TWI599153B - Ceiling fan and motor thereof - Google Patents

Description

Ceiling fan and its motor

The present invention relates to a ceiling fan and a motor thereof, and more particularly to a ceiling fan motor having a sleeve rotatable relative to a boom, and a ceiling fan provided with the ceiling fan motor.

Referring to FIG. 1, a conventional ceiling fan 9 includes a boom 91 and a rotor 92, a ball bearing 93, a stator 94, and a plurality of blades 95. The boom 91 is coupled to the outer periphery of the ball bearing 93. The rotor 92 has a hub 921 disposed on the outer circumference of the ball bearing 93 such that the hub 921 is rotatably coupled to the boom 91. The stator 94 is fixed to the boom 91. The plurality of blades 95 are coupled to the hub 921 such that when the hub 921 is rotated relative to the boom 91, the plurality of blades 95 can be used to drive air to generate airflow. An embodiment of the conventional ceiling fan 9 has been disclosed in the Patent Case No. I326959 of the Republic of China, "DC Brushless Motor Fixing and Rotor Improvement for Ceiling Fans".

In detail, the ball bearing 93 includes an inner ring member 931 and an outer ring member 932. The inner ring member 931 is coupled to the outer circumference of the boom 91, and the outer ring member 932 is coupled to the hub 921. The outer ring member 932 is rotatable relative to the inner ring member 931, so that the hub 921 can be rotatably coupled to the boom 91.

Wherein, the overall size of the ceiling fan 9 is large, so the rotor 92 has a heavier weight, and the rotor 92 combines the plurality of blades 95 such that the overall weight of the ball bearing 93 is heavy. Accordingly, when the ball bearing 93 is aged due to long-term use, or the conventional ceiling fan 9 is subjected to an improper external force, there is a risk that the outer ring member 932 is collapsed by the ball bearing 93. Once the outer ring member 932 has collapsed, the hub 921 will directly contact the stator 94, possibly for the purpose of this application. The ceiling fan 9 causes damage that cannot be recovered. Moreover, the stator 94 is not designed for load bearing, and thus it is more likely to create a dangerous situation in which the stator 94 cannot withstand the impact of the rotor 92, causing the rotor 92 to fall directly along with the blades 95.

In view of this, it is urgent to provide a further improved ceiling fan to enhance the safety of the ceiling fan.

An object of the present invention is to provide a ceiling fan and a motor thereof, including a boom, a ball bearing and a rotor for utilizing the boom or the inner ring of the ball bearing when the ball bearing accidentally collapses outside the ring member The piece cushions the force of the rotor falling.

In order to achieve the foregoing object, the technical method of the present invention includes: a ceiling fan motor comprising: a boom, the two ends of which are a first end and a second end, respectively, the outer circumference of the boom The surface of the enlarged diameter portion has a shoulder on one side of the first end portion, and a stopper is disposed on the outer circumference of the enlarged diameter portion, the stopper has a maximum outer diameter; a ball a bearing, the ball bearing includes an inner ring member and an outer ring member, the inner ring member is coupled to the outer peripheral surface of the boom, and the inner ring member abuts the shoulder portion, and the outer diameter of the stopper member is larger than the inner portion An outer diameter of the ring member; a rotor, the rotor includes a sleeve, the inner surface of the sleeve is coupled to the outer ring member, the sleeve is provided with a fastening portion, the abutting portion abuts the outer ring member toward the first portion a side surface of one end portion; and a stator coupled to the second end portion of the boom; wherein an outer circumferential surface of the boom and the inner ring are in a direction perpendicular to an axial direction of the boom The combined portion has a diameter, the sleeve has a minimum aperture that is greater than the diameter, the boom or Ball bearing inner ring member having a maximum outer diameter, the minimum pore size is smaller than the maximum outer diameter.

A ceiling fan motor according to another embodiment of the present invention, wherein a center of the sleeve is provided with a constant hole, and the boom passes through the through hole, and the sleeve is provided with a stopping portion, and the stopping portion extends beyond the through hole a retaining portion having the smallest aperture toward a surface of the through hole. Thereby, the stopping portion will overlap the inner ring member or the shoulder portion in the axial direction even if the outer ring member is collapsed by the ball bearing The retaining portion will contact the inner ring member or the shoulder to cushion the force of the rotor from falling.

a ceiling fan motor as described above, wherein an outer diameter of the enlarged diameter portion is smaller than an outer diameter of the inner ring member, the inner ring member having the maximum outer diameter, whereby the minimum outer diameter will be smaller than the maximum outer diameter, The stop overlaps the inner ring member in the axial direction.

In the ceiling fan motor as described above, the blocking portion is a ring-shaped protrusion, and the protrusion is coupled to the inner surface of the sleeve or integrally formed with the sleeve. Thereby, the stopping portion can extend beyond the through hole toward the through hole, and the hole diameter of the hole around the surface of the through hole is the minimum hole diameter.

The ceiling fan motor as described above, wherein the blocking portion is a plurality of spaced apart bumps respectively coupled to the inner surface of the sleeve or integrally formed with the sleeve. Thereby, the stopping portion can extend beyond the through portion toward the through hole, so that the aperture of each of the protrusions facing the surface of the through hole is still the minimum aperture.

A ceiling fan motor according to still another embodiment of the present invention, wherein the boom is provided with a stopper on an outer circumference of the enlarged diameter portion, and an outer diameter of the stopper of the hanger is larger than an outer diameter of the inner ring member, and the hanger The stop has the largest outer diameter. Thereby, the abutting portion will overlap the stopper in the axial direction, and even if the outer ring member is collapsed by the ball bearing, the abutting portion will contact the stopper to cushion the force of the rotor falling.

a ceiling fan motor as described above, wherein the yoke has the smallest aperture toward a surface of the through hole, whereby the minimum aperture will be smaller than the maximum outer diameter, the yoke is in the axial direction and the hoist The stoppers of the rods overlap.

In the ceiling fan motor as described above, the stopper of the boom is a ring-shaped projection, and the projection is coupled to the outer circumference of the enlarged diameter portion or integrally formed with the enlarged diameter portion. Thereby, the stopper can protrude from the outer circumference of the enlarged diameter portion, and the outer diameter of the stopper of the boom is the maximum outer diameter.

The ceiling fan motor as described above, wherein the enlarged diameter portion is provided with a plurality of fixing holes, each of the fixing holes is configured to be coupled with a rod member, each of the rod members protruding from the outer circumference of the enlarged diameter portion, and the protruding portion is sleeved into the hanging portion The rod abuts against each of the rods protruding from the outer circumference of the enlarged diameter portion to form a joint on the outer circumference of the enlarged diameter portion. Thereby, the stopper of the boom can be snap-fitted to the outer circumference of the enlarged diameter portion.

In the ceiling fan motor as described above, the stopper of the boom is a plurality of spaced apart bumps, and the plurality of bumps are respectively coupled to the outer circumference of the enlarged diameter portion or integrally formed with the enlarged diameter portion. Thereby, the stopper can protrude from the outer circumference of the enlarged diameter portion, and the outer diameter of the circumferential surface formed by the outer surface of each of the protrusions is still the maximum outer diameter.

A ceiling fan motor according to another embodiment of the present invention, wherein the outer peripheral surface of the boom is provided with an enlarged diameter portion and a gasket disposed between the ball bearing and the enlarged diameter portion, the shoulder portion being formed on the shoulder portion The spacer is disposed on one side of the first end portion, and the auxiliary rod is further provided with an auxiliary bearing between the spacer and the enlarged diameter portion, and the auxiliary bearing of the suspension rod comprises an auxiliary inner ring member and an auxiliary outer ring The auxiliary inner ring member abuts the spacer and the enlarged diameter portion respectively, and the outer diameter of the auxiliary outer ring member is larger than the outer diameter of the enlarged diameter portion and the outer diameter of the inner ring member, so that the auxiliary rod is assisted The auxiliary outer ring member of the bearing has the largest outer diameter. Thereby, the abutting portion will overlap the auxiliary outer ring member in the axial direction, and even if the outer ring member is collapsed by the ball bearing, the abutting portion will contact the auxiliary outer ring member to buffer the rotor falling. In addition, if the outer ring member collapses during rotation, the auxiliary outer ring member will allow the sleeve to continue to rotate to reduce the stress experienced by the rotor when it contacts the auxiliary outer ring member.

a ceiling fan motor as described above, wherein the yoke has the smallest aperture toward a surface of the through hole, whereby the minimum aperture will be smaller than the maximum outer diameter, the yoke is in the axial direction and the hoist The auxiliary outer ring of the auxiliary bearing of the rod overlaps.

In the ceiling fan motor of each embodiment of the present invention, another ball bearing is included, the other ball bearing includes an inner ring member and an outer ring member, and the enlarged diameter portion forms another shoulder toward one side of the second end portion. The inner ring member of the other ball bearing is coupled to the outer peripheral surface of the boom and abuts the other shoulder. The rotor is provided with an elastic member, and the elastic member abuts the outer ball bearing and the outer ring member faces the outer ring member. One side surface of the second end. Thereby, the elastic member and the other shoulder of the boom can provide a pre-pressure to the other ball bearing from the axial sides; on the other hand, by providing the other ball The bearing, if the ring member collapses outside the ball bearing, the other ball bearing can still provide a supporting force to maintain the relative position of the sleeve and the boom to assist in buffering the force of the rotor falling.

In the ceiling fan motor of each embodiment of the present invention, the diameter of the boom is larger than the inner diameter of the inner ring member. Thereby, the inner ring member can be tightly coupled with the boom, so that the inner ring member can be firmly coupled to the outer peripheral surface of the boom.

A ceiling fan is provided with the ceiling fan motor of each of the embodiments described above, wherein the rotor includes a hub coupled to the side of the sleeve away from the one of the abutments, and the hub incorporates a plurality of blades.

According to the foregoing structure, the ceiling fan and the motor thereof according to the embodiments of the present invention can be provided with a sleeve by the rotor, and the minimum diameter of the sleeve is smaller than the maximum outer diameter of the inner ring member of the boom or the ball bearing. When the outer ring member of the ball bearing collapses, the boom or the inner ring member is used to buffer the force of the rotor falling, and the rotor is prevented from directly contacting the member in the stator to reduce the pair when the outer ring member accidentally collapses. The damage caused by the ceiling fan motor prevents the rotor from falling, and has the safety effect of improving the use of the ceiling fan.

〔this invention〕

1‧‧‧Boom

1a‧‧‧First end

1b‧‧‧second end

11‧‧‧ shoulder

11’‧‧‧Shoulder

12‧‧‧Extended section

121‧‧‧Fixed holes

13‧‧‧stops

13a‧‧‧Bumps

14‧‧‧ rods

15‧‧‧shims

16‧‧‧Auxiliary bearing

161‧‧‧Auxiliary inner ring parts

162‧‧‧Auxiliary outer ring parts

2‧‧‧Ball bearings

2'‧‧‧ Ball Bearings

21‧‧‧ Inner ring

21’‧‧‧ Inner ring

22‧‧‧Outer ring

22’‧‧‧Outer ring

23‧‧‧ balls

23’‧‧· balls

3‧‧‧Rotor

31‧‧‧ casing

311‧‧‧through holes

312‧‧‧Relief Department

313‧‧‧stops

313a‧‧‧Bumps

32‧‧·wheels

33‧‧‧Permanent magnet set

34‧‧‧Flexible parts

4‧‧‧ Stator

41‧‧‧ iron core

42‧‧‧ coil

X‧‧‧ axial

R1‧‧‧ diameter

R2‧‧‧Minimum aperture

R3‧‧‧Maximum outer diameter

[study]

9‧‧‧ Ceiling fan

91‧‧‧Boom

92‧‧‧Rotor

921‧‧ wheels

93‧‧‧Ball bearings

931‧‧‧ Inner ring

932‧‧‧Outer ring

94‧‧‧ Stator

95‧‧‧ leaves

Fig. 1 is a cross-sectional view showing the structure of a conventional ceiling fan.

Fig. 2 is a schematic exploded view showing the structure of the first embodiment of the present invention.

Fig. 3 is a cross-sectional view showing the structure of the first embodiment of the present invention.

Fig. 4 is an exploded perspective view showing the structure of the stopper portion of the first embodiment of the present invention including a plurality of bumps.

Fig. 5 is a schematic exploded view showing the second embodiment of the present invention.

Figure 6 is a cross-sectional view showing the structure of a second embodiment of the present invention.

Fig. 7 is a structural exploded view showing the stopper of the second embodiment of the present invention comprising a plurality of bumps.

Fig. 8 is an exploded perspective view showing the structure in which the stopper of the second embodiment of the present invention is coupled to the outer periphery of the enlarged diameter portion.

Fig. 9 is a cross-sectional view showing the structure in which the stopper of the second embodiment of the present invention is coupled to the outer periphery of the enlarged diameter portion.

Fig. 10 is a cross-sectional view showing the structure of a third embodiment of the present invention.

The above and other objects, features and advantages of the present invention will become more <RTIgt; A ceiling fan motor according to a first embodiment of the present invention includes a boom 1, a ball bearing 2, a rotor 3, and a stator 4. The ball bearing 2 and the stator 4 are respectively coupled to the boom 1, and the rotor 3 is coupled to the ball bearing 2.

The two ends of the boom 1 in an axial direction X are respectively a first end portion 1a and a second end portion 1b. The boom 1 has a shoulder portion 11 facing the first end portion 1a. The outer peripheral surface of the boom 1 is preferably provided with an enlarged diameter portion 12, and the shoulder portion 11 may be formed on one side of the enlarged diameter portion 12 toward the first end portion 1a. The enlarged diameter portion 12 may be integrally formed on the boom 1; or the enlarged diameter portion 12 may be a separate member sleeved on the outer peripheral surface of the boom 1 to join the boom 1 and form the shoulder 11.

The ball bearing 2 includes an inner ring member 21 and an outer ring member 22. A plurality of balls 23 may be disposed between the inner ring member 21 and the outer ring member 22 to enable the outer ring member 22 to be opposite to the inner ring member 21. Rotate. The inner ring member 21 is coupled to the outer peripheral surface of the boom 1, and the inner ring member 21 abuts the shoulder portion 11, and the shoulder portion 11 does not contact the outer ring member 22.

The rotor 3 includes a sleeve 31 having a constant hole 311 in the center thereof, and the through hole 311 extends through the sleeve 31 along the axial direction X. The boom 1 passes through the through hole 311 such that at least a portion of the boom 1 overlaps the sleeve 31 in a direction perpendicular to the axial direction X, and the inner surface of the sleeve 31 is coupled to the outer ring member 22. The sleeve 31 is provided with a fixing portion 312, and the fixing portion 312 faces The through hole 311 extends, the abutting portion 312 abuts a side surface of the outer ring member 22 facing the first end portion 1a, and the abutting portion 312 does not contact the inner ring member 21. Thereby, the yoke portion 312 and the shoulder portion 11 of the boom 1 can provide a pre-pressure to the ball bearing 2 from both sides of the axial direction X. The rotor 3 may further include a hub 32 coupled to one side of the sleeve 3 away from the abutting portion 312. The inner surface of the hub 32 may be provided with a permanent magnet group 33.

The stator 4 can be coupled to the second end 1b of the boom 1. The stator 4 may include an iron core 41, an air gap is formed between the iron core 41 and the permanent magnet group 33 of the rotor 3, and a coil 42 may be wound around the outer circumference of the iron core 41.

A portion of the outer peripheral surface of the boom 1 that is coupled to the inner ring member 21 has a diameter R1 in a direction perpendicular to the axial direction X, and the diameter R1 is generally slightly greater than or equal to the inner ring member 21 of the ball bearing 2. The inner diameter allows the inner ring member 21 to be firmly coupled to the outer peripheral surface of the boom 1, for example, when the diameter R1 is larger than the inner diameter of the inner ring member 21, the inner ring member 21 can be attached to the boom 1 forms a tight fit. The sleeve 31 has a minimum aperture R2 in a direction perpendicular to the axial direction X, and the inner ring member 21 of the boom 1 or the ball bearing 2 has a maximum outer diameter R3 in a direction perpendicular to the axial direction X. . However, in some embodiments of the present invention, the diameter R1 may also be slightly smaller than the inner diameter of the inner ring member 21 of the ball bearing 2, and the glue is dispensed between the outer circumferential surface of the boom 1 and the inner ring member 21. The inner ring member 21 is formed to be firmly coupled to the outer peripheral surface of the boom 1 by providing an additional joint structure or the like.

Wherein the minimum aperture R2 is greater than the diameter R1 such that the boom 1 can pass through the sleeve 31 and be spaced from the sleeve 31. Further, the maximum outer diameter R3 is the larger of the maximum outer diameter of the portion of the boom 1 overlapping the sleeve 31 and the maximum outer diameter of the inner ring member 21. The minimum aperture R2 is smaller than the maximum outer diameter R3; in other words, the position of the sleeve 31 having the minimum aperture R2 will be in the axial direction X and the position of the boom 1 or the inner ring member 21 having the maximum outer diameter R3. overlapping. The position of the sleeve 31 having the minimum aperture R2 is a first position, and the position of the boom 1 or the inner ring member 21 having the maximum outer diameter R3 is a second position, the first position Located above the second position in the axial direction X; in other words, the vertical height of the first position is higher than the second position.

In more detail, in the embodiment, the sleeve 31 is provided with a stopping portion 313, and the stopping portion 313 is located between the fixing portion 312 and the first end portion 1a of the boom 1, and the blocking portion The stopping portion 313 extends beyond the through hole 311 toward the through hole 311. Accordingly, the aperture of the hole surrounded by the stop portion 313 toward the surface of the through hole 311 is the minimum aperture R2. On the other hand, although the portion of the boom 1 overlapping the sleeve 31 is provided with the enlarged diameter portion 12, the outer diameter of the enlarged diameter portion 12 may be smaller than the outer diameter of the inner ring member 21, and thus the inner ring member 21 The outer diameter is the maximum outer diameter R3. By making the minimum aperture R2 smaller than the maximum outer diameter R3, the stopper portion 313 will overlap the inner ring member 21 in the axial direction X.

In this embodiment, the blocking portion 313 may be a single protrusion in a loop shape, and the protrusion may be coupled to the inner surface of the sleeve 31 or integrally formed with the sleeve 31; however, please Referring to FIG. 4, in some embodiments of the present invention, the blocking portion 313 may also be a plurality of spaced apart bumps 313a, and the aperture of each of the bumps 313a facing the surface of the through hole 311 is still For the minimum aperture R2, the plurality of bumps 313a may also be respectively coupled to the inner surface of the sleeve 31 or integrally formed with the sleeve 31.

When the ceiling fan motor of the first embodiment of the present invention is actually operated, the first end portion 1a of the boom 1 can be coupled to a predetermined position such as a ceiling or a wall to fix the ceiling fan motor. Since the boom 1 and the sleeve 31 of the rotor 3 are respectively coupled to the inner ring member 21 and the outer ring member 22 of the ball bearing 2, the rotor 3 can be rotatably coupled to the boom 1. The stator 4 can generate magnetic interference with the permanent magnet group 33 of the rotor 3 after the coil 42 is energized to drive the hub 32 and the sleeve 31 to rotate. The hub 32 can also incorporate a plurality of blades (not shown) such that the ceiling fan motor of the first embodiment can form a ceiling fan to utilize the blade to drive air to generate airflow.

With the above structure, the ceiling fan motor of the first embodiment of the present invention is provided with the sleeve 31, and the minimum aperture R2 of the sleeve 31 is larger than the inside of the boom 1 or the ball bearing 2 The maximum outer diameter R3 of the ring member 21 enables the stopper portion 313 to overlap the inner ring member 21 or the shoulder portion 11 in the axial direction X. According to this, even if the outer ring member 22 is collapsed by the ball bearing 2, the stopper portion 313 will contact the inner ring member 21 or the shoulder portion 11 to buffer the force of the rotor 3 falling, and avoid the rotor 3 directly. Contact with members of the stator 4 to reduce damage to the ceiling fan motor.

Furthermore, both the ball bearing 2 and the boom 1 are designed to bear the load. Therefore, the material and structural strength of the ball bearing 2 and the boom 1 are better than that of the stator 4, and the impact of the rotor 3 can be effectively withstood. It is avoided that the rotor 3 falls.

It should be noted that in the present embodiment, another ball bearing 2' may be included, and the other ball bearing 2' also includes an inner ring member 21' and an outer ring member 22'. The enlarged diameter portion 12 may further form a further shoulder portion 11' toward one side of the second end portion 1b, and the inner ring member 21' of the other ball bearing 2' is coupled to the outer peripheral surface of the boom 1 and abuts The other shoulder 11'. The rotor 3 is provided with an elastic member 34 coupled to the hub 32 or the sleeve 31, and the elastic member 34 abuts the other ball bearing 2' and the ring member 22' faces the second end portion 1b. One side of the surface. Thereby, the elastic member 34 and the other shoulder portion 11' of the boom 1 can provide a preload to the other ball bearing 2' from both sides of the axial direction X. By providing the other ball bearing 2', if the ring member 22 is collapsed outside the ball bearing 2, the other ball bearing 2' can still provide a supporting force to maintain the sleeve 31 opposite to the boom 1. The position is to assist in buffering the force of the rotor 3 falling.

Referring to Figures 5 and 6, the ceiling fan motor according to the second embodiment of the present invention is different from the first embodiment in that the boom 1 is further provided with a stopper on the outer circumference of the enlarged diameter portion 12. 13. The outer diameter of the stopper 13 of the boom 1 is larger than the outer diameter of the inner ring member 21, so that the outer diameter of the stopper 13 is the maximum outer diameter R3. Thereby, by making the minimum aperture R2 smaller than the maximum outer diameter R3, the abutting portion 312 will overlap the stopper 13 in the axial direction X, even if the outer ring member 22 is collapsed by the ball bearing 2, The abutment portion 312 (or the portion of the abutment portion 312 that collapses along with the outer ring member 22) will contact the stop member 13 to cushion the force of the rotor 3 from falling.

In detail, the stopper 13 of the boom 1 may be a single protrusion in a ring shape, and the protrusion may be coupled to the outer circumference of the enlarged diameter portion 12 or integrally formed with the enlarged diameter portion 12, so that the The stopper 13 can protrude from the outer circumference of the enlarged diameter portion 12; however, as shown in Fig. 7, in some embodiments of the present invention, the stopper 13 of the boom 1 can also be a plurality of spaced apart projections. The block 13a allows the stopper 13 to protrude from the outer circumference of the enlarged diameter portion 12, so that the outer diameter of the circumferential surface formed by the outer surface of each of the projections 13a is still the maximum outer diameter R3, and the plurality of convex portions The block 13a may be coupled to the outer circumference of the enlarged diameter portion 12 or integrally formed with the enlarged diameter portion 12. The stopper 13 can be coupled to the outer circumference of the enlarged diameter portion 12 by various means such as locking, snapping or splicing. For example, as shown in FIGS. 8 and 9, the enlarged diameter portion 12 of the boom 1 A plurality of fixing holes 121 may be provided, and the fixing holes 121 may be combined with a rod member 14 , and each of the rod members 14 protrudes from the outer circumference of the enlarged diameter portion 12 , whereby the stopper 13 of the boom 1 may be a single ring-shaped bump that can be inserted into the boom 1 and abuts the portion of the rod member 14 that protrudes from the outer circumference of the enlarged diameter portion 12 to form a joint on the outer circumference of the enlarged diameter portion 12. Each of the fixing holes 121 may be a screw hole, so that each of the rods 14 can be screwed to each of the fixing holes 121 .

Referring to FIG. 10, a ceiling fan motor according to a third embodiment of the present invention is different from the foregoing second embodiment in that the outer peripheral surface of the boom 1 is further provided with a spacer 15 which is disposed. Between the ball bearing 2 and the enlarged diameter portion 12, the shoulder portion 11 is formed on one side of the spacer 15 facing the first end portion 1a, and the inner ring member 21 abuts the shoulder portion 11. On the other hand, the boom 1 is further provided with an auxiliary bearing 16 between the spacer 15 and the enlarged diameter portion 12. The auxiliary bearing 16 of the boom 1 includes an auxiliary inner ring member 161 and an auxiliary outer ring member 162. The auxiliary outer ring member 162 is rotatable relative to the auxiliary inner ring member 161. The auxiliary inner ring members 161 abut against the spacer 15 and the enlarged diameter portion 12, respectively. The outer diameter of the auxiliary outer ring member 162 is larger than the outer diameter of the enlarged diameter portion 12 and the outer diameter of the inner ring member 21 such that the outer diameter of the auxiliary outer ring member 162 forms the maximum outer diameter R3. In other words, the auxiliary outer ring member 162 of the auxiliary bearing 16 of the boom 1 will have the maximum outer diameter R3. Thereby, the through portion 312 will be in the axial direction by making the minimum aperture R2 smaller than the maximum outer diameter R3. X overlaps with the auxiliary outer ring member 162, even if the outer ring member 22 is collapsed by the ball bearing 2, the abutting portion 312 will contact the auxiliary outer ring member 162 to cushion the force of the rotor 3 falling, and The auxiliary outer ring member 162 is rotatable relative to the auxiliary inner ring member 161. If the outer ring member 22 is collapsed during rotation, the auxiliary outer ring member 162 will allow the hub 32 and the sleeve 31 to continue to rotate. The stress experienced by the rotor 3 when it contacts the auxiliary outer ring member 162 is reduced.

Wherein, the auxiliary outer ring member 162 of the auxiliary bearing 16 may be coupled to the inner surface of the sleeve 31 to rotate with the sleeve 31; or the auxiliary outer ring member 162 may be retained with the inner surface of the sleeve 31. The spacing is such that the auxiliary outer ring member 162 can remain fixed while the hub 32 and the sleeve 31 are rotated, and the invention is not limited thereto.

In summary, the ceiling fan motor of the embodiment of the present invention is provided with the sleeve 31 of the rotor 3, and the minimum aperture R2 of the sleeve 31 is larger than the maximum diameter of the inner ring member 21 of the boom 1 or the ball bearing 2. The diameter R3 is capable of buffering the force of the rotor 3 falling by the boom 1 or the inner ring member 21 when the outer ring member 22 of the ball bearing 2 is collapsed by the ball bearing 2, and avoiding the rotor 3 directly contacting the stator The members of 4 are in contact to reduce damage to the ceiling fan motor when the outer ring member 22 is accidentally collapsed.

Furthermore, both the ball bearing 2 and the boom 1 are designed to bear the load. Therefore, the inner ring member 21 of the ball bearing 2 and the material and structural strength of the boom 1 are better than the stator 4, and can effectively withstand the The impact of the rotor 3 to avoid the occurrence of the falling of the rotor 3 does have the effect of improving the safety of the ceiling fan.

While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.

1‧‧‧Boom

1a‧‧‧First end

1b‧‧‧second end

11‧‧‧ shoulder

11’‧‧‧Shoulder

12‧‧‧Extended section

2‧‧‧Ball bearings

2'‧‧‧ Ball Bearings

21‧‧‧ Inner ring

21’‧‧‧ Inner ring

22‧‧‧Outer ring

22’‧‧‧Outer ring

3‧‧‧Rotor

31‧‧‧ casing

311‧‧‧through holes

312‧‧‧Relief Department

313‧‧‧stops

32‧‧·wheels

34‧‧‧Flexible parts

4‧‧‧ Stator

41‧‧‧ iron core

42‧‧‧ coil

X‧‧‧ axial

Claims (24)

A ceiling fan motor includes: a boom, the two ends of which are respectively a first end portion and a second end portion, the outer peripheral surface of the boom is provided with an enlarged diameter portion, and the enlarged diameter portion faces the first One side of the end portion has a shoulder portion, and a stopper is disposed on the outer circumference of the enlarged diameter portion, the stopper member has a maximum outer diameter; a ball bearing, the ball bearing includes an inner ring member and an outer ring member. The inner ring member is coupled to the outer peripheral surface of the boom, and the inner ring member abuts the shoulder portion, the outer diameter of the stopper member is larger than the outer diameter of the inner ring member; and the rotor includes a sleeve. The inner surface of the sleeve is coupled to the outer ring member, the sleeve is provided with a fixing portion abutting a side surface of the outer ring member facing the first end portion; and a stator, the stator is coupled to the stator a second end of the boom; wherein, in a direction perpendicular to one of the booms, a portion of the outer peripheral surface of the boom that is coupled to the inner ring member has a diameter, and the sleeve has a minimum aperture The minimum aperture is larger than the diameter, and the inner ring of the boom or the ball bearing has a maximum outer diameter, the minimum aperture being smaller than the diameter Large outer diameter. The ceiling fan motor of claim 1, wherein a center of the sleeve is provided with a constant hole, and the hanger passes through the through hole, and the sleeve is provided with a stopping portion, the blocking portion facing the through hole Extending beyond the yoke, the stop has the smallest aperture toward a surface of the through hole. The ceiling fan motor of claim 2, wherein the outer diameter of the enlarged diameter portion is smaller than the outer diameter of the inner ring member, the inner ring member has the maximum outer diameter, and the retaining portion is in the axial direction. The inner ring members overlap. The ceiling fan motor of claim 2, wherein the blocking portion is a ring-shaped projection that is coupled to the inner surface of the sleeve or integrally formed with the sleeve. The ceiling fan motor of claim 2, wherein the blocking portion is a plurality of spaced apart bumps, the plurality of bumps being respectively coupled to the inner surface of the sleeve or integral with the sleeve forming. The ceiling fan motor of claim 1, wherein the abutting portion has the smallest aperture toward a surface of the through hole, and the abutting portion overlaps the stopper of the boom in the axial direction. The ceiling fan motor of claim 1 or 6, wherein the stopper of the boom is a ring-shaped protrusion, and the protrusion is coupled to the outer circumference of the enlarged diameter portion or the enlarged diameter portion. One piece. The ceiling fan motor of claim 7, wherein the enlarged diameter portion is provided with a plurality of fixing holes, each of the fixing holes is configured to be coupled with a rod member, and each of the rod members protrudes from the outer circumference of the enlarged diameter portion, the convex portion The block is inserted into the boom and abuts the portion of each of the rods protruding from the outer circumference of the enlarged diameter portion to form a joint on the outer circumference of the enlarged diameter portion. The ceiling fan motor of claim 1 or 6, wherein the stopper of the boom is a plurality of spaced apart bumps, the plurality of bumps being respectively coupled to the outer circumference of the enlarged diameter portion, or The diameter is integrally formed. The ceiling fan motor of claim 1 or 6, wherein the other ball bearing comprises an inner ring member and an outer ring member, the enlarged diameter portion facing the second end portion One shoulder is formed on one side, and the inner ring member of the other ball bearing is coupled to the outer peripheral surface of the boom and abuts the other shoulder. The rotor is provided with an elastic member, and the elastic member abuts the other ball. The outer ring of the bearing faces a side surface of the second end. A ceiling fan motor comprising: a boom, the two ends of which are respectively a first end portion and a second end portion, the outer peripheral surface of the boom is provided with an enlarged diameter portion and a gasket; and a ball bearing, the ball bearing The ball bearing comprises an inner ring member and an outer ring member, the inner ring member is coupled to the outer peripheral surface of the boom, the spacer is disposed between the ball bearing and the enlarged diameter portion, the gasket facing the first end One side of the portion has a shoulder portion, and the inner ring member abuts the shoulder portion, and the boom is further provided with an auxiliary bearing between the spacer and the enlarged diameter portion, the auxiliary bearing includes an auxiliary inner ring member and An auxiliary outer ring member abutting the spacer and the enlarged diameter portion respectively, the auxiliary outer ring The outer diameter of the member is larger than the outer diameter of the enlarged diameter portion and the outer diameter of the inner ring member, so that the auxiliary outer ring member of the auxiliary bearing has a maximum outer diameter; and a rotor including a sleeve, the sleeve The inner surface is combined with the outer ring member, the sleeve is provided with a fixing portion abutting a side surface of the outer ring member facing the first end portion of the ball bearing; and a stator, the stator is coupled with the hanging portion a second end of the rod; wherein, in a direction perpendicular to one of the booms, a portion of the outer peripheral surface of the boom that is coupled to the auxiliary inner ring member of the auxiliary bearing has a diameter, and the sleeve has a diameter A minimum aperture that is greater than the diameter, the auxiliary outer ring of the auxiliary bearing having a maximum outer diameter that is less than the maximum outer diameter. The ceiling fan motor of claim 11, wherein the abutting portion has the minimum aperture toward a surface of the through hole, and the auxiliary portion of the auxiliary portion of the auxiliary bearing of the suspension rod in the axial direction overlapping. The ceiling fan motor of claim 11, comprising another ball bearing, the other ball bearing comprising an inner ring member and an outer ring member, the enlarged diameter portion facing one side of the second end portion Forming another shoulder portion, the inner ring member of the other ball bearing is coupled to the outer peripheral surface of the boom and abutting the other shoulder portion, the rotor is provided with an elastic member that abuts the other ball bearing The outer ring member faces a side surface of the second end. A ceiling fan motor includes: a boom, the two ends of which are respectively a first end portion and a second end portion, the outer peripheral surface of the boom is provided with an enlarged diameter portion, and the enlarged diameter portion faces the first end One side of the portion has a shoulder portion; a ball bearing, the ball bearing includes an inner ring member and an outer ring member, the inner ring member is coupled to the outer peripheral surface of the boom, and the inner ring member abuts the shoulder portion Another ball bearing, the other ball bearing includes an inner ring member and an outer ring member, the enlarged diameter portion forms another shoulder toward one side of the second end portion, and the inner ring member of the other ball bearing Combined with the An outer peripheral surface of the boom abuts against the other shoulder; a rotor comprising a sleeve, the inner surface of the sleeve being coupled to the outer ring member, the sleeve being provided with a retaining portion, the retaining portion being abutted Attaching the outer ring member to a side surface of the first end portion, the rotor is provided with an elastic member abutting the one side surface of the outer ring member facing the second end portion; and The stator is coupled to the second end of the boom; wherein, in a direction perpendicular to one of the booms, a portion of the outer peripheral surface of the boom that is coupled to the inner ring member has a diameter, the sleeve The tube has a minimum aperture that is greater than the diameter, and the inner ring member of the boom or the ball bearing has a maximum outer diameter that is less than the maximum outer diameter. The ceiling fan motor of claim 14, wherein a center of the sleeve is provided with a constant hole, and the hanger passes through the through hole, and the sleeve is provided with a stopping portion, the blocking portion facing the through hole Extending beyond the yoke, the stop has the smallest aperture toward a surface of the through hole. The ceiling fan motor of claim 15, wherein an outer diameter of the enlarged diameter portion is smaller than an outer diameter of the inner ring member, the inner ring member has the maximum outer diameter, and the retaining portion is in the axial direction. The inner ring members overlap. The ceiling fan motor of claim 14, comprising another ball bearing, the other ball bearing comprising an inner ring member and an outer ring member, the enlarged diameter portion facing one side of the second end portion Forming another shoulder portion, the inner ring member of the other ball bearing is coupled to the outer peripheral surface of the boom and abutting the other shoulder portion, the rotor is provided with an elastic member that abuts the other ball bearing The outer ring member faces a side surface of the second end. A ceiling fan motor comprising: a boom having a shoulder; a ball bearing, the ball bearing comprising an inner ring member and an outer ring member, the inner ring member being coupled to the outer peripheral surface of the boom, the inner ring member The diameter of the boom is larger than the inner diameter of the inner ring member, and the inner ring member abuts the a shoulder portion; the rotor includes a sleeve, the inner surface of the sleeve is coupled to the outer ring member, the sleeve is provided with a fastening portion, the abutting portion abuts the outer ring member; and the stator The stator is coupled to the boom; wherein, in a direction perpendicular to one of the booms, a portion of the outer peripheral surface of the boom that is coupled to the inner ring member has a diameter, and the sleeve has a minimum aperture, the minimum The bore is larger than the diameter, and the boom or the inner ring of the ball bearing has a maximum outer diameter that is less than the maximum outer diameter. The ceiling fan motor of claim 18, wherein the two ends of the boom are a first end and a second end, the shoulder facing the first end, and the abutting portion abuts The outer ring member faces a side surface of the first end portion, and the stator is coupled to the second end portion of the boom. The ceiling fan motor of claim 19, wherein the outer peripheral surface of the boom is provided with an enlarged diameter portion formed on one side of the enlarged diameter portion toward the first end portion. The ceiling fan motor of claim 20, wherein a center of the sleeve is provided with a constant hole, and the hanger passes through the through hole, and the sleeve is provided with a stopping portion, and the stopping portion faces the through hole Extending beyond the yoke, the stop has the smallest aperture toward a surface of the through hole. The ceiling fan motor of claim 21, wherein an outer diameter of the enlarged diameter portion is smaller than an outer diameter of the inner ring member, the inner ring member has the maximum outer diameter, and the retaining portion is in the axial direction. The inner ring members overlap. The ceiling fan motor of claim 18, further comprising another ball bearing, wherein the other ball bearing comprises an inner ring member and an outer ring member, the enlarged diameter portion facing one side of the second end portion Forming another shoulder portion, the inner ring member of the other ball bearing is coupled to the outer peripheral surface of the boom and abutting the other shoulder portion, the rotor is provided with an elastic member that abuts the other ball bearing The outer ring member faces a side surface of the second end. A ceiling fan provided with any one of the claims 1, 2, 3, 6, 11 to 23 A ceiling fan motor, wherein the rotor includes a hub coupled to the sleeve away from one side of the abutment, and the hub incorporates a plurality of blades.