Fan structure and air conditioner

Abstract

The present invention provides a fan structure and an air conditioner. The fan structure includes an air outlet component; a heat exchange component, which is arranged at an interval from the air outlet component to form a flow channel for air flow between the air outlet component and the heat exchange component; one end of the flow channel close to the heat exchange component has an air inlet, and one end of the flow channel close to the air outlet component has an air outlet, and the air inlet and the air outlet are arranged in parallel; a wind blade component, which is rotatably arranged in the flow channel, and blades are arranged on the wind blade component to drive the blades to rotate through the wind blade component, so that the air flow flows from the air inlet to the air outlet; wherein, a wind guiding plane is arranged at one end of the wind blade component close to the heat exchange component, and the wind guiding plane is arranged in parallel with both the air inlet and the air outlet; the distance between the wind guiding plane and the air outlet is L1, and the distance between the wind guiding plane and the air inlet is L2; wherein, L1:L2 = 0.7, which solves the problem of low heat exchange efficiency of the air conditioner in the prior art.

Description

Technical Field

[0001] The present invention relates to the field of air conditioners, and more particularly, to a fan structure and an air conditioner. Background Art

[0002] In current side-outlet air conditioner outdoor units, generally, an axial flow fan blade rotates to make air flow in a directional manner to achieve the purpose of enhancing heat exchange. Generally speaking, the larger the amount of air flow, that is, the larger the air volume, the higher the heat exchange efficiency; heat exchange efficiency is a very crucial influencing factor for the capacity and energy efficiency of the air conditioner.

[0003] However, during the operation of the air conditioner, the air volume is affected by factors such as the size of the housing, the specifications of the heat exchanger, the structure of the fan blade, and the layout of the fan. The size of the housing, the specifications of the heat exchanger, the structure of the fan blade, etc. are restricted by objective conditions or technical bottlenecks. Therefore, the existing air conditioner outdoor units have the problem of unreasonable structural design, which affects the heat exchange efficiency of the machine. Summary of the Invention

[0004] The main object of the present invention is to provide a fan structure and an air conditioner to solve the problem of low heat exchange efficiency of the existing air conditioner.

[0005] To achieve the above object, according to one aspect of the present invention, a fan structure is provided, including: an air outlet component; a heat exchange component, which is arranged at an interval from the air outlet component to form a flow channel for air flow between the air outlet component and the heat exchange component; one end of the flow channel close to the heat exchange component has an air inlet, and one end of the flow channel close to the air outlet component has an air outlet, and the air inlet and the air outlet are arranged in parallel; a fan blade component, rotatably arranged in the flow channel, and blades are arranged on the fan blade component to drive the blades to rotate through the fan blade component so that air flow flows from the air inlet to the air outlet; wherein, a wind guiding plane is arranged at one end of the fan blade component close to the heat exchange component, and the wind guiding plane is arranged in parallel with both the air inlet and the air outlet; the distance between the wind guiding plane and the air outlet is L1, and the distance between the wind guiding plane and the air inlet is L2; wherein, L1:L2 = 0.7.

[0006] Furthermore, the fan blade component includes a plurality of sequentially connected connecting parts, one ends of the plurality of connecting parts are respectively connected to the wind guiding plane, and the other ends of the plurality of connecting parts are all located on the side of the wind guiding plane far from the air inlet; there are a plurality of blades, and the plurality of blades are correspondingly arranged on the plurality of connecting parts.

[0007] Furthermore, one end of the blade close to the air inlet has a sweeping end, and the sweeping end is located between the wind guiding plane and the air inlet.

[0008] Furthermore, the fan structure further includes a housing, the flow channel is located in the housing, and the heat exchange component and the air outlet component are both installed on the housing.

[0009] Further, the fan structure further includes: a motor bracket connected to the casing; a driving motor disposed on the motor bracket, and a blade assembly disposed on the driving shaft of the driving motor.

[0010] Further, there are a plurality of driving motors, and the plurality of driving motors are spaced apart on the motor bracket; there are a plurality of blade assemblies, and the plurality of blade assemblies are provided corresponding to the plurality of driving motors one by one.

[0011] Further, there are a plurality of air outlet components, and the plurality of air outlet components are provided corresponding to the plurality of blade assemblies one by one; a discharge port for communicating with the air outlet is provided on each of the plurality of air outlet components.

[0012] Further, a plurality of air inlet grilles are respectively provided on the plurality of air outlet components, the plurality of air inlet grilles are spaced apart, and the discharge port is provided between two adjacent air inlet grilles.

[0013] Further, the fan structure further includes a wind guiding component, a wind guiding channel is provided in the wind guiding component, one end of the wind guiding channel communicates with the air outlet, and the other end of the wind guiding channel communicates with the flow channel; the wind guiding channel includes a first wind guiding channel at one end close to the air outlet, and along the direction from the air inlet to the air outlet, the cross-sectional area of the first wind guiding channel gradually increases; the wind guiding channel includes a second wind guiding channel at one end far from the air outlet, and along the direction from the air inlet to the air outlet, the cross-sectional area of the second wind guiding channel gradually decreases.

[0014] According to another aspect of the present invention, an air conditioner is provided, including a fan structure, and the fan structure is the above-mentioned fan structure.

[0015] Applying the technical solution of the present invention, the fan structure includes an air outlet component; a heat exchange component, the heat exchange component is spaced apart from the air outlet component to form a flow channel for air flow between the air outlet component and the heat exchange component; one end of the flow channel close to the heat exchange component has an air inlet, and one end of the flow channel close to the air outlet component has an air outlet, and the air inlet and the air outlet are arranged in parallel; a blade assembly rotatably disposed in the flow channel, and blades are provided on the blade assembly to drive the blades to rotate through the blade assembly, so that the air flow flows from the air inlet to the air outlet; wherein, a wind guiding plane is provided at one end of the blade assembly close to the heat exchange component, and the wind guiding plane is arranged in parallel with both the air inlet and the air outlet; the distance between the wind guiding plane and the air outlet is L1, and the distance between the wind guiding plane and the air inlet is L2; wherein, L1:L2 = 0.7. With the above arrangement, the structure and position of the blade assembly can be optimized, so that the flow rate and air volume of the air flow flowing in from the air inlet and the flow rate and air volume of the air flow flowing out from the air outlet can be better balanced, the air supply efficiency of the fan structure is improved, and the problem of low heat exchange efficiency of the air conditioner in the prior art is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 shows a schematic structural diagram of the fan structure of the present invention;

[0018] Figure 2 shows Figure 1 a partial enlarged view of part I of the fan structure in;

[0019] Figure 3 shows a schematic structural diagram of the connection part of the blade component of the fan structure of the present invention;

[0020] Figure 4 shows a front view of the fan structure of the present invention;

[0021] Figure 5 shows a working principle diagram of the fan structure of the present invention;

[0022] Figure 6 shows a curve graph of the relationship between L1 / L2 and the air volume.

[0023] Among them, the above-mentioned drawings include the following reference numerals:

[0024] 1. Air outlet component; 11. Air outlet; 12. Air inlet grille; 2. Heat exchange component; 3. Flow channel; 31. Air inlet; 32. Air outlet; 4. Blade component; 41. Blade; 411. Sweeping end; 42. Air guiding plane; 43. Connection part; 5. Housing; 6. Motor bracket; 7. Driving motor; 8. Air guiding component; 81. Air guiding channel; 811. First air guiding channel; 812. Second air guiding channel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0026] See Figures 1 to 6, the fan structure of this embodiment includes: an air outlet component 1; a heat exchange component 2, which is arranged at an interval from the air outlet component 1 to form a flow channel 3 for air flow between the air outlet component 1 and the heat exchange component 2; one end of the flow channel 3 close to the heat exchange component 2 has an air inlet 31, and one end of the flow channel 3 close to the air outlet component 1 has an air outlet 32, and the air inlet 31 and the air outlet 32 are arranged in parallel; a blade component 4, which is rotatably arranged in the flow channel 3, and blades 41 are arranged on the blade component 4 to drive the blades 41 to rotate through the blade component 4, so that air flows from the air inlet 31 to the air outlet 32; wherein, a guiding plane 42 is arranged at one end of the blade component 4 close to the heat exchange component 2, and the guiding plane 42 is arranged in parallel with both the air inlet 31 and the air outlet 32; the distance between the guiding plane 42 and the air outlet 32 is L1, and the distance between the guiding plane 42 and the air inlet 31 is L2; wherein, L1:L2 = 0.7. With the above settings, the structure and position of the blade component 4 can be optimized, so that the flow rate and air volume of the air flowing in from the air inlet 31 and the flow rate and air volume of the air flowing out from the air outlet 32 can be better balanced, the air supply efficiency of the fan structure can be improved, and the problem of low heat exchange efficiency of the air conditioner in the prior art is solved.

[0027] In the fan structure of this embodiment, referring to Figure 3 , the blade component 4 includes a plurality of connecting parts 43 connected in sequence. One ends of the plurality of connecting parts 43 are respectively connected to the guiding plane 42, and the other ends of the plurality of connecting parts 43 are all located on the side of the guiding plane 42 away from the air inlet 31; there are a plurality of blades 41, and the plurality of blades 41 are arranged on the plurality of connecting parts 43 in one-to-one correspondence. With the above settings, the surface area of the blade component 4 can be increased to facilitate the arrangement of a plurality of blades 41, thereby reducing the length of the blade component 4 in the air flow direction and reducing the wind resistance.

[0028] In the fan structure of this embodiment, referring to Figure 3 , one end of the blade 41 close to the air inlet 31 has a sweeping end 411, and the sweeping end 411 is located between the guiding plane 42 and the air inlet 31. In this way, the blade 41 makes full use of the space in the flow channel 3 and can stir the air in the flow channel 3 in a larger range, improving the air supply capacity of the fan structure.

[0029] In the fan structure of this embodiment, referring to Figure 4 , the fan structure further includes a housing 5, the flow channel 3 is located in the housing 5, and the heat exchange component 2 and the air outlet component 1 are both installed on the housing 5.

[0030] Referring to Figure 1 、 Figure 6, in the fan structure of this embodiment, the fan structure further includes: a motor bracket 6, the motor bracket 6 is connected to the casing 5; a driving motor 7, the driving motor 7 is arranged on the motor bracket 6, and the blade assembly 4 is arranged on the driving shaft of the driving motor 7. The above arrangement is simple and easy to implement, reducing the manufacturing cost of the fan structure.

[0031] In the fan structure of this embodiment, refer to Figures 1 to 5 , there are multiple driving motors 7, and the multiple driving motors 7 are arranged on the motor bracket 6 at intervals; there are multiple blade assemblies 4, and the multiple blade assemblies 4 are arranged in one-to-one correspondence with the multiple driving motors 7.

[0032] Refer to Figures 1 to 5 , in the fan structure of this embodiment, there are multiple air outlet components 1, and the multiple air outlet components 1 are arranged in one-to-one correspondence with the multiple blade assemblies 4; a discharge port 11 for communicating with the air outlet 32 is arranged on each of the multiple air outlet components 1.

[0033] Refer to Figure 1 , in the fan structure of this embodiment, multiple air inlet grilles 12 are respectively arranged on the multiple air outlet components 1, the multiple air inlet grilles 12 are arranged at intervals, and the discharge port 11 is arranged between two adjacent air inlet grilles 12.

[0034] In the fan structure of this embodiment, the fan structure further includes a wind guiding component 8. A wind guiding channel 81 is arranged in the wind guiding component 8. One end of the wind guiding channel 81 is communicated with the air outlet 32, and the other end of the wind guiding channel 81 is communicated with the flow channel 3; the wind guiding channel 81 includes a first wind guiding channel 811 at one end close to the air outlet 32. Along the direction from the air inlet 31 to the air outlet 32, the cross-sectional area of the first wind guiding channel 811 gradually increases; the wind guiding channel 81 includes a second wind guiding channel 812 at one end far from the air outlet 32. Along the direction from the air inlet 31 to the air outlet 32, the cross-sectional area of the second wind guiding channel 812 gradually decreases.

[0035] With the above arrangement, it is possible to avoid the mutual interference of the flowing air currents in different air outlet components 1, and by arranging the first wind guiding channel 811 and the second wind guiding channel 812, the air current in the wind guiding channel 81 flows more smoothly, increasing the air outlet efficiency of the fan structure.

[0036] Specifically, the flow channel 3 in this embodiment is arranged in the wind guiding component 8, and the flow channel 3 is a cylindrical channel.

[0037] The air conditioner of this embodiment includes a fan structure, and the fan structure is the above-mentioned fan structure.

[0038] An air conditioner outdoor unit generally includes a fan system, a heat exchanger, a compressor, pipelines, an electric control unit, a panel, a grille, etc. The fan system is generally located in front of the heat exchanger, such asFigure 1 As shown. The fan structure of this embodiment includes a motor bracket 6, a driving motor 7, a blade component 4 and blades 41 on the blade component 4. The driving motor 7 is assembled on the motor bracket 6, and the blade component 4 is assembled on the output shaft of the driving motor 7. The motor bracket 6 is located between the air outlet component 1 and the heat exchange component 2, as Figure 2 shown. The fan structure of this embodiment mainly realizes the directional and rapid flow of air through the rotation of the blade component 4, so as to exchange heat with the heat exchange component 2. The volume of air flowing per unit time is called the air volume, and the size of the air volume directly affects the heat exchange capacity of the fan structure.

[0039] Generally, the blades used in air conditioner outdoor units are axial flow blades. The characteristic of axial flow blades is that they return air along the axial direction and also discharge air along the axial direction. Therefore, the return air volume and the discharge air volume directly determine the overall air volume; when the housing size, blade structure, and rotation speed are fixed, the axial position of the fan in the housing along the blade axis has a great influence on the return air volume and the discharge air volume, and thus directly affects the air volume of the whole machine. The axial position of the fan in the housing can be represented by L1 and L2. L1 is the distance from the air guiding plane 42 at the root of the blade component 4 to the grille, and L2 is the distance from the root of the blade to the heat exchanger, as Figure 3 shown; the return air side wind speed is v0, and the discharge air speed is v1, as Figure 5 shown. The closer to the blade, the larger the values of v0 and v1, and the smaller the values of v0 and v1 away from the blade. Therefore, when L1 is smaller, when the air flowing out of the air outlet 32 contacts the air outlet component 1, the air volume is more concentrated and the wind speed v1 is larger. However, the air outlet component 1 has a certain resistance, and the greater the wind speed, the greater the overall turbulence and the greater the resistance, resulting in a smaller discharge air volume; when L2 is smaller, the return air coverage area is smaller and the return air volume is smaller; when L2 is larger, the return air area is larger, but the return air speed v0 is also smaller. At this time, the negative pressure between the blade and the heat exchange component 2 is smaller, and the return air volume passing through the heat exchange component 2 is also smaller.

[0040] The relationship between L1 and L2 has a great influence on the air volume of the whole machine, and this embodiment has clear range requirements for it. To obtain the best ratio, first set L1 / L2 = 1, and then increase and decrease its ratio respectively, and test the corresponding air volume. The results are shown in Figure 6 .

[0041] From Figure 6 it can be seen that when L1 / L2 = 0.7, the air volume is the largest, that is, the layout of the fan structure is the most reasonable at this time.

[0042] The position ratio value of the fan structure of this embodiment in the whole machine can achieve the best air volume effect under the conditions of the same blades, housing, rotation speed, etc., greatly improving the heat exchange capacity of the whole machine.

[0043] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0044] The fan structure of the present invention includes an air outlet component 1; a heat exchange component 2, which is arranged at intervals with the air outlet component 1 to form a flow channel 3 for air flow between the air outlet component 1 and the heat exchange component 2; one end of the flow channel 3 close to the heat exchange component 2 has an air inlet 31, and one end of the flow channel 3 close to the air outlet component 1 has an air outlet 32, and the air inlet 31 and the air outlet 32 are arranged in parallel; a blade component 4, rotatably arranged in the flow channel 3, and blades 41 are arranged on the blade component 4 to drive the blades 41 to rotate through the blade component 4, so that the air flow flows from the air inlet 31 to the air outlet 32; wherein, a guiding plane 42 is arranged at one end of the blade component 4 close to the heat exchange component 2, and the guiding plane 42 is arranged in parallel with both the air inlet 31 and the air outlet 32; the distance between the guiding plane 42 and the air outlet 32 is L1, and the distance between the guiding plane 42 and the air inlet 31 is L2; wherein, L1:L2 = 0.7. With the above arrangement, the structure and position of the blade component 4 can be optimized, so that the flow rate and air volume of the air flow flowing in from the air inlet 31 and the flow rate and air volume of the air flow flowing out from the air outlet 32 can be better balanced, the air supply efficiency of the fan structure is improved, and the problem of low heat exchange efficiency of the air conditioner in the prior art is solved.

[0045] 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 context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0046] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0047] In the description of the present application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary description, these directional terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present application; the directional terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0048] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. may be used here to describe the spatial positional relationship of one device or feature shown in the drawings with other devices or features. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation described in the drawings for the device. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0049] In addition, it should be noted that the use of words such as "first", "second" etc. to limit components is only for the convenience of differentiating the corresponding components. Without additional statement, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present application.

[0050] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A fan structure, characterized in that, Comprising: An air outlet component (1); A heat exchange component (2), the heat exchange component (2) is arranged at an interval from the air outlet component (1) to form a flow channel (3) for air flow between the air outlet component (1) and the heat exchange component (2); one end of the flow channel (3) close to the heat exchange component (2) has an air inlet (31), one end of the flow channel (3) close to the air outlet component (1) has an air outlet (32), and the air inlet (31) and the air outlet (32) are arranged in parallel with each other; A fan blade component (4), rotatably arranged in the flow channel (3), and blades (41) are arranged on the fan blade component (4) to drive the blades (41) to rotate through the fan blade component (4) so that air flows from the air inlet (31) to the air outlet (32); wherein, a wind guiding plane (42) is arranged at one end of the fan blade component (4) close to the heat exchange component (2), and the wind guiding plane (42) is arranged in parallel with both the air inlet (31) and the air outlet (32); the distance between the wind guiding plane (42) and the air outlet (32) is L1, and the distance between the wind guiding plane (42) and the air inlet (31) is L2; wherein, L1:L2 = 0.

7.

2. The blower structure according to claim 1, characterized in that, The fan blade component (4) includes a plurality of connecting parts (43) connected in sequence, one ends of the plurality of connecting parts (43) are respectively connected to the wind guiding plane (42), and the other ends of the plurality of connecting parts (43) are all located on the side of the wind guiding plane (42) away from the air inlet (31); there are a plurality of the blades (41), and the plurality of blades (41) are arranged on the plurality of connecting parts (43) in one-to-one correspondence.

3. The blower structure according to claim 1, characterized in that, One end of the blade (41) close to the air inlet (31) has a sweeping end (411), and the sweeping end (411) is located between the wind guiding plane (42) and the air inlet (31).

4. The fan structure according to claim 1, characterized in that, The fan structure further includes a housing (5), the flow channel (3) is located in the housing (5), and the heat exchange component (2) and the air outlet component (1) are both installed on the housing (5).

5. The blower structure according to claim 4, wherein The fan structure further includes: A motor bracket (6), the motor bracket (6) is connected to the housing (5); A driving motor (7), the driving motor (7) is arranged on the motor bracket (6), and the fan blade component (4) is arranged on the driving shaft of the driving motor (7).

6. The fan structure according to claim 5, characterized in that, There are a plurality of the driving motors (7), and the plurality of driving motors (7) are arranged at intervals on the motor bracket (6); there are a plurality of the fan blade components (4), and the plurality of fan blade components (4) are arranged in one-to-one correspondence with the plurality of driving motors (7).

7. The blower structure according to claim 4, characterized in that, There are a plurality of the air outlet components (1), and the plurality of air outlet components (1) are arranged in one-to-one correspondence with the plurality of fan blade components (4); exhaust ports (11) for communicating with the air outlet (32) are arranged on the plurality of air outlet components (1).

8. The blower structure according to claim 7, characterized in that, A plurality of air outlet components (1) are respectively provided with a plurality of air inlet grilles (12), the plurality of air inlet grilles (12) are arranged at intervals, and the air outlet (11) is arranged between two adjacent air inlet grilles (12).

9. The fan structure according to claim 4, characterized in that, The fan structure further includes a wind guiding component (8), a wind guiding channel (81) is arranged in the wind guiding component (8), one end of the wind guiding channel (81) is communicated with the air outlet (32), and the other end of the wind guiding channel (81) is communicated with the circulation channel (3); the wind guiding channel (81) includes a first wind guiding channel (811) at one end close to the air outlet (32), and along the direction of the air inlet (31) approaching the air outlet (32), the cross-sectional area of the first wind guiding channel (811) gradually increases; the wind guiding channel (81) includes a second wind guiding channel (812) at one end far from the air outlet (32), and along the direction of the air inlet (31) approaching the air outlet (32), the cross-sectional area of the second wind guiding channel (812) gradually decreases.

10. An air conditioner, comprising a fan structure, characterized in that, The fan structure is the fan structure according to any one of claims 1 to 9.

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