fan

Abstract

To provide an impeller and a fan in which vibration influencing on the safety of a structure of the entire heat radiator when operating the fan.SOLUTION: A fan is equipped with a motor 10, an impeller 20 that is disposed around the motor and is driven by the motor to rotate, and a supporting portion 30 that supports the motor and the impeller. The supporting portion is equipped with a first supporting portion 31 that supports the motor, an attaching portion 32 that is disposed around the first supporting portion and has a space from the first supporting portion, and a connecting portion 33 that connects the first supporting portion and the attaching portion. The connecting portion is provided so as to incline from the first supporting portion to the attaching portion, has a projecting portion projecting to one side approaching the impeller, and at least at a part of the projecting portion extends to the attaching portion.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a fan. [Background technology]

[0002] 2. Description of the Related Art With the rapid development of electronic technology, the amount of heat generated by electronic components during operation is increasing. In order to ensure the normal operation of electronic components, fans are generally used in the industry to dissipate heat from electronic components. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2014-088787 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, when the fan is operating, it may cause problems such as vibration, which may affect the structural stability of the entire heat dissipation device.

[0005] SUMMARY OF THE DISCLOSURE To address the problems identified in the background art above, embodiments of the present invention provide an impeller and fan. [Means for solving the problem]

[0006] According to one aspect of the embodiment of the present invention, a fan includes a motor, an impeller arranged to surround the motor and driven to rotate by the motor, and a support part supporting the motor and the impeller. The support part includes a first support part supporting the motor, a mounting part arranged to surround the first support part and spaced from the first support part, and a connection part connecting the first support part and the mounting part. The connection part is provided at an angle from the first support part to the mounting part, and has a protruding part protruding to one side approaching the impeller, and at least a part of the protruding part extends to the mounting part. Effect of the Invention

[0007] One of the beneficial effects of the embodiment of the present invention is that the provision of a protrusion at the connection portion of the support increases the number of paths for transmission of vibrations from the motor, thereby reducing vibrations during fan rotation. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic view of a fan according to an embodiment of the present invention from one angle. [Diagram 2] FIG. 2 is a schematic view of a fan according to an embodiment of the present invention from another angle. [Diagram 3] FIG. 3 is a schematic diagram of an axial cross section of a fan according to an embodiment of the present invention. [Figure 4] FIG. 4 is a schematic diagram of a fan support according to an embodiment of the present invention. [Diagram 5] FIG. 5 is a top view of a support part of a fan according to an embodiment of the present invention. [Figure 6] FIG. 6 is a schematic view of a fan impeller according to an embodiment of the present invention from one angle. [Figure 7] FIG. 7 is a schematic view of a fan impeller according to an embodiment of the present invention from another angle. [Figure 8] FIG. 8 is a top view of the impeller of the fan according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] With reference to the following description and the accompanying drawings, embodiments of the present invention are disclosed in detail to clarify the manner in which the principles of the present invention may be employed. It is to be understood that the embodiments of the present invention are not limited thereto in scope. The embodiments of the present invention include many changes, modifications and equivalents within the spirit and scope of the appended claims.

[0010] In embodiments of the present invention, the term "and / or" includes any and all combinations of one or more of the associated stated terms. The terms "include", "comprise", and "comprises" refer to the presence of stated features, elements, components or parts, but do not exclude the presence or addition of one or more additional features, elements, components or parts.

[0011] In the embodiments of the present invention, the terms "a", "the", etc., which indicate a singular aspect, should be understood in a broad sense as "one type" or "class", including a plural aspect, but are not limited to the meaning of "one". The term "said" should be understood to include both a singular aspect and a plural aspect, unless otherwise specified in the preceding and following sentences. The term "based on" should be understood to mean "based at least in part on" unless otherwise specified in the preceding and following sentences, and the term "based on" should be understood to mean "based at least in part on" unless otherwise specified in the preceding and following sentences.

[0012] In the following description of the present invention, for convenience of explanation, the direction parallel to the direction extending along the central axis (e.g., central axis OO') of the fan motor will be referred to as the "axial direction," the radial direction centered on central axis OO' will be referred to as the "radial direction," and the direction around central axis OO' will be referred to as the "circumferential direction." It should be noted that this is for convenience of explanation only and does not limit the orientation of the fan during use and manufacturing.

[0013] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0014] (Example of the first aspect) An embodiment of the present invention provides a fan. Fig. 1 is a schematic view of a fan according to an embodiment of the present invention from one angle, Fig. 2 is a schematic view of the fan according to an embodiment of the present invention from another angle, and Fig. 3 is a schematic view of an axial section of the fan according to an embodiment of the present invention. As shown in Figs. 1 to 3, the fan includes a motor 10, an impeller 20, and a support part 30. The impeller 20 is disposed surrounding the motor 10, and the motor 10 drives the rotation of the impeller 20, and the support part 30 supports the motor 10 and the impeller 20.

[0015] Fig. 4 is a schematic diagram of the support part 30, and Fig. 5 is a top view of the support part 30 shown in Fig. 4, showing the support part 30 as viewed from one side in the axial direction (the upper side shown in Fig. 3). As shown in Figs. 4 and 5, the support part 30 includes a first support part 31 that supports the motor 10, an attachment part 32 that is disposed surrounding the first support part 31 and spaced from the first support part 31, and a connection part 33 that connects the first support part 31 and the attachment part 32.

[0016] In an embodiment of the present invention, as shown in Figures 3 and 4, the connection portion 33 is inclined from the first support portion 31 to the mounting portion 32. In other words, as shown in Figure 3, the plane A on which the first support portion 31 is located and the plane B on which the mounting portion 32 is located may not be the same plane, and the plane A and the plane B may be parallel, but the present invention is not limited to this.

[0017] In an embodiment of the present invention, as shown in Figures 4 and 5, the connection portion 33 has a protrusion 331 that protrudes toward one side approaching the impeller 20 (i.e., the axially upward side shown in Figure 3), and at least a portion of the protrusion 331 extends to the mounting portion 32; that is, like the protrusion 331, position C of the mounting portion 32 approaching the protrusion 331 also protrudes axially upward.

[0018] With this configuration, by providing the protrusion 331 at the connection portion 33 of the support portion 30, the number of paths for transmitting vibrations from the motor is increased, thereby reducing vibrations during fan rotation.

[0019] 4 and 5, the first support part 31 includes a plate part 311 and an outer peripheral part 312 arranged to surround the plate part 311, and the plate part 311 is closer to the motor 10 than the outer peripheral part 312, that is, the first support part 31 has a stepped design, and the middle part (plate part 311) is closer to the motor 10 than the surrounding part (outer peripheral part 312). This configuration can further reduce the vibration of the fan.

[0020] 4 and 5, in the embodiment of the present invention, the outer circumferential portion 312 has an extending convex portion 313 communicating with the protruding portion 331. That is, the protruding portion 331 extends radially outward to the mounting portion 32, and the protruding structure C may be formed by press molding, for example, pressing the support portion 30 to form the protruding portion 331, the extending convex portion 313 and the protruding structure C, while the other side of the support portion 30 forms a corresponding recess structure.

[0021] 4 and 5, plate portion 311 is provided with central shaft hole 314 and a plurality of through holes 315 surrounding central shaft hole 314, and although only through hole 315 is indicated by a single reference symbol in Fig. 4 and 5, the plurality of through holes 315 are arranged in a quadrilateral shape surrounding central shaft hole 314. With this configuration, by arranging through holes 315 in plate portion 311, the strength of support portion 30 can be improved.

[0022] In the embodiment of the present invention, the support portion 30 is integrally formed by pressing, which makes it possible to ensure the accuracy of size.

[0023] In the embodiment of the present invention, as shown in Fig. 4 and Fig. 5, the mounting portion 32 includes an annular portion 321 and a plurality of mounting holes 322 protruding radially outward from the annular portion 321, and each mounting hole 322 is provided with at least one through hole 323. The through hole 323 may be used to fix the fan to a machine, or may be used to position the fan. This configuration allows the fan to be securely fixed to the machine, and further reduces vibration of the fan. In Fig. 4 and Fig. 5, only the annular portion 321, the mounting holes 322, and the through hole 323 are indicated by a single reference numeral.

[0024] In the embodiment of the present invention, as shown in Fig. 3, the mounting portion 32 is closer to the impeller 20 in the axial direction than the first support portion 31. In other words, as shown in Fig. 3, the mounting portion 32 is located axially above the first support portion 31. This configuration can improve the stability of the support portion 30.

[0025] In the embodiment of the present invention, the number of connection parts 33 is not limited, and four connection parts 33 are shown in the examples of Figures 4 and 5, but in specific implementation, the number of connection parts 33 may be more than four or less than four, and for convenience of explanation, only one of the connection parts 33 is indicated by a symbol in Figures 4 and 5.

[0026] 5, in the embodiment of the present invention, the positions approaching the mounting portion 32 on both sides of the circumferential direction of each connecting portion 33 are formed into a chamfered structure D. This configuration can further improve the stability of the support portion 30.

[0027] In the embodiment of the present invention, the structure of the impeller 20 is not limited, and one embodiment of the impeller 20 will be described below with reference to Figs. 6 to 8 as an example.

[0028] FIG. 6 is a schematic view of impeller 20 from one angle, FIG. 7 is a schematic view of impeller 20 from another angle, and FIG. 8 is a top view of impeller 20, showing the impeller 20 as viewed from one side in the axial direction (the upper side in FIG. 3).

[0029] As shown in Figures 6 to 8, the impeller 20 includes a cup portion 21, a plurality of blades 22, an annular member 23, and an auxiliary blade 24, and for ease of explanation, only one blade 22 is shown by reference numeral in Figures 6 to 8.

[0030] In the embodiment of the present invention, the cup portion 21 is formed in a bottomed cylindrical shape centered on the central axis OO', and has a bottom portion 211 and a cylindrical portion 212. The blades 22 are located on the outer periphery of the cup portion 21. The annular member 23 connects one axial end (upper one end shown in FIG. 3) of the blades 22. The auxiliary blade 24 extends along the radial direction from a first axial position on the outer periphery surface of the cup portion 21, and when viewed along the axial direction, as shown in FIG. 8, the radially outermost end E of the auxiliary blade 24 does not overlap with the radially outermost end F of the blade 22 in the same radial direction, for example, in the radial direction D. This configuration can achieve a uniform cooling effect.

[0031] In some embodiments, the axial height of each vane 22 gradually increases from the radially inner side to the radially outer side. Here, "gradually increases" may be uniform or non-uniform, for example, the vane 22 is divided into several parts from the radially inner side to the radially outer side, and the axial height of the vane 22 on the radially outer side is greater than the axial height of the vane 22 on the radially inner side. As a result, the radially inner side of the vane 22 and the cup portion 21 form an air intake port, so that the axial height of the vane 22 on the radially inner side is small, and the amount of intake air is increased, thereby improving the cooling effect.

[0032] In some embodiments, as shown in Fig. 3, each vane 22 includes a first portion 22-1 having a height h1 in the first axial direction, a second portion 22-2 having a height h2 in the second axial direction, and a third portion 22-3 between the first portion 22-1 and the second portion 22-2, where the height h1 in the first axial direction is greater than the height h2 in the second axial direction, and when viewed along the axial direction, the radially outer end of the auxiliary vane 24 is located between the axial projections (dashed line segments oriented with arrows H) of the first portions 22-1, as shown in Fig. 8. This configuration can achieve a uniform cooling effect.

[0033] In some embodiments, as shown in Fig. 3, a surface S1 on one side (upper side shown in Fig. 3) in the axial direction of the second portion 22-2 is closer to the other side (lower side shown in Fig. 3) in the axial direction than a surface S2 on one side (upper side shown in Fig. 3) in the axial direction of the first portion 22-1, and a surface S3 on the other side (lower side shown in Fig. 3) in the axial direction of the second portion 22-2 is closer to one side (upper side shown in Fig. 3) in the axial direction than a surface S4 on the other side (lower side shown in Fig. 3) in the axial direction of the first portion 22-1. In other words, S1 is lower in the axial direction than S2, and S3 is higher in the axial direction than S4. With this configuration, the amount of air intake can be efficiently increased, thereby improving the amount of air exhausted from the motor.

[0034] In some embodiments, as shown in Fig. 3, the height h3 in the axial direction from the other side of the second portion 22-2 in the axial direction (the lower side shown in Fig. 3) to the support blade 24 is smaller than the height h4 in the axial direction from the support blade 24 to one side of the second portion 22-2 in the axial direction (the upper side shown in Fig. 3). With this configuration, the amount of air intake can be efficiently increased, thereby improving the amount of air exhausted from the motor.

[0035] In some embodiments, as shown in Figures 6 and 8, a plurality of first grooves 231 are provided on one axial side (the upper side shown in Figure 3) of the surface of the annular member 23. For ease of explanation, only the first grooves 231 are indicated by one reference numeral in Figures 6 and 8. With this configuration, a balance member can be disposed in the first grooves 231, and balance during rotation of the impeller 20 can be improved.

[0036] In some embodiments, as shown in Figures 6 and 8, a plurality of second grooves 213 are provided along the circumferential direction on the outer surface of the bottom 211 of the cup portion 21. For convenience of explanation, only the second grooves 213 are indicated by one reference numeral in Figures 6 and 8. With this configuration, a balance member can be disposed in the second grooves 213, and balance during rotation of the impeller 20 can be improved.

[0037] 7, in some embodiments, a plurality of axially extending ribs 214 are provided along the circumferential direction on the inner wall of the tubular portion 212 of the cup portion 21. With this configuration, the ribs 214 act as a guide, and other members of the fan (e.g., the magnetic stripe of the motor) can be easily pressed into the cup portion 21.

[0038] 7, in some embodiments, the axial end of the tubular portion 212 of the cup portion 21 is formed in a stepped structure X, that is, the axial end of the wall portion (tubular portion 212) of the cup portion 21 is formed in a thin structure. As a result, a recessed structure is also formed between the stepped structure X and the rib portion 214, and a balance member can be placed in the recessed structure, which can also improve the balance of the impeller 20 during rotation.

[0039] In some embodiments, as shown in Fig. 7, a plurality of protrusions 215 are provided on the inner edge of the bottom 211 of the cup portion 21, and the present invention does not limit the number of the protrusions 215, and the plurality of protrusions 215 may be arranged at equal intervals in the circumferential direction, thereby making it possible to maintain the balance of the motor. For convenience of explanation, only the protrusions 215 are shown by one reference numeral in Fig. 7. With this configuration, the rotor of the motor 10 can be positioned.

[0040] It should be noted that the above is merely an illustrative description of the embodiment of the present invention, the present invention is not limited thereto, and appropriate modifications can be made based on the above-mentioned embodiments. Also, each member is merely illustratively described, the present invention is not limited thereto, and the specific contents of each member can be referred to related art, and members not shown in Figures 1 to 8 can be added, or one or more members in Figures 1 to 8 can be removed.

[0041] In the fan according to the embodiment of the present invention, the protrusion is provided at the connection portion of the support, thereby increasing the path for transmitting vibration from the motor and reducing vibration during rotation of the fan.

[0042] (Example of the second aspect) The second embodiment of the present invention provides an electrical appliance including the fan according to the first embodiment. Since the structure of the fan has been described in detail in the first embodiment, the description thereof will be omitted here.

[0043] In an embodiment of the present invention, the electrical appliance may be any electrical appliance equipped with a fan, such as a home game console, or other electrical appliances equipped with a fan that have heat dissipation needs.

[0044] The present invention has been described above by combining specific embodiments. However, those skilled in the art should understand that the descriptions are merely illustrative and do not limit the scope of protection of the present invention. Those skilled in the art can make various modifications and alterations to the present invention based on the spirit and principle of the present invention, and these modifications and alterations are also within the scope of the present invention.

[0045] The above describes preferred embodiments of the present application with reference to the accompanying drawings. Based on the detailed specification, many features and advantages of these embodiments are clear, and the appended claims are intended to cover all features and advantages included in the true spirit and scope of these embodiments. In addition, since a person skilled in the art can think of many modifications and changes, the embodiments of the present invention are not limited to the exact structure and operation illustrated and described, but can include all appropriate modifications and equivalents included in the scope thereof. [Explanation of symbols]

[0046] 10 Motor 20 Impeller 30 Support part 31 First support 32 Mounting part 33 Connection

Claims

1. A motor; an impeller disposed around the motor and rotated by the motor; a support portion that supports the motor and the impeller; A fan including The support portion includes a first support portion that supports the motor; an attachment portion disposed around the first support portion and spaced apart from the first support portion; a connection portion that connects the first support portion and the mounting portion, The connection portion is provided at an incline from the first support portion to the mounting portion, and has a protruding portion protruding toward one side approaching the impeller, and at least a portion of the protruding portion extends to the mounting portion, The first support portion includes a plate portion and an outer circumferential portion disposed to surround the plate portion, A fan, wherein the plate portion is closer to a motor side than the outer circumferential portion in the axial direction, and the outer circumferential portion has an extending convex portion communicating with the protrusion.

2. 2. The fan according to claim 1, wherein the plate portion is provided with a central axial hole and a plurality of through holes surrounding the central axial hole, the plurality of through holes being arranged in a quadrilateral shape surrounding the central axial hole.

3. The fan according to claim 1 , wherein the support portion is integrally formed by pressing.

4. 4. The fan of claim 1, wherein the mounting portion comprises an annular portion and a plurality of mounting hole portions protruding radially outward from the annular portion, each of the mounting hole portions having at least one through hole.

5. The fan according to claim 1 , wherein the attachment portion is closer to the impeller in the axial direction than the first support portion is.

6. The fan according to claim 1 , wherein the connecting portion is a plurality of connecting portions, and each connecting portion has a chamfered structure at positions on both circumferential sides thereof approaching the mounting portion.

7. The impeller is a cup portion formed in a bottomed cylindrical shape centered on a central axis of the motor, the cup portion having a bottom and a cylindrical portion; A plurality of blades located on an outer periphery of the cup portion; an annular member connecting one ends of the plurality of blades in an axial direction; 2. The fan of claim 1, further comprising: an auxiliary blade extending radially from a first axial position on an outer peripheral surface of the cup portion and having a radially outermost end that does not overlap with a radially outermost end of the blade when viewed along the axial direction.

8. The fan according to claim 7 , wherein an axial height of each of the blades gradually increases from the radially inner side to the radially outer side.

9. 9. The fan of claim 8, wherein each of the blades includes a first portion having a height in a first axial direction, a second portion having a height in a second axial direction, and a third portion between the first portion and the second portion, the height in the first axial direction being greater than the height in the second axial direction, and a radially outer end of the auxiliary blade being located between axial projections of the first portions when viewed along the axial direction.

10. 10. The fan of claim 9, wherein a surface on one side of the second portion in the axial direction is closer to the other side in the axial direction than a surface on one side of the first portion, and a surface on the other side of the second portion in the axial direction is closer to one side in the axial direction than a surface on the other side of the first portion.

11. 10. The fan according to claim 9, wherein an axial height from the other axial side of the second portion to the auxiliary blade is smaller than an axial height from the auxiliary blade to one axial side of the second portion.

12. The fan according to claim 7 , wherein a plurality of first grooves are provided on one axial surface of the annular member.

13. The fan according to claim 7 , wherein an outer surface of the bottom portion is provided with a plurality of second grooves along a circumferential direction.

14. The fan according to claim 7 , wherein a plurality of axially extending ribs are provided on an inner wall of the cylindrical portion along a circumferential direction.

15. 8. The fan according to claim 7, wherein an axial end of the cylindrical portion is formed in a stepped structure.

16. The fan of claim 7 , wherein an inner edge of the bottom portion is provided with a plurality of protrusions.

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