JP4466354B2 - lighting equipment - Google Patents

lighting equipment Download PDF

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Publication number
JP4466354B2
JP4466354B2 JP2004363522A JP2004363522A JP4466354B2 JP 4466354 B2 JP4466354 B2 JP 4466354B2 JP 2004363522 A JP2004363522 A JP 2004363522A JP 2004363522 A JP2004363522 A JP 2004363522A JP 4466354 B2 JP4466354 B2 JP 4466354B2
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Prior art keywords
mounting plate
light source
source block
lighting device
mounting
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JP2006172895A (en
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浩史 村山
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Panasonic Corp
Panasonic Electric Works Co Ltd
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Panasonic Corp
Matsushita Electric Works Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/04—Fastening of light sources or lamp holders with provision for changing light source, e.g. turret
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

本発明は、照明器具に関するものである。   The present invention relates to a lighting fixture.

従来から、器具本体内に固定された支持板の下面側に、発光ダイオードが実装されたプリント基板を放熱ゴム等の放熱板を介してねじ止めするとともに、器具本体内においてこの支持板の上方に発光ダイオードの電源基板が固定された照明器具が提供されている（特許文献１）。
特開２００１−３２５８１０号公報（第１図） Conventionally, a printed circuit board on which a light-emitting diode is mounted is screwed to a lower surface side of a support plate fixed in the instrument body via a heat dissipation plate such as a heat dissipation rubber, and above the support plate in the instrument body. There has been provided a lighting fixture in which a power supply substrate of a light emitting diode is fixed (Patent Document 1).
JP 2001-325810 A (FIG. 1)

しかしながら、上記の照明器具では、発光ダイオードが実装されたプリント基板に放熱板を設けているだけであるから、発光ダイオードの熱を放熱板から放熱することはできても、放熱板に伝熱された熱の器具本体外への放熱性が悪いため、結果として十分な放熱性を得ることができなかった。   However, in the above luminaire, since the heat sink is only provided on the printed circuit board on which the light emitting diode is mounted, even though the heat of the light emitting diode can be radiated from the heat sink, the heat is transferred to the heat sink. As a result, sufficient heat dissipation could not be obtained due to poor heat dissipation to the outside of the instrument body.

本発明は上記事情に鑑みて為されたものであり、その目的とするところは、放熱性が向上した照明器具を提供することにある。   This invention is made | formed in view of the said situation, The place made into the objective is to provide the lighting fixture with improved heat dissipation.

上述の課題を解決するために、請求項１の発明では、光源として発光ダイオードを備えた光源ブロックと、該光源ブロックを点灯させる点灯装置と、放熱性を有するとともに光源ブロックが一面部に点灯装置が他面部に取り付けられる取付板と、取付板の他面側に配置されて外部電源の電源線が接続されるとともに、一端が点灯装置に接続された電力供給線が接続される端子台と、光源ブロック、点灯装置、取付板、及び端子台を収納し、一面側に光源ブロックからの光を外方へ出射する開口を有する器具本体とを具備し、器具本体に、一面側から取付板が着脱自在に取り付けられる放熱性を有する取付部を設けていることを特徴とする照明器具とした。   In order to solve the above-mentioned problem, in the invention of claim 1, a light source block having a light emitting diode as a light source, a lighting device for lighting the light source block, a lighting device having heat dissipation and a light source block on one surface portion A mounting plate that is attached to the other surface portion, a terminal block that is disposed on the other surface side of the mounting plate and connected to the power line of the external power source, and to which a power supply line that is connected to the lighting device is connected to one end. A light source block, a lighting device, a mounting plate, and a terminal block are housed, and an instrument body having an opening for emitting light from the light source block outward is provided on one surface side. It was set as the lighting fixture characterized by providing the attaching part which has the heat dissipation attached detachably.

請求項１の発明によれば、放熱性を有する取付板に光源ブロックを取り付けているので、光源ブロックで発生した熱を取付板から放熱でき、加えて、放熱性を有する取付部を用いて取付板を器具本体に取り付けているので、取付部を介して取付板から器具本体に光源ブロックの熱が効率良く伝熱され、これにより放熱性を向上することができる。また、器具本体の取付部に着脱自在に取り付けられる取付板に、光源ブロックと点灯装置とを取り付けているので、取付板の着脱によって光源ブロック及び点灯装置と器具本体との着脱を行うことができ、しかも取付板を器具本体から取り外せば、端子台への電源線等の着脱作業及び端子台の着脱作業が行えるようになるから、部品交換も容易に行うことができる。   According to the first aspect of the invention, since the light source block is attached to the heat radiating mounting plate, the heat generated by the light source block can be radiated from the mounting plate, and in addition, the heat radiating mounting portion is used for mounting. Since the plate is attached to the appliance main body, the heat of the light source block is efficiently transferred from the attachment plate to the appliance main body via the attachment portion, thereby improving the heat dissipation. In addition, since the light source block and the lighting device are attached to the mounting plate that is detachably attached to the mounting portion of the fixture body, the light source block, the lighting device, and the fixture body can be attached and detached by attaching and detaching the mounting plate. In addition, if the mounting plate is removed from the instrument body, the power supply line and the like can be attached to and detached from the terminal block, and the terminal block can be attached and detached, so that the parts can be easily replaced.

請求項２の発明では、請求項１の発明の構成に加えて、取付部と取付板とは面接触していることを特徴とする照明器具とした。   According to the invention of claim 2, in addition to the configuration of the invention of claim 1, the lighting device is characterized in that the mounting portion and the mounting plate are in surface contact.

請求項２の発明によれば、取付部と取付板との間の伝熱性が向上し、これにより放熱性をさらに向上することができる。   According to the second aspect of the present invention, the heat transfer between the mounting portion and the mounting plate is improved, whereby the heat dissipation can be further improved.

請求項３の発明では、請求項１又は請求項２の発明の構成に加えて、器具本体は、筒状の側壁部と、該側壁部の他面側の開口を閉塞する天板部とを備えた形状に形成され、取付部は、器具本体の天板部から側壁部に沿って垂設されるとともに側壁部と熱伝導シートを介して接触していることを特徴とする照明器具とした。   In the invention of claim 3, in addition to the configuration of the invention of claim 1 or claim 2, the instrument body includes a cylindrical side wall portion and a top plate portion that closes the opening on the other surface side of the side wall portion. It is formed in the shape provided, and the mounting portion is a lighting fixture characterized in that it is suspended from the top plate portion of the fixture body along the side wall portion and is in contact with the side wall portion via a heat conductive sheet. .

請求項３の発明によれば、取付部と器具本体とを熱伝導シートを介して接触させているので、取付部と器具本体との間の伝熱性が向上し、これにより放熱性をさらに向上することができる。   According to the invention of claim 3, since the attachment portion and the instrument main body are brought into contact with each other via the heat conductive sheet, the heat transfer between the attachment portion and the instrument main body is improved, thereby further improving the heat dissipation. can do.

請求項４の発明では、請求項３の発明の構成に加えて、取付板は取付部に設けられた係止部が挿通される係止孔を備え、係止孔は係止部の先部より大径の大径部と係止部の先部より小径の小径部とを連続させた形状に形成されるとともに、大径部の中心位置より小径部の中心位置が取付板の外方に位置するように形成されていることを特徴とする照明器具とした。   In the invention of claim 4, in addition to the configuration of the invention of claim 3, the mounting plate includes a locking hole through which a locking portion provided in the mounting portion is inserted, and the locking hole is a tip portion of the locking portion. It is formed into a shape in which a larger diameter portion and a smaller diameter smaller diameter portion are connected to the front end of the locking portion, and the center position of the smaller diameter portion is on the outside of the mounting plate than the center position of the larger diameter portion. It was set as the lighting fixture characterized by being formed so that it might be located.

請求項４の発明によれば、取付板を取付部に取り付けた際に、取付部の係止部が大径部から小径部へ移動することによって取付部が器具本体の側壁部側へ誘導され、これに伴なって、取付部と側壁部とが熱伝導シートを介してより密に接触するから、取付部と器具本体との間の伝熱性が向上し、これにより放熱性をさらに向上することができる。   According to the invention of claim 4, when the attachment plate is attached to the attachment portion, the attachment portion is guided to the side wall portion side of the instrument body by moving the locking portion of the attachment portion from the large diameter portion to the small diameter portion. Along with this, the attachment part and the side wall part come into closer contact with each other through the heat conductive sheet, so that the heat transfer between the attachment part and the instrument body is improved, thereby further improving the heat dissipation. be able to.

請求項５の発明では、請求項１乃至４のいずれか１項の発明の構成に加えて、外部電源の電源線が接続される端子台を取付板に近接するように器具本体内に収納し、取付板は、取付板が器具本体から脱落することを防止する脱落防止手段によって前記端子台の近傍に連結されていることを特徴とする照明器具とした。   In the invention of claim 5, in addition to the structure of any one of claims 1 to 4, the terminal block to which the power line of the external power supply is connected is housed in the instrument body so as to be close to the mounting plate. The mounting plate is connected to the vicinity of the terminal block by a drop-off preventing means for preventing the mounting plate from dropping from the fixture body.

請求項５の発明によれば、端子台を取付板に近接配置しているので、これにより電力供給線の長さ寸法が短くて済み、これにより電力供給線にかかるコストを削減することができる。また、脱落防止手段により取付板を端子基台近傍に連結しているから、取付板の着脱作業時に不注意による取付板の脱落を防止することができる。   According to the invention of claim 5, since the terminal block is disposed close to the mounting plate, the length of the power supply line can be shortened, thereby reducing the cost of the power supply line. . In addition, since the mounting plate is connected to the vicinity of the terminal base by the drop-off preventing means, it is possible to prevent the mounting plate from being inadvertently dropped during the mounting / detaching operation of the mounting plate.

請求項６の発明では、請求項１乃至５のいずれか１項の発明の構成に加えて、光源ブロックと器具本体との間に、光源ブロックを把持する把持用スペースを設けていることを特徴とする照明器具とした。   The invention of claim 6 is characterized in that, in addition to the configuration of the invention of any one of claims 1 to 5, a holding space for holding the light source block is provided between the light source block and the instrument body. It was set as a lighting fixture.

請求項６の発明によれば、光源ブロックを把持して取付板の器具本体への取り付けを行えるから、取付作業が容易となり、これにより部品交換を容易に行える。   According to the sixth aspect of the present invention, since the light source block can be gripped and the mounting plate can be mounted on the instrument body, the mounting operation can be facilitated, whereby the parts can be easily replaced.

請求項７の発明では、請求項１乃至６のいずれか１項の発明の構成に加えて、取付板に放熱用のフィンを設けたことを特徴とする照明器具とした。   According to the invention of claim 7, in addition to the structure of any one of claims 1 to 6, a lighting fixture is provided, wherein a fin for heat dissipation is provided on the mounting plate.

請求項７の発明によれば、放熱性をさらに向上することができる。   According to invention of Claim 7, heat dissipation can be improved further.

本発明の照明器具によれば、光源ブロックで発生した熱が取付板に伝熱されて取付板から放熱されるとともに、取付板に伝熱された光源ブロックの熱が取付部を介して器具本体へ効率良く伝熱されて器具本体からも放熱されるから、放熱性が向上するという効果がある。また、取付板の着脱によって光源ブロックと点灯装置とを器具本体から取り外すことができ、しかも取付板を外すだけで端子台への電源線等の着脱作業及び端子台の着脱作業が行えるようになるから、部品交換を容易に行えるという効果がある。   According to the lighting fixture of the present invention, the heat generated in the light source block is transferred to the mounting plate and radiated from the mounting plate, and the heat of the light source block transferred to the mounting plate is passed through the mounting portion. Since heat is efficiently transferred to the device body and radiated from the instrument body, there is an effect that heat dissipation is improved. In addition, the light source block and the lighting device can be detached from the fixture body by attaching and detaching the mounting plate, and the power supply line and the like can be attached to and detached from the terminal block by simply removing the mounting plate. Therefore, there is an effect that parts can be easily replaced.

本発明の照明器具の実施形態について図１〜図７を参照して説明する。   Embodiment of the lighting fixture of this invention is described with reference to FIGS.

本実施形態の照明器具は、天井面に形成された丸型孔に埋込設置されるダウンライトであり、図１〜図３に示すように、コンクリートスラブ等の建物躯体（図示せず）から垂下された吊りボルト（取付ボルト）Ｂに吊り下げられる器具本体１を備えている。この器具本体１には、光源として発光ダイオード（以下、ＬＥＤという）３０を複数備えたプリント基板３及びＬＥＤ３０からの光が通過されるレンズ体４からなる光源ブロックＬと、光源ブロックＬのＬＥＤ３０を点灯させる点灯装置５と、放熱性を有し下面部（一面部）に光源ブロックＬが取り付けられるとともに上面部（他面部）に点灯装置５が取り付けられる取付板２と、この取付板２の上面側に外部電源の電源線（図示せず）が接続されるとともに点灯装置５の電源線（電力供給線）Ｓ１が接続される端子台８とが収納され、器具本体１の下面側には光源ブロックＬからの光を外方へ出射する開口１ｆが形成されており、この開口１ｆには、レンズ体４を介したＬＥＤ３０の光を下方へ反射する反射面を備えた枠体７が取り付けられている。   The lighting fixture of this embodiment is a downlight embedded and installed in a round hole formed in the ceiling surface. As shown in FIGS. 1 to 3, the building fixture (not shown) such as a concrete slab is used. An instrument main body 1 that is suspended from a suspended suspension bolt (mounting bolt) B is provided. The fixture body 1 includes a light source block L including a printed circuit board 3 including a plurality of light emitting diodes (hereinafter referred to as LEDs) 30 as light sources and a lens body 4 through which light from the LEDs 30 passes, and an LED 30 of the light source block L. A lighting device 5 that is lit, a mounting plate 2 that has heat dissipation and has a light source block L attached to a lower surface portion (one surface portion) and a lighting device 5 attached to an upper surface portion (other surface portion), and an upper surface of the mounting plate 2 A terminal block 8 to which a power line (not shown) of an external power source is connected to the side and a power line (power supply line) S1 of the lighting device 5 is connected is housed. An opening 1f for emitting light from the block L to the outside is formed, and a frame 7 having a reflection surface for reflecting light of the LED 30 through the lens body 4 downward is attached to the opening 1f. To have.

器具本体１は、図１及び図２（ａ）に示すように、円筒状の側壁部１ａと、側壁部１ａの上面開口を閉塞する円盤状の天板部１ｂと、側壁部１ａの下端から側方へ突出し天井材Ｃの周部が載置される鍔部１ｃとを一体に備え、側壁部１ａの下面開口が、光源ブロックＬからの光を外方へ出射するための開口１ｆとなっている。天板部１ｂの中央部には、建物躯体から垂下された吊りボルトＢが挿通される吊下孔１ｄが形成されるとともに、吊下孔１ｄの側方には外部電源の電源線（図示せず）が挿通される一対の電源線挿通孔１ｅ，１ｅが形成されている。また、天板部１ｂの下面側には、図２（ａ）に示すように、外部電源の電源線を接続する端子台８が取り付けられる垂下片１０と、取付板２が着脱自在に取り付けられる一対の取付部１１とがそれぞれ取付ねじ１１０，１１１を用いて取着され、鍔部１ｃの下面側には枠体７を取り付ける取付ねじ１０７に対応したねじ孔１２ａが形成された枠体７取付用の取付片１２が鍔部１ｃを周方向に三等分するように固着されている。   As shown in FIGS. 1 and 2 (a), the instrument body 1 includes a cylindrical side wall portion 1a, a disk-shaped top plate portion 1b that closes the upper surface opening of the side wall portion 1a, and a lower end of the side wall portion 1a. A side wall 1a is integrally provided with a flange portion 1c that protrudes laterally and on which the peripheral portion of the ceiling material C is placed, and an opening 1f for emitting light from the light source block L outward is formed. ing. A suspension hole 1d through which a suspension bolt B suspended from the building frame is inserted is formed at the center of the top plate portion 1b, and a power line (not shown) of an external power source is formed on the side of the suspension hole 1d. A pair of power supply line insertion holes 1e, 1e are formed. Further, as shown in FIG. 2A, a hanging piece 10 to which a terminal block 8 for connecting a power line of an external power source is attached and a mounting plate 2 are detachably attached to the lower surface side of the top plate portion 1b. A pair of attachment portions 11 are attached using attachment screws 110 and 111, respectively, and a frame body 7 attachment in which screw holes 12a corresponding to attachment screws 107 for attaching the frame body 7 are formed on the lower surface side of the flange portion 1c. The attachment piece 12 is fixed so as to divide the flange portion 1c into three equal parts in the circumferential direction.

垂下片１０は、取付ねじ１１０がそれぞれ螺着される一対のねじ孔（図示せず）を有する横片部１０ａと、端子台８が取り付けられる縦片部１０ｂとを備えてＬ字状に形成され、縦片部１０ｂの先端部には、取付板２の脱落防止手段となる連結具９（図６参照）を取り付ける連結孔１０ｃが形成されている。   The drooping piece 10 includes a horizontal piece portion 10a having a pair of screw holes (not shown) into which the attachment screws 110 are screwed, and a vertical piece portion 10b to which the terminal block 8 is attached, and is formed in an L shape. In addition, a connecting hole 10c for attaching a connecting tool 9 (see FIG. 6) serving as a means for preventing the attachment plate 2 from falling off is formed at the tip of the vertical piece 10b.

取付部１１は、図４（ａ）に示すように、例えば、器具本体１に取り付ける取付ねじ１１１がそれぞれ螺着される一対のねじ孔１１ｄ，１１ｄが形成された取着片１１ａと、取付板２を着脱自在に取り付ける係止部となる係止ねじ１０２（図４（ｂ）参照）を螺着するねじ孔１１ｅが略中央部に形成され取付板２と面接触する接触片１１ｃと、取着片１１ａと接触片１１ｃとを連結し、背面（図４（ａ）における右側面）に熱伝導シート（放熱シート）６１が貼着される連結片１１ｂとを一体に備えて、放熱性を有する金属部材から略コ字状に形成された取付金具である。接触片１１ｃのねじ孔１１ｅには、図４（ｂ）に示すように、係止ねじ１０２が螺着されている。このとき、係止ねじ１０２は、頭部１０２ａと接触片１１ｃとの間の長さ寸法が取付板２の板厚程度となるように突出させてあり、取付板２を取り付けた際に取付板２と接触片１１ｃとが面接触する（つまり、取付板２の上面と接触片１１ｃの下面とが当接する）ようにしてある。また、これら取付部１１，１１を器具本体１の天板部１ｂに取り付けた際には、各取付部１１の係止ねじ１０２が互いに天板部１ｂの中心に対して点対称となるようにしてある。   As shown in FIG. 4A, the attachment portion 11 includes, for example, an attachment piece 11a formed with a pair of screw holes 11d and 11d into which attachment screws 111 attached to the instrument body 1 are screwed, and an attachment plate. A screw hole 11e for screwing a locking screw 102 (see FIG. 4 (b)), which is a locking portion for detachably mounting 2, is formed in a substantially central portion, and a contact piece 11c that makes surface contact with the mounting plate 2; The connecting piece 11a and the contact piece 11c are connected to each other, and the connecting piece 11b to which the heat conductive sheet (heat dissipating sheet) 61 is attached to the back surface (the right side surface in FIG. 4A) is integrally provided to provide heat dissipation. It is the attachment metal fitting formed in the substantially U shape from the metal member which has. As shown in FIG. 4B, a locking screw 102 is screwed into the screw hole 11e of the contact piece 11c. At this time, the locking screw 102 is projected so that the length dimension between the head 102a and the contact piece 11c is about the thickness of the mounting plate 2, and when the mounting plate 2 is mounted, the mounting plate 2 2 and the contact piece 11c are in surface contact (that is, the upper surface of the mounting plate 2 is in contact with the lower surface of the contact piece 11c). Further, when these attachment portions 11 and 11 are attached to the top plate portion 1b of the instrument body 1, the locking screws 102 of the respective attachment portions 11 are point-symmetric with respect to the center of the top plate portion 1b. It is.

取付板２は、図５（ａ），（ｂ）に示すように、放熱性を有する部材、例えばアルミニウム等の金属材を用いて円板状に形成され、その板厚が約１０ｍｍに設定されている。この取付板２には、上記の各取付部１１の係止ねじ１０２が挿通可能な係止孔２０，２０が、互いに取付板２の中心Ｏに対して点対称となる位置に形成されている。ここで、係止孔２０は、図５（ａ）に示すように、係止ねじ１０２の頭部１０２ａより大径な大径部２０ａと、頭部１０２ａより小径な小径部２０ｂとを連続させた形状の所謂だるま孔であり、大径部２０ａの中心位置Ｐ１に対して小径部２０ｂの中心位置Ｐ２が取付板２の径方向において外側に位置する、つまり、小径部２０ｂの中心位置Ｐ２が大径部２０ａの中心位置Ｐ１を通る円弧Ｍよりも外方に位置しているのである。したがって、取付板２に形成された一対の係止孔２０，２０は、大径部２０ａの中心間距離Ｐ１−Ｐ１に対して小径部２０ｂの中心間距離Ｐ２−Ｐ２が長くなっている。また、図５（ａ）では省略しているが、取付板２には、レンズ体４を取り付ける取付ねじ１０４，１０４に対応する一対のねじ孔と、点灯装置５を係止する係止ねじ１０５，１０５に対応する一対のねじ孔と、点灯装置５のリード線Ｓ１が挿通される挿通孔２１（図６参照）と、連結具９を取り付ける連結孔２２と、点灯装置５の電源線Ｓ２を結束して張力止めとなる結束具２４が取り付けられる一対の挿通孔２３，２３（図６参照）とを備えている。   As shown in FIGS. 5 (a) and 5 (b), the mounting plate 2 is formed in a disk shape using a heat-dissipating member, for example, a metal material such as aluminum, and the plate thickness is set to about 10 mm. ing. In the mounting plate 2, locking holes 20, 20 through which the locking screws 102 of the mounting portions 11 can be inserted are formed at positions that are symmetrical with respect to the center O of the mounting plate 2. . Here, as shown in FIG. 5A, the locking hole 20 has a large diameter portion 20a larger in diameter than the head portion 102a of the locking screw 102 and a small diameter portion 20b smaller in diameter than the head portion 102a. The center position P2 of the small diameter portion 20b is located outside in the radial direction of the mounting plate 2 with respect to the center position P1 of the large diameter portion 20a, that is, the center position P2 of the small diameter portion 20b is It is located outward from the arc M passing through the center position P1 of the large diameter portion 20a. Therefore, in the pair of locking holes 20 and 20 formed in the mounting plate 2, the center-to-center distance P2-P2 of the small-diameter portion 20b is longer than the center-to-center distance P1-P1 of the large-diameter portion 20a. Although omitted in FIG. 5A, the mounting plate 2 has a pair of screw holes corresponding to mounting screws 104 and 104 for mounting the lens body 4, and a locking screw 105 for locking the lighting device 5. , 105, a through hole 21 (see FIG. 6) through which the lead wire S1 of the lighting device 5 is inserted, a connection hole 22 for attaching the connector 9, and a power line S2 of the lighting device 5. A pair of insertion holes 23 and 23 (see FIG. 6) to which a binding tool 24 that binds and serves as a tension stopper is attached.

光源ブロックＬは、プリント基板３と、レンズ体４とから構成されている。プリント基板３は、配線パターンが形成された円板状のプリント配線板３１に、複数のＬＥＤ３０、本実施形態では図２（ｂ）に示すように、正五角形の各頂点位置及び中心位置に計６個のＬＥＤ３０が実装されて構成されている。レンズ体４は、図３に示すように、透光性を有する部材から薄肉の円柱状に形成されており、上面側には各ＬＥＤ３０に対応した凹部４ｃが形成されたプリント基板３の収納部４ｄを備え、レンズ体４の側周面の上端側には、一対の突片４ａ，４ａが一体に突設されている。この突片４ａには、レンズ体４を取付板２に取り付ける取付ねじ１０４がスペーサー１１４及びパッキン１２４を介して挿通される切欠４ｂが形成されている。ところで、この光源ブロックＬの外形寸法、つまりレンズ体４の外径寸法は取付板２の外径寸法よりも小さく設定してあり、これにより光源ブロックＬを器具本体１に収納した際に、レンズ体４の側周面と器具本体１の側壁部１ａとの間に光源ブロックＬを把持する把持用スペースＦを設けている。   The light source block L is composed of a printed circuit board 3 and a lens body 4. The printed circuit board 3 includes a disk-shaped printed wiring board 31 on which a wiring pattern is formed, a plurality of LEDs 30, and in this embodiment, as shown in FIG. Six LEDs 30 are mounted and configured. As shown in FIG. 3, the lens body 4 is formed in a thin cylindrical shape from a light-transmitting member, and the housing portion of the printed circuit board 3 in which the concave portion 4 c corresponding to each LED 30 is formed on the upper surface side. 4d, and a pair of projecting pieces 4a and 4a are integrally projected on the upper end side of the side peripheral surface of the lens body 4. The projecting piece 4 a is formed with a notch 4 b through which a mounting screw 104 for mounting the lens body 4 to the mounting plate 2 is inserted through a spacer 114 and a packing 124. By the way, the outer dimension of the light source block L, that is, the outer diameter dimension of the lens body 4 is set smaller than the outer diameter dimension of the mounting plate 2. A gripping space F for gripping the light source block L is provided between the side peripheral surface of the body 4 and the side wall 1 a of the instrument body 1.

点灯装置５は、図６に示すように、プリント基板３の各ＬＥＤ３０の点灯制御を行う点灯回路ブロックを直方体状の筐体５０に収納して構成され、この筐体５０の長手方向一端側からは、プリント基板３と電気的に接続されるリード線Ｓ１と、端子台８に電気的に接続されて外部電源からの電力供給を受けるための器具内電線である電源線Ｓ２とが導出されている。また筐体５０の短手方向の両側部には突片５０ａ，５０ａが互いに短手方向において重複しないように突設され、各突片５０ａには係止孔５１が形成され、係止孔５１は、係止ねじ１０５の頭部１０５ａより大径な大径部と、頭部１０５ａより小径な小径部とが連続した形状の所謂だるま孔となっている。   As shown in FIG. 6, the lighting device 5 is configured by housing a lighting circuit block that performs lighting control of each LED 30 of the printed circuit board 3 in a rectangular parallelepiped casing 50, and from one end side in the longitudinal direction of the casing 50. The lead wire S1 that is electrically connected to the printed circuit board 3 and the power supply wire S2 that is electrically connected to the terminal block 8 and receives power supply from an external power source are led out. Yes. Further, projecting pieces 50a, 50a are provided on both sides of the casing 50 in the short direction so as not to overlap each other in the short direction, and a locking hole 51 is formed in each protruding piece 50a. Is a so-called saddle hole in which a large diameter portion larger than the head portion 105a of the locking screw 105 and a small diameter portion smaller than the head portion 105a are continuous.

枠体７は、図１及び図２（ｂ）に示すように、上端から下端へいくにつれて拡径となる円筒状の側壁部７ａと、側壁部７ａの下端から側方へ突出し取付ねじ１０７が挿通される挿通孔７ｃを備えて器具本体１の鍔部１ｃと重複する環状のフランジ部７ｂとを一体に備え、側壁部７ａの内周面が、側壁部７ａの上端開口から入射された光源ブロックＬからの光を下方へ反射する反射面となっている。   As shown in FIGS. 1 and 2B, the frame body 7 has a cylindrical side wall portion 7a that increases in diameter as it goes from the upper end to the lower end, and protrudes laterally from the lower end of the side wall portion 7a. A light source that includes an insertion hole 7c to be inserted and integrally includes an annular flange portion 7b that overlaps the flange portion 1c of the instrument body 1, and an inner peripheral surface of the side wall portion 7a is incident from an upper end opening of the side wall portion 7a. It is a reflecting surface that reflects light from the block L downward.

端子台８は、図６に示すように、外部電源の電源線（図示せず）が接続される端子部と、点灯装置５の電源線Ｓ２が接続される端子部とを備えており、外部電源の電源線と点灯装置５の電源線Ｓ２とを電気的に接続するものである。尚、端子台８は、実際は図６に示す位置には存在しないものであるが、説明の簡略化のために図６ではあえて端子台８を図示している。   As shown in FIG. 6, the terminal block 8 includes a terminal portion to which a power line (not shown) of an external power source is connected and a terminal portion to which the power source line S2 of the lighting device 5 is connected. The power supply line of the power supply and the power supply line S2 of the lighting device 5 are electrically connected. The terminal block 8 does not actually exist at the position shown in FIG. 6, but the terminal block 8 is intentionally illustrated in FIG. 6 for the sake of simplicity.

連結具９は、図６に示すように、ワンタッチで取付可能なスプリングフック等の連結部９０ａ，９０ｂを紐部９１の両端に設けて構成され、取付板２の器具本体１からの脱落を防止する脱落防止手段となるものである。また、紐部９１の長さ寸法は、電源線Ｓ２の長さ寸法より小さく設定してあり、これにより図６に示すように取付板２を器具本体１から取り外した状態で、電源線Ｓ２に荷重がかからないようになり、電源線Ｓ２の断線等を防止することができる。   As shown in FIG. 6, the connector 9 is configured by providing connection portions 90 a and 90 b such as spring hooks that can be attached with one touch at both ends of the string portion 91, and prevents the attachment plate 2 from falling off from the instrument body 1. This is a means to prevent falling off. Moreover, the length dimension of the string part 91 is set smaller than the length dimension of the power supply line S2, and as a result, the attachment plate 2 is removed from the instrument body 1 as shown in FIG. A load is not applied, and disconnection of the power supply line S2 can be prevented.

以上の構成部材により本実施形態の照明器具は構成されており、本実施形態の照明器具において各構成部材は次のようにして取り付けられている。   The lighting fixture of this embodiment is comprised by the above structural member, and each structural member is attached as follows in the lighting fixture of this embodiment.

器具本体１には、垂下片１０と、一対の取付部１１と、３つの取付片１２とが取り付けられている。垂下片１０は、横片部１０ａの上面を器具本体１の天板部１ｂの下面に当接させ、縦片部１０ｂを側壁部１ａに近接させるとともに、横片部１０ａの一対のねじ孔（図示せず）に天板部１ｂを挿通させた取付ねじ１１０，１１０をそれぞれ螺入することで器具本体１に取り付けられている。取付部１１は、取着片１１ａの上面を器具本体１の天板部１ｂの下面に当接させるとともに連結片１１ｂに貼着した熱伝導シート６１を側壁部１ａに接触させ、天板部１ｂを挿通させた取付ねじ１１１，１１１を一対のねじ孔１１ｄ，１１ｄにそれぞれ螺入して器具本体１に取り付けられている。このようにして器具本体１に取り付けられた取付部１１，１１は、図２（ａ）に示すように、天板部１ｂの中心に対して互いに点対称となっている。取付片１２は、上述したように、器具本体１の鍔部１ｃの下面側に、鍔部１ｃを周方向に三等分するように固着されている。   A drooping piece 10, a pair of attachment portions 11, and three attachment pieces 12 are attached to the instrument body 1. The hanging piece 10 abuts the upper surface of the horizontal piece portion 10a on the lower surface of the top plate portion 1b of the instrument body 1, brings the vertical piece portion 10b close to the side wall portion 1a, and a pair of screw holes ( It attaches to the instrument main body 1 by screwing in the attachment screws 110 and 110 through which the top plate portion 1b is inserted. The attachment portion 11 causes the upper surface of the attachment piece 11a to abut against the lower surface of the top plate portion 1b of the instrument main body 1 and causes the heat conductive sheet 61 adhered to the connecting piece 11b to contact the side wall portion 1a, thereby causing the top plate portion 1b. Are attached to the instrument main body 1 by screwing attachment screws 111, 111 through which the screws are inserted into the screw holes 11d, 11d, respectively. Thus, the attaching parts 11 and 11 attached to the instrument main body 1 are point-symmetric with respect to the center of the top plate part 1b as shown in FIG. As described above, the attachment piece 12 is fixed to the lower surface side of the flange portion 1c of the instrument body 1 so as to divide the flange portion 1c into three equal parts in the circumferential direction.

器具本体１には、プリント基板３及びレンズ体４からなる光源ブロックＬと点灯装置５と熱伝導シート６０とが取り付けられた取付板２と、端子台８と、連結具９とが次のようにして収納されている。   The fixture body 1 includes a light source block L composed of a printed circuit board 3 and a lens body 4, a lighting device 5, and a heat conduction sheet 60, a mounting plate 2, a terminal block 8, and a connector 9 as follows. Are stored.

端子台８は、器具本体１に取り付けられた垂下片１０の縦片部１０ｂの先端側（下端側）に取付ねじ１０８を用いて取り付けられている。   The terminal block 8 is attached to the distal end side (lower end side) of the vertical piece portion 10b of the hanging piece 10 attached to the instrument body 1 using an attachment screw 108.

光源ブロックＬは、プリント基板３とレンズ体４とで構成されており、図３に示すように、ＬＥＤ３０が実装された面を下方に向けたプリント基板３を取付板２の下面部に熱伝導シート６０を介して接触させるとともに、ＬＥＤ３０を凹部４ｃにそれぞれ対応させてプリント基板３を収納部４ｄに収納するレンズ体４を取付板２の下面部に配置し、レンズ体４の各突片４ａの切欠４ｂにスペーサー１１４とパッキン１２４とを介して取付ねじ１０４を挿通させ、取付ねじ１０４をこの取付ねじ１０４に対応して取付板２に形成された一対のねじ孔（図示せず）に螺着することで、取付板２に取り付けられている。   The light source block L is composed of a printed circuit board 3 and a lens body 4, and as shown in FIG. 3, the printed circuit board 3 with the LED 30 mounted face down faces the lower surface of the mounting plate 2. A lens body 4 that accommodates the printed circuit board 3 in the accommodating portion 4d with the LEDs 30 corresponding to the recesses 4c is disposed on the lower surface portion of the mounting plate 2 while being in contact with each other via the sheet 60. The mounting screw 104 is inserted into the notch 4b through the spacer 114 and the packing 124, and the mounting screw 104 is screwed into a pair of screw holes (not shown) formed in the mounting plate 2 corresponding to the mounting screw 104. It is attached to the mounting plate 2 by wearing.

点灯装置５は、図６に示すように、取付板２の上面部に突設された一対の係止ねじ１０５の頭部１０５ａをそれぞれ筐体５０の突片５０ａに開口した係止孔５１の大径部に挿通させた後に、点灯装置５を取付板２の上面に沿ってスライドさせて係止ねじ１０５を大径部から小径部へ移動させることで取付板２に取り付けられている。そして、この点灯装置５の筐体５０から導出されたリード線Ｓ１は、取付板２の挿通孔２１を介してプリント基板３に電気的に接続され、筐体５０から導出された電源線Ｓ２は、一対の挿通孔２３，２３を通る結束具２４により取付板２に結束されるとともに、端子台８の端子部に電気的に接続されている。このとき、端子台８は、垂下片１０の下端側に位置させることで取付板２に近接配置してあり、これにより電源線Ｓ２の長さ寸法が短くて済むようになるので、電源線Ｓ２にかかるコストを削減することができる。   As shown in FIG. 6, the lighting device 5 has a locking hole 51 in which the heads 105 a of a pair of locking screws 105 protruding from the upper surface of the mounting plate 2 are opened in the protruding pieces 50 a of the housing 50. After being inserted through the large-diameter portion, the lighting device 5 is slid along the upper surface of the mounting plate 2 and the locking screw 105 is moved from the large-diameter portion to the small-diameter portion to be attached to the mounting plate 2. The lead wire S1 led out from the casing 50 of the lighting device 5 is electrically connected to the printed circuit board 3 through the insertion hole 21 of the mounting plate 2, and the power supply line S2 led out from the casing 50 is In addition to being bound to the mounting plate 2 by a binding tool 24 that passes through the pair of insertion holes 23, 23, it is electrically connected to the terminal portion of the terminal block 8. At this time, the terminal block 8 is positioned close to the mounting plate 2 by being positioned on the lower end side of the drooping piece 10, whereby the length of the power supply line S <b> 2 can be shortened, and thus the power supply line S <b> 2. Cost can be reduced.

このようにして光源ブロックＬと点灯装置５とが取り付けられた取付板２は、器具本体１の一対の取付部１１，１１に着脱自在に取り付けられることになるが、この取り付けは次のようにして行われる。まず、各取付部１１の係止ねじ１０２の頭部１０２ａを上方から取付板２の係止孔２０の大径部２０ａにそれぞれ挿通させ、この後に取付板２の中心軸を回転軸として取付板２を回転させて（図２（ｂ）では反時計方向）、係止ねじ１０２を小径部２０ｂへ移動させるのである。そうすると、頭部１０２ａより小径な小径部２０ｂによって係止ねじ１０２が係止孔２０から抜けなくなり、これにより取付板２を取付部１１，１１に容易に取り付けることができる。また、上述したように光源ブロックＬの側周面と器具本体１の側壁部１ａとの間に光源ブロックＬの把持用スペースＦを設けているから、光源ブロックＬのレンズ体４をその側周面で把持することによって取付板２の着脱作業を行え、これにより取付板２の着脱作業を非常に容易に行うことができるのである。   The attachment plate 2 to which the light source block L and the lighting device 5 are attached in this manner is detachably attached to the pair of attachment portions 11, 11 of the instrument body 1. This attachment is performed as follows. Done. First, the head 102a of the locking screw 102 of each mounting portion 11 is inserted through the large-diameter portion 20a of the locking hole 20 of the mounting plate 2 from above, and thereafter the mounting plate with the central axis of the mounting plate 2 as the rotation axis. 2 is rotated (counterclockwise in FIG. 2B), and the locking screw 102 is moved to the small diameter portion 20b. Then, the locking screw 102 cannot be removed from the locking hole 20 by the small-diameter portion 20b having a smaller diameter than the head portion 102a, whereby the mounting plate 2 can be easily mounted on the mounting portions 11 and 11. Further, as described above, since the holding space F for the light source block L is provided between the side peripheral surface of the light source block L and the side wall portion 1a of the instrument main body 1, the lens body 4 of the light source block L is arranged on its side periphery. The attachment plate 2 can be attached / detached by gripping the surface, whereby the attachment plate 2 can be attached / detached very easily.

また、係止孔２０は、上述したように、大径部２０ａの中心位置Ｐ１に対して小径部２０ｂの中心位置Ｐ２が取付板２の径方向において外側に位置するように形成されているので、係止ねじ１０２を小径部２０ｂに移動させた際に係止ねじ１０２が外方、つまり側壁部１ａに近接する方へ誘導され、これに伴なって取付部１１の連結片１１ｂが側壁部１ａにさらに接近することになるから、連結片１１ｂと側壁部１ａとが熱伝導シート６１を介してより密に接触し、これにより取付部１１と器具本体１との間の伝熱性が向上する。   Further, as described above, the locking hole 20 is formed such that the center position P2 of the small diameter portion 20b is located outside in the radial direction of the mounting plate 2 with respect to the center position P1 of the large diameter portion 20a. When the locking screw 102 is moved to the small-diameter portion 20b, the locking screw 102 is guided outward, that is, toward the side closer to the side wall portion 1a, and accordingly, the connecting piece 11b of the mounting portion 11 is moved to the side wall portion. Since it will come closer to 1a, the connection piece 11b and the side wall part 1a will contact more closely through the heat conductive sheet 61, and, thereby, the heat conductivity between the attachment part 11 and the instrument main body 1 will improve. .

一方、取付板２を取り外す際には、取付板２の中心軸を回転軸として取付板２を回転させて（図２（ｂ）では時計方向）、係止ねじ１０２を小径部２０ｂから大径部２０ａに移動させればよい。   On the other hand, when the mounting plate 2 is removed, the mounting plate 2 is rotated about the central axis of the mounting plate 2 as a rotation axis (clockwise in FIG. 2B), and the locking screw 102 is moved from the small diameter portion 20b to the large diameter. What is necessary is just to move to the part 20a.

連結具９は、一方の連結部９０ａが保持片１０に連結孔１０ｃを用いて取着されるとともに、他方の連結部９０ｂが取付板２に連結孔２２を用いて取着され、これにより取付板２と器具本体１とが紐部９１で繋がれ、取付板２を器具本体１から外した際に、不注意による取付板２の脱落等を防止することができ、また上述したように紐部９１の長さ寸法を電源線Ｓ２の長さ寸法より小さく設定していることによって、連結具９で取付板２を器具本体１に吊り下げた際に、電源線Ｓ２に取付板２（取付板２に取り付けられた光源ブロックＬや点灯装置５を含む）の荷重がかからなくなり、電源線Ｓ２の断線等を防止することができる。   The connector 9 has one connecting portion 90a attached to the holding piece 10 using the connecting hole 10c, and the other connecting portion 90b attached to the mounting plate 2 using the connecting hole 22, thereby being attached. When the plate 2 and the instrument main body 1 are connected by the string portion 91 and the mounting plate 2 is removed from the instrument main body 1, it is possible to prevent the mounting plate 2 from being inadvertently dropped off, and as described above. By setting the length dimension of the portion 91 to be smaller than the length dimension of the power supply line S2, when the attachment plate 2 is suspended from the instrument body 1 by the connector 9, the attachment plate 2 (attachment to the power supply line S2 is attached. The load of the light source block L and the lighting device 5 attached to the plate 2 is not applied, and disconnection of the power supply line S2 can be prevented.

上記のようにしてプリント基板３及びレンズ体４からなる光源ブロックＬと点灯装置５とが取り付けられた取付板２と、端子台８と、連結具９とが収納された器具本体１には、枠体７が取り付けられている。枠体７の器具本体１への取り付けは、側壁部７ａを器具本体１内に挿し入れるとともに、フランジ部７ｂを鍔部１ｃに重複させ、フランジ部７ｂの各挿通孔７ｃを挿通させた取付ねじ１０７を鍔部１ｃに設けられた取付片１２のねじ孔１２ａにそれぞれ螺着することで行われている。   In the fixture body 1 in which the light source block L composed of the printed circuit board 3 and the lens body 4 and the lighting device 5 as described above and the lighting device 5 are attached, the terminal block 8, and the connector 9 are stored. A frame 7 is attached. The frame body 7 is attached to the instrument main body 1 by inserting the side wall portion 7a into the instrument main body 1 and overlapping the flange portion 7b with the flange portion 1c, and through the insertion holes 7c of the flange portion 7b. This is done by screwing 107 into the screw holes 12a of the mounting piece 12 provided in the flange 1c.

以上により本実施形態の照明器具は組み立てられており、この照明器具の天井への埋め込み設置は、次のようにして行う。まず、枠体７及び取付板２を外しておき（取付板２は取付部１１，１１から外しておけば十分であり、連結具９まで外す必要はない）、図１に示すように、吊りボルトＢを天板部１ｂの吊下孔１ｄに挿通させ、吊りボルトＢに器具本体１を支持する支持ナットＮを螺着して器具本体１を吊りボルトＢに吊り下げる。次に、外部電源の電源線（図示せず）を器具本体１の電源線挿通孔１ｅを介して端子台８に電気的に接続し、この後に取付板２及び枠体７を取り付け、鍔部１ｃに天井材Ｃの周部を載置することで照明器具が天井に埋め込み設置される。   The lighting fixture of this embodiment is assembled as described above, and the lighting fixture is embedded in the ceiling as follows. First, the frame body 7 and the mounting plate 2 are removed (the mounting plate 2 is sufficient if it is removed from the mounting portions 11 and 11, and it is not necessary to remove the connector 9), and as shown in FIG. The bolt B is inserted into the suspension hole 1d of the top plate portion 1b, and the support nut N that supports the instrument main body 1 is screwed onto the suspension bolt B to suspend the instrument main body 1 from the suspension bolt B. Next, a power line (not shown) of an external power source is electrically connected to the terminal block 8 through the power line insertion hole 1e of the instrument body 1, and then the mounting plate 2 and the frame body 7 are attached, By placing the peripheral portion of the ceiling material C on 1c, the luminaire is embedded and installed in the ceiling.

したがって、本実施形態の照明器具によれば、放熱性を有する取付板２にＬＥＤ３０が実装されたプリント基板３を取り付けているので、光源ブロックＬで発生した熱を取付板２から放熱でき、また熱伝導シート６１を取付板２と光源ブロックＬとの間に介在させているので、光源ブロックＬと取付板２との間の伝熱性を向上することができる。加えて、放熱性を有する取付部１１を用いて取付板２を器具本体１に取り付けているので、取付部１１からも放熱を行えるとともに、取付部１１を介して取付板２から器具本体１に光源ブロックＬの熱を効率良く伝熱して、器具本体１から放熱することができるので、さらに放熱性を向上することができる。しかも、取付部１１を熱伝導シート６０により器具本体１の側壁部１ａと接触させているので、さらに放熱性が向上する。そのため、器具本体１をアルミダイカスト等の放熱性の良い部材から形成した専用本体としなくても十分な放熱性を得ることができ、結果として器具本体１を低コストで作製することができるようになる。   Therefore, according to the lighting fixture of this embodiment, since the printed circuit board 3 on which the LEDs 30 are mounted is attached to the heat radiating attachment plate 2, the heat generated in the light source block L can be radiated from the attachment plate 2, and Since the heat conductive sheet 61 is interposed between the mounting plate 2 and the light source block L, the heat transfer between the light source block L and the mounting plate 2 can be improved. In addition, since the attachment plate 2 is attached to the instrument main body 1 using the attachment part 11 having heat dissipation properties, heat can be radiated from the attachment part 11 and the attachment plate 2 to the instrument main body 1 via the attachment part 11. Since the heat of the light source block L can be efficiently transferred and radiated from the instrument main body 1, the heat dissipation can be further improved. And since the attaching part 11 is made to contact with the side wall part 1a of the instrument main body 1 with the heat conductive sheet 60, heat dissipation is improved further. Therefore, sufficient heat dissipation can be obtained even if the instrument main body 1 is not a dedicated main body formed from a member having good heat dissipation such as aluminum die casting so that the instrument main body 1 can be manufactured at low cost. Become.

また、器具本体１の取付部１１，１１に着脱自在に取り付けられる取付板２に光源ブロックＬとその点灯装置５とを取り付けているので、取付板２の着脱によって、光源ブロックＬ及び点灯装置５と器具本体１との着脱を行うことができ、しかも取付板２を器具本体１から取り外せば、端子台８への電源線等の着脱作業及び端子台８自体の着脱作業が行えるようになるから、メンテナンス性が向上し、部品交換も容易に行うことができる。加えて、点灯装置５を取付板２に取り付けていることによって、器具本体の上面側に点灯装置を配置収納しているものに比べて、上面側の収納スペースを小さくして器具本体を小型化することができ、また施工時には、端子台８に電源線等を接続する結線作業のための作業用スペースを広くとることができるから、施工性を向上できる。   In addition, since the light source block L and the lighting device 5 are attached to the attachment plate 2 that is detachably attached to the attachment portions 11 and 11 of the fixture body 1, the light source block L and the lighting device 5 are attached by attaching and detaching the attachment plate 2. The instrument body 1 can be attached to and detached from the instrument body 1, and if the mounting plate 2 is removed from the instrument body 1, the power source line can be attached to and detached from the terminal block 8 and the terminal block 8 itself can be detached and attached. Maintenance is improved and parts can be replaced easily. In addition, by attaching the lighting device 5 to the mounting plate 2, it is possible to reduce the storage space on the upper surface side and reduce the size of the device body, compared to the case where the lighting device is disposed and stored on the upper surface side of the device body. Further, at the time of construction, the workability for connecting work for connecting a power line or the like to the terminal block 8 can be widened, so that workability can be improved.

ところで、本実施形態において取付板２は、図７（ａ）に示すように、単に円板状のものを用いているが、図７（ｂ）に示すように、光源ブロックＬの周囲に放熱用のフィン２５を複数立設することとしてもよく、このように放熱用のフィン２５を複数設けることによって放熱性のさらなる向上を図ることができる。しかも、フィン２５に十分な強度を持たせておけば、このフィン２５を光源ブロックＬの代わりに取付板２の把持部として利用することができるようになり、取付板２の着脱作業をさらに容易に行えるようになる。尚、図７（ａ），（ｂ）ではレンズ体４を簡略化して示している。   Incidentally, in the present embodiment, the mounting plate 2 is simply a disc-shaped one as shown in FIG. 7A, but as shown in FIG. 7B, heat is radiated around the light source block L. A plurality of fins 25 may be erected, and the heat dissipation can be further improved by providing a plurality of heat dissipation fins 25 in this manner. In addition, if the fins 25 have sufficient strength, the fins 25 can be used as gripping portions for the mounting plate 2 instead of the light source block L, and the mounting and dismounting operation of the mounting plate 2 is further facilitated. Will be able to do. 7A and 7B show the lens body 4 in a simplified manner.

本発明の一実施形態の照明器具を示す概略断面図である。It is a schematic sectional drawing which shows the lighting fixture of one Embodiment of this invention. （ａ）は、同上の照明器具の上面側から見た透視図であり、（ｂ）は、同上の一部を切り欠いた照明器具の下面側から見た透視図である。(A) is the perspective view seen from the upper surface side of the lighting fixture same as the above, (b) is the perspective view seen from the lower surface side of the lighting fixture which notched a part of the same as the above. 同上の照明器具の要部の分解側面図である。It is a disassembled side view of the principal part of a lighting fixture same as the above. （ａ）は、取付部を上方から見た斜視図であり、（ｂ）は、取付部を下方から見た斜視図である。(A) is the perspective view which looked at the attaching part from the upper part, (b) is the perspective view which looked at the attaching part from the lower part. （ａ）は、取付板の一部を省略した上面図であり、（ｂ）は、取付板の側面図である。(A) is the top view which abbreviate | omitted a part of attachment plate, (b) is a side view of an attachment plate. 同上の照明器具の取付板を外した状態を示す概略断面図である。It is a schematic sectional drawing which shows the state which removed the attachment plate of the lighting fixture same as the above. （ａ）は、光源ブロックが取り付けられた取付板の斜視図であり、（ｂ）は、光源ブロックが取り付けられた他の取付板の斜視図である。(A) is a perspective view of the attachment plate to which the light source block is attached, and (b) is a perspective view of another attachment plate to which the light source block is attached.

符号の説明Explanation of symbols

１ 器具本体
１ｆ 開口
２ 取付板
５ 点灯装置
７ 枠体
１１ 取付部
Ｌ 光源ブロック
Ｓ２ 電源線 DESCRIPTION OF SYMBOLS 1 Instrument main body 1f Opening 2 Mounting plate 5 Lighting device 7 Frame 11 Mounting part L Light source block S2 Power supply line

Claims (7)

光源として発光ダイオードを備えた光源ブロックと、該光源ブロックを点灯させる点灯装置と、放熱性を有するとともに光源ブロックが一面部に点灯装置が他面部に取り付けられる取付板と、取付板の他面側に配置されて外部電源の電源線が接続されるとともに、一端が点灯装置に接続された電力供給線が接続される端子台と、光源ブロック、点灯装置、取付板、及び端子台を収納し、一面側に光源ブロックからの光を外方へ出射する開口を有する器具本体とを具備し、器具本体に、一面側から取付板が着脱自在に取り付けられる放熱性を有する取付部を設けていることを特徴とする照明器具。   A light source block including a light emitting diode as a light source, a lighting device that lights the light source block, a mounting plate that has heat dissipation and the light source block is mounted on one surface, and the lighting device is mounted on the other surface, and the other surface of the mounting plate And a terminal block to which a power supply line connected to the lighting device is connected, a light source block, a lighting device, a mounting plate, and a terminal block, An instrument body having an opening for emitting light from the light source block outward on one surface side, and a mounting portion having a heat dissipation property to which a mounting plate is detachably attached from the one surface side is provided on the instrument body. Lighting equipment characterized by 取付部と取付板とは面接触していることを特徴とする請求項１に記載の照明器具。   The lighting device according to claim 1, wherein the mounting portion and the mounting plate are in surface contact. 器具本体は、筒状の側壁部と、該側壁部の他面側の開口を閉塞する天板部とを備えた形状に形成され、取付部は、器具本体の天板部から側壁部に沿って垂設されるとともに側壁部と熱伝導シートを介して接触していることを特徴とする請求項１又は請求項２に記載の照明器具。   The instrument body is formed in a shape including a cylindrical side wall part and a top plate part that closes the opening on the other surface side of the side wall part, and the attachment part extends along the side wall part from the top plate part of the instrument body. The lighting device according to claim 1, wherein the lighting fixture is in contact with the side wall portion via a heat conductive sheet. 取付板は取付部に設けられた係止部が挿通される係止孔を備え、係止孔は係止部の先部より大径の大径部と係止部の先部より小径の小径部とを連続させた形状に形成されるとともに、大径部の中心位置より小径部の中心位置が取付板の外方に位置するように形成されていることを特徴とする請求項３に記載の照明器具。   The mounting plate has a locking hole through which a locking portion provided in the mounting portion is inserted, and the locking hole has a large diameter portion larger in diameter than the tip portion of the locking portion and a small diameter smaller in diameter than the tip portion of the locking portion. 4. The device according to claim 3, wherein the center portion is formed in a shape in which the portion is continuous, and the center position of the small-diameter portion is positioned outward of the mounting plate from the center position of the large-diameter portion. Lighting fixtures. 外部電源の電源線が接続される端子台を取付板に近接するように器具本体内に収納し、取付板は、取付板が器具本体から脱落することを防止する脱落防止手段によって前記端子台の近傍に連結されていることを特徴とする請求項１乃至４のいずれか１項に記載の照明器具。   The terminal block to which the power line of the external power supply is connected is housed in the fixture body so as to be close to the mounting plate, and the mounting plate is attached to the terminal block by a drop prevention means for preventing the mounting plate from dropping from the fixture body. It is connected to the vicinity, The lighting fixture of any one of Claim 1 thru | or 4 characterized by the above-mentioned. 光源ブロックと器具本体との間に、光源ブロックを把持する把持用スペースを設けていることを特徴とする請求項１乃至５のいずれか１項に記載の照明器具。   The lighting fixture according to any one of claims 1 to 5, wherein a holding space for holding the light source block is provided between the light source block and the fixture main body. 取付板に放熱用のフィンを設けたことを特徴とする請求項１乃至６のいずれか１項に記載の照明器具。   The lighting fixture according to any one of claims 1 to 6, wherein a fin for heat radiation is provided on the mounting plate.
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