Air guide structure and drying components

Abstract

The present application discloses an air guide structure and a drying component, wherein the air guide structure includes a shell and one or more wind resistance structures for increasing wind resistance, the shell is provided with an air inlet at one end and a flat air outlet at the other end, and has an air guide cavity inside; the line connecting the two points on the air outlet that are farthest apart is the width direction of the shell, and the wind resistance structure is located in the middle of the air guide cavity in the width direction. The air guide structure and drying component in the present application add a wind resistance structure in the middle area in the width direction of the air guide cavity, which can reduce the air flow velocity close to the position of the axis of the air guide cavity, so that in the process of the air flow flowing from the air inlet along the air guide cavity to the flat air outlet, the air flow velocities on both sides and the middle in the width direction change to a similar degree, so that the air flow velocity at each location of the air outlet is relatively uniform.

Description

Technical Field

[0001] The present application relates to the technical field of drying equipment, and in particular to an air guide structure and a drying component of a drying equipment. Background Art

[0002] Drying equipment is a device that outputs airflow to dry objects, such as hair dryers, hand dryers, etc. When the drying equipment is running, the propeller driven by the motor rotates to do work on the air, forming a cylindrical airflow that is output to the target object for drying.

[0003] In some application scenarios of drying equipment, the airflow is directed to be flat, that is, the width of the output airflow is significantly greater than the thickness. For example, the air outlet of a hand dryer, the flat air nozzle of a hair dryer (the trade name is generally a gathering nozzle or a shaping air nozzle), etc. The relevant air guide structure has an air guide cavity, the axial cross-section of which transitions from a circular shape to a flat shape, and the airflow is directed to be a flat airflow after being output from the flat opening of the air guide cavity.

[0004] When the airflow passes through the above-mentioned air guide structure, the airflow near the central axis has a higher wind speed, while the airflow near the side wall of the air guide cavity has a lower wind speed. Therefore, in the flat airflow output from the air outlet, there is a problem that the wind speed is high in the middle and low at both ends. The uneven wind speed of the airflow will affect the use effect. For example, when blowing hair, the uneven wind speed of the airflow will make the hair messy. Summary of the invention

[0005] The present application provides an air guide structure and a drying component, which are intended to solve the problem of uneven wind speed of the output airflow when the air guide structure is used to guide the air to the drying equipment in the prior art.

[0006] The wind-guiding structure provided in the present application includes a shell and one or more wind resistance structures for increasing wind resistance. The shell is provided with an air inlet at one end and a flat air outlet at the other end, and has an air-guiding cavity inside. The line connecting the two points on the air outlet that are farthest apart is the width direction of the shell, and the wind resistance structure is located in the middle of the air-guiding cavity in the width direction.

[0007] Optionally, a plurality of the wind resistance structures are symmetrically arranged on two opposite inner walls of the air guiding cavity.

[0008] Optionally, the wind resistance structure is formed on an inner wall of the wind guiding cavity.

[0009] Optionally, the wind resistance structure is an outwardly convex structure formed on the inner wall of the air guiding cavity, and the outwardly convex structure protrudes toward the axial direction of the air guiding cavity.

[0010] Optionally, the convex structure is at least partially streamlined.

[0011] Optionally, the housing comprises:

[0012] A conical body, the bottom surface of which is connected to the air inlet, and the outer diameter of which gradually decreases along the airflow direction;

[0013] A flat portion, the flat portion having a first end and a second end, the first end being connected to the conical portion, the second end being connected to the air outlet, and the outer diameter of the flat portion in the width direction gradually expanding along the airflow direction;

[0014] The convex structure is arranged at the first end, or at the connection between the first end and the conical body.

[0015] Optionally, the convex structure is arranged at the first end, the conical body is connected to the convex structure, and the surfaces of the two are connected to form a smooth curved surface.

[0016] Optionally, in the width direction, the side wall of the conical body portion expands outwardly and transitions to connect to the first end; in a direction perpendicular to the width direction, the side wall of the conical body portion gradually contracts along the airflow direction to form at least a part of the convex structure.

[0017] Optionally, in a projection figure formed by the air guide cavity on the plane where the air outlet is located, the projection contour of the wind resistance structure is a curve that bulges toward the geometric center of the projection figure.

[0018] Optionally, in the cross-sectional figure of the air guide cavity in a direction perpendicular to the width direction, the cross-sectional profile of the wind resistance structure is a curve that bulges toward the axis of the figure.

[0019] Optionally, the housing comprises:

[0020] An inner shell, wherein the inner shell is provided with an air guide cavity;

[0021] The outer shell is installed outside the inner shell, and a gap space for heat insulation is provided between the outer shell and the inner shell.

[0022] Optionally, a portion of the inner shell protrudes toward the axis of the air guide cavity and forms the wind resistance structure.

[0023] Optionally, the wind resistance structure is an independent structure, at least partially located on the axis of the wind guiding cavity.

[0024] Optionally, the wind resistance structure is spherical, or at least partially a part of a sphere.

[0025] The present application also provides a drying assembly, including a drying device and the above-mentioned air guide structure, wherein the drying device has an air flow channel; and an air inlet of the air guide structure is connected to the air flow channel.

[0026] The air guide structure and drying component in the present application have added a wind resistance structure in the middle area in the width direction of the air guide cavity, which can reduce the air flow speed near the axis of the air guide cavity, so that when the air flow flows from the air inlet along the air guide cavity to the flat air outlet, the air flow speeds on both sides and the middle in the width direction change to a similar degree, so that the air flow speed at each location of the air outlet is more uniform.

[0027] Additional aspects and advantages of the embodiments of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0029] Figure 1 is an overall schematic diagram of the air guide structure in certain embodiments of the present application;

[0030] Figure 2 is a schematic diagram of airflow of an air guide structure in certain embodiments of the present application;

[0031] Figure 3 It is a schematic diagram of airflow of an air guide structure in the prior art;

[0032] Figure 4a , Figure 4b , Figure 4c is a schematic diagram of the wind resistance structure in the air inlet direction of certain embodiments of the present application;

[0033] Figure 5 It is a schematic diagram of the wind resistance structure in the air outlet direction of certain embodiments of the present application;

[0034] Figure 6a , Figure 6b It is a schematic diagram of the wind resistance structure inside the wind guide cavity in certain embodiments of the present application. DETAILED DESCRIPTION

[0035] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of the present application, and cannot be understood as limiting the embodiments of the present application.

[0036] like Figure 1As shown, in some embodiments of the present application, a wind guide structure 10 is provided for use with a drying device, and the drying device is a device that can output airflow to dry a target object, such as a hair dryer, a hand dryer, etc. When the wind guide structure 10 is used in conjunction with the drying device, the wind speed, shape, number of air outlets, etc. of the airflow output by the drying device can be changed. The function of the wind guide structure 10 specifically involved in the present application is to guide the airflow from the drying device into a flat shape, that is, the shape of the airflow output from the wind guide structure 10 is roughly: the size in the first direction is significantly larger than the size in the second direction.

[0037] For reference Figure 1 and Figure 4a As shown, the air guide structure 10 includes a shell 11 and one or more wind resistance structures 12. Among them, an air inlet 111 is provided at one end of the shell 11, an air guide cavity 112 is provided inside, and a flat air outlet 113 is provided at the other end. The air inlet 111 is used to connect to the drying device so that the airflow enters the air guide cavity 112 of the shell 11. Along the flow direction of the airflow, the cross-sectional shape of the air guide cavity 112 gradually transitions from the shape of the air inlet 11 to the shape corresponding to the air outlet 113, and the airflow is guided to change its shape after passing through the air guide cavity 112.

[0038] like Figure 1 As shown, for the convenience of description below, a spatial coordinate system (x, y, z) is established, wherein the line connecting the two farthest points on the air outlet 113 is the width direction y, the direction on the plane where the air outlet 113 is located and perpendicular to the width direction y is the thickness direction x, the direction of air flow is the airflow direction z, and the airflow direction z points to the air outlet 113 along the air inlet 111 and is perpendicular to the (x, y) plane. The straight line passing through the geometric center of the air inlet 111 and parallel to the airflow direction z is the axis of the air guide cavity 112 and the airflow. The directions shown in any other figures are the above directions and will not be repeated below. The airflow is guided to be flat, which means that the airflow flowing out of the air outlet 113 has a dimension in the width direction y that is significantly larger than the dimension in the thickness direction x.

[0039] like Figure 4a As shown, the wind resistance structure 12 is located in the middle of the width direction y of the wind guiding cavity 112. The wind resistance structure 12 is used to increase the local wind resistance. When the gas flows through the wind guiding cavity 112, it is affected and the wind speed is reduced when it flows through the wind resistance structure 12. Since the wind resistance structure 12 is located in the middle of the width direction y of the wind guiding cavity 112, the part of the airflow close to the axis is affected by the wind resistance structure 12.

[0040] Figure 3The figure shows a cross-sectional schematic diagram of the wind guide structure 10a without a wind resistance structure in the plane (y, z). When the airflow flows through the wind guide structure 10a in the direction of the arrow, the airflow in area b is affected by the wind resistance of the inner wall due to its proximity to the inner wall, resulting in a large drop in wind speed. The airflow in area a is close to the axis and is not affected by the inner wall, so its wind speed changes little. Therefore, after the airflow flows out of the wind guide structure 10a, there will be a problem of uneven wind speed. Specifically, the airflow in area a has a higher wind speed, while the airflow in area b has a lower wind speed.

[0041] Figure 2 The cross-sectional view of the wind guide structure 10 in certain embodiments of the present application on the plane (y, z) is shown in FIG. Area a is the area affected by the wind resistance structure 12, and area b is the area between area a and the side wall of the wind guide cavity 112. Since the wind resistance structure 12 is located in the middle of the wind guide cavity 112 in the width direction y, area b is symmetrically distributed on both sides of area a. When the gas flows through the wind guide cavity 112, the wind speed is reduced in area a due to the wind resistance of the wind resistance structure 12, and the wind speed is reduced in area b due to the wind resistance of the side wall of the wind guide cavity 112. In other words, relative to Figure 3 For the wind guide structure 10a shown, Figure 2 The wind guide structure 10 shown in the figure increases the wind resistance in area a, so that the wind resistance encountered by the airflow when passing through areas a and b is similar, and the degree of change in wind speed is also similar. Therefore, the wind speed of the airflow flowing out of the air outlet 113 is relatively uniform at all locations.

[0042] From the above content, it can be seen that the wind guide structure 10 in the embodiment of the present application adds a wind resistance structure 12 in the middle area of ​​the width direction y, which can reduce the airflow speed near the axis position, so that when the airflow flows from the air inlet 111 along the air guide cavity 112 to the flat air outlet 113, the airflow speeds of the airflows on both sides and the middle part in the width direction y change to a similar degree, so that the airflow speeds at various locations output by the air outlet 113 are relatively uniform. For example, when using a drying device with the air guide structure 10 for hair blowing, the flat and uniform airflow helps the hair area being blown to receive roughly the same drying and styling effects, making it easier to perform hair styling operations, and providing a better user experience.

[0043] like Figure 4a , Figure 5 as well as Figure 6a As shown, in some embodiments, the number of wind resistance structures 12 is two and they are symmetrically arranged on two opposite inner walls of the wind guiding cavity 112. Figure 4aIn the direction shown, the wind resistance structure 12 is symmetrically arranged on the upper end surface and the lower end surface of the wind guide cavity 112 (i.e., the two end surfaces of the wind guide cavity 112 that are perpendicular to the thickness direction x), so that the wind resistance encountered by the air flow in the thickness direction x when flowing through the upper end surface and the lower end surface of the wind guide cavity 112 is roughly the same, thereby ensuring that the wind speed of the air flow at various locations in the thickness direction x is also relatively uniform. In addition, as Figure 4a and Figure 5 As shown, the flow cross section at the location restricted by the symmetrically designed wind resistance structure 12 is roughly hourglass-shaped. In the area a located in the middle of the width direction y of the wind guide cavity 112, the flow cross section has a smaller size in the thickness direction x, and in the areas b located on both sides of the width direction y of the wind guide cavity 112, the flow cross section has a larger size in the thickness direction x. In the airflow passing through the flow cross section, the airflow passing through the area a is affected by the two wind resistance structures 12 at the same time, and it is converged in the thickness direction x, and the wind resistance is correspondingly larger, while the airflow passing through the area b is not converged in the thickness direction x, and thus the wind resistance is smaller. Therefore, when the airflow is flowing through the flow cross section roughly in the shape of an hourglass, in the width direction y, the wind resistance in the middle is larger, and the wind resistance on both sides is smaller, so that the airflow can be promoted to diffuse along the width direction y and keep the wind speed uniform everywhere.

[0044] In some other embodiments, the number of wind resistance structures 12 may also be one, which is arranged on any end surface of the wind guiding cavity 112 and located in the middle of the width direction y. In some embodiments, the number of wind resistance structures 12 may also be multiple, such as 4, 6, 7, 9, etc., and multiple wind resistance structures may all be arranged on one side wall of the wind guiding cavity 112 and located in the middle of the width direction y. For example, multiple wind resistance structures 12 may be arranged close to each other or spaced apart, or multiple wind resistance structures 12 may be arranged in an arranged manner along the airflow direction z. Multiple wind resistance structures 12 may also be roughly symmetrically distributed on two or more side walls of the wind guiding cavity 112, and all located in the middle of the width direction y.

[0045] In some embodiments, the wind resistance structure 12 is an independent structure, which is arranged at the axis position of the airflow, and can be fixed by means of a catenary, a connecting column, etc. In some embodiments, the wind resistance structure 12 is generally spherical as a whole. In other embodiments, a portion of the wind resistance structure 12 is a portion of a sphere. When the airflow flows through the spherical surface of the wind resistance structure 12, it rubs against the wind resistance structure 12 to generate wind resistance, and the wind noise is small. In some more specific embodiments, such as Figure 4c As shown, the wind resistance structure 12 is configured such that the windward surface is a spherical surface, and the airflow of the axial part is directed to both sides of the width direction y after blowing toward the spherical surface, thereby reducing the wind speed of the axial part of the airflow. Figure 4bAs shown, the wind resistance structure 12 has two symmetrically arranged spherical surfaces (approximately the shape of a convex lens), and the shape of the wind resistance structure 12 is: the closer to the middle of the thickness direction x, the greater the convexity of the spherical surface, that is, the closer the wind resistance structure 12 is to the airflow axis, the greater the wind resistance it provides.

[0046] like Figure 4a As shown, in some embodiments, the wind resistance structure 12 is formed on the side wall of the wind guide cavity 112, so there is no need to set up related structures for installing the wind resistance structure 12, which not only simplifies the structure and reduces the difficulty of assembly, but also only part of the wind resistance structure 12 is located in the airflow, which can further reduce wind noise.

[0047] In some more specific embodiments, the wind resistance structure 12 is a convex structure formed on the side wall of the wind guiding cavity 112, and its shape is convex toward the axis of the wind guiding cavity 112. The convex end of the wind resistance structure 12 is close to the axis of the airflow to increase the wind resistance at the axis of the wind guiding cavity 12.

[0048] In some more specific embodiments, at least the surface of the wind resistance structure 12 facing the air inlet 111 is streamlined to avoid increasing wind noise. Streamlined means that there is no obvious separation shape or edge on its surface, and the wind noise generated when the airflow flows through the streamlined object is small.

[0049] In certain embodiments, Figure 1 and Figure 6a As shown, the housing 11 includes a conical body portion 114 and a flat portion 115. The flat portion 115 is generally flat in shape and has a first end and a second end in the airflow direction z. In the width direction y, the outer diameter of the flat portion 115 gradually expands along the airflow direction z, and the width gradually increases. The first end of the flat portion 112 with a smaller width is connected to the conical body portion 114, and the second end with a larger width is connected to the air outlet 113.

[0050] The cone portion 114 is roughly a part of a cone, and its outer diameter gradually decreases along the airflow direction z, that is, the radial dimension gradually decreases. The end with a larger outer diameter of the cone portion 114 has a bottom surface and is connected to the air inlet 111, and the end with a smaller outer diameter is connected to the second end of the flat portion 115.

[0051] The convex structure 12 is disposed at the first end of the flat portion 115 , or at the connection between the first end and the conical portion 114 .

[0052] The whole process of air flow through the air guide cavity 112 is as follows: the air flow enters the bottom surface of the conical portion 114 from the air inlet 111, flows along the tapered side wall of the conical portion 114 and converges in the radial direction, then enters the first end of the flat portion 115, and then diffuses in the width direction y along the gradually expanding side wall of the flat portion 115, gradually guides to a flat shape and leaves the air guide cavity 112 from the air outlet 113.

[0053] In the above process, the airflow only converges in the radial direction when passing through the conical portion 114, and has not yet begun to diffuse in the width direction y, so the airflow remains roughly cylindrical. Figure 3 The airflow distribution principle shown in the figure will show a trend of high wind speed in the middle and low wind speed on both sides in the width direction y. Therefore, in some embodiments of the present application, the convex structure 12 is arranged at the first end or at the connection between the first end and the conical part 114, and acts on the airflow before the above-mentioned wind speed change trend, so that the airflow maintains a uniform wind speed change at various locations in the width direction y during the process of the cylindrical shape being gradually guided to a flat shape, preventing the above-mentioned wind speed change trend, and finally outputting an airflow with uniform wind speed at various locations from the air outlet 113.

[0054] like Figure 6a As shown, further, in some embodiments, the convex structure 12 is arranged at the connection between the first end and the conical portion 114, and the conical portion 114 is connected to the surface of the convex structure 12 to form a smooth curved surface. A smooth curved surface means that the surface has a tangent plane at each point, and the direction of the tangent plane changes continuously with the continuous change of the points on the surface. For example, a sphere is a typical smooth curved surface. In the process of the airflow entering the flat portion 115 from the conical portion 114, the airflow flows along the surface of the conical portion 114 to the surface of the convex structure 12. Since the surfaces of the two are connected to form a smooth curved surface, the wind noise generated when the gas flows through is small, and it can be smoothly guided and decelerated.

[0055] like Figure 6b In other embodiments shown, the convex structure 12 is disposed at the first end of the flat portion 115 and is not directly connected to the conical portion 114. After the airflow enters the first end of the flat portion 115 from the conical portion 114, it flows through the convex structure 12 and is guided and decelerated.

[0056] like Figure 1 , Figure 4a As shown, in some embodiments, in the width direction y, the two side walls of the cone portion 114 are expanded and transitionally connected to the first end of the flat portion 115, and the airflow flowing along the side walls is guided to expand outward along the width direction y. In the thickness direction x, the middle part of the two side walls of the cone portion 114 gradually shrinks along the airflow direction z to form at least a part of the convex structure 12, and the airflow flowing along the side walls is affected by the wind resistance of the convex structure 12 to reduce the wind speed.

[0057] It should be noted that, in the air guide structure 10 in the above-mentioned embodiment, the size of the air outlet 113 in the thickness direction x is smaller than the size of the air inlet 111, that is, the airflow not only expands in the width direction y, but also shrinks in the thickness direction x during the process of flowing through the air guide cavity 112. For this reason, a conical body portion 114 is provided to make the airflow converge in the radial direction, and an outer convex structure 12 is provided downstream of the conical body portion 114. In other embodiments not shown, in the thickness direction x, the air outlet 113 and the air inlet 111 of the air guide structure 10 may have the same or similar sizes, that is, the airflow only expands in the width direction y during the process of flowing through the air guide cavity 112, and does not change or changes to a small extent in the thickness direction x. In this case, there is no need to provide a conical body portion 114, and the flat portion 115 constitutes the entire air guide structure 10.

[0058] In certain embodiments, Figure 5 As shown, in the projection figure formed by the air guide cavity 112 on the plane where the air outlet 113 is located, the projection contour of the wind resistance structure 12 is a curve that bulges toward the geometric center of the projection figure. When the user observes the air guide cavity 112 from the air outlet 113 along the airflow direction z, the wind resistance structure 12 bulges toward the axial direction.

[0059] In certain embodiments, Figure 6a As shown, in the cross-sectional figure of the wind guide cavity 112 in the direction perpendicular to the width direction y, the cross-sectional profile of the wind resistance structure 12 is a curve convex toward the axis of the figure. That is, on the plane (x, z), in the cross-sectional figure formed by the wind guide cavity 112, the wind resistance structure 12 is at least partially closer to the axis position relative to the inner wall of the flat portion 115, and the airflow flowing at this position is affected by the wind resistance structure 12 and the wind speed is reduced. The curve convex specifically means that the cross-sectional contour line of the wind resistance structure 12 is significantly increased in curvature compared with the contour line of the side wall of the wind guide cavity 112, and when the airflow flows along the curve, the wind resistance at the wind resistance structure 12 is significantly increased. In other words, in the cross-sectional figure perpendicular to the width direction y, in the side wall contour of the wind guide cavity 112, the part with significantly increased curvature and convex toward the axis of the figure constitutes the wind resistance structure 12 in certain embodiments of the present application.

[0060] In certain embodiments, Figure 1As shown, the shell 11 includes an inner shell and an outer shell (the inner shell and the outer shell are not directly shown in the relevant drawings), wherein the inner shell is provided with an air guide cavity 112 and constitutes the inner wall of the shell 11, and the outer shell is installed on the outside of the inner shell and constitutes the outer wall of the shell 11, and there is a gap space for heat insulation between the outer shell and the inner shell. In other words, the inner wall and the outer wall of the shell 11 are formed by different structures, and the inner wall and the outer wall are insulated by the gap space. When the temperature of the airflow output by the drying equipment is high, the airflow only heats the inner wall of the shell 11 in the process of flowing through the air guide cavity 112. Due to the isolation of the gap space, the heat will not be completely transferred to the outer wall of the shell 11, thereby preventing the outer shell from being heated to an excessively high temperature. In other embodiments, the shell 11 can also be formed by a single part, that is, the inner wall and the outer wall are located on the same structure.

[0061] like Figure 1 and Figure 4a As shown, in some more specific embodiments, a part of the inner shell (i.e., the inner wall of the shell 11) protrudes in the axial direction of the air guide cavity 112 and forms a wind resistance structure 12. The inner shell can be made of materials such as plastic, metal, ceramic, etc., and generally has a uniform thickness. During the design, it is partially designed to be convex inwardly and form a wind resistance structure 12. In this way, the wind resistance structure 12 and the shell 11 are integrally formed, and the manufacturing and assembly costs are low. And because the wind resistance structure 12 is formed in the inner shell and will not be reflected on the outer shell, the user will not see the inwardly concave wind resistance structure 12 from the outside of the shell 11, and the overall appearance of the wind guide structure will not be affected.

[0062] like Figure 1 As shown, in certain embodiments of the present application, a drying component is also provided, including a drying device and the above-mentioned air guide structure 10. The drying device has an air flow channel, and the air inlet 111 of the air guide structure 10 is connected to the air flow channel. The air flow channel of the drying device is roughly cylindrical, and the output air flow is guided into a flat air flow after passing through the air guide structure 10. With reference to the foregoing structure of the air guide structure 10, it can be seen that the wind guide cavity 112 thereof is provided with a wind resistance structure 12 in the middle of the width direction y, which can reduce the wind resistance at the axial position, so that after the cylindrical air flow is guided into a flat shape, the wind speed at each location in the width direction y is relatively uniform.

[0063] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0064] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0065] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A wind guide structure, characterized in that: include: A shell, wherein one end of the shell is provided with an air inlet, the other end is provided with a flat air outlet, and an air guide cavity is provided inside; The line connecting the two points on the air outlet that are farthest apart is the width direction of the shell; One or more wind resistance structures for increasing wind resistance, the wind resistance structures being located in the middle of the wind guiding cavity in the width direction and being used to reduce the air flow velocity near the axis of the wind guiding cavity; The wind resistance structure is an outwardly convex structure formed on the inner wall of the wind guiding cavity, and the outwardly convex structure protrudes toward the axial direction of the wind guiding cavity.

2. The wind guide structure according to claim 1, characterized in that: The plurality of wind resistance structures are symmetrically arranged on two opposite inner walls of the wind guiding cavity.

3. The wind guide structure according to claim 1, characterized in that: The outer convex structure is at least partially streamlined.

4. The wind guide structure according to claim 1, characterized in that: The housing comprises: A conical body, the bottom surface of which is connected to the air inlet, and the outer diameter of which gradually decreases along the airflow direction; A flat portion, the flat portion having a first end and a second end, the first end being connected to the conical portion, the second end being connected to the air outlet, and the outer diameter of the flat portion in the width direction gradually expanding along the airflow direction; The convex structure is arranged at the first end, or at the connection between the first end and the conical body.

5. The wind guide structure according to claim 4, characterized in that: The convex structure is arranged at the first end, the conical body is connected to the convex structure, and the surfaces of the two are connected to form a smooth curved surface.

6. The wind guide structure according to claim 4, characterized in that: In the width direction, the side wall of the cone portion expands outwardly and transitions to connect to the first end; in a direction perpendicular to the width direction, the side wall of the cone portion gradually contracts along the airflow direction to form at least a part of the convex structure.

7. The wind guide structure according to claim 1, characterized in that: In the projection figure formed by the air guide cavity on the plane where the air outlet is located, the projection contour of the wind resistance structure is a curve that bulges toward the geometric center of the projection figure.

8. The air guide structure according to claim 1, characterized in that: In the cross-sectional figure of the air guide cavity in a direction perpendicular to the width direction, the cross-sectional profile of the wind resistance structure is a curve convex toward the axis of the figure.

9. The wind guide structure according to claim 1 or 2, characterized in that: The housing comprises: An inner shell, wherein the inner shell is provided with an air guide cavity; The outer shell is installed outside the inner shell, and a gap space for heat insulation is provided between the outer shell and the inner shell.

10. The wind guide structure according to claim 9, characterized in that: A portion of the inner shell protrudes toward the axis of the air guide cavity and forms the wind resistance structure.

11. The wind guide structure according to claim 1, characterized in that: The wind resistance structure is an independent structure, and at least part of it is located on the axis of the wind guiding cavity.

12. The wind guide structure according to claim 11, characterized in that: The wind resistance structure is spherical, or at least partially a part of a sphere.

13. A drying component, characterized in that: include: A drying device having an air flow channel; One or more wind guide structures according to any one of claims 1 to 12, wherein the air inlet of the wind guide structure is connected to the air flow channel.

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