JP2013044457A - Outdoor unit for air conditioner - Google Patents
Outdoor unit for air conditioner Download PDFInfo
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- JP2013044457A JP2013044457A JP2011181233A JP2011181233A JP2013044457A JP 2013044457 A JP2013044457 A JP 2013044457A JP 2011181233 A JP2011181233 A JP 2011181233A JP 2011181233 A JP2011181233 A JP 2011181233A JP 2013044457 A JP2013044457 A JP 2013044457A
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Abstract
Description
本発明は、空気調和機の室外機に関する。 The present invention relates to an outdoor unit of an air conditioner.
従来、空気調和機の室外機として、前面グリルおよびそれを構成する螺旋状の桟の断面形状において、空気抵抗の小さい形状となるように連続的に断面形状が変化するように構成している(例えば、特許文献1参照)。 Conventionally, as an outdoor unit of an air conditioner, the cross-sectional shape of the front grille and the spiral crosspieces constituting the front grille is configured so that the cross-sectional shape continuously changes so as to have a shape with low air resistance ( For example, see Patent Document 1).
このように前面グリルを構成する桟形状を望ましい形状とすることにより、空気の流れの剥離を抑えることで静音化を行い、それに伴い可能となる高風量化による能力向上を実現し、また同時にガード効果、桟の取付け強度、サービス性、高い意匠性を確保することができる。 In this way, by making the shape of the crosspieces that make up the front grille desirable, it is possible to reduce noise by suppressing separation of air flow, and at the same time, increase the capacity by increasing the air volume that can be achieved, and at the same time guard It is possible to ensure the effect, the strength of attaching the crosspiece, serviceability, and high designability.
しかしながら、従来の構成では前面グリルの桟形状の改良によって空気抵抗を抑えているものの、まだ改善の余地があるという課題を有していた。 However, in the conventional configuration, although the air resistance is suppressed by improving the shape of the crosspiece of the front grille, there is still a problem that there is still room for improvement.
本発明は、前記従来の課題を解決するもので、前面グリル桟形状および配置の改善により送風性能の向上を実現した空気調和機の室外機を提供することを目的とする。 SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide an outdoor unit of an air conditioner that achieves improved air blowing performance by improving the shape and arrangement of a front grill bar.
前記従来の課題を解決するために本発明は、大気と冷媒とが熱交換を行う室外熱交換器と、室外熱交換器での熱交換を促進する室外ファンと、室外ファンの前面に設けられた前面グリルとを備え、前面グリルは、前面グリルの中心から径方向に放射状に延びる縦桟と、縦桟に略垂直に交わるように中心から径方向に円形状に複数設けられている横桟とで構成され、隣り合う横桟のピッチは室外ファンの正面方向の投影面よりも外側で大きくなることにより、前面グリルにおける空気抵抗による損失を抑えることで送風性能を向上させることができる。 In order to solve the above-described conventional problems, the present invention is provided in an outdoor heat exchanger that exchanges heat between the atmosphere and a refrigerant, an outdoor fan that promotes heat exchange in the outdoor heat exchanger, and a front surface of the outdoor fan. The front grille includes a vertical rail extending radially from the center of the front grille and a plurality of horizontal rails provided in a circular shape in the radial direction from the center so as to intersect the vertical rail substantially perpendicularly. The pitch between adjacent horizontal rails is larger on the outer side than the projection surface in the front direction of the outdoor fan, so that the air blowing performance can be improved by suppressing loss due to air resistance in the front grille.
本発明は、送風性能を向上させた空気調和機の室外機を提供することができる。 The present invention can provide an outdoor unit of an air conditioner with improved air blowing performance.
第1の発明の空気調和機の室外機は、大気と冷媒とが熱交換を行う室外熱交換器と、室外熱交換器での熱交換を促進する室外ファンと、室外ファンの前面に設けられた前面グリ
ルとを備え、前面グリルは、前面グリルの中心から径方向に放射状に延びる縦桟と、縦桟に略垂直に交わるように中心から径方向に円形状に複数設けられている横桟とで構成され、隣り合う横桟のピッチは室外ファンの正面方向の投影面よりも外側で大きくなることにより、前面グリルにおける空気抵抗による損失を抑えることで送風性能を向上させることができる。
An outdoor unit of an air conditioner according to a first aspect of the present invention is provided on an outdoor heat exchanger that exchanges heat between the atmosphere and a refrigerant, an outdoor fan that promotes heat exchange in the outdoor heat exchanger, and a front surface of the outdoor fan. The front grille includes a vertical rail extending radially from the center of the front grille and a plurality of horizontal rails provided in a circular shape in the radial direction from the center so as to intersect the vertical rail substantially perpendicularly. The pitch between adjacent horizontal rails is larger on the outer side than the projection surface in the front direction of the outdoor fan, so that the air blowing performance can be improved by suppressing loss due to air resistance in the front grille.
第2の発明の空気調和機の室外機は、特に第1の発明において、隣り合う横桟のピッチは、外側に行くにつれて徐々に拡大することにより、さらに横桟による通風抵抗を低減することができ、送風性能を向上させることができる。 In the outdoor unit of the air conditioner of the second invention, particularly in the first invention, the pitch of the adjacent horizontal rails gradually increases toward the outside, so that the ventilation resistance due to the horizontal rails can be further reduced. And the air blowing performance can be improved.
第3の発明の空気調和機の室外機は、特に第1または第2の発明において、縦桟の傾斜角度は、中心から外側に行くにつれて徐々に大きくすることにより、さらに縦桟による通風抵抗を低減することができ、送風性能を向上させることができる。 In the outdoor unit of the air conditioner of the third invention, particularly in the first or second invention, the inclination angle of the vertical beam is gradually increased from the center toward the outside, so that the ventilation resistance by the vertical beam is further increased. It can reduce, and ventilation performance can be improved.
第4の発明の空気調和機の室外機は、特に第1から第3の発明において、縦桟は非連続的に中心から径方向に放射状に延びることにより、縦桟の傾斜角度をつける加工がしやすくなる。 In the outdoor unit of the air conditioner according to the fourth aspect of the invention, in particular, in the first to third aspects of the invention, the vertical beam is discontinuously extended radially from the center in the radial direction so that the vertical beam is inclined. It becomes easy to do.
以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.
(実施の形態1)
図1は、本発明の実施の形態1における空気調和機の室外機の概略図を示すものである。図1において、室外機は、室外ファン1と、その前面に設けられた前面グリル2、室外ファンと1と前面グリルとの間にベルマウス3、大気と冷媒とが熱交換を行う室外熱交換器4とを備えている。なお、室内に設置される室内機を別途有しており、室外機と室内機とが冷媒管で接続されて空気調和機を構成している。また、図1には図示していないが、圧縮機等の機械室を備えていることは言うまでもない。
(Embodiment 1)
FIG. 1 shows a schematic diagram of an outdoor unit of an air conditioner according to Embodiment 1 of the present invention. In FIG. 1, an outdoor unit includes an outdoor fan 1, a front grill 2 provided in front of the outdoor fan, a bell mouth 3 between the outdoor fan 1 and the front grill, and an outdoor heat exchange in which air and refrigerant exchange heat. And 4. In addition, it has an indoor unit installed indoors, and the outdoor unit and the indoor unit are connected by a refrigerant pipe to constitute an air conditioner. Further, although not shown in FIG. 1, it goes without saying that a machine room such as a compressor is provided.
まず、室外ファン1が回転することにより、背面側から室外熱交換器4を介して空気を吸い込み、室外熱交換器4を構成している銅管内に冷媒が流れて大気と熱交換を行う。その後、室外ファン1を通解した後に、ベルマウス3により形成された流路を経て前面グリル2から室外機より外に空気を排出する。 First, when the outdoor fan 1 rotates, air is sucked in from the back side via the outdoor heat exchanger 4, and the refrigerant flows into the copper pipe constituting the outdoor heat exchanger 4 to exchange heat with the atmosphere. . Thereafter, after the outdoor fan 1 is opened, the air is discharged from the front grill 2 to the outside of the outdoor unit through the flow path formed by the bell mouth 3.
次に、前面グリル2の構成について説明する。図2は本発明の実施の形態1における前面グリル2の斜視図、図3は要部拡大図である。 Next, the configuration of the front grill 2 will be described. FIG. 2 is a perspective view of front grill 2 according to Embodiment 1 of the present invention, and FIG.
図2および図3に示すように、前面グリル2は四角形状に構成されている外枠を有し、その中心付近から放射状に縦桟6が径方向に伸びている。また、この縦桟6と略垂直方向に交わり、中心付近から径方向に複数の環状の横桟7を備える。なお、図2および図3に示すように、縦桟6は連続に繋がらずに、段違いに配置されているため、隣り合った横桟7同士に挟まれている縦桟6の形状をそれぞれ独立して設けることができるので、縦桟6の断面形状や傾斜角度を、場所によって異ならせる加工がしやすくなり、空気の流れが沿いやすい形状とすることができる。もちろん、縦桟6については連続してつながっていてもよい。 As shown in FIGS. 2 and 3, the front grill 2 has an outer frame configured in a square shape, and vertical bars 6 extend radially from the vicinity of the center thereof. In addition, a plurality of circular horizontal bars 7 intersect with the vertical bars 6 in a substantially vertical direction and extend radially from the center. As shown in FIGS. 2 and 3, the vertical rails 6 are not connected continuously but are arranged in steps, so that the shapes of the vertical rails 6 sandwiched between the adjacent horizontal rails 7 are independent of each other. Therefore, the cross-sectional shape and the inclination angle of the vertical beam 6 can be easily changed depending on the place, and the air flow can be easily formed. Of course, the vertical rails 6 may be connected continuously.
図4には、吹き出す空気流れ方向と平行方向に断面を切り取った縦桟6の断面形状を複数示している。図4には、三箇所の縦桟6の断面形状を一例として示している。図4(a)は中心方向から遠くに位置する縦桟6の断面形状とし、図4(c)は中心方向の近くに位置する縦桟6の断面形状とし、図4(b)はその間に位置する縦桟6の断面形状として
いる。
FIG. 4 shows a plurality of cross-sectional shapes of the vertical beam 6 having a cross-section cut in a direction parallel to the blowing air flow direction. In FIG. 4, the cross-sectional shape of the three vertical bars 6 is shown as an example. 4 (a) shows the cross-sectional shape of the vertical beam 6 located far from the center direction, FIG. 4 (c) shows the cross-sectional shape of the vertical beam 6 located near the center direction, and FIG. It is set as the cross-sectional shape of the vertical beam 6 located.
また、本実施の形態において、前面グリルの隣り合う横桟7のピッチを四隅のコーナーにおいて中心付近よりも大きくしている。具体的には、前面グリル2を正面から直視し、室外ファン1の投影面よりも外方の領域においてピッチを拡大させている。図3に示すように、室外ファン1の投影面よりも外方の領域における隣り合う横桟7のピッチをanとし、さらに次の隣り合う横桟7のピッチをan+1とし、さらに次の隣り合う横桟7のピッチをan+2とすると、an+1>anおよびan+2>anの関係を有する。 Moreover, in this Embodiment, the pitch of the horizontal rail 7 which a front grille adjoins is made larger than the center vicinity in the corner of four corners. Specifically, the front grill 2 is viewed directly from the front, and the pitch is increased in a region outside the projection surface of the outdoor fan 1. As shown in FIG. 3, the pitch of the adjacent horizontal beam 7 in the region outside the projection surface of the outdoor fan 1 is set to an, the pitch of the next adjacent horizontal beam 7 is set to an + 1, and the next adjacent value. Assuming that the pitch of the cross rail 7 is an + 2, there is a relationship of an + 1> an and an + 2> an.
また、an+1=an+2としてもよいが、an+2>an+1とすることによってより通風抵抗を低減することができる。すなわち、横桟7同士のピッチがanとしたよりも外方においては、徐々にピッチを大きくしていくことで、さらなる通風抵抗を低減し、送風性能を向上させることができつつ、ユーザーの安全性を確保することができる。 Moreover, although it is good also as an + 1 = an + 2, ventilation resistance can be reduced more by setting it as an + 2> an + 1. That is, outside the pitch between the cross beams 7 is set to an, gradually increasing the pitch can further reduce the ventilation resistance and improve the air blowing performance, while improving the safety of the user. Sex can be secured.
また、図4に示すように、縦桟6の断面形状が翼形状とすることで、空気の流れが酔いやすくなり、流れの剥離を抑えることができるので、円滑な空気の流れを実現することができるため、送風性能を向上させることができる。 In addition, as shown in FIG. 4, since the cross-sectional shape of the vertical beam 6 is a wing shape, the air flow is likely to get drunk and the separation of the flow can be suppressed, thereby realizing a smooth air flow. Therefore, the air blowing performance can be improved.
また、図4(a)、図4(b)に示すように、中心から離れるにつれて傾斜αを大きくするように縦桟6を傾けることによって、さらに空気の流れが沿いやすくなり、送風性能を向上させることができる。なお、傾ける方向は、空気の流れ方向に対して最小の通風抵抗となるように傾ける。 In addition, as shown in FIGS. 4A and 4B, by tilting the vertical rail 6 so as to increase the inclination α as the distance from the center increases, the air flow becomes easier to follow and the blowing performance is improved. Can be made. The tilting direction is tilted so as to provide the minimum ventilation resistance with respect to the air flow direction.
また、本実施の形態においては、中心から離れるにつれて傾斜αを大きくするようにしたが、例えば、中心から離れるにつれて断面の翼形状の厚みを変えてもよい。 In the present embodiment, the inclination α is increased as the distance from the center increases. However, for example, the thickness of the blade shape of the cross section may be changed as the distance from the center increases.
以上のように本発明は、空気調和機の室外機に適用でき、一台の室外機に一台の室内機を接続する空気調和機や、一台の室外機に複数台の室内機を接続する多室型の空気調和機にも適用することができる。 As described above, the present invention can be applied to an outdoor unit of an air conditioner, and an air conditioner that connects one indoor unit to one outdoor unit, or a plurality of indoor units connected to one outdoor unit. It can also be applied to a multi-room type air conditioner.
1 室外ファン
2 前面グリル
3 ベルマウス
4 室外熱交換器
6 縦桟
7 横桟
1 Outdoor fan 2 Front grille 3 Bellmouth 4 Outdoor heat exchanger 6 Vertical beam 7 Horizontal beam
Claims (4)
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JP2011181233A JP5824656B2 (en) | 2011-08-23 | 2011-08-23 | Air conditioner outdoor unit |
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JP2011181233A JP5824656B2 (en) | 2011-08-23 | 2011-08-23 | Air conditioner outdoor unit |
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JP2013044457A true JP2013044457A (en) | 2013-03-04 |
JP5824656B2 JP5824656B2 (en) | 2015-11-25 |
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JP2011181233A Active JP5824656B2 (en) | 2011-08-23 | 2011-08-23 | Air conditioner outdoor unit |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20170135503A (en) * | 2016-05-31 | 2017-12-08 | 삼성전자주식회사 | Fan guard assembly and outdoor unit having the same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0313038U (en) * | 1989-06-21 | 1991-02-08 | ||
JP2003130396A (en) * | 2001-10-29 | 2003-05-08 | Mitsubishi Electric Corp | Blowing grill and air conditioner of air blowing unit |
JP2003172528A (en) * | 2001-12-06 | 2003-06-20 | Mitsubishi Electric Corp | Fan grill and outdoor equipment for air-conditioner |
-
2011
- 2011-08-23 JP JP2011181233A patent/JP5824656B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0313038U (en) * | 1989-06-21 | 1991-02-08 | ||
JP2003130396A (en) * | 2001-10-29 | 2003-05-08 | Mitsubishi Electric Corp | Blowing grill and air conditioner of air blowing unit |
JP2003172528A (en) * | 2001-12-06 | 2003-06-20 | Mitsubishi Electric Corp | Fan grill and outdoor equipment for air-conditioner |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20170135503A (en) * | 2016-05-31 | 2017-12-08 | 삼성전자주식회사 | Fan guard assembly and outdoor unit having the same |
KR102489427B1 (en) * | 2016-05-31 | 2023-01-18 | 삼성전자주식회사 | Fan guard assembly and outdoor unit having the same |
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