Blow attachment and hair dryer

Abstract

This utility model discloses a hair dryer accessory, comprising: a housing having an air inlet and an air outlet, and defining an air outlet cavity; and a flow guiding component disposed at the air outlet, the flow guiding component being adapted to guide at least a portion of the airflow flowing from the air cavity along the outer surface of the flow guiding component; wherein, the housing has an arc-shaped end face downstream of the air outlet, and the housing has an outwardly protruding flow guiding protrusion between the arc-shaped end face and the air outlet, the flow guiding plane of the flow guiding protrusion being adapted to guide the airflow flowing through the flow guiding plane in a direction away from the arc-shaped end face. According to the embodiments of this utility model, the hair dryer accessory has an optimized air outlet path, avoiding airflow back to the side where the user holds the hair dryer and affecting the user experience.

Description

Technical Field

[0001] This utility model relates to the field of nursing technology, and in particular to a blower accessory and a blower. Background Technology

[0002] Hair dryers are a common household appliance, primarily used for drying and styling hair. As users' hair care needs become increasingly diverse, existing hair dryer accessories, through the design of specific airflow outlets and guiding structures, achieve non-orthogonal airflow with the longitudinal surface of the user's hair.

[0003] However, such hair dryer accessories have defects in airflow control during actual use: after the airflow is discharged from the air outlet, it tends to deviate from the expected blowing direction at the end of the hair dryer accessory and flow towards the direction the user holds it. This not only affects the blowing and styling effect, but also reduces the user experience.

[0004] Therefore, it is necessary to provide a blower accessory with improved airflow control capabilities to better guide airflow and enhance blowing effect and user experience.

[0005] The background description is provided for the purpose of understanding the relevant technologies in this field and is not intended as an admission of prior art. Utility Model Content

[0006] The present invention aims to provide a blower accessory with an optimized airflow path and a hair dryer with the blower accessory, so as to improve the blowing effect and enhance the user experience.

[0007] In some embodiments of this utility model, a blower accessory is provided, which may include:

[0008] The housing has an air inlet and an air outlet, and an air cavity between the air inlet and the air outlet;

[0009] A flow guiding component is provided at the air outlet, and the flow guiding component is used to guide at least a portion of the airflow flowing out of the air cavity to flow along the outer surface of the flow guiding component;

[0010] The housing has a guide protrusion located downstream of the air outlet in the direction of airflow along the outer surface of the guide assembly. The guide protrusion has a guide plane adapted to guide the airflow along the housing to a direction deviating from the housing.

[0011] In some embodiments, the housing has an arc-shaped end face, which is disposed downstream of the air outlet in the airflow direction along the outer surface of the airflow guide assembly, and the airflow guide protrusion protrudes relative to the arc-shaped end face.

[0012] In some embodiments, the airflow guiding assembly includes a plurality of airflow guiding elements, with a first airflow channel formed between adjacent airflow guiding elements.

[0013] In some embodiments, the plurality of guide members are fixed with a plurality of first guide ribs on the side facing the air inlet, the plurality of first guide ribs are spaced apart to form a plurality of first guide grooves, the plurality of first guide grooves are connected to the first air outlet channel and are perpendicular to the extension direction of the first air outlet channel.

[0014] In some embodiments, the corresponding first guide ribs of the plurality of guide members are integrally formed or fixed to each other, the corresponding first guide grooves of the plurality of guide members are through the extension direction of the first guide ribs, and the plurality of first guide grooves are spaced apart from each other at least on the inlet side of the first air outlet channel in the extension direction of the first air outlet channel.

[0015] In some embodiments, the first guide rib, which is integrally formed or fixed to each other, has an extension that extends into the first air outlet channel.

[0016] In some embodiments, a second air outlet channel is formed between the air guide component and the housing.

[0017] In some embodiments, the housing has a plurality of second guide ribs fixed on its inner wall, the plurality of second guide ribs being spaced apart to form a plurality of second guide grooves, the plurality of second guide grooves being in communication with the second air outlet channel and perpendicular to the extension direction of the second air outlet channel.

[0018] In some embodiments, the plurality of second guide ribs are configured to contact the guide member.

[0019] In some embodiments, the plurality of first guide ribs and the plurality of second guide ribs are configured to be staggered with each other in the extension direction of the first air outlet duct.

[0020] In some embodiments, a buffer cavity is formed within the housing, at least a portion of which contains a care solution component having a evaporation portion that contacts the air cavity.

[0021] In some embodiments, the buffer cavity is disposed at the end of the housing along the length direction of the blower attachment, or the buffer cavity is disposed around the inner periphery of the housing.

[0022] In some embodiments, the blower accessory further includes a plurality of guide columns protruding outward from the outer surface of the air guiding assembly and / or the housing, the guide columns having air guiding channels communicating with the air cavity and adapted to guide at least a portion of the airflow from the air cavity out of the guide columns.

[0023] In some embodiments of this utility model, a blower accessory is also provided, which may include:

[0024] The housing has an air inlet and an air outlet, and an air cavity between the air inlet and the air outlet;

[0025] A flow guiding component is disposed at the air outlet, the flow guiding component being adapted to guide at least a portion of the airflow from the air cavity to flow along the outer surface of the flow guiding component;

[0026] Multiple flow guide columns protrude outward from the outer surface of the flow guide assembly and / or the housing, each flow guide column having a flow guide channel communicating with the air cavity and adapted to guide at least a portion of the airflow from the air cavity out of the flow guide column.

[0027] In some embodiments, the guide column has an insertion section and a curved section, wherein the insertion section extends inward through the guide assembly and / or the housing and communicates with the air cavity, and the curved section connects to the outer end of the insertion section and bends toward the airflow direction of the outer surface of the guide assembly.

[0028] In some embodiments, the plurality of guide columns include multiple rows of guide columns arranged along the length direction of the blower attachment, and the tilt angle of the multiple rows of guide columns relative to the height direction of the blower attachment gradually increases along the airflow direction of the outer surface of the guide assembly.

[0029] In some embodiments, the airflow guiding assembly includes a plurality of airflow guiding elements, a first airflow channel is formed between adjacent airflow guiding elements, and a second airflow channel is formed between the airflow guiding assembly and the housing.

[0030] In some embodiments, the bottom end of the flow guide post protruding from the flow guide assembly is flush with the bottom surface of the flow guide member.

[0031] In some embodiments, the housing has a guide protrusion, wherein the guide protrusion is located downstream of the air outlet in the airflow direction along the outer surface of the guide assembly.

[0032] In some embodiments of the present invention, a hair dryer is also provided, which may include the hair dryer accessory described in any embodiment of the present invention.

[0033] The blower accessory of this utility model optimizes and controls the airflow path by using a guide protrusion downstream of the airflow flowing along the outer surface of the guide assembly. The guide plane of the guide protrusion acts as a flow boundary, effectively intercepting and redirecting the airflow from the air outlet before it reaches the curved end face, guiding the airflow in a direction deviating from the curved end face. This design blocks the Coanda effect caused by the curvature characteristics of the airflow when it contacts the curved end face, avoids the airflow adhering to the wall of the curved surface and the unfavorable backflow to the user's hand, ensures that the airflow flows in the intended direction, improves the blowing effect, and enhances the user experience.

[0034] Other optional features and technical effects of the embodiments of this utility model are partly described below and partly apparent from reading this document. Attached Figure Description

[0035] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The elements shown are not limited to the scale shown in the drawings, and the same or similar reference numerals in the drawings denote the same or similar elements, wherein:

[0036] Figure 1 This is an exemplary first structural perspective view of a hair dryer accessory according to an embodiment of the present utility model;

[0037] Figure 2 This is a top view of an exemplary first structure of a hair dryer accessory according to an embodiment of the present utility model;

[0038] Figure 3 This is an exemplary first structural front view of a hair dryer accessory according to an embodiment of the present utility model;

[0039] Figure 4a This is an exemplary first exploded view of a hair dryer accessory according to an embodiment of the present utility model;

[0040] Figure 4b This is an exemplary second exploded view of a hair dryer accessory according to an embodiment of the present utility model;

[0041] Figure 5 This is an exemplary second structural cross-sectional view of a hair dryer accessory according to an embodiment of the present utility model;

[0042] Figure 6 This is an exemplary second structural perspective view of a hair dryer accessory according to an embodiment of the present utility model;

[0043] Figure 7 This is an exemplary second structural front view of a hair dryer accessory according to an embodiment of the present utility model;

[0044] Figure 8 This is an exemplary third structural cross-sectional view of a hair dryer accessory according to an embodiment of the present utility model.

[0045] Figure label:

[0046] 100. Blower accessories;

[0047] 10. Housing; 11. Air inlet; 12. Air outlet; 13. Air cavity; 14. Arc-shaped end face; 15. Guide protrusion; 151. Guide plane; 16. Buffer cavity; 161. Connecting part; 17. Rectifier screen; 18. Care fluid assembly;

[0048] 20. Airflow guide assembly; 21. Airflow guide component; 22. First air outlet duct; 23. First airflow guide rib; 231. First airflow guide groove; 24. Second air outlet duct; 25. Second airflow guide rib; 251. Second airflow guide groove; 26. Extension;

[0049] 30. Flow guide column; 31. Insertion section; 32. Bending section; 34. Flow guide channel; 341. Column inlet; 342. Column outlet. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. Here, the illustrative embodiments and descriptions of this utility model are used to explain the present utility model, but are not intended to limit the present utility model.

[0051] In this embodiment of the utility model, unless otherwise explicitly stated, the terms "upstream" and "downstream" should be understood as terms of relative positional relationship based on the direction of fluid flow. On the fluid flow path, the direction of the airflow source is "upstream" and the direction of the airflow outlet is "downstream".

[0052] As mentioned earlier, existing hair dryer accessories have defects in airflow control during actual use: when the airflow is discharged from the air outlet, it is easy for it to deviate from the expected blowing direction at the end of the hair dryer accessory and flow back towards the side held by the user, blowing onto the user's arm or hand. Especially when the user is using hot air to dry their hair, the backflow of hot air can easily cause discomfort to the user's skin, which adversely reduces the user experience.

[0053] In order to solve the problems existing in the prior art, the present invention provides a hair dryer accessory that can effectively control the airflow direction, prevent the airflow from flowing back to the side of the user holding the hair care device, and can perform multi-layer treatment on the hair.

[0054] In some embodiments of this utility model, reference is made to Figures 1 to 8 A blower accessory 100 is provided, which may include a housing 10 and a flow guiding assembly 20.

[0055] In some embodiments, reference Figure 1 and Figure 2 as well as Figure 5 The housing 10 may have an air inlet 11, an air outlet 12 communicating with the air inlet 11, and an air cavity 13 between the air inlet 11 and the air outlet 12. In this embodiment, the air inlet 11 may be connected, for example, to the air outlet of a hair dryer, styling appliance, or other care appliance to receive airflow from the care appliance into the hair dryer accessory 100 and discharge it through the air cavity 13 to the air outlet 12. In some embodiments, reference is made to... Figure 1 and Figure 2 The upper part of the housing 10 may have two side walls arranged parallel to each other along the width direction W of the blower attachment 100. Two ends may be provided between the two side walls along the length direction of the blower attachment 100. The upper ends of the two side walls and the upper ends of the two ends together define a generally rectangular air outlet 12.

[0056] In some embodiments, the housing 10 may have an arcuate end face 14, which is disposed downstream of the air outlet 12 in the airflow direction along the outer surface of the guide assembly 20. In some embodiments, reference... Figure 2 and Figure 3 The guide plane 151 is provided to protrude relative to the arc-shaped end face 14. In this embodiment, reference... Figure 3 A boss is formed between the downstream of the airflow flowing along the guide plane 151 and the arc-shaped end face 14. This boss has a height h such that the airflow flowing on the guide plane 151 does not contact the arc-shaped end face 14. Thus, the boss further ensures that the airflow flowing on the outer surface of the guide plane 151 does not contact the arc-shaped end face 14. Compared with other shapes such as arcs / curved surfaces, the boss can better cut off the airflow path, further ensuring that the airflow is guided in a direction away from the arc-shaped end face 14.

[0057] In some embodiments of this utility model, reference is made to Figure 2 and Figure 3 A flow guide assembly 20 is disposed at the air outlet 12, and the flow guide assembly 20 is used to guide at least a portion of the airflow from the air cavity 13 to the air outlet along the outer surface of the flow guide assembly 20. In some embodiments, reference Figure 1 and Figure 2The airflow guide component 20 is configured, for example, to allow the outflowing airflow to flow along its outer surface in the length direction L of the blower attachment 100. In this embodiment, the airflow direction on the outer surface of the airflow guide component 20 is substantially parallel to the surface in contact with the user's hair. Thus, the airflow blown out by the airflow guide component 20 avoids blowing the airflow perpendicularly to the surface in contact with the user's hair, but rather is substantially parallel to the surface, allowing the user's hair to naturally adhere to the outer surface of the airflow guide component 20. For example, the hot airflow blown out by the airflow guide component 20 can "iron" the hair, preventing the airflow from impacting the hair perpendicularly and causing it to fly away and become damaged. In some embodiments, reference... Figure 1 and Figure 3 The outer surface of the flow guiding component 20 is generally horizontal and slightly convex in the middle, forming an outer surface with a predetermined curvature. This design optimizes the flow field pressure distribution, reduces the possibility of edge airflow separation and backflow, and improves fluid dynamic efficiency.

[0058] In some embodiments, reference Figure 2 and Figure 3The housing 10 may also have a guide protrusion 15 in the direction of airflow along the outer surface of the guide assembly 20. The guide protrusion 15 is located downstream of the air outlet 12 and has a guide plane 151 adapted to guide the airflow flowing along the housing (10) in a direction deviating from the housing 10. For illustrative purposes, and not as a limitation, the airflow from the guide assembly 20 flows downstream along the outer surface of the guide assembly 20 to the end of the housing 10. When the airflow contacts the arcuate end face 14 at the end of the housing 10, the airflow adheres to the curved surface 14 due to the Coanda effect and flows back towards, for example, the air inlet 11. This may cause the airflow to flow unfavorably back to the side of the nursing device body connected to the air inlet 11, in other words, back to the side where the user holds the nursing device body. Therefore, especially when the guide assembly 20 outputs hot air, the backflowing heated airflow may inappropriately blow onto the user's arms and hands, affecting the user experience. In this embodiment, when the airflow flows downstream along the outer surface of the guide assembly 20, it is first guided by the guide protrusion 15 before contacting the arc-shaped end face 14. The guide plane 151 of the guide protrusion 15 is set in front of the arc-shaped end face 14 and cuts off this undesirable airflow path. The planar guide plane 151 has a more definite airflow deflection angle than the curved / arc surface, which can achieve precise control of the airflow direction and direct the airflow to a direction away from the housing 10, especially to a direction away from the arc-shaped end face 14, thus avoiding the backflow phenomenon caused by the airflow contacting the arc-shaped end face 14. Thus, through the innovative design of the airflow guiding plane 151, the airflow direction of the entire hair dryer accessory 100 is improved, allowing the airflow to continue flowing in a direction roughly parallel to the contact surface with the user's hair. This avoids the adverse effects of backflow airflow on the user's handheld side, and the downstream airflow can continue to care for the user's hair downstream of the hair dryer accessory 100, improving the care efficiency and effect of the air outlet accessory 100. As a result, the user can obtain a more stable and controllable airflow and improved care effect during use.

[0059] In some embodiments, in conjunction with reference Figure 2 , Figure 4a , Figure 4b and Figure 5 The airflow guiding assembly 20 may include multiple airflow guiding elements 21, with adjacent airflow guiding elements 21 forming a first air outlet channel 22. Figure 4a , Figure 4b as well as Figure 5 In the illustrated embodiment, the flow guiding assembly 20 includes two flow guiding elements 21, with the two flow guiding elements 21 forming one first air outlet channel 22 between them. However, it is conceivable that in other embodiments, the flow guiding assembly 20 may include more flow guiding elements 21 and form more first air outlet channels 22 between adjacent flow guiding elements 21, and this utility model does not limit this.

[0060] In some embodiments, reference Figure 2 , Figure 4a , Figure 4b and Figure 5 The first air outlet channel 22 is configured as an elongated air outlet extending along the width direction W of the air outlet accessory 100. The airflow from the air cavity 13 is guided by the guide member 21 and flows out of the first air outlet channel 22 to the outer surface of the guide member 21, and flows on the outer surface of the guide member 21 in a direction that is approximately orthogonal to the extension direction of the first air outlet channel 22.

[0061] In some embodiments, the guide member 21 may have a guide portion facing the first air outlet channel 22 at its upstream end along the airflow direction on its outer surface. Airflow from the air cavity 13 enters the first air outlet channel 22 through the air inlet portion and flows along the outer surface of the guide member 21 via the guide portion. In some embodiments, the guide portion may have an arc-shaped guide surface protruding towards one side of the first air outlet channel 22. The arc-shaped guide surface is adapted to guide the airflow from the first air outlet channel 22 along the outer surface of the guide member 21. In this embodiment, when the airflow from the air cavity 13 reaches the first air outlet channel 22, the airflow contacts the arc-shaped guide surface and adheres to the curved arc-shaped guide surface due to the Coanda effect, and is thereby redirected by the arc-shaped guide surface. That is, the airflow direction changes from being approximately perpendicular to the outer surface of the guide member 20 to being approximately parallel to the outer surface of the guide member 20, and then flows along the outer surface of the guide member 20.

[0062] In some embodiments, the outer surface of the guide member 21 may have multiple protrusions along a direction substantially orthogonal to the first air outlet channel 22, forming multiple flow paths between adjacent protrusions. These multiple flow paths can further directionally guide and evenly distribute the airflow exiting the first air outlet channel 22. In this embodiment, the multiple flow grooves can divide the airflow on the outer surface of the guide member 21 into multiple substantially parallel sub-airflows, thereby preventing the overall airflow exiting the first air outlet channel 22 from diverging on the outer surface of the guide member and forming unfavorable turbulence, thus helping to provide even and gentle care for the hair. However, it is understood that in other embodiments, the outer surface of the guide member 21 may not have these protrusions, and this invention does not limit this.

[0063] In some embodiments, reference Figure 4a , Figure 4b and Figure 5 Multiple guide members 21 may have multiple first guide ribs 23 fixed on the side facing the air inlet 11. In this embodiment, the multiple first guide ribs 23 are spaced apart to form multiple first guide grooves 231, which communicate with the first air outlet channel 22 and are perpendicular to the extending direction of the first air outlet channel 22. Figure 4a , Figure 4b as well as Figure 5 In the illustrated embodiment, the guide member 21 has three spaced-apart first guide ribs 23 on the side facing the air inlet 11, and forms two first guide grooves 231 that communicate with the first air outlet channel 22. In some embodiments, the extending direction of the plurality of first guide ribs 23 is, for example, substantially perpendicular (or orthogonal) to the first air outlet channel 22, and correspondingly, the extending direction of the plurality of first guide grooves 231 is also, for example, substantially perpendicular (or orthogonal) to the first air outlet channel 22. In this embodiment, when the airflow from the air cavity 13 comes into contact with the side of the guide member 21 facing the air inlet 11, the airflow can be guided by the first guide rib 23 and flows along the plurality of first guide grooves 231 to the first air outlet channel 22, thereby ensuring the airflow volume of the first air outlet channel 22 and suppressing the turbulence and turbulence generated by the high-speed airflow coming into contact with the plurality of guide members 21. When the airflow remains relatively parallel and flows evenly to the first air outlet channel 22 along the plurality of first guide grooves 231, the first air outlet channel 22 can provide a dispersed parallel airflow bundle. In actual use, such airflow helps to prevent the user's hair from getting tangled and messy, and improves the user's hair drying and styling experience.

[0064] In some embodiments, a plurality of air guides 21 are respectively fixed with a plurality of first air guide ribs 23 on the side facing the air inlet 11. In this embodiment, the plurality of first air guide ribs 23 of adjacent air guides 21 may not contact each other. In this embodiment, this design allows each of the two air guides 21 to have independent degrees of freedom of movement, and can, for example, float up and down relative to the housing 10 in the height direction H of the blower attachment 100, and / or rotate relative to the housing 10 around the width direction W of the blower attachment 100. This design takes into account the fact that it is difficult for users to always maintain the ideal usage angle in actual operation, so that the blower attachment 100 has a certain angle adjustment capability, which can adapt to the user's actual usage angle of the blower attachment 100, allowing the air guides 21 to finely adjust their positions according to the plane contour of the user's hair, ensuring the stability of the airflow path and the consistency of the flow field characteristics under different usage angles, and providing users with a more adaptive hair care experience.

[0065] In some embodiments, reference Figure 4a , Figure 4b and Figure 5 The corresponding first guide ribs 23 of the plurality of guide elements 21 are further constructed to be integrally formed or fixed to each other. In this embodiment, the corresponding first guide ribs 23 of the plurality of guide elements 21 can be integrally formed, for example, the plurality of guide elements 21 share a plurality of integrally formed first guide ribs 23. Figure 4a , Figure 4b as well as Figure 5In the illustrated embodiment, the two air guides 21 are fixed with three shared, integrally formed first air guide ribs 23 on the side facing the air inlet 11. In some embodiments, the two air guides 21 are integrated by means of the integrally formed or fixed to each other first air guide ribs 23, and can, for example, float up and down relative to the housing 10 in the height direction H of the blowing accessory 100, and / or rotate relative to the housing 10 in the width direction W of the blowing accessory 100.

[0066] In some embodiments, the corresponding first guide grooves 231 of the plurality of guide members 21 extend along the extending direction of the first guide ribs 23. In other words, viewed from the air inlet 11 toward the air outlet 12, the first guide ribs 23, integrally formed or fixed to each other, span the second air outlet channel 24. In some embodiments, the plurality of first guide grooves 231 are spaced apart from each other at least on the inlet side of the first air outlet channel 22 in the extending direction of the first air outlet channel 22. In this embodiment, the arrangement of the first guide ribs 23 thereby divides the airflow from the air chamber 13 into multiple parallel airflow streams before flowing into the first air outlet channel 22, with each airflow stream entering the first air outlet channel 22 separately. This design avoids mutual interference of airflows and the generation of eddies. At the same time, the divided parallel airflow streams have better laminar flow characteristics and can act more evenly on the hair surface when flowing out of the first air outlet channel 22, improving the effect of blow-drying and styling.

[0067] In some embodiments, reference Figure 4a , Figure 4b and Figure 5 The first guide rib 23, integrally formed or fixed to each other, has an extension portion 26 extending into the first air outlet channel 22. In this embodiment, through the design of the extension portion 26, the multiple first guide grooves 231 are not only spaced apart from each other at the inlet side of the first air outlet channel 22 in the extending direction of the first air outlet channel 22, but also further spaced apart at the extension portion 26, i.e., at least a portion within the first air outlet channel 22. Thus, the airflow from the air chamber 13 is not only divided into multiple parallel airflow bundles at the inlet side of the first air outlet channel 22, but these parallel airflow bundles are also further separated and guided by the extension portion 26 in the first air outlet channel 22, thereby further avoiding mutual interference of airflows and the possible generation of vortices in the first air outlet channel 22, so that the airflow bundles remain relatively parallel and uniform when flowing out of the first air outlet channel 22. This dispersed parallel airflow bundle helps to prevent the user's hair from getting tangled and messy, and helps the user's hair to be dried and styled.

[0068] In some embodiments, in conjunction with reference Figure 2 , Figure 4a , Figure 4b and Figure 5A plurality of second air outlet channels 24 are also formed between the flow guiding assembly 20 and the housing 10. In this embodiment, the flow guiding assembly 20 includes two flow guiding members 21, and two second air outlet channels 24 are formed between the flow guiding members 21 and the housing 10, respectively. In some embodiments, reference Figure 2 , Figure 4a , Figure 4b and Figure 5 The second air outlet duct 24 is configured, for example, as an elongated air outlet extending along the width direction W of the air outlet accessory 100. Airflow from the air chamber 13 is guided by the guide member 21 and the housing 10 and flows out through the second air outlet duct 24 to the outer surface of the guide member 21 or the housing 10, flowing along a direction approximately orthogonal to the extending direction of the second air outlet duct 24 on the outer surface of the guide member 21 or the housing 10. In this embodiment, the arrangement of the second air outlet duct 24 achieves dual-path airflow output; part of the airflow is output through the first air outlet duct 22, and part of the airflow is output through the second air outlet duct 24. This splitting design effectively reduces the airflow pressure of a single air outlet, ensuring the airflow volume of the air outlet accessory 100 while reducing noise generation.

[0069] In some embodiments, reference Figure 4a , Figure 4b and Figure 5 A plurality of second guide ribs 25 are fixed to the inner wall of the housing 10. In some embodiments, reference Figure 4a , Figure 4b and Figure 5 The second guide rib 25 extends from the inner wall of the housing 10 toward the second air outlet channel 24, for example, approximately along the width W direction of the blower attachment 100. In this embodiment, multiple second guide ribs 25 are spaced apart to form multiple second guide grooves 251, which communicate with and are perpendicular to the extension direction of the second air outlet channel 24. In this embodiment, when the airflow from the air cavity 13 contacts the inner walls at both ends of the housing 10, the airflow can be guided by the housing 10 and the multiple second guide ribs 25. The arrangement of the second guide ribs 25 divides the airflow from the air cavity 13 into multiple parallel airflow streams before flowing into the second air outlet channel 24, with each stream entering the second air outlet channel 24 separately. This suppresses turbulence caused by the airflow contacting the inner walls at both ends of the housing 10, ensuring the uniformity of the airflow entering the second air outlet channel 24.

[0070] In some embodiments, a plurality of second guide ribs 25 may contact the guide member 21 and / or the first guide rib 23. In some embodiments, a plurality of second guide ribs 25 may contact the guide member 21, for example, contacting the side of the guide member 21 near the second air outlet duct 24. In this embodiment, reference... Figure 4a , Figure 4b and Figure 5Multiple second guide ribs 25 are spaced apart from each other on the inlet side of the second air outlet 24 along the extension direction of the second air outlet 24. Thus, similar to multiple first guide ribs 23, multiple second guide ribs 25 avoid mutual interference of airflow and the generation of eddies. The parallel airflow bundles separated by multiple second guide ribs 25 have better laminar flow characteristics, and can act more evenly on the hair surface when flowing out of the second air outlet 24. Combined with the parallel airflow bundles formed by multiple first guide ribs 23, they form a synergistic effect, further optimizing the uniformity of airflow distribution, avoiding messy airflow that causes the user's hair to become tangled and messy, and further improving the effect of blow-drying and styling.

[0071] In other embodiments, multiple second guide ribs 25 also extend into the second air outlet channel 24, thereby further separating at least a portion of the multiple second guide grooves 251 in the second air outlet channel 24. Consequently, the airflow from the air chamber 13 is not only divided into multiple parallel airflow bundles at the inlet side of the second air outlet channel 24, but these parallel airflow bundles are also further separated and guided in the second air outlet channel 24, thereby further avoiding mutual interference of airflows in the second air outlet channel 24 and the generation of possible vortices. This ensures that the airflow bundles remain relatively parallel and uniform when flowing out of the second air outlet channel 24. As mentioned above, such dispersed parallel airflow bundles help to prevent the user's hair from getting tangled and messy, and help the user's hair to be dried and styled.

[0072] In some embodiments, the plurality of second guide ribs 25 may also contact the first guide rib 23. In some embodiments, reference Figure 4a , Figure 4b and Figure 5 When viewed along the width direction W of the blowing attachment 100, the edges of the plurality of second guide ribs 25 can, for example, contact the edges of the first guide ribs 23, i.e., the plurality of second guide ribs 25 are in line contact with the plurality of first guide ribs 23. Thus, the plurality of first guide channels 231 and the corresponding plurality of second guide channels 251 are interconnected, and the airflow from the plurality of first guide channels 231 is replenished into the corresponding plurality of second guide channels 251, and then discharged from the second air outlet duct 24. In this embodiment, this interconnected structure significantly reduces the local resistance loss from the airflow replenished from the plurality of first guide channels 231 into the corresponding plurality of second guide channels 251, avoiding flow separation and vortex generation. Furthermore, this design optimizes space utilization efficiency, reduces ineffective fluid energy loss through precise guidance, and improves the directional control accuracy of the airflow.

[0073] In some embodiments, when viewed along the width direction W of the blower attachment 100, the plurality of second guide ribs 25 may partially overlap with the first guide ribs 23, i.e., the plurality of second guide ribs 25 and the plurality of first guide ribs 23 are in surface contact. Thus, while guiding the airflow, this surface contact allows the plurality of second guide ribs 25 and the plurality of first guide ribs 23 to form an integral structure, enhancing the overall structural stability and further suppressing vibrations of the plurality of second guide ribs 25 and the plurality of first guide ribs 23 caused by possible high-speed airflow, thereby helping to reduce the noise level inside the blower attachment 100.

[0074] In other embodiments, viewed along the length L of the blowing accessory 100, a plurality of first guide ribs 23 and a plurality of second guide ribs 25 are configured to be staggered with each other in the extension direction of the first air outlet channel 22. Thus, the airflow from the plurality of first guide slots 231 is further separated by the plurality of second guide ribs 25 when it enters the corresponding plurality of second guide slots 251, thereby dividing the airflow entering the second air outlet channel 24 into more parallel sub-airflows, enabling the second air outlet channel 24 to output a more uniform and orderly airflow.

[0075] In some embodiments, reference Figure 4a , Figure 4b and Figure 5 A buffer cavity 16 is formed within the housing 10 and / or the air guide 21. In this embodiment, the buffer cavity 16 serves as a noise isolation structure during airflow. Specifically, since airflow often generates aerodynamic noise waves when entering and exiting the system, the buffer cavity 16 can effectively block the propagation path of the noise waves, attenuate the sound wave energy, and weaken or eliminate noise reflection and propagation, thereby reducing the overall noise level of the blower accessory 100. Furthermore, the buffer cavity 16 can also act as a thermal insulation structure. When the blower accessory 100 receives high-temperature airflow from the main body of the nursing appliance, the buffer cavity 16 can effectively block heat transfer, reducing the direct impact of the high-temperature airflow on the surface of the housing 10 and the air guide assembly 20, improving safety and comfort. Simultaneously, the buffer cavity 16 also strengthens the structure, improving the mechanical strength and durability of the entire blower accessory.

[0076] In some embodiments, reference Figure 4a , Figure 4b and Figure 5The buffer cavity 16 also provides additional functional expansion space for the hair dryer accessory 100, accommodating various functional components without affecting the main airflow channel design. In some embodiments, at least a portion of the buffer cavity 16 may contain a conditioning liquid component 18, which has a evaporation section in contact with the air chamber 13. In this embodiment, the conditioning liquid component 18 may contain essential oils, hair conditioners, or other conditioning ingredients. Through the action of the evaporation section, the conditioning ingredients can evaporate and enter the air chamber 13, being output with the airflow. This provides nourishment and conditioning to the hair while drying it, achieving an integrated function of drying and conditioning, thus enhancing the user experience.

[0077] In some embodiments, the buffer cavity 16 is disposed at an end of the housing 10 along the length direction of the blower attachment 100, for example, at at least one end of the housing 10 along the length direction of the blower attachment 100. In some embodiments, the buffer cavity 16 may be disposed around the inner periphery of the housing 10, so that the care ingredients in the care liquid assembly 18 can be evenly diffused throughout the air cavity 13.

[0078] In some embodiments, the buffer cavity 16 may have a connecting portion 161 communicating with the air cavity 13. In some embodiments, the evaporating portion of the care solution component 18 may contact the air cavity 13 through the connecting portion 161. In some embodiments, the evaporating portion may be spaced apart from the connecting portion 161 or closely attached to the connecting portion 161. In other embodiments, the evaporating portion of the care solution component 18 may also extend directly out of the buffer cavity 16 and directly contact the air cavity 13, which is not a limitation of the present invention. However, it is understood that in further embodiments, the evaporating portion of the care solution component 18 may be separately disposed from the main body of the care solution component 18. For example, the main body of the care solution component 18 containing care ingredients may be disposed in the buffer cavity 16, while the evaporating portion of the care solution component 18 may be separately disposed in the air cavity 13, and communicate with the main body of the care solution component 18 through a connecting structure that can transmit care ingredients, thereby receiving care ingredients from the main body of the care solution component 18 and evaporating them into the air cavity 13. In one specific embodiment, the separately configured evaporation section is an evaporation mesh connected to the main body of the care liquid component 18 and disposed on the inner wall of the blower accessory 100. The material of the evaporation mesh includes, but is not limited to, polymer microporous membrane, polyester fiber mesh, non-woven fabric, modified polytetrafluoroethylene (PTFE) porous material, etc., as long as it can effectively absorb and conduct care liquid, and provide sufficient gas-liquid contact area when airflow passes through, so as to achieve efficient evaporation of care ingredients.

[0079] In some embodiments, in conjunction with reference Figure 3 , Figure 4a , Figure 4b and Figure 5The guide plane 151 is located downstream of and adjacent to the second air outlet duct 24. In this embodiment, this positioning design ensures that the guide plane 151 can directly act on the airflow exiting from the second air outlet duct 24, achieving immediate redirection of this portion of the airflow. In this embodiment, since the second air outlet duct 24 is relatively close to the arc-shaped end face 14, the outflowing airflow is also relatively large, and therefore it is prone to backflow at the arc-shaped end face 14 due to the Coanda effect. Therefore, placing the guide plane 151 at this location can maximize its guiding effect and effectively block the formation of undesirable backflow airflow paths.

[0080] In some embodiments of this utility model, reference is made to Figure 4a and Figure 4b A rectifier mesh 17 may be provided inside the air cavity 13, through which the airflow from the air inlet 11 flows to the air outlet 12. In this embodiment, the rectifier mesh 17 not only filters dust and impurities in the airflow, protecting the user's hair and scalp health, but also plays a role in equalizing airflow. When the airflow passes through the fine mesh of the rectifier mesh 17, it is further divided and rectified, making the output airflow more uniform and stable, while effectively reducing airflow noise.

[0081] In some embodiments of this utility model, reference is made to Figures 1 to 8 A blower accessory 100 is provided, including a housing 10, a flow guide assembly 20, and a plurality of flow guide columns 30.

[0082] In some embodiments, reference Figures 6 to 8 The outer surface of the airflow guiding assembly 20 and / or housing 10 may also have a plurality of outwardly protruding airflow guiding columns 30. In some embodiments, the airflow guiding columns 30 may have, for example, an annular or elliptical annular cross-sectional shape. In some embodiments, the airflow guiding column 30 has an internal airflow guiding channel 34, which connects to the ventilation cavity 13 and is adapted to guide at least a portion of the airflow from the ventilation cavity 13 out of the airflow guiding column 30. In this embodiment, the airflow guiding column 30 may include a column inlet 341 communicating with the ventilation cavity 13 and a column outlet 342 communicating with the outside, so that at least a portion of the airflow from the ventilation cavity 13 enters the airflow guiding channel 34 through the column inlet 341 and is finally discharged to the outside through the column outlet 342. In this embodiment, the arrangement of the airflow guiding column 30 solves a significant limitation of traditional hair dryer accessories: when the user's hair is thick, the airflow can only flow out from the air outlet 12, making it difficult to reach the deeper layers of hair. In this embodiment, the airflow column 30 can extend into the user's hair, which can not only fluff and separate hair layers, but also deliver airflow directly to the deep layers of hair, achieving simultaneous drying and styling of all hair layers. This three-dimensional airflow output method significantly improves blow-drying efficiency and styling effect.

[0083] In some embodiments of this utility model, reference is made to Figure 6and Figure 7 The guide column 30 may have an insertion section 31 and a curved section 32, wherein the insertion section 31 may extend inwardly through the guide assembly 20 and / or the housing 10 and communicate with the air cavity 13, that is, at least a portion of the insertion section 31 is inserted into the guide assembly 20 and / or the housing 10. In some embodiments, the curved section 32 may be connected to the outer end of the insertion section 31 and the curved section 32 bends toward the airflow direction along the outer surface of the guide assembly 20. Optionally, the bending direction of the curved section 32 is in the same direction as the airflow direction along the outer surface of the guide assembly 20. In this embodiment, the insertion section 31 ensures that the airflow can penetrate deep into the hair, while the bending section 32 redirects the airflow to the main airflow direction. Thus, the airflow output from the guide column 30 synergizes with the main airflow flowing from the outer surface of the guide assembly 20, jointly providing a three-dimensional airflow that is non-orthogonal to the user's hair contact surface and optionally approximately parallel to it. This not only allows the airflow to be directly delivered to the deep layers of hair via the insertion section 31, but also, through the bending section 32 which bends in the same direction as the airflow along the outer surface of the guide assembly 20, smooths the deep layers of hair, achieving multi-layered hair drying, care, and styling. In this embodiment, with the help of the insertion section 31 and the bending section 32, the guide column 30 can also, similar to a comb, tease the user's hair, continuously outputting a uniform airflow to care for the hair during the teasing process, providing a more convenient and comfortable user experience.

[0084] In some embodiments, reference Figure 8 The insertion section 31 communicates with the air cavity 13, thereby forming a complete airflow channel to ensure that the airflow in the air cavity 13 can be smoothly output through the guide column 30. This through-type design avoids airflow blockage and pressure loss, ensuring the effective operation of the guide column 30. In some embodiments, the bottom end of the guide column 30 protruding from the guide assembly 20 is flush with the bottom surface of the guide member 21. In other words, the column inlet 341 at the bottom end of the guide column 30 is constructed to be flush with the bottom surface of the guide member 21. Thus, this flush design effectively reduces the interference of the insertion section 31 of the guide column 30 on the main flow field in the air cavity 13, helps to maintain the flow stability of the airflow in the multiple first guide slots 231, and reduces the local turbulence intensity and flow field disturbance. Meanwhile, the smooth transition between the column inlet 341 and the wall reduces the local pressure gradient and boundary layer separation at the column inlet 341, lowers the shape drag coefficient and local loss coefficient, thereby reducing system pressure loss and increasing the effective flow rate obtainable by the guide column 30, thus ensuring the airflow delivery efficiency of the multi-layer hair processing system.

[0085] In some embodiments of this utility model, reference is made to Figure 8The multiple airflow guide columns 30 include multiple rows of airflow guide columns 30 arranged along the width direction of the blow-drying attachment 100. The tilt angle of the multiple rows of airflow guide columns 30 relative to the height direction of the blow-drying attachment 100 gradually increases along the airflow direction on the outer surface of the airflow guide assembly 20. In this embodiment, this gradually tilted design allows the airflow guide columns 30 at different positions to adapt to different hair layers and styling needs. As an explanation and not a limitation, when a user uses the blow-drying attachment 100 to style their hair, the contact angle between the hair strands and the blow-drying attachment 100 constantly changes. The gradually tilted angle design of the airflow guide columns 30 ensures that the airflow guide columns 30 maintain the optimal angle of contact with the hair strands throughout the styling action, maintaining the ideal contact state between the airflow and the hair strands. This avoids the airflow deviation and uneven effect problems that may occur during dynamic use in traditional single-angle designs, and better conforms to the user's actual usage actions, providing the user with a comfortable hair care experience.

[0086] In this embodiment of the invention, technical features of different embodiments can be used in combination, which falls within the protection scope of this invention. In one example, the housing 10 may have a guide protrusion 15 downstream of the air outlet 12 along the airflow direction of the outer surface of the guide assembly 20. The guide plane 151 of the guide protrusion 15 is adapted to guide the airflow flowing through the guide plane 151 to a direction away from the housing 10. In this embodiment, the outer surface of the guide assembly 20 and / or the housing 10 may also have a plurality of outwardly protruding guide columns 30. The guide columns 30 have guide channels 34 connecting to the ventilation cavity 13, so that at least part of the airflow of the ventilation cavity 13 is discharged through the guide channels 34. Thus, the guiding effect of the guide protrusion 15 and the three-dimensional airflow output of the guide columns 30 are combined to solve the airflow backflow problem and achieve deep hair treatment, providing users with the best blow-drying and styling experience.

[0087] In some embodiments of this utility model, a hair dryer is also provided, which may include a hair dryer attachment 100 and a hair dryer body according to any embodiment of this utility model. In this embodiment, the air outlet of the hair dryer body is detachably connected to the hair dryer attachment 100 according to any of the above embodiments of this utility model, so that the airflow from the hair dryer body can enter the hair dryer attachment 100 through the air inlet 11, be guided by the flow guide component 20 in the hair dryer attachment 100 and the structure described in the embodiment, and at least partially flow out from the flow guide component 20. In a specific embodiment of this utility model, when the user starts the hair care device, the fan located in the handle starts working, drawing in ambient air from the air inlet into the first fluid channel. The airflow then enters the second fluid channel of the blower tube. In this channel, a heating element (such as a PTC heater or a far-infrared heating element) is configured to heat the airflow. The heated high-temperature airflow flows out from the air outlet of the blower tube and enters the air inlet 11 of the blower accessory 100. Then, under the guidance of the flow guide assembly 20 and the structure described in the embodiment, the airflow is guided, decelerated, and split. Finally, the airflow is stably output to the outside through the first air outlet channel 22, the second air outlet channel 24, and the optional flow guide column 30 on the flow guide assembly 20, thereby facilitating the user to care for their hair and obtain a comfortable hair drying and styling experience.

[0088] It should be understood that the hair dryer accessory 100 of this utility model is applicable to various hair care appliances that require the installation of diffusers, including but not limited to traditional hair dryers, flexible hair dryers, hair dryers, hot air styling tools, multi-functional hair care tools, and other hair care devices. The hair dryer accessory 100 of this utility model can be used in conjunction with appropriate connection structures to form a complete hair care system. Through optimized airflow path and multi-level airflow control, three-dimensional airflow output, and integrated care functions, it provides users with a professional-grade hair care solution.

[0089] This document describes several embodiments of the present invention. However, for the sake of brevity, the descriptions of the embodiments are not exhaustive, and identical or similar features or parts between the embodiments may be omitted. In this document, "one embodiment," "some embodiments," "example," "specific example," or "some examples" refers to at least one embodiment or example applicable to the present invention, but not all embodiments. The above terms do not necessarily refer to the same embodiment or example. Without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples.

[0090] In this document, it should be understood that, unless otherwise expressly defined, the directional terms such as “center,” “axial,” “radial,” “circumferential,” “longitudinal,” “lateral,” “length,” “width,” and “thickness,” as well as spatial position terms such as “up,” “down,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” and movement direction terms such as “clockwise” and “counterclockwise”, are all relative orientational relationships or positional descriptions defined based on the specific posture and orientation of the device shown in the accompanying drawings, and do not imply or limit that the device or element must have a certain specific orientation or be constructed or operated in a specific posture. Therefore, they should not be construed as limitations on this utility model.

[0091] The exemplary systems and methods of this invention have been specifically shown and described with reference to the foregoing embodiments, and are merely examples of the best mode for implementing the systems and methods. Those skilled in the art will understand that various changes can be made to the embodiments described herein without departing from the spirit and scope of this invention as defined in the appended claims when implementing the systems and / or methods.

Claims

1. A blower attachment (100), characterized in that, include: The housing (10) has an air inlet (11) and an air outlet (12), and an air cavity (13) between the air inlet (11) and the air outlet (12). A flow guide assembly (20) is provided at the air outlet (12), and the flow guide assembly (20) is used to guide at least part of the airflow flowing out from the air cavity (13) along the outer surface of the flow guide assembly (20); The housing (10) has a flow guide protrusion (15), which is located downstream of the air outlet (12) in the direction of airflow flow along the outer surface of the flow guide assembly (20). The flow guide protrusion (15) has a flow guide plane (151) adapted to guide the airflow flowing along the housing (10) to a direction deviating from the housing (10).

2. The blow attachment of claim 1, wherein, The housing (10) has an arc-shaped end face (14). In the airflow direction along the outer surface of the airflow guide assembly (20), the arc-shaped end face (14) is located downstream of the air outlet (12), and the airflow guide protrusion (15) is provided to protrude relative to the arc-shaped end face (14).

3. The blow attachment of claim 1, wherein, The airflow guiding assembly (20) includes a plurality of airflow guiding elements (21), and a first airflow channel (22) is formed between adjacent airflow guiding elements (21).

4. The blow attachment of claim 3, wherein, The plurality of guide members (21) are fixed with a plurality of first guide ribs (23) on the side facing the air inlet (11). The plurality of first guide ribs (23) are spaced apart to form a plurality of first guide grooves (231). The plurality of first guide grooves (231) are connected to the first air outlet channel (22) and are perpendicular to the extension direction of the first air outlet channel (22).

5. The blow attachment of claim 4, wherein, The corresponding first guide ribs (23) of the plurality of guide members (21) are integrally formed or fixed to each other, and the corresponding first guide grooves (231) of the plurality of guide members (21) are connected along the extension direction of the first guide ribs (23). The plurality of first guide grooves (231) are separated from each other at least on the inlet side of the first air outlet channel (22) in the extension direction of the first air outlet channel (22).

6. The blow attachment of claim 5, wherein, The first guide rib (23) that is integrally formed or fixed to each other has an extension (26) that extends into the first air outlet channel (22).

7. The blow attachment of claim 4, wherein, A second air outlet channel (24) is formed between the air guide component (20) and the housing (10).

8. The blow attachment of claim 7, wherein, The housing (10) has a plurality of second guide ribs (25) fixed on its inner wall. The plurality of second guide ribs (25) are spaced apart to form a plurality of second guide grooves (251). The plurality of second guide grooves (251) are connected to the second air outlet channel (24) and are perpendicular to the extension direction of the second air outlet channel (24).

9. The blow attachment of claim 8, wherein, The plurality of second guide ribs (25) are configured to contact the guide element (21).

10. The blow attachment of claim 8, wherein, The plurality of first guide ribs (23) and the plurality of second guide ribs (25) are configured to be staggered with each other in the extension direction of the first air outlet channel (22).

11. The blower accessory according to claim 1, characterized in that, A buffer cavity (16) is formed within the housing (10), and at least a portion of the buffer cavity (16) contains a care solution component (18), the care solution component (18) having a evaporation portion that contacts the air cavity (13).

12. The blower accessory according to claim 11, characterized in that, The buffer cavity (16) is disposed at the end of the housing (10) along the length direction of the blower attachment (100), or the buffer cavity (16) is disposed around the inner periphery of the housing (10).

13. The blower accessory according to claim 1, characterized in that, The blower attachment (100) includes a plurality of guide columns (30) protruding outward from the outer surface of the guide assembly (20) and / or the housing (10), the guide columns (30) having guide channels (34) communicating with the air cavity (13) and adapted to guide at least a portion of the airflow from the air cavity (13) out of the guide columns (30).

14. A blow-off attachment (100), characterized in that include: The housing (10) has an air inlet (11) and an air outlet (12), and an air cavity (13) between the air inlet (11) and the air outlet (12). A flow guide assembly (20) is provided at the air outlet (12), and the flow guide assembly (20) is adapted to guide at least part of the airflow from the air cavity (13) to flow along the outer surface of the flow guide assembly (20); Multiple guide columns (30) protrude outward from the outer surface of the guide assembly (20) and / or the housing (10), the guide columns (30) having guide channels (34) communicating with the air cavity (13) and adapted to guide at least a portion of the airflow from the air cavity (13) out of the guide columns (30).

15. The blow attachment of claim 14, wherein, The guide column (30) has an insertion section (31) and a curved section (32), wherein the insertion section (31) extends inward through the guide assembly (20) and / or the housing (10) and communicates with the air cavity (13), and the curved section (32) connects to the outer end of the insertion section (31) and the curved section (32) bends toward the airflow direction of the outer surface of the guide assembly (20).

16. The blow attachment of claim 14, wherein, The plurality of guide columns (30) include multiple rows of guide columns (30) arranged along the length direction of the blowing accessory (100), and the tilt angle of the multiple rows of guide columns (30) relative to the height direction of the blowing accessory (100) gradually increases along the airflow direction of the outer surface of the guide assembly (20).

17. The blow attachment of claim 14, wherein, The flow guiding assembly (20) includes a plurality of flow guiding elements (21), a first air outlet channel (22) is formed between adjacent flow guiding elements (21), and a second air outlet channel (24) is formed between the flow guiding assembly (20) and the housing (10).

18. The blow attachment of claim 17, wherein, The bottom end of the guide post (30) protruding from the guide assembly (20) is flush with the bottom surface of the guide member (21).

19. The blow attachment (100) according to any one of claims 14 to 18, characterized in that The housing (10) has a flow guide protrusion (15), wherein the flow guide protrusion (15) is located downstream of the air outlet (12) in the direction of airflow flow along the outer surface of the flow guide assembly (20).

20. A hair dryer, characterized by Includes the blower attachment (100) according to any one of claims 1 to 19.

Images