Air conditioner outdoor unit fan blade and air conditioner

Abstract

The invention discloses an air conditioner outdoor unit fan blade and an air conditioner, and relates to the technical field of air conditioners. The air conditioner outdoor unit fan blade comprises a wheel shaft and blades. The blades are in a strip shape and extend in a convolution shape, the two ends of each blade are connected to the circumferential face of the wheel shaft, each blade is oppositely provided with a front edge and a tail edge, the front edge is provided with a widening part in the direction away from the tail edge, and the widening part is arranged at the end, close to the wheel shaft, of the front edge and connected with the wheel shaft. Compared with the prior art, the air conditioner outdoor unit fan blade provided by the invention has the advantages that the blades which extend in the convoluted manner and of which the two ends are connected to the circumferential surface of the wheel shaft and the widening part arranged on the front edge are adopted, so that the acting area of the air conditioner outdoor unit fan blade on air during operation can be increased, the air outlet amount is increased, and the heat dissipation effect is enhanced; in addition, the structural strength is improved, deformation or damage is avoided, and the service life is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and particularly to a fan blade for an outdoor unit of an air conditioner and an air conditioner. Background Art

[0002] At present, with the increasing improvement of living standards, air conditioners have become an indispensable household appliance in thousands of households. An air conditioner includes an indoor unit and an outdoor unit. Among them, the indoor unit is installed indoors, and the outdoor unit is installed outdoors. The indoor unit and the outdoor unit work together to achieve the function of regulating the indoor temperature. The outdoor unit generally dissipates heat through the fan blade of the outdoor unit of the air conditioner. However, the current fan blade of the outdoor unit of the air conditioner has a small area of doing work on the air during operation, resulting in a small air volume, poor heat dissipation effect, and poor overall structural strength. It is easy to deform or break, and has a short service life. Summary of the Invention

[0003] The problem solved by the present invention is how to increase the area of the fan blade of the outdoor unit of the air conditioner doing work on the air during operation, improve the air volume, enhance the heat dissipation effect, and improve the structural strength, avoid deformation or breakage, and extend the service life.

[0004] To solve the above problems, the technical solution of the present invention is realized as follows:

[0005] In a first aspect, the present invention provides a fan blade for an outdoor unit of an air conditioner, including a wheel shaft and blades. The blades are strip-shaped and extend in a swirling shape. Both ends of the blades are connected to the circumferential surface of the wheel shaft. The blades are provided with a leading edge and a trailing edge opposite to each other. A widening portion is arranged on the leading edge in the direction away from the trailing edge. The widening portion is arranged at one end of the leading edge close to the wheel shaft and is connected to the wheel shaft. Compared with the prior art, the fan blade for an outdoor unit of an air conditioner provided by the present invention can increase the area of the fan blade of the outdoor unit of the air conditioner doing work on the air during operation, improve the air volume, enhance the heat dissipation effect, and improve the structural strength, avoid deformation or breakage, and extend the service life because of the blades extending in a swirling shape and both ends being connected to the circumferential surface of the wheel shaft and the widening portion arranged on the leading edge.

[0006] Furthermore, the widening portion includes a first widening portion and a second widening portion. The first widening portion is arranged at one end of the blade, and the second widening portion is arranged at the other end of the blade. Both the first widening portion and the second widening portion are connected to the wheel shaft. The first widening portion and the second widening portion work together. On the one hand, they can increase the working area of the fan blade of the outdoor unit of the air conditioner and improve the air volume. On the other hand, they can fix the relative positions of the blade and the wheel shaft, avoid deformation or breakage of the blade, and extend the service life of the fan blade of the outdoor unit of the air conditioner.

[0007] Further, the blade includes a first blade segment and a second blade segment that are integrally formed. The first blade segment and the second blade segment are arranged in sequence along the air outlet direction and are both connected to the wheel axle. The first widening portion is provided on the first blade segment, and the second widening portion is provided on the second blade segment. The first widening portion is used to increase the working area of the first blade segment, improve the air intake volume, and enhance the connection strength between the first blade segment and the wheel axle; the second widening portion is used to increase the working area of the second blade segment, improve the air outlet volume, and enhance the connection strength between the second blade segment and the wheel axle.

[0008] Further, the leading edge includes a first leading edge and a second leading edge, and the trailing edge includes a first trailing edge and a second trailing edge. The first leading edge and the first trailing edge are oppositely arranged on both sides of the first blade segment, and the second leading edge and the second trailing edge are oppositely arranged on both sides of the second blade segment. The first widening portion is provided on the first leading edge, and the second widening portion is provided on the second leading edge. The first widening portion is used to increase the effective working area of the first leading edge, thereby increasing the working area of the first blade segment and improving the air intake volume; the second widening portion is used to increase the effective working area of the second leading edge, thereby increasing the working area of the second blade segment and improving the air outlet volume.

[0009] Further, the widening portion is strip-shaped, and the extending direction of the widening portion is the same as the extending direction of the leading edge. The widening portion can increase the effective working area of the leading edge, thereby increasing the working area of the fan blade of the outdoor unit of the air conditioner, improving the air outlet volume, and enhancing the heat dissipation effect on the condenser.

[0010] Further, the thickness of the widening portion is equal to the thickness of the blade, and the thickness range of the widening portion is from 0.5 mm to 2 mm. A reasonable thickness of the widening portion can minimize the weight while ensuring the structural strength and avoid affecting the normal operation of the fan blade of the outdoor unit of the air conditioner.

[0011] Further, the length range of the widening portion is from 110 mm to 130 mm; and / or, the width range of the widening portion is from 12 mm to 18 mm. A reasonable length and width of the widening portion can maximize the working area of the fan blade of the outdoor unit of the air conditioner without affecting its normal operation, thereby improving the air outlet volume and enhancing the air outlet effect.

[0012] Further, the two ends of the blade are spaced apart, and the blade and the wheel axle jointly enclose an air guiding cavity. The air guiding cavity is used for air to pass through. On the one hand, it can increase the air outlet volume of the entire fan blade of the outdoor unit of the air conditioner and improve the efficiency of the fan blade. On the other hand, it can play a role in noise reduction and greatly reduce the wind noise.

[0013] Further, the number of blades is multiple, and the multiple blades are arranged in an annular array on the circumferential surface of the wheel axle with the axis of the wheel axle as the center. The wheel axle can drive multiple blades to rotate simultaneously, so that the air flows to form an air outlet airflow, and the multiple blades work together to increase the air outlet volume.

[0014] In a second aspect, the present invention provides an air conditioner, including a driving motor and the above-mentioned outdoor unit fan blade of the air conditioner. The outdoor unit fan blade of the air conditioner includes a wheel axle and blades. The driving motor is connected to the wheel axle. The blades are strip-shaped and are arranged to extend in a swirling shape. Both ends of the blades are connected to the circumferential surface of the wheel axle. The blades are provided with a leading edge and a trailing edge oppositely. A widened portion is arranged in the direction away from the trailing edge on the leading edge. The widened portion is arranged at one end of the leading edge close to the wheel axle and is connected to the wheel axle. The air conditioner can increase the working area of the outdoor unit fan blade on the air during operation, improve the air volume, enhance the heat dissipation effect, and improve the structural strength, avoid deformation or breakage, and extend the service life. Description of the Drawings

[0015] Figure 1 is a schematic structural view of the outdoor unit fan blade of the air conditioner according to the first embodiment of the present invention from one perspective;

[0016] Figure 2 is a schematic structural view of the outdoor unit fan blade of the air conditioner according to the first embodiment of the present invention from another perspective;

[0017] Figure 3 is a schematic structural view of the connection between the wheel axle and the blades of the outdoor unit fan blade of the air conditioner according to the first embodiment of the present invention;

[0018] Figure 4 is a mathematical model diagram of the widened portion of the outdoor unit fan blade of the air conditioner according to the first embodiment of the present invention.

[0019] Description of the Reference Numerals:

[0020] 100 - outdoor unit fan blade; 110 - wheel axle; 120 - blades; 121 - leading edge; 1211 - first leading edge; 1212 - second leading edge; 122 - trailing edge; 1221 - first trailing edge; 1222 - second trailing edge; 123 - widened portion; 1231 - first widened portion; 1232 - second widened portion; 124 - first blade segment; 125 - second blade segment; 130 - air guiding cavity. Detailed Embodiments

[0021] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be given with reference to the drawings.

[0022] First Embodiment

[0023] Please refer to Figures 1 to 4 , the embodiment of the present invention provides an outdoor unit fan blade 100 of an air conditioner for driving air flow. It can increase the working area of the outdoor unit fan blade 100 on the air during operation, improve the air volume, enhance the heat dissipation effect, and improve the structural strength, avoid deformation or breakage, and extend the service life.

[0024] It should be noted that the air conditioner outdoor unit fan blade 100 is applied to the air conditioner outdoor unit (not shown), the air conditioner outdoor unit is installed outdoors, and is connected to the air conditioner indoor unit (not shown), and the air conditioner outdoor unit and the air conditioner indoor unit work together to realize the function of regulating the indoor temperature. The air conditioner outdoor unit includes a condenser (not shown), a drive motor (not shown) and a shell (not shown), wherein the condenser, the drive motor and the air conditioner outdoor unit fan blade 100 are all arranged in the shell, and the shell is used to shield and protect the condenser, the drive motor and the air conditioner outdoor unit fan blade 100. The drive motor is connected to the air conditioner outdoor unit fan blade 100 to drive the air conditioner outdoor unit fan blade 100 to rotate, and the position of the air conditioner outdoor unit fan blade 100 corresponds to the position of the condenser, and the condenser is used to exchange heat with the refrigerant. The air conditioner outdoor unit fan blade 100 can form a negative pressure during the rotation process to drive the air flow to form an outlet air flow, and the outlet air flow is used to air-cool the condenser to take away the heat of the condenser and ensure the normal operation of the condenser.

[0025] The air conditioner outdoor unit fan blade 100 includes a wheel shaft 110 and a blade 120. The wheel shaft 110 is cylindrical, and the blade 120 is fixedly connected to the circumference of the wheel shaft 110. The wheel shaft 110 is used to drive the blade 120 to rotate. The blade 120 can generate negative pressure during the rotation process to drive air flow. Specifically, the wheel shaft 110 is used to be connected to a driving motor, and the driving motor can drive the blade 120 to rotate through the wheel shaft 110.

[0026] It is worth noting that the blade 120 is in a strip shape. If the blade 120 is straightened, the entire blade 120 is in a rectangular strip shape. In the present embodiment, the blade 120 is extended in a spiral shape, and both ends of the blade 120 are connected to the circumference of the axle 110. Specifically, the shape of the blade 120 is described in detail in a dynamic manner: one end of the blade 120 is connected to the circumference of the axle 110 and extends in a direction away from the axle 110. When the blade 120 extends to a certain length, the blade 120 twists back (the twisting angle is about degrees) and extends in a direction close to the axle 110 until the other end of the blade 120 is connected to the circumference of the axle 110.

[0027] Furthermore, there are multiple blades 120, and the multiple blades 120 are arranged on the circumference of the axle 110 in a circular array with the axis of the axle 110 as the center of the circle. The multiple blades 120 work together to increase the air volume. In this embodiment, there are three blades 120, and the three blades 120 are arranged on the circumference of the axle 110 in a circular array. The axle 110 can drive the three blades 120 to rotate at the same time, so that the air flows to form an air flow. However, it is not limited to this. In other embodiments, the number of blades 120 can be four or five, and the number of blades 120 is not specifically limited.

[0028] Specifically, the two ends of the blade 120 are spaced apart and are both connected to the circumferential surface of the wheel shaft 110. The blade 120 and the wheel shaft 110 together enclose an air guiding cavity 130, and the air guiding cavity 130 is used for air to pass through. During the process of the driving motor driving the air conditioner outdoor unit fan blade 100 to rotate, the blade 120 stirs the air to form a negative pressure. During this process, the first part of the air passes through the gap between two adjacent blades 120, and the second part of the air passes through the air guiding cavity 130. Both parts of the air flow in the air outlet direction under the pressure of the blade 120. Compared with the prior art solution where the air conditioner outdoor unit fan can only drive the air to pass through the gap between two adjacent fan blades, in the present invention, the second part of the air passing through the air guiding cavity 130 can, on the one hand, increase the air output of the entire air conditioner outdoor unit fan blade 100, improve the fan blade efficiency, that is, improve the ability of the air conditioner outdoor unit fan blade 100 to convert mechanical energy into wind energy when rotating, and on the other hand, can play a noise reduction role after converging with the first part of the air, greatly reducing the wind noise.

[0029] It should be noted that the blade 120 is oppositely provided with a leading edge 121 and a trailing edge 122. If the blade 120 is straightened, the leading edge 121 is one long side of the rectangular strip formed by the blade 120, and the trailing edge 122 is the other long side of the rectangular strip formed by the blade 120. During the operation of the air conditioner outdoor unit fan blade 100, the leading edge 121 cuts the air first, and the trailing edge 122 cuts the air later. Among them, the leading edge 121 is used to introduce the air into the air conditioner outdoor unit fan blade 100, and the trailing edge 122 is used to lead the formed air outlet airflow outwards. The inventor's research found that the leading edge 121 does work on the air while cutting the air, so that the air forms an air outlet airflow flowing along the axial direction of the wheel shaft 110. During this process, the effective work area of the leading edge 121 directly affects the size of the air output. If the effective work area of the leading edge 121 is increased, the work area of the air conditioner outdoor unit fan blade 100 on the air during operation can be increased, thereby increasing the air output.

[0030] Furthermore, the leading edge 121 is provided with a widened portion 123 in the direction away from the trailing edge 122. The widened portion 123 is provided at one end of the leading edge 121 close to the wheel shaft 110 and is connected to the wheel shaft 110. On the one hand, the widened portion 123 is provided on the leading edge 121, which can increase the effective work area of the leading edge 121, thereby increasing the work area of the air conditioner outdoor unit fan blade 100 on the air during operation, improving the air output, enhancing the air outlet effect, and enhancing the heat dissipation effect on the condenser; on the other hand, the widened portion 123 is connected to the wheel shaft 110, which can improve the connection strength between the blade 120 and the wheel shaft 110, thereby improving the structural strength of the entire air conditioner outdoor unit fan blade 100, avoiding the situation of deformation or damage, and extending the service life of the air conditioner outdoor unit fan blade 100.

[0031] The widening part 123 includes a first widening part 1231 and a second widening part 1232. The first widening part 1231 is arranged at one end of the blade 120, and the second widening part 1232 is arranged at the other end of the blade 120. Both the first widening part 1231 and the second widening part 1232 are connected to the wheel shaft 110. The first widening part 1231 is used to improve the connection strength between one end of the blade 120 and the wheel shaft 110, and the second widening part 1232 is used to improve the connection strength between the other end of the blade 120 and the wheel shaft 110. The first widening part 1231 and the second widening part 1232 work together. On the one hand, it can increase the working area of the fan blade 100 of the outdoor unit of the air conditioner and improve the air output. On the other hand, it can fix the relative positions of the blade 120 and the wheel shaft 110, avoid the situation that the blade 120 is deformed or damaged, and extend the service life of the fan blade 100 of the outdoor unit of the air conditioner.

[0032] The blade 120 includes a first blade segment 124 and a second blade segment 125. Among them, the first blade segment 124 is a section before the blade 120 is twisted, and the second blade segment 125 is a section after the blade 120 is twisted. The first blade segment 124 and the second blade segment 125 are arranged in sequence along the air outlet direction and are both connected to the wheel shaft 110. That is, during the operation of the fan blade 100 of the outdoor unit of the air conditioner, the air outlet airflow flows through the first blade segment 124 and the second blade segment 125 in sequence. In this embodiment, the first blade segment 124 and the second blade segment 125 are integrally formed to improve the connection strength, realize the integration of the blade 120, and thus improve the stability of the blade 120 during the air outlet process.

[0033] Specifically, the first widening part 1231 is arranged on the first blade segment 124. The first widening part 1231 is used to increase the working area of the first blade segment 124, improve the air intake volume, and improve the connection strength between the first blade segment 124 and the wheel shaft 110. The second widening part 1232 is arranged on the second blade segment 125. The second widening part 1232 is used to increase the working area of the second blade segment 125, improve the air output, and improve the connection strength between the second blade segment 125 and the wheel shaft 110.

[0034] The leading edge 121 includes a first leading edge 1211 and a second leading edge 1212, and the trailing edge 122 includes a first trailing edge 1221 and a second trailing edge 1222. Among them, the first leading edge 1211 and the first trailing edge 1221 are oppositely arranged on both sides of the first blade segment 124, and the second leading edge 1212 and the second trailing edge 1222 are oppositely arranged on both sides of the second blade segment 125. The first leading edge 1211 and the second leading edge 1212 are both on the same side of the blade 120, and the first trailing edge 1221 and the second trailing edge 1222 are both on the other side of the blade 120. The first widening portion 1231 is arranged on the first leading edge 1211 and is close to the wheel axle 110 to increase the effective working area of the first leading edge 1211, thereby increasing the working area of the first blade segment 124 and improving the air intake volume; the second widening portion 1232 is arranged on the second leading edge 1212 and is close to the wheel axle 110 to increase the effective working area of the second leading edge 1212, thereby increasing the working area of the second blade segment 125 and improving the air output volume.

[0035] In this embodiment, the widening portion 123 is strip-shaped, and the extending direction of the widening portion 123 is the same as the extending direction of the leading edge 121. Since the blade 120 is arranged to extend in a swirling shape, the extending direction of the leading edge 121 is a curved direction, and the extending direction of the widening portion 123 is also a curved direction. In this way, during the operation of the outdoor unit fan blade 100 of the air conditioner, the outgoing air flow smoothly passes through the widening portion 123 and the leading edge 121 in sequence. During this process, the widening portion 123 can increase the effective working area of the leading edge 121, thereby increasing the working area of the outdoor unit fan blade 100 of the air conditioner, improving the air output volume, and enhancing the heat dissipation effect on the condenser.

[0036] Furthermore, the thickness of the widening portion 123 is equal to the thickness of the blade 120, and the edges of the widening portion 123 are chamfered to ensure the smoothness of the surface of the outdoor unit fan blade 100 and improve the air output effect; and the thickness range of the widening portion 123 is from 1 millimeter to 3 millimeters. A reasonable thickness of the widening portion 123 can minimize the weight while ensuring the structural strength and avoid affecting the normal operation of the outdoor unit fan blade 100.

[0037] In this embodiment, the thickness of the widening portion 123 is 2 millimeters, but it is not limited thereto. In other embodiments, the thickness of the widening portion 123 can be 1 millimeter or 3 millimeters, and the specific size of the thickness of the widening portion 123 is not specifically limited.

[0038] Further, the length range of the widening portion 123 is 110 mm to 130 mm, and the width range of the widening portion 123 is 12 mm to 18 mm. The reasonable length and width of the widening portion 123 can maximize the work area of the air conditioner outdoor unit fan 100 without affecting the normal operation of the air conditioner outdoor unit fan 100, thereby increasing the air volume and enhancing the air outlet effect. For the convenience of understanding, the length of the widening portion 123 is represented as A, and the width of the widening portion 123 is represented as B.

[0039] In this embodiment, the length of the widening portion 123 is 120 mm, and the width of the widening portion 123 is 15 mm. However, it is not limited thereto. In other embodiments, the length of the widening portion 123 can be 110 mm or 130 mm; the width of the widening portion 123 can be 12 mm or 18 mm; the specific sizes of the length and width of the widening portion 123 are not specifically limited.

[0040] In this embodiment, the length range of the widening portion 123 is limited to 110 mm to 130 mm, and the width range of the widening portion 123 is limited to 12 mm to 18 mm. However, it is not limited thereto. In other embodiments, only the length range of the widening portion 123 can be limited to 110 mm to 130 mm, or only the width range of the widening portion 123 can be limited to 12 mm to 18 mm.

[0041] In the air conditioner outdoor unit fan 100 according to the embodiment of the present invention, the blade 120 is strip-shaped and extends in a spiral shape. Both ends of the blade 120 are connected to the circumferential surface of the wheel shaft 110. The blade 120 is provided with a leading edge 121 and a trailing edge 122 opposite to each other. A widening portion 123 is provided on the leading edge 121 in a direction away from the trailing edge 122. The widening portion 123 is provided at one end of the leading edge 121 close to the wheel shaft 110 and is connected to the wheel shaft 110. Compared with the prior art, the air conditioner outdoor unit fan 100 provided by the present invention can increase the work area of the air conditioner outdoor unit fan 100 on the air during operation, improve the air volume, enhance the heat dissipation effect, and improve the structural strength, avoid deformation or damage, and extend the service life because the blade 120 extending in a spiral shape and both ends are connected to the circumferential surface of the wheel shaft 110 and the widening portion 123 provided on the leading edge 121 are adopted.

[0042] Second Embodiment

[0043] The present invention provides an air conditioner (not shown in the figure) for regulating the indoor temperature. The air conditioner includes an air conditioner outdoor unit and an air conditioner indoor unit. The air conditioner outdoor unit includes a housing, a condenser, a drive motor, and an air conditioner outdoor unit fan 100. Among them, the basic structure, principle, and technical effects generated by the air conditioner outdoor unit fan 100 are the same as those in the first embodiment. For a brief description, for the parts not mentioned in this embodiment, reference can be made to the corresponding content in the first embodiment.

[0044] In this embodiment, the outdoor unit of the air conditioner is installed outdoors and connected to the indoor unit of the air conditioner. The outdoor unit and the indoor unit of the air conditioner work together to achieve the function of regulating the indoor temperature. The condenser, the drive motor, and the outdoor unit fan blade 100 are all arranged inside the housing. The drive motor is connected to the outdoor unit fan blade 100, and the position of the outdoor unit fan blade 100 corresponds to the position of the condenser. The outdoor unit fan blade 100 can form a negative pressure during rotation to drive the air flow to form an outlet air flow, and this outlet air flow can cool the condenser by air cooling to take away the heat of the condenser, ensuring the normal operation of the condenser, thereby realizing the function of heating or cooling the indoor by the indoor unit of the air conditioner.

[0045] The beneficial effects of the air conditioner described in the embodiments of the present invention are the same as those of the first embodiment, and will not be elaborated here.

[0046] 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. An outdoor fan blade of an air conditioner, characterized in that, It includes a wheel axle (110) and blades (120). The blades (120) are strip-shaped and extend in a swirling shape. Both ends of the blades (120) are connected to the circumferential surface of the wheel axle (110). The blades (120) are oppositely provided with a leading edge (121) and a trailing edge (122). A widening portion (123) is provided on the leading edge (121) in a direction away from the trailing edge (122). The widening portion (123) is provided at one end of the leading edge (121) close to the wheel axle (110) and is connected to the wheel axle (110).

2. The air conditioner outdoor unit fan blade according to claim 1, wherein, The widening portion (123) includes a first widening portion (1231) and a second widening portion (1232). The first widening portion (1231) is provided at one end of the blade (120), and the second widening portion (1232) is provided at the other end of the blade (120). Both the first widening portion (1231) and the second widening portion (1232) are connected to the wheel axle (110).

3. The air conditioner outdoor unit fan blade according to claim 2, characterized in that, The blade (120) includes an integrally formed first blade segment (124) and a second blade segment (125). The first blade segment (124) and the second blade segment (125) are arranged in sequence along the air outlet direction and are both connected to the wheel axle (110). The first widening portion (1231) is provided on the first blade segment (124), and the second widening portion (1232) is provided on the second blade segment (125).

4. The air conditioner outdoor unit fan blade according to claim 3, wherein, The leading edge (121) includes a first leading edge (1211) and a second leading edge (1212), and the trailing edge (122) includes a first trailing edge (1221) and a second trailing edge (1222). The first leading edge (1211) and the first trailing edge (1221) are oppositely arranged on both sides of the first blade segment (124), and the second leading edge (1212) and the second trailing edge (1222) are oppositely arranged on both sides of the second blade segment (125). The first widening portion (1231) is provided on the first leading edge (1211), and the second widening portion (1232) is provided on the second leading edge (1212).

5. The air conditioner outdoor unit fan blade according to claim 1, wherein The widening portion (123) is strip-shaped, and the extending direction of the widening portion (123) is the same as the extending direction of the leading edge (121).

6. The air conditioner outdoor unit fan blade according to claim 5, characterized in that, The thickness of the widening portion (123) is equal to the thickness of the blade (120), and the thickness range of the widening portion (123) is from 0.5 mm to 2 mm.

7. The air conditioner outdoor unit fan blade according to claim 5, characterized in that, The length range of the widening portion (123) is from 110 mm to 130 mm; and / or, the width range of the widening portion (123) is from 12 mm to 18 mm.

8. The air conditioner outdoor unit fan blade according to claim 1, characterized in that, Both ends of the blade (120) are arranged at intervals, and the blade (120) and the wheel axle (110) jointly enclose an air guiding cavity (130).

9. The air conditioner outdoor unit fan blade according to claim 1, wherein, The number of the blades (120) is multiple, and the multiple blades (120) are arranged in a circular array on the circumferential surface of the wheel axle (110) with the axis of the wheel axle (110) as the center of the circle.

10. An air conditioner, characterized in that, It includes a drive motor and an outdoor unit fan blade of an air conditioner as described in any one of claims 1 to 9, and the drive motor is connected to the wheel shaft (110).

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