Air outlet structure and hair dryer

Abstract

The application provides an air outlet structure and an electric hair dryer. The air outlet structure comprises an air outlet baffle arranged at an air outlet, a plurality of annular air vents are arranged on the air outlet baffle, and the layout structure of the plurality of air vents is that the air vents on the outside surround the air vents on the inside. An opening and closing component is arranged at each air vent, and each opening and closing component can independently open or close the corresponding air vent. According to the technical scheme of the application, the corresponding opening and closing component can be used to selectively open or close the corresponding air vent, so that the air vent area can be adjusted to change the air speed, thereby selectively obtaining high-speed airflow or low-speed soft airflow. In addition, the distribution of airflow flow, flow speed and airflow flow is different in the radial direction of the plane where the air outlet is located, so the user can also select to open or close the corresponding air vent in the radial direction, thereby further obtaining more diverse use experience.

Description

Technical Field

[0001] This invention relates to the field of hair dryer technology, and particularly to an air outlet structure and a hair dryer. Background Technology

[0002] The air outlet structure of existing hair dryers is relatively simple in both design and function. For example, some hair dryers have a circular air outlet, while others have a ring-shaped air outlet. The airflow effect of the two types of outlets is slightly different, but each type of outlet, viewed individually, is too simple in structure, resulting in very limited functionality. Users cannot obtain a variety of user experiences based on different airflow effects from the same hair dryer. Therefore, the air outlet structure of hair dryers urgently needs improvement. Summary of the Invention

[0003] To address the problem that the air outlet structure of existing hair dryers is too simple in design, resulting in very limited functionality, this invention proposes an air outlet structure and a hair dryer.

[0004] In a first aspect, the present invention proposes an air outlet structure, including an air outlet baffle disposed at an air outlet, wherein the air outlet baffle is provided with a plurality of annular ventilation openings, and the arrangement of the plurality of ventilation openings is such that the outer ventilation opening surrounds the inner ventilation opening.

[0005] Each of the ventilation openings is equipped with an opening and closing component, and each opening and closing component can independently open or close the corresponding ventilation opening.

[0006] In one embodiment, the vent is annular, and the arrangement of the plurality of vents is a concentric circle arrangement with the center of the air outlet as the center.

[0007] In one embodiment, the opening and closing assembly includes a plurality of baffles arranged sequentially along the annular path of the vent, and the baffles are respectively provided with rotating shafts on opposite sides, and the rotating shafts on both sides are respectively fitted into mounting holes on the inner and outer side walls of the vent.

[0008] The multiple wind deflectors can be rotated to join together to close the vent, and can also be rotated to separate from each other to open the vent.

[0009] In one embodiment, it further includes a first limiting component and a second limiting component with different structures, and the wind deflector at each of the vents is equipped with any one of the limiting components;

[0010] Wherein, when the wind deflector rotates to open or close the vent, it can trigger the first limiting component, so as to maintain relative stillness with the air outlet deflector through the first limiting component; and

[0011] When the baffle is rotated to open or close the vent, it can trigger the second limiting component, so that the second limiting component can keep the vent relatively stationary with the air outlet baffle when the vent is closed, and swing with the airflow within a preset angle range when the vent is opened.

[0012] In one embodiment, the first limiting component includes a plurality of first limiting grooves distributed circumferentially on the outer peripheral surface of the rotating shaft and at least one first limiting protrusion distributed circumferentially on the wall of the mounting hole.

[0013] When the wind deflector is rotated to open or close the ventilation opening, the corresponding first limiting groove engages with the corresponding first limiting protrusion.

[0014] In one embodiment, a plurality of first limiting grooves distributed circumferentially include two end grooves located at two orthogonal positions and at least one intermediate groove distributed between the two end grooves. The end grooves correspond to the complete closure or complete opening of the vent, and different intermediate grooves correspond to different opening degrees when the vent is open.

[0015] In one embodiment, the second limiting component includes a limiting block eccentrically disposed on one side of the rotating shaft portion and a limiting member disposed on the air outlet baffle. The limiting block is fixedly connected to the rotating shaft portion, and the limiting member has a second limiting groove for accommodating the limiting block.

[0016] The rotating shaft can drive the limiting block to move along an arc trajectory within the second limiting groove to the first end and the second end of the second limiting groove. The first end is provided with a limiting area that can keep the limiting block relatively stationary, and the second end is provided with a swinging area that allows the limiting block to swing.

[0017] In one embodiment, a second limiting protrusion is provided at a position closer to the first end than the second end of the second limiting groove, and the second limiting protrusion and the end groove wall of the first end define a limiting area with the same size as the limiting block.

[0018] In one embodiment, a third limiting protrusion is provided at a position closer to the second end than the first end of the second limiting groove, and the third limiting protrusion defines the swing area between itself and the end groove wall of the second end.

[0019] In one embodiment, the limiting member has the same annular structure as the vent, and the limiting member has a plurality of second limiting grooves distributed circumferentially along the annulus, and the plurality of second limiting grooves correspond one-to-one with the plurality of wind deflectors in the corresponding opening and closing components.

[0020] Secondly, the present invention provides a hair dryer, which includes the above-mentioned air outlet structure, wherein the air outlet structure is disposed at the air outlet of the hair dryer's nozzle.

[0021] The above-mentioned technical features can be combined in various suitable ways or replaced by equivalent technical features, as long as the purpose of the present invention can be achieved.

[0022] The air outlet structure and hair dryer provided by this invention have at least the following advantages compared with the prior art:

[0023] The present invention provides an air outlet structure and a hair dryer that can selectively open or close corresponding vents through corresponding opening and closing components, thereby adjusting the ventilation area to change the wind speed and selectively obtaining high-speed airflow or low-speed gentle airflow. Furthermore, since the distribution of airflow rate, velocity, and airflow pattern are different in the radial direction of the plane where the air outlet is located, users can also choose to open or close the corresponding vents in the radial direction, thereby obtaining a more diverse user experience. Attached Figure Description

[0024] The invention will now be described in more detail with reference to embodiments and the accompanying drawings.

[0025] Figure 1 A schematic diagram of the overall structure of the air outlet structure of the present invention is shown (with the inner vent open and the outer vent closed).

[0026] Figure 2 A partial cross-sectional view of the air outlet structure of the present invention is shown;

[0027] Figure 3 A schematic diagram showing one possible structure of the baffle plate of the air outlet structure of the present invention is provided.

[0028] Figure 4 A schematic diagram showing another structure of the baffle plate of the air outlet structure of the present invention is shown;

[0029] Figure 5 This shows a schematic diagram of the air outlet baffle of the air outlet structure of the present invention;

[0030] Figure 6 This shows a schematic diagram of the limiting member of the air outlet structure of the present invention;

[0031] Figure 7 This diagram shows the air outlet structure of the present invention in the state where the inner vent is closed and the outer vent is open;

[0032] Figure 8 The diagram shows the air outlet structure of the present invention with both the inner and outer vents open.

[0033] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0034] Figure label:

[0035] 1-Air outlet baffle, 11-Ventilation opening, 12-Assembly hole, 2-Opening and closing assembly, 21-Wind deflector, 211-Rotating shaft, 3-First limiting assembly, 31-First limiting groove, 32-First limiting protrusion, 4-Second limiting assembly, 41-Limiting block, 42-Limiting component, 421-Second limiting groove, 4211-Limiting area, 4212-Swinging area, 422-Second limiting protrusion, 423-Third limiting protrusion. Detailed Implementation

[0036] The invention will now be further described with reference to the accompanying drawings.

[0037] Example 1

[0038] An embodiment of the present invention provides an air outlet structure, including an air outlet baffle 1 disposed at an air outlet, the air outlet baffle 1 having multiple annular ventilation openings 11, the ventilation openings 11 being arranged such that the outer ventilation openings 11 surround the inner ventilation openings 11. Each ventilation opening 11 is provided with an opening / closing component 2, each opening / closing component 2 capable of independently opening or closing the corresponding ventilation opening 11.

[0039] Specifically, as shown in the attached diagram. Figure 1 As shown, the air outlet structure of the present invention is first designed for the vents 11 of the air outlet baffle 1. Multiple annular vents 11 are provided on the air outlet baffle 1. The multiple vents 11 adopt a nested ring type, that is, the different vents 11 are located at different positions in the radial direction. Each vent 11 is provided with a corresponding opening and closing component 2. The opening and closing component 2 is used to open or close the corresponding vent 11, and each opening and closing component 2 can operate independently.

[0040] Based on the above structural design, users can selectively open or close the corresponding vents 11 using the corresponding opening and closing components 2. This allows users to change the number of open vents 11 to obtain different ventilation areas. By adjusting the ventilation area, the wind speed can be changed. With the total airflow remaining constant, a larger ventilation area results in a lower wind speed. Therefore, users can selectively obtain high-speed or low-speed, gentle airflow for different user experiences. Furthermore, since the distribution of airflow and velocity differs radially along the plane of the air outlet, vents 11 at different radial positions have different airflow rates, velocities, and flow patterns. Therefore, users can also choose to open or close the corresponding vents 11 radially for even more diverse user experiences.

[0041] Furthermore, in this embodiment, the air outlet baffle 1 of the air outlet structure is provided with two vents 11, and the air outlet structure corresponds to multiple air outlet states with different opening and closing states of multiple vents 11, as shown in the attached figures. Figure 1 , Figure 7 and Figure 8 As shown.

[0042] Preferably, the vent 11 is annular, and the layout of the multiple vents 11 is a concentric circle layout with the center of the air outlet as the center.

[0043] Specifically, this structural design is more compatible with the circular design commonly used for air outlets. The concentric circle layout also ensures that each vent 11 is in a different position in the radial direction, thus corresponding to airflow with different airflow, flow rate and flow conditions.

[0044] Example 2

[0045] An embodiment of the present invention provides an air outlet structure, including an air outlet baffle 1 disposed at an air outlet, the air outlet baffle 1 having multiple annular ventilation openings 11, the ventilation openings 11 being arranged such that the outer ventilation openings 11 surround the inner ventilation openings 11. Each ventilation opening 11 is provided with an opening / closing component 2, each opening / closing component 2 capable of independently opening or closing the corresponding ventilation opening 11.

[0046] Specifically, as shown in the attached diagram. Figure 1 As shown, the air outlet structure of the present invention is first designed for the vents 11 of the air outlet baffle 1. Multiple annular vents 11 are provided on the air outlet baffle 1. The multiple vents 11 adopt a nested ring type, that is, the different vents 11 are located at different positions in the radial direction. Each vent 11 is provided with a corresponding opening and closing component 2. The opening and closing component 2 is used to open or close the corresponding vent 11, and each opening and closing component 2 can operate independently.

[0047] Based on the above structural design, users can selectively open or close the corresponding vents 11 using the corresponding opening and closing components 2. This allows users to change the number of open vents 11 to obtain different ventilation areas. By adjusting the ventilation area, the wind speed can be changed. With the total airflow remaining constant, a larger ventilation area results in a lower wind speed. Therefore, users can selectively obtain high-speed or low-speed, gentle airflow for different user experiences. Furthermore, since the distribution of airflow and velocity differs radially along the plane of the air outlet, vents 11 at different radial positions have different airflow rates, velocities, and flow patterns. Therefore, users can also choose to open or close the corresponding vents 11 radially for even more diverse user experiences.

[0048] Furthermore, in this embodiment, the air outlet baffle 1 of the air outlet structure is provided with two vents 11, and the air outlet structure corresponds to multiple air outlet states with different opening and closing states of multiple vents 11, as shown in the attached figures. Figure 1 , Figure 7 and Figure 8 As shown.

[0049] Preferably, the vent 11 is annular, and the layout of the multiple vents 11 is a concentric circle layout with the center of the air outlet as the center.

[0050] Specifically, this structural design is more compatible with the circular design commonly used for air outlets. The concentric circle layout also ensures that each vent 11 is in a different position in the radial direction, thus corresponding to airflow with different airflow, flow rate and flow conditions.

[0051] Furthermore, the opening and closing assembly 2 includes a plurality of baffles 21 arranged sequentially along the annular path of the vent 11. Each baffle 21 has a rotating shaft 211 on its opposite sides, which respectively fits into mounting holes 12 on the inner and outer walls of the vent 11. The baffles 21 can be rotated to connect with each other to close the vent 11, and can also be rotated to separate from each other to open the vent 11.

[0052] Specifically, as shown in the attached diagram. Figures 2 to 5 As shown, the opening and closing assembly mainly consists of multiple baffles distributed circumferentially along the annular vent. The baffles are positioned within their respective vents, and their opposite sides engage with mounting holes on the inner and outer walls of the vent via a rotating shaft, allowing the baffles to rotate within the vent. Therefore, multiple baffles can be joined together to form a complete annular plate when their surfaces are parallel to the plane of the air outlet, thus closing the vent. Alternatively, the baffles can separate when their surfaces are no longer parallel to the plane of the air outlet, breaking the structure of the annular plate and opening the vent.

[0053] It should be noted that the power driving the wind deflector rotation is not the main improvement of this invention; therefore, existing solutions can be referenced for driving. For example, the wind deflector can be manually rotated, or a micro motor can be installed on the air outlet deflector and connected to the rotating shaft of the wind deflector to drive its rotation. Furthermore, the rotation of multiple wind deflectors can be independent, or a transmission structure can be further provided to allow multiple or all wind deflectors in the same opening and closing assembly to rotate synchronously. The transmission structure can use transmission wires or ropes wound around the rotating shafts of multiple wind deflectors for synchronous driving; or the transmission structure can be similar to a sprocket chain or synchronous belt structure, where the chain or synchronous belt engages circumferentially with sprockets or synchronous pulleys on the rotating shafts of multiple wind deflectors; or the transmission structure can use a linkage structure, except that the main linkage needs to be a ring structure. The above structures can be referenced from existing technologies, and will not be elaborated further in this invention.

[0054] Furthermore, it also includes a first limiting component 3 and a second limiting component 4 with different structures, and the baffle 21 at each vent 11 is equipped with any one of the limiting components. When the baffle 21 rotates to open or close the vent 11, it can trigger the first limiting component 3 to maintain relative stillness with the air outlet baffle 1; when the baffle 21 rotates to open or close the vent 11, it can trigger the second limiting component 4 to maintain relative stillness with the air outlet baffle 1 when the vent 11 is closed, and swing with the airflow within a preset angle range when the vent 11 is open.

[0055] Specifically, after the baffle 21 rotates to open or close the corresponding vent 11, it is also necessary to consider the limiting position of the baffle 21 to keep it in the open or closed state relative to the vent 11. This invention proposes two limiting components based on functional requirements: a first limiting component 3 and a second limiting component 4. These two limiting components can achieve different limiting states. Depending on specific needs, each opening / closing component 2 can selectively be equipped with either of these limiting components. That is, all vents 11 can use the same limiting component, or some vents 11 can use the first limiting component 3 while others use the second limiting component 4.

[0056] Specifically, if it is necessary for the wind deflector 21 to remain completely stationary relative to the air outlet baffle 1 after the vent 11 is closed or opened, then the first limiting component 3 can be used to limit the wind deflector 21. If it is necessary for the wind deflector 21 to remain completely stationary after the vent 11 is closed, but to swing within a preset angle range after the vent 11 is opened, then the second limiting component 4 can be used to limit the wind deflector 21.

[0057] It should be noted that the "oscillation" here refers to the fact that the baffle 21, after opening the vent 11, still has a certain degree of freedom. That is, the baffle 21 can rotate under the action of airflow, that is, it can oscillate back and forth, and thus the rotating shaft 211 can rotate in both directions within a pre-set angle range. The purpose of this design is that the oscillation of the baffle 21 can continuously change the output direction of the airflow, thereby meeting certain usage needs. For example, when the air outlet structure is used in a hair dryer, the oscillation of the baffle 21 can replace the user's action of oscillating the entire hair dryer, thereby changing the output direction of the airflow to dry hair in different areas, reducing the user's hand fatigue and improving the user experience.

[0058] Example 3

[0059] An embodiment of the present invention provides an air outlet structure, including an air outlet baffle 1 disposed at an air outlet, the air outlet baffle 1 having multiple annular ventilation openings 11, the ventilation openings 11 being arranged such that the outer ventilation openings 11 surround the inner ventilation openings 11. Each ventilation opening 11 is provided with an opening / closing component 2, each opening / closing component 2 capable of independently opening or closing the corresponding ventilation opening 11.

[0060] Specifically, as shown in the attached diagram. Figure 1 As shown, the air outlet structure of the present invention is first designed for the vents 11 of the air outlet baffle 1. Multiple annular vents 11 are provided on the air outlet baffle 1. The multiple vents 11 adopt a nested ring type, that is, the different vents 11 are located at different positions in the radial direction. Each vent 11 is provided with a corresponding opening and closing component 2. The opening and closing component 2 is used to open or close the corresponding vent 11, and each opening and closing component 2 can operate independently.

[0061] Based on the above structural design, users can selectively open or close the corresponding vents 11 using the corresponding opening and closing components 2. This allows users to change the number of open vents 11 to obtain different ventilation areas. By adjusting the ventilation area, the wind speed can be changed. With the total airflow remaining constant, a larger ventilation area results in a lower wind speed. Therefore, users can selectively obtain high-speed or low-speed, gentle airflow for different user experiences. Furthermore, since the distribution of airflow and velocity differs radially along the plane of the air outlet, vents 11 at different radial positions have different airflow rates, velocities, and flow patterns. Therefore, users can also choose to open or close the corresponding vents 11 radially for even more diverse user experiences.

[0062] Furthermore, in this embodiment, the air outlet baffle 1 of the air outlet structure is provided with two vents 11, and the air outlet structure corresponds to multiple air outlet states with different opening and closing states of multiple vents 11, as shown in the attached figures. Figure 1 , Figure 7 and Figure 8 As shown.

[0063] Preferably, the vent 11 is annular, and the layout of the multiple vents 11 is a concentric circle layout with the center of the air outlet as the center.

[0064] Specifically, this structural design is more compatible with the circular design commonly used for air outlets. The concentric circle layout also ensures that each vent 11 is in a different position in the radial direction, thus corresponding to airflow with different airflow, flow rate and flow conditions.

[0065] Furthermore, the opening and closing assembly 2 includes a plurality of baffles 21 arranged sequentially along the annular path of the vent 11. Each baffle 21 has a rotating shaft 211 on its opposite sides, which respectively fits into mounting holes 12 on the inner and outer walls of the vent 11. The baffles 21 can be rotated to connect with each other to close the vent 11, and can also be rotated to separate from each other to open the vent 11.

[0066] Specifically, as shown in the attached diagram. Figures 2 to 5 As shown, the opening and closing assembly mainly consists of multiple baffles distributed circumferentially along the annular vent. The baffles are positioned within their respective vents, and their opposite sides engage with mounting holes on the inner and outer walls of the vent via a rotating shaft, allowing the baffles to rotate within the vent. Therefore, multiple baffles can be joined together to form a complete annular plate when their surfaces are parallel to the plane of the air outlet, thus closing the vent. Alternatively, the baffles can separate when their surfaces are no longer parallel to the plane of the air outlet, breaking the structure of the annular plate and opening the vent.

[0067] It should be noted that the power driving the wind deflector rotation is not the main improvement of this invention; therefore, existing solutions can be referenced for driving. For example, the wind deflector can be manually rotated, or a micro motor can be installed on the air outlet deflector and connected to the rotating shaft of the wind deflector to drive its rotation. Furthermore, the rotation of multiple wind deflectors can be independent, or a transmission structure can be further provided to allow multiple or all wind deflectors in the same opening and closing assembly to rotate synchronously. The transmission structure can use transmission wires or ropes wound around the rotating shafts of multiple wind deflectors for synchronous driving; or the transmission structure can be similar to a sprocket chain or synchronous belt structure, where the chain or synchronous belt engages circumferentially with sprockets or synchronous pulleys on the rotating shafts of multiple wind deflectors; or the transmission structure can use a linkage structure, except that the main linkage needs to be a ring structure. The above structures can be referenced from existing technologies, and will not be elaborated further in this invention.

[0068] Furthermore, it also includes a first limiting component 3 and a second limiting component 4 with different structures, and the baffle 21 at each vent 11 is equipped with any one of the limiting components. When the baffle 21 rotates to open or close the vent 11, it can trigger the first limiting component 3 to maintain relative stillness with the air outlet baffle 1; when the baffle 21 rotates to open or close the vent 11, it can trigger the second limiting component 4 to maintain relative stillness with the air outlet baffle 1 when the vent 11 is closed, and swing with the airflow within a preset angle range when the vent 11 is open.

[0069] Specifically, after the baffle 21 rotates to open or close the corresponding vent 11, it is also necessary to consider the limiting position of the baffle 21 to keep it in the open or closed state relative to the vent 11. This invention proposes two limiting components based on functional requirements: a first limiting component 3 and a second limiting component 4. These two limiting components can achieve different limiting states. Depending on specific needs, each opening / closing component 2 can selectively be equipped with either of these limiting components. That is, all vents 11 can use the same limiting component, or some vents 11 can use the first limiting component 3 while others use the second limiting component 4.

[0070] Specifically, if it is necessary for the wind deflector 21 to remain completely stationary relative to the air outlet baffle 1 after the vent 11 is closed or opened, then the first limiting component 3 can be used to limit the wind deflector 21. If it is necessary for the wind deflector 21 to remain completely stationary after the vent 11 is closed, but to swing within a preset angle range after the vent 11 is opened, then the second limiting component 4 can be used to limit the wind deflector 21.

[0071] It should be noted that the "oscillation" here refers to the fact that the baffle 21, after opening the vent 11, still has a certain degree of freedom. That is, the baffle 21 can rotate under the action of airflow, that is, it can oscillate back and forth, and thus the rotating shaft 211 can rotate in both directions within a pre-set angle range. The purpose of this design is that the oscillation of the baffle 21 can continuously change the output direction of the airflow, thereby meeting certain usage needs. For example, when the air outlet structure is used in a hair dryer, the oscillation of the baffle 21 can replace the user's action of oscillating the entire hair dryer, thereby changing the output direction of the airflow to dry hair in different areas, reducing the user's hand fatigue and improving the user experience.

[0072] Furthermore, the first limiting component 3 includes a plurality of first limiting grooves 31 distributed circumferentially on the outer peripheral surface of the rotating shaft portion 211 and at least one first limiting protrusion 32 distributed circumferentially on the wall of the mounting hole 12. When the baffle plate 21 rotates to open or close the vent 11, the corresponding first limiting groove 31 engages with the corresponding first limiting protrusion 32.

[0073] Specifically, as shown in the attached diagram. Figure 2 , Figure 3 and Figure 5 As shown, the first limiting component 3 only needs to ensure that the baffle 21 is stationary relative to the air outlet baffle 1 in a certain state. Therefore, it only needs to adopt a structure in which the first limiting groove 31 and the first limiting protrusion 32 cooperate. The first limiting protrusion 32 can be engaged with the first limiting groove 31. At this time, the impact force of the airflow is insufficient to drive the baffle 21 to rotate and cause the first limiting protrusion 32 to separate from the first limiting groove 31; while other driving forces are large enough to drive the baffle 21 to rotate, causing the first limiting protrusion 32 and the first limiting groove 31 to elastically deform and separate from each other. Multiple first limiting grooves 31 cooperate with the corresponding first limiting protrusions 32 when the baffle 21 rotates to different states, realizing the limiting and fixing function of the baffle 21 in different states.

[0074] Preferably, the plurality of first limiting grooves 31 distributed circumferentially include two end grooves located at two orthogonal positions and at least one intermediate groove distributed between the two end grooves. The end grooves correspond to the complete closure or complete opening of the vent 11, and different intermediate grooves correspond to different opening degrees when the vent 11 is open.

[0075] Specifically, the angle between the two states of the wind deflector 21 being fully open and the vent 11 being fully closed is 90 degrees. Therefore, in order to ensure that the wind deflector 21 remains stationary in both the fully open and fully closed states, first limiting grooves 31 need to be provided at two mutually orthogonal positions on the circumference of the rotating shaft 211, which are called two end grooves. In addition, in order to further ensure that the wind deflector 21 remains stationary when the vent 11 is partially open, a first limiting groove 31 also needs to be provided between the two end grooves, which is called an intermediate groove. Multiple intermediate grooves can correspond to different opening degrees when the vent 11 is partially open.

[0076] Furthermore, the second limiting component 4 includes a limiting block 41 eccentrically disposed on one side of the rotating shaft portion 211 and a limiting member 42 disposed on the air outlet baffle 1. The limiting block 41 is fixedly connected to the rotating shaft portion 211, and the limiting member 42 has a second limiting groove 421 for accommodating the limiting block 41. The rotating shaft portion 211 can drive the limiting block 41 to move along an arc trajectory within the second limiting groove 421 to the first end and the second end of the second limiting groove 421. The first end is provided with a limiting area 4211 that can keep the limiting block 41 relatively stationary, and the second end is provided with a swing area 4212 that allows the limiting block 41 to swing.

[0077] Specifically, as shown in the attached diagram. Figure 2 , Figure 4 and Figure 6 As shown, the second limiting component 4 limits the wind deflector 21 by engaging the limiting block 41 with the second limiting groove 421 on the limiting member 42. When the rotating shaft 211 rotates, the limiting block 41, due to its eccentric structure, moves along an arc trajectory centered on the axis of the rotating shaft 211 with a radius equal to the eccentric distance. The limiting member 42 has a second limiting groove 421 with sufficient space for movement, allowing the limiting block 41 to move along this arc trajectory within the groove. Therefore, the two states of the wind deflector 21—completely closed and completely open of the vent 11—correspond to the endpoints of the limiting block 41's movement along the arc trajectory, and these endpoints also correspond to the end of the second limiting groove 421.

[0078] Therefore, a limiting area 4211 is provided at the first end of the second limiting groove 421. When the baffle 21 completely closes the vent 11, the limiting block 41 moves along an arc trajectory to enter the limiting area 4211, and the limiting block 41 remains stationary relative to the limiting member 42 in the limiting area 4211. A swing area 4212 is provided at the second end of the second limiting groove 421. When the baffle 21 opens the vent 11 to a certain extent, the limiting block 41 moves along an arc trajectory to enter the swing area 4212, and the swing area 4212 mainly limits the... The movable range of the limiting block 41, that is, the limiting block 41 can also reciprocate along the original arc path in the swing area 4212. This reciprocating motion is manifested on the wind deflector 21, that is, the wind deflector 21 swings with the airflow. Here, the stroke of the reciprocating motion in the swing area 4212 is shorter than before, and the stroke of the reciprocating motion in the swing area 4212 corresponds to the aforementioned predetermined angle range. Therefore, the predetermined angle range can be changed by changing the length of the swing area 4212 in the arc path direction of the limiting block 41.

[0079] Furthermore, the specific shape of the second limiting groove 421 can be adaptively set. In principle, it can be directly set to an arc shape by referring to the arc movement trajectory of the limiting block 41. In this case, the width of the second limiting groove 421 is consistent with the radial dimension of the limiting block 41. Of course, it can also be as shown in the figure. Figure 6 As shown, the second limiting groove 421 is set as an L-shaped structure. At this time, the width of the second limiting groove 421 needs to be slightly larger than the radial dimension of the limiting block 41 to provide movement space. Figure 6 The second limiting groove 421 in the L-shaped structure has a notch at the corner to facilitate installation, so that the limiting block 41 can enter the second limiting groove 421.

[0080] Furthermore, a second limiting protrusion 422 is provided at a position closer to the first end than the second end of the second limiting groove 421. The second limiting protrusion 422 and the end groove wall of the first end define a limiting area 4211 of the same size as the limiting block 41. A third limiting protrusion 423 is provided at a position closer to the second end than the first end of the second limiting groove 421. The third limiting protrusion 423 and the end groove wall of the second end define a swing area 4212.

[0081] Specifically, as shown in the attached diagram. Figure 6 As shown, the limiting area 4211 and the swing area 4212 are respectively defined in the second limiting groove 421 by the second limiting protrusion 422 and the third limiting protrusion 423. The limiting block 41 can move along an arc trajectory to the second limiting protrusion 422, and further squeeze the second limiting protrusion 422 to cause elastic deformation before entering the limiting area 4211. The impact force of the airflow is insufficient to cause the limiting block 41 to move in the opposite direction to squeeze the second limiting protrusion 422 again and disengage from the limiting area 4211. The limiting block 41 can move along an arc trajectory to the third limiting protrusion 423, and further squeeze the third limiting protrusion 423 to cause elastic deformation before entering the swing area 4212. Similarly, the impact force of the airflow is also insufficient to drive the limiting block 41 to move in the opposite direction and disengage from the swing area 4212.

[0082] Furthermore, in this embodiment, for the two vents 11 on the air outlet baffle 1, the outer vent 11 is limited by the second limiting component 4 to restrict the baffle 21, and the inner vent 11 is limited by the first limiting component 3 to restrict the baffle 21. Thus, as shown in the attached drawings... Figure 1 In the state shown, the inner vent 11 is open and the outer vent 11 is closed, allowing for high-speed airflow; see attached diagram. Figure 7 In the state shown, the inner vent 11 is closed and the outer vent 11 is open, which can obtain a low-speed (the outer vent 11 is close to the wall of the air duct, so the airflow velocity is low) gentle airflow, and the baffle 21 of the outer vent 11 can swing with the airflow to change the airflow output direction; in the attached figure Figure 8In the state shown, both the inner vent 11 and the outer vent 11 are open, which can obtain a large area, low speed and gentle airflow, and the baffle 21 of the outer vent 11 can swing with the airflow to change the direction of airflow output.

[0083] Furthermore, the limiting member 42 has the same annular structure as the vent 11, and multiple second limiting grooves 421 distributed circumferentially along the annulus are provided on the limiting member 42. The multiple second limiting grooves 421 correspond one-to-one with the multiple wind deflectors 21 in the corresponding opening and closing components 2.

[0084] Specifically, as shown in the attached diagram. Figure 6 As shown, the limiting member 42 has multiple identical second limiting grooves 421, corresponding to each wind deflector 21, which facilitates installation; and by using the same limiting member 42 to cooperate with all the wind deflectors 21, it is equivalent to connecting multiple wind deflectors 21 into one, which helps to improve the stability of the structure.

[0085] Example 4

[0086] An embodiment of the present invention provides a hair dryer, which includes the air outlet structure of any of the above embodiments, and has all the technical effects of the air outlet structure. The air outlet structure is disposed at the air outlet of the hair dryer's nozzle.

[0087] In the description of this invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0088] While the invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. An air outlet structure, characterized in that, It includes an air outlet baffle installed at the air outlet, the air outlet baffle having multiple annular ventilation openings, the multiple ventilation openings being arranged such that the outer ventilation opening surrounds the inner ventilation opening; Each of the ventilation openings is equipped with an opening and closing component, and each opening and closing component can independently open or close the corresponding ventilation opening; The opening and closing assembly includes a plurality of wind baffles arranged sequentially along the annular path of the vent. Each wind baffle has a rotating shaft on its opposite sides, and the rotating shafts on both sides are respectively fitted into mounting holes on the inner and outer walls of the vent. The multiple wind deflectors can be rotated to join together to close the vent, and can also be rotated to separate from each other to open the vent; The air outlet structure also includes a first limiting component and a second limiting component with different structures, and the baffle at each of the air vents is equipped with any one of the limiting components; Wherein, when the wind deflector employs the first limiting component, the first limiting component can be triggered when the wind deflector rotates to open or close the vent, thereby maintaining relative stillness with the air outlet deflector through the first limiting component; and When the wind deflector uses the second limiting component, the wind deflector can trigger the second limiting component when it rotates to open or close the vent, so that the second limiting component can keep it relatively stationary with the air outlet deflector when the vent is closed, and swing with the airflow within a preset angle range when the vent is opened. The second limiting component includes a limiting block eccentrically disposed on one side of the rotating shaft and a limiting member disposed on the air outlet baffle. The limiting block is fixedly connected to the rotating shaft, and the limiting member has a second limiting groove for accommodating the limiting block. The rotating shaft can drive the limiting block to move along an arc trajectory within the second limiting groove to the first end and the second end of the second limiting groove. The first end is provided with a limiting area that can keep the limiting block relatively stationary, and the second end is provided with a swinging area that allows the limiting block to swing.

2. The air outlet structure according to claim 1, characterized in that, The ventilation opening is circular, and the multiple ventilation openings are arranged in a concentric circle layout with the center of the air outlet as the center.

3. The air outlet structure according to claim 1, characterized in that, The first limiting component includes a plurality of first limiting grooves distributed circumferentially on the outer peripheral surface of the rotating shaft and at least one first limiting protrusion distributed circumferentially on the wall of the assembly hole. When the wind deflector is rotated to open or close the ventilation opening, the corresponding first limiting groove engages with the corresponding first limiting protrusion.

4. The air outlet structure according to claim 3, characterized in that, The first limiting grooves distributed circumferentially include two end grooves located at two orthogonal positions and at least one intermediate groove distributed between the two end grooves. The end grooves correspond to the complete closure or complete opening of the vent, and different intermediate grooves correspond to different opening degrees when the vent is open.

5. The air outlet structure according to claim 1, characterized in that, A second limiting protrusion is provided at a position closer to the first end than the second end of the second limiting groove. The second limiting protrusion and the end groove wall of the first end define a limiting area with the same size as the limiting block.

6. The air outlet structure according to claim 1, characterized in that, A third limiting protrusion is provided at a position closer to the second end than the first end of the second limiting groove, and the swing area is defined between the third limiting protrusion and the end groove wall of the second end.

7. The air outlet structure according to any one of claims 1, 5, and 6, characterized in that, The limiting member has the same annular structure as the ventilation opening. The limiting member has multiple second limiting grooves distributed circumferentially along the annulus. The multiple second limiting grooves correspond one-to-one with the multiple wind deflectors in the corresponding opening and closing components.

8. A hair dryer, characterized in that, Includes the air outlet structure as described in any one of claims 1 to 7, wherein the air outlet structure is disposed at the air outlet of the hair dryer's nozzle.

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