Hair drier soft wind cover with drainage function

By designing a soft air diffuser with airflow guidance on the hair dryer, the alternation of hot and cold air is achieved, solving the problems of unadjustable airflow and insufficient cooling in traditional hair dryer diffusers, thus improving hairstyle stability and hair health.

CN224250922UActive Publication Date: 2026-05-19SHENZHEN KUNYUN TECHNOLOGY & MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN KUNYUN TECHNOLOGY & MANUFACTURING CO LTD
Filing Date
2025-05-20
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Traditional hair dryers lack flexible airflow adjustment and a mechanism for introducing cool air, resulting in unstable hairstyles and hair damage.

Method used

Design a hair dryer with a gentle airflow shield that combines hot and cold air through a guide cavity to form alternating hot and cold air columns, allowing for the use of both hot and cold air.

Benefits of technology

It improves hairstyle stability, reduces hair damage, enhances styling efficiency and comfort, meets the styling needs of different users, and is suitable for sensitive hair users.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a blower soft wind cover with a drainage function, which can be connected to an air outlet of a blower and comprises a wind cover shell, a flow guide cavity is arranged in the wind cover shell, and an air inlet which is communicated with the flow guide cavity and used for hot air generated by the blower to enter the flow guide cavity is arranged on the rear portion of the wind cover shell. At least two air outlet areas distributed along the circumference are arranged on the front portion of the fan cover shell, a drainage area is arranged between every two adjacent air outlet areas, and at least one drainage window penetrating through the fan cover shell front and back is formed in the drainage area of the fan cover shell. A plurality of first air outlet holes capable of discharging air forwards to drive external air to penetrate through the drainage window from back to front are formed in the air outlet area of the fan cover shell, and when the first air outlet holes output hot air columns, cold air columns which are spaced with the hot air columns are formed at the drainage window. The utility model provides the hair dryer soft air cover with the drainage function, which can lead out hot air and simultaneously drive low-temperature air to form cold and hot air flows, so that the air drying efficiency is improved and hair styling is facilitated.
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Description

Technical Field

[0001] This utility model specifically relates to a hair dryer with a gentle airflow cover. Background Technology

[0002] Hair dryers, as a common hair care tool in daily life, primarily function to use high-speed airflow to blow heated air onto the hair for quick drying, styling, and setting. To improve the effectiveness and versatility of hair dryers, a diffuser, also known as a soft-air diffuser, is usually attached to the air outlet. However, traditional hair dryers and their accompanying diffusers still have some limitations and shortcomings in practical applications.

[0003] First, traditional hair dryers have a relatively simple design, making it difficult to effectively control airflow. Users may need concentrated or diffused airflow in different scenarios. For example, a more concentrated airflow is needed when straightening hair to improve drying efficiency, while a wider and more even airflow distribution is needed when styling curls or blow-drying large areas. Existing hair dryers often cannot flexibly adjust the airflow pattern, resulting in poor adaptability to different hairstyle needs.

[0004] Secondly, traditional hairsprays lack an effective mechanism for introducing cool air. Immediate cooling and setting after hot air styling are crucial for maintaining a stable hairstyle. However, most existing designs fail to effectively incorporate cool airflow, making it difficult to cool down quickly after hot air styling. This can easily lead to unstable hairstyles or hair damage due to prolonged heat exposure. Prolonged exposure to high temperatures can cause protein loss and moisture evaporation, resulting in frizz, split ends, and other problems, negatively impacting hair health.

[0005] This utility model was developed precisely because of the aforementioned shortcomings. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a hair dryer with a gentle airflow cover that can guide hot air while driving low-temperature air to form both hot and cold airflows, thereby improving drying efficiency and facilitating hair styling.

[0007] This utility model is achieved through the following technical solution:

[0008] This utility model provides a gentle air cover for a hair dryer with airflow guidance, which can be connected to the air outlet of a hair dryer. It includes a cover housing with an airflow guiding cavity inside. The rear of the cover housing has an air inlet that communicates with the airflow guiding cavity to allow hot air generated by the hair dryer to enter the airflow guiding cavity. The front of the cover housing has at least two air outlet areas distributed circumferentially, with an airflow guiding area between adjacent air outlet areas. The cover housing has at least one airflow guiding window that runs through the cover housing from front to back in the airflow guiding area. The cover housing has several first air outlet holes in the air outlet areas that can discharge air forward and drive external air from back to front through the airflow guiding window. When the first air outlet holes output a column of hot air, a column of cold air is formed at the airflow guiding window, alternating with the column of hot air.

[0009] As described above, the blower with airflow guide has a main functional area in the middle of the blower housing. The blower housing has a second air outlet in the main functional area that communicates with the airflow guide cavity. The airflow guide windows are opened on the outside of the main functional area and distributed along the circumference. Two adjacent airflow guide windows form a support arm that extends from the main functional area to the surrounding area. The front side of the support arm forms the air outlet area.

[0010] As described above, in the hair dryer with a flow guide, the support arm and the flow guide window are evenly distributed along the circumference and are arranged alternately.

[0011] As described above, the blower with a diffuser has a diffuser housing with an air outlet slot in the air outlet area. The air outlet slot is located at the edge of the air outlet area near the diffuser window.

[0012] As described above, in the hair dryer with airflow guide, both the air outlet area and the airflow guide area of ​​the hair dryer housing gradually curve forward from the center to the surrounding area.

[0013] As described above, the hair dryer with a gentle airflow cover has a plurality of forward-extending first comb teeth on the main functional area for insertion into the hair gaps.

[0014] As described above, the hair dryer with airflow guide has a first airflow channel communicating with the airflow guide cavity in the first comb teeth, and a first airflow outlet communicating with the first airflow channel for airflow outlet on the first comb teeth.

[0015] As described above, the hair dryer with a gentle airflow cover has a plurality of forward-extending second comb teeth in the air outlet area for insertion into the hair gaps.

[0016] As described above, the hair dryer with airflow guide has a second airflow channel communicating with the airflow guide cavity inside the second comb teeth, and a second airflow outlet communicating with the second airflow channel and used for airflow discharge on the second comb teeth.

[0017] As described above, the hair dryer with a gentle breeze cover has several forward-extending second comb teeth in the air outlet area for insertion into the hair gaps. The second comb teeth have a second air guide channel communicating with the air guide cavity, and the second comb teeth have a second air guide outlet communicating with the second air guide channel for air outlet. Furthermore, the second air guide outlet on the second comb teeth is located on the side facing the main functional area, and the first air guide outlet on the first comb teeth is located on the side facing the adjacent air outlet area.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. Highly efficient styling capabilities: By precisely controlling the interaction between hot and cold air columns, the hair is rapidly cooled after being heated, thus helping to set the hairstyle. This rapid heating and instant cooling process helps improve styling efficiency, making the hairstyle more durable and stable.

[0020] 2. Reduce heat damage: Alternating between hot and cold air can effectively reduce damage to hair caused by prolonged high temperatures. Cooling the hair immediately after hot air styling can prevent it from losing moisture or becoming brittle and prone to breakage due to overheating, thus protecting hair health.

[0021] 3. Diverse styling options: By utilizing combinations of airflow at different temperatures, users can choose different styling methods according to their needs, such as straightening or curling. This not only increases the possibilities for styling but also allows users to easily achieve professional-level hairstyling results at home.

[0022] 4. Improved user comfort: The design of the hot and cold air columns makes the airflow gentler, reducing the intense heat blowing directly onto the scalp and improving user comfort, especially suitable for users with sensitive scalps.

[0023] 5. Even drying: As the airflow becomes gentler and more evenly distributed, it helps prevent localized overheating, ensuring that the hair receives balanced heat treatment from root to tip for better drying results. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the front structure of the wind shield of this utility model;

[0025] Figure 2 This is a front view of the wind shield of this utility model;

[0026] Figure 3 yes Figure 2 A cross-sectional view at point AA;

[0027] Figure 4 This is a schematic diagram of the rear structure of the wind shield of this utility model. Detailed Implementation

[0028] The utility model will be further described below with reference to the accompanying drawings:

[0029] The orientations described in this utility model specification, such as "up," "down," "left," "right," "front," and "back," are based on the orientations in the accompanying drawings and are intended to facilitate the description of the relationships between the various components. They do not indicate the unique or absolute positional relationships between the various components, but are merely one embodiment of the utility model and are not a limitation on its implementation.

[0030] This embodiment introduces a diffuser cover for a hair dryer, which can be connected to the air outlet of the hair dryer to concentrate the airflow into a smaller and more focused airflow, or diffuse it into a larger and more diffuse airflow. For example... Figures 1 to 4 As shown, the wind hood includes a wind hood housing 1, which can be a one-piece molded structure or a modular assembly, as long as a guide cavity 11 for guiding airflow is provided inside the wind hood housing 1.

[0031] The rear of the shroud housing 1 has an air inlet 12 communicating with the air guide cavity 11, while the front has at least two circumferentially distributed air outlet areas 101. Between adjacent air outlet areas 101 is a flow guide area 102, and the shroud housing 1 has a through-flow flow guide window 13 in each flow guide area 102. In this embodiment, only one flow guide window 13 is provided in each flow guide area 102; however, to balance air guiding efficiency and product volume control, multiple flow guide windows 13 can also be provided in each flow guide area 102.

[0032] The fan housing 1 has several first air outlet holes 14 in the air outlet area 101. These air outlet holes face forward, thereby drawing external air from back to front through the guide window 13. The principle is described below. Figures 1 to 4 P1 indicates the direction of the hot airflow with a higher temperature generated by the hair dryer, and P2 indicates the direction of the flow of the room temperature air around the fan cover. When the first air outlet 14 blows out a high-speed airflow, according to Bernoulli's principle, the increase in flow velocity will cause the pressure in this area to decrease, thereby forming a negative pressure in front of the air intake window 13, which will drive the surrounding air to enter from the rear and flow out from the front.

[0033] Because the airflow window 13 is located adjacent to the air outlet area 101, when the first air outlet 14 generates a high-speed airflow, a rapid airflow from front to back is also formed at the airflow window 13. This results in the simultaneous formation of a hot air column generated by the hair dryer and a cold air column formed by the surrounding air on the front side of the fan housing 1. This structure not only makes the airflow from the fan housing smoother and gentler, but also achieves the effect of smoothing, straightening, or styling the hair strands while efficiently and quickly drying the hair through thermoplastic deformation and cooling.

[0034] As a more specific structural form, such as Figure 2 As shown, the front of the shroud is divided into a central main functional area 103, and an air outlet area 101 and a flow guide area 102 surrounding it. The shroud housing 1 has a second air outlet 15 on the main functional area 103 that communicates with the flow guide cavity 11. Flow guide windows 13 are distributed circumferentially along the outer side of the main functional area 103, and a support arm 16 is formed between two adjacent flow guide windows 13. One inner end of the support arm 16 connects to the main functional area 103, and the other outer end connects to an annular structure. The front side of the support arm 16 is the air outlet area 101. The support arm 16 and the flow guide windows 13 are evenly distributed circumferentially and spaced apart from each other.

[0035] As one of the preferred options, such as Figure 1 and Figure 2 As shown, in order to enhance the pressure difference between the front and rear sides of the air intake window 13 and further improve its airflow guiding effect, the shroud housing 1 is also provided with an air outlet slot 17 on the air outlet area 101. The air outlet slot 17 is located at the edge of the air outlet area 101 near the air intake window 13.

[0036] As another preferred option, such as Figure 3 As shown, the air outlet area 101 and the air intake area 102 of the fan housing 1 both gradually bend forward from the middle outward to control the airflow diffusion angle, so that the airflow covers a wider area and does not concentrate at one point, which is conducive to drying a large area of ​​hair evenly.

[0037] To further facilitate simultaneous hair combing during the blow-drying process, such as Figures 1 to 3 As shown, the fan housing 1 has several forward-extending first comb teeth 18 on the main functional area 103, which can be inserted into the gaps of the hair. Preferably, the first comb teeth 18 have a first air guide channel 181 communicating with the air guide cavity 11 inside, and a first air guide outlet 182 communicating with the air guide channel at the front end, thereby evenly delivering the hot air in the air guide cavity 11 to the gaps of the hair and improving the drying efficiency.

[0038] Similarly, such as Figures 1 to 3As shown, the fan housing 1 has several forward-extending second comb teeth 19 on the air outlet area 101 for inserting into the gaps in the hair. The second comb teeth 19 have a second air guide channel 191 communicating with the air guide cavity 11 inside, and a second air guide outlet 192 communicating with the air guide channel at its front end.

[0039] As a better implementation method, such as Figures 1 to 3 As shown, the second air outlet 192 on the second comb tooth 19 is located on the side facing the main functional area 103, while the first air outlet 182 on the first comb tooth 18 is located on the side facing the adjacent air outlet area 101. This design allows hot air to be concentrated and directed through the space between the two comb teeth, thereby drying the hair in that area more effectively. When using a diffuser to curl the hair, the concentrated hot air further enhances the heat styling effect.

[0040] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A gentle airflow shield for a hair dryer, which can be connected to the air outlet of a hair dryer, characterized in that: The device includes a fan housing (1), which has a guide cavity (11) inside. The rear of the fan housing (1) is provided with an air inlet (12) that communicates with the guide cavity (11) so that the hot air generated by the blower can enter the guide cavity (11). The front of the fan housing (1) is provided with at least two air outlet areas (101) distributed along the circumference. The adjacent air outlet areas (101) are separated by a flow guide area (102). The fan housing (1) has at least one flow guide window (13) that runs through the fan housing (1) from front to back in the flow guide area (102). The fan housing (1) has several first air outlet holes (14) on the air outlet area (101) that can discharge air forward and drive the external air from back to front through the flow guide window (13). When the first air outlet hole (14) outputs a hot air column, a cold air column is formed at the flow guide window (13) that is alternated with the hot air column.

2. The hair dryer with a flow-guiding cover according to claim 1, characterized in that: The wind hood housing (1) has a main functional area (103) in the middle. The wind hood housing (1) has a second air outlet (15) in the main functional area (103) that communicates with the guide cavity (11). The air intake window (13) is opened on the outside of the main functional area (103) and distributed along the circumference. Two adjacent air intake windows (13) form a support arm (16) extending from the main functional area (103) to the surrounding area. The front side of the support arm (16) forms the air outlet area (101).

3. The hair dryer with a flow-guiding cover according to claim 2, characterized in that: The support arm (16) and the drainage window (13) are evenly distributed along the circumference and are arranged alternately.

4. The hairdryer with a flow-guiding diffuser cover according to any one of claims 1-3, characterized in that: The shroud housing (1) is also provided with an air outlet slot (17) in the air outlet area (101), and the air outlet slot (17) is located at the edge of the air outlet area (101) near the flow window (13).

5. The hairdryer with a flow-guiding diffuser cover according to any one of claims 1-3, characterized in that: The air outlet area (101) and the air diversion area (102) of the hood housing (1) are both gradually curved forward from the center to the surrounding area.

6. The hair dryer with a flow-guiding cover according to claim 2, characterized in that: The wind shield housing (1) has several forward-extending first comb teeth (18) on the main functional area (103) for insertion into the hair gaps.

7. The hair dryer with a flow-guiding cover according to claim 6, characterized in that: The first comb tooth (18) is provided with a first air guide channel (181) communicating with the air guide cavity (11), and the first comb tooth (18) is provided with a first air guide outlet (182) communicating with the first air guide channel (181) and used for air outlet.

8. The hair dryer with a flow-guiding cover according to claim 2, characterized in that: The wind shield housing (1) has several forward-extending second comb teeth (19) in the air outlet area (101) for insertion into the hair gaps.

9. The hair dryer with a flow-guiding cover according to claim 8, characterized in that: The second comb tooth (19) is provided with a second air guide channel (191) that communicates with the air guide cavity (11), and the second comb tooth (19) is provided with a second air guide outlet (192) that communicates with the second air guide channel (191) and is used for air outlet.

10. The hair dryer with a flow-guiding cover according to claim 7, characterized in that: The fan housing (1) has several forward-extending second comb teeth (19) in the air outlet area (101) for insertion into the hair gaps. The second comb teeth (19) have a second air guide channel (191) communicating with the air guide cavity (11). The second comb teeth (19) have a second air guide outlet (192) communicating with the second air guide channel (191) for air outlet. The second air guide outlet (192) on the second comb teeth (19) is opened on the side facing the main functional area (103), and the first air guide outlet (182) on the first comb teeth (18) is opened on the side facing the adjacent air outlet area (101).