CN104757769A - Dryer - Google Patents
Dryer Download PDFInfo
- Publication number
- CN104757769A CN104757769A CN201510002596.3A CN201510002596A CN104757769A CN 104757769 A CN104757769 A CN 104757769A CN 201510002596 A CN201510002596 A CN 201510002596A CN 104757769 A CN104757769 A CN 104757769A
- Authority
- CN
- China
- Prior art keywords
- hair
- blade
- impeller
- dryer
- plate
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D20/00—Hair drying devices; Accessories therefor
- A45D20/04—Hot-air producers
- A45D20/08—Hot-air producers heated electrically
- A45D20/10—Hand-held drying devices, e.g. air douches
- A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
- F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
- F24H3/0423—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between hand-held air guns
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D20/00—Hair drying devices; Accessories therefor
- A45D20/04—Hot-air producers
- A45D20/08—Hot-air producers heated electrically
- A45D20/10—Hand-held drying devices, e.g. air douches
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0052—Details for air heaters
- F24H9/0073—Arrangement or mounting of means for forcing the circulation of air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
- F24H9/1863—Arrangement or mounting of electric heating means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning And Drying Hair (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a dryer configured to send hot air forward along a blowing axis extending in a front-rear direction. The dryer includes a tubular portion, an axial flow impeller located inside the tubular portion, a motor, a heater support portion positioned forward of the axial flow impeller inside the tubular portion, and a heater. The axial flow impeller includes a plurality of blades arranged in a circumferential direction. The heater support portion includes a plurality of plate-shaped portions extending radially outward from the blowing axis in a cross-section perpendicular or substantially perpendicular to the blowing axis. The number of positions at which circumferential positions of radially outer ends of the second edges of the blades and circumferential positions of the plate-shaped portions overlap with each other is always one or less regardless of a rotational position of the axial flow impeller.
Description
Technical field
The present invention relates to a kind of hair-dryer.
Background technology
In the past knownly a kind ofly blow out hot blast to dry up or the hair-dryer of heating target thing.In the flat 6-125810 publication of Japanese Laid-Open Patent, such as describe hair-dryer in the past.Hair hair-dryer in this publication has the body housing of the longer tubular of fore-and-aft direction, fan, motor, straightener(stator) blade and the heater be built in body housing.Heater is wound in the periphery (with reference to 0009 section) of the radial shield radially stretched out from the periphery of insulation inner core.
Need to make fan High Rotation Speed to increase the air output of hair-dryer.But such as in the hair hair-dryer of Japanese Laid-Open Patent 2011-074811 publication, the ratio fan downstream position in body housing is configured with multiple parts such as straightener(stator) blade, heater and radial shield.If make fan High Rotation Speed in this hair hair-dryer, then the wind existed due to fan generation strikes miscellaneous part, and produces the problem of larger noise.
Summary of the invention
The object of this invention is to provide a kind of structure of noise that can reduce wind because impeller produces and miscellaneous part and interfere and formed in the hair-dryer using aial flow impeller.
First aspect illustrated in the application relates to the hair-dryer that a kind of air-supply axis extended along front and back discharges hot blast toward the front, and this hair-dryer has: cylindrical portion, and described cylindrical portion extends vertically around air-supply axis; Aial flow impeller, described aial flow impeller is configured in cylindrical portion; Motor, described motor makes impeller rotate centered by axis of blowing; Heater support, described heater support is configured in the ratio impeller position on the front in cylindrical portion; And heater, described heater is supported by heater support in cylindrical portion.Impeller has the multiple blades circumferentially arranged, heater support have with multiple plate-like portions of extending towards radial outside from axis of blowing on the cross section of air-supply axis vertical take-off.Two ora terminalis of the circumference of blade have the first ora terminalis and compare second ora terminalis of the first ora terminalis by axis direction front of blowing, regardless of the position of rotation of impeller, the overlapping part between the circumferential position of the radial outer end of the second ora terminalis of blade and the circumferential position of plate-like portion is all sentence down.
In preferred hair-dryer, regardless of the position of rotation of impeller, the central authorities of ratio second ora terminalis of blade lean on the overlapping part between the circumferential position of the part of radial outside and the circumferential position of plate-like portion to be all sentence down.
In preferred hair-dryer, multiple blade and multiple plate-like portion configure respectively in the circumferential at equal intervals, and the number of the plate-like portion that the number of the blade that impeller has and heater support have is relatively prime.
In preferred hair-dryer, if the number of plate-like portion that heater support has is Na, the number of the blade that impeller has is being combined as of Nb, Na and Nb, Na=4, Nb=5; Na=4, Nb=7; Na=6, Nb=5; Or Na=6, Nb=7.
In preferred hair-dryer, than impeller on the front, than heater support rearward and than motor by the position of radial outside, also there are the multiple stator blades circumferentially arranged.
In preferred hair-dryer, regardless of the position of rotation of impeller, the overlapping part between the circumferential position of the radial outer end of the second ora terminalis of blade and the circumferential position of stator blade is all sentence down.
In preferred hair-dryer, multiple blade and multiple stator blade configure respectively in the circumferential at equal intervals, and the number of the number of blade that has of impeller and stator blade is relatively prime.
In preferred hair-dryer, the number of stator blade is the integral multiple of the number of the plate-like portion that heater support has.
In preferred hair-dryer, at least local is overlapping between the ora terminalis in axis direction front of blowing for the ora terminalis of all plate-like portions that heater support has at air-supply axis direction rear and stator blade.
In preferred hair-dryer, multiple blade configures with unequal interval in the circumferential.
First aspect according to the application, the wind of discharging toward the front from the radial outer end of the second ora terminalis of blade can not strike plate-like portion at plural position simultaneously.Thus, the interference because of plate-like portion and wind is reduced and the noise formed.
Accompanying drawing explanation
Fig. 1 is the longitudinal sectional view of hair-dryer.
Fig. 2 is the sectional view of the hair-dryer observed from the A-A position of Fig. 1.
Fig. 3 is the sectional view of the hair-dryer observed from the B-B position of Fig. 1.
Fig. 4 is the sectional view of the hair-dryer observed from the C-C position of Fig. 1.
The sectional view of the hair-dryer of Fig. 5 involved by the variation observed from the same position with Fig. 4.
The sectional view of the hair-dryer of Fig. 6 involved by the variation observed from the same position with Fig. 4.
The sectional view of the hair-dryer of Fig. 7 involved by the variation observed from the same position with Fig. 4.
The sectional view of the hair-dryer of Fig. 8 involved by the variation observed from the same position with Fig. 4.
The sectional view of the hair-dryer of Fig. 9 involved by the variation observed from the same position with Fig. 4.
Detailed description of the invention
Below, with reference to accompanying drawing, the embodiment illustrated in the present invention is described.In addition, in this application, be defined as " air-supply axis " with the direction of the wind of discharging along hair-dryer.Further, be called " axis " in the direction with air-supply axis being parallel respectively, be called " radial direction " with the direction of air-supply axis vertical take-off, the direction along the circular arc centered by axis of blowing is called " circumference ".Further, in this application, being " front " along air-supply axis with the downstream of wind, is " afterwards " with the upstream side of wind, is described the shape in individual each portion and position relationship.But the object of the fore-and-aft direction defined here does not represent hair-dryer direction in use involved in the present invention.
The overall structure > of the hair-dryer <1. involved by an embodiment
The longitudinal sectional view of the hair-dryer 1 of Fig. 1 involved by one embodiment of the present invention.Fig. 2 is the sectional view of the hair-dryer 1 observed from the A-A position of Fig. 1.Fig. 3 is the sectional view of the hair-dryer 1 observed from the B-B position of Fig. 1.Fig. 4 is the sectional view of the hair-dryer 1 observed from the C-C position of Fig. 1.
This hair-dryer 1 makes impeller 20 rotate for utilizing the power of motor 30, thus discharges the device of hot blast towards axial front.Hair-dryer 1 is such as drying up the hair hair-dryer of the home-use of hair or business.But hair-dryer of the present invention also can as the hair-dryer drying up or heat the object except hair as industrial hair-dryer.As shown in Figure 1, the hair-dryer 1 of present embodiment has casing 10, the impeller 20 of axial-flow type, motor 30, rectification part 40, heater support 50 and heater 60.
Casing 10 has cylindrical portion 11 and lever 12.Cylindrical portion 11 extends in roughly cylindric vertically around the surrounding of air-supply axis 9.Lever 12 extends from the surface of cylindrical portion 11 towards radial outside.Cylindrical portion 11 has air entry 71 in the end of axial rearward direction.Be provided with in air entry 71 for preventing dust from entering into filter 711 in cylindrical portion 11.Further, cylindrical portion 11 has exhaust outlet 72 in the end in axial front.
As shown in Figures 2 to 4, present embodiment cylindrical portion 11 to carry out cutting with the orthogonal plane of air-supply axis 9 time cross sectional shape for circular.But the cross sectional shape of cylindrical portion 11 may also be other shapes such as oval or quadrangle.Further, in the present embodiment, the diameter of cylindrical portion 11 reduces along with towards axial front.But the diameter of cylindrical portion 11 both invariable may also be expands along with towards axial front.Further, the cross sectional shape of cylindrical portion 11 also can change along with towards axial front.
Impeller 20 is for producing towards the parts of the air-flow in axial front by rotating centered by axis 9 of blowing.Impeller 20 is configured in cylindrical portion 11.As shown in Figure 1 and Figure 2, the impeller 20 of present embodiment has the cup portion 21 being positioned at central authorities and the multiple blades 22 extended from cup portion 21 towards radial outside.Cup portion 21 is fixed on the axle 31 of motor 30.Multiple blade 22 circumferentially arranges at the radial outside of cup portion 21.Each blade 22 is relative to axis and peripheral, oblique expansion.
Here, using in circumference two ora terminalis of each blade 22 by the ora terminalis on front side of direction of rotation as the first ora terminalis 221.Further, using in two ora terminalis of the circumference of each blade 22 by the ora terminalis on rear side of direction of rotation as the second ora terminalis 222.In this impeller 20, the second ora terminalis 222 is positioned at than the position of the first ora terminalis 221 by axial front.Therefore, when impeller 20 rotates, produce the wind from the axial rearward direction of impeller 20 towards the axial front of impeller 20.
Further, the single resin component of impeller 20 for being obtained by injection mo(u)lding of present embodiment.But impeller 20 also can be made up of multiple parts.Such as, cup portion 21 and multiple blade 22 may also be the parts of split.Further, impeller 20 may also be and to be formed by material in addition to the resins.
Motor 30 is the mechanism being provided for the power rotated to impeller 20.In the present embodiment, the position in axial front is being leaned on to be configured with motor 30 than impeller 20.But motor 30 is also configurable on than the position of impeller 20 by axial rearward direction.Motor 30 has the axle 31 extended along air-supply axis 9.If CD-ROM drive motor 30, then can produce torque centered by axis 9 of blowing by the magnetic force be configured between coil in motor 30 and magnet.Thus, the axle 31 of motor 30 rotates centered by axis 9 of blowing.
In the present embodiment, motor 30 uses Brushless DC motor.Because Brushless DC motor can not produce the performance degradation caused because of the wearing and tearing of brush, thus the life-span is longer than the life-span of brush motor.Further, Brushless DC motor speed change easier than alternating current motor, and easily reduce power consumption.But, brush motor or alternating current motor also can be used to replace Brushless DC motor.
The rectification part 40 ratio impeller 20 be configured in cylindrical portion 11 leans on axial front and leans on the position of axial rearward direction than heater support 50.Rectification part 40 has along the roughly radial multiple stator blades 41 extended.Multiple stator blade 41 is circumferentially arranging than the position of motor 30 by radial outside.The wind produced by impeller 20 from process between multiple stator blade 41, and transmits towards heater support 50 side.
Heater support 50 is configured in the position of ratio impeller 20, motor 30 and the rectification part 40 in cylindrical portion 11 by axial front.Heater support 50 has four plate-like portions 51 radially expanded centered by axis 9 of blowing.As shown in Figure 4, when the cross section orthogonal with air-supply axis 9 is observed, four plate-like portions 51 are that substantially linear extends respectively from air-supply axis 9 towards radial outside.
In the present embodiment, two support plates 52 are combined formation heater support 50.Two support plates 52 are such as fastened to each other by being entrenched togather by the breach being arranged at each support plate 52.Each support plate 52 comprises the pair of plate-shaped portion 51 extended relative to air-supply axis 9 side facing opposite to each other.Thus, around air-supply axis 9, four plate-like portions 51 are configured with the angle intervals of roughly 90 degree.If combined by the support plate 52 comprising pair of plate-shaped portion 51 like this, then can reduce the components number of heater support 50.But multiple plate-like portions 51 may also be the parts of split each other.
Heater 60 is the thermal source for heating the wind produced by impeller 20.Heater 60 such as uses the heating wire such as the nichrome wire of heating power.Heater 60 is configured in cylindrical portion 11, and is supported by heater support 50.Specifically, heater 60 is hung on the indentation, there being arranged at plate-like portion 51.In addition, heater 60 also can be erected between four plate-like portions 51 by being wrapped in the ora terminalis of the radial outside of plate-like portion 51.
When the power switch of hair-dryer 1 being transferred to connection (ON), provide electric current to motor 30 and heater 60.Thus, motor 30 starts, and axle 31 and the impeller 20 being fixed on axle 31 rotate centered by axis 9 of blowing.Thus, gas is accelerated by multiple blade 22, thus produces towards the wind in axial front in cylindrical portion 11.Further, the wind being transported to front through rectification part 40 from impeller 20 is heated by the heat of heater 60.Further, blown out from exhaust outlet 72 to the front of cylindrical portion 11 by the wind heated.
<2. about the relation > between impeller and heater support
This hair-dryer 1 has the structure of noise of interfering for reducing wind because impeller 20 produces and heater support 50 and being formed.Below, with reference to Fig. 4, this structure is described.In addition, in the diagram, from axial forward observation to the position dotted lines of impeller 20.
As shown in Figure 4, the impeller 20 of present embodiment has five blades 22.Therefore, impeller 20 has five the second ora terminalis 222.The gas accelerated by each blade 22 is concentrated near the radial outer end 223 of the second ora terminalis 222, and discharges from this outer end 223 towards axial front.That is, more towards the air quantity in axial front than other parts from blade 22 towards the air quantity in axial front near the radial outer end 223 of the second ora terminalis 222.
Here, as shown in Figure 4, the circumferential position of the axial rearward end of plate-like portion 51 is set to Pa, by blade 22 the circumferential position of radial outer end 223 of the second ora terminalis 222 be set to Pb.In this hair-dryer 1, when observing in the axial direction, can not be simultaneously overlapping at plural position between circumferential position Pa with circumferential position Pb.That is, no matter the position of rotation of impeller 20, the overlapping part between circumferential position Pa and circumferential position Pb is always one and sentences down.Therefore, the wind of discharging toward the front near the radial outer end 223 of the second ora terminalis 222 can not strike the axial rearward end edge of plate-like portion 51 simultaneously at plural position.Thus reduce the noise formed because of plate-like portion 51 and the interference of wind.
Further, as shown in Figure 4, the circumferential position of the part of radial outside the central authorities of ratio second ora terminalis 222 of blade 22 is leaned on to be set to Pb2.So, in this hair-dryer 1, when observing in the axial direction, can not be simultaneously overlapping at two or more position between circumferential position Pa with circumferential position Pb2.That is, regardless of the position of rotation of impeller 20, the overlapping part between circumferential position Pa and circumferential position Pb2 is always one and sentences down.Therefore, be not only the wind of discharging toward the front from the radial outer end 223 of the second ora terminalis 222 can not clash into plate-like portion 51 simultaneously axial rearward end edge at plural position, and also can not clash into the axial rearward end edge of plate-like portion 51 at plural position from the wind that the central authorities than the second ora terminalis 222 lean on the part of radial outside to blow to front simultaneously.Thus, the noise formed because of plate-like portion 51 and the interference of wind is further reduced.
In addition, if the number of the plate-like portion 51 setting heater support 50 to have is as Na, then in the present embodiment, Na=4.If set Na as even number, then one piece of support plate 52 can be utilized as described above to realize pair of plate-shaped portion 51.But if Na=2, then the angle intervals of adjacent plate-like portion 51 becomes 180 degree, be therefore difficult to set up heater 60 between adjacent plate-like portion 51.Therefore, as utilizing support plate 52 and the minimum number of easy supports heaters 60, in the present embodiment, Na=4.
On the other hand, if the number of the blade 22 setting impeller 20 to have is as Nb, then in the present embodiment, Nb=5.Therefore, the number Nb of blade 22 that has of the number Na of plate-like portion 51 that has of heater support 50 and impeller 20 is relatively prime.Further, four plate-like portions 51 and five blades 22 all configure in the circumferential at equal intervals.If Na and Nb has the common common divisor except 1, then can produce the moment that above-mentioned circumferential position Pa is simultaneously overlapping at plural position with circumferential position Pb2.Further, when observing in the axial direction, between blade 22 and plate-like portion 51, the repetition area of Maximum overlap moment becomes large.If as present embodiment, Na and Nb is set to relatively prime, then, when observing in the axial direction, the repetition area of Maximum overlap moment between blade 22 and plate-like portion 51 can be reduced.Consequently, the noise formed because of the interference between plate-like portion 51 and wind can be reduced further.
<3. about rectification part >
The hair-dryer 1 of present embodiment has rectification part 40 between impeller 20 and heater support 50.Therefore, the wind produced by impeller 20 is rectified by multiple stator blades 41 of rectification part 40 and is discharged towards heater support 50 side.Thus, the interference sound between heater support 50 and wind is further reduced.
Here, as mentioned above, if the circumferential position of the radial outer end 223 of the second ora terminalis 222 of blade 22 is Pb.Further, as shown in Figure 3, if the circumferential position of the axial rearward end edge of stator blade 41 is Pc.In this hair-dryer 1, when observing in the axial direction, circumferential position Pb can not be simultaneously overlapping at plural position with circumferential position Pc.That is, regardless of the position of rotation of impeller 20, position overlapping between circumferential position Pb with circumferential position Pc is always one and sentences down.Therefore, the wind of discharging toward the front near the radial outer end 223 of the second ora terminalis 222 can not strike the axial rearward end edge of stator blade 41 simultaneously at plural position.Thus reduce the interference sound between stator blade 41 and wind.
Further, if the number of the stator blade 41 setting rectification part 40 to have is as Nc, then in the present embodiment, Nc=12.Therefore, the number Nc of stator blade 41 that has of the number Nb of blade 22 that has of impeller 20 and rectification part 40 is relatively prime.Further, 12 stator blades 41 configure in the circumferential at equal intervals.If Nb and Nc has the common common divisor except 1, then can produce the moment that above-mentioned circumferential position Pb is simultaneously overlapping at plural position with circumferential position Pc.Further, when observing in the axial direction, between blade 22 and stator blade 41, the repetition area of Maximum overlap moment becomes large.If as present embodiment, Nb and Nc is set to relatively prime, then, when observing in the axial direction, the repetition area of Maximum overlap moment between blade 22 and stator blade 41 can be reduced.
Further, in the present embodiment, the number Nc=12 of stator blade 41 is just in time three times of the number Na=4 of plate-like portion 51.If like this Nc to be set as the integral multiple of Na, then when observing in the axial direction, all plate-like portions 51 can be overlapped with stator blade 41.So, when observing in the axial direction, stator blade 41 and the area shared by plate-like portion 51 entirety can be reduced.Thereby, it is possible to reduce further the noise formed because of stator blade 41 and wind and the interference between plate-like portion 51 and wind.
<4. variation >
Above, the embodiment illustrated in the present invention is illustrated, but the present invention is not defined as above-mentioned embodiment.
The sectional view of the hair-dryer 1A of Fig. 5 involved by the variation observed from the position identical with Fig. 4.In Fig. 5, from axial forward observation to the position dotted lines of impeller 20A.In the example of fig. 5, the number Na=4 of plate-like portion 51A that has of heater support 50A.Further, the number Nb=7 of blade 22A that has of impeller 20A.Therefore, Na and Nb is relatively prime.Further, four plate-like portion 51A and seven blade 22A all configure in the circumferential at equal intervals.Thus, when observing in the axial direction, the repetition area of the Maximum overlap moment between blade 22A and plate-like portion 51A diminishes.
Further, in the example of fig. 5, when observing in the axial direction, can not be simultaneously overlapping at plural position between the circumferential position Pa of the axial rearward end of plate-like portion 51A and the circumferential position Pb of the radial outer end 223A of the second ora terminalis 222A of blade 22A.That is, regardless of the position of rotation of impeller 20A, the circumferential position Pa position overlapping with circumferential position Pb is always one and sentences down.Therefore, the wind of discharging toward the front near the radial outer end 223A of the second ora terminalis 222A can not strike the axial rearward end edge of plate-like portion 51A simultaneously at plural position.Thus, the interference sound between plate-like portion 51A and wind is reduced.
The sectional view of the hair-dryer 1B of Fig. 6 involved by other variation of observing from the position identical with Fig. 4.In figure 6, from axial forward observation to the position dotted lines of impeller 20B.In the example of fig. 6, the number Na=6 of plate-like portion 51B that has of heater support 50B.Further, the number Nb=5 of blade 22B that has of impeller 20B.Therefore, Na and Nb is relatively prime.Further, six plate-like portion 51B and five blade 22B all configure in the circumferential at equal intervals.Thus, when observing in the axial direction, the repetition area of blade 22B and plate-like portion 51B Maximum overlap moment diminishes.
Further, in the example of fig. 6, when observing in the axial direction, the circumferential position Pa of the axial rearward end of plate-like portion 51B can not be simultaneously overlapping at plural position with the circumferential position Pb of the radial outer end 223B of the second ora terminalis 222B of blade 22B.Namely, regardless of the position of rotation of impeller 20B, position overlapping between circumferential position Pa with circumferential position Pb is always one and sentences down.Therefore, the wind of discharging toward the front near the radial outer end 223B of the second ora terminalis 222B can not strike the axial rearward end edge of plate-like portion 51B simultaneously at plural position.Thus reduce the interference sound between plate-like portion 51B and wind.
The sectional view of the hair-dryer 1C of Fig. 7 involved by other variation of observing from the position identical with Fig. 4.In the figure 7, from axial forward observation to the position dotted lines of impeller 20C.In the example of fig. 7, the number Na=6 of plate-like portion 51C that has of heater support 50C.Further, the number Nb=7 of blade 22C that has of impeller 20C.Therefore, Na and Nb is relatively prime.And six plate-like portion 51C and seven blade 22C all configure in the circumferential at equal intervals.Thus, when observing in the axial direction, the repetition area of blade 22C and plate-like portion 51C Maximum overlap moment diminishes.
Further, in the example of fig. 7, when observing in the axial direction, can not be simultaneously overlapping at plural position between the circumferential position Pa of the axial rearward end of plate-like portion 51C and the circumferential position Pb of the radial outer end 223C of the second ora terminalis 222C of blade 22C.That is, regardless of the position of rotation of impeller 20C, position overlapping between circumferential position Pa with circumferential position Pb is always one and sentences down.Therefore, the wind of discharging toward the front near the radial outer end 223C of the second ora terminalis 222C can not strike the axial rearward end edge of plate-like portion 51C simultaneously at plural position.Thus reduce the interference sound between plate-like portion 51C and wind.
In addition, as shown in Fig. 6 and Fig. 7, if make the number of plate-like portion be six, then, compared with the situation being four with plate-like portion, the angle intervals between adjacent plate-like portion narrows.Therefore, it is possible between adjacent plate-like portion more stably supports heaters.
The sectional view of the hair-dryer 1D of Fig. 8 involved by other variation of observing from the position identical with Fig. 4.In the example of fig. 8, impeller 20D has six blade 22D.But, six blade 22D every two group and be divided into into three groups, in the circumferential near configuration between two blade 22D of each group.Therefore, in the example of fig. 8, the interval of adjacent in the circumferential blade 22D has narrow part and wide part.That is, six blade 22D configure with unequal interval in the circumferential.
In the example of fig. 8, when observing in the axial direction, the circumferential position Pa of the axial rearward end of plate-like portion 51D also can not be simultaneously overlapping at plural position with the circumferential position Pb of the radial outer end 223D of the second ora terminalis 222D of blade 22D.That is, regardless of the position of rotation of impeller 20D, position overlapping between circumferential position Pa with circumferential position Pb is always one and sentences down.Therefore, the wind of discharging toward the front near the radial outer end 223D of the second ora terminalis 222D can not strike the axial rearward end edge of plate-like portion 51D simultaneously at plural position.Thus, the interference sound between plate-like portion 51D and wind is reduced.
In addition, configuration style when being configured with unequal interval in the circumferential by multiple blade is not defined as the example of Fig. 8.The part that the interval of the part that the interval of blade adjacent is in the circumferential narrow and blade adjacent is in the circumferential wide also can configure by the arrangement mode different with Fig. 8.Further, the circumferential interval being included in the multiple blades in an impeller also can be completely different.
The sectional view of the hair-dryer 1E of Fig. 9 involved by other variation of observing from the position identical with Fig. 4.In addition, in Fig. 4 to Fig. 8, eliminate the diagram of rectification part, and in fig .9, depict rectification part 40E in the axial rearward direction of heater support 50E.In the example of figure 9, heater support 50E has four plate-like portion 51E, and rectification part 40E has 12 stator blade 41E.Therefore, the number of stator blade 41E is just in time three times of the number of plate-like portion 51E.Further, in the example of figure 9, between the ora terminalis of the axial rearward direction of all plate-like portion 51E and the ora terminalis 411E in the axial front of stator blade 41E, at least local is overlapping.So, when observing in the axial direction, the ora terminalis 411E in the axial front of stator blade 41E and the area shared by plate-like portion 51E entirety can be reduced further.Further, the wind of discharging towards heater support 50E side between stator blade 41E not easily clashes into plate-like portion 51E.Therefore, further reduce because of stator blade 41E and wind and the interference between plate-like portion 51E and wind and the noise formed.
In addition, in above-mentioned embodiment and variation, multiple stator blade configures in the circumferential at equal intervals, but multiple stator blade also can configure with unequal interval in the circumferential.Further, also rectification part can be omitted, need not across rectification part at the axial front of impeller configuration heater support.In this case, the wind produced by impeller does not carry out rectification and strikes heater support.Therefore, in order to reduce the interference sound between heater support and wind, configure blade with the position relationship described in above-mentioned embodiment and variation and plate-like portion becomes particularly important.
Further, the impeller of above-mentioned embodiment and variation is that each blade is along with the so-called advancing blades bending towards radial outside towards direction of rotation front.But impeller of the present invention may also be each blade along with the so-called retreating blade bending towards radial outside towards direction of rotation rear.When for retreating blade, if using the ora terminalis on front side of the direction of rotation in circumference two ora terminalis of each blade as the first ora terminalis, and using the ora terminalis on rear side of direction of rotation as the second ora terminalis, then the second ora terminalis is also positioned at than the position of the first ora terminalis by axial front.
Further, in above-mentioned embodiment and variation, impeller rotates centered by axis of blowing, and multiple plate-like portions of heater support are radially expanded centered by axis of blowing.But the rotation of impeller need not be completely the same with the central axis of heater support.That is, if the central axis of heater support is defined as air-supply axis, then the rotation of impeller also can extend with air-supply axis in the position leaving air-supply axis substantially in parallel.
Further, the shape forming the detail section of each parts of hair-dryer also can be different from the shape shown in each figure of the application.Further, each key element occurred in above-mentioned embodiment and variation suitably can be combined in the scope do not conflicted.
Industrial utilizability
The present invention can be used in such as hair-dryer.
Claims (10)
1. a hair-dryer, the air-supply axis that this hair-dryer extends along front and back discharges hot blast toward the front,
Described hair-dryer has:
Cylindrical portion, it extends vertically around described air-supply axis;
Impeller, it is axial-flow type, and is configured in described cylindrical portion;
Motor, it makes described impeller rotate by described air-supply axis or centered by the rotation extended substantially in parallel with described air-supply axis;
Heater support, it is configured in impeller position on the front described in the ratio in described cylindrical portion; And
Heater, it is supported by described heater support in described cylindrical portion,
Described impeller has the multiple blades arranged in the circumferential,
Described heater support have with multiple plate-like portions of extending from described air-supply axis towards radial outside in the cross section of described air-supply axis vertical take-off,
Two ora terminalis of the circumference of described blade comprise the first ora terminalis and than second ora terminalis of described first ora terminalis by axis direction front of blowing,
The feature of described hair-dryer is,
Regardless of the position of rotation of described impeller, the overlapping part between the circumferential position of the radial outer end of described second ora terminalis of described blade and the circumferential position of described plate-like portion is all sentence down.
2. hair-dryer according to claim 1, is characterized in that,
Regardless of the position of rotation of described impeller, the central authorities of the second ora terminalis described in the ratio of described blade lean on the overlapping part between the circumferential position of the part of radial outside and the circumferential position of described plate-like portion to be all sentence down.
3. hair-dryer according to claim 1 and 2,
Multiple described blade and multiple described plate-like portion configure respectively in the circumferential at equal intervals,
The feature of described hair-dryer is,
The number of the described plate-like portion that the number of the described blade that described impeller has and described heater support have is relatively prime.
4. hair-dryer according to claim 3, if the number of described plate-like portion that described heater support has is Na, the number of the described blade that described impeller has is Nb,
The feature of described hair-dryer is,
Na and Nb is combined as, Na=4, Nb=5; Na=4, Nb=7; Na=6, Nb=5; Or Na=6, Nb=7.
5. hair-dryer according to claim 1 and 2, is characterized in that,
Than described impeller on the front, than described heater support rearward and than described motor by the position of radial outside, also there are the multiple stator blades arranged in the circumferential.
6. hair-dryer according to claim 5, is characterized in that,
Regardless of the position of rotation of described impeller, the overlapping part between the circumferential position of the radial outer end of described second ora terminalis of described blade and the circumferential position of described stator blade is all sentence down.
7. the hair-dryer according to claim 5 or 6,
Multiple described blade and multiple described stator blade configure respectively in the circumferential at equal intervals,
The feature of described hair-dryer is,
The number of the described blade that described impeller has and the number of described stator blade relatively prime.
8. the hair-dryer according to any one in claim 5 to 7, is characterized in that,
The number of described stator blade is the integral multiple of the number of the described plate-like portion that described heater support has.
9. hair-dryer according to claim 8, is characterized in that,
The ora terminalis at air-supply axis direction rear of all plate-like portions that described heater support has and the ora terminalis in the air-supply axis direction front of described stator blade at least local are overlapping.
10. hair-dryer according to claim 1 and 2, is characterized in that,
Multiple described blade configures with unequal interval in the circumferential.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-000176 | 2014-01-06 | ||
| JP2014000176A JP2015128465A (en) | 2014-01-06 | 2014-01-06 | dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104757769A true CN104757769A (en) | 2015-07-08 |
Family
ID=53494872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510002596.3A Pending CN104757769A (en) | 2014-01-06 | 2015-01-05 | Dryer |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20150192325A1 (en) |
| JP (1) | JP2015128465A (en) |
| CN (1) | CN104757769A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105795673A (en) * | 2016-03-16 | 2016-07-27 | 浙江工贸职业技术学院 | Hair drier with air volume adjusting function |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2516249B (en) * | 2013-07-16 | 2017-03-01 | Dyson Technology Ltd | Heater for a hand held appliance |
| CN204397850U (en) * | 2015-01-14 | 2015-06-17 | 浙江普莱得电器有限公司 | A kind of convenient multi-purpose tool switched |
| JP7545797B2 (en) * | 2019-07-26 | 2024-09-05 | シャープ株式会社 | Hair dryer |
| GB2595201B (en) * | 2020-02-18 | 2022-07-06 | Imperial Thermal Engineering Ltd | Electric roofing torch |
| CN218791006U (en) | 2021-11-12 | 2023-04-07 | 尚科宁家运营有限公司 | Hair care implement |
| CN115977974B (en) * | 2022-09-06 | 2023-10-13 | 广东罗曼智能科技股份有限公司 | Electric hair drier fan motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4678410A (en) * | 1984-08-03 | 1987-07-07 | Braun Aktiengesellschaft | Hair dryer with axial blower |
| CN1253614A (en) * | 1997-04-25 | 2000-05-17 | 声学设计股份有限公司 | Ducted flow hair dryer |
| CN1650106A (en) * | 2002-08-23 | 2005-08-03 | 罗伯特-博希股份公司 | Radial fan wheel for transporting cooling air for an electric machine |
| CN102695536A (en) * | 2009-08-11 | 2012-09-26 | 雷斯梅德电动科技有限公司 | Single stage, axial symmetric blower and portable ventilator |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4122329A (en) * | 1976-06-21 | 1978-10-24 | Palmor International Corporation | Electrical air heating appliance |
| US4198558A (en) * | 1977-07-11 | 1980-04-15 | Sunbeam Corporation | Hair dryer |
| DE2849266C2 (en) * | 1978-11-14 | 1982-02-04 | Fritz Eichenauer GmbH & Co KG, 6744 Kandel | Electric radiator for gaseous media |
| DE3268502D1 (en) * | 1981-06-15 | 1986-02-27 | Rieter Ag Maschf | Process for heating a roller, and heated roller |
| GB8334366D0 (en) * | 1983-12-23 | 1984-02-01 | Black & Decker Inc | Hot air gun |
| JPS60193407A (en) * | 1984-03-15 | 1985-10-01 | 松下電工株式会社 | Hair dryer |
| US4647757A (en) * | 1985-04-30 | 1987-03-03 | Clairol Incorporated | Hair dryer heater section providing uniform outlet air temperature distribution |
| US4683369A (en) * | 1986-02-05 | 1987-07-28 | John Zink Company | Hand held electric hair dryer |
| US4794225A (en) * | 1987-10-09 | 1988-12-27 | Maese Hector L | Tube axial handheld blow dryer for hair |
| BE1003904A6 (en) * | 1990-03-02 | 1992-07-14 | Faco Sa | Travel hair dryer. |
| US5555637A (en) * | 1994-10-14 | 1996-09-17 | Production Engineered Designs, Inc. | Drying apparatus |
| US5755557A (en) * | 1995-08-03 | 1998-05-26 | Valeo Thermique Moteur | Axial flow fan |
| US6393208B1 (en) * | 2000-08-14 | 2002-05-21 | Daniel M. Nosenchuck | Compressor with integrated impeller and motor |
| US6354016B1 (en) * | 2001-02-12 | 2002-03-12 | Helen Of Troy, L.P. | Dual in-line styling hair dryer |
| US6732450B1 (en) * | 2003-07-11 | 2004-05-11 | Shu-Lien Chen | Electrothermal rack of hair dryer |
| BR0303784A (en) * | 2003-09-04 | 2004-12-14 | Daihatsu Ind E Com De Moveis E | Enhanced Hair Dryer |
| JP2006068187A (en) * | 2004-09-01 | 2006-03-16 | Kyushu Hitachi Maxell Ltd | Hair dryer |
| US7300244B2 (en) * | 2005-09-30 | 2007-11-27 | Intel Corporation | Cooling fan noise reduction apparatus, systems, and methods |
| JP4674769B2 (en) * | 2006-09-26 | 2011-04-20 | 九州日立マクセル株式会社 | Blower |
| JP2008175142A (en) * | 2007-01-18 | 2008-07-31 | Nippon Densan Corp | Fan device |
| JP2010185443A (en) * | 2009-02-13 | 2010-08-26 | Nippon Densan Corp | Serial axial flow fan |
| JP5612941B2 (en) * | 2010-07-16 | 2014-10-22 | 日立マクセル株式会社 | Hair dryer |
| US10865808B2 (en) * | 2014-05-14 | 2020-12-15 | Valeo Equipements Electriques Moteur | Fan for rotary electrical machine |
-
2014
- 2014-01-06 JP JP2014000176A patent/JP2015128465A/en active Pending
- 2014-12-01 US US14/556,307 patent/US20150192325A1/en not_active Abandoned
-
2015
- 2015-01-05 CN CN201510002596.3A patent/CN104757769A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4678410A (en) * | 1984-08-03 | 1987-07-07 | Braun Aktiengesellschaft | Hair dryer with axial blower |
| CN1253614A (en) * | 1997-04-25 | 2000-05-17 | 声学设计股份有限公司 | Ducted flow hair dryer |
| CN1650106A (en) * | 2002-08-23 | 2005-08-03 | 罗伯特-博希股份公司 | Radial fan wheel for transporting cooling air for an electric machine |
| CN102695536A (en) * | 2009-08-11 | 2012-09-26 | 雷斯梅德电动科技有限公司 | Single stage, axial symmetric blower and portable ventilator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105795673A (en) * | 2016-03-16 | 2016-07-27 | 浙江工贸职业技术学院 | Hair drier with air volume adjusting function |
Also Published As
| Publication number | Publication date |
|---|---|
| US20150192325A1 (en) | 2015-07-09 |
| JP2015128465A (en) | 2015-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104757769A (en) | Dryer | |
| CN104757768B (en) | Hair-dryer | |
| US6011903A (en) | Reduced-noise ducted flow hair dryer with multiple impellers and ambient air inlets | |
| CN205446107U (en) | Hair drier | |
| JP2018509554A5 (en) | ||
| JP2007100700A (en) | Method of providing uneven stator vane spacing in compressor | |
| JP6499636B2 (en) | Vane arrangement with alternating vanes with different trailing edge profiles | |
| BR102016025661A2 (en) | turbine engine and control surface | |
| RU2014147443A (en) | COOLING AXIAL FAN WITH CENTRAL STRESSING STATOR BLADES | |
| CN104696278A (en) | Impeller and air blower | |
| EP3176442A1 (en) | Axial flow device and jet engine | |
| JP2012107618A5 (en) | ||
| JP2012107618A (en) | Flow path for steam turbine outer casing and flow barrier apparatus | |
| KR20170093728A (en) | System and method for turbine nozzle cooling | |
| CN105065294A (en) | High-temperature warm air machine achieving heat generation through two impellers | |
| JP2015132263A (en) | Impeller for electric fan | |
| JP6110035B2 (en) | Rotor of thermal turbomachine | |
| US9605540B2 (en) | Alternating nozzles for radial inflow turbine | |
| JP6688011B2 (en) | Axial fan for cooling fan module | |
| US20170149308A1 (en) | Alternator with series fans | |
| JP6240763B2 (en) | Rotor for thermal turbomachine | |
| US9494044B1 (en) | Turbo-electric compressor/generator using Halbach arrays | |
| JP2017020409A (en) | Centrifugal fan and its manufacturing method | |
| CN205410160U (en) | Hair drier | |
| KR101867750B1 (en) | Vane unit and steam turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150708 |
|
| WD01 | Invention patent application deemed withdrawn after publication |