WO2020093981A1 - 电吹风 - Google Patents
电吹风 Download PDFInfo
- Publication number
- WO2020093981A1 WO2020093981A1 PCT/CN2019/115432 CN2019115432W WO2020093981A1 WO 2020093981 A1 WO2020093981 A1 WO 2020093981A1 CN 2019115432 W CN2019115432 W CN 2019115432W WO 2020093981 A1 WO2020093981 A1 WO 2020093981A1
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- WIPO (PCT)
- Prior art keywords
- notch
- housing
- hair dryer
- airflow
- barrel
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- 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
Definitions
- the invention relates to the field of household appliances, in particular to an electric hair dryer.
- the hair dryer includes a casing and a duct
- the airflow drawn into the hair dryer through the fan unit includes an axial section extending between the casing and the duct, and the airflow is generally annular, which is beneficial to the interior of the casing
- the air flow along the guide of the housing and the side walls of the duct quickly blows out from the hair dryer. But in this way, after the hair dryer is energized, the air flow drawn into the hair dryer by the fan unit will be blown out quickly.
- the hair dryer with high air volume and high wind pressure can startle people and temporarily hold their breath under the action of the air flow; or, when the air outlet is directed at the hair (long-haired girls may blow up from the hair tip first), the scalp, the electricity After the hair dryer is turned on, the airflow of high wind pressure instantly blows to the hair and scalp, causing the hair and scalp to bear a large force instantly, causing discomfort. Open the low wind gear first, and then switch to the high wind gear, the operation is more troublesome. Moreover, if the air volume and pressure are small, the hair drying efficiency may be reduced.
- the high wind pressure can quickly disperse the wet hair during the blowing process, as the moisture gradually evaporates, the hair becomes lighter and lighter, and the hair flutters under the wind under a large angle, which is easy to be messy. There is one more adjustment step in the small gear, which is more troublesome.
- the hair dryer includes a fan unit, a heating unit, a casing, and a handle assembly.
- the handle assembly is connected to the casing.
- the fan unit is provided in the handle assembly or the casing.
- the heating unit is provided in the casing.
- the heating unit is provided in the handle assembly.
- the air inlet on the top or the air inlet provided on the casing sucks the airflow into the housing.
- the heating unit is used to heat the airflow. If the heat generated by the heating unit is not dissipated in time, it will cause the heating unit to become red, resulting in a safety accident.
- the technical problem to be solved by the present invention is to provide an electric hair dryer.
- optimizing the air duct structure it can provide an instant air volume and a small air pressure at the same gear when starting up, and the air volume and air pressure gradually increase with the extension of the startup time A large and stable electric hair dryer.
- By optimizing the air outlet it can provide an electric hair dryer that can adjust the wind pressure by manually changing the distance between the air outlet of the hair dryer and the surface of the hair in the same gear.
- the structure enables the heat in the hair dryer to be dissipated in time, is safe to use, and provides a good user experience.
- An electric hair dryer includes a housing, a handle assembly connected to the housing, a fan unit, a heating unit, an air inlet and an air outlet;
- the fan unit is used to suck airflow into the electric blower from the air inlet and blow out from the air outlet to form a main air channel, and the heating unit is used to heat the airflow;
- the fan unit includes a fan blade and a motor for driving the fan blade to rotate;
- the main air duct includes an axial section extending in the direction of the axis of the housing, and a notch barrel with a notch is provided in the casing, the notch barrel and the cylindrical wall inside the casing define the axial section .
- the advantage is that the air flow in the axial section is converged at the gap through the setting of the notch barrel, which increases the air storage volume of the axial section.
- the air flow is drawn into the axial section by the fan unit and part of the air flow Gradually converge at the gap or enter the inside of the gap tube through the gap, and the remaining airflow is blown out from the air outlet along the direction defined by the outer side wall and the cylindrical wall of the gap tube, so that the instantaneous air pressure and air volume at the instant of the blower start are relatively small;
- the airflow at the gap / or the internal space of the gap tube is filled, this part of the airflow will be blown out of the air outlet under the drive of the remaining airflow in the axial section, increasing the air pressure and air volume, and the storage at the gap
- the airflow can balance the air volume and wind pressure at the air outlet, so that the air volume and wind pressure blown from the air outlet are relatively constant.
- the gap extends along the axis direction of the gap cylinder, and the ratio of the length of the gap to the length of the gap cylinder is not less than 1/2.
- the advantage is that an appropriate wind storage area is formed to buffer the air volume and wind pressure at the instant the blower starts.
- the ratio of the two lengths is less than 1/2, the buffering effect on the air volume and pressure at the instant of the hair dryer is not obvious.
- connection between the handle assembly and the housing forms a communication port that connects the two, and the notch extends to the upstream side of the communication port.
- the advantage is that it can buffer the air volume and wind pressure at the instant of the start of the hair dryer, and will not lose more air volume and wind pressure.
- connection between the handle assembly and the housing forms a communication port that connects the two, and the notch extends to / over the downstream side of the communication port; or the notch extends between the upstream side and the downstream side of the communication port.
- the advantage is to increase the area of the wind storage area and buffer the air volume and wind pressure at the instant of the start of the hair dryer.
- the communication port is staggered from the gap.
- the advantage is that the airflow at the communication port enters the axial section, increasing the air volume and pressure.
- the notch is located above the axis of the housing.
- the advantage is that when using a hair dryer to blow hair, the position above the axis of the housing is relatively far away from the surface below the scalp surface, and the air outlet corresponds to the location of the internal gap where the air pressure and air volume are relatively small, so that the air pressure and air volume of the air outlet The larger position is facing the hair for a longer time, which is helpful for drying the hair quickly.
- the notch barrel is provided with a perforation for allowing the airflow of the main air duct to enter the notch barrel, and the projections of the perforation and the notch at least partially coincide;
- the notch barrel is provided with a perforation for allowing the airflow of the main air duct to enter the notch barrel, the perforation is located on the upstream side of the starting end of the notch, and the two are arranged oppositely.
- An electric hair dryer includes a casing, a handle assembly connected with the casing, a fan unit, a heating unit, an air inlet and an air outlet;
- the fan unit is used to suck airflow into the electric blower from the air inlet and blow out from the air outlet to form a main air channel, and the heating unit is used to heat the airflow;
- the fan unit includes a fan blade and a motor for driving the fan blade to rotate;
- the main air duct includes an axial section extending in the axial direction of the housing, the heating unit is disposed in the axial section, the heating unit includes a notch barrel, and the notch barrel has an axis along its axis A notch extending in the direction, the notch barrel and the cylindrical wall inside the housing define the axial section.
- the advantage is that through the setting of the notch tube, the airflow can be temporarily collected in the interior of the housing, so that the airflow and the heating unit have sufficient time for heat transfer, and then driven by other airflows from the air outlet, reducing the redness of the heating wire Probability, safer to use.
- the heating unit further includes a plurality of mica pieces installed on the notch tube, and a heating wire wound on the plurality of mica pieces.
- the plurality of mica pieces are provided on at least two sides of the notch, and the heating wire is at least Winding above the outer side wall of the notch tube.
- the advantage is to improve the installation reliability of the mica flakes and prevent the mica flakes from getting out of the installation position, which leads to an increase in wind resistance and loss of air volume.
- the heating wire to be wound at least above the outer side wall of the notch tube.
- the heating wire surrounds the entire circle; the advantage is to increase the heating power; or the heating wire is only wound above the notch tube, The gap is open. Reduce the weight of the heating unit.
- At least one of the plurality of mica pieces is provided corresponding to the notch, and the mica piece has a dangling end that extends toward the notch and extends axially along the notch barrel.
- the advantage is that the heating wire is supported to prevent the heating wire from being deformed at the notch.
- the notch barrel includes an axially extending first part, the notch is provided in the first part, the mica piece is snap-fitted with the first part, and the plurality of mica pieces are arranged at even intervals.
- the advantage is that the mounting bracket is supported to prevent the mounting bracket from being deformed, which in turn causes the heating unit to deform.
- the notch barrel further includes a second part extending outward in the circumferential direction of the first part at the rear end of the first part, and the rear end of the mica sheet abuts against the inner side of the second part.
- the advantage is to improve the reliability of the mica sheet fixing.
- the rear end of the mica sheet has a clamping groove, and the clamping groove abuts against the peripheral edge of the second part.
- the advantage is to improve the reliability of the mica sheet fixing.
- An electric hair dryer includes a housing, a handle assembly connected to the housing, a fan unit, a heating unit, an air inlet and an air outlet;
- the fan unit is used to suck airflow into the electric blower from the air inlet and blow out from the air outlet to form a main air channel, and the heating unit is used to heat the airflow;
- the fan unit includes a fan blade and a motor for driving the fan blade to rotate;
- the main air duct includes an axial section extending along the axial direction of the housing, a notch tube with a notch is provided in the housing, the notch extends along the axial direction of the housing, and the air outlet is located on the shaft A non-closed gap at the end of the section, the non-closed gap being defined by the notched barrel and the cylindrical wall inside the housing.
- the advantage is that the airflow blown from the non-closed gap can drive the airflow of the non-closed gap of the non-closed gap.
- the two airflows have a junction point. When the distance from the air outlet to the surface of the hair is greater than the distance from the junction to the air outlet, the two The mixed airflow can reduce the wind pressure. When blowing long hair, it is not easy to blow the hair at an excessively large flying angle.
- the applied force is relatively small, when the user only needs to dry the hair without styling, long-term blowing in one direction will not change the original direction of the hair root, making the hair after blowing easier to care for;
- the distance from the tuyere to the surface of the hair is less than the distance from the junction to the air outlet, the two airflows reach the surface of the hair respectively, and the wind pressure is large, which can blow away the wet hair, increase the contact area of the hot air and the hair, and quickly dry the hair.
- the air pressure can be adjusted by changing the distance between the air outlet and the surface of the hair, to achieve different blowing effects, without the need to adjust the gear button, which is more convenient.
- the open portion is located on one side of the centerline of the non-closed gap.
- the advantage is that the non-closed gap is set around its center line, and the center of the non-closed gap is on the inner side, so that the airflow from the main air duct blown from the air outlet and the airflow at the open part driven by the airflow form a complete circle When blowing hair, the distance between the air outlet and the hair, these two airflows will merge into one before reaching the hair, improving the blowing effect.
- the opening is located above the center line of the housing.
- the advantage is that, according to the user's habit of holding a hair dryer during the blowing process, the area below the center line of the casing is the part that always plays a major role in the entire blowing process.
- the air flow at the opening is mainly caused by the main air blowing from the air outlet
- the airflow is driven by the air duct, and the air volume and pressure are relatively small. If the user is used to blowing the air outlet of the hair dryer close to the hair, then the two airflows reach the surface of the hair before they merge into one, and the opening is located at the centerline of the shell
- the upper part of the is beneficial to make the greater wind pressure and more air flow blow to the hair, to achieve the purpose of drying the hair quickly.
- both ends of the opening are located on both sides of the centerline of the handle assembly.
- the advantage is that the opening part is set at a position away from the surface of the hair relatively more time during the blowing process, which is beneficial to make the greater wind pressure and more air flow blow toward the hair, so as to achieve the purpose of drying the hair quickly.
- the opening and the notch face the same direction.
- the axial section is defined by the notch barrel and the cylindrical wall inside the housing, and the non-closed gap is defined by the notch barrel and the cylindrical wall.
- the advantage is that a non-closed gap is defined by the cooperation of the gapped cylinder and the cylindrical wall, and the air flow in the axial section is blown out from the non-closed gap, and the flow of the air flow at the non-closed position of the non-closed gap can be driven.
- the two air flows have A junction, when the distance from the air outlet to the surface of the hair is greater than the distance from the junction to the air outlet, the two airflows can play a role in reducing the wind pressure after mixing; when the distance from the air outlet to the surface of the hair is less than the junction to the air outlet At a distance of two, the two airflows respectively reach the surface of the hair, and the wind pressure is large.
- the air pressure can be adjusted by changing the distance between the air outlet and the surface of the hair to achieve different blowing effects.
- the electric hair dryer further includes a closing portion that closes a part of the gap between the notch barrel and the cylindrical wall to form the non-closed gap.
- the advantage is that the structure is simple and the assembly is convenient.
- FIG. 1 is a schematic diagram of the structure of the electric hair dryer of the present invention.
- FIG. 2 is a cross-sectional view 1 indicated by S in FIG. 1 in an example of the present invention.
- FIG. 3 is a cross-sectional view 2 indicated by S in FIG. 1 in yet another example of the present invention.
- FIG. 4 is a cross-sectional view 3 indicated by S in FIG. 1 in another example of the present invention.
- FIG. 5 is a schematic structural diagram of a notch tube according to an example of the present invention.
- FIG. 6 is a schematic diagram of another angle structure of the notch tube according to the present invention.
- FIG. 7 is a schematic diagram of another angle structure of the notch tube according to the present invention.
- FIG. 8 is a schematic structural view of the air outlet according to the present invention.
- FIG. 9 is a schematic structural view of the air outlet of the present invention from another angle.
- FIG. 10 is a schematic diagram of another structure of the notch tube according to the present invention.
- FIG. 11 is a schematic diagram of another structure of the notch tube according to the present invention.
- FIG. 12 is a schematic diagram of yet another structure of the notch tube according to the present invention.
- FIG. 13 is another schematic structural diagram of the air outlet according to the present invention.
- FIG. 14 is a schematic structural view of the non-enclosed pipeline of the present invention.
- 15 is a schematic structural view of the heating unit of the present invention.
- FIG. 16 is a schematic diagram of the structure of the hair dryer in an example of the present invention.
- 17 is a partial cross-sectional view of the hair dryer in an example of the present invention.
- FIG. 18 is an enlarged view of A in FIG. 17.
- FIG. 19 is an enlarged view of B in FIG. 17.
- 20 is a cross-sectional view of the handle assembly in an example of the present invention.
- 21 is an exploded view of the handle assembly in an example of the present invention.
- 22 is a schematic structural view of the outer handle in an example of the present invention.
- FIG. 23 is another cross-sectional view of the handle assembly according to an example of the present invention.
- 24 is an exploded view of the handle assembly according to yet another example of the present invention.
- 25 is a cross-sectional view of the handle assembly according to another example of the present invention.
- Fig. 26 is an enlarged view of C in Fig. 25.
- an electric hair dryer includes a housing 1, a handle assembly 2 connected to the housing 1, a fan unit 22, a heating unit 3, an air inlet 4 and an air outlet 5;
- the fan unit 22 is used to draw airflow into the electric blower from the air inlet 4 and blow out from the air outlet 5 to form a main air duct 6, and the heating unit 3 is used to heat the airflow;
- the fan unit 22 includes a fan blade 2203 and a motor 2201 for driving the fan blade 2203 to rotate;
- the main air duct 6 includes an axial section 602 extending along the axial direction of the housing 1, the housing 1 is provided with a notch barrel 7 with a notch 701, the notch barrel 7 and the cylindrical shape inside the housing 1
- the wall 8 defines the axial section 602.
- the airflow direction of the axial section 602 is as indicated by arrows in 2, 3, and 4.
- the fan unit 22 may be disposed in the housing 1, at this time, the air inlet 4 is located at the rear end of the housing 1, the first air outlet is located at the front end of the housing 1, and the heating unit 3 is disposed in the housing 1 and located in the axial section 602
- the fan unit 22 can also be provided in the handle assembly 2, at this time, the air inlet 4 is provided on the handle assembly 2, and the air inlet 4 is located below the fan unit 22, the air outlet is located at the front end of the housing 1, the heating unit 3 can be provided Within the housing 1 and in the axial section 602, it can also be disposed within the handle assembly 2.
- the cylindrical wall 8 inside the housing 1 may be the inner side wall of the housing 1, and the axial section 602 of the main air duct 6 is defined by the inner side wall of the housing 1 and the outer side wall of the notched barrel 7 ; It can also be an inner tube provided in the outer shell 1 as a separate component, and the axial section 602 of the main air duct 6 is defined by the inner side wall of the inner tube and the outer side wall of the notch tube 7.
- part of the airflow of the axial section 602 is collected and stored at the notch 701, or the airflow of the axial section 602 enters the inner space of the notch barrel 7 through the notch 701 ,
- the rest of the airflow extends along the space defined by the cylindrical wall 8 and the outer wall of the notch barrel 7 and is blown out from the air outlet, thereby reducing the air volume and wind pressure at the moment of startup; as the working time of the hair dryer increases, the notch 701 or the notch barrel 7
- the airflow inside is gradually collected until saturation, and the air volume and pressure are gradually increased and gradually constant to improve the user experience.
- the notch 701 will be described in detail below. As shown in FIG. 5, the notch 701 extends along the axis (b-b ') of the notch barrel 7. The ratio of the length of the notch 701 to the length of the notch barrel 7 is not Less than 1/2, the length of the notch 701 is L1, and the maximum length B of the notch barrel 7 is.
- the notch 701 may extend from the upstream end of the notch tube 7 or may extend from a position close to the upstream end. In the present invention, "upstream” refers to a position near the rear end of the housing 1, and “downstream” refers to a position away from the rear end of the housing 1. In this example, the ratio of the length of the notch 701 to the length of the notch barrel 7 is 0.95. Increase the area of the wind storage area to effectively buffer the air volume and wind pressure at the moment when the motor 2201 starts.
- the central angle of the notch 701 is ⁇ , 15 ° ⁇ 180 °, which has the advantages of not only buffering the air volume and wind pressure at the instant of the start of the hair dryer, but also ensuring the loss of wind pressure and air volume Not serious, dry hair quickly; when ⁇ ⁇ 15 °, the gap 701 is too small, and the buffer effect on the air volume and wind pressure at the instant of the hair dryer is not obvious; when ⁇ > 180 °, the gap 701 is too large, causing a large amount of The air flow accumulated in the casing 1 cannot be blown out from the air outlet in time, which causes serious air volume loss.
- the central angle ⁇ is the angle formed by the two longest lines that form the two ends of the notch 701 to the axis of the notch tube 7.
- the connection between the handle assembly 2 and the housing 1 forms a communication port 9 for communication between the two, and the notch 701 extends to the upstream side of the communication port 9; or, the handle assembly 2 A communication port 9 connecting the two is formed at the connection with the housing 1.
- the notch 701 extends to / over the downstream side of the communication port 9; or the notch 701 extends between the upstream side and the downstream side of the communication port 9. In this example, the notch 701 crosses the downstream side of the communication port 9.
- the communication port 9 is staggered from the notch 701.
- staggered means that the edges of the notch 701 are staggered from the communication port 9, and the shortest distance from the notch tube 7 to the communication port 9 is the side wall of the notch tube 7.
- the notch 701 is located above the axis of the housing 1. Furthermore, the notch 701 is arranged symmetrically with respect to the axis of the handle assembly 2.
- the notch barrel 7 is provided with a perforation 702 that allows the airflow of the main air duct 6 to enter the notch barrel 7, and the projections of the perforation 702 and the notch 701 at least partially coincide.
- the projections of the axes of the perforation 702 and the notch 701 are parallel or coincide, preferably the projections of the notch 701 cover the projections of the perforation 702, that is, the projections of the axes of the perforation 702 and the notch 701 coincide.
- the axis of the notch 701 is parallel to the axis (b-b ') of the notch tube 7.
- the width of the perforation 702 may be the same as the width of the notch 701; or, the width of the perforation 702 is smaller than the width of the notch 701; In this example, the width of the perforation 702 is smaller than the width of the notch 701.
- the width of the perforation 702 is K1, which means that it is projected in the direction perpendicular to the axis of the notch barrel 7 and the maximum width perpendicular to the axis of the notch barrel 7; The maximum length parallel to the axis 7 of the notch barrel.
- the length of the perforation 702 is shorter than the length of the notch 701, thereby reducing the loss of air volume and wind pressure.
- the projection of the center line (kc-kc ') of the perforation 702 is parallel to or coincides with the projection of the center line of the handle assembly 2. It can be understood that the center line of the perforation 702 intersects the projection of the center line of the handle assembly 2.
- the perforation 702 is located below the axis of the cylindrical wall 8 and is disposed opposite to the airflow inlet 10.
- an auxiliary air outlet 11 is provided at the front end of the notch tube 7, and the airflow in the notch tube 7 is blown out from the auxiliary air outlet 11.
- the notch barrel 7 is provided with a perforation 702 that allows the airflow of the main air duct 6 to enter the notch barrel 7.
- the perforation 702 is located on the upstream side of the starting end of the notch 701, and the two are arranged oppositely.
- the notch 701 is a perforation 702 that allows airflow into the notch barrel 7.
- the air outlet 5 is an unclosed gap at the end of the axial section 602.
- unclosed gap means that the tuyere 5 as a whole has two open ends 12, and the area formed between the open ends 12 (called the open portion 13) is not used in the axial area of the main air duct 6
- the narrow slit of the air flow of the segment 602 is blown out.
- the non-closed gap may be a continuous gap for the air flow of the main air duct 6 axial section 602 to blow out; it may also be a combination of a plurality of small gaps for the main air duct 6 axial section 602 to blow out air flow.
- an opening 13 is formed between the beginning of the first small gap and the end of the last small gap between the open end 12 It is an entity, but it can also be in other forms.
- the advantage of making the air outlet 5 a "non-closed slit" is that the wind pressure of the airflow blown from the air outlet 5 is large, and this part of the airflow drives the airflow of the open portion 13 of the non-closed slit, and the air pressure of the airflow is small , A certain distance between the outside of the hair dryer and the air outlet 5 and before reaching the surface of the hair, the two airflows converge into a single airflow, and the wind pressure is appropriately reduced. When blowing long hair, it is not easy to blow the hair at an excessively large flying angle.
- the non-closed gap has an opening portion 13, and the central angle ⁇ of the opening portion 13 is 15 ° ⁇ ⁇ ⁇ 180 °.
- the advantage is that the wind pressure to the hair can be reduced and the air flow can be timely removed. Blowing out of the shell 1 does not cause a great loss of wind pressure; when ⁇ ⁇ 15 °, the effect of reducing wind pressure is not obvious, and the hair is easily messed up by blowing.
- the central angle ⁇ refers to the angle formed by the connection between the two ends of the open portion 13 (that is, the beginning and end of the non-closed gap) and the center of the non-closed gap; if both ends of the open portion 13 have a certain width or end
- the shape of the part is irregular, it is the angle formed by the two lines on the two ends with the minimum length of the line connecting the center of the non-closed gap.
- the central angle ⁇ refers to the angle formed by the longest two lines from the open end 12 to the center line of the non-closed gap.
- the center line of the non-closed gap is the same as the axis of the notch 701 and the notch barrel 7.
- the air flow part of the main air duct 6 is blown out from the opening part 13.
- the open portion 13 is located on the side of the centerline of the non-closed gap. This situation indicates that the non-closed gap is placed around its centerline, and the center of the non-closed gap is on the inner side.
- the airflow at the opening 13 driven by the airflow forms a complete circle. According to the distance between the air outlet 5 and the hair when the user blows the hair, the two airflows will merge into one before reaching the hair, improving the blowing effect.
- the opening 13 is located above the center line of the housing 1. According to the user's habit of holding an electric hair dryer during the blowing process, the area below the center line of the casing 1 is the part that always plays a major role in the entire blowing process.
- the air flow at the opening 13 is mainly caused by the main air blowing from the air outlet 5
- the airflow of the air duct 6 is generated, and the air volume and pressure are relatively small. If the user is used to blowing the air outlet 5 of the hair dryer close to the hair, then the two airflows reach the surface of the hair before they merge into one, and the opening 13 is located
- the upper part of the center line of the casing 1 is beneficial to make the wind pressure and the air flow blow to the hair, so as to quickly dry the hair.
- Both ends of the opening 13 are located on both sides of the centerline of the handle assembly 2. Both ends of the opening 13 may be symmetrical or asymmetrical with respect to both sides of the centerline of the handle assembly 2.
- the non-closed projection is surrounded by multiple curves end to end, that is, the non-closed gap is defined by multiple members.
- the casing 1 is provided with a notch barrel 7, the axial section 602 is defined by the notch barrel 7 and the cylindrical wall 8 inside the casing 1, and the non-closed gap is defined by the notch barrel 7 and the cylindrical wall 8 limited.
- the notch 701 extends along the axial direction of the housing 1. The notch 701 may extend from the upstream end of the notch barrel 7 to its downstream, or may extend from the downstream end of the notch barrel 7 to its upstream.
- the cylindrical wall 8 is provided with a downwardly extending extension 14 that closes a portion of the gap between the notched barrel 7 and the cylindrical wall 8 to form the non-closed
- the gap in one case, the gap between the notched cylinder 7 and the cylindrical wall 8 is ring-shaped, the extension 14 closes a part of the annular gap to obtain the non-closed gap, the extension 14 abuts against the outer side wall of the gap cylinder 7 and opens Part 13 is the extension 14 shown.
- the non-closed gap has a C-shaped, U-shaped and other similar shapes; in another case, as shown in FIG.
- the notch 701 is provided at the front end of the notch tube 7, and the extension 14 closes at least a portion of the notch 701 ,
- the non-closed gap has a C-shaped, U-shaped and other similar shapes.
- the notch 701 extends backward from the front end of the notch tube 7, and the ratio of the length of the notch 701 to the length of the notch tube 7 is not less than 1/2.
- the extending portion 14 closes the notch 701, so that the airflow of the axial section 602 before reaching the non-closed gap is substantially the same as its shape, so that the airflow of the axial section 602 is along the side wall and the notch of the extending portion 14
- the limitation of the side wall of the tube 7 and the tube-shaped wall 8 is quickly blown out from the air outlet 5, the air flow will not accumulate in the housing 1, reducing the loss of air volume.
- the front end of the notch barrel 7 is provided with a second notch 15703701 spaced apart from the notch 701, and the extension 14 closes the second notch 15703701 to form the Close the gap.
- the non-closed gap has an opening 13 which faces the same direction as the notch 701, and the opening 13 is the second notch 15703701.
- the same axis of the opening 13 and the notch 701 has the advantage of reducing Air volume loss.
- the end of the housing 1 has an opening 16, and an air outlet member 17 is provided in the opening 16.
- the air outlet member 17 includes a barrier 171 in the middle and an exterior
- the outer ring 172, the outer ring 172 and the blocking member 171 are connected by a rib 173, and the non-closed gap is defined by the outer ring 172 and the blocking member 171.
- the inner casing 1 is further provided with an inner cylinder, and the air outlet member 17 is installed on the inner cylinder.
- a barrier 171 is provided in the cylindrical wall 8, the barrier 171 and the cylindrical wall 8 are connected by a rib 173, and the non-closed gap is defined by the cylindrical wall 8 and the barrier 171.
- the airflow in the axial section 602 includes an airflow that is annular before reaching the non-closed gap, and the annular airflow is blown out from the non-closed gap; in this case, the inner cylinder 1 is provided with an inner cylinder, which The annular air flow is defined by the outer side wall of the inner cylinder and the cylindrical wall 8 inside the outer casing 1.
- the projection of the non-closed gap is surrounded by a single closed curve, that is, the non-closed gap is defined by one member.
- the housing 1 is provided with a non-closed duct 18, and the airflow having the same shape as the non-closed slit is defined by the non-closed duct 18, and the non-closed slit is located at the end of the non-closed duct 18, so
- the airflow of the axial section 602 includes the airflow having the same shape as the airflow before reaching the non-closed gap, and the airflow is blown out from the non-closed gap.
- the heating unit 3 is provided in the axial section 602.
- the heating unit 3 includes a notch barrel 7 having a notch 701 extending in the direction of its axis, the notch barrel 7
- the cylindrical wall 8 inside the housing 1 defines the axial section 602. Through the setting of the notch tube 7, the airflow can be temporarily collected in the interior of the housing 1, so that the airflow and the heating unit 3 have sufficient time to transfer heat, and then be blown out of the air outlet 5 under the influence of other airflow, to avoid the heating wire 302 Red, safer to use.
- the ratio of the length of the notch 701 to the length of the notch barrel 7 is not less than 1/2, forming a wind-out area to perform heat exchange with the heating unit 3 to prevent the heating wire 302 from redness.
- the length of the gap 701 is not less than 2/3 of the length of the gap tube 7.
- the heating unit 3 further includes a plurality of mica pieces 301 installed on the notch tube 7 and a heating wire 302 wound on the plurality of mica pieces 301, and the plurality of mica pieces 301 are provided at least on both sides of the notch 701; Further, the plurality of mica pieces 301 are arranged at regular intervals along the axial direction of the notch tube 7.
- the heating wire 302 surrounds the entire circle; or the heating wire 302 is only wound around the mounting bracket, and the gap 701 is opened.
- the notch barrel 7 is provided with a structure for fixing the mica sheet 301 corresponding to the notch 701, especially when the notch 701 is long in length, the two ends of the notch barrel 7 are provided with fixing slots for fixing the mica sheet 301;
- the extension direction of the mica piece 301 and the notch 701 are the same, and the mica piece 301 is disposed directly above the notch 701.
- the notch barrel 7 is a ceramic heating device.
- the invention also relates to a heating unit 3 for an electric hair dryer, which includes a plurality of mica sheets 301 and a heating wire 302 wound on the mica sheet 301, wherein the heating unit 3 further includes a mounting bracket having a hollow channel, the A plurality of mica pieces 301 are mounted on the mounting bracket, and the mounting bracket has a notch 701 extending along the axial direction thereof, and the plurality of mica pieces 301 are provided at least on both sides of the notch 701.
- the hollow mounting bracket is the above-mentioned notched tube 7.
- the mounting bracket further includes a second portion 20 extending outward in the circumferential direction of the first portion 19 at the rear end of the first portion 19, and the rear end of the mica sheet 301 abuts against the inner side of the second portion 20.
- the advantage is to improve the fixing reliability of the mica piece 301.
- the first part 19 is the notch tube 7, and the second part 20 is ring-shaped or circular or U-shaped or C-shaped.
- the rear end of the mica sheet 301 has a clamping slot, and the clamping slot abuts against the peripheral edge of the second portion 20.
- the hollow channel is provided with a blocking sheet 21, and the blocking sheet 21 is disposed near the front end of the hollow channel.
- the advantage is that when the length of the gap 701 is long, the strength of the hollow mounting bracket is improved by the blocking sheet 21 to prevent the mounting bracket from deforming
- the air flow in the axial section 602 has a large wind resistance, resulting in a loss of air volume.
- the main air duct 6 includes a handle
- the vertical section 601 defined by the assembly 2 the connection between the handle assembly 2 and the housing 1 defines the airflow inlet 10 of the airflow from the vertical section 601 into the axial section 602, and the notch 701 is arranged offset from the airflow inlet 10.
- the airflow inlet 10 is provided on the cylindrical wall 8, and the airflow inlet 10 and the communication port 9 are correspondingly provided, and the centerline of the airflow inlet 10 is the same as the centerline of the handle assembly 2.
- the notch 701 is located above the axis (a-a ') of the cylindrical wall 8, so that the airflow of the vertical section 601 enters the axial section 602 and most of the airflow is directly blown out from the air outlet, reducing the loss of air volume and pressure ; At the same time, it is conducive to rapid hair drying; and further, the gap 701 is opposite to the airflow inlet 10. Further, the notch barrel 7 is provided with a perforation 702 that allows the airflow of the main air duct 6 to enter the notch barrel 7. The perforation 702 is located below the axis of the cylindrical wall 8 and is opposite to the airflow inlet 10. The advantage is that: The air flow of the vertical section 601 enters the inside of the notch barrel 7 through the shortest distance, reducing the loss of air volume.
- the fan unit 22 is provided in the handle assembly 2, the cylindrical wall 8 is provided with an airflow inlet 10, the airflow in the handle assembly 2 enters the housing 1 from the airflow inlet 10, and the gap 701 and The airflow inlet 10 is staggered.
- the notch barrel 7 is provided with a perforation 702 opposite to the airflow inlet 10, the airflow enters the interior of the notch barrel 7 through the perforation 702, the airflow can promote the airflow at the notch 701, and the notch 701 The collected air flow is blown out from the air outlet 5 to take away heat.
- the fan unit 22 is provided in the handle assembly 2, the air inlet 4 is provided in the handle assembly 2, and the handle assembly 2 is further provided with a main air duct 6.
- the air duct 23 may define part of the main air duct 6 or all of the main air duct 6.
- the air duct 23 is preferably made of soft rubber, such as silica gel. The advantage is that the airflow sucked into the main air duct 6 by the fan unit 22 yuan is directly transmitted through the air duct 23. On the one hand, the air duct 23 forms a seal, and the probability of the air flow of the main air duct 6 being leaked from the assembly gap is reduced.
- the air duct 23 can also react to the sound of the main air duct 6 It acts as a buffer to reduce noise and shock.
- the main air duct 6 includes a vertical section 601 located in the handle assembly 2 and an axial section 602 located in the housing 1 and at an angle to the vertical section 601.
- the vertical section 601 communicates with the axial section 602 through the airflow inlet 10, and the wind guide tube 23 defines the vertical section 601.
- the air flow drawn by the fan unit 22 from the air inlet 4 into the handle assembly 2 is defined by the air guide tube 23 to enter the axial section 602, and the air guide tube 23 forms a seal to prevent the air flow from leaking from the assembly gap of the handle assembly 2 and reduce Air volume and air pressure loss generated during air flow transportation.
- the air duct 23 extends from the bottom to the airflow inlet 10.
- the advantage is that the main air duct 6 is a non-linear air duct.
- the air duct 23 extends to the airflow inlet so that the airflow of the vertical section 601 is sent to the axial section 602 by the air duct 23, reducing the air volume and air pressure loss caused by the airflow reversal.
- the air guide pipe 23 extends upward from the air inlet 4, the air guide pipe 23 may also extend upward from below the air inlet 4, at this time, the air guide pipe A perforation is provided on the position corresponding to the air inlet 4 on the 23 to allow airflow to enter the air duct 23; when the air inlet 4 is provided on the side wall of the handle assembly 2 and the bottom of the handle assembly 2, the air duct is preferred 23 extends upward from the side wall air inlet 4 to obtain a larger air intake.
- the air duct 23 can also extend upward from the side wall air inlet 4.
- the air duct 23 is provided corresponding to the side wall air inlet 4
- a perforation is provided at the location to allow airflow to enter the air duct 23 from the air inlet 4 of the side wall; when the air inlet 4 is provided at the bottom of the handle assembly 2, the lower end of the air duct 23 is located above the air inlet 4.
- the lower end of the air duct 23 may be open, so that as much airflow as possible enters the interior of the air duct 23; the lower end of the air duct 23 may also be covered
- the bottom of the handle assembly 2 and the lower end corresponding to the air inlet 4 are provided with perforations so that the airflow enters the air guide tube 23.
- the air duct 23 extends to the airflow inlet 10, which may be the location where the air duct 23 extends exactly to the airflow inlet 10, that is, it can be understood that the upper end of the side wall of the air duct 23 surrounds the airflow inlet 10; It may be that the upper end of the air duct 23 extends to the vicinity of the airflow inlet 10 and there is a height difference with the airflow inlet 10 (the upper end of the air duct 23 is slightly lower or slightly higher than the airflow inlet 10).
- the distance between the upper end of the air duct 23 and the airflow inlet 10 is L, 0mm ⁇ L ⁇ 20mm, the advantage is to prevent the airflow from leaking from the gap of the handle assembly 2 to cause the reduction of wind pressure and air volume; when L> 20mm, the handle The assembly gap of the assembly 2 may cause the airflow to leak out, resulting in reduced wind pressure and volume.
- the upper end of the air duct 23 is flush with the airflow inlet 10 or slightly lower.
- L 0mm.
- L can also be 5mm, 8mm, 10mm, 15mm.
- the casing 1 is provided with a cylindrical wall 8 defining an axial section 602.
- the end of the air duct 23 near the cylindrical wall 8 has a flange 2301.
- the flange 2301 is located between the cylindrical wall 8 and the housing 1.
- the flanging 2301 is a portion of the top of the air guide tube 23 extending outward along its axis, and is pressed by the outer wall of the cylindrical wall 8 and the inner wall of the housing 1 to fix the air guide tube 23 so that when the hair dryer is working
- the air duct 23 is displaced, to ensure that the airflow is delivered to the axial section 602, and to reduce the air volume and wind pressure loss.
- the air duct 23 is sleeved on the fan unit 22.
- the fan unit 22 may be completely located in the air duct 23, or may be partially located in the air duct 23.
- the advantage is that the airflow sucked by the fan unit 22 directly enters the air guide pipe 23, reducing the wind resistance, thereby reducing the air volume and wind pressure loss.
- the handle assembly 2 includes a fixing bracket 201 for fixing the fan unit 22 and an outer handle 202 sleeved on the outside thereof, the fixing bracket 201 is connected to the housing 1, and the handle assembly 2 Separated from the housing 1 set.
- the side wall of the fixing bracket 201 is provided with a clamping slot 24 for fixing the fan unit 22, and the air guiding tube 23 is clamped into the clamping slot 24.
- the air duct 23 reduces the vibration felt when the handle assembly 2 is held by a human hand, and improves the fixing reliability of the fan unit 22; on the other hand, it reduces noise.
- the slot 24 may be formed by the inner side wall of the fixed bracket 201 being recessed outward in a direction away from the axis thereof; or the inner side wall of the fixed bracket 201 may be provided with a rib extending toward the axis, the rib and the inner side wall of the fixed bracket 201 Formation card slot 24.
- the air inlet 4 is provided on the outer handle 202 and located below the fan unit 22.
- the air inlet 4 is elongated and has a plurality of distributions around the axis of the handle assembly 2.
- the outer handle 202 includes a first outer handle 2021 and a second outer handle 2022 that are detachably arranged up and down.
- the first outer handle 2021 is located above the second outer handle 2022, and the air inlet 4 is provided at the second On the outer handle 2022.
- the first outer handle 2021 and the second outer handle 2022 are both cylindrical, and the elongated air inlet 4 is evenly distributed on the side wall of the second outer handle 2022.
- the length of the first outer handle 2021 is greater than the length of the second outer handle 2022.
- the first outer handle 2021 and the second outer handle 2022 are fitted through a spin fastener.
- the fixing bracket 201 includes a first portion 2011 that extends along the axis direction and has an opening 2014 perpendicular to the axis direction of the fixing bracket 201.
- a ring-shaped connecting portion 2013 for connecting to the housing 1 is provided.
- the ring-shaped connecting portion 2013 and the housing 1 are connected by screws 32.
- the fan unit 22 is provided in the opening 2014, and the fan unit 22 is fixed by the outer handle 202 and the fixing bracket 201; the inner side wall of the outer handle 202 is provided with a plurality of ribs 2023, a plurality of ribs 2023 and the fan unit 22 Interference fit, furthermore, a plurality of ribs 2023 fixes the fan unit 22 by pressing the air duct 23 and cooperating with the fixing bracket 201.
- the outer handle 202 has a cylindrical shape, and the upper end of the outer handle 202 is disposed around the ring-shaped connecting portion 2013 and covers the connection between the ring-shaped connecting portion 2013 and the housing 1.
- the upper end of the outer handle 202 is provided with a buckle 26, and the casing 1 is provided with a buckle hole 27 that cooperates with the buckle 26; the buckle 26 and the buckle hole 27 are provided with a plurality of and spaced evenly, the buckle 26 extends into the card hole 27, narrowing the gap between the upper end of the outer handle 202 and the housing 1.
- the upper end of the outer handle 202 abuts the housing 1, and the lower portion of the outer handle 202 is connected to the fixing bracket 201.
- a groove 25 is provided at the position where the housing 1 abuts the outer handle 202, and the groove 25 has a ring shape. The upper end of the housing 1 extends into the groove 25, so that the surface of the housing 1 has no steps, the surface is smooth, and more beautiful.
- the motor 2201 further includes a frame 2202, the fan blade 2203 is disposed in the frame 2202, and the air duct 23 is sleeved on the frame.
- the motor 2201 drives the fan blade 2203 to rotate and draws airflow from the air inlet 4, and the airflow enters the air guide pipe 23 through the inside of the frame, that is, the frame has its own air duct.
- the frame can be completely located in the air duct 23, or it can be partially located in the air duct 23.
- the length of the frame is La
- the length of the frame in the air duct 23 is Lb, 1 / 2 ⁇ Lb / La ⁇ 1
- the benefits are Improve the reliability of the air duct 23 on the frame; when Lb / La ⁇ 1/2, the air duct 23 is easy to fall off the frame, increasing the difficulty of assembly, and the unreliable cooperation between the air duct 23 and the frame may be Causes airflow leakage, resulting in loss of air volume and pressure.
- the electric hair dryer further includes a filter mesh 28, which is in a sheet shape and is located above the air inlet 4, the filter mesh 28 is arranged perpendicular to the axis of the handle assembly 2, in this example, the filter mesh 28 is preferably a plastic mesh, Or metal mesh.
- the hair dryer further includes a wire guard 30 for protecting electric wires.
- a hollow cylindrical portion 29 is provided below the fixing bracket 201.
- the wire guard 30 passes through the hollow cylindrical portion 29.
- the wire protector 30 is preferably made of soft rubber material, in this case, silicone material, and the cable 31 passes through the wire protector 30 to prevent the friction between the cable 31 and the hard handle assembly 2 to cause damage to the cable 31, resulting in safety problems such as leakage and extended use. life.
- the hollow cylindrical portion 29 includes a first C-shaped post 2901 and a second C-shaped post 2902, the first C-shaped post 2901 is connected to the first portion 2011 of the fixed bracket 201, and the second C-shaped post 2902 and the first outer
- the handle 2021 is connected, and when the first outer handle 2021 is sleeved on the fixing bracket 201 in this example, the first C-shaped post 2901 and the second C-shaped post 2902 are snap-fitted to form a hollow post mounting portion.
- the first C-shaped post 2901 may be provided integrally with the fixing bracket 201, or may be provided separately.
- the second C-shaped post 2902 and the first outer handle 2021 may be provided integrally or separately.
- the fixing bracket 201 further includes a second portion 2012 extending along the axis direction thereof, and the fan unit 22 is provided in the opening 2014, so The second part 2012 is connected to the first part 2011 to cover the opening 2014 to fix the fan unit 22; in this example, the air duct 23 is sleeved on the fan unit 22 and then placed in the first part 2011, Fasten the second part 2012 and the first part 2011, and then put on the outer handle 202; furthermore, the two-half fixed bracket 201 can be connected by screws 32, that is, the first part 2011 and the second part 2012 are connected by screws 32 are connected together to achieve fixed reliability.
- the card slot 24 may be provided only on the first part 2011, or may be provided on the second part 2012 at the same time, which makes the fixing more reliable and reduces vibration and noise.
- the first outer handle 2021 and the fixing bracket 201 and the connection reliability of the outer handle 202 and the housing 1 are connected by screws 32 at the lower end.
- the difference between the third embodiment and the first embodiment is that the first outer handle 2021 and the fixing bracket 201 are connected by a screw 32 at the lower end. Furthermore, the first outer handle 2021 and the first part 2011 of the fixing bracket 201 are connected by a screw 32 at the lower end .
- the handle assembly 2 includes a fixing bracket 201 for fixing the fan unit 22 and an outer handle 202 sleeved on the outside thereof, and the air duct 23 is located on the fixing bracket 201 and the outer handle Between 202 and sleeved on the fixed bracket 201, the fan unit 22 is disposed in the fixed bracket 201.
- Embodiment 5 The difference between Embodiment 5 and Embodiment 1 is that the filter screen 28 is cylindrical and integrally formed with the outer handle 202 by injection molding.
- the filter screen 28 is provided at the air inlet 4.
- the filter screen 28 is preferably nylon network.
- the center line of the outer shell, the axis of the outer shell, the center line of the inner barrel, the axis of the inner barrel, the center line of the notch barrel, and the axis of the notch barrel are the same.
Landscapes
- Cleaning And Drying Hair (AREA)
Abstract
Description
Claims (20)
- 一种电吹风,包括外壳,与外壳连接的手柄组件、风扇单元、加热单元、进风口和出风口;所述风扇单元用于抽吸气流从进风口进入电吹风并从出风口吹出形成主风道,所述加热单元用于加热该气流;所述风扇单元包括扇叶和用于驱动该扇叶旋转的电机;其特征在于,所述主风道包括沿外壳的轴线方向延伸的轴向区段,所述外壳内设有具有缺口的缺口筒,所述缺口筒与外壳内部的筒状壁限定所述轴向区段。
- 根据权利要求1所述的电吹风,其特征在于,所述缺口沿缺口筒的轴线方向延伸,所述缺口的长度与缺口筒的长度之比不小于1/2。
- 根据权利要求2所述的电吹风,其特征在于,所述手柄组件与外壳连接处形成使两者连通的连通口,所述缺口延伸至连通口的上游侧。
- 根据权利要求2所述的电吹风,其特征在于,所述手柄组件与外壳连接处形成使两者连通的连通口,所述缺口延伸至/越过连通口的下游侧;或者所述缺口延伸至连通口的上游侧和下游侧之间。
- 根据权利要求4所述的电吹风,其特征在于,所述连通口与缺口错开设置。
- 根据权利要求2所述的电吹风,其特征在于,所述缺口位于外壳轴线的上方。
- 根据权利要求1所述的电吹风,其特征在于,所述缺口筒上设有使主风道的气流进入缺口筒的穿孔,所述穿孔和缺口的投影至少部分重合;或者,所述缺口筒上设有使主风道的气流进入缺口筒的穿孔,所述穿孔位于缺口起始端的上游侧,且两者相对设置。
- 一种电吹风,包括外壳、与外壳连接的手柄组件、风扇单元、加热单元、进风口和出风口;所述风扇单元用于抽吸气流从进风口进入电吹风并从出风口吹出形成主风道,所述加热单元用于加热该气流;所述风扇单元包括扇叶和用于驱动该扇叶旋转的电机;其特征在于,所述主风道包括沿外壳的轴线方向延伸的轴向区段,所述加热单元设置在所述轴向区段中,所述加热单元包括缺口筒,所述缺口筒具有沿其轴线方向延伸的缺口,所述缺口筒与外壳内部的筒状壁限定所述轴向区段。
- 根据权利要求8所述的电吹风,其特征在于,所述加热单元还包括安装在缺口筒上的多个云母片、绕制在多个云母片上的发热丝,所述多个云母片至少设于缺口的两侧,所述发热丝至少绕制在所述缺口筒的外侧壁的上方。
- 根据权利要求9所述的电吹风,其特征在于,所述多个云母片中的至少一个对应所述缺口设置,且该云母片具有朝向缺口且沿缺口筒轴向延伸的悬空端。
- 根据权利要求9所述的电吹风,其特征在于,所述缺口筒包括轴向延伸的第一部分,所述缺口设于第一部分,所述云母片与第一部分卡接,且所述多个云母片均匀间隔设置。
- 根据权利要求11所述的电吹风,其特征在于,所述缺口筒还包括在第一部分后端沿第一部分的周向向外延伸的第二部分,所述云母片的后端与第二部分的内侧面相抵靠。
- 根据权利要求12所述的电吹风,其特征在于,所述云母片的后端具有卡槽,所述卡槽与第二部分的周缘相抵靠。
- 一种电吹风,包括外壳,与外壳连接的手柄组件、风扇单元、加热单元、进风口和出风口;所述风扇单元用于抽吸气流从进风口进入电吹风并从出风口吹出形成主风道,所述加热单元用于加热该气流;所述风扇单元包括扇叶和用于驱动该扇叶旋转的电机;其特征在于,所述主风道包括沿外壳的轴线方向延伸的轴向区段,所述外壳内设有具有缺口的缺口筒,所述缺口沿外壳的轴线方向延伸,所述出风口为位于轴向区段端部的非闭合缝隙。
- 根据权利要求14所述的电吹风,其特征在于,所述非闭合缝隙具有开放部,所述开放部位于非闭合缝隙中心线的一侧。
- 根据权利要求15所述的电吹风,其特征在于,所述开放部位于外壳中心线的上方。
- 根据权利要求16所述的电吹风,其特征在于,所述开放部的两端位于手柄组件中心线的两侧。
- 根据权利要求15所述的电吹风,其特征在于,所述开放部与缺口朝向同一方向。
- 根据权利要求14所述的电吹风,其特征在于,所述轴向区段由缺口筒和外壳内部的筒状壁限定,所述非闭合缝隙由缺口筒和筒状壁限定。
- 根据权利要求19所述的电吹风,其特征在于,所述电吹风还包括封闭部,所述封闭部封闭缺口筒和筒状壁之间的部分缝隙以形成所述非闭合缝隙。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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CN201811321728.9 | 2018-11-08 | ||
CN201811321728.9A CN111150203A (zh) | 2018-11-08 | 2018-11-08 | 一种电吹风 |
CN201811370145.5A CN111194984A (zh) | 2018-11-17 | 2018-11-17 | 一种电吹风 |
CN201811370145.5 | 2018-11-17 |
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WO2020093981A1 true WO2020093981A1 (zh) | 2020-05-14 |
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PCT/CN2019/115432 WO2020093981A1 (zh) | 2018-11-08 | 2019-11-04 | 电吹风 |
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WO (1) | WO2020093981A1 (zh) |
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US20180049532A1 (en) * | 2016-08-19 | 2018-02-22 | Shih-Ling Hsu | Hair dryer |
CN207055114U (zh) * | 2017-08-11 | 2018-03-02 | 浙江金达电机电器有限公司 | 大风量吹风机 |
CN209463501U (zh) * | 2018-11-08 | 2019-10-08 | 杭州乐秀电子科技有限公司 | 一种电吹风 |
CN209463503U (zh) * | 2018-11-08 | 2019-10-08 | 杭州乐秀电子科技有限公司 | 一种电吹风 |
CN209463500U (zh) * | 2018-11-08 | 2019-10-08 | 杭州乐秀电子科技有限公司 | 一种电吹风 |
CN209463499U (zh) * | 2018-11-08 | 2019-10-08 | 杭州乐秀电子科技有限公司 | 一种电吹风 |
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US20180049532A1 (en) * | 2016-08-19 | 2018-02-22 | Shih-Ling Hsu | Hair dryer |
CN207055114U (zh) * | 2017-08-11 | 2018-03-02 | 浙江金达电机电器有限公司 | 大风量吹风机 |
CN209463501U (zh) * | 2018-11-08 | 2019-10-08 | 杭州乐秀电子科技有限公司 | 一种电吹风 |
CN209463503U (zh) * | 2018-11-08 | 2019-10-08 | 杭州乐秀电子科技有限公司 | 一种电吹风 |
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