CN214404065U - Dustproof oil-splashing-preventing heat-radiating fan structure - Google Patents
Dustproof oil-splashing-preventing heat-radiating fan structure Download PDFInfo
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- CN214404065U CN214404065U CN202120367658.1U CN202120367658U CN214404065U CN 214404065 U CN214404065 U CN 214404065U CN 202120367658 U CN202120367658 U CN 202120367658U CN 214404065 U CN214404065 U CN 214404065U
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- 239000003921 oil Substances 0.000 claims abstract description 103
- 238000003860 storage Methods 0.000 claims abstract description 27
- 230000002093 peripheral effect Effects 0.000 claims abstract description 12
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 9
- 239000005871 repellent Substances 0.000 claims abstract 9
- 238000001816 cooling Methods 0.000 claims description 25
- 238000013461 design Methods 0.000 claims description 9
- 239000010687 lubricating oil Substances 0.000 description 15
- 238000013016 damping Methods 0.000 description 7
- 230000017525 heat dissipation Effects 0.000 description 7
- 239000000428 dust Substances 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 5
- 230000008034 disappearance Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005288 electromagnetic effect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
本实用新型提供一种防尘防甩油散热风扇结构，其包括有：一基座，该基座设有一轴承座，该轴承座内设有一储油槽；一具有轴穿孔的轴承，设于该轴承座内，该轴穿孔的上下端外围分别连通设有一轴承上油槽、一轴承下油槽，该轴承下油槽连通该储油槽，该轴承的周边设有复数油道，该油道连通该轴承上油槽及该轴承下油槽；一定子，套设于该轴承座外侧，该定子的外环侧设有复数的硅钢线圈组；一扇轮单元，包括一呈中空的轮毂，该轮毂外侧设有复数扇叶，该轮毂内设有一环状的防甩油墙，该防甩油墙内设有一轴杆，该轴杆穿设于该轴穿孔，该轮毂内周面设有一相对该硅钢线圈组的磁铁环。
The utility model provides a dust-proof, oil-repellent, and heat-dissipating fan structure, which comprises: a base, the base is provided with a bearing seat, an oil storage tank is arranged in the bearing seat; a bearing with a shaft perforation is arranged on the bearing seat In the bearing seat, the periphery of the upper and lower ends of the shaft perforation is respectively connected with a bearing upper oil groove and a bearing lower oil groove. an oil groove and an oil groove under the bearing; a stator is sleeved on the outer side of the bearing seat, and a plurality of silicon steel coil groups are arranged on the outer ring side of the stator; a fan wheel unit includes a hollow hub, and the outer side of the hub is provided with a plurality of The fan blade, the hub is provided with a ring-shaped oil rejection wall, the oil rejection wall is provided with a shaft, the shaft is penetrated through the shaft hole, the inner peripheral surface of the hub is provided with a relative to the silicon steel coil group. magnet ring.
Description
Technical Field
The utility model relates to a fan structure especially indicates a can noise reduction, operate steady radiator fan, and more can durable and prolong dustproof of its life, quality and prevent getting rid of oily radiator fan structure.
Background
At present, due to the development and mass use of computers/electronic equipment, a cooling fan is a cooling device commonly used for such products, and is used for rapidly removing heat energy generated by electronics, motor components or other equipment so as to achieve the purposes of cooling and heat dissipation, and further ensure the efficiency, quality and service life of the product operation. The cooling fan is an electromechanical device using the principle of a motor, which utilizes the electromagnetic effect to generate rotational energy output, generally speaking, the cooling fan (motor) usually comprises a Stator (Stator) and a rotor (rotor) which are combined by a bearing; the Stator (Stator) and the rotor (Rotator) can be selectively wound with coils or made of permanent magnetic materials, so that when current passes through the wound coils, the rotor rotates relative to the Stator through an electromagnetic effect, and therefore fan blades arranged on the rotor can perform air flow operation to achieve the purposes of heat dissipation and cooling.
In the aforementioned rotating operation of the rotor blade, firstly, the problem of lubrication of the rotating friction of the rotor blade needs to be considered, and the conventional cooling fan usually performs the lubrication operation by using the rotating shaft as a lubricating agent and a drag reducer with respect to an oil sealed Bearing (Sleeve Bearing), so as to achieve a quiet effect. When the rotor/rotating shaft is started from a static state, the lubricating oil in the oil storage tank below the bearing can be lifted from the oil storage tank to a gap between the rotating shaft and the bearing due to the negative pressure generated by the rotation of the rotating shaft so as to lubricate and reduce the relative friction and the abrasion, most of the lubricating oil is gathered at the upper top part of the rotating shaft along with time, and the lubricating oil can flow downwards to be stored in the oil storage tank due to the disappearance of the negative pressure after the rotation of the bearing is stopped. The existing heat dissipation fan is designed to make the lubricating oil easily leak after long-time circulation operation, i.e. the heat dissipation fan will gradually throw away the lubricating oil at the upper end of the rotating shaft when operating at high speed for a long time, so as to gradually lose its lubricating function, further generate friction loss, increase noise, and pollute the internal fittings, resulting in reduced service life and quality of use, and non-ideal design.
Moreover, when the heat dissipation fan operates, airflow occurs around the heat dissipation fan, so that external fine dust can enter the fan from a gap of the fan bracket, especially enter the center bearing, and the friction and the locking of the rotating shaft and the bearing or the defect of generating abnormal sound can be caused; in addition, when the cooling fan is started or stopped, the rotor/shaft will vibrate relative to the stator at the same time, although the prior art has a gasket supported below the shaft, the gasket has no other structural design for matching operation, and the vibration phenomenon cannot be effectively reduced, the texture of the whole operation is affected, and there is a need for improvement. Therefore, how to improve the problems of the conventional heat dissipation fan, it is an important direction for the industry to try to solve and overcome.
Therefore, the utility model discloses the designer is in view of the disappearance and the fact that structural design is not quite ideal on using of current radiator fan technique, and the present case utility model discloses the designer is on hand developing its solution promptly, hopes to develop one kind and has had application stability, low noise and improve life's dustproof prevent getting rid of oily radiator fan structure to serve the public and promote the development of this industry, the reason when many and have the utility model discloses a production.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a prevent getting rid of oil cooling fan structure, its operation that enables radiator fan can the noise reduction to have steady, the stable effect in the function, and then actively promote its life and quality of use, feel.
The utility model discloses a still another purpose provides a prevent getting rid of oily radiator fan structure, and it can prevent when enabling the radiator fan operation that outside slight dust from borrowing by inside the air current gets into the fan, and then causes the disappearance of dead or production abnormal sound of pivot and bearing friction card for a long time when actively avoiding.
The utility model discloses a still another purpose is providing a prevent getting rid of oily radiator fan structure, it enables radiator fan when permanent operation, prevents to aggregate and assembles the lubricating oil of department in the pivot upper end gradually by being thrown away, avoids radiator fan to lose its lubricating function gradually or leads to lubricating oil to spill over and influence the quality of production and feels.
Another objective of the present invention is to provide a dustproof anti-oil-splashing cooling fan structure, which can make the bottom of the rotating shaft of the cooling fan have proper buffer space design under the operation of direct tight-fitting, and can actively reduce the slight vibration and resonance of the fan blades, so as to increase the silent quality of the cooling fan.
The utility model discloses a reach the technical means that above-mentioned purpose adopted including:
the utility model provides a dustproof prevent getting rid of oily radiator fan structure which characterized in that, including:
a base, which is provided with a bearing seat, and an oil storage tank is arranged in the bearing seat;
the bearing is arranged in the bearing seat and provided with a shaft through hole, the periphery of the upper end and the lower end of the shaft through hole is respectively communicated with a bearing upper oil groove and a bearing lower oil groove, the bearing lower oil groove is communicated with the oil storage groove, and the periphery of the bearing is provided with a plurality of oil ducts which are communicated with the bearing upper oil groove and the bearing lower oil groove;
the stator is provided with a sleeving space sleeved outside the bearing seat, a plurality of silicon steel coil groups are arranged on the outer ring side of the stator, an opening communicated with the outside is arranged above the sleeving space, an inner ring retaining wall and an outer ring retaining wall are sequentially arranged at intervals from the outer ring periphery of the opening to the outside, and the inner ring retaining wall forms a leakage-proof storage space communicated with the opening;
a fan wheel unit, including a hollow wheel hub, the inboard of this wheel hub is equipped with the wheel hub space of a shroud this stator, and this wheel hub outside is equipped with plural flabellum, is equipped with an annular oil wall that prevents getting rid of in this wheel hub space, should prevent getting rid of the oil wall and lie in relatively between this inner ring barricade, this outer ring barricade, should prevent getting rid of the oil wall and be equipped with a axostylus axostyle, this axostylus axostyle wears to locate this through-shaft hole, the global magnet ring that is equipped with this silicon steel coil group relatively in this wheel hub space.
In the present embodiment, the base has a peripheral wall at a central portion thereof, and the peripheral wall has an accommodating space for accommodating the bearing seat therein.
In the present embodiment, the stator is electrically connected to a control circuit board, and the control circuit board is disposed in the accommodating space.
In this embodiment, the bearing seat has a bearing space therein for being disposed to the bearing, the bottom surface of the bearing space is provided with a recessed damping groove, and the damping groove is provided with a wear pad for the shaft to abut against.
In the present embodiment, the oil reservoir is a cross-shaped oil reservoir, and the inside of the bearing seat of the cross-shaped oil reservoir is formed by the bottom surface of the bearing space by means of a height design.
In this embodiment, the oil passages include an upper oil passage which is communicated with the upper oil groove of the bearing at the upper part, a circumferential oil passage which is longitudinally arranged at the periphery of the bearing, and a lower oil passage which is communicated with the lower oil groove of the bearing at the lower part.
In this embodiment, a ring recess is formed at an end of the shaft near the hub, and the oil retaining ring has an insertion hole for inserting into the ring recess, and the diameter of the insertion hole is wider than that of the ring recess, so that a ring gap is formed between the oil retaining ring and the shaft.
In this embodiment, the oil retaining ring is located between the bearing and the leak-proof storage space.
By means of the structure, the dustproof oil-splashing-preventing cooling fan can reduce the noise when operating, has stable and stable operation effect, and further actively improves the service life, the service quality and the texture; meanwhile, the utility model can effectively prevent external fine dust from entering the interior of the fan by airflow when the cooling fan runs, thereby actively avoiding the loss of friction and jamming of the rotating shaft and the bearing or generation of abnormal sound caused by long time; moreover, the utility model can prevent the lubricating oil gathered and gathered at the upper end of the rotating shaft from being thrown out gradually when the cooling fan runs for a long time, and avoid the cooling fan losing its lubricating function gradually or causing the lubricating oil to overflow to affect the quality feeling; furthermore, the bottom of the shaft rod of the present invention has a proper buffer space design under the operation of the direct tight fit, so as to actively reduce the slight vibration and resonance of the fan blades, and further increase the silent quality.
For further understanding and appreciation of the technical features and advantages of the present invention, reference should be made to the accompanying drawings, which are illustrated in the accompanying drawings, and detailed description thereof.
Drawings
Fig. 1 is a schematic view of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a schematic view of the present invention showing a partial structure.
Fig. 4 is a schematic sectional view of the present invention.
Fig. 5 is a schematic sectional view of a partial oil path according to the present invention.
Fig. 6 is a schematic view of a partial oil path cross-section according to the present invention.
Description of reference numerals: a heat radiation fan 1; a base 10; a bearing 20; a stator 30; a fan wheel unit 40; a bottom wall 11; a peripheral wall 12; an accommodating space 13; a bearing seat 14; a bearing space 140; a damper groove 15; a cross-shaped oil reservoir 16; a wear-resistant pad 17; a shaft through hole 21; a bearing gap 21A; an upper bearing oil groove 22; a bearing lower oil groove 23; the oil passage 24; an upper oil gallery 241; a circumferential surface oil passage 242; the lower oil gallery 243; a housing space 31; a port 310; an inner annular retaining wall 311; an outer annular retaining wall 312; a leak-proof storage space 313; a control circuit board 32; a silicon steel coil group 33; a hub 41; a hub space 410; an oil slinger 411; fan blades 412; an anti-whip space 413; the shaft 42; a ring recess 421; a tightening ring 43; a magnet ring 44; an oil retaining snap ring 45; the fitting hole 451; the retaining ring gap 45A.
Detailed Description
Referring to fig. 1 to 4 for describing an embodiment of the dustproof, oil-splashing-proof and heat-dissipating fan structure of the present invention, the heat-dissipating fan 1 disclosed in this embodiment includes a base 10, a bearing 20, a stator 30 and a fan wheel unit 40.
The base 10 has a bottom wall 11, the bottom wall 11 has a peripheral wall 12 at the central portion, the peripheral wall 12 has a concave accommodating space 13 therein, the central portion of the accommodating space 13 has an upwardly extending tubular bearing seat 14, the bearing seat 14 has a bearing space 140 therein, the bottom surface of the bearing space 140 has a concave damping groove 15, the damping groove 15 is provided with a wear-resistant gasket 17, the diameter width of the wear-resistant gasket 17 is larger than that of the damping groove 15 and can be completely covered; the bottom surface of the bearing space 140 (bearing seat 14) is designed to form a cross-shaped oil reservoir 16 by means of height, but the shape is not limited thereto.
The bearing 20 is disposed in the bearing space 140 of the bearing seat 14, the bearing 20 is provided with a shaft through hole 21, the upper and lower parts of the bearing 20 are respectively provided with a bearing upper oil groove 22 and a bearing lower oil groove 23 at the periphery of the shaft through hole 21, and the bearing lower oil groove 23 is communicated with the cross-shaped oil storage groove 16; the bearing 20 is provided with a plurality of oil passages 24 at its periphery, and the oil passages 24 include an upper oil passage 241 communicating with the upper oil groove 22 of the bearing at its upper side, a peripheral oil passage 242 at its periphery in the longitudinal direction, and a lower oil passage 243 communicating with the lower oil groove 23 of the bearing at its lower side (see fig. 6). The stator 30 has an inner space 31, the stator 30 is sleeved outside the bearing seat 14 by the space 31, the bottom of the stator 30 is linked with a control circuit board 32, the control circuit board 32 is positioned in the accommodating space 13 of the base 10, and the stator 30 and the control circuit board 32 are electrically connected to control the movement of the stator 30; a plurality of silicon steel coil groups 33 are arranged on the outer ring side of the stator 30; the housing space 31 is provided with a through hole 310 with a smaller diameter and communicating with the outside, the stator 30 is provided with an inner annular wall 311 and an outer annular wall 312 at intervals in sequence from the outer periphery of the through hole 310, the inner annular wall 311 is used to form a leakage-proof storage space 313.
The impeller unit 40 includes a hollow hub 41, a hub space 410 is provided inside the hub 41 for covering the stator 30, a plurality of blades 412 are provided outside the hub 41 and respectively protrude outwards, an annular oil-splashing preventing wall 411 is provided at a center portion of the hub space 410, an oil-splashing preventing space 413 is formed inside the oil-splashing preventing wall 411, a shaft rod (rotating shaft 42) is provided at a center portion of the oil-splashing preventing space 413 of the hub 41, the shaft rod 42 is rotatably inserted (pivoted) through the shaft through hole 21 of the bearing 20 and abuts against the wear pad 17, and a bearing gap 21A (see fig. 6) is provided between the shaft rod 42 and the shaft through hole 21; a magnet ring 44 is disposed on the peripheral surface of the hub space 410, and in the preferred embodiment, a fastening ring 43 is disposed between the peripheral surface of the hub space 410 and the magnet ring 44, so that the magnet ring 44 can be fastened to the hub 41, and the magnet ring 44 is disposed opposite to the silicon steel coil assembly 33; the end of the shaft 42 near the hub 41 is provided with a ring recess 421, and a retaining ring 45, the retaining ring 45 has an insertion hole 451 for being inserted into the ring recess 421, the diameter of the insertion hole 451 is slightly larger than the diameter of the ring recess 421, so that a retaining ring gap 45A (see fig. 6) is formed between the retaining ring 45 and the shaft 42.
In the above combination, the cross-shaped oil reservoir 16 and the bearing lower oil reservoir 23 form a lower oil reservoir (not numbered), the oil retaining ring 45 is located between the bearing 20 and the leakage-proof storage space 313 (through hole 310), and the bearing upper oil reservoir 22 and the ring recess 421 below the oil retaining ring 45 form an upper oil reservoir (not numbered) which are communicated with the bearing gap 21A (shaft through hole 21). Furthermore, the oil-splashing preventing wall 411 is located between the inner annular retaining wall 311 and the outer annular retaining wall 312, and the oil-splashing preventing wall 411 can prevent the tiny lubricant from splashing out, and prevent the tiny dust from entering from the bracket gap of the hub 41 by the airflow, so that the oil-splashing preventing wall 411 can effectively prevent the tiny dust from entering the inside of the bearing 20, and avoid the phenomena of friction, jamming, abnormal noise, etc. between the shaft rod 42 and the bearing 20.
Referring to fig. 5 and 6, when the dustproof oil-splashing-preventing heat-dissipating fan structure of the present invention operates, the control circuit board 32 can control the stator 30 to generate a polarity identical to that of the magnet ring 44 to form a repulsive force, so as to drive the fan wheel unit 40 to rotate and support by the shaft rod 42 pivoted in the bearing 20; when the impeller unit 40 rotates, the lubricating oil stored in the lower oil storage groove (the cross-shaped oil storage groove 16 and the bearing lower oil groove 23) is lifted and distributed in the bearing gap 21A from the lower oil storage groove due to the negative pressure generated by the rotation of the shaft rod 42, so as to lubricate the surfaces of the shaft rod 42 and the shaft through hole 21, reduce the abrasion caused by the rotation, and eliminate the noise caused by the rotation friction; when the lubricating oil in the bearing gap 21A rises due to the rotation of the impeller unit 40, the lubricating oil is accumulated and stored in the upper oil storage groove portion (the bearing upper oil groove 22, the ring recess 421), and then flows back to the lower oil storage groove portion through the oil passages 24 (the upper oil passage 241, the peripheral oil passages 242, and the lower oil passage 243) for continuous use. By such design, the lubricating oil gathered and gathered in the upper oil storage groove part can be prevented from being further pressed and drawn out or thrown out of the upper oil storage groove part, and the worry of leakage is prevented. When the rotation of the impeller unit 40 is stopped, the lubricant in the bearing gap 21A can flow back to the lower oil storage tank for recycling in the next operation due to the disappearance of the negative pressure.
In addition, when the shaft rod 42 is operated, the damping groove 15 is arranged below the wear-resistant gasket 17 abutted by the shaft rod 42, so that a damping space is formed between the shaft rod 42 and the bottom of the base 10, slight shaking and resonance of the fan blades 412 can be reduced under the direct close-fitting type friction operation of the shaft rod 42 and the bottom of the base 10, and the silent degree of the vibration can be increased.
By means of the structure, the dustproof oil-splashing-preventing cooling fan can reduce the noise when operating, has stable and stable operation effect, and further actively improves the service life, the service quality and the texture; meanwhile, the utility model can effectively prevent external fine dust from entering the interior of the fan by airflow when the cooling fan runs, thereby actively avoiding the loss of friction and jamming of the rotating shaft and the bearing or generation of abnormal sound caused by long time; moreover, the utility model can prevent the lubricating oil gathered and gathered at the upper end of the rotating shaft from being thrown out gradually when the cooling fan runs for a long time, and avoid the cooling fan losing its lubricating function gradually or causing the lubricating oil to overflow to affect the quality feeling; furthermore, the bottom of the shaft rod of the present invention has a proper buffer space design under the operation of the direct tight fit, so as to actively reduce the slight vibration and resonance of the fan blades, and further increase the silent quality.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120367658.1U CN214404065U (en) | 2021-02-09 | 2021-02-09 | Dustproof oil-splashing-preventing heat-radiating fan structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120367658.1U CN214404065U (en) | 2021-02-09 | 2021-02-09 | Dustproof oil-splashing-preventing heat-radiating fan structure |
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| Publication Number | Publication Date |
|---|---|
| CN214404065U true CN214404065U (en) | 2021-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120367658.1U Active CN214404065U (en) | 2021-02-09 | 2021-02-09 | Dustproof oil-splashing-preventing heat-radiating fan structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113839521A (en) * | 2021-11-02 | 2021-12-24 | 上海磐拓航空科技服务有限公司 | A liquid-cooled motor and air propeller propulsion system without external cooling |
-
2021
- 2021-02-09 CN CN202120367658.1U patent/CN214404065U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113839521A (en) * | 2021-11-02 | 2021-12-24 | 上海磐拓航空科技服务有限公司 | A liquid-cooled motor and air propeller propulsion system without external cooling |
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