A heat dissipation fan anti-sling oil device

Abstract

The utility model relates to a heat dissipation fan technical field discloses a heat dissipation fan anti -throwing oil device, including setting at the outer anti -throwing oil subassembly of central shaft, the outer wall of central shaft has the fan blade through the nut fixed connection, the bottom of central shaft is fixedly connected with the output of drive motor, central shaft is provided with the support bearing at drive motor junction, drive motor fixed mounting is in the fan shell, the anti -throwing oil subassembly includes lower cover, upper cover, the upper cover sliding sleeve sets up on the central shaft, the lower cover fixedly sets up in the outside of support bearing, the top of upper cover is connected with the oil inlet pipe, when the lubricating oil is thrown away by support bearing, will first throw into the upper cover, and quite a part will be intercepted by oil guide slope no.

Description

Technical Field

[0001] This utility model relates to the field of cooling fan technology, specifically to a cooling fan anti-oil-slinging device. Background Technology

[0002] Most cooling fans require lubricating oil to be added to the bearing connecting the central fan blade shaft and the housing after a period of use. There are two common methods for lubricating the bearing. One method is to use oiling holes on the back and front of the cooling fan, which are usually covered by dust stickers. To add lubricating oil, simply peel off the dust stickers and apply the oil to the holes. The other method is to remove the fan blades to expose the bearings and then drip the lubricating oil directly onto them. However, neither method has an anti-oil-slinging structure. After the lubricating oil is dripped on, it is easily slinged out by centrifugal force. Utility Model Content

[0003] The purpose of this invention is to provide a cooling fan anti-oil-slinging device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a cooling fan anti-oil-slinging device, comprising an anti-oil-slinging component disposed outside a central shaft, wherein fan blades are fixedly connected to the outer wall of the central shaft by a nut, the bottom end of the central shaft is fixedly connected to the output end of a drive motor, a support bearing is provided at the connection between the central shaft and the drive motor, and the drive motor is fixedly installed inside the fan housing; The anti-oil-throwing assembly includes a lower cover and an upper cover. The upper cover is slidably sleeved on the central shaft, and the lower cover is fixedly sleeved on the outside of the support bearing. The top of the upper cover is connected to an oil inlet pipe, and the top end of the oil inlet pipe is fixedly connected to the fan blades. The inner wall of the top port of the lower cover is provided with an oil guiding slope one, and the inner wall of the bottom port of the upper cover is provided with an oil guiding slope two. The oil guiding slope two is disposed inside and outside the oil guiding slope one, and the oil guiding slope two is located inside the oil guiding slope one.

[0005] Furthermore, a gap is left between the second oil guiding slope and the first oil guiding slope, and the lowest point of the second oil guiding slope is higher than the highest point of the supporting bearing.

[0006] Furthermore, the top end of the oil inlet pipe is fixedly connected to the hidden groove at the top of the fan blade. There are two oil inlet pipes, and the two oil inlet pipes are symmetrically arranged about the central axis of the central axis.

[0007] Furthermore, the top of the oil inlet pipe is covered with a dust cover, which is inserted into a hidden groove.

[0008] Furthermore, the inner wall of the dust cover is fixedly provided with an edge plug and a center plug. The center plug is inserted into the top port of the oil inlet pipe, and the edge plug is sleeved on the top outer wall of the oil inlet pipe.

[0009] Furthermore, the top of the dust cover is flush with the top of the fan blades, and a groove is provided at the top edge of the dust cover.

[0010] Furthermore, an enlarged channel is provided at the connection between the oil inlet pipe and the upper cover, and a flap-type rubber plug is fixedly installed on the inner wall of the enlarged channel.

[0011] Furthermore, a central hole is provided at the center of the flap-shaped rubber plug, and the inner diameter of the central hole is smaller than the inner diameter of the oil inlet pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are: The lower cover and the upper cover together cover the side of the support bearing that is outside the drive motor. Lubricating oil is added to the upper cover through the oil inlet pipe and then drips from the upper cover onto the support bearing. Because the oil inlet pipe is connected to the fan blades, the upper cover rotates together with the support bearing and the fan blades, which can splash the lubricating oil in the upper cover onto the support bearing. When the lubricating oil is thrown away by the support bearing, it will first be thrown into the upper cover, and a considerable portion of it will be intercepted by the second oil guide slope. Even if some lubricating oil is thrown onto the first oil guide slope, it will also be intercepted by the first oil guide slope, thus achieving a double anti-spill function. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 Exploded view of the structure; Figure 3 This is a structural schematic diagram of the front sectional view of the fan blades, drive motor, support bearing, central shaft, and anti-oil-slinging assembly of this utility model; Figure 4 This utility model Figure 3 A schematic diagram of the structure of the enlarged view at point A in the middle; Figure 5 This utility model Figure 3 A structural schematic diagram of the enlarged view at point B in the middle; Figure 6 This is a structural schematic diagram of the front sectional view of the anti-oil-slinging component of this utility model; Figure 7 This is a schematic diagram of the structure of the flap-type rubber stopper of this utility model; Figure 8 This is a structural schematic diagram of the exploded view of the dust cover, edge plug, and center plug of this utility model.

[0014] In the diagram: 1. Fan housing; 2. Fan blades; 3. Drive motor; 4. Support bearing; 5. Central shaft; 6. Anti-oil-throwing assembly; 601. Lower cover; 602. Upper cover; 603. Oil inlet pipe; 604. Oil guide slope one; 605. Oil guide slope two; 7. Enlarged channel; 8. Flap-type rubber plug; 801. Central hole; 9. Hidden groove; 10. Dust cover; 11. Edge plug; 12. Central plug; 13. Groove. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Please see Figures 1-8 This utility model provides a technical solution: a cooling fan anti-oil-slinging device, including an anti-oil-slinging component 6 set outside the central shaft 5, a fan blade 2 fixedly connected to the outer wall of the central shaft 5 by a nut, the bottom end of the central shaft 5 fixedly connected to the output end of the drive motor 3, a support bearing 4 set at the connection between the central shaft 5 and the drive motor 3, and the drive motor 3 fixedly installed inside the fan housing 1; The anti-oil-throw assembly 6 includes a lower cover 601 and an upper cover 602. The upper cover 602 is slidably sleeved on the central shaft 5, and the lower cover 601 is fixedly sleeved on the outside of the support bearing 4. The top of the upper cover 602 is connected to an oil inlet pipe 603, and the top end of the oil inlet pipe 603 is fixedly connected to the fan blade 2. The inner wall of the top port of the lower cover 601 is provided with an oil guiding slope 604, and the inner wall of the bottom port of the upper cover 602 is provided with an oil guiding slope 605. The oil guiding slope 605 is arranged inside and outside the oil guiding slope 604, and the oil guiding slope 605 is located inside the oil guiding slope 604. The lower cover 601 and the upper cover 602 together form a sleeve that holds the support bearing 4. On the side outside the super-drive motor 3, lubricating oil is added to the upper cover 602 through the oil inlet pipe 603, and then drips from the upper cover 602 onto the support bearing 4. Since the oil inlet pipe 603 is connected to the fan blade 2, the upper cover 602 rotates together with the support bearing 4 and the fan blade 2, which can throw the lubricating oil in the upper cover 602 onto the support bearing 4. When the lubricating oil is thrown away by the support bearing 4, it will first be thrown into the upper cover 602, and a considerable portion will be intercepted by the second oil guide slope 605. Even if some lubricating oil is thrown onto the first oil guide slope 604, it will also be intercepted by the first oil guide slope 604, thus achieving a double anti-spill function. There is a gap between the second oil guide slope 605 and the first oil guide slope 604. The lowest point of the second oil guide slope 605 is higher than the highest point of the support bearing 4, which can prevent the second oil guide slope 605 and the first oil guide slope 604 from rubbing against each other. The top end of the oil inlet pipe 603 is fixedly connected to the hidden groove 9 at the top of the fan blade 2. There are two oil inlet pipes 603, and the two oil inlet pipes 603 are symmetrically arranged about the central axis of the central shaft 5. The symmetrical arrangement can reduce the impact on the rotation of the fan blade 2. The top of the oil inlet pipe 603 is covered with a dust cover 10, which is inserted into the hidden groove 9. The dust cover 10 covers the top of the oil inlet pipe 603 to prevent lubricating oil from flowing out of the oil inlet pipe 603. The inner wall of the dust cover 10 is fixedly provided with an edge plug 11 and a center plug 12. The center plug 12 is inserted into the top port of the oil inlet pipe 603, and the edge plug 11 is sleeved on the top outer wall of the oil inlet pipe 603. The center plug 12 is provided to further block the top of the oil inlet pipe 603, and the edge plug 11 can increase the friction force on the top of the oil inlet pipe 603, further increasing the anti-fall-off structure of the dust cover 10. The top of the dust cover 10 is flush with the top of the fan blade 2. A groove 13 is provided at the top edge of the dust cover 10. The groove 13 makes it convenient for users to clamp the dust cover 10 with tools such as tweezers. An enlarged channel 7 is provided at the connection between the oil inlet pipe 603 and the upper cover 602. A flap-type rubber plug 8 is fixedly provided on the inner wall of the enlarged channel 7. The flap-type rubber plug 8 is provided as an anti-flow structure to prevent the lubricating oil from being thrown back into the oil inlet pipe 603 and then thrown out from the top of the oil inlet pipe 603. A central hole 801 is provided at the center of the flap rubber plug 8. The inner diameter of the central hole 801 is smaller than the inner diameter of the oil inlet pipe 603. The central hole 801 is provided to increase the oil flow channel of the flap rubber plug 8 and ensure that the lubricating oil can flow through the flap rubber plug 8.

[0017] Working principle: During use, lubricating oil is added to the oil inlet pipe 603 from the top. The lubricating oil flows along the inside of the oil inlet pipe 603 to the flap rubber plug 8, then flows through the center hole 801 into the upper cover 602, and then drips onto the support bearing 4. The dust cover 10 is placed over the top of the oil inlet pipe 603, and the center plug 12 is inserted into the oil inlet pipe 603. During the insertion of the center plug 12, the air in the oil inlet pipe 603 is squeezed towards the flap rubber plug 8, causing the lubricating oil remaining at the flap rubber plug 8 to also be squeezed through the flap rubber plug 8. The lubricating oil is then driven by the motor 3. When the central shaft 5 is started and rotated, the central shaft 5 drives the fan blades 2 to rotate. At this time, the fan blades 2 drive the oil inlet pipe 603 to rotate, which in turn drives the upper cover 602 to rotate. The rotating upper cover 602 can throw the lubricating oil remaining on the inner wall of the upper cover 602 onto the support bearing 4. When the lubricating oil is thrown away by the support bearing 4, it will first be thrown into the upper cover 602, and a considerable portion will be intercepted by the second oil guide slope 605. Even if some lubricating oil is thrown onto the first oil guide slope 604, it will also be intercepted by the first oil guide slope 604, thus achieving a double anti-oil-throwing effect.

[0018] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A cooling fan oil-slinging prevention device, characterized in that: It includes an anti-oil-slinging assembly (6) set outside the central shaft (5), the outer wall of the central shaft (5) is fixedly connected to a fan blade (2) by a nut, the bottom end of the central shaft (5) is fixedly connected to the output end of the drive motor (3), a support bearing (4) is provided at the connection between the central shaft (5) and the drive motor (3), and the drive motor (3) is fixedly installed inside the fan housing (1); The anti-oil-throwing assembly (6) includes a lower cover (601) and an upper cover (602). The upper cover (602) is slidably sleeved on the central shaft (5). The lower cover (601) is fixedly sleeved on the outside of the support bearing (4). The top of the upper cover (602) is connected to an oil inlet pipe (603). The top end of the oil inlet pipe (603) is fixedly connected to the fan blade (2). The inner wall of the top port of the lower cover (601) is provided with an oil guide slope one (604). The inner wall of the bottom port of the upper cover (602) is provided with an oil guide slope two (605). The oil guide slope two (605) is disposed inside and outside the oil guide slope one (604), and the oil guide slope two (605) is located inside the oil guide slope one (604).

2. The anti-oil-slinging device for a cooling fan according to claim 1, characterized in that: There is a gap between the second oil guide slope (605) and the first oil guide slope (604), and the lowest point of the second oil guide slope (605) is higher than the highest point of the support bearing (4).

3. The anti-oil-slinging device for a cooling fan according to claim 2, characterized in that: The top end of the oil inlet pipe (603) is fixedly connected to the hidden groove (9) at the top of the fan blade (2). There are two oil inlet pipes (603), and the two oil inlet pipes (603) are symmetrically arranged about the central axis (5).

4. The anti-oil-slinging device for a cooling fan according to claim 3, characterized in that: The top of the oil inlet pipe (603) is covered with a dust cover (10), which is inserted into the hidden groove (9).

5. The anti-oil-slinging device for a cooling fan according to claim 4, characterized in that: The inner wall of the dust cover (10) is fixedly provided with an edge plug (11) and a center plug (12). The center plug (12) is inserted into the top port of the oil inlet pipe (603), and the edge plug (11) is sleeved on the top outer wall of the oil inlet pipe (603).

6. The anti-oil-slinging device for a cooling fan according to claim 5, characterized in that: The top of the dust cover (10) is flush with the top of the fan blade (2), and a groove (13) is provided at the top edge of the dust cover (10).

7. The anti-oil-slinging device for a cooling fan according to claim 1, characterized in that: An enlarged channel (7) is provided at the connection between the oil inlet pipe (603) and the upper cover (602), and a flap-type rubber plug (8) is fixedly provided on the inner wall of the enlarged channel (7).

8. The anti-oil-slinging device for a cooling fan according to claim 7, characterized in that: The center hole (801) is provided at the center of the flap rubber plug (8), and the inner diameter of the center hole (801) is smaller than the inner diameter of the oil inlet pipe (603).

Images