JPH0988889A - Cooling device - Google Patents
Cooling deviceInfo
- Publication number
- JPH0988889A JPH0988889A JP24007495A JP24007495A JPH0988889A JP H0988889 A JPH0988889 A JP H0988889A JP 24007495 A JP24007495 A JP 24007495A JP 24007495 A JP24007495 A JP 24007495A JP H0988889 A JPH0988889 A JP H0988889A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- condenser
- blades
- impeller
- blower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title description 17
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 11
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000009826 distribution Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、強制的に冷却される凝
縮器などの冷凍サイクルを備えた冷却装置に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling device having a refrigeration cycle such as a condenser that is forcibly cooled.
【０００２】[0002]
【従来の技術】近年の冷蔵庫等の冷却装置においては、
大型化に伴い冷凍サイクルを構成する凝縮器、圧縮機等
の機器は、送風機により強制的に冷却されるようになっ
ており、それら各機器は冷蔵庫本体の下部後方に形成さ
れた機械室内に設置された構成となっている（特開平５
−２６５６３号公報参照）。2. Description of the Related Art In recent years, in cooling devices such as refrigerators,
With the increase in size, equipment such as condensers and compressors that make up the refrigeration cycle are forcibly cooled by a blower, and these equipments are installed in the machine room formed at the lower rear of the refrigerator body. It is configured as described above (Japanese Patent Laid-Open No. Hei 5)
-26563).
【０００３】従来のこの種の冷却装置について、図７及
び図８を参照して説明する。A conventional cooling device of this type will be described with reference to FIGS. 7 and 8.
【０００４】図７及び図８において、１０１は冷蔵庫本
体、１０２は前記冷蔵庫本体１０１の下部後方に区画さ
れた機械室、１０３は凝縮器、１０４は送風機、１０５
は圧縮機、１０６は機械室１０２を二分し、オリフィス
リングを有する仕切板、１０７は空気排出口１０８を設
けた機械室カバー、１０９は機械室１０２の前方壁面１
１０に設けた開放口、１１１は冷蔵庫本体１０１の前方
底部に設けた前方空気取入口、１１２は前方空気取入口
１１１から導入された空気を前記開放口１０９へ向けて
誘導する導風路、１１３は塵埃等の侵入を防ぐフィル
タ、１１４は空気案内面、１１５は蒸発皿である。In FIGS. 7 and 8, 101 is a refrigerator main body, 102 is a machine room defined in the lower rear portion of the refrigerator main body 101, 103 is a condenser, 104 is a blower, and 105.
Is a compressor, 106 is a partition plate that divides the machine room 102 into two and has an orifice ring, 107 is a machine room cover provided with an air outlet 108, and 109 is the front wall surface 1 of the machine room 102.
10, an air inlet 111 provided at the front bottom of the refrigerator body 101, an air guide passage 112 for guiding the air introduced from the front air inlet 111 toward the opening 109, 113 Is a filter for preventing dust and the like from entering, 114 is an air guide surface, and 115 is an evaporation dish.
【０００５】以上の構成により、前方空気取入口１１１
より導風路１１２を介して開放口１０９から機械室１０
２内に取り入れられた空気は、凝縮器１０３、送風機１
０４、圧縮機１０５の順で通過し、空気排出口１０８か
ら外へ排出するようにし、空気案内面１１４によって凝
縮器１０３の全面にわたってほぼ均一な空気の流れが確
保され、効率の良い熱交換が得られるようにしている。With the above structure, the front air intake 111
From the opening 109 through the air guide passage 112 to the machine room 10
The air taken in 2 is the condenser 103, the blower 1
04, the compressor 105 in this order, and is discharged to the outside from the air discharge port 108, and the air guide surface 114 ensures a substantially uniform air flow over the entire surface of the condenser 103, and ensures efficient heat exchange. I am trying to get it.
【０００６】そして上記送風機１０４として、図９に示
すようなＱファン１２０を備えたものが用いられてい
た。図９において、１ａは羽根、５ａはハブ、Ｃは回転
方向である。As the blower 104, one provided with a Q fan 120 as shown in FIG. 9 has been used. In FIG. 9, 1a is a blade, 5a is a hub, and C is the direction of rotation.
【０００７】[0007]
【発明が解決しようとする課題】従来の冷却装置にあっ
ては、省エネの観点からすると、さらに冷却システムを
効率化する必要があり、そのためには凝縮器１０３の熱
交換性を高める必要があるが、凝縮器１０３を配置する
機械室１０２の大きさには制約があり、凝縮器１０３を
必要以上に大きくすることはできないという問題点があ
った。また、凝縮器１０３を通過する空気流量を増加さ
せ熱交換性を高める場合には送風機１０４のファンから
発生する騒音によりファンの回転数が制限され空気流量
を大きく設定できないという問題点があった。In the conventional cooling device, from the viewpoint of energy saving, it is necessary to further improve the efficiency of the cooling system, and for that purpose, it is necessary to enhance the heat exchange performance of the condenser 103. However, there is a problem that the size of the machine room 102 in which the condenser 103 is arranged is limited, and the condenser 103 cannot be made larger than necessary. Further, when increasing the flow rate of air passing through the condenser 103 to improve heat exchange performance, there is a problem that the rotation speed of the fan is limited by noise generated from the fan of the blower 104 and the air flow rate cannot be set large.
【０００８】本発明は、上記のような問題点を解決する
もので、熱交換器を大きくすること無く、また、ファン
騒音を増やすことなく、凝縮器の熱交換効率を高めるこ
とができるようにした冷却装置を提供することを目的と
しているものである。The present invention solves the above-mentioned problems, so that the heat exchange efficiency of the condenser can be increased without increasing the size of the heat exchanger and without increasing the fan noise. It is an object of the present invention to provide such a cooling device.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するため
に、本発明の冷却装置にあっては、複数の羽根をハブの
周りに放射状に設けた羽根車と、羽根車の外周に設けた
オリフィスリングとで軸流ファンを構成し、羽根とハブ
との接合部の円周方向での中心部をＲ１とし、羽根の外
周部の円周方向での中心をＲ２とし、羽根の回転の中心
をＯとしたときに、ＯとＲ２を結んだ線がＯとＲ１を結
んだ線に対して羽根車の回転方向に前進させてあり、か
つ、Ｒ１とＲ２を結ぶ線Ｐが、Ｒ１を通る回転軸と垂直
な面Ｓに対して吸い込み側に傾斜させてあり、かつ、線
Ｐより後縁側の羽根の吸い込み側への傾斜は次第に小さ
くしてあり、かつ、羽根を回転軸に対して同心円筒状に
切断したときの断面において、羽根の略中央より外周側
の断面形状を羽根断面内に変曲点を有し、羽根の回転方
向の前縁から前記変曲点までの間を吐出側が凸面とし、
前記変曲点から羽根の回転方向の後縁までの間を吐出側
が凹面と成るように羽根を形成してなる軸流ファンから
成る送風機と、凝縮器と、圧縮機とを載置板に設置し、
前記凝縮器の空気流上流側に送風機を配置している。In order to achieve the above object, in a cooling device of the present invention, a plurality of blades are provided radially around a hub, and a plurality of blades are provided on the outer circumference of the impeller. An axial fan is constituted by the orifice ring, the center of the joint of the blade and the hub in the circumferential direction is R1, the center of the outer circumference of the blade is R2, and the center of rotation of the blade. Is O, the line connecting O and R2 is advanced in the rotation direction of the impeller with respect to the line connecting O and R1, and the line P connecting R1 and R2 passes through R1. The blade is inclined toward the suction side with respect to the plane S perpendicular to the rotation axis, and the inclination of the blade on the trailing edge side from the line P toward the suction side is gradually reduced, and the blade is concentric with the rotation axis. In the cross section when cut into a cylindrical shape, the cross-sectional shape of the outer peripheral side from the approximate center of the blade Has an inflection point in the plane, between the direction of rotation of the front edge of the blade up to the inflection point to the discharge side is a convex surface,
An air blower consisting of an axial fan having blades formed so that the discharge side is concave between the inflection point and the trailing edge of the blade in the rotation direction, a condenser, and a compressor are installed on a mounting plate. Then
A blower is arranged on the upstream side of the air flow of the condenser.
【００１０】[0010]
【作用】以上のように構成された本発明の冷却装置にお
いては、凝縮器の下流に送風機を配置するのではなく、
送風機を凝縮器の空気流上流側に配置しており、前記の
ように送風機の軸流ファンを形成しているので、送風機
からの吹き出し空気はファン軸方向への直進性が高く、
凝縮器の周りに逃げる空気流が少ないため熱交換効率が
非常に向上する。また熱交換効率を一定にした場合軸流
ファンの回転数を下げることができるので大きな静音化
がはかれる。またこのとき送風機が発生させる乱流空気
を凝縮器に直接当てることになるので凝縮器表面の乱流
促進を行い、大きな放熱効果が得られるとともに凝縮器
への塵埃の付着を防止することができる。また、凝縮器
の上流側に送風機が存在するため、送風機が塵埃をガー
ドして凝縮器への付着を防ぐ効果も得られ、その上送風
機が凝縮器及び圧縮機の上流側にあり、送風機が凝縮器
や圧縮機の熱影響を受けることを避けることができるた
め、送風機の信頼性も向上する。In the cooling device of the present invention configured as described above, instead of disposing a blower downstream of the condenser,
Since the blower is arranged on the upstream side of the air flow of the condenser and forms the axial fan of the blower as described above, the air blown out from the blower has high straightness in the fan axial direction,
The heat exchange efficiency is greatly improved due to the less air flow escaping around the condenser. Further, when the heat exchange efficiency is kept constant, the rotational speed of the axial fan can be lowered, so that a large noise reduction can be achieved. Further, at this time, the turbulent air generated by the blower is directly applied to the condenser, so that the turbulent flow on the condenser surface can be promoted, a large heat radiation effect can be obtained, and the adhesion of dust to the condenser can be prevented. . Further, since there is a blower on the upstream side of the condenser, it is possible to obtain the effect that the blower guards dust and prevents adhesion to the condenser, and on top of that, the blower is on the upstream side of the condenser and the compressor. Since it is possible to avoid being affected by the heat of the condenser and the compressor, the reliability of the blower is also improved.
【００１１】[0011]
【実施例】以下、本発明による冷却装置の実施例につい
て図１から図６を参照して説明する。なお、図１（ａ）
は軸流ファン正面図、図１（ｂ）は図１（ａ）のｂ−ｂ
線矢視断面図、図１（ｃ）は図１（ａ）のｃ−ｃ線矢視
断面図、図２は軸流ファンの斜視図、図３は軸流ファン
の風速分布を、従来例と比較して示す図、図４は冷凍冷
蔵庫における機械室の平面図、図５は図４のＡ−Ａ線矢
視断面図、図６は図４のＢ−Ｂ線矢視断面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a cooling device according to the present invention will be described below with reference to FIGS. Note that FIG. 1 (a)
Is a front view of an axial fan, and FIG. 1 (b) is bb of FIG. 1 (a).
1A is a sectional view taken along the line cc of FIG. 1A, FIG. 2 is a perspective view of the axial fan, and FIG. 3 is a wind velocity distribution of the axial fan. 4 is a plan view of a machine room in a refrigerator-freezer, FIG. 5 is a sectional view taken along the line AA of FIG. 4, and FIG. 6 is a sectional view taken along the line BB of FIG. .
【００１２】図４〜図６において、３１は外箱とうち箱
との間に断熱材を介在させて形成した冷蔵庫本体、３２
は冷蔵庫本体３１の下部後方に形成した機械室で、外箱
底板３３と、凝縮器３４、この凝縮器３４の空気流上流
側に配置した送風機３５、及び圧縮機３６を載置した載
置板３７とにより構成し、外箱底板３３には、図６に示
すように、斜面部３３ａを設けている。３８は機械室カ
バー、３９は冷蔵庫本体３１の外箱底板３３に設けた前
方空気取入口で、ネズミ侵入防止用のスリットカバー４
８が設けてある。４０は機械室カバー３８に設けた複数
のスリット状の後方空気取入口、４１は機械室カバー３
８に設けた複数のスリット状の空気排出口、４２は仕切
板で、機械室３２内を左右の二室に区画している。５６
は仕切板４２に設けたオリフィスリング、４３は圧縮機
３６の直上部に配置した除霜水を受ける蒸発皿、４４は
送風機３５のファンであり詳細は図１〜図３に示す３枚
羽根の軸流ファンである。４５は内箱、４６は断熱材、
４７はドアである。また、図中の矢印は空気対流の方向
を示している。4 to 6, reference numeral 31 is a refrigerator main body formed by interposing a heat insulating material between the outer box and the inner box, and 32.
Is a machine room formed in the lower rear part of the refrigerator main body 31, and is a mounting plate on which an outer box bottom plate 33, a condenser 34, a blower 35 arranged upstream of the condenser 34 in the air flow direction, and a compressor 36 are placed. 37, the outer box bottom plate 33 is provided with a slope 33a as shown in FIG. 38 is a machine room cover, 39 is a front air intake provided in the outer box bottom plate 33 of the refrigerator main body 31, and is a slit cover 4 for preventing a mouse from entering.
8 is provided. 40 is a plurality of slit-shaped rear air inlets provided in the machine room cover 38, 41 is the machine room cover 3
A plurality of slit-shaped air outlets provided at 8 and a partition plate 42 divide the inside of the machine room 32 into two left and right rooms. 56
Is an orifice ring provided on the partition plate 42, 43 is an evaporating dish for receiving defrosting water arranged immediately above the compressor 36, 44 is a fan of the blower 35, and details are shown in FIGS. It is an axial fan. 45 is an inner box, 46 is a heat insulating material,
47 is a door. The arrows in the figure indicate the direction of air convection.
【００１３】前記送風機３５は、図１〜図３に示すよう
に、３枚の羽根１をハブ５の周りに放射線状に設けた羽
根車５５と、羽根車５５の外周に設けたオリフィスリン
グ５６（図３〜図５）とで構成された軸流ファン４４を
備えている。As shown in FIGS. 1 to 3, the blower 35 has an impeller 55 provided with three blades 1 radially around the hub 5, and an orifice ring 56 provided on the outer periphery of the impeller 55. (FIGS. 3 to 5) is provided with the axial flow fan 44.
【００１４】そして図１（ａ）に示すように、羽根１と
ハブ５との接合部２の円周方向での中心部をＲ１とし、
羽根１の外周部３の円周方向での中心をＲ２とし、羽根
１の回転の中心をＯとしたときに、ＯとＲ２を結んだ線
がＯとＲ１を結んだ線に対して羽根車の回転方向Ｃに前
進させてある。この前進させた角度θ1 は１９．５５°
であるが、１５°〜２５°の範囲が好適である。又図１
（ｂ）に示すように、Ｒ１とＲ２を結ぶ線Ｐが、Ｒ１を
通る回転軸Ｌと垂直な面Ｓに対して吸い込み側に傾斜さ
せてあり、かつ、線Ｐより後縁側の羽根１の吸い込み側
への傾斜は次第に小さくしてある。この傾斜角度θ2 は
２５．０°であるが、２０°〜３０°の範囲が好適であ
る。更に、羽根１を回転軸Ｌに対して同心円筒状に切断
したときの断面、すなわち図１（ｃ）に示す断面におい
て、羽根１の略中央より外周側の断面形状を羽根断面内
に変曲点４を有し、羽根１の回転方向Ｃの前縁１ａから
前記変曲点４までの間を吐出側が凸面９とし、前記変曲
点４から羽根１の回転方向の後縁１ｂまでの間を吐出側
が凹面１０と成るように羽根１を形成している。As shown in FIG. 1 (a), the central portion in the circumferential direction of the joint 2 between the blade 1 and the hub 5 is R1,
When the center of the outer peripheral portion 3 of the blade 1 in the circumferential direction is R2 and the center of rotation of the blade 1 is O, the line connecting O and R2 is an impeller against the line connecting O and R1. It is advanced in the rotation direction C of. This advanced angle θ 1 is 19.55 °
However, the range of 15 ° to 25 ° is preferable. See also Figure 1
As shown in (b), the line P connecting R1 and R2 is inclined toward the suction side with respect to the plane S perpendicular to the rotation axis L passing through R1, and the blade 1 on the trailing edge side of the line P is The inclination toward the suction side is gradually reduced. The inclination angle θ 2 is 25.0 °, but a range of 20 ° to 30 ° is preferable. Furthermore, in the cross section when the blade 1 is cut into a concentric cylindrical shape with respect to the rotation axis L, that is, the cross section shown in FIG. Between the front edge 1a of the blade 1 in the rotation direction C and the inflection point 4 is a convex surface 9 on the discharge side, and between the inflection point 4 and the trailing edge 1b of the blade 1 in the rotation direction. The blade 1 is formed so that the discharge side becomes the concave surface 10.
【００１５】以上のように構成された冷蔵庫について、
その動作を説明する。前方空気取入口３９及び後方空気
取入口４０から送風機３５によって取り入れられた冷却
空気は、先ず送風機３５を通過し、送風機３５の軸流フ
ァン４４からその下流側に設置された凝縮器３４に向け
て送風される。図３に示すデータはファン前方略３０ｍ
ｍの位置に置ける風速分布である。Regarding the refrigerator configured as described above,
The operation will be described. The cooling air taken in by the blower 35 from the front air intake 39 and the rear air intake 40 first passes through the blower 35, and goes from the axial fan 44 of the blower 35 toward the condenser 34 installed downstream thereof. Blown. The data shown in FIG. 3 is approximately 30 m in front of the fan.
This is the wind velocity distribution that can be placed at the m position.
【００１６】上記データより、軸流ファン４４は従来の
Ｑファンよりもファンの内側の風速が高く、ファン前面
にある凝縮器３４に均等に風が当たるので熱交換効率が
非常に向上する。一方、ファン外側方向の風速は軸流フ
ァン４４が従来のＱファンに比べ小であるので凝縮器３
４の周囲に逃げる空気流が少なくなり熱交換効率がさら
に向上する。From the above data, the axial fan 44 has a higher wind velocity inside the fan than the conventional Q fan, and the condenser 34 on the front face of the fan is evenly blown, so that the heat exchange efficiency is greatly improved. On the other hand, the wind speed toward the outside of the fan is smaller in the axial fan 44 than in the conventional Q fan, so the condenser 3
The air flow escaping around 4 is reduced, and the heat exchange efficiency is further improved.
【００１７】さらに軸流ファン４４から吹き出す空気流
は乱流状態にあるので、凝縮器３４の表面では空気の乱
流促進により放熱を促進する効果が得られると同時に、
乱流を促進することにより凝縮器３４への塵埃の付着が
防止される効果もある。以上のように冷却空気が凝縮器
３４と熱交換した後、圧縮機３６を冷却し、空気排出口
４１から排出される。また、熱交換効率を一定とする
と、熱交換効率アップ分だけファンの回転数を下げるこ
とにより大幅な静音化を行うこともできる。Further, since the air flow blown out from the axial fan 44 is in a turbulent state, the effect of accelerating the turbulent flow of air on the surface of the condenser 34 can be obtained, and at the same time the effect of radiating heat can be obtained.
Accelerating the turbulent flow also has the effect of preventing dust from adhering to the condenser 34. After the cooling air exchanges heat with the condenser 34 as described above, the compressor 36 is cooled and discharged from the air discharge port 41. Further, if the heat exchange efficiency is kept constant, it is possible to significantly reduce the noise by lowering the rotation speed of the fan by an amount corresponding to the increase in the heat exchange efficiency.
【００１８】このように本実施例の冷蔵庫等の冷却装置
においては凝縮器３４の上流側にファン軸方向の直進性
が高い軸流ファン４４で構成される送風機３５が配置さ
れる構成になっているので、凝縮器３４の熱交換効率を
良くし、静音化も図れる。As described above, in the cooling device for the refrigerator or the like of the present embodiment, the blower 35 constituted by the axial fan 44 having a high straightness in the fan axial direction is arranged upstream of the condenser 34. Therefore, the heat exchange efficiency of the condenser 34 can be improved and the noise can be reduced.
【００１９】[0019]
【発明の効果】以上説明したように構成されている本発
明の冷却装置によれば、凝縮器の上流側に、ファン軸方
向の直進性が高い軸流ファンにより構成される送風機を
配置することにより、凝縮器の周りに逃げる空気流を減
少させ、凝縮器全面に均等に空気流を当て、凝縮器の全
面にわたって空気の流れを乱流とすることにより、効率
の良い熱交換が行われる。また乱流により凝縮器に塵埃
が付着するのも防止でき、送風機が塵埃をガードする役
目も果して塵埃の付着防止がより効果的となり、送風機
が凝縮器及び圧縮機の上流側にあることから凝縮器及び
圧縮機の熱影響を受けることが無く、送風機の信頼性も
向上する。さらに熱交換効率を一定に保ち、ファンの回
転数を下げることにより大幅な静音化も図ることができ
る。また自販機、冷温４面ショーケース、冷温水ボトル
等に本発明を適用することにより、同様の効果が得られ
る。According to the cooling device of the present invention configured as described above, the blower constituted by the axial fan having a high straightness in the fan axial direction is arranged on the upstream side of the condenser. Thus, the air flow escaping around the condenser is reduced, the air flow is evenly applied to the entire surface of the condenser, and the air flow is made turbulent over the entire surface of the condenser, whereby efficient heat exchange is performed. In addition, dust can be prevented from adhering to the condenser due to turbulent flow, and the blower can also serve as a dust guard to prevent dust from adhering more effectively.Because the blower is on the upstream side of the condenser and compressor, condensation The reliability of the blower is improved without being affected by the heat of the air blower and the compressor. Furthermore, by keeping the heat exchange efficiency constant and lowering the rotation speed of the fan, it is possible to significantly reduce noise. The same effect can be obtained by applying the present invention to a vending machine, a cold / hot four-sided showcase, a cold / hot water bottle, and the like.
【図１】本発明の実施例における送風機の軸流ファンを
示し、（ａ）はその正面図、（ｂ）は（ａ）のｂ−ｂ線
矢視断面図、（ｃ）は（ａ）のｃ−ｃ線矢視断面図。FIG. 1 shows an axial fan of a blower according to an embodiment of the present invention, (a) is a front view thereof, (b) is a sectional view taken along the line bb of (a), and (c) is (a). 6 is a cross-sectional view taken along the line cc of FIG.
【図２】上記軸流ファンの斜視図。FIG. 2 is a perspective view of the axial fan.
【図３】本発明の軸流ファンと従来のＱファンの風速分
布を比較して示す図。FIG. 3 is a diagram showing a comparison of wind speed distributions of an axial fan of the present invention and a conventional Q fan.
【図４】本発明の実施例における冷却装置の機械室の平
面図。FIG. 4 is a plan view of a machine room of the cooling device according to the embodiment of the present invention.
【図５】図４のＡ−Ａ線における矢視断面図。5 is a sectional view taken along line AA of FIG.
【図６】図４のＢ−Ｂ線における矢視断面図。6 is a sectional view taken along the line BB of FIG.
【図７】従来における冷却装置の機械室斜視図。FIG. 7 is a perspective view of a machine room of a conventional cooling device.
【図８】同冷却装置の機械室断面図。FIG. 8 is a machine room sectional view of the cooling device.
【図９】従来のＱファンを示し、（ａ）はその正面図、
（ｂ）はその側面図。FIG. 9 shows a conventional Q fan, (a) is a front view thereof,
(B) is the side view.
１ 羽根 １ａ 前縁 １ｂ 後縁 ２ 接合部 ３ 外周部 ４ 変曲点 ５ ハブ ９ 凸面 １０ 凹面 ３４ 凝縮器 ３５ 送風機 ３６ 圧縮機 ３７ 載置板 ４４ 軸流ファン ５５ 羽根車 ５６ オリフィスリング DESCRIPTION OF SYMBOLS 1 Blade 1a Leading edge 1b Rear edge 2 Joined portion 3 Outer peripheral portion 4 Inflection point 5 Hub 9 Convex surface 10 Concave surface 34 Condenser 35 Blower 36 Compressor 37 Mounting plate 44 Axial fan 55 Impeller 56 Orifice ring
フロントページの続き (72)発明者 浜野 泰樹 大阪府東大阪市高井田本通４丁目２番５号 松下冷機株式会社内 (72)発明者 窪田 吉孝 大阪府東大阪市高井田本通４丁目２番５号 松下冷機株式会社内 (72)発明者 金岡 伸一 大阪府東大阪市高井田本通４丁目２番５号 松下冷機株式会社内 (72)発明者 水島 武文 三重県四日市市大字馳出字北新開60 松下 電工株式会社内 (72)発明者 福永 秀雄 三重県四日市市大字馳出字北新開60 松下 電工株式会社内Front Page Continuation (72) Inventor Yasuki Hamano 4-2-5 Takaida Hondori, Higashi-Osaka City, Osaka Prefecture Matsushita Refrigerator Co., Ltd. No. Matsushita Refrigerator Co., Ltd. (72) Inventor Shinichi Kanaoka 4-2-5 Takaidahondori, Higashiosaka-shi, Osaka Prefecture Matsushita Refrigerator Co., Ltd. (72) Inventor Takefumi Mizushima Yokkaichi, Mie Prefecture Kita Shinkai 60 Matsushita Electric Works, Ltd. (72) Hideo Fukunaga Inventor, Yokkaichi City, Mie Prefecture
Claims (1)
た羽根車と、羽根車の外周に設けたオリフィスリングと
で軸流ファンを構成し、羽根とハブとの接合部の円周方
向での中心部をＲ１とし、羽根の外周部の円周方向での
中心をＲ２とし、羽根の回転の中心をＯとしたときに、
ＯとＲ２を結んだ線がＯとＲ１を結んだ線に対して羽根
車の回転方向に前進させてあり、かつ、Ｒ１とＲ２を結
ぶ線Ｐが、Ｒ１を通る回転軸と垂直な面Ｓに対して吸い
込み側に傾斜させてあり、かつ、線Ｐより後縁側の羽根
の吸い込み側への傾斜は次第に小さくしてあり、かつ、
羽根を回転軸に対して同心円筒状に切断したときの断面
において、羽根の略中央より外周側の断面形状を羽根断
面内に変曲点を有し、羽根の回転方向の前縁から前記変
曲点までの間を吐出側が凸面とし、前記変曲点から羽根
の回転方向の後縁までの間を吐出側が凹面と成るように
羽根を形成してなる軸流ファンから成る送風機と、凝縮
器と、圧縮機とを載置板に設置し、前記凝縮器の空気流
上流側に前記送風機を配置することを特徴とする冷却装
置。1. An axial fan is constituted by an impeller having a plurality of blades radially provided around a hub and an orifice ring provided on the outer periphery of the impeller, and a circumferential direction of a joint portion between the blade and the hub. When R1 is the center of the blade, R2 is the center of the outer circumference of the blade in the circumferential direction, and O is the center of rotation of the blade,
The line connecting O and R2 is advanced in the rotation direction of the impeller with respect to the line connecting O and R1, and the line P connecting R1 and R2 is a plane S perpendicular to the rotation axis passing through R1. With respect to the suction side, and the inclination of the blade on the trailing edge side from the line P toward the suction side is gradually reduced, and
In the cross section when the blade is cut into a concentric cylinder with respect to the rotation axis, the cross-sectional shape of the outer peripheral side from the approximate center of the blade has an inflection point within the blade cross section, and the above-mentioned variation from the leading edge in the rotation direction of the blade. A blower comprising an axial fan having a convex surface on the discharge side up to the bending point and a concave surface on the discharge side from the inflection point to the trailing edge in the rotation direction of the blade, and a condenser. And a compressor are installed on a mounting plate, and the blower is arranged on the upstream side of the air flow of the condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24007495A JP2859835B2 (en) | 1995-09-19 | 1995-09-19 | Cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24007495A JP2859835B2 (en) | 1995-09-19 | 1995-09-19 | Cooling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0988889A true JPH0988889A (en) | 1997-03-31 |
| JP2859835B2 JP2859835B2 (en) | 1999-02-24 |
Family
ID=17054112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24007495A Expired - Fee Related JP2859835B2 (en) | 1995-09-19 | 1995-09-19 | Cooling system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2859835B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2372785A (en) * | 2001-01-11 | 2002-09-04 | Lg Electronics Inc | Three-bladed axial flow fan for the condenser of a refrigerator |
| KR100420519B1 (en) * | 2001-08-30 | 2004-03-02 | 엘지전자 주식회사 | A multi type blade fan for the refrigerator |
| WO2013081010A1 (en) * | 2011-11-29 | 2013-06-06 | 日立建機株式会社 | Construction machine |
| TWI625467B (en) * | 2016-07-27 | 2018-06-01 | Sharp Kk | Propeller fan and fluid delivery device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5922080B2 (en) | 2013-10-31 | 2016-05-24 | 京セラドキュメントソリューションズ株式会社 | Image forming apparatus |
-
1995
- 1995-09-19 JP JP24007495A patent/JP2859835B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2372785A (en) * | 2001-01-11 | 2002-09-04 | Lg Electronics Inc | Three-bladed axial flow fan for the condenser of a refrigerator |
| GB2372785B (en) * | 2001-01-11 | 2004-05-05 | Lg Electronics Inc | Fan for condenser of refrigerator |
| KR100420519B1 (en) * | 2001-08-30 | 2004-03-02 | 엘지전자 주식회사 | A multi type blade fan for the refrigerator |
| WO2013081010A1 (en) * | 2011-11-29 | 2013-06-06 | 日立建機株式会社 | Construction machine |
| JP2013113225A (en) * | 2011-11-29 | 2013-06-10 | Hitachi Constr Mach Co Ltd | Construction machine |
| TWI625467B (en) * | 2016-07-27 | 2018-06-01 | Sharp Kk | Propeller fan and fluid delivery device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2859835B2 (en) | 1999-02-24 |
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