Air nozzle of hair drier

Abstract

The utility model provides a blower tuyere, which relates to blower accessories and comprises an air outlet channel surrounding the center of the tuyere, a plurality of air guide teeth are arranged on the outer side of the air outlet channel in a surrounding manner, each air guide tooth comprises a first windward side and a first leeward side, and the first windward side and the first leeward side between the adjacent air guide teeth form a tooth groove. The first windward face is obliquely arranged relative to the air outlet face of the air outlet channel, a plurality of flow guide ribs are arranged in the air outlet channel and divide the air outlet channel into a plurality of sub-channels, and the flow guide ribs are obliquely arranged relative to the air outlet face of the air outlet channel. The blower tuyere is used for solving the technical problem that when an existing soft tuyere is high in air outlet speed, a large amount of airflow is directly blown out along the inner side walls of the air guide teeth without passing through the tooth grooves, and consequently the air guide teeth cannot fully play a role in softening the airflow.

Description

Technical Field

[0001] The utility model relates to the technical field of hair dryer accessories, in particular to a hair dryer nozzle. Background Art

[0002] The nozzles of common high-speed hair dryers are often equipped with slit-shaped air outlet channels. The slit-shaped air outlet channel has a small air outlet area, which makes the wind speed at the nozzle outlet higher. In order to make the airflow softer and the temperature lower, so that it can be closer to the scalp to create a fluffy shape, a soft nozzle is designed.

[0003] For example, in the prior art CN202011044084.0, the soft wind nozzle structure includes wind dispersing parts spaced apart in the circumferential direction of the air outlet, so that when the wind in the air guide cavity flows to the wind dispersing parts, one stream of wind will be blocked by the wind dispersing parts, and another stream of wind will flow out from the gap between the wind dispersing parts, thereby forming a pressure difference between the two streams of wind, thereby preventing the wind from gathering and allowing the wind to diffuse to all sides, eventually forming a large area of ​​soft wind, thereby improving the overall drying speed of the hair and preventing the hair from being blown messy.

[0004] In order to facilitate the installation of the soft air nozzle, the prior art installs a magnetic suction component on the soft air nozzle. For example, the prior art CN202210467804.7 discloses a soft air nozzle in the specification, and the above-mentioned soft air nozzle includes: a third magnetic part; a soft air nozzle body arranged on the third magnetic part, and a third channel connecting the air outlet of the hair dryer and the outside world is formed in the soft air nozzle body, and the soft air nozzle body gradually expands in a trumpet shape toward the side away from the air outlet, and the third channel is circumferentially arranged with multiple wind dispersion teeth on the side of the soft air nozzle body away from the air outlet.

[0005] However, in actual use, it was found that the airflow generated by the hair dryer is discharged from the air outlet of the nozzle. When the wind speed is high, the airflow first moves along the air outlet direction until the wind speed decreases and the airflow begins to diffuse. In addition, the air scattering teeth are arranged on the outside of the air outlet, which makes it difficult for the airflow to blow to the gap between the air scattering teeth or the air guide teeth before diffusion, and it is not easy to achieve a softening airflow effect.

[0006] Even in some cases of relatively high wind speeds, with the wind nozzle of the prior art, the airflow flows inside the scattering teeth, causing the pressure inside the scattering teeth to be lower than the pressure outside. As a result, the airflow outside the scattering teeth tends to converge toward the inside of the scattering teeth, and it may be difficult to achieve a soft wind effect at high wind speeds. Utility Model Content

[0007] The utility model aims to provide a hair dryer nozzle to solve the technical problem that when the air outlet speed of the existing soft air nozzle is high, a large amount of air flow does not pass through the tooth groove but is directly blown out along the inner wall of the air guide tooth, resulting in the air guide tooth being unable to fully play the role of softening the air flow.

[0008] An embodiment of the present application provides a hair dryer nozzle, including an air outlet channel surrounding the center of the air nozzle, a plurality of air guide teeth are arranged around the outside of the air outlet channel, each air guide tooth includes a first windward surface and a first leeward surface, the first windward surface and the first leeward surface between adjacent air guide teeth form a tooth groove, the above-mentioned first windward surface is inclined relative to the air outlet surface of the air outlet channel, a plurality of guide ribs are arranged in the air outlet channel, the plurality of guide ribs divide the air outlet channel into a plurality of sub-channels, and the guide ribs are inclined relative to the air outlet surface of the air outlet channel.

[0009] In some embodiments of the present invention, the first leeward surface is inclined relative to the wind outlet surface of the wind outlet channel, and the slope of the first windward surface is smaller than the slope of the first leeward surface.

[0010] In some embodiments of the present invention, the inner side wall of the air guide tooth is inclined outward.

[0011] In some embodiments of the present invention, the first windward surface gradually narrows from the bottom to the top.

[0012] In some embodiments of the utility model, a guide ring is further included on the outside of the air guide tooth, the guide ring is inclined outward, and the upper edge of the guide ring is higher than the bottom end of the tooth groove.

[0013] In some embodiments of the present invention, the upper edge of the guide ring is lower than the top of the air guide tooth.

[0014] In some embodiments of the present invention, the angle between the second windward surface of the guide rib and the wind outlet surface of the wind outlet channel is α, 45°≤α≤60°.

[0015] In some embodiments of the utility model, a cover plate is provided at the center of the air nozzle, the air outlet channel is located between the cover plate and the air guide teeth, and the center of the cover plate protrudes outwards.

[0016] In some embodiments of the present invention, the guide rib is connected to the cover plate.

[0017] In some embodiments of the present invention, a fan is disposed at the center of the air nozzle.

[0018] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0019] A plurality of guide ribs are arranged in the air outlet channel, and the plurality of guide ribs divide the air outlet channel into a plurality of sub-channels, and the guide ribs are arranged at an angle relative to the air outlet surface of the air outlet channel. When the airflow is blown out from the air outlet channel, the inclined guide ribs change the direction of the airflow, causing the airflow to deflect or rotate, and the airflow is changed from being blown out in a straight line from the air outlet channel to being blown out in a deflected manner, so as to achieve a more uniform distribution over the entire air outlet area; the guide ribs also guide the airflow into the tooth grooves of the air guide teeth, thereby increasing the airflow flow at the tooth grooves; and the airflow contacts the first windward surface in a rotating or deflected manner, thereby preventing the airflow from flowing out along the inner wall of the air guide teeth without passing through the tooth grooves, thereby increasing the soft wind effect of the air nozzle.

[0020] After the airflow enters the tooth groove, the inclined first windward surface in the tooth groove guides the flow direction of part of the airflow again, promotes the mixing of the airflow with the surrounding air, and improves the softening effect and coverage of the airflow. The airflow guided by the guide ribs also flows through both sides of the wind guide teeth, and the wind guide teeth disperse the airflow into multiple small airflows, further reducing the airflow speed and evenly distributing the airflow, thereby achieving a better soft wind effect. In addition, in this embodiment, the first windward surface is inclined to prevent the airflow from vertically hitting the first windward surface, reduce unstable airflow, and also reduce the aerodynamic noise of the nozzle, ensuring the comfort of the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the air nozzle of an embodiment of the present application.

[0022] Figure 2 It is a structural schematic diagram of dividing the air outlet channel into multiple sub-channels in an embodiment of the present application.

[0023] Figure 3 It is a schematic structural diagram of the positional relationship among the guide ring, diffuser and air guide teeth of an embodiment of the present application.

[0024] Figure 4 It is a schematic diagram of the angle α between the wind outlet surface and the second windward surface in an embodiment of the present application.

[0025] Figure 5 It is a schematic diagram of the structure of the cover plate and the fan in the embodiment of the present application.

[0026] Icon: 1-air outlet channel, 100-sub-channel, 101-air outlet surface, 2-guide ribs, 201-second windward surface, 3-air guide teeth, 300-tooth grooves, 301-first windward surface, 302-first leeward surface, 4-guide ring, 400-diffuser, 5-cover plate, 6-fan. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In actual use, when the hair dryer generates airflow, the airflow is first sucked in from the tail of the motor, then passes through the circuit board (to dissipate heat for the components on the circuit board), and then passes through the heating component. There are also components such as thermostats and fuses inside the heating component, which causes different resistances when the airflow passes through the heating wire, thereby causing uneven heating and affecting the user experience. However, the initial wind speed of the existing nozzle is relatively high when the air is discharged. The high-speed airflow is difficult to diffuse immediately due to its large inertia, and the airflow is difficult to contact the wind dispersion structure (such as the wind dispersion teeth), making it difficult for the existing soft wind nozzle to produce a soft wind effect. The problem of high and concentrated air outlet temperature is further aggravated, which can easily cause burns to the user. Especially when consumers blow their hair themselves, due to the arm length and based on labor-saving considerations, the hair dryer is often closer to the user. The airflow blown out by the existing nozzle has no time to diffuse before it blows to the consumer, which can easily burn the consumer and mess up the hair.

[0029] like Figure 1-Figure 5 As shown, in the embodiment of the utility model, an air outlet channel 1 surrounding the center of the air nozzle is included, and the annular air duct realizes uniform air outlet. A plurality of guide ribs 2 are arranged in the air outlet channel 1, and the plurality of guide ribs 2 divide the air outlet channel 1 into a plurality of sub-channels 100, and the guide ribs 2 are arranged obliquely relative to the air outlet surface 101 of the air outlet channel 1. When the airflow is blown out from the air outlet channel 1, the inclined guide ribs 2 change the direction of the airflow, so that the airflow is offset or rotated, and the airflow is transformed from being blown out in a straight line from the air outlet channel 1 to being blown out in a deflected manner, so as to achieve a more uniform distribution to the entire air outlet area; the guide ribs 2 simultaneously guide the airflow into the tooth groove 300 of the air guide tooth 3, thereby increasing the airflow flow at the tooth groove 300; and the airflow contacts the first windward surface 301 in a rotating or deflected manner, thereby preventing the airflow from flowing out along the inner wall of the air guide tooth 3 without passing through the tooth groove 300, thereby improving the soft wind effect of the air nozzle. After the airflow enters the tooth groove 300, the inclined first windward surface 301 in the tooth groove 300 guides the flow direction of part of the airflow again, promotes the mixing of the airflow with the surrounding air, and improves the softening effect and coverage of the airflow. The airflow guided by the guide ribs 2 also flows through the two sides of the wind guide teeth 3, and the wind guide teeth 3 disperse the airflow into multiple small airflows, further reducing the airflow speed and the uniform distribution of the airflow, thereby achieving a better soft wind effect. In addition, in this embodiment, the first windward surface 301 is inclined to prevent the airflow from vertically hitting the first windward surface 301, reducing unstable airflow, and also reducing the aerodynamic noise of the wind nozzle, ensuring the comfort of the wind nozzle.

[0030] During use, it was unexpectedly discovered that the inclined guide ribs 2 can reduce unexpected airflow by guiding the direction and rotation of the airflow, making the airflow more stable and smooth. The stable airflow not only improves the comfort of consumers, but also reduces noise (compared to the existing soft wind nozzles), and enhances the user experience of the hair dryer. In particular, the inclined guide ribs 2 combined with the inclined first windward surface 301 can achieve more accurate airflow guidance according to the set inclination angle or posture, as well as different numbers and arrangements, thereby further reducing unexpected airflow, achieving the adjustment of the airflow flow path and the optimization of noise.

[0031] In some embodiments, the number of the guide ribs 2 may be greater than 3. The number of the guide ribs 2 affects the number of sub-channels 100 and the area of ​​the outlet surface 101. The more the guide ribs 2, the more the number of sub-channels 100 increases and the area of ​​the outlet surface 101 of the sub-channel 100 decreases, which can better divide the airflow and guide the airflow more accurately, increase the stability of the airflow, and reduce the outlet wind speed. However, if the number of the guide ribs 2 is too large, the area of ​​the outlet surface 101 of the sub-channel 100 is too small, resulting in too small airflow velocity, which affects the hair drying efficiency. On the other hand, the fewer the number of the guide ribs 2, the larger the area of ​​the outlet surface 101 of the sub-channel 100, the weaker the airflow is guided by the guide ribs 2, and the airflow velocity can be guaranteed. However, if the number of the guide ribs 2 is too small, the guiding effect on the airflow is limited, and the airflow may be more concentrated and strong; at the same time, it is more likely to generate turbulence and eddy currents to increase noise. In actual use, for example, for an outlet channel 1 with an outer diameter of 40 mm, 6 guide ribs 2 may be preferably provided.

[0032] In some embodiments, the guide rib 2 can be tilted by at least tilting the windward surface of the guide rib 2 (hereinafter referred to as the second windward surface 201) and tilting the entire guide rib 2 (the windward surface and the leeward surface). The second windward surface 201 of the guide rib 2 plays a leading role in changing the direction of the airflow. Figure 4 As shown, the angle between the second windward surface 201 of the guide rib 2 and the outlet surface 101 of the air outlet channel 1 is α, 45°<α<90°. If the angle is less than 45°, the airflow will encounter greater resistance, which will excessively weaken the wind speed and air volume, affecting the hair drying efficiency. In actual use, α is preferably 45° to 60°, so as to balance the hair drying efficiency and comfort. During implementation, the guide rib 2 can also be tilted clockwise or counterclockwise.

[0033] In some embodiments, the guide rib 2 may be bent toward the outflow direction of the airflow, wherein the middle of the guide rib 2 is close to the outflow direction of the airflow, and the two ends of the guide rib 2 are away from the outflow direction of the airflow. The bent guide rib 2 is conducive to reducing the unexpected airflow, thereby reducing the noise of the air nozzle.

[0034] In some embodiments, the guide rib 2 may be disposed at the end of the air outlet channel 1 .

[0035] In some embodiments, the air outlet surface 101 of the air outlet channel 1 may be a vertical plane of the air outlet direction of the airflow in the air outlet channel 1 before being deflected by the guide rib 2. For example, when the user uses the hair dryer horizontally, such as drying the hair near the ears, the air outlet channel 1 before the guide rib 2 is horizontally directed to the vicinity of the ears, and the air outlet surface 101 is a vertical plane. For example, when the user uses the hair dryer vertically, such as drying the hair on the top of the head, the air outlet channel 1 before the guide rib 2 is vertically directed to the top of the head, and the air outlet surface 101 is a horizontal plane.

[0036] In some implementations of this embodiment, after the airflow is deflected by the guide rib 2 and guided to the air guide tooth 3, the air guide tooth 3 can guide the airflow through at least three paths: Path 1, the first windward surface 301 of the air guide tooth 3 guides the airflow, which increases the mixing of the airflow and the air (which has been introduced above and will not be repeated here); Path 2, the air guide tooth 3 divides the airflow, and part of the airflow first moves along the inner wall of the air guide tooth 3 and then moves to the outside of the air guide tooth 3; Path 3, the air guide tooth 3 divides the airflow, and part of the airflow flows outside the air guide tooth 3. For airflow path 1, the slope of the windward surface needs to be smaller to reduce the resistance of guiding the airflow; for airflow path 2, the slope of the leeward surface needs to be larger to facilitate the flow of the inner airflow to the outside. In the prior art, the windward and leeward surfaces of the scattered wind teeth have the same slope. For the special airflow path of this embodiment, the scattered wind tooth structure of the prior art cannot meet the requirements of the special airflow path of this embodiment. Therefore, in some embodiments, the circumferential direction of the air guide tooth 3 further includes a first leeward surface 302 , and relative to the wind outlet surface 101 of the air outlet channel 1 , the slope of the first windward surface 301 is smaller than the slope of the first leeward surface 302 .

[0037] In the above embodiment, the slope of the first windward surface 301 is smaller than the slope of the first leeward surface 302, which means that the first windward surface 301 is relatively flat, and a smooth transition is provided between the first windward surface 301 and the wind outlet surface 101, which can reduce the resistance of the first windward surface 301 to guide the airflow, and also make it less likely for the airflow to generate unstable airflow when passing through the guide teeth.

[0038] The slope of the first windward surface 301 is smaller than the slope of the first leeward surface 302, which means that the first leeward surface 302 is steeper. When the airflow on the inner side of the guide tooth flows through the first leeward surface 302 with a larger slope, the airflow is easier to separate and forms a low-pressure area on the outer side of the guide tooth, which is more conducive to the airflow in the airflow path 2 and the airflow path 3 flowing to the outer side of the guide tooth, thereby achieving a softer and more uniform air outlet effect.

[0039] In some implementations of this embodiment, the inner side wall of the air guide tooth 3 is inclined outward.

[0040] In the above embodiment, the inner wall of the above-mentioned air guide tooth 3 (close to the air outlet channel 1) is tilted outward, so that the flow space of the airflow is increased. After the airflow is discharged from the relatively narrow sub-channel 100, it enters a wider space, causing the airflow speed to decrease, and helping the airflow to diffuse and expand along the side of the air guide tooth 3 close to the air outlet, thereby achieving a better soft wind effect.

[0041] The airflow is affected by the initial speed and direction when the air is discharged. The closer to the air outlet channel 1, the greater the wind pressure. The wind pressure at the bottom of the first windward surface 301 is greater than the wind pressure at the top of the first windward surface 301. In some implementations of this embodiment, the first windward surface 301 gradually narrows from the bottom to the top. The first windward surface 301 is wider at the bottom, which can provide a larger windward area, so that the contact force of the airflow is more dispersed, reducing the generation of unstable airflow. The first windward surface 301 gradually converges from the bottom to the top, so that the airflow can be fully mixed with the nearby airflow after flowing through the first windward surface 301 to form a soft and uniform airflow.

[0042] In some implementations of this embodiment, a guide ring 4 is further included, which is arranged outside the air guide tooth 3 . The guide ring 4 is inclined outward, and the upper edge of the guide ring 4 is higher than the bottom end of the tooth groove 300 .

[0043] In the above embodiment, the guide ring 4 is arranged around the outside of the air guide teeth 3, and the guide ring 4 is inclined outward to form a diffusion port 400 with the inner wall of the guide ring 4. When the airflow flows to the outside of the air guide teeth 3, the airflow flows outward along the inner wall of the guide ring 4, ensuring that the airflow diffused outward still blows to the user. And because the diffusion port 400 is inclined outward, the inner diameter continues to increase, which is conducive to the diffusion of the airflow, and finally forms a larger area and soft and uniform airflow.

[0044] In some embodiments, the upper edge of the guide ring 4 is lower than the top of the air guide teeth 3. Through the cooperation of the air guide teeth 3 and the guide ribs 2, the temperature of the hot air flow generated by the hair dryer is uniform and gentle, which makes it convenient for the user to insert the air guide teeth 3 into the hair for drying, thereby improving the hair drying efficiency.

[0045] In the above embodiment, the air guide teeth 3 are arranged obliquely close to the outer side wall of the guide ring 4, so as to further enhance the diffusion effect of the airflow.

[0046] In actual use, the shape of each air guide tooth 3 can be completely consistent, and the spacing between adjacent air guide teeth 3 is consistent, ensuring that the air outlet of the air nozzle is consistent and uniform. For example, in actual use, each air guide tooth 3 includes an inclined first windward surface 301 and a first leeward surface 302, the angle between the first leeward surface 302 and the wind outlet surface 101 can be 60° to 68°, the angle between the first leeward surface 302 and the wind outlet surface 101 can be 80° to 68°, the angle between the outer wall of each air guide tooth 3 and the wind outlet surface 101 can be 75° to 85°, the angle between the inner wall of each air guide tooth 3 and the wind outlet surface 101 can be 70° to 80°, the angle between the outer wall of the air guide tooth 3 and the wind outlet surface 101 is greater than the angle between the inner wall of the air guide tooth 3 and the wind outlet surface 101, and the spacing between adjacent air guide teeth 3 is consistent and the shape of the tooth groove 300 is consistent.

[0047] In actual use, different spacings may be used between adjacent air guide teeth 3, and / or the first leeward surfaces 302 of some air guide teeth 3 may be perpendicular to the wind outlet surface 101. For example, in actual use, the air guide teeth 3 with inclined first leeward surfaces 302 and the air guide teeth 3 with perpendicular first leeward surfaces 302 are used alternately, thereby slightly increasing the imbalance of the air guide teeth 3 in guiding the airflow.

[0048] In some implementations of this embodiment, adjacent guide ribs 2 are separated by at least one first windward surface 301. This balances the arrangement between the guide ribs 2 and the first windward surface 301, ensuring that the airflow can be gradually guided by the guide ribs 2 and the first windward surface 301. On the other hand, it avoids uneven number and arrangement of the guide ribs 2 and the first windward surface 301, which causes excessive wind pressure on part of the first windward surface 301 and affects the guiding effect.

[0049] In some implementations, the air nozzle of this embodiment may be designed as an integral unit with the hair dryer, that is, the air nozzle and the hair dryer are not detachable. Alternatively, the air nozzle of this embodiment may be detachably connected to the hair dryer, for example, by connecting the air nozzle and the hair dryer in a magnetic or snap-on manner. In some implementations of this embodiment, a cover plate 5 is provided at the center of the air nozzle, and the air outlet channel 1 is located between the cover plate 5 and the air guide teeth 3, wherein the cover plate 5 may be provided with components for connecting or cooperating with the hair dryer, such as magnets, iron blocks or sensors. The air outlet channel 1 is located between the cover plate 5 and the air guide teeth 3, and may be connected to the cover plate 5 via the guide ribs 2. The center of the cover plate 5 protrudes outward, so that the outer contour of the cover plate 5 gradually shrinks outward, thereby facilitating the diffusion of airflow and avoiding the generation of airflow beyond expectations.

[0050] In some implementations of this embodiment, a fan 6 is provided at the center of the air nozzle.

[0051] In the above embodiment, a bearing is arranged at the center of the nozzle, and the fan 6 is fixed on the bearing. The airflow blown out from the air outlet channel 1 drives the fan 6 to rotate, and the rotation of the fan 6 accelerates the mixing of the airflow and the external air, making the airflow more uniform.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hair dryer nozzle, comprising an air outlet channel surrounding the center of the nozzle, characterized in that: A plurality of air guide teeth are arranged around the outside of the air outlet channel, each air guide tooth comprises a first windward surface and a first leeward surface, the first windward surface and the first leeward surface between adjacent air guide teeth form a tooth groove, and the first windward surface is arranged obliquely relative to the air outlet surface of the air outlet channel; A plurality of guide ribs are arranged in the air outlet channel, the plurality of guide ribs divide the air outlet channel into a plurality of sub-channels, and the guide ribs are arranged obliquely relative to the air outlet surface of the air outlet channel.

2. A hair dryer nozzle according to claim 1, characterized in that: The first leeward surface is inclined relative to the wind outlet surface of the wind outlet channel, and the slope of the first windward surface is smaller than the slope of the first leeward surface.

3. The hair dryer nozzle according to claim 1, characterized in that: The inner side wall of the air guide tooth is arranged to be inclined outward.

4. The hair dryer nozzle according to claim 1, characterized in that: The first windward surface gradually narrows from the bottom to the top.

5. The hair dryer nozzle according to claim 1, characterized in that: It also includes a guide ring arranged on the outside of the air guide tooth, the guide ring is inclined outward, and the upper edge of the guide ring is higher than the bottom end of the tooth groove.

6. A hair dryer nozzle according to claim 5, characterized in that: The upper edge of the guide ring is lower than the top of the air guide teeth.

7. The hair dryer nozzle according to claim 1, characterized in that: The included angle between the second windward surface of the guide rib and the wind outlet surface of the wind outlet channel is α, 45°≤α≤60°.

8. The hair dryer nozzle according to claim 1, characterized in that: A cover plate is provided at the center of the air nozzle, the air outlet channel is located between the cover plate and the air guide teeth, and the center of the cover plate protrudes outwards.

9. The hair dryer nozzle according to claim 8, characterized in that: The guide rib is connected to the cover plate.

10. The hair dryer nozzle according to claim 1, characterized in that: A fan is arranged at the center of the air nozzle.

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