Method for determining parameters of air sweeping mechanism and air sweeping mechanism

Abstract

The present invention provides a method for determining parameters of a wind sweeping mechanism and a wind sweeping mechanism. The wind sweeping mechanism includes a wind sweeping connecting rod, a partition, a wind sweeping blade, and a driving connecting rod. The wind sweeping connecting rod includes a first connecting rod, a second connecting rod, and a third connecting rod connected in sequence. The partition has a clearance hole for the wind sweeping connecting rod to pass through. The method for determining parameters of the wind sweeping mechanism includes: projecting the wind sweeping mechanism downward in a vertical direction to form a top-down projection, and determining at least some parameters of the wind sweeping mechanism based on the top-down projection. The horizontal line passing through the driving connecting rod and the projection line of the second connecting rod on the top-down projection form a wind sweeping angle θ. The width of the clearance hole in the front-to-back direction is W. 孔 , the wind sweep angle θ and the width of the hole W 孔 The present invention solves the problem of high overall design difficulty of the special-shaped wind sweeping connecting rod in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of air-conditioning equipment, and in particular to a method for determining parameters of an air sweeping mechanism and an air sweeping mechanism. Background Art

[0002] At present, in air conditioners with automatic air sweeping function, the air sweeping blades are generally driven by air sweeping connecting rods, and the air sweeping blades generally move in parallel directions, which can save movement space and improve the reliability of the movement mechanism.

[0003] To simplify the design of the motion mechanism, the drive motor and connecting rod are typically aligned. However, for air conditioners with additional fresh air or other components, the internal space is compressed, and the positional relationship between the motor and the blades changes. This results in a significantly irregular design of the sweeping rod. The long straight area where the sweeping rod engages the sweeping blades is not aligned or aligned with the motor. This increases the overall design complexity, making it difficult to design a motion component that meets product requirements and provides high reliability in a single design. Summary of the Invention

[0004] The main purpose of the present invention is to provide a method for determining parameters of an air sweep mechanism and an air sweep mechanism, so as to solve the problem of the overall high design difficulty of the special-shaped air sweep connecting rod in the prior art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a method for determining parameters of a wind sweeping mechanism is provided, wherein the wind sweeping mechanism includes a wind sweeping link, a partition, a wind sweeping blade and a driving link, the wind sweeping link includes a first link, a second link and a third link connected in sequence, the first link is hinged to the driving link and is horizontally arranged, the two ends of the second link have a position difference in the front-to-back direction, the wind sweeping blade is arranged on the third link and the third link is horizontally arranged, and the partition has a clearance hole for the wind sweeping link to pass through; the method for determining parameters of the wind sweeping mechanism includes: the wind sweeping mechanism is projected downward in the vertical direction to form a top-view projection, and at least part of the parameters of the wind sweeping mechanism is determined according to the top-view projection; wherein, a wind sweeping angle θ is formed between a horizontal line passing through the driving link and a projection line of the second link on the top-view projection, and the width of the clearance hole in the front-to-back direction is W 孔 , the wind sweep angle θ and the width of the hole W 孔 There is a negative correlation between them.

[0006] Furthermore, the two ends of the second connecting rod have a height difference in the vertical direction, and the method for determining the parameters of the air sweeping mechanism further includes: projecting the air sweeping mechanism backward along the front-to-back direction to form an orthographic projection, and determining at least part of the parameters of the air sweeping mechanism according to the orthographic projection; wherein an angle γ less than 180 degrees is formed between the first connecting rod and the second connecting rod. 连 , the vertical height of the hole is H 孔 , angle γ连 Height H to the clearance hole 孔 There is a negative correlation between them.

[0007] Furthermore, the two ends of the second connecting rod have a height difference in the vertical direction. The method for determining the parameters of the air sweeping mechanism further includes: projecting the air sweeping mechanism backward along the front-back direction to form an orthographic projection, and determining at least part of the parameters of the air sweeping mechanism according to the orthographic projection; wherein the length of the first connecting rod is L 连 , the vertical height of the hole is H 孔 , the length of the first connecting rod L 连 Height H to the clearance hole 孔 There is a negative correlation between them.

[0008] Furthermore, the method for determining the parameters of the air sweeping mechanism further includes: the air sweeping angle θ and the width W of the clearance hole 孔 There is a trigonometric relationship between them.

[0009] Furthermore, the method for determining the parameters of the wind sweeping mechanism further includes: the distance between the rotation center of the driving connecting rod and the rotation center of the wind sweeping blade in the front-back direction is L0; the rotation radius of the driving connecting rod is R 驱 , the distance between the rotation center of the driving connecting rod and the clearance hole is L1, and L1>R 驱 ; The rotation radius of the sweeping blade is R 叶 ; Among them, the width of the hole W 孔 , wind sweeping angle θ, distance L0, distance L1, wind sweeping blade rotation radius R 叶 The following relationship is satisfied: 孔 =L0-L1tanθ+(L0 / sinθ-R 叶 )sinθ=2L0-L1tanθ-R 叶 sinθ.

[0010] Furthermore, the wind sweeping link has an initial position and a first extreme position. When the wind sweeping link is at the first extreme position, it is farther away from the wind sweeping blade than when it is at the initial position. The method for determining the parameters of the wind sweeping mechanism also includes: when the wind sweeping link is at the initial position, it intersects with the give-way hole to form a first point position; when the wind sweeping link is at the first extreme position, it intersects with the give-way hole to form a second point position; the front-to-back distance between the first point position and the second point position is the width of the give-way hole in the front-to-back direction.

[0011] Furthermore, the two ends of the second connecting rod have a height difference in the vertical direction, the wind sweeping connecting rod has an initial position and a first limit position, and the wind sweeping connecting rod is farther away from the wind sweeping blade when it is in the first limit position than when it is in the initial position; the wind sweeping mechanism parameter determination method further includes: if the wind sweeping connecting rod is in the first limit position, the third connecting rod is inserted into the clearance hole, then H 孔 =△H; where H 孔is the vertical height of the clearance hole, and △H is the vertical height difference between the rotation center of the driving connecting rod and the rotation center of the wind sweeping blade.

[0012] Furthermore, the two ends of the second connecting rod have a height difference in the vertical direction, the wind sweeping connecting rod has an initial position and a first limit position, and the wind sweeping connecting rod is farther away from the wind sweeping blade when it is in the first limit position than when it is in the initial position; the wind sweeping mechanism parameter determination method further includes: if the wind sweeping connecting rod is in the first limit position, the second connecting rod is inserted in the clearance hole, and the wind sweeping connecting rod is in the initial position, the second connecting rod is inserted in the clearance hole, then H 孔 =L1tanγ 连 Among them, H 孔 is the vertical height of the clearance hole, L1 is the distance between the rotation center of the driving connecting rod and the clearance hole, γ 连 The angle formed between the first connecting rod and the second connecting rod is less than 180 degrees.

[0013] Furthermore, the two ends of the second connecting rod have a height difference in the vertical direction, the wind sweeping connecting rod has an initial position and a first limit position, and the wind sweeping connecting rod is farther away from the wind sweeping blade when it is in the first limit position than when it is in the initial position; the wind sweeping mechanism parameter determination method further includes: if the wind sweeping connecting rod is in the first limit position, the second connecting rod is inserted into the clearance hole, and the wind sweeping connecting rod is in the initial position, the first connecting rod is inserted into the clearance hole, then H 孔 =(L1-L 连 +R 叶 cosθ)sinγ 连 Among them, H 孔 is the vertical height of the clearance hole, L1 is the distance between the rotation center of the driving connecting rod and the clearance hole, and L 连 is the length of the first connecting rod, R 叶 is the rotation radius of the swept blade; γ 连 The angle formed between the first connecting rod and the second connecting rod is less than 180 degrees.

[0014] Furthermore, the wind sweeping link has an initial position, a first extreme position, and a second extreme position, the first extreme position and the second extreme position are respectively located on both sides of the initial position, and the wind sweeping link is farther away from the wind sweeping blade when it is in the first extreme position than when it is in the initial position; the wind sweeping mechanism parameter determination method also includes: when the wind sweeping link moves from the initial position to the first extreme position, the rotation angle of the driving link is less than 90°, and when the wind sweeping link moves from the initial position to the second extreme position, the rotation angle of the driving link is 90°.

[0015] Furthermore, the method for determining the parameters of the air sweeping mechanism also includes: when the air sweeping connecting rod moves from the initial position to the first limit position, the rotation angle of the driving connecting rod is 90°-θ.

[0016] According to another aspect of the present invention, a wind sweeping mechanism is provided, comprising: a wind sweeping blade; a driving connecting rod, the wind sweeping blade and the driving connecting rod having a rotation center staggered in the front-to-back direction and / or vertical direction; a wind sweeping connecting rod, the wind sweeping connecting rod comprising a first connecting rod, a second connecting rod and a third connecting rod connected in sequence, the first connecting rod being hinged to the driving connecting rod and arranged horizontally, the two ends of the second connecting rod having a position difference in the front-to-back and / or vertical direction, the wind sweeping blade being arranged on the third connecting rod and the third connecting rod being arranged horizontally, a partition, the partition having a clearance hole for the wind sweeping connecting rod to pass through; wherein, the structural parameters of the wind sweeping connecting rod and the clearance hole are determined using the above-mentioned wind sweeping mechanism parameter determination method.

[0017] The technical solution of the present invention is applied to convert the three-dimensional structure into two-dimensional structure, that is, to project the air sweeping mechanism, such as by front view projection, top view projection, etc., so that the three-dimensional structure forms a two-dimensional plane. Then, based on the two-dimensional projection, the relative parameters between the components are calculated by using the relationship between the components, so as to obtain the specific parameters of the air sweeping mechanism required. In the top view projection, the air sweeping angle θ is proportional to the width W of the clearance hole. 孔 There is a negative correlation between them. When the sweeping angle θ increases, the required width W of the clearance hole 孔 Decrease, otherwise the width W of the hole will be 孔 When the sweep angle θ is reduced, it can be increased. The above method utilizes two-dimensional planar design and the parallelogram principle to identify the required design parameters. Furthermore, different control variables are used to determine the size of the clearance hole. Ultimately, a method for rapidly designing a kinematic mechanism with limited space and a special shape is developed. Compared to traditional three-dimensional design processes, this method saves design time and shortens the R&D cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 FIG4 shows a top view projection of the air sweeping mechanism in the method for determining air sweeping mechanism parameters of the present invention;

[0020] Figure 2 Shown Figure 1 The width W of the clearance hole when the air sweep connecting rod is at the initial position and the first limit position 孔 Schematic diagram of;

[0021] Figure 3 Shown Figure 1 The width W of the clearance hole when the air sweep connecting rod is at the initial position and the second limit position 孔 Schematic diagram of;

[0022] Figure 4 The figure shows the front projection of the air sweeping mechanism in the method for determining the parameters of the air sweeping mechanism of the present invention;

[0023] Figure 5 Shown Figure 4 The turning angle γ between the first link and the second link 连 Schematic diagram when enlarged;

[0024] Figure 6 Shown Figure 4 The length L of the first connecting rod 连 Schematic diagram when enlarged.

[0025] The above drawings include the following reference numerals:

[0026] 10. Wind sweeping connecting rod; 11. First connecting rod; 12. Second connecting rod; 13. Third connecting rod; 20. Clearance hole; 30. Wind sweeping blade; 40. Driving connecting rod. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0029] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0030] In order to solve the problem of high overall design difficulty of special-shaped air sweeping connecting rods in the prior art, the present invention provides an air sweeping mechanism parameter determination method and an air sweeping mechanism.

[0031] like Figures 1 to 6A method for determining parameters of a wind sweeping mechanism is shown, wherein the wind sweeping mechanism includes a wind sweeping link 10, a partition, a wind sweeping blade 30 and a driving link 40, the wind sweeping link 10 includes a first link 11, a second link 12 and a third link 13 connected in sequence, the first link 11 is hinged to the driving link 40 and is horizontally arranged, the two ends of the second link 12 have a position difference in the front-to-back direction, the wind sweeping blade 30 is arranged on the third link 13 and the third link 13 is horizontally arranged, and the partition has a clearance hole 20 for the wind sweeping link 10 to pass through; the method for determining parameters of the wind sweeping mechanism includes: projecting the wind sweeping mechanism downward in the vertical direction to form a top-view projection, and determining at least part of the parameters of the wind sweeping mechanism according to the top-view projection; wherein, a wind sweeping angle θ is formed between a horizontal line passing through the driving link 40 and a projection line of the second link 12 on the top-view projection, and the width of the clearance hole 20 in the front-to-back direction is W 孔 , the sweeping angle θ and the width W of the clearance hole 20 孔 There is a negative correlation between them.

[0032] In this embodiment, the three-dimensional structure is converted into a two-dimensional structure, that is, the air sweeping mechanism is projected, such as by front view projection, top view projection, etc., so that the three-dimensional structure forms a two-dimensional plane. Then, based on the two-dimensional projection, the relative parameters between the components are calculated by using the relationship formed between the components, so as to obtain the specific parameters of the air sweeping mechanism required. Among them, in the top view projection, the air sweeping angle θ is related to the width W of the clearance hole 20. 孔 There is a negative correlation between them. When the sweeping angle θ increases, the required width W of the clearance hole 20 孔 Decrease, on the contrary, the width W of the hole 20 is reduced. 孔 When the sweep angle θ is reduced, the sweep angle θ can be increased. The above method utilizes two-dimensional planar design and, based on the parallelogram principle, identifies the relationship parameters required for the design. Furthermore, the dimensions of the clearance hole 20 are determined through different control variable methods. Ultimately, a method for rapidly designing a kinematic mechanism with limited space and a special shape is developed. Compared to traditional three-dimensional design processes, this method saves design time and shortens the R&D cycle.

[0033] It should be noted that, taking the application of the air sweeping mechanism on the air conditioner as an example, the front and back, vertical, up and down mentioned in this embodiment are all based on the direction when the person is facing the air conditioner when using the air conditioner normally, unless otherwise specified. The side of the air conditioner facing the person, that is, the front panel of the air conditioner is the front, and the side of the air conditioner away from the person, that is, the back panel of the air conditioner is the back. The vertical and up and down directions are the up and down in the height direction. Figure 1 and Figure 4 In terms of top-down projection, Figure 1 In the front-to-back direction, the up-down direction is the up-down direction in the top-view projection, and the up-down direction is the inside-outside direction in the top-view projection; similarly, in the front-view projection, Figure 4In the figure, the front-to-back direction is the inside-outside direction of the front projection, and the up-down direction is the up-down direction of the front projection. At the same time, the numbers of the wind sweeping connecting rod 10 and its sub-components in the drawings of this embodiment are all projected lines.

[0034] The wind sweeping mechanism of this embodiment includes a wind sweeping blade 30, a drive link 40, a wind sweeping link 10, and a partition. The wind sweeping blade 30 is staggered with respect to the rotation center of the drive link 40 in the front-to-back direction and / or vertical direction. The wind sweeping link 10 of this embodiment is staggered both in the front-to-back direction and in the top-to-bottom direction with respect to the drive link 40. This embodiment is described using the wind sweeping link 10 located at the upper and rear right side of the drive link 40 as an example. Of course, its specific location can be changed as needed, and the principle remains the same as in this embodiment. The wind sweeping link 10 of this embodiment includes a first link 11, a second link 12, and a third link 13 connected in sequence. The first link 11 is hingedly connected to the drive link 40 and arranged horizontally. The two ends of the second link 12 have a position difference in the front-to-back and vertical directions. The wind sweeping blade 30 is mounted on the third link 13, which is arranged horizontally. The first link 11, the second link 12, and the third link 13 are fixedly connected to each other, and the wind sweeping link 10 as a whole forms a translational motion. The partition has a clearance hole 20 for the wind sweeping link 10 to pass through. The clearance hole 20 can prevent the wind sweeping link 10 from interfering with the partition when it moves, and the partition can prevent the generation of condensed water and prevent the air flow from entering other parts of the air conditioner. Since this embodiment takes the wind sweeping blade 30 located at the upper and rear right side of the driving link 40 as an example, the second link 12 of this embodiment extends obliquely from the first link 11 to the third link 13 in the direction from the first link 11 to the third link 13 to the upper and rear right side to the third link 13. On the one hand, the above-mentioned setting method satisfies the parallel movement of the wind sweeping link 10, so that the driving link 40 can drive the wind sweeping blade 30 to rotate through the wind sweeping link 10. On the other hand, it can reduce the movement space of the wind sweeping link 10, reduce the space occupied, and is conducive to miniaturization.

[0035] The various parameters of the aforementioned air sweep mechanism, such as the structural parameters of the air sweep connecting rod 10 and the clearance hole 20, can be determined using the air sweep mechanism parameter determination method provided in this embodiment. When determining the parameters, a portion of the parameters or a rough range of the parameters are first determined based on actual needs, and then the remaining required parameters can be calculated based on the determined known quantities.

[0036] In this embodiment, in addition to the position difference between the two ends of the second connecting rod 12 in the front-to-back direction, the two ends of the second connecting rod 12 also have a height difference in the vertical direction. Therefore, the method for determining the parameters of the air sweeping mechanism in this embodiment also includes: projecting the air sweeping mechanism backward along the front-to-back direction to form an orthographic projection, and determining at least part of the parameters of the air sweeping mechanism based on the orthographic projection. In other words, based on the parallelogram law, this embodiment projects the three-dimensional air sweeping mechanism in an orthographic and topographical view to form an orthographic projection and a topographic projection, and then analyzes and calculates the relationship between the various components based on the orthographic projection and the topographic projection, and derives and calculates other required parameters based on the determined known quantities, thereby obtaining the parameters of the entire air sweeping mechanism. In this way, the conversion from three-dimensional to two-dimensional is achieved, and a three-dimensional special-shaped motion mechanism can be quickly designed through two-dimensional projection.

[0037] It should be noted that since the specific structure of the above-mentioned air sweeping mechanism is not limited to the structure of this embodiment, when the specific structure of the air sweeping mechanism changes, the specific calculation process can be adjusted according to actual conditions, and the concept can be converted from three-dimensional to two-dimensional projection according to the method of this embodiment.

[0038] like Figures 4 to 6 As shown, in the front projection, the first connecting rod 11 and the second connecting rod 12 form an angle γ less than 180 degrees. 连 , that is, of the two angles formed between the first connecting rod 11 and the second connecting rod 12, the angle less than 180 degrees is the angle γ 连 , the vertical height of the hole 20 is H 孔 , angle γ 连 Height H of the clearance hole 20 孔 There is a negative correlation between them, that is, increasing the turning angle γ of the second connecting rod 12 连 Height H of the clearance hole 20 孔 Decrease, on the contrary, the height H of the hole 20 孔 Reduce the turning angle γ of the second connecting rod 12 连 Similarly, the length of the first connecting rod 11 is L 连 , the length L of the first connecting rod 11 连 Height H of the clearance hole 20 孔 There is a negative correlation between them, that is, the length L of the first connecting rod 11 is increased. 连 Height H of the clearance hole 20 孔 Decrease, on the contrary, the height H of the hole 20 孔 Reduce the length L of the first connecting rod 11 连 increase.

[0039] It should be noted that the distances, angles, and other parameters mentioned in this embodiment refer to the distances and angles in the corresponding projected view, not the distances and angles in the three-dimensional image. This is because during the projection process, some distances and angles may change, resulting in inconsistencies between the sizes in the projected view and the sizes in the three-dimensional image. Of course, some parameters remain constant, such as the width and height of the clearance hole 20 and the lengths of the first and third connecting rods 11 and 13.

[0040] It should also be noted that, in a top view, the relationship between the sweeping blade 30, the driving connecting rod 40 and the motor is as follows: Figure 1 As shown. The centers of the two large circles correspond to the rotation centers of the sweeping blade 30 and the driving link 40, respectively. Based on the parallelogram law, the radii of the two large circles are equal. Strictly speaking, since the motor also has a rotation radius, the length of the driving link 40 + the rotation radius of the driving motor = the rotation radius of the sweeping blade 30, thereby determining the length of the driving link 40. To simplify the model, this embodiment assumes that the movement of the driving link 40 is synchronized with the movement of the driving motor, and the deflection of the sweeping blade 30 is a straight line. In this case, the deflection angles of the driving link 40 and the sweeping blade 30 are consistent, that is, the length of the driving link 40 = the rotation radius of the sweeping blade 30.

[0041] In this embodiment, the method for determining the parameters of the air sweeping mechanism further includes: the air sweeping angle θ and the width W of the clearance hole 20 孔 There is a trigonometric relationship between them.

[0042] Specifically, the width W of the clearance hole 20 is 孔 ,like Figures 1 to 3 As shown in the top view, the distance between the rotation center of the driving link 40 and the rotation center of the sweeping blade 30 in the front-to-back direction is L0; the rotation radius of the driving link 40 is R 驱 The distance between the rotation center of the driving connecting rod 40 and the clearance hole 20 is L1. In order to avoid interference, it is necessary to ensure that L1>R 驱 ; The rotation radius of the sweeping blade 30 is R 叶 Then, the width W of the hole 20 is 孔 , sweeping angle θ, distance L0, distance L1, rotation radius R of the sweeping blade 30 叶 The following relationship is satisfied: 孔 =L0-L1tanθ+(L0 / sinθ-R 叶 )sinθ, after simplification, we can get W 孔 =2L0-L1tanθ-R 叶 sinθ.

[0043] like Figure 1As shown, in this embodiment, the wind sweeping link 10 has an initial position, a first limit position and a second limit position. When the driving link 40 is positioned forward, the wind sweeping link 10 is in the initial position, and the wind sweeping blade 30 is also in the forward position, that is, the extension direction of the driving link 40 and the wind sweeping blade 30 is forward, that is, according to the Figure 1 The first limit position and the second limit position are located on opposite sides of the initial position, and the first link 11 of the wind sweeping link 10 is farther away from the wind sweeping blade 30 when it is in the first limit position than when it is in the initial position. Figure 1 In the top view shown, since the sweeping blade 30 of this embodiment is located on the right side, when the drive link 40 rotates to the left, the sweeping link 10 moves to the left, i.e., toward the first extreme position, until the sweeping link 10 moves past the center of rotation and reaches the first extreme position, at which point the sweeping blade 30 is also located at the left sweeping extreme position. When the drive link 40 rotates to the right, the sweeping link 10 moves to the right, i.e., toward the second extreme position, until the drive link 40 rotates a certain degree and reaches the second extreme position, at which point the sweeping blade 30 is also located at the right sweeping extreme position. Of course, the specific movement method is not limited to the method described above in this embodiment and can also be adjusted accordingly based on actual needs such as the installation location.

[0044] Based on the above configuration, the method for determining the parameters of the wind sweeping mechanism of this embodiment further includes: when the wind sweeping link 10 moves from the initial position to the first extreme position, the rotation angle of the driving link 40 is less than 90°. This is because when the driving link 40 rotates leftward to drive the wind sweeping link 10 to the first extreme position, the driving link 40, the wind sweeping link 10, and the wind sweeping blade 30 are no longer able to drive the wind sweeping blade 30 to the left due to the structure. Due to the inclined setting of the second link 12, the rotation angle of the driving link 40 does not exceed 90°. Unlike the first extreme position, when the wind sweeping link 10 moves from the initial position to the second extreme position, the rotation angle of the driving link 40 can be 90°.

[0045] Furthermore, based on the limitation of the wind sweep angle θ in the top projection, the method for determining the parameters of the wind sweep mechanism also includes: the rotation angle of the wind sweep link 10 when rotating from the initial position to the first extreme position is 90°-θ.

[0046] Based on the various positions of the above-mentioned air sweeping mechanism, the air sweeping mechanism parameter determination method of this embodiment also includes: when the air sweeping link 10 is in the initial position, it intersects with the give-way hole 20 to form a first point position; when the air sweeping link 10 is in the first extreme position, it intersects with the give-way hole 20 to form a second point position; the front-to-back distance between the first point position and the second point position is the width of the give-way hole 20 in the front-to-back direction.

[0047] Specifically, if Figure 2 As shown in the figure, the two solid lines and the two dotted lines are respectively W when the wind sweeping link 10 is at the initial position and the first limit position under different wind sweeping angles θ. 孔 situation; similarly, Figure 3 As shown in the figure, the two solid lines and the two dotted lines are respectively W when the wind sweeping link 10 is at the initial position and the second limit position under different wind sweeping angles θ. 孔 The intersection of the wind sweeping connecting rod 10 and the clearance hole 20 in the figure is the above-mentioned point. Figure 2 and Figure 3 As can be seen from the solid line in the figure, when the wind sweeping link 10 is at the initial position and the first extreme position, the distance between the first point and the second point is the largest, and the required width of the clearance hole 20 is also the largest. When it is at the initial position and the second extreme position, the required width of the clearance hole 20 is smaller. Therefore, the distance between the first point and the second point formed when the wind sweeping link 10 is at the initial position and the first extreme position is used as the width of the clearance hole 20. In this way, it can ensure that the wind sweeping link 10 avoids the partition during the entire movement process, ensuring the avoidance effect of the clearance hole 20 and avoiding interference. Figure 2 and Figure 3 Comparing the solid line and the dotted line in FIG, it can be seen that when the sweeping angle θ increases, the maximum angle of the left sweeping, that is, the rotation angle of the first limit position decreases, and the width requirement of the clearance hole 20 decreases, that is, the aforementioned sweeping angle θ and the width W of the clearance hole 20 are 孔 There is a negative correlation between them.

[0048] In this embodiment, the method for determining the parameters of the air sweeping mechanism further includes: calculating the height H of the clearance hole 20 according to the specific connecting rod passing through the clearance hole 20 when the air sweeping connecting rod 10 is at the first limit position. 孔 , the height H of the clearance hole 20 孔 The calculation is performed in the orthographic projection. Specifically, in the orthographic projection, if Figures 4 to 6 As shown, the three lines in each figure are the position states of the wind sweeping link 10 when it is at the first limit position, the initial position and the second limit position. The difference between the three figures is Figure 5 The angle γ formed by the first connecting rod 11 and the second connecting rod 12 连 The size of the other two is different, and Figure 6 The length of the first connecting rod 11 is different from the other two.

[0049] If the wind sweeping link 10 is at the first limit position, the third link 13 is inserted into the clearance hole 20, that is, Figure 4 In the case shown, H 孔 =△H;

[0050] If the wind sweeping link 10 is at the first limit position, the second link 12 is inserted into the clearance hole 20, and if the wind sweeping link 10 is at the initial position, the second link 12 is inserted into the clearance hole 20, that is, Figure 5 In the case shown, H 孔 =L1tanγ 连 ;

[0051] If the wind sweeping link 10 is at the first limit position, the second link 12 is inserted into the clearance hole 20, and if the wind sweeping link 10 is at the initial position, the first link 11 is inserted into the clearance hole 20, that is, Figure 6 In the case shown, H 孔 =(L1-L 连 +R 叶 cosθ)sinγ 连 ;

[0052] In the above formulas, H 孔 is the vertical height of the clearance hole 20, ΔH is the vertical height difference between the rotation center of the driving link 40 and the rotation center of the sweeping blade 30, L1 is the distance between the rotation center of the driving link 40 and the clearance hole 20, γ 连 The angle between the first connecting rod 11 and the second connecting rod 12 is less than 180 degrees, L 连 is the length of the first connecting rod 11, R 叶 It is the rotation radius of the wind sweeping blade 30.

[0053] In this way, various parameters can be associated with the height of the clearance hole 20 according to different states. During design, the required parameters can be calculated based on the determined known quantities.

[0054] In addition, in the above Figures 4 to 6 In Figure 4 and Figure 5 By comparison, it can be seen that the length L of the first connecting rod 11 连 Under the condition of no change, increase the angle γ of the wind sweeping link 10 连 , the height H of the clearance hole 20 孔 Decrease, that is, the aforementioned angle γ 连 Height H of the clearance hole 20 孔 There is a negative correlation between Figure 4 and Figure 6 By comparison, we can get that at the angle γ 连 Under the condition of no change, increase the length L of the first connecting rod 11 连 , the height H of the clearance hole 20 孔 Reduce, that is, the length L of the first connecting rod 11 连 Height H of the clearance hole 20 孔 There is a negative correlation between them.

[0055] It should be noted that, in the above embodiments, a plurality refers to at least two.

[0056] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0057] 1. It solves the problem of high overall design difficulty of the special-shaped wind sweep connecting rod in the prior art;

[0058] 2. A method that can quickly design motion mechanisms with limited space and special shapes. Compared with the traditional 3D design process, it saves design time and shortens the R&D cycle;

[0059] 3. The parallel movement of the wind sweeping connecting rod is satisfied, so that the driving connecting rod can drive the wind sweeping blade to rotate through the wind sweeping connecting rod, reducing the movement space of the wind sweeping connecting rod, reducing space occupation, and being conducive to miniaturization.

[0060] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0061] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the vertical text clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0062] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0063] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A method for determining parameters of a sweeping mechanism, characterized in that: The wind sweeping mechanism comprises a wind sweeping connecting rod (10), a partition, a wind sweeping blade (30) and a driving connecting rod (40), wherein the wind sweeping connecting rod (10) comprises a first connecting rod (11), a second connecting rod (12) and a third connecting rod (13) connected in sequence, wherein the first connecting rod (11) is hinged to the driving connecting rod (40) and is horizontally arranged, and the two ends of the second connecting rod (12) have a position difference in the front-back direction, the wind sweeping blade (30) is arranged on the third connecting rod (13) and the third connecting rod (13) is horizontally arranged, and the partition has a clearance hole (20) for the wind sweeping connecting rod (10) to pass through; The method for determining parameters of the air sweeping mechanism includes: The air sweeping mechanism is projected downward in a vertical direction to form a top-view projection, and at least part of the parameters of the air sweeping mechanism is determined according to the top-view projection; The horizontal line passing through the driving connecting rod (40) and the projection line of the second connecting rod (12) on the top view form a sweep angle θ, and the width of the clearance hole (20) in the front-to-back direction is W. 孔 , the wind sweeping angle θ and the width W of the clearance hole (20) 孔 There is a negative correlation between them.

2. The method for determining parameters of an air sweeping mechanism according to claim 1, wherein: The two ends of the second connecting rod (12) have a height difference in the vertical direction, and the method for determining the parameters of the air sweeping mechanism further includes: The air sweeping mechanism is projected backward along the front-to-back direction to form an orthographic projection, and at least part of the parameters of the air sweeping mechanism are determined according to the orthographic projection; The first connecting rod (11) and the second connecting rod (12) form an angle γ less than 180 degrees. 连 The vertical height of the clearance hole (20) is H 孔 , the angle γ 连 The height H of the clearance hole (20) 孔 There is a negative correlation between them.

3. The method for determining parameters of an air sweeping mechanism according to claim 1, wherein: The two ends of the second connecting rod (12) have a height difference in the vertical direction, and the method for determining the parameters of the air sweeping mechanism further includes: The air sweeping mechanism is projected backward along the front-to-back direction to form an orthographic projection, and at least part of the parameters of the air sweeping mechanism are determined according to the orthographic projection; Wherein, the length of the first connecting rod (11) is L 连 The vertical height of the clearance hole (20) is H 孔 , the length L of the first connecting rod (11) 连 The height H of the clearance hole (20) 孔 There is a negative correlation between them.

4. The method for determining parameters of an air sweeping mechanism according to claim 1, wherein: The method for determining parameters of the air sweeping mechanism further includes: the air sweeping angle θ and the width W of the clearance hole (20) 孔 There is a trigonometric relationship between them.

5. The method for determining parameters of an air sweeping mechanism according to claim 1, wherein: The method for determining parameters of the air sweeping mechanism further includes: The distance between the rotation center of the driving connecting rod (40) and the rotation center of the wind sweeping blade (30) in the front-back direction is L0; The rotation radius of the driving connecting rod (40) is R 驱 The distance between the rotation center of the driving connecting rod (40) and the clearance hole (20) is L1, and L1>R 驱 ; The rotation radius of the wind sweeping blade (30) is R 叶 ; Wherein, the width W of the said clearance hole (20) is 孔 , the wind sweeping angle θ, the distance L0, the distance L1, the rotation radius R of the wind sweeping blade (30) 叶 The following relationship is satisfied: 孔 =L0-L1tanθ+(L0 / sinθ-R 叶 )sinθ=2L0-L1tanθ-R 叶 sinθ.

6. The method for determining parameters of an air sweeping mechanism according to claim 1, wherein: The wind sweeping connecting rod (10) has an initial position and a first limit position. When the wind sweeping connecting rod (10) is at the first limit position, it is further away from the wind sweeping blade (30) than when it is at the initial position. The wind sweeping mechanism parameter determination method further includes: When the wind sweeping connecting rod (10) is located at the initial position, it intersects with the clearance hole (20) to form a first point position. When the wind sweeping connecting rod (10) is located at the first limit position, it intersects with the clearance hole (20) to form a second point position. The front-to-back distance between the first point position and the second point position is the width of the clearance hole (20) in the front-to-back direction.

7. The method for determining parameters of an air sweeping mechanism according to claim 1, wherein: Two ends of the second connecting rod (12) have a height difference in the vertical direction, the wind sweeping connecting rod (10) has an initial position and a first limit position, and the wind sweeping connecting rod (10) is farther away from the wind sweeping blade (30) when it is at the first limit position than when it is at the initial position; The method for determining parameters of the air sweeping mechanism further includes: If the wind sweeping connecting rod (10) is located at the first limit position, the third connecting rod (13) is inserted into the clearance hole (20), then H 孔 =△H; Among them, H 孔 is the height of the clearance hole (20) in the vertical direction, and ΔH is the height difference between the rotation center of the driving connecting rod (40) and the rotation center of the wind sweeping blade (30) in the vertical direction.

8. The method for determining parameters of an air sweeping mechanism according to claim 2, wherein: Two ends of the second connecting rod (12) have a height difference in the vertical direction, the wind sweeping connecting rod (10) has an initial position and a first limit position, and the wind sweeping connecting rod (10) is farther away from the wind sweeping blade (30) when it is at the first limit position than when it is at the initial position; The method for determining parameters of the air sweeping mechanism further includes: If the wind sweeping connecting rod (10) is located at the first limit position, the second connecting rod (12) is inserted into the clearance hole (20), and if the wind sweeping connecting rod (10) is located at the initial position, the second connecting rod (12) is inserted into the clearance hole (20), then H 孔 =L1tanγ 连 ; Among them, H 孔 is the vertical height of the clearance hole (20), L1 is the distance between the rotation center of the driving connecting rod (40) and the clearance hole (20), γ 连 An included angle smaller than 180 degrees is formed between the first connecting rod (11) and the second connecting rod (12).

9. The method for determining parameters of an air sweeping mechanism according to claim 3, wherein: Two ends of the second connecting rod (12) have a height difference in the vertical direction, the wind sweeping connecting rod (10) has an initial position and a first limit position, and the wind sweeping connecting rod (10) is farther away from the wind sweeping blade (30) when it is at the first limit position than when it is at the initial position; The method for determining parameters of the air sweeping mechanism further includes: If the wind sweeping connecting rod (10) is located at the first limit position, the second connecting rod (12) is inserted into the clearance hole (20), and the wind sweeping connecting rod (10) is located at the initial position, the first connecting rod (11) is inserted into the clearance hole (20), then H 孔 =(L1-L 连 +R 叶 cosθ)sinγ 连 ; Among them, H 孔 is the height of the clearance hole (20) in the vertical direction, L1 is the distance between the rotation center of the driving connecting rod (40) and the clearance hole (20), and L 连 is the length of the first connecting rod (11), R 叶 is the rotation radius of the wind sweeping blade (30); γ 连 An included angle smaller than 180 degrees is formed between the first connecting rod (11) and the second connecting rod (12).

10. The method for determining parameters of an air sweeping mechanism according to claim 1, wherein: The wind sweeping connecting rod (10) has an initial position, a first limit position, and a second limit position, wherein the first limit position and the second limit position are respectively located on both sides of the initial position, and the wind sweeping connecting rod (10) is farther away from the wind sweeping blade (30) when it is located at the first limit position than when it is located at the initial position; The method for determining parameters of the air sweeping mechanism further includes: When the wind sweeping link (10) moves from the initial position to the first extreme position, the rotation angle of the driving link (40) is less than 90°, and when the wind sweeping link (10) moves from the initial position to the second extreme position, the rotation angle of the driving link (40) is 90°.

11. The method for determining parameters of an air sweeping mechanism according to claim 10, wherein: The method for determining parameters of the air sweeping mechanism further includes: when the air sweeping connecting rod (10) moves from the initial position to the first limit position, the rotation angle of the driving connecting rod (40) is 90°-θ.

12. A wind sweeping mechanism, characterized in that: include: Sweep blades (30); A driving connecting rod (40), wherein the wind sweeping blade (30) and the rotation center of the driving connecting rod (40) are staggered in the front-to-back direction and / or the vertical direction; A wind sweeping link (10), the wind sweeping link (10) comprising a first link (11), a second link (12) and a third link (13) connected in sequence, the first link (11) being hinged to the driving link (40) and arranged horizontally, the two ends of the second link (12) having a position difference in the front-back and / or vertical directions, the wind sweeping blade (30) being arranged on the third link (13) and the third link (13) being arranged horizontally, A partition plate having a clearance hole (20) for the wind sweeping connecting rod (10) to pass through; The structural parameters of the air sweeping connecting rod (10) and the clearance hole (20) are determined by the air sweeping mechanism parameter determination method according to any one of claims 1 to 9.

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