A diffuser accessory head for a hairdryer

Abstract

This utility model provides a diffuser accessory head for a hair dryer, including a detachably connected outer shell and an inner shell, which enclose a wind cavity. The outer shell has an air inlet communicating with the wind cavity, and the inner shell has several outwardly extending air guide columns with first air outlets on them. The inner shell also has several second air outlets arranged in a ring array, both of which communicate with the wind cavity. A flow guide is provided at the air inlet within the wind cavity. The flow guide includes several arc-shaped flow guide vanes, each arranged in a spiral pattern, causing the airflow to diffuse spirally within the wind cavity. This not only ensures uniform airflow through the first and second air outlets but also slows down the airflow, facilitating heat concentration within the wind cavity and maintaining a consistently hot state. This allows for more efficient and effective heat utilization, improving styling efficiency and results, and providing a better user experience.

Description

Technical Field

[0001] This utility model belongs to the technical field of hair dryer accessories, specifically relating to a hair dryer diffuser accessory head. Background Technology

[0002] Hair dryer diffusers, through a bowl-shaped or umbrella-shaped design, can transform a concentrated airflow into a dispersed, gentle multi-stream airflow. This avoids the problems of frizzy hair, uneven heating, or difficulty in drying the scalp and hair roots caused by concentrated airflow when using traditional hair dryers. As a result, it has gradually evolved from a simple accessory into an indispensable professional tool in curly hair care procedures. However, existing diffusers still have the following problems: 1. Due to the influence of the air outlet direction, most of the heat is still concentrated in the middle of the diffuser, resulting in weaker airflow at the center edge and uneven airflow overall; 2. Similarly, due to the direct airflow direction of the air outlet, the heat flow rate in the middle is faster, so most of the heat is easily blown out of the diffuser quickly, while less heat is stored inside the diffuser, resulting in heat waste and insufficient utilization. Utility Model Content

[0003] (1) Technical problems to be solved This utility model provides a diffuser accessory head for a hair dryer, which aims to solve the problems of uneven airflow and insufficient heat utilization in the existing technology.

[0004] (2) Technical solution This utility model provides a diffuser accessory head for a hair dryer, including a detachably connected outer shell and an inner shell, which enclose a wind cavity. The outer shell is provided with an air inlet communicating with the wind cavity, and the inner shell is provided with a plurality of outwardly extending air guide columns, each with a first air outlet. The inner shell is also provided with a plurality of second air outlets arranged in a circular array, and both the first and second air outlets are communicating with the wind cavity. The air cavity contains a guide element located at the air inlet. The guide element includes several arc-shaped guide vanes, each of which is arranged in a spiral pattern to allow the airflow to diffuse in a spiral pattern within the air cavity.

[0005] Furthermore, the air guide is coaxially arranged with the air inlet.

[0006] Furthermore, the guide vane is provided with a guide surface at its end along the air outlet direction, and the guide surface is inclined in the same direction as the air outlet direction.

[0007] Furthermore, the inner shell has a groove on the end face facing the outer shell that is adapted to the air guide. One end of the air guide is at least partially connected to or abuts the edge of the air inlet, and the other end is located in the groove and abuts or connects to the groove.

[0008] Furthermore, the edge of the inner shell is provided with an annular abutment surface perpendicular to the axis L, and the side of the abutment surface facing the outer shell is provided with an annular protrusion. The outer wall of the annular protrusion is provided with an arc-shaped groove, and the inner wall of the outer shell is provided with an arc-shaped protrusion that matches the arc-shaped groove.

[0009] Furthermore, the number of air guide columns is 6 and arranged in a circular array, and the first air outlet is located on one side of the air guide column along the axial direction, wherein the air outlet direction of each first air outlet is towards the center of the inner shell.

[0010] Furthermore, the air guide column extends out of the end face of the inner shell.

[0011] Furthermore, the second air outlet includes several circular holes and elongated holes, the elongated holes extending longitudinally in the axial direction and disposed on the outside of the circular holes.

[0012] Furthermore, the distance between two adjacent circular holes is smaller than the distance between two adjacent elongated holes.

[0013] Furthermore, the outer casing has a connector extending from the air inlet away from the inner casing, the connector being used to connect to a hair dryer.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up an outer shell and an inner shell, an air cavity is formed between the outer shell and the inner shell. A guide component is set in the air cavity, which guides the airflow to diffuse in a spiral shape within the air cavity. This not only achieves uniform airflow at each of the first and second air outlets, but also slows down the airflow speed, making it easier to concentrate heat within the air cavity and keep the air cavity in a continuously heated state. This allows for more efficient and effective use of heat, thereby improving the efficiency and effect of the design and providing users with a better experience. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0017] Figure 3 This is a schematic diagram showing the flow state of the airflow under the action of the guide member in this utility model.

[0018] Figure 4 This is a schematic diagram of the overall structure of the guide component of this utility model.

[0019] Figure 5 This is a structural schematic diagram of the inner shell of this utility model from an internal perspective.

[0020] Figure 6 This is a cross-sectional view showing the outer shell and inner shell of this utility model separated.

[0021] Figure 7 This is a schematic diagram showing the airflow from the first and second air outlets of the inner shell of this utility model.

[0022] Figure 8 This is a schematic diagram of the connecting component of this utility model.

[0023] Reference numerals: 1-outer shell, 11-air inlet, 12-arc-shaped protrusion, 2-inner shell, 21-second air outlet, 211-circular hole, 212-elongated hole, 22-groove, 221-second connecting hole, 23-abutting surface, 231-annular protrusion, 232-arc-shaped groove, 3-air cavity, 4-air guide column, 41-first air outlet, 5-flow guide, 51-flow guide plate, 511-guide surface, 52-bracket, 521-first connecting hole, 6-connector, 61-buckle, 62-slot. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] like Figure 1-3 As shown, this utility model provides a hair dryer diffuser accessory head, including a detachably connected outer shell 1 and an inner shell 2. The outer shell 1 and the inner shell 2 enclose a wind cavity 3. The outer shell 1 has an air inlet 11 communicating with the wind cavity 3. The inner shell 2 has a plurality of outwardly extending air guide columns 4, each with a first air outlet 41. The inner shell 2 also has a plurality of second air outlets 21 arranged in a circular array. Both the first air outlets 41 and the second air outlets 21 communicate with the wind cavity 3. Both shells 2 and 3 are "bowl-shaped" structures, which can expand the air outlet area. The inner shell 2 has a recessed portion that is recessed towards the outer shell 1. When the outer shell 1 and the inner shell 2 are connected, the opposing walls of the outer shell 1 and the inner shell 2 will form a "bowl-shaped" space, which forms the air cavity 3. The air guide column 4 and the second air outlet 21 are both located in the recessed portion. When this utility model is connected to a hair dryer, the airflow generated in the hair dryer will enter the air cavity 3 from the air inlet 11 and then be blown out through the first air outlet 41 and the second air outlet 21. To ensure the uniformity of airflow from the first air outlet 41 and the second air outlet 21, a guide element 5 is provided inside the air cavity 3 at the air inlet 11. The guide element 5 is coaxial with the air inlet 11 and includes several arc-shaped guide vanes 51, each arranged spirally around the air cavity 3. This allows the airflow to diffuse spirally within the air cavity 3, ensuring airflow throughout the air cavity 3. This, in turn, ensures that each of the second air outlets 21 can effectively vent air. Especially when using the hot air function, the guide element 5 further helps to prevent heat from being trapped inside the hot air outlet. The accessory head rotates for a longer period of time, thus extending the storage time and maintaining a continuous heat conduction state within the air cavity 3. This not only allows for more efficient use of heat, but also ensures that the airflow, after circulating and rotating, flows out through the first air outlet 41 and the second air outlet 21. The airflow path is detour-like and the flow rate is slowed down, thereby fully utilizing the "hair dryer diffuser" to achieve low-speed flow, uniform heat dissipation, and hair heating. This ensures both airflow and uniform heat distribution, avoiding excessively high local temperatures that could cause burning discomfort. Ultimately, this improves the styling effect and efficiency, providing users with a better user experience.

[0026] Specifically, such as Figure 3 , Figure 5 As shown, the inner shell 2 has a groove 22 on the end face facing the outer shell 1 that is adapted to the guide member 5. One end of the guide member 5 is at least partially connected to or abuts the edge of the air inlet 11, and the other end is located in the groove 22 and abuts or connects to the groove 22. That is, after the outer shell 1 and the inner shell 2 are assembled, the guide member 5 can be fixed in the air cavity 3 under the clamping of the outer shell 1 and the inner shell 2. The groove 22 can limit the guide member 5 and prevent it from deviating. In addition, by abutting the guide member 5 with the groove 22, the end of the guide member 5 away from the air inlet 11 can be closed, so that after the airflow enters the air cavity 3 from the air inlet 11, it can only be discharged in an arc shape from the side opening between two adjacent guide members 51, avoiding the airflow from flowing directly and causing the flow speed to be too fast, accelerating the heat loss and affecting the shape effect.

[0027] Alternatively, the guide element 5 can also be integrally formed with the inner shell 2, that is, the guide element 5 is fixedly connected to the groove 22 and abuts against the air inlet 11.

[0028] Alternatively, the flow guide 5 can be molded separately and then assembled and fixed between the outer shell 1 and the inner shell 2.

[0029] Furthermore, such as Figure 4-5As shown, the flow guide 5 also includes a bracket 52 that is connected to the end of each flow guide 51 near the axis L, so that each flow guide 51 is connected to form a whole, which is convenient for assembly. The bracket 52 is provided with a first connection hole 521, and the groove 22 is provided with a second connection hole 221 corresponding to the first connection hole 521. The first connection hole 521 and the second connection hole 221 are both located on the axis L. The inner shell 2 and the flow guide 5 are screwed together by passing bolts through the second connection hole 221 and the first connection hole 521 in sequence. This can further enhance the stability of the position of the flow guide 5 in the air cavity 3 and prevent the flow guide 5 from rotating due to the airflow.

[0030] Preferably, the guide vane 51 is further provided with a guide surface 511 at its end along the air outlet direction. The guide surface 511 is inclined in the same direction as the air outlet direction. The guide surface 511 has a guiding effect on the airflow, which can make the airflow more concentrated and denser to spirally diffuse around the center point, and avoid the airflow at the center edge from diffusing too much to the surrounding areas, thus weakening the airflow and affecting the overall air outlet effect.

[0031] Furthermore, such as Figure 6 As shown, the inner shell 2 has an annular abutment surface 23 perpendicular to the axis L on its edge. The abutment surface 23 has an annular protrusion 231 on the side facing the outer shell 1. The outer wall of the annular protrusion 231 has an arc-shaped groove 232. The inner wall of the outer shell 1 has an arc-shaped protrusion 12 that matches the arc-shaped groove 232. After assembly, the abutment surface 23 of the inner shell 2 covers the top of the outer shell 1, and the annular protrusion 231 is located inside the outer shell 1 and abuts against the inner wall of the outer shell 1, so that the arc-shaped protrusion 12 is engaged with the arc-shaped groove 232. This allows the outer shell 1 and the inner shell 2 to be fixed by snapping together. The snap-fit ​​connection method is not only simple in structure and aesthetically pleasing, but also more convenient to assemble and disassemble.

[0032] Preferably, the air guide 5 can also be integrally formed with the outer shell 1, or the end of the air guide 5 near the air inlet 11 can be assembled and fixed to the outer shell 1 by means of bonding, snap-fitting or screwing. Thus, when the inner shell 2 is screwed to the air guide 5 by bolts, the stability of the connection between the inner shell 2 and the outer shell 1 can be further enhanced, and the snap-fit ​​joint between the outer shell 1 and the inner shell 2 can be prevented from loosening under the force of airflow, thereby causing the outer shell 1 and the inner shell 2 to separate.

[0033] Furthermore, such as Figure 1 , Figure 7As shown, the air guide columns 4 on the inner shell 2 are arranged in a ring array. In this embodiment, there are 6 air guide columns 4, and the whole structure is a cone. The air guide column 4 has a hollow structure inside. The first air outlet 41 is arranged on one side of the air guide column 4 along the axial direction. The air outlet direction of each first air outlet 41 is set towards the center of the inner shell 2, so that the dispersed hot air can gently wrap the hair from all directions, achieving uniform drying from the outside to the inside. The heat is then covered in the concave part by the "bowl-shaped" inner shell 2, which slows down the rate of heat loss, improves the utilization rate of heat, and thus improves the quality and efficiency of styling.

[0034] It should be noted that the opening area of ​​a single first air outlet 41 inside the air guide column 4 is much larger than the opening area of ​​a single second air outlet 21. This makes it convenient for use, as the air guide column 4 can be inserted into the hair and air can be vented from the roots of the hair to achieve a quick drying effect. It also allows the hair to be wrapped around the air guide column 4 to achieve a curly or straight hairstyle, thus diversifying the functions of this utility model to meet various user needs.

[0035] Preferably, such as Figure 2 As shown, the air guide column 4 extends out of the end face of the inner shell 2, so as to prevent the entire air vent from being blocked when the inner shell 2 is completely covered on the table. At the same time, the part of the air guide column 4 extending out of the end face of the inner shell 2 can also be used as comb teeth to comb hair.

[0036] Furthermore, the second air outlet 21 includes several circular holes 211 and elongated holes 212. The elongated holes 212 extend longitudinally along the axial direction. The circular holes 211 are mainly distributed in an inner ring around the groove 22, while the elongated holes 212 are arranged in an outer ring on the outside of the circular holes 211. The distance between two adjacent circular holes 211 is much smaller than the distance between two adjacent elongated holes 212. Since the airflow at the center is greater than the airflow at the edge, a denser arrangement of smaller-diameter circular holes 211 at the bottom center of the inner shell 2 can ensure that the airflow flowing out from the center of this invention is more comprehensive and balanced. On the other hand, the elongated holes 212 with a larger spacing are arranged in the outer ring distribution area at the edge away from the center. This not only expands the air outlet area at the edge, but also allows the less airflow at the edge to be discharged more concentratedly from the elongated holes 212, thereby further increasing the discharge volume of airflow at the edge.

[0037] Specifically, the air guide column 4 is located in the inner annular distribution area, and the openings of the first air outlet holes 41 of the several air guide columns 4, which are also distributed in an annular pattern, all face the central axis L. The openings of the several elongated holes 212, which are distributed in an annular pattern in the outer annular distribution area, also face the central axis L. Since the groove 22 prevents the airflow entering the air inlet 11 from flowing directly into the inner shell 2, the airflow near the center of the groove 22 in the inner shell 2 will be very low. Therefore, the fact that the openings of the first air outlet holes 41 and the elongated holes 212 are both oriented towards the central axis L can solve the problem of low airflow at the center. At the same time, the openings of the elongated holes 212 are distributed in an annular depth, which, together with the relatively dense small-diameter circular holes 211 at the bottom of the middle part of the inner shell 2, allows the airflow in the inner shell 2 to be fully and evenly distributed, thereby allowing the airflow to transfer heat and making the heat fully and evenly distributed in the inner shell 2.

[0038] Preferably, such as Figure 8 As shown, the outer shell 1 extends from the air inlet 11 in a direction away from the inner shell 2 and is provided with a connector 6. The connector 6 is used to connect with the hair dryer. The connector 6 is provided with a plurality of buckles 61 and slots 62. The buckles 61 and the slots 62 are respectively provided on the inner and outer walls of the connector 6. Hair dryers on the market usually have a snap-fit ​​structure corresponding to the buckles 61 or slots 62. The present invention can be snapped and fixed to the hair dryer through the buckles 61 or slots 62 of the connector 6, which is convenient for connecting the hair dryer with different accessory heads. This is a conventional method in the prior art, so it will not be described in detail here. In some embodiments, the connector 6 may also be provided with a magnetic suction element to facilitate a fixed connection with a hair dryer connected via a magnetic suction structure.

[0039] The working principle of this utility model is explained in detail below: In use, this utility model is connected and fixed to the air outlet of the hair dryer, so that the airflow enters the air cavity 3 from the air inlet 11. At this time, under the action of the guide 5, the airflow will spread in a spiral shape in the air cavity 3 along the arc-shaped channel formed between the two adjacent guide plates 51, so that the heat fills the air cavity 3. Then, the airflow will be discharged through the first air outlet 41 and the second air outlet 21 respectively. Under the action of the inner shell 2 with the "bowl" structure, the direction of the airflow will be sprayed towards the center, so that the airflow is more concentrated, more sufficient and more evenly applied to the hair.

[0040] The innovation of this utility model lies in the arrangement of the outer shell and the inner shell, which forms a wind cavity between them. A guide component is installed in the wind cavity, which guides the airflow to diffuse in a spiral shape within the wind cavity. This not only achieves uniform airflow at each of the first and second air outlets, but also slows down the airflow speed, making it easier to concentrate heat within the wind cavity and maintain a continuously heated state. This allows for more efficient and effective utilization of heat, thereby improving the efficiency and effect of the shaping process and providing users with a better experience.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A diffuser head for a hair dryer, characterized in that, The device includes a detachable outer shell (1) and an inner shell (2), which enclose a wind cavity (3). The outer shell (1) is provided with an air inlet (11) that communicates with the wind cavity (3). The inner shell (2) is provided with several outwardly extending air guide columns (4), and the air guide columns (4) are provided with a first air outlet (41). The inner shell (2) is also provided with several second air outlets (21) arranged in a ring array. The first air outlet (41) and the second air outlet (21) are both connected to the wind cavity (3). The air cavity (3) is provided with a guide (5) at the air inlet (11). The guide (5) includes several arc-shaped guide vanes (51). Each guide vane (51) is arranged in a spiral shape, so that the airflow diffuses in a spiral shape in the air cavity (3).

2. An electric blower diffuser attachment head according to claim 1, wherein, The air guide (5) is coaxially arranged with the air inlet (11).

3. An electric blower diffuser attachment head according to claim 2, wherein, The guide vane (51) is further provided with a guide surface (511) at the end along the air outlet direction, and the guide surface (511) is inclined in the same direction as the air outlet direction.

4. The diffuser attachment head for an electric hair dryer according to claim 1, wherein The inner shell (2) has a groove (22) on the end face facing the outer shell (1) that is adapted to the guide member (5). One end of the guide member (5) is at least partially connected to or abuts the edge of the air inlet (11), and the other end is located in the groove (22) and abuts or connects to the groove (22).

5. The hair dryer diffuser accessory head according to claim 4, characterized in that, The inner shell (2) has an annular abutment surface (23) perpendicular to the axis L at its edge. The abutment surface (23) has an annular protrusion (231) on the side facing the outer shell (1). The outer wall of the annular protrusion (231) has an arc groove (232). The inner wall of the outer shell (1) has an arc protrusion (12) that matches the arc groove (232).

6. The diffuser attachment head for an electric hair dryer according to claim 1, wherein The number of air guide columns (4) is 6 and arranged in a ring array. The first air outlet (41) is located on one side of the air guide column (4) along the axial direction. The air outlet direction of each first air outlet (41) is towards the center of the inner shell (2).

7. An electric blower diffuser attachment head according to claim 6, wherein, The air guide column (4) extends out of the end face of the inner shell (2).

8. The hair dryer diffuser accessory head according to claim 1, characterized in that, The second air outlet (21) includes several circular holes (211) and elongated holes (212). The elongated holes (212) extend longitudinally in the axial direction and are located on the outside of the circular holes (211).

9. An electric blower diffuser attachment head according to claim 8, wherein, The distance between two adjacent circular holes (211) is less than the distance between two adjacent elongated holes (212).

10. The hair dryer diffuser accessory head according to claim 1, characterized in that, The outer shell (1) has a connector (6) extending away from the inner shell (2) at the air inlet (11), the connector (6) being used to connect to a hair dryer.

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