JP2010060217A - Heat source unit - Google Patents

Heat source unit Download PDF

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JP2010060217A
JP2010060217A JP2008227148A JP2008227148A JP2010060217A JP 2010060217 A JP2010060217 A JP 2010060217A JP 2008227148 A JP2008227148 A JP 2008227148A JP 2008227148 A JP2008227148 A JP 2008227148A JP 2010060217 A JP2010060217 A JP 2010060217A
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heat source
source unit
fan
facing
fan guard
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Hiromasa Yamane
宏昌 山根
Yoshiro Nakamura
芳郎 中村
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Toshiba Carrier Corp
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Toshiba Carrier Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a safe heat source unit capable of reducing a casing size. <P>SOLUTION: The heat source unit is equipped with an axial fan blower comprised by plurally providing blades with blade rear rim parts in an outflow direction of air of an axial fan formed in arced recessed shapes recessed in a blade front rim direction, and a fan guard installed in an air outflow side of the axial fan. The fan guard has a plurality of openings, and in the opening, an area of a portion facing a recessed part of the blade rear rim part is formed larger than an area of a portion not facing the recessed part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は熱源ユニットに係り、特にファンガードの構造を改良した熱源ユニットに関する。   The present invention relates to a heat source unit, and more particularly to a heat source unit having an improved fan guard structure.

一般に空気調和装置の室外機等の熱源ユニットは、室外側熱交換器と、送風機と、この送風機の空気流出側に設置されるファンガードとを備え、送風機により室外側熱交換器に送風している（例えば、特許文献１参照）。   Generally, a heat source unit such as an outdoor unit of an air conditioner includes an outdoor heat exchanger, a blower, and a fan guard installed on the air outflow side of the blower, and sends air to the outdoor heat exchanger by the blower. (For example, refer to Patent Document 1).

特許文献１に記載の室外機は、空気吸込口を備えた立形直方体形状の室外機本体に収容された送風機と、この送風機の空気流出側に設置され、空気吹出口を覆うようにベルマウスを介して室外機本体に取付けられたファンガードを備えている。   An outdoor unit described in Patent Document 1 is a bell mouth that is installed on an air outlet side of a blower housed in a vertical rectangular parallelepiped outdoor unit body having an air suction port and covers the air outlet. A fan guard attached to the outdoor unit main body is provided.

従来のファンガードは、金属製ワイヤにより形成されており、その中心付近から半径方向外側に向かって渦巻き状に形成される渦巻状線部と、中心から半径方向外側に向かって放射状に形成される放射状線部とで構成されている。   A conventional fan guard is formed of a metal wire, and is formed in a spiral line portion formed in a spiral shape from the vicinity of the center toward the outside in the radial direction and radially from the center in the radially outward direction. It consists of radial lines.

そして、従来のファンガードは安全を考慮して、隣接する渦巻状線部同士の間隔を人の指などが入らない程度に狭くしている。しかしながら、このように、渦巻状線部同士の間隔を狭くする構造では、送風機としては抵抗が大きく、送風機の回転数が大きくなり、送風騒音値が大きくなる問題があった。   In the conventional fan guard, in consideration of safety, the interval between the adjacent spiral line portions is narrowed so that a human finger or the like cannot enter. However, in such a structure in which the space between the spiral wire portions is narrowed, there is a problem that resistance as the blower is large, the rotation speed of the blower is increased, and the blowing noise value is increased.

また、安全を考慮して、ファンガードと送風機の翼との距離を十分にとった室外機も提案されて、さらに、送風量を増すために、ファンガードを放射状に大きくすることが提案されているが、いずれも室外機筐体のサイズが大きくなる問題があった。
特開２００４−３１７０５３号公報 In consideration of safety, an outdoor unit having a sufficient distance between the fan guard and the blades of the blower is also proposed, and further, the fan guard is proposed to be increased radially in order to increase the amount of air blown. However, there is a problem that the size of the outdoor unit casing increases.
JP 2004-317053 A

本発明は上述した事情を考慮してなされたもので、安全かつ筐体サイズを小さくできる熱源ユニットを提供することを目的とする。   The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a heat source unit that is safe and can be reduced in size.

上述した目的を達成するため、本発明に係る熱源ユニットは、翼後縁部が、翼前縁部方向に円弧状に凹陥して形成された翼を複数枚設けてなりかつ、回転にともなって軸方向に送風する軸流ファン送風機と、この軸流ファンの空気流出側に設置されるファンガードとを備え、前記ファンガードは複数の開口部を有し、この開口部の前記翼後縁部凹陥部に対向する部位の面積は、前記凹陥部に対向しない部位の面積より大きくしたことを特徴とする。   In order to achieve the above-described object, the heat source unit according to the present invention is provided with a plurality of blades each having a blade trailing edge that is recessed in an arc shape in the direction of the blade leading edge. An axial fan fan that blows air in an axial direction, and a fan guard installed on the air outflow side of the axial fan, the fan guard has a plurality of openings, and the blade trailing edge of the opening The area of the part facing the recessed part is larger than the area of the part not facing the recessed part.

本発明の熱源ユニットによれば、安全かつ筐体サイズを小さくできる。   According to the heat source unit of the present invention, the housing size can be reduced safely.

本発明の一実施形態に係る熱源ユニットについて図面を参照して説明する。   A heat source unit according to an embodiment of the present invention will be described with reference to the drawings.

なお、空気調和装置の室外機の例で説明する。   In addition, it demonstrates by the example of the outdoor unit of an air conditioning apparatus.

図１は本発明の一実施形態に係る空気調和装置の室外機の斜視図であり、図２は空気調和装置の室外機の概念図であり、図３は空気調和装置の室外機に用いるファンガードの平面図である。   FIG. 1 is a perspective view of an outdoor unit of an air conditioner according to an embodiment of the present invention, FIG. 2 is a conceptual diagram of the outdoor unit of the air conditioner, and FIG. 3 is a fan used for the outdoor unit of the air conditioner. It is a top view of a guard.

図１に示すように、本発明の一実施形態に係る熱源ユニット１（以下、室外機１）は、空気調和装置の室内機と冷媒配管を介して接続され、さらに、室外機本体２には室外機構成要素が収容される。   As shown in FIG. 1, a heat source unit 1 (hereinafter referred to as an “outdoor unit 1”) according to an embodiment of the present invention is connected to an indoor unit of an air conditioner through a refrigerant pipe. An outdoor unit component is accommodated.

また、室外機本体２には、周囲に空気吸込口３、上部に空気吹出口５が設けられる。空気吸込口３と対向して室外機本体２内側に室外熱交換器４が配置され、室外熱交換器３の上方に軸流ファン送風機６が配置される。軸流ファン送風機６の空気流出側に空気吹出口５を構成するベルマウス８が配置され、空気吹出口５および軸流ファン送風機６を覆うように、ファンガード７が取付けられる。   In addition, the outdoor unit body 2 is provided with an air suction port 3 in the periphery and an air outlet 5 in the upper part. The outdoor heat exchanger 4 is arranged inside the outdoor unit main body 2 so as to face the air suction port 3, and the axial fan blower 6 is arranged above the outdoor heat exchanger 3. A bell mouth 8 constituting the air outlet 5 is disposed on the air outflow side of the axial fan blower 6, and a fan guard 7 is attached so as to cover the air outlet 5 and the axial fan fan 6.

図２に示すように、軸流ファン送風機６は、ベルマウス８に周囲を囲われる軸流ファン１１と、この軸流ファン１１を回転させるファンモータ１２を備える。   As shown in FIG. 2, the axial fan blower 6 includes an axial fan 11 surrounded by a bell mouth 8 and a fan motor 12 that rotates the axial fan 11.

軸流ファン１１はボスハブ１３に取り付けられた複数枚の翼１４を備え、この翼１４はそれぞれ空気の流出方向にある翼後縁部１４ａと、空気の導入方向にある翼前縁部１４ｂと、外周を形成する翼外周部１４ｃが形成される。翼後縁部１４ａは、空気の流出方向とは反対の導入方向に距離Ｄ０だけ凹陥して構成された円弧状の凹陥部Ｌが形成される。 The axial fan 11 includes a plurality of blades 14 attached to a boss hub 13, and each of the blades 14 has a blade trailing edge portion 14a in the air outflow direction, a blade leading edge portion 14b in the air introduction direction, A blade outer peripheral portion 14c that forms the outer periphery is formed. Trailing edge portion 14a is recessed portion L of the opposing introduction direction by a distance D 0 recessed to configured arcuate is formed from the outflow direction of the air.

従って、ファンガード７と翼後縁部１４ａの凹陥部Ｌとの間の距離Ｄは、ファンガード７から翼外周部１４ｃの翼後縁端部１４ｄとの距離Ｄ１とＤ０との和になる。なお、この距離Ｄを従来はベルマウスの高さのみで形成していたので、ベルマウスの高さが高くなっていた。 Therefore, the distance D between the recessed portion L of the fan guard 7 and the wing trailing edge portion 14a from the fan guard 7 to the sum of the distances D 1 and D 0 of the blade trailing edge portion 14d of the blade outer peripheral part 14c Become. Since the distance D is conventionally formed only by the height of the bell mouth, the height of the bell mouth is high.

一方、図２および図３に示すように、ファンガード７は、金属製ワイヤにより形成されており、円形状の取付板１５に放射状に取り付けられる複数の放射状部材１６と、同心円状に設けられる複数の同心円状部材１７との組み合わせからなり、複数の開口部１８が形成され、この開口部１８のうち、翼後縁部１４ａの凹陥部Ｌに対向する部位７ａの大開口部１８ａの面積は、翼後縁部１４ａの凹陥部Ｌに対向しない部位７ｂの小開口部１８ｂの面積より大きく形成される。   On the other hand, as shown in FIGS. 2 and 3, the fan guard 7 is formed of a metal wire, and a plurality of radial members 16 that are radially attached to the circular attachment plate 15 and a plurality of concentric circles. A plurality of openings 18 are formed, and the area of the large opening 18a of the portion 7a facing the recessed portion L of the blade trailing edge 14a is as follows. It is formed larger than the area of the small opening 18b of the portion 7b that does not face the recessed portion L of the blade trailing edge portion 14a.

例えば、翼後縁部１４ａの凹陥部Ｌに対向する部位では、同心円状部材１７同士の間隔ｐ１が、翼後縁部１４ａの凹陥部Ｌに対向しない部位での同心円状部材１７同士の間隔ｐ２より広くなっており、間隔ｐ１の部位に大開口部１８ａが形成され、間隔ｐ２の部位に小開口部１８ｂが形成される。 For example, in a position facing the recessed portion L of the blade trailing edge 14a, spacing p 1 between the concentric member 17, concentric member 17 spacing between at sites not facing the recess L of the wing trailing edge portion 14a and wider than p 2, the large opening 18a is formed at a portion of the spacing p 1, the small opening 18b is formed at a portion of the spacing p 2.

小開口部１８ｂの面積あるいは間隔ｐ２は指ｆが入らない大きさにするのが好ましい。 Area or distance p 2 of the small opening portion 18b is preferably sized to keep out fingers f.

翼１４の翼後縁部１４ａを形成するとともに、ファンガード７は、翼後縁部１４ａの凹陥部Ｌに対向する部位では、同心円状部材１７同士の間隔ｐ１が広く形成されているので、ファンガード７による通風抵抗を小さくでき、大風量が得られ、さらに、翼後縁部１４ａの凹陥部Ｌを形成することにより、安全規格で規定された距離Ｄが確保され、例え広く形成された間隔ｐ１から指が挿入されても、翼１４に指が触れず、安全である。 To form the trailing edge portion 14a of the blade 14, the fan guard 7 is in a position facing the recessed portion L of the blade trailing edge 14a, the spacing p 1 between the concentric member 17 is formed wider, Ventilation resistance by the fan guard 7 can be reduced, a large air volume can be obtained, and further, by forming the recessed portion L of the blade trailing edge portion 14a, the distance D defined by the safety standard is ensured, for example, widely formed. be inserted finger from the interval p 1, finger without touching the blade 14, it is safe.

また、ファンガード７と翼１４の間の距離を短くすることが可能になり、ベルマウス８を従来に比べて低くでき、室外機本体３の小型化が図れる。   Further, the distance between the fan guard 7 and the wings 14 can be shortened, the bell mouth 8 can be made lower than the conventional one, and the outdoor unit body 3 can be downsized.

さらに、翼後縁部１４ａの凹陥部Ｌに対向しない部位での同心円状部材１７同士の間隔ｐ２は狭く形成されるので、間隔ｐ２から指が挿入できず、翼１４に指が触れることがなく安全である。 Further, since the concentric member 17 spacing p 2 between at sites not facing the recess L of the wing trailing edge portion 14a is formed narrow, can not be inserted the finger from the interval p 2, the fingers touch the wings 14 There is no safety.

なお、本実施形態では、空気調和装置の室外機を例にとり説明したが、ヒートポンプ型給湯装置の熱源ユニットなど種々の装置に使用でき、その効果を期待できる。   In the present embodiment, the outdoor unit of the air conditioner has been described as an example. However, the present invention can be used for various devices such as a heat source unit of a heat pump type hot water supply device, and the effect can be expected.

本実施形態の熱源ユニットによれば、安全かつ筐体サイズを小さくできる熱源ユニットが実現される。   According to the heat source unit of the present embodiment, a heat source unit that can be made safe and the housing size can be reduced is realized.

本発明の一実施形態の空気調和装置の室外機の斜視図。The perspective view of the outdoor unit of the air conditioning apparatus of one Embodiment of this invention. 本発明の一実施形態の空気調和装置の室外機に用いる送風ユニット部分の概念図。The conceptual diagram of the ventilation unit part used for the outdoor unit of the air conditioning apparatus of one Embodiment of this invention. 本発明の一実施形態の熱源ユニットに用いるファンガードの平面図。The top view of the fan guard used for the heat-source unit of one Embodiment of this invention.

符号の説明Explanation of symbols

１…熱源ユニット（室外機）、２…室外機本体、３…空気吸込口、４…室外熱交換器、５…空気吹出口、６…軸流ファン送風機、７…ファンガード、７ａ…部位、７ｂ…部位、８…ベルマウス、１４…翼、１４ａ…翼後縁部、１４ｂ…翼前縁部、１４ｃ…翼外周部、１４ｄ…翼外周部の翼後縁端、１６…放射状部材、１７…同心円状部材、１８…開口部、１８ａ…大開口部、１８ｂ…小開口部、Ｌ…凹陥部、Ｄ０…距離、Ｄ１…距離、Ｄ…距離、ｐ１…間隔、ｐ２…間隔。 DESCRIPTION OF SYMBOLS 1 ... Heat source unit (outdoor unit), 2 ... Outdoor unit main body, 3 ... Air suction port, 4 ... Outdoor heat exchanger, 5 ... Air outlet, 6 ... Axial fan fan, 7 ... Fan guard, 7a ... Site, 7b ... part, 8 ... bell mouth, 14 ... wing, 14a ... wing trailing edge, 14b ... wing leading edge, 14c ... wing outer periphery, 14d ... wing trailing edge of wing outer periphery, 16 ... radial member, 17 ... Concentric member, 18 ... Opening, 18a ... Large opening, 18b ... Small opening, L ... Recessed part, D 0 ... Distance, D 1 ... Distance, D ... Distance, p 1 ... Spacing, p 2 ... Spacing .

Claims (3)

翼後縁部が、翼前縁部方向に円弧状に凹陥して形成された翼を複数枚設けてなりかつ、
回転にともなって軸方向に送風する軸流ファン送風機と、
この軸流ファンの空気流出側に設置されるファンガードとを備え、
前記ファンガードは複数の開口部を有し、この開口部の前記翼後縁部凹陥部に対向する部位の面積は、前記凹陥部に対向しない部位の面積より大きくしたことを特徴とする熱源ユニット。 The wing trailing edge is provided with a plurality of wings formed in a circular arc shape in the wing leading edge direction, and
An axial fan that blows in the axial direction as it rotates,
With a fan guard installed on the air outflow side of this axial fan,
The fan guard has a plurality of openings, and an area of a portion of the opening facing the blade trailing edge recessed portion is larger than an area of the portion not facing the recessed portion. . 前記ファンガードは、放射状に設けられる複数の放射状部材と、同心円状に設けられる複数の同心円状部材との組み合わせで形成されるとともに、
前記凹陥部に対向する部位では、前記同心円状部材同士の間隔が、前記凹陥部に対向しない部位での前記同心円状部材同士の間隔より広いことを特徴とする請求項１に記載の熱源ユニット。 The fan guard is formed by a combination of a plurality of radial members provided radially and a plurality of concentric members provided concentrically.
2. The heat source unit according to claim 1, wherein in the portion facing the recessed portion, the interval between the concentric members is wider than the interval between the concentric members in a portion not facing the recessed portion. 前記凹陥部に対向しない部位の面積あるいは前記同心円状部材同士の間隔は、指が入らない大きさであることを特徴とする請求項１または２に記載の熱源ユニット。 3. The heat source unit according to claim 1, wherein an area of a portion that does not face the recessed portion or an interval between the concentric members is a size that a finger cannot enter.
JP2008227148A 2008-09-04 2008-09-04 Heat source unit Pending JP2010060217A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014017188A1 (en) * 2012-07-26 2014-01-30 ダイキン工業株式会社 Air conditioner
WO2016067722A1 (en) * 2014-10-30 2016-05-06 シャープ株式会社 Ion generator
EP3705732A1 (en) * 2019-03-08 2020-09-09 Daikin Industries, Ltd. Outdoor unit for a heat pump having a grille

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014017188A1 (en) * 2012-07-26 2014-01-30 ダイキン工業株式会社 Air conditioner
JP2014025630A (en) * 2012-07-26 2014-02-06 Daikin Ind Ltd Air conditioner
CN104487775A (en) * 2012-07-26 2015-04-01 大金工业株式会社 Air conditioner
CN104487775B (en) * 2012-07-26 2016-05-18 大金工业株式会社 Air conditioner
WO2016067722A1 (en) * 2014-10-30 2016-05-06 シャープ株式会社 Ion generator
EP3705732A1 (en) * 2019-03-08 2020-09-09 Daikin Industries, Ltd. Outdoor unit for a heat pump having a grille
WO2020184494A1 (en) * 2019-03-08 2020-09-17 Daikin Industries, Ltd. Outdoor unit for a heat pump having a grille with openings of differents dimensions

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