WO2011092751A1 - Ventilateur et dispositif de climatisation sur lequel est monté le ventilateur - Google Patents

Ventilateur et dispositif de climatisation sur lequel est monté le ventilateur Download PDF

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Publication number
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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WO
WIPO (PCT)
Prior art keywords
blower
blade
blades
air
boss
Prior art date
Application number
PCT/JP2010/000584
Other languages
English (en)
Japanese (ja)
Inventor
山田彰二
森剛
福井智哉
井上正哉
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2010/000584 priority Critical patent/WO2011092751A1/fr
Priority to JP2011551591A priority patent/JPWO2011092751A1/ja
Publication of WO2011092751A1 publication Critical patent/WO2011092751A1/fr

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

Abstract

La présente invention a trait à un ventilateur, dont l'épaisseur peut être réduite tout en conservant les performances de soufflage. Le ventilateur est équipé d'une turbine (5) dotée d'un bossage (1) tenant lieu de centre de rotation, et d'une pluralité d'ailettes principales (3) prévues sur la surface périphérique extérieure du bossage (1). Le ventilateur est également équipé d'ailettes secondaires (4) supportées par au moins les ailettes principales (3) ou des éléments prévus sur les ailettes principales (3).
PCT/JP2010/000584 2010-02-01 2010-02-01 Ventilateur et dispositif de climatisation sur lequel est monté le ventilateur WO2011092751A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2010/000584 WO2011092751A1 (fr) 2010-02-01 2010-02-01 Ventilateur et dispositif de climatisation sur lequel est monté le ventilateur
JP2011551591A JPWO2011092751A1 (ja) 2010-02-01 2010-02-01 送風機及びこの送風機を搭載した空気調和装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2010/000584 WO2011092751A1 (fr) 2010-02-01 2010-02-01 Ventilateur et dispositif de climatisation sur lequel est monté le ventilateur

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WO2011092751A1 true WO2011092751A1 (fr) 2011-08-04

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PCT/JP2010/000584 WO2011092751A1 (fr) 2010-02-01 2010-02-01 Ventilateur et dispositif de climatisation sur lequel est monté le ventilateur

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WO (1) WO2011092751A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10563669B2 (en) 2015-08-10 2020-02-18 Mitsubishi Electric Corporation Fan and air-conditioning device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62152098U (fr) * 1986-03-19 1987-09-26

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61118999U (fr) * 1985-01-14 1986-07-26
JPS6310296U (fr) * 1986-07-04 1988-01-23
JP3087006U (ja) * 2001-12-27 2002-07-19 元山科技工業股▲分▼有限公司 放熱ファンの構造
JP4909111B2 (ja) * 2007-02-14 2012-04-04 株式会社日立産機システム ファンシステム

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62152098U (fr) * 1986-03-19 1987-09-26

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10563669B2 (en) 2015-08-10 2020-02-18 Mitsubishi Electric Corporation Fan and air-conditioning device

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