JP5106517B2 - Air conditioner outdoor unit - Google Patents

Air conditioner outdoor unit Download PDF

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Publication number
JP5106517B2
JP5106517B2 JP2009261728A JP2009261728A JP5106517B2 JP 5106517 B2 JP5106517 B2 JP 5106517B2 JP 2009261728 A JP2009261728 A JP 2009261728A JP 2009261728 A JP2009261728 A JP 2009261728A JP 5106517 B2 JP5106517 B2 JP 5106517B2
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heat sink
hole
substrate holder
mounting plate
outdoor unit
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JP2011106730A5 (en
JP2011106730A (en
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秀高 山内
岩崎　　弘
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Description

本発明は空気調和機の室外機、特に室外機に内蔵される電装部品内に火が侵入しないようにした安全対策に関するものである。   The present invention relates to a safety measure for preventing fire from entering an outdoor unit of an air conditioner, particularly an electrical component built in the outdoor unit.

従来の空気調和機は、室外機に内蔵される電装品箱の外表面に設けられたヒートシンクの脱落を防止する金属薄板の脱落防止部材はネジ止め等の固着手段によって電装品箱に固着されている。   In the conventional air conditioner, a metal thin plate drop-off prevention member for preventing the heat sink from falling off the outer surface of the electric component box built in the outdoor unit is fixed to the electric component box by fixing means such as screws. Yes.

特開２００７−８５６４９号公報（第１頁、第３図）JP 2007-85649 A (first page, FIG. 3)

従来の空気調和機では、室外機の近傍で火災が発生し、室外機に延焼した際に、樹脂製の電装品箱が溶けることで、脱落防止部材の電装品箱に対する固着がなくなり、ヒートシンクが落下するおそれがあった。
また、電装品箱からヒートシンクが落下すると、火が電装品箱の中まで回り込み、電装品箱内部の制御基板が火で直接焼かれることがある。
このように、制御基板が火で直接焼かれた場合、その後の調査において、発火源が制御基板であるか、室外機の外部であるか見分けがつかなくなり、発火源の特定ができなくなるという問題があった。 In conventional air conditioners, when a fire occurs in the vicinity of the outdoor unit and the fire spreads to the outdoor unit, the resin electrical component box melts, so that the anti-falling member does not stick to the electrical component box, and the heat sink There was a risk of falling.
Further, when the heat sink falls from the electrical component box, fire may enter the electrical component box, and the control board inside the electrical component box may be directly burned by fire.
In this way, when the control board is burned directly with fire, in the subsequent investigation, it is impossible to distinguish whether the ignition source is the control board or the outside of the outdoor unit, and the ignition source cannot be specified. was there.

本発明は、上記のような課題を解決するためになされたもので、室外機の近傍で火災が発生して室外機に延焼した際に、ヒートシンクが電装品箱から落下したり、電装品側に転倒したりすることを防止し、ヒートシンクを固定位置に残すことでヒートシンクが火の延焼を防いで電装品室内に火が侵入しないようにした空気調和機の室外機を得ることを目的とする。   The present invention has been made to solve the above-described problems. When a fire occurs in the vicinity of an outdoor unit and the fire spreads to the outdoor unit, the heat sink falls from the electrical component box or the electrical component side It is intended to obtain an outdoor unit of an air conditioner that prevents the heat sink from intruding into the electrical component room by preventing the fire from falling into the electrical component room by keeping the heat sink in a fixed position. .

本発明に係る空気調和機の室外機は、室外機の内部に配設される電装品箱は、下部に開口を有する金属製の縦リレーパネルと、該縦リレーパネルの開口に取り付けられた方形枠状で樹脂製のヒートシンクサポートと、台板とその台板から突出する複数の放熱フィンとを有してなり、前記ヒートシンクサポートに嵌め付けられる金属製のヒートシンクと、下部に前記ヒートシンクが嵌め付けられるシンク取付穴と、該シンク取付穴の近傍に長方形のプレート収納部及びボス穴部を有する方形で樹脂製の基板ホルダーと、一方の端部にネジ固定穴を有し、他方の端部に嵌合穴を有する略Ｌ字状のヒートシンク取付プレートと、電装部品を搭載し、前記ヒートシンクの台板に前記電装部品を当接させてネジ止めされる基板と、を備えて構成され、前記ヒートシンク取付プレートにおけるネジ固定穴を有する一方の端部を前記基板ホルダーのプレート収納部に嵌め込むと共にもう一方の端部に設けた嵌合穴を前記基板ホルダーのボス穴部に嵌合させ、前記ヒートシンク取付プレートが取り付けられた前記基板ホルダーを前記ヒートシンクサポートに当接させ、前記ヒートシンク取付プレートのネジ固定穴、前記基板ホルダーのプレート収納部のネジ穴及び前記ヒートシンクの台板のネジ穴にネジを螺合し、該ネジにより前記ヒートシンク取付プレートを前記基板ホルダーを介して前記ヒートシンクにネジ止めし、さらに前記ヒートシンク取付プレートの嵌合穴に嵌合した前記基板ホルダーのボス穴部を貫通したネジを前記縦リレーパネルにネジ止めするようにしたものである。 In the outdoor unit of the air conditioner according to the present invention, the electrical component box disposed inside the outdoor unit is a metal vertical relay panel having an opening in the lower part, and a square attached to the opening of the vertical relay panel. A heat sink support made of resin in the shape of a frame, a base plate and a plurality of heat radiation fins protruding from the base plate, and a metal heat sink that is fitted to the heat sink support, and the heat sink is fitted to the lower portion Sink mounting holes, rectangular substrate holders and boss holes in the vicinity of the sink mounting holes, and a resin-made substrate holder, one end with a screw fixing hole, and the other end a substantially L-shaped heat sink mounting plate having a fitting hole, mounted electrical components, the so abutting the heat sink the electric component to the base plate of the structure comprises a substrate to be screwed, the front One end portion having a screw fixing hole in the heat sink mounting plate is fitted into the plate storage portion of the substrate holder and a fitting hole provided in the other end portion is fitted into the boss hole portion of the substrate holder, The substrate holder to which the heat sink mounting plate is attached is brought into contact with the heat sink support, and screws are fixed to the screw fixing holes of the heat sink mounting plate, the screw holes of the plate holder of the substrate holder, and the screw holes of the base plate of the heat sink. Screwing and screwing the heat sink mounting plate to the heat sink via the substrate holder with the screw, and further passing through the boss hole portion of the substrate holder fitted in the fitting hole of the heat sink mounting plate The vertical relay panel is screwed.

本発明に係る空気調和機の室外機においては、ヒートシンク取付プレートの一方の端部は基板ホルダーを介してヒートシンクにネジにより導通状態に固定されるが、ヒートシンク取付プレートの他方の端部は基板ホルダーのボス穴部の周囲にあり、リレーパネルやヒートシンクとは絶縁が保たれた状態で固定されることとなり、火災時において基板ホルダー、ヒートシンクサポート等の樹脂部品が溶けた場合においても、ヒートシンクはヒートシンク取付プレートで繋がってリレーパネルと固定されることとなるので、落下したり、転倒したりすることはなく、ヒートシンクが固定位置に残ることでヒートシンクが火の延焼を防いで電装品室内に火が侵入しないようにしたため、発火源が制御基板であるか、室外機の外部であるかの、発火源の特定ができる効果を有する。 In the outdoor unit of an air conditioner according to the present invention, one end of the heat sink mounting plate but is secured in a conductive state by screws to the heat sink via a substrate holder, the other end of the heat sink mounting plate substrate Around the boss hole of the holder, it is fixed with insulation from the relay panel and heat sink, and even if resin parts such as the substrate holder and heat sink support melt in the event of a fire, the heat sink Since it is connected to the relay panel by connecting with the heat sink mounting plate, it will not fall or fall, and the heat sink will remain in the fixed position, preventing the heat sink from spreading fire and burning the electrical component room. , So that the ignition source is the control board or the outside of the outdoor unit. It has the effect of it is specific.

本発明の実施の形態１に係る空気調和機の室外機で前面パネルを取り外した状態を示す斜視図。The perspective view which shows the state which removed the front panel with the outdoor unit of the air conditioner which concerns on Embodiment 1 of this invention. 同空気調和機の室外機の電装品箱の分解を示す斜視図。The perspective view which shows decomposition | disassembly of the electrical component box of the outdoor unit of the air conditioner. 同空気調和機の室外機のヒートシンク取付プレートを示す斜視図。The perspective view which shows the heat sink attachment plate of the outdoor unit of the air conditioner. 同空気調和機の室外機のリレーパネルにヒートシンクサポートを装着した状態を示す斜視図。The perspective view which shows the state which mounted | wore the heat sink support to the relay panel of the outdoor unit of the air conditioner. 同空気調和機の室外機の基板ホルダーを示す斜視図。The perspective view which shows the board | substrate holder of the outdoor unit of the air conditioner. 同空気調和機の室外機の基板ホルダーへのヒートシンク取付プレートの装着前後の状態を示す斜視図。The perspective view which shows the state before and behind mounting | wearing of the heat sink attachment plate to the board | substrate holder of the outdoor unit of the air conditioner. 同空気調和機の室外機のヒートシンクを取り付けた基板ホルダーへのヒートシンク取付プレートの装着前後の状態を示す斜視図。The perspective view which shows the state before and behind mounting | wearing of the heat sink attachment plate to the board | substrate holder which attached the heat sink of the outdoor unit of the air conditioner. 同空気調和機の室外機のリレーパネルに基板ホルダーとヒートシンクを取り付けた状態を示す斜視図。The perspective view which shows the state which attached the board | substrate holder and the heat sink to the relay panel of the outdoor unit of the air conditioner. 同空気調和機の室外機のリレーパネルに基板ホルダーとヒートシンクを取り付けた状態を示す正面図。The front view which shows the state which attached the board | substrate holder and the heat sink to the relay panel of the outdoor unit of the air conditioner. 図９のＹ−Ｙ線断面図。The YY sectional view taken on the line of FIG. 図１０の一部を拡大した断面図。Sectional drawing which expanded a part of FIG. 図９のＺ−Ｚ線断面図。ZZ sectional drawing of FIG. 図１２の一部を拡大した断面図。Sectional drawing which expanded a part of FIG. 同空気調和機の室外機のリレーパネルにヒートシンクを装着した状態を示す斜視図。The perspective view which shows the state which mounted | wore the heat sink to the relay panel of the outdoor unit of the air conditioner. 図１４に示すリレーパネルにエアーガイドを装着した状態を示す斜視図。The perspective view which shows the state which mounted | wore the air guide to the relay panel shown in FIG.

実施の形態１．
図１は本発明の実施の形態１に係る空気調和機の室外機で前面パネルを取り外した状態を示す斜視図、図２は同空気調和機の室外機の電装品箱の分解を示す斜視図、図３は同空気調和機の室外機のヒートシンク取付プレートを示す斜視図、図４は同空気調和機の室外機のリレーパネルにヒートシンクサポートを装着した状態を示す斜視図である。
図１に示すように、実施の形態１に係る空気調和機の室外機は、底面部のベース１と、ベース１の上面で背面側に配置された熱交換器２と、ベース１の中央部及び左側に配設されたモータサポート３に支持されたプロペラファン４と、ベース１の右側上方に配設された電装品箱５と、ベース１の右側に立設されたセパレータ６に仕切られた右側の下半分の空間に配置された圧縮機７とを備えて構成されている。 Embodiment 1 FIG.
1 is a perspective view showing a state in which a front panel is removed from the outdoor unit of an air conditioner according to Embodiment 1 of the present invention, and FIG. 2 is a perspective view showing an exploded view of an electrical component box of the outdoor unit of the air conditioner. 3 is a perspective view showing a heat sink mounting plate of the outdoor unit of the air conditioner, and FIG. 4 is a perspective view showing a state in which a heat sink support is attached to a relay panel of the outdoor unit of the air conditioner.
As shown in FIG. 1, the outdoor unit of an air conditioner according to Embodiment 1 includes a base 1 at the bottom, a heat exchanger 2 disposed on the back side on the top of the base 1, and a central portion of the base 1. And a propeller fan 4 supported by a motor support 3 disposed on the left side, an electrical component box 5 disposed on the upper right side of the base 1, and a separator 6 erected on the right side of the base 1. And a compressor 7 arranged in the lower half space on the right side.

ベース１の右側上方に配設された電装品箱５の縦リレーパネル８は、熱交換器２に対して斜めになっており、この縦リレーパネル８の面と平行に電装品箱５内の電装部品１０を搭載した基板１１やヒートシンク１２が配置され、ヒートシンク１２を通過する風量を確保しやすい位置となっている。また、電装品箱５の横リレーパネル９はセパレータ６の上端に支持されている。
また、ヒートシンク１２は平板状の台板１２ａと、台板１２ａの表面に突設された複数の放熱フィン１２ｂとで構成されている。 The vertical relay panel 8 of the electrical component box 5 disposed on the upper right side of the base 1 is inclined with respect to the heat exchanger 2, and is parallel to the surface of the vertical relay panel 8 in the electrical component box 5. A substrate 11 and a heat sink 12 on which the electrical component 10 is mounted are disposed, and the air volume passing through the heat sink 12 is easily secured. Further, the horizontal relay panel 9 of the electrical component box 5 is supported by the upper end of the separator 6.
The heat sink 12 is composed of a flat plate 12a and a plurality of heat radiation fins 12b protruding from the surface of the plate 12a.

図２に示すように、電装品箱５は、下部に開口８ａを有する金属製の縦リレーパネル８と、縦リレーパネル８の下端に取り付けられる金属製の横リレーパネル９と、縦リレーパネル８の開口８ａに嵌め付けられる方形枠状の樹脂製ヒートシンクサポート１５と、そのヒートシンクサポート１５に嵌め付けられるヒートシンク１２と、そのヒートシンク１２に一端がネジ止め固定され、他端が長方形状の樹脂製の基板ホルダー１４に仮固定される板金のヒートシンク取付プレート１３と、縦リレーパネル８に取り付けられる基板ホルダー１４の下部に設けたシンク取付穴１４ａに嵌め付けられたヒートシンク１２の台板１２ａにネジ止めされる基板１１と、縦リレーパネル８の外面側に取り付けられ、ヒートシンク１２の放熱フィン１２ｂを覆う樹脂製のエアーガイド１６とを備えて構成されている。   As shown in FIG. 2, the electrical component box 5 includes a metal vertical relay panel 8 having an opening 8 a in the lower part, a metal horizontal relay panel 9 attached to the lower end of the vertical relay panel 8, and a vertical relay panel 8. A rectangular frame-shaped resin heat sink support 15 fitted into the opening 8a, a heat sink 12 fitted into the heat sink support 15, one end of the heat sink 12 fixed with screws, and the other end made of a resin resin having a rectangular shape. Screwed to the base plate 12a of the heat sink 12 fitted in the sink mounting hole 14a provided in the lower portion of the board holder 14 attached to the vertical relay panel 8 and the sheet metal heat sink attachment plate 13 temporarily fixed to the board holder 14. The board 11 is attached to the outer surface of the vertical relay panel 8 and covers the heat radiation fins 12b of the heat sink 12. It is constituted by a air guide 16 made of resin.

図３に示すように、ヒートシンク取付プレート１３はＬ字状をしており、一方の端部に基板ホルダー１４のボス穴部１４ｂと嵌合する嵌合穴１３ａが設けられ、他方の端部にヒートシンク１２と固定するためのネジ固定穴１３ｂが設けられており、これら穴が設けられている２つの端部の面は平行であるが、面の高さは同一にはなっておらず、異なっている。さらに、ヒートシンク取付プレート１３の嵌合穴１３ａとネジ固定穴１３ｂとはそれぞれ異なる穴径である。これはヒートシンク取付プレート１３が基板ホルダー１４に取り付けられ易いようにしたものである。
また、ヒートシンクサポート１５にはヒートシンク取付プレート１３が収まる空間を確保するために右側上部に凸部１５ａが設けられている。 As shown in FIG. 3, the heat sink mounting plate 13 is L-shaped, and is provided with a fitting hole 13a that fits into the boss hole 14b of the substrate holder 14 at one end, and at the other end. Screw fixing holes 13b for fixing to the heat sink 12 are provided, and the surfaces of the two end portions where these holes are provided are parallel, but the heights of the surfaces are not the same and are different. ing. Furthermore, the fitting hole 13a and the screw fixing hole 13b of the heat sink mounting plate 13 have different hole diameters. This is to make it easy to attach the heat sink mounting plate 13 to the substrate holder 14.
Further, the heat sink support 15 is provided with a convex portion 15a on the upper right side in order to secure a space in which the heat sink mounting plate 13 can be accommodated.

次に、室外機の電装品箱５の組み立て手順について説明する。
まず、縦リレーパネル８の開口８ａに方形枠状のヒートシンクサポート１５を嵌め込み、ヒートシンクサポート１５の係合爪（図示省略）を開口８ａに係止させ、縦リレーパネル８の開口８ａにヒートシンクサポート１５を取り付ける。
次に、縦リレーパネル８に取り付けたヒートシンクサポート１５にヒートシンク１２を嵌め付け、ヒートシンク１２の台板１２ａに設けた係合爪（図示省略）をヒートシンクサポート１５に係止させ、ヒートシンクサポート１５にヒートシンク１２を係合固定する（図４参照）。 Next, the assembly procedure of the electrical component box 5 of the outdoor unit will be described.
First, a rectangular frame-shaped heat sink support 15 is fitted into the opening 8 a of the vertical relay panel 8, and an engagement claw (not shown) of the heat sink support 15 is engaged with the opening 8 a, and the heat sink support 15 is inserted into the opening 8 a of the vertical relay panel 8. Install.
Next, the heat sink 12 is fitted to the heat sink support 15 attached to the vertical relay panel 8, and engaging claws (not shown) provided on the base plate 12 a of the heat sink 12 are engaged with the heat sink support 15. 12 is engaged and fixed (see FIG. 4).

しかる後に、図５及び図６に示すように、ヒートシンク取付プレート１３のネジ固定穴１３ｂを有する一方の端部を基板ホルダー１４のシンク取付穴１４ａの上方の右側近傍に設けた長方形のプレート収納部１４ｃに隙間１４ｄから入れて嵌め込む。このとき、ヒートシンク取付プレート１３のネジ固定穴１３ｂとプレート収納部１４ｃに形成されたネジ穴を整合させておく。
次に、図５及び図７に示すように、ヒートシンク取付プレート１３の一方の端部に設けた嵌合穴１３ａを基板ホルダー１４のボス穴部１４ｂに嵌合させる。なお、図７ではヒートシンク１２が基板ホルダー１４のシンク取付穴１４ａに嵌め付けられた状態を示しているが、この段階では、基板ホルダー１４にヒートシンク１２は取り付けられていない。 Thereafter, as shown in FIGS. 5 and 6, the rectangular plate storage portion in which one end portion having the screw fixing hole 13 b of the heat sink mounting plate 13 is provided near the right side above the sink mounting hole 14 a of the substrate holder 14. 14c is inserted through the gap 14d. At this time, the screw fixing hole 13b of the heat sink mounting plate 13 and the screw hole formed in the plate housing portion 14c are aligned.
Next, as shown in FIGS. 5 and 7, the fitting hole 13 a provided at one end of the heat sink mounting plate 13 is fitted into the boss hole 14 b of the substrate holder 14. 7 shows a state in which the heat sink 12 is fitted into the sink mounting hole 14a of the substrate holder 14, but at this stage, the heat sink 12 is not attached to the substrate holder 14.

このように、ヒートシンク取付プレート１３が取り付けられた基板ホルダー１４をヒートシンクサポート１５に当接させる。このとき、ヒートシンクサポート１５に係合固定されているヒートシンク１２が基板ホルダー１４のシンク取付穴１４ａに嵌合し（図８参照）、さらに、ヒートシンク取付プレート１３のネジ固定穴１３ｂとプレート収納部１４ｃのネジ穴とヒートシンク１２の台板１２ａの縁部に設けたネジ穴１２ｃを整合させる。
そこで、図１０及び図１１に示すように、ヒートシンク取付プレート１３のネジ固定穴１３ｂと基板ホルダー１４のプレート収納部１４ｃのネジ穴１４ｄとヒートシンク１２の台板１２ａのネジ穴１２ｃにネジ１７を螺合させ、ヒートシンク取付プレート１３を基板ホルダー１４を介してヒートシンク１２にネジ止めする。
従って、ネジ１７によりヒートシンク取付プレート１３とヒートシンク１２の台板１２ａが基板ホルダー１４を介するが導通状態に固定される。 Thus, the substrate holder 14 to which the heat sink mounting plate 13 is attached is brought into contact with the heat sink support 15. At this time, the heat sink 12 engaged and fixed to the heat sink support 15 is fitted into the sink mounting hole 14a of the substrate holder 14 (see FIG. 8), and further, the screw fixing hole 13b of the heat sink mounting plate 13 and the plate storage portion 14c. And the screw hole 12c provided at the edge of the base plate 12a of the heat sink 12 are aligned.
Therefore, as shown in FIGS. 10 and 11, screws 17 are screwed into the screw fixing holes 13 b of the heat sink mounting plate 13, the screw holes 14 d of the plate storage portion 14 c of the substrate holder 14, and the screw holes 12 c of the base plate 12 a of the heat sink 12. Then, the heat sink mounting plate 13 is screwed to the heat sink 12 via the substrate holder 14.
Therefore, the heat sink mounting plate 13 and the base plate 12a of the heat sink 12 are fixed to the conductive state by the screws 17 through the substrate holder 14.

また、図１２及び図１３に示すように、ネジ１８をヒートシンク取付プレート１３の嵌合穴１３ａに嵌合した基板ホルダー１４のボス穴部１４ｂを貫通するようにして縦リレーパネル８にネジ止めする。これを縦リレーパネル８の表側から見た図が図１４である。
従って、ヒートシンク取付プレート１３は基板ホルダー１４とヒートシングサポート１５との間に挟まれた状態にあるが、基板ホルダー１４のボス穴部１４ｂの周囲にヒートシンク取付プレート１３があるため、ネジ１８は縦リレーパネル８に接触するだけで、ネジ１８とヒートシンク取付プレート１３とは絶縁された状態となる。
その後、基板ホルダー１４の周囲を４本のネジ（図示省略）で縦リレーパネル８に固定する。
さらに、基板ホルダー１４のシンク取付穴１４ａに嵌め付け固定されたヒートシンク１２の台板１２ａに基板１１に搭載した電装部品１０を当接させるように基板１１を台板１２ａにネジ止めする。
最後に、図１５に示すように、縦リレーパネル８の表側からエアーガイド１６を取り付ける。 Further, as shown in FIGS. 12 and 13, the screw 18 is screwed to the vertical relay panel 8 so as to penetrate the boss hole portion 14 b of the board holder 14 fitted in the fitting hole 13 a of the heat sink mounting plate 13. . FIG. 14 shows this as viewed from the front side of the vertical relay panel 8.
Accordingly, the heat sink mounting plate 13 is sandwiched between the substrate holder 14 and the heat sink support 15, but the screw 18 is provided vertically because the heat sink mounting plate 13 exists around the boss hole portion 14 b of the substrate holder 14. The screw 18 and the heat sink mounting plate 13 are insulated only by contacting the relay panel 8.
Thereafter, the periphery of the substrate holder 14 is fixed to the vertical relay panel 8 with four screws (not shown).
Further, the substrate 11 is screwed to the base plate 12 a so that the electrical component 10 mounted on the substrate 11 is brought into contact with the base plate 12 a of the heat sink 12 fitted and fixed in the sink mounting hole 14 a of the substrate holder 14.
Finally, as shown in FIG. 15, the air guide 16 is attached from the front side of the vertical relay panel 8.

以上のように、この実施の形態１では、室外機の電装品箱５の縦リレーパネル８の開口８ａに取り付けられた方形枠状のヒートシンクサポート１５に、Ｌ字状のヒートシンク取付プレート１３のネジ固定穴１３ｂを有する一方の端部を基板ホルダー１４の長方形のプレート収納部１４ｃに嵌め込み、ヒートシンク取付プレート１３のもう一方の端部に設けた嵌合穴１３ａを基板ホルダー１４のボス穴部１４ｂに嵌合させ、ヒートシンク取付プレート１３が取り付けられた基板ホルダー１４をヒートシンクサポート１５に当接させ、ヒートシンク取付プレート１３のネジ固定穴１３ｂ、基板ホルダー１４のプレート収納部１４ｃのネジ穴及びヒートシンク１２の台板１２ａのネジ穴１２ｃにネジ１７を螺合させ、ヒートシンク取付プレート１３を基板ホルダー１４を介してヒートシンク１２にネジ止めし、さらにヒートシンク取付プレート１３の嵌合穴１３ａに嵌合した基板ホルダー１４のボス穴部１４ｂを貫通したネジ１８を縦リレーパネル８にネジ止めするようにしたので、ヒートシンク取付プレート１３の一方の端部は基板ホルダー１４を介したヒートシンク１２にネジ１７により導通状態に固定されるが、ヒートシンク取付プレート１３の他方の端部は基板ホルダー１４のボス穴部１４ｂの周囲にあり、リレーパネル８やヒートシンク１２とは絶縁が保たれた状態で固定されることとなり、火災時において基板ホルダー１４、ヒートシンクサポート１５及びエアーガイド１６等の樹脂部品が溶けた場合においても、ヒートシンク１２はヒートシンク取付プレート１３で繋がって縦リレーパネル８と固定されることとなり、落下したり、転倒したりすることはない。
この場合、基板ホルダー１４、ヒートシンクサポート１５が溶けるため、基板ホルダー１４とヒートシンクサポート１５の肉厚分のガタでヒートシンク１２が傾くだけで、落下することはない。 As described above, in the first embodiment, the screw of the L-shaped heat sink mounting plate 13 is attached to the rectangular frame-shaped heat sink support 15 attached to the opening 8a of the vertical relay panel 8 of the electrical component box 5 of the outdoor unit. One end having the fixing hole 13 b is fitted into the rectangular plate storage portion 14 c of the substrate holder 14, and the fitting hole 13 a provided at the other end of the heat sink mounting plate 13 is formed in the boss hole 14 b of the substrate holder 14. The board holder 14 to which the heat sink mounting plate 13 is fitted is brought into contact with the heat sink support 15, the screw fixing hole 13 b of the heat sink mounting plate 13, the screw hole of the plate storage portion 14 c of the board holder 14, and the base of the heat sink 12. Screws 17 are screwed into the screw holes 12c of the plate 12a, and the heat sink mounting plate 13 A screw 18 that passes through the boss hole 14b of the substrate holder 14 that is fitted into the fitting hole 13a of the heat sink mounting plate 13 is screwed to the vertical relay panel 8 by screwing to the heat sink 12 via the substrate holder 14. Therefore, one end of the heat sink mounting plate 13 is fixed to the heat sink 12 via the substrate holder 14 in a conductive state by a screw 17, but the other end of the heat sink mounting plate 13 is a boss hole of the substrate holder 14. When the resin parts such as the substrate holder 14, the heat sink support 15 and the air guide 16 are melted in the event of a fire, they are fixed around the part 14b and insulated from the relay panel 8 and the heat sink 12. However, the heat sink 12 is connected by the heat sink mounting plate 13. Will be fixed to the vertical relay panel 8, or dropped, will not or to fall.
In this case, since the substrate holder 14 and the heat sink support 15 are melted, the heat sink 12 is merely tilted by the looseness of the thickness of the substrate holder 14 and the heat sink support 15 and does not fall.

１ ベース、２ 熱交換器、３ モータサポート、４ プロペラファン、５ 電装品箱、６ セパレータ、７ 圧縮機、８ 縦リレーパネル、８ａ 開口、９ 横リレーパネル、１０ 電装部品、１１ 基板、１２ ヒートシンク、１２ａ 台板、１２ｂ 放熱フィン、１３ ヒートシンク取付プレート、１３ａ 嵌合穴、１３ｂ ネジ固定穴、１４ 基板ホルダー、１４ａ シンク取付穴、１４ｂ ボス穴部、１４ｃ プレート収納部、１５ ヒートシンクサポート、１５ａ 凸部、１６ エアーガイド、１７ ネジ、１８ ネジ、１９ ブッシュ。   1 base, 2 heat exchanger, 3 motor support, 4 propeller fan, 5 electrical component box, 6 separator, 7 compressor, 8 vertical relay panel, 8a opening, 9 horizontal relay panel, 10 electrical component, 11 substrate, 12 heat sink , 12a Base plate, 12b Radiation fin, 13 Heat sink mounting plate, 13a Fitting hole, 13b Screw fixing hole, 14 Substrate holder, 14a Sink mounting hole, 14b Boss hole part, 14c Plate storage part, 15 Heat sink support, 15a Convex part , 16 Air guide, 17 screws, 18 screws, 19 bushings.

Claims (3)

室外機の内部に配設される電装品箱は、
下部に開口を有する金属製の縦リレーパネルと、
該縦リレーパネルの開口に取り付けられた方形枠状で樹脂製のヒートシンクサポートと、
台板とその台板から突出する複数の放熱フィンとを有してなり、前記ヒートシンクサポートに嵌め付けられる金属製のヒートシンクと、
下部に前記ヒートシンクが嵌め付けられるシンク取付穴と、該シンク取付穴の近傍に長方形のプレート収納部及びボス穴部を有する方形で樹脂製の基板ホルダーと、
一方の端部にネジ固定穴を有し、他方の端部に嵌合穴を有する略Ｌ字状のヒートシンク取付プレートと、
電装部品を搭載し、前記ヒートシンクの台板に前記電装部品を当接させてネジ止めされる基板と、を備えて構成され、
前記ヒートシンク取付プレートにおけるネジ固定穴を有する一方の端部を前記基板ホルダーのプレート収納部に嵌め込むと共にもう一方の端部に設けた嵌合穴を前記基板ホルダーのボス穴部に嵌合させ、
前記ヒートシンク取付プレートが取り付けられた前記基板ホルダーを前記ヒートシンクサポートに当接させ、前記ヒートシンク取付プレートのネジ固定穴、前記基板ホルダーのプレート収納部のネジ穴及び前記ヒートシンクの台板のネジ穴にネジを螺合し、該ネジにより前記ヒートシンク取付プレートを前記基板ホルダーを介して前記ヒートシンクにネジ止めし、さらに前記ヒートシンク取付プレートの嵌合穴に嵌合した前記基板ホルダーのボス穴部を貫通したネジを前記縦リレーパネルにネジ止めするようにしたことを特徴とする空気調和機の室外機。 The electrical component box placed inside the outdoor unit is
A metal vertical relay panel with an opening at the bottom;
A heat sink support made of resin in a rectangular frame shape attached to the opening of the vertical relay panel;
A heat sink made of metal having a base plate and a plurality of heat radiation fins protruding from the base plate, and being fitted to the heat sink support;
A sink mounting hole into which the heat sink is fitted at the bottom; a rectangular resin substrate holder having a rectangular plate storage portion and a boss hole portion in the vicinity of the sink mounting hole;
A substantially L-shaped heat sink mounting plate having a screw fixing hole at one end and a fitting hole at the other end;
Equipped with electrical components, wherein by contact with a heat sink the electric component to the base plate of the structure comprises a substrate to be screwed, and
One end having a screw fixing hole in the heat sink mounting plate is fitted into the plate holder of the substrate holder and a fitting hole provided in the other end is fitted into the boss hole of the substrate holder,
The substrate holder to which the heat sink mounting plate is attached is brought into contact with the heat sink support, and screws are fixed to screw fixing holes of the heat sink mounting plate, screw holes of the plate holder of the substrate holder, and screw holes of the base plate of the heat sink. And screwing the heat sink mounting plate to the heat sink via the substrate holder with the screw, and further passing through the boss hole portion of the substrate holder fitted in the fitting hole of the heat sink mounting plate Is an outdoor unit of an air conditioner characterized in that the vertical relay panel is screwed. 前記ヒートシンク取付プレートにおける嵌合穴を有する一方の端部とネジ固定穴を有するもう一方の端部の面は平行であるが、面の高さは異なっており、前記嵌合穴と前記ネジ固定穴とはそれぞれ異なる穴径であることを特徴とする請求項１記載の空気調和機の室外機。   The surface of one end portion having the fitting hole in the heat sink mounting plate and the other end portion having the screw fixing hole are parallel, but the heights of the surfaces are different, and the fitting hole and the screw fixing are the same. The outdoor unit for an air conditioner according to claim 1, wherein each of the holes has a different hole diameter. 前記基板ホルダーのボス穴部の穴は前記リレーパネルをネジ止めするネジのネジ部に対して大きいことを特徴とする請求項１又は２記載の空気調和機の室外機。   The outdoor unit for an air conditioner according to claim 1 or 2, wherein a hole of a boss hole portion of the substrate holder is larger than a screw portion of a screw for screwing the relay panel.
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CN108702849B (en) * 2016-03-04 2020-09-29 三菱电机株式会社 Electric component module and outdoor unit of air conditioner

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