CN218102886U - Outer rotor direct current brushless motor easy to radiate heat - Google Patents
Outer rotor direct current brushless motor easy to radiate heat Download PDFInfo
- Publication number
- CN218102886U CN218102886U CN202222306684.0U CN202222306684U CN218102886U CN 218102886 U CN218102886 U CN 218102886U CN 202222306684 U CN202222306684 U CN 202222306684U CN 218102886 U CN218102886 U CN 218102886U
- Authority
- CN
- China
- Prior art keywords
- fixed
- cylindricality
- cover
- shell
- 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
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model relates to an external rotor DC brushless motor technical field specifically discloses an external rotor DC brushless motor who easily dispels heat, including stator module and rotor subassembly, stator module includes the cylindricality cover, the end plate, winding structure and driver, the rotor subassembly includes the pivot, the carousel, cylindric shell and magnet, the fixed ring is fixed to the position fixing cover that cylindricality cover outer wall corresponds between cylindric shell top and the end plate bottom surface, the position of being close to the outer fringe of fixed ring top surface is equipped with the annular groove, the driver is located the annular groove inner chamber, the fixed blade wheel of being fixed with is fixed to the position fixing cover that cylindric shell inner chamber is close to the magnet top, the top of cylindric shell lateral wall is equipped with a plurality of exhaust holes along circumference, the carousel bottom surface is equipped with a plurality of inlet ports along circumference, the inner edge of cylindric shell bottom can be dismantled and be fixed with annular filter; the problem that the heat dissipation performance of the outer rotor direct current brushless motor is poor is solved well.
Description
Technical Field
The utility model relates to an external rotor DC brushless motor technical field specifically is an easy radiating external rotor DC brushless motor.
Background
The brushless direct current motor is composed of a motor main body and a driver, and is a typical electromechanical integration product. Structurally, the brushless motor is similar to the brush motor, and is provided with a rotor and a stator, but the structure of the brushless motor is opposite to that of the brush motor; the rotor of the brush motor is a coil winding and is connected with the power output shaft, and the stator is permanent magnet steel; the rotor of the brushless motor is permanent magnetic steel, and is connected with output shaft together with its outer shell, and the stator is winding coil, and has no commutating brush for alternatively changing electromagnetic field, so that it is called brushless motor. The dc brushless motor can be further classified into an outer rotor type and an inner rotor type according to a positional relationship between the stator and the rotor. The outer rotor brushless DC motor has the advantages of large rotational inertia, simple maintenance, convenience in heat dissipation and the like, and is widely applied to various products.
However, in the existing external rotor motor, the external rotor motor is only in an open state between the motor housing and the stator core, and the connection structure of the motor housing, the end cover and the rotor shaft is relatively closed, so that the circulation of ambient air and the air inside the motor is not smooth, which easily causes the problems of overheating of the motor and damage of internal components.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an easy radiating external rotor DC brushless motor for solve the not good problem of external rotor DC brushless motor heat dispersion among the prior art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an easy radiating external rotor brushless DC motor, includes stator module and rotor subassembly, stator module includes the cylindricality cover, is fixed in the end panel at cylindricality cover top, be fixed in cylindricality cover outlying winding structure and with winding structure electric connection's driver, the rotor subassembly including rotate the suit in the pivot of cylindricality cover inner chamber, be fixed in the carousel of pivot bottom, overlap in winding structure periphery and bottom with carousel top surface outer fringe fixed connection's cylindricality shell and fix in along circumference a plurality of magnets of cylindricality shell internal perisporium, cylindricality cover outer wall corresponds cylindricality shell top with fixed ring is equipped with to the fixed cover in the position between the end panel bottom surface, the position that is close to of fixed ring top surface is equipped with the annular groove, the driver is located the annular groove inner chamber, cylindricality shell inner chamber is close to the fixed blade wheel is equipped with to the position on magnet top, the top of cylindricality shell lateral wall is equipped with a plurality of exhaust holes along circumference, the carousel bottom surface is equipped with a plurality of inlet ports along circumference, the annular filter can be dismantled and be fixed with of cylindricality shell bottom edge.
Preferably, the top of cylindricality cover is equipped with the annular slab, end panel bottom surface middle part be equipped with the annular slab is fixed cup joint the circular recess that matches.
Preferably, the cylindricality cover periphery wall is close to the top position and evenly is equipped with a plurality of vertical fixture blocks along circumference, gu fixed ring's center be equipped with the cylindricality cover slides and cup joints the jack that matches, the internal perisporium of jack along circumference be equipped with a plurality of with the draw-in groove that the fixture block joint matches.
Preferably, the middle part of the inner peripheral wall of the cylindrical shell is uniformly provided with a plurality of vertical strip-shaped convex parts along the circumferential direction, and the magnet is clamped between two adjacent strip-shaped convex parts.
Preferably, the center of the top surface of the rotary table is provided with a slot fixedly spliced and matched with the bottom end of the rotating shaft, an annular convex part is arranged at the position, close to the outer edge, of the top surface of the rotary table, and an annular concave part fixedly sleeved and matched with the annular convex part is arranged at the position, close to the outer edge, of the bottom surface of the cylindrical shell.
Preferably, the vane wheel comprises an outer ring body fixedly sleeved on the position, close to the top, of the inner peripheral wall of the cylindrical shell and vanes uniformly and fixedly connected to the inner peripheral wall of the outer ring body along the circumferential direction.
Preferably, the bottom surface of the fixing ring is of a spherical convex surface structure.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model relates to an easy radiating external rotor DC brushless motor forms the wind current at cylindric shell inner chamber through the impeller along with rotor subassembly pivoted, and the wind current gets into cylindric shell inner chamber after the ring filter filters, takes away the heat that equipment operation produced and discharges through the exhaust hole to external rotor DC brushless motor's heat dispersion has been improved greatly.
Drawings
FIG. 1 is a schematic overall front view of the present invention;
FIG. 2 is a schematic view of the three-dimensional structure of the cylindrical sleeve of the present invention;
fig. 3 is a schematic bottom view of the end plate of the present invention;
fig. 4 is a schematic perspective view of the fixing ring of the present invention;
fig. 5 is a schematic top view of the turntable of the present invention;
fig. 6 is a schematic top view of the cylindrical housing of the present invention;
fig. 7 is a schematic bottom view of the cylindrical housing of the present invention.
In the figure: 1-a stator assembly; 11-cylindrical sleeve; 111-annular plate; 112-a fixture block; 12-end panels; 121-circular grooves; 13-a winding structure; 14-a fixing ring; 141-a jack; 142-an annular groove; 143-card slot; 15-a driver;
2-a rotor assembly; 21-a rotating shaft; 22-a turntable; 221-a slot; 222-an annular projection; 223-air inlet holes; 23-a cylindrical housing; 231-bar-shaped convex parts; 232-exhaust hole; 233-annular recess; 24-a magnet;
3-a vane wheel; 31-outer ring body; 32-blades;
4-ring filter plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: the utility model provides an outer rotor brushless DC motor easy for heat dissipation, including stator module 1 and rotor subassembly 2, stator module 1 includes cylindrical sleeve 11, the end panel 12 of being fixed in cylindrical sleeve 11 top, be fixed in cylindrical sleeve 11 outlying winding structure 13 and with winding structure 13 electric connection's driver 15, rotor subassembly 2 is including rotating the pivot 21 of suit in cylindrical sleeve 11 inner chamber, be fixed in the carousel 22 of pivot 21 bottom, the barrel-shaped shell 23 of cover in winding structure 13 periphery and bottom and carousel 22 top surface outer fringe fixed connection and along a plurality of magnets 24 of circumference fixed in barrel-shaped shell 23 internal perisporium, the fixed cover in position that cylindrical sleeve 11 outer wall corresponds between barrel-shaped shell 23 top and end panel 12 bottom surface is fixed with solid fixed ring 14, the position that is close to the outer fringe of solid fixed ring 14 top surface is equipped with annular groove 142, driver 15 locates annular groove 142 inner chamber, the fixed cover in position that cylindrical shell 23 inner chamber is close to magnet 24 top is equipped with blade wheel 3, the top of barrel-shaped shell 23 lateral wall is equipped with a plurality of exhaust holes 232 along circumference, carousel 22 bottom surface is equipped with a plurality of inlet openings 223 along circumference, the inner edge can dismantle and be fixed with annular filter 4 at the barrel-shaped shell 23 bottom.
To sum up, the side wall of the fixing ring 14 is provided with a through hole corresponding to the inner cavity of the annular groove 142 for electrically connecting the driver 15 with the circuit; when the rotor assembly 2 rotates relative to the stator assembly 1, the blade wheel 3 rotates to form wind flow from bottom to top in the cylindrical shell 23; the air flow entering the inner cavity of the cylindrical shell 23 firstly passes through the air inlet 223 and enters the inner cavity 23 of the cylindrical shell after being filtered by the annular filter plate 4, and the air flow fully absorbs heat generated by the operation of the assembly and then is discharged from the air outlet 232, so that the effect of improving the heat dissipation performance of the outer rotor direct current brushless motor is achieved;
in order to ensure the smooth and stable rotation of the rotating shaft 21 relative to the cylindrical sleeve 11, bearings are sleeved on the periphery of the rotating shaft 21 at two ends of the inner cavity of the cylindrical sleeve 11.
In this embodiment, the top end of the cylindrical sleeve 11 is provided with an annular plate 111, and the middle of the bottom surface of the end plate 12 is provided with a circular groove 121 fixedly sleeved and matched with the annular plate 111.
In this embodiment, the outer peripheral wall of the cylindrical sleeve 11 is close to the top end position and is evenly provided with a plurality of vertical fixture blocks 112 along the circumference, the center of the fixing ring 14 is provided with a jack 141 which is matched with the cylindrical sleeve 11 in a sliding and sleeving manner, and the inner peripheral wall of the jack 141 is provided with a plurality of clamping grooves 143 which are matched with the fixture blocks 112 in a clamping manner along the circumference.
In this embodiment, a plurality of vertical strip-shaped protrusions 231 are uniformly arranged in the middle of the inner circumferential wall of the cylindrical housing 23 along the circumferential direction, and the magnet 24 is clamped between two adjacent strip-shaped protrusions 231.
In this embodiment, a slot 221 fixedly inserted and matched with the bottom end of the rotating shaft 21 is formed in the center of the top surface of the rotating disc 22, an annular convex portion 222 is formed in the position, close to the outer edge, of the top surface of the rotating disc 22, an annular concave portion 233 fixedly sleeved and matched with the annular convex portion 222 is formed in the position, close to the outer edge, of the bottom surface of the cylindrical shell 23, the annular filter plate 4 is clamped in the annular concave portion 233, then the annular convex portion 222 is sleeved in the annular concave portion 233, and the outer edge of the annular filter plate 4 is pressed and fixed while the cylindrical shell 23 and the rotating disc 22 are fixedly connected.
In this embodiment, the vane wheel 3 includes an outer ring body 31 fixedly sleeved on the inner peripheral wall of the cylindrical shell 23 near the top, and vanes 32 uniformly and fixedly connected to the inner peripheral wall of the outer ring body 31 along the circumferential direction.
In this embodiment, the bottom surface of the fixing ring 14 is a spherical convex structure, and the spherical convex structure guides the discharged air flow, so that the air flow smoothly flows out through the air outlet 232.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely for
To distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an easy radiating external rotor brushless DC motor, includes stator module (1) and rotor subassembly (2), stator module (1) includes cylindricality cover (11), is fixed in end panel (12) at cylindricality cover (11) top, be fixed in cylindricality cover (11) outlying winding structure (13) and with winding structure (13) electric connection's driver (15), rotor subassembly (2) including rotate the suit in pivot (21) of cylindricality cover (11) inner chamber, be fixed in carousel (22) of pivot (21) bottom, overlap in winding structure (13) is peripheral and bottom with carousel (22) top surface outer fringe fixed connection's cylindricality shell (23) and fix in along circumference a plurality of magnets (24) of cylindricality shell (23) internal perisporium, its characterized in that: cylindricality cover (11) outer wall correspond to cylindricality shell (23) top with fixed cover in position between end panel (12) the bottom surface is equipped with solid fixed ring (14), gu fixed ring (14) top surface be close to outer fringe position and be equipped with annular groove (142), driver (15) are located annular groove (142) inner chamber, cylindricality shell (23) inner chamber is close to the fixed cover in position on magnet (24) top is equipped with impeller (3), the top of cylindricality shell (23) lateral wall is equipped with a plurality of exhaust holes (232) along circumference, carousel (22) bottom surface is equipped with a plurality of inlet ports (223) along circumference, the inner edge of cylindricality shell (23) bottom can be dismantled and be fixed with annular filter (4).
2. The external rotor brushless dc motor easy to dissipate heat according to claim 1, wherein: the top of cylindricality cover (11) is equipped with annular plate (111), end panel (12) bottom surface middle part be equipped with annular plate (111) fixed cup joint circular recess (121) that match.
3. The external rotor brushless dc motor easy to dissipate heat according to claim 1, wherein: cylindricality cover (11) periphery wall is close to the top position and evenly is equipped with a plurality of vertical fixture blocks (112) along circumference, the center of solid fixed ring (14) be equipped with cylindricality cover (11) slip cup joint jack (141) of matcing, the internal perisporium of jack (141) along circumference be equipped with a plurality of with draw-in groove (143) that fixture block (112) joint matches.
4. The external rotor brushless dc motor easy to dissipate heat according to claim 1, wherein: the middle part of the inner peripheral wall of the cylindrical shell (23) is uniformly provided with a plurality of vertical strip-shaped convex parts (231) along the circumferential direction, and the magnet (24) is clamped between two adjacent strip-shaped convex parts (231).
5. The external rotor brushless dc motor easy to dissipate heat according to claim 1, wherein: the center of the top surface of the rotary disc (22) is provided with a slot (221) fixedly connected with the bottom end of the rotating shaft (21) in an inserting mode, an annular convex part (222) is arranged at the position, close to the outer edge, of the top surface of the rotary disc (22), and an annular concave part (233) fixedly sleeved and matched with the annular convex part (222) is arranged at the position, close to the outer edge, of the bottom surface of the cylindrical shell (23).
6. The external rotor brushless dc motor easy to dissipate heat of claim 5, wherein: the vane wheel (3) comprises an outer ring body (31) fixedly sleeved on the inner peripheral wall of the cylindrical shell (23) close to the top and vanes (32) uniformly and fixedly connected to the inner peripheral wall of the outer ring body (31) along the circumferential direction.
7. The external rotor brushless dc motor easy to dissipate heat of claim 3, wherein: the bottom surface of the fixing ring (14) is of a spherical convex surface structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222306684.0U CN218102886U (en) | 2022-08-31 | 2022-08-31 | Outer rotor direct current brushless motor easy to radiate heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222306684.0U CN218102886U (en) | 2022-08-31 | 2022-08-31 | Outer rotor direct current brushless motor easy to radiate heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218102886U true CN218102886U (en) | 2022-12-20 |
Family
ID=84449592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222306684.0U Active CN218102886U (en) | 2022-08-31 | 2022-08-31 | Outer rotor direct current brushless motor easy to radiate heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218102886U (en) |
-
2022
- 2022-08-31 CN CN202222306684.0U patent/CN218102886U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211266684U (en) | Permanent magnet motor with impeller arranged on end plate and electric vehicle using same | |
| CN204810016U (en) | Rotor, motor, pump and belt cleaning device | |
| CN108306453A (en) | A kind of motor and hair-dryer | |
| CN113572298A (en) | Motor assembly and hair dryer with same | |
| CN218102886U (en) | Outer rotor direct current brushless motor easy to radiate heat | |
| CN112383194A (en) | Self-cooling axial flux motor with built-in centrifugal fan | |
| CN204497884U (en) | Ceiling fan motor | |
| CN216599172U (en) | Rotor structure and axial magnetic field motor | |
| CN215344183U (en) | Stable efficient YE4 type three-phase asynchronous motor of winding heat dissipation | |
| CN202721588U (en) | Disc type permanent magnet brushless direct current motor with iron core-free and sensor-free properties | |
| CN110500317A (en) | A kind of fan assembling more flabellums | |
| CN109217544A (en) | Motor and the vehicle for using the motor | |
| GB2275829A (en) | Cooling commutated electric motors | |
| CN108649733B (en) | Motor with a motor housing | |
| CN206850544U (en) | A kind of combined blade switch reluctance machine rotor | |
| CN219843470U (en) | Forced air-cooled coreless axial magnetic field motor | |
| CN101350536A (en) | Core lamination stack structure of electric machine rotor | |
| CN219123991U (en) | Motor stator and motor | |
| CN114640218B (en) | Brushless motor and manufacturing method of coil thereof | |
| CN210404913U (en) | Motor with ventilation duct and without shell | |
| CA2321608A1 (en) | Electric fuel pump and pump mechanism for a fuel pump | |
| CN210724471U (en) | External rotor motor | |
| CN109787417A (en) | A kind of straight drive magnetic drive pump | |
| KR20160000375A (en) | Motor device improving fan structure of cooling fan | |
| CN218633476U (en) | Blower motor magnetic ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |