Fan blade assembly and fan

Abstract

The utility model relates to the technical field of fan structures, and provides a fan blade assembly and a fan, a plurality of reinforcing ribs are uniformly distributed around the axis of a mounting hole, each reinforcing rib comprises a first reinforcing section and a second reinforcing section, the first reinforcing section is fixed on a bottom wall, the second reinforcing section is fixed on the bottom wall and a peripheral side wall, and the first reinforcing section is fixed with the second reinforcing section. The second reinforcing section comprises a supporting plate and a supporting column, the axis of the supporting column is parallel to the axis of the mounting hole, the supporting column and the supporting plate are fixed, and the reinforcing ribs are clamped among the motor, the bottom wall and the peripheral side wall; the multiple fan blades are installed on the peripheral side of the hub and evenly distributed around the axis of the rotor. A heat dissipation channel is formed between every two adjacent reinforcing ribs, and part of airflow can enter the heat dissipation channels to dissipate heat of the shell of the motor. The supporting plate can conduct the acting force to the supporting column, the supporting column is not prone to radial deformation, and therefore the structural strength of the second reinforcing section is maintained.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan structure technical field especially, it relates to a fan blade assembly and fan. BACKGROUND

[0002] The motor generates heat in the operation process, and the heat is mainly caused by winding resistance loss, iron core eddy current loss and mechanical friction. If the heat cannot be dissipated in time, the temperature of the motor will rise, which will cause the motor failure.

[0003] And the hub of the fan blade is driven by the rotor, and the structural strength determines the service life of the fan. Under the output of the motor with high power, the existing hub often breaks.

[0004] Therefore, a fan blade assembly and fan are needed to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a fan blade assembly and fan, which can dissipate heat for the motor and have relatively high structural strength.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The fan blade assembly is rotatably installed on a shell for installing a motor, and comprises:

[0008] The hub comprises a bottom wall, a peripheral side wall and a reinforcing rib, the bottom wall is fixed with the peripheral side wall, an installation hole for connecting with the motor rotor is arranged at the center of the bottom wall, a plurality of reinforcing ribs are arranged, the reinforcing ribs are uniformly arranged around the axis of the installation hole, the reinforcing rib comprises a first reinforcing section and a second reinforcing section, the first reinforcing section is fixed to the bottom wall, the second reinforcing section is fixed to the bottom wall and the peripheral side wall, the first reinforcing section is fixed with the second reinforcing section, the second reinforcing section comprises a support plate and a support column, the axis of the support column is parallel to the axis of the installation hole, the support column is fixed with the support plate, and the reinforcing rib is clamped between the motor and the bottom wall and the peripheral side wall;

[0009] The fan blade is provided with a plurality of fan blades, and the plurality of fan blades are installed on the peripheral side of the hub and are uniformly distributed around the axis of the rotor.

[0010] As an optimal technical solution of the fan blade assembly, the first reinforcing section is chamfered on the side opposite to the bottom wall.

[0011] As an optimal technical solution of the fan blade assembly, the support plate of the second reinforcing section is chamfered on the side close to the axis of the installation hole.

[0012] As a preferred technical solution for the aforementioned fan blade assembly, the bottom wall is provided with a first vent hole, and multiple first vent holes are provided. The multiple first vent holes are evenly distributed around the axis of the mounting hole and are alternately distributed with the first reinforcing section.

[0013] As a preferred technical solution for the aforementioned fan blade assembly, the first vent hole is provided with a first guide surface.

[0014] As a preferred technical solution for the aforementioned fan blade assembly, a second vent hole is provided at the connection position between the bottom wall and the peripheral side wall. Multiple second vent holes are provided, and the multiple second vent holes are evenly distributed around the axis of the mounting hole, alternating with the second reinforcing section.

[0015] As a preferred technical solution for the aforementioned fan blade assembly, the second vent hole is provided with a second guide surface.

[0016] As a preferred technical solution for the aforementioned fan blade assembly, the bottom wall is provided with a mounting base at the aforementioned mounting hole for connecting the aforementioned rotor, and the aforementioned first reinforcing section is fixed to the aforementioned mounting base.

[0017] As a preferred technical solution of the aforementioned fan blade assembly, it further includes a frame, which is fitted over the aforementioned hub and connects multiple aforementioned fan blades.

[0018] A fan is also provided, including a motor and the aforementioned fan blade assembly, wherein the output end of the rotor of the motor is connected to the aforementioned fan blade assembly.

[0019] The beneficial effects of this utility model are:

[0020] This utility model provides a fan blade assembly, rotatably mounted on a housing for mounting a motor, including a hub and fan blades. The hub includes a bottom wall, peripheral side walls, and reinforcing ribs. The bottom wall is fixed to the peripheral side walls. A mounting hole for connecting to the motor rotor is provided at the axial center of the bottom wall. Multiple reinforcing ribs are evenly distributed around the axis of the mounting hole. Each reinforcing rib includes a first reinforcing section and a second reinforcing section. The first reinforcing section is fixed to the bottom wall, and the second reinforcing section is fixed to both the bottom wall and the peripheral side walls. The first and second reinforcing sections are fixed together. The second reinforcing section includes a support plate and a support column. The axis of the support column is parallel to the axis of the mounting hole, and the support column is fixed to the support plate. The reinforcing ribs are sandwiched between the motor and the bottom wall and peripheral side walls. Multiple fan blades are provided, mounted on the periphery of the hub and evenly distributed around the rotor axis.

[0021] Specifically, the motor housing contains a stator and a rotor. When energized, a magnetic field is generated around the stator, driving the rotor to rotate. During the energizing process, the stator generates a large amount of heat, which is transferred to the housing. The fan blade assembly includes a hub and fan blades. The bottom wall and peripheral sidewalls of the hub form a cavity, into which the motor can be inserted. The motor rotor is fixed by insertion into the mounting holes on the bottom wall. Reinforcing ribs are provided inside the hub. The first reinforcing section forms a keel, which can enhance the structural strength of the bottom wall. The second reinforcing section can enhance the structural strength at the connection between the bottom wall and the peripheral sidewall. The first reinforcing section makes the axial end face of the motor housing spaced apart from the bottom wall, and the second reinforcing section makes the sidewall of the motor housing spaced apart from the peripheral sidewall. A heat dissipation channel is formed between two adjacent reinforcing ribs, allowing some airflow to enter the heat dissipation channel to cool the motor housing.

[0022] Furthermore, in this embodiment, the second reinforcing section includes a support plate and a support column. The support column is located in the middle of the support plate. According to stress analysis, the support plate can transmit the force to the support column, and the support column is not prone to radial deformation, thereby maintaining the structural strength of the second reinforcing section.

[0023] A fan is also provided, including a motor and the aforementioned blade assembly, wherein the output end of the motor rotor is connected to the blade assembly. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0025] Figure 1 This is an exploded view of the fan blade assembly and motor provided in an embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the fan blade assembly provided in an embodiment of the present invention.

[0027] In the picture:

[0028] 1. Fan blade assembly; 2. Motor;

[0029] 100. Hub; 110. Bottom wall; 111. Mounting hole; 112. First vent hole; 113. Second vent hole; 120. Peripheral side wall; 130. Reinforcing rib; 131. First reinforcing section; 132. Second reinforcing section; 1321. Support plate; 1322. Support column; 140. Mounting base;

[0030] 200. Fan blades;

[0031] 300. Border. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0036] like Figure 1 and Figure 2As shown, this utility model provides a fan blade assembly 1, rotatably mounted on a housing for mounting a motor 2, including a hub 100 and fan blades 200. The hub 100 includes a bottom wall 110, a peripheral side wall 120, and reinforcing ribs 130. The bottom wall 110 is fixed to the peripheral side wall 120. A mounting hole 111 for connecting to the rotor of the motor 2 is provided at the axial position of the bottom wall 110. Multiple reinforcing ribs 130 are provided, evenly distributed around the axis of the mounting hole 111. Each reinforcing rib 130 includes a first reinforcing section 131 and a second reinforcing section 132. The first reinforcing section 131 is fixed to the bottom wall 110, and the second reinforcing section 132 is fixed to the bottom wall. 110 and peripheral sidewall 120, the first reinforcing section 131 and the second reinforcing section 132 are fixed, the second reinforcing section 132 includes a support plate 1321 and a support column 1322, the axis of the support column 1322 is parallel to the axis of the mounting hole 111, the support column 1322 is fixed to the support plate 1321, and the reinforcing rib 130 is sandwiched between the motor 2 and the bottom wall 110 and the peripheral sidewall 120; the fan blade 200 is provided with multiple blades, the multiple fan blades 200 are installed on the periphery of the hub 100 and are evenly distributed around the axis of the rotor.

[0037] Specifically, the motor 2 has a stator and a rotor installed inside its housing. When energized, a magnetic field is generated around the stator to drive the rotor to rotate. During the energization process, the stator generates a large amount of heat, which is then transferred to the housing. The fan blade assembly 1 includes a hub 100 and fan blades 200. The bottom wall 110 and the peripheral side wall 120 of the hub 100 form a cavity, in which the motor 2 can be inserted. The rotor of the motor 2 is inserted and fixed to the mounting hole 111 of the bottom wall 110. The hub 100 is provided with reinforcing ribs 130. The first reinforcing section 131 forms a keel, which can enhance the structural strength of the bottom wall 110. The second reinforcing section 132 can enhance the structural strength of the connection between the bottom wall 110 and the peripheral side wall 120. The first reinforcing section 131 makes the axial end face of the motor 2 housing spaced apart from the bottom wall 110. The second reinforcing section 132 makes the side wall of the motor 2 housing spaced apart from the peripheral side wall 120. A heat dissipation channel is formed between two adjacent reinforcing ribs 130, and some airflow can enter the heat dissipation channel to dissipate heat from the motor 2 housing.

[0038] Furthermore, in this embodiment, the second reinforcing section 132 includes a support plate 1321 and a support column 1322. The support column 1322 is disposed in the middle of the support plate 1321. According to stress analysis, the support plate 1321 can transmit the force to the support column 1322. The support column 1322 is not prone to radial deformation, thereby maintaining the structural strength of the second reinforcing section 132.

[0039] Optionally, the side of the first reinforcing section 131 facing away from the bottom wall 110 is chamfered. The first reinforcing section 131 is chamfered.

[0040] Optionally, the support plate 1321 of the second reinforcing section 132 has a chamfer on the side near the axis of the mounting hole 111. By providing a chamfer on the side near the mounting hole 111, the chamfer on the support plate 1321 can serve as a guide, allowing the motor 2 to be inserted into the hub 100 along the chamfer when the motor 2 is assembled with the fan blade assembly 1.

[0041] Optionally, the bottom wall 110 is provided with a first vent hole 112. Multiple first vent holes 112 are evenly distributed around the axis of the mounting hole 111 and alternate with the first reinforcing section 131. With this configuration, when the fan blade assembly 1 rotates, the airflow can pass through the first vent holes 112 and contact the housing of the motor 2 to exchange heat with the motor 2 and cool the motor 2.

[0042] Optionally, the first vent 112 is provided with a first guide surface. For example, the first vent 112 is provided with a first guide surface A and a first guide surface B on opposite side walls of the mounting hole 111 in the circumferential direction. When the fan blade assembly 1 rotates clockwise, the airflow can enter the first vent 112 along the first guide surface A, and when the fan blade assembly 1 rotates counterclockwise, the airflow can enter the first vent 112 along the first guide surface B.

[0043] Optionally, a second vent hole 113 is provided at the connection position between the bottom wall 110 and the peripheral side wall 120. Multiple second vent holes 113 are provided and are evenly distributed around the axis of the mounting hole 111, alternating with the second reinforcing section 132.

[0044] Optionally, the second vent 113 is provided with a second guide surface. For example, the second vent 112 is provided with a second guide surface A and a second guide surface B on opposite side walls of the mounting hole 111 in the circumferential direction. When the fan blade assembly 1 rotates clockwise, the airflow can enter the second vent 113 along the second guide surface A, and when the fan blade assembly 1 rotates counterclockwise, the airflow can enter the second vent 113 along the second guide surface B.

[0045] Furthermore, the first vent 112 is mainly used to dissipate heat from the axial end face of the motor 2 housing, and the second vent 113 is mainly used to dissipate heat from the circumferential end face of the motor 2 housing.

[0046] Optionally, the bottom wall 110 is provided with a mounting base 140 at the mounting hole 111 for connecting the rotor, and the first reinforcing section 131 is fixed to the mounting base 140. With this configuration, the mounting base 140 can strengthen the structural strength at the mounting hole 111 of the bottom wall 110, so that the rotor can be connected to the fan blade assembly 1 more stably.

[0047] Optionally, the fan blade assembly 1 further includes a frame 300, which is fitted over the hub 100 and connects multiple fan blades 200. For example, the frame 300 connects the edges of all fan blades 200, so that the two ends of the fan blades 200 are respectively connected to the peripheral sidewall 120 of the hub 100 and the frame 300, so that the fan blades 200 can maintain relative stability with the hub 100 and reduce swaying.

[0048] A fan is also provided, including a motor 2 and the aforementioned fan blade assembly 1, wherein the output end of the rotor of the motor 2 is connected to the fan blade assembly 1.

[0049] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A fan assembly, pivotally mounted to a housing for mounting an electric motor (2), characterised in that, Comprising: A hub (100) comprising a bottom wall (110), a peripheral wall (120) and reinforcing ribs (130), the bottom wall (110) is fixed with the peripheral wall (120), the bottom wall (110) is provided with a mounting hole (111) for connecting with the rotor of the motor (2) at the axial position, the reinforcing ribs (130) are provided with a plurality of reinforcing ribs (130), the reinforcing ribs (130) are uniformly arranged around the axis of the mounting hole (111), the reinforcing ribs (130) comprise a first reinforcing section (131) and a second reinforcing section (132), the first reinforcing section (131) is fixed to the bottom wall (110), the second reinforcing section (132) is fixed to the bottom wall (110) and the peripheral wall (120), the first reinforcing section (131) is fixed with the second reinforcing section (132), the second reinforcing section (132) comprises a support plate (1321) and a support column (1322), the axis of the support column (1322) is parallel to the axis of the mounting hole (111), the support column (1322) is fixed with the support plate (1321), the reinforcing ribs (130) are clamped between the motor (2) and the bottom wall (110) and the peripheral wall (120); A plurality of fan blades (200) are provided, the plurality of fan blades (200) are installed on the peripheral side of the hub (100) and are uniformly distributed around the axis of the rotor.

2. The leaf assembly of claim 1, wherein The side of the first reinforcing section (131) opposite to the bottom wall (110) is chamfered.

3. The leaf assembly of claim 1, wherein, The side of the support plate (1321) of the second reinforcing section (132) close to the axis of the mounting hole (111) is chamfered.

4. The leaf assembly of claim 1, wherein, The bottom wall (110) is provided with a first air hole (112), the first air hole (112) is provided with a plurality of first air holes (112), the plurality of first air holes (112) are uniformly distributed around the axis of the mounting hole (111) and are alternately distributed with the first reinforcing section (131).

5. The leaf assembly of claim 4, wherein, The first air hole (112) is provided with a first guide surface.

6. The leaf assembly of claim 1, wherein The connection position of the bottom wall (110) and the peripheral wall (120) is provided with a second air hole (113), the second air hole (113) is provided with a plurality of second air holes (113), the plurality of second air holes (113) are uniformly distributed around the axis of the mounting hole (111) and are alternately distributed with the second reinforcing section (132).

7. The leaf assembly of claim 6, wherein, The second air hole (113) is provided with a second guide surface.

8. The leaf assembly of claim 1, wherein, The bottom wall (110) is provided with a mounting seat (140) at the mounting hole (111) for connecting the rotor, the first reinforcing section (131) is fixed with the mounting seat (140).

9. The leaf assembly of any of claims 1-8, wherein, Further comprising a frame (300), the frame (300) is sleeved outside the hub (100), and the frame (300) connects a plurality of fan blades (200).

10. A fan characterised by Comprising a motor (2) and a fan blade assembly (1) according to any one of claims 1-9, the output end of the rotor of the motor (2) is connected with the fan blade assembly (1).

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