CN115998066A - Electric hair drier and accessory thereof - Google Patents

Abstract

The present disclosure provides a hair dryer and accessories thereof. The hair dryer accessory has an air inlet side and an air outlet side, the air inlet side being adapted to be attached to an air outlet of a hair dryer body, the hair dryer accessory comprising: an annular side wall extending from the wind inlet side toward the wind outlet side, wherein a first wind hole is formed in the annular side wall; a center pipe structure provided at a center position of a space surrounded by the annular side wall and having a tubular wall extending from the wind inlet side toward the wind outlet side, the tubular wall being provided with a second wind hole; an airflow guiding structure disposed between the first and second air holes for guiding an airflow from the second air hole to the first air hole; and a containment structure attached to an outer side of the annular sidewall and adapted to contain the airflow portable substance, the containment structure allowing airflow from the first wind aperture to the containment structure, thereby entraining the airflow portable substance into an external environment.

Description

Electric hair drier and accessory thereof

Technical Field

The application relates to the field of electric hair dryers, and more particularly relates to an electric hair dryer accessory and an electric hair dryer comprising the electric hair dryer accessory.

Background

Electric hair dryers are common household appliances, which are mainly composed of an electric hair dryer main body, a power cord and related accessories. The main body of the electric hair dryer mainly comprises a shell, a handle, an electric heating wire, a fan blade, a motor and the like, wherein the electric heating wire, the fan blade and the motor are contained in the shell. When the electric hair drier is powered on, the motor drives the fan blade to rotate, air is sucked in from the air inlet and heated by the electric heating wire, and then hot air is output from the air outlet. The attachment of the hair dryer may include various types of air nozzles that may be attached to the air outlet of the hair dryer body to provide a desired directional air outlet. In addition, some hair dryers may be provided with additional functions such as dispersing an odorous or air-borne substance such as fragrance or hair care agents into the air or onto the hair of the user to meet certain user needs.

Disclosure of Invention

It is an object of the present disclosure to provide an electric hair dryer accessory adapted to contain an air flow portable substance that can emit the air flow portable substance at a reduced temperature in a hot air operation mode of the electric hair dryer.

According to a first aspect of the present disclosure, there is provided a hair dryer attachment. The accessory has an air inlet side and an air outlet side, the air inlet side being adapted to be attached to an air outlet of a hair dryer body, characterized in that the hair dryer accessory comprises: an annular side wall extending from the wind inlet side toward the wind outlet side, wherein a first wind hole is formed in the annular side wall; a center pipe structure provided at a center position of a space surrounded by the annular side wall and having a tubular wall extending from the wind inlet side toward the wind outlet side, the tubular wall being provided with a second wind hole; an airflow directing structure disposed between the first and second air holes for directing airflow from the second air hole toward the first air hole; and a containment structure attached to an outer side of the annular sidewall and adapted to contain an airflow portable substance, the containment structure further configured to be in airflow communication with both the first wind aperture and an external environment to allow airflow from the first wind aperture to pass through the containment structure to entrain the airflow portable substance into the external environment.

By means of the hair dryer accessory of the present disclosure, it is possible to provide the air flow from the central area of the hair dryer body, in particular, with the air flow portable substance, which helps the air flow portable substance to be able to operate at a reduced temperature even in the hot air mode of the hair dryer.

In some embodiments, the airflow directing structure is a duct structure defining an airflow passage from the second air aperture to the first air aperture. By means of the duct structure, the above-mentioned air flow can be better directed to the air flow portable substance.

In some embodiments, the duct structure has a first side plate extending at an angle to the direction of air flow blown out from the air outlet of the hair dryer body. In these embodiments, the first side panel may thereby direct airflow from the second air aperture to the first air aperture.

In some embodiments, the duct sidewall of the duct structure on the side facing the air outlet is closed. In this way, it is possible to prevent hot air blown out from the radially outer region of the interior of the hair dryer body from entering the duct structure via the duct side wall, thereby avoiding an unnecessary increase in the temperature of the air flow directed to the air flow portable substance.

In some embodiments, the duct structure tapers from the wind outlet side to the wind inlet side. In this way, the duct structure can be made to "split" the air flow originating from the main body of the hair dryer on the wind-in side, thereby reducing wind resistance.

In some embodiments, a plurality of wind guiding vanes are further included, each wind guiding vane extending from the tubular wall to the annular side wall, wherein two adjacent wind guiding vanes form part of the duct structure. In still other embodiments, the piping structure further comprises: the first side plate is positioned on the air outlet side and spans between two adjacent air guide blades. In still other embodiments, two adjacent wind guiding vanes are joined together at the wind inlet side. In these embodiments, a convenient way of constructing the conduit structure is provided.

In some embodiments, the containment structure is a drawer structure comprising an outer containment housing and an inner drawer adapted to be removably inserted into the outer containment housing and adapted to store the airflow portable substance. In this way, the user can conveniently store the airflow portable substance.

In some embodiments, the containment structure has a first through hole facing the first wind hole, and a second through hole facing an external environment; the first and second through holes are opposite each other, and the gas flow portable substance is adapted to be positioned between the first and second through holes. In these embodiments, the airflow through the airflow-portable substance may be emitted directly and quickly into the external environment.

In some embodiments, an auxiliary channel is formed between the containment structure and the annular sidewall, the auxiliary channel having a first opening on the wind-in side and a second opening on the wind-out side; the first opening is exposed to an external environment in a state in which the hair dryer accessory is attached to an air outlet of the hair dryer main body. In these embodiments, the containment structure may be thermally isolated from the annular sidewall by means of the auxiliary channel, thereby further reducing the temperature of the containment structure and the air flow portable substance stored therein.

In some embodiments, the central tube structure has an air inlet located at the air inlet side, an air outlet net is provided at the air outlet of the electric hair dryer main body, and the air inlet is adjacent to a central position of the air outlet net in a state that the electric hair dryer accessory is attached to the air outlet of the electric hair dryer main body, so as to receive air flow blown out from the central position of the air outlet net. In these embodiments, the center tube structure may more effectively receive the cooler air flow from the center region of the main body of the hair dryer.

In some embodiments, the airflow portable substance includes at least one of a fragrance and a conditioner.

According to a second aspect of the present disclosure, there is provided a hair dryer. The electric hair dryer comprises: a hair dryer main body; and a hair dryer attachment according to the first aspect.

In some embodiments, the hair dryer accessory is adapted to attach at the outlet of the hair dryer body in a screw or snap-on manner. In this way, a detachable hair dryer attachment may be provided.

In some embodiments, heating wires are disposed within the hair dryer body, the heating wires being disposed in a radially outer region of the hair dryer body interior such that an air flow temperature from a central region of an air outlet of the hair dryer body is less than an air flow temperature from the radially outer region within the air outlet.

Drawings

The above and other features, advantages and aspects of embodiments of the present disclosure will become more apparent by reference to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements.

Fig. 1 is a perspective view illustrating an overall structure of a hair dryer according to an exemplary embodiment of the present disclosure.

Fig. 2 is a perspective view schematically showing another view of the overall structure of the electric hair dryer according to an exemplary embodiment of the present disclosure.

Fig. 3 is a schematic cross-sectional view showing the overall structure of the electric hair dryer according to the exemplary embodiment of the present disclosure.

Fig. 4 illustrates a schematic perspective view of a hair dryer attachment according to an example embodiment of the present disclosure.

Fig. 5 illustrates a perspective schematic view of another view of a hair dryer attachment according to an example embodiment of the present disclosure.

Fig. 6 illustrates a schematic cross-sectional view of a hair dryer attachment according to an example embodiment of the present disclosure.

Detailed Description

Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure have been shown in the accompanying drawings, it is to be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather, these embodiments are provided only for a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustration purposes only and are not intended to limit the scope of the present disclosure.

As previously mentioned in the background section, known hair dryers may be designed to provide additional functionality, for example, to dispense air-borne substances such as fragrances or hair-care agents into the air or onto the hair of a user in the normal mode of the hair dryer to meet certain user needs. However, the inventors have noted that known hair dryer designs typically blow air-borne substances such as fragrances or hair conditioners from the hair dryer in the hot air mode of the hair dryer, which hot air may be detrimental to the air-borne substances which are typically only suitable for being emitted or volatilized at low temperatures, as the higher temperatures caused by the hot air flow may result in a change in the characteristics of the air-borne substances themselves.

It is an object of the present disclosure to provide an improved hair dryer accessory structure that can improve the operating temperature of air flow portable substances such as fragrances or hair care agents in the hot air mode of a hair dryer, thereby providing higher quality dispersion or volatilization of the air flow portable substances from the hair dryer. Here, the inventors have noted that most of the hot air blown by the electric hair dryer has a lower temperature at its center, especially for electric hair dryers having annularly arranged heating wires. The idea of the present disclosure is thus to achieve the emission of air-flow portable substances from an electric hair dryer with a lower temperature air flow blown out from the central area of the electric hair dryer. In particular, the air flow portable substance may be arranged in a receiving structure on the hair dryer attachment and an air flow channel from a central region of the hair dryer to the receiving structure is constructed with the air flow guiding structure. In this way, it is possible to enable the air-flow portable substance to operate at a lower temperature even in the hot air mode of the hair dryer.

For better understanding of the concepts of the present disclosure, fig. 1 to 3 show overall structural schematic diagrams of an electric hair dryer according to an example embodiment of the present disclosure, wherein fig. 1 shows a perspective schematic diagram of the overall structure of the electric hair dryer according to an example embodiment of the present disclosure; fig. 2 is a perspective view schematically showing another view of the overall structure of the electric hair dryer according to an exemplary embodiment of the present disclosure; and fig. 3 is a schematic cross-sectional view showing the overall structure of the electric hair dryer according to the exemplary embodiment of the present disclosure.

As can be seen from fig. 1 to 3, the hair dryer 100 mainly comprises a hair dryer body 5 and a hair dryer attachment 1, wherein the hair dryer attachment 1 may be attached to a hair dryer opening 54 of the hair dryer body 5. As shown in the drawings, the hair dryer body 5 is a common hair dryer body structure, and thus only the structure of the hair dryer body 5 will be briefly described below.

The electric hair dryer main body 5 may include a handle portion 51 and a main body portion 52, wherein one end of the handle portion 51 may be attached to the main body portion 52, the other end may be connected to a power cord, and a power switch 53 may be provided on the handle portion 51. In this way, electrical components within the body 52 may be powered from the power supply line.

The main body portion 52 may include a housing (not shown), and an air inlet 56 on one side of the housing and an air outlet 54 on the other side of the housing. In some embodiments, the air outlet 54 may be provided with an air outlet mesh 55. The inside of the main body part 52 may be arranged with a motor 57, a fan blade 58 and a heating wire (not shown), wherein in the hot air mode of the electric hair dryer, the air flow entering the main body part 52 from the air inlet 56 may become hot air after passing through the heating wire and be blown out from the air outlet 54. In general, the heating wires may be disposed between the air outlet 54 and the wind blades 58 in the main body portion 53, and arranged in a ring shape. It is easy to understand that arranging the heating wires in this way makes it possible to make the temperature of the air flow blown out from the central region of the main body portion 53 significantly lower than the temperature of the air flow blown out from the radially outer side inside the main body portion 53.

The hair dryer attachment 1 may have an air inlet side 10 and an air outlet side 11, wherein the air inlet side 10 may be attached to the air outlet 54 of the hair dryer body 5. In some embodiments, the air inlet side 11 of the hair dryer attachment 1 may be attached to the air outlet 54 in a screw or snap-fit manner. In this way, a detachable connection of the hair dryer attachment 1 to the hair dryer body 5 is provided.

Fig. 4 to 6 show more detailed structural schematic views of different view angles of the hair dryer attachment 1, wherein fig. 4 shows a schematic perspective view of the hair dryer attachment according to an exemplary embodiment of the present disclosure; fig. 5 illustrates a perspective schematic view of another view of a hair dryer attachment according to an example embodiment of the present disclosure; fig. 6 illustrates a schematic cross-sectional view of a hair dryer attachment according to an example embodiment of the present disclosure.

As can be seen from fig. 4 to 6, the hair dryer attachment 1 mainly comprises an annular side wall 13, a central tube structure 14, an air flow guiding structure 31, and a receiving structure 15.

The annular sidewall 13 may form part of a housing of the hair dryer attachment 1, which may extend from the air inlet side 10 to the air outlet side 11 of the hair dryer attachment 1. Here, the term "annular" may include, but is not limited to, a regular or irregular annular shape such as circular, elliptical, square, etc. According to the design of the present disclosure, a first wind hole 18 is provided on the annular side wall 13. As will be described later, an air flow passage to the accommodating structure 15 may be defined between the first air holes 18 and the second air holes 17.

The central tube structure 14 may be arranged in a central position of the space surrounded by the annular side wall 13. The central tube structure 14 is a tubular structure, which may have a tubular wall 16 extending from the wind inlet side 10 towards said wind outlet side 11, as well as a wind inlet 45 at the wind inlet side 10 and a wind outlet 46 at the wind outlet side 11. In a state in which the hair dryer attachment 1 is attached to the air outlet 54 of the hair dryer main body 5, the air inlet 45 is adjacent to the center position of the air outlet net 55 of the hair dryer attachment 1 for receiving the air flow blown out from the center position of the air outlet net 55. As previously described, the air flow from the central location of the air outlet net 55 may be cooler than the ambient air flow, and thus the lower temperature air flow may enter the central tube structure 14 from the air inlet 45. Further, the tubular wall 16 of the central tube structure 14 may be provided with a second air hole 17, which second air hole 17 is in air flow communication with the aforementioned first air hole 18. Thus, at least a portion of the airflow entering the central tube structure 14 may flow from the second air holes 17 to the first air holes 18.

To better direct the flow of the above-described air flow from the second air holes 17 to the first air holes 18, in some embodiments, the air outlet 46 of the center tube structure 14 at the air outlet side 10 may be provided as closed or semi-closed. Of course, in other embodiments, it is also possible that the center tube structure 14 is completely open at the air outlet 46 of the air outlet side 10.

Further, the hair dryer attachment 1 may further comprise an air flow guiding structure 31, which may further guide the flow of air flow from the second air hole 17 to the first air hole 18. In some embodiments, the airflow directing structure 31 may be just one or more airflow directing plates, which may be provided between the first and second wind holes 18, 17 and arranged to direct airflow from the second wind hole 17 towards the first wind hole 18. In still other embodiments, the airflow directing structure 31 may be a duct structure that may extend from the tubular wall 16 of the central tube structure 14 to the annular side wall 13, which duct structure may surround the second wind holes 18 on one side of the tubular wall 16 and the first wind holes 17 on one side of the annular side wall 13. The cross-section of the above-mentioned duct structure may be any cross-section as long as the duct structure is adapted to guide the air flow from the second air holes 17 towards the first air holes 18.

In some embodiments, the duct sidewall of the duct structure on the side facing the air outlet 54 is closed. Here, the term "closed" means that the duct sidewall does not have any openings or slits at the side of the air outlet 54, but rather is a complete and continuous closed shape. It will be readily appreciated that by such a provision of the duct side wall, it is possible to avoid leakage of hot air blown out from the radially outer region of the interior of the main body of the hair dryer into the duct structure via the duct side wall, thereby avoiding unnecessary raising of the temperature of the air flow directed to the air flow portable substance. In a further embodiment, the entire duct sidewall of the duct structure may be closed, which means that the duct structure is itself annular, continuously closed in shape, except for the two end openings facing the second air holes 17 and 18, without any other openings or slits, which may further reduce the likelihood of leakage of hot air blown out from the radially outer region inside the hair dryer body into the duct structure.

In some embodiments, the duct structure may taper from the wind out side 11 toward the wind in side 10. In this way, the duct structure may be assisted in "splitting" the air flow coming from the main hair dryer body 5 on the air inlet side 10, so as not to block the flow of the air flow blown by the main hair dryer body 5 and increase the wind resistance.

In still other embodiments, the hair dryer attachment 1 may further include a plurality of air guiding vanes 21, each air guiding vane 21 may extend from the tubular wall 16 to the annular side wall 13, and the plurality of air guiding vanes may be evenly spaced between the tubular wall 16 and the annular side wall 13. In a further embodiment, the plurality of wind guiding blades 21 may be integrally formed in a spiral structure, so that spiral wind discharge may be achieved. In yet further embodiments, two adjacent wind guiding vanes 21 may form part of a duct structure. In this way, the air flow guiding structure 31 can be more conveniently constructed.

In embodiments in which adjacent wind guiding vanes 21 are utilized to form part of a duct structure, the duct structure may further comprise a first side plate 22 located on the wind outlet side 11, which first side plate 22 may span between two adjacent wind guiding vanes 21. Further, the two adjacent wind guiding blades 21 may be gradually closed up at the wind inlet side 10 and joined together. In this case, the duct structure may be implemented by only three of the two adjacent wind guide vanes 21 and the first side plate 22. Since the two adjacent wind guiding blades 21 are joined at the wind inlet side 10, the duct space inside the duct structure thus formed also has the effect of tapering from the wind outlet side 11 towards the wind inlet side 10, thereby also helping the duct structure to "split" the air flow originating from the main hair dryer body 5 at the wind inlet side 10 without increasing the wind resistance.

The containment structure 15 may be positioned and attached to the outside of the annular sidewall 13 and adapted to contain the airflow portable substance. In some embodiments, at least a portion of the housing structure of the receiving structure 15 may be formed as a unitary structure with the annular sidewall 13, which helps to improve the firmness of the hair dryer attachment. In still other embodiments, the containment structure 15 may be removably attached to the annular metering wall 13, which allows for more independent design and manufacture of both the containment structure and the annular sidewall.

The containment structure 15 is arranged in an open configuration that allows for airflow communication with both the upper first wind aperture 18 and the external environment and allows airflow from the first wind aperture 18 to pass through the containment structure 15, thereby entraining airflow portable substances into the external environment.

The term "gas flow portable substance" herein means any substance from which a portion of the substance may be carried as a gas flow passes therethrough. Such gas flow portable materials may include volatile or non-volatile solid, gaseous and liquid materials, particularly solid and liquid materials, for example. When the airflow-carrying substance includes a volatile substance, the airflow passing therethrough may accelerate the evaporation of the substance, and when it includes a non-volatile substance, the airflow may assist in the emission of the non-volatile substance in the airflow. As typical examples of the air-flow portable substance, it may include various fragrances, odorants, and hair conditioners, for example. During the use, under the drive of the air flow, the aromatic taste or smell from the aromatic and the odorant can be diffused in the surrounding environment so as to meet the specific smell requirement of the user; the hair care molecules of the hair care agent can be dispersed into the surrounding environment, especially the hair of the user, so as to moisten the hair of the user or protect the hair of the user from damage.

In some embodiments, the containment structure 15 may be a drawer structure, which may include, for example, an outer containment housing 26 and an inner drawer 25, wherein the inner drawer 25 is adapted to receive the airflow portable substance and to be removably inserted into the outer containment housing 26. It will be readily appreciated that providing the drawer-style housing structure 15 may allow for more convenient placement or replacement of the airflow portable substance. In particular, at least one of the outer containment casing 26 and the inner drawer 25 may be provided with an elastic snap-in structure to allow the inner drawer 25 to be snappingly fixed within the outer containment casing 26 after insertion into the outer containment casing 26. This prevents the inner drawer 25 from falling out of the housing 15 during use of the hair dryer.

As an example of the accommodating structure 15 of the open structure, the accommodating structure 15 (e.g., the outer accommodating case 26 and/or the inner drawing member 25) may be provided with a first through hole 28 facing the first wind hole 18 and a second through hole 27 directly facing the external environment, wherein the first through hole 28 and the second through hole 27 are opposite to each other, and the above-mentioned air-flow portable substance may be placed on an air-flow passage between the first through hole 28 and the second through hole 27. In this way, the air flow from the first air holes 18 may pass through the first through holes 28, then through the containment structure 15, and into the external environment via the second through holes 27. Further, the above-described receiving structure 15 may have other through holes in addition to the first through hole 28 and the second through hole 27, which may further facilitate the emission of the air-flow portable substance from the receiving structure 15 to the external environment.

It is easy to understand that, with the above arrangement, the low temperature air flow originating from the central region of the air outlet 54 of the hair dryer main body 5 can enter the external environment via the central tube structure 14, the second air hole 17, the air flow guiding structure 31, the first air hole 18, the first through hole 28, the air flow portable substance located in the accommodating structure 15, and the air flow passage defined by the first through hole 17, thereby achieving the emission of the air flow portable substance to the external environment. Since the air flow passing through the air flow portable substance is the colder air flow blown out from the central region of the electric hair drier, the air flow portable substance can be prevented from being dispersed at an inappropriately high temperature, and the performance degradation of the air flow portable substance is avoided.

From the foregoing description, it will be appreciated that the air flow portable substance is generally more suitable for operation at lower temperatures, and that in order to further reduce the heat conduction of the hair dryer in the hot air mode to the receiving structure via the annular side wall, the hair dryer attachment 1 may in some embodiments be further provided with an auxiliary channel between the receiving structure 15 and the annular side wall 13, which auxiliary channel may have a first opening 24 at the air inlet side 10 and a second opening 23 at the air outlet side 11. Thereby, the containment structure 15 and the air flow portable substance contained therein may be separated from the annular sidewall 13 by a predetermined distance by means of air. In particular, in a state in which the hair dryer accessory 1 is attached to the air outlet 54 of the hair dryer main body 5, the first opening 24 may be exposed to the external environment (see fig. 2 or 3). With this arrangement, during use of the hair dryer, cooler air flow from the external environment may also enter the auxiliary channel via the first opening 24 and/or the second opening 23, thereby further reducing the operating temperature of the receiving structure 15 and the air flow portable substance contained therein.

The operation principle and exemplary structure of the electric hair dryer 100 of the present disclosure have been described in detail above. It is readily appreciated that with the hair dryer 100 of the present disclosure, airflow-portable substances may be allowed to operate at lower temperatures even in the hot air mode of the hair dryer, which may facilitate the airflow-portable substances to be emitted in an external environment with higher quality.

While the invention has been illustrated and described in detail in the drawings and foregoing description, such illustration and description are to be considered illustrative or exemplary and not restrictive; the present disclosure is not limited to the disclosed embodiments. Other variations and combinations of the disclosed embodiments can be understood and practiced by those skilled in the art from a study of the drawings, the disclosure, and the appended claims, in practicing the claimed invention.

In the claims, the word "comprising" does not exclude other elements, and the indefinite article "a" or "an" does not exclude a plurality. A single element or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain features are recited in mutually different embodiments or in dependent claims does not indicate that a combination of these features cannot be used to advantage. The scope of the present application encompasses any possible combination of the features recited in the various embodiments or the dependent claims without departing from the spirit and scope of the present application.

Any reference signs in the claims shall not be construed as limiting the scope of the present disclosure.

Claims (15)

1. A hair dryer accessory (1) having an air inlet side (10) and an air outlet side (11), the air inlet side (10) being adapted to be attached to an air outlet (54) of a hair dryer body (5), characterized in that the hair dryer accessory (1) comprises:

an annular side wall (13) extending from the air inlet side (10) toward the air outlet side (11), wherein a first air hole (18) is formed in the annular side wall (13);

a center pipe structure (14) provided at a center position of a space surrounded by the annular side wall (13) and having a tubular wall (16) extending from the wind inlet side (10) toward the wind outlet side (11), the tubular wall (16) being provided with a second wind hole (17);

an airflow directing structure (31) disposed between the first air hole (18) and the second air hole (17) for directing airflow from the second air hole (17) to the first air hole (18); and

-a containment structure (15) attached to the outside of the annular side wall (13) and adapted to contain an air flow portable substance, the containment structure (15) being further configured to be in air flow communication with both the first air holes (18) and the external environment to allow an air flow from the first air holes (18) to pass through the containment structure (15) so as to entrain the air flow portable substance into the external environment.

2. A hair dryer accessory (1) according to claim 1, wherein the air flow guiding structure (31) is a duct structure defining an air flow passage from the second air hole (17) to the first air hole (18).

3. A hair dryer accessory (1) according to claim 2, characterized in that the duct side wall of the duct structure facing the air outlet (54) side is closed.

4. A hair dryer accessory (1) according to claim 3, characterized in that the duct structure tapers from the air outlet side (11) to the air inlet side (10).

5. A hair dryer accessory (1) according to claim 2, further comprising a plurality of wind guiding vanes (21), each wind guiding vane (21) extending from the tubular wall (16) to the annular side wall (13), wherein two adjacent wind guiding vanes (21) form part of the duct structure.

6. A hair dryer accessory (1) according to claim 5, wherein the duct structure further comprises: the first side plate (22) is positioned on the air outlet side (11), and the first side plate (22) spans between two adjacent air guide blades (21).

7. A hair dryer accessory (1) according to claim 6, wherein two adjacent wind guiding blades (21) are joined together at the wind inlet side (10).

8. Hair dryer attachment (1) according to any of claims 1-7, characterized in that said containing structure (15) is a drawer structure comprising an outer containing housing (26) and an inner drawing member (25), said inner drawing member (25) being adapted to be removably inserted into said outer containing housing (26) and to store said air flow portable substance.

9. The hair dryer accessory (1) according to any of claims 1-7, wherein said housing structure (15) has a first through hole (28) facing said first air hole (18), and a second through hole (27) facing the external environment; the first through hole (28) and the second through hole (27) are opposite to each other, and the gas flow portable substance is adapted to be positioned between the first through hole (28) and the second through hole (27).

10. The hair dryer accessory (1) according to any of the claims 1-7, characterized in that an auxiliary channel is formed between the receiving structure (15) and the annular side wall (13), said auxiliary channel having a first opening (24) at the air inlet side (10) and a second opening (23) at the air outlet side (11);

the first opening (24) is exposed to an external environment in a state in which the hair dryer attachment (1) is attached to an air outlet (54) of the hair dryer body (5).

11. Hairdryer accessory (1) according to any of claims 1 to 7, characterized in that said central tube structure (14) has an inlet opening (45) at said inlet side (10), an outlet net (55) being provided at the outlet opening (54) of said hairdryer body (5),

in a state that the hair dryer attachment (1) is attached to an air outlet (54) of the hair dryer main body (5), the air inlet (45) is adjacent to a central position of the air outlet net (55) for receiving an air flow blown out from the central position of the air outlet net (55).

12. The hair dryer accessory (1) according to any of claims 1 to 7, wherein the air flow portable substance comprises at least one of a fragrance and a hair conditioner.

13. An electric hair dryer (100), characterized by comprising:

a hair dryer main body (5); and

a hair dryer attachment (1) according to any of claims 1-12.

14. The hair dryer (100) according to claim 13, characterized in that the hair dryer accessory (1) is adapted to be attached at the air outlet (54) of the hair dryer body (5) in a screw or snap-on manner.

15. The hair dryer (100) according to claim 13 or 14, characterized in that heating wires are provided in the hair dryer body (5), which heating wires are provided in a radially outer region of the interior of the hair dryer body (5) such that the air flow temperature from the central region of the air outlet (54) of the hair dryer body (5) is smaller than the air flow temperature from the radially outer region in the air outlet (54).

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