal member (52). It is preferable that the first terminal member (51) has a plate material having conductivity and having an insertion hole (511) penetrating in the thickness direction. The plate material is electrically connected to the input terminal portion (4) so as to overlap the insertion hole (511) with the hole penetrating the input terminal portion (222) when viewed from the thickness direction of the substrate (221). Is preferable. The first terminal member (51) is preferably configured to electrically and mechanically connect the first end portion (500) of the conductor (50) to the input terminal portion (222). The second terminal member (52) is configured to electrically and mechanically connect the second end portion (501) of the conductor (50) to the output terminal portion (405) through the through hole (213). Is preferable.

第５の態様に係る光源ユニット（２）では、接続部材（５）によって基板（２１１）の入力端子部（２２２）とプリント配線板（４０）の出力端子部（４０５）を電気的に接続する作業の作業性の向上を図ることができる。 In the light source unit (2) according to the fifth aspect, the input terminal portion (222) of the substrate (211) and the output terminal portion (405) of the printed wiring board (40) are electrically connected by the connection member (5). It is possible to improve the workability of the work.

第６の態様に係る照明器具（１）は、第１～第５のいずれかの態様の光源ユニット（２）と、光源ユニット（２）を支持する器具本体（１０）とを備えている。 The lighting fixture (1) according to the sixth aspect includes a light source unit (2) according to any one of the first to fifth aspects, and an appliance main body (10) that supports the light source unit (2).

第６の態様に係る照明器具（１）では、電源装置（４）から固体発光素子（ＬＥＤ２２０）への配線（入力端子部２２２、出力端子部４０５並びに接続部材５）にかかる応力の低減を図ることができる。 In the lighting fixture (1) according to the sixth aspect, the stress applied to the wiring (input terminal portion 222, output terminal portion 405, and connecting member 5) from the power supply device (4) to the solid-state light emitting element (LED 220) is reduced. be able to.

１ 照明器具
２ 光源ユニット
４ 電源装置
５ 接続部材
１０ 器具本体
２１ 取付部材
４０ プリント配線板
４９ 電源回路
５０ 導電体
５１ 第１端子部材
５２ 第２端子部材
２１３ 貫通孔
２１６Ａ 引掛部
２２０ ＬＥＤ（固体発光素子）
２２１ 基板
２２２ 入力端子部
４０５ 出力端子部
４０７ ねじ
５００ 第１端部
５０１ 第２端部
５１１ 挿通孔
Ｆ１ 固定位置
Ｆ２ 固定位置
α１ 中心線 1 Lighting equipment 2 Light source unit 4 Power supply 5 Connection member 10 Equipment body 21 Mounting member 40 Printed wiring board 49 Power supply circuit 50 Conductor 51 First terminal member 52 Second terminal member 213 Through hole 216A Hooking part 220 LED (solid light emitting element) )
221 Board 222 Input terminal 405 Output terminal 407 Screw 500 1st end 501 2nd end 511 Insertion hole F1 Fixed position F2 Fixed position α1 Center line

Claims (7)

固体発光素子及び前記固体発光素子と電気的に接続されている入力端子部を有する長尺の基板と、
前記固体発光素子に電力を供給する電源回路を有する電源装置と、
前記基板及び前記電源装置が取り付けられる取付部材と、
前記電源回路と前記入力端子部を電気的に接続する接続部材と
を備え、
前記電源回路は、プリント配線板を有し、
前記プリント配線板は、前記基板と同系の材質によって長尺の板状に形成され、かつ、前記電源回路で生成される前記電力を出力する出力端子部を有し、
前記取付部材は、第１面と前記第１面の裏面となる第２面を有する長尺の板状に形成され、
前記第１面に前記基板が取り付けられ、前記第２面に前記電源装置が取り付けられ、
さらに、前記取付部材は、前記第１面から前記第２面に貫通する貫通孔が設けられており、
前記入力端子部及び前記出力端子部は、前記取付部材の厚み方向から見て前記貫通孔と重なる位置に配置されており、
前記接続部材は、前記貫通孔を通して前記入力端子部と前記出力端子部とを電気的に接続するように構成されており、
前記取付部材に対する前記基板の固定位置及び前記取付部材に対する前記プリント配線板の固定位置が、前記接続部材から見て、前記取付部材の長手方向の同じ側であり、
前記基板の固定位置及び前記プリント配線板の固定位置が、前記プリント配線板の長手方向の中央に対して前記接続部材と反対側にある
ことを特徴とする光源ユニット。 A long substrate having an input terminal portion electrically connected to the solid-state light-emitting element and the solid-state light-emitting element, and
A power supply device having a power supply circuit that supplies electric power to the solid-state light emitting element, and
The mounting member to which the board and the power supply device are mounted, and
A connection member for electrically connecting the power supply circuit and the input terminal portion is provided.
The power supply circuit has a printed wiring board and has a printed wiring board.
The printed wiring board is formed in a long plate shape by a material similar to the substrate, and has an output terminal portion for outputting the electric power generated by the power supply circuit.
The mounting member is formed in the shape of a long plate having a first surface and a second surface which is a back surface of the first surface.
The substrate is attached to the first surface, and the power supply device is attached to the second surface.
Further, the mounting member is provided with a through hole penetrating from the first surface to the second surface.
The input terminal portion and the output terminal portion are arranged at positions overlapping with the through hole when viewed from the thickness direction of the mounting member.
The connection member is configured to electrically connect the input terminal portion and the output terminal portion through the through hole.
The fixed position of the board with respect to the mounting member and the fixing position of the printed wiring board with respect to the mounting member are on the same side in the longitudinal direction of the mounting member as viewed from the connecting member .
The fixed position of the board and the fixed position of the printed wiring board are on the side opposite to the connecting member with respect to the center in the longitudinal direction of the printed wiring board.
A light source unit characterized by that. 固体発光素子及び前記固体発光素子と電気的に接続されている入力端子部を有する長尺の基板と、
前記固体発光素子に電力を供給する電源回路を有する電源装置と、
前記基板及び前記電源装置が取り付けられる取付部材と、
前記電源回路と前記入力端子部を電気的に接続する接続部材と
を備え、
前記電源回路は、プリント配線板を有し、
前記プリント配線板は、前記基板と同系の材質によって長尺の板状に形成され、かつ、前記電源回路で生成される前記電力を出力する出力端子部を有し、
前記取付部材は、第１面と前記第１面の裏面となる第２面を有する長尺の板状に形成され、
前記第１面に前記基板が取り付けられ、前記第２面に前記電源装置が取り付けられ、
さらに、前記取付部材は、前記第１面から前記第２面に貫通する貫通孔が設けられており、
前記入力端子部及び前記出力端子部は、前記取付部材の厚み方向から見て前記貫通孔と重なる位置に配置されており、
前記接続部材は、前記貫通孔を通して前記入力端子部と前記出力端子部とを電気的に接続するように構成されており、
前記取付部材に対する前記基板の固定位置及び前記取付部材に対する前記プリント配線板の固定位置が、前記接続部材から見て、前記取付部材の長手方向の同じ側であり、
前記基板が前記取付部材に対して固定されている範囲の少なくとも一部は、前記取付部材の短手方向から見て、前記プリント配線板が前記取付部材に対して固定されている範囲と重なっている
ことを特徴とする光源ユニット。 A long substrate having an input terminal portion electrically connected to the solid-state light-emitting element and the solid-state light-emitting element, and
A power supply device having a power supply circuit that supplies electric power to the solid-state light emitting element, and
The mounting member to which the board and the power supply device are mounted, and
With a connection member that electrically connects the power supply circuit and the input terminal portion
Equipped with
The power supply circuit has a printed wiring board and has a printed wiring board.
The printed wiring board is formed in a long plate shape by a material similar to the substrate, and has an output terminal portion for outputting the electric power generated by the power supply circuit.
The mounting member is formed in the shape of a long plate having a first surface and a second surface which is a back surface of the first surface.
The substrate is attached to the first surface, and the power supply device is attached to the second surface.
Further, the mounting member is provided with a through hole penetrating from the first surface to the second surface.
The input terminal portion and the output terminal portion are arranged at positions overlapping with the through hole when viewed from the thickness direction of the mounting member.
The connection member is configured to electrically connect the input terminal portion and the output terminal portion through the through hole.
The fixed position of the board with respect to the mounting member and the fixing position of the printed wiring board with respect to the mounting member are on the same side in the longitudinal direction of the mounting member as viewed from the connecting member.
At least a part of the range in which the board is fixed to the mounting member overlaps with the range in which the printed wiring board is fixed to the mounting member when viewed from the lateral direction of the mounting member. A light source unit characterized by being. 固体発光素子及び前記固体発光素子と電気的に接続されている入力端子部を有する長尺の基板と、
前記固体発光素子に電力を供給する電源回路を有する電源装置と、
前記基板及び前記電源装置が取り付けられる取付部材と、
前記電源回路と前記入力端子部を電気的に接続する接続部材と
を備え、
前記電源回路は、プリント配線板を有し、
前記プリント配線板は、前記基板と同系の材質によって長尺の板状に形成され、かつ、前記電源回路で生成される前記電力を出力する出力端子部を有し、
前記取付部材は、第１面と前記第１面の裏面となる第２面を有する長尺の板状に形成され、
前記第１面に前記基板が取り付けられ、前記第２面に前記電源装置が取り付けられ、
さらに、前記取付部材は、前記第１面から前記第２面に貫通する貫通孔が設けられており、
前記入力端子部及び前記出力端子部は、前記取付部材の厚み方向から見て前記貫通孔と重なる位置に配置されており、
前記接続部材は、前記貫通孔を通して前記入力端子部と前記出力端子部とを電気的に接続するように構成されており、
前記取付部材に対する前記基板の固定位置及び前記取付部材に対する前記プリント配線板の固定位置が、前記接続部材から見て、前記取付部材の長手方向の同じ側であり、
前記接続部材は、
棒状に形成されている導電体と、
第１端子部材と、
第２端子部材と
を有し、
前記第１端子部材は、導電性を有し、かつ、厚み方向に貫通する挿通孔が設けられている板材を有し、
前記板材は、前記基板の厚み方向から見て、前記入力端子部を貫通する孔と前記挿通孔を重ねるようにして、前記入力端子部と電気的に接続され、
前記第１端子部材は、前記導電体の第１端部を、前記入力端子部と電気的かつ機械的に接続するように構成され、
前記第２端子部材は、前記孔を通して前記導電体の第２端部を、前記出力端子部と電気的かつ機械的に接続するように構成されている
ことを特徴とする光源ユニット。 A long substrate having an input terminal portion electrically connected to the solid-state light-emitting element and the solid-state light-emitting element, and
A power supply device having a power supply circuit that supplies electric power to the solid-state light emitting element, and
The mounting member to which the board and the power supply device are mounted, and
With a connection member that electrically connects the power supply circuit and the input terminal portion
Equipped with
The power supply circuit has a printed wiring board and has a printed wiring board.
The printed wiring board is formed in a long plate shape by a material similar to the substrate, and has an output terminal portion for outputting the electric power generated by the power supply circuit.
The mounting member is formed in the shape of a long plate having a first surface and a second surface which is a back surface of the first surface.
The substrate is attached to the first surface, and the power supply device is attached to the second surface.
Further, the mounting member is provided with a through hole penetrating from the first surface to the second surface.
The input terminal portion and the output terminal portion are arranged at positions overlapping with the through hole when viewed from the thickness direction of the mounting member.
The connection member is configured to electrically connect the input terminal portion and the output terminal portion through the through hole.
The fixed position of the board with respect to the mounting member and the fixing position of the printed wiring board with respect to the mounting member are on the same side in the longitudinal direction of the mounting member as viewed from the connecting member.
The connecting member is
The conductor formed in the shape of a rod and
1st terminal member and
It has a second terminal member and
The first terminal member has a plate material which has conductivity and is provided with an insertion hole penetrating in the thickness direction.
The plate material is electrically connected to the input terminal portion so as to overlap the hole penetrating the input terminal portion and the insertion hole when viewed from the thickness direction of the substrate.
The first terminal member is configured to electrically and mechanically connect the first end portion of the conductor to the input terminal portion.
The second terminal member is a light source unit characterized in that the second end portion of the conductor is electrically and mechanically connected to the output terminal portion through the hole. 前記基板が前記取付部材に対して固定されている範囲の少なくとも一部は、前記取付部材の短手方向から見て、前記プリント配線板が前記取付部材に対して固定されている範囲と重なっている
ことを特徴とする請求項１又は３記載の光源ユニット。 At least a part of the range in which the board is fixed to the mounting member overlaps with the range in which the printed wiring board is fixed to the mounting member when viewed from the lateral direction of the mounting member. The light source unit according to claim 1 or 3 , wherein the light source unit is provided. 前記基板及び前記プリント配線板は、合成樹脂製の絶縁基板で形成されている
ことを特徴とする請求項１～４のいずれか１項に記載の光源ユニット。 The light source unit according to any one of claims 1 to 4 , wherein the substrate and the printed wiring board are formed of an insulating substrate made of synthetic resin. 前記接続部材は、
棒状に形成されている導電体と、
第１端子部材と、
第２端子部材と
を有し、
前記第１端子部材は、導電性を有し、かつ、厚み方向に貫通する挿通孔が設けられている板材を有し、
前記板材は、前記基板の厚み方向から見て、前記入力端子部を貫通する孔と前記挿通孔を重ねるようにして、前記入力端子部と電気的に接続され、
前記第１端子部材は、前記導電体の第１端部を、前記入力端子部と電気的かつ機械的に接続するように構成され、
前記第２端子部材は、前記孔を通して前記導電体の第２端部を、前記出力端子部と電気的かつ機械的に接続するように構成されている
ことを特徴とする請求項１又は２記載の光源ユニット。 The connecting member is
The conductor formed in the shape of a rod and
1st terminal member and
It has a second terminal member and
The first terminal member has a plate material which has conductivity and is provided with an insertion hole penetrating in the thickness direction.
The plate material is electrically connected to the input terminal portion so as to overlap the hole penetrating the input terminal portion and the insertion hole when viewed from the thickness direction of the substrate.
The first terminal member is configured to electrically and mechanically connect the first end portion of the conductor to the input terminal portion.
The first or second aspect of the present invention, wherein the second terminal member is configured to electrically and mechanically connect the second end portion of the conductor through the hole to the output terminal portion. Light source unit. 請求項１～６のいずれか１項に記載の光源ユニットと、前記光源ユニットを支持する器具本体とを備えていることを特徴とする照明器具。 A lighting fixture comprising the light source unit according to any one of claims 1 to 6 and a fixture main body that supports the light source unit.
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