Air pattern control mechanism and fan

Abstract

An air pattern control mechanism (100) and a fan (1000). The air pattern control mechanism (100) comprises: a support (110); and an airflow adjusting member (120), the airflow adjusting member (120) being arranged in an air channel space (111). The airflow adjusting member (120) comprises multiple guide vanes (1201) arranged in the front-rear direction. The multiple guide vanes (1201) comprise a plurality of front side guide vanes (121) and a plurality of rear side guide vanes (122), the plurality of front side guide vanes (121) and the plurality of rear side guide vanes (122) being rotatable with respect to each other. The airflow adjusting member (120) has a first state in which the plurality of front side guide vanes (121) and the plurality of rear side guide vanes (122) at least partially overlap each other in the front-rear direction, and a second state in which the plurality of front side guide vanes (121) and the plurality of rear side guide vanes (122) are offset with respect to each other in the circumferential direction.

Description

Wind type control mechanism and fan

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application number "202311874241.4" entitled "Wind Type Control Mechanism and Fan" filed by Guangdong Midea Environmental Electrical Appliance Manufacturing Co., Ltd. on December 29, 2023, and Chinese patent application number "202410194268.7" entitled "Wind Type Control Mechanism and Fan" filed on February 21, 2024. Technical Field

[0003] The present application relates to the technical field of household electrical appliances, and in particular to a wind type control mechanism and a fan. Background Art

[0004] As people's living standards continue to improve, consumers' requirements for fans are also getting higher and higher.

[0005] In the related art, a guide mechanism is provided on the fan for adjusting the direction of airflow. However, the working state of the guide mechanism cannot be adjusted, resulting in a single blowing range and a single wind feeling of the fan, which cannot meet the user's usage needs. At the same time, the structure of the guide mechanism is complex, resulting in high production costs and low processing efficiency of the fan.

[0006] Application Contents

[0007] The present application aims to solve one of the technical problems in the related art at least to a certain extent.

[0008] To this end, the present application proposes a wind type control mechanism, the working state of which can be adjusted, thereby achieving the adjustment of the wind feeling and wind range of the wind. At the same time, the wind type control mechanism has a simple structure and is easy to produce and process.

[0009] The present application further proposes a fan.

[0010] According to the wind type control mechanism of the present application, it includes: a bracket, which is provided with an annular air duct space; an air flow adjustment member, which is arranged in the air duct space, and the air flow adjustment member includes multiple layers of guide vanes arranged in the front-to-back direction, and the multiple layers of guide vanes include multiple front guide vanes and multiple rear guide vanes, the multiple front guide vanes are located at the front side of the air outlet of the multiple rear guide vanes and can rotate relative to each other, the multiple front guide vanes are arranged at intervals along the circumferential direction, and the multiple rear guide vanes are arranged at intervals along the circumferential direction, and the air flow adjustment member has a first state and a second state, in the first state, the multiple front guide vanes and the multiple rear guide vanes are at least partially overlapped in the front-to-back direction, and in the second state, the multiple front guide vanes and the multiple rear guide vanes are staggered in the circumferential direction.

[0011] Therefore, according to the wind pattern control mechanism of the present application, by setting the airflow adjustment member, the wind pattern control mechanism can adjust the air outlet range and air outlet intensity. When the airflow adjustment member is in the first state, the front guide vanes and the rear guide vanes are relatively arranged in the front-to-back direction. The front guide vanes and the rear guide vanes can continuously guide the airflow, and the circumferential component velocity of the airflow is converted into the axial component velocity. The airflow is in a convergent state when it flows out, and the air outlet intensity of the airflow is large; in the second state, the airflow adjustment member has a small rectifying effect on the airflow, and the circumferential component velocity of the airflow can be maintained when the airflow flows through the airflow adjustment member, so that the airflow can be conical when it flows out from the airflow adjustment member, ensuring the divergent state of the airflow when it flows out, and the airflow adjustment member can switch between the first state and the second state, so that the wind pattern control mechanism has different working states. The user can adjust the working state of the wind pattern control mechanism according to actual needs to meet the user's usage needs. At the same time, the wind pattern control mechanism of the present application has a simple structure, which is conducive to reducing the production cost of the wind pattern control mechanism and improving production efficiency.

[0012] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] FIG1 is a schematic structural diagram of the wind pattern control mechanism according to an embodiment of the present application when in a wind gathering state;

[0014] FIG2 is a cross-sectional view taken along line AA of FIG1 ;

[0015] FIG3 is a schematic structural diagram of the wind pattern control mechanism according to an embodiment of the present application when in a scattered wind state;

[0016] FIG4 is a cross-sectional view at BB in FIG3 ;

[0017] FIG5 is a first comparative diagram of simulation analysis of airflow through an airflow adjustment member according to an embodiment of the present application, wherein FIGA is a simulation analysis streamline diagram of the airflow adjustment member in the second state, and FIGB is a simulation analysis streamline diagram of the airflow adjustment member in the first state;

[0018] FIG6 is a second comparative diagram of simulation analysis of airflow through an airflow adjustment member according to an embodiment of the present application, wherein FIGC is a simulation analysis cloud diagram when the airflow adjustment member is in the second state, and FIGD is a simulation analysis cloud diagram when the airflow adjustment member is in the first state;

[0019] FIG7 is a first structural diagram of a swing blade according to an embodiment of the present application;

[0020] FIG8 is a second structural diagram of the swing blade according to an embodiment of the present application;

[0021] FIG9 is a schematic structural diagram of a fixing ring according to an embodiment of the present application;

[0022] FIG10 is a schematic structural diagram of a rotating ring according to an embodiment of the present application;

[0023] FIG11 is a schematic diagram of the cooperation between the rotating ring and the driving device according to an embodiment of the present application;

[0024] FIG12 is a schematic diagram of the assembly of the air duct adjustment member, the bracket, and the airflow adjustment member according to an embodiment of the present application;

[0025] FIG13 is a schematic diagram of the assembly of the wind pattern control mechanism and the housing according to an embodiment of the present application;

[0026] FIG14 is a comparison diagram of simulation analysis of airflow through an airflow adjustment member and an air duct adjustment member according to an embodiment of the present application, wherein FIGE is a simulation analysis streamline diagram when the wind pattern control mechanism is in the wind dispersion mode, and FIGF is a simulation analysis streamline diagram when the wind pattern control mechanism is in the wind concentration mode;

[0027] FIG15 is a schematic structural diagram of a fan according to an embodiment of the present application;

[0028] FIG16 is a cross-sectional view of a portion CC in FIG15 ;

[0029] FIG17 is a schematic structural diagram of a housing according to an embodiment of the present application;

[0030] FIG18 is a schematic structural diagram of the air outlet grille according to an embodiment of the present application;

[0031] FIG19 is an enlarged view of point K in FIG2 . DETAILED DESCRIPTION

[0032] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0033] In the description of the present application, it should be understood that the terms "center", "length", "width", "thickness", "front", "back", "left", "right", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present application. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0034] In the description of this application, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0035] The wind pattern control mechanism 100 and the fan 1000 according to an embodiment of the present application are described below with reference to Figures 1 to 19.

[0036] 1 to 4 , the wind pattern control mechanism 100 according to the present application includes: a bracket 110 and an airflow adjustment member 120, the bracket 110 is provided with an annular air duct space 111, the airflow adjustment member 120 is arranged in the air duct space 111, the airflow adjustment member 120 includes a plurality of guide vanes 1201 arranged in a front-to-back direction, the plurality of guide vanes 1201 include a plurality of front guide vanes 121 and a plurality of rear guide vanes 122, the plurality of front guide vanes 121 are located at the front side of the air outlet of the plurality of rear guide vanes 122 and can rotate relative to each other, the plurality of front guide vanes 121 are arranged at intervals along the circumferential direction, and the plurality of rear guide vanes 122 are arranged at intervals along the circumferential direction, the airflow adjustment member 120 has a first state and a second state, in the first state, the plurality of front guide vanes 121 and the plurality of rear guide vanes 122 are at least partially overlapped in the front-to-back direction, and in the second state, the plurality of front guide vanes 121 and the plurality of rear guide vanes 122 are staggered in the circumferential direction.

[0037] The multi-layer guide vanes 1201 include at least two layers of guide vanes 1201, i.e., the multi-layer guide vanes 1201 may be two layers of guide vanes 1201, three layers of guide vanes 1201, or four layers of guide vanes 1201 arranged in the front-to-back direction. It should also be noted that each layer of guide vanes includes a plurality of guide vanes spaced circumferentially, i.e., a plurality of front guide vanes 121 are located in the same layer, and a plurality of rear guide vanes 122 are located in the same layer.

[0038] The bracket 110 can provide an installation position for the airflow adjustment member 120, wherein the bracket 110 is provided with an annular air duct space 111, and a plurality of front guide vanes 121 are arranged in sequence at intervals along the circumferential direction, and a front gap is formed between every two adjacent front guide vanes 121 for airflow to pass through, and a plurality of rear guide vanes 122 are arranged in sequence at intervals along the circumferential direction, and a rear gap is formed between every two adjacent rear guide vanes 122 for airflow to pass through, and the front guide vanes 121 and the rear guide vanes 122 are arranged in the air duct space 111 along the axial direction, and the front guide vanes 121 are located at the air outlet end of the rear guide vanes 122, and the air flow flows from the air inlet end of the rear guide vanes 122 through the rear guide vanes 122 and flows into the gaps between the plurality of front guide vanes 121 through the air outlet end of the rear guide vanes 122, and the rear guide vanes 122 and the front guide vanes 121 can both play a role in guiding the airflow, thereby playing a role in adjusting the flow direction of the airflow.

[0039] The airflow adjustment member 120 has a first state and a second state. The plurality of front guide vanes 121 and the plurality of rear guide vanes 122 can move relative to each other to facilitate switching of the airflow adjustment member 120 between the first state and the second state. With reference to Figures 1 and 2, in the first state, the plurality of front guide vanes 121 and the plurality of rear guide vanes 122 are arranged in a one-to-one correspondence in the direction of extension of the central axis of the air duct space 111, and the plurality of front guide vanes 121 and the plurality of rear guide vanes 122 are at least partially overlapped, that is, the orthographic projections of the plurality of front guide vanes 121 in the direction of the central axis of the air duct space 111 and the orthographic projections of the plurality of rear guide vanes 122 in the direction of the central axis of the air duct space 111 are at least partially overlapped. For example, the ends of the plurality of front guide vanes 121 in the direction of extension of the central axis of the air duct space 111 and the ends of the plurality of rear guide vanes 122 in the direction of extension of the central axis of the air duct space 111 can be overlapped, or the plurality of front guide vanes 121 and the plurality of rear guide vanes 122 are arranged one-to-one opposite each other.

[0040] When multiple front guide vanes 121 and multiple rear guide vanes 122 are arranged one by one, the front gap is opposite to the rear gap. After the airflow flows into the rear gap and is guided by the rear guide vanes 122, the airflow continues to flow into the front gap, so that the front gap further guides the airflow, and the circumferential component velocity of the airflow is converted into the axial component velocity, so that the airflow can be concentrated toward the central axis of the air duct space 111. The front gap and the rear gap form a continuous flow space, and the front guide vanes 121 and the rear guide vanes 122 can continuously guide the airflow to continuously adjust the airflow, improve the rectifying effect of the airflow adjustment component 120 on the airflow, improve the effect of converting the circumferential component velocity of the airflow into the axial component velocity, reduce the flow area of ​​the airflow in the radial direction when it flows out from the airflow adjustment component 120, so that the airflow is cylindrical as a whole after flowing out, and the axial velocity of the airflow when flowing out is large, so that the wind output intensity is large.

[0041] The airflow passing through the wind pattern control mechanism 100 is spiral, and has a circumferential component velocity and an axial component velocity.

[0042] 3 and 4 , in the second state, in the extension direction of the central axis of the air duct space 111, the orthographic projection of each rear guide vane 122 is located between the orthographic projections of every two adjacent front guide vanes 121, that is, the rear guide vanes 122 are arranged opposite to the front gap in the axial direction, so that multiple front guide vanes 121 and multiple rear guide vanes 122 are staggered in the circumferential direction, the front gap and the rear gap are staggered, and the front guide vanes 121 and the rear guide vanes 122 cannot continuously guide the airflow. Compared with the first state, when the airflow flows into the rear gap, the guiding time of the airflow by the rear guide vanes 122 is short. Similarly, when the airflow flows into the front gap, the guiding time of the airflow by the front guide vanes 121 is short, and the overall rectifying effect of the airflow adjustment member 120 on the airflow is reduced. When the airflow flows through the airflow adjustment member 120, the circumferential component velocity of the airflow can be maintained, so that the airflow presents a cone-like shape as a whole when flowing out of the airflow adjustment member 120, ensuring the divergent state of the airflow when flowing out.

[0043] The dimension of the front gap in a direction parallel to the central axis of the air duct space 111 is the length dimension of the front gap, and the dimension of the rear gap in a direction parallel to the central axis of the air duct space 111 is the length dimension of the rear gap.

[0044] In the related art, a guide mechanism is provided on the fan for adjusting the direction of airflow. However, the working state of the guide mechanism cannot be adjusted, resulting in the inability to adjust the blowing range and wind feeling of the fan, which cannot meet the user's usage needs and affects the user's usage experience.

[0045] The present application sets an airflow adjustment member 120, and the airflow adjustment member 120 is provided with a front guide vane 121 and a rear guide vane 122. In the first state, the front guide vane 121 and the rear guide vane 122 are arranged relative to each other in the front-to-back direction. The front guide vane 121 and the rear guide vane 122 can continuously guide the airflow, thereby improving the guiding effect of the airflow adjustment member 120 on the airflow, improving the effect of converting the circumferential component velocity of the airflow into the axial component velocity, reducing the flow area of ​​the airflow in the radial direction when it flows out from the airflow adjustment member 120, and making the axial velocity of the airflow when it flows out large, the airflow is in a convergent state when it flows out, and the airflow outlet intensity is large; in the second state, the airflow adjustment member 120 is in a The node 120 has a small effect on the rectification of the airflow. When the airflow flows through the airflow adjustment component 120, the circumferential component velocity of the airflow can be maintained, so that the airflow can be conical when flowing out of the airflow adjustment component 120, ensuring the divergent state of the airflow when flowing out. Thus, the wind type control mechanism 100 can adjust the airflow range and airflow intensity, and the working state of the wind type control mechanism 100 can be switched. The user can adjust the working state of the wind type control mechanism 100 according to actual use requirements to meet the different use requirements of the user. At the same time, the wind type control mechanism 100 of the present application has a simple structure, which is conducive to reducing the production cost of the wind type control mechanism 100 and improving production efficiency.

[0046] According to the wind type control mechanism 100 of the present application, by setting the air flow adjustment member 120, the wind type control mechanism 100 can adjust the air outlet range and air outlet intensity. When the air flow adjustment member 120 is in the first state, the front guide vane 121 and the rear guide vane 122 are arranged relative to each other in the front-to-back direction. The front guide vane 121 and the rear guide vane 122 can continuously guide the airflow, and the circumferential component velocity of the airflow is converted into the axial component velocity. When the airflow flows out, it is in a convergent state, and the airflow outlet intensity is large. In the second state, the airflow adjustment member 120 has a small rectifying effect on the airflow, and the airflow flows through The airflow adjustment member 120 can maintain the circumferential component velocity of the airflow, so that the airflow can be conical when flowing out from the airflow adjustment member 120, ensuring the divergent state of the airflow when flowing out, and the airflow adjustment member 120 can be switched between the first state and the second state, so that the wind type control mechanism 100 has different working states. The user can adjust the working state of the wind type control mechanism 100 according to actual needs to meet the user's usage needs. At the same time, the wind type control mechanism 100 of the present application has a simple structure, which is conducive to reducing the production cost of the wind type control mechanism 100 and improving production efficiency.

[0047] In some embodiments of the present application, in a first state, the plurality of front guide vanes 121 and the plurality of rear guide vanes 122 are arranged one by one opposite to each other in the front-to-rear direction; in a second state, the plurality of front guide vanes 121 and the plurality of rear guide vanes 122 are staggered in the circumferential direction.

[0048] 1 and 2, in the first state, in the direction of extension of the central axis of the air duct space 111, multiple front guide vanes 121 and multiple rear guide vanes 122 are arranged in a one-to-one correspondence. At this time, the front gap is directly opposite to the rear gap. After the airflow flows into the rear gap and the rear guide vanes 122 guide the airflow, the airflow continues to flow into the front gap, so that the front gap further guides the airflow, and the circumferential component velocity of the airflow is converted into the axial component velocity, so that the airflow can be concentrated toward the central axis of the air duct space 111. The front gap and the rear gap form a continuous flow space, and the front guide vanes 121 and the rear guide vanes 122 can continuously guide the airflow to continuously adjust the airflow, improve the rectifying effect of the airflow adjustment member 120 on the airflow, improve the effect of converting the circumferential component velocity of the airflow into the axial component velocity, reduce the flow area of ​​the airflow in the radial direction when it flows out from the airflow adjustment member 120, so that the airflow presents a cylindrical shape as a whole after flowing out, and makes the axial velocity of the airflow when flowing out large, so that the wind intensity is large.

[0049] The airflow passing through the wind pattern control mechanism 100 is spiral, and has a circumferential component velocity and an axial component velocity.

[0050] 3 and 4 , in the second state, in the extension direction of the central axis of the air duct space 111, the orthographic projection of each rear guide vane 122 is located between the orthographic projections of every two adjacent front guide vanes 121, that is, the rear guide vanes 122 are arranged opposite to the front gap in the axial direction, so that multiple front guide vanes 121 and multiple rear guide vanes 122 are staggered in the circumferential direction, the front gap and the rear gap are staggered, and the front guide vanes 121 and the rear guide vanes 122 cannot continuously guide the airflow. Compared with the first state, when the airflow flows into the rear gap, the guiding time of the airflow by the rear guide vanes 122 is short. Similarly, when the airflow flows into the front gap, the guiding time of the airflow by the front guide vanes 121 is short, and the overall rectifying effect of the airflow adjustment member 120 on the airflow is reduced. When the airflow flows through the airflow adjustment member 120, the circumferential component velocity of the airflow can be maintained, so that the airflow presents a cone-like shape as a whole when flowing out of the airflow adjustment member 120, ensuring the divergent state of the airflow when flowing out.

[0051] The dimension of the front gap in a direction parallel to the central axis of the air duct space 111 is the length dimension of the front gap, and the dimension of the rear gap in a direction parallel to the central axis of the air duct space 111 is the length dimension of the rear gap.

[0052] In combination with Figures 5 and 6, the wind type control mechanism 100 of the present application is simulated and analyzed, as shown in Figure 5B and Figure 6D, in the first state, at the standard test distance, the wind outlet range of the wind type control mechanism 100 is 0.13㎡, and the average wind speed within the wind outlet range is 2.02m / s. As shown in Figure 5A and Figure 6C, in the second state, at the standard test distance, the wind outlet range of the wind type control mechanism 100 is 0.23㎡, and the average wind speed within the wind outlet range is 1.36m / s.

[0053] The wind outlet range refers to the area where the wind speed is greater than 0.4 m / s. The "standard test distance" can be three times the diameter of the circle where the multiple blade tips 311 are located, so as to facilitate simulation and test comparison of the wind type control mechanism 100.

[0054] Of course, when simulating and testing the wind type control mechanism 100 for comparison, it is not limited to measuring at the above-mentioned "standard test distance". It is sufficient to ensure that the wind output effects of the wind type control mechanism 100 in the first state and the second state are measured at the same position.

[0055] 5 and 6 and the above data, it can be seen that when the wind type control mechanism 100 is in the first state, the wind outlet range of the wind type control mechanism 100 is small, the wind speed is high, and the wind outlet is strong; when the wind type control mechanism 100 is in the second state, the wind outlet range of the wind type control mechanism 100 is large, the wind speed is low, and the wind outlet is soft; and the wind outlet feeling of the wind type control mechanism 100 in different states has obvious differences, thereby improving the user experience.

[0056] In conjunction with Figures 1 to 4 and Figure 19 , in some embodiments of the present application, a gap S is formed between the front guide vane 121 and the rear guide vane 122 in a direction parallel to the first central axis, where S is less than 3 mm. A gap S is formed between the front guide vane 121 and the rear guide vane 122, where S is less than or equal to 1.6 mm.

[0057] On the premise of ensuring that the front guide vane 121 and the rear guide vane 122 do not collide, the gap between the front guide vane 121 and the rear guide vane 122 is as small as possible to prevent the airflow from escaping from the gap between the front guide vane 121 and the rear guide vane 122, which is conducive to ensuring the wind gathering effect of the airflow adjustment member 120.

[0058] S is 0.5 mm to prevent the airflow from escaping from the gap between the front guide vane 121 and the rear guide vane 122 . At the same time, it can effectively prevent the front guide vane 121 and the rear guide vane 122 from colliding during relative movement, thereby ensuring the normal operation of the airflow adjustment member 120 .

[0059] 1 to 4 and 19 , in some embodiments of the present application, in a direction parallel to the first central axis, a guide angle 1204 is provided at one end of the front guide vane 121 and the rear guide vane 122 that are opposite to each other.

[0060] In the direction extending from the front guide vane 121 to the rear guide vane 122, the cross-sectional area of ​​the end of the front guide vane 121 close to the rear guide vane 122 gradually decreases. Similarly, in the direction extending from the rear guide vane 122 to the front guide vane 121, the cross-sectional area of ​​the end of the rear guide vane 122 close to the front guide vane 121 gradually decreases, so that a guide angle 1204 is formed at the end where the front guide vane 121 and the rear guide vane 122 are arranged opposite to each other. By setting the guide angle 1204, the smoothness of the airflow in the airflow adjustment member 120 can be effectively improved, and the noise generated by the airflow can be reduced.

[0061] In conjunction with Figures 1 to 4, the wind type control mechanism 100 according to the present application includes: an air duct 101, having an air inlet side and an air outlet side, the air duct 101 restricts the air flow from the air inlet side to the air outlet side; an air flow adjustment member 120, the air flow adjustment member 120 is arranged in the air duct 101, for example, at the air duct outlet of the air duct 101, the air flow adjustment member 120 has a first central axis, the air flow adjustment member 120 includes a plurality of guide vanes 1201 arranged at intervals around the first central axis, the air flow adjustment member 120 has a first state and a second state, a first air flow flow pore 1202 is defined between adjacent guide vanes 1201 in the first state, and a second air flow flow pore 1203 is defined between adjacent guide vanes 1201 in the second state, and in a direction parallel to the first central axis, the length of the first air flow flow pore 1202 is greater than the length of the second air flow flow pore 1203.

[0062] The wind type control mechanism 100 is provided with an air duct 101, and the air flow can flow from the air inlet side of the air duct 101 to the air outlet side of the air duct 101. The air duct 101 can limit the flow direction of the air flow, prevent the air flow from diverging, and ensure the air outlet effect of the wind type control mechanism 100.

[0063] The airflow adjustment member 120 is arranged in the air duct 101 to guide the airflow flowing into the air duct 101, wherein the airflow adjustment member 120 includes a plurality of guide vanes 1201, and the plurality of guide vanes 1201 extend radially outward around the first center axis, and a gap is formed between every two adjacent guide vanes 1201. The airflow can flow through the guide vanes 1201 through the gap between the two adjacent guide vanes 1201, so that the guide vanes 1201 can guide the airflow so that its circumferential component velocity is converted into an axial component velocity, and the airflow can flow in a direction close to the first center axis.

[0064] 1 and 2 , when the airflow adjustment member 120 is in the first state, the gap defined between every two adjacent guide vanes 1201 is defined as a first airflow circulation pore 1202; when the airflow adjustment member 120 is in the second state, the gap defined between every two adjacent guide vanes 1201 is defined as a second airflow circulation pore 1203, and in the direction parallel to the first center axis, the length of the first airflow circulation pore 1202 is greater than the length of the second airflow circulation pore 1203, that is, when the airflow adjustment member 120 is in the first state, the airflow circulation pore of the airflow adjustment member 120 becomes longer, which can prolong the airflow guidance time, and the airflow adjustment member 120 has a good rectifying effect on the airflow, which can improve the effect of converting the circumferential component velocity of the airflow into the axial component velocity, so that the airflow converges in the direction close to the first center axis, thereby realizing the convergence effect of the airflow adjustment member 120 on the airflow.

[0065] 3 and 4 , when the airflow adjustment member 120 is in the second state, the airflow flows through the second airflow circulation pore 1203. Since the length of the second airflow circulation pore 1203 is relatively short, the airflow adjustment member 120 has a short guiding time for the airflow, and the overall guiding effect of the airflow adjustment member 120 is reduced. When the airflow flows through the airflow adjustment member 120, its circumferential component velocity can be effectively maintained, so that the airflow presents a cone-like shape as a whole when it flows out of the airflow adjustment member 120, thereby ensuring the divergent state of the airflow.

[0066] The first central axis is arranged parallel to or collinear with the rotational center line of the driving fan 300 .

[0067] According to the wind type control mechanism 100 of the present application, by setting the airflow adjustment member 120, the wind type control mechanism 100 can adjust the air outlet range and air outlet intensity. When the airflow adjustment member 120 is in the first state, the airflow adjustment member 120 can continuously guide the airflow, and the circumferential component velocity of the airflow is converted into the axial component velocity. The airflow is in a convergent state when flowing out, and the airflow intensity is large; in the second state, the airflow adjustment member 120 has a small rectifying effect on the airflow, and the airflow can maintain the circumferential component velocity of the airflow when flowing through the airflow adjustment member 120, so that the airflow can be conical when flowing out of the airflow adjustment member 120, ensuring the divergent state of the airflow when flowing out, and the airflow adjustment member 120 can switch between the first state and the second state, so that the wind type control mechanism 100 has different working states, and the user can adjust the working state of the wind type control mechanism 100 according to actual needs to meet the user's usage needs.

[0068] 1 and 2 , in some embodiments of the present application, the wind pattern control mechanism 100 further includes an annular bracket 110 , the bracket 110 defines an air duct 101 , and the airflow adjustment member 120 is mounted to the bracket 110 .

[0069] The bracket 110 defines the air duct 101, and the air flow can flow in the air duct 101. The bracket 110 can serve as an installation carrier for the air flow adjustment member 120 to facilitate the installation of the air flow adjustment member 120. The bracket 110 can also protect the air flow adjustment member 120 to prevent external debris from contacting the air flow adjustment member 120 and causing the air flow adjustment member 120 to malfunction.

[0070] 1 to 4 , in some embodiments of the present application, the number of the second airflow apertures 1203 is greater than the number of the first airflow apertures 1202 .

[0071] The airflow adjustment member 120 includes a multi-layer guide vane 1201, which includes a plurality of front guide vanes 121 and a plurality of rear guide vanes 122. The plurality of front guide vanes 121 are arranged at intervals around the first central axis, and a front gap is formed between every two adjacent front guide vanes 121. The multi-layer rear guide vanes 122 are arranged at intervals around the first central axis, and a rear gap is formed between every two adjacent rear guide vanes 122.

[0072] When the airflow adjustment member 120 is in the first state, each front guide vane 121 and each rear guide vane 122 are arranged opposite each other in a direction parallel to the first center axis, and each front gap and each rear gap are arranged opposite each other in a direction parallel to the first center axis. The front gap and the rear gap together constitute the first airflow flow pore 1202. The front guide vanes 121 and the rear guide vanes 122 can continuously guide the airflow, improve the effect of converting the circumferential component velocity of the airflow into the axial component velocity, so that the airflow presents a cylindrical shape as a whole after flowing out, and the wind feeling when the airflow flows out is strong.

[0073] When the airflow adjustment member 120 is in the second state, each front guide vane 121 and each rear guide vane 122 are staggered in a direction parallel to the first center axis, so that each front gap and each rear gap are staggered in a direction parallel to the first center axis, and each front gap and each rear gap are second airflow flow holes 1203, thereby achieving that the number of first airflow flow holes 1202 is less than the number of second airflow flow holes 1203, the length of the second airflow flow holes 1203 is short, and the front guide vanes 121 and the rear guide vanes 122 cannot be continuously guided. Compared with the first state, the overall rectification effect of the airflow adjustment member 120 on the airflow is reduced, and the circumferential component velocity of the airflow can be maintained when the airflow flows through the airflow adjustment member 120, so that the airflow presents a cone-like divergence as a whole when flowing out of the airflow adjustment member 120.

[0074] In other embodiments of the present application, the guide vane 1201 can be constructed as a structure that can be extended and retracted in a direction parallel to the first center axis. When the airflow adjustment member 120 is in a first state, the guide vane 1201 is extended in a direction parallel to the first center axis. When the airflow adjustment member 120 is in a second state, the guide vane 1201 is shortened in a direction parallel to the first center axis, so that the length of the first airflow circulation pore 1202 is greater than the length of the second airflow circulation pore 1203.

[0075] 2 , in some embodiments of the present application, the thickness of the front guide vane 121 is H1, the thickness of the rear guide vane 122 is H2, and the total thickness of the front guide vane 121 and the rear guide vane 122 is H3, where H3 satisfies: 10 mm ≤ H3 ≤ 20 mm.

[0076] The “thickness of the guide vane” refers to the dimension of the guide vane in the axial direction.

[0077] By ensuring that 10mm≤H3≤20mm, it is beneficial to ensure the guiding effect of the airflow adjustment member 120 on the airflow, thereby helping to improve the adjustment effect of the wind type control mechanism 100 on the airflow. H3 is 15mm, so that while ensuring the adjustment effect of the airflow adjustment member 120 on the airflow, the occupied space of the airflow adjustment member 120 can be reduced, thereby helping to reduce the volume of the wind type control mechanism 100.

[0078] Among them, when H3 is less than 10 mm, the airflow adjustment component 120 has a poor airflow guiding effect. When H3 is greater than 20 mm, the airflow adjustment component 120 requires a large layout space, resulting in a large volume and weight of the wind type control mechanism 100, which is not conducive to the miniaturization and lightweight design of the wind type control mechanism 100.

[0079] The thickness H1 of the front guide vane 121 can be the same as the thickness H2 of the rear guide vane 122 and both are 7.5 mm. By making the thickness of the front guide vane 121 and the rear guide vane 122 the same, it is beneficial to improve the processing convenience of the front guide vane 121 and the rear guide vane 122, and improve the production and processing efficiency of the wind type control mechanism 100.

[0080] In conjunction with Figures 8 to 12, in some embodiments of the present application, the bracket 110 includes a fixed ring 112 and a rotating ring 113, the rotating ring 113 is rotatable relative to the fixed ring 112, and one of the front guide vane 121 and the rear guide vane 122 is provided on the fixed ring 112 and the other is provided on the rotating ring 113.

[0081] The fixed ring 112 and the rotating ring 113 are used to provide installation positions for the front guide vane 121 and the rear guide vane 122 respectively. An annular installation space is formed in the fixed ring 112, and an annular arrangement space is formed in the rotating ring 113. The annular installation space and the annular arrangement space are arranged relative to each other in the axial direction. The front guide vane 121 can be installed on the fixed ring 112, and the rear guide vane 122 can be installed on the rotating ring 113; of course, the front guide vane 121 can also be installed on the rotating ring 113, and the rear guide vane 122 can be installed on the fixed ring 112, as long as the front guide vane 121 and the rear guide vane 122 can rotate relative to each other.

[0082] The rotating ring 113 can rotate relative to the fixed ring 112, so that the front guide vane 121 and the rear guide vane 122 can rotate relative to each other. When the air outlet state needs to be adjusted, the rotating ring 113 can be driven to rotate so that the front guide vane 121 and the rear guide vane 122 can rotate relative to each other to adjust the position of the front guide vane 121 and the rear guide vane 122, so that the front guide vane 121 and the rear guide vane 122 are opposite to each other in the front-to-back direction or the front guide vane 121 and the rear guide vane 122 are staggered in the circumferential direction, thereby adjusting the working state of the airflow adjustment component 120.

[0083] In conjunction with Figures 9 and 10, in some embodiments of the present application, a guide vane support 1132 is provided in the rotating ring 113, and a guide vane support portion 1121 is provided in the fixed ring 112. The guide vane support 1132 and the rotating ring 113 together define an annular arrangement space, and the fixed ring 112 and the guide vane support portion 1121 together define an annular installation space. One of the front guide vane 121 and the rear guide vane 122 is provided on the fixed ring 112 and the other is provided on the rotating ring 113. The guide vane support 1132 and the rotating ring 113 together define an annular arrangement space. 2 can provide support for one of the front guide vane 121 or the rear guide vane 122, so as to facilitate the installation of the front guide vane 121 or the rear guide vane 122, and can ensure the stability of the front guide vane 121 or the rear guide vane 122. Similarly, the guide vane support portion 1121 can provide support for one of the front guide vane 121 or the rear guide vane 122, so as to facilitate the installation of the front guide vane 121 or the rear guide vane 122, and can ensure the stability of the front guide vane 121 or the rear guide vane 122.

[0084] Among them, the guide vane support 1132 can be connected to the rotating ring 113 through a connecting rib structure to ensure the connection reliability between the guide vane support 1132 and the rotating ring 113. Similarly, the guide vane support part 1121 can be connected to the rotating ring 113 through a connecting rib structure to ensure the connection reliability between the guide vane support part 1121 and the fixed ring 112.

[0085] Referring to Figure 11, in some embodiments of the present application, the wind type control mechanism 100 also includes a driving device, which is transmission-connected to the rotating ring 113 to drive the rotating ring 113 to rotate, thereby realizing the relative rotation of the front guide vane 121 and the rear guide vane 122 to adjust the working state of the airflow adjustment member 120, wherein the driving device can realize manual or automatic driving of the rotating ring 113.

[0086] When the rotating ring 113 is manually driven, the driving device can be constructed as a toggle lever, which is arranged on the rotating ring 113 and extends radially away from the central axis of the rotating ring 113. The user can manually drive the toggle lever to rotate the rotating ring 113 relative to the fixed ring 112, thereby realizing the relative rotation of the front guide vane 121 and the rear guide vane 122, so that the airflow adjustment member 120 can switch between the first state and the second state, thereby realizing the user's manual adjustment of the working state of the wind type control mechanism 100.

[0087] When the rotating ring 113 is automatically driven, a driving portion (not shown) is provided on the rotating ring 113 . The driving device can be constructed as a driving motor 140 . The output end of the driving motor 140 is connected to the driving portion to drive the rotating ring 113 to rotate.

[0088] For example, the output end of the drive motor 140 can be constructed as a crank, and the drive part can be constructed as a boss structure. The crank is connected to the drive part. At this time, the rotating ring 113 can serve as a rocker in a four-bar mechanism, and a crank-rocker mechanism is formed between the crank and the rotating ring 113. When the drive motor 140 is working, the crank drives the rotating ring 113 to perform a small distance reciprocating rotation motion through the drive part, so that the rotating ring 113 can rotate relative to the fixed ring 112, thereby allowing the front guide vane 121 and the rear guide vane 122 to rotate relative to each other.

[0089] The driving motor 140 can be configured as a shaking motor, the output end of the driving motor 140 can be constructed as a connecting rod, the driving part can be constructed as a connecting rod mounting column, the connecting rod is connected to the connecting rod mounting column, so that a crank rocker mechanism is formed between the output end of the driving motor 140 and the rotating ring 113, and the rotating ring 113 serves as a rocker component in the crank rocker mechanism. When the driving motor 140 is working, the connecting rod drives the rotating ring 113 to rotate through the driving part, so that the front guide vane 121 and the rear guide vane 122 can rotate relative to each other, so that the front guide vane 121 and the rear guide vane 122 are arranged one by one in a straight line or staggered in the front and rear directions, thereby realizing automatic adjustment of the airflow adjustment component 120.

[0090] The driving motor 140 can be configured as a stepper motor, and a driving gear is provided at the output end of the driving motor 140. At this time, the driving part is constructed as a mating gear, and the driving gear can engage with the mating gear. When the driving motor 140 is working, the driving gear drives the mating gear to rotate to drive the rotating ring 113 to rotate, and the stepper motor rotates back and forth to drive the rotating ring 113 to rotate back and forth.

[0091] The driving device can be arranged outside the rotating ring 113, or the driving device can also be arranged inside the rotating ring 113. As long as the driving device can drive the rotating ring 113, the specific arrangement is not limited here.

[0092] In some embodiments of the present application, a mounting position for a drive motor 140 is provided in the guide vane support portion 1121, and the drive motor 140 can be installed in the guide vane support portion 1121. Accordingly, a drive portion is provided in the guide vane support 1132, and the drive portion can be connected to the output end of the drive motor 140 to drive the rotating ring 113 to rotate.

[0093] Specifically, referring to Figures 9 to 11 , the drive motor 140 can be configured as an oscillating motor. The output end of the drive motor 140 is configured as a connecting rod. The connecting rod extends radially from the guide vane support portion 1121. The guide vane support 1132 is formed with an avoidance groove 1133. The connecting rod can be disposed within the guide vane support 1132 through the avoidance groove 1133 to facilitate connection between the connecting rod and the drive portion. The avoidance groove 1133 can be configured as an arc-shaped groove.

[0094] 9 to 11 , in some embodiments of the present application, the front guide vane 121 and the rear guide vane 122 are both formed in an arc shape.

[0095] The cross section of the front guide vane 121 perpendicular to the central axis of the air duct space 111 is formed into an arc shape. Similarly, the cross section of the rear guide vane 122 perpendicular to the central axis of the air duct space 111 is formed into an arc shape to reduce the wind resistance when the air flows through the front guide vane 121 and the rear guide vane 122, thereby ensuring the flow effect of the airflow. Of course, the front guide vane 121 and the rear guide vane 122 can also be formed into other shapes, such as a straight line.

[0096] In some embodiments of the present application, at least one layer of guide vanes 1201 rotates relative to the guide vanes 1201 of the remaining layers within a set time period; or at least one layer of guide vanes 1201 rotates back and forth relative to the guide vanes 1201 of the remaining layers within a set time period.

[0097] At least one layer of guide vanes 1201 can rotate counterclockwise or clockwise around the first center axis within a set time period relative to the guide vanes 1201 of the remaining layers. Within the set time period, the guide vanes 1201 can rotate a certain angle so that the multiple layers of guide vanes 1201 can be arranged in a direction parallel to the first center axis. The airflow adjustment component 120 can switch from the first state to the second state or from the second state to the first state to realize automatic regulation of the working state of the airflow adjustment component 120.

[0098] At least one layer of guide vanes 1201 can rotate back and forth around the first center axis relative to the guide vanes 1201 of the remaining layers within a set time period. For example, at least one layer of guide vanes 1201 can first rotate clockwise around the first center axis to a certain angle relative to the guide vanes 1201 of the remaining layers within a set time period, so that the multiple layers of guide vanes 1201 can be arranged in a direction parallel to the first center axis, or staggered, and then the layer of guide vanes 1201 rotates counterclockwise around the first center axis to achieve reset, so that the airflow adjustment component 120 can switch from the first state to the second state or from the second state to the first state, so as to achieve automatic regulation of the working state of the airflow adjustment component 120.

[0099] The number of layers of the guide vanes 1201 and the number of layers of rotating guide vanes 1201 are not specifically limited here, as long as relative rotation between the multiple layers of guide vanes 1201 can be ensured.

[0100] In some embodiments of the present application, at least one layer of guide vanes rotates reciprocally relative to the guide vanes of the remaining layers within a set time.

[0101] At least one layer of guide vanes 1201 can rotate around the first central axis relative to the guide vanes 1201 of the remaining layers within a set time period. Within the set time period, the guide vanes 1201 can rotate a certain angle so that the multiple layers of guide vanes 1201 can be aligned or offset in a direction parallel to the first central axis, so that the airflow adjustment member 120 can switch between the first state and the second state.

[0102] In combination with Figures 1 to 4, in some embodiments of the present application, the air flow adjustment member 120 is provided with a first central axis, and a plurality of guide vanes 1201 are arranged at intervals around the first central axis; the wind type control mechanism 100 also includes a duct adjustment member 130, and the duct adjustment member 130 forms an air flow adjustment cavity 133. The inner wall of the air flow adjustment cavity 133 is deflected relative to the vertical plane of the first central axis under the action of the duct adjustment member 130. The wind type control mechanism 100 has a wind gathering mode and a wind dispersion mode. The inner wall of the air flow adjustment cavity 133 is deflected relative to the vertical plane at a larger angle in the wind dispersion mode than in the wind gathering mode, so that the air flow is restricted by the inner wall of the air flow adjustment cavity 133 in the wind gathering mode, and diffuses outward under the guidance of the inner wall of the air flow adjustment cavity 133 in the wind dispersion mode.

[0103] When the airflow flows into the airflow adjustment member 120, the guide vanes 1201 can guide the airflow to adjust the airflow effect when the airflow flows out of the airflow adjustment member 120. The plurality of guide vanes 1201 can be arranged in a layer, and the plurality of guide vanes 1201 are arranged at intervals around the first central axis. The plurality of guide vanes 1201 can be deflected relative to the first central axis. The guide vanes 1201 are deflected at a greater angle relative to the first central axis in the wind dispersion mode than in the wind gathering mode. For example, in the wind gathering mode, the guide vanes 1201 can be parallel to or slightly away from the first central axis. The angle is set, when the airflow flows into the airflow adjustment member 120 and hits the guide vane 1201, the guide vane 1201 can guide the airflow so that it converges in the direction of the first central axis; in the dispersed wind mode, the guide vane 1201 deflects in the direction away from the first central axis, and the deflection angle of the guide vane 1201 relative to the first central axis is larger than that in the dispersed wind mode, the adjustment effect of the guide vane 1201 on the airflow is reduced, and the airflow can maintain its circumferential component velocity, so that the airflow can be in a divergent state when flowing out of the airflow adjustment member 120.

[0104] The plurality of guide vanes 1201 can be constructed so that the length of the gap between every two adjacent guide vanes 1201 can be adjusted. In the wind gathering mode, the gap defined between every two adjacent guide vanes 1201 is defined as a first airflow circulation pore 1202. In the wind dispersion mode, the gap defined between every two adjacent guide vanes 1201 is defined as a second airflow circulation pore 1203, and in the direction parallel to the first center axis, the length of the first circulation pore is greater than the length of the second airflow circulation pore 1203, that is, when in the wind gathering mode, the airflow adjustment member 120 has a long guiding time for the airflow, and the airflow adjustment member 120 has a good rectifying effect on the airflow, which can improve the effect of converting the circumferential component velocity of the airflow into the axial component velocity, so that the airflow converges in the direction close to the first center axis, thereby achieving the converging effect of the airflow adjustment member 120 on the airflow.

[0105] When in the wind dispersion mode, the airflow flows through the second airflow circulation hole 1203. Since the length of the second airflow circulation hole 1203 is relatively short, the airflow adjustment component 120 has a short time to guide the airflow, and the overall guiding effect of the airflow adjustment component 120 is reduced. When the airflow flows through the airflow adjustment component 120, its circumferential component velocity can be effectively maintained, so that the airflow presents a cone-like shape as a whole when flowing out of the airflow adjustment component 120, ensuring the divergent state of the airflow.

[0106] The wind type control mechanism 100 also includes a duct adjustment member 130, which has an airflow adjustment cavity 133 formed therein. When the airflow flows into the airflow adjustment cavity 133, the inner wall of the airflow adjustment cavity 133 can guide the airflow to adjust the wind feel and air outlet range when the airflow flows out of the duct adjustment member 130. When the airflow adjustment member 130 is adjusted, the inner wall of the airflow adjustment cavity 133 formed by the duct adjustment member 130 can be deflected relative to the vertical plane of the first central axis, so that the regulating effect of the inner wall of the airflow adjustment cavity 133 on the airflow can be adjusted.

[0107] The “vertical plane” does not refer to a plane extending in a vertical direction, but only means a plane perpendicular to the first central axis.

[0108] The wind type control mechanism 100 has a wind gathering mode and a wind dispersion mode. When the wind type control mechanism 100 is in the wind gathering mode, the inner wall of the airflow adjustment cavity 133 is arranged at an angle to the vertical plane, and the inner wall of the airflow adjustment cavity 133 can regularize the airflow, so that the circumferential component velocity of the airflow is converted into an axial component velocity, thereby making the airflow flowing out of the air duct adjustment member 130 gather in the direction close to the first center axis.

[0109] When the wind type control mechanism 100 is in the wind dispersion mode, the angle formed between the inner wall of the airflow adjustment member 120 and the vertical plane is larger than when the wind type control mechanism 100 is in the wind gathering mode, so as to reduce the adjustment effect of the inner wall of the airflow adjustment cavity 133 on the circumferential component velocity of the airflow. When the airflow flows out from the air duct adjustment member 130, it can still maintain a certain circumferential component velocity, so that the airflow presents an overall cone-like shape when flowing out, and the airflow is in a divergent state.

[0110] 1 to 4 , in some embodiments of the present application, the air duct adjustment member 130 is provided on the bracket 110 and is located on the air outlet side of the air flow adjustment member 120 , and the area of ​​the air outlet 131 of the air duct adjustment member 130 in the wind gathering state is smaller than the area of ​​the air outlet 131 in the wind dispersing state.

[0111] The “air outlet side of the air flow adjustment member 120 ” refers to the side from which the air flows out of the air flow adjustment member 120 .

[0112] The air duct adjustment member 130 is set on the bracket 110, and the air duct adjustment member 130 is located on the air outlet side of the airflow adjustment member 120. The air flow flows through the airflow adjustment member 120 and then flows into the air duct adjustment member 130. The area of ​​the air outlet 131 of the air duct adjustment member 130 can be adjusted so as to further adjust the flow range and intensity of the airflow through the area of ​​the air outlet 131.

[0113] Among them, when the air duct adjusting member 130 is in the wind gathering state, the inner wall of the air duct adjusting member 130 can guide the airflow flowing into it, the air duct adjusting member 130 can regularize the airflow flowing into it, and the air outlet 131 of the air duct adjusting member 130 has a small area. The air duct adjusting member 130 can adjust the circumferential component velocity of the airflow to the axial component velocity, so that the airflow flowing out of the air duct adjusting member 130 is more concentrated in the axial direction, the flow distance is longer, and the airflow is stronger.

[0114] When the air duct adjusting member 130 is in the wind-dispersing state, the air outlet 131 of the air duct adjusting member 130 has a large area, and the inner wall of the air duct adjusting member 130 has little interference with the circumferential component velocity of the air flow. The air flow can still maintain a certain circumferential component velocity when flowing out of the air duct adjusting member 130, so that the air flow flowing out of the air duct adjusting member 130 is more divergent in the radial direction and the air flow is softer.

[0115] In conjunction with Figures 1 and 2, when the airflow adjustment member 120 is in the first state, the air duct adjustment member 130 is in the wind gathering state. After the airflow flows out of the airflow adjustment member 120, the air duct adjustment member 130 can rectify the airflow to ensure the gathering effect of the airflow when it flows out from the wind-type control mechanism; in conjunction with Figures 3 and 4, when the airflow adjustment member 120 is in the second state, the air duct adjustment member 130 is in the wind dispersion state. After the airflow flows out of the airflow adjustment member 120, the air duct adjustment member 130 can maintain the component velocity of the airflow in the circumferential direction to ensure the divergence effect of the airflow when it flows out from the wind-type control mechanism 100.

[0116] Therefore, by making the air duct adjustment member 130 cooperate with the airflow adjustment member 120, the guiding effect of the wind type control mechanism 100 on the airflow is improved, thereby improving the adjustment effect of the wind flow control mechanism on the airflow, so that the wind feeling of the air outlet has obvious differences, which is conducive to meeting the different usage needs of users and improving the user experience.

[0117] In some embodiments of the present application, the air duct adjustment member 130 includes a plurality of swing blades 132 , which are arranged along the circumference of the bracket 110 of the wind pattern control mechanism 100 , and each swing blade 132 is rotatably disposed on the bracket 110 .

[0118] The end of the pendulum blade 132 close to the bracket 110 in the axial direction is defined as the inner end of the pendulum blade 132, which can also be understood as the air inlet end of the pendulum blade 132. The end of the pendulum blade 132 away from the bracket 110 in the axial direction is defined as the outer end of the pendulum blade 132, which can also be understood as the air outlet end of the pendulum blade 132. The outer end of the pendulum blade 132 is the outer side of the air duct regulating member 130, and the inner end of the pendulum blade 132 is the inner side of the air duct regulating member 130. In addition, an air outlet 131 is formed on the outer side of the air duct regulating member 130.

[0119] 1 and 3 , a plurality of pendulum blades 132 are provided, and the plurality of pendulum blades 132 are evenly arranged along the circumferential direction of the bracket 110 to construct the air duct adjustment member 130 into a ring shape. The inner end of each pendulum blade 132 is rotatably connected to the bracket 110, and when the inner end of the pendulum blade 132 rotates relative to the bracket 110, the outer end of each pendulum blade 132 can move toward or away from the central axis of the air duct adjustment member 130, thereby adjusting the area of ​​the air outlet 131 of the air duct adjustment member 130 to reduce or increase the area of ​​the air outlet 131, so that the air duct adjustment member 130 can switch between a wind dispersion state and a wind gathering state.

[0120] When the inner end of the pendulum blade 132 drives the outer end to rotate toward the direction close to the central axis of the duct regulating member 130, multiple pendulum blades 132 shrink inwardly in the radial direction, and the area of ​​the air outlet 131 is small. Multiple pendulum blades 132 can regularize the airflow to convert the circumferential component velocity of the airflow into an axial component velocity, so that the wind intensity is large and the wind feeling is strong, thereby realizing the wind gathering state of the duct regulating member 130; when the inner end of the pendulum blade 132 drives the outer end to rotate toward the direction away from the central axis of the duct regulating member 130, multiple pendulum blades 132 expand outwardly in the radial direction, the area of ​​the air outlet 131 increases, and the pendulum blades 132 have little interference with the circumferential component velocity of the airflow. When the airflow is discharged from the duct regulating member 130, the airflow can still maintain a certain circumferential component velocity, so that the air outlet area is large and the air outlet is soft, thereby realizing the wind dispersing state of the duct regulating member 130.

[0121] In combination with Figures 2 and 4 as well as Figures 9 and 10, in some embodiments of the present application, the rotating ring 113 is located at the air inlet end of the fixed ring 112, the front guide vane 121 is arranged on the fixed ring 112, the rear guide vane 122 is arranged on the rotating ring 113, and the air duct adjustment member 130 is arranged on the fixed ring 112 and rotates in conjunction with the airflow adjustment member 120.

[0122] As shown in Figure 8, multiple pendulum blades 132 are arranged in sequence along the circumferential direction. A drive seat 1321 is provided at the air inlet end of the pendulum blade 132. A drive rod 1322 is provided on the side of the drive seat 1321 away from the central axis of the air duct adjustment member 130. The drive rod 1322 is rotatably connected to the drive seat 1321.

[0123] As shown in Figure 9, the air outlet end of the fixed ring 112 is provided with a plurality of swing blade mounting parts 1122 arranged at intervals along the circumferential direction, the drive seat 1321 is rotatably connected to the swing blade mounting part 1122, and the rotation axis between the drive rod 1322 and the drive seat 1321 is arranged parallel to the rotation axis of the drive seat 1321 and the swing blade mounting part 1122.

[0124] As shown in Figure 10, a plurality of drive blocks 1134 are formed on the outer wall surface of the rotating ring 113 and are arranged at intervals in the circumferential direction. The drive blocks 1134 extend in the radial direction away from the central axis of the rotating ring 113. A drive groove 1135 is formed on the drive block 1134 and is recessed in the radial direction toward the side of the central axis of the rotating ring 113. The end of the drive rod 1322 away from the swing blade 132 can be inserted into the drive groove 1135.

[0125] The driving groove 1135 extends obliquely on the driving block 1134, that is, one end of the driving groove 1135 is arranged close to the air outlet end of the rotating ring 113 in the axial direction, and the other end of the driving groove 1135 is arranged close to the air inlet end of the rotating ring 113 in the axial direction, and the arrangement of multiple driving grooves 1135 is the same.

[0126] 12 and 13, when the rotating ring 113 rotates relative to the fixed ring 112, the driving rod 1322 can slide in the driving groove 1135. Since the driving groove 1135 is arranged obliquely, the driving rod 1322 moves in the axial direction toward or away from the air inlet end of the rotating ring 113 while sliding in the driving groove 1135. Specifically, the driving groove 1135 can drive the driving rod 1322 to move toward the air inlet end of the rotating ring 113. At this time, the driving rod 1322 drives the driving seat 1321 to rotate toward the air inlet end of the rotating ring 113, and at the same time drives The seat 1321 drives the swing blades 132 to rotate toward the air inlet end of the rotating ring 113. At this time, the air outlet ends of the multiple swing blades 132 move radially away from the central axis of the air duct adjustment member 130. The area of ​​the air outlet 131 of the air duct adjustment member 130 increases, and the air duct adjustment member 130 is in a wind dispersion state. At the same time, the rotating ring 113 drives the rear guide vane 122 to rotate relative to the front guide vane 121, and rotates until the multiple front guide vanes 121 and the multiple rear guide vanes 122 are staggered one by one. The airflow adjustment member 120 is in the second state, and the wind type control mechanism 100 is in a wind dispersion mode.

[0127] When the driving slot 1135 drives the driving rod 1322 to move in the direction of the air inlet end away from the rotating ring 113, the driving rod 1322 drives the driving seat 1321 to rotate in the direction of the air inlet end away from the rotating ring 113, and at the same time, the driving seat 1321 drives the swing blade 132 to rotate in the direction of the air inlet end away from the rotating ring 113. At this time, the air outlet ends of multiple swing blades 132 move in the radial direction close to the center axis of the air duct adjustment member 130, and the area of ​​the air outlet 131 of the air duct adjustment member 130 increases. The air duct adjustment member 130 is in a wind gathering state. At the same time, the rotating ring 113 drives the rear guide vane 122 to rotate relative to the front guide vane 121, and rotates until multiple front guide vanes 121 and multiple rear guide vanes 122 are arranged one by one opposite each other. The airflow adjustment member 120 is in the first state, and the wind type control mechanism 100 is in the wind gathering mode.

[0128] In combination with Figures 12 and 13, in an embodiment of the present application, a plurality of limit boxes 1123 arranged at intervals along the circumferential direction are provided on the fixed ring 112, and the limit boxes 1123 extend in the radial direction away from the central axis of the fixed ring 112. The plurality of limit boxes 1123 are arranged in a one-to-one correspondence with the plurality of pendulum blade mounting portions 1122. The driving rod 1322 is passed through the limit box 1123 and inserted into the driving groove 1135. The limit box 1123 can limit the driving rod 1322 in the circumferential direction to prevent the driving rod 1322 from being deformed during the driving process and affecting the driving effect on the pendulum blade 132, thereby ensuring that the rotating ring 113 can effectively drive the pendulum blade 132 through the driving rod 1322.

[0129] 1 to 4 , in some embodiments of the present application, adjacent swing blades 132 have overlapping areas in the circumferential direction of the bracket 110 .

[0130] The inner ends of the plurality of pendulum blades 132 are spaced apart in sequence in the circumferential direction, and parts of adjacent pendulum blades 132 can be overlapped. For example, the pendulum blade 132 can include a first pendulum blade 1323, a second pendulum blade 1324 and a third pendulum blade 1325, and the first pendulum blade 1323, the second pendulum blade 1324 and the third pendulum blade 1325 are arranged adjacent to each other in sequence. In the arrangement direction of the plurality of pendulum blades 132, one side of the first pendulum blade 1323 can be overlapped on the second pendulum blade 1324, and the side of the second pendulum blade 1324 away from the first pendulum blade 1323 can be overlapped on the third pendulum blade 1325, thereby achieving overlapping areas between adjacent pendulum blades 132 to prevent air leakage in the air duct adjustment component 130 due to gaps between adjacent pendulum blades 132, thereby ensuring the air outlet effect of the wind type control mechanism 100.

[0131] In some specific embodiments, there are 7 pendulum blades 132, and the width dimension of the pendulum blade 132 is H5, between 80mm≤H5≤100mm, to ensure that there is an overlapping area between adjacent pendulum blades 132. The number setting of the pendulum blades 132 and the size setting of the overlapping area between adjacent pendulum blades 132 can be determined according to the size of the wind type control mechanism 100, and no specific limitation is made here.

[0132] Here, the “width dimension of the swing blade 132 ” refers to the maximum distance between two adjacent side wall surfaces located between the air outlet end and the air inlet end of the swing blade 132 .

[0133] As shown in Figure 2, in some embodiments of the present application, in the wind gathering state, the cross-sectional area of ​​the air duct adjustment member 130 gradually decreases in the direction toward the air outlet 131; and / or in the wind dispersing state, the cross-sectional area of ​​the air duct adjustment member 130 gradually increases in the direction toward the air outlet 131.

[0134] In the wind gathering state, the distance between the inner wall of the duct adjusting member 130 and its central axis gradually decreases in the direction extending from the air flow adjusting member 120 to the air duct adjusting member 130 in the axial direction, that is, the air duct adjusting member 130 gradually shrinks and moves closer to its central axis to guide the airflow to gradually concentrate, which is beneficial to increase the flow distance of the airflow in the air outlet direction, and can enhance the intensity of the airflow, so that the airflow is stronger when flowing out from the wind type regulating mechanism 100.

[0135] The “inner wall” refers to a side wall of the air duct regulating member 130 close to the central axis thereof in the radial direction.

[0136] As shown in Figure 4, in the wind dispersion state, the distance between the inner wall of the duct adjustment member 130 and its central axis gradually increases in the direction extending from the air flow adjustment member 120 to the duct adjustment member 130 along the axial direction, that is, the cross-sectional area of ​​the duct adjustment member 130 gradually increases to guide the airflow to gradually diverge, increase the flow range of the airflow in the radial direction, reduce the intensity of the airflow, and make the airflow softer when flowing out of the wind type control mechanism 100.

[0137] Or, in the wind gathering state, the distance between the inner wall of the duct adjustment member 130 and its central axis gradually decreases in the direction extending from the air flow adjustment member 120 to the duct adjustment member 130 along the axial direction, and in the wind dispersing state, the distance between the inner wall of the duct adjustment member 130 and its central axis remains constant in the direction extending from the air flow adjustment member 120 to the duct adjustment member 130 along the axial direction.

[0138] Or, in the wind gathering state, the distance between the inner wall of the duct adjustment member 130 and its central axis remains constant in the direction extending from the air flow adjustment member 120 to the duct adjustment member 130 along the axial direction. In the wind dispersing state, the distance between the inner wall of the duct adjustment member 130 and its central axis gradually increases in the direction extending from the air flow adjustment member 120 to the duct adjustment member 130 along the axial direction.

[0139] In some embodiments of the present application, each swing blade 132 is formed as an arc-shaped plate.

[0140] Multiple pendulum blades 132 are arranged in sequence in the circumferential direction, and each pendulum blade 132 is formed as an arc-shaped plate, that is, in the radial direction, the inner wall of each pendulum blade 132 (that is, the side wall of the pendulum blade 132 close to the central axis of the air duct adjustment member 130 in the radial direction) is arc-shaped and bulges away from the central axis of the air duct adjustment member 130, so as to reduce the influence of the shape of the inner wall of the air duct adjustment member 130 on the airflow, thereby achieving the purpose of reducing wind resistance and ensuring the flow effect of the airflow.

[0141] As shown in FIG. 7 , in some embodiments of the present application, a guide portion 1326 is formed on one side of the swing blade 132 facing the central axis of the air duct adjustment member 130 , and the guide portion 1326 extends along the circumferential direction of the air duct adjustment member 130 .

[0142] One end of the pendulum blade 132 along the axial direction can be set to have a larger width and the other end to have a smaller width. The end with the smaller width is defined as the inner end of the pendulum blade 132. The inner end of the pendulum blade 132 is rotatably connected to the bracket 110, and the end with the larger width is defined as the free end. A guide portion 1326 is provided on the pendulum blade 132, and the guide portion 1326 is set to protrude toward one side of the central axis of the bracket 110 along the axial direction. The distance between the pendulum blade 132 at the guide portion 1326 and the central axis of the air duct adjustment member 130 is smaller than the distance between the pendulum blade 132 and the central axis of the air duct adjustment member 130 at other positions.

[0143] When the air flow flows into the duct adjusting member 130, the circumferential component of the air flow will converge toward the center axis of the duct adjusting member 130 under the action of the guide portion 1326 when it flows into the duct adjusting member 130. When the axial component of the air flow is low, part of the air flow flowing in the circumferential direction will converge in the axial direction, making the air flow out of the duct adjusting member 130 more concentrated and stronger.

[0144] As shown in Figure 3, in some embodiments of the present application, the multiple pendulum blades 132 include a main pendulum blade 1327 and a slave pendulum blade 1328. The main pendulum blade 1327 and the slave pendulum blade 1328 are at least partially overlapped. The main pendulum blade 1327 is suitable for driving the slave pendulum blade 1328 to rotate relative to the bracket 110 through the overlapping area, so that the area of ​​the air outlet 131 of the air duct adjustment member 130 can be adjusted.

[0145] The main pendulum blade 1327 can be connected to the rotating ring 113 for transmission. The rotating ring 113 drives the main pendulum blade 1327 to rotate relative to the bracket 110 to realize the outward opening and inward contraction of the main pendulum blade 1327. The main pendulum blade 1327 drives the slave pendulum blade 1328 to rotate relative to the bracket 110 through the overlapping area to realize the outward opening and inward contraction of the slave pendulum blade 1328, thereby realizing the adjustment of the air outlet 131 area of ​​the air duct adjustment member 130, so that the air outlet range of the wind type control mechanism 100 is different, thereby meeting the different usage requirements of users.

[0146] 2 and 4 , in some embodiments of the present application, in the wind gathering state, the contraction angle of the swing blade 132 is less than or equal to 45°, and in the wind dispersing state, the expansion angle of the swing blade 132 is less than or equal to 45°.

[0147] The angle between the axial direction of the pendulum blade 132 and the axial direction of the bracket 110 is a. When the pendulum blade 132 rotates and opens, the inner diameter of the air duct regulating member 130 gradually increases. When the pendulum blade 132 rotates to the maximum position relative to the bracket 110, a≤45°, so as to satisfy the effect of pressurization and deceleration when the inner diameter of the air duct regulating member 130 gradually expands, so that the blown wind is soothing and soft, and can avoid the airflow being under excessive pressure due to the excessively large angle a and unable to flow through the air duct regulating member 130, thereby preventing the airflow from losing its dynamic performance.

[0148] As the swing blade 132 rotates and contracts, the inner diameter of the air duct regulating member 130 gradually decreases. When the swing blade 132 rotates to its minimum position relative to the bracket 110, at this time, a≤45°, which can meet the effect of reducing pressure and increasing speed when the air duct regulating member 130 gradually contracts, making the blown air strong and concentrated, which can be used for rapid cooling. At the same time, it can avoid the inner diameter of the air duct regulating member 130 being too small due to an excessively large angle a, thereby preventing a sharp increase in resistance within the air duct regulating member 130, a sharp drop in static pressure, and the inability of airflow to flow through the air duct regulating member 130. Therefore, the above design can improve the functionality of the wind pattern control mechanism 100 and meet the different usage needs of users.

[0149] 2 , in some embodiments of the present application, the length of the air duct adjustment member 130 is H4 , where H4 > H3 .

[0150] The “length H4 of the air duct regulating member 130 ” refers to the distance between the air inlet end and the air outlet end of the air duct regulating member 130 .

[0151] The length of the air duct adjustment member 130 is greater than the axial dimension of the airflow adjustment member 120, so that the flow distance of the airflow in the air duct adjustment member 130 is greater than the distance the airflow flows through the airflow adjustment member 120, which is beneficial to improving the airflow guiding effect of the air duct adjustment member 130, thereby improving the airflow adjustment effect of the wind type control mechanism 100 on the airflow.

[0152] In some embodiments of the present application, H4≥40mm, and H4 / H3 satisfies: H4 / H3≥2.

[0153] By making H4 ≥ 40mm, the flow distance of the airflow in the air duct adjustment member 130 is guaranteed, and the adjustment effect of the air duct adjustment member 130 on the airflow is improved, which is beneficial to improving the adjustment effect of the wind type control mechanism 100 on the airflow. H4 is 40mm, so that while ensuring the adjustment effect of the air duct adjustment member 130 on the airflow, the occupied space of the air duct adjustment member 130 can be reduced, which is beneficial to reducing the occupied space of the wind type control mechanism 100.

[0154] Among them, when H4 is less than 40 mm, the flow distance of the airflow in the air duct adjustment component 130 is short, and the air duct adjustment component 130 has a poor adjustment effect on the airflow, which easily leads to a small difference in the wind feeling, affecting the user's experience.

[0155] By designing the dimensions of the airflow adjustment member 120 and the air duct adjustment member 130 so that H4 / H3≥2, it is beneficial to improve the adjustment effect of the wind pattern control mechanism 100 on the airflow and increase the difference in the wind feeling of the airflow.

[0156] 9 and 11 , in some embodiments of the present application, the width of the front guide vane 121 and the rear guide vane 122 is L1, and 2 mm ≤ L1 ≤ 5 mm.

[0157] The “width of the front guide vane 121 ” refers to the distance between the two adjacent side walls between the air inlet end and the air outlet end of the front guide vane 121 , and the “width of the rear guide vane 122 ” refers to the distance between the two adjacent side walls between the air inlet end and the air outlet end of the rear guide vane 122 .

[0158] 2mm≤L1≤5mm can meet the structural strength requirements of the front guide vane 121 and the rear guide vane 122, prevent the front guide vane 121 and the rear guide vane 122 from breaking, and at the same time reduce the space required for arranging the airflow adjustment member 120, and reduce the weight of the airflow adjustment member 120, thereby facilitating the lightweight design of the wind type control mechanism 100.

[0159] In conjunction with Figures 1 to 4, the wind type control mechanism 100 according to the present application includes: an air duct 101 having an air inlet side and an air outlet side, the air duct 101 restricting the air flow from the air inlet side to the air outlet side; an air duct adjustment member 130, the air duct adjustment member 130 is arranged on the air outlet side of the air duct 101, and the air duct adjustment member 130 is provided with an air flow adjustment chamber 133; an air flow adjustment member 120, the air flow adjustment member 120 is arranged opposite to the air flow adjustment chamber 133, and the air flow adjustment member 120 is configured to adjust the air flow inside the air flow adjustment chamber 133. Flow; the air flow adjustment member 120 has a first central axis; the inner wall of the air flow adjustment cavity 133 is deflected relative to the vertical plane of the first central axis under the action of the air duct adjustment member 130 to adjust the air flow out of the outer circle of the air flow adjustment cavity 133, thereby adjusting the air flow in the middle of the air flow adjustment cavity 133 through the air flow adjustment member 120 and adjusting the air flow in the outer circle of the air flow adjustment cavity 133 through the air duct adjustment member, so the air flow adjusted by the air flow adjustment member 120 and the air flow adjusted by the air duct adjustment member 130 can affect each other, thereby ensuring the air outlet effect.

[0160] The wind type control mechanism 100 has a wind gathering mode and a wind dispersion mode. The inner wall of the airflow regulating chamber 133 is deflected at a larger angle relative to the vertical plane in the wind dispersion mode than in the wind gathering mode, so that the airflow is restricted by the inner wall of the airflow regulating chamber 133 in the wind gathering mode, while in the wind dispersion mode, the airflow is guided outward by the inner wall of the airflow regulating chamber 133.

[0161] The wind type control mechanism 100 is provided with an air duct 101, and the air flow can flow from the air inlet side of the air duct 101 to the air outlet side of the air duct 101. The air duct 101 can limit the flow direction of the air flow, prevent the air flow from diverging, and ensure the air outlet effect of the wind type control mechanism 100.

[0162] The “first central axis” is arranged parallel to or colinear with the rotational central axis of the driving fan 300 .

[0163] The air duct regulating member 130 is located on the outlet side of the air duct 101. When the spirally flowing airflow flows into the airflow regulating chamber 133, the inner wall of the airflow regulating chamber 133 can guide the peripheral airflow (i.e., the portion of airflow relatively close to the inner wall of the airflow regulating chamber 133). The airflow regulating member 120 is directly opposite the airflow regulating chamber 133 and can guide the intermediate airflow of the spirally flowing airflow flowing into the airflow regulating chamber 133 (i.e., the portion of airflow relatively far from the inner wall of the airflow regulating chamber 133). By cooperating with the air duct regulating member 130 and the airflow regulating member 120, the wind pattern control mechanism 100 can adjust the overall airflow, thereby improving the airflow adjustment effect of the wind pattern control mechanism 100, and facilitating the improvement of the wind feel under different airflow modes. It should be noted that the airflow regulating member 120 can adjust the airflow direction before allowing the airflow to flow into the airflow regulating chamber 133, or the airflow regulating member 120 can be located inside the air duct regulating member 130 to guide and adjust the airflow flowing into it.

[0164] When the air duct regulating member 130 is adjusted, the inner wall of the airflow regulating cavity 133 formed by the air duct regulating member 130 can be deflected relative to the vertical plane of the first central axis, so that the regulating effect of the inner wall of the airflow regulating cavity 133 on the airflow can be adjusted.

[0165] The “vertical plane” does not refer to a plane extending in a vertical direction, but only means a plane perpendicular to the first central axis.

[0166] Specifically, the wind type control mechanism 100 has a wind gathering mode and a wind dispersion mode. When the wind type control mechanism 100 is in the wind gathering mode, the inner wall of the airflow adjustment cavity 133 is arranged at an angle to the vertical plane, and the inner wall of the airflow adjustment cavity 133 can regularize the airflow, so that the circumferential component velocity of the airflow is converted into an axial component velocity, thereby making the airflow flowing out of the air duct adjustment member 130 gather in the direction close to the first center axis.

[0167] When the wind type control mechanism 100 is in the wind dispersion mode, the angle formed between the inner wall of the airflow adjustment member 120 and the vertical plane is larger than when the wind type control mechanism 100 is in the wind gathering mode, so as to reduce the adjustment effect of the inner wall of the airflow adjustment cavity 133 on the circumferential component velocity of the airflow. When the airflow flows out from the air duct adjustment member 130, it can still maintain a certain circumferential component velocity, so that the airflow presents an overall cone-like shape when flowing out, and the airflow is in a divergent state.

[0168] Among them, when the wind type control mechanism 100 is in the wind gathering mode, the air duct adjustment member 130 is in the wind gathering state, and the air flow adjustment member 120 is in the first state, so that the air duct adjustment member 130 and the air flow adjustment member 120 can both play a role in converging the airflow, thereby ensuring the wind gathering effect of the wind type control mechanism 100; when the wind type control mechanism 100 is in the wind dispersing mode, the air duct adjustment member 130 is in the wind dispersing state, and the air flow adjustment member 120 is in the second state, so that the air duct adjustment member 130 and the air flow adjustment member 120 can both play a role in dispersing the airflow, thereby ensuring the wind dispersing effect of the wind type control mechanism 100

[0169] According to the wind type control mechanism 100 of the present application, an air flow adjustment member 120 and an air duct adjustment member 130 are provided, and the working states of the air flow adjustment member 120 and the air duct adjustment member 130 can be switched to adjust the air outlet intensity and air outlet range of the wind type control mechanism 100. In addition, the air duct adjustment member 130 can cooperate with the air flow adjustment member 120 so that the wind type control mechanism 100 can adjust the air flow as a whole, thereby improving the air flow adjustment effect of the wind type control mechanism 100, and the user can adjust the working state of the wind type control mechanism 100 according to actual usage needs to meet the user's usage needs and improve the user's usage experience.

[0170] In combination with Figures 1 to 4, in some embodiments of the present application, the airflow adjustment member 120 includes a plurality of guide vanes 1201 arranged at intervals around a first central axis, and a first airflow circulation pore 1202 is defined between adjacent guide vanes 1201 in a wind gathering mode, and a second airflow circulation pore 1203 is defined between adjacent guide vanes 1201 in a wind dispersing mode. In a direction parallel to the first central axis, the length of the first airflow circulation pore 1202 is greater than the length of the second airflow circulation pore 1203.

[0171] The airflow adjustment member 120 includes a plurality of guide vanes 1201, which extend radially outward around the first central axis, and a gap is formed between every two adjacent guide vanes 1201. The airflow can flow through the guide vanes 1201 through the gap between the two adjacent guide vanes 1201, so that the guide vanes 1201 can guide the airflow so that its circumferential component velocity is converted into an axial component velocity, and the airflow can flow in a direction close to the first central axis.

[0172] When the wind type control mechanism 100 is in the wind gathering mode, the gap defined between every two adjacent guide vanes 1201 is defined as the first airflow circulation pore 1202, and when the airflow adjustment member 120 is in the second state, the gap defined between every two adjacent guide vanes 1201 is defined as the second airflow circulation pore 1203, and in the direction parallel to the first center axis, the length of the first airflow circulation pore 1202 is greater than the length of the second airflow circulation pore 1203, that is, when the airflow adjustment member 120 is in the first state, the airflow adjustment member 120 has a long airflow guiding time, and the airflow adjustment member 120 has a good rectifying effect on the airflow, which can improve the effect of converting the circumferential component velocity of the airflow into the axial component velocity, so that the airflow converges in the direction close to the first center axis, thereby realizing the convergence effect of the airflow adjustment member 120 on the airflow.

[0173] When the wind type control mechanism 100 is in the dispersed wind mode, the airflow flows through the second airflow circulation hole 1203. Since the length of the second airflow circulation hole 1203 is relatively short, the airflow adjustment component 120 has a short guiding time for the airflow, and the overall guiding effect of the airflow adjustment component 120 is reduced. When the airflow flows through the airflow adjustment component 120, its circumferential component velocity can be effectively maintained, so that the airflow presents a cone-like shape as a whole when flowing out of the airflow adjustment component 120, ensuring the divergent state of the airflow.

[0174] The first central axis is arranged parallel to or collinear with the rotational center line of the driving fan 300 .

[0175] 15 and 16 , the fan 1000 according to the present application includes: a wind type regulating mechanism 100 and a driving fan 300 , the wind type regulating mechanism 100 is the above-mentioned wind type regulating mechanism 100 , and the driving fan 300 is located on the air inlet side of the airflow regulating member 120 .

[0176] A side of the airflow adjustment member 120 that is away from the air duct adjustment member 130 in the axial direction is defined as an air inlet side of the airflow adjustment member 120 .

[0177] The driving fan 300 drives the air to form an airflow, and the airflow flows through the airflow adjustment member 120 and the air duct adjustment member 130 in sequence. The airflow adjustment member 120 and the air duct adjustment member 130 guide the airflow, and the airflow flows out of the air duct adjustment member 130 and then flows out of the fan 1000, thereby realizing the air supply of the fan 1000.

[0178] Since the fan 1000 is provided with a wind type control mechanism 100, by setting an airflow adjustment member 120 and an air duct adjustment member 130, and the working states of the airflow adjustment member 120 and the air duct adjustment member 130 can be switched to adjust the air outlet intensity and air outlet range of the wind type control mechanism 100. In addition, the air duct adjustment member 130 can cooperate with the airflow adjustment member 120, so that the wind type control mechanism 100 can adjust the airflow as a whole, improve the adjustment effect of the wind type control mechanism 100 on the airflow, and the user can adjust the working state of the wind type control mechanism 100 according to actual use needs to meet the user's use needs and improve the user's use experience.

[0179] 12 , 13 and 17 , the fan 1000 is provided with a housing 200 , on which an air inlet area 210 and an air outlet area 220 are provided. The wind type regulating mechanism 100 and the driving fan 300 may be provided in the housing 200 .

[0180] The shell 200 is constructed as a cylindrical structure with a cavity. The shell 200 can serve as an installation carrier for the driving fan 300 and the wind type control mechanism 100. The driving fan 300 and the wind type control mechanism 100 can be installed in the shell 200. The shell 200 can protect the driving fan 300 and the wind type control mechanism 100 to prevent damage to the fan 1000 due to external debris entering the driving fan 300 or the wind type control mechanism 100.

[0181] An air inlet area 210 is formed on the rear side of the shell 200, and the outside air enters the shell 200 through the air inlet area 210. An air outlet area 220 is formed on the front side of the shell 200. The air outlet area 220 can be constructed as an opening formed on the front side of the shell 200. The driving fan 300 and the wind type control mechanism 100 can be installed in the shell 200 through the air outlet area 220 to facilitate the assembly of the fan 1000. At the same time, the air flow flows out of the air duct adjustment member 130 and flows out of the fan 1000 through the air outlet area 220, thereby realizing the air supply of the fan 1000.

[0182] The driving fan 300 may be disposed outside the housing 200 . The specific arrangement of the driving fan 300 may be determined according to the actual installation requirements of the fan 1000 and is not specifically limited here.

[0183] As shown in FIG. 17 , in some embodiments of the present application, when a toggle lever is provided on the rotating ring 113 , a through hole 230 is provided on the housing 200 , and the toggle lever passes through the through hole 230 and can slide in the through hole 230 .

[0184] The through hole 230 is configured as an oblong hole extending along the circumferential direction of the housing 200 . The user can drive the toggle lever to slide in the through hole 230 , thereby driving the rotating ring 113 to rotate relative to the bracket 110 through the toggle lever.

[0185] In some embodiments of the present application, a drive device support is further provided in the housing 200 . When the drive device is provided outside the bracket 110 , the drive device support is used to install and support the drive device.

[0186] In some embodiments of the present application, the wind type regulating mechanism 100 is detachably connected to the housing 200 .

[0187] 17 , a plurality of bracket mounting seats 114 arranged at intervals along the circumferential direction are provided on the bracket 110, and a plurality of bracket fixing seats 240 arranged along the circumferential direction of the shell 200 are provided in the shell 200. When the wind type control mechanism 100 is installed in the shell 200, the plurality of bracket mounting seats 114 are arranged in a one-to-one correspondence with the bracket fixing seats 240, and threaded holes are formed on the bracket mounting seats 114 and the bracket fixing seats 240. Threaded connectors can be passed through the threaded holes to connect the bracket mounting seats 114 and the bracket fixing seats 240, so that the wind type control mechanism 100 is connected to the shell 200, thereby realizing the detachable connection between the wind type control mechanism 100 and the shell 200, which is convenient for the disassembly, maintenance or replacement of the wind type control mechanism 100.

[0188] The air inlet end of the bracket 110 can be provided with a bracket ball head extending in the axial direction, and there can be two bracket ball heads, which are spaced apart in the radial direction. A slide groove can be provided on the outer shell 200, and the bracket ball head can be inserted into the slide groove at a certain angle, and the bracket 110 and the outer shell 200 can be fixed by rotation. When the wind type control mechanism 100 needs to be removed from the outer shell 200, it can be rotated in the opposite direction and the bracket ball head can be pulled out from the slide groove.

[0189] The air inlet end of the bracket 110 may be provided with an external thread, and the inner side of the housing 200 may be formed with an internal thread. The bracket 110 and the housing 200 may be detachably connected by a threaded connection, which facilitates the disassembly and assembly of the wind type control mechanism 100.

[0190] The air inlet end of the bracket 110 can be provided with a magnet seat, and the inner side of the shell 200 can be provided with a matching magnet. The magnet seat can be magnetically engaged with the matching magnet to install the wind type control mechanism 100 in the shell 200. The bracket 110 and the shell 200 are assembled by magnetic attraction, which facilitates the disassembly and assembly of the wind type control mechanism 100.

[0191] In some embodiments of the present application, the driving fan 300 is an axial flow fan.

[0192] The driving fan 300 is an axial flow fan, and the blades 310 of the driving fan 300 extend obliquely in the radial direction. When the multiple blades 310 rotate, the air on the side of the blades 310 away from the airflow adjustment member 120 is driven to flow toward the airflow adjustment member 120 to form an airflow. When the airflow flows through the blades 310, the blades 310 can guide the airflow to form an oblique airflow. At this time, the airflow has a component velocity along the axial direction and a component velocity along the circumferential direction.

[0193] The airflow adjustment member 120 and the air duct adjustment member 130 can guide the airflow, wherein, when the airflow adjustment member 120 is in the second state, the air duct adjustment member 130 is in the wind dispersion state, and the airflow adjustment member 120 and the air duct adjustment member 130 have little interference with the airflow, and the airflow can still maintain a certain circumferential component velocity when flowing out of the wind type control mechanism 100, so that the airflow flowing out of the wind type control mechanism 100 is softer in the radial direction.

[0194] When the airflow adjustment member 120 is in the first state, the air duct adjustment member 130 is in the wind gathering state. After the airflow hits the airflow adjustment member 120, the airflow adjustment member 120 guides the airflow, and the circumferential component velocity of the airflow is converted into the axial component velocity. After flowing through the airflow adjustment member 120, the airflow flows into the air duct adjustment member 130. The air duct adjustment member 130 regularizes the airflow flowing into it, so that the airflow flowing out of the air duct adjustment member 130 is more concentrated in the axial direction.

[0195] In combination with Figures 1 to 4, in some embodiments of the present application, the cross-section of each guide vane 1201 is formed as a curve, which is an Archimedean spiral. The bending direction of the curve is opposite to the rotation direction of the blade 310 driving the fan 300, and the cross-section is perpendicular to the rotation center line of the driving fan 300.

[0196] The rotation centerline of the driving fan 300 is arranged colinearly with the central axis of the bracket 110, and the front guide vane 121 and the rear guide vane 122 have the same structure. Taking the front guide vane 121 as an example, the cross-section of the front guide vane 121 perpendicular to the rotation centerline of the driving fan 300 is formed into an Archimedean spiral, and the bending direction of the curve (i.e., the rotation direction of the Archimedean spiral) is opposite to the rotation direction of the blade 310 of the driving fan 300. The rotation direction of the blade 310 of the driving fan 300 is the same as the component velocity direction of the airflow in the circumferential direction. Such an arrangement is conducive to allowing the airflow to flow through the airflow adjustment member 120 and contact the airflow adjustment member 120. The airflow can move along the wall surface of the front guide vane 121 (or the rear guide vane 122) in the direction of the central axis of the bracket 110, and the airflow can converge in the direction of the central axis of the bracket 110, thereby facilitating the increase of the axial component velocity of the airflow, reducing the airflow outlet area in the radial direction, and making the airflow strong.

[0197] As shown in FIG. 16 , on the first projection plane, the orthographic projection of the air duct space 111 covers the circle where the blade tips 311 of the plurality of blades 310 are located, and the first projection plane is perpendicular to the central axis of the bracket 110 .

[0198] The plurality of blades 310 are arranged in sequence along the axial direction. When the fan 300 is working, the plurality of blades 310 are driven to rotate. During the rotation process, the blades 310 drive the surrounding airflow to flow, thereby forming an airflow with a certain flow rate.

[0199] The “first projection surface” may be understood as a projection surface in the front-to-back direction or the thickness direction of the fan 1000 .

[0200] The airflow generated by the rotation of the blades 310 can flow into the air duct space 111. On the first projection plane, the outer edge of the positive projection of the air duct space 111 can be arranged around the outer circumference of the circle where the blade tips 311 of the multiple blades 310 are located, or the positive projection of the bracket 110 just coincides with the above-mentioned circle, which is conducive to making the airflow generated by the blades 310 all blown into the air duct space 111, thereby ensuring that the airflow generated by the blades 310 all flows through the airflow adjustment member 120, preventing the airflow from diverging inside the fan 1000, and effectively concentrating the airflow.

[0201] In the radial direction, the position where the blade 310 is farthest from the hub of the driving fan 300 is defined as the blade tip 311 of the blade 310 .

[0202] In this application, "on the first projection plane, the orthographic projection of the duct space 111 covers the circle where the blade tips 311 of multiple blades 310 are located" may mean that the outer edge of the orthographic projection of the duct space 111 just coincides with the above-mentioned circle, or it may mean that the outer edge of the orthographic projection of the duct space 111 is located outside the above-mentioned circle (that is, the above-mentioned circle falls within the orthographic projection of the duct space 111).

[0203] 16 , a portion of the blade 310 of the driving fan 300 extends into the air duct space 111 .

[0204] The radial dimension of the air duct space 111 can be larger than the radial dimension of the circle where the blade tips 311 of the multiple blades 310 are located, and a part of the blade 310 extends into the air duct space 111. The blade 310 rotates in the air duct space 111 and generates airflow. The inner wall surface of the bracket 110 can guide the airflow into the air duct space 111, and the inner wall surface of the bracket 110 can limit the flow of the airflow to prevent the airflow from diverging when it does not flow into the air duct space 111, thereby ensuring the flow efficiency of the airflow.

[0205] The ends of the blades 310 in the axial direction can be set in the air duct space 111, or all the blades 310 can be set in the air duct space 111. The specific arrangement of the blades 310 can be determined according to the size of the fan 1000 as a whole, the blades 310 and the bracket 110, and is not specifically limited here.

[0206] 16 , in a direction parallel to the rotation centerline of the driving fan 300 , the distance between the blade 310 of the driving fan 300 and the air inlet end of the airflow adjustment member 120 is L2 , 7 mm ≤ L2 ≤ 15 mm.

[0207] 7mm≤L2≤15mm so that the airflow formed by the rotation of the blades 310 flows toward the airflow adjustment member 120, which can prevent the risk of mutual interference caused by the distance between the blades 310 and the airflow adjustment member 120 being too small, and can avoid the airflow diverging in the housing 200 due to the distance between the blades 310 and the airflow adjustment member 120 being too large, thereby ensuring the effect of airflow flow and the feeling of wind output, and can make the structure of the fan 1000 compact and reduce the size of the fan 1000 in the axial direction, L2 is 10mm.

[0208] 16 , in some embodiments of the present application, on the first projection plane, the diameter of the circle where the blade tips 311 of the plurality of blades 310 are located is D, and the dimension of the blade 310 in a direction parallel to the central axis of the driving fan 300 is defined as the height dimension H6 of the blade 310, wherein D=180 mm, H6=80 mm, so as to improve the ability of the blade 310 to drive the airflow, improve the flow efficiency and strength of the airflow, and thus improve the wind feeling of the fan 1000.

[0209] 14 , through simulation analysis of the wind type control mechanism 100 provided with an air duct adjustment member 130 and an airflow adjustment member 120 in the present application, at the standard test distance, the blowing range of the fan 1000 when in the scattered wind mode is greater than the blowing range of the fan 1000 when in the gathered wind mode, and the average wind speed within the blowing range when the fan 1000 is in the scattered wind mode is less than the average wind speed within the blowing range when the fan 1000 is in the gathered wind mode, and the air output of the fan 1000 is soft.

[0210] The blowing range of fan 1000 when it is in wind gathering mode is smaller than that of fan 1000 when it is in wind dispersion mode, and the average wind speed within the blowing range when fan 1000 is in wind gathering mode is greater than the average wind speed within the blowing range when fan 1000 is in wind dispersion mode. The air output of fan 1000 is strong.

[0211] The "blowing range" refers to the area where the wind speed of the fan 1000 is greater than the calibrated wind speed (such as 0.4m / s), and the "standard test distance" is three times the diameter of the circle where the multiple blade tips 311 are located. When performing simulation analysis and test comparison on the fan 1000, it is not limited to measuring at the above-mentioned "standard test distance", as long as the fan 1000 is measured at the same position.

[0212] As shown in FIG. 18 , in some embodiments of the present application, the fan 1000 further includes an air outlet mesh cover 400 , which is disposed in the air outlet area 220 of the fan 1000 .

[0213] The air outlet mesh cover 400 is installed on the outer shell 200, the air outlet 131 of the air duct adjustment member 130 is opposite to the air outlet mesh cover 400, and a mesh structure is formed on the air outlet mesh cover 400 located in the air outlet area 220, and the air flow can be discharged through the mesh structure. At the same time, the air outlet mesh cover 400 can block the internal structure of the fan 1000 to prevent the blades 310 from breaking and flying out through the opening when the fan 1000 is working and causing harm to the user. At the same time, it can prevent the user from being injured by accidentally touching the blades 310, thereby improving the safety of the fan 1000, and the air outlet mesh cover 400 can also reduce the accumulation of dust and other debris inside the fan 1000.

[0214] 18 , in some embodiments of the present application, the air outlet grille 400 includes a middle area 410 and an outer ring area 420 , the air guide ribs 430 of the middle area 410 are formed as arc-shaped ribs 431 , and the air guide ribs 430 of the outer ring area 420 are formed as straight ribs 432 .

[0215] The middle area 410 and the outer ring area 420 are constructed in a ring shape, and the middle area 410 and the outer ring area 420 are arranged coaxially. The outer ring area 420 is arranged on the outside of the middle area 410 to realize the partition design of the air outlet mesh cover 400, which is not only beautiful, but also can realize the visualization of the air outlet area 220.

[0216] Since the area of ​​the air outlet 131 of the duct adjustment member 130 is different when it is in the wind dispersing state and the wind gathering state, the air outlet area 220 corresponding to the air outlet 131 of the duct adjustment member 130 when the fan 1000 is in the wind dispersing mode is different from the air outlet area 220 corresponding to the fan 1000 when it is in the wind gathering mode. When the duct adjustment member 130 is in the wind gathering state, the air outlet 131 is arranged opposite to the middle area 410, and the middle area 410 is opposite to the airflow adjustment member 120. The middle area 410 of the air outlet mesh cover 400 can rectify the airflow and increase the axial component velocity of the airflow. When the duct adjustment member 130 is in the wind dispersing state, the air outlet 131 is arranged opposite to the outer circle area 420 and the middle area 410 at the same time.

[0217] The air guide ribs 430 in the middle area 410 are formed as arc-shaped ribs 431, and the air guide ribs 430 in the outer ring area 420 are formed as straight ribs 432. The arc-shaped ribs 431 can be designed using the Archimedean spiral principle. Multiple arc-shaped ribs 431 are evenly spaced along the circumferential direction, and the bulging directions of the arc-shaped ribs 431 are all the same. The arc-shaped ribs 431 can effectively reduce the resistance of the air guide ribs 430 to the airflow, thereby effectively reducing the resistance of the air outlet mesh cover 400 to the airflow flow.

[0218] When the fan 1000 is in the wind gathering mode, the air outlet 131 is arranged opposite to the middle area 410. The airflow flows out of the air outlet 131 and flows to the middle area 410. The arc-shaped ribs 431 can play a role in rectifying the airflow to convert the circumferential component velocity of the airflow into the axial component velocity, thereby ensuring the convergence effect of the airflow and making the air outlet of the fan 1000 stronger.

[0219] The outer ring area 420 is provided with straight ribs 432 extending in the radial direction, and multiple straight ribs 432 are evenly spaced along the axial direction. When the fan 1000 is in the wind dispersion mode, the air outlet 131 is arranged opposite to the outer ring area 420 and the middle area 410 at the same time, and the air flow flows from the air outlet 131 to the outer ring area 420 and the middle area 410. The straight ribs 432 can maintain the component velocity of the air flow in the circumferential direction, thereby ensuring the flow area of ​​the air flow in the radial direction and ensuring the air outlet area of ​​the fan 1000 in the radial direction.

[0220] In some embodiments of the present application, in a direction away from the first central axis, the air outlet end of the straight rib 432 extends obliquely outward in a direction away from the rotation center line of the driving fan 300 .

[0221] In the extending direction of the linear rib 432 , the end of the linear rib 432 away from the bracket 110 is defined as the air outlet end of the linear rib 432 , and the end of the linear rib 432 close to the bracket 110 is defined as the air inlet end of the linear rib 432 .

[0222] In the radial direction of the air outlet area 220, the distance between the air inlet end of the straight rib 432 and the rotation center of the driving fan 300 is the smallest, and the distance between the air outlet end of the straight rib 432 and the rotation center of that fan is the largest, so that the straight rib 432 and the rotation center line of the driving fan 300 are arranged at an angle. The straight rib 432 generates little resistance to the airflow and maintains the circumferential component of the airflow, which is beneficial to ensuring the air outlet area of ​​the fan 1000 in the radial square.

[0223] In some embodiments of the present application, the inclination angle of the linear rib 432 relative to the rotation center line ranges from 20° to 40°.

[0224] The inclination angle between the straight rib 432 and the rotation center line ranges from 20° to 40°. This setting can ensure that the straight rib 432 has little resistance to the airflow and maintains the circumferential component of the airflow, which is beneficial to ensuring the air outlet area of ​​the fan 1000 in the radial square.

[0225] In some embodiments of the present application, when the air duct adjustment member 130 is in the wind dispersing state, the longitudinal section of the air duct adjustment member 130 extends obliquely outward in the direction away from the rotation center line of the driving fan 300 in the direction toward the air outlet 131 .

[0226] When the air duct regulating member 130 is in the wind dispersing state, the radial distance between the inner wall of the air duct regulating member 130 and the rotation center line of the driving fan 300 gradually increases in the direction toward the air outlet 131, wherein the radial distance between the inner wall of the air duct regulating member 130 close to the driving fan 300 and the rotation center line of the driving fan 300 is the smallest, and the radial distance between the inner wall of the air duct regulating member 130 away from the driving fan 300 and the rotation center line of the driving fan 300 is the largest. When the air duct regulating member 130 is in the wind dispersing state, the air outlet angle can be roughly parallel to the straight ribs 432 to reduce the air outlet resistance and maintain the circumferential component velocity of the airflow.

[0227] In some embodiments of the present application, the air outlet grille 400 is detachably disposed in the air outlet area 210 of the fan 1000 .

[0228] The air outlet mesh cover 400 can be snapped together with the outer shell 200 to cover the opening and prevent the fan 1000 from causing mechanical damage to the user, and the air outlet mesh cover 400 is detachably connected to the outer shell 200. When the fan 1000 fails, the air outlet mesh cover 400 can be removed from the outer shell 200 to facilitate the inspection and maintenance of the wind type control mechanism 100, thereby improving the maintenance convenience of the fan 1000.

[0229] Among them, the air outlet mesh cover 400 can be detachably connected to the outer shell 200 by means of threaded connection or snap connection. The specific connection method between the air outlet mesh cover 400 and the outer shell 200 is not specifically limited here, as long as the air outlet mesh cover 400 and the outer shell 200 are detachably connected.

[0230] In other embodiments of the present application, the bracket 110 can directly serve as the outer shell of the fan 1000, the air inlet area 210 and the air outlet area 220 can be formed on the bracket 110, and in this case, the air outlet mesh cover 400 is arranged on the bracket 110 and is detachably connected to the bracket 110.

[0231] In some embodiments of the present application, a rear mesh cover is provided on the rear side of the fan 1000, and an air inlet area 210 can be formed on the rear mesh cover. External air can flow into the fan 1000 through the rear mesh cover. The driving fan 300 can drive the blades 310 to rotate so that the air flowing into the fan 1000 forms an airflow and is blown out, and the airflow can flow through the wind type control mechanism 100. The wind type control mechanism 100 can make the airflow diverge or converge, and then the airflow passes through the air outlet mesh cover 400 and flows out of the fan 1000.

[0232] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions 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 suitable manner in any one or more embodiments or examples.

[0233] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A wind type control mechanism, wherein, Comprising: A bracket provided with an annular air duct space; An air flow regulating member disposed within the air duct space. The air flow regulating member includes multiple layers of guide vanes arranged in the front-rear direction. The multiple layers of guide vanes include a plurality of front guide vanes and a plurality of rear guide vanes. The plurality of front guide vanes are located on the air outlet front side of the plurality of rear guide vanes and are relatively rotatable. The plurality of front guide vanes are circumferentially spaced apart, and the plurality of rear guide vanes are circumferentially spaced apart. The air flow regulating member has a first state and a second state. In the first state, the plurality of front guide vanes and the plurality of rear guide vanes are at least partially overlapped in the front-rear direction. In the second state, the plurality of front guide vanes and the plurality of rear guide vanes are circumferentially misaligned.

2. The wind type control mechanism according to claim 1, wherein, In the first state, the plurality of front guide vanes and the plurality of rear guide vanes are arranged in a one-to-one facing manner in the front-rear direction. In the second state, the plurality of front guide vanes and the plurality of rear guide vanes are circumferentially misaligned.

3. The air pattern control mechanism according to claim 1 or 2, wherein, The bracket includes a fixed ring and a rotating ring. The rotating ring is rotatable relative to the fixed ring. One of the front guide vanes and the rear guide vanes is disposed on the fixed ring and the other is disposed on the rotating ring.

4. The air type regulation mechanism according to any one of claims 1-3, wherein, Both the front guide vanes and the rear guide vanes are formed in an arc shape.

5. The wind type control mechanism according to any one of claims 1-4, wherein, At least one layer of the guide vanes rotates relative to the remaining layers of the guide vanes within a set time period; or At least one layer of the guide vanes reciprocally rotates relative to the remaining layers of the guide vanes within a set time period.

6. The wind type control mechanism according to claim 5, wherein, At least one layer of the guide vanes reciprocally rotates relative to the remaining layers of the guide vanes within a set time period.

7. The air type control mechanism according to any one of claims 1-6, wherein, The widths of both the front guide vanes and the rear guide vanes are L1, where 2 mm ≤ L1 ≤ 5 mm.

8. An air flow pattern control mechanism, wherein, Comprising: An air duct having an air inlet side and an air outlet side. The air duct restricts the air flow to blow from the air inlet side to the air outlet side; An air flow regulating member disposed within the air duct. The air flow regulating member has a first central axis. The air flow regulating member includes a plurality of guide vanes spaced apart around the first central axis. The air flow regulating member has a first state and a second state. In the first state, a first air flow passage pore is defined between adjacent guide vanes. In the second state, a second air flow passage pore is defined between adjacent guide vanes. In the direction parallel to the first central axis, the length of the first air flow passage pore is greater than the length of the second air flow passage pore.

9. The air type control mechanism according to claim 8, wherein, Further comprising an annular bracket that defines the air duct, and the air flow regulating member is mounted to the bracket.

10. The wind type control mechanism according to claim 9 or 9, wherein, The number of the second air flow passage pores is greater than the number of the first air flow passage pores.

11. The wind type control mechanism according to any one of claims 1-10, wherein, The air flow regulating member is provided with a first central axis, and the plurality of guide vanes are spaced apart around the first central axis; The wind type control mechanism further includes an air duct adjusting member, the air duct adjusting member is formed with an air flow adjusting cavity, the inner wall of the air flow adjusting cavity deflects relative to the vertical plane of the first central axis under the action of the air duct adjusting member, the wind type control mechanism has a wind gathering mode and a wind dispersing mode, and the inner wall of the air flow adjusting cavity deflects a larger angle relative to the vertical plane in the wind dispersing mode than in the wind gathering mode, so that the air flow is restricted by the inner wall of the air flow adjusting cavity in the wind gathering mode, and the air flow diffuses outward under the guidance of the inner wall of the air flow adjusting cavity in the wind dispersing mode.

12. The wind type control mechanism according to claim 11, wherein, The air duct adjusting member is arranged on the bracket and located on the air outlet side of the air flow adjusting member, and the air outlet area of the air duct adjusting member in the wind gathering state is smaller than the air outlet area in the wind dispersing state.

13. The wind type control mechanism according to claim 12, wherein, The air duct adjusting member includes a plurality of swing blades, the plurality of swing blades are arranged circumferentially along the bracket of the wind type control mechanism, and each swing blade is rotatably arranged on the bracket.

14. The air type regulation mechanism according to claim 13, wherein, In the circumferential direction of the bracket, there is an overlapping area between adjacent swing blades.

15. The wind type adjustment mechanism according to any one of claims 12-14, wherein, In the wind gathering state, the cross-sectional area of the air duct adjusting member gradually decreases in the direction towards the air outlet; and / or In the wind dispersing state, the cross-sectional area of the air duct adjusting member gradually increases in the direction towards the air outlet.

16. A wind type control mechanism, wherein, Comprising: An air duct having an air inlet side and an air outlet side, the air duct restricting the air flow to blow from the air inlet side to the air outlet side; An air duct adjusting member arranged on the air outlet side of the air duct, the air duct adjusting member being provided with an air flow adjusting cavity; An air flow adjusting member, the air flow adjusting member being arranged opposite to the air flow adjusting cavity, the air flow adjusting member being configured to adjust the air flow inside the air flow adjusting cavity; the air flow adjusting member has a first central axis; The inner wall of the air flow adjusting cavity deflects relative to the vertical plane of the first central axis under the action of the air duct adjusting member to adjust the air flow of the outer ring of the air flow adjusting cavity.

17. The air type regulation mechanism according to claim 16, wherein, The wind type control mechanism has a wind gathering mode and a wind dispersing mode, and the inner wall of the air flow adjusting cavity deflects a larger angle relative to the vertical plane in the wind dispersing mode than in the wind gathering mode, so that the air flow is restricted by the inner wall of the air flow adjusting cavity in the wind gathering mode, and the air flow diffuses outward under the guidance of the inner wall of the air flow adjusting cavity in the wind dispersing mode.

18. The wind type control mechanism according to claim 17, wherein, The air flow adjusting member includes a plurality of guide vanes arranged at intervals around the first central axis. A first air flow passage pore is defined between adjacent guide vanes in the wind gathering mode, and a second air flow passage pore is defined between adjacent guide vanes in the wind dispersing mode. In the direction parallel to the first central axis, the length of the first air flow passage pore is greater than the length of the second air flow passage pore.

19. A fan, wherein, Comprising: A wind type control mechanism, the wind type control mechanism being the wind type control mechanism according to any one of claims 1-18; A driving fan, the driving fan being located on the air inlet side of the air flow adjusting member.

20. The fan according to claim 19, wherein, The driving fan is an axial flow fan.

21. The fan according to claim 20, wherein, The cross-section of each guide vane is formed as a curve, the curve is an Archimedean spiral, and the bending direction of the curve is opposite to the rotation direction of the blades of the driving fan, and the cross-section is perpendicular to the rotation center line of the driving fan; and / or A part of the blade of the driving fan extends into the air duct space; and / or In the direction parallel to the rotation center line of the driving fan, the distance between the blade of the driving fan and the air inlet end of the guide vane is L2, and 7mm ≤ L2 ≤ 15mm.

22. The fan according to any one of claims 19-21, wherein, It further includes an air outlet grille, and the air outlet grille is arranged in the air outlet area of the fan.

23. The fan according to claim 22, wherein, The air outlet grille includes an intermediate area and an outer ring area. The air guiding rib strips in the intermediate area are formed into arc-shaped rib strips, and the air guiding rib strips in the outer ring area are formed into straight rib strips.

24. The fan according to claim 23, wherein, In the axial direction away from the bracket, the air outlet end of the straight rib strip extends obliquely outward in the direction away from the rotation center line of the driving fan.

25. The fan according to claim 24, wherein, The value range of the inclination angle of the straight rib strip relative to the rotation center line is 20 - 40°.

26. The fan according to any one of claims 22-25, wherein, The air outlet grille is detachably arranged in the air outlet area of the fan.

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