CN217218394U

CN217218394U - Electric hair drier and accessories thereof

Info

Publication number: CN217218394U
Application number: CN202122559412.7U
Authority: CN
Inventors: 潘铁恩
Original assignee: Koninklijke Philips NV
Current assignee: Koninklijke Philips NV
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-08-19
Anticipated expiration: 2031-10-22

Abstract

The present disclosure provides a hair dryer and accessories thereof. This hairdryer annex has into wind side and air-out side, the side of intaking is suitable for attaching to hairdryer body's air outlet, and this hairdryer annex includes: the air conditioner comprises an annular side wall, a first air inlet and a second air outlet, wherein the annular side wall extends from an air inlet side to an air outlet side and is provided with a first air hole; the central pipe structure is arranged at the central position of a space surrounded by the annular side wall and is provided with a tubular wall extending from the air inlet side to the air outlet side, and the tubular wall is provided with a second air hole; an air flow guiding structure disposed between the first air hole and the second air hole for guiding the air flow from the second air hole to the first air hole; and a containment structure attached to an exterior side of the annular sidewall and adapted to contain an air-flow-transportable substance, the containment structure allowing air flow from the first air aperture to the containment structure, thereby entraining the air-flow-transportable substance into an external environment.

Description

Electric hair drier and accessories thereof

Technical Field

The present application relates to the field of hair dryers, and more particularly to a hair dryer attachment and a hair dryer incorporating the same.

Background

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

SUMMERY OF THE UTILITY MODEL

It is an object of the present disclosure to provide a hair dryer attachment adapted to contain a portable stream of air material that can be dispensed at a reduced temperature during a hot air mode of operation of the hair dryer.

According to a first aspect of the present disclosure, a hair dryer attachment is provided. This 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 the hair dryer body, characterized in that the hair dryer accessory comprises: the annular side wall extends from the air inlet side to the air outlet side, and a first air hole is formed in the annular side wall; the central pipe structure is arranged in the central position of a space surrounded by the annular side wall and is provided with a tubular wall extending from the air inlet side to the air outlet side, and a second air hole is formed in the tubular wall; an air flow guiding structure disposed between the first air hole and the second air hole for guiding the air flow from the second air hole to the first air hole; and a containment structure attached to an exterior side of the annular sidewall and adapted to contain an air-flow-transportable substance, the containment structure further configured to be in air-flow communication with both the first air aperture and an external environment to allow air flow from the first air aperture to pass through the containment structure to entrain the air-flow-transportable substance into the external environment.

With the hair dryer attachment of the present disclosure, it is possible to provide particularly air flow-portable substances with an air flow originating from the central area of the hair dryer body, which helps the air flow-portable substances to work at reduced temperatures 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. Through this pipeline structure, can guide above-mentioned air current to the portable material of air current better.

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

In some embodiments, the duct side wall of the duct structure on the side facing the air outlet opening is closed. In this way, it is possible to prevent the hot air blown from the radially outer region inside the hair dryer body from entering into the duct structure via the duct side wall, thereby avoiding unnecessarily raising the temperature of the air flow directed toward the air-flow-carrying substance.

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

In some embodiments, further comprising a plurality of wind directing blades, each wind directing blade extending from the tubular wall to the annular side wall, wherein two adjacent wind directing blades form part of the duct structure. In still other embodiments, the duct structure further comprises: the first side plate is positioned on the air outlet side and stretches across between two adjacent air guide blades. In still other embodiments, two adjacent guide vanes are joined together on the wind inlet side. In these embodiments, a convenient way of constructing the pipe structure is provided.

In some embodiments, the containment structure is a drawer-type structure comprising an outer containment shell and an inner drawer member adapted to be removably inserted into the outer containment shell and adapted to store the portable item of airflow. In this manner, the user may be facilitated to store the portable item of airflow.

In some embodiments, the containment structure has a first through hole facing the first air vent, and a second through hole facing the external environment; the first and second through-holes are opposed to each other, and the air-flow transportable substance is adapted to be positioned between the first and second through-holes. In these embodiments, the airflow through the portable substance can be emitted directly and quickly to the outside environment.

In some embodiments, an auxiliary channel is formed between the receiving structure and the annular sidewall, the auxiliary channel having a first opening on the air inlet side and a second opening on the air outlet side; the first opening is exposed to the external environment in a state where the hair dryer attachment is attached to the hair dryer main body air outlet. 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-portable substance stored therein.

In some embodiments, the central tube structure has an air inlet on the air inlet side, an air outlet net is disposed at the air outlet of the hair dryer main body, and the air inlet is adjacent to the central position of the air outlet net in a state that the hair dryer accessory is attached to the air outlet of the hair dryer main body, so as to receive the air flow blown out from the central position of the air outlet net. In these embodiments, the center tube structure can more effectively receive the relatively cool airflow from the center area of the hair dryer body.

In some embodiments, the air-flow transportable substance comprises at least one of a fragrance and a conditioner.

According to a second aspect of the present disclosure, a hair dryer is provided. This hairdryer includes: the electric hair drier main body; and a hair dryer attachment according to the first aspect.

In some embodiments, the hair dryer attachment is adapted to attach at the hair dryer body's air outlet in a spiral or snap-fit manner. In this manner, a removable hair dryer attachment can be provided.

In some embodiments, said hair dryer body is provided with heating wires inside said hair dryer body, said heating wires being arranged in a radially outer region inside said hair dryer body, so that the temperature of the air flow coming from a central region of the hair dryer body's outlet is lower than the temperature of the air flow coming from a radially outer region inside said outlet.

Drawings

The above and other features, advantages and aspects of various embodiments of the present disclosure will become more apparent by referring 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 shows a perspective schematic view of the overall structure of a hair dryer according to an exemplary embodiment of the present disclosure.

Fig. 2 shows a perspective schematic view of another perspective view of the overall structure of the hair dryer of an exemplary embodiment of the present disclosure.

Fig. 3 shows a schematic sectional view of the overall structure of a hair dryer of an exemplary embodiment of the present disclosure.

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

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

Fig. 6 shows 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 are shown in the drawings, it should 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 merely for the purpose of providing a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and the embodiments of the disclosure are for illustration purposes only and are not intended to limit the scope of the disclosure.

As mentioned in the foregoing background, known hair dryers can be designed to provide additional functionality, such as to distribute an air-entraining substance, such as a fragrance or a conditioner, into the air or onto the user's hair in the normal mode of the hair dryer to meet certain user needs. However, the inventors have noted that known hair dryer designs, which typically blow a portable stream of air such as a fragrance or conditioner from the hair dryer in the hot air mode of the hair dryer, can be disadvantageous for portable streams of air that are typically only suitable for emission or evaporation at low temperatures, as the higher temperatures caused by the hot air stream can result in changes in the characteristics of the portable stream of air itself.

It is an object of the present disclosure to provide an improved hair dryer attachment structure that improves the operating temperature of a portable airflow substance, such as a fragrance or hair conditioner, in the hot air mode of the hair dryer, thereby providing higher quality distribution or volatilization of the portable airflow substance from the hair dryer. The inventors herein have noted that most of the hot air blown by hair dryers has a lower temperature at their center, especially for hair dryers with circularly arranged heating wires. The concept of the present disclosure is therefore to utilise the relatively low temperature air stream issuing from the central region of the hair dryer to effect the emanation of portable items of air from the hair dryer. In particular, it is possible to arrange the air-flow-carrying substance in a receiving structure on the hair dryer attachment and to use the air-flow directing structure to create an air-flow path from the central region of the hair dryer to the receiving structure. In this way, it is possible to make the air flow portable matter work at a lower temperature even in the hot air mode of the hair dryer.

For better understanding of the concept of the present disclosure, fig. 1 to 3 show a schematic view of the overall structure of a hair dryer according to an exemplary embodiment of the present disclosure, wherein fig. 1 shows a schematic perspective view of the overall structure of a hair dryer according to an exemplary embodiment of the present disclosure; fig. 2 shows a perspective schematic view of another perspective view of the overall structure of the hair dryer of an exemplary embodiment of the present disclosure; and fig. 3 shows a cross-sectional schematic view of the overall structure of a hair dryer of an exemplary embodiment of the present disclosure.

As can be seen from fig. 1 to 3, hair dryer 100 mainly comprises hair dryer body 5 and hair dryer attachment 1, wherein hair dryer attachment 1 can be attached to hair dryer body 5 at hair dryer opening 54. As shown in the figures, the hair dryer body 5 is a common hair dryer body structure, so the following description will be given only for simplicity.

The hair dryer body 5 may include a handle portion 51 and a body portion 52, wherein one end of the handle portion 51 may be attached to the 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 manner, power may be supplied from the power supply line to the electrical components within the main body 52.

The body portion 52 may include a housing (not shown), with 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 outlet 54 may be provided with an outlet mesh 55. The inside of the main body 52 may be arranged with a motor 57, a fan 58 and a heating wire (not labeled), wherein in a hot wind mode of the hair dryer, the air flow entering the main body 52 from the air inlet 56 may be changed into hot wind after passing through the heating wire and blown out from the air outlet 54. Generally, the heating wire may be disposed between the air outlet 54 and the fan blades 58 in the main body 53, and be arranged in a ring shape. It is easily understood that arranging the heating wires in this manner 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.

Hair dryer attachment 1 can have an air inlet side 10 and an air outlet side 11, wherein air inlet side 10 can be attached to air outlet 54 of hair dryer body 5. In some embodiments, the air inlet side 11 of hair dryer attachment 1 can be attached to air outlet 54 in a spiral 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. 4-6 show more detailed structural schematic diagrams of different viewing angles of the hair dryer attachment 1, wherein fig. 4 shows a perspective schematic diagram of the hair dryer attachment according to an exemplary embodiment of the present disclosure; fig. 5 shows a perspective schematic view of another perspective of a hair dryer attachment according to an example embodiment of the present disclosure; fig. 6 shows a schematic cross-sectional view of a hair dryer attachment according to an example embodiment of the present disclosure.

As can be seen in 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.

Annular side wall 13 may form part of the housing of hair dryer attachment 1, which may extend from the air inlet side 10 to the air outlet side 11 of hair dryer attachment 1. Here, the term "ring-like" may include, but is not limited to, regular or irregular annular shapes such as circles, ovals, squares, and the like. According to the design of the present disclosure, a first air 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 hole 18 and the second air hole 17.

The central tube structure 14 may be arranged in the centre of the space surrounded by the annular side wall 13. The central duct structure 14 is a tubular structure which may have a tubular wall 16 extending from the air inlet side 10 towards the air outlet side 11, as well as an air inlet 45 at the air inlet side 10 and an air outlet 46 at the air outlet side 11. In the state where the hair dryer attachment 1 is attached to the outlet 54 of the hair dryer main body 5, the air inlet 45 is adjacent to the center of the outlet net 55 of the hair dryer attachment 1 for receiving the air flow blown out from the center of the outlet net 55. As previously mentioned, the air stream blown out from the central position of the air outlet screen 55 can be cooler than the surrounding air stream, and therefore, the cooler air stream can enter the central tubular structure 14 from the air inlet 45. Further, the tubular wall 16 of the central tubular structure 14 may be provided with second air holes 17, the second air holes 17 being in air flow communication with the aforementioned first air holes 18. Thus, at least a portion of the air flow entering the center tube structure 14 may flow from the second air holes 17 to the first air holes 18.

To better direct the flow of the air from the second air vents 17 to the first air vents 18, in some embodiments, the outlet vent 46 of the central duct structure 14 on the air-out side 10 may be configured to be closed or semi-closed. Of course, in other embodiments it is also possible that the central duct structure 14 is completely open at the outlet opening 46 of the air-out side 10.

Further, the hair dryer attachment 1 can also comprise an air flow guiding structure 31, which can further guide the flow of the air flow from the second air aperture 17 to the first air aperture 18. In some embodiments, the airflow directing structure 31 may simply be one or more airflow directing plates, which may be disposed between the first and

second wind apertures

18, 17 and arranged to direct airflow from the second wind aperture 17 towards the first wind aperture 18. In still other embodiments, the airflow directing structure 31 may be a duct structure that may extend from the tubular wall 16 to the annular side wall 13 of the central tube structure 14, may surround the second air aperture 18 on one side of the tubular wall 16, and may surround the first air aperture 17 on one side of the annular side wall 13. The cross-section of the duct structure may be any cross-section shape as long as the duct structure is adapted to guide the air flow from the second air hole 17 toward the first air hole 18.

In some embodiments, the duct sidewall of the duct structure on the side facing the outlet vent 54 is closed. Here, the term "closed" means that the duct side wall does not have any opening or slit at the side of the air outlet 54, but is a complete and continuous closed shape. It will be readily appreciated that by such provision of the duct side wall, it is possible to avoid hot air blown from a radially outer region of the interior of the hair dryer body from leaking into the duct structure via the duct side wall, thereby avoiding unnecessarily raising the temperature of the air stream directed towards the air-stream-entraining substance. In a further embodiment, the entire duct side wall of the duct structure can be closed, which means that the duct structure itself is of annular, continuously closed shape, without any other openings or slits, except for the two end openings facing the second air aperture 17 and the second air aperture 18, which can further reduce the possibility of hot air blown from the radially outer region inside the hair dryer body leaking into the duct structure.

In some embodiments, the duct structure may taper from the air outlet side 11 towards the air inlet side 10. In this way, the duct structure can help to "split" the air flow from the hair dryer body 5 at the air inlet side 10, so as not to obstruct the flow of the air flow blown by the hair dryer body 5 and increase the wind resistance.

In still other embodiments, the hair dryer attachment 1 may further include a plurality of wind-guiding vanes 21, each wind-guiding vane 21 may extend from the tubular wall 16 to the annular side wall 13, and the plurality of wind-guiding vanes may be uniformly spaced between the tubular wall 16 and the annular side wall 13. In a further embodiment, the entirety of the plurality of wind guide blades 21 may form a spiral structure, so that spiral wind outlet may be realized. In a still further embodiment, two adjacent wind guiding blades 21 may form part of the duct structure. In this way, the airflow guide structure 31 can be more conveniently constructed.

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

The containment structure 15 may be positioned on and attached to the outside of the annular side wall 13 and adapted to contain the air-flow transportable material. In some embodiments, at least a portion of the housing structure of the receiving structure 15 can be formed as a unitary structure with the annular sidewall 13, which can help to improve the robustness of the hair dryer attachment. In still other embodiments, the receiving structure 15 may be removably attached to the annular sidewall 13, which allows both the receiving structure and the annular sidewall to be designed and manufactured more independently.

The containment structure 15 is arranged as an open structure that allows airflow communication with both the first air vents 18 above and the external environment, and allows airflow from the first air vents 18 to pass through the containment structure 15, thereby entraining the air-stream portable material into the external environment.

Here, the term "air-flow-transportable material" means any material from which a portion of the material can be carried away as an air flow passes therethrough. For example, such gas-flow portable substances may include volatile or non-volatile solid, gaseous and liquid substances, in particular solid and liquid substances. When the gas stream comprises a volatile material, the passage of the gas stream therethrough can accelerate the volatilization of the material, and when it comprises a non-volatile material, the gas stream can assist in the emission of the non-volatile material in the gas stream. As typical examples of the air-flow-transportable substance, it may include, for example, various fragrances, odorants, and hair conditioners. In the using process, the aromatic taste or smell from the aromatic and the odorant can diffuse in the surrounding environment under the driving of the air flow so as to meet the specific smell requirement of a user; the hair care molecules of the hair conditioner can be dispersed into the surrounding environment, particularly the hair of a user, so as to moisten the hair of the user or protect the hair of the user from being damaged.

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

As an example of the receiving structure 15 of an open structure, the receiving structure 15 (e.g., the outer receiving case 26 and/or the inner drawing member 25) may be provided with a first through hole 28 facing the first air 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 air-flow-transportable material may be placed on the air flow path between the first through hole 28 and the second through hole 27. In this way, the air flow from the first air hole 18 may pass through the first through hole 28, then through the containment structure 15, and into the external environment via the second through hole 27. Further, the receiving structure 15 may have other through holes besides the first through hole 28 and the second through hole 27, which may further facilitate the emission of the portable substance from the receiving structure 15 to the external environment.

It will be readily appreciated that with the above arrangement, the relatively low temperature air flow originating from the central region of the air outlet 54 of the hair dryer 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-entraining substance located in the containing structure 15 and the air flow passage defined by the first through hole 17, thereby achieving the emission of the air flow-entraining substance to the external environment. Since the air flow passing through the air flow portable substance is a relatively cool air flow blown out from the central area of the hair dryer, the air flow portable substance can be prevented from being emitted at an inappropriately high temperature, thereby preventing the performance degradation of the air flow portable substance itself.

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

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

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 invention is not limited to the disclosed embodiments. Other variations and combinations of the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed invention, from a study of the drawings, the disclosure, and the appended claims.

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 dependent claims does not indicate that a combination of these features cannot be used to advantage. The scope of protection of the present application covers any possible combination of features recited in the various embodiments or in the dependent claims, without departing from the spirit and scope of the application.

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

Claims

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

an annular side wall (13) extending from the air inlet side (10) towards the air outlet side (11), the annular side wall (13) being provided with first air holes (18);

a central duct structure (14) arranged in the centre of the space surrounded by the annular side wall (13) and having a tubular wall (16) extending from the air inlet side (10) towards the air outlet side (11), the tubular wall (16) being provided with second air apertures (17);

an air flow guiding structure (31) arranged between the first air hole (18) and the second air hole (17) for guiding the air flow 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-transportable substance, the containment structure (15) further being configured to be in air-flow communication with both the first air aperture (18) and an external environment to allow the air flow from the first air aperture (18) to pass through the containment structure (15) to entrain the air-flow-transportable substance into the external environment.

2. Hair dryer attachment (1) according to claim 1, characterized in that said air flow directing structure (31) is a duct structure defining an air flow passage from said second air aperture (17) to said first air aperture (18).

3. Hair dryer attachment (1) according to claim 2, characterized in that the side wall of said duct structure facing said air outlet opening (54) is closed.

4. Hair dryer attachment (1) according to claim 3, characterized in that said duct structure tapers from said air outlet side (11) to said air inlet side (10).

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

6. Hair dryer attachment (1) according to claim 5, characterized in that said duct structure also comprises: the first side plate (22) is located on the air outlet side (11), and the first side plate (22) spans between two adjacent air guide blades (21).

7. Hair dryer attachment (1) according to claim 6, characterized in that two adjacent air guiding vanes (21) are joined together at the air 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 shell (26) and an inner drawing part (25), said inner drawing part (25) being adapted to be removably inserted into said outer containing shell (26) and to store said air-flow-carrying substance.

9. Hair dryer attachment (1) according to any of claims 1-7, characterized in that said containing structure (15) has a first through hole (28) facing said first air hole (18), and a second through hole (27) facing the outside environment; the first through hole (28) and the second through hole (27) are opposite to each other, the air-flow-transportable substance being adapted to be positioned between the first through hole (28) and the second through hole (27).

10. Hair dryer attachment (1) according to any of the claims 1-7 characterized in that between said containing structure (15) and said annular side wall (13) an auxiliary channel is formed, 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 the outside environment in a state where the hair dryer attachment (1) is attached to the air outlet (54) of the hair dryer body (5).

11. Hair dryer attachment (1) according to any of claims 1-7, characterized in that said central tube structure (14) has an air inlet (45) at said air inlet side (10), an air outlet net (55) is arranged at the air outlet (54) of the hair dryer body (5),

in the state that the electric hair drier accessory (1) is attached to the air outlet (54) of the electric hair drier main body (5), the air inlet (45) is close to the center position of the air outlet net (55) and is used for receiving the air flow blown out from the center position of the air outlet net (55).

12. A hair dryer (100), characterized in that it comprises:

a hair dryer body (5); and

hair dryer attachment (1) according to any of claims 1-11.

13. Hair dryer (100) according to claim 12, characterized in that said hair dryer accessory (1) is adapted to be attached at the hair dryer body's (5) outlet mouth (54) in a spiral or snap-on manner.

14. Hair dryer (100) according to claim 12 or 13, characterized in that inside said hair dryer body (5) are provided electric heating wires, which are arranged in the radially outer region inside said hair dryer body (5), so that the temperature of the air flow coming from the central region of the hair dryer body (5) air outlet (54) is lower than the temperature of the air flow coming from the radially outer region inside said air outlet (54).