阅读说明：本技术 风扇和具有风扇的电气设备 (Fan and electric device with fan ) 是由 马强 于 2018-07-13 设计创作，主要内容包括：本发明实施例提供一种风扇和具有风扇的电气设备。该风扇包括：马达部,其绕中心轴线旋转；安装部,其支撑该马达部；以及叶轮部,其随着该马达部的旋转而绕该中心轴线旋转,该叶轮部具有：杯部,其收纳该马达部并随着该马达部的旋转而旋转；叶片支撑部,其从该杯部的外周向径向外侧延伸；以及多个叶片,其沿周向间隔地配置在该叶片支撑部上,该叶片支撑部具有多个孔部和多个肋部,该孔部和该肋部沿周向交替配置,该多个叶片的径向内侧的至少一部分配置于该多个肋部的轴向一侧的表面。通过本发明实施例,能够从风扇的两侧进气,在维持风扇的散热性能的情况下降低制造成本。(The embodiment of the invention provides a fan and electrical equipment with the same. The fan includes: a motor portion that rotates around a central axis; a mounting portion supporting the motor portion; and an impeller portion that rotates around the central axis in accordance with rotation of the motor portion, the impeller portion having: a cup part which receives the motor part and rotates along with the rotation of the motor part; a blade support portion extending radially outward from an outer periphery of the cup portion; and a plurality of blades arranged on the blade support portion at intervals in the circumferential direction, the blade support portion having a plurality of holes and a plurality of ribs, the holes and the ribs being alternately arranged in the circumferential direction, at least a part of the radially inner sides of the plurality of blades being arranged on the surface of one side in the axial direction of the plurality of ribs. According to the embodiment of the invention, air can be fed from two sides of the fan, and the manufacturing cost is reduced while the heat dissipation performance of the fan is maintained.)

1. A fan, the fan comprising:

a motor portion that rotates around a central axis;

a mounting portion supporting the motor portion; and

an impeller portion that rotates about the central axis in accordance with rotation of the motor portion,

the impeller portion has:

a cup portion that houses the motor portion and rotates with rotation of the motor portion;

a blade support portion extending radially outward from an outer periphery of the cup portion; and

a plurality of blades arranged on the blade support portion at intervals in a circumferential direction,

it is characterized in that the preparation method is characterized in that,

the blade support portion has a plurality of holes and a plurality of ribs, the holes and ribs being alternately arranged in a circumferential direction,

at least a part of the radially inner side of the plurality of blades is disposed on the surface of one side in the axial direction of the plurality of ribs.

2. The fan as claimed in claim 1,

the circumferential extent of the rib is greater than the circumferential extent of the blade.

3. The fan as claimed in claim 1,

the rib and the blade are each curved when viewed in the axial direction, and the curvature of the rib is the same as the curvature of the blade.

4. The fan as claimed in claim 1,

the hole portions are respectively arranged on both circumferential sides of at least a part of the radially inner side of each of the blades.

5. The fan as claimed in claim 1,

the number of the blades is the same as the number of the ribs.

6. The fan as claimed in claim 1,

the hole portion is a quadrangle when viewed in the axial direction.

7. The fan as claimed in claim 1,

the hole portion has a circumferential width on a radially inner side smaller than a circumferential width on a radially outer side.

8. The fan as claimed in claim 1,

the plurality of holes are arranged at equal intervals in the circumferential direction.

9. The fan as claimed in claim 1,

the ratio between the sum of the areas of the plurality of hole portions and the area of the blade support portion was 9.6%.

10. The fan as claimed in claim 1,

the impeller portion further includes an annular rib that is formed in an annular shape and is disposed at an end portion of the plurality of blades on a side away from the blade support portion.

11. The fan as claimed in claim 1,

the mounting part has a disk-shaped base part, a motor supporting part for supporting the motor part is arranged at the center of the base part,

the base portion is provided with a plurality of first through holes along the circumferential direction on the radially outer side of the motor support portion, each of the first through holes is provided with a cross-shaped cross connecting portion, and the cross connecting portion divides each of the first through holes into a plurality of second through holes.

12. The fan as claimed in claim 11,

the cross-connecting portion divides each of the first through-holes into four second through-holes.

13. The fan as claimed in claim 1,

the plurality of blades are arranged at equal intervals in the circumferential direction.

14. An electrical apparatus having a fan according to any one of claims 1 to 13.

Technical Field

The invention relates to the technical field of heat dissipation, in particular to a fan and electrical equipment with the same.

Background

Fans are widely installed in electrical appliances such as home appliances and office automation equipment. In the prior art, the intake and exhaust of the fan are realized by a plurality of blades, and the heat dissipation of the electrical equipment is realized by the intake and exhaust of the fan.

It should be noted that the above background description is only for the convenience of clear and complete description of the technical solutions of the present application and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the present application.

Disclosure of Invention

The inventors have found that it is desirable for manufacturers of fans or electrical equipment to increase the heat dissipation performance of the fan or to reduce the manufacturing cost while maintaining the heat dissipation performance of the fan.

In order to solve at least one of the above problems, embodiments of the present invention provide a fan and an electric apparatus having the same, which can intake air from both sides of the fan and reduce manufacturing costs while maintaining heat dissipation performance of the fan.

According to a first aspect of embodiments of the present invention, there is provided a fan including: a motor portion that rotates around a central axis; a mounting portion supporting the motor portion; and an impeller portion that rotates around the central axis in accordance with rotation of the motor portion, the impeller portion having: a cup part which receives the motor part and rotates along with the rotation of the motor part; a support portion extending radially outward from an outer periphery of the cup portion; and a plurality of blades arranged on the support portion at predetermined intervals in the circumferential direction, the support portion having a plurality of holes and a plurality of ribs, the holes and the ribs being alternately arranged in the circumferential direction, at least a part of the radially inner sides of the plurality of blades being arranged on the surface of one side of the rib in the axial direction.

In one embodiment, the circumferential extent of the rib is greater than the circumferential extent of the blade.

In one embodiment, the rib and the blade are each curved when viewed in the axial direction, and the curvature of the rib is the same as the curvature of the blade.

In one embodiment, the hole portions are respectively disposed on both circumferential sides of at least a portion of the radially inner side of each blade.

In one embodiment, the number of the blades is the same as the number of the ribs.

In one embodiment, the hole is a square when viewed in the axial direction.

In one embodiment, the hole portion has a circumferential width on a radially inner side smaller than a circumferential width on a radially outer side.

In one embodiment, the plurality of holes are arranged at equal intervals in the circumferential direction.

In one embodiment, a ratio of a total area of the plurality of hole portions to an area of the blade support portion is 9.6%.

In one embodiment, the impeller portion further includes an annular rib which is formed in an annular shape and is disposed at an end portion of the plurality of blades on a side away from the blade support portion.

In one embodiment, the mounting portion has a disk-shaped base portion, a motor support portion supporting the motor portion is provided at a center of the base portion, a plurality of first through holes are provided in the base portion in a circumferential direction on a radially outer side of the motor support portion, a cross-shaped cross-connecting portion is provided in each of the first through holes, and the cross-connecting portion divides each of the first through holes into a plurality of second through holes.

In one embodiment, the cross-connecting portion divides each of the first through-holes into four second through-holes.

In one embodiment, the plurality of blades are arranged at equal intervals in the circumferential direction.

According to a second aspect of embodiments of the present invention, there is provided an electrical apparatus comprising the fan of the first aspect described above.

The embodiment of the invention has the advantages that air can be fed from two sides of the fan, and the manufacturing cost is reduced while the heat dissipation performance of the fan is maintained.

Embodiments of the present invention are disclosed in detail with reference to the following description and the accompanying drawings. It should be understood that the embodiments of the invention are not so limited in scope. The embodiments of the invention include many variations, modifications and equivalents within the spirit and scope of the appended claims.

Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.

It should be emphasized that the term "comprises/comprising/comprises/having" when used herein, is taken to specify the presence of stated features, integers or components, but does not preclude the presence or addition of one or more other features, integers or components.

Drawings

The above and other objects, features and advantages of the embodiments of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic exploded perspective view of a fan in embodiment 1 of the present invention.

Fig. 2 is a cross-sectional view of the fan of embodiment 1 of the present invention along the X-X direction in fig. 1.

Fig. 3 is a schematic view of the impeller portion of example 1 of the present invention as viewed from one axial side.

Fig. 4 is a schematic view of the impeller portion of example 1 of the present invention as viewed from the other side in the axial direction.

Fig. 5 is a partially enlarged view of a portion within a dashed line frame in fig. 3.

Detailed Description

The foregoing and other features of the invention will become apparent from the following description taken in conjunction with the accompanying drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the embodiments in which the principles of the invention may be employed, it being understood that the invention is not limited to the embodiments described, but is intended to cover all modifications and equivalents as fall within the scope of the appended claims.

In the embodiments of the present invention, the terms "first", "second", and the like are used for distinguishing different elements by name, but do not denote a spatial arrangement, a temporal order, or the like of the elements, and the elements should not be limited by the terms. The term "and/or" includes any and all combinations of one or more of the associated listed terms. The terms "comprising," "including," "having," and the like, refer to the presence of stated features, elements, components, and do not preclude the presence or addition of one or more other features, elements, components, and elements.

In embodiments of the invention, the singular forms "a", "an", and the like include the plural forms and are to be construed broadly as "a" or "an" and not limited to the meaning of "a" or "an"; furthermore, the term "comprising" should be understood to include both the singular and the plural, unless the context clearly dictates otherwise. Further, the term "according to" should be understood as "at least partially according to … …," and the term "based on" should be understood as "based at least partially on … …," unless the context clearly dictates otherwise.

In the following description of the present invention, for the sake of convenience of description, a center line about which a rotating portion of a motor can rotate is referred to as a "center axis", a direction that is the same as or parallel to a direction extending along the center axis is referred to as an "axial direction", a radial direction about the center axis is referred to as a "radial direction", and a direction around the center axis is referred to as a "circumferential direction".

The following describes embodiments of the present invention with reference to the drawings.