WO2011092751A1 - Air blower, and air conditioning device on which air blower is mounted - Google Patents
Air blower, and air conditioning device on which air blower is mounted Download PDFInfo
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- WO2011092751A1 WO2011092751A1 PCT/JP2010/000584 JP2010000584W WO2011092751A1 WO 2011092751 A1 WO2011092751 A1 WO 2011092751A1 JP 2010000584 W JP2010000584 W JP 2010000584W WO 2011092751 A1 WO2011092751 A1 WO 2011092751A1
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- blower
- blade
- blades
- air
- boss
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/384—Blades characterised by form
Definitions
- the present invention relates to a blower and an air conditioner equipped with this blower, and more particularly to a blower that can be made thin and an air conditioner equipped with this blower.
- An axial blower and a mixed flow blower are provided with a boss serving as a rotation center and an impeller having a plurality of blades provided on the outer peripheral surface of the boss.
- blowers having various configurations have been proposed.
- a propeller fan having a cylindrical boss portion and a plurality of blades radially attached to the boss portion, and a thin-walled cylinder having a fan rotation axis as an axis.
- a “propeller fan” see, for example, Patent Document 1) in which a shaped air guider is linearly adhered to the outer peripheral end of the blade and formed integrally with the blade.
- the present invention has been made to solve the above-described problems, and an object of the present invention is to obtain a blower that can be thinned while maintaining the blowing performance of the blower.
- the blower according to the present invention is a blower including a boss serving as a rotation center and an impeller having a plurality of first blades provided on an outer peripheral surface of the boss. It has a 2nd blade
- the air conditioner according to the present invention is equipped with the above-described blower.
- the second blade is supported at a place other than the boss, the number of the blades of the blower (the number of the first blades + the number of the second blades) is avoided without causing a decrease in the air volume around the boss. Number of sheets) can be partially increased. For this reason, the height of the 1st blade
- FIG. FIG. 1 is a front view showing an example of a blower according to Embodiment 1 of the present invention.
- the blower 100 according to the first embodiment is an axial blower, a mixed flow blower, or the like in which a plurality of blades are provided on the outer peripheral surface of a boss serving as a rotation center.
- the blower 100 includes an impeller 5 and a housing 6.
- the impeller 5 includes a boss 1 serving as a rotation center, a plurality of main blades 3 supported on the outer peripheral surface of the boss 1, and a ring-shaped member 2 provided on the outer peripheral side of the main blade 3.
- the impeller 5 according to the first embodiment includes a plurality of sub blades 4 supported by the ring-shaped member 2 toward the inner peripheral side (the boss 1 side). These sub blades 4 are not supported on the outer peripheral surface of the boss 1. Thereby, the number of blades provided in the blower 100 (the number of main blades 3 + the number of sub blades 4) is increased.
- the main blade 3 corresponds to the first blade in the present invention
- the sub blade 4 corresponds to the second blade in the present invention.
- a casing 6 is provided on the outer peripheral side of the impeller 5 via an outer peripheral portion of the impeller 5 and a predetermined gap. That is, the impeller 5 is housed in the housing 6.
- the boss 1 of the impeller 5 is connected to a motor (not shown), and the impeller 5 rotates by the driving force of this motor.
- FIG. 2 is an explanatory diagram for explaining the relationship between the blade installation configuration (installation posture, number of installations, etc.) and aerodynamic performance.
- Fig.2 (a) is a front view which shows the general impeller used for an axial-flow fan or a mixed flow fan.
- FIG. 2B is a cross-sectional view of the blade row in which the cylindrical cross section at the position indicated by the alternate long and short dash line in FIG.
- the chord length L is a length of a straight line connecting the leading edge and the trailing edge of the blade 303.
- similar blade cascades having a constant chordal ratio ⁇ can obtain substantially the same aerodynamic performance.
- the number of blades may be increased. Recognize.
- the number of blades of the blower 100 (the impeller 5) is increased by the configuration shown in the first embodiment, it is not necessary to increase the number of blades supported by the boss 1.
- the sub blade 4 is connected to a portion other than the ring-shaped member 2, that is, the boss 1.
- the chord length L can be shortened (the height of the blades 5 can be suppressed) without reducing the air volume around the boss 1.
- the chord length L of the main blade 3 in the range where the sub blade 4 is disposed can be shortened while maintaining the blowing performance of the blower 100.
- the blower 100 can be thinned (reducing the dimension of the impeller 5 in the rotation axis direction) while maintaining the blowing performance of the blower 100.
- FIG. 3 is a front view showing another example of the blower according to Embodiment 1 of the present invention.
- the blower 101 shown in FIG. 3 is provided with a protruding piece 9 on the outer peripheral portion of the main blade 3.
- wing 4 is supported by this protrusion 9 toward the inner peripheral side (boss 1 side). That is, the blower 101 has a configuration in which the ring-shaped member 2 of the blower 100 is divided into a plurality of pieces.
- FIG. 4 is a front view showing still another example of the blower according to Embodiment 1 of the present invention.
- the blower 100 and the blower 101 were supported by members (ring-shaped member 2 and projecting piece 9) provided on the main blade 3.
- the sub blade 4 is directly supported by the main blade 3.
- the sub blade 4 only needs to be supported by other than the boss 1. If the sub blade 4 is supported by other than the boss 1, the chord length L of the main blade 3 in the range where the sub blade 4 is arranged can be shortened while maintaining the blowing performance of the blower. For this reason, the blower can be reduced in thickness (reducing the dimension of the impeller 5 in the rotation axis direction) while maintaining the blowing performance.
- Embodiment 2 As shown in the first embodiment, various configurations can be adopted as the configuration for supporting the sub blade 4. Among these, the structure which supports the sub blade
- items that are not particularly described are the same as those in the first embodiment, and the same functions and configurations are described using the same reference numerals.
- FIG. 5 is a longitudinal sectional view showing an example of a blower according to Embodiment 2 of the present invention.
- the blower 103 according to the second embodiment supports the sub blades 4 by the ring-shaped member 2, similarly to the blower 101 shown in the first embodiment. That is, the outer peripheral part of each main blade 3 is connected by the ring-shaped member 2. In other words, each main blade 3 is supported by the ring-shaped member 2 in addition to the boss 1.
- the centrifugal force acting on the main blade 3 by the rotation of the impeller 5 is also supported by the ring-shaped member 2.
- the design freedom of the main blade 3 such as the blade thickness and the chord length at the joint portion of the main blade 3 with the boss 1 can be increased.
- the main blade 3 and the sub blade 4 are different in shape, but the main blade 3 and the sub blade 4 may have the same shape (more specifically, the shape excluding the joining portion).
- Embodiment 3 the sub blade 4 can be supported as follows.
- items that are not particularly described are the same as those in Embodiment 1 or Embodiment 2, and the same functions and configurations are described using the same reference numerals.
- FIG. 6 is a front view showing an example of a blower according to Embodiment 3 of the present invention.
- the ring-shaped member 10 is added to the blower 100 shown in the first embodiment.
- the ring-shaped member 10 is provided so as to connect a substantially central portion of each main blade 3.
- the sub blade 4 is supported by the ring member 10 in addition to the ring member 2 provided on the outer peripheral portion of the main blade 3.
- the sub blade 4 can be supported at two locations, so that the vibration of the sub blade 4 can be suppressed and the strength of the sub blade 4 can be improved.
- FIG. 7 is a front view showing another example of a blower according to Embodiment 3 of the present invention.
- the projecting piece 11 is added to the blower 100 shown in the first embodiment.
- the protruding piece 11 is provided at a substantially central portion of each main blade 3.
- the sub blade 4 is supported by the projecting piece 11 in addition to the ring-shaped member 2 provided on the outer peripheral portion of the main blade 3. That is, the blower 105 has a configuration in which the ring-shaped member 10 of the blower 104 is divided into a plurality of pieces.
- the blower 101 shown in the first embodiment may be provided with the ring-shaped member 10 and the projecting pieces 11 and support the sub blades 4 at two locations.
- the blower 102 shown in the first embodiment may be provided with the ring-shaped member 2 and the projecting piece 9 shown in the first embodiment, and the sub blade 4 may be supported at two locations.
- the sub blade 4 of the blower 104 or the blower 105 shown in the third embodiment may be directly supported by the adjacent main blade 3. By comprising in this way, the sub blade
- the auxiliary blade 4 is supported at a plurality of locations. If the sub blade 4 is supported at a plurality of locations, the vibration of the sub blade 4 can be suppressed and the strength of the sub blade 4 can be improved.
- Embodiment 4 FIG.
- the number of main blades 3 and sub blades 4 is the same, and these are alternately arranged in the rotation direction. Not only this but the main blade 3 and the sub blade
- items that are not particularly described are the same as those in Embodiments 1 to 3, and the same functions and configurations are described using the same reference numerals.
- FIG. 8 is a front view showing an example of a blower according to Embodiment 4 of the present invention.
- the blower 106 shown in FIG. 8 has three main blades 3 in contrast to three sub blades 4. When viewed in the rotational direction of the impeller 5, one sub blade 4 is provided after two main blades 3 are provided. These main blades 3 and sub blades 4 have substantially uniform intervals (circumferential intervals) between adjacent blades.
- FIG. 9 is a front view showing another example of a blower according to Embodiment 4 of the present invention.
- the blower 107 shown in FIG. 9 is provided with three main blades 3 while the number of sub blades 4 is six. When viewed in the rotational direction of the impeller 5, two sub blades 4 are provided after one main blade 3 is provided. These main blades 3 and sub blades 4 have substantially uniform intervals (circumferential intervals) between adjacent blades.
- the number of sub blades 4 is a divisor or multiple of the number of main blades 3 and the intervals (circumferential intervals) between the main blades 3 and the sub blades 4 are configured to be substantially uniform.
- an impeller capable of maintaining a dynamic balance even during rotation and capable of stable operation can be obtained.
- Embodiment 5 FIG.
- an externally driven motor is connected to the boss 1 and the impeller 5 is rotated.
- the impeller 5 may be rotated by a motor having the following configuration.
- items that are not particularly described are the same as those in Embodiments 1 to 4, and the same functions and configurations are described using the same reference numerals.
- adopted for the air blower 103 shown in Embodiment 2 is demonstrated.
- FIG. 10 is a longitudinal sectional view showing an example of a blower according to Embodiment 5 of the present invention.
- the blower 108 according to the fifth embodiment is different from the blower 103 shown in the second embodiment in the following points.
- the blower 108 according to the fifth embodiment is not provided with the externally driven motor (the motor connected to the boss 1) provided in the blower 103 of the second embodiment.
- a motor 12 including a rotor 7 and a stator 8 is provided instead of the externally driven motor.
- the rotor 7 is provided on the outer periphery of the impeller 5. Since the ring-shaped member 2 is provided on the outer peripheral portion of the blower 108 according to the fifth embodiment, the rotor 7 is provided on the outer peripheral portion of the ring-shaped member 2.
- the stator 8 is provided (disposed) in the housing 6 so as to face the rotor 7. And the impeller 5 rotates with the drive force of the motor 12 provided with these rotors 7 and the stator 8.
- the example in which the motor 12 according to the fifth embodiment is employed for the blower 103 has been described.
- the motor 12 according to the fifth embodiment is employed for the blowers 100 to 102 and 104 to 107.
- the blowers 100 to 102 and 104 to 107 are employed for the blowers 100 to 102 and 104 to 107.
- FIG. FIG. 11 is a longitudinal cross-sectional view which shows an example of the air conditioning apparatus which concerns on Embodiment 6 of this invention.
- This FIG. 11 has shown the example which used the air blower 100 which concerns on Embodiment 1 for the indoor unit 200 of an air conditioning apparatus.
- FIG. 11 shows the left side of the drawing as the front side of the indoor unit 200. Based on FIG. 11, the configuration of the indoor unit 200 will be described. Of course, the fans 101 to 108 may be used as the fans of the indoor unit 200.
- the indoor unit 200 supplies conditioned air to an air-conditioning target area such as a room by using a refrigeration cycle that circulates refrigerant.
- This indoor unit 200 mainly includes a casing 110 in which an inlet 111 for sucking indoor air into the interior and an outlet 115 for supplying conditioned air to an air-conditioning target area are formed, and the interior of the casing 110 Is installed in the blower 100 that sucks indoor air from the suction port 111 and blows conditioned air from the blower outlet 115, and is arranged in the air path from the suction port 111 to the blower 100, and exchanges heat between the refrigerant and the indoor air.
- a heat exchanger 114 for producing conditioned air.
- the suction port 111 is formed in the upper part of the housing 110.
- the air outlet 115 is formed in the lower part of the housing 110 (more specifically, the lower side of the front surface of the housing 110).
- the blower 100 is disposed on the downstream side of the suction port 111 and on the upstream side of the heat exchanger 114. Further, for example, three blowers 100 are arranged in the direction orthogonal to the paper surface.
- the installation number of the air blower 100 is an example to the last. What is necessary is just to change suitably the installation number of the air blower 100 according to the air volume etc. which are requested
- the heat exchanger 114 is disposed on the leeward side of the blower 100.
- the heat exchanger 114 includes a front side heat exchanger 114 a disposed on the front side of the housing 110 and a back side heat exchanger 114 b disposed on the back side of the housing 110.
- a fin tube heat exchanger or the like may be used.
- the suction port 111 is provided with a grill 112 and a filter 113.
- the blower outlet 115 is provided with a mechanism for controlling the blowing direction of the airflow, such as a vane (not shown).
- room air flows into the indoor unit 200 from the suction port 111 formed in the upper part of the housing 110 by the blower 100. At this time, dust contained in the air is removed by the filter 113.
- this indoor air passes through the heat exchanger 114, it is heated or cooled by the refrigerant flowing in the heat exchanger 114 to become conditioned air.
- the conditioned air is blown out of the indoor unit 200 from the air outlet 115 formed in the lower part of the housing 110, that is, to the air-conditioning target area.
- the indoor unit 200 (air conditioner) configured as described above uses the blower 100 that can be reduced in size (thinned) and reduced in cost. For this reason, the indoor unit 200 according to Embodiment 6 can be downsized (thinned). Further, the cost of the indoor unit 200 can be reduced. Moreover, in the indoor unit 200 (air conditioner) configured as described above, the blower 100 that is downsized (thinned) while maintaining the blowing performance is used. For this reason, when an indoor unit of the same size is manufactured, an indoor unit having a larger air volume than a conventional indoor unit can be obtained.
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- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Abstract
Provided is an air blower, the thickness of which can be reduced while the air blowing performance is maintained. The air blower is provided with an impeller (5) having a boss (1) functioning as a rotation center, and a plurality of primary vanes (3) provided on the outer peripheral surface of the boss (1). The air blower also has secondary vanes (4) supported by at least either the primary vanes (3) or members provided on the primary vanes (3).
Description
本発明は送風機及びこの送風機を搭載した空気調和装置に関し、特に薄型化を可能にした送風機及びこの送風機を搭載した空気調和装置に関するものである。
The present invention relates to a blower and an air conditioner equipped with this blower, and more particularly to a blower that can be made thin and an air conditioner equipped with this blower.
軸流送風機や斜流送風機は、回転中心となるボス及びこのボスの外周面に設けられた複数の羽根を有する羽根車を備えており、従来より種々の構成の送風機が提案されている。例えば、このような送風機としては、「円筒状のボス部と、このボス部に放射状に取付けられた複数の羽根とを有したプロペラファンであって、ファン回転軸を軸心とするうす肉円筒状のエアガイダを、前記羽根の外周端部に線状に密着させてこの羽根と一体に形成したことを特徴とするプロペラファン」(例えば特許文献1参照)というものが提案されている。特許文献1に記載のプロペラファンは、ファン回転軸を軸心とするうす肉円筒状のエアガイダを羽根の外周端部に線状に密着させてこの羽根と一体に形成し、羽根の外周端に生じる漏れ流れを抑制し、低騒音化を図っている。
An axial blower and a mixed flow blower are provided with a boss serving as a rotation center and an impeller having a plurality of blades provided on the outer peripheral surface of the boss. Conventionally, blowers having various configurations have been proposed. For example, as such a blower, “a propeller fan having a cylindrical boss portion and a plurality of blades radially attached to the boss portion, and a thin-walled cylinder having a fan rotation axis as an axis. There has been proposed a “propeller fan” (see, for example, Patent Document 1) in which a shaped air guider is linearly adhered to the outer peripheral end of the blade and formed integrally with the blade. In the propeller fan described in Patent Document 1, a thin-walled cylindrical air guider whose axis is the fan rotation axis is linearly adhered to the outer peripheral end of the blade and formed integrally with the blade. The leakage flow that occurs is suppressed to reduce noise.
従来の送風機の羽根は、一般的に、外周側の高さが内周側(ボス側)の高さよりも高くなっている。このため、このような軸流送風機や斜流送風機を薄型化しようとした場合、羽根の高さ(特に外周側の羽根の高さ)を低くする必要がる。このとき、送風機の送風性能(風量、昇圧量等)を維持しようとすると、羽根枚数の増加や羽根の取付け角の変更が必要となる。しかしながら、羽根枚数を増加させることはボスに支持される羽根の枚数を増加させることとなり、ボス周辺の風量低下や羽根の取付強度不足等を招くという問題点があった。また、羽根枚数を増加させずに送風機を薄型化するために羽根の取付け角を変更すると、最適動作風量が変化してしまうという問題点があった。つまり、従来は、送風機の送風性能を維持しつつ、軸流送風機や斜流送風機等を大幅に薄型化することが困難であるという問題点があった。
Conventional blades of a conventional blower generally have a height on the outer peripheral side higher than a height on the inner peripheral side (boss side). For this reason, when it is going to make such an axial flow fan and a mixed flow fan thin, it is necessary to make the height of a blade | wing (especially blade height of an outer peripheral side) low. At this time, in order to maintain the air blowing performance (air volume, pressure increase amount, etc.) of the blower, it is necessary to increase the number of blades and change the blade mounting angle. However, increasing the number of blades increases the number of blades supported by the boss, which causes problems such as a decrease in the air volume around the boss and insufficient mounting strength of the blades. In addition, there has been a problem in that the optimum operating air volume changes when the blade mounting angle is changed in order to reduce the thickness of the blower without increasing the number of blades. That is, conventionally, there has been a problem that it is difficult to make the axial flow fan, the mixed flow fan, and the like significantly thinner while maintaining the blowing performance of the blower.
本発明は、上記のような問題点を解決するためになされたものであり、送風機の送風性能を維持しつつ薄型化することが可能な送風機を得ることを目的としている。
The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain a blower that can be thinned while maintaining the blowing performance of the blower.
本発明に係る送風機は、回転中心となるボス及びこのボスの外周面に設けられた複数の第1の羽根を有する羽根車を備えた送風機において、前記第1の羽根及び前記第1の羽根に設けられた部材のうち少なくとも一方に支持される第2の羽根を有するものである。
The blower according to the present invention is a blower including a boss serving as a rotation center and an impeller having a plurality of first blades provided on an outer peripheral surface of the boss. It has a 2nd blade | wing supported by at least one among the provided members.
また、本発明に係る空気調和装置は、上述の送風機を搭載したものである。
The air conditioner according to the present invention is equipped with the above-described blower.
本発明によれば、ボス以外の箇所で支持される第2の羽根を有するので、ボス周辺部の風量低下を招かずに、送風機の羽根枚数(第1の羽根の枚数+第2の羽根の枚数)を部分的に増加させることができる。このため、第2の羽根が設けられた付近の第1の羽根の高さを抑制することができる。したがって、送風機の送風性能を維持しつつ、軸流送風機や斜流送風機等を薄型化することが可能となる。
According to the present invention, since the second blade is supported at a place other than the boss, the number of the blades of the blower (the number of the first blades + the number of the second blades) is avoided without causing a decrease in the air volume around the boss. Number of sheets) can be partially increased. For this reason, the height of the 1st blade | wing near the 2nd blade | wing provided can be suppressed. Therefore, it is possible to reduce the thickness of the axial blower, the mixed flow blower, and the like while maintaining the blowing performance of the blower.
実施の形態1.
図1は、本発明の実施の形態1に係る送風機の一例を示す正面図である。
本実施の形態1に係る送風機100は、回転中心となるボスの外周面に複数の羽根が設けられた、軸流送風機や斜流送風機等である。この送風機100は、羽根車5及び筐体6を備えている。Embodiment 1 FIG.
FIG. 1 is a front view showing an example of a blower according toEmbodiment 1 of the present invention.
Theblower 100 according to the first embodiment is an axial blower, a mixed flow blower, or the like in which a plurality of blades are provided on the outer peripheral surface of a boss serving as a rotation center. The blower 100 includes an impeller 5 and a housing 6.
図1は、本発明の実施の形態1に係る送風機の一例を示す正面図である。
本実施の形態1に係る送風機100は、回転中心となるボスの外周面に複数の羽根が設けられた、軸流送風機や斜流送風機等である。この送風機100は、羽根車5及び筐体6を備えている。
FIG. 1 is a front view showing an example of a blower according to
The
羽根車5は、回転中心となるボス1、ボス1の外周面に支持された複数の主羽根3、及び主羽根3の外周側に設けられたリング状部材2を備えている。また、本実施の形態1に係る羽根車5は、内周側(ボス1側)に向かってリング状部材2に支持された複数の副羽根4を備えている。これら副羽根4は、ボス1の外周面に支持されていない。これにより、送風機100に設けられた羽の枚数(主羽根3の枚数+副羽根4の枚数)を増加させている。
ここで、主羽根3が本発明における第1の羽根に相当し、副羽根4が本発明における第2の羽根に相当する。 Theimpeller 5 includes a boss 1 serving as a rotation center, a plurality of main blades 3 supported on the outer peripheral surface of the boss 1, and a ring-shaped member 2 provided on the outer peripheral side of the main blade 3. The impeller 5 according to the first embodiment includes a plurality of sub blades 4 supported by the ring-shaped member 2 toward the inner peripheral side (the boss 1 side). These sub blades 4 are not supported on the outer peripheral surface of the boss 1. Thereby, the number of blades provided in the blower 100 (the number of main blades 3 + the number of sub blades 4) is increased.
Here, themain blade 3 corresponds to the first blade in the present invention, and the sub blade 4 corresponds to the second blade in the present invention.
ここで、主羽根3が本発明における第1の羽根に相当し、副羽根4が本発明における第2の羽根に相当する。 The
Here, the
この羽根車5の外周側には、羽根車5の外周部と所定の空隙を介して、筐体6が設けられている。つまり、羽根車5は筐体6に収められている。
羽根車5のボス1はモーター(図示せず)と接続されており、このモーターの駆動力によって羽根車5が回転する。 Acasing 6 is provided on the outer peripheral side of the impeller 5 via an outer peripheral portion of the impeller 5 and a predetermined gap. That is, the impeller 5 is housed in the housing 6.
Theboss 1 of the impeller 5 is connected to a motor (not shown), and the impeller 5 rotates by the driving force of this motor.
羽根車5のボス1はモーター(図示せず)と接続されており、このモーターの駆動力によって羽根車5が回転する。 A
The
ここで、本実施の形態1に示す構成によって送風機100の羽根枚数を増やすことの効果を説明する。
図2は、羽根の設置構成(設置姿勢や設置枚数等)と空力性能との関係を説明する説明図である。なお、図2(a)は、軸流送風機や斜流送風機に用いられる一般的な羽根車を示す正面図である。また、図2(b)は、図2(a)に一点鎖線で示した位置の円筒断面を平面展開した翼列の断面図である。 Here, the effect of increasing the number of blades of theblower 100 by the configuration shown in the first embodiment will be described.
FIG. 2 is an explanatory diagram for explaining the relationship between the blade installation configuration (installation posture, number of installations, etc.) and aerodynamic performance. In addition, Fig.2 (a) is a front view which shows the general impeller used for an axial-flow fan or a mixed flow fan. FIG. 2B is a cross-sectional view of the blade row in which the cylindrical cross section at the position indicated by the alternate long and short dash line in FIG.
図2は、羽根の設置構成(設置姿勢や設置枚数等)と空力性能との関係を説明する説明図である。なお、図2(a)は、軸流送風機や斜流送風機に用いられる一般的な羽根車を示す正面図である。また、図2(b)は、図2(a)に一点鎖線で示した位置の円筒断面を平面展開した翼列の断面図である。 Here, the effect of increasing the number of blades of the
FIG. 2 is an explanatory diagram for explaining the relationship between the blade installation configuration (installation posture, number of installations, etc.) and aerodynamic performance. In addition, Fig.2 (a) is a front view which shows the general impeller used for an axial-flow fan or a mixed flow fan. FIG. 2B is a cross-sectional view of the blade row in which the cylindrical cross section at the position indicated by the alternate long and short dash line in FIG.
翼列の空力性能は、翼弦長L及び隣合う羽根の間隔tにより定義される弦節比σ=L/tで関係付けられる。ここで、翼弦長Lは、羽根303の前縁と後縁とを結んだ直線の長さである。一般的に、弦節比σが一定である相似形の翼列は、ほぼ等しい空力性能が得られることがわかっている。つまり、翼弦長Lの短い羽根(高さを抑制した羽根)で翼弦長Lの長い羽根(高さの高い羽根)と等しい空力性能を得るには、羽根の枚数を増やせば良いことがわかる。
The aerodynamic performance of the cascade is related by the chordal ratio σ = L / t defined by the chord length L and the interval t between adjacent blades. Here, the chord length L is a length of a straight line connecting the leading edge and the trailing edge of the blade 303. In general, it has been found that similar blade cascades having a constant chordal ratio σ can obtain substantially the same aerodynamic performance. In other words, in order to obtain aerodynamic performance equal to that of a blade having a short chord length L (blade having a suppressed height) and a blade having a long chord length L (blade having a high height), the number of blades may be increased. Recognize.
しかしながら、従来の構成で羽根の枚数を増加させることは、ボス301の外周面に支持される羽根303の枚数が増加することを意味する。羽根肉厚の薄型化には製造上、強度上の制約と限界があるため、羽根303の枚数を増やすことにより、ボス301周辺部の風路を塞いでしまうこととなる。このため、従来の構成で羽根303の枚数を増加させた場合、ボス301周辺部の風量が低下してしまう。
However, increasing the number of blades in the conventional configuration means that the number of blades 303 supported on the outer peripheral surface of the boss 301 is increased. Since the thickness reduction of the blade has manufacturing limitations and limitations, increasing the number of blades 303 will block the air path around the boss 301. For this reason, when the number of blades 303 is increased in the conventional configuration, the air volume around the boss 301 decreases.
また、羽根303の枚数を増加させずに翼弦長Lを短くする(羽根の高さを抑制する)構成としては、羽根303の取付け角を変更するという構成も考えられる。しかしながら、羽根303の取付け角を変更すると、気流と羽根303の迎角が変わる。このため、送風機は、効率の高い動作風量が変化してしまい、従来送風機との互換性が損なわれてしまう。
Also, as a configuration that shortens the chord length L without increasing the number of blades 303 (suppresses the height of the blades), a configuration in which the mounting angle of the blades 303 is changed is also conceivable. However, changing the mounting angle of the blade 303 changes the airflow and the angle of attack of the blade 303. For this reason, the air blower has a high efficient operating air flow, and compatibility with the conventional blower is impaired.
一方、本実施の形態1に示す構成によって送風機100(羽根車5)の羽根枚数を増やす場合、ボス1に支持される羽根の枚数を増加させる必要がない。副羽根4は、リング状部材2、つまりボス1以外に接続されているからである。このため、ボス1周辺部の風量が低下することなく、翼弦長Lを短くする(羽根5の高さを抑制する)ことができる。また、主羽根3及び副羽根4は、迎角を変更する必要もない。
On the other hand, when the number of blades of the blower 100 (the impeller 5) is increased by the configuration shown in the first embodiment, it is not necessary to increase the number of blades supported by the boss 1. This is because the sub blade 4 is connected to a portion other than the ring-shaped member 2, that is, the boss 1. For this reason, the chord length L can be shortened (the height of the blades 5 can be suppressed) without reducing the air volume around the boss 1. Further, it is not necessary for the main blade 3 and the sub blade 4 to change the angle of attack.
以上、このように構成された送風機100においては、送風機100の送風性能を維持しつつ、副羽根4が配置された範囲における主羽根3の翼弦長Lを短くすることができる。このため、送風機100は、送風機100の送風性能を維持しつつ、薄型化(羽根車5の回転軸方向の寸法を低減させること)が可能となる。
As described above, in the blower 100 configured as described above, the chord length L of the main blade 3 in the range where the sub blade 4 is disposed can be shortened while maintaining the blowing performance of the blower 100. For this reason, the blower 100 can be thinned (reducing the dimension of the impeller 5 in the rotation axis direction) while maintaining the blowing performance of the blower 100.
なお、副羽根4の支持構成は、図1の構成に限定されるものではない。
図3は、本発明の実施の形態1に係る送風機の別の一例を示す正面図である。
図3に示す送風機101は、主羽根3の外周部に突片9が設けられている。そして、副羽根4は、内周側(ボス1側)に向かってこの突片9に支持されている。つまり、送風機101は、送風機100のリング状部材2を複数に分断した構成となっている。 In addition, the support structure of the sub blade |wing 4 is not limited to the structure of FIG.
FIG. 3 is a front view showing another example of the blower according toEmbodiment 1 of the present invention.
Theblower 101 shown in FIG. 3 is provided with a protruding piece 9 on the outer peripheral portion of the main blade 3. And the sub blade | wing 4 is supported by this protrusion 9 toward the inner peripheral side (boss 1 side). That is, the blower 101 has a configuration in which the ring-shaped member 2 of the blower 100 is divided into a plurality of pieces.
図3は、本発明の実施の形態1に係る送風機の別の一例を示す正面図である。
図3に示す送風機101は、主羽根3の外周部に突片9が設けられている。そして、副羽根4は、内周側(ボス1側)に向かってこの突片9に支持されている。つまり、送風機101は、送風機100のリング状部材2を複数に分断した構成となっている。 In addition, the support structure of the sub blade |
FIG. 3 is a front view showing another example of the blower according to
The
図4は、本発明の実施の形態1に係る送風機のさらに別の一例を示す正面図である。
送風機100及び送風機101は、主羽根3に設けられた部材(リング状部材2、突片9)によって支持されていた。一方、図4に示す送風機102は、主羽根3に副羽根4が直接支持されている。 FIG. 4 is a front view showing still another example of the blower according toEmbodiment 1 of the present invention.
Theblower 100 and the blower 101 were supported by members (ring-shaped member 2 and projecting piece 9) provided on the main blade 3. On the other hand, in the blower 102 shown in FIG. 4, the sub blade 4 is directly supported by the main blade 3.
送風機100及び送風機101は、主羽根3に設けられた部材(リング状部材2、突片9)によって支持されていた。一方、図4に示す送風機102は、主羽根3に副羽根4が直接支持されている。 FIG. 4 is a front view showing still another example of the blower according to
The
つまり、副羽根4は、ボス1以外に支持されていればよいということである。副羽根4がボス1以外に支持されていれば、送風機の送風性能を維持しつつ、副羽根4が配置された範囲における主羽根3の翼弦長Lを短くすることができる。このため、送風機は、送風性能を維持しつつ、薄型化(羽根車5の回転軸方向の寸法を低減させること)が可能となる。
That is, the sub blade 4 only needs to be supported by other than the boss 1. If the sub blade 4 is supported by other than the boss 1, the chord length L of the main blade 3 in the range where the sub blade 4 is arranged can be shortened while maintaining the blowing performance of the blower. For this reason, the blower can be reduced in thickness (reducing the dimension of the impeller 5 in the rotation axis direction) while maintaining the blowing performance.
実施の形態2.
実施の形態1で示したように、副羽根4を支持する構成には、種々の構成を採用することができる。この中でも、リング状部材2で副羽根4を支持する構成は、以下のような効果を得ることもできる。なお、本実施の形態2において、特に記述しない項目については実施の形態1と同様とし、同一の機能や構成については同一の符号を用いて述べることとする。Embodiment 2. FIG.
As shown in the first embodiment, various configurations can be adopted as the configuration for supporting thesub blade 4. Among these, the structure which supports the sub blade | wing 4 with the ring-shaped member 2 can also acquire the following effects. In the second embodiment, items that are not particularly described are the same as those in the first embodiment, and the same functions and configurations are described using the same reference numerals.
実施の形態1で示したように、副羽根4を支持する構成には、種々の構成を採用することができる。この中でも、リング状部材2で副羽根4を支持する構成は、以下のような効果を得ることもできる。なお、本実施の形態2において、特に記述しない項目については実施の形態1と同様とし、同一の機能や構成については同一の符号を用いて述べることとする。
As shown in the first embodiment, various configurations can be adopted as the configuration for supporting the
図5は、本発明の実施の形態2に係る送風機の一例を示す縦断面図である。本実施の形態2に係る送風機103は、実施の形態1で示した送風機101と同様に、リング状部材2によって副羽根4を支持している。つまり、各主羽根3の外周部は、リング状部材2によって連結されている。換言すると、各主羽根3は、ボス1に加え、リング状部材2によっても支持されている。
FIG. 5 is a longitudinal sectional view showing an example of a blower according to Embodiment 2 of the present invention. The blower 103 according to the second embodiment supports the sub blades 4 by the ring-shaped member 2, similarly to the blower 101 shown in the first embodiment. That is, the outer peripheral part of each main blade 3 is connected by the ring-shaped member 2. In other words, each main blade 3 is supported by the ring-shaped member 2 in addition to the boss 1.
ボス1に支持される主羽根3は、羽根車5の回転によって遠心力が作用するため、ボス1との接合部分の強度対策が必要になる。このため、内周側(ボス1側)の翼肉厚を厚くして翼弦長を長くする必要性や、主羽根3の外周側(筐体6側)の重量を小さくする設計制約が生じる。
Since the centrifugal force acts on the main blade 3 supported by the boss 1 due to the rotation of the impeller 5, it is necessary to take measures against the strength of the joint portion with the boss 1. For this reason, it is necessary to increase the blade thickness on the inner peripheral side (boss 1 side) to increase the chord length, and there are design restrictions to reduce the weight on the outer peripheral side (housing 6 side) of the main blade 3. .
しかしながら、本実施の形態2に係る送風機103においては、羽根車5の回転によって主羽根3に作用する遠心力は、リング状部材2によっても支持される。このため、主羽根3のボス1との接合部分における翼肉厚や翼弦長等、主羽根3の設計自由度を高くすることができる。
なお、図5では、主羽根3と副羽根4の形状が異なっているが、主羽根3と副羽根4の形状(より詳しくは接合箇所を除く形状)を等しくてもよい。 However, in theblower 103 according to the second embodiment, the centrifugal force acting on the main blade 3 by the rotation of the impeller 5 is also supported by the ring-shaped member 2. For this reason, the design freedom of the main blade 3 such as the blade thickness and the chord length at the joint portion of the main blade 3 with the boss 1 can be increased.
In FIG. 5, themain blade 3 and the sub blade 4 are different in shape, but the main blade 3 and the sub blade 4 may have the same shape (more specifically, the shape excluding the joining portion).
なお、図5では、主羽根3と副羽根4の形状が異なっているが、主羽根3と副羽根4の形状(より詳しくは接合箇所を除く形状)を等しくてもよい。 However, in the
In FIG. 5, the
実施の形態3.
例えば、副羽根4を以下のように支持することも可能である。なお、本実施の形態3において、特に記述しない項目については実施の形態1又は実施の形態2と同様とし、同一の機能や構成については同一の符号を用いて述べることとする。Embodiment 3 FIG.
For example, thesub blade 4 can be supported as follows. In Embodiment 3, items that are not particularly described are the same as those in Embodiment 1 or Embodiment 2, and the same functions and configurations are described using the same reference numerals.
例えば、副羽根4を以下のように支持することも可能である。なお、本実施の形態3において、特に記述しない項目については実施の形態1又は実施の形態2と同様とし、同一の機能や構成については同一の符号を用いて述べることとする。
For example, the
図6は、本発明の実施の形態3に係る送風機の一例を示す正面図である。本実施の形態3に係る送風機104は、実施の形態1で示した送風機100に、リング状部材10が追加されている。リング状部材10は、各主羽根3の略中央部を接続するように設けられている。そして、副羽根4は、主羽根3の外周部に設けられたリング状部材2に加え、このリング状部材10にも支持されている。
FIG. 6 is a front view showing an example of a blower according to Embodiment 3 of the present invention. In the blower 104 according to the third embodiment, the ring-shaped member 10 is added to the blower 100 shown in the first embodiment. The ring-shaped member 10 is provided so as to connect a substantially central portion of each main blade 3. The sub blade 4 is supported by the ring member 10 in addition to the ring member 2 provided on the outer peripheral portion of the main blade 3.
このように構成された送風機104においては、副羽根4を2箇所で支持することができるため、副羽根4の振動を抑制し、副羽根4の強度を向上することができる。
In the blower 104 configured in this manner, the sub blade 4 can be supported at two locations, so that the vibration of the sub blade 4 can be suppressed and the strength of the sub blade 4 can be improved.
なお、副羽根4の支持構成は、図6の構成に限定されるものではない。
図7は、本発明の実施の形態3に係る送風機の別の一例を示す正面図である。
図7に示す送風機105は、実施の形態1で示した送風機100に、突片11が追加されている。突片11は、各主羽根3の略中央部に設けられている。そして、副羽根4は、主羽根3の外周部に設けられたリング状部材2に加え、この突片11にも支持されている。つまり、送風機105は、送風機104のリング状部材10を複数に分断した構成となっている。 In addition, the support structure of the sub blade |wing 4 is not limited to the structure of FIG.
FIG. 7 is a front view showing another example of a blower according toEmbodiment 3 of the present invention.
In theblower 105 shown in FIG. 7, the projecting piece 11 is added to the blower 100 shown in the first embodiment. The protruding piece 11 is provided at a substantially central portion of each main blade 3. The sub blade 4 is supported by the projecting piece 11 in addition to the ring-shaped member 2 provided on the outer peripheral portion of the main blade 3. That is, the blower 105 has a configuration in which the ring-shaped member 10 of the blower 104 is divided into a plurality of pieces.
図7は、本発明の実施の形態3に係る送風機の別の一例を示す正面図である。
図7に示す送風機105は、実施の形態1で示した送風機100に、突片11が追加されている。突片11は、各主羽根3の略中央部に設けられている。そして、副羽根4は、主羽根3の外周部に設けられたリング状部材2に加え、この突片11にも支持されている。つまり、送風機105は、送風機104のリング状部材10を複数に分断した構成となっている。 In addition, the support structure of the sub blade |
FIG. 7 is a front view showing another example of a blower according to
In the
また例えば、実施の形態1で示した送風機101にリング状部材10や突片11を設け、副羽根4を2箇所で支持する構成としてもよい。
また例えば、実施の形態1で示した送風機102に実施の形態1で示したリング状部材2や突片9を設け、副羽根4を2箇所で支持する構成としてもよい。
また例えば、本実施の形態3で示した送風機104や送風機105の副羽根4を、隣接する主羽根3に直接支持させてもよい。このように構成することにより、副羽根4を2箇所以上で支持することができる。 Further, for example, theblower 101 shown in the first embodiment may be provided with the ring-shaped member 10 and the projecting pieces 11 and support the sub blades 4 at two locations.
Further, for example, theblower 102 shown in the first embodiment may be provided with the ring-shaped member 2 and the projecting piece 9 shown in the first embodiment, and the sub blade 4 may be supported at two locations.
Further, for example, thesub blade 4 of the blower 104 or the blower 105 shown in the third embodiment may be directly supported by the adjacent main blade 3. By comprising in this way, the sub blade | wing 4 can be supported by two or more places.
また例えば、実施の形態1で示した送風機102に実施の形態1で示したリング状部材2や突片9を設け、副羽根4を2箇所で支持する構成としてもよい。
また例えば、本実施の形態3で示した送風機104や送風機105の副羽根4を、隣接する主羽根3に直接支持させてもよい。このように構成することにより、副羽根4を2箇所以上で支持することができる。 Further, for example, the
Further, for example, the
Further, for example, the
つまり、副羽根4が複数の箇所で支持されていればよいということである。副羽根4が複数の箇所で支持されていれば、副羽根4の振動を抑制し、副羽根4の強度を向上することができる。
That is, it is only necessary that the auxiliary blade 4 is supported at a plurality of locations. If the sub blade 4 is supported at a plurality of locations, the vibration of the sub blade 4 can be suppressed and the strength of the sub blade 4 can be improved.
実施の形態4.
実施の形態1~実施の形態3までは、主羽根3と副羽根4の枚数を同数とし、回転方向においてこれらを交互に配置していた。これに限らず、主羽根3及び副羽根4は、例えば以下のように配置することができる。なお、本実施の形態4において、特に記述しない項目については実施の形態1~実施の形態3と同様とし、同一の機能や構成については同一の符号を用いて述べることとする。Embodiment 4 FIG.
In the first to third embodiments, the number ofmain blades 3 and sub blades 4 is the same, and these are alternately arranged in the rotation direction. Not only this but the main blade 3 and the sub blade | wing 4 can be arrange | positioned as follows, for example. In Embodiment 4, items that are not particularly described are the same as those in Embodiments 1 to 3, and the same functions and configurations are described using the same reference numerals.
実施の形態1~実施の形態3までは、主羽根3と副羽根4の枚数を同数とし、回転方向においてこれらを交互に配置していた。これに限らず、主羽根3及び副羽根4は、例えば以下のように配置することができる。なお、本実施の形態4において、特に記述しない項目については実施の形態1~実施の形態3と同様とし、同一の機能や構成については同一の符号を用いて述べることとする。
In the first to third embodiments, the number of
図8は、本発明の実施の形態4に係る送風機の一例を示す正面図である。
図8に示す送風機106は、副羽根4が3枚であるのに対し、主羽根3が6枚設けられている。そして、羽根車5の回転方向に見た場合、主羽根3が2枚設けられた後に副羽根4が1枚設けられている。これら主羽根3及び副羽根4は、隣接する羽根の間隔(周方向間隔)がほぼ均一となっている。 FIG. 8 is a front view showing an example of a blower according toEmbodiment 4 of the present invention.
Theblower 106 shown in FIG. 8 has three main blades 3 in contrast to three sub blades 4. When viewed in the rotational direction of the impeller 5, one sub blade 4 is provided after two main blades 3 are provided. These main blades 3 and sub blades 4 have substantially uniform intervals (circumferential intervals) between adjacent blades.
図8に示す送風機106は、副羽根4が3枚であるのに対し、主羽根3が6枚設けられている。そして、羽根車5の回転方向に見た場合、主羽根3が2枚設けられた後に副羽根4が1枚設けられている。これら主羽根3及び副羽根4は、隣接する羽根の間隔(周方向間隔)がほぼ均一となっている。 FIG. 8 is a front view showing an example of a blower according to
The
図9は、本発明の実施の形態4に係る送風機の別の一例を示す正面図である。
図9に示す送風機107は、副羽根4が6枚であるのに対し、主羽根3が3枚設けられている。そして、羽根車5の回転方向に見た場合、主羽根3が1枚設けられた後に副羽根4が2枚設けられている。これら主羽根3及び副羽根4は、隣接する羽根の間隔(周方向間隔)がほぼ均一となっている。 FIG. 9 is a front view showing another example of a blower according toEmbodiment 4 of the present invention.
Theblower 107 shown in FIG. 9 is provided with three main blades 3 while the number of sub blades 4 is six. When viewed in the rotational direction of the impeller 5, two sub blades 4 are provided after one main blade 3 is provided. These main blades 3 and sub blades 4 have substantially uniform intervals (circumferential intervals) between adjacent blades.
図9に示す送風機107は、副羽根4が6枚であるのに対し、主羽根3が3枚設けられている。そして、羽根車5の回転方向に見た場合、主羽根3が1枚設けられた後に副羽根4が2枚設けられている。これら主羽根3及び副羽根4は、隣接する羽根の間隔(周方向間隔)がほぼ均一となっている。 FIG. 9 is a front view showing another example of a blower according to
The
このように副羽根4の枚数を主羽根3の枚数の約数又は倍数とし、主羽根3及び副羽根4の間隔(周方向間隔)をほぼ均一に構成することで、種々の設計仕様の羽根車において、回転時も動バランスを保ち、安定した動作が可能な羽根車を得ることができる。
In this way, the number of sub blades 4 is a divisor or multiple of the number of main blades 3 and the intervals (circumferential intervals) between the main blades 3 and the sub blades 4 are configured to be substantially uniform. In the car, an impeller capable of maintaining a dynamic balance even during rotation and capable of stable operation can be obtained.
実施の形態5.
実施の形態1~実施の形態4においては、外部駆動のモーターをボス1に接続し、羽根車5を回転させていた。これに限らず、例えば以下のような構成のモーターによって羽根車5を回転させてもよい。なお、本実施の形態5において、特に記述しない項目については実施の形態1~実施の形態4と同様とし、同一の機能や構成については同一の符号を用いて述べることとする。また、以下の説明では、実施の形態2で示した送風機103に本実施の形態5に係るモーターを採用した場合について説明する。Embodiment 5 FIG.
In the first to fourth embodiments, an externally driven motor is connected to theboss 1 and the impeller 5 is rotated. For example, the impeller 5 may be rotated by a motor having the following configuration. In Embodiment 5, items that are not particularly described are the same as those in Embodiments 1 to 4, and the same functions and configurations are described using the same reference numerals. Moreover, in the following description, the case where the motor which concerns on this Embodiment 5 is employ | adopted for the air blower 103 shown in Embodiment 2 is demonstrated.
実施の形態1~実施の形態4においては、外部駆動のモーターをボス1に接続し、羽根車5を回転させていた。これに限らず、例えば以下のような構成のモーターによって羽根車5を回転させてもよい。なお、本実施の形態5において、特に記述しない項目については実施の形態1~実施の形態4と同様とし、同一の機能や構成については同一の符号を用いて述べることとする。また、以下の説明では、実施の形態2で示した送風機103に本実施の形態5に係るモーターを採用した場合について説明する。
In the first to fourth embodiments, an externally driven motor is connected to the
図10は、本発明の実施の形態5に係る送風機の一例を示す縦断面図である。
本実施の形態5に係る送風機108は、以下の点が実施の形態2で示した送風機103と異なる。まず、本実施の形態5に係る送風機108は、実施の形態2の送風機103に設けられていた外部駆動のモーター(ボス1と接続されていたモーター)が設けられていない。そして、外部駆動のモーターに換えて、回転子7と固定子8を備えたモーター12が設けられている。 FIG. 10 is a longitudinal sectional view showing an example of a blower according toEmbodiment 5 of the present invention.
Theblower 108 according to the fifth embodiment is different from the blower 103 shown in the second embodiment in the following points. First, the blower 108 according to the fifth embodiment is not provided with the externally driven motor (the motor connected to the boss 1) provided in the blower 103 of the second embodiment. A motor 12 including a rotor 7 and a stator 8 is provided instead of the externally driven motor.
本実施の形態5に係る送風機108は、以下の点が実施の形態2で示した送風機103と異なる。まず、本実施の形態5に係る送風機108は、実施の形態2の送風機103に設けられていた外部駆動のモーター(ボス1と接続されていたモーター)が設けられていない。そして、外部駆動のモーターに換えて、回転子7と固定子8を備えたモーター12が設けられている。 FIG. 10 is a longitudinal sectional view showing an example of a blower according to
The
より詳しくは、回転子7は羽根車5の外周部に設けられている。本実施の形態5に係る送風機108はその外周部にリング状部材2が設けられているので、回転子7をリング状部材2の外周部に設けている。また、固定子8は、回転子7と対向するように筐体6に設けられている(配置されている)。そして、これら回転子7及び固定子8を備えたモーター12の駆動力で、羽根車5が回転する。
More specifically, the rotor 7 is provided on the outer periphery of the impeller 5. Since the ring-shaped member 2 is provided on the outer peripheral portion of the blower 108 according to the fifth embodiment, the rotor 7 is provided on the outer peripheral portion of the ring-shaped member 2. The stator 8 is provided (disposed) in the housing 6 so as to face the rotor 7. And the impeller 5 rotates with the drive force of the motor 12 provided with these rotors 7 and the stator 8. FIG.
このように構成された送風機108においては、外部駆動のモーターを設置するペースが不要となる。このため、送風機108をより薄型化することが可能となる。また、径の大きな箇所でモーター12を構成することができるので、同等の磁気吸引力の発生(等しいモーター消費電力)でも大きなトルクの生成が容易となる。このため、同等コストでの高効率化が可能で、又は同等性能のモーターを安価な磁石や電機子で構成することが可能になることにより、小型で安価な送風機108を得ることもできる。
In the fan 108 configured as described above, a pace for installing an externally driven motor becomes unnecessary. For this reason, it becomes possible to make the blower 108 thinner. In addition, since the motor 12 can be configured at a location having a large diameter, it is easy to generate a large torque even when the equivalent magnetic attractive force is generated (equal motor power consumption). For this reason, it is possible to increase the efficiency at the same cost, or to configure a motor having the same performance with an inexpensive magnet or armature, so that a small and inexpensive blower 108 can be obtained.
なお、本実施の形態5では送風機103に本実施の形態5に係るモーター12を採用した例について説明したが、送風機100~102,104~107に本実施の形態5に係るモーター12を採用しても勿論よい。
In the fifth embodiment, the example in which the motor 12 according to the fifth embodiment is employed for the blower 103 has been described. However, the motor 12 according to the fifth embodiment is employed for the blowers 100 to 102 and 104 to 107. Of course.
実施の形態6.
図11は、本発明の実施の形態6に係る空気調和装置の一例を示す縦断面図である。この図11は、実施の形態1に係る送風機100を、空気調和装置の室内機200に用いた例を示している。また、図11は、図の左側を室内機200の前面側として示している。図11に基づいて、室内機200の構成について説明する。
なお、室内機200の送風機として、送風機101~108を用いても勿論よい。Embodiment 6 FIG.
FIG. 11: is a longitudinal cross-sectional view which shows an example of the air conditioning apparatus which concerns onEmbodiment 6 of this invention. This FIG. 11 has shown the example which used the air blower 100 which concerns on Embodiment 1 for the indoor unit 200 of an air conditioning apparatus. FIG. 11 shows the left side of the drawing as the front side of the indoor unit 200. Based on FIG. 11, the configuration of the indoor unit 200 will be described.
Of course, thefans 101 to 108 may be used as the fans of the indoor unit 200.
図11は、本発明の実施の形態6に係る空気調和装置の一例を示す縦断面図である。この図11は、実施の形態1に係る送風機100を、空気調和装置の室内機200に用いた例を示している。また、図11は、図の左側を室内機200の前面側として示している。図11に基づいて、室内機200の構成について説明する。
なお、室内機200の送風機として、送風機101~108を用いても勿論よい。
FIG. 11: is a longitudinal cross-sectional view which shows an example of the air conditioning apparatus which concerns on
Of course, the
室内機200は、冷媒を循環させる冷凍サイクルを利用することで室内等の空調対象域に空調空気を供給するものである。この室内機200は、主に、室内空気を内部に吸い込むための吸込口111及び空調空気を空調対象域に供給するための吹出口115が形成されている筐体110と、この筐体110内に収納され、吸込口111から室内空気を吸い込み、吹出口115から空調空気を吹き出す送風機100と、吸込口111から送風機100までの風路に配設され、冷媒と室内空気とで熱交換することで空調空気を作り出す熱交換器114と、を有している。
The indoor unit 200 supplies conditioned air to an air-conditioning target area such as a room by using a refrigeration cycle that circulates refrigerant. This indoor unit 200 mainly includes a casing 110 in which an inlet 111 for sucking indoor air into the interior and an outlet 115 for supplying conditioned air to an air-conditioning target area are formed, and the interior of the casing 110 Is installed in the blower 100 that sucks indoor air from the suction port 111 and blows conditioned air from the blower outlet 115, and is arranged in the air path from the suction port 111 to the blower 100, and exchanges heat between the refrigerant and the indoor air. And a heat exchanger 114 for producing conditioned air.
吸込口111は、筐体110の上部に開口形成されている。吹出口115は、筐体110の下部(より詳しくは、筐体110の前面部下側)に開口形成されている。送風機100は、吸込口111の下流側でかつ、熱交換器114の上流側に配設されている。また、送風機100は、紙面直交方向に例えば3つ並べられている。なお、送風機100の設置数は、あくまでも一例である。要求される風量等に応じて、送風機100の設置数を適宜変更すればよい。
The suction port 111 is formed in the upper part of the housing 110. The air outlet 115 is formed in the lower part of the housing 110 (more specifically, the lower side of the front surface of the housing 110). The blower 100 is disposed on the downstream side of the suction port 111 and on the upstream side of the heat exchanger 114. Further, for example, three blowers 100 are arranged in the direction orthogonal to the paper surface. In addition, the installation number of the air blower 100 is an example to the last. What is necessary is just to change suitably the installation number of the air blower 100 according to the air volume etc. which are requested | required.
熱交換器114は、送風機100の風下側に配置されている。この熱交換器114は、筐体110の前面側に配置された前面側熱交換器114aと、筐体110の背面側に配置された背面側熱交換器114bと、から構成されている。この熱交換器114には、例えばフィンチューブ型熱交換器等を用いるとよい。また、吸込口111には、グリル112やフィルター113が設けられている。さらに、吹出口115には、気流の吹出し方向を制御する機構、例えば図示省略のベーン等が設けられている。
The heat exchanger 114 is disposed on the leeward side of the blower 100. The heat exchanger 114 includes a front side heat exchanger 114 a disposed on the front side of the housing 110 and a back side heat exchanger 114 b disposed on the back side of the housing 110. As this heat exchanger 114, for example, a fin tube heat exchanger or the like may be used. The suction port 111 is provided with a grill 112 and a filter 113. Furthermore, the blower outlet 115 is provided with a mechanism for controlling the blowing direction of the airflow, such as a vane (not shown).
ここで、室内機200内における空気の流れについて簡単に説明する。
まず、室内空気は、送風機100によって筐体110の上部に形成されている吸込口111から室内機200内に流れ込む。このとき、フィルター113によって空気に含まれている塵埃が除去される。この室内空気は、熱交換器114を通過する際、熱交換器114内を流れる冷媒によって加熱又は冷却されて空調空気となる。そして、空調空気は、筐体110の下部に形成されている吹出口115から室内機200の外部、つまり空調対象域に吹き出されるようになっている。 Here, the flow of air in theindoor unit 200 will be briefly described.
First, room air flows into theindoor unit 200 from the suction port 111 formed in the upper part of the housing 110 by the blower 100. At this time, dust contained in the air is removed by the filter 113. When this indoor air passes through the heat exchanger 114, it is heated or cooled by the refrigerant flowing in the heat exchanger 114 to become conditioned air. The conditioned air is blown out of the indoor unit 200 from the air outlet 115 formed in the lower part of the housing 110, that is, to the air-conditioning target area.
まず、室内空気は、送風機100によって筐体110の上部に形成されている吸込口111から室内機200内に流れ込む。このとき、フィルター113によって空気に含まれている塵埃が除去される。この室内空気は、熱交換器114を通過する際、熱交換器114内を流れる冷媒によって加熱又は冷却されて空調空気となる。そして、空調空気は、筐体110の下部に形成されている吹出口115から室内機200の外部、つまり空調対象域に吹き出されるようになっている。 Here, the flow of air in the
First, room air flows into the
このように構成された室内機200(空気調和装置)においては、小形化(薄型化)及び低コスト化が可能な送風機100を用いている。このため、本実施の形態6に係る室内機200は、小型化(薄型化)することが可能となる。また、室内機200を低コスト化することが可能となる。
また、このように構成された室内機200(空気調和装置)においては、送風性能を維持しつつ小型化(薄型化)を図った送風機100を用いている。このため、同サイズで室内機を製作した場合、従来の室内機よりも風量の大きな室内機を得ることができる。 The indoor unit 200 (air conditioner) configured as described above uses theblower 100 that can be reduced in size (thinned) and reduced in cost. For this reason, the indoor unit 200 according to Embodiment 6 can be downsized (thinned). Further, the cost of the indoor unit 200 can be reduced.
Moreover, in the indoor unit 200 (air conditioner) configured as described above, theblower 100 that is downsized (thinned) while maintaining the blowing performance is used. For this reason, when an indoor unit of the same size is manufactured, an indoor unit having a larger air volume than a conventional indoor unit can be obtained.
また、このように構成された室内機200(空気調和装置)においては、送風性能を維持しつつ小型化(薄型化)を図った送風機100を用いている。このため、同サイズで室内機を製作した場合、従来の室内機よりも風量の大きな室内機を得ることができる。 The indoor unit 200 (air conditioner) configured as described above uses the
Moreover, in the indoor unit 200 (air conditioner) configured as described above, the
1 ボス、2 リング状部材、3 主羽根、4 副羽根、5 羽根車、6 筐体、7 回転子、8 固定子、9 突片、10 リング状部材、11 突片、12 モーター、100~108 送風機、110 筐体、111 吸込口、112 グリル、113 フィルター、114 熱交換器、114a 前面側熱交換器、114b 背面側熱交換器、115 吹出口、200 室内機(空気調和装置)、301 ボス(従来)、303 ボス(従来)。
1 Boss, 2 Ring-shaped member, 3 Main blade, 4 Sub blade, 5 Impeller, 6 Housing, 7 Rotor, 8 Stator, 9 Projection, 10 Ring-shaped member, 11 Projection, 12 Motor, 100 ~ 108 blower, 110 housing, 111 suction port, 112 grill, 113 filter, 114 heat exchanger, 114a front side heat exchanger, 114b back side heat exchanger, 115 outlet, 200 indoor unit (air conditioner), 301 Boss (conventional), 303 Boss (conventional).
Claims (6)
- 回転中心となるボス及び該ボスの外周面に設けられた複数の第1の羽根を有する羽根車を備えた送風機において、
前記第1の羽根及び前記第1の羽根に設けられた部材のうち少なくとも一方に支持される第2の羽根を有することを特徴とする送風機。 In a blower provided with an impeller having a boss that is a rotation center and a plurality of first blades provided on an outer peripheral surface of the boss,
A blower comprising a second blade supported by at least one of the first blade and a member provided on the first blade. - 前記第1の羽根の外周部には、これら第1の羽根の外周部を連結するリング状部材が設けられ、
前記第2の羽根は、該リング状部材に支持されていることを特徴とする請求項1に記載の送風機。 On the outer periphery of the first blade, a ring-shaped member that connects the outer periphery of the first blade is provided,
The blower according to claim 1, wherein the second blade is supported by the ring-shaped member. - 前記第2の羽根は、複数の箇所で支持されていることを特徴とする請求項1又は請求項2に記載の送風機。 The blower according to claim 1 or 2, wherein the second blade is supported at a plurality of locations.
- 前記第2の羽根の数は、前記第1の羽根の数の約数又は倍数であり、
前記第2の羽根及び前記第1の羽根は、それぞれの間隔がほぼ均一となるように配置されていることを特徴とする請求項1~請求項3のいずれか一項に記載の送風機。 The number of the second blades is a divisor or multiple of the number of the first blades;
The blower according to any one of claims 1 to 3, wherein the second blades and the first blades are arranged so that their intervals are substantially uniform. - 前記羽根車を回転させるモーターと、
前記羽根車の外周側に所定の空隙を介して設けられた筐体と、
を備え、
前記モーターの回転子は、前記羽根車の外周部に設けられ、
前記モーターの固定子は、前記回転子と対向するように前記筐体に設けられていることを特徴とする請求項1~請求項4のいずれか一項に記載の送風機。 A motor for rotating the impeller;
A housing provided on the outer peripheral side of the impeller via a predetermined gap;
With
The rotor of the motor is provided on the outer periphery of the impeller,
The blower according to any one of claims 1 to 4, wherein a stator of the motor is provided in the casing so as to face the rotor. - 請求項1~請求項5のいずれか一項に記載の送風機を搭載したことを特徴とする空気調和装置。 An air conditioner equipped with the blower according to any one of claims 1 to 5.
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