WO2011102120A1 - インペラとそれを用いた電動送風機および電動送風機を用いた電気掃除機 - Google Patents
インペラとそれを用いた電動送風機および電動送風機を用いた電気掃除機 Download PDFInfo
- Publication number
- WO2011102120A1 WO2011102120A1 PCT/JP2011/000841 JP2011000841W WO2011102120A1 WO 2011102120 A1 WO2011102120 A1 WO 2011102120A1 JP 2011000841 W JP2011000841 W JP 2011000841W WO 2011102120 A1 WO2011102120 A1 WO 2011102120A1
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- WIPO (PCT)
- Prior art keywords
- inducer
- impeller
- blade
- blade portion
- electric blower
- Prior art date
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Classifications
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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
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
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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
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
- F04D17/025—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal comprising axial flow and radial flow stages
Definitions
- the present invention relates to an impeller, an electric blower using the impeller, and an electric vacuum cleaner using the electric blower.
- FIG. 17 is a cross-sectional view of a main part of a conventional electric blower described in Patent Document 1.
- the conventional electric blower includes an electric motor 7 and an impeller 121 that generates an airflow provided on a rotating shaft of the electric motor 7, and the impeller 121 includes a blade portion 125a and a substantially conical hub 125b. It is comprised with the inducer 125 which consists of.
- the impeller 121 is rotationally driven by the electric motor 7, and the airflow discharged from the impeller 121 is rectified by the air guide 8.
- the impeller 121 and the air guide 8 are enclosed in a fan case 9.
- FIG. 18 is a cutaway view of the impeller of the electric blower.
- the impeller 121 corresponds to a flat plate-shaped rear shroud 122, a substantially umbrella-shaped front shroud 123, a plurality of blades 124, and an air inlet 123 a provided in the center of the front shroud 123.
- the resin inducer 125 is provided.
- the blade 124 is attached to the rear shroud 122 and the front shroud 123 made of sheet metal by caulking.
- the inducer 125 includes a substantially conical hub 125b and a plurality of blade portions 125a formed on the hub 125b.
- the airflow flowing from the intake port 123a of the front shroud 123 to the blade 124 side through the blade portion 125a of the inducer 125 is rectified by the substantially conical hub 125b.
- FIG. 19 is a plan view for explaining a method of manufacturing an impeller inducer of a conventional electric blower.
- FIG. 20 is a cross-sectional view illustrating a conventional method for manufacturing an inducer for an electric blower.
- the inducer 125 includes a slide mold 131 that slides radially in the outer circumferential direction corresponding to the shape of the plurality of blade portions 125a, a core 132 and a cavity that are movable in the vertical direction. It is manufactured by resin molding using a mold made of 133.
- An impeller according to the present invention includes a front shroud having an air inlet, a rear shroud provided to face the front shroud, and a plurality of first hubs provided around a first hub portion provided between the front shroud and the rear shroud.
- a first inducer having one blade portion
- a second inducer having a plurality of second blade portions connected to the first blade portion of the first inducer and provided around the second hub portion;
- a plurality of blades are connected to the second blade portion of the inducer.
- an electric blower with low noise and excellent suction performance can be provided.
- the vacuum cleaner of the present invention uses the above-described electric blower, and can realize a vacuum cleaner with high suction performance and low noise.
- FIG. 1 is a cutaway perspective view illustrating a configuration of an impeller according to Embodiment 1 of the present invention.
- FIG. 2 is a perspective view of the impeller inducer according to the first exemplary embodiment of the present invention.
- 3 is a view taken along the line 3-3 in FIG. 2 of the inducer constituting the impeller according to the first embodiment of the present invention.
- FIG. 4 is a plan view of the first inducer of the impeller according to the first embodiment of the present invention.
- FIG. 5 is a perspective view showing a second inducer of the impeller according to the first embodiment of the present invention.
- FIG. 6 is a cross-sectional view illustrating a method for manufacturing the first inducer of the impeller according to the first embodiment of the present invention.
- FIG. 1 is a cutaway perspective view illustrating a configuration of an impeller according to Embodiment 1 of the present invention.
- FIG. 2 is a perspective view of the impeller inducer according to the first exemplary embodiment of the present invention. 3
- FIG. 7 is a plan view for explaining the method for manufacturing the second inducer of the impeller according to the first embodiment of the present invention.
- FIG. 8 is a cross-sectional view illustrating a method for manufacturing the second inducer of the impeller according to the first embodiment of the present invention.
- FIG. 9 is a view taken along line 3-3 in FIG. 2 of the inducer constituting the impeller according to the second embodiment of the present invention.
- FIG. 10 is an arrow view of the inducer taken along line 3-3 in FIG. 2 of the impeller according to Embodiment 3 of the present invention.
- FIG. 11 is a perspective view of an inducer constituting the impeller according to the fourth embodiment of the present invention.
- FIG. 12 is a perspective view of the first inducer in the fourth embodiment of the present invention.
- FIG. 13 is a partial cross section figure explaining the electric blower using the impeller of another example in Embodiment 4 of this invention.
- FIG. 14A is a side view illustrating the shape of the first inducer before the change that constitutes the impeller according to the fifth embodiment of the present invention.
- FIG. 14B is a side view for explaining the shape of the changed first inducer constituting the impeller according to the fifth embodiment of the present invention.
- FIG. 15A is a side view illustrating the shape of the first inducer before the change that constitutes the impeller according to the sixth embodiment of the present invention.
- FIG. 15B is a side view for explaining the shape of the changed first inducer constituting the impeller according to the sixth embodiment of the present invention.
- FIG. 14A is a side view illustrating the shape of the first inducer before the change that constitutes the impeller according to the sixth embodiment of the present invention.
- FIG. 15B is a side view for explaining the shape of the changed first inducer constituting the impeller according to the sixth embodiment of the
- FIG. 16 is a diagram showing an overall configuration of the electric vacuum cleaner according to Embodiment 7 of the present invention.
- FIG. 17 is a cross-sectional view of a main part of a conventional electric blower.
- FIG. 18 is a cutaway view of an impeller of a conventional electric blower.
- FIG. 19 is a plan view for explaining a method of manufacturing an impeller inducer of a conventional electric blower.
- FIG. 20 is a cross-sectional view illustrating a conventional method for manufacturing an inducer for an electric blower.
- FIG. 1 is a cutaway perspective view illustrating a configuration of an impeller according to Embodiment 1 of the present invention.
- FIG. 2 is a perspective view of the impeller inducer according to the first exemplary embodiment of the present invention.
- FIG. 3 is an arrow view of the inducer taken along line 3-3 of FIG. 2 of the impeller according to the first embodiment of the present invention.
- FIG. 4 is a plan view of the first inducer of the impeller according to the first embodiment of the present invention.
- FIG. 5 is a perspective view showing a second inducer of the impeller according to the first embodiment of the present invention.
- the configuration of the electric blower with the impeller attached to the electric motor is basically the same as the configuration of the conventional electric blower, and will be described with reference to FIG.
- an impeller 21 that is rotationally driven by an electric motor 7 (see FIG. 17) includes a front shroud 23, a rear shroud 22, a first inducer 26, and a second inducer 27. And a blade 24 connected to the second inducer 27.
- the first inducer 26 has a first hub 25b1 and a first blade portion 25a1 formed on the outer peripheral surface of the first hub 25b1.
- the second inducer 27 includes a second hub 25b2 and a second blade portion 25a2 formed on the outer peripheral surface of the second hub 25b2.
- the front shroud 23 and the rear shroud 22 are formed of, for example, a sheet metal or the like, and are arranged to face each other at a predetermined interval.
- a first inducer 26 and a second inducer 27 are provided between the front shroud 23 and the rear shroud 22, and a plurality of second inducers 27 a 2 corresponding to the second blade portion 25 a 2 of the second inducer 27 are provided.
- a blade 24 is provided. The blade 24 is attached to the rear shroud 22 and the front shroud 23 by, for example, caulking.
- the first inducer 26 is provided in the center corresponding to the air inlet 23a of the front shroud 23, and is provided on the outer surface of the first hub 25b1 having a substantially conical shape (including a conical shape) and the first hub 25b1. Along with, for example, nine first blade portions 25a1 arranged uniformly.
- the second inducer 27 is provided at the center corresponding to the air inlet 23a of the front shroud 23, and is formed on the outer peripheral surface of the second hub 25b2 having a substantially conical shape (including a conical shape) and the second hub 25b2. Along with, for example, nine second blade portions 25a2 arranged uniformly.
- the first inducer 26 and the second inducer 27 are connected to each other via the joint surface of the first blade portion 25a1 and the second blade portion 25a2 and the joint surface of the first hub 25b1 and the second hub 25b2.
- an inducer 25 is configured.
- the inducer 25 constituted by the first inducer 26 and the second inducer 27 is a surface perpendicular to the axis of the electric motor 7 of FIG. 17, that is, the rear shroud 22.
- the 1st inducer 26 is provided in the inlet 23a side of the front shroud 23, and the 2nd inducer 27 (refer FIG. 5) is provided in the rear surface shroud 22 side.
- the joint portion 28 which is a joint surface between the first inducer 26 and the second inducer 27 is hermetically joined by, for example, an adhesive. Thereby, the leakage of the airflow from the gap between the first inducer 26 and the second inducer 27 can be prevented, and the blowing performance of the electric blower can be improved.
- the first blade portion 25a1 and the second blade portion 25a2 are preferably formed in a three-dimensional curved shape so as to rectify the airflow flowing from the air inlet 23a of the front shroud 23 to the blade 24 side.
- first blade portion 25a1 of the connected first inducer 26 and the second blade portion 25a2 of the second inducer 27, and the first blade portion 25a1 and the second inducer of the adjacent first inducer 26 are connected.
- 27 second blade portions 25a2 are formed so as to overlap each other.
- the number of the first blade portions 25a1 and the second blade portions 25a2 is nine as an example, but the present invention is not limited to this. For example, it may be 7 or more.
- the frequency of the generated high-frequency sound is as high as about 4.5 KHz. In the case of seven sheets, the frequency of the generated high frequency sound is about 3.5 KHz. The frequency of these high-frequency sounds is difficult to hear because the sensitivity of the human ear is low. Therefore, an electric blower with reduced noise can be realized.
- first blade portions 25a1 and second blade portions 25a2 are less than 7, for example, when the rotational speed is about 30000 r / min, the frequency of the generated high-frequency sound is about 3.0 KHz. .
- These high-frequency sounds have a particularly high sensitivity within the audible range of the human ear, so that they are easy to hear. Therefore, it becomes a high and very annoying high-frequency sound expressed as “Kean”, which gives the user an unpleasant feeling.
- the distance between the adjacent first blade portions 25a1 and the second blade portions 25a2 becomes too close, so that the generation of turbulent flow and airflow It tends to cause peeling from the wall surface.
- the loss of fluid energy such as airflow increases, and the blowing efficiency decreases.
- FIG. 6 is a cross-sectional view illustrating a method for manufacturing the first inducer of the impeller according to the first embodiment of the present invention.
- FIG. 7 is a plan view for explaining the method for manufacturing the second inducer of the impeller according to the first embodiment of the present invention.
- FIG. 8 is a cross-sectional view illustrating a method for manufacturing the second inducer of the impeller according to the first embodiment of the present invention.
- the mold for producing the first inducer 26 shown in FIG. 4 is composed of two plates, a core 32a and a cavity 33a. Then, for example, a resin such as polyethylene terephthalate or polybutylene terephthalate is placed between the core 32a and the cavity 33a, and the resin is pressurized in the direction indicated by the arrow in FIG. 6 to produce the first inducer 26. .
- the 1st inducer 26 can be easily shape
- the mold of the second inducer 27 shown in FIG. 5 is, for example, 40 degrees when the number of the second blade portions 25a2 of the second inducer 27 is nine. It is composed of a nine-direction slide mold 31, a core 32b, and a cavity 33b that are divided at angular intervals. Then, for example, a resin such as polyethylene terephthalate or polybutylene terephthalate is installed between the core 32b and the cavity 33b, and the resin is pressurized in the direction indicated by the arrow in FIG. 8 and slid in the direction indicated by the arrow in FIG. The second inducer 27 is manufactured by sliding the mold 31 toward the center and processing the resin.
- a resin such as polyethylene terephthalate or polybutylene terephthalate
- the second inducer 27 is manufactured by moving the slide mold 31, the core 32b, and the cavity 33b in the opening direction.
- the second inducer 27 having the second blade portion 25a2 having a complicated shape can be easily molded by the slide mold 31 that is divided into a plurality of pieces that slide radially in the outer circumferential direction.
- the inducer 25 is divided into the first inducer 26 and the second inducer 27, so that the first inducer 26 and the second inducer 27 are respectively separated. Can be molded with a mold. Thereafter, when the impeller 21 is assembled, the inducer 25 is produced by combining the first inducer 26 and the second inducer 27 which are separately molded and produced. Thereby, the inducer 25 in which the adjacent first blade portion 25a1 and second blade portion 25a2 overlap can be easily manufactured. Further, the inducer 25 having a multi-blade shape such as nine blades 25a1 and 25a2 can be manufactured at low cost and with high productivity.
- the first inducer 26 and the second inducer 27 have been described using an example in which a resin material is processed by mold molding, but the present invention is not limited to this.
- the first inducer 26 and the second inducer 27 may be made of a metal material by using a method such as die casting or sintering. Thereby, an inducer excellent in heat resistance and processing accuracy can be produced.
- an impeller having an inducer 25 having a complicated shape and a large number of blade portions can be easily realized.
- wing parts, and the vacuum cleaner using an electric blower can be improved.
- the frequency of high-frequency sound generated by the blades is moved from an annoying frequency region to a high frequency region (a frequency region with low human ear sensitivity).
- noise reduction of the electric blower provided with the impeller and the electric vacuum cleaner using the electric blower can be realized.
- the impeller 21 connected to the electric motor rotates at high speed, and the airflow is sucked from the intake port 23a of the front shroud 23 of the impeller 21.
- the sucked airflow passes through an internal passage surrounded by the front shroud 23, the inducer 25, and the rear shroud 22, and is pushed out to the blade 24 side.
- the pushed airflow passes through an inner passage surrounded by the front shroud 23, the rear shroud 22, and the blade 24, and is discharged from the outer peripheral portion of the impeller 21.
- the air current flows from the longitudinal direction of the impeller 21 to the lateral direction along the three-dimensional curved surface formed by the first blade portion 25a1, the second blade portion 25a2, and the first hub 25b1 and the second hub 25b2. Flows smoothly. Thereby, it is possible to sufficiently suppress the occurrence of pressure loss in the impeller 21.
- the electric blower of the present embodiment includes at least the impeller 21 shown in FIG. 1 that is rotationally driven by the electric motor 7, the air guide 8 that rectifies the airflow discharged from the impeller 21, and the impeller 21 and the air guide 8. It consists of a fan case 9.
- the impeller 21 includes a front shroud 23, a rear shroud 22, an inducer 25 having a first inducer 26 and a second inducer 27, and a blade 24 connected to the second inducer 27. ing.
- the first inducer 26 is a first blade having a substantially conical first hub 25 b 1 and seven or more blades formed on the outer peripheral surface of the first hub 25 b 1, for example. Part 25a1.
- the second inducer 27 is a second blade portion having a substantially conical second hub 25 b 2 and, for example, seven or more blades formed on the outer peripheral surface of the second hub 25 b 2. 25a2.
- the impeller 21 of the present embodiment by using the impeller 21 of the present embodiment, the noise in the annoying high frequency sound region is reduced, and the turbulent flow that easily occurs inside the impeller 21 and the separation of the airflow from the wall surface are prevented, thereby improving the blowing efficiency.
- An excellent electric blower can be realized.
- a vacuum cleaner having a high suction performance with a low driving sound can be realized.
- FIG. 9 is a view taken along line 3-3 in FIG. 2 of the inducer constituting the impeller according to the second embodiment of the present invention.
- the impeller of the present embodiment is provided with a groove 29 on at least one joint surface of the joint portion 28 between the first blade portion 25a1 of the first inducer 26 and the second blade portion 25a2 of the second inducer 27. This is different from the first embodiment. Other configurations are the same as those in the first embodiment.
- the inducer 25 of the impeller 21 in the present embodiment has a groove on the joint surface along the joint portion 28 of the first blade portion 25 a 1 and the second inducer 27 of the first inducer 26. 29 is provided. Then, an adhesive is applied to the groove 29 to bond the first blade portion 25 a 1 of the first inducer 26 and the second inducer 27. At this time, since the adhesive flows along the grooves 29, the adhesive can be efficiently applied and the bonding workability is improved. Further, since the surface tension acts strongly on the adhesive applied to the groove 29, it is possible to prevent the adhesive from overflowing to the surface through which the airflow of the first blade portion 25a1 and the second blade portion 25a2 flows.
- the groove 29 is provided on either the first blade portion 25a1 side of the first inducer 26 or the second blade portion 25a2 side of the second inducer 27 has been described. However, it is not limited to this, and it may be provided in both.
- channel 29 was demonstrated in the example provided in the joint surface of either the 1st blade
- one of the grooves 29 on the first blade portion 25a1 side of the first inducer 26 or the second blade portion 25a2 side of the second inducer 27 is provided, and a convex portion that fits into the groove 29 is provided on the other side.
- a configuration in which connection is established by fitting may be employed. Thereby, since it is not necessary to consider the protrusion of an adhesive etc., productivity improves.
- channel 29 was demonstrated in the example provided in the joint surface of either the 1st blade
- a groove 29a may be further provided on the surface side of the first blade portion 25a1 or the second blade portion 25a2 through which the airflow flows in the leftward direction).
- FIG. 10 is a view taken along line 3-3 in FIG. 2 of the inducer constituting the impeller according to the third embodiment of the present invention.
- the impeller of the present embodiment is implemented in that at least one groove 29b is provided on one joint surface of the joint portion 28 between the first hub 25b1 of the first inducer 26 and the second hub 25b2 of the second inducer 27.
- Different from Form 2. Other configurations are the same as those of the second embodiment.
- the inducer 25 of the impeller 21 in the present embodiment has a groove 29 b on the joint surface along the joint portion 28 between the first hub 25 b 1 and the second inducer 27 of the first inducer 26. , Discrete or all around.
- FIG. 11 is a perspective view of an inducer constituting the impeller according to the fourth embodiment of the present invention.
- FIG. 12 is a perspective view of the first inducer in the fourth embodiment of the present invention.
- the impeller 21 of the present embodiment is different from the first embodiment in that a ring portion 19 that connects the plurality of first blade portions 25a1 of the first inducer 26 is provided.
- Other configurations are the same as those in the first embodiment.
- a plurality of (for example, nine) first blade portions 25a1 of the first inducer 26 of the impeller 21 in the present embodiment are connected by, for example, a metal ring portion 19, The first inducer 26 is configured.
- the mechanical strength of the first inducer 26 can be increased. As a result, it is possible to prevent the first inducer 26 from being warped or deformed, and to realize the first inducer 26 having high accuracy and excellent shape stability.
- the ring portion 19 is formed of a metal material.
- the present invention is not limited to this.
- the ring portion 19 may be formed on the upper outer peripheral end portion of the first inducer 26 by integral molding with the first blade portion 25a1 and the first hub 25b1 of the first inducer 26.
- the present invention is not limited to this.
- the protrusion 20 may be provided on the upper surface of the ring portion 19 (the side opposite to the surface on which the first blade portion 25 a 1 is provided).
- this projection part 20 exhibits a high effect, when mounting the impeller 21 in an electric blower.
- FIG. 13 is a partial cross-sectional view illustrating an electric blower using another example of the impeller according to Embodiment 4 of the present invention.
- an acute-angled protrusion 20 is formed on the upper surface of the ring portion 19 of the first inducer 26 of the impeller 21.
- the seal portion 11 made of, for example, an elastic body, which is included in the fan case 9, is deformed and bitten through the protrusion portion 20 to be fixed to the seal portion 11.
- the projection portion 20 and the seal portion 11 can be pressurized with a uniform load and connected to the seal portion 11.
- the projection part 20 and the seal part 11 can be connected with high airtightness.
- an electric blower that prevents leakage of the airflow flowing into the impeller and does not lower the blowing efficiency, and a vacuum cleaner using the electric blower.
- the inducer of the fifth embodiment is configured such that the inclination angle of the first blade portion of the first inducer is different from the inclination angle of the second blade portion of the second inducer.
- FIG. 14A is a side view illustrating the shape of the first inducer before the change that constitutes the impeller according to the fifth embodiment of the present invention.
- FIG. 14B is a side view for explaining the shape of the changed first inducer constituting the impeller according to the fifth embodiment of the present invention.
- the inclination angle of the first blade portion 25a1 of the first inducer 26 is changed to ⁇ 2 in order to realize the air volume Q2 and the rotational speed N2.
- the second inducer 27 is joined to the second blade portion 25a2 formed with the inclination angle ⁇ 1.
- wing part 25a2 are formed does not change with 40 degree
- the predetermined performance can be realized only by changing the inclination angle of the first blade portion 25a1 of the first inducer 26 that most affects the characteristics of the inducer 25. Therefore, since it is realizable only by newly producing only the metal mold
- the example of changing the mold of the first inducer has been described.
- the mold of the second inducer may be changed, and the same effect can be obtained.
- FIG. 15A is a side view illustrating the shape of the first inducer before the change constituting the impeller according to the sixth embodiment of the present invention.
- FIG. 15B is a side view for explaining the shape of the changed first inducer constituting the impeller according to the sixth embodiment of the present invention.
- the height of the first blade portion 25a1 of the first inducer 26 is changed to H2 in order to realize the air volume Q2 and the rotational speed N2. Then, it is joined to the second blade portion 25a2 of the second inducer 27. Thereby, the performance of the electric blower after the change can be realized only by changing the inclination angle of the first blade portion 25a1 of the first inducer 26.
- a predetermined performance can be realized only by changing the height of the first blade portion 25a1 of the first inducer 26 that most affects the characteristics of the inducer 25. Therefore, since it is realizable only by newly producing only the metal mold
- the example of changing the mold of the first inducer has been described.
- the mold of the second inducer may be changed, and the same effect can be obtained.
- FIG. 16 is a diagram showing an overall configuration of the electric vacuum cleaner according to Embodiment 7 of the present invention.
- the electric vacuum cleaner in the present embodiment is provided at the vacuum cleaner main body 34, the hose 35 communicating with the vacuum cleaner main body 34, the extension pipe 36 communicating with one end of the hose 35, and the end of the hose 35. And a floor suction tool 38 communicating with one end of the extension pipe 36.
- An electric blower 39 having an impeller that generates a suction force is built in the cleaner body 34.
- a dust collection chamber 40 for storing the sucked dust is provided on the upstream side of the electric blower 39.
- the electric blower including any of the impellers 21 described in the first to sixth embodiments is built in as the electric blower 39.
- the user holds the operation handle 37 and starts to operate the vacuum cleaner. Then, a suction force is generated from the electric blower 39, and dust is sucked together with air from the floor suction tool 38 that moves the floor surface.
- the sucked dust flows together with air through the extension pipe 36 and the hose 35 to the dust collecting chamber 40, and the dust and air are separated in the dust collecting chamber 40.
- the separated dust is stored in the dust collection chamber 40, and only air is sucked by the electric blower 39.
- the sucked air passes through the electric blower 39, passes through the cleaner main body 34, and is discharged to the outside of the cleaner main body 34.
- the electric blower 39 equipped with the impeller with improved air blowing efficiency according to the present invention can realize a comfortable vacuum cleaner with high suction performance and no harsh noise that is excellent in operability. .
- the present invention is useful for vacuum cleaners using electric blowers, household electrical appliances, industrial equipment, and the like that require improvements in the efficiency of air volume and rotational speed and reduction in noise.
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Abstract
Description
図1は、本発明の実施の形態1におけるインペラの構成を説明する破断斜視図である。図2は、本発明の実施の形態1におけるインペラのインデューサの斜視図である。図3は、本発明の実施の形態1におけるインペラの図2の3-3線におけるインデューサの矢視図である。図4は、本発明の実施の形態1におけるインペラの第1インデューサの平面図である。図5は、本発明の実施の形態1におけるインペラの第2インデューサを示す斜視図である。なお、インペラを電動機に取り付けた電動送風機の構成は、従来の電動送風機の構成と基本的には同様であるので、図17を参照しながら説明する。
図9は、本発明の実施の形態2におけるインペラを構成するインデューサの図2の3-3線矢視図である。
図10は、本発明の実施の形態3におけるインペラを構成するインデューサの図2の3-3線矢視図である。
図11は、本発明の実施の形態4におけるインペラを構成するインデューサの斜視図である。図12は、本発明の実施の形態4における第1インデューサの斜視図である。
以下に、本発明の実施の形態5におけるインペラを構成するインデューサについて図面を用いて説明する。
以下に、本発明の実施の形態6におけるインペラを構成するインデューサについて図面を用いて説明する。
図16は、本発明の実施の形態7における電気掃除機の全体構成を示す図である。
8 エアガイド
9 ファンケース
11 シール部
19 リング部
20 突起部
21,121 インペラ
22,122 後面シュラウド
23,123 前面シュラウド
23a,123a 吸気口
24,124 ブレード
25,125 インデューサ
25a1 第1羽根部
25a2 第2羽根部
25b1 第1ハブ
25b2 第2ハブ
26 第1インデューサ
27 第2インデューサ
28 接合部
29,29a,29b 溝
30 付け根
31,131 スライド金型
32a,32b,132 コア
33a,33b,133 キャビティ
34 掃除機本体
35 ホース
36 延長管
37 操作ハンドル
38 床用吸込具
39 電動送風機
40 集塵室
125a 羽根部
125b ハブ
Claims (15)
- 吸気口を有する前面シュラウドと、
前記前面シュラウドと対向して設けられる後面シュラウドと、
前記前面シュラウドと前記後面シュラウドとの間に設けられる第1ハブ部の周囲に設けられた複数の第1羽根部を有する第1インデューサと、
前記第1インデューサの前記第1羽根部に接続され、第2ハブ部の周囲に設けられた複数の第2羽根部を有する第2インデューサと、
前記第2インデューサの前記第2羽根部と接続され、複数枚のブレードと、
を備えたインペラ。 - 前記第1インデューサの前記第1羽根部と隣接する前記第2インデューサの前記第2羽根部は互いにオーバラップする請求項1に記載のインペラ。
- 前記第1インデューサの前記第1羽根部とおよび前記第2インデューサの前記第2羽根部の枚数は、少なくとも7枚である請求項1に記載のインペラ。
- 前記第1インデューサと前記第2インデューサは接合部を介して接続される請求項1に記載のインペラ。
- 前記接合部に溝を設けた請求項4に記載のインペラ。
- 前記第1羽根部または前記第2羽根部の反回転方向側の表面に溝を設けた請求項5に記載のインペラ。
- 前記接合部は前記第1インデューサの前記第1羽根部と前記第2インデューサの前記第2羽根部との接続面である請求項4に記載のインペラ。
- 前記接続面はさらに前記第1ハブ部と前記第2ハブ部との接続面である請求項7に記載のインペラ。
- 前記第1インデューサの複数の前記第1羽根部を互いにリング部で接続した請求項1に記載のインペラ。
- 前記第1インデューサと前記リング部とは一体成型された請求項9記載のインペラ。
- 前記リング部の外周に突起部を設けた請求項9に記載のインペラ。
- 前記第1インデューサの前記第1羽根部の傾斜角度と前記第2インデューサの前記第2羽根部との傾斜角度とが異なる請求項1に記載のインペラ。
- 前記第1インデューサの前記第1羽根部の軸方向の高さと前記第2インデューサの前記第2羽根部との軸方向の高さとが異なる請求項1に記載のインペラ。
- 請求項1に記載のインペラと電動機とを備えた電動送風機。
- 請求項14に記載の電動送風機を用いた電気掃除機。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011800097904A CN102762873A (zh) | 2010-02-17 | 2011-02-16 | 叶轮、使用了叶轮的电动鼓风机及使用了电动鼓风机的吸尘器 |
US13/519,003 US20120294739A1 (en) | 2010-02-17 | 2011-02-16 | Impeller, electric air blower using same, and electric cleaner using electric air blower |
JP2012500505A JP5796165B2 (ja) | 2010-02-17 | 2011-02-16 | インペラとそれを用いた電動送風機および電動送風機を用いた電気掃除機 |
EP11744411.7A EP2538087A4 (en) | 2010-02-17 | 2011-02-16 | DRIVER, ELECTRIC BLOWER THEREOF AND ELECTRIC CLEANER WITH ELECTRIC BLOWER |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010032211 | 2010-02-17 | ||
JP2010-032211 | 2010-02-17 | ||
JP2010-033123 | 2010-02-18 | ||
JP2010033123 | 2010-02-18 | ||
JP2010-069605 | 2010-03-25 | ||
JP2010069605 | 2010-03-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011102120A1 true WO2011102120A1 (ja) | 2011-08-25 |
Family
ID=44482725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/000841 WO2011102120A1 (ja) | 2010-02-17 | 2011-02-16 | インペラとそれを用いた電動送風機および電動送風機を用いた電気掃除機 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20120294739A1 (ja) |
EP (1) | EP2538087A4 (ja) |
JP (1) | JP5796165B2 (ja) |
CN (1) | CN102762873A (ja) |
MY (1) | MY162293A (ja) |
WO (1) | WO2011102120A1 (ja) |
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US11028856B2 (en) | 2016-05-09 | 2021-06-08 | Ihi Corporation | Centrifugal compressor impeller |
WO2021134818A1 (zh) * | 2020-01-03 | 2021-07-08 | 江苏大学 | 一种高抗空化性能的诱导轮 |
CN114738324A (zh) * | 2022-04-07 | 2022-07-12 | 北京涵智博雅能源科技有限公司 | 入口导叶调整装置及离心压缩机 |
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US10378509B2 (en) * | 2017-10-06 | 2019-08-13 | Iap, Inc. | Turbine rotor for redirecting fluid flow including sinuously shaped blades and a solid conical center core |
CA2997766C (en) * | 2018-03-08 | 2019-10-08 | Branko Mizerit | Vortex acceleration wind energy tower |
CN109763997A (zh) * | 2018-12-30 | 2019-05-17 | 上海朴渡信息科技有限公司 | 一种吸尘器风机的轮毂部件 |
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Cited By (10)
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US11028856B2 (en) | 2016-05-09 | 2021-06-08 | Ihi Corporation | Centrifugal compressor impeller |
KR20180025663A (ko) * | 2016-09-01 | 2018-03-09 | 삼성전자주식회사 | 청소기 |
KR102061517B1 (ko) | 2016-09-01 | 2020-02-11 | 삼성전자주식회사 | 청소기 |
US11297989B2 (en) | 2016-09-01 | 2022-04-12 | Samsung Electronics Co., Ltd. | Cleaner |
US12075965B2 (en) | 2016-09-01 | 2024-09-03 | Samsung Electronics Co., Ltd. | Cleaner |
WO2018078811A1 (ja) * | 2016-10-28 | 2018-05-03 | 三菱電機株式会社 | 遠心羽根車、電動送風機、電気掃除機およびハンドドライヤー |
JPWO2018078811A1 (ja) * | 2016-10-28 | 2019-09-05 | 三菱電機株式会社 | 遠心羽根車、電動送風機、電気掃除機およびハンドドライヤー |
WO2021134818A1 (zh) * | 2020-01-03 | 2021-07-08 | 江苏大学 | 一种高抗空化性能的诱导轮 |
CN114738324A (zh) * | 2022-04-07 | 2022-07-12 | 北京涵智博雅能源科技有限公司 | 入口导叶调整装置及离心压缩机 |
CN114738324B (zh) * | 2022-04-07 | 2023-09-22 | 北京涵智博雅能源科技有限公司 | 入口导叶调整装置及离心压缩机 |
Also Published As
Publication number | Publication date |
---|---|
US20120294739A1 (en) | 2012-11-22 |
EP2538087A4 (en) | 2015-01-21 |
EP2538087A1 (en) | 2012-12-26 |
JP5796165B2 (ja) | 2015-10-21 |
JPWO2011102120A1 (ja) | 2013-06-17 |
MY162293A (en) | 2017-05-31 |
CN102762873A (zh) | 2012-10-31 |
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