An airfoil and an air conditioner including the same

Abstract

The present invention provides a wind blade and an air conditioner including the same, which relates to the technical field of air conditioners and solves the technical problem that the wind blades are not universal and cannot be respectively and adaptively connected to inner and outer rotor motors. The wind blade includes a wind blade body, a first component and an adapter. The wind blade body is connected to the first component through the adapter, or the wind blade body is directly connected to the first component; the first component is an inner rotor motor or an outer rotor motor. When the first component is an inner rotor motor, the wind blade body is in transmission connection with the inner rotor motor through the adapter; when the first component is an outer rotor motor, the wind blade body is in transmission connection with the outer rotor motor; the air conditioner includes the above-mentioned wind blade. The same wind blade of the present invention can be matched with different inner and outer rotor motors on different housings, enhancing the usability of the product and increasing the generalization rate of key components.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and more particularly to a wind blade and an air conditioner including the same. Background Art

[0002] In the prior art, most of the wind blades used in ceiling air conditioners are paired with inner rotor motors; with the innovation of technology, centrifugal wind blades for ceiling air conditioners with outer rotor motors have also emerged in the market. Due to the differences in the connection and fixing methods between the inner and outer rotor motors and the wind blade, generally, the wind blades paired with the two types of motors are not interchangeable. And during the project R & D process, if the height of the air conditioner housing changes and the wind blade cannot be installed according to the old installation structure, a new wind blade needs to be developed and a new mold needs to be opened, increasing the R & D cost. If the wind blade can be made universal and the problem of opening a new wind blade mold can be solved, the development cost will be greatly reduced. Summary of the Invention

[0003] The purpose of the present invention is to provide a wind blade and an air conditioner including the same, so as to solve the technical problems in the prior art that the wind blades are not universal and cannot be respectively and adaptively connected to the inner and outer rotor motors.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A wind blade provided by the present invention includes a wind blade body, a first component, and an adapter. The wind blade body is connected to the first component through the adapter, or the wind blade body is directly connected to the first component.

[0006] As a further improvement of the present invention, the first component is an inner rotor motor or an outer rotor motor. When the first component is an inner rotor motor, the wind blade body is drivingly connected to the inner rotor motor through the adapter; when the first component is an outer rotor motor, the wind blade body is drivingly connected to the outer rotor motor.

[0007] As a further improvement of the present invention, the adapter includes a connection portion detachably connected to the wind blade body and a shaft sleeve provided on the connection portion for the rotation shaft of the first component to pass through.

[0008] As a further improvement of the present invention, the connection portion is a cover-like structure, including a top portion, an extension portion, and a lower edge portion arranged in sequence. The shaft sleeve is provided at the center of the top portion, and the lower edge portion is attached to the top surface of the hub of the wind blade body.

[0009] As a further improvement of the present invention, the top portion is provided with a connection cylinder having a diameter and height adapted to the shaft sleeve, and the shaft sleeve is arranged in the inner cavity of the connection cylinder.

[0010] As a further improvement of the present invention, the top of the connecting cylinder protrudes from the upper top surface, or alternatively, the top of the connecting cylinder is flush with the upper top surface.

[0011] As a further improvement of the present invention, a strengthening structure is provided on the blade body corresponding to the connection part of the adapter.

[0012] As a further improvement of the present invention, the strengthening structure is a thickened boss.

[0013] As a further improvement of the present invention, the blade is a centrifugal blade, and the height A of the adapter is less than the distance S from the hub plane of the centrifugal blade to the air inlet.

[0014] An air conditioner provided by the present invention includes the above-mentioned blade.

[0015] The present invention has the following beneficial effects compared with the prior art:

[0016] For the blade provided by the present invention, the blade body can be directly connected to the first component or connected to the first component through the adapter. By these two connection methods, different types of first components can be connected to the blade body, increasing the usability of the product, improving the generalization level of the blade, reducing the development cost, reducing the number of molds, and reducing the mold opening cost. In an alternative embodiment of the present invention, when the blade is connected to an external rotor motor, it can be directly connected, and when the blade is connected to an internal rotor motor, it can be connected through the adapter. Thus, the problem that the installation methods of the blades for matching internal and external rotors are different, resulting in the same blade not being able to be used with different motors, that is, not being universal, is solved. Through the setting of the adapter, the same blade can be matched with different internal and external rotor motors on different housings, enhancing the usability of the product and increasing the generalization rate of key components. The adapter can also be used to adjust the installation height of the blade relative to the housing, solving the problem of needing to re-develop the blade for a new housing project, enabling the same blade to match the installation requirements of different height housings, significantly reducing the mold opening cost of the product, and reducing the R & D cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of an embodiment of the blade of the present invention;

[0019] Figure 2 It is a schematic structural diagram of the blade of the present invention viewed from the bottom upwards.

[0020] Figure 3 is a schematic structural view of another embodiment of the wind blade of the present invention;

[0021] Figure 4 is a top view of the adapter in the wind blade of the present invention;

[0022] Figure 5 is Figure 4 a sectional view taken along the AA direction of

[0023] In the figure, 1 is the wind blade body; 2 is the adapter; 21 is the connecting part; 22 is the bushing; 3 is the inner rotor motor; 4 is the outer rotor motor; 5 is the lower shock-absorbing rubber pad; 6 is the upper shock-absorbing rubber pad; 7 is the mounting hole; 8 is the thickened boss; 9 is the wind blade fixing part; 10 is the bolt; 11 is the washer nut; 12 is the cap nut; 13 is the cap screw. Specific Embodiments

[0024] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without any creative work fall within the scope of protection of the present invention.

[0025] Embodiment 1:

[0026] The present invention provides a wind blade, including a wind blade body 1, a first component and an adapter 2. The wind blade body 1 is connected to the first component through the adapter 2, or alternatively, the wind blade body 1 is directly connected to the first component.

[0027] For the wind blade provided by the present invention, the wind blade body can be directly connected to the first component or connected to the first component through the adapter. By these two connection methods, different types of first components can be connected to the wind blade body, increasing the usability of the product, improving the generalization level of the wind blade, reducing the development cost, reducing the number of molds, and reducing the mold opening cost.

[0028] Embodiment 2:

[0029] The present invention provides a wind blade, including a wind blade body 1, a first component and an adapter 2. The wind blade body 1 is connected to the first component through the adapter 2, or alternatively, the wind blade body 1 is directly connected to the first component.

[0030] It should be further explained that, in the present embodiment, the fan blade is a centrifugal fan blade, which means that the air enters axially and exits radially, and the centrifugal force is used to do work to increase the pressure of the air; the fan blade body 1 includes a hub, an annular base plate, an air inlet ring and blades, the circumferential edge of the hub is connected to the inner edge of the annular base plate, the air inlet ring and the annular base plate are in communication and are arranged at intervals, an air inlet is formed on the inner ring side of the air inlet ring, an air outlet is formed between the circumferential edge of the annular base plate and the outer ring side edge of the air inlet ring, and a plurality of blades are arranged between the annular base plate and the air inlet ring along the circumference of the air inlet ring.

[0031] In this embodiment, the first component is an inner rotor motor 3 or an outer rotor motor 4. When the first component is an inner rotor motor 3, the fan blade body 1 is transmission connected to the inner rotor motor 3 through the adapter 2; when the first component is an outer rotor motor 4, the fan blade body 1 is transmission connected to the outer rotor motor 4.

[0032] That is to say, the same fan blade body 1 can be connected to the inner rotor motor 3 or the outer rotor motor 4, which solves the problem that the same fan blade cannot be used with different motors due to the difference in the installation methods of the fan blades with inner and outer rotors, that is, the problem that the same fan blade cannot be used universally. By setting the adapter 2, the same fan blade can be matched with different inner and outer rotor motors on different housings, thereby enhancing the usability of the product and improving the universality of key components.

[0033] Furthermore, in the present embodiment, the centrifugal fan blade is a centrifugal fan blade of the type for installing an outer rotor motor 4, and the top of the hub is a flat structure, which can only be used to install the outer rotor motor 4 but not the inner rotor motor 3, because the inner rotor motor 3 has a long rotating shaft and needs to be used in conjunction with the shaft sleeve. Therefore, through the adapter 2 of the present invention, not only can the fan blade be installed with the outer rotor motor 4 but also with the inner rotor motor 3, but through the present invention, when the height of the air-conditioning casing changes, the fan blade can be installed in the first position by utilizing the first solution (the fan blade body 1 is directly connected to the outer rotor motor 4), and can be installed in the second position by utilizing the second solution (the fan blade body 1 is connected to the inner rotor motor 3 through the adapter 2), thereby realizing the adjustment of the installation position, that is, the height.

[0034] When the inner rotor motor 3 needs to be installed, in order to facilitate the connection with the adapter 2 and the rotating shaft of the inner rotor motor 3, an over-axis hole is provided on the hub, and three mounting holes 7 are also provided on the top of the hub. The adapter 2 is connected to the three mounting holes 7 on the top of the hub by bolts, and the rotating shaft of the inner rotor motor 3 is connected to the adapter 2 after passing through the over-axis hole. In this way, when the rotating shaft of the inner rotor motor 3 rotates, the centrifugal fan blades are driven to rotate together.

[0035] like Figure 1As shown, it is a cross-sectional schematic diagram of the fan blade body 1 when it is matched with the outer rotor motor 4. In the figure, it includes the outer rotor motor 4, the centrifugal fan blade body 1, the lower shock-absorbing rubber pad 5, the upper shock-absorbing rubber pad 6 (including the rubber pad and the metal washer), and the cap screw 13. After the outer rotor motor 4 is placed in the hub of the fan blade body 1, the lower shock-absorbing rubber pad 5 is set between the outer rotor motor 4 and the top surface of the hub, and the upper shock-absorbing rubber pad 6 is set between the cap screw 13 and the top surface of the hub, thereby realizing the transmission connection between the motor and the fan blade, and when the outer rotor motor 4 rotates, it drives the fan blade body 1 to rotate. Figure 2 As shown, three holes are also provided on the top surface of the hub of the fan blade body for the cap screws 13 on the outer rotor motor 4 to pass through.

[0036] like Figure 3 As shown, it is a cross-sectional schematic diagram of the fan body 1 when it is matched with the inner rotor motor 3. In the figure, it includes the inner rotor motor 3, the centrifugal fan body 1, the adapter 2 (including the connecting part 21 and the sleeve 22, wherein the sleeve 22 is a prior art product), the fan blade fixing part 9, the bolt 10, the washer nut 11 and the cap nut 12. Figure 2 As shown, three mounting holes 7 are arranged outside the three holes on the top surface of the hub of the fan body, and the three mounting holes 7 are used to connect with the adapter 2. Thickened bosses 8 are arranged at the three mounting holes 7. The large hole in the middle of the top surface of the hub is used for the shaft of the inner rotor motor 3 to extend.

[0037] Embodiment 3:

[0038] The present invention provides a fan blade, comprising a fan blade body 1, a first component and an adapter 2. The fan blade body 1 is connected to the first component via the adapter 2, or the fan blade body 1 is directly connected to the first component.

[0039] In this embodiment, the first component is an inner rotor motor 3 or an outer rotor motor 4. When the first component is an inner rotor motor 3, the fan blade body 1 is transmission connected to the inner rotor motor 3 through the adapter 2; when the first component is an outer rotor motor 4, the fan blade body 1 is transmission connected to the outer rotor motor 4.

[0040] Furthermore, the adapter 2 includes a connecting portion 21 detachably connected to the fan body 1 and a sleeve 22 arranged on the connecting portion 21 for the first component, that is, the rotating shaft of the inner rotor motor 3 to pass through.

[0041] When in use, the connecting part 21 is installed on the top of the hub of the fan blade, and then the rotating shaft of the inner rotor motor 3 is passed through the hub into the connecting part 21, and then passed through the sleeve 22 and fixed with the fan blade fixing part. The rotating shaft is connected to the sleeve 22, so that when the rotating shaft rotates, it drives the adapter 2 and the fan blade body 1 to rotate accordingly.

[0042] The adapter 2 can also be used to adjust the installation height of the fan blade relative to the shell, which solves the problem of having to redevelop the fan blade when a new shell project is in progress. This allows the same fan blade to match shell installation requirements of different heights, significantly reducing product mold costs and R&D costs.

[0043] In this embodiment, the connecting portion 21 is a cover-type structure, including an upper top, an extension portion and a lower edge portion arranged in sequence, the sleeve 22 is arranged at the center of the upper top, and the lower edge portion is attached to the top surface of the hub of the fan body 1.

[0044] As an optional embodiment of the present invention, the connecting portion 21 is a frustum-shaped structure, and the lower edge portion is horizontally extended outward. A fixing hole is provided at a corresponding position on the connecting portion 21. During installation, the fixing hole and the mounting hole 7 are aligned, and then a bolt is passed through and locked with a nut.

[0045] Furthermore, a connecting tube whose diameter and height match those of the shaft sleeve 22 is provided at the upper top, and the shaft sleeve 22 is arranged in the inner cavity of the connecting tube.

[0046] Furthermore, the top of the connecting tube protrudes from the upper top surface, such as Figure 3 As shown, it is an optional embodiment of the present invention, the top of the connecting tube protrudes from the upper top surface by a height equal to half the height of the connecting tube;

[0047] Alternatively, it may also be arranged that the top of the connecting tube is flush with the upper top surface (not shown in the figures).

[0048] It should be noted here that no matter which structure is adopted, it only needs to avoid interference between the fan blades and the housing, that is, the designed installation height can be ensured.

[0049] Furthermore, in order to improve the connection strength and the stability of the fan blade, a reinforcement structure is provided on the fan blade body 1 at the connection corresponding to the adapter 2 .

[0050] Specifically, a reinforcement structure is provided at the mounting hole 7 at the top of the hub of the fan body 1, so that when the connecting portion 21 is connected to the mounting hole 7 by bolts, not only the connection strength but also the fan blade strength can be ensured.

[0051] As an optional embodiment of the present invention, the reinforcement structure is a thickened boss 8. The increase of the embedded end is achieved by thickening the mounting hole 7;

[0052] As an optional embodiment of the present invention, the fan blade is a centrifugal fan blade, and the height A of the adapter 2 is less than the distance S from the hub plane of the centrifugal fan blade to the air inlet, which can reduce the working center of gravity of the fan blade, facilitate the dynamic balance of the fan blade, and obtain better wind noise.

[0053] The present invention also provides an air conditioner, comprising the above-mentioned fan blade.

[0054] As an alternative embodiment of the present invention, the above air conditioner is a ceiling-mounted air conditioner. As shown in Figure 3 , D is the diameter of the impeller body 1, H is the distance from the bottom of the impeller to the bottom plate of the ceiling-mounted air conditioner during actual operation of the impeller, β is the offset angle caused by dynamic imbalance during impeller operation, S is the height of the hub of the impeller body 1 from the air inlet, L is the hub height of the impeller body, d1 is the diameter of the rotating shaft of the inner rotor motor, and d2 is the diameter of the hub center hole of the impeller body 1. Figure 5 In , A is the height of the adapter.

[0055] In this embodiment, this new ceiling-mounted air conditioner adopts an integrated impeller to solve the problem of non-matching and non-universality between the inner and outer rotor motor impellers. During actual use, when installing the outer rotor motor 4, the structure shown in Figure 1 and Figure 2 is used for installation; the screw posts on the outer rotor motor 4 pass through the corresponding holes on the impeller hub. The upper and lower rubber pads can avoid direct contact between the impeller and the motor and play a shock-absorbing role. When installing the inner rotor motor 3, the structure shown in Figures 3 - 5 is used for installation; by adding an adapter 2 to the original impeller, the impeller can be matched with the inner rotor motor: the rotating shaft of the inner rotor motor 3 extends out from the center hole of the impeller hub, and the hole position of the mounting hole 7 at the connection between the adapter 2 and the impeller is thickened to form a thickened boss 8 to improve the local stress during impeller startup and rotation. The concave part of the adapter 2 is provided with reinforcing ribs to enhance the structural stress and anti-deformation ability.

[0056] In this embodiment, a center hole is provided in the center of the impeller hub for the rotating shaft of the inner rotor motor 3 to extend out. The diameter d2 of the center hole of the impeller body hub should be:

[0057]

[0058] The β angle is related to L, A, H, and D and satisfies the following relationship:

[0059]

[0060] Here, it should be noted first that "inward" is the direction towards the center of the accommodation space, and "outward" is the direction away from the center of the accommodation space.

[0061] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the attached Figure 1The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0062] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0063] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0065] In the description of this specification, the description with reference to terms such as "an embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0066] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims described above.

Claims

1. A wind blade, characterized in that, It includes a wind blade body, a first component, and an adapter. The wind blade body is connected to the first component through the adapter, or the wind blade body is directly connected to the first component; The first component is an inner-rotor motor or an outer-rotor motor. When the first component is an inner-rotor motor, the wind blade body is drivingly connected to the inner-rotor motor through the adapter; when the first component is an outer-rotor motor, the wind blade body is drivingly connected to the outer-rotor motor; A strengthening structure is provided on the wind blade body corresponding to the connection position of the adapter, and the strengthening structure is a thickened boss; The adapter includes a connection part detachably connected to the wind blade body and a bushing provided on the connection part for the rotation shaft of the first component to pass through; The connection part is of a cover structure, including a top part, an extension part, and a lower edge part arranged in sequence. The bushing is arranged at the center of the top part, and the lower edge part is attached to the top surface of the hub of the wind blade body; The top part is provided with a connection cylinder with a diameter and height adapted to the bushing, and the bushing is arranged in the inner cavity of the connection cylinder.

2. The wind blade according to claim 1, wherein The top of the connection cylinder protrudes from the surface of the top part, or the top of the connection cylinder is flush with the surface of the top part.

3. The wind blade according to claim 1, characterized in that, The wind blade is a centrifugal wind blade, and the height A of the adapter is less than the distance S from the hub plane of the centrifugal wind blade to the air inlet.

4. An air conditioner, characterized in that, It includes the wind blade according to any one of claims 1-3.

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