Fan with oil spill prevention structure

Abstract

The utility model relates to the technical field of electric appliance design, in particular to a fan with an oil spill prevention structure, which is technically characterized by comprising a fan body, a driving part and a fan blade component, the driving part is positioned on the inner side of the fan body and positioned on the inner side of the fan blade component, and the fan blade component is positioned on the inner side of the fan body. The fan blade assembly is driven by a driving part to rotate in the fan body, the fan body comprises a fixing base and an annular shell, the annular shell is located above the fixing base, the driving part comprises a shaft center, the shaft center is fixed to the fixing base, and the shaft center is located above the annular shell. An oil-proof ring is arranged at the end, away from the fixing base, of the axis, and the inner wall of the oil-proof ring abuts against the axis. Through the arrangement of the oil-proof ring, when the fan is powered on and the fan blades operate, lubricating oil in the bearing moves upwards into the oil storage bin through the axis under the action of centrifugal force, and when the fan stops working, the lubricating oil flows back to the bottom of the axis, so that the service life of the fan is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric appliance design, concretely relates to a fan with oil spill prevention structure. BACKGROUND

[0002] Fan, also known as electric fan, fan, is a kind of household appliance using motor-driven fan blade rotation, makes air accelerated flow. It is mainly used for cooling and air circulation, in hot summer can quickly reduce indoor temperature, bring comfortable environment for people.

[0003] The existing fan shaft is directly supported in the fan blade, after the fan is powered on, the bearing internal lubricating oil is moved to the bearing seat storage by the shaft due to the centrifugal force and is thrown to the fan blade outside, long-term use, lubricating oil loss, seriously affect the service life of fan;And, lubricating oil high-temperature oxidation blackening yellow, can be seen through transparent fan, affect the aesthetic appearance of transparent fan. UTILITY MODEL CONTENT

[0004] Therefore, the purpose of the present application is to solve the technical problem that the lubricating oil is moved to the bearing seat storage by the shaft due to the centrifugal effect when the fan is running, the lubricating oil is lost after long-term use, and the service life of the fan is seriously affected.

[0005] The above technical purpose of the utility model is realized by the following technical scheme:

[0006] A fan with oil spill prevention structure, including fan body, drive part and fan blade assembly, the drive part is located in the inside of the fan body, and is located in the inside of the fan blade assembly, the fan blade assembly is arranged to rotate in the inside of the fan body by the driving of the drive part, the fan body includes fixed seat and annular shell, the annular shell is located above the fixed seat, the drive part includes shaft, the shaft is fixed on the fixed seat, an end of the shaft away from the fixed seat is provided with an oil-proof ring, the inner wall of the oil-proof ring is arranged in abutment with the shaft.

[0007] Preferably, the inner wall of the oil-proof ring is in interference fit with the outer wall of the shaft.

[0008] Preferably, the outer wall of the oil-proof ring extends to form an extension on both sides, the inner side of the extension is arranged to be inclined, and the directions of the extensions on the upper side and the lower side are opposite, wherein the upper side of the extension points upward.

[0009] Preferably, the oil-proof ring is a black opaque oil-proof ring.

[0010] Preferably, the driving member further includes a stator and a rotor, the stator is arranged around the outer periphery of the axis, the rotor is arranged around the outer periphery of the stator, and the rotor and the fan blade assembly are arranged to rotate synchronously.

[0011] Preferably, an oil storage tank is formed between the lower side of the oil-proof ring, the inner side of the extension portion and the top of the stator.

[0012] Preferably, the fan blade assembly includes a middle fixed part and outer fan blades, the fixed part is sleeved on the outer periphery of the rotor and rotates synchronously with the rotor, the fan blades are arranged around the fixed part, and the fan blades and the fixed part rotate synchronously.

[0013] Preferably, the fixing portion is arranged in a circular ring shape, a cover plate is provided at one end of the fixing portion away from the fixing seat, the cover plate and the fixing portion are integrally formed, and an axle seat is provided at one end of the cover plate pointing to the fixing seat, and the axle seat is used to support the axis.

[0014] Preferably, a clearance groove is provided on the shaft seat, and the clearance groove and the upper extension portion are arranged to cooperate with each other.

[0015] Preferably, the circumferential array of fan blades is arranged between the circular shell and the fixing portion, and the fan blades are fixed on the fixing portion.

[0016] Compared with the prior art, this application has the following beneficial effects:

[0017] Through the setting of the oil-proof ring, when the fan is powered on and the blades are running, the lubricating oil inside the bearing moves up through the axis to the oil storage tank due to the action of centrifugal force. When the fan stops working, the lubricating oil flows back to the bottom of the axis due to the principle of thermal expansion and contraction, thereby extending the service life of the fan. In addition, the black opaque oil-proof ring ensures that the interior cannot be seen through the transparent fan blades during use, which increases the aesthetics of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an overall schematic diagram of a fan with an anti-oil spill structure in one embodiment of the present invention;

[0019] Figure 2 It is a cross-sectional schematic diagram of a fan with an anti-oil overflow structure in one embodiment of the present invention.

[0020] In the figure, 1. fan body; 11. fixing seat; 12. annular shell; 2. driving part; 21. axis; 211. oil-proof ring; 212. extension part; 2111. oil storage tank; 22. stator; 23. rotor; 3. fan blade assembly; 31. fixing part; 311. cover plate; 312. shaft seat; 3121. clearance groove; 32. fan blade. DETAILED DESCRIPTION

[0021] The utility model will be further explained in detail in connection with the drawings and examples.

[0022] Please refer to Figure 1 and Figure 2 An anti-overflow oil structure fan, comprising a fan body 1, a driving member 2 and a fan blade assembly 3, the driving member 2 is located inside the fan body 1 and inside the fan blade assembly 3, and the fan blade assembly 3 is rotatably arranged inside the fan body 1 by the driving of the driving member 2.

[0023] Please refer to Figure 1 and Figure 2 In an embodiment, the fan body 1 comprises a fixed seat 11 and an annular shell 12, the fixed seat 11 is arranged in a long strip shape, the annular shell 12 is located above the fixed seat 11, the fixed seat 11 is circular at the middle position, and the fixed seat 11 is used for fixing the driving member 2.

[0024] Please refer to Figure 2 In an embodiment, the driving member 2 comprises a shaft 21, a stator 22 and a rotor 23, the shaft 21 is fixed on the fixed seat 11, the stator 22 is arranged around the outer periphery of the shaft 21, the rotor 23 is arranged around the outer periphery of the stator 22, and the rotor 23 is rotatably arranged synchronously with the fan blade assembly 3.

[0025] An oil-proof ring 211 is arranged at one end of the shaft 21 away from the fixed seat 11, and the inner wall of the oil-proof ring 211 is arranged in abutment with the shaft 21, and in an embodiment, the inner wall of the oil-proof ring 211 is in interference fit with the outer wall of the shaft 21 to prevent lubricating oil from overflowing through the gap between the oil-proof ring 211 and the shaft 21.

[0026] The outer wall of the oil-proof ring 211 extends to form an extension 212 on both sides, the inner side of the extension 212 is arranged in an inclined manner, and the directions indicated by the extension 212 on the upper side and the lower side are opposite, and the extension 212 on the upper side points upward.

[0027] In an embodiment, the oil-proof ring 211 is a black opaque oil-proof ring 211, and an oil storage compartment 2111 is formed between the lower side of the oil-proof ring 211, the inner side of the extension 212 and the top of the stator 22, when the fan is powered on and operates, the lubricating oil at the bottom of the shaft 21 moves upward into the oil storage compartment 2111 due to the centrifugal force, and when the fan stops working, the lubricating oil flows back to the bottom of the shaft 21.

[0028] The fan blade assembly 3 comprises a middle fixed part 31 and outer fan blades 32. The fixed part 31 is arranged in a circular ring shape, is sleeved on the outer periphery of the rotor 23, is arranged to rotate synchronously with the rotor 23, is provided with a cover plate 311 at one end away from the fixed base 11, is integrally formed with the fixed part 31, is provided with a shaft seat 312 at one end pointing to the fixed base 11, is used for abutting the shaft 21, is provided with a displacement slot 3121 on the shaft seat 312, and is arranged to cooperate with the upper extension part 212. The fan blades 32 are arranged around the fixed part 31, are arranged to rotate synchronously with the fixed part 31, in an embodiment, are arranged in a circumferential array between the circular housing and the fixed part 31, and are fixed on the fixed part 31.

[0029] The oil-proof structure fan provided in the application is provided with the oil-proof ring 211. During the rotation of the fan blade 32 after the fan is powered on, the lubricating oil in the bearing is moved upward to the oil storage bin 2111 due to the centrifugal force. When the fan stops working, the lubricating oil flows back to the bottom of the shaft 21 due to the thermal expansion and cold contraction principle, thereby prolonging the service life of the fan. In addition, the black opaque oil-proof ring 211 ensures that the inside cannot be seen through the transparent fan blade 32 during use, thereby increasing the aesthetic appearance of the fan.

Claims

1. A fan with an oil spill prevention structure, comprising a fan body, a driving member, and a blade assembly, wherein the driving member is located inside the fan body and inside the blade assembly, and the blade assembly is driven by the driving member to rotate inside the fan body, characterized in that: The fan body includes a fixing seat and an annular shell, the annular shell is located above the fixing seat, the driving member includes an axis, the axis is fixed on the fixing seat, an oil-proof ring is provided on one end of the axis away from the fixing seat, and the inner wall of the oil-proof ring is arranged to abut against the axis.

2. The fan with an anti-oil spill structure according to claim 1, characterized in that: The inner wall of the oil-proof ring is interference-fitted with the outer wall of the shaft.

3. The fan with an anti-oil spill structure according to claim 2, characterized in that: The outer wall of the oil-proof ring extends to both sides to form an extension portion, the inner side of the extension portion is inclined, and the extension portions on the upper and lower sides point in opposite directions, wherein the upper extension portion points upward.

4. The fan with an anti-oil spill structure according to claim 3, characterized in that: The oil-proof ring is a black, opaque oil-proof ring.

5. The fan with an anti-oil spill structure according to claim 4, characterized in that: The driving member further includes a stator and a rotor. The stator is arranged around the outer periphery of the shaft, and the rotor is arranged around the outer periphery of the stator. The rotor and the fan blade assembly are arranged to rotate synchronously.

6. The fan with an anti-oil spill structure according to claim 5, characterized in that: An oil storage tank is formed between the lower side of the oil-proof ring, the inner side of the extension portion and the top of the stator.

7. The fan with an anti-oil spill structure according to claim 6, characterized in that: The fan blade assembly includes a middle fixed part and outer fan blades. The fixed part is sleeved on the outer periphery of the rotor and rotates synchronously with the rotor. The fan blades are arranged around the fixed part and rotate synchronously with the fixed part.

8. The fan with an anti-oil spill structure according to claim 7, characterized in that: The fixing portion is arranged in a circular ring shape, and a cover plate is provided at one end of the fixing portion away from the fixing seat. The cover plate and the fixing portion are integrally formed, and an axle seat is provided at one end of the cover plate pointing to the fixing seat, and the axle seat is used to support the axis.

9. The fan with an anti-oil spill structure according to claim 8, characterized in that: The shaft seat is provided with a clearance groove, and the clearance groove and the upper extension portion are arranged in cooperation with each other.

10. The fan with an anti-oil spill structure according to claim 9, characterized in that: The circumferential array of fan blades is arranged between the circular shell and the fixing portion, and the fan blades are fixed on the fixing portion.

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