FAN ASSEMBLY

CROSS-REFERENCE TO RELATED APPLICATION

[0001]This application claims priority to China Application Serial Number 202422329868.8, filed Sep. 24, 2024, which is herein incorporated by reference in its entirety.

BACKGROUND

Field of Invention

[0002]The present invention relates to a fan assembly.

Description of Related Art

[0003]In recent years, fans have been gradually moving towards the trend of ultra-thin design. However, in response to the demand for ultra-thin design, when the thickness of the fan is gradually reduced, the area of the fan blades must also be reduced accordingly, which in turn leads to a decrease in the heat dissipation efficiency of the fan.

[0004]Therefore, how to propose a fan assembly that can solve the aforementioned problems is one of the problems that the industry is currently eager to invest in research and development resources to solve.

SUMMARY

[0005]In view of this, one purpose of the present disclosure is to provide a fan assembly that can solve the aforementioned problems.

[0006]In order to achieve the above objective, according to an embodiment of the present disclosure, a fan assembly includes a motor, a frame body, and a fan blade. The frame body has an accommodating space, a first opening, and a second opening. The motor is disposed in the accommodating space. The fan blade is located in the accommodating space. The fan blade is pivotally connected to the motor and rotates relative to a shaft extending along a direction. The fan blade includes a wheel hub, a plurality of first blades, and a plurality of second blades. The wheel hub has the shaft at a center of the wheel hub. The shaft is pivotally connected to the motor. The first blades surround the wheel hub and extend radially outward from the wheel hub as a center and correspond to the first opening. An end of the first blade is connected to the wheel hub. The first blades have a first thickness in the direction. The second blades surround the first blades. An end of the second blades is connected to the other end of the corresponding first blades. The second blades have a second thickness in the direction. The first thickness of the first blades is greater than the second thickness of the second blades. The wheel hub and the first blade are exposed in the first opening. A top surface of the first blades and a top surface of the frame body are coplanar.

[0007]In one or more embodiments of the present disclosure, the fan blade further includes a disk body. The first blades protrude from the disk body along the direction. The second blades protrude from the disk body in the direction.

[0008]In one or more embodiments of the present disclosure, the first blades are located in an inner ring of the disk body. The second blades are located in an outer ring of the disk body.

[0009]In one or more embodiments of the present disclosure, the disk body, the first blades, and the second blades are formed integrally.

[0010]In one or more embodiments of the present disclosure, the disk body has a top surface and a bottom surface. The first blades have a top surface and a bottom surface. The second blades have a top surface and a bottom surface.

[0011]In one or more embodiments of the present disclosure, the first thickness of the first blades is a distance from the bottom surface of the first blades to the top surface of the first blades. The second thickness of the second blades is a distance from the bottom surface of the second blades to the top surface of the second blades.

[0012]In one or more embodiments of the present disclosure, the top surface of the first blades and the top surface of the second blades are higher than the top surface of the disk body. The bottom surface of the first blades and the bottom surface of the second blades are lower than the bottom surface of the disk body.

[0013]In one or more embodiments of the present disclosure, the bottom surface of the first blade, the bottom surface of the second blade, and the bottom surface of the disk body are coplanar.

[0014]In one or more embodiments of the present disclosure, the frame body includes a bottom plate, a top plate, and a side plate. The accommodating space is jointly defined by the bottom plate, the top plate, and the side plate. The top plate has a top surface and the first opening is located on the top plate.

[0015]In one or more embodiments of the present disclosure, the first thickness of the first blades is less than or equal to 2 millimeters.

[0016]In order to achieve the above objective, according to an embodiment of the present disclosure, a fan assembly includes a motor, a frame body, and a fan blade. The frame body has an accommodating space and a first opening. The motor is disposed in the accommodating space. The fan blade is located in the accommodating space. The fan blade is pivotally connected to the motor and rotates relative to a shaft extending along a direction. The fan blade includes a wheel hub, a plurality of first blades, and a plurality of second blades. The wheel hub has the shaft at a center of the wheel hub. The shaft is pivotally connected to the motor. The first blades surround the wheel hub and extend radially outward from the wheel hub as a center. An end of the first blade is connected to the wheel hub. The first blades have a first thickness in the direction. The second blades surround the first blades. An end of the second blades is connected to the other end of the corresponding first blades. The second blades have a second thickness in the direction. The first thickness of the first blades is greater than the second thickness of the second blades. The wheel hub and the first blade pass through the first opening. A top surface of the first blades and a top surface of the frame body are coplanar.

[0017]In one or more embodiments of the present disclosure, the fan blade further includes a disk body. The first blades protrude from the disk body along the direction. The second blades protrude from the disk body in the direction.

[0018]In one or more embodiments of the present disclosure, the first blades are located in an inner ring of the disk body. The second blades are located in an outer ring of the disk body.

[0019]In one or more embodiments of the present disclosure, the disk body, the first blades, and the second blades are formed integrally.

[0020]In one or more embodiments of the present disclosure, the disk body has a top surface and a bottom surface. The first blades have a top surface and a bottom surface. The second blades have a top surface and a bottom surface.

[0021]In one or more embodiments of the present disclosure, the first thickness of the first blades is a distance from the bottom surface of the first blades to the top surface of the first blades. The second thickness of the second blades is a distance from the bottom surface of the second blades to the top surface of the second blades.

[0022]In one or more embodiments of the present disclosure, the top surface of the first blades and the top surface of the second blades are higher than the top surface of the disk body. The bottom surface of the first blades and the bottom surface of the second blades are lower than the bottom surface of the disk body.

[0023]In one or more embodiments of the present disclosure, the bottom surface of the first blade, the bottom surface of the second blade, and the bottom surface of the disk body are coplanar.

[0024]In one or more embodiments of the present disclosure, the frame body includes a bottom plate, a top plate, and a side plate. The accommodating space is jointly defined by the bottom plate, the top plate, and the side plate. The top plate has a top surface and the first opening is located on the top plate.

[0025]In one or more embodiments of the present disclosure, the first thickness of the first blades is less than or equal to 2 millimeters.

[0026]In summary, in the fan assembly of the present disclosure, since the fan blade includes the first blades and the second blades, and the first thickness of the first blades is larger than the second thickness of the second blades, the overall area of work of the fan blade can be increased.

[0027]It is to be understood that both the foregoing general description and the following detailed description are by examples, and are intended to provide further explanation of the invention as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS

[0028]The invention can be more fully understood by reading the following detailed description of the embodiment, with reference made to the accompanying drawings as follows:

[0029]FIG. 1 is a perspective view of a fan assembly in accordance with an embodiment of the present disclosure;

[0030]FIG. 2 is a perspective view of a fan blade in accordance with an embodiment of the present disclosure; and

[0031]FIG. 3 is a cross-sectional view of the fan assembly based on a section A-A′ of FIG. 1 in accordance with an embodiment of the present disclosure.

DETAILED DESCRIPTION

[0032]Hereinafter, a plurality of embodiments of the present disclosure will be disclosed in diagrams. For the sake of clarity, many details in practice will be described in the following description. However, it should be understood that these details in practice should not limit present disclosure. In other words, in some embodiments of present disclosure, these details in practice are unnecessary. In addition, for simplicity of the drawings, some conventionally used structures and elements will be shown in a simple schematic manner in the drawings. The same reference numbers are used in the drawings and the description to refer to the same or like parts.

[0033]Hereinafter, the structure and function of each component included in a fan assembly 100 of this embodiment and the connection relationship between the components will be described in detail.

[0034]Reference is made to FIG. 1. FIG. 1 is a perspective view of a fan assembly 100 in accordance with an embodiment of the present disclosure. As shown in FIG. 1, in this embodiment, the fan assembly 100 includes a motor MT, a frame body 110, and a fan blade 120. The motor MT and the fan blade 120 are located in the frame body 110. The frame body 110 has a first opening OP1 and a second opening OP2. The fan blade 120 includes a wheel hub 1201, a shaft 1202 connected to a center of the wheel hub 1201, and a plurality of blades 1203 extending radially outward from the wheel hub 1201 as a center, and the shaft 1202 is pivotally connected to the motor MT. The fan blade 120 is driven by the motor MT to rotate relative to the shaft 1202 that extends in a direction (e.g., z-direction). The wheel hub 1201 of the fan blade 120 and a portion of the blades 1203 connected to the wheel hub 1201 are exposed in the first opening OP1.

[0035]In some embodiments, the first opening OP1 is located on a top portion of the frame body 110. In some embodiments, the frame body 110 includes a second opening OP2 different from the first opening OP1. Specifically, the first opening OP1 is disposed on the top portion of the frame body 110, and the second opening OP2 is disposed on a side of the frame body 110. In some embodiments, the first opening OP1 is configured as an air inlet of the fan assembly 100 and the second opening OP2 is configured as an air outlet of the fan assembly 100. In this case, a heating element (not shown) is located on a side of the second opening OP2 (the air outlet), and an airflow generated through the air outlet of the fan assembly 100 achieves the effect of dissipating heat from the heating element.

[0036]In some embodiments, the motor MT is pivotally connected to the shaft 1202 of the fan blade 120 and corresponds to the center of the wheel hub 1201 and a center of the first opening OP1.

[0037]In some embodiments, the first opening OP1 is circular. However, the present disclosure is not intended to limit the shape of the first opening OP1.

[0038]Reference is made to FIG. 2. FIG. 2 is a perspective view of a fan blade 120 in accordance with an embodiment of the present disclosure. As shown in FIG. 2, in this embodiment, the fan blade 120 further includes a disk body 122, and each of the blades 1203 includes a first blade 124 and a second blade 126. A plurality of first blades 124 protrude from the disk body 122 along a direction (e.g., z-direction). The plurality of first blades 124 surround the wheel hub 1201. As shown in FIG. 1 and FIG. 2, the plurality of first blades 124 correspond to the first opening OP1 of the frame body 110. A plurality of second blades 126 protrude from the disk body 122 along a direction (e.g., z-direction). The plurality of second blades 126 surround the plurality of first blades 124. As shown in FIG. 1 and FIG. 2, the plurality of second blades 126 are in the frame body 110. Specifically, the plurality of first blades 124 are in an inner ring of the disk body 122, and the plurality of second blades 126 are in an outer ring of the disk body 122. The plurality of first blades 124 are located on a side of the disk body 122 close to the wheel hub 1201, and an end of each of the first blades 124 is connected to the wheel hub 1201. The plurality of second blades 126 are located on a side of the disk body 122 away from the wheel hub 1201, and an end of each of the second blades 126 is connected to the other end of each of the first blades 124.

[0039]In some embodiments, a shape of the fan blade 120 is generally circular in a top view (e.g., in a top view along z-direction). However, the present disclosure is not intended to limit the shape of the fan blade 120.

[0040]In some embodiments, a shape of the disk body 122 is generally circular in a top view (e.g., in a top view along z-direction). However, the present disclosure is not intended to limit the shape of the disk body 122.

[0041]In some embodiments, the plurality of second blades 126 are connected to the plurality of first blades 124. In some embodiments, the disk body 122, the plurality of first blades 124, and the plurality of second blades 126 are formed integrally.

[0042]Reference is made to FIG. 3. FIG. 3 is a cross-sectional view of the fan assembly 100 based on a section A-A′ of FIG. 1 in accordance with an embodiment of the present disclosure. As shown in FIG. 1, the section A-A′ extends parallel along a direction (e.g., x-direction) and passes through the motor MT, the frame body 110, and the fan blade 120. As shown in FIG. 3, in this embodiment, the frame body 110 further has an accommodating space AS. The accommodating space AS communicates the first opening OP1 and the second opening OP2. The motor MT is located in the accommodating space AS of the frame body 110. The plurality of first blades 124 and the plurality of second blades 126 of the fan blade 120 are located in the accommodating space AS of the frame body 110. As shown in FIG. 3, the frame body 110 includes a bottom plate 112, a top plate 114, and a side plate 116. The accommodating space AS is jointly defined by the bottom plate 112, the top plate 114, and the side plate 116. The first opening OP1 is located on the top plate 114 of the frame body 110. The frame body 110 further has a top surface 110a. Specifically, the top surface 110a of the frame body 110 is located on the top plate 114. The plurality of first blades 124 correspond to the first opening OP1 located on the top plate 114 of the frame body 110. Specifically, the wheel hub 1201 and the plurality of first blades 124 pass through the first opening OP1 of the frame body 110. In some embodiments, the wheel hub 1201 and the plurality of first blades 124 are exposed in the first opening OP1, while the plurality of second blades 126 are located in the accommodating space AS and are not exposed in the first opening OP1. In some other embodiments, the plurality of first blades 124 are exposed in the first opening OP1 and a portion of the plurality of second blades 126 (i.e., a portion of the plurality of second blades 126 close to the plurality of first blades 124) are exposed in the first opening OP1.

[0043]Reference is made again to FIG. 3. As shown in FIG. 3, the disk body 122 has a top surface 122a and a bottom surface 122b. The plurality of first blades 124 have a top surface 124a and a bottom surface 124b. The plurality of second blades 126 have a top surface 126a and a bottom surface 126b. The plurality of first blades 124 and the plurality of second blades 126 extend from the top surface 122a and the bottom surface 122b of the disk body 122. That is, the plurality of first blades 124 and the plurality of second blades 126 extend upwardly from the top surface 122a of the disk body 122 and extend downwardly from the bottom surface 122b of the disk body 122, respectively. The top surface 124a of the plurality of first blades 124 and the top surface 110a of the frame body 110 are coplanar. As shown in FIG. 3, the plurality of first blades 124 have a first thickness T₁₂₄ in a direction (e.g., z-direction). The plurality of second blades 126 have a second thickness T₁₂₆ in a direction (e.g., z-direction). Specifically, the first thickness T₁₂₄ of the plurality of first blades 124 is a distance from the bottom surface 124b to the top surface 124a. The second thickness T₁₂₆ of the plurality of second blades 126 is a distance from the bottom surface 126b to the top surface 126a.

[0044]In some embodiments, the first thickness T₁₂₄ of the plurality of first blades 124 in a direction (e.g., z-direction) is greater than the second thickness T₁₂₆ of the plurality of second blades 126 in a direction (e.g., z-direction).

[0045]In some embodiments, the top surface 124a of the plurality of first blades 124 and the top surface 126a of the plurality of second blades 126 are higher than the top surface 122a of the disk body 122. In some embodiments, the bottom surface 124b of the plurality of first blades 124 and the bottom surface 126b of the plurality of second blades 126 are lower than the bottom surface 122b of the disk body 122.

[0046]In some other implementations, the bottom surface 124b of the plurality of first blades 124, the bottom surface 126b of the plurality of second blades 126, and the bottom surface 122b of the disk body 122 are coplanar.

[0047]Reference is made again to FIG. 3. As shown in FIG. 3, the accommodating space AS of the frame body 110 has a height H_AS in a direction (e.g., z-direction). Specifically, the height H_AS of the accommodating space AS of the frame body 110 is a distance from the bottom plate 112 to the top plate 114. In some embodiments, the second thickness T₁₂₆ of the plurality of second blades 126 in a direction (e.g., z-direction) is less than or equal to the height H_AS of the accommodating space AS in a direction (e.g., z-direction). In some embodiments in which the second thickness T₁₂₆ of the plurality of second blades 126 in a direction (e.g., z-direction) is equal to the height H_AS of the accommodating space AS in a direction (e.g., z-direction), since the plurality of second blades 126 occupy the accommodating space AS as much as possible, the area of work done by the rotation of the fan blade 120 can be maximized.

[0048]In some embodiments, the height H_AS of the accommodating space AS of the frame body 110 is less than or equal to about 2 millimeters (mm). However, the present disclosure is not intended to limit the value of the height H_AS of the accommodating space AS of the frame body 110.

[0049]In some embodiments, the first thickness T124 of the plurality of first blades 124 is less than or equal to about 2 millimeters (mm). However, the present disclosure is not intended to limit the value of the first thickness T₁₂₄ of the plurality of first blades 124.

[0050]Reference is made again to FIG. 3. As shown in FIG. 3, the accommodating space AS of the frame body 110 has a width W_AS in a direction (e.g., x-direction). The first opening OP1 has a diameter D_OP in a direction (e.g., x-direction or y-direction). The fan blade 120 has a diameter D₁₂₀ in a direction (e.g., x-direction or y-direction). In some embodiments, the diameter D₁₂₀ of the fan blade 120 is larger than the diameter D_OP of the first opening OP1. The diameter D₁₂₀ of the fan blade 120 in a direction (e.g., x-direction or y-direction) is less than or equal to the width W_AS of the accommodating space AS in a direction (e.g., x-direction or y-direction). In some embodiments in which the diameter D₁₂₀ of the fan blade 120 in a direction (e.g., x-direction or y-direction) is equal to the width W_AS of the accommodating space AS in a direction (e.g., x-direction or y-direction), since the plurality of second blades 126 occupy the accommodating space AS as much as possible, the area of work done by the rotation of the fan blade 120 can be maximized.

[0051]With the aforementioned structural configuration, since the plurality of first blades 124 and the plurality of second blades 126 of the fan blade 120 occupy the accommodating space AS as much as possible, the first blades 124 and the second blades 126 that are relatively enlarged become a vital factor influencing the heat dissipation efficiency of the fan assembly 100 in the ultra-thin fan assembly. More specifically, it has been verified that the fan assembly 100 of the present disclosure can increase the air pressure by about two percent (2%) and the air flow rate by about sixteen percent (16%) as compared to a customary fan assembly. As a result, the fan assembly 100 of the present disclosure is effective in improving the heat dissipation performance, and successfully breaks the bottleneck that the ultra-thin fan cannot improve the heat dissipation performance.

[0052]From the above detailed description of the specific embodiments of the present disclosure, it can be clearly seen that in the fan assembly of the present disclosure, since the fan blade includes the first blades and the second blades, and the first thickness of the first blades is larger than the second thickness of the second blades, the overall area of work of the fan blade can be increased.

[0053]Although the present disclosure has been described in considerable detail with reference to certain embodiments thereof, other embodiments are possible. Therefore, the spirit and scope of the appended claims should not be limited to the description of the embodiments contained herein.

[0054]It will be apparent to those skilled in the art that various modifications and variations can be made to the structure of the present disclosure without departing from the scope or spirit of the disclosure. In view of the foregoing, it is intended that the present disclosure cover modifications and variations of this disclosure provided they fall within the scope of the following claims.