AIR-SUCTION NOZZLE FOR ELECTRIC HAIR DRIER

Abstract

Provided is an air-suction nozzle for an electric hair drier, including a nozzle body with a ventilation cavity, where one end of the nozzle body is provided with a closed end, and the other end thereof is provided with an air inlet communicated with the ventilation cavity; the nozzle body is formed by splicing a plurality of arc-shaped plates arranged around a central axis of the nozzle body, edges of two adjacent arc-shaped plates are spliced to form a splicing end surface, the splicing end surface is divided into a superimposed surface and a misaligned surface, and a plurality of fluid outlets are uniformly distributed on the misaligned surface. Edges of two adjacent arc-shaped plates are spliced to form a splicing end surface, the fluid outlet is formed on the misaligned surface of the splicing end surface, and the structure is easy to implement and convenient to manufacture.

Description

TECHNICAL FIELD

The present disclosure relates to the technical field of hairdressing appliances, and particularly relates to an air-suction nozzle for an electric hair drier.

BACKGROUND ART

Hair styling is one of the popular activities among people in modern times. Currently, curly hair styling is achieved by twining hair around a nozzle connected to an air outlet of a hair dryer and then keeping for a while. However, hair is usually blown away by the nozzle in the hair styling process. To solve this problem, hairdressing product designers have always been on the road of developing. For example, the Chinese patent invention CN204483372U discloses an attachment for a hand held appliance and also a hand held appliance, where the attachment includes a body part, and the body part is provided with a wall, a fluid inlet at an end portion of the wall, and a fluid outlet penetrating through the wall, where the fluid outlet includes at least one slot extending along the wall, and at least one slot is formed by overlapping a first end portion and a second end portion of the wall.

The technical solution has been protected by a patent family, with the patents AU2015233175B2, GB2526049B, IN433017B, JP5990839B2, KR102074285B1, RU2676348C2, SG11201607211UB and U.S. Ser. No. 11/071,365B2 granted to Dyson Technology LTD in many countries around the world for many years.

Similarly, a U.S. patent Ser. No. 11/044,979B2 of Dyson Technology LTD has also been protected by a patent family in many countries worldwide for many years, and the patent family includes the patents numbered AU2015233174B2, CN204483373U, DE602015075048T2, EP3119234B1, GB2524304B, IN432645B, JP5987256B2, KR102143436B1, KR102179911B1, RU2652925C1, SG11201607212XB and U.S. Ser. No. 11/044,979B2. In addition, Dyson Technology LTD has filed patent lawsuits in many countries around the world. Taking the patent U.S. Ser. No. 11/044,979B2 as an analysis object, its core technology is “wherein the outlet is at least partially defined by an external surface of a substantially contiguous wall of the attachment” from the claim 1 “1. An attachment for a hand held appliance comprising an inlet in a proximal first portion of the attachment; an outlet in a cylindrical second portion of the attachment; and a fluid flow path between the inlet and the outlet, wherein the outlet in the cylindrical second portion of the attachment comprises at least one slot extending continuously from the proximal first portion to a distal end of the attachment, wherein the outlet is at least partially defined by an external surface of a substantially contiguous wall of the attachment and is configured to direct fluid flow emitted from the outlet tangentially along and around the external surface of the substantially contiguous wall to form a circumferential fluid flow around the cylindrical second portion of the attachment that encourages hair to automatically wrap around the cylindrical second portion, wherein the external surface of the substantially contiguous wall is an outermost surface of the attachment along an entire length of the attachment from a beginning of the at least one slot to an end of the at least one slot, and wherein the distal end of the attachment is closed.”. In essence, the technical feature of the patent U.S. Ser. No. 11/044,979B2 is the same as that of the Chinese patent CN204483372U belonging to another patent family of Dyson Technology LTD (specifically, the part of “at least one slot is formed by overlapping a first end portion and a second end portion of the wall” in claim 1 of “1. An attachment for a hand held appliance, comprising a body part, and the body part is provided with a wall, a fluid inlet at an end portion of the wall, and a fluid outlet penetrating through the wall, wherein the fluid outlet includes at least one slot extending along the wall, and at least one slot is formed by overlapping a first end portion and a second end portion of the wall), that is both of them have the overlapped air outlets. It can be seen that the overlapped air outlet is an important technical feature for implementation of this type of products, and Dyson Technology LTD has claimed protection and monopoly of this technical feature in the form of obtaining the patent rights.

Breaking through the patent barriers set up by Dyson Technology LTD is an urgent problem to be solved.

SUMMARY

To solve the above problems, the present disclosure provides an air-suction nozzle for an electric hair drier.

To achieve the above objective, the present disclosure adopts the following technical solution:

• • an air-suction nozzle for an electric hair drier, including a nozzle body, where the nozzle body is a cylindrical structure provided with a ventilation cavity, one end of the nozzle body is provided with a closed end, and the other end thereof is provided with an air inlet communicated with the ventilation cavity; the nozzle body is formed by splicing or integrally molding a plurality of arc-shaped plates arranged around a central axis of the nozzle body, edges of two adjacent arc-shaped plates are spliced in a staggered manner to form a splicing end surface, and the splicing end surface is divided into a superimposed surface and a misaligned surface; at least one fluid outlet is uniformly distributed on the misaligned surface, two adjacent arc-shaped plates form cambered surfaces at the splicing end surface that are horizontally adjacent and vertically misaligned, and the vertically misaligned cambered surfaces are not overlapped.

Preferably, the arc-shaped plate includes a cambered surface, a first side vertical surface and a second side vertical surface, where the cambered surface is provided with a leading edge and a trailing edge relative to two side edges, the first side vertical surface is located at the leading edge, and the second side vertical surface is located at the trailing edge; and a plurality of guide plates are arranged on an inner surface of the cambered surface along a length direction of the arc-shaped plate, each of which is provided with a front end surface and a rear end surface, front end surfaces of two adjacent guide plates are connected to the first side vertical surface to form an air outlet channel, the rear end surface of the guide plate is flush with the second side vertical surface to form an air outlet end, when two adjacent arc-shaped plates are spliced, a part of the air outlet end is located on the superimposed surface and covered by the first side vertical surface, and a part of the air outlet end is located on the misaligned surface to form a fluid outlet.

Preferably, the first side vertical surface, the cambered surface and the second side vertical surface can be of an integrated structure or a split assembly structure and be sequentially connected to form an arc-shaped plate.

Preferably, a cross-sectional thickness of the guide plate gradually increases from the first side vertical surface to the second side vertical surface.

Preferably, the guide plate is provided with a windward surface, and the windward surface is an arc surface that is concavely curved towards the cambered surface.

Preferably, an acute angle α is formed between each of the guide plates and an axis line of the ventilation cavity.

Preferably, the ventilation cavity gradually shrinks from the air inlet to the closed end.

Preferably, two adjacent arc-shaped plates are connected through high-frequency welding or adhesive bonding to form a splicing surface.

Preferably, fluid flowing out along the fluid outlet flows along the cambered surface.

Preferably, the fluid outlet is elongated, and a height H of the fluid outlet ranges from 0.4 mm to 0.8 mm.

The present disclosure has the following beneficial effects: in the present disclosure, edges of two adjacent arc-shaped plates are spliced in a staggered manner to form a splicing end surface, the fluid outlet is formed on the misaligned surface of the splicing end surface, and although arc-shaped plates are not overlapped with each other, the present disclosure achieves the effect of air suction and hair twining, breaking through the above patent barriers set up by Dyson Technology LTD.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a structural diagram of the present disclosure.

FIG. 2 is an exploded view of the present disclosure.

FIG. 3 is a perspective view of a cross-sectional structure along an A-A section line of a nozzle body in FIG. 2.

FIG. 4 is a structural diagram of a single arc-shaped plate of the present disclosure.

FIG. 5 is an enlarged view of a part A in FIG. 4.

FIG. 6 is a schematic diagram of an arc-shaped plate of the present disclosure from a certain perspective.

FIG. 7 is a schematic diagram of an arc-shaped plate of the present disclosure from a certain perspective.

FIG. 8 is a schematic diagram of two arc-shaped plates misaligned but not spliced in the present disclosure.

FIG. 9 is a schematic diagram of two arc-shaped plates spliced in a staggered manner in the present disclosure.

FIG. 10 is a schematic diagram of FIG. 9 of the present disclosure from a certain perspective.

FIG. 11 is a schematic diagram of the present disclosure where diameters of an air inlet and a closed end of a ventilation cavity change slightly but an outer diameter of a nozzle body remains unchanged.

FIG. 12 is a schematic diagram of the present disclosure where diameters of an air inlet and a closed end of a ventilation cavity change significantly but an outer diameter of a nozzle body remains unchanged.

FIG. 13 is a schematic diagram of an air outlet channel formed by obliquely arranging two adjacent guide plates in the present disclosure.

FIG. 14 is a schematic diagram of two arc-shaped plates spliced by bonding in the present disclosure.

FIG. 15 is a schematic diagram of two arc-shaped plates spliced by using a hook and slot structure in the present disclosure.

FIG. 16 is an enlarged view of a part B in FIG. 1.

FIG. 17 is a schematic diagram of only two arc-shaped plates spliced in FIG. 15.

FIG. 18 is a front view of a cross-sectional structure and a fluid path along an A-A section line of the nozzle body in FIG. 2.

Reference numerals in the figures:

100. nozzle body; 200. closed end; 300. air inlet; 400. mounting convex ring; 410. mounting recess; 110. arc-shaped plate; 111. cambered surface; 112. first side vertical surface; 113. second side vertical surface; 114. slot; 115. hook; 116. superimposed surface 117. misaligned surface; 120. guide plate; 122. rear end surface; 123. windward surface; 130. air outlet channel; 131. air outlet end; 140. ventilation cavity; 500. end cover; and 600. fluid outlet.

DETAILED DESCRIPTION OF THE EMBODIMENTS

In order to make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in combination with the accompanying drawings in the embodiments of the present disclosure. Apparently, the embodiments described are merely some rather than all of the embodiments of the present disclosure. The assemblies in the embodiments of the present disclosure described and illustrated in the accompanying drawings usually can be arranged and designed according to various different configurations.

Therefore, the following detailed description of the embodiments of the present disclosure provided in the accompanying drawings is not intended to limit the scope of protection of claims of the present disclosure, but only to represent the selected embodiments of the present disclosure. Based on the embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present disclosure.

It should be noted that similar reference numerals and letters represent similar terms in the following accompanying drawings. Therefore, once defined in one accompanying drawing, a term is not needed to be further defined or explained in subsequent accompanying drawings.

In the description of the embodiments of the present disclosure, it should be noted that the terms such as “upper”, “lower”, “vertical”, “horizontal”, “inner”, “outer”, “front” and “rear” indicate azimuthal or positional relations based on those shown in the drawings, or of common placement when the product of the present disclosure is used, only for ease of description of the present disclosure and for simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation and be constructed and operative in a particular orientation, and thus may not be construed as a limitation on the present disclosure. Moreover, the terms such as “first” and “second” are used merely to distinguish between descriptions and may not be construed as indication or implication of relative importance.

Further, the terms such as “horizontal” and “vertical” do not necessarily mean that the components are absolutely horizontal, but can be slightly inclined. For example, compared to “vertical”, “horizontal” only means that a structure is more horizontal in terms of direction, but does not mean that the structure must be completely horizontal, but can be slightly inclined.

In the description of the embodiments of the present disclosure, it should be further noted that, unless otherwise clearly specified, meanings of terms “arrange”, “mount” and “connect” should be understood in a board sense. For example, the connection may be a fixed connection, a detachable connection, an integral connection; may be a mechanical connection or an electrical connection; may be a direct connection or an indirect connection by using an intermediate medium; or may be intercommunication between two components. For those of ordinary skill in the art, the specific meanings of the terms described above in the present disclosure may be interpreted according to specific circumstances.

With reference to FIGS. 1-18, the present disclosure relates to an air-suction nozzle for an electric hair drier, including a nozzle body 100, where the nozzle body 100 is a cylindrical structure provided with a ventilation cavity 140, one end of the nozzle body 100 is provided with a closed end 200, the closed end 200 is provided with an end cover 500, and the other end thereof is provided with an air inlet 300 communicated with the ventilation cavity 140. In the embodiments of the present disclosure, the air inlet 300 is configured for inserting an outlet pipe of the electric hair drier (not shown in the figure), so that when using an electric hair dryer, wind can be blown into the ventilation cavity 140 through the air outlet pipe. In the embodiments of the present disclosure, the nozzle body 100 is provided with a mounting convex ring 400 at the air inlet 300, and a mounting recess 410 is configured for inserting the air outlet pipe of the electric hair drier, so that the air outlet pipe of the electric hair dryer can be inserted into the mounting recess 410, and abuts against a housing of the electric hair dryer through a side wall of the mounting recess 410.

In the embodiments of the present disclosure, the nozzle body 100 includes two or more arc-shaped plates 110 arranged around a central axis of the nozzle body 100, and the arc-shaped plate 110 includes a cambered surface 111, a first side vertical surface 112 and a second side vertical surface 113, where the cambered surface 111 is provided with a leading edge and a trailing edge relative to two side edges, the leading edge and the trailing edge extend along a length direction of the cambered surface 111, the first side vertical surface 112 is located at the leading edge, and the second side vertical surface 113 is located at the trailing edge; and the first side vertical surface 112, the cambered surface 111 and the second side vertical surface 113 can be of an integrated structure or a split assembly structure and be sequentially connected to form an arc-shaped plate 110, and an outer contour of the cambered surface 111 on a cross section of the arc-shaped plate 110 is arc-shaped, as shown in FIG. 6.

As an improved solution of the present disclosure, a plurality of plate-like guide plates 120 are arranged on an inner surface of the arc-shaped plate 110 along a length direction of the arc-shaped plate 110, and the guide plate 120 is provided with a front end surface (not shown in the figure, one surface opposite to the rear end surface) and a rear end surface 122, where the front end surface of the guide plate 120 abuts against the first side vertical surface 112, and the rear end surface 122 of the guide plate 120 is flush with the second side vertical surface 113; two adjacent guide plates 120, the first side vertical surface 112 and the second side vertical surface 113 are enclosed to form an air outlet channel 130 provided with an air outlet end 131, and the rear end surfaces 122 of the two adjacent guide plates 120 and the second side vertical surface 113 are enclosed to form the air outlet end 131, that is, the air outlet channel 130 is a channel defined by the two adjacent guide plates 120 and the first side vertical surface 112, and the air outlet end 131 is an outlet defined by the rear end surfaces 122 of the two adjacent guide plates 120 and a lower edge of the second side vertical surface 113; the air outlet channel 130 is communicated with the ventilation cavity 140, so that the fluid from the ventilation cavity 140 easily enters the air outlet channel 130 to facilitate the preparation for acceleration of the fluid in the air outlet channel 130; and when air enters the air outlet channel 130 from the ventilation cavity 140, the fluid flows from the leading edge of the cambered surface 111 to the trailing edge of the same, the incoming fluid flows and accelerates in the air outlet channel 130 formed by two adjacent guide plates 120, and the rapidly flowing fluid is ejected after flowing through the air outlet end 131.

As an improved solution of the present disclosure, a cross-sectional thickness of the guide plate 120 gradually increases from the leading edge to the trailing edge, as shown in FIG. 6, that is, the cross section of the rear end surface 122 of the guide plate 120 is thicker, which can improve the stability of connection between two adjacent arc-shaped plates 110, so that a part of the air outlet end 131 is located above the first side vertical surface 112 of the previous arc-shaped plate 110, the fluid ejected from the air outlet end 131 is tangent to the cambered surface 111 of the front arc-shaped plate 110, and the fluid flowing out along the fluid outlet 600 flows along the cambered surface 111, as shown in FIG. 18. As shown in FIGS. 9, 10 and 18, the number of arc-shaped plates 110 in this technical solution can be even or odd. In this embodiment, eight arc-shaped plates 110 are spliced in a staggered manner to form a cylindrical structure, edges of two adjacent arc-shaped plates 110 are spliced in a staggered manner to form a splicing end surface, two adjacent arc-shaped plates 110 form cambered surfaces 111 at the splicing end surface that are horizontally adjacent and vertically misaligned, and the vertically misaligned cambered surfaces 111 are not overlapped, that is, the cambered surface 111 of the front arc-shaped plate 110 and the cambered surface 111 of the rear arc-shaped plate 110 form the cambered surfaces that are horizontally adjacent and vertically misaligned, the splicing end surface is divided into a superimposed surface 116 and a misaligned surface 117, the second side vertical surface 113 of the rear arc-shaped plate 110 and the first side vertical surface 112 of the front arc-shaped plate 110 are spliced in a staggered manner, a part of the second side vertical surface 113 is covered by the first side vertical surface 112, and a part of the second side vertical surface 113 protrudes from the cambered surface 111 of the front arc-shaped plate 110, so that a part of the air outlet end 131 located on the second side vertical surface 113 forms the fluid outlet 600 on the misaligned surface 117.

In this embodiment, eight misaligned surfaces are formed on a circumferential surface of the nozzle body 100, and each splicing end surface radially surrounds the nozzle body 100 and extends towards the closed end 200, so that the fluid outlet 600 located on the splicing end surface radially surrounds the nozzle body 100, and in use, hair is twined around the nozzle body 100, and the air or fluid discharged from the fluid outlet 600 is used to dry and shape the hair into curly or wavy hair. Due to air flow, hair is automatically twined around the surface of the nozzle body 100.

As an improved solution of the present disclosure, each of the guide plates 120 is provided with a windward surface 123, as shown in FIG. 5, the windward surface 123 is an arc surface that is concavely curved towards the cambered surface 111, which plays a good guide effect, and further, the arc-shaped plate 110 and the guide plate 120 with a raised inner surface can form an integrated structure or a split assembly structure.

As an improved solution of the present disclosure, the ventilation cavity 140 gradually shrinks from the air inlet 300 to the closed end 200, as shown in FIGS. 11 and 12. In this case, an outer diameter of the nozzle body 100 is consistent from the air inlet 300 to the closed end 200, while the ventilation cavity 140 gradually shrinks with changes in the cross section of the guide plate 120. Specifically, the cross section of the guide plate 120 arranged on the arc-shaped plate 110 is gradually enlarged from the air inlet 300 to the closed end 200, that is, the cross section of the guide plate 120 near the closed end 200 is larger than that of the guide plate 120 near the air inlet 300, so that the ventilation cavity 140 gradually shrinks from the air inlet 300 to the closed end 200. When pore diameters of the ventilation cavity 140 at the closed end 200 and the air inlet 300 are significantly different, as shown in FIG. 12, this structure is capable to divert the fluid inside the ventilation cavity 140, that is, the volume of fluid flow at the fluid outlet 600 near the closed end 200 is reduced, and the volume of fluid flow at the fluid outlet 600 away from the closed end 200 is increased, that is, the volume of fluid flow at the fluid outlet 600 of the air inlet 300 is greater than that at the fluid outlet 600 of the closed end 200. In this case, the fluid suction generated is uniform and the sound is relatively pure. As shown in FIG. 16, a height of the fluid outlet 600 is H, the H ranges from 0.4 mm to 0.8 mm. When H is 0.4 mm and the pore diameters of the ventilation cavity 140 at both ends are significantly different, the fluid suction is greater and the sound is relatively pure.

As an improved solution of the present disclosure, an acute angle α is formed between each of the guide plates 120 and an axis line of the ventilation cavity 140 (not indicated in the figure), as shown in FIG. 13, so that the air outlet channel 130 in a spiral shape as a whole, a spiral shape of fluid is formed after air flows through the air outlet channel 130, and a vortex shape of uniform fluid is further formed in a small range, which helps to drive flow of more surrounding fluid, and improves the guide efficiency of the nozzle, so that the fluid ejected through the fluid outlet 600 can spiral around the surface of the nozzle body 100.

In this embodiment, for the nozzle body 100, all the arc-shaped plates 110 in the entire structure of the nozzle body 100 are the same in structure and size, so that molds of the same size can be used to manufacture arc-shaped plates 110, thus simplifying the design and manufacturing of molds and greatly saving costs.

In this embodiment, the splicing end surfaces of two adjacent arc-shaped plates 110 (the surface of connection between the first side vertical surface 112 of the front arc-shaped plate 110 and the second side vertical surface 113 of the rear arc-shaped plate 110) are connected through high-frequency welding or adhesive bonding. Space magnetic field A high-frequency welding machine is used for high-frequency welding, and the welding and fusion welding principles of high-frequency welding are different from those of ultrasonic welding, where the high-frequency welding is a process that welding and fusion welding are achieved in an environment of high temperature caused by intense collisions between molecules inside a material in a high-frequency electromagnetic field, while ultrasonic welding is a process that welding and fusion welding are achieved by using a large amount of heat generated by friction. Adhesive bonding belongs to the prior art, and will not be repeated here.

As an improved solution of the present disclosure, the splicing end surfaces of two adjacent arc-shaped plates 110 are spliced through a structure composed of a hook 115 and a slot 114, a plurality of hooks 115 are arranged on the second side vertical surface, and the hooks 115 can be arranged on the rear end surface 122 of the guide plate 120 and near the bottom end of the rear end surface 122 of the guide plate 120; and a plurality of slots 114 are arranged on the first side vertical surface 112 at a corresponding position of the hook 115, and when adjacent arc-shaped plates 110 are spliced, a combination of the hook 115 and the slot 114 facilitates and ensures a more stable splicing of the adjacent arc-shaped plates 110 after the splicing.

As an improved solution of the present disclosure, the nozzle body 100 is integrated by assembling a plurality of arc-shaped plates 110, and the assembled nozzle will expand and contract due to the hot air from the hair dryer, so that the nozzle and components will be loosened over time, thus reducing the service life. In this embodiment, the nozzle body 100 can also be of an integrated structure (molded as a whole), which replaces the assembled nozzle, and can avoid the problem that the nozzle of an assembly structure is loosened due to thermal expansion and contraction, thereby prolonging the service life of the nozzle.

The fluid in this embodiment usually is air, but may be a different combination of one or more types of gases, and may include an additive. Such an additive includes, but is not limited to a hair styling agent and an essence.

The above implementation modes merely describe the preferred embodiments of the present disclosure, and are not intended to limit the scope of the present disclosure. Without departing from the design spirit of the present disclosure, various modifications and improvements of the technical solution of the present disclosure made by those of ordinary skill in the art should fall within the scope of protection determined in the claims of the present disclosure.

Claims

1. An air-suction nozzle for an electric hair drier, comprising a nozzle body, wherein the nozzle body is a cylindrical structure provided with a ventilation cavity, one end of the nozzle body is provided with a closed end, and the other end thereof is provided with an air inlet communicated with the ventilation cavity; the nozzle body is formed by splicing or integrally molding a plurality of arc-shaped plates arranged around a central axis of the nozzle body, edges of two adjacent arc-shaped plates are spliced in a staggered manner to form a splicing end surface, and the splicing end surface is divided into a superimposed surface and a misaligned surface; and at least one fluid outlet is uniformly distributed on the misaligned surface, two adjacent arc-shaped plates form cambered surfaces at the splicing end surface that are horizontally adjacent and vertically misaligned, the vertically misaligned cambered surfaces are not overlapped, and due to air flow, hair is automatically twined around the surface of the nozzle body.

2. The air-suction nozzle for an electric hair drier according to claim 1, wherein the arc-shaped plate comprises a cambered surface, a first side vertical surface and a second side vertical surface, wherein the cambered surface is provided with a leading edge and a trailing edge relative to two side edges, the first side vertical surface is located at the leading edge, and the second side vertical surface is located at the trailing edge; and a plurality of guide plates are arranged on an inner surface of the cambered surface along a length direction of the arc-shaped plate, each of which is provided with a front end surface and a rear end surface, front end surfaces of two adjacent guide plates are connected to the first side vertical surface to form an air outlet channel, the rear end surface of the guide plate is flush with the second side vertical surface to form an air outlet end, when two adjacent arc-shaped plates are spliced, a part of the air outlet end is located on the superimposed surface and covered by the first side vertical surface, and a part of the air outlet end is located on the misaligned surface to form a fluid outlet.

3. The air-suction nozzle for an electric hair drier according to claim 2, wherein the first side vertical surface, the cambered surface and the second side vertical surface can be of an integrated structure or a split assembly structure and be sequentially connected to form an arc-shaped plate.

4. The air-suction nozzle for an electric hair drier according to claim 2, wherein a cross-sectional thickness of the guide plate gradually increases from the first side vertical surface to the second side vertical surface.

5. The air-suction nozzle for an electric hair drier according to claim 2, wherein the guide plate is provided with a windward surface, and the windward surface is an arc surface that is concavely curved towards the cambered surface.

6. The air-suction nozzle for an electric hair drier according to claim 1, wherein an acute angle α is formed between each of the guide plates and an axis line of the ventilation cavity.

7. The air-suction nozzle for an electric hair drier according to claim 1, wherein the ventilation cavity gradually shrinks from the air inlet to the closed end.

8. The air-suction nozzle for an electric hair drier according to claim 1, wherein two adjacent arc-shaped plates are connected through high-frequency welding or adhesive bonding to form a splicing surface.

9. The air-suction nozzle for an electric hair drier according to claim 2, wherein fluid flowing out along the fluid outlet flows along the cambered surface.

10. The air-suction nozzle for an electric hair drier according to claim 2, wherein the fluid outlet is elongated, and a height H of the fluid outlet ranges from 0.4 mm to 0.8 mm.