JPH0820087B2 - Outdoor equipment for air conditioners - Google Patents
Outdoor equipment for air conditionersInfo
- Publication number
- JPH0820087B2 JPH0820087B2 JP5170390A JP5170390A JPH0820087B2 JP H0820087 B2 JPH0820087 B2 JP H0820087B2 JP 5170390 A JP5170390 A JP 5170390A JP 5170390 A JP5170390 A JP 5170390A JP H0820087 B2 JPH0820087 B2 JP H0820087B2
- Authority
- JP
- Japan
- Prior art keywords
- casing
- heat exchanger
- fan
- shroud
- hole
- 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.)
- Expired - Fee Related
Links
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、空気調和機の室外装置にかかり、特に、熱
交換効率を向上させた空気調和機の室外装置を提供する
ことにある。TECHNICAL FIELD The present invention relates to an outdoor device for an air conditioner, and particularly to provide an outdoor device for an air conditioner with improved heat exchange efficiency.
空気調和機の室外装置として、たとえば、実公昭59−
13575号公報に開示された室外装置が提案されている。
この室外装置は、送風ファンを囲うように筒状に熱交換
器を配設し、この熱交換器の上部開口部から内部に向け
て逆円錐状に絞られた円錐部と、この円錐部に連設され
若干上方へ折り返された円筒部とからなるオリフィスを
設けるとともに、オリフィスの開口部を覆うファンガー
ドを設けている。As an outdoor device for an air conditioner, for example, S.K.
The outdoor device disclosed in Japanese Patent No. 13575 has been proposed.
In this outdoor device, a heat exchanger is arranged in a tubular shape so as to surround a blower fan, and a conical portion narrowed in an inverted conical shape from the upper opening of the heat exchanger toward the inside and the conical portion An orifice composed of a cylindrical portion that is continuously provided and folded back slightly upward is provided, and a fan guard that covers the opening of the orifice is provided.
このような室外装置において、熱交換器の上部を通し
て室外装置に流入した空気は、オリフィスに沿って流
れ、ファンによって排出されので、熱交換器とオリフィ
スの間の空気の滞留を減らし、その従来の技術に比較し
て熱交換効率を向上させることができる。In such an outdoor device, the air that has flowed into the outdoor device through the upper part of the heat exchanger flows along the orifice and is discharged by the fan, so that the accumulation of air between the heat exchanger and the orifice is reduced, and The heat exchange efficiency can be improved as compared with the technology.
しかし、上記の室外装置においてもオリフィスの下端
部で空気の流れ方向を変えているため、渦流を発生させ
るため、流動抵抗が大きくなり空気の流量が減り熱交換
効率の向上に限界があった。However, even in the outdoor device described above, since the flow direction of air is changed at the lower end of the orifice, a swirl flow is generated, flow resistance increases, the flow rate of air decreases, and there is a limit to improvement of heat exchange efficiency.
また、冬期には、熱交換器と通る空気の流速が遅くな
ると、空気中の水分が熱交換器に結露して凍り、所謂着
霜が発生する。そして、着霜が発生すると、その周囲の
空気の流れが阻害されるため、着霜領域が拡大しさらに
空気の流れを悪くして、熱交換効率を低下させることに
なる。Further, in the winter, when the flow velocity of the air passing through the heat exchanger becomes slow, the moisture in the air is condensed on the heat exchanger and freezes, so-called frost formation occurs. When frost is formed, the flow of air around the frost is obstructed, so that the frost region is expanded and the air flow is further deteriorated, resulting in a decrease in heat exchange efficiency.
上記の事情に鑑み、本発明の目的は、熱交換器よりフ
ァンに流入する空気の渦流をさらに減少させ、所謂着霜
を防止して、熱交換効率をさらに向上させるようにした
空気調和機の室外装置を提供することにある。In view of the above circumstances, an object of the present invention is to further reduce the vortex flow of the air flowing into the fan from the heat exchanger, prevent so-called frost formation, and further improve the heat exchange efficiency. To provide an outdoor device.
上記の目的を達成するため、本発明においては、一側
面と上部に開口部が形成されたケーシングと、このケー
シングの側面の開口部を内部から覆うようにケーシング
の内部に配置された熱交換器と、前記ケーシングの上部
の開口部に設けられ、ケーシングの内部に向けて絞られ
た筒状部と、その下端に連設され筒状部の内周方向に若
干上方へ円弧状に折り返された折返部とが形成され、空
気の吹出口を形成するシュライドと、ファンの一部がシ
ュラウドの中に位置するように前記ケーシング内に配置
されたファン装置とを設けてなる空気調和機の室外装置
において、前記ケーシングの内側で、前記シュラウドの
筒状部の下端部と所定の空隙を形成するように配置さ
れ、前記熱交換器の上部を支持するとともに、前記ファ
ン装置を位置決め支持する支持枠を設け、この支持枠の
熱交換器の内面と対向する内方側壁に、前記空隙に近接
し、かつ前記空隙より熱交換器側に、ファンの軸心に向
けて開口する貫通穴を形成し、前記空隙と貫通穴でエゼ
クタを構成したものである。In order to achieve the above object, in the present invention, a casing having an opening formed on one side surface and an upper portion, and a heat exchanger arranged inside the casing so as to cover the opening portion on the side surface of the casing from the inside. And a cylindrical portion provided in an opening at the upper part of the casing and narrowed toward the inside of the casing, and continuously connected to the lower end of the cylindrical portion and folded back in an arc shape slightly upward in the inner circumferential direction of the cylindrical portion. An outdoor device for an air conditioner, which is provided with a shroud having a folded portion and forming an air outlet, and a fan device arranged inside the casing so that a part of the fan is located inside the shroud. In the inside of the casing, the shroud is arranged so as to form a predetermined gap with the lower end of the cylindrical portion of the shroud, supports the upper portion of the heat exchanger, and positions and supports the fan device. A support frame is provided, and a through hole that opens toward the axial center of the fan is provided on the inner side wall of the support frame facing the inner surface of the heat exchanger, close to the gap, and closer to the heat exchanger than the gap. Is formed, and an ejector is constituted by the void and the through hole.
さらに、前記シュラウドの折返部の底部に水抜き用の
穴を形成したものである。Further, a hole for draining water is formed at the bottom of the folded portion of the shroud.
熱交換器の支持枠で覆われる部分から流入した空気
は、貫通穴からファンに向けて流れ、ファンによって排
出される。このとき、熱交換器の上部に形成された空間
に滞留する空気は、エゼクタの作用により、貫通穴から
ファンに向けて流れる空気に引き出され、ファンによっ
て室外機の外部に排出される。The air that has flowed in from the portion of the heat exchanger that is covered by the support frame flows from the through hole toward the fan, and is discharged by the fan. At this time, the air staying in the space formed in the upper portion of the heat exchanger is drawn out by the action of the ejector into the air flowing toward the fan from the through hole, and is discharged to the outside of the outdoor unit by the fan.
また、前記シュラウドの折返部の底部に水抜き用の穴
を形成することにより、シュラウドの折返部の底部に水
が溜るのを防止し、つららなどの発生によるファンの損
傷を防止することができる。Further, by forming a hole for draining water at the bottom of the folded portion of the shroud, it is possible to prevent water from being collected at the bottom of the folded portion of the shroud, and prevent damage to the fan due to icicles and the like. .
以下、本発明の第１の実施例である空気調和機の室外
装置を第１図ないし第４図に基づいて説明する。An outdoor device for an air conditioner according to a first embodiment of the present invention will be described below with reference to FIGS. 1 to 4.
第１図は、空気調和機の室外装置の平面図。第２図
は、第１図のＡ−Ａ矢視断面図、第３図は、第２図のＢ
部の拡大断面図、第４図は、第２図のＣ部の拡大断面図
である。FIG. 1 is a plan view of an outdoor device of an air conditioner. 2 is a cross-sectional view taken along the line AA of FIG. 1, and FIG. 3 is B of FIG.
FIG. 4 is an enlarged cross-sectional view of the portion C, and FIG. 4 is an enlarged cross-sectional view of the portion C in FIG.
第１図および第２図に示すように、ケーシング１に
は、一側面と上面にそれぞれ開口部が形成されている。
熱交換器２は、ケーシング１の側面の開口部を覆うよう
にその内側に配置されている。機械室４およびリレー、
基板等の制御部品を収納する電気品箱５は、熱交換器２
と対向する側面に配置されている。As shown in FIGS. 1 and 2, the casing 1 has openings formed on one side surface and one upper surface, respectively.
The heat exchanger 2 is arranged inside the casing 1 so as to cover the side opening of the casing 1. Machine room 4 and relay,
The electrical component box 5 for storing control components such as a board is a heat exchanger 2
It is located on the side opposite to.
モータツケイタ３には、モータを取り付けるための穴
と、通風用の複数の穴3aが、第３図に示すように、前記
ケーシング１の上方に向けて突出するリング状の絞り加
工によって形成されている。支持枠10は、その上部が前
記熱交換器２の上部に嵌合するように下に向けて開口す
るコの字状に形成され、その内側が下方に向けて内方側
壁として延長されている。この支持枠10の上端面には、
通風用の穴10aが形成され、内方側壁には、通風用の貫
通穴10bが、第４図に示すように、前記ケーシング１の
内方に向けて突出するリング状の絞り加工によって形成
されている。そして、支持枠10の内方側壁の下端と前記
モータツケイタ３の一端が接続され、支持枠10とモータ
ツケイタ３は一体になっている。As shown in FIG. 3, a hole for mounting a motor and a plurality of holes 3a for ventilation are formed in the motor keeper 3 by a ring-shaped drawing process projecting upward of the casing 1. . The support frame 10 is formed in a U-shape that opens downward so that its upper portion fits into the upper portion of the heat exchanger 2, and its inside extends downward as an inner side wall. . On the upper end surface of this support frame 10,
A ventilation hole 10a is formed, and a ventilation through hole 10b is formed in the inner side wall by a ring-shaped drawing process projecting inward of the casing 1, as shown in FIG. ing. The lower end of the inner side wall of the support frame 10 and one end of the motor keeper 3 are connected, and the support frame 10 and the motor tuner 3 are integrated.
モータ６は、モータツケイタ３に固定支持されてい
る。ファン７は、モータ６の回転軸に固定され、モータ
６によって回転駆動される。このモータ６とファン７と
ファン装置８を構成している。The motor 6 is fixedly supported by the motor keeper 3. The fan 7 is fixed to the rotation shaft of the motor 6 and is rotationally driven by the motor 6. The motor 6, the fan 7, and the fan device 8 are configured.
シュラウド９は、ケーシング１の内方に向けて突出す
る筒部13と、この筒部13の下端を、筒部13の内側上方に
向かって円弧状に折り曲げた折返部13aが形成され、ケ
ーシング１の上端に筒部13がファン７の上部を囲うよう
に取り付けられ、吹出口を形成している。このシュラウ
ド９の外周には、シュラウド９の上面から下方に向けて
突出する側板11が一体に固定されている。この側板11に
は、支持板12が前記支持枠10および熱交換器２と接する
ように固定され、ケーシング１の内部と外部を仕切るよ
うになっている。The shroud 9 is formed with a tubular portion 13 projecting inward of the casing 1 and a folded-back portion 13a formed by bending a lower end of the tubular portion 13 upward inward of the tubular portion 13 in an arc shape. A cylindrical portion 13 is attached to the upper end of the fan so as to surround the upper portion of the fan 7 and forms an outlet. A side plate 11 protruding downward from the upper surface of the shroud 9 is integrally fixed to the outer periphery of the shroud 9. A support plate 12 is fixed to the side plate 11 so as to be in contact with the support frame 10 and the heat exchanger 2 so as to partition the inside and the outside of the casing 1.
そして、第４図に示すように、シュラウド９と支持枠
10および支持板12の間に空間9aが形成され、シュラウド
９の筒状部13の下端部と支持枠10の内方側壁の間に、前
記空間9aに連通する空隙9bが形成され、貫通穴10bと空
隙9bでエゼクタを構成している。Then, as shown in FIG. 4, the shroud 9 and the support frame are
A space 9a is formed between the support plate 12 and the support plate 12, and a space 9b communicating with the space 9a is formed between the lower end of the tubular portion 13 of the shroud 9 and the inner side wall of the support frame 10 to form a through hole. The ejector is composed of 10b and the void 9b.
このような構成であるから、モータ６を作動させ、フ
ァン７を回転駆動させると、ケーシング１の内部の空気
がシュラウド９で形成された吹出口から排出される。す
ると、ケーシング１の外部の空気が熱交換器２を通して
ケーシング１内に吸い込まれる。そして、モータツケイ
タ３より下方から吸い込まれた空気は、第２図に矢印Ｅ
で示すように、モータツケイタ３とケーシング１の間
と、モータツケイタ３に形成された穴3aを通りファン７
によって排気される。With such a configuration, when the motor 6 is operated and the fan 7 is rotationally driven, the air inside the casing 1 is discharged from the air outlet formed by the shroud 9. Then, the air outside the casing 1 is sucked into the casing 1 through the heat exchanger 2. Then, the air sucked from below the motor keeper 3 is indicated by an arrow E in FIG.
As shown by, the fan 7 is passed through between the motor charger 3 and the casing 1 and through the hole 3a formed in the motor charger 3.
Exhausted by.
また、モータツケイタ３より上方から吸い込まれた空
気は、その一部は、第４図に矢印Ｆで示すように、支持
枠10の内方側壁に形成された穴10bからファン７に向け
て流れ排気され、他の一部は、矢印Ｄで示すように、支
持枠10の上端面に形成された穴10aから空間9aに流入
し、空隙9bを通ってファン７に向けて流れ排気される。
この時、エゼクタによって空隙9bを通して空間9a内の空
気が吸い出されるため、熱交換器２を通った空気が空間
9a内に滞留することはない。In addition, a part of the air sucked from above the motor keeper 3 flows toward the fan 7 from the hole 10b formed in the inner side wall of the support frame 10 as shown by an arrow F in FIG. The other part flows into the space 9a through the hole 10a formed in the upper end surface of the support frame 10 as shown by the arrow D, flows through the space 9b toward the fan 7, and is exhausted.
At this time, the air in the space 9a is sucked out through the gap 9b by the ejector, so that the air passing through the heat exchanger 2 is discharged into the space.
It does not stay in 9a.
したがって、熱交換器２を通してケーシング１に吸い
込まれる空気の流れに滞留が発生することがなく、熱交
換器２の全面で熱交換が行われるため、熱交換効率を向
上させることができる。Therefore, since the flow of the air sucked into the casing 1 through the heat exchanger 2 does not accumulate and heat is exchanged over the entire surface of the heat exchanger 2, the heat exchange efficiency can be improved.
第５図は、本発明の他の実施例を示すものである。 FIG. 5 shows another embodiment of the present invention.
第５図において、シュラウド９の筒部13に形成された
折返部13aの底部には、水抜き用の穴17が形成されてい
る。In FIG. 5, a water drainage hole 17 is formed in the bottom of the folded-back portion 13a formed in the cylindrical portion 13 of the shroud 9.
このように、シュラウド９の折返部13aに水抜き用の
穴17を形成することにより、シュラウド９の折返部13a
に雨水などが溜るのを防止することができる。また、冬
期などにおいては、折返部13aに溜った水、あるいは折
返部13aから溢れ出した水が、熱交換器を通り冷却され
た空気と接触して折返部13a内で氷結したり、つららの
ように氷結してファンと接触するのを防止することがで
き、ファンの損傷を防止することができる。In this way, by forming the hole 17 for draining water in the folded portion 13a of the shroud 9, the folded portion 13a of the shroud 9 is formed.
It is possible to prevent rainwater and the like from collecting on the inside. In addition, in the winter season, the water accumulated in the folding part 13a or the water overflowing from the folding part 13a comes into contact with the cooled air passing through the heat exchanger and freezes in the folding part 13a, or icicles. Thus, it is possible to prevent the ice from coming into contact with the fan and prevent damage to the fan.
以上述べたごとく、本発明によれば、一側面と上部に
開口部が形成されたケーシングと、このケーシングの側
面に形成された開口部を内部から覆うようにケーシング
の内部に配置された熱交換器と、前記ケーシングの上部
に形成された開口部に設けられ、ケーシングの内部に向
けて絞られた筒状部と、その下端に連設され筒状部の内
周方向に若干上方へ円弧状に折り返された折返部とが形
成され、空気の吹出口を形成するシュラウドと、ファン
の一部がシュラウドの中に位置するように前記ケーシン
グ内に配置されたファン装置とを設けてなる空気調和機
の室外装置において、前記ケーシング内側で、前記シュ
ラウドの筒状部の下端部と所定の空隙を形成するように
配置され、前記熱交換器の上部を支持するとともに、前
記ファン装置を位置決め支持する支持枠を設け、この支
持枠の熱交換器の内面と対向する内方側壁に、前記空隙
に近接し、かつ前記空隙より熱交換器側に、ファンの軸
心に向けて開口する貫通穴を形成し、エゼクタを構成す
るようにしたので、滞留しやすい熱交換器の固定部の空
間の空気の流れをよくし、着霜を防止することができ、
かつ、熱交換効率を向上させることができる。As described above, according to the present invention, the casing having the opening formed on the one side surface and the upper portion, and the heat exchange arranged inside the casing so as to cover the opening formed on the side surface of the casing from the inside. And a tubular portion provided in an opening formed in the upper portion of the casing and narrowed toward the inside of the casing, and an arc shape that is provided continuously to the lower end of the tubular portion and is slightly upward in the inner circumferential direction of the tubular portion. An air conditioner that includes a shroud that forms an air outlet and a fan device that is disposed inside the casing so that a part of the fan is located inside the shroud. In the outdoor device of the machine, the fan device is arranged inside the casing so as to form a predetermined gap with the lower end of the tubular portion of the shroud, supports the upper part of the heat exchanger, and positions the fan device. A support frame for supporting the heat exchanger is provided, and an inner side wall of the support frame that faces the inner surface of the heat exchanger is opened toward the axial center of the fan, close to the gap, and closer to the heat exchanger than the gap. Since the through hole is formed to configure the ejector, it is possible to improve the air flow in the space of the fixed portion of the heat exchanger that easily stays, and prevent frost formation.
Moreover, the heat exchange efficiency can be improved.
また、前記シュラウドの折返部の底部に水抜き用の穴
を形成することにより、シュラウドの折返部の底部に水
が溜るのを防止し、つららなどの発生によるファンの損
傷を防止することができる。Further, by forming a hole for draining water at the bottom of the folded portion of the shroud, it is possible to prevent water from being collected at the bottom of the folded portion of the shroud, and prevent damage to the fan due to icicles and the like. .
第１図は、本発明による空気調和機の室外機の平面図、
第２図は、第１図のＡ−Ａ矢視断面図、第３図は、第２
図のＢ部の拡大図、第４図は、第２図のＣ部の拡大断面
図、第５図は、本発明の他の実施例におけるシュラウド
の説明図である。 １……ケーシング、２……熱交換器、７……ファン ８……ファン装置、９……シュラウド、9b……空隙 10……支持枠、10b……貫通穴FIG. 1 is a plan view of an outdoor unit of an air conditioner according to the present invention,
2 is a sectional view taken along the line AA of FIG. 1, and FIG.
FIG. 4 is an enlarged view of portion B in the figure, FIG. 4 is an enlarged sectional view of portion C in FIG. 2, and FIG. 5 is an explanatory view of a shroud in another embodiment of the present invention. 1 ... Casing, 2 ... Heat exchanger, 7 ... Fan 8 ... Fan device, 9 ... Shroud, 9b ... Air gap 10 ... Support frame, 10b ... Through hole
───────────────────────────────────────────────────── フロントページの続き (72)発明者 下出 新一 茨城県土浦市神立町502番地 株式会社日 立製作所機械研究所内 (56)参考文献 実公 昭59−13575（ＪＰ，Ｙ２) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinichi Shimode 502, Kazunachi-cho, Tsuchiura-shi, Ibaraki Machinery Research Laboratory, Hiritsu Manufacturing Co., Ltd. (56) References
Claims (2)
ングと、このケーシングの側面の開口部を内部から覆う
ようにケーシングの内部に配置された熱交換器と、前記
ケーシングの上部の開口部に設けられ、ケーシングの内
部に向けて絞られた筒状部と、その下端に連設され筒状
部の内周方向に若干上方へ円弧状に折り返された折返部
とが形成され、空気の吹出口を形成するシュラウドと、
ファンの一部がシュラウドの折返部の中に位置するよう
に前記ケーシング内に配置されたファン装置とを設けて
なる空気調和機の室外装置において、前記ケーシングの
内側で、前記シュラウドの筒状部の下端部と所定の空隙
を形成するように配置され、前記熱交換器の上部を支持
するとともに、前記ファン装置を位置決め支持する支持
枠を設け、この支持枠の熱交換器の内面と対向する内方
側壁に、前記空隙に近接し、かつ前記空隙より熱交換器
側に、ファンの軸心に向けて開口する貫通穴を形成し、
前記空隙と貫通穴でエゼクタを構成したことを特徴とす
る空気調和機の室外装置。1. A casing having an opening formed on one side surface and an upper portion, a heat exchanger arranged inside the casing so as to cover the opening portion on the side surface of the casing from the inside, and an opening at the upper portion of the casing. A cylindrical portion that is provided in the casing and is squeezed toward the inside of the casing, and a folded portion that is connected to the lower end of the cylindrical portion and is folded back in an arc shape slightly upward in the inner circumferential direction of the cylindrical portion. A shroud that forms the outlet of
An outdoor device for an air conditioner, comprising: a fan device arranged in the casing so that a part of the fan is located in a folded portion of the shroud; and a tubular portion of the shroud inside the casing. Is provided so as to form a predetermined gap with the lower end of the heat exchanger, and a support frame for supporting the upper portion of the heat exchanger and positioning and supporting the fan device is provided, and the support frame faces the inner surface of the heat exchanger. On the inner side wall, a through hole that is close to the air gap and is closer to the heat exchanger than the air gap and that opens toward the axial center of the fan is formed.
An outdoor device for an air conditioner, characterized in that an ejector is constituted by the void and the through hole.
の穴を形成したことを特徴とする請求項１に記載の空気
調和機の室外装置。2. The outdoor unit for an air conditioner according to claim 1, wherein a hole for draining water is formed at the bottom of the folded portion of the shroud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5170390A JPH0820087B2 (en) | 1990-03-05 | 1990-03-05 | Outdoor equipment for air conditioners |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5170390A JPH0820087B2 (en) | 1990-03-05 | 1990-03-05 | Outdoor equipment for air conditioners |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03255828A JPH03255828A (en) | 1991-11-14 |
| JPH0820087B2 true JPH0820087B2 (en) | 1996-03-04 |
Family
ID=12894255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5170390A Expired - Fee Related JPH0820087B2 (en) | 1990-03-05 | 1990-03-05 | Outdoor equipment for air conditioners |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0820087B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001033066A (en) * | 1999-07-19 | 2001-02-09 | Fujitsu General Ltd | Outdoor unit for air conditioner |
| JP3985840B2 (en) * | 2005-11-01 | 2007-10-03 | ダイキン工業株式会社 | Air conditioner outdoor unit |
| JP5402987B2 (en) * | 2011-05-20 | 2014-01-29 | ダイキン工業株式会社 | Refrigeration unit outdoor unit |
| JP6379062B2 (en) * | 2015-03-17 | 2018-08-22 | 日立ジョンソンコントロールズ空調株式会社 | Outdoor unit of air conditioner and bell mouth provided therein |
| JPWO2017145253A1 (en) * | 2016-02-23 | 2018-09-13 | 三菱電機株式会社 | Air conditioner |
-
1990
- 1990-03-05 JP JP5170390A patent/JPH0820087B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03255828A (en) | 1991-11-14 |
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