JPH11270871A - Blower - Google Patents

Blower

Info

Publication number
JPH11270871A
JPH11270871A JP10093908A JP9390898A JPH11270871A JP H11270871 A JPH11270871 A JP H11270871A JP 10093908 A JP10093908 A JP 10093908A JP 9390898 A JP9390898 A JP 9390898A JP H11270871 A JPH11270871 A JP H11270871A
Authority
JP
Japan
Prior art keywords
blades
blade
blower
center part
mounting angle
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
Application number
JP10093908A
Other languages
Japanese (ja)
Other versions
JP3604899B2 (en
Inventor
Kiyoshi Koyama
清 小山
Shigeya Ishigaki
茂弥 石垣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP09390898A priority Critical patent/JP3604899B2/en
Publication of JPH11270871A publication Critical patent/JPH11270871A/en
Application granted granted Critical
Publication of JP3604899B2 publication Critical patent/JP3604899B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)

Abstract

PROBLEM TO BE SOLVED: To increase wind volume per number of rotations, and to make flow with a center part uniform by making the mounting angle of a blade being positioned at a part from a place where wind velocity decreases as compared with the center part to a side plate smaller than that of the center part. SOLUTION: In a blower, when all blades including blades 15, 16, and 17 are erected at a normal mounting angle, the wind velocity of the left and right end parts of a cross flow fan is reduced as compared with a center part. As a result, the capacity of the entire blower is reduced. The mounting angle for erecting the blade of a region (b) including the blades 15 and 17 of the left and right end parts of the cross flow fan where the wind velocity is reduced to a rotary shaft is set smaller than that for erecting the blade of a region (a) including the blade 16 of the center part to a rotary shaft 1 for erecting the blade by considering noise or the like, thus increasing the wind velocity of a part where the wind velocity is reduced, improving the lack of uniformity of flow with the center part, and increasing the amount of wind.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は空気調和機等に用い
られるクロスフローファンからなる送風機に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blower comprising a cross flow fan used for an air conditioner or the like.

【0002】[0002]

【従来の技術】空気調和機の室内ユニットとしての室内
機には、熱交換器、ファンモータ、このモータで駆動さ
れ、熱交換器で加熱/冷却された空気を室内に戻すクロ
スフローファンからなる送風機及び室内制御部が搭載さ
れている。
2. Description of the Related Art An indoor unit as an indoor unit of an air conditioner includes a heat exchanger, a fan motor, and a cross flow fan driven by the motor and returning the air heated / cooled by the heat exchanger to a room. A blower and an indoor control unit are mounted.

【0003】図2に一般的な空気調和機の室内機の要部
分解図を示す。室内機は大別すると、室内機本体1、ク
ロスフローファン2、熱交換器3からなり、室内機本体
1のスクロールケーシング4には垂直に整流板(リブ)
5が設けられ、クロスフローファン2はファンモータ6
と軸結されている。クロスフローファン2は所定間隔で
立設するファンプレート14の間に回転軸に平行して周
方向に複数の羽根(ブレード)16を架設している。ク
ロスフローファン2は軸受7、取付部材8、9等により
室内機本体1に取り付けられる。
FIG. 2 is an exploded view of a main part of a general air conditioner indoor unit. The indoor unit is roughly divided into an indoor unit main body 1, a cross flow fan 2, and a heat exchanger 3, and a scroll casing 4 of the indoor unit main body 1 has a straightening plate (rib) vertically.
5 is provided, and the cross flow fan 2 is provided with a fan motor 6.
It is connected with. The cross flow fan 2 has a plurality of blades 16 arranged circumferentially in parallel with a rotation axis between fan plates 14 erected at predetermined intervals. The cross flow fan 2 is mounted on the indoor unit main body 1 by bearings 7, mounting members 8, 9, and the like.

【0004】さらに熱交換器3を取り付けて室内機を構
成し、クロスフローファン2を回転させると、吸込みグ
リルを通して室内機内に吸込まれる室内空気は熱交換器
3を通過した後、クロスフローファン2を貫流して吹出
口より加熱/冷却された空気が室内に吹出される。この
時、スクロールケーシング4に整流板(リブ)5を設
け、それによって空気流は整流され、安定にされて騒音
の発生を低減している。
Further, when the indoor unit is constructed by attaching the heat exchanger 3 and the cross-flow fan 2 is rotated, the indoor air sucked into the indoor unit through the suction grill passes through the heat exchanger 3 and then passes through the cross-flow fan. The air heated and cooled through the air outlet through the air outlet 2 is blown into the room. At this time, a flow straightening plate (rib) 5 is provided on the scroll casing 4 so that the air flow is straightened and stabilized to reduce the generation of noise.

【0005】[0005]

【発明が解決しようとする課題】しかし、クロスフロー
ファンの回転軸方向に所定間隔で立設するファンプレー
トの間に、回転軸に平行して周方向に複数の羽根(ブレ
ード)を架設しているタイプの送風機では、一般に、ク
ロスフローファンの左右両端部の風速が中央部に比べて
風速が低下し、送風機全体としては風量が低下する欠点
があった。そこで本発明は、回転数あたりの風量を増加
させることにより、中央部との流れの不均一を改善し、
風量の増加を図る送風機を提供することを目的とする。
However, a plurality of blades are erected in the circumferential direction in parallel with the rotating shaft between fan plates erected at predetermined intervals in the rotating shaft direction of the cross flow fan. In general, the blower of this type has a drawback in that the wind speed at the left and right ends of the cross flow fan is lower than that at the center, and the air volume of the blower as a whole is reduced. Therefore, the present invention improves the non-uniformity of the flow with the center by increasing the air volume per rotation speed,
It is an object of the present invention to provide a blower that increases the air volume.

【0006】[0006]

【課題を解決するための手段】上記目的を達成するため
に本発明の請求項1に係る送風機は、一対の側プレート
の間に、ファンプレートを所定間隔で立設すると共に、
上記各プレートの間に回転軸に平行して周方向に複数の
羽根(ブレード)を架設してなる送風機において、中央
部より風速が低下する所より側プレートまでに位置する
羽根(ブレード)の取付角を中央部の取付角よりも小さ
く設定した構成とする。
According to a first aspect of the present invention, there is provided a blower having a fan plate provided at a predetermined interval between a pair of side plates.
In a blower in which a plurality of blades (blades) are laid in the circumferential direction in parallel with the rotation axis between the respective plates, mounting of the blades (blades) located from the center where the wind speed decreases to the side plate. The angle is set smaller than the mounting angle at the center.

【0007】本発明の請求項2に係る送風機は、一対の
側プレートの間に、ファンプレートを所定間隔で立設す
ると共に、上記各プレートの間に回転軸に平行して周方
向に複数の羽根(ブレード)を架設してなる送風機にお
いて、風速の変動が中央部の風速のおよそ20%を越え
る範囲の羽根(ブレード)の取付角を中央部の取付角に
対して変更する構成とする。
In the blower according to a second aspect of the present invention, fan plates are erected at a predetermined interval between a pair of side plates, and a plurality of fan plates are provided between the respective plates in a circumferential direction in parallel with a rotation axis. In the blower having the blades (blades) mounted thereon, the mounting angle of the blades (blades) in a range where the variation of the wind speed exceeds about 20% of the wind speed in the central portion is changed with respect to the mounting angle in the central portion.

【0008】こうして、クロスフローファンの左右両端
部の風速が中央部に比べて風速が低下して送風機全体と
しては風量が低下するようなことがあっても、回転数あ
たりの風量を増加させることにより、中央部との流れの
不均一を改善し、風量の増加を図ることができる。
[0008] Thus, even if the wind speed at the left and right ends of the cross flow fan is lower than that at the center and the overall air volume is reduced, the air volume per rotation speed is increased. Thereby, the unevenness of the flow with the central portion can be improved, and the air volume can be increased.

【0009】[0009]

【発明の実施の形態】次に図を参照して本発明を説明す
る。図1は本発明の送風機に用いられるクロスフローフ
ァンの正面図を示す。図において、11はクロスフロー
ファンの回転軸、12は左側プレート、13は右側プレ
ート、14は所定間隔で立設するファンプレート、1
5,16,17は羽根(ブレード)であり、各プレート
の間に回転軸に平行して周方向に複数枚が架設されてい
る。そして、各羽根(ブレード)は回転軸1の軸の中心
に対して所定の角度(取付角)でもって架設されてい
る。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 shows a front view of a cross flow fan used in the blower of the present invention. In the drawing, reference numeral 11 denotes a rotating shaft of a cross flow fan, 12 denotes a left plate, 13 denotes a right plate, 14 denotes a fan plate which stands up at a predetermined interval, 1
Reference numerals 5, 16, and 17 denote blades, and a plurality of blades are provided between the plates in the circumferential direction in parallel with the rotation axis. Each blade (blade) is installed at a predetermined angle (mounting angle) with respect to the center of the axis of the rotating shaft 1.

【0010】このように構成されたクロスフローファン
を空気調和機に適用して回転させると、吸込みグリルを
通して室内機内に吸込まれる室内空気は熱交換器を通過
した後、クロスフローファンを貫流して吹出口より加熱
/冷却された空気が室内に吹出される。このとき、回転
数あたりの風量を大きく得て効率的な運転を行なうに
は、羽根(ブレード)15,16,17を含めた全ての
羽根を回転軸1に対して取付角を小さくすることによっ
て大きな風量が得られるが、それに伴う騒音等を考慮す
ると、通常は約23°の角度をもって回転軸1に取付け
られている。
When the cross-flow fan thus configured is applied to an air conditioner and rotated, the indoor air sucked into the indoor unit through the suction grill passes through the heat exchanger and then flows through the cross-flow fan. The air heated / cooled from the outlet is blown into the room. At this time, in order to obtain a large air volume per rotation and perform efficient operation, all the blades including the blades (blades) 15, 16, 17 are attached to the rotating shaft 1 by reducing the mounting angle. Although a large air volume can be obtained, it is usually mounted on the rotating shaft 1 at an angle of about 23 ° in consideration of the accompanying noise and the like.

【0011】しかし、全ての羽根(ブレード)を通常の
取付角で架設した場合、一般に、クロスフローファンフ
ァンの左右両端部の風速が中央部に比べて風速が低下す
る現象が生じる。クロスフローファンの回転数によって
も影響されるので一概には言えないが、一例を上げれ
ば、中央部の風速が0.7m/sのとき、左右両端部の
風速が0.4m/sとなる場合もある。このことが送風
機全体の風量を低下させる要因になっている。
However, when all the blades (blades) are installed at a normal mounting angle, generally, a phenomenon occurs in which the wind speed at the left and right ends of the cross flow fan fan is lower than that at the center. Since it is influenced by the rotation speed of the cross flow fan, it cannot be said unconditionally. However, for example, when the wind speed at the center is 0.7 m / s, the wind speed at both left and right ends is 0.4 m / s. In some cases. This is a factor that reduces the air volume of the entire blower.

【0012】そこで本発明では、風速が低下するクロス
フローファンファンの左右両端部の羽根(ブレード)1
5,17を含む領域bのブレードを回転軸1に架設する
取付角を、騒音等を考慮して、中央部の羽根(ブレー
ド)16を含む領域aのブレードを回転軸1に架設する
取付角よりも、約23°→20°程度に小さくしてブレ
ードを立てることにより、低下した所の風速を上昇させ
て、中央部との流れの不均一を改善し、風量の増加を図
った。
Therefore, in the present invention, the blades (blades) 1 at the left and right ends of the cross flow fan fan whose wind speed is reduced.
The mounting angle at which the blades in the region a including the central blades (blades) 16 are mounted on the rotary shaft 1 in consideration of noise and the like, in consideration of noise and the like. By raising the blade by reducing the angle from about 23 ° to about 20 °, the wind speed at the lowered position was increased, the unevenness of the flow with the central portion was improved, and the airflow was increased.

【0013】ここで、一般に、回転軸1に架設する羽根
(ブレード)の取付角を中央部での取付角よりも小さく
する範囲の条件は、実験上、風速の変動が中央部の風速
のおよそ20%を越える範囲(領域b)の羽根(ブレー
ド)の取付角を中央部(領域a)の取付角に対して変更
することにより、実効性のある送風機全体の風量を得ら
れることが判明した。
Here, in general, the condition that the mounting angle of the blades (blades) installed on the rotating shaft 1 is smaller than the mounting angle at the center portion is determined by experiments that the fluctuation of the wind speed is approximately equal to the wind speed at the center portion. It has been found that by changing the mounting angle of the blade (blade) in the range (region b) exceeding 20% with respect to the mounting angle of the central portion (region a), an effective air volume of the entire blower can be obtained. .

【0014】[0014]

【発明の効果】以上のように本発明の送風機は、クロス
フローファンの回転軸方向に所定間隔で立設するファン
プレートの間に、回転軸に平行して周方向に複数の羽根
(ブレード)を架設しているタイプであって、クロスフ
ローファンの左右両端部の風速が中央部に比べて風速が
低下して送風機全体としては風量が低下するようなこと
があっても、中央部より風速が低下する所より側プレー
トまでに位置する羽根(ブレード)の取付角を中央部の
取付角よりも小さくすることにより、回転数あたりの風
量を増加させ、中央部との流れの不均一を改善して風量
の増加を図ることができる。
As described above, in the blower of the present invention, a plurality of blades (blades) are arranged circumferentially in parallel with the rotation axis between fan plates which are erected at predetermined intervals in the rotation axis direction of the cross flow fan. Even if the wind speed at the left and right ends of the cross flow fan is lower than that at the center and the overall air volume may be lower, the wind speed By reducing the mounting angle of the blades (blades) located from the point where the air pressure drops to the side plate to be smaller than the mounting angle at the center, the airflow per rotation speed is increased, and the unevenness of the flow with the center is improved. Thus, the air volume can be increased.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の送風機の概略構成図。FIG. 1 is a schematic configuration diagram of a blower of the present invention.

【図2】一般的な空気調和機の室内機の要部分解図。FIG. 2 is an exploded view of a main part of an indoor unit of a general air conditioner.

【符号の説明】[Explanation of symbols]

1 室内機本体 2 クロスフローファン 3 熱交換器 4 スクロールケーシング 5 整流板(リブ) 6 ファンモータ 7 軸受 8,9 取付部材 11 ファンの回転軸 12 左側プレート 13 右側プレート 14 ファンプレート 15,16,17 羽根(ブレード) DESCRIPTION OF SYMBOLS 1 Indoor unit main body 2 Cross flow fan 3 Heat exchanger 4 Scroll casing 5 Rectifier plate (rib) 6 Fan motor 7 Bearing 8,9 Mounting member 11 Fan rotation axis 12 Left side plate 13 Right side plate 14 Fan plate 15,16,17 Feather

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 一対の側プレートの間にファンプレート
を所定間隔で立設すると共に、上記各プレートの間に回
転軸に平行して周方向に複数の羽根(ブレード)を架設
してなる送風機において、中央部より風速が低下する所
より側プレートまでに位置する羽根(ブレード)の取付
角を中央部の取付角よりも小さくすることを特徴とする
送風機。
1. An air blower comprising a pair of side plates, wherein a fan plate is erected at a predetermined interval, and a plurality of blades are laid between said plates in a circumferential direction in parallel with a rotation axis. The blower according to any one of claims 1 to 3, wherein a mounting angle of a blade (blade) located from a position where a wind speed is lower than a central portion to a side plate is smaller than a mounting angle of the central portion.
【請求項2】 一対の側プレートの間にファンプレート
を所定間隔で立設すると共に、上記各プレートの間に回
転軸に平行して周方向に複数の羽根(ブレード)を架設
してなる送風機において、風速の変動が中央部の風速の
およそ20%を越える範囲の羽根(ブレード)の取付角
を中央部の取付角に対して変更することを特徴とする送
風機。
2. A blower having a fan plate erected at a predetermined interval between a pair of side plates, and a plurality of blades laid in a circumferential direction between said plates in parallel with a rotation axis. 3. The blower according to claim 1, wherein the angle of attachment of the blade is changed with respect to the angle of attachment of the central portion in a range where the variation of the wind speed exceeds approximately 20% of the wind speed of the central portion.
JP09390898A 1998-03-24 1998-03-24 Blower Expired - Fee Related JP3604899B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP09390898A JP3604899B2 (en) 1998-03-24 1998-03-24 Blower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP09390898A JP3604899B2 (en) 1998-03-24 1998-03-24 Blower

Publications (2)

Publication Number Publication Date
JPH11270871A true JPH11270871A (en) 1999-10-05
JP3604899B2 JP3604899B2 (en) 2004-12-22

Family

ID=14095588

Family Applications (1)

Application Number Title Priority Date Filing Date
JP09390898A Expired - Fee Related JP3604899B2 (en) 1998-03-24 1998-03-24 Blower

Country Status (1)

Country Link
JP (1) JP3604899B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015145190A (en) * 2014-02-04 2015-08-13 カルソニックカンセイ株式会社 Cross-flow fan device
JP2020204414A (en) * 2019-06-14 2020-12-24 日立ジョンソンコントロールズ空調株式会社 Air conditioner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015145190A (en) * 2014-02-04 2015-08-13 カルソニックカンセイ株式会社 Cross-flow fan device
JP2020204414A (en) * 2019-06-14 2020-12-24 日立ジョンソンコントロールズ空調株式会社 Air conditioner

Also Published As

Publication number Publication date
JP3604899B2 (en) 2004-12-22

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