Air deflector attachment and high speed hair dryer therefor

Abstract

An air guide accessory and a high-speed hair dryer thereof, the air guide accessory is used for assembling at an air outlet of a hair dryer shell, comprising a guide inner grid, which is vertically elliptical as a whole, is composed of an inner closed area, a middle air outlet opening area, an outer arc closed area and an outer edge mounting area, and is provided with a plurality of shunt ribs, which are uniformly distributed in the middle air outlet area and separate the middle air outlet area into a plurality of independent and uniform air outlet holes; a guide frame, which is vertically elliptical as a whole, is composed of an arc-shaped guide inner frame and an assembled outer frame assembly, the inner end face of the assembled outer frame assembly abuts against the guide inner grid, and the assembled outer frame is also clamped at the air outlet of the hair dryer shell. The air outlet cross-sectional area is further reduced from the size of the air outlet to the size of the middle air outlet opening area, so as to shunt, guide and pressurize the air outlet, so that the air outlet is more powerful and beneficial, and the flow direction is more concentrated and stable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hair styling appliances, and in particular to an air flow guide attachment and a high-speed hair dryer. BACKGROUND

[0002] Electric hair dryers are commonly used household appliances, mainly used for drying and shaping hair, and can also be used for local drying, heating and physiotherapy in laboratories, physiotherapy rooms and industrial production, graphic design, etc. The application is very wide. In particular, hot hair dryers are used for various purposes, such as drying materials (such as paint and hair), and cleaning or peeling the surface layer.

[0003] Generally, an electric motor and a fan are provided, which draw fluid into the body; the fluid can be heated before leaving the body. The electric motor is vulnerable to damage by foreign matter (such as dirt and hair), so a filter is usually provided at the fluid inlet end of the hair dryer.

[0004] An air outlet attachment is usually provided with a nozzle that can be connected to or detached from the appliance, and changes the shape and speed of the fluid flow discharged from the appliance. Such a nozzle can be used to concentrate the outflow of the appliance or diffuse the outflow according to the user's needs at the moment.

[0005] Prior art example 1, see patent document CN104337192B, discloses an attachment for a hand-held appliance, the attachment having a first end portion for connection to the appliance, and a second end portion, a first wall extending from the first end portion towards the second end portion and defining a fluid flow path through the attachment, a second wall extending from the second end portion towards the first end portion around the first wall and defining a second fluid flow path extending between the first wall and the second wall. The first end portion of the appliance can be generally annular. The fluid flow path can have a fluid inlet which is generally annular at the first end portion. The fluid inlet can be defined by the first wall and an inner wall extending around and at least partially along the first wall. The inner wall can be generally equidistant from the first wall around the fluid inlet. A hair care appliance comprising such an attachment is also disclosed. However, the above product scheme provided by example 1 also has certain defects in actual application. First, the air outlet duct is lengthened, so the loss of air volume will increase; second, the flow channel in the attachment has multiple bends, which hinders the flow of air, thereby reducing the air pressure of the air outlet; third, the size of the attachment is large and the shape is conspicuous, which protrudes significantly from the body of the hair dryer (hand-held appliance) after assembly, so it is not convenient to store and carry.

[0006] The prior art example 2, refer to patent document CN213604937U, discloses an electric hair dryer air duct structure, including a cylindrical air duct shell and a circular arc flow guide grid, the inside of the cylindrical air duct shell is provided with a vertical air cavity, the bottom of the cylindrical air duct shell is provided with an air inlet communicated with the vertical air cavity, the sidewall of the cylindrical air duct shell is provided with a horizontal air outlet communicated with the vertical air cavity, the vertical air cavity and the horizontal air outlet are connected by a circular arc transition, one end of the circular arc flow guide grid is installed on the inner wall of the vertical air cavity, the other end of the circular arc flow guide grid is installed on the inner wall of the horizontal air outlet, the vertical air in the vertical air cavity is adjusted to the horizontal air discharged from the horizontal air outlet by the circular arc flow guide grid. The electric hair dryer air duct structure of the application has the advantages of small size, high wind speed, large air volume and moderate air outlet angle in addition to the structure and function of similar products on the market. The product scheme provided in example 2 also has certain defects in actual application, although the flow guide grid is combined with the body more naturally and harmoniously, but the flow guide grid does not have an actual and efficient flow guide structure, resulting in weak air pressure and uncollected airflow; the structure of the bifurcated flow guide plate will form an air outlet obstruction and cause turbulent flow, and the interaction of the two will significantly weaken the air outlet force. SUMMARY

[0007] In order to overcome the above-mentioned deficiencies of the prior art, the present application provides an air flow guide accessory and a high-speed hair dryer.

[0008] The technical scheme for solving the technical problems of the present application is: an air flow guide accessory for assembling at the air outlet of a hair dryer shell, comprising:

[0009] A flow guide inner grid, which is vertically elliptical as a whole, is composed of an internal closed area, a middle air outlet opening area, an external arc closed area, and an outer edge mounting area, and a plurality of shunt ribs are provided between the external arc closed area and the internal closed area, which are evenly distributed in the middle air outlet area and separate the middle air outlet area into a plurality of independent and uniform air outlet holes.

[0010] A flow guide frame, which is vertically elliptical as a whole, is composed of an arc-shaped flow guide inner frame and an assembled outer frame assembly, the inner end face of the assembled outer frame assembly abuts against the flow guide inner grid, and the assembled outer frame is also clamped at the air outlet of the hair dryer shell.

[0011] Further optimization of the above technical scheme is that the internal closed area is inwardly convex to form a wind-breaking shunt area, the transverse section of the wind-breaking shunt area is triangular, and each corner of the wind-breaking shunt area is transitioned by a circular arc corner.

[0012] Further, the hair dryer shell comprises an inner shell, an outer shell sleeved on the inner shell, and a flow guide shell arranged in the air duct, one end of the flow guide shell being connected with the air outlet;

[0013] The flow guide shell is provided with a first mounting step, and the outer edge mounting area of the flow guide inner grid abuts against the first mounting step;

[0014] The first mounting step is provided with a plurality of fixing holes, and the shunt rib is at least partially clamped in the fixing hole.

[0015] Further, the first mounting step is further provided with a plurality of positioning blocks protruding outward, and the fixing hole is arranged in the positioning block;

[0016] Further, the outer edge mounting area of the flow guide inner grid is provided with a positioning groove, the positioning block is inserted into the positioning groove, and the shunt rib, the fixing hole and the positioning groove are arranged along the same linear direction.

[0017] Further, the assembly outer frame assembly comprises an outer frame base body, a positioning column protruding rearward on the outer frame base body, and an insertion strip protruding outward on the outer frame base body;

[0018] The outer arc-shaped closed area and the outer edge mounting area form a second mounting step, and the outer frame base body abuts against the flow guide inner grid;

[0019] The air outlet is provided with an insertion slot on the circumferential side, the insertion strip is inserted into the insertion slot, and the insertion strip is provided with a plurality of notch slots;

[0020] The flow guide shell is provided with a positioning hole, and the positioning column is inserted into the positioning hole.

[0021] Further, the flow guide shell has a lower opening, a front opening, and an integrated cavity communicating the lower opening and the front opening, the integrated cavity has an annularly contracted arc surface and is gradually reduced from the lower end.

[0022] Further, the lower end of the flow guide shell is further provided with a heat insulation shell, and the heat insulation shell is used for assembling a heating assembly;

[0023] The flow guide shell has a groove, the heat insulation shell is at least partially inserted into the flow guide shell through the lower opening, and is attached to the groove, so that the flow guide shell and the heat insulation shell form a flat seam connection.

[0024] Preferably, the heat-insulating shell is made of high-temperature resistant material, and the air guide shell is made of plastic.

[0025] Preferably, the middle air outlet area, the outer arc-shaped closed area and the arc-shaped air guide inner frame are arranged outward in stages.

[0026] The application also provides a high-speed hair dryer, which comprises:

[0027] a straight-cylindrical hair dryer shell having an air inlet and an air outlet, a wind channel being formed in the hair dryer shell and being in communication with the air inlet and the air outlet respectively, and a motor fan assembly and a heating assembly being arranged in the wind channel; and

[0028] an air guide accessory, which is detachably connected to the hair dryer shell.

[0029] The application has the following advantages:

[0030] I. The inner closed area and the outer arc-shaped closed area are both solid, so that no air is discharged from the areas involved, and air flow is only discharged outward from the middle air outlet area. Thus, the air outlet cross-sectional area is further reduced from the size of the air outlet to the size of the middle air outlet area, so that the air outlet is divided, guided and pressurized, and the air flow is more powerful, concentrated and stable.

[0031] II. The arrangement of the flow dividing ribs divides the middle air outlet area into multiple independent uniform air outlet holes, so that the air outlet at each position is more balanced. In addition, the originally unified and communicated middle air outlet area is bifurcated, which can effectively reduce turbulence and noise.

[0032] III. The air guide inner grid and the air guide frame are both vertically elliptical, which is the same as the direction of the wind channel of the existing high-speed hair dryer, so that the air flow is reduced and the air resistance is reduced, so that the air outlet is more powerful.

[0033] IV. The air guide frame and the air guide inner grid adopt a split structure, the air guide frame fixes the air guide inner grid on the hair dryer shell after assembly, which is small in size and unobtrusive in structure, and the modeling is harmonious and natural, so that the hair dryer shell has little change before and after the air guide accessory is assembled, which is convenient for carrying and storing. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a comparison schematic view of the air guide accessory before and after the hair dryer shell is assembled.

[0035] Figure 2 is an assembly schematic view of the air guide accessory, the air guide shell and the heat-insulating shell.

[0036] Figure 3 is an exploded view of the air guide accessory and the air guide shell.

[0037] Figure 4 These are cross-sectional views and enlarged schematic diagrams of the airflow guide accessories, airflow guide housing, and heat insulation housing.

[0038] Figure 5 This is a front view of the air guide accessory and the air guide housing.

[0039] Figure 6 yes Figure 5 Cross-sectional views in the BB and CC directions.

[0040] Figure 7 yes Figure 5 Cross-sectional views in the DD and EE directions.

[0041] Figure 8 This is a comparative diagram of the front and back views of the inner airflow guide grille.

[0042] Figure 9 This is a comparative diagram of the forward and reverse directions of the guide frame.

[0043] Figure 10 This is a schematic diagram of the lower side of the flow guide shell.

[0044] Figure 11 This is a cross-sectional view of the inner airflow guide grille.

[0045] Figure 12 This is a centered sectional view of the overall structure of a high-speed hair dryer.

[0046] In the diagram: 1. Airflow guide accessory; 101. Inner airflow grille; 101a. Internal enclosed area; 1012. Airflow splitting area; 1013. Rounded corner; 101b. Central air outlet area; 1011b. Equal flow outlet; 101c. External arc-shaped enclosed area; 101d. Outer edge mounting area; 1011d. Positioning groove; 101e. Flow splitting rib; 102. Airflow guide frame; 102a. Arc-shaped inner airflow guide frame; 102b. Assembly outer frame assembly; 1021b. Outer frame base; 1022b. Positioning post; 1023b. Insert strip; 1024b. Notch; 10 2c. Second mounting step; 2. Hair dryer housing; 201. Air inlet; 202. Air outlet; 203. Motor fan assembly; 204. Heating assembly; 205a. Inner housing; 2051a. Slot; 205b. Outer housing; 205c. Air guide housing; 2051c. First mounting step; 2052c. Fixing hole; 2053c. Positioning block; 2054c. Positioning hole; 206a. Lower opening; 206b. Front opening; 206c. Integrated cavity; 206d. Annular contraction arc surface; 206e. Groove; 207. Heat insulation housing; 208. Flat seam connection. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] Example 1

[0049] Reference Figures 1-11 An air guide accessory 1, for mounting at the exhaust port 202 of a hair dryer housing 2, includes:

[0050] The inner airflow grille 101 is vertically elliptical in shape and consists of an inner closed area 101a, a central air outlet area 101b, an outer arc-shaped closed area 101c, and an outer edge mounting area 101d. Several diversion ribs 101e are provided between the outer arc-shaped closed area 101c and the inner closed area 101a. The diversion ribs 101e are evenly distributed in the central air outlet area and divide the central air outlet area into multiple independent uniform airflow outlet holes 1011b.

[0051] The flow guide frame 102 is vertically elliptical in shape and consists of an arc-shaped inner flow guide frame 102a and an outer frame assembly 102b. The inner end face of the outer frame assembly 102b abuts against the inner flow guide grille 101, and the outer frame assembly is also snapped into the exhaust port 202 of the blower housing 2.

[0052] The above content is the basic structural solution of the present invention, which provides an air guiding accessory 1, which can be installed at the exhaust port 202 to guide and divert the airflow at the exhaust port 202, so as to make the air outlet effect better.

[0053] After installation, this invention has the following effects on airflow: First, both the internal enclosed area 101a and the external arc-shaped enclosed area 101c are solid, so no airflow occurs in these areas; airflow only exits from the central air outlet area 101b. Second, the diverting ribs 101e divide the central air outlet area 101b into multiple independent equal-flow air outlet holes 1011b, making the airflow more balanced across different locations. Furthermore, branching the originally uniform and interconnected central air outlet area 101b effectively reduces turbulence. The design features several advantages: First, it reduces noise during use. Second, both the inner airflow grille 101 and the airflow frame 102 are vertically elliptical, aligning with the airflow direction of existing high-speed hair dryers. This reduces turning and wind resistance, resulting in a stronger and more powerful airflow. Third, the airflow frame 102 and the inner airflow grille 101 are separate units. After assembly, the inner airflow grille 101 is fixed to the hair dryer housing 2. The design is small, unobtrusive, and harmonious, ensuring that the hair dryer housing 2 remains almost unchanged before and after the airflow accessory 1 is installed, facilitating portability and storage.

[0054] Preferably, the central air outlet opening region 101b, the outer arc-shaped closed region 101c, and the arc-shaped guide inner frame 102a are arranged outwards in stages. Thus, as the gas flows outwards from the inside, it expands outwards by a certain area after flowing a certain distance, achieving a stronger guiding effect. More specifically, assuming the unit area of ​​the central air outlet opening region 101b is S1, the unit area of ​​the outer arc-shaped closed region 101c is S2, and the unit area of ​​the arc-shaped guide inner frame 102a is S3, the cross-sectional area of ​​the gas is S1 at the beginning of the air outlet; S1+S2 in the middle section; and S1+S2+S3 in the middle section, meaning that the gas can be orderly guided and expanded during air outlet operation, achieving a larger air outlet area in the narrow and long outlet.

[0055] Example 2

[0056] Based on the structure of Embodiment 1, this embodiment has undergone further structural optimization, specifically as follows: (Refer to...) Figure 11The internal enclosed region 101a protrudes inward to form an air-breaking and diverting region 1012, the transverse cross-section of which is triangular. Through the triangular arrangement of the air-breaking and diverting region 1012, its cross-sectional area gradually increases from back to front, with a sharper rear end that acts as an air-breaking element, thus dividing a stream of air into upper and lower streams. This diverts the airflow away from the inner internal enclosed region 101a, directing more airflow to the outer central air outlet region 101b for outward discharge, and increasing air pressure to accelerate the subsequent airflow discharge. Furthermore, each corner of the air-breaking and diverting region 1012 uses rounded corners 1013 for transition, avoiding right-angle transitions to reduce wind resistance and ensure smoother gas flow.

[0057] Example 3

[0058] This embodiment provides a preferred structural composition of a hair dryer housing 2, specifically: the hair dryer housing 2 includes an inner housing 205a, an outer housing 205b sleeved on the inner housing 205a, and a guide housing 205c disposed in the air duct, one end of the guide housing 205c being connected to the exhaust port 202. The three-housing structure of the inner housing 205a, outer housing 205b, and guide housing 205c has two advantages: first, it reduces gaps, providing a more airtight housing structure to reduce airflow loss; second, the guide housing 205c can pressurize and concentrate the airflow, increasing the air velocity and clarifying the airflow direction.

[0059] Based on the composition of the hair dryer housing 2 described above, this embodiment further explains the mounting structure, referring to... Figures 3-10 Specifically:

[0060] 1. Assembly structure between the flow guide housing 205c and the flow guide grille: The flow guide housing 205c is provided with a first mounting step 2051c, and the outer edge mounting area 101d of the inner flow guide grille 101 abuts against the first mounting step 2051c to form a contact connection and mutual restraint.

[0061] The first mounting step 2051c has several fixing holes 2052c, and the diverting ribs 101e are at least partially engaged in the fixing holes 2052c. The first mounting step 2051c also has several outwardly protruding positioning blocks 2053c, with the fixing holes 2052c formed in the positioning blocks 2053c. The outer edge mounting area 101d of the inner flow guide grille 101 has a positioning groove 1011d, and the positioning blocks 2053c are inserted into the positioning groove 1011d. The combination of the diverting ribs 101e and the fixing holes 2052c is a convex-concave positioning fit; the combination of the positioning blocks 2053c and the fixing holes 2052c is a concave-convex positioning fit. Both are implemented simultaneously to ensure a more reliable positioning connection between the inner flow guide grille 101 and the flow guide housing 205c.

[0062] Preferably, the diversion ribs 101e, fixing holes 2052c and positioning grooves 1011d are arranged in the same straight line direction, which plays a complementary role in structural strength, making the inner grid 101 more stable in shape and less prone to deformation, thereby ensuring reliability during use.

[0063] II. Assembly Structure between the Guide Frame 102 and the Guide Housing 205c: First, the assembly outer frame assembly 102b includes an outer frame base 1021b, a positioning post 1022b protruding rearward from the outer frame base 1021b, and an insert 1023b protruding outward from the outer frame base 1021b. A second mounting step 102c is formed between the outer arc-shaped closed area 101c and the outer edge mounting area 101d. The outer frame base 1021b abuts against the inner guide grille 101, forming a contact connection and mutually limiting the position.

[0064] The exhaust vent 202 has a slot 2051a on its periphery. The insert 1023b is inserted into the slot 2051a to form a plug-in fit, connecting and fixing the guide frame 102 and the guide housing 205c. Additionally, the guide housing 205c has a positioning hole 2054c. The positioning post 1022b is inserted into the positioning hole 2054c to connect the guide housing 205c and the guide frame 102, and to more stably limit the inner guide grille 101 between them.

[0065] The insert 1023b has several notches 1024b. The guide frame 102 is generally made of plastic. Under the premise that the dimensions of the insert 1023b meet the connection strength requirements, the notches 1024b provide space for deformation of the insert 1023b during assembly and relieve stress, preventing the guide frame 102 from cracking and being damaged when squeezed. Furthermore, the presence of the notches 1024b is also beneficial to the injection molding of the guide frame 102, which can better relieve the stress inside the mold, so as to ensure that the guide frame 102 has better product dimensional accuracy during injection molding, and at the same time makes demolding smoother.

[0066] The assembly sequence is as follows: first, assemble the inner guide grille 101 with the guide housing 205c and place it into the air duct. Then, install the guide frame 102. When installing the guide frame 102, it is necessary to accurately align it so that it can connect and cooperate with the guide housing 205c, the inner guide grille 101, and the exhaust port 202 (the inner housing 205a and / or outer housing 205b in the blower housing 2) to achieve assembly.

[0067] Example 4

[0068] Based on Embodiment 3, this embodiment provides a preferred flow guide shell 205c structural scheme, specifically as follows: (Refer to...) Figure 10 The flow guide housing 205c has a lower opening 206a, a front opening 206b, and an integral cavity 206c connecting the lower opening 206a and the front opening 206b. The integral cavity 206c has an annular contracting arc surface 206d that gradually tapers from bottom to top. (Refer to...) Figures 7-8 The design of the airflow guide housing 205c, along with the features of an integrated cavity 206c and an annular contraction arc surface 206d, enables it to effectively concentrate, guide, and pressurize airflow, reducing airflow and velocity losses and resulting in better airflow performance.

[0069] Furthermore, refer to Figures 2-4 The lower end of the flow guide housing 205c is further provided with a heat insulation housing 207, which is used to assemble the heating component 204 and heat the airflow. Specifically, the flow guide housing 205c has a groove 206e, and the heat insulation housing 207 extends at least partially into the flow guide housing 205c through the lower opening 206a and fits against the groove 206e, so that the flow guide housing 205c and the heat insulation housing 207 form a flat seam connection 208. The heat insulation housing 207 wraps around the heating component 204 to prevent heat from escaping to unwanted areas and improve the overall thermal efficiency; secondly, the flat seam connection 208 eliminates the turbulence caused by uneven structural surfaces, making the gas flow smoother and faster.

[0070] Preferably, the heat insulation shell 207 is made of a high-temperature resistant material (such as aluminum alloy, magnesium alloy, etc.), and the flow guiding shell 205c is made of plastic.

[0071] Example 5

[0072] Reference Figure 11 The present invention also provides a high-speed hair dryer, comprising:

[0073] A cylindrical hair dryer housing 2 has an air inlet 201 and an air outlet 202. An air duct is formed inside the hair dryer housing 2, which is connected to the air inlet 201 and the air outlet 202 respectively. A motor fan assembly 203 and a heating assembly 204 are provided in the air duct. As well as the air guide accessory 1 as described above, the air guide accessory 1 is detachably connected to the hair dryer housing 2.

[0074] When not in use, the airflow generated by the high-speed blower can be directly discharged from the exhaust port 202. However, the airflow lacks guidance, and the actual effect is similar to that of the prior art example 2, which cannot meet the user's needs.

[0075] When in use, the air guide accessory 1 is installed at the exhaust port 202 of the high-speed blower, which can effectively divert, guide and pressurize the air, making the air output stronger and more powerful, and the flow direction more concentrated and stable.

[0076] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the invention shall still fall within the protection scope of the present invention.

Claims

1. An airflow guide accessory for mounting at the exhaust port (202) of a hair dryer housing (2), characterized in that, Including: The inner airflow grille (101) is vertically elliptical in shape and consists of an inner closed area (101a), a central air outlet area (101b), an outer arc-shaped closed area (101c), and an outer edge mounting area (101d). Several diversion ribs (101e) are provided between the outer arc-shaped closed area (101c) and the inner closed area (101a). The diversion ribs (101e) are evenly distributed in the central air outlet area and divide the central air outlet area into multiple independent uniform air outlet holes (1011b). The guide frame (102) is vertically elliptical in shape and consists of an arc-shaped inner guide frame (102a) and an outer frame assembly (102b). The inner end face of the outer frame assembly (102b) abuts against the inner guide grille (101), and the outer frame assembly is also snapped into the exhaust port (202) of the blower housing (2).

2. The airflow guide accessory according to claim 1, characterized in that: The inner closed area (101a) protrudes inward to form an air-breaking diversion area (1012). The transverse cross-section of the air-breaking diversion area (1012) is triangular, and each corner of the air-breaking diversion area (1012) is transitioned with a rounded corner (1013).

3. The airflow guide accessory according to claim 1, characterized in that: The hair dryer housing (2) includes an inner housing (205a), an outer housing (205b) sleeved on the inner housing (205a), and a guide housing (205c) disposed in the air duct, one end of the guide housing (205c) being connected to the exhaust port (202); The flow guide housing (205c) is provided with a first mounting step (2051c), and the outer edge mounting area (101d) of the flow guide inner grille (101) abuts against the first mounting step (2051c); The first mounting step (2051c) is provided with a plurality of fixing holes (2052c), and the diversion rib (101e) is at least partially inserted into the fixing holes (2052c).

4. The airflow guide accessory according to claim 3, characterized in that: The first mounting step (2051c) is also provided with a number of outwardly protruding positioning blocks (2053c), and the fixing hole (2052c) is opened in the positioning block (2053c); The outer edge mounting area (101d) of the inner guide grille (101) is provided with a positioning groove (1011d), the positioning block (2053c) is inserted into the positioning groove (1011d), and the diversion rib (101e), the fixing hole (2052c) and the positioning groove (1011d) are arranged in the same straight line direction.

5. The airflow guide accessory (1) according to claim 3, characterized in that: The assembly outer frame assembly (102b) includes an outer frame base (1021b), a positioning post (1022b) protruding rearward from the outer frame base (1021b), and an insert (1023b) protruding outward from the outer frame base (1021b); A second mounting step (102c) is formed between the outer arc-shaped closed area (101c) and the outer edge mounting area (101d), and the outer frame base (1021b) abuts against the inner guide grille (101); The exhaust vent (202) has a slot (2051a) on its periphery, and the insert (1023b) is inserted into the slot (2051a), and the insert (1023b) has a plurality of notches (1024b). The flow guide housing (205c) is provided with a positioning hole (2054c), and the positioning post (1022b) is inserted into the positioning hole (2054c).

6. The airflow guide accessory according to claim 3, characterized in that: The flow guide housing (205c) has a lower opening (206a), a front opening (206b), and an integral cavity (206c) connecting the lower opening (206a) and the front opening (206b). The integral cavity (206c) has an annular contraction arc surface (206d) that gradually tapers from bottom to top.

7. The airflow guide accessory according to claim 6, characterized in that: The lower end of the flow guide housing (205c) is also provided with a heat insulation housing (207), which is used to assemble the heating assembly (204); The flow guide housing (205c) has a groove (206e) inside, and the heat insulation housing (207) extends at least partially into the flow guide housing (205c) through the lower opening (206a) and fits against the groove (206e) so that the flow guide housing (205c) and the heat insulation housing (207) form a flat seam connection (208).

8. The airflow guide accessory according to claim 7, characterized in that: The heat insulation shell (207) is made of a high-temperature resistant material, and the flow guiding shell (205c) is made of plastic.

9. The airflow guide accessory according to any one of claims 1-8, characterized in that: The central air outlet opening area (101b), the outer arc-shaped closed area (101c), and the arc-shaped guide inner frame (102a) are arranged outward in stages.

10. A high-speed hair dryer, characterized in that, Including: A cylindrical hair dryer housing (2) has an air inlet (201) and an air outlet (202). An air duct is formed within the hair dryer housing (2), which communicates with both the air inlet (201) and the air outlet (202). A motor fan assembly (203) and a heating assembly (204) are provided within the air duct. The air guide accessory (1) as described in any one of claims 1-9 is detachably connected to the hair dryer housing (2).

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