CN220236268U

CN220236268U - Bladeless hair dryer

Info

Publication number: CN220236268U
Application number: CN202320624708.9U
Authority: CN
Inventors: 关建国; 何革军; 蒋宁; 彭东琨
Original assignee: Foshan Shunde Lepuda Motor Co ltd
Current assignee: Foshan Shunde Lepuda Motor Co ltd
Priority date: 2023-03-27
Filing date: 2023-03-27
Publication date: 2023-12-26
Anticipated expiration: 2033-03-27

Abstract

The utility model belongs to the technical field of hair care appliances, and discloses a bladeless blower which comprises a handle, an air duct, a high-speed motor, a first spacer bush, a second spacer bush and an air duct connecting piece, wherein the air duct connecting piece is arranged on the air duct; the outer side wall of the air duct is connected with one end of the handle, and the air duct is provided with an air inlet, a flow passage and an air outlet which are communicated in sequence; the first spacer bush is arranged in the runner, so that the runner is divided into a first air channel and a second air channel which are not communicated with each other, and the second air channel surrounds the first air channel; the second spacer bush is arranged in the first air duct, an inner cavity is formed in the second spacer bush, the first air duct surrounds the inner cavity, and the inner cavity is communicated with the air outlet; the air channel connecting piece is arranged in the first air channel, the air inlet end of the air channel connecting piece is communicated with the second air channel, and the air outlet end of the air channel connecting piece is communicated with the inner cavity; the high-speed motor is arranged in the first air channel and is positioned between the air inlet and the second spacer bush. The bladeless blower can reduce windage loss during air inlet and increase effective air quantity during air blowing.

Description

Bladeless hair dryer

Technical Field

The utility model belongs to the technical field of hair care appliances, and particularly relates to a bladeless blower.

Background

Hair dryers are mainly used for drying and shaping hair. With the continuous progress of technology, there are no leaf blowers on the market, and the motor is arranged in the handle of the blower, so that the wind barrel of the no leaf blower can be designed into a hollow form. However, the design of setting the motor in the handle of hair-dryer makes in the air can only get into the hair-dryer by the fresh air inlet that sets up on the handle, and not only windage loss is big, and when the wind that gets into in the hair-dryer is blown out by the air outlet of dryer at a high speed moreover, can only draw out the air of air outlet outer loop side, leads to the hair-dryer to blow out effective amount of wind less.

Accordingly, the prior art is subject to improvement and development.

Disclosure of Invention

The utility model aims to provide a bladeless blower, which not only can reduce windage loss during air inlet, but also can increase effective air quantity during air blowing.

The utility model provides a bladeless blower, which comprises a handle, an air duct, a high-speed motor, a first spacer bush, a second spacer bush and an air duct connecting piece, wherein the first spacer bush is arranged on the air duct;

the outer side wall of the air duct is connected with one end of the handle, and the air duct is provided with an air inlet, a flow passage and an air outlet which are communicated in sequence; the first spacer bush is arranged in the flow channel, so that the flow channel is divided into a first air channel and a second air channel which are not communicated with each other, and the second air channel surrounds the first air channel; the second spacer bush is arranged in the first air duct, an inner cavity is formed in the second spacer bush, the first air duct surrounds the inner cavity, and the inner cavity is communicated with the air outlet; the air channel connecting piece is arranged in the first air channel, the air inlet end of the air channel connecting piece is communicated with the second air channel, and the air outlet end of the air channel connecting piece is communicated with the inner cavity; the high-speed motor is arranged in the first air duct and is positioned between the air inlet and the second spacer bush.

According to the bladeless blower provided by the utility model, through the arrangement of the first air duct, the second air duct and the inner cavity in the air duct and the design of arranging the high-speed motor in the first air duct, air directly enters the air duct, so that windage loss is reduced, noise is reduced, meanwhile, air can be supplemented to the inner ring side of the air outlet through the second air duct and the inner cavity, and high-speed air flow can simultaneously jet air on the inner ring side and air on the outer ring side, so that the effective air quantity blown out by the blower is increased.

Further, a shrink sleeve is arranged at one end, close to the air outlet, of the first air channel, and the caliber of the shrink sleeve gradually decreases from the air inlet direction to the air outlet direction.

According to the utility model, the caliber of the shrink sleeve is designed to gradually decrease from the air inlet direction to the air outlet direction, so that the high-speed air flow in the first air channel flows along the inner side wall of the shrink sleeve and radially is ejected out from the air outlet at a high speed, and the air on the inner ring side and the outer ring side of the high-speed air flow can be better guided, and the effective air quantity blown out by the blower is further increased.

Further, an expansion sleeve is arranged at one end of the first spacer sleeve, which is close to the air outlet, and the caliber of the expansion sleeve gradually increases from the air inlet direction to the air outlet direction.

According to the utility model, the expansion sleeve is arranged at one end of the first spacer sleeve, which is close to the air outlet, and the caliber of the expansion sleeve is designed to gradually increase from the air inlet direction to the air outlet direction, so that high-speed air flow generated in the first air duct can accurately and rapidly flow to the air outlet along the inner side wall of the expansion sleeve, and high-speed air flow loss is avoided.

Further, the side wall of the expansion sleeve is provided with a vent hole, and the vent hole is communicated with the second air duct and the air inlet end of the air duct connecting piece.

Further, the inner side wall of the first spacer bush is provided with a limiting boss protruding inwards, and one surface of the limiting boss facing the air inlet is abutted with one end, away from the air inlet, of the high-speed motor.

Further, a fixing sleeve is inserted at one end, close to the air inlet, of the first spacer sleeve, and one end, far away from the air inlet, of the fixing sleeve is abutted to one end, close to the air inlet, of the high-speed motor.

Further, an air inlet net is arranged at one end of the fixed sleeve, which is far away from the high-speed motor.

Further, a filter screen is arranged in the fixed sleeve, and the filter screen is positioned between the air inlet screen and the high-speed motor.

Further, the inner side wall of the fixing sleeve is provided with a step table, and the filter screen is arranged on the step table.

Further, an electric heating element is arranged in the first air duct, and the electric heating element is located between the high-speed motor and the air outlet.

According to the bladeless blower, the first air duct, the second air duct and the inner cavity are arranged in the air duct, and the high-speed motor is arranged in the first air duct, so that air directly enters the air duct, the windage loss is reduced, the noise is reduced, meanwhile, the air can be supplemented to the inner ring side of the air outlet through the second air duct and the inner cavity, and the high-speed air flow can simultaneously jet the air on the inner ring side and the air on the outer ring side, so that the effective air quantity blown by the blower is increased.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

Fig. 1 is a schematic structural diagram of a bladeless blower according to an embodiment of the present utility model.

Fig. 2 is a cross-sectional view of a bladeless blower according to an embodiment of the present utility model.

Fig. 3 is an exploded view of a bladeless blower according to an embodiment of the present utility model.

Description of the reference numerals: 1. a handle; 2. an air duct; 21. an air inlet; 22. a flow passage; 221. a first air duct; 222. a second air duct; 23. an air outlet; 3. a high-speed motor; 4. the first spacer bush; 41. a limit boss; 5. the second spacer bush; 51. an inner cavity; 6. an air duct connecting piece; 7. a shrink sleeve; 8. an expansion sleeve; 81. a vent hole; 9. a fixed sleeve; 91. a step table; 10. an air inlet net; 11. a filter screen; 12. an electric heating element.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features.

In the description of the present utility model, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as to include, for example, fixedly coupled, removably coupled, or integrally coupled, unless otherwise specifically indicated and defined. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.

As shown in fig. 1 and 2, the bladeless blower of the present utility model includes a handle 1, a wind drum 2, a high-speed motor 3, a first spacer 4, a second spacer 5, and a wind channel connecting member 6. The outer side wall of the air duct 2 is connected with one end of the handle 1, and the air duct 2 is provided with an air inlet 21, a flow passage 22 and an air outlet 23 which are communicated in sequence. The first spacer 4 is disposed in the flow channel 22, so that the flow channel 22 is divided into a first air channel 221 and a second air channel 222, which are not communicated with each other, and the second air channel 222 surrounds the first air channel 221. The second spacer bush 5 is arranged in the first air channel 221, an inner cavity 51 is formed in the second spacer bush 5, the first air channel 221 surrounds the inner cavity 51, and the inner cavity 51 is communicated with the air outlet 23. The air duct connecting piece 6 is arranged in the first air duct 221, the air inlet end of the air duct connecting piece 6 is communicated with the second air duct 222, and the air outlet end of the air duct connecting piece 6 is communicated with the inner cavity 51. The high-speed motor 3 is disposed in the first air duct 221 and located between the air inlet 21 and the second spacer 5.

In a specific application, the high-speed motor 3 is electrified to suck air into the first air duct 221 and the second air duct 222 from the air inlet 21, the air sucked into the first air duct 221 forms high-speed air flow under the action of the high-speed motor 3 and is ejected from the air outlet 23 at a high speed, the air sucked into the second air duct 222 flows into the inner cavity 51 through the air duct connecting piece 6 and flows out from the inner ring side of the air outlet 23, and the high-speed air flow is ejected from the air outlet 23 at a high speed while simultaneously guiding the air on the inner ring side and the air on the outer ring side of the air outlet 23, so that the effective air quantity blown out by the blower is increased.

Through this technical scheme for in the air direct entering dryer 2, reduced windage loss, reduced the noise, simultaneously, the air can be through second wind channel 222 and inner chamber 51 supplement to the interior ring side of air outlet 23, make the high-speed air current that is penetrated by the air outlet 23 high-speed can carry out the injection to the air of air and the outer ring side of air outlet 23 interior ring side simultaneously, thereby make the effective amount of wind that the hair-dryer blows out increase.

The high-speed motor 3 is a motor having a rotational speed exceeding 10000 r/min. The high-speed motor 3 in this embodiment is a prior art, which already integrates the fan blade and the motor, so that the high-speed motor 3 can suck the air into the first air duct 221 and the second air duct 222 from the air inlet 21 when being electrified.

In some preferred embodiments, as shown in fig. 2, a shrink sleeve 7 is disposed at an end of the first air duct 221 near the air outlet 23, and the caliber of the shrink sleeve 7 gradually decreases from the air inlet 21 to the air outlet 23. In a specific application, the shrinkage sleeve 7 is arranged at one end, close to the air outlet 23, in the first air duct 221, and the caliber of the shrinkage sleeve 7 is designed to gradually decrease from the direction of the air inlet 21 to the direction of the air outlet 23, so that high-speed air flow in the first air duct 221 flows along the inner side wall of the shrinkage sleeve 7 and radially and is ejected out of the air outlet 23 at a high speed, and therefore air on the inner ring side and air on the outer ring side of the air outlet 23 can be better ejected, and the effective air quantity blown out by the blower is further increased. Specifically, the shrink sleeve 7 may be integrally formed with the second spacer 5.

As shown in fig. 2 and 3, in some preferred embodiments, the end of the first spacer 4 near the air outlet 23 has a expansion sleeve 8, and the caliber of the expansion sleeve 8 gradually increases from the air inlet 21 direction to the air outlet 23 direction. In the specific application, through setting up expansion sleeve 8 in the one end that first spacer 4 is close to air outlet 23 to with expansion sleeve 8's bore design for by air intake 21 direction to air outlet 23 direction increase gradually, make the high-speed air current that produces in the first wind channel 221 can follow expansion sleeve 8's inside wall accurate quick flow to air outlet 23, avoid high-speed air current loss.

In some preferred embodiments, as shown in fig. 3, the side wall of the expansion sleeve 8 is provided with a ventilation hole 81, and the ventilation hole 81 communicates with the second air duct 222 and the air inlet end of the air duct connector 6. In a specific application, the ventilation holes 81 are formed in the side wall of the expansion sleeve 8, so that air entering the second air duct 222 can sequentially enter the inner cavity 51 through the ventilation holes 81 and the air duct connecting piece 6, namely, the air can be supplemented to the inner ring side of the air outlet 23, and therefore, high-speed air flow ejected from the air outlet 23 at a high speed can eject the air on the inner ring side of the air outlet 23, and the effective air quantity blown by the blower is increased.

Specifically, the number of the ventilation holes 81 is four, the four ventilation holes 81 are uniformly distributed on the side wall of the expansion sleeve 8, correspondingly, the air channel connecting piece 6 is provided with four uniformly distributed air inlet ends, and the four air inlet ends are in one-to-one correspondence with the four ventilation holes 81, so that air in the second air channel 222 uniformly flows into the inner cavity 51 through the air channel connecting piece 6. Of course, the number of the ventilation holes 81 may be adaptively increased or decreased according to the actual requirement, and the above is only an embodiment of the present utility model, and should not be limited thereto.

In some preferred embodiments, as shown in fig. 2, the inner side wall of the first spacer 4 has an inward protruding limiting boss 41, and a surface of the limiting boss 41 facing the air inlet 21 abuts against an end of the high-speed motor 3 away from the air inlet 21. In a specific application, the limiting boss 41 protruding inwards is arranged on the inner side wall of the first spacer bush 4, so that the high-speed motor 3 can be conveniently and rapidly installed at a preset position in the first spacer bush 4, and the assembly efficiency is improved.

As shown in fig. 2 and 3, in some preferred embodiments, a fixing sleeve 9 is inserted at an end of the first spacer 4 near the air inlet 21, and an end of the fixing sleeve 9 away from the air inlet 21 abuts against an end of the high-speed motor 3 near the air inlet 21. In a specific application, the fixing sleeve 9 is inserted at one end, close to the air inlet 21, of the first spacer sleeve 4, so that the fixing sleeve 9 is matched with the limiting boss 41 to axially limit the high-speed motor 3, and the high-speed motor 3 is prevented from shifting in the axial direction.

As shown in fig. 2 and 3, in some preferred embodiments, an air intake net 10 is disposed at an end of the fixing sleeve 9 away from the high-speed motor 3. In a specific application, the air inlet net 10 is arranged at one end, far away from the high-speed motor 3, of the fixing sleeve 9, so that a user cannot stretch into the first air duct 221 under the condition of not influencing air inlet, and the use safety is improved.

As shown in fig. 2 and 3, in some preferred embodiments, a filter screen 11 is disposed in the fixing sleeve 9, and the filter screen 11 is located between the air intake screen 10 and the high-speed motor 3. In specific application, the filter screen 11 is arranged in the fixed sleeve 9, so that larger dust in the air can be filtered, and the influence of the larger dust on the high-speed motor 3 caused by the fact that the larger dust enters the high-speed motor 3 is avoided.

In some preferred embodiments, as shown in fig. 2, a step 91 is provided on the inner side wall of the fixing sleeve 9, and the filter screen 11 is disposed on the step 91. In a specific application, the step table 91 is arranged on the inner side wall of the fixed sleeve 9, so that the filter screen 11 can be conveniently and rapidly installed.

As shown in fig. 2 and 3, in some preferred embodiments, the first air duct 221 is provided with an electric heating element 12, and the electric heating element 12 is located between the high-speed motor 3 and the air outlet 23. In a specific application, by disposing the electric heating element 12 in the first air duct 221, the air flow flowing through the electric heating element 12 can be heated, so that the air outlet 23 can blow out hot air. In particular, the heating element 12 may be wound with heating wire. It will be appreciated that, in order to facilitate the installation of the electric heating element 12, a mounting frame may be disposed at one end of the first air duct 221 near the air outlet 23, and in particular, the mounting frame may be integrally formed with the second spacer 5 and the shrink sleeve 7.

As can be seen from the above, the vaneless blower of the present utility model, through the design of arranging the first air duct 221, the second air duct 222 and the inner cavity 51 in the air duct 2 and arranging the high-speed motor 3 in the first air duct 221, air directly enters the air duct 2, thereby reducing windage loss and noise, and meanwhile, air can be supplemented to the inner ring side of the air outlet 23 through the second air duct 222 and the inner cavity 51, so that high-speed air flow can simultaneously jet air on the inner ring side and air on the outer ring side, and the effective air volume blown by the blower is increased.

What has been described above is merely some embodiments of the present utility model. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.

Claims

1. The bladeless blower comprises a handle, an air duct, a high-speed motor, a first spacer bush, a second spacer bush and an air duct connecting piece;

2. The bladeless blower of claim 1, wherein a shrink sleeve is disposed in the first air duct at an end adjacent to the air outlet, and wherein the shrink sleeve has a diameter that gradually decreases from the air inlet direction to the air outlet direction.

3. The bladeless blower of claim 1, wherein an end of the first spacer adjacent the air outlet has a flared sleeve, the flared sleeve having a diameter that increases progressively from the air inlet direction toward the air outlet direction.

4. A vaneless blower as claimed in claim 3, wherein the side wall of the expansion sleeve is provided with a vent hole communicating the second duct and the air inlet end of the duct connector.

5. The vaneless blower of claim 1, wherein an inner sidewall of the first spacer has an inwardly projecting limit boss, a face of the limit boss facing the air inlet being in abutment with an end of the high speed motor remote from the air inlet.

6. The bladeless blower of claim 5, wherein a fixed sleeve is inserted at an end of the first spacer adjacent the air inlet, and wherein an end of the fixed sleeve remote from the air inlet is in abutment with an end of the high speed motor adjacent the air inlet.

7. The vaneless blower of claim 6, wherein an end of the stationary sleeve remote from the high speed motor is provided with an air intake screen.

8. The vaneless blower of claim 7, wherein a filter screen is disposed within the stationary sleeve, the filter screen being positioned between the air intake screen and the high speed motor.

9. The vaneless blower of claim 8, wherein an inner sidewall of the stationary sleeve is provided with a stepped platform, the filter screen being disposed on the stepped platform.

10. The bladeless blower of claim 1, wherein an electrical heating element is disposed within the first air duct, the electrical heating element being located between the high speed motor and the air outlet.