A fan and air conditioner

Abstract

The application provides a fan and an air conditioner, and relates to the technical field of air conditioners. The fan comprises a guide ring, a transmission part and a plurality of fan blades, the plurality of fan blades are installed on the transmission part, the guide ring is annularly arranged around the fan blades, the guide ring comprises an air inlet section and an air outlet section, the air inlet section is connected with the air outlet section, the fan blade comprises a body and an air outlet part, the body is connected with the transmission part, the air outlet part is connected with one end of the body away from the transmission part and is arranged close to the air outlet section, and the shape of the air outlet part is matched with the shape of the air outlet section. During the working process of the fan, air flows from the direction of the air inlet section to the direction of the air outlet section, the air outlet part is matched with the shape of the air outlet section while the guide ring and the fan blade are spaced, the distance between the air outlet part and the air outlet section can be kept equal, the increase of the distance between the air outlet part and the air outlet section is reduced, the fluid leakage is reduced, and the air supply efficiency of the fan is improved.

Description

Technical Field

[0001] This invention relates to the field of air conditioner technology, and more specifically, to a fan and an air conditioner. Background Technology

[0002] The primary function of a fan is to deliver air. A typical fan consists of blades and a guide ring. The guide ring is located around the blades and is mainly used to guide airflow. To improve the airflow guiding effect, the guide ring is often designed in a funnel shape, which leads to an increasing distance between the guide ring and the blades. Due to centrifugal force, the fluid inside the blades flows outward along the blades during airflow. As the distance between the guide ring and the blades gradually increases, leakage can easily occur from the pressure side of the blades to the suction side, causing fluid loss and reducing the fan's efficiency. Summary of the Invention

[0003] The problem addressed by this invention is how to improve the efficiency of wind turbines.

[0004] To address the above problems, the present invention provides a fan and an air conditioner.

[0005] In a first aspect, embodiments of the present invention provide a fan, the fan including an air guide ring, a transmission part and a plurality of fan blades, the plurality of fan blades being mounted on the transmission part, the air guide ring being arranged around the fan blades, the air guide ring including an air inlet section and an air outlet section, the air inlet section being connected to the air outlet section, the fan blade including a body and an air outlet section, the body being connected to the transmission part, the air outlet section being connected to the end of the body away from the transmission part and disposed close to the air outlet section, the shape of the air outlet section being adapted to the shape of the air outlet section.

[0006] In this embodiment of the invention, during the operation of the fan, the air flows from the direction of the air inlet section to the direction of the air outlet section. With the air guide ring and the fan blades spaced apart, the shape of the air outlet section is adapted to the air outlet section, which can keep the distance between the air outlet section and the air outlet section equal, reduce the situation where the distance between the air outlet section and the air outlet section increases, reduce the situation where fluid leakage occurs, and thus improve the air delivery efficiency of the fan.

[0007] In an optional embodiment of the present invention, the air outlet has an air guide surface, the air outlet section has an air outlet surface, and the shape of the air guide surface and the shape of the air outlet surface are adapted to each other.

[0008] In an optional embodiment of the present invention, the air outlet surface and the air guide surface are arc-shaped, and the distance between the air outlet surface and the air guide surface in the radial direction of the air outlet surface is a first distance, and multiple first distances are equal.

[0009] In an optional embodiment of the present invention, the air guide ring further includes a connecting section, the air inlet section is connected to the air outlet section through the connecting section, and the shape of the connecting section is adapted to the shape of the body.

[0010] In an optional embodiment of the present invention, the connection segment and the body have a second distance, the air outlet has a guide surface, the air outlet segment has an air outlet surface, the air outlet surface and the guide surface are arc-shaped, and the distance between the air outlet surface and the guide surface in the radial direction of the air outlet surface is a first distance, the first distance and the second distance are equal.

[0011] In an optional embodiment of the present invention, the air guide ring further includes a connecting section, the air inlet section is connected to the air outlet section through the connecting section, the outer diameter of the body corresponding to the connecting section is a first diameter, the maximum outer diameter of the air outlet is a second diameter, the second diameter is greater than a first calculated value, wherein the first calculated value is calculated by multiplying the first diameter by a first set value, and the first set value is greater than 1 and less than 1.2.

[0012] In an optional embodiment of the present invention, the second diameter is smaller than the second calculated value, wherein the second calculated value is calculated by multiplying the first diameter by the second set value, and the second set value is greater than the first set value and less than 2.

[0013] In an optional embodiment of the present invention, in the direction from the air inlet section to the air outlet section, the height of the air outlet section is a first height, and the height between the end of the air outlet section near the air inlet section and the end of the air outlet section away from the main body is a second height. The second height is greater than a third calculated value, wherein the third calculated value is calculated by multiplying the first height by a third set value, and the third set value is greater than 0 and less than 0.5.

[0014] In an optional embodiment of the present invention, the second height is less than the fourth calculated value, wherein the fourth calculated value is calculated by multiplying the first height by the fourth set value, and the fourth set value is greater than the third set value and less than 1.

[0015] Secondly, embodiments of the present invention provide an air conditioner, the air conditioner including any of the fans provided in the first aspect. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of a fan provided for the first embodiment of the present invention.

[0017] Figure 2 A partial cross-sectional view of a fan provided for the first embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures:

[0019] 100-Fan; 110-Guide ring; 112-Inlet section; 114-Outlet section; 116-Outlet surface; 118-Connecting section; 119-Connecting surface; 120-Fan blade; 122-Body; 124-Outlet section; 126-Guide surface; 128-Transition surface; 130-Transmission section. Detailed Implementation

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] First Embodiment

[0022] Please refer to the following: Figure 1 and Figure 2 This embodiment provides a fan 100. The fan 100 provided in this embodiment can keep the distance between the air outlet 124 and the air outlet section 114 equal, reduce the situation where the distance between the air outlet 124 and the air outlet section 114 increases, reduce the situation where fluid leakage occurs, thereby improving the air delivery efficiency of the fan 100.

[0023] The fan 100 provided in this embodiment is mainly used in air conditioners. The fan 100 mainly serves to deliver air. A typical fan 100 includes a fan blade 120 and a guide ring 110. The guide ring 110 is located around the fan blade 120 and is mainly used to guide airflow. In order to improve the airflow guiding effect of the guide ring 110, the guide ring 110 is usually designed in a trumpet shape, which will cause the distance between the guide ring 110 and the fan blade 120 to become farther and farther. Due to centrifugal force, the fluid inside the fan blade 120 flows outward along the fan blade 120 when the air is discharged. As the distance between the guide ring 110 and the fan blade 120 gradually increases, leakage is easily generated from the pressure surface of the fan blade 120 to the suction surface, resulting in fluid loss and a decrease in the efficiency of the fan 100. The fan 100 provided in this embodiment can improve the above problems by reducing the distance between the guide ring 110 and the fan blade 120 during the shape change of the guide ring 110, reducing fluid leakage, and thus improving the air delivery efficiency of the fan 100.

[0024] In this embodiment, the fan 100 includes an air guide ring 110, a transmission part 130, and multiple fan blades 120. The multiple fan blades 120 are mounted on the transmission part 130. The air guide ring 110 is arranged around the fan blades 120. The air guide ring 110 includes an air inlet section 112 and an air outlet section 114. The air inlet section 112 and the air outlet section 114 are connected. The fan blades 120 include a body 122 and an air outlet section 124. The body 122 is connected to the transmission part 130. The air outlet section 124 is connected to the end of the body 122 away from the transmission part 130 and is arranged close to the air outlet section 114. The shape of the air outlet section 124 is adapted to the shape of the air outlet section 114.

[0025] In this embodiment, during the operation of the fan 100, the air flows from the direction of the air inlet section 112 to the direction of the air outlet section 114. With the air guide ring 110 and the fan blade 120 spaced apart, the shape of the air outlet section 124 is adapted to the shape of the air outlet section 114, which can keep the distance between the air outlet section 124 and the air outlet section 114 equal, reduce the possibility of the distance between the air outlet section 124 and the air outlet section 114 increasing, reduce fluid leakage, and thus improve the air delivery efficiency of the fan 100.

[0026] In this embodiment, the air outlet 124 has an air guide surface 126, and the air outlet section 114 has an air outlet surface 116. The shape of the air guide surface 126 and the shape of the air outlet surface 116 are adapted to each other.

[0027] In this embodiment, the air guide surface 126 is arranged facing the air guide ring 110, and the air outlet surface 116 is arranged facing the fan blade 120. The air guide surface 126 and the air outlet surface 116 are arranged opposite to each other, and their shapes are compatible. This can keep the distance between the air guide surface 126 and the air outlet surface 116 constant, reduce the increase in the distance between the air outlet part 124 and the air outlet section 114, reduce fluid leakage, and thus improve the air delivery efficiency of the fan 100.

[0028] The easily understood aspect is that the shapes of the two are compatible, meaning that if the air guide surface 126 is curved, then the air outlet surface 116 is also curved. If the air guide surface 126 is flat, then the air outlet surface 116 is also flat, ensuring that the two are compatible.

[0029] In this embodiment, the air outlet surface 116 and the air guide surface 126 are arc-shaped. In the radial direction of the air outlet surface 116, the distance between the air outlet surface 116 and the air guide surface 126 is a first distance, and multiple first distances are equal.

[0030] In this embodiment, the air outlet surface 116 and the air guide surface 126 are spaced apart in the radial direction of the air outlet surface 116, and this distance is defined as the first distance. Alternatively, the arc-shaped air guide surface 126 and the arc-shaped air outlet surface 116 are concentrically arranged, and the distance between them in the radial direction is equal. This ensures that the distance between the air outlet portion 124 and the air outlet section 114 remains equal, reducing the possibility of increased distance between them and minimizing fluid leakage, thereby improving the air delivery efficiency of the fan 100.

[0031] The air outlet section 114 is arc-shaped and extends away from the fan blade 120. In order to make the shape of the air outlet part 124 match the shape of the air outlet section 114, the air outlet part 124 extends away from the body 122, thereby ensuring that the first distance is equal.

[0032] In this embodiment, the air guide ring 110 also includes a connecting section 118. The air inlet section 112 is connected to the air outlet section 114 through the connecting section 118. The shape of the connecting section 118 is adapted to the shape of the body 122.

[0033] The connecting section 118 is mainly used to connect the air inlet section 112 and the air outlet section 114, serving primarily to connect the air inlet section 112 and the air outlet section 114. Similarly, the shape of the connecting section 118 is adapted to the shape of the body 122, ensuring that the distance between the connecting section 118 and the body 122 remains constant, thereby reducing fluid leakage and improving the air delivery efficiency of the fan 100.

[0034] In this embodiment, the connecting segment 118 has a connecting surface 119, which is disposed facing the body 122. The body 122 has a transition surface 128, which is disposed facing the connecting segment 118. Both the connecting surface 119 and the transition surface 128 are planar, so that the distance between the connecting surface 119 and the transition surface 128 is equal at all points.

[0035] In this embodiment, the distance between the connecting section 118 and the body 122 is a second distance. The air outlet 124 has an air guide surface 126, and the air outlet section 114 has an air outlet surface 116. The air outlet surface 116 and the air guide surface 126 are arc-shaped. In the radial direction of the air outlet surface 116, the distance between the air outlet surface 116 and the air guide surface 126 is a first distance. The first distance is equal to the second distance.

[0036] The distance between the connecting surface 119 and the transition surface 128 is the second distance. The first distance and the second distance are equal. The air entering the connecting section 118 from the air inlet section 112 can smoothly enter the gap between the air outlet section 114 and the air outlet part 124. Since the first distance and the second distance are equal, the width of the airflow channel remains unchanged, thereby reducing the situation of backflow and air leakage, and improving the efficiency of the fan 100.

[0037] In this embodiment, the outer diameter of the body 122 corresponding to the connecting section 118 is the first diameter, and the maximum outer diameter of the air outlet 124 is the second diameter. The second diameter is greater than the first calculated value, wherein the first calculated value is calculated by multiplying the first diameter by the first set value, and the first set value is greater than 1 and less than 1.2.

[0038] In this embodiment, since both the connecting surface 119 and the transition surface 128 are planar, the diameter of the body 122 is the same at all points. The air guide surface 126 of the air outlet 124 is arc-shaped, so the diameter of the air outlet 124 gradually increases in the direction away from the body 122. The maximum outer diameter of the air outlet 124 refers to the maximum value of the outer diameter of the air outlet 124.

[0039] In addition, if the first set value is greater than 1, it means that the second diameter is greater than the first diameter, and the air outlet 124 extends in a direction away from the main body 122.

[0040] In this embodiment, the second diameter is smaller than the second calculated value, wherein the second calculated value is obtained by multiplying the first diameter by the second set value, and the second set value is greater than the first set value and less than 2.

[0041] Since the space for the fan blade 120 is limited, it is installed inside the air guide ring 110. The maximum outer diameter of the air outlet 124 should not be too large, and the second diameter should be smaller than the second calculated value.

[0042] Preferably, the first setting value is 1.01, and the second setting value is 1.25, meaning that the first diameter and the second diameter satisfy the following relationship:

[0043] 1.01×d1<d2<1.25×d1; where d1 is the first diameter and d2 is the second diameter.

[0044] In this embodiment, in the direction from the air inlet section 112 to the air outlet section 114, the height of the air outlet section 114 is the first height, and the height between the end of the air outlet section 114 near the air inlet section 112 and the end of the air outlet section 124 away from the main body 122 is the second height. The second height is greater than a third calculated value, wherein the third calculated value is calculated by multiplying the first height by a third set value, and the third set value is greater than 0 and less than 0.5.

[0045] In this embodiment, the first height is the height of the entire air outlet section 114, and the second height refers to the height from the connection between the connection section 118 and the air outlet section 114 to the maximum outer diameter of the air outlet part 124. Herein, both the first height and the second height refer to the direction from the air inlet section 112 towards the air outlet section 114.

[0046] Herein, the second height is much smaller than the first height. That is to say, there is a relatively large distance between the air outlet part 124 and the end of the air outlet section 114 far from the air inlet section 112, thereby ensuring the air volume output of the entire fan 100.

[0047] In this embodiment, the second height is less than the fourth calculated value, wherein the fourth calculated value is obtained by multiplying the first height by a fourth set value, and the fourth set value is greater than the third set value and less than 1.

[0048] Preferably, the third calculated value is 0.2 and the fourth calculated value is 0.8. That is to say, the following relationship is satisfied between the first height and the second height:

[0049] 0.2×h1<h2<0.8×h1; wherein, h1 is the first height and h2 is the second height.

[0050] In summary, for the fan 100 provided in this embodiment, during the operation of the fan 100, air flows from the direction of the air inlet section 112 towards the direction of the air outlet section 114. While the air guide ring 110 and the air blades 120 are arranged at intervals, the shape of the air outlet part 124 is adapted to the air outlet section 114, which can keep the distance between the air outlet part 124 and the air outlet section 114 equal, reduce the situation where the distance between the air outlet part 124 and the air outlet section 114 increases, and reduce the situation of fluid leakage, thereby improving the air supply efficiency of the fan 100.

[0051] Second Embodiment

[0052] This embodiment provides an air conditioner, and the air conditioner provided in this embodiment can keep the distance between the air outlet part 124 and the air outlet section 114 equal, reduce the situation where the distance between the air outlet part 124 and the air outlet section 114 increases, and reduce the situation of fluid leakage, thereby improving the air supply efficiency of the fan 100.

[0053] For the sake of brief description, for the parts not mentioned in this embodiment, reference may be made to the first embodiment.

[0054] In this embodiment, the air conditioner includes the fan 100 provided in the first embodiment.

[0055] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be subject to the scope defined by the claims.

Claims

1. A fan, characterized in that, The fan (100) includes a guide ring (110), a transmission part (130), and a plurality of fan blades (120). The plurality of fan blades (120) are mounted on the transmission part (130). The guide ring (110) is arranged around the fan blades (120). The guide ring (110) includes an air inlet section (112) and an air outlet section (114). The air inlet section (112) is connected to the air outlet section (114). The fan blade (120) includes a body (122) and an air outlet section (124). The body (122) is connected to the transmission part (130). The air outlet section (124) is connected to the end of the body (122) away from the transmission part (130) and is arranged close to the air outlet section (114). The shape of the air outlet section (124) is adapted to the shape of the air outlet section (114). The air outlet (124) has an air guide surface (126), and the air outlet section (114) has an air outlet surface (116). The shape of the air guide surface (126) and the shape of the air outlet surface (116) are adapted to each other. The air guide ring (110) also includes a connecting section (118). The air inlet section (112) is connected to the air outlet section (114) through the connecting section (118). The outer diameter of the body (122) at the corresponding position of the connecting section (118) is a first diameter. The maximum outer diameter at the air outlet section (124) is a second diameter. The second diameter is greater than a first calculated value. The first calculated value is calculated by multiplying the first diameter by a first set value. The first set value is greater than 1 and less than 1.

2.

2. The fan according to claim 1, characterized in that, The air outlet surface (116) and the air guide surface (126) are arc-shaped. In the radial direction of the air outlet surface (116), the distance between the air outlet surface (116) and the air guide surface (126) is a first distance, and multiple first distances are equal.

3. The fan according to claim 1, characterized in that, The air guide ring (110) also includes a connecting section (118), the air inlet section (112) is connected to the air outlet section (114) through the connecting section (118), and the shape of the connecting section (118) is adapted to the shape of the body (122).

4. The fan according to claim 3, characterized in that, The distance between the connecting section (118) and the body (122) is a second distance. The air outlet (124) has an air guide surface (126). The air outlet section (114) has an air outlet surface (116). The air outlet surface (116) and the air guide surface (126) are arc-shaped. In the radial direction of the air outlet surface (116), the distance between the air outlet surface (116) and the air guide surface (126) is a first distance. The first distance is equal to the second distance.

5. The fan according to claim 1, characterized in that, The second diameter is less than the second calculated value, wherein the second calculated value is obtained by multiplying the first diameter by the second set value, and the second set value is greater than the first set value and less than 2.

6. The fan according to claim 1, characterized in that, In the direction from the air inlet section (112) to the air outlet section (114), the height of the air outlet section (114) is a first height, and the height between the end of the air outlet section (114) near the air inlet section (112) and the end of the air outlet section (124) away from the main body (122) is a second height. The second height is greater than a third calculated value, wherein the third calculated value is calculated by multiplying the first height by a third set value, and the third set value is greater than 0 and less than 0.

5.

7. The fan according to claim 6, characterized in that, The second height is less than the fourth calculated value, wherein the fourth calculated value is obtained by multiplying the first height by the fourth set value, and the fourth set value is greater than the third set value and less than 1.

8. An air conditioner, characterized in that, The air conditioner includes a fan (100) as described in any one of claims 1-7.

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