Fan structure

Abstract

A fan structure comprises a bearing seat, at least one bearing, a limit ring, an oil absorption ring and a stator, the bearing, the oil absorption ring and the limit ring are arranged in the bearing seat, the oil absorption ring is arranged between the bearing and the limit ring, the stator is combined with the bearing seat and provided with an insulation frame and a coil assembly, the coil assembly is arranged on the insulation frame, and the coil assembly is arranged on the insulation frame. And the limiting part of the insulating frame is used for limiting the limiting ring, so that the limiting ring and the oil absorption ring are limited in the accommodating space.

Description

Technical Field

[0001] The present invention relates to a fan structure, and in particular to a fan structure that prevents lubricating oil in a bearing seat from being lost or overflowing from the bearing seat. Background Art

[0002] A known fan structure uses lubricating oil to lubricate a bearing disposed in a bearing seat to reduce friction between multiple rolling elements (such as balls or rollers, etc.), an inner ring and an outer ring in the bearing, thereby reducing bearing wear and extending its service life.

[0003] However, when the bearing of the fan structure is pivotally connected to a rotating shaft of a rotor and rotates, the lubricating oil will overflow from the bearing seat due to the negative pressure of the rotor's rotation, thereby causing the lubricating oil to be lost. When the lubricating oil is lost, it will cause the bearing and the rotating shaft to wear and generate noise, and relatively shorten the service life of the bearing. Utility Model Content

[0004] The main purpose of the present utility model is to provide a fan structure, in which an oil suction ring arranged between the bearing and the limiting ring absorbs the lubricating oil in the bearing seat, and the limiting ring is limited by the limiting part of the stator, so that the limiting ring and the oil suction ring are confined in the accommodating space of the bearing seat.

[0005] The present invention provides a fan structure, comprising a bearing seat, at least one bearing, a limiting ring, an oil suction ring and a stator, wherein the bearing seat has a accommodating space and a tube body, the accommodating space is located in the tube body, the bearing, the limiting ring and the oil suction ring are arranged in the accommodating space, the oil suction ring is located between the bearing and the limiting ring, the stator is combined with the bearing seat, the stator has an insulating frame and a coil group, the insulating frame has a main body, an extension part and a limiting part, the main body is located outside the tube body, the coil group is arranged in the main body to drive the rotor to rotate, the extension part is located between the main body and the limiting part, and the extension part is located above the tube body, the limiting part is located above the limiting ring to confine the limiting ring and the oil suction ring in the accommodating space.

[0006] In one embodiment of the present invention, the limiting ring abuts against the oil suction ring.

[0007] In one embodiment of the present invention, the limiting portion extends from the extending portion toward the limiting ring, and the limiting portion is located in the accommodating space, so that the tube body, the extending portion and the limiting ring form an inverted U-shaped oil return ring cavity.

[0008] In one embodiment of the present invention, the limiting portion abuts against the limiting ring.

[0009] In one embodiment of the present invention, the extension portion abuts against the top of the tube.

[0010] In one embodiment of the present invention, the outer edge of the limiting ring abuts against the inner wall of the tube.

[0011] In one embodiment of the present invention, the outer edge of the oil suction ring abuts against the inner wall of the tube body.

[0012] In one embodiment of the present invention, the material of the oil suction ring is selected from wool felt.

[0013] The invention absorbs the lubricating oil overflowing to the outside of the bearing seat due to the negative pressure of the rotor's rotation through the oil suction ring arranged between the bearing and the limiting ring, so that the lubricating oil is retained in the bearing seat to prevent the lubricating oil from being lost. The extension portion is located above the tube body, so that the lubricating oil flowing outward along the tube body is blocked by the extension portion and flows back into the accommodating space. The limiting portion restricts the limiting ring, so that the limiting ring and the oil suction ring are confined in the accommodating space to prevent the oil suction ring from detaching from the bearing seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an exploded view of the fan structure of the present invention;

[0015] Figure 2 It is a partial cross-sectional view of the fan structure of the present invention.

[0016] Reference numerals:

[0017] 100: Fan structure 110: Bearing seat

[0018] 111: Accommodation space 112: Tube body

[0019] 112a: top 112b: inner wall

[0020] 120: bearing 121: pivot hole

[0021] 130: limiting ring 131: outer edge

[0022] 132: Limiting hole 140: Oil suction ring

[0023] 141: Outer edge 142: Perforation

[0024] 150: stator 151: insulation frame

[0025] 151a: Main body 151b: Extension

[0026] 151c: Limiting portion 152: Coil assembly

[0027] 160: rotor 161: shaft

[0028] 162: fan wheel 163: fan blade

[0029] 170: Shell 180: Inverted U-shaped oil return ring cavity DETAILED DESCRIPTION

[0030] See also Figure 1 and Figure 2 A fan structure 100 includes a bearing seat 110, at least one bearing 120, a limiting ring 130, an oil suction ring 140 and a stator 150. The stator 150 is coupled to the bearing seat 110 to drive the rotor 160 to rotate. In this embodiment, the bearing seat 110 and the housing 170 are integrally formed, but not limited to this. The rotor 160 has a rotating shaft 161, a fan wheel 162 and a plurality of fan blades 163. The rotating shaft 161 and the fan blades 163 are coupled to the fan wheel 162, but not limited to this.

[0031] See also Figure 1 and Figure 2 The bearing seat 110 has an accommodating space 111 and a tube body 112. The accommodating space 111 is located in the tube body 112. The bearing 120, the oil suction ring 140 and the limiting ring 130 are sequentially arranged in the accommodating space 111. The oil suction ring 140 is located between the bearing 120 and the limiting ring 130. Preferably, the limiting ring 130 contacts the oil suction ring 140, and the oil suction ring 140 contacts the bearing 1 20. The limiting ring 130 can be selected from limiting parts such as Mylar gaskets, and the material of the oil-absorbing ring 140 is selected from oil-absorbing materials such as wool felt. The limiting ring 130 has an outer edge 131 and a limiting hole 132. The oil-absorbing ring 140 has an outer edge 141 and a through-hole 142. The limiting hole 132 and the through-hole 142 are aligned with the pivot hole 121 of the bearing 120 to facilitate the rotation of the rotating shaft 161 in the pivot hole 121.

[0032] See also Figure 1 and Figure 2 The stator 150 is combined with the bearing seat 110. The stator 150 has an insulating frame 151 and a coil group 152. The coil group 152 may include a coil and a silicon steel sheet, but is not limited thereto. The stator 150 is combined with the tube 112 by the insulating frame 151 and / or the coil group 152. The insulating frame 151 has a main body 151a, an extension portion 151b and a limiting portion 151c. The main body 151a is located outside the tube 112. The coil group 152 may include a coil and a silicon steel sheet, but is not limited thereto. The ring assembly 152 is disposed on the main body 151a to drive the rotor 160 to rotate. The extension portion 151b is located between the main body 151a and the limiting portion 151c. The extension portion 151b extends from the main body 151a toward the accommodating space 111. The extension portion 151b is located above the tube body 112. The limiting portion 151c is located above the limiting ring 130 to confine the limiting ring 130 and the oil suction ring 140 in the accommodating space 111.

[0033] See also Figure 1 and Figure 2 When the stator 150 drives the rotor 160 to rotate, the rotating shaft 161 synchronously drives the inner ring (not shown) and multiple rolling elements (not shown, such as balls or rollers) of the bearing 120 to rotate, and the bearing 120 is lubricated by the lubricating oil (not shown) set in the bearing seat 110.

[0034] See also Figure 1 and Figure 2 When the lubricating oil flows from the accommodating space 111 to the outside of the tube body 112 due to the negative pressure of the rotating rotor 160 and / or the rotating shaft 161, the lubricating oil flowing to the outside of the tube body 112 is absorbed by the oil suction ring 140 disposed between the bearing 120 and the limiting ring 130 and covering the bearing 120, so as to prevent the lubricating oil from overflowing from the accommodating space 111 and causing the lubricating oil to be lost. Preferably, the extension portion 151b contacts the A top portion 112a of the tube body 112 prevents the lubricating oil from overflowing out of the accommodating space 111 through the space between the extension portion 151b and the top portion 112a, and allows the lubricating oil attached to the extension portion 151b to flow back into the accommodating space 111. The limiting portion 151c limits the limiting ring 130, so that the limiting ring 130 and the oil suction ring 140 are confined in the accommodating space 111 to prevent the oil suction ring 140 from detaching from the bearing seat 110.

[0035] See also Figure 1 and Figure 2 Preferably, the limiting portion 151c extends from the extending portion 151b toward the limiting ring 130, and the limiting portion 151c is located in the accommodating space 111, so that the tube body 112, the extending portion 151b and the limiting ring 130 form an inverted U-shaped oil return ring cavity 180. More preferably, the limiting portion 151c abuts against the limiting ring 130, so that the lubricating oil attached to the inverted U-shaped oil return ring cavity 180 can flow back into the accommodating space 111.

[0036] See also Figure 1 and Figure 2 Preferably, the outer edge 141 of the oil suction ring 140 abuts against the inner wall 112b of the tube body 112. When the lubricating oil flows along the inner wall 112b to the outside of the tube body 112, the outer edge 141 abuts against the inner wall 112b to reduce or prevent the lubricating oil from flowing through the inner wall 112b to the outside of the tube body 112.

[0037] See also Figure 1 and Figure 2Preferably, the outer edge 131 of the limiting ring 130 abuts against the inner wall 112b of the tube body 112, and the negative pressure between the outer edge 131 and the inner wall 112b is reduced or avoided by the outer edge 131 abutting against the inner wall 112b, so that the lubricating oil cannot flow to the outside of the tube body 112 through the inner wall 112b.

[0038] In the present invention, the oil suction ring 140 disposed between the bearing 120 and the retaining ring 130 absorbs the lubricating oil flowing toward the outside of the bearing seat 110, thereby retaining the lubricating oil in the accommodating space 111. Furthermore, the extension portion 151b is located above the tube body 112, so that the lubricating oil flowing along the inner sidewall 112b is blocked by the extension portion 151b and flows back into the accommodating space 111 to prevent the lubricating oil from being lost. Furthermore, the retaining ring 130 is restrained by the retaining portion 151c, so that the retaining ring 130 and the oil suction ring 140 are confined in the accommodating space 111, thereby preventing the oil suction ring 140 from separating from the bearing seat 110.

[0039] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A fan structure, characterized in that: Include: The bearing seat comprises a receiving space and a tube body, wherein the receiving space is located in the tube body; At least one bearing is disposed in the accommodating space; A limiting ring is disposed in the accommodating space; an oil suction ring, disposed in the accommodating space, the oil suction ring being located between the bearing and the limiting ring; and The stator is combined with the bearing seat, and the stator has an insulating frame and a coil group. The insulating frame has a main body, an extension portion and a limit portion. The main body is located outside the tube body. The coil group is arranged on the main body to drive the rotor to rotate. The extension portion is located between the main body and the limit portion, and the extension portion is located above the tube body. The limit portion is located above the limit ring to confine the limit ring and the oil suction ring in the accommodating space.

2. The fan structure according to claim 1, wherein: The limiting ring abuts against the oil suction ring.

3. The fan structure according to claim 1, wherein: The limiting portion extends from the extending portion toward the limiting ring, and the limiting portion is located in the accommodating space, so that the tube body, the extending portion and the limiting ring form an inverted U-shaped oil return ring cavity.

4. The fan structure according to any one of claims 1 to 3, wherein: The limiting portion abuts against the limiting ring.

5. The fan structure according to any one of claims 1 to 3, characterized in that: The extension portion abuts against the top of the tube body.

6. The fan structure according to any one of claims 1 to 3, characterized in that: The outer edge of the limiting ring abuts against the inner side wall of the tube body.

7. The fan structure according to any one of claims 1 to 3, characterized in that: The outer edge of the oil suction ring abuts against the inner side wall of the tube body.

8. The fan structure according to claim 1, wherein: The material of the oil suction ring is selected from wool felt.

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