CN106151096B

CN106151096B - Fan shaft barrel combination structure

Info

Publication number: CN106151096B
Application number: CN201510189377.0A
Authority: CN
Inventors: 申猛
Original assignee: Asia Vital Components Co Ltd
Current assignee: Asia Vital Components Co Ltd
Priority date: 2015-04-17
Filing date: 2015-04-17
Publication date: 2019-12-27
Anticipated expiration: 2035-04-17
Also published as: CN106151096A

Abstract

A fan shaft cylinder combination structure comprises a shaft cylinder seat, a bottom plate and a connecting piece; the shaft cylinder seat is provided with an accommodating space, a receiving part and a shaft hole, the shaft hole is arranged at the top end of the shaft cylinder seat and communicated with the accommodating space, and the receiving part is arranged at the outer edge of the other end of the shaft hole of the shaft cylinder seat opposite to the shaft hole; the bottom plate is provided with an orifice, and the accepting part is arranged in the orifice; the connecting member connects the shaft cylinder base and the bottom plate by injection molding, so that the concentricity between the fan shaft cylinder and each element can be greatly increased and the assembly between the elements is stable.

Description

Fan shaft barrel combination structure

[ technical field ] A method for producing a semiconductor device

A fan shaft cylinder combining structure, especially a fan shaft cylinder combining structure capable of improving the combining sealing precision and the concentricity of a fan shaft cylinder and a fan frame.

[ background of the invention ]

The existing heat dissipation fan is mainly used for forcibly guiding airflow to dissipate heat for a part needing heat dissipation, and the heat dissipation fan mainly guides airflow by enabling a rotor to rotate after induction excitation is generated between the rotor and a stator.

The rotor in the heat dissipating fan is mainly composed of an axis and a fan wheel valley with a plurality of fan blades, the stator is arranged outside a shaft cylinder of a fan frame body and is arranged corresponding to the fan wheel valley, the general fan shaft cylinder is a structure body which is integrally formed by injection molding of the fan frame body, and the heat dissipating fan using a copper shaft cylinder is additionally riveted on a base of the fan frame body by a riveting mode, but the structure is easy to damage the structure of the fan due to the riveting process and easy to cause the defects of looseness and the like due to incomplete riveting; furthermore, since the copper shaft is pressed into the base of the fan frame by pressure during the riveting operation, the concentricity between the copper shaft and the base of the fan frame is difficult to control, and the riveting operation is prone to generate noise when loosening.

In addition, when the metal shaft tube and the metal fan frame are assembled, since both are made of hard materials, when the fan is operated, the vibration will cause the metal shaft tube and the metal fan frame to generate resonance and generate noise.

Therefore, it is the key point to solve the disadvantages of the known shaft tube and fan frame.

[ summary of the invention ]

To effectively solve the above problems, the main object of the present invention is to provide a fan shaft coupling structure for improving the assembling and sealing precision of a fan shaft.

Another object of the present invention is to provide a fan shaft coupling structure for improving the concentricity between the fan shaft and each fan element.

To achieve the above object, the present invention provides a fan shaft-barrel combination structure, which comprises a shaft-barrel seat, a bottom plate, and a connecting member, wherein the shaft-barrel seat has an accommodating space, a receiving portion and a shaft hole, the shaft hole is disposed at the top end of the shaft-barrel seat and is communicated with the accommodating space, and the receiving portion is disposed at the outer edge of the other end of the shaft hole of the shaft-barrel seat opposite to the shaft hole; the bottom plate has an opening, and the receiving portion of the shaft seat is disposed in the opening of the bottom plate; the connecting piece is arranged between the opening of the bottom plate and the receiving part of the shaft cylinder seat through injection molding to connect the opening and the receiving part, so that the shaft cylinder seat and the bottom plate can be tightly combined, and the problems of vibration, noise and the like generated between the shaft cylinder and the bottom plate can be further eliminated.

The containing space of the shaft cylinder seat is further provided with a retaining ring, a bearing and a wear-resistant sheet, the retaining ring, the bearing and the wear-resistant sheet are arranged in the containing space from top to bottom in sequence, the retaining ring is provided with a through hole, the bearing is provided with an axial through hole, and the through hole and the axial through hole are communicated with the shaft hole.

The other end of the shaft cylinder seat opposite to the shaft hole is provided with an open end, and the connecting piece simultaneously closes the open end.

The receiving part of the shaft cylinder seat is provided with a groove, a first ring body and a second ring body, and the first ring body and the second ring body are annularly arranged outside the shaft cylinder seat and jointly define the groove.

The rotor assembly further includes a rotor assembly having a shaft and a fan body, the shaft has a first end and a second end, the shaft is provided with a slot portion near the first end, the fan body is connected to the first end of the shaft, the second end of the shaft is inserted through the through hole and the axial through hole, and is pivoted to the shaft hole and the bearing, and the second end abuts against the wear-resistant plate.

The combination structure of the fan shaft tube of the invention can greatly improve the concentricity between the shaft tube and other fan components and the close precision of assembly, and can freely select materials such as shock-absorbing material rubber or plastic through a connecting piece which is formed between the shaft tube seat and the bottom plate by injection molding and is used for connecting the shaft tube seat and the bottom plate, thereby reducing the resonance or noise between the shaft tube seat and the bottom plate caused by the operation of the fan.

[ description of the drawings ]

FIG. 1 is an exploded perspective view of a fan shaft coupling structure according to a first embodiment of the present invention;

FIG. 2 is an exploded cross-sectional view of a fan bobbin coupling structure according to a first embodiment of the present invention;

FIG. 3 is an assembled cross-sectional view of a first embodiment of a fan shaft coupling structure of the present invention;

FIG. 4 is an assembled cross-sectional view of a second embodiment of the fan bobbin coupling structure of the present invention;

FIG. 5 is an assembled cross-sectional view of a third embodiment of the fan bobbin coupling structure of the present invention;

FIG. 6 is an assembled cross-sectional view of a fourth embodiment of the fan barrel coupling structure of the present invention.

The elements represented by the various numbers in the drawings are:

fan shaft barrel combination structure 1

Shaft barrel seat 11

Accommodating space 111

Receiving part 112

Recess 1121

First ring body 1122

Second ring 1123

Shaft hole 113

Base plate 12

Aperture 121

Connecting piece 13

Retaining ring 14

Perforation 141

Bearing 15

Axial through hole 151

Wear plate 16

Rotor assembly 17

Axial center 171

Fan blade body 172

First end 1711

Second end 1712

Groove 1713

Stator assembly 18

Silicon steel sheet 181

Coil 182

[ detailed description ] embodiments

The above objects of the present invention, together with the structural and functional features thereof, are best understood from the following description of the preferred embodiments when read in connection with the accompanying drawings.

Referring to fig. 1, 2 and 3, which are three-dimensional exploded, exploded sectional view and assembled sectional view of a first embodiment of a fan shaft cylinder combination structure of the present invention, as shown in the figure, the fan shaft cylinder combination structure 1 includes a shaft cylinder base 11, a bottom plate 12 and a connecting piece 13;

the shaft cylinder seat 11 has an accommodating space 111, a receiving portion 112 and a shaft hole 113, the shaft hole 113 is disposed at the top end of the shaft cylinder seat 11, the shaft hole 113 is communicated with the accommodating space 111, the receiving portion 112 is disposed at the outer edge of the shaft hole 113 of the shaft cylinder seat 11, the receiving portion 112 has a groove 1121, a first ring body 1122 and a second ring body 1123, and the first and second ring bodies 1122 and 1123 are annularly disposed outside the shaft cylinder seat 11 and jointly define the groove 1121.

The bottom plate 12 has an opening 121, and the receiving portion 112 of the shaft holder 11 is disposed in the opening 121 of the bottom plate 12, and the bottom plate 12 may be made of any one of polymer material and metal material.

The connecting member 13 is disposed between the opening 121 of the bottom plate 12 and the receiving portion 112 of the shaft seat 11 by injection molding to connect the two, the other end of the shaft seat 11 opposite to the shaft hole 113 has an open end 114, and the connecting member 13 also closes the open end 114.

The connecting member 13 is a structure formed by injection molding, and is mainly formed by placing the shaft tube base 11 and the bottom plate 12 into a mold (not shown), injecting a semi-molten material (plastic or metal material) between the two through injection molding, and cooling and solidifying the semi-molten material injected into the mold (i.e. injecting) to form the connecting member 13 to combine and fix the shaft tube base 11 and the bottom plate 12.

Please refer to fig. 4, which is a combined cross-sectional view of a second embodiment of the fan shaft tube combination structure of the present invention, as shown in the figure, part of the technical features of the present embodiment are the same as those of the first embodiment, and therefore will not be described herein, but the difference between the present embodiment and the first embodiment is that the accommodating space 111 of the shaft tube seat 11 further includes a retaining ring 14, a bearing 15 and a wear-resistant plate 16, and the retaining ring 14, the bearing 15 and the wear-resistant plate 16 are arranged in order from top to bottom in the accommodating space 111.

The retaining ring 14 has a through hole 141, the bearing 15 has an axial through hole 151, and the through hole 141 and the axial through hole 151 are communicated with the shaft hole 113.

In this embodiment, the retaining ring 14, the bearing 15 and the wear-resistant plate 16 are placed into the accommodating space 111 of the shaft cylinder seat 11, and then placed into a mold (not shown) together with the bottom plate 12, and then a semi-molten material (plastic or metal material) is injected between the retaining ring and the bottom plate by injection molding, after the semi-molten material injected into the mold is cooled and solidified, the connecting member 13 is formed to combine and fix the shaft cylinder seat 11 and the bottom plate 12.

Please refer to fig. 5, which is a combined cross-sectional view of a third embodiment of the fan shaft barrel combination structure of the present invention and refer to fig. 4 again, as shown, part of technical features of this embodiment are the same as those of the second embodiment, and therefore will not be described herein, but the present embodiment differs from the first embodiment by further comprising a rotor assembly 17, the rotor assembly 17 has a shaft 171 and a fan blade body 172, the shaft 171 has a first end 1711 and a second end 1712, the shaft 17 is provided with a slot 1713 near the first end 1711, the fan blade body 172 is connected to the first end 1711 of the shaft 171, the second end 1712 of the shaft 171 is provided with the through hole 141 and the axial through hole 151, and the shaft hole 113 is pivoted to the bearing 15, the second end 1712 abuts against the wear-resistant plate 16, the fan blade body 172 has a wheel valley 1721 and a plurality of fan blades 1722, the blades 1722 are annularly arranged outside the wheel valley 1721, the groove 1713 of the shaft 171 is disposed corresponding to the through hole 141 of the retaining ring 14.

Please refer to fig. 6, which is a combined cross-sectional view of a fourth embodiment of a fan shaft tube combination structure of the present invention, wherein the technical features of the present embodiment are the same as those of the third embodiment, and therefore will not be described herein, but the present embodiment is different from the third embodiment and further comprises a stator assembly 18, wherein the stator assembly 18 comprises a plurality of silicon steel sheets 181, the silicon steel sheets 181 are stacked with each other, a plurality of coils 182 are wound around the silicon steel sheets 181, and the stator assembly 18 is sleeved outside the shaft tube base 11 and is disposed corresponding to the rotor assembly 17.

The present invention mainly provides a solution to the disadvantage of the known fan shaft and fan base that are riveted together when both are made of metal, and because the structural member connecting member produced by the injection molding of the present invention can be made of any shock-absorbing or elastic material, it can be tightly combined, further eliminating the problems of vibration and noise between the shaft and the base.

Claims

1. A fan shaft cylinder combination structure is characterized by comprising: the connecting piece is arranged at the outer edge of the other end of the shaft hole of the shaft cylinder seat opposite to the receiving part, the receiving part is provided with a groove, a first ring body and a second ring body, and the first ring body and the second ring body are annularly arranged outside the shaft cylinder seat and jointly define the groove; the bottom plate has an opening, and the receiving portion of the shaft seat is disposed in the opening of the bottom plate; the connecting piece is arranged between the orifice of the bottom plate and the receiving part of the shaft cylinder seat through injection molding and is used for connecting the bottom plate and the shaft cylinder seat only through the connecting piece, and the connecting piece is made of shock-absorbing materials, so that the shaft cylinder seat and the bottom plate can be tightly combined, and the problems of vibration and noise generated between the shaft cylinder seat and the bottom plate can be further solved.

2. The fan barrel combination structure as claimed in claim 1, wherein the receiving space of the barrel seat further has a retaining ring, a bearing and a wear-resistant plate, and the retaining ring, the bearing and the wear-resistant plate are sequentially arranged in the receiving space from top to bottom, the retaining ring has a through hole, the bearing has an axial through hole, and the through hole and the axial through hole are communicated with the shaft hole.

3. The fan bobbin coupling structure according to claim 1, wherein the other end of the bobbin base opposite to the shaft hole has an open end, and the connecting member closes the open end at the same time.

4. The fan barrel combination structure of claim 2 further comprising a rotor assembly, said rotor assembly having a shaft, a fan body, said shaft having a first end and a second end, said shaft having a slot portion near said first end, said fan body being connected to said first end of said shaft, said second end of said shaft passing through said through hole and said axial through hole and said shaft hole and said bearing, said second end abutting against said wear pad.