CN214036527U - Brushless direct current motor with oil bearing structure and ventilation device - Google Patents
Brushless direct current motor with oil bearing structure and ventilation device Download PDFInfo
- Publication number
- CN214036527U CN214036527U CN202022524764.4U CN202022524764U CN214036527U CN 214036527 U CN214036527 U CN 214036527U CN 202022524764 U CN202022524764 U CN 202022524764U CN 214036527 U CN214036527 U CN 214036527U
- Authority
- CN
- China
- Prior art keywords
- oil
- bearing
- storage chamber
- limiting bulge
- annular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
The utility model relates to the technical field of motors, specifically disclose a brushless DC motor and ventilation unit of oiliness bearing structure. The bearing support seat of the motor comprises a hollow annular cavity and a cylindrical circular tube, an oil storage chamber is arranged in the hollow annular cavity, oil-containing cellucotton for storing lubricating oil is arranged in the oil storage chamber, an annular groove is arranged in the hollow annular cavity, a first annular limiting bulge corresponding to the annular groove is arranged on an oil storage chamber cover, and the first annular limiting bulge and the annular groove are movably embedded with each other and connected to the bottom of the bearing support seat; the oil storage chamber cover is also provided with a second annular limiting bulge for supporting the bearing, and a third annular limiting bulge for supporting the bearing is arranged in the cylindrical circular tube. One end of the oil-retaining bearing is nested in the third annular limiting bulge, and the other end of the oil-retaining bearing is nested in the second annular limiting bulge. The oil storage chamber can continuously provide lubricating oil for the bearing, reduces the abrasion in the bearing and effectively prolongs the service life of the motor.
Description
Technical Field
The utility model relates to the technical field of motors, concretely relates to brushless DC motor and ventilation unit of oiliness bearing structure.
Background
In the prior art, oil-containing bearings are generally used as supports for rotating shafts inside motors. However, the oil-retaining bearing of the motor is easy to have insufficient oil storage after being used for a period of time, so that the inside of the bearing is abraded, and the service life of the motor is difficult to effectively prolong.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a brushless DC motor and ventilation unit of oiliness bearing structure solves and appears the oil reserve after current motor uses a period and is not enough and lead to bearing wear, influences motor life's problem.
The utility model provides a technical scheme that its technical problem adopted is: the brushless direct current motor comprises a bearing support seat and a rotating shaft, and further comprises an oil storage chamber and an oil storage chamber cover used for sealing the oil storage chamber, wherein the oil storage chamber is located inside the bearing support seat.
Preferably, the bearing supporting seat comprises a hollowed annular cavity and a cylindrical round tube, the oil storage chamber is located in the hollowed annular cavity, and oil-containing cellucotton used for storing lubricating oil is arranged in the oil storage chamber.
Preferably, be equipped with annular groove in the fretwork annular chamber, be equipped with the spacing arch of first annular corresponding with annular groove on the oil storage chamber lid, first annular spacing arch is along covering the radial protrusion of opposite direction in the center to the oil storage chamber, and the spacing arch of first annular is connected to bearing supporting seat bottom with the mutual activity gomphosis of annular groove.
Preferably, one side of the oil storage chamber cover facing the hollow annular cavity is provided with a second annular limiting bulge for supporting the bearing, and the second annular limiting bulge protrudes towards the inner side of the hollow annular cavity.
Preferably, the bearing support seat is made of aluminum alloy or zinc alloy or plastic.
Preferably, a third annular limiting protrusion for supporting the bearing is arranged in the cylindrical round pipe, and the third annular limiting protrusion radially protrudes towards the center of the cross section of the cylindrical round pipe at the position of the third annular limiting protrusion.
Preferably, an oil-containing bearing used for supporting the rotating shaft is arranged in the cylindrical circular tube, one end of the oil-containing bearing is nested in the third annular limiting bulge, and the other end of the oil-containing bearing is nested in the second annular limiting bulge.
Preferably, one end, close to the third annular limiting protrusion, of the oil-containing bearing is provided with a flange step, the inner side, close to the rotating shaft, of the flange step is hollowed out, and the axial hollowed-out length is 1/2-2/3 of the height of the flange step; the flange step is abutted against one end, opposite to the oil storage chamber cover, of the third annular limiting bulge.
Preferably, the oil-retaining bearing is made of a copper-based powder metallurgy material, a copper-iron-based powder metallurgy material or an iron-based powder metallurgy material.
Preferably, the rotating shaft is rotatably arranged on the bearing support base through an oil-containing bearing, and oil slingers are sleeved at two ends of the connecting part.
A ventilation device comprises the brushless direct current motor with the oil-retaining bearing structure and a fan blade, wherein a central hole is formed in the fan blade, and the fan blade is sleeved on a rotating shaft of the brushless direct current motor with the oil-retaining bearing structure through the central hole.
Preferably, the fan blade is an axial flow fan blade or a cross-flow fan blade or a centrifugal fan blade.
The beneficial effects of the utility model are that, in this brushless DC motor of oiliness bearing structure, the oil storage room lid seals and exists on the oil storage room, reduces the loss of lubricating oil, and the oil storage room can last provides lubricating oil for the bearing. Reduce the inside wearing and tearing of bearing, effectively prolong the life of motor.
Drawings
Fig. 1 is a sectional view of an electric machine according to an embodiment of the present invention.
In the figure, 1, a bearing support seat, 11, a hollow annular cavity, 111, an annular groove, 112, an oil storage chamber, 12, a cylindrical round tube, 121, a third annular limiting bulge, 13, oil-containing cellucotton, 2, an oil storage chamber cover, 21, a first annular limiting bulge, 22, a second annular limiting bulge, 3, an oil-containing bearing, 31, a flange step, 4, an oil retainer and 5, a rotating shaft are arranged.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description of the present invention with reference to the accompanying drawings and embodiments is made.
In fig. 1, the brushless dc motor with an oil-retaining bearing structure according to this embodiment includes a bearing support base 1 and a rotating shaft 5, and further includes an oil storage chamber 112 and an oil storage chamber cover 2 for sealing the oil storage chamber 112. The oil storage chamber 112 is provided with oil-containing cellucotton 13 for storing lubricating oil. During the operation of the motor, the oil in the oil-impregnated bearing 3 flows out from the oil-impregnated bearing 3 and is further absorbed by the oil-impregnated cellucotton 13, and when the motor is not operated, the oil in the oil-impregnated cellucotton 13 flows back to the oil-impregnated bearing 3.
Further, the bearing support seat 1 comprises a hollow annular cavity 11 and a cylindrical circular tube 12, the oil storage chamber 112 is located in the hollow annular cavity 11, an annular groove 111 is formed in the hollow annular cavity 11, a first annular limiting protrusion 21 corresponding to the annular groove 111 is arranged on the oil storage chamber cover 2, the first annular limiting protrusion 21 protrudes radially in the opposite direction to the center of the oil storage chamber cover 2, and the first annular limiting protrusion 21 and the annular groove 111 are movably embedded with each other and connected to the bottom of the bearing support seat 1. One side of the oil storage chamber cover 2 facing the hollow annular cavity 11 is provided with a second annular limiting bulge 22 for supporting a bearing, and the second annular limiting bulge 22 protrudes towards the inner side of the hollow annular cavity 11.
Further, the bearing support seat 1 is made of aluminum alloy, zinc alloy, plastic and the like.
Further, a third annular limiting protrusion 121 for supporting the bearing is arranged in the cylindrical circular tube 12, and the third annular limiting protrusion 121 protrudes radially toward the center of the cross section of the cylindrical circular tube 12 where the third annular limiting protrusion 121 is located.
Further, a cylindrical oil-retaining bearing 3 for supporting the rotating shaft is arranged in the cylindrical circular tube 12, so that one end of the cylindrical oil-retaining bearing is nested in the third annular limiting bulge 121, and the other end of the cylindrical oil-retaining bearing is nested in the second annular limiting bulge 22, namely, the oil storage chamber cover 2 is used for sealing the oil storage chamber 112 on one hand and is used for supporting the oil-retaining bearing 3 on the other hand.
Further, one end, close to the third annular limiting protrusion 121, of the oil-retaining bearing 3 is provided with a flange step 31, the inner side, close to the rotating shaft 5, of the flange step 31 is hollowed out, and the axial hollowed-out length is 1/2-2/3 of the height of the flange step 31; the flange step 31 abuts against one end of the third annular limiting protrusion 121 opposite to the oil storage chamber cover 2, so that the oil-retaining bearing 3 is further stable in the rotation process of the motor. The rotating shaft 5 is rotatably arranged on the bearing supporting seat 1 through the oil-containing bearing 3, and oil slingers 4 are sleeved at two ends of the connecting part, so that the loss of lubricating oil is reduced.
Further, the oil-impregnated bearing 3 is made of a material such as copper-based powder metallurgy, copper-iron-based powder metallurgy, or the like.
Furthermore, the fan blade with a central hole is sleeved on the rotating shaft 5 of the outer rotor motor to form a ventilation device. Different blades can be selected according to different requirements, such as axial flow blades, cross-flow blades and centrifugal blades, and correspondingly, the assembled ventilation device comprises an electric fan, air filtering equipment and environmental ventilation equipment.
The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention should fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a brushless DC motor of oiliness bearing structure, includes bearing support seat (1) and pivot (5), its characterized in that: the bearing support seat further comprises an oil storage chamber (112) and an oil storage chamber cover (2) used for sealing the oil storage chamber (112), wherein the oil storage chamber (112) is positioned inside the bearing support seat;
the bearing supporting seat (1) comprises a hollow annular cavity (11) and a cylindrical round tube (12), the oil storage chamber (112) is located in the hollow annular cavity (11), and oil-containing cellucotton (13) used for storing lubricating oil is arranged in the oil storage chamber (112).
2. A brushless dc motor having an oil-impregnated bearing structure according to claim 1, wherein:
an annular groove (111) is formed in the hollowed-out annular cavity (11), a first annular limiting bulge (21) corresponding to the annular groove (111) is arranged on the oil storage chamber cover (2), the first annular limiting bulge (21) radially protrudes in the direction opposite to the center of the oil storage chamber cover (2), and the first annular limiting bulge (21) and the annular groove (111) are movably embedded with each other and connected to the bottom of the bearing supporting seat (1);
one side of the oil storage chamber cover facing the hollow annular cavity (11) is provided with a second annular limiting bulge (22) used for supporting the bearing, and the second annular limiting bulge (22) protrudes towards the inner side of the hollow annular cavity (11).
3. A brushless dc motor having an oil-impregnated bearing structure according to claim 2, wherein: the bearing support seat (1) is made of aluminum alloy or zinc alloy or plastic.
4. A brushless dc motor having an oil-impregnated bearing structure according to claim 2, wherein:
and a third annular limiting bulge (121) for supporting the bearing is arranged in the cylindrical circular tube (12), and the third annular limiting bulge (121) radially protrudes towards the center of the cross section of the cylindrical circular tube (12) at the position of the third annular limiting bulge (121).
5. The brushless dc motor of claim 4, wherein: an oil bearing (3) used for bearing the rotating shaft is arranged in the cylindrical circular tube (12), one end of the oil bearing (3) is nested in the third annular limiting bulge (121), and the other end of the oil bearing (3) is nested in the second annular limiting bulge (22).
6. The brushless dc motor of claim 5, wherein: a flange step (31) is arranged at one end, close to the third annular limiting protrusion (121), of the oil-retaining bearing (3), the inner side, close to the rotating shaft (5), of the flange step (31) is hollowed out, and the axial hollowed-out length is 1/2-2/3 of the height of the flange step (31); the flange step (31) abuts against one end, opposite to the oil storage chamber cover (2), of the third annular limiting bulge (121).
7. The brushless dc motor of claim 6, wherein: the oil-retaining bearing (3) is made of a copper-based powder metallurgy material or a copper-iron-based powder metallurgy material or an iron-based powder metallurgy material.
8. The brushless dc motor of claim 5, wherein: the rotating shaft (5) is rotatably arranged on the bearing supporting seat (1) through an oil-containing bearing (3), and oil slingers (4) are sleeved at two ends of the connecting part.
9. A ventilation device, characterized by: the brushless direct current motor comprising the oil-impregnated bearing structure according to any one of claims 1 to 8, further comprising a fan blade, wherein the fan blade is provided with a central hole and is sleeved on a rotating shaft (5) of the brushless direct current motor comprising the oil-impregnated bearing structure through the central hole.
10. A ventilating device according to claim 9, wherein: the fan blades are axial flow fan blades or cross flow fan blades or centrifugal fan blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022524764.4U CN214036527U (en) | 2020-11-05 | 2020-11-05 | Brushless direct current motor with oil bearing structure and ventilation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022524764.4U CN214036527U (en) | 2020-11-05 | 2020-11-05 | Brushless direct current motor with oil bearing structure and ventilation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214036527U true CN214036527U (en) | 2021-08-24 |
Family
ID=77356880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022524764.4U Active CN214036527U (en) | 2020-11-05 | 2020-11-05 | Brushless direct current motor with oil bearing structure and ventilation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214036527U (en) |
-
2020
- 2020-11-05 CN CN202022524764.4U patent/CN214036527U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101372981B (en) | Heat radiation fan | |
| US7847452B2 (en) | Motor with raised rotor | |
| CN1288821C (en) | Blowing machine motor | |
| CN214036527U (en) | Brushless direct current motor with oil bearing structure and ventilation device | |
| EP0082552A1 (en) | Sealing assembly for a rolling bearing | |
| US4712031A (en) | Unit bearing motor with hydrodynamic lubricating system | |
| JP4742834B2 (en) | Cleaner motor bearings | |
| CN214118713U (en) | Supporting structure of multi-thread slicer main shaft home roll | |
| CN113217542A (en) | Oil-retaining bearing, motor end cover assembly, motor and electric appliance | |
| CN218817625U (en) | Portable fan and bearing thereof | |
| CN202628592U (en) | Multistage pump provided with self-lubricating bearing device | |
| CN218913497U (en) | Wear-resisting type pivot of long-life | |
| CN2764041Y (en) | Oil stop ring for motor with cooling grid | |
| CN215817778U (en) | Novel low-noise motor structure | |
| CN220622495U (en) | Oil retaining structure of oil-containing bearing assembly and oil-containing bearing motor | |
| CN215890567U (en) | Oil bearing capable of distinguishing direction for outer rotor fan | |
| CN217904162U (en) | Waterproof motor device and cleaning machine | |
| CN209150870U (en) | A kind of motor with oil storage chamber structure | |
| CN213744091U (en) | Rotating structure and household appliance | |
| CN216564718U (en) | Rear support assembly of motor | |
| CN219366364U (en) | Low-noise energy-saving fan | |
| CN215171578U (en) | Oil-retaining bearing, motor end cover assembly, motor and electric appliance | |
| CN2394035Y (en) | Pivot jointed with slide bearing | |
| CN101358622A (en) | Oilless bearing and radiator fan using the oilless bearing | |
| CN216199187U (en) | Fan oil retention mechanism and fan thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |