CN219960246U - Outer rotor motor for ceiling fan - Google Patents
Outer rotor motor for ceiling fan Download PDFInfo
- Publication number
- CN219960246U CN219960246U CN202320936808.5U CN202320936808U CN219960246U CN 219960246 U CN219960246 U CN 219960246U CN 202320936808 U CN202320936808 U CN 202320936808U CN 219960246 U CN219960246 U CN 219960246U
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- motor
- air inlet
- shell
- magnetism isolating
- inlet hole
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 13
- 230000005389 magnetism Effects 0.000 claims description 70
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 description 5
- 230000005855 radiation Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses an outer rotor motor for a ceiling fan, which is characterized in that the central axes of an upper air inlet hole II and a lower air inlet hole II are tangent to the rotation direction of a motor, so that the direction of air flow generated when the motor rotates is consistent with the direction of the upper air inlet hole II and the lower air inlet hole II, and the resistance of the motor rotation to the air flow is minimum at the moment, so that the air quantity of the upper air inlet hole II and the lower air inlet hole II can be increased, the heat dissipation efficiency is improved, the service life of the motor is prolonged, the use reliability of a motor product is ensured, and the maintenance cost of the motor is reduced; in addition, the central axes of the upper air inlet hole II and the lower air inlet hole II are tangential to the rotation direction of the motor, so that the backflow phenomenon of air flow can be avoided, and the stability and the flow efficiency of the air flow are improved.
Description
[ field of technology ]
The utility model relates to the technical field of motors, in particular to an outer rotor motor for a ceiling fan.
[ background Art ]
When the motor works, part of electric energy is converted into heat energy, and the existing motor shell is provided with heat dissipation holes correspondingly. However, the design of the radiating holes is not reasonable enough to cause the motor to be incapable of realizing the purpose of efficient heat radiation, the design is unfavorable for the timely and effective heat radiation of parts in the motor, and if the heat radiation does not reach the ideal effect, the problem that certain parts in the whole motor are damaged and the service life is influenced due to overhigh temperature is caused, so that the use reliability of the motor product is finally reduced, the maintenance cost of the motor is increased, and the market competitiveness is influenced.
The present utility model has been made in view of the above problems.
[ utility model ]
The utility model aims to overcome the defects of the prior art, and provides an outer rotor motor for a ceiling fan, which can solve the problems in the prior art.
The utility model is realized by the following technical scheme:
the outer rotor motor for the ceiling fan comprises a motor shaft 1, wherein a stator assembly 2 is relatively fixedly connected to the motor shaft 1, a rotor assembly 3 is rotatably arranged on the motor shaft 1, the rotor assembly 3 comprises a motor shell 31, the motor shell 31 comprises an upper shell 311 and a lower shell 312 which are rotatably arranged on the motor shaft 1, and the lower shell 312 is positioned at the lower side of the upper shell 311; the motor shell 31 is provided with a heat dissipation assembly 4, the heat dissipation assembly 4 comprises an upper air inlet hole I41 arranged on the upper shell 311, an upper wind shield 42 extending outwards from the outer surface of the upper shell 311 is arranged on the upper shell 311 and at the edge of the upper air inlet hole I41, an upper air inlet hole II 43 communicated with the upper air inlet hole I41 is formed between the upper wind shield 42 and the outer surface of the upper shell 311, and the central axis of the upper air inlet hole II 43 is tangential to the rotation direction of the motor; and/or the heat dissipation assembly 4 further comprises a first lower air inlet hole 44 arranged on the lower shell 312, a second lower air baffle 45 extending outwards from the outer surface of the lower shell 312 is arranged on the lower shell 312 and at the edge of the first lower air inlet hole 44, a second lower air inlet hole 46 communicated with the first lower air inlet hole 44 is formed between the second lower air baffle 45 and the outer surface of the lower shell 312, and the central axis of the second lower air inlet hole 46 is tangential to the rotation direction of the motor.
As described above, in the outer rotor motor for a ceiling fan, the upper wind guard 42 is inclined in the forward rotation direction of the motor, and the central axis of the upper air inlet hole two 43 is tangential to the forward rotation direction of the motor; the lower wind shield 45 is inclined towards the reverse rotation direction of the motor, and the central axis of the second lower air inlet hole 46 is tangential to the reverse rotation direction of the motor.
As described above, the number of the upper air inlet holes two 43 and the lower air inlet holes two 46 is an odd number.
As described above, the upper wind deflector 42 and the lower wind deflector 45 are arc-shaped and are inclined.
As described above, the outer rotor motor for a ceiling fan, the rotor assembly 3 further comprises a magnetism isolating ring 32 and a permanent magnet ring 33, the magnetism isolating ring 32 is relatively fixedly connected with the motor housing 31, the permanent magnet ring 33 is relatively fixedly arranged on the inner side wall of the magnetism isolating ring 32, and a magnetism isolating space 5 for reducing the contact area between the outer side wall of the magnetism isolating ring 32 and the inner side wall of the motor housing 31 is formed between the outer side wall of the magnetism isolating ring 32 and the inner side wall of the motor housing 31.
The outer rotor motor for the ceiling fan is characterized in that the magnetism isolating space 5 is a groove which is arranged in an annular mode.
In the outer rotor motor for a ceiling fan, the annular groove is formed on the outer side wall of the magnetism isolating ring 32.
The outer rotor motor for the ceiling fan, as described above, the rotor assembly 3 further comprises a magnetism isolating ring 32 and a permanent magnet ring 33, the magnetism isolating ring 32 is relatively fixedly connected with the motor housing 31, and the permanent magnet ring 33 is relatively fixedly arranged on the inner side wall of the magnetism isolating ring 32; an upper connecting structure 6 for relatively and fixedly connecting the upper shell 311 and the magnetism isolating ring 32 is arranged between the upper shell 311 and the magnetism isolating ring 32, and a lower connecting structure 7 for relatively and fixedly connecting the lower shell 312 and the magnetism isolating ring 32 is arranged between the lower shell 312 and the magnetism isolating ring 32.
As described above, the upper connection structure 6 includes an upper mounting hole 61 provided on the upper housing 311 and an upper connection hole 62 provided on the magnetism isolating ring 32 for aligning and connecting with the upper mounting hole 61, and an upper connection member 63 for fixedly connecting the upper housing 311 with respect to the magnetism isolating ring 32 is provided between the upper mounting hole 61 and the upper connection hole 62.
As described above, the outer rotor motor for a ceiling fan, the magnetism isolating ring 32 includes a magnetism isolating body 321, the magnetism isolating body 321 is provided with a connecting flange 322 capable of being connected and matched with the inner bottom wall of the motor housing 31, and the outer edge of the connecting flange 322 is provided with a connecting side 323 capable of being connected and matched with the peripheral wall of the motor housing 31.
Compared with the prior art, the utility model has the following advantages:
1. the central axes of the upper air inlet hole II and the lower air inlet hole II are tangent to the rotating direction of the motor, so that the air flow direction generated when the motor rotates is consistent with the directions of the upper air inlet hole II and the lower air inlet hole II, and the resistance of the motor rotation to the air flow is minimum at the moment, so that the air inlet quantity of the upper air inlet hole II and the lower air inlet hole II can be increased, the heat radiation efficiency is improved, the service life of the motor is prolonged, the use reliability of a motor product is ensured, and the maintenance cost of the motor is reduced; in addition, the central axes of the upper air inlet hole II and the lower air inlet hole II are tangential to the rotation direction of the motor, so that the backflow phenomenon of air flow can be avoided, and the stability and the flow efficiency of the air flow are improved.
2. In order to enable the motor to rotate in the forward direction or in the reverse direction, the heat dissipation assembly can achieve the effect of forced ventilation and heat dissipation, the upper wind shield is inclined towards the forward rotation direction of the motor, and the central axis of the upper air inlet hole II is tangential to the forward rotation direction of the motor; the lower wind shield inclines towards the reverse rotation direction of the motor, and the central axis of the lower air inlet hole II is tangential to the reverse rotation direction of the motor.
3. In order to better block the air flow and improve the efficiency of the air flow entering the inner cavity of the motor shell, the upper wind shield and the lower wind shield are in arc shapes which are obliquely arranged.
4. The magnetic isolation space for reducing the contact area between the outer side wall of the magnetic isolation ring and the inner side wall of the motor shell is formed between the outer side wall of the magnetic isolation ring and the inner side wall of the motor shell, namely, the contact area between the outer side wall of the magnetic isolation ring and the inner side wall of the motor shell can be reduced, so that the transmission medium between the magnetic isolation ring and the motor shell is reduced, and the magnetic leakage is further reduced, so that the stator and the rotor are ensured to have proper magnetic flux density, the working efficiency of the motor is ensured, and the working stability and reliability of the motor are ensured.
5. The upper shell and the magnetism isolating ring are fixedly connected by the upper connecting structure, the lower shell and the magnetism isolating ring are fixedly connected by the lower connecting structure, and the upper shell and the lower shell can be fixedly connected by the magnetism isolating ring respectively.
[ description of the drawings ]
The utility model is described in further detail below with reference to the attached drawing figures, wherein:
fig. 1 is a perspective view of the present utility model.
Fig. 2 is one of the sectional views of the present utility model.
FIG. 3 is a second cross-sectional view of the present utility model.
Fig. 4 is an exploded view of the present utility model.
Fig. 5 is a top view of the upper housing of the present utility model.
Fig. 6 is a schematic structural diagram of a heat dissipating assembly according to the present utility model.
[ detailed description ] of the utility model
Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1-6, the outer rotor motor for the ceiling fan of the utility model comprises a motor shaft 1, wherein a stator assembly 2 is relatively fixedly connected to the motor shaft 1, a rotor assembly 3 is rotatably arranged on the motor shaft 1, the rotor assembly 3 comprises a motor shell 31, the motor shell 31 comprises an upper shell 311 and a lower shell 312 which are rotatably arranged on the motor shaft 1, and the lower shell 312 is positioned at the lower side of the upper shell 311; the motor shell 31 is provided with a heat dissipation assembly 4, the heat dissipation assembly 4 comprises an upper air inlet hole I41 arranged on the upper shell 311, an upper wind shield 42 extending outwards from the outer surface of the upper shell 311 is arranged on the upper shell 311 and at the edge of the upper air inlet hole I41, an upper air inlet hole II 43 communicated with the upper air inlet hole I41 is formed between the upper wind shield 42 and the outer surface of the upper shell 311, and the central axis of the upper air inlet hole II 43 is tangential to the rotation direction of the motor; and/or the heat dissipation assembly 4 further comprises a first lower air inlet hole 44 arranged on the lower shell 312, a second lower air baffle 45 extending outwards from the outer surface of the lower shell 312 is arranged on the lower shell 312 and at the edge of the first lower air inlet hole 44, a second lower air inlet hole 46 communicated with the first lower air inlet hole 44 is formed between the second lower air baffle 45 and the outer surface of the lower shell 312, and the central axis of the second lower air inlet hole 46 is tangential to the rotation direction of the motor. The central axes of the upper air inlet hole II and the lower air inlet hole II are tangent to the rotating direction of the motor, so that the air flow direction generated when the motor rotates is consistent with the directions of the upper air inlet hole II and the lower air inlet hole II, and the resistance of the motor rotation to the air flow is minimum at the moment, so that the air inlet quantity of the upper air inlet hole II and the lower air inlet hole II can be increased, the heat radiation efficiency is improved, the service life of the motor is prolonged, the use reliability of a motor product is ensured, and the maintenance cost of the motor is reduced; in addition, the central axes of the upper air inlet hole II and the lower air inlet hole II are tangential to the rotation direction of the motor, so that the backflow phenomenon of air flow can be avoided, and the stability and the flow efficiency of the air flow are improved.
In the utility model, as shown in fig. 1, when the motor rotates in the forward direction, the surface of the upper air inlet hole II is a windward surface; when the motor rotates reversely, the surface where the lower air inlet hole II is positioned is a windward surface so as to improve the air inlet quantity.
Preferably, the second upper air inlet 43 is eccentrically disposed on the upper surface of the upper housing 311, and the second lower air inlet 46 is eccentrically disposed on the lower surface of the lower housing 312.
In order to enable the motor to rotate in the forward direction or in the reverse direction, the heat dissipation assembly can achieve the effect of forced ventilation and heat dissipation, the upper wind shield 42 is inclined towards the forward rotation direction of the motor, and the central axis of the upper air inlet hole II 43 is tangential to the forward rotation direction of the motor; the lower wind shield 45 is inclined towards the reverse rotation direction of the motor, and the central axis of the second lower air inlet hole 46 is tangential to the reverse rotation direction of the motor. When the motor rotates positively, the external air flow is blocked by the upper wind shield 42 and enters the inner cavity of the motor housing from the upper air inlet hole II 43 and the upper air inlet hole I41, and at the moment, the air flow in the inner cavity of the motor housing can flow out from the lower air inlet hole I44 and the lower air inlet hole II 46. When the motor rotates in the reverse direction, the airflow flowing direction is opposite to that when the motor rotates in the forward direction.
Further, the number of the upper air inlet holes two 43 and the lower air inlet holes two 46 is an odd number.
The upper and lower windshields 42, 45 are arc-shaped in an inclined arrangement for better blocking of the airflow to increase the efficiency of the airflow into the interior cavity of the motor housing.
The rotor assembly 3 further comprises a magnetism isolating ring 32 and a permanent magnet ring 33, the magnetism isolating ring 32 is connected with the motor shell 31 in a relatively fixed manner, the permanent magnet ring 33 is arranged on the inner side wall of the magnetism isolating ring 32 in a relatively fixed manner, a magnetism isolating space 5 for reducing the contact area between the outer side wall of the magnetism isolating ring 32 and the inner side wall of the motor shell 31 is formed between the outer side wall of the magnetism isolating ring 32 and the inner side wall of the motor shell 31, namely, the contact area between the outer side wall of the magnetism isolating ring and the inner side wall of the motor shell can be reduced, so that a transmission medium between the magnetism isolating ring and the motor shell is reduced, magnetic leakage is further reduced, the stator and the rotor are ensured to have proper magnetic flux density, the working efficiency of the motor is ensured, and the working stability and reliability of the motor are ensured.
In order to further weaken the magnetization of the permanent magnet to the motor housing, and ensure that the stator and the rotor have proper magnetic flux density, the magnetism isolating space 5 is a groove which is arranged in an annular shape.
The annular grooves are formed in the outer side wall of the magnetism isolating ring 32, so that the distance between the outer side wall of the magnetism isolating ring and the inner side wall of the motor shell in the magnetism isolating space can be increased while the weight of the magnetism isolating ring can be reduced, the magnetization of the permanent magnet to the motor shell is weakened, and the working efficiency of the motor is improved.
The rotor assembly 3 further comprises a magnetism isolating ring 32 and a permanent magnet ring 33, wherein the magnetism isolating ring 32 is relatively fixedly connected with the motor shell 31, and the permanent magnet ring 33 is relatively fixedly arranged on the inner side wall of the magnetism isolating ring 32; the upper connecting structure 6 for relatively and fixedly connecting the upper shell 311 and the magnetism isolating ring 32 is arranged between the upper shell 312 and the magnetism isolating ring 32, and the lower connecting structure 7 for relatively and fixedly connecting the lower shell 312 and the magnetism isolating ring 32 is arranged between the upper shell and the magnetism isolating ring, so that the upper shell and the lower shell can be respectively and relatively and fixedly connected with each other, the problems that in the prior art, a strip bolt is needed to be adopted to penetrate through the upper shell and the lower shell at the same time so as to fixedly connect the upper shell and the lower shell, and the manufacturing cost is high are solved.
For the purpose of firm connection, the upper connection structure 6 includes an upper mounting hole 61 provided on the upper housing 311 and an upper connection hole 62 provided on the magnetism isolating ring 32 and used for aligned connection with the upper mounting hole 61, and an upper connection member 63 for fixedly connecting the upper housing 311 with respect to the magnetism isolating ring 32 is provided between the upper mounting hole 61 and the upper connection hole 62. In the present embodiment, the upper mounting hole 61 is a through hole, the upper connecting hole 62 is a threaded hole, the upper connecting piece 63 is a screw, and when assembling, the upper mounting hole 61 and the upper connecting hole 62 are aligned and connected, then the connecting end of the upper connecting piece 63 passes through the upper mounting hole 61 to be in threaded connection with the upper connecting hole 62, and further the upper casing is fixedly connected relative to the magnetism isolating ring, so that assembling is convenient. Wherein the lower connection structure 7 is identical to the upper connection structure 6 and will not be described here.
In order to improve the structural stability between the magnetism isolating ring and the motor housing, the magnetism isolating ring 32 comprises a magnetism isolating body 321, a connecting convex edge 322 capable of being connected and matched with the inner bottom wall of the motor housing 31 is arranged on the magnetism isolating body 321, and a connecting side edge 323 capable of being connected and matched with the peripheral wall of the motor housing 31 is arranged at the outer edge of the connecting convex edge 322.
Claims (10)
1. The outer rotor motor for the ceiling fan is characterized by comprising a motor shaft (1), wherein a stator assembly (2) is relatively fixedly connected to the motor shaft (1), a rotor assembly (3) is rotatably arranged on the motor shaft (1), the rotor assembly (3) comprises a motor shell (31), the motor shell (31) comprises an upper shell (311) and a lower shell (312) which are rotatably arranged on the motor shaft (1), and the lower shell (312) is positioned on the lower side of the upper shell (311); the motor comprises a motor shell (31), and is characterized in that a heat radiating assembly (4) is arranged on the motor shell (31), the heat radiating assembly (4) comprises an upper air inlet hole I (41) arranged on an upper shell (311), an upper wind shield (42) which extends outwards from the outer surface of the upper shell (311) is arranged on the upper shell (311) and at the edge of the upper air inlet hole I (41), an upper air inlet hole II (43) communicated with the upper air inlet hole I (41) is formed between the upper wind shield (42) and the outer surface of the upper shell (311), and the central axis of the upper air inlet hole II (43) is tangential to the rotating direction of the motor; and/or the heat dissipation assembly (4) further comprises a lower air inlet hole I (44) arranged on the lower shell (312), a lower wind shield (45) extending outwards from the outer surface of the lower shell (312) is arranged on the lower shell (312) and at the edge of the lower air inlet hole I (44), a lower air inlet hole II (46) communicated with the lower air inlet hole I (44) is formed between the lower wind shield (45) and the outer surface of the lower shell (312), and the central axis of the lower air inlet hole II (46) is tangential to the rotation direction of the motor.
2. The outer rotor motor for the ceiling fan according to claim 1, wherein the upper wind shield (42) is inclined towards the forward rotation direction of the motor, and the central axis of the upper air inlet hole II (43) is tangential to the forward rotation direction of the motor; the lower wind shield (45) is inclined towards the reverse rotation direction of the motor, and the central axis of the lower air inlet hole II (46) is tangential to the reverse rotation direction of the motor.
3. The external rotor motor for a ceiling fan according to claim 1, wherein the number of the upper air inlet holes II (43) and the lower air inlet holes II (46) is an odd number.
4. The outer rotor motor for a ceiling fan according to claim 1, wherein the upper wind deflector (42) and the lower wind deflector (45) are arc-shaped and are arranged obliquely.
5. The outer rotor motor for a ceiling fan according to any one of claims 1 to 4, wherein the rotor assembly (3) further comprises a magnetism isolating ring (32) and a permanent magnet ring (33), the magnetism isolating ring (32) is relatively fixedly connected with the motor housing (31), the permanent magnet ring (33) is relatively fixedly arranged on the inner side wall of the magnetism isolating ring (32), and a magnetism isolating space (5) for reducing the contact area between the outer side wall of the magnetism isolating ring (32) and the inner side wall of the motor housing (31) is formed between the outer side wall of the magnetism isolating ring (32) and the inner side wall of the motor housing (31).
6. The outer rotor motor for a ceiling fan according to claim 5, wherein the magnetism isolating space (5) is a groove arranged in an annular shape.
7. The outer rotor motor for a ceiling fan according to claim 6, wherein the annular groove is formed in the outer side wall of the magnetism isolating ring (32).
8. The outer rotor motor for a ceiling fan according to any one of claims 1 to 4, characterized in that the rotor assembly (3) further comprises a magnetism isolating ring (32) and a permanent magnet ring (33), the magnetism isolating ring (32) is relatively fixedly connected with the motor housing (31), and the permanent magnet ring (33) is relatively fixedly arranged on the inner side wall of the magnetism isolating ring (32); an upper connecting structure (6) for relatively and fixedly connecting the upper shell (311) and the magnetism isolating ring (32) is arranged between the upper shell (312) and the magnetism isolating ring (32), and a lower connecting structure (7) for relatively and fixedly connecting the lower shell (312) and the magnetism isolating ring (32) is arranged between the upper shell and the magnetism isolating ring.
9. The outer rotor motor for a ceiling fan according to claim 8, wherein the upper connecting structure (6) comprises an upper mounting hole (61) formed in the upper housing (311) and an upper connecting hole (62) formed in the magnetism isolating ring (32) and used for being aligned and connected with the upper mounting hole (61), and an upper connecting piece (63) used for fixedly connecting the upper housing (311) relative to the magnetism isolating ring (32) is arranged between the upper mounting hole (61) and the upper connecting hole (62).
10. The outer rotor motor for the ceiling fan according to claim 8, wherein the magnetism isolating ring (32) comprises a magnetism isolating body (321), a connecting convex edge (322) capable of being connected and matched with the inner bottom wall of the motor shell (31) is arranged on the magnetism isolating body (321), and a connecting side edge (323) capable of being connected and matched with the peripheral wall of the motor shell (31) is arranged at the outer edge of the connecting convex edge (322).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320936808.5U CN219960246U (en) | 2023-04-22 | 2023-04-22 | Outer rotor motor for ceiling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320936808.5U CN219960246U (en) | 2023-04-22 | 2023-04-22 | Outer rotor motor for ceiling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219960246U true CN219960246U (en) | 2023-11-03 |
Family
ID=88538897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320936808.5U Active CN219960246U (en) | 2023-04-22 | 2023-04-22 | Outer rotor motor for ceiling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219960246U (en) |
-
2023
- 2023-04-22 CN CN202320936808.5U patent/CN219960246U/en active Active
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