CN110528433B - Hair drier - Google Patents
Hair drier Download PDFInfo
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- CN110528433B CN110528433B CN201811449820.3A CN201811449820A CN110528433B CN 110528433 B CN110528433 B CN 110528433B CN 201811449820 A CN201811449820 A CN 201811449820A CN 110528433 B CN110528433 B CN 110528433B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H1/0809—Loosening or dislodging by blowing ; Drying by means of gas streams
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Abstract
The invention discloses a hair drier, comprising: a fan; motor, driveThe fan rotates around the central axis; a housing for accommodating the fan and the motor; the fan has the capacity K of outputting wind energy, and the weight G of the blower and the wind speed V output by the blower respectively form a functional relation G = f with the capacity K of outputting the wind energy by the fan1(K)，V=f2(K) In that respect The invention can provide the hair drier which is smaller and lighter in structure and can output higher wind speed and larger wind volume.
Description
Technical Field
The invention relates to an electric tool, in particular to a hair drier.
Background
The blower is a common garden tool and can help a user to clean the broken branches and fallen leaves in the garden. Existing blowers may be classified into a centrifugal blower and an axial blower according to the kind of the fan. The output wind speed and the air volume are used as important parameters of the hair dryer, the influence on the working performance of the hair dryer is large, and the output wind speed or the air volume of the hair dryer on the market is low at present. In addition, the existing hair dryer has large volume and weight, and is easy to cause fatigue when in use.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the hair drier which has larger output wind speed and wind quantity and is smaller and lighter in structure.
In order to achieve the above object, the present invention adopts the following technical solutions:
a hair dryer, comprising: a fan; the motor drives the fan to rotate around the central axis; a housing for accommodating the fan and the motor; the fan has the capacity K of outputting wind energy, and the weight G of the blower and the wind speed V output by the blower respectively form a functional relation G = f with the capacity K of outputting the wind energy by the fan1(K)，V=f2(K) (ii) a The capacity K of the fan for outputting the air energy meets the relation K = (gamma L) n/d, wherein: gamma is the maximum mounting angle of the fan blade, the unit is degree, and gamma is more than or equal to 67 degrees; l is the maximum chord length of the fan blade and is measured in meters, and L is more than or equal to 0.019 meters; n is the rotating speed of the fan, the unit is rotation/minute, and n is not less than 31000 rotation/minute; d is the diameter of the fan blade tip, the unit is millimeter, and d is less than or equal to 82 millimeters.
Further, the housing includes: an air duct portion formed with an air duct extending along the central axis and through which an air flow circulates; an air inlet for air to flow in and an air outlet for air to flow out are respectively formed at two ends of the air channel part; the fan is accommodated in the air duct portion.
Further, when K is not less than 480, the wind speed of the blower is not less than 150MPH, and the weight of the blower is not more than 2.0 kg.
Further, the fan is an axial flow fan.
Further, the air channel portion includes: a first bypass portion for accommodating the fan, the first bypass portion having an inner diameter of 84 mm or less; the wind channel portion still includes: a motor housing for receiving a motor, the motor being closer to the air outlet than the fan; the first channel part and the motor shell form a fixed connection or an integrated structure.
Further, the motor is a high-rotation-speed inner rotor motor, and the rotation speed of the motor is not less than 31000 rpm.
Further, the hair dryer still includes: the flow guide part is used for guiding the flow direction of the airflow and is accommodated in the shell and extends along a first straight line which is coincident with or parallel to the central axis.
Further, the flow guide portion includes: the rear end of the flow guide part is close to the air outlet; the front end of the flow guide part is close to the air inlet; the rear end of the flow guide part and the front end of the flow guide part are positioned at two ends of the flow guide part along a first straight line; the sectional area of any section perpendicular to the central axis between the rear end of the flow guide part and the air outlet is approximately equal to the airflow flow area of the section. The flow guide part is a conical flow guide cone.
Further, the inner diameter of the air outlet is less than or equal to 69 millimeters.
A hair dryer, comprising: the fan comprises a shell, a handle, a fan, a motor and an air channel part, wherein the motor drives the fan to rotate around a central axis; a housing for housing the fan and the motor, the motor being closer to the air outlet than the fan; the casing includes wind channel portion, and wind channel portion is formed with the wind channel of the air feed stream circulation that extends along the central axis, and the both ends of wind channel portion are formed with the air intake that the air feed stream flows in and the air outlet that the air feed stream flows out respectively, and the fan holds in wind channel portion, its characterized in that: the expected wind speed and weight of the blower can be obtained by designing the capacity K of the fan for outputting wind energy, and the capacity of the fan for outputting wind energy meets a functional relation K = (gamma L) n/d, wherein gamma is the maximum installation angle of the fan blades and has the unit of degree, and gamma is more than or equal to 67 degrees; l is the maximum chord length of the fan blade and is measured in meters, and L is more than or equal to 0.019 meters; n is the rotating speed of the fan, the unit is rotation/minute, and n is not less than 31000 rotation/minute; d is the diameter of the tip of the fan, the unit is millimeter, and d is less than or equal to 82 millimeters; the fan has the capacity K of outputting wind energy, the weight G of the blower and the wind speed V output by the blower form a functional relation with the capacity K of outputting the wind energy by the fan, wherein G = f1(K) and V = f2(K), when K is larger than or equal to 480, the wind speed of the blower is larger than or equal to 150MPH, and the weight of the blower is smaller than or equal to 2.0 kg.
The invention has the advantages that: the hair drier has the advantages that the volume of the hair drier is reduced, the weight of the hair drier is reduced, the overall use performance of the hair drier is improved, and the fatigue of a user when the hair drier is used is reduced.
Drawings
Figure 1 shows a schematic view of a blower according to a first embodiment of the invention;
figure 2 shows a cross-sectional view of part of the construction of the blower of figure 1;
figure 3 shows an exploded view of part of the construction of the blower of figure 1;
FIG. 4 is a cross-sectional view of the air duct portion of the blower of FIG. 1;
FIG. 5 shows a bottom view of the fan of the blower of FIG. 1;
FIG. 6 shows a front view of the fan of the blower of FIG. 1;
FIG. 7 is a graph of output wind speed V, total machine weight G, and capacity K of fan 12 per unit flow area of the blower of FIG. 1 as a function of output wind speed;
figure 8 shows a sectional view of a hair dryer in accordance with a second embodiment of the present invention;
figure 9 shows a sectional view of a hair dryer in a third embodiment of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and the embodiments.
The present invention provides a hair dryer 100, wherein the hair dryer 100 can be a hand-held hair dryer or a backpack hair dryer according to the operation mode of a user.
As shown in fig. 1 to 4, the blower 100 includes a fan 12 rotating about a central axis 101, a motor 13 driving the fan to rotate, and a casing for accommodating the fan 12 and the motor 13. The casing comprises an air duct portion 11 for air flow circulation, and a handle for operation of a user is further formed on the casing and connected to the air duct portion 11 or integrally formed with the air duct portion 11. In the present embodiment, the air duct portion 11 extends along the central axis 101, and an air inlet a through which air flows in and an air outlet B through which air flows out are formed at both ends of the air duct portion 11; the fan 12 and the motor 13 are accommodated inside the air channel portion 11, and the motor 13 is closer to the air outlet B than the fan 12; fan 12 includes air inlet end C and air outlet end D that distribute in fan 12's both sides along central axis 101, and wherein, air inlet end C is more close to air intake B, and air outlet end D is more close to air outlet a. Specifically, fan 12 is an axial fan, and fan 12 includes an impeller and blades mounted to the impeller.
In this embodiment, the air duct portion 11 is formed by connecting four independent structures, which are sequentially from bottom to top in fig. 3: an air inlet portion 111 near the air inlet a at one end of the air duct portion 11 for air to enter, a first duct portion 112 for accommodating the fan 12 and the motor 13, a second duct portion 113 for accommodating the air guiding portion 14, and a blowing pipe 114 near the air outlet B at one end of the air duct portion 11 for air to flow out. Wherein, first letter way portion 112 constitutes interference fit with air inlet portion 111 and second letter way portion 113 respectively, and second letter way portion 113 constitutes interference fit with first letter way portion 112 and blowing pipe 114 respectively, and second letter way portion 113 becomes certain tapering extension along central axis 101. It is understood that the air inlet portion 111, the first duct portion 112, the second duct portion 113 and the blowing pipe 114 may be integrally formed or several of them may be integrally formed or fixedly connected, and the forming manner of the air duct portion 11 is not limited herein.
The first bypass portion 112 includes a first housing 1121 connecting the air inlet portion 111 and the second bypass portion 113, a motor housing 1122 for accommodating the motor 13 is disposed inside the first bypass portion 112, and an air guiding rib 1123 extending along the central axis 101 and used for guiding air is further formed outside the motor housing 1122. It is understood that the specific number of the wind guide ribs 1123 is not limited to 3. The air guiding rib 1123 connects the motor housing 1122 and the first housing 1121 to form an integrated structure, so that the air flow from the fan 12 can flow into the second duct portion 113 after being guided by the air guiding rib 1123. Of course, it is understood that the motor housing 1122 may be separate from the first housing 1121 or connected to the first housing 1121. In the present embodiment, the motor housing 1122 is a part of the first duct portion 112, and may be considered to be integrally formed with the first duct portion 112.
Blower 100 further includes a flow guide 14 for guiding the flow of air, flow guide 14 extending along a first line that is coincident with or parallel to central axis 101, in this embodiment, coincident with central axis 101. In the present embodiment, the diversion portion 14 is a diversion cone with a conical shape, and the cone portion is closer to the air outlet B. The flow guiding part 14 forms an interference fit with a bearing cover 16 close to a bearing of the motor, and is closer to the air outlet B relative to the motor 13 and the fan 12. It will be appreciated that the configuration of the flow guide 14 is not limited to a cone. The flow guide part 14 comprises a flow guide part rear end E close to the air outlet B and a flow guide part front end close to the air inlet A; the rear end E and the front end of the flow guide portion are located at both ends of the flow guide portion 14 along a first straight line.
In this embodiment, the motor is a high speed inner rotor motor, and the speed of the motor is 31000 rpm. On the basis, the tip diameter of the blade of the fan 12 and the size of each position of the air duct portion 11 are limited to obtain a hair dryer with better performance, specifically, the tip diameter of the fan 12 is equal to or less than 82mm, the inner diameter a1 of 1123 of the first duct portion 112 accommodating the fan 12 is equal to or less than 84 mm, the outer diameter a2 of the motor housing 1121 is equal to or less than 44 mm, the inner diameter A3 of one end of the blowing pipe 114 close to the second duct portion 113 is equal to or less than 70 mm, the inner diameter a4 of one end of the blowing pipe 114 far away from the second duct portion 113 is equal to or less than 69 mm, and the ratio of the air flow areas of any two cross sections perpendicular to the central axis 101 between the air outlet end D of the fan 12 and the air outlet B is equal to or more than 0.95 and equal to or less than 1.1 by designing the conicity of the flow guide portion 114, the second duct portion 113 and the blowing pipe 114, so that the pressure loss of the air flow from the air outlet end D of the fan 12 to the air outlet B % and ensures that the blower 100 has a higher energy utilization rate. Further, the ratio of the airflow flow areas of any two cross sections perpendicular to the central axis 101 between the air outlet end D of the fan 12 and the air outlet B is greater than or equal to 1.02 and less than or equal to 1.1, so that the pressure loss of the airflow from the air outlet end D of the fan 12 to the air outlet B of the air duct portion 11 is less than or equal to 8%. Of course, the specific value of the structural dimension may be adjusted within a corresponding range under the condition that the ratio of the airflow flow areas of any two cross sections perpendicular to the central axis 101 between the air outlet end D and the air outlet B is greater than or equal to 0.95 and less than or equal to 1.1. It will be appreciated that the radial dimensions of the air inlet portion 111, the first bypass portion 112, the second bypass portion 113 and the blower pipe 114 are progressively varied in the axial direction.
Furthermore, the ratio of the airflow flow areas of any two cross sections perpendicular to the central axis 101 between the air outlet end D of the fan 12 and the front end of the flow guide part is greater than or equal to 0.95 and less than or equal to 1.05; the ratio of the airflow flow areas of any two cross sections perpendicular to the central axis 101 between the rear end E of the flow guide part and the air outlet B is more than or equal to 0.95 and less than or equal to 1.05. This is a further limitation to the structural size of the air duct portion 11, and in fact, in this embodiment, the cross-sectional area of any cross section perpendicular to the central axis 101 from the rear end E of the air guiding portion to the air outlet B is approximately equal to the airflow flow area of the cross section, that is, there is substantially no structure for blocking the airflow inside the air duct portion 11 from the rear end E of the air guiding portion to the air outlet B, such a structure is configured to make the pressure loss of the airflow from the rear end E of the air guiding portion to the air outlet B small, and further improve the working efficiency of the hair dryer. In the present embodiment, the air duct portion 11 between the rear end E of the diversion portion and the air outlet B is referred to as the air blowing pipe 114.
In the embodiment, the final output wind speed V of the blower 100 is more than or equal to 150 m/h, the wind volume is more than or equal to 510 cubic feet/min, and the total weight G of the blower is less than or equal to 2.0 kg. In fact, we control the output wind speed V of the blower 100 and the overall weight G by adjusting the structural and performance parameters of the motor 13 and the fan 12.
Specifically, it has been found through extensive modeling experiments and analysis of blower 100 that blower 100 may be made to have a lighter overall weight G and a higher output wind speed V by adjusting the magnitude of variable K, which represents the ability of fan 12 to output wind energy per unit flow area, and has the following expression:
K=γ*L*n/d
wherein gamma is the maximum installation angle of the fan blades and has the unit of Degree (DEG); l is the maximum chord length of the fan blade and has the unit of meter (m); n is the fan speed in revolutions per minute (rpm); d is the tip diameter of fan 12 in millimeters (mm). Wherein, Gamma is more than or equal to 67 degrees and less than 90 degrees, L is more than or equal to 0.019m, n is more than or equal to 31000rpm, d is less than or equal to 82mm, and when the conditions are met, the capacity K of the fan 12 for outputting wind energy in unit flow area is more than or equal to 480.
Where K is the capacity of fan 12 to output wind energy per unit flow area, a function K = f (γ, L, n, d) of K with respect to the above four parameters is experimentally derived. That is, the capacity K of the fan 12 to deliver wind energy per unit flow area is related to the blade maximum stagger angle γ, the blade maximum chord length L, the fan speed n, and the blade tip diameter d. As shown in fig. 5 and 6, the chord length of the fan blade is the length of the intersection line of the fan blade and the imaginary solid with the diameter between the diameter of the hub of the fan and the diameter of the blade tip, where the imaginary solid has the same structure as the hub of the fan and only has a different size from the hub of the fan, the diameter of the imaginary solid is different, the length of the intersection line obtained by the coaxial intersection of the imaginary solid and the fan blade is also different, the maximum chord length L of the fan blade is the maximum value of the lengths of the multiple intersection lines, and in this embodiment, the maximum chord length L of the fan blade is the length of the intersection line of; the tip diameter d is the diameter of the position where the highest point of the blades of the fan 12 is located. The root of the fan blade is connected with the surface of the hub to form a connecting line, the mounting angle of the fan blade is an acute angle between a tangent line of each point of the connecting line in a plane perpendicular to the radius of the hub and a tangent line of the point on the surface of the hub perpendicular to the central axis 101, and the maximum mounting angle gamma of the fan blade is the maximum value of the mounting angle of the fan blade; the fan speed n is the rotational speed of the fan 12 driven by the motor 13, in this embodiment, the motor 13 and the fan 12 are coaxially installed, the fan speed n is substantially equal to the rotational speed of the motor 13, specifically, the rotational speeds of the motor 13 and the fan 12 are both 31000rpm or more. It will be appreciated that in other embodiments of the invention, the fan speed n and the motor 13 speed may not be equal.
Fig. 7 is a graph illustrating the capacity K of fan 12 to deliver wind energy per unit flow area, the output wind speed V of blower 100 at outlet B, and the overall weight G of blower 100. In practice, the overall weight G is a function of the blade tip diameter d, and the output wind speed V is a function of the maximum blade installation angle γ, the maximum blade chord length L, and the fan speed n. As shown in fig. 7, when the capacity K of fan 12 to output wind energy per unit flow area is equal to 480, the output wind speed V of blower 100 at outlet B reaches 150mph (mill per) and the total weight of blower 100 is about 2.00 kg; when the capacity K of the fan 12 for outputting wind energy in a unit flow area is greater than 480, the output wind speed V of the blower 100 at the air outlet B is greater than 150MPH, and the total weight G of the blower 100 is less than 2.00 kg; further, when the capacity K of the fan 12 to output wind energy in a unit flow area is greater than 0 and less than 480, the output wind speed V of the blower 100 at the air outlet B is greater than 0 and less than 150MPH, and the total weight G of the blower 100 is greater than 2.00 kg; when the capacity K of the fan 12 for outputting wind energy in a unit flow area is larger than 510, the output wind speed V of the blower 100 at the air outlet B is larger than 170MPH, and the total weight G of the blower 100 is smaller than 1.85 kg. Therefore, by controlling the wind energy output capacity K of the fan 12 per unit flow area, the corresponding overall weight G and wind output speed V can be obtained. Of course, it is fundamentally possible to adjust the capability K of the fan 12 to output wind energy per unit flow area by providing improvements to the specific structure of the fan 12 and the performance of the motor 13.
In summary, by adjusting the radial dimensions of different portions of the air duct 11 of the hair dryer 100 and the ability K of controlling the output wind energy of the fan 12 in a unit flow area, the hair dryer 100 has more outstanding usability and better structural design, and specifically has less energy loss, higher output wind speed V and a smaller and lighter overall structure.
In the second embodiment of the present invention, as shown in fig. 8, the ratio of any two flow cross-sectional areas between the flow cross-section S1 of the air duct near the motor 22 at the rear end of the fan 21 and the flow cross-section S2 of the air outlet 231 of the air blowing pipe 23 is between 0.95 and 1.1, or alternatively, the ratio of any two flow cross-sectional areas between the inner wall of the duct 24 and the middle of the motor housing 241 (not shown), the flow cross-section S1 of the annular flow cross-section at the middle of the motor housing 241 and the flow cross-section S2 of the air outlet 231 of the air blowing pipe 23 are between 0.95 and 1.01, so that the first pressure P1 of the air flow in the air duct near the motor, the second pressure P2 of the air flow passing through the air blowing pipe 23 in the duct of the air outlet 231 of the air blowing pipe is greater than or equal to 90% P1, and the flow velocity of the air flow does not change suddenly, the blowing efficiency is improved.
In the third embodiment of the present invention, the ratio of any two flow cross-sectional areas between the flow cross-section S2 at the rear of the diversion cone 36 or the diversion cone 36 and the flow cross-section S3 at the air outlet 331 of the blower pipe 33 is between 0.95 and 1.05, and the first pressure P1 of the air flow in the air duct near the motor 32 can also be greater than or equal to 90% P1 of the second pressure P2 formed in the duct of the air outlet 331 by flowing through the blower pipe 33, so that the flow velocity of the air flow does not change suddenly, the flow characteristics of the air flow can be effectively improved, and the blowing efficiency can be improved.
It should be noted that, only the differences between the hair dryers of the second and third embodiments and the hair dryer of the first embodiment are described above, and other applicable technical features of the first embodiment can be applied to the second and third embodiments, which are not described in detail herein.
It will be appreciated that the duct enclosures of the duct 34 and the blower 33 are progressively axially variable in the flow cross-section S1 of the air path adjacent the motor 32 at the rear end of the fan 31, the flow cross-section S2 at the rear of the motor 32, and the connecting duct interconnecting the flow cross-section S3 of the outlet 331 portion of the blower 33.
Specifically, as shown in fig. 9, the flow cross section of the air duct portion near the motor 32 is S1, the flow cross section of the air duct portion at the rear of the deflector cone 36 is S2, the flow cross section of the air outlet 331 portion of the blower pipe 33 is S3, or the flow cross section of the air duct portion near the motor 32 at any position between the air duct portion at the rear of the motor 32 and the duct 34 of the air outlet portion is Sn, and the ratio of any two flow cross sections is 0.95 to 1.1 for the flow cross section S1, the flow cross section S2, the flow cross section S3, and the flow cross section Sn. That is to say, through the optimization to the wind channel flow cross section between near the wind channel of motor and the tuber pipe air outlet, can make the loss of pressure of air current obtain effective control, can improve the air-out efficiency of complete machine.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.
Claims (10)
1. A hair dryer, comprising:
a fan;
the motor drives the fan to rotate around the central axis;
a housing for accommodating the fan and the motor;
the fan has the capacity K of outputting wind energy, and the weight G of the blower and the wind speed V output by the blower respectively form a functional relation G = f with the capacity K of outputting the wind energy by the fan1(K)，V=f2(K) (ii) a The capacity K of the fan for outputting the air energy meets the relation K = (gamma L) n/d, wherein:
gamma is the maximum mounting angle of the fan blade, the unit is degree, and gamma is more than or equal to 67 degrees;
l is the maximum chord length of the fan blade and is measured in meters, and L is more than or equal to 0.019 meters;
n is the rotating speed of the fan, the unit is rotation/minute, and n is not less than 31000 rotation/minute;
d is the diameter of the fan blade tip, the unit is millimeter, and d is less than or equal to 82 millimeters.
2. The hair dryer of claim 1, wherein:
the housing includes:
an air duct portion formed with an air duct extending along the central axis through which an air flow circulates; an air inlet for air to flow in and an air outlet for air to flow out are formed at two ends of the air channel part respectively; the fan is accommodated in the air duct portion.
3. The hair dryer of claim 1, wherein:
when K is greater than or equal to 480, the wind speed of the blower is greater than or equal to 150MPH, and the weight of the blower is less than or equal to 2.0 kg.
4. The hair dryer of claim 1, wherein:
the fan is an axial fan.
5. The hair dryer of claim 2, wherein:
the air duct portion includes:
a first bypass portion for receiving the fan, the first bypass portion having an inner diameter of 84 mm or less; the air duct portion further includes:
a motor housing for receiving the motor, the motor being closer to the air outlet than the fan; the first channel part and the motor shell form a fixed connection or an integrated structure.
6. The hair dryer of claim 1, wherein:
the motor is a high-rotating-speed inner rotor motor, and the rotating speed of the motor is not less than 31000 rpm.
7. The hair dryer of claim 2, wherein:
the hair dryer further comprises:
the flow guide part is used for guiding the flow direction of the airflow and is accommodated in the shell and extends along a first straight line which is coincident with or parallel to the central axis.
8. The hair dryer of claim 7, wherein:
the flow guide part includes:
the rear end of the flow guide part is close to the air outlet;
the front end of the flow guide part is close to the air inlet;
the rear end of the flow guide part and the front end of the flow guide part are positioned at two ends of the flow guide part along the first straight line; the cross section of the section between the rear end of the flow guide part and the air outlet, which is perpendicular to the central axis at will, is approximately equal to the airflow circulation area of the section, and the flow guide part is a conical flow guide cone.
9. The hair dryer of claim 2, wherein:
the inner diameter of the air outlet is less than or equal to 69 millimeters.
10. A hair dryer, comprising: the fan comprises a shell, a handle, a fan, a motor and an air channel part, wherein the motor drives the fan to rotate around a central axis; the casing is used for accommodating the fan and the motor, an air inlet for air to flow in and an air outlet for air to flow out are formed at two ends of the air channel part respectively, and the motor is closer to the air outlet relative to the fan; the casing includes wind channel portion, wind channel portion is formed with the edge the wind channel of the air feed stream circulation that the central axis extends, the both ends of wind channel portion are formed with the air intake that the air feed stream flowed in respectively and the air outlet that the air feed stream flows out, the fan hold in the wind channel portion, its characterized in that: the expected wind speed and weight of the blower can be obtained by designing the capacity K of the fan for outputting wind energy, the capacity of the fan for outputting wind energy satisfies a functional relation K = (Gamma L) n/d, wherein,
gamma is the maximum mounting angle of the fan blade, the unit is degree, and gamma is more than or equal to 67 degrees;
l is the maximum chord length of the fan blade and is measured in meters, and L is more than or equal to 0.019 meters;
n is the rotating speed of the fan, the unit is rotation/minute, and n is not less than 31000 rotation/minute;
d is the diameter of the tip of the fan, the unit is millimeter, and d is less than or equal to 82 millimeters;
the fan has the capacity K of outputting wind energy, the weight G of the blower and the wind speed V output by the blower respectively form a functional relation with the capacity K of outputting the wind energy by the fan, G = f1(K) and V = f2(K), when K is larger than or equal to 480, the wind speed of the blower is larger than or equal to 150MPH, and the weight of the blower is smaller than or equal to 2.0 kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/082079 WO2019223438A1 (en) | 2018-05-25 | 2019-04-10 | Air blower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810515140 | 2018-05-25 | ||
| CN2018105151400 | 2018-05-25 |
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| CN110528433A CN110528433A (en) | 2019-12-03 |
| CN110528433B true CN110528433B (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811449820.3A Active CN110528433B (en) | 2018-05-25 | 2018-11-30 | Hair drier |
| CN201811450194.XA Pending CN110528434A (en) | 2018-05-25 | 2018-11-30 | Hair dryer |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811450194.XA Pending CN110528434A (en) | 2018-05-25 | 2018-11-30 | Hair dryer |
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| CN114319209A (en) * | 2020-09-29 | 2022-04-12 | 苏州宝时得电动工具有限公司 | Hair drier |
| CN113668440B (en) * | 2021-09-14 | 2023-03-31 | 格力博(江苏)股份有限公司 | Hair drier |
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| CN202883473U (en) * | 2012-07-05 | 2013-04-17 | 山西北方机械制造有限责任公司 | Axial fan used for solid rotor permanent magnetic motor |
| CN104074155A (en) * | 2013-03-29 | 2014-10-01 | 南京德朔实业有限公司 | Handheld blower |
| CN107165863A (en) * | 2017-07-12 | 2017-09-15 | 李小顺 | A kind of engineering axle stream cooling plastic fan |
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| CN106284149B (en) * | 2015-05-11 | 2018-05-11 | 南京德朔实业有限公司 | Hair-dryer |
| CN104564839B (en) * | 2013-10-11 | 2017-01-04 | 南京德朔实业有限公司 | A kind of hair-dryer and air duct thereof |
| CN107969139B (en) * | 2015-04-09 | 2020-03-13 | 加拿大嘉纳泰尔有限公司 | Portable blade blower |
| CN107558421B (en) * | 2016-06-30 | 2020-01-31 | 南京德朔实业有限公司 | Hair drier |
| US10405707B2 (en) * | 2016-11-07 | 2019-09-10 | Nanjing Chervon Industry Co., Ltd. | Blower |
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2018
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| JP2007063989A (en) * | 2005-08-29 | 2007-03-15 | Aisin Chem Co Ltd | Cooling fan |
| CN200996391Y (en) * | 2007-01-31 | 2007-12-26 | 广东美的电器股份有限公司 | Axial-flow wind wheel |
| CN100465458C (en) * | 2007-01-31 | 2009-03-04 | 广东美的电器股份有限公司 | Axial-flow windwheel |
| CN201339601Y (en) * | 2008-12-31 | 2009-11-04 | 邱荣泉 | Axial flow fan |
| CN202883473U (en) * | 2012-07-05 | 2013-04-17 | 山西北方机械制造有限责任公司 | Axial fan used for solid rotor permanent magnetic motor |
| CN104074155A (en) * | 2013-03-29 | 2014-10-01 | 南京德朔实业有限公司 | Handheld blower |
| CN107165863A (en) * | 2017-07-12 | 2017-09-15 | 李小顺 | A kind of engineering axle stream cooling plastic fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110528434A (en) | 2019-12-03 |
| CN110528433A (en) | 2019-12-03 |
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